Initial commit

package/network/ipv6/odhcp6c/Makefile

@@ -0,0 +1,60 @@
+#
+# Copyright (C) 2012-2015 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=odhcp6c
+PKG_RELEASE:=20
+
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL=$(PROJECT_GIT)/project/odhcp6c.git
+PKG_SOURCE_DATE:=2023-05-12
+PKG_SOURCE_VERSION:=bcd283632ac13391aac3ebdd074d1fd832d76fa3
+PKG_MIRROR_HASH:=0c18c578045f9251bd86a5b8fb0518b69c519e83f69907bf76583a2985482508
+PKG_MAINTAINER:=Hans Dedecker <dedeckeh@gmail.com>
+PKG_LICENSE:=GPL-2.0
+
+include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/cmake.mk
+
+CMAKE_OPTIONS += \
+	-DUSE_LIBUBOX=on
+
+ifneq ($(CONFIG_PACKAGE_odhcp6c_ext_cer_id),0)
+  CMAKE_OPTIONS += -DEXT_CER_ID=$(CONFIG_PACKAGE_odhcp6c_ext_cer_id)
+endif
+
+define Package/odhcp6c
+  SECTION:=net
+  CATEGORY:=Network
+  TITLE:=Embedded DHCPv6-client for OpenWrt
+  DEPENDS:=@IPV6 +libubox
+endef
+
+define Package/odhcp6c/config
+  config PACKAGE_odhcp6c_ext_cer_id
+    int "CER-ID Extension ID (0 = disabled)"
+    depends on PACKAGE_odhcp6c
+    default 0
+endef
+
+define Package/odhcp6c/conffiles
+/etc/odhcp6c.user
+/etc/odhcp6c.user.d/
+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/
+	$(INSTALL_DIR) $(1)/etc/odhcp6c.user.d/
+	$(INSTALL_CONF) ./files/odhcp6c.user $(1)/etc/
+endef
+
+$(eval $(call BuildPackage,odhcp6c))

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

@@ -0,0 +1,244 @@
+#!/bin/sh
+[ -z "$2" ] && echo "Error: should be run by odhcpc6c" && exit 1
+. /lib/functions.sh
+. /lib/netifd/netifd-proto.sh
+
+setup_interface () {
+	local device="$1"
+	local prefsig=""
+	local addrsig=""
+
+	# Apply IPv6 / ND configuration
+	HOPLIMIT=$(cat /proc/sys/net/ipv6/conf/$device/hop_limit)
+	[ -n "$RA_HOPLIMIT" -a -n "$HOPLIMIT" ] && [ "$RA_HOPLIMIT" -gt "$HOPLIMIT" ] && echo "$RA_HOPLIMIT" > /proc/sys/net/ipv6/conf/$device/hop_limit
+	[ -n "$RA_MTU" ] && [ "$RA_MTU" -ge 1280 ] && echo "$RA_MTU" > /proc/sys/net/ipv6/conf/$device/mtu 2>/dev/null
+	[ -n "$RA_REACHABLE" ] && [ "$RA_REACHABLE" -gt 0 ] && echo "$RA_REACHABLE" > /proc/sys/net/ipv6/neigh/$device/base_reachable_time_ms
+	[ -n "$RA_RETRANSMIT" ] && [ "$RA_RETRANSMIT" -gt 0 ] && echo "$RA_RETRANSMIT" > /proc/sys/net/ipv6/neigh/$device/retrans_time_ms
+
+	proto_init_update "*" 1
+
+	# Merge RA-DNS
+	for radns in $RA_DNS; do
+		local duplicate=0
+		for dns in $RDNSS; do
+			[ "$radns" = "$dns" ] && duplicate=1
+		done
+		[ "$duplicate" = 0 ] && RDNSS="$RDNSS $radns"
+	done
+
+	for dns in $RDNSS; do
+		proto_add_dns_server "$dns"
+	done
+
+	for radomain in $RA_DOMAINS; do
+		local duplicate=0
+		for domain in $DOMAINS; do
+			[ "$radomain" = "$domain" ] && duplicate=1
+		done
+		[ "$duplicate" = 0 ] && DOMAINS="$DOMAINS $radomain"
+	done
+
+	for domain in $DOMAINS; do
+		proto_add_dns_search "$domain"
+	done
+
+	for prefix in $PREFIXES; do
