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Diffstat (limited to 'qemu/roms/ipxe/src/include/ipxe/efi/Protocol/TcgService.h')
| -rw-r--r-- | qemu/roms/ipxe/src/include/ipxe/efi/Protocol/TcgService.h | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/include/ipxe/efi/Protocol/TcgService.h b/qemu/roms/ipxe/src/include/ipxe/efi/Protocol/TcgService.h new file mode 100644 index 000000000..1068448f0 --- /dev/null +++ b/qemu/roms/ipxe/src/include/ipxe/efi/Protocol/TcgService.h @@ -0,0 +1,209 @@ +/** @file + TCG Service Protocol as defined in TCG_EFI_Protocol_1_20_Final + See http://trustedcomputinggroup.org for the latest specification + +Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR> +This program and the accompanying materials are licensed and made available under +the terms and conditions of the BSD License that accompanies this distribution. +The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php. + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#ifndef _TCG_SERVICE_PROTOCOL_H_ +#define _TCG_SERVICE_PROTOCOL_H_ + +FILE_LICENCE ( BSD3 ); + +#include <ipxe/efi/IndustryStandard/UefiTcgPlatform.h> + +#define EFI_TCG_PROTOCOL_GUID \ + {0xf541796d, 0xa62e, 0x4954, { 0xa7, 0x75, 0x95, 0x84, 0xf6, 0x1b, 0x9c, 0xdd } } + +typedef struct _EFI_TCG_PROTOCOL EFI_TCG_PROTOCOL; + +typedef struct { + UINT8 Major; + UINT8 Minor; + UINT8 RevMajor; + UINT8 RevMinor; +} TCG_VERSION; + +typedef struct _TCG_EFI_BOOT_SERVICE_CAPABILITY { + UINT8 Size; /// Size of this structure. + TCG_VERSION StructureVersion; + TCG_VERSION ProtocolSpecVersion; + UINT8 HashAlgorithmBitmap; /// Hash algorithms . + /// This protocol is capable of : 01=SHA-1. + BOOLEAN TPMPresentFlag; /// 00h = TPM not present. + BOOLEAN TPMDeactivatedFlag; /// 01h = TPM currently deactivated. +} TCG_EFI_BOOT_SERVICE_CAPABILITY; + +typedef UINT32 TCG_ALGORITHM_ID; + +/// +/// Note: +/// Status codes returned for functions of EFI_TCG_PROTOCOL do not exactly match +/// those defined in the TCG EFI Protocol 1.20 Final Specification. +/// + +/** + This service provides EFI protocol capability information, state information + about the TPM, and Event Log state information. + + @param This Indicates the calling context + @param ProtocolCapability The callee allocates memory for a TCG_BOOT_SERVICE_CAPABILITY + structure and fills in the fields with the EFI protocol + capability information and the current TPM state information. + @param TCGFeatureFlags This is a pointer to the feature flags. No feature + flags are currently defined so this parameter + MUST be set to 0. However, in the future, + feature flags may be defined that, for example, + enable hash algorithm agility. + @param EventLogLocation This is a pointer to the address of the event log in memory. + @param EventLogLastEntry If the Event Log contains more than one entry, + this is a pointer to the address of the start of + the last entry in the event log in memory. + + @retval EFI_SUCCESS The operation completed successfully. + @retval EFI_INVALID_PARAMETER ProtocolCapability does not match TCG capability. +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_TCG_STATUS_CHECK)( + IN EFI_TCG_PROTOCOL *This, + OUT TCG_EFI_BOOT_SERVICE_CAPABILITY + *ProtocolCapability, + OUT UINT32 *TCGFeatureFlags, + OUT EFI_PHYSICAL_ADDRESS *EventLogLocation, + OUT EFI_PHYSICAL_ADDRESS *EventLogLastEntry + ); + +/** + This service abstracts the capability to do a hash operation on a data buffer. + + @param This Indicates the calling context. + @param HashData The pointer to the data buffer to be hashed. + @param HashDataLen The length of the data buffer to be hashed. + @param AlgorithmId Identification of the Algorithm to use for the hashing operation. + @param HashedDataLen Resultant length of the hashed data. + @param HashedDataResult Resultant buffer of the hashed data. + + @retval EFI_SUCCESS The operation completed successfully. + @retval EFI_INVALID_PARAMETER HashDataLen is NULL. + @retval EFI_INVALID_PARAMETER HashDataLenResult is NULL. + @retval EFI_OUT_OF_RESOURCES Cannot