1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/*
* Copyright (C) 2017 The Android Open Source Project
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <trusty/keymaster_serializable.h>
uint8_t *append_to_buf(uint8_t *buf, const void *data, size_t data_len)
{
if (data && data_len) {
trusty_memcpy(buf, data, data_len);
}
return buf + data_len;
}
uint8_t *append_uint32_to_buf(uint8_t *buf, uint32_t val)
{
return append_to_buf(buf, &val, sizeof(val));
}
uint8_t *append_sized_buf_to_buf(uint8_t *buf, const uint8_t *data,
uint32_t data_len)
{
buf = append_uint32_to_buf(buf, data_len);
return append_to_buf(buf, data, data_len);
}
int km_boot_params_serialize(const struct km_boot_params *params, uint8_t** out,
uint32_t *out_size)
{
uint8_t *tmp;
if (!out || !params || !out_size) {
return TRUSTY_ERR_INVALID_ARGS;
}
*out_size = (sizeof(params->os_version) + sizeof(params->os_patchlevel) +
sizeof(params->device_locked) +
sizeof(params->verified_boot_state) +
sizeof(params->verified_boot_key_hash_size) +
sizeof(params->verified_boot_hash_size) +
params->verified_boot_key_hash_size +
params->verified_boot_hash_size);
*out = trusty_calloc(*out_size, 1);
if (!*out) {
return TRUSTY_ERR_NO_MEMORY;
}
tmp = append_uint32_to_buf(*out, params->os_version);
tmp = append_uint32_to_buf(tmp, params->os_patchlevel);
tmp = append_uint32_to_buf(tmp, params->device_locked);
tmp = append_uint32_to_buf(tmp, params->verified_boot_state);
tmp = append_sized_buf_to_buf(tmp, params->verified_boot_key_hash,
params->verified_boot_key_hash_size);
tmp = append_sized_buf_to_buf(tmp, params->verified_boot_hash,
params->verified_boot_hash_size);
return TRUSTY_ERR_NONE;
}
int km_attestation_data_serialize(const struct km_attestation_data *data,
uint8_t** out, uint32_t *out_size)
{
uint8_t *tmp;
if (!out || !data || !out_size) {
return TRUSTY_ERR_INVALID_ARGS;
}
*out_size = (sizeof(data->algorithm) + sizeof(data->data_size) +
data->data_size);
*out = trusty_calloc(*out_size, 1);
if (!*out) {
return TRUSTY_ERR_NO_MEMORY;
}
tmp = append_uint32_to_buf(*out, data->algorithm);
tmp = append_sized_buf_to_buf(tmp, data->data, data->data_size);
return TRUSTY_ERR_NONE;
}
int km_secure_unlock_data_serialize(const struct km_secure_unlock_data *data,
uint8_t** out, uint32_t *out_size)
{
uint8_t *tmp;
if (!out || !data || !out_size) {
return TRUSTY_ERR_INVALID_ARGS;
}
*out_size = (sizeof(data->serial_size) + sizeof(data->credential_size) +
data->serial_size + data->credential_size);
*out = trusty_calloc(*out_size, 1);
if (!*out) {
return TRUSTY_ERR_NO_MEMORY;
}
tmp = append_sized_buf_to_buf(*out, data->serial_data, data->serial_size);
tmp = append_sized_buf_to_buf(tmp, data->credential_data, data->credential_size);
return TRUSTY_ERR_NONE;
}
int km_raw_buffer_serialize(const struct km_raw_buffer *buf, uint8_t** out,
uint32_t *out_size)
{
if (!out || !buf || !out_size) {
return TRUSTY_ERR_INVALID_ARGS;
}
*out_size = sizeof(buf->data_size) + buf->data_size;
*out = trusty_calloc(*out_size, 1);
if (!*out) {
return TRUSTY_ERR_NO_MEMORY;
}
append_sized_buf_to_buf(*out, buf->data, buf->data_size);
return TRUSTY_ERR_NONE;
}
|
