Asterisk - The Open Source Telephony Project GIT-master-7988d11
Loading...
Searching...
No Matches
Data Structures | Macros | Enumerations | Functions | Variables
channel.c File Reference

Channel Management. More...

#include "asterisk.h"
#include "asterisk/_private.h"
#include <sys/time.h>
#include <signal.h>
#include <math.h>
#include "asterisk/paths.h"
#include "asterisk/pbx.h"
#include "asterisk/frame.h"
#include "asterisk/mod_format.h"
#include "asterisk/sched.h"
#include "asterisk/channel.h"
#include "asterisk/cel.h"
#include "asterisk/musiconhold.h"
#include "asterisk/say.h"
#include "asterisk/file.h"
#include "asterisk/cli.h"
#include "asterisk/translate.h"
#include "asterisk/manager.h"
#include "asterisk/chanvars.h"
#include "asterisk/linkedlists.h"
#include "asterisk/indications.h"
#include "asterisk/causes.h"
#include "asterisk/callerid.h"
#include "asterisk/utils.h"
#include "asterisk/lock.h"
#include "asterisk/app.h"
#include "asterisk/transcap.h"
#include "asterisk/devicestate.h"
#include "asterisk/threadstorage.h"
#include "asterisk/slinfactory.h"
#include "asterisk/audiohook.h"
#include "asterisk/framehook.h"
#include "asterisk/timing.h"
#include "asterisk/autochan.h"
#include "asterisk/stringfields.h"
#include "asterisk/global_datastores.h"
#include "asterisk/channel_internal.h"
#include "asterisk/features.h"
#include "asterisk/bridge.h"
#include "asterisk/test.h"
#include "asterisk/stasis_channels.h"
#include "asterisk/max_forwards.h"
#include "asterisk/stream.h"
#include "asterisk/message.h"
#include "asterisk/rtp_engine.h"
#include "channelstorage.h"
Include dependency graph for channel.c:

Go to the source code of this file.

Data Structures

struct  ast_party_id_ies
 
struct  ast_party_name_ies
 
struct  ast_party_number_ies
 
struct  ast_party_redirecting_reason_ies
 
struct  ast_party_subaddress_ies
 
struct  ast_silence_generator
 
struct  backends
 the list of registered channel types More...
 
struct  causes_map
 map AST_CAUSE's to readable string representations More...
 
struct  chanlist
 List of channel drivers. More...
 
struct  external_vars
 
struct  manager_channel_variable
 List of channel variables to append to all channel-related events. More...
 
struct  namedgroup_member
 Named group member structure. More...
 
struct  plc_ds
 
struct  set_format_access
 
struct  suppress_data
 
struct  tonepair_def
 
struct  tonepair_state
 

Macros

#define AST_DEFAULT_EMULATE_DTMF_DURATION   100
 
#define AST_MIN_DTMF_GAP   45
 
#define DEFAULT_AMA_FLAGS   AST_AMA_DOCUMENTATION
 
#define DEFAULT_EMULATE_MF_DURATION   55
 
#define FORMAT   "%-15.15s %-40.40s %-13.13s %-13.13s %-13.13s %-13.13s\n"
 
#define STATE2STR_BUFSIZE   32
 

Enumerations

enum  {
  AST_CONNECTED_LINE_NUMBER , AST_CONNECTED_LINE_NAME , AST_CONNECTED_LINE_NUMBER_PLAN , AST_CONNECTED_LINE_ID_PRESENTATION ,
  AST_CONNECTED_LINE_SOURCE , AST_CONNECTED_LINE_SUBADDRESS , AST_CONNECTED_LINE_SUBADDRESS_TYPE , AST_CONNECTED_LINE_SUBADDRESS_ODD_EVEN ,
  AST_CONNECTED_LINE_SUBADDRESS_VALID , AST_CONNECTED_LINE_TAG , AST_CONNECTED_LINE_VERSION , AST_CONNECTED_LINE_NAME_VALID ,
  AST_CONNECTED_LINE_NAME_CHAR_SET , AST_CONNECTED_LINE_NAME_PRESENTATION , AST_CONNECTED_LINE_NUMBER_VALID , AST_CONNECTED_LINE_NUMBER_PRESENTATION ,
  AST_CONNECTED_LINE_PRIV_NUMBER , AST_CONNECTED_LINE_PRIV_NUMBER_PLAN , AST_CONNECTED_LINE_PRIV_NUMBER_VALID , AST_CONNECTED_LINE_PRIV_NUMBER_PRESENTATION ,
  AST_CONNECTED_LINE_PRIV_NAME , AST_CONNECTED_LINE_PRIV_NAME_VALID , AST_CONNECTED_LINE_PRIV_NAME_CHAR_SET , AST_CONNECTED_LINE_PRIV_NAME_PRESENTATION ,
  AST_CONNECTED_LINE_PRIV_SUBADDRESS , AST_CONNECTED_LINE_PRIV_SUBADDRESS_TYPE , AST_CONNECTED_LINE_PRIV_SUBADDRESS_ODD_EVEN , AST_CONNECTED_LINE_PRIV_SUBADDRESS_VALID ,
  AST_CONNECTED_LINE_PRIV_TAG
}
 Element identifiers for connected line indication frame data. More...
 
enum  {
  AST_REDIRECTING_FROM_NUMBER , AST_REDIRECTING_FROM_NAME , AST_REDIRECTING_FROM_NUMBER_PLAN , AST_REDIRECTING_FROM_ID_PRESENTATION ,
  AST_REDIRECTING_TO_NUMBER , AST_REDIRECTING_TO_NAME , AST_REDIRECTING_TO_NUMBER_PLAN , AST_REDIRECTING_TO_ID_PRESENTATION ,
  AST_REDIRECTING_REASON_CODE , AST_REDIRECTING_COUNT , AST_REDIRECTING_FROM_SUBADDRESS , AST_REDIRECTING_FROM_SUBADDRESS_TYPE ,
  AST_REDIRECTING_FROM_SUBADDRESS_ODD_EVEN , AST_REDIRECTING_FROM_SUBADDRESS_VALID , AST_REDIRECTING_TO_SUBADDRESS , AST_REDIRECTING_TO_SUBADDRESS_TYPE ,
  AST_REDIRECTING_TO_SUBADDRESS_ODD_EVEN , AST_REDIRECTING_TO_SUBADDRESS_VALID , AST_REDIRECTING_FROM_TAG , AST_REDIRECTING_TO_TAG ,
  AST_REDIRECTING_VERSION , AST_REDIRECTING_FROM_NAME_VALID , AST_REDIRECTING_FROM_NAME_CHAR_SET , AST_REDIRECTING_FROM_NAME_PRESENTATION ,
  AST_REDIRECTING_FROM_NUMBER_VALID , AST_REDIRECTING_FROM_NUMBER_PRESENTATION , AST_REDIRECTING_TO_NAME_VALID , AST_REDIRECTING_TO_NAME_CHAR_SET ,
  AST_REDIRECTING_TO_NAME_PRESENTATION , AST_REDIRECTING_TO_NUMBER_VALID , AST_REDIRECTING_TO_NUMBER_PRESENTATION , AST_REDIRECTING_ORIG_NUMBER ,
  AST_REDIRECTING_ORIG_NUMBER_VALID , AST_REDIRECTING_ORIG_NUMBER_PLAN , AST_REDIRECTING_ORIG_NUMBER_PRESENTATION , AST_REDIRECTING_ORIG_NAME ,
  AST_REDIRECTING_ORIG_NAME_VALID , AST_REDIRECTING_ORIG_NAME_CHAR_SET , AST_REDIRECTING_ORIG_NAME_PRESENTATION , AST_REDIRECTING_ORIG_SUBADDRESS ,
  AST_REDIRECTING_ORIG_SUBADDRESS_TYPE , AST_REDIRECTING_ORIG_SUBADDRESS_ODD_EVEN , AST_REDIRECTING_ORIG_SUBADDRESS_VALID , AST_REDIRECTING_ORIG_TAG ,
  AST_REDIRECTING_ORIG_REASON_CODE , AST_REDIRECTING_PRIV_TO_NUMBER , AST_REDIRECTING_PRIV_TO_NUMBER_PLAN , AST_REDIRECTING_PRIV_TO_NUMBER_VALID ,
  AST_REDIRECTING_PRIV_TO_NUMBER_PRESENTATION , AST_REDIRECTING_PRIV_TO_NAME , AST_REDIRECTING_PRIV_TO_NAME_VALID , AST_REDIRECTING_PRIV_TO_NAME_CHAR_SET ,
  AST_REDIRECTING_PRIV_TO_NAME_PRESENTATION , AST_REDIRECTING_PRIV_TO_SUBADDRESS , AST_REDIRECTING_PRIV_TO_SUBADDRESS_TYPE , AST_REDIRECTING_PRIV_TO_SUBADDRESS_ODD_EVEN ,
  AST_REDIRECTING_PRIV_TO_SUBADDRESS_VALID , AST_REDIRECTING_PRIV_TO_TAG , AST_REDIRECTING_PRIV_FROM_NUMBER , AST_REDIRECTING_PRIV_FROM_NUMBER_PLAN ,
  AST_REDIRECTING_PRIV_FROM_NUMBER_VALID , AST_REDIRECTING_PRIV_FROM_NUMBER_PRESENTATION , AST_REDIRECTING_PRIV_FROM_NAME , AST_REDIRECTING_PRIV_FROM_NAME_VALID ,
  AST_REDIRECTING_PRIV_FROM_NAME_CHAR_SET , AST_REDIRECTING_PRIV_FROM_NAME_PRESENTATION , AST_REDIRECTING_PRIV_FROM_SUBADDRESS , AST_REDIRECTING_PRIV_FROM_SUBADDRESS_TYPE ,
  AST_REDIRECTING_PRIV_FROM_SUBADDRESS_ODD_EVEN , AST_REDIRECTING_PRIV_FROM_SUBADDRESS_VALID , AST_REDIRECTING_PRIV_FROM_TAG , AST_REDIRECTING_PRIV_ORIG_NUMBER ,
  AST_REDIRECTING_PRIV_ORIG_NUMBER_VALID , AST_REDIRECTING_PRIV_ORIG_NUMBER_PLAN , AST_REDIRECTING_PRIV_ORIG_NUMBER_PRESENTATION , AST_REDIRECTING_PRIV_ORIG_NAME ,
  AST_REDIRECTING_PRIV_ORIG_NAME_VALID , AST_REDIRECTING_PRIV_ORIG_NAME_CHAR_SET , AST_REDIRECTING_PRIV_ORIG_NAME_PRESENTATION , AST_REDIRECTING_PRIV_ORIG_SUBADDRESS ,
  AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_TYPE , AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_ODD_EVEN , AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_VALID , AST_REDIRECTING_PRIV_ORIG_TAG ,
  AST_REDIRECTING_REASON_STR , AST_REDIRECTING_ORIG_REASON_STR
}
 Element identifiers for redirecting indication frame data. More...
 
enum  DtmfDirection { DTMF_RECEIVED , DTMF_SENT }
 

Functions

int __ast_answer (struct ast_channel *chan, unsigned int delay)
 Answer a channel, with a selectable delay before returning.
 
static void __ast_change_name_nolink (struct ast_channel *chan, const char *newname)
 this function simply changes the name of the channel and issues a manager_event with out unlinking and linking the channel from the ao2_container. This should only be used when the channel has already been unlinked from the ao2_container.
 
struct ast_channel__ast_channel_alloc (int needqueue, int state, const char *cid_num, const char *cid_name, const char *acctcode, const char *exten, const char *context, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, enum ama_flags amaflag, struct ast_endpoint *endpoint, const char *file, int line, const char *function, const char *name_fmt,...)
 Create a channel structure.
 
static struct ast_channel__ast_channel_alloc_ap (int needqueue, int state, const char *cid_num, const char *cid_name, const char *acctcode, const char *exten, const char *context, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, enum ama_flags amaflag, struct ast_endpoint *endpoint, struct ast_channel_initializers *initializers, const char *file, int line, const char *function, const char *name_fmt, va_list ap)
 Create a new channel structure.
 
struct ast_channel__ast_channel_alloc_with_initializers (int needqueue, int state, const char *cid_num, const char *cid_name, const char *acctcode, const char *exten, const char *context, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, enum ama_flags amaflag, struct ast_endpoint *endpoint, struct ast_channel_initializers *initializers, const char *file, int line, const char *function, const char *name_fmt,...)
 Create a channel structure.
 
struct ast_channel__ast_dummy_channel_alloc (const char *file, int line, const char *function)
 
static int __ast_queue_frame (struct ast_channel *chan, struct ast_frame *fin, int head, struct ast_frame *after)
 
static struct ast_frame__ast_read (struct ast_channel *chan, int dropaudio, int dropnondefault)
 
struct ast_channel__ast_request_and_dial (const char *type, struct ast_format_cap *cap, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *addr, int timeout, int *outstate, const char *cid_num, const char *cid_name, struct outgoing_helper *oh)
 Request a channel of a given type, with data as optional information used by the low level module and attempt to place a call on it.
 
static void adjust_frame_for_plc (struct ast_channel *chan, struct ast_frame *frame, struct ast_datastore *datastore)
 
static void apply_plc (struct ast_channel *chan, struct ast_frame *frame)
 
int ast_activate_generator (struct ast_channel *chan, struct ast_generator *gen, void *params)
 
int ast_active_channels (void)
 returns number of active/allocated channels
 
int ast_answer (struct ast_channel *chan)
 Answer a channel.
 
int ast_auto_answer (struct ast_channel *chan)
 Answer a channel, if it's not already answered.
 
int ast_call (struct ast_channel *chan, const char *addr, int timeout)
 Make a call.
 
struct ast_channelast_call_forward (struct ast_channel *caller, struct ast_channel *orig, int *timeout, struct ast_format_cap *cap, struct outgoing_helper *oh, int *outstate)
 Forwards a call to a new channel specified by the original channel's call_forward str. If possible, the new forwarded channel is created and returned while the original one is terminated.
 
const char * ast_cause2str (int cause)
 Gives the string form of a given hangup cause.
 
void ast_change_name (struct ast_channel *chan, const char *newname)
 Change channel name.
 
const char * ast_channel_amaflags2string (enum ama_flags flag)
 Convert the enum representation of an AMA flag to a string representation.
 
struct ast_channelast_channel_bridge_peer (struct ast_channel *chan)
 Get the channel's bridge peer only if the bridge is two-party.
 
struct ast_channelast_channel_callback (ao2_callback_data_fn *cb_fn, void *arg, void *data, int ao2_flags)
 Call a function with every active channel.
 
int ast_channel_cc_params_init (struct ast_channel *chan, const struct ast_cc_config_params *base_params)
 Set up datastore with CCSS parameters for a channel.
 
void ast_channel_clear_flag (struct ast_channel *chan, unsigned int flag)
 Clear a flag on a channel.
 
void ast_channel_clear_softhangup (struct ast_channel *chan, int flag)
 Clear a set of softhangup flags from a channel.
 
void ast_channel_close_storage (void)
 
int ast_channel_cmpwhentohangup_tv (struct ast_channel *chan, struct timeval offset)
 Compare a offset with when to hangup channel.
 
int ast_channel_connected_line_sub (struct ast_channel *autoservice_chan, struct ast_channel *sub_chan, const void *connected_info, int is_frame)
 Run a connected line interception subroutine and update a channel's connected line information.
 
int ast_channel_datastore_add (struct ast_channel *chan, struct ast_datastore *datastore)
 Add a datastore to a channel.
 
struct ast_datastoreast_channel_datastore_find (struct ast_channel *chan, const struct ast_datastore_info *info, const char *uid)
 Find a datastore on a channel.
 
int ast_channel_datastore_inherit (struct ast_channel *from, struct ast_channel *to)
 Inherit datastores from a parent to a child.
 
int ast_channel_datastore_remove (struct ast_channel *chan, struct ast_datastore *datastore)
 Remove a datastore from a channel.
 
int ast_channel_defer_dtmf (struct ast_channel *chan)
 Set defer DTMF flag on channel.
 
static void ast_channel_destructor (void *obj)
 Free a channel structure.
 
int ast_channel_early_bridge (struct ast_channel *c0, struct ast_channel *c1)
 Bridge two channels together (early)
 
void ast_channel_end_dtmf (struct ast_channel *chan, char digit, struct timeval start, const char *why)
 Simulate a DTMF end on a broken bridge channel.
 
enum ast_channel_error ast_channel_errno (void)
 Get error code for latest channel operation.
 
int ast_channel_feature_hooks_append (struct ast_channel *chan, struct ast_bridge_features *features)
 Appends to the channel-attached features a channel has access to upon being bridged.
 
struct ast_bridge_featuresast_channel_feature_hooks_get (struct ast_channel *chan)
 Gets the channel-attached features a channel has access to upon being bridged.
 
int ast_channel_feature_hooks_replace (struct ast_channel *chan, struct ast_bridge_features *features)
 Sets the channel-attached features a channel has access to upon being bridged.
 
struct varsheadast_channel_get_ari_vars (struct ast_channel *chan)
 Gets the variables for a given channel, as specified by ast_channel_set_ari_vars().
 
struct ast_bridgeast_channel_get_bridge (const struct ast_channel *chan)
 Get the bridge associated with a channel.
 
struct ast_bridge_channelast_channel_get_bridge_channel (struct ast_channel *chan)
 Get a reference to the channel's bridge pointer.
 
struct ast_channelast_channel_get_by_exten (const char *exten, const char *context)
 Find a channel by extension and context.
 
struct ast_channelast_channel_get_by_name (const char *name)
 Find a channel by name or uniqueid.
 
struct ast_channelast_channel_get_by_name_prefix (const char *name, size_t name_len)
 Find a channel by a name prefix.
 
struct ast_channelast_channel_get_by_uniqueid (const char *uniqueid)
 Find a channel by a uniqueid.
 
int ast_channel_get_cc_agent_type (struct ast_channel *chan, char *agent_type, size_t size)
 Find the appropriate CC agent type to use given a channel.
 
struct ast_cc_config_paramsast_channel_get_cc_config_params (struct ast_channel *chan)
 Get the CCSS parameters from a channel.
 
const char * ast_channel_get_current_storage_driver_name (void)
 Get the name of the current channel storage driver.
 
int ast_channel_get_device_name (struct ast_channel *chan, char *device_name, size_t name_buffer_length)
 Get a device name given its channel structure.
 
int ast_channel_get_duration (struct ast_channel *chan)
 Obtain how long the channel since the channel was created.
 
int64_t ast_channel_get_duration_ms (struct ast_channel *chan)
 Obtain how long it's been, in milliseconds, since the channel was created.
 
int ast_channel_get_intercept_mode (void)
 Am I currently running an intercept dialplan routine.
 
struct varsheadast_channel_get_manager_vars (struct ast_channel *chan)
 Gets the variables for a given channel, as specified by ast_channel_set_manager_vars().
 
int ast_channel_get_up_time (struct ast_channel *chan)
 Obtain how long it has been since the channel was answered.
 
int64_t ast_channel_get_up_time_ms (struct ast_channel *chan)
 Obtain how long it has been since the channel was answered in ms.
 
struct varsheadast_channel_get_vars (struct ast_channel *chan)
 Gets the variables for a given channel, as set using pbx_builtin_setvar_helper().
 
void ast_channel_hangupcause_hash_set (struct ast_channel *chan, const struct ast_control_pvt_cause_code *cause_code, int datalen)
 Sets the HANGUPCAUSE hash and optionally the SIP_CAUSE hash on the given channel.
 
int ast_channel_has_ari_vars (void)
 Return whether or not any ARI variables have been set.
 
int ast_channel_has_audio_frame_or_monitor (struct ast_channel *chan)
 Check if the channel has active audiohooks, active framehooks, or a monitor.
 
int ast_channel_has_hook_requiring_audio (struct ast_channel *chan)
 Check if the channel has any active hooks that require audio.
 
int ast_channel_has_manager_vars (void)
 Return whether or not any manager variables have been set.
 
void ast_channel_inherit_variables (const struct ast_channel *parent, struct ast_channel *child)
 Inherits channel variable from parent to child channel.
 
int ast_channel_is_bridged (const struct ast_channel *chan)
 Determine if a channel is in a bridge.
 
int ast_channel_is_leaving_bridge (struct ast_channel *chan)
 Determine if a channel is leaving a bridge, but not hung up.
 
struct ast_channel_iteratorast_channel_iterator_all_new (void)
 Create a new channel iterator.
 
struct ast_channel_iteratorast_channel_iterator_by_exten_new (const char *exten, const char *context)
 Create a new channel iterator based on extension.
 
struct ast_channel_iteratorast_channel_iterator_by_name_new (const char *name, size_t name_len)
 Create a new channel iterator based on name.
 
struct ast_channel_iteratorast_channel_iterator_destroy (struct ast_channel_iterator *i)
 Destroy a channel iterator.
 
struct ast_channelast_channel_iterator_next (struct ast_channel_iterator *i)
 Get the next channel for a channel iterator.
 
int ast_channel_make_compatible (struct ast_channel *chan, struct ast_channel *peer)
 Make the frame formats of two channels compatible.
 
static int ast_channel_make_compatible_helper (struct ast_channel *from, struct ast_channel *to)
 Set up translation from one channel to another.
 
int ast_channel_move (struct ast_channel *dest, struct ast_channel *source)
 Move a channel from its current location to a new location.
 
void ast_channel_name_to_dial_string (char *channel_name)
 Removes the trailing identifiers from a channel name string.
 
int ast_channel_open_storage ()
 
int ast_channel_queryoption (struct ast_channel *chan, int option, void *data, int *datalen, int block)
 Checks the value of an option.
 
void ast_channel_queue_connected_line_update (struct ast_channel *chan, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update)
 Queue a connected line update frame on a channel.
 
void ast_channel_queue_redirecting_update (struct ast_channel *chan, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update)
 Queue a redirecting update frame on a channel.
 
const char * ast_channel_reason2str (int reason)
 return an english explanation of the code returned thru __ast_request_and_dial's 'outstate' argument
 
int ast_channel_redirecting_sub (struct ast_channel *autoservice_chan, struct ast_channel *sub_chan, const void *redirecting_info, int is_frame)
 Run a redirecting interception subroutine and update a channel's redirecting information.
 
int ast_channel_register (const struct ast_channel_tech *tech)
 Register a new telephony channel in Asterisk.
 
struct ast_channelast_channel_release (struct ast_channel *chan)
 Unlink and release reference to a channel.
 
void ast_channel_req_accountcodes (struct ast_channel *chan, const struct ast_channel *requestor, enum ast_channel_requestor_relationship relationship)
 Setup new channel accountcodes from the requestor channel after ast_request().
 
void ast_channel_req_accountcodes_precious (struct ast_channel *chan, const struct ast_channel *requestor, enum ast_channel_requestor_relationship relationship)
 Setup new channel accountcodes from the requestor channel after ast_request().
 
int ast_channel_request_stream_topology_change (struct ast_channel *chan, struct ast_stream_topology *topology, void *change_source)
 Request that the stream topology of a channel change.
 
int ast_channel_sendhtml (struct ast_channel *chan, int subclass, const char *data, int datalen)
 Sends HTML on given channel Send HTML or URL on link.
 
int ast_channel_sendurl (struct ast_channel *chan, const char *url)
 Sends a URL on a given link Send URL on link.
 
void ast_channel_set_ari_vars (size_t varc, char **vars)
 Sets the variables to be stored in the ari_vars field of all snapshots.
 
void ast_channel_set_caller (struct ast_channel *chan, const struct ast_party_caller *caller, const struct ast_set_party_caller *update)
 Set the caller id information in the Asterisk channel.
 
void ast_channel_set_caller_event (struct ast_channel *chan, const struct ast_party_caller *caller, const struct ast_set_party_caller *update)
 Set the caller id information in the Asterisk channel and generate an AMI event if the caller id name or number changed.
 
void ast_channel_set_connected_line (struct ast_channel *chan, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update)
 Set the connected line information in the Asterisk channel.
 
void ast_channel_set_fd (struct ast_channel *chan, int which, int fd)
 
void ast_channel_set_flag (struct ast_channel *chan, unsigned int flag)
 Set a flag on a channel.
 
void ast_channel_set_manager_vars (size_t varc, char **vars)
 Sets the variables to be stored in the manager_vars field of all snapshots.
 
void ast_channel_set_redirecting (struct ast_channel *chan, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update)
 Set the redirecting id information in the Asterisk channel.
 
int ast_channel_setoption (struct ast_channel *chan, int option, void *data, int datalen, int block)
 Sets an option on a channel.
 
void ast_channel_setwhentohangup_tv (struct ast_channel *chan, struct timeval offset)
 Set when to hangup channel.
 
static int ast_channel_softhangup_cb (void *obj, void *arg, void *data, int flags)
 
void ast_channel_softhangup_withcause_locked (struct ast_channel *chan, int causecode)
 Lock the given channel, then request softhangup on the channel with the given causecode.
 
struct ast_silence_generatorast_channel_start_silence_generator (struct ast_channel *chan)
 Starts a silence generator on the given channel.
 
void ast_channel_stop_silence_generator (struct ast_channel *chan, struct ast_silence_generator *state)
 Stops a previously-started silence generator on the given channel.
 
int ast_channel_stream_topology_changed (struct ast_channel *chan, struct ast_stream_topology *topology)
 Provide notice to a channel that the stream topology has changed.
 
int ast_channel_stream_topology_changed_externally (struct ast_channel *chan)
 Provide notice from a channel that the topology has changed on it as a result of the remote party renegotiating.
 
enum ama_flags ast_channel_string2amaflag (const char *flag)
 Convert a string to a detail record AMA flag.
 
int ast_channel_supports_html (struct ast_channel *chan)
 Checks for HTML support on a channel.
 
int ast_channel_suppress (struct ast_channel *chan, unsigned int direction, enum ast_frame_type frametype)
 Suppress passing of a frame type on a channel.
 
void ast_channel_undefer_dtmf (struct ast_channel *chan)
 Unset defer DTMF flag on channel.
 
void ast_channel_unlink (struct ast_channel *chan)
 Remove a channel from the global channels container.
 
void ast_channel_unregister (const struct ast_channel_tech *tech)
 Unregister channel driver.
 
int ast_channel_unsuppress (struct ast_channel *chan, unsigned int direction, enum ast_frame_type frametype)
 Stop suppressing of a frame type on a channel.
 
void ast_channel_update_connected_line (struct ast_channel *chan, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update)
 Indicate that the connected line information has changed.
 
void ast_channel_update_redirecting (struct ast_channel *chan, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update)
 Indicate that the redirecting id has changed.
 
struct ast_channelast_channel_yank (struct ast_channel *yankee)
 Gain control of a channel in the system.
 
int ast_channels_init (void)
 
struct ast_variableast_channeltype_list (void)
 return an ast_variable list of channeltypes
 
int ast_check_hangup (struct ast_channel *chan)
 Checks to see if a channel is needing hang up.
 
int ast_check_hangup_locked (struct ast_channel *chan)
 
int ast_connected_line_build_data (unsigned char *data, size_t datalen, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update)
 Build the connected line information data frame.
 
void ast_connected_line_copy_from_caller (struct ast_party_connected_line *dest, const struct ast_party_caller *src)
 Copy the caller information to the connected line information.
 
void ast_connected_line_copy_to_caller (struct ast_party_caller *dest, const struct ast_party_connected_line *src)
 Copy the connected line information to the caller information.
 
int ast_connected_line_parse_data (const unsigned char *data, size_t datalen, struct ast_party_connected_line *connected)
 Parse connected line indication frame data.
 
void ast_deactivate_generator (struct ast_channel *chan)
 
static void ast_dummy_channel_destructor (void *obj)
 Free a dummy channel structure.
 
const struct ast_channel_techast_get_channel_tech (const char *name)
 Get handle to channel driver based on name.
 
ast_group_t ast_get_group (const char *s)
 
struct ast_namedgroups * ast_get_namedgroups (const char *s)
 Create an ast_namedgroups set with group names from comma separated string.
 
void ast_hangup (struct ast_channel *chan)
 Hangup a channel.
 
int ast_indicate (struct ast_channel *chan, int condition)
 Indicates condition of channel.
 
int ast_indicate_data (struct ast_channel *chan, int _condition, const void *data, size_t datalen)
 Indicates condition of channel, with payload.
 
void ast_install_music_functions (int(*start_ptr)(struct ast_channel *, const char *, const char *), void(*stop_ptr)(struct ast_channel *), void(*cleanup_ptr)(struct ast_channel *))
 
int ast_is_deferrable_frame (const struct ast_frame *frame)
 Should we keep this frame for later?
 
void ast_moh_cleanup (struct ast_channel *chan)
 Clean up music on hold state on a given channel.
 
int ast_moh_start (struct ast_channel *chan, const char *mclass, const char *interpclass)
 Turn on music on hold on a given channel.
 
void ast_moh_stop (struct ast_channel *chan)
 Turn off music on hold on a given channel.
 
int ast_namedgroups_intersect (struct ast_namedgroups *a, struct ast_namedgroups *b)
 Return TRUE if group a and b contain at least one common groupname.
 
void ast_party_caller_copy (struct ast_party_caller *dest, const struct ast_party_caller *src)
 Copy the source caller information to the destination caller.
 
void ast_party_caller_free (struct ast_party_caller *doomed)
 Destroy the caller party contents.
 
void ast_party_caller_init (struct ast_party_caller *init)
 Initialize the given caller structure.
 
void ast_party_caller_set (struct ast_party_caller *dest, const struct ast_party_caller *src, const struct ast_set_party_caller *update)
 Set the caller information based on another caller source.
 
void ast_party_caller_set_init (struct ast_party_caller *init, const struct ast_party_caller *guide)
 Initialize the given caller structure using the given guide for a set update operation.
 
void ast_party_connected_line_collect_caller (struct ast_party_connected_line *connected, struct ast_party_caller *caller)
 Collect the caller party information into a connected line structure.
 
void ast_party_connected_line_copy (struct ast_party_connected_line *dest, const struct ast_party_connected_line *src)
 Copy the source connected line information to the destination connected line.
 
void ast_party_connected_line_free (struct ast_party_connected_line *doomed)
 Destroy the connected line information contents.
 
void ast_party_connected_line_init (struct ast_party_connected_line *init)
 Initialize the given connected line structure.
 
void ast_party_connected_line_set (struct ast_party_connected_line *dest, const struct ast_party_connected_line *src, const struct ast_set_party_connected_line *update)
 Set the connected line information based on another connected line source.
 
void ast_party_connected_line_set_init (struct ast_party_connected_line *init, const struct ast_party_connected_line *guide)
 Initialize the given connected line structure using the given guide for a set update operation.
 
void ast_party_dialed_copy (struct ast_party_dialed *dest, const struct ast_party_dialed *src)
 Copy the source dialed party information to the destination dialed party.
 
void ast_party_dialed_free (struct ast_party_dialed *doomed)
 Destroy the dialed party contents.
 
void ast_party_dialed_init (struct ast_party_dialed *init)
 Initialize the given dialed structure.
 
void ast_party_dialed_set (struct ast_party_dialed *dest, const struct ast_party_dialed *src)
 Set the dialed information based on another dialed source.
 
void ast_party_dialed_set_init (struct ast_party_dialed *init, const struct ast_party_dialed *guide)
 Initialize the given dialed structure using the given guide for a set update operation.
 
void ast_party_id_copy (struct ast_party_id *dest, const struct ast_party_id *src)
 Copy the source party id information to the destination party id.
 
void ast_party_id_free (struct ast_party_id *doomed)
 Destroy the party id contents.
 
void ast_party_id_init (struct ast_party_id *init)
 Initialize the given party id structure.
 
void ast_party_id_invalidate (struct ast_party_id *id)
 Invalidate all components of the given party id.
 
struct ast_party_id ast_party_id_merge (struct ast_party_id *base, struct ast_party_id *overlay)
 Merge a given party id into another given party id.
 
void ast_party_id_merge_copy (struct ast_party_id *dest, struct ast_party_id *base, struct ast_party_id *overlay)
 Copy a merge of a given party id into another given party id to a given destination party id.
 
int ast_party_id_presentation (const struct ast_party_id *id)
 Determine the overall presentation value for the given party.
 
void ast_party_id_reset (struct ast_party_id *id)
 Destroy and initialize the given party id structure.
 
void ast_party_id_set (struct ast_party_id *dest, const struct ast_party_id *src, const struct ast_set_party_id *update)
 Set the source party id information into the destination party id.
 
void ast_party_id_set_init (struct ast_party_id *init, const struct ast_party_id *guide)
 Initialize the given party id structure using the given guide for a set update operation.
 
void ast_party_name_copy (struct ast_party_name *dest, const struct ast_party_name *src)
 Copy the source party name information to the destination party name.
 
void ast_party_name_free (struct ast_party_name *doomed)
 Destroy the party name contents.
 
void ast_party_name_init (struct ast_party_name *init)
 Initialize the given name structure.
 
void ast_party_name_set (struct ast_party_name *dest, const struct ast_party_name *src)
 Set the source party name information into the destination party name.
 
void ast_party_name_set_init (struct ast_party_name *init, const struct ast_party_name *guide)
 Initialize the given party name structure using the given guide for a set update operation.
 
void ast_party_number_copy (struct ast_party_number *dest, const struct ast_party_number *src)
 Copy the source party number information to the destination party number.
 
void ast_party_number_free (struct ast_party_number *doomed)
 Destroy the party number contents.
 
void ast_party_number_init (struct ast_party_number *init)
 Initialize the given number structure.
 
void ast_party_number_set (struct ast_party_number *dest, const struct ast_party_number *src)
 Set the source party number information into the destination party number.
 
void ast_party_number_set_init (struct ast_party_number *init, const struct ast_party_number *guide)
 Initialize the given party number structure using the given guide for a set update operation.
 
void ast_party_redirecting_copy (struct ast_party_redirecting *dest, const struct ast_party_redirecting *src)
 Copy the source redirecting information to the destination redirecting.
 
void ast_party_redirecting_free (struct ast_party_redirecting *doomed)
 Destroy the redirecting information contents.
 
void ast_party_redirecting_init (struct ast_party_redirecting *init)
 Initialize the given redirecting structure.
 
void ast_party_redirecting_reason_copy (struct ast_party_redirecting_reason *dest, const struct ast_party_redirecting_reason *src)
 Copy the source redirecting reason information to the destination redirecting reason.
 
void ast_party_redirecting_reason_free (struct ast_party_redirecting_reason *doomed)
 Destroy the redirecting reason contents.
 
void ast_party_redirecting_reason_init (struct ast_party_redirecting_reason *init)
 Initialize the given redirecting reason structure.
 
void ast_party_redirecting_reason_set (struct ast_party_redirecting_reason *dest, const struct ast_party_redirecting_reason *src)
 Set the redirecting reason information based on another redirecting reason source.
 
void ast_party_redirecting_reason_set_init (struct ast_party_redirecting_reason *init, const struct ast_party_redirecting_reason *guide)
 Initialize the given redirecting reason structure using the given guide for a set update operation.
 
void ast_party_redirecting_set (struct ast_party_redirecting *dest, const struct ast_party_redirecting *src, const struct ast_set_party_redirecting *update)
 Set the redirecting information based on another redirecting source.
 
void ast_party_redirecting_set_init (struct ast_party_redirecting *init, const struct ast_party_redirecting *guide)
 Initialize the given redirecting id structure using the given guide for a set update operation.
 
void ast_party_subaddress_copy (struct ast_party_subaddress *dest, const struct ast_party_subaddress *src)
 Copy the source party subaddress information to the destination party subaddress.
 
void ast_party_subaddress_free (struct ast_party_subaddress *doomed)
 Destroy the party subaddress contents.
 
void ast_party_subaddress_init (struct ast_party_subaddress *init)
 Initialize the given subaddress structure.
 
void ast_party_subaddress_set (struct ast_party_subaddress *dest, const struct ast_party_subaddress *src)
 Set the source party subaddress information into the destination party subaddress.
 
void ast_party_subaddress_set_init (struct ast_party_subaddress *init, const struct ast_party_subaddress *guide)
 Initialize the given party subaddress structure using the given guide for a set update operation.
 
int ast_pre_call (struct ast_channel *chan, const char *sub_args)
 Execute a Gosub call on the channel before a call is placed.
 
char * ast_print_group (char *buf, int buflen, ast_group_t group)
 Print call group and pickup group —.
 
char * ast_print_namedgroups (struct ast_str **buf, struct ast_namedgroups *group)
 Print named call groups and named pickup groups.
 
int ast_prod (struct ast_channel *chan)
 Send empty audio to prime a channel driver.
 
int ast_queue_answer (struct ast_channel *chan, const struct ast_stream_topology *topology)
 Queue an ANSWER control frame with topology.
 
int ast_queue_control (struct ast_channel *chan, enum ast_control_frame_type control)
 Queue a control frame.
 
int ast_queue_control_data (struct ast_channel *chan, enum ast_control_frame_type control, const void *data, size_t datalen)
 Queue a control frame with payload.
 
int ast_queue_frame (struct ast_channel *chan, struct ast_frame *fin)
 Queue one or more frames to a channel's frame queue.
 
int ast_queue_frame_head (struct ast_channel *chan, struct ast_frame *fin)
 Queue one or more frames to the head of a channel's frame queue.
 
int ast_queue_hangup (struct ast_channel *chan)
 Queue a hangup frame for channel.
 
int ast_queue_hangup_with_cause (struct ast_channel *chan, int cause)
 Queue a hangup frame for channel.
 
int ast_queue_hold (struct ast_channel *chan, const char *musicclass)
 Queue a hold frame.
 
int ast_queue_unhold (struct ast_channel *chan)
 Queue an unhold frame.
 
int ast_raw_answer (struct ast_channel *chan)
 Answer a channel.
 
int ast_raw_answer_with_stream_topology (struct ast_channel *chan, struct ast_stream_topology *topology)
 Answer a channel passing in a stream topology.
 
struct ast_frameast_read (struct ast_channel *chan)
 Reads a frame.
 
static void ast_read_generator_actions (struct ast_channel *chan, struct ast_frame *f)
 
struct ast_frameast_read_noaudio (struct ast_channel *chan)
 Reads a frame, returning AST_FRAME_NULL frame if audio.
 
struct ast_frameast_read_stream (struct ast_channel *chan)
 Reads a frame, but does not filter to just the default streams.
 
struct ast_frameast_read_stream_noaudio (struct ast_channel *chan)
 Reads a frame, but does not filter to just the default streams, returning AST_FRAME_NULL frame if audio.
 
int ast_readstring (struct ast_channel *c, char *s, int len, int timeout, int ftimeout, char *enders)
 Reads multiple digits.
 
int ast_readstring_full (struct ast_channel *c, char *s, int len, int timeout, int ftimeout, char *enders, int audiofd, int ctrlfd)
 
int ast_recvchar (struct ast_channel *chan, int timeout)
 Receives a text character from a channel.
 
char * ast_recvtext (struct ast_channel *chan, int timeout)
 Receives a text string from a channel Read a string of text from a channel.
 
int ast_redirecting_build_data (unsigned char *data, size_t datalen, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update)
 Build the redirecting id data frame.
 
int ast_redirecting_parse_data (const unsigned char *data, size_t datalen, struct ast_party_redirecting *redirecting)
 Parse redirecting indication frame data.
 
struct ast_namedgroups * ast_ref_namedgroups (struct ast_namedgroups *groups)
 
struct ast_channelast_request (const char *type, struct ast_format_cap *request_cap, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *addr, int *cause)
 Requests a channel.
 
struct ast_channelast_request_and_dial (const char *type, struct ast_format_cap *cap, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *addr, int timeout, int *outstate, const char *cidnum, const char *cidname)
 Request a channel of a given type, with data as optional information used by the low level module and attempt to place a call on it.
 
struct ast_channelast_request_with_stream_topology (const char *type, struct ast_stream_topology *topology, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *addr, int *cause)
 Requests a channel (specifying stream topology)
 
int ast_safe_sleep (struct ast_channel *chan, int ms)
 Wait, look for hangups.
 
int ast_safe_sleep_conditional (struct ast_channel *chan, int timeout_ms, int(*cond)(void *), void *data)
 Wait for a specified amount of time, looking for hangups and a condition argument.
 
int ast_safe_sleep_without_silence (struct ast_channel *chan, int ms)
 Wait for a specified amount of time, looking for hangups, and do not generate silence.
 
int ast_say_character_str (struct ast_channel *chan, const char *str, const char *ints, const char *lang, enum ast_say_case_sensitivity sensitivity)
 function to pronounce character and phonetic strings
 
int ast_say_digit_str (struct ast_channel *chan, const char *str, const char *ints, const char *lang)
 says digits of a string
 
int ast_say_digits (struct ast_channel *chan, int num, const char *ints, const char *lang)
 says digits
 
int ast_say_digits_full (struct ast_channel *chan, int num, const char *ints, const char *lang, int audiofd, int ctrlfd)
 Same as ast_say_digits() with audiofd for received audio and returns 1 on ctrlfd being readable.
 
int ast_say_enumeration (struct ast_channel *chan, int num, const char *ints, const char *language, const char *options)
 says an enumeration
 
int ast_say_money_str (struct ast_channel *chan, const char *str, const char *ints, const char *lang)
 function to pronounce monetary amounts
 
int ast_say_number (struct ast_channel *chan, int num, const char *ints, const char *language, const char *options)
 says a number
 
int ast_say_ordinal (struct ast_channel *chan, int num, const char *ints, const char *language, const char *options)
 says an ordinal number
 
int ast_say_phonetic_str (struct ast_channel *chan, const char *str, const char *ints, const char *lang)
 
int ast_senddigit (struct ast_channel *chan, char digit, unsigned int duration)
 Send a DTMF digit to a channel.
 
int ast_senddigit_begin (struct ast_channel *chan, char digit)
 Send a DTMF digit to a channel.
 
int ast_senddigit_end (struct ast_channel *chan, char digit, unsigned int duration)
 Send a DTMF digit to a channel.
 
int ast_senddigit_external (struct ast_channel *chan, char digit, unsigned int duration)
 Send a DTMF digit to a channel from an external thread.
 
int ast_senddigit_mf (struct ast_channel *chan, char digit, unsigned int duration, unsigned int durationkp, unsigned int durationst, int is_external)
 Send an MF digit to a channel.
 
int ast_senddigit_mf_begin (struct ast_channel *chan, char digit)
 Send an MF digit to a channel.
 
int ast_senddigit_mf_end (struct ast_channel *chan)
 End sending an MF digit to a channel.
 
int ast_sendtext (struct ast_channel *chan, const char *text)
 Sends text to a channel.
 
int ast_sendtext_data (struct ast_channel *chan, struct ast_msg_data *msg)
 Sends text to a channel in an ast_msg_data structure wrapper with ast_sendtext as fallback.
 
void ast_set_callerid (struct ast_channel *chan, const char *cid_num, const char *cid_name, const char *cid_ani)
 Set caller ID number, name and ANI and generate AMI event.
 
void ast_set_hangupsource (struct ast_channel *chan, const char *source, int force)
 Set the source of the hangup in this channel and it's bridge.
 
void ast_set_party_id_all (struct ast_set_party_id *update_id)
 Set the update marker to update all information of a corresponding party id.
 
int ast_set_read_format (struct ast_channel *chan, struct ast_format *format)
 Sets read format on channel chan.
 
int ast_set_read_format_from_cap (struct ast_channel *chan, struct ast_format_cap *cap)
 Sets read format on channel chan from capabilities Set read format for channel to whichever component of "format" is best.
 
int ast_set_read_format_path (struct ast_channel *chan, struct ast_format *raw_format, struct ast_format *core_format)
 Set specific read path on channel.
 
void ast_set_variables (struct ast_channel *chan, struct ast_variable *vars)
 adds a list of channel variables to a channel
 
int ast_set_write_format (struct ast_channel *chan, struct ast_format *format)
 Sets write format on channel chan.
 
int ast_set_write_format_from_cap (struct ast_channel *chan, struct ast_format_cap *cap)
 Sets write format on channel chan Set write format for channel to whichever component of "format" is best.
 
int ast_set_write_format_interleaved_stereo (struct ast_channel *chan, struct ast_format *format)
 Sets write format for a channel. All internal data will than be handled in an interleaved format. (needed by binaural opus)
 
int ast_set_write_format_path (struct ast_channel *chan, struct ast_format *core_format, struct ast_format *raw_format)
 Set specific write path on channel.
 
int ast_setstate (struct ast_channel *chan, enum ast_channel_state state)
 Change the state of a channel.
 
int ast_settimeout (struct ast_channel *c, unsigned int rate, int(*func)(const void *data), void *data)
 Enable or disable timer ticks for a channel.
 
int ast_settimeout_full (struct ast_channel *c, unsigned int rate, int(*func)(const void *data), void *data, unsigned int is_ao2_obj)
 
int ast_softhangup (struct ast_channel *chan, int cause)
 Softly hangup a channel, lock.
 
void ast_softhangup_all (void)
 Soft hangup all active channels.
 
int ast_softhangup_nolock (struct ast_channel *chan, int cause)
 Softly hangup a channel, don't lock.
 
const char * ast_state2str (enum ast_channel_state state)
 Gives the string form of a given channel state.
 
int ast_str2cause (const char *name)
 Convert a symbolic hangup cause to number.
 
 AST_THREADSTORAGE_CUSTOM_SCOPE (state2str_threadbuf, NULL, ast_free_ptr, static)
 
 AST_THREADSTORAGE_RAW (in_intercept_routine)
 
int ast_tonepair (struct ast_channel *chan, int freq1, int freq2, int duration, int vol)
 
int ast_tonepair_start (struct ast_channel *chan, int freq1, int freq2, int duration, int vol)
 
void ast_tonepair_stop (struct ast_channel *chan)
 
int ast_transfer (struct ast_channel *chan, char *dest)
 Transfer a call to dest, if the channel supports transfer.
 
int ast_transfer_protocol (struct ast_channel *chan, char *dest, int *protocol)
 Transfer a call to dest, if the channel supports transfer.
 
char * ast_transfercapability2str (int transfercapability)
 Gives the string form of a given transfer capability.
 
int ast_undestroyed_channels (void)
 
void ast_uninstall_music_functions (void)
 
struct ast_namedgroups * ast_unref_namedgroups (struct ast_namedgroups *groups)
 
int ast_waitfor (struct ast_channel *c, int ms)
 Wait for input on a channel.
 
struct ast_channelast_waitfor_n (struct ast_channel **c, int n, int *ms)
 Waits for input on a group of channels Wait for input on an array of channels for a given # of milliseconds.
 
int ast_waitfor_n_fd (int *fds, int n, int *ms, int *exception)
 Wait for x amount of time on a file descriptor to have input.

 
struct ast_channelast_waitfor_nandfds (struct ast_channel **c, int n, int *fds, int nfds, int *exception, int *outfd, int *ms)
 Wait for x amount of time on a file descriptor to have input.

 
int ast_waitfordigit (struct ast_channel *c, int ms)
 Waits for a digit.
 
int ast_waitfordigit_full (struct ast_channel *c, int timeout_ms, const char *breakon, int audiofd, int cmdfd)
 Wait for a digit Same as ast_waitfordigit() with audio fd for outputting read audio and ctrlfd to monitor for reading.
 
int ast_write (struct ast_channel *chan, struct ast_frame *fr)
 Write a frame to a channel This function writes the given frame to the indicated channel.
 
int ast_write_stream (struct ast_channel *chan, int stream_num, struct ast_frame *fr)
 Write a frame to a stream This function writes the given frame to the indicated stream on the channel.
 
int ast_write_video (struct ast_channel *chan, struct ast_frame *fr)
 Write video frame to a channel This function writes the given frame to the indicated channel.
 
static int calc_monitor_jump (int samples, int sample_rate, int seek_rate)
 calculates the number of samples to jump forward with in a monitor stream.
 
static void call_forward_inherit (struct ast_channel *new_chan, struct ast_channel *parent, struct ast_channel *orig)
 
static void * channel_cc_params_copy (void *data)
 
static void channel_cc_params_destroy (void *data)
 
static void channel_do_masquerade (struct ast_channel *original, struct ast_channel *clonechan)
 Masquerade a channel.
 
static int channel_feature_hooks_set_full (struct ast_channel *chan, struct ast_bridge_features *features, int replace)
 
static struct varsheadchannel_get_external_vars (struct external_vars *channelvars, struct ast_channel *chan)
 
static int channel_has_external_vars (struct external_vars *channelvars)
 
static void channel_req_accountcodes (struct ast_channel *chan, const struct ast_channel *requestor, enum ast_channel_requestor_relationship relationship, int precious)
 
static void channel_set_external_vars (struct external_vars *channelvars, size_t varc, char **vars)
 
static void channel_set_intercept_mode (int in_intercept_mode)
 
static void channels_shutdown (void)
 
static void clone_variables (struct ast_channel *original, struct ast_channel *clonechan)
 Clone channel variables from 'clone' channel into 'original' channel.
 
static char * complete_channeltypes (struct ast_cli_args *a)
 
static void deactivate_generator_nolock (struct ast_channel *chan)
 
static int deactivate_silence_generator (struct ast_channel *chan)
 
static void destroy_hooks (struct ast_channel *chan)
 
static int do_ids_conflict (const struct ast_assigned_ids *assignedids, int rdlock)
 
static const char * dtmf_direction_to_string (enum DtmfDirection direction)
 
static void features_destroy (void *obj)
 
static void free_external_channelvars (struct external_vars *channelvars)
 
static void free_translation (struct ast_channel *clonechan)
 
static int generator_force (const void *data)
 
static void generator_write_format_change (struct ast_channel *chan)
 
static void handle_cause (int cause, int *outstate)
 
static char * handle_cli_core_show_channeltype (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 Show details about a channel driver - CLI command.
 
static char * handle_cli_core_show_channeltypes (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 Show channel types - CLI command.
 
static int indicate_connected_line (struct ast_channel *chan, const void *data, size_t datalen)
 
static int indicate_data_internal (struct ast_channel *chan, int _condition, const void *data, size_t datalen)
 
static int indicate_redirecting (struct ast_channel *chan, const void *data, size_t datalen)
 
int internal_channel_set_current_storage_driver (const char *driver_name)
 
static int attribute_const is_visible_indication (enum ast_control_frame_type condition)
 
static struct ast_framekill_exception (struct ast_channel *chan)
 
static int kill_fixup (struct ast_channel *oldchan, struct ast_channel *newchan)
 
static int kill_hangup (struct ast_channel *chan)
 
static struct ast_framekill_read (struct ast_channel *chan)
 
static int kill_write (struct ast_channel *chan, struct ast_frame *frame)
 
static void moh_cleanup (struct ast_channel *chan)
 
static int namedgroup_cmp_cb (void *obj, void *arg, int flags)
 Comparison function used for named group container.
 
static int namedgroup_hash_cb (const void *obj, const int flags)
 Hashing function used for named group container.
 
static int namedgroup_match (void *obj, void *arg, int flags)
 
static int party_id_build_data (unsigned char *data, size_t datalen, const struct ast_party_id *id, const char *label, const struct ast_party_id_ies *ies, const struct ast_set_party_id *update)
 
static int party_name_build_data (unsigned char *data, size_t datalen, const struct ast_party_name *name, const char *label, const struct ast_party_name_ies *ies)
 
static int party_number_build_data (unsigned char *data, size_t datalen, const struct ast_party_number *number, const char *label, const struct ast_party_number_ies *ies)
 
static int party_subaddress_build_data (unsigned char *data, size_t datalen, const struct ast_party_subaddress *subaddress, const char *label, const struct ast_party_subaddress_ies *ies)
 
static void plc_ds_destroy (void *data)
 
static void queue_dtmf_readq (struct ast_channel *chan, struct ast_frame *f)
 
static int redirecting_reason_build_data (unsigned char *data, size_t datalen, const struct ast_party_redirecting_reason *reason, const char *label, const struct ast_party_redirecting_reason_ies *ies)
 
static struct ast_channelrequest_channel (const char *type, struct ast_format_cap *request_cap, struct ast_stream_topology *topology, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *addr, int *cause)
 
static int safe_sleep_conditional (struct ast_channel *chan, int timeout_ms, int(*cond)(void *), void *data, unsigned int generate_silence)
 Wait, look for hangups and condition arg.
 
static void send_dtmf_begin_event (struct ast_channel *chan, enum DtmfDirection direction, const char digit)
 
static void send_dtmf_end_event (struct ast_channel *chan, enum DtmfDirection direction, const char digit, long duration_ms)
 
static void send_flash_event (struct ast_channel *chan)
 
static void send_wink_event (struct ast_channel *chan)
 
static void set_channel_answer_time (struct ast_channel *chan)
 
static int set_format (struct ast_channel *chan, struct ast_format_cap *cap_set, const int direction, int interleaved_stereo)
 
static int set_security_requirements (const struct ast_channel *requestor, struct ast_channel *out)
 
static int should_skip_dtmf (struct ast_channel *chan)
 Determine whether or not we should ignore DTMF in the readq.
 
static int should_trigger_dtmf_emulating (struct ast_channel *chan)
 Determine whether or not we have to trigger dtmf emulating using 50 fps timer events especially when no voice frames are received during dtmf processing (direct media or muted sender case using SIP INFO)
 
static void * silence_generator_alloc (struct ast_channel *chan, void *data)
 
static int silence_generator_generate (struct ast_channel *chan, void *data, int len, int samples)
 
static void silence_generator_release (struct ast_channel *chan, void *data)
 
static void suppress_datastore_destroy_cb (void *data)
 
static void suppress_framehook_destroy_cb (void *data)
 
static struct ast_framesuppress_framehook_event_cb (struct ast_channel *chan, struct ast_frame *frame, enum ast_framehook_event event, void *data)
 
static void suppress_framehook_fixup_cb (void *data, int framehook_id, struct ast_channel *old_chan, struct ast_channel *new_chan)
 
static const struct ast_datastore_infosuppress_get_datastore_information (enum ast_frame_type frametype)
 
static int tech_write (struct ast_channel *chan, struct ast_stream *stream, struct ast_stream *default_stream, struct ast_frame *frame)
 
static void * tonepair_alloc (struct ast_channel *chan, void *params)
 
static int tonepair_generator (struct ast_channel *chan, void *data, int len, int samples)
 
static void tonepair_release (struct ast_channel *chan, void *params)
 
static void varshead_dtor (void *obj)
 Destructor for lists of variables.
 

Variables

static struct external_vars ami_vars
 
static struct external_vars ari_vars
 
const struct ast_channel_tech ast_kill_tech
 Kill the channel channel driver technology descriptor.
 
static void(* ast_moh_cleanup_ptr )(struct ast_channel *) = NULL
 
static int(* ast_moh_start_ptr )(struct ast_channel *, const char *, const char *) = NULL
 
static void(* ast_moh_stop_ptr )(struct ast_channel *) = NULL
 
static struct backends backends = AST_RWLIST_HEAD_INIT_VALUE
 
static const struct ast_datastore_info bridge_features_info
 
static const struct causes_map causes []
 
static const struct ast_datastore_info cc_channel_datastore_info
 
static int chancount
 
static ast_mutex_t channel_move_lock = AST_MUTEX_INIT_VALUE
 
static struct ast_cli_entry cli_channel []
 
unsigned long global_fin
 
unsigned long global_fout
 
static const struct ast_channel_tech null_tech
 
static const struct ast_datastore_info plc_ds_info
 
static const struct set_format_access set_format_access_read
 
static const struct set_format_access set_format_access_write
 
static struct ast_generator silence_generator
 
static const struct ast_datastore_info suppress_datastore_voice
 
static const struct ast_channel_tech surrogate_tech
 Channel technology used to extract a channel from a running application. The channel created with this technology will be immediately hung up - most external applications won't ever want to see this.
 
static struct ast_generator tonepair
 

Detailed Description

Channel Management.

Author
Mark Spencer marks.nosp@m.ter@.nosp@m.digiu.nosp@m.m.co.nosp@m.m

Definition in file channel.c.

Macro Definition Documentation

◆ AST_DEFAULT_EMULATE_DTMF_DURATION

#define AST_DEFAULT_EMULATE_DTMF_DURATION   100

Default amount of time to use when emulating a DTMF digit as a begin and end 100ms

Definition at line 106 of file channel.c.

◆ AST_MIN_DTMF_GAP

#define AST_MIN_DTMF_GAP   45

Minimum amount of time between the end of the last digit and the beginning of a new one - 45ms

Definition at line 116 of file channel.c.

◆ DEFAULT_AMA_FLAGS

#define DEFAULT_AMA_FLAGS   AST_AMA_DOCUMENTATION

Definition at line 112 of file channel.c.

◆ DEFAULT_EMULATE_MF_DURATION

#define DEFAULT_EMULATE_MF_DURATION   55

Default amount of time to use when emulating an MF digit as a begin and end 55ms

Definition at line 110 of file channel.c.

◆ FORMAT

#define FORMAT   "%-15.15s %-40.40s %-13.13s %-13.13s %-13.13s %-13.13s\n"

◆ STATE2STR_BUFSIZE

#define STATE2STR_BUFSIZE   32

Definition at line 102 of file channel.c.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Element identifiers for connected line indication frame data.

Note
Only add to the end of this enum.
Enumerator
AST_CONNECTED_LINE_NUMBER 
AST_CONNECTED_LINE_NAME 
AST_CONNECTED_LINE_NUMBER_PLAN 
AST_CONNECTED_LINE_ID_PRESENTATION 
AST_CONNECTED_LINE_SOURCE 
AST_CONNECTED_LINE_SUBADDRESS 
AST_CONNECTED_LINE_SUBADDRESS_TYPE 
AST_CONNECTED_LINE_SUBADDRESS_ODD_EVEN 
AST_CONNECTED_LINE_SUBADDRESS_VALID 
AST_CONNECTED_LINE_TAG 
AST_CONNECTED_LINE_VERSION 
AST_CONNECTED_LINE_NAME_VALID 
AST_CONNECTED_LINE_NAME_CHAR_SET 
AST_CONNECTED_LINE_NAME_PRESENTATION 
AST_CONNECTED_LINE_NUMBER_VALID 
AST_CONNECTED_LINE_NUMBER_PRESENTATION 
AST_CONNECTED_LINE_PRIV_NUMBER 
AST_CONNECTED_LINE_PRIV_NUMBER_PLAN 
AST_CONNECTED_LINE_PRIV_NUMBER_VALID 
AST_CONNECTED_LINE_PRIV_NUMBER_PRESENTATION 
AST_CONNECTED_LINE_PRIV_NAME 
AST_CONNECTED_LINE_PRIV_NAME_VALID 
AST_CONNECTED_LINE_PRIV_NAME_CHAR_SET 
AST_CONNECTED_LINE_PRIV_NAME_PRESENTATION 
AST_CONNECTED_LINE_PRIV_SUBADDRESS 
AST_CONNECTED_LINE_PRIV_SUBADDRESS_TYPE 
AST_CONNECTED_LINE_PRIV_SUBADDRESS_ODD_EVEN 
AST_CONNECTED_LINE_PRIV_SUBADDRESS_VALID 
AST_CONNECTED_LINE_PRIV_TAG 

Definition at line 8767 of file channel.c.

8767 {
8771 AST_CONNECTED_LINE_ID_PRESENTATION,/* Combined number and name presentation. */
8779 /*
8780 * No more party id combined number and name presentation values
8781 * need to be created.
8782 */
8801};
@ AST_CONNECTED_LINE_NUMBER_VALID
Definition channel.c:8786
@ AST_CONNECTED_LINE_SOURCE
Definition channel.c:8772
@ AST_CONNECTED_LINE_PRIV_SUBADDRESS_VALID
Definition channel.c:8799
@ AST_CONNECTED_LINE_PRIV_SUBADDRESS_ODD_EVEN
Definition channel.c:8798
@ AST_CONNECTED_LINE_PRIV_NAME_VALID
Definition channel.c:8793
@ AST_CONNECTED_LINE_PRIV_SUBADDRESS_TYPE
Definition channel.c:8797
@ AST_CONNECTED_LINE_PRIV_NUMBER_PRESENTATION
Definition channel.c:8791
@ AST_CONNECTED_LINE_NAME_CHAR_SET
Definition channel.c:8784
@ AST_CONNECTED_LINE_SUBADDRESS_VALID
Definition channel.c:8776
@ AST_CONNECTED_LINE_SUBADDRESS_ODD_EVEN
Definition channel.c:8775
@ AST_CONNECTED_LINE_SUBADDRESS
Definition channel.c:8773
@ AST_CONNECTED_LINE_PRIV_NUMBER_PLAN
Definition channel.c:8789
@ AST_CONNECTED_LINE_NUMBER
Definition channel.c:8768
@ AST_CONNECTED_LINE_ID_PRESENTATION
Definition channel.c:8771
@ AST_CONNECTED_LINE_PRIV_NAME_PRESENTATION
Definition channel.c:8795
@ AST_CONNECTED_LINE_PRIV_NAME
Definition channel.c:8792
@ AST_CONNECTED_LINE_TAG
Definition channel.c:8777
@ AST_CONNECTED_LINE_PRIV_NUMBER_VALID
Definition channel.c:8790
@ AST_CONNECTED_LINE_NUMBER_PRESENTATION
Definition channel.c:8787
@ AST_CONNECTED_LINE_PRIV_NAME_CHAR_SET
Definition channel.c:8794
@ AST_CONNECTED_LINE_NAME
Definition channel.c:8769
@ AST_CONNECTED_LINE_NAME_PRESENTATION
Definition channel.c:8785
@ AST_CONNECTED_LINE_SUBADDRESS_TYPE
Definition channel.c:8774
@ AST_CONNECTED_LINE_PRIV_SUBADDRESS
Definition channel.c:8796
@ AST_CONNECTED_LINE_PRIV_TAG
Definition channel.c:8800
@ AST_CONNECTED_LINE_NAME_VALID
Definition channel.c:8783
@ AST_CONNECTED_LINE_PRIV_NUMBER
Definition channel.c:8788
@ AST_CONNECTED_LINE_NUMBER_PLAN
Definition channel.c:8770
@ AST_CONNECTED_LINE_VERSION
Definition channel.c:8778

◆ anonymous enum

anonymous enum

Element identifiers for redirecting indication frame data.

Note
Only add to the end of this enum.
Enumerator
AST_REDIRECTING_FROM_NUMBER 
AST_REDIRECTING_FROM_NAME 
AST_REDIRECTING_FROM_NUMBER_PLAN 
AST_REDIRECTING_FROM_ID_PRESENTATION 
AST_REDIRECTING_TO_NUMBER 
AST_REDIRECTING_TO_NAME 
AST_REDIRECTING_TO_NUMBER_PLAN 
AST_REDIRECTING_TO_ID_PRESENTATION 
AST_REDIRECTING_REASON_CODE 
AST_REDIRECTING_COUNT 
AST_REDIRECTING_FROM_SUBADDRESS 
AST_REDIRECTING_FROM_SUBADDRESS_TYPE 
AST_REDIRECTING_FROM_SUBADDRESS_ODD_EVEN 
AST_REDIRECTING_FROM_SUBADDRESS_VALID 
AST_REDIRECTING_TO_SUBADDRESS 
AST_REDIRECTING_TO_SUBADDRESS_TYPE 
AST_REDIRECTING_TO_SUBADDRESS_ODD_EVEN 
AST_REDIRECTING_TO_SUBADDRESS_VALID 
AST_REDIRECTING_FROM_TAG 
AST_REDIRECTING_TO_TAG 
AST_REDIRECTING_VERSION 
AST_REDIRECTING_FROM_NAME_VALID 
AST_REDIRECTING_FROM_NAME_CHAR_SET 
AST_REDIRECTING_FROM_NAME_PRESENTATION 
AST_REDIRECTING_FROM_NUMBER_VALID 
AST_REDIRECTING_FROM_NUMBER_PRESENTATION 
AST_REDIRECTING_TO_NAME_VALID 
AST_REDIRECTING_TO_NAME_CHAR_SET 
AST_REDIRECTING_TO_NAME_PRESENTATION 
AST_REDIRECTING_TO_NUMBER_VALID 
AST_REDIRECTING_TO_NUMBER_PRESENTATION 
AST_REDIRECTING_ORIG_NUMBER 
AST_REDIRECTING_ORIG_NUMBER_VALID 
AST_REDIRECTING_ORIG_NUMBER_PLAN 
AST_REDIRECTING_ORIG_NUMBER_PRESENTATION 
AST_REDIRECTING_ORIG_NAME 
AST_REDIRECTING_ORIG_NAME_VALID 
AST_REDIRECTING_ORIG_NAME_CHAR_SET 
AST_REDIRECTING_ORIG_NAME_PRESENTATION 
AST_REDIRECTING_ORIG_SUBADDRESS 
AST_REDIRECTING_ORIG_SUBADDRESS_TYPE 
AST_REDIRECTING_ORIG_SUBADDRESS_ODD_EVEN 
AST_REDIRECTING_ORIG_SUBADDRESS_VALID 
AST_REDIRECTING_ORIG_TAG 
AST_REDIRECTING_ORIG_REASON_CODE 
AST_REDIRECTING_PRIV_TO_NUMBER 
AST_REDIRECTING_PRIV_TO_NUMBER_PLAN 
AST_REDIRECTING_PRIV_TO_NUMBER_VALID 
AST_REDIRECTING_PRIV_TO_NUMBER_PRESENTATION 
AST_REDIRECTING_PRIV_TO_NAME 
AST_REDIRECTING_PRIV_TO_NAME_VALID 
AST_REDIRECTING_PRIV_TO_NAME_CHAR_SET 
AST_REDIRECTING_PRIV_TO_NAME_PRESENTATION 
AST_REDIRECTING_PRIV_TO_SUBADDRESS 
AST_REDIRECTING_PRIV_TO_SUBADDRESS_TYPE 
AST_REDIRECTING_PRIV_TO_SUBADDRESS_ODD_EVEN 
AST_REDIRECTING_PRIV_TO_SUBADDRESS_VALID 
AST_REDIRECTING_PRIV_TO_TAG 
AST_REDIRECTING_PRIV_FROM_NUMBER 
AST_REDIRECTING_PRIV_FROM_NUMBER_PLAN 
AST_REDIRECTING_PRIV_FROM_NUMBER_VALID 
AST_REDIRECTING_PRIV_FROM_NUMBER_PRESENTATION 
AST_REDIRECTING_PRIV_FROM_NAME 
AST_REDIRECTING_PRIV_FROM_NAME_VALID 
AST_REDIRECTING_PRIV_FROM_NAME_CHAR_SET 
AST_REDIRECTING_PRIV_FROM_NAME_PRESENTATION 
AST_REDIRECTING_PRIV_FROM_SUBADDRESS 
AST_REDIRECTING_PRIV_FROM_SUBADDRESS_TYPE 
AST_REDIRECTING_PRIV_FROM_SUBADDRESS_ODD_EVEN 
AST_REDIRECTING_PRIV_FROM_SUBADDRESS_VALID 
AST_REDIRECTING_PRIV_FROM_TAG 
AST_REDIRECTING_PRIV_ORIG_NUMBER 
AST_REDIRECTING_PRIV_ORIG_NUMBER_VALID 
AST_REDIRECTING_PRIV_ORIG_NUMBER_PLAN 
AST_REDIRECTING_PRIV_ORIG_NUMBER_PRESENTATION 
AST_REDIRECTING_PRIV_ORIG_NAME 
AST_REDIRECTING_PRIV_ORIG_NAME_VALID 
AST_REDIRECTING_PRIV_ORIG_NAME_CHAR_SET 
AST_REDIRECTING_PRIV_ORIG_NAME_PRESENTATION 
AST_REDIRECTING_PRIV_ORIG_SUBADDRESS 
AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_TYPE 
AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_ODD_EVEN 
AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_VALID 
AST_REDIRECTING_PRIV_ORIG_TAG 
AST_REDIRECTING_REASON_STR 
AST_REDIRECTING_ORIG_REASON_STR 

Definition at line 9243 of file channel.c.

9243 {
9247 AST_REDIRECTING_FROM_ID_PRESENTATION,/* Combined number and name presentation. */
9251 AST_REDIRECTING_TO_ID_PRESENTATION,/* Combined number and name presentation. */
9265 /*
9266 * No more party id combined number and name presentation values
9267 * need to be created.
9268 */
9334};
@ AST_REDIRECTING_FROM_NAME_PRESENTATION
Definition channel.c:9271
@ AST_REDIRECTING_TO_NAME
Definition channel.c:9249
@ AST_REDIRECTING_VERSION
Definition channel.c:9264
@ AST_REDIRECTING_PRIV_FROM_NAME_VALID
Definition channel.c:9311
@ AST_REDIRECTING_PRIV_FROM_SUBADDRESS_ODD_EVEN
Definition channel.c:9316
@ AST_REDIRECTING_TO_TAG
Definition channel.c:9263
@ AST_REDIRECTING_FROM_NUMBER_PLAN
Definition channel.c:9246
@ AST_REDIRECTING_PRIV_TO_NAME_VALID
Definition channel.c:9298
@ AST_REDIRECTING_ORIG_TAG
Definition channel.c:9291
@ AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_ODD_EVEN
Definition channel.c:9329
@ AST_REDIRECTING_REASON_CODE
Definition channel.c:9252
@ AST_REDIRECTING_PRIV_TO_NUMBER_VALID
Definition channel.c:9295
@ AST_REDIRECTING_PRIV_TO_NUMBER_PRESENTATION
Definition channel.c:9296
@ AST_REDIRECTING_ORIG_REASON_CODE
Definition channel.c:9292
@ AST_REDIRECTING_TO_NAME_PRESENTATION
Definition channel.c:9276
@ AST_REDIRECTING_PRIV_TO_NAME
Definition channel.c:9297
@ AST_REDIRECTING_PRIV_ORIG_NAME_VALID
Definition channel.c:9324
@ AST_REDIRECTING_ORIG_NUMBER_VALID
Definition channel.c:9280
@ AST_REDIRECTING_FROM_NUMBER_PRESENTATION
Definition channel.c:9273
@ AST_REDIRECTING_ORIG_SUBADDRESS_VALID
Definition channel.c:9290
@ AST_REDIRECTING_FROM_NUMBER_VALID
Definition channel.c:9272
@ AST_REDIRECTING_TO_NAME_VALID
Definition channel.c:9274
@ AST_REDIRECTING_PRIV_FROM_NAME
Definition channel.c:9310
@ AST_REDIRECTING_TO_SUBADDRESS_ODD_EVEN
Definition channel.c:9260
@ AST_REDIRECTING_ORIG_SUBADDRESS_ODD_EVEN
Definition channel.c:9289
@ AST_REDIRECTING_PRIV_FROM_SUBADDRESS_TYPE
Definition channel.c:9315
@ AST_REDIRECTING_PRIV_TO_SUBADDRESS_VALID
Definition channel.c:9304
@ AST_REDIRECTING_PRIV_TO_SUBADDRESS_ODD_EVEN
Definition channel.c:9303
@ AST_REDIRECTING_ORIG_NAME_CHAR_SET
Definition channel.c:9285
@ AST_REDIRECTING_PRIV_FROM_SUBADDRESS
Definition channel.c:9314
@ AST_REDIRECTING_TO_NUMBER_PLAN
Definition channel.c:9250
@ AST_REDIRECTING_PRIV_TO_NUMBER
Definition channel.c:9293
@ AST_REDIRECTING_PRIV_FROM_NUMBER_VALID
Definition channel.c:9308
@ AST_REDIRECTING_ORIG_NAME
Definition channel.c:9283
@ AST_REDIRECTING_ORIG_SUBADDRESS
Definition channel.c:9287
@ AST_REDIRECTING_FROM_TAG
Definition channel.c:9262
@ AST_REDIRECTING_PRIV_ORIG_NUMBER_PLAN
Definition channel.c:9321
@ AST_REDIRECTING_TO_NUMBER
Definition channel.c:9248
@ AST_REDIRECTING_ORIG_SUBADDRESS_TYPE
Definition channel.c:9288
@ AST_REDIRECTING_FROM_NAME_CHAR_SET
Definition channel.c:9270
@ AST_REDIRECTING_PRIV_FROM_TAG
Definition channel.c:9318
@ AST_REDIRECTING_FROM_ID_PRESENTATION
Definition channel.c:9247
@ AST_REDIRECTING_PRIV_FROM_NUMBER
Definition channel.c:9306
@ AST_REDIRECTING_PRIV_TO_NUMBER_PLAN
Definition channel.c:9294
@ AST_REDIRECTING_TO_NUMBER_VALID
Definition channel.c:9277
@ AST_REDIRECTING_FROM_SUBADDRESS_VALID
Definition channel.c:9257
@ AST_REDIRECTING_FROM_NAME_VALID
Definition channel.c:9269
@ AST_REDIRECTING_PRIV_TO_NAME_CHAR_SET
Definition channel.c:9299
@ AST_REDIRECTING_PRIV_ORIG_TAG
Definition channel.c:9331
@ AST_REDIRECTING_FROM_SUBADDRESS_TYPE
Definition channel.c:9255
@ AST_REDIRECTING_PRIV_TO_TAG
Definition channel.c:9305
@ AST_REDIRECTING_COUNT
Definition channel.c:9253
@ AST_REDIRECTING_FROM_SUBADDRESS
Definition channel.c:9254
@ AST_REDIRECTING_PRIV_ORIG_NAME_CHAR_SET
Definition channel.c:9325
@ AST_REDIRECTING_ORIG_NAME_VALID
Definition channel.c:9284
@ AST_REDIRECTING_TO_ID_PRESENTATION
Definition channel.c:9251
@ AST_REDIRECTING_PRIV_FROM_NUMBER_PLAN
Definition channel.c:9307
@ AST_REDIRECTING_PRIV_TO_NAME_PRESENTATION
Definition channel.c:9300
@ AST_REDIRECTING_PRIV_FROM_NUMBER_PRESENTATION
Definition channel.c:9309
@ AST_REDIRECTING_PRIV_FROM_NAME_PRESENTATION
Definition channel.c:9313
@ AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_TYPE
Definition channel.c:9328
@ AST_REDIRECTING_ORIG_REASON_STR
Definition channel.c:9333
@ AST_REDIRECTING_ORIG_NAME_PRESENTATION
Definition channel.c:9286
@ AST_REDIRECTING_PRIV_FROM_NAME_CHAR_SET
Definition channel.c:9312
@ AST_REDIRECTING_ORIG_NUMBER
Definition channel.c:9279
@ AST_REDIRECTING_PRIV_ORIG_NAME
Definition channel.c:9323
@ AST_REDIRECTING_PRIV_TO_SUBADDRESS_TYPE
Definition channel.c:9302
@ AST_REDIRECTING_PRIV_ORIG_NUMBER_VALID
Definition channel.c:9320
@ AST_REDIRECTING_PRIV_ORIG_NUMBER_PRESENTATION
Definition channel.c:9322
@ AST_REDIRECTING_TO_SUBADDRESS_VALID
Definition channel.c:9261
@ AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_VALID
Definition channel.c:9330
@ AST_REDIRECTING_TO_SUBADDRESS_TYPE
Definition channel.c:9259
@ AST_REDIRECTING_REASON_STR
Definition channel.c:9332
@ AST_REDIRECTING_FROM_NAME
Definition channel.c:9245
@ AST_REDIRECTING_PRIV_ORIG_NUMBER
Definition channel.c:9319
@ AST_REDIRECTING_PRIV_FROM_SUBADDRESS_VALID
Definition channel.c:9317
@ AST_REDIRECTING_ORIG_NUMBER_PRESENTATION
Definition channel.c:9282
@ AST_REDIRECTING_PRIV_TO_SUBADDRESS
Definition channel.c:9301
@ AST_REDIRECTING_PRIV_ORIG_NAME_PRESENTATION
Definition channel.c:9326
@ AST_REDIRECTING_TO_NUMBER_PRESENTATION
Definition channel.c:9278
@ AST_REDIRECTING_FROM_NUMBER
Definition channel.c:9244
@ AST_REDIRECTING_ORIG_NUMBER_PLAN
Definition channel.c:9281
@ AST_REDIRECTING_FROM_SUBADDRESS_ODD_EVEN
Definition channel.c:9256
@ AST_REDIRECTING_PRIV_ORIG_SUBADDRESS
Definition channel.c:9327
@ AST_REDIRECTING_TO_SUBADDRESS
Definition channel.c:9258
@ AST_REDIRECTING_TO_NAME_CHAR_SET
Definition channel.c:9275

◆ DtmfDirection

Enumerator
DTMF_RECEIVED 
DTMF_SENT 

Definition at line 3392 of file channel.c.

3392 {
3394 DTMF_SENT
3395};
@ DTMF_SENT
Definition channel.c:3394
@ DTMF_RECEIVED
Definition channel.c:3393

Function Documentation

◆ __ast_answer()

int __ast_answer ( struct ast_channel chan,
unsigned int  delay 
)

Answer a channel, with a selectable delay before returning.

Parameters
chanchannel to answer
delaymaximum amount of time to wait for incoming media

This function answers a channel and handles all necessary call setup functions.

Note
The channel passed does not need to be locked, but is locked by the function when needed.
This function will wait up to 'delay' milliseconds for media to arrive on the channel before returning to the caller, so that the caller can properly assume the channel is 'ready' for media flow. If 'delay' is less than 500, the function will wait up to 500 milliseconds.
Return values
0on success
non-zeroon failure

Definition at line 2729 of file channel.c.

2730{
2731 int res = 0;
2732 enum ast_channel_state old_state;
2733 SCOPE_TRACE(1, "%s\n", ast_channel_name(chan));
2734
2735 old_state = ast_channel_state(chan);
2736 if ((res = ast_raw_answer(chan))) {
2737 return res;
2738 }
2739
2740 switch (old_state) {
2741 case AST_STATE_RINGING:
2742 case AST_STATE_RING:
2743 /* wait for media to start flowing, but don't wait any longer
2744 * than 'delay' or 500 milliseconds, whichever is longer
2745 */
2746 do {
2748 struct ast_frame *cur;
2749 struct ast_frame *new_frame;
2750 int timeout_ms = MAX(delay, 500);
2751 unsigned int done = 0;
2752 struct timeval start;
2753
2755
2756 start = ast_tvnow();
2757 for (;;) {
2758 int ms = ast_remaining_ms(start, timeout_ms);
2759 ms = ast_waitfor(chan, ms);
2760 if (ms < 0) {
2761 ast_log(LOG_WARNING, "Error condition occurred when polling channel %s for a voice frame: %s\n", ast_channel_name(chan), strerror(errno));
2762 res = -1;
2763 break;
2764 }
2765 if (ms == 0) {
2766 ast_debug(2, "Didn't receive a media frame from %s within %u ms of answering. Continuing anyway\n", ast_channel_name(chan), MAX(delay, 500));
2767 break;
2768 }
2769 cur = ast_read(chan);
2770 if (!cur || ((cur->frametype == AST_FRAME_CONTROL) &&
2771 (cur->subclass.integer == AST_CONTROL_HANGUP))) {
2772 if (cur) {
2773 ast_frfree(cur);
2774 }
2775 res = -1;
2776 ast_debug(2, "Hangup of channel %s detected in answer routine\n", ast_channel_name(chan));
2777 break;
2778 }
2779
2780 if ((new_frame = ast_frisolate(cur)) != cur) {
2781 ast_frfree(cur);
2782 }
2783
2785
2786 /* if a specific delay period was requested, continue
2787 * until that delay has passed. don't stop just because
2788 * incoming media has arrived.
2789 */
2790 if (delay) {
2791 continue;
2792 }
2793
2794 switch (new_frame->frametype) {
2795 /* all of these frametypes qualify as 'media' */
2796 case AST_FRAME_VOICE:
2797 case AST_FRAME_VIDEO:
2798 case AST_FRAME_TEXT:
2801 case AST_FRAME_DTMF_END:
2802 case AST_FRAME_IMAGE:
2803 case AST_FRAME_HTML:
2804 case AST_FRAME_MODEM:
2805 case AST_FRAME_RTCP:
2806 done = 1;
2807 break;
2808 case AST_FRAME_CONTROL:
2809 case AST_FRAME_IAX:
2812 case AST_FRAME_NULL:
2813 case AST_FRAME_CNG:
2814 break;
2815 }
2816
2817 if (done) {
2818 break;
2819 }
2820 }
2821
2822 ast_channel_lock(chan);
2823 while ((cur = AST_LIST_REMOVE_HEAD(&frames, frame_list))) {
2824 if (res == 0) {
2825 ast_queue_frame_head(chan, cur);
2826 }
2827 ast_frfree(cur);
2828 }
2829 ast_channel_unlock(chan);
2830 } while (0);
2831 break;
2832 default:
2833 break;
2834 }
2835
2836 return res;
2837}
#define ast_log
Definition astobj2.c:42
struct ast_frame * ast_read(struct ast_channel *chan)
Reads a frame.
Definition channel.c:4312
int ast_queue_frame_head(struct ast_channel *chan, struct ast_frame *fin)
Queue one or more frames to the head of a channel's frame queue.
Definition channel.c:1176
int ast_waitfor(struct ast_channel *c, int ms)
Wait for input on a channel.
Definition channel.c:3200
int ast_raw_answer(struct ast_channel *chan)
Answer a channel.
Definition channel.c:2724
const char * ast_channel_name(const struct ast_channel *chan)
#define ast_channel_lock(chan)
Definition channel.h:2989
#define ast_channel_unlock(chan)
Definition channel.h:2990
ast_channel_state
ast_channel states
@ AST_STATE_RING
@ AST_STATE_RINGING
#define SCOPE_TRACE(__level,...)
#define ast_frisolate(fr)
Makes a frame independent of any static storage.
#define ast_frfree(fr)
@ AST_FRAME_DTMF_END
@ AST_FRAME_DTMF_BEGIN
@ AST_FRAME_BRIDGE_ACTION_SYNC
@ AST_FRAME_TEXT_DATA
@ AST_FRAME_CONTROL
@ AST_FRAME_BRIDGE_ACTION
@ AST_CONTROL_HANGUP
#define ast_debug(level,...)
Log a DEBUG message.
#define LOG_WARNING
#define AST_LIST_HEAD_INIT_NOLOCK(head)
Initializes a list head structure.
#define AST_LIST_HEAD_NOLOCK(name, type)
Defines a structure to be used to hold a list of specified type (with no lock).
#define AST_LIST_INSERT_HEAD(head, elm, field)
Inserts a list entry at the head of a list.
#define AST_LIST_REMOVE_HEAD(head, field)
Removes and returns the head entry from a list.
int errno
static int frames
Definition parser.c:51
Data structure associated with a single frame of data.
struct ast_frame_subclass subclass
enum ast_frame_type frametype
int done
int ast_remaining_ms(struct timeval start, int max_ms)
Calculate remaining milliseconds given a starting timestamp and upper bound.
Definition utils.c:2315
struct timeval ast_tvnow(void)
Returns current timeval. Meant to replace calls to gettimeofday().
Definition time.h:159
#define MAX(a, b)
Definition utils.h:254

References ast_channel_lock, ast_channel_name(), ast_channel_unlock, AST_CONTROL_HANGUP, ast_debug, AST_FRAME_BRIDGE_ACTION, AST_FRAME_BRIDGE_ACTION_SYNC, AST_FRAME_CNG, AST_FRAME_CONTROL, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, AST_FRAME_HTML, AST_FRAME_IAX, AST_FRAME_IMAGE, AST_FRAME_MODEM, AST_FRAME_NULL, AST_FRAME_RTCP, AST_FRAME_TEXT, AST_FRAME_TEXT_DATA, AST_FRAME_VIDEO, AST_FRAME_VOICE, ast_frfree, ast_frisolate, AST_LIST_HEAD_INIT_NOLOCK, AST_LIST_HEAD_NOLOCK, AST_LIST_INSERT_HEAD, AST_LIST_REMOVE_HEAD, ast_log, ast_queue_frame_head(), ast_raw_answer(), ast_read(), ast_remaining_ms(), AST_STATE_RING, AST_STATE_RINGING, ast_tvnow(), ast_waitfor(), done, errno, frames, ast_frame::frametype, ast_frame_subclass::integer, LOG_WARNING, MAX, SCOPE_TRACE, and ast_frame::subclass.

Referenced by ast_answer(), pbx_builtin_answer(), and pbx_builtin_incomplete().

◆ __ast_change_name_nolink()

static void __ast_change_name_nolink ( struct ast_channel chan,
const char *  newname 
)
static

this function simply changes the name of the channel and issues a manager_event with out unlinking and linking the channel from the ao2_container. This should only be used when the channel has already been unlinked from the ao2_container.

Definition at line 6799 of file channel.c.

6800{
6801 /*** DOCUMENTATION
6802 <managerEvent language="en_US" name="Rename">
6803 <managerEventInstance class="EVENT_FLAG_CALL">
6804 <since>
6805 <version>16.24.0</version>
6806 <version>18.10.0</version>
6807 <version>19.2.0</version>
6808 </since>
6809 <synopsis>Raised when the name of a channel is changed.</synopsis>
6810 </managerEventInstance>
6811 </managerEvent>
6812 ***/
6813 ast_manager_event(chan, EVENT_FLAG_CALL, "Rename",
6814 "Channel: %s\r\n"
6815 "Newname: %s\r\n"
6816 "Uniqueid: %s\r\n",
6817 ast_channel_name(chan), newname, ast_channel_uniqueid(chan));
6818 ast_channel_name_set(chan, newname);
6819}
const char * ast_channel_uniqueid(const struct ast_channel *chan)
void ast_channel_name_set(struct ast_channel *chan, const char *value)
#define EVENT_FLAG_CALL
Definition manager.h:76
#define ast_manager_event(chan, category, event, contents,...)
Definition manager.h:257

References ast_channel_name(), ast_channel_name_set(), ast_channel_uniqueid(), ast_manager_event, and EVENT_FLAG_CALL.

Referenced by ast_change_name().

◆ __ast_channel_alloc()

struct ast_channel * __ast_channel_alloc ( int  needqueue,
int  state,
const char *  cid_num,
const char *  cid_name,
const char *  acctcode,
const char *  exten,
const char *  context,
const struct ast_assigned_ids assignedids,
const struct ast_channel requestor,
enum ama_flags  amaflag,
struct ast_endpoint endpoint,
const char *  file,
int  line,
const char *  function,
const char *  name_fmt,
  ... 
)

Create a channel structure.

Since
1.8
Return values
NULLfailure
non-NULLsuccessfully allocated channel
Note
Absolutely NO channel locks should be held before calling this function.
By default, new channels are set to the "s" extension and "default" context.
Since 12.0.0 this function returns with the newly created channel locked.

Definition at line 967 of file channel.c.

974{
975 va_list ap;
976 struct ast_channel *result;
977
978 va_start(ap, name_fmt);
979 result = __ast_channel_alloc_ap(needqueue, state, cid_num, cid_name, acctcode, exten, context,
980 assignedids, requestor, amaflag, endpoint, NULL, file, line, function, name_fmt, ap);
981 va_end(ap);
982
983 return result;
984}
static PGresult * result
Definition cel_pgsql.c:84
static struct ast_channel * __ast_channel_alloc_ap(int needqueue, int state, const char *cid_num, const char *cid_name, const char *acctcode, const char *exten, const char *context, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, enum ama_flags amaflag, struct ast_endpoint *endpoint, struct ast_channel_initializers *initializers, const char *file, int line, const char *function, const char *name_fmt, va_list ap)
Create a new channel structure.
Definition channel.c:746
#define NULL
Definition resample.c:96
Main Channel structure associated with a channel.
char exten[AST_MAX_EXTENSION]
struct ast_endpoint * endpoint
char context[AST_MAX_CONTEXT]

References __ast_channel_alloc_ap(), ast_channel::context, ast_channel::endpoint, ast_channel::exten, NULL, and result.

◆ __ast_channel_alloc_ap()

static struct ast_channel * __ast_channel_alloc_ap ( int  needqueue,
int  state,
const char *  cid_num,
const char *  cid_name,
const char *  acctcode,
const char *  exten,
const char *  context,
const struct ast_assigned_ids assignedids,
const struct ast_channel requestor,
enum ama_flags  amaflag,
struct ast_endpoint endpoint,
struct ast_channel_initializers initializers,
const char *  file,
int  line,
const char *  function,
const char *  name_fmt,
va_list  ap 
)
static

Create a new channel structure.

Definition at line 746 of file channel.c.

751{
752 struct ast_channel *tmp;
753 struct varshead *headp;
754 char *tech = "", *tech2 = NULL;
755 struct ast_format_cap *nativeformats;
756 struct ast_sched_context *schedctx;
757 struct ast_timer *timer;
758 struct timeval now;
759 const struct ast_channel_tech *channel_tech;
760 struct ast_stream_topology *topology;
761
762 /* If shutting down, don't allocate any new channels */
763 if (ast_shutting_down()) {
764 ast_log(LOG_WARNING, "Channel allocation failed: Refusing due to active shutdown\n");
765 return NULL;
766 }
767
768 tmp = __ast_channel_internal_alloc_with_initializers(ast_channel_destructor, assignedids, requestor, initializers,
769 file, line, function);
770 if (!tmp) {
771 /* Channel structure allocation failure. */
772 return NULL;
773 }
774
776
777 /*
778 * Init file descriptors to unopened state so
779 * the destructor can know not to close them.
780 */
784
786 if (!nativeformats) {
787 /*
788 * Aborting the channel creation. We do not need to complete staging
789 * the channel snapshot because the channel has not been finalized or
790 * linked into the channels container yet. Nobody else knows about
791 * this channel nor will anybody ever know about it.
792 */
793 return ast_channel_unref(tmp);
794 }
795 ast_format_cap_append(nativeformats, ast_format_none, 0);
796 ast_channel_nativeformats_set(tmp, nativeformats);
797 ao2_ref(nativeformats, -1);
798
803
804 if (!(schedctx = ast_sched_context_create())) {
805 ast_log(LOG_WARNING, "Channel allocation failed: Unable to create schedule context\n");
806 /* See earlier channel creation abort comment above. */
807 return ast_channel_unref(tmp);
808 }
809 ast_channel_sched_set(tmp, schedctx);
810
816
817 if (cid_name) {
819 ast_channel_caller(tmp)->id.name.str = ast_strdup(cid_name);
820 if (!ast_channel_caller(tmp)->id.name.str) {
821 /* See earlier channel creation abort comment above. */
822 return ast_channel_unref(tmp);
823 }
824 }
825 if (cid_num) {
827 ast_channel_caller(tmp)->id.number.str = ast_strdup(cid_num);
828 if (!ast_channel_caller(tmp)->id.number.str) {
829 /* See earlier channel creation abort comment above. */
830 return ast_channel_unref(tmp);
831 }
832 }
833
834 if ((timer = ast_timer_open())) {
836 if (strcmp(ast_timer_get_name(ast_channel_timer(tmp)), "timerfd")) {
837 needqueue = 0;
838 }
840 }
841
842 if (needqueue && ast_channel_internal_alertpipe_init(tmp)) {
843 /* See earlier channel creation abort comment above. */
844 return ast_channel_unref(tmp);
845 }
846
847 if (!(topology = ast_stream_topology_alloc())) {
848 return ast_channel_unref(tmp);
849 }
851
852 /* Always watch the alertpipe */
854 /* And timing pipe */
856
857 /* Initial state */
860
863
866
867 now = ast_tvnow();
869
871
872 if (!ast_strlen_zero(name_fmt)) {
873 char *slash, *slash2;
874 /* Almost every channel is calling this function, and setting the name via the ast_string_field_build() call.
875 * And they all use slightly different formats for their name string.
876 * This means, to set the name here, we have to accept variable args, and call the string_field_build from here.
877 * This means, that the stringfields must have a routine that takes the va_lists directly, and
878 * uses them to build the string, instead of forming the va_lists internally from the vararg ... list.
879 * This new function was written so this can be accomplished.
880 */
881 ast_channel_name_build_va(tmp, name_fmt, ap);
882 tech = ast_strdupa(ast_channel_name(tmp));
883 if ((slash = strchr(tech, '/'))) {
884 if ((slash2 = strchr(slash + 1, '/'))) {
885 tech2 = slash + 1;
886 *slash2 = '\0';
887 }
888 *slash = '\0';
889 }
890 } else {
891 /*
892 * Start the string with '-' so it becomes an empty string
893 * in the destructor.
894 */
895 ast_channel_name_set(tmp, "-**Unknown**");
896 }
897
898 if (amaflag != AST_AMA_NONE) {
899 ast_channel_amaflags_set(tmp, amaflag);
900 } else {
902 }
903
904 if (!ast_strlen_zero(acctcode)) {
905 ast_channel_accountcode_set(tmp, acctcode);
906 }
907 ast_channel_language_set(tmp, ast_defaultlanguage);
908
909 ast_channel_context_set(tmp, S_OR(context, "default"));
910 ast_channel_exten_set(tmp, S_OR(exten, "s"));
912
913 headp = ast_channel_varshead(tmp);
915
919
920 channel_tech = ast_get_channel_tech(tech);
921 if (!channel_tech && !ast_strlen_zero(tech2)) {
922 channel_tech = ast_get_channel_tech(tech2);
923 }
924 if (channel_tech) {
925 ast_channel_tech_set(tmp, channel_tech);
926 } else {
928 }
929
930 /* You might scream "locking inversion" at seeing this but it is actually perfectly fine.
931 * Since the channel was just created nothing can know about it yet or even acquire it.
932 */
933 ast_channel_lock(tmp);
934
936
937 if (do_ids_conflict(assignedids, 0)) {
941 /* See earlier channel creation abort comment above. */
942 return ast_channel_unref(tmp);
943 }
944
945 /* Finalize and link into the channels container. */
950
951
952 if (endpoint) {
953 ast_channel_endpoint_set(tmp, endpoint);
954 }
955
956 /*
957 * And now, since the channel structure is built, and has its name, let
958 * the world know of its existence
959 */
961
962 ast_debug(1, "Channel %p '%s' allocated\n", tmp, ast_channel_name(tmp));
963
964 return tmp;
965}
int ast_shutting_down(void)
Definition asterisk.c:1889
#define ast_strdup(str)
A wrapper for strdup()
Definition astmm.h:241
#define ast_strdupa(s)
duplicate a string in memory from the stack
Definition astmm.h:298
#define ao2_ref(o, delta)
Reference/unreference an object and return the old refcount.
Definition astobj2.h:459
@ OBJ_NOLOCK
Assume that the ao2_container is already locked.
Definition astobj2.h:1063
static struct ast_timer * timer
Definition chan_iax2.c:401
void ast_party_redirecting_init(struct ast_party_redirecting *init)
Initialize the given redirecting structure.
Definition channel.c:2109
static const struct ast_channel_tech null_tech
Definition channel.c:703
static int chancount
Definition channel.c:97
void ast_party_dialed_init(struct ast_party_dialed *init)
Initialize the given dialed structure.
Definition channel.c:1915
unsigned long global_fin
Definition channel.c:99
static int do_ids_conflict(const struct ast_assigned_ids *assignedids, int rdlock)
Definition channel.c:711
void ast_party_connected_line_init(struct ast_party_connected_line *init)
Initialize the given connected line structure.
Definition channel.c:2009
void ast_channel_set_fd(struct ast_channel *chan, int which, int fd)
Definition channel.c:2417
static void ast_channel_destructor(void *obj)
Free a channel structure.
Definition channel.c:2181
unsigned long global_fout
Definition channel.c:99
const struct ast_channel_tech * ast_get_channel_tech(const char *name)
Get handle to channel driver based on name.
Definition channel.c:593
#define DEFAULT_AMA_FLAGS
Definition channel.c:112
void ast_party_caller_init(struct ast_party_caller *init)
Initialize the given caller structure.
Definition channel.c:1965
void ast_channel_exten_set(struct ast_channel *chan, const char *value)
struct varshead * ast_channel_varshead(struct ast_channel *chan)
int ast_channel_internal_alert_readfd(struct ast_channel *chan)
void ast_channel_nativeformats_set(struct ast_channel *chan, struct ast_format_cap *value)
void ast_channel_internal_fd_clear_all(struct ast_channel *chan)
void ast_channel_hold_state_set(struct ast_channel *chan, int value)
struct ast_party_redirecting * ast_channel_redirecting(struct ast_channel *chan)
void ast_channel_vstreamid_set(struct ast_channel *chan, int value)
@ AST_CHANNEL_ERROR_ID_EXISTS
Definition channel.h:4922
void ast_channel_streamid_set(struct ast_channel *chan, int value)
struct ast_party_connected_line * ast_channel_connected(struct ast_channel *chan)
void ast_channel_timingfd_set(struct ast_channel *chan, int value)
void ast_channel_endpoint_set(struct ast_channel *chan, struct ast_endpoint *endpoint)
@ AST_AMA_NONE
Definition channel.h:1198
#define AST_ALERT_FD
Definition channel.h:202
void ast_channel_timer_set(struct ast_channel *chan, struct ast_timer *value)
void ast_channel_fin_set(struct ast_channel *chan, unsigned int value)
void ast_channel_set_rawreadformat(struct ast_channel *chan, struct ast_format *format)
int ast_channel_timingfd(const struct ast_channel *chan)
#define AST_TIMING_FD
Definition channel.h:203
void ast_channel_set_rawwriteformat(struct ast_channel *chan, struct ast_format *format)
struct ast_party_dialed * ast_channel_dialed(struct ast_channel *chan)
void ast_channel_creationtime_set(struct ast_channel *chan, struct timeval *value)
void ast_channel_set_readformat(struct ast_channel *chan, struct ast_format *format)
#define ast_channel_unref(c)
Decrease channel reference count.
Definition channel.h:3025
void ast_channel_amaflags_set(struct ast_channel *chan, enum ama_flags value)
struct ast_party_connected_line * ast_channel_connected_indicated(struct ast_channel *chan)
void ast_channel_context_set(struct ast_channel *chan, const char *value)
void ast_channel_state_set(struct ast_channel *chan, enum ast_channel_state)
void ast_channel_fout_set(struct ast_channel *chan, unsigned int value)
struct ast_autochan_list * ast_channel_autochans(struct ast_channel *chan)
struct ast_party_caller * ast_channel_caller(struct ast_channel *chan)
struct ast_timer * ast_channel_timer(const struct ast_channel *chan)
void ast_channel_internal_alertpipe_clear(struct ast_channel *chan)
void ast_channel_priority_set(struct ast_channel *chan, int value)
int ast_channel_internal_alertpipe_init(struct ast_channel *chan)
void ast_channel_sched_set(struct ast_channel *chan, struct ast_sched_context *value)
void ast_channel_tech_set(struct ast_channel *chan, const struct ast_channel_tech *value)
struct ast_datastore_list * ast_channel_datastores(struct ast_channel *chan)
void ast_channel_set_writeformat(struct ast_channel *chan, struct ast_format *format)
void ast_channel_internal_set_stream_topology(struct ast_channel *chan, struct ast_stream_topology *topology)
struct ast_channel * __ast_channel_internal_alloc_with_initializers(void(*destructor)(void *obj), const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const struct ast_channel_initializers *initializers, const char *file, int line, const char *function)
struct ast_channelstorage_instance * current_channel_storage_instance
The current channel storage instance.
int ast_channel_internal_setup_topics(struct ast_channel *chan)
void ast_channel_internal_finalize(struct ast_channel *chan)
void ast_channel_internal_errno_set(enum ast_channel_error error)
void ast_channel_name_build_va(struct ast_channel *chan, const char *fmt, va_list ap)
#define CHANNELSTORAGE_API(_instance, _func,...)
struct ast_format * ast_format_none
Built-in "null" format.
@ AST_FORMAT_CAP_FLAG_DEFAULT
Definition format_cap.h:38
#define ast_format_cap_append(cap, format, framing)
Add format capability to capabilities structure.
Definition format_cap.h:99
#define ast_format_cap_alloc(flags)
Allocate a new ast_format_cap structure.
Definition format_cap.h:49
static const char name[]
Definition format_mp3.c:68
void ast_channel_stage_snapshot_done(struct ast_channel *chan)
Clear flag to indicate channel snapshot is being staged, and publish snapshot.
void ast_channel_stage_snapshot(struct ast_channel *chan)
Set flag to indicate channel snapshot is being staged.
@ AST_CONTROL_UNHOLD
int ast_atomic_fetchadd_int(volatile int *p, int v)
Atomically add v to *p and return the previous value of *p.
Definition lock.h:764
char ast_defaultlanguage[]
Definition options.c:99
void ast_pbx_hangup_handler_init(struct ast_channel *chan)
Init the hangup handler container on a channel.
struct ast_sched_context * ast_sched_context_create(void)
Create a scheduler context.
Definition sched.c:238
struct ast_stream_topology * ast_stream_topology_alloc(void)
Create a stream topology.
Definition stream.c:652
#define S_OR(a, b)
returns the equivalent of logic or for strings: first one if not empty, otherwise second one.
Definition strings.h:80
static force_inline int attribute_pure ast_strlen_zero(const char *s)
Definition strings.h:65
Structure to describe a channel "technology", ie a channel driver See for examples:
Definition channel.h:648
Format capabilities structure, holds formats + preference order + etc.
Definition format_cap.c:54
struct ast_party_id id
Caller party ID.
Definition channel.h:422
struct ast_party_name name
Subscriber name.
Definition channel.h:342
struct ast_party_number number
Subscriber phone number.
Definition channel.h:344
unsigned char valid
TRUE if the name information is valid/present.
Definition channel.h:281
char * str
Subscriber name (Malloced)
Definition channel.h:266
unsigned char valid
TRUE if the number information is valid/present.
Definition channel.h:299
char * str
Subscriber phone number (Malloced)
Definition channel.h:293
Number structure.
const char * ast_timer_get_name(const struct ast_timer *handle)
Get name of timer in use.
Definition timing.c:196
struct ast_timer * ast_timer_open(void)
Open a timer.
Definition timing.c:122
int ast_timer_fd(const struct ast_timer *handle)
Get a poll()-able file descriptor for a timer.
Definition timing.c:161

References __ast_channel_internal_alloc_with_initializers(), ao2_ref, AST_ALERT_FD, AST_AMA_NONE, ast_atomic_fetchadd_int(), ast_channel_amaflags_set(), ast_channel_autochans(), ast_channel_caller(), ast_channel_connected(), ast_channel_connected_indicated(), ast_channel_context_set(), ast_channel_creationtime_set(), ast_channel_datastores(), ast_channel_destructor(), ast_channel_dialed(), ast_channel_endpoint_set(), AST_CHANNEL_ERROR_ID_EXISTS, ast_channel_exten_set(), ast_channel_fin_set(), ast_channel_fout_set(), ast_channel_hold_state_set(), ast_channel_internal_alert_readfd(), ast_channel_internal_alertpipe_clear(), ast_channel_internal_alertpipe_init(), ast_channel_internal_errno_set(), ast_channel_internal_fd_clear_all(), ast_channel_internal_finalize(), ast_channel_internal_set_stream_topology(), ast_channel_internal_setup_topics(), ast_channel_lock, ast_channel_name(), ast_channel_name_build_va(), ast_channel_name_set(), ast_channel_nativeformats_set(), ast_channel_priority_set(), ast_channel_redirecting(), ast_channel_sched_set(), ast_channel_set_fd(), ast_channel_set_rawreadformat(), ast_channel_set_rawwriteformat(), ast_channel_set_readformat(), ast_channel_set_writeformat(), ast_channel_stage_snapshot(), ast_channel_stage_snapshot_done(), ast_channel_state_set(), ast_channel_streamid_set(), ast_channel_tech_set(), ast_channel_timer(), ast_channel_timer_set(), ast_channel_timingfd(), ast_channel_timingfd_set(), ast_channel_unlock, ast_channel_unref, ast_channel_varshead(), ast_channel_vstreamid_set(), AST_CONTROL_UNHOLD, ast_debug, ast_defaultlanguage, ast_format_cap_alloc, ast_format_cap_append, AST_FORMAT_CAP_FLAG_DEFAULT, ast_format_none, ast_get_channel_tech(), AST_LIST_HEAD_INIT_NOLOCK, ast_log, ast_party_caller_init(), ast_party_connected_line_init(), ast_party_dialed_init(), ast_party_redirecting_init(), ast_pbx_hangup_handler_init(), ast_sched_context_create(), ast_shutting_down(), ast_strdup, ast_strdupa, ast_stream_topology_alloc(), ast_strlen_zero(), ast_timer_fd(), ast_timer_get_name(), ast_timer_open(), AST_TIMING_FD, ast_tvnow(), chancount, CHANNELSTORAGE_API, current_channel_storage_instance, DEFAULT_AMA_FLAGS, do_ids_conflict(), global_fin, global_fout, ast_party_caller::id, LOG_WARNING, name, ast_party_id::name, NULL, null_tech, ast_party_id::number, OBJ_NOLOCK, S_OR, ast_party_name::str, ast_party_number::str, timer, ast_party_name::valid, and ast_party_number::valid.

