def run_wpas_ap_lifetime_in_memory(dev, apdev, params, raw):
ssid = "test-wpa2-psk"
passphrase = 'qwertyuiop'
psk = '602e323e077bc63bd80307ef4745b754b0ae0a925c2638ecd13a794b9527b9e6'
pmk = binascii.unhexlify(psk)
pid = find_wpas_process(dev[0])
id = dev[0].add_network()
dev[0].set_network(id, "mode", "2")
dev[0].set_network_quoted(id, "ssid", ssid)
dev[0].set_network(id, "proto", "WPA2")
dev[0].set_network(id, "pairwise", "CCMP")
dev[0].set_network(id, "group", "CCMP")
if raw:
dev[0].set_network(id, "psk", psk)
else:
dev[0].set_network_quoted(id, "psk", passphrase)
dev[0].set_network(id, "frequency", "2412")
dev[0].set_network(id, "scan_freq", "2412")
logger.info("Checking keys in memory after network profile configuration")
buf = read_process_memory(pid, pmk)
get_key_locations(buf, pmk, "PMK")
dev[0].select_network(id)
wait_ap_ready(dev[0])
logger.info("Checking keys in memory after AP start")
buf = read_process_memory(pid, pmk)
get_key_locations(buf, pmk, "PMK")
dev[1].connect(ssid, psk=passphrase, scan_freq="2412")
buf = read_process_memory(pid, pmk)
dev[1].request("DISCONNECT")
dev[1].wait_disconnected()
buf2 = read_process_memory(pid, pmk)
dev[0].request("REMOVE_NETWORK all")
dev[0].wait_disconnected()
buf3 = read_process_memory(pid, pmk)
dev[1].relog()
ptk = None
gtk = None
with open(os.path.join(params['logdir'], 'log1'), 'r') as f:
for l in f.readlines():
if "WPA: PTK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
ptk = binascii.unhexlify(val)
if "WPA: Group Key - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
gtk = binascii.unhexlify(val)
if not pmk or not ptk or not gtk:
raise Exception("Could not find keys from debug log")
if len(gtk) != 16:
raise Exception("Unexpected GTK length")
kck = ptk[0:16]
kek = ptk[16:32]
tk = ptk[32:48]
logger.info("Checking keys in memory while associated")
get_key_locations(buf, pmk, "PMK")
if pmk not in buf:
raise HwsimSkip("PMK not found while associated")
if kck not in buf:
raise Exception("KCK not found while associated")
if kek not in buf:
raise Exception("KEK not found while associated")
#if tk in buf:
# raise Exception("TK found from memory")
logger.info("Checking keys in memory after disassociation")
get_key_locations(buf2, pmk, "PMK")
# Note: PMK/PSK is still present in network configuration and GTK is still
# in use.
fname = params['prefix'] + '.memctx-'
verify_not_present(buf2, kck, fname, "KCK")
verify_not_present(buf2, kek, fname, "KEK")
verify_not_present(buf2, tk, fname, "TK")
get_key_locations(buf2, gtk, "GTK")
logger.info("Checking keys in memory after network profile removal")
get_key_locations(buf3, pmk, "PMK")
verify_not_present(buf3, pmk, fname, "PMK")
verify_not_present(buf3, kck, fname, "KCK")
verify_not_present(buf3, kek, fname, "KEK")
verify_not_present(buf3, tk, fname, "TK")
get_key_locations(buf3, gtk, "GTK")
verify_not_present(buf3, gtk, fname, "GTK")
def test_sae_key_lifetime_in_memory(dev, apdev, params):
"""SAE and key lifetime in memory"""
if "SAE" not in dev[0].get_capability("auth_alg"):
raise HwsimSkip("SAE not supported")
password = "******"
p = hostapd.wpa2_params(ssid="test-sae", passphrase=password)
p['wpa_key_mgmt'] = 'SAE'
hapd = hostapd.add_ap(apdev[0], p)
pid = find_wpas_process(dev[0])
dev[0].request("SET sae_groups ")
id = dev[0].connect("test-sae", psk=password, key_mgmt="SAE",
scan_freq="2412")
