Commit graph

559 commits

Author SHA1 Message Date
Jouni Malinen
c8eb7fe66c Fix signal_poll based roaming skip
Fix a rebasing issue in the signal difference calculation. The older
patch was not updated to use the new cur_level local variable to get the
possibly updated signal level for the current BSS.

Fixes: a2c1bebd43 ("Improve roaming logic")
Signed-off-by: Jouni Malinen <j@w1.fi>
2020-01-02 20:34:39 +02:00
Jouni Malinen
ad2f096609 Maintain BSS entries for 5 seconds after interface is disabled
This is targeting the case of MAC address change for an association
which may require the interface to be set down for a short moment.
Previously, this ended up flushing the BSS table that wpa_supplicant
maintained and that resulted in having to scan again if the MAC address
was changed between the previous scan and the connection attempt. This
is unnecessary extra latency, so maintain the BSS entries for 5 seconds
(i.e., the same time that the old scan results are consider valid for a
new connection attempt) after an interface goes down.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-01-02 12:58:58 +02:00
Jouni Malinen
988f14448a Indicated if the selected BSS is the current BSS
This makes scan result processing a bit more readable in debug log.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-01-01 17:55:26 +02:00
Jouni Malinen
a8ad9c31db Make min_diff determination from cur_level more readable
This handles both the dBm and unspecified unit cases.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-01-01 17:46:03 +02:00
Jouni Malinen
41f72d7356 Use sel_est consistently with cur_sel in wpa_supplicant_need_to_roam()
This makes the code a bit easier to read.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-01-01 17:37:58 +02:00
Matthew Wang
a2c1bebd43 Improve roaming logic
Currently, wpa_supplicant may roam too aggressively; the need_to_roam()
function will return early with a roaming decision if the difference in
signal level or throughput between the current and selected APs is
"sufficiently large." In particular, if the selected AP's estimated
throughput is more than 5k greater than the current AP's estimated
throughput, wpa_supplicant will decide to roam. Otherwise, if the
selected AP's signal level is less than the current AP's signal level,
or the selected AP's estimated throughput is at least 5k less than the
current AP's estimated throughput, wpa_supplicant will skip the roam.
These decisions are based only on one factor and can lead to poor
roaming choices (e.g., a roam should not happen if the selected AP's
estimated throughput meets the threshold but the current signal and
throughput are already good, whereas a roam should happen if the signal
is slightly worse but the estimated throughput is significantly better).

This change standardizes the roaming heuristic for signal strength
difference requirements and will hopefully improve user experience. The
change can be summarized as follows: based on the current signal level,
a certain roaming difficulty is assigned. Based on the selected AP's
estimated throughput relative to the current AP's estimated throughput,
the difficulty is adjusted up or down. If the difference in signal level
meets the threshold, a roam happens.

The hard-coded values were selected purely based on the previous version
of this function. They may eventually need to be fine-tuned for optimal
performance.

Signed-off-by: Matthew Wang <matthewmwang@chromium.org>
2020-01-01 17:33:51 +02:00
Jouni Malinen
9c8d550b77 Allow roam to lower signal level if throughput benefit is significant
Do not prevent roam to a different BSS based only on the signal level
with the current BSS being higher than with the selected BSS. If the
estimated throughput is significantly higher (> 20%), allow roaming if
the following conditions are met.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-01-01 17:09:18 +02:00
Jouni Malinen
9fafefb9e5 Skip roaming based on signal level difference if current SNR is good
If the current SNR with the associated BSS is sufficiently good (better
than GREAT_SNR = 25), there is limited benefit from moving to another
BSS even if that BSS were to have a higher signal level. As such, skip
roaming based on the signal level difference between the selected BSS
from scan results and the current BSS for such cases.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-01-01 16:56:40 +02:00
Jouni Malinen
f4f7600adf Use signal_poll noise information for roaming, if available
Using average signal strength from the driver and hardcoded noise floor
does not look like an ideal design since there can be significant
differences in the driver-reported noise floor values. Furthermore, even
though the current noise floor is a snapshot from the driver, it is
common for drivers to use a noise floor value from a longer calibration
step and that should not prevent the driver provided value from being
used. This makes the comparisons of the signal strengths between the
current AP (signal_poll) and other APs (scan) more accurate.