Referenced by __ast_channel_alloc(), and __ast_channel_alloc_with_initializers().

◆ __ast_channel_alloc_with_initializers()

struct ast_channel * __ast_channel_alloc_with_initializers ( int  needqueue,
int  state,
const char *  cid_num,
const char *  cid_name,
const char *  acctcode,
const char *  exten,
const char *  context,
const struct ast_assigned_ids assignedids,
const struct ast_channel requestor,
enum ama_flags  amaflag,
struct ast_endpoint endpoint,
struct ast_channel_initializers initializers,
const char *  file,
int  line,
const char *  function,
const char *  name_fmt,
  ... 
)

Create a channel structure.

Since
18.25.0
Return values
NULLfailure
non-NULLsuccessfully allocated channel
Note
Absolutely NO channel locks should be held before calling this function.
By default, new channels are set to the "s" extension and "default" context.
Same as __ast_channel_alloc but with ast_channel_initializers struct.

Definition at line 986 of file channel.c.

993{
994 va_list ap;
995 struct ast_channel *result;
996
997 va_start(ap, name_fmt);
998 result = __ast_channel_alloc_ap(needqueue, state, cid_num, cid_name, acctcode, exten, context,
999 assignedids, requestor, amaflag, endpoint, initializers, file, line, function, name_fmt, ap);
1000 va_end(ap);
1001
1002 return result;
1003}

References __ast_channel_alloc_ap(), ast_channel::context, ast_channel::endpoint, ast_channel::exten, and result.

◆ __ast_dummy_channel_alloc()

struct ast_channel * __ast_dummy_channel_alloc ( const char *  file,
int  line,
const char *  function 
)

Definition at line 1007 of file channel.c.

1008{
1009 struct ast_channel *tmp;
1010 struct varshead *headp;
1011
1013 file, line, function);
1014 if (!tmp) {
1015 /* Dummy channel structure allocation failure. */
1016 return NULL;
1017 }
1018
1021
1022 /*
1023 * Init file descriptors to unopened state just in case
1024 * autoservice is called on the channel or something tries to
1025 * read a frame from it.
1026 */
1027 ast_channel_timingfd_set(tmp, -1);
1030
1032
1034
1035 headp = ast_channel_varshead(tmp);
1037
1038 return tmp;
1039}
static void ast_dummy_channel_destructor(void *obj)
Free a dummy channel structure.
Definition channel.c:2324
struct ast_channel * __ast_channel_internal_alloc(void(*destructor)(void *obj), const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *file, int line, const char *function)

References __ast_channel_internal_alloc(), ast_channel_datastores(), ast_channel_hold_state_set(), ast_channel_internal_alertpipe_clear(), ast_channel_internal_fd_clear_all(), ast_channel_internal_setup_topics(), ast_channel_timingfd_set(), ast_channel_varshead(), AST_CONTROL_UNHOLD, ast_dummy_channel_destructor(), AST_LIST_HEAD_INIT_NOLOCK, ast_pbx_hangup_handler_init(), and NULL.

◆ __ast_queue_frame()

static int __ast_queue_frame ( struct ast_channel chan,
struct ast_frame fin,
int  head,
struct ast_frame after 
)
static

Definition at line 1041 of file channel.c.

1042{
1043 struct ast_frame *f;
1044 struct ast_frame *cur;
1045 unsigned int new_frames = 0;
1046 unsigned int new_voice_frames = 0;
1047 unsigned int queued_frames = 0;
1048 unsigned int queued_voice_frames = 0;
1050
1051 ast_channel_lock(chan);
1052
1053 /*
1054 * Check the last frame on the queue if we are queuing the new
1055 * frames after it.
1056 */
1057 cur = AST_LIST_LAST(ast_channel_readq(chan));
1058 if (cur && cur->frametype == AST_FRAME_CONTROL && !head && (!after || after == cur)) {
1059 switch (cur->subclass.integer) {
1061 if (fin->frametype == AST_FRAME_CONTROL
1062 && fin->subclass.integer == AST_CONTROL_HANGUP) {
1063 /*
1064 * Destroy the end-of-Q marker frame so we can queue the hangup
1065 * frame in its place.
1066 */
1068 ast_frfree(cur);
1069
1070 /*
1071 * This has degenerated to a normal queue append anyway. Since
1072 * we just destroyed the last frame in the queue we must make
1073 * sure that "after" is NULL or bad things will happen.
1074 */
1075 after = NULL;
1076 break;
1077 }
1078 /* Fall through */
1079 case AST_CONTROL_HANGUP:
1080 /* Don't queue anything. */
1081 ast_channel_unlock(chan);
1082 return 0;
1083 default:
1084 break;
1085 }
1086 }
1087
1088 /* Build copies of all the new frames and count them */
1090 for (cur = fin; cur; cur = AST_LIST_NEXT(cur, frame_list)) {
1091 if (!(f = ast_frdup(cur))) {
1092 if (AST_LIST_FIRST(&frames)) {
1094 }
1095 ast_channel_unlock(chan);
1096 return -1;
1097 }
1098
1100 new_frames++;
1101 if (f->frametype == AST_FRAME_VOICE) {
1102 new_voice_frames++;
1103 }
1104 }
1105
1106 /* Count how many frames exist on the queue */
1108 queued_frames++;
1109 if (cur->frametype == AST_FRAME_VOICE) {
1110 queued_voice_frames++;
1111 }
1112 }
1113
1114 if ((queued_frames + new_frames > 128 || queued_voice_frames + new_voice_frames > 96)) {
1115 int total_queued = queued_frames + new_frames;
1116 int total_voice = queued_voice_frames + new_voice_frames;
1117 int count = 0;
1118 ast_log(LOG_WARNING, "Exceptionally long %squeue length (%d voice / %d total) queuing to %s\n",
1119 queued_frames + new_frames > 128 ? "" : "voice ", total_voice, total_queued, ast_channel_name(chan));
1121 /* Save the most recent frame */
1122 if (!AST_LIST_NEXT(cur, frame_list)) {
1123 break;
1124 } else if (cur->frametype == AST_FRAME_VOICE || cur->frametype == AST_FRAME_VIDEO || cur->frametype == AST_FRAME_NULL) {
1125 if (++count > 64) {
1126 break;
1127 }
1129 ast_frfree(cur);
1130
1131 /* Read from the alert pipe for each flushed frame. */
1133 }
1134 }
1136 if (count) {
1137 ast_debug(4, "Discarded %d frame%s due to queue overload on %s\n", count, ESS(count), ast_channel_name(chan));
1138 }
1139 }
1140
1141 if (after) {
1143 } else {
1144 if (head) {
1147 }
1149 }
1150
1151 if (ast_channel_alert_writable(chan)) {
1152 /* Write to the alert pipe for each added frame */
1153 while (new_frames--) {
1154 if (ast_channel_alert_write(chan)) {
1155 ast_log(LOG_WARNING, "Unable to write to alert pipe on %s (qlen = %u): %s!\n",
1156 ast_channel_name(chan), queued_frames, strerror(errno));
1157 break;
1158 }
1159 }
1160 } else if (ast_channel_timingfd(chan) > -1) {
1163 pthread_kill(ast_channel_blocker(chan), SIGURG);
1164 }
1165
1166 ast_channel_unlock(chan);
1167
1168 return 0;
1169}
struct ast_flags * ast_channel_flags(struct ast_channel *chan)
pthread_t ast_channel_blocker(const struct ast_channel *chan)
int ast_channel_alert_write(struct ast_channel *chan)
struct ast_readq_list * ast_channel_readq(struct ast_channel *chan)
ast_alert_status_t ast_channel_internal_alert_read(struct ast_channel *chan)
@ AST_FLAG_BLOCKING
Definition channel.h:1005
int ast_channel_alert_writable(struct ast_channel *chan)
#define ESS(x)
Definition cli.h:59
#define ast_frdup(fr)
Copies a frame.
@ AST_CONTROL_END_OF_Q
#define AST_LIST_LAST(head)
Returns the last entry contained in a list.
#define AST_LIST_INSERT_LIST_AFTER(head, list, elm, field)
Inserts a whole list after a specific entry in a list.
#define AST_LIST_TRAVERSE(head, var, field)
Loops over (traverses) the entries in a list.
#define AST_LIST_INSERT_TAIL(head, elm, field)
Appends a list entry to the tail of a list.
#define AST_LIST_TRAVERSE_SAFE_END
Closes a safe loop traversal block.
#define AST_LIST_REMOVE(head, elm, field)
Removes a specific entry from a list.
#define AST_LIST_TRAVERSE_SAFE_BEGIN(head, var, field)
Loops safely over (traverses) the entries in a list.
#define AST_LIST_REMOVE_CURRENT(field)
Removes the current entry from a list during a traversal.
#define AST_LIST_APPEND_LIST(head, list, field)
Appends a whole list to the tail of a list.
#define AST_LIST_FIRST(head)
Returns the first entry contained in a list.
#define AST_LIST_NEXT(elm, field)
Returns the next entry in the list after the given entry.
int ast_timer_enable_continuous(const struct ast_timer *handle)
Enable continuous mode.
Definition timing.c:176
#define ast_test_flag(p, flag)
Definition utils.h:64

References ast_channel_alert_writable(), ast_channel_alert_write(), ast_channel_blocker(), ast_channel_flags(), ast_channel_internal_alert_read(), ast_channel_lock, ast_channel_name(), ast_channel_readq(), ast_channel_timer(), ast_channel_timingfd(), ast_channel_unlock, AST_CONTROL_END_OF_Q, AST_CONTROL_HANGUP, ast_debug, AST_FLAG_BLOCKING, AST_FRAME_CONTROL, AST_FRAME_NULL, AST_FRAME_VIDEO, AST_FRAME_VOICE, ast_frdup, ast_frfree, AST_LIST_APPEND_LIST, AST_LIST_FIRST, AST_LIST_HEAD_INIT_NOLOCK, AST_LIST_HEAD_NOLOCK, AST_LIST_INSERT_LIST_AFTER, AST_LIST_INSERT_TAIL, AST_LIST_LAST, AST_LIST_NEXT, AST_LIST_REMOVE, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, ast_log, ast_test_flag, ast_timer_enable_continuous(), errno, ESS, frames, ast_frame::frametype, ast_frame_subclass::integer, LOG_WARNING, NULL, and ast_frame::subclass.

Referenced by __ast_read(), ast_queue_frame(), and ast_queue_frame_head().

◆ __ast_read()

static struct ast_frame * __ast_read ( struct ast_channel chan,
int  dropaudio,
int  dropnondefault 
)
static
Todo:
XXX It is possible to write a digit to the audiohook twice if the digit was originally read while the channel was in autoservice.

Definition at line 3575 of file channel.c.

3576{
3577 struct ast_frame *f = NULL; /* the return value */
3578 int prestate;
3579 int cause = 0;
3580 struct ast_stream *stream = NULL, *default_stream = NULL;
3581
3582 /* this function is very long so make sure there is only one return
3583 * point at the end (there are only two exceptions to this).
3584 */
3585 ast_channel_lock(chan);
3586
3587 /* Stop if we're a zombie or need a soft hangup */
3589 if (ast_channel_generator(chan))
3591
3592 /*
3593 * It is possible for chan->_softhangup to be set and there
3594 * still be control frames that need to be read. Instead of
3595 * just going to 'done' in the case of ast_check_hangup(), we
3596 * need to queue the end-of-Q frame so that it can mark the end
3597 * of the read queue. If there are frames to be read,
3598 * ast_queue_control() will be called repeatedly, but will only
3599 * queue the first end-of-Q frame.
3600 */
3603 } else {
3604 goto done;
3605 }
3606 } else {
3607#ifdef AST_DEVMODE
3608 /*
3609 * The ast_waitfor() code records which of the channel's file
3610 * descriptors reported that data is available. In theory,
3611 * ast_read() should only be called after ast_waitfor() reports
3612 * that a channel has data available for reading but certain
3613 * situations with stasis and ARI could give a false indication.
3614 * For this reason, we don't stop any processing.
3615 */
3616 if (ast_channel_fdno(chan) == -1) {
3617 ast_debug(3,
3618 "ast_read() on chan '%s' called with no recorded file descriptor.\n",
3619 ast_channel_name(chan));
3620 }
3621#endif
3622 }
3623
3624 prestate = ast_channel_state(chan);
3625
3626 if (ast_channel_timingfd(chan) > -1 && ast_channel_fdno(chan) == AST_TIMING_FD) {
3627 enum ast_timer_event res;
3628 int trigger_dtmf_emulating = should_trigger_dtmf_emulating(chan);
3629
3631
3633
3634 switch (res) {
3636 if (ast_timer_ack(ast_channel_timer(chan), 1) < 0) {
3637 ast_log(LOG_ERROR, "Failed to acknowledge timer in ast_read\n");
3638 goto done;
3639 }
3640
3641 if (ast_channel_timingfunc(chan)) {
3642 /* save a copy of func/data before unlocking the channel */
3644 void *data = ast_channel_timingdata(chan);
3645 int got_ref = 0;
3647 ao2_ref(data, 1);
3648 got_ref = 1;
3649 }
3650 ast_channel_fdno_set(chan, -1);
3651 ast_channel_unlock(chan);
3652 func(data);
3653 if (got_ref) {
3654 ao2_ref(data, -1);
3655 }
3656
3657 if (trigger_dtmf_emulating) {
3658 /*
3659 * Since we're breaking out of this switch block and not
3660 * returning, we need to re-lock the channel.
3661 */
3662 ast_channel_lock(chan);
3663 /* generate null frame to trigger dtmf emulating */
3664 f = &ast_null_frame;
3665 break;
3666 }
3667 } else if (trigger_dtmf_emulating) {
3668 /* generate null frame to trigger dtmf emulating */
3669 f = &ast_null_frame;
3670 break;
3671 } else {
3673 /* generate very last null frame to trigger dtmf emulating */
3674 f = &ast_null_frame;
3675 break;
3676 }
3677
3678 /* cannot 'goto done' because the channel is already unlocked */
3679 return &ast_null_frame;
3680
3682 if (AST_LIST_EMPTY(ast_channel_readq(chan)) ||
3685 }
3686 break;
3687 }
3688
3691 }
3692
3693 /* Read and ignore anything on the alertpipe, but read only
3694 one sizeof(blah) per frame that we send from it */
3696 f = &ast_null_frame;
3697 goto done;
3698 }
3699
3700 /* Check for pending read queue */
3701 if (!AST_LIST_EMPTY(ast_channel_readq(chan))) {
3702 int skipped_dtmf_frame = 0;
3703 int skip_dtmf = should_skip_dtmf(chan);
3704
3706 /* We have to be picky about which frame we pull off of the readq because
3707 * there are cases where we want to leave DTMF frames on the queue until
3708 * some later time. */
3709
3710 if ( (f->frametype == AST_FRAME_DTMF_BEGIN || f->frametype == AST_FRAME_DTMF_END) && skip_dtmf) {
3711 skipped_dtmf_frame = 1;
3712 continue;
3713 }
3714
3716 break;
3717 }
3719
3720 if (!f) {
3721 /* There were no acceptable frames on the readq. */
3722 f = &ast_null_frame;
3723 if (!skipped_dtmf_frame) {
3724 /*
3725 * Do not trigger alert pipe if only buffered dtmf begin or end frames
3726 * are left in the readq.
3727 */
3729 } else {
3730 /*
3731 * Safely disable continuous timer events if only buffered dtmf begin or end
3732 * frames are left in the readq.
3733 */
3735 }
3736 }
3737
3738 /* Interpret hangup and end-of-Q frames to return NULL */
3739 /* XXX why not the same for frames from the channel ? */
3740 if (f->frametype == AST_FRAME_CONTROL) {
3741 switch (f->subclass.integer) {
3742 case AST_CONTROL_HANGUP:
3744 cause = f->data.uint32;
3745 /* Fall through */
3747 ast_frfree(f);
3748 f = NULL;
3749 break;
3750 default:
3751 break;
3752 }
3753 } else if (f->frametype == AST_FRAME_VOICE || f->frametype == AST_FRAME_VIDEO) {
3754 if (ast_channel_tech(chan) && ast_channel_tech(chan)->read_stream) {
3757 } else {
3758 /* Since this channel driver does not support multistream determine the default stream this frame
3759 * originated from and update the frame to include it.
3760 */
3761 stream = default_stream = ast_channel_get_default_stream(chan, ast_format_get_type(f->subclass.format));
3762 /* In order to allow media to be passed up the underlying media type has to have a format negotiated on
3763 * the channel itself. In cases where this hasn't happened the channel driver is incorrectly passing up
3764 * a frame for a format that has not been negotiated. If this occurs just drop the frame as we have no
3765 * stream that it came from.
3766 */
3767 if (!stream) {
3768 ast_frfree(f);
3769 f = &ast_null_frame;
3770 } else {
3772 }
3773 }
3774 }
3775 } else {
3777 if (ast_channel_tech(chan)->exception)
3778 f = ast_channel_tech(chan)->exception(chan);
3779 else {
3780 ast_log(LOG_WARNING, "Exception flag set on '%s', but no exception handler\n", ast_channel_name(chan));
3781 f = &ast_null_frame;
3782 }
3783 /* Clear the exception flag */
3785 } else if (ast_channel_tech(chan) && ast_channel_tech(chan)->read_stream) {
3786 f = ast_channel_tech(chan)->read_stream(chan);
3787
3788 /* This channel driver supports multistream so the stream_num on the frame is valid, the only
3789 * thing different is that we need to find the default stream so we know whether to invoke the
3790 * default stream logic or not (such as transcoding).
3791 */
3792 if (f && (f->frametype == AST_FRAME_VOICE || f->frametype == AST_FRAME_VIDEO)) {
3795 }
3796 } else if (ast_channel_tech(chan) && ast_channel_tech(chan)->read) {
3797 f = ast_channel_tech(chan)->read(chan);
3798
3799 /* Since this channel driver does not support multistream determine the default stream this frame
3800 * originated from and update the frame to include it.
3801 */
3802 if (f && (f->frametype == AST_FRAME_VOICE || f->frametype == AST_FRAME_VIDEO)) {
3803 stream = default_stream = ast_channel_get_default_stream(chan, ast_format_get_type(f->subclass.format));
3804 if (!stream) {
3805 ast_frfree(f);
3806 f = &ast_null_frame;
3807 } else {
3809 }
3810 }
3811 }
3812 else
3813 ast_log(LOG_WARNING, "No read routine on channel %s\n", ast_channel_name(chan));
3814 }
3815
3816 if (stream == default_stream) {
3817 /* Perform the framehook read event here. After the frame enters the framehook list
3818 * there is no telling what will happen, <insert mad scientist laugh here>!!! */
3820 }
3821
3822 /*
3823 * Reset the recorded file descriptor that triggered this read so that we can
3824 * easily detect when ast_read() is called without properly using ast_waitfor().
3825 */
3826 ast_channel_fdno_set(chan, -1);
3827
3828 if (f) {
3829 struct ast_frame *readq_tail = AST_LIST_LAST(ast_channel_readq(chan));
3830 struct ast_control_read_action_payload *read_action_payload;
3832 int hooked = 0;
3833
3834 /* if the channel driver returned more than one frame, stuff the excess
3835 into the readq for the next ast_read call
3836 */
3837 if (AST_LIST_NEXT(f, frame_list)) {
3841 }
3842
3843 if (dropnondefault && stream != default_stream) {
3844 /* If the frame originates from a non-default stream and the caller can not handle other streams
3845 * absorb the frame and replace it with a null one instead.
3846 */
3847 ast_frfree(f);
3848 f = &ast_null_frame;
3849 }
3850
3851 switch (f->frametype) {
3852 case AST_FRAME_CONTROL:
3854 if (prestate == AST_STATE_UP && ast_channel_is_bridged(chan)) {
3855 ast_debug(1, "Dropping duplicate answer!\n");
3856 ast_frfree(f);
3857 f = &ast_null_frame;
3858 } else {
3859 /*
3860 * Mark when outgoing channel answered so we can know how
3861 * long the channel has been up.
3862 */
3864
3866 }
3867 } else if (f->subclass.integer == AST_CONTROL_READ_ACTION) {
3868 read_action_payload = f->data.ptr;
3869 switch (read_action_payload->action) {
3873 if (ast_connected_line_parse_data(read_action_payload->payload,
3874 read_action_payload->payload_size, &connected)) {
3876 break;
3877 }
3878 ast_channel_unlock(chan);
3881 read_action_payload->payload,
3882 read_action_payload->payload_size);
3883 }
3885 ast_channel_lock(chan);
3886 break;
3888 ast_channel_unlock(chan);
3889 ast_sendtext(chan, (const char *)read_action_payload->payload);
3890 ast_channel_lock(chan);
3891 break;
3893 ast_channel_unlock(chan);
3894 ast_sendtext_data(chan, (struct ast_msg_data *)read_action_payload->payload);
3895 ast_channel_lock(chan);
3896 break;
3897 }
3898 ast_frfree(f);
3899 f = &ast_null_frame;
3900 } else if (f->subclass.integer == AST_CONTROL_STREAM_TOPOLOGY_REQUEST_CHANGE && dropnondefault) {
3901 /* The caller of this function is incapable of handling streams so we don't accept the change request
3902 * and stick to the streams currently on the channel.
3903 */
3905 ast_frfree(f);
3906 f = &ast_null_frame;
3907 } else if (f->subclass.integer == AST_CONTROL_STREAM_TOPOLOGY_CHANGED && dropnondefault) {
3908 /* The caller of this function is incapable of handling streams so we absorb the notification that the
3909 * stream topology has changed.
3910 */
3911 ast_frfree(f);
3912 f = &ast_null_frame;
3913 } else if (f->subclass.integer == AST_CONTROL_FLASH) {
3914 send_flash_event(chan);
3915 } else if (f->subclass.integer == AST_CONTROL_WINK) {
3916 send_wink_event(chan);
3917 }
3918 break;
3919 case AST_FRAME_DTMF_END:
3921 ast_log(LOG_DTMF, "DTMF end '%c' received on %s, duration %ld ms\n", f->subclass.integer, ast_channel_name(chan), f->len);
3922 /* Queue it up if DTMF is deferred, or if DTMF emulation is forced. */
3924 queue_dtmf_readq(chan, f);
3925 ast_frfree(f);
3926 f = &ast_null_frame;
3928 if (!ast_tvzero(*ast_channel_dtmf_tv(chan)) &&
3930 /* If it hasn't been long enough, defer this digit */
3931 queue_dtmf_readq(chan, f);
3932 ast_frfree(f);
3933 f = &ast_null_frame;
3934 } else {
3935 /* There was no begin, turn this into a begin and send the end later */
3936 struct timeval tv = ast_tvnow();
3940 ast_channel_dtmf_tv_set(chan, &tv);
3941 if (f->len) {
3942 if (f->len > option_dtmfminduration)
3944 else
3946 } else
3948 ast_log(LOG_DTMF, "DTMF begin emulation of '%c' with duration %u queued on %s\n", f->subclass.integer, ast_channel_emulate_dtmf_duration(chan), ast_channel_name(chan));
3949
3950 /*
3951 * Start generating 50 fps timer events (null frames) for dtmf emulating
3952 * independently from any existing incoming voice frames.
3953 * If channel generator is already activated in regular mode use these
3954 * timer events to generate null frames.
3955 */
3956 if (!ast_channel_generator(chan)) {
3957 struct ast_timer *timer = ast_channel_timer(chan);
3958 if (timer) {
3960 } else {
3961 ast_log(LOG_WARNING, "No timing module loaded, DTMF length may be inaccurate\n");
3962 }
3963 }
3964 }
3965 if (ast_channel_audiohooks(chan)) {
3966 struct ast_frame *old_frame = f;
3967 /*!
3968 * \todo XXX It is possible to write a digit to the audiohook twice
3969 * if the digit was originally read while the channel was in autoservice. */
3971 if (old_frame != f)
3972 ast_frfree(old_frame);
3973 }
3974 } else {
3975 struct timeval now = ast_tvnow();
3977 ast_log(LOG_DTMF, "DTMF end accepted with begin '%c' on %s\n", f->subclass.integer, ast_channel_name(chan));
3979 if (!f->len)
3980 f->len = ast_tvdiff_ms(now, *ast_channel_dtmf_tv(chan));
3981
3982 /* detect tones that were received on
3983 * the wire with durations shorter than
3984 * option_dtmfminduration and set f->len
3985 * to the actual duration of the DTMF
3986 * frames on the wire. This will cause
3987 * dtmf emulation to be triggered later
3988 * on.
3989 */
3991 f->len = ast_tvdiff_ms(now, *ast_channel_dtmf_tv(chan));
3992 ast_log(LOG_DTMF, "DTMF end '%c' detected to have actual duration %ld on the wire, emulation will be triggered on %s\n", f->subclass.integer, f->len, ast_channel_name(chan));
3993 }
3994 } else if (!f->len) {
3995 ast_log(LOG_DTMF, "DTMF end accepted without begin '%c' on %s\n", f->subclass.integer, ast_channel_name(chan));
3997 }
3999 ast_log(LOG_DTMF, "DTMF end '%c' has duration %ld but want minimum %u, emulating on %s\n", f->subclass.integer, f->len, option_dtmfminduration, ast_channel_name(chan));
4003 ast_frfree(f);
4004 f = &ast_null_frame;
4005
4006 /* Start generating 50 fps timer events (null frames) for dtmf emulating
4007 * independently from any existing incoming voice frames.
4008 * If channel generator is already activated in regular mode use these
4009 * timer events to generate null frames.
4010 */
4011 if (!ast_channel_generator(chan)) {
4012 struct ast_timer *timer = ast_channel_timer(chan);
4013 if (timer) {
4015 } else {
4016 ast_log(LOG_WARNING, "No timing module loaded, DTMF length may be inaccurate\n");
4017 }
4018 }
4019 } else {
4020 ast_log(LOG_DTMF, "DTMF end passthrough '%c' on %s\n", f->subclass.integer, ast_channel_name(chan));
4021 if (f->len < option_dtmfminduration) {
4023 }
4024 ast_channel_dtmf_tv_set(chan, &now);
4025
4026 /* Start generating 50 fps timer events (null frames) for dtmf emulating
4027 * independently from any existing incoming voice frames.
4028 * If channel generator is already activated in regular mode use these
4029 * timer events to generate null frames.
4030 */
4031 if (!ast_channel_generator(chan)) {
4032 struct ast_timer *timer = ast_channel_timer(chan);
4033 if (timer) {
4035 } else {
4036 ast_log(LOG_WARNING, "No timing module loaded, DTMF length may be inaccurate\n");
4037 }
4038 }
4039 }
4040 if (ast_channel_audiohooks(chan)) {
4041 struct ast_frame *old_frame = f;
4043 if (old_frame != f)
4044 ast_frfree(old_frame);
4045 }
4046 }
4047 break;
4050 ast_log(LOG_DTMF, "DTMF begin '%c' received on %s\n", f->subclass.integer, ast_channel_name(chan));
4052 (!ast_tvzero(*ast_channel_dtmf_tv(chan)) &&
4054 ast_log(LOG_DTMF, "DTMF begin ignored '%c' on %s\n", f->subclass.integer, ast_channel_name(chan));
4055 ast_frfree(f);
4056 f = &ast_null_frame;
4057 } else {
4058 struct timeval now = ast_tvnow();
4060 ast_channel_dtmf_tv_set(chan, &now);
4061 ast_log(LOG_DTMF, "DTMF begin passthrough '%c' on %s\n", f->subclass.integer, ast_channel_name(chan));
4062 }
4063 break;
4064 case AST_FRAME_NULL:
4065 /* The EMULATE_DTMF flag must be cleared here as opposed to when the duration
4066 * is reached , because we want to make sure we pass at least one
4067 * voice frame through before starting the next digit, to ensure a gap
4068 * between DTMF digits. */
4070 struct timeval now = ast_tvnow();
4074 } else if (ast_tvdiff_ms(now, *ast_channel_dtmf_tv(chan)) >= ast_channel_emulate_dtmf_duration(chan)) {
4076 ast_frfree(f);
4077 f = ast_channel_dtmff(chan);
4080 f->len = ast_tvdiff_ms(now, *ast_channel_dtmf_tv(chan));
4081 ast_channel_dtmf_tv_set(chan, &now);
4084 ast_log(LOG_DTMF, "DTMF end emulation of '%c' queued on %s\n", f->subclass.integer, ast_channel_name(chan));
4085 if (ast_channel_audiohooks(chan)) {
4086 struct ast_frame *old_frame = f;
4088 if (old_frame != f) {
4089 ast_frfree(old_frame);
4090 }
4091 }
4092
4093 /* Start generating 50 fps timer events (null frames) for dtmf emulating
4094 * independently from any existing incoming voice frames.
4095 * If channel generator is already activated in regular mode use these
4096 * timer events to generate null frames.
4097 */
4098 if (!ast_channel_generator(chan)) {
4099 struct ast_timer *timer = ast_channel_timer(chan);
4100 if (timer) {
4102 } else {
4103 ast_log(LOG_WARNING, "No timing module loaded, DTMF length may be inaccurate\n");
4104 }
4105 }
4106 }
4107 }
4108 break;
4109 case AST_FRAME_VOICE:
4110 /* If media was received from a non-default stream don't perform any actions, let it just go through */
4111 if (stream != default_stream) {
4112 break;
4113 }
4114
4115 /* The EMULATE_DTMF flag must be cleared here as opposed to when the duration
4116 * is reached , because we want to make sure we pass at least one
4117 * voice frame through before starting the next digit, to ensure a gap
4118 * between DTMF digits. */
4122 }
4123
4124 if (dropaudio || ast_test_flag(ast_channel_flags(chan), AST_FLAG_IN_DTMF)) {
4125 if (dropaudio)
4127 ast_frfree(f);
4128 f = &ast_null_frame;
4129 }
4130
4132 struct timeval now = ast_tvnow();
4135 ast_frfree(f);
4136 f = ast_channel_dtmff(chan);
4139 f->len = ast_tvdiff_ms(now, *ast_channel_dtmf_tv(chan));
4140 ast_channel_dtmf_tv_set(chan, &now);
4141 if (ast_channel_audiohooks(chan)) {
4142 struct ast_frame *old_frame = f;
4144 if (old_frame != f)
4145 ast_frfree(old_frame);
4146 }
4147 ast_log(LOG_DTMF, "DTMF end emulation of '%c' queued on %s\n", f->subclass.integer, ast_channel_name(chan));
4148 } else {
4149 /* Drop voice frames while we're still in the middle of the digit */
4150 ast_frfree(f);
4151 f = &ast_null_frame;
4152 }
4153 break;
4154 }
4155 if (f->frametype != AST_FRAME_VOICE) {
4156 break;
4157 }
4160 struct ast_format *core_format;
4161
4162 /*
4163 * Note: This frame may not be one of the current native
4164 * formats. We may have gotten it out of the read queue from
4165 * a previous multi-frame translation, from a framehook
4166 * injected frame, or the device we're talking to isn't
4167 * respecting negotiated formats. Regardless we will accept
4168 * all frames.
4169 *
4170 * Update the read translation path to handle the new format
4171 * that just came in. If the core wants slinear we need to
4172 * setup a new translation path because the core is usually
4173 * doing something with the audio itself and may not handle
4174 * any other format. e.g., Softmix bridge, holding bridge
4175 * announcer channel, recording, AMD... Otherwise, we'll
4176 * setup to pass the frame as is to the core. In this case
4177 * the core doesn't care. The channel is likely in
4178 * autoservice, safesleep, or the channel is in a bridge.
4179 * Let the bridge technology deal with format compatibility
4180 * between the channels in the bridge.
4181 *
4182 * Beware of the transcode_via_slin and genericplc options as
4183 * they force any transcoding to go through slin on a bridge.
4184 * Unfortunately transcode_via_slin is enabled by default and
4185 * genericplc is enabled in the codecs.conf.sample file.
4186 *
4187 * XXX Only updating translation to slinear frames has some
4188 * corner cases if slinear is one of the native formats and
4189 * there are different sample rates involved. We might wind
4190 * up with conflicting translation paths between channels
4191 * where the read translation path on this channel reduces
4192 * the sample rate followed by a write translation path on
4193 * the peer channel that increases the sample rate.
4194 */
4195 core_format = ast_channel_readformat(chan);
4196 if (!ast_format_cache_is_slinear(core_format)) {
4197 core_format = f->subclass.format;
4198 }
4199 if (ast_set_read_format_path(chan, f->subclass.format, core_format)) {
4200 /* Drop frame. We couldn't make it compatible with the core. */
4201 ast_frfree(f);
4202 f = &ast_null_frame;
4203 break;
4204 }
4205 }
4206 /*
4207 * Send frame to audiohooks if present, if frametype is linear, to preserve
4208 * functional compatibility with previous behavior. If not linear, hold off
4209 * until transcoding is done where we are more likely to have a linear frame
4210 */
4212 /* Place hooked after declaration */
4213 struct ast_frame *old_frame = f;
4214 hooked = 1;
4215
4217 if (old_frame != f) {
4218 ast_frfree(old_frame);
4219 }
4220 }
4221
4222 if (ast_channel_readtrans(chan)
4224 f = ast_translate(ast_channel_readtrans(chan), f, 1);
4225 if (!f) {
4226 f = &ast_null_frame;
4227 }
4228 }
4229
4230 /* Second chance at hooking a linear frame, also the last chance */
4231 if (ast_channel_audiohooks(chan) && !hooked) {
4232 struct ast_frame *old_frame = f;
4233
4235 if (old_frame != f) {
4236 ast_frfree(old_frame);
4237 }
4238 }
4239
4240 /*
4241 * It is possible for the translation process on the channel to have
4242 * produced multiple frames from the single input frame we passed it; if
4243 * this happens, queue the additional frames *before* the frames we may
4244 * have queued earlier. if the readq was empty, put them at the head of
4245 * the queue, and if it was not, put them just after the frame that was
4246 * at the end of the queue.
4247 */
4248 if (AST_LIST_NEXT(f, frame_list)) {
4249 struct ast_frame *cur, *multi_frame = AST_LIST_NEXT(f, frame_list);
4250
4251 /* Mark these frames as being re-queued */
4252 for (cur = multi_frame; cur; cur = AST_LIST_NEXT(cur, frame_list)) {
4254 }
4255
4256 if (!readq_tail) {
4257 ast_queue_frame_head(chan, multi_frame);
4258 } else {
4259 __ast_queue_frame(chan, multi_frame, 0, readq_tail);
4260 }
4261 ast_frfree(multi_frame);
4263 }
4264
4265 /*
4266 * Run generator sitting on the line if timing device not available
4267 * and synchronous generation of outgoing frames is necessary
4268 */
4270 break;
4271 case AST_FRAME_RTCP:
4272 /* Incoming RTCP feedback needs to get to the translator for
4273 * outgoing media, which means we treat it as an ast_write */
4274 if (ast_channel_writetrans(chan)) {
4276 }
4277 break;
4278 default:
4279 /* Just pass it on! */
4280 break;
4281 }
4282 } else {
4283 /* Make sure we always return NULL in the future */
4286 }
4287 if (cause)
4288 ast_channel_hangupcause_set(chan, cause);
4289 if (ast_channel_generator(chan))
4291 /* We no longer End the CDR here */
4292 }
4293
4294 /* High bit prints debugging */
4295 if (ast_channel_fin(chan) & DEBUGCHAN_FLAG)
4296 ast_frame_dump(ast_channel_name(chan), f, "<<");
4298
4299done:
4302
4304 /* The list gets recreated if audiohooks are added again later */
4307 }
4308 ast_channel_unlock(chan);
4309 return f;
4310}
@ AST_ALERT_READ_FATAL
Definition alertpipe.h:28
char digit
struct ast_frame * ast_audiohook_write_list(struct ast_channel *chan, struct ast_audiohook_list *audiohook_list, enum ast_audiohook_direction direction, struct ast_frame *frame)
Pass a frame off to be handled by the audiohook core.
Definition audiohook.c:1116
@ AST_AUDIOHOOK_DIRECTION_READ
Definition audiohook.h:49
int ast_audiohook_write_list_empty(struct ast_audiohook_list *audiohook_list)
Determine if a audiohook_list is empty or not.
Definition audiohook.c:1108
void ast_audiohook_detach_list(struct ast_audiohook_list *audiohook_list)
Detach audiohooks from list and destroy said list.
Definition audiohook.c:602
static int connected
Definition cdr_pgsql.c:73
static void send_dtmf_begin_event(struct ast_channel *chan, enum DtmfDirection direction, const char digit)
Definition channel.c:3409
int ast_set_read_format_path(struct ast_channel *chan, struct ast_format *raw_format, struct ast_format *core_format)
Set specific read path on channel.
Definition channel.c:5545
#define AST_MIN_DTMF_GAP
Definition channel.c:116
static void ast_read_generator_actions(struct ast_channel *chan, struct ast_frame *f)
Definition channel.c:3463
int ast_queue_frame(struct ast_channel *chan, struct ast_frame *fin)
Queue one or more frames to a channel's frame queue.
Definition channel.c:1171
void ast_party_connected_line_free(struct ast_party_connected_line *doomed)
Destroy the connected line information contents.
Definition channel.c:2059
int ast_sendtext_data(struct ast_channel *chan, struct ast_msg_data *msg)
Sends text to a channel in an ast_msg_data structure wrapper with ast_sendtext as fallback.
Definition channel.c:4808
#define AST_DEFAULT_EMULATE_DTMF_DURATION
Definition channel.c:106
static void queue_dtmf_readq(struct ast_channel *chan, struct ast_frame *f)
Definition channel.c:3517
int ast_channel_stream_topology_changed(struct ast_channel *chan, struct ast_stream_topology *topology)
Provide notice to a channel that the stream topology has changed.
Definition channel.c:11106
void ast_party_connected_line_copy(struct ast_party_connected_line *dest, const struct ast_party_connected_line *src)
Copy the source connected line information to the destination connected line.
Definition channel.c:2018
int ast_queue_control(struct ast_channel *chan, enum ast_control_frame_type control)
Queue a control frame.
Definition channel.c:1289
static int should_skip_dtmf(struct ast_channel *chan)
Determine whether or not we should ignore DTMF in the readq.
Definition channel.c:3535
int ast_setstate(struct ast_channel *chan, enum ast_channel_state state)
Change the state of a channel.
Definition channel.c:7460
void ast_deactivate_generator(struct ast_channel *chan)
Definition channel.c:2926
int ast_sendtext(struct ast_channel *chan, const char *text)
Sends text to a channel.
Definition channel.c:4866
int ast_connected_line_parse_data(const unsigned char *data, size_t datalen, struct ast_party_connected_line *connected)
Parse connected line indication frame data.
Definition channel.c:8891
int ast_check_hangup(struct ast_channel *chan)
Checks to see if a channel is needing hang up.
Definition channel.c:446
int ast_channel_is_bridged(const struct ast_channel *chan)
Determine if a channel is in a bridge.
Definition channel.c:10655
static void send_flash_event(struct ast_channel *chan)
Definition channel.c:3453
static void send_dtmf_end_event(struct ast_channel *chan, enum DtmfDirection direction, const char digit, long duration_ms)
Definition channel.c:3424
int ast_channel_connected_line_sub(struct ast_channel *autoservice_chan, struct ast_channel *sub_chan, const void *connected_info, int is_frame)
Run a connected line interception subroutine and update a channel's connected line information.
Definition channel.c:10444
int ast_indicate_data(struct ast_channel *chan, int _condition, const void *data, size_t datalen)
Indicates condition of channel, with payload.
Definition channel.c:4710
static void set_channel_answer_time(struct ast_channel *chan)
Definition channel.c:2661
static int should_trigger_dtmf_emulating(struct ast_channel *chan)
Determine whether or not we have to trigger dtmf emulating using 50 fps timer events especially when ...
Definition channel.c:2889
static int __ast_queue_frame(struct ast_channel *chan, struct ast_frame *fin, int head, struct ast_frame *after)
Definition channel.c:1041
static void send_wink_event(struct ast_channel *chan)
Definition channel.c:3458
int(* ast_timing_func_t)(const void *data)
Definition channel.h:919
struct ast_format * ast_channel_rawreadformat(struct ast_channel *chan)
#define DEBUGCHAN_FLAG
Definition channel.h:877
void * ast_channel_music_state(const struct ast_channel *chan)
unsigned int ast_channel_fin(const struct ast_channel *chan)
void * ast_channel_timingdata(const struct ast_channel *chan)
void ast_channel_dtmf_tv_set(struct ast_channel *chan, struct timeval *value)
int ast_channel_fdno(const struct ast_channel *chan)
struct ast_trans_pvt * ast_channel_readtrans(const struct ast_channel *chan)
struct ast_trans_pvt * ast_channel_writetrans(const struct ast_channel *chan)
char ast_channel_dtmf_digit_to_emulate(const struct ast_channel *chan)
struct ast_framehook_list * ast_channel_framehooks(const struct ast_channel *chan)
void ast_channel_audiohooks_set(struct ast_channel *chan, struct ast_audiohook_list *value)
@ AST_SOFTHANGUP_DEV
Definition channel.h:1141
struct ast_audiohook_list * ast_channel_audiohooks(const struct ast_channel *chan)
struct ast_stream_topology * ast_channel_get_stream_topology(const struct ast_channel *chan)
Retrieve the topology of streams on a channel.
void ast_channel_fdno_set(struct ast_channel *chan, int value)
ast_timing_func_t ast_channel_timingfunc(const struct ast_channel *chan)
void ast_channel_dtmf_digit_to_emulate_set(struct ast_channel *chan, char value)
void ast_channel_softhangup_internal_flag_add(struct ast_channel *chan, int value)
struct ast_stream * ast_channel_get_default_stream(struct ast_channel *chan, enum ast_media_type type)
Retrieve the default stream of a specific media type on a channel.
struct ast_generator * ast_channel_generator(const struct ast_channel *chan)
void ast_channel_emulate_dtmf_duration_set(struct ast_channel *chan, unsigned int value)
struct ast_frame * ast_channel_dtmff(struct ast_channel *chan)
@ AST_FLAG_ZOMBIE
Definition channel.h:1007
@ AST_FLAG_END_DTMF_ONLY
Definition channel.h:1027
@ AST_FLAG_EXCEPTION
Definition channel.h:1009
@ AST_FLAG_EMULATE_DTMF
Definition channel.h:1024
@ AST_FLAG_IN_DTMF
Definition channel.h:1021
@ AST_FLAG_DEFER_DTMF
Definition channel.h:1001
@ AST_FLAG_TIMINGDATA_IS_AO2_OBJ
Definition channel.h:1074
unsigned int ast_channel_emulate_dtmf_duration(const struct ast_channel *chan)
#define AST_JITTERBUFFER_FD
Definition channel.h:206
int ast_channel_softhangup_internal_flag(struct ast_channel *chan)
struct timeval * ast_channel_dtmf_tv(struct ast_channel *chan)
#define FRAMECOUNT_INC(x)
Definition channel.h:880
void ast_channel_hangupcause_set(struct ast_channel *chan, int value)
int ast_channel_fd_isset(const struct ast_channel *chan, int which)
struct ast_format * ast_channel_readformat(struct ast_channel *chan)
@ AST_STATE_UP
enum ast_media_type ast_format_get_type(const struct ast_format *format)
Get the media type of a format.
Definition format.c:354
enum ast_format_cmp_res ast_format_cmp(const struct ast_format *format1, const struct ast_format *format2)
Compare two formats.
Definition format.c:201
@ AST_FORMAT_CMP_EQUAL
Definition format.h:36
int ast_format_cache_is_slinear(struct ast_format *format)
Determines if a format is one of the cached slin formats.
struct ast_frame * ast_framehook_list_read_event(struct ast_framehook_list *framehooks, struct ast_frame *frame)
This is used by the channel API push a frame read event to a channel's framehook list.
Definition framehook.c:318
unsigned int option_dtmfminduration
Definition options.c:84
@ AST_FRAME_READ_ACTION_CONNECTED_LINE_MACRO
@ AST_FRAME_READ_ACTION_SEND_TEXT
@ AST_FRAME_READ_ACTION_SEND_TEXT_DATA
void ast_frame_dump(const char *name, struct ast_frame *f, char *prefix)
Definition main/frame.c:731
@ AST_FRFLAG_REQUEUED
@ AST_CONTROL_STREAM_TOPOLOGY_REQUEST_CHANGE
@ AST_CONTROL_READ_ACTION
@ AST_CONTROL_ANSWER
@ AST_CONTROL_STREAM_TOPOLOGY_CHANGED
@ AST_CONTROL_CONNECTED_LINE
@ AST_CONTROL_FLASH
struct ast_frame ast_null_frame
Definition main/frame.c:79
#define LOG_ERROR
#define LOG_DTMF
#define AST_LIST_EMPTY(head)
Checks whether the specified list contains any entries.
int ast_stream_get_position(const struct ast_stream *stream)
Get the position of the stream in the topology.
Definition stream.c:500
struct ast_stream * ast_stream_topology_get_stream(const struct ast_stream_topology *topology, unsigned int position)
Get a specific stream from the topology.
Definition stream.c:791
struct ast_frame *(*const read)(struct ast_channel *chan)
Read a frame (or chain of frames from the same stream), in standard format (see frame....
Definition channel.h:754
struct ast_frame *(*const read_stream)(struct ast_channel *chan)
Read a frame (or chain of frames from the same stream), in standard format (see frame....
Definition channel.h:767
struct ast_frame *(*const exception)(struct ast_channel *chan)
Handle an exception, reading a frame.
Definition channel.h:785
Definition of a media format.
Definition format.c:43
struct ast_format * format
union ast_frame::@235 data
void(* digit)(struct ast_channel *chan, char digit)
Definition channel.h:237
Structure used to transport a message through the frame core.
Connected Line/Party information.
Definition channel.h:458
int ast_tvzero(const struct timeval t)
Returns true if the argument is 0,0.
Definition time.h:117
int64_t ast_tvdiff_ms(struct timeval end, struct timeval start)
Computes the difference (in milliseconds) between two struct timeval instances.
Definition time.h:107
int ast_timer_ack(const struct ast_timer *handle, unsigned int quantity)
Acknowledge a timer event.
Definition timing.c:171
int ast_timer_set_rate(const struct ast_timer *handle, unsigned int rate)
Set the timing tick rate.
Definition timing.c:166
enum ast_timer_event ast_timer_get_event(const struct ast_timer *handle)
Retrieve timing event.
Definition timing.c:186
int ast_timer_disable_continuous(const struct ast_timer *handle)
Disable continuous mode.
Definition timing.c:181
ast_timer_event
Definition timing.h:57
@ AST_TIMING_EVENT_CONTINUOUS
Definition timing.h:59
@ AST_TIMING_EVENT_EXPIRED
Definition timing.h:58
struct ast_frame * ast_translate(struct ast_trans_pvt *tr, struct ast_frame *f, int consume)
translates one or more frames Apply an input frame into the translator and receive zero or one output...
Definition translate.c:623
#define ast_clear_flag(p, flag)
Definition utils.h:78
#define ast_set_flag(p, flag)
Definition utils.h:71

References __ast_queue_frame(), ast_control_read_action_payload::action, ao2_ref, AST_ALERT_READ_FATAL, ast_audiohook_detach_list(), AST_AUDIOHOOK_DIRECTION_READ, ast_audiohook_write_list(), ast_audiohook_write_list_empty(), ast_channel_alert_write(), ast_channel_audiohooks(), ast_channel_audiohooks_set(), ast_channel_connected(), ast_channel_connected_line_sub(), ast_channel_dtmf_digit_to_emulate(), ast_channel_dtmf_digit_to_emulate_set(), ast_channel_dtmf_tv(), ast_channel_dtmf_tv_set(), ast_channel_dtmff(), ast_channel_emulate_dtmf_duration(), ast_channel_emulate_dtmf_duration_set(), ast_channel_fd_isset(), ast_channel_fdno(), ast_channel_fdno_set(), ast_channel_fin(), ast_channel_fin_set(), ast_channel_flags(), ast_channel_framehooks(), ast_channel_generator(), ast_channel_get_default_stream(), ast_channel_get_stream_topology(), ast_channel_hangupcause_set(), ast_channel_internal_alert_read(), ast_channel_is_bridged(), ast_channel_lock, ast_channel_music_state(), ast_channel_name(), ast_channel_rawreadformat(), ast_channel_readformat(), ast_channel_readq(), ast_channel_readtrans(), ast_channel_softhangup_internal_flag(), ast_channel_softhangup_internal_flag_add(), ast_channel_stream_topology_changed(), ast_channel_timer(), ast_channel_timingdata(), ast_channel_timingfd(), ast_channel_timingfunc(), ast_channel_unlock, ast_channel_writetrans(), ast_check_hangup(), ast_clear_flag, ast_connected_line_parse_data(), AST_CONTROL_ANSWER, AST_CONTROL_CONNECTED_LINE, AST_CONTROL_END_OF_Q, AST_CONTROL_FLASH, AST_CONTROL_HANGUP, AST_CONTROL_READ_ACTION, AST_CONTROL_STREAM_TOPOLOGY_CHANGED, AST_CONTROL_STREAM_TOPOLOGY_REQUEST_CHANGE, AST_CONTROL_WINK, ast_deactivate_generator(), ast_debug, AST_DEFAULT_EMULATE_DTMF_DURATION, AST_FLAG_DEFER_DTMF, AST_FLAG_EMULATE_DTMF, AST_FLAG_END_DTMF_ONLY, AST_FLAG_EXCEPTION, AST_FLAG_IN_DTMF, AST_FLAG_TIMINGDATA_IS_AO2_OBJ, AST_FLAG_ZOMBIE, ast_format_cache_is_slinear(), ast_format_cmp(), AST_FORMAT_CMP_EQUAL, ast_format_get_type(), AST_FRAME_CONTROL, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, ast_frame_dump(), AST_FRAME_NULL, AST_FRAME_READ_ACTION_CONNECTED_LINE_MACRO, AST_FRAME_READ_ACTION_SEND_TEXT, AST_FRAME_READ_ACTION_SEND_TEXT_DATA, AST_FRAME_RTCP, AST_FRAME_VIDEO, AST_FRAME_VOICE, ast_framehook_list_read_event(), AST_FRFLAG_REQUEUED, ast_frfree, ast_indicate_data(), AST_JITTERBUFFER_FD, AST_LIST_EMPTY, AST_LIST_FIRST, AST_LIST_LAST, AST_LIST_NEXT, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, ast_log, AST_MIN_DTMF_GAP, ast_null_frame, ast_party_connected_line_copy(), ast_party_connected_line_free(), ast_party_connected_line_init(), ast_queue_control(), ast_queue_frame(), ast_queue_frame_head(), ast_read_generator_actions(), ast_sendtext(), ast_sendtext_data(), ast_set_flag, ast_set_read_format_path(), ast_setstate(), AST_SOFTHANGUP_DEV, AST_STATE_UP, ast_stream_get_position(), ast_stream_topology_get_stream(), ast_test_flag, ast_timer_ack(), ast_timer_disable_continuous(), ast_timer_get_event(), ast_timer_set_rate(), AST_TIMING_EVENT_CONTINUOUS, AST_TIMING_EVENT_EXPIRED, AST_TIMING_FD, ast_translate(), ast_tvdiff_ms(), ast_tvnow(), ast_tvzero(), connected, ast_frame::data, DEBUGCHAN_FLAG, digit, ast_generator::digit, done, DTMF_RECEIVED, ast_channel_tech::exception, ast_frame_subclass::format, FRAMECOUNT_INC, ast_frame::frametype, ast_frame_subclass::integer, ast_frame::len, LOG_DTMF, LOG_ERROR, LOG_WARNING, NULL, option_dtmfminduration, ast_control_read_action_payload::payload, ast_control_read_action_payload::payload_size, ast_frame::ptr, queue_dtmf_readq(), ast_channel_tech::read, ast_channel_tech::read_stream, send_dtmf_begin_event(), send_dtmf_end_event(), send_flash_event(), send_wink_event(), set_channel_answer_time(), should_skip_dtmf(), should_trigger_dtmf_emulating(), ast_frame::stream_num, ast_frame::subclass, timer, and ast_frame::uint32.

Referenced by ast_read(), ast_read_noaudio(), ast_read_stream(), and ast_read_stream_noaudio().

◆ __ast_request_and_dial()

struct ast_channel * __ast_request_and_dial ( const char *  type,
struct ast_format_cap cap,
const struct ast_assigned_ids assignedids,
const struct ast_channel requestor,
const char *  addr,
int  timeout,
int *  reason,
const char *  cid_num,
const char *  cid_name,
struct outgoing_helper oh 
)

Request a channel of a given type, with data as optional information used by the low level module and attempt to place a call on it.

Parameters
typetype of channel to request
capformat capabilities for requested channel
assignedidsUnique Id to assign to channel
requestorchannel requesting data
addrdestination of the call
timeoutmaximum amount of time to wait for an answer
reasonwhy unsuccessful (if unsuccessful)
cid_numCaller-ID Number
cid_nameCaller-ID Name (ascii)
ohOutgoing helper
Returns
Returns an ast_channel on success or no answer, NULL on failure. Check the value of chan->_state to know if the call was answered or not.

Definition at line 6033 of file channel.c.

6034{
6035 int dummy_outstate;
6036 int cause = 0;
6037 struct ast_channel *chan;
6038 int res = 0;
6039 int last_subclass = 0;
6041
6042 if (outstate)
6043 *outstate = 0;
6044 else
6045 outstate = &dummy_outstate; /* make outstate always a valid pointer */
6046
6047 chan = ast_request(type, cap, assignedids, requestor, addr, &cause);
6048 if (!chan) {
6049 ast_log(LOG_NOTICE, "Unable to request channel %s/%s\n", type, addr);
6050 handle_cause(cause, outstate);
6051 return NULL;
6052 }
6053
6054 if (oh) {
6055 if (oh->vars) {
6056 ast_channel_lock(chan);
6057 ast_set_variables(chan, oh->vars);
6058 ast_channel_unlock(chan);
6059 }
6060 if (!ast_strlen_zero(oh->cid_num) && !ast_strlen_zero(oh->cid_name)) {
6061 /*
6062 * Use the oh values instead of the function parameters for the
6063 * outgoing CallerID.
6064 */
6065 cid_num = oh->cid_num;
6066 cid_name = oh->cid_name;
6067 }
6068 if (oh->parent_channel) {
6069 /* Safely inherit variables and datastores from the parent channel. */
6075 ast_channel_unlock(chan);
6076 }
6077 if (!ast_strlen_zero(oh->account)) {
6078 ast_channel_lock(chan);
6080 ast_channel_accountcode_set(chan, oh->account);
6081 ast_channel_peeraccount_set(chan, oh->account);
6083 ast_channel_unlock(chan);
6084 }
6085 }
6086
6087 /*
6088 * It seems strange to set the CallerID on an outgoing call leg
6089 * to whom we are calling, but this function's callers are doing
6090 * various Originate methods. This call leg goes to the local
6091 * user. Once the local user answers, the dialplan needs to be
6092 * able to access the CallerID from the CALLERID function as if
6093 * the local user had placed this call.
6094 */
6095 ast_set_callerid(chan, cid_num, cid_name, cid_num);
6096
6097 ast_channel_lock(chan);
6099 ast_channel_unlock(chan);
6101 if (cid_num) {
6102 connected.id.number.valid = 1;
6103 connected.id.number.str = (char *) cid_num;
6105 }
6106 if (cid_name) {
6107 connected.id.name.valid = 1;
6108 connected.id.name.str = (char *) cid_name;
6110 }
6112 if (requestor) {
6113 ast_channel_lock_both(chan, (struct ast_channel *) requestor);
6115 ast_channel_unlock(chan);
6116 ast_channel_unlock((struct ast_channel *) requestor);
6117 }
6118
6119 if (ast_call(chan, addr, 0)) { /* ast_call failed... */
6120 ast_log(LOG_NOTICE, "Unable to call channel %s/%s\n", type, addr);
6121 } else {
6122 struct timeval start = ast_tvnow();
6123 res = 1; /* mark success in case chan->_state is already AST_STATE_UP */
6124 while (timeout && ast_channel_state(chan) != AST_STATE_UP) {
6125 struct ast_frame *f;
6126 int ms = ast_remaining_ms(start, timeout);
6127
6128 res = ast_waitfor(chan, ms);
6129 if (res == 0) { /* timeout, treat it like ringing */
6130 *outstate = AST_CONTROL_RINGING;
6131 break;
6132 }
6133 if (res < 0) /* error or done */
6134 break;
6136 if (!(chan = ast_call_forward(NULL, chan, NULL, cap, oh, outstate))) {
6137 return NULL;
6138 }
6139 continue;
6140 }
6141
6142 f = ast_read(chan);
6143 if (!f) {
6144 *outstate = AST_CONTROL_HANGUP;
6145 res = 0;
6146 break;
6147 }
6148 if (f->frametype == AST_FRAME_CONTROL) {
6149 switch (f->subclass.integer) {
6150 case AST_CONTROL_RINGING: /* record but keep going */
6151 *outstate = f->subclass.integer;
6152 break;
6153
6154 case AST_CONTROL_BUSY:
6155 *outstate = f->subclass.integer;
6156 timeout = 0;
6157 break;
6158
6160 *outstate = AST_CONTROL_CONGESTION;
6161 timeout = 0;
6162 break;
6163
6165 *outstate = f->subclass.integer;
6166 timeout = 0;
6167 break;
6168
6169 case AST_CONTROL_ANSWER:
6170 *outstate = f->subclass.integer;
6171 timeout = 0; /* trick to force exit from the while() */
6172 break;
6173
6176 break;
6177
6179 if (oh && oh->connect_on_early_media) {
6180 *outstate = f->subclass.integer;
6181 timeout = 0; /* trick to force exit from the while() */
6182 break;
6183 }
6184 /* Fallthrough */
6185 /* Ignore these */
6187 case AST_CONTROL_HOLD:
6188 case AST_CONTROL_UNHOLD:
6194 case AST_CONTROL_CC:
6195 case -1: /* Ignore -- just stopping indications */
6196 break;
6197
6198 default:
6199 ast_log(LOG_NOTICE, "Don't know what to do with control frame %d\n", f->subclass.integer);
6200 }
6201 last_subclass = f->subclass.integer;
6202 }
6203 ast_frfree(f);
6204 }
6205 }
6206
6207 /* Final fixups */
6208 if (oh) {
6209 if (!ast_strlen_zero(oh->context))
6211 if (!ast_strlen_zero(oh->exten))
6212 ast_channel_exten_set(chan, oh->exten);
6213 if (oh->priority)
6215 }
6216 if (ast_channel_state(chan) == AST_STATE_UP)
6217 *outstate = AST_CONTROL_ANSWER;
6218
6219 if (res <= 0) {
6220 ast_channel_lock(chan);
6221 if (AST_CONTROL_RINGING == last_subclass) {
6223 }
6224 ast_channel_unlock(chan);
6225 ast_hangup(chan);
6226 chan = NULL;
6227 }
6228 return chan;
6229}
#define AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED
Definition callerid.h:437
#define AST_CAUSE_NO_ANSWER
Definition causes.h:109
static const char type[]
int ast_call(struct ast_channel *chan, const char *addr, int timeout)
Make a call.
Definition channel.c:6518
static void handle_cause(int cause, int *outstate)
Definition channel.c:5906
struct ast_channel * ast_call_forward(struct ast_channel *caller, struct ast_channel *orig, int *timeout, struct ast_format_cap *cap, struct outgoing_helper *oh, int *outstate)
Forwards a call to a new channel specified by the original channel's call_forward str....
Definition channel.c:5955
void ast_hangup(struct ast_channel *chan)
Hangup a channel.
Definition channel.c:2574
void ast_channel_set_connected_line(struct ast_channel *chan, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update)
Set the connected line information in the Asterisk channel.
Definition channel.c:8414
void ast_set_variables(struct ast_channel *chan, struct ast_variable *vars)
adds a list of channel variables to a channel
Definition channel.c:8221
int ast_channel_datastore_inherit(struct ast_channel *from, struct ast_channel *to)
Inherit datastores from a parent to a child.
Definition channel.c:2359
void ast_channel_req_accountcodes(struct ast_channel *chan, const struct ast_channel *requestor, enum ast_channel_requestor_relationship relationship)
Setup new channel accountcodes from the requestor channel after ast_request().
Definition channel.c:6491
void ast_set_callerid(struct ast_channel *chan, const char *cid_num, const char *cid_name, const char *cid_ani)
Set caller ID number, name and ANI and generate AMI event.
Definition channel.c:7408
void ast_channel_inherit_variables(const struct ast_channel *parent, struct ast_channel *child)
Inherits channel variable from parent to child channel.
Definition channel.c:6833
void ast_channel_hangupcause_hash_set(struct ast_channel *chan, const struct ast_control_pvt_cause_code *cause_code, int datalen)
Sets the HANGUPCAUSE hash and optionally the SIP_CAUSE hash on the given channel.
Definition channel.c:4402
void ast_party_connected_line_set_init(struct ast_party_connected_line *init, const struct ast_party_connected_line *guide)
Initialize the given connected line structure using the given guide for a set update operation.
Definition channel.c:2032
struct ast_channel * ast_request(const char *type, struct ast_format_cap *request_cap, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *addr, int *cause)
Requests a channel.
Definition channel.c:6411
@ AST_CHANNEL_REQUESTOR_BRIDGE_PEER
Definition channel.h:1525
#define ast_channel_lock_both(chan1, chan2)
Lock two channels.
Definition channel.h:2996
@ AST_FLAG_ORIGINATED
Definition channel.h:1059
const char * ast_channel_call_forward(const struct ast_channel *chan)
@ AST_CONTROL_SRCUPDATE
@ AST_CONTROL_PROGRESS
@ AST_CONTROL_VIDUPDATE
@ AST_CONTROL_PROCEEDING
@ AST_CONTROL_REDIRECTING
@ AST_CONTROL_CONGESTION
@ AST_CONTROL_RINGING
@ AST_CONTROL_SRCCHANGE
@ AST_CONTROL_INCOMPLETE
@ AST_CONTROL_PVT_CAUSE_CODE
#define LOG_NOTICE
int ast_max_forwards_decrement(struct ast_channel *chan)
Decrement the max forwards count for a particular channel.
const char * cid_num
Definition channel.h:1129
struct ast_variable * vars
Definition channel.h:1132
int connect_on_early_media
Definition channel.h:1128
const char * account
Definition channel.h:1131
const char * cid_name
Definition channel.h:1130
const char * exten
Definition channel.h:1126
const char * context
Definition channel.h:1125
struct ast_channel * parent_channel
Definition channel.h:1133

References outgoing_helper::account, ast_call(), ast_call_forward(), AST_CAUSE_NO_ANSWER, ast_channel_call_forward(), ast_channel_connected(), ast_channel_context_set(), ast_channel_datastore_inherit(), ast_channel_exten_set(), ast_channel_flags(), ast_channel_hangupcause_hash_set(), ast_channel_hangupcause_set(), ast_channel_inherit_variables(), ast_channel_lock, ast_channel_lock_both, ast_channel_priority_set(), ast_channel_req_accountcodes(), AST_CHANNEL_REQUESTOR_BRIDGE_PEER, ast_channel_set_connected_line(), ast_channel_stage_snapshot(), ast_channel_stage_snapshot_done(), ast_channel_unlock, AST_CONTROL_ANSWER, AST_CONTROL_BUSY, AST_CONTROL_CC, AST_CONTROL_CONGESTION, AST_CONTROL_CONNECTED_LINE, AST_CONTROL_HANGUP, AST_CONTROL_HOLD, AST_CONTROL_INCOMPLETE, AST_CONTROL_PROCEEDING, AST_CONTROL_PROGRESS, AST_CONTROL_PVT_CAUSE_CODE, AST_CONTROL_REDIRECTING, AST_CONTROL_RINGING, AST_CONTROL_SRCCHANGE, AST_CONTROL_SRCUPDATE, AST_CONTROL_UNHOLD, AST_CONTROL_VIDUPDATE, AST_FLAG_ORIGINATED, AST_FRAME_CONTROL, ast_frfree, ast_hangup(), ast_log, ast_max_forwards_decrement(), ast_party_connected_line_set_init(), AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED, ast_read(), ast_remaining_ms(), ast_request(), ast_set_callerid(), ast_set_flag, ast_set_variables(), AST_STATE_UP, ast_strlen_zero(), ast_tvnow(), ast_waitfor(), outgoing_helper::cid_name, outgoing_helper::cid_num, outgoing_helper::connect_on_early_media, connected, outgoing_helper::context, ast_frame::data, ast_frame::datalen, outgoing_helper::exten, ast_frame::frametype, handle_cause(), ast_frame_subclass::integer, LOG_NOTICE, NULL, outgoing_helper::parent_channel, outgoing_helper::priority, ast_frame::ptr, ast_frame::subclass, type, and outgoing_helper::vars.

Referenced by announce_to_dial(), and ast_request_and_dial().

◆ adjust_frame_for_plc()

static void adjust_frame_for_plc ( struct ast_channel chan,
struct ast_frame frame,
struct ast_datastore datastore 
)
static

Definition at line 5110 of file channel.c.

5111{
5112 int num_new_samples = frame->samples;
5113 struct plc_ds *plc = datastore->data;
5114
5115 /* As a general note, let me explain the somewhat odd calculations used when taking
5116 * the frame offset into account here. According to documentation in frame.h, the frame's
5117 * offset field indicates the number of bytes that the audio is offset. The plc->samples_buf
5118 * is not an array of bytes, but rather an array of 16-bit integers since it holds SLIN
5119 * samples. So I had two choices to make here with the offset.
5120 *
5121 * 1. Make the offset AST_FRIENDLY_OFFSET bytes. The main downside for this is that
5122 * I can't just add AST_FRIENDLY_OFFSET to the plc->samples_buf and have the pointer
5123 * arithmetic come out right. I would have to do some odd casting or division for this to
5124 * work as I wanted.
5125 * 2. Make the offset AST_FRIENDLY_OFFSET * 2 bytes. This allows the pointer arithmetic
5126 * to work out better with the plc->samples_buf. The downside here is that the buffer's
5127 * allocation contains an extra 64 bytes of unused space.
5128 *
5129 * I decided to go with option 2. This is why in the calloc statement and the statement that
5130 * sets the frame's offset, AST_FRIENDLY_OFFSET is multiplied by 2.
5131 */
5132
5133 /* If this audio frame has no samples to fill in, ignore it */
5134 if (!num_new_samples) {
5135 return;
5136 }
5137
5138 /* First, we need to be sure that our buffer is large enough to accommodate
5139 * the samples we need to fill in. This will likely only occur on the first
5140 * frame we write.
5141 */
5142 if (plc->num_samples < num_new_samples) {
5143 ast_free(plc->samples_buf);
5144 plc->samples_buf = ast_calloc(1, (num_new_samples * sizeof(*plc->samples_buf)) + (AST_FRIENDLY_OFFSET * 2));
5145 if (!plc->samples_buf) {
5146 ast_channel_datastore_remove(chan, datastore);
5147 ast_datastore_free(datastore);
5148 return;
5149 }
5150 plc->num_samples = num_new_samples;
5151 }
5152
5153 if (frame->datalen == 0) {
5155 frame->data.ptr = plc->samples_buf + AST_FRIENDLY_OFFSET;
5156 frame->datalen = num_new_samples * 2;
5157 frame->offset = AST_FRIENDLY_OFFSET * 2;
5158 } else {
5159 plc_rx(&plc->plc_state, frame->data.ptr, frame->samples);
5160 }
5161}
#define ast_free(a)
Definition astmm.h:180
#define ast_calloc(num, len)
A wrapper for calloc()
Definition astmm.h:202
int ast_channel_datastore_remove(struct ast_channel *chan, struct ast_datastore *datastore)
Remove a datastore from a channel.
Definition channel.c:2385
int ast_datastore_free(struct ast_datastore *datastore)
Free a data store object.
Definition datastore.c:68
#define AST_FRIENDLY_OFFSET
Offset into a frame's data buffer.
int plc_fillin(plc_state_t *s, int16_t amp[], int len)
Fill-in a block of missing audio samples.
Definition plc.c:175
int plc_rx(plc_state_t *s, int16_t amp[], int len)
Process a block of received audio samples.
Definition plc.c:132
void * data
Definition datastore.h:66
int16_t * samples_buf
Definition channel.c:5090
size_t num_samples
Definition channel.c:5094
plc_state_t plc_state
Definition channel.c:5095

References ast_calloc, ast_channel_datastore_remove(), ast_datastore_free(), ast_free, AST_FRIENDLY_OFFSET, ast_datastore::data, ast_frame::data, ast_frame::datalen, plc_ds::num_samples, ast_frame::offset, plc_fillin(), plc_rx(), plc_ds::plc_state, ast_frame::ptr, ast_frame::samples, and plc_ds::samples_buf.

Referenced by apply_plc().

◆ apply_plc()

static void apply_plc ( struct ast_channel chan,
struct ast_frame frame 
)
static

Definition at line 5163 of file channel.c.

5164{
5165 struct ast_datastore *datastore;
5166 struct plc_ds *plc;
5167
5168 datastore = ast_channel_datastore_find(chan, &plc_ds_info, NULL);
5169 if (datastore) {
5170 plc = datastore->data;
5171 adjust_frame_for_plc(chan, frame, datastore);
5172 return;
5173 }
5174
5175 datastore = ast_datastore_alloc(&plc_ds_info, NULL);
5176 if (!datastore) {
5177 return;
5178 }
5179 plc = ast_calloc(1, sizeof(*plc));
5180 if (!plc) {
5181 ast_datastore_free(datastore);
5182 return;
5183 }
5184 datastore->data = plc;
5185 ast_channel_datastore_add(chan, datastore);
5186 adjust_frame_for_plc(chan, frame, datastore);
5187}
int ast_channel_datastore_add(struct ast_channel *chan, struct ast_datastore *datastore)
Add a datastore to a channel.
Definition channel.c:2376
static const struct ast_datastore_info plc_ds_info
Definition channel.c:5105
static void adjust_frame_for_plc(struct ast_channel *chan, struct ast_frame *frame, struct ast_datastore *datastore)
Definition channel.c:5110
struct ast_datastore * ast_channel_datastore_find(struct ast_channel *chan, const struct ast_datastore_info *info, const char *uid)
Find a datastore on a channel.
Definition channel.c:2390
#define ast_datastore_alloc(info, uid)
Definition datastore.h:85
Structure for a data store object.
Definition datastore.h:64

References adjust_frame_for_plc(), ast_calloc, ast_channel_datastore_add(), ast_channel_datastore_find(), ast_datastore_alloc, ast_datastore_free(), ast_datastore::data, NULL, and plc_ds_info.

Referenced by ast_write_stream().

◆ ast_activate_generator()

int ast_activate_generator ( struct ast_channel chan,
struct ast_generator gen,
void *  params 
)

Activate a given generator

Definition at line 2989 of file channel.c.

2990{
2991 int res = 0;
2992 void *generatordata = NULL;
2993
2994 ast_channel_lock(chan);
2995 if (ast_channel_generatordata(chan)) {
2996 struct ast_generator *generator_old = ast_channel_generator(chan);
2997
2998 if (generator_old && generator_old->release) {
2999 generator_old->release(chan, ast_channel_generatordata(chan));
3000 }
3001 }
3002 if (gen->alloc && !(generatordata = gen->alloc(chan, params))) {
3003 res = -1;
3004 }
3005 ast_channel_generatordata_set(chan, generatordata);
3006 if (!res) {
3007 ast_settimeout(chan, 50, generator_force, chan);
3009 }
3010 ast_channel_unlock(chan);
3011
3012 ast_prod(chan);
3013
3014 return res;
3015}
static struct ast_generator gen
int ast_prod(struct ast_channel *chan)
Send empty audio to prime a channel driver.
Definition channel.c:5057
static int generator_force(const void *data)
Definition channel.c:2954
int ast_settimeout(struct ast_channel *c, unsigned int rate, int(*func)(const void *data), void *data)
Enable or disable timer ticks for a channel.
Definition channel.c:3218
void ast_channel_generator_set(struct ast_channel *chan, struct ast_generator *value)
void ast_channel_generatordata_set(struct ast_channel *chan, void *value)
void * ast_channel_generatordata(const struct ast_channel *chan)
void *(* alloc)(struct ast_channel *chan, void *params)
Definition channel.h:228
void(* release)(struct ast_channel *chan, void *data)
Definition channel.h:230

References ast_generator::alloc, ast_channel_generator(), ast_channel_generator_set(), ast_channel_generatordata(), ast_channel_generatordata_set(), ast_channel_lock, ast_channel_unlock, ast_prod(), ast_settimeout(), gen, generator_force(), ast_channel::generatordata, NULL, and ast_generator::release.

Referenced by app_exec(), ast_channel_start_silence_generator(), ast_linear_stream(), ast_playtones_start(), ast_tonepair_start(), channel_spy(), do_broadcast(), eivr_comm(), local_ast_moh_start(), old_milliwatt_exec(), and spandsp_fax_gateway_start().

◆ ast_active_channels()

int ast_active_channels ( void  )

returns number of active/allocated channels

Returns
number of channels available for lookup

Definition at line 500 of file channel.c.

501{
503}
static int active_channels(struct ast_channelstorage_instance *driver, int rdlock)
returns number of active/allocated channels

References active_channels(), CHANNELSTORAGE_API, and current_channel_storage_instance.

Referenced by action_corestatus(), ast_var_channels(), ast_var_channels_table(), dahdi_restart(), handle_chanlist(), handle_show_settings(), and really_quit().

◆ ast_answer()

int ast_answer ( struct ast_channel chan)

Answer a channel.

Parameters
chanchannel to answer

This function answers a channel and handles all necessary call setup functions.

Note
The channel passed does not need to be locked, but is locked by the function when needed.
This function will wait up to 500 milliseconds for media to arrive on the channel before returning to the caller, so that the caller can properly assume the channel is 'ready' for media flow.
Return values
0on success
non-zeroon failure

Definition at line 2839 of file channel.c.

2840{
2841 SCOPE_TRACE(1, "%s\n", ast_channel_name(chan));
2842 return __ast_answer(chan, 0);
2843}
int __ast_answer(struct ast_channel *chan, unsigned int delay)
Answer a channel, with a selectable delay before returning.
Definition channel.c:2729

References __ast_answer(), ast_channel_name(), and SCOPE_TRACE.

Referenced by agent_login_exec(), agi_exec_full(), alarmreceiver_exec(), announce_request(), app_exec(), app_exec(), ast_auto_answer(), ast_bridge_add_channel(), ast_do_pickup(), ast_pickup_call(), auth_exec(), background_detect_exec(), bridge_channel_handle_control(), bridge_parking_push(), bridgeadd_exec(), bridgewait_exec(), common_exec(), conf_exec(), conf_start_record(), confbridge_exec(), count_exec(), dial_exec_full(), dictate_exec(), directory_exec(), disa_exec(), eivr_comm(), handle_answer(), leave_voicemail(), local_call(), media_request_helper(), minivm_accmess_exec(), minivm_greet_exec(), minivm_record_exec(), old_milliwatt_exec(), park_app_exec(), parked_call_app_exec(), pbx_builtin_background(), playback_exec(), privacy_exec(), read_exec(), readexten_exec(), receivefax_exec(), record_exec(), sayunixtime_exec(), send_waveform_to_channel(), sendfax_exec(), setup_privacy_args(), skel_exec(), sla_station_exec(), speech_background(), testclient_exec(), testserver_exec(), vm_exec(), vm_execmain(), vm_playmsgexec(), waitfor_exec(), and zapateller_exec().

◆ ast_auto_answer()

int ast_auto_answer ( struct ast_channel chan)
inline

Answer a channel, if it's not already answered.

Parameters
chanchannel to answer

See ast_answer()

Return values
0on success
non-zeroon failure

Definition at line 2845 of file channel.c.

2846{
2847 if (ast_channel_state(chan) == AST_STATE_UP) {
2848 /* Already answered */
2849 return 0;
2850 }
2851 return ast_answer(chan);
2852}
int ast_answer(struct ast_channel *chan)
Answer a channel.
Definition channel.c:2839

References ast_answer(), and AST_STATE_UP.

Referenced by record_file(), and senddtmf_exec().

◆ ast_call()

int ast_call ( struct ast_channel chan,
const char *  addr,
int  timeout 
)

Make a call.

Note
Absolutely NO channel locks should be held before calling this function.
Parameters
chanwhich channel to make the call on
addrdestination of the call
timeouttime to wait on for connect (Doesn't seem to be used.)

Place a call, take no longer than timeout ms.

Return values
0on success
-1on failure

Definition at line 6518 of file channel.c.

6519{
6520 /* Place an outgoing call, but don't wait any longer than timeout ms before returning.
6521 If the remote end does not answer within the timeout, then do NOT hang up, but
6522 return anyway. */
6523 int res = -1;
6524 /* Stop if we're a zombie or need a soft hangup */
6525 ast_channel_lock(chan);
6527 if (ast_channel_tech(chan)->call)
6528 res = ast_channel_tech(chan)->call(chan, addr, timeout);
6530 }
6531 ast_channel_unlock(chan);
6532 return res;
6533}
static int call(void *data)
@ AST_FLAG_OUTGOING
Definition channel.h:1019
int(*const call)(struct ast_channel *chan, const char *addr, int timeout)
Make a call.
Definition channel.h:721

References ast_channel_flags(), ast_channel_lock, ast_channel_unlock, ast_check_hangup(), AST_FLAG_OUTGOING, AST_FLAG_ZOMBIE, ast_set_flag, ast_test_flag, call(), and ast_channel_tech::call.

Referenced by __ast_request_and_dial(), app_control_dial(), ast_call_forward(), attended_transfer_bridge(), begin_dial_channel(), blind_transfer_bridge(), dial_exec_full(), do_forward(), feature_attended_transfer(), findmeexec(), park_local_transfer(), retransfer_enter(), ring_entry(), and wait_for_answer().

◆ ast_call_forward()

struct ast_channel * ast_call_forward ( struct ast_channel caller,
struct ast_channel orig,
int *  timeout,
struct ast_format_cap cap,
struct outgoing_helper oh,
int *  outstate 
)

Forwards a call to a new channel specified by the original channel's call_forward str. If possible, the new forwarded channel is created and returned while the original one is terminated.

Parameters
callerin channel that requested orig
origchannel being replaced by the call forward channel
timeoutmaximum amount of time to wait for setup of new forward channel
capformat capabilities for requested channel
ohoutgoing helper used with original channel
outstatereason why unsuccessful (if unsuccessful)
Returns
Returns the forwarded call's ast_channel on success or NULL on failure

Definition at line 5955 of file channel.c.

5956{
5957 char tmpchan[256];
5958 char forwarder[AST_CHANNEL_NAME];
5959 struct ast_channel *new_chan = NULL;
5960 char *data, *type;
5961 int cause = 0;
5962 int res;
5963
5964 /* gather data and request the new forward channel */
5965 ast_copy_string(tmpchan, ast_channel_call_forward(orig), sizeof(tmpchan));
5966 ast_copy_string(forwarder, ast_channel_name(orig), sizeof(forwarder));
5967 if ((data = strchr(tmpchan, '/'))) {
5968 *data++ = '\0';
5969 type = tmpchan;
5970 } else {
5971 const char *forward_context;
5972 ast_channel_lock(orig);
5973 forward_context = pbx_builtin_getvar_helper(orig, "FORWARD_CONTEXT");
5974 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", ast_channel_call_forward(orig), S_OR(forward_context, ast_channel_context(orig)));
5975 ast_channel_unlock(orig);
5976 data = tmpchan;
5977 type = "Local";
5978 }
5979 if (!(new_chan = ast_request(type, cap, NULL, orig, data, &cause))) {
5980 ast_log(LOG_NOTICE, "Unable to create channel for call forward to '%s/%s' (cause = %d)\n", type, data, cause);
5981 handle_cause(cause, outstate);
5982 ast_hangup(orig);
5983 return NULL;
5984 }
5985
5986 /* Copy/inherit important information into new channel */
5987 if (oh) {
5988 if (oh->vars) {
5989 ast_channel_lock(new_chan);
5990 ast_set_variables(new_chan, oh->vars);
5991 ast_channel_unlock(new_chan);
5992 }
5993 if (oh->parent_channel) {
5994 call_forward_inherit(new_chan, oh->parent_channel, orig);
5995 }
5996 if (!ast_strlen_zero(oh->account)) {
5997 ast_channel_lock(new_chan);
5999 ast_channel_accountcode_set(new_chan, oh->account);
6000 ast_channel_peeraccount_set(new_chan, oh->account);
6002 ast_channel_unlock(new_chan);
6003 }
6004 } else if (caller) { /* no outgoing helper so use caller if available */
6005 call_forward_inherit(new_chan, caller, orig);
6006 }
6007
6008 ast_channel_lock_both(orig, new_chan);
6010 pbx_builtin_setvar_helper(new_chan, "FORWARDERNAME", forwarder);
6014 ast_channel_unlock(new_chan);
6015 ast_channel_unlock(orig);
6016
6017 /* call new channel */
6018 res = ast_call(new_chan, data, 0);
6019 if (timeout) {
6020 *timeout = res;
6021 }
6022 if (res) {
6023 ast_log(LOG_NOTICE, "Unable to call forward to channel %s/%s\n", type, (char *)data);
6024 ast_hangup(orig);
6025 ast_hangup(new_chan);
6026 return NULL;
6027 }
6028 ast_hangup(orig);
6029
6030 return new_chan;
6031}
static void call_forward_inherit(struct ast_channel *new_chan, struct ast_channel *parent, struct ast_channel *orig)
Definition channel.c:5927
void ast_channel_set_flag(struct ast_channel *chan, unsigned int flag)
Set a flag on a channel.
Definition channel.c:11137
void ast_party_redirecting_copy(struct ast_party_redirecting *dest, const struct ast_party_redirecting *src)
Copy the source redirecting information to the destination redirecting.
Definition channel.c:2122
@ AST_CHANNEL_REQUESTOR_REPLACEMENT
Definition channel.h:1527
const char * ast_channel_context(const struct ast_channel *chan)
#define AST_CHANNEL_NAME
Definition channel.h:173
const char * pbx_builtin_getvar_helper(struct ast_channel *chan, const char *name)
Return a pointer to the value of the corresponding channel variable.
int pbx_builtin_setvar_helper(struct ast_channel *chan, const char *name, const char *value)
Add a variable to the channel variable stack, removing the most recently set value for the same name.
void ast_copy_string(char *dst, const char *src, size_t size)
Size-limited null-terminating string copy.
Definition strings.h:425
const char * data
struct ast_party_caller caller
Channel Caller ID information.

References outgoing_helper::account, ast_call(), ast_channel_call_forward(), ast_channel_connected(), ast_channel_context(), ast_channel_lock, ast_channel_lock_both, AST_CHANNEL_NAME, ast_channel_name(), ast_channel_redirecting(), ast_channel_req_accountcodes(), AST_CHANNEL_REQUESTOR_REPLACEMENT, ast_channel_set_flag(), ast_channel_stage_snapshot(), ast_channel_stage_snapshot_done(), ast_channel_unlock, ast_copy_string(), AST_FLAG_ORIGINATED, ast_hangup(), ast_log, ast_party_connected_line_copy(), ast_party_redirecting_copy(), ast_request(), ast_set_variables(), ast_strlen_zero(), call_forward_inherit(), ast_channel::caller, ast_channel::data, handle_cause(), LOG_NOTICE, NULL, outgoing_helper::parent_channel, pbx_builtin_getvar_helper(), pbx_builtin_setvar_helper(), S_OR, type, and outgoing_helper::vars.

Referenced by __ast_request_and_dial().

◆ ast_cause2str()

const char * ast_cause2str ( int  cause)

Gives the string form of a given hangup cause.

Gives the string form of a given cause code.

Definition at line 613 of file channel.c.

614{
615 int x;
616
617 for (x = 0; x < ARRAY_LEN(causes); x++) {
618 if (causes[x].cause == cause)
619 return causes[x].desc;
620 }
621
622 return "Unknown";
623}
static const struct causes_map causes[]
Definition channel.c:137
const char * desc
Definition channel.c:134
#define ARRAY_LEN(a)
Definition utils.h:706

References ARRAY_LEN, causes, and causes_map::desc.

Referenced by _websocket_request_hangup(), bridge_dissolve(), channel_destroyed_event(), channel_state_change(), dial_exec_full(), findmeexec(), hangupcause_read(), and rfc3326_add_reason_header().

◆ ast_change_name()

void ast_change_name ( struct ast_channel chan,
const char *  newname 
)

Change channel name.

Precondition
Absolutely all channels and the channel storage backend MUST be unlocked before calling this function.
Parameters
chanthe channel to change the name of
newnamethe name to change to
Note
this function must NEVER be used when any channels or the channel storage backend are locked regardless if it is the channel who's name is being changed or not because it invalidates our channel container locking order... lock container first, then the individual channels, never the other way around.

Definition at line 6821 of file channel.c.

6822{
6823 /* We must re-link, as the hash value will change here. */
6825 ast_channel_lock(chan);
6827 __ast_change_name_nolink(chan, newname);
6829 ast_channel_unlock(chan);
6831}
static void __ast_change_name_nolink(struct ast_channel *chan, const char *newname)
this function simply changes the name of the channel and issues a manager_event with out unlinking an...
Definition channel.c:6799
#define remove

References __ast_change_name_nolink(), ast_channel_lock, ast_channel_unlock, CHANNELSTORAGE_API, current_channel_storage_instance, and remove.

◆ ast_channel_amaflags2string()

const char * ast_channel_amaflags2string ( enum ama_flags  flags)

Convert the enum representation of an AMA flag to a string representation.

Since
12
Parameters
flagsinteger flag
Return values
Astring representation of the flag

Definition at line 4429 of file channel.c.

4430{
4431 switch (flag) {
4432 case AST_AMA_OMIT:
4433 return "OMIT";
4434 case AST_AMA_BILLING:
4435 return "BILLING";
4437 return "DOCUMENTATION";
4438 default:
4439 return "Unknown";
4440 }
4441}
@ AST_AMA_DOCUMENTATION
Definition channel.h:1201
@ AST_AMA_OMIT
Definition channel.h:1199
@ AST_AMA_BILLING
Definition channel.h:1200
long int flag
Definition f2c.h:83

References AST_AMA_BILLING, AST_AMA_DOCUMENTATION, and AST_AMA_OMIT.

Referenced by ast_cdr_format_var(), beanstalk_put(), build_csv_record(), build_radius_record(), build_radius_record(), cdr_read_callback(), cel_bs_put(), format_amaflags(), handle_cli_ooh323_show_config(), handle_cli_ooh323_show_peer(), handle_cli_ooh323_show_user(), manager_log(), manager_log(), tds_log(), and tds_log().

◆ ast_channel_bridge_peer()

struct ast_channel * ast_channel_bridge_peer ( struct ast_channel chan)

Get the channel's bridge peer only if the bridge is two-party.

Since
12.0.0
Parameters
chanChannel desiring the bridge peer channel.
Note
The returned peer channel is the current peer in the bridge when called.
Absolutely NO channel locks should be held when calling this function.
Return values
NULLChannel not in a bridge or the bridge is not two-party.
non-NULLReffed peer channel at time of calling.

Definition at line 10674 of file channel.c.

10675{
10676 struct ast_channel *peer;
10677 struct ast_bridge *bridge;
10678
10679 /* Get the bridge the channel is in. */
10680 ast_channel_lock(chan);
10681 bridge = ast_channel_get_bridge(chan);
10682 ast_channel_unlock(chan);
10683 if (!bridge) {
10684 return NULL;
10685 }
10686
10687 peer = ast_bridge_peer(bridge, chan);
10688 ao2_ref(bridge, -1);
10689 return peer;
10690}
struct ast_channel * ast_bridge_peer(struct ast_bridge *bridge, struct ast_channel *chan)
Get the channel's bridge peer only if the bridge is two-party.
Definition bridge.c:4154
struct ast_bridge * ast_channel_get_bridge(const struct ast_channel *chan)
Get the bridge associated with a channel.
Definition channel.c:10644
Structure that contains information about a bridge.
Definition bridge.h:353

References ao2_ref, ast_bridge_peer(), ast_channel_get_bridge(), ast_channel_lock, ast_channel_unlock, and NULL.

Referenced by analog_ss_thread(), ast_rtp_instance_set_stats_vars(), ast_set_hangupsource(), ast_unreal_queryoption(), ast_var_channels_table(), attach_barge(), attach_barge(), channel_do_masquerade(), create_jb(), fax_detect_framehook(), fax_gateway_framehook(), func_channel_read(), handle_incoming_request(), manager_park(), my_get_sigpvt_bridged_channel(), and spandsp_fax_gateway_start().

◆ ast_channel_callback()

struct ast_channel * ast_channel_callback ( ao2_callback_data_fn cb_fn,
void *  arg,
void *  data,
int  ao2_flags 
)

Call a function with every active channel.

Channel search functions

Warning
Absolutely NO channel locks should be held while calling any of these functions.

This function executes a callback one time for each active channel on the system. The channel is provided as an argument to the function.

Since
1.8

Definition at line 1336 of file channel.c.

1338{
1340 return NULL;
1341 }
1342 if (!cb_fn) {
1343 ast_log(LOG_ERROR, "callback function must be provided\n");
1344 return NULL;
1345 }
1346 return CHANNELSTORAGE_API(current_channel_storage_instance, callback, cb_fn, arg, data, ao2_flags, 1);
1347}
static struct ast_channel * callback(struct ast_channelstorage_instance *driver, ao2_callback_data_fn *cb_fn, void *arg, void *data, int ao2_flags, int rdlock)

References ast_log, callback(), CHANNELSTORAGE_API, current_channel_storage_instance, ast_channel::data, LOG_ERROR, and NULL.

Referenced by ast_pickup_find_by_group(), ast_softhangup_all(), find_by_channel(), find_by_part(), handle_core_set_debug_channel(), and pickup_by_mark().

◆ ast_channel_cc_params_init()

int ast_channel_cc_params_init ( struct ast_channel chan,
const struct ast_cc_config_params base_params 
)

Set up datastore with CCSS parameters for a channel.

Since
1.8
Note
If base_params is NULL, the channel will get the default values for all CCSS parameters.

This function makes use of datastore operations on the channel, so it is important to lock the channel before calling this function.

Warning
You should call this function only if ast_cc_is_enabled() returns true.
Parameters
chanThe channel to create the datastore on
base_paramsCCSS parameters we wish to copy into the channel
Return values
0Success
-1Failure or CCSS is globally disabled.

Definition at line 10557 of file channel.c.

