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// Copyright (c) 2009-2020 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 <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 <optional.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 <stdexcept>
#include <stdint.h>
#include <unistd.h>
#include <vector>
#include <test/fuzz/fuzz.h>
void initialize()
{
// Fuzzers using pubkey must hold an ECCVerifyHandle.
static const ECCVerifyHandle verify_handle;
}
namespace {
struct invalid_fuzzing_input_exception : public std::exception {
};
template <typename T>
CDataStream Serialize(const T& obj, const int version = INIT_PROTO_VERSION)
{
CDataStream ds(SER_NETWORK, version);
ds << obj;
return ds;
}
template <typename T>
T Deserialize(CDataStream ds)
{
T obj;
ds >> obj;
return obj;
}
template <typename T>
void DeserializeFromFuzzingInput(const std::vector<uint8_t>& buffer, T& obj, const Optional<int> protocol_version = nullopt)
{
CDataStream ds(buffer, SER_NETWORK, 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)
{
assert(Deserialize<T>(Serialize(obj, version)) == obj);
}
} // namespace
void test_one_input(const std::vector<uint8_t>& buffer)
{
try {
#if BLOCK_FILTER_DESERIALIZE
BlockFilter block_filter;
DeserializeFromFuzzingInput(buffer, block_filter);
#elif ADDR_INFO_DESERIALIZE
CAddrInfo addr_info;
DeserializeFromFuzzingInput(buffer, addr_info);
#elif BLOCK_FILE_INFO_DESERIALIZE
CBlockFileInfo block_file_info;
DeserializeFromFuzzingInput(buffer, block_file_info);
#elif BLOCK_HEADER_AND_SHORT_TXIDS_DESERIALIZE
CBlockHeaderAndShortTxIDs block_header_and_short_txids;
DeserializeFromFuzzingInput(buffer, block_header_and_short_txids);
#elif FEE_RATE_DESERIALIZE
CFeeRate fee_rate;
DeserializeFromFuzzingInput(buffer, fee_rate);
AssertEqualAfterSerializeDeserialize(fee_rate);
#elif MERKLE_BLOCK_DESERIALIZE
CMerkleBlock merkle_block;
DeserializeFromFuzzingInput(buffer, merkle_block);
#elif OUT_POINT_DESERIALIZE
COutPoint out_point;
DeserializeFromFuzzingInput(buffer, out_point);
AssertEqualAfterSerializeDeserialize(out_point);
#elif PARTIAL_MERKLE_TREE_DESERIALIZE
CPartialMerkleTree partial_merkle_tree;
DeserializeFromFuzzingInput(buffer, partial_merkle_tree);
#elif PUB_KEY_DESERIALIZE
CPubKey pub_key;
DeserializeFromFuzzingInput(buffer, pub_key);
// TODO: The following equivalence should hold for CPubKey? Fix.
// AssertEqualAfterSerializeDeserialize(pub_key);
#elif SCRIPT_DESERIALIZE
CScript script;
DeserializeFromFuzzingInput(buffer, script);
#elif SUB_NET_DESERIALIZE
CSubNet sub_net_1;
DeserializeFromFuzzingInput(buffer, sub_net_1, INIT_PROTO_VERSION);
AssertEqualAfterSerializeDeserialize(sub_net_1, INIT_PROTO_VERSION);
CSubNet sub_net_2;
DeserializeFromFuzzingInput(buffer, sub_net_2, INIT_PROTO_VERSION | ADDRV2_FORMAT);
AssertEqualAfterSerializeDeserialize(sub_net_2, INIT_PROTO_VERSION | ADDRV2_FORMAT);
CSubNet sub_net_3;
DeserializeFromFuzzingInput(buffer, sub_net_3);
AssertEqualAfterSerializeDeserialize(sub_net_3, INIT_PROTO_VERSION | ADDRV2_FORMAT);
#elif TX_IN_DESERIALIZE
CTxIn tx_in;
DeserializeFromFuzzingInput(buffer, tx_in);
AssertEqualAfterSerializeDeserialize(tx_in);
#elif FLAT_FILE_POS_DESERIALIZE
FlatFilePos flat_file_pos;
DeserializeFromFuzzingInput(buffer, flat_file_pos);
