#include "asterisk.h"
#include <regex.h>
#include <pjsip.h>
#include <pjsip_simple.h>
#include <pjlib.h>
#include "asterisk/res_pjsip.h"
#include "asterisk/res_pjsip_outbound_publish.h"
#include "asterisk/res_pjsip_pubsub.h"
#include "asterisk/res_pjsip_body_generator_types.h"
#include "asterisk/module.h"
#include "asterisk/logger.h"
#include "asterisk/astobj2.h"
#include "asterisk/sorcery.h"
#include "asterisk/app.h"
#include "asterisk/taskprocessor.h"

Include dependency graph for res_pjsip_exten_state.c:

Data Structures
struct	exten_state_pub_data

struct	exten_state_publisher
	An extension state publisher. More...

struct	exten_state_subscription
	A subscription for extension state. More...

struct	exten_state_pub_data::name

struct	notify_task_data

Macros
#define	BODY_SIZE 1024

#define	DEFAULT_DIALOG_BODY "application/dialog-info+xml"

#define	DEFAULT_PRESENCE_BODY "application/pidf+xml"

#define	EVENT_TYPE_SIZE 50

#define	INITIAL_LAST_EXTEN_STATE -3

#define	PUBLISHER_BUCKETS 31
	The number of buckets to use for storing publishers.

Functions
static void	__reg_module (void)

static void	__unreg_module (void)

static int	add_datastore (struct exten_state_subscription *exten_state_sub)

static struct notify_task_data *	alloc_notify_task_data (const char exten, struct exten_state_subscription exten_state_sub, struct ast_state_cb_info *info)

struct ast_module *	AST_MODULE_SELF_SYM (void)

static int	build_regex (regex_t regex, const char text)

static struct ast_sip_exten_state_data *	exten_state_data_alloc (struct ast_sip_subscription sip_sub, struct exten_state_subscription exten_state_sub)

static void	exten_state_data_destructor (void *obj)

static struct exten_state_pub_data *	exten_state_pub_data_alloc (const char exten, struct ast_state_cb_info info)

static void	exten_state_pub_data_destroy (struct exten_state_pub_data *doomed)

static int	exten_state_publisher_cb (void *data)

static int	exten_state_publisher_cmp (void obj, void arg, int flags)
	Comparator function for extension state publisher.

static void	exten_state_publisher_destroy (void *obj)
	Destructor for extension state publisher.

static int	exten_state_publisher_hash (const void *obj, const int flags)
	Hashing function for extension state publisher.

static int	exten_state_publisher_state_cb (const char context, const char exten, struct ast_state_cb_info info, void data)
	Global extension state callback function.

static struct exten_state_subscription *	exten_state_subscription_alloc (struct ast_sip_subscription sip_sub, struct ast_sip_endpoint endpoint)

static void	exten_state_subscription_destructor (void *obj)

static struct exten_state_subscription *	get_exten_state_sub (struct ast_sip_subscription *sub)

static void *	get_notify_data (struct ast_sip_subscription *sub)

static int	get_resource_display_name (struct ast_sip_endpoint endpoint, const char resource, char *display_name, int display_name_size)

static char *	get_user_agent (const struct ast_sip_subscription *sip_sub)

static int	load_module (void)

static int	new_subscribe (struct ast_sip_endpoint endpoint, const char resource)

static int	notify_task (void *obj)

static void	notify_task_data_destructor (void *obj)

static int	publisher_start (struct ast_sip_outbound_publish configuration, struct ast_sip_outbound_publish_client client)

static int	publisher_stop (struct ast_sip_outbound_publish_client *client)

static int	state_changed (const char context, const char exten, struct ast_state_cb_info info, void data)

static void	state_changed_destroy (int id, void *data)

static int	subscription_established (struct ast_sip_subscription *sub)

static void	subscription_shutdown (struct ast_sip_subscription *sub)

static void	to_ami (struct ast_sip_subscription sub, struct ast_str *buf)

static int	unload_module (void)

Variables
static struct ast_module_info	__mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "PJSIP Extension State Notifications" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_CHANNEL_DEPEND + 5, .requires = "res_pjsip,res_pjsip_pubsub,res_pjsip_outbound_publish", }

static const struct ast_module_info *	ast_module_info = &__mod_info

struct ast_sip_subscription_handler	dialog_handler

struct ast_sip_notifier	dialog_notifier

struct ast_sip_event_publisher_handler	dialog_publisher

static struct ast_datastore_info	ds_info = { }

static const char	ds_name [] = "exten state datastore"

struct ast_sip_subscription_handler	presence_handler

struct ast_sip_notifier	presence_notifier

struct ast_sip_event_publisher_handler	presence_publisher

static struct ast_taskprocessor *	publish_exten_state_serializer

static struct ao2_container *	publishers
	Container of active outbound extension state publishers.

Macro Definition Documentation

◆ BODY_SIZE

#define BODY_SIZE 1024

Definition at line 46 of file res_pjsip_exten_state.c.

◆ DEFAULT_DIALOG_BODY

#define DEFAULT_DIALOG_BODY "application/dialog-info+xml"

Definition at line 114 of file res_pjsip_exten_state.c.

◆ DEFAULT_PRESENCE_BODY

#define DEFAULT_PRESENCE_BODY "application/pidf+xml"

Definition at line 113 of file res_pjsip_exten_state.c.

◆ EVENT_TYPE_SIZE

#define EVENT_TYPE_SIZE 50

Definition at line 47 of file res_pjsip_exten_state.c.

◆ INITIAL_LAST_EXTEN_STATE

#define INITIAL_LAST_EXTEN_STATE -3

Definition at line 204 of file res_pjsip_exten_state.c.

◆ PUBLISHER_BUCKETS

#define PUBLISHER_BUCKETS 31

The number of buckets to use for storing publishers.

Definition at line 52 of file res_pjsip_exten_state.c.

Function Documentation

◆ __reg_module()

static void __reg_module ( void )

static

Definition at line 1059 of file res_pjsip_exten_state.c.

◆ __unreg_module()

static void __unreg_module ( void )

static

Definition at line 1059 of file res_pjsip_exten_state.c.

◆ add_datastore()

static int add_datastore ( struct exten_state_subscription * exten_state_sub )

static

Definition at line 380 of file res_pjsip_exten_state.c.

{
    RAII_VAR(struct ast_datastore *, datastore,
         ast_sip_subscription_alloc_datastore(&ds_info, ds_name), ao2_cleanup);
 
    if (!datastore) {
        return -1;
    }
 
    datastore->data = exten_state_sub;
    ast_sip_subscription_add_datastore(exten_state_sub->sip_sub, datastore);
    ao2_ref(exten_state_sub, +1);
    return 0;
}

References ao2_cleanup, ao2_ref, ast_sip_subscription_add_datastore(), ast_sip_subscription_alloc_datastore(), ds_info, ds_name, RAII_VAR, and exten_state_subscription::sip_sub.