10559{
10560 struct ast_cc_config_params *cc_params;
10561 struct ast_datastore *cc_datastore;
10562
10563 if (!(cc_params = ast_cc_config_params_init())) {
10564 return -1;
10565 }
10566
10567 if (!(cc_datastore = ast_datastore_alloc(&cc_channel_datastore_info, NULL))) {
10569 return -1;
10570 }
10571
10572 if (base_params) {
10573 ast_cc_copy_config_params(cc_params, base_params);
10574 }
10575 cc_datastore->data = cc_params;
10576 ast_channel_datastore_add(chan, cc_datastore);
10577 return 0;
10578}
#define ast_cc_config_params_init()
Allocate and initialize an ast_cc_config_params structure.
Definition ccss.h:135
void ast_cc_config_params_destroy(struct ast_cc_config_params *params)
Free memory from CCSS configuration params.
Definition ccss.c:714
void ast_cc_copy_config_params(struct ast_cc_config_params *dest, const struct ast_cc_config_params *src)
copy CCSS configuration parameters from one structure to another
Definition ccss.c:876
static const struct ast_datastore_info cc_channel_datastore_info
Definition channel.c:10551

References ast_cc_config_params_destroy(), ast_cc_config_params_init, ast_cc_copy_config_params(), ast_channel_datastore_add(), ast_datastore_alloc, cc_channel_datastore_info, ast_datastore::data, and NULL.

Referenced by ast_channel_get_cc_config_params(), ast_unreal_call_setup(), ast_unreal_new_channels(), and dahdi_new().

◆ ast_channel_clear_flag()

void ast_channel_clear_flag ( struct ast_channel chan,
unsigned int  flag 
)

Clear a flag on a channel.

Since
13.17.0
Parameters
chanThe channel to clear the flag from
flagThe flag to clear
Note
This will lock the channel internally. If the channel is already locked it is still safe to call.

Definition at line 11144 of file channel.c.

11145{
11146 ast_channel_lock(chan);
11148 ast_channel_unlock(chan);
11149}

References ast_channel_flags(), ast_channel_lock, ast_channel_unlock, and ast_clear_flag.

Referenced by action_redirect(), ast_bridge_setup_after_goto(), ast_channel_undefer_dtmf(), ast_waitfordigit_full(), bridge_channel_internal_pull(), channel_spy(), common_exec(), dial_exec_full(), disa_exec(), do_broadcast(), handle_exec(), and waitstream_core().

◆ ast_channel_clear_softhangup()

void ast_channel_clear_softhangup ( struct ast_channel chan,
int  flag 
)

Clear a set of softhangup flags from a channel.

Never clear a softhangup flag from a channel directly. Instead, use this function. This ensures that all aspects of the softhangup process are aborted.

Parameters
chanthe channel to clear the flag on
flagthe flag or flags to clear

Definition at line 2423 of file channel.c.

2424{
2425 ast_channel_lock(chan);
2426
2428
2430 struct ast_frame *fr;
2431
2432 /* If we have completely cleared the softhangup flag,
2433 * then we need to fully abort the hangup process. This requires
2434 * pulling the END_OF_Q frame out of the channel frame queue if it
2435 * still happens to be there. */
2436
2437 fr = AST_LIST_LAST(ast_channel_readq(chan));
2438 if (fr && fr->frametype == AST_FRAME_CONTROL &&
2441 ast_frfree(fr);
2442 }
2443 }
2444
2445 ast_channel_unlock(chan);
2446}
void ast_channel_softhangup_internal_flag_clear(struct ast_channel *chan, int value)

References ast_channel_lock, ast_channel_readq(), ast_channel_softhangup_internal_flag(), ast_channel_softhangup_internal_flag_clear(), ast_channel_unlock, AST_CONTROL_END_OF_Q, AST_FRAME_CONTROL, ast_frfree, AST_LIST_LAST, AST_LIST_REMOVE, ast_frame::frametype, ast_frame_subclass::integer, and ast_frame::subclass.

Referenced by __ast_pbx_run(), ast_bridge_setup_after_goto(), chan_cleanup(), collect_digits(), gosub_run(), and stasis_app_exec().

◆ ast_channel_close_storage()

void ast_channel_close_storage ( void  )

Definition at line 8040 of file channel.c.

8041{
8043}
void ast_channelstorage_close(struct ast_channelstorage_instance *storage_instance)

References ast_channelstorage_close(), and current_channel_storage_instance.

◆ ast_channel_cmpwhentohangup_tv()

int ast_channel_cmpwhentohangup_tv ( struct ast_channel chan,
struct timeval  offset 
)

Compare a offset with when to hangup channel.

Compare a offset with the settings of when to hang a channel up.

Definition at line 524 of file channel.c.

525{
526 struct timeval whentohangup;
527
529 return ast_tvzero(offset) ? 0 : -1;
530
531 if (ast_tvzero(offset))
532 return 1;
533
534 whentohangup = ast_tvadd(offset, ast_tvnow());
535
536 return ast_tvdiff_ms(whentohangup, *ast_channel_whentohangup(chan));
537}
struct timeval * ast_channel_whentohangup(struct ast_channel *chan)
struct timeval ast_tvadd(struct timeval a, struct timeval b)
Returns the sum of two timevals a + b.
Definition extconf.c:2280

References ast_channel_whentohangup(), ast_tvadd(), ast_tvdiff_ms(), ast_tvnow(), and ast_tvzero().

◆ ast_channel_connected_line_sub()

int ast_channel_connected_line_sub ( struct ast_channel autoservice_chan,
struct ast_channel sub_chan,
const void *  connected_info,
int  frame 
)

Run a connected line interception subroutine and update a channel's connected line information.

Since
11

Whenever we want to update a channel's connected line information, we may need to run a subroutine so that an administrator can manipulate the information before sending it out. This function both runs the subroutine specified by CONNECTED_LINE_SEND_SUB and sends the update to the channel.

Parameters
autoservice_chanChannel to place into autoservice while the sub is running. It is perfectly safe for this to be NULL
sub_chanThe channel to run the subroutine on. Also the channel from which we determine which subroutine we need to run.
connected_infoEither an ast_party_connected_line or ast_frame pointer of type AST_CONTROL_CONNECTED_LINE
frameIf true, then connected_info is an ast_frame pointer, otherwise it is an ast_party_connected_line pointer.
Return values
0Success
-1Either the subroutine does not exist, or there was an error while attempting to run the subroutine

Definition at line 10444 of file channel.c.

10445{
10446 const char *sub;
10447 const char *sub_args;
10448 int retval;
10449
10450 ast_channel_lock(sub_chan);
10451 sub = pbx_builtin_getvar_helper(sub_chan, "CONNECTED_LINE_SEND_SUB");
10452 sub = ast_strdupa(S_OR(sub, ""));
10453 sub_args = pbx_builtin_getvar_helper(sub_chan, "CONNECTED_LINE_SEND_SUB_ARGS");
10454 sub_args = ast_strdupa(S_OR(sub_args, ""));
10455
10456 if (ast_strlen_zero(sub)) {
10457 ast_channel_unlock(sub_chan);
10458 return -1;
10459 }
10460
10461 if (is_frame) {
10462 const struct ast_frame *frame = connected_info;
10463
10465 } else {
10466 const struct ast_party_connected_line *connected = connected_info;
10467
10469 }
10470 ast_channel_unlock(sub_chan);
10471
10473 retval = ast_app_run_sub(autoservice_chan, sub_chan, sub, sub_args, 0);
10475 if (!retval) {
10476 struct ast_party_connected_line saved_connected;
10477
10478 ast_party_connected_line_init(&saved_connected);
10479 ast_channel_lock(sub_chan);
10480 ast_party_connected_line_copy(&saved_connected, ast_channel_connected(sub_chan));
10481 ast_channel_unlock(sub_chan);
10482 ast_channel_update_connected_line(sub_chan, &saved_connected, NULL);
10483 ast_party_connected_line_free(&saved_connected);
10484 }
10485
10486 return retval;
10487}
void ast_channel_update_connected_line(struct ast_channel *chan, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update)
Indicate that the connected line information has changed.
Definition channel.c:9199
static void channel_set_intercept_mode(int in_intercept_mode)
Definition channel.c:10428
int ast_app_run_sub(struct ast_channel *autoservice_chan, struct ast_channel *sub_chan, const char *sub_location, const char *sub_args, int ignore_hangup)
Run a subroutine on a channel, placing an optional second channel into autoservice.
Definition main/app.c:328
static struct stasis_subscription * sub
Statsd channel stats. Exmaple of how to subscribe to Stasis events.

References ast_app_run_sub(), ast_channel_connected(), ast_channel_lock, ast_channel_unlock, ast_channel_update_connected_line(), ast_connected_line_parse_data(), ast_party_connected_line_copy(), ast_party_connected_line_free(), ast_party_connected_line_init(), ast_strdupa, ast_strlen_zero(), channel_set_intercept_mode(), connected, ast_frame::data, ast_frame::datalen, NULL, pbx_builtin_getvar_helper(), ast_frame::ptr, S_OR, and sub.

Referenced by __ast_read(), app_exec(), ast_do_pickup(), bridge_channel_handle_control(), dial_exec_full(), handle_frame(), update_connected_line_from_peer(), update_connected_line_from_peer(), wait_for_answer(), and wait_for_answer().

◆ ast_channel_datastore_add()

int ast_channel_datastore_add ( struct ast_channel chan,
struct ast_datastore datastore 
)

Add a datastore to a channel.

Note
The channel should be locked before calling this function.
Return values
0success
non-zerofailure

Definition at line 2376 of file channel.c.

2377{
2378 int res = 0;
2379
2380 AST_LIST_INSERT_HEAD(ast_channel_datastores(chan), datastore, entry);
2381
2382 return res;
2383}

References ast_channel_datastores(), AST_LIST_INSERT_HEAD, and ast_datastore::entry.

Referenced by __after_bridge_set_goto(), acf_curlopt_write(), acf_iaxvar_write(), acf_odbc_read(), add_eprofile_to_channel(), add_features_datastore(), add_inheritable_header(), add_masquerade_store(), add_to_agi(), after_bridge_cb_setup(), apply_plc(), ast_cel_fabricate_channel_from_event(), ast_channel_cc_params_init(), ast_channel_suppress(), ast_do_pickup(), ast_iax2_new(), ast_jb_create_framehook(), ast_setup_cc_recall_datastore(), ast_stir_shaken_add_result_to_channel(), attach_framehook(), audiohook_volume_get(), authenticate_reply(), bridge_channel_impart_add(), bridge_features_ds_set_full(), calendar_query_exec(), cc_interfaces_datastore_init(), chan_cleanup(), channel_feature_hooks_set_full(), command_prestart_queue_command(), create_msg_q_chan(), create_parked_subscription_full(), create_transaction(), detect_write(), dial_exec_full(), dial_masquerade_datastore_add(), do_notify(), dtmfstore_exec(), dundi_query_read(), enable_jack_hook(), enum_query_read(), find_or_create_details(), frame_drop_helper(), frame_trace_helper(), func_channel_write_real(), func_confbridge_helper(), func_write_attestation(), geoloc_profile_write(), get_feature_ds(), get_lock(), get_replace_channel_store(), gosub_exec(), handle_remb_set(), init_hook(), lua_get_state(), max_forwards_datastore_alloc(), msg_datastore_find_or_create(), pitchshift_helper(), raise_exception(), record_exec(), save_dialstring(), scramble_write(), set_hold_intercept(), set_internal_datastore(), set_talk_detect(), set_timeout(), setup_async_playback_datastore(), setup_bridge_roles_datastore(), setup_mixmonitor_ds(), setup_park_common_datastore(), shared_write(), smdi_msg_retrieve_read(), socket_process_helper(), speech_create(), speex_write(), srv_datastore_setup(), stasis_app_broadcast_channel(), stasis_app_channel_set_stasis_end_published(), t38_attach_framehook(), unicast_rtp_request(), and volume_write().

◆ ast_channel_datastore_find()

struct ast_datastore * ast_channel_datastore_find ( struct ast_channel chan,
const struct ast_datastore_info info,
const char *  uid 
)

Find a datastore on a channel.

Note
The channel should be locked before calling this function.
The datastore returned from this function must not be used if the reference to the channel is released.
Return values
pointerto the datastore if found
NULLif not found

Definition at line 2390 of file channel.c.

2391{
2392 struct ast_datastore *datastore = NULL;
2393
2394 if (info == NULL)
2395 return NULL;
2396
2398 if (datastore->info != info) {
2399 continue;
2400 }
2401
2402 if (uid == NULL) {
2403 /* matched by type only */
2404 break;
2405 }
2406
2407 if ((datastore->uid != NULL) && !strcasecmp(uid, datastore->uid)) {
2408 /* Matched by type AND uid */
2409 break;
2410 }
2411 }
2412
2413 return datastore;
2414}
const struct ast_datastore_info * info
Definition datastore.h:67
const char * uid
Definition datastore.h:65
struct ast_datastore::@223 entry

References ast_channel_datastores(), AST_LIST_TRAVERSE, ast_datastore::entry, ast_datastore::info, NULL, and ast_datastore::uid.

Referenced by acf_curl_helper(), acf_curlopt_helper(), acf_curlopt_write(), acf_exception_read(), acf_fetch(), acf_iaxvar_read(), acf_iaxvar_write(), acf_odbc_read(), add_agi_cmd(), add_features_datastore(), add_inheritable_header(), add_masquerade_store(), add_to_agi(), after_bridge_cb_find(), after_bridge_cb_setup(), after_bridge_goto_remove(), apply_plc(), ast_bridge_features_ds_get(), ast_bridge_read_after_goto(), ast_can_pickup(), ast_cc_agent_set_interfaces_chanvar(), ast_cc_call_init(), ast_cc_completed(), ast_cc_extension_monitor_add_dialstring(), ast_cc_get_current_core_id(), ast_cc_is_recall(), ast_cc_offer(), ast_channel_feature_hooks_get(), ast_channel_get_cc_config_params(), ast_channel_suppress(), ast_channel_unsuppress(), ast_geoloc_datastore_find(), ast_handle_cc_control_frame(), ast_ignore_cc(), ast_jb_create_framehook(), ast_odbc_retrieve_transaction_obj(), ast_set_cc_interfaces_chanvar(), ast_stir_shaken_add_result_to_channel(), ast_stir_shaken_get_attestation_datastore(), async_play_sound_ready(), attach_framehook(), audiohook_volume_callback(), audiohook_volume_get(), balance_stack(), bridge_channel_impart_add(), bridge_channel_impart_signal(), bridge_features_ds_set_full(), bridge_timeout(), calendar_event_read(), calendar_query_exec(), calendar_query_result_exec(), cc_build_payload(), chan_cleanup(), chan_rtp_get_rtp_peer(), channel_feature_hooks_set_full(), command_prestart_get_container(), command_prestart_queue_command(), conf_find_bridge_profile(), conf_find_user_profile(), conf_set_menu_to_user(), create_transaction(), detect_callback(), detect_read(), detect_write(), dial_exec_full(), dial_masquerade_datastore_find(), dialplan_handle_msg_cb(), disable_jack_hook(), dtmfstore_exec(), dundi_result_read(), enable_jack_hook(), enum_result_read(), exec_odbcfinish(), fetch_bridge_roles_datastore(), find_details(), find_speech(), find_transaction(), fixup_callback(), frame_drop_helper(), frame_trace_helper(), func_channel_read(), func_channel_write_real(), func_confbridge_helper(), func_mixmonitor_read(), func_read_verification(), func_write_attestation(), get_agi_cmd(), get_feature_chan_ds(), get_feature_ds(), get_lock(), get_park_common_datastore_copy(), get_replace_channel_store(), gosub_exec(), gosub_run(), handle_gosub(), handle_remb_set(), has_masquerade_store(), hook_off(), hook_re_enable(), iax2_call(), jack_hook_callback(), local_read(), local_write(), lock_fixup(), lua_get_state(), mark_transaction_active(), max_forwards_datastore_find_or_alloc(), mixmonitor_ds_remove_and_free(), msg_data_func_read(), msg_datastore_find_or_create(), msg_func_read(), msg_send_exec(), mute_mixmonitor_instance(), outgoing_request(), pitchshift_cb(), pitchshift_helper(), pop_exec(), raise_exception(), record_exec(), recording_info_read(), remb_hook_event_cb(), remove_detect(), remove_dtmf_store(), remove_framehook(), remove_hold_intercept(), remove_inheritable_header(), remove_masquerade_store(), remove_scrambler(), remove_stasis_end_published(), remove_talk_detect(), restore_dialstring(), return_exec(), scramble_callback(), scramble_write(), set_hold_intercept(), set_internal_datastore(), set_interval_hook(), set_security_requirements(), set_talk_detect(), setup_async_playback_datastore(), shared_read(), shared_write(), smdi_msg_read(), speech_datastore_destroy(), speex_callback(), speex_read(), speex_write(), srv_query_read(), srv_result_read(), stackpeek_read(), stasis_app_broadcast_channel(), stasis_app_channel_is_internal(), stasis_app_channel_is_stasis_end_published(), stop_mixmonitor_full(), t38_attach_framehook(), talk_detect_audiohook_cb(), unlock_read(), update_inheritable_header(), volume_callback(), volume_read(), volume_write(), wait_for_initiator(), wipe_park_common_datastore(), and wipe_subscription_datastore().

◆ ast_channel_datastore_inherit()

int ast_channel_datastore_inherit ( struct ast_channel from,
struct ast_channel to 
)

Inherit datastores from a parent to a child.

Note
None of the datastore API calls lock the ast_channel they are using. So, the channel should be locked before calling the functions that take a channel argument.

Definition at line 2359 of file channel.c.

2360{
2361 struct ast_datastore *datastore = NULL, *datastore2;
2362
2364 if (datastore->inheritance > 0) {
2365 datastore2 = ast_datastore_alloc(datastore->info, datastore->uid);
2366 if (datastore2) {
2367 datastore2->data = datastore->info->duplicate ? datastore->info->duplicate(datastore->data) : NULL;
2368 datastore2->inheritance = datastore->inheritance == DATASTORE_INHERIT_FOREVER ? DATASTORE_INHERIT_FOREVER : datastore->inheritance - 1;
2370 }
2371 }
2372 }
2373 return 0;
2374}
#define DATASTORE_INHERIT_FOREVER
Definition channel.h:194
void *(* duplicate)(void *data)
Definition datastore.h:33
unsigned int inheritance
Definition datastore.h:69

References ast_channel_datastores(), ast_datastore_alloc, AST_LIST_INSERT_TAIL, AST_LIST_TRAVERSE, ast_datastore::data, DATASTORE_INHERIT_FOREVER, ast_datastore_info::duplicate, ast_datastore::entry, ast_datastore::info, ast_datastore::inheritance, NULL, and ast_datastore::uid.

Referenced by __ast_request_and_dial(), ast_ari_channels_dial(), ast_unreal_call_setup(), begin_dial_prerun(), call_forward_inherit(), common_recall_channel_setup(), copy_caller_data(), dial_exec_full(), do_forward(), findmeexec(), park_local_transfer(), ring_entry(), and wait_for_answer().

◆ ast_channel_datastore_remove()

int ast_channel_datastore_remove ( struct ast_channel chan,
struct ast_datastore datastore 
)

◆ ast_channel_defer_dtmf()

int ast_channel_defer_dtmf ( struct ast_channel chan)

Set defer DTMF flag on channel.

Defers DTMF so that you only read things like hangups and audio.

Definition at line 1315 of file channel.c.

1316{
1317 int pre = 0;
1318
1319 if (chan) {
1320 ast_channel_lock(chan);
1323 ast_channel_unlock(chan);
1324 }
1325 return pre;
1326}

References ast_channel_flags(), ast_channel_lock, ast_channel_unlock, AST_FLAG_DEFER_DTMF, ast_set_flag, and ast_test_flag.

Referenced by __adsi_transmit_messages().

◆ ast_channel_destructor()

static void ast_channel_destructor ( void *  obj)
static

Free a channel structure.

Definition at line 2181 of file channel.c.

2182{
2183 struct ast_channel *chan = obj;
2184 struct ast_var_t *vardata;
2185 struct ast_frame *f;
2186 struct varshead *headp;
2187 struct ast_datastore *datastore;
2188 char device_name[AST_CHANNEL_NAME];
2189 ast_callid callid;
2190
2191 ast_debug(1, "Channel %p '%s' destroying\n", chan, ast_channel_name(chan));
2192
2193 /* If there is native format music-on-hold state, free it */
2194 if (ast_channel_music_state(chan)) {
2195 moh_cleanup(chan);
2196 }
2197
2199
2200 /* Things that may possibly raise Stasis messages shouldn't occur after this point */
2202
2204 /* A channel snapshot should not be in the process of being staged now. */
2206
2207 ast_channel_lock(chan);
2209 ast_channel_unlock(chan);
2210 }
2211
2212 ast_channel_lock(chan);
2213
2215
2216 /* Get rid of each of the data stores on the channel */
2217 while ((datastore = AST_LIST_REMOVE_HEAD(ast_channel_datastores(chan), entry)))
2218 /* Free the data store */
2219 ast_datastore_free(datastore);
2220
2221 /* While the channel is locked, take the reference to its callid while we tear down the call. */
2222 callid = ast_channel_callid(chan);
2224
2225 ast_channel_unlock(chan);
2226
2227 /* Lock and unlock the channel just to be sure nobody has it locked still
2228 due to a reference that was stored in a datastore. (i.e. app_chanspy) */
2229 ast_channel_lock(chan);
2230 ast_channel_unlock(chan);
2231
2232 if (ast_channel_tech_pvt(chan)) {
2233 ast_log_callid(LOG_WARNING, callid, "Channel '%s' may not have been hung up properly\n", ast_channel_name(chan));
2235 }
2236
2237 if (ast_channel_sched(chan)) {
2239 }
2240
2242 char *dashptr;
2243
2244 ast_copy_string(device_name, ast_channel_name(chan), sizeof(device_name));
2245 if ((dashptr = strrchr(device_name, '-'))) {
2246 *dashptr = '\0';
2247 }
2248 } else {
2249 device_name[0] = '\0';
2250 }
2251
2252 /* Free translators */
2253 if (ast_channel_readtrans(chan))
2255 if (ast_channel_writetrans(chan))
2257 if (ast_channel_pbx(chan))
2258 ast_log_callid(LOG_WARNING, callid, "PBX may not have been terminated properly on '%s'\n", ast_channel_name(chan));
2259
2260 /* Free formats */
2266
2272
2273 /* Close pipes if appropriate */
2275 if (ast_channel_timer(chan)) {
2278 }
2280 ast_frfree(f);
2281
2282 /* loop over the variables list, freeing all data and deleting list items */
2283 /* no need to lock the list, as the channel is already locked */
2284 headp = ast_channel_varshead(chan);
2285 while ((vardata = AST_LIST_REMOVE_HEAD(headp, entries)))
2286 ast_var_delete(vardata);
2287
2289
2290 /* Destroy the jitterbuffer */
2291 ast_jb_destroy(chan);
2292
2293 if (ast_channel_cdr(chan)) {
2296 }
2297
2298 if (ast_channel_zone(chan)) {
2300 }
2301
2303
2304 if (device_name[0]) {
2305 /*
2306 * We have a device name to notify of a new state.
2307 *
2308 * Queue an unknown state, because, while we know that this particular
2309 * instance is dead, we don't know the state of all other possible
2310 * instances.
2311 */
2313 }
2314
2316
2319
2321}
void ast_jb_destroy(struct ast_channel *chan)
Destroys jitterbuffer on a channel.
void ast_cdr_free(struct ast_cdr *cdr)
Free a CDR record.
Definition cdr.c:3557
static void moh_cleanup(struct ast_channel *chan)
Definition channel.c:7861
void ast_party_dialed_free(struct ast_party_dialed *doomed)
Destroy the dialed party contents.
Definition channel.c:1958
void ast_party_caller_free(struct ast_party_caller *doomed)
Destroy the caller party contents.
Definition channel.c:2002
void ast_party_redirecting_free(struct ast_party_redirecting *doomed)
Destroy the redirecting information contents.
Definition channel.c:2166
void ast_channel_named_pickupgroups_set(struct ast_channel *chan, struct ast_namedgroups *value)
void * ast_channel_tech_pvt(const struct ast_channel *chan)
void ast_channel_callid_cleanup(struct ast_channel *chan)
void ast_channel_set_oldwriteformat(struct ast_channel *chan, struct ast_format *format)
void ast_channel_internal_alertpipe_close(struct ast_channel *chan)
struct ast_cdr * ast_channel_cdr(const struct ast_channel *chan)
ast_callid ast_channel_callid(const struct ast_channel *chan)
struct ast_tone_zone * ast_channel_zone(const struct ast_channel *chan)
void ast_channel_named_callgroups_set(struct ast_channel *chan, struct ast_namedgroups *value)
void ast_channel_cdr_set(struct ast_channel *chan, struct ast_cdr *value)
struct ast_sched_context * ast_channel_sched(const struct ast_channel *chan)
@ AST_FLAG_DISABLE_DEVSTATE_CACHE
Definition channel.h:1049
@ AST_FLAG_SNAPSHOT_STAGE
Definition channel.h:1070
@ AST_FLAG_DEAD
Definition channel.h:1065
struct ast_pbx * ast_channel_pbx(const struct ast_channel *chan)
void ast_channel_zone_set(struct ast_channel *chan, struct ast_tone_zone *value)
int ast_channel_internal_is_finalized(struct ast_channel *chan)
void ast_channel_internal_cleanup(struct ast_channel *chan)
void ast_var_delete(struct ast_var_t *var)
Definition extconf.c:2469
@ AST_DEVSTATE_CACHABLE
Definition devicestate.h:70
@ AST_DEVSTATE_NOT_CACHABLE
Definition devicestate.h:69
int ast_devstate_changed_literal(enum ast_device_state state, enum ast_devstate_cache cachable, const char *device)
Tells Asterisk the State for Device is changed.
@ AST_DEVICE_UNKNOWN
Definition devicestate.h:53
void ast_channel_publish_final_snapshot(struct ast_channel *chan)
Send the final channel snapshot for a channel, thus removing it from cache.
int ast_app_group_discard(struct ast_channel *chan)
Discard all group counting for a channel.
Definition main/app.c:2320
unsigned int ast_callid
void ast_log_callid(int level, const char *file, int line, const char *function, ast_callid callid, const char *fmt,...)
Used for sending a log message with a known call_id This is a modified logger function which is funct...
Definition logger.c:2471
static struct ast_tone_zone * ast_tone_zone_unref(struct ast_tone_zone *tz)
Release a reference to an ast_tone_zone.
void ast_pbx_hangup_handler_destroy(struct ast_channel *chan)
Destroy the hangup handler container on a channel.
void ast_sched_context_destroy(struct ast_sched_context *c)
destroys a schedule context
Definition sched.c:271
void ast_timer_close(struct ast_timer *handle)
Close an opened timing handle.
Definition timing.c:154
void ast_translator_free_path(struct ast_trans_pvt *tr)
Frees a translator path Frees the given translator path structure.
Definition translate.c:533
#define ast_assert(a)
Definition utils.h:779

References ast_app_group_discard(), ast_assert, ast_atomic_fetchadd_int(), ast_cdr_free(), ast_channel_caller(), ast_channel_callid(), ast_channel_callid_cleanup(), ast_channel_cdr(), ast_channel_cdr_set(), ast_channel_connected(), ast_channel_connected_indicated(), ast_channel_datastores(), ast_channel_dialed(), ast_channel_endpoint_set(), ast_channel_flags(), ast_channel_internal_alertpipe_close(), ast_channel_internal_cleanup(), ast_channel_internal_is_finalized(), ast_channel_lock, ast_channel_music_state(), AST_CHANNEL_NAME, ast_channel_name(), ast_channel_named_callgroups_set(), ast_channel_named_pickupgroups_set(), ast_channel_nativeformats_set(), ast_channel_pbx(), ast_channel_publish_final_snapshot(), ast_channel_readq(), ast_channel_readtrans(), ast_channel_redirecting(), ast_channel_sched(), ast_channel_set_oldwriteformat(), ast_channel_set_rawreadformat(), ast_channel_set_rawwriteformat(), ast_channel_set_readformat(), ast_channel_set_writeformat(), ast_channel_tech_pvt(), ast_channel_timer(), ast_channel_timer_set(), ast_channel_unlock, ast_channel_varshead(), ast_channel_writetrans(), ast_channel_zone(), ast_channel_zone_set(), ast_copy_string(), ast_datastore_free(), ast_debug, AST_DEVICE_UNKNOWN, AST_DEVSTATE_CACHABLE, ast_devstate_changed_literal(), AST_DEVSTATE_NOT_CACHABLE, AST_FLAG_DEAD, AST_FLAG_DISABLE_DEVSTATE_CACHE, AST_FLAG_SNAPSHOT_STAGE, ast_free, ast_frfree, ast_jb_destroy(), AST_LIST_REMOVE_HEAD, ast_log_callid(), ast_party_caller_free(), ast_party_connected_line_free(), ast_party_dialed_free(), ast_party_redirecting_free(), ast_pbx_hangup_handler_destroy(), ast_sched_context_destroy(), ast_set_flag, ast_test_flag, ast_timer_close(), ast_tone_zone_unref(), ast_translator_free_path(), ast_var_delete(), chancount, ast_datastore::entry, LOG_WARNING, moh_cleanup(), and NULL.

Referenced by __ast_channel_alloc_ap().

◆ ast_channel_early_bridge()

int ast_channel_early_bridge ( struct ast_channel c0,
struct ast_channel c1 
)

Bridge two channels together (early)

Parameters
c0first channel to bridge
c1second channel to bridge

Bridge two channels (c0 and c1) together early. This implies either side may not be answered yet.

Returns
Returns 0 on success and -1 if it could not be done

Definition at line 7486 of file channel.c.

7487{
7488 /* Make sure we can early bridge, if not error out */
7489 if (!ast_channel_tech(c0)->early_bridge || (c1 && (!ast_channel_tech(c1)->early_bridge || ast_channel_tech(c0)->early_bridge != ast_channel_tech(c1)->early_bridge)))
7490 return -1;
7491
7492 return ast_channel_tech(c0)->early_bridge(c0, c1);
7493}
enum ast_bridge_result(*const early_bridge)(struct ast_channel *c0, struct ast_channel *c1)
Bridge two channels of the same type together (early)
Definition channel.h:788

References ast_channel_tech::early_bridge.

Referenced by dial_exec_full(), and wait_for_answer().

◆ ast_channel_end_dtmf()

void ast_channel_end_dtmf ( struct ast_channel chan,
char  digit,
struct timeval  start,
const char *  why 
)

Simulate a DTMF end on a broken bridge channel.

Parameters
chanChannel sending DTMF that has not ended.
digitDTMF digit to stop.
startDTMF digit start time.
whyReason bridge broken.

Definition at line 10979 of file channel.c.

10980{
10981 int dead;
10982 long duration;
10983
10984 ast_channel_lock(chan);
10987 & ~AST_SOFTHANGUP_ASYNCGOTO);
10988 ast_channel_unlock(chan);
10989 if (dead) {
10990 /* Channel is a zombie or a real hangup. */
10991 return;
10992 }
10993
10994 duration = ast_tvdiff_ms(ast_tvnow(), start);
10995 if (duration < option_dtmfminduration) {
10996 duration = option_dtmfminduration;
10997 }
10998 ast_senddigit_end(chan, digit, duration);
10999 ast_log(LOG_DTMF, "DTMF end '%c' simulated on %s due to %s, duration %ld ms\n",
11000 digit, ast_channel_name(chan), why, duration);
11001}
int ast_senddigit_end(struct ast_channel *chan, char digit, unsigned int duration)
Send a DTMF digit to a channel.
Definition channel.c:4981

References ast_channel_flags(), ast_channel_lock, ast_channel_name(), ast_channel_softhangup_internal_flag(), ast_channel_unlock, AST_FLAG_ZOMBIE, ast_log, ast_senddigit_end(), ast_test_flag, ast_tvdiff_ms(), ast_tvnow(), digit, LOG_DTMF, and option_dtmfminduration.

Referenced by bridge_channel_internal_join(), and channel_do_masquerade().

◆ ast_channel_errno()

enum ast_channel_error ast_channel_errno ( void  )

Get error code for latest channel operation.

Definition at line 11071 of file channel.c.

11072{
11074}
enum ast_channel_error ast_channel_internal_errno(void)

References ast_channel_internal_errno().

Referenced by ari_channels_handle_originate_with_id(), and ast_ari_channels_create().

◆ ast_channel_feature_hooks_append()

int ast_channel_feature_hooks_append ( struct ast_channel chan,
struct ast_bridge_features features 
)

Appends to the channel-attached features a channel has access to upon being bridged.

Note
The channel must be locked when calling this function.
Parameters
chanWhich channel to set features for
featuresThe feature set to append to the channel's features
Return values
0on success
-1on failure

Definition at line 11061 of file channel.c.

11062{
11063 return channel_feature_hooks_set_full(chan, features, 0);
11064}
static int channel_feature_hooks_set_full(struct ast_channel *chan, struct ast_bridge_features *features, int replace)
Definition channel.c:11024

References channel_feature_hooks_set_full().

Referenced by AST_TEST_DEFINE(), and AST_TEST_DEFINE().

◆ ast_channel_feature_hooks_get()

struct ast_bridge_features * ast_channel_feature_hooks_get ( struct ast_channel chan)

Gets the channel-attached features a channel has access to upon being bridged.

Note
The channel must be locked when calling this function.
Parameters
chanWhich channel to get features for
Return values
non-NULLThe features currently set for this channel
NULLif the features have not been set

Definition at line 11013 of file channel.c.

11014{
11015 struct ast_datastore *datastore;
11016
11018 if (!datastore) {
11019 return NULL;
11020 }
11021 return datastore->data;
11022}
static const struct ast_datastore_info bridge_features_info
Definition channel.c:11008

References ast_channel_datastore_find(), bridge_features_info, ast_datastore::data, and NULL.

Referenced by bridge_channel_internal_join().

◆ ast_channel_feature_hooks_replace()

int ast_channel_feature_hooks_replace ( struct ast_channel chan,
struct ast_bridge_features features 
)

Sets the channel-attached features a channel has access to upon being bridged.

Note
The channel must be locked when calling this function.
Parameters
chanWhich channel to set features for
featuresThe feature set with which to replace the channel's features
Return values
0on success
-1on failure

Definition at line 11066 of file channel.c.

11067{
11068 return channel_feature_hooks_set_full(chan, features, 1);
11069}

References channel_feature_hooks_set_full().

◆ ast_channel_get_ari_vars()

struct varshead * ast_channel_get_ari_vars ( struct ast_channel chan)

Gets the variables for a given channel, as specified by ast_channel_set_ari_vars().

Since
14.2.0

The returned variable list is an AO2 object, so ao2_cleanup() to free it.

Parameters
chanChannel to get variables for.
Returns
List of channel variables.
Return values
NULLon error

Definition at line 8035 of file channel.c.

8036{
8037 return channel_get_external_vars(&ari_vars, chan);
8038}
static struct varshead * channel_get_external_vars(struct external_vars *channelvars, struct ast_channel *chan)
Definition channel.c:7983
static struct external_vars ari_vars
Definition channel.c:7879

References ari_vars, and channel_get_external_vars().

Referenced by ast_channel_snapshot_create().

◆ ast_channel_get_bridge()

struct ast_bridge * ast_channel_get_bridge ( const struct ast_channel chan)

Get the bridge associated with a channel.

Since
12.0.0
Parameters
chanThe channel whose bridge we want

The bridge returned has its reference count incremented. Use ao2_cleanup() or ao2_ref() in order to decrement the reference count when you are finished with the bridge.

Note
This function expects the channel to be locked prior to being called and will not grab the channel lock.
Return values
NULLNo bridge present on the channel
non-NULLThe bridge the channel is in

Definition at line 10644 of file channel.c.

10645{
10646 struct ast_bridge *bridge;
10647
10648 bridge = ast_channel_internal_bridge(chan);
10649 if (bridge) {
10650 ao2_ref(bridge, +1);
10651 }
10652 return bridge;
10653}
struct ast_bridge * ast_channel_internal_bridge(const struct ast_channel *chan)

References ao2_ref, and ast_channel_internal_bridge().

Referenced by ast_bridge_add_channel(), ast_bridge_transfer_acquire_bridge(), ast_channel_bridge_peer(), bridgeadd_exec(), channel_snapshot_bridge_create(), generate_status(), get_transfer_parties(), handle_showchan(), manager_bridge_kick(), native_rtp_framehook(), and serialize_showchan().

◆ ast_channel_get_bridge_channel()

struct ast_bridge_channel * ast_channel_get_bridge_channel ( struct ast_channel chan)

Get a reference to the channel's bridge pointer.

Since
12.0.0
Parameters
chanThe channel whose bridge channel is desired
Note
This increases the reference count of the bridge_channel. Use ao2_ref() or ao2_cleanup() to decrement the refcount when you are finished with it.
It is expected that the channel is locked prior to placing this call.
Return values
NULLThe channel has no bridge_channel
non-NULLA reference to the bridge_channel

Definition at line 10692 of file channel.c.

10693{
10694 struct ast_bridge_channel *bridge_channel;
10695
10696 bridge_channel = ast_channel_internal_bridge_channel(chan);
10697 if (bridge_channel) {
10698 ao2_ref(bridge_channel, +1);
10699 }
10700 return bridge_channel;
10701}
struct ast_bridge_channel * ast_channel_internal_bridge_channel(const struct ast_channel *chan)
Structure that contains information regarding a channel in a bridge.
struct ast_channel * chan

References ao2_ref, ast_channel_internal_bridge_channel(), and ast_bridge_channel::chan.

Referenced by __analog_ss_thread(), agent_bridge_channel_get_lock(), analog_ss_thread(), ast_bridge_add_channel(), ast_bridge_notify_masquerade(), ast_bridge_transfer_attended(), ast_bridge_transfer_blind(), bridge_channel_internal_queue_attended_transfer(), bridge_channel_internal_queue_blind_transfer(), bridge_move(), dial_bridge_after_cb(), hold(), internal_bridge_after_cb(), manager_park_bridged(), parker_parked_call_message_response(), play_sound(), recall_pull(), ringing(), send_message(), set_interval_hook(), transfer_pull(), try_parking(), and unhold().

◆ ast_channel_get_by_exten()

struct ast_channel * ast_channel_get_by_exten ( const char *  exten,
const char *  context 
)

Find a channel by extension and context.

Parameters
extenthe extension to search for
contextthe context to search for

Return a channel that is currently at the specified extension and context.

Return values
achannel that is at the specified extension and context
NULLif no channel was found
Since
1.8

Definition at line 1430 of file channel.c.

1431{
1433 return NULL;
1434 }
1435 if (ast_strlen_zero(exten) || ast_strlen_zero(context)) {
1436 ast_log(LOG_ERROR, "exten and context must be provided\n");
1437 return NULL;
1438 }
1440}
static struct ast_channel * get_by_exten(struct ast_channelstorage_instance *driver, const char *exten, const char *context, int rdlock)

References ast_log, ast_strlen_zero(), CHANNELSTORAGE_API, ast_channel::context, current_channel_storage_instance, ast_channel::exten, get_by_exten(), LOG_ERROR, and NULL.

◆ ast_channel_get_by_name()

struct ast_channel * ast_channel_get_by_name ( const char *  search)

Find a channel by name or uniqueid.

Parameters
searchthe name or uniqueid of the channel to search for

First searches for a channel with a matching name. If not found a search for a channel with a matching uniqueid is done.

Return values
achannel with a matching name or uniqueid
NULLif no channel was found
Note
The fallback search by uniqueid is a historical thing. If you know the search term is a uniqueid, use ast_channel_get_by_uniqueid instead.
Since
1.8

Definition at line 1417 of file channel.c.

1418{
1420 return NULL;
1421 }
1422 if (ast_strlen_zero(name)) {
1423 ast_log(LOG_ERROR, "name must be provided\n");
1424 return NULL;
1425 }
1426
1427 return CHANNELSTORAGE_API(current_channel_storage_instance, get_by_name_prefix_or_uniqueid, name, 0, 1);
1428}

References ast_log, ast_strlen_zero(), CHANNELSTORAGE_API, current_channel_storage_instance, LOG_ERROR, name, and NULL.

Referenced by action_add_agi_cmd(), action_aocmessage(), action_atxfer(), action_blind_transfer(), action_cancel_atxfer(), action_getvar(), action_redirect(), action_sendtext(), action_setvar(), action_status(), action_timeout(), ari_channels_handle_originate_with_id(), ari_channels_handle_snoop_channel(), assign_uuid(), ast_ari_channels_create(), ast_ari_channels_dial(), ast_ari_channels_get_channel_var(), ast_ari_channels_hangup(), ast_ari_channels_rtpstatistics(), ast_ari_channels_transfer_progress(), ast_async_goto_by_name(), ast_manager_hangup_helper(), asyncgoto_exec(), bridge_channel_attended_transfer(), call_forwarded_handler(), channel_find(), channel_hangup_matches(), cli_channelstats_print_body(), common_exec(), controlplayback_manager(), do_broadcast(), find_control(), func_chan_exists_read(), func_export_write(), func_mchan_read(), func_mchan_write(), handle_cli_agi_add_cmd(), handle_core_set_debug_channel(), handle_dump_frames(), handle_getvariablefull(), handle_hangup(), handle_hangup(), handle_redirect(), handle_remb_set(), handle_set_chanvar(), handle_show_chanvar(), handle_show_hangup_channel(), handle_showchan(), handle_softhangup(), import_helper(), inherit_channel_vars_from_id(), manager_bridge_kick(), manager_mixmonitor(), manager_mute_mixmonitor(), manager_mutestream(), manager_optimize_away(), manager_park(), manager_play_dtmf(), manager_play_mf(), manager_send_flash(), manager_stop_mixmonitor(), moh_channel_thread(), parker_parked_call_message_response(), parking_park_bridge_channel(), push_notify_channel(), refer_progress_bridge(), rtp_check_timeout(), senddtmf_exec(), sendmf_exec(), sendsf_exec(), shared_read(), shared_write(), stasis_app_bridge_moh_channel(), stasis_app_bridge_moh_stop(), and stasis_app_bridge_playback_channel_find().

◆ ast_channel_get_by_name_prefix()

struct ast_channel * ast_channel_get_by_name_prefix ( const char *  name,
size_t  name_len 
)

Find a channel by a name prefix.

Parameters
searchThe channel name or uniqueid prefix to search for
lenOnly search for up to this many characters from the search term

Search for a channel that has the same name prefix as specified by the search term. If not found, search for an exact match on the uniqueid. Searching by partial uniqueid doesn't make any sense as it's usually a system-name plus a timestamp and is not supported.

Return values
achannel with a matching name or uniqueid
NULLif no channel was found
Note
The fallback search by uniqueid is a historical thing. If you know the search term is a uniqueid, use ast_channel_get_by_uniqueid instead.
Since
1.8

Definition at line 1400 of file channel.c.

1401{
1403 return NULL;
1404 }
1405 if (ast_strlen_zero(name)) {
1406 ast_log(LOG_ERROR, "name must be provided\n");
1407 return NULL;
1408 }
1409
1410 return CHANNELSTORAGE_API(current_channel_storage_instance, get_by_name_prefix_or_uniqueid, name, name_len, 1);
1411}

References ast_log, ast_strlen_zero(), CHANNELSTORAGE_API, current_channel_storage_instance, LOG_ERROR, name, and NULL.

Referenced by action_aocmessage(), action_bridge(), ast_parse_device_state(), bridge_exec(), bridgeadd_exec(), cc_generic_agent_stop_ringing(), common_exec(), handle_bridge_kick_channel(), handle_cli_mixmonitor(), shared_read(), and shared_write().

◆ ast_channel_get_by_uniqueid()

struct ast_channel * ast_channel_get_by_uniqueid ( const char *  uniqueid)

Find a channel by a uniqueid.

Parameters
uniqueidThe uniqueid to search for
Return values
achannel with the uniqueid specified by the arguments
NULLif no channel was found

Definition at line 1442 of file channel.c.

1443{
1445 return NULL;
1446 }
1447 if (ast_strlen_zero(uniqueid)) {
1448 ast_log(LOG_ERROR, "uniqueid must be provided\n");
1449 return NULL;
1450 }
1452}
static struct ast_channel * get_by_uniqueid(struct ast_channelstorage_instance *driver, const char *uniqueid, int lock)

References ast_log, ast_strlen_zero(), CHANNELSTORAGE_API, current_channel_storage_instance, get_by_uniqueid(), LOG_ERROR, NULL, and ast_channel::uniqueid.

◆ ast_channel_get_cc_agent_type()

int ast_channel_get_cc_agent_type ( struct ast_channel chan,
char *  agent_type,
size_t  size 
)

Find the appropriate CC agent type to use given a channel.

Since
1.8

During call completion, we will need to create a call completion agent structure. To figure out the type of agent to construct, we need to ask the channel driver for the appropriate type.

Prior to adding this function, the call completion core attempted to figure this out for itself by stripping the technology off the channel's name. However, in the case of chan_dahdi, there are multiple agent types registered, and so simply searching for an agent type called "DAHDI" is not possible. In a case where multiple agent types are defined, the channel driver must have a queryoption callback defined in its channel_tech, and the queryoption callback must handle AST_OPTION_CC_AGENT_TYPE

If a channel driver does not have a queryoption callback or if the queryoption callback does not handle AST_OPTION_CC_AGENT_TYPE, then the old behavior of using the technology portion of the channel name is used instead. This is perfectly suitable for channel drivers whose channel technologies are a one-to-one match with the agent types defined within.

Note that this function is only called when the agent policy on a given channel is set to "native." Generic agents' type can be determined automatically by the core.

Parameters
chanThe channel for which we wish to retrieve the agent type
[out]agent_typeThe type of agent the channel driver wants us to use
sizeThe size of the buffer to write to

Definition at line 10623 of file channel.c.

10624{
10625 int len = size;
10626 char *slash;
10627
10629 return 0;
10630 }
10631
10633 if ((slash = strchr(agent_type, '/'))) {
10634 *slash = '\0';
10635 }
10636 return 0;
10637}
static struct aco_type agent_type
int ast_channel_queryoption(struct ast_channel *chan, int option, void *data, int *datalen, int block)
Checks the value of an option.
Definition channel.c:7516
static int len(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t buflen)
#define AST_OPTION_CC_AGENT_TYPE

References agent_type, ast_channel_name(), ast_channel_queryoption(), ast_copy_string(), AST_OPTION_CC_AGENT_TYPE, and len().

Referenced by find_agent_callbacks().

◆ ast_channel_get_cc_config_params()

struct ast_cc_config_params * ast_channel_get_cc_config_params ( struct ast_channel chan)

Get the CCSS parameters from a channel.

Since
1.8

This function makes use of datastore operations on the channel, so it is important to lock the channel before calling this function.

Warning
You should call this function only if ast_cc_is_enabled() returns true.
Parameters
chanChannel to retrieve parameters from
Return values
NULLFailure or CCSS is globally disabled.
non-NULLThe parameters desired

Definition at line 10580 of file channel.c.

10581{
10582 struct ast_datastore *cc_datastore;
10583
10584 if (!ast_cc_is_enabled()) {
10585 return NULL;
10586 }
10587
10588 if (!(cc_datastore = ast_channel_datastore_find(chan, &cc_channel_datastore_info, NULL))) {
10589 /* If we can't find the datastore, it almost definitely means that the channel type being
10590 * used has not had its driver modified to parse CC config parameters. The best action
10591 * to take here is to create the parameters on the spot with the defaults set.
10592 */
10593 if (ast_channel_cc_params_init(chan, NULL)) {
10594 return NULL;
10595 }
10596 if (!(cc_datastore = ast_channel_datastore_find(chan, &cc_channel_datastore_info, NULL))) {
10597 /* Should be impossible */
10598 return NULL;
10599 }
10600 }
10601
10602 ast_assert(cc_datastore->data != NULL);
10603 return cc_datastore->data;
10604}
int ast_cc_is_enabled(void)
Determine if CCSS is enabled.
Definition ccss.c:4540
int ast_channel_cc_params_init(struct ast_channel *chan, const struct ast_cc_config_params *base_params)
Set up datastore with CCSS parameters for a channel.
Definition channel.c:10557

References ast_assert, ast_cc_is_enabled(), ast_channel_cc_params_init(), ast_channel_datastore_find(), cc_channel_datastore_info, ast_datastore::data, and NULL.

Referenced by acf_cc_read(), acf_cc_write(), analog_call(), ast_cc_call_failed(), ast_cc_call_init(), ast_queue_cc_frame(), ast_unreal_call_setup(), ast_unreal_new_channels(), cc_agent_init(), cc_core_init_instance(), and find_agent_callbacks().

◆ ast_channel_get_current_storage_driver_name()

const char * ast_channel_get_current_storage_driver_name ( void  )

Get the name of the current channel storage driver.

Returns
The name of the current channel storage driver

Definition at line 8079 of file channel.c.

8080{
8083}
const struct ast_channelstorage_driver * current_channel_storage_driver
The current channel storage driver.

References current_channel_storage_driver, and ast_channelstorage_driver::driver_name.

Referenced by handle_show_settings().

◆ ast_channel_get_device_name()

int ast_channel_get_device_name ( struct ast_channel chan,
char *  device_name,
size_t  name_buffer_length 
)

Get a device name given its channel structure.

Since
1.8

A common practice in Asterisk is to determine the device being talked to by dissecting the channel name. For certain channel types, this is not accurate. For instance, an ISDN channel is named based on what B channel is used, not the device being communicated with.

This function interfaces with a channel tech's queryoption callback to retrieve the name of the device being communicated with. If the channel does not implement this specific option, then the traditional method of using the channel name is used instead.

Parameters
chanThe channel to retrieve the information from
[out]device_nameThe buffer to place the device's name into
name_buffer_lengthThe allocated space for the device_name
Returns
0 always

Definition at line 10606 of file channel.c.

10607{
10608 int len = name_buffer_length;
10609 char *dash;
10610 if (!ast_channel_queryoption(chan, AST_OPTION_DEVICE_NAME, device_name, &len, 0)) {
10611 return 0;
10612 }
10613
10614 /* Dang. Do it the old-fashioned way */
10615 ast_copy_string(device_name, ast_channel_name(chan), name_buffer_length);
10616 if ((dash = strrchr(device_name, '-'))) {
10617 *dash = '\0';
10618 }
10619
10620 return 0;
10621}
#define AST_OPTION_DEVICE_NAME

References ast_channel_name(), ast_channel_queryoption(), ast_copy_string(), AST_OPTION_DEVICE_NAME, and len().

Referenced by ast_cc_call_failed(), ast_cc_is_recall(), ast_queue_cc_frame(), cc_core_init_instance(), cccancel_exec(), ccreq_exec(), chan_pjsip_indicate(), dial_exec_full(), and func_channel_read().

◆ ast_channel_get_duration()

int ast_channel_get_duration ( struct ast_channel chan)

Obtain how long the channel since the channel was created.

Since
12
Parameters
chanThe channel object
Return values
0if the time value cannot be computed (or you called this really fast)
Thenumber of seconds the channel has been up

Definition at line 2864 of file channel.c.

2865{
2866 return (ast_channel_get_duration_ms(chan) / 1000);
2867}
int64_t ast_channel_get_duration_ms(struct ast_channel *chan)
Obtain how long it's been, in milliseconds, since the channel was created.
Definition channel.c:2854

References ast_channel_get_duration_ms().

Referenced by end_bridge_callback(), and serialize_showchan().

◆ ast_channel_get_duration_ms()

int64_t ast_channel_get_duration_ms ( struct ast_channel chan)

Obtain how long it's been, in milliseconds, since the channel was created.

Since
13.27.0
16.4.0
Parameters
chanThe channel object
Return values
0if the time value cannot be computed (or you called this really fast)
Thenumber of milliseconds since channel creation

Definition at line 2854 of file channel.c.

2855{
2856 ast_assert(NULL != chan);
2857
2859 return 0;
2860 }
2862}
struct timeval ast_channel_creationtime(struct ast_channel *chan)

References ast_assert, ast_channel_creationtime(), ast_tvdiff_ms(), ast_tvnow(), ast_tvzero(), and NULL.

Referenced by ast_channel_get_duration(), end_bridge_callback(), end_bridge_callback(), and queue_exec().

◆ ast_channel_get_intercept_mode()

int ast_channel_get_intercept_mode ( void  )

Am I currently running an intercept dialplan routine.

Since
13.14.0

A dialplan intercept routine is equivalent to an interrupt routine. As such, the routine must be done quickly and you do not have access to the media stream. These restrictions are necessary because the media stream is the responsibility of some other code and interfering with or delaying that processing is bad.

Return values
0Not in an intercept routine.
1In an intercept routine.

Definition at line 10439 of file channel.c.

10440{
10441 return ast_threadstorage_get_ptr(&in_intercept_routine) ? 1 : 0;
10442}
void * ast_threadstorage_get_ptr(struct ast_threadstorage *ts)
Retrieve a raw pointer from threadstorage.

References ast_threadstorage_get_ptr().

Referenced by run_agi().

◆ ast_channel_get_manager_vars()

struct varshead * ast_channel_get_manager_vars ( struct ast_channel chan)

Gets the variables for a given channel, as specified by ast_channel_set_manager_vars().

Since
12

The returned variable list is an AO2 object, so ao2_cleanup() to free it.

Parameters
chanChannel to get variables for.
Returns
List of channel variables.
Return values
NULLon error

Definition at line 8030 of file channel.c.

8031{
8032 return channel_get_external_vars(&ami_vars, chan);
8033}
static struct external_vars ami_vars
Definition channel.c:7878

References ami_vars, and channel_get_external_vars().

Referenced by append_channel_vars(), and ast_channel_snapshot_create().

◆ ast_channel_get_up_time()

int ast_channel_get_up_time ( struct ast_channel chan)

Obtain how long it has been since the channel was answered.

Since
12
Parameters
chanThe channel object
Return values
0if the channel isn't answered (or you called this really fast)
Thenumber of seconds the channel has been up

Definition at line 2879 of file channel.c.

2880{
2881 return (ast_channel_get_up_time_ms(chan) / 1000);
2882}
int64_t ast_channel_get_up_time_ms(struct ast_channel *chan)
Obtain how long it has been since the channel was answered in ms.
Definition channel.c:2869

References ast_channel_get_up_time_ms().

Referenced by action_confbridgelist_item(), chan_pjsip_read_stream(), dahdi_read(), and end_bridge_callback().

◆ ast_channel_get_up_time_ms()

int64_t ast_channel_get_up_time_ms ( struct ast_channel chan)

Obtain how long it has been since the channel was answered in ms.

Since
13.27.0
16.4.0
Parameters
chanThe channel object
Return values
0if the channel isn't answered (or you called this really fast)
Thenumber of milliseconds the channel has been up

Definition at line 2869 of file channel.c.

2870{
2871 ast_assert(NULL != chan);
2872
2874 return 0;
2875 }
2877}
struct timeval ast_channel_answertime(struct ast_channel *chan)

References ast_assert, ast_channel_answertime(), ast_tvdiff_ms(), ast_tvnow(), ast_tvzero(), and NULL.

Referenced by ast_channel_get_up_time(), and end_bridge_callback().

◆ ast_channel_get_vars()

struct varshead * ast_channel_get_vars ( struct ast_channel chan)

Gets the variables for a given channel, as set using pbx_builtin_setvar_helper().

Since
12

The returned variable list is an AO2 object, so ao2_cleanup() to free it.

Parameters
chanChannel to get variables for
Returns
List of channel variables.
Return values
NULLon error

Definition at line 7958 of file channel.c.

7959{
7960 RAII_VAR(struct varshead *, ret, NULL, ao2_cleanup);
7961 struct ast_var_t *cv;
7962
7963 ret = ao2_alloc(sizeof(*ret), varshead_dtor);
7964
7965 if (!ret) {
7966 return NULL;
7967 }
7968
7971
7972 if (!var) {
7973 return NULL;
7974 }
7975
7977 }
7978
7979 ao2_ref(ret, +1);
7980 return ret;
7981}
#define var
Definition ast_expr2f.c:605
#define ao2_cleanup(obj)
Definition astobj2.h:1934
#define ao2_alloc(data_size, destructor_fn)
Definition astobj2.h:409
static void varshead_dtor(void *obj)
Destructor for lists of variables.
Definition channel.c:7948
const char * ast_var_name(const struct ast_var_t *var)
Definition chanvars.c:60
#define ast_var_assign(name, value)
Definition chanvars.h:40
const char * ast_var_value(const struct ast_var_t *var)
Definition chanvars.c:80
struct ast_var_t::@220 entries
#define RAII_VAR(vartype, varname, initval, dtor)
Declare a variable that will call a destructor function when it goes out of scope.
Definition utils.h:981

References ao2_alloc, ao2_cleanup, ao2_ref, ast_channel_varshead(), AST_LIST_INSERT_TAIL, AST_LIST_TRAVERSE, ast_var_assign, ast_var_name(), ast_var_value(), ast_var_t::entries, NULL, RAII_VAR, var, and varshead_dtor().

◆ ast_channel_hangupcause_hash_set()

void ast_channel_hangupcause_hash_set ( struct ast_channel chan,
const struct ast_control_pvt_cause_code cause_code,
int  datalen 
)

Sets the HANGUPCAUSE hash and optionally the SIP_CAUSE hash on the given channel.

Parameters
chanchannel on which to set the cause information
cause_codeast_control_pvt_cause_code structure containing cause information
datalentotal length of the structure since it may vary

Definition at line 4402 of file channel.c.

4403{
4404 char causevar[256];
4405
4406 if (ast_channel_dialed_causes_add(chan, cause_code, datalen)) {
4407 ast_log(LOG_WARNING, "Unable to store hangup cause for %s on %s\n", cause_code->chan_name, ast_channel_name(chan));
4408 }
4409
4410 if (cause_code->emulate_sip_cause) {
4411 snprintf(causevar, sizeof(causevar), "HASH(SIP_CAUSE,%s)", cause_code->chan_name);
4412 ast_func_write(chan, causevar, cause_code->code);
4413 }
4414}
int ast_channel_dialed_causes_add(const struct ast_channel *chan, const struct ast_control_pvt_cause_code *cause_code, int datalen)
Add cause code information to the channel.
int ast_func_write(struct ast_channel *chan, const char *function, const char *value)
executes a write operation on a function

References ast_channel_dialed_causes_add(), ast_channel_name(), ast_func_write(), ast_log, ast_control_pvt_cause_code::chan_name, ast_control_pvt_cause_code::code, ast_frame::datalen, ast_control_pvt_cause_code::emulate_sip_cause, and LOG_WARNING.

Referenced by __analog_handle_event(), __ast_request_and_dial(), chan_pjsip_incoming_response_update_cause(), indicate_data_internal(), jingle_action_session_terminate(), and socket_process_helper().

◆ ast_channel_has_ari_vars()

int ast_channel_has_ari_vars ( void  )

Return whether or not any ARI variables have been set.

Since
14.2.0
Return values
0if no ARI variables are expected
1if ARI variables are expected

Definition at line 7907 of file channel.c.

7908{
7910}
static int channel_has_external_vars(struct external_vars *channelvars)
Definition channel.c:7891

References ari_vars, and channel_has_external_vars().

◆ ast_channel_has_audio_frame_or_monitor()

int ast_channel_has_audio_frame_or_monitor ( struct ast_channel chan)

Check if the channel has active audiohooks, active framehooks, or a monitor.

Since
12.0.0
Parameters
chanThe channel to check.
Return values
non-zeroif channel has active audiohooks, framehooks, or monitor.

Definition at line 2551 of file channel.c.

2552{
2555}
int ast_framehook_list_contains_no_active(struct ast_framehook_list *framehooks)
Determine if a framehook list is free of active framehooks or not.
Definition framehook.c:282

References ast_audiohook_write_list_empty(), ast_channel_audiohooks(), ast_channel_framehooks(), and ast_framehook_list_contains_no_active().

Referenced by native_bridge_is_capable(), optimize_lock_chan_stack(), and optimize_lock_peer_stack().

◆ ast_channel_has_hook_requiring_audio()

int ast_channel_has_hook_requiring_audio ( struct ast_channel chan)

Check if the channel has any active hooks that require audio.

Since
12.3.0
Parameters
chanThe channel to check.
Return values
non-zeroif channel has active audiohooks, audio framehooks, or monitor.

Definition at line 2557 of file channel.c.

2558{
2561}
int ast_framehook_list_contains_no_active_of_type(struct ast_framehook_list *framehooks, enum ast_frame_type type)
Determine if a framehook list is free of active framehooks consuming a specific type of frame.
Definition framehook.c:287

References ast_audiohook_write_list_empty(), ast_channel_audiohooks(), ast_channel_framehooks(), AST_FRAME_VOICE, and ast_framehook_list_contains_no_active_of_type().

Referenced by native_rtp_bridge_capable().

◆ ast_channel_has_manager_vars()

int ast_channel_has_manager_vars ( void  )

Return whether or not any manager variables have been set.

Since
12.4.0
Return values
0if no manager variables are expected
1if manager variables are expected

Definition at line 7902 of file channel.c.

7903{
7905}

References ami_vars, and channel_has_external_vars().

Referenced by ast_channel_publish_varset().

◆ ast_channel_inherit_variables()

void ast_channel_inherit_variables ( const struct ast_channel parent,
struct ast_channel child 
)

Inherits channel variable from parent to child channel.

Parameters
parentParent channel
childChild channel

Scans all channel variables in the parent channel, looking for those that should be copied into the child channel. Variables whose names begin with a single '_' are copied into the child channel with the prefix removed. Variables whose names begin with '__' are copied into the child channel with their names unchanged.

Definition at line 6833 of file channel.c.

6834{
6835 struct ast_var_t *current;
6836 struct ast_var_t *newvar;
6837 const char *varname;
6838 int vartype;
6839
6841 varname = ast_var_full_name(current);
6842 if (!varname) {
6843 continue;
6844 }
6845
6846 vartype = 0;
6847 if (varname[0] == '_') {
6848 vartype = 1;
6849 if (varname[1] == '_') {
6850 vartype = 2;
6851 }
6852 }
6853
6854 switch (vartype) {
6855 case 1:
6856 newvar = ast_var_assign(&varname[1], ast_var_value(current));
6857 break;
6858 case 2:
6859 newvar = ast_var_assign(varname, ast_var_value(current));
6860 break;
6861 default:
6862 continue;
6863 }
6864 if (newvar) {
6865 ast_debug(1, "Inheriting variable %s from %s to %s.\n",
6866 ast_var_full_name(newvar), ast_channel_name(parent),
6867 ast_channel_name(child));
6870 ast_var_value(newvar));
6871 }
6872 }
6873}
size_t current
const char * ast_var_full_name(const struct ast_var_t *var)
Definition chanvars.c:75
void ast_channel_publish_varset(struct ast_channel *chan, const char *variable, const char *value)
Publish a ast_channel_publish_varset for a channel.

References ast_channel_name(), ast_channel_publish_varset(), ast_channel_varshead(), ast_debug, AST_LIST_INSERT_TAIL, AST_LIST_TRAVERSE, ast_var_assign, ast_var_full_name(), ast_var_value(), current, and ast_var_t::entries.

Referenced by __ast_request_and_dial(), ast_ari_channels_dial(), begin_dial_prerun(), call_forward_inherit(), common_recall_channel_setup(), copy_caller_data(), dial_exec_full(), do_forward(), findmeexec(), park_local_transfer(), ring_entry(), and wait_for_answer().

◆ ast_channel_is_bridged()

int ast_channel_is_bridged ( const struct ast_channel chan)

Determine if a channel is in a bridge.

Since
12.0.0
Parameters
chanThe channel to test
Note
This function expects the channel to be locked prior to being called and will not grab the channel lock.
Return values
0The channel is not bridged
non-zeroThe channel is bridged

Definition at line 10655 of file channel.c.

10656{
10657 return ast_channel_internal_bridge(chan) != NULL;
10658}

References ast_channel_internal_bridge(), and NULL.

Referenced by __ast_read(), action_redirect(), app_control_dial(), ast_async_goto(), ast_audiohook_attach(), ast_audiohook_remove(), ast_framehook_attach(), ast_framehook_detach(), ast_framehook_list_fixup(), ast_var_channel_bridge(), attach_barge(), audio_audiohook_write_list(), chan_pjsip_read_stream(), chan_pjsip_set_rtp_peer(), common_exec(), dtmf_audiohook_write_list(), mixmonitor_autochan_is_bridged(), set_caps(), set_timeout(), wait_for_bridged(), wait_for_bridged(), wait_for_unbridged(), and wait_for_unbridged().

◆ ast_channel_is_leaving_bridge()

int ast_channel_is_leaving_bridge ( struct ast_channel chan)

Determine if a channel is leaving a bridge, but not hung up.

Since
12.4.0
Parameters
chanThe channel to test
Note
If a channel is hung up, it is implicitly leaving any bridge it may be in. This function is used to test if a channel is leaving a bridge but may survive the experience, if it has a place to go to (dialplan or otherwise)
Return values
0The channel is not leaving the bridge or is hung up
non-zeroThe channel is leaving the bridge

Definition at line 10660 of file channel.c.

10661{
10662 int hangup_flags = ast_channel_softhangup_internal_flag(chan);
10663 int hangup_test = hangup_flags & AST_SOFTHANGUP_ASYNCGOTO;
10664 int unbridge = ast_channel_unbridged(chan);
10665
10666 /* This function should only return true if either the unbridged flag or
10667 * the ASYNCGOTO soft hangup flag is set and when no other soft hangup
10668 * flags are set. Any other soft hangup flags being set should make it
10669 * return false.
10670 */
10671 return ((hangup_test || unbridge) && (hangup_test == hangup_flags));
10672}
@ AST_SOFTHANGUP_ASYNCGOTO
Definition channel.h:1146
int ast_channel_unbridged(struct ast_channel *chan)
This function will check if the bridge needs to be re-evaluated due to external changes.

References ast_channel_softhangup_internal_flag(), ast_channel_unbridged(), and AST_SOFTHANGUP_ASYNCGOTO.

Referenced by ast_indicate_data(), and bridge_channel_internal_pull().

◆ ast_channel_iterator_all_new()

struct ast_channel_iterator * ast_channel_iterator_all_new ( void  )

Create a new channel iterator.

After creating an iterator using this function, the ast_channel_iterator_next() function can be used to iterate through all channels that exist.

Note
You must call ast_channel_iterator_destroy() when done.
Return values
NULLon failure
anew channel iterator
Since
1.8

Definition at line 1380 of file channel.c.

1381{
1383 return NULL;
1384 }
1386}
static struct ast_channel_iterator * iterator_all_new(struct ast_channelstorage_instance *driver)

References CHANNELSTORAGE_API, current_channel_storage_instance, iterator_all_new(), and NULL.

Referenced by action_status(), ast_manager_hangup_helper(), ast_var_channel_bridge(), ast_var_channel_types_table(), ast_var_channels_table(), common_exec(), func_channels_read(), and handle_show_hangup_all().

◆ ast_channel_iterator_by_exten_new()

struct ast_channel_iterator * ast_channel_iterator_by_exten_new ( const char *  exten,
const char *  context 
)

Create a new channel iterator based on extension.

Parameters
extenThe extension that channels must be in
contextThe context that channels must be in

After creating an iterator using this function, the ast_channel_iterator_next() function can be used to iterate through all channels that are currently in the specified context and extension.

Note
You must call ast_channel_iterator_destroy() when done.
Return values
NULLon failure
anew channel iterator based on the specified parameters
Since
1.8

Definition at line 1357 of file channel.c.

1358{
1360 return NULL;
1361 }
1362 if (ast_strlen_zero(exten) || ast_strlen_zero(context)) {
1363 ast_log(LOG_ERROR, "exten and context must be provided\n");
1364 return NULL;
1365 }
1367}
static struct ast_channel_iterator * iterator_by_exten_new(struct ast_channelstorage_instance *driver, const char *exten, const char *context)

References ast_log, ast_strlen_zero(), CHANNELSTORAGE_API, current_channel_storage_instance, iterator_by_exten_new(), LOG_ERROR, and NULL.

Referenced by common_exec(), and pickup_by_exten().

◆ ast_channel_iterator_by_name_new()

struct ast_channel_iterator * ast_channel_iterator_by_name_new ( const char *  name,
size_t  name_len 
)

Create a new channel iterator based on name.

Parameters
namechannel name or channel uniqueid to match
name_lennumber of characters in the channel name to match on. This would be used to match based on name prefix. If matching on the full channel name is desired, then this parameter should be 0.

After creating an iterator using this function, the ast_channel_iterator_next() function can be used to iterate through all channels that exist that have the specified name or name prefix.

Note
You must call ast_channel_iterator_destroy() when done.
Return values
NULLon failure
anew channel iterator based on the specified parameters
Since
1.8

Definition at line 1368 of file channel.c.

1369{
1371 return NULL;
1372 }
1373 if (ast_strlen_zero(name)) {
1374 ast_log(LOG_ERROR, "name must be provided\n");
1375 return NULL;
1376 }
1378}
static struct ast_channel_iterator * iterator_by_name_new(struct ast_channelstorage_instance *driver, const char *name, size_t name_len)

References ast_log, ast_strlen_zero(), CHANNELSTORAGE_API, current_channel_storage_instance, iterator_by_name_new(), LOG_ERROR, name, and NULL.

Referenced by common_exec(), get_device_state_causing_channels(), and softhangup_exec().

◆ ast_channel_iterator_destroy()

struct ast_channel_iterator * ast_channel_iterator_destroy ( struct ast_channel_iterator i)

Destroy a channel iterator.

Parameters
ithe itereator to destroy

This function is used to destroy a channel iterator that was retrieved by using one of the channel_iterator_xxx_new() functions.

Return values
NULLfor convenience to clear out the pointer to the iterator that was just destroyed.
Since
1.8

Definition at line 1349 of file channel.c.

1350{
1352 return NULL;
1353 }
1355}
static struct ast_channel_iterator * iterator_destroy(struct ast_channelstorage_instance *driver, struct ast_channel_iterator *i)

References CHANNELSTORAGE_API, current_channel_storage_instance, iterator_destroy(), and NULL.

Referenced by action_status(), ast_manager_hangup_helper(), ast_var_channel_bridge(), ast_var_channel_types_table(), ast_var_channels_table(), common_exec(), func_channels_read(), get_device_state_causing_channels(), handle_show_hangup_all(), pickup_by_exten(), and softhangup_exec().

◆ ast_channel_iterator_next()

struct ast_channel * ast_channel_iterator_next ( struct ast_channel_iterator i)

Get the next channel for a channel iterator.

Parameters
ithe channel iterator that was created using one of the channel_iterator_xxx_new() functions.

This function should be used to iterate through all channels that match a specified set of parameters that were provided when the iterator was created.

Return values
thenext channel that matches the parameters used when the iterator was created.
NULLif no more channels match the iterator parameters.
Since
1.8

Definition at line 1388 of file channel.c.

1389{
1391 return NULL;
1392 }
1394}
static struct ast_channel * iterator_next(struct ast_channelstorage_instance *driver, struct ast_channel_iterator *i)

References CHANNELSTORAGE_API, current_channel_storage_instance, iterator_next(), and NULL.

Referenced by action_status(), ast_manager_hangup_helper(), ast_var_channel_bridge(), ast_var_channel_types_table(), ast_var_channels_table(), func_channels_read(), get_device_state_causing_channels(), handle_show_hangup_all(), next_channel(), pickup_by_exten(), and softhangup_exec().

◆ ast_channel_make_compatible()

int ast_channel_make_compatible ( struct ast_channel chan,
struct ast_channel peer 
)

Make the frame formats of two channels compatible.

Parameters
chanFirst channel to make compatible. Should be the calling party.
peerOther channel to make compatible. Should be the called party.
Note
Absolutely NO channel locks should be held before calling this function.

Set two channels to compatible frame formats in both directions. The path from peer to chan is made compatible first to allow for in-band audio in case the other direction cannot be made compatible.

Return values
0on success.
-1on error.

Definition at line 6777 of file channel.c.

6778{
6779 /*
6780 * Set up translation from the peer to the chan first in case we
6781 * need to hear any in-band tones and the other direction fails.
6782 */
6783 if (ast_channel_make_compatible_helper(peer, chan)) {
6784 return -1;
6785 }
6786
6787 /* Set up translation from the chan to the peer */
6788 if (ast_channel_make_compatible_helper(chan, peer)) {
6789 return -1;
6790 }
6791
6792 return 0;
6793}
static int ast_channel_make_compatible_helper(struct ast_channel *from, struct ast_channel *to)
Set up translation from one channel to another.
Definition channel.c:6698

References ast_channel_make_compatible_helper().

Referenced by app_exec(), dial_exec_full(), do_forward(), fax_detect_framehook(), fax_gateway_framehook(), native_bridge_join(), simple_bridge_join(), try_calling(), and wait_for_answer().

◆ ast_channel_make_compatible_helper()

static int ast_channel_make_compatible_helper ( struct ast_channel from,
struct ast_channel to 
)
static

Set up translation from one channel to another.

Definition at line 6698 of file channel.c.

6699{
6700 struct ast_format_cap *src_cap;
6701 struct ast_format_cap *dst_cap;
6702 RAII_VAR(struct ast_format *, best_src_fmt, NULL, ao2_cleanup);
6703 RAII_VAR(struct ast_format *, best_dst_fmt, NULL, ao2_cleanup);
6704 int no_path;
6705
6706 /*
6707 * We cannot short circuit this code because it is possible to ask
6708 * to make compatible two channels that are "compatible" because
6709 * they already have translation paths setup but together make for
6710 * a sub-optimal path. e.g., The From channel has g722 -> ulaw
6711 * and the To channel has ulaw -> g722. They are "compatible" but
6712 * together the translations are unnecessary and the audio loses
6713 * fidelity in the process.
6714 */
6715
6716 ast_channel_lock_both(from, to);
6717
6718 src_cap = ast_channel_nativeformats(from); /* shallow copy, do not destroy */
6719 dst_cap = ast_channel_nativeformats(to); /* shallow copy, do not destroy */
6720
6721 /* If there's no audio in this call, don't bother with trying to find a translation path */
6725 ast_channel_unlock(from);
6726 return 0;
6727 }
6728
6729 no_path = ast_translator_best_choice(dst_cap, src_cap, &best_dst_fmt, &best_src_fmt);
6730
6732 ast_channel_unlock(from);
6733
6734 if (no_path) {
6735 ast_log(LOG_WARNING, "No path to translate from %s to %s\n",
6737 return -1;
6738 }
6739
6740 /* if the best path is not 'pass through', then
6741 * transcoding is needed; if desired, force transcode path
6742 * to use SLINEAR between channels, but only if there is
6743 * no direct conversion available. If generic PLC is
6744 * desired, then transcoding via SLINEAR is a requirement
6745 * even if the formats are the same.
6746 */
6748 || (ast_format_cmp(best_dst_fmt, best_src_fmt) == AST_FORMAT_CMP_NOT_EQUAL
6750
6751 int use_slin = (ast_format_cache_is_slinear(best_src_fmt)
6752 || ast_format_cache_is_slinear(best_dst_fmt))
6754
6755 if (use_slin || ast_translate_path_steps(best_dst_fmt, best_src_fmt) != 1) {
6756 int best_sample_rate = (ast_format_get_sample_rate(best_src_fmt) > ast_format_get_sample_rate(best_dst_fmt)) ?
6757 ast_format_get_sample_rate(best_src_fmt) : ast_format_get_sample_rate(best_dst_fmt);
6758
6759 /* pick the best signed linear format based upon what preserves the sample rate the best. */
6760 ao2_replace(best_src_fmt, ast_format_cache_get_slin_by_rate(best_sample_rate));
6761 }
6762 }
6763
6764 if (ast_set_read_format(from, best_src_fmt)) {
6765 ast_log(LOG_WARNING, "Unable to set read format on channel %s to %s\n",
6766 ast_channel_name(from), ast_format_get_name(best_src_fmt));
6767 return -1;
6768 }
6769 if (ast_set_write_format(to, best_src_fmt)) {
6770 ast_log(LOG_WARNING, "Unable to set write format on channel %s to %s\n",
6771 ast_channel_name(to), ast_format_get_name(best_src_fmt));
6772 return -1;
6773 }
6774 return 0;
6775}
#define ao2_replace(dst, src)
Replace one object reference with another cleaning up the original.
Definition astobj2.h:501
int ast_set_read_format(struct ast_channel *chan, struct ast_format *format)
Sets read format on channel chan.
Definition channel.c:5819
int ast_set_write_format(struct ast_channel *chan, struct ast_format *format)
Sets write format on channel chan.
Definition channel.c:5860
struct ast_format_cap * ast_channel_nativeformats(const struct ast_channel *chan)
@ AST_MEDIA_TYPE_AUDIO
Definition codec.h:32
unsigned int ast_format_get_sample_rate(const struct ast_format *format)
Get the sample rate of a media format.
Definition format.c:379
@ AST_FORMAT_CMP_NOT_EQUAL
Definition format.h:38
const char * ast_format_get_name(const struct ast_format *format)
Get the name associated with a format.
Definition format.c:334
struct ast_format * ast_format_cache_get_slin_by_rate(unsigned int rate)
Retrieve the best signed linear format given a sample rate.
int ast_format_cap_has_type(const struct ast_format_cap *cap, enum ast_media_type type)
Find out if the capabilities structure has any formats of a specific type.
Definition format_cap.c:613
#define ast_opt_transcode_via_slin
Definition options.h:128
#define ast_opt_generic_plc_on_equal_codecs
Definition options.h:146
#define ast_opt_generic_plc
Definition options.h:144
int ast_translator_best_choice(struct ast_format_cap *dst_cap, struct ast_format_cap *src_cap, struct ast_format **dst_fmt_out, struct ast_format **src_fmt_out)
Chooses the best translation path.
Definition translate.c:1676
unsigned int ast_translate_path_steps(struct ast_format *dest, struct ast_format *src)
Returns the number of steps required to convert from 'src' to 'dest'.
Definition translate.c:1810

References ao2_cleanup, ao2_replace, ast_channel_lock_both, ast_channel_name(), ast_channel_nativeformats(), ast_channel_unlock, ast_format_cache_get_slin_by_rate(), ast_format_cache_is_slinear(), ast_format_cap_has_type(), ast_format_cmp(), AST_FORMAT_CMP_NOT_EQUAL, ast_format_get_name(), ast_format_get_sample_rate(), ast_log, AST_MEDIA_TYPE_AUDIO, ast_opt_generic_plc, ast_opt_generic_plc_on_equal_codecs, ast_opt_transcode_via_slin, ast_set_read_format(), ast_set_write_format(), ast_translate_path_steps(), ast_translator_best_choice(), LOG_WARNING, NULL, and RAII_VAR.

Referenced by ast_channel_make_compatible().

◆ ast_channel_move()

int ast_channel_move ( struct ast_channel dest,
struct ast_channel source 
)

Move a channel from its current location to a new location.

Since
12

The intention of this function is to have the destination channel take on the identity of the source channel.

Note
This function is NOT intended to be used on bridged channels. If you wish to move an unbridged channel into the place of a bridged channel, then use ast_bridge_join() or ast_bridge_impart(). If you wish to move a bridged channel into the place of another bridged channel, then use ast_bridge_move().
When this function returns succesfully, the source channel is in a state where its continued use is unreliable.
absolutely NO channel locks should be held before calling this function.
Parameters
destThe place to move the source channel
sourceThe channel to move
Return values
0Success
non-zeroFailure

Definition at line 10776 of file channel.c.

10777{
10778 RAII_VAR(struct ast_json *, blob, NULL, ast_json_unref);
10780
10781 if (dest == source) {
10782 ast_log(LOG_WARNING, "Can't move channel '%s' into itself!\n",
10783 ast_channel_name(dest));
10784 return -1;
10785 }
10786
10787 ast_channel_lock_both(dest, source);
10788
10791 /* Zombies! Run! */
10793 "Can't move channel. One or both is dead (%s <-- %s)\n",
10794 ast_channel_name(dest), ast_channel_name(source));
10795 ast_channel_unlock(source);
10796 ast_channel_unlock(dest);
10797 return -1;
10798 }
10799
10800 ast_channel_masq_set(dest, source);
10801 ast_channel_masqr_set(source, dest);
10802
10803 blob = ast_json_pack("{s: s}",
10804 "newchanneluniqueid", ast_channel_uniqueid(dest));
10806
10807 ast_channel_unlock(dest);
10808 ast_channel_unlock(source);
10809
10810 channel_do_masquerade(dest, source);
10811 return 0;
10812}
ast_mutex_t lock
Definition app_sla.c:337
static void channel_do_masquerade(struct ast_channel *original, struct ast_channel *clonechan)
Masquerade a channel.
Definition channel.c:6919
static ast_mutex_t channel_move_lock
Definition channel.c:10774
void ast_channel_masqr_set(struct ast_channel *chan, struct ast_channel *value)
void ast_channel_masq_set(struct ast_channel *chan, struct ast_channel *value)
struct stasis_message_type * ast_channel_masquerade_type(void)
Message type for when a channel is being masqueraded.
void ast_channel_publish_blob(struct ast_channel *chan, struct stasis_message_type *type, struct ast_json *blob)
Publish a channel blob message.
void ast_json_unref(struct ast_json *value)
Decrease refcount on value. If refcount reaches zero, value is freed.
Definition json.c:73
struct ast_json * ast_json_pack(char const *format,...)
Helper for creating complex JSON values.
Definition json.c:612
#define SCOPED_MUTEX(varname, lock)
scoped lock specialization for mutexes
Definition lock.h:596
Abstract JSON element (object, array, string, int, ...).

References ast_channel_flags(), ast_channel_lock_both, ast_channel_masq_set(), ast_channel_masqr_set(), ast_channel_masquerade_type(), ast_channel_name(), ast_channel_publish_blob(), ast_channel_uniqueid(), ast_channel_unlock, AST_FLAG_ZOMBIE, ast_json_pack(), ast_json_unref(), ast_log, ast_test_flag, channel_do_masquerade(), channel_move_lock, lock, LOG_WARNING, NULL, RAII_VAR, and SCOPED_MUTEX.

Referenced by after_bridge_move_channel(), ast_channel_yank(), ast_do_pickup(), local_call(), and refer_incoming_invite_request().

◆ ast_channel_name_to_dial_string()

void ast_channel_name_to_dial_string ( char *  channel_name)

Removes the trailing identifiers from a channel name string.

Since
12.0.0
Parameters
channel_namestring that you wish to turn into a dial string. This string will be edited in place.

Definition at line 6901 of file channel.c.

6902{
6903 char *dash;
6904
6905 /* Truncate after the dash */
6906 dash = strrchr(channel_name, '-');
6907 if (dash) {
6908 *dash = '\0';
6909 }
6910}

Referenced by parked_user_set_parker_dial_string(), and setup_park_common_datastore().

◆ ast_channel_open_storage()

int ast_channel_open_storage ( void  )

Definition at line 8058 of file channel.c.

8059{
8062 if (rc) {
8063 ast_log(LOG_ERROR, "No channel storage backends available\n");
8064 return -1;
8065 }
8066 }
8067
8071 ast_log(LOG_ERROR, "Failed to open channel storage driver '%s'\n",
8073 return -1;
8074 }
8075
8076 return 0;
8077}
int internal_channel_set_current_storage_driver(const char *driver_name)
Definition channel.c:8085
struct ast_channelstorage_instance * ast_channelstorage_open(const struct ast_channelstorage_driver *storage_driver, const char *instance_name)
#define AST_CHANNELSTORAGE_DEFAULT_TYPE

References AST_CHANNELSTORAGE_DEFAULT_TYPE, ast_channelstorage_open(), ast_log, current_channel_storage_driver, current_channel_storage_instance, ast_channelstorage_driver::driver_name, internal_channel_set_current_storage_driver(), and LOG_ERROR.

Referenced by ast_channels_init().

◆ ast_channel_queryoption()

int ast_channel_queryoption ( struct ast_channel channel,
int  option,
void *  data,
int *  datalen,
int  block 
)

Checks the value of an option.

Query the value of an option Works similarly to setoption except only reads the options.

Definition at line 7516 of file channel.c.

7517{
7518 int res;
7519
7520 ast_channel_lock(chan);
7521 if (!ast_channel_tech(chan)->queryoption) {
7522 errno = ENOSYS;
7523 ast_channel_unlock(chan);
7524 return -1;
7525 }
7526
7527 if (block)
7528 ast_log(LOG_ERROR, "XXX Blocking not implemented yet XXX\n");
7529
7530 res = ast_channel_tech(chan)->queryoption(chan, option, data, datalen);
7531 ast_channel_unlock(chan);
7532
7533 return res;
7534}
int(*const queryoption)(struct ast_channel *chan, int option, void *data, int *datalen)
Query a given option. Called with chan locked.
Definition channel.h:800

References ast_channel_lock, ast_channel_unlock, ast_log, ast_datastore::data, errno, LOG_ERROR, and ast_channel_tech::queryoption.

Referenced by ast_channel_get_cc_agent_type(), ast_channel_get_device_name(), ast_channel_get_t38_state(), ast_unreal_queryoption(), and func_channel_read().

◆ ast_channel_queue_connected_line_update()

void ast_channel_queue_connected_line_update ( struct ast_channel chan,
const struct ast_party_connected_line connected,
const struct ast_set_party_connected_line update 
)

Queue a connected line update frame on a channel.

Since
1.8
Parameters
chanAsterisk channel to indicate connected line information
connectedConnected line information
updateWhat connected line information to update. NULL if all.

Definition at line 9212 of file channel.c.

9213{
9214 unsigned char data[1024]; /* This should be large enough */
9215 size_t datalen;
9216
9217 datalen = ast_connected_line_build_data(data, sizeof(data), connected, update);
9218 if (datalen == (size_t) -1) {
9219 return;
9220 }
9221
9223}
int ast_queue_control_data(struct ast_channel *chan, enum ast_control_frame_type control, const void *data, size_t datalen)
Queue a control frame with payload.
Definition channel.c:1296
int ast_connected_line_build_data(unsigned char *data, size_t datalen, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update)
Build the connected line information data frame.
Definition channel.c:8803
static void update(int code_size, int y, int wi, int fi, int dq, int sr, int dqsez, struct g726_state *state_ptr)
Definition codec_g726.c:367

References ast_connected_line_build_data(), AST_CONTROL_CONNECTED_LINE, ast_queue_control_data(), connected, and update().

Referenced by after_bridge_move_channel(), ast_do_pickup(), onAlerting(), onCallEstablished(), onProgress(), queue_connected_line_update(), and update_initial_connected_line().

◆ ast_channel_queue_redirecting_update()

void ast_channel_queue_redirecting_update ( struct ast_channel chan,
const struct ast_party_redirecting redirecting,
const struct ast_set_party_redirecting update 
)

Queue a redirecting update frame on a channel.

Since
1.8
Parameters
chanAsterisk channel to indicate redirecting id information
redirectingRedirecting id information
updateWhat redirecting information to update. NULL if all.

Definition at line 10403 of file channel.c.

10404{
10405 unsigned char data[1024]; /* This should be large enough */
10406 size_t datalen;
10407
10408 datalen = ast_redirecting_build_data(data, sizeof(data), redirecting, update);
10409 if (datalen == (size_t) -1) {
10410 return;
10411 }
10412
10413 ast_queue_control_data(chan, AST_CONTROL_REDIRECTING, data, datalen);
10414}
int ast_redirecting_build_data(unsigned char *data, size_t datalen, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update)
Build the redirecting id data frame.
Definition channel.c:9374

References AST_CONTROL_REDIRECTING, ast_queue_control_data(), ast_redirecting_build_data(), and update().

Referenced by set_redirecting().

◆ ast_channel_reason2str()

const char * ast_channel_reason2str ( int  reason)

return an english explanation of the code returned thru __ast_request_and_dial's 'outstate' argument

Parameters
reasonThe integer argument, usually taken from AST_CONTROL_ macros
Returns
char pointer explaining the code

Definition at line 5883 of file channel.c.

5884{
5885 switch (reason) /* the following appear to be the only ones actually returned by request_and_dial */
5886 {
5887 case 0:
5888 return "Call Failure (not BUSY, and not NO_ANSWER, maybe Circuit busy or down?)";
5889 case AST_CONTROL_HANGUP:
5890 return "Hangup";
5891 case AST_CONTROL_RING:
5892 return "Local Ring";
5894 return "Remote end Ringing";
5895 case AST_CONTROL_ANSWER:
5896 return "Remote end has Answered";
5897 case AST_CONTROL_BUSY:
5898 return "Remote end is Busy";
5900 return "Congestion (circuits busy)";
5901 default:
5902 return "Unknown Reason!!";
5903 }
5904}

References AST_CONTROL_ANSWER, AST_CONTROL_BUSY, AST_CONTROL_CONGESTION, AST_CONTROL_HANGUP, AST_CONTROL_RING, and AST_CONTROL_RINGING.

Referenced by attempt_thread().

◆ ast_channel_redirecting_sub()

int ast_channel_redirecting_sub ( struct ast_channel autoservice_chan,
struct ast_channel sub_chan,
const void *  redirecting_info,
int  is_frame 
)

Run a redirecting interception subroutine and update a channel's redirecting information.

Since
11

Whenever we want to update a channel's redirecting information, we may need to run a subroutine so that an administrator can manipulate the information before sending it out. This function both runs the subroutine specified by REDIRECTING_SEND_SUB and sends the update to the channel.

Parameters
autoservice_chanChannel to place into autoservice while the subroutine is running. It is perfectly safe for this to be NULL
sub_chanThe channel to run the subroutine on. Also the channel from which we determine which subroutine we need to run.
redirecting_infoEither an ast_party_redirecting or ast_frame pointer of type AST_CONTROL_REDIRECTING
is_frameIf true, then redirecting_info is an ast_frame pointer, otherwise it is an ast_party_redirecting pointer.
Return values
0Success
-1Either the subroutine does not exist, or there was an error while attempting to run the subroutine

Definition at line 10489 of file channel.c.

10490{
10491 const char *sub;
10492 const char *sub_args;
10493 int retval;
10494
10495 ast_channel_lock(sub_chan);
10496 sub = pbx_builtin_getvar_helper(sub_chan, "REDIRECTING_SEND_SUB");
10497 sub = ast_strdupa(S_OR(sub, ""));
10498 sub_args = pbx_builtin_getvar_helper(sub_chan, "REDIRECTING_SEND_SUB_ARGS");
10499 sub_args = ast_strdupa(S_OR(sub_args, ""));
10500
10501 if (ast_strlen_zero(sub)) {
10502 ast_channel_unlock(sub_chan);
10503 return -1;
10504 }
10505
10506 if (is_frame) {
10507 const struct ast_frame *frame = redirecting_info;
10508
10510 } else {
10511 const struct ast_party_redirecting *redirecting = redirecting_info;
10512
10514 }
10515 ast_channel_unlock(sub_chan);
10516
10518 retval = ast_app_run_sub(autoservice_chan, sub_chan, sub, sub_args, 0);
10520 if (!retval) {
10521 struct ast_party_redirecting saved_redirecting;
10522
10523 ast_party_redirecting_init(&saved_redirecting);
10524 ast_channel_lock(sub_chan);
10525 ast_party_redirecting_copy(&saved_redirecting, ast_channel_redirecting(sub_chan));
10526 ast_channel_unlock(sub_chan);
10527 ast_channel_update_redirecting(sub_chan, &saved_redirecting, NULL);
10528 ast_party_redirecting_free(&saved_redirecting);
10529 }
10530
10531 return retval;
10532}
void ast_channel_update_redirecting(struct ast_channel *chan, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update)
Indicate that the redirecting id has changed.
Definition channel.c:10390
int ast_redirecting_parse_data(const unsigned char *data, size_t datalen, struct ast_party_redirecting *redirecting)
Parse redirecting indication frame data.
Definition channel.c:9585
Redirecting Line information. RDNIS (Redirecting Directory Number Information Service) Where a call d...
Definition channel.h:524

References ast_app_run_sub(), ast_channel_lock, ast_channel_redirecting(), ast_channel_unlock, ast_channel_update_redirecting(), ast_party_redirecting_copy(), ast_party_redirecting_free(), ast_party_redirecting_init(), ast_redirecting_parse_data(), ast_strdupa, ast_strlen_zero(), channel_set_intercept_mode(), ast_frame::data, ast_frame::datalen, NULL, pbx_builtin_getvar_helper(), ast_frame::ptr, S_OR, and sub.

Referenced by bridge_channel_handle_control(), call_forward_inherit(), do_forward(), handle_frame(), wait_for_answer(), and wait_for_answer().

◆ ast_channel_register()

int ast_channel_register ( const struct ast_channel_tech tech)

Register a new telephony channel in Asterisk.

Register a channel technology (a new channel driver) Called by a channel module to register the kind of channels it supports.

Definition at line 540 of file channel.c.

541{
542 struct chanlist *chan;
543
545
547 if (!strcasecmp(tech->type, chan->tech->type)) {
548 ast_log(LOG_WARNING, "Already have a handler for type '%s'\n", tech->type);
550 return -1;
551 }
552 }
553
554 if (!(chan = ast_calloc(1, sizeof(*chan)))) {
556 return -1;
557 }
558 chan->tech = tech;
560
561 ast_debug(5, "Registered handler for '%s' (%s)\n", chan->tech->type, chan->tech->description);
562
563 ast_verb(5, "Registered channel type '%s' (%s)\n", chan->tech->type, chan->tech->description);
564
566
567 return 0;
568}
#define ast_verb(level,...)
#define AST_RWLIST_WRLOCK(head)
Write locks a list.
Definition linkedlists.h:52
#define AST_RWLIST_UNLOCK(head)
Attempts to unlock a read/write based list.
#define AST_RWLIST_TRAVERSE
#define AST_RWLIST_INSERT_HEAD
const char *const type
Definition channel.h:649
const char *const description
Definition channel.h:650
const struct ast_channel_tech * tech
the list of registered channel types
Definition channel.c:125
List of channel drivers.
Definition app_dial.c:804
struct ast_channel * chan
Definition app_dial.c:806
struct chanlist::@348 list
const char * tech
Definition app_dial.c:810

References ast_calloc, ast_debug, ast_log, AST_RWLIST_INSERT_HEAD, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, ast_verb, chanlist::chan, ast_channel_tech::description, chanlist::list, LOG_WARNING, chanlist::tech, ast_channel::tech, and ast_channel_tech::type.

Referenced by ast_channels_init(), ast_local_init(), load_module(), load_module(), load_module(), load_module(), load_module(), load_module(), load_module(), load_module(), load_module(), load_module(), load_module(), load_module(), load_module(), load_module(), load_module(), load_module(), load_module(), and register_channel_tech().

◆ ast_channel_release()

struct ast_channel * ast_channel_release ( struct ast_channel chan)

Unlink and release reference to a channel.

This function will unlink the channel from the global channels container if it is still there and also release the current reference to the channel.

Return values
NULLconvenient for clearing invalid pointers
Note
Absolutely NO channel locks should be held before calling this function.
Since
1.8

Definition at line 1571 of file channel.c.

1572{
1573 /* Safe, even if already unlinked. */
1574 ast_channel_unlink(chan);
1575 return ast_channel_unref(chan);
1576}
void ast_channel_unlink(struct ast_channel *chan)
Remove a channel from the global channels container.
Definition channel.c:10639

References ast_channel_unlink(), and ast_channel_unref.

Referenced by ast_iax2_new(), ast_unreal_new_channels(), destroy_msg_q_chan(), do_notify(), rec_request(), safe_channel_release(), safe_channel_release(), safe_channel_release(), safe_channel_release(), and safe_channel_release().

◆ ast_channel_req_accountcodes()

void ast_channel_req_accountcodes ( struct ast_channel chan,
const struct ast_channel requestor,
enum ast_channel_requestor_relationship  relationship 
)

Setup new channel accountcodes from the requestor channel after ast_request().

Since
13.0.0
Parameters
chanNew channel to get accountcodes setup.
requestorRequesting channel to get accountcodes from.
relationshipWhat the new channel was created for.
Precondition
The chan and requestor channels are already locked.
Note
Pre-existing accountcodes on chan will be overwritten.

Definition at line 6491 of file channel.c.

6492{
6493 channel_req_accountcodes(chan, requestor, relationship, 0);
6494}
static void channel_req_accountcodes(struct ast_channel *chan, const struct ast_channel *requestor, enum ast_channel_requestor_relationship relationship, int precious)
Definition channel.c:6433

References channel_req_accountcodes().

Referenced by __ast_request_and_dial(), ast_ari_channels_dial(), ast_call_forward(), attended_transfer_bridge(), begin_dial_prerun(), blind_transfer_bridge(), common_recall_channel_setup(), dial_exec_full(), dial_transfer(), do_forward(), findmeexec(), park_local_transfer(), and wait_for_answer().

◆ ast_channel_req_accountcodes_precious()

void ast_channel_req_accountcodes_precious ( struct ast_channel chan,
const struct ast_channel requestor,
enum ast_channel_requestor_relationship  relationship 
)

Setup new channel accountcodes from the requestor channel after ast_request().

Since
13.0.0
Parameters
chanNew channel to get accountcodes setup.
requestorRequesting channel to get accountcodes from.
relationshipWhat the new channel was created for.
Precondition
The chan and requestor channels are already locked.
Note
Pre-existing accountcodes on chan will not be overwritten.

Definition at line 6496 of file channel.c.

6497{
6498 channel_req_accountcodes(chan, requestor, relationship, 1);
6499}

References channel_req_accountcodes().

Referenced by ring_entry().

◆ ast_channel_request_stream_topology_change()

int ast_channel_request_stream_topology_change ( struct ast_channel chan,
struct ast_stream_topology topology,
void *  change_source 
)

Request that the stream topology of a channel change.

