Commit 17a2aa822c ("WNM: Follow BTM procedure if the last link is
dropped") added code to store either the MLD MAC address or BSSID when
being disassociated. However, it did not save which one was stored
making the tests later on awkward.
Store whether it was an MLD MAC address or not and then do the test
accordingly.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Commit e508c070c4 ("WNM: Keep BTM information until connection
completes") changed the logic so that much of the information about a
transition management request will be kept around for longer. However,
doing this also implies that the scan logic can be called multiple times
with wnm_dialog_token being set.
Add a guard to bail out if the scan was not done for a BTM request. But,
add it after the transition candidate validity check so that we reset
the state when a new scan invalidated it.
However, invalidation does not make sense for any scan, primarily an ML
probe request during a connection attempt should not trigger
invalidation. So move the call to wnm_scan_process() further down in the
list to avoid issues.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
wpa_supplicant select_network() relies on fast_associate to reuse old
scan results. However, this approach does not apply in some cases in
Android:
1 - If the selected network is hidden, and the SSID is in Chinese,
Android switches between fallback SSIDs, necessitating a new scan for
switching between different hidden SSIDs.
2 - Similarly, if the selected SSID is OWE (Opportunistic Wireless
Encryption), and the OWE SSID bands have been changed, select_network()
requires a fresh scan to discover hidden OWE SSIDs.
To address these, enhance select_network() to trigger new scans instead
of relying on fast_associate. This improves network selection behavior
in Android.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
Add support for RSNE/RSNXE Override elements. Use these elements to
determine AP's extended RSN parameters.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
Instead of checking the latest scan results every second indefinitely,
add more latency between the checks in case the driver does not update
the time stamp value (i.e., does not report new Beacon frames during an
association).
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
If SSID was not verified during the initial setup of an association, but
beacon protection was negotiated, try verify the SSID based on Beacon
frames that have been received after the first BIGTK has been
configured.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
The new "bigtk_set=1" entry in the control interface STATUS command
output indicates that a BIGTK has been successfully configured. This
shows that beacon protection has been enabled for the current
association.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
Add a new "ssid_verified=1" entry into the control interface STATUS
command output if the SSID has been verified for the current
association. This verification may have been done implicitly (e.g., with
SAE H2E and FT protocol binding in the SSID into key derivation or with
FILS protecting the SSID element in the (Re)Association Request frame)
or explicitly with the recently added SSID protection mechanism during
the 4-way handshake.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
wpa_supplicant used to maintain the list of rejected groups for SAE over
multiple failed attempts. This could have some DoS issues, so clear this
list if SAE authentication attempts fails continuously.
Signed-off-by: Jouni Malinen <j@w1.fi>
In the MLD case, the information from the transition management request
is relevant during the association process in order to filter out links
that were disallowed by the BTM request. Also, the information remains
useful should a connection attempt fail.
To enable these scenarios, keep the information around until the
connection has completed. As this might make it impossible to establish
a connection, also clear this information at the same time that a normal
BSS ignore is cleared to avoid getting stuck in case the transition
fails unexpectedly.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
If the last link is dropped, it makes sense to follow the BTM procedure.
However, in that case we need to prevent reconnection to this link
specifically, while if the AP MLD is terminating we need to forbid
connecting to the AP MLD.
As such, add a new variable to track the BSSID or AP MLD MAC address.
Which one it refers to depends on whether wnm_link_removal is set.
This also simplifies the check in wnm_is_bss_excluded() and untangles it
from wpa_s->current_bss.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
The elements are (currently) not used except for sending an immediate
response similar to COLOC_INTF_REPORT with the main difference being
that the dialog token is included.
Do not store the elements. It easy enough to re-add this should the
implementation improve. And this fixes the fact that the variable is
cleared at odd times as wnm_deallocate_memory() is used specifically to
clear the neighbor report list of a BTM request.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
When accepting a BSS transition request there is a race between
sending the response and roaming to the target AP. As a result,
the response may not be sent because the station deauthenticated
from the AP before the response was actually sent.
To make sure the BSS transition response is sent, start roaming only
after the TX status is received for the BSS transition response.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Avoid potential race conditions with the driver operations between
stopping an ongoing wait for responses for an offchannel TX that was
used to send Authentication Request with a request to use a different
channel for Authentication Response and the start of a new ROC on the
other channel by waiting for the TX expiration event before issuing the
ROC request.
