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
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
|
/*
0xFFFF - Open Free Fiasco Firmware Flasher
Copyright (C) 2012 Pali Rohár <pali.rohar@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <fcntl.h>
#include <libgen.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/statvfs.h>
#include <linux/fs.h>
#include "disk.h"
#include "global.h"
#include "image.h"
#include "device.h"
#include "usb-device.h"
#include "printf-utils.h"
static char global_buf[1 << 22]; /* 4MB */
int disk_open_dev(int maj, int min, int partition, int readonly) {
int fd;
struct stat st;
DIR * dir;
struct dirent * dirent;
int found;
size_t len;
char blkdev[1024];
dir = opendir("/dev/");
if ( ! dir ) {
ERROR_INFO("Cannot open '/dev/' directory");
return -1;
}
found = 0;
while ( ( dirent = readdir(dir) ) ) {
if ( strncmp(dirent->d_name, ".", sizeof(".")) == 0 || strncmp(dirent->d_name, "..", sizeof("..")) == 0 )
continue;
if ( snprintf(blkdev, sizeof(blkdev), "/dev/%s", dirent->d_name) <= 0 )
continue;
if ( stat(blkdev, &st) != 0 )
continue;
if ( ! S_ISBLK(st.st_mode) )
continue;
if ( makedev(maj, min) != st.st_rdev )
continue;
found = 1;
break;
}
closedir(dir);
if ( ! found ) {
ERROR("Cannot find block device with id %d:%d", maj, min);
return -1;
}
printf("Found block device %s with id %d:%d\n", blkdev, maj, min);
if ( partition == -1 ) {
/* Check if block device does not have partitions */
len = strlen(blkdev);
if ( sizeof(blkdev) <= len+2 ) {
ERROR("Block device name is too long");
return -1;
}
memcpy(blkdev+len, "p1", 3);
if ( stat(blkdev, &st) == 0 ) {
ERROR("Block device has partitions");
return -1;
}
memcpy(blkdev+len, "1", 2);
if ( stat(blkdev, &st) == 0 ) {
ERROR("Block device has partitions");
return -1;
}
blkdev[len] = 0;
} else if ( partition > 0 ) {
/* Select partition */
len = strlen(blkdev);
if ( sizeof(blkdev) <= len+2 ) {
ERROR("Block device name is too long");
return -1;
}
memcpy(blkdev+len, "p1", 3);
if ( stat(blkdev, &st) != 0 || ! S_ISBLK(st.st_mode) ) {
memcpy(blkdev+len, "1", 2);
if ( stat(blkdev, &st) != 0 || ! S_ISBLK(st.st_mode) ) {
ERROR("Block device has partitions");
return -1;
}
}
printf("Found block device %s for partition %d\n", blkdev, partition);
}
fd = open(blkdev, (readonly ? O_RDONLY : O_RDWR) | O_EXCL);
if ( fd < 0 ) {
ERROR_INFO("Cannot open block device %s", blkdev);
return -1;
}
return fd;
}
int disk_dump_dev(int fd, const char * file) {
int fd2;
int ret;
char * path;
uint64_t blksize;
size_t need, readed;
ssize_t size;
struct statvfs buf;
printf("Dump block device to file %s...\n", file);
if ( ioctl(fd, BLKGETSIZE64, &blksize) != 0 ) {
ERROR_INFO("Cannot get size of block device");
return -1;
}
if ( blksize > ULLONG_MAX ) {
ERROR("Block device is too big");
return -1;
}
if ( blksize == 0 ) {
ERROR("Block device has zero size");
return -1;
}
path = strdup(file);
if ( ! path ) {
ALLOC_ERROR();
return -1;
}
ret = statvfs(dirname(path), &buf);
free(path);
if ( ret == 0 && buf.f_bsize * buf.f_bfree < blksize ) {
ERROR("Not enough free space (have: %llu, need: %llu)", (unsigned long long int)(buf.f_bsize) * buf.f_bfree, (unsigned long long int)blksize);
return -1;
}
fd2 = creat(file, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
if ( fd2 < 0 ) {
ERROR_INFO("Cannot create file %s", file);
return -1;
}
readed = 0;
printf_progressbar(0, blksize);
while ( readed < blksize ) {
need = blksize - readed;
if ( need > sizeof(global_buf) )
need = sizeof(global_buf);
size = read(fd, global_buf, need);
if ( size == 0 )
break;
if ( write(fd2, global_buf, size) != size ) {
PRINTF_ERROR("Dumping image failed");
close(fd2);
return -1;
}
readed += size;
printf_progressbar(readed, blksize);
}
close(fd2);
return 0;
}
int disk_flash_dev(int fd, const char * file) {
ERROR("Not implemented yet");
(void)fd;
(void)file;
return -1;
}
int disk_init(struct usb_device_info * dev) {
(void)dev;
return 0;
}
enum device disk_get_device(struct usb_device_info * dev) {
return dev->device;
}
int disk_flash_image(struct usb_device_info * dev, struct image * image) {
ERROR("Not implemented yet");
(void)dev;
(void)image;
return -1;
}
int disk_dump_image(struct usb_device_info * dev, enum image_type image, const char * file) {
ERROR("Not implemented yet");
(void)dev;
(void)image;
(void)file;
return -1;
}
int disk_check_badblocks(struct usb_device_info * dev, const char * device) {
ERROR("Not implemented yet");
(void)dev;
(void)device;
return -1;
}
|
