* Eliminated RAII_VAR() usage in ast_sip_persistent_endpoint_update_state(). * Added a missing allocation failure check to persistent_endpoint_find_or_create(). * Made persistent_endpoint_find_or_create() create the new object without a lock as it isn't needed. * Cleaned up some ao2 container allocation idioms. * Reordered res_pjsip_mwi.c load_module() and unload_module() Change-Id: If8ce88fbd82a0c72a37a2388f74f77237a6a36a8
1344 lines
36 KiB
C
1344 lines
36 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2013, Digium, Inc.
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*
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* Mark Michelson <mmichelson@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*** MODULEINFO
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<depend>pjproject</depend>
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<depend>res_pjsip</depend>
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<depend>res_pjsip_pubsub</depend>
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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#include <pjsip.h>
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#include <pjsip_simple.h>
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#include <pjlib.h>
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#include "asterisk/res_pjsip.h"
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#include "asterisk/res_pjsip_pubsub.h"
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#include "asterisk/res_pjsip_body_generator_types.h"
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#include "asterisk/module.h"
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#include "asterisk/logger.h"
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#include "asterisk/astobj2.h"
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#include "asterisk/taskprocessor.h"
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#include "asterisk/sorcery.h"
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#include "asterisk/stasis.h"
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#include "asterisk/app.h"
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struct mwi_subscription;
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static struct ao2_container *unsolicited_mwi;
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static char *default_voicemail_extension;
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#define STASIS_BUCKETS 13
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#define MWI_BUCKETS 53
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#define MWI_TYPE "application"
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#define MWI_SUBTYPE "simple-message-summary"
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#define MWI_DATASTORE "MWI datastore"
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/*! Number of serializers in pool if one not supplied. */
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#define MWI_SERIALIZER_POOL_SIZE 8
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/*! Pool of serializers to use if not supplied. */
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static struct ast_taskprocessor *mwi_serializer_pool[MWI_SERIALIZER_POOL_SIZE];
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static void mwi_subscription_shutdown(struct ast_sip_subscription *sub);
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static void mwi_to_ami(struct ast_sip_subscription *sub, struct ast_str **buf);
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static int mwi_new_subscribe(struct ast_sip_endpoint *endpoint,
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const char *resource);
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static int mwi_subscription_established(struct ast_sip_subscription *sub);
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static void *mwi_get_notify_data(struct ast_sip_subscription *sub);
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static struct ast_sip_notifier mwi_notifier = {
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.default_accept = MWI_TYPE"/"MWI_SUBTYPE,
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.new_subscribe = mwi_new_subscribe,
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.subscription_established = mwi_subscription_established,
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.get_notify_data = mwi_get_notify_data,
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};
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static struct ast_sip_subscription_handler mwi_handler = {
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.event_name = "message-summary",
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.body_type = AST_SIP_MESSAGE_ACCUMULATOR,
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.accept = { MWI_TYPE"/"MWI_SUBTYPE, },
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.subscription_shutdown = mwi_subscription_shutdown,
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.to_ami = mwi_to_ami,
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.notifier = &mwi_notifier,
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};
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/*!
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* \brief Wrapper for stasis subscription
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*
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* An MWI subscription has a container of these. This
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* represents a stasis subscription for MWI state.
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*/
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struct mwi_stasis_subscription {
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/*! The MWI stasis subscription */
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struct stasis_subscription *stasis_sub;
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/*! The mailbox corresponding with the MWI subscription. Used as a hash key */
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char mailbox[1];
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};
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/*!
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* \brief A subscription for MWI
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*
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* This subscription is the basis for MWI for an endpoint. Each
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* endpoint that uses MWI will have a corresponding mwi_subscription.
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*
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* This structure acts as the owner for the underlying SIP subscription.
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* When the mwi_subscription is destroyed, the SIP subscription dies, too.
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* The mwi_subscription's lifetime is governed by its underlying stasis
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* subscriptions. When all stasis subscriptions are destroyed, the
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* mwi_subscription is destroyed as well.
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*/
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struct mwi_subscription {
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/*! Container of \ref mwi_stasis_subscription structures.
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* A single MWI subscription may be for multiple mailboxes, thus
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* requiring multiple stasis subscriptions
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*/
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struct ao2_container *stasis_subs;
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/*! The SIP subscription. Unsolicited MWI does not use this */
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struct ast_sip_subscription *sip_sub;
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/*! AORs we should react to for unsolicited MWI NOTIFY */
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char *aors;
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/*! Is the MWI solicited (i.e. Initiated with an external SUBSCRIBE) ? */
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unsigned int is_solicited;
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/*! Identifier for the subscription.
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* The identifier is the same as the corresponding endpoint's stasis ID.
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* Used as a hash key
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*/
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char id[1];
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};
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/*!
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* \internal
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* \brief Shutdown the serializers in the mwi pool.
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* \since 13.12.0
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*
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* \return Nothing
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*/
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static void mwi_serializer_pool_shutdown(void)
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{
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int idx;
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for (idx = 0; idx < MWI_SERIALIZER_POOL_SIZE; ++idx) {
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ast_taskprocessor_unreference(mwi_serializer_pool[idx]);
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mwi_serializer_pool[idx] = NULL;
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}
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}
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/*!
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* \internal
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* \brief Setup the serializers in the mwi pool.
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* \since 13.12.0
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*
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* \retval 0 on success.
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* \retval -1 on error.
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*/
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static int mwi_serializer_pool_setup(void)
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{
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char tps_name[AST_TASKPROCESSOR_MAX_NAME + 1];
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int idx;
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for (idx = 0; idx < MWI_SERIALIZER_POOL_SIZE; ++idx) {
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/* Create name with seq number appended. */
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ast_taskprocessor_build_name(tps_name, sizeof(tps_name), "pjsip/mwi");
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mwi_serializer_pool[idx] = ast_sip_create_serializer(tps_name);
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if (!mwi_serializer_pool[idx]) {
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mwi_serializer_pool_shutdown();
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return -1;
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}
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}
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return 0;
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}
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/*!
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* \internal
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* \brief Pick a mwi serializer from the pool.
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* \since 13.12.0
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*
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* \retval least queue size task processor.
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*/
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static struct ast_taskprocessor *get_mwi_serializer(void)
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{
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int idx;
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int pos;
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if (!mwi_serializer_pool[0]) {
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return NULL;
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}
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for (pos = idx = 0; idx < MWI_SERIALIZER_POOL_SIZE; ++idx) {
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if (ast_taskprocessor_size(mwi_serializer_pool[idx]) < ast_taskprocessor_size(mwi_serializer_pool[pos])) {
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pos = idx;
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}
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}
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return mwi_serializer_pool[pos];
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}
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/*!
