Add GRE tracker

omr-tracker/files/bin/omr-tracker-gre

@@ -0,0 +1,46 @@
+#!/bin/sh
+# vim: set noexpandtab tabstop=4 shiftwidth=4 softtabstop=4 :
+
+name=$0
+basename="$(basename $0)"
+
+_log() {
+	logger -p daemon.info -t "${basename}" "$@"
+}
+
+_ping_server() {
+	local host=$1
+	ret=$(ping \
+	    -w "$OMR_TRACKER_TIMEOUT" \
+	    -c 1 \
+	    -q \
+	    "${host}"
+	) && echo "$ret" | grep -sq " 0% packet loss" && {
+		server_ping=true
+	}
+}
+
+_ping_tunnel() {
+	local name=$1
+	config_get gateway $1 gateway
+	config_get ifname $1 ifname
+	config_get disabled $1 disabled
+	[ "$(echo $ifname | grep omrip)" != "" ] && [ -n "$gateway" ] && [ "$disabled" != "1" ] && {
+		_ping_server $gateway
+	}
+}
+
+. /lib/functions.sh
+
+timeout=${OMR_TRACKER_TIMEOUT:-5}
+interval=${OMR_TRACKER_INTERVAL:-10}
+intervaltries=${OMR_TRACKER_INTERVAL_TRIES:-2}
+retry=${OMR_TRACKER_TRIES:-4}
+waittest=${OMR_TRACKER_WAIT_TEST:-0}
+
+while true; do
+	server_ping=false
+	config_load network
+	config_foreach _ping_tunnel interface
+	sleep "${interval}"
+done

omr-tracker/files/etc/init.d/omr-tracker

@@ -103,6 +103,28 @@ _launch_server_tracker() {
 	procd_close_instance
 }
 
+_launch_gre_tracker() {
+	local hosts timeout tries interval interval_tries options type enabled wait_test
+	_validate_section "defaults" "defaults"
+	_validate_section "gre" "gre"
+
+	[ "${enabled}" = "0" ] && return
+	[ -z "${interval_tries}" ] && interval_tries=1
+
+	procd_open_instance
+	# shellcheck disable=SC2086
+	procd_set_param command /bin/omr-tracker-gre "$1" $options
+	procd_append_param env "OMR_TRACKER_TIMEOUT=$timeout"
+	procd_append_param env "OMR_TRACKER_TRIES=$tries"
+	procd_append_param env "OMR_TRACKER_INTERVAL=$interval"
+	procd_append_param env "OMR_TRACKER_INTERVAL_TRIES=$interval_tries"
+	procd_append_param env "OMR_TRACKER_WAIT_TEST=$wait_test"
+	procd_set_param limits nofile="51200 51200"
+	procd_set_param respawn 0 10 0
+	procd_set_param stderr 1
+	procd_close_instance
+}
+
 _initialize_shadowsocks_tracker() {
 	local redir_tcp server tracker_server
 	config_get redir_tcp ss_rules redir_tcp
@@ -199,6 +221,11 @@ _multi_server() {
 	[ "$backup" = "1" ] && multiserver=true
 }
 
+_gre_tunnel() {
+	config_get proto $1 proto
+	[ "$proto" = "gre" ] && gretunnel=true
+}
+
 start_service() {
 	local ss_disabled
 	logger -t "omr-tracker" "Launching..."
@@ -224,6 +251,10 @@ start_service() {
 	config_load openmptcprouter
 	config_foreach _multi_server server
 	[ "$multiserver" = true ] && _launch_server_tracker
+	gretunnel=false
+	config_load network
+	config_foreach _gre_tunnel interface
+	[ "$gretunnel" = true ] && _launch_gre_tracker
 	logger -t "omr-tracker" "Launched"
 }