1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (c) 2013, Google Inc. 4 * 5 * (C) Copyright 2008 Semihalf 6 * 7 * (C) Copyright 2000-2006 8 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 9 */ 10 11 #ifdef USE_HOSTCC 12 #include "mkimage.h" 13 #include <time.h> 14 #else 15 #include <linux/compiler.h> 16 #include <linux/kconfig.h> 17 #include <common.h> 18 #include <errno.h> 19 #include <mapmem.h> 20 #include <asm/io.h> 21 #include <malloc.h> 22 DECLARE_GLOBAL_DATA_PTR; 23 #endif /* !USE_HOSTCC*/ 24 25 #include <image.h> 26 #include <bootstage.h> 27 #include <u-boot/crc.h> 28 #include <u-boot/md5.h> 29 #include <u-boot/sha1.h> 30 #include <u-boot/sha256.h> 31 #include <u-boot/sha512.h> 32 33 /*****************************************************************************/ 34 /* New uImage format routines */ 35 /*****************************************************************************/ 36 #ifndef USE_HOSTCC 37 static int fit_parse_spec(const char *spec, char sepc, ulong addr_curr, 38 ulong *addr, const char **name) 39 { 40 const char *sep; 41 42 *addr = addr_curr; 43 *name = NULL; 44 45 sep = strchr(spec, sepc); 46 if (sep) { 47 if (sep - spec > 0) 48 *addr = simple_strtoul(spec, NULL, 16); 49 50 *name = sep + 1; 51 return 1; 52 } 53 54 return 0; 55 } 56 57 /** 58 * fit_parse_conf - parse FIT configuration spec 59 * @spec: input string, containing configuration spec 60 * @add_curr: current image address (to be used as a possible default) 61 * @addr: pointer to a ulong variable, will hold FIT image address of a given 62 * configuration 63 * @conf_name double pointer to a char, will hold pointer to a configuration 64 * unit name 65 * 66 * fit_parse_conf() expects configuration spec in the form of [<addr>]#<conf>, 67 * where <addr> is a FIT image address that contains configuration 68 * with a <conf> unit name. 69 * 70 * Address part is optional, and if omitted default add_curr will 71 * be used instead. 72 * 73 * returns: 74 * 1 if spec is a valid configuration string, 75 * addr and conf_name are set accordingly 76 * 0 otherwise 77 */ 78 int fit_parse_conf(const char *spec, ulong addr_curr, 79 ulong *addr, const char **conf_name) 80 { 81 return fit_parse_spec(spec, '#', addr_curr, addr, conf_name); 82 } 83 84 /** 85 * fit_parse_subimage - parse FIT subimage spec 86 * @spec: input string, containing subimage spec 87 * @add_curr: current image address (to be used as a possible default) 88 * @addr: pointer to a ulong variable, will hold FIT image address of a given 89 * subimage 90 * @image_name: double pointer to a char, will hold pointer to a subimage name 91 * 92 * fit_parse_subimage() expects subimage spec in the form of 93 * [<addr>]:<subimage>, where <addr> is a FIT image address that contains 94 * subimage with a <subimg> unit name. 95 * 96 * Address part is optional, and if omitted default add_curr will 97 * be used instead. 98 * 99 * returns: 100 * 1 if spec is a valid subimage string, 101 * addr and image_name are set accordingly 102 * 0 otherwise 103 */ 104 int fit_parse_subimage(const char *spec, ulong addr_curr, 105 ulong *addr, const char **image_name) 106 { 107 return fit_parse_spec(spec, ':', addr_curr, addr, image_name); 108 } 109 #endif /* !USE_HOSTCC */ 110 111 static void fit_get_debug(const void *fit, int noffset, 112 char *prop_name, int err) 113 { 114 debug("Can't get '%s' property from FIT 0x%08lx, node: offset %d, name %s (%s)\n", 115 prop_name, (ulong)fit, noffset, fit_get_name(fit, noffset, NULL), 116 fdt_strerror(err)); 117 } 118 119 /** 120 * fit_get_subimage_count - get component (sub-image) count 121 * @fit: pointer to the FIT format