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-rw-r--r--tools/fuzzing/interface/FuzzingInterface.h115
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diff --git a/tools/fuzzing/interface/FuzzingInterface.h b/tools/fuzzing/interface/FuzzingInterface.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * Interface definitions for the unified fuzzing interface
+ */
+
+#ifndef FuzzingInterface_h__
+#define FuzzingInterface_h__
+
+#include <fstream>
+
+#ifdef LIBFUZZER
+# include "FuzzerExtFunctions.h"
+#endif
+
+#include "FuzzerRegistry.h"
+#include "mozilla/Assertions.h"
+
+#ifndef JS_STANDALONE
+# include "mozilla/Logging.h"
+#endif
+
+namespace mozilla {
+
+#ifdef JS_STANDALONE
+void fuzzing_log(const char* aFmt, ...);
+# define MOZ_LOG_EXPAND_ARGS(...) __VA_ARGS__
+
+# define FUZZING_LOG(args) fuzzing_log(MOZ_LOG_EXPAND_ARGS args);
+#else
+extern LazyLogModule gFuzzingLog;
+
+# define FUZZING_LOG(args) \
+ MOZ_LOG(mozilla::gFuzzingLog, mozilla::LogLevel::Verbose, args)
+#endif // JS_STANDALONE
+
+typedef int (*FuzzingTestFuncRaw)(const uint8_t*, size_t);
+
+#ifdef AFLFUZZ
+
+static int afl_interface_raw(const char* testFile,
+ FuzzingTestFuncRaw testFunc) {
+ char* buf = NULL;
+
+ while (__AFL_LOOP(1000)) {
+ std::ifstream is;
+ is.open(testFile, std::ios::binary);
+ is.seekg(0, std::ios::end);
+ int len = is.tellg();
+ is.seekg(0, std::ios::beg);
+ MOZ_RELEASE_ASSERT(len >= 0);
+ if (!len) {
+ is.close();
+ continue;
+ }
+ buf = (char*)realloc(buf, len);
+ MOZ_RELEASE_ASSERT(buf);
+ is.read(buf, len);
+ is.close();
+ testFunc((uint8_t*)buf, (size_t)len);
+ }
+
+ free(buf);
+
+ return 0;
+}
+
+# define MOZ_AFL_INTERFACE_COMMON() \
+ char* testFilePtr = getenv("MOZ_FUZZ_TESTFILE"); \
+ if (!testFilePtr) { \
+ fprintf(stderr, \
+ "Must specify testfile in MOZ_FUZZ_TESTFILE environment " \
+ "variable.\n"); \
+ return 1; \
+ } \
+ /* Make a copy of testFilePtr so the testing function can safely call \
+ * getenv \
+ */ \
+ std::string testFile(testFilePtr);
+
+# define MOZ_AFL_INTERFACE_RAW(initFunc, testFunc, moduleName) \
+ static int afl_fuzz_##moduleName(const uint8_t* data, size_t size) { \
+ MOZ_RELEASE_ASSERT(data == NULL && size == 0); \
+ MOZ_AFL_INTERFACE_COMMON(); \
+ return ::mozilla::afl_interface_raw(testFile.c_str(), testFunc); \
+ } \
+ static void __attribute__((constructor)) AFLRegister##moduleName() { \
+ ::mozilla::FuzzerRegistry::getInstance().registerModule( \
+ #moduleName, initFunc, afl_fuzz_##moduleName); \
+ }
+#else
+# define MOZ_AFL_INTERFACE_RAW(initFunc, testFunc, moduleName) /* Nothing */
+#endif // AFLFUZZ
+
+#ifdef LIBFUZZER
+# define MOZ_LIBFUZZER_INTERFACE_RAW(initFunc, testFunc, moduleName) \
+ static void __attribute__((constructor)) LibFuzzerRegister##moduleName() { \
+ ::mozilla::FuzzerRegistry::getInstance().registerModule( \
+ #moduleName, initFunc, testFunc); \
+ }
+#else
+# define MOZ_LIBFUZZER_INTERFACE_RAW(initFunc, testFunc, \
+ moduleName) /* Nothing */
+#endif
+
+#define MOZ_FUZZING_INTERFACE_RAW(initFunc, testFunc, moduleName) \
+ MOZ_LIBFUZZER_INTERFACE_RAW(initFunc, testFunc, moduleName); \
+ MOZ_AFL_INTERFACE_RAW(initFunc, testFunc, moduleName);
+
+} // namespace mozilla
+
+#endif // FuzzingInterface_h__