Processing of WNM frames can results in a lookup of the current BSS
table. As such, the testing tool needs to initialize the BSS table to
avoid NULL pointer dereferences. This is not an issue that would show up
with real production uses with wpa_supplicant since wpa_bss_init() is
called there.
Credit to OSS-Fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=67244
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
The commit that renamed the WNM BTM deallocation function forgot to
update the fuzz tester tool.
Fixes: e508c070c4 ("WNM: Keep BTM information until connection completes")
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
The wpa_supplicant implementation for building the Supported Operating
Classes element was modified to add support for 80 MHz and wider
bandwidth on the 6 GHz band, 2-octet operating classes, and freq_list on
the 6 GHz band. Update the test cases that verify exact encoding of this
information to match the implementation changes.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
Only the 2.4 and 5 GHz channels were handled previously when removing
operating classes from the Supported Operating Classes element based on
the freq_list parameter. Extend this to include the 6 GHz band as well.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
A previous workaround was used to move the special operating class 130
to the end of the Supported Operating Classes element to avoid getting
any following entry being ignored or misunderstood. That is not really
the correct way of encoding the special cases, i.e., 80+80 MHz channels
that use two nonadjacent frequency segments.
Add support for encoding the 80+80 MHz channel with the 2-octet
operating class design using the Operating Class Duple sequence field of
the Supported Operating Classes element instead of listing the operating
classes that have the 80+ behavior limit set indication in Table E-4
(i.e., opclass 130 and 135) as 1-octet operating classes in the
Operating Classes field.
Fixes: a92660a00e ("Work around Supported Operating Classes element issues for 6 GHz")
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
Commit 085a3fc76e ("EHT: Add 320 channel width support") added this in
various places, but it did not cover everything. Extend this support to
be more complete. In particular, this allows wpa_supplicant to report
the operating class 137 in the Supported Operating Classes element and
to use it when processing beacon requests.
Signed-off-by: Ainy Kumari <quic_ainykuma@quicinc.com>
short_ssid in the own neighbor report might get out of sync, causing
advertising RNR element based on the old SSID, when SSID is changed
either with control interface command SET or with SIGHUP. Therefore,
sync the own report entry by removing the old entry and setting own
report again if the short SSID value has changed.
Signed-off-by: Nikita Chernikov <nchernikov@maxlinear.com>
Once the non-AP MLD is added to the driver, the driver handles the
address translation so that hostapd receives Management frames with
SA/DA being translated into MLD MAC addresses.
If the Authentication frmae is retransmitted with transaction being 1,
SA of the retransmitted Authentication frame is translated into the MLD
MAC address by the driver, and then in the function handle_auth(),
sta->mld_info.links[].peer_addr would be replaced by the MLD MAC address
even though it is supposed to be the link address.
Therefore, update the MLD information only when the STA has not yet been
added into the driver to avoid replacing the previously determined link
address with the MLD MAC address.
Fixes: bcbe80a66 ("AP: MLO: Handle Multi-Link element during authentication")
Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com>
reply_size instead sizeof(buffer) should be provided to
hostapd_global_ctrl_iface_interfaces() when processing INTERFACES
commands. The previous use of sizeof(buffer) used a significantly
shorter limit (256 vs. 4096 bytes) for the output and this could have
resulted in unnecessary truncation of the output.
Fixes: 618f5d01b0 ("hostapd: Add INTERFACES ctrl_iface command")
Signed-Off-By : Mujibur Rahiman K mujiburrahimank@maxlinear.com
In theory, os_snprintf() could return a negative value and as such,
os_snprintf_error() should be used in all cases where the buffer might
not be large enough.
Signed-off-by: Jouni Malinen <j@w1.fi>
The INT_RANGE() cases for wpa_supplicant global and network profile
parameters ended up changing the configured value to the minimum value
if the provided value was too small or to the maximum value if the
provided value was too large. This does not seem most logical. Change
this to not change the configured value at all if the provided value is
outside the valid range.
Signed-off-by: Jouni Malinen <j@w1.fi>
It looks like this test case can fail in some cases. Add more debug info
and event wait that might help with a race condition.
Signed-off-by: Jouni Malinen <j@w1.fi>
It looks like the 30 second timeout, i.e., 25 second to discover and
receive GO Negotiation Request, was not sufficient for all cases.
