1Tspi_TPM_DirRead(3) Library Functions Manual Tspi_TPM_DirRead(3)
2
3
4
5 TCG Software Stack Developer's Reference
6
8 Tspi_TPM_DirRead - Read a Data Integrity Register
9
11 #include <tss/platform.h>
12 #include <tss/tcpa_defines.h>
13 #include <tss/tcpa_typedef.h>
14 #include <tss/tcpa_struct.h>
15 #include <tss/tss_typedef.h>
16 #include <tss/tss_structs.h>
17 #include <tss/tspi.h>
18
19 TSS_RESULT Tspi_TPM_DirRead(TSS_HTPM hTPM, UINT32 ulDirIndex,
20 UINT32* pulDirDataLength, BYTE** prgbDirData);
21
22
23
25 Tspi_TPM_DirRead reads a data integrity register. DIRs are non-volatile
26 (persistent across reboots) memory areas maintained by the TPM.
27
28
30 hTPM
31 The hTPM parameter is used to specify the handle of the TPM object.
32
33 ulDirIndex
34 The ulDirIndex parameter is the index of the DIR to read. To query the
35 TPM for the number of DIR registers it supports, use Tspi_TPM_GetCapa‐
36 bility(3).
37
38 pulDirDataLength
39 The pulDirDataLength parameter receives the length in bytes of the
40 prgbDirData parameter.
41
42 prgbDirData
43 The prgbDirData parameter receives a pointer to memory containing the
44 DIR data.
45
46
48 Tspi_TPM_DirRead returns TSS_SUCCESS on success, otherwise one of the
49 following values is returned:
50
51 TSS_E_INVALID_HANDLE
52 hTPM is not a valid handle.
53
54
55 TSS_E_INTERNAL_ERROR
56 An internal SW error has been detected.
57
58
59 TSS_E_BAD_PARAMETER
60 One or more parameters is bad.
61
62
64 Tspi_TPM_DirRead conforms to the Trusted Computing Group Software Spec‐
65 ification version 1.1 Golden
66
67
69 Tspi_TPM_GetCapability(3), Tspi_TPM_DirWrite(3).
70
71
72
73
74TSS 1.1 2004-05-25 Tspi_TPM_DirRead(3)