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>
In theory, this call could fail, so check the return value before using
the received data. These specific cases would not really care much about
the failures, but this keeps the code more consistent and keeps static
analyzer warnings more useful. (CID 72678, CID 72679, CID 72680,
CID 72683, CID 72689, CID 72698, CID 72703)
Signed-off-by: Jouni Malinen <j@w1.fi>
Currently to signal PropertiesChanged upon group client
removal (group property), wpa_supplicant dbus uses wpa_s
members like go_dev_addr and current_ssid, for instance.
Thus, deferring p2p client deauth to after dbus notify,
but keeping the same order as before, solves the issue,
as wpa_s is not yet completely deinitialized.
Signed-off-by: Eduardo Abinader <eduardo.abinader@openbossa.org>
While building Association Request frame IEs we should consider adding
P2P IEs only on interface where P2P functionality is enabled. Consider
per interface p2p_disabled parameter before adding P2P IEs to complete
the checks for this.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, the P2P Interface Address of the peer gets updated in the
peer table every time based on the scan results.
For example, in a two port concurrency scenario, where the peer device
has two interfaces with unique P2P Interface Addresses and with same P2P
Device Address, based on the Probe Response/Beacon frames from these two
interfaces, their peer table gets updated, but each of these updates
happens in the peer table only based on the P2P Device Address. So, the
same peer's P2P Interface address is updated every time and hence, at
any instant, only one P2P Device Address to P2P Interface Address
mapping entry exist in the peer table for the peer which has two
interfaces.
When we try to join a group operated by the peer, lookup happens in the
peer table and when an interface entry is not available, the pending
interface address gets overwritten with the P2P Device Address and hence
the P2P connection can fail. Since the BSS table is the one that is
up-to-date, this fix will ensure that the interface overwriting will
happen only when there is no BSS entry for the pending P2P Interface
Address as well.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
In order to find a GO interface, there has to be a
comparison among two SSIDs, instead of a wpa_ssid and
a ssid.
Signed-off-by: Eduardo Abinader <eduardo.abinader@openbossa.org>
When p2p_cancel is invoked while the GO Negotiation Action TX was
pending, the p2p_send_action_work was not getting cleared.
Signed-off-by: Jithu Jance <jithu@broadcom.com>
The PSK/passphrase are needed for the control interface events since the
upper layer UI component is required by the specification to be able to
make this available for manual configuration. However, this is not
needed in the INFO verbosity level debug entry, so split the event
generation into two parts.
Signed-off-by: Jouni Malinen <j@w1.fi>
This makes it easier to change the event message message for indication
when P2P group has stated and removes some duplicated code.
Signed-off-by: Jouni Malinen <j@w1.fi>
This allows external programs to use vendor specific information from
P2P peers without wpa_supplicant having to be able to parse and
understand all such vendor specific elements.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This would not really be needed since these functions check the pointer
above. However, this seems to be too difficult for some static analyzer,
so add the extra check to avoid false reports.
Signed-off-by: Jouni Malinen <j@w1.fi>
This will be useful for a peer to know if it is part of a group either
as a client of our local GO or as the peer GO.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Previously, eight character random passphrase was generated
automatically for P2P GO. The new p2p_passphrase_len parameter can be
used to increase this length to generate a stronger passphrase for cases
where practicality of manual configuration of legacy devices is not a
concern.
Signed-off-by: Jouni Malinen <j@w1.fi>
This removes number of unnecessary #ifdef CONFIG_P2P blocks from generic
code by hiding the conditional build into p2p_supplicant.h with empty
inline functions.
Signed-off-by: Jouni Malinen <j@w1.fi>
Performing a P2P Device flow such as p2p_listen or
p2p_find, can degrade the performance of an active interface
connection, if the listen frequency is different than the
frequency used by that interface.
To reduce the effect of P2P Device flows on other interfaces,
try changing the listen channel of the P2P Device to match the
operating channel of one of the other active interfaces. This change
will be possible only in case that the listen channel is not forced
externally, and will be delayed to a point where the P2P Device
state machine is idle.
