content/common/sandbox_seccomp_bpf_linux.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_COMMON_SANDBOX_SECCOMP_BPF_LINUX_H_
   6 #define CONTENT_COMMON_SANDBOX_SECCOMP_BPF_LINUX_H_
   7
   8 #include "base/basictypes.h"
   9 #include "sandbox/linux/seccomp-bpf/sandbox_bpf_policy_forward.h"
  10
  11 namespace content {
  12
  13 // This class has two main sets of APIs. One can be used to start the sandbox
  14 // for internal content process types, the other is indirectly exposed as
  15 // a public content/ API and uses a supplied policy.
  16 class SandboxSeccompBpf {
  17  public:
  18   // This is the API to enable a seccomp-bpf sandbox for content/
  19   // process-types:
  20   // Is the sandbox globally enabled, can anything use it at all ?
  21   // This looks at global command line flags to see if the sandbox
  22   // should be enabled at all.
  23   static bool IsSeccompBpfDesired();
  24   // Should the sandbox be enabled for process_type ?
  25   static bool ShouldEnableSeccompBpf(const std::string& process_type);
  26   // Check if the kernel supports this sandbox. It's useful to "prewarm"
  27   // this, part of the result will be cached.
  28   static bool SupportsSandbox();
  29   // Start the sandbox and apply the policy for process_type, depending on
  30   // command line switches.
  31   static bool StartSandbox(const std::string& process_type);
  32
  33   // This is the API to enable a seccomp-bpf sandbox by using an
  34   // external policy.
  35   static bool StartSandboxWithExternalPolicy(
  36       playground2::BpfSandboxPolicy policy);
  37   // The "baseline" policy can be a useful base to build a sandbox policy.
  38   static playground2::BpfSandboxPolicyCallback GetBaselinePolicy();
  39
  40  private:
  41   DISALLOW_IMPLICIT_CONSTRUCTORS(SandboxSeccompBpf);
  42 };
  43
  44 }  // namespace content
  45
  46 #endif  // CONTENT_COMMON_SANDBOX_SECCOMP_BPF_LINUX_H_
  47