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Merge #18994: tests: Add fuzzing harnesses for functions in script/

Browse source 
f898ef65c9 tests: Add fuzzing harness for functions in script/sign.h (practicalswift)
c91d2f0615 tests: Add fuzzing harness for functions in script/sigcache.h (practicalswift)
d3d8adb79f tests: Add fuzzing harness for functions in script/interpreter.h (practicalswift)
fa80117cfd tests: Add fuzzing harness for functions in script/descriptor.h (practicalswift)
43fb8f0ca3 tests: Add fuzzing harness for functions in script/bitcoinconsensus.h (practicalswift)
8de72711c6 tests: Fill fuzzing coverage gaps for functions in script/script.h, script/script_error.h and script/standard.h (practicalswift)
c571ecb071 tests: Add fuzzing helper functions ConsumeDataStream, ConsumeTxDestination and ConsumeUInt160 (practicalswift)

Pull request description:

  Add fuzzing harnesses for functions in `script/`:
  * Add fuzzing helper functions `ConsumeDataStream` and `ConsumeUInt160`
  * Fill fuzzing coverage gaps for functions in `script/script.h`, `script/script_error.h` and `script/standard.h`
  * Add fuzzing harness for functions in `script/bitcoinconsensus.h`
  * Add fuzzing harness for functions in `script/descriptor.h`
  * Add fuzzing harness for functions in `script/interpreter.h`
  * Add fuzzing harness for functions in `script/sigcache.h`
  * Add fuzzing harness for functions in `script/sign.h`

  See [`doc/fuzzing.md`](https://github.com/bitcoin/bitcoin/blob/master/doc/fuzzing.md) for information on how to fuzz Bitcoin Core. Don't forget to contribute any coverage increasing inputs you find to the [Bitcoin Core fuzzing corpus repo](https://github.com/bitcoin-core/qa-assets).

  Happy fuzzing :)

ACKs for top commit:
  MarcoFalke:
    ACK f898ef65c9 🔉

Tree-SHA512: f6e77b34dc79f23de5fa9e38ac06e6554b5b946ec3e9a67e2bd982e60aca37ce844f785457ef427a5e3b45e31c305456bca8587cc9f4a0b50b3852e39726eb04
This commit is contained in:
MarcoFalke 2020-05-31 18:58:36 -04:00
commit a65b55fa45
No known key found for this signature in database
GPG key ID: CE2B75697E69A548
9 changed files with 442 additions and 2 deletions
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35
src/Makefile.test.include
View file

@ -110,9 +110,14 @@ FUZZ_TARGETS = \
test/fuzz/rbf \
test/fuzz/rolling_bloom_filter \
test/fuzz/script \
test/fuzz/script_bitcoin_consensus \
test/fuzz/script_descriptor_cache \
test/fuzz/script_deserialize \
test/fuzz/script_flags \
test/fuzz/script_interpreter \
test/fuzz/script_ops \
test/fuzz/script_sigcache \
test/fuzz/script_sign \
test/fuzz/scriptnum_ops \
test/fuzz/service_deserialize \
test/fuzz/signature_checker \
@ -941,6 +946,18 @@ test_fuzz_script_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_script_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_script_SOURCES = test/fuzz/script.cpp
test_fuzz_script_bitcoin_consensus_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_script_bitcoin_consensus_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_script_bitcoin_consensus_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_script_bitcoin_consensus_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_script_bitcoin_consensus_SOURCES = test/fuzz/script_bitcoin_consensus.cpp
test_fuzz_script_descriptor_cache_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_script_descriptor_cache_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_script_descriptor_cache_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_script_descriptor_cache_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_script_descriptor_cache_SOURCES = test/fuzz/script_descriptor_cache.cpp
test_fuzz_script_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DSCRIPT_DESERIALIZE=1
test_fuzz_script_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_script_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
@ -953,12 +970,30 @@ test_fuzz_script_flags_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_script_flags_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_script_flags_SOURCES = test/fuzz/script_flags.cpp
test_fuzz_script_interpreter_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_script_interpreter_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_script_interpreter_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_script_interpreter_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_script_interpreter_SOURCES = test/fuzz/script_interpreter.cpp
test_fuzz_script_ops_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_script_ops_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_script_ops_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_script_ops_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_script_ops_SOURCES = test/fuzz/script_ops.cpp
test_fuzz_script_sigcache_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_script_sigcache_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_script_sigcache_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_script_sigcache_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_script_sigcache_SOURCES = test/fuzz/script_sigcache.cpp
test_fuzz_script_sign_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_script_sign_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_script_sign_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_script_sign_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_script_sign_SOURCES = test/fuzz/script_sign.cpp
test_fuzz_scriptnum_ops_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_scriptnum_ops_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_scriptnum_ops_LDADD = $(FUZZ_SUITE_LD_COMMON)

