linux.git/net/wireless/trace.h, branch v6.6

wifi: cfg80211/nl80211: Add support to indicate STA MLD setup links removal

2023-06-19T10:08:40+00:00

STA MLD setup links may get removed if AP MLD remove the corresponding
affiliated APs with Multi-Link reconfiguration as described in
P802.11be_D3.0, section 35.3.6.2.2 Removing affiliated APs. Currently,
there is no support to notify such operation to cfg80211 and userspace.

Add support for the drivers to indicate STA MLD setup links removal to
cfg80211 and notify the same to userspace. Upon receiving such
indication from the driver, clear the MLO links information of the
removed links in the WDEV.

Signed-off-by: Veerendranath Jakkam 
Link: https://lore.kernel.org/r/20230317142153.237900-1-quic_vjakkam@quicinc.com
[rename function and attribute, fix kernel-doc]
Signed-off-by: Johannes Berg

wifi: cfg80211: add inform_bss op to update BSS

2023-06-19T10:05:28+00:00

This new function is called from within the inform_bss(_frame)_data
functions in order for the driver to update data that it is tracking.

Signed-off-by: Benjamin Berg 
Signed-off-by: Gregory Greenman 
Link: https://lore.kernel.org/r/20230616094949.8d7781b0f965.I80041183072b75c081996a1a5a230b34aff5c668@changeid
Signed-off-by: Johannes Berg

wifi: cfg80211: make TDLS management link-aware

2023-06-19T10:05:27+00:00

For multi-link operation(MLO) TDLS management
frames need to be transmitted on a specific link.
The TDLS setup request will add BSSID along with
peer address and userspace will pass the link-id
based on BSSID value to the driver(or mac80211).

Signed-off-by: Mukesh Sisodiya 
Signed-off-by: Gregory Greenman 
Link: https://lore.kernel.org/r/20230616094948.cb3d87c22812.Ia3d15ac4a9a182145bf2d418bcb3ddf4539cd0a7@changeid
Signed-off-by: Johannes Berg

wifi: cfg80211: replace strlcpy() with strscpy()

2023-06-14T10:32:19+00:00

strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated [1].
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().

Direct replacement is safe here since WIPHY_ASSIGN is only used by
TRACE macros and the return values are ignored.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89

Signed-off-by: Azeem Shaikh 
Reviewed-by: Kees Cook 
Link: https://lore.kernel.org/r/20230612232301.2572316-1-azeemshaikh38@gmail.com
Signed-off-by: Johannes Berg

wifi: cfg80211/mac80211: report link ID on control port RX

2023-03-07T09:55:06+00:00

For control port RX, report the link ID for MLO.

Signed-off-by: Johannes Berg 
Signed-off-by: Gregory Greenman 
Link: https://lore.kernel.org/r/20230301115906.fe06dfc3791b.Iddcab94789cafe336417be406072ce8a6312fc2d@changeid
Signed-off-by: Johannes Berg

wifi: nl80211: add a command to enable/disable HW timestamping

2023-03-07T09:52:00+00:00

Add a command to enable and disable HW timestamping of TM and FTM
frames. HW timestamping can be enabled for a specific mac address
or for all addresses.

The low level driver will indicate how many peers HW timestamping
can be enabled concurrently, and this information will be passed
to userspace.

Signed-off-by: Avraham Stern 
Signed-off-by: Gregory Greenman 
Link: https://lore.kernel.org/r/20230301115906.05678d7b1c17.Iccc08869ea8156f1c71a3111a47f86dd56234bd0@changeid
[switch to needing netdev UP, minor edits]
Signed-off-by: Johannes Berg

wifi: cfg80211: include puncturing bitmap in channel switch events

2023-02-14T11:14:39+00:00

Add puncturing bitmap in channel switch notifications
and corresponding trace functions.

Signed-off-by: Aloka Dixit 
Link: https://lore.kernel.org/r/20230131001227.25014-4-quic_alokad@quicinc.com
[fix qtnfmac]
Signed-off-by: Johannes Berg

wifi: cfg80211: Extend cfg80211_update_owe_info_event() for MLD AP

2023-02-14T11:00:25+00:00

Add support to offload OWE processing to user space for MLD AP when
driver's SME in use.

Add new parameters in struct cfg80211_update_owe_info to provide below
information in cfg80211_update_owe_info_event() call:
- MLO link ID of the AP, with which station requested (re)association.
  This is applicable for both MLO and non-MLO station connections when
  the AP affiliated with an MLD.
- Station's MLD address if the connection is MLO capable.

Signed-off-by: Veerendranath Jakkam 
Link: https://lore.kernel.org/r/20230126143256.960563-3-quic_vjakkam@quicinc.com
[reformat the trace event macro]
Signed-off-by: Johannes Berg

wifi: cfg80211: Authentication offload to user space for MLO connection in STA mode

2023-02-14T10:06:23+00:00

Currently authentication request event interface doesn't have support to
indicate the user space whether it should enable MLO or not during the
authentication with the specified AP. But driver needs such capability
since the connection is MLO or not decided by the driver in case of SME
offload to the driver.

Add support for driver to indicate MLD address of the AP in
authentication offload request to inform user space to enable MLO during
authentication process. Driver shall look at NL80211_ATTR_MLO_SUPPORT
flag capability in NL80211_CMD_CONNECT to know whether the user space
supports enabling MLO during the authentication offload.

User space should enable MLO during the authentication only when it
receives the AP MLD address in authentication offload request. User
space shouldn't enable MLO if the authentication offload request doesn't
indicate the AP MLD address even if the AP is MLO capable.

When MLO is enabled, user space should use the MAC address of the
interface (on which driver sent request) as self MLD address. User space
and driver to use MLD addresses in RA, TA and BSSID fields of the frames
between them, and driver translates the MLD addresses to/from link
addresses based on the link chosen for the authentication.

Signed-off-by: Veerendranath Jakkam 
Link: https://lore.kernel.org/r/20230116125058.1604843-1-quic_vjakkam@quicinc.com
Signed-off-by: Johannes Berg

wifi: cfg80211: trace: remove MAC_PR_{FMT,ARG}

2023-02-14T09:59:28+00:00

With %pM, this really is no longer needed, and actually
longer to spell out. Remove it.

Signed-off-by: Johannes Berg