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Compile-time flags for signature methods #17

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14976dc
Added new signature methods and introduced compile time flags to prev…
Sep 10, 2025
ad05670
fixed warning about unused status
Sep 10, 2025
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1 change: 1 addition & 0 deletions Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -20,3 +20,4 @@ lazy_static = {version = "^1.4"}
[build-dependencies]
pkg-config = {version = "^0.3"}
bindgen = {version = "^0.65"}
cc = "1.2.36"
117 changes: 116 additions & 1 deletion bindings.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -10,8 +10,79 @@ use std::env;
use std::path::PathBuf;
use std::process::Command;


const BINDINGS: &str = "bindings.rs";
const TRANSFORMS: &[(&str, &str)] = &[
("xmlSecOpenSSLTransformAes128CbcGetKlass", "has_aes128_cbc"),
("xmlSecOpenSSLTransformAes128GcmGetKlass", "has_aes128_gcm"),
("xmlSecOpenSSLTransformAes192CbcGetKlass", "has_aes192_cbc"),
("xmlSecOpenSSLTransformAes192GcmGetKlass", "has_aes192_gcm"),
("xmlSecOpenSSLTransformAes256CbcGetKlass", "has_aes256_cbc"),
("xmlSecOpenSSLTransformAes256GcmGetKlass", "has_aes256_gcm"),
("xmlSecOpenSSLTransformConcatKdfGetKlass", "has_concatkdf"),
("xmlSecOpenSSLTransformDes3CbcGetKlass", "has_des3_cbc"),
("xmlSecOpenSSLTransformDhEsGetKlass", "has_dhes"),
("xmlSecOpenSSLTransformDsaSha1GetKlass", "has_dsa_sha1"),
("xmlSecOpenSSLTransformDsaSha256GetKlass", "has_dsa_sha256"),
("xmlSecOpenSSLTransformEcdhGetKlass", "has_ecdh"),
("xmlSecOpenSSLTransformEcdsaRipemd160GetKlass", "has_ecdsa_ripemd160"),
("xmlSecOpenSSLTransformEcdsaSha1GetKlass", "has_ecdsa_sha1"),
("xmlSecOpenSSLTransformEcdsaSha224GetKlass", "has_ecdsa_sha224"),
("xmlSecOpenSSLTransformEcdsaSha256GetKlass", "has_ecdsa_sha256"),
("xmlSecOpenSSLTransformEcdsaSha3_224GetKlass", "has_ecdsa_sha3_224"),
("xmlSecOpenSSLTransformEcdsaSha3_256GetKlass", "has_ecdsa_sha3_256"),
("xmlSecOpenSSLTransformEcdsaSha3_384GetKlass", "has_ecdsa_sha3_384"),
("xmlSecOpenSSLTransformEcdsaSha3_512GetKlass", "has_ecdsa_sha3_512"),
("xmlSecOpenSSLTransformEcdsaSha384GetKlass", "has_ecdsa_sha384"),
("xmlSecOpenSSLTransformEcdsaSha512GetKlass", "has_ecdsa_sha512"),
("xmlSecOpenSSLTransformGost2001GostR3411_94GetKlass", "has_gost2001"),
("xmlSecOpenSSLTransformGostR3410_2012GostR3411_2012_256GetKlass", "has_gost2012_256"),
("xmlSecOpenSSLTransformGostR3410_2012GostR3411_2012_512GetKlass", "has_gost2012_512"),
("xmlSecOpenSSLTransformGostR3411_2012_256GetKlass", "has_gost2012_256"),
("xmlSecOpenSSLTransformGostR3411_2012_512GetKlass", "has_gost2012_512"),
("xmlSecOpenSSLTransformGostR3411_94GetKlass", "has_gost94"),
("xmlSecOpenSSLTransformHmacMd5GetKlass", "has_hmac_md5"),
("xmlSecOpenSSLTransformHmacRipemd160GetKlass", "has_hmac_ripemd160"),
("xmlSecOpenSSLTransformHmacSha1GetKlass", "has_hmac_sha1"),
("xmlSecOpenSSLTransformHmacSha224GetKlass", "has_hmac_sha224"),
("xmlSecOpenSSLTransformHmacSha256GetKlass", "has_hmac_sha256"),
("xmlSecOpenSSLTransformHmacSha384GetKlass", "has_hmac_sha384"),
("xmlSecOpenSSLTransformHmacSha512GetKlass", "has_hmac_sha512"),
("xmlSecOpenSSLTransformKWAes128GetKlass", "has_kw_aes128"),
("xmlSecOpenSSLTransformKWAes192GetKlass", "has_kw_aes192"),
("xmlSecOpenSSLTransformKWAes256GetKlass", "has_kw_aes256"),
("xmlSecOpenSSLTransformKWDes3GetKlass", "has_kw_des3"),
("xmlSecOpenSSLTransformMd5GetKlass", "has_md5"),
("xmlSecOpenSSLTransformPbkdf2GetKlass", "has_pbkdf2"),
("xmlSecOpenSSLTransformRipemd160GetKlass", "has_ripemd160"),
("xmlSecOpenSSLTransformRsaMd5GetKlass", "has_rsa_md5"),
("xmlSecOpenSSLTransformRsaOaepEnc11GetKlass", "has_rsaoaep_enc11"),
("xmlSecOpenSSLTransformRsaOaepGetKlass", "has_rsa_oaep"),
("xmlSecOpenSSLTransformRsaPkcs1GetKlass", "has_rsa_pkcs1"),
("xmlSecOpenSSLTransformRsaPssSha1GetKlass", "has_rsapsssha1"),
("xmlSecOpenSSLTransformRsaPssSha224GetKlass", "has_rsapsssha224"),
("xmlSecOpenSSLTransformRsaPssSha256GetKlass", "has_rsapsssha256"),
("xmlSecOpenSSLTransformRsaPssSha3_224GetKlass", "has_rsapsssha3_224"),
("xmlSecOpenSSLTransformRsaPssSha3_256GetKlass", "has_rsapsssha3_256"),
("xmlSecOpenSSLTransformRsaPssSha3_384GetKlass", "has_rsapsssha3_384"),
("xmlSecOpenSSLTransformRsaPssSha3_512GetKlass", "has_rsapsssha3_512"),
("xmlSecOpenSSLTransformRsaPssSha384GetKlass", "has_rsapsssha384"),
("xmlSecOpenSSLTransformRsaPssSha512GetKlass", "has_rsapsssha512"),
("xmlSecOpenSSLTransformRsaRipemd160GetKlass", "has_rsa_ripemd160"),
("xmlSecOpenSSLTransformRsaSha1GetKlass", "has_rsa_sha1"),
("xmlSecOpenSSLTransformRsaSha224GetKlass", "has_rsa_sha224"),
("xmlSecOpenSSLTransformRsaSha256GetKlass", "has_rsa_sha256"),
("xmlSecOpenSSLTransformRsaSha384GetKlass", "has_rsa_sha384"),
("xmlSecOpenSSLTransformRsaSha512GetKlass", "has_rsa_sha512"),
("xmlSecOpenSSLTransformSha1GetKlass", "has_sha1"),
("xmlSecOpenSSLTransformSha224GetKlass", "has_sha224"),
("xmlSecOpenSSLTransformSha256GetKlass", "has_sha256"),
("xmlSecOpenSSLTransformSha384GetKlass", "has_sha384"),
("xmlSecOpenSSLTransformSha512GetKlass", "has_sha512"),
("xmlSecOpenSSLTransformSha3_224GetKlass", "has_sha3_224"),
("xmlSecOpenSSLTransformSha3_256GetKlass", "has_sha3_256"),
("xmlSecOpenSSLTransformSha3_384GetKlass", "has_sha3_384"),
("xmlSecOpenSSLTransformSha3_512GetKlass", "has_sha3_512"),
];


