Commit graph

7598 commits

Author SHA1 Message Date
Noam Shaked
00f6a27628 nl80211: Fix offloaded ACS regression for the 60 GHz band
Addition of chan_2ghz_or_5ghz_to_freq() broke 60 GHz ACS, because it
assumes reported ACS channel is on either 2.4 or 5 GHz band. Fix this
by converting chan_2ghz_or_5ghz_to_freq() to a more generic
chan_to_freq(). The new function uses hw_mode to support 60 GHz.

Fixes: 41cac481a8 ("ACS: Use frequency params in ACS (offload) completed event interface")
Signed-off-by: Noam Shaked <nshaked@codeaurora.org>
2020-03-23 22:29:04 +02:00
John Crispin
1e8ea0833d HE: Add HE support to hostapd_set_freq_params()
The parameters that need to be applied are symmetric to those of VHT,
however the validation code needs to be tweaked to check the HE
capabilities.

Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
2020-03-23 18:08:50 +02:00
Wu Gao
bb08be757f Extend vendor attributes to support enhanced CFR capture
Enhanced channel frequency response supports capturing of channel status
information based on RX. Define previous CFR as version 1 and enhanced
CFR as version 2. If target supports both versions, two versions can't
be enabled at same time. Extend attributes for enhanced CFR capture in
enum qca_wlan_vendor_peer_cfr_capture_attr.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2020-03-23 15:39:36 +02:00
Noam Shaked
30ac8ddaf6 Add QCA vendor attributes for ACS over EDMG (IEEE 802.11ay)
QCA_WLAN_VENDOR_ATTR_ACS_EDMG_ENABLED, conduct ACS for EDMG.
QCA_WLAN_VENDOR_ATTR_ACS_EDMG_CHANNEL, return the EDMG channel.

Signed-off-by: Noam Shaked <nshaked@codeaurora.org>
2020-03-23 13:19:51 +02:00
Jouni Malinen
8b63a58166 Use a shared helper function for RSN supplicant capabilities
Avoid practically copy-pasted code for determining local RSN
capabilities.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-23 11:47:31 +02:00
Alexander Wetzel
b17b7a8e53 STA: Support Extended Key ID
Support Extended Key ID in wpa_supplicant according to
IEEE Std 802.11-2016 for infrastructure (AP) associations.

Extended Key ID allows to rekey pairwise keys without the otherwise
unavoidable MPDU losses on a busy link. The standard is fully backward
compatible, allowing STAs to also connect to APs not supporting it.

Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
2020-03-23 11:47:31 +02:00
Alexander Wetzel
862aac1fcd AP: Support Extended Key ID
Support Extended Key ID in hostapd according to IEEE Std 802.11-2016.

Extended Key ID allows to rekey pairwise keys without the otherwise
unavoidable MPDU losses on a busy link. The standard is fully backward
compatible, allowing an AP to serve STAs with and without Extended Key
ID support in the same BSS.

Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
2020-03-23 11:43:10 +02:00
Jouni Malinen
9f9a148af6 Convert int_array to use size_t instead of int as the length
This extends this to allow longer lists with LP32 data model to avoid
limit of 16-bit int.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-22 18:50:04 +02:00
Jouni Malinen
749add5c64 Limit freq_range_list_parse() result to UINT_MAX entries
This addresses a theoretical integer overflow with configuration
parameters with 16-bit int.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-22 18:50:04 +02:00
Jouni Malinen
2f06008564 loop: Use size_t for eloop.count
This is more consistent with the other eloop registrations and avoids a
theoretical integer overflow with 16-bit int should more than 32767
sockets/signals/events be registered.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-22 18:50:04 +02:00
Jouni Malinen
7858f493f3 eloop: Use size_t for socket table->count
This is more consistent with the other eloop registrations and avoids a
theoretical integer overflow with 16-bit int should more than 32767
sockets be registered (which is not really going to happen in practice).

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-22 18:50:04 +02:00
Jouni Malinen
3f45b8daeb hs20-osu-client: Use size_t for certificate components
This avoids a theoretical integer overflow with 16-bit unsigned int
should a certificate be encoded with more that 65535 friendly names or
icons.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-22 18:50:04 +02:00
Jouni Malinen
913220cbb8 eloop: Use size_t for signal_count
This is more consistent with the other eloop registrations and avoids a
theoretical integer overflow with 16-bit int (not that there would ever
be more that 32767 signal handlers getting registered).

