Roflin
29ce281a7f
sudo ./scripts/mini-dhcpd.py enp0s31f6 Serves one address, logs every exchange, and does not touch the rest of the system. Needed because the Swiss DHCP timeout proves nothing while there is no server on the segment to answer. Deliberately AF_PACKET rather than a UDP socket on port 67. A UDP socket only sees frames the kernel accepts as well-formed IP/UDP, and one of the open questions is whether the GC's frames arrive INTACT: libogc streams TX payload with EXI_Dma and the GC's DMA-write engine is documented to have a 1-bit-shift bug. A corrupted DISCOVER would never reach a UDP socket and the server would look "fine, just no client". On a raw socket every frame from the adapter is parsed by hand and anything that fails is reported as MALFORMED with the reason and a hexdump -- which is exactly the evidence that would confirm or kill the corruption hypothesis. Replies go out as raw ethernet UNICAST to the client's MAC, so a successful lease also demonstrates the new MACRAW MF filter accepts unicast to SHAR and not just broadcast. Self-tested without a network: a well-formed DISCOVER parses with the right chaddr/xid, a corrupted magic cookie is reported as malformed rather than ignored, frames from other MACs are skipped, and the generated OFFER is a valid 342-byte frame -- unicast to the client, correct IP checksum and total length, ports 67->68, BOOTP padded to the 300-byte minimum, yiaddr as configured. On-wire behaviour is NOT tested here; the devcontainer has only a veth. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>