]>
git.ipfire.org Git - thirdparty/u-boot.git/blob - tools/dumpimage.c
1 // SPDX-License-Identifier: GPL-2.0+
5 * Written by Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
12 static void usage(void);
14 /* parameters initialized by core will be used by the image type code */
15 static struct image_tool_params params
;
18 * dumpimage_extract_subimage -
20 * It scans all registered image types,
21 * verifies image_header for each supported image type
22 * if verification is successful, it extracts the desired file,
23 * indexed by pflag, from the image
25 * returns negative if input image format does not match with any of
26 * supported image types
28 static int dumpimage_extract_subimage(struct image_type_params
*tparams
,
29 void *ptr
, struct stat
*sbuf
)
33 if (tparams
->verify_header
) {
34 retval
= tparams
->verify_header((unsigned char *)ptr
,
35 sbuf
->st_size
, ¶ms
);
37 fprintf(stderr
, "%s: failed to verify header of %s\n",
38 params
.cmdname
, tparams
->name
);
43 * Extract the file from the image
44 * if verify is successful
46 if (tparams
->extract_subimage
) {
47 retval
= tparams
->extract_subimage(ptr
, ¶ms
);
49 fprintf(stderr
, "%s: extract_subimage failed for %s\n",
50 params
.cmdname
, tparams
->name
);
55 "%s: extract_subimage undefined for %s\n",
56 params
.cmdname
, tparams
->name
);
64 int main(int argc
, char **argv
)
70 int retval
= EXIT_SUCCESS
;
71 struct image_type_params
*tparams
= NULL
;
73 params
.cmdname
= *argv
;
75 while ((opt
= getopt(argc
, argv
, "hlo:T:p:V")) != -1) {
81 params
.outfile
= optarg
;
85 params
.type
= genimg_get_type_id(optarg
);
86 if (params
.type
< 0) {
87 fprintf(stderr
, "%s: Invalid type\n",
93 params
.pflag
= strtoul(optarg
, &ptr
, 10);
96 "%s: invalid file position %s\n",
97 params
.cmdname
, *argv
);
102 printf("dumpimage version %s\n", PLAIN_VERSION
);
111 if (argc
< 2 || (params
.iflag
&& params
.lflag
))
114 if (optind
>= argc
) {
115 fprintf(stderr
, "%s: image file missing\n", params
.cmdname
);
119 params
.imagefile
= argv
[optind
];
121 /* set tparams as per input type_id */
122 tparams
= imagetool_get_type(params
.type
);
123 if (!params
.lflag
&& tparams
== NULL
) {
124 fprintf(stderr
, "%s: unsupported type: %s\n",
125 params
.cmdname
, genimg_get_type_name(params
.type
));
130 * check the passed arguments parameters meets the requirements
131 * as per image type to be generated/listed
133 if (tparams
&& tparams
->check_params
) {
134 if (tparams
->check_params(¶ms
)) {
135 fprintf(stderr
, "%s: Parameter check failed\n",
141 if (!params
.lflag
&& !params
.outfile
) {
142 fprintf(stderr
, "%s: No output file provided\n",
147 ifd
= open(params
.imagefile
, O_RDONLY
|O_BINARY
);
149 fprintf(stderr
, "%s: Can't open \"%s\": %s\n", params
.cmdname
,
150 params
.imagefile
, strerror(errno
));
154 if (fstat(ifd
, &sbuf
) < 0) {
155 fprintf(stderr
, "%s: Can't stat \"%s\": %s\n", params
.cmdname
,
156 params
.imagefile
, strerror(errno
));
160 if (tparams
&& (uint32_t)sbuf
.st_size
< tparams
->header_size
) {
161 fprintf(stderr
, "%s: Bad size: \"%s\" is not valid image\n",
162 params
.cmdname
, params
.imagefile
);
166 ptr
= mmap(0, sbuf
.st_size
, PROT_READ
, MAP_SHARED
, ifd
, 0);
167 if (ptr
== MAP_FAILED
) {
168 fprintf(stderr
, "%s: Can't read \"%s\": %s\n", params
.cmdname
,
169 params
.imagefile
, strerror(errno
));
174 * Both calls bellow scan through dumpimage registry for all
175 * supported image types and verify the input image file
180 * Extract the data files from within the matched
181 * image type. Returns the error code if not matched
183 retval
= dumpimage_extract_subimage(tparams
, ptr
, &sbuf
);
185 fprintf(stderr
, "%s: Can't extract subimage from %s\n",
186 params
.cmdname
, params
.imagefile
);
189 * Print the image information for matched image type
190 * Returns the error code if not matched
192 retval
= imagetool_verify_print_header(ptr
, &sbuf
, tparams
,
196 (void)munmap((void *)ptr
, sbuf
.st_size
);
202 static void usage(void)
204 fprintf(stderr
, "Usage: %s [-T type] -l image\n"
205 " -l ==> list image header information\n"
206 " -T ==> parse image file as 'type'\n",
209 " %s [-T type] [-p position] [-o outfile] image\n"
210 " -T ==> declare image type as 'type'\n"
211 " -p ==> 'position' (starting at 0) of the component to extract from image\n"
212 " -o ==> extract component to file 'outfile'\n",
215 " %s -h ==> print usage information and exit\n",
218 " %s -V ==> print version information and exit\n",