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| 1 // Copyright (c) 2006-2010 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef SANDBOX_SRC_PROCESS_THREAD_POLICY_H_ | 5 #ifndef SANDBOX_SRC_PROCESS_THREAD_POLICY_H_ |
| 6 #define SANDBOX_SRC_PROCESS_THREAD_POLICY_H_ | 6 #define SANDBOX_SRC_PROCESS_THREAD_POLICY_H_ |
| 7 | 7 |
| 8 #include <stdint.h> |
| 9 |
| 8 #include <string> | 10 #include <string> |
| 9 | 11 |
| 10 #include "sandbox/win/src/policy_low_level.h" | 12 #include "sandbox/win/src/policy_low_level.h" |
| 11 | 13 |
| 12 #include "base/basictypes.h" | |
| 13 #include "base/strings/string16.h" | 14 #include "base/strings/string16.h" |
| 14 #include "sandbox/win/src/crosscall_server.h" | 15 #include "sandbox/win/src/crosscall_server.h" |
| 15 #include "sandbox/win/src/sandbox_policy.h" | 16 #include "sandbox/win/src/sandbox_policy.h" |
| 16 | 17 |
| 17 namespace sandbox { | 18 namespace sandbox { |
| 18 | 19 |
| 19 enum EvalResult; | 20 enum EvalResult; |
| 20 | 21 |
| 21 // This class centralizes most of the knowledge related to process execution. | 22 // This class centralizes most of the knowledge related to process execution. |
| 22 class ProcessPolicy { | 23 class ProcessPolicy { |
| 23 public: | 24 public: |
| 24 // Creates the required low-level policy rules to evaluate a high-level. | 25 // Creates the required low-level policy rules to evaluate a high-level. |
| 25 // policy rule for process creation | 26 // policy rule for process creation |
| 26 // 'name' is the executable to be spawn. | 27 // 'name' is the executable to be spawn. |
| 27 // 'semantics' is the desired semantics. | 28 // 'semantics' is the desired semantics. |
| 28 // 'policy' is the policy generator to which the rules are going to be added. | 29 // 'policy' is the policy generator to which the rules are going to be added. |
| 29 static bool GenerateRules(const wchar_t* name, | 30 static bool GenerateRules(const wchar_t* name, |
| 30 TargetPolicy::Semantics semantics, | 31 TargetPolicy::Semantics semantics, |
| 31 LowLevelPolicy* policy); | 32 LowLevelPolicy* policy); |
| 32 | 33 |
| 33 // Opens a thread from the child process and returns the handle. | 34 // Opens a thread from the child process and returns the handle. |
| 34 // client_info contains the information about the child process, | 35 // client_info contains the information about the child process, |
| 35 // desired_access is the access requested by the child and thread_id | 36 // desired_access is the access requested by the child and thread_id |
| 36 // is the thread_id to be opened. | 37 // is the thread_id to be opened. |
| 37 // The function returns the return value of NtOpenThread. | 38 // The function returns the return value of NtOpenThread. |
| 38 static NTSTATUS OpenThreadAction(const ClientInfo& client_info, | 39 static NTSTATUS OpenThreadAction(const ClientInfo& client_info, |
| 39 uint32 desired_access, | 40 uint32_t desired_access, |
| 40 uint32 thread_id, | 41 uint32_t thread_id, |
| 41 HANDLE* handle); | 42 HANDLE* handle); |
| 42 | 43 |
| 43 // Opens the process id passed in and returns the duplicated handle to | 44 // 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 // the child. We only allow the child processes to open themselves. Any other |
| 45 // pid open is denied. | 46 // pid open is denied. |
| 46 static NTSTATUS OpenProcessAction(const ClientInfo& client_info, | 47 static NTSTATUS OpenProcessAction(const ClientInfo& client_info, |
| 47 uint32 desired_access, | 48 uint32_t desired_access, |
| 48 uint32 process_id, | 49 uint32_t process_id, |
| 49 HANDLE* handle); | 50 HANDLE* handle); |
| 50 | 51 |
| 51 // Opens the token associated with the process and returns the duplicated | 52 // 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 // handle to the child. We only allow the child processes to open his own |
| 53 // token (using ::GetCurrentProcess()). | 54 // token (using ::GetCurrentProcess()). |
| 54 static NTSTATUS OpenProcessTokenAction(const ClientInfo& client_info, | 55 static NTSTATUS OpenProcessTokenAction(const ClientInfo& client_info, |
| 55 HANDLE process, | 56 HANDLE process, |
| 56 uint32 desired_access, | 57 uint32_t desired_access, |
| 57 HANDLE* handle); | 58 HANDLE* handle); |
| 58 | 59 |
| 59 // Opens the token associated with the process and returns the duplicated | 60 // 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 // handle to the child. We only allow the child processes to open his own |
| 61 // token (using ::GetCurrentProcess()). | 62 // token (using ::GetCurrentProcess()). |
| 62 static NTSTATUS OpenProcessTokenExAction(const ClientInfo& client_info, | 63 static NTSTATUS OpenProcessTokenExAction(const ClientInfo& client_info, |
| 63 HANDLE process, | 64 HANDLE process, |
| 64 uint32 desired_access, | 65 uint32_t desired_access, |
| 65 uint32 attributes, | 66 uint32_t attributes, |
| 66 HANDLE* handle); | 67 HANDLE* handle); |
| 67 | 68 |
| 68 // Processes a 'CreateProcessW()' request from the target. | 69 // Processes a 'CreateProcessW()' request from the target. |
| 69 // 'client_info' : the target process that is making the request. | 70 // 'client_info' : the target process that is making the request. |
| 70 // 'eval_result' : The desired policy action to accomplish. | 71 // 'eval_result' : The desired policy action to accomplish. |
| 71 // 'app_name' : The full path of the process to be created. | 72 // 'app_name' : The full path of the process to be created. |
| 72 // 'command_line' : The command line passed to the created process. | 73 // 'command_line' : The command line passed to the created process. |
| 73 static DWORD CreateProcessWAction(EvalResult eval_result, | 74 static DWORD CreateProcessWAction(EvalResult eval_result, |
| 74 const ClientInfo& client_info, | 75 const ClientInfo& client_info, |
| 75 const base::string16 &app_name, | 76 const base::string16 &app_name, |
| 76 const base::string16 &command_line, | 77 const base::string16 &command_line, |
| 77 PROCESS_INFORMATION* process_info); | 78 PROCESS_INFORMATION* process_info); |
| 78 }; | 79 }; |
| 79 | 80 |
| 80 } // namespace sandbox | 81 } // namespace sandbox |
| 81 | 82 |
| 82 | 83 |
| 83 #endif // SANDBOX_SRC_PROCESS_THREAD_POLICY_H_ | 84 #endif // SANDBOX_SRC_PROCESS_THREAD_POLICY_H_ |
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