Benjamin Richter [Tue, 11 Oct 2016 03:57:38 +0000 (05:57 +0200)]
wpa_supplicant: Restore permanent MAC address on reassociation
With mac_addr=0 and preassoc_mac_addr=1, the permanent MAC address
should be restored for association. Previously this did not happen when
reassociating to the same ESS.
Signed-off-by: Benjamin Richter <br@waldteufel.eu>
Avraham Stern [Mon, 10 Oct 2016 15:22:09 +0000 (18:22 +0300)]
Always propagate scan results to all interfaces
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>
Joel Cunningham [Sat, 8 Oct 2016 17:04:15 +0000 (12:04 -0500)]
Check for NULL qsort() base pointers
There are a couple of places in wpa_supplicant/hostapd where qsort() can
be called with a NULL base pointer. This results in undefined behavior
according to the C standard and with some standard C libraries (ARM RVCT
2.2) results in a data abort/memory exception. Fix this by skipping such
calls since there is nothing needing to be sorted.
Signed-off-by: Joel Cunningham <joel.cunningham@me.com>
Jouni Malinen [Mon, 10 Oct 2016 21:25:20 +0000 (00:25 +0300)]
WPS: Force BSSID for WPS provisioning step connection
This was already done for most driver cases, but it is possible that the
BSSID/frequency is not forced if the driver reports BSS selection
capability (e.g., NL80211_ATTR_ROAM_SUPPORT). That could potentially
result in the driver ignoring the BSSID/frequency hint and associating
with another (incorrect) AP for the WPS provisioning step if that
another AP in the same ESS is more preferred (e.g., better signal
strength) by the driver and only one of the APs (the not preferred one)
is in active WPS registrar state.
While most drivers follow the BSSID hint for the initial connection to
an ESS, not doing it here for the WPS provisioning would break the
protocol. Fix this by enforcing a single BSSID/frequency to disallow the
driver from selecting an incorrect AP for the WPS provisioning
association.
ERP: Do not pass full EAP header to eap_peer_erp_reauth_start()
That function does not need the full EAP header -- it only needs to know
which EAP identifier to use in the message. Make this usable for cases
where the previous EAP message may not exist (FILS).
FILS: Use AEAD cipher to check received EAPOL-Key frames (STA)
This changes 4-way handshake authenticator processing to decrypt the
EAPOL-Key frames using an AEAD cipher (AES-SIV with FILS AKMs) before
processing the Key Data field. This replaces Key MIC validation for the
cases where AEAD cipher is used.
FILS: Use AEAD cipher to check received EAPOL-Key frames (AP)
This changes 4-way handshake authenticator processing to decrypt the
EAPOL-Key frames using an AEAD cipher (AES-SIV with FILS AKMs) before
processing the Key Data field. This replaces Key MIC validation for the
cases where AEAD cipher is used. This needs to move the EAPOL-Key msg
2/4 RSN element processing to happen only after the PTK has been derived
and validated. That is done for all AKMs to avoid extra complexity with
having to maintain two code paths for this.
FILS: Use AEAD cipher to protect EAPOL-Key frames (STA)
This modifies wpa_eapol_key_send() to use AEAD cipher (AES-SIV for FILS
AKMs) to provide both integrity protection for the EAPOL-Key frame and
encryption for the Key Data field. It should be noted that this starts
encrypting the Key Data field in EAPOL-Key message 2/4 while it remains
unencrypted (but integrity protected) in non-FILS cases. Similarly, the
empty Key Data field in EAPOL-Key message 4/4 gets encrypted for AEAD
cases.
wlantest: Recognize EAPOL-Key frames without MIC bit for FILS
The new AEAD AKM option in FILS sets the MIC bit in EAPOL-Key frames to
0 for some ciphers, so the determination of EAPOL-Key frame types needs
changes to work with these cases.
Make struct wpa_eapol_key easier to use with variable length MIC
Suite B 192-bit addition from IEEE Std 802.11ac-2013 replaced the
previous fixed length Key MIC field with a variable length field. That
change was addressed with an addition of a new struct defined for the
second MIC length. This is not really scalable and with FILS coming up
with a zero-length MIC case for AEAD, a more thorough change to support
variable length MIC is needed.
