# Test cases for SAE-PK
# Copyright (c) 2020, The Linux Foundation
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.

import hostapd
from utils import *

def run_sae_pk(apdev, dev, ssid, pw, m, pk, ap_groups=None):
    params = hostapd.wpa2_params(ssid=ssid)
    params['wpa_key_mgmt'] = 'SAE'
    params['sae_password'] = ['%s|pk=%s:%s' % (pw, m, pk)]
    if ap_groups:
        params['sae_groups'] = ap_groups
    hapd = hostapd.add_ap(apdev, params)
    bssid = hapd.own_addr()

    dev.connect(ssid, sae_password=pw, key_mgmt="SAE", scan_freq="2412")
    bss = dev.get_bss(bssid)
    if 'flags' not in bss:
        raise Exception("Could not get BSS flags from BSS table")
    if "[SAE-H2E]" not in bss['flags'] or "[SAE-PK]" not in bss['flags']:
        raise Exception("Unexpected BSS flags: " + bss['flags'])
    status = dev.get_status()
    if "sae_h2e" not in status or "sae_pk" not in status or \
       status["sae_h2e"] != "1" or status["sae_pk"] != "1":
        raise Exception("SAE-PK or H2E not indicated in STATUS")
    dev.request("REMOVE_NETWORK *")
    dev.wait_disconnected()
    hapd.disable()

def test_sae_pk(dev, apdev):
    """SAE-PK"""
    check_sae_pk_capab(dev[0])
    dev[0].set("sae_groups", "")

    ssid = "SAE-PK test"
    pw = "dwxm-zv66-p5ue-fotp-owjy-lfby-2xpg-vmwq-chtz-hilu-m3t2-qleg"
    m = "431ff8322f93b9dc50ded9f3d14ace22"
    pk = "MHcCAQEEIAJIGlfnteonDb7rQyP/SGQjwzrZAnfrXIm4280VWajYoAoGCCqGSM49AwEHoUQDQgAEeRkstKQV+FSAMqBayqFknn2nAQsdsh/MhdX6tiHOTAFin/sUMFRMyspPtIu7YvlKdsexhI0jPVhaYZn1jKWhZg=="

    for i in range(14, len(pw) + 1):
        p = pw[:i]
        if p.endswith('-'):
            continue
        run_sae_pk(apdev[0], dev[0], ssid, p, m, pk)

def test_sae_pk_group_negotiation(dev, apdev):
    """SAE-PK"""
    check_sae_pk_capab(dev[0])
    dev[0].set("sae_groups", "20 19")

    ssid = "SAE-PK test"
    pw = "dwxm-zv66-p5ue-fotp-owjy-lfby-2xpg-vmwq-chtz-hilu-m3t2-qleg"
    m = "431ff8322f93b9dc50ded9f3d14ace22"
    pk = "MHcCAQEEIAJIGlfnteonDb7rQyP/SGQjwzrZAnfrXIm4280VWajYoAoGCCqGSM49AwEHoUQDQgAEeRkstKQV+FSAMqBayqFknn2nAQsdsh/MhdX6tiHOTAFin/sUMFRMyspPtIu7YvlKdsexhI0jPVhaYZn1jKWhZg=="

    try:
        run_sae_pk(apdev[0], dev[0], ssid, pw, m, pk, ap_groups="19 20")
    finally:
        dev[0].set("sae_groups", "")

def test_sae_pk_sec_2(dev, apdev):
    """SAE-PK with Sec 2"""
    check_sae_pk_capab(dev[0])
    dev[0].set("sae_groups", "")

    ssid = "SAE-PK test"
    pw = "dwxm-zv66-p5ue"
    m = "431ff8322f93b9dc50ded9f3d14ace22"
    pk = "MHcCAQEEIAJIGlfnteonDb7rQyP/SGQjwzrZAnfrXIm4280VWajYoAoGCCqGSM49AwEHoUQDQgAEeRkstKQV+FSAMqBayqFknn2nAQsdsh/MhdX6tiHOTAFin/sUMFRMyspPtIu7YvlKdsexhI0jPVhaYZn1jKWhZg=="

    run_sae_pk(apdev[0], dev[0], ssid, pw, m, pk)

def test_sae_pk_sec_3(dev, apdev):
    """SAE-PK with Sec 3"""
    check_sae_pk_capab(dev[0])
    dev[0].set("sae_groups", "")

