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Commit | Line | Data |
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89a4d6b1 PW |
1 | /* |
2 | * (C) Copyright 2008 Semihalf | |
3 | * | |
4 | * (C) Copyright 2000-2004 | |
5 | * DENX Software Engineering | |
6 | * Wolfgang Denk, wd@denx.de | |
7 | * | |
8 | * Updated-by: Prafulla Wadaskar <prafulla@marvell.com> | |
9 | * FIT image specific code abstracted from mkimage.c | |
10 | * some functions added to address abstraction | |
11 | * | |
12 | * All rights reserved. | |
13 | * | |
1a459660 | 14 | * SPDX-License-Identifier: GPL-2.0+ |
89a4d6b1 PW |
15 | */ |
16 | ||
f86ed6a8 | 17 | #include "imagetool.h" |
6bf4ca07 | 18 | #include "fit_common.h" |
89a4d6b1 PW |
19 | #include "mkimage.h" |
20 | #include <image.h> | |
8e35bb07 SG |
21 | #include <stdarg.h> |
22 | #include <version.h> | |
89a4d6b1 PW |
23 | #include <u-boot/crc.h> |
24 | ||
25 | static image_header_t header; | |
26 | ||
a9468115 SG |
27 | static int fit_add_file_data(struct image_tool_params *params, size_t size_inc, |
28 | const char *tmpfile) | |
29 | { | |
30 | int tfd, destfd = 0; | |
31 | void *dest_blob = NULL; | |
32 | off_t destfd_size = 0; | |
33 | struct stat sbuf; | |
34 | void *ptr; | |
35 | int ret = 0; | |
36 | ||
37 | tfd = mmap_fdt(params->cmdname, tmpfile, size_inc, &ptr, &sbuf, true); | |
38 | if (tfd < 0) | |
39 | return -EIO; | |
40 | ||
41 | if (params->keydest) { | |
42 | struct stat dest_sbuf; | |
43 | ||
44 | destfd = mmap_fdt(params->cmdname, params->keydest, size_inc, | |
45 | &dest_blob, &dest_sbuf, false); | |
46 | if (destfd < 0) { | |
47 | ret = -EIO; | |
48 | goto err_keydest; | |
49 | } | |
50 | destfd_size = dest_sbuf.st_size; | |
51 | } | |
52 | ||
53 | /* for first image creation, add a timestamp at offset 0 i.e., root */ | |
54 | if (params->datafile) | |
55 | ret = fit_set_timestamp(ptr, 0, sbuf.st_mtime); | |
56 | ||
57 | if (!ret) { | |
58 | ret = fit_add_verification_data(params->keydir, dest_blob, ptr, | |
59 | params->comment, | |
60 | params->require_keys); | |
61 | } | |
62 | ||
63 | if (dest_blob) { | |
64 | munmap(dest_blob, destfd_size); | |
65 | close(destfd); | |
66 | } | |
67 | ||
68 | err_keydest: | |
69 | munmap(ptr, sbuf.st_size); | |
70 | close(tfd); | |
71 | ||
72 | return ret; | |
73 | } | |
74 | ||
8e35bb07 SG |
75 | /** |
76 | * fit_calc_size() - Calculate the approximate size of the FIT we will generate | |
77 | */ | |
78 | static int fit_calc_size(struct image_tool_params *params) | |
79 | { | |
fb4cce0f | 80 | struct content_info *cont; |
8e35bb07 SG |
81 | int size, total_size; |
82 | ||
83 | size = imagetool_get_filesize(params, params->datafile); | |
84 | if (size < 0) | |
85 | return -1; | |
86 | ||
87 | total_size = size; | |
fb4cce0f SG |
88 | for (cont = params->content_head; cont; cont = cont->next) { |
89 | size = imagetool_get_filesize(params, cont->fname); | |
90 | if (size < 0) | |
91 | return -1; | |
8e35bb07 | 92 | |
fb4cce0f SG |
93 | /* Add space for properties */ |
94 | total_size += size + 300; | |
95 | } | |
8e35bb07 SG |
96 | |
97 | /* Add plenty of space for headers, properties, nodes, etc. */ | |
98 | total_size += 4096; | |
99 | ||
100 | return total_size; | |
101 | } | |
102 | ||
103 | static int fdt_property_file(struct image_tool_params *params, | |
