From 9a44d5192982d82acb2ed25cd5ea34df74181d1f Mon Sep 17 00:00:00 2001
From: Bill Nottingham <notting@redhat.com>
Date: Mon, 29 Jan 2001 21:28:15 +0000
Subject: add ipv6 support (#23576)

---
 sysconfig/network-scripts/ifdown                 |   4 +
 sysconfig/network-scripts/ifdown-ipv6            |  57 ++++
 sysconfig/network-scripts/ifdown-sit             |  42 +++
 sysconfig/network-scripts/ifup                   |   6 +
 sysconfig/network-scripts/ifup-ipv6              |  56 ++++
 sysconfig/network-scripts/ifup-sit               |  41 +++
 sysconfig/network-scripts/network-functions-ipv6 | 341 +++++++++++++++++++++++
 7 files changed, 547 insertions(+)
 create mode 100755 sysconfig/network-scripts/ifdown-ipv6
 create mode 100755 sysconfig/network-scripts/ifdown-sit
 create mode 100755 sysconfig/network-scripts/ifup-ipv6
 create mode 100755 sysconfig/network-scripts/ifup-sit
 create mode 100644 sysconfig/network-scripts/network-functions-ipv6

(limited to 'sysconfig/network-scripts')

diff --git a/sysconfig/network-scripts/ifdown b/sysconfig/network-scripts/ifdown
index 3a7074ba..f055b944 100755
--- a/sysconfig/network-scripts/ifdown
+++ b/sysconfig/network-scripts/ifdown
@@ -38,6 +38,10 @@ if [ -x $OTHERSCRIPT ]; then
 	exec $OTHERSCRIPT $CONFIG $2
 fi
 
+if [ "${NETWORKING_IPV6}" = "yes" ]; then
+    /etc/sysconfig/network-scripts/ifdown-ipv6 $DEVICE
+fi
+
 # Check to make sure the device is actually up
 check_device_down && exit 0
 
diff --git a/sysconfig/network-scripts/ifdown-ipv6 b/sysconfig/network-scripts/ifdown-ipv6
new file mode 100755
index 00000000..5d443cf1
--- /dev/null
+++ b/sysconfig/network-scripts/ifdown-ipv6
@@ -0,0 +1,57 @@
+#!/bin/bash
+#
+# ifdown-ipv6
+#
+# Taken from scripts from:
+#
+# (P) & (C) 2000 Peter Bieringer <pb@bieringer.de>
+#  some hints taken from RedHat scripts
+
+. /etc/sysconfig/network 
+
+cd /etc/sysconfig/network-scripts
+. network-functions 
+
+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
+fi
+  
+# Test if IPv6 is up
+if [ "${NETWORKING_IPV6}" = "yes" ]; then
+	. /etc/sysconfig/network-scripts/network-functions-ipv6
+
+	# Delete additional static IPv6 routes on specified interface
+        if [ -f /etc/sysconfig/static-routes-ipv6 ]; then
+		grep "^$DEVICE" /etc/sysconfig/static-routes-ipv6 | while read device args; do
+                  if [ "$device" = "$DEVICE" ]; then
+			ifdown_ipv6_route $args $DEVICE 
+		  fi
+		done
+	fi
+
+	# Delete tunnel
+	if ! [ -z "$IPV6TUNNELIPV4" -o -z "$IPV6TUNNELROUTE" ]; then
+		ifdown_ipv6_tunnel $DEVICE $IPV6TUNNELIPV4 $IPV6TUNNELROUTE
+	fi
+
+	# Shutdown additional (1) IPv6 address on specified interface
+	if ! [ -z "$IPV6ADDR_0" -o -z "$IPV6PREFIXLENGTH_0" ]; then
+		ifdown_ipv6_real $DEVICE $IPV6ADDR_0 $IPV6PREFIXLENGTH_0
+	fi
+
+	# Shutdown additional (2) IPv6 address on specified interface
+	if ! [ -z "$IPV6ADDR_1" -o -z "$IPV6PREFIXLENGTH_1" ]; then
+		ifdown_ipv6_real $DEVICE $IPV6ADDR_1 $IPV6PREFIXLENGTH_1
+	fi
+
+	# Shutdown IPv6 address on specified interface
+	if ! [ -z "$IPV6ADDR" -o -z "$IPV6PREFIXLENGTH" ]; then
