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merge bitcoin#17229: Add fuzzing harnesses for various Base{32,58,64} and hex related functions

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This commit is contained in:
Kittywhiskers Van Gogh 2022-02-27 22:27:33 +05:30
parent 27d70d2fdf
commit 933efc36fc
5 changed files with 86 additions and 10 deletions
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14
src/Makefile.test.include
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@ -9,6 +9,7 @@ FUZZ_TARGETS = \
test/fuzz/address_deserialize \
test/fuzz/addrman_deserialize \
test/fuzz/banentry_deserialize \
test/fuzz/base_encode_decode \
test/fuzz/bech32 \
test/fuzz/block \
test/fuzz/block_deserialize \
@ -28,6 +29,7 @@ FUZZ_TARGETS = \
test/fuzz/eval_script \
test/fuzz/fee_rate_deserialize \
test/fuzz/flat_file_pos_deserialize \
test/fuzz/hex \
test/fuzz/integer \
test/fuzz/inv_deserialize \
test/fuzz/key_origin_info_deserialize \
@ -297,6 +299,12 @@ test_fuzz_bech32_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_bech32_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) $(LDFLAGS_WRAP_EXCEPTIONS)
test_fuzz_bech32_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_base_encode_decode_SOURCES = $(FUZZ_SUITE) test/fuzz/base_encode_decode.cpp
test_fuzz_base_encode_decode_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_base_encode_decode_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_base_encode_decode_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) $(LDFLAGS_WRAP_EXCEPTIONS)
test_fuzz_base_encode_decode_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_txundo_deserialize_SOURCES = $(FUZZ_SUITE) test/fuzz/deserialize.cpp
test_fuzz_txundo_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DTXUNDO_DESERIALIZE=1
test_fuzz_txundo_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
@ -363,6 +371,12 @@ test_fuzz_address_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_address_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) $(LDFLAGS_WRAP_EXCEPTIONS)
test_fuzz_address_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_hex_SOURCES = $(FUZZ_SUITE) test/fuzz/hex.cpp
test_fuzz_hex_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_hex_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_hex_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) $(LDFLAGS_WRAP_EXCEPTIONS)
test_fuzz_hex_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_inv_deserialize_SOURCES = $(FUZZ_SUITE) test/fuzz/deserialize.cpp
test_fuzz_inv_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DINV_DESERIALIZE=1
test_fuzz_inv_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)

47
src/test/fuzz/base_encode_decode.cpp Normal file
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@ -0,0 +1,47 @@
// 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 <test/fuzz/fuzz.h>
#include <base58.h>
#include <util/string.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 random_encoded_string(buffer.begin(), buffer.end());
std::vector<unsigned char> decoded;
if (DecodeBase58(random_encoded_string, decoded)) {
const std::string encoded_string = EncodeBase58(decoded);
assert(encoded_string == TrimString(encoded_string));
assert(ToLower(encoded_string) == ToLower(TrimString(random_encoded_string)));
}
if (DecodeBase58Check(random_encoded_string, decoded)) {
const std::string encoded_string = EncodeBase58Check(decoded);
assert(encoded_string == TrimString(encoded_string));
assert(ToLower(encoded_string) == ToLower(TrimString(random_encoded_string)));
}
bool pf_invalid;
std::string decoded_string = DecodeBase32(random_encoded_string, &pf_invalid);
if (!pf_invalid) {
const std::string encoded_string = EncodeBase32(decoded_string);
assert(encoded_string == TrimString(encoded_string));
assert(ToLower(encoded_string) == ToLower(TrimString(random_encoded_string)));
}
decoded_string = DecodeBase64(random_encoded_string, &pf_invalid);
if (!pf_invalid) {
const std::string encoded_string = EncodeBase64(decoded_string);
assert(encoded_string == TrimString(encoded_string));
assert(ToLower(encoded_string) == ToLower(TrimString(random_encoded_string)));
}
}

22
src/test/fuzz/hex.cpp Normal file
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@ -0,0 +1,22 @@
// 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 <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 random_hex_string(buffer.begin(), buffer.end());
const std::vector<unsigned char> data = ParseHex(random_hex_string);
const std::string hex_data = HexStr(data);
if (IsHex(random_hex_string)) {
assert(ToLower(random_hex_string) == hex_data);
}
}

11
src/util/system.cpp
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@ -12,6 +12,7 @@
#include <stacktraces.h>
#include <util/getuniquepath.h>
#include <util/strencodings.h>
#include <util/string.h>
#if (defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__))
@ -843,16 +844,6 @@ fs::path GetConfigFile(const std::string& confPath)
return AbsPathForConfigVal(fs::path(confPath), false);
}
static std::string TrimString(const std::string& str, const std::string& pattern)
{
std::string::size_type front = str.find_first_not_of(pattern);
if (front == std::string::npos) {
return std::string();
}
std::string::size_type end = str.find_last_not_of(pattern);
return str.substr(front, end - front + 1);
}
static bool GetConfigOptions(std::istream& stream, const std::string& filepath, std::string& error, std::vector<std::pair<std::string, std::string>>& options, std::list<SectionInfo>& sections)
{
std::string str, prefix;

2
test/fuzz/test_runner.py
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@ -15,12 +15,14 @@ import logging
# Fuzzers known to lack a seed corpus in https://github.com/bitcoin-core/qa-assets/tree/master/fuzz_seed_corpus
FUZZERS_MISSING_CORPORA = [
"addr_info_deserialize",
"base_encode_decode",
"block",
"block_file_info_deserialize",
"block_filter_deserialize",
"block_header_and_short_txids_deserialize",
"fee_rate_deserialize",
"flat_file_pos_deserialize",
"hex",
"integer",
"key_origin_info_deserialize",
"locale",