54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
// 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_UndefineSpace_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_ATTRIBUTES TPMA_NV_POLICY_DELETE is SET in the Index referenced by
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// nvIndex so this command may not be used to delete this Index (see
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// TPM2_NV_UndefineSpaceSpecial())
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// TPM_RC_NV_AUTHORIZATION attempt to use ownerAuth to delete an index created by the platform
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//
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TPM_RC
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TPM2_NV_UndefineSpace(
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NV_UndefineSpace_In *in // IN: input parameter list
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)
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{
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TPM_RC result;
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NV_INDEX nvIndex;
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// The command needs NV update. Check if NV is available.
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// A TPM_RC_NV_UNAVAILABLE or TPM_RC_NV_RATE error may be returned at
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// this point
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result = NvIsAvailable();
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if(result != TPM_RC_SUCCESS) return 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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// This command can't be used to delete an index with TPMA_NV_POLICY_DELETE SET
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if(SET == nvIndex.publicArea.attributes.TPMA_NV_POLICY_DELETE)
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return TPM_RC_ATTRIBUTES + RC_NV_UndefineSpace_nvIndex;
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// The owner may only delete an index that was defined with ownerAuth. The
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// platform may delete an index that was created with either auth.
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if( in->authHandle == TPM_RH_OWNER
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&& nvIndex.publicArea.attributes.TPMA_NV_PLATFORMCREATE == SET)
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return TPM_RC_NV_AUTHORIZATION;
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// Internal Data Update
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// Call implementation dependent internal routine to delete NV index
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NvDeleteEntity(in->nvIndex);
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return TPM_RC_SUCCESS;
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}
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