Parameters
chanThe channel to change
topologyThe new stream topology
change_sourceThe source that initiated the change
Note
Absolutely NO channel locks should be held before calling this function.
Return values
0request has been accepted to be attempted
-1request could not be attempted
Note
This function initiates an asynchronous request to change the stream topology. It is not guaranteed that the topology will change and until an AST_CONTROL_STREAM_TOPOLOGY_CHANGED frame is received from the channel the current handler of the channel must tolerate the stream topology as it currently exists.
This interface is provided for applications and resources to request that the topology change. It is not for use by the channel driver itself.

Definition at line 11076 of file channel.c.

11078{
11079 int res;
11080
11081 ast_assert(chan != NULL);
11082 ast_assert(topology != NULL);
11083
11084 ast_channel_lock(chan);
11086 ast_channel_unlock(chan);
11087 return -1;
11088 }
11089
11091 ast_debug(2, "%s: Topologies already match. Current: %s Requested: %s\n",
11092 ast_channel_name(chan),
11094 ast_str_tmp(256, ast_stream_topology_to_str(topology, &STR_TMP)));
11095 ast_channel_unlock(chan);
11096 return 0;
11097 }
11098
11100
11101 res = ast_channel_tech(chan)->indicate(chan, AST_CONTROL_STREAM_TOPOLOGY_REQUEST_CHANGE, topology, sizeof(topology));
11102 ast_channel_unlock(chan);
11103 return res;
11104}
static int indicate(void *data)
int ast_channel_is_multistream(struct ast_channel *chan)
Determine if a channel is multi-stream capable.
void ast_channel_internal_set_stream_topology_change_source(struct ast_channel *chan, void *change_source)
const char * ast_stream_topology_to_str(const struct ast_stream_topology *topology, struct ast_str **buf)
Get a string representing the topology for debugging/display purposes.
Definition stream.c:939
int ast_stream_topology_equal(const struct ast_stream_topology *left, const struct ast_stream_topology *right)
Compare two stream topologies to see if they are equal.
Definition stream.c:699
#define ast_str_tmp(init_len, __expr)
Provides a temporary ast_str and returns a copy of its buffer.
Definition strings.h:1189
int(*const indicate)(struct ast_channel *c, int condition, const void *data, size_t datalen)
Indicate a particular condition (e.g. AST_CONTROL_BUSY or AST_CONTROL_RINGING or AST_CONTROL_CONGESTI...
Definition channel.h:791

References ast_assert, ast_channel_get_stream_topology(), ast_channel_internal_set_stream_topology_change_source(), ast_channel_is_multistream(), ast_channel_lock, ast_channel_name(), ast_channel_unlock, AST_CONTROL_STREAM_TOPOLOGY_REQUEST_CHANGE, ast_debug, ast_str_tmp, ast_stream_topology_equal(), ast_stream_topology_to_str(), indicate(), ast_channel_tech::indicate, and NULL.

Referenced by AST_TEST_DEFINE(), AST_TEST_DEFINE(), native_rtp_bridge_join(), native_rtp_stream_topology_changed(), sfu_topologies_on_join(), sfu_topologies_on_leave(), sfu_topologies_on_source_change(), simple_bridge_join(), simple_bridge_stream_topology_changed(), softmix_bridge_stream_sources_update(), and stream_echo_perform().

◆ ast_channel_sendhtml()

int ast_channel_sendhtml ( struct ast_channel channel,
int  subclass,
const char *  data,
int  datalen 
)

Sends HTML on given channel Send HTML or URL on link.

Returns
0 on success or -1 on failure

Definition at line 6685 of file channel.c.

6686{
6687 if (ast_channel_tech(chan)->send_html)
6688 return ast_channel_tech(chan)->send_html(chan, subclass, data, datalen);
6689 return -1;
6690}
int(*const send_html)(struct ast_channel *chan, int subclass, const char *data, int len)
Send HTML data.
Definition channel.h:782

References ast_channel_tech::send_html.

Referenced by ast_channel_sendurl(), and wait_for_answer().

◆ ast_channel_sendurl()

int ast_channel_sendurl ( struct ast_channel channel,
const char *  url 
)

Sends a URL on a given link Send URL on link.

Returns
0 on success or -1 on failure

Definition at line 6692 of file channel.c.

6693{
6694 return ast_channel_sendhtml(chan, AST_HTML_URL, url, strlen(url) + 1);
6695}
int ast_channel_sendhtml(struct ast_channel *chan, int subclass, const char *data, int datalen)
Sends HTML on given channel Send HTML or URL on link.
Definition channel.c:6685
#define AST_HTML_URL
static char url[512]

References ast_channel_sendhtml(), AST_HTML_URL, and url.

Referenced by dial_exec_full(), and try_calling().

◆ ast_channel_set_ari_vars()

void ast_channel_set_ari_vars ( size_t  varc,
char **  vars 
)

Sets the variables to be stored in the ari_vars field of all snapshots.

Since
14.2.0
Parameters
varcNumber of variable names.
varsArray of variable names.

Definition at line 7939 of file channel.c.

7940{
7941 channel_set_external_vars(&ari_vars, varc, vars);
7942}
static void channel_set_external_vars(struct external_vars *channelvars, size_t varc, char **vars)
Definition channel.c:7912

References ari_vars, and channel_set_external_vars().

Referenced by general_apply().

◆ ast_channel_set_caller()

void ast_channel_set_caller ( struct ast_channel chan,
const struct ast_party_caller caller,
const struct ast_set_party_caller update 
)

Set the caller id information in the Asterisk channel.

Since
1.8
Parameters
chanAsterisk channel to set caller id information
callerCaller id information
updateWhat caller information to update. NULL if all.
Note
The channel does not need to be locked before calling this function.

Definition at line 7433 of file channel.c.

7434{
7435 if (ast_channel_caller(chan) == caller) {
7436 /* Don't set to self */
7437 return;
7438 }
7439
7440 ast_channel_lock(chan);
7443 ast_channel_unlock(chan);
7444}
void ast_party_caller_set(struct ast_party_caller *dest, const struct ast_party_caller *src, const struct ast_set_party_caller *update)
Set the caller information based on another caller source.
Definition channel.c:1994
void ast_channel_snapshot_invalidate_segment(struct ast_channel *chan, enum ast_channel_snapshot_segment_invalidation segment)
Invalidate a channel snapshot segment from being reused.
@ AST_CHANNEL_SNAPSHOT_INVALIDATE_CALLER

References ast_channel_caller(), ast_channel_lock, AST_CHANNEL_SNAPSHOT_INVALIDATE_CALLER, ast_channel_snapshot_invalidate_segment(), ast_channel_unlock, ast_party_caller_set(), and update().

◆ ast_channel_set_caller_event()

void ast_channel_set_caller_event ( struct ast_channel chan,
const struct ast_party_caller caller,
const struct ast_set_party_caller update 
)

Set the caller id information in the Asterisk channel and generate an AMI event if the caller id name or number changed.

Since
1.8
Parameters
chanAsterisk channel to set caller id information
callerCaller id information
updateWhat caller information to update. NULL if all.
Note
The channel does not need to be locked before calling this function.

Definition at line 7446 of file channel.c.

7447{
7448 if (ast_channel_caller(chan) == caller) {
7449 /* Don't set to self */
7450 return;
7451 }
7452
7453 ast_channel_lock(chan);
7457 ast_channel_unlock(chan);
7458}
void ast_channel_publish_snapshot(struct ast_channel *chan)
Publish a ast_channel_snapshot for a channel.

References ast_channel_caller(), ast_channel_lock, ast_channel_publish_snapshot(), AST_CHANNEL_SNAPSHOT_INVALIDATE_CALLER, ast_channel_snapshot_invalidate_segment(), ast_channel_unlock, ast_party_caller_set(), and update().

Referenced by callerid_write(), dial_exec_full(), do_forward(), queue_connected_line_update(), and ring_entry().

◆ ast_channel_set_connected_line()

void ast_channel_set_connected_line ( struct ast_channel chan,
const struct ast_party_connected_line connected,
const struct ast_set_party_connected_line update 
)

Set the connected line information in the Asterisk channel.

Since
1.8
Parameters
chanAsterisk channel to set connected line information
connectedConnected line information
updateWhat connected line information to update. NULL if all.
Note
The channel does not need to be locked before calling this function.

Definition at line 8414 of file channel.c.

8415{
8416 if (ast_channel_connected(chan) == connected) {
8417 /* Don't set to self */
8418 return;
8419 }
8420
8421 ast_channel_lock(chan);
8425 ast_channel_unlock(chan);
8426}
void ast_party_connected_line_set(struct ast_party_connected_line *dest, const struct ast_party_connected_line *src, const struct ast_set_party_connected_line *update)
Set the connected line information based on another connected line source.
Definition channel.c:2041
@ AST_CHANNEL_SNAPSHOT_INVALIDATE_CONNECTED

References ast_channel_connected(), ast_channel_lock, ast_channel_publish_snapshot(), AST_CHANNEL_SNAPSHOT_INVALIDATE_CONNECTED, ast_channel_snapshot_invalidate_segment(), ast_channel_unlock, ast_party_connected_line_set(), connected, and update().

Referenced by __ast_request_and_dial(), ari_channels_handle_originate_with_id(), connectedline_write(), dial_exec_full(), indicate_connected_line(), and pbx_outgoing_attempt().

◆ ast_channel_set_fd()

void ast_channel_set_fd ( struct ast_channel chan,
int  which,
int  fd 
)

◆ ast_channel_set_flag()

void ast_channel_set_flag ( struct ast_channel chan,
unsigned int  flag 
)

Set a flag on a channel.

Since
13.17.0
Parameters
chanThe channel to set the flag on
flagThe flag to set
Note
This will lock the channel internally. If the channel is already locked it is still safe to call.

Definition at line 11137 of file channel.c.

11138{
11139 ast_channel_lock(chan);
11141 ast_channel_unlock(chan);
11142}

References ast_channel_flags(), ast_channel_lock, ast_channel_unlock, and ast_set_flag.

Referenced by ast_call_forward(), ast_waitfordigit_full(), channel_spy(), common_exec(), dial_exec_full(), disa_exec(), do_broadcast(), and waitstream_core().

◆ ast_channel_set_manager_vars()

void ast_channel_set_manager_vars ( size_t  varc,
char **  vars 
)

Sets the variables to be stored in the manager_vars field of all snapshots.

Since
12
Parameters
varcNumber of variable names.
varsArray of variable names.

Definition at line 7934 of file channel.c.

7935{
7936 channel_set_external_vars(&ami_vars, varc, vars);
7937}

References ami_vars, and channel_set_external_vars().

Referenced by load_channelvars().

◆ ast_channel_set_redirecting()

void ast_channel_set_redirecting ( struct ast_channel chan,
const struct ast_party_redirecting redirecting,
const struct ast_set_party_redirecting update 
)

Set the redirecting id information in the Asterisk channel.

Since
1.8
Parameters
chanAsterisk channel to set redirecting id information
redirectingRedirecting id information
updateWhat redirecting information to update. NULL if all.
Note
The channel does not need to be locked before calling this function.

Definition at line 9225 of file channel.c.

9226{
9227 if (ast_channel_redirecting(chan) == redirecting) {
9228 /* Don't set to self */
9229 return;
9230 }
9231
9232 ast_channel_lock(chan);
9236 ast_channel_unlock(chan);
9237}
void ast_party_redirecting_set(struct ast_party_redirecting *dest, const struct ast_party_redirecting *src, const struct ast_set_party_redirecting *update)
Set the redirecting information based on another redirecting source.
Definition channel.c:2153

References ast_channel_lock, ast_channel_publish_snapshot(), ast_channel_redirecting(), AST_CHANNEL_SNAPSHOT_INVALIDATE_CALLER, ast_channel_snapshot_invalidate_segment(), ast_channel_unlock, ast_party_redirecting_set(), and update().

Referenced by AST_TEST_DEFINE(), indicate_redirecting(), redirecting_write(), and set_redirecting().

◆ ast_channel_setoption()

int ast_channel_setoption ( struct ast_channel channel,
int  option,
void *  data,
int  datalen,
int  block 
)

Sets an option on a channel.

Parameters
channelchannel to set options on
optionoption to change
datadata specific to option
datalenlength of the data
blockblocking or not

Set an option on a channel (see frame.h), optionally blocking awaiting the reply

Returns
0 on success and -1 on failure

Definition at line 7496 of file channel.c.

7497{
7498 int res;
7499
7500 ast_channel_lock(chan);
7501 if (!ast_channel_tech(chan)->setoption) {
7502 errno = ENOSYS;
7503 ast_channel_unlock(chan);
7504 return -1;
7505 }
7506
7507 if (block)
7508 ast_log(LOG_ERROR, "XXX Blocking not implemented yet XXX\n");
7509
7510 res = ast_channel_tech(chan)->setoption(chan, option, data, datalen);
7511 ast_channel_unlock(chan);
7512
7513 return res;
7514}
int(*const setoption)(struct ast_channel *chan, int option, void *data, int datalen)
Set a given option. Called with chan locked.
Definition channel.h:797

References ast_channel_lock, ast_channel_unlock, ast_log, ast_datastore::data, errno, LOG_ERROR, and ast_channel_tech::setoption.

Referenced by analog_hangup(), bridge_channel_handle_control(), common_exec(), conf_run(), dahdi_hangup(), dial_exec_full(), func_channel_write(), func_channel_write_real(), handle_tddmode(), play_record_review(), play_record_review(), reset_volumes(), set_format(), set_listen_volume(), set_security_requirements(), set_talk_volume(), try_calling(), and vm_forwardoptions().

◆ ast_channel_setwhentohangup_tv()

void ast_channel_setwhentohangup_tv ( struct ast_channel chan,
struct timeval  offset 
)

Set when to hangup channel.

Set when to hang a channel up.

Definition at line 511 of file channel.c.

512{
513 if (ast_tvzero(offset)) {
514 ast_channel_whentohangup_set(chan, &offset);
515 } else {
516 struct timeval tv = ast_tvadd(offset, ast_tvnow());
518 }
520 return;
521}
void ast_channel_whentohangup_set(struct ast_channel *chan, struct timeval *value)

References ast_channel_whentohangup_set(), ast_null_frame, ast_queue_frame(), ast_tvadd(), ast_tvnow(), and ast_tvzero().

Referenced by action_timeout(), handle_autohangup(), and timeout_write().

◆ ast_channel_softhangup_cb()

static int ast_channel_softhangup_cb ( void *  obj,
void *  arg,
void *  data,
int  flags 
)
static

Definition at line 485 of file channel.c.

486{
487 struct ast_channel *chan = obj;
488
490
491 return 0;
492}
int ast_softhangup(struct ast_channel *chan, int cause)
Softly hangup a channel, lock.
Definition channel.c:2462
@ AST_SOFTHANGUP_SHUTDOWN
Definition channel.h:1151

References ast_softhangup(), and AST_SOFTHANGUP_SHUTDOWN.

Referenced by ast_softhangup_all().

◆ ast_channel_softhangup_withcause_locked()

void ast_channel_softhangup_withcause_locked ( struct ast_channel chan,
int  causecode 
)

Lock the given channel, then request softhangup on the channel with the given causecode.

Parameters
chanchannel on which to hang up
causecodecause code to use (Zero if don't use cause code)

Definition at line 469 of file channel.c.

470{
471 ast_channel_lock(chan);
472
473 if (causecode > 0) {
474 ast_debug(1, "Setting hangupcause of channel %s to %d (is %d now)\n",
475 ast_channel_name(chan), causecode, ast_channel_hangupcause(chan));
476
477 ast_channel_hangupcause_set(chan, causecode);
478 }
479
481
482 ast_channel_unlock(chan);
483}
int ast_softhangup_nolock(struct ast_channel *chan, int cause)
Softly hangup a channel, don't lock.
Definition channel.c:2449
@ AST_SOFTHANGUP_EXPLICIT
Definition channel.h:1168
int ast_channel_hangupcause(const struct ast_channel *chan)

References ast_channel_hangupcause(), ast_channel_hangupcause_set(), ast_channel_lock, ast_channel_name(), ast_channel_unlock, ast_debug, AST_SOFTHANGUP_EXPLICIT, and ast_softhangup_nolock().

Referenced by action_hangup().

◆ ast_channel_start_silence_generator()

struct ast_silence_generator * ast_channel_start_silence_generator ( struct ast_channel chan)

Starts a silence generator on the given channel.

Parameters
chanThe channel to generate silence on
Returns
An ast_silence_generator pointer, or NULL if an error occurs

This function will cause SLINEAR silence to be generated on the supplied channel until it is disabled; if the channel cannot be put into SLINEAR mode then the function will fail.

Note
The pointer returned by this function must be preserved and passed to ast_channel_stop_silence_generator when you wish to stop the silence generation.

Definition at line 8270 of file channel.c.

8271{
8273
8274 if (!(state = ast_calloc(1, sizeof(*state)))) {
8275 return NULL;
8276 }
8277
8278 state->old_write_format = ao2_bump(ast_channel_writeformat(chan));
8279
8280 if (ast_set_write_format(chan, ast_format_slin) < 0) {
8281 ast_log(LOG_ERROR, "Could not set write format to SLINEAR\n");
8282 ast_free(state);
8283 return NULL;
8284 }
8285
8287
8288 ast_debug(1, "Started silence generator on '%s'\n", ast_channel_name(chan));
8289
8290 return state;
8291}
#define ao2_bump(obj)
Bump refcount on an AO2 object by one, returning the object.
Definition astobj2.h:480
int ast_activate_generator(struct ast_channel *chan, struct ast_generator *gen, void *params)
Definition channel.c:2989
static struct ast_generator silence_generator
Definition channel.c:8260
struct ast_format * ast_channel_writeformat(struct ast_channel *chan)
struct ast_format * ast_format_slin
Built-in cached signed linear 8kHz format.

References ao2_bump, ast_activate_generator(), ast_calloc, ast_channel_name(), ast_channel_writeformat(), ast_debug, ast_format_slin, ast_free, ast_log, ast_set_write_format(), LOG_ERROR, NULL, and silence_generator.

Referenced by __ast_play_and_record(), app_control_silence_start(), ast_readstring_full(), channel_spy(), control_streamfile(), do_broadcast(), dtmf_stream(), handle_recordfile(), mf_stream(), participant_entertainment_start(), record_exec(), safe_sleep_conditional(), sf_stream(), sub_start_silence(), waitfor_exec(), and waitforring_exec().

◆ ast_channel_stop_silence_generator()

void ast_channel_stop_silence_generator ( struct ast_channel chan,
struct ast_silence_generator state 
)

Stops a previously-started silence generator on the given channel.

Parameters
chanThe channel to operate on
stateThe ast_silence_generator pointer return by a previous call to ast_channel_start_silence_generator.

This function will stop the operating silence generator and return the channel to its previous write format.

Definition at line 8316 of file channel.c.

8317{
8318 if (!state) {
8319 return;
8320 }
8321
8322 if (deactivate_silence_generator(chan)) {
8323 ast_debug(1, "Stopped silence generator on '%s'\n", ast_channel_name(chan));
8324 if (ast_set_write_format(chan, state->old_write_format) < 0) {
8325 ast_log(LOG_ERROR, "Could not return write format to its original state\n");
8326 }
8327 }
8328 ao2_cleanup(state->old_write_format);
8329 ast_free(state);
8330}
static int deactivate_silence_generator(struct ast_channel *chan)
Definition channel.c:8293

References ao2_cleanup, ast_channel_name(), ast_debug, ast_free, ast_log, ast_set_write_format(), deactivate_silence_generator(), and LOG_ERROR.

Referenced by __ast_play_and_record(), app_control_silence_start(), ast_readstring_full(), channel_spy(), control_silence_stop_now(), control_streamfile(), do_broadcast(), dtmf_stream(), handle_recordfile(), mf_stream(), participant_entertainment_stop(), record_exec(), safe_sleep_conditional(), sf_stream(), sub_stop_silence(), waitfor_exec(), and waitforring_exec().

◆ ast_channel_stream_topology_changed()

int ast_channel_stream_topology_changed ( struct ast_channel chan,
struct ast_stream_topology topology 
)

Provide notice to a channel that the stream topology has changed.

Parameters
chanThe channel to provide notice to
topologyThe new stream topology
Precondition
chan is locked Absolutely NO other channels can be locked.
Return values
0success
-1failure
Note
This interface is provided for applications and resources to accept a topology change. It is not for use by the channel driver itself.

Definition at line 11106 of file channel.c.

11107{
11108 ast_assert(chan != NULL);
11109 ast_assert(topology != NULL);
11110
11112 return -1;
11113 }
11114
11115 return ast_channel_tech(chan)->indicate(chan, AST_CONTROL_STREAM_TOPOLOGY_CHANGED, topology, sizeof(topology));
11116}

References ast_assert, ast_channel_is_multistream(), AST_CONTROL_STREAM_TOPOLOGY_CHANGED, indicate(), ast_channel_tech::indicate, and NULL.

Referenced by __ast_read(), AST_TEST_DEFINE(), and AST_TEST_DEFINE().

◆ ast_channel_stream_topology_changed_externally()

int ast_channel_stream_topology_changed_externally ( struct ast_channel chan)

Provide notice from a channel that the topology has changed on it as a result of the remote party renegotiating.

Parameters
chanThe channel to provide notice from
Return values
0success
-1failure
Note
This interface is provided for channels to provide notice that a topology change has occurred as a result of a remote party renegotiating the stream topology.

Definition at line 11118 of file channel.c.

11119{
11120 int res;
11122
11123 ast_assert(chan != NULL);
11124
11125 if (!ast_channel_is_multistream(chan)) {
11126 return -1;
11127 }
11128
11129 ast_channel_lock(chan);
11131 res = ast_queue_frame(chan, &f);
11132 ast_channel_unlock(chan);
11133
11134 return res;
11135}
static const char ast_stream_topology_changed_external[]
Set as the change source reason when a channel stream topology has been changed externally as a resul...
Definition channel.h:223

References ast_assert, ast_channel_internal_set_stream_topology_change_source(), ast_channel_is_multistream(), ast_channel_lock, ast_channel_unlock, AST_CONTROL_STREAM_TOPOLOGY_CHANGED, AST_FRAME_CONTROL, ast_queue_frame(), ast_stream_topology_changed_external, ast_frame_subclass::integer, NULL, and ast_frame::subclass.

Referenced by handle_negotiated_sdp(), and unreal_colp_stream_topology_request_change().

◆ ast_channel_string2amaflag()

enum ama_flags ast_channel_string2amaflag ( const char *  flag)

Convert a string to a detail record AMA flag.

Since
12
Parameters
flagstring form of flag
Return values
theenum (integer) form of the flag

Definition at line 4416 of file channel.c.

4417{
4418 if (!strcasecmp(flag, "default"))
4419 return DEFAULT_AMA_FLAGS;
4420 if (!strcasecmp(flag, "omit"))
4421 return AST_AMA_OMIT;
4422 if (!strcasecmp(flag, "billing"))
4423 return AST_AMA_BILLING;
4424 if (!strcasecmp(flag, "documentation"))
4425 return AST_AMA_DOCUMENTATION;
4426 return AST_AMA_NONE;
4427}

References AST_AMA_BILLING, AST_AMA_DOCUMENTATION, AST_AMA_NONE, AST_AMA_OMIT, and DEFAULT_AMA_FLAGS.

Referenced by build_device(), build_peer(), build_user(), build_user(), cdr_write(), func_channel_write_real(), process_dahdi(), reload_config(), and set_config().

◆ ast_channel_supports_html()

int ast_channel_supports_html ( struct ast_channel channel)

Checks for HTML support on a channel.

Returns
0 if channel does not support HTML or non-zero if it does

Definition at line 6680 of file channel.c.

6681{
6682 return (ast_channel_tech(chan)->send_html) ? 1 : 0;
6683}

Referenced by dial_exec_full(), and try_calling().

◆ ast_channel_suppress()

int ast_channel_suppress ( struct ast_channel chan,
unsigned int  direction,
enum ast_frame_type  frametype 
)

Suppress passing of a frame type on a channel.

Note
The channel should be locked before calling this function.
Parameters
chanThe channel to suppress
directionThe direction in which to suppress
frametypeThe type of frame (AST_FRAME_VOICE, etc) to suppress
Return values
0Success
-1Failure

Definition at line 10887 of file channel.c.

10888{
10889 struct suppress_data *suppress;
10890 const struct ast_datastore_info *datastore_info = NULL;
10891 struct ast_datastore *datastore = NULL;
10892 struct ast_framehook_interface interface = {
10894 .event_cb = suppress_framehook_event_cb,
10895 .destroy_cb = suppress_framehook_destroy_cb,
10896 .chan_fixup_cb = suppress_framehook_fixup_cb,
10897 };
10898 int framehook_id;
10899
10900 if (!(datastore_info = suppress_get_datastore_information(frametype))) {
10901 ast_log(LOG_WARNING, "Attempted to suppress an unsupported frame type (%u).\n", frametype);
10902 return -1;
10903 }
10904
10905 if ((datastore = ast_channel_datastore_find(chan, datastore_info, NULL))) {
10906 suppress = datastore->data;
10907 suppress->direction |= direction;
10908 return 0;
10909 }
10910
10911 if (!(suppress = ao2_alloc(sizeof(*suppress), NULL))) {
10912 ast_log(LOG_WARNING, "Failed to allocate data while attempting to suppress a stream.\n");
10913 return -1;
10914 }
10915
10916 suppress->frametype = frametype;
10917 suppress->direction |= direction;
10918
10919 interface.data = suppress;
10920
10921 framehook_id = ast_framehook_attach(chan, &interface);
10922 if (framehook_id < 0) {
10923 /* Hook attach failed. Get rid of the evidence. */
10924 ast_log(LOG_WARNING, "Failed to attach framehook while attempting to suppress a stream.\n");
10925 ao2_ref(suppress, -1);
10926 return -1;
10927 }
10928
10929 /* One ref for the framehook */
10930 ao2_ref(suppress, +1);
10931
10932 suppress->framehook_id = framehook_id;
10933
10934 if (!(datastore = ast_datastore_alloc(datastore_info, NULL))) {
10935 ast_log(LOG_WARNING, "Failed to allocate datastore while attempting to suppress a stream.\n");
10936 ast_framehook_detach(chan, framehook_id);
10937 ao2_ref(suppress, -1);
10938 return -1;
10939 }
10940
10941 /* the ref provided by the allocation is taken by the datastore */
10942 datastore->data = suppress;
10943
10944 ast_channel_datastore_add(chan, datastore);
10945
10946 return 0;
10947}
static void suppress_framehook_fixup_cb(void *data, int framehook_id, struct ast_channel *old_chan, struct ast_channel *new_chan)
Definition channel.c:10835
static const struct ast_datastore_info * suppress_get_datastore_information(enum ast_frame_type frametype)
Definition channel.c:10877
static void suppress_framehook_destroy_cb(void *data)
Definition channel.c:10824
static struct ast_frame * suppress_framehook_event_cb(struct ast_channel *chan, struct ast_frame *frame, enum ast_framehook_event event, void *data)
Definition channel.c:10842
int ast_framehook_attach(struct ast_channel *chan, struct ast_framehook_interface *i)
Attach an framehook onto a channel for frame interception.
Definition framehook.c:132
int ast_framehook_detach(struct ast_channel *chan, int framehook_id)
Detach an framehook from a channel.
Definition framehook.c:177
#define AST_FRAMEHOOK_INTERFACE_VERSION
Definition framehook.h:227
direction
Structure for a data store type.
Definition datastore.h:31
enum ast_frame_type frametype
Definition channel.c:10830
unsigned int direction
Definition channel.c:10831

References ao2_alloc, ao2_ref, ast_channel_datastore_add(), ast_channel_datastore_find(), ast_datastore_alloc, ast_framehook_attach(), ast_framehook_detach(), AST_FRAMEHOOK_INTERFACE_VERSION, ast_log, ast_datastore::data, ast_framehook_interface::data, suppress_data::direction, suppress_data::framehook_id, suppress_data::frametype, LOG_WARNING, NULL, suppress_framehook_destroy_cb(), suppress_framehook_event_cb(), suppress_framehook_fixup_cb(), suppress_get_datastore_information(), and ast_framehook_interface::version.

Referenced by app_control_mute(), and mute_channel().

◆ ast_channel_undefer_dtmf()

void ast_channel_undefer_dtmf ( struct ast_channel chan)

Unset defer DTMF flag on channel.

Undo defer. ast_read will return any DTMF characters that were queued

Definition at line 1329 of file channel.c.

1330{
1331 if (chan) {
1333 }
1334}
void ast_channel_clear_flag(struct ast_channel *chan, unsigned int flag)
Clear a flag on a channel.
Definition channel.c:11144

References ast_channel_clear_flag(), and AST_FLAG_DEFER_DTMF.

Referenced by __adsi_transmit_messages().

◆ ast_channel_unlink()

void ast_channel_unlink ( struct ast_channel chan)

Remove a channel from the global channels container.

Parameters
chanchannel to remove

In a case where it is desired that a channel not be available in any lookups in the global channels conatiner, use this function.

Definition at line 10639 of file channel.c.

References CHANNELSTORAGE_API, current_channel_storage_instance, and remove.

Referenced by ast_channel_release(), ast_hangup(), and create_msg_q_chan().

◆ ast_channel_unregister()

void ast_channel_unregister ( const struct ast_channel_tech tech)

◆ ast_channel_unsuppress()

int ast_channel_unsuppress ( struct ast_channel chan,
unsigned int  direction,
enum ast_frame_type  frametype 
)

Stop suppressing of a frame type on a channel.

Note
The channel should be locked before calling this function.
Parameters
chanThe channel to stop suppressing
directionThe direction in which to stop suppressing
frametypeThe type of frame (AST_FRAME_VOICE, etc) to stop suppressing
Return values
0Success
-1Failure

Definition at line 10949 of file channel.c.

10950{
10951 const struct ast_datastore_info *datastore_info = NULL;
10952 struct ast_datastore *datastore = NULL;
10953 struct suppress_data *suppress;
10954
10955 if (!(datastore_info = suppress_get_datastore_information(frametype))) {
10956 ast_log(LOG_WARNING, "Attempted to unsuppress an unsupported frame type (%u).\n", frametype);
10957 return -1;
10958 }
10959
10960 if (!(datastore = ast_channel_datastore_find(chan, datastore_info, NULL))) {
10961 /* Nothing to do! */
10962 return 0;
10963 }
10964
10965 suppress = datastore->data;
10966
10967 suppress->direction &= ~(direction);
10968
10969 if (suppress->direction == 0) {
10970 /* Nothing left to suppress. Bye! */
10971 ast_framehook_detach(chan, suppress->framehook_id);
10972 ast_channel_datastore_remove(chan, datastore);
10973 ast_datastore_free(datastore);
10974 }
10975
10976 return 0;
10977}

References ast_channel_datastore_find(), ast_channel_datastore_remove(), ast_datastore_free(), ast_framehook_detach(), ast_log, ast_datastore::data, suppress_data::direction, suppress_data::framehook_id, suppress_data::frametype, LOG_WARNING, NULL, and suppress_get_datastore_information().

Referenced by app_control_unmute(), and mute_channel().

◆ ast_channel_update_connected_line()

void ast_channel_update_connected_line ( struct ast_channel chan,
const struct ast_party_connected_line connected,
const struct ast_set_party_connected_line update 
)

Indicate that the connected line information has changed.

Since
1.8
Parameters
chanAsterisk channel to indicate connected line information
connectedConnected line information
updateWhat connected line information to update. NULL if all.

Definition at line 9199 of file channel.c.

9200{
9201 unsigned char data[1024]; /* This should be large enough */
9202 size_t datalen;
9203
9204 datalen = ast_connected_line_build_data(data, sizeof(data), connected, update);
9205 if (datalen == (size_t) -1) {
9206 return;
9207 }
9208
9209 ast_indicate_data(chan, AST_CONTROL_CONNECTED_LINE, data, datalen);
9210}

References ast_connected_line_build_data(), AST_CONTROL_CONNECTED_LINE, ast_indicate_data(), connected, and update().

Referenced by agent_run(), app_exec(), ast_channel_connected_line_sub(), ast_do_pickup(), connectedline_write(), update_connected_line_from_peer(), update_connected_line_from_peer(), wait_for_answer(), and wait_for_answer().

◆ ast_channel_update_redirecting()

void ast_channel_update_redirecting ( struct ast_channel chan,
const struct ast_party_redirecting redirecting,
const struct ast_set_party_redirecting update 
)

Indicate that the redirecting id has changed.

Since
1.8
Parameters
chanAsterisk channel to indicate redirecting id information
redirectingRedirecting id information
updateWhat redirecting information to update. NULL if all.

Definition at line 10390 of file channel.c.

10391{
10392 unsigned char data[1024]; /* This should be large enough */
10393 size_t datalen;
10394
10395 datalen = ast_redirecting_build_data(data, sizeof(data), redirecting, update);
10396 if (datalen == (size_t) -1) {
10397 return;
10398 }
10399
10400 ast_indicate_data(chan, AST_CONTROL_REDIRECTING, data, datalen);
10401}

References AST_CONTROL_REDIRECTING, ast_indicate_data(), ast_redirecting_build_data(), and update().

Referenced by ast_channel_redirecting_sub(), call_forward_inherit(), do_forward(), redirecting_write(), and wait_for_answer().

◆ ast_channel_yank()

struct ast_channel * ast_channel_yank ( struct ast_channel yankee)

Gain control of a channel in the system.

Since
12

The intention of this function is to take a channel that currently is running in one thread and gain control of it in the current thread. This can be used to redirect a channel to a different place in the dialplan, for instance.

Note
This function is NOT intended to be used on bridged channels. If you need to control a bridged channel, you can set a callback to be called once the channel exits the bridge, and run your controlling logic in that callback

XXX Put name of callback-setting function in above paragraph once it is written

Note
When this function returns successfully, the yankee channel is in a state where it cannot be used any further. Always use the returned channel instead.
absolutely NO channel locks should be held before calling this function.
The dialplan location on the returned channel is where the channel should be started in the dialplan if it is returned to it.
Parameters
yankeeThe channel to gain control of
Return values
NULLCould not gain control of the channel
non-NULLThe channel

Definition at line 10703 of file channel.c.

10704{
10705 struct ast_channel *yanked_chan;
10706 struct {
10707 char *accountcode;
10708 char *exten;
10709 char *context;
10710 char *name;
10711 int amaflags;
10712 int priority;
10713 struct ast_format *readformat;
10714 struct ast_format *writeformat;
10715 } my_vars = { 0, };
10716
10717 ast_channel_lock(yankee);
10718 my_vars.accountcode = ast_strdupa(ast_channel_accountcode(yankee));
10719 my_vars.exten = ast_strdupa(ast_channel_exten(yankee));
10720 my_vars.context = ast_strdupa(ast_channel_context(yankee));
10721 my_vars.name = ast_strdupa(ast_channel_name(yankee));
10722 my_vars.amaflags = ast_channel_amaflags(yankee);
10723 my_vars.priority = ast_channel_priority(yankee);
10724 /* The priority as returned by ast_channel_yank is where the channel
10725 * should go if the dialplan is executed on it. If the channel is
10726 * already executing dialplan then the priority currently set is
10727 * where it is currently. We increment it so it becomes where it should
10728 * execute.
10729 */
10731 my_vars.priority++;
10732 }
10733 my_vars.writeformat = ao2_bump(ast_channel_writeformat(yankee));
10734 my_vars.readformat = ao2_bump(ast_channel_readformat(yankee));
10735 ast_channel_unlock(yankee);
10736
10737 /* Do not hold any channel locks while calling channel_alloc() since the function
10738 * locks the channel container when linking the new channel in. */
10739 if (!(yanked_chan = ast_channel_alloc(0, AST_STATE_DOWN, 0, 0, my_vars.accountcode,
10740 my_vars.exten, my_vars.context, NULL, yankee, my_vars.amaflags,
10741 "Surrogate/%s", my_vars.name))) {
10742 ao2_cleanup(my_vars.writeformat);
10743 ao2_cleanup(my_vars.readformat);
10744 return NULL;
10745 }
10746
10747 /* Make formats okay */
10748 ast_channel_set_readformat(yanked_chan, my_vars.readformat);
10749 ast_channel_set_writeformat(yanked_chan, my_vars.writeformat);
10750 ao2_cleanup(my_vars.readformat);
10751 ao2_cleanup(my_vars.writeformat);
10752 ast_channel_priority_set(yanked_chan, my_vars.priority);
10753
10754 ast_channel_unlock(yanked_chan);
10755
10756 if (ast_channel_move(yanked_chan, yankee)) {
10757 ast_hangup(yanked_chan);
10758 return NULL;
10759 }
10760
10761 return yanked_chan;
10762}
static char accountcode[AST_MAX_ACCOUNT_CODE]
Definition chan_iax2.c:510
int ast_channel_move(struct ast_channel *dest, struct ast_channel *source)
Move a channel from its current location to a new location.
Definition channel.c:10776
#define ast_channel_alloc(needqueue, state, cid_num, cid_name, acctcode, exten, context, assignedids, requestor, amaflag,...)
Create a channel structure.
Definition channel.h:1299
int ast_channel_priority(const struct ast_channel *chan)
const char * ast_channel_accountcode(const struct ast_channel *chan)
enum ama_flags ast_channel_amaflags(const struct ast_channel *chan)
@ AST_FLAG_IN_AUTOLOOP
Definition channel.h:1017
const char * ast_channel_exten(const struct ast_channel *chan)
@ AST_STATE_DOWN
struct ast_format * writeformat
struct ast_format * readformat

References accountcode, ast_channel::amaflags, ao2_bump, ao2_cleanup, ast_channel_accountcode(), ast_channel_alloc, ast_channel_amaflags(), ast_channel_context(), ast_channel_exten(), ast_channel_flags(), ast_channel_lock, ast_channel_move(), ast_channel_name(), ast_channel_priority(), ast_channel_priority_set(), ast_channel_readformat(), ast_channel_set_readformat(), ast_channel_set_writeformat(), ast_channel_unlock, ast_channel_writeformat(), AST_FLAG_IN_AUTOLOOP, ast_hangup(), AST_STATE_DOWN, ast_strdupa, ast_test_flag, ast_channel::context, ast_channel::exten, name, NULL, ast_channel::priority, ast_channel::readformat, and ast_channel::writeformat.

Referenced by ast_async_goto(), and ast_bridge_add_channel().

◆ ast_channels_init()

int ast_channels_init ( void  )

Provided by channel.c

Definition at line 8107 of file channel.c.

8108{
8109
8110 if (ast_channelstorage_init() != 0) {
8111 return -1;
8112 }
8113
8114 /*
8115 * channel_storage_type is a global variable set by options.c
8116 * from the "channel_storage_backend" option in asterisk.conf.
8117 */
8118 if (ast_channel_open_storage() != 0) {
8119 return -1;
8120 }
8121
8123
8125
8127
8129
8132
8133 return 0;
8134}
int ast_register_cleanup(void(*func)(void))
Register a function to be executed before Asterisk gracefully exits.
Definition clicompat.c:19
static void channels_shutdown(void)
Definition channel.c:8045
int ast_channel_open_storage()
Definition channel.c:8058
int ast_channel_register(const struct ast_channel_tech *tech)
Register a new telephony channel in Asterisk.
Definition channel.c:540
static const struct ast_channel_tech surrogate_tech
Channel technology used to extract a channel from a running application. The channel created with thi...
Definition channel.c:697
static struct ast_cli_entry cli_channel[]
Definition channel.c:391
int ast_channelstorage_init(void)
#define ast_cli_register_multiple(e, len)
Register multiple commands.
Definition cli.h:265
#define AST_RWLIST_HEAD_INIT(head)
Initializes an rwlist head structure.
int ast_stasis_channels_init(void)
Initialize the stasis channel topic and message types.

References ami_vars, ari_vars, ARRAY_LEN, ast_channel_open_storage(), ast_channel_register(), ast_channelstorage_init(), ast_cli_register_multiple, ast_register_cleanup(), AST_RWLIST_HEAD_INIT, ast_stasis_channels_init(), channels_shutdown(), cli_channel, and surrogate_tech.

Referenced by asterisk_daemon().

◆ ast_channeltype_list()

struct ast_variable * ast_channeltype_list ( void  )

return an ast_variable list of channeltypes

Definition at line 189 of file channel.c.

190{
191 struct chanlist *cl;
192 struct ast_variable *var = NULL, *prev = NULL;
193
195 AST_RWLIST_TRAVERSE(&backends, cl, list) {
196 if (prev) {
197 if ((prev->next = ast_variable_new(cl->tech->type, cl->tech->description, "")))
198 prev = prev->next;
199 } else {
200 var = ast_variable_new(cl->tech->type, cl->tech->description, "");
201 prev = var;
202 }
203 }
205
206 return var;
207}
#define ast_variable_new(name, value, filename)
#define AST_RWLIST_RDLOCK(head)
Read locks a list.
Definition linkedlists.h:78
Structure for variables, used for configurations and for channel variables.

References AST_RWLIST_RDLOCK, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, ast_variable_new, NULL, chanlist::tech, and var.

Referenced by ast_var_channel_types(), and ast_var_channel_types_table().

◆ ast_check_hangup()

int ast_check_hangup ( struct ast_channel chan)

Checks to see if a channel is needing hang up.

Check to see if a channel is needing hang up.

Definition at line 446 of file channel.c.

447{
448 if (ast_channel_softhangup_internal_flag(chan)) /* yes if soft hangup flag set */
449 return 1;
450 if (ast_tvzero(*ast_channel_whentohangup(chan))) /* no if no hangup scheduled */
451 return 0;
452 if (ast_tvdiff_ms(*ast_channel_whentohangup(chan), ast_tvnow()) > 0) /* no if hangup time has not come yet. */
453 return 0;
454 ast_debug(4, "Hangup time has come: %" PRIi64 "\n", ast_tvdiff_ms(*ast_channel_whentohangup(chan), ast_tvnow()));
455 ast_test_suite_event_notify("HANGUP_TIME", "Channel: %s", ast_channel_name(chan));
457 return 1;
458}
@ AST_SOFTHANGUP_TIMEOUT
Definition channel.h:1158
#define ast_test_suite_event_notify(s, f,...)
Definition test.h:189

References ast_channel_name(), ast_channel_softhangup_internal_flag(), ast_channel_softhangup_internal_flag_add(), ast_channel_whentohangup(), ast_debug, AST_SOFTHANGUP_TIMEOUT, ast_test_suite_event_notify, ast_tvdiff_ms(), ast_tvnow(), and ast_tvzero().

Referenced by __ast_pbx_run(), __ast_read(), agent_request_exec(), agi_exec(), announce_thread(), app_exec(), ast_bridge_setup_after_goto(), ast_call(), ast_check_hangup_locked(), ast_indicate_data(), ast_raw_answer_with_stream_topology(), ast_readstring_full(), ast_recvtext(), ast_sendtext_data(), ast_transfer_protocol(), ast_unreal_fixup(), ast_waitfordigit_full(), ast_write_stream(), autoservice_run(), call_forward_inherit(), channel_spy(), common_exec(), conf_play(), conf_run(), confbridge_exec(), dahdi_sendtext(), dahdi_setoption(), depart_channel(), dial_exec_full(), directory_exec(), dundi_lookup_internal(), eagi_exec(), eivr_comm(), fax_gateway_framehook(), find_cache(), findmeexec(), func_channel_read(), gosub_run(), handle_sendimage(), join_conference_bridge(), launch_asyncagi(), lua_check_hangup(), pbx_builtin_incomplete(), pbx_builtin_waitexten(), play_on_channel(), playback_exec(), read_exec(), readexten_exec(), run_agi(), stasis_app_broadcast_wait(), stasis_app_exec(), stasis_broadcast_exec(), transfer_target_framehook_cb(), try_calling(), vm_authenticate(), and wait_for_answer().

◆ ast_check_hangup_locked()

int ast_check_hangup_locked ( struct ast_channel chan)

◆ ast_connected_line_build_data()

int ast_connected_line_build_data ( unsigned char *  data,
size_t  datalen,
const struct ast_party_connected_line connected,
const struct ast_set_party_connected_line update 
)

Build the connected line information data frame.

Since
1.8
Parameters
dataBuffer to fill with the frame data
datalenSize of the buffer to fill
connectedConnected line information
updateWhat connected line information to build. NULL if all.
Return values
-1if error
Amountof data buffer used

Definition at line 8803 of file channel.c.

8804{
8805 int32_t value;
8806 size_t pos = 0;
8807 int res;
8808
8809 static const struct ast_party_id_ies ies = {
8811 .name.char_set = AST_CONNECTED_LINE_NAME_CHAR_SET,
8812 .name.presentation = AST_CONNECTED_LINE_NAME_PRESENTATION,
8813 .name.valid = AST_CONNECTED_LINE_NAME_VALID,
8814
8815 .number.str = AST_CONNECTED_LINE_NUMBER,
8816 .number.plan = AST_CONNECTED_LINE_NUMBER_PLAN,
8817 .number.presentation = AST_CONNECTED_LINE_NUMBER_PRESENTATION,
8818 .number.valid = AST_CONNECTED_LINE_NUMBER_VALID,
8819
8820 .subaddress.str = AST_CONNECTED_LINE_SUBADDRESS,
8821 .subaddress.type = AST_CONNECTED_LINE_SUBADDRESS_TYPE,
8822 .subaddress.odd_even_indicator = AST_CONNECTED_LINE_SUBADDRESS_ODD_EVEN,
8823 .subaddress.valid = AST_CONNECTED_LINE_SUBADDRESS_VALID,
8824
8826 .combined_presentation = AST_CONNECTED_LINE_ID_PRESENTATION,
8827 };
8828
8829 static const struct ast_party_id_ies priv_ies = {
8832 .name.presentation = AST_CONNECTED_LINE_PRIV_NAME_PRESENTATION,
8834
8835 .number.str = AST_CONNECTED_LINE_PRIV_NUMBER,
8837 .number.presentation = AST_CONNECTED_LINE_PRIV_NUMBER_PRESENTATION,
8839
8840 .subaddress.str = AST_CONNECTED_LINE_PRIV_SUBADDRESS,
8841 .subaddress.type = AST_CONNECTED_LINE_PRIV_SUBADDRESS_TYPE,
8842 .subaddress.odd_even_indicator = AST_CONNECTED_LINE_PRIV_SUBADDRESS_ODD_EVEN,
8843 .subaddress.valid = AST_CONNECTED_LINE_PRIV_SUBADDRESS_VALID,
8844
8846 .combined_presentation = 0,/* Not sent. */
8847 };
8848
8849 /*
8850 * The size of integer values must be fixed in case the frame is
8851 * shipped to another machine.
8852 */
8853
8854 /* Connected line frame version */
8855 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
8856 ast_log(LOG_WARNING, "No space left for connected line frame version\n");
8857 return -1;
8858 }
8859 data[pos++] = AST_CONNECTED_LINE_VERSION;
8860 data[pos++] = 1;
8861 data[pos++] = 2;/* Version 1 did not have a version ie */
8862
8863 res = party_id_build_data(data + pos, datalen - pos, &connected->id,
8864 "connected line", &ies, update ? &update->id : NULL);
8865 if (res < 0) {
8866 return -1;
8867 }
8868 pos += res;
8869
8870 res = party_id_build_data(data + pos, datalen - pos, &connected->priv,
8871 "connected line priv", &priv_ies, update ? &update->priv : NULL);
8872 if (res < 0) {
8873 return -1;
8874 }
8875 pos += res;
8876
8877 /* Connected line source */
8878 if (datalen < pos + (sizeof(data[0]) * 2) + sizeof(value)) {
8879 ast_log(LOG_WARNING, "No space left for connected line source\n");
8880 return -1;
8881 }
8882 data[pos++] = AST_CONNECTED_LINE_SOURCE;
8883 data[pos++] = sizeof(value);
8884 value = htonl(connected->source);
8885 memcpy(data + pos, &value, sizeof(value));
8886 pos += sizeof(value);
8887
8888 return pos;
8889}
static int party_id_build_data(unsigned char *data, size_t datalen, const struct ast_party_id *id, const char *label, const struct ast_party_id_ies *ies, const struct ast_set_party_id *update)
Definition channel.c:8683
struct ast_party_name_ies name
Subscriber name ies.
Definition channel.c:8654
int str
Subscriber name ie.
Definition channel.c:8431
int value
Definition syslog.c:37

References AST_CONNECTED_LINE_ID_PRESENTATION, AST_CONNECTED_LINE_NAME, AST_CONNECTED_LINE_NAME_CHAR_SET, AST_CONNECTED_LINE_NAME_PRESENTATION, AST_CONNECTED_LINE_NAME_VALID, AST_CONNECTED_LINE_NUMBER, AST_CONNECTED_LINE_NUMBER_PLAN, AST_CONNECTED_LINE_NUMBER_PRESENTATION, AST_CONNECTED_LINE_NUMBER_VALID, AST_CONNECTED_LINE_PRIV_NAME, AST_CONNECTED_LINE_PRIV_NAME_CHAR_SET, AST_CONNECTED_LINE_PRIV_NAME_PRESENTATION, AST_CONNECTED_LINE_PRIV_NAME_VALID, AST_CONNECTED_LINE_PRIV_NUMBER, AST_CONNECTED_LINE_PRIV_NUMBER_PLAN, AST_CONNECTED_LINE_PRIV_NUMBER_PRESENTATION, AST_CONNECTED_LINE_PRIV_NUMBER_VALID, AST_CONNECTED_LINE_PRIV_SUBADDRESS, AST_CONNECTED_LINE_PRIV_SUBADDRESS_ODD_EVEN, AST_CONNECTED_LINE_PRIV_SUBADDRESS_TYPE, AST_CONNECTED_LINE_PRIV_SUBADDRESS_VALID, AST_CONNECTED_LINE_PRIV_TAG, AST_CONNECTED_LINE_SOURCE, AST_CONNECTED_LINE_SUBADDRESS, AST_CONNECTED_LINE_SUBADDRESS_ODD_EVEN, AST_CONNECTED_LINE_SUBADDRESS_TYPE, AST_CONNECTED_LINE_SUBADDRESS_VALID, AST_CONNECTED_LINE_TAG, AST_CONNECTED_LINE_VERSION, ast_log, connected, LOG_WARNING, ast_party_id_ies::name, NULL, party_id_build_data(), ast_party_name_ies::str, update(), and value.

Referenced by after_bridge_move_channel(), ast_channel_queue_connected_line_update(), ast_channel_update_connected_line(), bridge_reconfigured_connected_line_update(), indicate_connected_line(), send_colp_to_agent(), and unreal_colp_redirect_indicate().

◆ ast_connected_line_copy_from_caller()

void ast_connected_line_copy_from_caller ( struct ast_party_connected_line dest,
const struct ast_party_caller src 
)

Copy the caller information to the connected line information.

Since
1.8
Parameters
destDestination connected line information
srcSource caller information
Note
Assumes locks are already acquired

Definition at line 8399 of file channel.c.

8400{
8401 ast_party_id_copy(&dest->id, &src->id);
8402 ast_party_id_copy(&dest->ani, &src->ani);
8403 dest->ani2 = src->ani2;
8404}
void ast_party_id_copy(struct ast_party_id *dest, const struct ast_party_id *src)
Copy the source party id information to the destination party id.
Definition channel.c:1752
int ani2
Automatic Number Identification 2 (Info Digits)
Definition channel.h:435
struct ast_party_id ani
Automatic Number Identification (ANI)
Definition channel.h:429
struct ast_party_id id
Connected party ID.
Definition channel.h:460
int ani2
Automatic Number Identification 2 (Info Digits)
Definition channel.h:477
struct ast_party_id ani
Automatic Number Identification (ANI)
Definition channel.h:467

References ast_party_caller::ani, ast_party_connected_line::ani, ast_party_caller::ani2, ast_party_connected_line::ani2, ast_party_id_copy(), ast_party_caller::id, and ast_party_connected_line::id.

Referenced by after_bridge_move_channel(), agent_request_exec(), app_exec(), ast_ari_channels_dial(), ast_do_pickup(), ast_unreal_call_setup(), begin_dial_prerun(), bridge_reconfigured_connected_line_update(), copy_caller_data(), dial_exec_full(), do_forward(), findmeexec(), park_local_transfer(), ring_entry(), update_connected_line_from_peer(), update_connected_line_from_peer(), and wait_for_answer().

◆ ast_connected_line_copy_to_caller()

void ast_connected_line_copy_to_caller ( struct ast_party_caller dest,
const struct ast_party_connected_line src 
)

Copy the connected line information to the caller information.

Since
1.8
Parameters
destDestination caller information
srcSource connected line information
Note
Assumes locks are already acquired

Definition at line 8406 of file channel.c.

8407{
8408 ast_party_id_copy(&dest->id, &src->id);
8409 ast_party_id_copy(&dest->ani, &src->ani);
8410
8411 dest->ani2 = src->ani2;
8412}

References ast_party_caller::ani, ast_party_connected_line::ani, ast_party_caller::ani2, ast_party_connected_line::ani2, ast_party_id_copy(), ast_party_caller::id, and ast_party_connected_line::id.

Referenced by ast_unreal_call_setup(), and unreal_colp_redirect_indicate().

◆ ast_connected_line_parse_data()

int ast_connected_line_parse_data ( const unsigned char *  data,
size_t  datalen,
struct ast_party_connected_line connected 
)

Parse connected line indication frame data.

Since
1.8
Parameters
dataBuffer with the frame data to parse
datalenSize of the buffer
connectedExtracted connected line information
Return values
0on success.
-1on error.
Note
The filled in connected line structure needs to be initialized by ast_party_connected_line_set_init() before calling. If defaults are not required use ast_party_connected_line_init().
The filled in connected line structure needs to be destroyed by ast_party_connected_line_free() when it is no longer needed.

Definition at line 8891 of file channel.c.

8892{
8893 size_t pos;
8894 unsigned char ie_len;
8895 unsigned char ie_id;
8896 int32_t value;
8897 int frame_version = 1;
8898 int combined_presentation = 0;
8899 int got_combined_presentation = 0;/* TRUE if got a combined name and number presentation value. */
8900
8901 for (pos = 0; pos < datalen; pos += ie_len) {
8902 if (datalen < pos + sizeof(ie_id) + sizeof(ie_len)) {
8903 ast_log(LOG_WARNING, "Invalid connected line update\n");
8904 return -1;
8905 }
8906 ie_id = data[pos++];
8907 ie_len = data[pos++];
8908 if (datalen < pos + ie_len) {
8909 ast_log(LOG_WARNING, "Invalid connected line update\n");
8910 return -1;
8911 }
8912
8913 switch (ie_id) {
8914/* Connected line party frame version */
8916 if (ie_len != 1) {
8917 ast_log(LOG_WARNING, "Invalid connected line frame version (%u)\n",
8918 (unsigned) ie_len);
8919 break;
8920 }
8921 frame_version = data[pos];
8922 break;
8923/* Connected line party id name */
8925 ast_free(connected->id.name.str);
8926 connected->id.name.str = ast_malloc(ie_len + 1);
8927 if (connected->id.name.str) {
8928 memcpy(connected->id.name.str, data + pos, ie_len);
8929 connected->id.name.str[ie_len] = 0;
8930 }
8931 break;
8933 if (ie_len != 1) {
8934 ast_log(LOG_WARNING, "Invalid connected line name char set (%u)\n",
8935 (unsigned) ie_len);
8936 break;
8937 }
8938 connected->id.name.char_set = data[pos];
8939 break;
8941 if (ie_len != 1) {
8942 ast_log(LOG_WARNING, "Invalid connected line name presentation (%u)\n",
8943 (unsigned) ie_len);
8944 break;
8945 }
8946 connected->id.name.presentation = data[pos];
8947 break;
8949 if (ie_len != 1) {
8950 ast_log(LOG_WARNING, "Invalid connected line name valid (%u)\n",
8951 (unsigned) ie_len);
8952 break;
8953 }
8954 connected->id.name.valid = data[pos];
8955 break;
8956/* Connected line party id number */
8958 ast_free(connected->id.number.str);
8959 connected->id.number.str = ast_malloc(ie_len + 1);
8960 if (connected->id.number.str) {
8961 memcpy(connected->id.number.str, data + pos, ie_len);
8962 connected->id.number.str[ie_len] = 0;
8963 }
8964 break;
8966 if (ie_len != 1) {
8967 ast_log(LOG_WARNING, "Invalid connected line numbering plan (%u)\n",
8968 (unsigned) ie_len);
8969 break;
8970 }
8971 connected->id.number.plan = data[pos];
8972 break;
8974 if (ie_len != 1) {
8975 ast_log(LOG_WARNING, "Invalid connected line number presentation (%u)\n",
8976 (unsigned) ie_len);
8977 break;
8978 }
8979 connected->id.number.presentation = data[pos];
8980 break;
8982 if (ie_len != 1) {
8983 ast_log(LOG_WARNING, "Invalid connected line number valid (%u)\n",
8984 (unsigned) ie_len);
8985 break;
8986 }
8987 connected->id.number.valid = data[pos];
8988 break;
8989/* Connected line party id subaddress */
8991 ast_free(connected->id.subaddress.str);
8992 connected->id.subaddress.str = ast_malloc(ie_len + 1);
8993 if (connected->id.subaddress.str) {
8994 memcpy(connected->id.subaddress.str, data + pos, ie_len);
8995 connected->id.subaddress.str[ie_len] = 0;
8996 }
8997 break;
8999 if (ie_len != 1) {
9000 ast_log(LOG_WARNING, "Invalid connected line type of subaddress (%u)\n",
9001 (unsigned) ie_len);
9002 break;
9003 }
9004 connected->id.subaddress.type = data[pos];
9005 break;
9007 if (ie_len != 1) {
9009 "Invalid connected line subaddress odd-even indicator (%u)\n",
9010 (unsigned) ie_len);
9011 break;
9012 }
9013 connected->id.subaddress.odd_even_indicator = data[pos];
9014 break;
9016 if (ie_len != 1) {
9017 ast_log(LOG_WARNING, "Invalid connected line subaddress valid (%u)\n",
9018 (unsigned) ie_len);
9019 break;
9020 }
9021 connected->id.subaddress.valid = data[pos];
9022 break;
9023/* Connected line party tag */
9025 ast_free(connected->id.tag);
9026 connected->id.tag = ast_malloc(ie_len + 1);
9027 if (connected->id.tag) {
9028 memcpy(connected->id.tag, data + pos, ie_len);
9029 connected->id.tag[ie_len] = 0;
9030 }
9031 break;
9032/* Connected line party id combined presentation */
9034 if (ie_len != 1) {
9035 ast_log(LOG_WARNING, "Invalid connected line combined presentation (%u)\n",
9036 (unsigned) ie_len);
9037 break;
9038 }
9039 combined_presentation = data[pos];
9040 got_combined_presentation = 1;
9041 break;
9042/* Private connected line party id name */
9044 ast_free(connected->priv.name.str);
9045 connected->priv.name.str = ast_malloc(ie_len + 1);
9046 if (connected->priv.name.str) {
9047 memcpy(connected->priv.name.str, data + pos, ie_len);
9048 connected->priv.name.str[ie_len] = 0;
9049 }
9050 break;
9052 if (ie_len != 1) {
9053 ast_log(LOG_WARNING, "Invalid connected line private name char set (%u)\n",
9054 (unsigned) ie_len);
9055 break;
9056 }
9057 connected->priv.name.char_set = data[pos];
9058 break;
9060 if (ie_len != 1) {
9061 ast_log(LOG_WARNING, "Invalid connected line private name presentation (%u)\n",
9062 (unsigned) ie_len);
9063 break;
9064 }
9065 connected->priv.name.presentation = data[pos];
9066 break;
9068 if (ie_len != 1) {
9069 ast_log(LOG_WARNING, "Invalid connected line private name valid (%u)\n",
9070 (unsigned) ie_len);
9071 break;
9072 }
9073 connected->priv.name.valid = data[pos];
9074 break;
9075/* Private connected line party id number */
9077 ast_free(connected->priv.number.str);
9078 connected->priv.number.str = ast_malloc(ie_len + 1);
9079 if (connected->priv.number.str) {
9080 memcpy(connected->priv.number.str, data + pos, ie_len);
9081 connected->priv.number.str[ie_len] = 0;
9082 }
9083 break;
9085 if (ie_len != 1) {
9086 ast_log(LOG_WARNING, "Invalid connected line private numbering plan (%u)\n",
9087 (unsigned) ie_len);
9088 break;
9089 }
9090 connected->priv.number.plan = data[pos];
9091 break;
9093 if (ie_len != 1) {
9094 ast_log(LOG_WARNING, "Invalid connected line private number presentation (%u)\n",
9095 (unsigned) ie_len);
9096 break;
9097 }
9098 connected->priv.number.presentation = data[pos];
9099 break;
9101 if (ie_len != 1) {
9102 ast_log(LOG_WARNING, "Invalid connected line private number valid (%u)\n",
9103 (unsigned) ie_len);
9104 break;
9105 }
9106 connected->priv.number.valid = data[pos];
9107 break;
9108/* Private connected line party id subaddress */
9110 ast_free(connected->priv.subaddress.str);
9111 connected->priv.subaddress.str = ast_malloc(ie_len + 1);
9112 if (connected->priv.subaddress.str) {
9113 memcpy(connected->priv.subaddress.str, data + pos, ie_len);
9114 connected->priv.subaddress.str[ie_len] = 0;
9115 }
9116 break;
9118 if (ie_len != 1) {
9119 ast_log(LOG_WARNING, "Invalid connected line private type of subaddress (%u)\n",
9120 (unsigned) ie_len);
9121 break;
9122 }
9123 connected->priv.subaddress.type = data[pos];
9124 break;
9126 if (ie_len != 1) {
9128 "Invalid connected line private subaddress odd-even indicator (%u)\n",
9129 (unsigned) ie_len);
9130 break;
9131 }
9132 connected->priv.subaddress.odd_even_indicator = data[pos];
9133 break;
9135 if (ie_len != 1) {
9136 ast_log(LOG_WARNING, "Invalid connected line private subaddress valid (%u)\n",
9137 (unsigned) ie_len);
9138 break;
9139 }
9140 connected->priv.subaddress.valid = data[pos];
9141 break;
9142/* Private connected line party tag */
9144 ast_free(connected->priv.tag);
9145 connected->priv.tag = ast_malloc(ie_len + 1);
9146 if (connected->priv.tag) {
9147 memcpy(connected->priv.tag, data + pos, ie_len);
9148 connected->priv.tag[ie_len] = 0;
9149 }
9150 break;
9151/* Connected line party source */
9153 if (ie_len != sizeof(value)) {
9154 ast_log(LOG_WARNING, "Invalid connected line source (%u)\n",
9155 (unsigned) ie_len);
9156 break;
9157 }
9158 memcpy(&value, data + pos, sizeof(value));
9159 connected->source = ntohl(value);
9160 break;
9161/* Connected line party unknown element */
9162 default:
9163 ast_debug(1, "Unknown connected line element: %u (%u)\n",
9164 (unsigned) ie_id, (unsigned) ie_len);
9165 break;
9166 }
9167 }
9168
9169 switch (frame_version) {
9170 case 1:
9171 /*
9172 * The other end is an earlier version that we need to adjust
9173 * for compatibility.
9174 */
9175 connected->id.name.valid = 1;
9176 connected->id.name.char_set = AST_PARTY_CHAR_SET_ISO8859_1;
9177 connected->id.number.valid = 1;
9178 if (got_combined_presentation) {
9179 connected->id.name.presentation = combined_presentation;
9180 connected->id.number.presentation = combined_presentation;
9181 }
9182 break;
9183 case 2:
9184 /* The other end is at the same level as we are. */
9185 break;
9186 default:
9187 /*
9188 * The other end is newer than we are.
9189 * We need to assume that they are compatible with us.
9190 */
9191 ast_debug(1, "Connected line frame has newer version: %u\n",
9192 (unsigned) frame_version);
9193 break;
9194 }
9195
9196 return 0;
9197}
#define ast_malloc(len)
A wrapper for malloc()
Definition astmm.h:191
@ AST_PARTY_CHAR_SET_ISO8859_1
Definition channel.h:246

References AST_CONNECTED_LINE_ID_PRESENTATION, AST_CONNECTED_LINE_NAME, AST_CONNECTED_LINE_NAME_CHAR_SET, AST_CONNECTED_LINE_NAME_PRESENTATION, AST_CONNECTED_LINE_NAME_VALID, AST_CONNECTED_LINE_NUMBER, AST_CONNECTED_LINE_NUMBER_PLAN, AST_CONNECTED_LINE_NUMBER_PRESENTATION, AST_CONNECTED_LINE_NUMBER_VALID, AST_CONNECTED_LINE_PRIV_NAME, AST_CONNECTED_LINE_PRIV_NAME_CHAR_SET, AST_CONNECTED_LINE_PRIV_NAME_PRESENTATION, AST_CONNECTED_LINE_PRIV_NAME_VALID, AST_CONNECTED_LINE_PRIV_NUMBER, AST_CONNECTED_LINE_PRIV_NUMBER_PLAN, AST_CONNECTED_LINE_PRIV_NUMBER_PRESENTATION, AST_CONNECTED_LINE_PRIV_NUMBER_VALID, AST_CONNECTED_LINE_PRIV_SUBADDRESS, AST_CONNECTED_LINE_PRIV_SUBADDRESS_ODD_EVEN, AST_CONNECTED_LINE_PRIV_SUBADDRESS_TYPE, AST_CONNECTED_LINE_PRIV_SUBADDRESS_VALID, AST_CONNECTED_LINE_PRIV_TAG, AST_CONNECTED_LINE_SOURCE, AST_CONNECTED_LINE_SUBADDRESS, AST_CONNECTED_LINE_SUBADDRESS_ODD_EVEN, AST_CONNECTED_LINE_SUBADDRESS_TYPE, AST_CONNECTED_LINE_SUBADDRESS_VALID, AST_CONNECTED_LINE_TAG, AST_CONNECTED_LINE_VERSION, ast_debug, ast_free, ast_log, ast_malloc, AST_PARTY_CHAR_SET_ISO8859_1, ast_party_id_ies::combined_presentation, connected, LOG_WARNING, and value.

Referenced by __ast_read(), ast_channel_connected_line_sub(), indicate_connected_line(), socket_process_helper(), wait_for_answer(), wait_for_answer(), and wait_for_winner().

◆ ast_deactivate_generator()

void ast_deactivate_generator ( struct ast_channel chan)

Deactivate an active generator

Definition at line 2926 of file channel.c.

2927{
2928 ast_channel_lock(chan);
2931 /* if in the middle of dtmf emulation keep 50 tick per sec timer on rolling */
2932 struct ast_timer *timer = ast_channel_timer(chan);
2933 if (timer) {
2935 } else {
2936 ast_log(LOG_WARNING, "No timing module loaded, DTMF length may be inaccurate\n");
2937 }
2938 }
2939 ast_channel_unlock(chan);
2940}
static void deactivate_generator_nolock(struct ast_channel *chan)
Definition channel.c:2911

References ast_channel_lock, ast_channel_timer(), ast_channel_unlock, ast_log, ast_timer_set_rate(), deactivate_generator_nolock(), LOG_WARNING, should_trigger_dtmf_emulating(), and timer.

Referenced by __ast_read(), app_exec(), app_exec(), ast_playtones_stop(), ast_read_generator_actions(), ast_tonepair_stop(), ast_write_stream(), channel_spy(), dial_exec_full(), do_broadcast(), generator_force(), local_ast_moh_stop(), old_milliwatt_exec(), openstream_internal(), and wait_for_answer().

◆ ast_dummy_channel_destructor()

static void ast_dummy_channel_destructor ( void *  obj)
static

Free a dummy channel structure.

Definition at line 2324 of file channel.c.

2325{
2326 struct ast_channel *chan = obj;
2327 struct ast_datastore *datastore;
2328 struct ast_var_t *vardata;
2329 struct varshead *headp;
2330
2332
2333 /* Get rid of each of the data stores on the channel */
2334 while ((datastore = AST_LIST_REMOVE_HEAD(ast_channel_datastores(chan), entry))) {
2335 /* Free the data store */
2336 ast_datastore_free(datastore);
2337 }
2338
2344
2345 /* loop over the variables list, freeing all data and deleting list items */
2346 /* no need to lock the list, as the channel is already locked */
2347 headp = ast_channel_varshead(chan);
2348 while ((vardata = AST_LIST_REMOVE_HEAD(headp, entries)))
2349 ast_var_delete(vardata);
2350
2351 if (ast_channel_cdr(chan)) {
2354 }
2355
2357}

References ast_cdr_free(), ast_channel_caller(), ast_channel_cdr(), ast_channel_cdr_set(), ast_channel_connected(), ast_channel_connected_indicated(), ast_channel_datastores(), ast_channel_dialed(), ast_channel_internal_cleanup(), ast_channel_redirecting(), ast_channel_varshead(), ast_datastore_free(), AST_LIST_REMOVE_HEAD, ast_party_caller_free(), ast_party_connected_line_free(), ast_party_dialed_free(), ast_party_redirecting_free(), ast_pbx_hangup_handler_destroy(), ast_var_delete(), and NULL.

Referenced by __ast_dummy_channel_alloc().

◆ ast_get_channel_tech()

const struct ast_channel_tech * ast_get_channel_tech ( const char *  name)

Get handle to channel driver based on name.

Get a channel technology structure by name.

Definition at line 593 of file channel.c.

594{
595 struct chanlist *chanls;
596 const struct ast_channel_tech *ret = NULL;
597
599
600 AST_RWLIST_TRAVERSE(&backends, chanls, list) {
601 if (!strcasecmp(name, chanls->tech->type)) {
602 ret = chanls->tech;
603 break;
604 }
605 }
606
608
609 return ret;
610}

References AST_RWLIST_RDLOCK, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, name, NULL, and chanlist::tech.

Referenced by __ast_channel_alloc_ap(), _ast_device_state(), ast_cc_callback(), ast_presence_state_helper(), and ast_var_channel_types_table().

◆ ast_get_group()

ast_group_t ast_get_group ( const char *  s)

Definition at line 7692 of file channel.c.

7693{
7694 char *piece;
7695 char *c;
7696 int start=0, finish=0, x;
7697 ast_group_t group = 0;
7698
7699 if (ast_strlen_zero(s))
7700 return 0;
7701
7702 c = ast_strdupa(s);
7703
7704 while ((piece = strsep(&c, ","))) {
7705 if (sscanf(piece, "%30d-%30d", &start, &finish) == 2) {
7706 /* Range */
7707 } else if (sscanf(piece, "%30d", &start)) {
7708 /* Just one */
7709 finish = start;
7710 } else {
7711 ast_log(LOG_ERROR, "Syntax error parsing group configuration '%s' at '%s'. Ignoring.\n", s, piece);
7712 continue;
7713 }
7714 for (x = start; x <= finish; x++) {
7715 if ((x > 63) || (x < 0)) {
7716 ast_log(LOG_WARNING, "Ignoring invalid group %d (maximum group is 63)\n", x);
7717 } else
7718 group |= ((ast_group_t) 1 << x);
7719 }
7720 }
7721 return group;
7722}
char * strsep(char **str, const char *delims)
unsigned long long ast_group_t
Definition channel.h:215
static struct test_val c

References ast_log, ast_strdupa, ast_strlen_zero(), c, LOG_ERROR, LOG_WARNING, and strsep().

Referenced by build_device(), custom_group_handler(), func_channel_write_real(), group_handler(), and process_dahdi().

◆ ast_get_namedgroups()

struct ast_namedgroups * ast_get_namedgroups ( const char *  s)

Create an ast_namedgroups set with group names from comma separated string.

Remove leading and trailing whitespace

Definition at line 7749 of file channel.c.

7750{
7751 struct ao2_container *namedgroups;
7752 char *piece;
7753 char *c;
7754
7755 if (!s) {
7756 return NULL;
7757 }
7758
7759 /*! \brief Remove leading and trailing whitespace */
7761 if (ast_strlen_zero(c)) {
7762 return NULL;
7763 }
7764
7767 if (!namedgroups) {
7768 return NULL;
7769 }
7770
7771 while ((piece = strsep(&c, ","))) {
7772 struct namedgroup_member *member;
7773 size_t len;
7774
7775 /* remove leading/trailing whitespace */
7776 piece = ast_strip(piece);
7777
7778 len = strlen(piece);
7779 if (!len) {
7780 continue;
7781 }
7782
7784 if (!member) {
7785 ao2_ref(namedgroups, -1);
7786 return NULL;
7787 }
7788 strcpy(member->name, piece);/* Safe */
7789 member->hash = ast_str_hash(member->name);
7790
7791 /* every group name may exist only once, delete duplicates */
7792 ao2_find(namedgroups, member, OBJ_POINTER | OBJ_UNLINK | OBJ_NODATA);
7793 ao2_link(namedgroups, member);
7794 ao2_ref(member, -1);
7795 }
7796
7797 if (!ao2_container_count(namedgroups)) {
7798 /* There were no group names specified. */
7799 ao2_ref(namedgroups, -1);
7800 namedgroups = NULL;
7801 }
7802
7803 return (struct ast_namedgroups *) namedgroups;
7804}
#define ao2_link(container, obj)
Add an object to a container.
Definition astobj2.h:1532
#define OBJ_POINTER
Definition astobj2.h:1150
@ AO2_ALLOC_OPT_LOCK_NOLOCK
Definition astobj2.h:367
int ao2_container_count(struct ao2_container *c)
Returns the number of elements in a container.
#define ao2_find(container, arg, flags)
Definition astobj2.h:1736
#define ao2_alloc_options(data_size, destructor_fn, options)
Definition astobj2.h:404
@ OBJ_NODATA
Definition astobj2.h:1044
@ OBJ_UNLINK
Definition astobj2.h:1039
#define ao2_container_alloc_hash(ao2_options, container_options, n_buckets, hash_fn, sort_fn, cmp_fn)
Allocate and initialize a hash container with the desired number of buckets.
Definition astobj2.h:1303
static int namedgroup_cmp_cb(void *obj, void *arg, int flags)
Comparison function used for named group container.
Definition channel.c:7733
static int namedgroup_hash_cb(const void *obj, const int flags)
Hashing function used for named group container.
Definition channel.c:7742
static force_inline int attribute_pure ast_str_hash(const char *str)
Compute a hash value on a string.
Definition strings.h:1259
char * ast_trim_blanks(char *str)
Trims trailing whitespace characters from a string.
Definition strings.h:186
char * ast_strip(char *s)
Strip leading/trailing whitespace from a string.
Definition strings.h:223
char *attribute_pure ast_skip_blanks(const char *str)
Gets a pointer to the first non-whitespace character in a string.
Definition strings.h:161
Generic container type.
Named group member structure.
Definition channel.c:7725

References AO2_ALLOC_OPT_LOCK_NOLOCK, ao2_alloc_options, ao2_container_alloc_hash, ao2_container_count(), ao2_find, ao2_link, ao2_ref, ast_skip_blanks(), ast_str_hash(), ast_strdupa, ast_strip(), ast_strlen_zero(), ast_trim_blanks(), c, len(), namedgroup_cmp_cb(), namedgroup_hash_cb(), NULL, OBJ_NODATA, OBJ_POINTER, OBJ_UNLINK, and strsep().

Referenced by func_channel_write_real(), named_groups_handler(), and process_dahdi().

◆ ast_hangup()

void ast_hangup ( struct ast_channel chan)

Hangup a channel.

Hang up a channel.

Definition at line 2574 of file channel.c.

2575{
2576 /* Be NULL safe for RAII_VAR() usage. */
2577 if (!chan) {
2578 return;
2579 }
2580
2581 ast_debug(1, "Channel %p '%s' hanging up. Refs: %d\n", chan, ast_channel_name(chan),
2582 ao2_ref(chan, 0));
2583
2585
2586 ast_channel_lock(chan);
2587
2588 while (ast_channel_masq(chan) || ast_channel_masqr(chan)) {
2590 }
2591
2592 /* Mark as a zombie so a masquerade cannot be setup on this channel. */
2594
2595 ast_channel_unlock(chan);
2596
2597 /*
2598 * XXX if running the hangup handlers here causes problems
2599 * because the handlers take too long to execute, we could move
2600 * the meat of this function into another thread. A thread
2601 * where channels go to die.
2602 *
2603 * If this is done, ast_autoservice_chan_hangup_peer() will no
2604 * longer be needed.
2605 */
2607 ast_channel_unlink(chan);
2608 ast_channel_lock(chan);
2609
2610 destroy_hooks(chan);
2611
2612 free_translation(chan);
2613 /* Close audio stream */
2614 if (ast_channel_stream(chan)) {
2617 }
2618 /* Close video stream */
2619 if (ast_channel_vstream(chan)) {
2622 }
2623 if (ast_channel_sched(chan)) {
2626 }
2627
2628 if (ast_channel_generatordata(chan)) { /* Clear any tone stuff remaining */
2629 if (ast_channel_generator(chan) && ast_channel_generator(chan)->release) {
2631 }
2632 }
2635
2637 ast_log(LOG_WARNING, "Hard hangup called by thread LWP %d on %s, while blocked by thread LWP %d in procedure %s! Expect a failure\n",
2639 ast_channel_blockproc(chan));
2640 ast_assert(0);
2641 }
2642
2643 if (ast_channel_tech(chan)->hangup) {
2644 ast_channel_tech(chan)->hangup(chan);
2645 }
2646
2647 ast_channel_unlock(chan);
2648
2649 ast_cc_offer(chan);
2650
2651 ast_channel_unref(chan);
2652}
int ast_cc_offer(struct ast_channel *caller_chan)
Offer CC to a caller.
Definition ccss.c:3780
static int hangup(void *data)
static void destroy_hooks(struct ast_channel *chan)
Definition channel.c:2563
static void free_translation(struct ast_channel *clonechan)
Definition channel.c:2520
int ast_autoservice_stop(struct ast_channel *chan)
Stop servicing a channel for us...
struct ast_channel * ast_channel_masq(const struct ast_channel *chan)
int ast_channel_blocker_tid(const struct ast_channel *chan)
void ast_channel_stream_set(struct ast_channel *chan, struct ast_filestream *value)
const char * ast_channel_blockproc(const struct ast_channel *chan)
struct ast_filestream * ast_channel_vstream(const struct ast_channel *chan)
struct ast_filestream * ast_channel_stream(const struct ast_channel *chan)
struct ast_channel * ast_channel_masqr(const struct ast_channel *chan)
void ast_channel_vstream_set(struct ast_channel *chan, struct ast_filestream *value)
int ast_closestream(struct ast_filestream *f)
Closes a stream.
Definition file.c:1130
#define CHANNEL_DEADLOCK_AVOIDANCE(chan)
Definition lock.h:481
int ast_pbx_hangup_handler_run(struct ast_channel *chan)
Run all hangup handlers on the channel.
int(*const hangup)(struct ast_channel *chan)
Hangup (and possibly destroy) the channel.
Definition channel.h:724
int ast_get_tid(void)
Get current thread ID.
Definition utils.c:2786

References ao2_ref, ast_assert, ast_autoservice_stop(), ast_cc_offer(), ast_channel_blocker_tid(), ast_channel_blockproc(), ast_channel_flags(), ast_channel_generator(), ast_channel_generator_set(), ast_channel_generatordata(), ast_channel_generatordata_set(), ast_channel_lock, ast_channel_masq(), ast_channel_masqr(), ast_channel_name(), ast_channel_sched(), ast_channel_sched_set(), ast_channel_stream(), ast_channel_stream_set(), ast_channel_unlink(), ast_channel_unlock, ast_channel_unref, ast_channel_vstream(), ast_channel_vstream_set(), ast_closestream(), ast_debug, AST_FLAG_BLOCKING, AST_FLAG_ZOMBIE, ast_get_tid(), ast_log, ast_pbx_hangup_handler_run(), ast_sched_context_destroy(), ast_set_flag, ast_test_flag, CHANNEL_DEADLOCK_AVOIDANCE, destroy_hooks(), free_translation(), hangup(), ast_channel_tech::hangup, LOG_WARNING, NULL, and ast_generator::release.

Referenced by __analog_handle_event(), __analog_ss_thread(), __ast_pbx_run(), __ast_request_and_dial(), alloc_playback_chan(), analog_handle_init_event(), analog_ss_thread(), announce_request(), announce_to_dial(), answer_exec_run(), ari_bridges_play_new(), ast_ari_bridges_record(), ast_async_goto(), ast_autoservice_chan_hangup_peer(), ast_bridge_add_channel(), ast_bridge_run_after_goto(), ast_call_forward(), ast_channel_yank(), ast_dial_destroy(), ast_dial_hangup(), ast_iax2_new(), ast_pbx_outgoing_exten_predial(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), ast_unreal_hangup(), attended_transfer_bridge(), begin_dial_channel(), blind_transfer_bridge(), bridge_channel_control_thread(), bridge_moh_create(), build_conf(), call_pickup_incoming_request(), chan_data_destroy(), chan_pjsip_new(), chanavail_exec(), clear_caller(), conf_free(), conf_run(), conf_start_record(), console_new(), create_msg_q_chan(), dahdi_handle_event(), dahdi_new(), destroy_conference_bridge(), dial_exec_full(), do_forward(), do_hang(), do_monitor(), do_monitor_headset(), feature_attended_transfer(), generic_recall(), handle_call_forward(), handle_call_outgoing(), handle_eval_function(), handle_exec(), handle_frame(), handle_init_event(), handle_timeout_trip(), hangup_playback(), hangupcalls(), hanguptree(), iax2_request(), jingle_action_session_initiate(), local_call(), make_channel(), mbl_ast_hangup(), media_request_helper(), meetme_menu_admin_extended(), moh_channel_thread(), monitor_dial(), mwi_thread(), my_distinctive_ring(), my_handle_notify_message(), ooh323_new(), park_local_transfer(), parking_blind_transfer_park(), pbx_outgoing_exec(), pbx_start_incoming_request(), push_announcer(), read_test(), recalling_exit(), refer_incoming_invite_request(), reject_incoming_call(), request_channel(), retransfer_enter(), safe_hangup(), snoop_stasis_thread(), stasis_app_control_snoop(), unistim_new(), wait_for_answer(), and wait_for_answer().

◆ ast_indicate()

int ast_indicate ( struct ast_channel chan,
int  condition 
)

Indicates condition of channel.

Note
Absolutely NO channel locks should be held before calling this function.
Indicate a condition such as AST_CONTROL_BUSY, AST_CONTROL_RINGING, or AST_CONTROL_CONGESTION on a channel
Parameters
chanchannel to change the indication
conditionwhich condition to indicate on the channel
Returns
Returns 0 on success, -1 on failure

Definition at line 4332 of file channel.c.

4333{
4334 return ast_indicate_data(chan, condition, NULL, 0);
4335}

References ast_indicate_data(), and NULL.

Referenced by __ast_play_and_record(), answer_trunk_chan(), app_control_dtmf(), app_control_hold(), app_control_moh_start(), app_control_progress(), app_control_ring(), app_control_ring_stop(), app_control_silence_start(), app_control_unhold(), app_exec(), ast_bridge_channel_feature_digit(), ast_bridge_set_single_src_video_mode(), ast_bridge_update_talker_src_video_mode(), ast_raw_answer_with_stream_topology(), bridge_channel_do_callback(), bridge_channel_event_join_leave(), bridge_channel_handle_action(), bridge_channel_handle_control(), bridge_channel_handle_interval(), bridge_channel_internal_join(), caller_joined_bridge(), channel_do_masquerade(), cli_console_answer(), conf_run(), console_call(), dial_exec_full(), dial_trunk(), disa_exec(), do_forward(), dtmf_stream(), handle_frame(), handle_recordfile(), indicate_busy(), indicate_congestion(), mf_stream(), monitor_dial(), participant_entertainment_start(), participant_entertainment_stop(), pbx_builtin_incomplete(), pbx_builtin_proceeding(), pbx_builtin_progress(), pbx_builtin_ringing(), pbx_builtin_waitexten(), play_on_channel(), pre_bridge_setup(), queue_exec(), record_exec(), rna(), say_periodic_announcement(), say_position(), send_waveform_to_channel(), sf_stream(), simple_bridge_join(), sla_handle_hold_event(), sla_station_exec(), sla_trunk_exec(), softmix_bridge_join(), try_calling(), vm_exec(), wait_for_answer(), and wait_for_answer().

◆ ast_indicate_data()

int ast_indicate_data ( struct ast_channel chan,
int  condition,
const void *  data,
size_t  datalen 
)

Indicates condition of channel, with payload.

Note
Absolutely NO channel locks should be held before calling this function.
Indicate a condition such as AST_CONTROL_HOLD with payload being music on hold class
Parameters
chanchannel to change the indication
conditionwhich condition to indicate on the channel
datapointer to payload data
datalensize of payload data
Returns
Returns 0 on success, -1 on failure

Definition at line 4710 of file channel.c.

4711{
4712 int res;
4713 /* this frame is used by framehooks. if it is set, we must free it at the end of this function */
4714 struct ast_frame *awesome_frame = NULL;
4715
4716 ast_channel_lock(chan);
4717
4718 /* Don't bother if the channel is about to go away, anyway. */
4721 && _condition != AST_CONTROL_MASQUERADE_NOTIFY) {
4722 res = -1;
4723 goto indicate_cleanup;
4724 }
4725
4727 /* Do framehooks now, do it, go, go now */
4728 struct ast_frame frame = {
4730 .subclass.integer = _condition,
4731 .data.ptr = (void *) data, /* this cast from const is only okay because we do the ast_frdup below */
4732 .datalen = datalen
4733 };
4734
4735 /* we have now committed to freeing this frame */
4736 awesome_frame = ast_frdup(&frame);
4737
4738 /* who knows what we will get back! the anticipation is killing me. */
4740 awesome_frame);
4741 if (!awesome_frame
4742 || awesome_frame->frametype != AST_FRAME_CONTROL) {
4743 res = 0;
4744 goto indicate_cleanup;
4745 }
4746
4747 _condition = awesome_frame->subclass.integer;
4748 data = awesome_frame->data.ptr;
4749 datalen = awesome_frame->datalen;
4750 }
4751
4752 res = indicate_data_internal(chan, _condition, data, datalen);
4753
4754indicate_cleanup:
4755 ast_channel_unlock(chan);
4756 if (awesome_frame) {
4757 ast_frfree(awesome_frame);
4758 }
4759
4760 return res;
4761}
int ast_channel_is_leaving_bridge(struct ast_channel *chan)
Determine if a channel is leaving a bridge, but not hung up.
Definition channel.c:10660
static int indicate_data_internal(struct ast_channel *chan, int _condition, const void *data, size_t datalen)
Definition channel.c:4526
int ast_framehook_list_is_empty(struct ast_framehook_list *framehooks)
Determine if an framehook list is empty or not.
Definition framehook.c:274
struct ast_frame * ast_framehook_list_write_event(struct ast_framehook_list *framehooks, struct ast_frame *frame)
This is used by the channel API push a frame write event to a channel's framehook list.
Definition framehook.c:313
@ AST_CONTROL_MASQUERADE_NOTIFY

References ast_channel_flags(), ast_channel_framehooks(), ast_channel_is_leaving_bridge(), ast_channel_lock, ast_channel_unlock, ast_check_hangup(), AST_CONTROL_MASQUERADE_NOTIFY, AST_FLAG_ZOMBIE, AST_FRAME_CONTROL, ast_framehook_list_is_empty(), ast_framehook_list_write_event(), ast_frdup, ast_frfree, ast_test_flag, ast_frame::data, ast_frame::datalen, ast_frame::frametype, indicate_data_internal(), ast_frame_subclass::integer, NULL, ast_frame::ptr, and ast_frame::subclass.

Referenced by __ast_read(), action_aocmessage(), app_exec(), ast_ari_channels_transfer_progress(), ast_channel_update_connected_line(), ast_channel_update_redirecting(), ast_handle_cc_control_frame(), ast_indicate(), bridge_channel_handle_control(), bridge_channel_internal_join(), channel_do_masquerade(), dial_exec_full(), disable_t38(), fax_gateway_indicate_t38(), generic_fax_exec(), handle_frame(), participant_entertainment_start(), pbx_builtin_waitexten(), receivefax_t38_init(), sendfax_t38_init(), set_fax_t38_caps(), wait_for_answer(), wait_for_answer(), and wait_for_winner().

◆ ast_install_music_functions()

void ast_install_music_functions ( int(*)(struct ast_channel *, const char *, const char *)  start_ptr,
void(*)(struct ast_channel *)  stop_ptr,
void(*)(struct ast_channel *)  cleanup_ptr 
)

Definition at line 7824 of file channel.c.

7827{
7828 ast_moh_start_ptr = start_ptr;
7829 ast_moh_stop_ptr = stop_ptr;
7830 ast_moh_cleanup_ptr = cleanup_ptr;
7831}
static void(* ast_moh_cleanup_ptr)(struct ast_channel *)
Definition channel.c:7822
static void(* ast_moh_stop_ptr)(struct ast_channel *)
Definition channel.c:7821
static int(* ast_moh_start_ptr)(struct ast_channel *, const char *, const char *)
Definition channel.c:7820

References ast_moh_cleanup_ptr, ast_moh_start_ptr, and ast_moh_stop_ptr.

Referenced by load_module(), and reload().

◆ ast_is_deferrable_frame()

int ast_is_deferrable_frame ( const struct ast_frame frame)

Should we keep this frame for later?

There are functions such as ast_safe_sleep which will service a channel to ensure that it does not have a large backlog of queued frames. When this happens, we want to hold on to specific frame types and just drop others. This function will tell if the frame we just read should be held onto.

Parameters
frameThe frame we just read
Return values
1frame should be kept
0frame should be dropped

Definition at line 1454 of file channel.c.

1455{
1456 /* Do not add a default entry in this switch statement. Each new
1457 * frame type should be addressed directly as to whether it should
1458 * be queued up or not.
1459 */
1460 switch (frame->frametype) {
1463 case AST_FRAME_CONTROL:
1464 case AST_FRAME_TEXT:
1466 case AST_FRAME_IMAGE:
1467 case AST_FRAME_HTML:
1468 return 1;
1469
1470 case AST_FRAME_DTMF_END:
1472 case AST_FRAME_VOICE:
1473 case AST_FRAME_VIDEO:
1474 case AST_FRAME_NULL:
1475 case AST_FRAME_IAX:
1476 case AST_FRAME_CNG:
1477 case AST_FRAME_MODEM:
1478 case AST_FRAME_RTCP:
1479 return 0;
1480 }
1481 return 0;
1482}

References AST_FRAME_BRIDGE_ACTION, AST_FRAME_BRIDGE_ACTION_SYNC, AST_FRAME_CNG, AST_FRAME_CONTROL, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, AST_FRAME_HTML, AST_FRAME_IAX, AST_FRAME_IMAGE, AST_FRAME_MODEM, AST_FRAME_NULL, AST_FRAME_RTCP, AST_FRAME_TEXT, AST_FRAME_TEXT_DATA, AST_FRAME_VIDEO, AST_FRAME_VOICE, and ast_frame::frametype.

Referenced by ast_bridge_channel_queue_frame(), autoservice_run(), and safe_sleep_conditional().

◆ ast_moh_cleanup()

void ast_moh_cleanup ( struct ast_channel chan)

Clean up music on hold state on a given channel.

Parameters
chanThe channel where music on hold was configured.
Deprecated:
This function no longer does anything but is kept for backwards compatibility.

Definition at line 7856 of file channel.c.

7857{
7858 /* A nop but needed for API compat */
7859}

◆ ast_moh_start()

int ast_moh_start ( struct ast_channel chan,
const char *  mclass,
const char *  interpclass 
)

Turn on music on hold on a given channel.

Parameters
chanThe channel structure that will get music on hold
mclassThe class to use if the musicclass is not currently set on the channel structure. NULL and the empty string are equivalent.
interpclassThe class to use if the musicclass is not currently set on the channel structure or in the mclass argument. NULL and the empty string are equivalent.
Return values
Zeroon success
non-zeroon failure

Definition at line 7840 of file channel.c.

7841{
7843 return ast_moh_start_ptr(chan, mclass, interpclass);
7844
7845 ast_verb(3, "Music class %s requested but no musiconhold loaded.\n", mclass ? mclass : (interpclass ? interpclass : "default"));
7846
7847 return -1;
7848}

References ast_moh_start_ptr, and ast_verb.

Referenced by app_control_moh_start(), app_exec(), ast_ari_bridges_start_moh(), ast_bridge_channel_playfile(), ast_unreal_indicate(), chan_pjsip_indicate(), channel_do_masquerade(), conf_moh_start(), conf_moh_unsuspend(), conf_start_moh(), console_indicate(), dahdi_indicate(), dial_exec_full(), handle_setmusic(), iax2_indicate(), jingle_indicate(), limits_interval_playback(), moh_handle_digit(), monitor_dial(), ooh323_indicate(), participant_entertainment_start(), play_moh_exec(), queue_exec(), retrydial_exec(), rna(), say_periodic_announcement(), say_position(), start_moh_exec(), and unistim_indicate().

◆ ast_moh_stop()

void ast_moh_stop ( struct ast_channel chan)

◆ ast_namedgroups_intersect()

int ast_namedgroups_intersect ( struct ast_namedgroups *  a,
struct ast_namedgroups *  b 
)

Return TRUE if group a and b contain at least one common groupname.

Definition at line 8196 of file channel.c.

8197{
8198 void *match;
8199 struct ao2_container *group_a = (struct ao2_container *) a;
8200 struct ao2_container *group_b = (struct ao2_container *) b;
8201
8202 if (!a || !b) {
8203 return 0;
8204 }
8205
8206 /*
8207 * Do groups a and b intersect? Since a and b are hash tables,
8208 * the average time complexity is:
8209 * O(a.count <= b.count ? a.count : b.count)
8210 */
8211 if (ao2_container_count(group_b) < ao2_container_count(group_a)) {
8212 /* Traverse over the smaller group. */
8213 SWAP(group_a, group_b);
8214 }
8215 match = ao2_callback(group_a, 0, namedgroup_match, group_b);
8217
8218 return match != NULL;
8219}
#define ao2_callback(c, flags, cb_fn, arg)
ao2_callback() is a generic function that applies cb_fn() to all objects in a container,...
Definition astobj2.h:1693
static int match(struct ast_sockaddr *addr, unsigned short callno, unsigned short dcallno, const struct chan_iax2_pvt *cur, int check_dcallno)
Definition chan_iax2.c:2401
static int namedgroup_match(void *obj, void *arg, int flags)
Definition channel.c:8186
static struct test_val b
static struct test_val a
#define SWAP(a, b)
Definition utils.h:256

References a, ao2_callback, ao2_cleanup, ao2_container_count(), b, match(), namedgroup_match(), NULL, and SWAP.

Referenced by find_channel_by_group().

◆ ast_party_caller_copy()

void ast_party_caller_copy ( struct ast_party_caller dest,
const struct ast_party_caller src 
)

Copy the source caller information to the destination caller.

Since
1.8
Parameters
destDestination caller
srcSource caller

Definition at line 1973 of file channel.c.

1974{
1975 if (dest == src) {
1976 /* Don't copy to self */
1977 return;
1978 }
1979
1980 ast_party_id_copy(&dest->id, &src->id);
1981 ast_party_id_copy(&dest->ani, &src->ani);
1982 ast_party_id_copy(&dest->priv, &src->priv);
1983 dest->ani2 = src->ani2;
1984}
struct ast_party_id priv
Private caller party ID.
Definition channel.h:432

References ast_party_caller::ani, ast_party_caller::ani2, ast_party_id_copy(), ast_party_caller::id, and ast_party_caller::priv.

Referenced by recalling_enter().

◆ ast_party_caller_free()

void ast_party_caller_free ( struct ast_party_caller doomed)

Destroy the caller party contents.

Since
1.8
Parameters
doomedThe caller party to destroy.

Definition at line 2002 of file channel.c.

2003{
2004 ast_party_id_free(&doomed->id);
2005 ast_party_id_free(&doomed->ani);
2006 ast_party_id_free(&doomed->priv);
2007}
void ast_party_id_free(struct ast_party_id *doomed)
Destroy the party id contents.
Definition channel.c:1798

References ast_party_caller::ani, ast_party_id_free(), ast_party_caller::id, and ast_party_caller::priv.

Referenced by ast_channel_destructor(), ast_dummy_channel_destructor(), callerid_write(), dial_trunk(), my_get_callerid(), and sla_ring_station().

◆ ast_party_caller_init()

void ast_party_caller_init ( struct ast_party_caller init)

Initialize the given caller structure.

Since
1.8
Parameters
initCaller structure to initialize.

Definition at line 1965 of file channel.c.

1966{
1967 ast_party_id_init(&init->id);
1968 ast_party_id_init(&init->ani);
1969 ast_party_id_init(&init->priv);
1970 init->ani2 = 0;
1971}
void ast_party_id_init(struct ast_party_id *init)
Initialize the given party id structure.
Definition channel.c:1744

References ast_party_caller::ani, ast_party_caller::ani2, ast_party_id_init(), ast_party_caller::id, and ast_party_caller::priv.

Referenced by __ast_channel_alloc_ap(), dial_trunk(), queue_connected_line_update(), and sla_ring_station().

◆ ast_party_caller_set()

void ast_party_caller_set ( struct ast_party_caller dest,
const struct ast_party_caller src,
const struct ast_set_party_caller update 
)

Set the caller information based on another caller source.

Since
1.8

This is similar to ast_party_caller_copy, except that NULL values for strings in the src parameter indicate not to update the corresponding dest values.

Parameters
destThe caller one wishes to update
srcThe new caller values to update the dest
updateWhat caller information to update. NULL if all.

Definition at line 1994 of file channel.c.

