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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
/* Copyright (c) 2011 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 vboot region API
*/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "bmpblk_font.h"
#include "gbb_header.h"
#include "host_common.h"
#include "rollback_index.h"
#include "test_common.h"
#include "vboot_common.h"
#include "vboot_nvstorage.h"
#include "vboot_struct.h"
/* Mock data */
static VbCommonParams cparams;
static VbNvContext vnc;
static VbSelectFirmwareParams fparams;
VbSelectAndLoadKernelParams kparams;
static char gbb_data[4096 + sizeof(GoogleBinaryBlockHeader)];
static uint8_t shared_data[VB_SHARED_DATA_MIN_SIZE];
static VbSharedDataHeader* shared = (VbSharedDataHeader*)shared_data;
/* Mock TPM versions */
static uint32_t mock_tpm_version;
static uint32_t mock_lf_tpm_version; /* TPM version set by LoadFirmware() */
static uint32_t mock_seen_region;
/* Mock return values, so we can simulate errors */
static VbError_t mock_lf_retval;
#define COMPRESSED_SIZE 200
#define ORIGINAL_SIZE 400
/* Reset mock data (for use before each test) */
static void ResetMocks(void) {
GoogleBinaryBlockHeader *gbb;
BmpBlockHeader *bhdr;
ImageInfo *image_info;
ScreenLayout *layout;
int gbb_used;
Memset(&vnc, 0, sizeof(vnc));
VbNvSetup(&vnc);
VbNvTeardown(&vnc); /* So CRC gets generated */
Memset(&cparams, 0, sizeof(cparams));
cparams.shared_data_size = sizeof(shared_data);
cparams.shared_data_blob = shared_data;
Memset(&fparams, 0, sizeof(fparams));
Memset(gbb_data, 0, sizeof(gbb_data));
gbb = (GoogleBinaryBlockHeader *)gbb_data;
gbb->major_version = GBB_MAJOR_VER;
gbb->minor_version = GBB_MINOR_VER;
gbb->flags = 0;
gbb_used = sizeof(GoogleBinaryBlockHeader);
gbb->hwid_offset = gbb_used;
strcpy(gbb_data + gbb->hwid_offset, "Test HWID");
gbb->hwid_size = strlen(gbb_data + gbb->hwid_offset) + 1;
gbb_used = (gbb_used + gbb->hwid_size + 7) & ~7;
gbb->bmpfv_offset = gbb_used;
bhdr = (BmpBlockHeader *)(gbb_data + gbb->bmpfv_offset);
gbb->bmpfv_size = sizeof(BmpBlockHeader);
gbb_used = (gbb_used + gbb->bmpfv_size + 7) & ~7;
memcpy(bhdr->signature, BMPBLOCK_SIGNATURE, BMPBLOCK_SIGNATURE_SIZE);
bhdr->major_version = BMPBLOCK_MAJOR_VERSION;
bhdr->minor_version = BMPBLOCK_MINOR_VERSION;
bhdr->number_of_localizations = 3;
bhdr->number_of_screenlayouts = 1;
layout = (ScreenLayout *)(gbb_data + gbb_used);
gbb_used += sizeof(*layout);
layout->images[0].x = 1;
layout->images[0].image_info_offset = gbb_used - gbb->bmpfv_offset;
/* First image is uncompressed */
image_info = (ImageInfo *)(gbb_data + gbb_used);
image_info->format = FORMAT_BMP;
image_info->compressed_size = ORIGINAL_SIZE;
image_info->original_size = ORIGINAL_SIZE;
image_info->compression = COMPRESS_NONE;
gbb_used += sizeof(*image_info);
strcpy(gbb_data + gbb_used, "original");
gbb_used += ORIGINAL_SIZE;
/* Second image is compressed */
layout->images[1].image_info_offset = gbb_used - gbb->bmpfv_offset;
layout->images[1].x = 2;
