#!/bin/bash
#********************************************
#   Copyright (c) Beijing DaoWoo Times Technology Co., Ltd. 2011
#
#   Author      : Wu XuLei (wuxulei@daowoo.com)
#   FILE        : bonding.sh
#   USAGE       : bonding.sh -h
#   DESCRIPTION : A script that will bond the network adapters.
#   REQUIREMENTS:
#                 1) The network adapters is available.
#                 2) Please run the script in the console.
#   HISTORY     :
#       09/26/2011 Wu XuLei written
#********************************************
usage()
{cat <<-END >&2
usage: ${0##*/} -i IPv4 -g IPv4-GATEWAY [ -n NETMASK ] [ -b BOND-NAME ] [ -m BOND-MODE ] [ -e ETHS ][ -I IPv6 ] [ -G IPv6-GATEWAY ] [ -r ] [ -f ] -h-i  IPv4             The local IPv4 address is a necessary option.-g  GATEWAY          Gateway is a necessary option.-n  NETMASK          The default netmask is 255.255.255.0 .-b  BOND-NAME        The default bond name is bond0.-m  BOND-MODE        The optional bond mode is 0 1 2 3 4 5 6.-e  ETHS             The network adapters will be bonded,the default is eth0 and eth1.-I  IPv6             The local IPv6 addresss.-G  IPv6-GATEWAY     The IPv6 gateway.-r                   To clear the all original network configuration.-f                   After running the script,reboot the host.-h                   Display this help and exit.eg: ${0##*/} -i 192.168.1.1 -g 192.168.31.254 -n 255.255.240.0 -b bond0 -m 6 -e "eth0 eth1 eth2"-k -I 2001:da8:3000::183 -G 2001:da8:3000::1
END
exit $E_OPTERROR
}#Defined function error
error()
{
error_num=$1
case $error_num in1)echo "You must specify -$pm parameter!" ;;2)echo "" ;;3)echo "Invalid IP address!" ;;4)echo "The cluster subnet mask is not valid. A subnet mask must be contiguous. Enter a valid subnet mask." ;;5)echo "The optional bond mode must be among 0,1,2,3,4,5 and 6." ;;6)echo "No such network adapter $eth." ;;7)echo "Name must be composed by uppercase and lowercase letters, numbers, dots and underscores, and the length of name ca
n not exceed 32 characters." ;;8)echo "The bond name $bn cat not be in network adapters $eths!" ;;9)echo "The value of -$Option parameter cat not be null!" ;;\*) usage ;;
esac
echo "Try '${0##*/} -h' for more information."
exit $error_num
}nm=255.255.255.0
bn=bond0
bm=6
eths="eth0 eth1"
f_flag=0 r_flag=0
#Parameter confirmation
while getopts "i:g:n:b:m:e:I:G:fhr" Option
do      case $Option ini)  ip=$OPTARG ;;g)  gw=$OPTARG ;;n)  nm=$OPTARG ;;b)  bn=$OPTARG ;;m)  bm=$OPTARG ;;e)  eths="$OPTARG" ;;I)  ipv6="$OPTARG" ;;G)  ipv6_gw="$OPTARG" ;;f)  f_flag=1;;h)  usage ;;r)  r_flag=1 ;;\?) usage ;;   # DEFAULTesac
done#The nummber of parameters can not be zero.