104 | void *fdt, const char *name, const char *fname) | |
105 | { | |
106 | struct stat sbuf; | |
107 | void *ptr; | |
108 | int ret; | |
109 | int fd; | |
110 | ||
111 | fd = open(fname, O_RDWR | O_BINARY); | |
112 | if (fd < 0) { | |
113 | fprintf(stderr, "%s: Can't open %s: %s\n", | |
114 | params->cmdname, fname, strerror(errno)); | |
115 | return -1; | |
116 | } | |
117 | ||
118 | if (fstat(fd, &sbuf) < 0) { | |
119 | fprintf(stderr, "%s: Can't stat %s: %s\n", | |
120 | params->cmdname, fname, strerror(errno)); | |
121 | goto err; | |
122 | } | |
123 | ||
124 | ret = fdt_property_placeholder(fdt, "data", sbuf.st_size, &ptr); | |
125 | if (ret) | |
126 | return ret; | |
127 | ret = read(fd, ptr, sbuf.st_size); | |
128 | if (ret != sbuf.st_size) { | |
129 | fprintf(stderr, "%s: Can't read %s: %s\n", | |
130 | params->cmdname, fname, strerror(errno)); | |
131 | goto err; | |
132 | } | |
133 | ||
134 | return 0; | |
135 | err: | |
136 | close(fd); | |
137 | return -1; | |
138 | } | |
139 | ||
140 | static int fdt_property_strf(void *fdt, const char *name, const char *fmt, ...) | |
141 | { | |
142 | char str[100]; | |
143 | va_list ptr; | |
144 | ||
145 | va_start(ptr, fmt); | |
146 | vsnprintf(str, sizeof(str), fmt, ptr); | |
147 | va_end(ptr); | |
148 | return fdt_property_string(fdt, name, str); | |
149 | } | |
150 | ||
fb4cce0f SG |
151 | static void get_basename(char *str, int size, const char *fname) |
152 | { | |
153 | const char *p, *start, *end; | |
154 | int len; | |
155 | ||
156 | /* | |
157 | * Use the base name as the 'name' field. So for example: | |
158 | * | |
159 | * "arch/arm/dts/sun7i-a20-bananapro.dtb" | |
160 | * becomes "sun7i-a20-bananapro" | |
161 | */ | |
162 | p = strrchr(fname, '/'); | |
163 | start = p ? p + 1 : fname; | |
164 | p = strrchr(fname, '.'); | |
165 | end = p ? p : fname + strlen(fname); | |
166 | len = end - start; | |
167 | if (len >= size) | |
168 | len = size - 1; | |
169 | memcpy(str, start, len); | |
170 | str[len] = '\0'; | |
171 | } | |
172 | ||
8e35bb07 SG |
173 | /** |
174 | * fit_write_images() - Write out a list of images to the FIT | |
175 | * | |
fb4cce0f SG |
176 | * We always include the main image (params->datafile). If there are device |
177 | * tree files, we include an fdt@ node for each of those too. | |
8e35bb07 SG |
178 | */ |
179 | static int fit_write_images(struct image_tool_params *params, char *fdt) | |
180 | { | |
fb4cce0f | 181 | struct content_info *cont; |
8e35bb07 SG |
182 | const char *typename; |
183 | char str[100]; | |
fb4cce0f | 184 | int upto; |
8e35bb07 SG |
185 | int ret; |
186 | ||
187 | fdt_begin_node(fdt, "images"); | |
188 | ||
189 | /* First the main image */ | |
190 | typename = genimg_get_type_short_name(params->fit_image_type); | |
191 | snprintf(str, sizeof(str), "%s@1", typename); | |
192 | fdt_begin_node(fdt, str); | |
193 | fdt_property_string(fdt, "description", params->imagename); | |
194 | fdt_property_string(fdt, "type", typename); | |
195 | fdt_property_string(fdt, "arch", genimg_get_arch_name(params->arch)); | |
196 | fdt_property_string(fdt, "os", genimg_get_os_short_name(params->os)); | |
197 | fdt_property_string(fdt, "compression", | |
198 | genimg_get_comp_short_name(params->comp)); | |
199 | fdt_property_u32(fdt, "load", params->addr); | |
200 | fdt_property_u32(fdt, "entry", params->ep); | |
201 | ||
