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-rw-r--r--third_party/rust/neqo-crypto/build.rs423
1 files changed, 423 insertions, 0 deletions
diff --git a/third_party/rust/neqo-crypto/build.rs b/third_party/rust/neqo-crypto/build.rs
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index 0000000000..a63c34dedb
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+++ b/third_party/rust/neqo-crypto/build.rs
@@ -0,0 +1,423 @@
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![cfg_attr(feature = "deny-warnings", deny(warnings))]
+#![warn(clippy::pedantic)]
+
+use std::{
+ collections::HashMap,
+ env, fs,
+ path::{Path, PathBuf},
+ process::Command,
+};
+
+use bindgen::Builder;
+use serde_derive::Deserialize;
+
+const BINDINGS_DIR: &str = "bindings";
+const BINDINGS_CONFIG: &str = "bindings.toml";
+
+// This is the format of a single section of the configuration file.
+#[derive(Deserialize)]
+struct Bindings {
+ /// types that are explicitly included
+ #[serde(default)]
+ types: Vec<String>,
+ /// functions that are explicitly included
+ #[serde(default)]
+ functions: Vec<String>,
+ /// variables (and `#define`s) that are explicitly included
+ #[serde(default)]
+ variables: Vec<String>,
+ /// types that should be explicitly marked as opaque
+ #[serde(default)]
+ opaque: Vec<String>,
+ /// enumerations that are turned into a module (without this, the enum is
+ /// mapped using the default, which means that the individual values are
+ /// formed with an underscore as <enum_type>_<enum_value_name>).
+ #[serde(default)]
+ enums: Vec<String>,
+
+ /// Any item that is specifically excluded; if none of the types, functions,
+ /// or variables fields are specified, everything defined will be mapped,
+ /// so this can be used to limit that.
+ #[serde(default)]
+ exclude: Vec<String>,
+
+ /// Whether the file is to be interpreted as C++
+ #[serde(default)]
+ cplusplus: bool,
+}
+
+fn is_debug() -> bool {
+ env::var("DEBUG")
+ .map(|d| d.parse::<bool>().unwrap_or(false))
+ .unwrap_or(false)
+}
+
+// bindgen needs access to libclang.
+// On windows, this doesn't just work, you have to set LIBCLANG_PATH.
+// Rather than download the 400Mb+ files, like gecko does, let's just reuse their work.
+fn setup_clang() {
+ // If this isn't Windows, or we're in CI, then we don't need to do anything.
+ if env::consts::OS != "windows" || env::var("GITHUB_WORKFLOW").unwrap() == "CI" {
+ return;
+ }
+ println!("rerun-if-env-changed=LIBCLANG_PATH");
+ println!("rerun-if-env-changed=MOZBUILD_STATE_PATH");
+ if env::var("LIBCLANG_PATH").is_ok() {
+ return;
+ }
+ let mozbuild_root = if let Ok(dir) = env::var("MOZBUILD_STATE_PATH") {
+ PathBuf::from(dir.trim())
+ } else {
+ eprintln!("warning: Building without a gecko setup is not likely to work.");
+ eprintln!(" A working libclang is needed to build neqo.");
+ eprintln!(" Either LIBCLANG_PATH or MOZBUILD_STATE_PATH needs to be set.");
+ eprintln!();
+ eprintln!(" We recommend checking out https://github.com/mozilla/gecko-dev");
+ eprintln!(" Then run `./mach bootstrap` which will retrieve clang.");
+ eprintln!(" Make sure to export MOZBUILD_STATE_PATH when building.");
+ return;
+ };
+ let libclang_dir = mozbuild_root.join("clang").join("lib");
+ if libclang_dir.is_dir() {
+ env::set_var("LIBCLANG_PATH", libclang_dir.to_str().unwrap());
+ println!("rustc-env:LIBCLANG_PATH={}", libclang_dir.to_str().unwrap());
+ } else {
+ println!("warning: LIBCLANG_PATH isn't set; maybe run ./mach bootstrap with gecko");
+ }
+}
+
+fn nss_dir() -> PathBuf {
+ let dir = if let Ok(dir) = env::var("NSS_DIR") {
+ let path = PathBuf::from(dir.trim());
+ assert!(
+ !path.is_relative(),
+ "The NSS_DIR environment variable is expected to be an absolute path."
+ );
+ path
+ } else {
+ let out_dir = env::var("OUT_DIR").unwrap();
+ let dir = Path::new(&out_dir).join("nss");
+ if !dir.exists() {
+ Command::new("hg")
+ .args([
+ "clone",
+ "https://hg.mozilla.org/projects/nss",
+ dir.to_str().unwrap(),
+ ])
+ .status()
+ .expect("can't clone nss");
+ }
+ let nspr_dir = Path::new(&out_dir).join("nspr");
+ if !nspr_dir.exists() {
+ Command::new("hg")
+ .args([
+ "clone",
+ "https://hg.mozilla.org/projects/nspr",
+ nspr_dir.to_str().unwrap(),
+ ])
+ .status()
+ .expect("can't clone nspr");
+ }
+ dir
+ };
+ assert!(dir.is_dir(), "NSS_DIR {:?} doesn't exist", dir);
+ // Note that this returns a relative path because UNC
+ // paths on windows cause certain tools to explode.
