This adds experimental support for wpa_supplicant to assign random local
MAC addresses for both pre-association cases (scan, GAS/ANQP) and for
connections. MAC address policy for each part can be controlled
separately and the connection part can be set per network block.
This requires support from the driver to allow local MAC address to be
changed if random address policy is enabled. It should also be noted
that number of drivers would not support concurrent operations (e.g.,
P2P and station association) with random addresses in use for one or
both.
This functionality can be controlled with the global configuration
parameters mac_addr and preassoc_mac_addr which set the default MAC
address policies for connections and pre-association operations (scan
and GAS/ANQP while not connected). The global rand_addr_lifetime
parameter can be used to set the lifetime of a random MAC address in
seconds (default: 60 seconds). This is used to avoid unnecessarily
frequent MAC address changes since those are likely to result in driver
clearing most of its state. It should be noted that the random MAC
address does not expire during an ESS connection, i.e., this lifetime is
only for the case where the device is disconnected.
The mac_addr parameter can also be set in the network blocks to define
different behavior per network. For example, the global mac_addr=1 and
preassoc_mac_addr=1 settings and mac_addr=0 in a home network profile
would result in behavior where all scanning is performed using a random
MAC address while connections to new networks (e.g.,
Interworking/Hotspot 2.0) would use random address and connections to
the home network would use the permanent MAC address.
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, the shorter startWhen value was used based on build
parameters (i.e., if WPS was enabled). This is not really ideal and the
knowledge of WPS use can be provided to the EAPOL state machine to allow
this (and similar WPS workarounds) to be done only when the association
is for the purpose of WPS.
Reduce the default startWhen value from 3 to 2 seconds for non-WPS case
since WPS builds have likely received most testing for the past years
with the 1 second value and there is no strong justification for forcing
the longer 3 second wait should a frame be lost or something else
require the EAPOL-Start to initiate operation after a connection.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This adds following new control interface commands to allow arbitrary
vendor elements to be added into number of frames:
VENDOR_ELEM_ADD <frame id> <hexdump of elem(s)>
VENDOR_ELEM_GET <frame id>
VENDOR_ELEM_REMOVE <frame id> <hexdump of elem(s)>
VENDOR_ELEM_REMOVE <frame id> *
The following frames are supported in this commit (additional frames can
be added in the future):
0 = Probe Request frame in P2P device discovery
1 = Probe Response frame from P2P Device role
2 = Probe Response frame from P2P GO
3 = Beacon frame from P2P GO
4 = PD Req
5 = PD Resp
6 = GO Neg Req
7 = GO Neg Resp
8 = GO Neg Conf
9 = Invitation Request
10 = Invitation Response
11 = P2P Association Request
12 = P2P Association Response
One or more vendor element can be added/removed with the commands. The
hexdump of the element(s) needs to contain the full element (id, len,
payload) and the buffer needs to pass IE parsing requirements to be
accepted.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Use an explicit memset call to clear any wpa_supplicant configuration
parameter that contains private information like keys or identity. This
brings in an additional layer of protection by reducing the length of
time this type of private data is kept in memory.
Signed-off-by: Jouni Malinen <j@w1.fi>
While the buffer is expected to be large enough for all the IEs, it is
better to check for this explicitly when adding the HS 2.0 Indication
element. (CID 68601)
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>
Remove the seperation between getting the local interface frequency and
other interfaces frequencies since going over all the radio interfaces
includes the local interface.
Signed-off-by: Avraham Stern <avraham.stern@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>
Remove the check for get_radio_name support from
get_shared_radio_freqs_data() since get_radio_name is no longer in use
in this function.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
The OSEN code path hardcodes number of struct wpa_ie_data items.
However, it did not clear the full structure and some uninitialized
fields could have been used (e.g., ie.mgmt_group_cipher for a debug
print and ie.capabilities for checking MFPC). Fix this by clearing the
ie data before filling in the hardcoded OSEN values.
Signed-off-by: Jouni Malinen <j@w1.fi>
Prepare for new extended capabilities bits by checking that the local
buffer is large enough to contain all the bits the driver requests. The
existing buffers are large enough to include anything defined until now,
but it would be possible to add more definitions in the future, so
increase them a bit as well to make this more future proof.
Signed-off-by: Jouni Malinen <j@w1.fi>
When there is a pending WPS negotiation for P2P and signal interrupt is
triggered, invalid read occurs in wpas_wps_terminate_pending() if
wpas_p2p_disconnect() removed the interface. Inverting deinit order
solves the issue.
