X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/5334f6ff6f606565543f8f834f3249a4f0c19e73..52b72cdab75ac5e82ce71d2190dc6e779fd9a9b0:/package/6to4/files/6to4.sh?ds=sidebyside

diff --git a/package/6to4/files/6to4.sh b/package/6to4/files/6to4.sh
index 9dfd7cd52..682538564 100755
--- a/package/6to4/files/6to4.sh
+++ b/package/6to4/files/6to4.sh
@@ -1,5 +1,12 @@
+#!/bin/sh
 # 6to4.sh - IPv6-in-IPv4 tunnel backend
-# Copyright (c) 2010 OpenWrt.org
+# Copyright (c) 2010-2012 OpenWrt.org
+
+[ -n "$INCLUDE_ONLY" ] || {
+	. /etc/functions.sh
+	. ../netifd-proto.sh
+	init_proto "$@"
+}
 
 find_6to4_wanif() {
 	local if=$(ip -4 r l e 0.0.0.0/0); if="${if#default* dev }"; if="${if%% *}"
@@ -18,170 +25,214 @@ find_6to4_prefix() {
 	printf "2002:%02x%02x:%02x%02x\n" $1 $2 $3 $4
 }
 
-# Hook into scan_interfaces() to synthesize a .device option
-# This is needed for /sbin/ifup to properly dispatch control
-# to setup_interface_6to4() even if no .ifname is set in
-# the configuration.
-scan_6to4() {
-	config_set "$1" device "6to4-$1"
+test_6to4_rfc1918()
+{
+	local oIFS="$IFS"; IFS="."; set -- $1; IFS="$oIFS"
+	[ $1 -eq  10 ] && return 0
+	[ $1 -eq 192 ] && [ $2 -eq 168 ] && return 0
+	[ $1 -eq 172 ] && [ $2 -ge  16 ] && [ $2 -le  31 ] && return 0
+	return 1
 }
 
-coldplug_interface_6to4() {
-	setup_interface_6to4 "6to4-$1" "$1"
+set_6to4_radvd_interface() {
+	local cfgid="$1"
+	local lanif="${2:-lan}"
+	local ifmtu="${3:-1280}"
+	local ifsection=""
+
+	find_ifsection() {
+		local net
+		local cfg="$1"
+		config_get net "$cfg" interface
+
+		[ "$net" = "$lanif" ] && {
+			ifsection="$cfg"
+			return 1
+		}
+	}
+
+	config_foreach find_ifsection interface
+
+	[ -z "$ifsection" ] && {
+		ifsection="iface_$sid"
+		uci_set_state radvd "$ifsection" "" interface
+		uci_set_state radvd "$ifsection" interface "$lanif"
+	}
+
+	uci_set_state radvd "$ifsection" ignore            0
+	uci_set_state radvd "$ifsection" IgnoreIfMissing   1
+	uci_set_state radvd "$ifsection" AdvSendAdvert     1
+	uci_set_state radvd "$ifsection" MaxRtrAdvInterval 30
+	uci_set_state radvd "$ifsection" AdvLinkMTU        "$ifmtu"
 }
 
-setup_interface_6to4() {
-	local iface="$1"
-	local cfg="$2"
-	local link="6to4-$cfg"
+set_6to4_radvd_prefix() {
+	local cfgid="$1"
+	local lanif="${2:-lan}"
+	local wanif="${3:-wan}"
+	local prefix="${4:-0:0:0:1::/64}"
+	local vlt="${5:-300}"
+	local plt="${6:-120}"
+	local pfxsection=""
+
+	find_pfxsection() {
+		local net base
+		local cfg="$1"
+		config_get net  "$cfg" interface
+		config_get base "$cfg" Base6to4Interface
+
+		[ "$net" = "$lanif" ] && [ "$base" = "$wanif" ] && {
+			pfxsection="$cfg"
+			return 1
+		}
+	}
+
+	config_foreach find_pfxsection prefix
+
+	[ -z "$pfxsection" ] && {
+		pfxsection="prefix_${sid}_${lanif}"
+		uci_set_state radvd "$pfxsection" ""                   prefix
+		uci_set_state radvd "$pfxsection" ignore               0
+		uci_set_state radvd "$pfxsection" interface            "$lanif"
+		uci_set_state radvd "$pfxsection" prefix               "$prefix"
+		uci_set_state radvd "$pfxsection" AdvOnLink            1
+		uci_set_state radvd "$pfxsection" AdvAutonomous        1
+		uci_set_state radvd "$pfxsection" AdvValidLifetime     "$vlt"
+		uci_set_state radvd "$pfxsection" AdvPreferredLifetime "$plt"
+		uci_set_state radvd "$pfxsection" Base6to4Interface    "$wanif"
+	}
+}
+
+tun_error() {
+	local cfg="$1"; shift;
 
-	local local4=$(uci_get network "$cfg" ipaddr)
+	[ -n "$1" ] && proto_notify_error "$cfg" "$@"
+	proto_block_restart "$cfg"
+}
 