+		proto_add_ipv6_prefix "$prefix"
+		prefsig="$prefsig ${prefix%%,*}"
+		local entry="${prefix#*/}"
+		entry="${entry#*,}"
+		entry="${entry#*,}"
+		local valid="${entry%%,*}"
+
+		if [ -z "$RA_ADDRESSES" -a -z "$RA_ROUTES" -a \
+				-z "$RA_DNS" -a "$FAKE_ROUTES" = 1 ]; then
+			RA_ROUTES="::/0,$SERVER,$valid,4096"
+		fi
+	done
+
+	for prefix in $USERPREFIX; do
+		proto_add_ipv6_prefix "$prefix"
+	done
+
+	# Merge addresses
+	for entry in $RA_ADDRESSES; do
+		local duplicate=0
+		local addr="${entry%%/*}"
+		for dentry in $ADDRESSES; do
+			local daddr="${dentry%%/*}"
+			[ "$addr" = "$daddr" ] && duplicate=1
+		done
+		[ "$duplicate" = "0" ] && ADDRESSES="$ADDRESSES $entry"
+	done
+
+	for entry in $ADDRESSES; do
+		local addr="${entry%%/*}"
+		entry="${entry#*/}"
+		local mask="${entry%%,*}"
+		entry="${entry#*,}"
+		local preferred="${entry%%,*}"
+		entry="${entry#*,}"
+		local valid="${entry%%,*}"
+
+		proto_add_ipv6_address "$addr" "$mask" "$preferred" "$valid" 1
+		addrsig="$addrsig $addr/$mask"
+
+		if [ -z "$RA_ADDRESSES" -a -z "$RA_ROUTES" -a \
+				-z "$RA_DNS" -a "$FAKE_ROUTES" = 1 ]; then
+			RA_ROUTES="::/0,$SERVER,$valid,4096"
+		fi
+
+		# RFC 7278
+		if [ "$mask" -eq 64 -a -z "$PREFIXES" -a -n "$EXTENDPREFIX" ]; then
+			proto_add_ipv6_prefix "$addr/$mask,$preferred,$valid"
+
+			local raroutes=""
+			for route in $RA_ROUTES; do
+				local prefix="${route%%/*}"
+				local entry="${route#*/}"
+				local pmask="${entry%%,*}"
+				entry="${entry#*,}"
+				local gw="${entry%%,*}"
+
+				[ -z "$gw" -a "$mask" = "$pmask" ] && {
+					case "$addr" in
+						"${prefix%*::}"*) continue;;
+					esac
+				}
+				raroutes="$raroutes $route"
+			done
+			RA_ROUTES="$raroutes"
+		fi
+	done
+
+	for entry in $RA_ROUTES; do
+		local duplicate=$NOSOURCEFILTER
+		local addr="${entry%%/*}"
+		entry="${entry#*/}"
+		local mask="${entry%%,*}"
+		entry="${entry#*,}"
+		local gw="${entry%%,*}"
+		entry="${entry#*,}"
+		local valid="${entry%%,*}"
+		entry="${entry#*,}"
+		local metric="${entry%%,*}"
+
+		for xentry in $RA_ROUTES; do
+			local xprefix="${xentry%%,*}"
+			xentry="${xentry#*,}"
+			local xgw="${xentry%%,*}"
+
+			[ -n "$gw" -a -z "$xgw" -a "$addr/$mask" = "$xprefix" ] && duplicate=1
+		done
+
+		if [ -z "$gw" -o "$duplicate" = 1 ]; then
+			proto_add_ipv6_route "$addr" "$mask" "$gw" "$metric" "$valid"
+		else
+			for prefix in $PREFIXES $ADDRESSES; do
+				local paddr="${prefix%%,*}"
+				proto_add_ipv6_route "$addr" "$mask" "$gw" "$metric" "$valid" "$paddr"
+			done
+		fi
+	done
+
+	proto_add_data
+	[ -n "$CER" ] && json_add_string cer "$CER"
+	[ -n "$PASSTHRU" ] && json_add_string passthru "$PASSTHRU"
+	[ -n "$ZONE" ] && json_add_string zone "$ZONE"
+	proto_close_data
+
+	proto_send_update "$INTERFACE"
+
+	MAPTYPE=""
+	MAPRULE=""
+
+	if [ -n "$MAPE" -a -f /lib/netifd/proto/map.sh ]; then
+		MAPTYPE="map-e"
+		MAPRULE="$MAPE"
