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// Copyright (c) 2020-2021 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 <chainparams.h>
#include <chainparamsbase.h>
#include <net.h>
#include <net_permissions.h>
#include <netaddress.h>
#include <protocol.h>
#include <random.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <test/util/net.h>
#include <test/util/setup_common.h>
#include <cstdint>
#include <optional>
#include <string>
#include <vector>
void initialize_net()
{
static const auto testing_setup = MakeNoLogFileContext<>(CBaseChainParams::MAIN);
}
FUZZ_TARGET_INIT(net, initialize_net)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
SetMockTime(ConsumeTime(fuzzed_data_provider));
CNode node{ConsumeNode(fuzzed_data_provider)};
node.SetCommonVersion(fuzzed_data_provider.ConsumeIntegral<int>());
while (fuzzed_data_provider.ConsumeBool()) {
CallOneOf(
fuzzed_data_provider,
[&] {
node.CloseSocketDisconnect();
},
[&] {
node.MaybeSetAddrName(fuzzed_data_provider.ConsumeRandomLengthString(32));
},
[&] {
const std::vector<bool> asmap = ConsumeRandomLengthBitVector(fuzzed_data_provider);
if (!SanityCheckASMap(asmap)) {
return;
}
CNodeStats stats;
node.copyStats(stats, asmap);
},
[&] {
const CNode* add_ref_node = node.AddRef();
assert(add_ref_node == &node);
},
[&] {
if (node.GetRefCount() > 0) {
node.Release();
}
},
[&] {
if (node.m_addr_known == nullptr) {
return;
}
const std::optional<CAddress> addr_opt = ConsumeDeserializable<CAddress>(fuzzed_data_provider);
if (!addr_opt) {
return;
}
node.AddAddressKnown(*addr_opt);
},
[&] {
if (node.m_addr_known == nullptr) {
return;
}
const std::optional<CAddress> addr_opt = ConsumeDeserializable<CAddress>(fuzzed_data_provider);
if (!addr_opt) {
return;
}
FastRandomContext fast_random_context{ConsumeUInt256(fuzzed_data_provider)};
node.PushAddress(*addr_opt, fast_random_context);
},
[&] {
const std::optional<CInv> inv_opt = ConsumeDeserializable<CInv>(fuzzed_data_provider);
if (!inv_opt) {
return;
}
node.AddKnownTx(inv_opt->hash);
},
[&] {
node.PushTxInventory(ConsumeUInt256(fuzzed_data_provider));
},
[&] {
const std::optional<CService> service_opt = ConsumeDeserializable<CService>(fuzzed_data_provider);
if (!service_opt) {
return;
}
node.SetAddrLocal(*service_opt);
},
[&] {
const std::vector<uint8_t> b = ConsumeRandomLengthByteVector(fuzzed_data_provider);
bool complete;
node.ReceiveMsgBytes(b, complete);
});
}
(void)node.GetAddrLocal();
(void)node.GetAddrName();
(void)node.GetId();
(void)node.GetLocalNonce();
(void)node.GetLocalServices();
const int ref_count = node.GetRefCount();
assert(ref_count >= 0);
(void)node.GetCommonVersion();
(void)node.RelayAddrsWithConn();
const NetPermissionFlags net_permission_flags = ConsumeWeakEnum(fuzzed_data_provider, ALL_NET_PERMISSION_FLAGS);
(void)node.HasPermission(net_permission_flags);
(void)node.ConnectedThroughNetwork();
}
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