The per-interface P2P data freeing function did not cover this eloop
timeout that could potentially have been registered. Explicitly cancel
this timeout to make sure no references to freed memory can remain in
such a case.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
wpa_supplicant_remove_iface() removes the P2P management interface from
the global interfaces list before calling wpa_supplicant_deinit_iface().
When wpas_p2p_group_remove() is called from
wpa_supplicant_deinit_iface(), the P2P group created on the calling
wpa_s was not getting cleared as the calling wpa_s is not in the list of
global->ifaces. This results in the P2P management interface being
removed without disconnecting the p2p_group created on it. This could
result in an illegal access of freed memory, e.g., when a pending eloop
task wpas_p2p_reconsider_moving_go() was triggered with the leftover ctx
pointer to the removed P2P interface instance.
Fix this by disconnecting the P2P group created on interface to be
deinitialized before deinitializing the interface.
Signed-off-by: Veerendranath Jakkam <vjakkam@codeaurora.org>
With the configuration defined in the global_op_class array, the
channels starting from 149 in the operating classes 128 and 130 were not
considered for P2P channel setup due to the non-continuous
incrementation of channel indexes. The other channels in these operating
classes were considered. Handle the channels from 149 to 161 in the
operating classes 128 and 130 for P2P channel setup by handling this
jump in the channel number incrementation.
Signed-off-by: Sreeramya Soratkal <ssramya@codeaurora.org>
Use global configuration parameters while invoking a persistent P2P
group after accepting P2P Invitation Request from a peer.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
PASN authentication can be performed while a station interface is
connected to an AP. To allow sending PASN frames while connected, extend
the send_mlme() driver callback to also allow a wait option. Update the
relevant drivers and wpa_supplicant accordingly.
hostapd calls for send_mlme() are left unchanged, since the wait option
is not required there.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Avoid adding more than P2P_MAX_REG_CLASSES operating classes or
P2P_MAX_REG_CLASS_CHANNELS channels while populating P2P channels. The
current limits on the operating classes or channels per operating class
could be hit in some case (mainly, with 6 GHz, but in theory, with a
2.4/5/60 GHz capable device as well).
If the local driver advertised a larger number of supported operarting
classes or channels per operating class, the construction of the struct
p2p_reg_class instances could have resulted in writing beyond the end of
the buffer and ending up corrupting memory around the struct p2p_config.
This could result in unexpected behavior in some other operations that
used corrupted memory, e.g., generation of a P2P Channel List failing
(with validation code stopping the process to avoid writing beyond the
end of the message buffer) due to not having sufficient buffer space for
the corrupted data.
This issue is triggered only based on information from the local driver
(mainly based on addition of support for 6 GHz band operating classes),
so the issue cannot be triggered based on received frames or any other
remote information.
The issue was introduced by commit d7c2c5c98c ("AP: Add initial
support for 6 GHz band") which added the operating class 131 which has
sufficiently large number of channels to go beyond the
P2P_MAX_REG_CLASS_CHANNELS limit.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
The 5 GHz channels are stored in one hw_features set with mode
HOSTAPD_MODE_IEEE80211A while the 6 GHz channels will need to be stored
in a separate hw_features set (but with same mode
HOSTAPD_MODE_IEEE80211A) due to possibility of different HT/VHT/HE
capabilities being available between the 5 GHz and 6 GHz bands.
Iterate through all hw_features sets and check and match the band of
channel supported by the hw_features set while getting the hw_features
set in get_mode(). This allows both the 5 GHz and 6 GHz channels to be
found and correct capabilities to be used in cases where the driver
reports different capability values between 5 and 6 GHz channels.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This variable is not specific to any P2P group interface and since it
was already used through global->p2p_init_wpa_s, it is cleaner to simply
move this to the global structure so that there is a single variable
instead of per-interface variables and need to pick the correct
interface.
Signed-off-by: Jouni Malinen <j@w1.fi>
The p2p_long_listen value was set on the control wpa_s struct while in a
lot of cases it operated on the p2p struct. Explicitly use the global
p2p_init_wpa_s struct in cases where we might not be operating on it
already.
Without this, simply starting a p2p_listen operation (e.g., using
wpa_cli) will not work properly. As the p2p_long_listen is set on the
controlling interface and wpas_p2p_cancel_remain_on_channel_cb() uses
p2p_init_wpa_s, it would not actually work. This results in
wpa_supplicant stopping listening after the maximum remain-on-channel
time passes when using a separate P2P Device interface.
Signed-off-by: Benjamin Berg <bberg@redhat.com>
This allows a P2P connection over P802.11ay EDMG channels to achieve the
highest link speed that the standard allows for channel bonding (CB) up
to CB4.
