Shivani Baranwal [Thu, 20 Oct 2022 07:13:03 +0000 (12:43 +0530)]
tests: P2P persistent group formation with extended listen
Add a new P2P persistent group formation, re-invocation, and cancel test
to verify that P2P_EXT_LISTEN is avoided and the scan is performed in
the P2P Client role to find the P2P GO for the ongoing P2P persistent
group formation on the current interface.
Shivani Baranwal [Thu, 20 Oct 2022 12:46:28 +0000 (18:16 +0530)]
P2P: Skip Extended Listen timeout to allow scans during group formation
Scans are allowed on the current interface for group formation only when
in the P2P_SEARCH, P2P_IDLE, or P2P_PROVISIONING state. But Extended
Listen timeout being enabled moves to the P2P_LISTEN_ONLY state. Due to
this P2P connection fails if the GO is not found with scans triggerred
before Extended Listen timeout. To avoid this skip Extended Listen
timeout to allow scans during group formation on the current interface.
P2P: Clone sae_pwe config to new group interface config
Clone sae_pwe configuration value when creating a new P2P group
interface. This is needed to avoid P2P connection failure at the P2P
Client side due to SAE H2E being disabled in the 6 GHz band operation
when a new group interface is created for the connection.
Hu Wang [Wed, 12 Oct 2022 06:52:12 +0000 (23:52 -0700)]
P2P: Allow PSC channel to be used for 6 GHz BW40
For the 6 GHz opclass 132, ch for loop only allows non-PSC channels { 1,
9, 17, 25, 33, 41, 49,... } to be used. This does not match the IEEE Std
802.11ax-2021 expectation of a 6 GHz-only AP "should set up the BSS with
a primary 20 MHz channel that coincides with a preferred scanning
channel".
Increase ch by 4 to allow PSC channel to be used for 6 GHz BW40.
Qiwei Cai [Thu, 3 Nov 2022 02:33:09 +0000 (10:33 +0800)]
P2P: Track peer 6 GHz capability more robustly
It's necessary to maintain knowledge of the 6 GHz capability of the
peer. Since the Device Capability field migth change between frames
depending on the context in which they are used, loooking at the last
received message might not always provide accurate information.
Add supports_6ghz bool variable in struct p2p_device, initialize it to
false and set to true if the P2P_DEV_CAPAB_6GHZ_BAND_CAPABLE bit is set
to 1 in any P2P frame that includes the P2P Capability attribute. This
boolean would not be cleared to false at any point in time so that the
info doesn't disappear dynamically.
Add QCA vendor subcommand to notify about primary netdev
Add a new vendor subcommand
QCA_NL80211_VENDOR_SUBCMD_MLO_PEER_PRIM_NETDEV_EVENT to send notification
to application layer about primary netdev of an MLO peer association.
Also define the attributes present in this subcommand.
Sunil Dutt [Thu, 20 Oct 2022 06:35:13 +0000 (12:05 +0530)]
A vendor roam control configuration for delaying hand off for RX
Introduce a run time roam configuration for "hand off delay for RX".
This value, in milliseconds, will delay the hand off for the specified
time to receive pending RX frames from the current BSS.
Vinay Gannevaram [Mon, 10 Oct 2022 04:39:51 +0000 (10:09 +0530)]
PASN: Change pasn_use_384() to be a non-static function
libpasn.so users, e.g., Wi-Fi Aware module, could use this function
while deriving protocol specific keys using KDK. Move this function to
global scope to allow that.
struct wpas_pasn is common to both initiator and responder, so rename it
to pasn_data to avoid the "wpas_" prefix that could be seen as a
reference to wpa_supplicant (PASN initiator).
PASN: Add pairing verification wrapper function for Wi-Fi Aware
Wi-Fi Aware uses PASN handshake to authenticate peer devices. Devices
can simply verify each other for subsequent sessions as long as the keys
remain valid after authentication has been successful and pairing has
been established.
In pairing verification, Wi-Fi Aware devices uses PASN Authentication
frames with custom PMKID and Wi-Fi Aware R4 specific verification IEs.
It does not use wrapped data in the Authentication frames. This function
provides support to construct PASN Authentication frames for pairing
verification.
Jouni Malinen [Fri, 4 Nov 2022 10:56:37 +0000 (12:56 +0200)]
PASN: Mark wpas_pasn_start() comeback argument const
Make it clear that this argument is not modified and freed within PASN
processing to be consistent with the only use of it by calling
wpas_pasn_build_auth_1() which has already marked it const.
