Commit graph

352 commits

Author SHA1 Message Date
Ilan Peer
a0c90bb073 P2P: Collect and use extended data on used frequencies
When the number of frequencies supported by the kernel is bigger than
one, and there is a need to pick a frequency for a new flow such as P2P
GO Negotiation or P2P Invitation, the flow should be able to pick the
best frequency among all the frequencies currently used by the device.

In order to prioritize between the currently used frequencies, add
the ability to collect additional data about each used frequency
(if the frequency is used by a station interface or P2P Client)
and when needed select the best frequency, where:

1. Infrastructure interfaces have highest priority
2. P2P Client interfaces have higher priority over AP/GO
   interfaces.

The rational is that the frequency of an AP/GO can change while
that of a station interface cannot.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
2014-06-15 00:21:40 +03:00
Jouni Malinen
0bbaa9b93f Validate driver extended capabilities length against buffer length
Prepare for new extended capabilities bits by checking that the local
buffer is large enough to contain all the bits the driver requests. The
existing buffers are large enough to include anything defined until now,
but it would be possible to add more definitions in the future, so
increase them a bit as well to make this more future proof.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-07 16:35:30 +03:00
Jouni Malinen
d4b951f31b Fix offchannel TX not to retransmit pending frame on callback
If the offchannel TX frame command was offloaded to the driver in
offchannel_send_action(), we must not send another copy of the frame if
a remain-on-channel event happens to be delivered between this TX
command and the matching TX status event. It was possible for the
duplicated frame to cause problems, e.g., with P2P invitation exchange
if the same Invitation Request frame got sent twice and only the first
one getting accepted by the peer.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2014-06-04 16:07:59 +03:00
Dmitry Shmidt
b19c098e75 Send authentication failure reason in wpas_auth_failed()
"WRONG_KEY"   - possibly wrong psk
"AUTH_FAILED" - authentication failure
"CONN_FAILED" - continiuos connection failure

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2014-05-16 18:08:39 +03:00
Hu Wang
dd10abccc8 MACsec: wpa_supplicant integration
Add MACsec to the wpa_supplicant build system and configuration file.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2014-05-09 20:42:44 +03:00
Rashmi Ramanna
41d5ce9e0b P2P: Optimize scan for GO during persistent group invocation
Scan for GO on the negotiated operating channel for few iterations
before searching on all the supported channels during persistent group
reinvocation. In addition, use the already known SSID of the group in
the scans. These optimizations reduce group formation time.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2014-03-25 15:38:33 +02:00
Dmitry Shmidt
d3c9c35f32 Add freq= parameter to 'set pno' command
This allows channels-to-be-scanned to be specified for PNO similarly to
the scan command.

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2014-03-21 23:56:46 +02:00
Peter Qiu
0f44ec8eba Add a reattach command for fast reassociate-back-to-same-BSS
Add "reattach" command to perform single-channel single-ssid scan
instead of full scan when trying to reconnect to the currently
"connected" network (assuming old scan results are not current enough to
skip the scan completely). This allows the scan result to come back in
much faster time. In ath9k, the scan took around 12 seconds with full
background scan, and only 0.1 second with the single-channel single-ssid
scan. Thus, take much less time for the client to re-establish
connection with the currently "connected" network.

Signed-hostap: Peter Qiu <zqiu@chromium.org>
2014-03-11 19:38:01 +02:00
Jouni Malinen
60b893dfb3 wpa_supplicant: Allow external management frame processing for testing
This enables more convenient protocol testing of AP and P2P
functionality in various error cases and unexpected sequences without
having to implement each test scenario within wpa_supplicant.
ext_mgmt_frame_handle parameter can be set to 1 to move all management
frame processing into an external program through control interface
events (MGMT-RX and MGMT-TX-STATUS) and command (MGMT_TX). This is
similar to the test interface that was added to hostapd previously, but
allows more control on offchannel operations and more direct integration
with the internal P2P module.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-03-08 20:21:21 +02:00
Ilan Peer
c16a7590cf wpa_supplicant: Add a configuration file for the P2P_DEVICE parameters
Add an option to specify a configuration file that can be used to hold
the P2P_DEVICE configuration parameters. If this option is not used, the
P2P_DEVICE configuration parameters will be read from interface
configuration file.

Note that it is advised to use this option in some cases such as:

If a P2P_DEVICE is supported by the driver, the wpa_supplicant creates a
dedicated P2P Device interface, where the configuration file used for
the main interface is used. As a consequence, if the configuration file
includes network definition etc., the wpa_supplicant will try to perform
station specific flows on the P2P Device interface which will fail.

If a P2P_DEVICE is supported by the driver and update_config is used,
the P2P Device configuration data will override the main interface
configuration data.