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* \internal
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* \brief Set taskprocessor alert levels for the serializers in the mwi pool.
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* \since 13.12.0
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*
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* \retval 0 on success.
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* \retval -1 on error.
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*/
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static int mwi_serializer_set_alert_levels(void)
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{
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int idx;
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long tps_queue_high;
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long tps_queue_low;
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if (!mwi_serializer_pool[0]) {
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return -1;
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}
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tps_queue_high = ast_sip_get_mwi_tps_queue_high();
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if (tps_queue_high <= 0) {
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ast_log(AST_LOG_WARNING, "Invalid taskprocessor high water alert trigger level '%ld'\n",
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tps_queue_high);
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tps_queue_high = AST_TASKPROCESSOR_HIGH_WATER_LEVEL;
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}
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tps_queue_low = ast_sip_get_mwi_tps_queue_low();
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if (tps_queue_low < -1 || tps_queue_high < tps_queue_low) {
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ast_log(AST_LOG_WARNING, "Invalid taskprocessor low water clear alert level '%ld'\n",
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tps_queue_low);
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tps_queue_low = -1;
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}
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for (idx = 0; idx < MWI_SERIALIZER_POOL_SIZE; ++idx) {
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if (ast_taskprocessor_alert_set_levels(mwi_serializer_pool[idx], tps_queue_low, tps_queue_high)) {
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ast_log(AST_LOG_WARNING, "Failed to set alert levels for MWI serializer pool #%d.\n",
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idx);
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}
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}
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return 0;
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}
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static void mwi_stasis_cb(void *userdata, struct stasis_subscription *sub,
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struct stasis_message *msg);
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static struct mwi_stasis_subscription *mwi_stasis_subscription_alloc(const char *mailbox, struct mwi_subscription *mwi_sub)
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{
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struct mwi_stasis_subscription *mwi_stasis_sub;
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struct stasis_topic *topic;
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if (!mwi_sub) {
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return NULL;
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}
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mwi_stasis_sub = ao2_alloc(sizeof(*mwi_stasis_sub) + strlen(mailbox), NULL);
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if (!mwi_stasis_sub) {
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return NULL;
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}
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topic = ast_mwi_topic(mailbox);
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/* Safe strcpy */
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strcpy(mwi_stasis_sub->mailbox, mailbox);
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ast_debug(3, "Creating stasis MWI subscription to mailbox %s for endpoint %s\n",
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mailbox, mwi_sub->id);
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ao2_ref(mwi_sub, +1);
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mwi_stasis_sub->stasis_sub = stasis_subscribe_pool(topic, mwi_stasis_cb, mwi_sub);
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if (!mwi_stasis_sub->stasis_sub) {
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/* Failed to subscribe. */
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ao2_ref(mwi_stasis_sub, -1);
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ao2_ref(mwi_sub, -1);
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mwi_stasis_sub = NULL;
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}
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return mwi_stasis_sub;
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}
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static int stasis_sub_hash(const void *obj, const int flags)
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{
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const struct mwi_stasis_subscription *object;
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const char *key;
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switch (flags & OBJ_SEARCH_MASK) {
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case OBJ_SEARCH_KEY:
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key = obj;
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break;
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case OBJ_SEARCH_OBJECT:
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object = obj;
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key = object->mailbox;
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break;
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default:
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ast_assert(0);
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return 0;
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}
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return ast_str_hash(key);
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}
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static int stasis_sub_cmp(void *obj, void *arg, int flags)
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{
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const struct mwi_stasis_subscription *sub_left = obj;
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const struct mwi_stasis_subscription *sub_right = arg;
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const char *right_key = arg;
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int cmp;
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switch (flags & OBJ_SEARCH_MASK) {
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case OBJ_SEARCH_OBJECT:
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right_key = sub_right->mailbox;
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/* Fall through */
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case OBJ_SEARCH_KEY:
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cmp = strcmp(sub_left->mailbox, right_key);
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break;
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case OBJ_SEARCH_PARTIAL_KEY:
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cmp = strncmp(sub_left->mailbox, right_key, strlen(right_key));
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break;
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default:
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cmp = 0;
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break;
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}
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if (cmp) {
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return 0;
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}
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return CMP_MATCH;
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}
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static void mwi_subscription_destructor(void *obj)
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{
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struct mwi_subscription *sub = obj;
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ast_debug(3, "Destroying MWI subscription for endpoint %s\n", sub->id);
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if (sub->is_solicited) {
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ast_sip_subscription_destroy(sub->sip_sub);
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}
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ao2_cleanup(sub->stasis_subs);
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ast_free(sub->aors);
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}
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static struct mwi_subscription *mwi_subscription_alloc(struct ast_sip_endpoint *endpoint,
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unsigned int is_solicited, struct ast_sip_subscription *sip_sub)
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{
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struct mwi_subscription *sub;
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const char *endpoint_id = ast_sorcery_object_get_id(endpoint);
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sub = ao2_alloc(sizeof(*sub) + strlen(endpoint_id),
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mwi_subscription_destructor);
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if (!sub) {
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return NULL;
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}
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/* Safe strcpy */
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strcpy(sub->id, endpoint_id);
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/* Unsolicited MWI doesn't actually result in a SIP subscription being
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* created. This is because a SIP subscription associates with a dialog.
