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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef SANDBOX_LINUX_SECCOMP_BPF_SANDBOX_BPF_TEST_RUNNER_H_
#define SANDBOX_LINUX_SECCOMP_BPF_SANDBOX_BPF_TEST_RUNNER_H_
#include <memory>
#include "sandbox/linux/tests/sandbox_test_runner.h"
namespace sandbox {
namespace bpf_dsl {
class Policy;
}
// To create a SandboxBPFTestRunner object, one needs to implement this
// interface and pass an instance to the SandboxBPFTestRunner constructor.
// In the child process running the test, the BPFTesterDelegate object is
// guaranteed to not be destroyed until the child process terminates.
class BPFTesterDelegate {
public:
BPFTesterDelegate() {}
BPFTesterDelegate(const BPFTesterDelegate&) = delete;
BPFTesterDelegate& operator=(const BPFTesterDelegate&) = delete;
virtual ~BPFTesterDelegate() {}
// This will instanciate a policy suitable for the test we want to run. It is
// guaranteed to only be called from the child process that will run the
// test.
virtual std::unique_ptr<bpf_dsl::Policy> GetSandboxBPFPolicy() = 0;
// This will be called from a child process with the BPF sandbox turned on.
virtual void RunTestFunction() = 0;
};
// This class implements the SandboxTestRunner interface and Run() will
// initialize a seccomp-bpf sandbox (specified by |bpf_tester_delegate|) and
// run a test function (via |bpf_tester_delegate|) if the current kernel
// configuration allows it. If it can not run the test under seccomp-bpf,
// Run() will still compile the policy which should allow to get some coverage
// under tools that behave like Valgrind.
class SandboxBPFTestRunner : public SandboxTestRunner {
public:
// This constructor takes ownership of the |bpf_tester_delegate| object.
// (It doesn't take a std::unique_ptr since they make polymorphism verbose).
explicit SandboxBPFTestRunner(BPFTesterDelegate* bpf_tester_delegate);
SandboxBPFTestRunner(const SandboxBPFTestRunner&) = delete;
SandboxBPFTestRunner& operator=(const SandboxBPFTestRunner&) = delete;
~SandboxBPFTestRunner() override;
void Run() override;
bool ShouldCheckForLeaks() const override;
private:
std::unique_ptr<BPFTesterDelegate> bpf_tester_delegate_;
};
} // namespace sandbox
#endif // SANDBOX_LINUX_SECCOMP_BPF_SANDBOX_BPF_TEST_RUNNER_H_
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