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|
#[cfg(feature = "bindgen")]
use bindgen::callbacks::{MacroParsingBehavior, ParseCallbacks};
#[cfg(feature = "bindgen")]
use bindgen::{MacroTypeVariation, RustTarget};
use std::io::Write;
use std::path::PathBuf;
#[cfg(not(feature = "bindgen"))]
use std::process;
use std::{env, fs};
const INCLUDES: &str = "
#include <openssl/aes.h>
#include <openssl/asn1.h>
#include <openssl/bio.h>
#include <openssl/cmac.h>
#include <openssl/conf.h>
#include <openssl/crypto.h>
#include <openssl/dh.h>
#include <openssl/dsa.h>
#include <openssl/ec.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
#include <openssl/objects.h>
#include <openssl/opensslv.h>
#include <openssl/pem.h>
#include <openssl/pkcs12.h>
#include <openssl/pkcs7.h>
#include <openssl/rand.h>
#include <openssl/rsa.h>
#include <openssl/safestack.h>
#include <openssl/sha.h>
#include <openssl/ssl.h>
#include <openssl/stack.h>
#include <openssl/x509.h>
#include <openssl/x509_vfy.h>
#include <openssl/x509v3.h>
// this must be included after ssl.h for libressl!
#include <openssl/srtp.h>
#if !defined(LIBRESSL_VERSION_NUMBER) && !defined(OPENSSL_IS_BORINGSSL)
#include <openssl/cms.h>
#endif
#if !defined(OPENSSL_IS_BORINGSSL)
#include <openssl/comp.h>
#include <openssl/ocsp.h>
#endif
#if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x10100000
#include <openssl/kdf.h>
#endif
#if OPENSSL_VERSION_NUMBER >= 0x30000000
#include <openssl/provider.h>
#endif
";
#[cfg(feature = "bindgen")]
pub fn run(include_dirs: &[PathBuf]) {
let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
let mut builder = bindgen::builder()
.parse_callbacks(Box::new(OpensslCallbacks))
.rust_target(RustTarget::Stable_1_47)
.ctypes_prefix("::libc")
.raw_line("use libc::*;")
.raw_line("type evp_pkey_st = EVP_PKEY;")
.allowlist_file(".*/openssl/[^/]+\\.h")
.allowlist_recursively(false)
// libc is missing pthread_once_t on macOS
.blocklist_type("CRYPTO_ONCE")
.blocklist_function("CRYPTO_THREAD_run_once")
// we don't want to mess with va_list
.blocklist_function("BIO_vprintf")
.blocklist_function("BIO_vsnprintf")
.blocklist_function("ERR_vset_error")
.blocklist_function("ERR_add_error_vdata")
.blocklist_function("EVP_KDF_vctrl")
.blocklist_type("OSSL_FUNC_core_vset_error_fn")
.blocklist_type("OSSL_FUNC_BIO_vprintf_fn")
.blocklist_type("OSSL_FUNC_BIO_vsnprintf_fn")
// Maintain compatibility for existing enum definitions
.rustified_enum("point_conversion_form_t")
// Maintain compatibility for pre-union definitions
.blocklist_type("GENERAL_NAME")
.blocklist_type("GENERAL_NAME_st")
.blocklist_type("EVP_PKEY")
.blocklist_type("evp_pkey_st")
.layout_tests(false)
.header_contents("includes.h", INCLUDES);
for include_dir in include_dirs {
builder = builder
.clang_arg("-I")
.clang_arg(include_dir.display().to_string());
}
builder
.generate()
.unwrap()
.write_to_file(out_dir.join("bindgen.rs"))
.unwrap();
}
#[cfg(feature = "bindgen")]
pub fn run_boringssl(include_dirs: &[PathBuf]) {
let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
let mut builder = bindgen::builder()
.rust_target(RustTarget::Stable_1_47)
.ctypes_prefix("::libc")
.raw_line("use libc::*;")
.derive_default(false)
.enable_function_attribute_detection()
.default_macro_constant_type(MacroTypeVariation::Signed)
.rustified_enum("point_conversion_form_t")
.allowlist_file(".*/openssl/[^/]+\\.h")
.allowlist_recursively(false)
.blocklist_function("BIO_vsnprintf")