Let each P2P peer add its EDMG channels to the Supported Channels IE
advertised in P2P GO negotiation. Give EDMG channels priority when peers
negotiate for operating channel.
User may add 'edmg' parameter to p2p_connect, p2p_add_group, and
p2p_invite commands to prefer an EDMG channel for the P2P link. User may
also set p2p_go_edmg=1 in wpa_supplicant configuration file to prefer
EDMG.
When EDMG is used, P2P will try to find the highest channel bonding
supported channel that matches the frequency parameter, if the devices
do not support EDMG, the P2P connection will use a legacy (1-6) 60 GHz
channel.
Signed-off-by: Ahmad Masri <amasri@codeaurora.org>
In order to set up P2P connection with HE capability,
the 'he' flag should be passed to GO negotiation result.
Signed-off-by: Yu Wang <yyuwang@codeaurora.org>
This increases the priority of the p2p-send-action radio work, i.e., the
radio work used for transmitting potentially offchannel P2P Action
frames by marking it as the next radio work to execute. This is to avoid
the delay in transmissions due to already queued offchannel radio work
items in the queue. In particular, this means not having to wait for a
pending p2p-scan radio work to be executed before the new P2P Action
frame can be transmitted. This helps in avoiding timeouts on the peer
device when a P2P Action frames is received during other activity on the
device.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
The previous implementation rejects the p2p-send-action work while there
is already one in progress (wpas_send_action_cb() has already been
called for it to start operation). Enhance the same to also consider any
p2p-send-action works pending in the radio work (i.e., waiting for that
wpas_send_action_cb() call).
This is considering the current behaviour of P2P to handle the state
corresponding to respective Action frame transmission:
pending_action_state. If a new P2P Action frame transmission is queued
while there is another one already in the queue, the transmit status of
the first frame is wrongly intepreted by the P2P state machine which has
already scheduled/queued another frame for transmission.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
The bandwidth values are shared between VHT and HE mode so remove the
VHT specific prefix.
Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
pending_p2ps_group flag is not always cleaned, which may later result
in an unexpected GO bring up, after PD response is transmitted in
wpas_prov_disc_resp_cb().
This can be seen when running the following hwsim tests together:
- p2ps_channel_sta_connected_disallow_freq_mcc
- p2ps_channel_active_go_and_station_different_mcc
Fix this by clearing pending_p2ps_group flag also when processing new
PD requests. In addition, set this flag only when really needed.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
wpas_p2p_completed() used wpa_sm_get_p2p_ip_addr() return value properly
for filling in the ip_addr[] string only if the IP addresses got
assigned, but the raw ip[] array was passed to
wpas_dbus_signal_p2p_group_started() regardless of whether the IP
addresses were assigned. This could result in using uninitialized stack
memory for constructing the GroupStarted signal values. Fix this by
filling those in only if the IP addressed are actually available.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
wpa_s->p2p_go_do_acs was not cleared during P2P group deletion and that
resulted in the case of no separate group interface continuing to assume
ACS was to be used for consecutive GO starts even if they tried to
specify a frequency. Fix this by explicitly clearing
wpa_s->p2p_go_do_acs during P2P group deletion and also clear this when
processing the P2P_GROUP_ADD if the parameters do not request ACS to be
used.
Fixes: 37ed3254de ("P2P: ACS offload for the autonomous GO")
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
The Wi-Fi Alliance Multi-AP Specification v1.0 allows onboarding of a
backhaul STA through WPS. To enable this, the backhaul STA needs to add
a Multi-AP IE to the WFA vendor extension element in the WSC M1 message
that indicates it supports the Multi-AP backhaul STA role. The Registrar
(if it support Multi-AP onboarding) will respond to that with a WSC M8
message that also contains the Multi-AP IE, and that contains the
credentials for the backhaul SSID (which may be different from the SSID
on which WPS is performed).
Introduce a new parameter to wpas_wps_start_pbc() and allow it to be
set via control interface's new multi_ap=1 parameter of WPS_PBC call.
multi_ap_backhaul_sta is set to 1 in the automatically created SSID.
Thus, if the AP does not support Multi-AP, association will fail and
WPS will be terminated.
Only wps_pbc is supported.
This commit adds the multi_ap argument only to the control socket
interface, not to the D-Bus interface.
Since WPS associates with the fronthaul BSS instead of the backhaul BSS,
we should not drop association if the AP announces fronthaul-only BSS.