image header 122 * @images_noffset: offset of images node 123 * 124 * returns: 125 * number of image components 126 */ 127 int fit_get_subimage_count(const void *fit, int images_noffset) 128 { 129 int noffset; 130 int ndepth; 131 int count = 0; 132 133 /* Process its subnodes, print out component images details */ 134 for (ndepth = 0, count = 0, 135 noffset = fdt_next_node(fit, images_noffset, &ndepth); 136 (noffset >= 0) && (ndepth > 0); 137 noffset = fdt_next_node(fit, noffset, &ndepth)) { 138 if (ndepth == 1) { 139 count++; 140 } 141 } 142 143 return count; 144 } 145 146 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_FIT_PRINT) 147 /** 148 * fit_image_print_data() - prints out the hash node details 149 * @fit: pointer to the FIT format image header 150 * @noffset: offset of the hash node 151 * @p: pointer to prefix string 152 * @type: Type of information to print ("hash" or "sign") 153 * 154 * fit_image_print_data() lists properties for the processed hash node 155 * 156 * This function avoid using puts() since it prints a newline on the host 157 * but does not in U-Boot. 158 * 159 * returns: 160 * no returned results 161 */ 162 static void fit_image_print_data(const void *fit, int noffset, const char *p, 163 const char *type) 164 { 165 const char *keyname; 166 uint8_t *value; 167 int value_len; 168 char *algo; 169 const char *padding; 170 int required; 171 int ret, i; 172 173 debug("%s %s node: '%s'\n", p, type, 174 fit_get_name(fit, noffset, NULL)); 175 printf("%s %s algo: ", p, type); 176 if (fit_image_hash_get_algo(fit, noffset, &algo)) { 177 printf("invalid/unsupported\n"); 178 return; 179 } 180 printf("%s", algo); 181 keyname = fdt_getprop(fit, noffset, "key-name-hint", NULL); 182 required = fdt_getprop(fit, noffset, "required", NULL) != NULL; 183 if (keyname) 184 printf(":%s", keyname); 185 if (required) 186 printf(" (required)"); 187 printf("\n"); 188 189 padding = fdt_getprop(fit, noffset, "padding", NULL); 190 if (padding) 191 printf("%s %s padding: %s\n", p, type, padding); 192 193 ret = fit_image_hash_get_value(fit, noffset, &value, 194 &value_len); 195 printf("%s %s value: ", p, type); 196 if (ret) { 197 printf("unavailable\n"); 198 } else { 199 for (i = 0; i < value_len; i++) 200 printf("%02x", value[i]); 201 printf("\n"); 202 } 203 204 debug("%s %s len: %d\n", p, type, value_len); 205 206 /* Signatures have a time stamp */ 207 if (IMAGE_ENABLE_TIMESTAMP && keyname) { 208 time_t timestamp; 209 210 printf("%s Timestamp: ", p); 211 if (fit_get_timestamp(fit, noffset, ×tamp)) 212 printf("unavailable\n"); 213 else 214 genimg_print_time(timestamp); 215 } 216 } 217 218 /** 219 * fit_image_print_verification_data() - prints out the hash/signature details 220 * @fit: pointer to the FIT format image header 221 * @noffset: offset of the hash or signature node 222 * @p: pointer to prefix string 223 * 224 * This lists properties for the processed hash node 225 * 226 * returns: 227 * no returned results 228 */ 229 static void fit_image_print_verification_data(const void *fit, int noffset, 230 const char *p) 231 { 232 const char *name; 233 234 /* 235 * Check subnode name, must be equal to "hash" or "signature". 