-	local mtu
-	config_get mtu "$cfg" mtu
+proto_6to4_setup() {
+	local cfg="$1"
+	local iface="$2"
+	local link="6to4-$cfg"
 
-	local ttl
-	config_get ttl "$cfg" ttl
+	json_get_var mtu mtu
+	json_get_var ttl ttl
+	json_get_var local4 ipaddr
 
-	local defaultroute
-	config_get_bool defaultroute "$cfg" defaultroute 1
+	json_get_var adv_subnet adv_subnet
+	json_get_var adv_interface adv_interface
+	json_get_var adv_valid_lifetime adv_valid_lifetime
+	json_get_var adv_preferred_lifetime adv_preferred_lifetime
 
 	local wanif=$(find_6to4_wanif)
 	[ -z "$wanif" ] && {
-		logger -t "$link" "Cannot find wan interface - aborting"
+		tun_error "$cfg" "NO_WAN_LINK"
 		return
 	}
 
-	local wancfg=$(find_config "$wanif")
+	. /lib/network/config.sh
+	local wancfg="$(find_config "$wanif")"
 	[ -z "$wancfg" ] && {
-		logger -t "$link" "Cannot find wan network - aborting"
+		tun_error "$cfg" "NO_WAN_LINK"
 		return
 	}
 
 	# If local4 is unset, guess local IPv4 address from the
 	# interface used by the default route.
 	[ -z "$local4" ] && {
-		[ -n "$wanif" ] && {
-			local4=$(find_6to4_wanip "$wanif")
-			uci_set_state network "$cfg" wan_device "$wanif"
-		}
+		[ -n "$wanif" ] && local4=$(find_6to4_wanip "$wanif")
 	}
 
-	[ -n "$local4" ] && {
-		logger -t "$link" "Starting ..."
+	[ -z "$local4" ] && {
+		tun_error "$cfg" "NO_WAN_LINK"
+		return
+	}
 
-		# creating the tunnel below will trigger a net subsystem event
-		# prevent it from touching or iface by disabling .auto here
-		uci_set_state network "$cfg" ifname $link
-		uci_set_state network "$cfg" auto 0
+	test_6to4_rfc1918 "$local4" && {
+		tun_error "$cfg" "INVALID_LOCAL_ADDRESS"
+		return
+	}
 
-		# find our local prefix
-		local prefix6=$(find_6to4_prefix "$local4")
-		local local6="$prefix6::1/16"
+	# find our local prefix
+	local prefix6=$(find_6to4_prefix "$local4")
+	local local6="$prefix6::1"
 
-		logger -t "$link" " * IPv4 address is $local4"
-		logger -t "$link" " * IPv6 address is $local6"
-		ip tunnel add $link mode sit remote any local $local4 ttl ${ttl:-64}
-		ip link set $link up
-		ip link set mtu ${mtu:-1280} dev $link
-		ip addr add $local6 dev $link
+	proto_init_update "$link" 1
+	proto_add_ipv6_address "$local6" 16
+	proto_add_ipv6_route "::" 0 "::192.88.99.1"
 
-		uci_set_state network "$cfg" ipaddr $local4
-		uci_set_state network "$cfg" ip6addr $local6
+	proto_add_tunnel
+	json_add_string mode sit
+	json_add_int mtu "${mtu:-1280}"
+	json_add_int ttl "${ttl:-64}"
+	json_add_string local "$local4"
+	proto_close_tunnel
 
-		[ "$defaultroute" = 1 ] && {
-			logger -t "$link" " * Adding default route"
-			ip -6 route add 2000::/3 via ::192.88.99.1 dev $link metric 1
-			uci_set_state network "$cfg" defaultroute 1
-		}
+	proto_send_update "$cfg"
+
+	[ -f /etc/config/radvd ] && /etc/init.d/radvd enabled && {
+		local sid="6to4_$cfg"
+
+		uci_revert_state radvd
+		config_load radvd
+
+		adv_subnet=$((0x${adv_subnet:-1}))
 