Signed-off-by: Jouni Malinen <j@w1.fi>
These parameters have both a separate SET command handler and a global
configuration parameter handler. Only the global configuration parameter
handler for enforcing valid range checking. Do that for the SET command
as well.
Signed-off-by: Jouni Malinen <j@w1.fi>
The following config file contains invalid items:
----
filter_rssi=1234 # should be rejected
network={
mode=-1 # should be rejected
ssid="ssid"
psk="password"
}
----
But it is accepted by the config parser. The issue is due to using NULL
to represent no limit. If a boundary is set to 0, it's disregarded.
Fix this.
Note that string parser is not affected as length cannot be negative and
we are not limiting any string to be always empty.
Signed-off-by: Chien Wong <m@xv97.com>
Use of wpa_s->p2p_go_no_pri_sec_switch needs to be conditional on
CONFIG_P2P being defined for the build to avoid a compilation error and
ssid->p2p_group to avoid using this for non-P2P AP mode case in
wpa_supplicant. Furthermore, it is better to clear this flag when
stopping a P2P GO to reduce risk of this getting used for a separate
instance of starting a GO.
Fixes: b18d957593 ("P2P: Disable pri/sec channel switch for GO with forced frequency")
Signed-off-by: Jouni Malinen <j@w1.fi>
In the MLD case, the information from the transition management request
is relevant during the association process in order to filter out links
that were disallowed by the BTM request. Also, the information remains
useful should a connection attempt fail.
To enable these scenarios, keep the information around until the
connection has completed. As this might make it impossible to establish
a connection, also clear this information at the same time that a normal
BSS ignore is cleared to avoid getting stuck in case the transition
fails unexpectedly.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
If the last link is dropped, it makes sense to follow the BTM procedure.
However, in that case we need to prevent reconnection to this link
specifically, while if the AP MLD is terminating we need to forbid
connecting to the AP MLD.
As such, add a new variable to track the BSSID or AP MLD MAC address.
Which one it refers to depends on whether wnm_link_removal is set.
This also simplifies the check in wnm_is_bss_excluded() and untangles it
from wpa_s->current_bss.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
All callers of wnm_send_bss_transition_mgmt_resp() are explicitly
passing wpa_s->wnm_dialog_token. As such, we might as well not pass it
and use the variable directly.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
There is no point in the caller to set it to zero. Just do so within
wnm_send_bss_transition_mgmt_resp().
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
The elements are (currently) not used except for sending an immediate
response similar to COLOC_INTF_REPORT with the main difference being
that the dialog token is included.
Do not store the elements. It easy enough to re-add this should the
implementation improve. And this fixes the fact that the variable is
cleared at odd times as wnm_deallocate_memory() is used specifically to
clear the neighbor report list of a BTM request.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
There is no need for this check as wpa_scan_res_match() already calls
the function through wpa_scan_res_ok() before accepting a match.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
The call to wpa_scan_res_match already checks that the SSID matches
current_ssid. Therefore there is no need to do any further checking.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
It should never be NULL. In the unlikely event that it is NULL, the
logic changes slightly to reject all candidates.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
When accepting a BSS transition request there is a race between
sending the response and roaming to the target AP. As a result,
the response may not be sent because the station deauthenticated
from the AP before the response was actually sent.
To make sure the BSS transition response is sent, start roaming only
after the TX status is received for the BSS transition response.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
It does not make sense to scan for neighbors that we are not supposed to
use anyway. As such, skip them.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
When receiving a BTM request, wpa_supplicant would try to fetch new
results from the driver, and, independently of that, would also process
the latest scan results that were partially updated by the previous
fetch.
Simplify the logic by using wpa_supplicant_get_scan_results() directly
and then process the old scan data as usual. However, this data may be
outdated, so add a new heuristic to avoid roaming to a BSS if it is
either outdated or bad.
Doing this moves all scan data processing into wnm_scan_process() and
removes duplicated functionality for scan result processing in scan.c.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Avoid potential race conditions with the driver operations between
stopping an ongoing wait for responses for an offchannel TX that was
used to send Authentication Request with a request to use a different
channel for Authentication Response and the start of a new ROC on the
other channel by waiting for the TX expiration event before issuing the
ROC request.
