blob: 4dc8bd8862454598d1bf5383b259707a06cfccba [file] [log] [blame]
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 */
Vagrant Cascadian58470842016-06-16 12:28:40 -070054 if (params->datafile) {
55 time_t time = imagetool_get_source_date(params, sbuf.st_mtime);
56 ret = fit_set_timestamp(ptr, 0, time);
57 }
Simon Glassa9468112014-06-02 22:04:53 -060058
59 if (!ret) {
60 ret = fit_add_verification_data(params->keydir, dest_blob, ptr,
61 params->comment,
George McCollisterf1ca1fd2017-01-06 13:14:17 -060062 params->require_keys,
63 params->engine_id);
Simon Glassa9468112014-06-02 22:04:53 -060064 }
65
66 if (dest_blob) {
67 munmap(dest_blob, destfd_size);
68 close(destfd);
69 }
70
71err_keydest:
72 munmap(ptr, sbuf.st_size);
73 close(tfd);
74
75 return ret;
76}
77
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053078/**
Simon Glass8e35bb02016-02-22 22:55:51 -070079 * fit_calc_size() - Calculate the approximate size of the FIT we will generate
80 */
81static int fit_calc_size(struct image_tool_params *params)
82{
Simon Glassfb4cce02016-02-22 22:55:52 -070083 struct content_info *cont;
Simon Glass8e35bb02016-02-22 22:55:51 -070084 int size, total_size;
85
86 size = imagetool_get_filesize(params, params->datafile);
87 if (size < 0)
88 return -1;
Simon Glass8e35bb02016-02-22 22:55:51 -070089 total_size = size;
Tomeu Vizoso0f7c6cd2016-11-04 14:22:15 +010090
91 if (params->fit_ramdisk) {
92 size = imagetool_get_filesize(params, params->fit_ramdisk);
93 if (size < 0)
94 return -1;
95 total_size += size;
96 }
97
Simon Glassfb4cce02016-02-22 22:55:52 -070098 for (cont = params->content_head; cont; cont = cont->next) {
99 size = imagetool_get_filesize(params, cont->fname);
100 if (size < 0)
101 return -1;
Simon Glass8e35bb02016-02-22 22:55:51 -0700102
Simon Glassfb4cce02016-02-22 22:55:52 -0700103 /* Add space for properties */
104 total_size += size + 300;
105 }
Simon Glass8e35bb02016-02-22 22:55:51 -0700106
107 /* Add plenty of space for headers, properties, nodes, etc. */
108 total_size += 4096;
109
110 return total_size;
111}
112
113static int fdt_property_file(struct image_tool_params *params,
114 void *fdt, const char *name, const char *fname)
115{
116 struct stat sbuf;
117 void *ptr;
118 int ret;
119 int fd;
120
121 fd = open(fname, O_RDWR | O_BINARY);
122 if (fd < 0) {
123 fprintf(stderr, "%s: Can't open %s: %s\n",
124 params->cmdname, fname, strerror(errno));
125 return -1;
126 }
127
128 if (fstat(fd, &sbuf) < 0) {
129 fprintf(stderr, "%s: Can't stat %s: %s\n",
130 params->cmdname, fname, strerror(errno));
131 goto err;
132 }
133
134 ret = fdt_property_placeholder(fdt, "data", sbuf.st_size, &ptr);
135 if (ret)
Simon Glass3bd3a542016-03-16 07:45:42 -0600136 goto err;
Simon Glass8e35bb02016-02-22 22:55:51 -0700137 ret = read(fd, ptr, sbuf.st_size);
138 if (ret != sbuf.st_size) {
139 fprintf(stderr, "%s: Can't read %s: %s\n",
140 params->cmdname, fname, strerror(errno));
141 goto err;
142 }
Simon Glass3bd3a542016-03-16 07:45:42 -0600143 close(fd);
Simon Glass8e35bb02016-02-22 22:55:51 -0700144
145 return 0;
146err:
147 close(fd);
148 return -1;
149}
150
151static int fdt_property_strf(void *fdt, const char *name, const char *fmt, ...)
