# Suite B tests
# Copyright (c) 2014-2015, 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 logging
logger = logging.getLogger()

import hostapd
from utils import HwsimSkip, fail_test
from test_ap_eap import check_tls13_support

def check_suite_b_capa(dev):
    if "GCMP" not in dev[0].get_capability("pairwise"):
        raise HwsimSkip("GCMP not supported")
    if "BIP-GMAC-128" not in dev[0].get_capability("group_mgmt"):
        raise HwsimSkip("BIP-GMAC-128 not supported")
    if "WPA-EAP-SUITE-B" not in dev[0].get_capability("key_mgmt"):
        raise HwsimSkip("WPA-EAP-SUITE-B not supported")
    check_suite_b_tls_lib(dev, level128=True)

def check_suite_b_tls_lib(dev, dhe=False, level128=False):
    tls = dev[0].request("GET tls_library")
    if tls.startswith("GnuTLS"):
        return
    if tls.startswith("wolfSSL"):
        return
    if not tls.startswith("OpenSSL"):
        raise HwsimSkip("TLS library not supported for Suite B: " + tls)
    supported = False
    for ver in ['1.0.2', '1.1.0', '1.1.1', '3.']:
        if "build=OpenSSL " + ver in tls and "run=OpenSSL " + ver in tls:
            supported = True
            break
        if not dhe and not level128 and "build=OpenSSL " + ver in tls and "run=BoringSSL" in tls:
            supported = True
            break
    if not supported:
        raise HwsimSkip("OpenSSL version not supported for Suite B: " + tls)

def suite_b_ap_params():
    params = {"ssid": "test-suite-b",
              "wpa": "2",
              "wpa_key_mgmt": "WPA-EAP-SUITE-B",
              "rsn_pairwise": "GCMP",
              "group_mgmt_cipher": "BIP-GMAC-128",
              "ieee80211w": "2",
              "ieee8021x": "1",
              "openssl_ciphers": "SUITEB128",
              #"dh_file": "auth_serv/dh.conf",
              "eap_server": "1",
              "eap_user_file": "auth_serv/eap_user.conf",
              "ca_cert": "auth_serv/ec-ca.pem",
              "server_cert": "auth_serv/ec-server.pem",
              "private_key": "auth_serv/ec-server.key"}
    return params

def test_suite_b(dev, apdev):
    """WPA2/GCMP connection at Suite B 128-bit level"""
    check_suite_b_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_ap_params()
    hapd = hostapd.add_ap(apdev[0], params)

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B", ieee80211w="2",
                   openssl_ciphers="SUITEB128",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/ec-ca.pem",
                   client_cert="auth_serv/ec-user.pem",
                   private_key="auth_serv/ec-user.key",
                   pairwise="GCMP", group="GCMP", scan_freq="2412")
    hapd.wait_sta()
    tls_cipher = dev[0].get_status_field("EAP TLS cipher")
    if tls_cipher != "ECDHE-ECDSA-AES128-GCM-SHA256" and \
       tls_cipher != "ECDHE-ECDSA-AES-128-GCM-AEAD":
        raise Exception("Unexpected TLS cipher: " + tls_cipher)

    bss = dev[0].get_bss(apdev[0]['bssid'])
    if 'flags' not in bss:
        raise Exception("Could not get BSS flags from BSS table")
    if "[WPA2-EAP-SUITE-B-GCMP]" not in bss['flags']:
        raise Exception("Unexpected BSS flags: " + bss['flags'])

    dev[0].request("DISCONNECT")
    dev[0].wait_disconnected(timeout=20)
    dev[0].dump_monitor()
    dev[0].request("RECONNECT")
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED",
                            "CTRL-EVENT-CONNECTED"], timeout=20)
    if ev is None:
        raise Exception("Roaming with the AP timed out")
    if "CTRL-EVENT-EAP-STARTED" in ev:
        raise Exception("Unexpected EAP exchange")

    conf = hapd.get_config()
    if conf['key_mgmt'] != 'WPA-EAP-SUITE-B':
        raise Exception("Unexpected config key_mgmt: " + conf['key_mgmt'])

    hapd.wait_sta()
    dev[0].request("DISCONNECT")
    dev[0].wait_disconnected(timeout=20)
    dev[0].dump_monitor()
    dev[0].request("RECONNECT")
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED",
                            "CTRL-EVENT-CONNECTED"], timeout=20)
    if ev is None:
        raise Exception("Roaming with the AP timed out (2)")
    if "CTRL-EVENT-EAP-STARTED" in ev:
        raise Exception("Unexpected EAP exchange (2)")

