This fixes a corner case where a STA that has PMKSA cache entry (or
valid FT keys) could try to use full EAPOL/EAP authentication and fail.
If the STA will then try to use the still valid PMKSA cache entry (or
FT) before the STA entry has been cleared, authFail could have been left
to TRUE. That will make EAPOL authenticator PAE state machine enter HELD
state even though authSuccess was already forced to TRUE. This results
in the STA getting disconnected even though it should be allowed to
continue with 4-way handshake. While this is unlikely to happen in
practice, it is better to get this fixed by clearing authFail when
setting authSuccess.
Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
The TX status event may be received after a stations has been
disassociated in cases where the disassociation is following a
transmission of a Data frame. Ignore such events if the STA is not
associated at the moment the event is being processed. This avoids
confusing debug entries and rescheduling of the EAPOL TX timeouts for
STAs that are still in the STA table, but are not really in active EAPOL
session.
Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
While the exponential increase in the lockout period provides an
efficient mitigation mechanism against brute force attacks, this
additional trigger to enter indefinite lockout period (cleared by
restarting hostapd) will limit attacks even further by giving maximum of
10 attempts (without authorized user action) even in a very long term
attack.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When there is not enough entropy and there are two station associating
at the same time, one of the stations will be rejected, but during
that rejection, the "reject_4way_hs_for_entropy" flag gets cleared. This
may allow the second station to avoid rejection and complete a 4-Way
Handshake with a GTK that will be cleared as soon as more entropy is
available and another station connects.
This reworks the logic to ban all 4-way handshakes until enough entropy
is available.
Signed-hostap: Nicolas Cavallari <cavallar@lri.fr>
Number of places in hostapd use ap_sta_disconnect() instead of
ap_sta_disassociate() or ap_sta_deauthenticate(). There are some
differences between these functions, e.g., in the area how quickly
the EAPOL state machines get deinitialized. This can result in
somewhat unexpected events since the EAPOL/WPA authenticator
state machines could remain running after deauthentication.
Address this by forcing EAPOL/WPA authenticator state machines
to disabled state whenever ap_sta_disconnect() is called instead
of waiting for the deauthentication callback or other timeout
to clear the STA.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Some deployed station implementations seem to send msg 4/4 with
incorrect type value in WPA2 mode. Add a workaround to ignore that issue
so that such stations can interoperate with hostapd authenticator. The
validation checks were added in commit
f8e96eb6fd.
Signed-hostap: Jouni Malinen <j@w1.fi>
The Device ID attribute was already used in Listen state, but it was
ignored in GO role. Verify that there is a match with Device ID in
GO rule, too, before replying to the Probe Request frame.
Signed-hostap: Jouni Malinen <j@w1.fi>
Some supplicant implementations (e.g., Windows XP WZC) update SNonce for
each EAPOL-Key 2/4. This breaks the workaround on accepting any of the
pending requests, so allow the SNonce to be updated even if we have
already sent out EAPOL-Key 3/4.
While the issue was made less likely to occur when the retransmit
timeout for the initial EAPOL-Key msg 1/4 was increased to 1000 ms,
this fixes the problem even if that timeout is not long enough.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Now that we can use driver_nl80211.c with non-mac80211 drivers that
implement SME/MLME internally, we may not get inactivity time from the
driver. If that is the case, we need to skip disconnection based on
maximum inactivity timeout. This fixes some unexpected disconnection
cases with ath6kl in AP mode.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
hostapd uses the poll method to check if the station is alive
after the station has been inactive for ap_max_inactivity seconds.
Make the poll mechanism configurable so that user can choose to
disconnect idle clients.
This can be especially useful when some devices/firmwares have
restrictions on the number of clients that can connect to the AP
and that limit is smaller than the total number of stations trying
to use the AP.
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
The 100 ms timeout on retransmitting group key message can be too short
for stations that are in power save mode or if there is a large number
of association stations. While the retransmission of the EAPOL-Key frame
should allow this to be recovered from, it is useful to avoid
unnecessary frames to save soem CPU and power.
Signed-hostap: Jouni Malinen <j@w1.fi>
Add a new persistent group network block field, p2p_client_list, to
maintain a list of P2P Clients that have connected to a persistent
group. This allows GO of a persistent group to figure out more easily
whether re-invocation of a persistent group can be used with a specific
peer device.
