This uses the new nl80211 attributes to allow the connect command to
provide bssid and freq hints to the driver without limiting roaming to
the specific BSS/frequency. This can be used by drivers that perform
internal BSS selection (WPA_DRIVER_FLAGS_BSS_SELECTION) as a candidate
for initial association.
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
p2p-nfc.py allowed an NFC Tag to be read and reported to wpa_supplicant
even in cases where it was explicitly asked to initiate negotiated
connection handover and return after completing this operation. The new
command line argument can be used to disable NFC Tag read operations
when a negotiated connection handover is expected.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
If wpa_supplicant reports a failure when trying to generate a handover
request, detect that before trying to decode the response as a hex
string.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.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>
If P2P was disabled (e.g., due to driver not supporting it or through
p2p_disabled=1 configuration), setting Wi-Fi Display parameters could
result in segmentation fault when the WFD IE is updated without the P2P
module being initialized. Fix this by skipping the update if P2P module
is not in use. In addition, show Wi-Fi Display as disabled in "GET
wifi_display" and refuse to enable it with "SET wifi_display 1" if P2P
is not enabled.
Signed-hostap: Jouni Malinen <j@w1.fi>
wpa_supplicant_create_ap() is only called for AP mode, so there is no
point in trying to address station (infra/IBSS) modes.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
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>
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>
Commit 6ac4b15ef8 (wpa_radio work for
connection) caused a regression for cases where multiple auth_alg values
are set in a network block and wpa_supplicant-based SME is supposed to
iterate through them. The connection radio work was not terminated when
receiving authentication failure and this resulted in the following
authentication attempt failing.
Signed-hostap: Jouni Malinen <j@w1.fi>
1. In wpa_config_process_bgscan() fix memory leak after
calling wpa_config_parse_string()
2. In hostapd_config_defaults(), on failure to allocate bss->radius,
conf->bss was not freed.
3. In p2p_deauth_nofif(), memory allocated in p2p_parse_ies() was not
freed in case of NULL minor_reason_code.
4. In p2p_disassoc_nofif(), memory allocated in p2p_parse_ies() was
not freed in case of NULL minor_reason_code.
5. In p2p_process_go_neg_conf(), memory allocated was not freed in
case that the P2P Device interface was not waiting for a
GO Negotiation Confirm.
6. In wpa_set_pkcs11_engine_and_module_path(), the wrong pointer was
checked.
Signed-hostap: Eytan Lifshitz <eytan.lifshitz@intel.com>
Fix memory allocation in wpa_scan_clone_params(), where the
allocation request used the size of a pointer rather than the
size of the structure.
Signed-hostap: Eytan Lifshitz <eytan.lifshitz@intel.com>
This global configuration parameter was added in commit
800d58721c but the tab completion list for
the wpa_cli SET command in interactive mode was not updated.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This avoids issues with multiple instances of dnsmasq running, e.g.,
with one on eth0 and the other one for the P2P group.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
nfcpy does not yet support all the new message formats, so some of the
pretty() calls can result in exceptions.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Fetch a carrier record from wpa_supplicant instead of full handover
request. This makes it easier for external programs to build handover
request messages with multiple alternative carriers.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
If the operation fails for any reason ("FAIL" response), it is cleaner
to return error clearly instead of hitting an exception in the hex
decoder.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.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>
If CONFIG_WPS_TESTING=y is enabled in build configuration, the new
wps_corrupt_pkhash parameter (similar to wps_testing_dummy_cred) can be
used to request public key hash to be corrupted in all generated OOB
Device Password attributes. This can be used for testing purposes to
validate public key hash validation steps.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This allows NFC Configuration Token to indicate the current AP operating
channel, so that a single channel scan can be used to speed up the
initial connection.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
wpa_s->current_bss was updated too late for the
wpa_supplicant_rsn_supp_set_config() call within
wpa_supplicant_select_config(). Re-order code so that current_bss gets
updated between current_ssid update and this call to set the WPA state
machine configuration, so that the new code that determines whether the
current GO support the new IP address assignment mechanism works.
