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Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +05301/*
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 *
Wolfgang Denk1a459662013-07-08 09:37:19 +020014 * SPDX-License-Identifier: GPL-2.0+
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053015 */
16
Guilherme Maciel Ferreiraf86ed6a2013-12-01 12:43:10 -070017#include "imagetool.h"
Heiko Schocher6bf4ca02014-03-03 12:19:29 +010018#include "fit_common.h"
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053019#include "mkimage.h"
20#include <image.h>
Simon Glass8e35bb02016-02-22 22:55:51 -070021#include <stdarg.h>
22#include <version.h>
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053023#include <u-boot/crc.h>
24
25static image_header_t header;
26
Simon Glassa9468112014-06-02 22:04:53 -060027static 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
68err_keydest:
69 munmap(ptr, sbuf.st_size);
70 close(tfd);
71
72 return ret;
73}
74
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053075/**
Simon Glass8e35bb02016-02-22 22:55:51 -070076 * fit_calc_size() - Calculate the approximate size of the FIT we will generate
77 */
78static int fit_calc_size(struct image_tool_params *params)
79{
Simon Glassfb4cce02016-02-22 22:55:52 -070080 struct content_info *cont;
Simon Glass8e35bb02016-02-22 22:55:51 -070081 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;
Simon Glassfb4cce02016-02-22 22:55:52 -070088 for (cont = params->content_head; cont; cont = cont->next) {
89 size = imagetool_get_filesize(params, cont->fname);
90 if (size < 0)
91 return -1;
Simon Glass8e35bb02016-02-22 22:55:51 -070092
Simon Glassfb4cce02016-02-22 22:55:52 -070093 /* Add space for properties */
94 total_size += size + 300;
95 }
Simon Glass8e35bb02016-02-22 22:55:51 -070096
97 /* Add plenty of space for headers, properties, nodes, etc. */
98 total_size += 4096;
99
100 return total_size;
101}
102
103static 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;
135err:
136 close(fd);
137 return -1;
138}
139
140static 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
Simon Glassfb4cce02016-02-22 22:55:52 -0700151static 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
Simon Glass8e35bb02016-02-22 22:55:51 -0700173/**
174 * fit_write_images() - Write out a list of images to the FIT
175 *
Simon Glassfb4cce02016-02-22 22:55:52 -0700176 * 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.
Simon Glass8e35bb02016-02-22 22:55:51 -0700178 */
179static int fit_write_images(struct image_tool_params *params, char *fdt)
180{
Simon Glassfb4cce02016-02-22 22:55:52 -0700181 struct content_info *cont;
Simon Glass8e35bb02016-02-22 22:55:51 -0700182 const char *typename;
183 char str[100];
Simon Glassfb4cce02016-02-22 22:55:52 -0700184 int upto;
Simon Glass8e35bb02016-02-22 22:55:51 -0700185 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
Simon Glassfb4cce02016-02-22 22:55:52 -0700211 /* 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
Simon Glass8e35bb02016-02-22 22:55:51 -0700232 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 *
Simon Glassfb4cce02016-02-22 22:55:52 -0700240 * 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.
Simon Glass8e35bb02016-02-22 22:55:51 -0700245 */
246static void fit_write_configs(struct image_tool_params *params, char *fdt)
247{
Simon Glassfb4cce02016-02-22 22:55:52 -0700248 struct content_info *cont;
Simon Glass8e35bb02016-02-22 22:55:51 -0700249 const char *typename;
250 char str[100];
Simon Glassfb4cce02016-02-22 22:55:52 -0700251 int upto;
Simon Glass8e35bb02016-02-22 22:55:51 -0700252
253 fdt_begin_node(fdt, "configurations");
254 fdt_property_string(fdt, "default", "conf@1");
255
Simon Glassfb4cce02016-02-22 22:55:52 -0700256 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 }
Simon Glass8e35bb02016-02-22 22:55:51 -0700282
283 fdt_end_node(fdt);
284}
285
286static 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
312static 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);
Simon Glass7b0bbd82016-03-16 07:45:41 -0600332 goto err_buf;
Simon Glass8e35bb02016-02-22 22:55:51 -0700333 }
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);
Simon Glass7b0bbd82016-03-16 07:45:41 -0600349 free(buf);
Simon Glass8e35bb02016-02-22 22:55:51 -0700350
351 return 0;
352err:
Simon Glass7b0bbd82016-03-16 07:45:41 -0600353 close(fd);
354err_buf:
Simon Glass8e35bb02016-02-22 22:55:51 -0700355 free(buf);
356 return -1;
357}
358
359/**
Simon Glass722ebc82016-02-22 22:55:53 -0700360 * fit_extract_data() - Move all data outside the FIT
361 *
362 * This takes a normal FIT file and removes all the 'data' properties from it.
