sandbox/win/src/process_thread_policy.h

   1 // Copyright (c) 2006-2010 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 SANDBOX_SRC_PROCESS_THREAD_POLICY_H_
   6 #define SANDBOX_SRC_PROCESS_THREAD_POLICY_H_
   7
   8 #include <string>
   9
  10 #include "sandbox/win/src/policy_low_level.h"
  11
  12 #include "base/basictypes.h"
  13 #include "sandbox/win/src/crosscall_server.h"
  14 #include "sandbox/win/src/sandbox_policy.h"
  15
  16 namespace sandbox {
  17
  18 enum EvalResult;
  19
  20 // This class centralizes most of the knowledge related to process execution.
  21 class ProcessPolicy {
  22  public:
  23   // Creates the required low-level policy rules to evaluate a high-level.
  24   // policy rule for process creation
  25   // 'name' is the executable to be spawn.
  26   // 'semantics' is the desired semantics.
  27   // 'policy' is the policy generator to which the rules are going to be added.
  28   static bool GenerateRules(const wchar_t* name,
  29                             TargetPolicy::Semantics semantics,
  30                             LowLevelPolicy* policy);
  31
  32   // Opens a thread from the child process and returns the handle.
  33   // client_info contains the information about the child process,
  34   // desired_access is the access requested by the child and thread_id
  35   // is the thread_id to be opened.
  36   // The function returns the return value of NtOpenThread.
  37   static NTSTATUS OpenThreadAction(const ClientInfo& client_info,
  38                                    uint32 desired_access,
  39                                    uint32 thread_id,
  40                                    HANDLE* handle);
  41
  42   // Opens the process id passed in and returns the duplicated handle to
  43   // the child. We only allow the child processes to open themselves. Any other
  44   // pid open is denied.
  45   static NTSTATUS OpenProcessAction(const ClientInfo& client_info,
  46                                     uint32 desired_access,
  47                                     uint32 process_id,
  48                                     HANDLE* handle);
  49
  50   // Opens the token associated with the process and returns the duplicated
  51   // handle to the child. We only allow the child processes to open his own
  52   // token (using ::GetCurrentProcess()).
  53   static NTSTATUS OpenProcessTokenAction(const ClientInfo& client_info,
  54                                          HANDLE process,
  55                                          uint32 desired_access,
  56                                          HANDLE* handle);
  57
  58   // Opens the token associated with the process and returns the duplicated
  59   // handle to the child. We only allow the child processes to open his own
  60   // token (using ::GetCurrentProcess()).
  61   static NTSTATUS OpenProcessTokenExAction(const ClientInfo& client_info,
  62                                            HANDLE process,
  63                                            uint32 desired_access,
  64                                            uint32 attributes,
  65                                            HANDLE* handle);
  66
  67   // Processes a 'CreateProcessW()' request from the target.
  68   // 'client_info' : the target process that is making the request.
  69   // 'eval_result' : The desired policy action to accomplish.
  70   // 'app_name' : The full path of the process to be created.
  71   // 'command_line' : The command line passed to the created process.
  72   static DWORD CreateProcessWAction(EvalResult eval_result,
  73                                     const ClientInfo& client_info,
  74                                     const std::wstring &app_name,
  75                                     const std::wstring &command_line,
  76                                     PROCESS_INFORMATION* process_info);
  77 };
  78
  79 }  // namespace sandbox
  80
  81
  82 #endif  // SANDBOX_SRC_PROCESS_THREAD_POLICY_H_