77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
/*
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* Copyright 2021 Code Intelligence GmbH
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <jni.h>
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#include <string>
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#include <vector>
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#include "jvm_tooling.h"
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namespace jazzer {
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enum class RunResult {
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kOk,
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kException,
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kDumpAndContinue,
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};
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// Invokes the following static methods in the java fuzz target class:
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// 1. On construction:
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// - `public static void fuzzerInitialize()`
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// OR
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// - `public static void fuzzerInitialize(String[] args)`
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// 2. On every call of Run():
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// - `public static void fuzzerTestOneInput(FuzzedDataProvider data)`
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// OR
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// - `public static void fuzzerTestOneInput(byte[] input)`
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// 3. On destruction:
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// - `public static void fuzzerTearDown()`
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class FuzzTargetRunner : public ExceptionPrinter {
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private:
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const JVM &jvm_;
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jclass jclass_;
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jmethodID fuzzer_initialize_;
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jmethodID fuzzer_initialize_with_args_;
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jmethodID fuzzer_test_one_input_bytes_;
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jmethodID fuzzer_test_one_input_data_;
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jmethodID fuzzer_tear_down_;
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jclass jazzer_;
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jfieldID last_finding_;
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std::vector<jlong> ignore_tokens_;
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[[nodiscard]] std::string DetectFuzzTargetClass() const;
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[[nodiscard]] jthrowable GetFinding() const;
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public:
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// Initializes the java fuzz target by calling `void fuzzerInitialize(...)`.
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explicit FuzzTargetRunner(
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JVM &jvm, const std::vector<std::string> &additional_target_args = {});
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// Calls the fuzz target tear down function. This can be useful to join any
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// Threads so that the JVM shuts down correctly.
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virtual ~FuzzTargetRunner();
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// Propagate the fuzzer input to the java fuzz target.
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RunResult Run(const uint8_t *data, std::size_t size);
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void DumpReproducer(const uint8_t *data, std::size_t size);
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};
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} // namespace jazzer
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