block.cpp raw

   1  // Copyright (c) 2019-present 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  void initialize_block()
  21  {
  22      SelectParams(ChainType::REGTEST);
  23  }
  24  
  25  FUZZ_TARGET(block, .init = initialize_block)
  26  {
  27      CBlock block;
  28      try {
  29          SpanReader{buffer} >> TX_WITH_WITNESS(block);
  30      } catch (const std::ios_base::failure&) {
  31          return;
  32      }
  33      const Consensus::Params& consensus_params = Params().GetConsensus();
  34      BlockValidationState validation_state_pow_and_merkle;
  35      const bool valid_incl_pow_and_merkle = CheckBlock(block, validation_state_pow_and_merkle, consensus_params, /* fCheckPOW= */ true, /* fCheckMerkleRoot= */ true);
  36      assert(validation_state_pow_and_merkle.IsValid() || validation_state_pow_and_merkle.IsInvalid() || validation_state_pow_and_merkle.IsError());
  37      (void)validation_state_pow_and_merkle.Error("");
  38      BlockValidationState validation_state_pow;
  39      const bool valid_incl_pow = CheckBlock(block, validation_state_pow, consensus_params, /* fCheckPOW= */ true, /* fCheckMerkleRoot= */ false);
  40      assert(validation_state_pow.IsValid() || validation_state_pow.IsInvalid() || validation_state_pow.IsError());
  41      BlockValidationState validation_state_merkle;
  42      const bool valid_incl_merkle = CheckBlock(block, validation_state_merkle, consensus_params, /* fCheckPOW= */ false, /* fCheckMerkleRoot= */ true);
  43      assert(validation_state_merkle.IsValid() || validation_state_merkle.IsInvalid() || validation_state_merkle.IsError());
  44      BlockValidationState validation_state_none;
  45      const bool valid_incl_none = CheckBlock(block, validation_state_none, consensus_params, /* fCheckPOW= */ false, /* fCheckMerkleRoot= */ false);
  46      assert(validation_state_none.IsValid() || validation_state_none.IsInvalid() || validation_state_none.IsError());
  47      if (valid_incl_pow_and_merkle) {
  48          assert(valid_incl_pow && valid_incl_merkle && valid_incl_none);
  49      } else if (valid_incl_merkle || valid_incl_pow) {
  50          assert(valid_incl_none);
  51      }
  52      (void)block.GetHash();
  53      (void)block.ToString();
  54      (void)BlockMerkleRoot(block);
  55      if (!block.vtx.empty()) {
  56          (void)BlockWitnessMerkleRoot(block);
  57      }
  58      (void)GetBlockWeight(block);
  59      (void)GetWitnessCommitmentIndex(block);
  60      const size_t raw_memory_size = RecursiveDynamicUsage(block);
  61      const size_t raw_memory_size_as_shared_ptr = RecursiveDynamicUsage(std::make_shared<CBlock>(block));
  62      assert(raw_memory_size_as_shared_ptr > raw_memory_size);
  63      CBlock block_copy = block;
  64      block_copy.SetNull();
  65      const bool is_null = block_copy.IsNull();
  66      assert(is_null);
  67  }
  68