86a4ce4957
This enforces that res_pjsip, res_pjsip_session, and res_pjsip_pubsub have loaded properly before attempting to load any modules that depend on them since the module loader system is not currently capable of resolving module dependencies on its own. ASTERISK-24312 #close Reported by: Dafi Ni Review: https://reviewboard.asterisk.org/r/4062/ ........ Merged revisions 425690 from http://svn.asterisk.org/svn/asterisk/branches/12 ........ Merged revisions 425691 from http://svn.asterisk.org/svn/asterisk/branches/13 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@425700 65c4cc65-6c06-0410-ace0-fbb531ad65f3
151 lines
4 KiB
C
151 lines
4 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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* Joshua Colp <jcolp@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_session</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_ua.h>
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#include "asterisk/res_pjsip.h"
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#include "asterisk/res_pjsip_session.h"
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#include "asterisk/module.h"
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#include "asterisk/causes.h"
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static void rfc3326_use_reason_header(struct ast_sip_session *session, struct pjsip_rx_data *rdata)
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{
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const pj_str_t str_reason = { "Reason", 6 };
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pjsip_generic_string_hdr *header = pjsip_msg_find_hdr_by_name(rdata->msg_info.msg, &str_reason, NULL);
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char buf[20], *cause, *text;
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int code;
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if (!header) {
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return;
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}
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ast_copy_pj_str(buf, &header->hvalue, sizeof(buf));
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cause = ast_skip_blanks(buf);
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if (strncasecmp(cause, "Q.850", 5) || !(cause = strstr(cause, "cause="))) {
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return;
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}
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/* If text is present get rid of it */
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if ((text = strstr(cause, ";"))) {
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*text = '\0';
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}
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if (sscanf(cause, "cause=%30d", &code) != 1) {
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return;
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}
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ast_channel_hangupcause_set(session->channel, code & 0x7f);
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}
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static int rfc3326_incoming_request(struct ast_sip_session *session, struct pjsip_rx_data *rdata)
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{
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if ((pjsip_method_cmp(&rdata->msg_info.msg->line.req.method, &pjsip_bye_method) &&
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pjsip_method_cmp(&rdata->msg_info.msg->line.req.method, &pjsip_cancel_method)) ||
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!session->channel) {
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return 0;
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}
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rfc3326_use_reason_header(session, rdata);
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return 0;
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}
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static void rfc3326_incoming_response(struct ast_sip_session *session, struct pjsip_rx_data *rdata)
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{
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struct pjsip_status_line status = rdata->msg_info.msg->line.status;
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if ((status.code < 300) || !session->channel) {
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return;
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}
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rfc3326_use_reason_header(session, rdata);
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}
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static void rfc3326_add_reason_header(struct ast_sip_session *session, struct pjsip_tx_data *tdata)
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{
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char buf[20];
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snprintf(buf, sizeof(buf), "Q.850;cause=%i", ast_channel_hangupcause(session->channel) & 0x7f);
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ast_sip_add_header(tdata, "Reason", buf);
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if (ast_channel_hangupcause(session->channel) == AST_CAUSE_ANSWERED_ELSEWHERE) {
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ast_sip_add_header(tdata, "Reason", "SIP;cause=200;text=\"Call completed elsewhere\"");
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}
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}
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static void rfc3326_outgoing_request(struct ast_sip_session *session, struct pjsip_tx_data *tdata)
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{
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if ((pjsip_method_cmp(&tdata->msg->line.req.method, &pjsip_bye_method) &&
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pjsip_method_cmp(&tdata->msg->line.req.method, &pjsip_cancel_method)) ||
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!session->channel) {
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return;
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}
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rfc3326_add_reason_header(session, tdata);
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}
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static void rfc3326_outgoing_response(struct ast_sip_session *session, struct pjsip_tx_data *tdata)
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{
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struct pjsip_status_line status = tdata->msg->line.status;
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if ((status.code < 300) || !session->channel) {
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return;
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}
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rfc3326_add_reason_header(session, tdata);
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}
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static struct ast_sip_session_supplement rfc3326_supplement = {
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.incoming_request = rfc3326_incoming_request,
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.incoming_response = rfc3326_incoming_response,
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.outgoing_request = rfc3326_outgoing_request,
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.outgoing_response = rfc3326_outgoing_response,
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};
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static int load_module(void)
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{
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CHECK_PJSIP_SESSION_MODULE_LOADED();
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ast_sip_session_register_supplement(&rfc3326_supplement);
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return AST_MODULE_LOAD_SUCCESS;
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}
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static int unload_module(void)
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{
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ast_sip_session_unregister_supplement(&rfc3326_supplement);
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return 0;
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}
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "PJSIP RFC3326 Support",
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.support_level = AST_MODULE_SUPPORT_CORE,
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.load = load_module,
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.unload = unload_module,
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.load_pri = AST_MODPRI_APP_DEPEND,
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);
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