39
src/test/fuzz/script.cpp
View file

@ -11,6 +11,7 @@
#include <script/descriptor.h>
#include <script/interpreter.h>
#include <script/script.h>
#include <script/script_error.h>
#include <script/sign.h>
#include <script/signingprovider.h>
#include <script/standard.h>
@ -21,6 +22,8 @@
#include <univalue.h>
#include <util/memory.h>
#include <algorithm>
#include <cassert>
#include <cstdint>
#include <optional>
#include <string>
@ -124,4 +127,40 @@ void test_one_input(const std::vector<uint8_t>& buffer)
wit.SetNull();
}
}
(void)GetOpName(ConsumeOpcodeType(fuzzed_data_provider));
(void)ScriptErrorString(static_cast<ScriptError>(fuzzed_data_provider.ConsumeIntegralInRange<int>(0, SCRIPT_ERR_ERROR_COUNT)));
{
const std::vector<uint8_t> bytes = ConsumeRandomLengthByteVector(fuzzed_data_provider);
CScript append_script{bytes.begin(), bytes.end()};
append_script << fuzzed_data_provider.ConsumeIntegral<int64_t>();
append_script << ConsumeOpcodeType(fuzzed_data_provider);
append_script << CScriptNum{fuzzed_data_provider.ConsumeIntegral<int64_t>()};
append_script << ConsumeRandomLengthByteVector(fuzzed_data_provider);
}
{
WitnessUnknown witness_unknown_1{};
witness_unknown_1.version = fuzzed_data_provider.ConsumeIntegral<int>();
const std::vector<uint8_t> witness_unknown_program_1 = fuzzed_data_provider.ConsumeBytes<uint8_t>(40);
witness_unknown_1.length = witness_unknown_program_1.size();
std::copy(witness_unknown_program_1.begin(), witness_unknown_program_1.end(), witness_unknown_1.program);
WitnessUnknown witness_unknown_2{};
witness_unknown_2.version = fuzzed_data_provider.ConsumeIntegral<int>();
const std::vector<uint8_t> witness_unknown_program_2 = fuzzed_data_provider.ConsumeBytes<uint8_t>(40);
witness_unknown_2.length = witness_unknown_program_2.size();
std::copy(witness_unknown_program_2.begin(), witness_unknown_program_2.end(), witness_unknown_2.program);
(void)(witness_unknown_1 == witness_unknown_2);
(void)(witness_unknown_1 < witness_unknown_2);
}
{
const CTxDestination tx_destination_1 = ConsumeTxDestination(fuzzed_data_provider);
const CTxDestination tx_destination_2 = ConsumeTxDestination(fuzzed_data_provider);
(void)(tx_destination_1 == tx_destination_2);
(void)(tx_destination_1 < tx_destination_2);
}
}

31
src/test/fuzz/script_bitcoin_consensus.cpp Normal file
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@ -0,0 +1,31 @@
// Copyright (c) 2020 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 <script/bitcoinconsensus.h>
#include <script/interpreter.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <cstdint>
#include <string>
#include <vector>
void test_one_input(const std::vector<uint8_t>& buffer)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
const std::vector<uint8_t> random_bytes_1 = ConsumeRandomLengthByteVector(fuzzed_data_provider);
const std::vector<uint8_t> random_bytes_2 = ConsumeRandomLengthByteVector(fuzzed_data_provider);
const CAmount money = ConsumeMoney(fuzzed_data_provider);
bitcoinconsensus_error err;
bitcoinconsensus_error* err_p = fuzzed_data_provider.ConsumeBool() ? &err : nullptr;
const unsigned int n_in = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
const unsigned int flags = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
assert(bitcoinconsensus_version() == BITCOINCONSENSUS_API_VER);
if ((flags & SCRIPT_VERIFY_WITNESS) != 0 && (flags & SCRIPT_VERIFY_P2SH) == 0) {
return;
}
(void)bitcoinconsensus_verify_script(random_bytes_1.data(), random_bytes_1.size(), random_bytes_2.data(), random_bytes_2.size(), n_in, flags, err_p);
(void)bitcoinconsensus_verify_script_with_amount(random_bytes_1.data(), random_bytes_1.size(), money, random_bytes_2.data(), random_bytes_2.size(), n_in, flags, err_p);
}