202 | /* | |
203 | * Put data last since it is large. SPL may only load the first part | |
204 | * of the DT, so this way it can access all the above fields. | |
205 | */ | |
206 | ret = fdt_property_file(params, fdt, "data", params->datafile); | |
207 | if (ret) | |
208 | return ret; | |
209 | fdt_end_node(fdt); | |
210 | ||
fb4cce0f SG |
211 | /* Now the device tree files if available */ |
212 | upto = 0; | |
213 | for (cont = params->content_head; cont; cont = cont->next) { | |
214 | if (cont->type != IH_TYPE_FLATDT) | |
215 | continue; | |
216 | snprintf(str, sizeof(str), "%s@%d", FIT_FDT_PROP, ++upto); | |
217 | fdt_begin_node(fdt, str); | |
218 | ||
219 | get_basename(str, sizeof(str), cont->fname); | |
220 | fdt_property_string(fdt, "description", str); | |
221 | ret = fdt_property_file(params, fdt, "data", cont->fname); | |
222 | if (ret) | |
223 | return ret; | |
224 | fdt_property_string(fdt, "type", typename); | |
225 | fdt_property_string(fdt, "arch", | |
226 | genimg_get_arch_short_name(params->arch)); | |
227 | fdt_property_string(fdt, "compression", | |
228 | genimg_get_comp_short_name(IH_COMP_NONE)); | |
229 | fdt_end_node(fdt); | |
230 | } | |
231 | ||
8e35bb07 SG |
232 | fdt_end_node(fdt); |
233 | ||
234 | return 0; | |
235 | } | |
236 | ||
237 | /** | |
238 | * fit_write_configs() - Write out a list of configurations to the FIT | |
239 | * | |
fb4cce0f SG |
240 | * If there are device tree files, we include a configuration for each, which |
241 | * selects the main image (params->datafile) and its corresponding device | |
242 | * tree file. | |
243 | * | |
244 | * Otherwise we just create a configuration with the main image in it. | |
8e35bb07 SG |
245 | */ |
246 | static void fit_write_configs(struct image_tool_params *params, char *fdt) | |
247 | { | |
fb4cce0f | 248 | struct content_info *cont; |
8e35bb07 SG |
249 | const char *typename; |
250 | char str[100]; | |
fb4cce0f | 251 | int upto; |
8e35bb07 SG |
252 | |
253 | fdt_begin_node(fdt, "configurations"); | |
254 | fdt_property_string(fdt, "default", "conf@1"); | |
255 | ||
fb4cce0f SG |
256 | upto = 0; |
257 | for (cont = params->content_head; cont; cont = cont->next) { | |
258 | if (cont->type != IH_TYPE_FLATDT) | |
259 | continue; | |
260 | typename = genimg_get_type_short_name(cont->type); | |
261 | snprintf(str, sizeof(str), "conf@%d", ++upto); | |
262 | fdt_begin_node(fdt, str); | |
263 | ||
264 | get_basename(str, sizeof(str), cont->fname); | |
265 | fdt_property_string(fdt, "description", str); | |
266 | ||
267 | typename = genimg_get_type_short_name(params->fit_image_type); | |
268 | snprintf(str, sizeof(str), "%s@1", typename); | |
269 | fdt_property_string(fdt, typename, str); | |
270 | ||
271 | snprintf(str, sizeof(str), FIT_FDT_PROP "@%d", upto); | |
272 | fdt_property_string(fdt, FIT_FDT_PROP, str); | |
273 | fdt_end_node(fdt); | |
274 | } | |
275 | if (!upto) { | |
276 | fdt_begin_node(fdt, "conf@1"); | |
277 | typename = genimg_get_type_short_name(params->fit_image_type); | |
278 | snprintf(str, sizeof(str), "%s@1", typename); | |
279 | fdt_property_string(fdt, typename, str); | |
280 | fdt_end_node(fdt); | |
281 | } | |
8e35bb07 SG |
282 | |
283 | fdt_end_node(fdt); | |
284 | } | |
285 | ||
286 | static int fit_build_fdt(struct image_tool_params *params, char *fdt, int size) | |
287 | { | |
