xref: /openbmc/u-boot/common/image-fit.c (revision 2290fe06)
1 /*
2  * Copyright (c) 2013, Google Inc.
3  *
4  * (C) Copyright 2008 Semihalf
5  *
6  * (C) Copyright 2000-2006
7  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8  *
9  * SPDX-License-Identifier:	GPL-2.0+
10  */
11 
12 #ifdef USE_HOSTCC
13 #include "mkimage.h"
14 #include <image.h>
15 #include <time.h>
16 #else
17 #include <common.h>
18 #include <errno.h>
19 #include <mapmem.h>
20 #include <asm/io.h>
21 DECLARE_GLOBAL_DATA_PTR;
22 #endif /* !USE_HOSTCC*/
23 
24 #include <bootstage.h>
25 #include <u-boot/crc.h>
26 #include <u-boot/md5.h>
27 #include <u-boot/sha1.h>
28 #include <u-boot/sha256.h>
29 
30 /*****************************************************************************/
31 /* New uImage format routines */
32 /*****************************************************************************/
33 #ifndef USE_HOSTCC
34 static int fit_parse_spec(const char *spec, char sepc, ulong addr_curr,
35 		ulong *addr, const char **name)
36 {
37 	const char *sep;
38 
39 	*addr = addr_curr;
40 	*name = NULL;
41 
42 	sep = strchr(spec, sepc);
43 	if (sep) {
44 		if (sep - spec > 0)
45 			*addr = simple_strtoul(spec, NULL, 16);
46 
47 		*name = sep + 1;
48 		return 1;
49 	}
50 
51 	return 0;
52 }
53 
54 /**
55  * fit_parse_conf - parse FIT configuration spec
56  * @spec: input string, containing configuration spec
57  * @add_curr: current image address (to be used as a possible default)
58  * @addr: pointer to a ulong variable, will hold FIT image address of a given
59  * configuration
60  * @conf_name double pointer to a char, will hold pointer to a configuration
61  * unit name
62  *
63  * fit_parse_conf() expects configuration spec in the form of [<addr>]#<conf>,
64  * where <addr> is a FIT image address that contains configuration
65  * with a <conf> unit name.
66  *
67  * Address part is optional, and if omitted default add_curr will
68  * be used instead.
69  *
70  * returns:
71  *     1 if spec is a valid configuration string,
72  *     addr and conf_name are set accordingly
73  *     0 otherwise
74  */
75 int fit_parse_conf(const char *spec, ulong addr_curr,
76 		ulong *addr, const char **conf_name)
77 {
78 	return fit_parse_spec(spec, '#', addr_curr, addr, conf_name);
79 }
80 
81 /**
82  * fit_parse_subimage - parse FIT subimage spec
83  * @spec: input string, containing subimage spec
84  * @add_curr: current image address (to be used as a possible default)
85  * @addr: pointer to a ulong variable, will hold FIT image address of a given
86  * subimage
87  * @image_name: double pointer to a char, will hold pointer to a subimage name
88  *
89  * fit_parse_subimage() expects subimage spec in the form of
90  * [<addr>]:<subimage>, where <addr> is a FIT image address that contains
91  * subimage with a <subimg> unit name.
92  *
93  * Address part is optional, and if omitted default add_curr will
94  * be used instead.
95  *
96  * returns:
97  *     1 if spec is a valid subimage string,
98  *     addr and image_name are set accordingly
99  *     0 otherwise
100  */
101 int fit_parse_subimage(const char *spec, ulong addr_curr,
102 		ulong *addr, const char **image_name)
103 {
104 	return fit_parse_spec(spec, ':', addr_curr, addr, image_name);
105 }
106 #endif /* !USE_HOSTCC */
107 
108 static void fit_get_debug(const void *fit, int noffset,
109 		char *prop_name, int err)
110 {
111 	debug("Can't get '%s' property from FIT 0x%08lx, node: offset %d, name %s (%s)\n",
112 	      prop_name, (ulong)fit, noffset, fit_get_name(fit, noffset, NULL),
113 	      fdt_strerror(err));
114 }
115 
116 /**
117  * fit_get_subimage_count - get component (sub-image) count
118  * @fit: pointer to the FIT format image header
119  * @images_noffset: offset of images node
120  *
121  * returns:
122  *     number of image components
123  */
124 int fit_get_subimage_count(const void *fit, int images_noffset)
125 {
126 	int noffset;
127 	int ndepth;
128 	int count = 0;
129 
130 	/* Process its subnodes, print out component images details */
131 	for (ndepth = 0, count = 0,
132 		noffset = fdt_next_node(fit, images_noffset, &ndepth);
133 	     (noffset >= 0) && (ndepth > 0);
134 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
135 		if (ndepth == 1) {
136 			count++;
137 		}
138 	}
139 
140 	return count;
141 }
142 
143 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_FIT_SPL_PRINT)
144 /**
145  * fit_print_contents - prints out the contents of the FIT format image
146  * @fit: pointer to the FIT format image header
147  * @p: pointer to prefix string
148  *
149  * fit_print_contents() formats a multi line FIT image contents description.
150  * The routine prints out FIT image properties (root node level) followed by
151  * the details of each component image.
152  *
153  * returns:
154  *     no returned results
155  */
156 void fit_print_contents(const void *fit)
157 {
158 	char *desc;
159 	char *uname;
160 	int images_noffset;
161 	int confs_noffset;
162 	int noffset;
163 	int ndepth;
164 	int count = 0;
165 	int ret;
166 	const char *p;
167 	time_t timestamp;
168 
169 	/* Indent string is defined in header image.h */
170 	p = IMAGE_INDENT_STRING;
171 
172 	/* Root node properties */
173 	ret = fit_get_desc(fit, 0, &desc);
174 	printf("%sFIT description: ", p);
175 	if (ret)
176 		printf("unavailable\n");
177 	else
178 		printf("%s\n", desc);
179 
180 	if (IMAGE_ENABLE_TIMESTAMP) {
181 		ret = fit_get_timestamp(fit, 0, &timestamp);
182 		printf("%sCreated:         ", p);
183 		if (ret)
184 			printf("unavailable\n");
185 		else
186 			genimg_print_time(timestamp);
187 	}
188 
189 	/* Find images parent node offset */
190 	images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
191 	if (images_noffset < 0) {
192 		printf("Can't find images parent node '%s' (%s)\n",
193 		       FIT_IMAGES_PATH, fdt_strerror(images_noffset));
194 		return;
195 	}
196 
197 	/* Process its subnodes, print out component images details */
198 	for (ndepth = 0, count = 0,
199 		noffset = fdt_next_node(fit, images_noffset, &ndepth);
200 	     (noffset >= 0) && (ndepth > 0);
201 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
202 		if (ndepth == 1) {
203 			/*
204 			 * Direct child node of the images parent node,
205 			 * i.e. component image node.
206 			 */
207 			printf("%s Image %u (%s)\n", p, count++,
208 			       fit_get_name(fit, noffset, NULL));
209 
210 			fit_image_print(fit, noffset, p);
211 		}
212 	}
213 
214 	/* Find configurations parent node offset */
215 	confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH);
216 	if (confs_noffset < 0) {
217 		debug("Can't get configurations parent node '%s' (%s)\n",
218 		      FIT_CONFS_PATH, fdt_strerror(confs_noffset));
219 		return;
220 	}
221 
222 	/* get default configuration unit name from default property */
223 	uname = (char *)fdt_getprop(fit, noffset, FIT_DEFAULT_PROP, NULL);
224 	if (uname)
225 		printf("%s Default Configuration: '%s'\n", p, uname);
226 
227 	/* Process its subnodes, print out configurations details */
228 	for (ndepth = 0, count = 0,
229 		noffset = fdt_next_node(fit, confs_noffset, &ndepth);
230 	     (noffset >= 0) && (ndepth > 0);
231 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
232 		if (ndepth == 1) {
233 			/*
234 			 * Direct child node of the configurations parent node,
235 			 * i.e. configuration node.
