diff options
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSm3/HashInstanceLibSm3.c')
-rw-r--r-- | src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSm3/HashInstanceLibSm3.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSm3/HashInstanceLibSm3.c b/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSm3/HashInstanceLibSm3.c new file mode 100644 index 00000000..be175bf1 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSm3/HashInstanceLibSm3.c @@ -0,0 +1,150 @@ +/** @file + BaseCrypto SM3 hash instance library. + It can be registered to BaseCrypto router, to serve as hash engine. + + Copyright (c) 2013 - 2019, Intel Corporation. All rights reserved.<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent +**/ + +#include <PiPei.h> +#include <Library/BaseLib.h> +#include <Library/BaseMemoryLib.h> +#include <Library/Tpm2CommandLib.h> +#include <Library/DebugLib.h> +#include <Library/BaseCryptLib.h> +#include <Library/MemoryAllocationLib.h> +#include <Library/HashLib.h> + +/** + The function set SM3 to digest list. + + @param DigestList digest list + @param Sm3Digest SM3 digest +**/ +VOID +Tpm2SetSm3ToDigestList ( + IN TPML_DIGEST_VALUES *DigestList, + IN UINT8 *Sm3Digest + ) +{ + DigestList->count = 1; + DigestList->digests[0].hashAlg = TPM_ALG_SM3_256; + CopyMem ( + DigestList->digests[0].digest.sm3_256, + Sm3Digest, + SM3_256_DIGEST_SIZE + ); +} + +/** + Start hash sequence. + + @param HashHandle Hash handle. + + @retval EFI_SUCCESS Hash sequence start and HandleHandle returned. + @retval EFI_OUT_OF_RESOURCES No enough resource to start hash. +**/ +EFI_STATUS +EFIAPI +Sm3HashInit ( + OUT HASH_HANDLE *HashHandle + ) +{ + VOID *Sm3Ctx; + UINTN CtxSize; + + CtxSize = Sm3GetContextSize (); + Sm3Ctx = AllocatePool (CtxSize); + if (Sm3Ctx == NULL) { + return EFI_OUT_OF_RESOURCES; + } + + Sm3Init (Sm3Ctx); + + *HashHandle = (HASH_HANDLE)Sm3Ctx; + + return EFI_SUCCESS; +} + +/** + Update hash sequence data. + + @param HashHandle Hash handle. + @param DataToHash Data to be hashed. + @param DataToHashLen Data size. + + @retval EFI_SUCCESS Hash sequence updated. +**/ +EFI_STATUS +EFIAPI +Sm3HashUpdate ( + IN HASH_HANDLE HashHandle, + IN VOID *DataToHash, + IN UINTN DataToHashLen + ) +{ + VOID *Sm3Ctx; + + Sm3Ctx = (VOID *)HashHandle; + Sm3Update (Sm3Ctx, DataToHash, DataToHashLen); + + return EFI_SUCCESS; +} + +/** + Complete hash sequence complete. + + @param HashHandle Hash handle. + @param DigestList Digest list. + + @retval EFI_SUCCESS Hash sequence complete and DigestList is returned. +**/ +EFI_STATUS +EFIAPI +Sm3HashFinal ( + IN HASH_HANDLE HashHandle, + OUT TPML_DIGEST_VALUES *DigestList + ) +{ + UINT8 Digest[SM3_256_DIGEST_SIZE]; + VOID *Sm3Ctx; + + Sm3Ctx = (VOID *)HashHandle; + Sm3Final (Sm3Ctx, Digest); + + FreePool (Sm3Ctx); + + Tpm2SetSm3ToDigestList (DigestList, Digest); + + return EFI_SUCCESS; +} + +HASH_INTERFACE mSm3InternalHashInstance = { + HASH_ALGORITHM_SM3_256_GUID, + Sm3HashInit, + Sm3HashUpdate, + Sm3HashFinal, +}; + +/** + The function register SM3 instance. + + @retval EFI_SUCCESS SM3 instance is registered, or system dose not support register SM3 instance +**/ +EFI_STATUS +EFIAPI +HashInstanceLibSm3Constructor ( + VOID + ) +{ + EFI_STATUS Status; + + Status = RegisterHashInterfaceLib (&mSm3InternalHashInstance); + if ((Status == EFI_SUCCESS) || (Status == EFI_UNSUPPORTED)) { + // + // Unsupported means platform policy does not need this instance enabled. + // + return EFI_SUCCESS; + } + return Status; +} |