Line data    Source code

       1             : // Copyright (c) 2020-2022 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 <net.h>
       6             : #include <protocol.h>
       7             : #include <test/fuzz/FuzzedDataProvider.h>
       8             : #include <test/fuzz/fuzz.h>
       9             : #include <test/fuzz/util.h>
      10             : #include <test/fuzz/util/net.h>
      11             : 
      12             : #include <algorithm>
      13             : #include <cassert>
      14             : #include <cstdint>
      15             : #include <optional>
      16             : #include <vector>
      17           2 : 
      18           6 : FUZZ_TARGET(node_eviction)
      19             : {
      20           0 :     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
      21           0 :     std::vector<NodeEvictionCandidate> eviction_candidates;
      22           0 :     LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) {
      23           0 :         eviction_candidates.push_back({
      24           0 :             /*id=*/fuzzed_data_provider.ConsumeIntegral<NodeId>(),
      25           2 :             /*m_connected=*/std::chrono::seconds{fuzzed_data_provider.ConsumeIntegral<int64_t>()},
      26           0 :             /*m_min_ping_time=*/std::chrono::microseconds{fuzzed_data_provider.ConsumeIntegral<int64_t>()},
      27           0 :             /*m_last_block_time=*/std::chrono::seconds{fuzzed_data_provider.ConsumeIntegral<int64_t>()},
      28           0 :             /*m_last_tx_time=*/std::chrono::seconds{fuzzed_data_provider.ConsumeIntegral<int64_t>()},
      29           0 :             /*fRelevantServices=*/fuzzed_data_provider.ConsumeBool(),
      30           0 :             /*m_relay_txs=*/fuzzed_data_provider.ConsumeBool(),
      31           0 :             /*fBloomFilter=*/fuzzed_data_provider.ConsumeBool(),
      32           0 :             /*nKeyedNetGroup=*/fuzzed_data_provider.ConsumeIntegral<uint64_t>(),
      33           0 :             /*prefer_evict=*/fuzzed_data_provider.ConsumeBool(),
      34           0 :             /*m_is_local=*/fuzzed_data_provider.ConsumeBool(),
      35           0 :             /*m_network=*/fuzzed_data_provider.PickValueInArray(ALL_NETWORKS),
      36           0 :             /*m_noban=*/fuzzed_data_provider.ConsumeBool(),
      37           0 :             /*m_conn_type=*/fuzzed_data_provider.PickValueInArray(ALL_CONNECTION_TYPES),
      38             :         });
      39           0 :     }
      40             :     // Make a copy since eviction_candidates may be in some valid but otherwise
      41             :     // indeterminate state after the SelectNodeToEvict(&&) call.
      42           0 :     const std::vector<NodeEvictionCandidate> eviction_candidates_copy = eviction_candidates;
      43           0 :     const std::optional<NodeId> node_to_evict = SelectNodeToEvict(std::move(eviction_candidates));
      44           0 :     if (node_to_evict) {
      45           0 :         assert(std::any_of(eviction_candidates_copy.begin(), eviction_candidates_copy.end(), [&node_to_evict](const NodeEvictionCandidate& eviction_candidate) { return *node_to_evict == eviction_candidate.id; }));
      46           0 :     }
      47           0 : }