Signed-hostap: Jouni Malinen <j@w1.fi>
This event can be very frequent in AP mode when Beacon frames from
neighboring BSSes are delivered to user space. Drop the debug
message priority from DEBUG to EXCESSIVE for Beacon frames.
Signed-hostap: Jouni Malinen <j@w1.fi>
Return 1/0 instead 0/-1 to indicate valid/invalid element so that
the if statement makes more sense with !wmm_valid().
Signed-hostap: Jouni Malinen <j@w1.fi>
This updates a previous patch did more or less the same thing by
providing the qosinfo as a single variable to the driver wrappers.
Signed-hostap: Jason Young <jason.young@dspg.com>
Add uapsd_queues and max_sp fields to sta_info struct,
and pass them to the sta_add callback.
These values are determined by the WMM IE in the (Re)Association Request.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Check whether the driver advertises support for U-APSD
in AP mode, and evaluate wmm_uapsd only in this case.
Signed-off-by: Eliad Peller <eliad@wizery.com>
This allows per-device PSK to be configured for WPA-Personal using a
RADIUS authentication server. This uses RADIUS-based MAC address ACL
(macaddr_acl=2), i.e., Access-Request uses the MAC address of the
station as the User-Name and User-Password. The WPA passphrase is
returned in Tunnel-Password attribute in Access-Accept. This
functionality can be enabled with the new hostapd.conf parameter,
wpa_psk_radius.
Signed-hostap: Michael Braun <michael-dev@fami-braun.de>
Configure a Probe Response template for drivers that support it. The
template is updated when the Beacon template is updated.
The Probe Response template is propagated to the driver via the set_ap()
callback.
Signed-hostap: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
This is needed for Probe Response template, so move the code into a
separate function that can be shared.
Signed-hostap: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
This previously helped when debugging some auth issues when hitting the
AP with 128 association attempts all at once.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Append "p2p_dev_addr" parameter to AP-STA-DISCONNECTED event for P2P
connections. In addition, for AP-STA-CONNECTED event during P2P
connection, the "dev_addr=" print is replaced with "p2p_dev_addr=" to
be more consistent with other events.
Signed-hostap: Jithu Jance <jithu@broadcom.com>
Testing code can now be enabled in the hostapd RADIUS server to dump
each derived MSK into a text file (e.g., to be used as an input to
wlantest). This functionality is not included in the default build
and can be enabled by adding the following line to hostapd/.config:
CFLAGS += -DCONFIG_RADIUS_TEST
The MSK dump file is specified with dump_msk_file parameter in
hostapd.conf (path to the dump file). If this variable is not set,
MSK dump mechanism is not enabled at run time.
Signed-hostap: Jouni Malinen <j@w1.fi>
Commit 34445d12ee forgot to convert
the hostapd_prepare_rates() inline wrapper for builds that do not
define NEED_AP_MLME.
Signed-hostap: Jouni Malinen <j@w1.fi>
P2P invitation responses are transmitted with the BSSID set to the peer
address. Pass these action frames up to allow the GO to receive the
Invitation Response (and avoid sending the Invitation Request multiple
times).
Signed-off-by: Arik Nemtsov <arik@wizery.com>
A new hostapd.conf parameter, wps_rf_bands, can now be used to fix the
RF Bands value in cases where hw_mode is not set or when operating a
dual band dual concurrent AP.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When hostapd controls multiple radios, WPS operations are started on
all interfaces. However, when the provisioning run had been completed
successfully, actiove WPS mode was stopped only a single interface. Fix
this to iterate through all interfaces so that this is handled
consistently with the starting of WPS operation.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Commit 628d54639a introduced number
of new WPS related ctrl_iface messages to hostapd. Some of these
were for ER events which do not make any sense to hostapd that
cannot operate as an ER. The WPS_EV_ER_SET_SELECTED_REGISTRAR one
from wps_registrar_sel_registrar_changed_event() was especially
problematic since it can cause wpa_supplicant ER code segfault due
to missing event data.
Revert all the ER specific changes from commit
628d54639a to get rid of the segfault
and undesired extra code in hostapd.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Send the connection events from P2P group to both the group interface
and parent interface ctrl_ifaces to make it easier for external monitor
programs to see these events without having to listen to all group
interfaces when virtual group interfaces are used.
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
This cleans up the source code and makes it less likely that new AKM
addition misses some needed changes in the future.
