G10h4ck 7e2c613054 net: add UPnP IGD NAT traversal support ...

Implement opt-in UPnP IGD port forwarding for P2P nodes behind NAT,
enabling inbound connections without manual router configuration.
This is gated behind the `upnp-igd` feature flag.

Changes:
- Add PortMapping trait for pluggable port-mapping protocols (UPnP, PCP, NAT-PMP...)
- Add optional oxy-upnp-igd v0.1 dependency behind `upnp-igd`
- Parse UpnpConfig (enabled, discovery_timeout, lease_duration, description,
  refresh_interval) from listener URL
- Periodically refresh external address and publish it to the P2P network
- Add UPnP-specific error handling
- Enable `upnp-igd` feature in darkirc (opt-in; not enabled by default)

Port mappings are created lazily once a gateway is discovered and are
automatically renewed. External addresses are tagged `source=upnp` and
refreshed at a configurable interval.

Signed-off-by: Gioacchino Mazzurco <gio@polymathes.cc>
Reviewed-by: grug
Reviewed-by: upgrayedd

2026-02-13 13:33:29 +02:00

8.2 KiB

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