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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 */ | |
5847084f VC |
54 | if (params->datafile) { |
55 | time_t time = imagetool_get_source_date(params, sbuf.st_mtime); | |
56 | ret = fit_set_timestamp(ptr, 0, time); | |
57 | } | |
a9468115 SG |
58 | |
59 | if (!ret) { | |
60 | ret = fit_add_verification_data(params->keydir, dest_blob, ptr, | |
61 | params->comment, | |
62 | params->require_keys); | |
63 | } | |
64 | ||
65 | if (dest_blob) { | |
66 | munmap(dest_blob, destfd_size); | |
67 | close(destfd); | |
68 | } | |
69 | ||
70 | err_keydest: | |
71 | munmap(ptr, sbuf.st_size); | |
72 | close(tfd); | |
73 | ||
74 | return ret; | |
75 | } | |
76 | ||
8e35bb07 SG |
77 | /** |
78 | * fit_calc_size() - Calculate the approximate size of the FIT we will generate | |
79 | */ | |
80 | static int fit_calc_size(struct image_tool_params *params) | |
81 | { | |
fb4cce0f | 82 | struct content_info *cont; |
8e35bb07 SG |
83 | int size, total_size; |
84 | ||
85 | size = imagetool_get_filesize(params, params->datafile); | |
86 | if (size < 0) | |
87 | return -1; | |
8e35bb07 | 88 | total_size = size; |
0f7c6cdc TV |
89 | |
90 | if (params->fit_ramdisk) { | |
91 | size = imagetool_get_filesize(params, params->fit_ramdisk); | |
92 | if (size < 0) | |
93 | return -1; | |
94 | total_size += size; | |
95 | } | |
96 | ||
fb4cce0f SG |
97 | for (cont = params->content_head; cont; cont = cont->next) { |
98 | size = imagetool_get_filesize(params, cont->fname); | |
99 | if (size < 0) | |
100 | return -1; | |
8e35bb07 | 101 | |
fb4cce0f SG |
102 | /* Add space for properties */ |
103 | total_size += size + 300; | |
104 | } | |
8e35bb07 SG |
105 | |
106 | /* Add plenty of space for headers, properties, nodes, etc. */ | |
107 | total_size += 4096; | |
108 | ||
109 | return total_size; | |
110 | } | |
111 | ||
112 | static int fdt_property_file(struct image_tool_params *params, | |
113 | void *fdt, const char *name, const char *fname) | |
114 | { | |
115 | struct stat sbuf; | |
116 | void *ptr; | |
117 | int ret; | |
118 | int fd; | |
119 | ||
120 | fd = open(fname, O_RDWR | O_BINARY); | |
121 | if (fd < 0) { | |
122 | fprintf(stderr, "%s: Can't open %s: %s\n", | |
123 | params->cmdname, fname, strerror(errno)); | |
124 | return -1; | |
125 | } | |
126 | ||
127 | if (fstat(fd, &sbuf) < 0) { | |
128 | fprintf(stderr, "%s: Can't stat %s: %s\n", | |
129 | params->cmdname, fname, strerror(errno)); | |
130 | goto err; | |
131 | } | |
132 | ||
133 | ret = fdt_property_placeholder(fdt, "data", sbuf.st_size, &ptr); | |
134 | if (ret) | |
3bd3a54a | 135 | goto err; |
8e35bb07 SG |
136 | ret = read(fd, ptr, sbuf.st_size); |
137 | if (ret != sbuf.st_size) { | |
138 | fprintf(stderr, "%s: Can't read %s: %s\n", | |
139 | params->cmdname, fname, strerror(errno)); | |
140 | goto err; | |
141 | } | |
3bd3a54a | 142 | close(fd); |
8e35bb07 SG |
143 | |
144 | return 0; | |
145 | err: | |
146 | close(fd); | |
147 | return -1; | |
148 | } | |
149 | ||
150 | static int fdt_property_strf(void *fdt, const char *name, const char *fmt, ...) | |
151 | { | |
152 | char str[100]; | |
153 | va_list ptr; | |
154 | ||
155 | va_start(ptr, fmt); | |
156 | vsnprintf(str, sizeof(str), fmt, ptr); | |
157 | va_end(ptr); | |
158 | return fdt_property_string(fdt, name, str); | |
159 | } | |
160 | ||
fb4cce0f SG |
