If a separate P2P group interface was used, P2P_CONNECT-auto fallback to
GO Negotiation could result in use of freed memory and segmentation
fault. This happened in cases where the peer GO was found in some old
scans, but not in the first scan triggered by the P2P_CONNECT-auto
command ("P2P: Peer was found running GO in older scan -> try to join
the group" shows up in the debug log). In addition, the GO would still
need to reply to PD Request to allow this code path to be triggered.
When five scans for the GO were completed in this sequence, the P2P
group interface was removed as part of falling back to GO Negotiation.
However, that ended up dereferencing the freed wpa_s instance at the end
of scan event processing. Fix this by reordering code a bit and breaking
out from EVENT_SCAN_RESULTS processing if the interface could have been
removed.
Signed-off-by: Jouni Malinen <j@w1.fi>
Do not claim to change the Listen channel in a debug message when
previously configured channel prevents this. In addition, fix a typo in
another related debug print.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The pending interface created during provision discovery should
not be removed on stopping p2p_find. This pending interface has
to be used after completing GO negotiation. Earlier the pending
interface is created just before GO negotiation so there was no
problem.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
If P2PS config method is used for provisioning, upon forming a new GO,
start WPS registrar for the provisioned peer automatically.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This introduces a P2P module callback function that will be used to
create the pending P2PS group after sending PD Response and receiving
ACK status for it.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
When the peer device is trying to form a new group despite having
old persistent group with same roles, remove the stale persistent
group.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This extends wpas_p2p_prov_disc() implementation to accept P2PS
parameters. None of the callers are yet using this functionality; the
following commit introduces a user.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This adds a data structure for storing P2PS PD information and code to
add the related attributes into PD Request. The actual operation to
trigger this behavior will be added in a separate commit.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Add support to parse received GAS requests for ASP services and
prepare GAS responses accordingly.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This extends the P2P_SERV_DISC_REQ control interface command with a new
"asp" service type. This takes service id, service string, and optional
service info as arguments.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
In addition, add a new P2P_SERVICE_REP command that can be used to
replace existing ASP advertisements.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This provides additional WPS definitions and rules for negotiating use
of P2PS default PIN configuration method.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
P2PS seek strings can now be specified in the P2P_FIND control interface
command with one or more optional "seek=<str>" parameters.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It was possible for the previously requested remain-on-channel for P2P
listen state to get canceled before having received driver event
indicating start of that remain-on-channel operation. In such a case,
the event was able to trigger P2P module to start processing listen
timeout even though there was not supposed to be a following listen
operation anymore. Skip the driver event if we are not waiting for a new
listen state.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This new wpa_supplicant configuration parameter can be used to force
passive scanning to be used for most scanning cases at the cost of
increased latency and less reliably scans. This may be of use for both
testing purposes and somewhat increased privacy due to no Probe Request
frames with fixed MAC address being sent out.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Stop any ongoing P2P listen/find flow before starting invitation flow.
This was partially handled in p2p_invite() that called p2p_find(), but
this did not cleanly handle cases such as long_listen.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Use interface's own NFC configuration instead of parent's one
to support a P2P device dedicated interface.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
In many applications it is useful not just to enumerate a group of well
known access points, but to use a address/mask notation to match an
entire set of addresses (ca:ff:ee:00:00:00/ff:ff:ff:00:00:00).
This change expands the data structures used by MAC lists to include a
mask indicating the significant (non-masked) portions of an address and
extends the list parser to recognize mask suffixes.
Signed-off-by: Stefan Tomanek <stefan.tomanek@wertarbyte.de>
On receiving the cancel remain on channel event, the pending_tx
is scheduled immediately and returned. This was preventing
the wpas_p2p_listen_start function from execution thereby resulting
in termination of the long listen operation.
Signed-off-by: Jithu Jance <jithu@broadcom.com>
Previously, any P2P capable interface was skipped in cross connection
uplink consideration. However, this ends up skipping more or less all
nl80211-based driver cases now since they mark the main interface P2P
capable. Relax this rule to allow the parent interface to be used as the
non-P2P station interface for cross connection purposes.
Signed-off-by: Jouni Malinen <j@w1.fi>
While these are using practically large enoungh buffer sizes, it is
better to be more consistent with checking os_snprintf() return value.
Signed-off-by: Jouni Malinen <j@w1.fi>
If p2p_stop_find is issued after the p2p_scan request is triggered to
the host driver, the obtained scan results are also considered to update
the P2P peer entries. This is not always desired behavior, i.e., it can
be clearer if no P2P-DEVICE-FOUND events are generated based of that
final pending scan.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
With the radio work interface, the actual request to start p2p_scan
operation is scheduled from a radio work and hence the initial return
value cannot provide the real result of the driver operation to trigger
a scan. Introduce a new notification API to indicate the scan trigger
status based on which the p2p_scan_running instance can be set using the
real return value from the driver operation.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
In theory, wpas_p2p_disconnect_safely() could have dereferenced the
wpa_s == NULL argument, but in practice, it won't due to the
calling_wpa_s == wpa_s check and wpas_p2p_disconnect() accepting NULL.
Anyway, it is cleaner to add an explicit check for this. (CID 74492)
Signed-off-by: Jouni Malinen <j@w1.fi>
This will be useful to hand-off P2P commands from the parent interface
to its dedicated P2P device if that one is present, in DBus interface.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Save the group common frequencies when starting a GO due to
an invitation signaling requesting to re-invoke a persistent GO.
