wireguard: bump to 20191226

[openwrt/staging/dedeckeh.git] / package / network / services / wireguard / files / wireguard_watchdog

diff --git a/package/network/services/wireguard/files/wireguard_watchdog b/package/network/services/wireguard/files/wireguard_watchdog
deleted file mode 100644 (file)
index 5fbbeaf..0000000
--- a/package/network/services/wireguard/files/wireguard_watchdog
+++ /dev/null
@@ -1,60 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-#
-# Copyright (C) 2018 Aleksandr V. Piskunov <aleksandr.v.piskunov@gmail.com>.
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
-#
-# This watchdog script tries to re-resolve hostnames for inactive WireGuard peers.
-# Use it for peers with a frequently changing dynamic IP.
-# persistent_keepalive must be set, recommended value is 25 seconds.
-#
-# Run this script from cron every minute:
-# echo '* * * * * /usr/bin/wireguard_watchdog' >> /etc/crontabs/root
-
-
-. /lib/functions.sh
-
-check_peer_activity() {
-  local cfg=$1
-  local iface=$2
-  local public_key
-  local endpoint_host
-  local endpoint_port
-  local persistent_keepalive
-  local last_handshake
-  local idle_seconds
-
-  config_get public_key "${cfg}" "public_key"
-  config_get endpoint_host "${cfg}" "endpoint_host"
-  config_get endpoint_port "${cfg}" "endpoint_port"
-  persistent_keepalive=`wg show ${iface} persistent-keepalive | grep ${public_key} | awk '{print $2}'`
-
-  # only process peers with endpoints and keepalive set
-  [ -z ${endpoint_host} ] && return 0;
-  [ -z ${persistent_keepalive} -o ${persistent_keepalive} = "off" ] && return 0;
-
-  # skip IP addresses
-  # check taken from packages/net/ddns-scripts/files/dynamic_dns_functions.sh
-  local IPV4_REGEX="[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}"
-  local IPV6_REGEX="\(\([0-9A-Fa-f]\{1,4\}:\)\{1,\}\)\(\([0-9A-Fa-f]\{1,4\}\)\{0,1\}\)\(\(:[0-9A-Fa-f]\{1,4\}\)\{1,\}\)"
-  local IPV4=$(echo ${endpoint_host} | grep -m 1 -o "$IPV4_REGEX$")    # do not detect ip in 0.0.0.0.example.com
-  local IPV6=$(echo ${endpoint_host} | grep -m 1 -o "$IPV6_REGEX")
-  [ -n "${IPV4}" -o -n "${IPV6}" ] && return 0;
-
-  # re-resolve endpoint hostname if not responding for too long
-  last_handshake=`wg show ${iface} latest-handshakes | grep ${public_key} | awk '{print $2}'`
-  [ -z ${last_handshake} ] && return 0;
-  idle_seconds=$((`date +%s`-${last_handshake}))
-  [ ${idle_seconds} -lt 150 ] && return 0;
-  logger -t "wireguard_monitor" "${iface} endpoint ${endpoint_host}:${endpoint_port} is not responding for ${idle_seconds} seconds, trying to re-resolve hostname"
-  wg set ${iface} peer ${public_key} endpoint "${endpoint_host}:${endpoint_port}"
-}
-
-# query ubus for all active wireguard interfaces
-wg_ifaces=`ubus -S call network.interface dump | jsonfilter -e '@.interface[@.up=true]' | jsonfilter -a -e '@[@.proto="wireguard"].interface' | tr "\n" " "`
-
-# check every peer in every active wireguard interface
-config_load network
-for iface in $wg_ifaces; do
-  config_foreach check_peer_activity "wireguard_${iface}" "${iface}"
-done