288 | int ret; | |
289 | ||
290 | ret = fdt_create(fdt, size); | |
291 | if (ret) | |
292 | return ret; | |
293 | fdt_finish_reservemap(fdt); | |
294 | fdt_begin_node(fdt, ""); | |
295 | fdt_property_strf(fdt, "description", | |
296 | "%s image with one or more FDT blobs", | |
297 | genimg_get_type_name(params->fit_image_type)); | |
298 | fdt_property_strf(fdt, "creator", "U-Boot mkimage %s", PLAIN_VERSION); | |
299 | fdt_property_u32(fdt, "#address-cells", 1); | |
300 | ret = fit_write_images(params, fdt); | |
301 | if (ret) | |
302 | return ret; | |
303 | fit_write_configs(params, fdt); | |
304 | fdt_end_node(fdt); | |
305 | ret = fdt_finish(fdt); | |
306 | if (ret) | |
307 | return ret; | |
308 | ||
309 | return fdt_totalsize(fdt); | |
310 | } | |
311 | ||
312 | static int fit_build(struct image_tool_params *params, const char *fname) | |
313 | { | |
314 | char *buf; | |
315 | int size; | |
316 | int ret; | |
317 | int fd; | |
318 | ||
319 | size = fit_calc_size(params); | |
320 | if (size < 0) | |
321 | return -1; | |
322 | buf = malloc(size); | |
323 | if (!buf) { | |
324 | fprintf(stderr, "%s: Out of memory (%d bytes)\n", | |
325 | params->cmdname, size); | |
326 | return -1; | |
327 | } | |
328 | ret = fit_build_fdt(params, buf, size); | |
329 | if (ret < 0) { | |
330 | fprintf(stderr, "%s: Failed to build FIT image\n", | |
331 | params->cmdname); | |
332 | goto err; | |
333 | } | |
334 | size = ret; | |
335 | fd = open(fname, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0666); | |
336 | if (fd < 0) { | |
337 | fprintf(stderr, "%s: Can't open %s: %s\n", | |
338 | params->cmdname, fname, strerror(errno)); | |
339 | goto err; | |
340 | } | |
341 | ret = write(fd, buf, size); | |
342 | if (ret != size) { | |
343 | fprintf(stderr, "%s: Can't write %s: %s\n", | |
344 | params->cmdname, fname, strerror(errno)); | |
345 | close(fd); | |
346 | goto err; | |
347 | } | |
348 | close(fd); | |
349 | ||
350 | return 0; | |
351 | err: | |
352 | free(buf); | |
353 | return -1; | |
354 | } | |
355 | ||
722ebc8f SG |
356 | /** |
357 | * fit_extract_data() - Move all data outside the FIT | |
358 | * | |
359 | * This takes a normal FIT file and removes all the 'data' properties from it. | |
360 | * The data is placed in an area after the FIT so that it can be accessed | |
361 | * using an offset into that area. The 'data' properties turn into | |
362 | * 'data-offset' properties. | |
363 | * | |
364 | * This function cannot cope with FITs with 'data-offset' properties. All | |
365 | * data must be in 'data' properties on entry. | |
366 | */ | |
367 | static int fit_extract_data(struct image_tool_params *params, const char *fname) | |
368 | { | |
369 | void *buf; | |
370 | int buf_ptr; | |
371 | int fit_size, new_size; | |
372 | int fd; | |
373 | struct stat sbuf; | |
374 | void *fdt; | |
375 | int ret; | |
376 | int images; | |
377 | int node; | |
378 | ||
379 | fd = mmap_fdt(params->cmdname, fname, 0, &fdt, &sbuf, false); | |
380 | if (fd < 0) | |
381 | return -EIO; | |
382 | fit_size = fdt_totalsize(fdt); | |
383 | ||
384 | /* Allocate space to hold the image data we will extract */ | |
385 | buf = malloc(fit_size); | |
386 | if (!buf) { | |
387 | ret = -ENOMEM; | |
388 | goto err; | |
389 | } | |
390 | buf_ptr = 0; | |
391 | ||
392 | images = fdt_path_offset(fdt, FIT_IMAGES_PATH); | |
