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From d136ca4eeb3d7be2beef210dcf51a18210900844 Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Mon, 8 Apr 2013 17:47:49 +0800
Subject: [PATCH] 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>
---
modules.d/40network/ifup.sh | 15 ++++++++++-----
modules.d/40network/net-genrules.sh | 9 ++++++---
modules.d/40network/parse-bond.sh | 6 +++---
modules.d/40network/parse-bridge.sh | 6 ------
modules.d/45ifcfg/write-ifcfg.sh | 9 +++++----
5 files changed, 24 insertions(+), 21 deletions(-)
diff --git a/modules.d/40network/ifup.sh b/modules.d/40network/ifup.sh
index 815ab64..593f387 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 $netif down
# Stolen from ifup-eth
diff --git a/modules.d/40network/net-genrules.sh b/modules.d/40network/net-genrules.sh
index f4652b9..05fa5f3 100755
--- a/modules.d/40network/net-genrules.sh
+++ b/modules.d/40network/net-genrules.sh
@@ -28,11 +28,14 @@ fi
fi
# bond: attempt only the defined interface (override bridge defines)
- if [ -e /tmp/bond.info ]; then
- . /tmp/bond.info
+ for i in /tmp/bond.*.info; do
+ [ -e "$i" ] || continue
+ unset bondslaves
+ unset bondname
+ . "$i"
# It is enough to fire up only one
IFACES="$IFACES ${bondslaves%% *}"
- fi
+ done
if [ -e /tmp/team.info ]; then
. /tmp/team.info
diff --git a/modules.d/40network/parse-bond.sh b/modules.d/40network/parse-bond.sh
index 983eb3a..25c51b8 100755
--- a/modules.d/40network/parse-bond.sh
+++ b/modules.d/40network/parse-bond.sh
@@ -54,8 +54,8 @@ if getarg bond >/dev/null; then
fi
# Make it suitable for initscripts export
bondoptions=$(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 1f027bb..8c305c0 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 f7a476c..16da5e4 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
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