add hash_extra_jh_r rust function and unit test

Author: nkysg

consensus/cryptonight-rs/ext/hash-ops.h

@@ -49,5 +49,11 @@ void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int
 
 void hash_extra_blake(const void *data, size_t length, char *hash);
 void hash_extra_groestl(const void *data, size_t length, char *hash);
+#ifdef __cplusplus
+extern "C" {
+#endif
 void hash_extra_jh(const void *data, size_t length, char *hash);
+#ifdef __cplusplus
+}
+#endif
 void hash_extra_skein(const void *data, size_t length, char *hash);

consensus/cryptonight-rs/src/lib.rs

@@ -11,6 +11,10 @@ extern "C" {
     ) -> c_void;
 }
 
+#[link(name = "cryptonight", kind = "static")]
+extern "C" {
+    fn hash_extra_jh(data: *const c_char, length: size_t, hash: *const c_char) -> c_void;
+}
 const VARIANT: i32 = 4;
 const HEIGHT: u64 = 0;
 
@@ -27,5 +31,18 @@ pub fn cryptonight_r(data: &[u8], size: usize) -> Vec<u8> {
     hash
 }
 
+#[allow(clippy::unsound_collection_transmute)]
+pub fn hash_extra_jh_r(data: &[u8], size: usize) -> Vec<u8> {
+    let hash: Vec<i8> = vec![0i8; 32];
+    let data_ptr: *const c_char = data.as_ptr() as *const c_char;
+    let hash_ptr: *const c_char = hash.as_ptr() as *const c_char;
+    let mut hash = unsafe {
+        hash_extra_jh(data_ptr, size, hash_ptr);
+        std::mem::transmute::<Vec<i8>, Vec<u8>>(hash)
+    };
+    hash.reverse();
+    hash
+}
+
 #[cfg(test)]
 mod tests;

consensus/cryptonight-rs/src/tests.rs

@@ -32,6 +32,17 @@ fn test_amd_ryzen() {
     assert_eq!(hash, data.output);
 }
 
+// this test is same test_amd_ryzen, trace the inner produce can get this data
+#[test]
+fn test_main_block2_jh_on_ubuntu22() {
+    let data = TestCase {
+        input: "d6a11a431fd56dc29c5927328e83eef11590362b70aef492f12c449bde657b4e3ac4e15816314613ca7339d152294b185ed86709acc1266259580d4aba729d37c733a89eb15ea91b28bbe49bd151cb1b947bb239c4ff10cfe24aa05f31a8cdb8e71345ea45cffeff6bbf9d2c7fe58f13f190b2921a531fb65841221d3e3e8483830a9b4a9c2e2843e74db1792c739d3ee27a973b61c838f300a54951cf8ac5fe99c2ced05d8b4cffa20a24f84dba4a4528b2b2cf035ae5b06b49f12364fcb5776db3692bfb6f029d".from_hex().unwrap(),
+        output: "0000008e67af69c3c670dab325e8fc3a9dc045c6e339aa35f43b415604513742".from_hex().unwrap(),
+    };
+    let hash = hash_extra_jh_r(&data.input[..], data.input.len());
+    assert_eq!(hash, data.output);
+}
+
 // add a test for ubuntu22
 // add -Ofast in build.rs, this test will failed on unbuntu22
 // the data is gen from verify_header_test_barnard_block3_ubuntu22