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  #include <test/util/time.h>
 7  
 8  #include <node/mempool_args.h>
 9  #include <node/mempool_persist_args.h>
10  #include <test/fuzz/FuzzedDataProvider.h>
11  #include <test/fuzz/fuzz.h>
12  #include <test/fuzz/util.h>
13  #include <test/fuzz/util/mempool.h>
14  #include <test/util/setup_common.h>
15  #include <test/util/txmempool.h>
16  #include <txmempool.h>
17  #include <util/check.h>
18  #include <util/time.h>
19  #include <util/translation.h>
20  #include <validation.h>
21  
22  #include <cstdint>
23  #include <vector>
24  
25  using node::DumpMempool;
26  using node::LoadMempool;
27  
28  using node::MempoolPath;
29  
30  namespace {
31  const TestingSetup* g_setup;
32  } // namespace
33  
34  void initialize_validation_load_mempool()
35  {
36      static const auto testing_setup = MakeNoLogFileContext<const TestingSetup>();
37      g_setup = testing_setup.get();
38  }
39  
40  FUZZ_TARGET(validation_load_mempool, .init = initialize_validation_load_mempool)
41  {
42      SeedRandomStateForTest(SeedRand::ZEROS);
43      FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
44      NodeClockContext clock_ctx{ConsumeTime(fuzzed_data_provider)};
45      FuzzedFileProvider fuzzed_file_provider{fuzzed_data_provider};
46  
47      bilingual_str error;
48      CTxMemPool pool{MemPoolOptionsForTest(g_setup->m_node), error};
49      Assert(error.empty());
50  
51      auto& chainstate{static_cast<DummyChainState&>(g_setup->m_node.chainman->ActiveChainstate())};
52      chainstate.SetMempool(&pool);
53  
54      auto fuzzed_fopen = [&](const fs::path&, const char*) {
55          return fuzzed_file_provider.open();
56      };
57      (void)LoadMempool(pool, MempoolPath(g_setup->m_args), chainstate,
58                        {
59                            .mockable_fopen_function = fuzzed_fopen,
60                        });
61      pool.SetLoadTried(true);
62      (void)DumpMempool(pool, MempoolPath(g_setup->m_args), fuzzed_fopen, true);
63  }