Forest is an implementation of Filecoin written in Rust. The implementation will take a modular approach to building a full Filecoin node in two parts — (i) building Filecoin’s security critical systems in Rust from the Filecoin Protocol Specification, specifically the virtual machine, blockchain, and node system, and (ii) integrating functional components for storage mining and storage & retrieval markets to compose a fully functional Filecoin node implementation.

❗Current development should be considered a work in progress.

Our crates:

crate	description
blockchain	Chain structures and syncing functionality
crypto	Verification and signature definitions
encoding	Forest encoding and decoding
ipld	IPLD data model for content-addressable data
node	Networking synchronization and storage
vm	State transition and actors, message and address definitions

Dependencies

rustc >= 1.46.0

Usage

# Clone repository
git clone --recursive https://github.com/chainsafe/forest
cd forest

# Install binary to $HOME/.cargo/bin and run node
make install
forest

OpenCL, hwloc and a compatible assembly linker (ex. clang) are also required to build Filecoin proofs.

Config

Run the node with custom config and bootnodes

forest --config /path/to/your_config.toml

Example of config options available:

data_dir = "<directory for all chain and networking data>"
genesis_file = "<relative file path of genesis car file>"

[network]
listening_multiaddr = "<multiaddress>"
bootstrap_peers = ["<multiaddress>"]

Example of a multiaddress: "/ip4/54.186.82.90/tcp/1347/p2p/12D3K1oWKNF7vNFEhnvB45E9mw2B5z6t419W3ziZPLdUDVnLLKGs"

Logging

The Forest logger uses Rust's log filtering options with the RUST_LOG environment variable.
For example:

RUST_LOG="debug,forest_libp2p::service=info" forest

Will show all debug logs by default, but the forest_libp2p::service logs will be limited to info

Testing

# To run base tests
cargo test # use `make test-release` for longer compilation but faster execution

# To pull serialization vectors submodule and run serialization and conformance tests
make test-vectors

# To run all tests and all features enabled
make test-all

Joining the testnet

Build with the interopnet config with:

make interopnet

# Run and import past the state migrations to latest network version
./target/release/forest --import-snapshot ./types/networks/src/interopnet/snapshot.car

Importing the snapshot only needs to happen during the first run. Following this, to restart the daemon run:

./target/release/forest

Documentation

https://chainsafe.github.io/forest/

Contributing

• Check out our contribution guidelines: CONTRIBUTING.md
• Have questions? Say hi on Discord!

ChainSafe Security Policy

Reporting a Security Bug

We take all security issues seriously, if you believe you have found a security issue within a ChainSafe project please notify us immediately. If an issue is confirmed, we will take all necessary precautions to ensure a statement and patch release is made in a timely manner.

Please email us a description of the flaw and any related information (e.g. reproduction steps, version) to security at chainsafe dot io.

License

Forest is dual licensed under MIT + Apache 2.0.