SecurityPkg/TPM2: Move GetDigestFromDigestList() to Tpm2CommandLib
This patch just moves function Tpm2GetDigestFromDigestList() from drivers to library as GetDigestFromDigestList() and no functionality change. Cc: Chao B Zhang <chao.b.zhang@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jiewen Yao <jiewen.yao@intel.com> Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Chao Zhang <chao.b.zhang@intel.com>
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@@ -1,7 +1,7 @@
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/** @file
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Implement TPM2 help.
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Copyright (c) 2013 - 2014, Intel Corporation. All rights reserved. <BR>
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Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved. <BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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@@ -164,3 +164,39 @@ CopyAuthSessionResponse (
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return (UINT32)(UINTN)(Buffer - (UINT8 *)AuthSessionIn);
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}
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/**
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This function get digest from digest list.
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@param HashAlg digest algorithm
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@param DigestList digest list
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@param Digest digest
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@retval EFI_SUCCESS Sha1Digest is found and returned.
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@retval EFI_NOT_FOUND Sha1Digest is not found.
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**/
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EFI_STATUS
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EFIAPI
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GetDigestFromDigestList (
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IN TPMI_ALG_HASH HashAlg,
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IN TPML_DIGEST_VALUES *DigestList,
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IN VOID *Digest
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)
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{
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UINTN Index;
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UINT16 DigestSize;
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DigestSize = GetHashSizeFromAlgo (HashAlg);
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for (Index = 0; Index < DigestList->count; Index++) {
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if (DigestList->digests[Index].hashAlg == HashAlg) {
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CopyMem (
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Digest,
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&DigestList->digests[Index].digest,
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DigestSize
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);
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return EFI_SUCCESS;
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}
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}
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return EFI_NOT_FOUND;
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}
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