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vm/network: use metric to allow multiple routes to same VM

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This is required when VM has multiple interfaces (eg HVM: PV and stubdom).
Prefer the later one.
This commit is contained in:
Marek Marczykowski 2012-03-08 14:57:10 +01:00
parent a06c8c3786
commit 05db5c9f92
1 changed files with 8 additions and 2 deletions
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10
network/vif-route-qubes
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@ -29,7 +29,7 @@ case "$command" in
online) online)
ifconfig ${vif} up ifconfig ${vif} up
echo 1 >/proc/sys/net/ipv4/conf/${vif}/proxy_arp echo 1 >/proc/sys/net/ipv4/conf/${vif}/proxy_arp
ipcmd='replace' ipcmd='add'
iptables_cmd='-I PREROUTING 1' iptables_cmd='-I PREROUTING 1'
cmdprefix='' cmdprefix=''
;; ;;
@ -41,11 +41,17 @@ case "$command" in
;; ;;
esac esac
domid=${vif/vif/}
domid=${domid/.*/}
# metric must be possitive, but prefer later interface
# 32752 is max XID aka domid
metric=$[ 32752 - $domid ]
if [ "${ip}" ] ; then if [ "${ip}" ] ; then
# If we've been given a list of IP addresses, then add routes from dom0 to # If we've been given a list of IP addresses, then add routes from dom0 to
# the guest using those addresses. # the guest using those addresses.
for addr in ${ip} ; do for addr in ${ip} ; do
${cmdprefix} ip route ${ipcmd} ${addr} dev ${vif} || true ${cmdprefix} ip route ${ipcmd} ${addr} dev ${vif} metric $metric
done done
echo ${cmdprefix} iptables -t raw $iptables_cmd -i ${vif} \! -s ${ip} -j DROP echo ${cmdprefix} iptables -t raw $iptables_cmd -i ${vif} \! -s ${ip} -j DROP
${cmdprefix} iptables -t raw $iptables_cmd -i ${vif} \! -s ${ip} -j DROP ${cmdprefix} iptables -t raw $iptables_cmd -i ${vif} \! -s ${ip} -j DROP