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Avraham Stern [Thu, 27 Jan 2022 11:56:29 +0000 (13:56 +0200)]
wifi: cfg80211: add hardware timestamps to frame RX info
Add hardware timestamps to management frame RX info.
This shall be used by drivers that support hardware timestamping for
Timing measurement and Fine timing measurement action frames RX.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Avraham Stern [Sun, 30 Jan 2022 16:17:51 +0000 (18:17 +0200)]
wifi: cfg80211/nl80211: move rx management data into a struct
The functions for reporting rx management take many arguments.
Collect all the arguments into a struct, which also make it easier
to add more arguments if needed.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Avraham Stern [Wed, 26 Jan 2022 17:13:47 +0000 (19:13 +0200)]
wifi: cfg80211: add a function for reporting TX status with hardware timestamps
Add a function for reporting TX status with hardware timestamps. This
function shall be used for reporting the TX status of Timing
measurement and Fine timing measurement action frames by devices that
support reporting hardware timestamps.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Avraham Stern [Wed, 26 Jan 2022 14:06:35 +0000 (16:06 +0200)]
wifi: nl80211: add RX and TX timestamp attributes
Add attributes for reporting hardware timestamps for management frames
RX and TX. These attributes will be used for reporting hardware
timestamps for Timing measurement and Fine Timing Measurement action
frames, which will allow userspace applications to measure the path
delay between devices and sync clocks.
For TX, these attributes are used for reporting the frame RX time and
the ack TX time. For TX, they are used for reporting the frame TX time
and the ack RX time.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Avraham Stern [Thu, 27 Jan 2022 12:39:46 +0000 (14:39 +0200)]
wifi: ieee80211: add helper functions for detecting TM/FTM frames
Add helper functions for detection timing measurement
and fine timing measurement frames.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 20 Jul 2022 20:35:44 +0000 (22:35 +0200)]
wifi: mac80211_hwsim: handle links for wmediumd/virtio
For wmediumd/virtio, handle both the RX channel for links,
as well as the link addresses when links are added/removed.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 19 Jul 2022 10:08:29 +0000 (12:08 +0200)]
wifi: mac80211: sta_info: fix link_sta insertion
When inserting a link STA, make sure it doesn't exist first
and add lockdep assertions that we cannot modify the hash
table without holding the sta_mtx, so this check is really
correct.
Also return without hashing if the driver failed, and warn
if the hashing fails, which shouldn't happen due to the
check described above.
Fixes:
cb71f1d136a6 ("wifi: mac80211: add sta link addition/removal")
Fixes:
ba6ddab94fc6 ("wifi: mac80211: maintain link-sta hash table")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 19 Jul 2022 10:06:17 +0000 (12:06 +0200)]
wifi: mac80211: mlme: fix link_sta setup
We need to copy the address to both the private and public
portion of the link_sta (the private one is needed for the
hash table). Fix this.
Fixes:
bbe90107e1d9 ("wifi: mac80211: mlme: refactor link station setup")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 19 Jul 2022 08:26:50 +0000 (10:26 +0200)]
wifi: nl80211/mac80211: clarify link ID in control port TX
Clarify the link ID behaviour in control port TX, we need it
to select the link to transmit on for both MLD and non-MLD
receivers, but select the link address as the SA only if the
receiver is not an MLD.
Fixes:
67207bab9341 ("wifi: cfg80211/mac80211: Support control port TX from specific link")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 19 Jul 2022 07:37:59 +0000 (09:37 +0200)]
wifi: mac80211: return error from control port TX for drops
If the frame is going to be dropped anyway because
ieee80211_lookup_ra_sta() returned an error (and
even though it's a bit racy, it will likely continue
to do so), return the error out instead of just
silently dropping the frame.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 19 Jul 2022 06:44:25 +0000 (08:44 +0200)]
wifi: nl80211: require MLD address on link STA add/modify
We always need the MLD address and link ID to add or
modify the link STA, so require it in the API.
Fixes:
577e5b8c3924 ("wifi: cfg80211: add API to add/modify/remove a link station")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 18 Jul 2022 21:01:19 +0000 (23:01 +0200)]
wifi: mac80211: more station handling sanity checks
Add more sanity checks to the API handling, we shouldn't
be able to create a station without links, nor should we
be able to add a link to a station that wasn't created as
an MLD with links in the first place.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 18 Jul 2022 20:54:27 +0000 (22:54 +0200)]
wifi: mac80211: fix link sta hash table handling
There are two issues here: we unhash the link stations only
directly before freeing the station they belong to, and we
also don't unhash all the links correctly in all cases. Fix
these issues.