-		# find delegation target
-		local adv_interface
-		config_get adv_interface "$cfg" adv_interface
-
-		local adv_ifname
-		config_get adv_ifname "${adv_interface:-lan}" ifname
-
-		local adv_subnet=$(uci_get network "$cfg" adv_subnet)
-
-		grep -qs "^ *$adv_ifname:" /proc/net/dev && {
-			local subnet6="$prefix6:${adv_subnet:-1}::1/64"
-
-			logger -t "$link" " * Advertising IPv6 subnet $subnet6 on ${adv_interface:-lan} ($adv_ifname)"
-			ip -6 addr add $subnet6 dev $adv_ifname
-			uci_set_state network "$cfg" adv_subnet "$subnet6"
-			uci_set_state network "$cfg" adv_ifname "$adv_ifname"
-
-			[ -f /etc/config/radvd ] && /etc/init.d/radvd enabled && {
-				local sid="6to4_$cfg"
-
-				uci -q batch <<-EOF
-					delete radvd.iface_$sid
-					delete radvd.prefix_$sid
-					set radvd.iface_$sid=interface
-					set radvd.iface_$sid.ignore=0
-					set radvd.iface_$sid.interface=${adv_interface:-lan}
-					set radvd.iface_$sid.IgnoreIfMissing=1
-					set radvd.iface_$sid.AdvSendAdvert=1
-					set radvd.iface_$sid.MaxRtrAdvInterval=30
-					set radvd.prefix_$sid=prefix
-					set radvd.prefix_$sid.ignore=0
-					set radvd.prefix_$sid.interface=${adv_interface:-lan}
-					set radvd.prefix_$sid.prefix=0:0:0:${adv_subnet:-1}::/64
-					set radvd.prefix_$sid.AdvOnLink=1
-					set radvd.prefix_$sid.AdvAutonomous=1
-					set radvd.prefix_$sid.AdvValidLifetime=300
-					set radvd.prefix_$sid.AdvPreferredLifetime=120
-					set radvd.prefix_$sid.Base6to4Interface=$wancfg
-				EOF
-
-				/etc/init.d/radvd restart
+		local adv_subnets=""
+
+		for adv_interface in ${adv_interface:-lan}; do
+			local adv_ifname
+			config_get adv_ifname "${adv_interface:-lan}" ifname
+
+			grep -qs "^ *$adv_ifname:" /proc/net/dev && {
+				local subnet6="$(printf "%s:%x::1/64" "$prefix6" $adv_subnet)"
+
+				logger -t "$link" " * Advertising IPv6 subnet $subnet6 on ${adv_interface:-lan} ($adv_ifname)"
+				ip -6 addr add $subnet6 dev $adv_ifname
+
+				set_6to4_radvd_interface "$sid" "$adv_interface" "$mtu"
+				set_6to4_radvd_prefix    "$sid" "$adv_interface" \
+					"$wancfg" "$(printf "0:0:0:%x::/64" $adv_subnet)" \
+					"$adv_valid_lifetime" "$adv_preferred_lifetime"
+
+				adv_subnets="${adv_subnets:+$adv_subnets }$adv_ifname:$subnet6"
+				adv_subnet=$(($adv_subnet + 1))
 			}
-		}
+		done
 
-		logger -t "$link" "... started"
+		uci_set_state network "$cfg" adv_subnets "$adv_subnets"
 
-		env -i ACTION="ifup" INTERFACE="$cfg" DEVICE="$link" PROTO=6to4 /sbin/hotplug-call "iface" &
-	} || {
-		echo "Cannot determine local IPv4 address for 6to4 tunnel $cfg - skipping"
+		/etc/init.d/radvd restart
 	}
 }
 
-stop_interface_6to4() {
+proto_6to4_teardown() {
 	local cfg="$1"
 	local link="6to4-$cfg"
 
-	local local6=$(uci_get_state network "$cfg" ip6addr)
-	local defaultroute=$(uci_get_state network "$cfg" defaultroute)
-
-	local adv_subnet=$(uci_get_state network "$cfg" adv_subnet)
-	local adv_ifname=$(uci_get_state network "$cfg" adv_ifname)
+	local adv_subnets=$(uci_get_state network "$cfg" adv_subnets)
 
 	grep -qs "^ *$link:" /proc/net/dev && {
-		logger -t "$link" "Shutting down ..."
-		env -i ACTION="ifdown" INTERFACE="$cfg" DEVICE="$link" PROTO=6to4 /sbin/hotplug-call "iface" &
-
-		[ -n "$adv_subnet" ] && [ -n "$adv_ifname" ] && {
-			local sid="6to4_$cfg"
-
-			uci -q batch <<-EOF
-				delete radvd.iface_$sid
-				delete radvd.prefix_$sid
-			EOF
-
+		[ -n "$adv_subnets" ] && {
+			uci_revert_state radvd
 			/etc/init.d/radvd enabled && /etc/init.d/radvd restart
-
-			ip -6 addr del $adv_subnet dev $adv_ifname
-		}
-
-		[ "$defaultroute" = "1" ] && {
-			ip -6 route del 2000::/3 via ::192.88.99.1 dev $link metric 1
 		}
+	}
+}
 
-		ip addr del $local6 dev $link
-		ip link set $link down
-		ip tunnel del $link
+proto_6to4_init_config() {
+	no_device=1             
+	available=1
+
+	proto_config_add_string "ipaddr"
+	proto_config_add_int "mtu"
+	proto_config_add_int "ttl"
+	proto_config_add_string "adv_interface"
+	proto_config_add_string "adv_subnet"
+	proto_config_add_int "adv_valid_lifetime"
+	proto_config_add_int "adv_preferred_lifetime"
+}
 
-		logger -t "$link" "... stopped"
-	}
+[ -n "$INCLUDE_ONLY" ] || {
+	add_protocol 6to4
 }