Update the documentation to reflect the ACS algorithm used in the code.
No functionality change.
Signed-off-by: Hari Naraayana Desikan Kannan <quic_hnaraaya@quicinc.com>
While TKIP should not really be used at all anymore and is not allowed
for WPA3 (which is required for Wi-Fi 7), there are some deployed APs
that allow WPA2 PSK to be used with MLO and even allowing WPA+WPA2 mode
with TKIP as the group cipher). IEEE P802.11be/D5.0 does not seem to
explicitly disallow this combination, so handle the MLO GTK KDE key
processing similarly to the way GTK KDE is processed, i.e., including
swapping of Michael MIC Tx and Rx keys for TKIP.
This fixes issues with Michael MIC failures if TKIP is used as a group
cipher for a multi-link association.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
hostapd_cli chan_switch command fails in 2.4 GHz band for HE and EHT
modes if the user does not explicitly specify 'ht' option in the
command.
For example:
"hostapd_cli -i wlan2 chan_switch 10 2412 sec_channel_offset=0 \
center_freq1=2412 bandwidth=20 blocktx he"
Fix this by enabling HT by default if HE is enabled in the 2.4 GHz and 5
GHz bands. Similarly, enable VHT by default when HE is enabled in the 5
GHz band.
Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com>
When the wiphy supports multiple bands and reports different capability
values between 5 GHz and 6 GHz channels, the 6 GHz mesh interface is
unable to correctly map the channel width in function
ibss_mesh_setup_freq(). This issue arises because the modes of 5 GHz and
6 GHz interfaces are the same (HOSTAPD_MODE_IEEE80211A) in supported
modes.
To address this, use function get_mode() to determine the appropriate
mode during mesh setup. This will iterates through all the hw_features
sets and ensures compatibility with the band of the channel supported in
hw_features set.
Signed-off-by: Harshitha Prem <quic_hprem@quicinc.com>
If SSID was not verified during the initial setup of an association, but
beacon protection was negotiated, try verify the SSID based on Beacon
frames that have been received after the first BIGTK has been
configured.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
This is a variant of wpa_bss_get_ie() to allow IEs to be checked from
only Beacon frames similarly to how wpa_bss_get_vendor_ie_beacon()
behaves for vendor specific elements.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
The new "bigtk_set=1" entry in the control interface STATUS command
output indicates that a BIGTK has been successfully configured. This
shows that beacon protection has been enabled for the current
association.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
Add a new "ssid_verified=1" entry into the control interface STATUS
command output if the SSID has been verified for the current
association. This verification may have been done implicitly (e.g., with
SAE H2E and FT protocol binding in the SSID into key derivation or with
FILS protecting the SSID element in the (Re)Association Request frame)
or explicitly with the recently added SSID protection mechanism during
the 4-way handshake.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
On the AP responder side, KDK was derived if the driver advertises
WPA_DRIVER_FLAGS2_SEC_LTF_AP. That is not correct, i.e., this needs to
also depend on the initiator indicating support for this in the RSNXE of
PASN authentication frame 1.
Signed-off-by: Sai Pratyusha Magam <quic_smagam@quicinc.com>
In case the scan request handling fails, exit cleanly, i.e., without
setting internal state such as the 'scan_res_handler' pointer.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
wpa_supplicant will generally never allocate a memory block of that
size. We can therefore assume that it belongs to ASAN and we need to
ignore it.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
The matching code currently only tests whether the prefix of a function
matches. Make this more strict by ensuring that the function name is not
longer.
However, as this breaks some tests (due to inlining), add the ability to
do an explicit prefix match by appending a '*' to the function name. Use
this to change the eap_eke_prf match to eap_eke_prf_* in order to match
one of the actual implementations.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
The functions specified by the user might be longer than the function in
the backtrace, potentially overflowing the memcmp(). In practice, it
should not be a relevant out-of-memory read. However, we can use
strncmp() instead.
