odhcp6c: Add preliminary proto-handler

SVN-Revision: 35135

package/network/ipv6/odhcp6c/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=odhcp6c
-PKG_VERSION:=2013-01-02
+PKG_VERSION:=2013-01-11
 PKG_RELEASE=$(PKG_SOURCE_VERSION)
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
@@ -31,6 +31,9 @@ endef
 define Package/odhcp6c/install
 	$(INSTALL_DIR) $(1)/usr/sbin/
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/odhcp6c $(1)/usr/sbin/
+	$(INSTALL_DIR) $(1)/lib/netifd/proto
+	$(INSTALL_BIN) ./files/dhcpv6.sh $(1)/lib/netifd/proto/dhcpv6.sh
+	$(INSTALL_BIN) ./files/dhcpv6.script $(1)/lib/netifd/
 endef
 
 $(eval $(call BuildPackage,odhcp6c))

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

package/network/ipv6/odhcp6c/files/dhcpv6.sh

@@ -0,0 +1,48 @@
+#!/bin/sh
+
+. /lib/functions.sh
+. ../netifd-proto.sh
+init_proto "$@"
+
+proto_dhcpv6_init_config() {
+	proto_config_add_string "reqaddress"
+	proto_config_add_string "reqprefix"
+	proto_config_add_string "clientid"
+	proto_config_add_string "reqopts"
+}
+
+proto_dhcpv6_setup() {
+	local config="$1"
+	local iface="$2"
+
+	local reqaddress reqprefix clientid reqopts
+	json_get_vars reqaddress reqprefix clientid reqopts
+
+
+	# Configure
+	local opts=""
+	[ -n "$reqaddress" ] && append opts "-N$reqaddress"
+
+	[ -z "$reqprefix" -o "$reqprefix" = "auto" ] && reqprefix=0
+	[ "$reqprefix" != "no" ] && append opts "-P$reqprefix"
+
+	[ -n "$clientid" ] && append opts "-c$clientid"
+
+	for opt in $reqopts; do
+		append opts "-r$opt"
+	done
+
+
+	proto_export "INTERFACE=$config"
+	proto_run_command "$config" odhcp6c \
+		-s /lib/netifd/dhcpv6.script \
+		$opts $iface
+}
+
+proto_dhcpv6_teardown() {
+	local interface="$1"
+	proto_kill_command "$interface"
+}
+
+add_protocol dhcpv6
+