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authorBill Nottingham <notting@redhat.com>2002-03-11 22:42:29 +0000
committerBill Nottingham <notting@redhat.com>2002-03-11 22:42:29 +0000
commit5473ffcdc6afc4a3fb56fb0019e3b34854be9a3d (patch)
treee1bd8be7bee11624d0967933662e2dae185dc912 /ppp/ip-up.ipv6to4
parent83c5f7d06c0bcb45a71c3ccc3f513903d38242c2 (diff)
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*BIG* IPv6 syncup. <pekkas@netcore.fi>
Diffstat (limited to 'ppp/ip-up.ipv6to4')
-rw-r--r--ppp/ip-up.ipv6to4126
1 files changed, 74 insertions, 52 deletions
diff --git a/ppp/ip-up.ipv6to4 b/ppp/ip-up.ipv6to4
index 7124868d..79d99c03 100644
--- a/ppp/ip-up.ipv6to4
+++ b/ppp/ip-up.ipv6to4
@@ -1,29 +1,38 @@
-#!/bin/bash
+#!/bin/sh
#
# ip-up.ipv6to4
#
#
# Taken from:
-# (P) & (C) 2000-2001 by Peter Bieringer <pb@bieringer.de>
+# (P) & (C) 2000-2002 by Peter Bieringer <pb@bieringer.de>
#
-# Version 2001-07-15a
+# You will find more information in the IPv6-HowTo for Linux at
+# http://www.bieringer.de/linux/IPv6/
+#
+# Version 2002-01-25
#
# Calling parameters:
# $1: interface name
#
-# Called by (mostly) /etc/ppp/ip-up.local
+# Called (mostly) by /etc/ppp/ip-up.local
# like: /etc/ppp/ip-up.ipv6to4 $1 >>/var/log/ppp-ipv6to4.log 2>&1
#
+# Note: this script will *kill* older still existing 6to4 tunnels regardless
+# whether they were set before by another device
+#
# Uses following information from /etc/sysconfig/network:
# NETWORKING_IPV6=yes|no: controls IPv6 initialization (global setting)
#
# Uses following information from /etc/sysconfig/network-scripts/ifcfg-$1:
# IPV6TO4INIT=yes|no: controls configuration
-# IPV6TO4_IPV4ADDR=IPv4addr: special local address for 6to4 tunneling (only needed behind a NAT gateway)
-# IPV6TO4_RELAY=IPv4addr: remote IPv6to4 relay address
-# IPV6TO4_ROUTING="eth0-:f101::0/64 eth1-:f102::0/64": information to setup local subnetting
-# IPV6TO4_CONTROL_RADVD=yes|no: controls radvd triggering
-# IPV6TO4_RADVD_PIDFILE=file: PID file of radvd for sending signals, default is "/var/run/radvd/radvd.pid"
+# IPV6TO4_IPV4ADDR=<IPv4 address>: special local address for 6to4 tunneling (only needed behind a NAT gateway)
+# IPV6TO4_RELAY=<IPv4 address>: remote 6to4 relay router address [default: 192.88.99.1]
+# IPV6TO4_ROUTING="<device>-<suffix>/<prefix length> ...": information to setup local subnetting
+# Example: IPV6TO4_ROUTING="eth0-:f101::0/64 eth1-:f102::0/64"
+#
+# 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]
#
# Requirements
# radvd-0.6.2p3 or newer supporting option "Base6to4Interface"
@@ -31,7 +40,7 @@
if [ -z "$1" ]; then
- echo $"Option 1 is empty but should contain interface name - skip IPv6to4 initialization" >/dev/stderr
+ echo $"Argument 1 is empty but should contain interface name - skip IPv6to4 initialization"
exit 1
fi
@@ -46,8 +55,12 @@ CONFIG=$1
[ -f "$CONFIG" ] || CONFIG=ifcfg-$CONFIG
source_config
+# IPv6 don't need aliases anymore, config is skipped
+REALDEVICE=`echo ${DEVICE} | sed 's/:.*//g'`
+[ "$DEVICE" != "$REALDEVICE" ] && exit 0
+
# Test whether IPv6 should be configured, else stop
-[ "${NETWORKING_IPV6}" = "yes" ] || exit 0
+[ "$NETWORKING_IPV6" = "yes" ] || exit 0
if [ ! -f /etc/sysconfig/network-scripts/network-functions-ipv6 ]; then
exit 1
@@ -55,9 +68,9 @@ fi
. /etc/sysconfig/network-scripts/network-functions-ipv6
-# Run basic IPv6 test (and make sure the ipv6 module will be loaded), if not ok, skip IPv6 initialization
-test_ipv6 || exit 1
+# Run basic IPv6 test (and make sure the ipv6 module will be loaded), if not ok, skip IPv6 initialization
+ipv6_test || exit 1
# Setup of 6to4, if configured
valid6to4config="yes"
@@ -75,75 +88,84 @@ if [ "$IPV6TO4INIT" = "yes" ]; then
fi
if [ ! -z "$ipv4addr" ]; then
# Test for non-global IPv4 address
- if ! testipv4_globalusable $ipv4addr; then
- echo $"Given IPv4 address $ipv4addr is not a globally usable one, 6to4 configuration is not valid!"
