Probe the selected WiFi device with iw to determine which hotspot
protocols it can host: WPA2 requires AP mode; WPA3 requires SAE in AP
mode (SAE_OFFLOAD_AP, or a mac80211 driver with the CMAC cipher for
software SAE). The Raspberry Pi's brcmfmac supports neither, so Pis
correctly offer WPA2 only (verified against real Pi 4/Pi 5 iw output).
The protocol is saved as hotspot.protocol in controller.yaml.
enable_hotspot() now always sets the Hotspot connection's key-mgmt
explicitly (sae + required PMF for WPA3) so a reused profile cannot
keep a stale protocol, and reverts to WPA2 if the driver rejects SAE.
New GET /api/hotspot/protocols endpoint; protocol dropdowns added to
both the ControllerPage React UI and the fallback controller UI.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* POST /api/hotspot/settings checks is_docker_mode() directly instead of
string-matching the error message (still 500, matching the sibling
hotspot/bluetooth/throttle endpoints).
* Escape \ ; , " in the WiFi QR code per the WPA QR format.
* Skip the controller.yaml write when a settings update changes nothing.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Hotspot was reported as "not supported" on x86 machines (Ubuntu/Debian PCs)
because the Controller only watched the hardcoded default wlan0 device, while
predictable interface naming produces names like wlp2s0. The Settings page
saved hotspot_device to wrolpi.yaml, which the Controller never read.
The Controller now owns hotspot settings in controller.yaml:
* New endpoints: GET/POST /api/hotspot/settings, GET /api/hotspot/devices
(WiFi interfaces discovered via nmcli).
* Legacy hotspot_* values in wrolpi.yaml are migrated into controller.yaml
once on startup, unless controller.yaml already sets them.
* The Hotspot SSID/password/device fields moved from the Settings page to the
Control page next to the Hotspot toggle; the device is now a dropdown of
the WiFi devices found on the machine.
* The Controller fallback UI gets the same hotspot settings form for parity.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