+ dir
+}
+
+fn get_bash() -> PathBuf {
+ // If BASH is set, use that.
+ if let Ok(bash) = env::var("BASH") {
+ return PathBuf::from(bash);
+ }
+
+ // When running under MOZILLABUILD, we need to make sure not to invoke
+ // another instance of bash that might be sitting around (like WSL).
+ match env::var("MOZILLABUILD") {
+ Ok(d) => PathBuf::from(d).join("msys").join("bin").join("bash.exe"),
+ Err(_) => PathBuf::from("bash"),
+ }
+}
+
+fn build_nss(dir: PathBuf) {
+ let mut build_nss = vec![
+ String::from("./build.sh"),
+ String::from("-Ddisable_tests=1"),
+ ];
+ if is_debug() {
+ build_nss.push(String::from("--static"));
+ } else {
+ build_nss.push(String::from("-o"));
+ }
+ if let Ok(d) = env::var("NSS_JOBS") {
+ build_nss.push(String::from("-j"));
+ build_nss.push(d);
+ }
+ let target = env::var("TARGET").unwrap();
+ if target.strip_prefix("aarch64-").is_some() {
+ build_nss.push(String::from("--target=arm64"));
+ }
+ let status = Command::new(get_bash())
+ .args(build_nss)
+ .current_dir(dir)
+ .status()
+ .expect("couldn't start NSS build");
+ assert!(status.success(), "NSS build failed");
+}
+
+fn dynamic_link() {
+ let libs = if env::consts::OS == "windows" {
+ &["nssutil3.dll", "nss3.dll", "ssl3.dll"]
+ } else {
+ &["nssutil3", "nss3", "ssl3"]
+ };
+ dynamic_link_both(libs);
+}
+
+fn dynamic_link_both(extra_libs: &[&str]) {
+ let nspr_libs = if env::consts::OS == "windows" {
+ &["libplds4", "libplc4", "libnspr4"]
+ } else {
+ &["plds4", "plc4", "nspr4"]
+ };
+ for lib in nspr_libs.iter().chain(extra_libs) {
+ println!("cargo:rustc-link-lib=dylib={lib}");
+ }
+}
+
+fn static_link() {
+ let mut static_libs = vec![
+ "certdb",
+ "certhi",
+ "cryptohi",
+ "freebl",
+ "nss_static",
+ "nssb",
+ "nssdev",
+ "nsspki",
+ "nssutil",
+ "pk11wrap",
+ "pkcs12",
+ "pkcs7",
+ "smime",
+ "softokn_static",
+ "ssl",
+ ];
+ if env::consts::OS != "macos" {
+ static_libs.push("sqlite");
+ }
+ for lib in static_libs {
+ println!("cargo:rustc-link-lib=static={lib}");
+ }
+
+ // Dynamic libs that aren't transitively included by NSS libs.
+ let mut other_libs = Vec::new();
+ if env::consts::OS != "windows" {
+ other_libs.extend_from_slice(&["pthread", "dl", "c", "z"]);
+ }
+ if env::consts::OS == "macos" {
+ other_libs.push("sqlite3");
+ }
+ dynamic_link_both(&other_libs);
+}
+
+fn get_includes(nsstarget: &Path, nssdist: &Path) -> Vec<PathBuf> {
+ let nsprinclude = nsstarget.join("include").join("nspr");
+ let nssinclude = nssdist.join("public").join("nss");
+ let includes = vec![nsprinclude, nssinclude];
+ for i in &includes {
+ println!("cargo:include={}", i.to_str().unwrap());
+ }
+ includes
+}
+
+fn build_bindings(base: &str, bindings: &Bindings, flags: &[String], gecko: bool) {
+ let suffix = if bindings.cplusplus { ".hpp" } else { ".h" };
+ let header_path = PathBuf::from(BINDINGS_DIR).join(String::from(base) + suffix);
+ let header = header_path.to_str().unwrap();
+ let out = PathBuf::from(env::var("OUT_DIR").unwrap()).join(String::from(base) + ".rs");
+
+ println!("cargo:rerun-if-changed={header}");
+
+ let mut builder = Builder::default().header(header);
+ builder = builder.generate_comments(false);
+ builder = builder.size_t_is_usize(true);
+
+ builder = builder.clang_arg("-v");
+
+ if !gecko {
+ builder = builder.clang_arg("-DNO_NSPR_10_SUPPORT");
+ if env::consts::OS == "windows" {
+ builder = builder.clang_arg("-DWIN");
+ } else if env::consts::OS == "macos" {
+ builder = builder.clang_arg("-DDARWIN");
+ } else if env::consts::OS == "linux" {
+ builder = builder.clang_arg("-DLINUX");
+ } else if env::consts::OS == "android" {
+ builder = builder.clang_arg("-DLINUX");
+ builder = builder.clang_arg("-DANDROID");
+ }
+ if bindings.cplusplus {
+ builder = builder.clang_args(&["-x", "c++", "-std=c++14"]);
+ }
+ }
+
+ builder = builder.clang_args(flags);
+
+ // Apply the configuration.