Referenced by subscription_established().

◆ alloc_notify_task_data()

static struct notify_task_data * alloc_notify_task_data	(	const char *	exten,
		struct exten_state_subscription *	exten_state_sub,
		struct ast_state_cb_info *	info
	)

static

Definition at line 254 of file res_pjsip_exten_state.c.

{
    struct notify_task_data *task_data =
        ao2_alloc(sizeof(*task_data), notify_task_data_destructor);
 
    if (!task_data) {
        ast_log(LOG_WARNING, "Unable to create notify task data\n");
        return NULL;
    }
 
    task_data->exten_state_sub = exten_state_sub;
    task_data->exten_state_sub->last_exten_state = info->exten_state;
    task_data->exten_state_sub->last_presence_state = info->presence_state;
    ao2_ref(task_data->exten_state_sub, +1);
 
    task_data->exten_state_data.exten = exten_state_sub->exten;
    task_data->exten_state_data.exten_state = info->exten_state;
    task_data->exten_state_data.presence_state = info->presence_state;
    task_data->exten_state_data.presence_subtype = ast_strdup(info->presence_subtype);
    task_data->exten_state_data.presence_message = ast_strdup(info->presence_message);
    task_data->exten_state_data.user_agent = ast_strdup(exten_state_sub->user_agent);
    task_data->exten_state_data.device_state_info = ao2_bump(info->device_state_info);
    task_data->exten_state_data.sub = exten_state_sub->sip_sub;
    task_data->exten_state_data.datastores = ast_sip_subscription_get_datastores(exten_state_sub->sip_sub);
 
    if ((info->exten_state == AST_EXTENSION_DEACTIVATED) ||
        (info->exten_state == AST_EXTENSION_REMOVED)) {
        ast_verb(2, "Watcher for hint %s %s\n", exten, info->exten_state
             == AST_EXTENSION_REMOVED ? "removed" : "deactivated");
        task_data->terminate = 1;
    }
 
    return task_data;
}

References ao2_alloc, ao2_bump, ao2_ref, AST_EXTENSION_DEACTIVATED, AST_EXTENSION_REMOVED, ast_log, ast_sip_subscription_get_datastores(), ast_strdup, ast_verb, exten_state_subscription::exten, notify_task_data::exten_state_sub, LOG_WARNING, notify_task_data_destructor(), NULL, exten_state_subscription::sip_sub, and exten_state_subscription::user_agent.

Referenced by state_changed().

◆ AST_MODULE_SELF_SYM()

struct ast_module * AST_MODULE_SELF_SYM ( void )

Definition at line 1059 of file res_pjsip_exten_state.c.

◆ build_regex()

static int build_regex	(	regex_t *	regex,
		const char *	text
	)

static

Definition at line 854 of file res_pjsip_exten_state.c.

{
    int res;
 
    if ((res = regcomp(regex, text, REG_EXTENDED | REG_ICASE | REG_NOSUB))) {
        size_t len = regerror(res, regex, NULL, 0);
        char buf[len];
        regerror(res, regex, buf, len);
        ast_log(LOG_ERROR, "Could not compile regex '%s': %s\n", text, buf);
        return -1;
    }
 
    return 0;
}

References ast_log, buf, len(), LOG_ERROR, NULL, regex(), and text.

Referenced by publisher_start().

◆ exten_state_data_alloc()

static struct ast_sip_exten_state_data * exten_state_data_alloc	(	struct ast_sip_subscription *	sip_sub,
		struct exten_state_subscription *	exten_state_sub
	)

static

Definition at line 514 of file res_pjsip_exten_state.c.

{
    struct ast_sip_exten_state_data *exten_state_data;
    char *subtype = NULL;
    char *message = NULL;
    int presence_state;
 
    exten_state_data = ao2_alloc(sizeof(*exten_state_data), exten_state_data_destructor);
    if (!exten_state_data) {
        return NULL;
    }
 
    exten_state_data->exten = exten_state_sub->exten;
    presence_state = ast_hint_presence_state(NULL, exten_state_sub->context, exten_state_sub->exten, &subtype, &message);
    if (presence_state  == -1 || presence_state == AST_PRESENCE_INVALID) {
        ao2_cleanup(exten_state_data);
        return NULL;
    }
    exten_state_data->presence_state = presence_state;
    exten_state_data->presence_subtype = subtype;
    exten_state_data->presence_message = message;
    exten_state_data->user_agent = exten_state_sub->user_agent;
    ast_sip_subscription_get_local_uri(sip_sub, exten_state_data->local,
            sizeof(exten_state_data->local));
    ast_sip_subscription_get_remote_uri(sip_sub, exten_state_data->remote,
            sizeof(exten_state_data->remote));
    exten_state_data->sub = sip_sub;
    exten_state_data->datastores = ast_sip_subscription_get_datastores(sip_sub);
 
    exten_state_data->exten_state = ast_extension_state_extended(
            NULL, exten_state_sub->context, exten_state_sub->exten,
            &exten_state_data->device_state_info);
    if (exten_state_data->exten_state < 0) {
        ao2_cleanup(exten_state_data);
        return NULL;
    }
 
    exten_state_data->pool = pjsip_endpt_create_pool(ast_sip_get_pjsip_endpoint(),
            "exten_state", 1024, 1024);
    if (!exten_state_data->pool) {
        ao2_cleanup(exten_state_data);
        return NULL;
    }
 
    return exten_state_data;
}

Referenced by get_notify_data().

◆ exten_state_data_destructor()

static void exten_state_data_destructor ( void * obj )

static

Definition at line 502 of file res_pjsip_exten_state.c.

{
    struct ast_sip_exten_state_data *exten_state_data = obj;
 
    ao2_cleanup(exten_state_data->device_state_info);
    ast_free(exten_state_data->presence_subtype);
    ast_free(exten_state_data->presence_message);
    if (exten_state_data->pool) {
        pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(), exten_state_data->pool);
    }
}

References ao2_cleanup, ast_free, ast_sip_get_pjsip_endpoint(), ast_sip_exten_state_data::device_state_info, ast_sip_exten_state_data::pool, ast_sip_exten_state_data::presence_message, and ast_sip_exten_state_data::presence_subtype.

Referenced by exten_state_data_alloc().

◆ exten_state_pub_data_alloc()

static struct exten_state_pub_data * exten_state_pub_data_alloc	(	const char *	exten,
		struct ast_state_cb_info *	info
	)

static

Definition at line 614 of file res_pjsip_exten_state.c.