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>
Since wpa_s->conf->wps_nfc_dh_* parameters can be set in number of code
paths, update the wps_context copy of the DH keys even if no new keys
were generated for the request. This tries to avoid some cases where
public key hash may not have matched the public key used in the ER
operation.
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>
New functionality is needed for this with the update NFC connection
handover design that depends on the AP side using the public key hash
from the handover request.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The new WPS connection handover select includes Registrar public key
hash instead of credential. Use the new information to start
abbreviated WPS handshake instead of configuring a new network directly
from the old Credential-from-NFC design.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
It is more useful to be able to build a single NFC carrier record
instead of the full connection handover request message to allow
external components to decide whether to negotiate which alternative
carrier is used. This updates the carrier record contents to the new
design to include Enrollee public key hash and provides this as a
carrier record instead of full message. An external program is expected
to be used to build the full NFC connection handover message with
potentially other alternative carrier records included.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
If the SSID of the WPS AP is known, it should be possible to limit AP
selection based on this when searching for an active WPS AP. This commit
adds a mechanism to specify SSID for this type of uses.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Since the Enrollee can now get the public key hash from the Registrar,
there is need to validate this during the WPS protocol run.
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>
Since the global ctrl_iface can be used with IFNAME= prefix to send
commands to be processed by per-interface code, it should have the same
(well, close to same since the prefix takes some space) limits on
command length as the per-interface ctrl_iface. Increase the buffer from
256 to 4096 to achieve this.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When GAS is used with PMF negotiated, Protected Dual of Public Action
frames are expected to be used instead of Public Action frames, i.e.,
the GAS/ANQP frames are expected to be encrypted. Conver Public Action
GAS queries to use Dual of Public Action frame if PMF has been
negotiated with the AP to which the frame is being sent.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When GAS is used with PMF negotiated, Protected Dual of Public Action
frames are expected to be used instead of Public Action frames, i.e.,
the GAS/ANQP frames are expected to be encrypted. Add support for this
different category of Action frames being used for GAS. The payload
after the Category field is identical, so the only change is in using
the Category field based on what was received in the request frames. For
backwards compatibility, do not enforce protected dual to be used on the
AP side, i.e., follow what the station does.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This makes it more convenient for test scripts to change parameters for
a specific test case without having to separately clear them between
each test case.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
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>
Verify wpa_s->radio pointer before accessing it. If interface addition
fails, this could get called before wpa_s->radio has been set.
The segmentation fault details:
Program received signal SIGSEGV, Segmentation fault.
0x00000000004b9591 in wpas_ctrl_radio_work_flush (wpa_s=0x77fff0) at ctrl_iface.c:5754
5754 dl_list_for_each_safe(work, tmp, &wpa_s->radio->work,
Call stack:
0 wpas_ctrl_radio_work_flush (wpa_s=0x77fff0) at ctrl_iface.c:5754
1 wpa_supplicant_deinit_iface (wpa_s=0x77fff0, notify=0, terminate=0) at wpa_supplicant.c:3619
2 wpa_supplicant_add_iface (global=0x75db10, iface=0x7fffffffe270) at wpa_supplicant.c:3691
3 wpas_p2p_add_p2pdev_interface (wpa_s=0x75dd20) at p2p_supplicant.c:3700
4 main (argc=<optimized out>, argv=<optimized out>) at main.c:317
Function:
5750 void wpas_ctrl_radio_work_flush(struct wpa_supplicant *wpa_s)
5751 {
5752 struct wpa_radio_work *work, *tmp;
5753
5754 dl_list_for_each_safe(work, tmp, &wpa_s->radio->work,
5755 struct wpa_radio_work, list) {
5756 struct wpa_external_work *ework;
5757
5758 if (os_strncmp(work->type, "ext:", 4) != 0)
Root cause:
(gdb) p wpa_s->radio
$1 = (struct wpa_radio *) 0x0
Signed-hostap: Max Stepanov <Max.Stepanov@intel.com>
Scan request failures are observed in wpa_supplicant debug log when
Android framework starts PNO scan in driver via ctrl interface command
'set pno 1' and wpa_supplicant also tries to issue a scan request after
PNO has started in the driver.