The optimization can be configured in the configuration file and
is disabled by default.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
In case there is no preference for the GO operating channel,
try using one of 1, 6, 11 (randomly), and only if the random
selection is not suitable traverse all the channels 1..11.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
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>
This makes the p2p_find default delay value configurable as
p2p_search_delay parameter through the configuration file (and through
control interface "SET p2p_search_delay <value>" on the P2P management
interface.
This parameter controls the number milliseconds of extra delay that is
added between search iterations when there is a concurrent operation in
progress. This can be used, e.g., p2p_search_delay=100 to make p2p_find
friendlier to concurrent operations by avoiding it from taking 100% of
the radio resources. The default value is the previous default, i.e.,
500 ms. Smaller values can be used to find peers more quickly at the
cost of larger effect to concurrent operations while a larger value
leaves more time for the concurrent operations at the cost of making
device discovery take longer time.
The optional p2p_find delay argument can still be used to override the
search delay for each search operation.
Since the P2P_CONCURRENT_SEARCH_DELAY macro is not used anymore, the
driver specific build parameter for bcmdhd from Android.mk is also
removed. Similar configuration can now be achieved with
p2p_search_delay=0 in the p2p0 interface configuration file.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This makes the operations more consistent when going through multiple
persistent group re-invocation sequences in a row. Each invitation needs
to be accepted separately if persistent reconnect is not enabled.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It looks like there was a possible sequence for wpa_s->scan_req to be
MANUAL_SCAN_REQ at the moment a GO is to be started. This could result
in the "Request scan (that will be skipped) to start GO" to actually not
skip the scan and end up stuck waiting for something external to trigger
a scan before the GO could be started. Fix this by clearing
wpa_s->scan_req when deciding to start the GO.
This issue could be hit at least by first enabling autoscan and then
issuing P2P_GROUP_ADD. Other sequences that set wpa_s->scan_req to
MANUAL_SCAN_REQ without going through wpa_supplicant_scan() to clear it
immediately could also have similar effect (and there is even a small
window for the wpa_supplicant_scan() call to happen only after the
P2P_GROUP_ADD command is processed, so this could potentially have
happened even with SCAN + P2P_GROUP_ADD).
Signed-off-by: Jouni Malinen <j@w1.fi>
On receiving CHANNEL_LIST_CHANGED event from driver, verify that local
GO (if any) is operating in valid frequency. If not, we should remove
the group and reform on valid frequency. Indicate this similarly to the
avoid-frequency notification (i.e., a control interface message for
upper layers to react to this for now; potentially CSA later).
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Do not perform extended listen period operations when either a P2P
connection is in progress. This makes the connection more robust should
an extended listen timer trigger during such an operation.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The previous check for dl_list_len() or having an entry from the list is
sufficient, but some static analyzers cannot figure out that
dl_list_first() and dl_list_last() will return non-NULL in this type of
cases. Avoid invalid reports by explicitly checking for NULL.
Signed-off-by: Jouni Malinen <j@w1.fi>
Commit 41d5ce9e0b added scan optimizations
for P2P invitation cases. However, it left a path where the invitation
state was not cleared and as such, introduced potential issues for
following scans that ended up getting incorrectly optimized for a single
channel regardless of parameters. Fix this by clearing p2p_in_invitation
more carefully, especially on p2p_cancel command.
p2p_cancel is now also run from the FLUSH command to avoid issues with
hwsim test cases (e.g., persistent_group_per_sta_psk followed by
ap_open_tdls resulted in an error due to p2p_in_invitation remaining set
after FLUSH).
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
If a separate P2P group interface is used, PBC overlap during group
formation causes the group interface to be removed, which ends up with
the interface context becoming invalid. Fix this by scheduling a timeout
to process the PBC overlap and interface removal instead of removing the
interface directly before the connection operation has returned.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Use P2P group formation timeout to wait for the 4-way handshake to
complete on a persistent reinvocation on a P2P Client.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
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>
Whenever an ongoing GO Neg has failed, due to interface init, the P2P
Device should cancel timeouts and issue wpas_p2p_group_formation_failed,
so the other peer detects faster group formation has failed.
Signed-off-by: Eduardo Abinader <eduardo.abinader@openbossa.org>
If a group interface is present and the command was issued on the group
interface, enable the token for that interface instead of creating a new
one.
