Synnefo » snf-network

#!/bin/bash

DEFAULT=/etc/default/snf-network

source $DEFAULT

source $CONF

source $INFRA

HOSTNAME=$(hostname)

INTERFACES=$SHAREDDIR/interfaces/$HOSTNAME

HOSTINFRA=$SHAREDDIR/infra/$HOSTNAME

if [ -e "$HOSTINFRA" ]; then

  source $HOSTINFRA

fi

if [ -e /proc/sys/net/ipv4/conf/$PUBLIC_VLAN  -o \

#     -e /proc/sys/net/ipv4/conf/$PUBLIC_BRIDGE -o \

     -e /proc/sys/net/ipv4/conf/$MASQ_VLAN -o \

     -e /proc/sys/net/ipv4/conf/$MASQ_BRIDGE -o \

     -e /proc/sys/net/ipv4/conf/$PRIVATE_VLAN -o \

     -e /proc/sys/net/ipv4/conf/$PRIVATE_BRIDGE ]; then 

  echo Interfaces already exist! Please check: 

  echo $PUBLIC_BRIDGE for bridging TAPs with public IPs

  echo $PUBLIC_VLAN for routing TAPs with public IPs

  echo $PRIVATE_VLAN  bridged on $PRIVATE_BRIDGE for private LANs

  echo $MASQ_VLAN bridged on $MASQ_BRIDGE for private IPs that get MASQUERADED

  exit 1

fi

PUBLIC_MAC=$(ip link show $PUBLIC_INTERFACE | grep link/ether | awk '{print $2}')

cat > $INTERFACES<<EOF

#auto $PUBLIC_BRIDGE

#iface $PUBLIC_BRIDGE inet manual

#  bridge_ports $PUBLIC_INTERFACE

#  bridge_stp off

#  bridge_fd 2

#  post-up ip link set $PUBLIC_BRIDGE address $PUBLIC_MAC 

auto $PUBLIC_VLAN

iface $PUBLIC_VLAN inet manual

auto $PRIVATE_VLAN

iface $PRIVATE_VLAN inet manual

auto $PRIVATE_BRIDGE

iface $PRIVATE_BRIDGE inet manual

  bridge_ports $PRIVATE_VLAN

  bridge_stp off

  bridge_fd 2

  post-up ip link set $PRIVATE_BRIDGE address $PUBLIC_MAC 

auto $MASQ_VLAN

iface $MASQ_VLAN inet manual

auto $MASQ_BRIDGE

iface $MASQ_BRIDGE inet manual

  bridge_ports $MASQ_VLAN

  bridge_stp off

  bridge_fd 2

  post-up ip link set $MASQ_BRIDGE address $PUBLIC_MAC 

EOF

ifup -i $INTERFACES -a

echo 1 > /proc/sys/net/ipv4/conf/all/forwarding

echo 1 > /proc/sys/net/ipv4/ip_forward