Commit graph

407 commits

Author SHA1 Message Date
Jouni Malinen
c60ba9f7ab Skip network disabling on expected EAP failure
Some EAP methods can go through a step that is expected to fail and as
such, should not trigger temporary network disabling when processing
EAP-Failure or deauthentication. EAP-WSC for WPS was already handled as
a special case, but similar behavior is needed for EAP-FAST with
unauthenticated provisioning.

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-08 16:42:15 +02:00
Jouni Malinen
6428d0a71f Do not start wpa_radio work during externally triggered scan
If an external program triggers a scan, wpa_supplicant does not have a
wpa_radio work item for this operation to protect against other
offchannel operations. This can result in operations failing, so try to
avoid damage by not starting any new wpa_radio work items during a scan
that was started by another process.

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-07 10:45:10 +02:00
Jouni Malinen
1b5d4714dd Use radio work for P2P scan requests
Avoid concurrent P2P scan requests with any other exclusive use of the
radio by using the radio work queuing mechanism. This removes some of
the earlier workarounds that postponed scans depending on other
operations.

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-05 22:39:25 +02:00
Jouni Malinen
d12a51b5d2 Use radio work for scan requests
Avoid concurrent scan requests by using the radio work queuing
mechanism.

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-05 22:37:50 +02:00
Jouni Malinen
06f9acce18 Ignore externally triggered scan results with scan_res_handler
wpa_s->scan_res_handler is set only for cases where a scan operation is
requested for a specific purpose. As such, this callback should only be
called when a scan result from a scan that was triggered by
wpa_supplicant is processed.

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-05 22:34:17 +02:00
Jouni Malinen
2f30cac36f Avoid unnecessary key clearing operations
Track set_key operations per-key index and clear keys on disconnection
only if the key was set (or may have been set which is the case for the
first operation after wpa_supplicant start).

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-02 23:49:38 +02:00
Jouni Malinen
152cff6ba6 P2P: Remove WPA_DRIVER_FLAGS_P2P_MGMT option
The option of handling upper layer P2P management operations within the
driver/firmware was originally planned to be used with wpa_supplicant,
but this has not really happened and there is no clear sign of this
being needed in the near term either. This functionality has not been
completed and it is certainly not being kept up-to-date or tested. As
such, it is best to remove it for now and if this or something similar
is needed in the future, it can be brought back once a clear need for it
has been demonstrated first.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-29 18:20:47 +02:00
Jouni Malinen
538d6f4b54 WPS: Use shorter scan interval during pre-provisioning search
Previously, the shorter scan interval was already in use for the
connection following the provisioning step, but same optimization can
also be used for the pre-provisioning scan.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-29 18:02:05 +02:00
Jouni Malinen
dbfb8e82ff Remove unnecessary EVENT_RX_ACTION
This driver event was used separately for some Action frames, but all
the driver wrappers converted to this from information that would have
been enough to indicate an EVENT_RX_MGMT event. In addition, the
received event was then converted back to a full IEEE 802.11 management
frame for processing in most cases. This is unnecessary complexity, so
get rid of the extra path and use EVENT_RX_MGMT for Action frames as
well as other management frame subtypes.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-29 17:18:17 +02:00
Jouni Malinen
662b40b16b WPS: Reduce scan wait time during WPS processing
Since the AP is expected to be available, there is no need to wait for
the full five second wait between scans during WPS connection. This
speeds up cases where the first scan misses the AP for some reason.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-12-26 20:50:28 +02:00
Jouni Malinen
015af91fea Do not use results from externally requested scan for network selection
It may not always be desirable to trigger reassociation or network
change based on scan results from externally to wpa_supplicant trigger
scan operations. Skip network selection and roaming determination if the
received scan result is known to be triggered by something external to
wpa_supplicant. The control interface SCAN command can be used to
request wpa_supplicant to determine the best network.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-26 20:50:28 +02:00
Jouni Malinen
dc3906cb2d Show timing information about scan requests in debug log
Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-26 18:48:52 +02:00
Jouni Malinen
d81c73be18 Optional scan id for ctrl_iface SCAN requests
This allows users of wpa_supplicant control interface to figure out when
their specific scan command has been started and completed. For example:

CTRL-EVENT-SCAN-STARTED
> scan freq=2412,2417 passive=1 use_id=1
3
CTRL-EVENT-SCAN-RESULTS
CTRL-EVENT-SCAN-STARTED id=3
CTRL-EVENT-SCAN-RESULTS id=3

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-26 18:48:52 +02:00
Jouni Malinen
a5f40eff18 Track whether scan was started by us or an external program
This can be used to improve scan behavior in cases external programs
request scans directly from the driver.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-26 18:27:48 +02:00
Johannes Berg
a12d34546a wpa_supplicant: Use monotonic time for last_scan check
This just serves to check if there was a scan within
the last 5 seconds, hence it should use monotonic time.
While at it, also use os_reltime_expired().

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-12-24 08:21:18 +02:00
Johannes Berg
6473e5c842 wpa_supplicant: Use relative time for TKIP Michael MIC failures
The MMIC failure code should use monotonic time to check
whether 60 seconds have elapsed or not. For type-safety,
use struct os_reltime for the timestamp variable, and
also convert to using os_reltime_expired().

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-12-24 08:18:47 +02:00
Johannes Berg
4e1eae1dff wpa_supplicant: Use monotonic time for temp-disabled networks
Temporarily disabled networks are disabled for a certain
duration, so the code should use monotonic time.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-12-24 08:01:59 +02:00
Johannes Berg
c2be937ce7 wpa_supplicant: Use monotonic time for EAPOL RX workaround
The EAPOL RX workaround checks that the events are less than 100 ms
apart, so only uses relative times and should use monotonic time.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-12-24 07:35:42 +02:00
Janusz Dziedzic
8d1fdde7f0 nl80211/hostapd: Extend channel switch notify handling
Adds support for VHT by parsing bandwidth and center_freq{1,2}.

Signed-hostap: Michal Kazior <michal.kazior@tieto.com>
Signed-hostap: Janusz Dziedzic <janusz.dziedzic@tieto.com>
2013-12-07 20:50:15 -08:00
Jouni Malinen
c67e7e2a23 Use wpa_radio data for channel list updates
This replaces the now unnecessary iteration of get_radio_name() calls.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-11-24 21:20:14 +02:00
Jouni Malinen
f88f19b465 Use wpa_radio data for scan result updates
This replaces the now unnecessary iteration of get_radio_name() calls.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-11-24 21:20:14 +02:00
Ilan Peer
6f72577f29 P2P: Handle INTERFACE_DISABLED event on a P2P GO interface
An INTERFACE_DISABLED event received on an interface that is
currently operating a P2P GO means that the group session ended.
In such a case, if the interface was dynamically added remove it, and
if not, remove all the network blocks that are temporary, assuming
that if needed a new session will be started by an external entity.

The use case was triggering rfkill (both SW and HW). This case popped up
as part of a testing cycle, where after a toggle in the rfkill state,
the result was that the interface was not deleted, but on the other hand
the wpa_supplicant did not configure the kernel to re-start the AP
functionality again.

Signed-hostap: Ilan Peer <ilan.peer@intel.com>
2013-11-24 12:29:20 +02:00
Loic Poulain
1245503188 Restore scan_req if sta scan is rescheduled in the scan results event
On scan results event if a concurrent P2P scan was triggered previously,
scan results processing is canceled, p2p_find executed, and a new sta
scan is triggered (pending scan). However, this new sta scan does not
restore the scan_req value of the previous scan (whose scan result has
been canceled).