152{
153 char str[100];
154 va_list ptr;
155
156 va_start(ptr, fmt);
157 vsnprintf(str, sizeof(str), fmt, ptr);
158 va_end(ptr);
159 return fdt_property_string(fdt, name, str);
160}
161
Simon Glassfb4cce02016-02-22 22:55:52 -0700162static void get_basename(char *str, int size, const char *fname)
163{
164 const char *p, *start, *end;
165 int len;
166
167 /*
168 * Use the base name as the 'name' field. So for example:
169 *
170 * "arch/arm/dts/sun7i-a20-bananapro.dtb"
171 * becomes "sun7i-a20-bananapro"
172 */
173 p = strrchr(fname, '/');
174 start = p ? p + 1 : fname;
175 p = strrchr(fname, '.');
176 end = p ? p : fname + strlen(fname);
177 len = end - start;
178 if (len >= size)
179 len = size - 1;
180 memcpy(str, start, len);
181 str[len] = '\0';
182}
183
Simon Glass8e35bb02016-02-22 22:55:51 -0700184/**
185 * fit_write_images() - Write out a list of images to the FIT
186 *
Simon Glassfb4cce02016-02-22 22:55:52 -0700187 * We always include the main image (params->datafile). If there are device
188 * tree files, we include an fdt@ node for each of those too.
Simon Glass8e35bb02016-02-22 22:55:51 -0700189 */
190static int fit_write_images(struct image_tool_params *params, char *fdt)
191{
Simon Glassfb4cce02016-02-22 22:55:52 -0700192 struct content_info *cont;
Simon Glass8e35bb02016-02-22 22:55:51 -0700193 const char *typename;
194 char str[100];
Simon Glassfb4cce02016-02-22 22:55:52 -0700195 int upto;
Simon Glass8e35bb02016-02-22 22:55:51 -0700196 int ret;
197
198 fdt_begin_node(fdt, "images");
199
200 /* First the main image */
201 typename = genimg_get_type_short_name(params->fit_image_type);
202 snprintf(str, sizeof(str), "%s@1", typename);
203 fdt_begin_node(fdt, str);
204 fdt_property_string(fdt, "description", params->imagename);
205 fdt_property_string(fdt, "type", typename);
Simon Glass3a45f382016-06-30 10:52:12 -0600206 fdt_property_string(fdt, "arch",
207 genimg_get_arch_short_name(params->arch));
Simon Glass8e35bb02016-02-22 22:55:51 -0700208 fdt_property_string(fdt, "os", genimg_get_os_short_name(params->os));
209 fdt_property_string(fdt, "compression",
210 genimg_get_comp_short_name(params->comp));
211 fdt_property_u32(fdt, "load", params->addr);
212 fdt_property_u32(fdt, "entry", params->ep);
213
214 /*
215 * Put data last since it is large. SPL may only load the first part
216 * of the DT, so this way it can access all the above fields.
217 */
218 ret = fdt_property_file(params, fdt, "data", params->datafile);
219 if (ret)
220 return ret;
221 fdt_end_node(fdt);
222
Simon Glassfb4cce02016-02-22 22:55:52 -0700223 /* Now the device tree files if available */
224 upto = 0;
225 for (cont = params->content_head; cont; cont = cont->next) {
226 if (cont->type != IH_TYPE_FLATDT)
227 continue;
228 snprintf(str, sizeof(str), "%s@%d", FIT_FDT_PROP, ++upto);
229 fdt_begin_node(fdt, str);
230
231 get_basename(str, sizeof(str), cont->fname);
232 fdt_property_string(fdt, "description", str);
233 ret = fdt_property_file(params, fdt, "data", cont->fname);
234 if (ret)
235 return ret;
236 fdt_property_string(fdt, "type", typename);
237 fdt_property_string(fdt, "arch",
238 genimg_get_arch_short_name(params->arch));
239 fdt_property_string(fdt, "compression",
240 genimg_get_comp_short_name(IH_COMP_NONE));
241 fdt_end_node(fdt);
242 }
243
Tomeu Vizoso0f7c6cd2016-11-04 14:22:15 +0100244 /* And a ramdisk file if available */
245 if (params->fit_ramdisk) {
246 fdt_begin_node(fdt, FIT_RAMDISK_PROP "@1");
247
248 fdt_property_string(fdt, "type", FIT_RAMDISK_PROP);
249 fdt_property_string(fdt, "os", genimg_get_os_short_name(params->os));
250
251 ret = fdt_property_file(params, fdt, "data", params->fit_ramdisk);
252 if (ret)
253 return ret;
254
255 fdt_end_node(fdt);
256 }
257
Simon Glass8e35bb02016-02-22 22:55:51 -0700258 fdt_end_node(fdt);
259
260 return 0;
261}
262
263/**
264 * fit_write_configs() - Write out a list of configurations to the FIT
265 *
Simon Glassfb4cce02016-02-22 22:55:52 -0700266 * If there are device tree files, we include a configuration for each, which
267 * selects the main image (params->datafile) and its corresponding device
268 * tree file.
