The previous os_strncmp() calls have already verified that there is a
space in the string, so this os_strchr() call cannot really return NULL.
Anyway, make this easier for static analyzers to understand.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
put_changed_properties() might fail, e.g., due to memory allocation
failure or a failure in a property getter function. Such an error case
would have leaked the message iteration container since the call to
dbus_message_iter_close_container() would have been skipped.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
When removing the bootstrap info for the PB context, all the possible
pointers to that information needs to be cleared to avoid accesses to
freed memory.
Fixes: 37bccfcab8 ("DPP3: Push button bootstrap mechanism")
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>
Add HS20TermsAndConditions signal to D-Bus API to allow clients to be
notified when the network requires the acceptance of terms and
conditions. The URL of the T&C page is provided as a signal parameter.
Signed-off-by: Damien Dejean <damiendejean@chromium.org>
Allow the Key Data field to be encrypted in EAPOL-Key msg 2/4 and 4/4.
This is for testing purposes to enable a convenient mechanism for
testing Authenticator behavior with either potential future extensions
or unexpected Supplicant behavior.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
Allow additional elements and KDEs to be added to EAPOL-Key msg 2/4 and
4/4. This is for testing purposes to enable a convenient mechanism for
testing Authenticator behavior with either potential future extensions or
incorrect Supplicant behavior.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
There are multiple redundant MIN macro declarations, some of which are
not protecting against side effects. Move it to common.h instead.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
There is currently a bias towards moving to higher bands but not one
against moving away from them. Fix that.
Signed-off-by: Matthew Wang <matthewmwang@chromium.org>
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>
These updates do not cause the PMKSA cache to become invalid. As such,
allow setting any of bssid_hint, bssid_ignore, and bssid_accept without
clearing the cache and causing the current connection to be dropped
immediately.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
If the Authentication frame response did not contain the expected ML
element (or it was invalid), we cannot continue with the ML association.
As such, the only choice we have in this case is to abort the
association.
If we do continue, we would end up sending the Association Request frame
with our MLD MAC address.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
The previous implementation would find the correct TBTT record in the
RNR but then always copied the BSSID from the first record out. Fix this
to copy the BSSID from the current position.
Fixes: de5e01010c ("wpa_supplicant: Support ML probe request")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Compare the BSSID against the BSSIDs on the affiliated APs for which
there is a valid link in case of an ML association.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
The dpp_test DPP_TEST_STOP_AT_AUTH_CONF case is supposed to prevent the
GAS exchange from happening. It was possible to bypass that testing
functionality if the TX status event for the Authentication Confirm
message was lost or delayed long enough for the GAS Request to be
proessed first. This could happen at least with UML time travel.
Work around this by checking for the special dpp_test case within GAS
request handling.
Signed-off-by: Jouni Malinen <j@w1.fi>
The Extended Request subelement of a Beacon Request is expected to also
include the Requested Element ID field (that identifies the Element ID
used to indicated extended elements) which needs to be skipped to get
the Requested Element ID Extensions.
Fixes: 2d4f905214 ("RRM: Add support for including extended ID elements in beacon report")
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Align MSCS response handling as described in IEEE P802.11-REVme/D4.0,
11.25.3 (MSCS procedures):
AP may send unsolicited MSCS Response frame using dialog_token == 0.
Instead of dropping the frame due to dialog_token mismatch, accept
it and set the status accordingly.
Signed-off-by: Daniel Gabay <daniel.gabay@intel.com>
Align MSCS response handling as described in IEEE P802.11-REVme/D4.0,
11.25.3 (MSCS procedures):
If an MSCS Descriptor element is present in a MSCS Response
frame that does not indicate a status of "SUCCESS", the request
type field is set to "change" - the element indicates a suggested
set of parameters that could be accepted by the AP in response to a
subsequent request by the non-AP STA.
Handle both MSCS Response frame and (Re)Association Response frame with
change request by extending WPA_EVENT_MSCS_RESULT with the change
values.
Note: since we extend MSCS_RESULT event, move the original event from
both MSCS Response frame and (Re)Association Response frame handlers to
a common function that handles now both 'change' and other response.
Signed-off-by: Daniel Gabay <daniel.gabay@intel.com>
This was done with spatch using the following semantic patch and minor
manual edits to clean up coding style and avoid compiler warnings in
driver_wext.c:
@@
expression a,b;
@@
- os_memcmp(a, b, ETH_ALEN) == 0
+ ether_addr_equal(a, b)
@@
expression a,b;
@@
- os_memcmp(a, b, ETH_ALEN) != 0
+ !ether_addr_equal(a, b)
@@
expression a,b;
@@
- !os_memcmp(a, b, ETH_ALEN)
+ ether_addr_equal(a, b)
Signed-off-by: Jouni Malinen <j@w1.fi>
Fix build of wpa_supplicant if bgscan_simple is enabled while
WNM is not, as in the defconfig.
