Branch data Line data Source code
1 : : // Copyright (c) 2009-2021 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 <blockencodings.h>
9 : : #include <blockfilter.h>
10 : : #include <chain.h>
11 : : #include <coins.h>
12 : : #include <common/args.h>
13 : : #include <compressor.h>
14 : : #include <consensus/merkle.h>
15 : : #include <key.h>
16 : : #include <merkleblock.h>
17 [ + - ]: 2 : #include <net.h>
18 [ + - ]: 2 : #include <netbase.h>
19 : : #include <netgroup.h>
20 : : #include <node/utxo_snapshot.h>
21 : : #include <primitives/block.h>
22 : : #include <protocol.h>
23 : : #include <psbt.h>
24 : : #include <pubkey.h>
25 : : #include <script/keyorigin.h>
26 : : #include <streams.h>
27 : 2 : #include <test/fuzz/fuzz.h>
28 : : #include <test/fuzz/util.h>
29 : : #include <test/util/setup_common.h>
30 : : #include <undo.h>
31 : : #include <version.h>
32 : :
33 : : #include <exception>
34 : : #include <optional>
35 : : #include <stdexcept>
36 : : #include <stdint.h>
37 : : #include <unistd.h>
38 : :
39 : : using node::SnapshotMetadata;
40 : :
41 : : namespace {
42 : : const BasicTestingSetup* g_setup;
43 : : } // namespace
44 : :
45 : 0 : void initialize_deserialize()
46 : : {
47 [ # # ][ # # ]: 0 : static const auto testing_setup = MakeNoLogFileContext<>();
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48 : 0 : g_setup = testing_setup.get();
49 : 0 : }
50 : 2 :
51 : : #define FUZZ_TARGET_DESERIALIZE(name, code) \
52 : : FUZZ_TARGET(name, .init = initialize_deserialize) \
53 : : { \
54 : : try { \
55 : : code \
56 : : } catch (const invalid_fuzzing_input_exception&) { \
57 : : } \
58 : : }
59 : :
60 : : namespace {
61 : :
62 : 0 : struct invalid_fuzzing_input_exception : public std::exception {
63 : : };
64 : :
65 : : template <typename T, typename P>
66 : 0 : DataStream Serialize(const T& obj, const P& params)
67 : : {
68 : 0 : DataStream ds{};
69 [ # # ][ # # ]: 0 : ds << params(obj);
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70 : 0 : return ds;
71 [ # # ][ # # ]: 0 : }
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72 : :
73 : : template <typename T, typename P>
74 : 0 : T Deserialize(DataStream&& ds, const P& params)
75 : : {
76 : 0 : T obj;
77 [ # # ][ # # ]: 0 : ds >> params(obj);
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78 : 0 : return obj;
79 [ # # ][ # # ]: 0 : }
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80 : :
81 : : template <typename T, typename P>
82 : : void DeserializeFromFuzzingInput(FuzzBufferType buffer, T&& obj, const P& params)
83 [ + - ]: 2 : {
84 : : DataStream ds{buffer};
85 : : try {
86 : : ds >> params(obj);
87 : : } catch (const std::ios_base::failure&) {
88 : : throw invalid_fuzzing_input_exception();
89 : : }
90 : : assert(buffer.empty() || !Serialize(obj, params).empty());
91 : : }
92 : :
93 : : template <typename T>
94 : 0 : CDataStream Serialize(const T& obj)
95 : : {
96 : 0 : CDataStream ds{SER_NETWORK, INIT_PROTO_VERSION};
97 [ # # ][ # # ]: 0 : ds << obj;
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98 : 0 : return ds;
99 [ # # ][ # # ]: 0 : }
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100 : :
101 : : template <typename T>
102 : 0 : T Deserialize(CDataStream ds)
103 : : {
104 : 0 : T obj;
105 [ # # ][ # # ]: 0 : ds >> obj;
106 : 0 : return obj;
107 [ # # ][ # # ]: 0 : }
108 : :
109 : : template <typename T>
110 : 0 : void DeserializeFromFuzzingInput(FuzzBufferType buffer, T&& obj)
111 : : {
112 : 0 : CDataStream ds{buffer, SER_NETWORK, INIT_PROTO_VERSION};
113 : : {
114 : : try {
115 : : int version;
116 [ # # ][ # # ]: 0 : ds >> version;
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117 [ # # ]: 0 : ds.SetVersion(version);
118 [ # # ][ # # ]: 0 : } catch (const std::ios_base::failure&) {
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119 : 0 : throw invalid_fuzzing_input_exception();
120 [ # # ][ # # ]: 0 : }
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121 : : }
122 : : try {
123 [ # # ][ # # ]: 0 : ds >> obj;
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124 [ # # ][ # # ]: 0 : } catch (const std::ios_base::failure&) {
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125 : 0 : throw invalid_fuzzing_input_exception();
