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-rwxr-xr-xsysconfig/network-scripts/ifup-ipv6185
1 files changed, 109 insertions, 76 deletions
diff --git a/sysconfig/network-scripts/ifup-ipv6 b/sysconfig/network-scripts/ifup-ipv6
index cd5d0062..dc628341 100755
--- a/sysconfig/network-scripts/ifup-ipv6
+++ b/sysconfig/network-scripts/ifup-ipv6
@@ -4,19 +4,25 @@
#
#
# Taken from:
-# (P) & (C) 2000-2001 by Peter Bieringer <pb@bieringer.de>
+# (P) & (C) 2000-2002 by Peter Bieringer <pb@bieringer.de>
+#
+# You will find more information in the IPv6-HowTo for Linux at
+# http://www.bieringer.de/linux/IPv6/
#
# RHL integration assistance by Pekka Savola <pekkas@netcore.fi>
#
-# Version 2001-07-16
+# Version 2002-01-25
+#
+# Note: if called (like normally) by /etc/sysconfig/network-scripts/ifup
+# exit codes aren't handled by "ifup"
#
# 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":
# IPV6INIT=yes|no: controls IPv6 configuration for this interface
-# IPV6ADDR=<ipv6address>/<prefixlength>: specify primary static IPv6 address here
-# IPV6ADDR_SECONDARIES="<list of ipv6 addresses>" [optional]
+# IPV6ADDR=<IPv6 address>[/<prefix length>]: specify primary static IPv6 address
+# IPV6ADDR_SECONDARIES="<IPv6 address>[/<prefix length>] ..." (optional)
# IPV6_ROUTER=yes|no: controls IPv6 autoconfiguration (no: multi-homed interface without routing)
# IPV6_AUTOCONF=yes|no: controls IPv6 autoconfiguration
# defaults:
@@ -24,16 +30,22 @@
# IPV6FORWARDING=no: IPV6_AUTOCONF=yes
# IPV6_MTU=<MTU for IPv6>: controls IPv6 MTU for this link [optional]
#
-# Optional for 6to4 tunneling:
+# Optional for 6to4 tunneling (hardwired name of tunnel device is "tun6to4"):
# IPV6TO4INIT=yes|no: controls 6to4 tunneling setup
-# IPV6TO4_RELAY=<ipv4address|ipv6to4address>: IPv4/IPv6to4 address of the remote 6to4 relay
-# IPV6TO4_IPV4ADDR=<ipv6address>: overwrite local IPv4 address [optional]
-# IPV6TO4_ROUTING="eth0-:f101::0/64 eth1-:f102::0/64": information to setup local subnetting
-# IPV6TO4_CONTROL_RADVD=yes|no: controls radvd triggering [optional]
-# IPV6TO4_RADVD_PIDFILE=file: PID file of radvd for sending signals, default is "/var/run/radvd/radvd.pid" [optional]
+# IPV6TO4_RELAY=<IPv4 address>: IPv4 address of the remote 6to4 relay [default: 192.88.99.1]
+# IPV6TO4_IPV4ADDR=<IPv4 address>: overwrite local IPv4 address [optional]
+# IPV6TO4_ROUTING="<device>-<suffix>/<prefix length> ...": information to setup local subnetting
+# Example: IPV6TO4_ROUTING="eth0-:f101::0/64 eth1-:f102::0/64"
+#
+# Optional for 6to4 tunneling to trigger radvd:
+# IPV6_CONTROL_RADVD=yes|no: controls radvd triggering [optional]
+# IPV6_RADVD_PIDFILE=<file>: PID file of radvd for sending signals, default is "/var/run/radvd/radvd.pid" [optional]
+# IPV6_RADVD_TRIGGER_ACTION=startstop|reload|restart|SIGHUP: how to trigger radvd [optional, default is SIGHUP]
#
-# Requirements for 6to4 if using radvd:
-# radvd-0.6.2p3 or newer supporting option "Base6to4Interface"
+# Required version of radvd to use 6to4 prefix recalculation
+# 0.6.2p3 or newer supporting option "Base6to4Interface"
+# Required version of radvd to use dynamic ppp links
+# 0.7.0 + fixes or newer
#
@@ -48,6 +60,10 @@ 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" != "$REALDEVICE" ] && exit 0
+
# Test whether IPv6 configuration is enabled for this interface, else stop
[ "$IPV6INIT" = "yes" ] || exit 0
@@ -61,17 +77,24 @@ fi
# Source IPv6 helper functions
. /etc/sysconfig/network-scripts/network-functions-ipv6
+
# IPv6 test, module loaded, exit if system is not IPv6-ready
-test_ipv6 || exit 1
+ipv6_test || exit 1
+
+# Test device status
+ipv6_test_device_status $DEVICE
+if [ $? != 0 -a $? != 11 ]; then
+ # device doesn't exist or other problem occurs
+ exit 1
+fi
-
