[Asterisk-code-review] chan sip: Support nat=auto comedia or nat=force rport,auto c... (asterisk[master])

[Alexander Traud]

Alexander Traud has uploaded a new change for review.

  https://gerrit.asterisk.org/4068

Change subject: chan_sip: Support nat=auto_comedia or nat=force_rport,auto_comedia.
......................................................................

chan_sip: Support nat=auto_comedia or nat=force_rport,auto_comedia.

In the SIP channel driver chan_sip, auto_comedia was expected to be used in
tandem with auto_force_rport. Or stated differently: Only when auto_force_rport
was chosen (the default), auto_comedia worked. This change allows auto_comedia
to be set independently of the state of (auto_)force_rport. For example,
nat=force_rport,auto_comedia is useful for IPv4/IPv6 Dual Stack deployments
when IPv6 clients are behind a Firewall.

ASTERISK-26457 #close

Change-Id: Ib29d66c6dbb61648e371e01fc36c6978ddae5bc2
---
M channels/chan_sip.c
1 file changed, 3 insertions(+), 2 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/68/4068/1

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 47b90d7..d8a3d5c 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -30472,9 +30472,10 @@
 	if (p->relatedpeer) {
 
 		if (!ast_strlen_zero(p->relatedpeer->fullcontact) && !p->natdetected &&
-			(ast_test_flag(&p->flags[2], SIP_PAGE3_NAT_AUTO_RPORT) && !ast_test_flag(&p->flags[0], SIP_NAT_FORCE_RPORT))) {
+		    ((ast_test_flag(&p->flags[2], SIP_PAGE3_NAT_AUTO_RPORT) && !ast_test_flag(&p->flags[0], SIP_NAT_FORCE_RPORT)) ||
+		     (ast_test_flag(&p->flags[2], SIP_PAGE3_NAT_AUTO_COMEDIA) && !ast_test_flag(&p->flags[1], SIP_PAGE2_SYMMETRICRTP)))) {
 			/* We need to make an attempt to determine if a peer is behind NAT
-			   if the peer has the auto_force_rport flag set. */
+			   if the peer has the flags auto_force_rport or auto_comedia set. */
 			struct ast_sockaddr tmpaddr;
 
 			__set_address_from_contact(p->relatedpeer->fullcontact, &tmpaddr, 0);

-- 
To view, visit https://gerrit.asterisk.org/4068
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ib29d66c6dbb61648e371e01fc36c6978ddae5bc2
Gerrit-PatchSet: 1
Gerrit-Project: asterisk
Gerrit-Branch: master
Gerrit-Owner: Alexander Traud <pabstraud at compuserve.com>