    ssid = "SAE-PK test"
    pw = "iian-qey6-pu5t"
    m = "128e51ddb5e2e24388f9ed14b687e2eb"
    pk = "MHcCAQEEIAJIGlfnteonDb7rQyP/SGQjwzrZAnfrXIm4280VWajYoAoGCCqGSM49AwEHoUQDQgAEeRkstKQV+FSAMqBayqFknn2nAQsdsh/MhdX6tiHOTAFin/sUMFRMyspPtIu7YvlKdsexhI0jPVhaYZn1jKWhZg=="

    run_sae_pk(apdev[0], dev[0], ssid, pw, m, pk)

def test_sae_pk_sec_4(dev, apdev):
    """SAE-PK with Sec 4"""
    check_sae_pk_capab(dev[0])
    dev[0].set("sae_groups", "")

    ssid = "SAE-PK test"
    pw = "ssko-2lmu-7hzs-bqct"
    m = "a5e38c7251ea310cc348fbcdadfa8bcb"
    pk = "MHcCAQEEIAJIGlfnteonDb7rQyP/SGQjwzrZAnfrXIm4280VWajYoAoGCCqGSM49AwEHoUQDQgAEeRkstKQV+FSAMqBayqFknn2nAQsdsh/MhdX6tiHOTAFin/sUMFRMyspPtIu7YvlKdsexhI0jPVhaYZn1jKWhZg=="

    run_sae_pk(apdev[0], dev[0], ssid, pw, m, pk)

def test_sae_pk_sec_5(dev, apdev):
    """SAE-PK with Sec 5"""
    check_sae_pk_capab(dev[0])
    dev[0].set("sae_groups", "")

    ssid = "SAE-PK test"
    pw = "3qqu-f4xq-dz37-fes3-fbgc"
    m = "d2e5fa27d1be8897f987f2d480d2af6b"
    pk = "MHcCAQEEIAJIGlfnteonDb7rQyP/SGQjwzrZAnfrXIm4280VWajYoAoGCCqGSM49AwEHoUQDQgAEeRkstKQV+FSAMqBayqFknn2nAQsdsh/MhdX6tiHOTAFin/sUMFRMyspPtIu7YvlKdsexhI0jPVhaYZn1jKWhZg=="

    run_sae_pk(apdev[0], dev[0], ssid, pw, m, pk)

def test_sae_pk_group_20(dev, apdev):
    """SAE-PK with group 20"""
    check_sae_pk_capab(dev[0])
    dev[0].set("sae_groups", "20")

    ssid = "SAE-PK test"
    pw = "f3bh-5un3-wz7o-al3p"
    m = "50bf37ba0033ed110a74e3a7aa52f4e9"
    pk = "MIGkAgEBBDA4wpA6w/fK0g3a2V6QmcoxNoFCVuQPyzWvKYimJkgXsVsXt2ERXQ7dGOVXeycM5DqgBwYFK4EEACKhZANiAARTdszGBNe2PGCnc8Wvs+IDvdVEf4PPBrty0meRZf6UTbGouquTHpy6KKTq5sxrulYzsQFimg4op0UJBGxAzqo0EtTgMlLiBvY0I3Nl3N69MhWo8nvnmguvGGN32AAPXpQ="

    try:
        run_sae_pk(apdev[0], dev[0], ssid, pw, m, pk, ap_groups="20")
    finally:
        dev[0].set("sae_groups", "")

def test_sae_pk_password_without_pk(dev, apdev):
    """SAE-PK password but not SAE-PK on the AP"""
    check_sae_pk_capab(dev[0])
    dev[0].set("sae_groups", "")

    ssid = "SAE-PK test"
    pw = "dwxm-zv66-p5ue"

    params = hostapd.wpa2_params(ssid=ssid)
    params['wpa_key_mgmt'] = 'SAE'
    params['sae_password'] = pw
    hapd = hostapd.add_ap(apdev[0], params)

    dev[0].connect(ssid, sae_password=pw, key_mgmt="SAE", scan_freq="2412")
    if dev[0].get_status_field("sae_pk") != "0":
        raise Exception("Unexpected sae_pk STATUS value")

def test_sae_pk_only(dev, apdev):
    """SAE-PK only"""
    check_sae_pk_capab(dev[0])
    dev[0].set("sae_groups", "")

    ssid = "SAE-PK test"
    pw = "dwxm-zv66-p5ue"
    m = "431ff8322f93b9dc50ded9f3d14ace22"
    pk = "MHcCAQEEIAJIGlfnteonDb7rQyP/SGQjwzrZAnfrXIm4280VWajYoAoGCCqGSM49AwEHoUQDQgAEeRkstKQV+FSAMqBayqFknn2nAQsdsh/MhdX6tiHOTAFin/sUMFRMyspPtIu7YvlKdsexhI0jPVhaYZn1jKWhZg=="

