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// Copyright 2022 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_SANDBOX_TESTING_H_
#define V8_SANDBOX_TESTING_H_
#include "src/common/globals.h"
namespace v8 {
namespace internal {
#ifdef V8_ENABLE_SANDBOX
class SandboxTesting {
public:
#ifdef V8_EXPOSE_MEMORY_CORRUPTION_API
// A JavaScript API that emulates typical exploit primitives.
//
// This can be used for testing the sandbox, for example to write regression
// tests for bugs in the sandbox or to develop fuzzers.
V8_EXPORT_PRIVATE static void InstallMemoryCorruptionApi(Isolate* isolate);
#endif // V8_EXPOSE_MEMORY_CORRUPTION_API
// A signal handler that filters out "harmless" (for the sandbox) crashes.
//
// If an access violation (i.e. a SIGSEGV or SIGBUS) happens inside the
// sandbox address space it is considered harmless for the sandbox and so the
// process is simply terminated through _exit. On the other hand, an access
// violation outside the sandbox address space indicates a security issue with
// the sandbox. In that case, the signal is forwarded to the original signal
// handler which will report the violation appropriately.
// Currently supported on Linux only.
V8_EXPORT_PRIVATE static void InstallSandboxCrashFilter();
};
#endif // V8_ENABLE_SANDBOX
} // namespace internal
} // namespace v8
#endif // V8_SANDBOX_TESTING_H_
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