Branch data Line data Source code
1 : : // Copyright (c) 2019-2021 The Bitcoin Core developers
2 : : // Distributed under the MIT software license, see the accompanying
3 : : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
4 : :
5 : : #include <chainparams.h>
6 : : #include <consensus/merkle.h>
7 : : #include <consensus/validation.h>
8 : : #include <core_io.h>
9 : : #include <core_memusage.h>
10 : : #include <primitives/block.h>
11 : : #include <pubkey.h>
12 : : #include <streams.h>
13 : : #include <test/fuzz/fuzz.h>
14 : : #include <util/chaintype.h>
15 : : #include <validation.h>
16 : :
17 : : #include <cassert>
18 : : #include <string>
19 : :
20 : 0 : void initialize_block()
21 : : {
22 : 0 : SelectParams(ChainType::REGTEST);
23 : 0 : }
24 : :
25 [ + - ]: 775 : FUZZ_TARGET(block, .init = initialize_block)
26 : : {
27 : 773 : DataStream ds{buffer};
28 [ + - ]: 773 : CBlock block;
29 : : try {
30 [ + - + + ]: 773 : ds >> TX_WITH_WITNESS(block);
31 [ - + ]: 773 : } catch (const std::ios_base::failure&) {
32 : : return;
33 [ + - ]: 135 : }
34 [ + - + - ]: 638 : const Consensus::Params& consensus_params = Params().GetConsensus();
35 : 638 : BlockValidationState validation_state_pow_and_merkle;
36 [ + - ]: 638 : const bool valid_incl_pow_and_merkle = CheckBlock(block, validation_state_pow_and_merkle, consensus_params, /* fCheckPOW= */ true, /* fCheckMerkleRoot= */ true);
37 [ + - + + : 638 : assert(validation_state_pow_and_merkle.IsValid() || validation_state_pow_and_merkle.IsInvalid() || validation_state_pow_and_merkle.IsError());
+ - - + #
# + - ]
38 [ + - + - ]: 638 : (void)validation_state_pow_and_merkle.Error("");
39 : 638 : BlockValidationState validation_state_pow;
40 [ + - ]: 638 : const bool valid_incl_pow = CheckBlock(block, validation_state_pow, consensus_params, /* fCheckPOW= */ true, /* fCheckMerkleRoot= */ false);
41 [ + - + + : 638 : assert(validation_state_pow.IsValid() || validation_state_pow.IsInvalid() || validation_state_pow.IsError());
+ - - + #
# + - ]
42 : 638 : BlockValidationState validation_state_merkle;
43 [ + - ]: 638 : const bool valid_incl_merkle = CheckBlock(block, validation_state_merkle, consensus_params, /* fCheckPOW= */ false, /* fCheckMerkleRoot= */ true);
44 [ + - + + : 638 : assert(validation_state_merkle.IsValid() || validation_state_merkle.IsInvalid() || validation_state_merkle.IsError());
+ - - + #
# + - ]
45 : 638 : BlockValidationState validation_state_none;
46 [ + - ]: 638 : const bool valid_incl_none = CheckBlock(block, validation_state_none, consensus_params, /* fCheckPOW= */ false, /* fCheckMerkleRoot= */ false);
47 [ + - + + : 638 : assert(validation_state_none.IsValid() || validation_state_none.IsInvalid() || validation_state_none.IsError());
+ - - + #
# + - ]
48 [ + + ]: 638 : if (valid_incl_pow_and_merkle) {
49 [ + - - + : 12 : assert(valid_incl_pow && valid_incl_merkle && valid_incl_none);
+ - ]
50 [ + + + + ]: 638 : } else if (valid_incl_merkle || valid_incl_pow) {
51 [ + - ]: 49 : assert(valid_incl_none);
52 : 49 : }
53 [ + - ]: 638 : (void)block.GetHash();
54 [ + - ]: 638 : (void)block.ToString();
55 [ + - ]: 638 : (void)BlockMerkleRoot(block);
56 [ + + ]: 638 : if (!block.vtx.empty()) {
57 [ + - ]: 625 : (void)BlockWitnessMerkleRoot(block);
58 : 625 : }
59 [ + - ]: 638 : (void)GetBlockWeight(block);
60 [ + - ]: 638 : (void)GetWitnessCommitmentIndex(block);
61 [ + - ]: 638 : const size_t raw_memory_size = RecursiveDynamicUsage(block);
62 [ + - + - ]: 638 : const size_t raw_memory_size_as_shared_ptr = RecursiveDynamicUsage(std::make_shared<CBlock>(block));
63 [ + - ]: 638 : assert(raw_memory_size_as_shared_ptr > raw_memory_size);
64 [ + - ]: 638 : CBlock block_copy = block;
65 [ + - ]: 638 : block_copy.SetNull();
66 [ + - ]: 638 : const bool is_null = block_copy.IsNull();
67 [ + - ]: 638 : assert(is_null);
68 [ - + ]: 908 : }
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