This driver event was used separately for some Action frames, but all
the driver wrappers converted to this from information that would have
been enough to indicate an EVENT_RX_MGMT event. In addition, the
received event was then converted back to a full IEEE 802.11 management
frame for processing in most cases. This is unnecessary complexity, so
get rid of the extra path and use EVENT_RX_MGMT for Action frames as
well as other management frame subtypes.
Signed-hostap: Jouni Malinen <j@w1.fi>
Commit 88b32a99d3 added support for using
some Action frame processing in hostapd for drivers that handle most of
SME/MLME internally (it added FT, this has since be extended for SA
Query and WNM). However, this was added in a way that ended up getting
both the hostapd_rx_action() and hostapd_action_rx() called for Action
frames. This could result in an attempt to process FT, SA Query, and WNM
Action frames twice.
There is need for more significant cleanup in Action frame processing in
hostapd depending on the driver type, but as a simple step to avoid
issues, skip the hostapd_action_rx() call if hostapd_rx_action()
processed the frame.
Signed-hostap: Jouni Malinen <j@w1.fi>
Even though this is a short timeout, it is at least theoretically
possible for the interface to be removed while waiting for
reconfiguration to start. Avoid issues with this by cancelling the
timeout on any WPS interface deinit. In theory, this should be postponed
until interface removal, but that does not fit very nicely to the
current wps_hostapd.c style.
Signed-hostap: Jouni Malinen <j@w1.fi>
It was already possible to configure hostapd and wpa_supplicant to use
FT-SAE for the key management, but number of places were missing proper
AKM checks to allow FT to be used with the new AKM.
Signed-hostap: Jouni Malinen <j@w1.fi>
Action frame RX report through EVENT_RX_ACTION did not indicate whether
the frame was protected or not even though that information is available
in mlme_event_mgmt(). hostapd_rx_action() has a workaround for setting
the protected flag for SA Query frames, but that did not apply for other
frames, like FT Action. This broke FT-over-DS when PMF is enabled with
newer kernel versions (i.e., the ones that do not use monitor interface
for receiving management frames).
Signed-hostap: Jouni Malinen <j@w1.fi>
This is not really needed for anything and the standard does not require
such validation step to be made for Authentication frame transmission.
Signed-hostap: Jouni Malinen <j@w1.fi>
This can be useful for displaying the current STA state and also for
determining whether some operations are likely to fail or need
additional delay.
Signed-hostap: Jouni Malinen <j@w1.fi>
hostapd_drv_wnm_oper() needs to indicate an error if the driver callback
function is not implemented. Without this, the buf_len argument could
have been left uninitialized which could result in crashing the process.
Signed-hostap: Jouni Malinen <j@w1.fi>
This makes it easier to trigger the ESS Disassociation Imminent
operation from different sources.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This adds first steps at processing a BSS Transition Management Query on
the AP side. Mainly, the message is parsed and printed out in the debug
log and a minimal BSS Transition Management Request frame is sent as a
response. BSS Transition Management Response frame is also parsed and
details printed out in the debug log.
Signed-hostap: Jouni Malinen <j@w1.fi>
The previous version could end up calling WPA authenticator routines
even though the authenticator had not been initialized and this could
result in NULL pointer dereference.
Signed-hostap: Jouni Malinen <j@w1.fi>
Reduce race condition of the station trying to reconnect immediately
after AP reconfiguration through WPS by rescheduling the reload
timeout to happen after EAP completion rather than the originally
scheduled 100 ms after new configuration became known.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This enables more convenient protocol testing of station side
functionality in various error cases and unexpected sequences without
having to implement each test scenario within hostapd.
ext_mgmt_frame_handle parameter can be set to 1 to move all management
frame processing into an external program through control interface
events (MGMT-RX and MGMT-TX-STATUS) and command (MGMT_TX).
Signed-hostap: Jouni Malinen <j@w1.fi>
These files have been distributed only under the BSD license option
since February 2012. Clarify the license statements in the files to
match that to avoid confusion.
Signed-hostap: Jouni Malinen <j@w1.fi>
If configuration of the group key to the driver fails, move the WPA
group into failed state and indication group setup error to avoid cases
where AP could look like it is working even through the keys are not set
correctly.