236 			 */
237 			printf("%s Configuration %u (%s)\n", p, count++,
238 			       fit_get_name(fit, noffset, NULL));
239 
240 			fit_conf_print(fit, noffset, p);
241 		}
242 	}
243 }
244 
245 /**
246  * fit_image_print_data() - prints out the hash node details
247  * @fit: pointer to the FIT format image header
248  * @noffset: offset of the hash node
249  * @p: pointer to prefix string
250  * @type: Type of information to print ("hash" or "sign")
251  *
252  * fit_image_print_data() lists properties for the processed hash node
253  *
254  * This function avoid using puts() since it prints a newline on the host
255  * but does not in U-Boot.
256  *
257  * returns:
258  *     no returned results
259  */
260 static void fit_image_print_data(const void *fit, int noffset, const char *p,
261 				 const char *type)
262 {
263 	const char *keyname;
264 	uint8_t *value;
265 	int value_len;
266 	char *algo;
267 	int required;
268 	int ret, i;
269 
270 	debug("%s  %s node:    '%s'\n", p, type,
271 	      fit_get_name(fit, noffset, NULL));
272 	printf("%s  %s algo:    ", p, type);
273 	if (fit_image_hash_get_algo(fit, noffset, &algo)) {
274 		printf("invalid/unsupported\n");
275 		return;
276 	}
277 	printf("%s", algo);
278 	keyname = fdt_getprop(fit, noffset, "key-name-hint", NULL);
279 	required = fdt_getprop(fit, noffset, "required", NULL) != NULL;
280 	if (keyname)
281 		printf(":%s", keyname);
282 	if (required)
283 		printf(" (required)");
284 	printf("\n");
285 
286 	ret = fit_image_hash_get_value(fit, noffset, &value,
287 					&value_len);
288 	printf("%s  %s value:   ", p, type);
289 	if (ret) {
290 		printf("unavailable\n");
291 	} else {
292 		for (i = 0; i < value_len; i++)
293 			printf("%02x", value[i]);
294 		printf("\n");
295 	}
296 
297 	debug("%s  %s len:     %d\n", p, type, value_len);
298 
299 	/* Signatures have a time stamp */
300 	if (IMAGE_ENABLE_TIMESTAMP && keyname) {
301 		time_t timestamp;
302 
303 		printf("%s  Timestamp:    ", p);
304 		if (fit_get_timestamp(fit, noffset, &timestamp))
305 			printf("unavailable\n");
306 		else
307 			genimg_print_time(timestamp);
308 	}
309 }
310 
311 /**
312  * fit_image_print_verification_data() - prints out the hash/signature details
313  * @fit: pointer to the FIT format image header
314  * @noffset: offset of the hash or signature node
315  * @p: pointer to prefix string
316  *
317  * This lists properties for the processed hash node
318  *
319  * returns:
320  *     no returned results
321  */
322 static void fit_image_print_verification_data(const void *fit, int noffset,
323 				       const char *p)
324 {
325 	const char *name;
326 
327 	/*
328 	 * Check subnode name, must be equal to "hash" or "signature".
329 	 * Multiple hash/signature nodes require unique unit node
330 	 * names, e.g. hash@1, hash@2, signature@1, signature@2, etc.
331 	 */
332 	name = fit_get_name(fit, noffset, NULL);
333 	if (!strncmp(name, FIT_HASH_NODENAME, strlen(FIT_HASH_NODENAME))) {
334 		fit_image_print_data(fit, noffset, p, "Hash");
335 	} else if (!strncmp(name, FIT_SIG_NODENAME,
336 				strlen(FIT_SIG_NODENAME))) {
337 		fit_image_print_data(fit, noffset, p, "Sign");
338 	}
339 }
340 
341 /**
342  * fit_image_print - prints out the FIT component image details
343  * @fit: pointer to the FIT format image header
344  * @image_noffset: offset of the component image node
345  * @p: pointer to prefix string
346  *
347  * fit_image_print() lists all mandatory properties for the processed component
348  * image. If present, hash nodes are printed out as well. Load
349  * address for images of type firmware is also printed out. Since the load
350  * address is not mandatory for firmware images, it will be output as
351  * "unavailable" when not present.
352  *
353  * returns:
354  *     no returned results
355  */
356 void fit_image_print(const void *fit, int image_noffset, const char *p)
357 {
358 	char *desc;
359 	uint8_t type, arch, os, comp;
360 	size_t size;
361 	ulong load, entry;
362 	const void *data;
363 	int noffset;
364 	int ndepth;
365 	int ret;
366 
367 	/* Mandatory properties */
368 	ret = fit_get_desc(fit, image_noffset, &desc);
369 	printf("%s  Description:  ", p);
370 	if (ret)
371 		printf("unavailable\n");
372 	else
373 		printf("%s\n", desc);
374 
375 	if (IMAGE_ENABLE_TIMESTAMP) {
376 		time_t timestamp;
377 
378 		ret = fit_get_timestamp(fit, 0, &timestamp);
379 		printf("%s  Created:      ", p);
380 		if (ret)
381 			printf("unavailable\n");
382 		else
383 			genimg_print_time(timestamp);
384 	}
385 
386 	fit_image_get_type(fit, image_noffset, &type);
387 	printf("%s  Type:         %s\n", p, genimg_get_type_name(type));
388 
389 	fit_image_get_comp(fit, image_noffset, &comp);
390 	printf("%s  Compression:  %s\n", p, genimg_get_comp_name(comp));
391 
392 	ret = fit_image_get_data(fit, image_noffset, &data, &size);
393 
394 #ifndef USE_HOSTCC
395 	printf("%s  Data Start:   ", p);
396 	if (ret) {
397 		printf("unavailable\n");
398 	} else {
399 		void *vdata = (void *)data;
400 
401 		printf("0x%08lx\n", (ulong)map_to_sysmem(vdata));
402 	}
403 #endif
404 
405 	printf("%s  Data Size:    ", p);
406 	if (ret)
407 		printf("unavailable\n");
408 	else
409 		genimg_print_size(size);
410 
411 	/* Remaining, type dependent properties */
412 	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
413 	    (type == IH_TYPE_RAMDISK) || (type == IH_TYPE_FIRMWARE) ||
414 	    (type == IH_TYPE_FLATDT)) {
415 		fit_image_get_arch(fit, image_noffset, &arch);
416 		printf("%s  Architecture: %s\n", p, genimg_get_arch_name(arch));
417 	}
418 
419 	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_RAMDISK)) {
420 		fit_image_get_os(fit, image_noffset, &os);
421 		printf("%s  OS:           %s\n", p, genimg_get_os_name(os));
422 	}
423 
424 	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
425 	    (type == IH_TYPE_FIRMWARE) || (type == IH_TYPE_RAMDISK) ||
426 	    (type == IH_TYPE_FPGA)) {
427 		ret = fit_image_get_load(fit, image_noffset, &load);
428 		printf("%s  Load Address: ", p);
429 		if (ret)
430 			printf("unavailable\n");
431 		else
432 			printf("0x%08lx\n", load);
433 	}
434 
435 	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
436 	    (type == IH_TYPE_RAMDISK)) {
437 		ret = fit_image_get_entry(fit, image_noffset, &entry);
438 		printf("%s  Entry Point:  ", p);
439 		if (ret)
440 			printf("unavailable\n");
441 		else
442 			printf("0x%08lx\n", entry);
443 	}
444 
445 	/* Process all hash subnodes of the component image node */
446 	for (ndepth = 0, noffset = fdt_next_node(fit, image_noffset, &ndepth);
447 	     (noffset >= 0) && (ndepth > 0);
448 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
449 		if (ndepth == 1) {
450 			/* Direct child node of the component image node */
451 			fit_image_print_verification_data(fit, noffset, p);
452 		}
453 	}
454 }
455 
456 #endif /* !defined(CONFIG_SPL_BUILD) || defined(CONFIG_FIT_SPL_PRINT) */
457 
458 /**
459  * fit_get_desc - get node description property
460  * @fit: pointer to the FIT format image header
461  * @noffset: node offset
462  * @desc: double pointer to the char, will hold pointer to the description
463  *
464  * fit_get_desc() reads description property from a given node, if
465  * description is found pointer to it is returned in third call argument.