42
src/test/fuzz/script_descriptor_cache.cpp Normal file
View file

@ -0,0 +1,42 @@
// Copyright (c) 2020 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 <optional.h>
#include <pubkey.h>
#include <script/descriptor.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <cstdint>
#include <string>
#include <vector>
void test_one_input(const std::vector<uint8_t>& buffer)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
DescriptorCache descriptor_cache;
while (fuzzed_data_provider.ConsumeBool()) {
const std::vector<uint8_t> code = fuzzed_data_provider.ConsumeBytes<uint8_t>(BIP32_EXTKEY_SIZE);
if (code.size() == BIP32_EXTKEY_SIZE) {
CExtPubKey xpub;
xpub.Decode(code.data());
const uint32_t key_exp_pos = fuzzed_data_provider.ConsumeIntegral<uint32_t>();
CExtPubKey xpub_fetched;
if (fuzzed_data_provider.ConsumeBool()) {
(void)descriptor_cache.GetCachedParentExtPubKey(key_exp_pos, xpub_fetched);
descriptor_cache.CacheParentExtPubKey(key_exp_pos, xpub);
assert(descriptor_cache.GetCachedParentExtPubKey(key_exp_pos, xpub_fetched));
} else {
const uint32_t der_index = fuzzed_data_provider.ConsumeIntegral<uint32_t>();
(void)descriptor_cache.GetCachedDerivedExtPubKey(key_exp_pos, der_index, xpub_fetched);
descriptor_cache.CacheDerivedExtPubKey(key_exp_pos, der_index, xpub);
assert(descriptor_cache.GetCachedDerivedExtPubKey(key_exp_pos, der_index, xpub_fetched));
}
assert(xpub == xpub_fetched);
}
(void)descriptor_cache.GetCachedParentExtPubKeys();
(void)descriptor_cache.GetCachedDerivedExtPubKeys();
}
}

41
src/test/fuzz/script_interpreter.cpp Normal file
View file

@ -0,0 +1,41 @@
// Copyright (c) 2020 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 <primitives/transaction.h>
#include <script/interpreter.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <cstdint>
#include <optional>
#include <string>
#include <vector>
bool CastToBool(const std::vector<unsigned char>& vch);
void test_one_input(const std::vector<uint8_t>& buffer)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
{
const CScript script_code = ConsumeScript(fuzzed_data_provider);
const std::optional<CMutableTransaction> mtx = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider);
if (mtx) {
const CTransaction tx_to{*mtx};
const unsigned int in = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
if (in < tx_to.vin.size()) {
(void)SignatureHash(script_code, tx_to, in, fuzzed_data_provider.ConsumeIntegral<int>(), ConsumeMoney(fuzzed_data_provider), fuzzed_data_provider.PickValueInArray({SigVersion::BASE, SigVersion::WITNESS_V0}), nullptr);
const std::optional<CMutableTransaction> mtx_precomputed = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider);
if (mtx_precomputed) {
const CTransaction tx_precomputed{*mtx_precomputed};
const PrecomputedTransactionData precomputed_transaction_data{tx_precomputed};
(void)SignatureHash(script_code, tx_to, in, fuzzed_data_provider.ConsumeIntegral<int>(), ConsumeMoney(fuzzed_data_provider), fuzzed_data_provider.PickValueInArray({SigVersion::BASE, SigVersion::WITNESS_V0}), &precomputed_transaction_data);
}
}
}
}
{
(void)CastToBool(ConsumeRandomLengthByteVector(fuzzed_data_provider));
}
}

