These changes account for situations where the CQM threshold
might be approximately the same as the currently received signal,
and thus CQM events are triggered often due to measurement
error/small fluctuations. This results in scanning occurring
too frequently.
Firstly, inhibit the immediate scan when the short-scan count
is at the maximum. This keeps bursts of CQM toggling from
causing a torrent of back-to-back scans. This does not inhibit
immediate scans if the CQM triggers a second time (if the signal
falls lower past the hysteresis). This reduces the scan rate in
the worst case (fast-rate toggling high/low CQM events) to the
short scan interval.
Secondly, change the behavior of the short scan count so it acts like
a "leaky bucket". As we perform short-scans, the bucket fills until
it reaches a maximal short-scan count, at which we back-off and
revert to a long scan interval. The short scan count decreases by
one (emptying the bucket) every time we complete a long scan interval
without a low-RSSI CQM event.
This reduces the impact of medium-rate toggling of high/low CQM
events, reducing the number of short-interval scans that occur before
returning to a long-interval if the system was recently doing
short scans.
Driver global init was considered a hard failure. Thus if, for example,
you used the Broadcom STA driver and didn't have nl80211 or cfg80211
loaded into the kernel, and specified a driver value of "nl80211,wext",
the nl80211 driver's global init would fail with the following message:
nl80211: 'nl80211' generic netlink not found
Failed to initialize driver 'nl80211'
but since global init was a hard failure, creating the supplicant
interface would fail and the WEXT driver would not be tried.
Give other drivers a chance instead.
Signed-hostap: Dan Williams <dcbw@redhat.com>
intended-for: hostap-1
The setter function uses the same hostapd_data structure as the getter
which causes it to crash if called on a P2P client. To overcome this
issue, the role is checked to ensure it is called on a group owner and
the pointer is examined for validity. The function will return an error
if called on a non-GO system.
Signed-hostap: Todd Previte <toddx.a.previte@intel.com>
Signed-hostap: Angie Chinchilla <angie.v.chinchilla@intel.com>
intended-for: hostap-1
When using DBus to get group properties, a segmentation fault is
generated on P2P clients due to a NULL pointer for the ap_iface struct.
The current implementation only returns vendor extensions when called on
a P2P group owner.
The code now checks the P2P role which allows for role-specific
information to be provided. This also fixes the crash issue by only
looking for the correct structures based on the current P2P role.
Signed-hostap: Todd Previte <toddx.a.previte@intel.com>
Signed-hostap: Angie Chinchilla <angie.v.chinchilla@intel.com>
intended-for: hostap-1
When looking for PMKSA cache entries to use with a new association, only
accept entries created with the same network block that was used to
create the cache entry.
Signed-hostap: Jouni Malinen <j@w1.fi>
The disconnection command results in disassociation and deauthentication
events which were previously processed during the scan in case of
select_network command being used while associated with another network.
While this works in most cases, it can result in confusing event
messages in ctrl_iface and debug log. Avoid this by using a short delay
between the disconnection and scan request to allow the disconnection
events to be processed prior to starting the new scan.
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>
This allows HT capabilities overrides on kernels that
support these features.
MCS Rates can be disabled to force to slower speeds when using HT.
Rates cannot be forced higher.
HT can be disabled, forcing an 802.11a/b/g/n station to act like
an 802.11a/b/g station.
HT40 can be disabled.
MAX A-MSDU can be disabled.
A-MPDU Factor and A-MPDU Density can be modified.
Please note that these are suggestions to the kernel. Only mac80211
drivers will work at all. The A-MPDU Factor can only be decreased and
the A-MPDU Density can only be increased currently.
Signed-hostap: Ben Greear <greearb@candelatech.com>
Now that CTRL-EVENT-TERMINATING even is sent at the end of interface
removal in case wpa_supplicant process is going to terminate, there
is no need for this duplicated event in the signal handler.
Signed-hostap: Jouni Malinen <j@w1.fi>
This allows TERMINATING ctrl_iface event to be sent at the end of the
deinit sequence to avoid race conditions with new operations that this
event may trigger while wpa_supplicant would still be running through
the deinitialization path.
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
This avoids issues with some external program starting to use the
interface based on the interface removal event before wpa_supplicant
has completed deinitialization of the driver interface.
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
This will be needed to be able to move ctrl_iface TERMINATING event to
the end of interface removal.