269 *
270 * Otherwise we just create a configuration with the main image in it.
Simon Glass8e35bb02016-02-22 22:55:51 -0700271 */
272static void fit_write_configs(struct image_tool_params *params, char *fdt)
273{
Simon Glassfb4cce02016-02-22 22:55:52 -0700274 struct content_info *cont;
Simon Glass8e35bb02016-02-22 22:55:51 -0700275 const char *typename;
276 char str[100];
Simon Glassfb4cce02016-02-22 22:55:52 -0700277 int upto;
Simon Glass8e35bb02016-02-22 22:55:51 -0700278
279 fdt_begin_node(fdt, "configurations");
280 fdt_property_string(fdt, "default", "conf@1");
281
Simon Glassfb4cce02016-02-22 22:55:52 -0700282 upto = 0;
283 for (cont = params->content_head; cont; cont = cont->next) {
284 if (cont->type != IH_TYPE_FLATDT)
285 continue;
286 typename = genimg_get_type_short_name(cont->type);
287 snprintf(str, sizeof(str), "conf@%d", ++upto);
288 fdt_begin_node(fdt, str);
289
290 get_basename(str, sizeof(str), cont->fname);
291 fdt_property_string(fdt, "description", str);
292
293 typename = genimg_get_type_short_name(params->fit_image_type);
294 snprintf(str, sizeof(str), "%s@1", typename);
295 fdt_property_string(fdt, typename, str);
296
Tomeu Vizoso0f7c6cd2016-11-04 14:22:15 +0100297 if (params->fit_ramdisk)
298 fdt_property_string(fdt, FIT_RAMDISK_PROP,
299 FIT_RAMDISK_PROP "@1");
300
Simon Glassfb4cce02016-02-22 22:55:52 -0700301 snprintf(str, sizeof(str), FIT_FDT_PROP "@%d", upto);
302 fdt_property_string(fdt, FIT_FDT_PROP, str);
303 fdt_end_node(fdt);
304 }
Tomeu Vizoso0f7c6cd2016-11-04 14:22:15 +0100305
Simon Glassfb4cce02016-02-22 22:55:52 -0700306 if (!upto) {
307 fdt_begin_node(fdt, "conf@1");
308 typename = genimg_get_type_short_name(params->fit_image_type);
309 snprintf(str, sizeof(str), "%s@1", typename);
310 fdt_property_string(fdt, typename, str);
Tomeu Vizoso0f7c6cd2016-11-04 14:22:15 +0100311
312 if (params->fit_ramdisk)
313 fdt_property_string(fdt, FIT_RAMDISK_PROP,
314 FIT_RAMDISK_PROP "@1");
315
Simon Glassfb4cce02016-02-22 22:55:52 -0700316 fdt_end_node(fdt);
317 }
Simon Glass8e35bb02016-02-22 22:55:51 -0700318
319 fdt_end_node(fdt);
320}
321
322static int fit_build_fdt(struct image_tool_params *params, char *fdt, int size)
323{
324 int ret;
325
326 ret = fdt_create(fdt, size);
327 if (ret)
328 return ret;
329 fdt_finish_reservemap(fdt);
330 fdt_begin_node(fdt, "");