Still, we should only do that in the specific case of WPS. Therefore,
add a check to multi_ap_process_assoc_resp() to allow association with a
fronthaul-only BSS if and only if key_mgmt contains WPS.
Signed-off-by: Davina Lu <ylu@quantenna.com>
Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Cc: Marianna Carrera <marianna.carrera.so@quantenna.com>
This speeds up P2P responses to frames received on an operating channel
in case there is an ongoing P2P listen operation on another channel.
This is applicable to drivers that support multiple channels in
concurrently.
This addresses an issue showing up in the
p2ps_channel_active_go_and_station_different_mcc test case where the
Provision Discovery Request frame can be received on the operating
channel of a group instead of the Listen channel. The response was
delayed until the listen operation timed out and this took too long time
for the peer to receive the response.
Signed-off-by: Jouni Malinen <j@w1.fi>
The avoid channels are notified through
QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY allow minimal traffic, so
enhance the P2P behavior accordingly by considering these avoid
frequencies for P2P discovery/negotiation as long as they are not in
disallowed frequencies list.
Additionally, do not return failure when none of social channels are
available as operation channel, rather, mark the op_channel/op_reg_class
to 0 as this would anyway get selected during the group formation in
p2p_prepare_channel.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
To enhance privacy, generate a random interface for each group.
There are two configurations are introduced:
* p2p_interface_random_mac_addr
enable interface random MAC address feature, default disable.
Signed-off-by: Jimmy Chen <jimmycmchen@google.com>
To enhance privacy, generate a random device address for P2P interface.
If there is no saved persistent group, it generate a new random MAC
address on bringing up p2p0. If there is saved persistent group, it will
use last MAC address to avoid breaking group reinvoke behavior.
There are two configurations are introduced:
* p2p_device_random_mac_addr
enable device random MAC address feature, default disable.
* p2p_device_persistent_mac_addr
store last used random MAC address.
Signed-off-by: Jimmy Chen <jimmycmchen@google.com>
An optional parameter "he" is added to p2p_connect, p2p_group_add, and
p2p_invite to enable 11ax HE support. The new p2p_go_he=1 configuration
parameter can be used to request this to be enabled by default.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
During P2PS PD Request processing wpa_supplicant removes stale and empty
persistent groups, but it did not notify D-Bus to unregister object. Fix
this by adding the missing notifications.
Signed-off-by: Jouni Malinen <j@w1.fi>
During P2PS PD Request processing wpa_supplicant removes stale
persistent groups, but it did not notify D-Bus to unregister object.
This can result in leaving behind objects pointing to freed memory and
memory leaks. Sometime it can cause a crash in wpa_config_get_all()
function and DBUS_ERROR_OBJECT_PATH_IN_USE errors.
Fix this by adding the missed notification to D-Bus code to unregister
the object.
Signed-off-by: Amit Khatri <amit7861234@gmail.com>
When a dedicated P2P device interface is used, the
global->p2p_group_formation was not set in wpas_p2p_join_start() if no
separate group interface is used. This would cause that in case of a
failure in group formation, the cleaning of p2p_in_provisioning is done
on the wrong interface. Furthermore, P2P_CANCEL command could not be
used to stop such a group-join operation. Fix this by setting the
global->p2p_group_formation correctly in case that the group interface
is reusing wpa_s->parent.
Signed-off-by: Adiel Aloni <adiel.aloni@intel.com>
Prefer channels that support VHT80 (and secondarily, HT40 on the same
band) over other common group channels. If no such channel is found,
prefer any channel that uses the same band so that CSA can be used. This
improves the case where a P2P GO needs to move to another channel and
there is no other reason (e.g., preferred channel from the driver or an
already used channel from a virtual interface sharing the same radio) to
pick a specific channel.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Add an explicit comment noting a previously undocumented fallthrough to
not trigger an implicit-fallthrough warning.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Mark a channel as required DFS based on regulatory information received
from the driver/kernel rather than deciding based on hardcoded
boundaries on the frequency. Previously few channels were being marked
as requiring DFS even though they were non-DFS in a particular country.
If the driver does not provide channel list information, fall back to
the previously used frequency-based determination.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit introduces the ACS functionality for the autonomous GO. The
optional parameter <freq> in p2p_group_add is enhanced to carry a value
"acs" with the intention to select the channels among any supported
band. freq = 2 / 5 carry the need to select the channels only in the
respective bands 2.4 / 5 GHz. This functionality is on top of the host
driver's capability to offload ACS, which is advertized through
WPA_DRIVER_FLAGS_ACS_OFFLOAD.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
While considering the movement of P2P GO from its current operating
channel, do not mark a DFS channel as invalid if DFS is offloaded
to the driver.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, wpas_p2p_select_go_freq_no_pref() ended up selecting a 2.4
GHz band channel first before even considering 5 or 60 GHz channels.