Remove the Key MIC and Key Data Length fields from the struct
wpa_eapol_key and find their location based on the MIC length
information (which is determined by the AKMP). This change allows the
separate struct wpa_eapol_key_192 to be removed since struct
wpa_eapol_key will now include only the fixed length fields that are
shared with all EAPOL-Key cases in IEEE Std 802.11.
Jouni Malinen [Mon, 10 Oct 2016 17:23:57 +0000 (20:23 +0300)]
tests: Update eap_proto_psk_errors and ap_wpa2_eap_psk_oom
The extension of aes_128_ctr_encrypt() to allow AES-192 and AES-256 to
be used in addition to AES-128 for CTR mode encryption resulted in the
backtrace for the function calls changing. Update the test cases that
started failing due to that change.
Jouni Malinen [Mon, 10 Oct 2016 16:27:57 +0000 (19:27 +0300)]
Extend AES-SIV implementation to support different key lengths
The previous implementation was hardcoded to use 128-bit AES key
(AEAD_AES_SIV_CMAC_256). Extend this by allowing AEAD_AES_SIV_CMAC_384
and AEAD_AES_SIV_CMAC_512 with 192-bit and 256-bit AES keys.
Michael Braun [Sat, 24 Sep 2016 20:53:42 +0000 (22:53 +0200)]
FT: Allow PMK-R0 and PMK-R1 for FT-PSK to be generated locally
Station should be able to connect initially without ft_pmk_cache filled,
so the target AP has the PSK available and thus the same information as
the origin AP. Therefore neither caching nor communication between the
APs with respect to PMK-R0 or PMK-R1 or VLANs is required if the target
AP derives the required PMKs locally.
This patch introduces the generation of the required PMKs locally for
FT-PSK. Additionally, PMK-R0 is not stored (and thus pushed) for FT-PSK.
So for FT-PSK networks, no configuration of inter-AP communication is
needed anymore when using ft_psk_generate_local=1 configuration. The
default behavior (ft_psk_generate_local=0) remains to use the pull/push
protocol.
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
Jouni Malinen [Sat, 8 Oct 2016 16:43:36 +0000 (19:43 +0300)]
EAP-pwd: Validate Prep field in EAP-pwd-ID/Response
RFC 5931 Section 2.8.5.1 does not list the Prep field as something that
the server validates to match the Request. However, the supplicant side
has to use the same pre-processing mechanism for the password for the
authentication to work, so we may as well as enforce this field to match
the requested value now that wpa_supplicant implementation is fixed to
copy the value from the request.
Brian Candler [Sat, 8 Oct 2016 07:09:07 +0000 (08:09 +0100)]
EAP-pwd: Fix Prep in EAP-pwd-ID/Response when EAP_PWD_PREP_MS is used
Fix the pre-processing field in the response when EAP_PWD_PREP_MS is
being used. This fixes interoperability with EAP-pwd servers that
validate the Prep field in EAP-pwd-ID/Response when the RFC2759
(PasswordHashHash) pre-processing is used.
Signed-off-by: Brian Candler <B.Candler@pobox.com>
Sabrina Dubroca [Fri, 7 Oct 2016 10:08:10 +0000 (12:08 +0200)]
mka: Pass full structures down to macsec drivers' receive SC ops
Clean up the driver interface by passing pointers to struct receive_sc
down the stack to the {create,delete}_recevie_sc() ops, instead of
passing the individual properties of the SC.
Sabrina Dubroca [Fri, 7 Oct 2016 10:08:09 +0000 (12:08 +0200)]
mka: Pass full structures down to macsec drivers' transmit SC ops
Clean up the driver interface by passing pointers to struct transmit_sc
down the stack to the {create,delete}_transmit_sc() ops, instead of
passing the individual arguments.