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
current_bss and pending_bssid weren't cleaned up so BSS
kept appearing in the scan results even when it was actually gone.
Use wpa_supplicant_mark_disassoc() to cleanup the wpa_s context
instead of just dropping wpa_state back to DISCONNECTED.
Reported-by: Vishal Mahaveer <vishalm@ti.com>
Signed-hostap: Eyal Shapira <eyal@wizery.com>
For drivers limited to scan a single SSID at a time, this prevents
waiting too long for a wildcard scan in case there are several
scan_ssid networks in the configuration.
Signed-hostap: Eyal Shapira <eyal@wizery.com>
This changes the install target such that parent directories of
installed paths area created and each path is only installed
on a dependency basis.
Signed-off-by: Grant Erickson <marathon96@gmail.com>
This is a useful function that simplifies some code and can eventually
be used somewhere else in future.
Signed-hostap: Antonio Quartulli <ordex@autistici.org>
These properties did not work on big endian PowerPC (always 100% for
Signal and 0 for Frequency) due to endianness problem (u32 to u16 data
loss).
Signed-off-by: Sylvestre Gallon <ccna.syl@gmail.com>
Perforce does not like @ in the file name and since these template files
do not really need to have that in the name, make the files in
repository friendlier to Perforce. The generated *.service file will
maintain their old names.
Signed-hostap: Jouni Malinen <j@w1.fi>
When the "bssid=" option is set for an IBSS network and ap_scan = 2,
ask the driver to fix this BSSID, if possible.
Previously, any "bssid=" option were ignored in IBSS mode when ap_scan=2.
Signed-hostap: Nicolas Cavallari <cavallar@lri.fr>
Provide a means over DBus to set the conf->fast_reauth
property, which controls whether TLS session resumption
should be attempted for EAP-TLS 802.1X networks.
Signed-off-by: Paul Stewart <pstew@chromium.org>
wpas_wps_in_use() was forcing WPS to be enabled unconditionally if P2P
support was included in the build. This is not really the correct
behavior for the case when P2P has been disabled at runtime. Change the
code here to verify runtime configuration of P2P before forcing WPS to
be enabled. This allows WSC IE to be left out from Probe Request frames
when scanning for APs without P2P or WPS being in use.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Even though we may not update P2P peer entry while connected to the
peer as a P2P client, we should not be expiring a P2P peer entry while
that peer is the GO in a group where we are connected as a P2P client.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When a P2P group is removed, we better not leave possibly started
sched_scan running. This could happen when a separate group interface
was not used.
In addition, it looks safer to explicitly stop sched_scan before
starting P2P Listen or Find operations to make sure the offloaded
scanning is not running when doing similar P2P operations.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This patch fixes an issue with roaming for drivers that set
WPA_DRIVER_FLAGS_BSS_SELECTION (currently ath6kl). On moving to an AP
with a different BSSID, an EVENT_ASSOC is received and the subsequent
4-way handshake may fail because of a mismatch between the RSN IE in
message 3/4 and in Beacon/Probe Response. This happens only when the APs
use different RSN IE contents and ap_scan is set to 1, since
wpa_supplicant fails to update its cached IEs.
Initial association may fail, too, in case of multiple APs with
the same SSID, since BSSID selection is done by the driver and again
a mismatch could be seen.
Fix these two issues by clearing and updating the cached IEs on
receiving an Association event from the driver. Also, retrieve the
scan results when the new BSS information is not present locally.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
dev_id=<P2P Device Addr> can now be specified as an argument to
p2p_find to request P2P find for a specific P2P device.
Signed-hostap: Jouni Malinen <j@w1.fi>
The deauthentication and disassociation events from nl80211 were being
processed identically regardless of whether the frame was generated by
the local STA or the AP. This resulted in fast reconnection mechanism
getting triggered even in the case where the disconnection was detected
locally (e.g., due to beacon loss) while this was supposed to happen
only in the case where the AP is sending an explicit Deauthentication
or Disassociation frame with a specific reason code.
Fix this by adding a new deauth/disassoc event variable to indicate
whether the event was generated locally.
Signed-hostap: Jouni Malinen <j@w1.fi>
Commit e9c3c1afed added a new D-Bus
method and that was enough to push the Introspect XML buffer over
the previously allocated 8000 bytes. Increase the buffer size to
make enough room for P2P interface. In addition, add a debug
message to indicate if an XML segment does not fit into the buffer
to make this types of failures somewhat easier to catch.
