Blake3 syscall (#17358)

programs/bpf/Cargo.lock

@@ -3069,6 +3069,7 @@ dependencies = [
 name = "solana-bpf-rust-sha"
 version = "1.8.0"
 dependencies = [
+ "blake3",
  "solana-program 1.8.0",
 ]
 

programs/bpf/c/src/sha/sha.c

@@ -43,5 +43,24 @@ extern uint64_t entrypoint(const uint8_t *input) {
     sol_assert(0 == sol_memcmp(result, expected, KECCAK_RESULT_LENGTH));
   }
 
+  // Blake3
+  {
+    uint8_t result[BLAKE3_RESULT_LENGTH];
+    uint8_t expected[] = {0xad, 0x5d, 0x97, 0x5b, 0xc2, 0xc7, 0x46, 0x19,
+                          0x31, 0xb4, 0x87, 0x5d, 0x19, 0x6, 0xc5, 0x36,
+                          0xf4, 0x97, 0xa8, 0x45, 0x55, 0xec, 0xaf, 0xf2,
+                          0x50, 0x70, 0xe3, 0xe2, 0x3d, 0xbe, 0x7, 0x8c};
+
+    uint8_t bytes1[] = {'G', 'a', 'g', 'g', 'a', 'b', 'l', 'a',
+                        'g', 'h', 'b', 'l', 'a', 'g', 'h', '!'};
+    uint8_t bytes2[] = {'f', 'l', 'u', 'r', 'b', 'o', 's'};
+    const SolBytes bytes[] = {{bytes1, SOL_ARRAY_SIZE(bytes1)},
+                              {bytes2, SOL_ARRAY_SIZE(bytes2)}};
+
+    sol_blake3(bytes, SOL_ARRAY_SIZE(bytes), result);
+
+    sol_assert(0 == sol_memcmp(result, expected, BLAKE3_RESULT_LENGTH));
+  }
+
   return SUCCESS;
 }

programs/bpf/rust/sha/Cargo.toml

@@ -10,6 +10,7 @@ documentation = "https://docs.rs/solana-bpf-rust-sha"
 edition = "2018"
 
 [dependencies]
+blake3 = "0.3.7"
 solana-program = { path = "../../../../sdk/program", version = "=1.8.0" }
 
 [lib]

programs/bpf/rust/sha/src/lib.rs

@@ -19,12 +19,22 @@ fn test_keccak256_hasher() {
     assert_eq!(hashv(vals), hasher.result());
 }
 
+fn test_blake3_hasher() {
+    use solana_program::blake3::hashv;
+    let v0: &[u8] = b"Gaggablaghblagh!";
+    let v1: &[u8] = b"flurbos!";
+    let vals: &[&[u8]] = &[v0, v1];
+    let hash = blake3::hash(&[v0, v1].concat());
+    assert_eq!(hashv(vals).0, *hash.as_bytes());
+}
+
 #[no_mangle]
 pub extern "C" fn entrypoint(_input: *mut u8) -> u64 {
     msg!("sha");
 
     test_sha256_hasher();
     test_keccak256_hasher();
+    test_blake3_hasher();
 
     0
 }
@@ -39,5 +49,6 @@ mod test {
     fn test_sha() {
         test_sha256_hasher();
         test_keccak256_hasher();
+        test_blake3_hasher();
     }
 }

programs/bpf/tests/programs.rs

@@ -1282,7 +1282,7 @@ fn assert_instruction_count() {
             ("relative_call", 10),
             ("sanity", 174),
             ("sanity++", 174),
-            ("sha", 694),
+            ("sha", 1040),
             ("struct_pass", 8),
             ("struct_ret", 22),
         ]);
@@ -1303,7 +1303,7 @@ fn assert_instruction_count() {
             ("solana_bpf_rust_param_passing", 46),
             ("solana_bpf_rust_rand", 498),
             ("solana_bpf_rust_sanity", 917),
-            ("solana_bpf_rust_sha", 29099),
+            ("solana_bpf_rust_sha", 32384),
         ]);
     }