161 | static void get_basename(char *str, int size, const char *fname) |
162 | { | |
163 | const char *p, *start, *end; | |
164 | int len; | |
165 | ||
166 | /* | |
167 | * Use the base name as the 'name' field. So for example: | |
168 | * | |
169 | * "arch/arm/dts/sun7i-a20-bananapro.dtb" | |
170 | * becomes "sun7i-a20-bananapro" | |
171 | */ | |
172 | p = strrchr(fname, '/'); | |
173 | start = p ? p + 1 : fname; | |
174 | p = strrchr(fname, '.'); | |
175 | end = p ? p : fname + strlen(fname); | |
176 | len = end - start; | |
177 | if (len >= size) | |
178 | len = size - 1; | |
179 | memcpy(str, start, len); | |
180 | str[len] = '\0'; | |
181 | } | |
182 | ||
8e35bb07 SG |
183 | /** |
184 | * fit_write_images() - Write out a list of images to the FIT | |
185 | * | |
fb4cce0f SG |
186 | * We always include the main image (params->datafile). If there are device |
187 | * tree files, we include an fdt@ node for each of those too. | |
8e35bb07 SG |
188 | */ |
189 | static int fit_write_images(struct image_tool_params *params, char *fdt) | |
190 | { | |
fb4cce0f | 191 | struct content_info *cont; |
8e35bb07 SG |
192 | const char *typename; |
193 | char str[100]; | |
fb4cce0f | 194 | int upto; |
8e35bb07 SG |
195 | int ret; |
196 | ||
197 | fdt_begin_node(fdt, "images"); | |
198 | ||
199 | /* First the main image */ | |
200 | typename = genimg_get_type_short_name(params->fit_image_type); | |
201 | snprintf(str, sizeof(str), "%s@1", typename); | |
202 | fdt_begin_node(fdt, str); | |
203 | fdt_property_string(fdt, "description", params->imagename); | |
204 | fdt_property_string(fdt, "type", typename); | |
3a45f38d SG |
205 | fdt_property_string(fdt, "arch", |
206 | genimg_get_arch_short_name(params->arch)); | |
8e35bb07 SG |
207 | fdt_property_string(fdt, "os", genimg_get_os_short_name(params->os)); |
208 | fdt_property_string(fdt, "compression", | |
209 | genimg_get_comp_short_name(params->comp)); | |
210 | fdt_property_u32(fdt, "load", params->addr); | |
211 | fdt_property_u32(fdt, "entry", params->ep); | |
212 | ||
213 | /* | |
214 | * Put data last since it is large. SPL may only load the first part | |
215 | * of the DT, so this way it can access all the above fields. | |
216 | */ | |
217 | ret = fdt_property_file(params, fdt, "data", params->datafile); | |
218 | if (ret) | |
219 | return ret; | |
220 | fdt_end_node(fdt); | |
221 | ||
fb4cce0f SG |
222 | /* Now the device tree files if available */ |
223 | upto = 0; | |
224 | for (cont = params->content_head; cont; cont = cont->next) { | |
225 | if (cont->type != IH_TYPE_FLATDT) | |
226 | continue; | |
227 | snprintf(str, sizeof(str), "%s@%d", FIT_FDT_PROP, ++upto); | |
228 | fdt_begin_node(fdt, str); | |
229 | ||
230 | get_basename(str, sizeof(str), cont->fname); | |
231 | fdt_property_string(fdt, "description", str); | |
232 | ret = fdt_property_file(params, fdt, "data", cont->fname); | |
233 | if (ret) | |
234 | return ret; | |
235 | fdt_property_string(fdt, "type", typename); | |
236 | fdt_property_string(fdt, "arch", | |
237 | genimg_get_arch_short_name(params->arch)); | |
238 | fdt_property_string(fdt, "compression", | |
239 | genimg_get_comp_short_name(IH_COMP_NONE)); | |
240 | fdt_end_node(fdt); | |
241 | } | |
242 | ||
0f7c6cdc TV |
243 | /* And a ramdisk file if available */ |
244 | if (params->fit_ramdisk) { | |
245 | fdt_begin_node(fdt, FIT_RAMDISK_PROP "@1"); | |
246 | ||