466  *
467  * returns:
468  *     0, on success
469  *     -1, on failure
470  */
471 int fit_get_desc(const void *fit, int noffset, char **desc)
472 {
473 	int len;
474 
475 	*desc = (char *)fdt_getprop(fit, noffset, FIT_DESC_PROP, &len);
476 	if (*desc == NULL) {
477 		fit_get_debug(fit, noffset, FIT_DESC_PROP, len);
478 		return -1;
479 	}
480 
481 	return 0;
482 }
483 
484 /**
485  * fit_get_timestamp - get node timestamp property
486  * @fit: pointer to the FIT format image header
487  * @noffset: node offset
488  * @timestamp: pointer to the time_t, will hold read timestamp
489  *
490  * fit_get_timestamp() reads timestamp property from given node, if timestamp
491  * is found and has a correct size its value is returned in third call
492  * argument.
493  *
494  * returns:
495  *     0, on success
496  *     -1, on property read failure
497  *     -2, on wrong timestamp size
498  */
499 int fit_get_timestamp(const void *fit, int noffset, time_t *timestamp)
500 {
501 	int len;
502 	const void *data;
503 
504 	data = fdt_getprop(fit, noffset, FIT_TIMESTAMP_PROP, &len);
505 	if (data == NULL) {
506 		fit_get_debug(fit, noffset, FIT_TIMESTAMP_PROP, len);
507 		return -1;
508 	}
509 	if (len != sizeof(uint32_t)) {
510 		debug("FIT timestamp with incorrect size of (%u)\n", len);
511 		return -2;
512 	}
513 
514 	*timestamp = uimage_to_cpu(*((uint32_t *)data));
515 	return 0;
516 }
517 
518 /**
519  * fit_image_get_node - get node offset for component image of a given unit name
520  * @fit: pointer to the FIT format image header
521  * @image_uname: component image node unit name
522  *
523  * fit_image_get_node() finds a component image (within the '/images'
524  * node) of a provided unit name. If image is found its node offset is
525  * returned to the caller.
526  *
527  * returns:
528  *     image node offset when found (>=0)
529  *     negative number on failure (FDT_ERR_* code)
530  */
531 int fit_image_get_node(const void *fit, const char *image_uname)
532 {
533 	int noffset, images_noffset;
534 
535 	images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
536 	if (images_noffset < 0) {
537 		debug("Can't find images parent node '%s' (%s)\n",
538 		      FIT_IMAGES_PATH, fdt_strerror(images_noffset));
539 		return images_noffset;
540 	}
541 
542 	noffset = fdt_subnode_offset(fit, images_noffset, image_uname);
543 	if (noffset < 0) {
544 		debug("Can't get node offset for image unit name: '%s' (%s)\n",
545 		      image_uname, fdt_strerror(noffset));
546 	}
547 
548 	return noffset;
549 }
550 
551 /**
552  * fit_image_get_os - get os id for a given component image node
553  * @fit: pointer to the FIT format image header
554  * @noffset: component image node offset
555  * @os: pointer to the uint8_t, will hold os numeric id
556  *
557  * fit_image_get_os() finds os property in a given component image node.
558  * If the property is found, its (string) value is translated to the numeric
559  * id which is returned to the caller.
560  *
561  * returns:
562  *     0, on success
563  *     -1, on failure
564  */
565 int fit_image_get_os(const void *fit, int noffset, uint8_t *os)
566 {
567 	int len;
568 	const void *data;
569 
570 	/* Get OS name from property data */
571 	data = fdt_getprop(fit, noffset, FIT_OS_PROP, &len);
572 	if (data == NULL) {
573 		fit_get_debug(fit, noffset, FIT_OS_PROP, len);
574 		*os = -1;
575 		return -1;
576 	}
577 
578 	/* Translate OS name to id */
579 	*os = genimg_get_os_id(data);
580 	return 0;
581 }
582 
583 /**
584  * fit_image_get_arch - get arch id for a given component image node
585  * @fit: pointer to the FIT format image header
586  * @noffset: component image node offset
587  * @arch: pointer to the uint8_t, will hold arch numeric id
588  *
589  * fit_image_get_arch() finds arch property in a given component image node.
590  * If the property is found, its (string) value is translated to the numeric
591  * id which is returned to the caller.
592  *
593  * returns:
594  *     0, on success
595  *     -1, on failure
596  */
597 int fit_image_get_arch(const void *fit, int noffset, uint8_t *arch)
598 {
599 	int len;
600 	const void *data;
601 
602 	/* Get architecture name from property data */
603 	data = fdt_getprop(fit, noffset, FIT_ARCH_PROP, &len);
604 	if (data == NULL) {
605 		fit_get_debug(fit, noffset, FIT_ARCH_PROP, len);
606 		*arch = -1;
607 		return -1;
608 	}
609 
610 	/* Translate architecture name to id */
611 	*arch = genimg_get_arch_id(data);
612 	return 0;
613 }
614 
615 /**
616  * fit_image_get_type - get type id for a given component image node
617  * @fit: pointer to the FIT format image header
618  * @noffset: component image node offset
619  * @type: pointer to the uint8_t, will hold type numeric id
620  *
621  * fit_image_get_type() finds type property in a given component image node.
622  * If the property is found, its (string) value is translated to the numeric
623  * id which is returned to the caller.
624  *
625  * returns:
626  *     0, on success
627  *     -1, on failure
628  */
629 int fit_image_get_type(const void *fit, int noffset, uint8_t *type)
630 {
631 	int len;
632 	const void *data;
633 
634 	/* Get image type name from property data */
635 	data = fdt_getprop(fit, noffset, FIT_TYPE_PROP, &len);
636 	if (data == NULL) {
637 		fit_get_debug(fit, noffset, FIT_TYPE_PROP, len);
638 		*type = -1;
639 		return -1;
640 	}
641 
642 	/* Translate image type name to id */
643 	*type = genimg_get_type_id(data);
644 	return 0;
645 }
646 
647 /**
648  * fit_image_get_comp - get comp id for a given component image node
649  * @fit: pointer to the FIT format image header
650  * @noffset: component image node offset
651  * @comp: pointer to the uint8_t, will hold comp numeric id
652  *
653  * fit_image_get_comp() finds comp property in a given component image node.
654  * If the property is found, its (string) value is translated to the numeric
655  * id which is returned to the caller.
656  *
657  * returns:
658  *     0, on success
659  *     -1, on failure
660  */
661 int fit_image_get_comp(const void *fit, int noffset, uint8_t *comp)
662 {
663 	int len;
664 	const void *data;
665 
666 	/* Get compression name from property data */
667 	data = fdt_getprop(fit, noffset, FIT_COMP_PROP, &len);
668 	if (data == NULL) {
669 		fit_get_debug(fit, noffset, FIT_COMP_PROP, len);
670 		*comp = -1;
671 		return -1;
672 	}
673 
674 	/* Translate compression name to id */
675 	*comp = genimg_get_comp_id(data);
676 	return 0;
677 }
678 
679 static int fit_image_get_address(const void *fit, int noffset, char *name,
680 			  ulong *load)
681 {
682 	int len, cell_len;
683 	const fdt32_t *cell;
684 	uint64_t load64 = 0;
685 
686 	cell = fdt_getprop(fit, noffset, name, &len);
687 	if (cell == NULL) {
688 		fit_get_debug(fit, noffset, name, len);
689 		return -1;
690 	}
691 
692 	if (len > sizeof(ulong)) {
693 		printf("Unsupported %s address size\n", name);
694 		return -1;
695 	}
696 
697 	cell_len = len >> 2;
698 	/* Use load64 to avoid compiling warning for 32-bit target */
699 	while (cell_len--) {
700 		load64 = (load64 << 32) | uimage_to_cpu(*cell);
701 		cell++;
702 	}
703 	*load = (ulong)load64;
704 
705 	return 0;
706 }
707 /**
708  * fit_image_get_load() - get load addr property for given component image node
709  * @fit: pointer to the FIT format image header
710  * @noffset: component image node offset
711  * @load: pointer to the uint32_t, will hold load address
712  *
713  * fit_image_get_load() finds load address property in a given component
714  * image node. If the property is found, its value is returned to the caller.
715  *
716  * returns:
717  *     0, on success
718  *     -1, on failure
719  */
720 int fit_image_get_load(const void *fit, int noffset, ulong *load)
721 {
722 	return fit_image_get_address(fit, noffset, FIT_LOAD_PROP, load);
723 }
724 
725 /**
726  * fit_image_get_entry() - get entry point address property
727  * @fit: pointer to the FIT format image header
728  * @noffset: component image node offset
729  * @entry: pointer to the uint32_t, will hold entry point address
730  *
731  * This gets the entry point address property for a given component image
732  * node.
