feat(client): persist virtual MAC identity

Remote clients need a stable locally administered MAC address so the relay,
gateway, DHCP lease, and LAN peers keep seeing the same tunnel identity across
runs. Requiring users to pass `--virtual-mac` made that responsibility manual.

Add a platform-neutral client identity store that loads a JSON identity file or
generates a new valid virtual MAC with OS randomness and persists it. The file
stores the MAC in the same string form shown by the CLI. The Windows client now
uses `lanparty-client-identity.json` by default while keeping `--virtual-mac` as
a manual test override.

TAP binding still remains future work; this slice only owns the client identity
that will be assigned to the TAP adapter.

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

Refs: PLAN.md MAC identity

This commit is contained in:

ddidderr

2026-05-21 18:35:20 +02:00

parent 25157ad1a6

commit a3d24a1173

6 changed files with 196 additions and 10 deletions

Cargo.lock

Generated

View File

@@ -435,11 +435,14 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "bytes",
  "getrandom 0.3.4",
  "lanparty-ctrl",
  "lanparty-proto",
  "quinn",
  "rcgen",
  "rustls",
  "serde",
  "serde_json",
  "tokio",
 ]