xref: /netbsd-src/crypto/external/cpl/trousers/dist/src/tspi/tspi_caps.c (revision 2d5f7628c5531eb583b9313ac2fd1cf8582b4479)
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. 2004-2006
8  *
9  */
10 
11 
12 #include <stdlib.h>
13 #include <stdio.h>
14 #include <string.h>
15 
16 #include "trousers/tss.h"
17 #include "trousers/trousers.h"
18 #include "trousers_types.h"
19 #include "trousers_types.h"
20 #include "spi_utils.h"
21 #include "capabilities.h"
22 #include "tsplog.h"
23 #include "tcs_tsp.h"
24 #include "tspps.h"
25 #include "tcsd_wrap.h"
26 #include "tcsd.h"
27 #include "obj.h"
28 
29 
30 TSS_RESULT
Tspi_Context_GetCapability(TSS_HCONTEXT tspContext,TSS_FLAG capArea,UINT32 ulSubCapLength,BYTE * rgbSubCap,UINT32 * pulRespDataLength,BYTE ** prgbRespData)31 Tspi_Context_GetCapability(TSS_HCONTEXT tspContext,	/* in */
32 			   TSS_FLAG capArea,		/* in */
33 			   UINT32 ulSubCapLength,	/* in */
34 			   BYTE * rgbSubCap,		/* in */
35 			   UINT32 * pulRespDataLength,	/* out */
36 			   BYTE ** prgbRespData)	/* out */
37 {
38 	TSS_RESULT result;
39 
40 	if (prgbRespData == NULL || pulRespDataLength == NULL )
41 		return TSPERR(TSS_E_BAD_PARAMETER);
42 
43 	if (rgbSubCap == NULL && ulSubCapLength != 0)
44 		return TSPERR(TSS_E_BAD_PARAMETER);
45 
46 	if (ulSubCapLength > sizeof(UINT32))
47 		return TSPERR(TSS_E_BAD_PARAMETER);
48 
49 	if (!obj_is_context(tspContext))
50 		return TSPERR(TSS_E_INVALID_HANDLE);
51 
52 	switch (capArea) {
53 		case TSS_TSPCAP_ALG:
54 		case TSS_TSPCAP_RETURNVALUE_INFO:
55 		case TSS_TSPCAP_PLATFORM_INFO:
56 		case TSS_TSPCAP_MANUFACTURER:
57 			if (ulSubCapLength != sizeof(UINT32) || !rgbSubCap)
58 				return TSPERR(TSS_E_BAD_PARAMETER);
59 			/* fall through */
60 		case TSS_TSPCAP_VERSION:
61 		case TSS_TSPCAP_PERSSTORAGE:
62 			result = internal_GetCap(tspContext, capArea,
63 						 rgbSubCap ? *(UINT32 *)rgbSubCap : 0,
64 						 pulRespDataLength,
65 						 prgbRespData);
66 			break;
67 		case TSS_TCSCAP_ALG:
68 			if (ulSubCapLength != sizeof(UINT32) || !rgbSubCap)
69 				return TSPERR(TSS_E_BAD_PARAMETER);
70 			/* fall through */
71 		case TSS_TCSCAP_VERSION:
72 		case TSS_TCSCAP_CACHING:
73 		case TSS_TCSCAP_PERSSTORAGE:
74 		case TSS_TCSCAP_MANUFACTURER:
75 		case TSS_TCSCAP_TRANSPORT:
76 		case TSS_TCSCAP_PLATFORM_CLASS:
77 			result = RPC_GetCapability(tspContext, capArea, ulSubCapLength, rgbSubCap,
78 						   pulRespDataLength, prgbRespData);
79 			break;
80 		default:
81 			LogDebug("Invalid capArea: 0x%x", capArea);
82 			result = TSPERR(TSS_E_BAD_PARAMETER);
83 			break;
84 	}
85 
86 	return result;
87 }
88