+		ifdown_ipv6_real $DEVICE $IPV6ADDR $IPV6PREFIXLENGTH
+	fi
+fi 
diff --git a/sysconfig/network-scripts/ifdown-sit b/sysconfig/network-scripts/ifdown-sit
new file mode 100755
index 00000000..fb345359
--- /dev/null
+++ b/sysconfig/network-scripts/ifdown-sit
@@ -0,0 +1,42 @@
+#!/bin/sh
+#
+# ifdown-sit
+#
+# Taken from:
+#
+# (P) & (C) 2000 Peter Bieringer <pb@bieringer.de>
+#  some hints taken from RedHat scripts
+
+. /etc/sysconfig/network 
+
+cd /etc/sysconfig/network-scripts
+. network-functions 
+
+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
+fi
+  
+# Test if IPv6 is up
+if [ "${NETWORKING_IPV6}" = "yes" ]; then
+	. /etc/sysconfig/network-scripts/network-functions-ipv6
+
+	# Delete additional static IPv6 routes on specified interface
+        if [ -f /etc/sysconfig/static-routes-ipv6 ]; then
+		grep "^$DEVICE" /etc/sysconfig/static-routes-ipv6 | while read device ipv6route args; do
+			if [ "$device" = "$DEVICE" ]; then
+				ifdown_ipv6_tunnel $DEVICE $IPV6TUNNELIPV4 $ipv6route
+			fi
+		done
+	fi
+
+	# Delete tunnel
+	if ! [ -z "$IPV6TUNNELIPV4" -o -z "$IPV6TUNNELROUTE" ]; then
+		ifdown_ipv6_tunnel $DEVICE $IPV6TUNNELIPV4 $IPV6TUNNELROUTE
+	fi
+fi 
diff --git a/sysconfig/network-scripts/ifup b/sysconfig/network-scripts/ifup
index 0e5ee116..e70eea30 100755
--- a/sysconfig/network-scripts/ifup
+++ b/sysconfig/network-scripts/ifup
@@ -163,6 +163,12 @@ fi
 
 . /etc/sysconfig/network
 
+# IPv6 initialisation?
+if [ "${NETWORKING_IPV6}" = "yes" ]; then
+	/etc/sysconfig/network-scripts/ifup-ipv6 $DEVICE
+fi
+
+
 if [ "${IPX}" = yes ]; then
 	/etc/sysconfig/network-scripts/ifup-ipx ${DEVICE}
 fi
diff --git a/sysconfig/network-scripts/ifup-ipv6 b/sysconfig/network-scripts/ifup-ipv6
new file mode 100755
index 00000000..23d02eb8
--- /dev/null
+++ b/sysconfig/network-scripts/ifup-ipv6
@@ -0,0 +1,56 @@
+#!/bin/sh
+#
+# ifup-ipv6
+#
+# Taken from:
+#
+# (P) & (C) 2000 Peter Bieringer <pb@bieringer.de>
+
+. /etc/sysconfig/network 
+
+cd /etc/sysconfig/network-scripts
+. network-functions 
+
+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
+fi                                                  
+
+# Test if IPv6 is up
+if [ "${NETWORKING_IPV6}" = "yes" ]; then
+	. /etc/sysconfig/network-scripts/network-functions-ipv6
+		
+	# Setup IPv6 address on specified interface
+	if ! [ -z "$IPV6ADDR" -o -z "$IPV6PREFIXLENGTH" ]; then
+		ifup_ipv6_real $DEVICE $IPV6ADDR $IPV6PREFIXLENGTH
+	fi
+		
+	# Setup additional (1) IPv6 address on specified interface
+	if ! [ -z "$IPV6ADDR_0" -o -z "$IPV6PREFIXLENGTH_0" ]; then
+		ifup_ipv6_real $DEVICE $IPV6ADDR_0 $IPV6PREFIXLENGTH_0
+	fi
+
+	# Setup additional (2) IPv6 address on specified interface
+	if ! [ -z "$IPV6ADDR_1" -o -z "$IPV6PREFIXLENGTH_1" ]; then
+		ifup_ipv6_real $DEVICE $IPV6ADDR_1 $IPV6PREFIXLENGTH_1
+	fi
+
+	# Setup additional static IPv6 routes on specified interface
+        [ -f /etc/sysconfig/static-routes-ipv6 ]; then
+		grep "^$DEVICE" /etc/sysconfig/static-routes-ipv6 | while read device args; do
+			if [ "$device" = "$DEVICE" ]; then
+				ifup_ipv6_route $args $DEVICE
+			fi
+		done
+	fi
+		
+	# Setup tunnel
