projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 124b3f92 BB |
1 | /** @file -- VariableLockRequestToLock.c\r |
| 2 | Temporary location of the RequestToLock shim code while\r | |
| 3 | projects are moved to VariablePolicy. Should be removed when deprecated.\r | |
| 4 | \r | |
| 5 | Copyright (c) Microsoft Corporation.\r | |
| 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
| 7 | \r | |
| 8 | **/\r | |
| 9 | \r | |
| 10 | #include <Uefi.h>\r | |
| 11 | \r | |
| 12 | #include <Library/DebugLib.h>\r | |
| 13 | #include <Library/MemoryAllocationLib.h>\r | |
| 14 | \r | |
| 15 | #include <Protocol/VariableLock.h>\r | |
| 16 | \r | |
| 17 | #include <Protocol/VariablePolicy.h>\r | |
| 18 | #include <Library/VariablePolicyLib.h>\r | |
| 19 | #include <Library/VariablePolicyHelperLib.h>\r | |
| 20 | \r | |
| 21 | \r | |
| 22 | /**\r | |
| 23 | DEPRECATED. THIS IS ONLY HERE AS A CONVENIENCE WHILE PORTING.\r | |
| 24 | Mark a variable that will become read-only after leaving the DXE phase of execution.\r | |
| 25 | Write request coming from SMM environment through EFI_SMM_VARIABLE_PROTOCOL is allowed.\r | |
| 26 | \r | |
| 27 | @param[in] This The VARIABLE_LOCK_PROTOCOL instance.\r | |
| 28 | @param[in] VariableName A pointer to the variable name that will be made read-only subsequently.\r | |
| 29 | @param[in] VendorGuid A pointer to the vendor GUID that will be made read-only subsequently.\r | |
| 30 | \r | |
| 31 | @retval EFI_SUCCESS The variable specified by the VariableName and the VendorGuid was marked\r | |
| 32 | as pending to be read-only.\r | |
| 33 | @retval EFI_INVALID_PARAMETER VariableName or VendorGuid is NULL.\r | |
| 34 | Or VariableName is an empty string.\r | |
| 35 | @retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has\r | |
| 36 | already been signaled.\r | |
| 37 | @retval EFI_OUT_OF_RESOURCES There is not enough resource to hold the lock request.\r | |
| 38 | **/\r | |
| 39 | EFI_STATUS\r | |
| 40 | EFIAPI\r | |
| 41 | VariableLockRequestToLock (\r | |
| 42 | IN CONST EDKII_VARIABLE_LOCK_PROTOCOL *This,\r | |
| 43 | IN CHAR16 *VariableName,\r | |
| 44 | IN EFI_GUID *VendorGuid\r | |
| 45 | )\r | |
| 46 | {\r | |
| 47 | EFI_STATUS Status;\r | |
| 48 | VARIABLE_POLICY_ENTRY *NewPolicy;\r | |
| 49 | \r | |
| 50 | NewPolicy = NULL;\r | |
| 51 | Status = CreateBasicVariablePolicy( VendorGuid,\r | |
| 52 | VariableName,\r | |
| 53 | VARIABLE_POLICY_NO_MIN_SIZE,\r | |
| 54 | VARIABLE_POLICY_NO_MAX_SIZE,\r | |
| 55 | VARIABLE_POLICY_NO_MUST_ATTR,\r | |
| 56 | VARIABLE_POLICY_NO_CANT_ATTR,\r | |
| 57 | VARIABLE_POLICY_TYPE_LOCK_NOW,\r | |
| 58 | &NewPolicy );\r | |
| 59 | if (!EFI_ERROR( Status )) {\r | |
| 60 | Status = RegisterVariablePolicy( NewPolicy );\r | |
| 61 | }\r | |
| 62 | if (EFI_ERROR( Status )) {\r | |
| 63 | DEBUG(( DEBUG_ERROR, "%a - Failed to lock variable %s! %r\n", __FUNCTION__, VariableName, Status ));\r | |
| 64 | ASSERT_EFI_ERROR( Status );\r | |
| 65 | }\r | |
| 66 | if (NewPolicy != NULL) {\r | |
| 67 | FreePool( NewPolicy );\r | |
| 68 | }\r | |
| 69 | \r | |
| 70 | return Status;\r | |
| 71 | }\r |