247 | fdt_property_string(fdt, "type", FIT_RAMDISK_PROP); | |
248 | fdt_property_string(fdt, "os", genimg_get_os_short_name(params->os)); | |
249 | ||
250 | ret = fdt_property_file(params, fdt, "data", params->fit_ramdisk); | |
251 | if (ret) | |
252 | return ret; | |
253 | ||
254 | fdt_end_node(fdt); | |
255 | } | |
256 | ||
8e35bb07 SG |
257 | fdt_end_node(fdt); |
258 | ||
259 | return 0; | |
260 | } | |
261 | ||
262 | /** | |
263 | * fit_write_configs() - Write out a list of configurations to the FIT | |
264 | * | |
fb4cce0f SG |
265 | * If there are device tree files, we include a configuration for each, which |
266 | * selects the main image (params->datafile) and its corresponding device | |
267 | * tree file. | |
268 | * | |
269 | * Otherwise we just create a configuration with the main image in it. | |
8e35bb07 SG |
270 | */ |
271 | static void fit_write_configs(struct image_tool_params *params, char *fdt) | |
272 | { | |
fb4cce0f | 273 | struct content_info *cont; |
8e35bb07 SG |
274 | const char *typename; |
275 | char str[100]; | |
fb4cce0f | 276 | int upto; |
8e35bb07 SG |
277 | |
278 | fdt_begin_node(fdt, "configurations"); | |
279 | fdt_property_string(fdt, "default", "conf@1"); | |
280 | ||
fb4cce0f SG |
281 | upto = 0; |
282 | for (cont = params->content_head; cont; cont = cont->next) { | |
283 | if (cont->type != IH_TYPE_FLATDT) | |
284 | continue; | |
285 | typename = genimg_get_type_short_name(cont->type); | |
286 | snprintf(str, sizeof(str), "conf@%d", ++upto); | |
287 | fdt_begin_node(fdt, str); | |
288 | ||
289 | get_basename(str, sizeof(str), cont->fname); | |
290 | fdt_property_string(fdt, "description", str); | |
291 | ||
292 | typename = genimg_get_type_short_name(params->fit_image_type); | |
293 | snprintf(str, sizeof(str), "%s@1", typename); | |
294 | fdt_property_string(fdt, typename, str); | |
295 | ||
0f7c6cdc TV |
296 | if (params->fit_ramdisk) |
297 | fdt_property_string(fdt, FIT_RAMDISK_PROP, | |
298 | FIT_RAMDISK_PROP "@1"); | |
299 | ||
fb4cce0f SG |
300 | snprintf(str, sizeof(str), FIT_FDT_PROP "@%d", upto); |
301 | fdt_property_string(fdt, FIT_FDT_PROP, str); | |
302 | fdt_end_node(fdt); | |
303 | } | |
0f7c6cdc | 304 | |
fb4cce0f SG |
305 | if (!upto) { |
306 | fdt_begin_node(fdt, "conf@1"); | |
307 | typename = genimg_get_type_short_name(params->fit_image_type); | |
308 | snprintf(str, sizeof(str), "%s@1", typename); | |
309 | fdt_property_string(fdt, typename, str); | |
0f7c6cdc TV |
310 | |
311 | if (params->fit_ramdisk) | |
312 | fdt_property_string(fdt, FIT_RAMDISK_PROP, | |
313 | FIT_RAMDISK_PROP "@1"); | |
314 | ||
fb4cce0f SG |
315 | fdt_end_node(fdt); |
316 | } | |
8e35bb07 SG |
317 | |
318 | fdt_end_node(fdt); | |
319 | } | |
320 | ||
321 | static int fit_build_fdt(struct image_tool_params *params, char *fdt, int size) | |
322 | { | |
323 | int ret; | |
324 | ||
325 | ret = fdt_create(fdt, size); | |
326 | if (ret) | |
327 | return ret; | |
328 | fdt_finish_reservemap(fdt); | |
329 | fdt_begin_node(fdt, ""); | |
330 | fdt_property_strf(fdt, "description", | |
331 | "%s image with one or more FDT blobs", | |
332 | genimg_get_type_name(params->fit_image_type)); | |
333 | fdt_property_strf(fdt, "creator", "U-Boot mkimage %s", PLAIN_VERSION); | |
334 | fdt_property_u32(fdt, "#address-cells", 1); | |
335 | ret = fit_write_images(params, fdt); | |
336 | if (ret) | |
337 | return ret; | |
338 | fit_write_configs(params, fdt); | |