236 * Multiple hash/signature nodes require unique unit node 237 * names, e.g. hash-1, hash-2, signature-1, signature-2, etc. 238 */ 239 name = fit_get_name(fit, noffset, NULL); 240 if (!strncmp(name, FIT_HASH_NODENAME, strlen(FIT_HASH_NODENAME))) { 241 fit_image_print_data(fit, noffset, p, "Hash"); 242 } else if (!strncmp(name, FIT_SIG_NODENAME, 243 strlen(FIT_SIG_NODENAME))) { 244 fit_image_print_data(fit, noffset, p, "Sign"); 245 } 246 } 247 248 /** 249 * fit_conf_print - prints out the FIT configuration details 250 * @fit: pointer to the FIT format image header 251 * @noffset: offset of the configuration node 252 * @p: pointer to prefix string 253 * 254 * fit_conf_print() lists all mandatory properties for the processed 255 * configuration node. 256 * 257 * returns: 258 * no returned results 259 */ 260 static void fit_conf_print(const void *fit, int noffset, const char *p) 261 { 262 char *desc; 263 const char *uname; 264 int ret; 265 int fdt_index, loadables_index; 266 int ndepth; 267 268 /* Mandatory properties */ 269 ret = fit_get_desc(fit, noffset, &desc); 270 printf("%s Description: ", p); 271 if (ret) 272 printf("unavailable\n"); 273 else 274 printf("%s\n", desc); 275 276 uname = fdt_getprop(fit, noffset, FIT_KERNEL_PROP, NULL); 277 printf("%s Kernel: ", p); 278 if (!uname) 279 printf("unavailable\n"); 280 else 281 printf("%s\n", uname); 282 283 /* Optional properties */ 284 uname = fdt_getprop(fit, noffset, FIT_RAMDISK_PROP, NULL); 285 if (uname) 286 printf("%s Init Ramdisk: %s\n", p, uname); 287 288 uname = fdt_getprop(fit, noffset, FIT_FIRMWARE_PROP, NULL); 289 if (uname) 290 printf("%s Firmware: %s\n", p, uname); 291 292 for (fdt_index = 0; 293 uname = fdt_stringlist_get(fit, noffset, FIT_FDT_PROP, 294 fdt_index, NULL), uname; 295 fdt_index++) { 296 if (fdt_index == 0) 297 printf("%s FDT: ", p); 298 else 299 printf("%s ", p); 300 printf("%s\n", uname); 301 } 302 303 uname = fdt_getprop(fit, noffset, FIT_FPGA_PROP, NULL); 304 if (uname) 305 printf("%s FPGA: %s\n", p, uname); 306 307 /* Print out all of the specified loadables */ 308 for (loadables_index = 0; 309 uname = fdt_stringlist_get(fit, noffset, FIT_LOADABLE_PROP, 310 loadables_index, NULL), uname; 311 loadables_index++) { 312 if (loadables_index == 0) { 313 printf("%s Loadables: ", p); 314 } else { 315 printf("%s ", p); 316 } 317 printf("%s\n", uname); 318 } 319 320 /* Process all hash subnodes of the component configuration node */ 321 for (ndepth = 0, noffset = fdt_next_node(fit, noffset, &ndepth); 322 (noffset >= 0) && (ndepth > 0); 323 noffset = fdt_next_node(fit, noffset, &ndepth)) { 324 if (ndepth == 1) { 325 /* Direct child node of the component configuration node */ 326 fit_image_print_verification_data(fit, noffset, p); 327 } 328 } 329 } 330 331 /** 332 * fit_print_contents - prints out the contents of the FIT format image 333 * @fit: pointer to the FIT format image header 334 * @p: pointer to prefix string 335 * 336 * fit_print_contents() formats a multi line FIT image contents description. 337 * The routine prints out FIT image properties (root node level) followed by 338 * the details of each component image. 339 * 340 * returns: 341 * no returned results 342 */ 343 void fit_print_contents(const void *fit) 344 { 345 char *desc; 346 char *uname; 347 int images_noffset; 348 int confs_noffset; 349 int noffset; 350 int ndepth; 351 int count = 0; 352 int ret; 353 const char *p; 354 time_t timestamp; 355 356 /* Indent string is defined in header image.h */ 357 p = IMAGE_INDENT_STRING; 358 359 /* Root node properties */ 360 ret = fit_get_desc(fit, 0, &desc); 361 printf("%sFIT description: ", p); 362 if (ret) 363 printf("unavailable\n"); 364 else 365 printf("%s\n", desc); 366 367 if (IMAGE_ENABLE_TIMESTAMP) { 368 ret = fit_get_timestamp(fit, 0, ×tamp); 369 printf("%sCreated: ", p); 370 if (ret) 371 printf("unavailable\n"); 372 else 373 genimg_print_time(timestamp); 374 } 375 376 /* Find images parent node offset */ 377 images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH); 378 if (images_noffset < 0) { 379 printf("Can't find images parent