def suite_b_as_params():
    params = {}
    params['ssid'] = 'as'
    params['beacon_int'] = '2000'
    params['radius_server_clients'] = 'auth_serv/radius_clients.conf'
    params['radius_server_auth_port'] = '18129'
    params['eap_server'] = '1'
    params['eap_user_file'] = 'auth_serv/eap_user.conf'
    params['ca_cert'] = 'auth_serv/ec-ca.pem'
    params['server_cert'] = 'auth_serv/ec-server.pem'
    params['private_key'] = 'auth_serv/ec-server.key'
    params['openssl_ciphers'] = 'SUITEB128'
    return params

def test_suite_b_radius(dev, apdev):
    """WPA2/GCMP (RADIUS) connection at Suite B 128-bit level"""
    check_suite_b_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_as_params()
    hostapd.add_ap(apdev[1], params)

    params = {"ssid": "test-suite-b",
              "wpa": "2",
              "wpa_key_mgmt": "WPA-EAP-SUITE-B",
              "rsn_pairwise": "GCMP",
              "group_mgmt_cipher": "BIP-GMAC-128",
              "ieee80211w": "2",
              "ieee8021x": "1",
              'auth_server_addr': "127.0.0.1",
              'auth_server_port': "18129",
              'auth_server_shared_secret': "radius",
              'nas_identifier': "nas.w1.fi"}
    hapd = hostapd.add_ap(apdev[0], params)

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B", ieee80211w="2",
                   openssl_ciphers="SUITEB128",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/ec-ca.pem",
                   client_cert="auth_serv/ec-user.pem",
                   private_key="auth_serv/ec-user.key",
                   pairwise="GCMP", group="GCMP", scan_freq="2412")

def check_suite_b_192_capa(dev, dhe=False):
    if "GCMP-256" not in dev[0].get_capability("pairwise"):
        raise HwsimSkip("GCMP-256 not supported")
    if "BIP-GMAC-256" not in dev[0].get_capability("group_mgmt"):
        raise HwsimSkip("BIP-GMAC-256 not supported")
    if "WPA-EAP-SUITE-B-192" not in dev[0].get_capability("key_mgmt"):
        raise HwsimSkip("WPA-EAP-SUITE-B-192 not supported")
    check_suite_b_tls_lib(dev, dhe=dhe)

def suite_b_192_ap_params():
    params = {"ssid": "test-suite-b",
              "wpa": "2",
              "wpa_key_mgmt": "WPA-EAP-SUITE-B-192",
              "rsn_pairwise": "GCMP-256",
              "group_mgmt_cipher": "BIP-GMAC-256",
              "ieee80211w": "2",
              "ieee8021x": "1",
              "openssl_ciphers": "SUITEB192",
              "eap_server": "1",
              "eap_user_file": "auth_serv/eap_user.conf",
              "ca_cert": "auth_serv/ec2-ca.pem",
              "server_cert": "auth_serv/ec2-server.pem",
              "private_key": "auth_serv/ec2-server.key"}
    return params

def test_suite_b_192(dev, apdev):
    """WPA2/GCMP-256 connection at Suite B 192-bit level"""
    check_suite_b_192_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_192_ap_params()
    hapd = hostapd.add_ap(apdev[0], params)

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B-192",
                   ieee80211w="2",
                   openssl_ciphers="SUITEB192",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/ec2-ca.pem",
                   client_cert="auth_serv/ec2-user.pem",
                   private_key="auth_serv/ec2-user.key",
                   pairwise="GCMP-256", group="GCMP-256", scan_freq="2412")
    tls_cipher = dev[0].get_status_field("EAP TLS cipher")
    if tls_cipher != "ECDHE-ECDSA-AES256-GCM-SHA384" and \
       tls_cipher != "ECDHE-ECDSA-AES-256-GCM-AEAD":
        raise Exception("Unexpected TLS cipher: " + tls_cipher)
    cipher = dev[0].get_status_field("mgmt_group_cipher")
    if cipher != "BIP-GMAC-256":
        raise Exception("Unexpected mgmt_group_cipher: " + cipher)

    bss = dev[0].get_bss(apdev[0]['bssid'])
    if 'flags' not in bss:
        raise Exception("Could not get BSS flags from BSS table")
    if "[WPA2-EAP-SUITE-B-192-GCMP-256]" not in bss['flags']:
        raise Exception("Unexpected BSS flags: " + bss['flags'])

    hapd.wait_sta()
    dev[0].request("DISCONNECT")
    dev[0].wait_disconnected(timeout=20)
    dev[0].dump_monitor()
    dev[0].request("RECONNECT")
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED",
                            "CTRL-EVENT-CONNECTED"], timeout=20)
    if ev is None:
        raise Exception("Roaming with the AP timed out")
    if "CTRL-EVENT-EAP-STARTED" in ev:
        raise Exception("Unexpected EAP exchange")

    conf = hapd.get_config()
    if conf['key_mgmt'] != 'WPA-EAP-SUITE-B-192':
        raise Exception("Unexpected config key_mgmt: " + conf['key_mgmt'])

