From: cjack <cjack@yandex.ru>
Date: Wed, 15 Jun 2016 22:10:11 +0000 (+0300)
Subject: chan_sip: Fix lastrtprx always updated
X-Git-Tag: 15.0.0-beta1~732^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fchanges%2F64%2F3564%2F1;p=thirdparty%2Fasterisk.git

chan_sip: Fix lastrtprx always updated

Packets are read regulary, when there is no data in buffer fr->frametype
is AST_FRAME_NULL. There was no check of frametype and lastrtprx always
updated and, therefore, rtptimeout did not work at all.

ASTERISK-25270 #close

Change-Id: If3b5ca0dbb822582a86eb7d01dcae4e83448c41d
---

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 5f422d72a3..2c44208b46 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -8595,7 +8595,9 @@ static struct ast_frame *sip_read(struct ast_channel *ast)
 
 	sip_pvt_lock(p);
 	fr = sip_rtp_read(ast, p, &faxdetected);
-	p->lastrtprx = time(NULL);
+	if (fr && fr->frametype != AST_FRAME_NULL) {
+		p->lastrtprx = time(NULL);
+	}
 
 	/* If we detect a CNG tone and fax detection is enabled then send us off to the fax extension */
 	if (faxdetected && ast_test_flag(&p->flags[1], SIP_PAGE2_FAX_DETECT_CNG)) {