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* Most devices expect unsolicited MWI NOTIFYs to appear out of dialog. If
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* they receive an in-dialog MWI NOTIFY (i.e. with a to-tag), then they
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* will reject the NOTIFY with a 481, thus resulting in message-waiting
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* state not being updated on the device
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*/
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if (is_solicited) {
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sub->sip_sub = sip_sub;
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}
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sub->stasis_subs = ao2_container_alloc(STASIS_BUCKETS, stasis_sub_hash, stasis_sub_cmp);
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if (!sub->stasis_subs) {
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ao2_cleanup(sub);
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return NULL;
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}
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sub->is_solicited = is_solicited;
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if (!is_solicited && !ast_strlen_zero(endpoint->aors)) {
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sub->aors = ast_strdup(endpoint->aors);
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if (!sub->aors) {
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ao2_ref(sub, -1);
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return NULL;
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}
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}
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ast_debug(3, "Created %s MWI subscription for endpoint %s\n", is_solicited ? "solicited" : "unsolicited", sub->id);
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return sub;
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}
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static int mwi_sub_hash(const void *obj, const int flags)
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{
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const struct mwi_subscription *object;
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const char *key;
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switch (flags & OBJ_SEARCH_MASK) {
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case OBJ_SEARCH_KEY:
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key = obj;
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break;
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case OBJ_SEARCH_OBJECT:
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object = obj;
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key = object->id;
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break;
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default:
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ast_assert(0);
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return 0;
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}
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return ast_str_hash(key);
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}
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static int mwi_sub_cmp(void *obj, void *arg, int flags)
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{
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const struct mwi_subscription *sub_left = obj;
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const struct mwi_subscription *sub_right = arg;
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const char *right_key = arg;
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int cmp;
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switch (flags & OBJ_SEARCH_MASK) {
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case OBJ_SEARCH_OBJECT:
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right_key = sub_right->id;
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/* Fall through */
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case OBJ_SEARCH_KEY:
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cmp = strcmp(sub_left->id, right_key);
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break;
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case OBJ_SEARCH_PARTIAL_KEY:
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cmp = strncmp(sub_left->id, right_key, strlen(right_key));
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break;
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default:
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cmp = 0;
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break;
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|
}
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if (cmp) {
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return 0;
|
|
}
|
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return CMP_MATCH;
|
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}
|
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static int get_message_count(void *obj, void *arg, int flags)
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{
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struct stasis_message *msg;
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struct mwi_stasis_subscription *mwi_stasis = obj;
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struct ast_sip_message_accumulator *counter = arg;
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struct ast_mwi_state *mwi_state;
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msg = stasis_cache_get(ast_mwi_state_cache(), ast_mwi_state_type(), mwi_stasis->mailbox);
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if (!msg) {
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return 0;
|
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}
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|
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mwi_state = stasis_message_data(msg);
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counter->old_msgs += mwi_state->old_msgs;
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counter->new_msgs += mwi_state->new_msgs;
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ao2_ref(msg, -1);
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return 0;
|
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}
|
|
|
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static void set_voicemail_extension(pj_pool_t *pool, pjsip_sip_uri *local_uri,
|
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struct ast_sip_message_accumulator *counter, const char *voicemail_extension)
|
|
{
|
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pjsip_sip_uri *account_uri;
|
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const char *vm_exten;
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|
|
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if (ast_strlen_zero(voicemail_extension)) {
|
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vm_exten = default_voicemail_extension;
|
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} else {
|
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vm_exten = voicemail_extension;
|
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}
|
|
|
|
if (!ast_strlen_zero(vm_exten)) {
|
|
account_uri = pjsip_uri_clone(pool, local_uri);
|
|
pj_strdup2(pool, &account_uri->user, vm_exten);
|
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pjsip_uri_print(PJSIP_URI_IN_CONTACT_HDR, account_uri, counter->message_account, sizeof(counter->message_account));
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|
}
|
|
}
|
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|
|
struct unsolicited_mwi_data {
|
|
struct mwi_subscription *sub;
|
|
struct ast_sip_endpoint *endpoint;
|
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pjsip_evsub_state state;
|
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struct ast_sip_message_accumulator *counter;
|
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};
|
|
|
|
static int send_unsolicited_mwi_notify_to_contact(void *obj, void *arg, int flags)
|
|
{
|
|
struct unsolicited_mwi_data *mwi_data = arg;
|
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struct mwi_subscription *sub = mwi_data->sub;
|
|
struct ast_sip_endpoint *endpoint = mwi_data->endpoint;
|
|
pjsip_evsub_state state = mwi_data->state;
|
|
struct ast_sip_contact *contact = obj;
|
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const char *state_name;
|
|
pjsip_tx_data *tdata;
|
|
pjsip_sub_state_hdr *sub_state;
|
|
pjsip_event_hdr *event;
|
|
pjsip_from_hdr *from;
|
|
pjsip_sip_uri *from_uri;
|
|
const pjsip_hdr *allow_events = pjsip_evsub_get_allow_events_hdr(NULL);
|
|
struct ast_sip_body body;
|
|
struct ast_str *body_text;
|
|
struct ast_sip_body_data body_data = {
|
|
.body_type = AST_SIP_MESSAGE_ACCUMULATOR,
|
|
.body_data = mwi_data->counter,
|
|
};
|
|
|
|
if (ast_sip_create_request("NOTIFY", NULL, endpoint, NULL, contact, &tdata)) {
|
|
ast_log(LOG_WARNING, "Unable to create unsolicited NOTIFY request to endpoint %s URI %s\n", sub->id, contact->uri);
|
|
return 0;
|
|
}
|
|
|
|
body.type = MWI_TYPE;
|
|
body.subtype = MWI_SUBTYPE;
|
|
body_text = ast_str_create(64);
|
|
if (!body_text) {
|
|
return 0;
|
|
}
|
|
|
|
from = PJSIP_MSG_FROM_HDR(tdata->msg);
|
|
from_uri = pjsip_uri_get_uri(from->uri);
|
|
|
|
if (!ast_strlen_zero(endpoint->subscription.mwi.fromuser)) {
|
|
pj_strdup2(tdata->pool, &from_uri->user, endpoint->subscription.mwi.fromuser);
|
|
}
|
|
|
|
set_voicemail_extension(tdata->pool, from_uri, mwi_data->counter, endpoint->subscription.mwi.voicemail_extension);
|
|
|
|
if (ast_sip_pubsub_generate_body_content(body.type, body.subtype, &body_data, &body_text)) {
|
|
ast_log(LOG_WARNING, "Unable to generate SIP MWI NOTIFY body.\n");
|
|
ast_free(body_text);
|
|
return 0;
|
|
}
|
|
|
|
body.body_text = ast_str_buffer(body_text);
|
|
|
|
switch (state) {
|
|
case PJSIP_EVSUB_STATE_ACTIVE:
|
|
state_name = "active";
|
|
break;
|
|
case PJSIP_EVSUB_STATE_TERMINATED:
|
|
default:
|
|
state_name = "terminated";
|
|
break;
|
|
}
|
|
|
|
sub_state = pjsip_sub_state_hdr_create(tdata->pool);
|
|
pj_cstr(&sub_state->sub_state, state_name);
|
|
pjsip_msg_add_hdr(tdata->msg, (pjsip_hdr *) sub_state);
|
|
|
|
event = pjsip_event_hdr_create(tdata->pool);
|
|
pj_cstr(&event->event_type, "message-summary");
|
|
pjsip_msg_add_hdr(tdata->msg, (pjsip_hdr *) event);
|
|
|
|
pjsip_msg_add_hdr(tdata->msg, pjsip_hdr_shallow_clone(tdata->pool, allow_events));
|
|
ast_sip_add_body(tdata, &body);
|
|
ast_sip_send_request(tdata, NULL, endpoint, NULL, NULL);
|
|
|
|
ast_free(body_text);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct ast_sip_aor *find_aor_for_resource(struct ast_sip_endpoint *endpoint, const char *resource)
|
|
{
|
|
struct ast_sip_aor *aor;
|
|
char *aor_name;
|
|
char *aors_copy;
|
|
|
|
/* Direct match */
|
|
if ((aor = ast_sip_location_retrieve_aor(resource))) {
|
|
return aor;
|
|
}
|
|
|
|
if (!endpoint) {
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* This may be a subscribe to the voicemail_extension. If so,
|
|
* look for an aor belonging to this endpoint that has a matching
|
|
* voicemail_extension.
