lnsocket

A minimal C library for connecting to the lightning network
git clone git://jb55.com/lnsocket
Log | Files | Refs | Submodules | README | LICENSE

commit b996fb8d1d7a6b578f48ce85fc951450a853bcdf
parent 8b4abb12a05c0cd2dcc2926deee22841ee2ef9d2
Author: Luca Vaccaro <me@lvaccaro.com>
Date:   Mon, 27 Jun 2022 16:45:11 +0200

add rust bindings

Closes #5

Signed-off-by: William Casarin <jb55@jb55.com>
Signed-off-by: Luca Vaccaro <me@lvaccaro.com>

Diffstat:
M.gitignore | 3+++
ACargo.lock | 757+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ACargo.toml | 23+++++++++++++++++++++++
MMakefile | 6++++++
Abuild.rs | 38++++++++++++++++++++++++++++++++++++++
Arust/lib.rs | 66++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
6 files changed, 893 insertions(+), 0 deletions(-)

diff --git a/.gitignore b/.gitignore @@ -20,3 +20,5 @@ examples/lnsocket.js examples/lnsocket.wasm examples/websockets_big.js examples/websockets_big.html +rust/bindings.rs +Cargo.lock+ \ No newline at end of file diff --git a/Cargo.lock b/Cargo.lock @@ -0,0 +1,757 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +version = 3 + +[[package]] +name = "aho-corasick" +version = "0.7.18" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f" +dependencies = [ + "memchr", +] + +[[package]] +name = "anyhow" +version = "1.0.58" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "bb07d2053ccdbe10e2af2995a2f116c1330396493dc1269f6a91d0ae82e19704" + +[[package]] +name = "atty" +version = "0.2.14" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = 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"https://github.com/jb55/lnsocket" +readme = "README.md" +build = "build.rs" +edition = "2018" + +[lib] +name = "lnsocket" +path = "rust/lib.rs" +test = true +crate-type = ["lib"] + +[dependencies] +libc = "0.2" +ffi_helpers = "0.3.0" + +[build-dependencies] +cc = { version = "1.0", features = ["parallel"] } +pkg-config = "0.3" +bindgen = "0.60.0" +syntex_syntax = "0.59.1" diff --git a/Makefile b/Makefile @@ -28,6 +28,12 @@ js: target/js/lnsocket.js target/js/lnsocket.wasm node: target/node/lnsocket.js target/node/lnsocket.wasm +liblnsocket.a: lnsocket.a + cp lnsocket.a liblnsocket.a + +rust: liblnsocket.a + cargo build --release + target/node/lnsocket.js: target/tmp/node/lnsocket.js lnsocket_lib.js @mkdir -p target/node cat $^ > $@ diff --git a/build.rs b/build.rs @@ -0,0 +1,38 @@ +extern crate bindgen; + +use std::env; +use std::path::PathBuf; + +fn main() { + + // Tell cargo to look for shared libraries in the specified directory + let lib_path = PathBuf::from(env::current_dir().unwrap()); + println!("cargo:rustc-link-search={}", lib_path.display()); + + // Tell cargo to tell rustc to link the shared library. + println!("cargo:rustc-link-lib=lnsocket"); + println!("cargo:rustc-link-lib=secp256k1"); + println!("cargo:rustc-link-lib=sodium"); + + // The bindgen::Builder is the main entry point + // to bindgen, and lets you build up options for + // the resulting bindings. + let bindings = bindgen::Builder::default() + // The input header we would like to generate + // bindings for. + .header("lnsocket.h") + .header("lnsocket_internal.h") + .clang_arg("-Ideps/secp256k1/include") + .clang_arg("-Ideps/libsodium/src/libsodium/include") + .header("deps/secp256k1/include/secp256k1.h") + .trust_clang_mangling(false) + // Finish the builder and generate the bindings. + .generate() + // Unwrap the Result and panic on failure. + .expect("Unable to generate bindings"); + + // Write the bindings to the $OUT_DIR/bindings.rs file. + bindings + .write_to_file("./rust/bindings.rs") + .expect("Couldn't write bindings!"); +} diff --git a/rust/lib.rs b/rust/lib.rs @@ -0,0 +1,66 @@ +#![allow(non_upper_case_globals)] +#![allow(non_camel_case_types)] +#![allow(non_snake_case)] + +include!("bindings.rs"); + +#[cfg(test)] +mod tests { + use super::*; + //use libc::*; + use std::ffi::{CString, CStr}; + + #[test] + fn testing() { + unsafe { + let node_id = "023e60311d349ae482eebec19ad81dd2544b98fdd8151516fcf23d7bf6f55b0ed5"; + let host = "127.0.0.1"; + let rune = "lhE8z3BpHyqffEDDvhumRhl16MtNEU7g1CrZ6i-y2pg9MSZtZXRob2RebGlzdHxtZXRob2ReZ2V0fG1ldGhvZD1zdW1tYXJ5Jm1ldGhvZC9nZXRzaGFyZWRzZWNyZXQmbWV0aG9kL2xpc3RkYXRhc3RvcmU="; + + let mut socket: lnsocket = { + let sock = lnsocket_create(); + ffi_helpers::null_pointer_check!(sock); + *sock + }; + + lnsocket_genkey(&mut socket); + + let res_connect = { + let c_node_id = CString::new(node_id).unwrap(); + let c_host = CString::new(host).unwrap(); + lnsocket_connect(&mut socket, c_node_id.as_ptr(), c_host.as_ptr()) + }; + assert_eq!(res_connect, 1); + + let res_perform_init = lnsocket_perform_init(&mut socket); + assert_eq!(res_perform_init, 1); + + let method = "getinfo"; + let params = "[]"; + let msg = format!("{{\"method\":\"{}\",\"params\":{},\"rune\":\"{}\"}}", method, params, rune); + let res_write = { + let mut cmd = vec![]; + cmd.append(&mut 0x4c4fu16.to_be_bytes().to_vec()); + cmd.append(&mut 1u64.to_be_bytes().to_vec()); + cmd.append(&mut msg.as_bytes().to_vec()); + assert_eq!(cmd.len(), msg.len() + 10); + lnsocket_write(&mut socket, cmd.as_ptr(), cmd.len() as u16) + }; + assert_eq!(res_write, 1); + + let response = { + let mut len = 0u16; + let mut t: u8 = 0; + let addr = &mut t as *mut u8 as usize; + let mut uptr = addr as *mut u8; + let res_recv = lnsocket_read(&mut socket, &mut uptr, &mut len); + assert_eq!(res_recv, 1); + let iptr = uptr as *mut i8; + CStr::from_ptr(iptr.offset(10)).to_str().unwrap().to_string() + }; + assert!(response.len() > 0); + + lnsocket_destroy(&mut socket); + } + } +}