393 | if (images < 0) { | |
394 | debug("%s: Cannot find /images node: %d\n", __func__, images); | |
395 | ret = -EINVAL; | |
396 | goto err; | |
397 | } | |
398 | ||
399 | for (node = fdt_first_subnode(fdt, images); | |
400 | node >= 0; | |
401 | node = fdt_next_subnode(fdt, node)) { | |
402 | const char *data; | |
403 | int len; | |
404 | ||
405 | data = fdt_getprop(fdt, node, "data", &len); | |
406 | if (!data) | |
407 | continue; | |
408 | memcpy(buf + buf_ptr, data, len); | |
409 | debug("Extracting data size %x\n", len); | |
410 | ||
411 | ret = fdt_delprop(fdt, node, "data"); | |
412 | if (ret) { | |
413 | ret = -EPERM; | |
414 | goto err; | |
415 | } | |
416 | fdt_setprop_u32(fdt, node, "data-offset", buf_ptr); | |
417 | fdt_setprop_u32(fdt, node, "data-size", len); | |
418 | ||
419 | buf_ptr += (len + 3) & ~3; | |
420 | } | |
421 | ||
422 | /* Pack the FDT and place the data after it */ | |
423 | fdt_pack(fdt); | |
424 | ||
425 | debug("Size reduced from %x to %x\n", fit_size, fdt_totalsize(fdt)); | |
426 | debug("External data size %x\n", buf_ptr); | |
427 | new_size = fdt_totalsize(fdt); | |
428 | new_size = (new_size + 3) & ~3; | |
429 | munmap(fdt, sbuf.st_size); | |
430 | ||
431 | if (ftruncate(fd, new_size)) { | |
432 | debug("%s: Failed to truncate file: %s\n", __func__, | |
433 | strerror(errno)); | |
434 | ret = -EIO; | |
435 | goto err; | |
436 | } | |
437 | if (lseek(fd, new_size, SEEK_SET) < 0) { | |
438 | debug("%s: Failed to seek to end of file: %s\n", __func__, | |
439 | strerror(errno)); | |
440 | ret = -EIO; | |
441 | goto err; | |
442 | } | |
443 | if (write(fd, buf, buf_ptr) != buf_ptr) { | |
444 | debug("%s: Failed to write external data to file %s\n", | |
445 | __func__, strerror(errno)); | |
446 | ret = -EIO; | |
447 | goto err; | |
448 | } | |
449 | close(fd); | |
450 | ||
451 | ret = 0; | |
452 | ||
453 | err: | |
454 | close(fd); | |
455 | return ret; | |
456 | } | |
457 | ||
89a4d6b1 PW |
458 | /** |
459 | * fit_handle_file - main FIT file processing function | |
460 | * | |
461 | * fit_handle_file() runs dtc to convert .its to .itb, includes | |
462 | * binary data, updates timestamp property and calculates hashes. | |
463 | * | |
464 | * datafile - .its file | |
465 | * imagefile - .itb file | |
466 | * | |
467 | * returns: | |
468 | * only on success, otherwise calls exit (EXIT_FAILURE); | |
469 | */ | |
f86ed6a8 | 470 | static int fit_handle_file(struct image_tool_params *params) |
89a4d6b1 PW |
471 | { |
472 | char tmpfile[MKIMAGE_MAX_TMPFILE_LEN]; | |
473 | char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN]; | |
a9468115 SG |
474 | size_t size_inc; |
475 | int ret; | |
89a4d6b1 PW |
476 | |
477 | /* Flattened Image Tree (FIT) format handling */ | |
478 | debug ("FIT format handling\n"); | |
479 | ||
480 | /* call dtc to include binary properties into the tmp file */ | |
481 | if (strlen (params->imagefile) + | |
482 | strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 > sizeof (tmpfile)) { | |
483 | fprintf (stderr, "%s: Image file name (%s) too long, " | |
484 | "can't create tmpfile", | |
485 | params->imagefile, params->cmdname); | |
486 | return (EXIT_FAILURE); | |
487 | } | |
488 | sprintf (tmpfile, "%s%s", params->imagefile, MKIMAGE_TMPFILE_SUFFIX); | |
489 | ||
95d77b44 | 490 | /* We either compile the source file, or use the existing FIT image */ |