1995{
1996 ast_party_id_set(&dest->id, &src->id, update ? &update->id : NULL);
1997 ast_party_id_set(&dest->ani, &src->ani, update ? &update->ani : NULL);
1998 ast_party_id_set(&dest->priv, &src->priv, update ? &update->priv : NULL);
1999 dest->ani2 = src->ani2;
2000}
void ast_party_id_set(struct ast_party_id *dest, const struct ast_party_id *src, const struct ast_set_party_id *update)
Set the source party id information into the destination party id.
Definition channel.c:1775

References ast_party_caller::ani, ast_party_caller::ani2, ast_party_id_set(), ast_party_caller::id, NULL, ast_party_caller::priv, and update().

Referenced by ast_channel_set_caller(), ast_channel_set_caller_event(), callerid_write(), and my_get_callerid().

◆ ast_party_caller_set_init()

void ast_party_caller_set_init ( struct ast_party_caller init,
const struct ast_party_caller guide 
)

Initialize the given caller structure using the given guide for a set update operation.

Since
1.8

The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.

Parameters
initCaller structure to initialize.
guideSource caller to use as a guide in initializing.

Definition at line 1986 of file channel.c.

1987{
1988 ast_party_id_set_init(&init->id, &guide->id);
1989 ast_party_id_set_init(&init->ani, &guide->ani);
1990 ast_party_id_set_init(&init->priv, &guide->priv);
1991 init->ani2 = guide->ani2;
1992}
void ast_party_id_set_init(struct ast_party_id *init, const struct ast_party_id *guide)
Initialize the given party id structure using the given guide for a set update operation.
Definition channel.c:1767

References ast_party_caller::ani, ast_party_caller::ani2, ast_party_id_set_init(), ast_party_caller::id, and ast_party_caller::priv.

Referenced by callerid_write(), dial_exec_full(), do_forward(), my_get_callerid(), and ring_entry().

◆ ast_party_connected_line_collect_caller()

void ast_party_connected_line_collect_caller ( struct ast_party_connected_line connected,
struct ast_party_caller caller 
)

Collect the caller party information into a connected line structure.

Since
1.8
Parameters
connectedCollected caller information for the connected line
callerCaller information.
Warning
This is a shallow copy.
DO NOT call ast_party_connected_line_free() on the filled in connected line structure!

Definition at line 2050 of file channel.c.

2051{
2052 connected->id = caller->id;
2053 connected->ani = caller->ani;
2054 connected->priv = caller->priv;
2055 connected->ani2 = caller->ani2;
2057}
@ AST_CONNECTED_LINE_UPDATE_SOURCE_UNKNOWN
Definition callerid.h:552

References ast_party_caller::ani, ast_party_caller::ani2, AST_CONNECTED_LINE_UPDATE_SOURCE_UNKNOWN, connected, ast_party_caller::id, and ast_party_caller::priv.

◆ ast_party_connected_line_copy()

void ast_party_connected_line_copy ( struct ast_party_connected_line dest,
const struct ast_party_connected_line src 
)

Copy the source connected line information to the destination connected line.

Since
1.8
Parameters
destDestination connected line
srcSource connected line

Definition at line 2018 of file channel.c.

2019{
2020 if (dest == src) {
2021 /* Don't copy to self */
2022 return;
2023 }
2024
2025 ast_party_id_copy(&dest->id, &src->id);
2026 ast_party_id_copy(&dest->ani, &src->ani);
2027 ast_party_id_copy(&dest->priv, &src->priv);
2028 dest->ani2 = src->ani2;
2029 dest->source = src->source;
2030}
int source
Information about the source of an update.
Definition channel.h:484
struct ast_party_id priv
Private connected party ID.
Definition channel.h:470

References ast_party_connected_line::ani, ast_party_connected_line::ani2, ast_party_id_copy(), ast_party_connected_line::id, ast_party_connected_line::priv, and ast_party_connected_line::source.

Referenced by __ast_read(), after_bridge_move_channel(), agent_login_channel_config(), ast_call_forward(), ast_channel_connected_line_sub(), ast_do_pickup(), attended_transfer_properties_alloc(), dial_exec_full(), do_forward(), indicate_connected_line(), recalling_enter(), retransfer_enter(), try_calling(), wait_for_answer(), and wait_for_answer().

◆ ast_party_connected_line_free()

void ast_party_connected_line_free ( struct ast_party_connected_line doomed)

◆ ast_party_connected_line_init()

void ast_party_connected_line_init ( struct ast_party_connected_line init)

◆ ast_party_connected_line_set()

void ast_party_connected_line_set ( struct ast_party_connected_line dest,
const struct ast_party_connected_line src,
const struct ast_set_party_connected_line update 
)

Set the connected line information based on another connected line source.

Since
1.8

This is similar to ast_party_connected_line_copy, except that NULL values for strings in the src parameter indicate not to update the corresponding dest values.

Parameters
destThe connected line one wishes to update
srcThe new connected line values to update the dest
updateWhat connected line information to update. NULL if all.

Definition at line 2041 of file channel.c.

2042{
2043 ast_party_id_set(&dest->id, &src->id, update ? &update->id : NULL);
2044 ast_party_id_set(&dest->ani, &src->ani, update ? &update->ani : NULL);
2045 ast_party_id_set(&dest->priv, &src->priv, update ? &update->priv : NULL);
2046 dest->ani2 = src->ani2;
2047 dest->source = src->source;
2048}

References ast_party_connected_line::ani, ast_party_connected_line::ani2, ast_party_id_set(), ast_party_connected_line::id, NULL, ast_party_connected_line::priv, ast_party_connected_line::source, and update().

Referenced by ast_channel_set_connected_line(), wait_for_answer(), wait_for_answer(), and wait_for_winner().

◆ ast_party_connected_line_set_init()

void ast_party_connected_line_set_init ( struct ast_party_connected_line init,
const struct ast_party_connected_line guide 
)

Initialize the given connected line structure using the given guide for a set update operation.

Since
1.8

The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.

Parameters
initConnected line structure to initialize.
guideSource connected line to use as a guide in initializing.

Definition at line 2032 of file channel.c.

2033{
2034 ast_party_id_set_init(&init->id, &guide->id);
2035 ast_party_id_set_init(&init->ani, &guide->ani);
2036 ast_party_id_set_init(&init->priv, &guide->priv);
2037 init->ani2 = guide->ani2;
2038 init->source = guide->source;
2039}

References ast_party_connected_line::ani, ast_party_connected_line::ani2, ast_party_id_set_init(), ast_party_connected_line::id, ast_party_connected_line::priv, and ast_party_connected_line::source.

Referenced by __ast_request_and_dial(), ari_channels_handle_originate_with_id(), connectedline_write(), dial_exec_full(), indicate_connected_line(), pbx_outgoing_attempt(), wait_for_answer(), wait_for_answer(), and wait_for_winner().

◆ ast_party_dialed_copy()

void ast_party_dialed_copy ( struct ast_party_dialed dest,
const struct ast_party_dialed src 
)

Copy the source dialed party information to the destination dialed party.

Since
1.8
Parameters
destDestination dialed party
srcSource dialed party

Definition at line 1923 of file channel.c.

1924{
1925 if (dest == src) {
1926 /* Don't copy to self */
1927 return;
1928 }
1929
1930 ast_free(dest->number.str);
1931 dest->number.str = ast_strdup(src->number.str);
1932 dest->number.plan = src->number.plan;
1935}
void ast_party_subaddress_copy(struct ast_party_subaddress *dest, const struct ast_party_subaddress *src)
Copy the source party subaddress information to the destination party subaddress.
Definition channel.c:1692
struct ast_party_subaddress subaddress
Dialed/Called subaddress.
Definition channel.h:393
char * str
Subscriber phone number (Malloced)
Definition channel.h:388
int plan
Q.931 Type-Of-Number and Numbering-Plan encoded fields.
Definition channel.h:390
struct ast_party_dialed::@217 number
Dialed/Called number.
int transit_network_select
Transit Network Select.
Definition channel.h:399

References ast_free, ast_party_subaddress_copy(), ast_strdup, ast_party_dialed::number, ast_party_dialed::plan, ast_party_dialed::str, ast_party_dialed::subaddress, and ast_party_dialed::transit_network_select.

Referenced by ast_unreal_call_setup().

◆ ast_party_dialed_free()

void ast_party_dialed_free ( struct ast_party_dialed doomed)

Destroy the dialed party contents.

Since
1.8
Parameters
doomedThe dialed party to destroy.

Definition at line 1958 of file channel.c.

1959{
1960 ast_free(doomed->number.str);
1961 doomed->number.str = NULL;
1963}
void ast_party_subaddress_free(struct ast_party_subaddress *doomed)
Destroy the party subaddress contents.
Definition channel.c:1731

References ast_free, ast_party_subaddress_free(), NULL, ast_party_dialed::number, ast_party_dialed::str, and ast_party_dialed::subaddress.

Referenced by ast_channel_destructor(), ast_dummy_channel_destructor(), and callerid_write().

◆ ast_party_dialed_init()

void ast_party_dialed_init ( struct ast_party_dialed init)

Initialize the given dialed structure.

Since
1.8
Parameters
initDialed structure to initialize.

Definition at line 1915 of file channel.c.

1916{
1917 init->number.str = NULL;
1918 init->number.plan = 0;/* Unknown */
1920 init->transit_network_select = 0;
1921}
void ast_party_subaddress_init(struct ast_party_subaddress *init)
Initialize the given subaddress structure.
Definition channel.c:1684

References ast_party_subaddress_init(), NULL, ast_party_dialed::number, ast_party_dialed::plan, ast_party_dialed::str, ast_party_dialed::subaddress, and ast_party_dialed::transit_network_select.

Referenced by __ast_channel_alloc_ap().

◆ ast_party_dialed_set()

void ast_party_dialed_set ( struct ast_party_dialed dest,
const struct ast_party_dialed src 
)

Set the dialed information based on another dialed source.

Since
1.8

This is similar to ast_party_dialed_copy, except that NULL values for strings in the src parameter indicate not to update the corresponding dest values.

Parameters
destThe dialed one wishes to update
srcThe new dialed values to update the dest

Definition at line 1945 of file channel.c.

1946{
1947 if (src->number.str && src->number.str != dest->number.str) {
1948 ast_free(dest->number.str);
1949 dest->number.str = ast_strdup(src->number.str);
1950 }
1951 dest->number.plan = src->number.plan;
1952
1954
1956}
void ast_party_subaddress_set(struct ast_party_subaddress *dest, const struct ast_party_subaddress *src)
Set the source party subaddress information into the destination party subaddress.
Definition channel.c:1714

References ast_free, ast_party_subaddress_set(), ast_strdup, ast_party_dialed::number, ast_party_dialed::plan, ast_party_dialed::str, ast_party_dialed::subaddress, and ast_party_dialed::transit_network_select.

Referenced by callerid_write().

◆ ast_party_dialed_set_init()

void ast_party_dialed_set_init ( struct ast_party_dialed init,
const struct ast_party_dialed guide 
)

Initialize the given dialed structure using the given guide for a set update operation.

Since
1.8

The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.

Parameters
initCaller structure to initialize.
guideSource dialed to use as a guide in initializing.

Definition at line 1937 of file channel.c.

1938{
1939 init->number.str = NULL;
1940 init->number.plan = guide->number.plan;
1943}
void ast_party_subaddress_set_init(struct ast_party_subaddress *init, const struct ast_party_subaddress *guide)
Initialize the given party subaddress structure using the given guide for a set update operation.
Definition channel.c:1706

References ast_party_subaddress_set_init(), NULL, ast_party_dialed::number, ast_party_dialed::plan, ast_party_dialed::str, ast_party_dialed::subaddress, and ast_party_dialed::transit_network_select.

Referenced by callerid_write().

◆ ast_party_id_copy()

void ast_party_id_copy ( struct ast_party_id dest,
const struct ast_party_id src 
)

Copy the source party id information to the destination party id.

Since
1.8
Parameters
destDestination party id
srcSource party id

Definition at line 1752 of file channel.c.

1753{
1754 if (dest == src) {
1755 /* Don't copy to self */
1756 return;
1757 }
1758
1759 ast_party_name_copy(&dest->name, &src->name);
1760 ast_party_number_copy(&dest->number, &src->number);
1762
1763 ast_free(dest->tag);
1764 dest->tag = ast_strdup(src->tag);
1765}
void ast_party_number_copy(struct ast_party_number *dest, const struct ast_party_number *src)
Copy the source party number information to the destination party number.
Definition channel.c:1639
void ast_party_name_copy(struct ast_party_name *dest, const struct ast_party_name *src)
Copy the source party name information to the destination party name.
Definition channel.c:1586
struct ast_party_subaddress subaddress
Subscriber subaddress.
Definition channel.h:346
char * tag
User-set "tag".
Definition channel.h:356

References ast_free, ast_party_name_copy(), ast_party_number_copy(), ast_party_subaddress_copy(), ast_strdup, ast_party_id::name, ast_party_id::number, ast_party_id::subaddress, and ast_party_id::tag.

Referenced by ast_connected_line_copy_from_caller(), ast_connected_line_copy_to_caller(), ast_party_caller_copy(), ast_party_connected_line_copy(), ast_party_id_merge_copy(), ast_party_redirecting_copy(), ast_sip_session_create_outgoing(), ast_sip_set_id_from_invite(), caller_id_outgoing_request(), caller_id_outgoing_response(), chan_pjsip_new(), copy_redirecting_id(), queue_connected_line_update(), set_from_header(), stir_shaken_outgoing_request(), and update_initial_connected_line().

◆ ast_party_id_free()

void ast_party_id_free ( struct ast_party_id doomed)

Destroy the party id contents.

Since
1.8
Parameters
doomedThe party id to destroy.

Definition at line 1798 of file channel.c.

1799{
1800 ast_party_name_free(&doomed->name);
1801 ast_party_number_free(&doomed->number);
1803
1804 ast_free(doomed->tag);
1805 doomed->tag = NULL;
1806}
void ast_party_name_free(struct ast_party_name *doomed)
Destroy the party name contents.
Definition channel.c:1625
void ast_party_number_free(struct ast_party_number *doomed)
Destroy the party number contents.
Definition channel.c:1678

References ast_free, ast_party_name_free(), ast_party_number_free(), ast_party_subaddress_free(), ast_party_id::name, NULL, ast_party_id::number, ast_party_id::subaddress, and ast_party_id::tag.

Referenced by ast_party_caller_free(), ast_party_connected_line_free(), ast_party_id_reset(), ast_party_redirecting_free(), caller_id_outgoing_request(), caller_id_outgoing_response(), endpoint_destructor(), fetch_callerid_num(), session_destructor(), set_from_header(), stir_shaken_outgoing_request(), and update_incoming_connected_line().

◆ ast_party_id_init()

void ast_party_id_init ( struct ast_party_id init)

Initialize the given party id structure.

Since
1.8
Parameters
initParty id structure to initialize.

Definition at line 1744 of file channel.c.

1745{
1746 ast_party_name_init(&init->name);
1749 init->tag = NULL;
1750}
void ast_party_name_init(struct ast_party_name *init)
Initialize the given name structure.
Definition channel.c:1578
void ast_party_number_init(struct ast_party_number *init)
Initialize the given number structure.
Definition channel.c:1631

References ast_party_name_init(), ast_party_number_init(), ast_party_subaddress_init(), ast_party_id::name, NULL, ast_party_id::number, ast_party_id::subaddress, and ast_party_id::tag.

Referenced by ast_party_caller_init(), ast_party_connected_line_init(), ast_party_id_reset(), ast_party_redirecting_init(), ast_sip_endpoint_alloc(), ast_sip_session_alloc(), caller_id_outgoing_request(), caller_id_outgoing_response(), dial_exec_full(), fetch_callerid_num(), set_from_header(), stir_shaken_outgoing_request(), and update_incoming_connected_line().

◆ ast_party_id_invalidate()

void ast_party_id_invalidate ( struct ast_party_id id)

Invalidate all components of the given party id.

Since
11.0
Parameters
idThe party id to invalidate.

Definition at line 1876 of file channel.c.

1877{
1878 id->name.valid = 0;
1879 id->number.valid = 0;
1880 id->subaddress.valid = 0;
1881}

◆ ast_party_id_merge()

struct ast_party_id ast_party_id_merge ( struct ast_party_id base,
struct ast_party_id overlay 
)

Merge a given party id into another given party id.

Since
11.0

This function will generate an effective party id.

Each party id component of the party id 'base' is overwritten by components of the party id 'overlay' if the overlay component is marked as valid. However the component 'tag' of the base party id remains untouched.

Parameters
baseThe party id which is merged.
overlayThe party id which is used to merge into.
Returns
The merged party id as a struct, not as a pointer.
Note
The merged party id returned is a shallow copy and must not be freed.

Definition at line 1889 of file channel.c.

1890{
1891 struct ast_party_id merged;
1892
1893 merged = *base;
1894 if (overlay->name.valid) {
1895 merged.name = overlay->name;
1896 }
1897 if (overlay->number.valid) {
1898 merged.number = overlay->number;
1899 }
1900 if (overlay->subaddress.valid) {
1901 merged.subaddress = overlay->subaddress;
1902 }
1903 /* Note the actual structure is returned and not a pointer to it! */
1904 return merged;
1905}
Information needed to identify an endpoint in a call.
Definition channel.h:340
unsigned char valid
TRUE if the subaddress information is valid/present.
Definition channel.h:330

References ast_party_id::name, ast_party_id::number, and ast_party_id::subaddress.

Referenced by ast_channel_connected_effective_id(), ast_channel_redirecting_effective_from(), ast_channel_redirecting_effective_orig(), ast_channel_redirecting_effective_to(), and ast_party_id_merge_copy().

◆ ast_party_id_merge_copy()

void ast_party_id_merge_copy ( struct ast_party_id dest,
struct ast_party_id base,
struct ast_party_id overlay 
)

Copy a merge of a given party id into another given party id to a given destination party id.

Since
11.0

Each party id component of the party id 'base' is overwritten by components of the party id 'overlay' if the 'overlay' component is marked as valid. However the component 'tag' of the 'base' party id remains untouched. The result is copied into the given party id 'dest'.

Note
The resulting merged party id is a real copy and has to be freed.
Parameters
destThe resulting merged party id.
baseThe party id which is merged.
overlayThe party id which is used to merge into.

Definition at line 1907 of file channel.c.

1908{
1909 struct ast_party_id merged;
1910
1911 merged = ast_party_id_merge(base, overlay);
1912 ast_party_id_copy(dest, &merged);
1913}
struct ast_party_id ast_party_id_merge(struct ast_party_id *base, struct ast_party_id *overlay)
Merge a given party id into another given party id.
Definition channel.c:1889

References ast_party_id_copy(), and ast_party_id_merge().

◆ ast_party_id_presentation()

int ast_party_id_presentation ( const struct ast_party_id id)

Determine the overall presentation value for the given party.

Since
1.8
Parameters
idParty to determine the overall presentation value.
Returns
Overall presentation value for the given party.

Definition at line 1808 of file channel.c.

1809{
1810 int number_priority;
1811 int number_value;
1812 int number_screening;
1813 int name_priority;
1814 int name_value;
1815
1816 /* Determine name presentation priority. */
1817 if (!id->name.valid) {
1818 name_value = AST_PRES_UNAVAILABLE;
1819 name_priority = 3;
1820 } else {
1821 name_value = id->name.presentation & AST_PRES_RESTRICTION;
1822 switch (name_value) {
1824 name_priority = 0;
1825 break;
1826 case AST_PRES_ALLOWED:
1827 name_priority = 1;
1828 break;
1830 name_priority = 2;
1831 break;
1832 default:
1833 name_value = AST_PRES_UNAVAILABLE;
1834 name_priority = 3;
1835 break;
1836 }
1837 }
1838
1839 /* Determine number presentation priority. */
1840 if (!id->number.valid) {
1841 number_screening = AST_PRES_USER_NUMBER_UNSCREENED;
1842 number_value = AST_PRES_UNAVAILABLE;
1843 number_priority = 3;
1844 } else {
1845 number_screening = id->number.presentation & AST_PRES_NUMBER_TYPE;
1846 number_value = id->number.presentation & AST_PRES_RESTRICTION;
1847 switch (number_value) {
1849 number_priority = 0;
1850 break;
1851 case AST_PRES_ALLOWED:
1852 number_priority = 1;
1853 break;
1855 number_priority = 2;
1856 break;
1857 default:
1858 number_screening = AST_PRES_USER_NUMBER_UNSCREENED;
1859 number_value = AST_PRES_UNAVAILABLE;
1860 number_priority = 3;
1861 break;
1862 }
1863 }
1864
1865 /* Select the wining presentation value. */
1866 if (name_priority < number_priority) {
1867 number_value = name_value;
1868 }
1869 if (number_value == AST_PRES_UNAVAILABLE) {
1871 }
1872
1873 return number_value | number_screening;
1874}
enum queue_result id
Definition app_queue.c:1790
#define AST_PRES_USER_NUMBER_UNSCREENED
Definition callerid.h:426
#define AST_PRES_UNAVAILABLE
Definition callerid.h:434
#define AST_PRES_RESTRICTED
Definition callerid.h:433
#define AST_PRES_ALLOWED
Definition callerid.h:432
#define AST_PRES_NUMBER_NOT_AVAILABLE
Definition callerid.h:461
#define AST_PRES_NUMBER_TYPE
Definition callerid.h:425
#define AST_PRES_RESTRICTION
Definition callerid.h:431

References AST_PRES_ALLOWED, AST_PRES_NUMBER_NOT_AVAILABLE, AST_PRES_NUMBER_TYPE, AST_PRES_RESTRICTED, AST_PRES_RESTRICTION, AST_PRES_UNAVAILABLE, AST_PRES_USER_NUMBER_UNSCREENED, and id.

Referenced by add_privacy_header(), add_privacy_params(), ast_json_party_id(), ast_sip_can_present_connected_id(), ast_str_retrieve_variable(), ast_var_channels_table(), channel_snapshot_caller_create(), iax2_call(), is_colp_update_allowed(), my_send_callerid(), party_id_build_data(), party_id_read(), queue_exec(), redirecting_read(), set_from_header(), setup_env(), and socket_process_helper().

◆ ast_party_id_reset()

void ast_party_id_reset ( struct ast_party_id id)

Destroy and initialize the given party id structure.

Since
11.0
Parameters
idThe party id to reset.

Definition at line 1883 of file channel.c.

1884{
1887}

References ast_party_id_free(), and ast_party_id_init().

Referenced by after_bridge_move_channel(), ast_do_pickup(), channel_do_masquerade(), and retransfer_enter().

◆ ast_party_id_set()

void ast_party_id_set ( struct ast_party_id dest,
const struct ast_party_id src,
const struct ast_set_party_id update 
)

Set the source party id information into the destination party id.

Since
1.8
Parameters
destThe id one wishes to update
srcThe new id values to update the dest
updateWhat id information to update. NULL if all.

Definition at line 1775 of file channel.c.

1776{
1777 if (dest == src) {
1778 /* Don't set to self */
1779 return;
1780 }
1781
1782 if (!update || update->name) {
1783 ast_party_name_set(&dest->name, &src->name);
1784 }
1785 if (!update || update->number) {
1786 ast_party_number_set(&dest->number, &src->number);
1787 }
1788 if (!update || update->subaddress) {
1790 }
1791
1792 if (src->tag && src->tag != dest->tag) {
1793 ast_free(dest->tag);
1794 dest->tag = ast_strdup(src->tag);
1795 }
1796}
void ast_party_number_set(struct ast_party_number *dest, const struct ast_party_number *src)
Set the source party number information into the destination party number.
Definition channel.c:1661
void ast_party_name_set(struct ast_party_name *dest, const struct ast_party_name *src)
Set the source party name information into the destination party name.
Definition channel.c:1608

References ast_free, ast_party_name_set(), ast_party_number_set(), ast_party_subaddress_set(), ast_strdup, ast_party_id::name, ast_party_id::number, ast_party_id::subaddress, ast_party_id::tag, and update().

Referenced by ast_party_caller_set(), ast_party_connected_line_set(), and ast_party_redirecting_set().

◆ ast_party_id_set_init()

void ast_party_id_set_init ( struct ast_party_id init,
const struct ast_party_id guide 
)

Initialize the given party id structure using the given guide for a set update operation.

Since
1.8

The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.

Parameters
initParty id structure to initialize.
guideSource party id to use as a guide in initializing.

Definition at line 1767 of file channel.c.

1768{
1769 ast_party_name_set_init(&init->name, &guide->name);
1770 ast_party_number_set_init(&init->number, &guide->number);
1772 init->tag = NULL;
1773}
void ast_party_name_set_init(struct ast_party_name *init, const struct ast_party_name *guide)
Initialize the given party name structure using the given guide for a set update operation.
Definition channel.c:1600
void ast_party_number_set_init(struct ast_party_number *init, const struct ast_party_number *guide)
Initialize the given party number structure using the given guide for a set update operation.
Definition channel.c:1653

References ast_party_name_set_init(), ast_party_number_set_init(), ast_party_subaddress_set_init(), ast_party_id::name, NULL, ast_party_id::number, ast_party_id::subaddress, and ast_party_id::tag.

Referenced by ast_party_caller_set_init(), ast_party_connected_line_set_init(), ast_party_redirecting_set_init(), and dial_exec_full().

◆ ast_party_name_copy()

void ast_party_name_copy ( struct ast_party_name dest,
const struct ast_party_name src 
)

Copy the source party name information to the destination party name.

Since
1.8
Parameters
destDestination party name
srcSource party name

Definition at line 1586 of file channel.c.

1587{
1588 if (dest == src) {
1589 /* Don't copy to self */
1590 return;
1591 }
1592
1593 ast_free(dest->str);
1594 dest->str = ast_strdup(src->str);
1595 dest->char_set = src->char_set;
1596 dest->presentation = src->presentation;
1597 dest->valid = src->valid;
1598}
int char_set
Character set the name is using.
Definition channel.h:274
int presentation
Q.931 encoded presentation-indicator encoded field.
Definition channel.h:279

References ast_free, ast_strdup, ast_party_name::char_set, ast_party_name::presentation, ast_party_name::str, and ast_party_name::valid.

Referenced by ast_party_id_copy().

◆ ast_party_name_free()

void ast_party_name_free ( struct ast_party_name doomed)

Destroy the party name contents.

Since
1.8
Parameters
doomedThe party name to destroy.

Definition at line 1625 of file channel.c.

1626{
1627 ast_free(doomed->str);
1628 doomed->str = NULL;
1629}

References ast_free, NULL, and ast_party_name::str.

Referenced by analog_ss_thread(), and ast_party_id_free().

◆ ast_party_name_init()

void ast_party_name_init ( struct ast_party_name init)

Initialize the given name structure.

Since
1.8
Parameters
initName structure to initialize.

Definition at line 1578 of file channel.c.

1579{
1580 init->str = NULL;
1583 init->valid = 0;
1584}

References AST_PARTY_CHAR_SET_ISO8859_1, AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED, ast_party_name::char_set, NULL, ast_party_name::presentation, ast_party_name::str, and ast_party_name::valid.

Referenced by analog_ss_thread(), and ast_party_id_init().

◆ ast_party_name_set()

void ast_party_name_set ( struct ast_party_name dest,
const struct ast_party_name src 
)

Set the source party name information into the destination party name.

Since
1.8
Parameters
destThe name one wishes to update
srcThe new name values to update the dest

Definition at line 1608 of file channel.c.

1609{
1610 if (dest == src) {
1611 /* Don't set to self */
1612 return;
1613 }
1614
1615 if (src->str && src->str != dest->str) {
1616 ast_free(dest->str);
1617 dest->str = ast_strdup(src->str);
1618 }
1619
1620 dest->char_set = src->char_set;
1621 dest->presentation = src->presentation;
1622 dest->valid = src->valid;
1623}

References ast_free, ast_strdup, ast_party_name::char_set, ast_party_name::presentation, ast_party_name::str, and ast_party_name::valid.

Referenced by ast_party_id_set().

◆ ast_party_name_set_init()

void ast_party_name_set_init ( struct ast_party_name init,
const struct ast_party_name guide 
)

Initialize the given party name structure using the given guide for a set update operation.

Since
1.8

The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.

Parameters
initParty name structure to initialize.
guideSource party name to use as a guide in initializing.

Definition at line 1600 of file channel.c.

1601{
1602 init->str = NULL;
1603 init->char_set = guide->char_set;
1604 init->presentation = guide->presentation;
1605 init->valid = guide->valid;
1606}

References ast_party_name::char_set, NULL, ast_party_name::presentation, ast_party_name::str, and ast_party_name::valid.

Referenced by ast_party_id_set_init().

◆ ast_party_number_copy()

void ast_party_number_copy ( struct ast_party_number dest,
const struct ast_party_number src 
)

Copy the source party number information to the destination party number.

Since
1.8
Parameters
destDestination party number
srcSource party number

Definition at line 1639 of file channel.c.

1640{
1641 if (dest == src) {
1642 /* Don't copy to self */
1643 return;
1644 }
1645
1646 ast_free(dest->str);
1647 dest->str = ast_strdup(src->str);
1648 dest->plan = src->plan;
1649 dest->presentation = src->presentation;
1650 dest->valid = src->valid;
1651}
int presentation
Q.931 presentation-indicator and screening-indicator encoded fields.
Definition channel.h:297
int plan
Q.931 Type-Of-Number and Numbering-Plan encoded fields.
Definition channel.h:295

References ast_free, ast_strdup, ast_party_number::plan, ast_party_number::presentation, ast_party_number::str, and ast_party_number::valid.

Referenced by ast_party_id_copy().

◆ ast_party_number_free()

void ast_party_number_free ( struct ast_party_number doomed)

Destroy the party number contents.

Since
1.8
Parameters
doomedThe party number to destroy.

Definition at line 1678 of file channel.c.

1679{
1680 ast_free(doomed->str);
1681 doomed->str = NULL;
1682}

References ast_free, NULL, and ast_party_number::str.

Referenced by analog_ss_thread(), ast_party_id_free(), do_forward(), and wait_for_answer().

◆ ast_party_number_init()

void ast_party_number_init ( struct ast_party_number init)

Initialize the given number structure.

Since
1.8
Parameters
initNumber structure to initialize.

Definition at line 1631 of file channel.c.

1632{
1633 init->str = NULL;
1634 init->plan = 0;/* Unknown */
1636 init->valid = 0;
1637}

References AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED, NULL, ast_party_number::plan, ast_party_number::presentation, ast_party_number::str, and ast_party_number::valid.

Referenced by analog_ss_thread(), ast_party_id_init(), do_forward(), and wait_for_answer().

◆ ast_party_number_set()

void ast_party_number_set ( struct ast_party_number dest,
const struct ast_party_number src 
)

Set the source party number information into the destination party number.

Since
1.8
Parameters
destThe number one wishes to update
srcThe new number values to update the dest

Definition at line 1661 of file channel.c.

1662{
1663 if (dest == src) {
1664 /* Don't set to self */
1665 return;
1666 }
1667
1668 if (src->str && src->str != dest->str) {
1669 ast_free(dest->str);
1670 dest->str = ast_strdup(src->str);
1671 }
1672
1673 dest->plan = src->plan;
1674 dest->presentation = src->presentation;
1675 dest->valid = src->valid;
1676}

References ast_free, ast_strdup, ast_party_number::plan, ast_party_number::presentation, ast_party_number::str, and ast_party_number::valid.

Referenced by ast_party_id_set().

◆ ast_party_number_set_init()

void ast_party_number_set_init ( struct ast_party_number init,
const struct ast_party_number guide 
)

Initialize the given party number structure using the given guide for a set update operation.

Since
1.8

The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.

Parameters
initParty number structure to initialize.
guideSource party number to use as a guide in initializing.

Definition at line 1653 of file channel.c.

1654{
1655 init->str = NULL;
1656 init->plan = guide->plan;
1657 init->presentation = guide->presentation;
1658 init->valid = guide->valid;
1659}

References NULL, ast_party_number::plan, ast_party_number::presentation, ast_party_number::str, and ast_party_number::valid.

Referenced by ast_party_id_set_init().

◆ ast_party_redirecting_copy()

void ast_party_redirecting_copy ( struct ast_party_redirecting dest,
const struct ast_party_redirecting src 
)

Copy the source redirecting information to the destination redirecting.

Since
1.8
Parameters
destDestination redirecting
srcSource redirecting

Definition at line 2122 of file channel.c.

2123{
2124 if (dest == src) {
2125 /* Don't copy to self */
2126 return;
2127 }
2128
2129 ast_party_id_copy(&dest->orig, &src->orig);
2130 ast_party_id_copy(&dest->from, &src->from);
2131 ast_party_id_copy(&dest->to, &src->to);
2132 ast_party_id_copy(&dest->priv_orig, &src->priv_orig);
2133 ast_party_id_copy(&dest->priv_from, &src->priv_from);
2134 ast_party_id_copy(&dest->priv_to, &src->priv_to);
2137 dest->count = src->count;
2138}
void ast_party_redirecting_reason_copy(struct ast_party_redirecting_reason *dest, const struct ast_party_redirecting_reason *src)
Copy the source redirecting reason information to the destination redirecting reason.
Definition channel.c:2072
struct ast_party_id priv_to
Call is redirecting to a new party (Sent to the caller) - private representation.
Definition channel.h:541
struct ast_party_redirecting_reason orig_reason
Reason for the redirection by the original party.
Definition channel.h:547
struct ast_party_redirecting_reason reason
Reason for the redirection.
Definition channel.h:544
struct ast_party_id priv_from
Who is redirecting the call (Sent to the party the call is redirected toward) - private representatio...
Definition channel.h:538
struct ast_party_id from
Who is redirecting the call (Sent to the party the call is redirected toward)
Definition channel.h:529
int count
Number of times the call was redirected.
Definition channel.h:550
struct ast_party_id to
Call is redirecting to a new party (Sent to the caller)
Definition channel.h:532
struct ast_party_id orig
Who originally redirected the call (Sent to the party the call is redirected toward)
Definition channel.h:526
struct ast_party_id priv_orig
Who originally redirected the call (Sent to the party the call is redirected toward) - private repres...
Definition channel.h:535

References ast_party_id_copy(), ast_party_redirecting_reason_copy(), ast_party_redirecting::count, ast_party_redirecting::from, ast_party_redirecting::orig, ast_party_redirecting::orig_reason, ast_party_redirecting::priv_from, ast_party_redirecting::priv_orig, ast_party_redirecting::priv_to, ast_party_redirecting::reason, and ast_party_redirecting::to.

Referenced by ast_ari_channels_dial(), ast_call_forward(), ast_channel_redirecting_sub(), ast_unreal_call_setup(), begin_dial_prerun(), call_forward_inherit(), dial_exec_full(), do_forward(), ring_entry(), and wait_for_answer().

◆ ast_party_redirecting_free()

void ast_party_redirecting_free ( struct ast_party_redirecting doomed)

◆ ast_party_redirecting_init()

void ast_party_redirecting_init ( struct ast_party_redirecting init)

Initialize the given redirecting structure.

Since
1.8
Parameters
initRedirecting structure to initialize.

Definition at line 2109 of file channel.c.

2110{
2111 ast_party_id_init(&init->orig);
2112 ast_party_id_init(&init->from);
2113 ast_party_id_init(&init->to);
2116 ast_party_id_init(&init->priv_to);
2119 init->count = 0;
2120}
void ast_party_redirecting_reason_init(struct ast_party_redirecting_reason *init)
Initialize the given redirecting reason structure.
Definition channel.c:2066

References ast_party_id_init(), ast_party_redirecting_reason_init(), ast_party_redirecting::count, ast_party_redirecting::from, ast_party_redirecting::orig, ast_party_redirecting::orig_reason, ast_party_redirecting::priv_from, ast_party_redirecting::priv_orig, ast_party_redirecting::priv_to, ast_party_redirecting::reason, and ast_party_redirecting::to.

Referenced by __ast_channel_alloc_ap(), ast_channel_redirecting_sub(), AST_TEST_DEFINE(), call_forward_inherit(), do_forward(), set_redirecting(), and wait_for_answer().

◆ ast_party_redirecting_reason_copy()

void ast_party_redirecting_reason_copy ( struct ast_party_redirecting_reason dest,
const struct ast_party_redirecting_reason src 
)

Copy the source redirecting reason information to the destination redirecting reason.

Parameters
destDestination redirecting reason
srcSource redirecting reason

Definition at line 2072 of file channel.c.

2073{
2074 if (dest == src) {
2075 return;
2076 }
2077
2078 ast_free(dest->str);
2079 dest->str = ast_strdup(src->str);
2080 dest->code = src->code;
2081}
int code
enum AST_REDIRECTING_REASON value for redirection
Definition channel.h:512
char * str
a string value for the redirecting reason
Definition channel.h:509

References ast_free, ast_strdup, ast_party_redirecting_reason::code, and ast_party_redirecting_reason::str.

Referenced by ast_party_redirecting_copy().

◆ ast_party_redirecting_reason_free()

void ast_party_redirecting_reason_free ( struct ast_party_redirecting_reason doomed)

Destroy the redirecting reason contents.

Parameters
doomedThe redirecting reason to destroy.

Definition at line 2103 of file channel.c.

2104{
2105 ast_free(doomed->str);
2106}

References ast_free, and ast_party_redirecting_reason::str.

Referenced by ast_party_redirecting_free().

◆ ast_party_redirecting_reason_init()

void ast_party_redirecting_reason_init ( struct ast_party_redirecting_reason init)

Initialize the given redirecting reason structure.

Parameters
initRedirecting reason structure to initialize

Definition at line 2066 of file channel.c.

2067{
2068 init->str = NULL;
2070}
@ AST_REDIRECTING_REASON_UNKNOWN
Definition callerid.h:499

References AST_REDIRECTING_REASON_UNKNOWN, ast_party_redirecting_reason::code, NULL, and ast_party_redirecting_reason::str.

Referenced by ast_party_redirecting_init().

◆ ast_party_redirecting_reason_set()

void ast_party_redirecting_reason_set ( struct ast_party_redirecting_reason dest,
const struct ast_party_redirecting_reason src 
)

Set the redirecting reason information based on another redirecting reason source.

This is similar to ast_party_redirecting_reason_copy, except that NULL values for strings in the src parameter indicate not to update the corresponding dest values.

Parameters
destThe redirecting reason one wishes to update
srcThe new redirecting reason values to update the dest

Definition at line 2089 of file channel.c.

2090{
2091 if (dest == src) {
2092 return;
2093 }
2094
2095 if (src->str && src->str != dest->str) {
2096 ast_free(dest->str);
2097 dest->str = ast_strdup(src->str);
2098 }
2099
2100 dest->code = src->code;
2101}

References ast_free, ast_strdup, ast_party_redirecting_reason::code, and ast_party_redirecting_reason::str.

Referenced by ast_party_redirecting_set().

◆ ast_party_redirecting_reason_set_init()

void ast_party_redirecting_reason_set_init ( struct ast_party_redirecting_reason init,
const struct ast_party_redirecting_reason guide 
)

Initialize the given redirecting reason structure using the given guide for a set update operation.

The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.

Parameters
initRedirecting reason structure to initialize.
guideSource redirecting reason to use as a guide in initializing.

Definition at line 2083 of file channel.c.

2084{
2085 init->str = NULL;
2086 init->code = guide->code;
2087}

References ast_party_redirecting_reason::code, NULL, and ast_party_redirecting_reason::str.

Referenced by ast_party_redirecting_set_init().

◆ ast_party_redirecting_set()

void ast_party_redirecting_set ( struct ast_party_redirecting dest,
const struct ast_party_redirecting src,
const struct ast_set_party_redirecting update 
)

Set the redirecting information based on another redirecting source.

Since
1.8

This is similar to ast_party_redirecting_copy, except that NULL values for strings in the src parameter indicate not to update the corresponding dest values.

Parameters
destThe redirecting one wishes to update
srcThe new redirecting values to update the dest
updateWhat redirecting information to update. NULL if all.

Definition at line 2153 of file channel.c.

2154{
2155 ast_party_id_set(&dest->orig, &src->orig, update ? &update->orig : NULL);
2156 ast_party_id_set(&dest->from, &src->from, update ? &update->from : NULL);
2157 ast_party_id_set(&dest->to, &src->to, update ? &update->to : NULL);
2158 ast_party_id_set(&dest->priv_orig, &src->priv_orig, update ? &update->priv_orig : NULL);
2159 ast_party_id_set(&dest->priv_from, &src->priv_from, update ? &update->priv_from : NULL);
2160 ast_party_id_set(&dest->priv_to, &src->priv_to, update ? &update->priv_to : NULL);
2163 dest->count = src->count;
2164}
void ast_party_redirecting_reason_set(struct ast_party_redirecting_reason *dest, const struct ast_party_redirecting_reason *src)
Set the redirecting reason information based on another redirecting reason source.
Definition channel.c:2089

References ast_party_id_set(), ast_party_redirecting_reason_set(), ast_party_redirecting::count, ast_party_redirecting::from, NULL, ast_party_redirecting::orig, ast_party_redirecting::orig_reason, ast_party_redirecting::priv_from, ast_party_redirecting::priv_orig, ast_party_redirecting::priv_to, ast_party_redirecting::reason, ast_party_redirecting::to, and update().

Referenced by ast_channel_set_redirecting().

◆ ast_party_redirecting_set_init()

void ast_party_redirecting_set_init ( struct ast_party_redirecting init,
const struct ast_party_redirecting guide 
)

Initialize the given redirecting id structure using the given guide for a set update operation.

Since
1.8

The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.

Parameters
initRedirecting id structure to initialize.
guideSource redirecting id to use as a guide in initializing.

Definition at line 2140 of file channel.c.

2141{
2142 ast_party_id_set_init(&init->orig, &guide->orig);
2143 ast_party_id_set_init(&init->from, &guide->from);
2144 ast_party_id_set_init(&init->to, &guide->to);
2145 ast_party_id_set_init(&init->priv_orig, &guide->priv_orig);
2146 ast_party_id_set_init(&init->priv_from, &guide->priv_from);
2147 ast_party_id_set_init(&init->priv_to, &guide->priv_to);
2150 init->count = guide->count;
2151}
void ast_party_redirecting_reason_set_init(struct ast_party_redirecting_reason *init, const struct ast_party_redirecting_reason *guide)
Initialize the given redirecting reason structure using the given guide for a set update operation.
Definition channel.c:2083

References ast_party_id_set_init(), ast_party_redirecting_reason_set_init(), ast_party_redirecting::count, ast_party_redirecting::from, ast_party_redirecting::orig, ast_party_redirecting::orig_reason, ast_party_redirecting::priv_from, ast_party_redirecting::priv_orig, ast_party_redirecting::priv_to, ast_party_redirecting::reason, and ast_party_redirecting::to.

Referenced by indicate_redirecting(), and redirecting_write().

◆ ast_party_subaddress_copy()

void ast_party_subaddress_copy ( struct ast_party_subaddress dest,
const struct ast_party_subaddress src 
)

Copy the source party subaddress information to the destination party subaddress.

Since
1.8
Parameters
destDestination party subaddress
srcSource party subaddress

Definition at line 1692 of file channel.c.

1693{
1694 if (dest == src) {
1695 /* Don't copy to self */
1696 return;
1697 }
1698
1699 ast_free(dest->str);
1700 dest->str = ast_strdup(src->str);
1701 dest->type = src->type;
1703 dest->valid = src->valid;
1704}
unsigned char odd_even_indicator
TRUE if odd number of address signals.
Definition channel.h:328
char * str
Malloced subaddress string.
Definition channel.h:315
int type
Q.931 subaddress type.
Definition channel.h:322

References ast_free, ast_strdup, ast_party_subaddress::odd_even_indicator, ast_party_subaddress::str, ast_party_subaddress::type, and ast_party_subaddress::valid.

Referenced by ast_party_dialed_copy(), and ast_party_id_copy().

◆ ast_party_subaddress_free()

void ast_party_subaddress_free ( struct ast_party_subaddress doomed)

Destroy the party subaddress contents.

Since
1.8
Parameters
doomedThe party subaddress to destroy.

Definition at line 1731 of file channel.c.

1732{
1733 ast_free(doomed->str);
1734 doomed->str = NULL;
1735}

References ast_free, NULL, and ast_party_subaddress::str.

Referenced by ast_party_dialed_free(), and ast_party_id_free().

◆ ast_party_subaddress_init()

void ast_party_subaddress_init ( struct ast_party_subaddress init)

Initialize the given subaddress structure.

Since
1.8
Parameters
initSubaddress structure to initialize.

Definition at line 1684 of file channel.c.

1685{
1686 init->str = NULL;
1687 init->type = 0;
1688 init->odd_even_indicator = 0;
1689 init->valid = 0;
1690}

References NULL, ast_party_subaddress::odd_even_indicator, ast_party_subaddress::str, ast_party_subaddress::type, and ast_party_subaddress::valid.

Referenced by ast_party_dialed_init(), and ast_party_id_init().

◆ ast_party_subaddress_set()

void ast_party_subaddress_set ( struct ast_party_subaddress dest,
const struct ast_party_subaddress src 
)

Set the source party subaddress information into the destination party subaddress.

Since
1.8
Parameters
destThe subaddress one wishes to update
srcThe new subaddress values to update the dest

Definition at line 1714 of file channel.c.

1715{
1716 if (dest == src) {
1717 /* Don't set to self */
1718 return;
1719 }
1720
1721 if (src->str && src->str != dest->str) {
1722 ast_free(dest->str);
1723 dest->str = ast_strdup(src->str);
1724 }
1725
1726 dest->type = src->type;
1728 dest->valid = src->valid;
1729}

References ast_free, ast_strdup, ast_party_subaddress::odd_even_indicator, ast_party_subaddress::str, ast_party_subaddress::type, and ast_party_subaddress::valid.

Referenced by ast_party_dialed_set(), and ast_party_id_set().

◆ ast_party_subaddress_set_init()

void ast_party_subaddress_set_init ( struct ast_party_subaddress init,
const struct ast_party_subaddress guide 
)

Initialize the given party subaddress structure using the given guide for a set update operation.

Since
1.8

The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.

Parameters
initParty subaddress structure to initialize.
guideSource party subaddress to use as a guide in initializing.

Definition at line 1706 of file channel.c.

1707{
1708 init->str = NULL;
1709 init->type = guide->type;
1711 init->valid = guide->valid;
1712}

References NULL, ast_party_subaddress::odd_even_indicator, ast_party_subaddress::str, ast_party_subaddress::type, and ast_party_subaddress::valid.

Referenced by ast_party_dialed_set_init(), and ast_party_id_set_init().

◆ ast_pre_call()

int ast_pre_call ( struct ast_channel chan,
const char *  sub_args 
)

Execute a Gosub call on the channel before a call is placed.

Since
11.0

This is called between ast_request() and ast_call() to execute a predial routine on the newly created channel.

Parameters
chanChannel to execute Gosub.
sub_argsGosub application parameter string.
Note
Absolutely NO channel locks should be held before calling this function.
Return values
0on success.
-1on error.

Definition at line 6501 of file channel.c.

6502{
6503 int (*pre_call)(struct ast_channel *chan, const char *sub_args);
6504
6505 ast_channel_lock(chan);
6506 pre_call = ast_channel_tech(chan)->pre_call;
6507 if (pre_call) {
6508 int res;
6509
6510 res = pre_call(chan, sub_args);
6511 ast_channel_unlock(chan);
6512 return res;
6513 }
6514 ast_channel_unlock(chan);
6515 return ast_app_exec_sub(NULL, chan, sub_args, 0);
6516}
int ast_app_exec_sub(struct ast_channel *autoservice_chan, struct ast_channel *sub_chan, const char *sub_args, int ignore_hangup)
Run a subroutine on a channel, placing an optional second channel into autoservice.
Definition main/app.c:297
int(* pre_call)(struct ast_channel *chan, const char *sub_args)
Execute a Gosub call on the channel in a technology specific way before a call is placed.
Definition channel.h:861

References ast_app_exec_sub(), ast_channel_lock, ast_channel_unlock, NULL, and ast_channel_tech::pre_call.

Referenced by begin_dial_prerun(), dial_exec_full(), findmeexec(), and ring_entry().

◆ ast_print_group()

char * ast_print_group ( char *  buf,
int  buflen,
ast_group_t  group 
)

Print call group and pickup group —.

Print call and pickup groups into buffer.

Definition at line 8137 of file channel.c.

8138{
8139 unsigned int i;
8140 int first = 1;
8141 char num[3];
8142
8143 buf[0] = '\0';
8144
8145 if (!group) /* Return empty string if no group */
8146 return buf;
8147
8148 for (i = 0; i <= 63; i++) { /* Max group is 63 */
8149 if (group & ((ast_group_t) 1 << i)) {
8150 if (!first) {
8151 strncat(buf, ", ", buflen - strlen(buf) - 1);
8152 } else {
8153 first = 0;
8154 }
8155 snprintf(num, sizeof(num), "%u", i);
8156 strncat(buf, num, buflen - strlen(buf) - 1);
8157 }
8158 }
8159 return buf;
8160}
struct sla_ringing_trunk * first
Definition app_sla.c:338
char buf[BUFSIZE]
Definition eagi_proxy.c:66

References buf, and first.

Referenced by callgroup_to_str(), func_channel_read(), pickupgroup_to_str(), and serialize_showchan().

◆ ast_print_namedgroups()

char * ast_print_namedgroups ( struct ast_str **  buf,
struct ast_namedgroups *  group 
)

Print named call groups and named pickup groups.

Definition at line 8162 of file channel.c.

8163{
8164 struct ao2_container *grp = (struct ao2_container *) group;
8165 struct namedgroup_member *ng;
8166 int first = 1;
8167 struct ao2_iterator it;
8168
8169 if (!grp) {
8170 return ast_str_buffer(*buf);
8171 }
8172
8173 for (it = ao2_iterator_init(grp, 0); (ng = ao2_iterator_next(&it)); ao2_ref(ng, -1)) {
8174 if (!first) {
8175 ast_str_append(buf, 0, ", ");
8176 } else {
8177 first = 0;
8178 }
8179 ast_str_append(buf, 0, "%s", ng->name);
8180 }
8182
8183 return ast_str_buffer(*buf);
8184}
#define ao2_iterator_next(iter)
Definition astobj2.h:1911
struct ao2_iterator ao2_iterator_init(struct ao2_container *c, int flags) attribute_warn_unused_result
Create an iterator for a container.
void ao2_iterator_destroy(struct ao2_iterator *iter)
Destroy a container iterator.
int ast_str_append(struct ast_str **buf, ssize_t max_len, const char *fmt,...)
Append to a thread local dynamic string.
Definition strings.h:1139
char *attribute_pure ast_str_buffer(const struct ast_str *buf)
Returns the string buffer within the ast_str buf.
Definition strings.h:761
When we need to walk through a container, we use an ao2_iterator to keep track of the current positio...
Definition astobj2.h:1821

References ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ao2_ref, ast_str_append(), ast_str_buffer(), buf, first, and namedgroup_member::name.

Referenced by func_channel_read(), named_callgroups_to_str(), and named_pickupgroups_to_str().

◆ ast_prod()

int ast_prod ( struct ast_channel chan)

Send empty audio to prime a channel driver.

Definition at line 5057 of file channel.c.

5058{
5059 struct ast_frame a = { AST_FRAME_VOICE };
5060 char nothing[128];
5061
5062 /* Send an empty audio frame to get things moving */
5063 if (ast_channel_state(chan) != AST_STATE_UP) {
5064 ast_debug(3, "Prodding channel '%s'\n", ast_channel_name(chan));
5065 a.subclass.format = ast_channel_rawwriteformat(chan);
5066 a.data.ptr = nothing + AST_FRIENDLY_OFFSET;
5067 a.src = "ast_prod"; /* this better match check in ast_write */
5068 if (ast_write(chan, &a))
5069 ast_log(LOG_WARNING, "Prodding channel '%s' failed\n", ast_channel_name(chan));
5070 }
5071 return 0;
5072}
int ast_write(struct ast_channel *chan, struct ast_frame *fr)
Write a frame to a channel This function writes the given frame to the indicated channel.
Definition channel.c:5201
struct ast_format * ast_channel_rawwriteformat(struct ast_channel *chan)

References a, ast_channel_name(), ast_channel_rawwriteformat(), ast_debug, AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_log, AST_STATE_UP, ast_write(), and LOG_WARNING.

Referenced by ast_activate_generator().

◆ ast_queue_answer()

int ast_queue_answer ( struct ast_channel chan,
const struct ast_stream_topology topology 
)

Queue an ANSWER control frame with topology.

Parameters
chanchannel to queue frame onto
topologytopology to be passed through the core to the peer channel
Return values
0success
non-zerofailure

Definition at line 1304 of file channel.c.

1305{
1306 struct ast_frame f = {
1309 .subclass.topology = (struct ast_stream_topology *)topology,
1310 };
1311 return ast_queue_frame(chan, &f);
1312}

References AST_CONTROL_ANSWER, AST_FRAME_CONTROL, ast_queue_frame(), ast_frame_subclass::integer, and ast_frame::subclass.

◆ ast_queue_control()

int ast_queue_control ( struct ast_channel chan,
enum ast_control_frame_type  control 
)

◆ ast_queue_control_data()

int ast_queue_control_data ( struct ast_channel chan,
enum ast_control_frame_type  control,
const void *  data,
size_t  datalen 
)

Queue a control frame with payload.

Parameters
chanchannel to queue frame onto
controltype of control frame
datapointer to payload data to be included in frame
datalennumber of bytes of payload data
Return values
0success
non-zerofailure

The supplied payload data is copied into the frame, so the caller's copy is not modified nor freed, and the resulting frame will retain a copy of the data even if the caller frees their local copy.

Note
This method should be treated as a 'network transport'; in other words, your frames may be transferred across an IAX2 channel to another system, which may be a different endianness than yours. Because of this, you should ensure that either your frames will never be expected to work across systems, or that you always put your payload data into 'network byte order' before calling this function.
The channel does not need to be locked before calling this function.

Definition at line 1296 of file channel.c.

1298{
1299 struct ast_frame f = { AST_FRAME_CONTROL, .subclass.integer = control, .data.ptr = (void *) data, .datalen = datalen };
1300 return ast_queue_frame(chan, &f);
1301}

References AST_FRAME_CONTROL, ast_queue_frame(), ast_frame::data, ast_frame::datalen, ast_frame_subclass::integer, and ast_frame::subclass.

Referenced by __analog_handle_event(), after_bridge_move_channel(), analog_callwaiting_deluxe(), ast_channel_queue_connected_line_update(), ast_channel_queue_redirecting_update(), chan_pjsip_incoming_response_update_cause(), close_udptl_connection(), fax_gateway_indicate_t38(), iax2_transfer(), jingle_action_session_terminate(), onModeChanged(), ooh323_indicate(), queue_read_action_payload(), setup_udptl_connection(), socket_process_helper(), t38_change_state(), t38_framehook(), t38_interpret_parameters(), transfer_redirect(), transfer_refer(), and xfer_client_on_evsub_state().

◆ ast_queue_frame()

int ast_queue_frame ( struct ast_channel chan,
struct ast_frame f 
)

Queue one or more frames to a channel's frame queue.

Parameters
chanthe channel to queue the frame(s) on
fthe frame(s) to queue. Note that the frame(s) will be duplicated by this function. It is the responsibility of the caller to handle freeing the memory associated with the frame(s) being passed if necessary.
Return values
0success
non-zerofailure

Definition at line 1171 of file channel.c.

1172{
1173 return __ast_queue_frame(chan, fin, 0, NULL);
1174}

References __ast_queue_frame(), and NULL.

Referenced by __ast_read(), action_atxfer(), action_cancel_atxfer(), apply_negotiated_sdp_stream(), ast_channel_set_unbridged_nolock(), ast_channel_setwhentohangup_tv(), ast_channel_stream_topology_changed_externally(), ast_dsp_process(), ast_msg_data_queue_frame(), ast_queue_answer(), ast_queue_cc_frame(), ast_queue_control(), ast_queue_control_data(), ast_queue_hangup(), ast_queue_hangup_with_cause(), ast_queue_hold(), ast_queue_unhold(), ast_softhangup_nolock(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), attended_transfer_exec(), bridge_channel_internal_push_full(), bridge_channel_poke(), channel_do_masquerade(), cli_console_dial(), cli_console_sendtext(), conf_stop_record(), dahdi_queue_frame(), dahdi_read(), dictate_exec(), dtmf_info_incoming_request(), exec_command_on_condition(), handle_command(), handle_incoming_request(), handle_negotiated_sdp(), iax2_queue_frame(), load_stream_readqueue(), manager_play_dtmf(), manager_send_flash(), ooh323_onReceivedDigit(), queue_dtmf_readq(), refer_incoming_invite_request(), set_interval_hook(), stream_monitor(), stream_periodic_frames(), stream_periodic_frames(), t38_tx_packet_handler(), unistim_do_senddigit(), unreal_queue_frame(), and wakeup_sub().

◆ ast_queue_frame_head()

int ast_queue_frame_head ( struct ast_channel chan,
struct ast_frame f 
)

Queue one or more frames to the head of a channel's frame queue.

Parameters
chanthe channel to queue the frame(s) on
fthe frame(s) to queue. Note that the frame(s) will be duplicated by this function. It is the responsibility of the caller to handle freeing the memory associated with the frame(s) being passed if necessary.
Return values
0success
non-zerofailure

Definition at line 1176 of file channel.c.

1177{
1178 return __ast_queue_frame(chan, fin, 1, NULL);
1179}

References __ast_queue_frame(), and NULL.

Referenced by __ast_answer(), __ast_read(), ast_autoservice_stop(), bridge_channel_queue_deferred_frames(), and safe_sleep_conditional().

◆ ast_queue_hangup()

int ast_queue_hangup ( struct ast_channel chan)

Queue a hangup frame for channel.

Queue a hangup frame.

Definition at line 1182 of file channel.c.

1183{
1186 int res, cause, tech_cause;
1187
1188 if (!blob) {
1189 return -1;
1190 }
1191
1192 /* Yeah, let's not change a lock-critical value without locking */
1193 ast_channel_lock(chan);
1195
1196 cause = ast_channel_hangupcause(chan);
1197 if (cause) {
1198 ast_json_object_set(blob, "cause", ast_json_integer_create(cause));
1199 }
1200 tech_cause = ast_channel_tech_hangupcause(chan);
1201 if (tech_cause) {
1202 ast_json_object_set(blob, "tech_cause", ast_json_integer_create(tech_cause));
1203 }
1204
1206
1207 res = ast_queue_frame(chan, &f);
1208 ast_channel_unlock(chan);
1209 return res;
1210}
int ast_channel_tech_hangupcause(const struct ast_channel *chan)
struct stasis_message_type * ast_channel_hangup_request_type(void)
Message type for when a hangup is requested on a channel.
struct ast_json * ast_json_object_create(void)
Create a new JSON object.
Definition json.c:399
struct ast_json * ast_json_integer_create(intmax_t value)
Create a JSON integer.
Definition json.c:327
int ast_json_object_set(struct ast_json *object, const char *key, struct ast_json *value)
Set a field in a JSON object.
Definition json.c:414

References ast_channel_hangup_request_type(), ast_channel_hangupcause(), ast_channel_lock, ast_channel_publish_blob(), ast_channel_softhangup_internal_flag_add(), ast_channel_tech_hangupcause(), ast_channel_unlock, AST_CONTROL_HANGUP, AST_FRAME_CONTROL, ast_json_integer_create(), ast_json_object_create(), ast_json_object_set(), ast_json_unref(), ast_queue_frame(), AST_SOFTHANGUP_DEV, ast_frame_subclass::integer, RAII_VAR, and ast_frame::subclass.

Referenced by analog_callwaiting_deluxe(), ast_app_exec_sub(), ast_unreal_fixup(), call(), chan_pjsip_session_end(), cli_console_hangup(), close_call(), iax2_destroy(), iax2_queue_hangup(), mbl_queue_hangup(), refer_incoming_invite_request(), and session_inv_on_media_update().

◆ ast_queue_hangup_with_cause()

int ast_queue_hangup_with_cause ( struct ast_channel chan,
int  cause 
)

Queue a hangup frame for channel.

Queue a hangup frame with hangupcause set.

Definition at line 1213 of file channel.c.

1214{
1215 RAII_VAR(struct ast_json *, blob, NULL, ast_json_unref);
1217 int res;
1218 int tech_cause = 0;
1219
1220 if (cause >= 0) {
1221 f.data.uint32 = cause;
1222 }
1223
1224 /* Yeah, let's not change a lock-critical value without locking */
1225 ast_channel_lock(chan);
1227 if (cause < 0) {
1229 }
1230 blob = ast_json_pack("{s: i}",
1231 "cause", cause);
1232 if (!blob) {
1233 ast_channel_unlock(chan);
1234 return -1;
1235 }
1236
1237 tech_cause = ast_channel_tech_hangupcause(chan);
1238 if (tech_cause) {
1239 ast_json_object_set(blob, "tech_cause", ast_json_integer_create(tech_cause));
1240 }
1241
1243
1244 res = ast_queue_frame(chan, &f);
1245 ast_channel_unlock(chan);
1246 return res;
1247}

References ast_channel_hangup_request_type(), ast_channel_hangupcause(), ast_channel_lock, ast_channel_publish_blob(), ast_channel_softhangup_internal_flag_add(), ast_channel_tech_hangupcause(), ast_channel_unlock, AST_CONTROL_HANGUP, AST_FRAME_CONTROL, ast_json_integer_create(), ast_json_object_set(), ast_json_pack(), ast_json_unref(), ast_queue_frame(), AST_SOFTHANGUP_DEV, ast_frame::data, ast_frame_subclass::integer, NULL, RAII_VAR, ast_frame::subclass, and ast_frame::uint32.

Referenced by __analog_handle_event(), _websocket_request_hangup(), ast_unreal_hangup(), close_call(), close_client(), dahdi_handle_event(), discard_call(), handle_call_outgoing(), jingle_action_session_terminate(), jingle_queue_hangup_with_cause(), onCallCleared(), and transfer_cancel_step2().

◆ ast_queue_hold()

int ast_queue_hold ( struct ast_channel chan,
const char *  musicclass 
)

Queue a hold frame.

Parameters
chanchannel to queue frame onto
musicclassThe suggested musicclass for the other end to use
Note
The channel does not need to be locked before calling this function.
Return values
zeroon success
non-zeroon failure

Definition at line 1249 of file channel.c.

1250{
1252 struct ast_json *blob = NULL;
1253 int res;
1254
1255 if (!ast_strlen_zero(musicclass)) {
1256 f.data.ptr = (void *) musicclass;
1257 f.datalen = strlen(musicclass) + 1;
1258
1259 blob = ast_json_pack("{s: s}",
1260 "musicclass", musicclass);
1261 }
1262
1263 ast_channel_lock(chan);
1265 ast_channel_unlock(chan);
1266
1267 res = ast_queue_frame(chan, &f);
1268
1269 ast_json_unref(blob);
1270
1271 return res;
1272}
struct stasis_message_type * ast_channel_hold_type(void)
Message type for when a channel is placed on hold.

References ast_channel_hold_type(), ast_channel_lock, ast_channel_publish_blob(), ast_channel_unlock, AST_CONTROL_HOLD, AST_FRAME_CONTROL, ast_json_pack(), ast_json_unref(), ast_queue_frame(), ast_strlen_zero(), ast_frame::data, ast_frame::datalen, ast_frame_subclass::integer, NULL, ast_frame::ptr, and ast_frame::subclass.

Referenced by __analog_handle_event(), analog_callwaiting_deluxe(), analog_hangup(), apply_negotiated_sdp_stream(), dahdi_handle_event(), dahdi_hangup(), iax2_queue_hold(), jingle_action_session_info(), sub_hold(), and transfer_call_step1().

◆ ast_queue_unhold()

int ast_queue_unhold ( struct ast_channel chan)

Queue an unhold frame.

Parameters
chanchannel to queue frame onto
Note
The channel does not need to be locked before calling this function.
Return values
zeroon success
non-zeroon failure

Definition at line 1274 of file channel.c.

1275{
1277 int res;
1278
1279 ast_channel_lock(chan);
1281 ast_channel_unlock(chan);
1282
1283 res = ast_queue_frame(chan, &f);
1284
1285 return res;
1286}
struct stasis_message_type * ast_channel_unhold_type(void)
Message type for when a channel is removed from hold.

References ast_channel_lock, ast_channel_publish_blob(), ast_channel_unhold_type(), ast_channel_unlock, AST_CONTROL_UNHOLD, AST_FRAME_CONTROL, ast_queue_frame(), ast_frame_subclass::integer, NULL, and ast_frame::subclass.

Referenced by __analog_handle_event(), __analog_ss_thread(), __dahdi_exception(), analog_callwaiting_deluxe(), analog_exception(), analog_hangup(), analog_ss_thread(), apply_negotiated_sdp_stream(), dahdi_handle_event(), dahdi_hangup(), iax2_queue_unhold(), jingle_action_session_info(), key_dial_page(), refer_incoming_invite_request(), session_inv_on_create_offer(), sub_unhold(), transfer_cancel_step2(), and unistim_hangup().

◆ ast_raw_answer()

int ast_raw_answer ( struct ast_channel chan)

Answer a channel.

Parameters
chanchannel to answer

This function answers a channel and handles all necessary call setup functions.

Note
The channel passed does not need to be locked, but is locked by the function when needed.
Unlike ast_answer(), this function will not wait for media flow to begin. The caller should be careful before sending media to the channel before incoming media arrives, as the outgoing media may be lost.
Return values
0on success
non-zeroon failure

Definition at line 2724 of file channel.c.

2725{
2727}
int ast_raw_answer_with_stream_topology(struct ast_channel *chan, struct ast_stream_topology *topology)
Answer a channel passing in a stream topology.
Definition channel.c:2672

References ast_raw_answer_with_stream_topology(), and NULL.

Referenced by __ast_answer(), answer_trunk_chan(), app_control_answer(), pbx_builtin_answer(), refer_incoming_invite_request(), and wait_for_answer().

◆ ast_raw_answer_with_stream_topology()

int ast_raw_answer_with_stream_topology ( struct ast_channel chan,
struct ast_stream_topology topology 
)

Answer a channel passing in a stream topology.

Since
18.0.0
Parameters
chanchannel to answer
topologythe peer's stream topology

This function answers a channel and handles all necessary call setup functions.

Note
The channel passed does not need to be locked, but is locked by the function when needed.
Unlike ast_answer(), this function will not wait for media flow to begin. The caller should be careful before sending media to the channel before incoming media arrives, as the outgoing media may be lost.
The topology is usually that of the peer channel and may be NULL.
Return values
0on success
non-zeroon failure

Definition at line 2672 of file channel.c.

2673{
2674 int res = 0;
2675 SCOPE_TRACE(1, "%s\n", ast_channel_name(chan));
2676
2677 ast_channel_lock(chan);
2678
2679 /* You can't answer an outbound call */
2681 ast_channel_unlock(chan);
2682 return 0;
2683 }
2684
2685 /* Stop if we're a zombie or need a soft hangup */
2687 ast_channel_unlock(chan);
2688 return -1;
2689 }
2690
2691 /*
2692 * Mark when incoming channel answered so we can know how
2693 * long the channel has been up.
2694 */
2696
2697 ast_channel_unlock(chan);
2698
2699 switch (ast_channel_state(chan)) {
2700 case AST_STATE_RINGING:
2701 case AST_STATE_RING:
2702 ast_channel_lock(chan);
2703 if (ast_channel_tech(chan)->answer_with_stream_topology) {
2704 res = ast_channel_tech(chan)->answer_with_stream_topology(chan, topology);
2705
2706 } else if (ast_channel_tech(chan)->answer) {
2707 res = ast_channel_tech(chan)->answer(chan);
2708 }
2710 ast_channel_unlock(chan);
2711 break;
2712 case AST_STATE_UP:
2713 /* Fall through */
2714 default:
2715 ast_debug(2, "Skipping answer, since channel state on %s is %s\n", ast_channel_name(chan), ast_state2str(ast_channel_state(chan)));
2716 break;
2717 }
2718
2719 ast_indicate(chan, -1);
2720
2721 return res;
2722}
static int answer(void *data)
Definition chan_pjsip.c:687
const char * ast_state2str(enum ast_channel_state state)
Gives the string form of a given channel state.
Definition channel.c:637
int ast_indicate(struct ast_channel *chan, int condition)
Indicates condition of channel.
Definition channel.c:4332
int(*const answer)(struct ast_channel *chan)
Answer the channel.
Definition channel.h:727
int(*const answer_with_stream_topology)(struct ast_channel *chan, struct ast_stream_topology *topology)
Answer the channel with topology.
Definition channel.h:740

References answer(), ast_channel_tech::answer, ast_channel_tech::answer_with_stream_topology, ast_channel_flags(), ast_channel_lock, ast_channel_name(), ast_channel_unlock, ast_check_hangup(), ast_debug, AST_FLAG_OUTGOING, AST_FLAG_ZOMBIE, ast_indicate(), ast_setstate(), ast_state2str(), AST_STATE_RING, AST_STATE_RINGING, AST_STATE_UP, ast_test_flag, SCOPE_TRACE, and set_channel_answer_time().

Referenced by ast_raw_answer(), and pre_bridge_setup().

◆ ast_read()

struct ast_frame * ast_read ( struct ast_channel chan)

Reads a frame.

Parameters
chanchannel to read a frame from
Returns
Returns a frame, or NULL on error. If it returns NULL, you best just stop reading frames and assume the channel has been disconnected.
Note
This function will filter frames received from the channel so that only frames from the default stream for each media type are returned. All other media frames from other streams will be absorbed internally and a NULL frame returned instead.

Definition at line 4312 of file channel.c.

4313{
4314 return __ast_read(chan, 0, 1);
4315}
static struct ast_frame * __ast_read(struct ast_channel *chan, int dropaudio, int dropnondefault)
Definition channel.c:3575

References __ast_read().

Referenced by __adsi_transmit_messages(), __analog_ss_thread(), __ast_answer(), __ast_play_and_record(), __ast_request_and_dial(), adsi_careful_send(), analog_ss_thread(), ast_recvtext(), AST_TEST_DEFINE(), ast_tonepair(), ast_transfer_protocol(), ast_waitfordigit_full(), async_agi_read_frame(), audiosocket_run(), autoservice_run(), background_detect_exec(), channel_spy(), conf_flush(), conf_run(), dial_exec_full(), dial_trunk(), dictate_exec(), disa_exec(), disable_t38(), do_broadcast(), do_waiting(), echo_exec(), eivr_comm(), generic_fax_exec(), handle_recordfile(), handle_speechrecognize(), isAnsweringMachine(), jack_exec(), measurenoise(), moh_channel_thread(), monitor_dial(), mp3_exec(), read_from_chan(), read_mf_digits(), read_sf_digits(), receive_dtmf_digits(), receivefax_t38_init(), record_exec(), recordthread(), run_agi(), safe_sleep_conditional(), scan_exec(), send_waveform_to_channel(), sendfax_t38_init(), speech_background(), stasis_app_exec(), wait_exec(), wait_for_answer(), wait_for_answer(), wait_for_hangup(), wait_for_signal_or_hangup(), wait_for_winner(), waitforring_exec(), and waitstream_core().

◆ ast_read_generator_actions()

static void ast_read_generator_actions ( struct ast_channel chan,
struct ast_frame f 
)
static

Definition at line 3463 of file channel.c.

3464{
3465 struct ast_generator *generator;
3466 void *gendata;
3467 int res;
3468 int samples;
3469
3470 generator = ast_channel_generator(chan);
3471 if (!generator
3472 || !generator->generate
3473 || f->frametype != AST_FRAME_VOICE
3475 || ast_channel_timingfunc(chan)) {
3476 return;
3477 }
3478
3479 /*
3480 * We must generate frames in phase locked mode since
3481 * we have no internal timer available.
3482 */
3484 float factor;
3486 samples = (int) (((float) f->samples) * factor);
3487 } else {
3488 samples = f->samples;
3489 }
3490
3491 gendata = ast_channel_generatordata(chan);
3492 ast_channel_generatordata_set(chan, NULL); /* reset, to let writes go through */
3493
3494 /*
3495 * This unlock is here based on two assumptions that hold true at
3496 * this point in the code. 1) this function is only called from
3497 * within __ast_read() and 2) all generators call ast_write() in
3498 * their generate callback.
3499 *
3500 * The reason this is added is so that when ast_write is called,
3501 * the lock that occurs there will not recursively lock the
3502 * channel. Doing this will allow deadlock avoidance to work in
3503 * deeper functions.
3504 */
3505 ast_channel_unlock(chan);
3506 res = generator->generate(chan, gendata, f->datalen, samples);
3507 ast_channel_lock(chan);
3508 if (generator == ast_channel_generator(chan)) {
3509 ast_channel_generatordata_set(chan, gendata);
3510 if (res) {
3511 ast_debug(1, "Auto-deactivating generator\n");
3513 }
3514 }
3515}
int(* generate)(struct ast_channel *chan, void *data, int len, int samples)
Definition channel.h:235

References ast_channel_generator(), ast_channel_generatordata(), ast_channel_generatordata_set(), ast_channel_lock, ast_channel_timingfunc(), ast_channel_unlock, ast_channel_writeformat(), ast_deactivate_generator(), ast_debug, ast_format_cmp(), AST_FORMAT_CMP_NOT_EQUAL, ast_format_get_sample_rate(), AST_FRAME_VOICE, ast_frame::datalen, ast_frame_subclass::format, ast_frame::frametype, ast_generator::generate, NULL, ast_frame::samples, and ast_frame::subclass.

Referenced by __ast_read().

◆ ast_read_noaudio()

struct ast_frame * ast_read_noaudio ( struct ast_channel chan)

Reads a frame, returning AST_FRAME_NULL frame if audio.

Parameters
chanchannel to read a frame from
Returns
Returns a frame, or NULL on error. If it returns NULL, you best just stop reading frames and assume the channel has been disconnected.
Note
Audio is replaced with AST_FRAME_NULL to avoid transcode when the resulting audio is not necessary.

Definition at line 4322 of file channel.c.

4323{
4324 return __ast_read(chan, 1, 1);
4325}

References __ast_read().

Referenced by ast_control_tone(), and conf_run().

◆ ast_read_stream()

struct ast_frame * ast_read_stream ( struct ast_channel chan)

Reads a frame, but does not filter to just the default streams.

Parameters
chanchannel to read a frame from
Returns
Returns a frame, or NULL on error. If it returns NULL, you best just stop reading frames and assume the channel has been disconnected.
Note
This function will not perform any filtering and will return media frames from all streams on the channel. To determine which stream a frame originated from the stream_num on it can be examined.

Definition at line 4317 of file channel.c.

4318{
4319 return __ast_read(chan, 0, 0);
4320}

References __ast_read().

Referenced by AST_TEST_DEFINE(), bridge_handle_trip(), read_from_chan(), and stream_echo_perform().

◆ ast_read_stream_noaudio()

struct ast_frame * ast_read_stream_noaudio ( struct ast_channel chan)

Reads a frame, but does not filter to just the default streams, returning AST_FRAME_NULL frame if audio.

Parameters
chanchannel to read a frame from
Returns
Returns a frame, or NULL on error. If it returns NULL, you best just stop reading frames and assume the channel has been disconnected.
Note
This function will not perform any filtering and will return media frames from all streams on the channel. To determine which stream a frame originated from the stream_num on it can be examined.
Audio is replaced with AST_FRAME_NULL to avoid transcode when the resulting audio is not necessary.

Definition at line 4327 of file channel.c.

4328{
4329 return __ast_read(chan, 1, 0);
4330}

References __ast_read().

Referenced by bridge_handle_trip().

◆ ast_readstring()

int ast_readstring ( struct ast_channel c,
char *  s,
int  len,
int  timeout,
int  rtimeout,
char *  enders 
)

Reads multiple digits.

Parameters
cchannel to read from
sstring to read in to. Must be at least the size of your length
lenhow many digits to read (maximum)
timeouthow long to timeout between digits
rtimeouttimeout to wait on the first digit
endersdigits to end the string

Read in a digit string "s", max length "len", maximum timeout between digits "timeout" (-1 for none), terminated by anything in "enders". Give them rtimeout for the first digit.

Returns
Returns 0 on normal return, or 1 on a timeout. In the case of a timeout, any digits that were read before the timeout will still be available in s. RETURNS 2 in full version when ctrlfd is available, NOT 1

Definition at line 6615 of file channel.c.

6616{
6617 return ast_readstring_full(c, s, len, timeout, ftimeout, enders, -1, -1);
6618}
int ast_readstring_full(struct ast_channel *c, char *s, int len, int timeout, int ftimeout, char *enders, int audiofd, int ctrlfd)
Definition channel.c:6620

References ast_readstring_full(), c, and len().

Referenced by __adsi_transmit_messages(), adsi_begin_download(), adsi_get_cpeinfo(), adsi_load_session(), app_exec(), ast_app_getdata_terminator(), dialout(), do_directory(), forward_message(), privacy_exec(), vm_authenticate(), vm_newuser_setup(), and vm_options().

◆ ast_readstring_full()

int ast_readstring_full ( struct ast_channel c,
char *  s,
int  len,
int  timeout,
int  ftimeout,
char *  enders,
int  audiofd,
int  ctrlfd 
)

Definition at line 6620 of file channel.c.

6621{
6622 int pos = 0; /* index in the buffer where we accumulate digits */
6623 int to = ftimeout;
6624
6625 struct ast_silence_generator *silgen = NULL;
6626
6627 /* Stop if we're a zombie or need a soft hangup */
6629 return -1;
6630 if (!len)
6631 return -1;
6632 for (;;) {
6633 int d;
6634 if (ast_channel_stream(c)) {
6635 d = ast_waitstream_full(c, AST_DIGIT_ANY, audiofd, ctrlfd);
6637 if (!silgen && ast_opt_transmit_silence)
6639 usleep(1000);
6640 if (!d)
6641 d = ast_waitfordigit_full(c, to, NULL, audiofd, ctrlfd);
6642 } else {
6643 if (!silgen && ast_opt_transmit_silence)
6645 d = ast_waitfordigit_full(c, to, NULL, audiofd, ctrlfd);
6646 }
6647 if (d < 0) {
6649 return AST_GETDATA_FAILED;
6650 }
6651 if (d == 0) {
6652 s[pos] = '\0';
6654 return AST_GETDATA_TIMEOUT;
6655 }
6656 if (d == 1) {
6657 s[pos] = '\0';
6660 }
6661 if (strchr(enders, d) && (pos == 0)) {
6662 s[pos] = '\0';
6665 }
6666 if (!strchr(enders, d)) {
6667 s[pos++] = d;
6668 }
6669 if (strchr(enders, d) || (pos >= len)) {
6670 s[pos] = '\0';
6672 return AST_GETDATA_COMPLETE;
6673 }
6674 to = timeout;
6675 }
6676 /* Never reached */
6677 return 0;
6678}
struct ast_silence_generator * ast_channel_start_silence_generator(struct ast_channel *chan)
Starts a silence generator on the given channel.
Definition channel.c:8270
void ast_channel_stop_silence_generator(struct ast_channel *chan, struct ast_silence_generator *state)
Stops a previously-started silence generator on the given channel.
Definition channel.c:8316
int ast_waitfordigit_full(struct ast_channel *c, int timeout_ms, const char *breakon, int audiofd, int cmdfd)
Wait for a digit Same as ast_waitfordigit() with audio fd for outputting read audio and ctrlfd to mon...
Definition channel.c:3278
int ast_waitstream_full(struct ast_channel *c, const char *breakon, int audiofd, int monfd)
Definition file.c:1883
int ast_stopstream(struct ast_channel *c)
Stops a stream.
Definition file.c:223
#define AST_DIGIT_ANY
Definition file.h:48
@ AST_GETDATA_FAILED
@ AST_GETDATA_INTERRUPTED
@ AST_GETDATA_COMPLETE
@ AST_GETDATA_TIMEOUT
@ AST_GETDATA_EMPTY_END_TERMINATED
#define ast_opt_transmit_silence
Definition options.h:134
static struct test_val d

References ast_channel_flags(), ast_channel_start_silence_generator(), ast_channel_stop_silence_generator(), ast_channel_stream(), ast_check_hangup(), AST_DIGIT_ANY, AST_FLAG_ZOMBIE, AST_GETDATA_COMPLETE, AST_GETDATA_EMPTY_END_TERMINATED, AST_GETDATA_FAILED, AST_GETDATA_INTERRUPTED, AST_GETDATA_TIMEOUT, ast_opt_transmit_silence, ast_stopstream(), ast_test_flag, ast_waitfordigit_full(), ast_waitstream_full(), c, d, len(), and NULL.

Referenced by ast_app_getdata_full(), and ast_readstring().

◆ ast_recvchar()

int ast_recvchar ( struct ast_channel chan,
int  timeout 
)

Receives a text character from a channel.

Parameters
chanchannel to act upon
timeouttimeout in milliseconds (0 for infinite wait)

Read a char of text from a channel

Returns
0 on success, -1 on failure

Definition at line 4763 of file channel.c.

4764{
4765 int c;
4766 char *buf = ast_recvtext(chan, timeout);
4767 if (buf == NULL)
4768 return -1; /* error or timeout */
4769 c = *(unsigned char *)buf;
4770 ast_free(buf);
4771 return c;
4772}
char * ast_recvtext(struct ast_channel *chan, int timeout)
Receives a text string from a channel Read a string of text from a channel.
Definition channel.c:4774

References ast_free, ast_recvtext(), buf, c, and NULL.

Referenced by handle_recvchar().

◆ ast_recvtext()

char * ast_recvtext ( struct ast_channel chan,
int  timeout 
)

Receives a text string from a channel Read a string of text from a channel.

Parameters
chanchannel to act upon
timeouttimeout in milliseconds (0 for infinite wait)
Returns
the received text, or NULL to signify failure.

Definition at line 4774 of file channel.c.

4775{
4776 int res;
4777 char *buf = NULL;
4778 struct timeval start = ast_tvnow();
4779 int ms;
4780
4781 while ((ms = ast_remaining_ms(start, timeout))) {
4782 struct ast_frame *f;
4783
4784 if (ast_check_hangup(chan)) {
4785 break;
4786 }
4787 res = ast_waitfor(chan, ms);
4788 if (res <= 0) {/* timeout or error */
4789 break;
4790 }
4791 f = ast_read(chan);
4792 if (f == NULL) {
4793 break; /* no frame */
4794 }
4796 ast_frfree(f);
4797 break;
4798 } else if (f->frametype == AST_FRAME_TEXT) { /* what we want */
4799 buf = ast_strndup((char *) f->data.ptr, f->datalen); /* dup and break */
4800 ast_frfree(f);
4801 break;
4802 }
4803 ast_frfree(f);
4804 }
4805 return buf;
4806}
#define ast_strndup(str, len)
A wrapper for strndup()
Definition astmm.h:256

References ast_check_hangup(), AST_CONTROL_HANGUP, AST_FRAME_CONTROL, AST_FRAME_TEXT, ast_frfree, ast_read(), ast_remaining_ms(), ast_strndup, ast_tvnow(), ast_waitfor(), buf, ast_frame::data, ast_frame::datalen, ast_frame::frametype, ast_frame_subclass::integer, NULL, ast_frame::ptr, and ast_frame::subclass.

Referenced by ast_recvchar(), handle_recvtext(), and recvtext_exec().

◆ ast_redirecting_build_data()

int ast_redirecting_build_data ( unsigned char *  data,
size_t  datalen,
const struct ast_party_redirecting redirecting,
const struct ast_set_party_redirecting update 
)

Build the redirecting id data frame.

Since
1.8
Parameters
dataBuffer to fill with the frame data
datalenSize of the buffer to fill
redirectingRedirecting id information
updateWhat redirecting information to build. NULL if all.
Return values
-1if error
Amountof data buffer used

Definition at line 9374 of file channel.c.

9375{
9376 int32_t value;
9377 size_t pos = 0;
9378 int res;
9379
9380 static const struct ast_party_id_ies orig_ies = {
9382 .name.char_set = AST_REDIRECTING_ORIG_NAME_CHAR_SET,
9383 .name.presentation = AST_REDIRECTING_ORIG_NAME_PRESENTATION,
9384 .name.valid = AST_REDIRECTING_ORIG_NAME_VALID,
9385
9386 .number.str = AST_REDIRECTING_ORIG_NUMBER,
9387 .number.plan = AST_REDIRECTING_ORIG_NUMBER_PLAN,
9388 .number.presentation = AST_REDIRECTING_ORIG_NUMBER_PRESENTATION,
9389 .number.valid = AST_REDIRECTING_ORIG_NUMBER_VALID,
9390
9391 .subaddress.str = AST_REDIRECTING_ORIG_SUBADDRESS,
9392 .subaddress.type = AST_REDIRECTING_ORIG_SUBADDRESS_TYPE,
9393 .subaddress.odd_even_indicator = AST_REDIRECTING_ORIG_SUBADDRESS_ODD_EVEN,
9394 .subaddress.valid = AST_REDIRECTING_ORIG_SUBADDRESS_VALID,
9395
9397 .combined_presentation = 0,/* Not sent. */
9398 };
9399 static const struct ast_party_id_ies from_ies = {
9401 .name.char_set = AST_REDIRECTING_FROM_NAME_CHAR_SET,
9402 .name.presentation = AST_REDIRECTING_FROM_NAME_PRESENTATION,
9403 .name.valid = AST_REDIRECTING_FROM_NAME_VALID,
9404
9405 .number.str = AST_REDIRECTING_FROM_NUMBER,
9406 .number.plan = AST_REDIRECTING_FROM_NUMBER_PLAN,
9407 .number.presentation = AST_REDIRECTING_FROM_NUMBER_PRESENTATION,
9408 .number.valid = AST_REDIRECTING_FROM_NUMBER_VALID,
9409
9410 .subaddress.str = AST_REDIRECTING_FROM_SUBADDRESS,
9411 .subaddress.type = AST_REDIRECTING_FROM_SUBADDRESS_TYPE,
9412 .subaddress.odd_even_indicator = AST_REDIRECTING_FROM_SUBADDRESS_ODD_EVEN,
9413 .subaddress.valid = AST_REDIRECTING_FROM_SUBADDRESS_VALID,
9414
9416 .combined_presentation = AST_REDIRECTING_FROM_ID_PRESENTATION,
9417 };
9418 static const struct ast_party_id_ies to_ies = {
9420 .name.char_set = AST_REDIRECTING_TO_NAME_CHAR_SET,
9421 .name.presentation = AST_REDIRECTING_TO_NAME_PRESENTATION,
9422 .name.valid = AST_REDIRECTING_TO_NAME_VALID,
9423
9424 .number.str = AST_REDIRECTING_TO_NUMBER,
9425 .number.plan = AST_REDIRECTING_TO_NUMBER_PLAN,
9426 .number.presentation = AST_REDIRECTING_TO_NUMBER_PRESENTATION,
9427 .number.valid = AST_REDIRECTING_TO_NUMBER_VALID,
9428
9429 .subaddress.str = AST_REDIRECTING_TO_SUBADDRESS,
9430 .subaddress.type = AST_REDIRECTING_TO_SUBADDRESS_TYPE,
9431 .subaddress.odd_even_indicator = AST_REDIRECTING_TO_SUBADDRESS_ODD_EVEN,
9432 .subaddress.valid = AST_REDIRECTING_TO_SUBADDRESS_VALID,
9433
9435 .combined_presentation = AST_REDIRECTING_TO_ID_PRESENTATION,
9436 };
9437 static const struct ast_party_id_ies priv_orig_ies = {
9442
9445 .number.presentation = AST_REDIRECTING_PRIV_ORIG_NUMBER_PRESENTATION,
9447
9448 .subaddress.str = AST_REDIRECTING_PRIV_ORIG_SUBADDRESS,
9450 .subaddress.odd_even_indicator = AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_ODD_EVEN,
9452
9454 .combined_presentation = 0,/* Not sent. */
9455 };
9456 static const struct ast_party_id_ies priv_from_ies = {
9461
9464 .number.presentation = AST_REDIRECTING_PRIV_FROM_NUMBER_PRESENTATION,
9466
9467 .subaddress.str = AST_REDIRECTING_PRIV_FROM_SUBADDRESS,
9469 .subaddress.odd_even_indicator = AST_REDIRECTING_PRIV_FROM_SUBADDRESS_ODD_EVEN,
9471
9473 .combined_presentation = 0,/* Not sent. */
9474 };
9475 static const struct ast_party_id_ies priv_to_ies = {
9478 .name.presentation = AST_REDIRECTING_PRIV_TO_NAME_PRESENTATION,
9480
9481 .number.str = AST_REDIRECTING_PRIV_TO_NUMBER,
9483 .number.presentation = AST_REDIRECTING_PRIV_TO_NUMBER_PRESENTATION,
9485
9486 .subaddress.str = AST_REDIRECTING_PRIV_TO_SUBADDRESS,
9487 .subaddress.type = AST_REDIRECTING_PRIV_TO_SUBADDRESS_TYPE,
9488 .subaddress.odd_even_indicator = AST_REDIRECTING_PRIV_TO_SUBADDRESS_ODD_EVEN,
9489 .subaddress.valid = AST_REDIRECTING_PRIV_TO_SUBADDRESS_VALID,
9490
9492 .combined_presentation = 0,/* Not sent. */
9493 };
9494 static const struct ast_party_redirecting_reason_ies reason_ies = {
9497 };
9498
9499 static const struct ast_party_redirecting_reason_ies orig_reason_ies = {
9502 };
9503
9504 /* Redirecting frame version */
9505 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
9506 ast_log(LOG_WARNING, "No space left for redirecting frame version\n");
9507 return -1;
9508 }
9509 data[pos++] = AST_REDIRECTING_VERSION;
9510 data[pos++] = 1;
9511 data[pos++] = 2;/* Version 1 did not have a version ie */
9512
9513 res = party_id_build_data(data + pos, datalen - pos, &redirecting->orig,
9514 "redirecting-orig", &orig_ies, update ? &update->orig : NULL);
9515 if (res < 0) {
9516 return -1;
9517 }
9518 pos += res;
9519
9520 res = party_id_build_data(data + pos, datalen - pos, &redirecting->from,
9521 "redirecting-from", &from_ies, update ? &update->from : NULL);
9522 if (res < 0) {
9523 return -1;
9524 }
9525 pos += res;
9526
9527 res = party_id_build_data(data + pos, datalen - pos, &redirecting->to,
9528 "redirecting-to", &to_ies, update ? &update->to : NULL);
9529 if (res < 0) {
9530 return -1;
9531 }
9532 pos += res;
9533
9534 res = party_id_build_data(data + pos, datalen - pos, &redirecting->priv_orig,
9535 "redirecting-priv-orig", &priv_orig_ies, update ? &update->priv_orig : NULL);
9536 if (res < 0) {
9537 return -1;
9538 }
9539 pos += res;
9540
9541 res = party_id_build_data(data + pos, datalen - pos, &redirecting->priv_from,
9542 "redirecting-priv-from", &priv_from_ies, update ? &update->priv_from : NULL);
9543 if (res < 0) {
9544 return -1;
9545 }
9546 pos += res;
9547
9548 res = party_id_build_data(data + pos, datalen - pos, &redirecting->priv_to,
9549 "redirecting-priv-to", &priv_to_ies, update ? &update->priv_to : NULL);
9550 if (res < 0) {
9551 return -1;
9552 }
9553 pos += res;
9554
9555 /* Redirecting reason */
9556 res = redirecting_reason_build_data(data + pos, datalen - pos, &redirecting->reason,
9557 "redirecting-reason", &reason_ies);
9558 if (res < 0) {
9559 return -1;
9560 }
9561 pos += res;
9562
9563 /* Redirecting original reason */
9564 res = redirecting_reason_build_data(data + pos, datalen - pos, &redirecting->orig_reason,
9565 "redirecting-orig-reason", &orig_reason_ies);
9566 if (res < 0) {
9567 return -1;
9568 }
9569 pos += res;
9570
9571 /* Redirecting count */
9572 if (datalen < pos + (sizeof(data[0]) * 2) + sizeof(value)) {
9573 ast_log(LOG_WARNING, "No space left for redirecting count\n");
9574 return -1;
9575 }
9576 data[pos++] = AST_REDIRECTING_COUNT;
9577 data[pos++] = sizeof(value);
9578 value = htonl(redirecting->count);
9579 memcpy(data + pos, &value, sizeof(value));
9580 pos += sizeof(value);
9581
9582 return pos;
9583}
static int redirecting_reason_build_data(unsigned char *data, size_t datalen, const struct ast_party_redirecting_reason *reason, const char *label, const struct ast_party_redirecting_reason_ies *ies)
Definition channel.c:9341

References ast_log, AST_REDIRECTING_COUNT, AST_REDIRECTING_FROM_ID_PRESENTATION, AST_REDIRECTING_FROM_NAME, AST_REDIRECTING_FROM_NAME_CHAR_SET, AST_REDIRECTING_FROM_NAME_PRESENTATION, AST_REDIRECTING_FROM_NAME_VALID, AST_REDIRECTING_FROM_NUMBER, AST_REDIRECTING_FROM_NUMBER_PLAN, AST_REDIRECTING_FROM_NUMBER_PRESENTATION, AST_REDIRECTING_FROM_NUMBER_VALID, AST_REDIRECTING_FROM_SUBADDRESS, AST_REDIRECTING_FROM_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_FROM_SUBADDRESS_TYPE, AST_REDIRECTING_FROM_SUBADDRESS_VALID, AST_REDIRECTING_FROM_TAG, AST_REDIRECTING_ORIG_NAME, AST_REDIRECTING_ORIG_NAME_CHAR_SET, AST_REDIRECTING_ORIG_NAME_PRESENTATION, AST_REDIRECTING_ORIG_NAME_VALID, AST_REDIRECTING_ORIG_NUMBER, AST_REDIRECTING_ORIG_NUMBER_PLAN, AST_REDIRECTING_ORIG_NUMBER_PRESENTATION, AST_REDIRECTING_ORIG_NUMBER_VALID, AST_REDIRECTING_ORIG_REASON_CODE, AST_REDIRECTING_ORIG_REASON_STR, AST_REDIRECTING_ORIG_SUBADDRESS, AST_REDIRECTING_ORIG_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_ORIG_SUBADDRESS_TYPE, AST_REDIRECTING_ORIG_SUBADDRESS_VALID, AST_REDIRECTING_ORIG_TAG, AST_REDIRECTING_PRIV_FROM_NAME, AST_REDIRECTING_PRIV_FROM_NAME_CHAR_SET, AST_REDIRECTING_PRIV_FROM_NAME_PRESENTATION, AST_REDIRECTING_PRIV_FROM_NAME_VALID, AST_REDIRECTING_PRIV_FROM_NUMBER, AST_REDIRECTING_PRIV_FROM_NUMBER_PLAN, AST_REDIRECTING_PRIV_FROM_NUMBER_PRESENTATION, AST_REDIRECTING_PRIV_FROM_NUMBER_VALID, AST_REDIRECTING_PRIV_FROM_SUBADDRESS, AST_REDIRECTING_PRIV_FROM_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_PRIV_FROM_SUBADDRESS_TYPE, AST_REDIRECTING_PRIV_FROM_SUBADDRESS_VALID, AST_REDIRECTING_PRIV_FROM_TAG, AST_REDIRECTING_PRIV_ORIG_NAME, AST_REDIRECTING_PRIV_ORIG_NAME_CHAR_SET, AST_REDIRECTING_PRIV_ORIG_NAME_PRESENTATION, AST_REDIRECTING_PRIV_ORIG_NAME_VALID, AST_REDIRECTING_PRIV_ORIG_NUMBER, AST_REDIRECTING_PRIV_ORIG_NUMBER_PLAN, AST_REDIRECTING_PRIV_ORIG_NUMBER_PRESENTATION, AST_REDIRECTING_PRIV_ORIG_NUMBER_VALID, AST_REDIRECTING_PRIV_ORIG_SUBADDRESS, AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_TYPE, AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_VALID, AST_REDIRECTING_PRIV_ORIG_TAG, AST_REDIRECTING_PRIV_TO_NAME, AST_REDIRECTING_PRIV_TO_NAME_CHAR_SET, AST_REDIRECTING_PRIV_TO_NAME_PRESENTATION, AST_REDIRECTING_PRIV_TO_NAME_VALID, AST_REDIRECTING_PRIV_TO_NUMBER, AST_REDIRECTING_PRIV_TO_NUMBER_PLAN, AST_REDIRECTING_PRIV_TO_NUMBER_PRESENTATION, AST_REDIRECTING_PRIV_TO_NUMBER_VALID, AST_REDIRECTING_PRIV_TO_SUBADDRESS, AST_REDIRECTING_PRIV_TO_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_PRIV_TO_SUBADDRESS_TYPE, AST_REDIRECTING_PRIV_TO_SUBADDRESS_VALID, AST_REDIRECTING_PRIV_TO_TAG, AST_REDIRECTING_REASON_CODE, AST_REDIRECTING_REASON_STR, AST_REDIRECTING_TO_ID_PRESENTATION, AST_REDIRECTING_TO_NAME, AST_REDIRECTING_TO_NAME_CHAR_SET, AST_REDIRECTING_TO_NAME_PRESENTATION, AST_REDIRECTING_TO_NAME_VALID, AST_REDIRECTING_TO_NUMBER, AST_REDIRECTING_TO_NUMBER_PLAN, AST_REDIRECTING_TO_NUMBER_PRESENTATION, AST_REDIRECTING_TO_NUMBER_VALID, AST_REDIRECTING_TO_SUBADDRESS, AST_REDIRECTING_TO_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_TO_SUBADDRESS_TYPE, AST_REDIRECTING_TO_SUBADDRESS_VALID, AST_REDIRECTING_TO_TAG, AST_REDIRECTING_VERSION, ast_party_redirecting_reason_ies::code, ast_party_redirecting::count, ast_party_redirecting::from, LOG_WARNING, ast_party_id_ies::name, NULL, ast_party_redirecting::orig, ast_party_redirecting::orig_reason, party_id_build_data(), ast_party_redirecting::priv_from, ast_party_redirecting::priv_orig, ast_party_redirecting::priv_to, ast_party_redirecting::reason, redirecting_reason_build_data(), ast_party_name_ies::str, ast_party_redirecting::to, update(), and value.

