The file for the new certificate (Chen-Yu Tsai's) didn't
end with a comma, so depending on the file order in the
build rule, we'd end up with invalid C when concatenating
the (now two) certificates. Fix that.
Cc: stable@vger.kernel.org
Reported-by: Biju Das <biju.das.jz@bp.renesas.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Fixes: fb768d3b13 ("wifi: cfg80211: Add my certificate")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add wrappers for debugfs files that should be called with
the wiphy mutex held, while the file is also to be removed
under the wiphy mutex. This could otherwise deadlock when
a file is trying to acquire the wiphy mutex while the code
removing it holds the mutex but waits for the removal.
This actually works by pushing the execution of the read
or write handler to a wiphy work that can be cancelled
using the debugfs cancellation API.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Given all the locking rework in mac80211, we pretty much
need to get into the driver with the wiphy mutex held in
all callbacks. This is already mostly the case, but as
Johan reported, in the get_txpower it may not be true.
Lock the wiphy mutex around nl80211_send_iface(), then
is also around callers of nl80211_notify_iface(). This
is easy to do, fixes the problem, and aligns the locking
between various calls to it in different parts of the
code of cfg80211.
Fixes: 0e8185ce1d ("wifi: mac80211: check wiphy mutex in ops")
Reported-by: Johan Hovold <johan@kernel.org>
Closes: https://lore.kernel.org/r/ZVOXX6qg4vXEx8dX@hovoldconsulting.com
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
We want to guarantee the mutex is held for pretty much
all operations, so ensure that here as well.
Reported-by: syzbot+7e59a5bfc7a897247e18@syzkaller.appspotmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
My prior race fix here broke CQM when ranges aren't used, as
the reporting worker now requires the cqm_config to be set in
the wdev, but isn't set when there's no range configured.
Rather than continuing to special-case the range version, set
the cqm_config always and configure accordingly, also tracking
if range was used or not to be able to clear the configuration
appropriately with the same API, which was actually not right
if both were implemented by a driver for some reason, as is
the case with mac80211 (though there the implementations are
equivalent so it doesn't matter.)
Also, the original multiple-RSSI commit lost checking for the
callback, so might have potentially crashed if a driver had
neither implementation, and userspace tried to use it despite
not being advertised as supported.
Cc: stable@vger.kernel.org
Fixes: 4a4b816950 ("cfg80211: Accept multiple RSSI thresholds for CQM")
Fixes: 37c20b2eff ("wifi: cfg80211: fix cqm_config access race")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The third, and most likely the last, features pull request for v6.7.
Fixes all over and only few small new features.
Major changes:
iwlwifi
* more Multi-Link Operation (MLO) work
ath12k
* QCN9274: mesh support
ath11k
* firmware-2.bin container file format support
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Merge tag 'wireless-next-2023-10-26' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Kalle Valo says:
====================
wireless-next patches for v6.7
The third, and most likely the last, features pull request for v6.7.
Fixes all over and only few small new features.
Major changes:
iwlwifi
- more Multi-Link Operation (MLO) work
ath12k
- QCN9274: mesh support
ath11k
- firmware-2.bin container file format support
* tag 'wireless-next-2023-10-26' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (155 commits)
wifi: ray_cs: Remove unnecessary (void*) conversions
Revert "wifi: ath11k: call ath11k_mac_fils_discovery() without condition"
wifi: ath12k: Introduce and use ath12k_sta_to_arsta()
wifi: ath12k: fix htt mlo-offset event locking
wifi: ath12k: fix dfs-radar and temperature event locking
wifi: ath11k: fix gtk offload status event locking
wifi: ath11k: fix htt pktlog locking
wifi: ath11k: fix dfs radar event locking
wifi: ath11k: fix temperature event locking
wifi: ath12k: rename the sc naming convention to ab
wifi: ath12k: rename the wmi_sc naming convention to wmi_ab
wifi: ath11k: add firmware-2.bin support
wifi: ath11k: qmi: refactor ath11k_qmi_m3_load()
wifi: rtw89: cleanup firmware elements parsing
wifi: rt2x00: rework MT7620 PA/LNA RF calibration
wifi: rt2x00: rework MT7620 channel config function
wifi: rt2x00: improve MT7620 register initialization
MAINTAINERS: wifi: rt2x00: drop Helmut Schaa
wifi: wlcore: main: replace deprecated strncpy with strscpy
wifi: wlcore: boot: replace deprecated strncpy with strscpy
...
====================
Link: https://lore.kernel.org/r/20231026090411.B2426C433CB@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
struct nla_policy is usually constant itself, but unless
we make the ranges inside constant we won't be able to
make range structs const. The ranges are not modified
by the core.
