#!/usr/bin/python
#
# P2P autonomous GO test cases
# Copyright (c) 2013, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.

import time
import subprocess
import logging
logger = logging.getLogger(__name__)

import hwsim_utils

def autogo(go):
    logger.info("Start autonomous GO " + go.ifname)
    res = go.p2p_start_go()
    logger.debug("res: " + str(res))

def connect_cli(go, client):
    logger.info("Try to connect the client to the GO")
    pin = client.wps_read_pin()
    go.p2p_go_authorize_client(pin)
    client.p2p_connect_group(go.p2p_dev_addr(), pin, timeout=60)
    logger.info("Client connected")
    hwsim_utils.test_connectivity_p2p(go, client)

def test_autogo(dev):
    autogo(dev[0])
    connect_cli(dev[0], dev[1])
    dev[0].remove_group()
    try:
        dev[1].remove_group()
    except:
        pass

def test_autogo_2cli(dev):
    autogo(dev[0])
    connect_cli(dev[0], dev[1])
    connect_cli(dev[0], dev[2])
    hwsim_utils.test_connectivity_p2p(dev[1], dev[2])
    dev[2].remove_group()
    dev[1].remove_group()
    dev[0].remove_group()

def wlantest_tdls(field, bssid, addr1, addr2):
    res = subprocess.check_output(["../../wlantest/wlantest_cli",
                                   "get_tdls_counter", field, bssid, addr1,
                                   addr2]);
    if "FAIL" in res:
        raise Exception("wlantest_cli command failed")
    return int(res)

def wlantest_tdls_clear(bssid, addr1, addr2):
    subprocess.call(["../../wlantest/wlantest_cli",
                     "clear_tdls_counters", bssid, addr1, addr2]);

def test_autogo_tdls(dev):
    go = dev[0]
    logger.info("Start autonomous GO with fixed parameters " + go.ifname)
    id = go.add_network()
    go.set_network_quoted(id, "ssid", "DIRECT-tdls")
    go.set_network_quoted(id, "psk", "12345678")
    go.set_network(id, "mode", "3")
    go.set_network(id, "disabled", "2")
    res = go.p2p_start_go(persistent=id)
    logger.debug("res: " + str(res))
    subprocess.call(["../../wlantest/wlantest_cli", "flush"]);
    subprocess.call(["../../wlantest/wlantest_cli", "add_passphrase",
                     "12345678"]);
    connect_cli(go, dev[1])
    connect_cli(go, dev[2])
    hwsim_utils.test_connectivity_p2p(dev[1], dev[2])
    bssid = dev[0].p2p_interface_addr()
    addr1 = dev[1].p2p_interface_addr()
    addr2 = dev[2].p2p_interface_addr()
    dev[1].tdls_setup(addr2)
    time.sleep(1)
    hwsim_utils.test_connectivity_p2p(dev[1], dev[2])
    conf = wlantest_tdls("setup_conf_ok", bssid, addr1, addr2);
    if conf == 0:
        raise Exception("No TDLS Setup Confirm (success) seen")
    dl = wlantest_tdls("valid_direct_link", bssid, addr1, addr2);
    if dl == 0:
        raise Exception("No valid frames through direct link")
    wlantest_tdls_clear(bssid, addr1, addr2);
    dev[1].tdls_teardown(addr2)
    time.sleep(1)
    teardown = wlantest_tdls("teardown", bssid, addr1, addr2);
    if conf == teardown:
        raise Exception("No TDLS Setup Teardown seen")
    wlantest_tdls_clear(bssid, addr1, addr2);
    hwsim_utils.test_connectivity_p2p(dev[1], dev[2])
    ap_path = wlantest_tdls("valid_ap_path", bssid, addr1, addr2);
    if ap_path == 0:
        raise Exception("No valid frames via AP path")
    direct_link = wlantest_tdls("valid_direct_link", bssid, addr1, addr2);
    if direct_link > 0:
        raise Exception("Unexpected frames through direct link")
    idirect_link = wlantest_tdls("invalid_direct_link", bssid, addr1, addr2);
    if idirect_link > 0:
        raise Exception("Unexpected frames through direct link (invalid)")
    dev[2].remove_group()
    dev[1].remove_group()
    dev[0].remove_group()

def add_tests(tests):
    tests.append(test_autogo)
    tests.append(test_autogo_2cli)
    tests.append(test_autogo_tdls)