Referenced by ast_channel_queue_redirecting_update(), ast_channel_update_redirecting(), and unreal_colp_redirect_indicate().

◆ ast_redirecting_parse_data()

int ast_redirecting_parse_data ( const unsigned char *  data,
size_t  datalen,
struct ast_party_redirecting redirecting 
)

Parse redirecting indication frame data.

Since
1.8
Parameters
dataBuffer with the frame data to parse
datalenSize of the buffer
redirectingExtracted redirecting id information
Return values
0on success.
-1on error.
Note
The filled in id structure needs to be initialized by ast_party_redirecting_set_init() before calling.
The filled in id structure needs to be destroyed by ast_party_redirecting_free() when it is no longer needed.

Definition at line 9585 of file channel.c.

9586{
9587 size_t pos;
9588 unsigned char ie_len;
9589 unsigned char ie_id;
9590 int32_t value;
9591 int frame_version = 1;
9592 int from_combined_presentation = 0;
9593 int got_from_combined_presentation = 0;/* TRUE if got a combined name and number presentation value. */
9594 int to_combined_presentation = 0;
9595 int got_to_combined_presentation = 0;/* TRUE if got a combined name and number presentation value. */
9596
9597 for (pos = 0; pos < datalen; pos += ie_len) {
9598 if (datalen < pos + sizeof(ie_id) + sizeof(ie_len)) {
9599 ast_log(LOG_WARNING, "Invalid redirecting update\n");
9600 return -1;
9601 }
9602 ie_id = data[pos++];
9603 ie_len = data[pos++];
9604 if (datalen < pos + ie_len) {
9605 ast_log(LOG_WARNING, "Invalid redirecting update\n");
9606 return -1;
9607 }
9608
9609 switch (ie_id) {
9610/* Redirecting frame version */
9612 if (ie_len != 1) {
9613 ast_log(LOG_WARNING, "Invalid redirecting frame version (%u)\n",
9614 (unsigned) ie_len);
9615 break;
9616 }
9617 frame_version = data[pos];
9618 break;
9619/* Redirecting-orig party id name */
9621 ast_free(redirecting->orig.name.str);
9622 redirecting->orig.name.str = ast_malloc(ie_len + 1);
9623 if (redirecting->orig.name.str) {
9624 memcpy(redirecting->orig.name.str, data + pos, ie_len);
9625 redirecting->orig.name.str[ie_len] = 0;
9626 }
9627 break;
9629 if (ie_len != 1) {
9630 ast_log(LOG_WARNING, "Invalid redirecting-orig name char set (%u)\n",
9631 (unsigned) ie_len);
9632 break;
9633 }
9634 redirecting->orig.name.char_set = data[pos];
9635 break;
9637 if (ie_len != 1) {
9638 ast_log(LOG_WARNING, "Invalid redirecting-orig name presentation (%u)\n",
9639 (unsigned) ie_len);
9640 break;
9641 }
9642 redirecting->orig.name.presentation = data[pos];
9643 break;
9645 if (ie_len != 1) {
9646 ast_log(LOG_WARNING, "Invalid redirecting-orig name valid (%u)\n",
9647 (unsigned) ie_len);
9648 break;
9649 }
9650 redirecting->orig.name.valid = data[pos];
9651 break;
9652/* Redirecting-orig party id number */
9654 ast_free(redirecting->orig.number.str);
9655 redirecting->orig.number.str = ast_malloc(ie_len + 1);
9656 if (redirecting->orig.number.str) {
9657 memcpy(redirecting->orig.number.str, data + pos, ie_len);
9658 redirecting->orig.number.str[ie_len] = 0;
9659 }
9660 break;
9662 if (ie_len != 1) {
9663 ast_log(LOG_WARNING, "Invalid redirecting-orig numbering plan (%u)\n",
9664 (unsigned) ie_len);
9665 break;
9666 }
9667 redirecting->orig.number.plan = data[pos];
9668 break;
9670 if (ie_len != 1) {
9671 ast_log(LOG_WARNING, "Invalid redirecting-orig number presentation (%u)\n",
9672 (unsigned) ie_len);
9673 break;
9674 }
9675 redirecting->orig.number.presentation = data[pos];
9676 break;
9678 if (ie_len != 1) {
9679 ast_log(LOG_WARNING, "Invalid redirecting-orig number valid (%u)\n",
9680 (unsigned) ie_len);
9681 break;
9682 }
9683 redirecting->orig.number.valid = data[pos];
9684 break;
9685/* Redirecting-orig party id subaddress */
9687 ast_free(redirecting->orig.subaddress.str);
9688 redirecting->orig.subaddress.str = ast_malloc(ie_len + 1);
9689 if (redirecting->orig.subaddress.str) {
9690 memcpy(redirecting->orig.subaddress.str, data + pos, ie_len);
9691 redirecting->orig.subaddress.str[ie_len] = 0;
9692 }
9693 break;
9695 if (ie_len != 1) {
9696 ast_log(LOG_WARNING, "Invalid redirecting-orig type of subaddress (%u)\n",
9697 (unsigned) ie_len);
9698 break;
9699 }
9700 redirecting->orig.subaddress.type = data[pos];
9701 break;
9703 if (ie_len != 1) {
9705 "Invalid redirecting-orig subaddress odd-even indicator (%u)\n",
9706 (unsigned) ie_len);
9707 break;
9708 }
9709 redirecting->orig.subaddress.odd_even_indicator = data[pos];
9710 break;
9712 if (ie_len != 1) {
9713 ast_log(LOG_WARNING, "Invalid redirecting-orig subaddress valid (%u)\n",
9714 (unsigned) ie_len);
9715 break;
9716 }
9717 redirecting->orig.subaddress.valid = data[pos];
9718 break;
9719/* Redirecting-orig party id tag */
9721 ast_free(redirecting->orig.tag);
9722 redirecting->orig.tag = ast_malloc(ie_len + 1);
9723 if (redirecting->orig.tag) {
9724 memcpy(redirecting->orig.tag, data + pos, ie_len);
9725 redirecting->orig.tag[ie_len] = 0;
9726 }
9727 break;
9728/* Redirecting-from party id name */
9730 ast_free(redirecting->from.name.str);
9731 redirecting->from.name.str = ast_malloc(ie_len + 1);
9732 if (redirecting->from.name.str) {
9733 memcpy(redirecting->from.name.str, data + pos, ie_len);
9734 redirecting->from.name.str[ie_len] = 0;
9735 }
9736 break;
9738 if (ie_len != 1) {
9739 ast_log(LOG_WARNING, "Invalid redirecting-from name char set (%u)\n",
9740 (unsigned) ie_len);
9741 break;
9742 }
9743 redirecting->from.name.char_set = data[pos];
9744 break;
9746 if (ie_len != 1) {
9747 ast_log(LOG_WARNING, "Invalid redirecting-from name presentation (%u)\n",
9748 (unsigned) ie_len);
9749 break;
9750 }
9751 redirecting->from.name.presentation = data[pos];
9752 break;
9754 if (ie_len != 1) {
9755 ast_log(LOG_WARNING, "Invalid redirecting-from name valid (%u)\n",
9756 (unsigned) ie_len);
9757 break;
9758 }
9759 redirecting->from.name.valid = data[pos];
9760 break;
9761/* Redirecting-from party id number */
9763 ast_free(redirecting->from.number.str);
9764 redirecting->from.number.str = ast_malloc(ie_len + 1);
9765 if (redirecting->from.number.str) {
9766 memcpy(redirecting->from.number.str, data + pos, ie_len);
9767 redirecting->from.number.str[ie_len] = 0;
9768 }
9769 break;
9771 if (ie_len != 1) {
9772 ast_log(LOG_WARNING, "Invalid redirecting-from numbering plan (%u)\n",
9773 (unsigned) ie_len);
9774 break;
9775 }
9776 redirecting->from.number.plan = data[pos];
9777 break;
9779 if (ie_len != 1) {
9780 ast_log(LOG_WARNING, "Invalid redirecting-from number presentation (%u)\n",
9781 (unsigned) ie_len);
9782 break;
9783 }
9784 redirecting->from.number.presentation = data[pos];
9785 break;
9787 if (ie_len != 1) {
9788 ast_log(LOG_WARNING, "Invalid redirecting-from number valid (%u)\n",
9789 (unsigned) ie_len);
9790 break;
9791 }
9792 redirecting->from.number.valid = data[pos];
9793 break;
9794/* Redirecting-from party id combined presentation */
9796 if (ie_len != 1) {
9797 ast_log(LOG_WARNING, "Invalid redirecting-from combined presentation (%u)\n",
9798 (unsigned) ie_len);
9799 break;
9800 }
9801 from_combined_presentation = data[pos];
9802 got_from_combined_presentation = 1;
9803 break;
9804/* Redirecting-from party id subaddress */
9806 ast_free(redirecting->from.subaddress.str);
9807 redirecting->from.subaddress.str = ast_malloc(ie_len + 1);
9808 if (redirecting->from.subaddress.str) {
9809 memcpy(redirecting->from.subaddress.str, data + pos, ie_len);
9810 redirecting->from.subaddress.str[ie_len] = 0;
9811 }
9812 break;
9814 if (ie_len != 1) {
9815 ast_log(LOG_WARNING, "Invalid redirecting-from type of subaddress (%u)\n",
9816 (unsigned) ie_len);
9817 break;
9818 }
9819 redirecting->from.subaddress.type = data[pos];
9820 break;
9822 if (ie_len != 1) {
9824 "Invalid redirecting-from subaddress odd-even indicator (%u)\n",
9825 (unsigned) ie_len);
9826 break;
9827 }
9828 redirecting->from.subaddress.odd_even_indicator = data[pos];
9829 break;
9831 if (ie_len != 1) {
9832 ast_log(LOG_WARNING, "Invalid redirecting-from subaddress valid (%u)\n",
9833 (unsigned) ie_len);
9834 break;
9835 }
9836 redirecting->from.subaddress.valid = data[pos];
9837 break;
9838/* Redirecting-from party id tag */
9840 ast_free(redirecting->from.tag);
9841 redirecting->from.tag = ast_malloc(ie_len + 1);
9842 if (redirecting->from.tag) {
9843 memcpy(redirecting->from.tag, data + pos, ie_len);
9844 redirecting->from.tag[ie_len] = 0;
9845 }
9846 break;
9847/* Redirecting-to party id name */
9849 ast_free(redirecting->to.name.str);
9850 redirecting->to.name.str = ast_malloc(ie_len + 1);
9851 if (redirecting->to.name.str) {
9852 memcpy(redirecting->to.name.str, data + pos, ie_len);
9853 redirecting->to.name.str[ie_len] = 0;
9854 }
9855 break;
9857 if (ie_len != 1) {
9858 ast_log(LOG_WARNING, "Invalid redirecting-to name char set (%u)\n",
9859 (unsigned) ie_len);
9860 break;
9861 }
9862 redirecting->to.name.char_set = data[pos];
9863 break;
9865 if (ie_len != 1) {
9866 ast_log(LOG_WARNING, "Invalid redirecting-to name presentation (%u)\n",
9867 (unsigned) ie_len);
9868 break;
9869 }
9870 redirecting->to.name.presentation = data[pos];
9871 break;
9873 if (ie_len != 1) {
9874 ast_log(LOG_WARNING, "Invalid redirecting-to name valid (%u)\n",
9875 (unsigned) ie_len);
9876 break;
9877 }
9878 redirecting->to.name.valid = data[pos];
9879 break;
9880/* Redirecting-to party id number */
9882 ast_free(redirecting->to.number.str);
9883 redirecting->to.number.str = ast_malloc(ie_len + 1);
9884 if (redirecting->to.number.str) {
9885 memcpy(redirecting->to.number.str, data + pos, ie_len);
9886 redirecting->to.number.str[ie_len] = 0;
9887 }
9888 break;
9890 if (ie_len != 1) {
9891 ast_log(LOG_WARNING, "Invalid redirecting-to numbering plan (%u)\n",
9892 (unsigned) ie_len);
9893 break;
9894 }
9895 redirecting->to.number.plan = data[pos];
9896 break;
9898 if (ie_len != 1) {
9899 ast_log(LOG_WARNING, "Invalid redirecting-to number presentation (%u)\n",
9900 (unsigned) ie_len);
9901 break;
9902 }
9903 redirecting->to.number.presentation = data[pos];
9904 break;
9906 if (ie_len != 1) {
9907 ast_log(LOG_WARNING, "Invalid redirecting-to number valid (%u)\n",
9908 (unsigned) ie_len);
9909 break;
9910 }
9911 redirecting->to.number.valid = data[pos];
9912 break;
9913/* Redirecting-to party id combined presentation */
9915 if (ie_len != 1) {
9916 ast_log(LOG_WARNING, "Invalid redirecting-to combined presentation (%u)\n",
9917 (unsigned) ie_len);
9918 break;
9919 }
9920 to_combined_presentation = data[pos];
9921 got_to_combined_presentation = 1;
9922 break;
9923/* Redirecting-to party id subaddress */
9925 ast_free(redirecting->to.subaddress.str);
9926 redirecting->to.subaddress.str = ast_malloc(ie_len + 1);
9927 if (redirecting->to.subaddress.str) {
9928 memcpy(redirecting->to.subaddress.str, data + pos, ie_len);
9929 redirecting->to.subaddress.str[ie_len] = 0;
9930 }
9931 break;
9933 if (ie_len != 1) {
9934 ast_log(LOG_WARNING, "Invalid redirecting-to type of subaddress (%u)\n",
9935 (unsigned) ie_len);
9936 break;
9937 }
9938 redirecting->to.subaddress.type = data[pos];
9939 break;
9941 if (ie_len != 1) {
9943 "Invalid redirecting-to subaddress odd-even indicator (%u)\n",
9944 (unsigned) ie_len);
9945 break;
9946 }
9947 redirecting->to.subaddress.odd_even_indicator = data[pos];
9948 break;
9950 if (ie_len != 1) {
9951 ast_log(LOG_WARNING, "Invalid redirecting-to subaddress valid (%u)\n",
9952 (unsigned) ie_len);
9953 break;
9954 }
9955 redirecting->to.subaddress.valid = data[pos];
9956 break;
9957/* Redirecting-to party id tag */
9959 ast_free(redirecting->to.tag);
9960 redirecting->to.tag = ast_malloc(ie_len + 1);
9961 if (redirecting->to.tag) {
9962 memcpy(redirecting->to.tag, data + pos, ie_len);
9963 redirecting->to.tag[ie_len] = 0;
9964 }
9965 break;
9966/* Private redirecting-orig party id name */
9968 ast_free(redirecting->priv_orig.name.str);
9969 redirecting->priv_orig.name.str = ast_malloc(ie_len + 1);
9970 if (redirecting->priv_orig.name.str) {
9971 memcpy(redirecting->priv_orig.name.str, data + pos, ie_len);
9972 redirecting->priv_orig.name.str[ie_len] = 0;
9973 }
9974 break;
9976 if (ie_len != 1) {
9977 ast_log(LOG_WARNING, "Invalid private redirecting-orig name char set (%u)\n",
9978 (unsigned) ie_len);
9979 break;
9980 }
9981 redirecting->priv_orig.name.char_set = data[pos];
9982 break;
9984 if (ie_len != 1) {
9985 ast_log(LOG_WARNING, "Invalid private redirecting-orig name presentation (%u)\n",
9986 (unsigned) ie_len);
9987 break;
9988 }
9989 redirecting->priv_orig.name.presentation = data[pos];
9990 break;
9992 if (ie_len != 1) {
9993 ast_log(LOG_WARNING, "Invalid private redirecting-orig name valid (%u)\n",
9994 (unsigned) ie_len);
9995 break;
9996 }
9997 redirecting->priv_orig.name.valid = data[pos];
9998 break;
9999/* Private redirecting-orig party id number */
10001 ast_free(redirecting->priv_orig.number.str);
10002 redirecting->priv_orig.number.str = ast_malloc(ie_len + 1);
10003 if (redirecting->priv_orig.number.str) {
10004 memcpy(redirecting->priv_orig.number.str, data + pos, ie_len);
10005 redirecting->priv_orig.number.str[ie_len] = 0;
10006 }
10007 break;
10009 if (ie_len != 1) {
10010 ast_log(LOG_WARNING, "Invalid private redirecting-orig numbering plan (%u)\n",
10011 (unsigned) ie_len);
10012 break;
10013 }
10014 redirecting->priv_orig.number.plan = data[pos];
10015 break;
10017 if (ie_len != 1) {
10018 ast_log(LOG_WARNING, "Invalid private redirecting-orig number presentation (%u)\n",
10019 (unsigned) ie_len);
10020 break;
10021 }
10022 redirecting->priv_orig.number.presentation = data[pos];
10023 break;
10025 if (ie_len != 1) {
10026 ast_log(LOG_WARNING, "Invalid private redirecting-orig number valid (%u)\n",
10027 (unsigned) ie_len);
10028 break;
10029 }
10030 redirecting->priv_orig.number.valid = data[pos];
10031 break;
10032/* Private redirecting-orig party id subaddress */
10034 ast_free(redirecting->priv_orig.subaddress.str);
10035 redirecting->priv_orig.subaddress.str = ast_malloc(ie_len + 1);
10036 if (redirecting->priv_orig.subaddress.str) {
10037 memcpy(redirecting->priv_orig.subaddress.str, data + pos, ie_len);
10038 redirecting->priv_orig.subaddress.str[ie_len] = 0;
10039 }
10040 break;
10042 if (ie_len != 1) {
10043 ast_log(LOG_WARNING, "Invalid private redirecting-orig type of subaddress (%u)\n",
10044 (unsigned) ie_len);
10045 break;
10046 }
10047 redirecting->priv_orig.subaddress.type = data[pos];
10048 break;
10050 if (ie_len != 1) {
10052 "Invalid private redirecting-orig subaddress odd-even indicator (%u)\n",
10053 (unsigned) ie_len);
10054 break;
10055 }
10056 redirecting->priv_orig.subaddress.odd_even_indicator = data[pos];
10057 break;
10059 if (ie_len != 1) {
10060 ast_log(LOG_WARNING, "Invalid private redirecting-orig subaddress valid (%u)\n",
10061 (unsigned) ie_len);
10062 break;
10063 }
10064 redirecting->priv_orig.subaddress.valid = data[pos];
10065 break;
10066/* Private redirecting-orig party id tag */
10068 ast_free(redirecting->priv_orig.tag);
10069 redirecting->priv_orig.tag = ast_malloc(ie_len + 1);
10070 if (redirecting->priv_orig.tag) {
10071 memcpy(redirecting->priv_orig.tag, data + pos, ie_len);
10072 redirecting->priv_orig.tag[ie_len] = 0;
10073 }
10074 break;
10075/* Private redirecting-from party id name */
10077 ast_free(redirecting->priv_from.name.str);
10078 redirecting->priv_from.name.str = ast_malloc(ie_len + 1);
10079 if (redirecting->priv_from.name.str) {
10080 memcpy(redirecting->priv_from.name.str, data + pos, ie_len);
10081 redirecting->priv_from.name.str[ie_len] = 0;
10082 }
10083 break;
10085 if (ie_len != 1) {
10086 ast_log(LOG_WARNING, "Invalid private redirecting-from name char set (%u)\n",
10087 (unsigned) ie_len);
10088 break;
10089 }
10090 redirecting->priv_from.name.char_set = data[pos];
10091 break;
10093 if (ie_len != 1) {
10094 ast_log(LOG_WARNING, "Invalid private redirecting-from name presentation (%u)\n",
10095 (unsigned) ie_len);
10096 break;
10097 }
10098 redirecting->priv_from.name.presentation = data[pos];
10099 break;
10101 if (ie_len != 1) {
10102 ast_log(LOG_WARNING, "Invalid private redirecting-from name valid (%u)\n",
10103 (unsigned) ie_len);
10104 break;
10105 }
10106 redirecting->priv_from.name.valid = data[pos];
10107 break;
10108/* Private redirecting-from party id number */
10110 ast_free(redirecting->priv_from.number.str);
10111 redirecting->priv_from.number.str = ast_malloc(ie_len + 1);
10112 if (redirecting->priv_from.number.str) {
10113 memcpy(redirecting->priv_from.number.str, data + pos, ie_len);
10114 redirecting->priv_from.number.str[ie_len] = 0;
10115 }
10116 break;
10118 if (ie_len != 1) {
10119 ast_log(LOG_WARNING, "Invalid private redirecting-from numbering plan (%u)\n",
10120 (unsigned) ie_len);
10121 break;
10122 }
10123 redirecting->priv_from.number.plan = data[pos];
10124 break;
10126 if (ie_len != 1) {
10127 ast_log(LOG_WARNING, "Invalid private redirecting-from number presentation (%u)\n",
10128 (unsigned) ie_len);
10129 break;
10130 }
10131 redirecting->priv_from.number.presentation = data[pos];
10132 break;
10134 if (ie_len != 1) {
10135 ast_log(LOG_WARNING, "Invalid private redirecting-from number valid (%u)\n",
10136 (unsigned) ie_len);
10137 break;
10138 }
10139 redirecting->priv_from.number.valid = data[pos];
10140 break;
10141/* Private redirecting-from party id subaddress */
10143 ast_free(redirecting->priv_from.subaddress.str);
10144 redirecting->priv_from.subaddress.str = ast_malloc(ie_len + 1);
10145 if (redirecting->priv_from.subaddress.str) {
10146 memcpy(redirecting->priv_from.subaddress.str, data + pos, ie_len);
10147 redirecting->priv_from.subaddress.str[ie_len] = 0;
10148 }
10149 break;
10151 if (ie_len != 1) {
10152 ast_log(LOG_WARNING, "Invalid private redirecting-from type of subaddress (%u)\n",
10153 (unsigned) ie_len);
10154 break;
10155 }
10156 redirecting->priv_from.subaddress.type = data[pos];
10157 break;
10159 if (ie_len != 1) {
10161 "Invalid private redirecting-from subaddress odd-even indicator (%u)\n",
10162 (unsigned) ie_len);
10163 break;
10164 }
10165 redirecting->priv_from.subaddress.odd_even_indicator = data[pos];
10166 break;
10168 if (ie_len != 1) {
10169 ast_log(LOG_WARNING, "Invalid private redirecting-from subaddress valid (%u)\n",
10170 (unsigned) ie_len);
10171 break;
10172 }
10173 redirecting->priv_from.subaddress.valid = data[pos];
10174 break;
10175/* Private redirecting-from party id tag */
10177 ast_free(redirecting->priv_from.tag);
10178 redirecting->priv_from.tag = ast_malloc(ie_len + 1);
10179 if (redirecting->priv_from.tag) {
10180 memcpy(redirecting->priv_from.tag, data + pos, ie_len);
10181 redirecting->priv_from.tag[ie_len] = 0;
10182 }
10183 break;
10184/* Private redirecting-to party id name */
10186 ast_free(redirecting->priv_to.name.str);
10187 redirecting->priv_to.name.str = ast_malloc(ie_len + 1);
10188 if (redirecting->priv_to.name.str) {
10189 memcpy(redirecting->priv_to.name.str, data + pos, ie_len);
10190 redirecting->priv_to.name.str[ie_len] = 0;
10191 }
10192 break;
10194 if (ie_len != 1) {
10195 ast_log(LOG_WARNING, "Invalid private redirecting-to name char set (%u)\n",
10196 (unsigned) ie_len);
10197 break;
10198 }
10199 redirecting->priv_to.name.char_set = data[pos];
10200 break;
10202 if (ie_len != 1) {
10203 ast_log(LOG_WARNING, "Invalid private redirecting-to name presentation (%u)\n",
10204 (unsigned) ie_len);
10205 break;
10206 }
10207 redirecting->priv_to.name.presentation = data[pos];
10208 break;
10210 if (ie_len != 1) {
10211 ast_log(LOG_WARNING, "Invalid private redirecting-to name valid (%u)\n",
10212 (unsigned) ie_len);
10213 break;
10214 }
10215 redirecting->priv_to.name.valid = data[pos];
10216 break;
10217/* Private redirecting-to party id number */
10219 ast_free(redirecting->priv_to.number.str);
10220 redirecting->priv_to.number.str = ast_malloc(ie_len + 1);
10221 if (redirecting->priv_to.number.str) {
10222 memcpy(redirecting->priv_to.number.str, data + pos, ie_len);
10223 redirecting->priv_to.number.str[ie_len] = 0;
10224 }
10225 break;
10227 if (ie_len != 1) {
10228 ast_log(LOG_WARNING, "Invalid private redirecting-to numbering plan (%u)\n",
10229 (unsigned) ie_len);
10230 break;
10231 }
10232 redirecting->priv_to.number.plan = data[pos];
10233 break;
10235 if (ie_len != 1) {
10236 ast_log(LOG_WARNING, "Invalid private redirecting-to number presentation (%u)\n",
10237 (unsigned) ie_len);
10238 break;
10239 }
10240 redirecting->priv_to.number.presentation = data[pos];
10241 break;
10243 if (ie_len != 1) {
10244 ast_log(LOG_WARNING, "Invalid private redirecting-to number valid (%u)\n",
10245 (unsigned) ie_len);
10246 break;
10247 }
10248 redirecting->priv_to.number.valid = data[pos];
10249 break;
10250/* Private redirecting-to party id subaddress */
10252 ast_free(redirecting->priv_to.subaddress.str);
10253 redirecting->priv_to.subaddress.str = ast_malloc(ie_len + 1);
10254 if (redirecting->priv_to.subaddress.str) {
10255 memcpy(redirecting->priv_to.subaddress.str, data + pos, ie_len);
10256 redirecting->priv_to.subaddress.str[ie_len] = 0;
10257 }
10258 break;
10260 if (ie_len != 1) {
10261 ast_log(LOG_WARNING, "Invalid private redirecting-to type of subaddress (%u)\n",
10262 (unsigned) ie_len);
10263 break;
10264 }
10265 redirecting->priv_to.subaddress.type = data[pos];
10266 break;
10268 if (ie_len != 1) {
10270 "Invalid private redirecting-to subaddress odd-even indicator (%u)\n",
10271 (unsigned) ie_len);
10272 break;
10273 }
10274 redirecting->priv_to.subaddress.odd_even_indicator = data[pos];
10275 break;
10277 if (ie_len != 1) {
10278 ast_log(LOG_WARNING, "Invalid private redirecting-to subaddress valid (%u)\n",
10279 (unsigned) ie_len);
10280 break;
10281 }
10282 redirecting->priv_to.subaddress.valid = data[pos];
10283 break;
10284/* Private redirecting-to party id tag */
10286 ast_free(redirecting->priv_to.tag);
10287 redirecting->priv_to.tag = ast_malloc(ie_len + 1);
10288 if (redirecting->priv_to.tag) {
10289 memcpy(redirecting->priv_to.tag, data + pos, ie_len);
10290 redirecting->priv_to.tag[ie_len] = 0;
10291 }
10292 break;
10293/* Redirecting reason code */
10295 if (ie_len != sizeof(value)) {
10296 ast_log(LOG_WARNING, "Invalid redirecting reason (%u)\n",
10297 (unsigned) ie_len);
10298 break;
10299 }
10300 memcpy(&value, data + pos, sizeof(value));
10301 redirecting->reason.code = ntohl(value);
10302 break;
10303/* Redirecting reason string */
10305 ast_free(redirecting->reason.str);
10306 redirecting->reason.str = ast_malloc(ie_len + 1);
10307 if (redirecting->reason.str) {
10308 memcpy(redirecting->reason.str, data + pos, ie_len);
10309 redirecting->reason.str[ie_len] = 0;
10310 }
10311 break;
10312/* Redirecting orig-reason code */
10314 if (ie_len != sizeof(value)) {
10315 ast_log(LOG_WARNING, "Invalid redirecting original reason (%u)\n",
10316 (unsigned) ie_len);
10317 break;
10318 }
10319 memcpy(&value, data + pos, sizeof(value));
10320 redirecting->orig_reason.code = ntohl(value);
10321 break;
10322/* Redirecting orig-reason string */
10324 ast_free(redirecting->orig_reason.str);
10325 redirecting->orig_reason.str = ast_malloc(ie_len + 1);
10326 if (redirecting->orig_reason.str) {
10327 memcpy(redirecting->orig_reason.str, data + pos, ie_len);
10328 redirecting->orig_reason.str[ie_len] = 0;
10329 }
10330 break;
10331/* Redirecting count */
10333 if (ie_len != sizeof(value)) {
10334 ast_log(LOG_WARNING, "Invalid redirecting count (%u)\n",
10335 (unsigned) ie_len);
10336 break;
10337 }
10338 memcpy(&value, data + pos, sizeof(value));
10339 redirecting->count = ntohl(value);
10340 break;
10341/* Redirecting unknown element */
10342 default:
10343 ast_debug(1, "Unknown redirecting element: %u (%u)\n",
10344 (unsigned) ie_id, (unsigned) ie_len);
10345 break;
10346 }
10347 }
10348
10349 switch (frame_version) {
10350 case 1:
10351 /*
10352 * The other end is an earlier version that we need to adjust
10353 * for compatibility.
10354 *
10355 * The earlier version did not have the orig party id or
10356 * orig_reason value.
10357 */
10358 redirecting->from.name.valid = 1;
10360 redirecting->from.number.valid = 1;
10361 if (got_from_combined_presentation) {
10362 redirecting->from.name.presentation = from_combined_presentation;
10363 redirecting->from.number.presentation = from_combined_presentation;
10364 }
10365
10366 redirecting->to.name.valid = 1;
10368 redirecting->to.number.valid = 1;
10369 if (got_to_combined_presentation) {
10370 redirecting->to.name.presentation = to_combined_presentation;
10371 redirecting->to.number.presentation = to_combined_presentation;
10372 }
10373 break;
10374 case 2:
10375 /* The other end is at the same level as we are. */
10376 break;
10377 default:
10378 /*
10379 * The other end is newer than we are.
10380 * We need to assume that they are compatible with us.
10381 */
10382 ast_debug(1, "Redirecting frame has newer version: %u\n",
10383 (unsigned) frame_version);
10384 break;
10385 }
10386
10387 return 0;
10388}

References ast_debug, ast_free, ast_log, ast_malloc, AST_PARTY_CHAR_SET_ISO8859_1, AST_REDIRECTING_COUNT, AST_REDIRECTING_FROM_ID_PRESENTATION, AST_REDIRECTING_FROM_NAME, AST_REDIRECTING_FROM_NAME_CHAR_SET, AST_REDIRECTING_FROM_NAME_PRESENTATION, AST_REDIRECTING_FROM_NAME_VALID, AST_REDIRECTING_FROM_NUMBER, AST_REDIRECTING_FROM_NUMBER_PLAN, AST_REDIRECTING_FROM_NUMBER_PRESENTATION, AST_REDIRECTING_FROM_NUMBER_VALID, AST_REDIRECTING_FROM_SUBADDRESS, AST_REDIRECTING_FROM_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_FROM_SUBADDRESS_TYPE, AST_REDIRECTING_FROM_SUBADDRESS_VALID, AST_REDIRECTING_FROM_TAG, AST_REDIRECTING_ORIG_NAME, AST_REDIRECTING_ORIG_NAME_CHAR_SET, AST_REDIRECTING_ORIG_NAME_PRESENTATION, AST_REDIRECTING_ORIG_NAME_VALID, AST_REDIRECTING_ORIG_NUMBER, AST_REDIRECTING_ORIG_NUMBER_PLAN, AST_REDIRECTING_ORIG_NUMBER_PRESENTATION, AST_REDIRECTING_ORIG_NUMBER_VALID, AST_REDIRECTING_ORIG_REASON_CODE, AST_REDIRECTING_ORIG_REASON_STR, AST_REDIRECTING_ORIG_SUBADDRESS, AST_REDIRECTING_ORIG_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_ORIG_SUBADDRESS_TYPE, AST_REDIRECTING_ORIG_SUBADDRESS_VALID, AST_REDIRECTING_ORIG_TAG, AST_REDIRECTING_PRIV_FROM_NAME, AST_REDIRECTING_PRIV_FROM_NAME_CHAR_SET, AST_REDIRECTING_PRIV_FROM_NAME_PRESENTATION, AST_REDIRECTING_PRIV_FROM_NAME_VALID, AST_REDIRECTING_PRIV_FROM_NUMBER, AST_REDIRECTING_PRIV_FROM_NUMBER_PLAN, AST_REDIRECTING_PRIV_FROM_NUMBER_PRESENTATION, AST_REDIRECTING_PRIV_FROM_NUMBER_VALID, AST_REDIRECTING_PRIV_FROM_SUBADDRESS, AST_REDIRECTING_PRIV_FROM_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_PRIV_FROM_SUBADDRESS_TYPE, AST_REDIRECTING_PRIV_FROM_SUBADDRESS_VALID, AST_REDIRECTING_PRIV_FROM_TAG, AST_REDIRECTING_PRIV_ORIG_NAME, AST_REDIRECTING_PRIV_ORIG_NAME_CHAR_SET, AST_REDIRECTING_PRIV_ORIG_NAME_PRESENTATION, AST_REDIRECTING_PRIV_ORIG_NAME_VALID, AST_REDIRECTING_PRIV_ORIG_NUMBER, AST_REDIRECTING_PRIV_ORIG_NUMBER_PLAN, AST_REDIRECTING_PRIV_ORIG_NUMBER_PRESENTATION, AST_REDIRECTING_PRIV_ORIG_NUMBER_VALID, AST_REDIRECTING_PRIV_ORIG_SUBADDRESS, AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_TYPE, AST_REDIRECTING_PRIV_ORIG_SUBADDRESS_VALID, AST_REDIRECTING_PRIV_ORIG_TAG, AST_REDIRECTING_PRIV_TO_NAME, AST_REDIRECTING_PRIV_TO_NAME_CHAR_SET, AST_REDIRECTING_PRIV_TO_NAME_PRESENTATION, AST_REDIRECTING_PRIV_TO_NAME_VALID, AST_REDIRECTING_PRIV_TO_NUMBER, AST_REDIRECTING_PRIV_TO_NUMBER_PLAN, AST_REDIRECTING_PRIV_TO_NUMBER_PRESENTATION, AST_REDIRECTING_PRIV_TO_NUMBER_VALID, AST_REDIRECTING_PRIV_TO_SUBADDRESS, AST_REDIRECTING_PRIV_TO_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_PRIV_TO_SUBADDRESS_TYPE, AST_REDIRECTING_PRIV_TO_SUBADDRESS_VALID, AST_REDIRECTING_PRIV_TO_TAG, AST_REDIRECTING_REASON_CODE, AST_REDIRECTING_REASON_STR, AST_REDIRECTING_TO_ID_PRESENTATION, AST_REDIRECTING_TO_NAME, AST_REDIRECTING_TO_NAME_CHAR_SET, AST_REDIRECTING_TO_NAME_PRESENTATION, AST_REDIRECTING_TO_NAME_VALID, AST_REDIRECTING_TO_NUMBER, AST_REDIRECTING_TO_NUMBER_PLAN, AST_REDIRECTING_TO_NUMBER_PRESENTATION, AST_REDIRECTING_TO_NUMBER_VALID, AST_REDIRECTING_TO_SUBADDRESS, AST_REDIRECTING_TO_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_TO_SUBADDRESS_TYPE, AST_REDIRECTING_TO_SUBADDRESS_VALID, AST_REDIRECTING_TO_TAG, AST_REDIRECTING_VERSION, ast_party_name::char_set, ast_party_redirecting_reason::code, ast_party_redirecting::count, ast_party_redirecting::from, LOG_WARNING, ast_party_id::name, ast_party_id::number, ast_party_subaddress::odd_even_indicator, ast_party_redirecting::orig, ast_party_redirecting::orig_reason, ast_party_number::plan, ast_party_name::presentation, ast_party_number::presentation, ast_party_redirecting::priv_from, ast_party_redirecting::priv_orig, ast_party_redirecting::priv_to, ast_party_redirecting::reason, ast_party_name::str, ast_party_number::str, ast_party_subaddress::str, ast_party_redirecting_reason::str, ast_party_id::subaddress, ast_party_id::tag, ast_party_redirecting::to, ast_party_subaddress::type, ast_party_name::valid, ast_party_number::valid, ast_party_subaddress::valid, and value.

Referenced by ast_channel_redirecting_sub(), and indicate_redirecting().

◆ ast_ref_namedgroups()

struct ast_namedgroups * ast_ref_namedgroups ( struct ast_namedgroups *  groups)

Definition at line 7812 of file channel.c.

7813{
7814 if (groups) {
7815 ao2_ref(groups, 1);
7816 }
7817 return groups;
7818}

References ao2_ref.

Referenced by ast_channel_named_callgroups_set(), ast_channel_named_pickupgroups_set(), and mkintf().

◆ ast_request()

struct ast_channel * ast_request ( const char *  type,
struct ast_format_cap request_cap,
const struct ast_assigned_ids assignedids,
const struct ast_channel requestor,
const char *  addr,
int *  cause 
)

Requests a channel.

Parameters
typetype of channel to request
request_capFormat capabilities for requested channel
assignedidsUnique ID to create channel with
requestorchannel asking for data
addrdestination of the call
causeCause of failure

Request a channel of a given type, with addr as optional information used by the low level module

Return values
NULLfailure
non-NULLchannel on success

Definition at line 6411 of file channel.c.

6412{
6413 return request_channel(type, request_cap, NULL, assignedids, requestor, addr, cause);
6414}
static struct ast_channel * request_channel(const char *type, struct ast_format_cap *request_cap, struct ast_stream_topology *topology, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *addr, int *cause)
Definition channel.c:6276

References NULL, request_channel(), and type.

Referenced by __ast_request_and_dial(), alloc_playback_chan(), ast_ari_channels_create(), ast_call_forward(), attended_transfer_bridge(), begin_dial_prerun(), blind_transfer_bridge(), build_conf(), chanavail_exec(), conf_run(), conf_start_record(), dial_transfer(), findmeexec(), meetme_menu_admin_extended(), park_local_transfer(), prepare_bridge_media_channel(), prepare_bridge_moh_channel(), retransfer_enter(), ring_entry(), and wait_for_answer().

◆ ast_request_and_dial()

struct ast_channel * ast_request_and_dial ( const char *  type,
struct ast_format_cap cap,
const struct ast_assigned_ids assignedids,
const struct ast_channel requestor,
const char *  addr,
int  timeout,
int *  reason,
const char *  cid_num,
const char *  cid_name 
)

Request a channel of a given type, with data as optional information used by the low level module and attempt to place a call on it.

Parameters
typetype of channel to request
capformat capabilities for requested channel
assignedidsUnique Id to assign to channel
requestorchannel asking for data
addrdestination of the call
timeoutmaximum amount of time to wait for an answer
reasonwhy unsuccessful (if unsuccessful)
cid_numCaller-ID Number
cid_nameCaller-ID Name (ascii)
Returns
Returns an ast_channel on success or no answer, NULL on failure. Check the value of chan->_state to know if the call was answered or not.

Definition at line 6231 of file channel.c.

6232{
6233 return __ast_request_and_dial(type, cap, assignedids, requestor, addr, timeout, outstate, cidnum, cidname, NULL);
6234}
struct ast_channel * __ast_request_and_dial(const char *type, struct ast_format_cap *cap, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *addr, int timeout, int *outstate, const char *cid_num, const char *cid_name, struct outgoing_helper *oh)
Request a channel of a given type, with data as optional information used by the low level module and...
Definition channel.c:6033

References __ast_request_and_dial(), NULL, and type.

Referenced by generic_recall().

◆ ast_request_with_stream_topology()

struct ast_channel * ast_request_with_stream_topology ( const char *  type,
struct ast_stream_topology topology,
const struct ast_assigned_ids assignedids,
const struct ast_channel requestor,
const char *  addr,
int *  cause 
)

Requests a channel (specifying stream topology)

Parameters
typetype of channel to request
topologyStream topology for requested channel
assignedidsUnique ID to create channel with
requestorchannel asking for data
addrdestination of the call
causeCause of failure

Request a channel of a given type, with addr as optional information used by the low level module

Return values
NULLfailure
non-NULLchannel on success

Definition at line 6416 of file channel.c.

6417{
6418 return request_channel(type, NULL, topology, assignedids, requestor, addr, cause);
6419}

References NULL, request_channel(), and type.

Referenced by dial_exec_full(), and do_forward().

◆ ast_safe_sleep()

int ast_safe_sleep ( struct ast_channel chan,
int  ms 
)

Wait, look for hangups.

Wait for a specified amount of time, looking for hangups.

Definition at line 1561 of file channel.c.

1562{
1563 return safe_sleep_conditional(chan, ms, NULL, NULL, 1);
1564}
static int safe_sleep_conditional(struct ast_channel *chan, int timeout_ms, int(*cond)(void *), void *data, unsigned int generate_silence)
Wait, look for hangups and condition arg.
Definition channel.c:1485

References NULL, and safe_sleep_conditional().

Referenced by __analog_ss_thread(), adsi_transmit_message_full(), alarmreceiver_exec(), analog_ss_thread(), ast_senddigit(), ast_senddigit_mf(), conf_run(), dictate_exec(), disa_exec(), dtmf_no_bridge(), dtmf_stream(), flash_exec(), mf_stream(), milliwatt_exec(), old_milliwatt_exec(), pbx_builtin_wait(), play_moh_exec(), playtone(), privacy_exec(), send_tone_burst(), sf_stream(), testclient_exec(), testserver_exec(), try_calling(), waitforcond_exec(), waituntil_exec(), and zapateller_exec().

◆ ast_safe_sleep_conditional()

int ast_safe_sleep_conditional ( struct ast_channel chan,
int  ms,
int(*)(void *)  cond,
void *  data 
)

Wait for a specified amount of time, looking for hangups and a condition argument.

Parameters
chanchannel to wait for
mslength of time in milliseconds to sleep.
conda function pointer for testing continue condition
dataargument to be passed to the condition test function
Returns
returns -1 on hangup, otherwise 0.

Waits for a specified amount of time, servicing the channel as required. If cond returns 0, this function returns.

Definition at line 1555 of file channel.c.

1556{
1557 return safe_sleep_conditional(chan, timeout_ms, cond, data, 1);
1558}
ast_cond_t cond
Definition app_sla.c:336

References cond, ast_frame::data, and safe_sleep_conditional().

◆ ast_safe_sleep_without_silence()

int ast_safe_sleep_without_silence ( struct ast_channel chan,
int  ms 
)

Wait for a specified amount of time, looking for hangups, and do not generate silence.

Parameters
chanchannel to wait for
mslength of time in milliseconds to sleep. This should never be less than zero.

Waits for a specified amount of time, servicing the channel as required.

Returns
returns -1 on hangup, otherwise 0.
Note
Unlike ast_safe_sleep this will not generate silence if Asterisk is configured to do so.

Definition at line 1566 of file channel.c.

1567{
1568 return safe_sleep_conditional(chan, ms, NULL, NULL, 0);
1569}

References NULL, and safe_sleep_conditional().

Referenced by wait_for_hangup().

◆ ast_say_character_str()

int ast_say_character_str ( struct ast_channel chan,
const char *  str,
const char *  ints,
const char *  lang,
enum ast_say_case_sensitivity  sensitivity 
)

function to pronounce character and phonetic strings

Definition at line 8377 of file channel.c.

8379{
8380 return ast_say_character_str_full(chan, str, ints, lang, sensitivity, -1, -1);
8381}
const char * str
Definition app_jack.c:150
SAY_EXTERN int(* ast_say_character_str_full)(struct ast_channel *chan, const char *num, const char *ints, const char *lang, enum ast_say_case_sensitivity sensitivity, int audiofd, int ctrlfd) SAY_INIT(ast_say_character_str_full)
Definition say.h:194

References ast_say_character_str_full, and str.

Referenced by common_exec(), pbx_builtin_saycharacters(), pbx_builtin_saycharacters_case(), play_mailbox_owner(), play_on_channel(), and vmsayname_exec().

◆ ast_say_digit_str()

int ast_say_digit_str ( struct ast_channel chan,
const char *  num,
const char *  ints,
const char *  lang 
)

says digits of a string

Parameters
chanchannel to act upon
numstring to speak
intswhich dtmf to interrupt on
langlanguage to speak in

Vocally says the digits of a given string

Return values
0on succes
DTMFif interrupted
-1on failure

Definition at line 8365 of file channel.c.

8367{
8368 return ast_say_digit_str_full(chan, str, ints, lang, -1, -1);
8369}
SAY_EXTERN int(* ast_say_digit_str_full)(struct ast_channel *chan, const char *num, const char *ints, const char *lang, int audiofd, int ctrlfd) SAY_INIT(ast_say_digit_str_full)
Same as ast_say_digit_str() with audiofd for received audio and returns 1 on ctrlfd being readable.
Definition say.h:162

References ast_say_digit_str_full, and str.

Referenced by __analog_ss_thread(), forward_message(), invent_message(), invent_message(), pbx_builtin_saydigits(), play_message_callerid(), and play_on_channel().

◆ ast_say_digits()

int ast_say_digits ( struct ast_channel chan,
int  num,
const char *  ints,
const char *  lang 
)

says digits

Parameters
chanchannel to act upon
numnumber to speak
intswhich dtmf to interrupt on
langlanguage to speak

Vocally says digits of a given number

Return values
0on success
DTMFif interrupted
-1on failure

Definition at line 8359 of file channel.c.

8361{
8362 return ast_say_digits_full(chan, num, ints, lang, -1, -1);
8363}
int ast_say_digits_full(struct ast_channel *chan, int num, const char *ints, const char *lang, int audiofd, int ctrlfd)
Same as ast_say_digits() with audiofd for received audio and returns 1 on ctrlfd being readable.
Definition channel.c:8389

References ast_say_digits_full().

Referenced by announce_to_dial(), common_exec(), conf_exec(), conf_run(), and say_parking_space().

◆ ast_say_digits_full()

int ast_say_digits_full ( struct ast_channel chan,
int  num,
const char *  ints,
const char *  lang,
int  audiofd,
int  ctrlfd 
)

◆ ast_say_enumeration()

int ast_say_enumeration ( struct ast_channel chan,
int  num,
const char *  ints,
const char *  lang,
const char *  options 
)

says an enumeration

Parameters
chanchannel to say them enumeration on
numnumber to say on the channel
intswhich dtmf to interrupt on
langlanguage to speak the enumeration
optionsset to 'f' for female, 'm' for male, 'c' for commune, 'n' for neuter

Vocally says an enumeration on a given channel (first, second, third, forth, thirtyfirst, hundredth, ....) Especially useful for dates and messages. Says 'last' if num equals to INT_MAX

Return values
0on success
DTMFdigit on interrupt
-1on failure

Definition at line 8353 of file channel.c.

8355{
8356 return ast_say_enumeration_full(chan, num, ints, language, options, -1, -1);
8357}
static char language[MAX_LANGUAGE]
Definition chan_iax2.c:361
SAY_EXTERN int(* ast_say_enumeration_full)(struct ast_channel *chan, int num, const char *ints, const char *lang, const char *options, int audiofd, int ctrlfd) SAY_INIT(ast_say_enumeration_full)
Same as ast_say_enumeration() with audiofd for received audio and returns 1 on ctrlfd being readable.
Definition say.h:125
static struct test_options options

References ast_say_enumeration_full, language, and options.

Referenced by ast_say_date_da(), ast_say_date_de(), ast_say_date_is(), ast_say_date_with_format_da(), ast_say_date_with_format_de(), ast_say_date_with_format_en(), ast_say_date_with_format_is(), ast_say_date_with_format_pl(), and ast_say_date_with_format_vi().

◆ ast_say_money_str()

int ast_say_money_str ( struct ast_channel chan,
const char *  str,
const char *  ints,
const char *  lang 
)

function to pronounce monetary amounts

Definition at line 8371 of file channel.c.

8373{
8374 return ast_say_money_str_full(chan, str, ints, lang, -1, -1);
8375}
SAY_EXTERN int(* ast_say_money_str_full)(struct ast_channel *chan, const char *num, const char *ints, const char *lang, int audiofd, int ctrlfd) SAY_INIT(ast_say_money_str_full)
Definition say.h:170

References ast_say_money_str_full, and str.

Referenced by pbx_builtin_saymoney().

◆ ast_say_number()

int ast_say_number ( struct ast_channel chan,
int  num,
const char *  ints,
const char *  lang,
const char *  options 
)

says a number

Parameters
chanchannel to say them number on
numnumber to say on the channel
intswhich dtmf to interrupt on
langlanguage to speak the number
optionsset to 'f' for female, 'm' for male, 'c' for commune, 'n' for neuter

Vocally says a number on a given channel

Return values
0on success
DTMFdigit on interrupt
-1on failure

Definition at line 8341 of file channel.c.

8343{
8344 return ast_say_number_full(chan, num, ints, language, options, -1, -1);
8345}
SAY_EXTERN int(* ast_say_number_full)(struct ast_channel *chan, int num, const char *ints, const char *lang, const char *options, int audiofd, int ctrlfd) SAY_INIT(ast_say_number_full)
Same as ast_say_number() with audiofd for received audio and returns 1 on ctrlfd being readable.
Definition say.h:86

References ast_say_number_full, language, and options.

Referenced by announce_user_count(), app_exec(), ast_say_date_da(), ast_say_date_de(), ast_say_date_en(), ast_say_date_fr(), ast_say_date_gr(), ast_say_date_he(), ast_say_date_hu(), ast_say_date_is(), ast_say_date_ja(), ast_say_date_ka(), ast_say_date_nl(), ast_say_date_pt(), ast_say_date_th(), ast_say_date_with_format_da(), ast_say_date_with_format_de(), ast_say_date_with_format_en(), ast_say_date_with_format_es(), ast_say_date_with_format_fr(), ast_say_date_with_format_is(), ast_say_date_with_format_it(), ast_say_date_with_format_nl(), ast_say_date_with_format_pl(), ast_say_date_with_format_pt(), ast_say_date_with_format_th(), ast_say_date_with_format_vi(), ast_say_datetime_en(), ast_say_datetime_fr(), ast_say_datetime_from_now_en(), ast_say_datetime_from_now_fr(), ast_say_datetime_from_now_he(), ast_say_datetime_from_now_ka(), ast_say_datetime_from_now_pt(), ast_say_datetime_he(), ast_say_datetime_ja(), ast_say_datetime_pt(), ast_say_datetime_th(), ast_say_datetime_zh(), ast_say_time_de(), ast_say_time_en(), ast_say_time_fr(), ast_say_time_gr(), ast_say_time_hu(), ast_say_time_ja(), ast_say_time_ka(), ast_say_time_nl(), ast_say_time_pt(), ast_say_time_pt_BR(), ast_say_time_th(), ast_say_time_zh(), conf_run(), count_exec(), dictate_exec(), get_folder(), get_folder_ja(), gr_say_number_female(), limits_interval_playback(), meetme_menu_admin_extended(), pbx_builtin_saynumber(), play_message(), play_message_duration(), play_on_channel(), playback_common(), say_and_wait(), say_position(), try_calling(), vm_intro_gr(), vm_intro_he(), vm_intro_multilang(), vm_intro_pt(), and vm_intro_pt_BR().

◆ ast_say_ordinal()

int ast_say_ordinal ( struct ast_channel chan,
int  num,
const char *  ints,
const char *  lang,
const char *  options 
)

says an ordinal number

Parameters
chanchannel to say them number on
numordinal number to say on the channel
intswhich dtmf to interrupt on
langlanguage to speak the number
optionsset to 'f' for female, 'm' for male, 'c' for commune, 'n' for neuter

Vocally says an ordinal number on a given channel

Return values
0on success
DTMFdigit on interrupt
-1on failure

Definition at line 8347 of file channel.c.

8349{
8350 return ast_say_ordinal_full(chan, num, ints, language, options, -1, -1);
8351}
SAY_EXTERN int(* ast_say_ordinal_full)(struct ast_channel *chan, int num, const char *ints, const char *lang, const char *options, int audiofd, int ctrlfd) SAY_INIT(ast_say_ordinal_full)
Same as ast_say_number() with audiofd for received audio and returns 1 on ctrlfd being readable.
Definition say.h:105

References ast_say_ordinal_full, language, and options.

Referenced by pbx_builtin_sayordinal().

◆ ast_say_phonetic_str()

int ast_say_phonetic_str ( struct ast_channel chan,
const char *  str,
const char *  ints,
const char *  lang 
)

Definition at line 8383 of file channel.c.

8385{
8386 return ast_say_phonetic_str_full(chan, str, ints, lang, -1, -1);
8387}
SAY_EXTERN int(* ast_say_phonetic_str_full)(struct ast_channel *chan, const char *num, const char *ints, const char *lang, int audiofd, int ctrlfd) SAY_INIT(ast_say_phonetic_str_full)
Definition say.h:199

References ast_say_phonetic_str_full, and str.

Referenced by pbx_builtin_sayphonetic().

◆ ast_senddigit()

int ast_senddigit ( struct ast_channel chan,
char  digit,
unsigned int  duration 
)

Send a DTMF digit to a channel.

Parameters
chanchannel to act upon
digitthe DTMF digit to send, encoded in ASCII
durationthe duration of the digit ending in ms
Precondition
This must only be called by the channel's media handler thread.
Returns
0 on success, -1 on failure

Definition at line 5031 of file channel.c.

5032{
5033 if (duration < AST_DEFAULT_EMULATE_DTMF_DURATION) {
5035 }
5036 if (ast_channel_tech(chan)->send_digit_begin) {
5038 ast_safe_sleep(chan, duration);
5039 }
5040
5041 return ast_senddigit_end(chan, digit, duration);
5042}
int ast_senddigit_begin(struct ast_channel *chan, char digit)
Send a DTMF digit to a channel.
Definition channel.c:4931
int ast_safe_sleep(struct ast_channel *chan, int ms)
Wait, look for hangups.
Definition channel.c:1561

References AST_DEFAULT_EMULATE_DTMF_DURATION, ast_safe_sleep(), ast_senddigit_begin(), ast_senddigit_end(), and digit.

Referenced by dial_exec_full(), and dtmf_stream().

◆ ast_senddigit_begin()

int ast_senddigit_begin ( struct ast_channel chan,
char  digit 
)

Send a DTMF digit to a channel.

Parameters
chanchannel to act upon
digitthe DTMF digit to send, encoded in ASCII
Returns
0 on success, -1 on failure

Definition at line 4931 of file channel.c.

4932{
4933 /* Device does not support DTMF tones, lets fake
4934 * it by doing our own generation. */
4935 static const char * const dtmf_tones[] = {
4936 "941+1336", /* 0 */
4937 "697+1209", /* 1 */
4938 "697+1336", /* 2 */
4939 "697+1477", /* 3 */
4940 "770+1209", /* 4 */
4941 "770+1336", /* 5 */
4942 "770+1477", /* 6 */
4943 "852+1209", /* 7 */
4944 "852+1336", /* 8 */
4945 "852+1477", /* 9 */
4946 "697+1633", /* A */
4947 "770+1633", /* B */
4948 "852+1633", /* C */
4949 "941+1633", /* D */
4950 "941+1209", /* * */
4951 "941+1477" /* # */
4952 };
4953
4954 if (!ast_channel_tech(chan)->send_digit_begin)
4955 return 0;
4956
4957 ast_channel_lock(chan);
4960 ast_channel_unlock(chan);
4961
4962 if (!ast_channel_tech(chan)->send_digit_begin(chan, digit))
4963 return 0;
4964
4965 if (digit >= '0' && digit <='9')
4966 ast_playtones_start(chan, 0, dtmf_tones[digit-'0'], 0);
4967 else if (digit >= 'A' && digit <= 'D')
4968 ast_playtones_start(chan, 0, dtmf_tones[digit-'A'+10], 0);
4969 else if (digit == '*')
4970 ast_playtones_start(chan, 0, dtmf_tones[14], 0);
4971 else if (digit == '#')
4972 ast_playtones_start(chan, 0, dtmf_tones[15], 0);
4973 else {
4974 /* not handled */
4975 ast_debug(1, "Unable to generate DTMF tone '%c' for '%s'\n", digit, ast_channel_name(chan));
4976 }
4977
4978 return 0;
4979}
void ast_channel_sending_dtmf_digit_set(struct ast_channel *chan, char value)
void ast_channel_sending_dtmf_tv_set(struct ast_channel *chan, struct timeval value)
int ast_playtones_start(struct ast_channel *chan, int vol, const char *tonelist, int interruptible)
Start playing a list of tones on a channel.

References ast_channel_lock, ast_channel_name(), ast_channel_sending_dtmf_digit_set(), ast_channel_sending_dtmf_tv_set(), ast_channel_unlock, ast_debug, ast_playtones_start(), ast_tvnow(), and digit.

Referenced by ast_senddigit(), ast_senddigit_external(), and ast_write_stream().

◆ ast_senddigit_end()

int ast_senddigit_end ( struct ast_channel chan,
char  digit,
unsigned int  duration 
)

Send a DTMF digit to a channel.

Parameters
chanchannel to act upon
digitthe DTMF digit to send, encoded in ASCII
durationthe duration of the digit ending in ms
Returns
Returns 0 on success, -1 on failure

Definition at line 4981 of file channel.c.

4982{
4983 int res = -1;
4984
4985 if (ast_channel_tech(chan)->send_digit_end)
4986 res = ast_channel_tech(chan)->send_digit_end(chan, digit, duration);
4987
4988 ast_channel_lock(chan);
4991 }
4992 ast_channel_unlock(chan);
4993
4994 if (res && ast_channel_generator(chan))
4995 ast_playtones_stop(chan);
4996
4997 return 0;
4998}
char ast_channel_sending_dtmf_digit(const struct ast_channel *chan)
void ast_playtones_stop(struct ast_channel *chan)
Stop playing tones on a channel.
int(*const send_digit_end)(struct ast_channel *chan, char digit, unsigned int duration)
Stop sending a literal DTMF digit.
Definition channel.h:710

References ast_channel_generator(), ast_channel_lock, ast_channel_sending_dtmf_digit(), ast_channel_sending_dtmf_digit_set(), ast_channel_unlock, ast_playtones_stop(), digit, and ast_channel_tech::send_digit_end.

Referenced by ast_channel_end_dtmf(), ast_senddigit(), ast_senddigit_external(), and ast_write_stream().

◆ ast_senddigit_external()

int ast_senddigit_external ( struct ast_channel chan,
char  digit,
unsigned int  duration 
)

Send a DTMF digit to a channel from an external thread.

Parameters
chanchannel to act upon
digitthe DTMF digit to send, encoded in ASCII
durationthe duration of the digit ending in ms
Precondition
This must only be called by threads that are not the channel's media handler thread.
Returns
0 on success, -1 on failure

Definition at line 5044 of file channel.c.

5045{
5046 if (duration < AST_DEFAULT_EMULATE_DTMF_DURATION) {
5048 }
5049 if (ast_channel_tech(chan)->send_digit_begin) {
5051 usleep(duration * 1000);
5052 }
5053
5054 return ast_senddigit_end(chan, digit, duration);
5055}

References AST_DEFAULT_EMULATE_DTMF_DURATION, ast_senddigit_begin(), ast_senddigit_end(), and digit.

Referenced by dtmf_stream(), and manager_play_dtmf().

◆ ast_senddigit_mf()

int ast_senddigit_mf ( struct ast_channel chan,
char  digit,
unsigned int  duration,
unsigned int  durationkp,
unsigned int  durationst,
int  is_external 
)

Send an MF digit to a channel.

Parameters
chanchannel to act upon
digitthe MF digit to send, encoded in ASCII
durationthe duration of a numeric digit ending in ms
durationkpthe duration of a KP digit ending in ms
durationstthe duration of a ST, STP, ST2P, or ST3P digit ending in ms
is_external1 if called by a thread that is not the channel's media handler thread, 0 if called by the channel's media handler thread.
Returns
0 on success, -1 on failure

Definition at line 5009 of file channel.c.

5011{
5012 if (duration < DEFAULT_EMULATE_MF_DURATION) {
5013 duration = DEFAULT_EMULATE_MF_DURATION;
5014 }
5015 if (ast_channel_tech(chan)->send_digit_begin) {
5016 if (digit == '*') {
5017 duration = durationkp;
5018 } else if (digit == '#' || digit == 'A' || digit == 'B' || digit == 'C') {
5019 duration = durationst;
5020 }
5022 if (is_external) {
5023 usleep(duration * 1000);
5024 } else {
5025 ast_safe_sleep(chan, duration);
5026 }
5027 }
5028 return ast_senddigit_mf_end(chan);
5029}
int ast_senddigit_mf_begin(struct ast_channel *chan, char digit)
Send an MF digit to a channel.
Definition channel.c:4892
int ast_senddigit_mf_end(struct ast_channel *chan)
End sending an MF digit to a channel.
Definition channel.c:5000
#define DEFAULT_EMULATE_MF_DURATION
Definition channel.c:110

References ast_safe_sleep(), ast_senddigit_mf_begin(), ast_senddigit_mf_end(), DEFAULT_EMULATE_MF_DURATION, and digit.

Referenced by mf_stream().

◆ ast_senddigit_mf_begin()

int ast_senddigit_mf_begin ( struct ast_channel chan,
char  digit 
)

Send an MF digit to a channel.

Parameters
chanchannel to act upon
digitthe MF digit to send, encoded in ASCII
Returns
0 on success, -1 on failure

Definition at line 4892 of file channel.c.

4893{
4894 static const char * const mf_tones[] = {
4895 "1300+1500", /* 0 */
4896 "700+900", /* 1 */
4897 "700+1100", /* 2 */
4898 "900+1100", /* 3 */
4899 "700+1300", /* 4 */
4900 "900+1300", /* 5 */
4901 "1100+1300", /* 6 */
4902 "700+1500", /* 7 */
4903 "900+1500", /* 8 */
4904 "1100+1500", /* 9 */
4905 "1100+1700", /* * (KP) */
4906 "1500+1700", /* # (ST) */
4907 "900+1700", /* A (STP) */
4908 "1300+1700", /* B (ST2P) */
4909 "700+1700" /* C (ST3P) */
4910 };
4911
4912 if (digit >= '0' && digit <='9') {
4913 ast_playtones_start(chan, 0, mf_tones[digit-'0'], 0);
4914 } else if (digit == '*') {
4915 ast_playtones_start(chan, 0, mf_tones[10], 0);
4916 } else if (digit == '#') {
4917 ast_playtones_start(chan, 0, mf_tones[11], 0);
4918 } else if (digit == 'A') {
4919 ast_playtones_start(chan, 0, mf_tones[12], 0);
4920 } else if (digit == 'B') {
4921 ast_playtones_start(chan, 0, mf_tones[13], 0);
4922 } else if (digit == 'C') {
4923 ast_playtones_start(chan, 0, mf_tones[14], 0);
4924 } else {
4925 /* not handled */
4926 ast_log(LOG_WARNING, "Unable to generate MF tone '%c' for '%s'\n", digit, ast_channel_name(chan));
4927 }
4928 return 0;
4929}
static const float mf_tones[]
Definition dsp.c:332

References ast_channel_name(), ast_log, ast_playtones_start(), digit, LOG_WARNING, and mf_tones.

Referenced by ast_senddigit_mf().

◆ ast_senddigit_mf_end()

int ast_senddigit_mf_end ( struct ast_channel chan)

End sending an MF digit to a channel.

Parameters
chanchannel to act upon
Returns
Returns 0 on success, -1 on failure

Definition at line 5000 of file channel.c.

5001{
5002 if (ast_channel_generator(chan)) {
5003 ast_playtones_stop(chan);
5004 return 0;
5005 }
5006 return -1;
5007}

References ast_channel_generator(), and ast_playtones_stop().

Referenced by ast_senddigit_mf(), mf_stream(), and sf_stream().

◆ ast_sendtext()

int ast_sendtext ( struct ast_channel chan,
const char *  text 
)

Sends text to a channel.

Parameters
chanchannel to act upon
textstring of text to send on the channel

Write text to a display on a channel

Note
The channel does not need to be locked before calling this function.
Return values
0on success
-1on failure

Definition at line 4866 of file channel.c.

4867{
4868 struct ast_msg_data *msg;
4869 int rc;
4870 struct ast_msg_data_attribute attrs[] =
4871 {
4872 {
4874 .value = (char *)text,
4875 }
4876 };
4877
4878 if (ast_strlen_zero(text)) {
4879 return 0;
4880 }
4881
4883 if (!msg) {
4884 return -1;
4885 }
4886 rc = ast_sendtext_data(chan, msg);
4887 ast_free(msg);
4888
4889 return rc;
4890}
struct ast_msg_data * ast_msg_data_alloc(enum ast_msg_data_source_type source, struct ast_msg_data_attribute attributes[], size_t count)
Allocates an ast_msg_data structure.
@ AST_MSG_DATA_ATTR_BODY
Definition message.h:458
@ AST_MSG_DATA_SOURCE_TYPE_UNKNOWN
Definition message.h:447
enum ast_msg_data_attribute_type type
Definition message.h:463

References ARRAY_LEN, ast_free, ast_msg_data_alloc(), AST_MSG_DATA_ATTR_BODY, AST_MSG_DATA_SOURCE_TYPE_UNKNOWN, ast_sendtext_data(), ast_strlen_zero(), text, and ast_msg_data_attribute::type.

Referenced by __ast_read(), handle_sendtext(), sendtext_exec(), and sendtext_safe().

◆ ast_sendtext_data()

int ast_sendtext_data ( struct ast_channel chan,
struct ast_msg_data msg 
)

Sends text to a channel in an ast_msg_data structure wrapper with ast_sendtext as fallback.

Since
13.22.0
15.5.0
Parameters
chanchannel to act upon
msgast_msg_data structure

Write text to a display on a channel. If the channel driver doesn't support the send_text_data callback. then the original send_text callback will be used if available.

Note
The channel does not need to be locked before calling this function.
Return values
0on success
-1on failure

Definition at line 4808 of file channel.c.

4809{
4810 int res = 0;
4811 const char *body = ast_msg_data_get_attribute(msg, AST_MSG_DATA_ATTR_BODY);
4812 const char *content_type = ast_msg_data_get_attribute(msg, AST_MSG_DATA_ATTR_CONTENT_TYPE);
4813
4814 ast_channel_lock(chan);
4815 /* Stop if we're a zombie or need a soft hangup */
4817 ast_channel_unlock(chan);
4818 return -1;
4819 }
4820
4821 CHECK_BLOCKING(chan);
4822 if (ast_channel_tech(chan)->write_text
4823 && (ast_strlen_zero(content_type) || ast_begins_with(content_type, "text/"))
4825 struct ast_frame f;
4826 /* T.140 payload does not include the null byte terminator */
4827 size_t body_len = strlen(body);
4828
4829 /* Process as T.140 text (moved here from ast_sendtext() */
4830 memset(&f, 0, sizeof(f));
4831 f.src = "DIALPLAN";
4832 f.subclass.format = ast_format_t140;
4833 f.frametype = AST_FRAME_TEXT;
4834 f.datalen = body_len;
4835 f.mallocd = AST_MALLOCD_DATA;
4836 f.data.ptr = ast_strdup(body);
4837 if (f.data.ptr) {
4838 res = ast_channel_tech(chan)->write_text(chan, &f);
4839 } else {
4840 res = -1;
4841 }
4842 ast_frfree(&f);
4843 } else if ((ast_channel_tech(chan)->properties & AST_CHAN_TP_SEND_TEXT_DATA)
4844 && ast_channel_tech(chan)->send_text_data) {
4845 /* Send enhanced message to a channel driver that supports it */
4846 ast_debug(1, "Sending TEXT_DATA from '%s' to %s:%s %s\n",
4849 ast_channel_name(chan), body);
4850 res = ast_channel_tech(chan)->send_text_data(chan, msg);
4851 } else if (ast_channel_tech(chan)->send_text
4852 && (ast_strlen_zero(content_type) || ast_begins_with(content_type, "text/"))) {
4853 /* Send the body of an enhanced message to a channel driver that supports only a char str */
4854 ast_debug(1, "Sending TEXT to %s: %s\n", ast_channel_name(chan), body);
4855 res = ast_channel_tech(chan)->send_text(chan, body);
4856 } else {
4857 ast_debug(1, "Channel technology does not support sending content type '%s' on channel '%s'\n",
4858 S_OR(content_type, "text/plain"), ast_channel_name(chan));
4859 res = -1;
4860 }
4862 ast_channel_unlock(chan);
4863 return res;
4864}
static void send_text(unsigned char pos, unsigned char inverse, struct unistimsession *pte, const char *text)
#define CHECK_BLOCKING(c)
Set the blocking indication on the channel.
Definition channel.h:2938
@ AST_CHAN_TP_SEND_TEXT_DATA
Channels have this property if they implement send_text_data.
Definition channel.h:995
@ AST_MEDIA_TYPE_TEXT
Definition codec.h:35
struct ast_format * ast_format_t140
Built-in cached t140 format.
const char * ast_msg_data_get_attribute(struct ast_msg_data *msg, enum ast_msg_data_attribute_type attribute_type)
Get attribute from ast_msg_data.
@ AST_MSG_DATA_ATTR_TO
Definition message.h:455
@ AST_MSG_DATA_ATTR_FROM
Definition message.h:456
@ AST_MSG_DATA_ATTR_CONTENT_TYPE
Definition message.h:457
#define AST_MALLOCD_DATA
static int force_inline attribute_pure ast_begins_with(const char *str, const char *prefix)
Checks whether a string begins with another.
Definition strings.h:97
int(*const send_text)(struct ast_channel *chan, const char *text)
Display or transmit text.
Definition channel.h:776
int(*const write_text)(struct ast_channel *chan, struct ast_frame *frame)
Write a text frame, in standard format.
Definition channel.h:809
int(*const send_text_data)(struct ast_channel *chan, struct ast_msg_data *data)
Display or transmit text with data.
Definition channel.h:864

References ast_begins_with(), AST_CHAN_TP_SEND_TEXT_DATA, ast_channel_flags(), ast_channel_lock, ast_channel_name(), ast_channel_nativeformats(), ast_channel_unlock, ast_check_hangup(), ast_clear_flag, ast_debug, AST_FLAG_BLOCKING, AST_FLAG_ZOMBIE, ast_format_cap_has_type(), ast_format_t140, AST_FRAME_TEXT, ast_frfree, AST_MALLOCD_DATA, AST_MEDIA_TYPE_TEXT, AST_MSG_DATA_ATTR_BODY, AST_MSG_DATA_ATTR_CONTENT_TYPE, AST_MSG_DATA_ATTR_FROM, AST_MSG_DATA_ATTR_TO, ast_msg_data_get_attribute(), ast_strdup, ast_strlen_zero(), ast_test_flag, CHECK_BLOCKING, ast_frame::data, ast_frame::datalen, ast_frame_subclass::format, ast_frame::frametype, ast_frame::mallocd, ast_frame::ptr, S_OR, send_text(), ast_channel_tech::send_text, ast_channel_tech::send_text_data, ast_frame::src, ast_frame::subclass, and ast_channel_tech::write_text.

Referenced by __ast_read(), ast_sendtext(), bridge_channel_handle_write(), and sendtext_exec().

◆ ast_set_callerid()

void ast_set_callerid ( struct ast_channel chan,
const char *  cid_num,
const char *  cid_name,
const char *  cid_ani 
)

Set caller ID number, name and ANI and generate AMI event.

Note
Use ast_channel_set_caller() and ast_channel_set_caller_event() instead.
The channel does not need to be locked before calling this function.

Definition at line 7408 of file channel.c.

7409{
7410 ast_channel_lock(chan);
7411
7412 if (cid_num) {
7413 ast_channel_caller(chan)->id.number.valid = 1;
7414 ast_free(ast_channel_caller(chan)->id.number.str);
7415 ast_channel_caller(chan)->id.number.str = ast_strdup(cid_num);
7416 }
7417 if (cid_name) {
7418 ast_channel_caller(chan)->id.name.valid = 1;
7419 ast_free(ast_channel_caller(chan)->id.name.str);
7420 ast_channel_caller(chan)->id.name.str = ast_strdup(cid_name);
7421 }
7422 if (cid_ani) {
7424 ast_free(ast_channel_caller(chan)->ani.number.str);
7425 ast_channel_caller(chan)->ani.number.str = ast_strdup(cid_ani);
7426 }
7427
7429
7430 ast_channel_unlock(chan);
7431}

References ast_party_caller::ani, ast_channel_caller(), ast_channel_lock, ast_channel_publish_snapshot(), ast_channel_unlock, ast_free, ast_strdup, ast_party_caller::id, name, ast_party_id::name, ast_party_id::number, ast_party_name::str, ast_party_number::str, ast_party_name::valid, and ast_party_number::valid.

Referenced by __analog_ss_thread(), __ast_request_and_dial(), analog_ss_thread(), ari_channels_handle_originate_with_id(), disa_exec(), handle_setcallerid(), pbx_outgoing_attempt(), privacy_exec(), ring_entry(), and socket_process_helper().

◆ ast_set_hangupsource()

void ast_set_hangupsource ( struct ast_channel chan,
const char *  source,
int  force 
)

Set the source of the hangup in this channel and it's bridge.

Parameters
chanchannel to set the field on
sourcea string describing the source of the hangup for this channel
force
Note
Absolutely NO channel locks should be held before calling this function.
Since
1.8

Hangupsource is generally the channel name that caused the bridge to be hung up, but it can also be other things such as "dialplan/agi" This can then be logged in the CDR or CEL

Definition at line 2532 of file channel.c.

2533{
2535
2536 ast_channel_lock(chan);
2537 if (force || ast_strlen_zero(ast_channel_hangupsource(chan))) {
2538 ast_channel_hangupsource_set(chan, source);
2539 }
2540 ast_channel_unlock(chan);
2541
2542 if (bridge) {
2543 ast_channel_lock(bridge);
2544 if (force || ast_strlen_zero(ast_channel_hangupsource(bridge))) {
2545 ast_channel_hangupsource_set(bridge, source);
2546 }
2547 ast_channel_unlock(bridge);
2548 }
2549}
struct ast_channel * ast_channel_bridge_peer(struct ast_channel *chan)
Get the channel's bridge peer only if the bridge is two-party.
Definition channel.c:10674
const char * ast_channel_hangupsource(const struct ast_channel *chan)
#define ast_channel_cleanup(c)
Cleanup a channel reference.
Definition channel.h:3036

References ast_channel_bridge_peer(), ast_channel_cleanup, ast_channel_hangupsource(), ast_channel_lock, ast_channel_unlock, ast_strlen_zero(), and RAII_VAR.

Referenced by __dahdi_exception(), analog_exception(), call(), chan_pjsip_session_end(), func_channel_write_real(), handle_hangup(), pbx_builtin_hangup(), session_inv_on_media_update(), and set_hangup_source_and_cause().

◆ ast_set_party_id_all()

void ast_set_party_id_all ( struct ast_set_party_id update_id)

Set the update marker to update all information of a corresponding party id.

Since
11.0
Parameters
update_idThe update marker for a corresponding party id.

Definition at line 1737 of file channel.c.

1738{
1739 update_id->name = 1;
1740 update_id->number = 1;
1741 update_id->subaddress = 1;
1742}
unsigned char subaddress
Definition channel.h:369
unsigned char number
Definition channel.h:367
unsigned char name
Definition channel.h:365

References ast_set_party_id::name, ast_set_party_id::number, and ast_set_party_id::subaddress.

Referenced by set_redirecting().

◆ ast_set_read_format()

int ast_set_read_format ( struct ast_channel chan,
struct ast_format format 
)

Sets read format on channel chan.

Parameters
chanchannel to change
formatformat to set for reading
Returns
Returns 0 on success, -1 on failure

Definition at line 5819 of file channel.c.

5820{
5822 int res;
5823
5824 ast_assert(format != NULL);
5825
5826 if (!cap) {
5827 return -1;
5828 }
5829 ast_format_cap_append(cap, format, 0);
5830
5831 res = set_format(chan, cap, 0, 0);
5832
5833 ao2_cleanup(cap);
5834 return res;
5835}
static int set_format(struct ast_channel *chan, struct ast_format_cap *cap_set, const int direction, int interleaved_stereo)
Definition channel.c:5650

References ao2_cleanup, ast_assert, ast_format_cap_alloc, ast_format_cap_append, AST_FORMAT_CAP_FLAG_DEFAULT, NULL, and set_format().

Referenced by __ast_play_and_record(), adsi_transmit_message_full(), alarmreceiver_exec(), ast_bridge_channel_restore_formats(), ast_channel_make_compatible_helper(), audiosocket_exec(), background_detect_exec(), build_conf(), channel_do_masquerade(), conf_run(), dictate_exec(), do_waiting(), eagi_exec(), fax_detect_framehook(), fax_gateway_framehook(), generic_fax_exec(), handle_recordfile(), handle_speechrecognize(), holding_bridge_join(), isAnsweringMachine(), jack_exec(), jingle_interpret_content(), jingle_read(), measurenoise(), meetme_menu_admin_extended(), old_milliwatt_exec(), ooh323_new(), ooh323_rtp_read(), ooh323_set_read_format(), ooh323_set_write_format(), record_exec(), set_caps(), set_read_to_slin(), socket_process_helper(), speech_background(), and unistim_rtp_read().

◆ ast_set_read_format_from_cap()

int ast_set_read_format_from_cap ( struct ast_channel chan,
struct ast_format_cap formats 
)

Sets read format on channel chan from capabilities Set read format for channel to whichever component of "format" is best.

Parameters
chanchannel to change
formatsnew formats to pick from for reading
Returns
Returns 0 on success, -1 on failure

Definition at line 5837 of file channel.c.

5838{
5839 return set_format(chan, cap, 0, 0);
5840}

References set_format().

◆ ast_set_read_format_path()

int ast_set_read_format_path ( struct ast_channel chan,
struct ast_format raw_format,
struct ast_format core_format 
)

Set specific read path on channel.

Since
13.4.0
Parameters
chanChannel to setup read path.
raw_formatFormat to expect from the channel driver.
core_formatWhat the core wants to read.
Precondition
chan is locked
Return values
0on success.
-1on error.

Definition at line 5545 of file channel.c.

5546{
5547 struct ast_trans_pvt *trans_old;
5548 struct ast_trans_pvt *trans_new;
5549
5552 /* Nothing to setup */
5553 return 0;
5554 }
5555
5556 ast_debug(1, "Channel %s setting read format path: %s -> %s\n",
5557 ast_channel_name(chan),
5558 ast_format_get_name(raw_format),
5559 ast_format_get_name(core_format));
5560
5561 /* Setup new translation path. */
5562 if (ast_format_cmp(raw_format, core_format) != AST_FORMAT_CMP_EQUAL) {
5563 trans_new = ast_translator_build_path(core_format, raw_format);
5564 if (!trans_new) {
5565 return -1;
5566 }
5567 } else {
5568 /* No translation needed. */
5569 trans_new = NULL;
5570 }
5571 trans_old = ast_channel_readtrans(chan);
5572 if (trans_old) {
5573 ast_translator_free_path(trans_old);
5574 }
5575 ast_channel_readtrans_set(chan, trans_new);
5576 ast_channel_set_rawreadformat(chan, raw_format);
5577 ast_channel_set_readformat(chan, core_format);
5578 return 0;
5579}
void ast_channel_readtrans_set(struct ast_channel *chan, struct ast_trans_pvt *value)
Default structure for translators, with the basic fields and buffers, all allocated as part of the sa...
Definition translate.h:213
struct ast_trans_pvt * ast_translator_build_path(struct ast_format *dest, struct ast_format *source)
Builds a translator path Build a path (possibly NULL) from source to dest.
Definition translate.c:543

References ast_channel_name(), ast_channel_rawreadformat(), ast_channel_readformat(), ast_channel_readtrans(), ast_channel_readtrans_set(), ast_channel_set_rawreadformat(), ast_channel_set_readformat(), ast_debug, ast_format_cmp(), AST_FORMAT_CMP_EQUAL, ast_format_get_name(), ast_translator_build_path(), ast_translator_free_path(), and NULL.

Referenced by __ast_read(), chan_pjsip_read_stream(), set_softmix_bridge_data(), and softmix_bridge_write_voice().

◆ ast_set_variables()

void ast_set_variables ( struct ast_channel chan,
struct ast_variable vars 
)

adds a list of channel variables to a channel

Parameters
chanthe channel
varsa linked list of variables
Precondition
chan is locked

Variable names can be for a regular channel variable or a dialplan function that has the ability to be written to.

Definition at line 8221 of file channel.c.

8222{
8223 struct ast_variable *cur;
8224
8225 for (cur = vars; cur; cur = cur->next) {
8226 pbx_builtin_setvar_helper(chan, cur->name, cur->value);
8227 }
8228}
struct ast_variable * next

References ast_variable::name, ast_variable::next, pbx_builtin_setvar_helper(), and ast_variable::value.

Referenced by __ast_request_and_dial(), ari_channels_handle_originate_with_id(), ast_ari_channels_create(), ast_call_forward(), ast_pbx_outgoing_exten_predial(), and pbx_outgoing_attempt().

◆ ast_set_write_format()

int ast_set_write_format ( struct ast_channel chan,
struct ast_format format 
)

Sets write format on channel chan.

Parameters
chanchannel to change
formatformat to set for writing
Returns
Returns 0 on success, -1 on failure

Definition at line 5860 of file channel.c.

5861{
5863 int res;
5864
5865 ast_assert(format != NULL);
5866
5867 if (!cap) {
5868 return -1;
5869 }
5870 ast_format_cap_append(cap, format, 0);
5871
5872 res = set_format(chan, cap, 1, 0);
5873
5874 ao2_cleanup(cap);
5875 return res;
5876}

References ao2_cleanup, ast_assert, ast_format_cap_alloc, ast_format_cap_append, AST_FORMAT_CAP_FLAG_DEFAULT, NULL, and set_format().

Referenced by adsi_transmit_message_full(), alarmreceiver_exec(), ast_bridge_channel_restore_formats(), ast_channel_make_compatible_helper(), ast_channel_start_silence_generator(), ast_channel_stop_silence_generator(), ast_stopstream(), ast_write_stream(), audiosocket_exec(), broadcast_exec(), build_conf(), channel_do_masquerade(), chanspy_exec(), conf_run(), dahdiscan_exec(), extenspy_exec(), fax_gateway_framehook(), generic_fax_exec(), handle_participant_join(), jack_exec(), jingle_interpret_content(), jingle_read(), linear_alloc(), linear_release(), meetme_menu_admin_extended(), moh_alloc(), moh_files_release(), moh_files_write_format_change(), moh_release(), mp3_exec(), old_milliwatt_exec(), ooh323_new(), ooh323_rtp_read(), ooh323_set_write_format(), ooh323_write(), participant_reaction_announcer_join(), playtones_alloc(), playtones_release(), send_waveform_to_channel(), set_caps(), set_softmix_bridge_data(), socket_process_helper(), tonepair_alloc(), tonepair_release(), and unistim_rtp_read().

◆ ast_set_write_format_from_cap()

int ast_set_write_format_from_cap ( struct ast_channel chan,
struct ast_format_cap formats 
)

Sets write format on channel chan Set write format for channel to whichever component of "format" is best.

Parameters
chanchannel to change
formatsnew formats to pick from for writing
Returns
Returns 0 on success, -1 on failure

Definition at line 5878 of file channel.c.

5879{
5880 return set_format(chan, cap, 1, 0);
5881}

References set_format().

Referenced by openstream_internal().

◆ ast_set_write_format_interleaved_stereo()

int ast_set_write_format_interleaved_stereo ( struct ast_channel chan,
struct ast_format format 
)

Sets write format for a channel. All internal data will than be handled in an interleaved format. (needed by binaural opus)

Parameters
chanchannel to change
formatformat to set for writing
Returns
Returns 0 on success, -1 on failure

Definition at line 5842 of file channel.c.

5843{
5845 int res;
5846
5847 ast_assert(format != NULL);
5848
5849 if (!cap) {
5850 return -1;
5851 }
5852 ast_format_cap_append(cap, format, 0);
5853
5854 res = set_format(chan, cap, 1, 1);
5855
5856 ao2_cleanup(cap);
5857 return res;
5858}

References ao2_cleanup, ast_assert, ast_format_cap_alloc, ast_format_cap_append, AST_FORMAT_CAP_FLAG_DEFAULT, NULL, and set_format().

Referenced by set_softmix_bridge_data(), and softmix_bridge_unsuspend().

◆ ast_set_write_format_path()

int ast_set_write_format_path ( struct ast_channel chan,
struct ast_format core_format,
struct ast_format raw_format 
)

Set specific write path on channel.

Since
13.13.0
Parameters
chanChannel to setup write path.
core_formatWhat the core wants to write.
raw_formatRaw write format.
Precondition
chan is locked
Return values
0on success.
-1on error.

Definition at line 5581 of file channel.c.

5582{
5583 struct ast_trans_pvt *trans_old;
5584 struct ast_trans_pvt *trans_new;
5585
5588 /* Nothing to setup */
5589 return 0;
5590 }
5591
5592 ast_debug(1, "Channel %s setting write format path: %s -> %s\n",
5593 ast_channel_name(chan),
5594 ast_format_get_name(core_format),
5595 ast_format_get_name(raw_format));
5596
5597 /* Setup new translation path. */
5598 if (ast_format_cmp(raw_format, core_format) != AST_FORMAT_CMP_EQUAL) {
5599 trans_new = ast_translator_build_path(raw_format, core_format);
5600 if (!trans_new) {
5601 return -1;
5602 }
5603 } else {
5604 /* No translation needed. */
5605 trans_new = NULL;
5606 }
5607 trans_old = ast_channel_writetrans(chan);
5608 if (trans_old) {
5609 ast_translator_free_path(trans_old);
5610 }
5611 ast_channel_writetrans_set(chan, trans_new);
5612 ast_channel_set_rawwriteformat(chan, raw_format);
5613 ast_channel_set_writeformat(chan, core_format);
5614 return 0;
5615}
void ast_channel_writetrans_set(struct ast_channel *chan, struct ast_trans_pvt *value)

References ast_channel_name(), ast_channel_rawwriteformat(), ast_channel_set_rawwriteformat(), ast_channel_set_writeformat(), ast_channel_writeformat(), ast_channel_writetrans(), ast_channel_writetrans_set(), ast_debug, ast_format_cmp(), AST_FORMAT_CMP_EQUAL, ast_format_get_name(), ast_translator_build_path(), ast_translator_free_path(), and NULL.

Referenced by chan_pjsip_read_stream().

◆ ast_setstate()

int ast_setstate ( struct ast_channel chan,
enum  ast_channel_state 
)

Change the state of a channel.

Precondition
chan is locked

Definition at line 7460 of file channel.c.

7461{
7462 int oldstate = ast_channel_state(chan);
7463 char name[AST_CHANNEL_NAME], *dashptr;
7464
7465 if (oldstate == state)
7466 return 0;
7467
7468 ast_copy_string(name, ast_channel_name(chan), sizeof(name));
7469 if ((dashptr = strrchr(name, '-'))) {
7470 *dashptr = '\0';
7471 }
7472
7474
7476
7477 /* We have to pass AST_DEVICE_UNKNOWN here because it is entirely possible that the channel driver
7478 * for this channel is using the callback method for device state. If we pass in an actual state here
7479 * we override what they are saying the state is and things go amuck. */
7481
7482 return 0;
7483}

References ast_channel_flags(), AST_CHANNEL_NAME, ast_channel_name(), ast_channel_publish_snapshot(), ast_channel_state_set(), ast_copy_string(), AST_DEVICE_UNKNOWN, AST_DEVSTATE_CACHABLE, ast_devstate_changed_literal(), AST_DEVSTATE_NOT_CACHABLE, AST_FLAG_DISABLE_DEVSTATE_CACHE, ast_test_flag, and name.

Referenced by __analog_handle_event(), __analog_ss_thread(), __ast_read(), __dahdi_exception(), analog_answer(), analog_call(), analog_callwaiting_deluxe(), analog_exception(), analog_ss_thread(), ast_raw_answer_with_stream_topology(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), chan_pjsip_answer(), chan_pjsip_incoming_response(), console_answer(), dahdi_answer(), dahdi_call(), dahdi_handle_event(), dahdi_indicate(), dahdi_read(), handle_response_ciev(), iax2_call(), indicate_busy(), indicate_congestion(), jingle_action_session_info(), jingle_action_session_initiate(), jingle_call(), mbl_hangup(), my_set_waitingfordt(), onAlerting(), onProgress(), ooh323_answer(), ooh323_new(), refer_incoming_invite_request(), unistim_answer(), unistim_call(), unistim_new(), unistim_ss(), and unreal_queue_frame().

◆ ast_settimeout()

int ast_settimeout ( struct ast_channel c,
unsigned int  rate,
int(*)(const void *data)  func,
void *  data 
)

Enable or disable timer ticks for a channel.

Parameters
cchannel
ratenumber of timer ticks per second
funccallback function
data

If timers are supported, force a scheduled expiration on the timer fd, at which point we call the callback function / data

Note
Call this function with a rate of 0 to turn off the timer ticks
Version
1.6.1 changed samples parameter to rate, accommodates new timing methods

Definition at line 3218 of file channel.c.

3219{
3220 return ast_settimeout_full(c, rate, func, data, 0);
3221}
int ast_settimeout_full(struct ast_channel *c, unsigned int rate, int(*func)(const void *data), void *data, unsigned int is_ao2_obj)
Definition channel.c:3223

References ast_settimeout_full(), c, and ast_channel::data.

Referenced by ast_activate_generator(), ast_readaudio_callback(), deactivate_generator_nolock(), and filestream_close().

◆ ast_settimeout_full()

int ast_settimeout_full ( struct ast_channel c,
unsigned int  rate,
int(*)(const void *data)  func,
void *  data,
unsigned int  is_ao2_obj 
)

Definition at line 3223 of file channel.c.

3224{
3225 int res;
3226 unsigned int real_rate = rate, max_rate;
3228
3230
3231 if (ast_channel_timingfd(c) == -1) {
3233 return -1;
3234 }
3235
3236 if (!func) {
3237 rate = 0;
3238 data = NULL;
3239 }
3240
3241 if (rate && rate > (max_rate = ast_timer_get_max_rate(timer))) {
3242 real_rate = max_rate;
3243 }
3244
3245 ast_debug(3, "Scheduling timer at (%u requested / %u actual) timer ticks per second\n", rate, real_rate);
3246
3247 res = ast_timer_set_rate(timer, real_rate);
3248
3251 }
3252
3255
3256 if (data && is_ao2_obj) {
3257 ao2_ref(data, 1);
3259 } else {
3261 }
3262
3263 if (func == NULL && rate == 0 && ast_channel_fdno(c) == AST_TIMING_FD) {
3264 /* Clearing the timing func and setting the rate to 0
3265 * means that we don't want to be reading from the timingfd
3266 * any more. Setting c->fdno to -1 means we won't have any
3267 * errant reads from the timingfd, meaning we won't potentially
3268 * miss any important frames.
3269 */
3271 }
3272
3274
3275 return res;
3276}
void ast_channel_timingdata_set(struct ast_channel *chan, void *value)
void ast_channel_timingfunc_set(struct ast_channel *chan, ast_timing_func_t value)
void * data
Definition timing.c:55
unsigned int ast_timer_get_max_rate(const struct ast_timer *handle)
Get maximum rate supported for a timer.
Definition timing.c:191

References ao2_ref, ast_channel_fdno(), ast_channel_fdno_set(), ast_channel_flags(), ast_channel_lock, ast_channel_timer(), ast_channel_timingdata(), ast_channel_timingdata_set(), ast_channel_timingfd(), ast_channel_timingfunc_set(), ast_channel_unlock, ast_clear_flag, ast_debug, AST_FLAG_TIMINGDATA_IS_AO2_OBJ, ast_set_flag, ast_test_flag, ast_timer_get_max_rate(), ast_timer_set_rate(), AST_TIMING_FD, c, ast_timer::data, NULL, and timer.

Referenced by ast_readaudio_callback(), and ast_settimeout().

◆ ast_softhangup()

int ast_softhangup ( struct ast_channel chan,
int  cause 
)

Softly hangup a channel, lock.

Softly hangup up a channel.

Definition at line 2462 of file channel.c.

2463{
2464 RAII_VAR(struct ast_json *, blob, NULL, ast_json_unref);
2465 int res;
2466 int tech_cause = 0;
2467 struct ast_rtp_glue *glue;
2468 struct ast_rtp_instance *rtp = NULL;
2469 const struct ast_channel_tech *tech;
2470
2471 /*
2472 * Only hold the channel lock long enough to get the rtp instance.
2473 * glue->get_rtp_info() will bump the refcount on it.
2474 */
2475 ast_channel_lock(chan);
2476 tech = ast_channel_tech(chan);
2477 glue = ast_rtp_instance_get_glue(tech->type);
2478 if (glue) {
2479 glue->get_rtp_info(chan, &rtp);
2480 }
2481 ast_channel_unlock(chan);
2482
2483 /*
2484 * If this channel is in a bridge, ast_rtp_instance_set_stats_vars() will
2485 * attempt to lock the bridge peer as well as this channel. This can cause
2486 * a lock inversion if we already have this channel locked and another
2487 * thread tries to set bridge variables on the peer because it will have
2488 * locked the peer first, then this channel. For this reason, we must
2489 * NOT have the channel locked when we call ast_rtp_instance_set_stats_vars().
2490 * This should be safe since glue->get_rtp_info() will have bumped the
2491 * refcount on the rtp instance so it can't go away while the channel
2492 * is unlocked.
2493 */
2494 if (rtp) {
2496 ao2_ref(rtp, -1);
2497 }
2498
2499 /*
2500 * Now it's safe to lock the channel again.
2501 */
2502 ast_channel_lock(chan);
2503
2504 res = ast_softhangup_nolock(chan, cause);
2505 blob = ast_json_pack("{s: i, s: b}",
2506 "cause", cause,
2507 "soft", 1);
2508
2509 tech_cause = ast_channel_tech_hangupcause(chan);
2510 if (tech_cause) {
2511 ast_json_object_set(blob, "tech_cause", ast_json_integer_create(tech_cause));
2512 }
2513
2515 ast_channel_unlock(chan);
2516
2517 return res;
2518}
void ast_rtp_instance_set_stats_vars(struct ast_channel *chan, struct ast_rtp_instance *instance)
Set standard statistics from an RTP instance on a channel.
struct ast_rtp_glue * ast_rtp_instance_get_glue(const char *type)
Get the RTP glue that binds a channel to the RTP engine.
enum ast_rtp_glue_result(* get_rtp_info)(struct ast_channel *chan, struct ast_rtp_instance **instance)
Callback for retrieving the RTP instance carrying audio.
Definition rtp_engine.h:787

References ao2_ref, ast_channel_hangup_request_type(), ast_channel_lock, ast_channel_publish_blob(), ast_channel_tech_hangupcause(), ast_channel_unlock, ast_json_integer_create(), ast_json_object_set(), ast_json_pack(), ast_json_unref(), ast_rtp_instance_get_glue(), ast_rtp_instance_set_stats_vars(), ast_softhangup_nolock(), ast_rtp_glue::get_rtp_info, NULL, RAII_VAR, and ast_channel_tech::type.

Referenced by __analog_handle_event(), __ast_module_user_hangup_all(), __ast_pbx_run(), __unload_module(), after_bridge_move_channel(), after_bridge_move_channel_fail(), agent_logoff_request(), agents_sweep(), analog_attempt_transfer(), ast_ari_channels_hangup(), ast_bridge_transfer_attended(), ast_channel_softhangup_cb(), ast_dial_join(), attempt_transfer(), blond_nonfinal_exit(), bridge_channel_attended_transfer(), cc_generic_agent_stop_ringing(), channel_hangup_matches(), conf_free(), dahdi_handle_event(), handle_hangup(), handle_softhangup(), hangup_channel(), retransfer_exit(), rtp_check_timeout(), sla_handle_hold_event(), softhangup_exec(), stasis_app_bridge_moh_stop(), and unload_module().

◆ ast_softhangup_all()

void ast_softhangup_all ( void  )

Soft hangup all active channels.

Since
13.3.0

Definition at line 494 of file channel.c.

495{
497}
struct ast_channel * ast_channel_callback(ao2_callback_data_fn *cb_fn, void *arg, void *data, int ao2_flags)
Call a function with every active channel.
Definition channel.c:1336
static int ast_channel_softhangup_cb(void *obj, void *arg, void *data, int flags)
Definition channel.c:485

References ast_channel_callback(), ast_channel_softhangup_cb(), and NULL.

Referenced by can_safely_quit().

◆ ast_softhangup_nolock()

int ast_softhangup_nolock ( struct ast_channel chan,
int  cause 
)

Softly hangup a channel, don't lock.

Softly hangup up a channel (no channel lock)

Definition at line 2449 of file channel.c.

2450{
2451 ast_debug(1, "Soft-Hanging (%#04x) up channel '%s'\n", (unsigned)cause, ast_channel_name(chan));
2452 /* Inform channel driver that we need to be hung up, if it cares */
2455 /* Interrupt any poll call or such */
2457 pthread_kill(ast_channel_blocker(chan), SIGURG);
2458 return 0;
2459}

References ast_channel_blocker(), ast_channel_flags(), ast_channel_name(), ast_channel_softhangup_internal_flag_add(), ast_debug, AST_FLAG_BLOCKING, ast_null_frame, ast_queue_frame(), and ast_test_flag.