To do so, move the code that handles the translation of p2p_channels to
frequency list into a public function so it can be re-used both when GO
Negotiation is done and invitation signaling is done.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Once a P2P GO interface is configured, save the group common
frequencies, as this can be useful later for channel selection
considerations during channel switch, etc.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Use the 'no_ir' notation instead of the 'passive scan' and
'no_ibss' notations to match the earlier change in nl80211.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
The extra_roc_dur parameter can now be used in CONFIG_TESTING_OPTIONS=y
builds to simulate driver behavior where the ROC duration gets increased
without user space request.
Signed-off-by: Jouni Malinen <j@w1.fi>
When GC receives invitation response and tries to re-establish
connection to a persistent group channels from passive list should
be allowed. A missing check for operation mode triggered reselection
of operating channel from active channels only to happen and thus fail
the connect attempt.
Add a check for operation mode and if GC instead use negotiated
frequency (i.e. GO operating channel from invitation response).
Signed-off-by: Mikael Kanstrup <mikael.kanstrup@sonymobile.com>
Commit 1595eb93ae ('P2P: Add support for
60 GHz social channel') had an unintended change to how P2P search scans
2.4 GHz social channels. Use of p2p_supported_freq() to filter the list
of social channels ended up using the disallow_freq setting to remove
social channels from the P2P search scans. This is not desired since
peers need to be found on any of the social channels even if those
channels have been disabled from P2P operating channel use. Restore the
previous behavior by included all the 2.4 GHz social channels in P2P
search scans if the driver indicated support for the 2.4 GHz band.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This is needed to allow dynamic removal of an interface that adds the
P2P Device interface without leaving behind the management interface
with invalid wpa_s->parent pointer.
Signed-off-by: Jouni Malinen <j@w1.fi>
It was possible to issue the P2P_GROUP_REMOVE command through the
per-interface control interface. This resulted in freed memory getting
accessed when trying to send the control interface response to the
operation that ended up deleting the group interface. Fix this by
postponing the removal operation until the caller has returned.
Signed-off-by: Jouni Malinen <j@w1.fi>
Commit 152cff6ba6 ('P2P: Remove
WPA_DRIVER_FLAGS_P2P_MGMT option') removed the only non-zero return from
wpas_p2p_stop_find_oper(), but did not remove the useless return value
or the return check in wpas_p2p_stop_find(). Clean these up by removing
unreachable code and useless return value.
Signed-off-by: Eduardo Abinader <eduardo.abinader@openbossa.org>
This information can be used to determine whether the event is generated
for a new peer that was added or due to an update in the information for
an existing peer.
Signed-off-by: Jouni Malinen <j@w1.fi>
len + pos > end comparison here did verify that the length field had a
valid value, but that did not seem to enough to avoid TAINTED_SCALAR
warning. Re-order that validation step to be equivalent "len > end -
pos" to remove these false positives (CID 68116).
Signed-off-by: Jouni Malinen <j@w1.fi>
A P2P Client may be able to connect to the GO even if the WPS
provisioning step has not terminated cleanly (e.g., P2P Client does not
send WSC_Done). Such group formation attempt missed the event
notification about started group on the GO and also did not set the
internal state corresponding to the successful group formation.
This commit addresses the missing part by completing GO side group
formation on a successful first data connection if WPS does not complete
cleanly. Also, this commit reorders the STA authorization indications to
ensure that the group formation success notification is given prior to
the first STA connection to handle such scenarios.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, this variable did not necessarily get cleared between group
formations and could result in some of the workaround operations from
not being executed after the first group formation when using the same
interface for all P2P groups. Fix this by clearing the variable whenever
starting the GO to make sure it is used consistently for each group
formation.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It was possible for group formation timeout to be the trigger for
detecting the second PSK/4-way handshake failure. If that happened, the
special reason=PSK_FAILURE was not used in the P2P-GROUP-REMOVED event
even though P2P-PERSISTENT-PSK-FAIL did get reported. Fix this special
case by replacing the reason code with PSK_FAILURE if the PSK failure
timeout gets registed as part of the disconnection processing in the
formation timeout handler.
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, the case of non-netdev P2P management device ended up
pulling in both the main interface (e.g., wlan0) and P2P Device
interface (from command line -m argument) as configuration. Similarly,
the main interface ended up included both configuration files. This is
not really helpful for various use cases, e.g., when permanent P2P group
information is stored in the P2P Devince interface, but it gets
duplicated in the main station interface configuration.
Clean this up by changing the -m<file> argument to replace, not
concatenate, configuration information. In other words, the main station
interface will not read this configuration and the P2P Device interface
(non-netdev) does not read parameters from the station interface
configuration file.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Support 60 GHz band in P2P module by selecting random social channel
from all supported social channels in 2.4 GHz and 60 GHz bands.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This check is already being done on wpas_p2p_deinit_iface.
Of course, it is assumed wpa_s is not deinit when reaches
that point as a matter of fact.
Signed-off-by: Eduardo Abinader <eduardo.abinader@openbossa.org>
As P2P service are not necessarily attached to a iface, when
added, proceed with same approach on p2p global deinit. Such
approach solves memory leaks ocurring upon wpa_supplicant
termination, when p2p services were registered previously.
Signed-off-by: Eduardo Abinader <eduardo.abinader@openbossa.org>
