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55 lines
1.8 KiB
55 lines
1.8 KiB
// This file was extracted from the TCG Published |
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// Trusted Platform Module Library |
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// Part 3: Commands |
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// Family "2.0" |
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// Level 00 Revision 01.16 |
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// October 30, 2014 |
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#include "InternalRoutines.h" |
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#include "NV_Read_fp.h" |
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#include "NV_spt_fp.h" |
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// |
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// |
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// Error Returns Meaning |
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// |
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// TPM_RC_NV_AUTHORIZATION the authorization was valid but the authorizing entity (authHandle) is |
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// not allowed to read from the Index referenced by nvIndex |
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// TPM_RC_NV_LOCKED the Index referenced by nvIndex is read locked |
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// TPM_RC_NV_RANGE read range defined by size and offset is outside the range of the |
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// Index referenced by nvIndex |
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// TPM_RC_NV_UNINITIALIZED the Index referenced by nvIndex has not been initialized (written) |
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// |
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TPM_RC |
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TPM2_NV_Read( |
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NV_Read_In *in, // IN: input parameter list |
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NV_Read_Out *out // OUT: output parameter list |
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) |
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{ |
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NV_INDEX nvIndex; |
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TPM_RC result; |
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// Input Validation |
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// Get NV index info |
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NvGetIndexInfo(in->nvIndex, &nvIndex); |
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// Common read access checks. NvReadAccessChecks() returns |
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// TPM_RC_NV_AUTHORIZATION, TPM_RC_NV_LOCKED, or TPM_RC_NV_UNINITIALIZED |
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// error may be returned at this point |
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result = NvReadAccessChecks(in->authHandle, in->nvIndex); |
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if(result != TPM_RC_SUCCESS) |
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return result; |
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// Too much data |
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if((in->size + in->offset) > nvIndex.publicArea.dataSize) |
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return TPM_RC_NV_RANGE; |
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// Command Output |
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// Set the return size |
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out->data.t.size = in->size; |
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// Perform the read |
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NvGetIndexData(in->nvIndex, &nvIndex, in->offset, in->size, out->data.t.buffer); |
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return TPM_RC_SUCCESS; |
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}
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