{
    struct exten_state_pub_data *pub_data;
 
    pub_data = ast_calloc(1, sizeof(*pub_data));
    if (!pub_data) {
        return NULL;
    }
 
    if (AST_VECTOR_INIT(&pub_data->pubs, ao2_container_count(publishers))) {
        exten_state_pub_data_destroy(pub_data);
        return NULL;
    }
 
    /* Save off currently known information for the body generators. */
    pub_data->exten_state_data.exten = ast_strdup(exten);
    pub_data->exten_state_data.exten_state = info->exten_state;
    pub_data->exten_state_data.presence_state = info->presence_state;
    pub_data->exten_state_data.presence_subtype = ast_strdup(info->presence_subtype);
    pub_data->exten_state_data.presence_message = ast_strdup(info->presence_message);
    pub_data->exten_state_data.device_state_info = ao2_bump(info->device_state_info);
    if (!pub_data->exten_state_data.exten
        || !pub_data->exten_state_data.presence_subtype
        || !pub_data->exten_state_data.presence_message) {
        exten_state_pub_data_destroy(pub_data);
        return NULL;
    }
    return pub_data;
}

References ao2_bump, ao2_container_count(), ast_calloc, ast_strdup, AST_VECTOR_INIT, ast_sip_exten_state_data::device_state_info, ast_sip_exten_state_data::exten, ast_sip_exten_state_data::exten_state, exten_state_pub_data::exten_state_data, exten_state_pub_data_destroy(), NULL, ast_sip_exten_state_data::presence_message, ast_sip_exten_state_data::presence_state, ast_sip_exten_state_data::presence_subtype, and exten_state_pub_data::pubs.

Referenced by exten_state_publisher_state_cb().

◆ exten_state_pub_data_destroy()

static void exten_state_pub_data_destroy ( struct exten_state_pub_data * doomed )

static

Definition at line 597 of file res_pjsip_exten_state.c.

{
    if (!doomed) {
        return;
    }
 
    ast_free((void *) doomed->exten_state_data.exten);
    ast_free(doomed->exten_state_data.presence_subtype);
    ast_free(doomed->exten_state_data.presence_message);
    ao2_cleanup(doomed->exten_state_data.device_state_info);
 
    AST_VECTOR_CALLBACK_VOID(&doomed->pubs, ao2_ref, -1);
    AST_VECTOR_FREE(&doomed->pubs);
 
    ast_free(doomed);
}

References ao2_cleanup, ao2_ref, ast_free, AST_VECTOR_CALLBACK_VOID, AST_VECTOR_FREE, ast_sip_exten_state_data::device_state_info, ast_sip_exten_state_data::exten, exten_state_pub_data::exten_state_data, ast_sip_exten_state_data::presence_message, ast_sip_exten_state_data::presence_subtype, and exten_state_pub_data::pubs.

Referenced by exten_state_pub_data_alloc(), exten_state_publisher_cb(), and exten_state_publisher_state_cb().

◆ exten_state_publisher_cb()

static int exten_state_publisher_cb ( void * data )

static

Definition at line 651 of file res_pjsip_exten_state.c.

{
    struct exten_state_pub_data *pub_data = data;
    struct exten_state_publisher *publisher;
    size_t idx;
    struct ast_str *body_text;
    pj_pool_t *pool;
    struct ast_sip_body_data gen_data = {
        .body_type = AST_SIP_EXTEN_STATE_DATA,
        .body_data = &pub_data->exten_state_data,
    };
    struct ast_sip_body body;
 
    body_text = ast_str_create(64);
    if (!body_text) {
        exten_state_pub_data_destroy(pub_data);
        return 0;
    }
 
    /* Need a PJSIP memory pool to generate the bodies. */
    pool = pjsip_endpt_create_pool(ast_sip_get_pjsip_endpoint(), "pub_state_body",
        1024, 1024);
    if (!pool) {
        ast_log(LOG_WARNING, "Exten state publishing unable to create memory pool\n");
        exten_state_pub_data_destroy(pub_data);
        ast_free(body_text);
        return 0;
    }
    pub_data->exten_state_data.pool = pool;
 
    for (idx = 0; idx < AST_VECTOR_SIZE(&pub_data->pubs); ++idx) {
        const char *uri;
        int res;
 
        publisher = AST_VECTOR_GET(&pub_data->pubs, idx);
 
        uri = ast_sip_publish_client_get_user_from_uri(publisher->client, pub_data->exten_state_data.exten,
            pub_data->exten_state_data.local, sizeof(pub_data->exten_state_data.local));
        if (ast_strlen_zero(uri)) {
            ast_log(LOG_WARNING, "PUBLISH client '%s' has no from_uri or server_uri defined.\n",
                publisher->name);
            continue;
        }
 
        uri = ast_sip_publish_client_get_user_to_uri(publisher->client, pub_data->exten_state_data.exten,
            pub_data->exten_state_data.remote, sizeof(pub_data->exten_state_data.remote));
        if (ast_strlen_zero(uri)) {
            ast_log(LOG_WARNING, "PUBLISH client '%s' has no to_uri or server_uri defined.\n",
                publisher->name);
            continue;
        }
 
        pub_data->exten_state_data.datastores = publisher->datastores;
 
        res = ast_sip_pubsub_generate_body_content(publisher->body_type,
            publisher->body_subtype, &gen_data, &body_text);
        pj_pool_reset(pool);
        if (res) {
            ast_log(LOG_WARNING,
                "PUBLISH client '%s' unable to generate %s/%s PUBLISH body.\n",
                publisher->name, publisher->body_type, publisher->body_subtype);
            continue;
        }
 
        body.type = publisher->body_type;
        body.subtype = publisher->body_subtype;
        body.body_text = ast_str_buffer(body_text);
        ast_sip_publish_client_user_send(publisher->client, pub_data->exten_state_data.exten, &body);
    }
 
    pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(), pool);
 
    ast_free(body_text);
    exten_state_pub_data_destroy(pub_data);
    return 0;
}

References ast_free, ast_log, AST_SIP_EXTEN_STATE_DATA, ast_sip_get_pjsip_endpoint(), ast_sip_publish_client_get_user_from_uri(), ast_sip_publish_client_get_user_to_uri(), ast_sip_publish_client_user_send(), ast_sip_pubsub_generate_body_content(), ast_str_buffer(), ast_str_create, ast_strlen_zero(), AST_VECTOR_GET, AST_VECTOR_SIZE, exten_state_publisher::body_subtype, ast_sip_body::body_text, ast_sip_body_data::body_type, exten_state_publisher::body_type, exten_state_publisher::client, ast_sip_exten_state_data::datastores, exten_state_publisher::datastores, ast_sip_exten_state_data::exten, exten_state_pub_data::exten_state_data, exten_state_pub_data_destroy(), ast_sip_exten_state_data::local, LOG_WARNING, exten_state_publisher::name, ast_sip_exten_state_data::pool, exten_state_pub_data::pubs, ast_sip_exten_state_data::remote, ast_sip_body::subtype, and ast_sip_body::type.

Referenced by exten_state_publisher_state_cb().

◆ exten_state_publisher_cmp()

static int exten_state_publisher_cmp	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Comparator function for extension state publisher.