    hapd.wait_sta()
    dev[0].request("DISCONNECT")
    dev[0].wait_disconnected(timeout=20)
    dev[0].dump_monitor()
    dev[0].request("RECONNECT")
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED",
                            "CTRL-EVENT-CONNECTED"], timeout=20)
    if ev is None:
        raise Exception("Roaming with the AP timed out (2)")
    if "CTRL-EVENT-EAP-STARTED" in ev:
        raise Exception("Unexpected EAP exchange (2)")

def test_suite_b_192_radius(dev, apdev):
    """WPA2/GCMP-256 (RADIUS) connection at Suite B 192-bit level"""
    check_suite_b_192_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_as_params()
    params['ca_cert'] = 'auth_serv/ec2-ca.pem'
    params['server_cert'] = 'auth_serv/ec2-server.pem'
    params['private_key'] = 'auth_serv/ec2-server.key'
    params['openssl_ciphers'] = 'SUITEB192'
    hostapd.add_ap(apdev[1], params)

    params = {"ssid": "test-suite-b",
              "wpa": "2",
              "wpa_key_mgmt": "WPA-EAP-SUITE-B-192",
              "rsn_pairwise": "GCMP-256",
              "group_mgmt_cipher": "BIP-GMAC-256",
              "ieee80211w": "2",
              "ieee8021x": "1",
              'auth_server_addr': "127.0.0.1",
              'auth_server_port': "18129",
              'auth_server_shared_secret': "radius",
              'nas_identifier': "nas.w1.fi"}
    hapd = hostapd.add_ap(apdev[0], params)

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B-192",
                   ieee80211w="2",
                   openssl_ciphers="SUITEB192",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/ec2-ca.pem",
                   client_cert="auth_serv/ec2-user.pem",
                   private_key="auth_serv/ec2-user.key",
                   pairwise="GCMP-256", group="GCMP-256", scan_freq="2412")

def test_suite_b_192_radius_and_p256_cert(dev, apdev):
    """Suite B 192-bit level and p256 client cert"""
    check_suite_b_192_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_as_params()
    params['ca_cert'] = 'auth_serv/ec2-ca.pem'
    params['server_cert'] = 'auth_serv/ec2-server.pem'
    params['private_key'] = 'auth_serv/ec2-server.key'
    params['openssl_ciphers'] = 'SUITEB192'
    hostapd.add_ap(apdev[1], params)

    params = {"ssid": "test-suite-b",
              "wpa": "2",
              "wpa_key_mgmt": "WPA-EAP-SUITE-B-192",
              "rsn_pairwise": "GCMP-256",
              "group_mgmt_cipher": "BIP-GMAC-256",
              "ieee80211w": "2",
              "ieee8021x": "1",
              'auth_server_addr': "127.0.0.1",
              'auth_server_port': "18129",
              'auth_server_shared_secret': "radius",
              'nas_identifier': "nas.w1.fi"}
    hapd = hostapd.add_ap(apdev[0], params)

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B-192",
                   ieee80211w="2",
                   #openssl_ciphers="SUITEB192",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/ec2-ca.pem",
                   client_cert="auth_serv/ec2-user-p256.pem",
                   private_key="auth_serv/ec2-user-p256.key",
                   pairwise="GCMP-256", group="GCMP-256", scan_freq="2412",
                   wait_connect=False)
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-FAILURE"], timeout=10)
    if ev is None:
        raise Exception("EAP-Failure not reported")
    ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=5)
    if ev is None:
        raise Exception("Disconnection not reported")
    if "reason=23" not in ev:
        raise Exception("Unexpected disconnection reason: " + ev)

def test_suite_b_pmkid_failure(dev, apdev):
    """WPA2/GCMP connection at Suite B 128-bit level and PMKID derivation failure"""
    check_suite_b_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_ap_params()
    hapd = hostapd.add_ap(apdev[0], params)

    with fail_test(dev[0], 1, "rsn_pmkid_suite_b"):
        dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B",
                       ieee80211w="2",
                       openssl_ciphers="SUITEB128",
                       eap="TLS", identity="tls user",
                       ca_cert="auth_serv/ec-ca.pem",
                       client_cert="auth_serv/ec-user.pem",
                       private_key="auth_serv/ec-user.key",
                       pairwise="GCMP", group="GCMP", scan_freq="2412")

def test_suite_b_192_pmkid_failure(dev, apdev):
    """WPA2/GCMP-256 connection at Suite B 192-bit level and PMKID derivation failure"""
    check_suite_b_192_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_192_ap_params()
    hapd = hostapd.add_ap(apdev[0], params)