node '%s' (%s)\n", 380 FIT_IMAGES_PATH, fdt_strerror(images_noffset)); 381 return; 382 } 383 384 /* Process its subnodes, print out component images details */ 385 for (ndepth = 0, count = 0, 386 noffset = fdt_next_node(fit, images_noffset, &ndepth); 387 (noffset >= 0) && (ndepth > 0); 388 noffset = fdt_next_node(fit, noffset, &ndepth)) { 389 if (ndepth == 1) { 390 /* 391 * Direct child node of the images parent node, 392 * i.e. component image node. 393 */ 394 printf("%s Image %u (%s)\n", p, count++, 395 fit_get_name(fit, noffset, NULL)); 396 397 fit_image_print(fit, noffset, p); 398 } 399 } 400 401 /* Find configurations parent node offset */ 402 confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH); 403 if (confs_noffset < 0) { 404 debug("Can't get configurations parent node '%s' (%s)\n", 405 FIT_CONFS_PATH, fdt_strerror(confs_noffset)); 406 return; 407 } 408 409 /* get default configuration unit name from default property */ 410 uname = (char *)fdt_getprop(fit, noffset, FIT_DEFAULT_PROP, NULL); 411 if (uname) 412 printf("%s Default Configuration: '%s'\n", p, uname); 413 414 /* Process its subnodes, print out configurations details */ 415 for (ndepth = 0, count = 0, 416 noffset = fdt_next_node(fit, confs_noffset, &ndepth); 417 (noffset >= 0) && (ndepth > 0); 418 noffset = fdt_next_node(fit, noffset, &ndepth)) { 419 if (ndepth == 1) { 420 /* 421 * Direct child node of the configurations parent node, 422 * i.e. configuration node. 423 */ 424 printf("%s Configuration %u (%s)\n", p, count++, 425 fit_get_name(fit, noffset, NULL)); 426 427 fit_conf_print(fit, noffset, p); 428 } 429 } 430 } 431 432 /** 433 * fit_image_print - prints out the FIT component image details 434 * @fit: pointer to the FIT format image header 435 * @image_noffset: offset of the component image node 436 * @p: pointer to prefix string 437 * 438 * fit_image_print() lists all mandatory properties for the processed component 439 * image. If present, hash nodes are printed out as well. Load 440 * address for images of type firmware is also printed out. Since the load 441 * address is not mandatory for firmware images, it will be output as 442 * "unavailable" when not present. 443 * 444 * returns: 445 * no returned results 446 */ 447 void fit_image_print(const void *fit, int image_noffset, const char *p) 448 { 449 char *desc; 450 uint8_t type, arch, os, comp; 451 size_t size; 452 ulong load, entry; 453 const void *data; 454 int noffset; 455 int ndepth; 456 int ret; 457 458 /* Mandatory properties */ 459 ret = fit_get_desc(fit, image_noffset, &desc); 460 printf("%s Description: ", p); 461 if (ret) 462 printf("unavailable\n"); 463 else 464 printf("%s\n", desc); 465 466 if (IMAGE_ENABLE_TIMESTAMP) { 467 time_t timestamp; 468 469 ret = fit_get_timestamp(fit, 0, ×tamp); 470 printf("%s Created: ", p); 471 if (ret) 472 printf("unavailable\n"); 473 else 474 genimg_print_time(timestamp); 475 } 476 477 fit_image_get_type(fit, image_noffset, &type); 478 printf("%s Type: %s\n", p, genimg_get_type_name(type)); 479 480 fit_image_get_comp(fit, image_noffset, &comp); 481 printf("%s Compression: %s\n", p, genimg_get_comp_name(comp)); 482 483 ret = fit_image_get_data_and_size(fit, image_noffset, &data, &size); 484 485 #ifndef USE_HOSTCC 486 printf("%s Data Start: ", p); 487 if (ret) { 488 printf("unavailable\n"); 489 } else { 490 void *vdata = (void *)data; 491 492 printf("0x%08lx\n", (ulong)map_to_sysmem(vdata)); 493 } 494 #endif 495 496 printf("%s Data Size: ", p); 497 if (ret) 498 printf("unavailable\n"); 499 else 500 genimg_print_size(size); 501 502 /* Remaining, type dependent properties */ 503 