Signed-hostap: Jouni Malinen <j@w1.fi>
The authentication timeout could be triggered after the connection has
already been known to have failed. The event at that point can be
confusing, so better cancel the timeout when processing connection
failure.
Signed-hostap: Jouni Malinen <j@w1.fi>
If the BSSID of the AP is specified in the WPS command, the target
AP is likely already in the BSS table and its operating channel is
known. Use this information to speed up connection by only scanning
the known channel.
Signed-hostap: Jouni Malinen <j@w1.fi>
The 'network.target' is special (per systemd.special(7)), and is to be
brought up indirectly when network is actually configured (i.e. through
DHCP or static address settings).
Irrelevant of that, all services should be always installed in
multi-user.target.
[Bug 427]
This fixes issues with drivers that do not handle concurrent
remain-on-channel and scan operations in a case where Provision
Discovery Response frame is not received to stop the Action frame
handshake.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
If the freq parameter is specified and we are already running legacy STA
on a different frequency with a driver that does not support
multi-channel concurrency, reject p2p_group_add. Same code already
exists in the path of P2P connection with go negotiation but is missing
for autonomous GO.
Signed-hostap: Neeraj Garg <neerajkg@broadcom.com>
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>
Add "persistent=<network id>" line to P2P_PEER ctrl_iface data
if a persistent group credentials are available for this peer.
This makes it easier for external programs to figure out when
a persistent group could be re-invoked with this peer.
For now, this information is only available on the P2P client,
but similar information can be added for GO once a list of P2P
clients is maintained with the persistent group data.
Signed-hostap: Jouni Malinen <j@w1.fi>
The P2P module provides access to public peer data in struct
p2p_peer_info. Use this to build the P2P_PEER information in
ctrl_iface.c instead of providing such text format data from the P2P
module.
The internal data that was previously built in p2p_get_peer_info() as
part of the text format peer data is now available through a separate
p2p_get_peer_info_txt() function. This is still included in P2P_PEER
output to maintain backwards compatibility with external programs that
could have started to use this. However, it should be noted that this
data is not really supposed to be used for anything else apart from
debugging purposes and its format is subject to change.
Signed-hostap: Jouni Malinen <j@w1.fi>
p2p_get_peer_info() was used in multiple places just to check whether a
specific peer is known. This was not the designed use for the function,
so introduce a simpler function for that purpose to make it obvious that
the p2p_get_peer_info() function is actually used only in ctrl_iface.c.
Signed-hostap: Jouni Malinen <j@w1.fi>
The internal sched_scanning state needs to be cleared on this event
even if the events happen to get ordered in a way that the interface
gets disabled just prior to EVENT_SCHED_SCAN_STOPPED event.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
If the driver was associated in station mode just before the AP mode was
started, the station mode disassociation event may end up getting
delivered to wpa_supplicant only after the AP mode has been started.
This can result in unexpected attempt to reassociate back to the network
that was previously used in station mode. Avoid this by ignoring the
disassociation event.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The active station connection triggered wpa_supplicant AP mode startup
to try to update Beacon IEs before the AP mode was properly initialized
and that resulted in NULL pointer dereference in driver_nl80211.c. Fix
this by skipping the IE update before the AP mode is initialized.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The p2p_group_idle configuration parameter is much more useful for
GO role, so use a separate hardcoded value of 10 seconds in P2P
client role. In practice, this means that the P2P client role will
automatically tear down the group when the GO tears down the group.
The 10 second timeout is enough to recover from temporary disconnections
without unnecessary tearing down the group if the GO is still present
and allows the client to connect.
Signed-hostap: Jouni Malinen <j@w1.fi>
When P2P client is processing a disconnection event, make sure the P2P
idle timeout does not get increased, i.e., set a new timeout only if no
timeout is in use. wpa_state changes between DISCONNECTED and SCANNING
can generate multiple calls to wpas_p2p_notif_disconnect() and
previously this was enough to force the idle timeout never hit in
practice when in P2P client role.
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>
The Provision Discovery Request needs to be sent on the operating
channel of the GO and as such, the frequency from the BSS table
(scan results) need to override the frequency in the P2P peer
table that could be based on the Listen channel of the GO.