    with fail_test(dev[0], 1, "rsn_pmkid_suite_b_192"):
        dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B-192",
                       ieee80211w="2",
                       openssl_ciphers="SUITEB192",
                       eap="TLS", identity="tls user",
                       ca_cert="auth_serv/ec2-ca.pem",
                       client_cert="auth_serv/ec2-user.pem",
                       private_key="auth_serv/ec2-user.key",
                       pairwise="GCMP-256", group="GCMP-256", scan_freq="2412")

def test_suite_b_mic_failure(dev, apdev):
    """WPA2/GCMP connection at Suite B 128-bit level and MIC derivation failure"""
    check_suite_b_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_ap_params()
    hapd = hostapd.add_ap(apdev[0], params)

    with fail_test(dev[0], 1, "wpa_eapol_key_mic"):
        dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B",
                       ieee80211w="2",
                       openssl_ciphers="SUITEB128",
                       eap="TLS", identity="tls user",
                       ca_cert="auth_serv/ec-ca.pem",
                       client_cert="auth_serv/ec-user.pem",
                       private_key="auth_serv/ec-user.key",
                       pairwise="GCMP", group="GCMP", scan_freq="2412",
                       wait_connect=False)
        dev[0].wait_disconnected()

def test_suite_b_192_mic_failure(dev, apdev):
    """WPA2/GCMP connection at Suite B 192-bit level and MIC derivation failure"""
    check_suite_b_192_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_192_ap_params()
    hapd = hostapd.add_ap(apdev[0], params)

    with fail_test(dev[0], 1, "wpa_eapol_key_mic"):
        dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B-192",
                       ieee80211w="2",
                       openssl_ciphers="SUITEB192",
                       eap="TLS", identity="tls user",
                       ca_cert="auth_serv/ec2-ca.pem",
                       client_cert="auth_serv/ec2-user.pem",
                       private_key="auth_serv/ec2-user.key",
                       pairwise="GCMP-256", group="GCMP-256", scan_freq="2412",
                       wait_connect=False)
        dev[0].wait_disconnected()

def suite_b_192_rsa_ap_params():
    params = {"ssid": "test-suite-b",
              "wpa": "2",
              "wpa_key_mgmt": "WPA-EAP-SUITE-B-192",
              "rsn_pairwise": "GCMP-256",
              "group_mgmt_cipher": "BIP-GMAC-256",
              "ieee80211w": "2",
              "ieee8021x": "1",
              "tls_flags": "[SUITEB]",
              "dh_file": "auth_serv/dh_param_3072.pem",
              "eap_server": "1",
              "eap_user_file": "auth_serv/eap_user.conf",
              "ca_cert": "auth_serv/rsa3072-ca.pem",
              "server_cert": "auth_serv/rsa3072-server.pem",
              "private_key": "auth_serv/rsa3072-server.key"}
    return params

def test_suite_b_192_rsa(dev, apdev):
    """WPA2/GCMP-256 connection at Suite B 192-bit level and RSA"""
    run_suite_b_192_rsa(dev, apdev)

def test_suite_b_192_rsa_tls_13(dev, apdev):
    """WPA2/GCMP-256 connection at Suite B 192-bit level and RSA (TLS v1.3)"""
    check_tls13_support(dev[0])
    run_suite_b_192_rsa(dev, apdev, tls13=True)

def test_suite_b_192_rsa_ecdhe(dev, apdev):
    """WPA2/GCMP-256 connection at Suite B 192-bit level and RSA (ECDHE)"""
    run_suite_b_192_rsa(dev, apdev, no_dhe=True)

def test_suite_b_192_rsa_dhe(dev, apdev):
    """WPA2/GCMP-256 connection at Suite B 192-bit level and RSA (DHE)"""
    run_suite_b_192_rsa(dev, apdev, no_ecdh=True)

def run_suite_b_192_rsa(dev, apdev, no_ecdh=False, no_dhe=False, tls13=False):
    check_suite_b_192_capa(dev, dhe=no_ecdh)
    dev[0].flush_scan_cache()
    params = suite_b_192_rsa_ap_params()
    tls_flags = ""
    if no_ecdh:
        tls_flags += "[SUITEB-NO-ECDH]"
    if no_dhe:
        del params["dh_file"]
    if tls13:
        if not no_ecdh:
            tls_flags += "[SUITEB]"
        tls_flags += "[ENABLE-TLSv1.3]"
    if len(tls_flags) > 0:
        params["tls_flags"] = tls_flags
    hapd = hostapd.add_ap(apdev[0], params)