.blocklist_function("OPENSSL_vasprintf")
.wrap_static_fns(true)
.wrap_static_fns_path(out_dir.join("boring_static_wrapper").display().to_string())
.layout_tests(false)
.header_contents("includes.h", INCLUDES);
for include_dir in include_dirs {
builder = builder
.clang_arg("-I")
.clang_arg(include_dir.display().to_string());
}
builder
.generate()
.unwrap()
.write_to_file(out_dir.join("bindgen.rs"))
.unwrap();
fs::File::create(out_dir.join("boring_static_wrapper.h"))
.expect("Failed to create boring_static_wrapper.h")
.write_all(INCLUDES.as_bytes())
.expect("Failed to write contents to boring_static_wrapper.h");
cc::Build::new()
.file(out_dir.join("boring_static_wrapper.c"))
.includes(include_dirs)
.flag("-include")
.flag(
&out_dir
.join("boring_static_wrapper.h")
.display()
.to_string(),
)
.compile("boring_static_wrapper");
}
#[cfg(not(feature = "bindgen"))]
pub fn run_boringssl(include_dirs: &[PathBuf]) {
let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
fs::File::create(out_dir.join("boring_static_wrapper.h"))
.expect("Failed to create boring_static_wrapper.h")
.write_all(INCLUDES.as_bytes())
.expect("Failed to write contents to boring_static_wrapper.h");
let mut bindgen_cmd = process::Command::new("bindgen");
bindgen_cmd
.arg("-o")
.arg(out_dir.join("bindgen.rs"))
// Must be a valid version from
// https://docs.rs/bindgen/latest/bindgen/enum.RustTarget.html
.arg("--rust-target=1.47")
.arg("--ctypes-prefix=::libc")
.arg("--raw-line=use libc::*;")
.arg("--no-derive-default")
.arg("--enable-function-attribute-detection")
.arg("--default-macro-constant-type=signed")
.arg("--rustified-enum=point_conversion_form_t")
.arg("--allowlist-file=.*/openssl/[^/]+\\.h")
.arg("--no-recursive-allowlist")
.arg("--blocklist-function=BIO_vsnprintf")
.arg("--blocklist-function=OPENSSL_vasprintf")
.arg("--experimental")
.arg("--wrap-static-fns")
.arg("--wrap-static-fns-path")
.arg(out_dir.join("boring_static_wrapper").display().to_string())
.arg("--no-layout-tests")
.arg(out_dir.join("boring_static_wrapper.h"))
.arg("--")
.arg(format!("--target={}", env::var("TARGET").unwrap()));
for include_dir in include_dirs {
bindgen_cmd.arg("-I").arg(include_dir.display().to_string());
}
let result = bindgen_cmd.status().expect("bindgen failed to execute");
assert!(result.success());
cc::Build::new()
.file(out_dir.join("boring_static_wrapper.c"))
.includes(include_dirs)
.flag("-include")
.flag(
&out_dir
.join("boring_static_wrapper.h")
.display()
.to_string(),
)
.compile("boring_static_wrapper");
}
#[derive(Debug)]
struct OpensslCallbacks;
#[cfg(feature = "bindgen")]
impl ParseCallbacks for OpensslCallbacks {
// for now we'll continue hand-writing constants
fn will_parse_macro(&self, _name: &str) -> MacroParsingBehavior {
MacroParsingBehavior::Ignore
}
fn item_name(&self, original_item_name: &str) -> Option<String> {
match original_item_name {
// Our original definitions of these are wrong, so rename to avoid breakage
"CRYPTO_EX_new"
| "CRYPTO_EX_dup"
| "CRYPTO_EX_free"
| "BIO_meth_set_write"
| "BIO_meth_set_read"
| "BIO_meth_set_puts"
| "BIO_meth_set_ctrl"
| "BIO_meth_set_create"
| "BIO_meth_set_destroy"
| "CRYPTO_set_locking_callback"
| "CRYPTO_set_id_callback"
| "SSL_CTX_set_tmp_dh_callback"
| "SSL_set_tmp_dh_callback"
| "SSL_CTX_set_tmp_ecdh_callback"
| "SSL_set_tmp_ecdh_callback"
| "SSL_CTX_callback_ctrl"
| "SSL_CTX_set_alpn_select_cb" => Some(format!("{}__fixed_rust", original_item_name)),
_ => None,
}
}
}
|