|
|
*/
|
|
aors_copy = ast_strdupa(endpoint->aors);
|
|
while ((aor_name = ast_strip(strsep(&aors_copy, ",")))) {
|
|
struct ast_sip_aor *check_aor = ast_sip_location_retrieve_aor(aor_name);
|
|
|
|
if (!check_aor) {
|
|
continue;
|
|
}
|
|
|
|
if (!ast_strlen_zero(check_aor->voicemail_extension)
|
|
&& !strcasecmp(check_aor->voicemail_extension, resource)) {
|
|
ast_debug(1, "Found an aor (%s) that matches voicemail_extension %s\n", aor_name, resource);
|
|
return check_aor;
|
|
}
|
|
|
|
ao2_ref(check_aor, -1);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void send_unsolicited_mwi_notify(struct mwi_subscription *sub,
|
|
struct ast_sip_message_accumulator *counter)
|
|
{
|
|
RAII_VAR(struct ast_sip_endpoint *, endpoint, ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(),
|
|
"endpoint", sub->id), ao2_cleanup);
|
|
char *endpoint_aors;
|
|
char *aor_name;
|
|
|
|
if (!endpoint) {
|
|
ast_log(LOG_WARNING, "Unable to send unsolicited MWI to %s because endpoint does not exist\n",
|
|
sub->id);
|
|
return;
|
|
}
|
|
if (ast_strlen_zero(endpoint->aors)) {
|
|
ast_log(LOG_WARNING, "Unable to send unsolicited MWI to %s because the endpoint has no"
|
|
" configured AORs\n", sub->id);
|
|
return;
|
|
}
|
|
|
|
endpoint_aors = ast_strdupa(endpoint->aors);
|
|
|
|
ast_debug(5, "Sending unsolicited MWI NOTIFY to endpoint %s, new messages: %d, old messages: %d\n",
|
|
sub->id, counter->new_msgs, counter->old_msgs);
|
|
|
|
while ((aor_name = ast_strip(strsep(&endpoint_aors, ",")))) {
|
|
RAII_VAR(struct ast_sip_aor *, aor, ast_sip_location_retrieve_aor(aor_name), ao2_cleanup);
|
|
RAII_VAR(struct ao2_container *, contacts, NULL, ao2_cleanup);
|
|
struct unsolicited_mwi_data mwi_data = {
|
|
.sub = sub,
|
|
.endpoint = endpoint,
|
|
.counter = counter,
|
|
};
|
|
|
|
if (!aor) {
|
|
ast_log(LOG_WARNING, "Unable to locate AOR %s for unsolicited MWI\n", aor_name);
|
|
continue;
|
|
}
|
|
|
|
contacts = ast_sip_location_retrieve_aor_contacts(aor);
|
|
if (!contacts || (ao2_container_count(contacts) == 0)) {
|
|
ast_debug(1, "No contacts bound to AOR %s. Cannot send unsolicited MWI until a contact registers.\n", aor_name);
|
|
continue;
|
|
}
|
|
|
|
ao2_callback(contacts, OBJ_NODATA, send_unsolicited_mwi_notify_to_contact, &mwi_data);
|
|
}
|
|
}
|
|
|
|
static void send_mwi_notify(struct mwi_subscription *sub)
|
|
{
|
|
struct ast_sip_message_accumulator counter = {
|
|
.old_msgs = 0,
|
|
.new_msgs = 0,
|
|
.message_account[0] = '\0',
|
|
};
|
|
struct ast_sip_body_data data = {
|
|
.body_type = AST_SIP_MESSAGE_ACCUMULATOR,
|
|
.body_data = &counter,
|
|
};
|
|
const char *resource = ast_sip_subscription_get_resource_name(sub->sip_sub);
|
|
|
|
ao2_callback(sub->stasis_subs, OBJ_NODATA, get_message_count, &counter);
|
|
|
|
if (sub->is_solicited) {
|
|
struct ast_sip_endpoint *endpoint = ast_sip_subscription_get_endpoint(sub->sip_sub);
|
|
struct ast_sip_aor *aor = find_aor_for_resource(endpoint, resource);
|
|
pjsip_dialog *dlg = ast_sip_subscription_get_dialog(sub->sip_sub);
|
|
pjsip_sip_uri *sip_uri = ast_sip_subscription_get_sip_uri(sub->sip_sub);
|
|
|
|
if (aor && dlg && sip_uri) {
|
|
set_voicemail_extension(dlg->pool, sip_uri, &counter, aor->voicemail_extension);
|
|
}
|
|
|
|
ao2_cleanup(aor);
|
|
ao2_cleanup(endpoint);
|
|
ast_sip_subscription_notify(sub->sip_sub, &data, 0);
|
|
|
|
return;
|
|
}
|
|
|
|
send_unsolicited_mwi_notify(sub, &counter);
|
|
}
|
|
|
|
static int unsubscribe_stasis(void *obj, void *arg, int flags)
|
|
{
|
|
struct mwi_stasis_subscription *mwi_stasis = obj;
|
|
if (mwi_stasis->stasis_sub) {
|
|
ast_debug(3, "Removing stasis subscription to mailbox %s\n", mwi_stasis->mailbox);
|
|
mwi_stasis->stasis_sub = stasis_unsubscribe_and_join(mwi_stasis->stasis_sub);
|
|
}
|
|
return CMP_MATCH;
|
|
}
|
|
|
|
static void mwi_subscription_shutdown(struct ast_sip_subscription *sub)
|
|
{
|
|
struct mwi_subscription *mwi_sub;
|
|
struct ast_datastore *mwi_datastore;
|
|
|
|
mwi_datastore = ast_sip_subscription_get_datastore(sub, MWI_DATASTORE);
|
|
if (!mwi_datastore) {
|
|
return;
|
|
}
|
|
|
|
mwi_sub = mwi_datastore->data;
|
|
ao2_callback(mwi_sub->stasis_subs, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, unsubscribe_stasis, NULL);
|
|
ast_sip_subscription_remove_datastore(sub, MWI_DATASTORE);
|
|
|
|
ao2_ref(mwi_datastore, -1);
|
|
}
|
|
|
|
static void mwi_ds_destroy(void *data)
|
|
{
|
|
struct mwi_subscription *sub = data;
|
|
|
|
ao2_ref(sub, -1);
|
|
}
|
|
|
|
static struct ast_datastore_info mwi_ds_info = {
|
|
.destroy = mwi_ds_destroy,
|
|
};
|
|
|
|
static int add_mwi_datastore(struct mwi_subscription *sub)
|
|
{
|
|
struct ast_datastore *mwi_datastore;
|
|
int res;
|
|
|
|
mwi_datastore = ast_sip_subscription_alloc_datastore(&mwi_ds_info, MWI_DATASTORE);
|
|
if (!mwi_datastore) {
|
|
return -1;
|
|
}
|
|
ao2_ref(sub, +1);
|
|
mwi_datastore->data = sub;
|
|
|
|
/*
|
|
* NOTE: Adding the datastore to the subscription creates a ref loop
|
|
* that must be manually broken.
