Synnefo » snf-network

#!/bin/bash

source /etc/default/snf-network

source $CONF

NETWORK=$GANETI_GROUP_NETWORK_NAME

MODE=$GANETI_GROUP_NETWORK_MODE

LINK=$GANETI_GROUP_NETWORK_LINK

HOSTNAME=$(hostname)

NETFILE=$SHAREDDIR/networks/$NETWORK

NODEMAPFILE=$SHAREDDIR/mappings/$NETWORK-$HOSTNAME

NODEINFRAFILE=$SHAREDDIR/infra/$HOSTNAME

CLUSTERINFRAFILE=$SHAREDDIR/infra/cluster

RT_TABLES=/etc/iproute2/rt_tables

if [ ! -e $NODEMAPFILE ]; then

  exit 0

fi

source $NODEINFRAFILE

source $CLUSTERINFRAFILE

source $NETFILE

source $NODEMAPFILE

if [ "$MODE" == "routed" ]; then 

  TABLE=rt_$NETWORK

  if [ "$TYPE" == "public" ]; then

    VLAN=$PUBLIC_VLAN

    ARP_IP=$(ipcalc $SUBNET | grep HostMax | awk '{print $2}')

    if [ -n "$SUBNET" ]; then

      arptables -D OUTPUT -o $VLAN --opcode request -j mangle --mangle-ip-s  $ARP_IP 

      if [ -n "$GATEWAY" ]; then  

        ip route del default via $GATEWAY dev $VLAN table $TABLE

      fi

      ip route del $SUBNET dev $VLAN table $TABLE

      ip route del $SUBNET dev $VLAN table main 

      ip rule del iif $VLAN table $TABLE

    fi

    if [ -n "$SUBNET6" ]; then

      if [ -n "$GATEWAY6" ]; then

        ip -6 route del default via $GATEWAY6 dev $VLAN table $TABLE

      fi

      ip -6 route add $SUBNET6 dev $VLAN table $TABLE

      ip -6 route add $SUBNET6 dev $VLAN table main

      ip -6 rule add iff $VLAN table $TABLE

    fi

    sed -i 's/.*'"$TABLE"'$//' $RT_TABLES

  fi

fi

if [ "$MODE" == "bridged" ]; then

  BRIDGE=$LINK

  if [ ! -z "$GATEWAY" -a $ENABLE_MASQ]; then

    if [ "$TYPE" == "private" ]; then 

      if [ "$HOSTNAME" == "$ROUTER" ]; then

        NETMASK=$(ipcalc $SUBNET | grep Netmask | awk '{print $4}')

        ip addr del $GATEWAY/$NETMASK dev $BRIDGE

        iptables -t nat -D POSTROUTING -s $SUBNET \! -d 192.168.0.0/16 -j MASQUERADE

      fi  

    fi

  fi

fi

rm $NODEMAPFILE