733  *
734  * fit_image_get_entry() finds entry point address property in a given
735  * component image node.  If the property is found, its value is returned
736  * to the caller.
737  *
738  * returns:
739  *     0, on success
740  *     -1, on failure
741  */
742 int fit_image_get_entry(const void *fit, int noffset, ulong *entry)
743 {
744 	return fit_image_get_address(fit, noffset, FIT_ENTRY_PROP, entry);
745 }
746 
747 /**
748  * fit_image_get_data - get data property and its size for a given component image node
749  * @fit: pointer to the FIT format image header
750  * @noffset: component image node offset
751  * @data: double pointer to void, will hold data property's data address
752  * @size: pointer to size_t, will hold data property's data size
753  *
754  * fit_image_get_data() finds data property in a given component image node.
755  * If the property is found its data start address and size are returned to
756  * the caller.
757  *
758  * returns:
759  *     0, on success
760  *     -1, on failure
761  */
762 int fit_image_get_data(const void *fit, int noffset,
763 		const void **data, size_t *size)
764 {
765 	int len;
766 
767 	*data = fdt_getprop(fit, noffset, FIT_DATA_PROP, &len);
768 	if (*data == NULL) {
769 		fit_get_debug(fit, noffset, FIT_DATA_PROP, len);
770 		*size = 0;
771 		return -1;
772 	}
773 
774 	*size = len;
775 	return 0;
776 }
777 
778 /**
779  * fit_image_hash_get_algo - get hash algorithm name
780  * @fit: pointer to the FIT format image header
781  * @noffset: hash node offset
782  * @algo: double pointer to char, will hold pointer to the algorithm name
783  *
784  * fit_image_hash_get_algo() finds hash algorithm property in a given hash node.
785  * If the property is found its data start address is returned to the caller.
786  *
787  * returns:
788  *     0, on success
789  *     -1, on failure
790  */
791 int fit_image_hash_get_algo(const void *fit, int noffset, char **algo)
792 {
793 	int len;
794 
795 	*algo = (char *)fdt_getprop(fit, noffset, FIT_ALGO_PROP, &len);
796 	if (*algo == NULL) {
797 		fit_get_debug(fit, noffset, FIT_ALGO_PROP, len);
798 		return -1;
799 	}
800 
801 	return 0;
802 }
803 
804 /**
805  * fit_image_hash_get_value - get hash value and length
806  * @fit: pointer to the FIT format image header
807  * @noffset: hash node offset
808  * @value: double pointer to uint8_t, will hold address of a hash value data
809  * @value_len: pointer to an int, will hold hash data length
810  *
811  * fit_image_hash_get_value() finds hash value property in a given hash node.
812  * If the property is found its data start address and size are returned to
813  * the caller.
814  *
815  * returns:
816  *     0, on success
817  *     -1, on failure
818  */
819 int fit_image_hash_get_value(const void *fit, int noffset, uint8_t **value,
820 				int *value_len)
821 {
822 	int len;
823 
824 	*value = (uint8_t *)fdt_getprop(fit, noffset, FIT_VALUE_PROP, &len);
825 	if (*value == NULL) {
826 		fit_get_debug(fit, noffset, FIT_VALUE_PROP, len);
827 		*value_len = 0;
828 		return -1;
829 	}
830 
831 	*value_len = len;
832 	return 0;
833 }
834 
835 /**
836  * fit_image_hash_get_ignore - get hash ignore flag
837  * @fit: pointer to the FIT format image header
838  * @noffset: hash node offset
839  * @ignore: pointer to an int, will hold hash ignore flag
840  *
841  * fit_image_hash_get_ignore() finds hash ignore property in a given hash node.
842  * If the property is found and non-zero, the hash algorithm is not verified by
843  * u-boot automatically.
844  *
845  * returns:
846  *     0, on ignore not found
847  *     value, on ignore found
848  */
849 static int fit_image_hash_get_ignore(const void *fit, int noffset, int *ignore)
850 {
851 	int len;
852 	int *value;
853 
854 	value = (int *)fdt_getprop(fit, noffset, FIT_IGNORE_PROP, &len);
855 	if (value == NULL || len != sizeof(int))
856 		*ignore = 0;
857 	else
858 		*ignore = *value;
859 
860 	return 0;
861 }
862 
863 ulong fit_get_end(const void *fit)
864 {
865 	return map_to_sysmem((void *)(fit + fdt_totalsize(fit)));
866 }
867 
868 /**
869  * fit_set_timestamp - set node timestamp property
870  * @fit: pointer to the FIT format image header
871  * @noffset: node offset
872  * @timestamp: timestamp value to be set
873  *
874  * fit_set_timestamp() attempts to set timestamp property in the requested
875  * node and returns operation status to the caller.
876  *
877  * returns:
878  *     0, on success
879  *     -ENOSPC if no space in device tree, -1 for other error
880  */
881 int fit_set_timestamp(void *fit, int noffset, time_t timestamp)
882 {
883 	uint32_t t;
884 	int ret;
885 
886 	t = cpu_to_uimage(timestamp);
887 	ret = fdt_setprop(fit, noffset, FIT_TIMESTAMP_PROP, &t,
888 				sizeof(uint32_t));
889 	if (ret) {
890 		debug("Can't set '%s' property for '%s' node (%s)\n",
891 		      FIT_TIMESTAMP_PROP, fit_get_name(fit, noffset, NULL),
892 		      fdt_strerror(ret));
893 		return ret == -FDT_ERR_NOSPACE ? -ENOSPC : -1;
894 	}
895 
896 	return 0;
897 }
898 
899 /**
900  * calculate_hash - calculate and return hash for provided input data
901  * @data: pointer to the input data
902  * @data_len: data length
903  * @algo: requested hash algorithm
904  * @value: pointer to the char, will hold hash value data (caller must
905  * allocate enough free space)
906  * value_len: length of the calculated hash
907  *
908  * calculate_hash() computes input data hash according to the requested
909  * algorithm.
910  * Resulting hash value is placed in caller provided 'value' buffer, length
911  * of the calculated hash is returned via value_len pointer argument.
912  *
913  * returns:
914  *     0, on success
915  *    -1, when algo is unsupported
916  */
917 int calculate_hash(const void *data, int data_len, const char *algo,
918 			uint8_t *value, int *value_len)
919 {
920 	if (IMAGE_ENABLE_CRC32 && strcmp(algo, "crc32") == 0) {
921 		*((uint32_t *)value) = crc32_wd(0, data, data_len,
922 							CHUNKSZ_CRC32);
923 		*((uint32_t *)value) = cpu_to_uimage(*((uint32_t *)value));
924 		*value_len = 4;
925 	} else if (IMAGE_ENABLE_SHA1 && strcmp(algo, "sha1") == 0) {
926 		sha1_csum_wd((unsigned char *)data, data_len,
927 			     (unsigned char *)value, CHUNKSZ_SHA1);
928 		*value_len = 20;
929 	} else if (IMAGE_ENABLE_SHA256 && strcmp(algo, "sha256") == 0) {
930 		sha256_csum_wd((unsigned char *)data, data_len,
931 			       (unsigned char *)value, CHUNKSZ_SHA256);
932 		*value_len = SHA256_SUM_LEN;
933 	} else if (IMAGE_ENABLE_MD5 && strcmp(algo, "md5") == 0) {
934 		md5_wd((unsigned char *)data, data_len, value, CHUNKSZ_MD5);
935 		*value_len = 16;
936 	} else {
937 		debug("Unsupported hash alogrithm\n");
938 		return -1;
939 	}
940 	return 0;
941 }
942 
943 static int fit_image_check_hash(const void *fit, int noffset, const void *data,
944 				size_t size, char **err_msgp)
945 {
946 	uint8_t value[FIT_MAX_HASH_LEN];
947 	int value_len;
948 	char *algo;
949 	uint8_t *fit_value;
950 	int fit_value_len;
951 	int ignore;
952 
953 	*err_msgp = NULL;
954 
955 	if (fit_image_hash_get_algo(fit, noffset, &algo)) {
956 		*err_msgp = "Can't get hash algo property";
957 		return -1;
958 	}
959 	printf("%s", algo);
960 
961 	if (IMAGE_ENABLE_IGNORE) {
962 		fit_image_hash_get_ignore(fit, noffset, &ignore);
963 		if (ignore) {
964 			printf("-skipped ");
965 			return 0;
966 		}
967 	}
968 
969 	if (fit_image_hash_get_value(fit, noffset, &fit_value,
970 				     &fit_value_len)) {
971 		*err_msgp = "Can't get hash value property";
972 		return -1;
973 	}
974 
975 	if (calculate_hash(data, size, algo, value, &value_len)) {
976 		*err_msgp = "Unsupported hash algorithm";
977 		return -1;
978 	}
979 
980 	if (value_len != fit_value_len) {
981 		*err_msgp = "Bad hash value len";
982 		return -1;
983 	} else if (memcmp(value, fit_value, value_len) != 0) {
984 		*err_msgp = "Bad hash value";
985 		return -1;
986 	}
987 
988 	return 0;
989 }
990 
991 /**
992  * fit_image_verify - verify data integrity
993  * @fit: pointer to the FIT format image header
994  * @image_noffset: component image node offset
995  *
996  * fit_image_verify() goes over component image hash nodes,
997  * re-calculates each data hash and compares with the value stored in hash
998  * node.