126 [ # # ][ # # ]: 0 : }
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127 [ # # ][ # # ]: 0 : assert(buffer.empty() || !Serialize(obj).empty());
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128 : 0 : }
129 : :
130 : : template <typename T, typename P>
131 : 0 : void AssertEqualAfterSerializeDeserialize(const T& obj, const P& params)
132 : : {
133 [ # # ][ # # ]: 0 : assert(Deserialize<T>(Serialize(obj, params), params) == obj);
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134 : 0 : }
135 : : template <typename T>
136 : 0 : void AssertEqualAfterSerializeDeserialize(const T& obj)
137 : : {
138 [ # # ][ # # ]: 0 : assert(Deserialize<T>(Serialize(obj)) == obj);
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139 : 0 : }
140 : :
141 : : } // namespace
142 : :
143 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(block_filter_deserialize, {
[ # # ][ # # ]
144 : : BlockFilter block_filter;
145 : : DeserializeFromFuzzingInput(buffer, block_filter);
146 : : })
147 [ + - ]: 4 : FUZZ_TARGET(addr_info_deserialize, .init = initialize_deserialize)
148 : : {
149 : 0 : FuzzedDataProvider fdp{buffer.data(), buffer.size()};
150 : 0 : (void)ConsumeDeserializable<AddrInfo>(fdp, ConsumeDeserializationParams<CAddress::SerParams>(fdp));
151 : 0 : }
152 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(block_file_info_deserialize, {
[ # # ][ # # ]
153 : : CBlockFileInfo block_file_info;
154 : : DeserializeFromFuzzingInput(buffer, block_file_info);
155 : : })
156 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(block_header_and_short_txids_deserialize, {
[ # # ][ # # ]
157 : : CBlockHeaderAndShortTxIDs block_header_and_short_txids;
158 : : DeserializeFromFuzzingInput(buffer, block_header_and_short_txids);
159 : : })
160 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(fee_rate_deserialize, {
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161 : : CFeeRate fee_rate;
162 : : DeserializeFromFuzzingInput(buffer, fee_rate);
163 : : AssertEqualAfterSerializeDeserialize(fee_rate);
164 : : })
165 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(merkle_block_deserialize, {
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166 : : CMerkleBlock merkle_block;
167 : : DeserializeFromFuzzingInput(buffer, merkle_block);
168 : : })
169 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(out_point_deserialize, {
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170 : : COutPoint out_point;
171 : : DeserializeFromFuzzingInput(buffer, out_point);
172 : : AssertEqualAfterSerializeDeserialize(out_point);
173 : : })
174 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(partial_merkle_tree_deserialize, {
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175 : : CPartialMerkleTree partial_merkle_tree;
176 : : DeserializeFromFuzzingInput(buffer, partial_merkle_tree);
177 : : })
178 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(pub_key_deserialize, {
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179 : : CPubKey pub_key;
180 : : DeserializeFromFuzzingInput(buffer, pub_key);
181 : : AssertEqualAfterSerializeDeserialize(pub_key);
182 : : })
183 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(script_deserialize, {
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184 : : CScript script;
185 : : DeserializeFromFuzzingInput(buffer, script);
186 : : })
187 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(tx_in_deserialize, {
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188 : : CTxIn tx_in;
189 : : DeserializeFromFuzzingInput(buffer, tx_in);
190 : : AssertEqualAfterSerializeDeserialize(tx_in);
191 : : })
192 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(flat_file_pos_deserialize, {
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193 : : FlatFilePos flat_file_pos;
194 : : DeserializeFromFuzzingInput(buffer, flat_file_pos);
195 : : AssertEqualAfterSerializeDeserialize(flat_file_pos);
196 : : })
197 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(key_origin_info_deserialize, {
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198 : : KeyOriginInfo key_origin_info;