Signed-hostap: Jouni Malinen <j@w1.fi>
This adds initial parts for supporting the new GCMP-256, CCMP-256,
BIP-GMAC-128, BIP-GMAC-256, and BIP-CMAC-256 cipher suites.
Signed-hostap: Jouni Malinen <j@w1.fi>
If secondary channel is provided for CSA, advertise it in the Secondary
Channel Offset element in Beacon and Probe Response frames.
Signed-hostap: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
When CSA flow starts, store the entire struct hostapd_freq_params and
not only CS frequency as it was before. The additional freq_params are
required to advertise CS supplementary IEs such as secondary channel,
wide bandwidth CS, etc.
Signed-hostap: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
This allows use of structs (and not only pointers) defined in drivers.h.
Remove also some not needed forward declarations and redundant includes.
Signed-hostap: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Wall time jumps shouldn't affect MMIC failure/TKIP countermeasures,
so use monotonic time. Change the michael_mic_failure variable to
struct os_reltime for type-safety.
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
Since the PMKSA cache only uses relative time, use the monotonic time
functions instead of wall time to be correct when the clock jumps.
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
For type-safety, make sta->acct_session_start a struct os_reltime
and then use monotonic time for accounting. For RADIUS reporting,
continue to use wall clock time as specified by RFC 2869, but for
the session time use monotonic time.
Interestingly, RFC 2869 doesn't specify a timezone, so the value
is somewhat arbitrary.
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
If more BSSes are added in config file than are supported by the driver,
segmentation fault can appear. For this case, the interface_added flag
needs to be cleared if adding a new BSS fails.
Signed-hostap: Marek Kwaczynski <marek.kwaczynski@tieto.com>
Until now DFS was simply restarting the AP when radar was detected. Now
CSA is used to perform smooth switch to the new channel. Stations not
supporting CSA will behave as before.
Signed-hostap: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-hostap: Michal Kazior <michal.kazior@tieto.com>
This is needed for AP CSA. Since CSA must happen immediately after radar
is detected there's no time to perform CAC. Thus, radar channels must be
disabled when looking for a new channel to escape to after a radar is
detected.
Signed-hostap: Michal Kazior <michal.kazior@tieto.com>
Adds support for VHT by parsing bandwidth and center_freq{1,2}.
Signed-hostap: Michal Kazior <michal.kazior@tieto.com>
Signed-hostap: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Just the usual, with a new function os_reltime_initialized()
thrown in that checks whether time has ever been retrieved
(time can't be completely zero).
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
It is possible for the authentication server to be configured with a
PKCS #12 file that includes a private key, a server certificate, and a
CA certificate. This combination could result in server_cert and ca_cert
parameters not being present and that should still result in TLS context
getting initialized.
Signed-hostap: Jouni Malinen <j@w1.fi>
Some non-mac80211 drivers, such as ath6kl, support STA inactivity timer
in firmware and may not provide connected stations' idle time to the
userspace. If the driver indicates support for offloaded operation, do
not start the inactivity timer in the hostapd.
Signed-hostap: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
struct beacon_data contains a lot of pointers. Make sure it gets cleared
to zero if hostapd_build_beacon_data() gets called from a path that does
not clear the structure first.
Signed-hostap: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Check if the BSS interface has started before setting beacon.
Lack of this condition can cause segmantation fault.
Signed-hostap: Marek Kwaczynski <marek.kwaczynski@tieto.com>
Commit de3cdf354a adding copying of the
STA's VHT capabilities into the STA entry on the AP. This was done in
allocated memory, but that new memory allocation was not freed anywhere.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The 'started' state was tracked incorrectly. It also broke DFS
as it was using hostapd_enable/disable_iface() functions.
Signed-hostap: Michal Kazior <michal.kazior@tieto.com>
Add chan_switch to the control interface of wpa_supplicant and hostapd,
and also to wpa_cli and hostapd_cli.
Signed-hostap: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Build CSA settings and call the driver to perform the switch. Construct
Beacon, Probe Response, and (Re)Association Response frames both for CSA
period and for the new channel. These frames are built based on the
current configuration. Add CSA IE in Beacon and Probe Response frames.