Signed-off-by: Eduardo Abinader <eduardo.abinader@openbossa.org>
Add a new wowlan_triggers option to wpa_supplicant.conf. The triggers in
this key will be used to configure the kernel wowlan configuration.
For now, support only simple flags. More complex triggers can be added
later on.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Previously, the frequency conflict was handled only during the
association flow. However, some drivers, e.g., mac80211 based
drivers, will fail an authentication request in case that there
are no available channels for use (as they might be used by
other interfaces), and thus the frequency conflict resolution
is never called.
Fix this by calling frequency conflict resolution during
authentication (SME-in-wpa_supplicant) as well.
In addition, get the shared radio frequency from the wpa_s context in
both the SME-in-driver and SME-in-wpa_supplicant cases and not from the
driver.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
The normal scan counter is used to trigger a few normal scans before a
scheduled scan is issued. The reason for doing this is that we get
results faster and some drivers support more SSIDs per normal scan
than during sched scan. After 2 normal scans, we start using
sched_scan. But the problem is that when a connection succeeds, we do
not reset this counter, so we will keep using sched scans.
To fix this, now we reset the counter when we switch to WPA_COMPLETED
state.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Previously, it was possible to remove the main interface and leave
behind dynamic P2P group interfaces. This would eventually result in
references freed memory, so it is not really suitable behavior. Instesd,
remove all the dynamic P2P group interfaces that were created through an
interface that is now removed.
Signed-off-by: Jouni Malinen <j@w1.fi>
This used to work, but it looks like the disabled-PSK-network check
ended up rejecting confiurations that configured a wildcard SSID with a
passphrase (instead of PSK).
Signed-off-by: Jouni Malinen <j@w1.fi>
According to the standard, if the max A-MPDU VHT cap is <= 3, we
have to adjust the max A-MPDU HT cap to the same value. Otherwise
it should be set to 3.
Take care of it when the max VHT A-MPDU value is overridden.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
This allows hostapd to set a different management group cipher than the
previously hardcoded default BIP (AES-128-CMAC). The new configuration
file parameter group_mgmt_cipher can be set to BIP-GMAC-128,
BIP-GMAC-256, or BIP-CMAC-256 to select one of the ciphers defined in
IEEE Std 802.11ac-2013.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
A previous patch "Support VHT capability overrides" missed one
place where HT overrides were being applied and where it would
also be useful to apply VHT overrides.
Signed-hostap: Paul Stewart <pstew@chromium.org>
This makes stations associate much faster when using lots of stations.
In addition, this avoids delaying the initial scan continuously for
dynamic interface removal/addition cases.
Signed-hostap: Ben Greear <greearb@candelatech.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_supplicant already allowed beacon interval to be configured for AP
mode operations, but this was not passed to the driver for IBSS even
though the same parameter can used for that case. Add this for the
nl80211 driver interface to allow beacon interval to be controlled for
IBSS as well.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
wpa_supplicant started delayed sched scan also on P2P Device interfaces,
resulting in erroneous scans and connection attempts. Skip that on
driver init when the interface is dedicated only for P2P management
purposes.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
As a P2P group has a unique SSID and one security domain, it does
not make sense to enable background scanning for roaming purposes.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Do not initialize bgscan if the user explicitly set bgscan to an empty
string. Without this patch wpa_supplicant tries to initialize bgscan to
the first option if the string is empty.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
This is needed to limit the number of consecutive authentication
attempts to no more than 10 within a 10-minute interval to avoid
unnecessary load on the authentication server. In addition, use a random
component in the delay to avoid multiple stations hitting the same
timing in case of simultaneous disconnection from the network.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The new wpa_cli fetch_osu command can be used to fetch information about
all OSU providers and write that to a text file with the icons in
separate files. cancel_osu_fetch command can be used to stop ongoing OSU
provider list fetch.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Subscription remediation notification WNM-Notification Request is now
shown in the following way in wpa_supplicant control interface:
<3>HS20-SUBSCRIPTION-REMEDIATION http://example.com/foo/
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The HS 2.0 Indication element from wpa_supplicant now includes the
release number field and wpa_supplicant shows the release number of the
AP in STATUS command (hs20=1 replaced with hs20=<release>).
The new update_identifier field in the cred block can now be used to
configure the PPS MO ID so that wpa_supplicant adds it to the Indication
element in Association Request frames.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
It was possible for the connect or sme-connect radio work to get
re-scheduled while an earlier request was still pending, e.g.,
select_network is issued at the moment a scan radio work is in progress
and the old scan results are recent enough for starting the connection.
This could result in unexpected attempt to re-associate immediately
after completing the first connection.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
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>
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>
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>
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>
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>
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>
