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
|
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2013
*
* Written by Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
*/
#include "imagetool.h"
#include <image.h>
struct image_type_params *imagetool_get_type(int type)
{
struct image_type_params **curr;
INIT_SECTION(image_type);
struct image_type_params **start = __start_image_type;
struct image_type_params **end = __stop_image_type;
for (curr = start; curr != end; curr++) {
if ((*curr)->check_image_type) {
if (!(*curr)->check_image_type(type))
return *curr;
}
}
return NULL;
}
static int imagetool_verify_print_header_by_type(
void *ptr,
struct stat *sbuf,
struct image_type_params *tparams,
struct image_tool_params *params);
int imagetool_verify_print_header(
void *ptr,
struct stat *sbuf,
struct image_type_params *tparams,
struct image_tool_params *params)
{
int retval = -1;
struct image_type_params **curr;
INIT_SECTION(image_type);
struct image_type_params **start = __start_image_type;
struct image_type_params **end = __stop_image_type;
if (tparams)
return imagetool_verify_print_header_by_type(ptr, sbuf, tparams, params);
for (curr = start; curr != end; curr++) {
/*
* Basically every data file can be guessed / verified as gpimage,
* so skip autodetection of data file as gpimage as it does not work.
*/
if ((*curr)->check_image_type && (*curr)->check_image_type(IH_TYPE_GPIMAGE) == 0)
continue;
if ((*curr)->verify_header) {
retval = (*curr)->verify_header((unsigned char *)ptr,
sbuf->st_size, params);
if (retval == 0) {
/*
* Print the image information if verify is
* successful
*/
if ((*curr)->print_header) {
if (!params->quiet)
(*curr)->print_header(ptr, params);
} else {
fprintf(stderr,
"%s: print_header undefined for %s\n",
params->cmdname, (*curr)->name);
}
break;
}
}
}
if (retval != 0) {
fprintf(stderr, "%s: cannot detect image type\n",
params->cmdname);
}
return retval;
}
static int imagetool_verify_print_header_by_type(
void *ptr,
struct stat *sbuf,
struct image_type_params *tparams,
struct image_tool_params *params)
{
int retval = -1;
if (tparams->verify_header) {
retval = tparams->verify_header((unsigned char *)ptr,
sbuf->st_size, params);
if (retval == 0) {
/*
* Print the image information if verify is successful
*/
if (tparams->print_header) {
if (!params->quiet)
tparams->print_header(ptr, params);
} else {
fprintf(stderr,
"%s: print_header undefined for %s\n",
params->cmdname, tparams->name);
}
} else {
fprintf(stderr,
"%s: verify_header failed for %s with exit code %d\n",
params->cmdname, tparams->name, retval);
}
} else {
fprintf(stderr, "%s: verify_header undefined for %s\n",
params->cmdname, tparams->name);
}
return retval;
}
int imagetool_save_subimage(
const char *file_name,
ulong file_data,
ulong file_len)
{
int dfd;
dfd = open(file_name, O_RDWR | O_CREAT | O_TRUNC | O_BINARY,
S_IRUSR | S_IWUSR);
if (dfd < 0) {
fprintf(stderr, "Can't open \"%s\": %s\n",
file_name, strerror(errno));
return -1;
}
if (write(dfd, (void *)file_data, file_len) != (ssize_t)file_len) {
fprintf(stderr, "Write error on \"%s\": %s\n",
file_name, strerror(errno));
close(dfd);
return -1;
}
close(dfd);
return 0;
}
int imagetool_get_filesize(struct image_tool_params *params, const char *fname)
{
struct stat sbuf;
int fd;
fd = open(fname, O_RDONLY | O_BINARY);
if (fd < 0) {
fprintf(stderr, "%s: Can't open %s: %s\n",
params->cmdname, fname, strerror(errno));
return -1;
}
if (fstat(fd, &sbuf) < 0) {
fprintf(stderr, "%s: Can't stat %s: %s\n",
params->cmdname, fname, strerror(errno));
close(fd);
return -1;
}
close(fd);
return sbuf.st_size;
}
time_t imagetool_get_source_date(
const char *cmdname,
time_t fallback)
{
char *source_date_epoch = getenv("SOURCE_DATE_EPOCH");
if (source_date_epoch == NULL)
return fallback;
time_t time = (time_t) strtol(source_date_epoch, NULL, 10);
if (gmtime(&time) == NULL) {
fprintf(stderr, "%s: SOURCE_DATE_EPOCH is not valid\n",
cmdname);
time = 0;
}
return time;
}
|
