When connecting to a WPA-EAP network and the MAC address is changed
just before the association (for example by NetworkManager, which sets
a random MAC during scans), the authentication sometimes fails in the
following way ('####' logs added by me):
wpa_supplicant logs:
wlan0: WPA: RX message 1 of 4-Way Handshake from 02:00:00:00:01:00 (ver=1)
RSN: msg 1/4 key data - hexdump(len=22): dd 14 00 0f ac 04 d8 21 9d a5 73 98 88 26 ef 03 d2 ce f7 04 7d 23
WPA: PMKID in EAPOL-Key - hexdump(len=22): dd 14 00 0f ac 04 d8 21 9d a5 73 98 88 26 ef 03 d2 ce f7 04 7d 23
RSN: PMKID from Authenticator - hexdump(len=16): d8 21 9d a5 73 98 88 26 ef 03 d2 ce f7 04 7d 23
wlan0: RSN: no matching PMKID found
EAPOL: Successfully fetched key (len=32)
WPA: PMK from EAPOL state machines - hexdump(len=32): [REMOVED]
#### WPA: rsn_pmkid():
#### WPA: aa - hexdump(len=6): 02 00 00 00 01 00
#### WPA: spa - hexdump(len=6): 66 20 cf ab 8c dc
#### WPA: PMK - hexdump(len=32): b5 24 76 4f 6f 50 8c f6 a1 2e 24 b8 07 4e 9a 13 1b 94 c4 a8 1f 7e 22 d6 ed fc 7d 43 c7 77 b6 f7
#### WPA: computed PMKID - hexdump(len=16): ea 73 67 b1 8e 5f 18 43 58 24 e8 1c 47 23 87 71
RSN: Replace PMKSA entry for the current AP and any PMKSA cache entry that was based on the old PMK
nl80211: Delete PMKID for 02:00:00:00:01:00
wlan0: RSN: PMKSA cache entry free_cb: 02:00:00:00:01:00 reason=1
RSN: Added PMKSA cache entry for 02:00:00:00:01:00 network_ctx=0x5630bf85a270
nl80211: Add PMKID for 02:00:00:00:01:00
wlan0: RSN: PMKID mismatch - authentication server may have derived different MSK?!
hostapd logs:
WPA: PMK from EAPOL state machine (MSK len=64 PMK len=32)
WPA: 02:00:00:00:00:00 WPA_PTK entering state PTKSTART
wlan1: STA 02:00:00:00:00:00 WPA: sending 1/4 msg of 4-Way Handshake
#### WPA: rsn_pmkid():
#### WPA: aa - hexdump(len=6): 02 00 00 00 01 00
#### WPA: spa - hexdump(len=6): 02 00 00 00 00 00
#### WPA: PMK - hexdump(len=32): b5 24 76 4f 6f 50 8c f6 a1 2e 24 b8 07 4e 9a 13 1b 94 c4 a8 1f 7e 22 d6 ed fc 7d 43 c7 77 b6 f7
#### WPA: computed PMKID - hexdump(len=16): d8 21 9d a5 73 98 88 26 ef 03 d2 ce f7 04 7d 23
WPA: Send EAPOL(version=1 secure=0 mic=0 ack=1 install=0 pairwise=1 kde_len=22 keyidx=0 encr=0)
That's because wpa_supplicant computed the PMKID using the wrong (old)
MAC address used during the scan. wpa_supplicant updates own_addr when
the interface goes up, as the MAC can only change while the interface
is down. However, drivers don't report all interface state changes:
for example the nl80211 driver may ignore a down-up cycle if the down
message is processed later, when the interface is already up. In such
cases, wpa_supplicant (and in particular, the EAP state machine) would
continue to use the old MAC.
Add a new driver event that notifies of MAC address changes while the
interface is active.
Signed-off-by: Beniamino Galvani <bgalvani@redhat.com>
Add an event callback for EVENT_STATION_OPMODE_CHANGED to allow
user/application to get the notification whenever there is a change in a
station's HT/VHT op mode.
The new events:
STA-OPMODE-MAX-BW-CHANGED <addr> <20(no-HT)|20|40|80|80+80|160>
STA-OPMODE-SMPS-MODE-CHANGED <addr> <automatic|off|dynamic|static>
STA-OPMODE-N_SS-CHANGED <addr> <N_SS>
Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org>
When the driver indicates that the connection is authorized (i.e., the
4-way handshake was completed by the driver), cancel the EAP
authentication timeout and set the EAP state machine to success state.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Extend the SME functionality to support the external authentication.
External authentication may be used by the drivers that do not define
separate commands for authentication and association
(~WPA_DRIVER_FLAGS_SME) but rely on wpa_supplicant's SME for the
authentication.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
If the OWE network profile matches an open network which does not
advertise OWE BSS, allow open connection. The new owe_only=1 network
profile parameter can be used to disable this transition mode and
enforce connection only with OWE networks.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
If a specific DH group for OWE is not set with the owe_group parameter,
try all supported DH groups (currently 19, 20, 21) one by one if the AP
keeps rejecting groups with the status code 77.
