You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
68 lines
2.5 KiB
68 lines
2.5 KiB
// 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 "NV_Write_fp.h" |
|
#include "NV_spt_fp.h" |
|
// |
|
// |
|
// Error Returns Meaning |
|
// |
|
// TPM_RC_ATTRIBUTES Index referenced by nvIndex has either TPMA_NV_BITS, |
|
// TPMA_NV_COUNTER, or TPMA_NV_EVENT attribute SET |
|
// TPM_RC_NV_AUTHORIZATION the authorization was valid but the authorizing entity (authHandle) is |
|
// not allowed to write to the Index referenced by nvIndex |
|
// TPM_RC_NV_LOCKED Index referenced by nvIndex is write locked |
|
// TPM_RC_NV_RANGE if TPMA_NV_WRITEALL is SET then the write is not the size of the |
|
// Index referenced by nvIndex; otherwise, the write extends beyond the |
|
// limits of the Index |
|
// |
|
TPM_RC |
|
TPM2_NV_Write( |
|
NV_Write_In *in // IN: input parameter list |
|
) |
|
{ |
|
NV_INDEX nvIndex; |
|
TPM_RC result; |
|
|
|
// Input Validation |
|
|
|
// Get NV index info |
|
NvGetIndexInfo(in->nvIndex, &nvIndex); |
|
|
|
// common access checks. NvWrtieAccessChecks() may return |
|
// TPM_RC_NV_AUTHORIZATION or TPM_RC_NV_LOCKED |
|
result = NvWriteAccessChecks(in->authHandle, in->nvIndex); |
|
if(result != TPM_RC_SUCCESS) |
|
return result; |
|
|
|
// Bits index, extend index or counter index may not be updated by |
|
// TPM2_NV_Write |
|
if( nvIndex.publicArea.attributes.TPMA_NV_COUNTER == SET |
|
|| nvIndex.publicArea.attributes.TPMA_NV_BITS == SET |
|
|| nvIndex.publicArea.attributes.TPMA_NV_EXTEND == SET) |
|
return TPM_RC_ATTRIBUTES; |
|
|
|
// Too much data |
|
if((in->data.t.size + in->offset) > nvIndex.publicArea.dataSize) |
|
return TPM_RC_NV_RANGE; |
|
|
|
// If this index requires a full sized write, make sure that input range is |
|
// full sized |
|
if( nvIndex.publicArea.attributes.TPMA_NV_WRITEALL == SET |
|
&& in->data.t.size < nvIndex.publicArea.dataSize) |
|
return TPM_RC_NV_RANGE; |
|
|
|
// Internal Data Update |
|
|
|
// Perform the write. This called routine will SET the TPMA_NV_WRITTEN |
|
// attribute if it has not already been SET. If NV isn't available, an error |
|
// will be returned. |
|
return NvWriteIndexData(in->nvIndex, &nvIndex, in->offset, |
|
in->data.t.size, in->data.t.buffer); |
|
|
|
}
|
|
|