blob: a9bb16908f981497a594512d6793448e751d1c9e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
// This file was extracted from the TCG Published
// Trusted Platform Module Library
// Part 3: Commands
// Family "2.0"
// Level 00 Revision 01.16
// October 30, 2014
#include "InternalRoutines.h"
#include "PCR_Reset_fp.h"
//
//
// Error Returns Meaning
//
// TPM_RC_LOCALITY current command locality is not allowed to reset the PCR referenced
// by pcrHandle
//
TPM_RC
TPM2_PCR_Reset(
PCR_Reset_In *in // IN: input parameter list
)
{
TPM_RC result;
// Input Validation
// Check if the reset operation is allowed by the current command locality
if(!PCRIsResetAllowed(in->pcrHandle))
return TPM_RC_LOCALITY;
// If PCR is state saved and we need to update orderlyState, check NV
// availability
if(PCRIsStateSaved(in->pcrHandle) && gp.orderlyState != SHUTDOWN_NONE)
{
result = NvIsAvailable();
if(result != TPM_RC_SUCCESS)
return result;
g_clearOrderly = TRUE;
}
// Internal Data Update
// Reset selected PCR in all banks to 0
PCRSetValue(in->pcrHandle, 0);
// Indicate that the PCR changed so that pcrCounter will be incremented if
// necessary.
PCRChanged(in->pcrHandle);
return TPM_RC_SUCCESS;
}
|