As an example, test runs in home environment showed 5 dB difference
between the driver reported noise floor and the hardcoded value and this
could result in significant differences in estimated throughput
calculation.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-01-01 13:38:11 +02:00
Matthew Wang
69ccc557d8 wpa_supplicant: Fall back to avg_signal in roaming decision
Some drivers (e.g. Marvell WiFi) don't report avg_beacon_signal, but
it's still useful to poll for the signal again when a roaming decision
needs to be made. Use si.avg_signal when si.avg_beacon_signal is not
available.

Signed-off-by: Matthew Wang <matthewmwang@chromium.org>
2019-12-31 00:23:42 +02:00
Emmanuel Grumbach
7e7b23e229 Update throughput estimate for the current BSS based on signal poll
We saw that on certain platforms in certain places we keep switching
between two APs and eventually get the same RSSI. Debugging showed that
we have a very big difference between the two antennas.

Ant A can hear AP A very well (-60) but AP B very bad (-80)
Ant B can hear AP B very well (-60) but AP A very bad (-80)

When the device associates to AP A, it'll learn to use Ant A. If the
device uses one single antenna to receive the scan results, it may hear
the AP it is currently associated to on the second antenna and get bad
results. Because of that, the wpa_supplicant will roam to the other AP
and the same scenario will repeat itself:

Association to AP A (Ant A reports -60).
Scan on Ant A: AP A: -60, AP B: -80
Scan on Ant B: AP A: -80, AP A: -60 ==> ROAM.

Association to AP B (Ant B reports -60)
Scan on Ant A: AP A: -60, AP B: -80 ==> ROAM

Etc...

Improve this by querying the signal level of the current AP using
drv_signal_poll() instead of relying on the signal level that we get
from the scan results. Also update the throughput estimate based on the
likely more accurate values for the current association.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2019-12-31 00:21:37 +02:00
Emmanuel Grumbach
98ea9d5d51 Use local variables for current BSS signal strength in roaming
This is a step towards allowing these values to be determined based on
signal poll instead of scan results.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2019-12-30 23:57:47 +02:00
Sergey Matyukevich
078217a2d7 STA OBSS: Update secondary channel info after CSA
Field wpa_s->sme.ht_sec_chan keeps secondary channel for the 40 MHz
band. This field is used to prepare a list of channels for the STA OBSS
scan. Initially, the secondary channel is set to HT_SEC_CHAN_UNKNOWN.
Later on, in function wpa_obss_scan_freq_list() it is obtained from the
current BSS HT operation IE. However, the secondary channel information
is not updated after channel switch, which may lead to an incorrect list
of channels prepared for the STA OBSS scan.

Update ht_sec_chan according to the channel switch event data to fix
this.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
2019-12-27 21:04:57 +02:00
Sergey Matyukevich
3204795d7a STA OBSS: Add check for overlapping BSSs
In the previous implementation connected STA performs OBSS scan
according to requests from its 20/40 MHz AP. However STA checks only 40
MHz intolerance subfield from HT Capabilities element in scan results.
Meanwhile, as per IEEE Std 802.11-2016, 11.16.12, STA should check
overlapping BSSs as well.

Note that all the required code to check overlapping BSSs did already
exist for AP mode since AP does those checks properly before operating
as 20/40 MHz BSS in the 2.4 GHz band. Use that existing code by replace
existing 40 MHz intolerance check in sme_proc_obss_scan() with the new
shared helper function check_bss_coex_40mhz().

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
2019-12-26 11:41:01 +02:00
Alexander Wetzel
84877f253d wpa_supplicant: Do not try to detect PSK mismatch during PTK rekeying
When a PTK rekey fails it can't be caused by a PSK mismatch. Report a
possible PSK mismatch only during the initial 4-way handshake to avoid
incorrect reports.

Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
2019-12-21 17:10:17 +02:00
Jouni Malinen
e3c476bd8c SAE H2E: Fix RSNXE override in EAPOL-Key msg 2/4 for testing purposes
The previous implementation missed the case where EAPOL-Key frame may be
reported as having been received before the association event is
processed. This would have resulted in not using the RSNXE override for
EAPOL-Key msg 2/4 when the pending EAPOL-Key frame gets processed
immediately after processing the association event. Fix this by moving
the override case to be handled before that.

