features_config.h File Reference

#include "asterisk/stringfields.h"

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Data Structures
struct	ast_applicationmap_item
	An applicationmap configuration item. More...
struct	ast_featuremap_config
	Configuration for the builtin features. More...
struct	ast_features_general_config
	General features configuration items. More...
struct	ast_features_pickup_config
	Configuration relating to call pickup. More...
struct	ast_features_xfer_config
	Feature configuration relating to transfers. More...

Macros
#define	AST_FEATURE_MAX_LEN   11

Functions
int	ast_get_builtin_feature (struct ast_channel *chan, const char *feature, char *buf, size_t len)
	Get the DTMF code for a builtin feature.
struct ao2_container *	ast_get_chan_applicationmap (struct ast_channel *chan)
	Get the applicationmap for a given channel.
struct ast_featuremap_config *	ast_get_chan_featuremap_config (struct ast_channel *chan)
	Get the featuremap configuration options for a channel.
char *	ast_get_chan_features_atxferabort (struct ast_channel *chan)
	Get the transfer configuration option atxferabort.
struct ast_features_general_config *	ast_get_chan_features_general_config (struct ast_channel *chan)
	Get the general configuration options for a channel.
struct ast_features_pickup_config *	ast_get_chan_features_pickup_config (struct ast_channel *chan)
	Get the pickup configuration options for a channel.
struct ast_features_xfer_config *	ast_get_chan_features_xfer_config (struct ast_channel *chan)
	Get the transfer configuration options for a channel.
char *	ast_get_chan_features_xferfailsound (struct ast_channel *chan)
	Get the transfer configuration option xferfailsound.
int	ast_get_feature (struct ast_channel *chan, const char *feature, char *buf, size_t len)
	Get the DTMF code for a call feature.

Macro Definition Documentation

AST_FEATURE_MAX_LEN

#define AST_FEATURE_MAX_LEN   11

Definition at line 231 of file include/asterisk/features_config.h.

Function Documentation

ast_get_builtin_feature()

int ast_get_builtin_feature	(	struct ast_channel *	chan,
		const char *	feature,
		char *	buf,
		size_t	len
	)

Get the DTMF code for a builtin feature.

Note

The channel should be locked before calling this function

If no channel is provided, then the global setting for the option is returned.

Parameters

	chan	The channel to get the option from
	feature	The short name of the feature (as it appears in features.conf)
[out]	buf	The buffer to write the DTMF value into
	len	The size of the buffer in bytes

Return values

0	Success
non-zero	Unrecognized builtin feature name

Definition at line 1309 of file features_config.c.

{
    RAII_VAR(struct features_config *, cfg, NULL, ao2_cleanup);
 
    if (chan) {
        cfg = get_feature_ds(chan);
    } else {
        cfg = ao2_global_obj_ref(globals);
    }
 
    if (!cfg) {
        return -1;
    }
 
    return featuremap_get(cfg->featuremap, feature, buf, len);
}

References ao2_cleanup, ao2_global_obj_ref, buf, featuremap_get(), get_feature_ds(), globals, len(), NULL, and RAII_VAR.

Referenced by action_atxfer(), ast_get_feature(), attended_transfer_exec(), builtin_feature_get_exten(), detect_disconnect(), and internal_featuremap_read().

ast_get_chan_applicationmap()

struct ao2_container * ast_get_chan_applicationmap

(

struct ast_channel *

chan

)

Get the applicationmap for a given channel.

Note

The channel should be locked before calling this function.

This uses the value of the DYNAMIC_FEATURES channel variable to build a custom applicationmap for this channel. The returned container has applicationmap_items inside.

Parameters

chan	The channel for which applicationmap is being retrieved.

Return values

NULL	An error occurred or the channel has no dynamic features.
non-NULL	A container of applicationmap_items pertaining to the channel.

Definition at line 1401 of file features_config.c.

{
    RAII_VAR(struct features_config *, cfg, ao2_global_obj_ref(globals), ao2_cleanup);
    struct ao2_container *applicationmap;
    char *group_names;
    char *name;
 
    if (!cfg) {
        return NULL;
    }
 
    if (!chan) {
        if (!cfg->applicationmap || ao2_container_count(cfg->applicationmap) == 0) {
            return NULL;
        }
        ao2_ref(cfg->applicationmap, +1);
        return cfg->applicationmap;
    }
 
    group_names = ast_strdupa(S_OR(pbx_builtin_getvar_helper(chan, "DYNAMIC_FEATURES"), ""));
    if (ast_strlen_zero(group_names)) {
        return NULL;
    }
 
    applicationmap = applicationmap_alloc(0);
    if (!applicationmap) {
        return NULL;
    }
 