Fixes:
ba6ddab94fc6 ("wifi: mac80211: maintain link-sta hash table")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 18 Jul 2022 20:23:53 +0000 (22:23 +0200)]
wifi: mac80211: validate link address doesn't change
When modifying a link station, validate that the link address
doesn't change, except the first time the link is created.
Fixes:
b95eb7f0eee4 ("wifi: cfg80211/mac80211: separate link params from station params")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 18 Jul 2022 14:04:05 +0000 (16:04 +0200)]
wifi: mac80211: mlme: set sta.mlo to mlo state
At this point, we've already changed link_id to be zero for
a non-MLO connection, so use the 'mlo' variable rather than
link ID to determine the MLO status of the station.
Fixes:
bd363ee53302 ("wifi: mac80211: mlme: set sta.mlo correctly")
Fixes:
81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 18 Jul 2022 14:58:18 +0000 (16:58 +0200)]
wifi: mac80211: fast-xmit: handle non-MLO clients
If there's a non-MLO client, the A2 must be set to the BSSID
of the link since no translation will happen in lower layers
and it's needed that way for encryption.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 18 Jul 2022 14:45:50 +0000 (16:45 +0200)]
wifi: mac80211_hwsim: fix address translation for MLO
There are two issues here: we need to do the translation
even in case mac80211 selected a link, and we should only
translate the A3 if it's the BSSID. Fix both.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 18 Jul 2022 14:40:36 +0000 (16:40 +0200)]
wifi: mac80211: fix RX MLD address translation
We should only translate addr3 here if it's the BSSID.
Fixes:
42fb9148c078 ("wifi: mac80211: do link->MLD address translation on RX")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 18 Jul 2022 07:14:30 +0000 (09:14 +0200)]
wifi: mac80211: fix NULL pointer deref with non-MLD STA
If we have a non-MLD STA on an AP MLD, we crash while
adding the station. Fix that, in this case we need to
use the STA's address also on the link data structure.
Fixes:
f36fe0a2df03 ("wifi: mac80211: fix up link station creation/insertion")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Sun, 17 Jul 2022 16:16:51 +0000 (18:16 +0200)]
wifi: mac80211: mlme: fix override calculation
In my previous changes here, I neglected to take the old
conn_flags into account that might still be present from
the authentication, and thus ieee80211_setup_assoc_link()
can misbehave, as well as the override calculation being
wrong. Fix that by ORing in the old flags.
Fixes:
1845c1d4a455 ("wifi: mac80211: mlme: refactor assoc link setup")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 15 Jul 2022 13:37:23 +0000 (15:37 +0200)]
wifi: mac80211: tx: use AP address in some places for MLO
In a few places we need to use the AP (MLD) address, not the
deflink BSSID, the link address translation will happen later.
To make that work properly for fast-xmit, set up the ap_addr
in the vif.cfg earlier.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Jilin Yuan [Sun, 10 Jul 2022 04:34:05 +0000 (12:34 +0800)]
wifi: wl1251: fix repeated words in comments
Delete the redundant word 'the'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220710043405.38304-1-yuanjilin@cdjrlc.com
Jilin Yuan [Sun, 10 Jul 2022 04:30:07 +0000 (12:30 +0800)]
wifi: rsi: fix repeated words in comments
Delete the redundant word 'the'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220710043007.33288-1-yuanjilin@cdjrlc.com
Jilin Yuan [Sun, 10 Jul 2022 04:25:46 +0000 (12:25 +0800)]
wifi: rtl8192se: fix repeated words in comments
Delete the redundant word 'not'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220710042546.28504-1-yuanjilin@cdjrlc.com
Jilin Yuan [Sun, 10 Jul 2022 04:20:40 +0000 (12:20 +0800)]
wifi: rtlwifi: fix repeated words in comments
Delete the redundant words 'in' and 'scan'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220710042040.22456-1-yuanjilin@cdjrlc.com
Jilin Yuan [Sun, 10 Jul 2022 04:14:42 +0000 (12:14 +0800)]
wifi: rt2x00: fix repeated words in comments
Delete the redundant words 'is' and 'with'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220710041442.16177-1-yuanjilin@cdjrlc.com
Jilin Yuan [Sun, 10 Jul 2022 04:10:05 +0000 (12:10 +0800)]
wifi: qtnfmac: fix repeated words in comments
Delete the redundant word 'the'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220710041005.10950-1-yuanjilin@cdjrlc.com