Some drivers may reject a normal scan request when PNO is already in
progress. wpa_supplicant should consider PNO status before issuing start
scan request to the driver. Otherwise, wpa_supplicant will get failures
from driver for the scan request and it will end up rescheduling scan
request in periodic interval and get a start scan request failure for
each attempt.
In order to avoid unnecessary scan attempt when PNO scan is already
running, PNO status is checked before issuing scan request to driver.
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>
It should be noted that these commands are not exclusively used for P2P
or in the global context, so use of these commands through the global
control interface for operations that are specific to a single interface
have undefined behavior and that behavior may change in the future. As
such, these are recommend only for operations that are in the global
context (e.g., for P2P management).
Signed-off-by: Dmitry Shmidt <dimitrysh@google.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>
This patch resets the static interface_count to zero in case of
wpa_supplicant_driver_init() call for wpa_s which is in
INTERFACE_DISABLED state. This interface_count is used for the delay of
the scan which is now minimal for dynamically added interfaces. This may
collide with a scan for another interface, but the same is true for any
chosen delay in this scenario. Also the state change to DISCONNECTED is
moved to wpa_supplicant_driver_init() so it will move from
INTERFACE_DISABLED to INACTIVE when there are no enabled networks.
Tested-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Depending on the implementation, the scheduled scan may not give results
quickly when in DISCONNECTED state. This patch resets
wpa_s::normal_scans upon entering to the INTERFACE_DISABLED state so a
normal scan is assured upon going to DISCONNECTED state after the
interface has been re-enabled. This mainly solves a long reconnect time
observed upon repeated kernel driver reloads, i.e., third reload
resulted in a scheduled scan.
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-hostap: Arend van Spriel <arend@broadcom.com>
The information of the peer's supported channel and operating class
is required for the driver to do TDLS off channel operations with a
compatible peer. Pass this information to the driver when the peer
station is getting added.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.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>
All te network blocks and credentials were already cleared, but
configurations blobs should also be cleared here, e.g., to get
more consistent behavior test cases using EAP-FAST PACs.
Signed-hostap: Jouni Malinen <j@w1.fi>
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>
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>
A TX status event could be received after the AP interface has already
been deinitialized. This needs to check for NULL pointer before trying
to indicate the event to AP functions.
Signed-hostap: Jouni Malinen <j@w1.fi>
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>
This can be used to limit which channels are scanned using the specified
list of frequency ranges in the same format that the SCAN command uses.
Signed-hostap: Jouni Malinen <j@w1.fi>
Commit e2f5a9889a was supposed to prevent
new scan request from pushing out the old one. However, it did not
really do that since eloop_deplete_timeout() returned 0 both for the
case where the old timeout existed (and was sooner) and if the old
timeout did not exist. It returned 1 only for the case where an old
timeout did exist and was larger than the new requested value. That case
used to result in wpa_supplicant_req_scan() rescheduling the timeout,
but hew code in eloop_deplete_timeout() did the exact same thing and as
such, did not really change anything apart from the debug log message.
Extend the eloop_deplete_timeout() (and eloop_replenish_timeout() for
that matter since it is very similar) to return three different values
based on whether the timeout existed or not and if yes, whether it was
modified. This allows wpa_supplicant_req_scan() to schedule a new
timeout only in the case there was no old timeout.
Signed-hostap: Jouni Malinen <j@w1.fi>
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>
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>
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>
This type of protection against concurrent connection and offchannel GAS
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>
Avoid concurrent GAS operations with any other exclusive use of the
radio by using the radio work queuing mechanism. This replaces some of
the earlier constraints on concurrent operations with the more generic
wpa_radio work concept.
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 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>
wpa_s->scan_res_handler is set only for cases where a scan operation is
requested for a specific purpose. As such, this callback should only be
called when a scan result from a scan that was triggered by
wpa_supplicant is processed.
Signed-hostap: Jouni Malinen <j@w1.fi>
