This is needed since it might use (and pass out) pointers to
e.g. keys protected by RCU. Can't really happen here as the
frames aren't encrypted, but we need to still adhere to the
rules.
Fixes: cacfddf82b ("mac80211_hwsim: initialize ieee80211_tx_info at hw_scan_work")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20220505230421.5f139f9de173.I77ae111a28f7c0e9fd1ebcee7f39dbec5c606770@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Currently in mac80211 each STA object is represented
using sta_info datastructure with the associated
STA specific information and drivers access ieee80211_sta
part of it.
With MLO (Multi Link Operation) support being added
in 802.11be standard, though the association is logically
with a single Multi Link capable STA, at the physical level
communication can happen via different advertised
links (uniquely identified by Channel, operating class,
BSSID) and hence the need to handle multiple link
STA parameters within a composite sta_info object
called the MLD STA. The different link STA part of
MLD STA are identified using the link address which can
be same or different as the MLD STA address and unique
link id based on the link vif.
To support extension of such a model, the sta_info
datastructure is modified to hold multiple link STA
objects with link specific params currently within
sta_info moved to this new structure. Similarly this is
done for ieee80211_sta as well which will be accessed
within mac80211 as well as by drivers, hence trivial
driver changes are expected to support this.
For current non MLO supported drivers, only one link STA
is present and link information is accessed via 'deflink'
member.
For MLO drivers, we still need to define the APIs etc. to
get the correct link ID and access the correct part of
the station info.
Currently in mac80211, all link STA info are accessed directly
via deflink. These will be updated to access via link pointers
indexed by link id with MLO support patches, with link id
being 0 for non MLO supported cases.
Except for couple of macro related changes, below spatch takes
care of updating mac80211 and driver code to access to the
link STA info via deflink.
@ieee80211_sta@
struct ieee80211_sta *s;
struct sta_info *si;
identifier var = {supp_rates, ht_cap, vht_cap, he_cap, he_6ghz_capa, eht_cap, rx_nss, bandwidth, txpwr};
@@
(
s->
- var
+ deflink.var
|
si->sta.
- var
+ deflink.var
)
@sta_info@
struct sta_info *si;
identifier var = {gtk, pcpu_rx_stats, rx_stats, rx_stats_avg, status_stats, tx_stats, cur_max_bandwidth};
@@
(
si->
- var
+ deflink.var
)
Signed-off-by: Sriram R <quic_srirrama@quicinc.com>
Link: https://lore.kernel.org/r/1649086883-13246-1-git-send-email-quic_srirrama@quicinc.com
[remove MLO-drivers notes from commit message, not clear yet; run spatch]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* add BCM43454/6 support
rtw89
* add support for 160 MHz channels and 6 GHz band
* hardware scan support
iwlwifi
* support UHB TAS enablement via BIOS
* remove a bunch of W=1 warnings
* add support for channel switch offload
* support 32 Rx AMPDU sessions in newer devices
* add support for a couple of new devices
* add support for band disablement via BIOS
mt76
* mt7915 thermal management improvements
* SAR support for more mt76 drivers
* mt7986 wmac support on mt7915
ath11k
* debugfs interface to configure firmware debug log level
* debugfs interface to test Target Wake Time (TWT)
* provide 802.11ax High Efficiency (HE) data via radiotap
ath9k
* use hw_random API instead of directly dumping into random.c
wcn36xx
* fix wcn3660 to work on 5 GHz band
ath6kl
* add device ID for WLU5150-D81
cfg80211/mac80211
* initial EHT (from 802.11be) support
(EHT rates, 320 MHz, larger block-ack)
* support disconnect on HW restart
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Merge tag 'wireless-next-2022-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Johannes Berg says:
====================
brcmfmac
* add BCM43454/6 support
rtw89
* add support for 160 MHz channels and 6 GHz band
* hardware scan support
iwlwifi
* support UHB TAS enablement via BIOS
* remove a bunch of W=1 warnings
* add support for channel switch offload
* support 32 Rx AMPDU sessions in newer devices
* add support for a couple of new devices
* add support for band disablement via BIOS
mt76
* mt7915 thermal management improvements
* SAR support for more mt76 drivers
* mt7986 wmac support on mt7915
ath11k
* debugfs interface to configure firmware debug log level
* debugfs interface to test Target Wake Time (TWT)
* provide 802.11ax High Efficiency (HE) data via radiotap
ath9k
* use hw_random API instead of directly dumping into random.c
wcn36xx
* fix wcn3660 to work on 5 GHz band
ath6kl
* add device ID for WLU5150-D81
cfg80211/mac80211
* initial EHT (from 802.11be) support
(EHT rates, 320 MHz, larger block-ack)
* support disconnect on HW restart
* tag 'wireless-next-2022-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (247 commits)
mac80211: Add support to trigger sta disconnect on hardware restart
mac80211: fix potential double free on mesh join
mac80211: correct legacy rates check in ieee80211_calc_rx_airtime
nl80211: fix typo of NL80211_IF_TYPE_OCB in documentation
mac80211: Use GFP_KERNEL instead of GFP_ATOMIC when possible
mac80211: replace DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE
rtw89: 8852c: process logic efuse map
rtw89: 8852c: process efuse of phycap
rtw89: support DAV efuse reading operation
rtw89: 8852c: add chip::dle_mem
rtw89: add page_regs to handle v1 chips
rtw89: add chip_info::{h2c,c2h}_reg to support more chips
rtw89: add hci_func_en_addr to support variant generation
rtw89: add power_{on/off}_func
rtw89: read chip version depends on chip ID
rtw89: pci: use a struct to describe all registers address related to DMA channel
rtw89: pci: add V1 of PCI channel address
rtw89: pci: add struct rtw89_pci_info
rtw89: 8852c: add 8852c empty files
MAINTAINERS: add devicetree bindings entry for mt76
...