Signed-hostap: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
We were not filtering the EVENT_CHANNEL_LIST_CHANGED events based on the
regulatory hint initiator. So wait for EVENT_CHANNEL_LIST_CHANGED event
after our own change was triggered even when regulatory hint initiator
was the driver. This could result in the wait for the channel list to be
updated to be terminated before the real change has occurred and as
such, old channel list remaining in use when configuring
hostapd/wpa_supplicant country parameter. Fix this by filtering the
hints according to the initiator and only regulatory hints initiated by
user will be used to stop the wait.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
If remaining AP session timeout is less than 5 seconds
for an existing station, replenish the timeout to 5 seconds.
This allows stations to be able to recycle a dialog token
value beyond 5 seconds for GAS exchange.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Add a parameter to send the overlapping BSS scan parameter
information element. This will require clients to perform
background scans to check for neigbors overlapping this
HT40 BSS. Since the implementation is incomplete it should
only be used for testing.
Signed-hostap: Paul Stewart <pstew@chromium.org>
It is possible for additional BSSs to be added while the primary
interface is still in the process of determining channel parameters (HT
co-ex scan, ACS, DFS). Do not enable secondary interfaces in such state
immediately, but instead, wait for the pending operation on the primary
interface to complete. Once that's done, the added extra BSSs will also
be enabled in hostapd_setup_interface_complete().
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Reject multiple calls to hostapd_setup_bss() for any specific interface.
hostapd_cleanup() must have been called first before trying to restart a
BSS.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
hostapd_bss_deinit() takes care of freeing the associated stations and
calling hostapd_cleanup() to deinit per-BSS services.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This reverts parts of commit 390e489c0d
that tried to enable removal of the first BSS. Since that operation is
now forced to remove all BSSs, these changes are not needed. The
hostapd_if_remove() operation in hostapd_free_hapd_data() is problematic
for the first BSS since it ends up freeing driver wrapper information
that is needed later when deinitializing the driver wrapper.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Since the control interface is now initialized as part of
hostapd_setup_interface(), it needs to be deinitialized on the error
path.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
If a secondary BSS is removed while it is waiting for the primary BSS to
complete channel setup (e.g., due to HT co-ex scan, ACS, or DFS), the
hostapd_data instance has not yet been initialized. Fix the BSS removal
code to take this special case into account and not try to deinitialize
the hostapd_data instance that has not yet been started.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The changes in commit 5592065850 to allow
any BSS to be removed were a bit too early since there are still number
of areas that use the first BSS as a special case. Especially the
driver_ops API is going to require quite a bit of cleanup before removal
of the first BSS without the other BSSes of the same radio can be done
safely.
For now, force all BSSs to be removed in case the first one is removed.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Limit the calls to eloop_terminate() to happen only for the
initialization failure from the interfaces that we specified on the
command line. This allows hostapd process to continue operating even if
a dynamically added interface fails to start up. This allows the upper
layer software to fix a configuration error and retry.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
hostapd_set_freq_param() rejected the 20 MHz channel case with
vht_enabled due to the existing validation step including only 5 GHz (to
be more exact, only >= 5000 MHz). While the behavior may not be fully
defined for 2.4 GHz, we can enable this based on driver capability
advertisement to fix automatic VHT selection for P2P use cases.
mac80211_hwsim advertises VHT for 2.4 GHz band and that resulted in
failures when trying to start GO on that band with vht=1 parameter.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
NL80211_ATTR_CENTER_FREQ1 is defined to be used for anything but 20 MHz
bandwidth, so it could be unset for 20 MHz channels. Do not use it to
override center frequency from NL80211_ATTR_WIPHY_FREQ (if available)
for 20 MHz channels to avoid clearing frequency.
Signed-hostap: Jouni Malinen <j@w1.fi>
Better share the same function for initializing control interface from
the two possible paths that can add a new interface to hostapd.
Signed-hostap: Jouni Malinen <j@w1.fi>
This is a per-BSS configuration parameter and as such, needs to be
configured to the driver from hostapd_setup_bss() instead of
hostapd_driver_init().
Signed-hostap: Jouni Malinen <j@w1.fi>
DFS operations are specific to the interface (radio/wiphy), not BSS
(netdev/vif), so hostapd_iface is the appropriate element to use in
them.
Signed-hostap: Jouni Malinen <j@w1.fi>
If per-BSS configuration enabling did not provide a phy name, iface->phy
was left empty. It can be helpful to set this up automatically, so fill
that when initializing the interface.
