735b30ad71
The general gist is to have a clear boundary between old SIP stuff and new SIP stuff by having the word "SIP" for old stuff and "PJSIP" for new stuff. Here's a brief rundown of the changes: * The word "Gulp" in dialstrings, functions, and CLI commands is now "PJSIP" * chan_gulp.c is now chan_pjsip.c * Function names in chan_gulp.c that were "gulp_*" are now "chan_pjsip_*" * All files that were "res_sip*" are now "res_pjsip*" * The "res_sip" directory is now "res_pjsip" * Files in the "res_pjsip" directory that began with "sip_*" are now "pjsip_*" * The configuration file is now "pjsip.conf" instead of "res_sip.conf" * The module info for all PJSIP-related files now uses "PJSIP" instead of "SIP" * CLI and AMI commands created by Asterisk's PJSIP modules now have "pjsip" as the starting word instead of "sip" git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@395764 65c4cc65-6c06-0410-ace0-fbb531ad65f3
148 lines
3.9 KiB
C
148 lines
3.9 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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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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.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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