999  *
1000  * returns:
1001  *     1, if all hashes are valid
1002  *     0, otherwise (or on error)
1003  */
1004 int fit_image_verify(const void *fit, int image_noffset)
1005 {
1006 	const void	*data;
1007 	size_t		size;
1008 	int		noffset = 0;
1009 	char		*err_msg = "";
1010 	int verify_all = 1;
1011 	int ret;
1012 
1013 	/* Get image data and data length */
1014 	if (fit_image_get_data(fit, image_noffset, &data, &size)) {
1015 		err_msg = "Can't get image data/size";
1016 		goto error;
1017 	}
1018 
1019 	/* Verify all required signatures */
1020 	if (IMAGE_ENABLE_VERIFY &&
1021 	    fit_image_verify_required_sigs(fit, image_noffset, data, size,
1022 					   gd_fdt_blob(), &verify_all)) {
1023 		err_msg = "Unable to verify required signature";
1024 		goto error;
1025 	}
1026 
1027 	/* Process all hash subnodes of the component image node */
1028 	fdt_for_each_subnode(fit, noffset, image_noffset) {
1029 		const char *name = fit_get_name(fit, noffset, NULL);
1030 
1031 		/*
1032 		 * Check subnode name, must be equal to "hash".
1033 		 * Multiple hash nodes require unique unit node
1034 		 * names, e.g. hash@1, hash@2, etc.
1035 		 */
1036 		if (!strncmp(name, FIT_HASH_NODENAME,
1037 			     strlen(FIT_HASH_NODENAME))) {
1038 			if (fit_image_check_hash(fit, noffset, data, size,
1039 						 &err_msg))
1040 				goto error;
1041 			puts("+ ");
1042 		} else if (IMAGE_ENABLE_VERIFY && verify_all &&
1043 				!strncmp(name, FIT_SIG_NODENAME,
1044 					strlen(FIT_SIG_NODENAME))) {
1045 			ret = fit_image_check_sig(fit, noffset, data,
1046 							size, -1, &err_msg);
1047 
1048 			/*
1049 			 * Show an indication on failure, but do not return
1050 			 * an error. Only keys marked 'required' can cause
1051 			 * an image validation failure. See the call to
1052 			 * fit_image_verify_required_sigs() above.
1053 			 */
1054 			if (ret)
1055 				puts("- ");
1056 			else
1057 				puts("+ ");
1058 		}
1059 	}
1060 
1061 	if (noffset == -FDT_ERR_TRUNCATED || noffset == -FDT_ERR_BADSTRUCTURE) {
1062 		err_msg = "Corrupted or truncated tree";
1063 		goto error;
1064 	}
1065 
1066 	return 1;
1067 
1068 error:
1069 	printf(" error!\n%s for '%s' hash node in '%s' image node\n",
1070 	       err_msg, fit_get_name(fit, noffset, NULL),
1071 	       fit_get_name(fit, image_noffset, NULL));
1072 	return 0;
1073 }
1074 
1075 /**
1076  * fit_all_image_verify - verify data integrity for all images
1077  * @fit: pointer to the FIT format image header
1078  *
1079  * fit_all_image_verify() goes over all images in the FIT and
1080  * for every images checks if all it's hashes are valid.
1081  *
1082  * returns:
1083  *     1, if all hashes of all images are valid
1084  *     0, otherwise (or on error)
1085  */
1086 int fit_all_image_verify(const void *fit)
1087 {
1088 	int images_noffset;
1089 	int noffset;
1090 	int ndepth;
1091 	int count;
1092 
1093 	/* Find images parent node offset */
1094 	images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
1095 	if (images_noffset < 0) {
1096 		printf("Can't find images parent node '%s' (%s)\n",
1097 		       FIT_IMAGES_PATH, fdt_strerror(images_noffset));
1098 		return 0;
1099 	}
1100 
1101 	/* Process all image subnodes, check hashes for each */
1102 	printf("## Checking hash(es) for FIT Image at %08lx ...\n",
1103 	       (ulong)fit);
1104 	for (ndepth = 0, count = 0,
1105 	     noffset = fdt_next_node(fit, images_noffset, &ndepth);
1106 			(noffset >= 0) && (ndepth > 0);
1107 			noffset = fdt_next_node(fit, noffset, &ndepth)) {
1108 		if (ndepth == 1) {
1109 			/*
1110 			 * Direct child node of the images parent node,
1111 			 * i.e. component image node.
1112 			 */
1113 			printf("   Hash(es) for Image %u (%s): ", count,
1114 			       fit_get_name(fit, noffset, NULL));
1115 			count++;
1116 
1117 			if (!fit_image_verify(fit, noffset))
1118 				return 0;
1119 			printf("\n");
1120 		}
1121 	}
1122 	return 1;
1123 }
1124 
1125 /**
1126  * fit_image_check_os - check whether image node is of a given os type
1127  * @fit: pointer to the FIT format image header
1128  * @noffset: component image node offset
1129  * @os: requested image os
1130  *
1131  * fit_image_check_os() reads image os property and compares its numeric
1132  * id with the requested os. Comparison result is returned to the caller.
1133  *
1134  * returns:
1135  *     1 if image is of given os type
1136  *     0 otherwise (or on error)
1137  */
1138 int fit_image_check_os(const void *fit, int noffset, uint8_t os)
1139 {
1140 	uint8_t image_os;
1141 
1142 	if (fit_image_get_os(fit, noffset, &image_os))
1143 		return 0;
1144 	return (os == image_os);
1145 }
1146 
1147 /**
1148  * fit_image_check_arch - check whether image node is of a given arch
1149  * @fit: pointer to the FIT format image header
1150  * @noffset: component image node offset
1151  * @arch: requested imagearch
1152  *
1153  * fit_image_check_arch() reads image arch property and compares its numeric
1154  * id with the requested arch. Comparison result is returned to the caller.
1155  *
1156  * returns:
1157  *     1 if image is of given arch
1158  *     0 otherwise (or on error)
1159  */
1160 int fit_image_check_arch(const void *fit, int noffset, uint8_t arch)
1161 {
1162 	uint8_t image_arch;
1163 
1164 	if (fit_image_get_arch(fit, noffset, &image_arch))
1165 		return 0;
1166 	return (arch == image_arch) ||
1167 		(arch == IH_ARCH_I386 && image_arch == IH_ARCH_X86_64);
1168 }
1169 
1170 /**
1171  * fit_image_check_type - check whether image node is of a given type
1172  * @fit: pointer to the FIT format image header
1173  * @noffset: component image node offset
1174  * @type: requested image type
1175  *
1176  * fit_image_check_type() reads image type property and compares its numeric
1177  * id with the requested type. Comparison result is returned to the caller.
1178  *
1179  * returns:
1180  *     1 if image is of given type
1181  *     0 otherwise (or on error)
1182  */
1183 int fit_image_check_type(const void *fit, int noffset, uint8_t type)
1184 {
1185 	uint8_t image_type;
1186 
1187 	if (fit_image_get_type(fit, noffset, &image_type))
1188 		return 0;
1189 	return (type == image_type);
1190 }
1191 
1192 /**
1193  * fit_image_check_comp - check whether image node uses given compression
1194  * @fit: pointer to the FIT format image header
1195  * @noffset: component image node offset
1196  * @comp: requested image compression type
1197  *
1198  * fit_image_check_comp() reads image compression property and compares its
1199  * numeric id with the requested compression type. Comparison result is
1200  * returned to the caller.