If we are currently connected to an AP and use ap_scan=2, the new
triggered scan will cause an associtation-without-scan in
wpa_supplicant_scan:
(ap_scan == 2 & scan_req != MANUAL_SCAN_REQ)
	=> wpa_supplicant_assoc_try()
causing an association error and a disconnection.

This patch fixes this issue by restoring the previous scan_req value.

Signed-off-by: Loic Poulain <loicx.poulain@intel.com>
2013-11-24 11:47:30 +02:00
Rashmi Ramanna
6fc48481e4 P2P: Short scan wait to speed up the group re-invocation
The shorter 250 ms wait for the next scan request can be used also for
the case of persistent group re-invocation instead of just formation of
a new group. This speeds up the process and makes this more robust
especially in cases where the GO is using MCC.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-11-20 16:35:30 +02:00
Jouni Malinen
93a06fe103 Fix QoS Map Configure frame use
The QoS Map Set element was passed in full to the driver instead of just
the payload of the element. This resulted in the updated QoS Map being
rejected. Validate the element id/len and send only the payload to the
driver.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-11-20 12:49:27 +02:00
Masashi Honma
22cf7d7324 SCARD: Clean up SIM/USIM selection
Commit eb32460029 left an unneeded
sim_type argument to scard_init(). Remove that unnecessary argument to
clean up the implementation.

Signed-hostap: Masashi Honma <masashi.honma@gmail.com>
2013-11-17 16:47:38 +02:00
Jithu Jance
cc4952ad63 Request new scan only for the original interface
Request new scan only for the interface for which the original scan
request and results has come. Otherwise while sharing scan results along
with P2P interfaces, the new scan will be requested on P2P interfaces.

Signed-hostap: Jithu Jance <jithu@broadcom.com>
2013-11-17 16:47:22 +02:00
Jouni Malinen
9ec876662b P2P: Allow GO P2P Device Address to be used for scan result matching
This is a better way of matching P2P groups based on the unique P2P
Device Address (e.g., from P2P Group ID) and SSID pair instead of using
the not necessarily unique P2P Interface Address.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-11-07 13:49:01 +02:00
Vinay Krishna Eranna
731ca6364e Update regulatory change to all virtual interface for the phy
wpas_p2p_setup_channels function uses the per interface information
(wpa_s->hw.modes) for setting up the available channel list for P2P
operation, but if a separate P2P interface is used (e.g., p2p0 on
Android), the wpa_s instance for that interface may not get an updated
channel list. This can result in some operations, like "P2P_SET
disallow_freq", using old channel list information (e.g., world roaming
information with passive-scan/no-ibss flags) which was initialized
during the start-up. This could result in P2P functionality using
conflicting or obsolete channel information.

To resolve this issue, update channel list information on regulatory
change events to all of the virtual interfaces sharing the same phy for
which the event is received.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-10-29 23:03:23 +02:00
Jouni Malinen
a5d44ac083 EAP peer: Add framework for external SIM/USIM processing
The new configuration parameter external_sim=<0/1> can now be used to
configure wpa_supplicant to use external SIM/USIM processing (e.g., GSM
authentication for EAP-SIM or UMTS authentication for EAP-AKA). The
requests and responses for such operations are sent over the ctrl_iface
CTRL-REQ-SIM and CTRL-RSP-SIM commands similarly to the existing
password query mechanism.

Changes to the EAP methods to use this new mechanism will be added in
separate commits.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-10-20 13:12:04 +03:00
Jouni Malinen
56f5af489c Interworking: Add support for QoS Mapping functionality for the STA
Indicate support for QoS Mapping and configure driver to update the QoS
Map if QoS Map Set elements is received from the AP either in
(Re)Association Response or QoS Map Configure frame.

This commit adds support for receiving the frames with nl80211 drivers,
but the actual QoS Map configuration command is still missing.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-10-18 14:13:45 +03:00
Jouni Malinen
b72e14e599 P2P: Do not allow P2P client connection without P2P IE from GO
P2P-GROUP-STARTED event depends on having enough information about the
group available. To avoid incomplete information from being delivered to
upper layers, do not accept scan results without P2P IE (e.g., from a
non-P2P scan) for P2P client association process. This can be of use for
some join-a-group cases where non-P2P scans have generated the BSS entry
for the GO.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-10-14 19:41:23 +03:00
Jouni Malinen
b16696ff72 P2P: Show p2p flag in debug info for scan results
This makes it easier to confirm that P2P capabilities for a GO has been
discovered properly.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-10-14 19:23:38 +03:00
Sunil Dutt
f130b105ec TDLS: Clean up wpa_tdls_teardown_link() uses
Making this function be used only for external setup case simplifies the
implementation and makes core wpa_supplicant calls in ctrl_iface.c and
events.c consistent.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-09-30 17:10:18 +03:00
Jouni Malinen
5bf9a6c859 P2P: Add event messages for possible PSK failures on P2P groups
It is possible for the GO of a persistent group to change the PSK or
remove a client when per-client PSKs are used and this can happen
without the SSID changing (i.e., the group is still valid, but just not
for a specific client). If the client side of such persistent group ends
up trying to use an invalidated persistent group information, the
connection will fail in 4-way handshake. A new WPS provisioning step is
needed to recover from this.

Detect this type of case based on two 4-way handshake failures when
acting as a P2P client in a persistent group. A new
"P2P-PERSISTENT-PSK-FAIL id=<persistent group id>" event is used to
indicate when this happens. This makes it easier for upper layers to
remove the persistent group information with "REMOVE_NETWORK <persistent
group id>" if desired (e.g., based on user confirmation).

In addition to indicating the error cases for persistent groups, all
this type of PSK failures end up in the client removing the group with
the new reason=PSK_FAILURE information in the P2P-GROUP-REMOVED event.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-09-01 21:35:10 +03:00
Masashi Honma
eb32460029 Fix switching from EAP-SIM to EAP-AKA/AKA'
Switching EAP method from EAP-SIM to EAP-AKA fails.
wpa_cli commands are below.

------------------
sudo wpa_cli add_network
sudo wpa_cli set_network 0 ssid '"eap-sim"'
sudo wpa_cli set_network 0 key_mgmt WPA-EAP
sudo wpa_cli set_network 0 eap SIM
sudo wpa_cli set_network 0 pin '"1234"'
sudo wpa_cli set_network 0 pcsc '""'
sudo wpa_cli select_network 0

sudo wpa_cli disable_network 0
sudo wpa_cli disconnect
sudo wpa_cli remove_network 0

sudo wpa_cli add_network
sudo wpa_cli set_network 0 ssid '"eap-sim"'
sudo wpa_cli set_network 0 key_mgmt WPA-EAP
sudo wpa_cli set_network 0 eap AKA
sudo wpa_cli set_network 0 pin '"1234"'
sudo wpa_cli set_network 0 pcsc '""'
sudo wpa_cli select_network 0
------------------

Then EAP-AKA connection resulted in fail.
wpa_supplicant log is below.

------------------
wlan0: CTRL-EVENT-EAP-METHOD EAP vendor 0 method 23 (AKA) selected
SCARD: Non-USIM card - cannot do UMTS auth
EAP-AKA: UMTS authentication failed (AUTN)
wlan0: CTRL-EVENT-EAP-FAILURE EAP authentication failed
------------------

This occurs because on the first EAP-SIM authentication, the SIM/USIM
card in the device was recognized as SIM card even if it is USIM card.

So this patch changes it to recognize as USIM card even if EAP-SIM
authentication was required.