363 * The data is placed in an area after the FIT so that it can be accessed
364 * using an offset into that area. The 'data' properties turn into
365 * 'data-offset' properties.
366 *
367 * This function cannot cope with FITs with 'data-offset' properties. All
368 * data must be in 'data' properties on entry.
369 */
370static int fit_extract_data(struct image_tool_params *params, const char *fname)
371{
372 void *buf;
373 int buf_ptr;
374 int fit_size, new_size;
375 int fd;
376 struct stat sbuf;
377 void *fdt;
378 int ret;
379 int images;
380 int node;
381
382 fd = mmap_fdt(params->cmdname, fname, 0, &fdt, &sbuf, false);
383 if (fd < 0)
384 return -EIO;
385 fit_size = fdt_totalsize(fdt);
386
387 /* Allocate space to hold the image data we will extract */
388 buf = malloc(fit_size);
389 if (!buf) {
390 ret = -ENOMEM;
Simon Glassb97d71e2016-03-16 07:45:39 -0600391 goto err_munmap;
Simon Glass722ebc82016-02-22 22:55:53 -0700392 }
393 buf_ptr = 0;
394
395 images = fdt_path_offset(fdt, FIT_IMAGES_PATH);
396 if (images < 0) {
397 debug("%s: Cannot find /images node: %d\n", __func__, images);
398 ret = -EINVAL;
Simon Glassb97d71e2016-03-16 07:45:39 -0600399 goto err_munmap;
Simon Glass722ebc82016-02-22 22:55:53 -0700400 }
401
402 for (node = fdt_first_subnode(fdt, images);
403 node >= 0;
404 node = fdt_next_subnode(fdt, node)) {
405 const char *data;
406 int len;
407
408 data = fdt_getprop(fdt, node, "data", &len);
409 if (!data)
410 continue;
411 memcpy(buf + buf_ptr, data, len);
412 debug("Extracting data size %x\n", len);
413
414 ret = fdt_delprop(fdt, node, "data");
415 if (ret) {
416 ret = -EPERM;
Simon Glassb97d71e2016-03-16 07:45:39 -0600417 goto err_munmap;
Simon Glass722ebc82016-02-22 22:55:53 -0700418 }
419 fdt_setprop_u32(fdt, node, "data-offset", buf_ptr);
420 fdt_setprop_u32(fdt, node, "data-size", len);
421
422 buf_ptr += (len + 3) & ~3;
423 }
424
425 /* Pack the FDT and place the data after it */
426 fdt_pack(fdt);
427
428 debug("Size reduced from %x to %x\n", fit_size, fdt_totalsize(fdt));
429 debug("External data size %x\n", buf_ptr);
430 new_size = fdt_totalsize(fdt);
431 new_size = (new_size + 3) & ~3;
432 munmap(fdt, sbuf.st_size);
433
434 if (ftruncate(fd, new_size)) {
435 debug("%s: Failed to truncate file: %s\n", __func__,
436 strerror(errno));
437 ret = -EIO;
438 goto err;
439 }
440 if (lseek(fd, new_size, SEEK_SET) < 0) {
441 debug("%s: Failed to seek to end of file: %s\n", __func__,
442 strerror(errno));
443 ret = -EIO;
444 goto err;
445 }
446 if (write(fd, buf, buf_ptr) != buf_ptr) {
447 debug("%s: Failed to write external data to file %s\n",
448 __func__, strerror(errno));
449 ret = -EIO;
450 goto err;
451 }
Simon Glassb97d71e2016-03-16 07:45:39 -0600452 close(fd);
453 return 0;
Simon Glass722ebc82016-02-22 22:55:53 -0700454
Simon Glassb97d71e2016-03-16 07:45:39 -0600455err_munmap:
456 munmap(fdt, sbuf.st_size);
Simon Glass722ebc82016-02-22 22:55:53 -0700457err:
Simon Glass21c29752016-03-16 07:45:40 -0600458 if (buf)
459 free(buf);
