100 lines
2.8 KiB
Bash
Executable File
100 lines
2.8 KiB
Bash
Executable File
#!/bin/bash
|
|
# Copyright (C) 1996-2009 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
|
|
# Thanks to:
|
|
# - Razvan Corneliu C.R. Vilt <razvan.vilt@linux360.ro>
|
|
# - Aaron Hope <aaron.hope@unh.edu>
|
|
# - Sean Millichamp <sean@enertronllc.com>
|
|
# for providing the scripts this one is based on
|
|
|
|
. /etc/init.d/functions
|
|
|
|
cd /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
|
|
proto=-4
|
|
/sbin/modprobe ip_gre
|
|
;;
|
|
GRE6)
|
|
MODE=ip6gre
|
|
proto=-6
|
|
/sbin/modprobe ip6_gre
|
|
;;
|
|
IPIP)
|
|
MODE=ipip
|
|
proto=-4
|
|
/sbin/modprobe ipip
|
|
;;
|
|
IPIP6|EXTERNAL)
|
|
MODE=ipip6
|
|
proto=-6
|
|
/sbin/modprobe ip6_tunnel
|
|
;;
|
|
*)
|
|
net_log $"Invalid tunnel type $TYPE"
|
|
exit 1
|
|
;;
|
|
esac
|
|
|
|
# Generic tunnel devices are not supported here
|
|
if [ "$DEVICE" = gre0 -o "$DEVICE" = tunl0 -o "$DEVICE" = ip6tnl0 ]; then
|
|
net_log $"Device '$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.
|
|
if [ "$TYPE" = 'EXTERNAL' ]; then
|
|
/sbin/ip link add "$DEVICE" type ip6tnl external
|
|
else
|
|
/sbin/ip $proto tunnel add "$DEVICE" mode "$MODE" \
|
|
${MY_OUTER_IPADDR:+local "$MY_OUTER_IPADDR"} \
|
|
${PEER_OUTER_IPADDR:+remote "$PEER_OUTER_IPADDR"} \
|
|
${KEY:+key "$KEY"} ${TTL:+ttl "$TTL"}
|
|
fi
|
|
|
|
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"}
|
|
|
|
set_link_up "${DEVICE}"
|
|
|
|
# IPv6 initialisation?
|
|
/etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG}
|
|
|
|
exec /etc/sysconfig/network-scripts/ifup-post "$CONFIG" "$2"
|