Definition at line 807 of file res_pjsip_exten_state.c.

{
    const struct exten_state_publisher *object_left = obj;
    const struct exten_state_publisher *object_right = arg;
    const char *right_key = arg;
    int cmp;
 
    switch (flags & OBJ_SEARCH_MASK) {
    case OBJ_SEARCH_OBJECT:
        right_key = object_right->name;
        /* Fall through */
    case OBJ_SEARCH_KEY:
        cmp = strcmp(object_left->name, right_key);
        break;
    case OBJ_SEARCH_PARTIAL_KEY:
        /* Not supported by container. */
        ast_assert(0);
        return 0;
    default:
        cmp = 0;
        break;
    }
    if (cmp) {
        return 0;
    }
    return CMP_MATCH;
}

References ast_assert, CMP_MATCH, exten_state_publisher::name, OBJ_SEARCH_KEY, OBJ_SEARCH_MASK, OBJ_SEARCH_OBJECT, and OBJ_SEARCH_PARTIAL_KEY.

Referenced by load_module().

◆ exten_state_publisher_destroy()

static void exten_state_publisher_destroy ( void * obj )

static

Destructor for extension state publisher.

Definition at line 838 of file res_pjsip_exten_state.c.

{
    struct exten_state_publisher *publisher = obj;
 
    if (publisher->context_filter) {
        regfree(&publisher->context_regex);
    }
 
    if (publisher->exten_filter) {
        regfree(&publisher->exten_regex);
    }
 
    ao2_cleanup(publisher->client);
    ao2_cleanup(publisher->datastores);
}

References ao2_cleanup, exten_state_publisher::client, exten_state_publisher::context_filter, exten_state_publisher::context_regex, exten_state_publisher::datastores, exten_state_publisher::exten_filter, and exten_state_publisher::exten_regex.

Referenced by publisher_start().

◆ exten_state_publisher_hash()

static int exten_state_publisher_hash	(	const void *	obj,
		const int	flags
	)

static

Hashing function for extension state publisher.

Definition at line 784 of file res_pjsip_exten_state.c.

{
    const struct exten_state_publisher *object;
    const char *key;
 
    switch (flags & OBJ_SEARCH_MASK) {
    case OBJ_SEARCH_KEY:
        key = obj;
        break;
    case OBJ_SEARCH_OBJECT:
        object = obj;
        key = object->name;
        break;
    default:
        ast_assert(0);
        return 0;
    }
    return ast_str_hash(key);
}

References ast_assert, ast_str_hash(), exten_state_publisher::name, OBJ_SEARCH_KEY, OBJ_SEARCH_MASK, and OBJ_SEARCH_OBJECT.

Referenced by load_module().

◆ exten_state_publisher_state_cb()

static int exten_state_publisher_state_cb	(	const char *	context,
		const char *	exten,
		struct ast_state_cb_info *	info,
		void *	data
	)

static

Global extension state callback function.

Definition at line 731 of file res_pjsip_exten_state.c.

{
    struct ao2_iterator publisher_iter;
    struct exten_state_publisher *publisher;
    struct exten_state_pub_data *pub_data = NULL;
 
    ast_debug(5, "Exten state publisher: %s@%s Reason:%s State:%s Presence:%s Subtype:'%s' Message:'%s'\n",
        exten, context,
        info->reason == AST_HINT_UPDATE_DEVICE
            ? "Device"
            : info->reason == AST_HINT_UPDATE_PRESENCE
                ? "Presence"
                : "Unknown",
        ast_extension_state2str(info->exten_state),
        ast_presence_state2str(info->presence_state),
        S_OR(info->presence_subtype, ""),
        S_OR(info->presence_message, ""));
    publisher_iter = ao2_iterator_init(publishers, 0);
    for (; (publisher = ao2_iterator_next(&publisher_iter)); ao2_ref(publisher, -1)) {
        if ((publisher->context_filter && regexec(&publisher->context_regex, context, 0, NULL, 0)) ||
            (publisher->exten_filter && regexec(&publisher->exten_regex, exten, 0, NULL, 0))) {
            continue;
        }
 
        if (!pub_data) {
            pub_data = exten_state_pub_data_alloc(exten, info);
            if (!pub_data) {
                ao2_ref(publisher, -1);
                break;
            }
        }
 
        ao2_ref(publisher, +1);
        if (AST_VECTOR_APPEND(&pub_data->pubs, publisher)) {
            ao2_ref(publisher, -1);
        } else {
            ast_debug(5, "'%s' will publish exten state\n", publisher->name);
        }
    }
    ao2_iterator_destroy(&publisher_iter);
 
    if (pub_data
        && ast_sip_push_task(publish_exten_state_serializer, exten_state_publisher_cb,
            pub_data)) {
        exten_state_pub_data_destroy(pub_data);
    }
 
    return 0;
}

References ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ao2_ref, ast_debug, ast_extension_state2str(), AST_HINT_UPDATE_DEVICE, AST_HINT_UPDATE_PRESENCE, ast_presence_state2str(), ast_sip_push_task(), AST_VECTOR_APPEND, exten_state_publisher::context_filter, exten_state_publisher::context_regex, exten_state_publisher::exten_filter, exten_state_publisher::exten_regex, exten_state_pub_data_alloc(), exten_state_pub_data_destroy(), exten_state_publisher_cb(), exten_state_publisher::name, NULL, publish_exten_state_serializer, exten_state_pub_data::pubs, and S_OR.

Referenced by publisher_start(), and unload_module().

◆ exten_state_subscription_alloc()

static struct exten_state_subscription * exten_state_subscription_alloc	(	struct ast_sip_subscription *	sip_sub,
		struct ast_sip_endpoint *	endpoint
	)

static

Definition at line 213 of file res_pjsip_exten_state.c.

{
    struct exten_state_subscription * exten_state_sub;
 
    exten_state_sub = ao2_alloc(sizeof(*exten_state_sub), exten_state_subscription_destructor);
    if (!exten_state_sub) {
        return NULL;
    }
 
    exten_state_sub->sip_sub = sip_sub;
 
    /* We keep our own reference to the serializer as there is no guarantee in state_changed
     * that the subscription tree is still valid when it is called. This can occur when
     * the subscription is terminated at around the same time as the state_changed
     * callback is invoked.
     */
    exten_state_sub->serializer = ao2_bump(ast_sip_subscription_get_serializer(sip_sub));
    exten_state_sub->last_exten_state = INITIAL_LAST_EXTEN_STATE;
    exten_state_sub->last_presence_state = AST_PRESENCE_NOT_SET;
    exten_state_sub->user_agent = get_user_agent(sip_sub);
    return exten_state_sub;
}

References ao2_alloc, ao2_bump, AST_PRESENCE_NOT_SET, ast_sip_subscription_get_serializer(), exten_state_subscription_destructor(), get_user_agent(), INITIAL_LAST_EXTEN_STATE, exten_state_subscription::last_exten_state, exten_state_subscription::last_presence_state, NULL, exten_state_subscription::serializer, exten_state_subscription::sip_sub, and exten_state_subscription::user_agent.

