Attachment 3497 Details for Bug 23514

modified initscript

univention-virtual-machine-manager-node-vlan (text/plain), 5.31 KB, created by Tim Petersen on 2011-09-05 14:39 CEST

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Creator: Tim Petersen

Created: 2011-09-05 14:39 CEST

Size: 5.31 KB

patch

obsolete

>#!/bin/sh
># Univention Virtual Machine Manager KVM Node
>#  VLAN init script
>#
># Most parts of this script are taken from the xen bridging scripts.
># Details to the copyright can be found under
># /usr/share/doc/univention-virtual-machine-manager-node-kvm/copyright
>
>### BEGIN INIT INFO
># Provides:          univention-virtual-machine-manager-node-vlan
># Required-Start:    $network $local_fs univention-virtual-machine-manager-node-kvm
># Required-Stop:
># Should-Start:      $named
># Should-Stop:
># Default-Start:     2 3 4 5
># Default-Stop:      0 1 6
># Short-Description: Univention Virtual Machine Manager VLAN initialisation
># Description:       Create a bridging network interface on secondary and VLAN Interfaces
>### END INIT INFO
>
># Usage: setup_bridge_port device
># Configure interfaces which act as pure bridge ports:
>setup_bridge_port() {
>    local dev="$1"
>
>    # take interface down ...
>    ip link set ${dev} down
>
>    # ... and configure it
>    ip addr flush ${dev}
>}
>
># Usage: create_bridge bridge
># Create named bridge
>create_bridge () {
>    local bridge=$1
>
>    # Don't create the bridge if it already exists.
>    if [ ! -e "/sys/class/net/${bridge}/bridge" ]; then
>	brctl addbr ${bridge}
>	brctl stp ${bridge} off
>	brctl setfd ${bridge} 0
>    fi
>}
>
># Usage: add_to_bridge bridge device
># Add device to existing bridge
>add_to_bridge () {
>    local bridge=$1
>    local dev=$2
>
>    # Don't add $dev to $bridge if it's already on a bridge.
>    if [ -e "/sys/class/net/${bridge}/brif/${dev}" ]; then
>	ip link set ${dev} up || true
>	return
>    fi
>    brctl addif ${bridge} ${dev}
>    ip link set ${dev} up
>}
>
># Usage: link_exists dev
># Returns 0 if the interface named exists (whether up or down), 1 otherwise.
>#
>link_exists()
>{
>    local dev=$1
>    if ip link show "${dev}" >/dev/null 2>/dev/null
>    then
>        return 0
>    else
>        return 1
>    fi
>}
>
># Usage: add_to_bridge2 bridge device
># adds device to bridge but waits for device to be in running state first
>add_to_bridge2() {
>    local bridge=$1
>    local dev=$2
>    local maxtries=10
>
>    echo -n "Waiting for ${dev} to negotiate link."
>    ip link set ${dev} up
>    for i in `seq ${maxtries}` ; do
>	if ifconfig ${dev} | grep -q RUNNING ; then
>	    break
>	else
>	    echo -n '.'
>	    sleep 1
>	fi
>    done
>
>    if [ ${i} -eq ${maxtries} ] ; then echo -n '(link isnt in running state)' ; fi
>    echo
>
>    add_to_bridge ${bridge} ${dev}
>}
>
># Usage: load_mod_8021q
># Check for kernel module 8021q and load if not loaded
>load_mod_8021q () {
>    if ! lsmod | grep -q '8021q' ; then
>       if ! modprobe 8021q ; then 
>          return 1;
>       fi
>    fi
>    return 0;
>}
>
># Usage: show_status
># Print bridges and routes.
>show_status () {
>
>    echo '============================================================'
>    echo ' '
>    brctl show 
>    echo ' '
>    ip route list
>    echo ' '
>    route -n
>    echo '============================================================'
>}
>
>######################################################################
>#
># Start-Stop-Routines.
>#
>
>op_start () {
>    local dev=$1
>    local vlan=$2
>    local bridge=lan${vlan}
>
>    if [ $vlan -le 1 ] ; then
>       # special case: vlan1 = network interface (untagged)
>       local iface=$dev
>    else
>       # normal case: vlan > 1; extra interface
>    
>       # test for 802.1q
>       if ! load_mod_8021q ; then
>          # could not load module
>          [ -x /usr/bin/logger ] && /usr/bin/logger "univention-virtual-machine-manager-node-vlan: could not load module 802.1q; not started"
>          exit
>       fi
>
>       # set vlan-name-type
>       vconfig set_name_type VLAN_PLUS_VID
>
>       # create vlan if not existing
>       if ! grep "${dev}" /proc/net/vlan/config | egrep -q "| +${vlan} +|" ; then
>          vconfig add ${dev} ${vlan}
>       fi
>       local iface=`grep "${dev}" /proc/net/vlan/config | egrep "| +${vlan} +|" | cut -d ' ' -f 1`
>    fi
>
>    # create bridge and add interface
>    create_bridge $bridge
>    add_to_bridge $bridge $iface
>
>    if [ ${antispoof} = 'yes' ] ; then
>	antispoofing ${dev}
>    fi
>    # finally, set bridge up
>    ip link set $bridge up
>}
>
>op_stop () {
>    local dev=$1
>    local vlan=$2
>    local bridge=lan${vlan}
> 
>    if ! link_exists "$bridge"; then
>	return
>    fi
>
>    if [ $vlan -le 1 ] ; then
>       # special case: vlan1 = network interface (untagged)
>       local iface=$dev
>    else
>       # normal case: vlan > 1; extra interface
>       local iface=`grep "${dev}" /proc/net/vlan/config | egrep "| +${vlan} +|" | cut -d ' ' -f 1`
>    fi
>
>    brctl delif ${bridge} ${iface}
>    brctl delbr ${bridge}
>}
>
>######################################################################################
>#
>#  This is where all the things start
>#
>
>command=$1
>case "$command" in
>    start)
>        # check ucr autostart setting
>        if [ -f "/usr/share/univention-config-registry/init-autostart.lib" ]; then
>            source "/usr/share/univention-config-registry/init-autostart.lib"
>            check_autostart univention-virtual-machine-manager-node-kvm uvmm/kvm/bridge/autostart
>        fi
>
>        antispoof=${antispoof:-no}   # set iptables to forward to the bridge?
>	    op_start eth1 1
>        op_start eth1 1720
>        ;;
>    stop)
>	    op_stop eth1 1
>        op_stop eth1 1720
>	    ;;
>    status)
>	    show_status 
>	    ;;
>    *)
>	    echo "Unknown command: $command" >&2
>	    echo 'Valid commands are: start, stop, status' >&2
>	    exit 1
>esac

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Attachments on bug 23514: 3497