Jilin Yuan [Sat, 9 Jul 2022 13:53:16 +0000 (21:53 +0800)]
wifi: iwlegacy: fix repeated words in comments
Delete the redundant words 'to' and 'if'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220709135316.41425-1-yuanjilin@cdjrlc.com
Jilin Yuan [Sat, 9 Jul 2022 13:47:01 +0000 (21:47 +0800)]
wifi: ipw2x00: fix repeated words in comments
Delete the redundant word 'the'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220709134701.36081-1-yuanjilin@cdjrlc.com
Jilin Yuan [Sat, 9 Jul 2022 13:42:07 +0000 (21:42 +0800)]
wifi: brcmsmac: fix repeated words in comments
Delete the redundant word 'the'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220709134207.30856-1-yuanjilin@cdjrlc.com
Jilin Yuan [Sat, 9 Jul 2022 13:36:18 +0000 (21:36 +0800)]
wifi: brcmfmac: fix repeated words in comments
Delete the redundant words 'this' and 'and'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220709133618.25958-1-yuanjilin@cdjrlc.com
Jilin Yuan [Sat, 9 Jul 2022 13:31:19 +0000 (21:31 +0800)]
wifi: b43: fix repeated words in comments
Delete the redundant word 'early'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220709133119.21076-1-yuanjilin@cdjrlc.com
Jilin Yuan [Sat, 9 Jul 2022 13:26:37 +0000 (21:26 +0800)]
wifi: atmel: fix repeated words in comments
Delete the redundant word 'long'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220709132637.16717-1-yuanjilin@cdjrlc.com
Tetsuo Handa [Sun, 17 Jul 2022 12:21:52 +0000 (21:21 +0900)]
wifi: mac80211: do not abuse fq.lock in ieee80211_do_stop()
lockdep complains use of uninitialized spinlock at ieee80211_do_stop() [1],
for commit
f856373e2f31ffd3 ("wifi: mac80211: do not wake queues on a vif
that is being stopped") guards clear_bit() using fq.lock even before
fq_init() from ieee80211_txq_setup_flows() initializes this spinlock.
According to discussion [2], Toke was not happy with expanding usage of
fq.lock. Since __ieee80211_wake_txqs() is called under RCU read lock, we
can instead use synchronize_rcu() for flushing ieee80211_wake_txqs().
Link: https://syzkaller.appspot.com/bug?extid=eceab52db7c4b961e9d6
Link: https://lkml.kernel.org/r/874k0zowh2.fsf@toke.dk
Reported-by: syzbot <syzbot+eceab52db7c4b961e9d6@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes:
f856373e2f31ffd3 ("wifi: mac80211: do not wake queues on a vif that is being stopped")
Tested-by: syzbot <syzbot+eceab52db7c4b961e9d6@syzkaller.appspotmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/9cc9b81d-75a3-3925-b612-9d0ad3cab82b@I-love.SAKURA.ne.jp
Rustam Subkhankulov [Thu, 14 Jul 2022 13:48:31 +0000 (16:48 +0300)]
wifi: p54: add missing parentheses in p54_flush()
The assignment of the value to the variable total in the loop
condition must be enclosed in additional parentheses, since otherwise,
in accordance with the precedence of the operators, the conjunction
will be performed first, and only then the assignment.
Due to this error, a warning later in the function after the loop may
not occur in the situation when it should.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Rustam Subkhankulov <subkhankulov@ispras.ru>
Fixes:
0d4171e2153b ("p54: implement flush callback")
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220714134831.106004-1-subkhankulov@ispras.ru
Justin Stitt [Mon, 11 Jul 2022 21:29:32 +0000 (14:29 -0700)]
wifi: mt7601u: fix clang -Wformat warning
When building with Clang we encounter this warning:
| drivers/net/wireless/mediatek/mt7601u/debugfs.c:92:6: error: format
| specifies type 'unsigned char' but the argument has type 'int'
| [-Werror,-Wformat] dev->ee->reg.start + dev->ee->reg.num - 1);
The format specifier used is `%hhu` which describes a u8. Both
`dev->ee->reg.start` and `.num` are u8 as well. However, the expression
as a whole is promoted to an int as you cannot get smaller-than-int from
addition. Therefore, to fix the warning, use the promoted-to-type's
format specifier -- in this case `%d`.
example:
```
uint8_t a = 4, b = 7;
int size = sizeof(a + b - 1);
printf("%d\n", size);
// output: 4
```
See more:
(https://wiki.sei.cmu.edu/confluence/display/c/INT02-C.+Understand+integer+conversion+rules)
"Integer types smaller than int are promoted when an operation is
performed on them. If all values of the original type can be represented
as an int, the value of the smaller type is converted to an int;
otherwise, it is converted to an unsigned int."
