]>
git.ipfire.org Git - people/ms/u-boot.git/blob - tools/dumpimage.c
4 * Written by Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
6 * SPDX-License-Identifier: GPL-2.0+
13 static void usage(void);
15 /* image_type_params linked list to maintain registered image types supports */
16 static struct image_type_params
*dumpimage_tparams
;
18 /* parameters initialized by core will be used by the image type code */
19 static struct image_tool_params params
= {
20 .type
= IH_TYPE_KERNEL
,
24 * dumpimage_extract_datafile -
26 * It scans all registered image types,
27 * verifies image_header for each supported image type
28 * if verification is successful, it extracts the desired file,
29 * indexed by pflag, from the image
31 * returns negative if input image format does not match with any of
32 * supported image types
34 static int dumpimage_extract_datafile(void *ptr
, struct stat
*sbuf
)
37 struct image_type_params
*curr
;
38 struct image_type_params
*start
= ll_entry_start(
39 struct image_type_params
, image_type
);
40 struct image_type_params
*end
= ll_entry_end(
41 struct image_type_params
, image_type
);
43 for (curr
= start
; curr
!= end
; curr
++) {
44 if (curr
->verify_header
) {
45 retval
= curr
->verify_header((unsigned char *)ptr
,
46 sbuf
->st_size
, ¶ms
);
50 * Extract the file from the image
51 * if verify is successful
53 if (curr
->extract_datafile
) {
54 curr
->extract_datafile(ptr
, ¶ms
);
57 "%s: extract_datafile undefined for %s\n",
58 params
.cmdname
, curr
->name
);
67 int main(int argc
, char **argv
)
74 struct image_type_params
*tparams
= NULL
;
76 params
.cmdname
= *argv
;
78 while ((opt
= getopt(argc
, argv
, "li:o:p:V")) != -1) {
84 params
.imagefile
= optarg
;
88 params
.outfile
= optarg
;
91 params
.pflag
= strtoul(optarg
, &ptr
, 10);
94 "%s: invalid file position %s\n",
95 params
.cmdname
, *argv
);
100 printf("dumpimage version %s\n", PLAIN_VERSION
);
110 /* set tparams as per input type_id */
111 tparams
= imagetool_get_type(params
.type
);
112 if (tparams
== NULL
) {
113 fprintf(stderr
, "%s: unsupported type %s\n",
114 params
.cmdname
, genimg_get_type_name(params
.type
));
119 * check the passed arguments parameters meets the requirements
120 * as per image type to be generated/listed
122 if (tparams
->check_params
) {
123 if (tparams
->check_params(¶ms
))
128 params
.datafile
= argv
[optind
];
130 params
.imagefile
= argv
[optind
];
132 params
.outfile
= params
.datafile
;
134 ifd
= open(params
.imagefile
, O_RDONLY
|O_BINARY
);
136 fprintf(stderr
, "%s: Can't open \"%s\": %s\n",
137 params
.cmdname
, params
.imagefile
,
142 if (params
.lflag
|| params
.iflag
) {
143 if (fstat(ifd
, &sbuf
) < 0) {
144 fprintf(stderr
, "%s: Can't stat \"%s\": %s\n",
145 params
.cmdname
, params
.imagefile
,
150 if ((unsigned)sbuf
.st_size
< tparams
->header_size
) {
152 "%s: Bad size: \"%s\" is not valid image\n",
153 params
.cmdname
, params
.imagefile
);
157 ptr
= mmap(0, sbuf
.st_size
, PROT_READ
, MAP_SHARED
, ifd
, 0);
158 if (ptr
== MAP_FAILED
) {
159 fprintf(stderr
, "%s: Can't read \"%s\": %s\n",
160 params
.cmdname
, params
.imagefile
,
166 * Both calls bellow scan through dumpimage registry for all
167 * supported image types and verify the input image file
172 * Extract the data files from within the matched
173 * image type. Returns the error code if not matched
175 retval
= dumpimage_extract_datafile(ptr
, &sbuf
);
178 * Print the image information for matched image type
179 * Returns the error code if not matched
181 retval
= imagetool_verify_print_header(ptr
, &sbuf
,
185 (void)munmap((void *)ptr
, sbuf
.st_size
);
196 static void usage(void)
198 fprintf(stderr
, "Usage: %s -l image\n"
199 " -l ==> list image header information\n",
202 " %s -i image [-p position] [-o outfile] data_file\n"
203 " -i ==> extract from the 'image' a specific 'data_file'"
204 ", indexed by 'position' (starting at 0)\n",
207 " %s -V ==> print version information and exit\n",