if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) || 504 (type == IH_TYPE_RAMDISK) || (type == IH_TYPE_FIRMWARE) || 505 (type == IH_TYPE_FLATDT)) { 506 fit_image_get_arch(fit, image_noffset, &arch); 507 printf("%s Architecture: %s\n", p, genimg_get_arch_name(arch)); 508 } 509 510 if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_RAMDISK) || 511 (type == IH_TYPE_FIRMWARE)) { 512 fit_image_get_os(fit, image_noffset, &os); 513 printf("%s OS: %s\n", p, genimg_get_os_name(os)); 514 } 515 516 if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) || 517 (type == IH_TYPE_FIRMWARE) || (type == IH_TYPE_RAMDISK) || 518 (type == IH_TYPE_FPGA)) { 519 ret = fit_image_get_load(fit, image_noffset, &load); 520 printf("%s Load Address: ", p); 521 if (ret) 522 printf("unavailable\n"); 523 else 524 printf("0x%08lx\n", load); 525 } 526 527 /* optional load address for FDT */ 528 if (type == IH_TYPE_FLATDT && !fit_image_get_load(fit, image_noffset, &load)) 529 printf("%s Load Address: 0x%08lx\n", p, load); 530 531 if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) || 532 (type == IH_TYPE_RAMDISK)) { 533 ret = fit_image_get_entry(fit, image_noffset, &entry); 534 printf("%s Entry Point: ", p); 535 if (ret) 536 printf("unavailable\n"); 537 else 538 printf("0x%08lx\n", entry); 539 } 540 541 /* Process all hash subnodes of the component image node */ 542 for (ndepth = 0, noffset = fdt_next_node(fit, image_noffset, &ndepth); 543 (noffset >= 0) && (ndepth > 0); 544 noffset = fdt_next_node(fit, noffset, &ndepth)) { 545 if (ndepth == 1) { 546 /* Direct child node of the component image node */ 547 fit_image_print_verification_data(fit, noffset, p); 548 } 549 } 550 } 551 #else 552 void fit_print_contents(const void *fit) { } 553 void fit_image_print(const void *fit, int image_noffset, const char *p) { } 554 #endif /* !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_FIT_PRINT) */ 555 556 /** 557 * fit_get_desc - get node description property 558 * @fit: pointer to the FIT format image header 559 * @noffset: node offset 560 * @desc: double pointer to the char, will hold pointer to the description 561 * 562 * fit_get_desc() reads description property from a given node, if 563 * description is found pointer to it is returned in third call argument. 564 * 565 * returns: 566 * 0, on success 567 * -1, on failure 568 */ 569 int fit_get_desc(const void *fit, int noffset, char **desc) 570 { 571 int len; 572 573 *desc = (char *)fdt_getprop(fit, noffset, FIT_DESC_PROP, &len); 574 if (*desc == NULL) { 575 fit_get_debug(fit, noffset, FIT_DESC_PROP, len); 576 return -1; 577 } 578 579 return 0; 580 } 581 582 /** 583 * fit_get_timestamp - get node timestamp property 584 * @fit: pointer to the FIT format image header 585 * @noffset: node offset 586 * @timestamp: pointer to the time_t, will hold read timestamp 587 * 588 * fit_get_timestamp() reads timestamp property from given node, if timestamp 589 * is found and has a correct size its value is returned in third call 590 * argument. 591 * 592 * returns: 593 * 0, on success 594 * -1, on property read failure 595 * -2, on wrong timestamp size 596 */ 597 int fit_get_timestamp(const void *fit, int noffset, time_t *timestamp) 598 { 599 int len; 600 const void *data; 601 602 data = fdt_getprop(fit, noffset, FIT_TIMESTAMP_PROP, &len); 603 if (data == NULL) { 604 fit_get_debug(fit, noffset, FIT_TIMESTAMP_PROP, len); 605 return -1; 606 } 607 if (len != sizeof(uint32_t)) { 608 debug("FIT timestamp with incorrect size of (%u)\n", len); 609 return -2; 610 } 611 612 *timestamp = uimage_to_cpu(*((uint32_t *)data)); 613 return 0; 614 } 615 616 /** 617 * fit_image_get_node - get node offset for component image of a given unit name 618 * @fit: pointer to the FIT format image header 619 * @image_uname: component image node unit name 620 * 621 * fit_image_get_node() finds a component image (within the '/images' 622 * node) of a provided unit name. If image is found its node offset is 623 * returned to the caller. 