Signed-off-by: Justin Stitt <justinstitt@google.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220711212932.1501592-1-justinstitt@google.com
Justin Stitt [Sat, 9 Jul 2022 00:15:27 +0000 (17:15 -0700)]
wifi: mt7601u: eeprom: fix clang -Wformat warning
When building with Clang we encounter the following warning:
| drivers/net/wireless/mediatek/mt7601u/eeprom.c:193:5: error: format
| specifies type 'char' but the argument has type 'int' [-Werror,-Wformat]
| chan_bounds[idx].start + chan_bounds[idx].num - 1);
Variadic functions (printf-like) undergo default argument promotion.
Documentation/core-api/printk-formats.rst specifically recommends using
the promoted-to-type's format flag.
Moreover, C11 6.3.1.1 states:
(https://www.open-std.org/jtc1/sc22/wg14/www/docs/n1548.pdf) `If an int
can represent all values of the original type ..., the value is
converted to an int; otherwise, it is converted to an unsigned int.
These are called the integer promotions.`
With this information in hand, we really should stop using `%hh[dxu]` or
`%h[dxu]` as they usually prompt Clang -Wformat warnings as well as go
against documented standard recommendations.
Link: https://github.com/ClangBuiltLinux/linux/issues/378
Signed-off-by: Justin Stitt <justinstitt@google.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220709001527.618593-1-justinstitt@google.com
Christophe JAILLET [Mon, 4 Jul 2022 13:02:55 +0000 (15:02 +0200)]
wifi: p54: Use the bitmap API to allocate bitmaps
Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.
It is less verbose and it improves the semantic.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/2755b8b7d85a2db0663d39ea6df823f94f3401b3.1656939750.git.christophe.jaillet@wanadoo.fr
Christophe JAILLET [Sun, 12 Jun 2022 21:12:20 +0000 (23:12 +0200)]
wifi: p54: Fix an error handling path in p54spi_probe()
If an error occurs after a successful call to p54spi_request_firmware(), it
must be undone by a corresponding release_firmware() as already done in
the error handling path of p54spi_request_firmware() and in the .remove()
function.
Add the missing call in the error handling path and remove it from
p54spi_request_firmware() now that it is the responsibility of the caller
to release the firmware
Fixes:
cd8d3d321285 ("p54spi: p54spi driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/297d2547ff2ee627731662abceeab9dbdaf23231.1655068321.git.christophe.jaillet@wanadoo.fr
Kalle Valo [Mon, 18 Jul 2022 11:31:59 +0000 (14:31 +0300)]
Merge tag 'mt76-for-kvalo-2022-07-11' of https://github.com/nbd168/wireless
mt76 patches for 5.20
- preparation for new chipset support
- fixes
- VHT/HE related improvements
- ACPI SAR support
[kvalo@kernel.org: fix mac80211 API changes in start_ap() and stop_ap()]
Johannes Berg [Fri, 15 Jul 2022 13:11:50 +0000 (15:11 +0200)]
wifi: mac80211: mlme: set sta.mlo correctly
Due to some changes and rebasing between different patches
this fell through the cracks; we need to set sta.mlo if the
connection is using MLO.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 15 Jul 2022 13:04:41 +0000 (15:04 +0200)]
wifi: mac80211: remove stray printk
Unfortunately, a printk snuck into a previous patch,
remove it.
Fixes:
81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 1 Jun 2022 19:17:34 +0000 (21:17 +0200)]
wifi: mac80211: support MLO authentication/association with one link
It might seem a bit pointless to do a multi-link operation
connection with just a single link, but this is already a
big change, so for now, limit MLO connections to a single
link.
Extending that to multiple links will require
* work on parsing the multi-link element with STA profile
properly, including element fragmentation;
* checking the per-link status in the multi-link element
* implementing logic to have active/inactive links to let
drivers decide which links should be active;
* implementing multicast RX deduplication;
* and likely more.
