odhcp6c: Add preliminary proto-handler

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35135 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 77 insertions, 0 deletions

diff --git a/package/network/ipv6/odhcp6c/files/dhcpv6.script b/package/network/ipv6/odhcp6c/files/dhcpv6.script
new file mode 100755
index 000000000..8f258f5c3
--- /dev/null
+++ b/package/network/ipv6/odhcp6c/files/dhcpv6.script
@@ -0,0 +1,77 @@
+#!/bin/sh
+[ -z "$2" ] && echo "Error: should be run by odhcpc6c" && exit 1
+. /lib/functions.sh
+. /lib/netifd/netifd-proto.sh
+
+ipv6_conf() {
+	echo "$3" > "/proc/sys/net/ipv6/conf/$1/$2"
+}
+
+# RFC 6204 requires us to block forwarding until address acquisition is complete
+ipv6_block_forwarding() {
+	ip6tables "-$2" forwarding_rule -o "$1" -j REJECT --reject-with no-route 2>/dev/null
+}
+
+prepare_interface() {
+	local device="$1"
+
+	ipv6_block_forwarding "$device" A
+
+	ipv6_conf "$device" accept_ra 2
+	ipv6_conf "$device" forwarding 2
+}
+
+cleanup_interface() {
+	local device="$1"
+	ipv6_conf "$device" accept_ra 1
+	ipv6_conf "$device" forwarding 1
+	ipv6_block_forwarding "$device" D
+}
+
+setup_interface () {
+	local device="$1"
+	ipv6_block_forwarding "$device" D
+
+	proto_init_update "*" 1
+
+	for dns in $RDNSS; do
+		proto_add_dns_server "$dns"
+	done
+
+	for domain in $DOMAINS; do
+		proto_add_dns_search "$domain"
+	done
+
+	for prefix in $PREFIXES; do
+		proto_add_ipv6_prefix "$prefix"
+	done
+
+	proto_send_update "$INTERFACE"
+
+	# TODO: $SNTP_IP $SIP_IP $SNTP_FQDN $SIP_DOMAIN
+}
+
+teardown_interface() {
+	proto_init_update "*" 0
+	proto_send_update "$INTERFACE"
+}
+
+case "$2" in
+	started)
+		prepare_interface "$1"
+	;;
+	stopped)
+		cleanup_interface "$1"
+	;;
+	informed|bound|updated|rebound)
+		setup_interface "$1"
+	;;
+	unbound|timeout)
+		teardown_interface "$1"
+	;;
+esac
+
+# user rules
+[ -f /etc/odhcp6c.user ] && . /etc/odhcp6c.user
+
+exit 0