+	elif [ -n "$MAPT" -a -f /lib/netifd/proto/map.sh -a -f /proc/net/nat46/control ]; then
+		MAPTYPE="map-t"
+		MAPRULE="$MAPT"
+	elif [ -n "$LW4O6" -a -f /lib/netifd/proto/map.sh ]; then
+		MAPTYPE="lw4o6"
+		MAPRULE="$LW4O6"
+	fi
+
+	[ -n "$ZONE" ] || ZONE=$(fw3 -q network $INTERFACE 2>/dev/null)
+
+	if [ "$IFACE_MAP" != 0 -a -n "$MAPTYPE" -a -n "$MAPRULE" ]; then
+		[ -z "$IFACE_MAP" -o "$IFACE_MAP" = 1 ] && IFACE_MAP=${INTERFACE}_4
+		json_init
+		json_add_string name "$IFACE_MAP"
+		json_add_string ifname "@$INTERFACE"
+		json_add_string proto map
+		json_add_string type "$MAPTYPE"
+		json_add_string _prefsig "$prefsig"
+		[ "$MAPTYPE" = lw4o6 ] && json_add_string _addrsig "$addrsig"
+		json_add_string rule "$MAPRULE"
+		json_add_string tunlink "$INTERFACE"
+		[ -n "$ZONE_MAP" ] || ZONE_MAP=$ZONE
+		[ -n "$ZONE_MAP" ] && json_add_string zone "$ZONE_MAP"
+		[ -n "$ENCAPLIMIT_MAP" ] && json_add_string encaplimit "$ENCAPLIMIT_MAP"
+		[ -n "$IFACE_MAP_DELEGATE" ] && json_add_boolean delegate "$IFACE_MAP_DELEGATE"
+		json_close_object
+		ubus call network add_dynamic "$(json_dump)"
+	elif [ -n "$AFTR" -a "$IFACE_DSLITE" != 0 -a -f /lib/netifd/proto/dslite.sh ]; then
+		[ -z "$IFACE_DSLITE" -o "$IFACE_DSLITE" = 1 ] && IFACE_DSLITE=${INTERFACE}_4
+		json_init
+		json_add_string name "$IFACE_DSLITE"
+		json_add_string ifname "@$INTERFACE"
+		json_add_string proto "dslite"
+		json_add_string peeraddr "$AFTR"
+		json_add_string tunlink "$INTERFACE"
+		[ -n "$ZONE_DSLITE" ] || ZONE_DSLITE=$ZONE
+		[ -n "$ZONE_DSLITE" ] && json_add_string zone "$ZONE_DSLITE"
+		[ -n "$ENCAPLIMIT_DSLITE" ] && json_add_string encaplimit "$ENCAPLIMIT_DSLITE"
+		[ -n "$IFACE_DSLITE_DELEGATE" ] && json_add_boolean delegate "$IFACE_DSLITE_DELEGATE"
+		json_close_object
+		ubus call network add_dynamic "$(json_dump)"
+	elif [ "$IFACE_464XLAT" != 0 -a -f /lib/netifd/proto/464xlat.sh ]; then
+		[ -z "$IFACE_464XLAT" -o "$IFACE_464XLAT" = 1 ] && IFACE_464XLAT=${INTERFACE}_4
+		json_init
+		json_add_string name "$IFACE_464XLAT"
+		json_add_string ifname "@$INTERFACE"
+		json_add_string proto "464xlat"
+		json_add_string tunlink "$INTERFACE"
+		json_add_string _addrsig "$addrsig"
+		[ -n "$ZONE_464XLAT" ] || ZONE_464XLAT=$ZONE
+		[ -n "$ZONE_464XLAT" ] && json_add_string zone "$ZONE_464XLAT"
+		[ -n "$IFACE_464XLAT_DELEGATE" ] && json_add_boolean delegate "$IFACE_464XLAT_DELEGATE"
+		json_close_object
+		ubus call network add_dynamic "$(json_dump)"
+	fi
+
+	# TODO: $SNTP_IP $SIP_IP $SNTP_FQDN $SIP_DOMAIN
+}
+
+teardown_interface() {
+	proto_init_update "*" 0
+	proto_send_update "$INTERFACE"
+}
+
+case "$2" in
+	bound)
+		teardown_interface "$1"
+		setup_interface "$1"
+	;;
+	informed|updated|rebound)
+		setup_interface "$1"
+	;;
+	ra-updated)
+		[ -n "$ADDRESSES$RA_ADDRESSES$PREFIXES$USERPREFIX" ] && setup_interface "$1"
+	;;
+	started|stopped|unbound)