Signed-hostap: Ilan Peer <ilan.peer@intel.com>
2014-03-07 00:11:04 +02:00
Jouni Malinen
a6739e191e HS 2.0R2: Try to scan multiple times for OSU providers
Scan operation is not that reliable, so try couple of times if no
OSU provider matches are found during fetch_osu command.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2014-02-26 01:24:24 +02:00
Jouni Malinen
230e373539 HS 2.0R2: Add GAS operation duration statistics into debug
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2014-02-26 01:24:23 +02:00
Jouni Malinen
b572df8650 HS 2.0R2: Add routine for fetching OSU provider information
The new wpa_cli fetch_osu command can be used to fetch information about
all OSU providers and write that to a text file with the icons in
separate files. cancel_osu_fetch command can be used to stop ongoing OSU
provider list fetch.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2014-02-26 01:24:23 +02:00
Jouni Malinen
3d910ef497 Interworking: Prefer last added network during network selection
Previously, any network block could be used to select the BSS to connect
to when processing scan results after Interworking network selection.
This can result in somewhat unexpected network selection in cases where
credential preferences indicated that a specific network was selected,
but another network ended up getting used for the connection. While the
older networks continue to be valid, add special processing for this
initial post-interworking-connect case to get more consistent network
selection to match with the Interworking network selection result.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2014-02-25 22:37:57 +02:00
Jouni Malinen
f0e30c8410 Do not start another connect work while one is pending
It was possible for the connect or sme-connect radio work to get
re-scheduled while an earlier request was still pending, e.g.,
select_network is issued at the moment a scan radio work is in progress
and the old scan results are recent enough for starting the connection.
This could result in unexpected attempt to re-associate immediately
after completing the first connection.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2014-02-24 15:22:35 +02:00
Andrei Otcheretianski
b3253ebb73 wpa_supplicant: Complete radio works on disable event
While testing rfkill blocking of a scanning interface, it
was seen that the ongoing scan never completes. This happens
since EVENT_SCAN_RESULTS is discarded on a disabled interface.

Fix this and also other possible radio work completion issues
by removing all the radio works (including started) of the
disabled interface.

To be able to remove already started radio works, make their
callbacks be reentrant with deinit flag (when the work
is started), so each radio work should be able to handle
its own termination.

Signed-hostap: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
2014-02-16 00:06:23 +02:00
Jouni Malinen
0b5ff2ae12 WPS: Remove unused Credential AP Channel processing
Commit bd3a373767 added a mechanism to use
AP Channel attribute from within a Credential attribute to optimize
scans. However, this design is not actually used with the WPS NFC use
cases. With configuration token, the AP Channel attribute is in the same
container with the Credential attribute (and that was also handled in
the previous implementation). With connection handover, AP Channel
information is outside the Credential attribute as well.

Simplify implementation by removing the AP Channel within Credential
case. This allows wpas_wps_use_cred() to get the AP Channel from the
container instead of having to find this during credential iteration.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2014-02-04 13:23:35 +02:00
Jouni Malinen
201b0f5fa6 P2P: Add test option to disable IP address assignment request
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2014-01-27 21:44:30 +02:00
Jouni Malinen
25ef8529c1 P2P: Add support for IP address assignment in 4-way handshake
This new mechanism allows P2P Client to request an IPv4 address from the
GO as part of the 4-way handshake to avoid use of DHCP exchange after
4-way handshake. If the new mechanism is used, the assigned IP address
is shown in the P2P-GROUP-STARTED event on the client side with
following new parameters: ip_addr, ip_mask, go_ip_addr. The assigned IP
address is included in the AP-STA-CONNECTED event on the GO side as a
new ip_addr parameter. The IP address is valid for the duration of the
association.

The IP address pool for this new mechanism is configured as global
wpa_supplicant configuration file parameters ip_addr_go, ip_addr_mask,
ip_addr_star, ip_addr_end. For example:

ip_addr_go=192.168.42.1
ip_addr_mask=255.255.255.0
ip_addr_start=192.168.42.2
ip_addr_end=192.168.42.100

DHCP mechanism is expected to be enabled at the same time to support P2P
Devices that do not use the new mechanism. The easiest way of managing
the IP addresses is by splitting the IP address range into two parts and
assign a separate range for wpa_supplicant and DHCP server.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2014-01-27 21:44:26 +02:00
Jouni Malinen
c4f87a701b P2P NFC: Add NFC tag enabling for static handover
The device with the NFC Tag can be configured to enable NFC to be used
with "P2P_SET nfc_tag 1" and "P2P_LISTEN" commands to allow static
handover to be used.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2014-01-27 21:10:56 +02:00
Jouni Malinen
db6ae69e6b P2P NFC: Report connection handover as trigger for P2P
"NFC_REPORT_HANDOVER {INIT,RESP} P2P <req> <sel>" can now be used to
report completed NFC negotiated connection handover in which the P2P
alternative carrier was selected.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2014-01-27 21:10:56 +02:00
Arif Hussain
253f2e3795 P2P: Apply unsafe frequency rules to available channels
This adds a QCA vendor specific nl80211 event to allow the driver to
indicate a list of frequency ranges that should be avoided due to
interference or possible known co-existance constraints. Such
frequencies are marked as not allowed for P2P use to force groups to be
formed on different channels.

If a P2P GO is operating on a channel that the driver recommended not to
use, a notification about this is sent on the control interface and
upper layer code may decide to tear down the group and optionally
restart it on another channel. As a TODO item, this could also be changed
to use CSA to avoid removing the group.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2014-01-27 11:49:05 +02:00
Raja Mani
cf70d2981d wpa_supplicant: Schedule PNO on completion of ongoing sched_scan
When start PNO request comes from control interface, wpa_supplicant
should wait until ongoing sched_scan (triggered by wpa_supplicant)
gets cancelled. Issuing cancel sched_scan and start PNO scan
one after another from pno_start() would lead wpa_supplicant to clear
wps->sched_scanning flag while getting sched_scan stopped event
from driver for cancel sched_scan request. In fact, PNO scan will
be in progress in driver and wpa_s->sched_scanning will not be set
in such cases.