Signed-hostap: Jouni Malinen <j@w1.fi>
Only scan the affected channels instead of all enabled channels when
determining whether the primary and secondary channel for HT40 needs to
be swapped. This speed up HT40 setup considerably on 5 GHz band.
Signed-hostap: Jouni Malinen <j@w1.fi>
If hostapd is requested to set the country code and the previous country
code differs from the new one, the channel list information from the
driver may change. This change may not be instant, so wait for an
EVENT_CHANNEL_LIST_CHANGED event before continuing interface setup with
fetching of the channel list information. This fixes issues where the
selected channel is not available based on the previous regulatory data
and update through CRDA takes some time.
Signed-hostap: Jouni Malinen <j@w1.fi>
Channel determination may take considerable time when ACS or DFS is
used, so it is useful to be able to observe this process through the
control interface. Move the initialization of the control interfaces to
happen before channel determination so that this can be achieved.
Signed-hostap: Jouni Malinen <j@w1.fi>
Use hostapd_interface_init2() for all interfaces instead of the
previously used different paths for per-interface-config and
per-BSS-config cases. This moves the calls to hostapd_driver_init() and
hostapd_setup_interface() to happen after all configuration files have
been read.
Signed-hostap: Jouni Malinen <j@w1.fi>
Previously, ENABLE command ended up freeing the hostapd_iface context on
initialization failures, but did not even remove the interface from the
list of available interfaces. This resulted in use of freed memory with
any following operation on the same interface. In addition, removing the
interface on initialization failure does not seem like the best
approach. Fix both of these issues by leaving the interface instance in
memory, but in disabled state so that the configuration can be fixed and
ENABLE used again to enable the interface or REMOVE used to remove the
interface.
Signed-hostap: Jouni Malinen <j@w1.fi>
When removing and re-adding the first wlan# netdev to hostapd
dynamically, the netdev is already present and should not be removed and
re-added to maintain its state as not-added-by-hostapd so that it does
not get removed automatically.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The global control interface command "REMOVE <ifname>" can now be used
to remove a single virtual interface (BSS) without affecting other
virtual interfaces on the same radio.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The global control interface command "ADD
bss_config=<phyname>:<config file>" can now be used to add a single
virtual interface (BSS) to an interface.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This moves the vif added check from core hostapd to the driver wrapper
(only driver_nl80211.c uses this) and reorders operations a bit to allow
the first BSS (vif) to be removed from a multi-BSS setup.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Return control flow to hostapd by calling hostapd_acs_completed()
if requesting a scan from the underlying device fails.
Signed-hostapd: Helmut Schaa <helmut.schaa@googlemail.com>
If radar was detected single BSS is notified about it. This caused only
that single BSS to be stopped and restarted. However, due to nl80211
interface combinations the BSS was not started on a new channel and
other BSSes remained operating on the old channel.
The downside is that hostapd_disable_iface() causes deauth frames to be
sent. This is undesired but on the other hand it doesn't make sense to
create workarounds that imitate CSA's 'block tx'. For proper Tx
quiescing CSA should be properly implemented.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Decouple HT/VHT offset/center-freq calculations from channel lookup.
This will be necessary for further improvements on the DFS codebase.
Signed-hostap: Michal Kazior <michal.kazior@tieto.com>
Reject RELOAD control interface command if the dynamic configuration
changes have resulted into a state where the configuration is invalid.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This allows the configuration validation routines to be called from
src/ap/*.c for runtime updates of configuration without reprocessing the
full configuration file.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This provides a new option for configuring multiple virtual interfaces
(BSS) that share a single radio. The new command line parameter
-b<phyname>:<config file name> is used to define one or more virtual
interfaces for each PHY. The first such entry for a new PHY is used to
initialize the interface structure and all consecutive parameters that
have the same PHY name will be added as virtual BSS entries to that
interface. The radio parameters in the configuration files have to be
identical.
This can be used as an alternative for the bss=<ifname> separator and
multiple BSSes in a single configuration file design while still
allowing hostapd to control the PHY (struct hostapd_iface) as a group of
virtual interfaces (struct hostapd_data) so that common radio operations
like OLBC detection and HT40 co-ex scans can be done only once per real
radio.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This makes it more convenient to move BSS configuration entries between
struct hostapd_config instances to clean up per-BSS configuration file
design.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This may be needed if the wpa_psk information for previously derived
from passphrase and either the SSID or the passphrase has changed.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