Referenced by __analog_handle_event(), app_control_dial(), ast_async_goto(), ast_bridge_join(), ast_channel_softhangup_withcause_locked(), ast_pbx_h_exten_run(), ast_pbx_hangup_handler_run(), ast_softhangup(), attempt_transfer(), dahdi_softhangup_all(), do_monitor(), gosub_run(), internal_bridge_after_cb(), jingle_indicate(), and pbx_builtin_hangup().

◆ ast_state2str()

const char * ast_state2str ( enum ast_channel_state  state)

Gives the string form of a given channel state.

Parameters
statestate to get the name of
Returns
the text form of the binary state given
Note
This function is not reentrant.

Definition at line 637 of file channel.c.

638{
639 char *buf;
640
641 switch (state) {
642 case AST_STATE_DOWN:
643 return "Down";
645 return "Rsrvd";
647 return "OffHook";
649 return "Dialing";
650 case AST_STATE_RING:
651 return "Ring";
653 return "Ringing";
654 case AST_STATE_UP:
655 return "Up";
656 case AST_STATE_BUSY:
657 return "Busy";
659 return "Dialing Offhook";
661 return "Pre-ring";
662 case AST_STATE_MUTE:
663 return "Mute";
664 default:
665 if (!(buf = ast_threadstorage_get(&state2str_threadbuf, STATE2STR_BUFSIZE)))
666 return "Unknown";
667 snprintf(buf, STATE2STR_BUFSIZE, "Unknown (%u)", state);
668 return buf;
669 }
670}
#define STATE2STR_BUFSIZE
Definition channel.c:102
@ AST_STATE_MUTE
@ AST_STATE_DIALING_OFFHOOK
@ AST_STATE_PRERING
@ AST_STATE_OFFHOOK
@ AST_STATE_BUSY
@ AST_STATE_DIALING
@ AST_STATE_RESERVED
void * ast_threadstorage_get(struct ast_threadstorage *ts, size_t init_size)
Retrieve thread storage.

References AST_STATE_BUSY, AST_STATE_DIALING, AST_STATE_DIALING_OFFHOOK, AST_STATE_DOWN, AST_STATE_MUTE, AST_STATE_OFFHOOK, AST_STATE_PRERING, AST_STATE_RESERVED, AST_STATE_RING, AST_STATE_RINGING, AST_STATE_UP, ast_threadstorage_get(), buf, and STATE2STR_BUFSIZE.

Referenced by ast_channel_snapshot_to_json(), ast_manager_build_channel_state_string_prefix(), ast_raw_answer_with_stream_topology(), cli_channel_print_body(), func_channel_read(), handle_chanlist(), handle_showchan(), and serialize_showchan().

◆ ast_str2cause()

int ast_str2cause ( const char *  name)

Convert a symbolic hangup cause to number.

Convert the string form of a cause code to a number.

Definition at line 626 of file channel.c.

627{
628 int x;
629
630 for (x = 0; x < ARRAY_LEN(causes); x++)
631 if (!strncasecmp(causes[x].name, name, strlen(causes[x].name)))
632 return causes[x].cause;
633
634 return -1;
635}

References ARRAY_LEN, causes, and name.

Referenced by dial_exec_full(), and pbx_builtin_hangup().

◆ AST_THREADSTORAGE_CUSTOM_SCOPE()

AST_THREADSTORAGE_CUSTOM_SCOPE ( state2str_threadbuf  ,
NULL  ,
ast_free_ptr  ,
static   
)

◆ AST_THREADSTORAGE_RAW()

AST_THREADSTORAGE_RAW ( in_intercept_routine  )

Storage to determine if the current thread is running an intercept dialplan routine.

◆ ast_tonepair()

int ast_tonepair ( struct ast_channel chan,
int  freq1,
int  freq2,
int  duration,
int  vol 
)

Play a tone pair for a given amount of time

Definition at line 7674 of file channel.c.

7675{
7676 int res;
7677
7678 if ((res = ast_tonepair_start(chan, freq1, freq2, duration, vol)))
7679 return res;
7680
7681 /* Give us some wiggle room */
7682 while (ast_channel_generatordata(chan) && ast_waitfor(chan, 100) >= 0) {
7683 struct ast_frame *f = ast_read(chan);
7684 if (f)
7685 ast_frfree(f);
7686 else
7687 return -1;
7688 }
7689 return 0;
7690}
int ast_tonepair_start(struct ast_channel *chan, int freq1, int freq2, int duration, int vol)
Definition channel.c:7656

References ast_channel_generatordata(), ast_frfree, ast_read(), ast_tonepair_start(), ast_waitfor(), tonepair_def::duration, tonepair_def::freq1, tonepair_def::freq2, and tonepair_def::vol.

Referenced by zapateller_exec().

◆ ast_tonepair_start()

int ast_tonepair_start ( struct ast_channel chan,
int  freq1,
int  freq2,
int  duration,
int  vol 
)

Start a tone going

Definition at line 7656 of file channel.c.

7657{
7658 struct tonepair_def d = { 0, };
7659
7660 d.freq1 = freq1;
7661 d.freq2 = freq2;
7662 d.duration = duration;
7663 d.vol = (vol < 1) ? 8192 : vol; /* force invalid to 8192 */
7664 if (ast_activate_generator(chan, &tonepair, &d))
7665 return -1;
7666 return 0;
7667}
static struct ast_generator tonepair
Definition channel.c:7650

References ast_activate_generator(), d, tonepair_def::duration, tonepair_def::freq1, tonepair_def::freq2, tonepair, and tonepair_def::vol.

Referenced by ast_tonepair(), pbx_builtin_waitexten(), play_dialtone(), and sendnoise().

◆ ast_tonepair_stop()

void ast_tonepair_stop ( struct ast_channel chan)

Stop a tone from playing

Definition at line 7669 of file channel.c.

7670{
7672}

References ast_deactivate_generator().

Referenced by sendnoise().

◆ ast_transfer()

int ast_transfer ( struct ast_channel chan,
char *  dest 
)

Transfer a call to dest, if the channel supports transfer.

Transfer a channel (if supported).

Called by:

  • app_transfer
  • the manager interface

Definition at line 6542 of file channel.c.

6543{
6544 int protocol;
6545 return ast_transfer_protocol(chan, dest, &protocol);
6546}
int ast_transfer_protocol(struct ast_channel *chan, char *dest, int *protocol)
Transfer a call to dest, if the channel supports transfer.
Definition channel.c:6555

References ast_transfer_protocol().

Referenced by app_control_redirect().

◆ ast_transfer_protocol()

int ast_transfer_protocol ( struct ast_channel chan,
char *  dest,
int *  protocol 
)

Transfer a call to dest, if the channel supports transfer.

Transfer a channel (if supported) receieve protocol result.

Called by:

  • app_transfer
  • the manager interface

Definition at line 6555 of file channel.c.

6556{
6557 int res = -1;
6558
6559 if (protocol) {
6560 *protocol = 0;
6561 }
6562
6563 /* Stop if we're a zombie or need a soft hangup */
6564 ast_channel_lock(chan);
6566 if (ast_channel_tech(chan)->transfer) {
6567 res = ast_channel_tech(chan)->transfer(chan, dest);
6568 if (!res)
6569 res = 1;
6570 } else
6571 res = 0;
6572 }
6573 ast_channel_unlock(chan);
6574
6575 if (res <= 0) {
6576 return res;
6577 }
6578
6579 for (;;) {
6580 struct ast_frame *fr;
6581
6582 res = ast_waitfor(chan, -1);
6583
6584 if (res < 0 || !(fr = ast_read(chan))) {
6585 res = -1;
6586 break;
6587 }
6588
6591
6592 if (*message == AST_TRANSFER_SUCCESS) {
6593 res = 1;
6594 } else {
6595 res = -1;
6596 /* Message can contain a protocol specific code
6597 AST_TRANSFER_SUCCESS indicates success
6598 Else, failure. Protocol will be set to the failure reason.
6599 SIP example, 0 is success, else error code 3xx-6xx */
6600 if (protocol) {
6601 *protocol = *message;
6602 }
6603 }
6604
6605 ast_frfree(fr);
6606 break;
6607 }
6608
6609 ast_frfree(fr);
6610 }
6611
6612 return res;
6613}
static int transfer(void *data)
@ AST_TRANSFER_SUCCESS
@ AST_CONTROL_TRANSFER
int(*const transfer)(struct ast_channel *chan, const char *newdest)
Blind transfer other side (see app_transfer.c and ast_transfer()
Definition channel.h:803

References ast_channel_flags(), ast_channel_lock, ast_channel_unlock, ast_check_hangup(), AST_CONTROL_TRANSFER, AST_FLAG_ZOMBIE, AST_FRAME_CONTROL, ast_frfree, ast_read(), ast_test_flag, AST_TRANSFER_SUCCESS, ast_waitfor(), ast_frame::data, ast_frame::frametype, ast_frame_subclass::integer, ast_frame::ptr, ast_frame::subclass, transfer(), and ast_channel_tech::transfer.

Referenced by ast_transfer(), and transfer_exec().

◆ ast_transfercapability2str()

char * ast_transfercapability2str ( int  transfercapability) const

Gives the string form of a given transfer capability.

Parameters
transfercapabilitytransfer capability to get the name of
Returns
the text form of the binary transfer capability

Definition at line 673 of file channel.c.

674{
675 switch (transfercapability) {
677 return "SPEECH";
679 return "DIGITAL";
681 return "RESTRICTED_DIGITAL";
683 return "3K1AUDIO";
685 return "DIGITAL_W_TONES";
687 return "VIDEO";
688 default:
689 return "UNKNOWN";
690 }
691}
#define AST_TRANS_CAP_RESTRICTED_DIGITAL
Definition transcap.h:37
#define AST_TRANS_CAP_DIGITAL
Definition transcap.h:36
#define AST_TRANS_CAP_DIGITAL_W_TONES
Definition transcap.h:40
#define AST_TRANS_CAP_SPEECH
Definition transcap.h:35
#define AST_TRANS_CAP_3_1K_AUDIO
Definition transcap.h:38
#define AST_TRANS_CAP_VIDEO
Definition transcap.h:41

References AST_TRANS_CAP_3_1K_AUDIO, AST_TRANS_CAP_DIGITAL, AST_TRANS_CAP_DIGITAL_W_TONES, AST_TRANS_CAP_RESTRICTED_DIGITAL, AST_TRANS_CAP_SPEECH, and AST_TRANS_CAP_VIDEO.

◆ ast_undestroyed_channels()

int ast_undestroyed_channels ( void  )
Returns
the number of channels not yet destroyed

Definition at line 505 of file channel.c.

506{
508}

References ast_atomic_fetchadd_int(), and chancount.

Referenced by wait_for_channels_to_die().

◆ ast_uninstall_music_functions()

void ast_uninstall_music_functions ( void  )

Definition at line 7833 of file channel.c.

7834{
7838}

References ast_moh_cleanup_ptr, ast_moh_start_ptr, ast_moh_stop_ptr, and NULL.

Referenced by unload_module().

◆ ast_unref_namedgroups()

struct ast_namedgroups * ast_unref_namedgroups ( struct ast_namedgroups *  groups)

◆ ast_waitfor()

int ast_waitfor ( struct ast_channel chan,
int  ms 
)

Wait for input on a channel.

Parameters
chanchannel to wait on
mslength of time to wait on the channel

Wait for input on a channel for a given # of milliseconds (<0 for indefinite).

Return values
<0 on failure
0if nothing ever arrived
the# of ms remaining otherwise

Definition at line 3200 of file channel.c.

3201{
3202 if (ms < 0) {
3203 do {
3204 ms = 100000;
3205 ast_waitfor_nandfds(&c, 1, NULL, 0, NULL, NULL, &ms);
3206 } while (!ms);
3207 } else {
3208 ast_waitfor_nandfds(&c, 1, NULL, 0, NULL, NULL, &ms);
3209 }
3210 return ms;
3211}
struct ast_channel * ast_waitfor_nandfds(struct ast_channel **c, int n, int *fds, int nfds, int *exception, int *outfd, int *ms)
Wait for x amount of time on a file descriptor to have input.
Definition channel.c:3026

References ast_waitfor_nandfds(), c, and NULL.

Referenced by __adsi_transmit_messages(), __analog_ss_thread(), __ast_answer(), __ast_play_and_record(), __ast_request_and_dial(), adsi_careful_send(), analog_ss_thread(), ast_control_tone(), ast_recvtext(), ast_tonepair(), ast_transfer_protocol(), background_detect_exec(), channel_spy(), conf_flush(), dial_trunk(), dictate_exec(), disa_exec(), disable_t38(), do_broadcast(), do_waiting(), echo_exec(), handle_recordfile(), handle_speechrecognize(), isAnsweringMachine(), jack_exec(), launch_asyncagi(), measurenoise(), moh_channel_thread(), mp3_exec(), read_mf_digits(), read_sf_digits(), receive_dtmf_digits(), receivefax_t38_init(), record_exec(), recordthread(), safe_sleep_conditional(), scan_exec(), send_waveform_to_channel(), sendfax_t38_init(), speech_background(), stasis_app_exec(), stream_echo_perform(), wait_exec(), wait_for_hangup(), waitforring_exec(), and waitstream_core().

◆ ast_waitfor_n()

struct ast_channel * ast_waitfor_n ( struct ast_channel **  chan,
int  n,
int *  ms 
)

Waits for input on a group of channels Wait for input on an array of channels for a given # of milliseconds.

Returns
Return channel with activity, or NULL if none has activity.
Parameters
chanan array of pointers to channels
nnumber of channels that are to be waited upon
mstime "ms" is modified in-place, if applicable

Definition at line 3195 of file channel.c.

3196{
3197 return ast_waitfor_nandfds(c, n, NULL, 0, NULL, NULL, ms);
3198}

References ast_waitfor_nandfds(), c, and NULL.

Referenced by autoservice_run(), dial_exec_full(), monitor_dial(), wait_for_answer(), wait_for_answer(), and wait_for_winner().

◆ ast_waitfor_n_fd()

int ast_waitfor_n_fd ( int *  fds,
int  n,
int *  ms,
int *  exception 
)

Wait for x amount of time on a file descriptor to have input.

Waits for input on an fd.

Definition at line 3018 of file channel.c.

3019{
3020 int winner = -1;
3021 ast_waitfor_nandfds(NULL, 0, fds, n, exception, &winner, ms);
3022 return winner;
3023}

References ast_waitfor_nandfds(), and NULL.

Referenced by dundi_lookup_internal(), dundi_precache_internal(), rfcomm_wait(), and softmix_mixing_loop().

◆ ast_waitfor_nandfds()

struct ast_channel * ast_waitfor_nandfds ( struct ast_channel **  c,
int  n,
int *  fds,
int  nfds,
int *  exception,
int *  outfd,
int *  ms 
)

Wait for x amount of time on a file descriptor to have input.

Waits for activity on a group of channels.

Definition at line 3026 of file channel.c.

3028{
3029 struct timeval start = { 0 , 0 };
3030 struct pollfd *pfds = NULL;
3031 int res;
3032 long rms;
3033 int x, y, max;
3034 int sz = nfds;
3035 struct timeval now = { 0, 0 };
3036 struct timeval whentohangup = { 0, 0 }, diff;
3037 struct ast_channel *winner = NULL;
3038 struct fdmap {
3039 int chan;
3040 int fdno;
3041 } *fdmap = NULL;
3042
3043 if (outfd) {
3044 *outfd = -99999;
3045 }
3046 if (exception) {
3047 *exception = 0;
3048 }
3049
3050 for (x = 0; x < n; x++) {
3051 ast_channel_lock(c[x]);
3053 if (ast_tvzero(whentohangup))
3054 now = ast_tvnow();
3055 diff = ast_tvsub(*ast_channel_whentohangup(c[x]), now);
3056 if (diff.tv_sec < 0 || ast_tvzero(diff)) {
3057 ast_test_suite_event_notify("HANGUP_TIME", "Channel: %s", ast_channel_name(c[x]));
3058 /* Should already be hungup */
3061 return c[x];
3062 }
3063 if (ast_tvzero(whentohangup) || ast_tvcmp(diff, whentohangup) < 0)
3064 whentohangup = diff;
3065 }
3066 sz += ast_channel_fd_count(c[x]);
3068 }
3069
3070 if (!sz) {
3071 return NULL;
3072 }
3073
3074 pfds = ast_alloca(sizeof(*pfds) * sz);
3075 fdmap = ast_alloca(sizeof(*fdmap) * sz);
3076
3077 /* Wait full interval */
3078 rms = *ms;
3079 /* INT_MAX, not LONG_MAX, because it matters on 64-bit */
3080 if (!ast_tvzero(whentohangup) && whentohangup.tv_sec < INT_MAX / 1000) {
3081 rms = whentohangup.tv_sec * 1000 + whentohangup.tv_usec / 1000; /* timeout in milliseconds */
3082 if (*ms >= 0 && *ms < rms) { /* original *ms still smaller */
3083 rms = *ms;
3084 }
3085 } else if (!ast_tvzero(whentohangup) && rms < 0) {
3086 /* Tiny corner case... call would need to last >24 days */
3087 rms = INT_MAX;
3088 }
3089 /*
3090 * Build the pollfd array, putting the channels' fds first,
3091 * followed by individual fds. Order is important because
3092 * individual fd's must have priority over channel fds.
3093 */
3094 max = 0;
3095 for (x = 0; x < n; x++) {
3096 ast_channel_lock(c[x]);
3097 for (y = 0; y < ast_channel_fd_count(c[x]); y++) {
3098 fdmap[max].fdno = y; /* fd y is linked to this pfds */
3099 fdmap[max].chan = x; /* channel x is linked to this pfds */
3100 max += ast_add_fd(&pfds[max], ast_channel_fd(c[x], y));
3101 }
3102 CHECK_BLOCKING(c[x]);
3104 }
3105 /* Add the individual fds */
3106 for (x = 0; x < nfds; x++) {
3107 fdmap[max].chan = -1;
3108 max += ast_add_fd(&pfds[max], fds[x]);
3109 }
3110
3111 if (*ms > 0) {
3112 start = ast_tvnow();
3113 }
3114
3115 if (sizeof(int) == 4) { /* XXX fix timeout > 600000 on linux x86-32 */
3116 do {
3117 int kbrms = rms;
3118 if (kbrms > 600000) {
3119 kbrms = 600000;
3120 }
3121 res = ast_poll(pfds, max, kbrms);
3122 if (!res) {
3123 rms -= kbrms;
3124 }
3125 } while (!res && (rms > 0));
3126 } else {
3127 res = ast_poll(pfds, max, rms);
3128 }
3129 for (x = 0; x < n; x++) {
3130 ast_channel_lock(c[x]);
3133 }
3134 if (res < 0) { /* Simulate a timeout if we were interrupted */
3135 if (errno != EINTR) {
3136 *ms = -1;
3137 }
3138 return NULL;
3139 }
3140 if (!ast_tvzero(whentohangup)) { /* if we have a timeout, check who expired */
3141 now = ast_tvnow();
3142 for (x = 0; x < n; x++) {
3144 ast_test_suite_event_notify("HANGUP_TIME", "Channel: %s", ast_channel_name(c[x]));
3146 if (winner == NULL) {
3147 winner = c[x];
3148 }
3149 }
3150 }
3151 }
3152 if (res == 0) { /* no fd ready, reset timeout and done */
3153 *ms = 0; /* XXX use 0 since we may not have an exact timeout. */
3154 return winner;
3155 }
3156 /*
3157 * Then check if any channel or fd has a pending event.
3158 * Remember to check channels first and fds last, as they
3159 * must have priority on setting 'winner'
3160 */
3161 for (x = 0; x < max; x++) {
3162 res = pfds[x].revents;
3163 if (res == 0) {
3164 continue;
3165 }
3166 if (fdmap[x].chan >= 0) { /* this is a channel */
3167 winner = c[fdmap[x].chan]; /* override previous winners */
3168 ast_channel_lock(winner);
3169 if (res & POLLPRI) {
3171 } else {
3173 }
3174 ast_channel_fdno_set(winner, fdmap[x].fdno);
3175 ast_channel_unlock(winner);
3176 } else { /* this is an fd */
3177 if (outfd) {
3178 *outfd = pfds[x].fd;
3179 }
3180 if (exception) {
3181 *exception = (res & POLLPRI) ? -1 : 0;
3182 }
3183 winner = NULL;
3184 }
3185 }
3186 if (*ms > 0) {
3187 *ms -= ast_tvdiff_ms(ast_tvnow(), start);
3188 if (*ms < 0) {
3189 *ms = 0;
3190 }
3191 }
3192 return winner;
3193}
#define ast_alloca(size)
call __builtin_alloca to ensure we get gcc builtin semantics
Definition astmm.h:288
int ast_channel_fd(const struct ast_channel *chan, int which)
int ast_channel_fd_count(const struct ast_channel *chan)
Retrieve the number of file decriptor positions present on the channel.
static int ast_add_fd(struct pollfd *pfd, int fd)
if fd is a valid descriptor, set *pfd with the descriptor
Definition channel.h:2886
#define max(a, b)
Definition f2c.h:198
#define ast_poll(a, b, c)
Definition poll-compat.h:88
int ast_tvcmp(struct timeval _a, struct timeval _b)
Compress two struct timeval instances returning -1, 0, 1 if the first arg is smaller,...
Definition time.h:137
struct timeval ast_tvsub(struct timeval a, struct timeval b)
Returns the difference of two timevals a - b.
Definition extconf.c:2295

References ast_add_fd(), ast_alloca, ast_channel_fd(), ast_channel_fd_count(), ast_channel_fdno_set(), ast_channel_flags(), ast_channel_lock, ast_channel_name(), ast_channel_softhangup_internal_flag_add(), ast_channel_unlock, ast_channel_whentohangup(), ast_clear_flag, AST_FLAG_BLOCKING, AST_FLAG_EXCEPTION, ast_poll, ast_set_flag, AST_SOFTHANGUP_TIMEOUT, ast_test_suite_event_notify, ast_tvcmp(), ast_tvdiff_ms(), ast_tvnow(), ast_tvsub(), ast_tvzero(), c, CHECK_BLOCKING, errno, max, and NULL.

Referenced by ast_waitfor(), ast_waitfor_n(), ast_waitfor_n_fd(), ast_waitfordigit_full(), audiosocket_run(), bridge_channel_wait(), conf_run(), eivr_comm(), generic_fax_exec(), run_agi(), wait_for_signal_or_hangup(), and waitstream_core().

◆ ast_waitfordigit()

int ast_waitfordigit ( struct ast_channel c,
int  ms 
)

◆ ast_waitfordigit_full()

int ast_waitfordigit_full ( struct ast_channel c,
int  ms,
const char *  breakon,
int  audiofd,
int  ctrlfd 
)

Wait for a digit Same as ast_waitfordigit() with audio fd for outputting read audio and ctrlfd to monitor for reading.

Parameters
cchannel to wait for a digit on
mshow many milliseconds to wait (<0 for indefinite).
breakonstring of DTMF digits to break upon or NULL for any.
audiofdaudio file descriptor to write to if audio frames are received
ctrlfdcontrol file descriptor to monitor for reading
Returns
Returns 1 if ctrlfd becomes available

Definition at line 3278 of file channel.c.

3279{
3280 struct timeval start = ast_tvnow();
3281 int ms;
3282
3283 /* Stop if we're a zombie or need a soft hangup */
3285 return -1;
3286
3287 /* Only look for the end of DTMF, don't bother with the beginning and don't emulate things */
3289
3290 /* Wait for a digit, no more than timeout_ms milliseconds total.
3291 * Or, wait indefinitely if timeout_ms is <0.
3292 */
3293 while ((ms = ast_remaining_ms(start, timeout_ms))) {
3294 struct ast_channel *rchan;
3295 int outfd = -1;
3296
3297 errno = 0;
3298 /* While ast_waitfor_nandfds tries to help by reducing the timeout by how much was waited,
3299 * it is unhelpful if it waited less than a millisecond.
3300 */
3301 rchan = ast_waitfor_nandfds(&c, 1, &cmdfd, (cmdfd > -1) ? 1 : 0, NULL, &outfd, &ms);
3302
3303 if (!rchan && outfd < 0 && ms) {
3304 if (errno == 0 || errno == EINTR)
3305 continue;
3306 ast_log(LOG_WARNING, "Wait failed (%s)\n", strerror(errno));
3308 return -1;
3309 } else if (outfd > -1) {
3310 /* The FD we were watching has something waiting */
3311 ast_log(LOG_WARNING, "The FD we were waiting for has something waiting. Waitfordigit returning numeric 1\n");
3313 return 1;
3314 } else if (rchan) {
3315 int res;
3316 struct ast_frame *f = ast_read(c);
3317
3318 if (!f) {
3320
3321 return -1;
3322 }
3323
3324 switch (f->frametype) {
3326 break;
3327 case AST_FRAME_DTMF_END:
3328 res = f->subclass.integer;
3329 if (!breakon || strchr(breakon, res)) {
3330 ast_frfree(f);
3332 return res;
3333 }
3334 break;
3335 case AST_FRAME_CONTROL:
3336 switch (f->subclass.integer) {
3337 case AST_CONTROL_HANGUP:
3338 ast_frfree(f);
3340 return -1;
3346 /* Fall-through and treat as if it were a DTMF signal. Items
3347 * that perform stream control will handle this. */
3348 res = f->subclass.integer;
3349 ast_frfree(f);
3351 return res;
3355 case AST_CONTROL_ANSWER:
3361 case AST_CONTROL_HOLD:
3362 case AST_CONTROL_UNHOLD:
3363 case AST_CONTROL_FLASH:
3364 case -1:
3365 /* Unimportant */
3366 break;
3367 default:
3368 ast_log(LOG_WARNING, "Unexpected control subclass '%d'\n", f->subclass.integer);
3369 break;
3370 }
3371 break;
3372 case AST_FRAME_VOICE:
3373 /* Write audio if appropriate */
3374 if (audiofd > -1) {
3375 if (write(audiofd, f->data.ptr, f->datalen) < 0) {
3376 ast_log(LOG_WARNING, "write() failed: %s\n", strerror(errno));
3377 }
3378 }
3379 default:
3380 /* Ignore */
3381 break;
3382 }
3383 ast_frfree(f);
3384 }
3385 }
3386
3388
3389 return 0; /* Time is up */
3390}
@ AST_CONTROL_STREAM_RESTART
@ AST_CONTROL_STREAM_SUSPEND
@ AST_CONTROL_STREAM_REVERSE
@ AST_CONTROL_STREAM_STOP
@ AST_CONTROL_STREAM_FORWARD
@ AST_CONTROL_UPDATE_RTP_PEER

References ast_channel_clear_flag(), ast_channel_flags(), ast_channel_set_flag(), ast_check_hangup(), AST_CONTROL_ANSWER, AST_CONTROL_CONNECTED_LINE, AST_CONTROL_FLASH, AST_CONTROL_HANGUP, AST_CONTROL_HOLD, AST_CONTROL_PROGRESS, AST_CONTROL_PVT_CAUSE_CODE, AST_CONTROL_REDIRECTING, AST_CONTROL_RINGING, AST_CONTROL_SRCCHANGE, AST_CONTROL_SRCUPDATE, AST_CONTROL_STREAM_FORWARD, AST_CONTROL_STREAM_RESTART, AST_CONTROL_STREAM_REVERSE, AST_CONTROL_STREAM_STOP, AST_CONTROL_STREAM_SUSPEND, AST_CONTROL_UNHOLD, AST_CONTROL_UPDATE_RTP_PEER, AST_FLAG_END_DTMF_ONLY, AST_FLAG_ZOMBIE, AST_FRAME_CONTROL, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, AST_FRAME_VOICE, ast_frfree, ast_log, ast_read(), ast_remaining_ms(), ast_test_flag, ast_tvnow(), ast_waitfor_nandfds(), c, ast_frame::data, ast_frame::datalen, errno, ast_frame::frametype, ast_frame_subclass::integer, LOG_WARNING, NULL, ast_frame::ptr, and ast_frame::subclass.

Referenced by ast_readstring_full(), ast_waitfordigit(), handle_getoption(), handle_waitfordigit(), and pbx_builtin_waitdigit().

◆ ast_write()

int ast_write ( struct ast_channel chan,
struct ast_frame frame 
)

Write a frame to a channel This function writes the given frame to the indicated channel.

Parameters
chandestination channel of the frame
frameframe that will be written
Returns
It returns 0 on success, -1 on failure.

Definition at line 5201 of file channel.c.

5202{
5203 return ast_write_stream(chan, -1, fr);
5204}
int ast_write_stream(struct ast_channel *chan, int stream_num, struct ast_frame *fr)
Write a frame to a stream This function writes the given frame to the indicated stream on the channel...
Definition channel.c:5206

References ast_write_stream().

Referenced by adsi_careful_send(), ast_prod(), ast_readaudio_callback(), ast_readvideo_callback(), AST_TEST_DEFINE(), AST_TEST_DEFINE(), ast_write_video(), audiosocket_run(), conf_queue_dtmf(), conf_run(), dictate_exec(), echo_exec(), fax_gateway_detect_v21(), gen_generate(), generic_fax_exec(), handle_jack_audio(), jb_get_and_deliver(), linear_generator(), manager_send_flash(), milliwatt_generate(), moh_files_generator(), moh_generate(), mp3_exec(), playtones_generator(), send_waveform_to_channel(), silence_generator_generate(), sms_generate(), spandsp_fax_gw_t30_gen(), spy_generate(), spy_generate(), t38_tx_packet_handler(), tonepair_generator(), and wait_for_answer().

◆ ast_write_stream()

int ast_write_stream ( struct ast_channel chan,
int  stream_num,
struct ast_frame frame 
)

Write a frame to a stream This function writes the given frame to the indicated stream on the channel.

Parameters
chandestination channel of the frame
stream_numdestination stream on the channel
frameframe that will be written
Returns
It returns 0 on success, -1 on failure.
Note
If -1 is provided as the stream number and a media frame is provided the function will write to the default stream of the type of media.

Definition at line 5206 of file channel.c.

5207{
5208 struct ast_stream *stream = NULL, *default_stream = NULL;
5209 int res = -1;
5210 struct ast_frame *f = NULL;
5211 int count = 0;
5212 int hooked = 0;
5213
5214 /*Deadlock avoidance*/
5215 while(ast_channel_trylock(chan)) {
5216 /*cannot goto done since the channel is not locked*/
5217 if(count++ > 10) {
5218 ast_debug(1, "Deadlock avoided for write to channel '%s'\n", ast_channel_name(chan));
5219 return 0;
5220 }
5221 usleep(1);
5222 }
5223
5224 /* Stop if we're a zombie or need a soft hangup */
5226 goto done;
5227 }
5228
5229 if (stream_num >= 0) {
5230 /* If we were told to write to an explicit stream then allow this frame through, no matter
5231 * if the type is expected or not (a framehook could change)
5232 */
5234 goto done;
5235 }
5237 default_stream = ast_channel_get_default_stream(chan, ast_stream_get_type(stream));
5238 } else if (fr->frametype == AST_FRAME_VOICE || fr->frametype == AST_FRAME_VIDEO || fr->frametype == AST_FRAME_MODEM) {
5239 /* If we haven't been told of a stream then we need to figure out which once we need */
5241
5242 /* Some frame types have a fixed media type */
5243 if (fr->frametype == AST_FRAME_VOICE || fr->frametype == AST_FRAME_VIDEO) {
5245 } else if (fr->frametype == AST_FRAME_MODEM) {
5247 }
5248
5249 /* No stream was specified, so use the default one */
5250 stream = default_stream = ast_channel_get_default_stream(chan, type);
5251 }
5252
5253 /* Perform the framehook write event here. After the frame enters the framehook list
5254 * there is no telling what will happen, how awesome is that!!! */
5255 if ((stream == default_stream) && !(fr = ast_framehook_list_write_event(ast_channel_framehooks(chan), fr))) {
5256 res = 0;
5257 goto done;
5258 }
5259
5260 if (ast_channel_generatordata(chan) && (fr->frametype != AST_FRAME_RTCP) && (!fr->src || strcasecmp(fr->src, "ast_prod"))) {
5263 } else {
5264 if (fr->frametype == AST_FRAME_DTMF_END) {
5265 /* There is a generator running while we're in the middle of a digit.
5266 * It's probably inband DTMF, so go ahead and pass it so it can
5267 * stop the generator */
5268 ast_channel_unlock(chan);
5269 res = ast_senddigit_end(chan, fr->subclass.integer, fr->len);
5270 ast_channel_lock(chan);
5271 } else if (fr->frametype == AST_FRAME_CONTROL
5273 /*
5274 * This is a side case where Echo is basically being called
5275 * and the person put themselves on hold and took themselves
5276 * off hold.
5277 */
5279 fr->datalen);
5280 }
5281 res = 0; /* XXX explain, why 0 ? */
5282 goto done;
5283 }
5284 }
5285 /* High bit prints debugging */
5286 if (ast_channel_fout(chan) & DEBUGCHAN_FLAG)
5287 ast_frame_dump(ast_channel_name(chan), fr, ">>");
5288 switch (fr->frametype) {
5289 case AST_FRAME_CONTROL:
5291 res = 0;
5292 break;
5294 if (ast_channel_audiohooks(chan)) {
5295 struct ast_frame *old_frame = fr;
5297 if (old_frame != fr)
5298 f = fr;
5299 }
5301 ast_channel_unlock(chan);
5302 res = ast_senddigit_begin(chan, fr->subclass.integer);
5303 ast_channel_lock(chan);
5304 break;
5305 case AST_FRAME_DTMF_END:
5306 if (ast_channel_audiohooks(chan)) {
5307 struct ast_frame *new_frame = fr;
5308
5310 if (new_frame != fr) {
5311 ast_frfree(new_frame);
5312 }
5313 }
5315 ast_channel_unlock(chan);
5316 res = ast_senddigit_end(chan, fr->subclass.integer, fr->len);
5317 ast_channel_lock(chan);
5318 break;
5319 case AST_FRAME_TEXT:
5320 CHECK_BLOCKING(chan);
5322 res = (ast_channel_tech(chan)->write_text == NULL) ? 0 :
5323 ast_channel_tech(chan)->write_text(chan, fr);
5324 } else {
5325 res = (ast_channel_tech(chan)->send_text == NULL) ? 0 :
5326 ast_channel_tech(chan)->send_text(chan, (char *) fr->data.ptr);
5327 }
5329 break;
5330 case AST_FRAME_HTML:
5331 CHECK_BLOCKING(chan);
5332 res = (ast_channel_tech(chan)->send_html == NULL) ? 0 :
5333 ast_channel_tech(chan)->send_html(chan, fr->subclass.integer, (char *) fr->data.ptr, fr->datalen);
5335 break;
5336 case AST_FRAME_VIDEO:
5337 /* XXX Handle translation of video codecs one day XXX */
5338 CHECK_BLOCKING(chan);
5339 if (ast_channel_tech(chan)->write_stream) {
5340 if (stream) {
5341 res = ast_channel_tech(chan)->write_stream(chan, ast_stream_get_position(stream), fr);
5342 } else {
5343 res = 0;
5344 }
5345 } else if ((stream == default_stream) && ast_channel_tech(chan)->write_video) {
5346 res = ast_channel_tech(chan)->write_video(chan, fr);
5347 } else {
5348 res = 0;
5349 }
5351 break;
5352 case AST_FRAME_MODEM:
5353 CHECK_BLOCKING(chan);
5354 res = tech_write(chan, stream, default_stream, fr);
5356 break;
5357 case AST_FRAME_VOICE:
5359 apply_plc(chan, fr);
5360 }
5361
5362 f = fr;
5363
5364 /*
5365 * Send frame to audiohooks if present, if frametype is linear (else, later as per
5366 * previous behavior)
5367 */
5368 if ((stream == default_stream) && ast_channel_audiohooks(chan)) {
5370 hooked = 1;
5372 }
5373 }
5374
5375 /* If the frame is in the raw write format, then it's easy... just use the frame - otherwise we will have to translate */
5376 if ((stream == default_stream) && ast_format_cmp(fr->subclass.format, ast_channel_rawwriteformat(chan)) != AST_FORMAT_CMP_EQUAL) {
5378 struct ast_str *codec_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
5379
5380 /*
5381 * We are not setup to write this frame. Things may have changed
5382 * on the peer side of the world and we try to adjust the format to
5383 * make it compatible again. However, bad things can happen if we
5384 * cannot setup a new translation path. Problems range from no
5385 * audio, one-way audio, to garbled audio. The best we can do is
5386 * request the call to hangup since we could not make it compatible.
5387 *
5388 * Being continuously spammed by this message likely indicates a
5389 * problem with the peer because it cannot make up its mind about
5390 * which format to use.
5391 */
5392 ast_debug(1, "Channel %s changing write format from %s to %s, native formats %s\n",
5393 ast_channel_name(chan),
5397 if (ast_set_write_format(chan, fr->subclass.format)) {
5398 /* Could not handle the new write format. Induce a hangup. */
5399 break;
5400 }
5401 }
5402
5403 if (ast_channel_writetrans(chan)) {
5404 struct ast_frame *trans_frame = ast_translate(ast_channel_writetrans(chan), f, 0);
5405 if (trans_frame != f && f != fr) {
5406 /*
5407 * If translate gives us a new frame and so did the audio
5408 * hook then we need to free the one from the audio hook.
5409 */
5410 ast_frfree(f);
5411 }
5412 f = trans_frame;
5413 }
5414 }
5415
5416 if (!f) {
5417 res = 0;
5418 break;
5419 }
5420
5421 if ((stream == default_stream) && ast_channel_audiohooks(chan) && !hooked) {
5422 struct ast_frame *prev = NULL, *new_frame, *cur, *dup;
5423 int freeoldlist = 0;
5424
5425 if (f != fr) {
5426 freeoldlist = 1;
5427 }
5428
5429 /* Since ast_audiohook_write may return a new frame, and the cur frame is
5430 * an item in a list of frames, create a new list adding each cur frame back to it
5431 * regardless if the cur frame changes or not. */
5432 for (cur = f; cur; cur = AST_LIST_NEXT(cur, frame_list)) {
5434
5435 /* if this frame is different than cur, preserve the end of the list,
5436 * free the old frames, and set cur to be the new frame */
5437 if (new_frame != cur) {
5438
5439 /* doing an ast_frisolate here seems silly, but we are not guaranteed the new_frame
5440 * isn't part of local storage, meaning if ast_audiohook_write is called multiple
5441 * times it may override the previous frame we got from it unless we dup it */
5442 if ((dup = ast_frisolate(new_frame))) {
5444 if (freeoldlist) {
5446 ast_frfree(cur);
5447 }
5448 if (new_frame != dup) {
5449 ast_frfree(new_frame);
5450 }
5451 cur = dup;
5452 }
5453 }
5454
5455 /* now, regardless if cur is new or not, add it to the new list,
5456 * if the new list has not started, cur will become the first item. */
5457 if (prev) {
5458 AST_LIST_NEXT(prev, frame_list) = cur;
5459 } else {
5460 f = cur; /* set f to be the beginning of our new list */
5461 }
5462 prev = cur;
5463 }
5464 }
5465
5466 /* the translator on chan->writetrans may have returned multiple frames
5467 from the single frame we passed in; if so, feed each one of them to the
5468 channel, freeing each one after it has been written */
5469 CHECK_BLOCKING(chan);
5470 if ((f != fr) && AST_LIST_NEXT(f, frame_list)) {
5471 struct ast_frame *cur, *next = NULL;
5472 unsigned int skip = 0;
5473
5474 cur = f;
5475 while (cur) {
5478 if (!skip) {
5479 res = tech_write(chan, stream, default_stream, cur);
5480 if (res < 0) {
5482 skip = 1;
5483 } else if (next) {
5484 /* don't do this for the last frame in the list,
5485 as the code outside the loop will do it once
5486 */
5488 }
5489 }
5490 ast_frfree(cur);
5491 cur = next;
5492 }
5493
5494 /* reset f so the code below doesn't attempt to free it */
5495 f = NULL;
5496 } else {
5497 res = tech_write(chan, stream, default_stream, f);
5498 }
5500 break;
5501 case AST_FRAME_NULL:
5502 case AST_FRAME_IAX:
5503 /* Ignore these */
5504 res = 0;
5505 break;
5506 case AST_FRAME_RTCP:
5507 /* RTCP information is on a per-stream basis and only available on multistream capable channels */
5508 CHECK_BLOCKING(chan);
5509 if (ast_channel_tech(chan)->write_stream && stream) {
5510 res = ast_channel_tech(chan)->write_stream(chan, ast_stream_get_position(stream), fr);
5511 } else {
5512 res = 0;
5513 }
5515 break;
5516 default:
5517 /* At this point, fr is the incoming frame and f is NULL. Channels do
5518 * not expect to get NULL as a frame pointer and will segfault. Hence,
5519 * we output the original frame passed in. */
5520 CHECK_BLOCKING(chan);
5521 res = ast_channel_tech(chan)->write(chan, fr);
5523 break;
5524 }
5525
5526 if (f && f != fr)
5527 ast_frfree(f);
5528
5529 /* Consider a write failure to force a soft hangup */
5530 if (res < 0) {
5532 } else {
5534 }
5535done:
5537 /* The list gets recreated if audiohooks are added again later */
5540 }
5541 ast_channel_unlock(chan);
5542 return res;
5543}
@ AST_AUDIOHOOK_DIRECTION_WRITE
Definition audiohook.h:50
static int tech_write(struct ast_channel *chan, struct ast_stream *stream, struct ast_stream *default_stream, struct ast_frame *frame)
Definition channel.c:5189
static void apply_plc(struct ast_channel *chan, struct ast_frame *frame)
Definition channel.c:5163
#define ast_channel_trylock(chan)
Definition channel.h:2991
unsigned int ast_channel_fout(const struct ast_channel *chan)
@ AST_FLAG_WRITE_INT
Definition channel.h:1003
ast_media_type
Types of media.
Definition codec.h:30
@ AST_MEDIA_TYPE_UNKNOWN
Definition codec.h:31
@ AST_MEDIA_TYPE_IMAGE
Definition codec.h:34
#define AST_FORMAT_CAP_NAMES_LEN
Definition format_cap.h:324
const char * ast_format_cap_get_names(const struct ast_format_cap *cap, struct ast_str **buf)
Get the names of codecs of a set of formats.
Definition format_cap.c:734
static void write_stream(struct ogg_vorbis_desc *s, FILE *f)
Write out any pending encoded data.
INT32 integer
Definition lpc10.h:80
int ast_stream_topology_get_count(const struct ast_stream_topology *topology)
Get the number of streams in a topology.
Definition stream.c:768
enum ast_media_type ast_stream_get_type(const struct ast_stream *stream)
Get the media type of a stream.
Definition stream.c:316
#define ast_str_alloca(init_len)
Definition strings.h:848
int(*const write)(struct ast_channel *chan, struct ast_frame *frame)
Write a frame, in standard format (see frame.h)
Definition channel.h:770
int(*const write_stream)(struct ast_channel *chan, int stream_num, struct ast_frame *frame)
Write a frame on a specific stream, in standard format (see frame.h)
Definition channel.h:773
int(*const write_video)(struct ast_channel *chan, struct ast_frame *frame)
Write a frame, in standard format.
Definition channel.h:806
struct ast_frame * next
Support for dynamic strings.
Definition strings.h:623

References apply_plc(), ast_audiohook_detach_list(), AST_AUDIOHOOK_DIRECTION_WRITE, ast_audiohook_write_list(), ast_audiohook_write_list_empty(), ast_channel_audiohooks(), ast_channel_audiohooks_set(), ast_channel_flags(), ast_channel_fout(), ast_channel_fout_set(), ast_channel_framehooks(), ast_channel_generatordata(), ast_channel_get_default_stream(), ast_channel_get_stream_topology(), ast_channel_lock, ast_channel_name(), ast_channel_nativeformats(), ast_channel_rawwriteformat(), ast_channel_softhangup_internal_flag_add(), ast_channel_trylock, ast_channel_unlock, ast_channel_writeformat(), ast_channel_writetrans(), ast_check_hangup(), ast_clear_flag, AST_CONTROL_UNHOLD, ast_deactivate_generator(), ast_debug, AST_FLAG_BLOCKING, AST_FLAG_WRITE_INT, AST_FLAG_ZOMBIE, ast_format_cache_is_slinear(), ast_format_cap_get_names(), AST_FORMAT_CAP_NAMES_LEN, ast_format_cmp(), AST_FORMAT_CMP_EQUAL, ast_format_get_name(), ast_format_get_type(), ast_format_slin, ast_format_t140, AST_FRAME_CONTROL, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, ast_frame_dump(), AST_FRAME_HTML, AST_FRAME_IAX, AST_FRAME_MODEM, AST_FRAME_NULL, AST_FRAME_RTCP, AST_FRAME_TEXT, AST_FRAME_VIDEO, AST_FRAME_VOICE, ast_framehook_list_write_event(), ast_frfree, ast_frisolate, AST_LIST_NEXT, AST_MEDIA_TYPE_IMAGE, AST_MEDIA_TYPE_UNKNOWN, ast_opt_generic_plc, ast_senddigit_begin(), ast_senddigit_end(), ast_set_write_format(), AST_SOFTHANGUP_DEV, ast_str_alloca, ast_stream_get_position(), ast_stream_get_type(), ast_stream_topology_get_count(), ast_stream_topology_get_stream(), ast_test_flag, ast_translate(), CHECK_BLOCKING, ast_frame::data, ast_frame::datalen, DEBUGCHAN_FLAG, done, DTMF_SENT, ast_frame_subclass::format, FRAMECOUNT_INC, ast_frame::frametype, indicate_data_internal(), ast_frame_subclass::integer, ast_frame::len, ast_frame::next, NULL, ast_frame::ptr, send_dtmf_begin_event(), send_dtmf_end_event(), ast_channel_tech::send_html, ast_channel_tech::send_text, ast_frame::src, ast_frame::stream_num, ast_frame::subclass, tech_write(), type, ast_channel_tech::write, write_stream(), ast_channel_tech::write_stream, ast_channel_tech::write_text, and ast_channel_tech::write_video.

Referenced by AST_TEST_DEFINE(), AST_TEST_DEFINE(), ast_write(), bridge_channel_handle_write(), and stream_echo_write().

◆ ast_write_video()

int ast_write_video ( struct ast_channel chan,
struct ast_frame frame 
)

Write video frame to a channel This function writes the given frame to the indicated channel.

Parameters
chandestination channel of the frame
frameframe that will be written
Returns
It returns 1 on success, 0 if not implemented, and -1 on failure.

Definition at line 5074 of file channel.c.

5075{
5076 int res;
5077 if (!ast_channel_tech(chan)->write_video)
5078 return 0;
5079 res = ast_write(chan, fr);
5080 if (!res)
5081 res = 1;
5082 return res;
5083}

References ast_write().

◆ calc_monitor_jump()

static int calc_monitor_jump ( int  samples,
int  sample_rate,
int  seek_rate 
)
inlinestatic

calculates the number of samples to jump forward with in a monitor stream.

Note
When using ast_seekstream() with the read and write streams of a monitor, the number of samples to seek forward must be of the same sample rate as the stream or else the jump will not be calculated correctly.
Return values
numberof samples to seek forward after rate conversion.

Definition at line 3562 of file channel.c.

3563{
3564 int diff = sample_rate - seek_rate;
3565
3566 if (diff > 0) {
3567 samples = samples / (float) (sample_rate / seek_rate);
3568 } else if (diff < 0) {
3569 samples = samples * (float) (seek_rate / sample_rate);
3570 }
3571
3572 return samples;
3573}

References ast_frame::samples.

◆ call_forward_inherit()

static void call_forward_inherit ( struct ast_channel new_chan,
struct ast_channel parent,
struct ast_channel orig 
)
static

Definition at line 5927 of file channel.c.

5928{
5930 struct ast_party_redirecting redirecting;
5931
5932 /*
5933 * The parent is not a ZOMBIE or hungup so update it with the
5934 * original channel's redirecting information.
5935 */
5936 ast_party_redirecting_init(&redirecting);
5940 if (ast_channel_redirecting_sub(orig, parent, &redirecting, 0)) {
5941 ast_channel_update_redirecting(parent, &redirecting, NULL);
5942 }
5943 ast_party_redirecting_free(&redirecting);
5944 }
5945
5946 /* Safely inherit variables and datastores from the parent channel. */
5947 ast_channel_lock_both(parent, new_chan);
5948 ast_channel_inherit_variables(parent, new_chan);
5949 ast_channel_datastore_inherit(parent, new_chan);
5951 ast_channel_unlock(new_chan);
5952 ast_channel_unlock(parent);
5953}
int ast_channel_redirecting_sub(struct ast_channel *autoservice_chan, struct ast_channel *sub_chan, const void *redirecting_info, int is_frame)
Run a redirecting interception subroutine and update a channel's redirecting information.
Definition channel.c:10489

References ast_channel_datastore_inherit(), ast_channel_flags(), ast_channel_inherit_variables(), ast_channel_lock, ast_channel_lock_both, ast_channel_redirecting(), ast_channel_redirecting_sub(), ast_channel_unlock, ast_channel_update_redirecting(), ast_check_hangup(), AST_FLAG_ZOMBIE, ast_max_forwards_decrement(), ast_party_redirecting_copy(), ast_party_redirecting_free(), ast_party_redirecting_init(), ast_test_flag, NULL, and ast_party_redirecting::orig.

Referenced by ast_call_forward().

◆ channel_cc_params_copy()

static void * channel_cc_params_copy ( void *  data)
static

Definition at line 10534 of file channel.c.

10535{
10536 const struct ast_cc_config_params *src = data;
10538 if (!dest) {
10539 return NULL;
10540 }
10541 ast_cc_copy_config_params(dest, src);
10542 return dest;
10543}

References ast_cc_config_params_init, ast_cc_copy_config_params(), and NULL.

◆ channel_cc_params_destroy()

static void channel_cc_params_destroy ( void *  data)
static

Definition at line 10545 of file channel.c.

10546{
10547 struct ast_cc_config_params *cc_params = data;
10549}

References ast_cc_config_params_destroy().

◆ channel_do_masquerade()

static void channel_do_masquerade ( struct ast_channel original,
struct ast_channel clonechan 
)
static

Masquerade a channel.

Note
Assumes NO channels and NO channel pvt's are locked. If a channel is locked while calling this function, it invalidates our channel container locking order. All channels must be unlocked before it is permissible to lock the channels' ao2 container.

Definition at line 6919 of file channel.c.

6920{
6921 int x;
6922 int origstate;
6923 unsigned int orig_disablestatecache;
6924 unsigned int clone_disablestatecache;
6925 int visible_indication;
6926 int clone_hold_state;
6927 int moh_is_playing;
6928 struct ast_frame *current;
6929 const struct ast_channel_tech *t;
6930 void *t_pvt;
6931 union {
6933 struct ast_party_dialed dialed;
6934 struct ast_party_caller caller;
6936 struct ast_party_redirecting redirecting;
6937 } exchange;
6938 struct ast_channel *bridged;
6939 struct ast_format *rformat;
6940 struct ast_format *wformat;
6941 struct ast_format *tmp_format;
6942 struct ast_format_cap *tmp_cap;
6943 char tmp_name[AST_CHANNEL_NAME];
6944 char clone_sending_dtmf_digit;
6945 struct timeval clone_sending_dtmf_tv;
6946
6947 ast_debug(3, "Masquerading %s(%u) into the structure of %s(%u)\n",
6948 ast_channel_name(clonechan), ast_channel_state(clonechan),
6949 ast_channel_name(original), ast_channel_state(original));
6950 /* XXX This operation is a bit odd. We're essentially putting the guts of
6951 * the clone channel into the original channel. Start by killing off the
6952 * original channel's backend. While the features are nice, which is the
6953 * reason we're keeping it, it's still awesomely weird. XXX */
6954
6955 /* Indicate to each channel that a masquerade is about to begin. */
6956 x = 1;
6957 ast_indicate_data(original, AST_CONTROL_MASQUERADE_NOTIFY, &x, sizeof(x));
6958 ast_indicate_data(clonechan, AST_CONTROL_MASQUERADE_NOTIFY, &x, sizeof(x));
6959
6960 /*
6961 * The container lock is necessary for proper locking order
6962 * because the channels must be unlinked to change their
6963 * names.
6964 *
6965 * The original and clonechan locks must be held while the
6966 * channel contents are shuffled around for the masquerade.
6967 *
6968 * The masq and masqr pointers need to be left alone until the masquerade
6969 * has restabilized the channels to hold off ast_hangup() and until
6970 * AST_FLAG_ZOMBIE can be set on the clonechan.
6971 */
6973
6974 /* Bump the refs to ensure that they won't disappear on us. */
6975 ast_channel_ref(original);
6976 ast_channel_ref(clonechan);
6977
6978 /*
6979 * Since channel name and unique id will change, and both could be keys
6980 * in the channel storage backend, we need to remove them from the backend.
6981 * We'll add them back in after the changes are compete.
6982 */
6985
6987
6988 moh_is_playing = ast_test_flag(ast_channel_flags(original), AST_FLAG_MOH);
6989 if (moh_is_playing) {
6990 /* Stop MOH on the old original channel. */
6991 ast_moh_stop(original);
6992 }
6993
6994 /*
6995 * Stop any visible indication on the original channel so we can
6996 * transfer it to the clonechan taking the original's place.
6997 */
6998 ast_channel_lock(original);
6999 visible_indication = ast_channel_visible_indication(original);
7000 ast_channel_unlock(original);
7001 ast_indicate(original, -1);
7002
7003 /* Start the masquerade channel contents rearrangement. */
7004 ast_channel_lock_both(original, clonechan);
7005
7006 ast_debug(1, "Actually Masquerading %s(%u) into the structure of %s(%u)\n",
7007 ast_channel_name(clonechan), ast_channel_state(clonechan),
7008 ast_channel_name(original), ast_channel_state(original));
7009
7010 /* When all is said and done force new snapshot segments so they are
7011 * up to date.
7012 */
7015
7016 /*
7017 * Remember the original read/write formats. We turn off any
7018 * translation on either one
7019 */
7020 rformat = ao2_bump(ast_channel_readformat(original));
7021 wformat = ao2_bump(ast_channel_writeformat(original));
7022 free_translation(clonechan);
7023 free_translation(original);
7024
7025 clone_hold_state = ast_channel_hold_state(clonechan);
7026
7027 /* Save the current DTMF digit being sent if any. */
7028 clone_sending_dtmf_digit = ast_channel_sending_dtmf_digit(clonechan);
7029 clone_sending_dtmf_tv = ast_channel_sending_dtmf_tv(clonechan);
7030
7031 /* Swap uniqueid's of the channels. This needs to happen before channel renames,
7032 * so rename events get the proper id's.
7033 */
7035
7036 /* Make sure the Stasis topic on the channel is updated appropriately */
7037 ast_channel_internal_swap_topics(clonechan, original);
7038
7039 /* Swap endpoint forward so channel created with endpoint exchanges its state
7040 * with other channel for proper endpoint cleanup.
7041 */
7042 ast_channel_internal_swap_endpoint_forward(clonechan, original);
7043
7044 /* The old snapshots need to follow the channels so the snapshot update is correct */
7045 ast_channel_internal_swap_snapshots(clonechan, original);
7046
7047 /* Now we swap the endpoints if present */
7048 ast_channel_internal_swap_endpoints(clonechan, original);
7049
7050 /* Swap channel names. This uses ast_channel_name_set directly, so we
7051 * don't get any spurious rename events.
7052 */
7053 ast_copy_string(tmp_name, ast_channel_name(clonechan), sizeof(tmp_name));
7054 ast_channel_name_set(clonechan, ast_channel_name(original));
7055 ast_channel_name_set(original, tmp_name);
7056
7057 /* Swap the technologies */
7058 t = ast_channel_tech(original);
7059 ast_channel_tech_set(original, ast_channel_tech(clonechan));
7060 ast_channel_tech_set(clonechan, t);
7061
7062 t_pvt = ast_channel_tech_pvt(original);
7063 ast_channel_tech_pvt_set(original, ast_channel_tech_pvt(clonechan));
7064 ast_channel_tech_pvt_set(clonechan, t_pvt);
7065
7066 /* Swap the alertpipes */
7067 ast_channel_internal_alertpipe_swap(original, clonechan);
7068
7069 /*
7070 * Swap the readq's. The end result should be this:
7071 *
7072 * 1) All frames should be on the new (original) channel.
7073 * 2) Any frames that were already on the new channel before this
7074 * masquerade need to be at the end of the readq, after all of the
7075 * frames on the old (clone) channel.
7076 * 3) The alertpipe needs to get poked for every frame that was already
7077 * on the new channel, since we are now using the alert pipe from the
7078 * old (clone) channel.
7079 */
7080 {
7081 AST_LIST_HEAD_NOLOCK(, ast_frame) tmp_readq;
7082
7083 AST_LIST_HEAD_INIT_NOLOCK(&tmp_readq);
7084 AST_LIST_APPEND_LIST(&tmp_readq, ast_channel_readq(original), frame_list);
7086
7087 while ((current = AST_LIST_REMOVE_HEAD(&tmp_readq, frame_list))) {
7089 if (ast_channel_alert_write(original)) {
7090 ast_log(LOG_WARNING, "write() failed: %s\n", strerror(errno));
7091 }
7092 }
7093 }
7094
7095 /* Swap the raw formats */
7096 tmp_format = ao2_bump(ast_channel_rawreadformat(original));
7098 ast_channel_set_rawreadformat(clonechan, tmp_format);
7099 ao2_cleanup(tmp_format);
7100
7101 tmp_format = ao2_bump(ast_channel_rawwriteformat(original));
7103 ast_channel_set_rawwriteformat(clonechan, tmp_format);
7104 ao2_cleanup(tmp_format);
7105
7107
7108 /* And of course, so does our current state. Note we need not
7109 call ast_setstate since the event manager doesn't really consider
7110 these separate. We do this early so that the clone has the proper
7111 state of the original channel. */
7112 origstate = ast_channel_state(original);
7113 ast_channel_state_set(original, ast_channel_state(clonechan));
7114 ast_channel_state_set(clonechan, origstate);
7115
7116 /* And the swap the cachable state too. Otherwise we'd start caching
7117 * Local channels and ignoring real ones. */
7118 orig_disablestatecache = ast_test_flag(ast_channel_flags(original), AST_FLAG_DISABLE_DEVSTATE_CACHE);
7119 clone_disablestatecache = ast_test_flag(ast_channel_flags(clonechan), AST_FLAG_DISABLE_DEVSTATE_CACHE);
7120 if (orig_disablestatecache != clone_disablestatecache) {
7121 if (orig_disablestatecache) {
7124 } else {
7127 }
7128 }
7129
7130 /* Keep the same language. */
7131 ast_channel_language_set(original, ast_channel_language(clonechan));
7132
7133 /* Keep the same parkinglot. */
7134 ast_channel_parkinglot_set(original, ast_channel_parkinglot(clonechan));
7135
7136 /* Clear all existing file descriptors */
7138
7139 /* Copy all file descriptors present on clonechan to original */
7140 for (x = 0; x < ast_channel_fd_count(clonechan); x++) {
7141 ast_channel_set_fd(original, x, ast_channel_fd(clonechan, x));
7142 }
7143
7144 ast_app_group_update(clonechan, original);
7145
7146 /* Swap hangup handlers. */
7147 exchange.handlers = *ast_channel_hangup_handlers(original);
7149 *ast_channel_hangup_handlers(clonechan) = exchange.handlers;
7150
7151 /* Call fixup handlers for the clone chan */
7152 if (AST_LIST_FIRST(ast_channel_datastores(clonechan))) {
7153 struct ast_datastore *ds;
7154 /* We use a safe traversal here because some fixup routines actually
7155 * remove the datastore from the list and free them.
7156 */
7158 if (ds->info->chan_fixup) {
7159 ds->info->chan_fixup(ds->data, clonechan, original);
7160 }
7161 }
7163 }
7164
7165 /* Call breakdown handlers for the original chan */
7166 if (AST_LIST_FIRST(ast_channel_datastores(original))) {
7167 struct ast_datastore *ds;
7168 /* We use a safe traversal here because some breakdown routines may
7169 * remove the datastore from the list and free them.
7170 */
7172 if (ds->info->chan_breakdown) {
7173 ds->info->chan_breakdown(ds->data, clonechan, original);
7174 }
7175 }
7177 }
7178
7179 /* Move data stores over */
7180 if (AST_LIST_FIRST(ast_channel_datastores(clonechan))) {
7182 }
7183
7184 /* Move framehooks over */
7185 ast_framehook_list_fixup(clonechan, original);
7186
7187 /* Move audiohooks over */
7188 ast_audiohook_move_all(clonechan, original);
7189
7190 ast_autochan_new_channel(clonechan, original);
7191
7192 clone_variables(original, clonechan);
7193 /* Presence of ADSI capable CPE follows clone */
7194 ast_channel_adsicpe_set(original, ast_channel_adsicpe(clonechan));
7195 /* Bridge remains the same */
7196 /* CDR fields remain the same */
7197 /* XXX What about blocking, softhangup, blocker, and lock and blockproc? XXX */
7198 /* Application and data remain the same */
7199 /* Clone exception becomes real one, as with fdno */
7201 ast_channel_fdno_set(original, ast_channel_fdno(clonechan));
7202 /* Schedule context remains the same */
7203 /* Stream stuff stays the same */
7204 /* Keep the original state. The fixup code will need to work with it most likely */
7205
7206 /*
7207 * Just swap the whole structures, nevermind the allocations,
7208 * they'll work themselves out.
7209 */
7210 exchange.dialed = *ast_channel_dialed(original);
7211 ast_channel_dialed_set(original, ast_channel_dialed(clonechan));
7212 ast_channel_dialed_set(clonechan, &exchange.dialed);
7213
7214 /* Reset any earlier private caller id representations */
7215 ast_party_id_reset(&ast_channel_caller(original)->priv);
7216 ast_party_id_reset(&ast_channel_caller(clonechan)->priv);
7217
7218 exchange.caller = *ast_channel_caller(original);
7219 ast_channel_caller_set(original, ast_channel_caller(clonechan));
7220 ast_channel_caller_set(clonechan, &exchange.caller);
7221
7222 /* Reset any earlier private connected id representations */
7223 ast_party_id_reset(&ast_channel_connected(original)->priv);
7224 ast_party_id_reset(&ast_channel_connected(clonechan)->priv);
7225
7226 exchange.connected = *ast_channel_connected(original);
7228 ast_channel_connected_set(clonechan, &exchange.connected);
7229
7230 /* Reset any earlier private redirecting orig, from or to representations */
7231 ast_party_id_reset(&ast_channel_redirecting(original)->priv_orig);
7232 ast_party_id_reset(&ast_channel_redirecting(clonechan)->priv_orig);
7233 ast_party_id_reset(&ast_channel_redirecting(original)->priv_from);
7234 ast_party_id_reset(&ast_channel_redirecting(clonechan)->priv_from);
7235 ast_party_id_reset(&ast_channel_redirecting(original)->priv_to);
7236 ast_party_id_reset(&ast_channel_redirecting(clonechan)->priv_to);
7237
7238 exchange.redirecting = *ast_channel_redirecting(original);
7240 ast_channel_redirecting_set(clonechan, &exchange.redirecting);
7241
7243
7244 /* Restore original timing file descriptor */
7246
7247 /* Our native formats are different now */
7249 if (tmp_cap) {
7251 ast_channel_nativeformats_set(original, tmp_cap);
7252 ao2_ref(tmp_cap, -1);
7253 }
7254
7255 /* Context, extension, priority, app data, jump table, remain the same */
7256 /* pvt switches. pbx stays the same, as does next */
7257
7258 /* Set the write format */
7259 ast_set_write_format(original, wformat);
7260
7261 /* Set the read format */
7262 ast_set_read_format(original, rformat);
7263
7264 /* Copy the music class */
7265 ast_channel_musicclass_set(original, ast_channel_musicclass(clonechan));
7266
7267 /* copy over accuntcode and set peeraccount across the bridge */
7268 ast_channel_accountcode_set(original, S_OR(ast_channel_accountcode(clonechan), ""));
7269
7270 /* copy over userfield */
7271 ast_channel_userfield_set(original, ast_channel_userfield(clonechan));
7272
7273 ast_debug(1, "Putting channel %s in %s/%s formats\n", ast_channel_name(original),
7274 ast_format_get_name(wformat), ast_format_get_name(rformat));
7275
7276 /* Fixup the original clonechan's physical side */
7277 if (ast_channel_tech(original)->fixup && ast_channel_tech(original)->fixup(clonechan, original)) {
7278 ast_log(LOG_WARNING, "Channel type '%s' could not fixup channel %s, strange things may happen. (clonechan)\n",
7279 ast_channel_tech(original)->type, ast_channel_name(original));
7280 }
7281
7282 /* Fixup the original original's physical side */
7283 if (ast_channel_tech(clonechan)->fixup && ast_channel_tech(clonechan)->fixup(original, clonechan)) {
7284 ast_log(LOG_WARNING, "Channel type '%s' could not fixup channel %s, strange things may happen. (original)\n",
7285 ast_channel_tech(clonechan)->type, ast_channel_name(clonechan));
7286 }
7287
7288 ast_channel_internal_swap_stream_topology(original, clonechan);
7289
7290 /*
7291 * Now, at this point, the "clone" channel is totally F'd up.
7292 * We mark it as a zombie so nothing tries to touch it.
7293 *
7294 * This must be done before we unlock clonechan to prevent
7295 * setting up another masquerade on the clonechan.
7296 */
7298 ast_queue_frame(clonechan, &ast_null_frame);
7299
7300 ast_channel_unlock(original);
7301 ast_channel_unlock(clonechan);
7302
7303 /*
7304 * Indicate to each channel that a masquerade is complete.
7305 *
7306 * We can still do this to clonechan even though it is a
7307 * zombie because ast_indicate_data() will explicitly pass
7308 * this control and ast_hangup() is held off until the
7309 * ast_channel_masq() and ast_channel_masqr() pointers are
7310 * cleared.
7311 */
7312 x = 0;
7313 ast_indicate_data(original, AST_CONTROL_MASQUERADE_NOTIFY, &x, sizeof(x));
7314 ast_indicate_data(clonechan, AST_CONTROL_MASQUERADE_NOTIFY, &x, sizeof(x));
7315
7317
7318 if (clone_hold_state == AST_CONTROL_HOLD) {
7319 ast_debug(1, "Channel %s simulating UNHOLD for masquerade.\n",
7320 ast_channel_name(original));
7322 }
7323 if (clone_sending_dtmf_digit) {
7324 /*
7325 * The clonechan was sending a DTMF digit that was not completed
7326 * before the masquerade.
7327 */
7328 ast_channel_end_dtmf(original, clone_sending_dtmf_digit, clone_sending_dtmf_tv,
7329 "masquerade");
7330 }
7331
7332 /*
7333 * If an indication is currently playing, maintain it on the
7334 * channel that is taking the place of original.
7335 *
7336 * This is needed because the masquerade is swapping out the
7337 * internals of the channel, and the new channel private data
7338 * needs to be made aware of the current visible indication
7339 * (RINGING, CONGESTION, etc.)
7340 */
7341 if (visible_indication) {
7342 if (visible_indication == AST_CONTROL_HOLD) {
7343 const char *latest_musicclass;
7344 int len;
7345
7346 ast_channel_lock(original);
7347 latest_musicclass = ast_strdupa(ast_channel_latest_musicclass(original));
7348 ast_channel_unlock(original);
7349 if (ast_strlen_zero(latest_musicclass)) {
7350 latest_musicclass = NULL;
7351 len = 0;
7352 } else {
7353 len = strlen(latest_musicclass) + 1;
7354 }
7355 ast_indicate_data(original, visible_indication, latest_musicclass, len);
7356 } else {
7357 ast_indicate(original, visible_indication);
7358 }
7359 }
7360
7361 /*
7362 * If MOH was playing on the original channel then it needs to be
7363 * maintained on the channel that is replacing it.
7364 */
7365 if (moh_is_playing) {
7366 /* Start MOH on the new original channel. */
7367 ast_moh_start(original, NULL, NULL);
7368 }
7369
7370 ast_channel_lock(original);
7371
7372 /* Signal any blocker */
7374 pthread_kill(ast_channel_blocker(original), SIGURG);
7375 }
7376
7377 ast_debug(1, "Done Masquerading %s (%u)\n", ast_channel_name(original), ast_channel_state(original));
7378 ast_channel_unlock(original);
7379
7380 if ((bridged = ast_channel_bridge_peer(original))) {
7382 ast_channel_unref(bridged);
7383 }
7385
7386 /* Now that the operation is complete, we can clear the masq
7387 * and masqr fields of both channels.
7388 */
7389 ast_channel_lock_both(original, clonechan);
7390 ast_channel_masq_set(original, NULL);
7391 ast_channel_masqr_set(clonechan, NULL);
7392 ast_channel_unlock(original);
7393 ast_channel_unlock(clonechan);
7394
7396 CHANNELSTORAGE_API(current_channel_storage_instance, insert, clonechan, 0, 0);
7399
7400 /* Release our held safety references. */
7401 ast_channel_unref(original);
7402 ast_channel_unref(clonechan);
7403
7404 ao2_cleanup(rformat);
7405 ao2_cleanup(wformat);
7406}
void ast_audiohook_move_all(struct ast_channel *old_chan, struct ast_channel *new_chan)
Move all audiohooks from one channel to another.
Definition audiohook.c:709
void ast_autochan_new_channel(struct ast_channel *old_chan, struct ast_channel *new_chan)
Switch what channel autochans point to.
Definition autochan.c:86
void ast_bridge_notify_masquerade(struct ast_channel *chan)
Notify bridging that this channel was just masqueraded.
Definition bridge.c:1511
void ast_channel_end_dtmf(struct ast_channel *chan, char digit, struct timeval start, const char *why)
Simulate a DTMF end on a broken bridge channel.
Definition channel.c:10979
static void clone_variables(struct ast_channel *original, struct ast_channel *clonechan)
Clone channel variables from 'clone' channel into 'original' channel.
Definition channel.c:6884
int ast_moh_start(struct ast_channel *chan, const char *mclass, const char *interpclass)
Turn on music on hold on a given channel.
Definition channel.c:7840
void ast_moh_stop(struct ast_channel *chan)
Turn off music on hold on a given channel.
Definition channel.c:7850
void ast_party_id_reset(struct ast_party_id *id)
Destroy and initialize the given party id structure.
Definition channel.c:1883
void ast_channel_internal_alertpipe_swap(struct ast_channel *chan1, struct ast_channel *chan2)
Swap the interal alertpipe between two channels.
void ast_channel_caller_set(struct ast_channel *chan, struct ast_party_caller *value)
void ast_channel_dialed_set(struct ast_channel *chan, struct ast_party_dialed *value)
const char * ast_channel_latest_musicclass(const struct ast_channel *chan)
struct ast_flags * ast_channel_snapshot_segment_flags(struct ast_channel *chan)
void ast_channel_internal_swap_endpoint_forward(struct ast_channel *a, struct ast_channel *b)
Swap endpoint_forward between two channels.
const char * ast_channel_musicclass(const struct ast_channel *chan)
struct timeval ast_channel_sending_dtmf_tv(const struct ast_channel *chan)
void ast_channel_redirecting_set(struct ast_channel *chan, struct ast_party_redirecting *value)
#define ast_channel_ref(c)
Increase channel reference count.
Definition channel.h:3014
void ast_channel_softhangup_internal_flag_set(struct ast_channel *chan, int value)
void ast_channel_internal_swap_endpoints(struct ast_channel *a, struct ast_channel *b)
Swap endpoints between two channels.
const char * ast_channel_userfield(const struct ast_channel *chan)
const char * ast_channel_parkinglot(const struct ast_channel *chan)
ast_channel_adsicpe
Definition channel.h:888
void ast_channel_internal_swap_topics(struct ast_channel *a, struct ast_channel *b)
Swap topics beteween two channels.
void ast_channel_tech_pvt_set(struct ast_channel *chan, void *value)
void ast_channel_internal_swap_uniqueid_and_linkedid(struct ast_channel *a, struct ast_channel *b)
Swap uniqueid and linkedid beteween two channels.
int ast_channel_hold_state(const struct ast_channel *chan)
const char * ast_channel_language(const struct ast_channel *chan)
void ast_channel_connected_set(struct ast_channel *chan, struct ast_party_connected_line *value)
void ast_channel_internal_swap_snapshots(struct ast_channel *a, struct ast_channel *b)
Swap snapshots beteween two channels.
@ AST_FLAG_MOH
Definition channel.h:1011
int ast_channel_visible_indication(const struct ast_channel *chan)
struct ast_hangup_handler_list * ast_channel_hangup_handlers(struct ast_channel *chan)
void ast_channel_adsicpe_set(struct ast_channel *chan, enum ast_channel_adsicpe value)
void ast_channel_internal_swap_stream_topology(struct ast_channel *chan1, struct ast_channel *chan2)
int ast_format_cap_append_from_cap(struct ast_format_cap *dst, const struct ast_format_cap *src, enum ast_media_type type)
Append the formats of provided type in src to dst.
Definition format_cap.c:269
void ast_framehook_list_fixup(struct ast_channel *old_chan, struct ast_channel *new_chan)
This is used by the channel API during a masquerade operation to move all mobile framehooks from the ...
Definition framehook.c:223
int ast_app_group_update(struct ast_channel *oldchan, struct ast_channel *newchan)
Update all group counting for a channel to a new one.
Definition main/app.c:2301
void(* chan_fixup)(void *data, struct ast_channel *old_chan, struct ast_channel *new_chan)
Fix up channel references on the masquerading channel.
Definition datastore.h:48
void(* chan_breakdown)(void *data, struct ast_channel *old_chan, struct ast_channel *new_chan)
Fix up channel references on the channel being masqueraded into.
Definition datastore.h:60
Caller Party information.
Definition channel.h:420
Dialed/Called Party information.
Definition channel.h:380
static const struct ast_aeap_message_handler handlers[]
Definition test_aeap.c:135
#define AST_FLAGS_ALL
Definition utils.h:217

References ao2_bump, ao2_cleanup, ao2_ref, ast_app_group_update(), ast_audiohook_move_all(), ast_autochan_new_channel(), ast_bridge_notify_masquerade(), ast_channel_accountcode(), ast_channel_adsicpe_set(), ast_channel_alert_write(), ast_channel_blocker(), ast_channel_bridge_peer(), ast_channel_caller(), ast_channel_caller_set(), ast_channel_connected(), ast_channel_connected_set(), ast_channel_datastores(), ast_channel_dialed(), ast_channel_dialed_set(), ast_channel_end_dtmf(), ast_channel_fd(), ast_channel_fd_count(), ast_channel_fdno(), ast_channel_fdno_set(), ast_channel_flags(), ast_channel_hangup_handlers(), ast_channel_hold_state(), ast_channel_internal_alertpipe_swap(), ast_channel_internal_fd_clear_all(), ast_channel_internal_swap_endpoint_forward(), ast_channel_internal_swap_endpoints(), ast_channel_internal_swap_snapshots(), ast_channel_internal_swap_stream_topology(), ast_channel_internal_swap_topics(), ast_channel_internal_swap_uniqueid_and_linkedid(), ast_channel_language(), ast_channel_latest_musicclass(), ast_channel_lock, ast_channel_lock_both, ast_channel_masq_set(), ast_channel_masqr_set(), ast_channel_musicclass(), AST_CHANNEL_NAME, ast_channel_name(), ast_channel_name_set(), ast_channel_nativeformats(), ast_channel_nativeformats_set(), ast_channel_parkinglot(), ast_channel_publish_snapshot(), ast_channel_rawreadformat(), ast_channel_rawwriteformat(), ast_channel_readformat(), ast_channel_readq(), ast_channel_redirecting(), ast_channel_redirecting_set(), ast_channel_ref, ast_channel_sending_dtmf_digit(), ast_channel_sending_dtmf_tv(), ast_channel_set_fd(), ast_channel_set_rawreadformat(), ast_channel_set_rawwriteformat(), ast_channel_snapshot_segment_flags(), ast_channel_softhangup_internal_flag_set(), ast_channel_state_set(), ast_channel_tech_pvt(), ast_channel_tech_pvt_set(), ast_channel_tech_set(), ast_channel_timingfd(), ast_channel_unlock, ast_channel_unref, ast_channel_userfield(), ast_channel_visible_indication(), ast_channel_writeformat(), ast_clear_flag, AST_CONTROL_HOLD, AST_CONTROL_MASQUERADE_NOTIFY, AST_CONTROL_SRCCHANGE, AST_CONTROL_UNHOLD, ast_copy_string(), ast_debug, AST_FLAG_BLOCKING, AST_FLAG_DISABLE_DEVSTATE_CACHE, AST_FLAG_EXCEPTION, AST_FLAG_MOH, AST_FLAG_OUTGOING, AST_FLAG_ZOMBIE, AST_FLAGS_ALL, ast_format_cap_alloc, ast_format_cap_append_from_cap(), AST_FORMAT_CAP_FLAG_DEFAULT, ast_format_get_name(), ast_framehook_list_fixup(), ast_indicate(), ast_indicate_data(), AST_LIST_APPEND_LIST, AST_LIST_FIRST, AST_LIST_HEAD_INIT_NOLOCK, AST_LIST_HEAD_NOLOCK, AST_LIST_INSERT_TAIL, AST_LIST_REMOVE_HEAD, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, ast_log, AST_MEDIA_TYPE_UNKNOWN, ast_moh_start(), ast_moh_stop(), ast_null_frame, ast_party_id_reset(), ast_queue_frame(), ast_set_flag, ast_set_read_format(), ast_set_write_format(), AST_SOFTHANGUP_DEV, ast_strdupa, ast_strlen_zero(), ast_test_flag, AST_TIMING_FD, ast_channel::caller, ast_datastore_info::chan_breakdown, ast_datastore_info::chan_fixup, CHANNELSTORAGE_API, clone_variables(), connected, ast_channel::connected, current, current_channel_storage_instance, ast_datastore::data, ast_channel::dialed, ast_datastore::entry, errno, free_translation(), handlers, ast_datastore::info, len(), LOG_WARNING, NULL, ast_channel::redirecting, remove, S_OR, and type.

Referenced by ast_channel_move().

◆ channel_feature_hooks_set_full()

static int channel_feature_hooks_set_full ( struct ast_channel chan,
struct ast_bridge_features features,
int  replace 
)
static

Definition at line 11024 of file channel.c.

11025{
11026 struct ast_datastore *datastore;
11027 struct ast_bridge_features *ds_features;
11028
11030 if (datastore) {
11031 ds_features = datastore->data;
11032 if (replace) {
11033 ast_bridge_features_cleanup(ds_features);
11034 ast_bridge_features_init(ds_features);
11035 }
11036 if (features) {
11037 ast_bridge_features_merge(ds_features, features);
11038 }
11039 return 0;
11040 }
11041
11043 if (!datastore) {
11044 return -1;
11045 }
11046
11047 ds_features = ast_bridge_features_new();
11048 if (!ds_features) {
11049 ast_datastore_free(datastore);
11050 return -1;
11051 }
11052
11053 if (features) {
11054 ast_bridge_features_merge(ds_features, features);
11055 }
11056 datastore->data = ds_features;
11057 ast_channel_datastore_add(chan, datastore);
11058 return 0;
11059}
int ast_bridge_features_init(struct ast_bridge_features *features)
Initialize bridge features structure.
Definition bridge.c:3699
struct ast_bridge_features * ast_bridge_features_new(void)
Allocate a new bridge features struct.
Definition bridge.c:3762
void ast_bridge_features_merge(struct ast_bridge_features *into, const struct ast_bridge_features *from)
Merge one ast_bridge_features into another.
Definition bridge.c:3674
void ast_bridge_features_cleanup(struct ast_bridge_features *features)
Clean up the contents of a bridge features structure.
Definition bridge.c:3732
static int replace(struct ast_channel *chan, const char *cmd, char *data, struct ast_str **buf, ssize_t len)
Structure that contains features information.

References ast_bridge_features_cleanup(), ast_bridge_features_init(), ast_bridge_features_merge(), ast_bridge_features_new(), ast_channel_datastore_add(), ast_channel_datastore_find(), ast_datastore_alloc, ast_datastore_free(), bridge_features_info, ast_datastore::data, NULL, and replace().

Referenced by ast_channel_feature_hooks_append(), and ast_channel_feature_hooks_replace().

◆ channel_get_external_vars()

static struct varshead * channel_get_external_vars ( struct external_vars channelvars,
struct ast_channel chan 
)
static

Definition at line 7983 of file channel.c.

7985{
7986 RAII_VAR(struct varshead *, ret, NULL, ao2_cleanup);
7987 RAII_VAR(struct ast_str *, tmp, NULL, ast_free);
7988 struct manager_channel_variable *mcv;
7990
7991 if (AST_LIST_EMPTY(channelvars)) {
7992 return NULL;
7993 }
7994
7995 ret = ao2_alloc(sizeof(*ret), varshead_dtor);
7996 tmp = ast_str_create(16);
7997
7998 if (!ret || !tmp) {
7999 return NULL;
8000 }
8001
8002 AST_LIST_TRAVERSE(channelvars, mcv, entry) {
8003 const char *val = NULL;
8004 struct ast_var_t *var;
8005
8006 if (mcv->isfunc) {
8007 if (ast_func_read2(chan, mcv->name, &tmp, 0) == 0) {
8008 val = ast_str_buffer(tmp);
8009 } else {
8011 "Error invoking function %s\n", mcv->name);
8012 }
8013 } else {
8014 val = pbx_builtin_getvar_helper(chan, mcv->name);
8015 }
8016
8017 var = ast_var_assign(mcv->name, val ? val : "");
8018 if (!var) {
8019 return NULL;
8020 }
8021
8023 }
8024
8025 ao2_ref(ret, +1);
8026 return ret;
8027
8028}
#define AST_RWLIST_INSERT_TAIL
#define SCOPED_LOCK(varname, lock, lockfunc, unlockfunc)
Scoped Locks.
Definition lock.h:590
int ast_func_read2(struct ast_channel *chan, const char *function, struct ast_str **str, ssize_t maxlen)
executes a read operation on a function
#define ast_str_create(init_len)
Create a malloc'ed dynamic length string.
Definition strings.h:659
List of channel variables to append to all channel-related events.
Definition channel.c:7870
struct manager_channel_variable::@349 entry

References ao2_alloc, ao2_cleanup, ao2_ref, ast_free, ast_func_read2(), AST_LIST_EMPTY, AST_LIST_TRAVERSE, ast_log, AST_RWLIST_INSERT_TAIL, AST_RWLIST_RDLOCK, AST_RWLIST_UNLOCK, ast_str_buffer(), ast_str_create, ast_var_assign, ast_var_t::entries, manager_channel_variable::entry, manager_channel_variable::isfunc, lock, LOG_ERROR, manager_channel_variable::name, NULL, pbx_builtin_getvar_helper(), RAII_VAR, SCOPED_LOCK, var, and varshead_dtor().

Referenced by ast_channel_get_ari_vars(), and ast_channel_get_manager_vars().

◆ channel_has_external_vars()

static int channel_has_external_vars ( struct external_vars channelvars)
static

Definition at line 7891 of file channel.c.

7892{
7893 int vars_present;
7894
7895 AST_RWLIST_RDLOCK(channelvars);
7896 vars_present = !AST_LIST_EMPTY(channelvars);
7897 AST_RWLIST_UNLOCK(channelvars);
7898
7899 return vars_present;
7900}

References AST_LIST_EMPTY, AST_RWLIST_RDLOCK, and AST_RWLIST_UNLOCK.

Referenced by ast_channel_has_ari_vars(), and ast_channel_has_manager_vars().

◆ channel_req_accountcodes()

static void channel_req_accountcodes ( struct ast_channel chan,
const struct ast_channel requestor,
enum ast_channel_requestor_relationship  relationship,
int  precious 
)
static

Definition at line 6433 of file channel.c.

6434{
6435 /*
6436 * The primary reason for the existence of this function is
6437 * so local channels can propagate accountcodes to the ;2
6438 * channel before ast_call().
6439 *
6440 * The secondary reason is to propagate the CHANNEL(peeraccount)
6441 * value set before Dial, FollowMe, and Queue while maintaining
6442 * the historic straight across accountcode propagation as a
6443 * fallback.
6444 */
6445 switch (relationship) {
6447 /* Crossover the requestor's accountcode and peeraccount */
6448 if (!precious || ast_strlen_zero(ast_channel_accountcode(chan))) {
6449 /*
6450 * The newly created channel does not have an accountcode
6451 * or we don't care.
6452 */
6453 if (!ast_strlen_zero(ast_channel_peeraccount(requestor))) {
6454 /*
6455 * Set it to the requestor's peeraccount. This allows the
6456 * dialplan to indicate the accountcode to use when dialing
6457 * by setting CHANNEL(peeraccount).
6458 */
6459 ast_channel_accountcode_set(chan, ast_channel_peeraccount(requestor));
6460 } else if (!precious
6461 && !ast_strlen_zero(ast_channel_accountcode(requestor))) {
6462 /*
6463 * Fallback to the historic propagation and set it to the
6464 * requestor's accountcode.
6465 */
6466 ast_channel_accountcode_set(chan, ast_channel_accountcode(requestor));
6467 }
6468 }
6469 if (!ast_strlen_zero(ast_channel_accountcode(requestor))) {
6470 ast_channel_peeraccount_set(chan, ast_channel_accountcode(requestor));
6471 }
6472 break;
6474 /* Pass the requestor's accountcode and peeraccount straight. */
6475 if (!precious || ast_strlen_zero(ast_channel_accountcode(chan))) {
6476 /*
6477 * The newly created channel does not have an accountcode
6478 * or we don't care.
6479 */
6480 if (!ast_strlen_zero(ast_channel_accountcode(requestor))) {
6481 ast_channel_accountcode_set(chan, ast_channel_accountcode(requestor));
6482 }
6483 }
6484 if (!ast_strlen_zero(ast_channel_peeraccount(requestor))) {
6485 ast_channel_peeraccount_set(chan, ast_channel_peeraccount(requestor));
6486 }
6487 break;
6488 }
6489}
const char * ast_channel_peeraccount(const struct ast_channel *chan)

References ast_channel_accountcode(), ast_channel_peeraccount(), AST_CHANNEL_REQUESTOR_BRIDGE_PEER, AST_CHANNEL_REQUESTOR_REPLACEMENT, and ast_strlen_zero().

Referenced by ast_channel_req_accountcodes(), and ast_channel_req_accountcodes_precious().

◆ channel_set_external_vars()

static void channel_set_external_vars ( struct external_vars channelvars,
size_t  varc,
char **  vars 
)
static

Definition at line 7912 of file channel.c.

7913{
7914 size_t i;
7915
7916 free_external_channelvars(channelvars);
7917 AST_RWLIST_WRLOCK(channelvars);
7918 for (i = 0; i < varc; ++i) {
7919 const char *var = vars[i];
7920 struct manager_channel_variable *mcv;
7921 if (!(mcv = ast_calloc(1, sizeof(*mcv) + strlen(var) + 1))) {
7922 break;
7923 }
7924 strcpy(mcv->name, var); /* SAFE */
7925 if (strchr(var, '(')) {
7926 mcv->isfunc = 1;
7927 }
7928 AST_RWLIST_INSERT_TAIL(channelvars, mcv, entry);
7929 }
7930 AST_RWLIST_UNLOCK(channelvars);
7931
7932}
static void free_external_channelvars(struct external_vars *channelvars)
Definition channel.c:7881

References ast_calloc, AST_RWLIST_INSERT_TAIL, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, manager_channel_variable::entry, free_external_channelvars(), manager_channel_variable::isfunc, manager_channel_variable::name, and var.

Referenced by ast_channel_set_ari_vars(), and ast_channel_set_manager_vars().

◆ channel_set_intercept_mode()

static void channel_set_intercept_mode ( int  in_intercept_mode)
static

Definition at line 10428 of file channel.c.

10429{
10430 int status;
10431
10432 status = ast_threadstorage_set_ptr(&in_intercept_routine,
10433 in_intercept_mode ? &(int) { 1 } : NULL);
10434 if (status) {
10435 ast_log(LOG_ERROR, "Failed to set dialplan intercept mode\n");
10436 }
10437}
jack_status_t status
Definition app_jack.c:149
int ast_threadstorage_set_ptr(struct ast_threadstorage *ts, void *ptr)
Set a raw pointer from threadstorage.

References ast_log, ast_threadstorage_set_ptr(), LOG_ERROR, NULL, and status.

Referenced by ast_channel_connected_line_sub(), and ast_channel_redirecting_sub().

◆ channels_shutdown()

static void channels_shutdown ( void  )
static

◆ clone_variables()

static void clone_variables ( struct ast_channel original,
struct ast_channel clonechan 
)
static

Clone channel variables from 'clone' channel into 'original' channel.

All variables except those related to app_groupcount are cloned. Variables are actually removed from 'clone' channel, presumably because it will subsequently be destroyed.

Note
Assumes locks will be in place on both channels when called.

Definition at line 6884 of file channel.c.

6885{
6886 struct ast_var_t *current, *newvar;
6887 /* Append variables from clone channel into original channel */
6888 /* XXX Is this always correct? We have to in order to keep MACROS working XXX */
6890
6891 /* then, dup the varshead list into the clone */
6892
6894 newvar = ast_var_assign(current->name, current->value);
6895 if (newvar)
6897 }
6898}

References ast_channel_varshead(), AST_LIST_APPEND_LIST, AST_LIST_INSERT_TAIL, AST_LIST_TRAVERSE, ast_var_assign, current, and ast_var_t::entries.

Referenced by channel_do_masquerade().

◆ complete_channeltypes()

static char * complete_channeltypes ( struct ast_cli_args a)
static

Definition at line 304 of file channel.c.

305{
306 struct chanlist *cl;
307 int wordlen;
308
309 if (a->pos != 3) {
310 return NULL;
311 }
312
313 wordlen = strlen(a->word);
314
317 if (!strncasecmp(a->word, cl->tech->type, wordlen)) {
319 }
320 }
322
323 return NULL;
324}
int ast_cli_completion_add(char *value)
Add a result to a request for completion options.
Definition main/cli.c:2845

References a, ast_cli_completion_add(), AST_RWLIST_RDLOCK, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, ast_strdup, chanlist::list, NULL, and chanlist::tech.

Referenced by handle_cli_core_show_channeltype().

◆ deactivate_generator_nolock()

static void deactivate_generator_nolock ( struct ast_channel chan)
static

◆ deactivate_silence_generator()

static int deactivate_silence_generator ( struct ast_channel chan)
static

Definition at line 8293 of file channel.c.

8294{
8295 ast_channel_lock(chan);
8296
8297 if (!ast_channel_generatordata(chan)) {
8298 ast_debug(1, "Trying to stop silence generator when there is no generator on '%s'\n",
8299 ast_channel_name(chan));
8300 ast_channel_unlock(chan);
8301 return 0;
8302 }
8304 ast_debug(1, "Trying to stop silence generator when it is not the current generator on '%s'\n",
8305 ast_channel_name(chan));
8306 ast_channel_unlock(chan);
8307 return 0;
8308 }
8310
8311 ast_channel_unlock(chan);
8312
8313 return 1;
8314}

References ast_channel_generator(), ast_channel_generatordata(), ast_channel_lock, ast_channel_name(), ast_channel_unlock, ast_debug, deactivate_generator_nolock(), and silence_generator.

Referenced by ast_channel_stop_silence_generator().

◆ destroy_hooks()

static void destroy_hooks ( struct ast_channel chan)
static

Definition at line 2563 of file channel.c.

2564{
2565 if (ast_channel_audiohooks(chan)) {
2568 }
2569
2571}
int ast_framehook_list_destroy(struct ast_channel *chan)
This is used by the channel API to detach and destroy all framehooks on a channel during channel dest...
Definition framehook.c:206

References ast_audiohook_detach_list(), ast_channel_audiohooks(), ast_channel_audiohooks_set(), ast_framehook_list_destroy(), and NULL.

Referenced by ast_hangup().

◆ do_ids_conflict()

static int do_ids_conflict ( const struct ast_assigned_ids assignedids,
int  rdlock 
)
static

Definition at line 711 of file channel.c.

712{
713 struct ast_channel *conflict;
714
715 if (!assignedids) {
716 return 0;
717 }
718
719 if (!ast_strlen_zero(assignedids->uniqueid)) {
721 get_by_uniqueid, assignedids->uniqueid, rdlock);
722 if (conflict) {
723 ast_log(LOG_ERROR, "Channel Unique ID '%s' already in use by channel %s(%p)\n",
724 assignedids->uniqueid, ast_channel_name(conflict), conflict);
725 ast_channel_unref(conflict);
726 return 1;
727 }
728 }
729
730 if (!ast_strlen_zero(assignedids->uniqueid2)) {
732 get_by_uniqueid, assignedids->uniqueid2, rdlock);
733 if (conflict) {
734 ast_log(LOG_ERROR, "Channel Unique ID2 '%s' already in use by channel %s(%p)\n",
735 assignedids->uniqueid2, ast_channel_name(conflict), conflict);
736 ast_channel_unref(conflict);
737 return 1;
738 }
739 }
740
741 return 0;
742}
const char * uniqueid2
Definition channel.h:608
const char * uniqueid
Definition channel.h:607

References ast_channel_name(), ast_channel_unref, ast_log, ast_strlen_zero(), CHANNELSTORAGE_API, current_channel_storage_instance, get_by_uniqueid(), LOG_ERROR, ast_assigned_ids::uniqueid, and ast_assigned_ids::uniqueid2.

Referenced by __ast_channel_alloc_ap().

◆ dtmf_direction_to_string()

static const char * dtmf_direction_to_string ( enum DtmfDirection  direction)
static

Definition at line 3397 of file channel.c.

3398{
3399 switch (direction) {
3400 case DTMF_RECEIVED:
3401 return "Received";
3402 case DTMF_SENT:
3403 return "Sent";
3404 }
3405
3406 return "?";
3407}

References DTMF_RECEIVED, and DTMF_SENT.

Referenced by send_dtmf_begin_event(), and send_dtmf_end_event().

◆ features_destroy()

static void features_destroy ( void *  obj)
static

Definition at line 11003 of file channel.c.

11004{
11006}
void ast_bridge_features_destroy(struct ast_bridge_features *features)
Destroy an allocated bridge features struct.
Definition bridge.c:3753

References ast_bridge_features_destroy().

◆ free_external_channelvars()

static void free_external_channelvars ( struct external_vars channelvars)
static

Definition at line 7881 of file channel.c.

7882{
7884 AST_RWLIST_WRLOCK(channelvars);
7885 while ((var = AST_RWLIST_REMOVE_HEAD(channelvars, entry))) {
7886 ast_free(var);
7887 }
7888 AST_RWLIST_UNLOCK(channelvars);
7889}
#define AST_RWLIST_REMOVE_HEAD

References ast_free, AST_RWLIST_REMOVE_HEAD, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, manager_channel_variable::entry, and var.

Referenced by channel_set_external_vars(), and channels_shutdown().

◆ free_translation()

static void free_translation ( struct ast_channel clonechan)
static

◆ generator_force()

static int generator_force ( const void *  data)
static

Definition at line 2954 of file channel.c.

2955{
2956 /* Called if generator doesn't have data */
2957 void *tmp;
2958 int res;
2959 int (*generate)(struct ast_channel *chan, void *tmp, int datalen, int samples) = NULL;
2960 struct ast_channel *chan = (struct ast_channel *)data;
2961
2962 ast_channel_lock(chan);
2963 tmp = ast_channel_generatordata(chan);
2965 if (ast_channel_generator(chan))
2966 generate = ast_channel_generator(chan)->generate;
2967 ast_channel_unlock(chan);
2968
2969 if (!tmp || !generate) {
2970 return 0;
2971 }
2972
2973 res = generate(chan, tmp, 0, ast_format_get_sample_rate(ast_channel_writeformat(chan)) / 50);
2974
2975 ast_channel_lock(chan);
2976 if (ast_channel_generator(chan) && generate == ast_channel_generator(chan)->generate) {
2978 }
2979 ast_channel_unlock(chan);
2980
2981 if (res) {
2982 ast_debug(1, "Auto-deactivating generator\n");
2984 }
2985
2986 return 0;
2987}

References ast_channel_generator(), ast_channel_generatordata(), ast_channel_generatordata_set(), ast_channel_lock, ast_channel_unlock, ast_channel_writeformat(), ast_deactivate_generator(), ast_debug, ast_format_get_sample_rate(), ast_channel::data, ast_generator::generate, and NULL.

Referenced by ast_activate_generator().

◆ generator_write_format_change()

static void generator_write_format_change ( struct ast_channel chan)
static

Definition at line 2942 of file channel.c.

2943{
2944 struct ast_generator *generator;
2945
2946 ast_channel_lock(chan);
2947 generator = ast_channel_generator(chan);
2948 if (generator && generator->write_format_change) {
2949 generator->write_format_change(chan, ast_channel_generatordata(chan));
2950 }
2951 ast_channel_unlock(chan);
2952}
void(* write_format_change)(struct ast_channel *chan, void *data)
Definition channel.h:240

References ast_channel_generator(), ast_channel_generatordata(), ast_channel_lock, ast_channel_unlock, and ast_generator::write_format_change.

Referenced by set_format().

◆ handle_cause()

static void handle_cause ( int  cause,
int *  outstate 
)
static

Definition at line 5906 of file channel.c.