Referenced by subscription_established().

◆ exten_state_subscription_destructor()

static void exten_state_subscription_destructor ( void * obj )

static

Definition at line 173 of file res_pjsip_exten_state.c.

{
    struct exten_state_subscription *sub = obj;
 
    ast_free(sub->user_agent);
    ast_sip_subscription_destroy(sub->sip_sub);
    ast_taskprocessor_unreference(sub->serializer);
}

References ast_free, ast_sip_subscription_destroy(), ast_taskprocessor_unreference(), and sub.

Referenced by exten_state_subscription_alloc().

◆ get_exten_state_sub()

static struct exten_state_subscription * get_exten_state_sub ( struct ast_sip_subscription * sub )

static

Definition at line 400 of file res_pjsip_exten_state.c.

{
    RAII_VAR(struct ast_datastore *, datastore,
         ast_sip_subscription_get_datastore(sub, ds_name), ao2_cleanup);
 
    return datastore ? datastore->data : NULL;
}

References ao2_cleanup, ast_sip_subscription_get_datastore(), ds_name, NULL, RAII_VAR, and sub.

Referenced by get_notify_data(), subscription_shutdown(), and to_ami().

◆ get_notify_data()

static void * get_notify_data ( struct ast_sip_subscription * sub )

static

Definition at line 562 of file res_pjsip_exten_state.c.

{
    struct exten_state_subscription *exten_state_sub;
 
    exten_state_sub = get_exten_state_sub(sub);
    if (!exten_state_sub) {
        return NULL;
    }
 
    return exten_state_data_alloc(sub, exten_state_sub);
}

References exten_state_data_alloc(), get_exten_state_sub(), NULL, and sub.

◆ get_resource_display_name()

static int get_resource_display_name	(	struct ast_sip_endpoint *	endpoint,
		const char *	resource,
		char *	display_name,
		int	display_name_size
	)

static

Definition at line 438 of file res_pjsip_exten_state.c.

{
    const char *context;
 
    if (!endpoint || ast_strlen_zero(resource) || !display_name || display_name_size <= 0) {
        return -1;
    }
 
    context = S_OR(endpoint->subscription.context, endpoint->context);
 
    if (!ast_get_hint(NULL, 0, display_name, display_name_size, NULL, context, resource)) {
        ast_log(LOG_NOTICE, "Endpoint '%s': "
            "Extension '%s' does not exist in context '%s' or has no associated hint\n",
            ast_sorcery_object_get_id(endpoint), resource, context);
        return -1;
    }
 
    return 0;
}

References ast_get_hint(), ast_log, ast_sorcery_object_get_id(), ast_strlen_zero(), ast_sip_endpoint_subscription_configuration::context, ast_sip_endpoint::context, exten_state_subscription::context, LOG_NOTICE, NULL, S_OR, and ast_sip_endpoint::subscription.

◆ get_user_agent()

static char * get_user_agent ( const struct ast_sip_subscription * sip_sub )

static

Definition at line 182 of file res_pjsip_exten_state.c.

{
    size_t size;
    char *user_agent = NULL;
    pjsip_user_agent_hdr *user_agent_hdr = ast_sip_subscription_get_header(
            sip_sub, "User-Agent");
 
    if (!user_agent_hdr) {
        return NULL;
    }
 
    size = pj_strlen(&user_agent_hdr->hvalue) + 1;
    user_agent = ast_malloc(size);
    ast_copy_pj_str(user_agent, &user_agent_hdr->hvalue, size);
    return ast_str_to_lower(user_agent);
}

References ast_copy_pj_str(), ast_malloc, ast_sip_subscription_get_header(), ast_str_to_lower(), NULL, exten_state_subscription::sip_sub, and exten_state_subscription::user_agent.

Referenced by exten_state_subscription_alloc().

◆ load_module()

static int load_module ( void )

static

Definition at line 1007 of file res_pjsip_exten_state.c.

{
    publishers = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0,
        PUBLISHER_BUCKETS, exten_state_publisher_hash, NULL, exten_state_publisher_cmp);
    if (!publishers) {
        ast_log(LOG_WARNING, "Unable to create container to store extension state publishers\n");
        return AST_MODULE_LOAD_DECLINE;
    }
 
    publish_exten_state_serializer = ast_sip_create_serializer("pjsip/exten_state");
    if (!publish_exten_state_serializer) {
        unload_module();
        return AST_MODULE_LOAD_DECLINE;
    }
 
    if (ast_sip_register_subscription_handler(&presence_handler)) {
        ast_log(LOG_WARNING, "Unable to register subscription handler %s\n",
            presence_handler.event_name);
        unload_module();
        return AST_MODULE_LOAD_DECLINE;
    }
 
    if (ast_sip_register_event_publisher_handler(&presence_publisher)) {
        ast_log(LOG_WARNING, "Unable to register presence publisher %s\n",
            presence_publisher.event_name);
        unload_module();
        return AST_MODULE_LOAD_DECLINE;
    }
 
    if (ast_sip_register_subscription_handler(&dialog_handler)) {
        ast_log(LOG_WARNING, "Unable to register subscription handler %s\n",
            dialog_handler.event_name);
        unload_module();
        return AST_MODULE_LOAD_DECLINE;
    }
 
    if (ast_sip_register_event_publisher_handler(&dialog_publisher)) {
        ast_log(LOG_WARNING, "Unable to register presence publisher %s\n",
            dialog_publisher.event_name);
        unload_module();
        return AST_MODULE_LOAD_DECLINE;
    }
 
    return AST_MODULE_LOAD_SUCCESS;
}

References AO2_ALLOC_OPT_LOCK_MUTEX, ao2_container_alloc_hash, ast_log, AST_MODULE_LOAD_DECLINE, AST_MODULE_LOAD_SUCCESS, ast_sip_create_serializer(), ast_sip_register_event_publisher_handler(), ast_sip_register_subscription_handler(), dialog_handler, dialog_publisher, ast_sip_event_publisher_handler::event_name, ast_sip_subscription_handler::event_name, exten_state_publisher_cmp(), exten_state_publisher_hash(), LOG_WARNING, NULL, presence_handler, presence_publisher, publish_exten_state_serializer, PUBLISHER_BUCKETS, and unload_module().

◆ new_subscribe()

static int new_subscribe	(	struct ast_sip_endpoint *	endpoint,
		const char *	resource
	)

static

Definition at line 423 of file res_pjsip_exten_state.c.

