Merge tag 'for_upstream' of git://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging
[qemu.git] / include / sysemu / tpm_util.h
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 2.1 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 */
21
22 #ifndef SYSEMU_TPM_UTIL_H
23 #define SYSEMU_TPM_UTIL_H
24
25 #include "sysemu/tpm.h"
26 #include "qemu/bswap.h"
27
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
32 int tpm_util_test_tpmdev(int tpm_fd, TPMVersion *tpm_version);
33
34 static inline uint16_t tpm_cmd_get_tag(const void *b)
35 {
36 return lduw_be_p(b);
37 }
38
39 static inline void tpm_cmd_set_tag(void *b, uint16_t tag)
40 {
41 stw_be_p(b, tag);
42 }
43
44 static inline uint32_t tpm_cmd_get_size(const void *b)
45 {
46 return ldl_be_p(b + 2);
47 }
48
49 static inline void tpm_cmd_set_size(void *b, uint32_t size)
50 {
51 stl_be_p(b + 2, size);
52 }
53
54 static inline uint32_t tpm_cmd_get_ordinal(const void *b)
55 {
56 return ldl_be_p(b + 6);
57 }
58
59 static inline uint32_t tpm_cmd_get_errcode(const void *b)
60 {
61 return ldl_be_p(b + 6);
62 }
63
64 static inline void tpm_cmd_set_error(void *b, uint32_t error)
65 {
66 stl_be_p(b + 6, error);
67 }
68
69 void tpm_util_show_buffer(const unsigned char *buffer,
70 size_t buffer_size, const char *string);
71
72 #endif /* SYSEMU_TPM_UTIL_H */