// Copyright (c) 2020-2021 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include #include #include #include #include #include #include #include #include #include #include #include #include #include namespace { const TestingSetup* g_setup; } // namespace void initialize_process_messages() { static const auto testing_setup = MakeNoLogFileContext(); g_setup = testing_setup.get(); for (int i = 0; i < 2 * COINBASE_MATURITY; i++) { MineBlock(g_setup->m_node, CScript() << OP_TRUE); } SyncWithValidationInterfaceQueue(); } FUZZ_TARGET_INIT(process_messages, initialize_process_messages) { FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size()); ConnmanTestMsg& connman = *static_cast(g_setup->m_node.connman.get()); TestChainState& chainstate = *static_cast(&g_setup->m_node.chainman->ActiveChainstate()); SetMockTime(1610000000); // any time to successfully reset ibd chainstate.ResetIbd(); std::vector peers; const auto num_peers_to_add = fuzzed_data_provider.ConsumeIntegralInRange(1, 3); for (int i = 0; i < num_peers_to_add; ++i) { peers.push_back(ConsumeNodeAsUniquePtr(fuzzed_data_provider, i).release()); CNode& p2p_node = *peers.back(); const bool successfully_connected{fuzzed_data_provider.ConsumeBool()}; p2p_node.fSuccessfullyConnected = successfully_connected; p2p_node.fPauseSend = false; g_setup->m_node.peerman->InitializeNode(&p2p_node); FillNode(fuzzed_data_provider, p2p_node, /*init_version=*/successfully_connected); connman.AddTestNode(p2p_node); } LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) { const std::string random_message_type{fuzzed_data_provider.ConsumeBytesAsString(CMessageHeader::COMMAND_SIZE).c_str()}; const auto mock_time = ConsumeTime(fuzzed_data_provider); SetMockTime(mock_time); CSerializedNetMsg net_msg; net_msg.m_type = random_message_type; net_msg.data = ConsumeRandomLengthByteVector(fuzzed_data_provider); CNode& random_node = *PickValue(fuzzed_data_provider, peers); (void)connman.ReceiveMsgFrom(random_node, net_msg); random_node.fPauseSend = false; try { connman.ProcessMessagesOnce(random_node); } catch (const std::ios_base::failure&) { } { LOCK(random_node.cs_sendProcessing); g_setup->m_node.peerman->SendMessages(&random_node); } } SyncWithValidationInterfaceQueue(); g_setup->m_node.connman->StopNodes(); }