37 lines
1.1 KiB
C++
37 lines
1.1 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef SANDBOX_LINUX_BPF_DSL_POLICY_H_
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#define SANDBOX_LINUX_BPF_DSL_POLICY_H_
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#include "base/macros.h"
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#include "sandbox/linux/bpf_dsl/bpf_dsl_forward.h"
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#include "sandbox/sandbox_export.h"
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namespace sandbox {
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namespace bpf_dsl {
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// Interface to implement to define a BPF sandbox policy.
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class SANDBOX_EXPORT Policy {
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public:
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Policy() {}
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virtual ~Policy() {}
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// User extension point for writing custom sandbox policies.
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// The returned ResultExpr will control how the kernel responds to the
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// specified system call number.
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virtual ResultExpr EvaluateSyscall(int sysno) const = 0;
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// Optional overload for specifying alternate behavior for invalid
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// system calls. The default is to return ENOSYS.
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virtual ResultExpr InvalidSyscall() const;
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private:
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DISALLOW_COPY_AND_ASSIGN(Policy);
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};
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} // namespace bpf_dsl
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} // namespace sandbox
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#endif // SANDBOX_LINUX_BPF_DSL_POLICY_H_
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