feat(relay): add room admission state

Add a tested relay room layer before introducing QUIC socket handling. The relay
now has a focused place to enforce room membership rules instead of mixing those
rules into the future networking loop.

RoomRegistry accepts validated endpoint hellos, assigns room and peer IDs,
returns server welcome data, limits clients per room, permits only one gateway,
rejects duplicate client MACs, and keeps the room TAP MTU stable once the first
peer joins. A later peer must support the existing room MTU rather than silently
shrinking it after an earlier client may already have configured its TAP adapter.

The networking pieces still need to call this layer from the reliable control
stream and use the resulting peer metadata for datagram forwarding.

Test Plan:
- cargo fmt --check
- cargo test --workspace
- cargo clippy --workspace --all-targets -- -D warnings

Refs: PLAN.md relay responsibilities and MAC identity

This commit is contained in:

ddidderr

2026-05-21 17:21:46 +02:00

parent 7aeaa0aeb9

commit d1e6530829

4 changed files with 388 additions and 0 deletions

									
										crates/lanparty-relay/Cargo.toml
									
		+2
		
												View File
												
				@@ -4,3 +4,5 @@ version.workspace = true

				edition.workspace = true

				[dependencies]

				lanparty-ctrl = { path = "../lanparty-ctrl" }

				lanparty-proto = { path = "../lanparty-proto" }