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