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Increment session version each time we send a new SDP

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@1789 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2003-11-24 19:13:32 +00:00
parent 541568fbb6
commit 55beaa4d47
1 changed files with 8 additions and 1 deletions
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9
channels/chan_sip.c
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@@ -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");