# Setup IPv6 address on specified interface
if ! [ -z "$IPV6ADDR" ]; then
- ifup_ipv6_real $DEVICE $IPV6ADDR
+ ipv6_add_addr_on_device $DEVICE $IPV6ADDR || exit 1
fi
# Get current global IPv6 forwarding
-ipv6_global_forwarding_current="`sysctl -n net.ipv6.conf.all.forwarding`"
+ipv6_global_forwarding_current="`ipv6_exec_sysctl -n net.ipv6.conf.all.forwarding`"
# Set some proc switches depending on defines
if [ "$IPV6FORWARDING" = "yes" ]; then
@@ -80,7 +103,7 @@ if [ "$IPV6FORWARDING" = "yes" ]; then
# Check, if global IPv6 forwarding was already set by global script
if [ $ipv6_global_forwarding_current -ne 1 ]; then
echo $"Global IPv6 forwarding is enabled in configuration, but not currently enabled in kernel"
-# echo $"Please restart network with '/sbin/service network restart'"
+ echo $"Please restart network with '/sbin/service network restart'"
fi
ipv6_local_forwarding=1
@@ -97,7 +120,7 @@ else
# Check, if global IPv6 forwarding was already set by global script
if [ $ipv6_global_forwarding_current -ne 0 ]; then
echo $"Global IPv6 forwarding is disabled in configuration, but not currently disabled in kernel"
-# echo $"Please restart network with '/sbin/service network restart'"
+ echo $"Please restart network with '/sbin/service network restart'"
fi
ipv6_local_forwarding=0
@@ -106,124 +129,134 @@ else
ipv6_local_auto=0
fi
fi
-sysctl -w net.ipv6.conf.$DEVICE.forwarding=$ipv6_local_forwarding >/dev/null
-sysctl -w net.ipv6.conf.$DEVICE.accept_ra=$ipv6_local_auto >/dev/null
-sysctl -w net.ipv6.conf.$DEVICE.accept_redirects=$ipv6_local_auto >/dev/null
+ipv6_exec_sysctl -w net.ipv6.conf.$DEVICE.forwarding=$ipv6_local_forwarding >/dev/null
+ipv6_exec_sysctl -w net.ipv6.conf.$DEVICE.accept_ra=$ipv6_local_auto >/dev/null
+ipv6_exec_sysctl -w net.ipv6.conf.$DEVICE.accept_redirects=$ipv6_local_auto >/dev/null
# Set IPv6 MTU, if given
if [ ! -z "$IPV6_MTU" ]; then
ipv6_set_mtu $DEVICE $IPV6_MTU
fi
-# Setup additional IPv6 addresses from list
+# Setup additional IPv6 addresses from list, if given
if [ ! -z "$IPV6ADDR_SECONDARIES" ]; then
for ipv6addr in $IPV6ADDR_SECONDARIES; do
- ifup_ipv6_real $DEVICE $ipv6addr
+ ipv6_add_addr_on_device $DEVICE $ipv6addr
done
fi
-# Setup additional static IPv6 routes on specified interface
+# Setup default IPv6 route, check are done by function
+if [ ! -z "$IPV6_DEFAULTDEV" -o ! -z "$IPV6_DEFAULTGW" ]; then
+ ipv6_set_default_route "$IPV6_DEFAULTGW" "$IPV6_DEFAULTDEV" "$DEVICE"
+fi
+
+# Setup additional static IPv6 routes on specified interface, if given
if [ -f /etc/sysconfig/static-routes-ipv6 ]; then
- grep -w "^$DEVICE" /etc/sysconfig/static-routes-ipv6 | while read device args; do
- ifup_ipv6_route $args $DEVICE
+ LC_ALL=C grep -w "^$DEVICE" /etc/sysconfig/static-routes-ipv6 | while read device args; do
+ ipv6_add_route $args $DEVICE
done
fi
# Setup of 6to4, if configured
if [ "$IPV6TO4INIT" = "yes" ]; then
valid6to4config="yes"
+
+ # Test device status of 6to4 tunnel
+ ipv6_test_device_status tun6to4
+ if [ $? = 0 ]; then
+ # device is already up
+ echo $"Device 'tun6to4' (from '$DEVICE') is already up, shutdown first"
+ exit 1
+ fi
+
+ # Get IPv4 address for local 6to4 prefix calculation
if [ ! -z "$IPV6TO4_IPV4ADDR" ]; then
# Take special configured from config file (precedence 1)
ipv4addr="$IPV6TO4_IPV4ADDR"
else
# Get IPv4 address from interface first (has precedence 2)
- ipv4addr="`LC_ALL=C ifconfig $DEVICE |grep "inet addr:" | tr : " " | awk '{ print $3 }'`"
+ ipv4addr="`ipv6_get_ipv4addr_of_device $DEVICE`"
if [ -z "$ipv4addr" ]; then
# Take configured from config file (precedence 3)
ipv4addr="$IPADDR"
fi
fi
if [ ! -z "$ipv4addr" ]; then
- 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 $"IPv6to4 configuration needs an IPv6to4 relay address, 6to4 configuration is not valid!"