|
|
*/
|
|
res = ast_sip_subscription_add_datastore(sub->sip_sub, mwi_datastore);
|
|
ao2_ref(mwi_datastore, -1);
|
|
return res;
|
|
}
|
|
|
|
/*!
|
|
* \brief Determines if an endpoint is receiving unsolicited MWI for a particular mailbox.
|
|
*
|
|
* \param endpoint The endpoint to check
|
|
* \param mailbox The candidate mailbox
|
|
* \retval 0 The endpoint does not receive unsolicited MWI for this mailbox
|
|
* \retval 1 The endpoint receives unsolicited MWI for this mailbox
|
|
*/
|
|
static int endpoint_receives_unsolicited_mwi_for_mailbox(struct ast_sip_endpoint *endpoint,
|
|
const char *mailbox)
|
|
{
|
|
struct ao2_iterator *mwi_subs;
|
|
struct mwi_subscription *mwi_sub;
|
|
const char *endpoint_id = ast_sorcery_object_get_id(endpoint);
|
|
int ret = 0;
|
|
|
|
mwi_subs = ao2_find(unsolicited_mwi, endpoint_id, OBJ_SEARCH_KEY | OBJ_MULTIPLE);
|
|
if (!mwi_subs) {
|
|
return 0;
|
|
}
|
|
|
|
for (; (mwi_sub = ao2_iterator_next(mwi_subs)) && !ret; ao2_cleanup(mwi_sub)) {
|
|
struct mwi_stasis_subscription *mwi_stasis;
|
|
|
|
mwi_stasis = ao2_find(mwi_sub->stasis_subs, mailbox, OBJ_SEARCH_KEY);
|
|
if (mwi_stasis) {
|
|
if (endpoint->subscription.mwi.subscribe_replaces_unsolicited) {
|
|
unsubscribe_stasis(mwi_stasis, NULL, 0);
|
|
ao2_unlink(mwi_sub->stasis_subs, mwi_stasis);
|
|
} else {
|
|
ret = 1;
|
|
}
|
|
ao2_cleanup(mwi_stasis);
|
|
}
|
|
}
|
|
|
|
ao2_iterator_destroy(mwi_subs);
|
|
return ret;
|
|
}
|
|
|
|
/*!
|
|
* \brief Determine if an endpoint is a candidate to be able to subscribe for MWI
|
|
*
|
|
* Currently, this just makes sure that the endpoint is not already receiving unsolicted
|
|
* MWI for any of an AOR's configured mailboxes.
|
|
*
|
|
* \param obj The AOR to which the endpoint is subscribing.
|
|
* \param arg The endpoint that is attempting to subscribe.
|
|
* \param flags Unused.
|
|
* \retval 0 Endpoint is a candidate to subscribe to MWI on the AOR.
|
|
* \retval -1 The endpoint cannot subscribe to MWI on the AOR.
|
|
*/
|
|
static int mwi_validate_for_aor(void *obj, void *arg, int flags)
|
|
{
|
|
struct ast_sip_aor *aor = obj;
|
|
struct ast_sip_endpoint *endpoint = arg;
|
|
char *mailboxes;
|
|
char *mailbox;
|
|
|
|
if (ast_strlen_zero(aor->mailboxes)) {
|
|
return 0;
|
|
}
|
|
|
|
mailboxes = ast_strdupa(aor->mailboxes);
|
|
while ((mailbox = ast_strip(strsep(&mailboxes, ",")))) {
|
|
if (ast_strlen_zero(mailbox)) {
|
|
continue;
|
|
}
|
|
|
|
if (endpoint_receives_unsolicited_mwi_for_mailbox(endpoint, mailbox)) {
|
|
ast_debug(1, "Endpoint '%s' already configured for unsolicited MWI for mailbox '%s'. "
|
|
"Denying MWI subscription to %s\n", ast_sorcery_object_get_id(endpoint), mailbox,
|
|
ast_sorcery_object_get_id(aor));
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mwi_on_aor(void *obj, void *arg, int flags)
|
|
{
|
|
struct ast_sip_aor *aor = obj;
|
|
struct mwi_subscription *sub = arg;
|
|
char *mailboxes;
|
|
char *mailbox;
|
|
|
|
if (ast_strlen_zero(aor->mailboxes)) {
|
|
return 0;
|
|
}
|
|
|
|
mailboxes = ast_strdupa(aor->mailboxes);
|
|
while ((mailbox = ast_strip(strsep(&mailboxes, ",")))) {
|
|
struct mwi_stasis_subscription *mwi_stasis_sub;
|
|
|
|
if (ast_strlen_zero(mailbox)) {
|
|
continue;
|
|
}
|
|
|
|
mwi_stasis_sub = mwi_stasis_subscription_alloc(mailbox, sub);
|
|
if (!mwi_stasis_sub) {
|
|
continue;
|
|
}
|
|
|
|
ao2_link(sub->stasis_subs, mwi_stasis_sub);
|
|
ao2_ref(mwi_stasis_sub, -1);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct mwi_subscription *mwi_create_subscription(
|
|
struct ast_sip_endpoint *endpoint, struct ast_sip_subscription *sip_sub)
|
|
{
|
|
struct mwi_subscription *sub = mwi_subscription_alloc(endpoint, 1, sip_sub);
|
|
|
|
if (!sub) {
|
|
return NULL;
|
|
}
|
|
|
|
if (add_mwi_datastore(sub)) {
|
|
ast_log(LOG_WARNING, "Unable to add datastore for MWI subscription to %s\n",
|
|
sub->id);
|
|
ao2_ref(sub, -1);
|
|
return NULL;
|
|
}
|
|
|
|
return sub;
|
|
}
|
|
|
|
static struct mwi_subscription *mwi_subscribe_single(
|
|
struct ast_sip_endpoint *endpoint, struct ast_sip_subscription *sip_sub, const char *name)
|
|
{
|
|
struct ast_sip_aor *aor;
|
|
struct mwi_subscription *sub;
|
|
|
|
aor = find_aor_for_resource(endpoint, name);
|
|
if (!aor) {
|
|
ast_log(LOG_WARNING, "Unable to locate aor %s. MWI subscription failed.\n", name);
|
|
return NULL;
|
|
}
|
|
|
|
sub = mwi_create_subscription(endpoint, sip_sub);
|
|
if (sub) {
|
|
mwi_on_aor(aor, sub, 0);
|
|
}
|
|
|
|
ao2_ref(aor, -1);
|
|
return sub;
|
|
}
|
|
|
|
static struct mwi_subscription *mwi_subscribe_all(
|
|