PASN: Allow extra elements to be added into PASN Authentication frames
Wi-Fi Aware defines protocol specific elements in PASN Authentication
frames for pairing setup. Add an option to add this type of custom
elements into PASN frames. This is mainly for the libpasn.so use cases.
PASN: Makefile and Android.mk changes for libpasn.so
The wpa_s and hapd context are isolated from the PASN initiator and
responder code and this functionality is now in the separate src/pasn
directory. Add option to build libpasn.so with this functionality. This
library can be used by a Wi-Fi Aware component to support NAN pairing
with other devices.
Vinay Gannevaram [Sun, 30 Oct 2022 13:10:07 +0000 (18:40 +0530)]
PASN: Move responder functionality into a separate file
PASN responder validates auth 1 frame and sends auth 2 frame to the
initiator. It analyses the auth 3 frame and verifies successful
authentication. Wi-Fi Aware modules can reuse this functionality through
a shared library libpasn.so generated from this code. Move the PASN
functionality that is now decoupled from the hapd context into a
separate file in a common directory to make it easier to build such a
library.
Vinay Gannevaram [Sun, 30 Oct 2022 12:48:16 +0000 (18:18 +0530)]
PASN: Move initiator changes into a separate file
PASN initiator functionality builds auth 1 and auth 3 frames, and
processes auth 2 frame received from the responder. Wi-Fi Aware modules
can reuse this functionality through a shared library libpasn.so
generated from this code. Move the PASN functionality that is now
decoupled from the wpa_s context into a separate file in a common
directory to make it easier to build such a library.
Move SAE comeback token functionality into a separate file
This is helpful in being able to get the functionality needed for SAE
into a separate library (libpasn.so) without needing all of the
ieee802_11.c functionality.
PASN: Compute MIC from RSNE and RSNXE of the frame for Wi-Fi Aware
Wi-Fi Aware R4 specification defines Beacon RSNE/RSNXE to be same as
RSNE/RSNXE present in Auth2 frame. So, MIC validation should be done
with the RSNE and RSNXE received in Auth2 frame.
PASN: Allow custom PMKID in Authentication frames for Wi-Fi Aware
Wi-Fi Aware R4 specification introduces a custom PMKID derived from
Nonce and TAG. This custom PMKID is included in PASN Authentication
frames during pairing verification. So, allow use of a custom PMKID in
PASN frames and validate it using a function handler. Wi-Fi Aware
component that uses libpasn.so should take care of validating the custom
PMKID.
PTK is stored in the PTKSA cache following a successful PASN handshake,
however AKMP is removed upon a WPA PASN reset. The PASN handshake is
used in the Wi-Fi Aware R4 specification to define the pairing setup
process. KDK is used to generate a new set of keys, while AKMP is
required for key derivation for pairing. So, keep AKMP in the PTKSA
cache.
PASN: Common wpas_pasn structure for initiator and responder
Make struct wpas_pasn common for both the initiator and the responder by
adding required parameters for responder to the existing struct
wpas_pasn. This makes both hostapd and wpa_supplicant share the same
structure definitions in preparation for allowing PASN functionality to
be built into a separate library.
Vinay Gannevaram [Sat, 29 Oct 2022 13:11:39 +0000 (18:41 +0530)]
PASN: Add a common header file for initiator and responder
This is a step towards decoupling the PASN initiator and responder
implemenentation is decoupled from the wpa_s and hapd contexts and
moving to a common folder for better abstraction. Move the struct
wpas_pasn definition to a common file for initiator and responder. The
idea is to provide a library libpasn.so from PASN common code. Include
C++ compatibilty wrapper to extend libpasn.so support for modules using
cpp code base.
This library can be used in applications implementing protocols based on
the PASN handshake.
Vinay Gannevaram [Sat, 29 Oct 2022 13:01:29 +0000 (18:31 +0530)]
PASN: Function handler to transmit Authentication frames
Introduce a function handler to transmit PASN Authentication frames to
the driver. This removes the wpa_s dependency from PASN functionality
for sending the frames.
PASN: Remove wpa_s dependency for wpas_pasn_start()
Before invoking wpas_pasn_start(), derive KDK and secure LTF flags.
Instead of using network id for pasn_start(), use a pointer to the
struct wpa_ssid.
PASN: Remove wpa_sm dependency to add an entry to PMKSA cache
Store PMKSA cache entry in wpas_pasn and remove wpa_sm dependency to add
an entry to PMKSA cache. This is a step towards allowing the PASN
implementation to be used outside the context of wpa_supplicant.
