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Merge #18445: tests: Add fuzzing harnesses for functions/classes in chain.h and protocol.h

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7834c3b9ec tests: Add fuzzing harness for functions/classes in chain.h (practicalswift)
d7930c4326 tests: Add fuzzing harness for functions/classes in protocol.h (practicalswift)

Pull request description:

  Add fuzzing harnesses for functions/classes in `chain.h` and `protocol.h`.

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Tree-SHA512: ac2d66bc678ebba0ffbbc42e77806eaf3bb07413ff19219c7a83b171ccd4601e0aa8546ee7ffe8018ca4de12d080f79f693d184cc337c234cde641803279f00c
This commit is contained in:
MarcoFalke 2020-03-26 20:37:40 -04:00
parent 0dc6218c79 7834c3b9ec
commit e3154aacf4
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GPG key ID: CE2B75697E69A548
3 changed files with 111 additions and 0 deletions
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14
src/Makefile.test.include
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@ -26,6 +26,7 @@ FUZZ_TARGETS = \
test/fuzz/blockundo_deserialize \
test/fuzz/bloom_filter \
test/fuzz/bloomfilter_deserialize \
test/fuzz/chain \
test/fuzz/coins_deserialize \
test/fuzz/decode_tx \
test/fuzz/descriptor_parse \
@ -83,6 +84,7 @@ FUZZ_TARGETS = \
test/fuzz/process_message_tx \
test/fuzz/process_message_verack \
test/fuzz/process_message_version \
test/fuzz/protocol \
test/fuzz/psbt \
test/fuzz/psbt_input_deserialize \
test/fuzz/psbt_output_deserialize \
@ -424,6 +426,12 @@ test_fuzz_bloomfilter_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_bloomfilter_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_bloomfilter_deserialize_SOURCES = $(FUZZ_SUITE) test/fuzz/deserialize.cpp
test_fuzz_chain_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_chain_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_chain_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_chain_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_chain_SOURCES = $(FUZZ_SUITE) test/fuzz/chain.cpp
test_fuzz_coins_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DCOINS_DESERIALIZE=1
test_fuzz_coins_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_coins_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
@ -766,6 +774,12 @@ test_fuzz_process_message_version_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_process_message_version_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_process_message_version_SOURCES = $(FUZZ_SUITE) test/fuzz/process_message.cpp
test_fuzz_protocol_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_protocol_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_protocol_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_protocol_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_protocol_SOURCES = $(FUZZ_SUITE) test/fuzz/protocol.cpp
test_fuzz_psbt_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_psbt_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_psbt_LDADD = $(FUZZ_SUITE_LD_COMMON)

65
src/test/fuzz/chain.cpp Normal file
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@ -0,0 +1,65 @@
// 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 <chain.h>
#include <optional.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <cstdint>
#include <vector>
void test_one_input(const std::vector<uint8_t>& buffer)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
Optional<CDiskBlockIndex> disk_block_index = ConsumeDeserializable<CDiskBlockIndex>(fuzzed_data_provider);
if (!disk_block_index) {
return;
}
const uint256 zero{};
disk_block_index->phashBlock = &zero;
(void)disk_block_index->GetBlockHash();
(void)disk_block_index->GetBlockPos();
(void)disk_block_index->GetBlockTime();
(void)disk_block_index->GetBlockTimeMax();
(void)disk_block_index->GetMedianTimePast();
(void)disk_block_index->GetUndoPos();
(void)disk_block_index->HaveTxsDownloaded();
(void)disk_block_index->IsValid();
(void)disk_block_index->ToString();
const CBlockHeader block_header = disk_block_index->GetBlockHeader();
(void)CDiskBlockIndex{*disk_block_index};
(void)disk_block_index->BuildSkip();
while (fuzzed_data_provider.ConsumeBool()) {
const BlockStatus block_status = fuzzed_data_provider.PickValueInArray({
BlockStatus::BLOCK_VALID_UNKNOWN,
BlockStatus::BLOCK_VALID_RESERVED,
BlockStatus::BLOCK_VALID_TREE,
BlockStatus::BLOCK_VALID_TRANSACTIONS,
BlockStatus::BLOCK_VALID_CHAIN,
BlockStatus::BLOCK_VALID_SCRIPTS,
BlockStatus::BLOCK_VALID_MASK,
BlockStatus::BLOCK_HAVE_DATA,
BlockStatus::BLOCK_HAVE_UNDO,
BlockStatus::BLOCK_HAVE_MASK,
BlockStatus::BLOCK_FAILED_VALID,
BlockStatus::BLOCK_FAILED_CHILD,
BlockStatus::BLOCK_FAILED_MASK,
BlockStatus::BLOCK_OPT_WITNESS,
});
if (block_status & ~BLOCK_VALID_MASK) {
continue;
}
(void)disk_block_index->RaiseValidity(block_status);
}
CBlockIndex block_index{block_header};
block_index.phashBlock = &zero;
(void)block_index.GetBlockHash();
(void)block_index.ToString();
}

32
src/test/fuzz/protocol.cpp Normal file
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@ -0,0 +1,32 @@
// 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 <protocol.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <cstdint>
#include <stdexcept>
#include <vector>
void test_one_input(const std::vector<uint8_t>& buffer)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
const Optional<CInv> inv = ConsumeDeserializable<CInv>(fuzzed_data_provider);
if (!inv) {
return;
}
try {
(void)inv->GetCommand();
} catch (const std::out_of_range&) {
}
(void)inv->ToString();
const Optional<CInv> another_inv = ConsumeDeserializable<CInv>(fuzzed_data_provider);
if (!another_inv) {
return;
}
(void)(*inv < *another_inv);
}