1201  *
1202  * returns:
1203  *     1 if image uses requested compression
1204  *     0 otherwise (or on error)
1205  */
1206 int fit_image_check_comp(const void *fit, int noffset, uint8_t comp)
1207 {
1208 	uint8_t image_comp;
1209 
1210 	if (fit_image_get_comp(fit, noffset, &image_comp))
1211 		return 0;
1212 	return (comp == image_comp);
1213 }
1214 
1215 /**
1216  * fit_check_format - sanity check FIT image format
1217  * @fit: pointer to the FIT format image header
1218  *
1219  * fit_check_format() runs a basic sanity FIT image verification.
1220  * Routine checks for mandatory properties, nodes, etc.
1221  *
1222  * returns:
1223  *     1, on success
1224  *     0, on failure
1225  */
1226 int fit_check_format(const void *fit)
1227 {
1228 	/* mandatory / node 'description' property */
1229 	if (fdt_getprop(fit, 0, FIT_DESC_PROP, NULL) == NULL) {
1230 		debug("Wrong FIT format: no description\n");
1231 		return 0;
1232 	}
1233 
1234 	if (IMAGE_ENABLE_TIMESTAMP) {
1235 		/* mandatory / node 'timestamp' property */
1236 		if (fdt_getprop(fit, 0, FIT_TIMESTAMP_PROP, NULL) == NULL) {
1237 			debug("Wrong FIT format: no timestamp\n");
1238 			return 0;
1239 		}
1240 	}
1241 
1242 	/* mandatory subimages parent '/images' node */
1243 	if (fdt_path_offset(fit, FIT_IMAGES_PATH) < 0) {
1244 		debug("Wrong FIT format: no images parent node\n");
1245 		return 0;
1246 	}
1247 
1248 	return 1;
1249 }
1250 
1251 
1252 /**
1253  * fit_conf_find_compat
1254  * @fit: pointer to the FIT format image header
1255  * @fdt: pointer to the device tree to compare against
1256  *
1257  * fit_conf_find_compat() attempts to find the configuration whose fdt is the
1258  * most compatible with the passed in device tree.
1259  *
1260  * Example:
1261  *
1262  * / o image-tree
1263  *   |-o images
1264  *   | |-o fdt@1
1265  *   | |-o fdt@2
1266  *   |
1267  *   |-o configurations
1268  *     |-o config@1
1269  *     | |-fdt = fdt@1
1270  *     |
1271  *     |-o config@2
1272  *       |-fdt = fdt@2
1273  *
1274  * / o U-Boot fdt
1275  *   |-compatible = "foo,bar", "bim,bam"
1276  *
1277  * / o kernel fdt1
1278  *   |-compatible = "foo,bar",
1279  *
1280  * / o kernel fdt2
1281  *   |-compatible = "bim,bam", "baz,biz"
1282  *
1283  * Configuration 1 would be picked because the first string in U-Boot's
1284  * compatible list, "foo,bar", matches a compatible string in the root of fdt1.
1285  * "bim,bam" in fdt2 matches the second string which isn't as good as fdt1.
1286  *
1287  * returns:
1288  *     offset to the configuration to use if one was found
1289  *     -1 otherwise
1290  */
1291 int fit_conf_find_compat(const void *fit, const void *fdt)
1292 {
1293 	int ndepth = 0;
1294 	int noffset, confs_noffset, images_noffset;
1295 	const void *fdt_compat;
1296 	int fdt_compat_len;
1297 	int best_match_offset = 0;
1298 	int best_match_pos = 0;
1299 
1300 	confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH);
1301 	images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
1302 	if (confs_noffset < 0 || images_noffset < 0) {
1303 		debug("Can't find configurations or images nodes.\n");
1304 		return -1;
1305 	}
1306 
1307 	fdt_compat = fdt_getprop(fdt, 0, "compatible", &fdt_compat_len);
1308 	if (!fdt_compat) {
1309 		debug("Fdt for comparison has no \"compatible\" property.\n");
1310 		return -1;
1311 	}
1312 
1313 	/*
1314 	 * Loop over the configurations in the FIT image.
1315 	 */
1316 	for (noffset = fdt_next_node(fit, confs_noffset, &ndepth);
1317 			(noffset >= 0) && (ndepth > 0);
1318 			noffset = fdt_next_node(fit, noffset, &ndepth)) {
1319 		const void *kfdt;
1320 		const char *kfdt_name;
1321 		int kfdt_noffset;
1322 		const char *cur_fdt_compat;
1323 		int len;
1324 		size_t size;
1325 		int i;
1326 
1327 		if (ndepth > 1)
1328 			continue;
1329 
1330 		kfdt_name = fdt_getprop(fit, noffset, "fdt", &len);
1331 		if (!kfdt_name) {
1332 			debug("No fdt property found.\n");
1333 			continue;
1334 		}
1335 		kfdt_noffset = fdt_subnode_offset(fit, images_noffset,
1336 						  kfdt_name);
1337 		if (kfdt_noffset < 0) {
1338 			debug("No image node named \"%s\" found.\n",
1339 			      kfdt_name);
1340 			continue;
1341 		}
1342 		/*
1343 		 * Get a pointer to this configuration's fdt.
1344 		 */
1345 		if (fit_image_get_data(fit, kfdt_noffset, &kfdt, &size)) {
1346 			debug("Failed to get fdt \"%s\".\n", kfdt_name);
1347 			continue;
1348 		}
1349 
1350 		len = fdt_compat_len;
1351 		cur_fdt_compat = fdt_compat;
1352 		/*
1353 		 * Look for a match for each U-Boot compatibility string in
1354 		 * turn in this configuration's fdt.
1355 		 */
1356 		for (i = 0; len > 0 &&
1357 		     (!best_match_offset || best_match_pos > i); i++) {
1358 			int cur_len = strlen(cur_fdt_compat) + 1;
1359 
1360 			if (!fdt_node_check_compatible(kfdt, 0,
1361 						       cur_fdt_compat)) {
1362 				best_match_offset = noffset;
1363 				best_match_pos = i;
1364 				break;
1365 			}
1366 			len -= cur_len;
1367 			cur_fdt_compat += cur_len;
1368 		}
1369 	}
1370 	if (!best_match_offset) {
1371 		debug("No match found.\n");
1372 		return -1;
1373 	}
1374 
1375 	return best_match_offset;
1376 }
1377 
1378 /**
1379  * fit_conf_get_node - get node offset for configuration of a given unit name
1380  * @fit: pointer to the FIT format image header
1381  * @conf_uname: configuration node unit name
1382  *
1383  * fit_conf_get_node() finds a configuration (within the '/configurations'
1384  * parent node) of a provided unit name. If configuration is found its node
1385  * offset is returned to the caller.
1386  *
1387  * When NULL is provided in second argument fit_conf_get_node() will search
1388  * for a default configuration node instead. Default configuration node unit
1389  * name is retrieved from FIT_DEFAULT_PROP property of the '/configurations'
1390  * node.
