This information was already available from the nl80211 control port RX
path, but it was not provided to upper layers within wpa_supplicant and
hostapd. It can be helpful, so parse the information from the driver
event.
Signed-off-by: Jouni Malinen <j@w1.fi>
wpa_validate_wpa_ie() might update sm->* values, so it should not be
allowed for an existing STA entry if that STA has negotiated MFP to be
used for the association. Fix this by first checking whether an SA Query
procedure needs to be initiated. In particular, this prevents a
potential bypass of the disconnection protection.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
This commit activates the functionality of the previous commits by
handling the actual events that will trigger the CCA process.
Tested-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Only the SME-in-hostapd case updated sta->ext_capability while the
SME-in-the-driver case updated sta->qos_map_enabled, but not other items
related to the extended capabilities. This resulted in reduced
information being available through the control interface.
Use the shared helper function for both cases to get matching
information available regardless of the SME architecture.
Signed-off-by: Chaoli Zhou <quic_zchaoli@quicinc.com>
Check driver support for SA Query offload in AP mode and skip starting
SA Query timer on CSA for OCV enabled STAs when the driver indicates
support for offloading SA Query procedures.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
hostapd should update Supported Channel Width Set of HT Capability
Information field after channel switching done. Otherwise, it would
continue to use the old setting.
Signed-off-by: peterhuang <peterhuang@realtek.com>
Simplify the implementation by using shared functions for parsing the
capabilities instead of using various similar but not exactly identical
checks throughout the implementation.
Signed-off-by: Jouni Malinen <j@w1.fi>
This is needed to be able to move from 80 MHz or lower bandwidth to 160
or 80+80 MHz bandwidth (and back) properly without leaving the Beacon
frame VHT elements showing incorrect information.
Signed-off-by: Jouni Malinen <j@w1.fi>
Add HE as an accepted option ("he") in the CHAN_SWITCH command similarly
to the way VHT is addressed.
Signed-off-by: Muna Sinada <msinada@codeaurora.org>
Initiate SA Query for a WPS+MFP AP. STA flag checks for MFP added for
Association Request frames that use WPS IE without RSNE. This is needed
to avoid giving an opportunity to skip the protection against
disconnections when WPS is enabled.
Signed-off-by: Disha Das <dishad@codeaurora.org>
The AP mode condition for initiating the SA Query procedure when
receiving a new (Re)Association Request frame used only association
state and MFP negotiation result without checking that the key exchange
has been completed. This can give rise to a corner case where the SA
Query procedure may get started after open association but before the
4-way handshake has been completed, resulting in open SA query frames
over the air.
Fix this by adding station authorized check in hostapd_notif_assoc() and
check_assoc_ies().
Signed-off-by: Rohan <drohan@codeaurora.org>
The function hostapd_event_ch_switch() derived the seg0_idx and seg1_idx
values only for the 5 GHz and 2.4 GHz bands and the 6 GHz case ended up
using incorrect calculation based on the 5 GHz channel definitions.
Fix this by adding support for 6 GHz frequencies.
Signed-off-by: Rohan <drohan@codeaurora.org>
This maintains knowledge of whether H2E or PK was used as part of the
SAE authentication beyond the removal of temporary state needed during
that authentication. This makes it easier to use information about which
kind of SAE authentication was used at higher layer functionality.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Verify that all associated STAs that claim support for OCV initiate an
SA Query after CSA. If no SA Query is seen within 15 seconds,
deauthenticate the STA.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Discard the FT Reassociation Request frame instead of rejecting it
(i.e., do not send Reassociation Response frame) if RSNXE Used is
indicated in FTE, but no RSNXE is included even though the AP is
advertising RSNXE.
While there is not really much of a difference between discarding and
rejecting the frame, this discarding behavior is what the standard says
for this type of an error case.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
In repeater mode remote AP may request channel switch to a new channel.
Check if DFS is required for the new channel before proceeding with
normal AP operations. Start CAC procedure if radar detection is required
and channel is not yet marked as available.
Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
The new hostapd configuration parameter dpp_pfs can be used to specify
how PFS is applied to associations. The default behavior (dpp_pfs=0)
remains same as it was previously, i.e., allow the station to decide
whether to use PFS. PFS use can now be required (dpp_pfs=1) or rejected
(dpp_pfs=2).
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
hostapd (and wpa_supplicant in AP mode) was internally updating the STA
flags on disconnection cases to remove authorization and association.
However, some cases did not result in immediate update of the driver STA
entry. Update all such cases to send out the update to the driver as
well to reduce risk of race conditions where new frames might be
accepted for TX or RX after the port authorization or association has
been lost and configured keys are removed.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
hostapd will trigger EDMG auto channel selection by setting
QCA_WLAN_VENDOR_ATTR_ACS_EDMG_ENABLED. The 60 GHz driver will be
called to start an auto channel selection and will return the
primary channel and the EDMG channel.
Signed-off-by: Noam Shaked <nshaked@codeaurora.org>
The previous design for adding RSNXE into FT was not backwards
compatible. Move to a new design based on 20/332r3 to avoid that issue
by not include RSNXE in the FT protocol Reassociation Response frame so
that a STA not supporting RSNXE can still validate the FTE MIC
correctly.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This is preparation for being able to support hw_mode=any to select the
best channel from any supported mode.
Signed-off-by: Neo Jou <neojou@gmail.com>
The MBO PMF check for AP SME in the driver case was added into a
location that is skipped for WPS processing. That was not really the
correct place for this since the skip_wpa_check label was supposed to
remain immediately following the WPA checks. While this does not really
have much of a practical impact, move the check around so that the
skip_wpa_check label remains where it is supposed to be.
Fixes: 4c572281ed ("MBO: Mandate use of PMF for WPA2+MBO association (AP)")
Signed-off-by: Jouni Malinen <j@w1.fi>
Save RM enabled capability element of an associating station when
hostapd use the device AP SME similarly to how this information is saved
with SME-on-hostapd cases. This allows radio measurement operations
(e.g., REQ_BEACON) to be used.
Signed-off-by: Ouden <Ouden.Biz@gmail.com>
Hardcoded CONFIG_IEEE80211N to be included to clean up implementation.
More or less all new devices support IEEE 802.11n (HT) and there is not
much need for being able to remove that functionality from the build.
Included this unconditionally to get rid of one more build options and
to keep things simpler.
Signed-off-by: Jouni Malinen <j@w1.fi>
In the function owe_assoc_req_process(), values assigned to the reason
argument imply that it should be renamed to status. Rename 'reason' to
'status' and modify the uses of owe_assoc_req_process() accordingly.
Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Based on the now documented seg0/seg1 values from offloaded ACS, there
is a mismatch between the driver interface and internal hostapd use.
The value of segment0 field in ACS results is the index of the channel
center frequency for 20 MHz, 40 MHz, and 80M Hz channels. The value is
the center frequency index of the primary 80 MHz segment for 160 MHz and
80+80 MHz channels.
The value of segment1 field in ACS results is zero for 20 MHz, 40 MHz,
and 80 MHz channels. The value is the index of the channel center
frequency for 160 MHz channels and the center frequency index of the
secondary 80 MHz segment for 80+80 MHz channels.