This was likely done more or less by accident rather than by design when
the 5 GHz and 60 GHz band extensions were added. It seems reasonable to
enhance this by reordering the code to start with 5 and 60 GHz operating
classes and move to 2.4 GHz band only if no channel was available in 5
or 60 GHz bands for P2P GO use.
This does have some potential interop issues with 2.4 GHz only peer
devices when starting up an autonomous GO (i.e., without there being
prior knowledge of channels that the peers support). Upper layers are
expected to enforce 2.4 GHz selection if that is needed for some use
cases.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This adds new wpa_supplicant configuration parameters (go_interworking,
go_access_network_type, go_internet, go_venue_group, go_venue_type) to
add a possibility of configuring the P2P GO to advertise Interworking
element.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
If a DFS forced frequency is provided in 'p2p_group_add' and the driver
supports DFS offload, the frequency was rejected in
wpas_p2p_init_go_params(). However, it was accepted in
wpas_p2p_select_go_freq() and wpas_p2p_group_add(). To make the behavior
consistent, the DFS frequency is now accepted in
wpas_p2p_init_go_params() similar to the way done in
wpas_p2p_select_go_freq().
Redundant check in wpas_p2p_group_add() for DFS forced frequency is
removed.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This can be helpful in figuring out what happened if P2P_FIND operation
is unexpectedly rejected.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
wpa_s->p2p_in_provisioning needs to be cleared when group formation
fully completes. The change to postpone GO side handling to the first
data connection in commit 41f853235f
('P2P: Extend group formation timeout on GO to first data connection')
resulted in making this not happen in one P2P Client side case: EAP-WSC
timeout in PBC case. While that is quite special case since it requires
30 second timeout without receiving new EAPOL frames and not getting
disassociation, it can apparently happen in some cases in practice. This
would result in new P2P operations (e.g., P2P_FIND) getting rejected
until wpa_supplicant is restarted.
Fix this by clearing wpa_s->p2p_in_provisioning whenever processing a
group formation failure case. For group formation success,
wpa_s->p2p_in_provisioning is left set to non-zero value to avoid
breaking the earlier limits on the GO side.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is similar to the commit
783c2920cc ('P2P: Check if the pref_freq
reported by the driver supports P2P') but extends the check for
supported pref_freq to wpas_p2p_select_go_freq().
This avoids issues with P2P_GROUP_ADD ending up selecting an unexpected
channel when get_pref_freq_list() (i.e.,
QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST) is used. Filter the
list by removing channels that do not allow P2P operation at all.
Previously, only the explicitly disallowed channels were removed and
that could have resulted in selecting an operating channel that is not
allowed for P2P and failing to complete the operation to start the
group.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The only_new_results=1 scan parameter was previously set on other scan
cases, but not on the two P2P specific scan triggers. Set this also for
those P2P cases to get consistent behavior after BSS_FLUSH.
This was showing up with number of hwsim P2P test cases maintaining
unexpected scan results from previous test cases due to the flush
operation not really working correctly since the cfg80211 BSS table was
not explicitly cleared.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Extend verify_channel() to return whether IR is allowed on the channel
or not, and make it a global function so it can be used in other files,
too. This makes this function useful for checking not only if a channel
is supported but also if it is allowed for active and passive scan.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Commit 8e84921efe ('P2P: Support driver
preferred freq list for Autonomous GO case') introduced this loop to go
through preferred channel list from the driver. The loop does bounds
checking of the index only after having read a value from the array.
That could in theory read one entry beyond the end of the stack buffer.
Fix this by moving the index variable check to be done before using it
to fetch a value from the array.
This code is used only if wpa_supplicant is build with
CONFIG_DRIVER_NL80211_QCA=y and if the driver supports the vendor
extension (get_pref_freq_list() driver op). In addition, the driver
would need to return more than P2P_MAX_PREF_CHANNELS (= 100) preferred
channels for this to actually be able to read beyond the buffer. No
driver is known to return that many preferred channels, so this does not
seem to be reachable in practice.
Signed-off-by: Amit Purwar <amit.purwar@samsung.com>
Signed-off-by: Mayank Haarit <mayank.h@samsung.com>
Commit 370017d968 ('P2P: Use preferred
frequency list from the local driver') introduced this loop to go
through preferred channel list from the driver. The loop does bounds
checking of the index only after having read a value from the array.
That could in theory read one entry beyond the end of the stack buffer.
