c-lean-libp2p

c-lean-libp2p is a C11 implementation of the minimal Libp2p components needed for Lean (post-quantum) Ethereum.

Dependencies

Dependencies are vendored as git submodules:

• external/aws-lc
• external/ngtcp2
• external/secp256k1

After cloning, initialize them with:

git submodule update --init --recursive

Build

cmake -S . -B build
cmake --build build --parallel

The main target is the static library:

c_lean_libp2p

Tests are enabled by default. To build only the library:

cmake -S . -B build -DBUILD_TESTING=OFF
cmake --build build --parallel

Test

ctest --test-dir build --output-on-failure

The test suite includes unit tests and spec-oriented tests for multiformats, peer IDs, QUIC transport behavior, and QUIC TLS identity vectors.

Development Checks

Useful local checks:

cmake -S . -B build -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
cmake --build build --parallel
ctest --test-dir build --output-on-failure

The CI suite also runs sanitizer builds, static analysis, 32-bit builds, Windows builds, and MISRA C analysis for project headers and sources.