diff options
Diffstat (limited to 'ppp/ip-up.ipv6to4')
| -rw-r--r-- | ppp/ip-up.ipv6to4 | 126 |
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 |