PASN: Remove wpa_s dependency for SAE wrapped data functions
Use struct wpas_pasn (i.e., &wpa_s->pasn) as the function argument for
the SAE functionality that does not need the full struct wpa_supplicant
context. This is a step towards allowing PASN to be used outside the
context of wpa_supplicant.
PASN: Add wpa_pasn_reset() to eliminate need for struct wpa_supplicant
Split wpas_pasn_reset() so that the main reset steps can be used without
an instance of struct wpa_supplicant. This is needed to allow PASN
implementation to be used for additional purposes outside the context of
wpa_supplicant.
Enable use of PMKSA caching independent of RSN supplicant state machine
Allow PMKSA caching functionality to be used even if sm, current_cb, and
free_cb are uninitialized. This makes RSN supplicant state machine
independent PMKSA caching possible for other modules, enabling
functional reuse.
Qiwei Cai [Thu, 20 Oct 2022 05:37:38 +0000 (13:37 +0800)]
MLD STA: Fix crash caused by NULL wpa_s->current_ssid
For wpa_supplicant_get_new_bss(), wpa_s->current_ssid can be NULL in
some cases. Add a NULL check before accessing it to avoid NULL pointer
dereference errors.
Fixes: 7784964cbe88 ("MLD STA: Fetch MLO connection info into core wpa_supplicant") Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
Jouni Malinen [Thu, 3 Nov 2022 10:38:06 +0000 (12:38 +0200)]
More debug prints for EAPOL-Key message generation (Authenticator)
AES-WRAP(KEK) protection of the Key Data field did not include all the
details in the log. Extend that to cover the details that were already
present for the AES-SIV case to make the debug log more useful for
analyzing issues in this area. Furthermore, print the full EAPOL-Key
frame in the log.
Jouni Malinen [Wed, 2 Nov 2022 09:56:46 +0000 (11:56 +0200)]
MLD STA: Fully clear MLO info to avoid use of uninitialized members
The initial wpa_drv_get_mlo_info() implementation cleared only the
valid_links information within struct driver_sta_mlo_info before trying
to fetch the information from the driver. While this is likely going to
work fine in practice, this can result in static analyzer warnings on
use of uninitialized memory (e.g., mlo.assoc_link_id could have been
read if wpa_s->valid_links was set to a nonzero value). In any case, it
is better to avoid such unnecessary warnings by clearing the full data
structure before using it.
Fixes: 7784964cbe88 ("MLD STA: Fetch MLO connection info into core wpa_supplicant") Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
MLD STA: Use MLD addresses for sending non-Public Action frames
The Linux kernel expects to use the AP MLD address as destination and
BSSID addresses for non-Public Action frames when the current
association is MLO capable. Use the MLD addresses to support this.
MLD STA: Support processing of M1 received before association event
EAPOL-Key msg 1/4 indication can be received before association
indication from the driver. For MLO connection, the source address check
of such frames should be against the AP MLD address instead of the
associated link BSSID.
EHT: Definitions for STA Control fields of Basic Multi-Link element
Define subelement IDs and Per-STA Profile STA control fields of Basic
Multi-Link element as described in IEEE P802.11be/D2.2. Also add define
for Multi-Link Control field length.
Instead of saving the pointers to the fragment elements during parsing
of the frame, append all fragments found right after the element to the
element length. Defragmentation of the element can be done by parsing
appended fragment elements. This approach removes the limit on the
maximum number of fragmented elements supported in a frame.
MLD STA: Fetch MLO association Link ID info to core wpa_supplicant
Fetch the MLO association Link ID info from the driver to the
wpa_supplicant instance of the corresponding MLD STA interface. This
info is needed when setting the MLO connection info to wpa_sm.
nl80211: Check MLO link status info in NL80211_CMD_CONNECT
NL80211_CMD_CONNECT event indicates MLO links status info with kernel
commit 53ad07e9823b ("wifi: cfg80211: support reporting failed links").
Consider MLO links as valid links only if the status is success (or was
not indicated).
Vendor attribute to configure QoS/AC upgrade for UDP frames
Introduce a new attribute to configure access category
override for UDP frames of BE/BK category. Unlike, the
earlier attribute QCA_WLAN_VENDOR_ATTR_CONFIG_UDP_QOS_UPGRADE
which will override for all UDP frames, this attribute is
for overriding only for BE/BK based UDP frames.
Jouni Malinen [Sun, 16 Oct 2022 15:25:11 +0000 (18:25 +0300)]
SAE: Fix AKM suite selector check for external authentication
AKM suite selector check was initially implemented with incorrect byte
swapping of the value from the driver (nl80211). Fix this and leave a
workaround option for any potentially deployed device where the driver
might be using the swapped byte order.