331 fdt_property_strf(fdt, "description",
332 "%s image with one or more FDT blobs",
333 genimg_get_type_name(params->fit_image_type));
334 fdt_property_strf(fdt, "creator", "U-Boot mkimage %s", PLAIN_VERSION);
335 fdt_property_u32(fdt, "#address-cells", 1);
336 ret = fit_write_images(params, fdt);
337 if (ret)
338 return ret;
339 fit_write_configs(params, fdt);
340 fdt_end_node(fdt);
341 ret = fdt_finish(fdt);
342 if (ret)
343 return ret;
344
345 return fdt_totalsize(fdt);
346}
347
348static int fit_build(struct image_tool_params *params, const char *fname)
349{
350 char *buf;
351 int size;
352 int ret;
353 int fd;
354
355 size = fit_calc_size(params);
356 if (size < 0)
357 return -1;
358 buf = malloc(size);
359 if (!buf) {
360 fprintf(stderr, "%s: Out of memory (%d bytes)\n",
361 params->cmdname, size);
362 return -1;
363 }
364 ret = fit_build_fdt(params, buf, size);
365 if (ret < 0) {
366 fprintf(stderr, "%s: Failed to build FIT image\n",
367 params->cmdname);
Simon Glass7b0bbd82016-03-16 07:45:41 -0600368 goto err_buf;
Simon Glass8e35bb02016-02-22 22:55:51 -0700369 }
370 size = ret;
371 fd = open(fname, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0666);
372 if (fd < 0) {
373 fprintf(stderr, "%s: Can't open %s: %s\n",
374 params->cmdname, fname, strerror(errno));
375 goto err;
376 }
377 ret = write(fd, buf, size);
378 if (ret != size) {
379 fprintf(stderr, "%s: Can't write %s: %s\n",
380 params->cmdname, fname, strerror(errno));
Simon Glass8e35bb02016-02-22 22:55:51 -0700381 goto err;
382 }
383 close(fd);
Simon Glass7b0bbd82016-03-16 07:45:41 -0600384 free(buf);
Simon Glass8e35bb02016-02-22 22:55:51 -0700385
386 return 0;
387err:
Simon Glass7b0bbd82016-03-16 07:45:41 -0600388 close(fd);
389err_buf:
Simon Glass8e35bb02016-02-22 22:55:51 -0700390 free(buf);
391 return -1;
392}
393
394/**
Simon Glass722ebc82016-02-22 22:55:53 -0700395 * fit_extract_data() - Move all data outside the FIT
396 *
397 * This takes a normal FIT file and removes all the 'data' properties from it.
398 * The data is placed in an area after the FIT so that it can be accessed
399 * using an offset into that area. The 'data' properties turn into
400 * 'data-offset' properties.
401 *
402 * This function cannot cope with FITs with 'data-offset' properties. All
403 * data must be in 'data' properties on entry.
