Central repository for work on libp2p

This repository is the central place for Rust development of the libp2p spec.

Warning: While we are trying our best to be compatible with other libp2p implementations, we cannot guarantee that this is the case considering the lack of a precise libp2p specifications.

Documentation

How to use the library?

• Main documentation: https://docs.rs/libp2p

Where to ask questions?

• In the Rust section of https://discuss.libp2p.io.
• In the #libp2p IRC channel on freenode.
• By opening an issue in this repository.

Repository Structure

The main components of this repository are structured as follows:

• core/: The implementation of mwc-libp2p-core with its Network, Transport and StreamMuxer API on which almost all other crates depend.

• transports/: Implementations of transport protocols (e.g. TCP) and protocol upgrades (e.g. for authenticated encryption, compression, ...) based on the mwc-libp2p-core Transport API .

• muxers/: Implementations of the StreamMuxer interface of mwc-libp2p-core, e.g. (sub)stream multiplexing protocols on top of (typically TCP) connections. Multiplexing protocols are (mandatory) Transport upgrades.

• swarm/: The implementation of mwc-libp2p-swarm building on mwc-libp2p-core with the central interfaces NetworkBehaviour and ProtocolsHandler used to implement application protocols (see protocols/).

• protocols/: Implementations of application protocols based on the mwc-libp2p-swarm APIs.

• misc/: Utility libraries.

• examples/: Worked examples of built-in application protocols (see protocols/) with common Transport configurations.

Notable users

(open a pull request if you want your project to be added here)

• https://github.com/paritytech/polkadot
• https://github.com/paritytech/substrate
• https://github.com/sigp/lighthouse
• https://github.com/golemfactory/golem-libp2p
• https://github.com/comit-network
• https://github.com/rs-ipfs/rust-ipfs
• https://github.com/marcopoloprotocol/marcopolo
• https://github.com/ChainSafe/forest

lib.rs:

mwc-libp2p-dns

This crate provides the type DnsConfig that allows one to resolve the /dns4/ and /dns6/ components of multiaddresses.

Usage

In order to use this crate, create a DnsConfig with one of its constructors and pass it an implementation of the Transport trait.

Whenever we want to dial an address through the DnsConfig and that address contains a /dns/, /dns4/, or /dns6/ component, a DNS resolve will be performed and the component will be replaced with /ip4/ and/or /ip6/ components.