1391  *
1392  * returns:
1393  *     configuration node offset when found (>=0)
1394  *     negative number on failure (FDT_ERR_* code)
1395  */
1396 int fit_conf_get_node(const void *fit, const char *conf_uname)
1397 {
1398 	int noffset, confs_noffset;
1399 	int len;
1400 
1401 	confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH);
1402 	if (confs_noffset < 0) {
1403 		debug("Can't find configurations parent node '%s' (%s)\n",
1404 		      FIT_CONFS_PATH, fdt_strerror(confs_noffset));
1405 		return confs_noffset;
1406 	}
1407 
1408 	if (conf_uname == NULL) {
1409 		/* get configuration unit name from the default property */
1410 		debug("No configuration specified, trying default...\n");
1411 		conf_uname = (char *)fdt_getprop(fit, confs_noffset,
1412 						 FIT_DEFAULT_PROP, &len);
1413 		if (conf_uname == NULL) {
1414 			fit_get_debug(fit, confs_noffset, FIT_DEFAULT_PROP,
1415 				      len);
1416 			return len;
1417 		}
1418 		debug("Found default configuration: '%s'\n", conf_uname);
1419 	}
1420 
1421 	noffset = fdt_subnode_offset(fit, confs_noffset, conf_uname);
1422 	if (noffset < 0) {
1423 		debug("Can't get node offset for configuration unit name: '%s' (%s)\n",
1424 		      conf_uname, fdt_strerror(noffset));
1425 	}
1426 
1427 	return noffset;
1428 }
1429 
1430 int fit_conf_get_prop_node(const void *fit, int noffset,
1431 		const char *prop_name)
1432 {
1433 	char *uname;
1434 	int len;
1435 
1436 	/* get kernel image unit name from configuration kernel property */
1437 	uname = (char *)fdt_getprop(fit, noffset, prop_name, &len);
1438 	if (uname == NULL)
1439 		return len;
1440 
1441 	return fit_image_get_node(fit, uname);
1442 }
1443 
1444 /**
1445  * fit_conf_print - prints out the FIT configuration details
1446  * @fit: pointer to the FIT format image header
1447  * @noffset: offset of the configuration node
1448  * @p: pointer to prefix string
1449  *
1450  * fit_conf_print() lists all mandatory properties for the processed
1451  * configuration node.
1452  *
1453  * returns:
1454  *     no returned results
1455  */
1456 void fit_conf_print(const void *fit, int noffset, const char *p)
1457 {
1458 	char *desc;
1459 	char *uname;
1460 	int ret;
1461 	int loadables_index;
1462 
1463 	/* Mandatory properties */
1464 	ret = fit_get_desc(fit, noffset, &desc);
1465 	printf("%s  Description:  ", p);
1466 	if (ret)
1467 		printf("unavailable\n");
1468 	else
1469 		printf("%s\n", desc);
1470 
1471 	uname = (char *)fdt_getprop(fit, noffset, FIT_KERNEL_PROP, NULL);
1472 	printf("%s  Kernel:       ", p);
1473 	if (uname == NULL)
1474 		printf("unavailable\n");
1475 	else
1476 		printf("%s\n", uname);
1477 
1478 	/* Optional properties */
1479 	uname = (char *)fdt_getprop(fit, noffset, FIT_RAMDISK_PROP, NULL);
1480 	if (uname)
1481 		printf("%s  Init Ramdisk: %s\n", p, uname);
1482 
1483 	uname = (char *)fdt_getprop(fit, noffset, FIT_FDT_PROP, NULL);
1484 	if (uname)
1485 		printf("%s  FDT:          %s\n", p, uname);
1486 
1487 	uname = (char *)fdt_getprop(fit, noffset, FIT_FPGA_PROP, NULL);
1488 	if (uname)
1489 		printf("%s  FPGA:         %s\n", p, uname);
1490 
1491 	/* Print out all of the specified loadables */
1492 	for (loadables_index = 0;
1493 	     fdt_get_string_index(fit, noffset,
1494 			FIT_LOADABLE_PROP,
1495 			loadables_index,
1496 			(const char **)&uname) == 0;
1497 	     loadables_index++)
1498 	{
1499 		if (loadables_index == 0) {
1500 			printf("%s  Loadables:    ", p);
1501 		} else {
1502 			printf("%s                ", p);
1503 		}
1504 		printf("%s\n", uname);
1505 	}
1506 }
1507 
1508 static int fit_image_select(const void *fit, int rd_noffset, int verify)
1509 {
1510 	fit_image_print(fit, rd_noffset, "   ");
1511 
1512 	if (verify) {
1513 		puts("   Verifying Hash Integrity ... ");
1514 		if (!fit_image_verify(fit, rd_noffset)) {
1515 			puts("Bad Data Hash\n");
1516 			return -EACCES;
1517 		}
1518 		puts("OK\n");
1519 	}
1520 
1521 	return 0;
1522 }
1523 
1524 int fit_get_node_from_config(bootm_headers_t *images, const char *prop_name,
1525 			ulong addr)
1526 {
1527 	int cfg_noffset;
1528 	void *fit_hdr;
1529 	int noffset;
1530 
1531 	debug("*  %s: using config '%s' from image at 0x%08lx\n",
1532 	      prop_name, images->fit_uname_cfg, addr);
1533 
1534 	/* Check whether configuration has this property defined */
1535 	fit_hdr = map_sysmem(addr, 0);
1536 	cfg_noffset = fit_conf_get_node(fit_hdr, images->fit_uname_cfg);
1537 	if (cfg_noffset < 0) {
1538 		debug("*  %s: no such config\n", prop_name);
1539 		return -ENOENT;
1540 	}
1541 
1542 	noffset = fit_conf_get_prop_node(fit_hdr, cfg_noffset, prop_name);
1543 	if (noffset < 0) {
1544 		debug("*  %s: no '%s' in config\n", prop_name, prop_name);
1545 		return -ENOLINK;
1546 	}
1547 
1548 	return noffset;
1549 }
1550 
1551 /**
1552  * fit_get_image_type_property() - get property name for IH_TYPE_...
1553  *
1554  * @return the properly name where we expect to find the image in the
1555  * config node
1556  */
1557 static const char *fit_get_image_type_property(int type)
1558 {
1559 	/*
1560 	 * This is sort-of available in the uimage_type[] table in image.c
1561 	 * but we don't have access to the short name, and "fdt" is different
1562 	 * anyway. So let's just keep it here.
1563 	 */
1564 	switch (type) {
1565 	case IH_TYPE_FLATDT:
1566 		return FIT_FDT_PROP;
1567 	case IH_TYPE_KERNEL:
1568 		return FIT_KERNEL_PROP;
1569 	case IH_TYPE_RAMDISK:
1570 		return FIT_RAMDISK_PROP;
1571 	case IH_TYPE_X86_SETUP:
1572 		return FIT_SETUP_PROP;
1573 	case IH_TYPE_LOADABLE:
1574 		return FIT_LOADABLE_PROP;
1575 	case IH_TYPE_FPGA:
1576 		return FIT_FPGA_PROP;
1577 	}
1578 
1579 	return "unknown";
1580 }
1581 
1582 int fit_image_load(bootm_headers_t *images, ulong addr,
1583 		   const char **fit_unamep, const char **fit_uname_configp,
1584 		   int arch, int image_type, int bootstage_id,
1585 		   enum fit_load_op load_op, ulong *datap, ulong *lenp)
1586 {
1587 	int cfg_noffset, noffset;
1588 	const char *fit_uname;
1589 	const char *fit_uname_config;
1590 	const void *fit;
1591 	const void *buf;
1592 	size_t size;
1593 	int type_ok, os_ok;
1594 	ulong load, data, len;
1595 	uint8_t os;
1596 	const char *prop_name;
1597 	int ret;
1598 
1599 	fit = map_sysmem(addr, 0);
1600 	fit_uname = fit_unamep ? *fit_unamep : NULL;
1601 	fit_uname_config = fit_uname_configp ? *fit_uname_configp : NULL;
1602 	prop_name = fit_get_image_type_property(image_type);
1603 	printf("## Loading %s from FIT Image at %08lx ...\n", prop_name, addr);
1604 
1605 	bootstage_mark(bootstage_id + BOOTSTAGE_SUB_FORMAT);
1606 	if (!fit_check_format(fit)) {
1607 		printf("Bad FIT %s image format!\n", prop_name);