Lior David [Sun, 25 Sep 2016 09:29:07 +0000 (12:29 +0300)]
Add QCA vendor attributes for measurement frequency for FTM/AOA
Add attributes for specifing the frequency where FTM/AOA measurement is
done over the air. This allows the user space framework to maintain its
own cache of peers without depending on the kernel scan results cache,
or perform scans less often (since entries in the kernel scan results
cache expire quickly). The change is backward compatible. If the
frequency attribute is not specified, the kernel scan results cache will
be queried, like done today.
Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
mka: Pass full structures down to macsec drivers' receive SA ops
Clean up the driver interface by passing pointers to struct receive_sa
down the stack to the {create,enable,disable}_receive_sa() ops, instead
of passing the individual properties of the SA.
mka: Pass full structures down to macsec drivers' transmit SA ops
Clean up the driver interface by passing pointers to struct transmit_sa
down the stack to the {create,enable,disable}_transmit_sa ops, instead
of passing the individual properties of the SA.
mka: Pass full structures down to macsec drivers' packet number ops
Clean up the driver interface by passing pointers to structs transmit_sa
and receive_sa down the stack to get_receive_lowest_pn(),
get_transmit_next_pn(), and set_transmit_next_pn() ops, instead of
passing the individual arguments.
mka: Move structs {transmit,receive}_{sa,sc} to a common header
These structs will be passed down to macsec drivers in a coming patch to
make the driver interface cleaner, so they need to be shared between the
core MKA implementation and the drivers.
Jouni Malinen [Mon, 3 Oct 2016 08:35:42 +0000 (11:35 +0300)]
tests: Fix wpas_ctrl_sched_scan_plans without WPA_TRACE
This test case did not clear sched_scan_plans if alloc_fail() resulted
in skipping the test case. This would result in the following
autoscan_exponential and autoscan_periodic test cases failing.
In case that a dedicated P2P Device interface is used, a new interface
must be create for a P2P group. Thus, in order to send mgmt
frames, attach a new WpaSupplicant object to the newly created group
and use this object for sending the frames.
Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Ilan Peer [Mon, 5 Sep 2016 14:33:08 +0000 (17:33 +0300)]
tests: Use global control interface to remove P2P networks
Use the global control interface to remove P2P networks in
persistent_group_peer_dropped3 to support configurations that use a
dedicated P2P Device interface.
tests: Fix p2p_ext_vendor_elem_assoc test with P2P Device interface
For configurations that use a dedicated P2P Device interface, which
mandates that a separate interface is used for the P2P group, vendor
specific IE's must be added to the VENDOR_ELEM_P2P_* frame types in
order to be used by the P2P group interface. The VENDOR_ELEM_ASSOC_REQ
(13) parameter would need to be issued on the group interface which
would be challenging to do due to timing in case a separate group
interface gets used.
In case a dedicated P2P Device interface is used, don't include a test
for VENDOR_ELEM_ASSOC_REQ to avoid failing this part of the test case.
PNO is sometimes restarted due to changes in scan parameters
(e.g., selected network changed or MAC randomization being
enabled/disabled). Restart is done by stopping PNO and immediately
starting it again. This may result in the SCHED_SCAN_STOPPED event being
received after the request for new PNO, which will make wpa_supplicant
believe PNO is not active although it is actually is. As a result, the
next request to start PNO will fail because PNO is active and should be
stopped first.
Fix this by deferring the request to start PNO until the
SCHED_SCAN_STOPPED event is received in case sched_scan is being
stopped.
Continue scanning if sched_scan stops unexpectedly
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.
David Spinadel [Mon, 5 Sep 2016 14:33:07 +0000 (17:33 +0300)]
Remove disconnected APs from BSS table if likely out-of-range
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>
tests: Fix ap_track_taxonomy to clear country code setting
This test case could have ended with the station devices still in US
regulatory domain and that could make a following test case fail in some
sequences. For example, "ap_track_taxonomy ibss_5ghz" sequence made
ibss_5ghz fail to see the regdom change event since there was not one
due to the US country code already being in use at the beginning of the
test case. Fix this by clearing the country code at the end of
ap_track_taxonomy.
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.
