Mt7531 phy suspend - #1711

… read checks

Our series carried "preserve VLAN tags on trapped link-local frames"
without its companion, so BPDUs reached a VLAN-aware bridge tagged and
STP was blind on the MT7531.  Also stop treating a failed MDIO read as
ATC/VTCR command completion.

The board directory is acer-connect-vero-w6m since 3fdbe15, image
creation has failed with "Board directory not found" ever since.

It is 7 or 9 depending on the stock version, explain how to find the
U-Boot console entry.

Acer assigns non-consecutive per-interface addresses, so derive from a
locally administered base and set the real ones as custom-phys-address.

netopeer2 accepts the TCP connection as soon as it listens but drops the
session without a hello while it loads or replaces its host key, right
after boot and after every test reset.  Retry for ten seconds, the way
the ssh transport already retries exit code 255.

Signed-off-by: Mattias Walström <[email protected]>

With the AP and the client configured in parallel the client sometimes
associates before the 5GHz BSS is up, lands on 2.4GHz and, with
background scanning off, never scans again.  The 5GHz BSS then never
sees it and nothing asks it to move, so the test timed out.  Tell it to
scan while waiting, like the later steer-back step already does; the
steer script then moves it within seconds.

Signed-off-by: Mattias Walström <[email protected]>

The band steering directive of a 2.4 GHz radio names the same-SSID
access point on another radio, but only the changed interface's radio
was regenerated.  Enabling or adding the 5 GHz access point after the
2.4 GHz one left the 2.4 GHz radio without the directive, so no probe
suppression and no steer loop for that pair.

Signed-off-by: Mattias Walström <[email protected]>

Lists the networks in range with SSID, BSSID, frequency, channel,
signal and security, from the CLI as 'show hardware <radio> scan' and
over NETCONF/RESTCONF as the scan action next to channel-survey.  Works
on a radio without any interface, like the survey, and scans from the
station's own interface when there is one, which is what a connected
client needs to be seen by another band for steering.

Signed-off-by: Mattias Walström <[email protected]>

A WiFi interface with only a radio used to run wpa_supplicant with a
dummy network to scan in the background, and the station reported the
results as scan-results.  The scan action on the radio replaces both:
no interface is needed to scan, and nothing scans unasked.  A WiFi
interface without a mode is now created but idle.  The WebUI gets a
Scan networks button per radio in place of the station's list, and the
Raspberry Pi factory configs lose their mode-less wifi0.

Signed-off-by: Mattias Walström <[email protected]>

No ssh to the client needed, the radio's scan action scans from the
station interface and gets the client seen on the 5GHz BSS.

Signed-off-by: Mattias Walström <[email protected]>

Column widths follow the content instead of the fixed padding, so a
bridge member at the kernel's 15-character limit no longer runs into
the PROTOCOL column.  SimpleTable rows gain an optional style for the
grey container rows.  Same text as before, only the spacing moved.

Signed-off-by: Mattias Walström <[email protected]>

The lease file survives reconfiguration and reboot by design, so the
rig has to clean it up itself, like the containers.  Rename the case
to cover both.

Signed-off-by: Mattias Walström <[email protected]>

A radio may host one station next to its access points, the change
command is gone, the key holder example used a different keystore form,
show hardware takes the radio name directly, a non-WDS station in a
bridge fails at apply time, and the scan output leaf is encryption.
Note management frame protection on stations, the hashed interface
number in derived MAC addresses, and WPA3-only networks in the scan.

Signed-off-by: Mattias Walström <[email protected]>

The must allowed open although its error message, the doc and the band
itself do not.

Signed-off-by: Mattias Walström <[email protected]>

Password and passphrase leaves prompt interactively under edit since
v26.09.0.

Signed-off-by: Mattias Walström <[email protected]>

They relied on the mode-less wifi0 the Raspberry Pi factory configs no
longer create, so the configuration was rejected for a missing radio.

Signed-off-by: Mattias Walström <[email protected]>

Loading all modules took ~0.7 s per DUT before a test could even ask
has_feature() and skip.  The module list is enough for that.

Signed-off-by: Mattias Walström <[email protected]>

gethostname() still answers "infix" when the hardware handler runs at
boot, the hostname is applied last in the transaction, so every node's
access points got the same R0KH-ID.  hostapd routes a key pull by that
name, so a roaming client's key was fetched from the wrong node and the
roam was rejected with status 53.

A client moving between the bands of one node had to pull its key at
the roam, the siblings were never key holders of each other.  They are
no roaming candidates though, a node asking its clients to leave is
going down with all of them.

Stop and start the 5 GHz BSS in hostapd alone: a configuration change
restarts hostapd and every BSS with it, so the client logs in afresh
instead of roaming.