+	if ! [ -z "$IPV6TUNNELIPV4" -o -z "$IPV6TUNNELROUTE" ]; then
+		ifup_ipv6_tunnel $DEVICE $IPV6TUNNELIPV4 $IPV6TUNNELROUTE
+	fi
+fi 
diff --git a/sysconfig/network-scripts/ifup-sit b/sysconfig/network-scripts/ifup-sit
new file mode 100755
index 00000000..a7c5a315
--- /dev/null
+++ b/sysconfig/network-scripts/ifup-sit
@@ -0,0 +1,41 @@
+#!/bin/sh
+#
+# ifup-sit
+#
+# Taken from:
+# (P) & (C) 2000 Peter Bieringer <pb@bieringer.de>
+#  some hints taken from RedHat scripts
+
+. /etc/sysconfig/network 
+
+cd /etc/sysconfig/network-scripts
+. network-functions 
+
+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
+fi                                                  
+
+# Test if IPv6 is up
+if [ "${NETWORKING_IPV6}" = "yes" ]; then
+        . /etc/sysconfig/network-scripts/network-functions-ipv6
+
+	# Setup tunnel
+	if ! [ -z "$IPV6TUNNELIPV4" -o -z "$IPV6TUNNELROUTE" ]; then
+		ifup_ipv6_tunnel $DEVICE $IPV6TUNNELIPV4 $IPV6TUNNELROUTE
+	fi
+
+	# Add additional static IPv6 routes on specified interface
+	if [ -f /etc/sysconfig/static-routes-ipv6 ]; then
+		grep "^$DEVICE" /etc/sysconfig/static-routes-ipv6 | while read device ipv6route args; do
+			if [ "$device" = "$DEVICE" ]; then
+				ifup_ipv6_tunnel $DEVICE $IPV6TUNNELIPV4 $ipv6route
+			fi
+		done
+        fi
+fi 
diff --git a/sysconfig/network-scripts/network-functions-ipv6 b/sysconfig/network-scripts/network-functions-ipv6
new file mode 100644
index 00000000..71c0f005
--- /dev/null
+++ b/sysconfig/network-scripts/network-functions-ipv6
@@ -0,0 +1,341 @@
+#!/bin/sh
+#
+# network-functions-ipv6
+#
+# Taken from:
+# (P) & (C) 1997-2000 Peter Bieringer <pb@bieringer.de>
+
+# DEBUG_IPV6 & 1 "set -x" mode
+# DEBUG_IPV6 & 2 prevents from executing any network configuration
+# DEBUG_IPV6 & 4 shows messages in the test section
+
+#DEBUG_IPV6=$[ 65535 - 1 -2  -4]
+DEBUG_IPV6=0
+
+# Return values
+#  0 = ok
+#  1 = error occurs
+#  2 = not enabled, i.e. no IPv6 kernel support or switched off by configuration
+
+##### Test for IPv6 capabilites
+
+function test_ipv6()
+{
+    if [ -z $DEBUG_IPV6 ] ; then DEBUG_IPV6=0; fi
+
+    if ! [ $[ $DEBUG_IPV6 & 4 ] = 0 ] ; then
+        echo " Tests for IPv6"    
+    fi
+
+    # Test for IPv6 kernel
+    if ! [ $[ $DEBUG_IPV6 & 4 ] = 0 ] ; then
+        echo -n "  Test kernel for IPv6..."
+    fi
+
+    if ! [ -f /proc/net/if_inet6 ]; then
+        echo "Do not found IPv6 in kernel, try to load module"
+	modprobe ipv6
+	
+        if ! [ -f /proc/net/if_inet6 ]; then
+	    if ! [ $[ $DEBUG_IPV6 & 4 ] = 0 ] ; then
+    	        echo "Not compiled for IPv6 - stop!"
+    	    else
+        	echo "Kernel not compiled for IPv6 - stop!"
+    	    fi
+    	    return 2
+	fi
+    else
+        if ! [ $[ $DEBUG_IPV6 & 4 ] = 0 ] ; then
+            echo " Ok!"
+        fi
+    fi
+
+    # Test for IPv6 enabled needed binaries
+    if ! [ $[ $DEBUG_IPV6 & 4 ] = 0 ] ; then
+        echo n "  Test binaries for IPv6 capability..."
+    fi
+
+    if ! ifconfig -? 2>&1 | grep -q "(IPv6)"; then
+    	echo "'`which ifconfig`' (net-tools) not compiled for IPv6 - stop!"
