diff options
Diffstat (limited to 'SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLib/PeiDxeTpmPlatformHierarchyLib.c')
| -rw-r--r-- | SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLib/PeiDxeTpmPlatformHierarchyLib.c | 74 |
1 files changed, 38 insertions, 36 deletions
diff --git a/SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLib/PeiDxeTpmPlatformHierarchyLib.c b/SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLib/PeiDxeTpmPlatformHierarchyLib.c index 0bb04a20fc..b8838766bc 100644 --- a/SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLib/PeiDxeTpmPlatformHierarchyLib.c +++ b/SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLib/PeiDxeTpmPlatformHierarchyLib.c @@ -27,7 +27,7 @@ // algorithm used for context integrity.
//
-UINT16 mAuthSize;
+UINT16 mAuthSize;
/**
Generate high-quality entropy source through RDRAND.
@@ -42,8 +42,8 @@ UINT16 mAuthSize; EFI_STATUS
EFIAPI
RdRandGenerateEntropy (
- IN UINTN Length,
- OUT UINT8 *Entropy
+ IN UINTN Length,
+ OUT UINT8 *Entropy
)
{
EFI_STATUS Status;
@@ -51,9 +51,9 @@ RdRandGenerateEntropy ( UINT64 Seed[2];
UINT8 *Ptr;
- Status = EFI_NOT_READY;
- BlockCount = Length / sizeof(Seed);
- Ptr = (UINT8 *)Entropy;
+ Status = EFI_NOT_READY;
+ BlockCount = Length / sizeof (Seed);
+ Ptr = (UINT8 *)Entropy;
//
// Generate high-quality seed for DRBG Entropy
@@ -63,10 +63,11 @@ RdRandGenerateEntropy ( if (EFI_ERROR (Status)) {
return Status;
}
- CopyMem (Ptr, Seed, sizeof(Seed));
+
+ CopyMem (Ptr, Seed, sizeof (Seed));
BlockCount--;
- Ptr = Ptr + sizeof(Seed);
+ Ptr = Ptr + sizeof (Seed);
}
//
@@ -76,7 +77,8 @@ RdRandGenerateEntropy ( if (EFI_ERROR (Status)) {
return Status;
}
- CopyMem (Ptr, Seed, (Length % sizeof(Seed)));
+
+ CopyMem (Ptr, Seed, (Length % sizeof (Seed)));
return Status;
}
@@ -94,18 +96,17 @@ RdRandGenerateEntropy ( EFI_STATUS
EFIAPI
GetAuthSize (
- OUT UINT16 *AuthSize
+ OUT UINT16 *AuthSize
)
{
- EFI_STATUS Status;
- TPML_PCR_SELECTION Pcrs;
- UINTN Index;
- UINT16 DigestSize;
+ EFI_STATUS Status;
+ TPML_PCR_SELECTION Pcrs;
+ UINTN Index;
+ UINT16 DigestSize;
Status = EFI_SUCCESS;
while (mAuthSize == 0) {
-
mAuthSize = SHA1_DIGEST_SIZE;
ZeroMem (&Pcrs, sizeof (TPML_PCR_SELECTION));
Status = Tpm2GetCapabilityPcrs (&Pcrs);
@@ -121,30 +122,31 @@ GetAuthSize ( DEBUG ((DEBUG_ERROR, "alg - %x\n", Pcrs.pcrSelections[Index].hash));
switch (Pcrs.pcrSelections[Index].hash) {
- case TPM_ALG_SHA1:
- DigestSize = SHA1_DIGEST_SIZE;
- break;
- case TPM_ALG_SHA256:
- DigestSize = SHA256_DIGEST_SIZE;
- break;
- case TPM_ALG_SHA384:
- DigestSize = SHA384_DIGEST_SIZE;
- break;
- case TPM_ALG_SHA512:
- DigestSize = SHA512_DIGEST_SIZE;
- break;
- case TPM_ALG_SM3_256:
- DigestSize = SM3_256_DIGEST_SIZE;
- break;
- default:
- DigestSize = SHA1_DIGEST_SIZE;
- break;
+ case TPM_ALG_SHA1:
+ DigestSize = SHA1_DIGEST_SIZE;
+ break;
+ case TPM_ALG_SHA256:
+ DigestSize = SHA256_DIGEST_SIZE;
+ break;
+ case TPM_ALG_SHA384:
+ DigestSize = SHA384_DIGEST_SIZE;
+ break;
+ case TPM_ALG_SHA512:
+ DigestSize = SHA512_DIGEST_SIZE;
+ break;
+ case TPM_ALG_SM3_256:
+ DigestSize = SM3_256_DIGEST_SIZE;
+ break;
+ default:
+ DigestSize = SHA1_DIGEST_SIZE;
+ break;
}
if (DigestSize > mAuthSize) {
mAuthSize = DigestSize;
}
}
+
break;
}
@@ -160,9 +162,9 @@ RandomizePlatformAuth ( VOID
)
{
- EFI_STATUS Status;
- UINT16 AuthSize;
- TPM2B_AUTH NewPlatformAuth;
+ EFI_STATUS Status;
+ UINT16 AuthSize;
+ TPM2B_AUTH NewPlatformAuth;
//
// Send Tpm2HierarchyChange Auth with random value to avoid PlatformAuth being null
|