Fixes: 1325655397 ("SAE H2E: RSNXE override for testing purposes")
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-12-13 03:08:27 +02:00
Jouni Malinen
1325655397 SAE H2E: RSNXE override for testing purposes
"SET rsnxe_override_{assoc,eapol} <hexdump>" can now be used to override
RSNXE in (Re)Association Request frames and EAPOL-Key msg 2/4 for
testing purposes.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-12-07 12:54:54 +02:00
Jouni Malinen
405946d76a SAE: Testing option to ignore H2E requirement mismatch
"SET ignore_sae_h2e_only 1" can now be used to configurate
wpa_supplicant to a test mode where it ignores AP's H2E-required
advertisement and try to connect with hunt-and-pecking loop instead.
This is used only for testing AP behavior with unexpected STA behavior.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-12-06 17:13:59 +02:00
Jouni Malinen
50a2c8c906 Do not indicate possible PSK failure when using SAE
wpa_key_mgmt_wpa_psk() includes SAE AKMs. However, with SAE, there is no
way of reaching 4-way handshake without the password having already been
verified as part of SAE authentication. As such, a failure to complete
4-way handshake with SAE cannot indicate that the used password was
incorrect.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-10-27 12:54:40 +02:00
Jouni Malinen
6d6c887751 SAE: Add RSNXE in Association Request and EAPOL-Key msg 2/4
Add the new RSNXE into (Re)Association Request frames and EAPOL-Key msg
2/4 when using SAE with hash-to-element mechanism enabled. This allows
the AP to verify that there was no downgrade attack when both PWE
derivation mechanisms are enabled.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-10-17 16:54:05 +03:00
Jouni Malinen
cfe1ea5c9c SAE: H2E version of SAE commit message handling for STA
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-10-15 15:39:22 +03:00
Jouni Malinen
146889e3ca RSN: Verify RSNXE match between Beacon/ProbeResp and EAPOL-Key msg 3/4
If the AP advertises RSN Extension element, it has to be advertised
consistently in the unprotected (Beacon and Probe Response) and
protected (EAPOL-Key msg 3/4) frames. Verify that this is the case.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-10-15 15:39:22 +03:00
Jouni Malinen
293a01f3b3 SAE: Handle BSS membership selector indication for H2E-only in STA mode
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-10-15 15:39:22 +03:00
Ankita Bajaj
c349174035 MBO/OCE: Update disable_mbo_oce flag after association
After roaming to an AP, update disable_mbo_oce flag based on the current
BSS capabilities. This flag is used to check whether STA should support
MBO/OCE features and process BTM request received from the current
connected AP.

When a STA roams from a WPA2 MBO/OCE AP with PMF enabled to a
misbehaving WPA2 MBO/OCE AP without PMF, or if the driver chooses a BSS
in which PMF is not enabled for the initial connection, BTM requests
from such APs should not be processed by STA.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-10-01 16:45:15 +03:00
Vamsi Krishna
2e06cef80a MBO/OCE: Work around misbehaving MBO/OCE APs that use RSN without PMF
The MBO and OCE specification require the station to mandate use of PMF
when connecting to an MBO/OCE AP that uses WPA2. The earlier
implementation prevented such misbehaving APs from being selected for
connection completely. This looks like the safest approach to take, but
unfortunately, there are deployed APs that are not compliant with the
MBO/OCE requirements and this strict interpretation of the station
requirements results in interoperability issues by preventing the
association completely.

