From e5fb7a7923f42964d31b9513773a50f72a31936a Mon Sep 17 00:00:00 2001
From: Thierry Parmentelat <thierry.parmentelat@inria.fr>
Date: Wed, 17 Apr 2013 06:25:52 +0200
Subject: [PATCH] skip bridge interface when guessing physical interface

---
 system/template-qemu/qemu-bridge-init | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/system/template-qemu/qemu-bridge-init b/system/template-qemu/qemu-bridge-init
index 399907c..d182557 100755
--- a/system/template-qemu/qemu-bridge-init
+++ b/system/template-qemu/qemu-bridge-init
@@ -17,7 +17,7 @@ set -x
 # constant
 INTERFACE_BRIDGE=br0
 
-# Default Value for INTERFACE_LAN
+#################### compute INTERFACE_LAN
 # use /proc/net/dev instead of a hard-wired list
 function gather_interfaces () {
     python <<EOF
@@ -25,23 +25,24 @@ for line in file("/proc/net/dev"):
     if ':' not in line: continue
     ifname=line.replace(" ","").split(":")[0]
     if ifname.find("lo")==0: continue
+    if ifname.find("br")==0: continue
     if ifname.find("virbr")==0: continue
     if ifname.find("tap")==0: continue
     print ifname
 EOF
 }
     
-# let's try to figure out the interface to use - try these in order
 function discover_interface () {
     for ifname in $(gather_interfaces); do
-	ip link show $ifname | grep -qi 'state UP' && { INTERFACE_LAN=$ifname; return; }
+	ip link show $ifname | grep -qi 'state UP' && { echo $ifname; return; }
     done
     # still not found ? that's bad
-    INTERFACE_LAN=unknown
+    echo unknown
 }
-discover_interface
-echo $INTERFACE_LAN
+INTERFACE_LAN=$(discover_interface)
+echo Using physical interface $INTERFACE_LAN
 
+####################
 # Fonction de mise en place du pont
 function start () {
 
-- 
2.43.0