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      1 
      2 /*
      3  * Licensed Materials - Property of IBM
      4  *
      5  * trousers - An open source TCG Software Stack
      6  *
      7  * (C) Copyright International Business Machines Corp. 2004-2007
      8  *
      9  */
     10 
     11 
     12 #include <stdlib.h>
     13 #include <stdio.h>
     14 #include <string.h>
     15 #include <unistd.h>
     16 #include <sys/types.h>
     17 #include <sys/stat.h>
     18 #include <sys/mman.h>
     19 #include <fcntl.h>
     20 #include <errno.h>
     21 
     22 #include "trousers/tss.h"
     23 #include "trousers_types.h"
     24 #include "trousers_types.h"
     25 #include "tcs_tsp.h"
     26 #include "tcs_utils.h"
     27 #include "tcs_int_literals.h"
     28 #include "capabilities.h"
     29 #include "tcsps.h"
     30 #include "tcslog.h"
     31 #include "tddl.h"
     32 #include "req_mgr.h"
     33 #include "tcsd_wrap.h"
     34 #include "tcsd.h"
     35 
     36 TSS_RESULT
     37 UnloadBlob_PCR_INFO_SHORT(UINT64 *offset, BYTE *blob, TPM_PCR_INFO_SHORT *pcrInfoOut)
     38 {
     39 	TSS_RESULT result;
     40 	BYTE locAtRelease;
     41 	TPM_DIGEST digest;
     42 
     43 	LogDebugFn("UnloadBlob_PCR_INFO_SHORT.");
     44 	/* Only adjust the offset until the end of this data type */
     45 	if (!pcrInfoOut) {
     46 		if ((result = UnloadBlob_PCR_SELECTION(offset, blob, NULL)))
     47 			return result;
     48 		/* What should go to &pcrInfoOut->localityAtRelease */
     49 		UnloadBlob_BYTE(offset, NULL, blob);
     50 		/* What should go to &pcrInfoOut->digestAtRelease */
     51 		UnloadBlob_DIGEST(offset, blob, NULL);
     52 		return TSS_SUCCESS;
     53 	}
     54 
     55 	/* Normal retrieve or TPM_PCR_INFO_SHORT (not used yet, kept for
     56 	 * integrity purposes.
     57 	 * TPM_PCR_SELECTION pcrSelection
     58 	 * TPM_LOCALITY_SELECTION localityAtRelease
     59 	 * TPM_COMPOSITE_HASH digestAtRelease
     60 	 *  */
     61 	if ((result = UnloadBlob_PCR_SELECTION(offset, blob, &pcrInfoOut->pcrSelection)))
     62 		return result;
     63 
     64 	UnloadBlob_BYTE(offset, &locAtRelease, blob);
     65 	pcrInfoOut->localityAtRelease = locAtRelease;
     66 	UnloadBlob_DIGEST(offset, blob, &digest);
     67 	pcrInfoOut->digestAtRelease = digest;
     68 
     69 	return TSS_SUCCESS;
     70 }
     71 
     72 
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