8e35bb07 SG |
491 | if (params->auto_its) { |
492 | if (fit_build(params, tmpfile)) { | |
493 | fprintf(stderr, "%s: failed to build FIT\n", | |
494 | params->cmdname); | |
495 | return EXIT_FAILURE; | |
496 | } | |
497 | *cmd = '\0'; | |
498 | } else if (params->datafile) { | |
95d77b44 SG |
499 | /* dtc -I dts -O dtb -p 500 datafile > tmpfile */ |
500 | snprintf(cmd, sizeof(cmd), "%s %s %s > %s", | |
501 | MKIMAGE_DTC, params->dtc, params->datafile, tmpfile); | |
502 | debug("Trying to execute \"%s\"\n", cmd); | |
503 | } else { | |
504 | snprintf(cmd, sizeof(cmd), "cp %s %s", | |
505 | params->imagefile, tmpfile); | |
506 | } | |
8e35bb07 | 507 | if (*cmd && system(cmd) == -1) { |
89a4d6b1 PW |
508 | fprintf (stderr, "%s: system(%s) failed: %s\n", |
509 | params->cmdname, cmd, strerror(errno)); | |
aa6d6db4 | 510 | goto err_system; |
89a4d6b1 PW |
511 | } |
512 | ||
a9468115 SG |
513 | /* |
514 | * Set hashes for images in the blob. Unfortunately we may need more | |
515 | * space in either FDT, so keep trying until we succeed. | |
516 | * | |
517 | * Note: this is pretty inefficient for signing, since we must | |
518 | * calculate the signature every time. It would be better to calculate | |
519 | * all the data and then store it in a separate step. However, this | |
520 | * would be considerably more complex to implement. Generally a few | |
521 | * steps of this loop is enough to sign with several keys. | |
522 | */ | |
523 | for (size_inc = 0; size_inc < 64 * 1024; size_inc += 1024) { | |
524 | ret = fit_add_file_data(params, size_inc, tmpfile); | |
525 | if (!ret || ret != -ENOSPC) | |
526 | break; | |
e29495d3 SG |
527 | } |
528 | ||
a9468115 | 529 | if (ret) { |
399c744b SG |
530 | fprintf(stderr, "%s Can't add hashes to FIT blob\n", |
531 | params->cmdname); | |
a9468115 | 532 | goto err_system; |
e29495d3 | 533 | } |
89a4d6b1 | 534 | |
722ebc8f SG |
535 | /* Move the data so it is external to the FIT, if requested */ |
536 | if (params->external_data) { | |
537 | ret = fit_extract_data(params, tmpfile); | |
538 | if (ret) | |
539 | goto err_system; | |
540 | } | |
541 | ||
89a4d6b1 PW |
542 | if (rename (tmpfile, params->imagefile) == -1) { |
543 | fprintf (stderr, "%s: Can't rename %s to %s: %s\n", | |
544 | params->cmdname, tmpfile, params->imagefile, | |
545 | strerror (errno)); | |
546 | unlink (tmpfile); | |
547 | unlink (params->imagefile); | |
a9468115 | 548 | return EXIT_FAILURE; |
89a4d6b1 | 549 | } |
a9468115 | 550 | return EXIT_SUCCESS; |
aa6d6db4 | 551 | |
aa6d6db4 SG |
552 | err_system: |
553 | unlink(tmpfile); | |
554 | return -1; | |
89a4d6b1 PW |
555 | } |
556 | ||
39931f96 GMF |
557 | /** |
558 | * fit_image_extract - extract a FIT component image | |
559 | * @fit: pointer to the FIT format image header | |
560 | * @image_noffset: offset of the component image node | |
561 | * @file_name: name of the file to store the FIT sub-image | |
562 | * | |
563 | * returns: | |
564 | * zero in case of success or a negative value if fail. | |
565 | */ | |
566 | static int fit_image_extract( | |
567 | const void *fit, | |
568 | int image_noffset, | |
569 | const char *file_name) | |
570 | { | |
571 | const void *file_data; | |
572 | size_t file_size = 0; | |
573 | ||
574 | /* get the "data" property of component at offset "image_noffset" */ | |
