AA: add ipv6-support for transitioning between IPv6-stacks

git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@36712 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 42 insertions, 0 deletions

diff --git a/package/ipv6-support/files/ipv6-boot b/package/ipv6-support/files/ipv6-boot
new file mode 100755
index 0000000000..a0d3856c03
--- /dev/null
+++ b/package/ipv6-support/files/ipv6-boot
@@ -0,0 +1,15 @@
+#!/bin/sh /etc/rc.common
+START=11
+STOP=97
+
+start() {
+	# early sysctl to avoid networking races
+	if [ -d /proc/sys/net/ipv6/conf ]; then
+		for i in /proc/sys/net/ipv6/conf/*/accept_ra; do
+			echo 0 > $i
+		done
+
+		echo 1 > /proc/sys/net/ipv6/conf/default/forwarding
+		echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
+	fi
+}
diff --git a/package/ipv6-support/files/network-enable-ipv6.defaults b/package/ipv6-support/files/network-enable-ipv6.defaults
new file mode 100755
index 0000000000..7bde74267f
--- /dev/null
+++ b/package/ipv6-support/files/network-enable-ipv6.defaults
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+# Remove conflicting sysctl-handler
+rm -f /etc/hotplug.d/iface/10-sysctl
+
+# Don't override existing settings
+uci get network.globals && exit 0
+
+# Sometimes results are empty, therefore try until it works...          
+local r1 r2 r3
+while [ -z "$r1" -o -z "$r2" -o -z "$r3" ]; do
+	r1=$(printf "%02x" $(($(</dev/urandom tr -dc 0-9 | dd bs=9 count=1) % 256)))
+	r2=$(printf "%01x" $(($(</dev/urandom tr -dc 0-9 | dd bs=9 count=1) % 65536)))
+	r3=$(printf "%01x" $(($(</dev/urandom tr -dc 0-9 | dd bs=9 count=1) % 65536)))
+done
+
+
+uci -q batch <<-EOF >/dev/null
+	set network.globals=globals
+	set network.globals.ula_prefix=fd$r1:$r2:$r3::/48
+	set network.wan6=interface
+	set network.wan6.proto=dhcpv6
+	set network.wan6.ifname=@wan
+	set network.lan.ip6assign=64
+	set network.wan.ipv6=1
+	commit network
+EOF