339 | fdt_end_node(fdt); | |
340 | ret = fdt_finish(fdt); | |
341 | if (ret) | |
342 | return ret; | |
343 | ||
344 | return fdt_totalsize(fdt); | |
345 | } | |
346 | ||
347 | static int fit_build(struct image_tool_params *params, const char *fname) | |
348 | { | |
349 | char *buf; | |
350 | int size; | |
351 | int ret; | |
352 | int fd; | |
353 | ||
354 | size = fit_calc_size(params); | |
355 | if (size < 0) | |
356 | return -1; | |
357 | buf = malloc(size); | |
358 | if (!buf) { | |
359 | fprintf(stderr, "%s: Out of memory (%d bytes)\n", | |
360 | params->cmdname, size); | |
361 | return -1; | |
362 | } | |
363 | ret = fit_build_fdt(params, buf, size); | |
364 | if (ret < 0) { | |
365 | fprintf(stderr, "%s: Failed to build FIT image\n", | |
366 | params->cmdname); | |
7b0bbd88 | 367 | goto err_buf; |
8e35bb07 SG |
368 | } |
369 | size = ret; | |
370 | fd = open(fname, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0666); | |
371 | if (fd < 0) { | |
372 | fprintf(stderr, "%s: Can't open %s: %s\n", | |
373 | params->cmdname, fname, strerror(errno)); | |
374 | goto err; | |
375 | } | |
376 | ret = write(fd, buf, size); | |
377 | if (ret != size) { | |
378 | fprintf(stderr, "%s: Can't write %s: %s\n", | |
379 | params->cmdname, fname, strerror(errno)); | |
8e35bb07 SG |
380 | goto err; |
381 | } | |
382 | close(fd); | |
7b0bbd88 | 383 | free(buf); |
8e35bb07 SG |
384 | |
385 | return 0; | |
386 | err: | |
7b0bbd88 SG |
387 | close(fd); |
388 | err_buf: | |
8e35bb07 SG |
389 | free(buf); |
390 | return -1; | |
391 | } | |
392 | ||
722ebc8f SG |
393 | /** |
394 | * fit_extract_data() - Move all data outside the FIT | |
395 | * | |
396 | * This takes a normal FIT file and removes all the 'data' properties from it. | |
397 | * The data is placed in an area after the FIT so that it can be accessed | |
398 | * using an offset into that area. The 'data' properties turn into | |
399 | * 'data-offset' properties. | |
400 | * | |
401 | * This function cannot cope with FITs with 'data-offset' properties. All | |
402 | * data must be in 'data' properties on entry. | |
403 | */ | |
404 | static int fit_extract_data(struct image_tool_params *params, const char *fname) | |
405 | { | |
406 | void *buf; | |
407 | int buf_ptr; | |
408 | int fit_size, new_size; | |
409 | int fd; | |
410 | struct stat sbuf; | |
411 | void *fdt; | |
412 | int ret; | |
413 | int images; | |
414 | int node; | |
415 | ||
416 | fd = mmap_fdt(params->cmdname, fname, 0, &fdt, &sbuf, false); | |
417 | if (fd < 0) | |
418 | return -EIO; | |
419 | fit_size = fdt_totalsize(fdt); | |
420 | ||
421 | /* Allocate space to hold the image data we will extract */ | |
422 | buf = malloc(fit_size); | |
423 | if (!buf) { | |
424 | ret = -ENOMEM; | |
b97d71e2 | 425 | goto err_munmap; |
722ebc8f SG |
426 | } |
427 | buf_ptr = 0; | |
428 | ||
429 | images = fdt_path_offset(fdt, FIT_IMAGES_PATH); | |
430 | if (images < 0) { | |
431 | debug("%s: Cannot find /images node: %d\n", __func__, images); | |
432 | ret = -EINVAL; | |
b97d71e2 | 433 | goto err_munmap; |
722ebc8f SG |
434 | } |
435 | ||
436 | for (node = fdt_first_subnode(fdt, images); | |
437 | node >= 0; | |
438 | node = fdt_next_subnode(fdt, node)) { | |
439 | const char *data; | |
440 | int len; | |
441 | ||
442 | data = fdt_getprop(fdt, node, "data", &len); | |
443 | if (!data) | |
444 | continue; | |
