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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Tests for firmware vboot_common.c
*/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "2common.h"
#include "host_common.h"
#include "test_common.h"
#include "utility.h"
#include "vboot_common.h"
/*
* Test struct packing for vboot_struct.h structs which are passed between
* firmware and OS, or passed between different phases of firmware.
*/
static void StructPackingTest(void)
{
TEST_EQ(EXPECTED_VBSIGNATURE_SIZE, sizeof(VbSignature),
"sizeof(VbSignature)");
TEST_EQ(EXPECTED_VBKEYBLOCKHEADER_SIZE, sizeof(VbKeyBlockHeader),
"sizeof(VbKeyBlockHeader)");
TEST_EQ(EXPECTED_VBKERNELPREAMBLEHEADER2_2_SIZE,
sizeof(VbKernelPreambleHeader),
"sizeof(VbKernelPreambleHeader)");
TEST_EQ(VB_SHARED_DATA_HEADER_SIZE_V1,
(long)&((VbSharedDataHeader*)NULL)->recovery_reason,
"sizeof(VbSharedDataHeader) V1");
TEST_EQ(VB_SHARED_DATA_HEADER_SIZE_V2,
sizeof(VbSharedDataHeader),
"sizeof(VbSharedDataHeader) V2");
}
/* Helper functions not dependent on specific key sizes */
static void VerifyHelperFunctions(void)
{
{
VbSignature s = {sizeof(s), 128, 2000};
TEST_EQ(VerifySignatureInside(&s, sizeof(s)+128, &s), 0,
"SignatureInside ok 1");
TEST_EQ(VerifySignatureInside(&s - 1, 2*sizeof(s)+128, &s), 0,
"SignatureInside ok 2");
TEST_NEQ(VerifySignatureInside(&s, 128, &s), 0,
"SignatureInside sig too big");
}
{
VbSignature s = {100, 4, 0};
TEST_NEQ(VerifySignatureInside(&s, 99, &s), 0,
"SignatureInside offset too big");
}
}
/* Public key utility functions */
static void PublicKeyTest(void)
{
struct vb2_packed_key k[3];
struct vb2_packed_key j[5];
/* Fill some bits of the public key data */
memset(j, 0, sizeof(j));
memset(k, 0x42, sizeof(k));
k[1].key_size = 12345;
k[2].key_version = 67;
PublicKeyInit(k, (uint8_t*)(k + 1), 2 * sizeof(struct vb2_packed_key));
TEST_EQ(k->key_offset, sizeof(struct vb2_packed_key),
"PublicKeyInit key_offset");
TEST_EQ(k->key_size, 2 * sizeof(struct vb2_packed_key),
"PublicKeyInit key_size");
TEST_EQ(k->algorithm, VB2_ALG_COUNT, "PublicKeyInit algorithm");
TEST_EQ(k->key_version, 0, "PublicKeyInit key_version");
/* Set algorithm and version, so we can tell if they get copied */
k->algorithm = 3;
k->key_version = 21;
/* Copying to a smaller destination should fail */
PublicKeyInit(j, (uint8_t*)(j + 1),
2 * sizeof(struct vb2_packed_key) - 1);
TEST_NEQ(0, PublicKeyCopy(j, k), "PublicKeyCopy too small");
/* Copying to same or larger size should succeed */
PublicKeyInit(j, (uint8_t*)(j + 2),
2 * sizeof(struct vb2_packed_key) + 1);
TEST_EQ(0, PublicKeyCopy(j, k), "PublicKeyCopy same");
/* Offset in destination shouldn't have been modified */
TEST_EQ(j->key_offset, 2 * sizeof(struct vb2_packed_key),
"PublicKeyCopy key_offset");
/* Size should have been reduced to match the source */
TEST_EQ(k->key_size, 2 * sizeof(struct vb2_packed_key),
"PublicKeyCopy key_size");
/* Other fields should have been copied */
TEST_EQ(k->algorithm, j->algorithm, "PublicKeyCopy algorithm");
TEST_EQ(k->key_version, j->key_version, "PublicKeyCopy key_version");
/* Data should have been copied */
TEST_EQ(0,
memcmp(GetPublicKeyData(k), GetPublicKeyData(j), k->key_size),
"PublicKeyCopy data");
}
/* VbSharedData utility tests */
static void VbSharedDataTest(void)
{
uint8_t buf[VB_SHARED_DATA_MIN_SIZE + 1];
VbSharedDataHeader* d = (VbSharedDataHeader*)buf;
TEST_NEQ(VBOOT_SUCCESS,
VbSharedDataInit(d, sizeof(VbSharedDataHeader) - 1),
"VbSharedDataInit too small");
TEST_NEQ(VBOOT_SUCCESS,
VbSharedDataInit(d, VB_SHARED_DATA_MIN_SIZE - 1),
"VbSharedDataInit too small 2");
TEST_NEQ(VBOOT_SUCCESS,
VbSharedDataInit(NULL, VB_SHARED_DATA_MIN_SIZE),
"VbSharedDataInit null");
memset(buf, 0x68, sizeof(buf));
TEST_EQ(VBOOT_SUCCESS, VbSharedDataInit(d, VB_SHARED_DATA_MIN_SIZE),
"VbSharedDataInit");
/* Check fields that should have been initialized */
TEST_EQ(d->magic, VB_SHARED_DATA_MAGIC, "VbSharedDataInit magic");
TEST_EQ(d->struct_version, VB_SHARED_DATA_VERSION,
"VbSharedDataInit version");
TEST_EQ(d->struct_size, sizeof(VbSharedDataHeader),
"VbSharedDataInit struct_size");
TEST_EQ(d->data_size, VB_SHARED_DATA_MIN_SIZE,
"VbSharedDataInit data_size");
TEST_EQ(d->data_used, d->struct_size, "VbSharedDataInit data_used");
TEST_EQ(d->firmware_index, 0xFF, "VbSharedDataInit firmware index");
/* Sample some other fields to make sure they were zeroed */
TEST_EQ(d->flags, 0, "VbSharedDataInit firmware flags");
TEST_EQ(d->lk_call_count, 0, "VbSharedDataInit lk_call_count");
TEST_EQ(d->kernel_version_lowest, 0,
"VbSharedDataInit kernel_version_lowest");
TEST_EQ(VBOOT_SHARED_DATA_INVALID, VbSharedDataSetKernelKey(NULL, NULL),
"VbSharedDataSetKernelKey sd null");
TEST_EQ(VBOOT_PUBLIC_KEY_INVALID, VbSharedDataSetKernelKey(d, NULL),
"VbSharedDataSetKernelKey pubkey null");
}
int main(int argc, char* argv[])
{
StructPackingTest();
VerifyHelperFunctions();
PublicKeyTest();
VbSharedDataTest();
return gTestSuccess ? 0 : 255;
}
|