    phase1 = "tls_suiteb=1"
    if tls13:
        phase1 += " tls_disable_tlsv1_0=1 tls_disable_tlsv1_1=1 tls_disable_tlsv1_2=1 tls_disable_tlsv1_3=0"
    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B-192",
                   ieee80211w="2",
                   phase1=phase1,
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/rsa3072-ca.pem",
                   client_cert="auth_serv/rsa3072-user.pem",
                   private_key="auth_serv/rsa3072-user.key",
                   pairwise="GCMP-256", group="GCMP-256", scan_freq="2412")
    ver = dev[0].get_status_field("eap_tls_version")
    logger.info("TLS version: " + ver)
    if tls13 and ver != "TLSv1.3":
        raise Exception("Unexpected TLS version: " + ver)
    tls_cipher = dev[0].get_status_field("EAP TLS cipher")
    if tls_cipher != "ECDHE-RSA-AES256-GCM-SHA384" and \
       tls_cipher != "DHE-RSA-AES256-GCM-SHA384" and \
       tls_cipher != "ECDHE-RSA-AES-256-GCM-AEAD" and \
       tls_cipher != "DHE-RSA-AES-256-GCM-AEAD" and \
       tls_cipher != "TLS_AES_256_GCM_SHA384":
        raise Exception("Unexpected TLS cipher: " + tls_cipher)
    cipher = dev[0].get_status_field("mgmt_group_cipher")
    if cipher != "BIP-GMAC-256":
        raise Exception("Unexpected mgmt_group_cipher: " + cipher)

    bss = dev[0].get_bss(apdev[0]['bssid'])
    if 'flags' not in bss:
        raise Exception("Could not get BSS flags from BSS table")
    if "[WPA2-EAP-SUITE-B-192-GCMP-256]" not in bss['flags']:
        raise Exception("Unexpected BSS flags: " + bss['flags'])

    hapd.wait_sta()
    dev[0].request("DISCONNECT")
    dev[0].wait_disconnected(timeout=20)
    dev[0].dump_monitor()
    dev[0].request("RECONNECT")
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED",
                            "CTRL-EVENT-CONNECTED"], timeout=20)
    if ev is None:
        raise Exception("Roaming with the AP timed out")
    if "CTRL-EVENT-EAP-STARTED" in ev:
        raise Exception("Unexpected EAP exchange")

    conf = hapd.get_config()
    if conf['key_mgmt'] != 'WPA-EAP-SUITE-B-192':
        raise Exception("Unexpected config key_mgmt: " + conf['key_mgmt'])

def test_suite_b_192_rsa_insufficient_key(dev, apdev):
    """WPA2/GCMP-256 connection at Suite B 192-bit level and RSA with insufficient key length"""
    check_suite_b_192_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_192_rsa_ap_params()
    params["ca_cert"] = "auth_serv/ca.pem"
    params["server_cert"] = "auth_serv/server.pem"
    params["private_key"] = "auth_serv/server.key"

    try:
        hapd = hostapd.add_ap(apdev[0], params)
    except Exception as e:
        hapd = hostapd.add_ap(apdev[0], suite_b_192_rsa_ap_params())
        tls = hapd.request("GET tls_library")
        if tls.startswith("wolfSSL"):
            # wolfSSL fails immediately during key loading with too short key
            raise HwsimSkip("Suite B 192-bit too short RSA key testing not supported with wolfSSL")
        raise

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B-192",
                   ieee80211w="2",
                   phase1="tls_suiteb=1",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/ca.pem",
                   client_cert="auth_serv/user.pem",
                   private_key="auth_serv/user.key",
                   pairwise="GCMP-256", group="GCMP-256", scan_freq="2412",
                   wait_connect=False)
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-TLS-CERT-ERROR"], timeout=10)
    dev[0].request("DISCONNECT")
    if ev is None:
        raise Exception("Certificate error not reported")
    if "reason=11" in ev and "err='Insufficient RSA modulus size'" in ev:
        return
    if "reason=11" in ev and "err='RSA key too small'" in ev:
        return
    if "reason=7" in ev and "err='certificate uses insecure algorithm'" in ev:
        return
    raise Exception("Unexpected error reason: " + ev)

def test_suite_b_192_rsa_insufficient_dh(dev, apdev):
    """WPA2/GCMP-256 connection at Suite B 192-bit level and RSA with insufficient DH key length"""
    check_suite_b_192_capa(dev, dhe=True)
    dev[0].flush_scan_cache()
    params = suite_b_192_rsa_ap_params()
    params["tls_flags"] = "[SUITEB-NO-ECDH]"
    params["dh_file"] = "auth_serv/dh.conf"
    try:
        hapd = hostapd.add_ap(apdev[0], params)
    except:
        hapd = hostapd.add_ap(apdev[0], suite_b_192_rsa_ap_params())
        tls = hapd.request("GET tls_library")
        if tls.startswith("wolfSSL"):
            # wolfSSL fails immediately during key loading with too short key
            raise HwsimSkip("Suite B 192-bit too short RSA key testing not supported with wolfSSL")
        raise