====================
Link: https://lore.kernel.org/r/20220311124029.213470-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Fix the following coccicheck warning:
./drivers/net/wireless/mac80211_hwsim.c:1040:0-23: WARNING:
hwsim_fops_rx_rssi should be defined with
DEFINE_DEBUGFS_ATTRIBUTE
Signed-off-by: Yihao Han <hanyihao@vivo.com>
Link: https://lore.kernel.org/r/20220218070228.6210-1-hanyihao@vivo.com
[fix indentation]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In mac80211_hwsim, the probe_req frame is created and sent while
scanning. It is sent with ieee80211_tx_info which is not initialized.
Uninitialized ieee80211_tx_info can cause problems when using
mac80211_hwsim with wmediumd. wmediumd checks the tx_rates field of
ieee80211_tx_info and doesn't relay probe_req frame to other clients
even if it is a broadcasting message.
Call ieee80211_tx_prepare_skb() to initialize ieee80211_tx_info for
the probe_req that is created by hw_scan_work in mac80211_hwsim.
Signed-off-by: JaeMan Park <jaeman@google.com>
Link: https://lore.kernel.org/r/20220113060235.546107-1-jaeman@google.com
[fix memory leak]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
partial support for < MAX_ORDER - 1 granularity for virtio-mem
driver_override for vdpa
sysfs ABI documentation for vdpa
multiqueue config support for mlx5 vdpa
Misc fixes, cleanups.
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:
"virtio,vdpa,qemu_fw_cfg: features, cleanups, and fixes.
- partial support for < MAX_ORDER - 1 granularity for virtio-mem
- driver_override for vdpa
- sysfs ABI documentation for vdpa
- multiqueue config support for mlx5 vdpa
- and misc fixes, cleanups"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (42 commits)
vdpa/mlx5: Fix tracking of current number of VQs
vdpa/mlx5: Fix is_index_valid() to refer to features
vdpa: Protect vdpa reset with cf_mutex
vdpa: Avoid taking cf_mutex lock on get status
vdpa/vdpa_sim_net: Report max device capabilities
vdpa: Use BIT_ULL for bit operations
vdpa/vdpa_sim: Configure max supported virtqueues
vdpa/mlx5: Report max device capabilities
vdpa: Support reporting max device capabilities
vdpa/mlx5: Restore cur_num_vqs in case of failure in change_num_qps()
vdpa: Add support for returning device configuration information
vdpa/mlx5: Support configuring max data virtqueue
vdpa/mlx5: Fix config_attr_mask assignment
vdpa: Allow to configure max data virtqueues
vdpa: Read device configuration only if FEATURES_OK
vdpa: Sync calls set/get config/status with cf_mutex
vdpa/mlx5: Distribute RX virtqueues in RQT object
vdpa: Provide interface to read driver features
vdpa: clean up get_config_size ret value handling
virtio_ring: mark ring unused on error
...
This will enable cleanups down the road.