624 * 625 * returns: 626 * image node offset when found (>=0) 627 * negative number on failure (FDT_ERR_* code) 628 */ 629 int fit_image_get_node(const void *fit, const char *image_uname) 630 { 631 int noffset, images_noffset; 632 633 images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH); 634 if (images_noffset < 0) { 635 debug("Can't find images parent node '%s' (%s)\n", 636 FIT_IMAGES_PATH, fdt_strerror(images_noffset)); 637 return images_noffset; 638 } 639 640 noffset = fdt_subnode_offset(fit, images_noffset, image_uname); 641 if (noffset < 0) { 642 debug("Can't get node offset for image unit name: '%s' (%s)\n", 643 image_uname, fdt_strerror(noffset)); 644 } 645 646 return noffset; 647 } 648 649 /** 650 * fit_image_get_os - get os id for a given component image node 651 * @fit: pointer to the FIT format image header 652 * @noffset: component image node offset 653 * @os: pointer to the uint8_t, will hold os numeric id 654 * 655 * fit_image_get_os() finds os property in a given component image node. 656 * If the property is found, its (string) value is translated to the numeric 657 * id which is returned to the caller. 658 * 659 * returns: 660 * 0, on success 661 * -1, on failure 662 */ 663 int fit_image_get_os(const void *fit, int noffset, uint8_t *os) 664 { 665 int len; 666 const void *data; 667 668 /* Get OS name from property data */ 669 data = fdt_getprop(fit, noffset, FIT_OS_PROP, &len); 670 if (data == NULL) { 671 fit_get_debug(fit, noffset, FIT_OS_PROP, len); 672 *os = -1; 673 return -1; 674 } 675 676 /* Translate OS name to id */ 677 *os = genimg_get_os_id(data); 678 return 0; 679 } 680 681 /** 682 * fit_image_get_arch - get arch id for a given component image node 683 * @fit: pointer to the FIT format image header 684 * @noffset: component image node offset 685 * @arch: pointer to the uint8_t, will hold arch numeric id 686 * 687 * fit_image_get_arch() finds arch property in a given component image node. 688 * If the property is found, its (string) value is translated to the numeric 689 * id which is returned to the caller. 690 * 691 * returns: 692 * 0, on success 693 * -1, on failure 694 */ 695 int fit_image_get_arch(const void *fit, int noffset, uint8_t *arch) 696 { 697 int len; 698 const void *data; 699 700 /* Get architecture name from property data */ 701 data = fdt_getprop(fit, noffset, FIT_ARCH_PROP, &len); 702 if (data == NULL) { 703 fit_get_debug(fit, noffset, FIT_ARCH_PROP, len); 704 *arch = -1; 705 return -1; 706 } 707 708 /* Translate architecture name to id */ 709 *arch = genimg_get_arch_id(data); 710 return 0; 711 } 712 713 /** 714 * fit_image_get_type - get type id for a given component image node 715 * @fit: pointer to the FIT format image header 716 * @noffset: component image node offset 717 * @type: pointer to the uint8_t, will hold type numeric id 718 * 719 * fit_image_get_type() finds type property in a given component image node. 720 * If the property is found, its (string) value is translated to the numeric 721 * id which is returned to the caller. 