From 55beaa4d47809497f1720076a76f31ea3d50f172 Mon Sep 17 00:00:00 2001
From: Mark Spencer <markster@digium.com>
Date: Mon, 24 Nov 2003 19:13:32 +0000
Subject: [PATCH] Increment session version each time we send a new SDP
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@1789 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
channels/chan_sip.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index d160944930..4daa51fd68 100755
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -202,6 +202,8 @@ static struct sip_pvt {
int progress; /* Have sent 183 message progress */
int tag; /* Another random number */
int nat; /* Whether to try to support NAT */
+ int sessionid; /* SDP Session ID */
+ int sessionversion; /* SDP Session Version */
struct sockaddr_in sa; /* Our peer */
struct sockaddr_in redirip; /* Where our RTP should be going if not to us */
struct sockaddr_in vredirip; /* Where our Video RTP should be going if not to us */
@@ -2446,6 +2448,11 @@ static int add_sdp(struct sip_request *resp, struct sip_pvt *p, struct ast_rtp *
ast_log(LOG_WARNING, "No way to add SDP without an RTP structure\n");
return -1;
}
+ if (!p->sessionid) {
+ p->sessionid = getpid();
+ p->sessionversion = p->sessionid;
+ } else
+ p->sessionversion++;
ast_rtp_get_us(p->rtp, &sin);
if (p->vrtp)
ast_rtp_get_us(p->vrtp, &vsin);
@@ -2477,7 +2484,7 @@ static int add_sdp(struct sip_request *resp, struct sip_pvt *p, struct ast_rtp *
if (sipdebug && p->vrtp)
ast_verbose("Video is at %s port %d\n", inet_ntoa(p->ourip), ntohs(vsin.sin_port));
snprintf(v, sizeof(v), "v=0\r\n");
- snprintf(o, sizeof(o), "o=root %d %d IN IP4 %s\r\n", getpid(), getpid(), inet_ntoa(dest.sin_addr));
+ snprintf(o, sizeof(o), "o=root %d %d IN IP4 %s\r\n", p->sessionid, p->sessionversion, inet_ntoa(dest.sin_addr));
snprintf(s, sizeof(s), "s=session\r\n");
snprintf(c, sizeof(c), "c=IN IP4 %s\r\n", inet_ntoa(dest.sin_addr));
snprintf(t, sizeof(t), "t=0 0\r\n");
--
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