ZeroTierOne/zeroidc/vendor/openssl-sys/build/run_bindgen.rs
2022-06-08 12:16:09 -04:00

130 lines
4.0 KiB
Rust

use bindgen::callbacks::{MacroParsingBehavior, ParseCallbacks};
use bindgen::RustTarget;
use std::env;
use std::path::PathBuf;
const INCLUDES: &str = "
#include <openssl/aes.h>
#include <openssl/asn1.h>
#include <openssl/bio.h>
#include <openssl/comp.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/ocsp.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)
#include <openssl/cms.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
";
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();
}
#[derive(Debug)]
struct OpensslCallbacks;
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,
}
}
}