process_messages.cpp raw

   1  // Copyright (c) 2020-present The Limenka 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 <consensus/consensus.h>
   6  #include <net.h>
   7  #include <net_processing.h>
   8  #include <protocol.h>
   9  #include <script/script.h>
  10  #include <sync.h>
  11  #include <test/fuzz/FuzzedDataProvider.h>
  12  #include <test/fuzz/fuzz.h>
  13  #include <test/fuzz/util.h>
  14  #include <test/fuzz/util/net.h>
  15  #include <test/util/mining.h>
  16  #include <test/util/net.h>
  17  #include <test/util/setup_common.h>
  18  #include <test/util/validation.h>
  19  #include <util/time.h>
  20  #include <validationinterface.h>
  21  
  22  #include <ios>
  23  #include <string>
  24  #include <utility>
  25  #include <vector>
  26  
  27  namespace {
  28  const TestingSetup* g_setup;
  29  } // namespace
  30  
  31  void initialize_process_messages()
  32  {
  33      static const auto testing_setup = MakeNoLogFileContext<const TestingSetup>(
  34              /*chain_type=*/ChainType::REGTEST,
  35              {.extra_args = {"-txreconciliation"}});
  36      g_setup = testing_setup.get();
  37      for (int i = 0; i < 2 * COINBASE_MATURITY; i++) {
  38          MineBlock(g_setup->m_node, {});
  39      }
  40      g_setup->m_node.validation_signals->SyncWithValidationInterfaceQueue();
  41  }
  42  
  43  FUZZ_TARGET(process_messages, .init = initialize_process_messages)
  44  {
  45      SeedRandomStateForTest(SeedRand::ZEROS);
  46      FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
  47  
  48      ConnmanTestMsg& connman = *static_cast<ConnmanTestMsg*>(g_setup->m_node.connman.get());
  49      auto& chainman = static_cast<TestChainstateManager&>(*g_setup->m_node.chainman);
  50      SetMockTime(1610000000); // any time to successfully reset ibd
  51      chainman.ResetIbd();
  52  
  53      LOCK(NetEventsInterface::g_msgproc_mutex);
  54  
  55      std::vector<CNode*> peers;
  56      const auto num_peers_to_add = fuzzed_data_provider.ConsumeIntegralInRange(1, 3);
  57      for (int i = 0; i < num_peers_to_add; ++i) {
  58          peers.push_back(ConsumeNodeAsUniquePtr(fuzzed_data_provider, i).release());
  59          CNode& p2p_node = *peers.back();
  60  
  61          FillNode(fuzzed_data_provider, connman, p2p_node);
  62  
  63          connman.AddTestNode(p2p_node);
  64      }
  65  
  66      LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 30)
  67      {
  68          const std::string random_message_type{fuzzed_data_provider.ConsumeBytesAsString(CMessageHeader::MESSAGE_TYPE_SIZE).c_str()};
  69  
  70          const auto mock_time = ConsumeTime(fuzzed_data_provider);
  71          SetMockTime(mock_time);
  72  
  73          CSerializedNetMsg net_msg;
  74          net_msg.m_type = random_message_type;
  75          net_msg.data = ConsumeRandomLengthByteVector(fuzzed_data_provider, MAX_PROTOCOL_MESSAGE_LENGTH);
  76  
  77          CNode& random_node = *PickValue(fuzzed_data_provider, peers);
  78  
  79          connman.FlushSendBuffer(random_node);
  80          (void)connman.ReceiveMsgFrom(random_node, std::move(net_msg));
  81  
  82          bool more_work{true};
  83          while (more_work) { // Ensure that every message is eventually processed in some way or another
  84              random_node.fPauseSend = false;
  85  
  86              try {
  87                  more_work = connman.ProcessMessagesOnce(random_node);
  88              } catch (const std::ios_base::failure&) {
  89              }
  90              g_setup->m_node.peerman->SendMessages(&random_node);
  91          }
  92      }
  93      g_setup->m_node.validation_signals->SyncWithValidationInterfaceQueue();
  94      g_setup->m_node.connman->StopNodes();
  95  }
  96