| 1 | #!/bin/bash |
|---|
| 2 | |
|---|
| 3 | |
|---|
| 4 | |
|---|
| 5 | |
|---|
| 6 | |
|---|
| 7 | #============================================================================ |
|---|
| 8 | # /etc/xen/vif-route |
|---|
| 9 | # |
|---|
| 10 | # Script for configuring a vif in routed mode. |
|---|
| 11 | # The hotplugging system will call this script if it is specified either in |
|---|
| 12 | # the device configuration given to Xend, or the default Xend configuration |
|---|
| 13 | # in /etc/xen/xend-config.sxp. If the script is specified in neither of those |
|---|
| 14 | # places, then vif-bridge is the default. |
|---|
| 15 | # |
|---|
| 16 | # Usage: |
|---|
| 17 | # vif-route (add|remove|online|offline) |
|---|
| 18 | # |
|---|
| 19 | # Environment vars: |
|---|
| 20 | # vif vif interface name (required). |
|---|
| 21 | # XENBUS_PATH path to this device's details in the XenStore (required). |
|---|
| 22 | # Read from the store: |
|---|
| 23 | # ip list of IP networks for the vif, space-separated (default given in |
|---|
| 24 | # this script). |
|---|
| 25 | # V6PREFIX prefix of v6 address to use |
|---|
| 26 | # Note that the v6 support is kind of broken because there's not really a way to populate the v6 prefix |
|---|
| 27 | # This script will set up proxy arp for any ip addresses that are being routed |
|---|
| 28 | # type read to determine if the device is ioemu |
|---|
| 29 | |
|---|
| 30 | #============================================================================ |
|---|
| 31 | |
|---|
| 32 | dir=$(dirname "$0") |
|---|
| 33 | . "$dir/vif-common.sh" |
|---|
| 34 | |
|---|
| 35 | main_ip=$(dom0_ip) |
|---|
| 36 | dev=${dev:-${vif}} |
|---|
| 37 | |
|---|
| 38 | case "$command" in |
|---|
| 39 | online) |
|---|
| 40 | ifconfig ${dev} ${main_ip} netmask 255.255.255.255 up |
|---|
| 41 | echo 1 >/proc/sys/net/ipv4/conf/${dev}/proxy_arp |
|---|
| 42 | echo 1 >/proc/sys/net/ipv4/conf/${dev}/rp_filter |
|---|
| 43 | if [ x${qemu_online} != xyes ]; then |
|---|
| 44 | ethtool -K ${dev} tx off |
|---|
| 45 | fi |
|---|
| 46 | ipcmd='add' |
|---|
| 47 | cmdprefix='' |
|---|
| 48 | ;; |
|---|
| 49 | offline) |
|---|
| 50 | do_without_error ifdown ${vif} |
|---|
| 51 | if [ -f /var/run/radvd/radvd.pid.${vif} ] ; then |
|---|
| 52 | do_without_error kill `cat /var/run/radvd/radvd.pid.${vif}` |
|---|
| 53 | fi |
|---|
| 54 | ipcmd='del' |
|---|
| 55 | cmdprefix='do_without_error' |
|---|
| 56 | ;; |
|---|
| 57 | esac |
|---|
| 58 | |
|---|
| 59 | v6prefix=${v6prefix:-} |
|---|
| 60 | v6prefix=$(xenstore_read_default "$XENBUS_PATH/v6prefix" "$v6prefix") |
|---|
| 61 | vif_type=$(xenstore_read_default "$XENBUS_PATH/type" "viffront") |
|---|
| 62 | if [ ${vif_type} != "ioemu" -o x${qemu_online} = xyes ] ; then |
|---|
| 63 | if [ "${ip}" ] ; then |
|---|
| 64 | # If we've been given a list of IP addresses, then add routes from dom0 to |
|---|
| 65 | # the guest using those addresses. |
|---|
| 66 | for addr in ${ip} ; do |
|---|
| 67 | ${cmdprefix} ip route ${ipcmd} ${addr} dev ${dev} src ${main_ip} |
|---|
| 68 | arpspoof -i eth2 -t 18.181.0.1 ${addr}& |
|---|
| 69 | sleep 5 |
|---|
| 70 | kill %arpspoof |
|---|
| 71 | done |
|---|
| 72 | fi |
|---|
| 73 | |
|---|
| 74 | if [ x${v6prefix} != x ] ; then |
|---|
| 75 | sed -e "s/@interface@/${dev}/" -e "s+@prefix@+${v6prefix}+" /etc/xen/radvd.conf.template >/var/run/radvd.conf.${vif} |
|---|
| 76 | ${cmdprefix} ip -6 addr ${ipcmd} fe80::/64 scope link dev ${dev} |
|---|
| 77 | if [ $1 = online ] ; then |
|---|
| 78 | radvd -u radvd -C /var/run/radvd.conf.${vif} -p /var/run/radvd/radvd.pid.${vif} |
|---|
| 79 | fi |
|---|
| 80 | ${cmdprefix} ip -6 route ${ipcmd} ${v6prefix} dev ${dev} |
|---|
| 81 | fi |
|---|
| 82 | fi |
|---|
| 83 | |
|---|
| 84 | handle_iptable |
|---|
| 85 | |
|---|
| 86 | log debug "Successful vif-route $command for $vif." |
|---|
| 87 | if [ "$command" == "online" ] |
|---|
| 88 | then |
|---|
| 89 | success |
|---|
| 90 | fi |
|---|
