From be13c72142d9bf8a7a22308ad2e4142c819775af Mon Sep 17 00:00:00 2001
From: Matthew Jordan <mjordan@digium.com>
Date: Wed, 8 Apr 2015 11:53:16 +0000
Subject: [PATCH] chan_sip: Handle IPv4 mapped IPv6 clients when NAT is enabled
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When udpbindaddr is set to the IPv6 bind all address of '::', Asterisk will
attempt to handle both IPv4 and IPv6 addresses, although the information will
be stored in a struct with an AF_INET6 address type. However, the current
NAT handling code won't handle the IPv4 mapped IPv6 addresses correctly.
This patch adds an additional check for the mapped address case, allowing
the NAT code to handle clients even when the address is IPv6.
Review: https://reviewboard.asterisk.org/r/4563/
ASTERISK-18032 #close
Reported by: Christoph Timm
patches:
nat_with_ipv6.diff submitted by Valentin Vidić (License 6697)
........
Merged revisions 434288 from http://svn.asterisk.org/svn/asterisk/branches/11
git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/13@434289 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
channels/chan_sip.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index b891eef7c1..fa577b887c 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -3773,7 +3773,7 @@ static void ast_sip_ouraddrfor(const struct ast_sockaddr *them, struct ast_socka
ast_ouraddrfor(them, us);
ast_sockaddr_copy(&theirs, them);
- if (ast_sockaddr_is_ipv6(&theirs)) {
+ if (ast_sockaddr_is_ipv6(&theirs) && !ast_sockaddr_is_ipv4_mapped(&theirs)) {
if (localaddr && !ast_sockaddr_isnull(&externaddr) && !ast_sockaddr_is_any(&bindaddr)) {
ast_log(LOG_WARNING, "Address remapping activated in sip.conf "
"but we're using IPv6, which doesn't need it. Please "
--
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