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Initial version of libcsp-rust

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Robin Müller
2024-05-29 00:25:05 +02:00
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/target
/Cargo.lock

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Change Log
=======
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](http://keepachangelog.com/)
and this project adheres to [Semantic Versioning](http://semver.org/).
# [unreleased]
# [v0.1.0] 2024-06-01
Initial release

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[package]
name = "libcsp-cargo-build"
version = "0.1.0"
edition = "2021"
description = "Tools to build libcsp using cargo"
homepage = "https://egit.irs.uni-stuttgart.de/rust/libcsp-rust"
repository = "https://egit.irs.uni-stuttgart.de/rust/libcsp-rust"
license = "Apache-2.0"
keywords = ["no-std", "space", "aerospace", "ffi", "csp"]
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
categories = ["aerospace", "external-ffi-bindings", "no-std", "hardware-support", "embedded"]
[dependencies]
cc = "1"

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This software contains code developed at the University of Stuttgart's Institute of Space Systems.

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libcsp-cargo-build
========
This crate provides a library to allow building the [`libcsp`](https://github.com/libcsp/libcsp)
with cargo. You can find some more high-level information and examples in the
[main workspace](https://egit.irs.uni-stuttgart.de/rust/libcsp-rust).
The API documentation should provide all additional advanced information you might require to tweak
the `libcsp` build.