allocate buffer of size *HashedDataLen. + @retval EFI_UNSUPPORTED AlgorithmId not supported. + @retval EFI_BUFFER_TOO_SMALL *HashedDataLen < sizeof (TCG_DIGEST). +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_TCG_HASH_ALL)( + IN EFI_TCG_PROTOCOL *This, + IN UINT8 *HashData, + IN UINT64 HashDataLen, + IN TCG_ALGORITHM_ID AlgorithmId, + IN OUT UINT64 *HashedDataLen, + IN OUT UINT8 **HashedDataResult + ); + +/** + This service abstracts the capability to add an entry to the Event Log. + + @param This Indicates the calling context + @param TCGLogData The pointer to the start of the data buffer containing + the TCG_PCR_EVENT data structure. All fields in + this structure are properly filled by the caller. + @param EventNumber The event number of the event just logged. + @param Flags Indicates additional flags. Only one flag has been + defined at this time, which is 0x01 and means the + extend operation should not be performed. All + other bits are reserved. + + @retval EFI_SUCCESS The operation completed successfully. + @retval EFI_OUT_OF_RESOURCES Insufficient memory in the event log to complete this action. +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_TCG_LOG_EVENT)( + IN EFI_TCG_PROTOCOL *This, + IN TCG_PCR_EVENT *TCGLogData, + IN OUT UINT32 *EventNumber, + IN UINT32 Flags + ); + +/** + This service is a proxy for commands to the TPM. + + @param This Indicates the calling context. + @param TpmInputParameterBlockSize Size of the TPM input parameter block. + @param TpmInputParameterBlock The pointer to the TPM input parameter block. + @param TpmOutputParameterBlockSize Size of the TPM output parameter block. + @param TpmOutputParameterBlock The pointer to the TPM output parameter block. + + @retval EFI_SUCCESS The operation completed successfully. + @retval EFI_INVALID_PARAMETER Invalid ordinal. + @retval EFI_UNSUPPORTED Current Task Priority Level >= EFI_TPL_CALLBACK. + @retval EFI_TIMEOUT The TIS timed-out. +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_TCG_PASS_THROUGH_TO_TPM)( + IN EFI_TCG_PROTOCOL *This, + IN UINT32 TpmInputParameterBlockSize, + IN UINT8 *TpmInputParameterBlock, + IN UINT32 TpmOutputParameterBlockSize, + IN UINT8 *TpmOutputParameterBlock + ); + +/** + This service abstracts the capability to do a hash operation on a data buffer, extend a specific TPM PCR with the hash result, and add an entry to the Event Log + + @param This Indicates the calling context + @param HashData The physical address of the start of the data buffer + to be hashed, extended, and logged. + @param HashDataLen The length, in bytes, of the buffer referenced by HashData + @param AlgorithmId Identification of the Algorithm to use for the hashing operation + @param TCGLogData The physical address of the start of the data + buffer containing the TCG_PCR_EVENT data structure. + @param EventNumber The event number of the event just logged. + @param EventLogLastEntry The physical address of the first byte of the entry + just placed in the Event Log. If the Event Log was + empty when this function was called then this physical + address will be the same as the physical address of + the start of the Event Log. + + @retval EFI_SUCCESS The operation completed successfully. + @retval EFI_UNSUPPORTED AlgorithmId != TPM_ALG_SHA. + @retval EFI_UNSUPPORTED Current TPL >= EFI_TPL_CALLBACK. + @retval EFI_DEVICE_ERROR The command was unsuccessful. +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_TCG_HASH_LOG_EXTEND_EVENT)( + IN EFI_TCG_PROTOCOL *This, + IN EFI_PHYSICAL_ADDRESS HashData, + IN UINT64 HashDataLen, + IN TCG_ALGORITHM_ID AlgorithmId, + IN OUT TCG_PCR_EVENT *TCGLogData, + IN OUT UINT32 *EventNumber, + OUT EFI_PHYSICAL_ADDRESS *EventLogLastEntry + ); + +/// +/// The EFI_TCG Protocol abstracts TCG activity. +/// +struct _EFI_TCG_PROTOCOL { + EFI_TCG_STATUS_CHECK StatusCheck; + EFI_TCG_HASH_ALL HashAll; + EFI_TCG_LOG_EVENT LogEvent; + EFI_TCG_PASS_THROUGH_TO_TPM PassThroughToTpm; + EFI_TCG_HASH_LOG_EXTEND_EVENT HashLogExtendEvent; +}; + +extern EFI_GUID gEfiTcgProtocolGuid; + +#endif |