Signed-off-by: Jouni Malinen <j@w1.fi>
Avoid potential race conditions with the driver operations between
cancelling an ongoing ROC that was used to receive Authentication
Request that requested a different channel to be used for the
negotiation by waiting for the ROC cancelled event before issuing the
offchannel TX command for the Authentication Response.
In addition, speed up the retry on Authentication Response in this type
of a case if the first attempt on the other channel is not AKC'ed since
it might take the peer device a bit more time to be ready to listen
there.
Signed-off-by: Jouni Malinen <j@w1.fi>
When wpa_supplicant receives a request to start a P2P group owner on a
fixed frequency with bandwidth wider than 20 MHz, wpa_supplicant scans
for neighboring BSSs prior to starting the GO. This is done to switch
the primary/secondary channels if there are any other networks which are
operating on the same secondary channel. Though this logic is defined
for 20/40 MHz coexistence and might improve throughput, there are P2P
use cases where this logic causes problem:
1. The file transfer use case takes time to start the file transfer or
even fails when the 20/40 coex scan repeatedly fails due to an
ongoing externally triggered scan happening in the system.
2. wpa_supplicant overrides the channel which is selected by the
application based on the best channel it derived by looking into
the channel conditions. This degrades the expected throughput.
3. Latency sensitive applications experience long time to
start the group owner which gives a bad user experience.
So do not allow 40 MHz co-ex PRI/SEC switch to force a change to
Autonomous GO PRI channel when the P2P group add is called with a forced
frequency.
Test: Tested autonomous GO and confirmed from the logs that
P2P GO is not triggering 20/40 coex scan.
Signed-off-by: Sunil Ravi <sunilravi@google.com>
Add wpa_supplicant support for interacting with the NAN discovery engine
to allow USD as Publisher or Subscriber.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
Allow the Timeout Interval Type field in the Timeout Interval element to
be overridden with a different value for testing purposes to be able to
bypass the association comeback processing in mac80211. This allows the
wpa_supplicant internal functionality to be tested.
Signed-off-by: Jouni Malinen <j@w1.fi>
In associations using PMF (IEEE 802.11w/MFP), the infrastructure
implements SA teardown protection by rejecting an (Re)Association
Request frame from an already-associated client. The AP responds with
error 30 (Association request rejected temporarily) to instruct the
(potentially spoofing) client to back off, while it issues an SA Query
procedure to the already-associated client. If the client can respond to
it within the back-off period, it considers the new association to be a
spoof attempt.
However, there are cases where a legitimate client might need to
handle this error response - consider if the STA has deauthenticated,
but the AP cannot hear it (out of range). If the MFP STA has deleted
its keys, it cannot respond to the SA Query procedure.
This association comeback process has commonly been implemented in the
driver, e.g., within mac80211 in case of the Linux drivers that use SME
in userspace. However, there are drivers that do not implement this
functionality. Extended wpa_supplicant to cover such cases as well.
The current implementation interprets this association error as a true
error, and will either add the BSS to the list of ignored BSSIDs, or
continue to try other BSSes. This can cause wpa_supplicant to back off
trying to reconnect for progressively longer intervals, depending on the
infrastructure's configured comeback timeout.
Allow wpa_supplicant to interpret the error, searching for the Timeout
Interval element in the (Re)Association Response frame and starting a
timer in the SME layer to re-associate after the timeout. This can be a
long delay (1-4 seconds in my experience), but it is likely much shorter
than bouncing between nearby BSSes.
This does not change behavior for drivers that implement association
comeback timer internally since they do not report the temporary
association rejection status code to user space.
Signed-off-by: Harry Bock <hbock@zebra.com>
Decrease the roam difficulty when roaming across the short background
scan threshold (i.e., when the current BSS RSSI is below the threshold
and the selected BSS RSSI is above the threshold). This tends to happen
in normal roaming scenarios when moving from the domain of one AP to
the domain of another.
Signed-off-by: Matthew Wang <matthewmwang@chromium.org>
The target MAC address needs to be checked against all the AP MLD link
addresses and the MLD MAC address to cover all possible cases. This is
needed to be able to correctly use Protected Dual of Public Action
frames during an ML association.
Signed-off-by: Jouni Malinen <j@w1.fi>
An affiliated AP of an AP MLD can temporarily be disabled. Other
affiliated APs of the AP MLD indicate this in the Reduced Neighbor
Report (RNR) elements added to their Beacon and Probe Response frames.