{
    const char *context = S_OR(endpoint->subscription.context, endpoint->context);
 
    if (!ast_exists_extension(NULL, context, resource, PRIORITY_HINT, NULL)) {
        ast_log(LOG_NOTICE, "Endpoint '%s' state subscription failed: "
            "Extension '%s' does not exist in context '%s' or has no associated hint\n",
            ast_sorcery_object_get_id(endpoint), resource, context);
        return 404;
    }
 
    return 200;
}

References ast_exists_extension(), ast_log, ast_sorcery_object_get_id(), ast_sip_endpoint_subscription_configuration::context, ast_sip_endpoint::context, exten_state_subscription::context, LOG_NOTICE, NULL, PRIORITY_HINT, S_OR, and ast_sip_endpoint::subscription.

◆ notify_task()

static int notify_task ( void * obj )

static

Definition at line 291 of file res_pjsip_exten_state.c.

{
    RAII_VAR(struct notify_task_data *, task_data, obj, ao2_cleanup);
    struct ast_sip_body_data data = {
        .body_type = AST_SIP_EXTEN_STATE_DATA,
        .body_data = &task_data->exten_state_data,
    };
 
    /* The subscription was terminated while notify_task was in queue.
       Terminated subscriptions are no longer associated with a valid tree, and sending
     * NOTIFY messages on a subscription which has already been terminated won't work.
     */
    if (ast_sip_subscription_is_terminated(task_data->exten_state_sub->sip_sub)) {
        return 0;
    }
 
    /* All access to the subscription must occur within a task executed within its serializer */
    ast_sip_subscription_get_local_uri(task_data->exten_state_sub->sip_sub,
            task_data->exten_state_data.local, sizeof(task_data->exten_state_data.local));
    ast_sip_subscription_get_remote_uri(task_data->exten_state_sub->sip_sub,
            task_data->exten_state_data.remote, sizeof(task_data->exten_state_data.remote));
 
    /* Pool allocation has to happen here so that we allocate within a PJLIB thread */
    task_data->exten_state_data.pool = pjsip_endpt_create_pool(ast_sip_get_pjsip_endpoint(),
            "exten_state", 1024, 1024);
    if (!task_data->exten_state_data.pool) {
        return -1;
    }
 
    task_data->exten_state_data.sub = task_data->exten_state_sub->sip_sub;
    task_data->exten_state_data.datastores = ast_sip_subscription_get_datastores(task_data->exten_state_sub->sip_sub);
 
    ast_sip_subscription_notify(task_data->exten_state_sub->sip_sub, &data,
            task_data->terminate);
 
    pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(),
            task_data->exten_state_data.pool);
    return 0;
}

References ao2_cleanup, AST_SIP_EXTEN_STATE_DATA, ast_sip_get_pjsip_endpoint(), ast_sip_subscription_get_datastores(), ast_sip_subscription_get_local_uri(), ast_sip_subscription_get_remote_uri(), ast_sip_subscription_is_terminated(), ast_sip_subscription_notify(), ast_sip_body_data::body_type, and RAII_VAR.

Referenced by state_changed().

◆ notify_task_data_destructor()

static void notify_task_data_destructor ( void * obj )

static

Definition at line 243 of file res_pjsip_exten_state.c.

{
    struct notify_task_data *task_data = obj;
 
    ao2_ref(task_data->exten_state_sub, -1);
    ao2_cleanup(task_data->exten_state_data.device_state_info);
    ast_free(task_data->exten_state_data.presence_subtype);
    ast_free(task_data->exten_state_data.presence_message);
    ast_free(task_data->exten_state_data.user_agent);
}

References ao2_cleanup, ao2_ref, and ast_free.

Referenced by alloc_notify_task_data().

◆ publisher_start()

static int publisher_start	(	struct ast_sip_outbound_publish *	configuration,
		struct ast_sip_outbound_publish_client *	client
	)

static

Definition at line 869 of file res_pjsip_exten_state.c.

{
    struct exten_state_publisher *publisher;
    size_t name_size;
    size_t body_type_size;
    size_t body_subtype_size;
    char *body_subtype;
    const char *body_full;
    const char *body_type;
    const char *name;
    const char *context;
    const char *exten;
 
    name = ast_sorcery_object_get_id(configuration);
 
    body_full = ast_sorcery_object_get_extended(configuration, "body");
    if (ast_strlen_zero(body_full)) {
        ast_log(LOG_ERROR, "Outbound extension state publisher '%s': Body not set\n",
            name);
        return -1;
    }
 
    body_subtype = ast_strdupa(body_full);
    body_type = strsep(&body_subtype, "/");
    if (ast_strlen_zero(body_type) || ast_strlen_zero(body_subtype)) {
        ast_log(LOG_ERROR, "Outbound extension state publisher '%s': Body '%s' missing type or subtype\n",
            name, body_full);
        return -1;
    }
 
    if (!ast_sip_pubsub_is_body_generator_registered(body_type, body_subtype)) {
        ast_log(LOG_ERROR, "Outbound extension state publisher '%s': '%s' body generator not registered\n",
            name, body_full);
        return -1;
    }
 
    name_size = strlen(name) + 1;
    body_type_size = strlen(body_type) + 1;
    body_subtype_size = strlen(body_subtype) + 1;
 
    publisher = ao2_alloc_options(
        sizeof(*publisher) + name_size + body_type_size + body_subtype_size,
        exten_state_publisher_destroy, AO2_ALLOC_OPT_LOCK_NOLOCK);
    if (!publisher) {
        return -1;
    }
 
    ast_copy_string(publisher->name, name, name_size);
    publisher->body_type = publisher->name + name_size;
    ast_copy_string(publisher->body_type, body_type, body_type_size);
    publisher->body_subtype = publisher->body_type + body_type_size;
    ast_copy_string(publisher->body_subtype, body_subtype, body_subtype_size);
 
    context = ast_sorcery_object_get_extended(configuration, "context");
    if (!ast_strlen_zero(context)) {
        if (build_regex(&publisher->context_regex, context)) {
            ast_log(LOG_ERROR, "Outbound extension state publisher '%s': Could not build context filter '%s'\n",
                name, context);
            ao2_ref(publisher, -1);
            return -1;
        }
 
        publisher->context_filter = 1;
    }
 
    exten = ast_sorcery_object_get_extended(configuration, "exten");
    if (!ast_strlen_zero(exten)) {
        if (build_regex(&publisher->exten_regex, exten)) {
            ast_log(LOG_ERROR, "Outbound extension state publisher '%s': Could not build exten filter '%s'\n",
                name, exten);
            ao2_ref(publisher, -1);
            return -1;
        }
 
        publisher->exten_filter = 1;
    }
 
    publisher->datastores = ast_datastores_alloc();
    if (!publisher->datastores) {
        ast_log(LOG_ERROR, "Outbound extension state publisher '%s': Could not create datastores container\n",
            name);
        ao2_ref(publisher, -1);
        return -1;
    }
 
    publisher->client = ao2_bump(client);
 
    ao2_lock(publishers);
    if (!ao2_container_count(publishers)) {
        ast_extension_state_add(NULL, NULL, exten_state_publisher_state_cb, NULL);
    }
    ao2_link_flags(publishers, publisher, OBJ_NOLOCK);
    ao2_unlock(publishers);
 
    ao2_ref(publisher, -1);
 
    return 0;
}

◆ publisher_stop()

static int publisher_stop ( struct ast_sip_outbound_publish_client * client )

static

Definition at line 968 of file res_pjsip_exten_state.c.

