Line data    Source code

       1             : // Copyright (c) 2020-2021 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 <common/bloom.h>
       6             : #include <primitives/transaction.h>
       7             : #include <test/fuzz/FuzzedDataProvider.h>
       8             : #include <test/fuzz/fuzz.h>
       9             : #include <test/fuzz/util.h>
      10             : #include <uint256.h>
      11             : 
      12             : #include <cassert>
      13             : #include <cstdint>
      14             : #include <optional>
      15             : #include <string>
      16             : #include <vector>
      17             : 
      18           4 : FUZZ_TARGET(bloom_filter)
      19             : {
      20           0 :     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
      21             : 
      22           0 :     CBloomFilter bloom_filter{
      23           0 :         fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(1, 10000000),
      24           0 :         1.0 / fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(1, std::numeric_limits<unsigned int>::max()),
      25           2 :         fuzzed_data_provider.ConsumeIntegral<unsigned int>(),
      26           0 :         static_cast<unsigned char>(fuzzed_data_provider.PickValueInArray({BLOOM_UPDATE_NONE, BLOOM_UPDATE_ALL, BLOOM_UPDATE_P2PUBKEY_ONLY, BLOOM_UPDATE_MASK}))};
      27           0 :     LIMITED_WHILE(fuzzed_data_provider.remaining_bytes() > 0, 10000) {
      28           0 :         CallOneOf(
      29             :             fuzzed_data_provider,
      30           0 :             [&] {
      31           0 :                 const std::vector<unsigned char> b = ConsumeRandomLengthByteVector(fuzzed_data_provider);
      32           0 :                 (void)bloom_filter.contains(b);
      33           0 :                 bloom_filter.insert(b);
      34           0 :                 const bool present = bloom_filter.contains(b);
      35           0 :                 assert(present);
      36           0 :             },
      37           0 :             [&] {
      38           0 :                 const std::optional<COutPoint> out_point = ConsumeDeserializable<COutPoint>(fuzzed_data_provider);
      39           0 :                 if (!out_point) {
      40           0 :                     return;
      41             :                 }
      42           0 :                 (void)bloom_filter.contains(*out_point);
      43           0 :                 bloom_filter.insert(*out_point);
      44           0 :                 const bool present = bloom_filter.contains(*out_point);
      45           0 :                 assert(present);
      46           0 :             },
      47           0 :             [&] {
      48           0 :                 const std::optional<uint256> u256 = ConsumeDeserializable<uint256>(fuzzed_data_provider);
      49           0 :                 if (!u256) {
      50           0 :                     return;
      51             :                 }
      52           0 :                 (void)bloom_filter.contains(*u256);
      53           0 :                 bloom_filter.insert(*u256);
      54           0 :                 const bool present = bloom_filter.contains(*u256);
      55           0 :                 assert(present);
      56           0 :             },
      57           0 :             [&] {
      58           0 :                 const std::optional<CMutableTransaction> mut_tx = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider);
      59           0 :                 if (!mut_tx) {
      60           0 :                     return;
      61             :                 }
      62           0 :                 const CTransaction tx{*mut_tx};
      63           0 :                 (void)bloom_filter.IsRelevantAndUpdate(tx);
      64           0 :             });
      65           0 :         (void)bloom_filter.IsWithinSizeConstraints();
      66           0 :     }
      67           0 : }