packages/net/mdnsresponder/patches/100-Binding-IPv6-sockets-to-interface-due-to-link-local.patch
cyrus c9f2e1e4d1 mdnsresponder: fix binding-patch
git-svn-id: svn://svn.openwrt.org/openwrt/packages@39934 3c298f89-4303-0410-b956-a3cf2f4a3e73
2014-03-17 14:16:22 +00:00

33 lines
1.1 KiB
Diff

From 094714725481da5cfbeaa9e4c713633f3fd0dcc4 Mon Sep 17 00:00:00 2001
From: Markus Stenberg <markus.stenberg@iki.fi>
Date: Wed, 19 Feb 2014 19:21:40 +0200
Subject: mdnsresponder: [PATCH] Binding IPv6 sockets to interface
Due to link-local addresses, otherwise responses may wind up in wrong
places and mdnsd is quite confused.
---
.../patches/003-ipv6-bind-to-interface.patch | 22 ++++++++++++++++++++
1 file changed, 22 insertions(+)
--- mDNSResponder-544.source/mDNSPosix/mDNSPosix.c 2013-12-14 22:54:24.000000000 +0200
+++ mDNSResponder-544/mDNSPosix/mDNSPosix.c 2014-02-19 18:59:55.000000000 +0200
@@ -784,6 +784,17 @@
if (err < 0) { err = errno; perror("setsockopt - IPV6_MULTICAST_HOPS"); }
}
+#ifdef __linux__
+#ifdef SO_BINDTODEVICE
+ if (err == 0)
+ {
+ char ifname[IFNAMSIZ];
+ if (if_indextoname(interfaceIndex, ifname))
+ err = setsockopt(*sktPtr, SOL_SOCKET, SO_BINDTODEVICE, ifname, strlen(ifname));
+ }
+#endif /* SO_BINDTODEVICE */
+#endif /* __linux__ */
+
// And start listening for packets
if (err == 0)
{