For now this is still useful since it lets us do multi-link
connections for the purposes of testing APIs and the higher
layers such as wpa_supplicant.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 30 Jun 2022 11:48:22 +0000 (13:48 +0200)]
wifi: mac80211: add API to parse multi-link element
Add the necessary API to parse the multi-link element in
the future. For now, link only to the element when found
so we can use it in the client-side code later.
Later, we'll need to fill this in to deal with element
fragmentation, parse the STA profile, etc.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 14 Jul 2022 19:58:00 +0000 (21:58 +0200)]
wifi: mac80211_hwsim: fix TX link selection
Now that we have a pointer to the TX STA even when it's
not authenticated/... yet, fix the TX link selection in
hwsim to select only among the valid links for the STA,
requiring a STA pointer here. Also implement a simple
round-robin between links to make life more interesting.
While at it, also consider A3 when translating to link
addresses.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Andrei Otcheretianski [Tue, 14 Jun 2022 14:17:20 +0000 (17:17 +0300)]
wifi: mac80211_hwsim: use MLO link ID for TX
Use the link ID provided in TX frame metadata to select the correct
channel. For now, always select the link with the lowest link ID and
do some address translation.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Andrei Otcheretianski [Wed, 22 Jun 2022 13:11:43 +0000 (16:11 +0300)]
wifi: mac80211_hwsim: do rc update per link
Make mac80211_hwsim_sta_rc_update() iterate over all the STA links.
This is somewhat temporary, we really should add the link to the
API, but then hwsim still calls it internally and would need this.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 14 Jul 2022 21:47:32 +0000 (23:47 +0200)]
wifi: mac80211: do link->MLD address translation on RX
In some cases, e.g. with Qualcomm devices and management
frames, or in hwsim, frames may be reported from the driver
with link addresses, but for decryption and matching needs
we really want to have them with MLD addresses. Support the
translation on RX.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Andrei Otcheretianski [Wed, 13 Jul 2022 09:05:27 +0000 (12:05 +0300)]
wifi: mac80211: select link when transmitting to non-MLO stations
When an MLO AP is transmitting to a non-MLO station, addr2 should be set
to a link address. This should be done before the frame is encrypted as
otherwise aad verification would fail. In case of software encryption
this can't be left for the device to handle, and should be done by
mac80211 when building the frame hdr.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 14 Jul 2022 21:40:47 +0000 (23:40 +0200)]
wifi: mac80211: fix up link station creation/insertion
When we create a station with a non-default link, then
we should have a link address, and we definitely need
to insert it into the link hash table on insertion.
Split the API into with and without link creation and
if it has a link, insert the link into the link hash
table on sta_info_insert().
Fixes:
ba6ddab94fc6 ("wifi: mac80211: maintain link-sta hash table")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 14 Jul 2022 20:23:02 +0000 (22:23 +0200)]
wifi: mac80211_hwsim: implement sta_state for MLO
In MLO, we need to transmit to another MLD and select
the link to it, which requires knowing the station.
But in TX, mac80211 will not give us a station that's
not added to the driver, which in the older add/remove
API is only done later.
Implement the new API in MLO so we know about the STA
at all times and get a pointer during TX as well.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 13 Jul 2022 16:08:03 +0000 (18:08 +0200)]
wifi: mac80211: limit A-MSDU subframes for client too
In AP/mesh where the stations are added by userspace, we
limit the number of A-MSDU subframes according to the
extended capabilities.
Refactor the code and extend that also to client-side.
Fixes:
506bcfa8abeb ("mac80211: limit the A-MSDU Tx based on peer's capabilities")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 20:18:24 +0000 (22:18 +0200)]
wifi: mac80211: mlme: refactor ieee80211_set_associated()
Split out much of the code in ieee80211_set_associated()
into a new ieee80211_link_set_associated() which can be
called per link later for MLO.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 16:32:49 +0000 (18:32 +0200)]
wifi: cfg80211: add cfg80211_get_iftype_ext_capa()
Add a helper function cfg80211_get_iftype_ext_capa() to
look up interface type-specific (extended) capabilities.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 15:21:22 +0000 (17:21 +0200)]
wifi: mac80211: mlme: look up beacon elems only if needed
If NEED_DTIM_BEFORE_ASSOC isn't set, then we don't need
to enter an RCU critical section and look up the beacon
elements.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 13:21:23 +0000 (15:21 +0200)]
wifi: mac80211: mlme: refactor assoc link setup
Factor out the code to set up the assoc link into a
new function ieee80211_setup_assoc_link().