In addition to this change, RSSI threshold limit is passed as part of
start sched_scan request. This was previously set only in pno_start(),
but the same parameter should be available for generic sched_scan calls
as well and this can now be reached through the new PNO start sequence.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2014-01-22 19:41:45 +02:00
Jouni Malinen
c48414af8f P2P: Limit join-a-group scans based on SSID from invitation
If we already know the SSID of the P2P group we are trying to join, use
that SSID to limit scan responses and BSS selection since we do not
really look for any other network in this case. In addition, this can
fix cases where the peer has just changed its SSID (e.g., started a new
group) and there may be multiple BSS entries for the same BSSID.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2014-01-13 21:39:06 +02:00
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
95fb2db242 P2P: Reject group formation on WPS provisioning failure
There is no need to wait for the 15 second group formation timeout to
clear the state if WPS failure is detected during P2P group formation.
Allow the WPS exchange steps (WSC_NACK and EAP-Failure) to be completed
and remove the group to get rid of the extra wait.

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-07 10:45:12 +02:00
Jouni Malinen
b6a9590b34 Interworking: Keep up to two pending GAS_REQUEST responses
Previously, only the last response data was kept in memory. This
increases that to hold up to two last responses to allow some more
parallel operations to be requested. In addition, the response data is
now freed as soon as the external program has fetched it.

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-07 10:45:12 +02:00
Jouni Malinen
1f965e622a Allow external programs to request wpa_radio work items
The new control interface command RADIO_WORK can be used by external
programs to request radio allocation slots from wpa_supplicant if
exclusive radio control is needed, e.g., for offchannel operations. If
such operations are done directly to the driver, wpa_supplicant may not
have enough information to avoid conflicting operations. This new
command can be used to provide enough information and radio scheduling
to avoid issues with such cases.

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-07 10:45:10 +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
6470f471e4 Remove unneeded scan delay on connection-in-progress
This type of protection against concurrent connection and scan
operations is now enforced through the wpa_radio work mechanism, so this
separate protection mechanism is not needed anymore.

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-07 10:45:09 +02:00
Jouni Malinen
6ac4b15ef8 Use wpa_radio work for connection
This protects against conflicting offchannel operations during
connection (authentication, association, EAP exchanges, 4-way
handshake).

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-07 10:45:09 +02:00
Jouni Malinen
e05e130837 P2P: Use radio work to protect offchannel Action frame exchanges
Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-07 10:45:09 +02:00
Jouni Malinen
e1d1c8e223 Use radio work for P2P Listen requests
Avoid concurrent P2P Listen operations 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>
2014-01-07 09:45:32 +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
b1ae396f59 Add framework for exclusive radio operations
The new radio work item concept can be used to request time for an
operation that requires exclusive radio control, e.g., a scan. Once the
radio is available, the registered callback function will be called.
radio_work_done() must be called once the exclusive radio operation has
been completed, so that the radio is freed for other operations. The
special case of deinit=1 is used to free the context data during
interface removal. That does not allow the callback function to start
the radio operation, i.e., it needs to free the allocated resources
and return.

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-05 22:37:03 +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
949938aadf Ask driver to report only new scan results if requested
If the BSS table within wpa_supplicant is flushed, request the driver to
flush its own scan result table during the next scan. This can avoid
unexpected old BSS entries showing up after BSS_FLUSH or FLUSH command
in cases where the driver may maintain its internal cache of scan
results (e.g., cfg80211 BSS table persists at least for 15 seconds).

In addition to doing this automatically on BSS_FLUSH/FLUSH, a new SCAN
command argument, only_new=1, can be used to request a manual scan
request to do same. Though, it should be noted that this maintains the
BSS table within wpa_supplicant. BSS_FLUSH followed by SCAN command can
be used to clear all BSS entries from both the driver and
wpa_supplicant.

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-02 23:03:31 +02:00
Jouni Malinen
c64e3a08a9 P2P: Send received Presence Response information to ctrl_iface monitors
The P2P_PRESENCE_REQ command did not give any easily available
indication of the response received from the GO. Make this more useful
by providing such response (if received) as a ctrl_iface monitor event
(P2P-PRESENCE-RESPONSE).

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-01 18:44:44 +02:00
Jouni Malinen
4848a38d85 Get rid of duplicated cipher suite and AKM definitions
WPA_CIPHER_* and CIPHER_* are used for the exact same set of cipher
suites with the main difference being that the WPA_CIPHER_* version is
suitable to be used as a bitfield. Similarly, WPA_KEY_MGMT_* and
KEY_MGMT_* have similar design for AKMs. There is no need to maintain
two separate copies of the definitions since the bitfield compatible
version can be used for both needs. Get rid of the CIPHER_* and
KEY_MGMT_* versions to clean up the implementation by getting rid of
unnecessary mapping functions.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-31 09:16:27 +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
Jouni Malinen
88c2d48860 Allow passive scan to be requested with SCAN passive=1
This allows external programs to request wpa_supplicant to execute
a passive scan (i.e., do not send any Probe Request frames).