[ $# -eq 0 ] && usage
ipv4_v()
{[ $# -eq 0 ] && echo "Please input IP." && exit 1for IP in $*do[ `echo $IP|awk -v RS='.' 'END{print NR-1}'` -ne 3 ] && error 3for i in `echo $IP | awk -F "." '{print $1, $2, $3, $4}'`doecho $i|grep "^[0-9]*$" > /dev/null || error 3doneecho $IP | awk -F "." '{if($1<=223&&$1>0&&$2<=255&&$2>=0&&$3<=255&&$3>=0&&$4<=255&&$4>=1&&NF=4){exit 0}else {exi
t 1}}' || error 3done
}   nm_v()
{   [ $# -ne 1 ] && error 4IP=$1[ `echo $IP|awk -v RS='.' 'END{print NR-1}'` -eq 3 ] || error 4echo $IP | awk -F "." '{if($1<=223&&$1>0&&$2<=255&&$2>=0&&$3<=255&&$3>=0&&$4<=255&&$4>=1&&NF=4){exit 0}else {exit 1}}'IP1=`echo $IP|awk -F "." {'print $1'}`IP2=`echo $IP|awk -F "." {'print $2'}`IP3=`echo $IP|awk -F "." {'print $3'}`IP4=`echo $IP|awk -F "." {'print $4'}`num1=`echo "obase=2;$IP1"|bc|awk '{printf "%08d\n",$0}'`num2=`echo "obase=2;$IP2"|bc|awk '{printf "%08d\n",$0}'`num3=`echo "obase=2;$IP3"|bc|awk '{printf "%08d\n",$0}'`num4=`echo "obase=2;$IP4"|bc|awk '{printf "%08d\n",$0}'`num=$num1$num2$num3$num4flag1=1 flag2=1 NUM=`echo $num|wc -m`for (( i=0;i<`expr $NUM - 1`;i++ ))do if [ `echo ${num:$i:1}` -eq 1 ];then[ $flag1 -eq $flag2 ] || error 4fi[ `echo ${num:$i:1}` -eq 0 ] && flag2=0done
}
name_v()
{[ $# -ne 1 ] && error 7STRING=$1[ `echo $STRING|wc -c` -gt 32 ] && error 7if test "$(expr "${STRING}" : "[A-Za-z0-9_.]*")" -ne "$(expr length "${STRING}")" ; thenerror 7fi
}[ -z $ip ] && pm="i" && error 1
[ -z $gw ] && pm="g" && error 1
ipv4_v $ip
ipv4_v $gw
nm_v $nm
echo $bn|grep "bond[0-9]" > /dev/null || exit 1
if [ ! -z $ipv6 ];then[ ! -f ip_v.pl ] && echo "No such file ip_v.pl" && exit 1which perl > /dev/null 2>&1 || exit 1perl ip_v.pl $ipv6[ $? -ne 6 ] && error 3if [ ! -z $ipv6_gw ];thenperl ip_v.pl $ipv6_gw[ $? -ne 6 ] && error 3fi
else[ ! -z $ipv6_gw ] && echo "You must specify -I parameter!" && exit 1
fi      [ `echo $bm|wc -m` -eq 2 ] && echo $bm|grep "^[0-6]$" > /dev/null 2>&1 || error 5
for eth in $eths
do              ifconfig -a|grep $eth > /dev/null 2>&1 || error 6
done
echo "$eths"|grep $bn > /dev/null 2>&1 && error 8#To modify the modprobe.conf
cat /etc/modprobe.conf |grep "alias $bn bonding" > /dev/null 2>&1
if [ $? -eq 0 ];thensed -i "s/.*alias $bn bonding.*$/alias $bn bonding/g" /etc/modprobe.conf
elseecho "alias $bn bonding" >> /etc/modprobe.conf
fi
cat /etc/modprobe.conf |grep "options $bn" > /dev/null 2>&1
if [ $? -eq 0 ];thensed -i "s/^options $bn.*$/options $bn miimon=100 mode=$bm/g" /etc/modprobe.conf
elseecho "options $bn miimon=100 mode=$bm" >> /etc/modprobe.conf
fi
echo "/etc/modprobe.conf:"
cat /etc/modprobe.conffor i in $eths
dorm -f /etc/sysconfig/network-scripts/ifcfg-$i
done#To set bond
echo "DEVICE=$bn" > /etc/sysconfig/network-scripts/ifcfg-$bn
echo "BOOTPROTO=static" >> /etc/sysconfig/network-scripts/ifcfg-$bn
echo "ONBOOT=yes" >> /etc/sysconfig/network-scripts/ifcfg-$bn
echo "IPADDR=$ip" >> /etc/sysconfig/network-scripts/ifcfg-$bn
echo "GATEWAY=$gw" >> /etc/sysconfig/network-scripts/ifcfg-$bn
echo "NETMASK=$nm" >> /etc/sysconfig/network-scripts/ifcfg-$bn
echo "TYPE=Ethernet" >> /etc/sysconfig/network-scripts/ifcfg-$bn
#echo "USERCTL=no" >> /etc/sysconfig/network-scripts/ifcfg-$bn