I have tested these switching cases.
EAP-SIM -> EAP-AKA
EAP-SIM -> EAP-AKA'
EAP-AKA -> EAP-SIM
EAP-AKA -> EAP-AKA'
EAP-AKA' -> EAP-SIM
EAP-AKA' -> EAP-AKA

Signed-hostap: Masashi Honma <masashi.honma@gmail.com>
2013-08-31 16:11:48 +03:00
Sreenath Sharma
43ee470494 P2P: Immediate group removal in GC in case of deauthentication
Right now in case of deauthentication from GO, immediate group removal will
happen in GC only if the deauthentication packet has a valid IE. However,
the IE in deauthentication packet is mandated only for managed P2P group.
So in normal P2P group the group removal is delayed and will happen later
only in group idle timeout.

This fixes a regression from commit
d7df0fa727 that changed the previous check
for data->deauth_info != NULL to data->deauth_info->ie != NULL.

Signed-hostap: Sreenath Sharma <sreenats@broadcom.com>
2013-08-31 11:11:41 +03:00
Jouni Malinen
25a8f9e316 Clear EAPOL supplicant configuration info on current_ssid changes
There were some code paths that allowed obsolete configuration data
pointer to be maintained within EAPOL supplicant in case a network was
removed while not connection to it (i.e., wpa_s->current_ssid not
pointing to the network that was removed). This could result in use of
freed memory, e.g., from eap_sm_notify_ctrl_attached() when a new
control interface connected prior to the EAPOL supplicant configuration
pointer got updated.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-08-25 19:46:57 +03:00
Jouni Malinen
86bd141050 Change WEP network selection to reject WPA/WPA2 APs
Previously, wpa_supplicant behavior in WEP configuration was to try to
mimic a device that is not aware of WPA/WPA2 and as such, it tried to
connect to a WPA/WPA2 AP with the assumption that the AP could be
providing support for both WEP and WPA/WPA2 stations in the same BSS.
Such APs could have been used during transition from WEP to more secure
options, but that type of deployment have not been used in large number
and are not really of much use anymore taken into account that more or
less all new devices support WPA/WPA2. That combined with the preference
to deprecate WEP justifies removing this use case and making WEP
networking matching more strict by using the knowledge of AP advertising
WPA/WPA2 as an indication of WEP not being supported.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-08-23 19:27:25 +03:00
Jouni Malinen
d7df0fa727 Clean up wpa_supplicant_event() with deauth/disassoc helper functions
wpa_supplicant_event() has grown overly large, so it is useful to split
it into smaller pieces.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-07-21 16:40:40 +03:00
Jouni Malinen
fd9f170098 Remove unnecessary nested ifdef CONFIG_AP
Signed-hostap: Jouni Malinen <j@w1.fi>
2013-07-21 16:01:29 +03:00
Antonio Quartulli
13adc57b39 IBSS RSN: Add peer restart detection
To better support the IBSS/RSN mechanism, wpa_supplicant has to be able
to detect a possible peer reboot and in this case it should start a new
EAPOL handshake.

To perform such reboot detection wpa_supplicant has to perform an Open
Authentication by sending an Authentication frame and then replying to
it. IF an Authentication frame is received when the key have already
been exchanged, wpa_supplicant understands that the peer has rebooted
and can reset its state machine.

Whenever a new peer is added to the IBSS wpa_supplicant will start the
Open Authentication and only after having accomplished it will start the
key exchange. If the driver does not support Authentication frame
exchange initiated from user space, this step is skipped to maintain
previous behavior (just go through EAPOL-Key frame processing).

The Open Authentication was partly supported by the Linux kernel but now
wpa_supplicant can register for Authentication frames, handle it in
userspace and so avoid any possible race condition.

Signed-hostap: Nicolas Cavallari <cavallar@lri.fr>
Signed-hostap: Antonio Quartulli <antonio@open-mesh.com>
2013-07-21 15:56:53 +03:00
Michal Kazior
c8ebeda406 wpa_supplicant: Add support for VHT BSS membership selector
This allows wpa_supplicant to associate to an AP that has VHT BSS
membership selector set to indicate VHT support is required for the BSS.

Without the patch it was impossible to connect to, e.g., hostapd-based
AP that has require_vht=1. wpa_supplicant was complaining with:
  hardware does not support required rate 63.0 Mbps

Signed-hostap: Michal Kazior <michal.kazior@tieto.com>
2013-07-20 17:28:42 +03:00
Jouni Malinen
5d5c4ee5e0 Remove compiler warnings with CONFIG_NO_SCAN_PROCESSING
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-06-07 20:04:56 +03:00
Jouni Malinen
b06800170a Fix already-associated detection with driver-based BSS selection
wpa_s->pending_bssid is all zeros during connection attempt when
driver-based BSS selection is used. Take this into account when
determining whether new scan results should trigger a connection based
on wpa_s->current_ssid, i.e., a connection attempt with the selected
network instead of selected BSS.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-05-22 16:10:59 +03:00
Jouni Malinen
3636b891b7 Do not try auto connect mechanism in disconnected state
This cleans up debug log by not requesting the auto connect on
dissassociation event if we are already in disconnected state and would
not try to connect anyway.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-05-12 19:18:55 +03:00
Jouni Malinen
6ea1f4135b Try to set WPA-None key after IBSS-joined event
cfg80211 rejects the set_key operations before the IBSS network has been
fully formed, so add one more attempt to set the key for WPA-None at
IBSS joined driver event.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-05-07 18:14:56 +03:00
Jouni Malinen
66562e9c75 Use cached driver capabilities instead of new fetch for each operation
There is no need to repeat the driver capability fetch for each
operation since we already cache driver flags in wpa_s->drv_flags.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-05-07 17:36:40 +03:00
Deepthi Gowri
02db75b6c2 FT: Reset FT flag upon STA deauthentication
Reset ft_completed if STA receives deauthentication
between FT reassoc success and the subsequent initial
mobility authentication and association.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-04-26 17:56:24 +03:00
Jouni Malinen
06b7f58def RSN: Update preauth scan results only based on new scan results
The fast-connect optimization to skip a new scan did not update how the
RSN preauthentication callback is used. There is no point in trying to
add preauthentication candidates from cases where scan was skipped, so
skip this call, too, in such cases.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-04-23 18:24:00 +03:00
Masashi Honma
97236cee6a WPS: Skip rescanning after provisioning if AP was configured
If WPS provisioning step is completed with an AP that is in WPS
configured state, we can skip a second scan after the provisioning step
since the AP is unlikely to change its configuration in such a case.
This can speed up WPS connection a bit by removing an unneeded scan.

Signed-hostap: Masashi Honma <masashi.honma@gmail.com>
2013-03-31 20:06:42 +03:00
Jouni Malinen
cfd31b5026 Use special scan result processing steps only on requesting interface
Scan result events are shared between all virtual interfaces sharing the
same radio. However, some of the steps are not really appropriate on
virtual interfaces that did not issue the scan request. Fix this by
making these steps conditional on the scan results being processed on
the interface that requested them.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-03-18 17:32:31 +02:00
Jouni Malinen
f85f545e71 P2P: Use common function for re-starting P2P scan after station scan
Make the implementation more consistent and cleaner by using a single
function for addressing all the cases where completion of a station mode
scan operation allows a P2P operation (search) to be re-started.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-03-18 17:32:31 +02:00
Jouni Malinen
b6714ca1bb Fix compiler warning when CONFIG_IEEE80211R is not included
Commit 6a1ce39599 moved the bssid
variable declaration to be outside CONFIG_IEEE80211R block and
triggered a compiler warning about unused variable.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-03-13 12:40:57 +02:00
Deepthi Gowri
6a1ce39599 FT: Add support for IEEE 802.11r with driver-based SME
Add NL80211_CMD_UPDATE_FT_IES to support update of FT IEs to the
WLAN driver. Add NL80211_CMD_FT_EVENT to send FT event from the
WLAN driver. This will carry the target AP's MAC address along
with the relevant Information Elements. This event is used to
report received FT IEs (MDIE, FTIE, RSN IE, TIE, RICIE).