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B-192",
                   ieee80211w="2",
                   phase1="tls_suiteb=1",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/rsa3072-ca.pem",
                   client_cert="auth_serv/rsa3072-user.pem",
                   private_key="auth_serv/rsa3072-user.key",
                   pairwise="GCMP-256", group="GCMP-256", scan_freq="2412",
                   wait_connect=False)
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-STATUS status='local TLS alert'",
                            "CTRL-EVENT-CONNECTED", "CTRL-EVENT-EAP-FAILURE"],
                           timeout=10)
    dev[0].request("DISCONNECT")
    if ev is None:
        raise Exception("DH error not reported")
    if "CTRL-EVENT-CONNECTED" in ev:
        raise Exception("Unexpected connection")
    if "insufficient security" not in ev and "internal error" not in ev \
        and "authentication failed" not in ev:
        raise Exception("Unexpected error reason: " + ev)

def test_suite_b_192_rsa_radius(dev, apdev):
    """WPA2/GCMP-256 (RADIUS) connection at Suite B 192-bit level and RSA (ECDHE)"""
    check_suite_b_192_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_as_params()
    params['ca_cert'] = 'auth_serv/rsa3072-ca.pem'
    params['server_cert'] = 'auth_serv/rsa3072-server.pem'
    params['private_key'] = 'auth_serv/rsa3072-server.key'
    del params['openssl_ciphers']
    params["tls_flags"] = "[SUITEB]"

    hostapd.add_ap(apdev[1], params)

    params = {"ssid": "test-suite-b",
              "wpa": "2",
              "wpa_key_mgmt": "WPA-EAP-SUITE-B-192",
              "rsn_pairwise": "GCMP-256",
              "group_mgmt_cipher": "BIP-GMAC-256",
              "ieee80211w": "2",
              "ieee8021x": "1",
              'auth_server_addr': "127.0.0.1",
              'auth_server_port': "18129",
              'auth_server_shared_secret': "radius",
              'nas_identifier': "nas.w1.fi"}
    hapd = hostapd.add_ap(apdev[0], params)

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B-192",
                   ieee80211w="2",
                   openssl_ciphers="ECDHE-RSA-AES256-GCM-SHA384",
                   phase1="tls_suiteb=1",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/rsa3072-ca.pem",
                   client_cert="auth_serv/rsa3072-user.pem",
                   private_key="auth_serv/rsa3072-user.key",
                   pairwise="GCMP-256", group="GCMP-256",
                   group_mgmt="BIP-GMAC-256", scan_freq="2412")
    tls_cipher = dev[0].get_status_field("EAP TLS cipher")
    if tls_cipher != "ECDHE-RSA-AES256-GCM-SHA384" and \
       tls_cipher != "ECDHE-RSA-AES-256-GCM-AEAD":
        raise Exception("Unexpected TLS cipher: " + tls_cipher)

def test_suite_b_192_rsa_ecdhe_radius_rsa2048_client(dev, apdev):
    """Suite B 192-bit level and RSA (ECDHE) and RSA2048 client"""
    run_suite_b_192_rsa_radius_rsa2048_client(dev, apdev, True)

def test_suite_b_192_rsa_dhe_radius_rsa2048_client(dev, apdev):
    """Suite B 192-bit level and RSA (DHE) and RSA2048 client"""
    run_suite_b_192_rsa_radius_rsa2048_client(dev, apdev, False)

def run_suite_b_192_rsa_radius_rsa2048_client(dev, apdev, ecdhe):
    check_suite_b_192_capa(dev, dhe=not ecdhe)
    dev[0].flush_scan_cache()
    params = suite_b_as_params()
    params['ca_cert'] = 'auth_serv/rsa3072-ca.pem'
    params['server_cert'] = 'auth_serv/rsa3072-server.pem'
    params['private_key'] = 'auth_serv/rsa3072-server.key'
    del params['openssl_ciphers']
    if ecdhe:
        params["tls_flags"] = "[SUITEB]"
        ciphers = "ECDHE-RSA-AES256-GCM-SHA384"
    else:
        params["tls_flags"] = "[SUITEB-NO-ECDH]"
        params["dh_file"] = "auth_serv/dh_param_3072.pem"
        ciphers = "DHE-RSA-AES256-GCM-SHA384"

    hostapd.add_ap(apdev[1], params)

    params = {"ssid": "test-suite-b",
              "wpa": "2",
              "wpa_key_mgmt": "WPA-EAP-SUITE-B-192",
              "rsn_pairwise": "GCMP-256",
              "group_mgmt_cipher": "BIP-GMAC-256",
              "ieee80211w": "2",
              "ieee8021x": "1",
              'auth_server_addr': "127.0.0.1",
              'auth_server_port': "18129",
              'auth_server_shared_secret': "radius",
              'nas_identifier': "nas.w1.fi"}
    hapd = hostapd.add_ap(apdev[0], params)