Signed-hostap: Jouni Malinen <j@w1.fi>
When in AP mode, wpa_supplicant is now enabling WPS (only Internal
Registrar). WPS.Start() call can be used to initiate WPS negotiation
similarly to how this is done in station mode.
This was done to ctrl_iface by Jouni Malinen on April 21, 2009 (commit
3ec97afe57)
Signed-hostap: Gustavo Sverzut Barbieri <barbieri@profusion.mobi>
The GO negotiation response is very cryptic at the moment. For a success
message we only know on which interface the negotiation succeeded, not
which peer. For a failure we know the interface also and a status code
(number).
It will be very useful for clients to know upon receipt of such a message
which peer the negotiation occurred with.
Now that the peer information is available and the API is changed
already, the function composing the D-Bus message might as well include
all GO negotiation information. This is done with a dict to make things
easier on clients if this result information changes down the line.
Signed-hostap: Reinette Chatre <reinette.chatre@intel.com>
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
Need to remove ROAM command processing since the needed functionality
for it gets removed with CONFIG_NO_SCAN_PROCESSING=y.
Signed-hostap: Jouni Malinen <j@w1.fi>
The whole wpa_supplicant_ctrl_iface_ctrl_rsp_handle() function operates
on the ssid->eap field which exists only if IEEE8021X_EAPOL has been
defined. Therefore the whole function body needs to be enclosed within
an #ifdef/endif block.
Signed-hostap: Antonio Quartulli <ordex@autistici.org>
Antonio reported that RSN IBSS failed to work.
We traced it down to a GTK failure, and he then
bisected it to commit bdffdc5ddb:
"AP: Reorder WPA/Beacon initialization".
The reason this commit broke it is that the state
machine's GInit variable is never set to false as
wpa_init_keys() never gets called, and thus new
keys are generated every time the state machine
executes.
Fix this by calling wpa_init_keys() when the new
group has been initialised.
Reported-by: Antonio Quartulli <ordex@autistici.org>
Tested-by: Antonio Quartulli <ordex@autistici.org>
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
Previously, the WPS scans could have been done in associated state if we
happened to be associated when the request to use WPS was received. This
can slow down scanning and end up in unexpected state if no WPS
association is tried. Avoid these issues by disconnecting when WPS
search is started.
Signed-hostap: Jouni Malinen <j@w1.fi>
Convert core wpa_supplicant code to use u64 instead of void * for the
P2P service discovery reference. Use uintptr_t in type casts in
p2p_supplicant.c to handle the conversion without warnings.
Note: This needs to be revisited for 128-bit CPU where sizeof(void *)
could be larger than sizeof(u64).
Signed-hostap: Jouni Malinen <j@w1.fi>
Some debug messages used incorrect name for Provision Discovery.
Replace "Provisioning Discovery" with "Provision Discovery".
Signed-hostap: Jouni Malinen <j@w1.fi>
WPS overlap detection can detect false overlap if a P2P peer
changes UUID while authentication is ongoing. Changing UUID
is of course wrong but this is what some popular devices do
so we need to work around it in order to keep compatibility
with these devices. There already is a mechanism in WPS
registrar to skip overlap detection if P2P addresses of two
sessions match but it wasn't really triggered because the
address wasn't filled in in the caller function.
Let's fill in this address and also clean up WPS PBC sessions
on WSC process completion if UUID was changed.
Signed-hostap: Vitaly Wool<vitalywool@gmail.com>
If a P2P group network block is removed for any reason (e.g., wps_cancel
command) while the interface is in group formation, remove the group
formation timeout and indicate failure immediately. Previously, this
type of operations could end up leaving the timeout running and result
in somewhat unexpected group formation failure events later.
Signed-hostap: Jouni Malinen <j@w1.fi>
If Provision Discovery Request is sent for GO role (i.e., P2P Group ID
attribute is included), add the group interface name to the control
interface event on the GO. This makes it easier to figure out which
ctrl_iface needs to be used for wps_pbc/wps_pin command to authorize
the joining P2P client.
Signed-hostap: Jouni Malinen <j@w1.fi>
If p2p_prov_disc join command is used prior to p2p_connect join,
skip the duplicated provision discovery exchange.
Signed-hostap: Jithu Jance <jithu@broadcom.com>
This can be used to request Provision Discovery Request to be sent
for the purpose of joining a running group, e.g., to request the GO
to display a PIN that we can then use with p2p_connect join command.