+        return 2
+    fi
+	
+    if ! route -? 2>&1 | grep -q "(IPv6)"; then
+    	echo "'`which route`' (net-tools) not compiled for IPv6 - stop!"
+	return 2
+    fi
+
+    if ! [ $[ $DEBUG_IPV6 & 4 ] = 0 ] ; then
+        echo  "  Ok!"
+    fi
+
+    # Info about executing
+    if [ $[ $DEBUG_IPV6 > 0 ] = 1 ]; then
+        echo  "  Executing in DEBUG_IPV6 mode: $DEBUG_IPV6"
+    fi
+}
+
+##### Static route configuration
+
+# Display usage
+function ifup_ipv6_route_usage() {
+	echo $"Usage: $0 IPv6-network IPv6-gateway [device]"
+}
+
+# set route
+function ifup_ipv6_route() {
+	networkipv6=$1
+	gatewayipv6=$2
+	device=$3		# maybe empty
+
+	if [ -z $networkipv6 ]; then
+		echo $"Missing option IPv6-network'"
+		ifup_ipv6_route_usage
+		return 1
+	fi
+
+	if [ -z $gatewayipv6 ]; then
+		echo $"Missing option 'IPv6-gateway'"
+		ifup_ipv6_route_usage
+		return 1
+	fi
+
+        # Run IPv6 test
+	test_ipv6 || return    
+
+	[ $[ $DEBUG_IPV6 & 1 ] = 0 ] || set -x
+	
+	if [ -z $device ]; then
+                route -A inet6 add $networkipv6 gw $gatewayipv6
+	else
+                route -A inet6 add $networkipv6 gw $gatewayipv6 dev $device
+	fi
+
+	[ $[ $DEBUG_IPV6 & 1 ] = 0 ] || set +x
+}
+
+# delete route
+function ifdown_ipv6_route() {
+	networkipv6=$1
+	gatewayipv6=$2
+	device=$3		# maybe empty
+
+	if [ -z $networkipv6 ]; then
+		echo $"Missing option IPv6-network'"
+		ifup_ipv6_route_usage
+		return 1
+	fi
+
+	if [ -z $gatewayipv6 ]; then
+		echo $"Missing option 'IPv6-gateway'"
+		ifup_ipv6_route_usage
+		return 1
+	fi
+
+        # Run IPv6 test
+	test_ipv6 || return    
+
+	[ $[ $DEBUG_IPV6 & 1 ] = 0 ] || set -x
+	
+	if [ -z $device ]; then
+                route -A inet6 del $networkipv6 gw $gatewayipv6
+	else
+                route -A inet6 del $networkipv6 gw $gatewayipv6 dev $device
+	fi
+
+	[ $[ $DEBUG_IPV6 & 1 ] = 0 ] || set +x
+}
+
+
+##### tunnel configuration
+
+# Display usage
+function ifup_ipv6_tunnel_usage() {
+	echo $"Usage: $0 interfacename IPv4-tunneladdress IPv6-route"
+}
+
+## Configure tunnels up
+function ifup_ipv6_tunnel() {
+	device=$1
+	addressipv4tunnel=$2
+	routeipv6=$3
+
+	if [ -z $device ]; then
+		echo $"Missing option 'device'"
+		ifup_ipv6_tunnel_usage
+		return 1
+	fi
+
+	if [ -z $addressipv4tunnel ]; then
+		echo $"Missing option 'IPv4-tunneladdress'"
+		ifup_ipv6_tunnel_usage
+		return 1
+	fi
+
+	if [ -z $routeipv6 ]; then
+		echo $"Missing option 'IPv6-route'"
+		ifup_ipv6_tunnel_usage
+		return 1
+	fi
+	
+        # Run IPv6 test
+	test_ipv6 || return    
+
+        [ $[ $DEBUG_IPV6 & 1 ] = 0 ] || set -x
+
+        # enable IPv6-over-IPv4 tunnels
+	if ifconfig sit0 | grep -q "UP "; then
+		# already up, do nothing
+		true
+	else
+		# basic tunnel device to up
+	        if [ $[ $DEBUG_IPV6 & 2 ] = 0 ] ; then
+    			ifconfig sit0 up
+		fi
+        fi
+
+        if [ $[ $DEBUG_IPV6 & 2 ] = 0 ]; then
+                # Set up a tunnel
+		route -A inet6 add $routeipv6 gw ::$addressipv4tunnel dev sit0
+        fi
+