# The decrypted copy of GTK is freed only after the CTRL-EVENT-CONNECTED
# event has been delivered, so verify that wpa_supplicant has returned to
# eloop before reading process memory.
time.sleep(1)
dev[0].ping()
buf = read_process_memory(pid, password)
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
dev[0].relog()
sae_k = None
sae_keyseed = None
sae_kck = None
pmk = None
ptk = None
gtk = None
with open(os.path.join(params['logdir'], 'log0'), 'r') as f:
for l in f.readlines():
if "SAE: k - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
sae_k = binascii.unhexlify(val)
if "SAE: keyseed - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
sae_keyseed = binascii.unhexlify(val)
if "SAE: KCK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
sae_kck = binascii.unhexlify(val)
if "SAE: PMK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
pmk = binascii.unhexlify(val)
if "WPA: PTK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
ptk = binascii.unhexlify(val)
if "WPA: Group Key - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
gtk = binascii.unhexlify(val)
if not sae_k or not sae_keyseed or not sae_kck or not pmk or not ptk or not gtk:
raise Exception("Could not find keys from debug log")
if len(gtk) != 16:
raise Exception("Unexpected GTK length")
kck = ptk[0:16]
kek = ptk[16:32]
tk = ptk[32:48]
fname = os.path.join(params['logdir'],
'sae_key_lifetime_in_memory.memctx-')
logger.info("Checking keys in memory while associated")
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
if password not in buf:
raise HwsimSkip("Password not found while associated")
if pmk not in buf:
raise HwsimSkip("PMK not found while associated")
if kck not in buf:
raise Exception("KCK not found while associated")
if kek not in buf:
raise Exception("KEK not found while associated")
if tk in buf:
raise Exception("TK found from memory")
if gtk in buf:
get_key_locations(buf, gtk, "GTK")
raise Exception("GTK found from memory")
verify_not_present(buf, sae_k, fname, "SAE(k)")
verify_not_present(buf, sae_keyseed, fname, "SAE(keyseed)")
verify_not_present(buf, sae_kck, fname, "SAE(KCK)")
logger.info("Checking keys in memory after disassociation")
buf = read_process_memory(pid, password)
# Note: Password is still present in network configuration
# Note: PMK is in PMKSA cache
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
verify_not_present(buf, gtk, fname, "GTK")
verify_not_present(buf, sae_k, fname, "SAE(k)")
verify_not_present(buf, sae_keyseed, fname, "SAE(keyseed)")
verify_not_present(buf, sae_kck, fname, "SAE(KCK)")
dev[0].request("PMKSA_FLUSH")
logger.info("Checking keys in memory after PMKSA cache flush")
buf = read_process_memory(pid, password)
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
verify_not_present(buf, pmk, fname, "PMK")
dev[0].request("REMOVE_NETWORK all")
logger.info("Checking keys in memory after network profile removal")
buf = read_process_memory(pid, password)
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
verify_not_present(buf, password, fname, "password")
verify_not_present(buf, pmk, fname, "PMK")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
verify_not_present(buf, gtk, fname, "GTK")
verify_not_present(buf, sae_k, fname, "SAE(k)")
verify_not_present(buf, sae_keyseed, fname, "SAE(keyseed)")
verify_not_present(buf, sae_kck, fname, "SAE(KCK)")
def test_erp_key_lifetime_in_memory(dev, apdev, params):
"""ERP and key lifetime in memory"""
check_erp_capa(dev[0])
p = int_eap_server_params()
p['erp_send_reauth_start'] = '1'
p['erp_domain'] = 'example.com'
p['eap_server_erp'] = '1'
p['disable_pmksa_caching'] = '1'
hapd = hostapd.add_ap(apdev[0], p)
password = "******"
pid = find_wpas_process(dev[0])
dev[0].request("ERP_FLUSH")
dev[0].connect("test-wpa2-eap",
key_mgmt="WPA-EAP",
eap="TTLS",
identity="*****@*****.**",
password=password,
ca_cert="auth_serv/ca.pem",
phase2="auth=PAP",
erp="1",
scan_freq="2412")
