#!/bin/sh /etc/rc.common
# Copyright (C) 2007-2011 OpenWrt.org

USE_PROCD=1
START=80

start_instance() {
	local section="$1"
	local forwarding

	config_get_bool enabled     "$section" enabled 1
	[ "$enabled" != "1" ] && return 0

	config_get ssh              "$section" ssh
	if [ -z "$ssh" ]; then
		echo "autossh: ssh option is required"
		return 1
	fi

	config_get localhost       "$section" localhost localhost
	config_get localport       "$section" localport
	config_get remotehost      "$section" remotehost
	config_get remoteport      "$section" remoteport
	config_get monitorport     "$section" monitorport 20000
	config_get poll            "$section" poll 600
	config_get gatetime        "$section" gatetime 30
	config_get first_poll      "$section" first_poll 
	config_get loglevel        "$section" loglevel
	config_get logfile         "$section" logfile
	config_get maxlifetime     "$section" maxlifetime
	config_get maxstart        "$section" maxstart
	config_get message         "$section" message
	config_get_bool ntservice  "$section" ntservice 0
	config_get path            "$section" path
	config_get pidfile         "$section" pidfile

	if [ -n "$localport" ] && [ -n "$remoteport" ]; then
		if [ -n "$remotehost" ]; then
			forwarding="-L ${localport}:${remotehost}:${remoteport}"
		else
			forwarding="-R ${remoteport}:${localhost}:${localport}"
		fi
	elif [ -n "$localport" ] || [ -n "$remoteport" ]; then
		echo "autossh: both localport and remoteport options are required"
		return 1
	fi

	procd_open_instance "$section"
	procd_set_param command /usr/sbin/autossh ${forwarding} ${ssh}
	procd_set_param respawn ${respawn_threshold:-3600} ${respawn_timeout:-5} ${respawn_retry:-5}
	[ -n "$pidfile" ] && procd_set_param pidfile "$pidfile"

	[ -n "$monitorport" ] && procd_append_param env "AUTOSSH_PORT=$monitorport"
	[ -n "$poll" ] && procd_append_param env "AUTOSSH_POLL=$poll"
	[ -n "$gatetime" ] && procd_append_param env "AUTOSSH_GATETIME=$gatetime"
	[ -n "$first_poll" ] && procd_append_param env "AUTOSSH_FIRST_POLL=$first_poll"
	[ -n "$loglevel" ] && procd_append_param env "AUTOSSH_LOGLEVEL=$loglevel"
	[ -n "$logfile" ] && procd_append_param env "AUTOSSH_LOGFILE=$logfile"
	[ -n "$maxlifetime" ] && procd_append_param env "AUTOSSH_MAXLIFETIME=$maxlifetime"
	[ -n "$maxstart" ] && procd_append_param env "AUTOSSH_MAXSTART=$maxstart"
	[ -n "$message" ] && procd_append_param env "AUTOSSH_MESSAGE=$message"
	[ "$ntservice" == "1" ] && procd_append_param env "AUTOSSH_NTSERVICE=yes"
	[ -n "$path" ] && procd_append_param env "AUTOSSH_PATH=$path"
	[ -n "$pidfile" ] && procd_append_param env "AUTOSSH_PIDFILE=$pidfile"

	procd_close_instance
}

start_service() {
	local instance=$1

	config_load 'autossh'

	if [ -n "$instance" ]; then
		start_instance "$1"
	else
		config_foreach start_instance 'autossh'
	fi
}