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authorBill Nottingham <notting@redhat.com>2001-07-11 05:23:56 +0000
committerBill Nottingham <notting@redhat.com>2001-07-11 05:23:56 +0000
commit3b86e2508b13f4bd6339f7be708a2cf1eab99a44 (patch)
tree9cab5aea5252b6fc072670e92fd2f07cede5ed9d /sysconfig/network-scripts/ifdown-ipv6
parentd4b006581428be84473825bf5d31ed81f6c4a647 (diff)
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big ipv6 update from Pekka Savola (<pekkas@netcore.fi>)
Diffstat (limited to 'sysconfig/network-scripts/ifdown-ipv6')
-rwxr-xr-xsysconfig/network-scripts/ifdown-ipv6106
1 files changed, 75 insertions, 31 deletions
diff --git a/sysconfig/network-scripts/ifdown-ipv6 b/sysconfig/network-scripts/ifdown-ipv6
index 45c7f24d..d111d1cb 100755
--- a/sysconfig/network-scripts/ifdown-ipv6
+++ b/sysconfig/network-scripts/ifdown-ipv6
@@ -6,9 +6,27 @@
# Taken from:
# (P) & (C) 2000-2001 by Peter Bieringer <pb@bieringer.de>
#
-# Version 2001-02-08
+# RHL integration assistance by Pekka Savola <pekkas@netcore.fi>
+#
+# Version 2001-05-22d
+#
+# 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
+#
+# Optional for 6to4 tunneling:
+# IPV6TO4_RELAY=<ipv4address>: IPv4 address of the remote 6to4 relay
+# 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]
+#
+# Requirements for 6to4 if using radvd:
+# radvd-0.6.2p3 or newer supporting option "Base6to4Interface"
#
+
. /etc/sysconfig/network
cd /etc/sysconfig/network-scripts
@@ -18,42 +36,68 @@ CONFIG=$1
[ -f "$CONFIG" ] || CONFIG=ifcfg-$CONFIG
source_config
-# Test if IPv6 configuration is enabled
-if [ ! "$IPV6INIT" = "yes" ]; then
- # not enabled, stop here
- exit 0
+# Test if IPv6 is globally enabled
+if [ ! "${NETWORKING_IPV6}" = "yes" ]; then
+ # Global IPv6 switch not enabled, end now
+ exit 0
+fi
+
+if [ ! -f /etc/sysconfig/network-scripts/network-functions-ipv6 ]; then
+ # IPv6 setup isn't well
+ exit 1
fi
-
-# Test if IPv6 is up
-if [ "${NETWORKING_IPV6}" = "yes" ]; then
- . /etc/sysconfig/network-scripts/network-functions-ipv6
+# Source IPv6 helper functions
+. /etc/sysconfig/network-scripts/network-functions-ipv6
+
+# IPv6 test, no module loaded, exit if system is not IPv6-ready
+test_ipv6 testonly || exit 0
- # Delete additional static IPv6 routes on specified interface
- if [ -f /etc/sysconfig/static-routes-ipv6 ]; then
- grep "^$DEVICE" /etc/sysconfig/static-routes-ipv6 | while read device args; do
- if [ "$device" = "$DEVICE" ]; then
- ifdown_ipv6_route $args $DEVICE
+
+# Switch some sysctls to secure mode
+sysctl -w net.ipv6.conf.$DEVICE.forwarding=0 >/dev/null
+sysctl -w net.ipv6.conf.$DEVICE.accept_ra=0 >/dev/null
+sysctl -w net.ipv6.conf.$DEVICE.accept_redirects=0 >/dev/null
+
+# Shutdown of 6to4, if configured
+valid6to4config="yes"
+if [ -z "$IPV6TO4_RELAY" ]; then
+ valid6to4config="no"
+fi
+if [ "$valid6to4config" = "yes" ]; then
+ if [ "$IPV6TO4_CONTROL_RADVD" = "yes" ]; then
+ # stop RADVD from distributing no longer usable 6to4 prefixes
+ if [ -z "$IPV6TO4_RADVD_PIDFILE" ]; then
+ # Take default
+ IPV6TO4_RADVD_PIDFILE="/var/run/radvd/radvd.pid"
+ fi
+ # Send SIGHUP to radvd
+ if [ -f "$IPV6TO4_RADVD_PIDFILE" ]; then
+ pid="`cat $IPV6TO4_RADVD_PIDFILE`"
+ if [ ! -z "$pid" ]; then
+ # still waiting for feature enabling: stopping distribution of prefixes in RADVD....
+ # kill -SOMETHING $pid
+ false
+ else
+ false
fi
- done
+ fi
fi
- # Switch off forwarding per device (packets received on this
- # interface aren't forwarded
- forwarding_ipv6 no $DEVICE
-
- # Delete additional IPv6 addresses from list
- if [ ! -z "$IPV6ADDR_SECONDARIES" ]; then
- for ipv6addr in $IPV6ADDR_SECONDARIES; do
- ifdown_ipv6_real $DEVICE $ipv6addr
+ if [ ! -z "$IPV6TO4_ROUTING" ]; then
+ # Delete routes to local networks
+ for devsuf in $IPV6TO4_ROUTING; do
+ dev="`echo $devsuf | awk -F- '{ print $1 }'`"
+ ifdown_ipv6_route_all $dev ::
done
fi
-
- # Shutdown basic configured IPv6 address on specified interface
- if ! [ -z "$IPV6ADDR" ]; then
- ifdown_ipv6_real $DEVICE $IPV6ADDR
- fi
- # Cleanup all IPv6 configuration on specified interface (prevents from kernel crashing)
- ifdown_ipv6_real_all $DEVICE
-fi
+ # Delete all static IPv6to4 routes
+ ifdown_ipv6_route_all sit0 ::$IPV6TO4_RELAY
+
+ # Delete all configured 6to4 address
+ ifdown_ipv6to4_all sit0
+fi
+
+# Delete all current configured IPv6 addresses on this interface
+ifdown_ipv6_real_all $DEVICE