Signed-off-by: Jouni Malinen <j@w1.fi>
Update the replay counter after a roam for all cases. This restores the
design back to what it was before commit
01ef320f19 ('FILS: Update ERP next
sequence number with driver offload').
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The new wpa_supplicant RESEND_ASSOC command can be used to request the
last (Re)Association Request frame to be sent to the AP to test FT
protocol behavior.
This functionality is for testing purposes and included only in builds
with CONFIG_TESTING_OPTIONS=y.
Signed-off-by: Jouni Malinen <j@w1.fi>
This can be used to test replay protection. The "RESET_PN" command in
wpa_supplicant and "RESET_PN <addr>" command in hostapd resets the local
counters to zero for the last configured key. For hostapd, the address
parameter specifies which STA this operation is for or selects GTK
("ff:ff:ff:ff:ff:ff") or IGTK ("ff:ff:ff:ff:ff:ff IGTK").
This functionality is for testing purposes and included only in builds
with CONFIG_TESTING_OPTIONS=y.
Signed-off-by: Jouni Malinen <j@w1.fi>
This was originally added to allow the IEEE 802.11 protocol to be
tested, but there are no known fully functional implementations based on
this nor any known deployments of PeerKey functionality. Furthermore,
PeerKey design in the IEEE Std 802.11-2016 standard has already been
marked as obsolete for DLS and it is being considered for complete
removal in REVmd.
This implementation did not really work, so it could not have been used
in practice. For example, key configuration was using incorrect
algorithm values (WPA_CIPHER_* instead of WPA_ALG_*) which resulted in
mapping to an invalid WPA_ALG_* value for the actual driver operation.
As such, the derived key could not have been successfully set for the
link.
Since there are bugs in this implementation and there does not seem to
be any future for the PeerKey design with DLS (TDLS being the future for
DLS), the best approach is to simply delete all this code to simplify
the EAPOL-Key handling design and to get rid of any potential issues if
these code paths were accidentially reachable.
Signed-off-by: Jouni Malinen <j@w1.fi>
Add support for using the OWE Transition Mode element to determine the
hidden SSID for an OWE BSS that is used in transition mode.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The new wpa_supplicant network parameter group_mgmt can be used to
specify which group management ciphers (AES-128-CMAC, BIP-GMAC-128,
BIP-GMAC-256, BIP-CMAC-256) are allowed for the network. If not
specified, the current behavior is maintained (i.e., follow what the AP
advertises). The parameter can list multiple space separate ciphers.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
IEEE Std 802.11-2016, 11.11.6 specifies that a station that is unable to
make a requested measurement or refuses to make a measurement shall
respond only if the measurement request was received within an
individually addressed radio measurement request frame, but shall not
respond if such a request was received in a group addressed frame.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
dpp.h file requires openssl in order to compile, which breaks
compilation on systems without it.
Move DPP_OUI_TYPE to ieee802_11_defs.h and don't include dpp.h when
not really needed.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Commit 5538fc9309 ('FILS: Track completion
with FILS shared key authentication offload') added an additional case
for calling wpa_supplicant_event_assoc_auth() from EVENT_ASSOC handling
in case of FILS-completion with driver-based-SME. However, that checked
what placed outside the data != NULL case while data != NULL needs to
apply for this case as well due to wpa_supplicant_event_assoc_auth()
behavior. Move the data != NULL check to apply to both cases to avoid
potentially issues if a driver interface were to return EVENT_ASSOC
without the associate data. (CID 164708)
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This new AKM is used with DPP when using the signed Connector to derive
a PMK. Since the KCK, KEK, and MIC lengths are variable within a single
AKM, this needs number of additional changes to get the PMK length
delivered to places that need to figure out the lengths of the PTK
components.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This adds support for DPP Configuration Protocol using GAS. Full
generation and processing of the configuration object is not included in
this commit.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Current DFS domain information of the driver can be used in ap/dfs
to comply with DFS domain specific requirements like uniform spreading
for ETSI domain.
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
Add a new PMKSA cache entry within wpa_supplicant if a driver event from
offloaded FILS shared key authentication indicates a new PMKSA entry was
created.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This keeps the internal ERP information within wpa_supplicant in sync
with the driver when offloading FILS shared key authentication.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Update the internal fils_completed state when offloading FILS shared key
authentication to the driver.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
In ap_scan=2 mode, wpa_supplicant_assoc_try() did not check whether the
SSID is temporarily disabled before trying to associate and this may
result in an infinite connect/disconnect loop. If the association
succeeds while the SSID is temporarily disabled, wpa_supplicant will
request to deauthenticate and that in turn will cause the SSID to be
temporarily disabled again. Fix that by postponing the association until
the SSID is no longer temporarily disabled.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
This adds an option to configure wpa_supplicant to use the perfect
forward secrecy option in FILS shared key authentication. A new build
option CONFIG_FILS_SK_PFS=y can be used to include this functionality. A
new runtime network profile parameter fils_dh_group is used to enable
this by specifying which DH group to use. For example, fils_dh_group=19
would use FILS SK PFS with a 256-bit random ECP group.
