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Diffstat (limited to 'driver/libfuzzer_driver.h')
-rw-r--r-- | driver/libfuzzer_driver.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/driver/libfuzzer_driver.h b/driver/libfuzzer_driver.h new file mode 100644 index 00000000..557277a5 --- /dev/null +++ b/driver/libfuzzer_driver.h @@ -0,0 +1,75 @@ +/* + * Copyright 2021 Code Intelligence GmbH + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#pragma once + +#include <memory> +#include <string> + +#include "absl/strings/match.h" +#include "fuzz_target_runner.h" +#include "fuzzed_data_provider.h" +#include "jvm_tooling.h" +#include "libfuzzer_callbacks.h" +#include "signal_handler.h" + +namespace jazzer { + +class AbstractLibfuzzerDriver { + public: + AbstractLibfuzzerDriver(int *argc, char ***argv, + const std::string &usage_string); + + virtual ~AbstractLibfuzzerDriver() = default; + + virtual RunResult TestOneInput(const uint8_t *data, std::size_t size) = 0; + + // Default value of the libFuzzer -error_exitcode flag. + static constexpr int kErrorExitCode = 77; + + // A libFuzzer-registered callback that outputs the crashing input, but does + // not include a stack trace. + static void (*libfuzzer_print_crashing_input_)(); + + protected: + // wrapper around the running jvm instance + std::unique_ptr<jazzer::JVM> jvm_; + + private: + // forwards signals caught while the JVM is running + std::unique_ptr<jazzer::SignalHandler> signal_handler_; + + void initJvm(const std::string &executable_path); +}; + +class LibfuzzerDriver : public AbstractLibfuzzerDriver { + public: + LibfuzzerDriver(int *argc, char ***argv); + + RunResult TestOneInput(const uint8_t *data, std::size_t size) override; + + ~LibfuzzerDriver() override = default; + + void DumpReproducer(const uint8_t *data, std::size_t size); + + private: + // initializes the fuzz target and invokes the TestOneInput function + std::unique_ptr<jazzer::FuzzTargetRunner> runner_; + + static std::string getUsageString(); +}; + +} // namespace jazzer |