xref: /openbmc/qemu/backends/tpm/tpm_int.h (revision 2b74dd91)
1 /*
2  * TPM configuration
3  *
4  * Copyright (C) 2011-2013 IBM Corporation
5  *
6  * Authors:
7  *  Stefan Berger    <stefanb@us.ibm.com>
8  *
9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
10  * See the COPYING file in the top-level directory.
11  */
12 #ifndef BACKENDS_TPM_INT_H
13 #define BACKENDS_TPM_INT_H
14 
15 #include "qemu/option.h"
16 #include "sysemu/tpm.h"
17 
18 #define TPM_STANDARD_CMDLINE_OPTS \
19     { \
20         .name = "type", \
21         .type = QEMU_OPT_STRING, \
22         .help = "Type of TPM backend", \
23     }
24 
25 struct tpm_req_hdr {
26     uint16_t tag;
27     uint32_t len;
28     uint32_t ordinal;
29 } QEMU_PACKED;
30 
31 struct tpm_resp_hdr {
32     uint16_t tag;
33     uint32_t len;
34     uint32_t errcode;
35 } QEMU_PACKED;
36 
37 #define TPM_TAG_RQU_COMMAND       0xc1
38 #define TPM_TAG_RQU_AUTH1_COMMAND 0xc2
39 #define TPM_TAG_RQU_AUTH2_COMMAND 0xc3
40 
41 #define TPM_TAG_RSP_COMMAND       0xc4
42 #define TPM_TAG_RSP_AUTH1_COMMAND 0xc5
43 #define TPM_TAG_RSP_AUTH2_COMMAND 0xc6
44 
45 #define TPM_BAD_PARAMETER         3
46 #define TPM_FAIL                  9
47 #define TPM_KEYNOTFOUND           13
48 #define TPM_BAD_PARAM_SIZE        25
49 #define TPM_ENCRYPT_ERROR         32
50 #define TPM_DECRYPT_ERROR         33
51 #define TPM_BAD_KEY_PROPERTY      40
52 #define TPM_BAD_MODE              44
53 #define TPM_BAD_VERSION           46
54 #define TPM_BAD_LOCALITY          61
55 
56 #define TPM_ORD_ContinueSelfTest  0x53
57 #define TPM_ORD_GetTicks          0xf1
58 #define TPM_ORD_GetCapability     0x65
59 
60 #define TPM_CAP_PROPERTY          0x05
61 
62 #define TPM_CAP_PROP_INPUT_BUFFER 0x124
63 
64 /* TPM2 defines */
65 #define TPM2_ST_NO_SESSIONS       0x8001
66 
67 #define TPM2_CC_ReadClock         0x00000181
68 #define TPM2_CC_GetCapability     0x0000017a
69 
70 #define TPM2_CAP_TPM_PROPERTIES   0x6
71 
72 #define TPM2_PT_MAX_COMMAND_SIZE  0x11e
73 
74 #define TPM_RC_INSUFFICIENT       0x9a
75 #define TPM_RC_FAILURE            0x101
76 #define TPM_RC_LOCALITY           0x907
77 
78 int tpm_util_get_buffer_size(int tpm_fd, TPMVersion tpm_version,
79                              size_t *buffersize);
80 
81 typedef struct TPMSizedBuffer {
82     uint32_t size;
83     uint8_t  *buffer;
84 } TPMSizedBuffer;
85 
86 void tpm_sized_buffer_reset(TPMSizedBuffer *tsb);
87 
88 #endif /* BACKENDS_TPM_INT_H */
89