Several new features here:
- virtio-net is finally supported in vduse.
- Virtio (balloon and mem) interaction with suspend is improved
- vhost-scsi now handles signals better/faster.
Fixes, cleanups all over the place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio updates from Michael Tsirkin:
"Several new features here:
- virtio-net is finally supported in vduse
- virtio (balloon and mem) interaction with suspend is improved
- vhost-scsi now handles signals better/faster
And fixes, cleanups all over the place"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (48 commits)
virtio-pci: Check if is_avq is NULL
virtio: delete vq in vp_find_vqs_msix() when request_irq() fails
MAINTAINERS: add Eugenio Pérez as reviewer
vhost-vdpa: Remove usage of the deprecated ida_simple_xx() API
vp_vdpa: don't allocate unused msix vectors
sound: virtio: drop owner assignment
fuse: virtio: drop owner assignment
scsi: virtio: drop owner assignment
rpmsg: virtio: drop owner assignment
nvdimm: virtio_pmem: drop owner assignment
wifi: mac80211_hwsim: drop owner assignment
vsock/virtio: drop owner assignment
net: 9p: virtio: drop owner assignment
net: virtio: drop owner assignment
net: caif: virtio: drop owner assignment
misc: nsm: drop owner assignment
iommu: virtio: drop owner assignment
drm/virtio: drop owner assignment
gpio: virtio: drop owner assignment
firmware: arm_scmi: virtio: drop owner assignment
...
virtio core already sets the .owner, so driver does not need to.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Message-Id: <20240331-module-owner-virtio-v2-20-98f04bfaf46a@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Advertise support for BSS color and then once the countdown reaches 0,
call color change finish.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240422053412.2024075-8-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If a custom regulatory is being used, use the 6GHz regulatory for
testing 6GHz channels.
Signed-off-by: Chaitanya Tata <Chaitanya.Tk17@gmail.com>
Link: https://msgid.link/20240417074022.423432-1-Chaitanya.Tk17@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If we don't get all the values here, we might pass them to
cfg80211 uninitialized. Fix that, even if the input might
then not make much sense.
Fixes: 2af3b2a631 ("mac80211_hwsim: add PMSR report support via virtio")
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240418105220.e1317621c1f9.If7dd447de24d7493d133284db5e9e482e4e299f8@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Declare HE/EHT capabilities support also for P2P client and P2P GO
interface types.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240320091155.73ae309d27c2.I31ef6af2f1ebf54281858e2f63afcb10b61985fe@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Initially, we were only using this for non-MLO, but it could
also be useful for MLO, and if we move it to per-link and the
vif isn't an MLD, it'll be put in the same place (by mac80211)
anyway. Move it to be per link.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240318184907.8b6691bd70eb.If8a28b893d277254906601065e4aaefa704b6fcb@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Currently link ID information is not passed to mac80211 via Rx status by
mac80211_hwsim. This leads to packet getting dropped in function
__ieee80211_rx_handle_packet since it expects the link ID if packet is
intended for a MLO station and the station is not directly passed via
pubsta function argument.
Add changes to pass the link ID information in Rx status.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://msgid.link/20240313145402.456514-1-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Currently switch_vif_chanctx mac80211 callback is not supported for
MLO. Add it.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240216144621.514385-3-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Currently, function to check if beacon countdown is complete uses deflink
to fetch the beacon and check the counter. However, with MLO, there is
a need to check the counter for the beacon in a particular link.
Add support to use link_id in order to fetch the beacon from a particular
link data.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240216144621.514385-2-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This allows testing 160MHz channels with DFS concurrent.
While at it, remove the TODO for adding a module param to enable
NL80211_EXT_FEATURE_DFS_CONCURRENT. This is not really needed as
mac80211_hwsim still needs to be loaded with custom regdom.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206164849.1b9955e511f0.I5e5315e3a047db3677bfb5ead003a3a4f7d29b13@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Currently ieee80211_csa_finish() function finalizes CSA by scheduling a
finalizing worker using the deflink. With MLO, there is a need to do it
on a given link basis.
Pass link ID of the link on which CSA needs to be finalized.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240130140918.1172387-6-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There are still surprisingly many non-chanctx drivers, but in
mac80211 that code is a bit awkward. Simplify this by having
those drivers assign 'emulated' ops, so that the mac80211 code
can be more unified between non-chanctx/chanctx drivers. This
cuts the number of places caring about it by about 15, which
are scattered across - now they're fewer and no longer in the
channel context handling.
