root / hooks / group-modify-post.d / snf-network @ d2b16e51
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#!/bin/bash |
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source /etc/default/snf-network |
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source $CONF |
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GROUP=$GANETI_GROUP_NAME |
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ACTION=$GANETI_GROUP_NETWORK_ACTION |
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NETWORK=$GANETI_GROUP_NETWORK_NAME |
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MODE=$GANETI_GROUP_NETWORK_MODE |
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LINK=$GANETI_GROUP_NETWORK_LINK |
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HOSTNAME=$(hostname) |
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NETFILE=$SHAREDDIR/networks/$NETWORK |
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GROUPMAPFILE=$SHAREDDIR/mappings/$NETWORK-$GROUP |
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NODEMAPFILE=$SHAREDDIR/mappings/$NETWORK-$HOSTNAME |
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NODEINFRAFILE=$SHAREDDIR/infra/$HOSTNAME |
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RT_TABLES=/etc/iproute2/rt_tables |
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source $NODEINFRAFILE |
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source $NETFILE |
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if [ -z "$ACTION" ]; then |
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exit 0 |
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fi |
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if [ "$ACTION" == "add" ]; then |
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if [ "$MODE" == "routed" ]; then |
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VLAN=$LINK |
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TABLE=rt_$NETWORK |
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if [ "$TYPE" == "public" ]; then |
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ARP_IP=$(ipcalc $SUBNET | grep HostMax | awk '{print $2}')
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ip link set $VLAN up |
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echo 1 > "/proc/sys/net/ipv4/conf/$VLAN/proxy_arp" |
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ID=$(wc -l < $RT_TABLES) |
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echo $((ID+1)) $TABLE >> $RT_TABLES |
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ip rule add iif $VLAN table $TABLE |
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ip route add $SUBNET dev $VLAN table main |
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ip route add $SUBNET dev $VLAN table $TABLE |
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ip route add default via $GATEWAY dev $VLAN table $TABLE |
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echo 1 > /proc/sys/net/ipv4/conf/all/forwarding |
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arptables -A OUTPUT -o $VLAN --opcode request -j mangle --mangle-ip-s $ARP_IP |
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fi |
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fi |
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if [ "$MODE" == "bridged" ]; then |
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BRIDGE=$LINK |
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if [ ! -z "$GATEWAY" ]; then |
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if [ "$TYPE" == "private" ]; then |
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if [ "$HOSTNAME" == "$ROUTER" ]; then |
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NETMASK=$(ipcalc $SUBNET | grep Netmask | awk '{print $4}')
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ip addr add $GATEWAY/$NETMASK dev $BRIDGE |
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iptables -t nat -A POSTROUTING -s $SUBNET \! -d 192.168.0.0/16 -j MASQUERADE |
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fi |
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fi |
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fi |
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fi |
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ln -sf $GROUPMAPFILE $NODEMAPFILE |
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elif [ "$ACTION" == "remove" ]; then |
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if [ ! -e "$NODEMAPFILE" ]; then |
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exit 0; |
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fi |
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source $NODEMAPFILE |
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if [ "$MODE" == "routed" ]; then |
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VLAN=$LINK |
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TABLE=rt_$NETWORK |
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if [ "$TYPE" == "public" ]; then |
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ARP_IP=$(ipcalc $SUBNET | grep HostMax | awk '{print $2}')
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arptables -D OUTPUT -o $VLAN --opcode request -j mangle --mangle-ip-s $ARP_IP |
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ip route del default via $GATEWAY dev $VLAN table $TABLE |
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ip route del $SUBNET dev $VLAN table $TABLE |
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ip route del $SUBNET dev $VLAN table main |
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ip rule del iif $VLAN table $TABLE |
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sed -i 's/.*'"$TABLE"'$//' $RT_TABLES |
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fi |
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fi |
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if [ "$MODE" == "bridged" ]; then |
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BRIDGE=$LINK |
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if [ ! -z "$GATEWAY" ]; then |
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if [ "$TYPE" == "private" ]; then |
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if [ "$HOSTNAME" == "$ROUTER" ]; then |
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NETMASK=$(ipcalc $SUBNET | grep Netmask | awk '{print $4}')
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ip addr del $GATEWAY/$NETMASK dev $BRIDGE |
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iptables -t nat -D POSTROUTING -s $SUBNET \! -d 192.168.0.0/16 -j MASQUERADE |
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fi |
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fi |
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fi |
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fi |
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rm $NODEMAPFILE |
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fi |