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Add fuzz testing using american fuzzy lop

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Existing tests: block, transaction, signature, cold outputs,
cold transaction.

Data for these is in tests/data/fuzz.

A convenience shell script is in contrib/fuzz_testing/fuzz.sh, eg:

contrib/fuzz_testing/fuzz.sh signature

The fuzzer will run indefinitely, ^C to stop.

Fuzzing is currently supported for GCC only. I can't get CLANG
to build Monero here as it dies on some system headers, so if
someone wants to make it work on both, that'd be great.
In particular, the __AFL_LOOP construct should be made to work
so that a given run can fuzz multiple inputs, as the C++ load
time is substantial.
This commit is contained in:
moneromooo-monero 2017-06-24 12:38:41 +01:00
parent ae8841f2ab
commit 841231e5bd
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tests/fuzz/fuzzer.cpp Normal file
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// Copyright (c) 2017, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <boost/program_options.hpp>
#include "include_base_utils.h"
#include "common/command_line.h"
#include "fuzzer.h"
#if (!defined(__clang__) || (__clang__ < 5))
static int __AFL_LOOP(int)
{
static int once = 0;
if (once)
return 0;
once = 1;
return 1;
}
#endif
using namespace epee;
using namespace boost::program_options;
int run_fuzzer(int argc, const char **argv, Fuzzer &fuzzer)
{
TRY_ENTRY();
string_tools::set_module_name_and_folder(argv[0]);
//set up logging options
mlog_configure(mlog_get_default_log_path("fuzztests.log"), true);
mlog_set_log("*:FATAL,logging:none");
options_description desc_options("Allowed options");
command_line::add_arg(desc_options, command_line::arg_help);
variables_map vm;
bool r = command_line::handle_error_helper(desc_options, [&]()
{
store(parse_command_line(argc, argv, desc_options), vm);
notify(vm);
return true;
});
if (!r)
return 1;
if (command_line::get_arg(vm, command_line::arg_help))
{
std::cout << desc_options << std::endl;
return 0;
}
if (argc < 2)
{
std::cout << desc_options << std::endl;
return 1;
}
int ret = fuzzer.init();
if (ret)
return ret;
const std::string filename = argv[1];
while (__AFL_LOOP(1000))
{
ret = fuzzer.run(filename);
if (ret)
return ret;
}
CATCH_ENTRY_L0("fuzzer_main", 1);
return 0;
}