station: Identify devices by MAC OUI vendor lookup

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Embed the IEEE OUI registry (~1MB pre-processed text file) and resolve
the vendor for every station MAC. Locally administered MACs (U/L bit
set, used by iOS/Android private addresses and virtual interfaces) are
skipped so we don't return spurious matches against randomized prefixes.

The vendor name shows up in the device card as a secondary line, and
falls back to the title position when no DHCP hostname is available —
"Apple" with the IP and MAC is far more useful than "Sans nom".

The lookup table loads lazily (sync.Once) on the first call so the
~40k-entry parse only runs when the station discovery code is exercised.

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This commit is contained in:

nemunaire 2026-05-01 22:32:57 +08:00

parent 950f73371c

commit 70140bc289

10 changed files with 39518 additions and 3 deletions

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internal/station/backend/oui_data.txt Normal file

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