# EHT tests
# Copyright (c) 2022, Qualcomm Innovation Center, Inc.
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.

import hostapd
from utils import *

def test_eht_open(dev, apdev):
    """EHT AP with open mode configuration"""
    params = {"ssid": "eht",
              "ieee80211ax": "1",
              "ieee80211be": "1"}
    try:
        hapd = hostapd.add_ap(apdev[0], params)
    except Exception as e:
        if isinstance(e, Exception) and \
           str(e) == "Failed to set hostapd parameter ieee80211be":
            raise HwsimSkip("EHT not supported")
        raise
    if hapd.get_status_field("ieee80211be") != "1":
        raise Exception("AP STATUS did not indicate ieee80211be=1")
    dev[0].connect("eht", key_mgmt="NONE", scan_freq="2412")
    sta = hapd.get_sta(dev[0].own_addr())
    if "[EHT]" not in sta['flags']:
        raise Exception("Missing STA flag: EHT")
    status = dev[0].request("STATUS")
    if "wifi_generation=7" not in status:
        raise Exception("STA STATUS did not indicate wifi_generation=7")

def test_prefer_eht_20(dev, apdev):
    params = {"ssid": "eht",
              "channel": "1",
              "ieee80211ax": "1",
              "ieee80211be" : "1",
              "ieee80211n": "1"}
    try:
        hapd0 = hostapd.add_ap(apdev[0], params)

        params["ieee80211be"] = "0"
        hapd1 = hostapd.add_ap(apdev[1], params)
    except Exception as e:
        if isinstance(e, Exception) and \
           str(e) == "Failed to set hostapd parameter ieee80211be":
            raise HwsimSkip("EHT not supported")
        raise

    dev[0].connect("eht", key_mgmt="NONE")
    if dev[0].get_status_field('bssid') != apdev[0]['bssid']:
        raise Exception("dev[0] connected to unexpected AP")

    est = dev[0].get_bss(apdev[0]['bssid'])['est_throughput']
    if est != "172103":
      raise Exception("Unexpected BSS1 est_throughput: " + est)

def start_eht_sae_ap(apdev, ml=False):
    params = hostapd.wpa2_params(ssid="eht", passphrase="12345678")
    params["ieee80211ax"] = "1"
    params["ieee80211be"] = "1"
    params['ieee80211w'] = '2'
    params['rsn_pairwise'] = "GCMP-256"
    params['group_cipher'] = "GCMP-256"
    params["group_mgmt_cipher"] = "BIP-GMAC-256"
    params['beacon_prot'] = '2'
    params['wpa_key_mgmt'] = 'SAE-EXT-KEY'
    params['sae_groups'] = "20"
    params['sae_pwe'] = "1"
    if ml:
        ml_elem = "ff0d6b" + "3001" + "0a" + "021122334455" + "01" + "00" + "00"
        params['vendor_elements'] = ml_elem
    try:
        hapd = hostapd.add_ap(apdev, params)
    except Exception as e:
        if isinstance(e, Exception) and \
           str(e) == "Failed to set hostapd parameter ieee80211be":
            raise HwsimSkip("EHT not supported")
        raise

def test_eht_sae(dev, apdev):
    """EHT AP with SAE"""
    check_sae_capab(dev[0])

    hapd = start_eht_sae_ap(apdev[0])
    try:
        dev[0].set("sae_groups", "20")
        dev[0].set("sae_pwe", "2")
        dev[0].connect("eht", key_mgmt="SAE-EXT-KEY", psk="12345678",
                       ieee80211w="2", beacon_prot="1",
                       pairwise="GCMP-256", group="GCMP-256",
                       group_mgmt="BIP-GMAC-256", scan_freq="2412")
    finally:
        dev[0].set("sae_groups", "")
        dev[0].set("sae_pwe", "0")

def test_eht_sae_mlo(dev, apdev):
    """EHT+MLO AP with SAE"""
    check_sae_capab(dev[0])

    hapd = start_eht_sae_ap(apdev[0], ml=True)
    try:
        dev[0].set("sae_groups", "20")
        dev[0].set("sae_pwe", "2")
        dev[0].connect("eht", key_mgmt="SAE-EXT-KEY", psk="12345678",
                       ieee80211w="2", beacon_prot="1",
                       pairwise="GCMP-256", group="GCMP-256",
                       group_mgmt="BIP-GMAC-256", scan_freq="2412",
                       wait_connect=False)
        ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED",
                                "CTRL-EVENT-AUTH-REJECT"], timeout=10)
        if ev is None:
            raise Exception("No connection result reported")
        if "CTRL-EVENT-AUTH-REJECT" in ev:
            # There is no MLO support with SAE in hostapd yet, so allow failure
            # due to MLD address not being used.
            if "status_code=15" not in ev:
                raise Exception("Unexpected authentication failure: " + ev)
    finally:
        dev[0].set("sae_groups", "")
        dev[0].set("sae_pwe", "0")