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-22 18:50:04 +02:00
Jouni Malinen
ae7193611f Limit maximum number of pending SA Queries
There is no point in starting a huge number of pending SA Queries, so
limit the number of pending queries to 1000 to have an explicit limit
for how large sa_query_count can grow.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-22 18:50:04 +02:00
Jouni Malinen
02b43c557c RADIUS: Use size_t instead of int for message attributes
While RADIUS messages are limited to 4 kB, use size_t to avoid even a
theoretical overflow issue with 16-bit int.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-22 18:50:04 +02:00
Ouden
7546c489a9 nl80211: Fix RTM NEW/DELLINK IFLA_IFNAME copy for maximum ifname length
If the kernel rtm_newlink or rtm_dellink send the maximum length of
ifname (IFNAMSIZ), the event handlers in
wpa_driver_nl80211_event_rtm_addlink() and
wpa_driver_nl80211_event_rtm_dellink() did not copy the IFLA_IFNAME
value. Because the RTA_PAYLOAD (IFLA_IFNAME) length already includes the
NULL termination, that equals the IFNAMSIZ.

Fix the condition when IFNAME reach maximum size.

Signed-off-by: Ouden <Ouden.Biz@gmail.com>
2020-03-21 17:12:29 +02:00
Sourav Mohapatra
22547c3148 More details to the vendor specific driver internal failure reporting
Add more hang reason codes for the hang reason in the
QCA_NL80211_VENDOR_SUBCMD_HANG events. This also introduces the
attribute QCA_WLAN_VENDOR_ATTR_HANG_REASON_DATA to carry the required
data for the respective hang reason. This data is expected to contain
the required dump to analyze the reason for the hang.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2020-03-21 17:12:29 +02:00
Jouni Malinen
51e8f5d63c Ignore duplicated SSID element when parsing
Some APs have managed to add two SSID elements into Beacon frames and
that used to result in picking the last one which had incorrect data in
the known examples of this misbehavior. Pick the first one to get the
correct SSID.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-21 17:12:29 +02:00
Veerendranath Jakkam
5a296129fc Set beacon protection config irrespective of macro CONFIG_FILS
This was not supposed to be conditional on CONFIG_FILS.

Fixes: ecbf59e693 ("wpa_supplicant configuration for Beacon protection")
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2020-03-21 17:12:29 +02:00
Jouni Malinen
cc79eb725f Check against integer overflow in int_array functions
int_array_concat() and int_array_add_unique() could potentially end up
overflowing the int type variable used to calculate their length. While
this is mostly theoretical for platforms that use 32-bit int, there
might be cases where a 16-bit int overflow could be hit. This could
result in accessing memory outside buffer bounds and potentially a
double free when realloc() ends up freeing the buffer.

All current uses of int_array_add_unique() and most uses of
int_array_concat() are currently limited by the buffer limits for the
local configuration parameter or frame length and as such, cannot hit
this overflow cases. The only case where a long enough int_array could
be generated is the combination of scan_freq values for a scan. The
memory and CPU resource needs for generating an int_array with 2^31
entries would not be realistic to hit in practice, but a device using
LP32 data model with 16-bit int could hit this case.

