tendermint

291 MiB

Tree: 27b05d6b39

Author	SHA1	Message	Date
Erik Grinaker	9b6d6a3ad0	p2p: tighten up Router and add tests (#6044 ) This cleans up the `Router` code and adds a bunch of tests. These sorts of systems are a real pain to test, since they have a bunch of asynchronous goroutines living their own lives, so the test coverage is decent but not fantastic. Luckily we've been able to move all of the complex peer management and transport logic outside of the router, as synchronous components that are much easier to test, so the core router logic is fairly small and simple. This also provides some initial test tooling in `p2p/p2ptest` that automatically sets up in-memory networks and channels for use in integration tests. It also includes channel-oriented test asserters in `p2p/p2ptest/require.go`, but these have primarily been written for router testing and should probably be adapted or extended for reactor testing.	4 years ago
Erik Grinaker	2aad26e2f1	p2p: tighten up and test PeerManager (#6034 ) This tightens up the `PeerManager` and related code, adds a ton of tests, and fixes a bunch of inconsistencies and bugs.	4 years ago
Erik Grinaker	fc71882f74	p2p: add tests and fix bugs for `NodeAddress` and `NodeID` (#6021 ) This renames `PeerAddress` to `NodeAddress`, moves it and `NodeID` into a separate file `address.go`, adds tests for them, and fixes a bunch of bugs and inconsistencies.	4 years ago
Erik Grinaker	50b8907581	p2p: clean up new Transport infrastructure (#6017 ) This revises the new P2P `Transport` interface and does some preliminary code cleanups and simplifications. The major change here is to add `Connection.Handshake()` for performing node handshakes (once the stream transport API is implemented, this can be done entirely independent of the transport). This moves most of the handshaking logic into the `Router`, such as prevention of head-of-line blocking, validation of peer's `NodeInfo`, controlling timeouts, and so on. This significantly simplifies transports, completely removes the need for internal goroutines, and shares common logic across all transports. This also allows varying the handshake `NodeInfo` across peers, e.g. to vary `ListenAddr`. Similarly, connection filtering is also moved into the switch/router so that it can be shared between transports.	4 years ago
Erik Grinaker	fe5b312337	p2p: resolve PEX addresses in PEX reactor (#5980 ) This changes the new prototype PEX reactor to resolve peer address URLs into IP/port PEX addresses itself. Branched off of #5974. I've spent some time thinking about address handling in the P2P stack. We currently use `PeerAddress` URLs everywhere, except for two places: when dialing a peer, and when exchanging addresses via PEX. We had two options: 1. Resolve addresses to endpoints inside `PeerManager`. This would introduce a lot of added complexity: we would have to track connection statistics per endpoint, have goroutines that asynchronously resolve and refresh these endpoints, deal with resolve scheduling before dialing (which is trickier than it sounds since it involves multiple goroutines in the peer manager and router and messes with peer rating order), handle IP address visibility issues, and so on. 2. Resolve addresses to endpoints (IP/port) only where they're used: when dialing, and in PEX. Everywhere else we use URLs. I went with 2, because this significantly simplifies the handling of hostname resolution, and because I really think the PEX reactor should migrate to exchanging URLs instead of IP/port numbers anyway -- this allows operators to use DNS names for validators (and can easily migrate them to new IPs and/or load balance requests), and also allows different protocols (e.g. QUIC and `MemoryTransport`). Happy to discuss this.	4 years ago
Erik Grinaker	7ea8746ed1	proto/p2p: rename PEX messages and fields (#5974 ) Fixes #5899 by renaming a bunch of P2P Protobuf entities (while maintaining wire compatibility): * `Message` to `PexMessage` (as it's only used for PEX messages). * `PexAddrs` to `PexResponse`. * `PexResponse.Addrs` to `PexResponse.Addresses`. * `NetAddress` to `PexAddress` (as it's only used by PEX).	4 years ago
Erik Grinaker	51aca684b8	p2p: add prototype PEX reactor for new stack (#5971 ) This adds a prototype PEX reactor for the new P2P stack.	4 years ago

7 Commits (27b05d6b3939966d617605e2358e48ba83c4224e)