Signed-off-by: Deepthi Gowri <deepthi@codeaurora.org>
2013-03-12 20:08:53 +02:00
Dmitry Shmidt
66fe0f703c Add 'SCAN TYPE=ONLY' functionality
Usual manual scan request may cause reassociation due to several
reasons. New command is intended to perform pure scan without taking any
automatic action based on the results.

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2013-02-07 18:09:50 +02:00
Vladimir Kondratiev
ff3ad3c531 Capability matching for 60 GHz band
On the DMG (60 GHz) band, capability bits defined differently from
non-DMG ones. Adjust capability matching to cover both cases.

Also, for non-DMG bands, check ESS bit is set.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
2013-02-07 16:20:18 +02:00
Raja Mani
3140803b6d nl80211: Add ctrl_iface message for AP mode connection rejection
When AP mode operation reject the client, nl80211 layer advertises the
connect failed event with the reason for failures (for example, max
client reached, etc.) using NL80211_CMD_CONN_FAILED.

This patch adds some debug messages whenever such an event is received
from the nl80211 layer and also the same event is posted to the upper
layer via wpa_msg().

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
2013-02-07 15:24:53 +02:00
Sunil Dutt
3887878e53 TDLS: Remove link, if any, on an implicit set up request
If an implicit TDLS set up request is obtained on an existing link or an
to be established link, the previous link was not removed. This commit
disables the existing link on a new set up request. Also,
wpa_tdls_reneg() function was invoking wpa_tdls_start() on an already
existing peer for the case of internal setup, which is incorrect. Thus
the invocation of wpa_tdls_start() is removed in wpa_tdls_reneg() and
also this function is renamed to wps_tdls_remove() as it does not
renegotiation rather shall remove the link (if any) for the case of
external setup.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-05 13:27:56 +02:00
Jouni Malinen
d6bbcce411 Make wpas_select_network_from_last_scan() static
Addition of wpa_supplicant_fast_associate() made it unnecessary to call
wpas_select_network_from_last_scan() directly from other files.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-02-03 21:13:07 +02:00
Paul Stewart
cecdddc184 wpa_supplicant: Implement fast-associate on SelectNetwork
If scan results are available when we perform a SelectNetwork, use
them to make an associate decision.  This can save an entire scan
interval-worth of time in situations where something external to
wpa_supplicant (like a connection manager) has just previously
requested a scan before calling SelectNetwork.

Signed-hostap: Paul Stewart <pstew@chromium.org>
2013-02-03 21:08:31 +02:00
Sunil Dutt
f2e698de7e TDLS: Disable the link also on driver request for teardown
The link was not disabled for the case of implicit trigger from the
driver unlike in the case of explicit trigger fromc ctrl_iface. Make the
tear down sequences match in these cases by adding the TDLS_DISABLE_LINK
tdls_oper to the driver when processing the TDLS_REQUEST_TEARDOWN event.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-01-22 14:09:54 +02:00
Jouni Malinen
cbf61176ed Add more debug info if wpa_supplicant_set_suites() fails
Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:53 +02:00
Jouni Malinen
27c77751f7 WNM: Fix BSS Transition Management Request processing
The WNM-Sleep Mode handler took over WNM Action frame processing without
addressing the previously implemented WNM handler. Fix this by moving
the BSs Transition Management processing into wnm_sta.c to share a
single handler function for WNM Action frames.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-12-22 12:02:15 +02:00
Jouni Malinen
3ab35a6603 Extend EAPOL frames processing workaround for roaming cases
Commit 1ff733383f added a mechanism to
work around issues due to association events and EAPOL RX events being
getting reordered. However, this applied only for the case where
wpa_supplicant is not in associated state. The same issue can happen in
roaming case with drivers that perform BSS selection internally (or in
firmware). Handle that case similarly by delaying received EAPOL frame
processing if the source address of the EAPOL frame does not match the
current BSSID.

Since wired IEEE 802.1X do not have BSSID, make this additional
workaround conditional on BSSID match having been observed during the
previous association.

This fixes issues where the initial EAPOL frame after reassociation was
either dropped (e.g., due to replay counter not increasing) or replied
to with incorrect destination address (the BSSID of the old AP). This
can result in significantly more robust roaming behavior with drivers
that do not use wpa_supplicant for BSS selection.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-12-21 21:35:35 +02:00
Jouni Malinen
2ec535fd37 WNM: Add option to disable keep-alive frames for testing purposes
"wpa_cli set no_keep_alive 1/0" can now be used to disable/enable
keep alive frames to enable testing.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-12-18 16:57:52 +02:00
Jouni Malinen
ad3872a372 WNM: Use CONFIG_WNM more consistently
Replace CONFIG_IEEE80211V with CONFIG_WNM to get more consistent build
options for WNM-Sleep Mode operations. Previously it was possible to
define CONFIG_IEEE80211V without CONFIG_WNM which would break the build.
In addition, IEEE 802.11v has been merged into IEEE Std 802.11-2012 and
WNM is a better term to use for this new functionality anyway.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-12-16 18:22:54 +02:00
Jouni Malinen
cd0ef65784 WNM: Add option for passing TFS request from external programs
The optional tfs_req=<hex dump> parameter can be added for the wnm_sleep
command to specify the TFS request element to use in the WNM-Sleep Mode
Request frame.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-12-16 12:31:16 +02:00
Jouni Malinen
5cc7032239 P2P: Avoid multi-channel scans when they are not needed
If the driver does not support multi-channel concurrency and a virtual
interface that shares the same radio with the current interface is
operating there may not be need to scan other channels apart from the
current operating channel on the other virtual interface. Filter out
other channels in case we are trying to find a connection for a station
interface when we are not configured to prefer station connection and a
concurrent operation is already in process.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-11-25 12:47:43 +02:00
Jouni Malinen
62d4980331 Allow PMF to be enabled by default
Previously, PMF (protected management frames, IEEE 802.11w) could be
enabled only with a per-network parameter (ieee80211w). The new global
parameter (pmf) can now be used to change the default behavior to be PMF
enabled (pmf=1) or required (pmf=2) for network blocks that do not
override this with the ieee80211w parameter.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-11-24 22:21:29 +02:00
Robert Shade
bff954e9a2 Verify that the selected BSS has a better signal level before roaming
This prevents situations like the following where we roam to a
lesser quality BSS just because the signal level delta is over our
threshold.

wlan0: Considering within-ESS reassociation
wlan0: Current BSS: 00:24:6c:74:0a:40 level=-51
wlan0: Selected BSS: 00:24:6c:74:0a:e0 level=-64
wlan0: Request association: reassociate: 0  selected: 00:24:6c:74:0a:e0
    bssid: 00:24:6c:74:0a:40  pending: 00:00:00:00:00:00  wpa_state: COMPLETED

Signed-hostap: Robert Shade <robert.shade@gmail.com>
2012-11-24 17:17:50 +02:00
Jouni Malinen
07783eaaa0 Use deauthentication instead of disassociation if not associated
cfg80211/mac80211 may reject disassociation command if association has
not yet been formed. Use deauthentication in cases where it is possible
that we are associating at the moment the command is issued.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-11-05 16:58:00 +02:00
Jouni Malinen
10737aba22 Handle assoc reject events without wpa_supplicant SME
If the driver indicates the association (or authentication) was
rejected, wpa_supplicant should handle this connection failure similarly
to other cases. Previously, this was only handled with drivers that use
wpa_supplicant SME.

