PoC Hole Punching Implementation

[cannium]

related to https://github.com/ipbit/ipfsbit/issues/21 branch https://github.com/ipbit/go-libp2p/tree/punching pull request https://github.com/libp2p/go-libp2p/pull/490

• [x] collect observed QUIC addr
  • send it in identify
• [x] run go-libp2p-autonat-svc by default
• [x] pass IPFS DHT to libp2p properly: copied from https://github.com/ipfs/go-ipfs/pull/5785/files
• [x] register Connected callback like AutoNATProto do
  • sleep IdentifyDelay
  • [x] if support "PunchingProto" && both behind NAT, send punching request, contains observed QUIC addr
• [x] dial back routine
• [x] keepalive: 30s by default in quic-go
• [x] prioritize QUIC connection when starting new streams

configs need change

  "Addresses": {
    "Swarm": [
      "/ip4/0.0.0.0/tcp/4001",
      "/ip6/::/tcp/4001",
      "/ip4/0.0.0.0/udp/4002/quic",
      "/ip6/::/udp/4002/quic"
    ]
  }

  "Swarm": {
    "DisableRelay": false,
    "EnableRelayHop": false,
  }

  "Experimental": {
    "QUIC": true
  }

[cannium]

FIXME

• [ ] filter out wildcard IP in address announcement
• [ ] opened a new TCP port when NewStream is called
• [ ] prioritize QUIC conditionally