- valid6to4config="no"
+ IPV6TO4_RELAY="192.88.99.1"
fi
- if [ "$valid6to4config" = "yes" ]; then
- if testipv4_globalusable $IPV6TO4_RELAY 2>/dev/null; then
- true
- elif testipv6_valid $IPV6TO4_RELAY; then
- relay6to4type="ipv6"
- if echo $IPV6TO4_RELAY | grep -q "^2002:"; then
- # IPv6 address is a 6to4 (further tests not be implemented at the moment)
- true
- else
- echo $"Given IPv6 address of relay is not a 6to4 one, 6to4 configuration is not valid!"
- valid6to4config="no"
- fi
- else
- echo $"Given address of relay is not a globally usable one, 6to4 configuration is not valid!"
- valid6to4config="no"
- fi
+
+ # Check/generate relay address
+ ipv6to4_relay="`ipv6_create_6to4_relay_address $IPV6TO4_RELAY`"
+ if [ $? -ne 0 ]; then
+ valid6to4config="no"
fi
else
- echo $"IPv6to4 configuration needs an IPv4 address on related interface or extra specified, 6to4 configuration is not valid!"
+ echo $"IPv6to4 configuration needs an IPv4 address on related interface or otherwise specified, 6to4 configuration is not valid"
valid6to4config="no"
fi
+
+ # Setup 6to4 tunnel (hardwired name is "tun6to4"), if config is valid
if [ "$valid6to4config" = "yes" ]; then
- ifup_ipv6to4 $DEVICE $ipv4addr
+ ipv6_add_6to4_tunnel tun6to4 $ipv4addr
+
+ # Add default route, if device matches
+ if [ "$IPV6_DEFAULTDEV" = "tun6to4" ]; then
+ if [ ! -z "$IPV6_DEFAULTGW" ]; then
+ echo $"Warning: interface 'tun6to4' does not support 'IPV6_DEFAULTGW', ignored"
+ fi
+ ipv6_set_default_route $ipv6to4_relay tun6to4
+ fi
# Add static routes
if [ -f /etc/sysconfig/static-routes-ipv6 ]; then
- grep -w "^sit0" /etc/sysconfig/static-routes-ipv6 | while read device network dummy; do
- if [ "$relay6to4type" = "ipv6" ]; then
- # Foreign 6to4 relay gateway as IPv6to4
- ifup_ipv6_route $network $IPV6TO4_RELAY sit0
- else
- # Foreign 6to4 relay gateway as compatible IPv4
- ifup_ipv6_route $network ::$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 $ipv6to4_relay tun6to4
done
- fi
+ fi
+
+ # Cleanup autmatically generated autotunnel (not needed for 6to4)
+ ipv6_del_route "::/96" "::" tun6to4
+ ipv6_del_addr_on_device tun6to4 "::$ipv4addr/128"
- if [ "$IPV6TO4_CONTROL_RADVD" = "yes" ]; then
+ if [ "$IPV6_CONTROL_RADVD" = "yes" ]; then
# RADVD is in use, so forwarding of IPv6 packets should be enabled, display warning
if [ $ipv6_global_forwarding_current -ne 1 ]; then
- echo $"Using 6to4 and RADVD IPv6 forwarding usually should be enabled, but it isn't!"
+ echo $"Using 6to4 and RADVD IPv6 forwarding usually should be enabled, but it isn't"
fi
- if [ -z "$IPV6TO4_RADVD_PIDFILE" ]; then
- IPV6TO4_RADVD_PIDFILE="/var/run/radvd/radvd.pid"
- fi
-
- # Send SIGHUP to radvd for prefix recalculation
- 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
- 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 $"radvd control enabled, but config is not complete"
fi
+
+ # Control running radvd
+ ipv6_trigger_radvd up "$IPV6_RADVD_TRIGGER_ACTION" $IPV6_RADVD_PIDFILE
fi
+ else
+ echo $"6to4 configuration is not valid"
+ exit 1
fi
fi
+
generated by cgit v1.2.1 (git 2.21.0) at 2024-06-29 14:01:03 +0000