# The decrypted copy of GTK is freed only after the CTRL-EVENT-CONNECTED
# event has been delivered, so verify that wpa_supplicant has returned to
# eloop before reading process memory.
time.sleep(1)
dev[0].ping()
password = password.encode()
buf = read_process_memory(pid, password)
dev[0].request("DISCONNECT")
dev[0].wait_disconnected(timeout=15)
dev[0].relog()
msk = None
emsk = None
rRK = None
rIK = None
pmk = None
ptk = None
gtk = None
with open(os.path.join(params['logdir'], 'log0'), 'r') as f:
for l in f.readlines():
if "EAP-TTLS: Derived key - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
msk = binascii.unhexlify(val)
if "EAP-TTLS: Derived EMSK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
emsk = binascii.unhexlify(val)
if "EAP: ERP rRK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
rRK = binascii.unhexlify(val)
if "EAP: ERP rIK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
rIK = binascii.unhexlify(val)
if "WPA: PMK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
pmk = binascii.unhexlify(val)
if "WPA: PTK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
ptk = binascii.unhexlify(val)
if "WPA: Group Key - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
gtk = binascii.unhexlify(val)
if not msk or not emsk or not rIK or not rRK or not pmk or not ptk or not gtk:
raise Exception("Could not find keys from debug log")
if len(gtk) != 16:
raise Exception("Unexpected GTK length")
kck = ptk[0:16]
kek = ptk[16:32]
tk = ptk[32:48]
fname = os.path.join(params['logdir'],
'erp_key_lifetime_in_memory.memctx-')
logger.info("Checking keys in memory while associated")
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, msk, "MSK")
get_key_locations(buf, emsk, "EMSK")
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
if password not in buf:
raise HwsimSkip("Password not found while associated")
if pmk not in buf:
raise HwsimSkip("PMK not found while associated")
if kck not in buf:
raise Exception("KCK not found while associated")
if kek not in buf:
raise Exception("KEK not found while associated")
#if tk in buf:
# raise Exception("TK found from memory")
logger.info("Checking keys in memory after disassociation")
buf = read_process_memory(pid, password)
# Note: Password is still present in network configuration
# Note: PMK is in EAP fast re-auth data
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, msk, "MSK")
get_key_locations(buf, emsk, "EMSK")
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
if gtk in buf:
get_key_locations(buf, gtk, "GTK")
verify_not_present(buf, gtk, fname, "GTK")
dev[0].request("RECONNECT")
ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15)
if ev is None:
raise Exception("EAP success timed out")
if "EAP re-authentication completed successfully" not in ev:
raise Exception("Did not use ERP")
dev[0].wait_connected(timeout=15, error="Reconnection timed out")
dev[0].request("DISCONNECT")
dev[0].wait_disconnected(timeout=15)
dev[0].relog()
pmk = None
ptk = None
gtk = None
with open(os.path.join(params['logdir'], 'log0'), 'r') as f:
for l in f.readlines():
if "WPA: PMK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
pmk = binascii.unhexlify(val)
if "WPA: PTK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
ptk = binascii.unhexlify(val)
if "WPA: GTK in EAPOL-Key - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
gtk = binascii.unhexlify(val)
if not pmk or not ptk or not gtk:
raise Exception("Could not find keys from debug log")
kck = ptk[0:16]
kek = ptk[16:32]
tk = ptk[32:48]
logger.info("Checking keys in memory after ERP and disassociation")
buf = read_process_memory(pid, password)
# Note: Password is still present in network configuration
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, msk, "MSK")
get_key_locations(buf, emsk, "EMSK")
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
verify_not_present(buf, gtk, fname, "GTK")
dev[0].request("REMOVE_NETWORK all")
logger.info("Checking keys in memory after network profile removal")
buf = read_process_memory(pid, password)
# Note: rRK and rIK are still in memory
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, msk, "MSK")
get_key_locations(buf, emsk, "EMSK")
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
verify_not_present(buf, password, fname, "password")
verify_not_present(buf, pmk, fname, "PMK")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
verify_not_present(buf, gtk, fname, "GTK")
verify_not_present(buf, msk, fname, "MSK")
verify_not_present(buf, emsk, fname, "EMSK")
dev[0].request("ERP_FLUSH")
logger.info("Checking keys in memory after ERP_FLUSH")
buf = read_process_memory(pid, password)
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
verify_not_present(buf, rRK, fname, "rRK")
verify_not_present(buf, rIK, fname, "rIK")
def test_ft_psk_key_lifetime_in_memory(dev, apdev, params):
"""WPA2-PSK-FT and key lifetime in memory"""
ssid = "test-ft"
passphrase = "04c2726b4b8d5f1b4db9c07aa4d9e9d8f765cb5d25ec817e6cc4fcdd5255db0"
psk = '93c90846ff67af9037ed83fb72b63dbeddaa81d47f926c20909b5886f1d9358d'
pmk = binascii.unhexlify(psk)
p = ft_params1(ssid=ssid, passphrase=passphrase)
hapd0 = hostapd.add_ap(apdev[0], p)
p = ft_params2(ssid=ssid, passphrase=passphrase)
hapd1 = hostapd.add_ap(apdev[1], p)
pid = find_wpas_process(dev[0])
dev[0].connect(ssid,
psk=passphrase,
key_mgmt="FT-PSK",
proto="WPA2",
scan_freq="2412")
