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// Copyright (c) 2009-2021 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 <addrdb.h>
#include <addrman.h>
#include <blockencodings.h>
#include <blockfilter.h>
#include <chain.h>
#include <coins.h>
#include <compressor.h>
#include <consensus/merkle.h>
#include <key.h>
#include <merkleblock.h>
#include <net.h>
#include <netbase.h>
#include <node/utxo_snapshot.h>
#include <primitives/block.h>
#include <protocol.h>
#include <psbt.h>
#include <pubkey.h>
#include <script/keyorigin.h>
#include <streams.h>
#include <undo.h>
#include <version.h>
#include <exception>
#include <optional>
#include <stdexcept>
#include <stdint.h>
#include <unistd.h>
#include <test/fuzz/fuzz.h>
void initialize_deserialize()
{
// Fuzzers using pubkey must hold an ECCVerifyHandle.
static const ECCVerifyHandle verify_handle;
}
#define FUZZ_TARGET_DESERIALIZE(name, code) \
FUZZ_TARGET_INIT(name, initialize_deserialize) \
{ \
try { \
code \
} catch (const invalid_fuzzing_input_exception&) { \
} \
}
namespace {
struct invalid_fuzzing_input_exception : public std::exception {
};
template <typename T>
CDataStream Serialize(const T& obj, const int version = INIT_PROTO_VERSION, const int ser_type = SER_NETWORK)
{
CDataStream ds(ser_type, version);
ds << obj;
return ds;
}
template <typename T>
T Deserialize(CDataStream ds)
{
T obj;
ds >> obj;
return obj;
}
template <typename T>
void DeserializeFromFuzzingInput(FuzzBufferType buffer, T& obj, const std::optional<int> protocol_version = std::nullopt, const int ser_type = SER_NETWORK)
{
CDataStream ds(buffer, ser_type, INIT_PROTO_VERSION);
if (protocol_version) {
ds.SetVersion(*protocol_version);
} else {
try {
int version;
ds >> version;
ds.SetVersion(version);
} catch (const std::ios_base::failure&) {
throw invalid_fuzzing_input_exception();
}
}
try {
ds >> obj;
} catch (const std::ios_base::failure&) {
throw invalid_fuzzing_input_exception();
}
assert(buffer.empty() || !Serialize(obj).empty());
}
template <typename T>
void AssertEqualAfterSerializeDeserialize(const T& obj, const int version = INIT_PROTO_VERSION, const int ser_type = SER_NETWORK)
{
assert(Deserialize<T>(Serialize(obj, version, ser_type)) == obj);
}
} // namespace
FUZZ_TARGET_DESERIALIZE(block_filter_deserialize, {
BlockFilter block_filter;
DeserializeFromFuzzingInput(buffer, block_filter);
})
FUZZ_TARGET_DESERIALIZE(addr_info_deserialize, {
CAddrInfo addr_info;
DeserializeFromFuzzingInput(buffer, addr_info);
})
FUZZ_TARGET_DESERIALIZE(block_file_info_deserialize, {
CBlockFileInfo block_file_info;
DeserializeFromFuzzingInput(buffer, block_file_info);
})
FUZZ_TARGET_DESERIALIZE(block_header_and_short_txids_deserialize, {
CBlockHeaderAndShortTxIDs block_header_and_short_txids;
DeserializeFromFuzzingInput(buffer, block_header_and_short_txids);
})
FUZZ_TARGET_DESERIALIZE(fee_rate_deserialize, {
CFeeRate fee_rate;
DeserializeFromFuzzingInput(buffer, fee_rate);
AssertEqualAfterSerializeDeserialize(fee_rate);
})
FUZZ_TARGET_DESERIALIZE(merkle_block_deserialize, {
CMerkleBlock merkle_block;
DeserializeFromFuzzingInput(buffer, merkle_block);
})
FUZZ_TARGET_DESERIALIZE(out_point_deserialize, {
COutPoint out_point;
DeserializeFromFuzzingInput(buffer, out_point);
AssertEqualAfterSerializeDeserialize(out_point);
})
FUZZ_TARGET_DESERIALIZE(partial_merkle_tree_deserialize, {
CPartialMerkleTree partial_merkle_tree;
DeserializeFromFuzzingInput(buffer, partial_merkle_tree);
})
FUZZ_TARGET_DESERIALIZE(pub_key_deserialize, {
CPubKey pub_key;
DeserializeFromFuzzingInput(buffer, pub_key);
AssertEqualAfterSerializeDeserialize(pub_key);
})
FUZZ_TARGET_DESERIALIZE(script_deserialize, {
CScript script;
DeserializeFromFuzzingInput(buffer, script);
})
FUZZ_TARGET_DESERIALIZE(tx_in_deserialize, {
CTxIn tx_in;
DeserializeFromFuzzingInput(buffer, tx_in);
AssertEqualAfterSerializeDeserialize(tx_in);
