From: Harald Hoyer <harald@redhat.com>
Date: Mon, 8 Apr 2013 09:47:49 +0000 (+0800)
Subject: network: support multiple bonding interfaces
X-Git-Tag: 028~84
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d136ca4eeb3d7be2beef210dcf51a18210900844;p=thirdparty%2Fdracut.git

network: support multiple bonding interfaces

Currently dracut only support 1 bond, namyly bond0 by default. However multiple
bonds configuration may be needed. For example in kdump, in 1st kernel, more
than one bonds may be configured, and bondX other than bond0 is used as output
interface to remote host which will store dump core. This patch can solve this
problem, to write real bond information to initramfs, 2nd kdump kernel will
use it to create the relevant bondX interface.

Tested-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Baoquan He <bhe@redhat.com>
---

diff --git a/modules.d/40network/ifup.sh b/modules.d/40network/ifup.sh
index 815ab64f4..593f3879d 100755
--- a/modules.d/40network/ifup.sh
+++ b/modules.d/40network/ifup.sh
@@ -21,14 +21,18 @@ use_bridge='false'
 use_vlan='false'
 
 # enslave this interface to bond?
-if [ -e /tmp/bond.info ]; then
-    . /tmp/bond.info
+for i in /tmp/bond.*.info; do
+    [ -e "$i" ] || continue
+    unset bondslaves
+    unset bondname
+    . "$i"
     for slave in $bondslaves ; do
         if [ "$netif" = "$slave" ] ; then
             netif=$bondname
+            break 2
         fi
     done
-fi
+done
 
 if [ -e /tmp/team.info ]; then
     . /tmp/team.info
@@ -138,11 +142,12 @@ if [ "$netif" = "lo" ] ; then
 fi
 
 # start bond if needed
-if [ -e /tmp/bond.info ]; then
-    . /tmp/bond.info
+if [ -e /tmp/bond.${netif}.info ]; then
+    . /tmp/bond.${netif}.info
 
     if [ "$netif" = "$bondname" ] && [ ! -e /tmp/net.$bondname.up ] ; then # We are master bond device
         modprobe bonding
+        echo "+$netif" >  /sys/class/net/bonding_masters
         ip link set $netif down
 
         # Stolen from ifup-eth
diff --git a/modules.d/40network/net-genrules.sh b/modules.d/40network/net-genrules.sh
index f4652b904..05fa5f3bf 100755
--- a/modules.d/40network/net-genrules.sh
+++ b/modules.d/40network/net-genrules.sh
@@ -28,11 +28,14 @@ fi
     fi
 
     # bond: attempt only the defined interface (override bridge defines)
-    if [ -e /tmp/bond.info ]; then
-        . /tmp/bond.info
+    for i in /tmp/bond.*.info; do
+        [ -e "$i" ] || continue
+        unset bondslaves
+        unset bondname
+        . "$i"
         # It is enough to fire up only one
         IFACES="$IFACES ${bondslaves%% *}"
-    fi
+    done
 
     if [ -e /tmp/team.info ]; then
         . /tmp/team.info
diff --git a/modules.d/40network/parse-bond.sh b/modules.d/40network/parse-bond.sh
index 983eb3aeb..25c51b89c 100755
--- a/modules.d/40network/parse-bond.sh
+++ b/modules.d/40network/parse-bond.sh
@@ -54,8 +54,8 @@ if getarg bond >/dev/null; then
     fi
     # Make it suitable for initscripts export
     bondoptions=$(str_replace "$bondoptions" ";" ",")
-    echo "bondname=$bondname" > /tmp/bond.info
-    echo "bondslaves=\"$bondslaves\"" >> /tmp/bond.info
-    echo "bondoptions=\"$bondoptions\"" >> /tmp/bond.info
+    echo "bondname=$bondname" > /tmp/bond.${bondname}.info
+    echo "bondslaves=\"$bondslaves\"" >> /tmp/bond.${bondname}.info
+    echo "bondoptions=\"$bondoptions\"" >> /tmp/bond.${bondname}.info
     return
 fi
diff --git a/modules.d/40network/parse-bridge.sh b/modules.d/40network/parse-bridge.sh
index 1f027bb0d..8c305c0f7 100755
--- a/modules.d/40network/parse-bridge.sh
+++ b/modules.d/40network/parse-bridge.sh
@@ -37,12 +37,6 @@ parsebridge() {
 unset bridgename ethnames
 
 iface=eth0
-if [ -e /tmp/bond.info ]; then
-    . /tmp/bond.info
-    if [ -n "$bondname" ] ; then
-        iface=$bondname
-    fi
-fi
 
 # Parse bridge for bridgename and ethnames
 if bridge="$(getarg bridge)"; then
diff --git a/modules.d/45ifcfg/write-ifcfg.sh b/modules.d/45ifcfg/write-ifcfg.sh
index f7a476cd3..16da5e485 100755
--- a/modules.d/45ifcfg/write-ifcfg.sh
+++ b/modules.d/45ifcfg/write-ifcfg.sh
@@ -9,10 +9,6 @@ udevadm settle --timeout=30
 
 read IFACES < /tmp/net.ifaces
 
-if [ -e /tmp/bond.info ]; then
-    . /tmp/bond.info
-fi
-
 if [ -e /tmp/bridge.info ]; then
     . /tmp/bridge.info
 fi
@@ -89,6 +85,11 @@ for netif in $IFACES ; do
     # bridge?
     unset bridge
     unset bond
+    unset bondslaves
+    unset bondname
+    unset bondoptions
+    [ -e /tmp/bond.${netif}.info ] && . /tmp/bond.${netif}.info
+
     uuid=$(cat /proc/sys/kernel/random/uuid)
     if [ "$netif" = "$bridgename" ]; then
         bridge=yes