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#!/bin/bash
#============================================================================
# ${XEN_SCRIPT_DIR}/vif-route
#
# Script for configuring a vif in routed mode.
#
# Usage:
# vif-route (add|remove|online|offline)
#
# Environment vars:
# dev vif interface name (required).
# XENBUS_PATH path to this device's details in the XenStore (required).
#
# Read from the store:
# ip list of IP networks for the vif, space-separated (default given in
# this script).
#============================================================================
dir=$(dirname "$0")
. "${dir}/vif-common.sh"
main_ip=$(dom0_ip)
case "${command}" in
add|online)
ifconfig ${dev} ${main_ip} netmask 255.255.255.255 up
echo 1 >/proc/sys/net/ipv4/conf/${dev}/proxy_arp
ipcmd='add'
cmdprefix=''
;;
remove|offline)
do_without_error ifdown ${dev}
ipcmd='del'
cmdprefix='do_without_error'
;;
esac
case "${type_if}" in
tap)
metric=1
;;
vif)
metric=2
;;
*)
fatal "Unrecognised interface type ${type_if}"
;;
esac
# If we've been given a list of IP addresses, then add routes from dom0 to
# the guest using those addresses.
for addr in ${ip} ; do
${cmdprefix} ip route ${ipcmd} ${addr} dev ${dev} src ${main_ip} metric ${metric}
done
handle_iptable
call_hooks vif post
log debug "Successful vif-route ${command} for ${dev}."
if [ "${command}" = "online" ]
then
success
fi
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