Simon Glass722ebc82016-02-22 22:55:53 -0700460 close(fd);
461 return ret;
462}
463
Simon Glass529fd182016-02-22 22:55:54 -0700464static int fit_import_data(struct image_tool_params *params, const char *fname)
465{
466 void *fdt, *old_fdt;
467 int fit_size, new_size, size, data_base;
468 int fd;
469 struct stat sbuf;
470 int ret;
471 int images;
472 int node;
473
474 fd = mmap_fdt(params->cmdname, fname, 0, &old_fdt, &sbuf, false);
475 if (fd < 0)
476 return -EIO;
477 fit_size = fdt_totalsize(old_fdt);
478 data_base = (fit_size + 3) & ~3;
479
480 /* Allocate space to hold the new FIT */
481 size = sbuf.st_size + 16384;
482 fdt = malloc(size);
483 if (!fdt) {
484 fprintf(stderr, "%s: Failed to allocate memory (%d bytes)\n",
485 __func__, size);
486 ret = -ENOMEM;
487 goto err;
488 }
489 ret = fdt_open_into(old_fdt, fdt, size);
490 if (ret) {
491 debug("%s: Failed to expand FIT: %s\n", __func__,
492 fdt_strerror(errno));
493 ret = -EINVAL;
494 goto err;
495 }
496
497 images = fdt_path_offset(fdt, FIT_IMAGES_PATH);
498 if (images < 0) {
499 debug("%s: Cannot find /images node: %d\n", __func__, images);
500 ret = -EINVAL;
501 goto err;
502 }
503
504 for (node = fdt_first_subnode(fdt, images);
505 node >= 0;
506 node = fdt_next_subnode(fdt, node)) {
507 int buf_ptr;
508 int len;
509
510 buf_ptr = fdtdec_get_int(fdt, node, "data-offset", -1);
511 len = fdtdec_get_int(fdt, node, "data-size", -1);
512 if (buf_ptr == -1 || len == -1)
513 continue;
514 debug("Importing data size %x\n", len);
515
516 ret = fdt_setprop(fdt, node, "data", fdt + data_base + buf_ptr,
517 len);
518 if (ret) {
519 debug("%s: Failed to write property: %s\n", __func__,
520 fdt_strerror(ret));
521 ret = -EINVAL;
522 goto err;
523 }
524 }
525
Simon Glass9cff2d12016-03-16 07:45:31 -0600526 munmap(old_fdt, sbuf.st_size);
Simon Glass529fd182016-02-22 22:55:54 -0700527 close(fd);
528
529 /* Pack the FDT and place the data after it */
530 fdt_pack(fdt);
531
532 new_size = fdt_totalsize(fdt);
533 debug("Size expanded from %x to %x\n", fit_size, new_size);
534
535 fd = open(fname, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0666);
536 if (fd < 0) {
537 fprintf(stderr, "%s: Can't open %s: %s\n",
538 params->cmdname, fname, strerror(errno));
Simon Glass508b0282016-03-16 07:45:32 -0600539 ret = -EIO;
Simon Glass529fd182016-02-22 22:55:54 -0700540 goto err;
541 }
542 if (write(fd, fdt, new_size) != new_size) {
543 debug("%s: Failed to write external data to file %s\n",
544 __func__, strerror(errno));
545 ret = -EIO;
546 goto err;
547 }
Simon Glass529fd182016-02-22 22:55:54 -0700548
549 ret = 0;
550
551err:
Simon Glass6e0ffce2016-03-16 07:45:38 -0600552 free(fdt);
Simon Glass529fd182016-02-22 22:55:54 -0700553 close(fd);
554 return ret;
555}
556
Simon Glass722ebc82016-02-22 22:55:53 -0700557/**
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530558 * fit_handle_file - main FIT file processing function
559 *
560 * fit_handle_file() runs dtc to convert .its to .itb, includes
561 * binary data, updates timestamp property and calculates hashes.