+		teardown_interface "$1"
+	;;
+esac
+
+# user rules
+[ -f /etc/odhcp6c.user ] && . /etc/odhcp6c.user "$@"
+for f in /etc/odhcp6c.user.d/*; do
+  [ -f "$f" ] && (. "$f" "$@")
+done
+
+exit 0

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

@@ -0,0 +1,144 @@
+#!/bin/sh
+
+. /lib/functions.sh
+. ../netifd-proto.sh
+init_proto "$@"
+
+proto_dhcpv6_init_config() {
+	renew_handler=1
+
+	proto_config_add_string 'reqaddress:or("try","force","none")'
+	proto_config_add_string 'reqprefix:or("auto","no",range(0, 64))'
+	proto_config_add_string clientid
+	proto_config_add_string 'reqopts:list(uinteger)'
+	proto_config_add_string 'defaultreqopts:bool'
+	proto_config_add_string 'noslaaconly:bool'
+	proto_config_add_string 'forceprefix:bool'
+	proto_config_add_string 'extendprefix:bool'
+	proto_config_add_string 'norelease:bool'
+	proto_config_add_string 'noserverunicast:bool'
+	proto_config_add_string 'noclientfqdn:bool'
+	proto_config_add_string 'noacceptreconfig:bool'
+	proto_config_add_array 'ip6prefix:list(ip6addr)'
+	proto_config_add_string iface_dslite
+	proto_config_add_string zone_dslite
+	proto_config_add_string encaplimit_dslite
+	proto_config_add_string iface_map
+	proto_config_add_string zone_map
+	proto_config_add_string encaplimit_map
+	proto_config_add_string iface_464xlat
+	proto_config_add_string zone_464xlat
+	proto_config_add_string zone
+	proto_config_add_string 'ifaceid:ip6addr'
+	proto_config_add_string "userclass"
+	proto_config_add_string "vendorclass"
+	proto_config_add_array "sendopts:list(string)"
+	proto_config_add_boolean delegate
+	proto_config_add_int skpriority
+	proto_config_add_int "soltimeout"
+	proto_config_add_boolean fakeroutes
+	proto_config_add_boolean sourcefilter
+	proto_config_add_boolean keep_ra_dnslifetime
+	proto_config_add_int "ra_holdoff"
+	proto_config_add_boolean verbose
+}
+
+proto_dhcpv6_add_prefix() {
+	append "$3" "$1"
+}
+
+proto_dhcpv6_add_sendopts() {
+	[ -n "$1" ] && append "$3" "-x$1"
+}
+
+proto_dhcpv6_setup() {
+	local config="$1"
+	local iface="$2"
+
+	local reqaddress reqprefix clientid reqopts defaultreqopts noslaaconly forceprefix extendprefix norelease noserverunicast noclientfqdn noacceptreconfig ip6prefix ip6prefixes iface_dslite iface_map iface_464xlat ifaceid userclass vendorclass sendopts delegate zone_dslite zone_map zone_464xlat zone encaplimit_dslite encaplimit_map skpriority soltimeout fakeroutes sourcefilter keep_ra_dnslifetime ra_holdoff verbose
+	json_get_vars reqaddress reqprefix clientid reqopts defaultreqopts noslaaconly forceprefix extendprefix norelease noserverunicast noclientfqdn noacceptreconfig iface_dslite iface_map iface_464xlat ifaceid userclass vendorclass delegate zone_dslite zone_map zone_464xlat zone encaplimit_dslite encaplimit_map skpriority soltimeout fakeroutes sourcefilter keep_ra_dnslifetime ra_holdoff verbose
