content/public/common/sandbox_init.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_PUBLIC_COMMON_SANDBOX_INIT_H_
   6 #define CONTENT_PUBLIC_COMMON_SANDBOX_INIT_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/process/process.h"
  10 #include "build/build_config.h"
  11 #include "content/common/content_export.h"
  12
  13 namespace base {
  14 class CommandLine;
  15 class FilePath;
  16 }
  17
  18 namespace sandbox {
  19 class SandboxBPFPolicy;
  20 struct SandboxInterfaceInfo;
  21 }
  22
  23 namespace content {
  24 class SandboxedProcessLauncherDelegate;
  25
  26 #if defined(OS_WIN)
  27
  28 // Initialize the sandbox for renderer, gpu, utility, worker, nacl, and plug-in
  29 // processes, depending on the command line flags. Although The browser process
  30 // is not sandboxed, this also needs to be called because it will initialize
  31 // the broker code.
  32 // Returns true if the sandbox was initialized succesfully, false if an error
  33 // occurred.  If process_type isn't one that needs sandboxing true is always
  34 // returned.
  35 CONTENT_EXPORT bool InitializeSandbox(
  36     sandbox::SandboxInterfaceInfo* sandbox_info);
  37
  38 // This is a restricted version of Windows' DuplicateHandle() function
  39 // that works inside the sandbox and can send handles but not retrieve
  40 // them.  Unlike DuplicateHandle(), it takes a process ID rather than
  41 // a process handle.  It returns true on success, false otherwise.
  42 CONTENT_EXPORT bool BrokerDuplicateHandle(HANDLE source_handle,
  43                                           DWORD target_process_id,
  44                                           HANDLE* target_handle,
  45                                           DWORD desired_access,
  46                                           DWORD options);
  47
  48 // Inform the current process's sandbox broker (e.g. the broker for
  49 // 32-bit processes) about a process created under a different sandbox
  50 // broker (e.g. the broker for 64-bit processes).  This allows
  51 // BrokerDuplicateHandle() to send handles to a process managed by
  52 // another broker.  For example, it allows the 32-bit renderer to send
  53 // handles to 64-bit NaCl processes.  This returns true on success,
  54 // false otherwise.
  55 CONTENT_EXPORT bool BrokerAddTargetPeer(HANDLE peer_process);
  56
  57 // Launch a sandboxed process. |delegate| may be NULL. If |delegate| is non-NULL
  58 // then it just has to outlive this method call.
  59 CONTENT_EXPORT base::ProcessHandle StartSandboxedProcess(
  60     SandboxedProcessLauncherDelegate* delegate,
  61     base::CommandLine* cmd_line);
  62
  63 #elif defined(OS_MACOSX)
  64
  65 // Initialize the sandbox of the given |sandbox_type|, optionally specifying a
  66 // directory to allow access to. Note specifying a directory needs to be
  67 // supported by the sandbox profile associated with the given |sandbox_type|.
  68 // Valid values for |sandbox_type| are defined either by the enum SandboxType,
  69 // or by ContentClient::GetSandboxProfileForSandboxType().
  70 //
  71 // If the |sandbox_type| isn't one of the ones defined by content then the
  72 // embedder is queried using ContentClient::GetSandboxPolicyForSandboxType().
  73 // The embedder can use values for |sandbox_type| starting from
  74 // sandbox::SANDBOX_PROCESS_TYPE_AFTER_LAST_TYPE.
  75 //
  76 // Returns true if the sandbox was initialized succesfully, false if an error
  77 // occurred.  If process_type isn't one that needs sandboxing, no action is
  78 // taken and true is always returned.
  79 CONTENT_EXPORT bool InitializeSandbox(int sandbox_type,
  80                                       const base::FilePath& allowed_path);
  81
  82 #elif defined(OS_LINUX)
  83
  84 class SandboxInitializerDelegate;
  85
  86 // Initialize a seccomp-bpf sandbox. |policy| may not be NULL.
  87 // Returns true if the sandbox has been properly engaged.
  88 CONTENT_EXPORT bool InitializeSandbox(
  89     scoped_ptr<sandbox::SandboxBPFPolicy> policy);
  90
  91 // Return a "baseline" policy. This is used by a SandboxInitializerDelegate to
  92 // implement a policy that is derived from the baseline.
  93 CONTENT_EXPORT scoped_ptr<sandbox::SandboxBPFPolicy>
  94 GetBPFSandboxBaselinePolicy();
  95 #endif  // defined(OS_LINUX)
  96
  97 }  // namespace content
  98
  99 #endif  // CONTENT_PUBLIC_COMMON_SANDBOX_INIT_H_