image_info = (ImageInfo *)(gbb_data + gbb_used);
image_info->format = FORMAT_BMP;
image_info->compressed_size = COMPRESSED_SIZE;
image_info->original_size = ORIGINAL_SIZE;
image_info->compression = COMPRESS_LZMA1;
gbb_used += sizeof(*image_info) + COMPRESSED_SIZE;
Memset(&shared_data, 0, sizeof(shared_data));
VbSharedDataInit(shared, sizeof(shared_data));
shared->fw_keyblock_flags = 0xABCDE0;
mock_tpm_version = mock_lf_tpm_version = 0x20004;
shared->fw_version_tpm_start = mock_tpm_version;
mock_lf_retval = 0;
mock_seen_region = 0;
}
/****************************************************************************/
/* Mocked verification functions */
uint32_t SetTPMBootModeState(int developer_mode, int recovery_mode,
uint64_t fw_keyblock_flags) {
return VBERROR_SUCCESS;
}
VbError_t VbExNvStorageRead(uint8_t* buf) {
Memcpy(buf, vnc.raw, sizeof(vnc.raw));
return VBERROR_SUCCESS;
}
VbError_t VbExNvStorageWrite(const uint8_t* buf) {
Memcpy(vnc.raw, buf, sizeof(vnc.raw));
return VBERROR_SUCCESS;
}
VbError_t VbExRegionRead(VbCommonParams *cparams,
enum vb_firmware_region region, uint32_t offset,
uint32_t size, void *buf)
{
if (region != VB_REGION_GBB)
return VBERROR_UNSUPPORTED_REGION;
mock_seen_region |= 1 << region;
if (offset + size > sizeof(gbb_data))
return VBERROR_REGION_READ_INVALID;
memcpy(buf, gbb_data + offset, size);
return VBERROR_SUCCESS;
}
VbError_t VbExDisplayImage(uint32_t x, uint32_t y,
void *buffer, uint32_t buffersize)
{
switch (x) {
case 1:
TEST_STR_EQ(buffer, "original", " uncompressed image");
break;
case 2:
TEST_STR_EQ(buffer, "decompressed", " compressed image");
break;
default:
TEST_STR_EQ(buffer, "invalid", " correct image");
break;
}
return VBERROR_SUCCESS;
}
VbError_t VbExDecompress(void *inbuf, uint32_t in_size,
uint32_t compression_type,
void *outbuf, uint32_t *out_size)
{
*out_size = ORIGINAL_SIZE;
strcpy(outbuf, "decompressed");
return VBERROR_SUCCESS;
}
int LoadFirmware(VbCommonParams *cparams, VbSelectFirmwareParams *fparams,
VbNvContext *vnc) {
shared->fw_version_tpm = mock_lf_tpm_version;
TEST_PTR_NEQ(cparams->gbb, NULL, " GBB allocated");
return mock_lf_retval;
}
/****************************************************************************/
static void VbRegionReadTest(void) {
/* Should read GBB */
ResetMocks();
TEST_TRUE(1, "Normal call");
TEST_EQ(VbSelectFirmware(&cparams, &fparams), VBERROR_SUCCESS,
" Success");
TEST_EQ(mock_seen_region, 1 << VB_REGION_GBB, " GBB region");
TEST_PTR_EQ(cparams.gbb, NULL, " GBB free");
ResetMocks();
TEST_EQ(VbSelectAndLoadKernel(&cparams, &kparams),
VBERROR_NO_DISK_FOUND, "Kernel");
TEST_PTR_EQ(cparams.gbb, NULL, " GBB free");
TEST_PTR_EQ(cparams.bmp, NULL, " BMP free");
ResetMocks();
shared->flags |= VBSD_BOOT_DEV_SWITCH_ON;
TEST_EQ(VbSelectAndLoadKernel(&cparams, &kparams),
VBERROR_NO_DISK_FOUND, "Kernel");
}
int main(int argc, char* argv[]) {
int error_code = 0;
VbRegionReadTest();
if (vboot_api_stub_check_memory())
error_code = 255;
if (!gTestSuccess)
error_code = 255;
return error_code;
}
|
