mirror of https://github.com/asterisk/asterisk
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
148 lines
3.9 KiB
148 lines
3.9 KiB
/*
|
|
* Asterisk -- An open source telephony toolkit.
|
|
*
|
|
* Copyright (C) 2013, Digium, Inc.
|
|
*
|
|
* Joshua Colp <jcolp@digium.com>
|
|
*
|
|
* See http://www.asterisk.org for more information about
|
|
* the Asterisk project. Please do not directly contact
|
|
* any of the maintainers of this project for assistance;
|
|
* the project provides a web site, mailing lists and IRC
|
|
* channels for your use.
|
|
*
|
|
* This program is free software, distributed under the terms of
|
|
* the GNU General Public License Version 2. See the LICENSE file
|
|
* at the top of the source tree.
|
|
*/
|
|
|
|
/*** MODULEINFO
|
|
<depend>pjproject</depend>
|
|
<depend>res_pjsip</depend>
|
|
<depend>res_pjsip_session</depend>
|
|
<support_level>core</support_level>
|
|
***/
|
|
|
|
#include "asterisk.h"
|
|
|
|
#include <pjsip.h>
|
|
#include <pjsip_ua.h>
|
|
|
|
#include "asterisk/res_pjsip.h"
|
|
#include "asterisk/res_pjsip_session.h"
|
|
#include "asterisk/module.h"
|
|
#include "asterisk/causes.h"
|
|
|
|
static void rfc3326_use_reason_header(struct ast_sip_session *session, struct pjsip_rx_data *rdata)
|
|
{
|
|
const pj_str_t str_reason = { "Reason", 6 };
|
|
pjsip_generic_string_hdr *header = pjsip_msg_find_hdr_by_name(rdata->msg_info.msg, &str_reason, NULL);
|
|
char buf[20], *cause, *text;
|
|
int code;
|
|
|
|
if (!header) {
|
|
return;
|
|
}
|
|
|
|
ast_copy_pj_str(buf, &header->hvalue, sizeof(buf));
|
|
cause = ast_skip_blanks(buf);
|
|
|
|
if (strncasecmp(cause, "Q.850", 5) || !(cause = strstr(cause, "cause="))) {
|
|
return;
|
|
}
|
|
|
|
/* If text is present get rid of it */
|
|
if ((text = strstr(cause, ";"))) {
|
|
*text = '\0';
|
|
}
|
|
|
|
if (sscanf(cause, "cause=%30d", &code) != 1) {
|
|
return;
|
|
}
|
|
|
|
ast_channel_hangupcause_set(session->channel, code & 0x7f);
|
|
}
|
|
|
|
static int rfc3326_incoming_request(struct ast_sip_session *session, struct pjsip_rx_data *rdata)
|
|
{
|
|
if ((pjsip_method_cmp(&rdata->msg_info.msg->line.req.method, &pjsip_bye_method) &&
|
|
pjsip_method_cmp(&rdata->msg_info.msg->line.req.method, &pjsip_cancel_method)) ||
|
|
!session->channel) {
|
|
return 0;
|
|
}
|
|
|
|
rfc3326_use_reason_header(session, rdata);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rfc3326_incoming_response(struct ast_sip_session *session, struct pjsip_rx_data *rdata)
|
|
{
|
|
struct pjsip_status_line status = rdata->msg_info.msg->line.status;
|
|
|
|
if ((status.code < 300) || !session->channel) {
|
|
return;
|
|
}
|
|
|
|
rfc3326_use_reason_header(session, rdata);
|
|
}
|
|
|
|
static void rfc3326_add_reason_header(struct ast_sip_session *session, struct pjsip_tx_data *tdata)
|
|
{
|
|
char buf[20];
|
|
|
|
snprintf(buf, sizeof(buf), "Q.850;cause=%i", ast_channel_hangupcause(session->channel) & 0x7f);
|
|
ast_sip_add_header(tdata, "Reason", buf);
|
|
|
|
if (ast_channel_hangupcause(session->channel) == AST_CAUSE_ANSWERED_ELSEWHERE) {
|
|
ast_sip_add_header(tdata, "Reason", "SIP;cause=200;text=\"Call completed elsewhere\"");
|
|
}
|
|
}
|
|
|
|
static void rfc3326_outgoing_request(struct ast_sip_session *session, struct pjsip_tx_data *tdata)
|
|
{
|
|
if ((pjsip_method_cmp(&tdata->msg->line.req.method, &pjsip_bye_method) &&
|
|
pjsip_method_cmp(&tdata->msg->line.req.method, &pjsip_cancel_method)) ||
|
|
!session->channel) {
|
|
return;
|
|
}
|
|
|
|
rfc3326_add_reason_header(session, tdata);
|
|
}
|
|
|
|
static void rfc3326_outgoing_response(struct ast_sip_session *session, struct pjsip_tx_data *tdata)
|
|
{
|
|
struct pjsip_status_line status = tdata->msg->line.status;
|
|
|
|
if ((status.code < 300) || !session->channel) {
|
|
return;
|
|
}
|
|
|
|
rfc3326_add_reason_header(session, tdata);
|
|
}
|
|
|
|
static struct ast_sip_session_supplement rfc3326_supplement = {
|
|
.incoming_request = rfc3326_incoming_request,
|
|
.incoming_response = rfc3326_incoming_response,
|
|
.outgoing_request = rfc3326_outgoing_request,
|
|
.outgoing_response = rfc3326_outgoing_response,
|
|
};
|
|
|
|
static int load_module(void)
|
|
{
|
|
ast_sip_session_register_supplement(&rfc3326_supplement);
|
|
return AST_MODULE_LOAD_SUCCESS;
|
|
}
|
|
|
|
static int unload_module(void)
|
|
{
|
|
ast_sip_session_unregister_supplement(&rfc3326_supplement);
|
|
return 0;
|
|
}
|
|
|
|
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "PJSIP RFC3326 Support",
|
|
.load = load_module,
|
|
.unload = unload_module,
|
|
.load_pri = AST_MODPRI_APP_DEPEND,
|
|
);
|