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#!/bin/sh /etc/rc.common
# SPDX-License-Identifier: LGPL-3.0-or-later
#
# Copyright 2019 Hristo Venev

START=50
STOP=50
USE_PROCD=1

handle_interface() {
	local iface="$1"
	local val

	mkdir -p "/tmp/wgconfd/$1" "/tmp/wgconfd/$1/cache"
	procd_open_instance
	procd_set_param env RUNTIME_DIRECTORY="/tmp/wgconfd/$1" CACHE_DIRECTORY="/tmp/wgconfd/$1/cache"
	procd_set_param command /usr/bin/wgconfd "$1" --cmdline

	config_get val "$1" refresh_sec
	[ -n "$val" ] && procd_append_param command refresh_sec "$val"

	config_get val "$1" min_keepalive
	[ -n "$val" ] && procd_append_param command min_keepalive "$val"

	config_get val "$1" max_keepalive
	[ -n "$val" ] && procd_append_param command max_keepalive "$val"

	config_list_foreach "$1" source handle_source

	config_list_foreach "$1" peer handle_peer

	procd_set_param respawn 30 5 5
	procd_set_param stderr 1
	procd_close_instance
}

handle_source() {
	local val
	config_get val "$1" url
	procd_append_param command source "$1" "$val"

	config_get val "$1" psk
	[ -n "$val" ] && procd_append_param command psk "$val"

	config_get_bool val "$1" required 0
	[ "$val" -eq 1 ] && procd_append_param command required

	config_list_foreach "$1" ipv4 handle_source_arg ipv4

	config_list_foreach "$1" ipv6 handle_source_arg ipv6
}

handle_source_arg() {
	procd_append_param command "$2" "$1"
}

handle_peer() {
	local val
	procd_append_param command peer "$1"

	config_get val "$1" psk
	[ -n "$val" ] && procd_append_param command psk "$val"

	config_get val "$1" source
	[ -n "$val" ] && procd_append_param command source "$val"
}

start_service() {
	config_load wgconfd
	config_foreach handle_interface interface
}