You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
115 lines
3.1 KiB
115 lines
3.1 KiB
3 weeks ago
|
#!/bin/sh
|
||
|
|
#
|
||
|
|
# ip-down.ipv6to4
|
||
|
|
#
|
||
|
|
#
|
||
|
|
# Taken from:
|
||
|
|
# (P) & (C) 2000-2005 by Peter Bieringer <pb@bieringer.de>
|
||
|
|
#
|
||
|
|
# You will find more information on the initscripts-ipv6 homepage at
|
||
|
|
# http://www.deepspace6.net/projects/initscripts-ipv6.html
|
||
|
|
#
|
||
|
|
# Version 2005-09-22
|
||
|
|
#
|
||
|
|
# Calling parameters:
|
||
|
|
# $1: interface name
|
||
|
|
#
|
||
|
|
# Called (mostly) by /etc/ppp/ip-down.local
|
||
|
|
# like: /etc/ppp/ip-down.ipv6to4 $1 >>/var/log/ppp-ipv6to4.log 2>&1
|
||
|
|
#
|
||
|
|
# Note: this script will *check* whether the existing 6to4 tunnel
|
||
|
|
# was set before by using "ip-up.ipv6to4" comparing IPv4 address
|
||
|
|
# of device with the generated 6to4 prefix
|
||
|
|
#
|
||
|
|
# Uses following information from /etc/sysconfig/network-scripts/ifcfg-$1:
|
||
|
|
# IPV6TO4INIT=yes|no: controls configuration
|
||
|
|
# IPV6TO4_ROUTING="<device>-<suffix>/<prefix length> ...": information to setup additional interfaces
|
||
|
|
#
|
||
|
|
# IPV6_CONTROL_RADVD=yes|no: controls radvd triggering
|
||
|
|
# IPV6_RADVD_PIDFILE=<file>: PID file of radvd for sending signals, default is "/var/run/radvd/radvd.pid"
|
||
|
|
# IPV6_RADVD_TRIGGER_ACTION=startstop|reload|restart|SIGHUP: how to trigger radvd (optional, default is SIGHUP)
|
||
|
|
#
|
||
|
|
|
||
|
|
|
||
|
|
if [ -z "$1" ]; then
|
||
|
|
echo $"Argument 1 is empty but should contain interface name - skip IPv6to4 initialization"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Get global network configuration
|
||
|
|
. /etc/sysconfig/network
|
||
|
|
|
||
|
|
# Source IPv4 helper functions
|
||
|
|
cd /etc/sysconfig/network-scripts
|
||
|
|
. ./network-functions
|
||
|
|
|
||
|
|
CONFIG=$1
|
||
|
|
[ -f "$CONFIG" ] || CONFIG=ifcfg-$CONFIG
|
||
|
|
source_config
|
||
|
|
|
||
|
|
# IPv6 don't need aliases anymore, config is skipped
|
||
|
|
REALDEVICE=${DEVICE%%:*}
|
||
|
|
[ "$DEVICE" != "$REALDEVICE" ] && exit 0
|
||
|
|
|
||
|
|
if [ ! -f /etc/sysconfig/network-scripts/network-functions-ipv6 ]; then
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
. /etc/sysconfig/network-scripts/network-functions-ipv6
|
||
|
|
|
||
|
|
|
||
|
|
# Run basic IPv6 test, if not ok, skip IPv6 initialization
|
||
|
|
ipv6_test testonly || exit 0
|
||
|
|
|
||
|
|
# Test status of ppp device
|
||
|
|
ipv6_test_device_status $DEVICE
|
||
|
|
if [ $? != 0 -a $? != 11 ]; then
|
||
|
|
# device doesn't exist or other problem occurs
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Test status of tun6to4 device
|
||
|
|
ipv6_test_device_status tun6to4
|
||
|
|
if [ $? = 0 -o $? = 11 ]; then
|
||
|
|
# Device exists
|
||
|
|
valid6to4config="yes"
|
||
|
|
|
||
|
|
# Get IPv4 address from interface
|
||
|
|
ipv4addr="$(ipv6_get_ipv4addr_of_device $DEVICE)"
|
||
|
|
if [ -z "$ipv4addr" ]; then
|
||
|
|
# Has no IPv4 address
|
||
|
|
valid6to4config="no"
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Get local IPv4 address of dedicated tunnel
|
||
|
|
ipv4addr6to4local="$(ipv6_get_ipv4addr_of_tunnel tun6to4 local)"
|
||
|
|
|
||
|
|
# IPv6to4 not enabled on this interface?
|
||
|
|
if [ $IPV6TO4INIT != "yes" ]; then
|
||
|
|
# Check against configured 6to4 tunnel to see if this interface was regardless used before
|
||
|
|
if [ "$ipv4addr" != "$ipv4addr6to4local" ]; then
|
||
|
|
# IPv4 address of interface does't match local tunnel address, interface was not used for current 6to4 setup
|
||
|
|
valid6to4config="no"
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ "$valid6to4config" = "yes" ]; then
|
||
|
|
if [ "$IPV6_CONTROL_RADVD" = "yes" ]; then
|
||
|
|
# Control running radvd
|
||
|
|
ipv6_trigger_radvd down "$IPV6_RADVD_TRIGGER_ACTION" $IPV6_RADVD_PIDFILE
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ -n "$IPV6TO4_ROUTING" ]; then
|
||
|
|
# Delete routes to local networks
|
||
|
|
for devsuf in $IPV6TO4_ROUTING; do
|
||
|
|
dev="${devsuf%%-*}"
|
||
|
|
ipv6_cleanup_6to4_device $dev
|
||
|
|
done
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Delete all configured 6to4 address
|
||
|
|
ipv6_cleanup_6to4_tunnels tun6to4
|
||
|
|
fi
|