Module: sip-router Branch: kamailio_3.0 Commit: 839e2fee663846f68289a519c27aef433a872afa URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=839e2fee...

Author: Daniel-Constantin Mierla miconda@gmail.com Committer: Daniel-Constantin Mierla miconda@gmail.com Date: Thu Jan 7 11:33:37 2010 +0100

nathelper(k): fix for swap scenario

A -> RTPP -> B, offer in INVITE, answer in 200 OK (SDP in INVITE+200 OK) A -> RTPP -> B, re-Invite on session expiry, SDP in 200 OK + ACK

The from-tag and to-tag are not swapped in the ACK with rtpproxy_answer(). Options "sl" would do the trick also, but "s" is deprecated soon

Patch by Walter Schober

---

modules_k/nathelper/nathelper.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/modules_k/nathelper/nathelper.c b/modules_k/nathelper/nathelper.c index 90fca05..3e66ee4 100644 --- a/modules_k/nathelper/nathelper.c +++ b/modules_k/nathelper/nathelper.c @@ -2985,12 +2985,14 @@ force_rtp_proxy(struct sip_msg* msg, char* str1, char* str2, int offer) FORCE_RTP_PROXY_RET (-1); } create = 0; - if (swap != 0 || (msg->first_line.type == SIP_REPLY && offer != 0)) { + if (swap != 0 || (msg->first_line.type == SIP_REPLY && offer != 0) + || (msg->first_line.type == SIP_REQUEST && offer == 0)) { tmp = from_tag; from_tag = to_tag; to_tag = tmp; } - } else if (swap != 0 || (msg->first_line.type == SIP_REPLY && offer != 0)) { + } else if (swap != 0 || (msg->first_line.type == SIP_REPLY && offer != 0) + || (msg->first_line.type == SIP_REQUEST && offer == 0)) { if (to_tag.len == 0) { FORCE_RTP_PROXY_RET (-1); }