Fix this by moving the index variable check to be done before using it
to fetch a value from the array.
This code is used only if wpa_supplicant is build with
CONFIG_DRIVER_NL80211_QCA=y and if the driver supports the vendor
extension (get_pref_freq_list() driver op). In addition, the driver
would need to return more than P2P_MAX_PREF_CHANNELS (= 100) preferred
channels for this to actually be able to read beyond the buffer. No
driver is known to return that many preferred channels, so this does not
seem to be reachable in practice.
Signed-off-by: Amit Purwar <amit.purwar@samsung.com>
Signed-off-by: Mayank Haarit <mayank.h@samsung.com>
This commit enhances the existing implementation of abort scan to also
abort concurrent active vendor scans. This is achieved by passing the
the scan_cookie to the driver interface with the intention to abort
the specific scan request. This scan_cookie is returned from the driver
interface when the scan request is scheduled.
This scan_cookie is 0 if the scan is triggered through the upstream
cfg80211 interface. Thus, the scan_cookie is used to determine whether
to abort the cfg80211 or vendor scan request.
Also, the previous implementation of relying on scan_work/p2p_scan_work
for the active work to trigger the abort scan is enhanced to check for
the started state of either of these work operations. This should also
help to abort the concurrent active scan/p2p-scan operations.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit adds IP address information into GroupStarted event on the
P2P client side like it is sent over the control interface.
Signed-off-by: Nishant Chaprana <n.chaprana@samsung.com>
When starting ASP provisioning with connection capability set to NEW,
don't create the pending P2P interface as a GO interface because
Go negotiation will determine which side will be the GO and it is
possible that eventually this interface will become the client.
In this case, when the P2P client is started it will start scanning
and do other station specific operations while the interface type
is AP.
Instead, use type WPA_IF_P2P_GROUP when creating the interface which
means the interface type will be determined later.
Signed-off-by: Avrahams Stern <avraham.stern@intel.com>
Filter out get_pref_freq_list() (i.e.,
QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST) output in case of
channel negotiation by removing channels that do not allow P2P operation
at all. Previously, only the explicitly disallowed channels were removed
and that could have resulted in selecting an operating channel that is
not allowed for P2P and failing to complete the operation to start the
group.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
When starting a P2P GO, the struct p2p_go_neg_results may use
persistent_group == 2 to indicate use of persistent reconnect. Setting
ssid->p2p_persistent_group based on this did not take into account this
special case and that ended up in D-Bus code trying to encode 2 as a
DBUS_TYPE_BOOLEAN value which results in an assert from the library. Fix
this by setting ssid->p2p_persistent_group to 0 or 1 instead of raw
params->persistent_group value without any filtering.
This is similar to an earlier fix in commit
112fdee738 ('P2P: Fix D-Bus persistent
parameter in group started event') that addressed another code path in
sending out this D-Bus signal.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
wpas_p2p_persistent_group() returns non-zero for persistent groups. This
value happens to be 2 instead of 1 due to the
P2P_GROUP_CAPAB_PERSISTENT_GROUP value. This ended up with D-Bus code
trying to encode 2 as a DBUS_TYPE_BOOLEAN value which results in an
assert from the library. Fix this by modifying
wpas_p2p_persistent_group() to return 0 or 1 instead of 0 or an
arbitrary non-zero.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This allows P2P Listen to be offloaded to device to enhance power
saving.
To start P2P listen offload, from wpa_cli interface, issue the command:
p2p_lo_start <freq> <period> <interval> <count>
To stop P2P listen offload, issue the command:
p2p_lo_stop
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This adds an extra parameter in GroupStarted signal to indicate whether
the created group is Persistent or not. It is similar to the
[PERSISTENT] tag which comes in P2P-GROUP-STARTED over the control
interface.
Signed-off-by: Nishant Chaprana <n.chaprana@samsung.com>
This allows using P2PS config method with or without PIN for connection.
wpa_supplicant should internally handle the default PIN "12345670" and
shall also allow connection irrespective of PIN used in P2P_CONNECT.
For example,
1. P2P_CONNECT 02:2a:fb:22:22:33 p2ps
2. P2P_CONNECT 02:2a:fb:22:22:33 xxxxxxxx p2ps
Where the second one is maintained for backwards compatibility.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
wpa_supplicant was starting P2P group processing for all AP mode
interfaces in CONFIG_P2P=y builds. This is unnecessary and such
operations should be enabled only for actual GO interfaces.
Signed-off-by: Jouni Malinen <j@w1.fi>
When the P2P Device interface is used and an existing interface is used
for P2P GO/Client, the P2P Device configuration was not cloned to the
configuration of the existing interface. Thus, configuration parameters
such as idle_group_time, etc., were not propagated to the P2P GO/Client
interface.
