ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/package/network/ipv6/6in4/files/6in4.sh b/package/network/ipv6/6in4/files/6in4.sh
new file mode 100755
index 0000000..dd055ec
--- /dev/null
+++ b/package/network/ipv6/6in4/files/6in4.sh
@@ -0,0 +1,182 @@
+#!/bin/sh
+# 6in4.sh - IPv6-in-IPv4 tunnel backend
+# Copyright (c) 2010-2015 OpenWrt.org
+
+[ -n "$INCLUDE_ONLY" ] || {
+ . /lib/functions.sh
+ . /lib/functions/network.sh
+ . ../netifd-proto.sh
+ init_proto "$@"
+}
+
+# Function taken from 6to4 package (6to4.sh), flipped returns
+test_6in4_rfc1918()
+{
+ local oIFS="$IFS"; IFS="."; set -- $1; IFS="$oIFS"
+ [ $1 -eq 10 ] && return 1
+ [ $1 -eq 192 ] && [ $2 -eq 168 ] && return 1
+ [ $1 -eq 172 ] && [ $2 -ge 16 ] && [ $2 -le 31 ] && return 1
+
+ # RFC 6598
+ [ $1 -eq 100 ] && [ $2 -ge 64 ] && [ $2 -le 127 ] && return 1
+
+ return 0
+}
+
+proto_6in4_update() {
+ sh -c '
+ timeout=5
+
+ (while [ $((timeout--)) -gt 0 ]; do
+ sleep 1
+ kill -0 $$ || exit 0
+ done; kill -9 $$) 2>/dev/null &
+
+ exec "$@"
+ ' "$1" "$@"
+}
+
+proto_6in4_add_prefix() {
+ append "$3" "$1"
+}
+
+proto_6in4_setup() {
+ local cfg="$1"
+ local iface="$2"
+ local link="6in4-$cfg"
+ local remoteip
+
+ local mtu ttl tos ipaddr peeraddr ip6addr ip6prefix ip6prefixes tunlink tunnelid username password updatekey device nohostroute
+ json_get_vars mtu ttl tos ipaddr peeraddr ip6addr tunlink tunnelid username password updatekey device nohostroute
+ json_for_each_item proto_6in4_add_prefix ip6prefix ip6prefixes
+
+ [ -n "$device" ] && link="$device"
+
+ [ -z "$peeraddr" ] && {
+ proto_notify_error "$cfg" "MISSING_PEER_ADDRESS"
+ proto_block_restart "$cfg"
+ return
+ }
+
+ remoteip=$(resolveip -t 10 -4 "$peeraddr")
+
+ if [ -z "$remoteip" ]; then
+ proto_notify_error "$cfg" "PEER_RESOLVE_FAIL"
+ return
+ 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"
+ return
+ fi
+
+ if ! network_get_ipaddr ipaddr "$wanif"; then
+ proto_notify_error "$cfg" "NO_WAN_LINK"
+ return
+ fi
+ }
+
+ proto_init_update "$link" 1
+
+ [ -n "$ip6addr" ] && {
+ local local6="${ip6addr%%/*}"
+ local mask6="${ip6addr##*/}"
+ [ "$local6" = "$mask6" ] && mask6=
+ proto_add_ipv6_address "$local6" "$mask6"
+ proto_add_ipv6_route "::" 0 "" "" "" "$local6/$mask6"
+ }
+
+ for ip6prefix in $ip6prefixes; do
+ proto_add_ipv6_prefix "$ip6prefix"
+ proto_add_ipv6_route "::" 0 "" "" "" "$ip6prefix"
+ done
+
+ proto_add_tunnel
+ json_add_string mode sit
+ json_add_int mtu "${mtu:-1280}"
+ json_add_int ttl "${ttl:-64}"
+ [ -n "$tos" ] && json_add_string tos "$tos"
+ json_add_string local "$ipaddr"
+ json_add_string remote "$peeraddr"
+ [ -n "$tunlink" ] && json_add_string link "$tunlink"
+ proto_close_tunnel
+
+ proto_send_update "$cfg"
+
+ [ -n "$tunnelid" -a -n "$username" -a \( -n "$password" -o -n "$updatekey" \) ] && {
+ [ -n "$updatekey" ] && password="$updatekey"
+
+ local http="http"
+ local urlget="uclient-fetch"
+ local urlget_opts="-qO-"
+ local ca_path="${SSL_CERT_DIR:-/etc/ssl/certs}"
+
+ [ -f /lib/libustream-ssl.so ] && http=https
+ [ "$http" = "https" -a -z "$(find $ca_path -name "*.0" 2>/dev/null)" ] && {
+ urlget_opts="$urlget_opts --no-check-certificate"
+ }
+
+ local url="$http://ipv4.tunnelbroker.net/nic/update?hostname=$tunnelid"
+
+ test_6in4_rfc1918 "$ipaddr" && {
+ local url="${url}&myip=${ipaddr}"
+ }
+
+ local try=0
+ local max=3
+
+ (
+ set -o pipefail
+ while [ $((++try)) -le $max ]; do
+ if proto_6in4_update $urlget $urlget_opts --user="$username" --password="$password" "$url" 2>&1 | \
+ sed -e 's,^Killed$,timeout,' -e "s,^,update $try/$max: ," | \
+ logger -t "$link";
+ then
+ logger -t "$link" "updated"
+ return 0
+ fi
+ sleep 5
+ done
+ logger -t "$link" "update failed"
+ )
+ }
+}
+
+proto_6in4_teardown() {
+ local cfg="$1"
+}
+
+proto_6in4_init_config() {
+ no_device=1
+ available=1
+
+ proto_config_add_string "ipaddr"
+ proto_config_add_string "ip6addr"
+ proto_config_add_array "ip6prefix"
+ proto_config_add_string "peeraddr"
+ proto_config_add_string "tunlink"
+ proto_config_add_string "tunnelid"
+ proto_config_add_string "username"
+ proto_config_add_string "password"
+ proto_config_add_string "updatekey"
+ proto_config_add_int "mtu"
+ proto_config_add_int "ttl"
+ proto_config_add_string "tos"
+ proto_config_add_string "device"
+ proto_config_add_boolean "nohostroute"
+}
+
+[ -n "$INCLUDE_ONLY" ] || {
+ add_protocol 6in4
+}