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-26 18:27:48 +02:00
Jouni Malinen
69278f7328 Remove unused last_scan_full
This parameter was not really used for anything else apart from a debug
message in the same function that set it. In addition, cfg80211 returns
the set of scanned frequencies even for the full scan, so the code that
was setting this conditionally on frequency list not being there was not
really ever entered either.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-26 18:27:48 +02:00
Jouni Malinen
fee5234284 Allow channel list to be specified for SCAN command
The new freq=<frequency ranges> parameter to the SCAN command can be
used to request a scan to be performed on the specified set of channels
instead of on all channels. For example, "wpa_cli scan
freq=2400-2500,5180" would scan channels 1-14 and 36. Only the channels
that the driver indicates as enabled and that are within the specified
ranges are included in the request.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-26 16:55:44 +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
51bffab117 WPS: Use monotonic time for AP connection attempt
This is only used for a debug message, but that message prints
the time since the last attempt, so it should use monotonic
time instead of wall clock.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-12-24 08:19:47 +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
151ab808fa P2P: Use monotonic time for GO client waiting
GO activation can fail if the first client doesn't connect
within a certain time, but this should not be dependent on
wall time -- use monotonic time instead.

While at it, use os_reltime_expired().

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-12-24 08:00:03 +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
Johannes Berg
acb69cec6f wpa_supplicant: Use monotonic time for RX/BSS times
The BSS table, scan timeout, and related functionality should use
monotonic time since they care about relative values (age) only.
Unfortunately, these are all connected, so the patch can't be split
further. Another problem with this is that it changes the driver wrapper
API. Though, it seems only the test driver is using this.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-12-24 07:27:02 +02:00
Johannes Berg
46b8d4c004 wpa_supplicant: Use monotonic time for SA query timeout
The SA query timeout is just a regular timeout (currently
hard-coded to 1000 TU), so use monotonic time for it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-12-24 07:17:25 +02:00
Jouni Malinen
202dec2a94 Add shared per-radio structure for wpa_supplicant
struct wpa_radio is used as a shared data structure between all struct
wpa_supplicant instances that share the same physical radio.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-11-24 21:20:14 +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
Michael Schaller
bdec7ee5c9 D-Bus: Add support to set pkcs11_{engine,module}_path
Add SetPKCS11EngineAndModulePath D-Bus method. Add PKCS11EnginePath
and PKCS11ModulePath D-Bus property getters.

Signed-hostap: Michael Schaller <misch@google.com>
2013-11-23 10:48:27 +02:00
Jouni Malinen
217cf4991d P2P: Add more debug prints for frequency selection
This prints out get_shared_radio_freqs() results and related information
from P2P operations to make debug logs more helpful for figuring out
issues related to multi-channel concurrency.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-11-05 11:07:51 +02:00
Eliad Peller
20ea1ca406 P2P: Add VHT parameter to P2P operations
Add the option to ask for VHT operation similarly to the way ht40 is
configured - either by adding 'vht' param to the relevant p2p_*
commands or by configuring p2p_go_vht=1 in the configuration file.

This patch only adds the configuration option (e.g., via control
interface). The actual handling of the VHT parameter (asking the driver
to use VHT, etc.) will be done by the following patch.

Signed-hostap: Eliad Peller <eliadx.peller@intel.com>
2013-10-27 19:46:17 +02:00
Jouni Malinen
af8a827b90 Make frequency range list routines more general
This allows the frequency range list implementation to be shared for
other purposes.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-10-23 00:44:07 +03:00
Kyeyoon Park
c377514337 GAS: Delay GAS query Tx while scanning/connecting
Offchannel operations needed for a GAS query can conflict with ongoing
scan/connection progress, so delay GAS queries if such an operation is
in progress on the current interface or any virtual interface sharing
the same radio.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-10-21 13:15:45 +03:00
Jouni Malinen
bbc6c729a5 P2P: Use group formation timeout on persistent group GO
Previously, GO considered the group to be fully re-invoked after
starting beaconing on successful invitation exchange. This would leave
the group running until idle timeout (which may not be enabled) or
explicit removal if the client fails to connect for any reason. Since
the client is expected to connect immediately after the invitation
exchange that ends with status=0 (i.e., either client initiated the
exchange or it responded with success), extend group formation timeout
to cover that period until the first successfully completed data
connection. This allows the GO to remove the group automatically if the
client devices does not connect within
P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE (15) seconds.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-09-26 21:24:09 +03:00
Jouni Malinen
41f853235f P2P: Extend group formation timeout on GO to first data connection
Previously, GO considered the group to be fully formed at the completed
of WPS provisioning step. This would leave the group running until idle
timeout (which may not be enabled) or explicit removal if the client
fails to connect for any reason. Since the client is expected to connect
immediately after the WPS provisioning step, extend group formation
timeout to cover that period until the first successfully completed data
connection. This allows the GO to remove the group automatically if the
client devices does not connect within P2P_MAX_INITIAL_CONN_WAIT_GO (10)
seconds.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-09-26 20:32:44 +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
Jouni Malinen
01a57fe420 P2P: Maintain list of per-client PSKs for persistent groups
Record all generated per-client PSKs in the persistent group network
block and configure these for the GO Authenticator whenever re-starting
the persistent group. This completes per-client PSK support for
persistent groups.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-09-01 21:35:10 +03:00
Jouni Malinen
05766ed8de P2P: Allow per-device PSK to be assigned
"wpa_cli p2p_set per_sta_psk <0/1>" can now be used to disable/enable
use of per-device PSKs in P2P groups. This is disabled by default.
When enabled, a default passphrase is still generated by the GO for
legacy stations, but all P2P and non-P2P devices using WPS will get
a unique PSK.