Link: https://msgid.link/20240129194108.6d0ead50f5cf.I60d093b2fc81ca1853925a4d0ac3a2337d5baa5b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
To test certain beacon loss scenarios it can be useful to
simply not send a couple of beacons. Add a simple debugfs
file (per vif) to skip sending the beacons. They're still
fully prepared etc. so their DTIM count etc. will appear
as if they were simply corrupt over the air or otherwise
not received.
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://msgid.link/20240129200001.a267383709e6.I36f427d17c3478a7df46e205716f5ebc9b35a918@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Advertise MLD capabilities and operations in AP mode that
say that up to 15 links are supported simultaneously.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240111181514.52a1d48b67e6.Ie459df742944d24d6401683d54d2f3ac44834803@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Advertise EMLSR and EMLMR capability on the AP side to be
a better compliant AP MLD.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240102213313.dc8786efa787.Ic460c13a91d770c208ac16d0b3e94941bab9b8eb@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Advertise support for negotiated TTLM in AP mode for testing
purposes. In addition, declare support for some extended
capabilities that are globally advertised by mac80211.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240102213313.3f54382f8449.I42b2f7c52f7574448cc8da3ad3db45075e4e0baa@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Same as in BSS_CHANGED_VALID_LINKS, set the active
links to all the usable links.
Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240102213313.3c28da3534e9.I76846c5dd693f930d4828e411c734639708b5a1a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Accept the request if all TIDs are mapped to the same link set,
otherwise reject it.
Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240102213313.dfa8e132d0cd.I5fbec1fef933980819ea39c1227f37d307ab1145@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
We are missing the flag that indicates that capability
of 40 MHz bandwidth support in HE on the LB.
Add it.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20231220075830.4f10c6b64d1a.I1ba6905c806be6e0548ed15130c0bbb2ee04c9fd@changeid
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>
When compiling with clang 16.0.6 and CONFIG_FORTIFY_SOURCE=y, I've
noticed the following (somewhat confusing due to absence of an actual
source code location):
In file included from drivers/net/wireless/virtual/mac80211_hwsim.c:18:
In file included from ./include/linux/slab.h:16:
In file included from ./include/linux/gfp.h:7:
In file included from ./include/linux/mmzone.h:8:
In file included from ./include/linux/spinlock.h:56:
In file included from ./include/linux/preempt.h:79:
In file included from ./arch/x86/include/asm/preempt.h:9:
In file included from ./include/linux/thread_info.h:60:
In file included from ./arch/x86/include/asm/thread_info.h:53:
In file included from ./arch/x86/include/asm/cpufeature.h:5:
In file included from ./arch/x86/include/asm/processor.h:23:
In file included from ./arch/x86/include/asm/msr.h:11:
In file included from ./arch/x86/include/asm/cpumask.h:5:
In file included from ./include/linux/cpumask.h:12:
In file included from ./include/linux/bitmap.h:11:
In file included from ./include/linux/string.h:254:
./include/linux/fortify-string.h:592:4: warning: call to '__read_overflow2_field'
declared with 'warning' attribute: detected read beyond size of field (2nd
parameter); maybe use struct_group()? [-Wattribute-warning]
__read_overflow2_field(q_size_field, size);
The compiler actually complains on 'mac80211_hwsim_get_et_strings()' where
fortification logic inteprets call to 'memcpy()' as an attempt to copy the
whole 'mac80211_hwsim_gstrings_stats' array from its first member and so
issues an overread warning. This warning may be silenced by passing
an address of the whole array and not the first member to 'memcpy()'.
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Link: https://lore.kernel.org/r/20230829094140.234636-1-dmantipov@yandex.ru
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This reverts commit b970ac68e0 ("wifi: mac80211_hwsim: check the
return value of nla_put_u32") since it introduced a memory leak in
the error path, which seems worse than sending an incomplete skb,
and the put can't fail anyway since the SKB was just allocated.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The nlmsg_free() ends up calling kfree_skb(), and kfree_skb() is not allowed to be called
from hardware interrupt context or with hardware interrupts being disabled. Replace the
mistaken usage of nlmsg_free() by dev_kfree_skb_irq(), which is safe in both cases.
Signed-off-by: EN-WEI WU <enweiwu@FreeBSD.org>
Link: https://lore.kernel.org/r/20230815095427.13589-1-enweiwu@FreeBSD.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
While technically some control frames like ACK are shorter and
end after Address 1, such frames shouldn't be forwarded through
wmediumd or similar userspace, so require the full 3-address
header to avoid accessing invalid memory if shorter frames are
passed in.