1608 		bootstage_error(bootstage_id + BOOTSTAGE_SUB_FORMAT);
1609 		return -ENOEXEC;
1610 	}
1611 	bootstage_mark(bootstage_id + BOOTSTAGE_SUB_FORMAT_OK);
1612 	if (fit_uname) {
1613 		/* get FIT component image node offset */
1614 		bootstage_mark(bootstage_id + BOOTSTAGE_SUB_UNIT_NAME);
1615 		noffset = fit_image_get_node(fit, fit_uname);
1616 	} else {
1617 		/*
1618 		 * no image node unit name, try to get config
1619 		 * node first. If config unit node name is NULL
1620 		 * fit_conf_get_node() will try to find default config node
1621 		 */
1622 		bootstage_mark(bootstage_id + BOOTSTAGE_SUB_NO_UNIT_NAME);
1623 		if (IMAGE_ENABLE_BEST_MATCH && !fit_uname_config) {
1624 			cfg_noffset = fit_conf_find_compat(fit, gd_fdt_blob());
1625 		} else {
1626 			cfg_noffset = fit_conf_get_node(fit,
1627 							fit_uname_config);
1628 		}
1629 		if (cfg_noffset < 0) {
1630 			puts("Could not find configuration node\n");
1631 			bootstage_error(bootstage_id +
1632 					BOOTSTAGE_SUB_NO_UNIT_NAME);
1633 			return -ENOENT;
1634 		}
1635 		fit_uname_config = fdt_get_name(fit, cfg_noffset, NULL);
1636 		printf("   Using '%s' configuration\n", fit_uname_config);
1637 		if (image_type == IH_TYPE_KERNEL) {
1638 			/* Remember (and possibly verify) this config */
1639 			images->fit_uname_cfg = fit_uname_config;
1640 			if (IMAGE_ENABLE_VERIFY && images->verify) {
1641 				puts("   Verifying Hash Integrity ... ");
1642 				if (fit_config_verify(fit, cfg_noffset)) {
1643 					puts("Bad Data Hash\n");
1644 					bootstage_error(bootstage_id +
1645 						BOOTSTAGE_SUB_HASH);
1646 					return -EACCES;
1647 				}
1648 				puts("OK\n");
1649 			}
1650 			bootstage_mark(BOOTSTAGE_ID_FIT_CONFIG);
1651 		}
1652 
1653 		noffset = fit_conf_get_prop_node(fit, cfg_noffset,
1654 						 prop_name);
1655 		fit_uname = fit_get_name(fit, noffset, NULL);
1656 	}
1657 	if (noffset < 0) {
1658 		puts("Could not find subimage node\n");
1659 		bootstage_error(bootstage_id + BOOTSTAGE_SUB_SUBNODE);
1660 		return -ENOENT;
1661 	}
1662 
1663 	printf("   Trying '%s' %s subimage\n", fit_uname, prop_name);
1664 
1665 	ret = fit_image_select(fit, noffset, images->verify);
1666 	if (ret) {
1667 		bootstage_error(bootstage_id + BOOTSTAGE_SUB_HASH);
1668 		return ret;
1669 	}
1670 
1671 	bootstage_mark(bootstage_id + BOOTSTAGE_SUB_CHECK_ARCH);
1672 #if !defined(USE_HOSTCC) && !defined(CONFIG_SANDBOX)
1673 	if (!fit_image_check_target_arch(fit, noffset)) {
1674 		puts("Unsupported Architecture\n");
1675 		bootstage_error(bootstage_id + BOOTSTAGE_SUB_CHECK_ARCH);
1676 		return -ENOEXEC;
1677 	}
1678 #endif
1679 	if (image_type == IH_TYPE_FLATDT &&
1680 	    !fit_image_check_comp(fit, noffset, IH_COMP_NONE)) {
1681 		puts("FDT image is compressed");
1682 		return -EPROTONOSUPPORT;
1683 	}
1684 
1685 	bootstage_mark(bootstage_id + BOOTSTAGE_SUB_CHECK_ALL);
1686 	type_ok = fit_image_check_type(fit, noffset, image_type) ||
1687 		(image_type == IH_TYPE_KERNEL &&
1688 			fit_image_check_type(fit, noffset,
1689 					     IH_TYPE_KERNEL_NOLOAD));
1690 
1691 	os_ok = image_type == IH_TYPE_FLATDT || IH_TYPE_FPGA ||
1692 		fit_image_check_os(fit, noffset, IH_OS_LINUX) ||
1693 		fit_image_check_os(fit, noffset, IH_OS_OPENRTOS);
1694 
1695 	/*
1696 	 * If either of the checks fail, we should report an error, but
1697 	 * if the image type is coming from the "loadables" field, we
1698 	 * don't care what it is
1699 	 */
1700 	if ((!type_ok || !os_ok) && image_type != IH_TYPE_LOADABLE) {
1701 		fit_image_get_os(fit, noffset, &os);
1702 		printf("No %s %s %s Image\n",
1703 		       genimg_get_os_name(os),
1704 		       genimg_get_arch_name(arch),
1705 		       genimg_get_type_name(image_type));
1706 		bootstage_error(bootstage_id + BOOTSTAGE_SUB_CHECK_ALL);
1707 		return -EIO;
1708 	}
1709 
1710 	bootstage_mark(bootstage_id + BOOTSTAGE_SUB_CHECK_ALL_OK);
1711 
1712 	/* get image data address and length */
1713 	if (fit_image_get_data(fit, noffset, &buf, &size)) {
1714 		printf("Could not find %s subimage data!\n", prop_name);
1715 		bootstage_error(bootstage_id + BOOTSTAGE_SUB_GET_DATA);
1716 		return -ENOENT;
1717 	}
1718 	len = (ulong)size;
1719 
1720 	/* verify that image data is a proper FDT blob */
1721 	if (image_type == IH_TYPE_FLATDT && fdt_check_header(buf)) {
1722 		puts("Subimage data is not a FDT");
1723 		return -ENOEXEC;
1724 	}
1725 
1726 	bootstage_mark(bootstage_id + BOOTSTAGE_SUB_GET_DATA_OK);
1727 
1728 	/*
1729 	 * Work-around for eldk-4.2 which gives this warning if we try to
1730 	 * cast in the unmap_sysmem() call:
1731 	 * warning: initialization discards qualifiers from pointer target type
1732 	 */
1733 	{
1734 		void *vbuf = (void *)buf;
1735 
1736 		data = map_to_sysmem(vbuf);
1737 	}
1738 
1739 	if (load_op == FIT_LOAD_IGNORED) {
1740 		/* Don't load */
1741 	} else if (fit_image_get_load(fit, noffset, &load)) {
1742 		if (load_op == FIT_LOAD_REQUIRED) {
1743 			printf("Can't get %s subimage load address!\n",
1744 			       prop_name);
1745 			bootstage_error(bootstage_id + BOOTSTAGE_SUB_LOAD);
1746 			return -EBADF;
1747 		}
1748 	} else if (load_op != FIT_LOAD_OPTIONAL_NON_ZERO || load) {
1749 		ulong image_start, image_end;
1750 		ulong load_end;
1751 		void *dst;
1752 
1753 		/*
1754 		 * move image data to the load address,
1755 		 * make sure we don't overwrite initial image
1756 		 */
1757 		image_start = addr;
1758 		image_end = addr + fit_get_size(fit);
1759 
1760 		load_end = load + len;
1761 		if (image_type != IH_TYPE_KERNEL &&
1762 		    load < image_end && load_end > image_start) {
1763 			printf("Error: %s overwritten\n", prop_name);
1764 			return -EXDEV;
1765 		}
1766 
1767 		printf("   Loading %s from 0x%08lx to 0x%08lx\n",
1768 		       prop_name, data, load);
1769 
1770 		dst = map_sysmem(load, len);
1771 		memmove(dst, buf, len);
1772 		data = load;
1773 	}
1774 	bootstage_mark(bootstage_id + BOOTSTAGE_SUB_LOAD);
1775 
1776 	*datap = data;
1777 	*lenp = len;
1778 	if (fit_unamep)
1779 		*fit_unamep = (char *)fit_uname;
1780 	if (fit_uname_configp)
1781 		*fit_uname_configp = (char *)fit_uname_config;
1782 
1783 	return noffset;
1784 }
1785 
1786 int boot_get_setup_fit(bootm_headers_t *images, uint8_t arch,
1787 			ulong *setup_start, ulong *setup_len)
1788 {
1789 	int noffset;
1790 	ulong addr;
1791 	ulong len;
1792 	int ret;
1793 
1794 	addr = map_to_sysmem(images->fit_hdr_os);
1795 	noffset = fit_get_node_from_config(images, FIT_SETUP_PROP, addr);
1796 	if (noffset < 0)
1797 		return noffset;
1798 
1799 	ret = fit_image_load(images, addr, NULL, NULL, arch,
1800 			     IH_TYPE_X86_SETUP, BOOTSTAGE_ID_FIT_SETUP_START,
1801 			     FIT_LOAD_REQUIRED, setup_start, &len);
1802 
1803 	return ret;
1804 }
1805