# The decrypted copy of GTK is freed only after the CTRL-EVENT-CONNECTED
# event has been delivered, so verify that wpa_supplicant has returned to
# eloop before reading process memory.
time.sleep(1)
dev[0].ping()
buf = read_process_memory(pid, pmk)
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
dev[0].relog()
pmkr0 = None
pmkr1 = None
ptk = None
gtk = None
with open(os.path.join(params['logdir'], 'log0'), 'r') as f:
for l in f.readlines():
if "FT: PMK-R0 - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
pmkr0 = binascii.unhexlify(val)
if "FT: PMK-R1 - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
pmkr1 = binascii.unhexlify(val)
if "FT: KCK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
kck = binascii.unhexlify(val)
if "FT: KEK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
kek = binascii.unhexlify(val)
if "FT: TK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
tk = binascii.unhexlify(val)
if "WPA: Group Key - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
gtk = binascii.unhexlify(val)
if not pmkr0 or not pmkr1 or not kck or not kek or not tk or not gtk:
raise Exception("Could not find keys from debug log")
if len(gtk) != 16:
raise Exception("Unexpected GTK length")
logger.info("Checking keys in memory while associated")
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, pmkr0, "PMK-R0")
get_key_locations(buf, pmkr1, "PMK-R1")
if pmk not in buf:
raise HwsimSkip("PMK not found while associated")
if pmkr0 not in buf:
raise HwsimSkip("PMK-R0 not found while associated")
if pmkr1 not in buf:
raise HwsimSkip("PMK-R1 not found while associated")
if kck not in buf:
raise Exception("KCK not found while associated")
if kek not in buf:
raise Exception("KEK not found while associated")
if tk in buf:
raise Exception("TK found from memory")
if gtk in buf:
get_key_locations(buf, gtk, "GTK")
raise Exception("GTK found from memory")
logger.info("Checking keys in memory after disassociation")
buf = read_process_memory(pid, pmk)
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, pmkr0, "PMK-R0")
get_key_locations(buf, pmkr1, "PMK-R1")
# Note: PMK/PSK is still present in network configuration
fname = os.path.join(params['logdir'],
'ft_psk_key_lifetime_in_memory.memctx-')
verify_not_present(buf, pmkr0, fname, "PMK-R0")
verify_not_present(buf, pmkr1, fname, "PMK-R1")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
verify_not_present(buf, gtk, fname, "GTK")
dev[0].request("REMOVE_NETWORK all")
logger.info("Checking keys in memory after network profile removal")
buf = read_process_memory(pid, pmk)
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, pmkr0, "PMK-R0")
get_key_locations(buf, pmkr1, "PMK-R1")
verify_not_present(buf, pmk, fname, "PMK")
verify_not_present(buf, pmkr0, fname, "PMK-R0")
verify_not_present(buf, pmkr1, fname, "PMK-R1")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
verify_not_present(buf, gtk, fname, "GTK")
def test_erp_key_lifetime_in_memory(dev, apdev, params):
"""ERP and key lifetime in memory"""
check_erp_capa(dev[0])
p = int_eap_server_params()
p['erp_send_reauth_start'] = '1'
p['erp_domain'] = 'example.com'
p['eap_server_erp'] = '1'
p['disable_pmksa_caching'] = '1'
hapd = hostapd.add_ap(apdev[0]['ifname'], p)
password = "******"
pid = find_wpas_process(dev[0])
dev[0].request("ERP_FLUSH")
dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP", eap="TTLS",
identity="*****@*****.**", password=password,
ca_cert="auth_serv/ca.pem", phase2="auth=PAP",
erp="1", scan_freq="2412")