Relax the approach by allowing noncompliant MBO/OCE APs to be selected
for RSN connection without PMF to avoid the main impact of this
interoperability issue. However, disable MBO/OCE functionality when PMF
cannot be negotiated to try to be as compliant as practical with the
MBO/OCE tech spec requirements (i.e., stop being an MBO/OCE STA for the
duration of such workaround association). Also disable support for BTM
in this workaround state since MBO would expect all BTM frames to be
protected.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-09-21 00:58:33 +03:00
Jouni Malinen
16ef233bf1 DPP2: Connection status result (Enrollee)
Add support for reporting connection status after provisioning if the
Configurator requests this.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-09-16 17:25:34 +03:00
Jouni Malinen
7d2ed8bae8 Remove CONFIG_IEEE80211W build parameter
Hardcode this to be defined and remove the separate build options for
PMF since this functionality is needed with large number of newer
protocol extensions and is also something that should be enabled in all
WPA2/WPA3 networks.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-09-08 17:33:40 +03:00
Ankita Bajaj
0028d627c8 OCE: Mandate PMF for WPA2 association with OCE AP
An OCE AP with WPA2 enabled shall require PMF negotiation when
associating with an OCE STA. An OCE STA-CFON may negotiate PMF with a
STA when it is operating as an AP. Don't select an OCE AP for connection
if PMF is not enabled.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-08-15 19:06:53 +03:00
Jouni Malinen
b0b25c5bbc Clear external eapSuccess setting in driver-authorized cases
The conditions for the eapol_sm_notify_eap_success(FALSE) calls did not
cover the case where eapol_sm_notify_eap_success(TRUE) had been called
based on offloaded 4-way handshake and driver notification of
authorization in wpa_supplicant_event_port_authorized(). This could
result in eapSuccess and altSuccess state machine variables being left
TRUE when roaming to another BSS and that results in EAP failure if the
following roaming case does not get fully authorized through the driver
offload.

Fix this by clearing eapSuccess/altSuccess when processing a new
association (including roaming) event and also when disconnecting from
the network.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-08-07 19:24:06 +03:00
Sunil Dutt
3263fca289 Set the default scan IEs on interface restart
Previously, these default scan IEs were set only when parameter values
changed and during the interface initialization, which can get lost in
the driver on an interface restart. Hence, also set these IEs on an
interface restart notification even when there has been no change in the
values since the last update to the driver.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-08-07 11:43:12 +03:00
Sven Eckelmann
f74618cb92 wpa_supplicant: Fix type for ssid->mode comparisons
The ssid->mode is from type enum wpas_mode and all its constants start
with WPAS_MODE_*. Still some of the code sections used the
IEEE80211_MODE_* defines instead of WPAS_MODE_*.

This should have no impact on the actual code because the constants for
INFRA, IBSS, AP and MESH had the same values.

Signed-off-by: Sven Eckelmann <seckelmann@datto.com>
2019-06-23 18:03:51 +03:00
Ankita Bajaj
a8391db7cf OCE: Use RSSI of actual BSS which rejected association
If an AP rejects association due to low RSSI, then RSSI of the BSS from
which association reject is received shall be used for calculating RSSI
threshold at which STA can try connecting back to that BSS later. In
case of SME offload, the current_bss might not have been set before
receiving association completion, so fetch the BSS entry based on the
BSSID provided in the driver event.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-05-31 16:52:10 +03:00
Omer Dagan
95f556f3c7 Make channel switch started event available over control interface
This makes it easier to upper layer components to manage operating
channels in cases where the same radio is shared for both station and AP
mode virtual interfaces.

Signed-off-by: Omer Dagan <omer.dagan@tandemg.com>
2019-04-22 22:08:07 +03:00
Alex Khouderchah
cfde99a84b Add 802.11 reason code strings into wpa_supplicant messages
Logs involving IEEE 802.11 Reason Codes output the Reason Code value,
but do not provide any explanation of what the value means. This change
provides a terse explanation of each Reason Code using the latter part
of the reason code #define names.

Signed-off-by: Alex Khouderchah <akhouderchah@chromium.org>
2019-04-22 22:08:05 +03:00
Avraham Stern
fe01cd0067 Fix FILS ERP association event with 4-way HS offload drivers
When FILS authentication is used with ERP, no EAPOL frames are expected
after association. However, for drivers that set the
WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X capability flag, the EAP state
machine was not configured correctly and was waiting for EAPOL frames,
which leads to disconnection.