Signed-off-by: Manish <manish.bansal@broadcom.com>
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>
wpa_config_write() is defined as a dummy function even if actual
operation to write the configuration file are commented out from the
build. This cleans up the code a bit and removed a compiler warning on
set-only variable.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It looks like discovery_dev_id test case can still fail and based on the
previously added debug prints, this is happening since the P2P module
believes it is not in Listen state even when a P2P_LISTEN was issued.
p2p_listen_cb() did not get called on remain-on-channel event for some
reason, so lets add more debug to find out why this can happen.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
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>
Initialize flag variable explicitly to avoid [-Wmaybeuninitialized]
compiler warning in wpas_p2p_verify_channel().
Signed-hostap: Max Stepanov <Max.Stepanov@intel.com>
P2P persistent connection may fail due to 802.11d channel change event
invalidating support of the operating frequency sent in the invitation
request, before receiving the invitation response. If the operating
frequency is invalid at the time the invitation response is processed
and there is no forced frequency provided by user, allow frequency
re-selection.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
os_free has wfd_dev_info_hex as an argument which is defined within
CONFIG_NO_STDOUT_DEBUG
Signed-hostap: Prashanth Kumar <prashanthkumar.kr@globaledgesoft.com>
This can be used to force an operating channel for P2P group formation
triggered by NFC operations.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
These optional attributes, if present, can be used to speed up the
initial connection by using a single channel scan.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This adds a new P2P Invitation mechanism to invite a P2P Device with an
NFC Tag to an already operating group when the GO with NFC Device reads
the NFC Tag. The P2P Device with the NFC Tag will then accept invitation
and connect to the group automatically using its OOB Device Password.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When "P2P_SET nfc_tag 1" is used to enable the own NFC Tag for P2P, also
enable it for any running GO interface.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
P2P Group ID can optionally be included in the connection handover
messages when acting as a P2P Client in a group. Add this information
and show it in the P2P-NFC-PEER-CLIENT event message.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When the NFC connection handover message received from a peer indicates
that the peer is operating as a GO on a specific channel, use that
information to avoid having to go through full scan. In addition, skip
the separate join-a-group scan since we already know the operating
channel, GO P2P Device Address, and SSID.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The DH public and private key needs to be copied for the separate group
interface if that is used for a P2P group.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Instead of automatically triggering a connection, provide an indication
of one of the devices being a P2P client to upper layers to allow user
to determine what to do next.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Send a P2P-NFC-BOTH-GO event to upper layers to determine what to
do in case both devices going through NFC connection handover are
already operating as a GO.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
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>
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>
WPS_NFC_TAG_READ can be used to report static connection handover where
the connection handover select message was read from an NFC tag.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
"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>
"NFC_GET_HANDOVER_{REQ,SEL} NDEF P2P-CR" can now be used to build P2P
alternative carrier record for NFC connection handover request/select
messages.
Static connection handover case can be enabled by configuring the DH
parameters (either with wps_nfc_* configuration parameters or with
WPS_NFC_TOKEN command at run time. The NFC Tag contents can be generated
with "NFC_GET_HANDOVER_SEL NDEF P2P-CR-TAG" after having configured
Listen channel (p2p_listen_reg_class/p2p_listen_channel).
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
GO Negotiation needs to know which OOB Device Password ID is assigned
for the peer when NFC is used as the trigger.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Provide local GO channel to the P2P module so that it can be used in
messages that indicate the current operating channel.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
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>
A P2P Device while in the Listen state waiting to respond for the
obtained group negotiation request shall give a fair chance for other
concurrent sessions to use the shared radio by inducing an idle time
between the successive listen states. However, if there are no
concurrent operations, this idle time can be reduced.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Use P2P GO's operating channel information, if known, to do a single
channel scan during the join operation.
Signed-hostap: Jithu Jance <jithu@broadcom.com>
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>
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>
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>
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>
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>
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>
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>
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>
Based on priority, remove the connection with least priority whenever
a frequency conflict is detected.
Signed-hostap: Jithu Jance <jithu@broadcom.com>
This field allows adds enough information into the P2P-DEVICE-FOUND
events to figure out if the peer supports Wi-Fi Display.
