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1a4691b204
This patch adds a function to clean up duplicate config info on Ubuntu. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
212 lines
4.5 KiB
Bash
Executable File
212 lines
4.5 KiB
Bash
Executable File
#!/bin/bash
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# This example script creates bonding network devices based on synthetic NIC
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# (the virtual network adapter usually provided by Hyper-V) and the matching
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# VF NIC (SRIOV virtual function). So the synthetic NIC and VF NIC can
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# function as one network device, and fail over to the synthetic NIC if VF is
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# down.
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#
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# Usage:
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# - After configured vSwitch and vNIC with SRIOV, start Linux virtual
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# machine (VM)
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# - Run this scripts on the VM. It will create configuration files in
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# distro specific directory.
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# - Reboot the VM, so that the bonding config are enabled.
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#
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# The config files are DHCP by default. You may edit them if you need to change
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# to Static IP or change other settings.
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#
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sysdir=/sys/class/net
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netvsc_cls={f8615163-df3e-46c5-913f-f2d2f965ed0e}
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bondcnt=0
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# Detect Distro
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if [ -f /etc/redhat-release ];
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then
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cfgdir=/etc/sysconfig/network-scripts
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distro=redhat
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elif grep -q 'Ubuntu' /etc/issue
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then
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cfgdir=/etc/network
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distro=ubuntu
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elif grep -q 'SUSE' /etc/issue
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then
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cfgdir=/etc/sysconfig/network
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distro=suse
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else
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echo "Unsupported Distro"
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exit 1
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fi
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echo Detected Distro: $distro, or compatible
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# Get a list of ethernet names
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list_eth=(`cd $sysdir && ls -d */ | cut -d/ -f1 | grep -v bond`)
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eth_cnt=${#list_eth[@]}
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echo List of net devices:
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# Get the MAC addresses
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for (( i=0; i < $eth_cnt; i++ ))
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do
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list_mac[$i]=`cat $sysdir/${list_eth[$i]}/address`
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echo ${list_eth[$i]}, ${list_mac[$i]}
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done
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# Find NIC with matching MAC
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for (( i=0; i < $eth_cnt-1; i++ ))
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do
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for (( j=i+1; j < $eth_cnt; j++ ))
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do
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if [ "${list_mac[$i]}" = "${list_mac[$j]}" ]
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then
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list_match[$i]=${list_eth[$j]}
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break
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fi
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done
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done
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function create_eth_cfg_redhat {
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local fn=$cfgdir/ifcfg-$1
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rm -f $fn
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echo DEVICE=$1 >>$fn
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echo TYPE=Ethernet >>$fn
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echo BOOTPROTO=none >>$fn
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echo UUID=`uuidgen` >>$fn
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echo ONBOOT=yes >>$fn
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echo PEERDNS=yes >>$fn
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echo IPV6INIT=yes >>$fn
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echo MASTER=$2 >>$fn
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echo SLAVE=yes >>$fn
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}
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function create_eth_cfg_pri_redhat {
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create_eth_cfg_redhat $1 $2
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}
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function create_bond_cfg_redhat {
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local fn=$cfgdir/ifcfg-$1
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rm -f $fn
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echo DEVICE=$1 >>$fn
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echo TYPE=Bond >>$fn
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echo BOOTPROTO=dhcp >>$fn
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echo UUID=`uuidgen` >>$fn
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echo ONBOOT=yes >>$fn
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echo PEERDNS=yes >>$fn
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echo IPV6INIT=yes >>$fn
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echo BONDING_MASTER=yes >>$fn
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echo BONDING_OPTS=\"mode=active-backup miimon=100 primary=$2\" >>$fn
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}
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function del_eth_cfg_ubuntu {
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local fn=$cfgdir/interfaces
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local tmpfl=$(mktemp)
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local nic_start='^[ \t]*(auto|iface|mapping|allow-.*)[ \t]+'$1
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local nic_end='^[ \t]*(auto|iface|mapping|allow-.*|source)'
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awk "/$nic_end/{x=0} x{next} /$nic_start/{x=1;next} 1" $fn >$tmpfl
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cp $tmpfl $fn
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rm $tmpfl
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}
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function create_eth_cfg_ubuntu {
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local fn=$cfgdir/interfaces
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del_eth_cfg_ubuntu $1
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echo $'\n'auto $1 >>$fn
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echo iface $1 inet manual >>$fn
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echo bond-master $2 >>$fn
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}
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function create_eth_cfg_pri_ubuntu {
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local fn=$cfgdir/interfaces
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create_eth_cfg_ubuntu $1 $2
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echo bond-primary $1 >>$fn
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}
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function create_bond_cfg_ubuntu {
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local fn=$cfgdir/interfaces
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del_eth_cfg_ubuntu $1
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echo $'\n'auto $1 >>$fn
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echo iface $1 inet dhcp >>$fn
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echo bond-mode active-backup >>$fn
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echo bond-miimon 100 >>$fn
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echo bond-slaves none >>$fn
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}
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function create_eth_cfg_suse {
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local fn=$cfgdir/ifcfg-$1
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rm -f $fn
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echo BOOTPROTO=none >>$fn
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echo STARTMODE=auto >>$fn
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}
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function create_eth_cfg_pri_suse {
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create_eth_cfg_suse $1
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}
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function create_bond_cfg_suse {
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local fn=$cfgdir/ifcfg-$1
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rm -f $fn
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echo BOOTPROTO=dhcp >>$fn
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echo STARTMODE=auto >>$fn
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echo BONDING_MASTER=yes >>$fn
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echo BONDING_SLAVE_0=$2 >>$fn
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echo BONDING_SLAVE_1=$3 >>$fn
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echo BONDING_MODULE_OPTS=\'mode=active-backup miimon=100 primary=$2\' >>$fn
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}
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function create_bond {
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local bondname=bond$bondcnt
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local primary
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local secondary
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local class_id1=`cat $sysdir/$1/device/class_id 2>/dev/null`
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local class_id2=`cat $sysdir/$2/device/class_id 2>/dev/null`
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if [ "$class_id1" = "$netvsc_cls" ]
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then
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primary=$2
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secondary=$1
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elif [ "$class_id2" = "$netvsc_cls" ]
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then
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primary=$1
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secondary=$2
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else
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return 0
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fi
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echo $'\nBond name:' $bondname
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echo configuring $primary
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create_eth_cfg_pri_$distro $primary $bondname
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echo configuring $secondary
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create_eth_cfg_$distro $secondary $bondname
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echo creating: $bondname with primary slave: $primary
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create_bond_cfg_$distro $bondname $primary $secondary
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let bondcnt=bondcnt+1
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}
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for (( i=0; i < $eth_cnt-1; i++ ))
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do
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if [ -n "${list_match[$i]}" ]
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then
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create_bond ${list_eth[$i]} ${list_match[$i]}
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fi
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done
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