Reported-by: syzbot+b2645b5bf1512b81fa22@syzkaller.appspotmail.com
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There are a number of upcoming things in both the stack and
drivers that would otherwise conflict, so merge wireless to
wireless-next to be able to avoid those conflicts.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If the station disables all links it's in powersave and
we shouldn't transmit anything to it, but we don't handle
that correctly yet. For now, just avoid the warning, once
we really add support for this case we can revert to the
old warning.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230504134511.828474-8-gregory.greenman@intel.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Here is the large set of driver core changes for 6.4-rc1.
Once again, a busy development cycle, with lots of changes happening in
the driver core in the quest to be able to move "struct bus" and "struct
class" into read-only memory, a task now complete with these changes.
This will make the future rust interactions with the driver core more
"provably correct" as well as providing more obvious lifetime rules for
all busses and classes in the kernel.
The changes required for this did touch many individual classes and
busses as many callbacks were changed to take const * parameters
instead. All of these changes have been submitted to the various
subsystem maintainers, giving them plenty of time to review, and most of
them actually did so.
Other than those changes, included in here are a small set of other
things:
- kobject logging improvements
- cacheinfo improvements and updates
- obligatory fw_devlink updates and fixes
- documentation updates
- device property cleanups and const * changes
- firwmare loader dependency fixes.
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the large set of driver core changes for 6.4-rc1.
Once again, a busy development cycle, with lots of changes happening
in the driver core in the quest to be able to move "struct bus" and
"struct class" into read-only memory, a task now complete with these
changes.
This will make the future rust interactions with the driver core more
"provably correct" as well as providing more obvious lifetime rules
for all busses and classes in the kernel.
The changes required for this did touch many individual classes and
busses as many callbacks were changed to take const * parameters
instead. All of these changes have been submitted to the various
subsystem maintainers, giving them plenty of time to review, and most
of them actually did so.
Other than those changes, included in here are a small set of other
things:
- kobject logging improvements
- cacheinfo improvements and updates
- obligatory fw_devlink updates and fixes
- documentation updates
- device property cleanups and const * changes
- firwmare loader dependency fixes.
All of these have been in linux-next for a while with no reported
problems"
* tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (120 commits)
device property: make device_property functions take const device *
driver core: update comments in device_rename()
driver core: Don't require dynamic_debug for initcall_debug probe timing
firmware_loader: rework crypto dependencies
firmware_loader: Strip off \n from customized path
zram: fix up permission for the hot_add sysfs file
cacheinfo: Add use_arch[|_cache]_info field/function
arch_topology: Remove early cacheinfo error message if -ENOENT
cacheinfo: Check cache properties are present in DT
cacheinfo: Check sib_leaf in cache_leaves_are_shared()
cacheinfo: Allow early level detection when DT/ACPI info is missing/broken
cacheinfo: Add arm64 early level initializer implementation
cacheinfo: Add arch specific early level initializer
tty: make tty_class a static const structure
driver core: class: remove struct class_interface * from callbacks
driver core: class: mark the struct class in struct class_interface constant
driver core: class: make class_register() take a const *
driver core: class: mark class_release() as taking a const *
driver core: remove incorrect comment for device_create*
MIPS: vpe-cmp: remove module owner pointer from struct class usage.
...
PMSR (a.k.a. peer measurement) is generalized measurement between two
devices with Wi-Fi support. And currently FTM (a.k.a. fine time measurement
or flight time measurement) is the one and only measurement.
Add the necessary functionality to allow mac80211_hwsim to report PMSR
result. The result would come from the wmediumd, where other Wi-Fi
devices' information are kept. mac80211_hwsim only need to deliver the
result to the userspace.
In detail, add new mac80211_hwsim attributes HWSIM_CMD_REPORT_PMSR, and
HWSIM_ATTR_PMSR_RESULT. When mac80211_hwsim receives the PMSR result with
command HWSIM_CMD_REPORT_PMSR and detail with attribute
HWSIM_ATTR_PMSR_RESULT, received data is parsed to cfg80211_pmsr_result and
resent to the userspace by cfg80211_pmsr_report().
To help receive the details of PMSR result, hwsim_rate_info_attributes is
added to receive rate_info without complex bitrate calculation. (i.e. send
rate_info without adding inverse of nl80211_put_sta_rate()).