Signed-hostap: Jithu Jance <jithu@broadcom.com>
P2P use cases do not allow use of Label config method and the earlier
code for this has already been removed, but this documentation was not
updated at the same time.
Signed-hostap: Jouni Malinen <j@w1.fi>
The wpa_state needs to be dropped back to DISCONNECTED to allow scan
results to trigger a new authentication attempt.
Signed-hostap: Jouni Malinen <j@w1.fi>
If the AP disconnects us with a reason code that indicates that it has
dropped the association, but could allow us to connect again, try to
reconnect to the same BSS without going through the full scan. This can
save quite a bit of time in some common use cases, e.g., when inactivity
timeout is used on the AP (and especially, when waking up from suspend
which has likely triggered some timeout on the AP).
Signed-hostap: Jouni Malinen <j@w1.fi>
The wpa_state needs to be dropped back to DISCONNECTED to allow scan
results to trigger a new authentication attempt. In addition, we can use
wpas_connection_failed() instead of requesting a scan after a fixed time
to make this error case more consistent with other similar error paths
in sme.c.
Signed-hostap: Jouni Malinen <j@w1.fi>
This allows the MAC address of the interface to be changed when the
interface is set down even if the interface does not get completed
removed and re-added.
Signed-hostap: Jouni Malinen <j@w1.fi>
I have a test case where I remove and insert another network adapter
between two connections to AP. The interface get the same interface name
but switches macadresses between the connections. When running WPA2 I
got a failure in EAPOL negotiation and found out that the reason for
this was that the supplicant did not update the MAC address in the
correct place.
This script shows some minimal WPS user interface requirements for
mobile AP support with wpa_supplicant.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
"wpa_cli status wps" can now be used to fetch the WPA2-Personal
passphrase from AP mode operation with wpa_supplicant to make it
easier to meet WPS requirements for legacy STA support.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When using wpa_supplicant AP mode, WPS support is enabled by default for
WPA/WPA2-Personal. Change this to enforce the WPS2 rules on not allowing
WPS to be used with WPA/TKIP-only configuration (i.e., at minimum, mixed
mode with WPA/TKIP and WPA2/CCMP has to be used for WPS to be enabled).
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
A disconnection event from the driver may end up getting delivered at a
time when wpa_supplicant is not even trying to connect (e.g., during a
scan that was already started after WPS provisioning step). In such a
case, there is not much point calling wpas_connection_failed() and
skipping this avoids confusing attempts of re-starting scanning while
the previous scan is still in progress.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The show_group_started variable could be left to 1 based on an earlier
failed attempt to start P2P client operation. This can result in
unexpected P2P-GROUP-STARTED event when a GO is started without group
formation (e.g., re-invoke a persistent group or start an autonomous
GO). Avoid this by explicitly clearing show_group_start when setting up
the GO.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Set the HT capabilities of a P2P GO according to the wiphy supported
ones. Mask-in a white-list of HT capabilities that won't cause problems
for non-supporting stations.
Signed-hostap: Arik Nemtsov <arik@wizery.com>
Trying to run sched_scan round every two seconds by defaults sounds way
too frequent since dualband cards are unlikely to be able to complete
the full scan cycle in two seconds. For now, set the hardcoded value to
10 seconds to make this somewhat more reasonable.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When normal scan can speed up operations, use that for the first three
scan runs before starting the sched_scan to allow user space sleep more.
We do this only if the normal scan has functionality that is suitable
for this or if the sched_scan does not have better support for multiple
SSIDs.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, only networks with scan_ssid=1 were included in sched_scan.
This needs to behave similarly to the normal scan where broadcast SSID
is used to find networks that are not scanned for with a specific SSID.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Instead of including only a single SSID in the sched_scan request if
the driver does not support match sets, just drop the SSID filter and
configure more SSIDs up to the sched_scan limit.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
"SET pno <1/0>" ctrl_iface command can now be used to start/stop PNO
with sched_scan driver commands. This will request offloading of
scanning to find any of the enabled networks in the configuration.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The filter_ssids pointer needs to be set to NULL if no SSID filters
are set to avoid filtering out all scan results.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This allows the internal TLS implementation to be built for TLS v1.2
support. In addition to the build option, this changes the TLS PRF
based on the negotiated version number. Though, this commit does not
yet complete support for TLS v1.2.
Signed-hostap: Jouni Malinen <j@w1.fi>