if [ ! -z $ipv6 ] ;thenecho "IPV6INIT=yes" >> /etc/sysconfig/network-scripts/ifcfg-$bnecho "IPV6ADDR=$ipv6" >> /etc/sysconfig/network-scripts/ifcfg-$bnecho "IPV6PREFIX=64" >> /etc/sysconfig/network-scripts/ifcfg-$bnecho "IPV6_AUTOCONF=no" >> /etc/sysconfig/network-scripts/ifcfg-$bngrep NETWORKING_IPV6 /etc/sysconfig/network > /dev/nullif [ $? -eq 0 ];thensed -i "s/NETWORKING_IPV6=no/NETWORKING_IPV6=yes/" /etc/sysconfig/networkelseecho NETWORKING_IPV6=yes >> /etc/sysconfig/networkfi
fi
[ ! -z $ipv6_gw ] && echo "IPV6_DEFAULTGW=$ipv6%$bn" >> /etc/sysconfig/network-scripts/ifcfg-$bn
echo
echo "ifcfg-$bn:"
cat /etc/sysconfig/network-scripts/ifcfg-$bn
#To set eth
for i in $eths
doecho "DEVICE=$i" > /etc/sysconfig/network-scripts/ifcfg-$iecho "BOOTPROTO=none" >> /etc/sysconfig/network-scripts/ifcfg-$iecho "ONBOOT=yes" >> /etc/sysconfig/network-scripts/ifcfg-$iecho "MASTER=$bn" >> /etc/sysconfig/network-scripts/ifcfg-$iecho "SLAVE=yes" >> /etc/sysconfig/network-scripts/ifcfg-$iecho "TYPE=Ethernet" >> /etc/sysconfig/network-scripts/ifcfg-$i
#       echo "USERCTL=no" >> /etc/sysconfig/network-scripts/ifcfg-$iechoecho "ifcfg-$i:"cat /etc/sysconfig/network-scripts/ifcfg-$i
done#解除原有bond
if [ ! -z "`ls /sys/class/net`" ];thenfor i in `ls /sys/class/net`do[ ! -d "/sys/class/net/$i" ] || [ "$i" == lo ] || [ "$i" == sit0 ] && breakj="`cat /sys/class/net/$i/bonding/slaves 2> /dev/null`"if [ -z "$j" ] ;thenif [ `echo $i|grep bond` ]  && [ $i != $bn ];thenifdown $i downrm -f /etc/sysconfig/network-scripts/ifcfg-$ised -i "/.*alias $i bonding.*$/d" /etc/modprobe.confsed -i "/^options $i.*$/d" /etc/modprobe.confficontinuefiif [ "$i" == "$bn" ] ;thenfor k in $jdoif [ ! "`echo $eths|grep $k`" ];thenecho "DEVICE=$k" > /etc/sysconfig/network-scripts/ifcfg-$kecho "BOOTPROTO=none" >> /etc/sysconfig/network-scripts/ifcfg-$kecho "ONBOOT=no" >> /etc/sysconfig/network-scripts/ifcfg-$kecho "TYPE=Ethernet" >> /etc/sysconfig/network-scripts/ifcfg-$k#echo "USERCTL=no" >> /etc/sysconfig/network-scripts/ifcfg-$kfidoneelsefor k in $ethsdoj="`echo $j|sed "s/$k//g"`"l="`echo $j|sed "s/ //g"`"if [ -z "$l" ];thenifdown $i down rm -f /etc/sysconfig/network-scripts/ifcfg-$ised -i "/.*alias $i bonding.*$/d" /etc/modprobe.confsed -i "/^options $i.*$/d" /etc/modprobe.confbreakfidonefidone
fi                      if [ $r_flag -eq 1 ];then       for i in `ifconfig -a|grep bond|awk {'print $1'}`do  if [ $i != $bn ];thenifconfig $i downrm -f /etc/sysconfig/network-scripts/ifcfg-$ised -i "/.*alias $i bonding.*$/d" /etc/modprobe.confsed -i "/^options $i.*$/d" /etc/modprobe.conffidonefor i in `ifconfig -a|grep eth|awk {'print $1'}`doe_flag=0for j in $ethsdoif [ $i == $j ];thene_flag=1 && breakfidoneif [ $e_flag -eq 0 ];thenecho "DEVICE=$i" > /etc/sysconfig/network-scripts/ifcfg-$iecho "BOOTPROTO=none" >> /etc/sysconfig/network-scripts/ifcfg-$iecho "ONBOOT=no" >> /etc/sysconfig/network-scripts/ifcfg-$iecho "USERCTL=no" >> /etc/sysconfig/network-scripts/ifcfg-$iecho "TYPE=Ethernet" >> /etc/sysconfig/network-scripts/ifcfg-$ifiecho "ifcfg-$i:"cat /etc/sysconfig/network-scripts/ifcfg-$idone
fi                      chkconfig NetworkManager off
service NetworkManager stop
chkconfig network on
service network restartif [ $f_flag -eq 1 ] ;thenecho -e "\033[40;31mThe host will reboot.\033[0m"reboot &
else            echo -e "\033[40;31mPlease reboot the host.\033[0m"
fi
echo "The network adapters have been bonded."
exit 0