})
FUZZ_TARGET_DESERIALIZE(flat_file_pos_deserialize, {
FlatFilePos flat_file_pos;
DeserializeFromFuzzingInput(buffer, flat_file_pos);
AssertEqualAfterSerializeDeserialize(flat_file_pos);
})
FUZZ_TARGET_DESERIALIZE(key_origin_info_deserialize, {
KeyOriginInfo key_origin_info;
DeserializeFromFuzzingInput(buffer, key_origin_info);
AssertEqualAfterSerializeDeserialize(key_origin_info);
})
FUZZ_TARGET_DESERIALIZE(partially_signed_transaction_deserialize, {
PartiallySignedTransaction partially_signed_transaction;
DeserializeFromFuzzingInput(buffer, partially_signed_transaction);
})
FUZZ_TARGET_DESERIALIZE(prefilled_transaction_deserialize, {
PrefilledTransaction prefilled_transaction;
DeserializeFromFuzzingInput(buffer, prefilled_transaction);
})
FUZZ_TARGET_DESERIALIZE(psbt_input_deserialize, {
PSBTInput psbt_input;
DeserializeFromFuzzingInput(buffer, psbt_input);
})
FUZZ_TARGET_DESERIALIZE(psbt_output_deserialize, {
PSBTOutput psbt_output;
DeserializeFromFuzzingInput(buffer, psbt_output);
})
FUZZ_TARGET_DESERIALIZE(block_deserialize, {
CBlock block;
DeserializeFromFuzzingInput(buffer, block);
})
FUZZ_TARGET_DESERIALIZE(blocklocator_deserialize, {
CBlockLocator bl;
DeserializeFromFuzzingInput(buffer, bl);
})
FUZZ_TARGET_DESERIALIZE(blockmerkleroot, {
CBlock block;
DeserializeFromFuzzingInput(buffer, block);
bool mutated;
BlockMerkleRoot(block, &mutated);
})
FUZZ_TARGET_DESERIALIZE(addrman_deserialize, {
CAddrMan am(/* deterministic */ false, /* consistency_check_ratio */ 0);
DeserializeFromFuzzingInput(buffer, am);
})
FUZZ_TARGET_DESERIALIZE(blockheader_deserialize, {
CBlockHeader bh;
DeserializeFromFuzzingInput(buffer, bh);
})
FUZZ_TARGET_DESERIALIZE(banentry_deserialize, {
CBanEntry be;
DeserializeFromFuzzingInput(buffer, be);
})
FUZZ_TARGET_DESERIALIZE(txundo_deserialize, {
CTxUndo tu;
DeserializeFromFuzzingInput(buffer, tu);
})
FUZZ_TARGET_DESERIALIZE(blockundo_deserialize, {
CBlockUndo bu;
DeserializeFromFuzzingInput(buffer, bu);
})
FUZZ_TARGET_DESERIALIZE(coins_deserialize, {
Coin coin;
DeserializeFromFuzzingInput(buffer, coin);
})
FUZZ_TARGET_DESERIALIZE(netaddr_deserialize, {
CNetAddr na;
DeserializeFromFuzzingInput(buffer, na);
if (na.IsAddrV1Compatible()) {
AssertEqualAfterSerializeDeserialize(na);
}
AssertEqualAfterSerializeDeserialize(na, INIT_PROTO_VERSION | ADDRV2_FORMAT);
})
FUZZ_TARGET_DESERIALIZE(service_deserialize, {
CService s;
DeserializeFromFuzzingInput(buffer, s);
if (s.IsAddrV1Compatible()) {
AssertEqualAfterSerializeDeserialize(s);
}
AssertEqualAfterSerializeDeserialize(s, INIT_PROTO_VERSION | ADDRV2_FORMAT);
CService s1;
DeserializeFromFuzzingInput(buffer, s1, INIT_PROTO_VERSION);
AssertEqualAfterSerializeDeserialize(s1, INIT_PROTO_VERSION);
assert(s1.IsAddrV1Compatible());
CService s2;
DeserializeFromFuzzingInput(buffer, s2, INIT_PROTO_VERSION | ADDRV2_FORMAT);
AssertEqualAfterSerializeDeserialize(s2, INIT_PROTO_VERSION | ADDRV2_FORMAT);
})
FUZZ_TARGET_DESERIALIZE(messageheader_deserialize, {
CMessageHeader mh;
DeserializeFromFuzzingInput(buffer, mh);
(void)mh.IsCommandValid();
})
FUZZ_TARGET_DESERIALIZE(address_deserialize_v1_notime, {
CAddress a;
DeserializeFromFuzzingInput(buffer, a, INIT_PROTO_VERSION);
// A CAddress without nTime (as is expected under INIT_PROTO_VERSION) will roundtrip
// in all 5 formats (with/without nTime, v1/v2, network/disk)
AssertEqualAfterSerializeDeserialize(a, INIT_PROTO_VERSION);
AssertEqualAfterSerializeDeserialize(a, PROTOCOL_VERSION);
AssertEqualAfterSerializeDeserialize(a, 0, SER_DISK);
AssertEqualAfterSerializeDeserialize(a, PROTOCOL_VERSION | ADDRV2_FORMAT);
AssertEqualAfterSerializeDeserialize(a, ADDRV2_FORMAT, SER_DISK);
})
FUZZ_TARGET_DESERIALIZE(address_deserialize_v1_withtime, {
CAddress a;
DeserializeFromFuzzingInput(buffer, a, PROTOCOL_VERSION);
// A CAddress in V1 mode will roundtrip in all 4 formats that have nTime.