199 : : DeserializeFromFuzzingInput(buffer, key_origin_info);
200 : : AssertEqualAfterSerializeDeserialize(key_origin_info);
201 : : })
202 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(partially_signed_transaction_deserialize, {
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203 : : PartiallySignedTransaction partially_signed_transaction;
204 : : DeserializeFromFuzzingInput(buffer, partially_signed_transaction);
205 : : })
206 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(prefilled_transaction_deserialize, {
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207 : : PrefilledTransaction prefilled_transaction;
208 : : DeserializeFromFuzzingInput(buffer, prefilled_transaction);
209 : : })
210 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(psbt_input_deserialize, {
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211 : : PSBTInput psbt_input;
212 : : DeserializeFromFuzzingInput(buffer, psbt_input);
213 : : })
214 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(psbt_output_deserialize, {
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215 : : PSBTOutput psbt_output;
216 : : DeserializeFromFuzzingInput(buffer, psbt_output);
217 : : })
218 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(block_deserialize, {
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219 : : CBlock block;
220 : : DeserializeFromFuzzingInput(buffer, block);
221 : : })
222 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(blocklocator_deserialize, {
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223 : : CBlockLocator bl;
224 : : DeserializeFromFuzzingInput(buffer, bl);
225 : : })
226 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(blockmerkleroot, {
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227 : : CBlock block;
228 : : DeserializeFromFuzzingInput(buffer, block);
229 : : bool mutated;
230 : : BlockMerkleRoot(block, &mutated);
231 : : })
232 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(blockheader_deserialize, {
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233 : : CBlockHeader bh;
234 : : DeserializeFromFuzzingInput(buffer, bh);
235 : : })
236 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(txundo_deserialize, {
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237 : : CTxUndo tu;
238 : : DeserializeFromFuzzingInput(buffer, tu);
239 : : })
240 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(blockundo_deserialize, {
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241 : : CBlockUndo bu;
242 : : DeserializeFromFuzzingInput(buffer, bu);
243 : : })
244 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(coins_deserialize, {
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245 : : Coin coin;
246 : : DeserializeFromFuzzingInput(buffer, coin);
247 : : })
248 [ + - ]: 4 : FUZZ_TARGET(netaddr_deserialize, .init = initialize_deserialize)
249 : : {
250 : 0 : FuzzedDataProvider fdp{buffer.data(), buffer.size()};
251 : 0 : const auto maybe_na{ConsumeDeserializable<CNetAddr>(fdp, ConsumeDeserializationParams<CNetAddr::SerParams>(fdp))};
252 [ # # ]: 0 : if (!maybe_na) return;
253 : 0 : const CNetAddr& na{*maybe_na};
254 [ # # ][ # # ]: 0 : if (na.IsAddrV1Compatible()) {
255 [ # # ]: 0 : AssertEqualAfterSerializeDeserialize(na, CNetAddr::V1);
256 : 0 : }
257 [ # # ]: 0 : AssertEqualAfterSerializeDeserialize(na, CNetAddr::V2);
258 [ # # ]: 0 : }
259 [ + - ]: 4 : FUZZ_TARGET(service_deserialize, .init = initialize_deserialize)
260 : : {
261 : 0 : FuzzedDataProvider fdp{buffer.data(), buffer.size()};
262 : 0 : const auto ser_params{ConsumeDeserializationParams<CNetAddr::SerParams>(fdp)};
263 : 0 : const auto maybe_s{ConsumeDeserializable<CService>(fdp, ser_params)};
264 [ # # ]: 0 : if (!maybe_s) return;
265 : 0 : const CService& s{*maybe_s};
266 [ # # ][ # # ]: 0 : if (s.IsAddrV1Compatible()) {
267 [ # # ]: 0 : AssertEqualAfterSerializeDeserialize(s, CNetAddr::V1);
268 : 0 : }
269 [ # # ]: 0 : AssertEqualAfterSerializeDeserialize(s, CNetAddr::V2);
270 [ # # ]: 0 : if (ser_params.enc == CNetAddr::Encoding::V1) {
271 [ # # ][ # # ]: 0 : assert(s.IsAddrV1Compatible());
272 : 0 : }
273 [ # # ]: 0 : }
274 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(messageheader_deserialize, {