5907{
5908 if (outstate) {
5909 /* compute error and return */
5910 if (cause == AST_CAUSE_BUSY)
5911 *outstate = AST_CONTROL_BUSY;
5912 else if (cause == AST_CAUSE_CONGESTION)
5913 *outstate = AST_CONTROL_CONGESTION;
5914 else
5915 *outstate = 0;
5916 }
5917}
#define AST_CAUSE_CONGESTION
Definition causes.h:153
#define AST_CAUSE_BUSY
Definition causes.h:149

References AST_CAUSE_BUSY, AST_CAUSE_CONGESTION, AST_CONTROL_BUSY, and AST_CONTROL_CONGESTION.

Referenced by __ast_request_and_dial(), and ast_call_forward().

◆ handle_cli_core_show_channeltype()

static char * handle_cli_core_show_channeltype ( struct ast_cli_entry e,
int  cmd,
struct ast_cli_args a 
)
static

Show details about a channel driver - CLI command.

Definition at line 327 of file channel.c.

328{
329 struct chanlist *cl = NULL;
331
332 switch (cmd) {
333 case CLI_INIT:
334 e->command = "core show channeltype";
335 e->usage =
336 "Usage: core show channeltype <name>\n"
337 " Show details about the specified channel type, <name>.\n";
338 return NULL;
339 case CLI_GENERATE:
340 return complete_channeltypes(a);
341 }
342
343 if (a->argc != 4)
344 return CLI_SHOWUSAGE;
345
347
348 AST_RWLIST_TRAVERSE(&backends, cl, list) {
349 if (!strncasecmp(cl->tech->type, a->argv[3], strlen(cl->tech->type)))
350 break;
351 }
352
353
354 if (!cl) {
355 ast_cli(a->fd, "\n%s is not a registered channel driver.\n", a->argv[3]);
357 return CLI_FAILURE;
358 }
359
360 ast_cli(a->fd,
361 "-- Info about channel driver: %s --\n"
362 " Device State: %s\n"
363 "Presence State: %s\n"
364 " Indication: %s\n"
365 " Transfer : %s\n"
366 " Capabilities: %s\n"
367 " Digit Begin: %s\n"
368 " Digit End: %s\n"
369 " Send HTML : %s\n"
370 " Image Support: %s\n"
371 " Text Support: %s\n",
372 cl->tech->type,
373 (cl->tech->devicestate) ? "yes" : "no",
374 (cl->tech->presencestate) ? "yes" : "no",
375 (cl->tech->indicate) ? "yes" : "no",
376 (cl->tech->transfer) ? "yes" : "no",
377 ast_format_cap_get_names(cl->tech->capabilities, &codec_buf),
378 (cl->tech->send_digit_begin) ? "yes" : "no",
379 (cl->tech->send_digit_end) ? "yes" : "no",
380 (cl->tech->send_html) ? "yes" : "no",
381 (cl->tech->send_image) ? "yes" : "no",
382 (cl->tech->send_text) ? "yes" : "no"
383
384 );
385
387
388 return CLI_SUCCESS;
389}
static char * complete_channeltypes(struct ast_cli_args *a)
Definition channel.c:304
#define CLI_SHOWUSAGE
Definition cli.h:45
#define CLI_SUCCESS
Definition cli.h:44
void ast_cli(int fd, const char *fmt,...)
Definition clicompat.c:6
@ CLI_INIT
Definition cli.h:152
@ CLI_GENERATE
Definition cli.h:153
#define CLI_FAILURE
Definition cli.h:46
char * command
Definition cli.h:186
const char * usage
Definition cli.h:177

References a, ast_cli(), ast_format_cap_get_names(), AST_FORMAT_CAP_NAMES_LEN, AST_RWLIST_RDLOCK, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, ast_str_alloca, CLI_FAILURE, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, complete_channeltypes(), NULL, chanlist::tech, and ast_cli_entry::usage.

◆ handle_cli_core_show_channeltypes()

static char * handle_cli_core_show_channeltypes ( struct ast_cli_entry e,
int  cmd,
struct ast_cli_args a 
)
static

Show channel types - CLI command.

Definition at line 262 of file channel.c.

263{
264#define FORMAT "%-15.15s %-40.40s %-13.13s %-13.13s %-13.13s %-13.13s\n"
265 struct chanlist *cl;
266 int count_chan = 0;
267
268 switch (cmd) {
269 case CLI_INIT:
270 e->command = "core show channeltypes";
271 e->usage =
272 "Usage: core show channeltypes\n"
273 " Lists available channel types registered in your\n"
274 " Asterisk server.\n";
275 return NULL;
276 case CLI_GENERATE:
277 return NULL;
278 }
279
280 if (a->argc != 3)
281 return CLI_SHOWUSAGE;
282
283 ast_cli(a->fd, FORMAT, "Type", "Description", "Devicestate", "Presencestate", "Indications", "Transfer");
284 ast_cli(a->fd, FORMAT, "-------------", "-------------", "-------------", "-------------", "-------------", "-------------");
285
288 ast_cli(a->fd, FORMAT, cl->tech->type, cl->tech->description,
289 (cl->tech->devicestate) ? "yes" : "no",
290 (cl->tech->presencestate) ? "yes" : "no",
291 (cl->tech->indicate) ? "yes" : "no",
292 (cl->tech->transfer) ? "yes" : "no");
293 count_chan++;
294 }
296
297 ast_cli(a->fd, "----------\n%d channel drivers registered.\n", count_chan);
298
299 return CLI_SUCCESS;
300
301#undef FORMAT
302}
#define FORMAT

References a, ast_cli(), AST_RWLIST_RDLOCK, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, FORMAT, chanlist::list, NULL, chanlist::tech, and ast_cli_entry::usage.

◆ indicate_connected_line()

static int indicate_connected_line ( struct ast_channel chan,
const void *  data,
size_t  datalen 
)
static

Definition at line 4457 of file channel.c.

4458{
4459 struct ast_party_connected_line *chan_connected = ast_channel_connected(chan);
4460 struct ast_party_connected_line *chan_indicated = ast_channel_connected_indicated(chan);
4462 unsigned char current[1024];
4463 unsigned char proposed[1024];
4464 int current_size;
4465 int proposed_size;
4466 int res;
4467
4469 res = ast_connected_line_parse_data(data, datalen, &connected);
4470 if (!res) {
4472 }
4474 if (res) {
4475 return -1;
4476 }
4477
4478 current_size = ast_connected_line_build_data(current, sizeof(current),
4479 chan_indicated, NULL);
4480 proposed_size = ast_connected_line_build_data(proposed, sizeof(proposed),
4481 chan_connected, NULL);
4482 if (current_size == -1 || proposed_size == -1) {
4483 return -1;
4484 }
4485
4486 if (current_size == proposed_size && !memcmp(current, proposed, current_size)) {
4487 ast_debug(1, "%s: Dropping redundant connected line update \"%s\" <%s>.\n",
4488 ast_channel_name(chan),
4489 S_COR(chan_connected->id.name.valid, chan_connected->id.name.str, ""),
4490 S_COR(chan_connected->id.number.valid, chan_connected->id.number.str, ""));
4491 return -1;
4492 }
4493
4494 ast_party_connected_line_copy(chan_indicated, chan_connected);
4495 return 0;
4496}
#define S_COR(a, b, c)
returns the equivalent of logic or for strings, with an additional boolean check: second one if not e...
Definition strings.h:87

References ast_channel_connected(), ast_channel_connected_indicated(), ast_channel_name(), ast_channel_set_connected_line(), ast_connected_line_build_data(), ast_connected_line_parse_data(), ast_debug, ast_party_connected_line_copy(), ast_party_connected_line_free(), ast_party_connected_line_set_init(), connected, current, ast_party_connected_line::id, ast_party_id::name, NULL, ast_party_id::number, S_COR, ast_party_name::str, ast_party_number::str, ast_party_name::valid, and ast_party_number::valid.

Referenced by indicate_data_internal().

◆ indicate_data_internal()

static int indicate_data_internal ( struct ast_channel chan,
int  _condition,
const void *  data,
size_t  datalen 
)
static
Note
If we compare the enumeration type, which does not have any negative constants, the compiler may optimize this code away. Therefore, we must perform an integer comparison here.

Definition at line 4526 of file channel.c.

4527{
4528 /* By using an enum, we'll get compiler warnings for values not handled
4529 * in switch statements. */
4530 enum ast_control_frame_type condition = _condition;
4531 struct ast_tone_zone_sound *ts = NULL;
4532 const struct ast_control_t38_parameters *t38_parameters;
4533 int res;
4534
4535 switch (condition) {
4537 if (indicate_connected_line(chan, data, datalen)) {
4538 res = 0;
4539 return res;
4540 }
4541 break;
4543 if (indicate_redirecting(chan, data, datalen)) {
4544 res = 0;
4545 return res;
4546 }
4547 break;
4548 case AST_CONTROL_HOLD:
4549 case AST_CONTROL_UNHOLD:
4550 ast_channel_hold_state_set(chan, _condition);
4551 break;
4553 t38_parameters = data;
4554 switch (t38_parameters->request_response) {
4556 case AST_T38_NEGOTIATED:
4558 break;
4560 case AST_T38_TERMINATED:
4561 case AST_T38_REFUSED:
4563 break;
4564 default:
4565 break;
4566 }
4567 break;
4568 default:
4569 break;
4570 }
4571
4572 if (is_visible_indication(condition)) {
4573 /* A new visible indication is requested. */
4574 ast_channel_visible_indication_set(chan, _condition);
4575 } else if (condition == AST_CONTROL_UNHOLD || _condition < 0) {
4576 /* Visible indication is cleared/stopped. */
4578 }
4579
4580 if (ast_channel_tech(chan)->indicate) {
4581 /* See if the channel driver can handle this condition. */
4582 res = ast_channel_tech(chan)->indicate(chan, _condition, data, datalen);
4583 } else {
4584 res = -1;
4585 }
4586
4587 if (!res) {
4588 /* The channel driver successfully handled this indication */
4589 res = 0;
4590 return res;
4591 }
4592
4593 /* The channel driver does not support this indication, let's fake
4594 * it by doing our own tone generation if applicable. */
4595
4596 /*!\note If we compare the enumeration type, which does not have any
4597 * negative constants, the compiler may optimize this code away.
4598 * Therefore, we must perform an integer comparison here. */
4599 if (_condition < 0) {
4600 /* Stop any tones that are playing */
4601 ast_playtones_stop(chan);
4602 res = 0;
4603 return res;
4604 }
4605
4606 /* Handle conditions that we have tones for. */
4607 switch (condition) {
4609 /* deprecated T.38 control frame */
4610 res = -1;
4611 return res;
4613 /* there is no way to provide 'default' behavior for these
4614 * control frames, so we need to return failure, but there
4615 * is also no value in the log message below being emitted
4616 * since failure to handle these frames is not an 'error'
4617 * so just return right now. in addition, we want to return
4618 * whatever value the channel driver returned, in case it
4619 * has some meaning.*/
4620 return res;
4622 ts = ast_get_indication_tone(ast_channel_zone(chan), "ring");
4623 /* It is common practice for channel drivers to return -1 if trying
4624 * to indicate ringing on a channel which is up. The idea is to let the
4625 * core generate the ringing inband. However, we don't want the
4626 * warning message about not being able to handle the specific indication
4627 * to print nor do we want ast_indicate_data to return an "error" for this
4628 * condition
4629 */
4630 if (ast_channel_state(chan) == AST_STATE_UP) {
4631 res = 0;
4632 }
4633 break;
4634 case AST_CONTROL_BUSY:
4635 ts = ast_get_indication_tone(ast_channel_zone(chan), "busy");
4636 break;
4639 ts = ast_get_indication_tone(ast_channel_zone(chan), "congestion");
4640 break;
4642 ast_channel_hangupcause_hash_set(chan, data, datalen);
4643 res = 0;
4644 break;
4652 case AST_CONTROL_OPTION:
4653 case AST_CONTROL_WINK:
4654 case AST_CONTROL_FLASH:
4657 case AST_CONTROL_ANSWER:
4658 case AST_CONTROL_HANGUP:
4659 case AST_CONTROL_RING:
4660 case AST_CONTROL_HOLD:
4661 case AST_CONTROL_UNHOLD:
4665 case AST_CONTROL_CC:
4667 case AST_CONTROL_AOC:
4669 case AST_CONTROL_MCID:
4685 /* Nothing left to do for these. */
4686 res = 0;
4687 break;
4688 }
4689
4690 if (ts) {
4691 /* We have a tone to play, yay. */
4692 ast_debug(1, "Driver for channel '%s' does not support indication %u, emulating it\n", ast_channel_name(chan), condition);
4693 res = ast_playtones_start(chan, 0, ts->data, 1);
4694 if (!res) {
4695 ast_test_suite_event_notify("RINGING_INBAND",
4696 "Channel: %s\r\n",
4697 ast_channel_name(chan));
4698 }
4700 }
4701
4702 if (res) {
4703 /* not handled */
4704 ast_log(LOG_WARNING, "Unable to handle indication %u for '%s'\n", condition, ast_channel_name(chan));
4705 }
4706
4707 return res;
4708}
static int indicate_connected_line(struct ast_channel *chan, const void *data, size_t datalen)
Definition channel.c:4457
static int indicate_redirecting(struct ast_channel *chan, const void *data, size_t datalen)
Definition channel.c:4512
static int attribute_const is_visible_indication(enum ast_control_frame_type condition)
Definition channel.c:4337
void ast_channel_visible_indication_set(struct ast_channel *chan, int value)
void ast_channel_set_is_t38_active_nolock(struct ast_channel *chan, int is_t38_active)
Variant of ast_channel_set_is_t38_active. Use this if the channel is already locked prior to calling.
@ AST_T38_TERMINATED
@ AST_T38_REQUEST_TERMINATE
@ AST_T38_NEGOTIATED
@ AST_T38_REQUEST_NEGOTIATE
ast_control_frame_type
Internal control frame subtype field values.
@ AST_CONTROL_RECORD_CANCEL
@ AST_CONTROL_STREAM_TOPOLOGY_SOURCE_CHANGED
@ AST_CONTROL_OFFHOOK
@ AST_CONTROL_RADIO_UNKEY
@ AST_CONTROL_TAKEOFFHOOK
@ AST_CONTROL_T38_PARAMETERS
@ AST_CONTROL_RECORD_STOP
@ AST_CONTROL_PLAYBACK_BEGIN
@ AST_CONTROL_RECORD_MUTE
@ AST_CONTROL_RADIO_KEY
@ AST_CONTROL_OPTION
@ AST_CONTROL_RECORD_SUSPEND
@ _XXX_AST_CONTROL_T38
static struct ast_tone_zone_sound * ast_tone_zone_sound_unref(struct ast_tone_zone_sound *ts)
Release a reference to an ast_tone_zone_sound.
struct ast_tone_zone_sound * ast_get_indication_tone(const struct ast_tone_zone *zone, const char *indication)
Locate a tone zone sound.
enum ast_control_t38 request_response
Description of a tone.
Definition indications.h:35
const char * data
Description of a tone.
Definition indications.h:52

References _XXX_AST_CONTROL_T38, ast_channel_hangupcause_hash_set(), ast_channel_hold_state_set(), ast_channel_name(), ast_channel_set_is_t38_active_nolock(), ast_channel_visible_indication_set(), ast_channel_zone(), AST_CONTROL_ANSWER, AST_CONTROL_AOC, AST_CONTROL_BUSY, AST_CONTROL_CC, AST_CONTROL_CONGESTION, AST_CONTROL_CONNECTED_LINE, AST_CONTROL_END_OF_Q, AST_CONTROL_FLASH, AST_CONTROL_HANGUP, AST_CONTROL_HOLD, AST_CONTROL_INCOMPLETE, AST_CONTROL_MASQUERADE_NOTIFY, AST_CONTROL_MCID, AST_CONTROL_OFFHOOK, AST_CONTROL_OPTION, AST_CONTROL_PLAYBACK_BEGIN, AST_CONTROL_PROCEEDING, AST_CONTROL_PROGRESS, AST_CONTROL_PVT_CAUSE_CODE, AST_CONTROL_RADIO_KEY, AST_CONTROL_RADIO_UNKEY, AST_CONTROL_READ_ACTION, AST_CONTROL_RECORD_CANCEL, AST_CONTROL_RECORD_MUTE, AST_CONTROL_RECORD_STOP, AST_CONTROL_RECORD_SUSPEND, AST_CONTROL_REDIRECTING, AST_CONTROL_RING, AST_CONTROL_RINGING, AST_CONTROL_SRCCHANGE, AST_CONTROL_SRCUPDATE, AST_CONTROL_STREAM_FORWARD, AST_CONTROL_STREAM_RESTART, AST_CONTROL_STREAM_REVERSE, AST_CONTROL_STREAM_STOP, AST_CONTROL_STREAM_SUSPEND, AST_CONTROL_STREAM_TOPOLOGY_CHANGED, AST_CONTROL_STREAM_TOPOLOGY_REQUEST_CHANGE, AST_CONTROL_STREAM_TOPOLOGY_SOURCE_CHANGED, AST_CONTROL_T38_PARAMETERS, AST_CONTROL_TAKEOFFHOOK, AST_CONTROL_TRANSFER, AST_CONTROL_UNHOLD, AST_CONTROL_UPDATE_RTP_PEER, AST_CONTROL_VIDUPDATE, AST_CONTROL_WINK, ast_debug, ast_get_indication_tone(), ast_log, ast_playtones_start(), ast_playtones_stop(), AST_STATE_UP, AST_T38_NEGOTIATED, AST_T38_REFUSED, AST_T38_REQUEST_NEGOTIATE, AST_T38_REQUEST_TERMINATE, AST_T38_TERMINATED, ast_test_suite_event_notify, ast_tone_zone_sound_unref(), ast_tone_zone_sound::data, indicate(), ast_channel_tech::indicate, indicate_connected_line(), indicate_redirecting(), is_visible_indication(), LOG_WARNING, NULL, and ast_control_t38_parameters::request_response.

Referenced by ast_indicate_data(), and ast_write_stream().

◆ indicate_redirecting()

static int indicate_redirecting ( struct ast_channel chan,
const void *  data,
size_t  datalen 
)
static

Definition at line 4512 of file channel.c.

4513{
4514 struct ast_party_redirecting redirecting;
4515 int res;
4516
4518 res = ast_redirecting_parse_data(data, datalen, &redirecting);
4519 if (!res) {
4520 ast_channel_set_redirecting(chan, &redirecting, NULL);
4521 }
4522 ast_party_redirecting_free(&redirecting);
4523 return res ? -1 : 0;
4524}
void ast_channel_set_redirecting(struct ast_channel *chan, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update)
Set the redirecting id information in the Asterisk channel.
Definition channel.c:9225
void ast_party_redirecting_set_init(struct ast_party_redirecting *init, const struct ast_party_redirecting *guide)
Initialize the given redirecting id structure using the given guide for a set update operation.
Definition channel.c:2140

References ast_channel_redirecting(), ast_channel_set_redirecting(), ast_party_redirecting_free(), ast_party_redirecting_set_init(), ast_redirecting_parse_data(), and NULL.

Referenced by indicate_data_internal().

◆ internal_channel_set_current_storage_driver()

int internal_channel_set_current_storage_driver ( const char *  driver_name)

Definition at line 8085 of file channel.c.

8086{
8087 if (ast_fully_booted) {
8088 ast_log(LOG_ERROR, "Cannot change channel storage driver after Asterisk has started\n");
8089 return -1;
8090 }
8093 return 0;
8094 }
8096 "Invalid channel storage backend '%s' specified. Attempting to use default '%s'.\n",
8097 driver_name, AST_CHANNELSTORAGE_DEFAULT_TYPE);
8100 return 0;
8101 }
8102 ast_log(LOG_ERROR, "Unable to find default channel storage backend '%s'.\n",
8104 return -1;
8105}
const struct ast_channelstorage_driver * ast_channelstorage_get_driver(const char *driver_name)
#define ast_fully_booted
Definition options.h:127

References AST_CHANNELSTORAGE_DEFAULT_TYPE, ast_channelstorage_get_driver(), ast_fully_booted, ast_log, current_channel_storage_driver, LOG_ERROR, and LOG_WARNING.

Referenced by ast_channel_open_storage(), and load_asterisk_conf().

◆ is_visible_indication()

static int attribute_const is_visible_indication ( enum ast_control_frame_type  condition)
static

Definition at line 4337 of file channel.c.

4338{
4339 /* Don't include a default case here so that we get compiler warnings
4340 * when a new type is added. */
4341
4342 switch (condition) {
4350 case AST_CONTROL_OPTION:
4351 case AST_CONTROL_WINK:
4352 case AST_CONTROL_FLASH:
4355 case AST_CONTROL_ANSWER:
4356 case AST_CONTROL_HANGUP:
4362 case AST_CONTROL_CC:
4364 case AST_CONTROL_AOC:
4366 case AST_CONTROL_MCID:
4383 break;
4384
4387 case AST_CONTROL_BUSY:
4389 case AST_CONTROL_RING:
4390 case AST_CONTROL_HOLD:
4391 /* You can hear these */
4392 return 1;
4393
4394 case AST_CONTROL_UNHOLD:
4395 /* This is a special case. You stop hearing this. */
4396 break;
4397 }
4398
4399 return 0;
4400}

References _XXX_AST_CONTROL_T38, AST_CONTROL_ANSWER, AST_CONTROL_AOC, AST_CONTROL_BUSY, AST_CONTROL_CC, AST_CONTROL_CONGESTION, AST_CONTROL_CONNECTED_LINE, AST_CONTROL_END_OF_Q, AST_CONTROL_FLASH, AST_CONTROL_HANGUP, AST_CONTROL_HOLD, AST_CONTROL_INCOMPLETE, AST_CONTROL_MASQUERADE_NOTIFY, AST_CONTROL_MCID, AST_CONTROL_OFFHOOK, AST_CONTROL_OPTION, AST_CONTROL_PLAYBACK_BEGIN, AST_CONTROL_PROCEEDING, AST_CONTROL_PROGRESS, AST_CONTROL_PVT_CAUSE_CODE, AST_CONTROL_RADIO_KEY, AST_CONTROL_RADIO_UNKEY, AST_CONTROL_READ_ACTION, AST_CONTROL_RECORD_CANCEL, AST_CONTROL_RECORD_MUTE, AST_CONTROL_RECORD_STOP, AST_CONTROL_RECORD_SUSPEND, AST_CONTROL_REDIRECTING, AST_CONTROL_RING, AST_CONTROL_RINGING, AST_CONTROL_SRCCHANGE, AST_CONTROL_SRCUPDATE, AST_CONTROL_STREAM_FORWARD, AST_CONTROL_STREAM_RESTART, AST_CONTROL_STREAM_REVERSE, AST_CONTROL_STREAM_STOP, AST_CONTROL_STREAM_SUSPEND, AST_CONTROL_STREAM_TOPOLOGY_CHANGED, AST_CONTROL_STREAM_TOPOLOGY_REQUEST_CHANGE, AST_CONTROL_STREAM_TOPOLOGY_SOURCE_CHANGED, AST_CONTROL_T38_PARAMETERS, AST_CONTROL_TAKEOFFHOOK, AST_CONTROL_TRANSFER, AST_CONTROL_UNHOLD, AST_CONTROL_UPDATE_RTP_PEER, AST_CONTROL_VIDUPDATE, and AST_CONTROL_WINK.

Referenced by indicate_data_internal().

◆ kill_exception()

static struct ast_frame * kill_exception ( struct ast_channel chan)
static

Definition at line 402 of file channel.c.

403{
404 /* Hangup channel. */
405 return NULL;
406}

References NULL.

◆ kill_fixup()

static int kill_fixup ( struct ast_channel oldchan,
struct ast_channel newchan 
)
static

Definition at line 414 of file channel.c.

415{
416 /* No problem fixing up the channel. */
417 return 0;
418}

◆ kill_hangup()

static int kill_hangup ( struct ast_channel chan)
static

Definition at line 420 of file channel.c.

421{
423 return 0;
424}

References ast_channel_tech_pvt_set(), and NULL.

◆ kill_read()

static struct ast_frame * kill_read ( struct ast_channel chan)
static

Definition at line 396 of file channel.c.

397{
398 /* Hangup channel. */
399 return NULL;
400}

References NULL.

◆ kill_write()

static int kill_write ( struct ast_channel chan,
struct ast_frame frame 
)
static

Definition at line 408 of file channel.c.

409{
410 /* Hangup channel. */
411 return -1;
412}

◆ moh_cleanup()

static void moh_cleanup ( struct ast_channel chan)
static

Definition at line 7861 of file channel.c.

7862{
7864 ast_moh_cleanup_ptr(chan);
7865}

References ast_moh_cleanup_ptr.

Referenced by ast_channel_destructor().

◆ namedgroup_cmp_cb()

static int namedgroup_cmp_cb ( void *  obj,
void *  arg,
int  flags 
)
static

Comparison function used for named group container.

Definition at line 7733 of file channel.c.

7734{
7735 const struct namedgroup_member *an = obj;
7736 const struct namedgroup_member *bn = arg;
7737
7738 return strcmp(an->name, bn->name) ? 0 : CMP_MATCH | CMP_STOP;
7739}
@ CMP_MATCH
Definition astobj2.h:1027
@ CMP_STOP
Definition astobj2.h:1028

References CMP_MATCH, CMP_STOP, and namedgroup_member::name.

Referenced by ast_get_namedgroups().

◆ namedgroup_hash_cb()

static int namedgroup_hash_cb ( const void *  obj,
const int  flags 
)
static

Hashing function used for named group container.

Definition at line 7742 of file channel.c.

7743{
7744 const struct namedgroup_member *member = obj;
7745
7746 return member->hash;
7747}

Referenced by ast_get_namedgroups().

◆ namedgroup_match()

static int namedgroup_match ( void *  obj,
void *  arg,
int  flags 
)
static

Definition at line 8186 of file channel.c.

8187{
8188 void *match;
8189
8190 match = ao2_find(arg, obj, OBJ_POINTER);
8192
8193 return match ? CMP_MATCH | CMP_STOP : 0;
8194}

References ao2_cleanup, ao2_find, CMP_MATCH, CMP_STOP, match(), and OBJ_POINTER.

Referenced by ast_namedgroups_intersect().

◆ party_id_build_data()

static int party_id_build_data ( unsigned char *  data,
size_t  datalen,
const struct ast_party_id id,
const char *  label,
const struct ast_party_id_ies ies,
const struct ast_set_party_id update 
)
static

Definition at line 8683 of file channel.c.

8686{
8687 size_t length;
8688 size_t pos = 0;
8689 int res;
8690
8691 /*
8692 * The size of integer values must be fixed in case the frame is
8693 * shipped to another machine.
8694 */
8695
8696 if (!update || update->name) {
8697 res = party_name_build_data(data + pos, datalen - pos, &id->name, label,
8698 &ies->name);
8699 if (res < 0) {
8700 return -1;
8701 }
8702 pos += res;
8703 }
8704
8705 if (!update || update->number) {
8706 res = party_number_build_data(data + pos, datalen - pos, &id->number, label,
8707 &ies->number);
8708 if (res < 0) {
8709 return -1;
8710 }
8711 pos += res;
8712 }
8713
8714 if (!update || update->subaddress) {
8715 res = party_subaddress_build_data(data + pos, datalen - pos, &id->subaddress,
8716 label, &ies->subaddress);
8717 if (res < 0) {
8718 return -1;
8719 }
8720 pos += res;
8721 }
8722
8723 /* *************** Party id user tag **************************** */
8724 if (id->tag) {
8725 length = strlen(id->tag);
8726 if (datalen < pos + (sizeof(data[0]) * 2) + length) {
8727 ast_log(LOG_WARNING, "No space left for %s tag\n", label);
8728 return -1;
8729 }
8730 data[pos++] = ies->tag;
8731 data[pos++] = length;
8732 memcpy(data + pos, id->tag, length);
8733 pos += length;
8734 }
8735
8736 /* *************** Party id combined presentation *************** */
8737 if (ies->combined_presentation && (!update || update->number)) {
8738 int presentation;
8739
8740 if (!update || update->name) {
8741 presentation = ast_party_id_presentation(id);
8742 } else {
8743 /*
8744 * We must compromise because not all the information is available
8745 * to determine a combined presentation value.
8746 * We will only send the number presentation instead.
8747 */
8748 presentation = id->number.presentation;
8749 }
8750
8751 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
8752 ast_log(LOG_WARNING, "No space left for %s combined presentation\n", label);
8753 return -1;
8754 }
8755 data[pos++] = ies->combined_presentation;
8756 data[pos++] = 1;
8757 data[pos++] = presentation;
8758 }
8759
8760 return pos;
8761}
int ast_party_id_presentation(const struct ast_party_id *id)
Determine the overall presentation value for the given party.
Definition channel.c:1808
static int party_subaddress_build_data(unsigned char *data, size_t datalen, const struct ast_party_subaddress *subaddress, const char *label, const struct ast_party_subaddress_ies *ies)
Definition channel.c:8602
static int party_name_build_data(unsigned char *data, size_t datalen, const struct ast_party_name *name, const char *label, const struct ast_party_name_ies *ies)
Definition channel.c:8454
static int party_number_build_data(unsigned char *data, size_t datalen, const struct ast_party_number *number, const char *label, const struct ast_party_number_ies *ies)
Definition channel.c:8528
struct ast_party_subaddress_ies subaddress
Subscriber subaddress ies.
Definition channel.c:8658
int combined_presentation
Combined name and number presentation ie.
Definition channel.c:8665
struct ast_party_number_ies number
Subscriber phone number ies.
Definition channel.c:8656
int tag
User party id tag ie.
Definition channel.c:8660

References ast_log, ast_party_id_presentation(), ast_party_id_ies::combined_presentation, id, LOG_WARNING, ast_party_id_ies::name, ast_party_id_ies::number, party_name_build_data(), party_number_build_data(), party_subaddress_build_data(), ast_party_id_ies::subaddress, ast_party_id_ies::tag, and update().

Referenced by ast_connected_line_build_data(), and ast_redirecting_build_data().

◆ party_name_build_data()

static int party_name_build_data ( unsigned char *  data,
size_t  datalen,
const struct ast_party_name name,
const char *  label,
const struct ast_party_name_ies ies 
)
static

Definition at line 8454 of file channel.c.

8455{
8456 size_t length;
8457 size_t pos = 0;
8458
8459 /*
8460 * The size of integer values must be fixed in case the frame is
8461 * shipped to another machine.
8462 */
8463 if (name->str) {
8464 length = strlen(name->str);
8465 if (datalen < pos + (sizeof(data[0]) * 2) + length) {
8466 ast_log(LOG_WARNING, "No space left for %s name\n", label);
8467 return -1;
8468 }
8469 data[pos++] = ies->str;
8470 data[pos++] = length;
8471 memcpy(data + pos, name->str, length);
8472 pos += length;
8473 }
8474
8475 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
8476 ast_log(LOG_WARNING, "No space left for %s name char set\n", label);
8477 return -1;
8478 }
8479 data[pos++] = ies->char_set;
8480 data[pos++] = 1;
8481 data[pos++] = name->char_set;
8482
8483 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
8484 ast_log(LOG_WARNING, "No space left for %s name presentation\n", label);
8485 return -1;
8486 }
8487 data[pos++] = ies->presentation;
8488 data[pos++] = 1;
8489 data[pos++] = name->presentation;
8490
8491 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
8492 ast_log(LOG_WARNING, "No space left for %s name valid\n", label);
8493 return -1;
8494 }
8495 data[pos++] = ies->valid;
8496 data[pos++] = 1;
8497 data[pos++] = name->valid;
8498
8499 return pos;
8500}
int char_set
Character set ie.
Definition channel.c:8433
int presentation
presentation-indicator ie
Definition channel.c:8435
int valid
valid/present ie
Definition channel.c:8437

References ast_log, ast_party_name_ies::char_set, LOG_WARNING, name, ast_party_name_ies::presentation, ast_party_name_ies::str, and ast_party_name_ies::valid.

Referenced by party_id_build_data().

◆ party_number_build_data()

static int party_number_build_data ( unsigned char *  data,
size_t  datalen,
const struct ast_party_number number,
const char *  label,
const struct ast_party_number_ies ies 
)
static

Definition at line 8528 of file channel.c.

8529{
8530 size_t length;
8531 size_t pos = 0;
8532
8533 /*
8534 * The size of integer values must be fixed in case the frame is
8535 * shipped to another machine.
8536 */
8537 if (number->str) {
8538 length = strlen(number->str);
8539 if (datalen < pos + (sizeof(data[0]) * 2) + length) {
8540 ast_log(LOG_WARNING, "No space left for %s number\n", label);
8541 return -1;
8542 }
8543 data[pos++] = ies->str;
8544 data[pos++] = length;
8545 memcpy(data + pos, number->str, length);
8546 pos += length;
8547 }
8548
8549 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
8550 ast_log(LOG_WARNING, "No space left for %s numbering plan\n", label);
8551 return -1;
8552 }
8553 data[pos++] = ies->plan;
8554 data[pos++] = 1;
8555 data[pos++] = number->plan;
8556
8557 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
8558 ast_log(LOG_WARNING, "No space left for %s number presentation\n", label);
8559 return -1;
8560 }
8561 data[pos++] = ies->presentation;
8562 data[pos++] = 1;
8563 data[pos++] = number->presentation;
8564
8565 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
8566 ast_log(LOG_WARNING, "No space left for %s number valid\n", label);
8567 return -1;
8568 }
8569 data[pos++] = ies->valid;
8570 data[pos++] = 1;
8571 data[pos++] = number->valid;
8572
8573 return pos;
8574}
int presentation
presentation-indicator ie
Definition channel.c:8509
int str
Subscriber phone number ie.
Definition channel.c:8505
int valid
valid/present ie
Definition channel.c:8511
int plan
Type-Of-Number and Numbering-Plan ie.
Definition channel.c:8507

References ast_log, LOG_WARNING, ast_party_number_ies::plan, ast_party_number_ies::presentation, ast_party_number_ies::str, and ast_party_number_ies::valid.

Referenced by party_id_build_data().

◆ party_subaddress_build_data()

static int party_subaddress_build_data ( unsigned char *  data,
size_t  datalen,
const struct ast_party_subaddress subaddress,
const char *  label,
const struct ast_party_subaddress_ies ies 
)
static

Definition at line 8602 of file channel.c.

8603{
8604 size_t length;
8605 size_t pos = 0;
8606
8607 /*
8608 * The size of integer values must be fixed in case the frame is
8609 * shipped to another machine.
8610 */
8611 if (subaddress->str) {
8612 length = strlen(subaddress->str);
8613 if (datalen < pos + (sizeof(data[0]) * 2) + length) {
8614 ast_log(LOG_WARNING, "No space left for %s subaddress\n", label);
8615 return -1;
8616 }
8617 data[pos++] = ies->str;
8618 data[pos++] = length;
8619 memcpy(data + pos, subaddress->str, length);
8620 pos += length;
8621 }
8622
8623 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
8624 ast_log(LOG_WARNING, "No space left for %s type of subaddress\n", label);
8625 return -1;
8626 }
8627 data[pos++] = ies->type;
8628 data[pos++] = 1;
8629 data[pos++] = subaddress->type;
8630
8631 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
8633 "No space left for %s subaddress odd-even indicator\n", label);
8634 return -1;
8635 }
8636 data[pos++] = ies->odd_even_indicator;
8637 data[pos++] = 1;
8638 data[pos++] = subaddress->odd_even_indicator;
8639
8640 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
8641 ast_log(LOG_WARNING, "No space left for %s subaddress valid\n", label);
8642 return -1;
8643 }
8644 data[pos++] = ies->valid;
8645 data[pos++] = 1;
8646 data[pos++] = subaddress->valid;
8647
8648 return pos;
8649}
int str
subaddress ie.
Definition channel.c:8579
int odd_even_indicator
odd/even indicator ie
Definition channel.c:8583
int valid
valid/present ie
Definition channel.c:8585
int type
subaddress type ie
Definition channel.c:8581

References ast_log, LOG_WARNING, ast_party_subaddress::odd_even_indicator, ast_party_subaddress_ies::odd_even_indicator, ast_party_subaddress::str, ast_party_subaddress_ies::str, ast_party_subaddress::type, ast_party_subaddress_ies::type, ast_party_subaddress::valid, and ast_party_subaddress_ies::valid.

Referenced by party_id_build_data().

◆ plc_ds_destroy()

static void plc_ds_destroy ( void *  data)
static

Definition at line 5098 of file channel.c.

5099{
5100 struct plc_ds *plc = data;
5101 ast_free(plc->samples_buf);
5102 ast_free(plc);
5103}

References ast_free, and plc_ds::samples_buf.

◆ queue_dtmf_readq()

static void queue_dtmf_readq ( struct ast_channel chan,
struct ast_frame f 
)
inlinestatic

Definition at line 3517 of file channel.c.

3518{
3519 struct ast_frame *fr = ast_channel_dtmff(chan);
3520
3523 fr->len = f->len;
3524
3525 /* The only time this function will be called is for a frame that just came
3526 * out of the channel driver. So, we want to stick it on the tail of the
3527 * readq. */
3528
3529 ast_queue_frame(chan, fr);
3530}

References ast_channel_dtmff(), AST_FRAME_DTMF_END, ast_queue_frame(), ast_frame::frametype, ast_frame_subclass::integer, ast_frame::len, and ast_frame::subclass.

Referenced by __ast_read().

◆ redirecting_reason_build_data()

static int redirecting_reason_build_data ( unsigned char *  data,
size_t  datalen,
const struct ast_party_redirecting_reason reason,
const char *  label,
const struct ast_party_redirecting_reason_ies ies 
)
static

Definition at line 9341 of file channel.c.

9344{
9345 size_t length;
9346 size_t pos = 0;
9347 int32_t value;
9348
9349 if (datalen < pos + (sizeof(data[0]) * 2) + sizeof(value)) {
9350 ast_log(LOG_WARNING, "No space left for %s code\n", label);
9351 return -1;
9352 }
9353 data[pos++] = ies->code;
9354 data[pos++] = sizeof(value);
9355 value = htonl(reason->code);
9356 memcpy(data + pos, &value, sizeof(value));
9357 pos += sizeof(value);
9358
9359 if (reason->str) {
9360 length = strlen(reason->str);
9361 if (datalen < pos + (sizeof(data[0]) * 2) + length) {
9362 ast_log(LOG_WARNING, "No space left for %s string\n", label);
9363 return -1;
9364 }
9365 data[pos++] = ies->str;
9366 data[pos++] = length;
9367 memcpy(data + pos, reason->str, length);
9368 pos += length;
9369 }
9370
9371 return pos;
9372}

References ast_log, ast_party_redirecting_reason::code, ast_party_redirecting_reason_ies::code, LOG_WARNING, ast_party_redirecting_reason::str, ast_party_redirecting_reason_ies::str, and value.

Referenced by ast_redirecting_build_data().

◆ request_channel()

static struct ast_channel * request_channel ( const char *  type,
struct ast_format_cap request_cap,
struct ast_stream_topology topology,
const struct ast_assigned_ids assignedids,
const struct ast_channel requestor,
const char *  addr,
int *  cause 
)
static

Definition at line 6276 of file channel.c.

6278{
6279 struct chanlist *chan;
6280 struct ast_channel *c = NULL;
6281 int res;
6282 int foo;
6283
6284 if (!cause)
6285 cause = &foo;
6286 *cause = AST_CAUSE_NOTDEFINED;
6287
6289 ast_log(LOG_WARNING, "Unable to lock technology backend list\n");
6290 return NULL;
6291 }
6292
6293 AST_RWLIST_TRAVERSE(&backends, chan, list) {
6294 if (strcasecmp(type, chan->tech->type)) {
6295 continue;
6296 }
6297
6298 break;
6299 }
6300
6302
6303 if (!chan) {
6304 ast_log(LOG_WARNING, "No channel type registered for '%s'\n", type);
6305 *cause = AST_CAUSE_NOSUCHDRIVER;
6306 return NULL;
6307 }
6308
6309 /* Allow either format capabilities or stream topology to be provided and adapt */
6310 if (chan->tech->requester_with_stream_topology) {
6311 struct ast_stream_topology *tmp_converted_topology = NULL;
6312
6313 if (!topology && request_cap) {
6314 /* Turn the requested capabilities into a stream topology */
6315 topology = tmp_converted_topology = ast_stream_topology_create_from_format_cap(request_cap);
6316 }
6317
6318 c = chan->tech->requester_with_stream_topology(type, topology, assignedids, requestor, addr, cause);
6319
6320 ast_stream_topology_free(tmp_converted_topology);
6321 } else if (chan->tech->requester) {
6322 struct ast_format_cap *tmp_converted_cap = NULL;
6323 struct ast_format_cap *tmp_cap;
6324 RAII_VAR(struct ast_format *, tmp_fmt, NULL, ao2_cleanup);
6325 RAII_VAR(struct ast_format *, best_audio_fmt, NULL, ao2_cleanup);
6326 struct ast_format_cap *joint_cap;
6327
6328 if (!request_cap && topology) {
6329 /* Turn the request stream topology into capabilities */
6330 request_cap = tmp_converted_cap = ast_stream_topology_get_formats(topology);
6331 }
6332
6333 /* find the best audio format to use */
6335 if (!tmp_cap) {
6337 return NULL;
6338 }
6339
6341 if (!ast_format_cap_empty(tmp_cap)) {
6342 /* We have audio - is it possible to connect the various calls to each other?
6343 (Avoid this check for calls without audio, like text+video calls)
6344 */
6345 res = ast_translator_best_choice(tmp_cap, chan->tech->capabilities, &tmp_fmt, &best_audio_fmt);
6346 ao2_ref(tmp_cap, -1);
6347 if (res < 0) {
6348 struct ast_str *tech_codecs = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
6349 struct ast_str *request_codecs = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
6350
6351 ast_log(LOG_WARNING, "No translator path exists for channel type %s (native %s) to %s\n", type,
6352 ast_format_cap_get_names(chan->tech->capabilities, &tech_codecs),
6353 ast_format_cap_get_names(request_cap, &request_codecs));
6355 ao2_cleanup(tmp_converted_cap);
6356 return NULL;
6357 }
6358 }
6359
6360 /* XXX Only the audio format calculated as being the best for translation
6361 * purposes is used for the request. This is because we don't have the ability
6362 * to signal to the initiator which one of their codecs that was offered is
6363 * the one that was selected, particularly in a chain of Local channels.
6364 */
6366 if (!joint_cap) {
6367 ao2_cleanup(tmp_converted_cap);
6368 return NULL;
6369 }
6372 if (best_audio_fmt) { /* text+video call? then, this is NULL */
6373 ast_format_cap_append(joint_cap, best_audio_fmt, 0);
6374 }
6375 ao2_cleanup(tmp_converted_cap);
6376
6377 c = chan->tech->requester(type, joint_cap, assignedids, requestor, addr, cause);
6378 ao2_ref(joint_cap, -1);
6379 }
6380
6381 if (!c) {
6382 return NULL;
6383 }
6384
6385 if (requestor) {
6386 ast_callid callid;
6387
6388 ast_channel_lock_both(c, (struct ast_channel *) requestor);
6389
6390 /* Set the newly created channel's callid to the same as the requestor. */
6391 callid = ast_channel_callid(requestor);
6392 if (callid) {
6393 ast_channel_callid_set(c, callid);
6394 }
6395
6397 ast_channel_unlock((struct ast_channel *) requestor);
6398 }
6399
6400 if (set_security_requirements(requestor, c)) {
6401 ast_log(LOG_WARNING, "Setting security requirements failed\n");
6402 ast_hangup(c);
6404 return NULL;
6405 }
6406
6407 /* no need to generate a Newchannel event here; it is done in the channel_alloc call */
6408 return c;
6409}
#define AST_CAUSE_BEARERCAPABILITY_NOTAVAIL
Definition causes.h:130
#define AST_CAUSE_NOTDEFINED
Definition causes.h:155
#define AST_CAUSE_NOSUCHDRIVER
Definition causes.h:156
static int set_security_requirements(const struct ast_channel *requestor, struct ast_channel *out)
Definition channel.c:6236
void ast_channel_callid_set(struct ast_channel *chan, ast_callid value)
int ast_format_cap_empty(const struct ast_format_cap *cap)
Determine if a format cap has no formats in it.
Definition format_cap.c:744
void ast_format_cap_remove_by_type(struct ast_format_cap *cap, enum ast_media_type type)
Remove all formats matching a specific format type.
Definition format_cap.c:523
void ast_stream_topology_free(struct ast_stream_topology *topology)
Unreference and destroy a stream topology.
Definition stream.c:746
struct ast_stream_topology * ast_stream_topology_create_from_format_cap(struct ast_format_cap *cap)
A helper function that, given a format capabilities structure, creates a topology and separates the m...
Definition stream.c:851
struct ast_format_cap * ast_stream_topology_get_formats(struct ast_stream_topology *topology)
Create a format capabilities structure representing the topology.
Definition stream.c:933

References ao2_cleanup, ao2_ref, AST_CAUSE_BEARERCAPABILITY_NOTAVAIL, AST_CAUSE_NOSUCHDRIVER, AST_CAUSE_NOTDEFINED, ast_channel_callid(), ast_channel_callid_set(), ast_channel_lock_both, ast_channel_unlock, ast_format_cap_alloc, ast_format_cap_append, ast_format_cap_append_from_cap(), ast_format_cap_empty(), AST_FORMAT_CAP_FLAG_DEFAULT, ast_format_cap_get_names(), AST_FORMAT_CAP_NAMES_LEN, ast_format_cap_remove_by_type(), ast_hangup(), ast_log, AST_MEDIA_TYPE_AUDIO, AST_MEDIA_TYPE_UNKNOWN, AST_RWLIST_RDLOCK, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, ast_str_alloca, ast_stream_topology_create_from_format_cap(), ast_stream_topology_free(), ast_stream_topology_get_formats(), ast_translator_best_choice(), c, chanlist::chan, LOG_WARNING, NULL, RAII_VAR, set_security_requirements(), chanlist::tech, and type.

Referenced by ast_request(), and ast_request_with_stream_topology().

◆ safe_sleep_conditional()

static int safe_sleep_conditional ( struct ast_channel chan,
int  timeout_ms,
int(*)(void *)  cond,
void *  data,
unsigned int  generate_silence 
)
static

Wait, look for hangups and condition arg.

Definition at line 1485 of file channel.c.

1486{
1487 struct ast_frame *f;
1488 struct ast_silence_generator *silgen = NULL;
1489 int res = 0;
1490 struct timeval start;
1491 int ms;
1492 AST_LIST_HEAD_NOLOCK(, ast_frame) deferred_frames;
1493
1494 AST_LIST_HEAD_INIT_NOLOCK(&deferred_frames);
1495
1496 /* If no other generator is present, start silencegen while waiting */
1497 if (generate_silence && ast_opt_transmit_silence && !ast_channel_generatordata(chan)) {
1499 }
1500
1501 start = ast_tvnow();
1502 while ((ms = ast_remaining_ms(start, timeout_ms))) {
1503 struct ast_frame *dup_f = NULL;
1504
1505 if (cond && ((*cond)(data) == 0)) {
1506 break;
1507 }
1508 ms = ast_waitfor(chan, ms);
1509 if (ms < 0) {
1510 res = -1;
1511 break;
1512 }
1513 if (ms > 0) {
1514 f = ast_read(chan);
1515 if (!f) {
1516 res = -1;
1517 break;
1518 }
1519
1520 if (!ast_is_deferrable_frame(f)) {
1521 ast_frfree(f);
1522 continue;
1523 }
1524
1525 if ((dup_f = ast_frisolate(f))) {
1526 if (dup_f != f) {
1527 ast_frfree(f);
1528 }
1529 AST_LIST_INSERT_HEAD(&deferred_frames, dup_f, frame_list);
1530 }
1531 }
1532 }
1533
1534 /* stop silgen if present */
1535 if (silgen) {
1537 }
1538
1539 /* We need to free all the deferred frames, but we only need to
1540 * queue the deferred frames if there was no error and no
1541 * hangup was received
1542 */
1543 ast_channel_lock(chan);
1544 while ((f = AST_LIST_REMOVE_HEAD(&deferred_frames, frame_list))) {
1545 if (!res) {
1546 ast_queue_frame_head(chan, f);
1547 }
1548 ast_frfree(f);
1549 }
1550 ast_channel_unlock(chan);
1551
1552 return res;
1553}
int ast_is_deferrable_frame(const struct ast_frame *frame)
Should we keep this frame for later?
Definition channel.c:1454

References ast_channel_generatordata(), ast_channel_lock, ast_channel_start_silence_generator(), ast_channel_stop_silence_generator(), ast_channel_unlock, ast_frfree, ast_frisolate, ast_is_deferrable_frame(), AST_LIST_HEAD_INIT_NOLOCK, AST_LIST_HEAD_NOLOCK, AST_LIST_INSERT_HEAD, AST_LIST_REMOVE_HEAD, ast_opt_transmit_silence, ast_queue_frame_head(), ast_read(), ast_remaining_ms(), ast_tvnow(), ast_waitfor(), cond, ast_frame::data, and NULL.

Referenced by ast_safe_sleep(), ast_safe_sleep_conditional(), and ast_safe_sleep_without_silence().

◆ send_dtmf_begin_event()

static void send_dtmf_begin_event ( struct ast_channel chan,
enum DtmfDirection  direction,
const char  digit 
)
static

Definition at line 3409 of file channel.c.

3411{
3412 RAII_VAR(struct ast_json *, channel_blob, NULL, ast_json_unref);
3413 char digit_str[] = { digit, '\0' };
3414
3415 channel_blob = ast_json_pack("{ s: s, s: s }",
3416 "digit", digit_str,
3417 "direction", dtmf_direction_to_string(direction));
3418
3419 if (channel_blob) {
3421 }
3422}
static const char * dtmf_direction_to_string(enum DtmfDirection direction)
Definition channel.c:3397
struct stasis_message_type * ast_channel_dtmf_begin_type(void)
Message type for when DTMF begins on a channel.

References ast_channel_dtmf_begin_type(), ast_channel_publish_blob(), ast_json_pack(), ast_json_unref(), digit, dtmf_direction_to_string(), NULL, and RAII_VAR.

Referenced by __ast_read(), and ast_write_stream().

◆ send_dtmf_end_event()

static void send_dtmf_end_event ( struct ast_channel chan,
enum DtmfDirection  direction,
const char  digit,
long  duration_ms 
)
static

Definition at line 3424 of file channel.c.

3426{
3427 RAII_VAR(struct ast_json *, channel_blob, NULL, ast_json_unref);
3428 RAII_VAR(struct ast_json *, cel_blob, NULL, ast_json_unref);
3429 char digit_str[] = { digit, '\0' };
3430
3431 channel_blob = ast_json_pack("{ s: s, s: s, s: I }",
3432 "digit", digit_str,
3433 "direction", dtmf_direction_to_string(direction),
3434 "duration_ms", (ast_json_int_t)duration_ms);
3435
3436 if (channel_blob) {
3438 }
3439
3440 cel_blob = ast_json_pack("{ s: s, s: { s: s, s: I }}",
3442 "extra",
3443 "digit", digit_str,
3444 "duration_ms", (ast_json_int_t)duration_ms);
3445
3446 if (cel_blob) {
3447 ast_cel_publish_event(chan, AST_CEL_DTMF, cel_blob);
3448 } else {
3449 ast_log(LOG_WARNING, "Unable to build extradata for DTMF CEL event on channel %s", ast_channel_name(chan));
3450 }
3451}
void ast_cel_publish_event(struct ast_channel *chan, enum ast_cel_event_type event_type, struct ast_json *blob)
Publish a CEL event.
Definition cel.c:1762
@ AST_CEL_DTMF
A DTMF digit was processed.
Definition cel.h:86
struct stasis_message_type * ast_channel_dtmf_end_type(void)
Message type for when DTMF ends on a channel.
AST_JSON_INT_T ast_json_int_t
Primarily used to cast when packing to an "I" type.
Definition json.h:87

References AST_CEL_DTMF, ast_cel_publish_event(), ast_channel_dtmf_end_type(), ast_channel_name(), ast_channel_publish_blob(), ast_json_pack(), ast_json_unref(), ast_log, digit, dtmf_direction_to_string(), LOG_WARNING, NULL, and RAII_VAR.

Referenced by __ast_read(), and ast_write_stream().

◆ send_flash_event()

static void send_flash_event ( struct ast_channel chan)
static

Definition at line 3453 of file channel.c.

3454{
3456}
struct stasis_message_type * ast_channel_flash_type(void)
Message type for when a hook flash occurs on a channel.

References ast_channel_flash_type(), ast_channel_publish_blob(), and NULL.

Referenced by __ast_read().

◆ send_wink_event()

static void send_wink_event ( struct ast_channel chan)
static

Definition at line 3458 of file channel.c.

3459{
3461}
struct stasis_message_type * ast_channel_wink_type(void)
Message type for when a wink occurs on a channel.

References ast_channel_publish_blob(), ast_channel_wink_type(), and NULL.

Referenced by __ast_read().

◆ set_channel_answer_time()

static void set_channel_answer_time ( struct ast_channel chan)
static

Definition at line 2661 of file channel.c.

2662{
2664 struct timeval answertime;
2665
2666 answertime = ast_tvnow();
2667 ast_channel_answertime_set(chan, &answertime);
2668 }
2669}
void ast_channel_answertime_set(struct ast_channel *chan, struct timeval *value)

References ast_channel_answertime(), ast_channel_answertime_set(), ast_tvnow(), and ast_tvzero().

Referenced by __ast_read(), and ast_raw_answer_with_stream_topology().

◆ set_format()

static int set_format ( struct ast_channel chan,
struct ast_format_cap cap_set,
const int  direction,
int  interleaved_stereo 
)
static

Definition at line 5650 of file channel.c.

5651{
5652 struct ast_trans_pvt *trans_pvt;
5653 struct ast_format_cap *cap_native;
5654 const struct set_format_access *access;
5655 struct ast_format *rawformat;
5656 struct ast_format *format;
5657 RAII_VAR(struct ast_format *, best_set_fmt, NULL, ao2_cleanup);
5658 RAII_VAR(struct ast_format *, best_native_fmt, NULL, ao2_cleanup);
5659 int res;
5660
5661 if (!direction) {
5662 /* reading */
5663 access = &set_format_access_read;
5664 } else {
5665 /* writing */
5666 access = &set_format_access_write;
5667 }
5668
5670 if (!best_set_fmt) {
5671 /*
5672 * Not setting any audio formats?
5673 * Assume a call without any sounds (video, text)
5674 */
5675 return 0;
5676 }
5677
5678 /* See if the underlying channel driver is capable of performing transcoding for us */
5679 res = ast_channel_setoption(chan, access->setoption,
5680 &best_set_fmt, sizeof(best_set_fmt), 0);
5681 if (!res) {
5682 ast_debug(1, "Channel driver natively set channel %s to %s format %s\n",
5683 ast_channel_name(chan), access->direction, ast_format_get_name(best_set_fmt));
5684
5685 ast_channel_lock(chan);
5687 if (!cap_native
5688 || ast_format_cap_append(cap_native, best_set_fmt, 0)) {
5689 ast_channel_unlock(chan);
5690 ao2_cleanup(cap_native);
5691 return -1;
5692 }
5693 ast_channel_nativeformats_set(chan, cap_native);
5694 ao2_cleanup(cap_native);
5695 access->set_format(chan, best_set_fmt);
5696 access->set_rawformat(chan, best_set_fmt);
5697
5698 trans_pvt = access->get_trans(chan);
5699 if (trans_pvt) {
5700 ast_translator_free_path(trans_pvt);
5701 access->set_trans(chan, NULL);
5702 }
5703 ast_channel_unlock(chan);
5704
5705 /* If there is a generator on the channel, it needs to know about this
5706 * change if it is the write format. */
5707 if (direction && ast_channel_generatordata(chan)) {
5709 }
5710
5711 return 0;
5712 }
5713
5714 ast_channel_lock(chan);
5715
5716 format = access->get_format(chan);
5717 rawformat = access->get_rawformat(chan);
5718 ast_assert(format != NULL);
5719 ast_assert(rawformat != NULL);
5720
5721 cap_native = ast_channel_nativeformats(chan);
5722 if (ast_format_cap_empty(cap_native)) {
5723 ast_channel_unlock(chan);
5724 ast_log(LOG_ERROR, "Unable to set format because channel %s supports no formats\n",
5725 ast_channel_name(chan));
5726 return -1;
5727 }
5728
5729 /* Find a translation path from the native format to one of the desired formats */
5730 if (!direction) {
5731 /* reading */
5732 res = ast_translator_best_choice(cap_set, cap_native, &best_set_fmt, &best_native_fmt);
5733 } else {
5734 /* writing */
5735 res = ast_translator_best_choice(cap_native, cap_set, &best_native_fmt, &best_set_fmt);
5736 }
5737 if (res < 0) {
5738 struct ast_str *codec_native = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
5739 struct ast_str *codec_set = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
5740
5741 ast_format_cap_get_names(cap_native, &codec_native);
5742 ast_channel_unlock(chan);
5743 ast_format_cap_get_names(cap_set, &codec_set);
5744
5745 ast_log(LOG_WARNING, "Unable to find a codec translation path: %s -> %s\n",
5746 ast_str_buffer(direction ? codec_set : codec_native),
5747 ast_str_buffer(direction ? codec_native : codec_set));
5748 return -1;
5749 }
5750
5751 /* Now we have a good choice for both. */
5752 trans_pvt = access->get_trans(chan);
5753 if ((ast_format_cmp(rawformat, best_native_fmt) != AST_FORMAT_CMP_NOT_EQUAL) &&
5754 (ast_format_cmp(format, best_set_fmt) != AST_FORMAT_CMP_NOT_EQUAL) &&
5755 ((ast_format_cmp(rawformat, format) != AST_FORMAT_CMP_NOT_EQUAL) || access->get_trans(chan))) {
5756 /* the channel is already in these formats, so nothing to do, unless the interleaved format is not set correctly */
5757 if (trans_pvt != NULL) {
5758 if (trans_pvt->interleaved_stereo == interleaved_stereo) {
5759 ast_channel_unlock(chan);
5760 return 0;
5761 }
5762 }
5763 }
5764
5765 /* Free any translation we have right now */
5766 if (trans_pvt) {
5767 ast_translator_free_path(trans_pvt);
5768 access->set_trans(chan, NULL);
5769 }
5770
5771 /* Build a translation path from the raw format to the desired format */
5772 if (ast_format_cmp(best_set_fmt, best_native_fmt) != AST_FORMAT_CMP_NOT_EQUAL) {
5773 /*
5774 * If we were able to swap the native format to the format that
5775 * has been requested, then there is no need to try to build
5776 * a translation path.
5777 */
5778 res = 0;
5779 } else {
5780 if (!direction) {
5781 /* reading */
5782 trans_pvt = ast_translator_build_path(best_set_fmt, best_native_fmt);
5783 if (trans_pvt) {
5784 trans_pvt->interleaved_stereo = 0;
5785 }
5786 } else {
5787 /* writing */
5788 trans_pvt = ast_translator_build_path(best_native_fmt, best_set_fmt);
5789 if (trans_pvt) {
5790 trans_pvt->interleaved_stereo = interleaved_stereo;
5791 }
5792 }
5793 access->set_trans(chan, trans_pvt);
5794 res = trans_pvt ? 0 : -1;
5795 }
5796
5797 if (!res) {
5798 access->set_format(chan, best_set_fmt);
5799 access->set_rawformat(chan, best_native_fmt);
5800
5801 ast_debug(1, "Channel %s setting %s format path: %s -> %s\n",
5802 ast_channel_name(chan),
5803 access->direction,
5804 ast_format_get_name(direction ? best_set_fmt : best_native_fmt),
5805 ast_format_get_name(direction ? best_native_fmt : best_set_fmt));
5806 }
5807
5808 ast_channel_unlock(chan);
5809
5810 /* If there is a generator on the channel, it needs to know about this
5811 * change if it is the write format. */
5812 if (direction && ast_channel_generatordata(chan)) {
5814 }
5815
5816 return res;
5817}
static void generator_write_format_change(struct ast_channel *chan)
Definition channel.c:2942
int ast_channel_setoption(struct ast_channel *chan, int option, void *data, int datalen, int block)
Sets an option on a channel.
Definition channel.c:7496
static const struct set_format_access set_format_access_write
Definition channel.c:5639
static const struct set_format_access set_format_access_read
Definition channel.c:5628
struct ast_format * ast_format_cap_get_best_by_type(const struct ast_format_cap *cap, enum ast_media_type type)
Get the most preferred format for a particular media type.
Definition format_cap.c:417
int interleaved_stereo
Definition translate.h:238
struct ast_format *(* get_format)(struct ast_channel *chan)
Definition channel.c:5621
void(* set_trans)(struct ast_channel *chan, struct ast_trans_pvt *value)
Definition channel.c:5620
void(* set_rawformat)(struct ast_channel *chan, struct ast_format *format)
Definition channel.c:5624
struct ast_trans_pvt *(* get_trans)(const struct ast_channel *chan)
Definition channel.c:5619
void(* set_format)(struct ast_channel *chan, struct ast_format *format)
Definition channel.c:5622
const char * direction
Definition channel.c:5618
struct ast_format *(* get_rawformat)(struct ast_channel *chan)
Definition channel.c:5623

References ao2_cleanup, ast_assert, ast_channel_generatordata(), ast_channel_lock, ast_channel_name(), ast_channel_nativeformats(), ast_channel_nativeformats_set(), ast_channel_setoption(), ast_channel_unlock, ast_debug, ast_format_cap_alloc, ast_format_cap_append, ast_format_cap_empty(), AST_FORMAT_CAP_FLAG_DEFAULT, ast_format_cap_get_best_by_type(), ast_format_cap_get_names(), AST_FORMAT_CAP_NAMES_LEN, ast_format_cmp(), AST_FORMAT_CMP_NOT_EQUAL, ast_format_get_name(), ast_log, AST_MEDIA_TYPE_AUDIO, ast_str_alloca, ast_str_buffer(), ast_translator_best_choice(), ast_translator_build_path(), ast_translator_free_path(), set_format_access::direction, generator_write_format_change(), set_format_access::get_format, set_format_access::get_rawformat, set_format_access::get_trans, ast_trans_pvt::interleaved_stereo, LOG_ERROR, LOG_WARNING, NULL, RAII_VAR, set_format_access::set_format, set_format_access_read, set_format_access_write, set_format_access::set_rawformat, set_format_access::set_trans, and set_format_access::setoption.

Referenced by ast_set_read_format(), ast_set_read_format_from_cap(), ast_set_write_format(), ast_set_write_format_from_cap(), and ast_set_write_format_interleaved_stereo().

◆ set_security_requirements()

static int set_security_requirements ( const struct ast_channel requestor,
struct ast_channel out 
)
static

Definition at line 6236 of file channel.c.

6237{
6238 int ops[2][2] = {
6241 };
6242 int i;
6243 struct ast_channel *r = (struct ast_channel *) requestor; /* UGLY */
6244 struct ast_datastore *ds;
6245
6246 if (!requestor || !out) {
6247 return 0;
6248 }
6249
6252 struct ast_secure_call_store *encrypt = ds->data;
6253 ops[0][1] = encrypt->signaling;
6254 ops[1][1] = encrypt->media;
6255 } else {
6257 return 0;
6258 }
6260
6261 for (i = 0; i < 2; i++) {
6262 if (ops[i][1]) {
6263 if (ast_channel_setoption(out, ops[i][0], &ops[i][1], sizeof(ops[i][1]), 0)) {
6264 /* We require a security feature, but the channel won't provide it */
6265 return -1;
6266 }
6267 } else {
6268 /* We don't care if we can't clear the option on a channel that doesn't support it */
6269 ast_channel_setoption(out, ops[i][0], &ops[i][1], sizeof(ops[i][1]), 0);
6270 }
6271 }
6272
6273 return 0;
6274}
const struct ast_datastore_info secure_call_info
#define AST_OPTION_SECURE_MEDIA
#define AST_OPTION_SECURE_SIGNALING
FILE * out
Definition utils/frame.c:33

References ast_channel_datastore_find(), ast_channel_lock, ast_channel_setoption(), ast_channel_unlock, AST_OPTION_SECURE_MEDIA, AST_OPTION_SECURE_SIGNALING, ast_datastore::data, ast_secure_call_store::media, NULL, out, secure_call_info, and ast_secure_call_store::signaling.

Referenced by request_channel().

◆ should_skip_dtmf()

static int should_skip_dtmf ( struct ast_channel chan)
inlinestatic

Determine whether or not we should ignore DTMF in the readq.

Definition at line 3535 of file channel.c.

3536{
3538 /* We're in the middle of emulating a digit, or DTMF has been
3539 * explicitly deferred. Skip this digit, then. */
3540 return 1;
3541 }
3542
3543 if (!ast_tvzero(*ast_channel_dtmf_tv(chan)) &&
3545 /* We're not in the middle of a digit, but it hasn't been long enough
3546 * since the last digit, so we'll have to skip DTMF for now. */
3547 return 1;
3548 }
3549
3550 return 0;
3551}

References ast_channel_dtmf_tv(), ast_channel_flags(), AST_FLAG_DEFER_DTMF, AST_FLAG_EMULATE_DTMF, AST_MIN_DTMF_GAP, ast_test_flag, ast_tvdiff_ms(), ast_tvnow(), and ast_tvzero().

Referenced by __ast_read().

◆ should_trigger_dtmf_emulating()

static int should_trigger_dtmf_emulating ( struct ast_channel chan)
inlinestatic

Determine whether or not we have to trigger dtmf emulating using 50 fps timer events especially when no voice frames are received during dtmf processing (direct media or muted sender case using SIP INFO)

Definition at line 2889 of file channel.c.

2890{
2892 /* We're in the middle of emulating a digit, or DTMF has been
2893 * explicitly deferred. Trigger dtmf with periodic 50 pfs timer events, then. */
2894 return 1;
2895 }
2896
2897 if (!ast_tvzero(*ast_channel_dtmf_tv(chan)) &&
2899 /*
2900 * We're not in the middle of a digit, but it hasn't been long enough
2901 * since the last digit, so we'll have to trigger DTMF further on.
2902 * Using 2 times AST_MIN_DTMF_GAP to trigger readq reading for possible
2903 * buffered next dtmf event
2904 */
2905 return 1;
2906 }
2907
2908 return 0;
2909}

References ast_channel_dtmf_tv(), ast_channel_flags(), AST_FLAG_DEFER_DTMF, AST_FLAG_EMULATE_DTMF, AST_MIN_DTMF_GAP, ast_test_flag, ast_tvdiff_ms(), ast_tvnow(), and ast_tvzero().

Referenced by __ast_read(), and ast_deactivate_generator().

◆ silence_generator_alloc()

static void * silence_generator_alloc ( struct ast_channel chan,
void *  data 
)
static

Definition at line 8230 of file channel.c.

8231{
8232 /* just store the data pointer in the channel structure */
8233 return data;
8234}

◆ silence_generator_generate()

static int silence_generator_generate ( struct ast_channel chan,
void *  data,
int  len,
int  samples 
)
static

Definition at line 8241 of file channel.c.

8242{
8243 short buf[samples];
8244 struct ast_frame frame = {
8246 .data.ptr = buf,
8247 .samples = samples,
8248 .datalen = sizeof(buf),
8249 };
8251
8252 memset(buf, 0, sizeof(buf));
8253
8254 if (ast_write(chan, &frame))
8255 return -1;
8256
8257 return 0;
8258}

References ast_format_slin, AST_FRAME_VOICE, ast_write(), buf, ast_frame_subclass::format, ast_frame::frametype, ast_frame::samples, and ast_frame::subclass.

◆ silence_generator_release()

static void silence_generator_release ( struct ast_channel chan,
void *  data 
)
static

Definition at line 8236 of file channel.c.

8237{
8238 /* nothing to do */
8239}

◆ suppress_datastore_destroy_cb()

static void suppress_datastore_destroy_cb ( void *  data)
static

Definition at line 10814 of file channel.c.

10815{
10816 ao2_cleanup(data);
10817}

References ao2_cleanup.

◆ suppress_framehook_destroy_cb()

static void suppress_framehook_destroy_cb ( void *  data)
static

Definition at line 10824 of file channel.c.

10825{
10826 ao2_cleanup(data);
10827}

References ao2_cleanup.

Referenced by ast_channel_suppress().

◆ suppress_framehook_event_cb()

static struct ast_frame * suppress_framehook_event_cb ( struct ast_channel chan,
struct ast_frame frame,
enum ast_framehook_event  event,
void *  data 
)
static

Definition at line 10842 of file channel.c.

10843{
10844 struct suppress_data *suppress = data;
10845 int suppress_frame = 0;
10846
10847 if (!frame) {
10848 return NULL;
10849 }
10850
10851 if (frame->frametype != suppress->frametype) {
10852 return frame;
10853 }
10854
10856 suppress_frame = 1;
10857 } else if (event == AST_FRAMEHOOK_EVENT_WRITE && (suppress->direction & AST_MUTE_DIRECTION_WRITE)) {
10858 suppress_frame = 1;
10859 }
10860
10861 if (suppress_frame) {
10862 switch (frame->frametype) {
10863 case AST_FRAME_VOICE:
10865 ast_frfree(frame);
10866 }
10867 frame = &ast_null_frame;
10868 break;
10869 default:
10870 break;
10871 }
10872 }
10873
10874 return frame;
10875}
#define AST_MUTE_DIRECTION_READ
Definition channel.h:4837
#define AST_MUTE_DIRECTION_WRITE
Definition channel.h:4838
@ AST_FRAMEHOOK_EVENT_WRITE
Definition framehook.h:153
@ AST_FRAMEHOOK_EVENT_READ
Definition framehook.h:152

References AST_FRAME_VOICE, AST_FRAMEHOOK_EVENT_READ, AST_FRAMEHOOK_EVENT_WRITE, ast_frfree, AST_MUTE_DIRECTION_READ, AST_MUTE_DIRECTION_WRITE, ast_null_frame, suppress_data::direction, ast_frame::frametype, suppress_data::frametype, and NULL.

Referenced by ast_channel_suppress().

◆ suppress_framehook_fixup_cb()

static void suppress_framehook_fixup_cb ( void *  data,
int  framehook_id,
struct ast_channel old_chan,
struct ast_channel new_chan 
)
static

Definition at line 10835 of file channel.c.

10836{
10837 struct suppress_data *suppress = data;
10838
10839 suppress->framehook_id = framehook_id;
10840}

References suppress_data::framehook_id.

Referenced by ast_channel_suppress().

◆ suppress_get_datastore_information()

static const struct ast_datastore_info * suppress_get_datastore_information ( enum ast_frame_type  frametype)
static

Definition at line 10877 of file channel.c.

10878{
10879 switch (frametype) {
10880 case AST_FRAME_VOICE:
10882 default:
10883 return NULL;
10884 }
10885}
static const struct ast_datastore_info suppress_datastore_voice
Definition channel.c:10819

References AST_FRAME_VOICE, NULL, and suppress_datastore_voice.

Referenced by ast_channel_suppress(), and ast_channel_unsuppress().

◆ tech_write()

static int tech_write ( struct ast_channel chan,
struct ast_stream stream,
struct ast_stream default_stream,
struct ast_frame frame 
)
static

Definition at line 5189 of file channel.c.

5191{
5192 if (ast_channel_tech(chan)->write_stream) {
5193 return stream ? ast_channel_tech(chan)->write_stream(
5194 chan, ast_stream_get_position(stream), frame) : 0;
5195 }
5196
5197 return ((stream == default_stream) && ast_channel_tech(chan)->write) ?
5198 ast_channel_tech(chan)->write(chan, frame) : 0;
5199}

References ast_stream_get_position(), ast_channel_tech::write, write_stream(), and ast_channel_tech::write_stream.

Referenced by ast_write_stream().

◆ tonepair_alloc()

static void * tonepair_alloc ( struct ast_channel chan,
void *  params 
)
static

Definition at line 7572 of file channel.c.

7573{
7574 struct tonepair_state *ts;
7575 struct tonepair_def *td = params;
7576
7577 if (!(ts = ast_calloc(1, sizeof(*ts)))) {
7578 return NULL;
7579 }
7580
7583 ast_log(LOG_WARNING, "Unable to set '%s' to signed linear format (write)\n", ast_channel_name(chan));
7585 ts = NULL;
7586 } else {
7587 ts->fac1 = 2.0 * cos(2.0 * M_PI * (td->freq1 / 8000.0)) * 32768.0;
7588 ts->v1_1 = 0;
7589 ts->v2_1 = sin(-4.0 * M_PI * (td->freq1 / 8000.0)) * td->vol;
7590 ts->v3_1 = sin(-2.0 * M_PI * (td->freq1 / 8000.0)) * td->vol;
7591 ts->v2_1 = 0;
7592 ts->fac2 = 2.0 * cos(2.0 * M_PI * (td->freq2 / 8000.0)) * 32768.0;
7593 ts->v2_2 = sin(-4.0 * M_PI * (td->freq2 / 8000.0)) * td->vol;
7594 ts->v3_2 = sin(-2.0 * M_PI * (td->freq2 / 8000.0)) * td->vol;
7595 ts->duration = td->duration;
7596 ts->modulate = 0;
7597 }
7598 /* Let interrupts interrupt :) */
7600 return ts;
7601}
unsigned int cos
Definition chan_iax2.c:393
static void tonepair_release(struct ast_channel *chan, void *params)
Definition channel.c:7561
#define M_PI
Definition resample.c:83
struct ast_format * origwfmt
Definition channel.c:7552

References ao2_bump, ast_calloc, ast_channel_flags(), ast_channel_name(), ast_channel_writeformat(), AST_FLAG_WRITE_INT, ast_format_slin, ast_log, ast_set_flag, ast_set_write_format(), cos, tonepair_def::duration, tonepair_state::duration, tonepair_state::fac1, tonepair_state::fac2, tonepair_def::freq1, tonepair_def::freq2, LOG_WARNING, M_PI, tonepair_state::modulate, NULL, tonepair_state::origwfmt, tonepair_release(), tonepair_state::v1_1, tonepair_state::v2_1, tonepair_state::v2_2, tonepair_state::v3_1, tonepair_state::v3_2, and tonepair_def::vol.

◆ tonepair_generator()

static int tonepair_generator ( struct ast_channel chan,
void *  data,
int  len,
int  samples 
)
static

Definition at line 7603 of file channel.c.

7604{
7605 struct tonepair_state *ts = data;
7606 int x;
7607
7608 /* we need to prepare a frame with 16 * timelen samples as we're
7609 * generating SLIN audio
7610 */
7611 len = samples * 2;
7612
7613 if (len > sizeof(ts->data) / 2 - 1) {
7614 ast_log(LOG_WARNING, "Can't generate that much data!\n");
7615 return -1;
7616 }
7617 memset(&ts->f, 0, sizeof(ts->f));
7618 for (x=0;x<len/2;x++) {
7619 ts->v1_1 = ts->v2_1;
7620 ts->v2_1 = ts->v3_1;
7621 ts->v3_1 = (ts->fac1 * ts->v2_1 >> 15) - ts->v1_1;
7622
7623 ts->v1_2 = ts->v2_2;
7624 ts->v2_2 = ts->v3_2;
7625 ts->v3_2 = (ts->fac2 * ts->v2_2 >> 15) - ts->v1_2;
7626 if (ts->modulate) {
7627 int p;
7628 p = ts->v3_2 - 32768;
7629 if (p < 0) p = -p;
7630 p = ((p * 9) / 10) + 1;
7631 ts->data[x] = (ts->v3_1 * p) >> 15;
7632 } else
7633 ts->data[x] = ts->v3_1 + ts->v3_2;
7634 }
7637 ts->f.datalen = len;
7638 ts->f.samples = samples;
7640 ts->f.data.ptr = ts->data;
7641 ast_write(chan, &ts->f);
7642 ts->pos += x;
7643 if (ts->duration > 0) {
7644 if (ts->pos >= ts->duration * 8)
7645 return -1;
7646 }
7647 return 0;
7648}
struct ast_frame f
Definition channel.c:7556
short data[4000]
Definition channel.c:7558

References ast_format_slin, AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_log, ast_write(), ast_frame::data, tonepair_state::data, ast_frame::datalen, tonepair_state::duration, tonepair_state::f, tonepair_state::fac1, tonepair_state::fac2, ast_frame_subclass::format, ast_frame::frametype, len(), LOG_WARNING, tonepair_state::modulate, ast_frame::offset, tonepair_state::pos, ast_frame::ptr, ast_frame::samples, ast_frame::subclass, tonepair_state::v1_1, tonepair_state::v1_2, tonepair_state::v2_1, tonepair_state::v2_2, tonepair_state::v3_1, and tonepair_state::v3_2.

◆ tonepair_release()

static void tonepair_release ( struct ast_channel chan,
void *  params 
)
static

Definition at line 7561 of file channel.c.

7562{
7563 struct tonepair_state *ts = params;
7564
7565 if (chan) {
7566 ast_set_write_format(chan, ts->origwfmt);
7567 }
7568 ao2_cleanup(ts->origwfmt);
7569 ast_free(ts);
7570}

References ao2_cleanup, ast_free, ast_set_write_format(), and tonepair_state::origwfmt.

Referenced by tonepair_alloc().

◆ varshead_dtor()

static void varshead_dtor ( void *  obj)
static

Destructor for lists of variables.

Parameters
objAO2 object.

Definition at line 7948 of file channel.c.

7949{
7950 struct varshead *head = obj;
7951 struct ast_var_t *var;
7952
7953 while ((var = AST_RWLIST_REMOVE_HEAD(head, entries))) {
7955 }
7956}

References AST_RWLIST_REMOVE_HEAD, ast_var_delete(), ast_var_t::entries, and var.

Referenced by ast_channel_get_vars(), and channel_get_external_vars().

Variable Documentation

◆ ami_vars

struct external_vars ami_vars
static

◆ ari_vars

struct external_vars ari_vars
static

◆ ast_kill_tech

const struct ast_channel_tech ast_kill_tech

Kill the channel channel driver technology descriptor.

The purpose of this channel technology is to encourage the channel to hangup as quickly as possible.

Note
Used by DTMF atxfer and zombie channels.

Definition at line 435 of file channel.c.

435 {
436 .type = "Kill",
437 .description = "Kill channel (should not see this)",
438 .read = kill_read,
439 .exception = kill_exception,
440 .write = kill_write,
441 .fixup = kill_fixup,
442 .hangup = kill_hangup,
443};
static int kill_write(struct ast_channel *chan, struct ast_frame *frame)
Definition channel.c:408
static struct ast_frame * kill_exception(struct ast_channel *chan)
Definition channel.c:402
static struct ast_frame * kill_read(struct ast_channel *chan)
Definition channel.c:396
static int kill_hangup(struct ast_channel *chan)
Definition channel.c:420
static int kill_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
Definition channel.c:414

◆ ast_moh_cleanup_ptr

void(* ast_moh_cleanup_ptr) (struct ast_channel *) ( struct ast_channel ) = NULL
static

◆ ast_moh_start_ptr

int(* ast_moh_start_ptr) (struct ast_channel *, const char *, const char *) ( struct ast_channel ,
const char *  ,
const char *   
) = NULL
static

◆ ast_moh_stop_ptr

void(* ast_moh_stop_ptr) (struct ast_channel *) ( struct ast_channel ) = NULL
static

◆ backends

◆ bridge_features_info

const struct ast_datastore_info bridge_features_info
static
Initial value:
= {
.type = "bridge-features",
.destroy = features_destroy,
}
static void features_destroy(void *obj)
Definition channel.c:11003

Definition at line 11008 of file channel.c.

11008 {
11009 .type = "bridge-features",
11010 .destroy = features_destroy,
11011};

Referenced by ast_channel_feature_hooks_get(), and channel_feature_hooks_set_full().

◆ causes

const struct causes_map causes[]
static

Definition at line 137 of file channel.c.

137 {
138 { AST_CAUSE_UNALLOCATED, "UNALLOCATED", "Unallocated (unassigned) number" },
139 { AST_CAUSE_NO_ROUTE_TRANSIT_NET, "NO_ROUTE_TRANSIT_NET", "No route to specified transmit network" },
140 { AST_CAUSE_NO_ROUTE_DESTINATION, "NO_ROUTE_DESTINATION", "No route to destination" },
141 { AST_CAUSE_MISDIALLED_TRUNK_PREFIX, "MISDIALLED_TRUNK_PREFIX", "Misdialed trunk prefix" },
142 { AST_CAUSE_CHANNEL_UNACCEPTABLE, "CHANNEL_UNACCEPTABLE", "Channel unacceptable" },
143 { AST_CAUSE_CALL_AWARDED_DELIVERED, "CALL_AWARDED_DELIVERED", "Call awarded and being delivered in an established channel" },
144 { AST_CAUSE_PRE_EMPTED, "PRE_EMPTED", "Pre-empted" },
145 { AST_CAUSE_NUMBER_PORTED_NOT_HERE, "NUMBER_PORTED_NOT_HERE", "Number ported elsewhere" },
146 { AST_CAUSE_NORMAL_CLEARING, "NORMAL_CLEARING", "Normal Clearing" },
147 { AST_CAUSE_USER_BUSY, "USER_BUSY", "User busy" },
148 { AST_CAUSE_NO_USER_RESPONSE, "NO_USER_RESPONSE", "No user responding" },
149 { AST_CAUSE_NO_ANSWER, "NO_ANSWER", "User alerting, no answer" },
150 { AST_CAUSE_SUBSCRIBER_ABSENT, "SUBSCRIBER_ABSENT", "Subscriber absent" },
151 { AST_CAUSE_CALL_REJECTED, "CALL_REJECTED", "Call Rejected" },
152 { AST_CAUSE_NUMBER_CHANGED, "NUMBER_CHANGED", "Number changed" },
153 { AST_CAUSE_REDIRECTED_TO_NEW_DESTINATION, "REDIRECTED_TO_NEW_DESTINATION", "Redirected to new destination" },
154 { AST_CAUSE_ANSWERED_ELSEWHERE, "ANSWERED_ELSEWHERE", "Answered elsewhere" },
155 { AST_CAUSE_DESTINATION_OUT_OF_ORDER, "DESTINATION_OUT_OF_ORDER", "Destination out of order" },
156 { AST_CAUSE_INVALID_NUMBER_FORMAT, "INVALID_NUMBER_FORMAT", "Invalid number format" },
157 { AST_CAUSE_FACILITY_REJECTED, "FACILITY_REJECTED", "Facility rejected" },
158 { AST_CAUSE_RESPONSE_TO_STATUS_ENQUIRY, "RESPONSE_TO_STATUS_ENQUIRY", "Response to STATus ENQuiry" },
159 { AST_CAUSE_NORMAL_UNSPECIFIED, "NORMAL_UNSPECIFIED", "Normal, unspecified" },
160 { AST_CAUSE_NORMAL_CIRCUIT_CONGESTION, "NORMAL_CIRCUIT_CONGESTION", "Circuit/channel congestion" },
161 { AST_CAUSE_NETWORK_OUT_OF_ORDER, "NETWORK_OUT_OF_ORDER", "Network out of order" },
162 { AST_CAUSE_NORMAL_TEMPORARY_FAILURE, "NORMAL_TEMPORARY_FAILURE", "Temporary failure" },
163 { AST_CAUSE_SWITCH_CONGESTION, "SWITCH_CONGESTION", "Switching equipment congestion" },
164 { AST_CAUSE_ACCESS_INFO_DISCARDED, "ACCESS_INFO_DISCARDED", "Access information discarded" },
165 { AST_CAUSE_REQUESTED_CHAN_UNAVAIL, "REQUESTED_CHAN_UNAVAIL", "Requested channel not available" },
166 { AST_CAUSE_FACILITY_NOT_SUBSCRIBED, "FACILITY_NOT_SUBSCRIBED", "Facility not subscribed" },
167 { AST_CAUSE_OUTGOING_CALL_BARRED, "OUTGOING_CALL_BARRED", "Outgoing call barred" },
168 { AST_CAUSE_INCOMING_CALL_BARRED, "INCOMING_CALL_BARRED", "Incoming call barred" },
169 { AST_CAUSE_BEARERCAPABILITY_NOTAUTH, "BEARERCAPABILITY_NOTAUTH", "Bearer capability not authorized" },
170 { AST_CAUSE_BEARERCAPABILITY_NOTAVAIL, "BEARERCAPABILITY_NOTAVAIL", "Bearer capability not available" },
171 { AST_CAUSE_BEARERCAPABILITY_NOTIMPL, "BEARERCAPABILITY_NOTIMPL", "Bearer capability not implemented" },
172 { AST_CAUSE_CHAN_NOT_IMPLEMENTED, "CHAN_NOT_IMPLEMENTED", "Channel not implemented" },
173 { AST_CAUSE_FACILITY_NOT_IMPLEMENTED, "FACILITY_NOT_IMPLEMENTED", "Facility not implemented" },
174 { AST_CAUSE_INVALID_CALL_REFERENCE, "INVALID_CALL_REFERENCE", "Invalid call reference value" },
175 { AST_CAUSE_INCOMPATIBLE_DESTINATION, "INCOMPATIBLE_DESTINATION", "Incompatible destination" },
176 { AST_CAUSE_INVALID_MSG_UNSPECIFIED, "INVALID_MSG_UNSPECIFIED", "Invalid message unspecified" },
177 { AST_CAUSE_MANDATORY_IE_MISSING, "MANDATORY_IE_MISSING", "Mandatory information element is missing" },
178 { AST_CAUSE_MESSAGE_TYPE_NONEXIST, "MESSAGE_TYPE_NONEXIST", "Message type nonexist." },
179 { AST_CAUSE_WRONG_MESSAGE, "WRONG_MESSAGE", "Wrong message" },
180 { AST_CAUSE_IE_NONEXIST, "IE_NONEXIST", "Info. element nonexist or not implemented" },
181 { AST_CAUSE_INVALID_IE_CONTENTS, "INVALID_IE_CONTENTS", "Invalid information element contents" },
182 { AST_CAUSE_WRONG_CALL_STATE, "WRONG_CALL_STATE", "Message not compatible with call state" },
183 { AST_CAUSE_RECOVERY_ON_TIMER_EXPIRE, "RECOVERY_ON_TIMER_EXPIRE", "Recover on timer expiry" },
184 { AST_CAUSE_MANDATORY_IE_LENGTH_ERROR, "MANDATORY_IE_LENGTH_ERROR", "Mandatory IE length error" },
185 { AST_CAUSE_PROTOCOL_ERROR, "PROTOCOL_ERROR", "Protocol error, unspecified" },
186 { AST_CAUSE_INTERWORKING, "INTERWORKING", "Interworking, unspecified" },
187};
#define AST_CAUSE_SWITCH_CONGESTION
Definition causes.h:123
#define AST_CAUSE_NUMBER_PORTED_NOT_HERE
Definition causes.h:105
#define AST_CAUSE_INVALID_IE_CONTENTS
Definition causes.h:141
#define AST_CAUSE_UNALLOCATED
Definition causes.h:98
#define AST_CAUSE_INTERWORKING
Definition causes.h:146
#define AST_CAUSE_PROTOCOL_ERROR
Definition causes.h:145
#define AST_CAUSE_NUMBER_CHANGED
Definition causes.h:112
#define AST_CAUSE_CALL_AWARDED_DELIVERED
Definition causes.h:103
#define AST_CAUSE_INVALID_NUMBER_FORMAT
Definition causes.h:116
#define AST_CAUSE_OUTGOING_CALL_BARRED
Definition causes.h:127
#define AST_CAUSE_CHAN_NOT_IMPLEMENTED
Definition causes.h:132
#define AST_CAUSE_WRONG_MESSAGE
Definition causes.h:139
#define AST_CAUSE_INCOMPATIBLE_DESTINATION
Definition causes.h:135
#define AST_CAUSE_BEARERCAPABILITY_NOTAUTH
Definition causes.h:129
#define AST_CAUSE_DESTINATION_OUT_OF_ORDER
Definition causes.h:115
#define AST_CAUSE_NO_USER_RESPONSE
Definition causes.h:108
#define AST_CAUSE_NORMAL_TEMPORARY_FAILURE
Definition causes.h:122
#define AST_CAUSE_MESSAGE_TYPE_NONEXIST
Definition causes.h:138
#define AST_CAUSE_MANDATORY_IE_LENGTH_ERROR
Definition causes.h:144
#define AST_CAUSE_REDIRECTED_TO_NEW_DESTINATION
Definition causes.h:113
#define AST_CAUSE_FACILITY_NOT_SUBSCRIBED
Definition causes.h:126
#define AST_CAUSE_BEARERCAPABILITY_NOTIMPL
Definition causes.h:131
#define AST_CAUSE_WRONG_CALL_STATE
Definition causes.h:142
#define AST_CAUSE_PRE_EMPTED
Definition causes.h:104
#define AST_CAUSE_REQUESTED_CHAN_UNAVAIL
Definition causes.h:125
#define AST_CAUSE_NORMAL_CIRCUIT_CONGESTION
Definition causes.h:120
#define AST_CAUSE_CHANNEL_UNACCEPTABLE
Definition causes.h:102
#define AST_CAUSE_CALL_REJECTED
Definition causes.h:111
#define AST_CAUSE_SUBSCRIBER_ABSENT
Definition causes.h:110
#define AST_CAUSE_NETWORK_OUT_OF_ORDER
Definition causes.h:121
#define AST_CAUSE_INVALID_CALL_REFERENCE
Definition causes.h:134
#define AST_CAUSE_FACILITY_REJECTED
Definition causes.h:117
#define AST_CAUSE_ANSWERED_ELSEWHERE
Definition causes.h:114
#define AST_CAUSE_NORMAL_UNSPECIFIED
Definition causes.h:119
#define AST_CAUSE_FACILITY_NOT_IMPLEMENTED
Definition causes.h:133
#define AST_CAUSE_INCOMING_CALL_BARRED
Definition causes.h:128
#define AST_CAUSE_MANDATORY_IE_MISSING
Definition causes.h:137
#define AST_CAUSE_ACCESS_INFO_DISCARDED
Definition causes.h:124
#define AST_CAUSE_RECOVERY_ON_TIMER_EXPIRE
Definition causes.h:143
#define AST_CAUSE_NO_ROUTE_TRANSIT_NET
Definition causes.h:99
#define AST_CAUSE_RESPONSE_TO_STATUS_ENQUIRY
Definition causes.h:118
#define AST_CAUSE_NO_ROUTE_DESTINATION
Definition causes.h:100
#define AST_CAUSE_INVALID_MSG_UNSPECIFIED
Definition causes.h:136
#define AST_CAUSE_NORMAL_CLEARING
Definition causes.h:106
#define AST_CAUSE_MISDIALLED_TRUNK_PREFIX
Definition causes.h:101
#define AST_CAUSE_IE_NONEXIST
Definition causes.h:140
#define AST_CAUSE_USER_BUSY
Definition causes.h:107

Referenced by ast_cause2str(), ast_str2cause(), and dump_cause().

◆ cc_channel_datastore_info

const struct ast_datastore_info cc_channel_datastore_info
static
Initial value:
= {
.type = "Call Completion",
.duplicate = channel_cc_params_copy,
}
static void * channel_cc_params_copy(void *data)
Definition channel.c:10534
static void channel_cc_params_destroy(void *data)
Definition channel.c:10545

Definition at line 10551 of file channel.c.

10551 {
10552 .type = "Call Completion",
10553 .duplicate = channel_cc_params_copy,
10554 .destroy = channel_cc_params_destroy,
10555};

Referenced by ast_channel_cc_params_init(), and ast_channel_get_cc_config_params().

◆ chancount

int chancount
static

◆ channel_move_lock

ast_mutex_t channel_move_lock = AST_MUTEX_INIT_VALUE
static

Mutex that prevents multiple ast_channel_move() operations from occurring simultaneously. This is necessary since the involved channels have to be locked and unlocked throughout the move operation.

The most important data being protected are the masq and masqr data on channels. We don't want them getting criss-crossed due to multiple moves mucking with them.

Definition at line 10774 of file channel.c.

Referenced by ast_channel_move().

◆ cli_channel

struct ast_cli_entry cli_channel[]
static
Initial value:
= {
{ .handler = handle_cli_core_show_channeltypes , .summary = "List available channel types" ,},
{ .handler = handle_cli_core_show_channeltype , .summary = "Give more details on that channel type" ,}
}
static char * handle_cli_core_show_channeltype(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
Show details about a channel driver - CLI command.
Definition channel.c:327
static char * handle_cli_core_show_channeltypes(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
Show channel types - CLI command.
Definition channel.c:262

Definition at line 391 of file channel.c.

391 {
392 AST_CLI_DEFINE(handle_cli_core_show_channeltypes, "List available channel types"),
393 AST_CLI_DEFINE(handle_cli_core_show_channeltype, "Give more details on that channel type")
394};
#define AST_CLI_DEFINE(fn, txt,...)
Definition cli.h:197

Referenced by ast_channels_init(), and channels_shutdown().

◆ global_fin

unsigned long global_fin

The current value of the debug flags is stored in the two variables global_fin and global_fout (declared in main/channel.c)

Definition at line 99 of file channel.c.

Referenced by __ast_channel_alloc_ap(), and handle_core_set_debug_channel().

◆ global_fout

unsigned long global_fout

Definition at line 99 of file channel.c.

Referenced by __ast_channel_alloc_ap().

◆ null_tech

const struct ast_channel_tech null_tech
static
Initial value:
= {
.type = "NULL",
.description = "Null channel (should not see this)",
}

Definition at line 703 of file channel.c.

703 {
704 .type = "NULL",
705 .description = "Null channel (should not see this)",
706};

Referenced by __ast_channel_alloc_ap().

◆ plc_ds_info

const struct ast_datastore_info plc_ds_info
static
Initial value:
= {
.type = "plc",
.destroy = plc_ds_destroy,
}
static void plc_ds_destroy(void *data)
Definition channel.c:5098

Definition at line 5105 of file channel.c.

5105 {
5106 .type = "plc",
5107 .destroy = plc_ds_destroy,
5108};

Referenced by apply_plc().

◆ set_format_access_read

const struct set_format_access set_format_access_read
static

Definition at line 5628 of file channel.c.

5628 {
5629 .direction = "read",
5630 .get_trans = ast_channel_readtrans,
5631 .set_trans = ast_channel_readtrans_set,
5632 .get_format = ast_channel_readformat,
5633 .set_format = ast_channel_set_readformat,
5634 .get_rawformat = ast_channel_rawreadformat,
5635 .set_rawformat = ast_channel_set_rawreadformat,
5636 .setoption = AST_OPTION_FORMAT_READ,
5637};
#define AST_OPTION_FORMAT_READ

Referenced by set_format().

◆ set_format_access_write

const struct set_format_access set_format_access_write
static

Definition at line 5639 of file channel.c.

5639 {
5640 .direction = "write",
5641 .get_trans = ast_channel_writetrans,
5642 .set_trans = ast_channel_writetrans_set,
5643 .get_format = ast_channel_writeformat,
5644 .set_format = ast_channel_set_writeformat,
5645 .get_rawformat = ast_channel_rawwriteformat,
5646 .set_rawformat = ast_channel_set_rawwriteformat,
5647 .setoption = AST_OPTION_FORMAT_WRITE,
5648};
#define AST_OPTION_FORMAT_WRITE

Referenced by set_format().

◆ silence_generator

struct ast_generator silence_generator
static
Initial value:
= {
}
static int silence_generator_generate(struct ast_channel *chan, void *data, int len, int samples)
Definition channel.c:8241
static void silence_generator_release(struct ast_channel *chan, void *data)
Definition channel.c:8236
static void * silence_generator_alloc(struct ast_channel *chan, void *data)
Definition channel.c:8230

Definition at line 8260 of file channel.c.

8260 {
8261 .alloc = silence_generator_alloc,
8262 .release = silence_generator_release,
8263 .generate = silence_generator_generate,
8264};

Referenced by ast_channel_start_silence_generator(), and deactivate_silence_generator().

◆ suppress_datastore_voice

const struct ast_datastore_info suppress_datastore_voice
static
Initial value:
= {
.type = "suppressvoice",
}
static void suppress_datastore_destroy_cb(void *data)
Definition channel.c:10814

Definition at line 10819 of file channel.c.

10819 {
10820 .type = "suppressvoice",
10822};

Referenced by suppress_get_datastore_information().

◆ surrogate_tech

const struct ast_channel_tech surrogate_tech
static
Initial value:
= {
.type = "Surrogate",
.description = "Surrogate channel used to pull channel from an application",
.properties = AST_CHAN_TP_INTERNAL,
}
@ AST_CHAN_TP_INTERNAL
Channels with this particular technology are an implementation detail of Asterisk and should generall...
Definition channel.h:991

Channel technology used to extract a channel from a running application. The channel created with this technology will be immediately hung up - most external applications won't ever want to see this.

Definition at line 697 of file channel.c.

697 {
698 .type = "Surrogate",
699 .description = "Surrogate channel used to pull channel from an application",
700 .properties = AST_CHAN_TP_INTERNAL,
701};

Referenced by ast_channels_init(), and channels_shutdown().

◆ tonepair

struct ast_generator tonepair
static
Initial value:
= {
.alloc = tonepair_alloc,
.release = tonepair_release,
.generate = tonepair_generator,
}
static int tonepair_generator(struct ast_channel *chan, void *data, int len, int samples)
Definition channel.c:7603
static void * tonepair_alloc(struct ast_channel *chan, void *params)
Definition channel.c:7572

Definition at line 7650 of file channel.c.

7650 {
7651 .alloc = tonepair_alloc,
7652 .release = tonepair_release,
7653 .generate = tonepair_generator,
7654};

Referenced by ast_tonepair_start().