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
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>
Only force_freq was used in the wpas_p2p_set_own_freq_preference() call
which allowed the P2P module channel re-selection to ignore the
preference for using a channel we are already using. Fix this by setting
either force_freq or pref_freq as the preference based on which one is
set. This allows p2p_ignore_shared_freq parameter to be used whether to
prefer the shared frequency in this case.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
There is no need to use wpas_p2p_num_unused_channels() here in the
default configuration of p2p_ignore_sahred_freq=0, so re-order the
conditions to skip that operation. This is a bit more efficient and the
debug log is also a bit cleaner in the default case.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
p2p_ignore_shared_freq=1 was supposed to allow a MCC-capable device to
ignore a preference for using the same channel on multiple interfaces.
However, it was not used when inviting a peer to re-invoke a persistent
group. This case needs special handling since the peer's channel list is
not available to perform channel reselection and the operating channel
indicated in the Invitation Request frames ends up getting used as the
operating channel if the transmitted of that frames becomes the GO.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
p2p_ignore_shared_freq=1 was supposed to allow a MCC-capable device to
ignore a preference for using the same channel on multiple interfaces.
However, it was not used during processing of an Invitation Request. Fix
that case to use channel preference instead of channel forcing if free
channels are available. This allows p2p_ignore_shared_freq=1 case to
ignore the preference.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
It is confusing to talk about current operating channels being
unavailable for P2P when there are no current operating channels. Make
the debug message easier to understand.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
It is clearer if there is only a single loop of the channel list and
shared debug prints. In addition, the note about current operating
channels not being available is quite confusing if there are no
operating group, so make that part of the message conditional.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Commit 0d08efa447 modified
wpas_p2p_setup_freqs() design to use number of MCC channels capability
from the driver. However, it resulted in regression on how the preferred
vs. forced channel selection is done in the case of a MCC device.
force_freq was set unconditionally even though this was supposed to be
done only if no additional channels are available. pref_freq needs to be
used when possible to avoid preventing connection.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
During persistent group re-invocation, GO may end up using a different
channel as the operation channel compared to what was indicated in the
invitation frames. This may break the connection if the peer device ends
up scanning the GO only on the channel from the invitation frame. Fix
this by using the negotiated channel (if available) on the GO as the
operating channel instead of the channel that was provided in the
p2p_invite command to start negotiation.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
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>
When trying to choose a frequency that can be used for GO instantiation,
properly check if there are free channels that can be used.
Signed-hostap: Ilan Peer <ilan.peer@intel.com>
It was possible for the wpa_s->show_group_started and wpa_s->go_params
to be left set when a P2P group was removed before group formation had
completed. In case a separate P2P group interface was not used, this
could rsult in all future scans using the hardcoded DIRECT-* SSID and as
such, not find the network they were trying to find. Fix this by
clearing these P2P parameters on group removal.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Start GO with VHT support if VHT option was requested
and the appropriate channels are available.
Signed-hostap: Eliad Peller <eliadx.peller@intel.com>
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>
The new p2p_add_cli_chan=1 configuration parameter can be used to
request passive-scan channels to be included in P2P channel lists for
cases where the local end may become the P2P client in a group. This
allows more options for the peer to use channels, e.g., if the local
device is not aware of its current location and has marked most channels
to require passive scanning.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The new p2p_no_go_freq frequency range list (comma-separated list of
min-max frequency ranges in MHz) can now be used to configure channels
on which the local device is not allowed to operate as a GO, but on
which that device can be a P2P Client. These channels are left in the
P2P Channel List in GO Negotiation to allow the peer device to select
one of the channels for the cases where the peer becomes the GO. The
local end will remove these channels from consideration if it becomes
the GO.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Commit 2e5ba4b6d1 moved this to a function
and updated one of the os_snprintf() calls to use the len parameter, but
forgot the other one.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When a GO or P2P Client invites a peer device to join an already
operating group, the Operating Channel in Invitation Request needs to be
forced to the current operating channel of the group.
Signed-hostap: Jouni Malinen <j@w1.fi>
This makes it easier to debug issues related to selecting GO information
from the latest updated BSS table entry.