MBO: Add support to send ANQP request to get cellular preference
This extends ANQP_GET command to support querying MBO cellular
preference also. The cellular preference can be requested along with
neigbor report by appending mbo:1 to the command arguments.
Share a common helper function for restarting sched_scan
This code sequence was already used at two different places (and an
additional one has been proposed), so add a common helper function to
avoid having to copy-paste this functionality in multiple locations.
The user space app use QCA_NL80211_VENDOR_SUBCMD_GET_CHAIN_RSSI cmd to
get the corresponding antenna rssi value for the specific chain. And the
associcated attributes are added to configure the antenna diversity and
related selftest.
MBO: Do not add reason_detail in non_pref_chan attr (STA)
The reason detail field in non_pref_chan attribute was removed from MBO
draft v0.0_r25, so the STA should not include this field to be compliant
with the latest draft.
WNM: Add testing option to reject BSS Transition Management Request
For testing purposes, it is useful to have an option to be able to
reject BTM Request sent by AP in order to verify the AP behavior upon
BTM Request rejection.
MBO: Add QCA vendor option to configure driver to ignore assoc disallow
MBO capable APs can set association disallowed in the Beacon/Probe
Response frames. For testing purposes, the STA needs to be configured to
not ignore the association disallowed set by APs and continue to connect
to such AP like non-MBO enabled STA. Add a QCA vendor attribute for
QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION vendor sub command to
configure the driver to ignore association disallowed functionality.
MBO: Add support to ignore association disallowed set by AP
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.
Mikael Kanstrup [Tue, 20 Sep 2016 06:40:06 +0000 (08:40 +0200)]
tests: Add testcase for reconnect failure due to auth timeout
Add testcase to verify a failed reconnect attempt due to authentication
timeout blacklists the correct AP. Driver capabilities are forced to
non-SME and driver roaming (BSS selection) mode.
Signed-off-by: Mikael Kanstrup <mikael.kanstrup@sonymobile.com>
Mikael Kanstrup [Tue, 20 Sep 2016 06:40:05 +0000 (08:40 +0200)]
tests: Add testcase for (reassoc) roam failure due to auth timeout
Add testcase to verify failed roaming attempt due to authentication
timeout blacklists the correct AP. Roaming attempt is performed
with the reassociate command and bssid_set=1. Driver capabilities
are forced to non-SME and driver roaming (BSS selection) mode.
Signed-off-by: Mikael Kanstrup <mikael.kanstrup@sonymobile.com>
Mikael Kanstrup [Tue, 20 Sep 2016 06:40:04 +0000 (08:40 +0200)]
Add ignore_auth_resp control interface debug parameter
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>
Mikael Kanstrup [Tue, 20 Sep 2016 06:40:03 +0000 (08:40 +0200)]
nl80211: Add driver parameter force_bss_selection
Add driver parameter command to force capability flag
WPA_DRIVER_FLAGS_BSS_SELECTION even if driver states otherwise. This is
mainly for testing purposes.
Signed-off-by: Mikael Kanstrup <mikael.kanstrup@sonymobile.com>
Mikael Kanstrup [Tue, 20 Sep 2016 06:40:07 +0000 (08:40 +0200)]
Blacklist correct BSSID on authentication timeout
If authentication times out while reassociating to same ESS incorrect
BSSID may end up being blacklisted. Use pending_bssid field on
authentication timeout and deauthentication to ensure the correct AP
gets blacklisted. This is mainly to address cases related to Android
framework roaming behavior.
Signed-off-by: Mikael Kanstrup <mikael.kanstrup@sonymobile.com>
tests: Make pmksa_cache_{,opportunistic_}multiple_sta more robust
Clear wpa_supplicant scan cache before starting these test cases since
the ROAM command depends on the correct BSS entry being found.
scan_for_bss() does not enforce that correct entry to be present if
there was an earlier BSS entry with the same BSSID.
This moves the wpa_supplicant debug entries from the end of a test case
using a dynamically added wlan5 interface to the correct test case,
i.e., the test case that added the interface instead of whatever test
case happens to follow this.