When an affiliated AP is disabled, it should be included in the
association exchange, but can be activated only after it is enabled.
Add support identifying disabled APs and propagate the information
to the driver within the associate() callback.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Instead of rejecting the request, accept it since the AP MLD is in
control of which links are available and we are not being fully
disconnected in this case.
Signed-off-by: Jouni Malinen <j@w1.fi>
For a memory constrained system, it may be more important to reduce
binary size than include support for these capabilities.
By default this is enabled.
Signed-off-by: Chaitanya Tata <Chaitanya.Tata@nordicsemi.no>
Parse the link status values out of Multi-Link association response. If
the AP rejects ML association and marks the links as failed with a
reason code other than TX_LINK_NOT_ACCEPTED, also report these links to
wpas_connection_failed() and ignore them.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
If the currently available scan results include OWE transition mode BSS
with an unknown SSID, optimize the following scan for OWE to use only
the channels on which a known transition mode BSS has been seen.
This is needed to be able to remove the design that updates BSS entries
with the learned OWE SSID in manner that does not result in regression
to scanning latencies.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
Since wpa_supplicant version 2.10 the extended capabilities MSCS and SCS
are advertised in the (Re)Association Request frames.
This causes the association request to be rejected by several access
points. Issue was observed with:
- D-Link DIR600
- TP-Link AC1900
- Synology MR2200ac
To avoid this issue the extended capabilities MSCS and SCS shall only be
added if the bss also supports them. While this may not follow the exact
behavior described in IEEE 802.11, this is a reasonable compromise to
avoid interoperability issues since these capabilities cannot be used
with an AP that does not support them anyway.
Note: The Extended Capabilities element is only included in the
Association Request frames if the AP also sent its extended capabilities
(see wpas_populate_assoc_ies()) as a workaround for misbehaving APs.
This workaround exists since version 2.1.
Signed-off-by: Sebastian Priebe <sebastian.priebe@konplan.com>
Drivers will often report regdom changes in the middle of a scan if they
detect during that scan that the regulatory domain has changed. If this
happens and we enter a regdom that supports 6 GHz channels when the
previous one didn't (this often happens in 6 GHz-capable regdoms for
devices after suspend/resume), immediately trigger a 6 GHz-only scan if
we were not able to connect to an AP on a legacy band.
This should significantly improve connection time to 6 GHz AP after
regdom has been reset.
Signed-off-by: Matthew Wang <matthewmwang@chromium.org>
Store 6 GHz capability on channel list update for wpa_supplicant use.
This will be used in the next commit to extend scanning behavior based
on changes to 6 GHz channel availability.
Signed-off-by: Matthew Wang <matthewmwang@chromium.org>
Add support for building and sending ML probe requests. During connect,
try to send an ML probe request if we are going to connect to an MLD AP
and the BSS information for some of the links is missing.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Per IEEE P802.11be/D4.0, 9.4.2.316 (QoS Characteristics element), enable
support for the following optional QoS Characteristics parameters:
- Maximum MSDU Size
- Service Start Time
- Service Start Time LinkID
- Mean Data Rate
- Delayed Bounded Burst Size
- MSDU Lifetime
- MSDU Delivery Info
- Medium Time
Signed-off-by: Purushottam Kushwaha <quic_pkushwah@quicinc.com>
Add support to configure the mandatory QoS Characteristics parameters
per IEEE P802.11be/D4.0, 9.4.2.316 (QoS Characteristics element), in SCS
request:
- Minimum Service Interval
- Maximum Service Interval
- Minimum Data Rate
- Delay Bound
Enable STA SCS traffic descriptor support for EHT connection when the
connected EHT AP advertises SCS traffic descriptor capability in the EHT
Capabilities element.
Signed-off-by: Purushottam Kushwaha <quic_pkushwah@quicinc.com>
Set WFA capability to allow non-EHT SCS Traffic support in association
elements when the AP advertises support for non-EHT SCS Traffic support
via Beacon or Probe Response frame. This capability is upper layer
functionality and as such, does not need a separate driver capability
indication or configuration, but indicate this only if the AP supports
the feature to minimize risk of interoperability issues with a new
information element.