The idea is to disable cbs, then add "flush_queued_cbs" callback
as a parameter, this way drivers can flush any work
queued after callbacks have been disabled.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/r/20211013105226.20225-1-mst@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* the applicable eth_hw_addr_set() and const hw_addr changes
* various code cleanups/refactorings
* stack usage reductions across the wireless stack
* some unstructured find_ie() -> structured find_element()
changes
* a few more pieces of multi-BSSID support
* some 6 GHz regulatory support
* 6 GHz support in hwsim, for testing userspace code
* Light Communications (LC, 802.11bb) early band definitions
to be able to add a first driver soon
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Merge tag 'mac80211-next-for-net-next-2021-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
Quite a few changes:
* the applicable eth_hw_addr_set() and const hw_addr changes
* various code cleanups/refactorings
* stack usage reductions across the wireless stack
* some unstructured find_ie() -> structured find_element()
changes
* a few more pieces of multi-BSSID support
* some 6 GHz regulatory support
* 6 GHz support in hwsim, for testing userspace code
* Light Communications (LC, 802.11bb) early band definitions
to be able to add a first driver soon
* tag 'mac80211-next-for-net-next-2021-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next: (35 commits)
cfg80211: fix kernel-doc for MBSSID EMA
mac80211: Prevent AP probing during suspend
nl80211: Add LC placeholder band definition to nl80211_band
...
====================
Link: https://lore.kernel.org/r/20211021154953.134849-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit 406f42fa0d ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20211018235021.1279697-12-kuba@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Thomas explained in https://lore.kernel.org/r/87mtoeb4hb.ffs@tglx
that our handling of the hrtimer here is wrong: If the timer fires
late (e.g. due to vCPU scheduling, as reported by Dmitry/syzbot)
then it tries to actually rearm the timer at the next deadline,
which might be in the past already:
1 2 3 N N+1
| | | ... | |
^ intended to fire here (1)
^ next deadline here (2)
^ actually fired here
The next time it fires, it's later, but will still try to schedule
for the next deadline (now 3), etc. until it catches up with N,
but that might take a long time, causing stalls etc.
Now, all of this is simulation, so we just have to fix it, but
note that the behaviour is wrong even per spec, since there's no
value then in sending all those beacons unaligned - they should be
aligned to the TBTT (1, 2, 3, ... in the picture), and if we're a
bit (or a lot) late, then just resume at that point.
Therefore, change the code to use hrtimer_forward_now() which will
ensure that the next firing of the timer would be at N+1 (in the
picture), i.e. the next interval point after the current time.
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Reported-by: syzbot+0e964fad69a9c462bc1e@syzkaller.appspotmail.com
Fixes: 01e59e467e ("mac80211_hwsim: hrtimer beacon")
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210915112936.544f383472eb.I3f9712009027aa09244b65399bf18bf482a8c4f1@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Syzbot reports that we may be able to get into a situation where
mac80211 has pending ACK frames on shutdown with hwsim. It appears
that the reason for this is that syzbot uses the wmediumd hooks to
intercept/injection frames, and may shut down hwsim, removing the
radio(s), while frames are pending in the air simulation.
Clean out the pending queue when the interface is stopped, after
this the frames can't be reported back to mac80211 properly anyway.
Reported-by: syzbot+a063bbf0b15737362592@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20210517170429.b0f85ab0eda1.Ie42a6ec6b940c971f3441286aeaaae2fe368e29a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Guobin Huang <huangguobin4@huawei.com>
Link: https://lore.kernel.org/r/1616839160-6654-1-git-send-email-huangguobin4@huawei.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Bulk of the genetlink users can use smaller ops, move them.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Advertise S1G Capabilities and channels to mac80211.
Requires a few fixups to account for missing
sband->bitrates, and a custom regulatory db to actually
enable the S1G channels.
Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com>
Link: https://lore.kernel.org/r/20200922022818.15855-18-thomas@adapt-ip.com
[small code cleanup]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
S1G beacons are different from normal management beacons, so write
the timestamp to the correct location there.
Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com>
Link: https://lore.kernel.org/r/20200922022818.15855-17-thomas@adapt-ip.com
[rewrite commit message that was not useful after patch reordering]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
We want to reuse the functions and structs for other counters such as BSS
color change. Rename them to more generic names.
