#!/bin/bash # Copyright (C) 1996-2006 Red Hat, Inc. all rights reserved. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License, version 2, # as published by the Free Software Foundation. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA # Thanks to: # - Razvan Corneliu C.R. Vilt # - Aaron Hope # - Sean Millichamp # for providing the scripts this one is based on . /etc/init.d/functions cd /etc/sysconfig/network-scripts . /etc/sysconfig/network-scripts/network-functions CONFIG=$1 need_config "$CONFIG" source_config if [ "$PEER_OUTER_IPADDR" = "$PEER_INNER_IPADDR" ]; then # Specifying PEER_INNER_IPADDR would automatically add a route to the peer # through the tunnel, redirecting tunnel packets back to the tunnel and # creating a dead loop. unset PEER_INNER_IPADDR fi case "$TYPE" in GRE) MODE=gre /sbin/modprobe ip_gre ;; IPIP) MODE=ipip /sbin/modprobe ipip ;; *) echo $"Invalid tunnel type $TYPE" exit 1 ;; esac # Generic tunnel devices are not supported here if [ "$DEVICE" = gre0 -o "$DEVICE" = tunl0 ]; then echo $"Device '$DEVICE' isn't supported as a valid GRE device name." exit 1 fi # Create the tunnel # The outer addresses are those of the underlying (public) network. /sbin/ip tunnel add "$DEVICE" mode "$MODE" \ ${MY_OUTER_IPADDR:+local "$MY_OUTER_IPADDR"} \ remote "$PEER_OUTER_IPADDR" ${TTL:+ttl "$TTL"} if [ -n "$MTU" ]; then /sbin/ip link set "$DEVICE" mtu "$MTU" fi # The inner address are used mainly for communication between a gateway # and a private network. When the peer is configured with an inner address # contained in the peer's private network or identical to it's public address, # it need not be specified. /sbin/ip addr add "$MY_INNER_IPADDR" dev "$DEVICE" \ ${PEER_INNER_IPADDR:+peer "$PEER_INNER_IPADDR"} /sbin/ip link set dev "$DEVICE" up exec /etc/sysconfig/network-scripts/ifup-post "$CONFIG" "$2"