Signed-off-by: Jouni Malinen <j@w1.fi>
The event indicating expiration of an offchannel TX is useful for cases
where the wait is for a frame that was explicitly requested to have the
pending cookie to be saved.
Signed-off-by: Jouni Malinen <j@w1.fi>
Avoid potential race conditions with the driver operations between
cancelling an ongoing ROC that was used to receive Authentication
Request that requested a different channel to be used for the
negotiation by waiting for the ROC cancelled event before issuing the
offchannel TX command for the Authentication Response.
In addition, speed up the retry on Authentication Response in this type
of a case if the first attempt on the other channel is not AKC'ed since
it might take the peer device a bit more time to be ready to listen
there.
Signed-off-by: Jouni Malinen <j@w1.fi>
This aligns both the wpa_supplicant and bss structures to use the same
pattern of a valid_links bitmask plus per-link entries.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Most places in the codebase use a valid_links bitmask with an array.
Switch the bss->links array to use the same design with the Link ID
being used as the array index instead of having a link_id inside.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
This was done using the below semantic patch. There are a few more
places that were missed due to variable declarations or additional
checks in the for loop.
@@
iterator name for_each_link;
identifier max_links =~ "MAX_NUM_MLD_LINKS|MAX_NUM_MLO_LINKS";
expression links;
expression further_tests;
identifier i;
statement stmt;
@@
-for (i = 0; i < max_links; i++)
+for_each_link(links, i)
{
(
- if (!(links & BIT(i)))
- continue;
...
|
- if (!(links & BIT(i)) || further_tests)
+ if (further_tests)
continue;
...
|
- if (further_tests || !(links & BIT(i)))
+ if (further_tests)
continue;
...
|
- if (links & BIT(i))
stmt
|
- if (further_tests && (links & BIT(i)))
+ if (further_tests)
stmt
|
- if ((links & BIT(i)) && further_tests)
+ if (further_tests)
stmt
)
}
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
This is a simple macro iterating the given bitmask using the given
variable. Having the macro avoids the for loop-continuation making it
more readable overall.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
In some places the wrong index variable was used to access the link
configuration. Fix this by simply using link_id instead of i.
With this, the i loop variable is not needed anymore. We can simply
always pass 0 to nla_nest_start(). Also, the kernel does not care about
the order that the links are provides, so just remove the special
handling for the association link.
Fixes: a2c4c0b1b6 ("nl80211: Support MLD association request")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
When a device supports both the 5 GHz band and the 6 GHz band,
these are reported as two separate modes, both with mode set to
HOSTAPD_MODE_IEEE80211A. However, as these are different modes,
each with its own characteristics, e.g., rates, capabilities etc.,
specifically differentiate between them by adding a flag to indicate
whether the mode describes a 6 GHz band capabilities or not.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
When wpa_supplicant assigns the IP address (WFA EAPOL IP address
allocation feature), the assigned IP address of the P2P Client on the GO
side is notified in the AP-STA-CONNECTED event. So to obtain the IP info
to external programs, modify the STA authorized event to include the the
assigned IP address of the P2P Client.
Test: Establish P2P connection and verified from the logs that
the P2P Client IP address is notified.
Signed-off-by: Sunil Ravi <sunilravi@google.com>
When wpa_supplicant receives a request to start a P2P group owner on a
fixed frequency with bandwidth wider than 20 MHz, wpa_supplicant scans
for neighboring BSSs prior to starting the GO. This is done to switch
the primary/secondary channels if there are any other networks which are
operating on the same secondary channel. Though this logic is defined
for 20/40 MHz coexistence and might improve throughput, there are P2P
use cases where this logic causes problem:
1. The file transfer use case takes time to start the file transfer or
even fails when the 20/40 coex scan repeatedly fails due to an
ongoing externally triggered scan happening in the system.
2. wpa_supplicant overrides the channel which is selected by the
application based on the best channel it derived by looking into
the channel conditions. This degrades the expected throughput.
3. Latency sensitive applications experience long time to
start the group owner which gives a bad user experience.
So do not allow 40 MHz co-ex PRI/SEC switch to force a change to
Autonomous GO PRI channel when the P2P group add is called with a forced
frequency.
Test: Tested autonomous GO and confirmed from the logs that
P2P GO is not triggering 20/40 coex scan.
Signed-off-by: Sunil Ravi <sunilravi@google.com>
