Add dedicated db::devices::register/unregister methods so registration
state (is_registered, owner) is owned by the API endpoints, and make
update sighting-only. This stops scanner re-sightings from wiping a
device's registration. Also preserve an existing mDNS hostname instead
of overwriting it on re-sighting.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Modern devices increasingly use randomized ("Private WiFi Address") MACs,
which are locally administered and have no real OUI, so the MAC-prefix
vendor lookup returns nothing. Such devices still advertise distinctive
mDNS service types, which we now use to deduce their vendor.
- Extend the mDNS parser to also capture PTR service types alongside
A-record hostnames.
- Add a service-type -> vendor mapping (data/mdns-service-vendor.json) and
a service_vendor_finder, using canonical vendor names so device-type
resolution still chains.
- Add utils::network::is_locally_administered to detect randomized MACs.
- In the mDNS scanner, fall back to service-based deduction only when the
OUI lookup is empty and the MAC is locally administered.
- Group the three finders under a new data module.
- Preserve a known vendor (and its derived device_type) when a later
sighting cannot deduce one, and suppress the spurious "vendor changed"
notification in that case.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Move select_interface and MAC-resolution logic (resolve_mac_address,
parse_proc_net_arp, probe_mac) out of the device_finders modules into a
single utils::network utility so future scanners can reuse them. Rename
resolve to resolve_mac_address and make parse_proc_net_arp private.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Introduce a second discovery module that passively listens for mDNS
multicast announcements (224.0.0.251:5353) and feeds discovered devices
into the existing devices/events/notifications pipeline, running in its
own task alongside the ARP scanner.
Since mDNS carries an IP and hostname but no MAC (the device key), the
module resolves IP->MAC via the OS ARP cache with a targeted ARP-probe
fallback. The advertised hostname is stored in a new optional `name`
column on devices (blank for ARP-only devices); the single `update`
writes `name` only when set so ARP rescans never clobber it. Device
names are included in event/notification messages.
Adds a GET /api/mdns_scanner/status endpoint (is_listening, devices_seen,
last_device_seen_seconds_ago) wired into OpenAPI, an optional
[mdns_scanner] config section, and the corresponding Nix module option.
Also aligns the Nix module's stale `timings` section with the current
`arp_scanner` schema.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