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//! This crate provides a library to allow building the [`libcsp`](https://github.com/libcsp/libcsp)
//! C library with cargo. You can find some more high-level information and examples in the
//! [main repository](https://egit.irs.uni-stuttgart.de/rust/libcsp-rust).
use std::{
io::{self, Write},
path::{Path, PathBuf},
};
pub mod cfg_keys {
pub const POSIX: &str = "CSP_POSIX";
pub const ZEPHYR: &str = "CSP_ZEPHYR";
pub const HAVE_STDIO: &str = "CSP_HAVE_STDIO";
pub const ENABLE_CSP_PRINT: &str = "CSP_ENABLE_CSP_PRINT";
pub const PRINT_STDIO: &str = "CSP_PRINT_STDIO";
pub const REPRODUCIBLE_BUILDS: &str = "CSP_REPRODUCIBLE_BUILDS";
pub const QFIFO_LEN: &str = "CSP_QFIFO_LEN";
pub const PORT_MAX_BIND: &str = "CSP_PORT_MAX_BIND";
pub const CONN_RXQUEUE_LEN: &str = "CSP_CONN_RXQUEUE_LEN";
pub const CONN_MAX: &str = "CSP_CONN_MAX";
pub const BUFFER_SIZE: &str = "CSP_BUFFER_SIZE";
pub const BUFFER_COUNT: &str = "CSP_BUFFER_COUNT";
pub const RDP_MAX_WINDOW: &str = "CSP_RDP_MAX_WINDOW";
pub const RTABLE_SIZE: &str = "CSP_RTABLE_SIZE";
pub const USE_RDP: &str = "CSP_USE_RDP";
pub const USE_HMAC: &str = "CSP_USE_HMAC";
pub const USE_PROMISC: &str = "CSP_USE_PROMISC";
pub const USE_RTABLE: &str = "CSP_USE_RTABLE";
pub const HAVE_LIBSOCKETCAN: &str = "CSP_HAVE_LIBSOCKETCAN";
pub const HAVE_LIBZMQ: &str = "CSP_HAVE_LIBZMQ";
}
const SRCS_LIST: &[&str] = &[
"csp_bridge.c",
"csp_buffer.c",
"csp_crc32.c",
"csp_debug.c",
"csp_id.c",
"csp_iflist.c",
"csp_conn.c",
"csp_init.c",
"csp_io.c",
"csp_port.c",
"csp_promisc.c",
"csp_qfifo.c",
"csp_port.c",
"csp_route.c",
"csp_dedup.c",
"csp_services.c",
"csp_service_handler.c",
"interfaces/csp_if_lo.c",
"interfaces/csp_if_kiss.c",
"interfaces/csp_if_tun.c",
"interfaces/csp_if_udp.c",
"crypto/csp_hmac.c",
"crypto/csp_sha1.c",
];
const ARCH_SRCS_UNIX: &[&str] = &[
"arch/posix/csp_clock.c",
"arch/posix/csp_semaphore.c",
"arch/posix/csp_system.c",
"arch/posix/csp_time.c",
"arch/posix/csp_queue.c",
"arch/posix/pthread_queue.c",
];
pub struct Config {
pub have_stdio: bool,
pub print_stdio: bool,
pub reproducible_builds: bool,
pub qfifo_len: u32,
pub port_max_bind: u32,
pub conn_rx_queue_len: u32,
pub conn_max: u32,
pub buffer_size: u32,
pub buffer_count: u32,
pub rdp_max_window: u32,
pub rtable_size: u32,
pub hmac: bool,
pub rtable: bool,
pub csp_print: bool,
pub promisc: bool,
pub rdp: bool,
pub yaml: bool,
}
impl Default for Config {
fn default() -> Self {
Self {
have_stdio: true,
print_stdio: true,
reproducible_builds: false,
qfifo_len: 16,
port_max_bind: 16,
conn_rx_queue_len: 16,
conn_max: 8,
buffer_size: 256,
buffer_count: 15,
rdp_max_window: 5,
rtable_size: 10,
hmac: true,
rtable: false,
csp_print: true,
promisc: true,
rdp: true,
yaml: false,
}
}
}
/// Primary builder structure used to compile the `libcsp` C library.
///
/// The [Self::cfg] field can be used to configure the library build. The will also take care
/// of generating the autoconfig.h file required for the library configuration automatically based
/// on the build [Config]. An API is also provided to generate the autoconfig.rs file required
/// for compiling the [`libcsp-sys`](https://crates.io/crates/libcp-sys) Rust FFI bindings crate.
///
/// ## Example
///
/// The [example buildscript](https://egit.irs.uni-stuttgart.de/rust/libcsp-rust/src/branch/main/examples/build.rs)
/// uses this builder structure to compile the library.
pub struct Builder {
generate_autoconf_file: bool,
libcsp_path: PathBuf,
libcsp_src_path_base: PathBuf,
out_dir: PathBuf,
pub cfg: Config,
pub compiler_warnings: bool,
build: cc::Build,
}
impl Builder {
/// Create a new builder instance.
pub fn new(libcsp_path: PathBuf, out_dir: PathBuf) -> Self {
let mut libcsp_src_path_base = libcsp_path.clone();
libcsp_src_path_base.push("src");
Self {
generate_autoconf_file: true,
libcsp_path,
libcsp_src_path_base,
out_dir,
cfg: Default::default(),
compiler_warnings: true,
build: Default::default(),
}
}
/// Access to the underlying [cc::Build] builder object.
pub fn cc(&mut self) -> &cc::Build {
&self.build
}
/// Mutable access to the underlying [cc::Build] builder object.
pub fn cc_mut(&mut self) -> &mut cc::Build {
&mut self.build
}
pub fn compile(&mut self) -> io::Result<()> {
if self.generate_autoconf_file {
self.generate_autoconf_header_file_default_location()?;
}
for src in SRCS_LIST {
let mut next_file = self.libcsp_src_path_base.clone();
next_file.push(src);
self.build.file(next_file);
}
if self.cfg.rdp {
let mut next_file = self.libcsp_src_path_base.clone();
next_file.push("csp_rdp.c");
self.build.file(next_file);
let mut next_file = self.libcsp_src_path_base.clone();
next_file.push("csp_rdp_queue.c");
self.build.file(next_file);
}
if self.cfg.promisc {
let mut next_file = self.libcsp_src_path_base.clone();
next_file.push("csp_promisc.c");
self.build.file(next_file);
}
if self.cfg.csp_print {
let mut next_file = self.libcsp_src_path_base.clone();
next_file.push("csp_hex_dump.c");
self.build.file(next_file);
}
if self.cfg.yaml {
let mut next_file = self.libcsp_src_path_base.clone();
next_file.push("csp_yaml.c");
self.build.file(next_file);
}
if self.cfg.rtable {
let mut next_file = self.libcsp_src_path_base.clone();
next_file.push("csp_rtable_cidr.c");
self.build.file(next_file);
}
// TODO: UNIX does not necesarilly mean POSIX? Details to deal with later..
#[cfg(unix)]
