1  // Copyright (c) 2020-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 <node/mempool_persist.h>
 6  
 7  #include <node/mempool_args.h>
 8  #include <node/mempool_persist_args.h>
 9  #include <test/fuzz/FuzzedDataProvider.h>
10  #include <test/fuzz/fuzz.h>
11  #include <test/fuzz/util.h>
12  #include <test/fuzz/util/mempool.h>
13  #include <test/util/setup_common.h>
14  #include <test/util/txmempool.h>
15  #include <txmempool.h>
16  #include <util/check.h>
17  #include <util/time.h>
18  #include <util/translation.h>
19  #include <validation.h>
20  
21  #include <cstdint>
22  #include <vector>
23  
24  using node::DumpMempool;
25  using node::LoadMempool;
26  
27  using node::MempoolPath;
28  
29  namespace {
30  const TestingSetup* g_setup;
31  } // namespace
32  
33  void initialize_validation_load_mempool()
34  {
35      static const auto testing_setup = MakeNoLogFileContext<const TestingSetup>();
36      g_setup = testing_setup.get();
37  }
38  
39  FUZZ_TARGET(validation_load_mempool, .init = initialize_validation_load_mempool)
40  {
41      SeedRandomStateForTest(SeedRand::ZEROS);
42      FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
43      SetMockTime(ConsumeTime(fuzzed_data_provider));
44      FuzzedFileProvider fuzzed_file_provider{fuzzed_data_provider};
45  
46      bilingual_str error;
47      CTxMemPool pool{MemPoolOptionsForTest(g_setup->m_node), error};
48      Assert(error.empty());
49  
50      auto& chainstate{static_cast<DummyChainState&>(g_setup->m_node.chainman->ActiveChainstate())};
51      chainstate.SetMempool(&pool);
52  
53      auto fuzzed_fopen = [&](const fs::path&, const char*) {
54          return fuzzed_file_provider.open();
55      };
56      (void)LoadMempool(pool, MempoolPath(g_setup->m_args), chainstate,
57                        {
58                            .mockable_fopen_function = fuzzed_fopen,
59                        });
60      pool.SetLoadTried(true);
61      (void)DumpMempool(pool, MempoolPath(g_setup->m_args), fuzzed_fopen, true);
62  }