404 */
405static int fit_extract_data(struct image_tool_params *params, const char *fname)
406{
407 void *buf;
408 int buf_ptr;
409 int fit_size, new_size;
410 int fd;
411 struct stat sbuf;
412 void *fdt;
413 int ret;
414 int images;
415 int node;
416
417 fd = mmap_fdt(params->cmdname, fname, 0, &fdt, &sbuf, false);
418 if (fd < 0)
419 return -EIO;
420 fit_size = fdt_totalsize(fdt);
421
422 /* Allocate space to hold the image data we will extract */
423 buf = malloc(fit_size);
424 if (!buf) {
425 ret = -ENOMEM;
Simon Glassb97d71e2016-03-16 07:45:39 -0600426 goto err_munmap;
Simon Glass722ebc82016-02-22 22:55:53 -0700427 }
428 buf_ptr = 0;
429
430 images = fdt_path_offset(fdt, FIT_IMAGES_PATH);
431 if (images < 0) {
432 debug("%s: Cannot find /images node: %d\n", __func__, images);
433 ret = -EINVAL;
Simon Glassb97d71e2016-03-16 07:45:39 -0600434 goto err_munmap;
Simon Glass722ebc82016-02-22 22:55:53 -0700435 }
436
437 for (node = fdt_first_subnode(fdt, images);
438 node >= 0;
439 node = fdt_next_subnode(fdt, node)) {
440 const char *data;
441 int len;
442
443 data = fdt_getprop(fdt, node, "data", &len);
444 if (!data)
445 continue;
446 memcpy(buf + buf_ptr, data, len);
447 debug("Extracting data size %x\n", len);
448
449 ret = fdt_delprop(fdt, node, "data");
450 if (ret) {
451 ret = -EPERM;
Simon Glassb97d71e2016-03-16 07:45:39 -0600452 goto err_munmap;
Simon Glass722ebc82016-02-22 22:55:53 -0700453 }
Teddy Reedf8f91072016-06-09 19:38:02 -0700454 if (params->external_offset > 0) {
455 /* An external offset positions the data absolutely. */
456 fdt_setprop_u32(fdt, node, "data-position",
457 params->external_offset + buf_ptr);
458 } else {
459 fdt_setprop_u32(fdt, node, "data-offset", buf_ptr);
460 }
Simon Glass722ebc82016-02-22 22:55:53 -0700461 fdt_setprop_u32(fdt, node, "data-size", len);
462
463 buf_ptr += (len + 3) & ~3;
464 }
465
466 /* Pack the FDT and place the data after it */
467 fdt_pack(fdt);
468
469 debug("Size reduced from %x to %x\n", fit_size, fdt_totalsize(fdt));
470 debug("External data size %x\n", buf_ptr);
471 new_size = fdt_totalsize(fdt);
472 new_size = (new_size + 3) & ~3;
473 munmap(fdt, sbuf.st_size);
474
475 if (ftruncate(fd, new_size)) {
476 debug("%s: Failed to truncate file: %s\n", __func__,
477 strerror(errno));
478 ret = -EIO;
479 goto err;
480 }
Teddy Reedf8f91072016-06-09 19:38:02 -0700481
482 /* Check if an offset for the external data was set. */
483 if (params->external_offset > 0) {
484 if (params->external_offset < new_size) {
485 debug("External offset %x overlaps FIT length %x",
486 params->external_offset, new_size);
487 ret = -EINVAL;
488 goto err;
489 }
490 new_size = params->external_offset;
491 }
Simon Glass722ebc82016-02-22 22:55:53 -0700492 if (lseek(fd, new_size, SEEK_SET) < 0) {
493 debug("%s: Failed to seek to end of file: %s\n", __func__,
494 strerror(errno));
495 ret = -EIO;
496 goto err;
497 }
498 if (write(fd, buf, buf_ptr) != buf_ptr) {
499 debug("%s: Failed to write external data to file %s\n",
500 __func__, strerror(errno));
501 ret = -EIO;
502 goto err;
503 }
Simon Glassb97d71e2016-03-16 07:45:39 -0600504 close(fd);
505 return 0;
Simon Glass722ebc82016-02-22 22:55:53 -0700506
Simon Glassb97d71e2016-03-16 07:45:39 -0600507err_munmap:
508 munmap(fdt, sbuf.st_size);
Simon Glass722ebc82016-02-22 22:55:53 -0700509err:
Simon Glass21c29752016-03-16 07:45:40 -0600510 if (buf)
511 free(buf);
Simon Glass722ebc82016-02-22 22:55:53 -0700512 close(fd);
513 return ret;
514}
515
Simon Glass529fd182016-02-22 22:55:54 -0700516static int fit_import_data(struct image_tool_params *params, const char *fname)
517{
518 void *fdt, *old_fdt;
519 int fit_size, new_size, size, data_base;
520 int fd;
521 struct stat sbuf;
522 int ret;
523 int images;
524 int node;
525
526 fd = mmap_fdt(params->cmdname, fname, 0, &old_fdt, &sbuf, false);
527 if (fd < 0)
528 return -EIO;
529 fit_size = fdt_totalsize(old_fdt);
530 data_base = (fit_size + 3) & ~3;
531
532 /* Allocate space to hold the new FIT */
533 size = sbuf.st_size + 16384;
534 fdt = malloc(size);
535 if (!fdt) {
536 fprintf(stderr, "%s: Failed to allocate memory (%d bytes)\n",
537 __func__, size);
538 ret = -ENOMEM;
539 goto err;
540 }
541 ret = fdt_open_into(old_fdt, fdt, size);
542 if (ret) {
543 debug("%s: Failed to expand FIT: %s\n", __func__,
544 fdt_strerror(errno));
545 ret = -EINVAL;
546 goto err;
547 }
548
549 images = fdt_path_offset(fdt, FIT_IMAGES_PATH);
550 if (images < 0) {
551 debug("%s: Cannot find /images node: %d\n", __func__, images);
552 ret = -EINVAL;
553 goto err;
554 }
555
556 for (node = fdt_first_subnode(fdt, images);
557 node >= 0;
558 node = fdt_next_subnode(fdt, node)) {
559 int buf_ptr;
560 int len;
561
562 buf_ptr = fdtdec_get_int(fdt, node, "data-offset", -1);
563 len = fdtdec_get_int(fdt, node, "data-size", -1);
564 if (buf_ptr == -1 || len == -1)
565 continue;
566 debug("Importing data size %x\n", len);
567
568 ret = fdt_setprop(fdt, node, "data", fdt + data_base + buf_ptr,
569 len);
570 if (ret) {
571 debug("%s: Failed to write property: %s\n", __func__,
572 fdt_strerror(ret));
573 ret = -EINVAL;
574 goto err;
575 }
576 }
577
Simon Glass9cff2d12016-03-16 07:45:31 -0600578 munmap(old_fdt, sbuf.st_size);
Simon Glass529fd182016-02-22 22:55:54 -0700579 close(fd);
580
581 /* Pack the FDT and place the data after it */
582 fdt_pack(fdt);
583
584 new_size = fdt_totalsize(fdt);
585 debug("Size expanded from %x to %x\n", fit_size, new_size);
586
587 fd = open(fname, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0666);
588 if (fd < 0) {
589 fprintf(stderr, "%s: Can't open %s: %s\n",
590 params->cmdname, fname, strerror(errno));
Simon Glass5b15a252016-03-16 07:45:43 -0600591 free(fdt);
592 return -EIO;
Simon Glass529fd182016-02-22 22:55:54 -0700593 }
594 if (write(fd, fdt, new_size) != new_size) {
595 debug("%s: Failed to write external data to file %s\n",
596 __func__, strerror(errno));
597 ret = -EIO;
598 goto err;
599 }
Simon Glass529fd182016-02-22 22:55:54 -0700600
601 ret = 0;
602
603err:
Simon Glass6e0ffce2016-03-16 07:45:38 -0600604 free(fdt);
Simon Glass529fd182016-02-22 22:55:54 -0700605 close(fd);
606 return ret;
607}
608
Simon Glass722ebc82016-02-22 22:55:53 -0700609/**
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530610 * fit_handle_file - main FIT file processing function
611 *
612 * fit_handle_file() runs dtc to convert .its to .itb, includes
613 * binary data, updates timestamp property and calculates hashes.