# The decrypted copy of GTK is freed only after the CTRL-EVENT-CONNECTED
# event has been delivered, so verify that wpa_supplicant has returned to
# eloop before reading process memory.
time.sleep(1)
dev[0].ping()
buf = read_process_memory(pid, password)
dev[0].request("DISCONNECT")
dev[0].wait_disconnected(timeout=15)
dev[0].relog()
msk = None
emsk = None
rRK = None
rIK = None
pmk = None
ptk = None
gtk = None
with open(os.path.join(params['logdir'], 'log0'), 'r') as f:
for l in f.readlines():
if "EAP-TTLS: Derived key - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
msk = binascii.unhexlify(val)
if "EAP-TTLS: Derived EMSK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
emsk = binascii.unhexlify(val)
if "EAP: ERP rRK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
rRK = binascii.unhexlify(val)
if "EAP: ERP rIK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
rIK = binascii.unhexlify(val)
if "WPA: PMK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
pmk = binascii.unhexlify(val)
if "WPA: PTK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
ptk = binascii.unhexlify(val)
if "WPA: Group Key - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
gtk = binascii.unhexlify(val)
if not msk or not emsk or not rIK or not rRK or not pmk or not ptk or not gtk:
raise Exception("Could not find keys from debug log")
if len(gtk) != 16:
raise Exception("Unexpected GTK length")
kck = ptk[0:16]
kek = ptk[16:32]
tk = ptk[32:48]
fname = os.path.join(params['logdir'],
'erp_key_lifetime_in_memory.memctx-')
logger.info("Checking keys in memory while associated")
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, msk, "MSK")
get_key_locations(buf, emsk, "EMSK")
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
if password not in buf:
raise HwsimSkip("Password not found while associated")
if pmk not in buf:
raise HwsimSkip("PMK not found while associated")
if kck not in buf:
raise Exception("KCK not found while associated")
if kek not in buf:
raise Exception("KEK not found while associated")
if tk in buf:
raise Exception("TK found from memory")
if gtk in buf:
get_key_locations(buf, gtk, "GTK")
raise Exception("GTK found from memory")
logger.info("Checking keys in memory after disassociation")
buf = read_process_memory(pid, password)
# Note: Password is still present in network configuration
# Note: PMK is in EAP fast re-auth data
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, msk, "MSK")
get_key_locations(buf, emsk, "EMSK")
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
verify_not_present(buf, gtk, fname, "GTK")
dev[0].request("RECONNECT")
ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15)
if ev is None:
raise Exception("EAP success timed out")
if "EAP re-authentication completed successfully" not in ev:
raise Exception("Did not use ERP")
dev[0].wait_connected(timeout=15, error="Reconnection timed out")
dev[0].request("DISCONNECT")
dev[0].wait_disconnected(timeout=15)
dev[0].relog()
pmk = None
ptk = None
gtk = None
with open(os.path.join(params['logdir'], 'log0'), 'r') as f:
for l in f.readlines():
if "WPA: PMK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
pmk = binascii.unhexlify(val)
if "WPA: PTK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
ptk = binascii.unhexlify(val)
if "WPA: GTK in EAPOL-Key - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
gtk = binascii.unhexlify(val)
if not pmk or not ptk or not gtk:
raise Exception("Could not find keys from debug log")
kck = ptk[0:16]
kek = ptk[16:32]
tk = ptk[32:48]
logger.info("Checking keys in memory after ERP and disassociation")
buf = read_process_memory(pid, password)
# Note: Password is still present in network configuration
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, msk, "MSK")
get_key_locations(buf, emsk, "EMSK")
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
verify_not_present(buf, gtk, fname, "GTK")
dev[0].request("REMOVE_NETWORK all")
logger.info("Checking keys in memory after network profile removal")
buf = read_process_memory(pid, password)
# Note: rRK and rIK are still in memory
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, msk, "MSK")