Note that, as before, this is only a prefix match. If a function name is
longer in the backtrace it will still match.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
It seems that sha256_prf may not always be in the stack trace for
failure checking, possibly due to tail call optimization as it simply
calls sha256_prf_bits with updated parameters. Simply match against
sha256_prf_bits directly to avoid issues due to optimizations.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
The wpas_p2p_nfc_handover failure test and the more specific
wps_build_nfc_handover_req_p2p were effectively the same as the matching
currently does a prefix match. The code-path tested in these two cases
only hit a single TEST_FAIL macro in openssl_digest_vector.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
The test here is triggering the allocation failure in the static
wpa_config_parse_password() helper. Use this and decrease the count
instead of matching both wpa_config_set_quoted() and wpa_config_set()
and counting down based on that.
This is in preparation to fix the failure function matching to not do a
prefix match.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
The test expects rsn_pmkid_suite_b_192() to fail but specified only
rsn_pmkid_suite_b without the _192 postfix. Add the postfix so that the
function matching can be fixed later.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
If the kck_len is 0 then the pointer may be NULL. If that happens UBSAN
complains about the NULL pointer as memcpy() has the arguments declared
to never be NULL even if the copied number of bytes were zero.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
The consumer of the link_bssid array assumes it is a NULL terminated
array of BSSIDs. As such, add one to the maximum number of links to
ensure that there is always a sentinel value.
Fixes: 5af986c75a ("MLD: Also mark links as failed after association failure")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
When ignoring a link BSSID the multi-link information was parsed out
into a struct ml_sta_link_info on the stack. However, this stack
variable went out of scope before it was used by passing the link_bssids
pointer array to another function.
Fixes: 5af986c75a ("MLD: Also mark links as failed after association failure")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Explicitly free the previously allocated copy if ServiceDiscoveryRequest
or Service DiscvoveryResponse parsing loop finds multiple instances of
the same dict entry.
Signed-off-by: Jouni Malinen <j@w1.fi>
Using D-Bus it is possible to request an invalid SD response where
"tlvs" is specified and there is an unknown key (e.g. "bar": "foo"). In
this case, "tlv" is allocated and then never used nor freed. Valgrind
complains as follows:
36 bytes in 1 blocks are definitely lost in loss record 20 of 74
at 0x484C214: calloc (vg_replace_malloc.c:1675)
by 0x41C673: wpabuf_alloc (wpabuf.c:124)
by 0x41C673: wpabuf_alloc_copy (wpabuf.c:162)
by 0x54FB94: wpas_dbus_handler_p2p_service_sd_res (dbus_new_handlers_p2p.c:3016)
by 0x53B9A2: msg_method_handler (dbus_new_helpers.c:356)
by 0x53B9A2: message_handler (dbus_new_helpers.c:412)
by 0x4EAB4B8: dbus_connection_dispatch (in /usr/lib64/libdbus-1.so.3.19.13)
by 0x5495DF: dispatch_data (dbus_common.c:37)
by 0x5495DF: process_watch (dbus_common.c:73)
by 0x5495DF: process_watch_read (dbus_common.c:89)
by 0x41EE8E: eloop_sock_table_dispatch.part.0 (eloop.c:603)
by 0x41FA46: eloop_sock_table_dispatch (eloop.c:597)
by 0x41FA46: eloop_run (eloop.c:1233)
by 0x56A3EE: wpa_supplicant_run (wpa_supplicant.c:8074)
by 0x40DB06: main (main.c:393)
Fix it ensuring that "tlv" is freed both in the error and non-error path
of wpas_dbus_handler_p2p_service_sd_res(). Also, add a test case in
test_dbus.py to verify correct behavior.
