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openSUSE:12.2
xen
xen-updown.sh
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File xen-updown.sh of Package xen
#!/bin/bash # usage () { echo $@ echo "usage: $0 [<config>] <interface> [-o <options>]" echo "" echo "Options are:" echo " debug : be verbose" echo " rc : indicates that we are called from rcnetwork" echo "" echo "Any another options are ignored" exit $R_USAGE } xm_cmd="xm" pidof -x /usr/sbin/xend >/dev/null 2>&1 || xm_cmd="xl" ###################################################################### # change the working direcory and source some common files # R_INTERNAL=1 # internal error, e.g. no config or missing scripts cd /etc/sysconfig/network || exit $R_INTERNAL test -f ./config && . ./config test -f scripts/functions && . scripts/functions || exit $R_INTERNAL ###################################################################### # check arguments and how we are called (in case of links) # SCRIPTNAME=${0} debug $* case $1 in ""|-h|*help*) usage ;; esac CONFIG="$1" shift if [ "x$1" != x -a "x$1" != "x-o" ] ; then INTERFACE="$1" else INTERFACE="$CONFIG" fi shift test "x$1" = "x-o" && shift DEBUG=no RUN_FROM_RC=no while [ $# -gt 0 ]; do case $1 in debug) DEBUG=yes ;; rc) RUN_FROM_RC=yes ;; *) debug unknown option $1 ;; esac shift done # usage: ifprint <err_mesg|mesg|...> message.... ifprint() { func=$1 ; shift test "x$func" = x && return 1 if [ "$RUN_FROM_RC" = yes -a "$INTERFACE" != all ] ; then $func "`printf " %-9s " "$INTERFACE"`$*" else $func "$*" fi } # # xen related code # # check if xen is running is_xend_running() { test -x /etc/init.d/xend && \ /etc/init.d/xend status &>/dev/null && return 0 return 1 } exit_if_xend_not_running() { is_xend_running || { debug "$0: xend is not running - nothing to do" exit 0 } } # (modified) functions from /etc/init.d/xendomains parseln() { name=${1:0:$((${#1}-36))} name=${name%% *} rest="${1: -36}" id=${rest:0:4} id=`echo $id` mem=${rest:4:6} mem=`echo $mem` vcpu=${rest:10:6} vcpu=`echo $vcpu` state=${rest:16:11} state=`echo $state` tm=${rest:27} tm=`echo $tm` } xm_list() { TERM=vt100 ${xm_cmd} list | grep -v '^Name *ID' } # For the specified vm, return a list of vifs that are connected to $INTERFACE list_vifs() { id=$1 vifs=() for vif in $(ls -1 "/sys/class/net/$INTERFACE/brif/" 2>/dev/null) ; do eval BRIDGE_PORTS="" `grep "^[[:space:]]*BRIDGE_PORTS=" \ "/etc/sysconfig/network/ifcfg-$INTERFACE" 2>/dev/null` for p in $BRIDGE_PORTS ; do test "x$p" = "x$vif" && continue 2 done case $vif in (tap${id}\.*|vif${id}\.*) vifs=(${vifs[@]} ${vif}) ;; esac done echo "${vifs[@]}" } # Write list of concerned vifs to state file save_sysconfig_state() { [ -d "${RUN_FILES_BASE}/xen/" ] || \ mkdir -p "${RUN_FILES_BASE}/xen/" || return 1 rm -f "${RUN_FILES_BASE}/xen/$INTERFACE" && { echo "VIFS='${vifs[@]}'" } > "${RUN_FILES_BASE}/xen/$INTERFACE" } case $SCRIPTNAME in *if-up.d*) exit_if_xend_not_running if test -f "${RUN_FILES_BASE}/xen/$INTERFACE" ; then . "${RUN_FILES_BASE}/xen/$INTERFACE" for vif in ${VIFS}; do test -d "/sys/class/net/${vif}" || continue test -d "/sys/class/net/${INTERFACE}/brif/${vif}" && \ continue if ! is_iface_up ${vif} ; then ip link set dev ${vif} up || continue fi brctl addif ${INTERFACE} ${vif} &>/dev/null done # remove sysconfig state rm -f "${RUN_FILES_BASE}/xen/$INTERFACE" fi ;; *if-down.d*) exit_if_xend_not_running test -d "/sys/class/net/$INTERFACE/brif/" || exit 0 # Remember vifs attached to $INTERFACE vifs=() num=0 while read LN; do parseln "$LN" [ "$id" = 0 ] && continue [ -z "$state" ] && continue vifs=(${vifs[@]} $(list_vifs $id)) done < <(xm_list) [ -z "${vifs[*]}" ] || save_sysconfig_state ;; *) usage ;; esac
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