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56a3c24f SB |
1 | /* |
2 | * TPM utility functions | |
3 | * | |
4 | * Copyright (c) 2010 - 2015 IBM Corporation | |
5 | * Authors: | |
6 | * Stefan Berger <stefanb@us.ibm.com> | |
7 | * | |
8 | * This library is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License as published by the Free Software Foundation; either | |
11 | * version 2 of the License, or (at your option) any later version. | |
12 | * | |
13 | * This library is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * Lesser General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU Lesser General Public | |
19 | * License along with this library; if not, see <http://www.gnu.org/licenses/> | |
20 | */ | |
121d0712 MA |
21 | |
22 | #ifndef TPM_TPM_UTIL_H | |
23 | #define TPM_TPM_UTIL_H | |
56a3c24f | 24 | |
5cf954d0 MAL |
25 | #include "sysemu/tpm.h" |
26 | #include "qemu/bswap.h" | |
56a3c24f | 27 | |
4a3d8098 AV |
28 | void tpm_util_write_fatal_error_response(uint8_t *out, uint32_t out_len); |
29 | ||
30 | bool tpm_util_is_selftest(const uint8_t *in, uint32_t in_len); | |
31 | ||
56a3c24f SB |
32 | int tpm_util_test_tpmdev(int tpm_fd, TPMVersion *tpm_version); |
33 | ||
cc1b6c55 MAL |
34 | static inline uint16_t tpm_cmd_get_tag(const void *b) |
35 | { | |
36 | return lduw_be_p(b); | |
37 | } | |
38 | ||
5cf954d0 MAL |
39 | static inline uint32_t tpm_cmd_get_size(const void *b) |
40 | { | |
cc1b6c55 MAL |
41 | return ldl_be_p(b + 2); |
42 | } | |
43 | ||
44 | static inline uint32_t tpm_cmd_get_ordinal(const void *b) | |
45 | { | |
46 | return ldl_be_p(b + 6); | |
47 | } | |
48 | ||
49 | static inline uint32_t tpm_cmd_get_errcode(const void *b) | |
50 | { | |
51 | return ldl_be_p(b + 6); | |
5cf954d0 MAL |
52 | } |
53 | ||
abc5cda0 SB |
54 | int tpm_util_get_buffer_size(int tpm_fd, TPMVersion tpm_version, |
55 | size_t *buffersize); | |
56 | ||
89be9e99 CH |
57 | #define DEFINE_PROP_TPMBE(_n, _s, _f) \ |
58 | DEFINE_PROP(_n, _s, _f, qdev_prop_tpm, TPMBackend *) | |
59 | ||
b86da7dd SB |
60 | typedef struct TPMSizedBuffer { |
61 | uint32_t size; | |
62 | uint8_t *buffer; | |
63 | } TPMSizedBuffer; | |
64 | ||
65 | void tpm_sized_buffer_reset(TPMSizedBuffer *tsb); | |
66 | ||
121d0712 | 67 | #endif /* TPM_TPM_UTIL_H */ |