In case of cfg80211-based drivers, a rejected association was actually
already handled since cfg80211 generates a deauthentication event after
indicating connection failure. However, rejected authentication resulted
in wpa_supplicant waiting for authentication timeout to expire which is
unnecessary long wait.

Fix this by calling wpas_connection_failed() to use the common mechanism
to reschedule a new connection attempt with the previously attempted
BSSID blacklisted.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-11-03 13:50:17 +02:00
Jouni Malinen
c9a8221800 Filter out unlikely "pre-shared key may be incorrect" messages
Add a function to filter out known cases of disconnection during 4-way
handshake that are caused by something else than mismatch in PSK. This
commit adds the case where the local end determines a mismatch in
WPA/RSN element between Beacon/Probe Response frames and EAPOL-Key msg
3/4.

This can avoid some potentially confusing "WPA: 4-Way Handshake failed -
pre-shared key may be incorrect" ctrl_iface messages.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-10-08 17:49:54 +03:00
Jouni Malinen
6407f4132f Add disallow_aps parameter to disallow BSSIDs/SSIDs
External programs can use this new parameter to prevent wpa_supplicant
from connecting to a list of BSSIDs and/or SSIDs. The disallowed BSSes
will still be visible in scan results and it is possible to run ANQP
operations with them, but BSS selection for connection will skip any
BSS that matches an entry in the disallowed list.

The new parameter can be set with the control interface SET command
using following syntax:

SET disallow_aps <disallow_list>
disallow_list ::= <ssid_spec> | <bssid_spec> | <disallow_list> | “”
SSID_SPEC ::= ssid <SSID_HEX>
BSSID_SPEC ::= bssid <BSSID_HEX>

For example:
wpa_cli set disallow_list "ssid 74657374 bssid 001122334455 ssid 68656c6c6f"
wpa_cli set disallow_list
(the empty value removes all entries)

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-09-27 17:36:59 +03:00
Jouni Malinen
4c490780e2 P2P: Fix pending-sta-scan processing for concurrent operation cases
If two P2P_FIND commands and a station mode SCAN command are issued in a
sequence with the second P2P_FIND and SCAN commands started before the
initial scan from the first P2P_FIND command has completed,
sta_scan_pending may be left set without an automatic way of getting it
cleared. This can get P2P search stuck if no further station mode scan
operations are run.

Fix this by clearing the sta_scan_pending flag whenever station mode scans
are stopped due to no enabled networks resulting in INACTIVE mode getting
entered. In addition, avoid setting sta_scan_pending flag when a special
scan_res_handler is set so that this does not get enabled on the P2P
Device interface during a P2P search operation.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-09-24 13:46:27 +03:00
Jouni Malinen
ac06fb12f5 P2P: Add more debug prints for GO start routines
This makes it easier to debug issues in starting GO mode.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-24 01:05:51 +03:00
Jouni Malinen
0dd5431312 Do not inform other virtual interfaces of scan results in all cases
If a connection operation is started on an interface based on scan
results, other virtual interfaces should not be information about the
results to avoid potential concurrent operations during the association
steps. Since the sibling notification of scan results received was added
as an optimization, skipping it for this type of cases is the simplest
way of avoiding unnecessary concurrent operations.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-13 18:07:02 -07:00
Jouni Malinen
ab03f6da7a P2P: Schedule new scan if P2P operation delays scan
This makes sure that the interrupted station mode scan can be completed
after the P2P operations have had their chance of using the radio.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-13 18:05:55 -07:00
Jouni Malinen
e665ca9a8d P2P: Move p2p_cb_on_scan_complete to global context
Since we have a global P2P module, the flag to trigger scan completion
events to it needs to be in similar context. The previous design
maintained this separately for each virtual interface and if P2P module
did not run its scan operation on the virtual interface that completed
the scan, P2P module would not be allowed to restart operations
properly.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-13 17:58:22 -07:00
Jouni Malinen
a594e2a9ab Interworking: Skip extra scan after network auto-select
If the scan results from before ANQP fetch are fresh (less than five
seconds old), do not run a new scan when selecting the BSS after having
used Interworking network selection.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-02 20:18:48 +03:00
Jouni Malinen
620c783753 Use BSS entries instead of scan results for BSS selection
This allows the BSS selection functions to be called without having the
scan result data structure. This can be used to skip extra scans in
cases where previous results can be considered fresh.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-02 19:56:57 +03:00
Jouni Malinen
20ed5e40ba Use BSS table instead of scan results in need-to-roam determination
The same information is available in the BSS table, so we can reduce the
need for using the raw scan results in wpa_supplicant_need_to_roam().

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-02 17:39:35 +03:00
Jouni Malinen
bcdf2096bd SME: Fix disconnec-while-authenticating
Commit 0d30cc240f forced
wpa_s->current_ssid to be cleared in wpa_supplicant_mark_disassoc()
which gets called from wpa_supplicant_event_disassoc(). This broke SME
disassoc-while-authenticating workaround for cfg80211. Fix this by
restoring wpa_s->current_ssid in case SME authentication is in progress.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-01 17:20:27 +03:00
Jouni Malinen
0aadd5682f Fix disconnection event processing
Commit 0d30cc240f forced
wpa_s->current_ssid and wpa_s->key_mgmt to be cleared in
wpa_supplicant_mark_disassoc() which gets called from
wpa_supplicant_event_disassoc(). This broke IEEE 802.1X authentication
failure processing and P2P deauthentication notification (group
termination).

Fix this by splitting wpa_supplicant_event_disassoc() into two parts and
make wpas_p2p_deauth_notif() indicate whether the interface was removed.
If so, the last part of disassocition event processing is skipped. Since
the wpa_supplicant_mark_disassoc() call is in the second part, the above
mentioned issues are resolved. In addition, this cleans up the P2P group
interface removal case by not trying to use fast reconnection mechanism
just before the interface gets removed.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-31 22:04:41 +03:00
Jouni Malinen
7b1aa4fe30 Move variable declaration into the beginning of function
The variables used within the #ifndef block here needs to be defined in
the beginning of the function to avoid issues with some compilers.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-30 00:37:59 +03:00
Jouni Malinen
4d5bda5fca Interworking: Add optional use of network selection on normal scans
auto_interworking=1 configuration parameter can be used to request
wpa_supplicant to use Interworking network selection automatically as a
part of the normal (non-Interworking) network selection if the scan
results do not match with enabled networks. This makes scanning work
similarly to the "interworking_select auto" command.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-28 16:14:13 +03:00
Jouni Malinen
f9f0526bcd WPS: Maintain more AP state during WPS PIN iteration
Maintain state of WPS APs during iteration to find the correct AP for
WPS PIN operation when no specific BSSID is specified. This information
can be used for optimizing the order in which the APs are tried. This
commit is only adding the collection of the information and more
detailed debug information to make debug logs more helpful in figuring
out how the AP selection order could be improved.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-27 13:48:11 +03:00
Jouni Malinen
0d30cc240f Clear current_ssid and key_mgmt when disconnected
This makes wpa_supplicant state somewhat cleaner since the information
from previously used connection is not maintained after getting
disconnected.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-26 23:35:08 +03:00
Jouni Malinen
00e5e3d509 Disable network block temporarily on authentication failures
If 4-way handshake fails due to likely PSK failure or if EAP
authentication fails, disable the network block temporarily. Use longer
duration if multiple consecutive failures are seen.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-26 23:35:07 +03:00
Jouni Malinen
99fcd40409 P2P: Allow scan operations during p2p_find
Previously, all station mode scan operations were either skipped or
delayed while any P2P operation was in progress. To make concurrent
operations easier to use, reduce this limitation by allowing a scan
operation to be completed in the middle of a p2p_find. In addition,
allow station mode association to be completed. When the station mode
operation is run to its completion (scan results not acted on,
connection to an AP completed, connection failed), resume the p2p_find
operation.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-23 19:42:53 +03:00
Jouni Malinen
a3f7e5186b Allow non-WPA IEEE 802.1X to be select even if WPA is also enabled
If key_mgmt was set to allow both WPA and non-WPA IEEE 802.1X (i.e., to
IEEE8021X WPA-EAP), non-WPA IEEE 802.1X was rejected while preparing
association parameters. Allow this special case to be handled by
selecting non-WPA case if the scan results for the AP do not include
either WPA or RSN elements.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-15 19:34:04 +03:00
Jouni Malinen
e485286c67 Remove unnecessary bssid_changed check
The os_memcmp of bssid and wpa_s->bssid cannot return 0 in this
code path since identical os_memcmp was already done above.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-11 17:54:43 +03:00
Masashi Honma
0a0c38f63d Do not proceed with association if get_bssid() returns failure
This is the normal flow for association:

