Initial commit

package/network/config/gre/Makefile

@@ -0,0 +1,44 @@
+#
+# Copyright (C) 2014 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:=gre
+PKG_RELEASE:=13
+PKG_LICENSE:=GPL-2.0
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/gre/Default
+endef
+
+define Package/gre
+  SECTION:=net
+  CATEGORY:=Network
+  MAINTAINER:=Hans Dedecker <dedeckeh@gmail.com>
+  TITLE:=Generic Routing Encapsulation config support
+  DEPENDS:=+kmod-gre +IPV6:kmod-gre6 +resolveip
+  PROVIDES:=grev4 grev6
+  PKGARCH:=all
+endef
+
+define Package/gre/description
+ Generic Routing Encapsulation config support (IPv4 and IPv6) in /etc/config/network.
+endef
+
+define Build/Compile
+endef
+
+define Build/Configure
+endef
+
+define Package/gre/install
+	$(INSTALL_DIR) $(1)/lib/netifd/proto
+	$(INSTALL_BIN) ./files/gre.sh $(1)/lib/netifd/proto/gre.sh
+endef
+
+$(eval $(call BuildPackage,gre))

package/network/config/gre/files/gre.sh

@@ -0,0 +1,296 @@
+#!/bin/sh
+
+[ -n "$INCLUDE_ONLY" ] || {
+	. /lib/functions.sh
+	. /lib/functions/network.sh
+	. ../netifd-proto.sh
+	init_proto "$@"
+}
+
+gre_generic_setup() {
+	local cfg="$1"
+	local mode="$2"
+	local local="$3"
+	local remote="$4"
+	local link="$5"
+	local mtu ipv6 ttl tos zone ikey okey icsum ocsum iseqno oseqno multicast
+	json_get_vars mtu ipv6 ttl tos zone ikey okey icsum ocsum iseqno oseqno multicast
+
+	[ -z "$multicast" ] && multicast=1
+
+	proto_init_update "$link" 1
+
+	proto_add_tunnel
+	json_add_string mode "$mode"
+	json_add_int mtu "${mtu:-1280}"
+	json_add_boolean ipv6 "${ipv6:-1}"
+	[ -n "$df" ] && json_add_boolean df "$df"
+	[ -n "$ttl" ] && json_add_int ttl "$ttl"
+	[ -n "$tos" ] && json_add_string tos "$tos"
+	json_add_boolean multicast "$multicast"
+	json_add_string local "$local"
+	json_add_string remote "$remote"
+	[ -n "$tunlink" ] && json_add_string link "$tunlink"
+
+	json_add_object 'data'
+	[ -n "$ikey" ] && json_add_int ikey "$ikey"
+	[ -n "$okey" ] && json_add_int okey "$okey"
+	[ -n "$icsum" ] && json_add_boolean icsum "$icsum"
+	[ -n "$ocsum" ] && json_add_boolean ocsum "$ocsum"
+	[ -n "$iseqno" ] && json_add_boolean iseqno "$iseqno"
+	[ -n "$oseqno" ] && json_add_boolean oseqno "$oseqno"
+	[ -n "$encaplimit" ] && json_add_string encaplimit "$encaplimit"
+	json_close_object
+
+	proto_close_tunnel
+
+	proto_add_data
+	[ -n "$zone" ] && json_add_string zone "$zone"
+	proto_close_data
+
+	proto_send_update "$cfg"
+}
+
+gre_setup() {
+	local cfg="$1"
+	local mode="$2"
+	local remoteip
+
+	local ipaddr peeraddr
+	json_get_vars df ipaddr peeraddr tunlink nohostroute
+
+	[ -z "$peeraddr" ] && {
+		proto_notify_error "$cfg" "MISSING_PEER_ADDRESS"
+		proto_block_restart "$cfg"
+		exit
+	}
+
+	remoteip=$(resolveip -t 10 -4 "$peeraddr")
+
+	if [ -z "$remoteip" ]; then
+		proto_notify_error "$cfg" "PEER_RESOLVE_FAIL"
+		exit
+	fi
+
+	for ip in $remoteip; do
+		peeraddr=$ip
+		break
+	done
+
+	if [ "${nohostroute}" != "1" ]; then
+		( proto_add_host_dependency "$cfg" "$peeraddr" "$tunlink" )
+	fi
+
+	[ -z "$ipaddr" ] && {
+		local wanif="$tunlink"
+		if [ -z $wanif ] && ! network_find_wan wanif; then
+			proto_notify_error "$cfg" "NO_WAN_LINK"
+			exit
+		fi
+
+		if ! network_get_ipaddr ipaddr "$wanif"; then
+			proto_notify_error "$cfg" "NO_WAN_LINK"
+			exit
+		fi
+	}
+
+	[ -z "$df" ] && df="1"
+
+	case "$mode" in
+		gretapip)
+			gre_generic_setup $cfg $mode $ipaddr $peeraddr "gre4t-$cfg"
+			;;
+		*)
+			gre_generic_setup $cfg $mode $ipaddr $peeraddr "gre4-$cfg"
+			;;
+	esac
+}
+
+proto_gre_setup() {
+	local cfg="$1"
+
+	gre_setup $cfg "greip"
+}
+
+proto_gretap_setup() {
+	local cfg="$1"
+
+	local network
+	json_get_vars network
+