{
    ao2_find(publishers, ast_sorcery_object_get_id(client), OBJ_SEARCH_KEY | OBJ_UNLINK | OBJ_NODATA);
    return 0;
}

References ao2_find, ast_sorcery_object_get_id(), exten_state_publisher::client, OBJ_NODATA, OBJ_SEARCH_KEY, and OBJ_UNLINK.

◆ state_changed()

static int state_changed	(	const char *	context,
		const char *	exten,
		struct ast_state_cb_info *	info,
		void *	data
	)

static

Definition at line 337 of file res_pjsip_exten_state.c.

{
    struct notify_task_data *task_data;
    struct exten_state_subscription *exten_state_sub = data;
 
    /* Terminated subscriptions are no longer associated with a valid tree.
     * Do not queue notify_task.
     */
    if (ast_sip_subscription_is_terminated(exten_state_sub->sip_sub)) {
        return 0;
    }
 
    if (!(task_data = alloc_notify_task_data(exten, exten_state_sub, info))) {
        return -1;
    }
 
    /* safe to push this async since we copy the data from info and
       add a ref for the device state info */
    if (ast_sip_push_task(task_data->exten_state_sub->serializer, notify_task,
        task_data)) {
        ao2_cleanup(task_data);
        return -1;
    }
    return 0;
}

References alloc_notify_task_data(), ao2_cleanup, ast_sip_push_task(), ast_sip_subscription_is_terminated(), exten_state_subscription::exten, notify_task(), and exten_state_subscription::sip_sub.

Referenced by subscription_established(), and subscription_shutdown().

◆ state_changed_destroy()

static void state_changed_destroy	(	int	id,
		void *	data
	)

static

Definition at line 364 of file res_pjsip_exten_state.c.

{
    struct exten_state_subscription *exten_state_sub = data;
    ao2_cleanup(exten_state_sub);
}

References ao2_cleanup.

Referenced by subscription_established().

◆ subscription_established()

static int subscription_established ( struct ast_sip_subscription * sub )

static

Definition at line 459 of file res_pjsip_exten_state.c.

{
    struct ast_sip_endpoint *endpoint = ast_sip_subscription_get_endpoint(sip_sub);
    const char *resource = ast_sip_subscription_get_resource_name(sip_sub);
    struct exten_state_subscription *exten_state_sub;
 
    if (!(exten_state_sub = exten_state_subscription_alloc(sip_sub, endpoint))) {
        ao2_cleanup(endpoint);
        return -1;
    }
 
    ast_copy_string(exten_state_sub->context,
        S_OR(endpoint->subscription.context, endpoint->context),
        sizeof(exten_state_sub->context));
    ast_copy_string(exten_state_sub->exten, resource, sizeof(exten_state_sub->exten));
 
    if ((exten_state_sub->id = ast_extension_state_add_destroy_extended(
             exten_state_sub->context, exten_state_sub->exten,
             state_changed, state_changed_destroy, exten_state_sub)) < 0) {
        ast_log(LOG_WARNING, "Unable to subscribe endpoint '%s' to extension '%s@%s'\n",
            ast_sorcery_object_get_id(endpoint), exten_state_sub->exten,
            exten_state_sub->context);
        ao2_cleanup(endpoint);
        ao2_cleanup(exten_state_sub);
        return -1;
    }
 
    /* Go ahead and cleanup the endpoint since we don't need it anymore */
    ao2_cleanup(endpoint);
 
    /* bump the ref since ast_extension_state_add holds a reference */
    ao2_ref(exten_state_sub, +1);
 
    if (add_datastore(exten_state_sub)) {
        ast_log(LOG_WARNING, "Unable to add to subscription datastore.\n");
        ao2_cleanup(exten_state_sub);
        return -1;
    }
 
    ao2_cleanup(exten_state_sub);
    return 0;
}

References add_datastore(), ao2_cleanup, ao2_ref, ast_copy_string(), ast_extension_state_add_destroy_extended(), ast_log, ast_sip_subscription_get_endpoint(), ast_sip_subscription_get_resource_name(), ast_sorcery_object_get_id(), ast_sip_endpoint_subscription_configuration::context, ast_sip_endpoint::context, exten_state_subscription::context, exten_state_subscription::exten, exten_state_subscription_alloc(), exten_state_subscription::id, LOG_WARNING, S_OR, exten_state_subscription::sip_sub, state_changed(), state_changed_destroy(), and ast_sip_endpoint::subscription.

◆ subscription_shutdown()

static void subscription_shutdown ( struct ast_sip_subscription * sub )

static

Definition at line 409 of file res_pjsip_exten_state.c.

{
    struct exten_state_subscription *exten_state_sub = get_exten_state_sub(sub);
 
    if (!exten_state_sub) {
        return;
    }
 
    ast_extension_state_del(exten_state_sub->id, state_changed);
    ast_sip_subscription_remove_datastore(exten_state_sub->sip_sub, ds_name);
    /* remove data store reference */
    ao2_cleanup(exten_state_sub);
}

References ao2_cleanup, ast_extension_state_del(), ast_sip_subscription_remove_datastore(), ds_name, get_exten_state_sub(), exten_state_subscription::id, exten_state_subscription::sip_sub, state_changed(), and sub.

◆ to_ami()

static void to_ami	(	struct ast_sip_subscription *	sub,
		struct ast_str **	buf
	)

static

Definition at line 574 of file res_pjsip_exten_state.c.

{
    struct exten_state_subscription *exten_state_sub =
        get_exten_state_sub(sub);
 
    if (!exten_state_sub) {
        return;
    }
 
    ast_str_append(buf, 0, "SubscriptionType: extension_state\r\n"
               "Extension: %s\r\nExtensionStates: %s\r\n",
               exten_state_sub->exten, ast_extension_state2str(
                   exten_state_sub->last_exten_state));
}

References ast_extension_state2str(), ast_str_append(), buf, exten_state_subscription::exten, get_exten_state_sub(), exten_state_subscription::last_exten_state, and sub.

Referenced by load_module(), stasis_message_can_be_ami(), stasis_message_to_ami(), and unload_module().

◆ unload_module()

static int unload_module ( void )

static

Definition at line 974 of file res_pjsip_exten_state.c.

