| /* |
| * 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 <jni.h> |
| |
| #include <string> |
| #include <vector> |
| |
| #include "jvm_tooling.h" |
| |
| namespace jazzer { |
| |
| enum class RunResult { |
| kOk, |
| kException, |
| kDumpAndContinue, |
| }; |
| |
| // Invokes the following static methods in the java fuzz target class: |
| // 1. On construction: |
| // - `public static void fuzzerInitialize()` |
| // OR |
| // - `public static void fuzzerInitialize(String[] args)` |
| // 2. On every call of Run(): |
| // - `public static void fuzzerTestOneInput(FuzzedDataProvider data)` |
| // OR |
| // - `public static void fuzzerTestOneInput(byte[] input)` |
| // 3. On destruction: |
| // - `public static void fuzzerTearDown()` |
| class FuzzTargetRunner : public ExceptionPrinter { |
| private: |
| const JVM &jvm_; |
| jclass jclass_; |
| jmethodID fuzzer_initialize_; |
| jmethodID fuzzer_initialize_with_args_; |
| jmethodID fuzzer_test_one_input_bytes_; |
| jmethodID fuzzer_test_one_input_data_; |
| jmethodID fuzzer_tear_down_; |
| jclass jazzer_; |
| jfieldID last_finding_; |
| std::vector<jlong> ignore_tokens_; |
| |
| [[nodiscard]] std::string DetectFuzzTargetClass() const; |
| [[nodiscard]] jthrowable GetFinding() const; |
| |
| public: |
| // Initializes the java fuzz target by calling `void fuzzerInitialize(...)`. |
| explicit FuzzTargetRunner( |
| JVM &jvm, const std::vector<std::string> &additional_target_args = {}); |
| |
| // Calls the fuzz target tear down function. This can be useful to join any |
| // Threads so that the JVM shuts down correctly. |
| virtual ~FuzzTargetRunner(); |
| |
| // Propagate the fuzzer input to the java fuzz target. |
| RunResult Run(const uint8_t *data, std::size_t size); |
| |
| void DumpReproducer(const uint8_t *data, std::size_t size); |
| }; |
| |
| } // namespace jazzer |