1 files changed, 65 insertions, 0 deletions
diff --git a/chromium/sandbox/linux/seccomp-bpf/bpf_tester_compatibility_delegate.h b/chromium/sandbox/linux/seccomp-bpf/bpf_tester_compatibility_delegate.h
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index 00000000000..8890f798749
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+++ b/chromium/sandbox/linux/seccomp-bpf/bpf_tester_compatibility_delegate.h
@@ -0,0 +1,65 @@
+// Copyright 2014 The Chromium 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 SANDBOX_LINUX_SECCOMP_BPF_BPF_TESTER_COMPATIBILITY_DELEGATE_H_
+#define SANDBOX_LINUX_SECCOMP_BPF_BPF_TESTER_COMPATIBILITY_DELEGATE_H_
+
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "base/memory/scoped_ptr.h"
+#include "sandbox/linux/seccomp-bpf/sandbox_bpf_compatibility_policy.h"
+#include "sandbox/linux/seccomp-bpf/sandbox_bpf_test_runner.h"
+#include "sandbox/linux/tests/sandbox_test_runner.h"
+#include "sandbox/linux/tests/unit_tests.h"
+
+namespace sandbox {
+
+// This templated class allows building a BPFTesterDelegate from a
+// deprecated-style BPF policy (that is a SyscallEvaluator function pointer,
+// instead of a SandboxBPFPolicy class), specified in |policy_function| and a
+// function pointer to a test in |test_function|.
+// This allows both the policy and the test function to take a pointer to an
+// object of type "Aux" as a parameter. This is used to implement the BPF_TEST
+// macro and should generally not be used directly.
+template <class Aux>
+class BPFTesterCompatibilityDelegate : public BPFTesterDelegate {
+ public:
+  typedef Aux AuxType;
+  BPFTesterCompatibilityDelegate(
+      void (*test_function)(AuxType*),
+      typename CompatibilityPolicy<AuxType>::SyscallEvaluator policy_function)
+      : aux_(),
+        test_function_(test_function),
+        policy_function_(policy_function) {}
+
+  virtual ~BPFTesterCompatibilityDelegate() {}
+
+  virtual scoped_ptr<SandboxBPFPolicy> GetSandboxBPFPolicy() OVERRIDE {
+    // The current method is guaranteed to only run in the child process
+    // running the test. In this process, the current object is guaranteed
+    // to live forever. So it's ok to pass aux_pointer_for_policy_ to
+    // the policy, which could in turn pass it to the kernel via Trap().
+    return scoped_ptr<SandboxBPFPolicy>(
+        new CompatibilityPolicy<AuxType>(policy_function_, &aux_));
+  }
+
+  virtual void RunTestFunction() OVERRIDE {
+    // Run the actual test.
+    // The current object is guaranteed to live forever in the child process
+    // where this will run.
+    test_function_(&aux_);
+  }
+
+ private:
+  AuxType aux_;
+  void (*test_function_)(AuxType*);
+  typename CompatibilityPolicy<AuxType>::SyscallEvaluator policy_function_;
+  DISALLOW_COPY_AND_ASSIGN(BPFTesterCompatibilityDelegate);
+};
+
+}  // namespace sandbox
+
+#endif  // SANDBOX_LINUX_SECCOMP_BPF_BPF_TESTER_COMPATIBILITY_DELEGATE_H_