45
src/test/fuzz/script_sigcache.cpp Normal file
View file

@ -0,0 +1,45 @@
// Copyright (c) 2020 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 <key.h>
#include <pubkey.h>
#include <script/sigcache.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <cstdint>
#include <optional>
#include <string>
#include <vector>
void initialize()
{
static const ECCVerifyHandle ecc_verify_handle;
ECC_Start();
SelectParams(CBaseChainParams::REGTEST);
InitSignatureCache();
}
void test_one_input(const std::vector<uint8_t>& buffer)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
const std::optional<CMutableTransaction> mutable_transaction = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider);
const CTransaction tx = mutable_transaction ? CTransaction{*mutable_transaction} : CTransaction{};
const unsigned int n_in = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
const CAmount amount = ConsumeMoney(fuzzed_data_provider);
const bool store = fuzzed_data_provider.ConsumeBool();
PrecomputedTransactionData tx_data;
CachingTransactionSignatureChecker caching_transaction_signature_checker{mutable_transaction ? &tx : nullptr, n_in, amount, store, tx_data};
const std::optional<CPubKey> pub_key = ConsumeDeserializable<CPubKey>(fuzzed_data_provider);
if (pub_key) {
const std::vector<uint8_t> random_bytes = ConsumeRandomLengthByteVector(fuzzed_data_provider);
if (!random_bytes.empty()) {
(void)caching_transaction_signature_checker.VerifySignature(random_bytes, *pub_key, ConsumeUInt256(fuzzed_data_provider));
}
}
}