Fixes: 5ff39c1380d9 ("SAE: Support external authentication offload for driver-SME cases") Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
Jouni Malinen [Sun, 16 Oct 2022 13:38:27 +0000 (16:38 +0300)]
FT: Authentication request frame processing for FT-SAE-EXT-KEY
Figure out the correct hash algorithm based on which MIC field length
assumption results in successful parsing. This is needed since the key
length is not yet known at this point on the AP when using the new
FT-SAE-EXT-KEY AKM.
Jouni Malinen [Sun, 16 Oct 2022 13:38:27 +0000 (16:38 +0300)]
FT: Extend FTE parsing for FT-SAE-EXT-KEY
Provide AKM, key length, and information about needed subelements to the
parser function so that the variable length MIC field cases can be
recognized for FT-SAE-EXT-KEY. Knowledge about R0KH-ID/R1KH-ID being
needed is required to be able to iterate over possible MIC field lengths
for the case where the AP does not yet know the correct key length at
the beginning of FT protocol.
Add service class id attribute in SCS rule config vendor subcommand
Add service class id attribute
QCA_WLAN_VENDOR_ATTR_SCS_RULE_CONFIG_SERVICE_CLASS_ID in SCS rule
configuration vendor subcommand
QCA_NL80211_VENDOR_SUBCMD_SCS_RULE_CONFIG.
for cases where the switch statement is not expected to contain a full
set of enum values and as such, does not lose value from not having the
default target.
This makes the intent of default behavior clearer for static analyzers like
gcc with -Wswitch-default.
ACS: Filter out 6 GHz channels if HE or EHT is not enabled
Do not include 6 GHz channels in the ACS possible channel list if
neither HE (ieee80211ax=1) nor EHT (ieee80211be=1) is enabled since
those channels cannot be used in such combination.
Android: Delay QCA roam+auth event until NL80211_CMD_ROAM is received
Information from both NL80211_CMD_ROAM and
QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_ROAM_AUTH events is required for
processing the roam events correctly, especially to get the newly
connected BSS details. Indicate the roam event to private libraries only
after NL80211_CMD_ROAM and QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_ROAM_AUTH
events are received.
Override ieee80211w from pmf for AP mode in wpa_supplicant
Since NetworkManager doesn't support setting ieee80211w to
wpa_supplicant and only support pmf, so override ieee80211w from pmf for
AP mode if ieee80211w not configurated. Do not change behavior for the
P2P GO cases.
Jouni Malinen [Fri, 7 Oct 2022 17:59:34 +0000 (20:59 +0300)]
tests: Clear sae_groups when SAE could be used
This makes sigma_dut_ap_dpp_qr* test cases with SAE more robust by
avoiding unexpected behavior. This was found with the following test
sequence:
mesh_sae_anti_clogging sigma_dut_ap_dpp_qr_sae
Jouni Malinen [Fri, 7 Oct 2022 16:54:30 +0000 (19:54 +0300)]
DPP: Require PMF when profile is for SAE without PSK
While the IEEE 802.11 standard does not require MFPR=1, WPA3-Personal
requires PMF to be used with SAE. Use the stronger MFPR=1 configuration
for SAE-without-PSK case, i.e., interpret that as "WPA3-Personal only"
configuration.
Jouni Malinen [Tue, 4 Oct 2022 21:21:12 +0000 (00:21 +0300)]
tests: Clear vendor elements at the end of wpas_ap_vendor_elems
This is needed to avoid surprises in the following test cases. This was
found with a failure in the following test sequence:
wpas_ap_vendor_elems p2p_ext_discovery_go
Jouni Malinen [Tue, 4 Oct 2022 21:17:52 +0000 (00:17 +0300)]
tests: Make sigma_dut_dpp_qr_mutual_resp_enrollee_connector_privacy more robust
Clear the dpp_connector_privacy_default parameter value that sigma_dut
set in wpa_supplicant at the end of the test case to avoid surprising
behavior for the following test cases. This was found with a failure in
the following test sequence:
sigma_dut_dpp_qr_mutual_resp_enrollee_connector_privacy
sigma_dut_dpp_proto_peer_disc_req
wlantest: Use RSNE from MLO Link KDE, if present, for validation
Check the Beacon/Probe Response frame RSNE against the RSNE within the
MLO Link KDE for the current affiliated link instead of RSNE when
processing the EAPOL-Key msg 3/4 Key Data field.