Signed-hostap: Jouni Malinen <j@w1.fi>
P2P IE may be available from a Beacon frame from a GO even if we have
not yet received a Probe Response frame with P2P IE from that GO. Since
all the needed information for determining the GO's P2P Device Address
and group capabilities are available, use that information instead of
displaying incomplete group information.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This fixes some P2P-join-a-group cases where GO may have been discovered
based on passive scan or non-P2P scan. P2P IEs may have been received
from a Beacon frame in such a case and that information can be used to
create a P2P peer entry, e.g., to allow provision discovery exchange to
be completed.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
If a group was removed before the wait for the first client had timed
out and the client had not yet connected, p2p_go_wait_client could have
been left set and with that, scan operations could be unnecessarily
delayed. This fixes some undesired delays from commit
c1c0b35fea.
Signed-hostap: Jouni Malinen <j@w1.fi>
Commit 41f853235f extends group formation
timeout for the first data connection to complete and resets
p2p_go_group_formation_completed flag due to which p2p_in_provisioning
and p2p_group_formation flags are not cleared when
wpas_group_formation_completed() is called. This can result in both
station scan and p2p_find failures in the case where separate P2P group
interface is not used and the client does not complete 4-way handshake.
Fix this by clearing p2p_group_formation and p2p_in_provisioning when
such a P2P group is deleted.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Update the p2p_go_wait_client timestamp in p2p_go_configured() to
address the case where the group is set up without the provisioning
step.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
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>
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>
It was possiblle for the group formation timeout to be left running even
after the P2P Client connected to the group if the WPS provisioning step
was not completed cleanly (e.g., due to WSC_Done not getting received
from the client). There is no need to remove the group in such case due
to the initial group formation timeout, so work around this by removing
that timeout on data connection.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
wpa_supplicant crashes if driver configuration for AP mode interface
configuration fails after group negotiation. This is because of a
regression from commit 1075b29571 that
ends up freeing the wpa_s instance from within
wpa_supplicant_create_ap() without the caller knowing.
Fix this by using an eloop timeout to free remove the P2P group so that
wpa_supplicant_create_ap() and especially wpa_supplicant_associate()
callers do not need to know about interface getting possibly removed. In
addition, move the P2P specific code into p2p_supplicant.c where it
really belongs. This allows the already existing group formation timeout
to be used by reducing the timeout to zero.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Avoid potential issues with removing a P2P group on PSK failure directly
from the wpa_supplicant_event() call since the caller (in driver_*.c)
may not be prepared for the interface disappearing at that point in
time.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
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>
If a client joins a P2P group multiple times, replace the previous
per-client PSK entry instead of adding a new entry each time.
Signed-hostap: Jouni Malinen <j@w1.fi>
The new control interface command P2P_REMOVE_CLIENT <P2P Device
Address|iface=Address> can now be used to remove the specified client
from all groups (ongoing and persistent) in which the local device is a
GO. This will remove any per-client PSK entries and deauthenticate the
device.
Signed-hostap: Jouni Malinen <j@w1.fi>
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>
Even after listen duration is over, P2P module remained in
P2P_LISTEN_ONLY state, which is blocking station mode scans. Fix this by
stopping P2P listen explicitly to update p2p_state to IDLE when listen
duration expires.
Signed-hostap: Syed Asifful Dayyan <syedd@broadcom.com>
By default, P2P is initialized for all driver interfaces and this makes
P2P getting initialized for non-P2P station interface if the supplicant
is started first on this interface. If an interface is dedicated for
non-P2P station mode, it is now possible to disable P2P initialization
by adding 'p2p_disabled=1' in the configuration file of non-P2P station
interface, irrespective of the order in which supplicant is started.
Signed-hostap: Sreenath Sharma <sreenats@broadcom.com>
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>
This provides status information about the negotiated group to
wpa_supplicant control interface monitors during group formation in a
form that is easier to use than having to fetch the information
separately.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When 'p2p_group_remove *' is called while the station interface
is connected, the flow also disconnects the station interface.
Fix this by skipping non-P2P interfaces in the iteration.
Signed-hostap: Ilan Peer <ilan.peer@intel.com>
This reverts commit ce970851af.
It turned out that this breaks lots of use cases where p2p_find is
issued while already in p2p_listen state. As such, we cannot reject
p2p_find this easily without checking for more specific cases.
Signed-hostap: Jouni Malinen <j@w1.fi>