Handle this by copying all configuration parameters of the P2P device
interface to the reused interface, with the following exceptions:
1. Copy the NFC key data only if it was not set in the configuration
file.
2. The WPS string fields are set only if they were not previously set
in the configuration of the destination interface (based on the
assumption that these fields should be identical among all
interfaces).
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Use the p2pdev pointer instead of the parent pointer to comply with the
flows when a dedicated P2P Device interface is used and
p2p_no_group_iface == 1 (in which case the parent of the reused
interface isn't necessary the same as p2pdev).
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Trigger an event when wpa_supplicant accepts an invitation to re-invoke
a persistent group. Previously wpa_supplicant entered group formation
without triggering any specific events and it could confuse clients,
especially when operating with a driver that does not support
concurrency between P2P and infrastructure connection.
Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Fix two problems with storage of 60 GHz P2P persistent groups:
1. pbss flag was not stored in the network block.
2. When recreating the persistent group from storage,
in addition to the missing pbss flag, the pairwise_cipher and
group_cipher were initialized to CCMP which does not work
in 60 GHz since the default in 60 GHz should be GCMP.
Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
This group capability bit was previously added unconditionally which
could result in the P2P Client assuming the functionality is available
even though the GO would always reject the request (not reply to it with
an assigned IP address) during the 4-way handshake.
Fix this by advertising the capability only if the GO configuration
allow IP address assignment to be completed.
Signed-off-by: Jouni Malinen <j@w1.fi>
Make sure wpas_p2p_init_go_params() respects the p2p_ignore_shared_freq
configuration option. Choose currently used frequencies only if this
option is not set, or if there are no unused channels left.
Signed-off-by: Eliad Peller <eliad@wizery.com>
When p2p_find is stopped, send request to the driver
in order to cancel an ongoing scan if there is one.
Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>
When building P2P IE for Probe Request frames in P2P scan, add the
device information attribute if the 60 GHz band is included in the scan,
since this is required by the P2P specification.
Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
When setting up parameters for P2P scan, calculate the frequencies
for the scan before calculating the scan IE. This is because
the scan IE calculation may need information about the scan
frequencies in use.
Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Add support for drivers with dedicated P2P_DEVICE interface, but without
group interface concurrency (only a single netdev is used). With such
devices, wpa_supplicant tried to use the p2p_dev interface instead of
the group interface and most P2P operations failed. Extend
wpa_supplicant to use the primary interface instead of a separate group
interface in such cases.
Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
In many places in the code there was a reference to wpa_s->parent to get
from group interface to p2p_dev interface. These places can break if
P2P_DEVICE interface would need to be used with the primary interface as
the group interface, since the parent of the primary interface points to
itself and not the p2p_dev interface.
Fix this by adding a separate "p2pdev" pointer to wpa_supplicant,
it will be the same as parent pointer in most cases but whenever
the primary interface is used as a group interface, change it to
point to the correct p2p_dev interface.
Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Add definitions for global operating classes. These definitions will be
used to construct supported operating classes information element.
The operating classes definitions used locally for P2P module will be
removed and included in the general operating classes definitions.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Remove the fallback dependency on os_random() when generating a WPS pin.
This is exceptionally unlikely to ever be called as the call to
os_get_random() is unlikely to fail. The intention is to facilitate
future removal of os_random() as it uses a low quality PRNG.
Signed-off-by: Nick Lowe <nick.lowe@lugatech.com>
PBSS (Personal Basic Service Set) is a new BSS type for DMG
networks. It is similar to infrastructure BSS, having an AP-like
entity called PCP (PBSS Control Point), but it has few differences.
PBSS support is mandatory for IEEE 802.11ad devices.
Add a new "pbss" argument to network block. The argument is used
in the following scenarios:
1. When network has mode=2 (AP), when pbss flag is set will start
as a PCP instead of an AP.
2. When network has mode=0 (station), when pbss flag is set will
connect to PCP instead of AP.
The function wpa_scan_res_match() was modified to match BSS according to
the pbss flag in the network block (wpa_ssid structure). When pbss flag
is set it will match only PCPs, and when it is clear it will match only
APs.
Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Previously it was possible for the pending Action frame TX to be
cleared, but the offchannel TX operation being left in wait state in the
kernel. This would delay start of the next operation (e.g., that listen
operation requested by P2P_LISTEN) until the wait time for the
previously pending Action frame had expired.