self.posix_arch_files();
let mut inc_path = self.libcsp_path.clone();
inc_path.push("include");
self.build.include(inc_path);
self.build.include(&self.libcsp_src_path_base);
self.build.cargo_warnings(self.compiler_warnings);
self.build.compile("csp");
// TODO: We could generate some sort of information file which contains the
// compilation information and the version of hte library.
Ok(())
}
#[cfg(unix)]
fn posix_arch_files(&mut self) {
for src in ARCH_SRCS_UNIX {
let mut next_file = self.libcsp_src_path_base.clone();
next_file.push(src);
self.build.file(next_file);
}
}
pub fn generate_autoconf_header_file_default_location(&mut self) -> io::Result<()> {
let mut autoconf_dir = self.out_dir.join("cfg");
self.build.include(&autoconf_dir);
autoconf_dir.push("csp");
std::fs::create_dir_all(&autoconf_dir)?;
generate_autoconf_header_file(&autoconf_dir, &self.cfg)
}
pub fn generate_autoconf_header_file(&mut self, dir: impl AsRef<Path>) -> io::Result<()> {
generate_autoconf_header_file(dir, &self.cfg)
}
pub fn generate_autoconf_rust_file(&self, dir: impl AsRef<Path>) -> io::Result<()> {
generate_autoconf_rust_file(dir, &self.cfg)
}
}
/// Generate the autoconfig.h file which is required to build the C library. This file contains
/// important configuration defines.
pub fn generate_autoconf_header_file(out_dir: impl AsRef<Path>, cfg: &Config) -> io::Result<()> {
let out_dir = out_dir.as_ref();
let mut autoconf_file_string = String::new();
let version = env!("CARGO_PKG_VERSION");
let name = env!("CARGO_PKG_NAME");
autoconf_file_string.push_str(&format!(
"// This file was auto-generated by {} v{}\n",
name, version
));
#[cfg(unix)]
autoconf_file_string.push_str("#define CSP_POSIX 1\n");
#[cfg(not(unix))]
autoconf_file_string.push_str("#define CSP_POSIX 0\n");
autoconf_file_string.push_str("#define CSP_ZEPHYR 0\n");
autoconf_file_string.push('\n');
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::HAVE_STDIO,
cfg.have_stdio as u32
));
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::ENABLE_CSP_PRINT,
cfg.csp_print as u32
));
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::PRINT_STDIO,
cfg.print_stdio as u32
));
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::REPRODUCIBLE_BUILDS,
cfg.reproducible_builds as u32
));
autoconf_file_string.push('\n');
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::QFIFO_LEN,
cfg.qfifo_len
));
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::PORT_MAX_BIND,
cfg.port_max_bind
));
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::CONN_RXQUEUE_LEN,
cfg.conn_rx_queue_len
));
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::CONN_MAX,
cfg.conn_max
));
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::BUFFER_SIZE,
cfg.buffer_size
));
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::BUFFER_COUNT,
cfg.buffer_count
));
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::RDP_MAX_WINDOW,
cfg.rdp_max_window
));
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::RTABLE_SIZE,
cfg.rtable_size
));
autoconf_file_string.push('\n');
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::USE_RDP,
cfg.rdp as u32
));
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::USE_HMAC,
cfg.hmac as u32
));
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::USE_PROMISC,
cfg.promisc as u32
));
autoconf_file_string.push_str(&format!(
"#define {} {}\n",
cfg_keys::USE_RTABLE,
cfg.rtable as u32
));
autoconf_file_string.push('\n');
// TODO: Maybe those will be added at some point.. For now, they are hardcoded to 0.
autoconf_file_string.push_str(&format!("#define {} {}\n", cfg_keys::HAVE_LIBSOCKETCAN, 0));
autoconf_file_string.push_str(&format!("#define {} {}\n", cfg_keys::HAVE_LIBZMQ, 0));
let out_file = out_dir.join("autoconfig.h");
let mut file = std::fs::File::create(out_file)?;
file.write_all(autoconf_file_string.as_bytes())?;
Ok(())
}
/// Generate the autoconfig.rs file which is required by the
/// [`libcsp-sys`](https://crates.io/crates/libcsp-sys) Rust bindings crate.
pub fn generate_autoconf_rust_file(out_dir: impl AsRef<Path>, cfg: &Config) -> io::Result<()> {
let out_dir = out_dir.as_ref();
let mut autoconf_file_string = String::new();
let version = env!("CARGO_PKG_VERSION");
let name = env!("CARGO_PKG_NAME");
autoconf_file_string.push_str(&format!(
"// This file was auto-generated by {} v{}\n",
name, version
));
autoconf_file_string.push_str(&format!(
"pub const {}: usize = {};\n",
cfg_keys::CONN_RXQUEUE_LEN,
cfg.conn_rx_queue_len
));
autoconf_file_string.push_str(&format!(
"pub const {}: usize = {};\n",
cfg_keys::QFIFO_LEN,
cfg.qfifo_len
));
autoconf_file_string.push_str(&format!(
"pub const {}: usize = {};\n",
cfg_keys::PORT_MAX_BIND,
cfg.port_max_bind
));
autoconf_file_string.push_str(&format!(
"pub const {}: usize = {};\n",
cfg_keys::CONN_MAX,
cfg.conn_max
));
autoconf_file_string.push_str(&format!(
"pub const {}: usize = {};\n",
cfg_keys::BUFFER_SIZE,
cfg.buffer_size
));
autoconf_file_string.push_str(&format!(
"pub const {}: usize = {};\n",
cfg_keys::RDP_MAX_WINDOW,
cfg.rdp_max_window
));
autoconf_file_string.push_str(&format!(
"pub const {}: usize = {};\n",
cfg_keys::RTABLE_SIZE,
cfg.rtable_size
));
let out_file = out_dir.join("autoconfig.rs");
let mut file = std::fs::File::create(out_file)?;
file.write_all(autoconf_file_string.as_bytes())?;
Ok(())
}
#[cfg(test)]
mod tests {
// TODO: Unittest autoconf generators.
}