    /* global config must be initialized */
    ast_assert(cfg->featuregroups != NULL);
    ast_assert(cfg->applicationmap != NULL);
    while ((name = strsep(&group_names, "#"))) {
        RAII_VAR(struct featuregroup *, group, ao2_find(cfg->featuregroups, name, OBJ_KEY), ao2_cleanup);
 
        if (!group) {
            RAII_VAR(struct ast_applicationmap_item *, item, ao2_find(cfg->applicationmap, name, OBJ_KEY), ao2_cleanup);
 
            if (item) {
                ao2_link(applicationmap, item);
            } else {
                ast_log(LOG_WARNING, "Unknown DYNAMIC_FEATURES item '%s' on channel %s.\n",
                    name, ast_channel_name(chan));
            }
        } else {
            ao2_callback(group->items, 0, add_item, applicationmap);
        }
    }
 
    if (ao2_container_count(applicationmap) == 0) {
        ao2_cleanup(applicationmap);
        return NULL;
    }
 
    return applicationmap;
}

References add_item(), ao2_callback, ao2_cleanup, ao2_container_count(), ao2_find, ao2_global_obj_ref, ao2_link, ao2_ref, applicationmap_alloc(), ast_assert, ast_channel_name(), ast_log, ast_strdupa, ast_strlen_zero(), globals, item, LOG_WARNING, name, NULL, OBJ_KEY, pbx_builtin_getvar_helper(), RAII_VAR, S_OR, and strsep().

Referenced by ast_get_feature(), set_config_flags(), and setup_bridge_features_dynamic().

ast_get_chan_featuremap_config()

struct ast_featuremap_config * ast_get_chan_featuremap_config

(

struct ast_channel *

chan

)

Get the featuremap configuration options for a channel.

Note

The channel should be locked before calling this function.

The returned value has its reference count incremented.

If no channel is provided, then the global featuremap configuration is returned.

Parameters

chan	The channel to get configuration options for

Return values

NULL	Failed to get configuration
non-NULL	The pickup features configuration

Definition at line 1289 of file features_config.c.

{
    RAII_VAR(struct features_config *, cfg, NULL, ao2_cleanup);
 
    if (chan) {
        cfg = get_feature_ds(chan);
    } else {
        cfg = ao2_global_obj_ref(globals);
    }
 
    if (!cfg) {
        return NULL;
    }
 
    ast_assert(cfg->featuremap != NULL);
 
    ao2_ref(cfg->featuremap, +1);
    return cfg->featuremap;
}

References ao2_cleanup, ao2_global_obj_ref, ao2_ref, ast_assert, get_feature_ds(), globals, NULL, and RAII_VAR.

Referenced by testsuite_notify_feature_success().

ast_get_chan_features_atxferabort()

char * ast_get_chan_features_atxferabort

(

struct ast_channel *

chan

)

Get the transfer configuration option atxferabort.

Note

The channel should be locked before calling this function.

The returned value has to be freed.

If no channel is provided, then option is pulled from the global transfer configuration.

Parameters

chan	The channel to get configuration options for

Return values

NULL	Failed to get configuration
non-NULL	The atxferabort

Definition at line 1254 of file features_config.c.

{
    char *res;
    struct ast_features_xfer_config *cfg = ast_get_chan_features_xfer_config(chan);
 
    if (!cfg) {
        return NULL;
    }
 
    res = ast_strdup(cfg->atxferabort);
    ao2_ref(cfg, -1);
 
    return res;
}

References ao2_ref, ast_get_chan_features_xfer_config(), ast_strdup, ast_features_xfer_config::atxferabort, and NULL.

Referenced by action_cancel_atxfer().

ast_get_chan_features_general_config()

struct ast_features_general_config * ast_get_chan_features_general_config

(

struct ast_channel *

chan

)

Get the general configuration options for a channel.

Note

The channel should be locked before calling this function.

The returned value has its reference count incremented.

If no channel is provided, then the global features configuration is returned.

Parameters

chan	The channel to get configuration options for

Return values

NULL	Failed to get configuration
non-NULL	The general features configuration

Definition at line 1199 of file features_config.c.

{
    RAII_VAR(struct features_config *, cfg, NULL, ao2_cleanup);
 
    if (chan) {
        cfg = get_feature_ds(chan);
    } else {
        cfg = ao2_global_obj_ref(globals);
    }
 
    if (!cfg) {
        return NULL;
    }
 
    ast_assert(cfg->global && cfg->global->general);
 
    ao2_ref(cfg->global->general, +1);
    return cfg->global->general;
}

References ao2_cleanup, ao2_global_obj_ref, ao2_ref, ast_assert, get_feature_ds(), globals, NULL, and RAII_VAR.

Referenced by bridge_channel_feature_digit_timeout(), and feature_automixmonitor().

ast_get_chan_features_pickup_config()

struct ast_features_pickup_config * ast_get_chan_features_pickup_config

(

struct ast_channel *

chan

)

Get the pickup configuration options for a channel.

Note

The channel should be locked before calling this function.

The returned value has its reference count incremented.

