Introduce a sixth scanner that periodically queries an SNMP agent
(typically the router/firewall) for its ARP/neighbour cache via
SNMPv2c and feeds discovered devices into the shared devices, events
and notifications pipeline. Unlike the ARP scanner it generates no
traffic on the local segment and can surface devices across all
subnets the agent routes.
Scope is intentionally minimal: SNMPv2c only, a single target, and the
ipNetToMediaTable (ARP) only. SNMPv3 and switch MAC/forwarding-table
polling are left as follow-ups in TODO.md.
- backend: csnmp dependency; SnmpScanner config (opt-in, off unless a
[snmp_scanner] section is present); DeviceEventScanner::Snmp;
scanners/snmp/{finder,scanner,status}; main.rs wiring; status API
endpoint wired into OpenAPI
- frontend: SNMP scanner status model, card, API method, status screen
and summary card rows, and device-event label
- docs/config: sample TOML, README options, NixOS module option, and
setup notes for enabling SNMP on pfSense/OPNsense
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add NSAllowsLocalNetworking ATS exception so the iOS app can reach a
backend over HTTP on the local network, and document the supported
connection paths (direct private-IP HTTP vs. reverse proxy with HTTPS)
in the README.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Each scanner (ARP, mDNS, SSDP/UPnP, DHCP) can now be turned off via an
`enabled` flag in its config section, defaulting to true so existing
deployments are unchanged. A disabled scanner's entry function returns
early and never starts.
Documented in the README options table (also fixing the stale `timings.*`
key names to the actual `arp_scanner.*` keys), and added to the TOML
samples and the NixOS module.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Listen for DHCP DISCOVER/REQUEST broadcasts on UDP 67 to catch devices as
early as possible — a device must request an address before doing almost
anything else, often before it has an IP.
Follows the mDNS/SSDP scanner pattern (finder/scanner/status modules) and
feeds the shared devices/events/notifications pipeline. The client MAC is
taken directly from the packet's chaddr, so no ARP probe is needed; a
DISCOVER with no assigned IP reuses any previously recorded address rather
than clobbering it. Exposes GET /api/dhcp_scanner/status, wired into the
OpenAPI generation, and adds a Dhcp variant to DeviceEventScanner.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add a Network ports section noting that the mDNS (UDP 5353) and SSDP
(UDP 1900) ports are fixed by their protocols and must be available on
the host, alongside the configurable web server port.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Adds the retention.window option to the NixOS module and documents it
in the README alongside a new Storage considerations section covering
per-network-size estimates and guidance on tuning scan timings and the
retention window to meet storage requirements.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