575 | fit_image_get_data(fit, image_noffset, &file_data, &file_size); | |
576 | ||
577 | /* save the "file_data" into the file specified by "file_name" */ | |
578 | return imagetool_save_subimage(file_name, (ulong) file_data, file_size); | |
579 | } | |
580 | ||
581 | /** | |
582 | * fit_extract_contents - retrieve a sub-image component from the FIT image | |
583 | * @ptr: pointer to the FIT format image header | |
584 | * @params: command line parameters | |
585 | * | |
586 | * returns: | |
587 | * zero in case of success or a negative value if fail. | |
588 | */ | |
589 | static int fit_extract_contents(void *ptr, struct image_tool_params *params) | |
590 | { | |
591 | int images_noffset; | |
592 | int noffset; | |
593 | int ndepth; | |
594 | const void *fit = ptr; | |
595 | int count = 0; | |
596 | const char *p; | |
597 | ||
598 | /* Indent string is defined in header image.h */ | |
599 | p = IMAGE_INDENT_STRING; | |
600 | ||
601 | if (!fit_check_format(fit)) { | |
602 | printf("Bad FIT image format\n"); | |
603 | return -1; | |
604 | } | |
605 | ||
606 | /* Find images parent node offset */ | |
607 | images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH); | |
608 | if (images_noffset < 0) { | |
609 | printf("Can't find images parent node '%s' (%s)\n", | |
610 | FIT_IMAGES_PATH, fdt_strerror(images_noffset)); | |
611 | return -1; | |
612 | } | |
613 | ||
614 | /* Avoid any overrun */ | |
615 | count = fit_get_subimage_count(fit, images_noffset); | |
616 | if ((params->pflag < 0) || (count <= params->pflag)) { | |
617 | printf("No such component at '%d'\n", params->pflag); | |
618 | return -1; | |
619 | } | |
620 | ||
621 | /* Process its subnodes, extract the desired component from image */ | |
622 | for (ndepth = 0, count = 0, | |
623 | noffset = fdt_next_node(fit, images_noffset, &ndepth); | |
624 | (noffset >= 0) && (ndepth > 0); | |
625 | noffset = fdt_next_node(fit, noffset, &ndepth)) { | |
626 | if (ndepth == 1) { | |
627 | /* | |
628 | * Direct child node of the images parent node, | |
629 | * i.e. component image node. | |
630 | */ | |
631 | if (params->pflag == count) { | |
632 | printf("Extracted:\n%s Image %u (%s)\n", p, | |
633 | count, fit_get_name(fit, noffset, NULL)); | |
634 | ||
635 | fit_image_print(fit, noffset, p); | |
636 | ||
637 | return fit_image_extract(fit, noffset, | |
638 | params->outfile); | |
639 | } | |
640 | ||
641 | count++; | |
642 | } | |
643 | } | |
644 | ||
645 | return 0; | |
646 | } | |
647 | ||
f86ed6a8 | 648 | static int fit_check_params(struct image_tool_params *params) |
89a4d6b1 | 649 | { |
8e35bb07 SG |
650 | if (params->auto_its) |
651 | return 0; | |
89a4d6b1 PW |
652 | return ((params->dflag && (params->fflag || params->lflag)) || |
653 | (params->fflag && (params->dflag || params->lflag)) || | |
654 | (params->lflag && (params->dflag || params->fflag))); | |
655 | } | |
656 | ||
a93648d1 GMF |
657 | U_BOOT_IMAGE_TYPE( |
658 | fitimage, | |
659 | "FIT Image support", | |
660 | sizeof(image_header_t), | |
661 | (void *)&header, | |
662 | fit_check_params, | |
663 | fit_verify_header, | |
664 | fit_print_contents, | |
665 | NULL, | |
39931f96 | 666 | fit_extract_contents, |
a93648d1 GMF |
667 | fit_check_image_types, |
668 | fit_handle_file, | |
669 | NULL /* FIT images use DTB header */ | |
670 | ); |