614 *
615 * datafile - .its file
616 * imagefile - .itb file
617 *
618 * returns:
619 * only on success, otherwise calls exit (EXIT_FAILURE);
620 */
Guilherme Maciel Ferreiraf86ed6a2013-12-01 12:43:10 -0700621static int fit_handle_file(struct image_tool_params *params)
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530622{
623 char tmpfile[MKIMAGE_MAX_TMPFILE_LEN];
624 char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN];
Simon Glassa9468112014-06-02 22:04:53 -0600625 size_t size_inc;
626 int ret;
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530627
628 /* Flattened Image Tree (FIT) format handling */
629 debug ("FIT format handling\n");
630
631 /* call dtc to include binary properties into the tmp file */
632 if (strlen (params->imagefile) +
633 strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 > sizeof (tmpfile)) {
634 fprintf (stderr, "%s: Image file name (%s) too long, "
635 "can't create tmpfile",
636 params->imagefile, params->cmdname);
637 return (EXIT_FAILURE);
638 }
639 sprintf (tmpfile, "%s%s", params->imagefile, MKIMAGE_TMPFILE_SUFFIX);
640
Simon Glass95d77b42013-06-13 15:10:05 -0700641 /* We either compile the source file, or use the existing FIT image */
Simon Glass8e35bb02016-02-22 22:55:51 -0700642 if (params->auto_its) {
643 if (fit_build(params, tmpfile)) {
644 fprintf(stderr, "%s: failed to build FIT\n",
645 params->cmdname);
646 return EXIT_FAILURE;
647 }
648 *cmd = '\0';
649 } else if (params->datafile) {
Simon Glass95d77b42013-06-13 15:10:05 -0700650 /* dtc -I dts -O dtb -p 500 datafile > tmpfile */
651 snprintf(cmd, sizeof(cmd), "%s %s %s > %s",
652 MKIMAGE_DTC, params->dtc, params->datafile, tmpfile);
653 debug("Trying to execute \"%s\"\n", cmd);
654 } else {
655 snprintf(cmd, sizeof(cmd), "cp %s %s",
656 params->imagefile, tmpfile);
657 }
Simon Glass8e35bb02016-02-22 22:55:51 -0700658 if (*cmd && system(cmd) == -1) {
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530659 fprintf (stderr, "%s: system(%s) failed: %s\n",
660 params->cmdname, cmd, strerror(errno));
Simon Glassaa6d6db2013-05-08 08:05:57 +0000661 goto err_system;
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530662 }
663
Simon Glass529fd182016-02-22 22:55:54 -0700664 /* Move the data so it is internal to the FIT, if needed */
665 ret = fit_import_data(params, tmpfile);
666 if (ret)
667 goto err_system;
668
Simon Glassa9468112014-06-02 22:04:53 -0600669 /*
670 * Set hashes for images in the blob. Unfortunately we may need more
671 * space in either FDT, so keep trying until we succeed.
672 *
673 * Note: this is pretty inefficient for signing, since we must
674 * calculate the signature every time. It would be better to calculate
675 * all the data and then store it in a separate step. However, this
676 * would be considerably more complex to implement. Generally a few
677 * steps of this loop is enough to sign with several keys.
678 */
679 for (size_inc = 0; size_inc < 64 * 1024; size_inc += 1024) {
680 ret = fit_add_file_data(params, size_inc, tmpfile);
681 if (!ret || ret != -ENOSPC)
682 break;
Simon Glasse29495d2013-06-13 15:10:04 -0700683 }
684
Simon Glassa9468112014-06-02 22:04:53 -0600685 if (ret) {
Simon Glass655cc692016-07-03 09:40:43 -0600686 fprintf(stderr, "%s Can't add hashes to FIT blob: %d\n",
687 params->cmdname, ret);
Simon Glassa9468112014-06-02 22:04:53 -0600688 goto err_system;
Simon Glasse29495d2013-06-13 15:10:04 -0700689 }
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530690
Simon Glass722ebc82016-02-22 22:55:53 -0700691 /* Move the data so it is external to the FIT, if requested */
692 if (params->external_data) {
693 ret = fit_extract_data(params, tmpfile);
694 if (ret)
695 goto err_system;
696 }
697
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530698 if (rename (tmpfile, params->imagefile) == -1) {
699 fprintf (stderr, "%s: Can't rename %s to %s: %s\n",
700 params->cmdname, tmpfile, params->imagefile,
701 strerror (errno));
702 unlink (tmpfile);
703 unlink (params->imagefile);
Simon Glassa9468112014-06-02 22:04:53 -0600704 return EXIT_FAILURE;
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530705 }
Simon Glassa9468112014-06-02 22:04:53 -0600706 return EXIT_SUCCESS;
Simon Glassaa6d6db2013-05-08 08:05:57 +0000707
Simon Glassaa6d6db2013-05-08 08:05:57 +0000708err_system:
709 unlink(tmpfile);
710 return -1;
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530711}
712
Guilherme Maciel Ferreira39931f92015-01-15 02:54:42 -0200713/**
714 * fit_image_extract - extract a FIT component image
715 * @fit: pointer to the FIT format image header
716 * @image_noffset: offset of the component image node
717 * @file_name: name of the file to store the FIT sub-image
718 *
719 * returns:
720 * zero in case of success or a negative value if fail.
