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author | TheCharlatan <seb.kung@gmail.com> | 2023-06-21 00:14:56 +0200 |
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committer | Ava Chow <github@achow101.com> | 2024-05-16 15:03:13 -0400 |
commit | 4d7a3ae78e55f25868979f1bd920857a4aecb825 (patch) | |
tree | 8913e8a61c83dedc4b4007c240cb8aff3be7ee3b /src/wallet/test | |
parent | 3568dce9e93295674cdf5458c5bdf93ff01fd0a2 (diff) | |
download | bitcoin-4d7a3ae78e55f25868979f1bd920857a4aecb825.tar.xz |
Berkeley RO Database fuzz test
Diffstat (limited to 'src/wallet/test')
-rw-r--r-- | src/wallet/test/fuzz/wallet_bdb_parser.cpp | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/wallet/test/fuzz/wallet_bdb_parser.cpp b/src/wallet/test/fuzz/wallet_bdb_parser.cpp new file mode 100644 index 0000000000..24ef75f791 --- /dev/null +++ b/src/wallet/test/fuzz/wallet_bdb_parser.cpp @@ -0,0 +1,133 @@ +// Copyright (c) 2023 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 <config/bitcoin-config.h> // IWYU pragma: keep +#include <test/fuzz/FuzzedDataProvider.h> +#include <test/fuzz/fuzz.h> +#include <test/fuzz/util.h> +#include <test/util/setup_common.h> +#include <util/fs.h> +#include <util/time.h> +#include <util/translation.h> +#include <wallet/bdb.h> +#include <wallet/db.h> +#include <wallet/dump.h> +#include <wallet/migrate.h> + +#include <fstream> +#include <iostream> + +using wallet::DatabaseOptions; +using wallet::DatabaseStatus; + +namespace { +TestingSetup* g_setup; +} // namespace + +void initialize_wallet_bdb_parser() +{ + static auto testing_setup = MakeNoLogFileContext<TestingSetup>(); + g_setup = testing_setup.get(); +} + +FUZZ_TARGET(wallet_bdb_parser, .init = initialize_wallet_bdb_parser) +{ + const auto wallet_path = g_setup->m_args.GetDataDirNet() / "fuzzed_wallet.dat"; + + { + AutoFile outfile{fsbridge::fopen(wallet_path, "wb")}; + outfile << Span{buffer}; + } + + const DatabaseOptions options{}; + DatabaseStatus status; + bilingual_str error; + + fs::path bdb_ro_dumpfile{g_setup->m_args.GetDataDirNet() / "fuzzed_dumpfile_bdb_ro.dump"}; + if (fs::exists(bdb_ro_dumpfile)) { // Writing into an existing dump file will throw an exception + remove(bdb_ro_dumpfile); + } + g_setup->m_args.ForceSetArg("-dumpfile", fs::PathToString(bdb_ro_dumpfile)); + +#ifdef USE_BDB + bool bdb_ro_err = false; + bool bdb_ro_pgno_err = false; +#endif + auto db{MakeBerkeleyRODatabase(wallet_path, options, status, error)}; + if (db) { + assert(DumpWallet(g_setup->m_args, *db, error)); + } else { +#ifdef USE_BDB + bdb_ro_err = true; +#endif + if (error.original == "AutoFile::ignore: end of file: iostream error" || + error.original == "AutoFile::read: end of file: iostream error" || + error.original == "Not a BDB file" || + error.original == "Unsupported BDB data file version number" || + error.original == "Unexpected page type, should be 9 (BTree Metadata)" || + error.original == "Unexpected database flags, should only be 0x20 (subdatabases)" || + error.original == "Unexpected outer database root page type" || + error.original == "Unexpected number of entries in outer database root page" || + error.original == "Subdatabase has an unexpected name" || + error.original == "Subdatabase page number has unexpected length" || + error.original == "Unexpected inner database page type" || + error.original == "Unknown record type in records page" || + error.original == "Unknown record type in internal page" || + error.original == "Unexpected page size" || + error.original == "Unexpected page type" || + error.original == "Page number mismatch" || + error.original == "Bad btree level" || + error.original == "Bad page size" || + error.original == "File size is not a multiple of page size" || + error.original == "Meta page number mismatch") { + // Do nothing + } else if (error.original == "Subdatabase last page is greater than database last page" || + error.original == "Page number is greater than database last page" || + error.original == "Page number is greater than subdatabase last page" || + error.original == "Last page number could not fit in file") { +#ifdef USE_BDB + bdb_ro_pgno_err = true; +#endif + } else { + throw std::runtime_error(error.original); + } + } + +#ifdef USE_BDB + // Try opening with BDB + fs::path bdb_dumpfile{g_setup->m_args.GetDataDirNet() / "fuzzed_dumpfile_bdb.dump"}; + if (fs::exists(bdb_dumpfile)) { // Writing into an existing dump file will throw an exception + remove(bdb_dumpfile); + } + g_setup->m_args.ForceSetArg("-dumpfile", fs::PathToString(bdb_dumpfile)); + + try { + auto db{MakeBerkeleyDatabase(wallet_path, options, status, error)}; + if (bdb_ro_err && !db) { + return; + } + assert(db); + if (bdb_ro_pgno_err) { + // BerkeleyRO will throw on opening for errors involving bad page numbers, but BDB does not. + // Ignore those. + return; + } + assert(!bdb_ro_err); + assert(DumpWallet(g_setup->m_args, *db, error)); + } catch (const std::runtime_error& e) { + if (bdb_ro_err) return; + throw e; + } + + // Make sure the dumpfiles match + if (fs::exists(bdb_ro_dumpfile) && fs::exists(bdb_dumpfile)) { + std::ifstream bdb_ro_dump(bdb_ro_dumpfile, std::ios_base::binary | std::ios_base::in); + std::ifstream bdb_dump(bdb_dumpfile, std::ios_base::binary | std::ios_base::in); + assert(std::equal( + std::istreambuf_iterator<char>(bdb_ro_dump.rdbuf()), + std::istreambuf_iterator<char>(), + std::istreambuf_iterator<char>(bdb_dump.rdbuf()))); + } +#endif +} |