wpa_supplicant <--(EVENT_ASSOC event )--  device driver
wpa_supplicant  --( get_bssid()      )--> device driver
wpa_supplicant <--( return BSSID     )--  device driver

However, a device driver could return EINVAL for get_bssid() because it
recognizes it has already been disconnected. When the wpa_supplicant
received EINVAL, the bssid field could be used uninitialized in the
following flow:

wpa_supplicant <--(EVENT_ASSOC event )--  device driver
                                          device driver (receive deauth)
wpa_supplicant  --( get_bssid()      )--> device driver
wpa_supplicant <--( return EINVAL    )--  device driver

Prevent this by requiring the get_bssid() call to succeed when
processing association events.
2012-08-11 17:46:58 +03:00
Xi Chen
75cad1a0d4 WNM: Add WNM-Sleep Mode for station mode
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-01 13:21:27 +03:00
Jouni Malinen
10ac7ddf33 Do not share special scan results with virtual interfaces
When a special scan_res_handler is used the scan parameters may not have
been suitable for other purposes (e.g., during a p2p_find operation). As
such, do not indicate such scan results to other virtual interfaces
using the same radio.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-06-30 20:30:40 +03:00
Gary Morain
0bb1e425b5 Export disconnect reason code to dbus
In the properties changed signal, added a new property
"DisconnectReason", which carries the IEEE 802.11 reason code of the
most recent disassociation or deauthentication event. The reason code is
negative if it is locally generated. The property is sent to the DBUS
immediately so as to prevent it from being coalesced with other
disconnect events.

Signed-off-by: Gary Morain <gmorain@chromium.org>
2012-06-30 16:43:50 +03:00
Tomasz Bursztyka
7c865c6853 Add automatic scanning support
Like bgscan, autoscan is an optional module based feature to automate
scanning but while disconnected or inactive.

Instead of requesting directly a scan, it only sets the scan_interval
and the sched_scan_interval. So, if the driver supports sched_scan,
autoscan will be able to tweak its interval. Otherwise, the tweaked
scan_interval will be used. If scan parameters needs to be tweaked, an
autoscan_params pointer in wpa_s will provide those. So req_scan /
req_sched_scan will not set the scan parameters as they usually do, but
instead will use this pointer.

Modules will not have to request a scan directly, like bgscan does.
Instead, it will need to return the interval it wants after each
notification.

Signed-hostap: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2012-06-26 18:55:41 +03:00
Thomas Pedersen
1b487b8b1e nl80211: Handle CH_SWITCH event
Some drivers may independently decide to switch channels. Handle this by
updating the hostapd and wpa_supplicant AP and GO configuration.

Signed-hostap: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
2012-06-25 14:45:14 +03:00
Jouni Malinen
a0227929dc P2P: Do not use reassociation after getting disassociated
This avoids issues with some APs rejecting a reassociation if the
station is not currently associated as reported by Yossi Wortzel.
The change is based on a patch from Arik Nemtsov.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-06-10 19:51:36 +03:00
Jouni Malinen
f5d4dd5ad4 WNM: Send empty IPv4 packet as keep-alive for now
Use an empty IPv4 packet as the keep-alive packet for WNM BSS max idle
period mechanism. This is not really the best possible frame to use for
this, but for now, it can do until a more suitable frame is figured out
for this (e.g., special LLC header to indicate link test purposes).

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-05-28 14:36:23 -07:00
Jouni Malinen
597c7a8dd8 WNM: Fix build without CONFIG_SME=y
Commit b6668734ab missed #ifdef CONFIG_SME
protection around wpa_s->sme access.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-05-27 18:17:41 -07:00
Jouni Malinen
b6668734ab WNM: Add advertisement of BSS max idle period
If WNM is enabled for the build (CONFIG_WNM=y), add BSS max idle period
information to the (Re)Association Response frame from the AP and parse
this information on the station. For SME-in-wpa_supplicant case, add a
timer to handle periodic transmission of the keep-alive frame. The
actual request for the driver to transmit a frame is not yet
implemented.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-05-27 17:35:00 -07:00
Jouni Malinen
349493bd0c Validate WEP key lengths based on driver capabilities
The nl80211 driver interface does not allow 128-bit WEP to be used
without a vendor specific cipher suite and no such suite is defined for
this purpose. Do not accept WEP key length 16 for nl80211 driver
interface forn ow. wext-interface can still try to use these for
backwards compatibility.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-05-10 14:34:46 +03:00
Jouni Malinen
aa9bb7644b P2P: Allow older scan results to improve p2p_connect-auto robustness
Previusly the peer was assumed to not be operating a GO if the BSS entry
for it was not updated in the single scan run started by
p2p_connect-auto. This is not very robust since a scan may miss the peer
if either a Probe Request or Probe Response frame is lost. Improve
robustness by assuming the peer is still operating the GO and starting
the join operation. If the GO is not found during PD-for-join or the
single-channel scans during the join, fall back to GO Negotiation.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-05-08 17:38:57 +03:00
Jouni Malinen
fea7c3a055 Ignore network blocks that have invalid WEP key length
Do not try to associate with a network that has an invalid or incomplete
configuration because the association or at least data connection would
fail anyway. This commits adds a common function for checking whether a
network block is disabled to make it easier to check network blocks
without having to reject them during configuration file parsing (which
would prevent wpa_supplicant from starting). The only additional check
added in this commit is to verify the WEP key length. Similar checks for
other parameters can be added in future commits.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-05-07 13:39:33 +03:00
Jouni Malinen
3d332fe75e Fix SIM/USIM determination to support EAP-AKA'
Both EAP-AKA and EAP-AKA' use USIM. Without this change, use of real
USIM card for EAP-AKA' was not allowed to proceed, i.e., only the
software simulated USIM operations were supported.

Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
2012-05-05 14:19:13 +03:00
Rajkumar Manoharan
c3701c66a5 Add handling of OBSS scan requests and 20/40 BSS coex reports
Add support for HT STA to report 40 MHz intolerance to the associated AP.
A HT station generates a report (20/40 BSS coexistence) of channel list
if it finds a non-HT capable AP or a HT AP which prohibits 40 MHz
transmission (i.e., 40 MHz intolerant bit is set in HT capabilities IE)
from the scan results.