struct ast_sip_endpoint *endpoint, struct ast_sip_subscription *sip_sub)
|
|
{
|
|
struct mwi_subscription *sub;
|
|
|
|
sub = mwi_create_subscription(endpoint, sip_sub);
|
|
if (!sub) {
|
|
return NULL;
|
|
}
|
|
|
|
ast_sip_for_each_aor(endpoint->aors, mwi_on_aor, sub);
|
|
return sub;
|
|
}
|
|
|
|
static int mwi_new_subscribe(struct ast_sip_endpoint *endpoint,
|
|
const char *resource)
|
|
{
|
|
RAII_VAR(struct ast_sip_aor *, aor, NULL, ao2_cleanup);
|
|
|
|
if (ast_strlen_zero(resource)) {
|
|
if (ast_sip_for_each_aor(endpoint->aors, mwi_validate_for_aor, endpoint)) {
|
|
return 500;
|
|
}
|
|
return 200;
|
|
}
|
|
|
|
aor = find_aor_for_resource(endpoint, resource);
|
|
if (!aor) {
|
|
ast_debug(1, "Unable to locate aor %s. MWI subscription failed.\n", resource);
|
|
return 404;
|
|
}
|
|
|
|
if (ast_strlen_zero(aor->mailboxes)) {
|
|
ast_debug(1, "AOR %s has no configured mailboxes. MWI subscription failed.\n",
|
|
resource);
|
|
return 404;
|
|
}
|
|
|
|
if (mwi_validate_for_aor(aor, endpoint, 0)) {
|
|
return 500;
|
|
}
|
|
|
|
return 200;
|
|
}
|
|
|
|
static int mwi_subscription_established(struct ast_sip_subscription *sip_sub)
|
|
{
|
|
const char *resource = ast_sip_subscription_get_resource_name(sip_sub);
|
|
struct mwi_subscription *sub;
|
|
struct ast_sip_endpoint *endpoint = ast_sip_subscription_get_endpoint(sip_sub);
|
|
|
|
/* no aor in uri? subscribe to all on endpoint */
|
|
if (ast_strlen_zero(resource)) {
|
|
sub = mwi_subscribe_all(endpoint, sip_sub);
|
|
} else {
|
|
sub = mwi_subscribe_single(endpoint, sip_sub, resource);
|
|
}
|
|
if (!sub) {
|
|
ao2_cleanup(endpoint);
|
|
return -1;
|
|
}
|
|
|
|
if (!ao2_container_count(sub->stasis_subs)) {
|
|
/*
|
|
* We setup no MWI subscriptions so remove the MWI datastore
|
|
* to break the ref loop.
|
|
*/
|
|
ast_sip_subscription_remove_datastore(sip_sub, MWI_DATASTORE);
|
|
}
|
|
|
|
ao2_cleanup(sub);
|
|
ao2_cleanup(endpoint);
|
|
return 0;
|
|
}
|
|
|
|
static void *mwi_get_notify_data(struct ast_sip_subscription *sub)
|
|
{
|
|
struct ast_sip_message_accumulator *counter;
|
|
struct mwi_subscription *mwi_sub;
|
|
struct ast_datastore *mwi_datastore;
|
|
struct ast_sip_aor *aor;
|
|
struct ast_sip_endpoint *endpoint = ast_sip_subscription_get_endpoint(sub);
|
|
|
|
mwi_datastore = ast_sip_subscription_get_datastore(sub, MWI_DATASTORE);
|
|
if (!mwi_datastore) {
|
|
return NULL;
|
|
}
|
|
mwi_sub = mwi_datastore->data;
|
|
|
|
counter = ao2_alloc(sizeof(*counter), NULL);
|
|
if (!counter) {
|
|
ao2_cleanup(mwi_datastore);
|
|
return NULL;
|
|
}
|
|
|
|
if ((aor = find_aor_for_resource(endpoint, ast_sip_subscription_get_resource_name(sub)))) {
|
|
pjsip_dialog *dlg = ast_sip_subscription_get_dialog(sub);
|
|
pjsip_sip_uri *sip_uri = ast_sip_subscription_get_sip_uri(sub);
|
|
|
|
if (dlg && sip_uri) {
|
|
set_voicemail_extension(dlg->pool, sip_uri, counter, aor->voicemail_extension);
|
|
}
|
|
ao2_ref(aor, -1);
|
|
}
|
|
ao2_cleanup(endpoint);
|
|
|
|
ao2_callback(mwi_sub->stasis_subs, OBJ_NODATA, get_message_count, counter);
|
|
ao2_cleanup(mwi_datastore);
|
|
return counter;
|
|
}
|
|
|
|
static void mwi_subscription_mailboxes_str(struct ao2_container *stasis_subs,
|
|
struct ast_str **str)
|
|
{
|
|
int is_first = 1;
|
|
struct mwi_stasis_subscription *node;
|
|
struct ao2_iterator i = ao2_iterator_init(stasis_subs, 0);
|
|
|
|
while ((node = ao2_iterator_next(&i))) {
|
|
if (is_first) {
|
|
is_first = 0;
|
|
ast_str_append(str, 0, "%s", node->mailbox);
|
|
} else {
|
|
ast_str_append(str, 0, ",%s", node->mailbox);
|
|
}
|
|
ao2_ref(node, -1);
|
|
}
|
|
ao2_iterator_destroy(&i);
|
|
}
|
|
|
|
static void mwi_to_ami(struct ast_sip_subscription *sub,
|
|
struct ast_str **buf)
|
|
{
|
|
struct mwi_subscription *mwi_sub;
|
|
struct ast_datastore *mwi_datastore;
|
|
|
|
mwi_datastore = ast_sip_subscription_get_datastore(sub, MWI_DATASTORE);
|
|
if (!mwi_datastore) {
|
|
return;
|
|
}
|
|
|
|
mwi_sub = mwi_datastore->data;
|
|
|
|
ast_str_append(buf, 0, "SubscriptionType: mwi\r\n");
|
|
ast_str_append(buf, 0, "Mailboxes: ");
|
|
mwi_subscription_mailboxes_str(mwi_sub->stasis_subs, buf);
|
|
ast_str_append(buf, 0, "\r\n");
|
|
|
|
ao2_ref(mwi_datastore, -1);
|
|
}
|
|
|
|
static int serialized_notify(void *userdata)
|
|
{
|
|
struct mwi_subscription *mwi_sub = userdata;
|
|
|
|
send_mwi_notify(mwi_sub);
|
|
ao2_ref(mwi_sub, -1);
|
|
return 0;
|
|
}
|
|
|
|
static int serialized_cleanup(void *userdata)
|
|
{
|
|
struct mwi_subscription *mwi_sub = userdata;
|
|
|
|
/* This is getting rid of the reference that was added
|
|
* just before this serialized task was pushed.