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B-192",
                   ieee80211w="2",
                   openssl_ciphers=ciphers,
                   phase1="tls_suiteb=1",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/rsa3072-ca.pem",
                   client_cert="auth_serv/rsa3072-user-rsa2048.pem",
                   private_key="auth_serv/rsa3072-user-rsa2048.key",
                   pairwise="GCMP-256", group="GCMP-256",
                   group_mgmt="BIP-GMAC-256", scan_freq="2412",
                   wait_connect=False)
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-FAILURE"], timeout=10)
    if ev is None:
        raise Exception("EAP-Failure not reported")
    ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=5)
    if ev is None:
        raise Exception("Disconnection not reported")
    if "reason=23" not in ev:
        raise Exception("Unexpected disconnection reason: " + ev)

def test_openssl_ecdh_curves(dev, apdev):
    """OpenSSL ECDH curve configuration"""
    check_suite_b_192_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_192_ap_params()
    params['wpa_key_mgmt'] = "WPA-EAP"
    del params['openssl_ciphers']
    hapd = hostapd.add_ap(apdev[0], params)

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP",
                   ieee80211w="2",
                   openssl_ciphers="SUITEB192",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/ec2-ca.pem",
                   client_cert="auth_serv/ec2-user.pem",
                   private_key="auth_serv/ec2-user.key",
                   pairwise="GCMP-256", group="GCMP-256", scan_freq="2412")
    dev[0].request("REMOVE_NETWORK all")
    dev[0].wait_disconnected()

    hapd.disable()
    hapd.set('openssl_ecdh_curves', 'foo')
    if "FAIL" not in hapd.request("ENABLE"):
        raise Exception("Invalid openssl_ecdh_curves value accepted")
    hapd.set('openssl_ecdh_curves', 'P-384')
    hapd.enable()

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP",
                   ieee80211w="2",
                   openssl_ciphers="SUITEB192",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/ec2-ca.pem",
                   client_cert="auth_serv/ec2-user.pem",
                   private_key="auth_serv/ec2-user.key",
                   pairwise="GCMP-256", group="GCMP-256", scan_freq="2412")
    dev[0].request("REMOVE_NETWORK all")
    dev[0].wait_disconnected()

    # Check with server enforcing P-256 and client allowing only P-384
    hapd.disable()
    hapd.set('openssl_ecdh_curves', 'P-256')
    hapd.enable()

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP",
                   ieee80211w="2",
                   openssl_ciphers="SUITEB192",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/ec2-ca.pem",
                   client_cert="auth_serv/ec2-user.pem",
                   private_key="auth_serv/ec2-user.key",
                   pairwise="GCMP-256", group="GCMP-256", scan_freq="2412",
                   wait_connect=False)
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-FAILURE"], timeout=10)
    if ev is None:
        raise Exception("EAP failure not reported")
    dev[0].request("REMOVE_NETWORK all")
    dev[0].wait_disconnected()

def test_suite_b_192_pmksa_caching_roam(dev, apdev):
    """WPA2/GCMP-256 connection at Suite B 192-bit level using PMKSA caching and roaming"""
    check_suite_b_192_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_192_ap_params()
    hapd = hostapd.add_ap(apdev[0], params)
    bssid = hapd.own_addr()

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B-192",
                   ieee80211w="2",
                   openssl_ciphers="SUITEB192",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/ec2-ca.pem",
                   client_cert="auth_serv/ec2-user.pem",
                   private_key="auth_serv/ec2-user.key",
                   pairwise="GCMP-256", group="GCMP-256", scan_freq="2412")
    ev = dev[0].wait_event(["PMKSA-CACHE-ADDED"], timeout=5)
    if ev is None:
        raise Exception("PMKSA cache entry not added for AP1")
    hapd.wait_sta()
    dev[0].dump_monitor()

    hapd2 = hostapd.add_ap(apdev[1], params)
    bssid2 = hapd2.own_addr()
    dev[0].scan_for_bss(bssid2, freq=2412)
    dev[0].request("ROAM " + bssid2)
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED",
                            "CTRL-EVENT-CONNECTED"], timeout=20)
    if ev is None:
        raise Exception("Roaming with the AP timed out")
    if "CTRL-EVENT-EAP-STARTED" not in ev:
        raise Exception("EAP exchange not seen")
    ev = dev[0].wait_connected()
    if bssid2 not in ev:
        raise Exception("Roam to AP2 connected back to AP1")
    ev = dev[0].wait_event(["PMKSA-CACHE-ADDED"], timeout=5)
    if ev is None:
        raise Exception("PMKSA cache entry not added for AP2")
    hapd2.wait_sta()
    dev[0].dump_monitor()