+ if ! ipv6_test_ipv4_addr_global_usable $ipv4addr; then
+ echo $"Given IPv4 address '$ipv4addr' is not globally usable, 6to4 configuration is not valid"
valid6to4config="no"
fi
- if [ -z "$IPV6TO4_RELAY" ]; then
- echo $"IPv6to4 configuration needs an IPv6to4 relay address, 6to4 configuration is not valid!"
- valid6to4config="no"
- fi
else
- echo $"IPv6to4 configuration needs an IPv4 address on related interface or extra specified, 6to4 configuration is not valid!"
+ echo $"IPv6to4 configuration needs an IPv4 address on related interface or otherwise specified, 6to4 configuration is not valid"
valid6to4config="no"
fi
+ if [ -z "$IPV6TO4_RELAY" ]; then
+ IPV6TO4_RELAY="192.88.99.1"
+ fi
+
+ # Check/generate relay address
+ ipv6to4_relay="`ipv6_create_6to4_relay_address $IPV6TO4_RELAY`"
+ if [ $? -ne 0 ]; then
+ valid6to4config="no"
+ fi
+
if [ "$valid6to4config" = "yes" ]; then
# Beep
if [ -x /usr/bin/beep ]; then /usr/bin/beep -f 2000; else echo -en "\a" >/dev/console; fi
- # Cleanup all old data (needed, if "ip-down.ipv6to4" wasn't executed)
-
- # Delete all static IPv6to4 routes to relay
- ifdown_ipv6_route_all sit0 ::$IPV6TO4_RELAY
-
# Delete routes to local networks
- for devsuf in $IPV6TO4_ROUTING; do
- dev="`echo $devsuf | awk -F- '{ print $1 }'`"
- ifdown_ipv6_route_all $dev ::
+ for devsuf in $IPV6TO4_ROUTING; do
+ dev="`echo $devsuf | awk -F- '{ print $1 }'`"
+ ipv6_cleanup_routes $dev ::
done
- # Delete all configured 6to4 address
- ifdown_ipv6to4_all sit0
-
+ # Cleanup all old data (needed, if "ip-down.ipv6to4" wasn't executed), delete all configured 6to4 address
+ ipv6_cleanup_6to4_tunnels tun6to4
+
# Setup new data
- ifup_ipv6to4 $DEVICE $ipv4addr || exit 1
-
+ ipv6_add_6to4_tunnel tun6to4 $ipv4addr || exit 1
+
+ # Add default route, if device matches
+ if [ "$IPV6_DEFAULTDEV" = "tun6to4" ]; then
+ if [ ! -z "$IPV6_DEFAULTGW" ]; then
+ echo $"Warning: interface 'tun6to4' does not support 'IPV6_DEFAULTGW', ignored"
+ fi
+ ipv6_set_default_route $ipv6to4_relay tun6to4
+ fi
+
+ # Add static routes
if [ -f /etc/sysconfig/static-routes-ipv6 ]; then
- grep -w "^sit0" /etc/sysconfig/static-routes-ipv6 | while read device args; do
- ifup_ipv6_route $args ::$IPV6TO4_RELAY sit0
+ LC_ALL=C grep -w "^tun6to4" /etc/sysconfig/static-routes-ipv6 | while read device network gateway; do
+ if [ -z "$network" ]; then
+ continue
+ fi
+ if [ -z "$gateway" ]; then
+ gateway="$ipv6to4_relay"
+ fi
+ ipv6_add_route $network $gateway tun6to4
done
fi
+
+ # Cleanup autmatically generated autotunnel (not needed for 6to4)
+ ipv6_del_route "::/96" "::" tun6to4
+ ipv6_del_addr_on_device tun6to4 "::$ipv4addr/128"
- if [ "$IPV6TO4_CONTROL_RADVD" = "yes" ]; then
- if [ -z "$IPV6TO4_RADVD_PIDFILE" ]; then
- # Take default
- IPV6TO4_RADVD_PIDFILE="/var/run/radvd/radvd.pid"
- fi
+ if [ "$IPV6_CONTROL_RADVD" = "yes" ]; then
+ # Control running radvd
+ ipv6_trigger_radvd up "$IPV6_RADVD_TRIGGER_ACTION" $IPV6_RADVD_PIDFILE
- if [ -f "$IPV6TO4_RADVD_PIDFILE" ]; then
- pid="`cat $IPV6TO4_RADVD_PIDFILE`"
- if [ ! -z "$pid" ]; then
- echo $"Trigger RADVD for IPv6to4 prefix recalculation"
- kill -HUP $pid
- else
- false
- fi
- fi
if [ ! -z "$IPV6TO4_ROUTING" ]; then
# Generate 6to4 address
- ipv6to4prefix="`create6to4prefix $ipv4addr`"
+ ipv6to4prefix="`ipv6_create_6to4_prefix $ipv4addr`"
if [ ! -z "$ipv6to4prefix" ]; then
# Add route to local networks
for devsuf in $IPV6TO4_ROUTING; do
dev="`echo $devsuf | awk -F- '{ print $1 }'`"
suf="`echo $devsuf | awk -F- '{ print $2 }'`"
- ifup_ipv6_route ${ipv6to4prefix}$suf :: $dev
+ ipv6_add_route ${ipv6to4prefix}$suf :: $dev
done
else
echo $"Error occured while calculating the IPv6to4 prefix"
fi
else
- echo $"RADVD control enabled, but config is not complete!"
+ echo $"radvd control enabled, but config is not complete"
fi
fi