|
|
*/
|
|
ao2_cleanup(mwi_sub);
|
|
/* This is getting rid of the reference held by the
|
|
* stasis subscription
|
|
*/
|
|
ao2_cleanup(mwi_sub);
|
|
return 0;
|
|
}
|
|
|
|
static int send_notify(void *obj, void *arg, int flags)
|
|
{
|
|
struct mwi_subscription *mwi_sub = obj;
|
|
struct ast_taskprocessor *serializer = mwi_sub->is_solicited
|
|
? ast_sip_subscription_get_serializer(mwi_sub->sip_sub)
|
|
: get_mwi_serializer();
|
|
|
|
if (ast_sip_push_task(serializer, serialized_notify, ao2_bump(mwi_sub))) {
|
|
ao2_ref(mwi_sub, -1);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mwi_stasis_cb(void *userdata, struct stasis_subscription *sub,
|
|
struct stasis_message *msg)
|
|
{
|
|
struct mwi_subscription *mwi_sub = userdata;
|
|
|
|
if (stasis_subscription_final_message(sub, msg)) {
|
|
if (ast_sip_push_task(NULL, serialized_cleanup, ao2_bump(mwi_sub))) {
|
|
ao2_ref(mwi_sub, -1);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (ast_mwi_state_type() == stasis_message_type(msg)) {
|
|
send_notify(mwi_sub, NULL, 0);
|
|
}
|
|
}
|
|
|
|
/*! \note Called with the unsolicited_mwi container lock held. */
|
|
static int create_mwi_subscriptions_for_endpoint(void *obj, void *arg, int flags)
|
|
{
|
|
RAII_VAR(struct mwi_subscription *, aggregate_sub, NULL, ao2_cleanup);
|
|
struct ast_sip_endpoint *endpoint = obj;
|
|
char *mailboxes, *mailbox;
|
|
|
|
if (ast_strlen_zero(endpoint->subscription.mwi.mailboxes)) {
|
|
return 0;
|
|
}
|
|
|
|
if (endpoint->subscription.mwi.aggregate) {
|
|
aggregate_sub = mwi_subscription_alloc(endpoint, 0, NULL);
|
|
if (!aggregate_sub) {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
mailboxes = ast_strdupa(endpoint->subscription.mwi.mailboxes);
|
|
while ((mailbox = ast_strip(strsep(&mailboxes, ",")))) {
|
|
struct mwi_subscription *sub;
|
|
struct mwi_stasis_subscription *mwi_stasis_sub;
|
|
|
|
if (ast_strlen_zero(mailbox)) {
|
|
continue;
|
|
}
|
|
|
|
sub = aggregate_sub ?: mwi_subscription_alloc(endpoint, 0, NULL);
|
|
mwi_stasis_sub = mwi_stasis_subscription_alloc(mailbox, sub);
|
|
if (mwi_stasis_sub) {
|
|
ao2_link(sub->stasis_subs, mwi_stasis_sub);
|
|
ao2_ref(mwi_stasis_sub, -1);
|
|
}
|
|
if (!aggregate_sub && sub) {
|
|
ao2_link_flags(unsolicited_mwi, sub, OBJ_NOLOCK);
|
|
ao2_ref(sub, -1);
|
|
}
|
|
}
|
|
if (aggregate_sub) {
|
|
ao2_link_flags(unsolicited_mwi, aggregate_sub, OBJ_NOLOCK);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int unsubscribe(void *obj, void *arg, int flags)
|
|
{
|
|
struct mwi_subscription *mwi_sub = obj;
|
|
|
|
ao2_callback(mwi_sub->stasis_subs, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, unsubscribe_stasis, NULL);
|
|
|
|
return CMP_MATCH;
|
|
}
|
|
|
|
static void create_mwi_subscriptions(void)
|
|
{
|
|
struct ao2_container *endpoints;
|
|
struct ast_variable *var;
|
|
|
|
var = ast_variable_new("mailboxes !=", "", "");
|
|
|
|
endpoints = ast_sorcery_retrieve_by_fields(ast_sip_get_sorcery(), "endpoint",
|
|
AST_RETRIEVE_FLAG_MULTIPLE, var);
|
|
|
|
ast_variables_destroy(var);
|
|
if (!endpoints) {
|
|
return;
|
|
}
|
|
|
|
/* We remove all the old stasis subscriptions first before applying the new configuration. This
|
|
* prevents a situation where there might be multiple overlapping stasis subscriptions for an
|
|
* endpoint for mailboxes. Though there may be mailbox changes during the gap between unsubscribing
|
|
* and resubscribing, up-to-date mailbox state will be sent out to the endpoint when the
|
|
* new stasis subscription is established
|
|
*/
|
|
ao2_lock(unsolicited_mwi);
|
|
ao2_callback(unsolicited_mwi, OBJ_NOLOCK | OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, unsubscribe, NULL);
|
|
ao2_callback(endpoints, OBJ_NODATA, create_mwi_subscriptions_for_endpoint, NULL);
|
|
ao2_unlock(unsolicited_mwi);
|
|
|
|
ao2_ref(endpoints, -1);
|
|
}
|
|
|
|
/*! \brief Function called to send MWI NOTIFY on any unsolicited mailboxes relating to this AOR */
|
|
static int send_contact_notify(void *obj, void *arg, int flags)
|
|
{
|
|
struct mwi_subscription *mwi_sub = obj;
|
|
const char *aor = arg;
|
|
|
|
if (!mwi_sub->aors || !strstr(mwi_sub->aors, aor)) {
|
|
return 0;
|
|
}
|
|
|
|
if (ast_sip_push_task(get_mwi_serializer(), serialized_notify, ao2_bump(mwi_sub))) {
|
|
ao2_ref(mwi_sub, -1);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief Function called when a contact is updated */
|
|
static void mwi_contact_updated(const void *object)
|
|
{
|
|
char *id = ast_strdupa(ast_sorcery_object_get_id(object)), *aor = NULL;
|
|
|
|
aor = strsep(&id, ";@");
|
|
|
|
ao2_callback(unsolicited_mwi, OBJ_NODATA, send_contact_notify, aor);