    dev[0].request("ROAM " + bssid)
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED",
                            "CTRL-EVENT-CONNECTED"], timeout=20)
    if ev is None:
        raise Exception("Roaming with the AP timed out")
    if "CTRL-EVENT-EAP-STARTED" in ev:
        raise Exception("Unexpected EAP exchange")
    if bssid not in ev:
        raise Exception("Roam to AP1 connected back to AP2")
    hapd.wait_sta()
    dev[0].dump_monitor()

    dev[0].request("ROAM " + bssid2)
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED",
                            "CTRL-EVENT-CONNECTED"], timeout=20)
    if ev is None:
        raise Exception("Roaming with the AP timed out")
    if "CTRL-EVENT-EAP-STARTED" in ev:
        raise Exception("Unexpected EAP exchange")
    if bssid2 not in ev:
        raise Exception("Second roam to AP2 connected back to AP1")
    hapd2.wait_sta()
    dev[0].dump_monitor()

def test_suite_b_192_okc(dev, apdev):
    """WPA3/GCMP-256 connection at Suite B 192-bit level and OKC"""
    check_suite_b_192_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_192_ap_params()
    params['okc'] = "1"
    hapd = hostapd.add_ap(apdev[0], params)
    bssid = hapd.own_addr()

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B-192",
                   ieee80211w="2",
                   openssl_ciphers="SUITEB192",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/ec2-ca.pem",
                   client_cert="auth_serv/ec2-user.pem",
                   private_key="auth_serv/ec2-user.key",
                   pairwise="GCMP-256", group="GCMP-256", okc=True,
                   scan_freq="2412")
    hapd.wait_sta()

    pmksa = dev[0].get_pmksa(bssid)
    if pmksa is None:
        raise Exception("No PMKSA cache entry created")
    if pmksa['opportunistic'] != '0':
        raise Exception("Unexpected opportunistic PMKSA cache entry")

    hapd2 = hostapd.add_ap(apdev[1], params)
    bssid2 = hapd2.own_addr()
    dev[0].scan_for_bss(bssid2, freq=2412)
    dev[0].request("ROAM " + bssid2)
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED",
                            "CTRL-EVENT-CONNECTED"], timeout=10)
    if ev is None:
        raise Exception("Roaming with the AP timed out")
    if "CTRL-EVENT-EAP-STARTED" in ev:
        raise Exception("Unexpected EAP exchange")
    pmksa2 = dev[0].get_pmksa(bssid2)
    if pmksa2 is None:
        raise Exception("No PMKSA cache entry created")

    dev[0].request("ROAM " + bssid)
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED",
                            "CTRL-EVENT-CONNECTED"], timeout=10)
    if ev is None:
        raise Exception("Roaming with the AP timed out")
    if "CTRL-EVENT-EAP-STARTED" in ev:
        raise Exception("Unexpected EAP exchange")

    pmksa1b = dev[0].get_pmksa(bssid)
    if pmksa1b is None:
        raise Exception("No PMKSA cache entry found")
    if pmksa['pmkid'] != pmksa1b['pmkid']:
        raise Exception("Unexpected PMKID change for AP1")

    dev[0].request("ROAM " + bssid2)
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED",
                            "CTRL-EVENT-CONNECTED"], timeout=10)
    if ev is None:
        raise Exception("Roaming with the AP timed out")
    if "CTRL-EVENT-EAP-STARTED" in ev:
        raise Exception("Unexpected EAP exchange")
    pmksa2b = dev[0].get_pmksa(bssid2)
    if pmksa2b is None:
        raise Exception("No PMKSA cache entry created")
    if pmksa2['pmkid'] != pmksa2b['pmkid']:
        raise Exception("Unexpected PMKID change for AP2")

def test_suite_b_192_rsa_no_cs_match(dev, apdev):
    """Suite B 192-bit level RSA failing (no CS match)"""
    check_suite_b_192_capa(dev)
    dev[0].flush_scan_cache()
    params = suite_b_192_rsa_ap_params()
    params['openssl_ciphers'] = "DHE-RSA-AES256-SHA"
    hapd = hostapd.add_ap(apdev[0], params)

    dev[0].connect("test-suite-b", key_mgmt="WPA-EAP-SUITE-B-192",
                   ieee80211w="2",
                   phase1="tls_suiteb=1",
                   eap="TLS", identity="tls user",
                   ca_cert="auth_serv/rsa3072-ca.pem",
                   client_cert="auth_serv/rsa3072-user.pem",
                   private_key="auth_serv/rsa3072-user.key",
                   pairwise="GCMP-256", group="GCMP-256", scan_freq="2412",
                   wait_connect=False)
    ev = dev[0].wait_event(["CTRL-EVENT-EAP-FAILURE"], timeout=10)
    if ev is None:
        raise Exception("EAP-Failure not reported")
    ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=5)
    if ev is None:
        raise Exception("Disconnection not reported")
    if "reason=23" not in ev:
        raise Exception("Unexpected disconnection reason: " + ev)