Signed-off-by: John Crispin <john@phrozen.org>
Link: https://lore.kernel.org/r/20200811080107.3615705-2-john@phrozen.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* hwsim improvements from Jouni and myself, to be able to
test more scenarios easily
* some more HE (802.11ax) support
* some initial S1G (sub 1 GHz) work for fractional MHz channels
* some (action) frame registration updates to help DPP support
* along with other various improvements/fixes
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Merge tag 'mac80211-next-for-net-next-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
One batch of changes, containing:
* hwsim improvements from Jouni and myself, to be able to
test more scenarios easily
* some more HE (802.11ax) support
* some initial S1G (sub 1 GHz) work for fractional MHz channels
* some (action) frame registration updates to help DPP support
* along with other various improvements/fixes
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
mac80211 takes care of rate control for the Beacon frames, so all
mac80211_hwsim needs to do here is advertise support for this.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20200425155713.25687-5-jouni@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
While mac80211_hwsim does not need this to configure RX filters, it is
convenient to have this enabled for testing purposes.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20200425155713.25687-3-jouni@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This is actually true because there's no functional beacon distribution
and lets us get active scanning working - without it, mac80211 doesn't
respond to probe requests.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200326150855.554d1199b309.Id86fd36e3d88d2a75d6e0c6618fd93ce8fe84065@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Currently, wmediumd requires each used MAC address to be configured
as a station in the virtual air, but that doesn't make sense as any
station could have multiple MAC addresses, and even have randomized
ones in scanning, etc.
Add some code here to tell wmediumd of used MAC addresses, binding
them to the hardware address. Combined with a wmediumd patch that
makes it track the addresses this allows configuring just the radio
address (42:00:00:00:nn:00 unless the radio was manually created)
in wmediumd as a station, and all addresses that the station uses
are added/removed dynamically.
Tested with random scan, which without this and the corresponding
wmediumd change doesn't get anything through as the sender doesn't
exist as far as wmediumd is concerned (it's random).
Link: https://lore.kernel.org/r/20200323162358.b397b1a1acef.Ice0536e34e5d96c51f97c374ea8af9551347c7e8@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
syzbot reports a warning:
precision 33020 too large
WARNING: CPU: 0 PID: 9618 at lib/vsprintf.c:2471 set_precision+0x150/0x180 lib/vsprintf.c:2471
vsnprintf+0xa7b/0x19a0 lib/vsprintf.c:2547
kvasprintf+0xb2/0x170 lib/kasprintf.c:22
kasprintf+0xbb/0xf0 lib/kasprintf.c:59
hwsim_del_radio_nl+0x63a/0x7e0 drivers/net/wireless/mac80211_hwsim.c:3625
genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline]
...
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Thus it seems that kasprintf() with "%.*s" format can not be used for
duplicating a string with arbitrary length. Replace it with kstrndup().
Note that later this string is limited to NL80211_WIPHY_NAME_MAXLEN == 64,
but the code is simpler this way.
Reported-by: syzbot+6693adf1698864d21734@syzkaller.appspotmail.com
Reported-by: syzbot+a4aee3f42d7584d76761@syzkaller.appspotmail.com
Cc: stable@kernel.org
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Link: https://lore.kernel.org/r/20200410123257.14559-1-tuomas.tynkkynen@iki.fi
[johannes: add note about length limit]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This allows communication with external entities.
It also required fixing up the netlink policy, since NLA_UNSPEC
attributes are no longer accepted.
Signed-off-by: Erel Geron <erelx.geron@intel.com>
[port to backports, inline the ID, use 29 as the ID as requested,
drop != NULL checks, reduce ifdefs]
Link: https://lore.kernel.org/r/20200305143212.c6e4c87d225b.I7ce60bf143e863dcdf0fb8040aab7168ba549b99@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Now that there is support for BIGTK configuration and AP/STA
functionality for using BIP with Beacon frames, indicate support for the
Beacon protection functionality.
Johannes: move this to hwsim, since it's not clear that all drivers
using mac80211 will do this correctly - lots of them modify the
beacon before transmission e.g. to update the TIM element, and that
would obviously break the signature.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20200222132548.20835-7-jouni@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Advertise the correct flags to mac80211 to indicate PS
trigger frames and frame buffering should be handled by
mac80211. This means mac80211_hwsim will now also have to
release buffered multicast frames after a (DTIM) beacon.
Leave STA power save disabled by default since it causes
several p2p, scanning, and rrm hostap tests to fail.
Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com>
Link: https://lore.kernel.org/r/20200114055940.18502-2-thomas@adapt-ip.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This is too low, at least ETSI regulatory domain would
allow 36 dBm on 5 GHz in (some? most?) cases. But there's
no reason hwsim should have a limit at all, so remove it.
See also
https://lore.kernel.org/r/20191108152013.13418-1-ramonreisfontes@gmail.com
Change-Id: I6edf81d2e82bc8ce7baa40bfc0f210b7b56ef275
Reported-by: Ramon Fontes <ramonreisfontes@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
It is more clear to use DEFINE_DEBUGFS_ATTRIBUTE to define debugfs file
operation rather than DEFINE_SIMPLE_ATTRIBUTE.
It is detected with the help of coccinelle.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Link: https://lore.kernel.org/r/1572404462-45462-1-git-send-email-zhongjiang@huawei.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