Parse the OBSS scan parameter from Beacon or Probe Response frames and
schedule periodic scan to generate 20/40 coexistence channel report if
requested to do so. This patch decodes Scan Interval alone from the OBSS
Scan Parameters element and triggers scan on timeout.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-05-03 15:55:38 +03:00
Jouni Malinen
eab6f5e04a Remove unnecessary EVENT_RX_MGMT data validation
Make wpa_supplicant_event() more consistent by not checking
data in either location handling EVENT_RX_MGMT events. This event
is required to specify the data so this pointer cannot be NULL.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-04-21 18:57:13 +03:00
Jouni Malinen
3fc14102f8 P2P: Remove client group on Deauthentication reason code 3
The GO can indicate that the P2P Group session is ending by sending a
Deauthentication frame with reason code 3 (Deauthenticated because
sending STA is leaving) based on P2P specification section 3.2.9. Use
this reason code to remove the P2P client group without waiting for the
group idle timeout.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-04-03 16:45:28 +03:00
Jouni Malinen
e19fded66e Fix Probe Request processing in wpa_supplicant AP mode
Commit 2d43d37ff2 broke EVENT_RX_MGMT
processing in wpa_supplicant AP mode. ap_mgmt_rx() needs to be called
for Probe Request frames even if they get notified through the new
D-Bus signal mechanism.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-04-01 21:27:12 +03:00
Johannes Berg
2d43d37ff2 DBus: Add ability to report probe requests
Some applications require knowing about probe requests to identify
devices. This can be the case in AP mode to see the devices before they
connect, or even in P2P mode when operating as a P2P device to identify
non-P2P peers (P2P peers are identified via PeerFound signals).

As there are typically a lot of probe requests, require that an
interested application subscribes to this signal so the bus isn't always
flooded with these notifications. The notifications in DBus are then
unicast only to that application.

A small test script is also included.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2012-04-01 21:14:48 +03:00
Johannes Berg
baf513d695 Pass signal strength through, fix units
The signal strength is currently never used as the only driver reporting
it is nl80211 which uses IEEE80211_RADIOTAP_DB_ANTSIGNAL which is never
populated by the kernel. The kernel will (soon) populate
IEEE80211_RADIOTAP_DBM_ANTSIGNAL instead though, so use that.

Also, since it was never really populated, we can redefine the signal
field to be in dBm units only.

My next patch will also require knowing the signal strength of probe
requests throughout the code (where available), so add it to the
necessary APIs.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2012-04-01 18:48:12 +03:00
Jouni Malinen
6979582ca6 Fix processing of channel list update events
Commit 6bf731e8ce broke handling of
EVENT_CHANNEL_LIST_CHANGED by introducing a cached copy of the driver
channel list that does not get updated even if driver changes its list.
Fix this by synchronizing the cacched wpa_s->hw.modes information
whenever EVENT_CHANNEL_LIST_CHANGED is processed. This fixes P2P channel
list updates based on regulatory domain hints that may trigger driver to
change its supported channel list.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
intended-for: hostap-1
2012-03-01 17:59:39 +02:00
Jouni Malinen
ef48ff940b Fix CTRL-EVENT-DISCONNECTED event for locally generated disconnection
When wpa_supplicant disconnects, e.g., due to authentication timeout,
we need to go through the EVENT_DISASSOC/DEAUTH processing similarly
to the driver triggered cases to get correct events delivered to the
ctrl_iface. Fix this by calling wpa_supplicant_event() in these cases
and by filtering out the confusing CTRL-EVENT-DISCONNECTED event with
all zeros BSSID.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-03-01 15:42:35 +02:00
Jouni Malinen
f64adcd71e Allow PC/SC reader to be selected and initialized at start
New global configuration parameters pcsc_reader and pcsc_pin can now be
used to initialize PC/SC reader context at start of wpa_supplicant.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-02-26 13:09:30 +02:00
Dmitry Shmidt
e9af53ad39 Add CONFIG_NO_ROAMING option
This can be used to disable wpa_supplicant controlled roaming. It should
be noted that the WPA_DRIVER_FLAGS_BSS_SELECTION capability is the
preferred way for this and CONFIG_NO_ROAMING should be obsoleted once
drivers support the new NL80211_ATTR_ROAM_SUPPORT capability
advertisement.

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2012-02-25 18:22:31 +02:00
Jouni Malinen
cb6710a4a5 Use WPA_INTERFACE_DISABLED with interface removed events
This makes WPA_INTERFACE_DISABLED more consistent in indicating that
wpa_supplicant cannot currently control the interface regardless of
whether the interface is disabled or completely removed.

Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
2012-02-18 13:16:17 +02:00
Jouni Malinen
0f3d578efc Remove the GPL notification from files contributed by Jouni Malinen
Remove the GPL notification text from the files that were
initially contributed by myself.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-02-11 19:39:36 +02:00
Jouni Malinen
ad9ee4d4ca Fix CONFIG_NO_SCAN_PROCESSING=y build
This fixes a build regression from commit
cd2f4ddfb9 by moving
wpa_supplicant_assoc_update_ie() outside the no-scan-processing ifdef
block.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-02-11 10:51:31 +02:00
Jouni Malinen
b1aebbc427 P2P: Do not expire peer entry if we are connected to the peer
Even though we may not update P2P peer entry while connected to the
peer as a P2P client, we should not be expiring a P2P peer entry while
that peer is the GO in a group where we are connected as a P2P client.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-01-25 17:27:47 +02:00
Jouni Malinen
433cd2ce65 Stop sched_scan in number of cases where it should not be running
When a P2P group is removed, we better not leave possibly started
sched_scan running. This could happen when a separate group interface
was not used.

In addition, it looks safer to explicitly stop sched_scan before
starting P2P Listen or Find operations to make sure the offloaded
scanning is not running when doing similar P2P operations.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-01-23 18:26:09 +02:00
Sujith Manoharan
cd2f4ddfb9 Update WPA/RSN IE properly for driver based BSS selection
This patch fixes an issue with roaming for drivers that set
WPA_DRIVER_FLAGS_BSS_SELECTION (currently ath6kl). On moving to an AP
with a different BSSID, an EVENT_ASSOC is received and the subsequent
4-way handshake may fail because of a mismatch between the RSN IE in
message 3/4 and in Beacon/Probe Response. This happens only when the APs
use different RSN IE contents and ap_scan is set to 1, since
wpa_supplicant fails to update its cached IEs.

Initial association may fail, too, in case of multiple APs with
the same SSID, since BSSID selection is done by the driver and again
a mismatch could be seen.

Fix these two issues by clearing and updating the cached IEs on
receiving an Association event from the driver. Also, retrieve the
scan results when the new BSS information is not present locally.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
2012-01-23 17:34:39 +02:00
Jouni Malinen
3d9975d5b0 Do not trigger fast reconnection on locally generated deauth/disassoc
The deauthentication and disassociation events from nl80211 were being
processed identically regardless of whether the frame was generated by
the local STA or the AP. This resulted in fast reconnection mechanism
getting triggered even in the case where the disconnection was detected
locally (e.g., due to beacon loss) while this was supposed to happen
only in the case where the AP is sending an explicit Deauthentication
or Disassociation frame with a specific reason code.

