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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. 2007
      8  *
      9  */
     10 
     11 #include <stdlib.h>
     12 #include <stdio.h>
     13 #include <string.h>
     14 #include <inttypes.h>
     15 
     16 #include "trousers/tss.h"
     17 #include "trousers/trousers.h"
     18 #include "trousers_types.h"
     19 #include "spi_utils.h"
     20 #include "capabilities.h"
     21 #include "tsplog.h"
     22 #include "obj.h"
     23 
     24 
     25 #ifdef TSS_BUILD_TRANSPORT
     26 TSS_RESULT
     27 Transport_SelfTestFull(TSS_HCONTEXT tspContext)
     28 {
     29 	TSS_RESULT result;
     30 	TCS_HANDLE handlesLen = 0;
     31 
     32 	if ((result = obj_context_transport_init(tspContext)))
     33 		return result;
     34 
     35 	LogDebugFn("Executing in a transport session");
     36 
     37 	return obj_context_transport_execute(tspContext, TPM_ORD_SelfTestFull, 0, NULL, NULL,
     38 					     &handlesLen, NULL, NULL, NULL, NULL, NULL);
     39 }
     40 
     41 TSS_RESULT
     42 Transport_CertifySelfTest(TSS_HCONTEXT tspContext,	/* in */
     43 			  TCS_KEY_HANDLE keyHandle,	/* in */
     44 			  TCPA_NONCE antiReplay,	/* in */
     45 			  TPM_AUTH * privAuth,	/* in, out */
     46 			  UINT32 * sigSize,	/* out */
     47 			  BYTE ** sig)	/* out */
     48 {
     49 	TSS_RESULT result;
     50 	UINT32 handlesLen, decLen = 0;
     51 	BYTE *dec = NULL;
     52 	UINT64 offset;
     53 	TPM_DIGEST pubKeyHash;
     54 	Trspi_HashCtx hashCtx;
     55 	TCS_HANDLE *handles, handle;
     56 
     57 	if ((result = obj_context_transport_init(tspContext)))
     58 		return result;
     59 
     60 	if ((result = obj_tcskey_get_pubkeyhash(keyHandle, pubKeyHash.digest)))
     61 		return result;
     62 
     63 	result = Trspi_HashInit(&hashCtx, TSS_HASH_SHA1);
     64 	result |= Trspi_Hash_DIGEST(&hashCtx, pubKeyHash.digest);
     65 	if ((result |= Trspi_HashFinal(&hashCtx, pubKeyHash.digest)))
     66 		return result;
     67 
     68 	handlesLen = 1;
     69 	handle = keyHandle;
     70 	handles = &handle;
     71 
     72 	LogDebugFn("Executing in a transport session");
     73 
     74 	if ((result = obj_context_transport_execute(tspContext, TPM_ORD_CertifySelfTest,
     75 						    sizeof(TCPA_NONCE), antiReplay.nonce,
     76 						    &pubKeyHash, &handlesLen, &handles, privAuth,
     77 						    NULL, &decLen, &dec)))
     78 		return result;
     79 
     80 	offset = 0;
     81 	Trspi_UnloadBlob_UINT32(&offset, sigSize, dec);
     82 
     83 	if ((*sig = malloc(*sigSize)) == NULL) {
     84 		free(dec);
     85 		LogError("malloc of %u bytes failed", *sigSize);
     86 		*sigSize = 0;
     87 		return TSPERR(TSS_E_OUTOFMEMORY);
     88 	}
     89 	Trspi_UnloadBlob(&offset, *sigSize, dec, *sig);
     90 
     91 	free(dec);
     92 
     93 	return result;
     94 }
     95 
     96 TSS_RESULT
     97 Transport_GetTestResult(TSS_HCONTEXT tspContext,	/* in */
     98 			UINT32 * outDataSize,	/* out */
     99 			BYTE ** outData)	/* out */
    100 {
    101 	TSS_RESULT result;
    102 	UINT32 decLen = 0;
    103 	BYTE *dec = NULL;
    104 	UINT64 offset;
    105 	TCS_HANDLE handlesLen = 0;
    106 
    107 	if ((result = obj_context_transport_init(tspContext)))
    108 		return result;
    109 
    110 	LogDebugFn("Executing in a transport session");
    111 
    112 	if ((result = obj_context_transport_execute(tspContext, TPM_ORD_GetTestResult, 0, NULL,
    113 						    NULL, &handlesLen, NULL, NULL, NULL, &decLen,
    114 						    &dec)))
    115 		return result;
    116 
    117 	offset = 0;
    118 	Trspi_UnloadBlob_UINT32(&offset, outDataSize, dec);
    119 
    120 	if ((*outData = malloc(*outDataSize)) == NULL) {
    121 		free(dec);
    122 		LogError("malloc of %u bytes failed", *outDataSize);
    123 		*outDataSize = 0;
    124 		return TSPERR(TSS_E_OUTOFMEMORY);
    125 	}
    126 	Trspi_UnloadBlob(&offset, *outDataSize, dec, *outData);
    127 
    128 	free(dec);
    129 
    130 	return result;
    131 }
    132 #endif
    133