Files
system76-edk2/OvmfPkg/Include/Library/BlobVerifierLib.h
Dov Murik 0cb48007f7 OvmfPkg: add library class BlobVerifierLib with null implementation
BlobVerifierLib will be used to verify blobs fetching them from QEMU's
firmware config (fw_cfg) in platforms that enable such verification.

The null implementation BlobVerifierLibNull treats all blobs as valid.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ashish Kalra <ashish.kalra@amd.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3457
Signed-off-by: Dov Murik <dovmurik@linux.ibm.com>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
2021-07-29 09:49:50 +00:00

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C

/** @file
Blob verification library
This library class allows verifiying whether blobs from external sources
(such as QEMU's firmware config) are trusted.
Copyright (C) 2021, IBM Corporation
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef BLOB_VERIFIER_LIB_H_
#define BLOB_VERIFIER_LIB_H_
#include <Uefi/UefiBaseType.h>
#include <Base.h>
/**
Verify blob from an external source.
@param[in] BlobName The name of the blob
@param[in] Buf The data of the blob
@param[in] BufSize The size of the blob in bytes
@retval EFI_SUCCESS The blob was verified successfully.
@retval EFI_ACCESS_DENIED The blob could not be verified, and therefore
should be considered non-secure.
**/
EFI_STATUS
EFIAPI
VerifyBlob (
IN CONST CHAR16 *BlobName,
IN CONST VOID *Buf,
IN UINT32 BufSize
);
#endif