While at it, also modify the 'override' handling to
just take into account whether or not the conn_flags
were changed, which is what we need to setup again
the channel later.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 13:13:23 +0000 (15:13 +0200)]
wifi: mac80211: mlme: remove address arg to ieee80211_mark_sta_auth()
There's no need to pass the address, we can look at the auth_data
inside the function rather than outside.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 12:59:22 +0000 (14:59 +0200)]
wifi: mac80211: mlme: refactor assoc success handling
Refactor the per-link setup out of ieee80211_assoc_success()
into a new function ieee80211_assoc_config_link().
It looks useless for now to parse the elements again inside
ieee80211_assoc_config_link(), but that will be done with
the link ID in the future.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 12:48:55 +0000 (14:48 +0200)]
wifi: mac80211: mlme: refactor ieee80211_prep_channel() a bit
Refactor ieee80211_prep_channel() to make the link argument
optional and add a conn_flags pointer argument instead, so
that we can later use this for links that don't exist yet
to build the right information for MLO.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 12:38:02 +0000 (14:38 +0200)]
wifi: mac80211: mlme: refactor assoc req element building
For MLO, we will need to build these elements per link, so
factor out the code that does this, returning the capability,
to simplify building the multi-link element in the future.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 11:46:19 +0000 (13:46 +0200)]
wifi: mac80211: mlme: switch some things back to deflink
With MLO, when we'll disconnect from an AP MLD, we'll just
destroy all the links. Therefore, the only thing we (may)
need to reset is the deflink data, so switch back to that
and adjust the comments accordingly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 09:33:57 +0000 (11:33 +0200)]
wifi: mac80211: mlme: change flags in ieee80211_determine_chantype()
For MLO we'll need to read flags not directly from the link as
it may not even exist yet if we're just setting up flags for
a secondary link before sending the association request, so
pass the incoming conn_flags separately. Also, while at it,
pass the sdata/link separately as for non-tracking now the
link may be NULL.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 09:13:56 +0000 (11:13 +0200)]
wifi: mac80211: mlme: shift some code around
We'll need ieee80211_prep_channel() in other code for MLO
later, so move the code up - unchanged for now - to avoid
forward declarations in the future.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 09:06:33 +0000 (11:06 +0200)]
wifi: mac80211: mlme: refactor link station setup
Refactor the code here since we need to have it also for each
link station after association in MLO later.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 08:49:23 +0000 (10:49 +0200)]
wifi: mac80211: move IEEE80211_SDATA_OPERATING_GMODE to link
The flag here is currently per interface, but the way we
set and clear it means it should be per link, so change
it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 11 Jul 2022 13:13:20 +0000 (15:13 +0200)]
wifi: mac80211: make ieee80211_check_rate_mask() link-aware
Change ieee80211_check_rate_mask() to use a link rather than
the sdata and deflink/bss_conf.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 11:38:07 +0000 (13:38 +0200)]
wifi: mac80211: add multi-link element to AUTH frames
When sending an authentication frame from an MLD, include
the multi-link element with the MLD address and use the
link address for transmission.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 11:40:02 +0000 (13:40 +0200)]
wifi: mac80211: mlme: clean up supported channels element code
Clean up the code building the supported channels element
a little bit by using a local variable instead of the long
line.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 11:36:37 +0000 (13:36 +0200)]
wifi: mac80211: release channel context on link stop
When a link is stopped for removal, release the channel
context it may have.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 11:35:54 +0000 (13:35 +0200)]
wifi: mac80211: prohibit DEAUTH_NEED_MGD_TX_PREP in MLO
For now, prohibit DEAUTH_NEED_MGD_TX_PREP since we can't
really transmit this on a specific link yet as we don't
know which links are active.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 12 Jul 2022 15:33:13 +0000 (17:33 +0200)]
wifi: nl80211: fix some attribute policy entries
The new NL80211_CMD_ADD_LINK_STA and NL80211_CMD_MODIFY_LINK_STA
commands have strict policy validation, so fix the policy so it
can be validated correctly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 11 Jul 2022 12:18:18 +0000 (14:18 +0200)]
wifi: nl80211: reject fragmented and non-inheritance elements
The underlying mac80211 code cannot deal with fragmented
elements for purposes of sorting the elements into the
association frame, so reject those inside the link. We
might want to reject them inside the assoc frame, but
they're used today for FILS, so cannot do that.