+	gre_setup $cfg "gretapip"
+
+	json_init
+	json_add_string name "gre4t-$cfg"
+	json_add_boolean link-ext 0
+	json_close_object
+
+	for i in $network; do
+		ubus call network.interface."$i" add_device "$(json_dump)"
+	done
+}
+
+grev6_setup() {
+	local cfg="$1"
+	local mode="$2"
+	local remoteip6
+
+	local ip6addr peer6addr weakif
+	json_get_vars ip6addr peer6addr tunlink weakif encaplimit nohostroute
+
+	[ -z "$peer6addr" ] && {
+		proto_notify_error "$cfg" "MISSING_PEER_ADDRESS"
+		proto_block_restart "$cfg"
+		exit
+	}
+
+	remoteip6=$(resolveip -t 10 -6 "$peer6addr")
+
+	if [ -z "$remoteip6" ]; then
+		proto_notify_error "$cfg" "PEER_RESOLVE_FAIL"
+		exit
+	fi
+
+	for ip6 in $remoteip6; do
+		peer6addr=$ip6
+		break
+	done
+
+	if [ "${nohostroute}" != "1" ]; then
+		( proto_add_host_dependency "$cfg" "$peer6addr" "$tunlink" )
+	fi
+
+	[ -z "$ip6addr" ] && {
+		local wanif="$tunlink"
+		if [ -z $wanif ] && ! network_find_wan6 wanif; then
+			proto_notify_error "$cfg" "NO_WAN_LINK"
+			exit
+		fi
+
+		if ! network_get_ipaddr6 ip6addr "$wanif"; then
+			[ -z "$weakif" ] && weakif="lan"
+			if ! network_get_ipaddr6 ip6addr "$weakif"; then
+				proto_notify_error "$cfg" "NO_WAN_LINK"
+				exit
+			fi
+		fi
+	}
+
+	case "$mode" in
+		gretapip6)
+			gre_generic_setup $cfg $mode $ip6addr $peer6addr "gre6t-$cfg"
+			;;
+		*)
+			gre_generic_setup $cfg $mode $ip6addr $peer6addr "gre6-$cfg"
+			;;
+	esac
+}
+
+proto_grev6_setup() {
+	local cfg="$1"
+
+	grev6_setup $cfg "greip6"
+}
+
+proto_grev6tap_setup() {
+	local cfg="$1"
+
+	local network
+	json_get_vars network
+
+	grev6_setup $cfg "gretapip6"
+
+	json_init
+	json_add_string name "gre6t-$cfg"
+	json_add_boolean link-ext 0
+	json_close_object
+
+	for i in $network; do
+		ubus call network.interface."$i" add_device "$(json_dump)"
+	done
+}
+
+gretap_generic_teardown() {
+	local network
+	json_get_vars network
+
+	json_init
+	json_add_string name "$1"
+	json_add_boolean link-ext 0
+	json_close_object
+
+	for i in $network; do
+		ubus call network.interface."$i" remove_device "$(json_dump)"
+	done
+}
+
+proto_gre_teardown() {
+	local cfg="$1"
+}
+
+proto_gretap_teardown() {
+	local cfg="$1"
+
+	gretap_generic_teardown "gre4t-$cfg"
+}
+
+proto_grev6_teardown() {
+	local cfg="$1"
+}
+
+proto_grev6tap_teardown() {
+	local cfg="$1"
+
+	gretap_generic_teardown "gre6t-$cfg"
+}
+
+gre_generic_init_config() {
+	no_device=1
+	available=1
+
+	proto_config_add_int "mtu"
+	proto_config_add_boolean "ipv6"
+	proto_config_add_int "ttl"
+	proto_config_add_string "tos"
+	proto_config_add_string "tunlink"
+	proto_config_add_string "zone"
+	proto_config_add_int "ikey"
+	proto_config_add_int "okey"
+	proto_config_add_boolean "icsum"
+	proto_config_add_boolean "ocsum"
+	proto_config_add_boolean "iseqno"
+	proto_config_add_boolean "oseqno"
+	proto_config_add_boolean "multicast"
+}
+
+proto_gre_init_config() {
+	gre_generic_init_config
+	proto_config_add_string "ipaddr"
+	proto_config_add_string "peeraddr"
+	proto_config_add_boolean "df"
+	proto_config_add_boolean "nohostroute"
+}
+
+proto_gretap_init_config() {
+	proto_gre_init_config
+	proto_config_add_string "network"
+}
+
+proto_grev6_init_config() {
+	gre_generic_init_config
+	proto_config_add_string "ip6addr"
+	proto_config_add_string "peer6addr"
+	proto_config_add_string "weakif"
+	proto_config_add_string "encaplimit"
+	proto_config_add_boolean "nohostroute"
+}
+
+proto_grev6tap_init_config() {
+	proto_grev6_init_config
+	proto_config_add_string "network"
+}
+
+[ -n "$INCLUDE_ONLY" ] || {
+	[ -d /sys/module/ip_gre ] && { add_protocol gre; add_protocol gretap; }
+	[ -d /sys/module/ip6_gre ] && { add_protocol grev6; add_protocol grev6tap; }
+}