{
    /*
     * pjsip_evsub_register_pkg is called by ast_sip_register_subscription_handler
     * but there is no corresponding unregister function, so unloading
     * a module does not remove the event package. If this module is ever
     * loaded again, then pjproject will assert and cause a crash.
     * For that reason, we must only be allowed to unload when
     * asterisk is shutting down.  If a pjsip_evsub_unregister_pkg
     * API is added in the future then we should go back to unloading
     * the module as intended.
     */
 
    if (ast_shutdown_final()) {
        ast_sip_unregister_event_publisher_handler(&dialog_publisher);
        ast_sip_unregister_subscription_handler(&dialog_handler);
        ast_sip_unregister_event_publisher_handler(&presence_publisher);
        ast_sip_unregister_subscription_handler(&presence_handler);
 
        ast_extension_state_del(0, exten_state_publisher_state_cb);
 
        ast_taskprocessor_unreference(publish_exten_state_serializer);
        publish_exten_state_serializer = NULL;
 
        ao2_cleanup(publishers);
        publishers = NULL;
 
        return 0;
    } else {
        return -1;
    }
}

References ao2_cleanup, ast_extension_state_del(), ast_shutdown_final(), ast_sip_unregister_event_publisher_handler(), ast_sip_unregister_subscription_handler(), ast_taskprocessor_unreference(), dialog_handler, dialog_publisher, exten_state_publisher_state_cb(), NULL, presence_handler, presence_publisher, and publish_exten_state_serializer.

Referenced by load_module().

Variable Documentation

◆ __mod_info

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "PJSIP Extension State Notifications" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_CHANNEL_DEPEND + 5, .requires = "res_pjsip,res_pjsip_pubsub,res_pjsip_outbound_publish", }

static

Definition at line 1059 of file res_pjsip_exten_state.c.

◆ ast_module_info

const struct ast_module_info* ast_module_info = &__mod_info

static

Definition at line 1059 of file res_pjsip_exten_state.c.

◆ dialog_handler

struct ast_sip_subscription_handler dialog_handler

Definition at line 158 of file res_pjsip_exten_state.c.

                                                     {
    .event_name = "dialog",
    .body_type = AST_SIP_EXTEN_STATE_DATA,
    .accept = { DEFAULT_DIALOG_BODY, },
    .subscription_shutdown = subscription_shutdown,
    .to_ami = to_ami,
    .notifier = &dialog_notifier,
};

Referenced by load_module(), and unload_module().

◆ dialog_notifier

struct ast_sip_notifier dialog_notifier

Definition at line 135 of file res_pjsip_exten_state.c.

                                          {
    .default_accept = DEFAULT_DIALOG_BODY,
    .new_subscribe = new_subscribe,
    .subscription_established = subscription_established,
    .get_notify_data = get_notify_data,
    .get_resource_display_name = get_resource_display_name,
};

◆ dialog_publisher

struct ast_sip_event_publisher_handler dialog_publisher

Initial value:

= {
    .event_name = "dialog",
    .start_publishing = publisher_start,
    .stop_publishing = publisher_stop,
}

Definition at line 167 of file res_pjsip_exten_state.c.

                                                          {
    .event_name = "dialog",
    .start_publishing = publisher_start,
    .stop_publishing = publisher_stop,
};

Referenced by load_module(), and unload_module().

◆ ds_info

struct ast_datastore_info ds_info = { }

static

Definition at line 370 of file res_pjsip_exten_state.c.

370{ };

Referenced by add_datastore().

◆ ds_name

const char ds_name[] = "exten state datastore"

static

Definition at line 371 of file res_pjsip_exten_state.c.

Referenced by add_datastore(), get_exten_state_sub(), and subscription_shutdown().

◆ presence_handler

struct ast_sip_subscription_handler presence_handler

Definition at line 143 of file res_pjsip_exten_state.c.

                                                       {
    .event_name = "presence",
    .body_type = AST_SIP_EXTEN_STATE_DATA,
    .accept = { DEFAULT_PRESENCE_BODY, },
    .subscription_shutdown = subscription_shutdown,
    .to_ami = to_ami,
    .notifier = &presence_notifier,
};

Referenced by load_module(), and unload_module().

◆ presence_notifier

struct ast_sip_notifier presence_notifier

Definition at line 127 of file res_pjsip_exten_state.c.

                                            {
    .default_accept = DEFAULT_PRESENCE_BODY,
    .new_subscribe = new_subscribe,
    .subscription_established = subscription_established,
    .get_notify_data = get_notify_data,
    .get_resource_display_name = get_resource_display_name,
};

◆ presence_publisher

struct ast_sip_event_publisher_handler presence_publisher

Initial value:

= {
    .event_name = "presence",
    .start_publishing = publisher_start,
    .stop_publishing = publisher_stop,
}

Definition at line 152 of file res_pjsip_exten_state.c.

                                                            {
    .event_name = "presence",
    .start_publishing = publisher_start,
    .stop_publishing = publisher_stop,
};

Referenced by load_module(), and unload_module().

◆ publish_exten_state_serializer

struct ast_taskprocessor* publish_exten_state_serializer

static

Serializer for outbound extension state publishing.

Definition at line 60 of file res_pjsip_exten_state.c.

Referenced by exten_state_publisher_state_cb(), load_module(), and unload_module().

◆ publishers

struct ao2_container* publishers

static

Container of active outbound extension state publishers.

Definition at line 57 of file res_pjsip_exten_state.c.

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ BODY_SIZE

◆ DEFAULT_DIALOG_BODY

◆ DEFAULT_PRESENCE_BODY

◆ EVENT_TYPE_SIZE

◆ INITIAL_LAST_EXTEN_STATE

◆ PUBLISHER_BUCKETS

Function Documentation

◆ __reg_module()

◆ __unreg_module()

◆ add_datastore()

◆ alloc_notify_task_data()

◆ AST_MODULE_SELF_SYM()

◆ build_regex()

◆ exten_state_data_alloc()

◆ exten_state_data_destructor()

◆ exten_state_pub_data_alloc()

◆ exten_state_pub_data_destroy()

◆ exten_state_publisher_cb()

◆ exten_state_publisher_cmp()

◆ exten_state_publisher_destroy()

◆ exten_state_publisher_hash()

◆ exten_state_publisher_state_cb()

◆ exten_state_subscription_alloc()

◆ exten_state_subscription_destructor()

◆ get_exten_state_sub()

◆ get_notify_data()

◆ get_resource_display_name()

◆ get_user_agent()

◆ load_module()

◆ new_subscribe()

◆ notify_task()

◆ notify_task_data_destructor()

◆ publisher_start()

◆ publisher_stop()

◆ state_changed()

◆ state_changed_destroy()

◆ subscription_established()

◆ subscription_shutdown()

◆ to_ami()

◆ unload_module()

Variable Documentation

◆ __mod_info

◆ ast_module_info

◆ dialog_handler

◆ dialog_notifier

◆ dialog_publisher

◆ ds_info

◆ ds_name

◆ presence_handler

◆ presence_notifier

◆ presence_publisher

◆ publish_exten_state_serializer

◆ publishers