Signed-hostap: Jouni Malinen <j@w1.fi>
If the station is indicating use of WPS, WSC IE should be added into the
(Re)Association Response frame. This is clear for the case when WSC IE
was included in the (Re)Association Request frame. However, even the
WLAN_STA_MAYBE_WPS case may actually indicate use of WPS. Assume that to
be the case when WPA/WPA2 is enabled (i.e., when the STA does not
include WPA/RSN/WSC IE while AP has WPA/RSN enabled).
Signed-hostap: Jouni Malinen <j@w1.fi>
Commit 940a0ce970 moved the STA associated
check from driver_*.c into ieee802_1x_receive(), but failed to take into
account that wired networks and driver_wired.c do not mark the STA entry
associated. Fix this by skipping the check if the driver wrapper is
using a wired network.
Signed-hostap: Jouni Malinen <j@w1.fi>
Some client implementations only wait a few ms after sending a probe
request while scanning. Since probe responses are always sent at a low
rate this can eat quite some airtime and it might be impossible to get
the frame out before the client leaves the channel again. If the client
leaves before all probe reponses where acked this can cause the probe
reponse to be retried quite often consuming even more airtime.
Hence, add a new noack flag to the driver's send_mlme callback that
allows hostapd to request whether the driver should expect an ACK for
this frame or not.
Use the new noack-policy only for broadcast probe requests that contain
a wildcard SSID.
Signed-hostap: Helmut Schaa <helmut.schaa@googlemail.com>
In some situations it might be benefical to send a unicast frame without
the need for getting it ACKed (probe responses for example). In order to
achieve this add a new noack parameter to the drivers send_mlme callback
that can be used to advise the driver to not wait for an ACK for this
frame.
Signed-hostap: Helmut Schaa <helmut.schaa@googlemail.com>
The new event can be used when EAPOL TX status can't be reported as a
complete 802.11 frame but is instead reported as just the EAPOL data as
originally passed to hapd_send_eapol().
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
This is a workaround for Windows 7 supplicant rejecting WPA msg 3/4
in case it used Secure=1 in msg 2/4. This can happen, e.g., when
rekeying PTK after EAPOL-Key Error Request (Michael MIC failure)
from the supplicant.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This cleans up the code a bit by not having to deal with theoretical
possibility of maximum number of EAP methods to be different between
various components in hostapd.
Signed-hostap: Jouni Malinen <j@w1.fi>
Commit c2ff13c533 broke this with a
copy-paste typo that ended up adding the Probe Request P2P IE into the
Beacon frame (i.e., Beacon frame had two P2P IEs while Probe Response
had none).
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
hapd->time_adv cannot really be NULL if hostapd_update_time_adv()
returns success, but this construction seems to be too difficult
for some static analyzers. While this change is not really needed
in practice, it makes it easier to go through warnings from such
analyzers.
Signed-hostap: Jouni Malinen <j@w1.fi>
Instead of trying to remember to add wpa_msg() calls for every possible
path where a STA becomes authorized or unauthorized, use
ap_sta_set_authorized() to send these events more consistently.
Signed-hostap: Jouni Malinen <j@w1.fi>
wpa_msg() has to use hapd->msg_ctx instead of hapd as the context
pointer to work properly in wpa_supplicant AP mode.
Signed-hostap: Jouni Malinen <j@w1.fi>
Currently, there is no events over the control interface
when a AP disconnects a station due to inactivity. With
this patch, an "AP-STA-DISCONNECTED" event will be sent.
Signed-hostap: Nicolas Cavallari <nicolas.cavallari@lri.fr>
The GTK is renewed in the hostapd after a MIC attack dissassociation
without informing the driver, causing decryption failures. This patch
sends the new GTK/IGTK to the driver after it is updated by the hostapd.
Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com>
Some stations have been reported to send EAPOL-Key Error Reports
indicating Michael MIC failures even when the cipher is not TKIP
(e.g., when the network is using only CCMP). Ignore such reports
to avoid starting TKIP countermeasures unnecessarily. This can
prevent certaint types of denial of service attacks by insiders,
but mostly this is to work around invalid station implementations.
Signed-hostap: Jouni Malinen <j@w1.fi>
The eloop timeout to stop TKIP countermeasures has to be canceled
on deinit path to avoid leaving bogus timeouts behind.
