From 0c5ccb35c7db77caf6317e1946387504b44132e5 Mon Sep 17 00:00:00 2001
From: WANG Chao <chaowang@redhat.com>
Date: Tue, 9 Apr 2013 18:56:40 +0800
Subject: [PATCH] ifup.sh: Add support for bridge over a vlan tagged interface

This patch add support for bridge a vlan tagged interface, like
br0 -> bond0.7 -> bond0 -> eth0

Signed-off-by: WANG Chao <chaowang@redhat.com>
---
 modules.d/40network/ifup.sh | 33 +++++++++++++++++++--------------
 1 file changed, 19 insertions(+), 14 deletions(-)

diff --git a/modules.d/40network/ifup.sh b/modules.d/40network/ifup.sh
index 593f387..526251f 100755
--- a/modules.d/40network/ifup.sh
+++ b/modules.d/40network/ifup.sh
@@ -43,6 +43,20 @@ if [ -e /tmp/team.info ]; then
     done
 fi
 
+if [ -e /tmp/vlan.info ]; then
+    . /tmp/vlan.info
+    if [ "$netif" = "$phydevice" ]; then
+        if [ "$netif" = "$bondname" ] && [ -n "$DO_BOND_SETUP" ] ; then
+            : # We need to really setup bond (recursive call)
+        elif [ "$netif" = "$teammaster" ] && [ -n "$DO_TEAM_SETUP" ] ; then
+            : # We need to really setup team (recursive call)
+        else
+            netif="$vlanname"
+            use_vlan='true'
+        fi
+    fi
+fi
+
 # bridge this interface?
 if [ -e /tmp/bridge.info ]; then
     . /tmp/bridge.info
@@ -52,6 +66,8 @@ if [ -e /tmp/bridge.info ]; then
                 : # We need to really setup bond (recursive call)
             elif [ "$netif" = "$teammaster" ] && [ -n "$DO_TEAM_SETUP" ] ; then
                 : # We need to really setup team (recursive call)
+            elif [ "$netif" = "$vlanname" ] && [ -n "$DO_VLAN_SETUP" ]; then
+                : # We need to really setup vlan (recursive call)
             else
                 netif="$bridgename"
                 use_bridge='true'
@@ -60,20 +76,6 @@ if [ -e /tmp/bridge.info ]; then
     done
 fi
 
-if [ -e /tmp/vlan.info ]; then
-    . /tmp/vlan.info
-    if [ "$netif" = "$phydevice" ]; then
-        if [ "$netif" = "$bondname" ] && [ -n "$DO_BOND_SETUP" ] ; then
-            : # We need to really setup bond (recursive call)
-        elif [ "$netif" = "$teammaster" ] && [ -n "$DO_TEAM_SETUP" ] ; then
-            : # We need to really setup team (recursive call)
-        else
-            netif="$vlanname"
-            use_vlan='true'
-        fi
-    fi
-fi
-
 # disable manual ifup while netroot is set for simplifying our logic
 # in netroot case we prefer netroot to bringup $netif automaticlly
 [ -n "$2" -a "$2" = "-m" ] && [ -z "$netroot" ] && manualup="$2"
@@ -223,6 +225,8 @@ if [ -e /tmp/bridge.info ]; then
                 DO_BOND_SETUP=yes ifup $bondname -m
             elif [ "$ethname" = "$teammaster" ] ; then
                 DO_TEAM_SETUP=yes ifup $teammaster -m
+            elif [ "$ethname" = "$vlanname" ]; then
+                DO_VLAN_SETUP=yes ifup $vlanname -m
             else
                 linkup $ethname
             fi
@@ -252,6 +256,7 @@ if [ "$netif" = "$vlanname" ] && [ ! -e /tmp/net.$vlanname.up ]; then
         linkup "$phydevice"
     fi
     ip link add dev "$vlanname" link "$phydevice" type vlan id "$(get_vid $vlanname)"
+    ip link set "$vlanname" up
 fi
 
 # setup nameserver