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275 : : CMessageHeader mh;
276 : : DeserializeFromFuzzingInput(buffer, mh);
277 : : (void)mh.IsCommandValid();
278 : : })
279 [ + - ]: 4 : FUZZ_TARGET(address_deserialize, .init = initialize_deserialize)
280 : : {
281 : 0 : FuzzedDataProvider fdp{buffer.data(), buffer.size()};
282 : 0 : const auto ser_enc{ConsumeDeserializationParams<CAddress::SerParams>(fdp)};
283 : 0 : const auto maybe_a{ConsumeDeserializable<CAddress>(fdp, ser_enc)};
284 [ # # ]: 0 : if (!maybe_a) return;
285 : 0 : const CAddress& a{*maybe_a};
286 : : // A CAddress in V1 mode will roundtrip
287 : : // in all 4 formats (v1/v2, network/disk)
288 [ # # ]: 0 : if (ser_enc.enc == CNetAddr::Encoding::V1) {
289 [ # # ]: 0 : AssertEqualAfterSerializeDeserialize(a, CAddress::V1_NETWORK);
290 [ # # ]: 0 : AssertEqualAfterSerializeDeserialize(a, CAddress::V1_DISK);
291 [ # # ]: 0 : AssertEqualAfterSerializeDeserialize(a, CAddress::V2_NETWORK);
292 [ # # ]: 0 : AssertEqualAfterSerializeDeserialize(a, CAddress::V2_DISK);
293 : 0 : } else {
294 : : // A CAddress in V2 mode will roundtrip in both V2 formats, and also in the V1 formats
295 : : // if it's V1 compatible.
296 [ # # ][ # # ]: 0 : if (a.IsAddrV1Compatible()) {
297 [ # # ]: 0 : AssertEqualAfterSerializeDeserialize(a, CAddress::V1_DISK);
298 [ # # ]: 0 : AssertEqualAfterSerializeDeserialize(a, CAddress::V1_NETWORK);
299 : 0 : }
300 [ # # ]: 0 : AssertEqualAfterSerializeDeserialize(a, CAddress::V2_NETWORK);
301 [ # # ]: 0 : AssertEqualAfterSerializeDeserialize(a, CAddress::V2_DISK);
302 : : }
303 [ # # ]: 0 : }
304 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(inv_deserialize, {
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305 : : CInv i;
306 : : DeserializeFromFuzzingInput(buffer, i);
307 : : })
308 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(bloomfilter_deserialize, {
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309 : : CBloomFilter bf;
310 : : DeserializeFromFuzzingInput(buffer, bf);
311 : : })
312 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(diskblockindex_deserialize, {
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313 : : CDiskBlockIndex dbi;
314 : : DeserializeFromFuzzingInput(buffer, dbi);
315 : : })
316 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(txoutcompressor_deserialize, {
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317 : : CTxOut to;
318 : : auto toc = Using<TxOutCompression>(to);
319 : : DeserializeFromFuzzingInput(buffer, toc);
320 : : })
321 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(blocktransactions_deserialize, {
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322 : : BlockTransactions bt;
323 : : DeserializeFromFuzzingInput(buffer, bt);
324 : : })
325 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(blocktransactionsrequest_deserialize, {
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326 : : BlockTransactionsRequest btr;
327 : : DeserializeFromFuzzingInput(buffer, btr);
328 : : })
329 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(snapshotmetadata_deserialize, {
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330 : : SnapshotMetadata snapshot_metadata;
331 : : DeserializeFromFuzzingInput(buffer, snapshot_metadata);
332 : : })
333 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(uint160_deserialize, {
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334 : : uint160 u160;
335 : : DeserializeFromFuzzingInput(buffer, u160);
336 : : AssertEqualAfterSerializeDeserialize(u160);
337 : : })
338 [ + - ][ # # ]: 4 : FUZZ_TARGET_DESERIALIZE(uint256_deserialize, {
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339 : : uint256 u256;
340 : : DeserializeFromFuzzingInput(buffer, u256);
341 : : AssertEqualAfterSerializeDeserialize(u256);
342 : : })
343 : : // Classes intentionally not covered in this file since their deserialization code is
344 : : // fuzzed elsewhere:
345 : : // * Deserialization of CTxOut is fuzzed in test/fuzz/tx_out.cpp
346 : : // * Deserialization of CMutableTransaction is fuzzed in src/test/fuzz/transaction.cpp
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