Signed-off-by: Jouni Malinen <j@w1.fi>
This adds STA side addition of OWE Diffie-Hellman Parameter element into
(Re)Association Request frame and processing it in (Re)Association
Response frame.
Signed-off-by: Jouni Malinen <j@w1.fi>
There's no point in making the code use a stack buffer and first copying
the string there, only to copy it again to the output. Make the output
directly use the reason string.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This allows PMKSA cache entries for FILS-enabled BSSs to be shared
within an ESS when the BSSs advertise the same FILS Cache Identifier
value.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This adds reason for timeout in event CTRL-EVENT-ASSOC-REJECT whenever
connection failure happens because of timeout. This extends the
"timeout" parameter in the event to include the reason, if available:
timeout=scan, timeout=auth, timeout=assoc.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Commit 8d1e693186 ('Use estimated
throughput to avoid signal based roaming decision') added a check for
the current BSS estimated throughput being significantly higher than the
selected BSS estimated throughput. However, this case for skipping a
roam used "return 1" which actually allows the roam. Fix this by
returning 0 in this case.
Signed-off-by: Jouni Malinen <j@w1.fi>
Increase the EAPOL RX frame timeout from 100 to 200 ms. This fixes lack
of optimization (i.e., first EAPOL frame dropped) in occasional roaming
and authentication cases on EAP networks if the kernel events can be
reordered and delayed a bit longer.
Signed-off-by: Tomoharu Hatano <tomoharu.hatano@sonymobile.com>
This adds a call to the notify_beacon_loss() callback functions when
beacon loss is detected. In addition, a new CTRL-EVENT-BEACON-LOSS event
is made available through the wpa_supplicant control interface.
Signed-off-by: Jouni Malinen <j@w1.fi>
Beacon Report Radio Measurement is defined in IEEE Std 802.11-2016,
11.11.9.1. Beacon Report is implemented by triggering a scan on the
requested channels with the requested parameters.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
This makes wpa_supplicant behavior more consistent with FLUSH command to
clear all state. Previously, it was possible for an ongoing scan to be
aborted when the FLUSH command is issued and the scan results from that
aborted scan would still be processed and that would update the BSS
table which was supposed to cleared by the FLUSH command.
This could result in hwsim test case failures due to unexpected BSS
table entries being present after the FLUSH command.
Signed-off-by: Jouni Malinen <j@w1.fi>
This provides more details on BSS selection process in the debug log.
Previously, the BSSs that were not either the current or the selected
one were not necessarily printed at all. Now all BSSs that match the
currently selected network are listed with their frequency and signal
strength details.
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, the estimated throughput was used to enable roaming to a
better AP. However, this information was not used when considering a
roam to an AP that has better signal strength, but smaller estimated
throughput. This could result in allowing roaming from 5 GHz band to 2.4
GHz band in cases where 2.4 GHz band has significantly higher signal
strength, but still a lower throughput estimate.
Make this less likely to happen by increasing/reducing the minimum
required signal strength difference based on the estimated throughputs
of the current and selected AP. In addition, add more details about the
selection process to the debug log to make it easier to determine whaty
happened and why.
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, a build without IBSS RSN support tried to start/join an IBSS
even if the profile was configured with RSN parameters. This does not
work and resulted in quite confusing debug log. Make this clearer by
explicitly checking for this case and reject the connection attempt with
a clearer debug log entry instead of trying something that is known to
fail.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Decrypt the AES-SIV protected elements and verify Key-Auth. Parse and
configure keys to the driver.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Scan results were not propagated to all interfaces if scan results
started a new operation, in order to prevent concurrent operations. But
this can cause other interfaces to trigger a new scan when scan results
are already available. Instead, always notify other interfaces of the
scan results, but note that new operations are not allowed.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
When scheduled scan stops without the interface request (for example,
driver stopped it unexpectedly), start a regular scan to continue
scanning for networks and avoid being left with no scan at all.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
In some cases, after a sudden AP disappearing and reconnection to
another AP in the same ESS, if another scan occurs, wpa_supplicant might
try to roam to the old AP (if it was better ranked than the new one)
because it is still saved in BSS list and the blacklist entry was
cleared in previous reconnect. This attempt is going to fail if the AP
is not present anymore and it'll cause long disconnections.
Remove an AP that is probably out of range from the BSS list to avoid
such disconnections. In particular mac80211-based drivers use the
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in locally generated
disconnection events for cases where the AP does not reply anymore.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
As the scan channels might need to change when the channel list has been
updated by the kernel. Use the simulated sched_scan timeout
(wpas_scan_restart_sched_scan()) to handle a possible race where an
ongoing sched_scan has stopped asynchronously while trying to restart a
new sched_scan.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Add a testing mechanism to allow association disallowed set by AP to be
ignored. This can be used to verify AP behavior for disallowing a
specific association.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Implement "SET ignore_auth_resp <0/1>" command to simulate auth/assoc
response loss and EAPOL RX packet loss by ignoring corresponding
incoming events.
Signed-off-by: Mikael Kanstrup <mikael.kanstrup@sonymobile.com>