This gives more protection for the P2P group by preventing clients from
being able to derive the unicast keys used by other clients. This is
also a step towards allowing specific clients to be removed from a group
reliably without having to tear down the full group to do so.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-09-01 10:14:29 +03:00
Jouni Malinen
c1c0b35fea P2P: Postpone concurrent scans when waiting for first client as GO
Previously, concurrent station mode scans were postponed during an
ongoing P2P group formation up to the point of completed WPS
provisioning step. This would allow a scan to be started before the P2P
client has completed association for the data connection if a scan
request were timed to hit the window between the provisioning step and
the following association. Avoid this by extending P2P-in-progress state
to continue until the first data connection has been completed as part
of group formation. Use a ten second timeout for this to avoid leaving
scans disabled indefinitely if the client fails to connect completely.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-08-27 12:23:10 +03:00
Ilan Peer
53c5dfc2c4 Change share_vif_oper_freq() to handle multiple freqs
There are devices that can operate several channels concurrently.
Change shared_vif_oper_freq() to get_shared_radio_freqs() that can
return an array of frequencies currently used by all the virtual
interfaces that share the same radio.

In addition, move it to wpa_supplicant.c, so it can be used by other
modules.

Signed-hostap: Ilan Peer <ilan.peer@intel.com>
Signed-hostap: David Spinadel <david.spinadel@intel.com>
2013-07-21 20:03:53 +03:00
Ilan Peer
4752147d88 nl80211: Report the number of concurrent support channels
Previously, drivers only reported if they support multiple concurrent
channels, but did not report the maximum number of supported channels.
Add this reporting to the driver capabilities and add the implementation
to driver_nl80211.

Signed-hostap: Ilan Peer <ilan.peer@intel.com>
Signed-hostap: David Spinadel <david.spinadel@intel.com>
2013-07-21 19:49:47 +03:00
Arend van Spriel
c68f6200a7 P2P: Create P2P Device interface if supported
If the capability flag of the driver indicates a dedicated P2P Device is
supported, a P2P Device interface is created.

Create the P2P Device in main interface creation loop when the added
interface flags support and P2P supplicant is not yet initialized
avoiding recursion of add_interface.

Do not register l2_packet for P2P Device interface (both for EAPOL and
for TDLS).

Signed-hostap: Arend van Spriel <arend@broadcom.com>
2013-06-30 10:50:14 +03:00
Jouni Malinen
ec7b97ab00 Interworking: Add support for using eap_proxy offload
Fetch IMSI through eap_proxy for Interworking network selection if
needed.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-06-19 18:42:17 +03:00
Jouni Malinen
fa7ae9501b Add test code for fetching the last configured GTK
This can be useful for some test cases, so allow wpa_supplicant to be
built with special test functionality to expose the current (last
configured) GTK. This is disabled by default and can be enabled by
adding following line into .config:
CFLAGS += -DCONFIG_TESTING_GET_GTK

The GTK can then be fetched with "wpa_cli get gtk".

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-05-20 11:00:56 +03:00
Jouni Malinen
faf9a8585d Add band option (2.4 vs. 5) for filtering scans
This can be used to implement filtering of channels for scan and based
on that, for connection, purposes.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-05-18 12:17:10 +03:00
Jouni Malinen
2925756575 wpa_supplicant: Add -G argument to specify global ctrl group
The optional -G<group> command line argument can be used to specify the
group that can access the global control interface.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-05-18 11:00:05 +03:00
Vinayak Kamath
e27d20bb68 WNM: Add neighbor report processing for BSS Transition Management
Process the neighbor report received in BSS Management Request frames.

Signed-hostap: Vinayak Kamath <vkamat@codeaurora.org>
2013-05-16 17:48:59 +03:00
Deepthi Gowri
36b9883d84 Defer scan if connection is in progress on any of the shared interfaces
Scanning can delay concurrent operations considerably, so it is better
to avoid that while trying to connect on any of the virtual interfaces
that share the same radio.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-05-10 16:10:50 +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
Dmitry Shmidt
e6304cad47 wpa_supplicant: Add option -I for additional config file
This option can be used only for global parameters that are not going
to be changed from settings.

