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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.

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1// Copyright (c) 2020-present 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 <addrdb.h>
6#include <addrman.h>
7#include <addrman_impl.h>
8#include <chainparams.h>
9#include <common/args.h>
10#include <merkleblock.h>
11#include <random.h>
12#include <test/fuzz/FuzzedDataProvider.h>
13#include <test/fuzz/fuzz.h>
14#include <test/fuzz/util.h>
15#include <test/fuzz/util/net.h>
16#include <test/util/setup_common.h>
17#include <test/util/time.h>
18#include <util/asmap.h>
19#include <util/chaintype.h>
20
21#include <cassert>
22#include <cstdint>
23#include <ctime>
24#include <optional>
25#include <string>
26#include <vector>
27
28namespace {
29const BasicTestingSetup* g_setup;
30
31int32_t GetCheckRatio()
32{
33    return std::clamp<int32_t>(g_setup->m_node.args->GetIntArg("-checkaddrman", 0), 0, 1000000);
34}
35} // namespace
36
37void initialize_addrman()
38{
39    static const auto testing_setup = MakeNoLogFileContext<>(ChainType::REGTEST);
40    g_setup = testing_setup.get();
41}
42
43FUZZ_TARGET(data_stream_addr_man, .init = initialize_addrman)
44{
45    SeedRandomStateForTest(SeedRand::ZEROS);
46    FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
47    DataStream data_stream = ConsumeDataStream(fuzzed_data_provider);
48    NetGroupManager netgroupman{ConsumeNetGroupManager(fuzzed_data_provider)};
49    AddrMan addr_man(netgroupman, /*deterministic=*/false, GetCheckRatio());
50    try {
51        ReadFromStream(addr_man, data_stream);
52    } catch (const std::exception&) {
53    }
54}
55
56/**
57 * Generate a random address. Always returns a valid address.
58 */
59CNetAddr RandAddr(FuzzedDataProvider& fuzzed_data_provider, FastRandomContext& fast_random_context)
60{
61    CNetAddr addr;
62    assert(!addr.IsValid());
63    for (size_t i = 0; i < 8 && !addr.IsValid(); ++i) {
64        if (fuzzed_data_provider.remaining_bytes() > 1 && fuzzed_data_provider.ConsumeBool()) {
65            addr = ConsumeNetAddr(fuzzed_data_provider);
66        } else {
67            addr = ConsumeNetAddr(fuzzed_data_provider, &fast_random_context);
68        }
69    }
70
71    // Return a dummy IPv4 5.5.5.5 if we generated an invalid address.
72    if (!addr.IsValid()) {
73        in_addr v4_addr = {};
74        v4_addr.s_addr = 0x05050505;
75        addr = CNetAddr{v4_addr};
76    }
77
78    return addr;
79}
80
81/** Fill addrman with lots of addresses from lots of sources.  */
82void FillAddrman(AddrMan& addrman, FuzzedDataProvider& fuzzed_data_provider)
83{
84    // Add a fraction of the addresses to the "tried" table.
85    // 0, 1, 2, 3 corresponding to 0%, 100%, 50%, 33%
86    const size_t n = fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 3);
87
88    const size_t num_sources = fuzzed_data_provider.ConsumeIntegralInRange<size_t>(1, 50);
89    CNetAddr prev_source;
90    // Generate a FastRandomContext seed to use inside the loops instead of
91    // fuzzed_data_provider. When fuzzed_data_provider is exhausted it
92    // just returns 0.
93    FastRandomContext fast_random_context{ConsumeUInt256(fuzzed_data_provider)};
94    for (size_t i = 0; i < num_sources; ++i) {
95        const auto source = RandAddr(fuzzed_data_provider, fast_random_context);
96        const size_t num_addresses = fast_random_context.randrange(500) + 1; // [1..500]
97
98        for (size_t j = 0; j < num_addresses; ++j) {
99            const auto addr = CAddress{CService{RandAddr(fuzzed_data_provider, fast_random_context), 8333}, NODE_NETWORK};
100            const std::chrono::seconds time_penalty{fast_random_context.randrange(100000001)};
101            addrman.Add({addr}, source, time_penalty);
102
103            if (n > 0 && addrman.Size() % n == 0) {
104                addrman.Good(addr, Now<NodeSeconds>());
105            }
106
107            // Add 10% of the addresses from more than one source.
