Vadim Bendebury | 5679752 | 2015-05-20 10:32:25 -0700 | [diff] [blame] | 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 "PolicyPhysicalPresence_fp.h" |
| 10 | TPM_RC |
| 11 | TPM2_PolicyPhysicalPresence( |
| 12 | PolicyPhysicalPresence_In *in // IN: input parameter list |
| 13 | ) |
| 14 | { |
| 15 | SESSION *session; |
| 16 | TPM_CC commandCode = TPM_CC_PolicyPhysicalPresence; |
| 17 | HASH_STATE hashState; |
| 18 | |
| 19 | // Internal Data Update |
| 20 | |
| 21 | // Get pointer to the session structure |
| 22 | session = SessionGet(in->policySession); |
| 23 | |
| 24 | // Update policy hash |
| 25 | // policyDigestnew = hash(policyDigestold || TPM_CC_PolicyPhysicalPresence) |
| 26 | // Start hash |
| 27 | CryptStartHash(session->authHashAlg, &hashState); |
| 28 | |
| 29 | // add old digest |
| 30 | CryptUpdateDigest2B(&hashState, &session->u2.policyDigest.b); |
| 31 | |
| 32 | // add commandCode |
| 33 | CryptUpdateDigestInt(&hashState, sizeof(TPM_CC), &commandCode); |
| 34 | |
| 35 | // complete the digest |
| 36 | CryptCompleteHash2B(&hashState, &session->u2.policyDigest.b); |
| 37 | |
| 38 | // update session attribute |
| 39 | session->attributes.isPPRequired = SET; |
| 40 | |
| 41 | return TPM_RC_SUCCESS; |
| 42 | } |