new: add makefile for open wrt

wrt/files/hiddify-core.init

@@ -0,0 +1,39 @@
+#!/bin/sh /etc/rc.common
+
+USE_PROCD=1
+START=99
+
+NAME="hiddify-core"
+PROG="/usr/bin/hiddify-core"
+
+start_service() {
+	config_load "$NAME"
+
+	local enabled user group conffile workdir
+	config_get_bool enabled "main" "enabled" "0"
+	[ "$enabled" -eq "1" ] || return 0
+
+	config_get user "main" "user" "root"
+	config_get conffile "main" "conffile"
+	config_get workdir "main" "workdir" "/usr/share/hiddify-core"
+
+	mkdir -p "$workdir"
+	local group="$(id -ng $user)"
+	chown $user:$group "$workdir"
+
+	procd_open_instance "$NAME.main"
+	procd_set_param command "$PROG" run -c "$conffile" -D "$workdir"
+
+	# Use root user if you want to use the TUN mode.
+	procd_set_param user "$user"
+	procd_set_param file "$conffile"
+	procd_set_param stdout 1
+	procd_set_param stderr 1
+	procd_set_param respawn
+
+	procd_close_instance
+}
+
+service_triggers() {
+	procd_add_reload_trigger "$NAME"
+}