722 * 723 * returns: 724 * 0, on success 725 * -1, on failure 726 */ 727 int fit_image_get_type(const void *fit, int noffset, uint8_t *type) 728 { 729 int len; 730 const void *data; 731 732 /* Get image type name from property data */ 733 data = fdt_getprop(fit, noffset, FIT_TYPE_PROP, &len); 734 if (data == NULL) { 735 fit_get_debug(fit, noffset, FIT_TYPE_PROP, len); 736 *type = -1; 737 return -1; 738 } 739 740 /* Translate image type name to id */ 741 *type = genimg_get_type_id(data); 742 return 0; 743 } 744 745 /** 746 * fit_image_get_comp - get comp id for a given component image node 747 * @fit: pointer to the FIT format image header 748 * @noffset: component image node offset 749 * @comp: pointer to the uint8_t, will hold comp numeric id 750 * 751 * fit_image_get_comp() finds comp property in a given component image node. 752 * If the property is found, its (string) value is translated to the numeric 753 * id which is returned to the caller. 754 * 755 * returns: 756 * 0, on success 757 * -1, on failure 758 */ 759 int fit_image_get_comp(const void *fit, int noffset, uint8_t *comp) 760 { 761 int len; 762 const void *data; 763 764 /* Get compression name from property data */ 765 data = fdt_getprop(fit, noffset, FIT_COMP_PROP, &len); 766 if (data == NULL) { 767 fit_get_debug(fit, noffset, FIT_COMP_PROP, len); 768 *comp = -1; 769 return -1; 770 } 771 772 /* Translate compression name to id */ 773 *comp = genimg_get_comp_id(data); 774 return 0; 775 } 776 777 static int fit_image_get_address(const void *fit, int noffset, char *name, 778 ulong *load) 779 { 780 int len, cell_len; 781 const fdt32_t *cell; 782 uint64_t load64 = 0; 783 784 cell = fdt_getprop(fit, noffset, name, &len); 785 if (cell == NULL) { 786 fit_get_debug(fit, noffset, name, len); 787 return -1; 788 } 789 790 if (len > sizeof(ulong)) { 791 printf("Unsupported %s address size\n", name); 792 return -1; 793 } 794 795 cell_len = len >> 2; 796 /* Use load64 to avoid compiling warning for 32-bit target */ 797 while (cell_len--) { 798 load64 = (load64 << 32) | uimage_to_cpu(*cell); 799 cell++; 800 } 801 *load = (ulong)load64; 802 803 return 0; 804 } 805 /** 806 * fit_image_get_load() - get load addr property for given component image node 807 * @fit: pointer to the FIT format image header 808 * @noffset: component image node offset 809 * @load: pointer to the uint32_t, will hold load address 810 * 811 * fit_image_get_load() finds load address property in a given component 812 * image node. If the property is found, its value is returned to the caller. 813 * 814 * returns: 815 * 0, on success 816 * -1, on failure 817 */ 818 int fit_image_get_load(const void *fit, int noffset, ulong *load) 819 { 820 return fit_image_get_address(fit, noffset, FIT_LOAD_PROP, load); 821 } 822 823 /** 824 * fit_image_get_entry() - get entry point address property 825 * @fit: pointer to the FIT format image header 826 * @noffset: component image node offset 827 * @entry: pointer to the uint32_t, will hold entry point address 828 * 829 * This gets the entry point address property for a given component image 830 * node. 831 * 832 * fit_image_get_entry() finds entry point address property in a given 833 * component image node. If the property is found, its value is returned 834 * to the caller. 835 * 836 * returns: 837 * 0, on success 838 * -1, on failure 839 */ 840 int fit_image_get_entry(const void *fit, int noffset, ulong *entry) 841 { 842 return fit_image_get_address(fit, noffset, FIT_ENTRY_PROP, entry); 843 } 844 845 /** 846 * fit_image_get_data - get data property and its size for a given component image node 847 * @fit: pointer to the FIT format image header 848 * @noffset: component image node offset 849 * @data: double pointer to void, will hold data property's data address 850 * @size: pointer to size_t, will hold data property's data size 851 * 852 * fit_image_get_data() finds data property in a given component image node. 853 * If the property is found its data start address and size are returned to 854 * the caller. 