Signed-off-by: Davide Caratti <davide.caratti@gmail.com>
Using D-Bus it is possible to trigger a valid UPnP SD request where
"tlv" is specified: in this case "tlv" is allocated, and then not used
nor freed. Valgrind complains as follows:
72 bytes in 2 blocks are definitely lost in loss record 46 of 68
at 0x484C214: calloc (vg_replace_malloc.c:1675)
by 0x41C673: wpabuf_alloc (wpabuf.c:124)
by 0x41C673: wpabuf_alloc_copy (wpabuf.c:162)
by 0x54F8B5: wpas_dbus_handler_p2p_service_sd_req (dbus_new_handlers_p2p.c:2928)
by 0x53B9A2: msg_method_handler (dbus_new_helpers.c:356)
by 0x53B9A2: message_handler (dbus_new_helpers.c:412)
by 0x4EAB4B8: dbus_connection_dispatch (in /usr/lib64/libdbus-1.so.3.19.13)
by 0x5495DF: dispatch_data (dbus_common.c:37)
by 0x5495DF: process_watch (dbus_common.c:73)
by 0x5495DF: process_watch_read (dbus_common.c:89)
by 0x41EE8E: eloop_sock_table_dispatch.part.0 (eloop.c:603)
by 0x41FA46: eloop_sock_table_dispatch (eloop.c:597)
by 0x41FA46: eloop_run (eloop.c:1233)
by 0x56A3CE: wpa_supplicant_run (wpa_supplicant.c:8074)
by 0x40DB06: main (main.c:393)
Fix it ensuring that "tlv" is freed, both in the error and non-error
path of wpas_dbus_handler_p2p_service_sd_req(). Also, add a test case in
test_dbus.py to verify correct behavior.
Signed-off-by: Davide Caratti <davide.caratti@gmail.com>
Since 0ce1545dcb ("nl80211: Determine maximum number of supported
AKMs") we get the maximum number of supported AKMs from the kernel.
Let's use that instead of the legacy NL80211_MAX_NR_AKM_SUITES when
setting up AP mode operation.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Some deployed STAs that advertise SecureLTF support in the RSNXE in
(Re)Association Request frames, do not derive KDK during PTK generation.
Since the correct key calculations in the AP includes an additional KDK
generation in such cases, this causes different PTK-KCK being derived
and the AP ultimately discarding EAPOL-Key message 2/4 due to MIC
validation failure.
Try to derive a PTK without KDK as a workaround in such cases and allow
the 4-way handshake to continue if this results in a matching MIC.
Signed-off-by: Sai Pratyusha Magam <quic_smagam@quicinc.com>
wpa_s_setup_sae_pt() derived SAE PT even when the configured key
management options did not include SAE if the global sae_pwe
configuration parameter had been changed to enable H2E. This adds
unnecessary extra delay, so derive PT only if SAE is actually enabled in
the network profile.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
Currently color change test is supported only on the first link of the
AP MLD. Extend the support to test on non-first link as well.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
When an HE BSS color event is received from the driver, the event was
delevered to the first link BSS ctx. To support HE BSS color with MLO,
there is a need to identify the correct link for which the event is
intended.
Add link ID parsing support in the event handler and pass the link ID
(if included) down to the event handler so that appropriate link can be
selected.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Almost same logic is there in handling four different commands related
to color collision. Later when link ID needs to be parsed, it would be
more duplicate logic at four different places. Hence refactor and bring
it in a single function.
No functionality changes.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
In function handle_assoc(), ieee802_11_update_beacons() was used to
update the Beacon frames. However, with commit a5d0bb42a2 ("Reduce
delay between Association Request and Association Response"), it was
changed to ieee802_11_set_beacons() which basically overturned what
commit e59d2a31cf ("hostapd: Fix premature beacon set during
association handling") did which is not correct.
Fix this and use ieee802_11_update_beacons() instead of
ieee802_11_set_beacons().
Fixes: a5d0bb42a2 ("Reduce delay between Association Request and Association Response")
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
There is no need to depend on all uses (i.e., both hostapd and
wpa_supplicant) to verify that the length of the Rejected Groups field
in the Rejected Groups element is valid (i.e., a multiple of two octets)
since the common parser can reject the message when detecting this.
Signed-off-by: Jouni Malinen <j@w1.fi>
Instead of practically ignoring an odd octet at the end of the element,
check for such invalid case explicitly. This is needed to avoid a
potential group downgrade attack.