445 | memcpy(buf + buf_ptr, data, len); | |
446 | debug("Extracting data size %x\n", len); | |
447 | ||
448 | ret = fdt_delprop(fdt, node, "data"); | |
449 | if (ret) { | |
450 | ret = -EPERM; | |
b97d71e2 | 451 | goto err_munmap; |
722ebc8f | 452 | } |
f8f9107d TR |
453 | if (params->external_offset > 0) { |
454 | /* An external offset positions the data absolutely. */ | |
455 | fdt_setprop_u32(fdt, node, "data-position", | |
456 | params->external_offset + buf_ptr); | |
457 | } else { | |
458 | fdt_setprop_u32(fdt, node, "data-offset", buf_ptr); | |
459 | } | |
722ebc8f SG |
460 | fdt_setprop_u32(fdt, node, "data-size", len); |
461 | ||
462 | buf_ptr += (len + 3) & ~3; | |
463 | } | |
464 | ||
465 | /* Pack the FDT and place the data after it */ | |
466 | fdt_pack(fdt); | |
467 | ||
468 | debug("Size reduced from %x to %x\n", fit_size, fdt_totalsize(fdt)); | |
469 | debug("External data size %x\n", buf_ptr); | |
470 | new_size = fdt_totalsize(fdt); | |
471 | new_size = (new_size + 3) & ~3; | |
472 | munmap(fdt, sbuf.st_size); | |
473 | ||
474 | if (ftruncate(fd, new_size)) { | |
475 | debug("%s: Failed to truncate file: %s\n", __func__, | |
476 | strerror(errno)); | |
477 | ret = -EIO; | |
478 | goto err; | |
479 | } | |
f8f9107d TR |
480 | |
481 | /* Check if an offset for the external data was set. */ | |
482 | if (params->external_offset > 0) { | |
483 | if (params->external_offset < new_size) { | |
484 | debug("External offset %x overlaps FIT length %x", | |
485 | params->external_offset, new_size); | |
486 | ret = -EINVAL; | |
487 | goto err; | |
488 | } | |
489 | new_size = params->external_offset; | |
490 | } | |
722ebc8f SG |
491 | if (lseek(fd, new_size, SEEK_SET) < 0) { |
492 | debug("%s: Failed to seek to end of file: %s\n", __func__, | |
493 | strerror(errno)); | |
494 | ret = -EIO; | |
495 | goto err; | |
496 | } | |
497 | if (write(fd, buf, buf_ptr) != buf_ptr) { | |
498 | debug("%s: Failed to write external data to file %s\n", | |
499 | __func__, strerror(errno)); | |
500 | ret = -EIO; | |
501 | goto err; | |
502 | } | |
b97d71e2 SG |
503 | close(fd); |
504 | return 0; | |
722ebc8f | 505 | |
b97d71e2 SG |
506 | err_munmap: |
507 | munmap(fdt, sbuf.st_size); | |
722ebc8f | 508 | err: |
21c2975a SG |
509 | if (buf) |
510 | free(buf); | |
722ebc8f SG |
511 | close(fd); |
512 | return ret; | |
513 | } | |
514 | ||
529fd188 SG |
515 | static int fit_import_data(struct image_tool_params *params, const char *fname) |
516 | { | |
517 | void *fdt, *old_fdt; | |
518 | int fit_size, new_size, size, data_base; | |
519 | int fd; | |
520 | struct stat sbuf; | |
521 | int ret; | |
522 | int images; | |
523 | int node; | |
524 | ||
525 | fd = mmap_fdt(params->cmdname, fname, 0, &old_fdt, &sbuf, false); | |
526 | if (fd < 0) | |
527 | return -EIO; | |
528 | fit_size = fdt_totalsize(old_fdt); | |
529 | data_base = (fit_size + 3) & ~3; | |
530 | ||
531 | /* Allocate space to hold the new FIT */ | |
532 | size = sbuf.st_size + 16384; | |
533 | fdt = malloc(size); | |
534 | if (!fdt) { | |
535 | fprintf(stderr, "%s: Failed to allocate memory (%d bytes)\n", | |
536 | __func__, size); | |
537 | ret = -ENOMEM; | |
538 | goto err; | |
539 | } | |
540 | ret = fdt_open_into(old_fdt, fdt, size); | |
541 | if (ret) { | |
542 | debug("%s: Failed to expand FIT: %s\n", __func__, | |
543 | fdt_strerror(errno)); | |
544 | ret = -EINVAL; | |
545 | goto err; | |
546 | } | |