562 *
563 * datafile - .its file
564 * imagefile - .itb file
565 *
566 * returns:
567 * only on success, otherwise calls exit (EXIT_FAILURE);
568 */
Guilherme Maciel Ferreiraf86ed6a2013-12-01 12:43:10 -0700569static int fit_handle_file(struct image_tool_params *params)
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530570{
571 char tmpfile[MKIMAGE_MAX_TMPFILE_LEN];
572 char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN];
Simon Glassa9468112014-06-02 22:04:53 -0600573 size_t size_inc;
574 int ret;
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530575
576 /* Flattened Image Tree (FIT) format handling */
577 debug ("FIT format handling\n");
578
579 /* call dtc to include binary properties into the tmp file */
580 if (strlen (params->imagefile) +
581 strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 > sizeof (tmpfile)) {
582 fprintf (stderr, "%s: Image file name (%s) too long, "
583 "can't create tmpfile",
584 params->imagefile, params->cmdname);
585 return (EXIT_FAILURE);
586 }
587 sprintf (tmpfile, "%s%s", params->imagefile, MKIMAGE_TMPFILE_SUFFIX);
588
Simon Glass95d77b42013-06-13 15:10:05 -0700589 /* We either compile the source file, or use the existing FIT image */
Simon Glass8e35bb02016-02-22 22:55:51 -0700590 if (params->auto_its) {
591 if (fit_build(params, tmpfile)) {
592 fprintf(stderr, "%s: failed to build FIT\n",
593 params->cmdname);
594 return EXIT_FAILURE;
595 }
596 *cmd = '\0';
597 } else if (params->datafile) {
Simon Glass95d77b42013-06-13 15:10:05 -0700598 /* dtc -I dts -O dtb -p 500 datafile > tmpfile */
599 snprintf(cmd, sizeof(cmd), "%s %s %s > %s",
600 MKIMAGE_DTC, params->dtc, params->datafile, tmpfile);
601 debug("Trying to execute \"%s\"\n", cmd);
602 } else {
603 snprintf(cmd, sizeof(cmd), "cp %s %s",
604 params->imagefile, tmpfile);
605 }
Simon Glass8e35bb02016-02-22 22:55:51 -0700606 if (*cmd && system(cmd) == -1) {
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530607 fprintf (stderr, "%s: system(%s) failed: %s\n",
608 params->cmdname, cmd, strerror(errno));
Simon Glassaa6d6db2013-05-08 08:05:57 +0000609 goto err_system;
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530610 }
611
Simon Glass529fd182016-02-22 22:55:54 -0700612 /* Move the data so it is internal to the FIT, if needed */
613 ret = fit_import_data(params, tmpfile);
614 if (ret)
615 goto err_system;
616
Simon Glassa9468112014-06-02 22:04:53 -0600617 /*
618 * Set hashes for images in the blob. Unfortunately we may need more
619 * space in either FDT, so keep trying until we succeed.
620 *
621 * Note: this is pretty inefficient for signing, since we must
622 * calculate the signature every time. It would be better to calculate
623 * all the data and then store it in a separate step. However, this
624 * would be considerably more complex to implement. Generally a few
625 * steps of this loop is enough to sign with several keys.
626 */
627 for (size_inc = 0; size_inc < 64 * 1024; size_inc += 1024) {
628 ret = fit_add_file_data(params, size_inc, tmpfile);
629 if (!ret || ret != -ENOSPC)
630 break;
Simon Glasse29495d2013-06-13 15:10:04 -0700631 }
632
Simon Glassa9468112014-06-02 22:04:53 -0600633 if (ret) {
Simon Glass399c7442013-06-13 15:10:07 -0700634 fprintf(stderr, "%s Can't add hashes to FIT blob\n",
635 params->cmdname);
Simon Glassa9468112014-06-02 22:04:53 -0600636 goto err_system;
Simon Glasse29495d2013-06-13 15:10:04 -0700637 }
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530638
Simon Glass722ebc82016-02-22 22:55:53 -0700639 /* Move the data so it is external to the FIT, if requested */
640 if (params->external_data) {
641 ret = fit_extract_data(params, tmpfile);
642 if (ret)
643 goto err_system;
644 }
645
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530646 if (rename (tmpfile, params->imagefile) == -1) {
647 fprintf (stderr, "%s: Can't rename %s to %s: %s\n",
648 params->cmdname, tmpfile, params->imagefile,
649 strerror (errno));
650 unlink (tmpfile);
651 unlink (params->imagefile);
Simon Glassa9468112014-06-02 22:04:53 -0600652 return EXIT_FAILURE;
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530653 }
Simon Glassa9468112014-06-02 22:04:53 -0600654 return EXIT_SUCCESS;
Simon Glassaa6d6db2013-05-08 08:05:57 +0000655
Simon Glassaa6d6db2013-05-08 08:05:57 +0000656err_system:
657 unlink(tmpfile);
658 return -1;
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530659}
660
Guilherme Maciel Ferreira39931f92015-01-15 02:54:42 -0200661/**
662 * fit_image_extract - extract a FIT component image
663 * @fit: pointer to the FIT format image header
664 * @image_noffset: offset of the component image node
665 * @file_name: name of the file to store the FIT sub-image
666 *
667 * returns:
668 * zero in case of success or a negative value if fail.