get_key_locations(buf, emsk, "EMSK")
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
verify_not_present(buf, password, fname, "password")
verify_not_present(buf, pmk, fname, "PMK")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
verify_not_present(buf, gtk, fname, "GTK")
verify_not_present(buf, msk, fname, "MSK")
verify_not_present(buf, emsk, fname, "EMSK")
dev[0].request("ERP_FLUSH")
logger.info("Checking keys in memory after ERP_FLUSH")
buf = read_process_memory(pid, password)
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
verify_not_present(buf, rRK, fname, "rRK")
verify_not_present(buf, rIK, fname, "rIK")
def test_ft_psk_key_lifetime_in_memory(dev, apdev, params):
"""WPA2-PSK-FT and key lifetime in memory"""
ssid = "test-ft"
passphrase="04c2726b4b8d5f1b4db9c07aa4d9e9d8f765cb5d25ec817e6cc4fcdd5255db0"
psk = '93c90846ff67af9037ed83fb72b63dbeddaa81d47f926c20909b5886f1d9358d'
pmk = binascii.unhexlify(psk)
p = ft_params1(ssid=ssid, passphrase=passphrase)
hapd0 = hostapd.add_ap(apdev[0], p)
p = ft_params2(ssid=ssid, passphrase=passphrase)
hapd1 = hostapd.add_ap(apdev[1], p)
pid = find_wpas_process(dev[0])
dev[0].connect(ssid, psk=passphrase, key_mgmt="FT-PSK", proto="WPA2",
scan_freq="2412")
# The decrypted copy of GTK is freed only after the CTRL-EVENT-CONNECTED
# event has been delivered, so verify that wpa_supplicant has returned to
# eloop before reading process memory.
time.sleep(1)
dev[0].ping()
buf = read_process_memory(pid, pmk)
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
dev[0].relog()
pmkr0 = None
pmkr1 = None
ptk = None
gtk = None
with open(os.path.join(params['logdir'], 'log0'), 'r') as f:
for l in f.readlines():
if "FT: PMK-R0 - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
pmkr0 = binascii.unhexlify(val)
if "FT: PMK-R1 - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
pmkr1 = binascii.unhexlify(val)
if "FT: KCK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
kck = binascii.unhexlify(val)
if "FT: KEK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
kek = binascii.unhexlify(val)
if "FT: TK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
tk = binascii.unhexlify(val)
if "WPA: Group Key - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
gtk = binascii.unhexlify(val)
if not pmkr0 or not pmkr1 or not kck or not kek or not tk or not gtk:
raise Exception("Could not find keys from debug log")
if len(gtk) != 16:
raise Exception("Unexpected GTK length")
logger.info("Checking keys in memory while associated")
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, pmkr0, "PMK-R0")
get_key_locations(buf, pmkr1, "PMK-R1")
if pmk not in buf:
raise HwsimSkip("PMK not found while associated")
if pmkr0 not in buf:
raise HwsimSkip("PMK-R0 not found while associated")
if pmkr1 not in buf:
raise HwsimSkip("PMK-R1 not found while associated")
if kck not in buf:
raise Exception("KCK not found while associated")
if kek not in buf:
raise Exception("KEK not found while associated")
if tk in buf:
raise Exception("TK found from memory")
if gtk in buf:
get_key_locations(buf, gtk, "GTK")
raise Exception("GTK found from memory")
logger.info("Checking keys in memory after disassociation")
buf = read_process_memory(pid, pmk)
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, pmkr0, "PMK-R0")
get_key_locations(buf, pmkr1, "PMK-R1")
# Note: PMK/PSK is still present in network configuration
fname = os.path.join(params['logdir'],
'ft_psk_key_lifetime_in_memory.memctx-')
verify_not_present(buf, pmkr0, fname, "PMK-R0")
verify_not_present(buf, pmkr1, fname, "PMK-R1")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
verify_not_present(buf, gtk, fname, "GTK")
dev[0].request("REMOVE_NETWORK all")
logger.info("Checking keys in memory after network profile removal")
buf = read_process_memory(pid, pmk)
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, pmkr0, "PMK-R0")
get_key_locations(buf, pmkr1, "PMK-R1")
verify_not_present(buf, pmk, fname, "PMK")
verify_not_present(buf, pmkr0, fname, "PMK-R0")
verify_not_present(buf, pmkr1, fname, "PMK-R1")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
verify_not_present(buf, gtk, fname, "GTK")