547 | ||
548 | images = fdt_path_offset(fdt, FIT_IMAGES_PATH); | |
549 | if (images < 0) { | |
550 | debug("%s: Cannot find /images node: %d\n", __func__, images); | |
551 | ret = -EINVAL; | |
552 | goto err; | |
553 | } | |
554 | ||
555 | for (node = fdt_first_subnode(fdt, images); | |
556 | node >= 0; | |
557 | node = fdt_next_subnode(fdt, node)) { | |
558 | int buf_ptr; | |
559 | int len; | |
560 | ||
561 | buf_ptr = fdtdec_get_int(fdt, node, "data-offset", -1); | |
562 | len = fdtdec_get_int(fdt, node, "data-size", -1); | |
563 | if (buf_ptr == -1 || len == -1) | |
564 | continue; | |
565 | debug("Importing data size %x\n", len); | |
566 | ||
567 | ret = fdt_setprop(fdt, node, "data", fdt + data_base + buf_ptr, | |
568 | len); | |
569 | if (ret) { | |
570 | debug("%s: Failed to write property: %s\n", __func__, | |
571 | fdt_strerror(ret)); | |
572 | ret = -EINVAL; | |
573 | goto err; | |
574 | } | |
575 | } | |
576 | ||
9cff2d1e | 577 | munmap(old_fdt, sbuf.st_size); |
529fd188 SG |
578 | close(fd); |
579 | ||
580 | /* Pack the FDT and place the data after it */ | |
581 | fdt_pack(fdt); | |
582 | ||
583 | new_size = fdt_totalsize(fdt); | |
584 | debug("Size expanded from %x to %x\n", fit_size, new_size); | |
585 | ||
586 | fd = open(fname, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0666); | |
587 | if (fd < 0) { | |
588 | fprintf(stderr, "%s: Can't open %s: %s\n", | |
589 | params->cmdname, fname, strerror(errno)); | |
5b15a259 SG |
590 | free(fdt); |
591 | return -EIO; | |
529fd188 SG |
592 | } |
593 | if (write(fd, fdt, new_size) != new_size) { | |
594 | debug("%s: Failed to write external data to file %s\n", | |
595 | __func__, strerror(errno)); | |
596 | ret = -EIO; | |
597 | goto err; | |
598 | } | |
529fd188 SG |
599 | |
600 | ret = 0; | |
601 | ||
602 | err: | |
6e0ffce6 | 603 | free(fdt); |
529fd188 SG |
604 | close(fd); |
605 | return ret; | |
606 | } | |
607 | ||
89a4d6b1 PW |
608 | /** |
609 | * fit_handle_file - main FIT file processing function | |
610 | * | |
611 | * fit_handle_file() runs dtc to convert .its to .itb, includes | |
612 | * binary data, updates timestamp property and calculates hashes. | |
613 | * | |
614 | * datafile - .its file | |
615 | * imagefile - .itb file | |
616 | * | |
617 | * returns: | |
618 | * only on success, otherwise calls exit (EXIT_FAILURE); | |
619 | */ | |
f86ed6a8 | 620 | static int fit_handle_file(struct image_tool_params *params) |
89a4d6b1 PW |
621 | { |
622 | char tmpfile[MKIMAGE_MAX_TMPFILE_LEN]; | |
623 | char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN]; | |
a9468115 SG |
624 | size_t size_inc; |
625 | int ret; | |
89a4d6b1 PW |
626 | |
627 | /* Flattened Image Tree (FIT) format handling */ | |
628 | debug ("FIT format handling\n"); | |
629 | ||
630 | /* call dtc to include binary properties into the tmp file */ | |
631 | if (strlen (params->imagefile) + | |
632 | strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 > sizeof (tmpfile)) { | |
633 | fprintf (stderr, "%s: Image file name (%s) too long, " | |
634 | "can't create tmpfile", | |
635 | params->imagefile, params->cmdname); | |
636 | return (EXIT_FAILURE); | |
637 | } | |
638 | sprintf (tmpfile, "%s%s", params->imagefile, MKIMAGE_TMPFILE_SUFFIX); | |
639 | ||
95d77b44 | 640 | /* We either compile the source file, or use the existing FIT image */ |
8e35bb07 SG |
641 | if (params->auto_its) { |