721 */
722static int fit_image_extract(
723 const void *fit,
724 int image_noffset,
725 const char *file_name)
726{
727 const void *file_data;
728 size_t file_size = 0;
729
730 /* get the "data" property of component at offset "image_noffset" */
731 fit_image_get_data(fit, image_noffset, &file_data, &file_size);
732
733 /* save the "file_data" into the file specified by "file_name" */
734 return imagetool_save_subimage(file_name, (ulong) file_data, file_size);
735}
736
737/**
738 * fit_extract_contents - retrieve a sub-image component from the FIT image
739 * @ptr: pointer to the FIT format image header
740 * @params: command line parameters
741 *
742 * returns:
743 * zero in case of success or a negative value if fail.
744 */
745static int fit_extract_contents(void *ptr, struct image_tool_params *params)
746{
747 int images_noffset;
748 int noffset;
749 int ndepth;
750 const void *fit = ptr;
751 int count = 0;
752 const char *p;
753
754 /* Indent string is defined in header image.h */
755 p = IMAGE_INDENT_STRING;
756
757 if (!fit_check_format(fit)) {
758 printf("Bad FIT image format\n");
759 return -1;
760 }
761
762 /* Find images parent node offset */
763 images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
764 if (images_noffset < 0) {
765 printf("Can't find images parent node '%s' (%s)\n",
766 FIT_IMAGES_PATH, fdt_strerror(images_noffset));
767 return -1;
768 }
769
770 /* Avoid any overrun */
771 count = fit_get_subimage_count(fit, images_noffset);
772 if ((params->pflag < 0) || (count <= params->pflag)) {
773 printf("No such component at '%d'\n", params->pflag);
774 return -1;
775 }
776
777 /* Process its subnodes, extract the desired component from image */
778 for (ndepth = 0, count = 0,
779 noffset = fdt_next_node(fit, images_noffset, &ndepth);
780 (noffset >= 0) && (ndepth > 0);
781 noffset = fdt_next_node(fit, noffset, &ndepth)) {
782 if (ndepth == 1) {
783 /*
784 * Direct child node of the images parent node,
785 * i.e. component image node.
786 */
787 if (params->pflag == count) {
788 printf("Extracted:\n%s Image %u (%s)\n", p,
789 count, fit_get_name(fit, noffset, NULL));
790
791 fit_image_print(fit, noffset, p);
792
793 return fit_image_extract(fit, noffset,
794 params->outfile);
795 }
796
797 count++;
798 }
799 }
800
801 return 0;
802}
803
Guilherme Maciel Ferreiraf86ed6a2013-12-01 12:43:10 -0700804static int fit_check_params(struct image_tool_params *params)
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530805{
Simon Glass8e35bb02016-02-22 22:55:51 -0700806 if (params->auto_its)
807 return 0;
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530808 return ((params->dflag && (params->fflag || params->lflag)) ||
809 (params->fflag && (params->dflag || params->lflag)) ||
810 (params->lflag && (params->dflag || params->fflag)));
811}
812
Guilherme Maciel Ferreiraa93648d2015-01-15 02:48:07 -0200813U_BOOT_IMAGE_TYPE(
814 fitimage,
815 "FIT Image support",
816 sizeof(image_header_t),
817 (void *)&header,
818 fit_check_params,
819 fit_verify_header,
820 fit_print_contents,
821 NULL,
Guilherme Maciel Ferreira39931f92015-01-15 02:54:42 -0200822 fit_extract_contents,
Guilherme Maciel Ferreiraa93648d2015-01-15 02:48:07 -0200823 fit_check_image_types,
824 fit_handle_file,
825 NULL /* FIT images use DTB header */
826);