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Diffstat (limited to 'package/network/ipv6/6in4/files/6in4.sh')
| -rwxr-xr-x | package/network/ipv6/6in4/files/6in4.sh | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/package/network/ipv6/6in4/files/6in4.sh b/package/network/ipv6/6in4/files/6in4.sh new file mode 100755 index 0000000..59747a3 --- /dev/null +++ b/package/network/ipv6/6in4/files/6in4.sh @@ -0,0 +1,156 @@ +#!/bin/sh +# 6in4.sh - IPv6-in-IPv4 tunnel backend +# Copyright (c) 2010-2015 OpenWrt.org + +[ -n "$INCLUDE_ONLY" ] || { + . /lib/functions.sh + . /lib/functions/network.sh + . ../netifd-proto.sh + init_proto "$@" +} + +proto_6in4_update() { + sh -c ' + local timeout=5 + + (while [ $((timeout--)) -gt 0 ]; do + sleep 1 + kill -0 $$ || exit 0 + done; kill -9 $$) 2>/dev/null & + + exec "$@" + ' "$1" "$@" +} + +proto_6in4_setup() { + local cfg="$1" + local iface="$2" + local link="6in4-$cfg" + + local mtu ttl tos ipaddr peeraddr ip6addr ip6prefix tunlink tunnelid username password updatekey + json_get_vars mtu ttl tos ipaddr peeraddr ip6addr ip6prefix tunlink tunnelid username password updatekey + + [ -z "$peeraddr" ] && { + proto_notify_error "$cfg" "MISSING_ADDRESS" + proto_block_restart "$cfg" + return + } + + ( proto_add_host_dependency "$cfg" "$peeraddr" "$tunlink" ) + + [ -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" + } + + [ -n "$ip6prefix" ] && { + proto_add_ipv6_prefix "$ip6prefix" + proto_add_ipv6_route "::" 0 "" "" "" "$ip6prefix" + } + + proto_add_tunnel + json_add_string mode sit + json_add_int mtu "${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="wget" + local urlget_opts="-qO-" + local ca_path="${SSL_CERT_DIR-/etc/ssl/certs}" + + if [ -n "$(which curl)" ]; then + urlget="curl" + urlget_opts="-s -S" + if curl -V | grep "Protocols:" | grep -qF "https"; then + http="https" + urlget_opts="$urlget_opts --capath $ca_path" + fi + fi + if [ "$http" = "http" ] && + wget --version 2>&1 | grep -qF "+https"; then + urlget="wget" + urlget_opts="-qO- --ca-directory=$ca_path" + http="https" + fi + [ "$http" = "https" -a -z "$(find $ca_path -name "*.0" 2>/dev/null)" ] && { + if [ "$urlget" = "curl" ]; then + urlget_opts="$urlget_opts -k" + else + urlget_opts="$urlget_opts --no-check-certificate" + fi + } + + local url="$http://ipv4.tunnelbroker.net/nic/update?username=$username&password=$password&hostname=$tunnelid" + local try=0 + local max=3 + + ( + set -o pipefail + while [ $((++try)) -le $max ]; do + if proto_6in4_update $urlget $urlget_opts "$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="$1" +} + +proto_6in4_init_config() { + no_device=1 + available=1 + + proto_config_add_string "ipaddr" + proto_config_add_string "ip6addr" + proto_config_add_string "ip6prefix" + proto_config_add_string "peeraddr" + proto_config_add_string "tunlink" + proto_config_add_string "tunnelid" + proto_config_add_string "username" + proto_config_add_string "password" + proto_config_add_string "updatekey" + proto_config_add_int "mtu" + proto_config_add_int "ttl" + proto_config_add_string "tos" +} + +[ -n "$INCLUDE_ONLY" ] || { + add_protocol 6in4 +} |