+        [ $[ $DEBUG_IPV6 & 1 ] = 0 ] || set +x
+}	
+
+## Configure tunnels down
+
+function ifdown_ipv6_tunnel() {
+	device=$1
+	addressipv4tunnel=$2
+	routeipv6=$3
+
+	if [ -z $device ]; then
+		echo $"Missing option 'device'"
+		ifup_ipv6_tunnel_usage
+		return 1
+	fi
+
+	if [ -z $addressipv4tunnel ]; then
+		echo $"Missing option 'IPv4-tunneladdress'"
+		ifup_ipv6_tunnel_usage
+		return 1
+	fi
+
+	if [ -z $routeipv6 ]; then
+		echo $"Missing option 'IPv6-route'"
+		ifup_ipv6_tunnel_usage
+		return 1
+	fi
+
+        # Run IPv6 test
+	test_ipv6 || return    
+
+        [ $[ $DEBUG_IPV6 & 1 ] = 0 ] ||	set -x
+
+        if [ $[ $DEBUG_IPV6 & 2 ] = 0 ]; then
+                # Set up a tunnel
+		route -A inet6 del $routeipv6 gw ::$addressipv4tunnel dev sit0
+        fi
+
+        # disable IPv6-over-IPv4 tunnels (if no longer a tunnel is up)
+	if route -A inet6 -n | grep sit0 | grep -v -q "^::"; then
+		# existing routes, do nothing
+		true
+	else
+		# basic tunnel device to down
+	        if [ $[ $DEBUG_IPV6 & 2 ] = 0 ] ; then
+    			ifconfig sit0 down
+		fi
+        fi
+
+        [ $[ $DEBUG_IPV6 & 1 ] = 0 ] || set +x
+}	
+
+	
+##### Interface configuration
+
+# Display usage
+function ifup_ipv6_usage() {
+	echo $"Usage: $0 interfacename IPv6-address IPv6-prefixlength"
+}
+
+## Configure interfaces up
+function ifup_ipv6_real() {
+	device=$1
+	address=$2
+	prefixlength=$3
+
+	if [ -z $device ]; then
+		echo $"Missing option 'device'"
+		ifup_ipv6_usage
+		return 1
+	fi
+
+	if [ -z $address ]; then
+		echo $"Missing option 'IPv6-address'"
+		ifup_ipv6_usage
+		return 1
+	fi
+
+	if [ -z $prefixlength ]; then
+		echo $"Missing option 'Prefixlength'"
+		ifup_ipv6_usage
+		return 1
+	fi
+
+    	# Run IPv6 test
+	test_ipv6 || return    
+
+	[ $[ $DEBUG_IPV6 & 1 ] = 0 ] || set -x
+
+        if [ $[ $DEBUG_IPV6 & 2 ] = 0 ]; then
+              ifconfig $device add $address/$length || return 2
+	fi
+    
+        if [ $[ $DEBUG_IPV6 & 2 ] = 0 ]; then
+              route -A inet6 add $address/$prefixlength dev $device || return 2
+	fi
+
+        [ $[ $DEBUG_IPV6 & 1 ] = 0 ] || set +x
+}
+
+
+## Configure interfaces down
+function ifdown_ipv6_real() {
+	device=$1
+	address=$2
+	prefixlength=$3
+
+	if [ -z $device ]; then
+		echo $"Missing option 'device'"
+		ifup_ipv6_usage
+		return 1
+	fi
+
+	if [ -z $address ]; then
+		echo $"Missing option 'IPv6-address'"
+		ifup_ipv6_usage
+		return 1
+	fi
+
+	if [ -z $prefixlength ]; then
+		echo $"Missing option 'Prefixlength'"
+		ifup_ipv6_usage
+		return 1
+	fi
+
+    	# Run IPv6 test
+	test_ipv6 || return    
+
+    	[ $[ $DEBUG_IPV6 & 1 ] = 0 ] || set -x
+
+
+        if [ $[ $DEBUG_IPV6 & 2 ] = 0 ]; then
+              route -A inet6 del $address/$prefixlength dev $device || return 2
+	fi
+        if [ $[ $DEBUG_IPV6 & 2 ] = 0 ]; then
+              ifconfig $device del $address/$length || return 2
+	fi
+    
+    	[ $[ $DEBUG_IPV6 & 1 ] = 0 ] || set +x
+}
-- 
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