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efb01a10 | 1 | /** @file\r |
8021f4c7 SZ |
2 | Implementation functions and structures for var check protocol\r |
3 | and variable lock protocol based on VarCheckLib.\r | |
efb01a10 SZ |
4 | \r |
5 | Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>\r | |
124b3f92 | 6 | Copyright (c) Microsoft Corporation.\r |
9d510e61 | 7 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
efb01a10 SZ |
8 | \r |
9 | **/\r | |
10 | \r | |
11 | #include "Variable.h"\r | |
efb01a10 | 12 | \r |
efb01a10 SZ |
13 | /**\r |
14 | Register SetVariable check handler.\r | |
15 | \r | |
16 | @param[in] Handler Pointer to check handler.\r | |
17 | \r | |
18 | @retval EFI_SUCCESS The SetVariable check handler was registered successfully.\r | |
19 | @retval EFI_INVALID_PARAMETER Handler is NULL.\r | |
20 | @retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has\r | |
21 | already been signaled.\r | |
22 | @retval EFI_OUT_OF_RESOURCES There is not enough resource for the SetVariable check handler register request.\r | |
23 | @retval EFI_UNSUPPORTED This interface is not implemented.\r | |
24 | For example, it is unsupported in VarCheck protocol if both VarCheck and SmmVarCheck protocols are present.\r | |
25 | \r | |
26 | **/\r | |
27 | EFI_STATUS\r | |
28 | EFIAPI\r | |
29 | VarCheckRegisterSetVariableCheckHandler (\r | |
1436aea4 | 30 | IN VAR_CHECK_SET_VARIABLE_CHECK_HANDLER Handler\r |
efb01a10 SZ |
31 | )\r |
32 | {\r | |
1436aea4 | 33 | EFI_STATUS Status;\r |
efb01a10 | 34 | \r |
fa0737a8 | 35 | AcquireLockOnlyAtBootTime (&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);\r |
8021f4c7 | 36 | Status = VarCheckLibRegisterSetVariableCheckHandler (Handler);\r |
fa0737a8 SZ |
37 | ReleaseLockOnlyAtBootTime (&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);\r |
38 | \r | |
39 | return Status;\r | |
efb01a10 SZ |
40 | }\r |
41 | \r | |
efb01a10 SZ |
42 | /**\r |
43 | Variable property set.\r | |
44 | \r | |
45 | @param[in] Name Pointer to the variable name.\r | |
46 | @param[in] Guid Pointer to the vendor GUID.\r | |
47 | @param[in] VariableProperty Pointer to the input variable property.\r | |
48 | \r | |
49 | @retval EFI_SUCCESS The property of variable specified by the Name and Guid was set successfully.\r | |
50 | @retval EFI_INVALID_PARAMETER Name, Guid or VariableProperty is NULL, or Name is an empty string,\r | |
51 | or the fields of VariableProperty are not valid.\r | |
52 | @retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has\r | |
53 | already been signaled.\r | |
54 | @retval EFI_OUT_OF_RESOURCES There is not enough resource for the variable property set request.\r | |
55 | \r | |
56 | **/\r | |
57 | EFI_STATUS\r | |
58 | EFIAPI\r | |
59 | VarCheckVariablePropertySet (\r | |
1436aea4 MK |
60 | IN CHAR16 *Name,\r |
61 | IN EFI_GUID *Guid,\r | |
62 | IN VAR_CHECK_VARIABLE_PROPERTY *VariableProperty\r | |
efb01a10 SZ |
63 | )\r |
64 | {\r | |
1436aea4 | 65 | EFI_STATUS Status;\r |
efb01a10 | 66 | \r |
efb01a10 | 67 | AcquireLockOnlyAtBootTime (&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);\r |
8021f4c7 | 68 | Status = VarCheckLibVariablePropertySet (Name, Guid, VariableProperty);\r |
efb01a10 SZ |
69 | ReleaseLockOnlyAtBootTime (&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);\r |
70 | \r | |
71 | return Status;\r | |
72 | }\r | |
73 | \r | |
4edb1866 SZ |
74 | /**\r |
75 | Variable property get.\r | |
76 | \r | |
77 | @param[in] Name Pointer to the variable name.\r | |
78 | @param[in] Guid Pointer to the vendor GUID.\r | |
79 | @param[out] VariableProperty Pointer to the output variable property.\r | |
80 | \r | |
81 | @retval EFI_SUCCESS The property of variable specified by the Name and Guid was got successfully.\r | |
82 | @retval EFI_INVALID_PARAMETER Name, Guid or VariableProperty is NULL, or Name is an empty string.\r | |
83 | @retval EFI_NOT_FOUND The property of variable specified by the Name and Guid was not found.\r | |
84 | \r | |
85 | **/\r | |
86 | EFI_STATUS\r | |
87 | EFIAPI\r | |
88 | VarCheckVariablePropertyGet (\r | |
1436aea4 MK |
89 | IN CHAR16 *Name,\r |
90 | IN EFI_GUID *Guid,\r | |
91 | OUT VAR_CHECK_VARIABLE_PROPERTY *VariableProperty\r | |
4edb1866 SZ |
92 | )\r |
93 | {\r | |
1436aea4 | 94 | EFI_STATUS Status;\r |
4edb1866 | 95 | \r |
4edb1866 | 96 | AcquireLockOnlyAtBootTime (&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);\r |
8021f4c7 | 97 | Status = VarCheckLibVariablePropertyGet (Name, Guid, VariableProperty);\r |
efb01a10 SZ |
98 | ReleaseLockOnlyAtBootTime (&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);\r |
99 | \r | |
4edb1866 | 100 | return Status;\r |
efb01a10 | 101 | }\r |