149
src/test/fuzz/script_sign.cpp Normal file
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@ -0,0 +1,149 @@
// Copyright (c) 2020 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 <key.h>
#include <pubkey.h>
#include <script/keyorigin.h>
#include <script/sign.h>
#include <script/signingprovider.h>
#include <streams.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <cassert>
#include <cstdint>
#include <iostream>
#include <map>
#include <optional>
#include <string>
#include <vector>
void initialize()
{
static const ECCVerifyHandle ecc_verify_handle;
ECC_Start();
SelectParams(CBaseChainParams::REGTEST);
}
void test_one_input(const std::vector<uint8_t>& buffer)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
const std::vector<uint8_t> key = ConsumeRandomLengthByteVector(fuzzed_data_provider, 128);
{
CDataStream random_data_stream = ConsumeDataStream(fuzzed_data_provider);
std::map<CPubKey, KeyOriginInfo> hd_keypaths;
try {
DeserializeHDKeypaths(random_data_stream, key, hd_keypaths);
} catch (const std::ios_base::failure&) {
}
CDataStream serialized{SER_NETWORK, PROTOCOL_VERSION};
SerializeHDKeypaths(serialized, hd_keypaths, fuzzed_data_provider.ConsumeIntegral<uint8_t>());
}
{
std::map<CPubKey, KeyOriginInfo> hd_keypaths;
while (fuzzed_data_provider.ConsumeBool()) {
const std::optional<CPubKey> pub_key = ConsumeDeserializable<CPubKey>(fuzzed_data_provider);
if (!pub_key) {
break;
}
const std::optional<KeyOriginInfo> key_origin_info = ConsumeDeserializable<KeyOriginInfo>(fuzzed_data_provider);
if (!key_origin_info) {
break;
}
hd_keypaths[*pub_key] = *key_origin_info;
}
CDataStream serialized{SER_NETWORK, PROTOCOL_VERSION};
try {
SerializeHDKeypaths(serialized, hd_keypaths, fuzzed_data_provider.ConsumeIntegral<uint8_t>());
} catch (const std::ios_base::failure&) {
}
std::map<CPubKey, KeyOriginInfo> deserialized_hd_keypaths;
try {
DeserializeHDKeypaths(serialized, key, hd_keypaths);
} catch (const std::ios_base::failure&) {
}
assert(hd_keypaths.size() >= deserialized_hd_keypaths.size());
}
{
SignatureData signature_data_1{ConsumeScript(fuzzed_data_provider)};
SignatureData signature_data_2{ConsumeScript(fuzzed_data_provider)};
signature_data_1.MergeSignatureData(signature_data_2);
}
FillableSigningProvider provider;
CKey k;
const std::vector<uint8_t> key_data = ConsumeRandomLengthByteVector(fuzzed_data_provider);
k.Set(key_data.begin(), key_data.end(), fuzzed_data_provider.ConsumeBool());
if (k.IsValid()) {
provider.AddKey(k);
}
{
const std::optional<CMutableTransaction> mutable_transaction = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider);
const std::optional<CTxOut> tx_out = ConsumeDeserializable<CTxOut>(fuzzed_data_provider);
const unsigned int n_in = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
if (mutable_transaction && tx_out && mutable_transaction->vin.size() > n_in) {
SignatureData signature_data_1 = DataFromTransaction(*mutable_transaction, n_in, *tx_out);
CTxIn input;
UpdateInput(input, signature_data_1);
const CScript script = ConsumeScript(fuzzed_data_provider);
SignatureData signature_data_2{script};
signature_data_1.MergeSignatureData(signature_data_2);
}
if (mutable_transaction) {
CTransaction tx_from{*mutable_transaction};
CMutableTransaction tx_to;
const std::optional<CMutableTransaction> opt_tx_to = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider);
if (opt_tx_to) {
tx_to = *opt_tx_to;
}
CMutableTransaction script_tx_to = tx_to;
CMutableTransaction sign_transaction_tx_to = tx_to;
if (n_in < tx_to.vin.size() && tx_to.vin[n_in].prevout.n < tx_from.vout.size()) {
(void)SignSignature(provider, tx_from, tx_to, n_in, fuzzed_data_provider.ConsumeIntegral<int>());
}
if (n_in < script_tx_to.vin.size()) {
(void)SignSignature(provider, ConsumeScript(fuzzed_data_provider), script_tx_to, n_in, ConsumeMoney(fuzzed_data_provider), fuzzed_data_provider.ConsumeIntegral<int>());
MutableTransactionSignatureCreator signature_creator{&tx_to, n_in, ConsumeMoney(fuzzed_data_provider), fuzzed_data_provider.ConsumeIntegral<int>()};
std::vector<unsigned char> vch_sig;
CKeyID address;
if (fuzzed_data_provider.ConsumeBool()) {
if (k.IsValid()) {
address = k.GetPubKey().GetID();
}
} else {
address = CKeyID{ConsumeUInt160(fuzzed_data_provider)};
}
(void)signature_creator.CreateSig(provider, vch_sig, address, ConsumeScript(fuzzed_data_provider), fuzzed_data_provider.PickValueInArray({SigVersion::BASE, SigVersion::WITNESS_V0}));
}
std::map<COutPoint, Coin> coins;
while (fuzzed_data_provider.ConsumeBool()) {
const std::optional<COutPoint> outpoint = ConsumeDeserializable<COutPoint>(fuzzed_data_provider);
if (!outpoint) {
break;
}
const std::optional<Coin> coin = ConsumeDeserializable<Coin>(fuzzed_data_provider);
if (!coin) {
break;
}
coins[*outpoint] = *coin;
}
std::map<int, std::string> input_errors;
(void)SignTransaction(sign_transaction_tx_to, &provider, coins, fuzzed_data_provider.ConsumeIntegral<int>(), input_errors);
}
}
{
SignatureData signature_data_1;
(void)ProduceSignature(provider, DUMMY_SIGNATURE_CREATOR, ConsumeScript(fuzzed_data_provider), signature_data_1);
SignatureData signature_data_2;
(void)ProduceSignature(provider, DUMMY_MAXIMUM_SIGNATURE_CREATOR, ConsumeScript(fuzzed_data_provider), signature_data_2);
}
}

5
src/test/fuzz/string.cpp
View file

@ -12,6 +12,7 @@
#include <rpc/server.h>
#include <rpc/util.h>
#include <script/descriptor.h>
#include <script/script.h>
#include <serialize.h>
#include <streams.h>
#include <test/fuzz/FuzzedDataProvider.h>
@ -89,6 +90,10 @@ void test_one_input(const std::vector<uint8_t>& buffer)
(void)urlDecode(random_string_1);
(void)ValidAsCString(random_string_1);
(void)_(random_string_1.c_str());
try {
throw scriptnum_error{random_string_1};
} catch (const std::runtime_error&) {
}
{
CDataStream data_stream{SER_NETWORK, INIT_PROTO_VERSION};