+ for v in &bindings.types {
+ builder = builder.allowlist_type(v);
+ }
+ for v in &bindings.functions {
+ builder = builder.allowlist_function(v);
+ }
+ for v in &bindings.variables {
+ builder = builder.allowlist_var(v);
+ }
+ for v in &bindings.exclude {
+ builder = builder.blocklist_item(v);
+ }
+ for v in &bindings.opaque {
+ builder = builder.opaque_type(v);
+ }
+ for v in &bindings.enums {
+ builder = builder.constified_enum_module(v);
+ }
+
+ let bindings = builder.generate().expect("unable to generate bindings");
+ bindings
+ .write_to_file(out)
+ .expect("couldn't write bindings");
+}
+
+fn setup_standalone() -> Vec<String> {
+ setup_clang();
+
+ println!("cargo:rerun-if-env-changed=NSS_DIR");
+ let nss = nss_dir();
+ build_nss(nss.clone());
+
+ // $NSS_DIR/../dist/
+ let nssdist = nss.parent().unwrap().join("dist");
+ println!("cargo:rerun-if-env-changed=NSS_TARGET");
+ let nsstarget = env::var("NSS_TARGET")
+ .unwrap_or_else(|_| fs::read_to_string(nssdist.join("latest")).unwrap());
+ let nsstarget = nssdist.join(nsstarget.trim());
+
+ let includes = get_includes(&nsstarget, &nssdist);
+
+ let nsslibdir = nsstarget.join("lib");
+ println!(
+ "cargo:rustc-link-search=native={}",
+ nsslibdir.to_str().unwrap()
+ );
+ if is_debug() {
+ static_link();
+ } else {
+ dynamic_link();
+ }
+
+ let mut flags: Vec<String> = Vec::new();
+ for i in includes {
+ flags.push(String::from("-I") + i.to_str().unwrap());
+ }
+
+ flags
+}
+
+#[cfg(feature = "gecko")]
+fn setup_for_gecko() -> Vec<String> {
+ use mozbuild::TOPOBJDIR;
+
+ let fold_libs = mozbuild::config::MOZ_FOLD_LIBS;
+ let libs = if fold_libs {
+ vec!["nss3"]
+ } else {
+ vec!["nssutil3", "nss3", "ssl3", "plds4", "plc4", "nspr4"]
+ };
+
+ for lib in &libs {
+ println!("cargo:rustc-link-lib=dylib={}", lib);
+ }
+
+ if fold_libs {
+ println!(
+ "cargo:rustc-link-search=native={}",
+ TOPOBJDIR.join("security").to_str().unwrap()
+ );
+ } else {
+ println!(
+ "cargo:rustc-link-search=native={}",
+ TOPOBJDIR.join("dist").join("bin").to_str().unwrap()
+ );
+ let nsslib_path = TOPOBJDIR.join("security").join("nss").join("lib");
+ println!(
+ "cargo:rustc-link-search=native={}",
+ nsslib_path.join("nss").join("nss_nss3").to_str().unwrap()
+ );
+ println!(
+ "cargo:rustc-link-search=native={}",
+ nsslib_path.join("ssl").join("ssl_ssl3").to_str().unwrap()
+ );
+ println!(
+ "cargo:rustc-link-search=native={}",
+ TOPOBJDIR
+ .join("config")
+ .join("external")
+ .join("nspr")
+ .join("pr")
+ .to_str()
+ .unwrap()
+ );
+ }
+
+ let flags_path = TOPOBJDIR.join("netwerk/socket/neqo/extra-bindgen-flags");
+
+ println!("cargo:rerun-if-changed={}", flags_path.to_str().unwrap());
+ let mut flags = fs::read_to_string(flags_path)
+ .expect("Failed to read extra-bindgen-flags file")
+ .split_whitespace()
+ .map(String::from)
+ .collect::<Vec<_>>();
+
+ flags.push(String::from("-include"));
+ flags.push(
+ TOPOBJDIR
+ .join("dist")
+ .join("include")
+ .join("mozilla-config.h")
+ .to_str()
+ .unwrap()
+ .to_string(),
+ );
+ flags
+}
+
+#[cfg(not(feature = "gecko"))]
+fn setup_for_gecko() -> Vec<String> {
+ unreachable!()
+}
+
+fn main() {
+ let flags = if cfg!(feature = "gecko") {
+ setup_for_gecko()
+ } else {
+ setup_standalone()
+ };
+
+ let config_file = PathBuf::from(BINDINGS_DIR).join(BINDINGS_CONFIG);
+ println!("cargo:rerun-if-changed={}", config_file.to_str().unwrap());
+ let config = fs::read_to_string(config_file).expect("unable to read binding configuration");
+ let config: HashMap<String, Bindings> = ::toml::from_str(&config).unwrap();
+
+ for (k, v) in &config {
+ build_bindings(k, v, &flags[..], cfg!(feature = "gecko"));
+ }
+}