AssertEqualAfterSerializeDeserialize(a, PROTOCOL_VERSION);
AssertEqualAfterSerializeDeserialize(a, 0, SER_DISK);
AssertEqualAfterSerializeDeserialize(a, PROTOCOL_VERSION | ADDRV2_FORMAT);
AssertEqualAfterSerializeDeserialize(a, ADDRV2_FORMAT, SER_DISK);
})
FUZZ_TARGET_DESERIALIZE(address_deserialize_v2, {
CAddress a;
DeserializeFromFuzzingInput(buffer, a, PROTOCOL_VERSION | ADDRV2_FORMAT);
// A CAddress in V2 mode will roundtrip in both V2 formats, and also in the V1 formats
// with time if it's V1 compatible.
if (a.IsAddrV1Compatible()) {
AssertEqualAfterSerializeDeserialize(a, PROTOCOL_VERSION);
AssertEqualAfterSerializeDeserialize(a, 0, SER_DISK);
}
AssertEqualAfterSerializeDeserialize(a, PROTOCOL_VERSION | ADDRV2_FORMAT);
AssertEqualAfterSerializeDeserialize(a, ADDRV2_FORMAT, SER_DISK);
})
FUZZ_TARGET_DESERIALIZE(inv_deserialize, {
CInv i;
DeserializeFromFuzzingInput(buffer, i);
})
FUZZ_TARGET_DESERIALIZE(bloomfilter_deserialize, {
CBloomFilter bf;
DeserializeFromFuzzingInput(buffer, bf);
})
FUZZ_TARGET_DESERIALIZE(diskblockindex_deserialize, {
CDiskBlockIndex dbi;
DeserializeFromFuzzingInput(buffer, dbi);
})
FUZZ_TARGET_DESERIALIZE(txoutcompressor_deserialize, {
CTxOut to;
auto toc = Using<TxOutCompression>(to);
DeserializeFromFuzzingInput(buffer, toc);
})
FUZZ_TARGET_DESERIALIZE(blocktransactions_deserialize, {
BlockTransactions bt;
DeserializeFromFuzzingInput(buffer, bt);
})
FUZZ_TARGET_DESERIALIZE(blocktransactionsrequest_deserialize, {
BlockTransactionsRequest btr;
DeserializeFromFuzzingInput(buffer, btr);
})
FUZZ_TARGET_DESERIALIZE(snapshotmetadata_deserialize, {
SnapshotMetadata snapshot_metadata;
DeserializeFromFuzzingInput(buffer, snapshot_metadata);
})
FUZZ_TARGET_DESERIALIZE(uint160_deserialize, {
uint160 u160;
DeserializeFromFuzzingInput(buffer, u160);
AssertEqualAfterSerializeDeserialize(u160);
})
FUZZ_TARGET_DESERIALIZE(uint256_deserialize, {
uint256 u256;
DeserializeFromFuzzingInput(buffer, u256);
AssertEqualAfterSerializeDeserialize(u256);
})
// Classes intentionally not covered in this file since their deserialization code is
// fuzzed elsewhere:
// * Deserialization of CTxOut is fuzzed in test/fuzz/tx_out.cpp
// * Deserialization of CMutableTransaction is fuzzed in src/test/fuzz/transaction.cpp
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