+	json_for_each_item proto_dhcpv6_add_prefix ip6prefix ip6prefixes
+
+	# Configure
+	local opts=""
+	[ -n "$reqaddress" ] && append opts "-N$reqaddress"
+
+	[ -z "$reqprefix" -o "$reqprefix" = "auto" ] && reqprefix=0
+	[ "$reqprefix" != "no" ] && append opts "-P$reqprefix"
+
+	[ -n "$clientid" ] && append opts "-c$clientid"
+
+	[ "$defaultreqopts" = "0" ] && append opts "-R"
+
+	[ "$noslaaconly" = "1" ] && append opts "-S"
+
+	[ "$forceprefix" = "1" ] && append opts "-F"
+
+	[ "$norelease" = "1" ] && append opts "-k"
+
+	[ "$noserverunicast" = "1" ] && append opts "-U"
+
+	[ "$noclientfqdn" = "1" ] && append opts "-f"
+
+	[ "$noacceptreconfig" = "1" ] && append opts "-a"
+
+	[ -n "$ifaceid" ] && append opts "-i$ifaceid"
+
+	[ -n "$vendorclass" ] && append opts "-V$vendorclass"
+
+	[ -n "$userclass" ] && append opts "-u$userclass"
+
+	[ "$keep_ra_dnslifetime" = "1" ] && append opts "-L"
+
+	[ -n "$skpriority" ] && append opts "-K$skpriority"
+
+	[ -n "$ra_holdoff" ] && append opts "-m$ra_holdoff"
+
+	[ "$verbose" = "1" ] && append opts "-v"
+
+	local opt
+	for opt in $reqopts; do
+		append opts "-r$opt"
+	done
+
+	json_for_each_item proto_dhcpv6_add_sendopts sendopts opts
+
+	append opts "-t${soltimeout:-120}"
+
+	[ -n "$ip6prefixes" ] && proto_export "USERPREFIX=$ip6prefixes"
+	[ -n "$iface_dslite" ] && proto_export "IFACE_DSLITE=$iface_dslite"
+	[ -n "$iface_map" ] && proto_export "IFACE_MAP=$iface_map"
+	[ -n "$iface_464xlat" ] && proto_export "IFACE_464XLAT=$iface_464xlat"
+	[ "$delegate" = "0" ] && proto_export "IFACE_DSLITE_DELEGATE=0"
+	[ "$delegate" = "0" ] && proto_export "IFACE_MAP_DELEGATE=0"
+	[ "$delegate" = "0" ] && proto_export "IFACE_464XLAT_DELEGATE=0"
+	[ -n "$zone_dslite" ] && proto_export "ZONE_DSLITE=$zone_dslite"
+	[ -n "$zone_map" ] && proto_export "ZONE_MAP=$zone_map"
+	[ -n "$zone_464xlat" ] && proto_export "ZONE_464XLAT=$zone_464xlat"
+	[ -n "$zone" ] && proto_export "ZONE=$zone"
+	[ -n "$encaplimit_dslite" ] && proto_export "ENCAPLIMIT_DSLITE=$encaplimit_dslite"
+	[ -n "$encaplimit_map" ] && proto_export "ENCAPLIMIT_MAP=$encaplimit_map"
+	[ "$fakeroutes" != "0" ] && proto_export "FAKE_ROUTES=1"
+	[ "$sourcefilter" = "0" ] && proto_export "NOSOURCEFILTER=1"
+	[ "$extendprefix" = "1" ] && proto_export "EXTENDPREFIX=1"
+
+	proto_export "INTERFACE=$config"
+	proto_run_command "$config" odhcp6c \
+		-s /lib/netifd/dhcpv6.script \
+		$opts $iface
+}
+
+proto_dhcpv6_renew() {
+	local interface="$1"
+	# SIGUSR1 forces odhcp6c to renew its lease
+	local sigusr1="$(kill -l SIGUSR1)"
+	[ -n "$sigusr1" ] && proto_kill_command "$interface" $sigusr1
+}
+
+proto_dhcpv6_teardown() {
+	local interface="$1"
+	proto_kill_command "$interface"
+}
+
+add_protocol dhcpv6
+

package/network/ipv6/odhcp6c/files/odhcp6c.user

@@ -0,0 +1 @@
+# This script is sourced by odhcp6c's dhcpv6.script at every DHCPv6 event.