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20231025162204.132528-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The warning here shouldn't be done before we even set the
bss field (or should've used the input data). Move the
assignment before the warning to fix it.
We noticed this now because of Wen's bugfix, where the bug
fixed there had previously hidden this other bug.
Fixes: 53ad07e982 ("wifi: cfg80211: support reporting failed links")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Confusing struct member names here resulted in passing
the wrong pointer, causing crashes. Pass the correct one.
Fixes: eb142608e2 ("wifi: cfg80211: use a struct for inform_single_bss data")
Signed-off-by: Ben Greear <greearb@candelatech.com>
Link: https://lore.kernel.org/r/20231021154827.1142734-1-greearb@candelatech.com
[rewrite commit message, add fixes]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In 4way handshake offload, cfg80211_port_authorized enables driver
to indicate successful 4way handshake to cfg80211 layer. Currently
this path of port authorization is restricted to interface type
NL80211_IFTYPE_STATION and NL80211_IFTYPE_P2P_CLIENT. This patch
extends the support for NL80211_IFTYPE_AP and NL80211_IFTYPE_P2P_GO
interfaces to authorize peer STA/P2P_CLIENT, whenever authentication
is offloaded on the AP/P2P_GO interface.
Signed-off-by: Vinayak Yadawad <vinayak.yadawad@broadcom.com>
Link: https://lore.kernel.org/r/dee3b0a2b4f617e932c90bff4504a89389273632.1695721435.git.vinayak.yadawad@broadcom.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
make htmldocs warns:
Documentation/driver-api/80211/cfg80211:48: ./include/net/cfg80211.h:7290: WARNING: Duplicate C declaration, also defined at cfg80211:7251.
Declaration is '.. c:function:: void cfg80211_rx_assoc_resp (struct net_device *dev, struct cfg80211_rx_assoc_resp *data)'.
This is because there's a function named cfg80211_rx_assoc_resp() and a struct
named cfg80211_rx_assoc_resp, see previous patch for more info.
To workaround this rename the struct to cfg80211_rx_assoc_resp_data. The
parameter for the function is named 'data' anyway so the naming here is
consistent.
Compile tested only.
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20231012114229.2931808-3-kvalo@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Since I'm getting a warning here right now, fix the
kernel-doc to be "Returns:" rather than just writing
that out in the doc paragraph.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230928172905.ab3b9274bf07.If263f9f6726d6ad4661f8603e6a4485e0385d67f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When the scan parameters for a 6GHz scan specify a unicast
BSSID address, and the corresponding AP is found in the scan
list, add a corresponding entry in the collocated AP list,
so this AP would be directly probed even if it was not
advertised as a collocated AP.
This is needed for handling a scan request that is intended
for a ML probe flow, where user space can requests a scan
to retrieve information for other links in the AP MLD.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230928172905.54b954bc02ad.I1c072793d3d77a4c8fbbc64b4db5cce1bbb00382@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Draft P802.11be_D3.1 added operating class to describe 320 MHz
operation in the 6GHz band. Include this new operating class in
ieee80211_operating_class_to_band().
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230928172905.bed4a007d81b.I3eb4b8fe39c0c1a988c98a103b11a9f45a92b038@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Since wiphy work items can run pretty much arbitrary
code in the stack/driver, it can take longer to run
all of this, so we shouldn't be using system_wq via
schedule_work(). Also, we lock the wiphy (which is
the reason this exists), so use system_unbound_wq.
Reported-and-tested-by: Kalle Valo <kvalo@kernel.org>
Fixes: a3ee4dc84c ("wifi: cfg80211: add a work abstraction with special semantics")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Resolve several conflicts, mostly between changes/fixes in
wireless and the locking rework in wireless-next. One of
the conflicts actually shows a bug in wireless that we'll
want to fix separately.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
If the structure is not initialized then boolean types might be copied
into the tracing data without being initialised. This causes data from
the stack to leak into the trace and also triggers a UBSAN failure which
can easily be avoided here.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://lore.kernel.org/r/20230925171855.a9271ef53b05.I8180bae663984c91a3e036b87f36a640ba409817@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When one of the links (other than the assoc_link) is misconfigured
and cannot work the association will fail. However, userspace was not
able to tell that the operation only failed because of a problem with
one of the links. Fix this, by allowing the driver to set a per-link
error code and reporting the (first) offending link by setting the
bad_attr accordingly.