AssertEqualAfterSerializeDeserialize(flat_file_pos);
#elif KEY_ORIGIN_INFO_DESERIALIZE
KeyOriginInfo key_origin_info;
DeserializeFromFuzzingInput(buffer, key_origin_info);
AssertEqualAfterSerializeDeserialize(key_origin_info);
#elif PARTIALLY_SIGNED_TRANSACTION_DESERIALIZE
PartiallySignedTransaction partially_signed_transaction;
DeserializeFromFuzzingInput(buffer, partially_signed_transaction);
#elif PREFILLED_TRANSACTION_DESERIALIZE
PrefilledTransaction prefilled_transaction;
DeserializeFromFuzzingInput(buffer, prefilled_transaction);
#elif PSBT_INPUT_DESERIALIZE
PSBTInput psbt_input;
DeserializeFromFuzzingInput(buffer, psbt_input);
#elif PSBT_OUTPUT_DESERIALIZE
PSBTOutput psbt_output;
DeserializeFromFuzzingInput(buffer, psbt_output);
#elif BLOCK_DESERIALIZE
CBlock block;
DeserializeFromFuzzingInput(buffer, block);
#elif BLOCKLOCATOR_DESERIALIZE
CBlockLocator bl;
DeserializeFromFuzzingInput(buffer, bl);
#elif BLOCKMERKLEROOT
CBlock block;
DeserializeFromFuzzingInput(buffer, block);
bool mutated;
BlockMerkleRoot(block, &mutated);
#elif ADDRMAN_DESERIALIZE
CAddrMan am;
DeserializeFromFuzzingInput(buffer, am);
#elif BLOCKHEADER_DESERIALIZE
CBlockHeader bh;
DeserializeFromFuzzingInput(buffer, bh);
#elif BANENTRY_DESERIALIZE
CBanEntry be;
DeserializeFromFuzzingInput(buffer, be);
#elif TXUNDO_DESERIALIZE
CTxUndo tu;
DeserializeFromFuzzingInput(buffer, tu);
#elif BLOCKUNDO_DESERIALIZE
CBlockUndo bu;
DeserializeFromFuzzingInput(buffer, bu);
#elif COINS_DESERIALIZE
Coin coin;
DeserializeFromFuzzingInput(buffer, coin);
#elif NETADDR_DESERIALIZE
CNetAddr na;
DeserializeFromFuzzingInput(buffer, na);
if (na.IsAddrV1Compatible()) {
AssertEqualAfterSerializeDeserialize(na);
}
AssertEqualAfterSerializeDeserialize(na, INIT_PROTO_VERSION | ADDRV2_FORMAT);
#elif 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);
#elif MESSAGEHEADER_DESERIALIZE
CMessageHeader mh;
DeserializeFromFuzzingInput(buffer, mh);
(void)mh.IsCommandValid();
#elif ADDRESS_DESERIALIZE
CAddress a;
DeserializeFromFuzzingInput(buffer, a);
#elif INV_DESERIALIZE
CInv i;
DeserializeFromFuzzingInput(buffer, i);
#elif BLOOMFILTER_DESERIALIZE
CBloomFilter bf;
DeserializeFromFuzzingInput(buffer, bf);
#elif DISKBLOCKINDEX_DESERIALIZE
CDiskBlockIndex dbi;
DeserializeFromFuzzingInput(buffer, dbi);
#elif TXOUTCOMPRESSOR_DESERIALIZE
CTxOut to;
auto toc = Using<TxOutCompression>(to);
DeserializeFromFuzzingInput(buffer, toc);
#elif BLOCKTRANSACTIONS_DESERIALIZE
BlockTransactions bt;
DeserializeFromFuzzingInput(buffer, bt);
#elif BLOCKTRANSACTIONSREQUEST_DESERIALIZE
BlockTransactionsRequest btr;
DeserializeFromFuzzingInput(buffer, btr);
#elif SNAPSHOTMETADATA_DESERIALIZE
SnapshotMetadata snapshot_metadata;
DeserializeFromFuzzingInput(buffer, snapshot_metadata);
#elif UINT160_DESERIALIZE
uint160 u160;
DeserializeFromFuzzingInput(buffer, u160);
AssertEqualAfterSerializeDeserialize(u160);
#elif UINT256_DESERIALIZE
uint256 u256;
DeserializeFromFuzzingInput(buffer, u256);
AssertEqualAfterSerializeDeserialize(u256);
#else
#error Need at least one fuzz target to compile
#endif
// 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
} catch (const invalid_fuzzing_input_exception&) {
}
}
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