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From 50d75a50fbebf96fe2937352aa2ea10e467b7ebd Mon Sep 17 00:00:00 2001
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From: Imran Haider <imran1008@gmail.com>
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Date: Mon, 16 May 2016 00:14:58 -0400
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Subject: [PATCH] add 'mtu' parameter for bond options
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Signed-off-by: Imran Haider <imran1008@gmail.com>
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Cherry-picked from: 292548be6ec8e701dab1a532ca072707e890b12e
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Resolves: #1494265
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---
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modules.d/40network/ifup.sh | 3 +++
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modules.d/40network/parse-bond.sh | 9 +++++++--
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2 files changed, 10 insertions(+), 2 deletions(-)
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diff --git a/modules.d/40network/ifup.sh b/modules.d/40network/ifup.sh
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index f2b5894d..38c7b709 100755
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--- a/modules.d/40network/ifup.sh
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+++ b/modules.d/40network/ifup.sh
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@@ -249,6 +249,9 @@ if [ -z "$NO_BOND_MASTER" ]; then
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linkup $slave
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done
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+ # Set mtu on bond master
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+ [ -n "$bondmtu" ] && ip link set mtu $bondmtu dev $netif
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+
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# add the bits to setup the needed post enslavement parameters
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for arg in $bondoptions ; do
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key=${arg%%=*};
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diff --git a/modules.d/40network/parse-bond.sh b/modules.d/40network/parse-bond.sh
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index 80b3b077..48e548b9 100755
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--- a/modules.d/40network/parse-bond.sh
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+++ b/modules.d/40network/parse-bond.sh
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@@ -1,7 +1,7 @@
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#!/bin/sh
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#
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# Format:
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-# bond=<bondname>[:<bondslaves>:[:<options>]]
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+# bond=<bondname>[:<bondslaves>:[:<options>[:<mtu>]]]
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#
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# bondslaves is a comma-separated list of physical (ethernet) interfaces
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# options is a comma-separated list on bonding options (modinfo bonding for details) in format compatible with initscripts
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@@ -9,6 +9,8 @@
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#
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# bond without parameters assumes bond=bond0:eth0,eth1:mode=balance-rr
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#
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+# if the mtu is specified, it will be set on the bond master
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+#
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# We translate list of slaves to space-separated here to mwke it easier to loop over them in ifup
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# Ditto for bonding options
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@@ -25,15 +27,17 @@ parsebond() {
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1) bondname=$1; bondslaves="eth0 eth1" ;;
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2) bondname=$1; bondslaves=$(str_replace "$2" "," " ") ;;
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3) bondname=$1; bondslaves=$(str_replace "$2" "," " "); bondoptions=$(str_replace "$3" "," " ") ;;
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+ 4) bondname=$1; bondslaves=$(str_replace "$2" "," " "); bondoptions=$(str_replace "$3" "," " "); bondmtu=$4;;
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*) die "bond= requires zero to four parameters" ;;
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esac
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}
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-# Parse bond for bondname, bondslaves, bondmode and bondoptions
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+# Parse bond for bondname, bondslaves, bondmode, bondoptions and bondmtu
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for bond in $(getargs bond=); do
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unset bondname
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unset bondslaves
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unset bondoptions
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+ unset bondmtu
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if [ "$bond" != "bond" ]; then
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parsebond "$bond"
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fi
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@@ -47,4 +51,5 @@ for bond in $(getargs bond=); do
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echo "bondname=$bondname" > /tmp/bond.${bondname}.info
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echo "bondslaves=\"$bondslaves\"" >> /tmp/bond.${bondname}.info
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echo "bondoptions=\"$bondoptions\"" >> /tmp/bond.${bondname}.info
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+ echo "bondmtu=\"$bondmtu\"" >> /tmp/bond.${bondname}.info
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done
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