Optimize this by explicitly stopping any pending offchannel Action frame
TX when clearing the internal offchannel TX state in
wpas_p2p_clear_pending_action_tx().
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
At least one of the wpas_p2p_connect() callers (NFC join case) already
had access to the Group SSID. Pass that information through
wpas_p2p_connect() to wpas_p2p_join() so that the join operation can
filter out incorrect groups more easily.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Accept only a BSS entry matching the SSID when trying to find the
operating channel of a GO during join operation for which the SSID was
already specified. Previously, it could have been possible to pick an
incorrect BSS entry if the new GO was not found in the latest scan and
there was an older cached scan entry for the same BSSID.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It was already possible to limit join operation to accept only a
specific SSID. However, this constraint was not used when starting a P2P
Client interface as a WPS Enrollee without going through a Provision
Discovery exchange.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Use wpa_bss_get() with the specific Group SSID instead of
wpa_bss_get_bssid_latest() if the SSID is already known. This makes the
P2P join operations more robust in case the frequency of the group was
not yet known and the same P2P Interface Address may have been used in
multiple group instances with an older group entry still present in the
cached scan results.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This allows the cases where a specific group SSID is known to filter out
groups on the P2P Client even if the specific BSS entry for the target
group is not yet available.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The new optional group_ssid=<hexdump> argument in the P2PS-PROV-DONE
event can be used to help in identifying the exact group if there have
been multiple groups with the same P2P Interface Address in short period
of time.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Commit f8a80e39b3 ('P2PS: Change
connection capability handling') added the identical P2PS_SETUP_CLIENT
check into two places within p2ps_group_capability(). However, only the
first one of these can be reached. In the second case, role can only
have values 0 or P2PS_SETUP_NEW and as such, the P2PS_SETUP_CLIENT case
is not possible. It looks like the first part of the commit is
sufficient, so remove the dead code added by the second part.
Signed-off-by: Jouni Malinen <j@w1.fi>
Fix wpas_p2p_invite() to call p2p_set_own_pref_freq_list() after the
NULL check, to avoid NULL pointer dereference if P2P initialization were
to have failed or P2P module getting deinitialized.
Signed-off-by: Ayala Beker <ayala.beker@intel.com>
This was already working for the case where a separate group interface
is used due to the recent commit
328f49acfe ('P2P: Complete group formation
on client data connection'). However, the case of no separate group
interface was used did not clear the interface state properly on data
connection. Fix this by setting the group formation information in
wpas_start_p2p_client().
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Commit f05cee9714 ('P2P: Clear
p2p_in_invitation on cancel') added a wpas_p2p_cancel() case to call
wpas_p2p_group_formation_failed() if wpa_s->p2p_in_invitation is set.
This is done in a loop going through wpa_s->next pointers. However, the
call here can result in removing the interface and freeing wpa_s. The
following attempt to read wpa_s->next is from freed memory and that can
result in process termination when using a separate P2P group interface
and issuing P2P_CANCEL on a group that was started through re-invocation
of a persistent group.
The recent commit 328f49acfe ('P2P:
Complete group formation on client data connection') "fixed" this by
accident since wpa_s->p2p_in_invitation gets cleared in the sequence
that could hit this issue and this results in P2P_CANCEL getting
rejected. However, the real bug here is in the loop that continues after
possible wpa_s instance deletion. Fix that by breaking out of the loop.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This was already the case in the GO role where the first client
connection is waited before marking
wpa_s->p2p_go_group_formation_completed = 1 and clearing
wpa_s->global->p2p_group_formation. However, in the P2P Client role,
that was done already at the completion of the WPS exchange. This can be
problematic since group formation timeout may still try to clear the
group and with wpa_s->global->p2p_group_formation == NULL, the correct
group interface may not be found.
Fix this by postponing clearing of wpa_s->global->p2p_group_formation on
the P2P Client side until the data connection has been completed and
group is declared started.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
A hwsim test sequence was able to hit a SIGSEGV in
p2p_go_save_group_common_freqs() called by p2p_go_configured() callback
in a case where a non-P2P AP mode operation is started in wpa_supplicant
(wpas_ap_wep test case). This callback should not have happened for
non-P2P case and the debug logs did not make it clear how this could
happen. In addition, it is unclear how this could be reproduced.
To avoid this type of issues, clear the wpa_s->ap_configured_cb pointer
as soon as the first call to the function happens. In addition, verify
that wpa_s->go_params is available before processing the GO configured
callback.
