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 "base/strings/string16.h"
  14 #include "sandbox/win/src/crosscall_server.h"
  15 #include "sandbox/win/src/sandbox_policy.h"
  16
  17 namespace sandbox {
  18
  19 enum EvalResult;
  20
  21 // This class centralizes most of the knowledge related to process execution.
  22 class ProcessPolicy {
  23  public:
  24   // Creates the required low-level policy rules to evaluate a high-level.
  25   // policy rule for process creation
  26   // 'name' is the executable to be spawn.
  27   // 'semantics' is the desired semantics.
  28   // 'policy' is the policy generator to which the rules are going to be added.
  29   static bool GenerateRules(const wchar_t* name,
  30                             TargetPolicy::Semantics semantics,
  31                             LowLevelPolicy* policy);
  32
  33   // Opens a thread from the child process and returns the handle.
  34   // client_info contains the information about the child process,
  35   // desired_access is the access requested by the child and thread_id
  36   // is the thread_id to be opened.
  37   // The function returns the return value of NtOpenThread.
  38   static NTSTATUS OpenThreadAction(const ClientInfo& client_info,
  39                                    uint32 desired_access,
  40                                    uint32 thread_id,
  41                                    HANDLE* handle);
  42
  43   // Opens the process id passed in and returns the duplicated handle to
  44   // the child. We only allow the child processes to open themselves. Any other
  45   // pid open is denied.
  46   static NTSTATUS OpenProcessAction(const ClientInfo& client_info,
  47                                     uint32 desired_access,
  48                                     uint32 process_id,
  49                                     HANDLE* handle);
  50
  51   // Opens the token associated with the process and returns the duplicated
  52   // handle to the child. We only allow the child processes to open his own
  53   // token (using ::GetCurrentProcess()).
  54   static NTSTATUS OpenProcessTokenAction(const ClientInfo& client_info,
  55                                          HANDLE process,
  56                                          uint32 desired_access,
  57                                          HANDLE* handle);
  58
  59   // Opens the token associated with the process and returns the duplicated
  60   // handle to the child. We only allow the child processes to open his own
  61   // token (using ::GetCurrentProcess()).
  62   static NTSTATUS OpenProcessTokenExAction(const ClientInfo& client_info,
  63                                            HANDLE process,
  64                                            uint32 desired_access,
  65                                            uint32 attributes,
  66                                            HANDLE* handle);
  67
  68   // Processes a 'CreateProcessW()' request from the target.
  69   // 'client_info' : the target process that is making the request.
  70   // 'eval_result' : The desired policy action to accomplish.
  71   // 'app_name' : The full path of the process to be created.
  72   // 'command_line' : The command line passed to the created process.
  73   static DWORD CreateProcessWAction(EvalResult eval_result,
  74                                     const ClientInfo& client_info,
  75                                     const base::string16 &app_name,
  76                                     const base::string16 &command_line,
  77                                     PROCESS_INFORMATION* process_info);
  78 };
  79
  80 }  // namespace sandbox
  81
  82
  83 #endif  // SANDBOX_SRC_PROCESS_THREAD_POLICY_H_