Signed-off-by: Purushottam Kushwaha <quic_pkushwah@quicinc.com>
Fix the warning:
wpa_supplicant.c:2257:5: warning: conflicting types for
‘wpas_update_random_addr’ due to enum/integer mismatch; have ‘int(struct
wpa_supplicant *, enum wpas_mac_addr_style, struct wpa_ssid *)’
[-Wenum-int-mismatch]
2257 | int wpas_update_random_addr(struct wpa_supplicant *wpa_s,
| ^~~~~~~~~~~~~~~~~~~~~~~
In file included from wpa_supplicant.c:32:
wpa_supplicant_i.h:1653:5: note: previous declaration of
‘wpas_update_random_addr’ with type ‘int(struct wpa_supplicant *, int,
struct wpa_ssid *)’
1653 | int wpas_update_random_addr(struct wpa_supplicant *wpa_s, int
style,
| ^~~~~~~~~~~~~~~~~~~~~~~
Fixes: 1d4027fdbe ("Make random MAC address style parameters use common enum values")
Signed-off-by: Chien Wong <m@xv97.com>
Add mesh_eht_enabled and eht ssid configuration parameters to include
EHT Capability and EHT Operation elements in mesh PLINK Action frames.
Update mesh_eht_enabled from EHT capability advertised for mesh mode.
Signed-off-by: Sathishkumar Muruganandam <quic_murugana@quicinc.com>
Signed-off-by: Ramya Gnanasekar <quic_rgnanase@quicinc.com>
Allow clients to specify the BSSID of an auto GO. If the auto GO has been
discovered on another interface, optimize scan frequency by performing
a single channel scan first. Android and ChromeOS use this to streamline
auto GO discovery.
Signed-off-by: Matthew Wang <matthewmwang@chromium.org>
Enable MLO for SAE authentication when the driver indicates the AP MLD
address in an external authentication request. The MAC address of the
interface on which the external authentication request received will be
used as the own MLD address.
This commit does below for enabling MLO during external SAE
authentication:
- Use MLD addresses for SAE authentication.
- Add Basic Multi-Link element with the own MLD address in SAE
Authentication frames.
- Send SAE Authentication frames with the source address as the own MLD
address, destination address and BSSID as the AP MLD address to the
driver.
- Validate the MLD address indicated by the AP in SAE Authentication
frames against the AP MLD address indicated in external authentication
request.
- Store the PMKSA with the AP MLD address after completing SAE
authentication.
Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>
It was possible to hit a case where the SAE PT had not yet been derived,
e.g., when using P2P group re-invocation. Update PT use at the time
authentication is started, if needed, to avoid this. While this is not
really ideal from the externally observable timing view point, this is
done only for the case where there is no other option available with a
dynamically changing network configuration for P2P. Similar design was
already in place for the SAE offload-from-driver (external auth) case.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
This makes the implementation more readable by sharing the same set of
enum values for all the parameters related to what kind of random MAC
addresses are used.
Signed-off-by: Jouni Malinen <j@w1.fi>
If the CreateInterface command was used to create a virtual AP
interface, deleting this interface using the RemoveInterface command was
also bringing down the primary interface.
wpa_supplicant never uses hostapd style multi-BSS setup with
type=WPA_IF_AP_BSS and setup_ap=1 to if_add() when creating an AP
interface in wpa_driver_nl80211_if_add(), so it should not go through
the multi-BSS tear down procedure in wpa_driver_nl80211_if_remove(). The
virtual AP resources init and deinit are well handled in
wpa_driver_nl80211_init() and wpa_driver_nl80211_deinit().
Collapse the interface type to WPA_IF_STATION for the D-Bus interface to
skip the multi-BSS cleanup procedure. This is inline with the control
interface design. Add comments before the code to avoid confusion.
Signed-off-by: Jintao Lin <jintaolin@chromium.org>
In case both the local driver and the AP support MLD, request an MLD
authentication from the driver. When processing the authentication event
from the driver verify that the MLD address in the authentication data
matches that of the requested AP.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Add support to handle external authentication request with a different
SAE AKM suite compared to the current connection AKM suite. This is
needed to support cross AKM roaming between SAE and SAE-EXT-KEY AKM
suites.
Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>
MAX_NUM_MLD_LINKS is 15, thus u8 isn't enough for the bitmap. Fix it.
While at it, clean MLO information better.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Allows informing the connection manager of additional information on CQM
events. Allows the connection manager to request the same information
on demand by using the existing "SignalPoll" method.
* Add new property "SignalChange"
* Add storage for wpa_signal_info into wpa_supplicant context
object
* Copy memory from event to context object on CQM Event
* Write a common conversion method to be used by both "SignalPoll" and
this property
Signed-off-by: David Ruth <druth@chromium.org>