Fix this by reordering the if branches to set the EAPOL/EAP state
machines to success when FILS authentication was already completed.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2019-04-16 01:53:21 +03:00
Jouni Malinen
10ec6a5f38 DPP2: PFS for PTK derivation
Use Diffie-Hellman key exchange to derivate additional material for
PMK-to-PTK derivation to get PFS. The Diffie-Hellman Parameter element
(defined in OWE RFC 8110) is used in association frames to exchange the
DH public keys. For backwards compatibility, ignore missing
request/response DH parameter and fall back to no PFS in such cases.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-18 18:32:31 +02:00
Jouni Malinen
e3b5bd81bd UBSan: Fix RRM beacon processing attempt without scan_info
Some driver interfaces (e.g., wext) might not include the
data->scan_info information and data could be NULL here. Do not try to
call the RRM handler in this case since that would dereference the NULL
pointer when determining where scan_info is located and could
potentially result in trying to read from unexpected location if RRM is
enabled with a driver interface that does not support it.

events.c:1907:59: runtime error: member access within null pointer of type 'union wpa_event_data'

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-02-25 19:43:11 +02:00
Lior David
2c129a1b71 Fix cipher suite selector default value in RSNE for DMG
According to IEEE Std 802.11-2016, 9.4.2.25 when fields of an RSNE are
not included, the default values are used. The cipher suite defaults
were hardcoded to CCMP in the previous implementation, but the default
is actually different for DMG: GCMP (per 9.4.2.25.2).

It is not possible to find out from the RSNE if the network is non-DMG
or DMG, so callers of wpa_parse_wpa_ie_rsn() need to handle this case
based on context, which can be different for each caller.

In order to fix this issue, add flags to the wpa_ie_data indicating
whether pairwise/group ciphers were included in the RSNE. Callers can
check these flags and fill in the appropriate ciphers. The
wpa_parse_wpa_ie_rsn() function still initializes the ciphers to CCMP by
default so existing callers will not break. This change also fixes some
callers which need to handle the DMG network case.

Signed-off-by: Lior David <liord@codeaurora.org>
2019-02-21 12:42:24 +02:00
Davina Lu
83ebf55865 wpa_supplicant: Support Multi-AP backhaul STA onboarding with WPS
The Wi-Fi Alliance Multi-AP Specification v1.0 allows onboarding of a
backhaul STA through WPS. To enable this, the backhaul STA needs to add
a Multi-AP IE to the WFA vendor extension element in the WSC M1 message
that indicates it supports the Multi-AP backhaul STA role. The Registrar
(if it support Multi-AP onboarding) will respond to that with a WSC M8
message that also contains the Multi-AP IE, and that contains the
credentials for the backhaul SSID (which may be different from the SSID
on which WPS is performed).

Introduce a new parameter to wpas_wps_start_pbc() and allow it to be
set via control interface's new multi_ap=1 parameter of WPS_PBC call.
multi_ap_backhaul_sta is set to 1 in the automatically created SSID.
Thus, if the AP does not support Multi-AP, association will fail and
WPS will be terminated.

Only wps_pbc is supported.

This commit adds the multi_ap argument only to the control socket
interface, not to the D-Bus interface.

Since WPS associates with the fronthaul BSS instead of the backhaul BSS,
we should not drop association if the AP announces fronthaul-only BSS.
Still, we should only do that in the specific case of WPS. Therefore,
add a check to multi_ap_process_assoc_resp() to allow association with a
fronthaul-only BSS if and only if key_mgmt contains WPS.

Signed-off-by: Davina Lu <ylu@quantenna.com>
Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Cc: Marianna Carrera <marianna.carrera.so@quantenna.com>
2019-02-18 22:35:41 +02:00
Jouni Malinen
3f8ceff54c Indicate wifi_generation in wpa_supplicant STATUS output
This adds a wifi_generation=4/5/6 line to the STATUS output if the
driver reports (Re)Association Request frame and (Re)Association
Response frame information elements in the association or connection
event. Only the generations 4 (HT = 802.11n), 5 (VHT = 802.11ac), and 6
(HE = 802.11ax) are reported.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-02-15 02:09:41 +02:00
Arend van Spriel
436ee2fd93 drivers: Add separate driver flags for 802.1X and PSK 4-way HS offloads
Allow drivers to indicate support for offloading 4-way handshake for
either IEEE 802.1X (WPA2-Enterprise; EAP) and/or WPA/WPA2-PSK
(WPA2-Personal) by splitting the WPA_DRIVER_FLAGS_4WAY_HANDSHAKE flag
into two separate flags.

Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
2019-01-08 01:12:02 +02:00
Peter Oh
0332c27e32 mesh: Consider mesh interface on DFS event handler
Once mesh starts supporting DFS channels, it has to handle DFS related
events from drivers, hence add mesh interface to the check list.

Signed-off-by: Peter Oh <peter.oh@bowerswilkins.com>
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2019-01-03 13:31:55 +02:00
Alex Khouderchah
38b405c8f0 dbus: Expose authentication status to D-Bus
wpa_supplicant currently logs CTRL-EVENT-AUTH-FAILED errors when
authentication fails, but doesn't expose any property to the D-Bus
interface related to this.

This change adds the "AuthStatusCode" property to the interface, which
contains the IEEE 802.11 status code of the last authentication.

Signed-off-by: Alex Khouderchah <akhouderchah@chromium.org>
2019-01-03 00:39:12 +02:00
Matthew Wang
2bbad1c7c9 dbus: Export roam time, roam complete, and session length
Add new Interface properties "RoamTime", "RoamComplete", and
"SessionLength". "RoamTime" carries the roam time of the most recent
roam in milliseconds. "RoamComplete" carries True or False corresponding
to the success status of the most recent roam. "SessionLength" carries
the number of milliseconds corresponding to how long the connection to
the last AP was before a roam or disconnect happened.

Signed-off-by: Matthew Wang <matthewmwang@chromium.org>
2019-01-03 00:20:34 +02:00
Beni Lev
19677b77c3 OCE: Add RSSI based association rejection support (STA)
An AP might refuse to connect a STA if it has a low RSSI. In such case,
the AP informs the STA with the desired RSSI delta and a retry timeout.
Any subsequent association attempt with that AP (BSS) should be avoided,
unless the RSSI level improved by the desired delta or the timeout has
expired.

Defined in Wi-Fi Alliance Optimized Connectivity Experience technical
specification v1.0, section 3.14 (RSSI-based association rejection
information).

Signed-off-by: Beni Lev <beni.lev@intel.com>
2019-01-01 17:56:25 +02:00
Jouni Malinen
32bb47faa1 Update wpa_supplicant channel list on FLUSH
Try to make sure the driver channel list state is synchronized with
wpa_supplicant whenever explicitly clearing state (e.g., between hwsim
test cases).

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-01-01 15:58:46 +02:00
Venkateswara Naralasetty
5abc7823bd wpa_supplicant: Add Multi-AP backhaul STA support
Advertise vendor specific Multi-AP IE in (Re)Association Request frames
and process Multi-AP IE from (Re)Association Response frames if the user
enables Multi-AP fuctionality. If the (Re)Association Response frame
does not contain the Multi-AP IE, disassociate.

This adds a new configuration parameter 'multi_ap_backhaul_sta' to
enable/disable Multi-AP functionality.

Enable 4-address mode after association (if the Association Response
frame contains the Multi-AP IE). Also enable the bridge in that case.
This is necessary because wpa_supplicant only enables the bridge in
wpa_drv_if_add(), which only gets called when an interface is added
through the control interface, not when it is configured from the
command line.

Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2018-12-20 12:10:31 +02:00
Mathy Vanhoef
f91e68e903 OCV: Perform an SA Query after a channel switch
After the network changed to a new channel, perform an SA Query with the
AP after a random delay if OCV was negotiated for the association. This
is used to confirm that we are still operating on the real operating
channel of the network. This commit is adding only the station side
functionality for this, i.e., the AP behavior is not changed to
disconnect stations with OCV that do not go through SA Query.

Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@cs.kuleuven.be>
2018-12-17 15:50:12 +02:00
Ashok Kumar
698c9e2021 OWE: Try another group only on association rejection with status 77
Do not change the OWE group if association is rejected for any other
reason than WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED to avoid
unnecessary latency in cases where the APs reject association, e.g., for
load balancing reasons.

Signed-off-by: Ashok Kumar <aponnaia@codeaurora.org>
2018-12-02 20:42:09 +02:00
Jouni Malinen
3d1d469195 Fix indentation level
This gets rid of smatch warnings about inconsistent indenting.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-11-30 21:28:19 +02:00