Fixes: 444d76f74f ("SAE: Check that peer's rejected groups are not enabled")
Signed-off-by: Jouni Malinen <j@w1.fi>
The latest Linux kernel is mandating link ID with NL80211_CMD_TDLS_MGMT
for MLO connections. This resulted in not being able to perform TDLS
operations during a multi-link association.
Fix this by sending link ID in NL80211_CMD_TDLS_MGMT when available. If
link ID info is not available, send the link ID of the association link.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
Always check the Message-Authenticator attribute in a received RADIUS
message if it is present. Previously, this would have been skipped if
the attribute was not required to be present.
Signed-off-by: Jouni Malinen <j@w1.fi>
hostapd required Message-Authenticator attribute to be included in EAP
authentication cases, but that requirement was not in place for MAC ACL
cases. Start requiring Message-Authenticator attribute for MAC ACL by
default. Unlike the EAP case, this can still be disabled with
radius_require_message_authenticator=1 to maintain compatibility with
some RADIUS servers when used in a network where the connection to such
a server is secure.
Signed-off-by: Jouni Malinen <j@w1.fi>
Do not allow the exception for missing Message-Authenticator in
Access-Reject without EAP-Message. While such exception is allowed in
RADIUS definition, there is no strong reason to maintain this since
Access-Reject is supposed to include EAP-Message and even if it doesn't,
discarding Access-Reject will result in the connection not completing.
Signed-off-by: Jouni Malinen <j@w1.fi>
Even if this might not be strictly speaking necessary for mitigating
certain RADIUS protocol attacks, be consistent with the RADIUS server
behavior and move the Message-Authenticator attribute to be the first
attribute in the RADIUS DAS responses from hostapd.
Signed-off-by: Jouni Malinen <j@w1.fi>
Even if this is not strictly speaking necessary for mitigating certain
RADIUS protocol attacks, be consistent with the RADIUS server behavior
and move the Message-Authenticator attribute to be the first attribute
in the message from RADIUS client in hostapd.
Signed-off-by: Jouni Malinen <j@w1.fi>
Even if this is not strictly speaking necessary for mitigating certain
RADIUS protocol attacks, be consistent with the RADIUS server behavior
and move the Message-Authenticator attribute to be the first attribute
in the message from RADIUS client.
Signed-off-by: Jouni Malinen <j@w1.fi>
Move the Message-Authenticator attribute to be the first attribute in
the RADIUS messages. This mitigates certain MD5 attacks against
RADIUS/UDP.
Signed-off-by: Jouni Malinen <j@w1.fi>
If a Message-Authenticator attribute was already added to a RADIUS
message, use that attribute instead of adding a new one when finishing
message building. This allows the Message-Authenticator attribute to be
placed as the first attribute in the message.
Signed-off-by: Jouni Malinen <j@w1.fi>
The rejected groups list is valid only during each individual SAE
authentication instance and it should not be maintained between separate
instances. In particular, it should not be maintained when roaming to
another AP since the APs might use different configuration for the
allowed SAE groups.
Signed-off-by: Jouni Malinen <j@w1.fi>
wpa_supplicant used to maintain the list of rejected groups for SAE over
multiple failed attempts. This could have some DoS issues, so clear this
list if SAE authentication attempts fails continuously.
Signed-off-by: Jouni Malinen <j@w1.fi>
When parsing a SAE Commit message, the temporary peer_rejected_groups
parameter was left to its old value in cases where the new SAE Commit
message did not include the Rejected Groups element. This could result
in unexpected behavior if a previously processed SAE Commit message
included a Rejected Groups element that claimed one of the enabled
groups to be rejected.
Explicitly clear the peer_rejected_groups value when parsing an SAE
Commit message without a Rejected Groups element to avoid rejecting the
new message based on some previously received incorrect information.
This avoids some potential denial-of-service issues during the lifetime
of the SAE temporary data.
Signed-off-by: Jouni Malinen <j@w1.fi>
