net.cpp raw

   1  // Copyright (c) 2020-2022 The Limenka 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 <chainparams.h>
   6  #include <net.h>
   7  #include <net_permissions.h>
   8  #include <netaddress.h>
   9  #include <protocol.h>
  10  #include <random.h>
  11  #include <test/fuzz/FuzzedDataProvider.h>
  12  #include <test/fuzz/fuzz.h>
  13  #include <test/fuzz/util.h>
  14  #include <test/fuzz/util/net.h>
  15  #include <test/util/net.h>
  16  #include <test/util/setup_common.h>
  17  #include <util/asmap.h>
  18  #include <util/chaintype.h>
  19  #include <util/time.h>
  20  
  21  #include <cstdint>
  22  #include <optional>
  23  #include <string>
  24  #include <vector>
  25  
  26  void initialize_net()
  27  {
  28      static const auto testing_setup = MakeNoLogFileContext<>(ChainType::MAIN);
  29  }
  30  
  31  FUZZ_TARGET(net, .init = initialize_net)
  32  {
  33      FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
  34      SetMockTime(ConsumeTime(fuzzed_data_provider));
  35      CNode node{ConsumeNode(fuzzed_data_provider)};
  36      node.SetCommonVersion(fuzzed_data_provider.ConsumeIntegral<int>());
  37      if (const auto service_opt =
  38              ConsumeDeserializable<CService>(fuzzed_data_provider, ConsumeDeserializationParams<CNetAddr::SerParams>(fuzzed_data_provider)))
  39      {
  40          node.SetAddrLocal(*service_opt);
  41      }
  42      LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) {
  43          CallOneOf(
  44              fuzzed_data_provider,
  45              [&] {
  46                  node.CloseSocketDisconnect();
  47              },
  48              [&] {
  49                  CNodeStats stats;
  50                  node.CopyStats(stats);
  51              },
  52              [&] {
  53                  const CNode* add_ref_node = node.AddRef();
  54                  assert(add_ref_node == &node);
  55              },
  56              [&] {
  57                  if (node.GetRefCount() > 0) {
  58                      node.Release();
  59                  }
  60              },
  61              [&] {
  62                  const std::vector<uint8_t> b = ConsumeRandomLengthByteVector(fuzzed_data_provider);
  63                  bool complete;
  64                  node.ReceiveMsgBytes(b, complete);
  65              });
  66      }
  67  
  68      (void)node.GetAddrLocal();
  69      (void)node.GetId();
  70      (void)node.GetLocalNonce();
  71      const int ref_count = node.GetRefCount();
  72      assert(ref_count >= 0);
  73      (void)node.GetCommonVersion();
  74  
  75      const NetPermissionFlags net_permission_flags = ConsumeWeakEnum(fuzzed_data_provider, ALL_NET_PERMISSION_FLAGS);
  76      (void)node.HasPermission(net_permission_flags);
  77      (void)node.ConnectedThroughNetwork();
  78  }
  79  
  80  FUZZ_TARGET(local_address, .init = initialize_net)
  81  {
  82      FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
  83      SetMockTime(ConsumeTime(fuzzed_data_provider));
  84      CService service{ConsumeService(fuzzed_data_provider)};
  85      CNode node{ConsumeNode(fuzzed_data_provider)};
  86      {
  87          LOCK(g_maplocalhost_mutex);
  88          mapLocalHost.clear();
  89      }
  90      LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) {
  91          CallOneOf(
  92              fuzzed_data_provider,
  93              [&] {
  94                  service = ConsumeService(fuzzed_data_provider);
  95              },
  96              [&] {
  97                  const bool added{AddLocal(service, fuzzed_data_provider.ConsumeIntegralInRange<int>(0, LOCAL_MAX - 1))};
  98                  if (!added) return;
  99                  assert(service.IsRoutable());
 100                  assert(IsLocal(service));
 101                  assert(SeenLocal(service));
 102              },
 103              [&] {
 104                  (void)RemoveLocal(service);
 105              },
 106              [&] {
 107                  (void)SeenLocal(service);
 108              },
 109              [&] {
 110                  (void)IsLocal(service);
 111              },
 112              [&] {
 113                  (void)GetLocalAddress(node);
 114              });
 115      }
 116  }
 117