Signed-off-by: Jouni Malinen <j@w1.fi>
The new max_oper_chwidth and freq2 arguments to P2P_CONNECT, P2P_INVITE,
and P2P_GROUP_ADD control interface commands can be used to request
larger VHT operating channel bandwidth to be used than the previously
used maximum 80 MHz.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This extends the previous design that covered only the VHT 80 MHz cases
for VHT channel flags. New functions are introduced to allow 160 MHz
bandwidth cases to determine the center channel and check availability
of a 160 MHz channel.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This adds definitions for the global operating classes 129 and 130 for
VHT 80+80 MHz and 160 MHz use cases.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
When an invitation to join an existing group is accepted by the
peer device, set p2p_go_wait_client to the current time so
that wpas_p2p_in_progress() would return != 0, thus preventing
P2P CSA, scanning etc., that would interfere with the peer
device connection.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
When clearing pending TX action to start a new P2P operation like
P2P_FIND or P2P_LISTEN, wpas_p2p_action_tx_clear() was used to clear
the send action work. However, in cases where the action work has wait
time, it is not cleared immediately but only after the wait time ends.
This may cause delay in starting the P2P operation.
Fix that by always clearing the send action work immediately on these
P2P commands that result in immediate P2P state change and practically
stopping a previous operation, if one was pending.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
This makes it easier to analyze debug logs for issues related to
multiple pending Action TX frames.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
When one peer doesn't include a persistent group info in PD Request
the other peer shouldn't report a persistent group usage with this
peer even if such a persistent group exists locally. This condition
could be violated in the previous implementation.
In case a local persistent group exists and the
wpas_p2ps_prov_complete() function is called with persist_ssid parameter
set to NULL, wpa_supplicant reported P2PS-PROV-DONE with persist=<idx>
instead of conncap=<role> parameter.
This happened because the wpas_p2p_get_persistent() function was called
without verification whether the persist_ssid was set to NULL. In this
case the wpas_p2p_get_persistent() returns the first existing persistent
group matching the P2P Device Address without verifying the group's
SSID. After that the group ID is used as persist=<idx> parameter of
P2PS-PROV-DONE event.
Fix the issue by adding persist_ssid and persist_ssid_size verification
as a condition for the wpas_p2p_get_persistent() call.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
On successful P2P PD, report the chosen frequency in case the local
device is going to be the P2P GO, so in can later be used to instantiate
the new P2P GO, etc.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Add operating channel selection and channel list processing similar to
that done when building GO Negotiation Request, i.e., consider the
currently used channels, configured channels, etc.
P2PS introduces a flow where a responder needs to provide channel data
without being previously aware of the current constraints, i.e., the
channels currently in use by other interfaces. To handle this, extend
the get_group_capability() callback to also handle channel selection
aspects of group capabilities.
In case there is an active P2P GO that is going to be used for the P2PS
PD, force its current operating frequency in the PD attributes.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Change the connection capability handling so that in case there are no
active roles, the peer has an active GO, and the advertisement supports
operation as a client, the returned connection capability is set to
client.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
The code was iterating all the interfaces, and for each interface
iterated all the network blocks to count active P2P GO and P2P Client
interfaces.
Change the code to reuse wpas_p2p_get_go_group() to get a P2P GO
interface and add wpas_p2p_get_cli_group() and use it to find a
P2P Client interface, and use these objects when evaluating the
group capability.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Re-factor wpas_p2p_get_go_group() to:
1. Skip the dedicated P2P Device management interface if it is used.
2. Instead of iterating all the interface configured networks,
only access the current_ssid pointer to check if the current
interface is acting as a persistent P2P GO.
To avoid code duplication, also re-factor wpas_p2p_group_go_ssid()
to call wpas_p2p_get_go_group().
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
The CSA channel and operating class values need to be set for all types
of channel switch (i.e., either if it's triggered by the control
interfaces or due to the GO-follows-STA flow). To do so, move the code
that sets them from the GO-follows-STA flow to the more generic
hostapd_fill_csa_settings() function.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Add new GO frequency move policy. The P2P_GO_FREQ_MOVE_SCM_ECSA prefers
SCM if all the clients advertise eCSA support and the candidate
frequency is one of the group common frequencies.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Do not consider moving GOs to a new channel if one of them is in the
middle of CSA. In addition, call wpas_p2p_update_channel_list() after
EVENT_CH_SWITCH is handled.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
wpas_p2p_move_go_csa() uses wpas_p2p_init_p2p_params() to select the
frequency to move to. However, it is possible that all the channels are
already used, so the selection of a new frequency would fail, although
the frequency used by the P2P GO should not be considered as used if it
is the only one using it.
To overcome this, allow the frequency selection to continue even if all
the frequencies are in use, but the frequency used by the P2P GO is not
used by any station interface.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