    params = hostapd.wpa2_params(ssid=ssid)
    params['wpa_key_mgmt'] = 'SAE'
    params['sae_password'] = pw
    hapd = hostapd.add_ap(apdev[0], params)

    dev[0].connect(ssid, sae_password=pw, key_mgmt="SAE", sae_pk="1",
                   scan_freq="2412", wait_connect=False)
    ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED",
                            "CTRL-EVENT-NETWORK-NOT-FOUND"], timeout=10)
    if ev is None:
        raise Exception("No result for the connection attempt")
    if "CTRL-EVENT-CONNECTED" in ev:
        raise Exception("Unexpected connection without SAE-PK")
    dev[0].request("DISCONNECT")
    dev[0].dump_monitor()

    params = hostapd.wpa2_params(ssid=ssid)
    params['wpa_key_mgmt'] = 'SAE'
    params['sae_password'] = ['%s|pk=%s:%s' % (pw, m, pk)]
    hapd2 = hostapd.add_ap(apdev[1], params)
    bssid2 = hapd2.own_addr()

    dev[0].scan_for_bss(bssid2, freq=2412, force_scan=True)
    dev[0].request("RECONNECT")
    ev = dev[0].wait_connected()
    if bssid2 not in ev:
        raise Exception("Unexpected connection BSSID")
    if dev[0].get_status_field("sae_pk") != "1":
        raise Exception("SAE-PK was not used")

def test_sae_pk_modes(dev, apdev):
    """SAE-PK modes"""
    check_sae_pk_capab(dev[0])
    dev[0].set("sae_groups", "")

    ssid = "SAE-PK test"
    pw = "dwxm-zv66-p5ue"
    m = "431ff8322f93b9dc50ded9f3d14ace22"
    pk = "MHcCAQEEIAJIGlfnteonDb7rQyP/SGQjwzrZAnfrXIm4280VWajYoAoGCCqGSM49AwEHoUQDQgAEeRkstKQV+FSAMqBayqFknn2nAQsdsh/MhdX6tiHOTAFin/sUMFRMyspPtIu7YvlKdsexhI0jPVhaYZn1jKWhZg=="

    params = hostapd.wpa2_params(ssid=ssid)
    params['wpa_key_mgmt'] = 'SAE'
    params["ieee80211w"] = "2"
    params['sae_password'] = ['%s|pk=%s:%s' % (pw, m, pk)]
    hapd = hostapd.add_ap(apdev[0], params)

    tests = [(2, 0), (1, 1), (0, 1)]
    for sae_pk, expected in tests:
        dev[0].connect(ssid, sae_password=pw, key_mgmt="SAE",
                       sae_pk=str(sae_pk), ieee80211w="2", scan_freq="2412")
        val = dev[0].get_status_field("sae_pk")
        if val != str(expected):
            raise Exception("Unexpected sae_pk=%d result %s" % (sae_pk, val))
        dev[0].request("REMOVE_NETWORK *")
        dev[0].wait_disconnected()
        dev[0].dump_monitor()

def test_sae_pk_transition_disable(dev, apdev):
    """SAE-PK transition disable indication"""
    check_sae_pk_capab(dev[0])
    dev[0].set("sae_groups", "")

    ssid = "SAE-PK test"
    pw = "dwxm-zv66-p5ue"
    m = "431ff8322f93b9dc50ded9f3d14ace22"
    pk = "MHcCAQEEIAJIGlfnteonDb7rQyP/SGQjwzrZAnfrXIm4280VWajYoAoGCCqGSM49AwEHoUQDQgAEeRkstKQV+FSAMqBayqFknn2nAQsdsh/MhdX6tiHOTAFin/sUMFRMyspPtIu7YvlKdsexhI0jPVhaYZn1jKWhZg=="

    params = hostapd.wpa2_params(ssid=ssid)
    params['wpa_key_mgmt'] = 'SAE'
    params['sae_password'] = ['%s|pk=%s:%s' % (pw, m, pk)]
    params['transition_disable'] = '0x02'
    hapd = hostapd.add_ap(apdev[0], params)

    id = dev[0].connect(ssid, sae_password=pw, key_mgmt="SAE", scan_freq="2412")
    ev = dev[0].wait_event(["TRANSITION-DISABLE"], timeout=1)
    if ev is None:
        raise Exception("Transition disable not indicated")
    if ev.split(' ')[1] != "02":
        raise Exception("Unexpected transition disable bitmap: " + ev)

    val = dev[0].get_network(id, "sae_pk")
    if val != "1":
        raise Exception("Unexpected sae_pk value: " + str(val))