642 | if (fit_build(params, tmpfile)) { | |
643 | fprintf(stderr, "%s: failed to build FIT\n", | |
644 | params->cmdname); | |
645 | return EXIT_FAILURE; | |
646 | } | |
647 | *cmd = '\0'; | |
648 | } else if (params->datafile) { | |
95d77b44 SG |
649 | /* dtc -I dts -O dtb -p 500 datafile > tmpfile */ |
650 | snprintf(cmd, sizeof(cmd), "%s %s %s > %s", | |
651 | MKIMAGE_DTC, params->dtc, params->datafile, tmpfile); | |
652 | debug("Trying to execute \"%s\"\n", cmd); | |
653 | } else { | |
654 | snprintf(cmd, sizeof(cmd), "cp %s %s", | |
655 | params->imagefile, tmpfile); | |
656 | } | |
8e35bb07 | 657 | if (*cmd && system(cmd) == -1) { |
89a4d6b1 PW |
658 | fprintf (stderr, "%s: system(%s) failed: %s\n", |
659 | params->cmdname, cmd, strerror(errno)); | |
aa6d6db4 | 660 | goto err_system; |
89a4d6b1 PW |
661 | } |
662 | ||
529fd188 SG |
663 | /* Move the data so it is internal to the FIT, if needed */ |
664 | ret = fit_import_data(params, tmpfile); | |
665 | if (ret) | |
666 | goto err_system; | |
667 | ||
a9468115 SG |
668 | /* |
669 | * Set hashes for images in the blob. Unfortunately we may need more | |
670 | * space in either FDT, so keep trying until we succeed. | |
671 | * | |
672 | * Note: this is pretty inefficient for signing, since we must | |
673 | * calculate the signature every time. It would be better to calculate | |
674 | * all the data and then store it in a separate step. However, this | |
675 | * would be considerably more complex to implement. Generally a few | |
676 | * steps of this loop is enough to sign with several keys. | |
677 | */ | |
678 | for (size_inc = 0; size_inc < 64 * 1024; size_inc += 1024) { | |
679 | ret = fit_add_file_data(params, size_inc, tmpfile); | |
680 | if (!ret || ret != -ENOSPC) | |
681 | break; | |
e29495d3 SG |
682 | } |
683 | ||
a9468115 | 684 | if (ret) { |
655cc696 SG |
685 | fprintf(stderr, "%s Can't add hashes to FIT blob: %d\n", |
686 | params->cmdname, ret); | |
a9468115 | 687 | goto err_system; |
e29495d3 | 688 | } |
89a4d6b1 | 689 | |
722ebc8f SG |
690 | /* Move the data so it is external to the FIT, if requested */ |
691 | if (params->external_data) { | |
692 | ret = fit_extract_data(params, tmpfile); | |
693 | if (ret) | |
694 | goto err_system; | |
695 | } | |
696 | ||
89a4d6b1 PW |
697 | if (rename (tmpfile, params->imagefile) == -1) { |
698 | fprintf (stderr, "%s: Can't rename %s to %s: %s\n", | |
699 | params->cmdname, tmpfile, params->imagefile, | |
700 | strerror (errno)); | |
701 | unlink (tmpfile); | |
702 | unlink (params->imagefile); | |
a9468115 | 703 | return EXIT_FAILURE; |
89a4d6b1 | 704 | } |
a9468115 | 705 | return EXIT_SUCCESS; |
aa6d6db4 | 706 | |
aa6d6db4 SG |
707 | err_system: |
708 | unlink(tmpfile); | |
709 | return -1; | |
89a4d6b1 PW |
710 | } |
711 | ||
39931f96 GMF |
712 | /** |
713 | * fit_image_extract - extract a FIT component image | |
714 | * @fit: pointer to the FIT format image header | |
715 | * @image_noffset: offset of the component image node | |
716 | * @file_name: name of the file to store the FIT sub-image | |
717 | * | |
718 | * returns: | |
719 | * zero in case of success or a negative value if fail. | |
720 | */ | |
721 | static int fit_image_extract( | |
722 | const void *fit, | |
723 | int image_noffset, | |
724 | const char *file_name) | |
725 | { | |
726 | const void *file_data; | |
727 | size_t file_size = 0; | |
728 | ||