It is better to have more robust checks even if this could not be
reached in practice, so handle cases where more than INT_MAX entries
would be added to an int_array as memory allocation failures instead of
allowing the overflow case to proceed.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-21 17:12:17 +02:00
Jouni Malinen
a55ecfeabe Allow RSNXE to be removed from Beacon frames for testing purposes
The new hostapd configuration parameter no_beacon_rsnxe=1 can be used to
remove RSNXE from Beacon frames. This can be used to test protection
mechanisms for downgrade attacks.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2020-03-21 00:24:03 +02:00
Jouni Malinen
b7366a942a FT: Omit RSNXE from FT protocol Reassociation Response when needed
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>
2020-03-21 00:01:47 +02:00
Jouni Malinen
6140cca819 FT: Omit RSNXE from FT protocol Reassociation Request when needed
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 Request frame so
that an AP not supporting RSNXE can still validate the FTE MIC
correctly.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2020-03-21 00:01:47 +02:00
Jouni Malinen
35936cd2cf FT: Verify that RSNXE is used consistently in Reassociation Response
Verify that the AP included RSNXE in Beacon/Probe Response frames if it
indicated in FTE that RSNXE is used. This is needed to protect against
downgrade attacks based on the design proposed in 20/332r3.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2020-03-21 00:01:47 +02:00
Jouni Malinen
497ae9f004 FT: Verify that RSNXE is used consistently in Reassociation Request
Verify that the STA includes RSNXE if it indicated in FTE that RSNXE is
used and the AP is also using RSNXE. This is needed to protect against
downgrade attacks based on the design proposed in 20/332r3.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2020-03-20 21:33:02 +02:00
Jouni Malinen
51d1924bd8 FT: Set the new RSNXE Used subfield in FT reassociation
This is a workaround needed to keep FT protocol backwards compatible for
the cases where either the AP or the STA uses RSNXE, but the other one
does not. This commit adds setting of the new field to 1 in
Reassociation Request/Response frame during FT protocol when the STA/AP
uses RSNXE in other frames. This mechanism is described in 20/332r3.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2020-03-20 21:23:48 +02:00
Jouni Malinen
796253a65f nl80211: Debug print set_key() command names
This makes it easier to understand the debug log for various set_key()
operations.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-15 23:42:21 +02:00
Alexander Wetzel
ac22241532 nl80211: Extended Key ID support
Add key configuration parameters needed to support Extended Key ID with
pairwise keys. Add a driver capability flag to indicate support forusing
this.

Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
2020-03-15 23:39:57 +02:00
Jouni Malinen
a1afa2df8a Remove unnecessary and confusing length check from the PMKID KDE case
wpa_parse_kde_ies(), i.e., the only caller to wpa_parse_generic(),
verifies that there is room for KDE Length field and pos[1] (that
length) octets of payload in the Key Data buffer. The PMKID KDE case
within wpa_parse_generic() was doing an unnecessary separate check for
there being room for the Length, OUI, and Data Type fields. This is
covered by the check in the calling function with the combination of
verifying that pos[1] is large enough to contain RSN_SELECTOR_LEN +
PMKID_LEN octets of payload.

This is confusing since no other KDE case was checking remaining full
buffer room within wpa_parse_generic(). Clean this up by removing the
unnecessary check from the PMKID KDE case so that all KDEs are handled
consistently.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-15 23:24:18 +02:00
Alexander Wetzel
094c9cdc7e Add parsing of Key ID KDE for Extended Key ID
wpa_parse_generic() can now recognize the Key ID KDE that will be needed
to deliver the Key ID of the pairwise key when Extended Key ID is used.

Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
2020-03-15 23:17:56 +02:00
Alexander Wetzel
f5c0104f3b Add KEY_FLAG_MODIFY for Extended Key ID support
KEY_FLAG_MODIFY was initial added for the planned Extended Key ID
support with commit a919a26035 ("Introduce and add key_flag") and then
removed with commit 82eaa3e688 ("Remove the not yet needed
KEY_FLAG_MODIFY") to simplify commit e9e69221c1 ("Validity checking
function for key_flag API").

Add it again and update check_key_flag() accordingly.

Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
2020-03-15 23:00:10 +02:00
Jouni Malinen
9e30180a30 nl80211: Allow scanning in wpa_supplicant AP mode
If the driver supports this, request cfg80211 to allow the explicitly
requested scan to go through in AP mode.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-15 21:21:35 +02:00
Jouni Malinen
037e004c16 nl80211: Remove extraneous space from send_mlme debug print
Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-15 17:09:27 +02:00
Jouni Malinen
81fa7730d3 nl80211: Add more TX status details in debug log in AP mode
The actual TX status (whether ACK frame was received) was not included
in the debug log in AP mode. Add that for all cases. In addition, add
some more details in the debug log to make the log more helpful in
debugging issues related to frame delivery.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-15 17:06:35 +02:00
Jouni Malinen
46e147fcdc Allow RSNE/RSNXE to be replaced in FT protocol Reassocation Response frame
This can be used to test station side behavior for FT protocol
validation steps.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-15 10:39:17 +02:00
Jouni Malinen
1a8e9334c0 FT: Check RSNE/RSNXE match in FT protocol Reassociation Response frame
While 13.7.1 (FT reassociation in an RSN) in P802.11-REVmd/D3.0 did not
explicitly require this to be done, this is implied when describing the
contents of the fourth message in the FT authentication sequence (see
13.8.5). Furthermore, 20/332r2 is proposing an explicit validation step
to be added into 13.7.1.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-15 10:39:17 +02:00
Jouni Malinen
839bab785b nl80211: Debug print driver capabilities
This can be helpful in understanding driver behavior.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2020-03-13 20:03:14 +02:00
Hrishikesh Vidwans
d9a7b71a78 AP: Fix regression in frequency check for a usable EDMG channel
Commit 5f9b4afd ("Use frequency in HT/VHT validation steps done before
starting AP") modified hostapd_is_usable_edmg() to use freq instead of
channel numbers. Unfortunately, it did not convert the frequency
calculation correctly and this broke EDMG functionality.

