Synnefo » snf-network

#!/bin/bash

# This is an example of a Ganeti kvm ifup script that configures network

# interfaces based on the initial deployment of the Okeanos project

source /etc/default/snf-network

source /usr/lib/snf-network/common.sh

FROM=FROM${INTERFACE^^}

TO=TO${INTERFACE^^}

try clear_routed_setup_ipv4

try clear_routed_setup_ipv6

try clear_routed_setup_firewall

try clear_ebtables

try clear_nfdhcpd

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

  TABLE=$LINK

  ip link set $INTERFACE addr $TAP_CONSTANT_MAC up

  INDEV=$INTERFACE

  DROPDHCPREQCMD="iptables -A FORWARD -i $INTERFACE -p udp --dport 67 -j DROP"

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

  ip link set $INTERFACE up

  brctl addif $BRIDGE $INTERFACE

  INDEV=$BRIDGE

  try init_ebtables

  # nfdhcpd creates responses with src mac the mac of indec

  INDEV_MAC=$(cat /sys/class/net/$INDEV/address)

  DROPDHCPREQCMD="runlocked $RUNLOCKED_OPTS ebtables -A $FROM -p ipv4 --ip-protocol udp --ip-destination-port 67 -j DROP"

fi

for tag in $NETWORK_TAGS; do

  case $tag in

  $IP_LESS_ROUTED_TAG)

    try routed_setup_ipv4

    try routed_setup_ipv6

    try routed_setup_firewall

  ;;

  $NFDHCPD_TAG)

    # Drop unicast BOOTP/DHCP packets

    $DROPDHCPREQCMD

    try setup_nfdhcpd

  ;;

  $MAC_FILTERED_TAG)

    try setup_ebtables

  ;;

  $MASQ_TAG)

    try setup_masq

  ;;

  esac

done

if [ -x "$IFUP_EXTRA_SCRIPT" ]; then

  exec $IFUP_EXTRA_SCRIPT "$@"

fi

exit 0