729 | /* get the "data" property of component at offset "image_noffset" */ | |
730 | fit_image_get_data(fit, image_noffset, &file_data, &file_size); | |
731 | ||
732 | /* save the "file_data" into the file specified by "file_name" */ | |
733 | return imagetool_save_subimage(file_name, (ulong) file_data, file_size); | |
734 | } | |
735 | ||
736 | /** | |
737 | * fit_extract_contents - retrieve a sub-image component from the FIT image | |
738 | * @ptr: pointer to the FIT format image header | |
739 | * @params: command line parameters | |
740 | * | |
741 | * returns: | |
742 | * zero in case of success or a negative value if fail. | |
743 | */ | |
744 | static int fit_extract_contents(void *ptr, struct image_tool_params *params) | |
745 | { | |
746 | int images_noffset; | |
747 | int noffset; | |
748 | int ndepth; | |
749 | const void *fit = ptr; | |
750 | int count = 0; | |
751 | const char *p; | |
752 | ||
753 | /* Indent string is defined in header image.h */ | |
754 | p = IMAGE_INDENT_STRING; | |
755 | ||
756 | if (!fit_check_format(fit)) { | |
757 | printf("Bad FIT image format\n"); | |
758 | return -1; | |
759 | } | |
760 | ||
761 | /* Find images parent node offset */ | |
762 | images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH); | |
763 | if (images_noffset < 0) { | |
764 | printf("Can't find images parent node '%s' (%s)\n", | |
765 | FIT_IMAGES_PATH, fdt_strerror(images_noffset)); | |
766 | return -1; | |
767 | } | |
768 | ||
769 | /* Avoid any overrun */ | |
770 | count = fit_get_subimage_count(fit, images_noffset); | |
771 | if ((params->pflag < 0) || (count <= params->pflag)) { | |
772 | printf("No such component at '%d'\n", params->pflag); | |
773 | return -1; | |
774 | } | |
775 | ||
776 | /* Process its subnodes, extract the desired component from image */ | |
777 | for (ndepth = 0, count = 0, | |
778 | noffset = fdt_next_node(fit, images_noffset, &ndepth); | |
779 | (noffset >= 0) && (ndepth > 0); | |
780 | noffset = fdt_next_node(fit, noffset, &ndepth)) { | |
781 | if (ndepth == 1) { | |
782 | /* | |
783 | * Direct child node of the images parent node, | |
784 | * i.e. component image node. | |
785 | */ | |
786 | if (params->pflag == count) { | |
787 | printf("Extracted:\n%s Image %u (%s)\n", p, | |
788 | count, fit_get_name(fit, noffset, NULL)); | |
789 | ||
790 | fit_image_print(fit, noffset, p); | |
791 | ||
792 | return fit_image_extract(fit, noffset, | |
793 | params->outfile); | |
794 | } | |
795 | ||
796 | count++; | |
797 | } | |
798 | } | |
799 | ||
800 | return 0; | |
801 | } | |
802 | ||
f86ed6a8 | 803 | static int fit_check_params(struct image_tool_params *params) |
89a4d6b1 | 804 | { |
8e35bb07 SG |
805 | if (params->auto_its) |
806 | return 0; | |
89a4d6b1 PW |
807 | return ((params->dflag && (params->fflag || params->lflag)) || |
808 | (params->fflag && (params->dflag || params->lflag)) || | |
809 | (params->lflag && (params->dflag || params->fflag))); | |
810 | } | |
811 | ||
a93648d1 GMF |
812 | U_BOOT_IMAGE_TYPE( |
813 | fitimage, | |
814 | "FIT Image support", | |
815 | sizeof(image_header_t), | |
816 | (void *)&header, | |
817 | fit_check_params, | |
818 | fit_verify_header, | |
819 | fit_print_contents, | |
820 | NULL, | |
39931f96 | 821 | fit_extract_contents, |
a93648d1 GMF |
822 | fit_check_image_types, |
823 | fit_handle_file, | |
824 | NULL /* FIT images use DTB header */ | |
825 | ); |