diff options
| -rw-r--r-- | src/Makefile.test.include | 7 | ||||
| -rw-r--r-- | src/test/fuzz/crypto_common.cpp | 70 | ||||
| -rw-r--r-- | src/test/fuzz/util.h | 14 |
3 files changed, 91 insertions, 0 deletions
diff --git a/src/Makefile.test.include b/src/Makefile.test.include index 7909cb4a0f..03cd9133c8 100644 --- a/src/Makefile.test.include +++ b/src/Makefile.test.include @@ -32,6 +32,7 @@ FUZZ_TARGETS = \ test/fuzz/checkqueue \ test/fuzz/coins_deserialize \ test/fuzz/coins_view \ + test/fuzz/crypto_common \ test/fuzz/cuckoocache \ test/fuzz/decode_tx \ test/fuzz/descriptor_parse \ @@ -478,6 +479,12 @@ test_fuzz_coins_view_LDADD = $(FUZZ_SUITE_LD_COMMON) test_fuzz_coins_view_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) test_fuzz_coins_view_SOURCES = test/fuzz/coins_view.cpp +test_fuzz_crypto_common_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) +test_fuzz_crypto_common_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_crypto_common_LDADD = $(FUZZ_SUITE_LD_COMMON) +test_fuzz_crypto_common_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_crypto_common_SOURCES = test/fuzz/crypto_common.cpp + test_fuzz_cuckoocache_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) test_fuzz_cuckoocache_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) test_fuzz_cuckoocache_LDADD = $(FUZZ_SUITE_LD_COMMON) diff --git a/src/test/fuzz/crypto_common.cpp b/src/test/fuzz/crypto_common.cpp new file mode 100644 index 0000000000..7ccb125216 --- /dev/null +++ b/src/test/fuzz/crypto_common.cpp @@ -0,0 +1,70 @@ +// Copyright (c) 2020 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 <crypto/common.h> +#include <test/fuzz/FuzzedDataProvider.h> +#include <test/fuzz/fuzz.h> +#include <test/fuzz/util.h> + +#include <array> +#include <cassert> +#include <cstdint> +#include <cstring> +#include <vector> + +void test_one_input(const std::vector<uint8_t>& buffer) +{ + FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()}; + const uint16_t random_u16 = fuzzed_data_provider.ConsumeIntegral<uint16_t>(); + const uint32_t random_u32 = fuzzed_data_provider.ConsumeIntegral<uint32_t>(); + const uint64_t random_u64 = fuzzed_data_provider.ConsumeIntegral<uint64_t>(); + const std::vector<uint8_t> random_bytes_2 = ConsumeFixedLengthByteVector(fuzzed_data_provider, 2); + const std::vector<uint8_t> random_bytes_4 = ConsumeFixedLengthByteVector(fuzzed_data_provider, 4); + const std::vector<uint8_t> random_bytes_8 = ConsumeFixedLengthByteVector(fuzzed_data_provider, 8); + + std::array<uint8_t, 2> writele16_arr; + WriteLE16(writele16_arr.data(), random_u16); + assert(ReadLE16(writele16_arr.data()) == random_u16); + + std::array<uint8_t, 4> writele32_arr; + WriteLE32(writele32_arr.data(), random_u32); + assert(ReadLE32(writele32_arr.data()) == random_u32); + + std::array<uint8_t, 8> writele64_arr; + WriteLE64(writele64_arr.data(), random_u64); + assert(ReadLE64(writele64_arr.data()) == random_u64); + + std::array<uint8_t, 4> writebe32_arr; + WriteBE32(writebe32_arr.data(), random_u32); + assert(ReadBE32(writebe32_arr.data()) == random_u32); + + std::array<uint8_t, 8> writebe64_arr; + WriteBE64(writebe64_arr.data(), random_u64); + assert(ReadBE64(writebe64_arr.data()) == random_u64); + + const uint16_t readle16_result = ReadLE16(random_bytes_2.data()); + std::array<uint8_t, 2> readle16_arr; + WriteLE16(readle16_arr.data(), readle16_result); + assert(std::memcmp(random_bytes_2.data(), readle16_arr.data(), 2) == 0); + + const uint32_t readle32_result = ReadLE32(random_bytes_4.data()); + std::array<uint8_t, 4> readle32_arr; + WriteLE32(readle32_arr.data(), readle32_result); + assert(std::memcmp(random_bytes_4.data(), readle32_arr.data(), 4) == 0); + + const uint64_t readle64_result = ReadLE64(random_bytes_8.data()); + std::array<uint8_t, 8> readle64_arr; + WriteLE64(readle64_arr.data(), readle64_result); + assert(std::memcmp(random_bytes_8.data(), readle64_arr.data(), 8) == 0); + + const uint32_t readbe32_result = ReadBE32(random_bytes_4.data()); + std::array<uint8_t, 4> readbe32_arr; + WriteBE32(readbe32_arr.data(), readbe32_result); + assert(std::memcmp(random_bytes_4.data(), readbe32_arr.data(), 4) == 0); + + const uint64_t readbe64_result = ReadBE64(random_bytes_8.data()); + std::array<uint8_t, 8> readbe64_arr; + WriteBE64(readbe64_arr.data(), readbe64_result); + assert(std::memcmp(random_bytes_8.data(), readbe64_arr.data(), 8) == 0); +} diff --git a/src/test/fuzz/util.h b/src/test/fuzz/util.h index f26878a704..1c1b2cd254 100644 --- a/src/test/fuzz/util.h +++ b/src/test/fuzz/util.h @@ -214,4 +214,18 @@ NODISCARD inline bool ContainsSpentInput(const CTransaction& tx, const CCoinsVie return false; } +/** + * Returns a byte vector of specified size regardless of the number of remaining bytes available + * from the fuzzer. Pads with zero value bytes if needed to achieve the specified size. + */ +NODISCARD inline std::vector<uint8_t> ConsumeFixedLengthByteVector(FuzzedDataProvider& fuzzed_data_provider, const size_t length) noexcept +{ + std::vector<uint8_t> result(length); + const std::vector<uint8_t> random_bytes = fuzzed_data_provider.ConsumeBytes<uint8_t>(length); + if (!random_bytes.empty()) { + std::memcpy(result.data(), random_bytes.data(), random_bytes.size()); + } + return result; +} + #endif // BITCOIN_TEST_FUZZ_UTIL_H |