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tests: Add fuzzing harness for DecodeHexTx(...)

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This commit is contained in:
practicalswift 2019-12-19 19:26:42 +00:00
parent 3e94938072
commit bcad0144ef
3 changed files with 39 additions and 0 deletions
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7
src/Makefile.test.include
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@ -23,6 +23,7 @@ FUZZ_TARGETS = \
test/fuzz/blockundo_deserialize \
test/fuzz/bloomfilter_deserialize \
test/fuzz/coins_deserialize \
test/fuzz/decode_tx \
test/fuzz/descriptor_parse \
test/fuzz/diskblockindex_deserialize \
test/fuzz/eval_script \
@ -304,6 +305,12 @@ test_fuzz_coins_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_coins_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_coins_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_decode_tx_SOURCES = $(FUZZ_SUITE) test/fuzz/decode_tx.cpp
test_fuzz_decode_tx_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_decode_tx_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_decode_tx_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_decode_tx_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_descriptor_parse_SOURCES = $(FUZZ_SUITE) test/fuzz/descriptor_parse.cpp
test_fuzz_descriptor_parse_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_descriptor_parse_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)

31
src/test/fuzz/decode_tx.cpp Normal file
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@ -0,0 +1,31 @@
// Copyright (c) 2019 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 <core_io.h>
#include <primitives/transaction.h>
#include <test/fuzz/fuzz.h>
#include <util/strencodings.h>
#include <cassert>
#include <cstdint>
#include <string>
#include <vector>
void test_one_input(const std::vector<uint8_t>& buffer)
{
const std::string tx_hex = HexStr(std::string{buffer.begin(), buffer.end()});
CMutableTransaction mtx;
const bool result_none = DecodeHexTx(mtx, tx_hex, false, false);
const bool result_try_witness = DecodeHexTx(mtx, tx_hex, false, true);
const bool result_try_witness_and_maybe_no_witness = DecodeHexTx(mtx, tx_hex, true, true);
const bool result_try_no_witness = DecodeHexTx(mtx, tx_hex, true, false);
assert(!result_none);
if (result_try_witness_and_maybe_no_witness) {
assert(result_try_no_witness || result_try_witness);
}
// if (result_try_no_witness) { // Uncomment when https://github.com/bitcoin/bitcoin/pull/17775 is merged
if (result_try_witness) { // Remove stop-gap when https://github.com/bitcoin/bitcoin/pull/17775 is merged
assert(result_try_witness_and_maybe_no_witness);
}
}

1
test/fuzz/test_runner.py
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@ -20,6 +20,7 @@ FUZZERS_MISSING_CORPORA = [
"block_file_info_deserialize",
"block_filter_deserialize",
"block_header_and_short_txids_deserialize",
"decode_tx",
"fee_rate_deserialize",
"flat_file_pos_deserialize",
"hex",