linux-toradex.git/net/mac80211/scan.c, branch v5.13

mac80211: fix skb length check in ieee80211_scan_rx()

2021-05-31T19:39:10+00:00

Replace hard-coded compile-time constants for header length check
with dynamic determination based on the frame type. Otherwise, we
hit a validation WARN_ON in cfg80211 later.

Fixes: cd418ba63f0c ("mac80211: convert S1G beacon to scan results")
Reported-by: syzbot+405843667e93b9790fc1@syzkaller.appspotmail.com
Signed-off-by: Du Cheng 
Link: https://lore.kernel.org/r/20210510041649.589754-1-ducheng2@gmail.com
[style fixes, reword commit message]
Signed-off-by: Johannes Berg

mac80211: convert S1G beacon to scan results

2020-09-28T11:53:25+00:00

This commit finds the correct offset for Information
Elements in S1G beacon frames so they can be reported in
scan results.

Signed-off-by: Thomas Pedersen 
Link: https://lore.kernel.org/r/20200922022818.15855-8-thomas@adapt-ip.com
Signed-off-by: Johannes Berg

mac80211: s1g: choose scanning width based on frequency

2020-09-28T11:53:05+00:00

An S1G BSS can beacon at either 1 or 2 MHz and the channel
width is unique to a given frequency. Ignore scan channel
width for now and use the allowed channel width.

Signed-off-by: Thomas Pedersen 
Link: https://lore.kernel.org/r/20200922022818.15855-3-thomas@adapt-ip.com
Signed-off-by: Johannes Berg

nl80211/cfg80211: support 6 GHz scanning

2020-09-28T11:53:04+00:00

Support 6 GHz scanning, by
 * a new scan flag to scan for colocated BSSes advertised
   by (and found) APs on 2.4 & 5 GHz
 * doing the necessary reduced neighbor report parsing for
   this, to find them
 * adding the ability to split the scan request in case the
   device by itself cannot support this.

Also add some necessary bits in mac80211 to not break with
these changes.

Signed-off-by: Tova Mussai 
Signed-off-by: Johannes Berg 
Link: https://lore.kernel.org/r/20200918113313.232917c93af9.Ida22f0212f9122f47094d81659e879a50434a6a2@changeid
Signed-off-by: Johannes Berg

mac80211: remove unused flags argument in transmit functions

2020-07-31T07:27:01+00:00

The flags argument in transmit functions is no longer being used
and can be removed.

Signed-off-by: Mathy Vanhoef 
Link: https://lore.kernel.org/r/20200723100153.31631-5-Mathy.Vanhoef@kuleuven.be
Signed-off-by: Johannes Berg

mac80211: use same flag everywhere to avoid sequence number overwrite

2020-07-31T07:27:01+00:00

Use the IEEE80211_TX_CTRL_NO_SEQNO flag in ieee80211_tx_info to mark
probe requests whose sequence number must not be overwritten. This
provides consistency with the radiotap flag that can be set to indicate
that the sequence number of an injected frame should not be overwritten.

Signed-off-by: Mathy Vanhoef 
Link: https://lore.kernel.org/r/20200723100153.31631-4-Mathy.Vanhoef@kuleuven.be
Signed-off-by: Johannes Berg

nl80211: S1G band and channel definitions

2020-07-31T07:24:13+00:00

Gives drivers the definitions needed to advertise support
for S1G bands.

Signed-off-by: Thomas Pedersen 
Link: https://lore.kernel.org/r/20200602062247.23212-1-thomas@adapt-ip.com
Link: https://lore.kernel.org/r/20200731055636.795173-1-thomas@adapt-ip.com
Signed-off-by: Johannes Berg

mac80211: Add HE 6GHz capabilities element to probe request

2020-05-31T09:27:05+00:00

On 6 GHz, the 6 GHz capabilities element should be added, do that.

Signed-off-by: Ilan Peer 
[add commit message]
Link: https://lore.kernel.org/r/20200528213443.8ee764f0cde0.I2b0c66b60e11818c97c9803e04a6a197c6376243@changeid
Signed-off-by: Johannes Berg

mac80211: avoid using ext NSS high BW if not supported

2020-05-31T09:26:50+00:00

If the AP advertises inconsistent data, namely it has CCFS1 or CCFS2,
but doesn't advertise support for 160/80+80 bandwidth or "Extended NSS
BW Support", then we cannot use any MCSes in the the higher bandwidth.
Thus, avoid connecting with higher bandwidth since it's less efficient
that way.

Link: https://lore.kernel.org/r/20200528213443.0e55d40c3ccc.I6fd0b4708ebd087e5e46466c3e91f6efbcbef668@changeid
Signed-off-by: Johannes Berg

mac80211: add freq_offset to RX status

2020-04-24T10:33:43+00:00

RX status needs a KHz component, so add freq_offset. We
can reduce the bits for the frequency since 60 GHz isn't
supported.

Signed-off-by: Thomas Pedersen 
Link: https://lore.kernel.org/r/20200402011810.22947-5-thomas@adapt-ip.com
[fix commit message]
Signed-off-by: Johannes Berg