Fix this by adding a new deauth/disassoc event variable to indicate
whether the event was generated locally.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-01-01 18:55:58 +02:00
Bartosz Markowski
8945cc451f Add BSSID into blacklist and do not clean blacklist during countermeasures
If scanning continues during TKIP countermeasures, try to avoid selecting
the BSS that triggered the counter measures.
2011-12-25 21:09:17 +02:00
Jouni Malinen
9b6f44cb63 Process EVENT_SCHED_SCAN_STOPPED partially if interface is disabled
The internal sched_scanning state needs to be cleared on this event
even if the events happen to get ordered in a way that the interface
gets disabled just prior to EVENT_SCHED_SCAN_STOPPED event.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-12-21 13:36:58 +02:00
Jouni Malinen
4551dd9060 Ignore disassociation event in wpa_supplicant AP mode
If the driver was associated in station mode just before the AP mode was
started, the station mode disassociation event may end up getting
delivered to wpa_supplicant only after the AP mode has been started.
This can result in unexpected attempt to reassociate back to the network
that was previously used in station mode. Avoid this by ignoring the
disassociation event.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-12-21 13:36:13 +02:00
Jouni Malinen
74781dfc7b Lower RX_MGMT driver event debug level for Beacon frames
This event can be very frequent in AP mode when Beacon frames from
neighboring BSSes are delivered to user space. Drop the debug
message priority from DEBUG to EXCESSIVE for Beacon frames.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-18 21:48:25 +02:00
Jouni Malinen
5928411e91 Fix compiler warning with CONFIG_NO_SCAN_PROCESSING=y
Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-11 18:14:09 +02:00
Jouni Malinen
c3f4278445 P2P: Add group ifname to P2P-PROV-DISC-* events
If Provision Discovery Request is sent for GO role (i.e., P2P Group ID
attribute is included), add the group interface name to the control
interface event on the GO. This makes it easier to figure out which
ctrl_iface needs to be used for wps_pbc/wps_pin command to authorize
the joining P2P client.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-06 21:57:17 +02:00
Jouni Malinen
d00821e913 Try to reconnect to the same BSS on recoverable disconnection
If the AP disconnects us with a reason code that indicates that it has
dropped the association, but could allow us to connect again, try to
reconnect to the same BSS without going through the full scan. This can
save quite a bit of time in some common use cases, e.g., when inactivity
timeout is used on the AP (and especially, when waking up from suspend
which has likely triggered some timeout on the AP).

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-04 21:57:14 +02:00
Jouni Malinen
bfba8deb8b Update internal MAC address on EVENT_INTERFACE_ENABLED events
This allows the MAC address of the interface to be changed when the
interface is set down even if the interface does not get completed
removed and re-added.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-03 13:20:40 +02:00
Jouni Malinen
56d24b4ee0 Call wpas_connection_failed() only if actually trying to connect
A disconnection event from the driver may end up getting delivered at a
time when wpa_supplicant is not even trying to connect (e.g., during a
scan that was already started after WPS provisioning step). In such a
case, there is not much point calling wpas_connection_failed() and
skipping this avoids confusing attempts of re-starting scanning while
the previous scan is still in progress.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-12-01 18:22:56 +02:00
Jouni Malinen
f7da5a9ef4 Make reconnect-on-disassoc debug prints somewhat more helpful
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-12-01 18:22:10 +02:00
Jouni Malinen
0bf927a03e Use wpa_key_mgmt_*() helpers
This cleans up the source code and makes it less likely that new AKM
addition misses some needed changes in the future.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-24 22:47:46 +02:00
Johannes Berg
dd840f793c AP: Add explicit EAPOL TX status event
The new event can be used when EAPOL TX status can't be reported as a
complete 802.11 frame but is instead reported as just the EAPOL data as
originally passed to hapd_send_eapol().

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-11-19 13:00:30 +02:00
Jouni Malinen
39185dfa54 P2P: Wait until ongoing scan completes before starting P2P find
The P2P_FIND command was failing if it was issued at the moment when
a scan operation was in progress. Avoid returning failure in this
case by scheduling the P2P find to start once the ongoing scan is
completed.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-11-15 21:28:35 +02:00
Ben Greear
6c3771d7d5 Print human readable driver event names
This makes it easier to understand the event related logs.

Signed-hostap: Ben Greear <greearb@candelatech.com>
2011-11-13 19:01:38 +02:00
Jouni Malinen
1bbff09ec5 Process RSN pre-authentication candidates when skipping roam
wpa_supplicant_rsn_preauth_scan_results() needs to be called to
update RSN pre-authentication candidates. This cannot be done before
the wpa_supplicant_connect() call on the first association, but when
trying to figure out whether to roam, it is fine to do so for the
case when roaming is skipped.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-10-30 22:37:12 +02:00
Jouni Malinen
01a1749156 Fix TKIP countermeasures stopping in deinit paths
The eloop timeout to stop TKIP countermeasures has to be canceled
on deinit path to avoid leaving bogus timeouts behind.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-10-30 12:53:20 +02:00
Jouni Malinen
a6d94e1b56 Skip rate set matching if BSS frequency is not known
At least with driver_test.c, the BSS table may not include frequency
information. In such a case, we need to skip rate set matching during
BSS selection to avoid rejecting valid AP.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-10-30 11:46:13 +02:00
Jithu Jance
5cbd88d921 P2P: Fix wpa_supplicant crash on P2P WPS PBC overlap case
Once PBC overlap detected when using dynamic group interfaces, the wpa_s
corresponding to P2P group interface is freed. This patch avoids
accessing the wpa_s data structure after it is freed. This fixes a
possible crash in P2P client role in such a case.
2011-10-24 23:37:39 +03:00
Arik Nemtsov
8f15f711c5 TDLS: Implement low-ack event for lost TDLS peers
Disable the direct connection when a TDLS peer stops responding
to packets, as indicated by the "LOW ACK" event coming from a driver.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:19:08 +03:00
Arik Nemtsov
7de27409a2 TDLS: Support sending a teardown frame from usermode
When a driver does not implement the TDLS_TEARDOWN operation internally,
send an explicit TDLS link teardown frame to the driver.

Change all teardown calls to use these calling semantics.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:18:49 +03:00
Arik Nemtsov
35287637cc TDLS/nl80211: Support receiving TDLS discovery response frames
Register for the TDLS discovery response public action frame in nl80211.
Print out a debug message when a Discovery Resp frame is received and
validated.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:18:35 +03:00
Christian Lamparter
e1e8cae3c7 wpa_supplicant: Check rate sets before joining BSS
IEEE Std 802.11-2007 7.3.2.2 demands that in order to join a BSS all
required basic rates have to be supported by the hardware.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
2011-10-23 17:21:50 +03:00
Jouni Malinen
b832d34c48 Comment out scard initialization code if PCSC_FUNCS is not set 2011-10-23 12:24:36 +03:00
Jouni Malinen
17fbb751e1 Remove user space client MLME
This code was used only with driver_test.c to allow MLME operations
in hostapd to be tested without having to use a real radio. There
are no plans on extending this to any other use than testing and
mac80211_hwsim has now obsoled the need for this type of testing.
As such, we can drop this code from wpa_supplicant to clean up the
implementation of unnecessary complexity.
2011-10-22 22:45:38 +03:00
Johannes Berg
9b90955ec7 AP: Pass only bssid/addr/wds to EVENT_RX_FROM_UNKNOWN 2011-10-20 21:51:32 +03:00
Johannes Berg
bcf24348ed AP: Do station poll in driver wrapper
This offloads the station polling to driver wrappers, which may offload
it again to the driver. The hostap driver wrapper uses "real" data
frames while nl80211 uses null data frames.

Also add a specific event to indicate that a poll was successful for
future use with the nl80211 driver.
2011-10-20 21:03:08 +03:00