Fixes: ceb7f65dcc ("bgscan: Allow simple bgscan to do BTM queries")
Signed-off-by: Chien Wong <m@xv97.com>
As otherwise the mld_link_id would be 0, which the driver would
consider a valid link id and would return an error.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
We should be grabbing the include directory using pkg-config and not
just the libs. Without this, the header file might not be found on all
systems because it may not be in /usr/include but elsewhere in the
system.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
_FORTIFY_SOURCE requires at least -O2 optimization level.
This may result in compilation warnings. Fix it.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
cfg80211 requires the link ID to be specified for requests to start a
remain-on-channel operation during an ML association. This feels wrong
since the ROC operation is in most cases unrelated to the
association. However, that requirement has been in place since kernel
commit 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link
APIs") from April 2022, and as such, it looks necessary to have
wpa_supplicant work around this by specifying the currently used link ID
that would seem to match the ROC channel most closely.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
The GAS request may have been issued using a link address of the AP
MLD's affiliated link and the driver may translate that address to the
MLD MAC address when associated with the AP MLD. Accept GAS responses
where the addresses map to the same AP MLD.
Signed-off-by: Jouni Malinen <j@w1.fi>
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>
The current operating channel bandwidth in an HE BSS is determined with
the combination of elements, include the VHT Operation element. Use VHT
Operation element to check whether the 80, 80+80, and 160 MHz cases are
enabled if the AP claims to be capable of operating an 80/160 MHz BSS.
Signed-off-by: Jouni Malinen <j@w1.fi>
The current operating channel bandwidth in an HE BSS is determined with
the combination of elements, include the HT Operation element. Use HT
Operation element to check whether the 40 MHz case is enabled if the AP
claims to be capable of operating a 40 MHz BSS.
Signed-off-by: Jouni Malinen <j@w1.fi>
Use the PHY parameters from configuration or the values passed in from
the dbus API for P2P dbus command GroupAdd instead of using the hard
coded values to be inline with the method provided with the
wpa_supplicant control interface.
Signed-off-by: Jintao Lin <jintaolin@chromium.org>
The vht_center_freq2 parameter was in incorrect order in the call to
wpas_p2p_group_add_persistent(). This would have dropped the value when
adding a group based on a previously created persistent group ion the GO
side and that would have resulted in a failure to start the GO.
Fix the function call to use the correct order for the parameters.
Signed-off-by: Jintao Lin <jintaolin@chromium.org>
This allows the function to be used outside the context of the
wpa_supplicant control interface implementation.
Signed-off-by: Jintao Lin <jintaolin@chromium.org>
When the P2P persistent group is provisioned out-of-band, i.e., add
persistent group with a known BSSID, SSID, passphrase, and frequency,
and start the group with GroupAdd dbus command, the group info fetched
on the cliend side has zero MAC address for BSSID and no value for
frequency. Fix this issue by getting that information from
wpa_s->current_bss instead of wpa_s->go_params.
Signed-off-by: Jintao Lin <jintaolin@chromium.org>
The location of the comment is incorrect and it is not really needed.
Remove it.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
We only print the newline if the AP MLD ID is present
(BASIC_MULTI_LINK_CTRL_PRES_AP_MLD_ID), fix that.
Fixes: e3e68668c1 ("ctrl_iface: Report RNR and ML in BSS command")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
It is not really helpful to get debug prints about Hotspot 2.0 frame
filtering when trying to connect a non-Hotspot 2.0 network. Remove this
debug print that was being printed for every connection that did not use
Hotspot 2.0.
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>
Don't ever return -1 from print_bss_info() as that causes
corruption of the output.
Also don't return -1 from print_fils_indication() as that
would stop the iteration over all BSSs.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This is needed to work around some issues that show up mainly in testing
scenarios when the same BSSID might be used with different
configurations and the scan results from the driver might include both
the old and new contents when two different SSIDs are used.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
Use AP MLD address instead of BSSID for PWE derivation during MLO
connection. This was already done for H2E in commit e869fdfeef
("wpa_supplicant: Use MLD address in SAE authentication"). While IEEE
P802.11be requires H2E to be used, there are deployed AP MLDs that do
not follow that requirement. This change to the hunting-and-pecking loop
case is needed for interoperability workarounds with such APs.
Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>
During scan results matching for connection skip BSS entries for the
current connection if disassociation imminent is set.
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>
Based on IEEE P802.11be/D5.0, when a station is non-AP MLD with more
than one link the combination of the Link Removal Imminent field set to
1 and the BSS Termination Included field set to 1 means than only one of
the links is removed while the other links will remains associated.
Handle this case without starting a scan to find another BSS.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Allow frames where the SA is the AP MLD MAC address as the driver might
have performed address translation.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
For wpa_supplicant based SAE/OWE connection, the wpa_supplicant state
machine is aware of the PMKID created for a connection and this gets
removed when "REMOVE_NETWORK all" is called. However, when SAE/OWE
offload is enabled, wpa_supplicant is not aware of the PMKID generated
by the driver/firmware. So add PMKSA del indication to the driver from
remove_network context so that the driver can free PMKs associated with
the SSID.
Signed-off-by: Vinayak Yadawad <vinayak.yadawad@broadcom.com>