Fix the frequency calculation so that EDMG channel 9 works again.

Fixes: 5f9b4afdfa ("Use frequency in HT/VHT validation steps done before starting AP")
Signed-off-by: Hrishikesh Vidwans <hvidwans@codeaurora.org>
2020-03-11 17:54:13 +02:00
Jouni Malinen
10223b501b SAE: Expose sae_write_commit() error cases to callers
Check whether an error is reported from any of the functions that could
in theory fail and if so, do not proceed with the partially filled SAE
commit buffer.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-08 16:59:42 +02:00
Jouni Malinen
7f1f69e897 SAE: Check hmac_sha256() result in sae_token_hash()
In theory, hmac_sha256() might fail, so check for that possibility
instead of continuing with undetermined index value that could point to
an arbitrary token entry.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-08 16:51:30 +02:00
Jouni Malinen
b0927e5d06 nl80211: Fix error print for hapd_send_eapol()
The return value from nl80211_send_monitor() is not suitable for use
with strerror(). Furthermore, nl80211_send_monitor() itself is printing
out a more detailed error reason.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-08 16:48:00 +02:00
Jouni Malinen
a17cbcd698 os_unix: Call srandom() only if os_get_random() succeeds
Don't use uninitialized stack memory if /dev/urandom is not available.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-08 16:43:09 +02:00
Jouni Malinen
17ba51b14d nl80211: Fix tx_control_port error print
send_and_recv_msgs() returns a negative number as the error code and
that needs to be negated for strerror().

Fixes: 8759e9116a ("nl80211: Control port over nl80211 helpers")
Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-08 16:38:57 +02:00
Jouni Malinen
bb2ea8e5e3 DPP: Remove unreachable return statement
This was forgotten from an earlier development version.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-08 16:35:45 +02:00
Jouni Malinen
7dcc5f7feb SAE: Check sta pointer more consistently in testing code
send_auth_reply() could be called with sta == NULL in certain error
conditions. While that is not applicable for this special test
functionality for SAE, the inconsistent checks for the sta pointer could
result in warnings from static analyzers. Address this by explicitly
checking the sta pointer here.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-08 16:32:47 +02:00
Jouni Malinen
15d63c6043 Clean up hostapd_get_he_twt_responder() processing
mode->he_capab is an array and as such, there is no point in checking
whether it is NULL since that cannot be the case. Check for the
he_supported flag instead. In addition, convert the TWT responder
capability bit into a fixed value 1 to avoid any surprising to the
callers. In practice, neither of these changes results in different
behavior in the current implementation, but this is more robust.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-08 16:28:03 +02:00
Jouni Malinen
7aa47fe5fc DPP: Fix connectorTemplate addition
There was a copy-paste error in this code that would be adding the
connectorTemplate once that becomes available. In practice, this was not
reachable code, but anyway, this should be ready for potential addition
of connectorTemplate in the future.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-08 16:18:22 +02:00
Jouni Malinen
c7d293024b RSN: Stop 4-way handshake if scan results are not available
While there may have initially been cases where the RSNE from
Beacon/Probe Response frames was not available from some drivers, it is
now more valuable to notice if such a case were to be hit with drivers
that are always expected to have such information available. As such,
make it a fatal error if the scan results for the current AP are not
available to check the RSNE/RSNXE in EAPOL-Key msg 3/4.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-08 16:16:11 +02:00
Jouni Malinen
785f99b680 FT: Silence debug prints when FT is not actually used
Avoid printing confusing FT debug entries from wpa_sm_set_ft_params()
when FT is not actually used for the connection.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-07 17:43:27 +02:00
Jouni Malinen
33a28170a3 Recognize OWE Transition Mode element in IE parser
This silences the debug log entry on unknown WFA IE being ignored.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-07 17:27:32 +02:00