669 */
670static int fit_image_extract(
671 const void *fit,
672 int image_noffset,
673 const char *file_name)
674{
675 const void *file_data;
676 size_t file_size = 0;
677
678 /* get the "data" property of component at offset "image_noffset" */
679 fit_image_get_data(fit, image_noffset, &file_data, &file_size);
680
681 /* save the "file_data" into the file specified by "file_name" */
682 return imagetool_save_subimage(file_name, (ulong) file_data, file_size);
683}
684
685/**
686 * fit_extract_contents - retrieve a sub-image component from the FIT image
687 * @ptr: pointer to the FIT format image header
688 * @params: command line parameters
689 *
690 * returns:
691 * zero in case of success or a negative value if fail.
692 */
693static int fit_extract_contents(void *ptr, struct image_tool_params *params)
694{
695 int images_noffset;
696 int noffset;
697 int ndepth;
698 const void *fit = ptr;
699 int count = 0;
700 const char *p;
701
702 /* Indent string is defined in header image.h */
703 p = IMAGE_INDENT_STRING;
704
705 if (!fit_check_format(fit)) {
706 printf("Bad FIT image format\n");
707 return -1;
708 }
709
710 /* Find images parent node offset */
711 images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
712 if (images_noffset < 0) {
713 printf("Can't find images parent node '%s' (%s)\n",
714 FIT_IMAGES_PATH, fdt_strerror(images_noffset));
715 return -1;
716 }
717
718 /* Avoid any overrun */
719 count = fit_get_subimage_count(fit, images_noffset);
720 if ((params->pflag < 0) || (count <= params->pflag)) {
721 printf("No such component at '%d'\n", params->pflag);
722 return -1;
723 }
724
725 /* Process its subnodes, extract the desired component from image */
726 for (ndepth = 0, count = 0,
727 noffset = fdt_next_node(fit, images_noffset, &ndepth);
728 (noffset >= 0) && (ndepth > 0);
729 noffset = fdt_next_node(fit, noffset, &ndepth)) {
730 if (ndepth == 1) {
731 /*
732 * Direct child node of the images parent node,
733 * i.e. component image node.
734 */
735 if (params->pflag == count) {
736 printf("Extracted:\n%s Image %u (%s)\n", p,
737 count, fit_get_name(fit, noffset, NULL));
738
739 fit_image_print(fit, noffset, p);
740
741 return fit_image_extract(fit, noffset,
742 params->outfile);
743 }
744
745 count++;
746 }
747 }
748
749 return 0;
750}
751
Guilherme Maciel Ferreiraf86ed6a2013-12-01 12:43:10 -0700752static int fit_check_params(struct image_tool_params *params)
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530753{
Simon Glass8e35bb02016-02-22 22:55:51 -0700754 if (params->auto_its)
755 return 0;
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530756 return ((params->dflag && (params->fflag || params->lflag)) ||
757 (params->fflag && (params->dflag || params->lflag)) ||
758 (params->lflag && (params->dflag || params->fflag)));
759}
760
Guilherme Maciel Ferreiraa93648d2015-01-15 02:48:07 -0200761U_BOOT_IMAGE_TYPE(
762 fitimage,
763 "FIT Image support",
764 sizeof(image_header_t),
765 (void *)&header,
766 fit_check_params,
767 fit_verify_header,
768 fit_print_contents,
769 NULL,
Guilherme Maciel Ferreira39931f92015-01-15 02:54:42 -0200770 fit_extract_contents,
Guilherme Maciel Ferreiraa93648d2015-01-15 02:48:07 -0200771 fit_check_image_types,
772 fit_handle_file,
773 NULL /* FIT images use DTB header */
774);