1 /* Microsoft Reference Implementation for TPM 2.0
2  *
3  *  The copyright in this software is being made available under the BSD License,
4  *  included below. This software may be subject to other third party and
5  *  contributor rights, including patent rights, and no such rights are granted
6  *  under this license.
7  *
8  *  Copyright (c) Microsoft Corporation
9  *
10  *  All rights reserved.
11  *
12  *  BSD License
13  *
14  *  Redistribution and use in source and binary forms, with or without modification,
15  *  are permitted provided that the following conditions are met:
16  *
17  *  Redistributions of source code must retain the above copyright notice, this list
18  *  of conditions and the following disclaimer.
19  *
20  *  Redistributions in binary form must reproduce the above copyright notice, this
21  *  list of conditions and the following disclaimer in the documentation and/or
22  *  other materials provided with the distribution.
23  *
24  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ""AS IS""
25  *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
27  *  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
28  *  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29  *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30  *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
31  *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34  */
35 //
36 // This file contains extra TPM2B structures
37 //
38 
39 #ifndef _TPMB_H
40 #define _TPMB_H
41 
42 // TPM2B Types
43 typedef struct {
44     UINT16          size;
45     BYTE            buffer[1];
46 } TPM2B, *P2B;
47 typedef const TPM2B     *PC2B;
48 
49 // This macro helps avoid having to type in the structure in order to create
50 // a new TPM2B type that is used in a function.
51 #define TPM2B_TYPE(name, bytes)             \
52     typedef union {                         \
53         struct  {                           \
54             UINT16  size;                   \
55             BYTE    buffer[(bytes)];        \
56         } t;                                \
57         TPM2B   b;                          \
58     } TPM2B_##name
59 
60 // This macro defines a TPM2B with a constant character value. This macro
61 // sets the size of the string to the size minus the terminating zero byte.
62 // This lets the user of the label add their terminating 0. This method
63 // is chosen so that existing code that provides a label will continue
64 // to work correctly.
65 
66 // Macro to instance and initialize a TPM2B value
67 #define TPM2B_INIT(TYPE, name)  \
68     TPM2B_##TYPE    name = {sizeof(name.t.buffer), {0}}
69 
70 #define TPM2B_BYTE_VALUE(bytes) TPM2B_TYPE(bytes##_BYTE_VALUE, bytes)
71 
72 
73 #endif
74