57
src/test/fuzz/util.h
View file

@ -12,6 +12,7 @@
#include <consensus/consensus.h>
#include <primitives/transaction.h>
#include <script/script.h>
#include <script/standard.h>
#include <serialize.h>
#include <streams.h>
#include <test/fuzz/FuzzedDataProvider.h>
@ -20,6 +21,7 @@
#include <uint256.h>
#include <version.h>
#include <algorithm>
#include <cstdint>
#include <optional>
#include <string>
@ -31,6 +33,11 @@ NODISCARD inline std::vector<uint8_t> ConsumeRandomLengthByteVector(FuzzedDataPr
return {s.begin(), s.end()};
}
NODISCARD inline CDataStream ConsumeDataStream(FuzzedDataProvider& fuzzed_data_provider, const size_t max_length = 4096) noexcept
{
return {ConsumeRandomLengthByteVector(fuzzed_data_provider, max_length), SER_NETWORK, INIT_PROTO_VERSION};
}
NODISCARD inline std::vector<std::string> ConsumeRandomLengthStringVector(FuzzedDataProvider& fuzzed_data_provider, const size_t max_vector_size = 16, const size_t max_string_length = 16) noexcept
{
const size_t n_elements = fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, max_vector_size);
@ -87,10 +94,19 @@ NODISCARD inline CScriptNum ConsumeScriptNum(FuzzedDataProvider& fuzzed_data_pro
return CScriptNum{fuzzed_data_provider.ConsumeIntegral<int64_t>()};
}
NODISCARD inline uint160 ConsumeUInt160(FuzzedDataProvider& fuzzed_data_provider) noexcept
{
const std::vector<uint8_t> v160 = fuzzed_data_provider.ConsumeBytes<uint8_t>(160 / 8);
if (v160.size() != 160 / 8) {
return {};
}
return uint160{v160};
}
NODISCARD inline uint256 ConsumeUInt256(FuzzedDataProvider& fuzzed_data_provider) noexcept
{
const std::vector<unsigned char> v256 = fuzzed_data_provider.ConsumeBytes<unsigned char>(sizeof(uint256));
if (v256.size() != sizeof(uint256)) {
const std::vector<uint8_t> v256 = fuzzed_data_provider.ConsumeBytes<uint8_t>(256 / 8);
if (v256.size() != 256 / 8) {
return {};
}
return uint256{v256};
@ -116,6 +132,43 @@ NODISCARD inline CTxMemPoolEntry ConsumeTxMemPoolEntry(FuzzedDataProvider& fuzze
return CTxMemPoolEntry{MakeTransactionRef(tx), fee, time, entry_height, spends_coinbase, sig_op_cost, {}};
}
NODISCARD inline CTxDestination ConsumeTxDestination(FuzzedDataProvider& fuzzed_data_provider) noexcept
{
CTxDestination tx_destination;
switch (fuzzed_data_provider.ConsumeIntegralInRange<int>(0, 5)) {
case 0: {
tx_destination = CNoDestination{};
break;
}
case 1: {
tx_destination = PKHash{ConsumeUInt160(fuzzed_data_provider)};
break;
}
case 2: {
tx_destination = ScriptHash{ConsumeUInt160(fuzzed_data_provider)};
break;
}
case 3: {
tx_destination = WitnessV0ScriptHash{ConsumeUInt256(fuzzed_data_provider)};
break;
}
case 4: {
tx_destination = WitnessV0KeyHash{ConsumeUInt160(fuzzed_data_provider)};
break;
}
case 5: {
WitnessUnknown witness_unknown{};
witness_unknown.version = fuzzed_data_provider.ConsumeIntegral<int>();
const std::vector<uint8_t> witness_unknown_program_1 = fuzzed_data_provider.ConsumeBytes<uint8_t>(40);
witness_unknown.length = witness_unknown_program_1.size();
std::copy(witness_unknown_program_1.begin(), witness_unknown_program_1.end(), witness_unknown.program);
tx_destination = witness_unknown;
break;
}
}
return tx_destination;
}
template <typename T>
NODISCARD bool MultiplicationOverflow(const T i, const T j) noexcept
{