projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 98625337 JY |
1 | /** @file\r |
| 2 | This library is used by other modules to measure data to TPM.\r | |
| 3 | \r | |
| 4 | Copyright (c) 2020, Intel Corporation. All rights reserved. <BR>\r | |
| 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
| 6 | \r | |
| 7 | **/\r | |
| 8 | \r | |
| 9 | #include <PiPei.h>\r | |
| 10 | \r | |
| 11 | #include <Library/BaseMemoryLib.h>\r | |
| 12 | #include <Library/PeiServicesLib.h>\r | |
| 13 | #include <Library/PeiServicesTablePointerLib.h>\r | |
| 14 | #include <Library/DebugLib.h>\r | |
| 15 | #include <Library/HobLib.h>\r | |
| 16 | #include <Library/TpmMeasurementLib.h>\r | |
| 17 | \r | |
| 18 | #include <Ppi/Tcg.h>\r | |
| 19 | #include <IndustryStandard/UefiTcgPlatform.h>\r | |
| 20 | \r | |
| 21 | /**\r | |
| 22 | Tpm measure and log data, and extend the measurement result into a specific PCR.\r | |
| 23 | \r | |
| 24 | @param[in] PcrIndex PCR Index.\r | |
| 25 | @param[in] EventType Event type.\r | |
| 26 | @param[in] EventLog Measurement event log.\r | |
| 27 | @param[in] LogLen Event log length in bytes.\r | |
| 28 | @param[in] HashData The start of the data buffer to be hashed, extended.\r | |
| 29 | @param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData\r | |
| 30 | \r | |
| 31 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 32 | @retval EFI_UNSUPPORTED TPM device not available.\r | |
| 33 | @retval EFI_OUT_OF_RESOURCES Out of memory.\r | |
| 34 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
| 35 | **/\r | |
| 36 | EFI_STATUS\r | |
| 37 | EFIAPI\r | |
| 38 | TpmMeasureAndLogData (\r | |
| c411b485 MK |
39 | IN UINT32 PcrIndex,\r |
| 40 | IN UINT32 EventType,\r | |
| 41 | IN VOID *EventLog,\r | |
| 42 | IN UINT32 LogLen,\r | |
| 43 | IN VOID *HashData,\r | |
| 44 | IN UINT64 HashDataLen\r | |
| 98625337 JY |
45 | )\r |
| 46 | {\r | |
| c411b485 MK |
47 | EFI_STATUS Status;\r |
| 48 | EDKII_TCG_PPI *TcgPpi;\r | |
| 49 | TCG_PCR_EVENT_HDR TcgEventHdr;\r | |
| 98625337 JY |
50 | \r |
| 51 | Status = PeiServicesLocatePpi (\r | |
| 52 | &gEdkiiTcgPpiGuid,\r | |
| 53 | 0,\r | |
| 54 | NULL,\r | |
| c411b485 | 55 | (VOID **)&TcgPpi\r |
| 98625337 | 56 | );\r |
| c411b485 | 57 | if (EFI_ERROR (Status)) {\r |
| 98625337 JY |
58 | return Status;\r |
| 59 | }\r | |
| 60 | \r | |
| 61 | TcgEventHdr.PCRIndex = PcrIndex;\r | |
| 62 | TcgEventHdr.EventType = EventType;\r | |
| 63 | TcgEventHdr.EventSize = LogLen;\r | |
| 64 | \r | |
| 65 | Status = TcgPpi->HashLogExtendEvent (\r | |
| 66 | TcgPpi,\r | |
| 67 | 0,\r | |
| 68 | HashData,\r | |
| 69 | (UINTN)HashDataLen,\r | |
| 70 | &TcgEventHdr,\r | |
| 71 | EventLog\r | |
| 72 | );\r | |
| 73 | return Status;\r | |
| 74 | }\r |