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