This only allows us to report the first error, but that is sufficient
for userspace to e.g. remove the offending link and retry.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230920211508.ebe63c0bd513.I40799998f02bf987acee1501a2522dc98bb6eb5a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Using the full struct cfg80211_ap_settings for an update is
misleading, since most settings cannot be updated. Split the
update case off into a new struct cfg80211_ap_update.
Change-Id: I3ba4dd9280938ab41252f145227a7005edf327e4
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When the scan request includes a non broadcast BSSID, when adding the
scan parameters for 6GHz collocated scanning, do not include entries
that do not match the given BSSID.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230918140607.6d31d2a96baf.I6c4e3e3075d1d1878ee41f45190fdc6b86f18708@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
6 GHz regulatory domains introduces Power Spectral Density (PSD).
The PSD value of the regulatory rule should be taken into effect
for the ieee80211_channels falling into that particular regulatory
rule. Save the values in the channel which has PSD value and add
nl80211 attributes accordingly to handle it.
Co-developed-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Link: https://lore.kernel.org/r/20230914082026.3709-1-quic_wgong@quicinc.com
[use hole in chan flags, reword docs]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
cfg80211 has cfg80211_chandef_dfs_usable() function to know whether
at least one channel in the chandef is in usable state or not. Also,
cfg80211_chandef_dfs_cac_time() function is there which tells the CAC
time required for the given chandef.
Make these two functions visible to drivers by exporting their symbol
to global list of kernel symbols.
Lower level drivers can make use of these two functions to be aware
if CAC is required on the given chandef and for how long. For example
drivers which maintains the CAC state internally can make use of these.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20230912051857.2284-2-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Currently the channel property updates are not propagated to
driver. This causes issues in the discovery of hidden SSIDs and
fails to connect to them.
This change defines a new wiphy flag which when enabled by vendor
driver, the reg_call_notifier callback will be trigger on beacon
hints. This ensures that the channel property changes are visible
to the vendor driver. The vendor changes the channels for active
scans. This fixes the discovery issue of hidden SSID.
Signed-off-by: Abhishek Kumar <kuabhs@chromium.org>
Link: https://lore.kernel.org/r/20230629035254.1.I059fe585f9f9e896c2d51028ef804d197c8c009e@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Currently regulatory update by driver is not allowed when the
wiphy->regd is already set and drivers_request->intersect is false.
During wiphy registration, some drivers (ath10k does this currently)
first register the world regulatory to cfg80211 using
wiphy_apply_custom_regulatory(). The driver then obtain the current
operating country and tries to update the correct regulatory to
cfg80211 using regulatory_hint().
But at this point, wiphy->regd is already set to world regulatory.
Also, since this is the first request from driver after the world
regulatory is set this will result in drivers_request->intersect
set to false. In this condition the driver request regulatory is not
allowed to update to cfg80211 in reg_set_rd_driver(). This restricts
the device operation to the world regulatory.
This driver request to update the regulatory with current operating
country is valid and should be updated to cfg80211. Hence allow
regulatory update by driver even if the wiphy->regd is already set
and driver_request->intersect is false.
Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag@quicinc.com>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20230421061312.13722-1-quic_rajkbhag@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
FILS discovery and unsolicited broadcast probe response templates
need to be updated along with beacon templates in some cases such as
the channel switch operation. Add the missing implementation.
Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20230727174100.11721-5-quic_alokad@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Modify the prototype for change_beacon() in struct cfg80211_op to
accept cfg80211_ap_settings instead of cfg80211_beacon_data so that
it can process data in addition to beacons.
Modify the prototypes of ieee80211_change_beacon() and driver specific
functions accordingly.
Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20230727174100.11721-4-quic_alokad@quicinc.com
[while at it, remove pointless "if (info)" check in tracing that just
makes all the lines longer than they need be - it's never NULL]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add a new flag 'update' which is set to true during start_ap()
if (and only if) one of the following two conditions are met:
- Userspace passed an empty nested attribute which indicates that
the feature should be disabled and templates deleted.
- Userspace passed all the parameters for the nested attribute.
Existing configuration will not be changed while the flag
remains false.
Add similar changes for unsolicited broadcast probe response
transmission.
Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20230727174100.11721-2-quic_alokad@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
clang with W=1 reports
net/wireless/lib80211_crypt_tkip.c:667:7: error: variable 'iv32'
set but not used [-Werror,-Wunused-but-set-variable]
u32 iv32 = tkey->tx_iv32;
^
This variable not used so remove it.
Then remove a similar iv16 variable.
Change the comment because the unmodified value is returned.
Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230517123310.873023-1-trix@redhat.com
[change commit log wrt. 'length', add comment in the code]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There really isn't any support for scanning at different
channel widths than 20 MHz since there's no way to set it.
Remove this support for now, if somebody wants to maintain
this whole thing later we can revisit how it should work.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Since 'sprintf()' returns the number of characters emitted, an
extra calls to 'strlen()' in 'ieee80211_bss()' may be dropped.
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Link: https://lore.kernel.org/r/20230912035522.15947-1-dmantipov@yandex.ru
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Max Schulze reports crashes with brcmfmac. The reason seems
to be a race between userspace removing the CQM config and
the driver calling cfg80211_cqm_rssi_notify(), where if the
data is freed while cfg80211_cqm_rssi_notify() runs it will
crash since it assumes wdev->cqm_config is set. This can't
be fixed with a simple non-NULL check since there's nothing
we can do for locking easily, so use RCU instead to protect
the pointer, but that requires pulling the updates out into
an asynchronous worker so they can sleep and call back into
the driver.
Since we need to change the free anyway, also change it to
go back to the old settings if changing the settings fails.
Reported-and-tested-by: Max Schulze <max.schulze@online.de>
Closes: https://lore.kernel.org/r/ac96309a-8d8d-4435-36e6-6d152eb31876@online.de
Fixes: 4a4b816950 ("cfg80211: Accept multiple RSSI thresholds for CQM")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Many regulatories can have HE/EHT Operation as not permitted. In such
cases, AP should not be allowed to start if it is using a channel
having the no operation flag set. However, currently there is no such
check in place.
Fix this issue by validating such IEs sent during start AP against the
channel flags.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20230905064857.1503-1-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When connect to MLO AP with more than one link, and the assoc response of
AP is not success, then cfg80211_unhold_bss() is not called for all the
links' cfg80211_bss except the primary link which means the link used by
the latest successful association request. Thus the hold value of the
cfg80211_bss is not reset to 0 after the assoc fail, and then the
__cfg80211_unlink_bss() will not be called for the cfg80211_bss by
__cfg80211_bss_expire().
Then the AP always looks exist even the AP is shutdown or reconfigured
to another type, then it will lead error while connecting it again.
The detail info are as below.
When connect with muti-links AP, cfg80211_hold_bss() is called by
cfg80211_mlme_assoc() for each cfg80211_bss of all the links. When
assoc response from AP is not success(such as status_code==1), the
ieee80211_link_data of non-primary link(sdata->link[link_id]) is NULL
because ieee80211_assoc_success()->ieee80211_vif_update_links() is
not called for the links.
Then struct cfg80211_rx_assoc_resp resp in cfg80211_rx_assoc_resp() and
struct cfg80211_connect_resp_params cr in __cfg80211_connect_result()
will only have the data of the primary link, and finally function
cfg80211_connect_result_release_bsses() only call cfg80211_unhold_bss()
for the primary link. Then cfg80211_bss of the other links will never free
because its hold is always > 0 now.
Hence assign value for the bss and status from assoc_data since it is
valid for this case. Also assign value of addr from assoc_data when the
link is NULL because the addrs of assoc_data and link both represent the
local link addr and they are same value for success connection.
Fixes: 81151ce462 ("wifi: mac80211: support MLO authentication/association with one link")
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Link: https://lore.kernel.org/r/20230825070055.28164-1-quic_wgong@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There were are a number of cases in mac80211 and iwlwifi (at
least) that used the sband->iftype_data pointer directly,
instead of using the accessors to find the right array entry
to use.
Make sparse warn when such a thing is done.
To not have a lot of casts, add two helper functions/macros
- ieee80211_set_sband_iftype_data()
- for_each_sband_iftype_data()
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Since we're now protecting everything with the wiphy mutex
(and were really using it for almost everything before),
there's no longer any real reason to have a separate wdev
mutex. It may feel better, but really has no value.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This might seem pretty pointless rather than changing the locking
immediately, but it seems safer to run for a while with checks and
the old locking scheme, and then remove the wdev lock later.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
We have the RTNL here for the iteration, but we need to lock
each wiphy separately as well for using its data. Hold the
wiphy lock for all of the ones in the iteration. Note that
this implies we cannot already hold the wiphy mutex for the
wiphy passed by the argument, but that's true now.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Since we will want to remove the wdev lock in the future,
lock the wiphy here to iterate and for checking the status
of the connections.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Since we will want to remove the wdev lock in the future,
lock the wiphy here to iterate and check the flags.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There may be sometimes reasons to actually run the work
if it's pending, add flush functions for both regular and
delayed wiphy work that will do this.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>