If no channel is provided, then the global pickup configuration is returned.

Parameters

chan	The channel to get configuration options for

Return values

NULL	Failed to get configuration
non-NULL	The pickup features configuration

Definition at line 1269 of file features_config.c.

{
    RAII_VAR(struct features_config *, cfg, NULL, ao2_cleanup);
 
    if (chan) {
        cfg = get_feature_ds(chan);
    } else {
        cfg = ao2_global_obj_ref(globals);
    }
 
    if (!cfg) {
        return NULL;
    }
 
    ast_assert(cfg->global && cfg->global->pickup);
 
    ao2_ref(cfg->global->pickup, +1);
    return cfg->global->pickup;
}

References ao2_cleanup, ao2_global_obj_ref, ao2_ref, ast_assert, get_feature_ds(), globals, NULL, and RAII_VAR.

Referenced by __analog_ss_thread(), analog_ss_thread(), ast_pickup_call(), call_pickup_incoming_request(), get_destination(), handle_call_outgoing(), and key_main_page().

ast_get_chan_features_xfer_config()

struct ast_features_xfer_config * ast_get_chan_features_xfer_config

(

struct ast_channel *

chan

)

Get the transfer configuration options for a channel.

Note

The channel should be locked before calling this function.

The returned value has its reference count incremented.

If no channel is provided, then the global transfer configuration is returned.

Parameters

chan	The channel to get configuration options for

Return values

NULL	Failed to get configuration
non-NULL	The transfer features configuration

Definition at line 1219 of file features_config.c.

{
    RAII_VAR(struct features_config *, cfg, NULL, ao2_cleanup);
 
    if (chan) {
        cfg = get_feature_ds(chan);
    } else {
        cfg = ao2_global_obj_ref(globals);
    }
 
    if (!cfg) {
        return NULL;
    }
 
    ast_assert(cfg->global && cfg->global->xfer);
 
    ao2_ref(cfg->global->xfer, +1);
    return cfg->global->xfer;
}

References ao2_cleanup, ao2_global_obj_ref, ao2_ref, ast_assert, get_feature_ds(), globals, NULL, and RAII_VAR.

Referenced by action_bridge(), add_transferer_role(), ast_get_chan_features_atxferabort(), ast_get_chan_features_xferfailsound(), attended_transfer_properties_alloc(), bridge_exec(), grab_transfer(), and testsuite_notify_feature_success().

ast_get_chan_features_xferfailsound()

char * ast_get_chan_features_xferfailsound

(

struct ast_channel *

chan

)

Get the transfer configuration option xferfailsound.

Note

The channel should be locked before calling this function.

The returned value has to be freed.

If no channel is provided, then option is pulled from the global transfer configuration.

Parameters

chan	The channel to get configuration options for

Return values

NULL	Failed to get configuration
non-NULL	The xferfailsound

Definition at line 1239 of file features_config.c.

{
    char *res;
    struct ast_features_xfer_config *cfg = ast_get_chan_features_xfer_config(chan);
 
    if (!cfg) {
        return NULL;
    }
 
    res = ast_strdup(cfg->xferfailsound);
    ao2_ref(cfg, -1);
 
    return res;
}

References ao2_ref, ast_get_chan_features_xfer_config(), ast_strdup, NULL, and ast_features_xfer_config::xferfailsound.

Referenced by play_failsound(), and stream_failsound().

ast_get_feature()

int ast_get_feature	(	struct ast_channel *	chan,
		const char *	feature,
		char *	buf,
		size_t	len
	)

Get the DTMF code for a call feature.

Note

The channel should be locked before calling this function

If no channel is provided, then the global setting for the option is returned.

This function is like ast_get_builtin_feature except that it will also check the applicationmap in addition to the builtin features.

Parameters

	chan	The channel to get the option from
	feature	The short name of the feature
[out]	buf	The buffer to write the DTMF value into
	len	The size of the buffer in bytes

Return values

0	Success
non-zero	Unrecognized feature name

Definition at line 1326 of file features_config.c.

{
    RAII_VAR(struct ao2_container *, applicationmap, NULL, ao2_cleanup);
    RAII_VAR(struct ast_applicationmap_item *, item, NULL, ao2_cleanup);
 
    if (!ast_get_builtin_feature(chan, feature, buf, len)) {
        return 0;
    }
 
    /* Dang, must be in the application map */
    applicationmap = ast_get_chan_applicationmap(chan);
    if (!applicationmap) {
        return -1;
    }
 
    item = ao2_find(applicationmap, feature, OBJ_KEY);
    if (!item) {
        return -1;
    }
 
    ast_copy_string(buf, item->dtmf, len);
    return 0;
}

References ao2_cleanup, ao2_find, ast_copy_string(), ast_get_builtin_feature(), ast_get_chan_applicationmap(), buf, item, len(), NULL, OBJ_KEY, and RAII_VAR.

Referenced by handle_incoming_request().