The non-inheritance element inside the links similarly
cannot be handled by mac80211, and outside the links it
makes no sense.
Reject both since using them could lead to an incorrect
implementation.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 11 Jul 2022 09:53:20 +0000 (11:53 +0200)]
wifi: nl80211: reject link specific elements on assoc link
When we associate, we'll include all the elements for the
link we're sending the association request on in the frame
and the specific ones for other links in the multi-link
element container. Prohibit adding link-specific elements
for the association link.
Fixes:
d648c23024bd ("wifi: nl80211: support MLO in auth/assoc")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 13 Jul 2022 08:24:23 +0000 (10:24 +0200)]
wifi: cfg80211: set country_elem to NULL
The link loop will always have a valid link so that
it's always set, but static checkers don't always
see that, so set it to NULL explicitly.
Fixes:
efbabc116500 ("cfg80211: Indicate MLO connection info in connect and roam callbacks")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Gregory Greenman [Sun, 3 Jul 2022 21:38:22 +0000 (00:38 +0300)]
wifi: mac80211: remove link_id parameter from link_info_changed()
Since struct ieee80211_bss_conf already contains link_id,
passing link_id is not necessary.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Gregory Greenman [Sun, 3 Jul 2022 15:04:15 +0000 (18:04 +0300)]
wifi: mac80211: replace link_id with link_conf in switch/(un)assign_vif_chanctx()
Since mac80211 already has a protected pointer to link_conf,
pass it to the driver to avoid additional RCU locking.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 11 Jul 2022 08:08:11 +0000 (10:08 +0200)]
wifi: nl80211: advertise MLO support
At least while we don't have any more specific interface
combinations support, add a simple flag for MLO support,
we can keep this later based on something other than the
wiphy flag.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Andrei Otcheretianski [Wed, 22 Jun 2022 13:15:56 +0000 (16:15 +0300)]
wifi: mac80211: Support multi link in ieee80211_recalc_min_chandef()
Recalculate min channel context for the given or all interface
links, depending on the caller. For a station state change, we
need to recalculate all of them since we don't know which link
(or multiple) it might be on.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Andrei Otcheretianski [Tue, 14 Jun 2022 07:16:26 +0000 (10:16 +0300)]
wifi: mac80211: don't check carrier in chanctx code
We check here that we don't enable TX (netif_carrier_ok())
before we actually start using some channel context, but to
our knowledge this check has never triggered, and with MLO
it's just wrong since links can be added and removed much
more dynamically than before.
Simply remove the checks, there's no really good way to do
anything that would replace them.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Ilan Peer [Sun, 12 Jun 2022 13:49:45 +0000 (16:49 +0300)]
wifi: nl80211: allow link ID in set_wiphy with frequency
This simplifies hostapd implementation, since it didn't
switch to NL80211_CMD_SET_CHANNEL.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Andrei Otcheretianski [Thu, 30 Jun 2022 13:43:44 +0000 (16:43 +0300)]
wifi: mac80211: Allow EAPOL tx from specific link
Allow link source address on TX.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Andrei Otcheretianski [Thu, 30 Jun 2022 12:37:37 +0000 (15:37 +0300)]
wifi: mac80211: Allow EAPOL frames from link addresses
Allow transmitting EAPOL frames not only from the interface
address (which is the MLD address) but also any link addresses,
in order to support non-MLO stations on AP interfaces.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Andrei Otcheretianski [Thu, 30 Jun 2022 12:27:59 +0000 (15:27 +0300)]
wifi: cfg80211/mac80211: Support control port TX from specific link
In case of authentication with a legacy station, link addressed EAPOL
frames should be sent. Support it.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Andrei Otcheretianski [Sun, 26 Jun 2022 07:35:48 +0000 (10:35 +0300)]
wifi: nl80211: Support MLD parameters in nl80211_set_station()
Set the MLD parameters in NL80211_CMD_SET_STATION handling
to be able to change an MLD station.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 7 Jul 2022 16:19:27 +0000 (18:19 +0200)]
wifi: nl80211: check MLO support in authenticate
We should check that MLO connections are supported before
attempting to authenticate with MLO parameters, check that.
