From 27172e415a0b77465018e5cff6d980dc3265fc95 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 25 Jun 2010 20:59:47 +0200
Subject: avahi-autopid: set metric for default route in action script

---
 avahi-autoipd/avahi-autoipd.action.linux | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

(limited to 'avahi-autoipd/avahi-autoipd.action.linux')

diff --git a/avahi-autoipd/avahi-autoipd.action.linux b/avahi-autoipd/avahi-autoipd.action.linux
index cc9238c..c2db994 100755
--- a/avahi-autoipd/avahi-autoipd.action.linux
+++ b/avahi-autoipd/avahi-autoipd.action.linux
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 # This file is part of avahi.
-# 
+#
 # avahi is free software; you can redistribute it and/or modify it
 # under the terms of the GNU Lesser General Public License as
 # published by the Free Software Foundation; either version 2 of the
@@ -28,17 +28,26 @@ set -e
 #   $2 interface name
 #   $3 IP adddress
 
+PATH="$PATH:/usr/bin:/usr/sbin:/bin:/sbin"
+
+# Use a different metric for each interface, so that we can set
+# identical routes to multiple interfaces.
+
+METRIC=$((1000 + `cat "/sys/class/net/$2/ifindex" 2>/dev/null || echo 0`))
+
 if [ -x /bin/ip -o -x /sbin/ip ] ; then
 
     # We have the Linux ip tool from the iproute package
 
     case "$1" in
         BIND)
-            ip addr add "$3"/16 brd 169.254.255.255 label "$2:avahi" scope link dev "$2" 
+            ip addr add "$3"/16 brd 169.254.255.255 label "$2:avahi" scope link dev "$2"
+            ip route add default dev "$2" metric "$METRIC" scope link ||:
             ;;
 
         CONFLICT|UNBIND|STOP)
-            ip addr del "$3"/16 brd 169.254.255.255 label "$2:avahi" scope link dev "$2" 
+            ip route del default dev "$2" metric "$METRIC" scope link ||:
+            ip addr del "$3"/16 brd 169.254.255.255 label "$2:avahi" scope link dev "$2"
             ;;
 
         *)
@@ -54,9 +63,11 @@ elif [ -x /bin/ifconfig -o -x /sbin/ifconfig ] ; then
     case "$1" in
         BIND)
             ifconfig "$2:avahi" inet "$3" netmask 255.255.0.0 broadcast 169.254.255.255 up
+            route add default dev "$2:avahi" metric "$METRIC" ||:
             ;;
 
         CONFLICT|STOP|UNBIND)
+            route del default dev "$2:avahi" metric "$METRIC" ||:
             ifconfig "$2:avahi" down
             ;;
 
-- 
cgit