However, in struct hostapd_config, for 160 MHz channels, the value of
the segment0 field is the index of the channel center frequency of 160
MHz channel and the value of the segment1 field is zero. Map the values
from ACS event into hostapd_config fields accordingly.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
After receiving ACS offload results, select the current hw_mode based on
the frequency selected by the ACS algorithm. The current hw_mode will be
further used during other validation steps such as HT capability
validations, DFS validation, etc.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Replace channel fields with frequency fields in ACS completed event
interface from the driver layer. Use
QCA_WLAN_VENDOR_ATTR_ACS_PRIMARY_FREQUENCY and
QCA_WLAN_VENDOR_ATTR_ACS_SECONDARY_FREQUENCY attributes if the driver
includes them in the QCA_NL80211_VENDOR_SUBCMD_DO_ACS event, otherwise
use QCA_WLAN_VENDOR_ATTR_ACS_PRIMARY_CHANNEL and
QCA_WLAN_VENDOR_ATTR_ACS_SECONDARY_CHANNEL attributes to maintain
backwards compatibility with old drivers.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
wpa_validate_wpa_ie() was already extended to cover these cases with
WPA_INVALID_PMKID return value, but hostapd_notif_assoc() did not have
code for mapping this into the appropriate status code
(STATUS_INVALID_PMKID) and ended up using the default
(WLAN_STATUS_INVALID_IE) instead. This caused AP SME-in-driver cases
returning incorrect status code when the AP did not have a matching
PMKSA cache entry. This could result in unexpected station behavior
where the station could continue trying to use a PMKSA cache entry that
the AP does not have and not being able to recover this.
Fix this by adding the previously missed mapping of validation errors to
status/reason codes.
Fixes: 567da5bbd0 ("DPP: Add new AKM")
Fixes: 458d8984de ("SAE: Reject request with mismatching PMKID (no PMKSA cache entry)")
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
If a STA indicates support for SAE H2E in RSNXE and H2E is enabled in
the AP configuration, require H2E to be used.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This is needed to be able to compare the received RSNXE to a protected
version in EAPOL-Key msg 2/4.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Do not process any received Management frames with unexpected/invalid SA
so that we do not add any state for unexpected STA addresses or end up
sending out frames to unexpected destination. This prevents unexpected
sequences where an unprotected frame might end up causing the AP to send
out a response to another device and that other device processing the
unexpected response.
In particular, this prevents some potential denial of service cases
where the unexpected response frame from the AP might result in a
connected station dropping its association.
Signed-off-by: Jouni Malinen <j@w1.fi>
Hardcode this to be defined and remove the separate build options for
PMF since this functionality is needed with large number of newer
protocol extensions and is also something that should be enabled in all
WPA2/WPA3 networks.
Signed-off-by: Jouni Malinen <j@w1.fi>
This implements the required functionality in hostapd to facilitate OWE
connection with the AP SME-in-driver cases. Stations can either send DH
IE or PMKID (in RSNE) (or both) in Association Request frame during the
OWE handshake. The drivers that use this offload mechanism do not
interpret this information and instead, pass the same to hostapd for
further processing. hostapd will either validate the PMKID obtained from
the STA or generate DH IE and further indicate the same to the driver.
The driver further sends this information in the Association Response
frame.
Signed-off-by: Srinivas Dasari <dasaris@codeaurora.org>
Signed-off-by: Liangwei Dong <liangwei@codeaurora.org>
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>
It is apparently possible to somehow trigger the driver to report a
channel switch event during ACS operation when the interface information
is not yet complete. hapd->iface->current_mode could be NULL in that
case and that would result in process termination due to NULL pointer
dereference.
It should not really be possible to trigger a channel switch during ACS
is running (i.e., before the AP mode operation has been started), but
since that has been seen in an arbitrary test sequence with interface
start/stop operations with various parameters (both valid and invalid),
better prevent a crash here by ignoring the unexpected event instead of
trying to process it.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This makes it easier to upper layer components to manage operating
channels in cases where the same radio is shared for both station and AP
mode virtual interfaces.
Signed-off-by: Omer Dagan <omer.dagan@tandemg.com>
Use Diffie-Hellman key exchange to derivate additional material for
PMK-to-PTK derivation to get PFS. The Diffie-Hellman Parameter element
(defined in OWE RFC 8110) is used in association frames to exchange the
DH public keys. For backwards compatibility, ignore missing
request/response DH parameter and fall back to no PFS in such cases.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Include only one of hostapd_mgmt_rx() and hostapd_action_rx() functions
in the build. Previously, NEED_AP_MLME builds (i.e., cases where hostapd
AP MLME implementation is included) included both of these functions and
both were tried in sequence. In addition to being difficult to
understand, that could result in unexpected behavior if
hostapd_mgmt_rx() rejected a frame and return 0 to allow
hostapd_action_rx() to attempt to process the frame.