Fixes:
d648c23024bd ("wifi: nl80211: support MLO in auth/assoc")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 7 Jul 2022 13:28:14 +0000 (15:28 +0200)]
wifi: mac80211: add a helper to fragment an element
The way this works is that you add all the element data,
keeping a pointer to the length field of the element.
Then call this helper function, which will fragment the
element if there was more than 255 bytes in the element,
memmove()ing the data back if needed.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 7 Jul 2022 13:11:54 +0000 (15:11 +0200)]
wifi: mac80211: skip rate statistics for MLD STAs
For now, skip rate statistics here to avoid warnings in
the called code, we'll need to adjust this to have all
the statistics for link stations.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 7 Jul 2022 13:03:51 +0000 (15:03 +0200)]
wifi: nl80211: set BSS to NULL if IS_ERR()
If the BSS lookup returned an error, set it to NULL so we
don't try to free it.
Fixes:
d648c23024bd ("wifi: nl80211: support MLO in auth/assoc")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 4 Jul 2022 13:02:33 +0000 (15:02 +0200)]
wifi: nl80211: add EML/MLD capabilities to per-iftype capabilities
We have the per-interface type capabilities, currently for
extended capabilities, add the EML/MLD capabilities there
to have this advertised by the driver.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 6 Jul 2022 13:31:55 +0000 (15:31 +0200)]
wifi: nl80211: better validate link ID for stations
If we add a station on an MLD, we need a link ID to see
where it lives (by default). Validate the link ID against
the valid_links.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 6 Jul 2022 12:03:07 +0000 (14:03 +0200)]
wifi: mac80211: fix link manipulation
When we add non-deflink pointers, we need to remove the
link[0] pointer to deflink in case link[0] is not valid
afterwards. Also, we need to add that back when there
are no more valid links. Reorg the code to fix that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 6 Jul 2022 08:09:57 +0000 (10:09 +0200)]
wifi: mac80211: tighten locking check
When we remove a link that doesn't have a channel context,
we don't really need the local->mtx locking. Tighten the
check here.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 6 Jul 2022 07:57:42 +0000 (09:57 +0200)]
wifi: cfg80211: clean up links appropriately
This was missing earlier, we need to remove links when
interfaces are being destroyed, and we also need to
stop (AP) operations when a link is being destroyed.
Address these issues to remove many warnings that will
otherwise appear in mac80211.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 1 Jul 2022 14:22:29 +0000 (16:22 +0200)]
wifi: mac80211: consider EHT element size in assoc request
We need to consider the (maximum) size of the EHT element
we'll add for the association request, otherwise we may run
out of space.
Fixes:
820acc810fb6 ("mac80211: Add EHT capabilities to association/probe request")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 1 Jul 2022 14:14:33 +0000 (16:14 +0200)]
wifi: mac80211: mlme: simplify adding ht/vht/he/eht elements
The functions currently take a link and check data
from it, but this needs to change for MLO. Simplify
the prototypes by passing only the needed arguments.
Remove the regulatory checks, the warnings shouldn't
trigger, and haven't as far as I know.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 1 Jul 2022 13:38:57 +0000 (15:38 +0200)]
wifi: mac80211: refactor adding custom elements
Rework the sorting of custom elements into the association
request by moving the elements before HT/VHT/HE to each
their own function. While at it, fix the placement of the
ones that should be between VHT and HE.
This doesn't fix the placement of elements that should be
between HE and EHT yet, a similar change might be needed
in the future.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 1 Jul 2022 12:08:25 +0000 (14:08 +0200)]
wifi: mac80211: refactor adding rates to assoc request
There's some awkward code that really only exists
because we want to optimize the allocation size,
but that's not really all that necessary.
Refactor the code that adds rates to the association
request frame to have a separate function, removing
the goto.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 1 Jul 2022 12:01:59 +0000 (14:01 +0200)]
wifi: mac80211: use only channel width in ieee80211_parse_bitrates()
For MLO, we may not have a full chandef here later, so change
the API to pass only the width.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 1 Jul 2022 12:01:29 +0000 (14:01 +0200)]
wifi: cfg80211: add ieee80211_chanwidth_rate_flags()
To simplify things when we don't have a full chandef,
add ieee80211_chanwidth_rate_flags().
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 1 Jul 2022 11:40:19 +0000 (13:40 +0200)]
wifi: mac80211: remove redundant condition
Here, ext_capa is checked and can only be non-NULL if
assoc_data->ie_len was set before, so the check here
is redundant.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>