owfs: Add init scripts and config files

Owfs daemons lack control scripts. This patch adds init.d scripts for owfs,
owserver, owhttpd and owftpd packages.
Most daemon options (both common libow and program-specific parameters)
are reflected as uci config variables.

Signed-off-by: Marcin Jurkowski <marcin1j@gmail.com>

utils/owfs/files/owserver.init

@@ -0,0 +1,70 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2009-2012 OpenWrt.org
+
+START=98
+
+SERVICE_WRITE_PID=1
+SERVICE_DAEMONIZE=1
+
+DEFAULT_SERVICE_UID=65534
+DEFAULT_SERVICE_GID=65534
+
+append_device() {
+	append devices "$1"
+}
+
+
+start_owfs_daemon() {
+	local program="$1"
+	local config="$1"
+	local args="--foreground --error_print=1 $2"
+
+
+	local enabled
+	config_get_bool enabled "$config" enabled 0
+	[ "${enabled}" -eq 0 ] && return 1
+
+	local readonly
+	config_get_bool readonly "$config" readonly 0
+	[ "${readonly}" -eq 1 ] && append args "--readonly"
+
+	local error_level
+	config_get error_level "$config" error_level
+	[ -n "${error_level}" ] && append args "--error_level=${error_level}"
+
+	local options
+	config_get options "$config" options
+
+	devices=""
+	config_list_foreach "$config" devices append_device
+
+	config_get SERVICE_UID "$config" uid "$DEFAULT_SERVICE_UID"
+	config_get SERVICE_GID "$config" gid "$DEFAULT_SERVICE_GID"
+
+	service_start "/usr/bin/$program" $args $options $devices
+}
+
+start_owserver() {
+	local config="owserver"
+	local args=""
+
+	config_load "$config"
+
+	local port
+	config_get port "$config" port
+	[ -n "${port}" ] && append args "--port=${port}"
+
+	local max_connections
+	config_get max_connections "$config" max_connections
+	[ -n "${max_connections}" ] && append args "--max_connections=${max_connections}"
+
+	start_owfs_daemon "$config" "$args"
+}
+
+start() {
+	start_owserver
+}
+
+stop() {
+	service_stop /usr/bin/owserver
+}