All the operations included in hostapd_action_rx() are supposed to be
available through the hostapd_mgmt_rx() call in handle_action() and
those should result in the exact same Category/Action-based handler
function to be called in the end. As such, this should not result in
different behavior. And if there is a difference, that would be pointing
at a hidden bug that would need to be fixed anyway. Furthermore, builds
without NEED_AP_MLME would not have any difference in behavior or
contents of the binary either.
Signed-off-by: Jouni Malinen <j@w1.fi>
There is no need to go through the following handler calls in
hostapd_action_rx() after having found the matching WLAN_ACTION_WNM
handler.
Signed-off-by: Jouni Malinen <j@w1.fi>
hostapd_action_rx() was pointing at incorrect field (Action vs.
Category) for the wpa_ft_action_rx() call and the length check for SA
Query Action frames. This resulted in those frames getting dropped as
invalid (FT) or ignored as truncated (SA Query). Fix this by pointing to
the correct place at the beginning of the frame body.
This issue had a long history. These were broken during cleanup in
commit dbfb8e82ff ("Remove unnecessary EVENT_RX_ACTION") which
actually fixed the initial reason for the error accidentally. It was
just that that error was needed to cancel out another earlier error..
One of the errors came from misuse of the EVENT_RX_ACTION API in commit
deca6eff74 ("atheros: Add new IEEE 802.11r driver_ops"). That pointed
struct rx_action data/len to cover the Action frame from the Category
field to the end of the frame body while the API was documented to cover
Action field to the end of the frame body. This error was cancelled by
another error in commit 88b32a99d3 ("FT: Add FT AP support for drivers
that manage MLME internally") that called wpa_ft_action_rx() with the
struct rx_action::data field as the second argument. That argument needs
to point to the Category field, but that struct rx_action field was
supposed to point to the Action field.
Number of the Action frame handlers added into hostapd_action_rx() had
been fixed more or less accidentally after this in various other
commits, but the FT and SA Query handlers had ended up maintaining the
incorrect operations. This is now fixing those.
This seems to fix at least some cases of FT-over-DS with drivers that
use driver-based AP MLME. Such drivers might use internal SA Query
processing, so it is not clear whether that part actually fixes any real
issues.
Signed-off-by: Jouni Malinen <j@w1.fi>
According to IEEE Std 802.11-2016, 9.4.2.25 when fields of an RSNE are
not included, the default values are used. The cipher suite defaults
were hardcoded to CCMP in the previous implementation, but the default
is actually different for DMG: GCMP (per 9.4.2.25.2).
It is not possible to find out from the RSNE if the network is non-DMG
or DMG, so callers of wpa_parse_wpa_ie_rsn() need to handle this case
based on context, which can be different for each caller.
In order to fix this issue, add flags to the wpa_ie_data indicating
whether pairwise/group ciphers were included in the RSNE. Callers can
check these flags and fill in the appropriate ciphers. The
wpa_parse_wpa_ie_rsn() function still initializes the ciphers to CCMP by
default so existing callers will not break. This change also fixes some
callers which need to handle the DMG network case.
Signed-off-by: Lior David <liord@codeaurora.org>
When an interface is re-enabled after it was disabled during CAC, it
won't ever get active since hostapd is waiting for a CAC_FINISHED while
kernel side is waiting for a CMD_RADAR_DETECT to start a CAC.
This commit checks for a pending CAC when an interface is enabled and if
so restarts its DFS processing.
Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
After performing a successful channel switch, the AP should update its
own neighbor report element, so do this from src/ap/drv_callbacks.c
after a successful switch.
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
After the network changed to a new channel, perform an SA Query with the
AP after a random delay if OCV was negotiated for the association. This
is used to confirm that we are still operating on the real operating
channel of the network. This commit is adding only the station side
functionality for this, i.e., the AP behavior is not changed to
disconnect stations with OCV that do not go through SA Query.
Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@cs.kuleuven.be>