Signed-hostap: Jouni Malinen <j@w1.fi>
This was included in the AP configuration parameters, but there has
been no way to set it to anything else than the default automatic
mode. Remove this parameter and just hardcode ERP determination to
follow the automatic mode.
hostapd_wpa_auth_conf() is called on uninitialized memory and the
conditional blocks in this function may leave some fields into
uninitialized state. This can result in unexpected behavior elsewhere
since some of the variables may be used without matching #ifdef
blocks. Fix this by zeroing the memory.
The Query Response Length Limit is not allowed to be zero when
this is sent by the AP. Use 0x7F to indicate that the limit is
based on maximum number of GAS fragments.
For P2P, the p2p_connect takes in device address argument to make a
connection. However the connected event AP-STA-CONNECTED comes with
interface address. The application listening on events would find it
difficult to map interface address to the p2p device address which is
provided for connection.
Append P2P Device Address to AP-STA-CONNECTED event for P2P Client
connection. This will help applications to easily map the P2P Interface
Address to P2P Device Address on CONNECTED event. For non-P2P case, it
will just print the usual STA MAC address alone.
Signed-off-by: Jithu Jance <jithu@broadcom.com>
This offloads the station polling to driver wrappers, which may offload
it again to the driver. The hostap driver wrapper uses "real" data
frames while nl80211 uses null data frames.
Also add a specific event to indicate that a poll was successful for
future use with the nl80211 driver.
Remove the separate driver_ops functions set_cts_protect(),
set_preamble(), set_short_slot_time(), and set_ht_params(). These
belong into same set of operations as set_ap(), so there is no need
to maintain separate functions that just make the driver wrapper
more complex.
Since these have only been used with driver_nl80211.c, the driver_ops
can be removed immediately instead of maintaining backwards
compatibility period with the old functions.
The AP client isolation parameter is now available through set_ap().
driver_nl80211.c was the only driver wrapper using the set_intra_bss()
call in hostap.git, but some external trees may have used this. Once
those are cleared, the set_infra_bss() driver_ops can be removed
completely. The only remaining use case for it currently is in P2P
GO mode with wpa_supplicant.
AP mode operations were used for P2P device discovery Listen state
only during early experiments. This has now been cleaned up and
ieee802_11_set_beacon() is not called for P2P device discovery.
As such, this hack to skip Beacon configuration can be removed.
This is the first step in allowing SA Query mechanism in hostapd to be
used with drivers that implement authentication and association MLME/SME
(i.e., do not use ieee802_11.c).
Commit 17f6b90056 moved the concatenation
of WPS IEs, but did not include the validation that the IE buffer is not
NULL. In addition, the concatenation needs to be done based on the full
IE buffer instead of the parsed pointer that includes only a single
WPS IE.
Data path for stations that get successfully associated to the
hostapd but fail to get added in the driver/firmware, will not
work. In such cases, hostapd should deauth and disconnect such
stations. In such scenario, hostapd should disconnect the STAs.
Sample output with following patch
wlan0: STA 0c:74:c2:9a:4c:59 IEEE 802.11: authenticated
wlan0: STA 0c:74:c2:9a:4c:59 IEEE 802.11: associated (aid 1)
wlan0: AP-STA-CONNECTED 0c:74:c2:9a:4c:59
wlan0: STA 0c:74:c2:9a:4c:59 IEEE 802.11: Could not add STA to kernel driver
wlan0: STA 0c:74:c2:9a:4c:59 IEEE 802.11: deauthenticated due to local deauth request
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
The password_hash parameter was not copied in case of the integrated
authentication server (but was for RADIUS server). This broke EAP
authentication when the user entry used NT-hash.
The EAPOL authenticator was previously forcing disconnection in the WPS
use case. However, this can be benefitial operation with any IEEE 802.1X
authentication mechanism and need not be limited to WPS. This helps some
use cases like EAP-FAST where provisioning may require two
authentication runs if the authentication server does not allow the PAC
provisioning step to be used for normal data connection. While the
station would be free to decide to re-associate in such a case, not all
stations do and as such, it helps if the AP does that instead of leaving
the association up with EAPOL state machine in HELD state for 60
seconds.
When polling a station that has been inactive for a while, hostapd currently
always uses a null data frame. This is a bit strange with uAPSD clients
(though it seems to mostly work) since the EOSP bit can never be set in a
non-QoS frame. Make hostapd use QoS null data frames for probing when the
station is a QoS STA.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Wrap self-generated WPS credential for new AP settings and send that to
control interface to provide the needed information in
WPS-NEW-AP-SETTINGS for external processing.