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Signed-off-by: Iliyan Malchev <malchev@google.com>
2013-04-23 17:38:57 +03:00
Jouni Malinen
17b8995cf5 Interworking: Try to use same BSS entry for storing GAS results
There may be cases where multiple BSS entries for a single BSSID are in
the table. This is mostly in automated test cases due to the AP
configuration changes, but something similar could potentially happen as
a corner case in more realistic networks, too, e.g., when an AP changes
its operating channel. Make network selection more robust by trying to
find the exact BSS entry instead of any BSS entry with a matching BSSID
when storing GAS/ANQP response.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-04-01 11:44:04 +03:00
Johannes Berg
8cd6b7bce8 hostapd/wpa_s: Use driver's extended capabilities
Some extended capabilities (I'm currently interested in "Operating Mode
Notification" for VHT) are implemented by the kernel driver and exported
in nl80211. Use these in hostapd/wpa_supplicant.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-03-31 21:51:44 +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
4342326fc7 Add ignore_old_scan_res configuration parameter
This can be used to configure wpa_supplicant to ignore old scan results
from the driver cache in cases where such results were not updated after
the scan trigger from wpa_supplicant. This can be useful in some cases
where the driver may cache information for a significant time and the AP
configuration is changing. Many such cases are for testing scripts, but
this could potentially be useful for some WPS use cases, too.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-03-31 18:05:42 +03:00
Jouni Malinen
dbca75f82a P2P: Remove persistent group peer if it rejects invitation
If a peer replies to persistent group invitation with status code 8
(unknown group), remove the peer from the p2p_client_list if we are the
GO or remove the persistent group if we are the P2P client since it
looks like that the peer has dropped persistent group credentials and
the provisioning step needs to be executed again.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-03-15 16:43:06 +02:00
Johannes Berg
e9ee8dc394 wpa_supplicant: Support VHT capability overrides
Add support for VHT capability overrides to allow testing connections
with a subset of the VHT capabilities that are actually supported by
the device. The only thing that isn't currently supported (by mac80211
and this code) is the RX/TX highest rate field.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-03-10 18:04:39 +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
Jouni Malinen
62769a88db Move cipher to enum wpa_cipher conversion into wpa_common.c
Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-13 18:02:20 +02:00
Jouni Malinen
625f202a74 SAE: Allow enabled groups to be configured
hostapd.conf sae_groups parameter can now be used to limit the set of
groups that the AP allows for SAE. Similarly, sae_groups parameter is
wpa_supplicant.conf can be used to set the preferred order of groups. By
default, all implemented groups are enabled.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:53 +02:00
Jouni Malinen
d136c376f2 SAE: Add support for Anti-Clogging mechanism
hostapd can now be configured to use anti-clogging mechanism based on
the new sae_anti_clogging_threshold parameter (which is
dot11RSNASAEAntiCloggingThreshold in the standard). The token is
generated using a temporary key and the peer station's MAC address.
wpa_supplicant will re-try SAE authentication with the token included if
commit message is rejected with a token request.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:52 +02:00
Jouni Malinen
98efcc4176 SAE: Use a shared data structure for AP and station
This makes it easier to share common functions for both roles.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:52 +02:00
Jouni Malinen
1cfc678723 Remove reassociated_connection variable
This was used to select between "(auth)" and "(reauth)" in
CTRL-EVENT-CONNECTED events. However, the variable was not cleared
anywhere else apart from the AP deinit case. As such, it did not really
provide correct information and is not really of much use even with
proper clearing added. As such, it is cleaner to just get rid of this
altogether.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-12-25 19:51:04 +02:00
Jouni Malinen
03e47c9c3a Share a single function for building extended capabilities element
This makes it easier to update extended capabilities for all uses
within wpa_supplicant.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-12-22 19:17:15 +02:00
Jouni Malinen
b4419c62ad Document offchannel Action frame TX functions
Signed-hostap: Jouni Malinen <j@w1.fi>
2012-12-22 11:06:56 +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
9796a86c23 Use a shared function for requesting a new connection
Both the ctrl_iface and D-Bus interface use similar functionality to
request a new connection. Combine these to a single function to avoid
need to maintain duplicated implementation.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-11-25 16:30:30 +02:00
Jouni Malinen
c27a94f765 Remove unused function prototype
This function was not added, so the prototype should not have been here
either.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-11-25 16:27:19 +02:00
Jouni Malinen
f1a5263389 Maintain maximum blacklist count over list clear operations
wpas_connection_failed() uses the blacklist count to figure out a
suitable time to wait for the next scan. This mechanism did not work
properly in cases where the temporary blacklist gets cleared due to no
other BSSes being available. Address this by maintaining an additional
count of blacklisting values over wpa_blacklist_clear() calls. In
addition, add one more step in the count to timeout mapping to go to 10
second interval if more than four failures are seen.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-11-25 16:20:44 +02:00
Jouni Malinen
4115303bbe Document wpa_s->scan_req
Use an enum with documented values to make it easier to understand how
wpa_s->scan_req is used.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-11-25 15:55:32 +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
Sunil Dutt
6752716663 P2P: Set user_initiated_pd separately from the join parameter
p2p_prov_disc_req() used the join parameter to figure out whether the PD
request was a user initiated or not. This does not cover all use cases
of PD, so add a separate parameter to allow caller to indicate whether
the user requested the operation.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-11-23 00:48:58 +02:00
Jouni Malinen
1e8a6e7553 Remove unused wpa_supplicant_disassociate()
This function is now unused after the last couple of commits that
removed the last uses, so remove this to keep code simpler since all
places that disassociate, can use deauthentication instead.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-11-05 17:05:37 +02:00
Jouni Malinen
bd3a373767 WPS: Use AP Channel attribute in credential to speed up scan
When WPS is used with NFC connection handover, the AP may indicate its
operating channel within the credential information. Use this
informatiom, if present, to speed up the scan process.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-10-28 18:02:04 +02:00
Jouni Malinen
21af6d15a8 SAE: Add Finite Cyclic Group negotiation and Send-Confirm
This replaces the previously used bogus test data in SAE messages with
the first real field. The actual SAE authentication mechanism is still
missing and the Scaler, Element, and Confirm fields are not included.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-10-06 19:30:54 +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
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
7ff833674b Interworking: Fetch only the needed ANQP information
Use configured credentials to figure out which ANQP information needs to
be fetched and only fetch those when using Interworking network
selection. The fetch_anqp command is still fetching all ANQP
information.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-02 21:05:54 +03:00
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
a297201df1 Maintain list of BSS entries in last scan result order
This allows last results to be used even after they have been freed
since the information is copied to the BSS entries anyway and this new
array provides the order in which scan results were processed.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-02 19:53:15 +03:00
Jouni Malinen
4d32c0c44d P2P: Allow p2p_invite-persistent to specify channel for GO
The freq and ht40 parameters can now be used with the p2p_invite
command when reinvoking a persistent group as the GO.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-31 21:20:51 +03:00
Jouni Malinen
9675ce354a WFD: Add Wi-Fi Display support
This commit adds control interface commands and internal storage of
Wi-Fi Display related configuration. In addition, WFD IE is now added
to various P2P frames, Probe Request/Response, and (Re)Association
Request/Response frames. WFD subelements from peers are stored in the
P2P peer table.