fn main()
Expand Down Expand Up @@ -45,8 +116,52 @@ fn main()
bindings.write_to_file(path_bindings)
.expect("Couldn't write bindings!");
}

for (symbol, cfg) in TRANSFORMS {
println!("cargo:rustc-check-cfg=cfg({})", cfg);
detect_transform(symbol, cfg);
}
}

/// Try to compile a tiny program referencing a symbol.
/// If it succeeds, emit a `cfg` flag like `has_aes128`.
fn detect_transform(symbol: &str, cfg_name: &str) {
let code = format!(
"#include <xmlsec/crypto.h>\n\
int main() {{ (void){}(); return 0; }}",
symbol
);

let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
let src_file = out_dir.join(format!("probe_{cfg}.c", cfg = cfg_name));
std::fs::write(&src_file, code).unwrap();

let exe_file = out_dir.join(format!("probe_{cfg}", cfg = cfg_name));

let mut cmd = cc::Build::new().get_compiler().to_command();
cmd.arg(&src_file).arg("-o").arg(&exe_file);

// add cflags
for flag in fetch_xmlsec_config_flags() {
cmd.arg(flag);
}
// add libs
for lib in fetch_xmlsec_config_libs() {
cmd.arg(lib);
}

match cmd.status() {
Ok(status) if status.success() => {
println!("cargo:rustc-cfg={}", cfg_name);
}
Ok(_) => {
println!("cargo:warning=Probe for {} failed", cfg_name);
}
Err(e) => {
println!("cargo:warning=Probe for {} failed to run: {}", cfg_name, e);
}
}
}

fn fetch_xmlsec_config_flags() -> Vec<String>
{
Expand Down
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