Signed-off-by: Jaewan Kim <jaewan@google.com>
Link: https://lore.kernel.org/r/20230322131637.2633968-6-jaewan@google.com
[fix uninitialized return value when there are no reports]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
PMSR (a.k.a. peer measurement) is generalized measurement between two
devices with Wi-Fi support. And currently FTM (a.k.a. fine time
measurement or flight time measurement) is the one and only measurement.
Add necessary functionalities for mac80211_hwsim to abort previous PMSR
request. The abortion request is sent to the wmedium where the PMSR request
is actually handled.
In detail, add new mac80211_hwsim command HWSIM_CMD_ABORT_PMSR. When
mac80211_hwsim receives the PMSR abortion request via
ieee80211_ops.abort_pmsr, the received cfg80211_pmsr_request is resent to
the wmediumd with command HWSIM_CMD_ABORT_PMSR and attribute
HWSIM_ATTR_PMSR_REQUEST. The attribute is formatted as the same way as
nl80211_pmsr_start() expects.
Signed-off-by: Jaewan Kim <jaewan@google.com>
Link: https://lore.kernel.org/r/20230322131637.2633968-5-jaewan@google.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
PMSR (a.k.a. peer measurement) is generalized measurement between two
Wi-Fi devices. And currently FTM (a.k.a. fine time measurement or flight
time measurement) is the one and only measurement. FTM is measured by
RTT (a.k.a. round trip time) of packets between two Wi-Fi devices.
Add necessary functionalities for mac80211_hwsim to start PMSR request by
passthrough the request to wmediumd via virtio. mac80211_hwsim can't
measure RTT for real because mac80211_hwsim the software simulator and
packets are sent almost immediately for real. This change expect wmediumd
to have all the location information of devices, so passthrough requests
to wmediumd.
In detail, add new mac80211_hwsim command HWSIM_CMD_ABORT_PMSR. When
mac80211_hwsim receives the PMSR start request via
ieee80211_ops.start_pmsr, the received cfg80211_pmsr_request is resent to
the wmediumd with command HWSIM_CMD_START_PMSR and attribute
HWSIM_ATTR_PMSR_REQUEST. The attribute is formatted as the same way as
nl80211_pmsr_start() expects.
Signed-off-by: Jaewan Kim <jaewan@google.com>
Link: https://lore.kernel.org/r/20230322131637.2633968-4-jaewan@google.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
PMSR (a.k.a. peer measurement) is generalized measurement between two
Wi-Fi devices. And currently FTM (a.k.a. fine time measurement or flight
time measurement) is the one and only measurement. FTM is measured by
RTT (a.k.a. round trip time) of packets between two Wi-Fi devices.
Add necessary functionality to allow mac80211_hwsim to be configured with
PMSR capability. The capability is mandatory to accept incoming PMSR
request because nl80211_pmsr_start() ignores incoming the request without
the PMSR capability.
In detail, add new mac80211_hwsim attribute HWSIM_ATTR_PMSR_SUPPORT.
HWSIM_ATTR_PMSR_SUPPORT is used to set PMSR capability when creating a new
radio. To send extra capability details, HWSIM_ATTR_PMSR_SUPPORT can have
nested PMSR capability attributes defined in the nl80211.h. Data format is
the same as cfg80211_pmsr_capabilities.
If HWSIM_ATTR_PMSR_SUPPORT is specified, mac80211_hwsim builds
cfg80211_pmsr_capabilities and sets wiphy.pmsr_capa.
Signed-off-by: Jaewan Kim <jaewan@google.com>
Link: https://lore.kernel.org/r/20230322131637.2633968-2-jaewan@google.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Advertise multiple BSSID support for up to 8 interfaces.
Do not send beacons from the non-transmitting interfaces.
Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com>
Link: https://lore.kernel.org/r/20221206005040.3177-4-quic_alokad@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Move the beacon transmission to a separate function to facilitate
addition of EMA beacon transmission.
Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com>
Link: https://lore.kernel.org/r/20221206005040.3177-3-quic_alokad@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
To clean up drivers/net/wireless move the virtual drivers to a new virtual
directory. I did consider adding CONFIG_WLAN_VENDOR_VIRTUAL like other vendors
have but then dropped the idea as we are not real drivers.
There should be no changes in compilation or in Kconfig options, merely moving
files. The order in menuconfig is slightly changed, the virtual drivers are now
last in the list.
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230227121732.8967-2-kvalo@kernel.org
2023-03-13 15:42:14 +02:00
Renamed from drivers/net/wireless/mac80211_hwsim.c (Browse further)