Following control interface commands are now available:
SET wifi_display <0/1>
GET wifi_display
WFD_SUBELEM_SET <subelem> [hexdump of length+body]
WFD_SUBELEM_GET <subelem>

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-29 19:51:29 +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
b1f122964e Add generic GAS request mechanism
The new gas_request and gas_response_get commands can be used to request
arbitary GAS queries to be performed. These can be used with ANQP or
with other (including vendor specific) advertisement protocols.

gas_request <BSSID> <AdvProtoID> [Query]
gas_response_get <addr> <dialog token> [offset,length]

For example, ANQP query for Capability list in interactive wpa_cli
session:

> gas_request 02:00:00:00:01:00 00 000102000101
<3>GAS-RESPONSE-INFO addr=02:00:00:00:01:00 dialog_token=0
status_code=0 resp_len=32
> gas_response_get 02:00:00:00:01:00 00
01011c00010102010501070108010c01dddd0c00506f9a110200020304050607
> gas_response_get 02:00:00:00:01:00 00 0,10
01011c00010102010501
> gas_response_get 02:00:00:00:01:00 00 10,10
070108010c01dddd0c00
> gas_response_get 02:00:00:00:01:00 00 20,10
506f9a11020002030405
> gas_response_get 02:00:00:00:01:00 00 30,2
0607

It should be noted that the maximum length of the response buffer is
currently 4096 bytes which allows about 2000 bytes of the response data
to be fetched with a single gas_response_get command. If the response is
longer, it can be fetched in pieces as shown in the example above.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-27 18:13:10 +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
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
Rajkumar Manoharan
e2308e4b45 P2P: Add optional "ht40" argument for p2p_connect
This can be used to start negotiated GO in 40 MHz channel width
in 5GHz band.

Signed-hostap: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
2012-08-15 23:07:44 +03:00
Jouni Malinen
8dba4aef11 P2P: Move group removal reason to a function parameter
wpa_s->removal_reason was set only when calling wpas_p2p_group_delete()
and while couple of call places did not set this, it should really be
set in each case. As such, it works better as a function parameter than
a variable in struct wpa_supplicant.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-11 12:41:31 +03:00
Jouni Malinen
306ae22556 EXT PW: Add framework for supporting external password storage
This new mechanism can be used to make wpa_supplicant using external
storage (e.g., key store in the operating system) for passwords,
passphrases, and PSKs. This commit is only adding the framework part
needed to support this, i.e., no actual configuration parameter can
yet use this new mechanism. In addition, only a simple test backend
is added to allow developer testing of the functionality.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-03 22:15:42 +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
Jouni Malinen
c3d1223848 Reinitialize autoscan on explicit reassocciate/reconnect command
This clears the exponential scan interval back to the base value
when a reconnection is requested explicitly.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-06-26 20:05:51 +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
Jithu Jance
b9cfc09a81 P2P: Add preference setting for concurrent use cases
Add an additional parameter to prioritize either sta or p2p connection
to resolve conflicts arising during single channel concurrency.

Signed-hostap: Jithu Jance <jithu@broadcom.com>
2012-06-10 20:53:09 +03:00
Sunil Dutt Undekari
84286a227b P2P: Improve p2p_prov_disc-auto robustness
Perform addition additional scan runs on the operating channel of the GO
(if known from previous scan results) and fall back to initiate the PD
for GO Negotiation if these additional scans do not detect the peer as
GO.

Signed-hostap: Sunil Dutt Undekari <duttus@codeaurora.org>
2012-06-06 15:46:05 +03:00
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
3bc462cb88 P2P: Add option for Provision Discovery before GO Negotiation
This is a workaround for interoperability issues with some deployed P2P
implementations that require a Provision Discovery exchange to be used
before GO Negotiation. The new provdisc parameter for the p2p_connect
command can be used to request this behavior without having to run a
separate p2p_prov_disc command.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-05-11 16:25:47 +03:00
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
ab28911dbf P2P: Deinitialize global P2P context on P2P mgmt interface removal
The P2P implementation assumes that the first wpa_s interface instance
is used to manage P2P operations and the P2P module maintains a pointer
to this interface in msg_ctx. This can result in issues (e.g., use of
freed memory) when the management interface is removed. Fix this by
deinitializing global P2P data if the interface that created it is
removed. This will disable P2P until the next interface is added.

Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
2012-05-10 10:49:22 +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
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
d211881474 Fix D-Bus build without ctrl_iface
Commit 7de5688d68 started using
wpa_supplicant_ctrl_iface_ctrl_rsp_handle() from the D-Bus code, but
left this function in ctrl_iface.c that is included conditionally. Fix
this by moving the common function into wpa_supplicant.c so that it can
be included for builds that include only either ctrl_iface or D-Bus.

Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
2012-04-27 21:21:31 +03:00
Jouni Malinen
23c84252a4 P2P: Add option to force SSID/passphrase for GO Negotiation
An existing persistent group information can now be used to force GO
Negotiation to use the previously used SSID/passphrase from a persistent
group if we become a GO. This can be used as an alternative to inviting
a new P2P peer to join the group (i.e., use GO Negotiation with GO
intent 15 instead of starting an autonomous GO and using invitation),
e.g., in case a GO Negotiation Request is received from a peer while we
are not running as a GO. The persistent group to use for parameters is
indicated with persistent=<network id> parameter to p2p_connect.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-04-27 18:25:30 +03:00
Jouni Malinen
0918c4bf3b P2P: Add p2p_prov_disc auto mechanism
wpa_supplicant can now be requested to automatically figure out whether
the indicated peer is operating as a GO and if so, use join-a-group
style PD instead of pre-GO Negotiation PD.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-04-26 17:13:03 +03:00
Jouni Malinen
b31be3a0fd P2P: Add automatic GO Negotiation vs. join-a-group selection
p2p_connect command can now be used with an optional "auto" parameter
to request wpa_supplicant to determine automatically whether to use
join-a-group operation (if the peer is operating as a GO) or group
formation. This makes it easier for external programs to handle
connection type selection by offloading this to wpa_supplicant. The
previously used p2p_connect join commands can be replaced with
p2p_connect auto to use this new mechanism.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-04-13 16:04:36 +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
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
Mukesh Agrawal
c6e86b63d2 Create DBus getter/setter for ScanInterval
Enable control of wpa_s->scan_interval via D-Bus. This parameter
controls the delay between successive scans for a suitable AP.

Also, update dbus.doxygen with ScanInterval, and some other
parameters that were undocumented.

Signed-hostap: Mukesh Agrawal <quiche@chromium.org>
2012-04-01 18:05:22 +03:00
Johannes Berg
4f68895e92 debug: Add option to log to Linux tracing
Add the option (-T) to wpa_supplicant to log all debug messages into the
kernel tracing, allowing to aggregate kernel debugging with
wpa_supplicant debugging and recording all with trace-cmd.

Since tracing has relatively low overhead and can be filtered
afterwards, record all messages regardless of log level. However, it
will honor the -K option and not record key material by default.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2012-03-31 13:55:33 +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
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
Jouni Malinen
6f3bc72be0 P2P: Allow channels to be removed from P2P use
A list of disallowed frequencies for P2P channel list can now be
configured with P2P_SET disallow_freq. The frequencies (or frequency
pairs) are comma separated. For example:
wpa_cli p2p_set disallow_freq 2462,5000-6000

The allowed P2P channel list is constructed by removing explicitly
disallowed channels from the channel list received from the driver.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-02-17 22:57:13 +02:00
Jouni Malinen
d445a5cd8e Add BSSID filter for testing purposes
wpa_supplicant can now be configured to filter out scan results based
on a BSSID filter. Space-separated set of allowed BSSIDs can be set
with wpa_cli set bssid_filter command. Filtering mechanism can be
disabled by setting this variable to an empty list. When set, only
the BSSes that have a matching entry in this list will be accepted
from scan results.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-02-16 16:30:13 +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
Ben Greear
80e8a5eef1 Support HT capability overrides
This allows HT capabilities overrides on kernels that
support these features.

MCS Rates can be disabled to force to slower speeds when using HT.
Rates cannot be forced higher.

HT can be disabled, forcing an 802.11a/b/g/n station to act like
an 802.11a/b/g station.

HT40 can be disabled.

MAX A-MSDU can be disabled.
A-MPDU Factor and A-MPDU Density can be modified.

Please note that these are suggestions to the kernel. Only mac80211
drivers will work at all. The A-MPDU Factor can only be decreased and
the A-MPDU Density can only be increased currently.

Signed-hostap: Ben Greear <greearb@candelatech.com>
2012-01-29 21:01:31 +02:00
Dmitry Shmidt
df509539d4 Let wpa_supplicant_deinit_iface() know that process is terminating
This will be needed to be able to move ctrl_iface TERMINATING event to
the end of interface removal.

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2012-01-29 20:15:48 +02:00
Eyal Shapira
b3aa456b3e Interleave wildcard and specific SSID scans when max_ssids=1
For drivers limited to scan a single SSID at a time, this prevents
waiting too long for a wildcard scan in case there are several
scan_ssid networks in the configuration.

Signed-hostap: Eyal Shapira <eyal@wizery.com>
2012-01-29 17:39:08 +02:00
Jouni Malinen
1e7fb4f1b7 WPS: Use single channel scan if AP channel already known
If the BSSID of the AP is specified in the WPS command, the target
AP is likely already in the BSS table and its operating channel is
known. Use this information to speed up connection by only scanning
the known channel.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-31 13:17:20 +02:00
Arik Nemtsov
4f73d88afa Maintain internal copy of Probe Response offload capabilities
Signed-hostap: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2011-12-10 21:11:32 +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
0b7a25c00f Use normal scan before sched_scan if that can speed up connection
When normal scan can speed up operations, use that for the first three
scan runs before starting the sched_scan to allow user space sleep more.
We do this only if the normal scan has functionality that is suitable
for this or if the sched_scan does not have better support for multiple
SSIDs.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-11-28 18:36:36 +02:00
Jouni Malinen
b5c6831201 Add preferred network offload (PNO) functionality
"SET pno <1/0>" ctrl_iface command can now be used to start/stop PNO
with sched_scan driver commands. This will request offloading of
scanning to find any of the enabled networks in the configuration.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-11-28 16:32:44 +02:00