#!/bin/sh

# Copyright (C) 2006 - 2009 Debian/Ubuntu wpasupplicant Maintainers 
# <pkg-wpa-devel@lists.alioth.debian.org>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# On Debian GNU/Linux systems, the text of the GPL license,
# version 2, can be found in /usr/share/common-licenses/GPL-2.

if [ -n "$IF_WPA_ROAM_MAINT_DEBUG" ]; then
	set -x
fi

if [ -z "$1" ] || [ -z "$2" ]; then
	echo "Usage: $0 IFACE ACTION"
	exit 1
fi

# network interface
WPA_IFACE="$1"
# [CONNECTED|DISCONNECTED|stop|reload|check]
WPA_ACTION="$2"

if [ -f /etc/wpa_supplicant/functions.sh ]; then
	. /etc/wpa_supplicant/functions.sh
else
	exit 0
fi

case "$WPA_ACTION" in
	"CONNECTED")
		wpa_log_env
		wpa_hysteresis_check || exit 1
		wpa_hysteresis_event
		if ifup; then
			wpa_cli status | wpa_msg log
		else
			wpa_cli status | wpa_msg log
			wpa_cli reassociate
		fi
		;;

	"DISCONNECTED")
		wpa_log_env
		wpa_hysteresis_check || exit 1
		ifdown
		if_post_down_up
		;;

	"stop"|"down")
		test_wpa_cli && kill_wpa_cli
		ifdown
		test_wpa_supplicant && kill_wpa_supplicant
		;;

	"restart"|"reload")
		test_wpa_supplicant || exit 1
		reload_wpa_supplicant
		;;
	
	"check")
		test_wpa_supplicant || exit 1
		test_wpa_cli || exit 1
		;;

	*)
		echo "Unknown action: \"$WPA_ACTION\""
		exit 1
		;;
esac

exit 0