1 /** @file
2 Ihis is BaseCrypto router support function.
3
4 Copyright (c) 2013 - 2015, Intel Corporation. All rights reserved. <BR>
5 This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
9
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12
13 **/
14
15 #include <PiPei.h>
16 #include <Library/BaseLib.h>
17 #include <Library/BaseMemoryLib.h>
18 #include <Library/Tpm2CommandLib.h>
19 #include <Library/DebugLib.h>
20 #include <Library/MemoryAllocationLib.h>
21 #include <Library/HashLib.h>
22 #include <Protocol/Tcg2Protocol.h>
23
24 typedef struct {
25 EFI_GUID Guid;
26 UINT32 Mask;
27 } TPM2_HASH_MASK;
28
29 TPM2_HASH_MASK mTpm2HashMask[] = {
30 {HASH_ALGORITHM_SHA1_GUID, HASH_ALG_SHA1},
31 {HASH_ALGORITHM_SHA256_GUID, HASH_ALG_SHA256},
32 {HASH_ALGORITHM_SHA384_GUID, HASH_ALG_SHA384},
33 {HASH_ALGORITHM_SHA512_GUID, HASH_ALG_SHA512},
34 };
35
36 /**
37 The function get hash mask info from algorithm.
38
39 @param HashGuid Hash Guid
40
41 @return HashMask
42 **/
43 UINT32
44 EFIAPI
Tpm2GetHashMaskFromAlgo(IN EFI_GUID * HashGuid)45 Tpm2GetHashMaskFromAlgo (
46 IN EFI_GUID *HashGuid
47 )
48 {
49 UINTN Index;
50 for (Index = 0; Index < sizeof(mTpm2HashMask)/sizeof(mTpm2HashMask[0]); Index++) {
51 if (CompareGuid (HashGuid, &mTpm2HashMask[Index].Guid)) {
52 return mTpm2HashMask[Index].Mask;
53 }
54 }
55 return 0;
56 }
57
58 /**
59 The function set digest to digest list.
60
61 @param DigestList digest list
62 @param Digest digest data
63 **/
64 VOID
65 EFIAPI
Tpm2SetHashToDigestList(IN OUT TPML_DIGEST_VALUES * DigestList,IN TPML_DIGEST_VALUES * Digest)66 Tpm2SetHashToDigestList (
67 IN OUT TPML_DIGEST_VALUES *DigestList,
68 IN TPML_DIGEST_VALUES *Digest
69 )
70 {
71 CopyMem (
72 &DigestList->digests[DigestList->count],
73 &Digest->digests[0],
74 sizeof(Digest->digests[0])
75 );
76 DigestList->count ++;
77 }
78