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Direct Media calls within private network sometimes get one way audio

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When endpoints with direct_media enabled, behind a firewall (Asterisk on a
separate network) and were bridged sometimes Asterisk would send the ip
address of the firewall in the sdp to one of the phones in the reinvite
resulting in one way audio. When sending the reinvite Asterisk will retrieve
the media address from the associated rtp instance, but if frames were being
read this can be overwritten with another address (in this case the
firewall's).  This patch ensures that Asterisk uses the original device
address when using direct media.

ASTERISK-24563
Reported by: Steve Pitts
Review: https://reviewboard.asterisk.org/r/4216/
........

Merged revisions 429195 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/13@429196 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin Harwell
2014-12-09 20:02:29 +00:00
parent 664067e318
commit 525c823b4b
4 changed files with 109 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
channels/chan_sip.c
View File

@@ -23062,7 +23062,7 @@ static void handle_response_invite(struct sip_pvt *p, int resp, const char *rest
} else if (!reinvite) {
struct ast_sockaddr remote_address = {{0,}};
ast_rtp_instance_get_remote_address(p->rtp, &remote_address);
ast_rtp_instance_get_requested_target_address(p->rtp, &remote_address);
if (ast_sockaddr_isnull(&remote_address) || (!ast_strlen_zero(p->theirprovtag) && strcmp(p->theirtag, p->theirprovtag))) {
ast_log(LOG_WARNING, "Received response: \"200 OK\" from '%s' without SDP\n", p->relatedpeer->name);
ast_set_flag(&p->flags[0], SIP_PENDINGBYE);
@@ -32291,7 +32291,7 @@ static int sip_allow_anyrtp_remote(struct ast_channel *chan1, struct ast_rtp_ins
if (ast_test_flag(&p->flags[0], SIP_DIRECT_MEDIA)) {
struct ast_sockaddr us = { { 0, }, }, them = { { 0, }, };
ast_rtp_instance_get_remote_address(instance, &them);
ast_rtp_instance_get_requested_target_address(instance, &them);
ast_rtp_instance_get_local_address(instance, &us);
if (ast_apply_acl(acl, &them, "SIP Direct Media ACL: ") == AST_SENSE_DENY) {