|
|
}
|
|
|
|
/*! \brief Function called when a contact is added */
|
|
static void mwi_contact_added(const void *object)
|
|
{
|
|
const struct ast_sip_contact *contact = object;
|
|
struct ao2_iterator *mwi_subs;
|
|
struct mwi_subscription *mwi_sub;
|
|
const char *endpoint_id = ast_sorcery_object_get_id(contact->endpoint);
|
|
|
|
if (ast_strlen_zero(contact->endpoint->subscription.mwi.mailboxes)) {
|
|
return;
|
|
}
|
|
|
|
ao2_lock(unsolicited_mwi);
|
|
|
|
mwi_subs = ao2_find(unsolicited_mwi, endpoint_id,
|
|
OBJ_SEARCH_KEY | OBJ_MULTIPLE | OBJ_NOLOCK | OBJ_UNLINK);
|
|
if (mwi_subs) {
|
|
for (; (mwi_sub = ao2_iterator_next(mwi_subs)); ao2_cleanup(mwi_sub)) {
|
|
unsubscribe(mwi_sub, NULL, 0);
|
|
}
|
|
ao2_iterator_destroy(mwi_subs);
|
|
}
|
|
|
|
create_mwi_subscriptions_for_endpoint(contact->endpoint, NULL, 0);
|
|
|
|
ao2_unlock(unsolicited_mwi);
|
|
|
|
mwi_contact_updated(object);
|
|
}
|
|
|
|
/*! \brief Observer for contacts so unsolicited MWI is sent when a contact changes */
|
|
static const struct ast_sorcery_observer mwi_contact_observer = {
|
|
.created = mwi_contact_added,
|
|
.updated = mwi_contact_updated,
|
|
};
|
|
|
|
/*! \brief Task invoked to send initial MWI NOTIFY for unsolicited */
|
|
static int send_initial_notify_all(void *obj)
|
|
{
|
|
ao2_callback(unsolicited_mwi, OBJ_NODATA, send_notify, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief Event callback which fires initial unsolicited MWI NOTIFY messages when we're fully booted */
|
|
static void mwi_startup_event_cb(void *data, struct stasis_subscription *sub, struct stasis_message *message)
|
|
{
|
|
struct ast_json_payload *payload;
|
|
const char *type;
|
|
|
|
if (stasis_message_type(message) != ast_manager_get_generic_type()) {
|
|
return;
|
|
}
|
|
|
|
payload = stasis_message_data(message);
|
|
type = ast_json_string_get(ast_json_object_get(payload->json, "type"));
|
|
|
|
if (strcmp(type, "FullyBooted")) {
|
|
return;
|
|
}
|
|
|
|
ast_sip_push_task(NULL, send_initial_notify_all, NULL);
|
|
|
|
stasis_unsubscribe(sub);
|
|
}
|
|
|
|
static void global_loaded(const char *object_type)
|
|
{
|
|
ast_free(default_voicemail_extension);
|
|
default_voicemail_extension = ast_sip_get_default_voicemail_extension();
|
|
mwi_serializer_set_alert_levels();
|
|
}
|
|
|
|
static struct ast_sorcery_observer global_observer = {
|
|
.loaded = global_loaded,
|
|
};
|
|
|
|
static int reload(void)
|
|
{
|
|
create_mwi_subscriptions();
|
|
return 0;
|
|
}
|
|
|
|
static int load_module(void)
|
|
{
|
|
CHECK_PJSIP_MODULE_LOADED();
|
|
|
|
if (ast_sip_register_subscription_handler(&mwi_handler)) {
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
}
|
|
|
|
if (mwi_serializer_pool_setup()) {
|
|
ast_log(AST_LOG_WARNING, "Failed to create MWI serializer pool. The default SIP pool will be used for MWI\n");
|
|
}
|
|
|
|
unsolicited_mwi = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0, MWI_BUCKETS,
|
|
mwi_sub_hash, NULL, mwi_sub_cmp);
|
|
if (!unsolicited_mwi) {
|
|
mwi_serializer_pool_shutdown();
|
|
ast_sip_unregister_subscription_handler(&mwi_handler);
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
}
|
|
create_mwi_subscriptions();
|
|
|
|
ast_sorcery_observer_add(ast_sip_get_sorcery(), "contact", &mwi_contact_observer);
|
|
ast_sorcery_observer_add(ast_sip_get_sorcery(), "global", &global_observer);
|
|
ast_sorcery_reload_object(ast_sip_get_sorcery(), "global");
|
|
|
|
if (!ast_sip_get_mwi_disable_initial_unsolicited()) {
|
|
if (ast_test_flag(&ast_options, AST_OPT_FLAG_FULLY_BOOTED)) {
|
|
ast_sip_push_task(NULL, send_initial_notify_all, NULL);
|
|
} else {
|
|
stasis_subscribe_pool(ast_manager_get_topic(), mwi_startup_event_cb, NULL);
|
|
}
|
|
}
|
|
|
|
return AST_MODULE_LOAD_SUCCESS;
|
|
}
|
|
|
|
static int unload_module(void)
|
|
{
|
|
ast_sorcery_observer_remove(ast_sip_get_sorcery(), "global", &global_observer);
|
|
ast_sorcery_observer_remove(ast_sip_get_sorcery(), "contact", &mwi_contact_observer);
|
|
|
|
ao2_callback(unsolicited_mwi, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, unsubscribe, NULL);
|
|
ao2_ref(unsolicited_mwi, -1);
|
|
unsolicited_mwi = NULL;
|
|
|
|
mwi_serializer_pool_shutdown();
|
|
|
|
ast_sip_unregister_subscription_handler(&mwi_handler);
|
|
|
|
ast_free(default_voicemail_extension);
|
|
default_voicemail_extension = NULL;
|
|
return 0;
|
|
}
|
|
|
|
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "PJSIP MWI resource",
|
|
.support_level = AST_MODULE_SUPPORT_CORE,
|
|
.load = load_module,
|
|
.unload = unload_module,
|
|
.reload = reload,
|
|
.load_pri = AST_MODPRI_CHANNEL_DEPEND + 5,
|
|
);
|