108            if (fast_random_context.randrange(10) == 0 && prev_source.IsValid()) {
109                addrman.Add({addr}, prev_source, time_penalty);
110            }
111        }
112        prev_source = source;
113    }
114}
115
116FUZZ_TARGET(addrman, .init = initialize_addrman)
117{
118    SeedRandomStateForTest(SeedRand::ZEROS);
119    FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
120    FakeNodeClock clock{ConsumeTime(fuzzed_data_provider)};
121    NetGroupManager netgroupman{ConsumeNetGroupManager(fuzzed_data_provider)};
122    auto addr_man_ptr = std::make_unique<AddrManDeterministic>(netgroupman, fuzzed_data_provider, GetCheckRatio());
123    if (fuzzed_data_provider.ConsumeBool()) {
124        const std::vector<uint8_t> serialized_data{ConsumeRandomLengthByteVector(fuzzed_data_provider)};
125        DataStream ds{serialized_data};
126        try {
127            ds >> *addr_man_ptr;
128        } catch (const std::ios_base::failure&) {
129            addr_man_ptr = std::make_unique<AddrManDeterministic>(netgroupman, fuzzed_data_provider, GetCheckRatio());
130        }
131    }
132    AddrManDeterministic& addr_man = *addr_man_ptr;
133    LIMITED_WHILE (fuzzed_data_provider.ConsumeBool(), 10000) {
134        CallOneOf(
135            fuzzed_data_provider,
136            [&] {
137                addr_man.ResolveCollisions();
138            },
139            [&] {
140                (void)addr_man.SelectTriedCollision();
141            },
142            [&] {
143                std::vector<CAddress> addresses;
144                LIMITED_WHILE (fuzzed_data_provider.ConsumeBool(), 10000) {
145                    addresses.push_back(ConsumeAddress(fuzzed_data_provider));
146                }
147                auto net_addr = ConsumeNetAddr(fuzzed_data_provider);
148                auto time_penalty = ConsumeDuration<std::chrono::seconds>(fuzzed_data_provider, /*min=*/0s, /*max=*/100000000s);
149                addr_man.Add(addresses, net_addr, time_penalty);
150            },
151            [&] {
152                auto addr = ConsumeService(fuzzed_data_provider);
153                auto time = ConsumeTime(fuzzed_data_provider);
154                addr_man.Good(addr, time);
155            },
156            [&] {
157                auto addr = ConsumeService(fuzzed_data_provider);
158                auto count_failure = fuzzed_data_provider.ConsumeBool();
159                auto time = ConsumeTime(fuzzed_data_provider);
160                addr_man.Attempt(addr, count_failure, time);
161            },
162            [&] {
163                auto addr = ConsumeService(fuzzed_data_provider);
164                auto time = ConsumeTime(fuzzed_data_provider);
165                addr_man.Connected(addr, time);
166            },
167            [&] {
168                auto addr = ConsumeService(fuzzed_data_provider);
169                auto n_services = ConsumeWeakEnum(fuzzed_data_provider, ALL_SERVICE_FLAGS);
170                addr_man.SetServices(addr, n_services);
171            });
172    }
173    const AddrMan& const_addr_man{addr_man};
174    std::optional<Network> network;
175    if (fuzzed_data_provider.ConsumeBool()) {
176        network = fuzzed_data_provider.PickValueInArray(ALL_NETWORKS);
177    }
178    auto max_addresses = fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 4096);
179    auto max_pct = fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 100);
180    auto filtered = fuzzed_data_provider.ConsumeBool();
181    (void)const_addr_man.GetAddr(max_addresses, max_pct, network, filtered);
182
183    std::unordered_set<Network> nets;
184    for (const auto& net : ALL_NETWORKS) {
185        if (fuzzed_data_provider.ConsumeBool()) {
186            nets.insert(net);
187        }
188    }
189    (void)const_addr_man.Select(fuzzed_data_provider.ConsumeBool(), nets);
190
191    std::optional<bool> in_new;
192    if (fuzzed_data_provider.ConsumeBool()) {
193        in_new = fuzzed_data_provider.ConsumeBool();
194    }
195    (void)const_addr_man.Size(network, in_new);
196    DataStream data_stream{};
197    data_stream << const_addr_man;
198}
199
200// Check that serialize followed by unserialize produces the same addrman.
201FUZZ_TARGET(addrman_serdeser, .init = initialize_addrman)
202{
203    SeedRandomStateForTest(SeedRand::ZEROS);
204    FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
205    FakeNodeClock clock{ConsumeTime(fuzzed_data_provider)};
206
207    NetGroupManager netgroupman{ConsumeNetGroupManager(fuzzed_data_provider)};
208    AddrManDeterministic addr_man1{netgroupman, fuzzed_data_provider, GetCheckRatio()};
209    AddrManDeterministic addr_man2{netgroupman, fuzzed_data_provider, GetCheckRatio()};
210
211    DataStream data_stream{};
212
213    FillAddrman(addr_man1, fuzzed_data_provider);
214    data_stream << addr_man1;
215    data_stream >> addr_man2;
216    assert(addr_man1 == addr_man2);
217}
218

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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