spend.cpp raw

   1  // Copyright (c) 2024-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 <addresstype.h>
   6  #include <test/fuzz/FuzzedDataProvider.h>
   7  #include <test/fuzz/fuzz.h>
   8  #include <test/fuzz/util.h>
   9  #include <test/fuzz/util/wallet.h>
  10  #include <test/util/random.h>
  11  #include <test/util/setup_common.h>
  12  #include <test/util/time.h>
  13  #include <util/time.h>
  14  #include <validation.h>
  15  #include <wallet/coincontrol.h>
  16  #include <wallet/context.h>
  17  #include <wallet/spend.h>
  18  #include <wallet/test/util.h>
  19  #include <wallet/wallet.h>
  20  
  21  using util::ToString;
  22  
  23  namespace wallet {
  24  namespace {
  25  const TestingSetup* g_setup;
  26  
  27  void initialize_setup()
  28  {
  29      static const auto testing_setup = MakeNoLogFileContext<const TestingSetup>();
  30      g_setup = testing_setup.get();
  31  }
  32  
  33  FUZZ_TARGET(wallet_create_transaction, .init = initialize_setup)
  34  {
  35      SeedRandomStateForTest(SeedRand::ZEROS);
  36      FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
  37      FakeNodeClock clock{ConsumeTime(fuzzed_data_provider)};
  38      const auto& node = g_setup->m_node;
  39      Chainstate& chainstate{node.chainman->ActiveChainstate()};
  40      ArgsManager& args = *node.args;
  41      args.ForceSetArg("-dustrelayfee", ToString(fuzzed_data_provider.ConsumeIntegralInRange<CAmount>(0, MAX_MONEY)));
  42      FuzzedWallet fuzzed_wallet{
  43          *g_setup->m_node.chain,
  44          "fuzzed_wallet_a",
  45          "tprv8ZgxMBicQKsPd1QwsGgzfu2pcPYbBosZhJknqreRHgsWx32nNEhMjGQX2cgFL8n6wz9xdDYwLcs78N4nsCo32cxEX8RBtwGsEGgybLiQJfk",
  46      };
  47  
  48      CCoinControl coin_control;
  49      if (fuzzed_data_provider.ConsumeBool()) coin_control.m_version = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
  50      coin_control.m_avoid_partial_spends = fuzzed_data_provider.ConsumeBool();
  51      coin_control.m_include_unsafe_inputs = fuzzed_data_provider.ConsumeBool();
  52      if (fuzzed_data_provider.ConsumeBool()) coin_control.m_confirm_target = fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(0, 999'000);
  53      coin_control.destChange = fuzzed_data_provider.ConsumeBool() ? fuzzed_wallet.GetDestination(fuzzed_data_provider) : ConsumeTxDestination(fuzzed_data_provider);
  54      if (fuzzed_data_provider.ConsumeBool()) coin_control.m_change_type = fuzzed_data_provider.PickValueInArray(OUTPUT_TYPES);
  55      if (fuzzed_data_provider.ConsumeBool()) coin_control.m_feerate = CFeeRate(ConsumeMoney(fuzzed_data_provider, /*max=*/COIN));
  56      coin_control.m_allow_other_inputs = fuzzed_data_provider.ConsumeBool();
  57      coin_control.m_locktime = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
  58      coin_control.fOverrideFeeRate = fuzzed_data_provider.ConsumeBool();
  59  
  60      int next_locktime{0};
  61      CAmount all_values{0};
  62      LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000)
  63      {
  64          CMutableTransaction tx;
  65          tx.nLockTime = next_locktime++;
  66          tx.vout.resize(1);
  67          CAmount n_value{ConsumeMoney(fuzzed_data_provider)};
  68          all_values += n_value;
  69          if (all_values > MAX_MONEY) return;
  70          tx.vout[0].nValue = n_value;
  71          tx.vout[0].scriptPubKey = GetScriptForDestination(fuzzed_wallet.GetDestination(fuzzed_data_provider));
  72          LOCK(fuzzed_wallet.wallet->cs_wallet);
  73          auto txid{tx.GetHash()};
  74          auto ret{fuzzed_wallet.wallet->mapWallet.emplace(std::piecewise_construct, std::forward_as_tuple(txid), std::forward_as_tuple(MakeTransactionRef(std::move(tx)), TxStateConfirmed{chainstate.m_chain.Tip()->GetBlockHash(), chainstate.m_chain.Height(), /*index=*/0}))};
  75          assert(ret.second);
  76      }
  77  
  78      std::vector<CRecipient> recipients;
  79      LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 100) {
  80          CTxDestination destination;
  81          CallOneOf(
  82              fuzzed_data_provider,
  83              [&] {
  84                  destination = fuzzed_wallet.GetDestination(fuzzed_data_provider);
  85              },
  86              [&] {
  87                  CScript script;
  88                  script << OP_RETURN;
  89                  destination = CNoDestination{script};
  90              },
  91              [&] {
  92                  destination = ConsumeTxDestination(fuzzed_data_provider);
  93              }
  94          );
  95          recipients.push_back({destination,
  96                                /*nAmount=*/ConsumeMoney(fuzzed_data_provider),
  97                                /*fSubtractFeeFromAmount=*/fuzzed_data_provider.ConsumeBool()});
  98      }
  99  
 100      std::optional<unsigned int> change_pos;
 101      if (fuzzed_data_provider.ConsumeBool()) change_pos = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
 102      (void)CreateTransaction(*fuzzed_wallet.wallet, recipients, change_pos, coin_control);
 103  }
 104  } // namespace
 105  } // namespace wallet
 106