855 * 856 * returns: 857 * 0, on success 858 * -1, on failure 859 */ 860 int fit_image_get_data(const void *fit, int noffset, 861 const void **data, size_t *size) 862 { 863 int len; 864 865 *data = fdt_getprop(fit, noffset, FIT_DATA_PROP, &len); 866 if (*data == NULL) { 867 fit_get_debug(fit, noffset, FIT_DATA_PROP, len); 868 *size = 0; 869 return -1; 870 } 871 872 *size = len; 873 return 0; 874 } 875 876 /** 877 * Get 'data-offset' property from a given image node. 878 * 879 * @fit: pointer to the FIT image header 880 * @noffset: component image node offset 881 * @data_offset: holds the data-offset property 882 * 883 * returns: 884 * 0, on success 885 * -ENOENT if the property could not be found 886 */ 887 int fit_image_get_data_offset(const void *fit, int noffset, int *data_offset) 888 { 889 const fdt32_t *val; 890 891 val = fdt_getprop(fit, noffset, FIT_DATA_OFFSET_PROP, NULL); 892 if (!val) 893 return -ENOENT; 894 895 *data_offset = fdt32_to_cpu(*val); 896 897 return 0; 898 } 899 900 /** 901 * Get 'data-position' property from a given image node. 902 * 903 * @fit: pointer to the FIT image header 904 * @noffset: component image node offset 905 * @data_position: holds the data-position property 906 * 907 * returns: 908 * 0, on success 909 * -ENOENT if the property could not be found 910 */ 911 int fit_image_get_data_position(const void *fit, int noffset, 912 int *data_position) 913 { 914 const fdt32_t *val; 915 916 val = fdt_getprop(fit, noffset, FIT_DATA_POSITION_PROP, NULL); 917 if (!val) 918 return -ENOENT; 919 920 *data_position = fdt32_to_cpu(*val); 921 922 return 0; 923 } 924 925 /** 926 * Get 'data-size' property from a given image node. 927 * 928 * @fit: pointer to the FIT image header 929 * @noffset: component image node offset 930 * @data_size: holds the data-size property 931 * 932 * returns: 933 * 0, on success 934 * -ENOENT if the property could not be found 935 */ 936 int fit_image_get_data_size(const void *fit, int noffset, int *data_size) 937 { 938 const fdt32_t *val; 939 940 val = fdt_getprop(fit, noffset, FIT_DATA_SIZE_PROP, NULL); 941 if (!val) 942 return -ENOENT; 943 944 *data_size = fdt32_to_cpu(*val); 945 946 return 0; 947 } 948 949 /** 950 * fit_image_get_data_and_size - get data and its size including 951 * both embedded and external data 952 * @fit: pointer to the FIT format image header 953 * @noffset: component image node offset 954 * @data: double pointer to void, will hold data property's data address 955 * @size: pointer to size_t, will hold data property's data size 956 * 957 * fit_image_get_data_and_size() finds data and its size including 958 * both embedded and external data. If the property is found 959 * its data start address and size are returned to the caller. 960 * 961 * returns: 962 * 0, on success 963 * otherwise, on failure 964 */ 965 int fit_image_get_data_and_size(const void *fit, int noffset, 966 const void **data, size_t *size) 967 { 968 bool external_data = false; 969 int offset; 970 int len; 971 int ret; 972 973 if (!fit_image_get_data_position(fit, noffset, &offset)) { 974 external_data = true; 975 } else if (!fit_image_get_data_offset(fit, noffset, &offset)) { 976 external_data = true; 977 /* 978 * For FIT with external data, figure out where 979 * the external images start. This is the base 980 * for the data-offset properties in each image. 981 */ 982 offset += ((fdt_totalsize(fit) + 3) & ~3); 983 } 984 985 if (external_data) { 986 debug("External Data\n"); 987 ret = fit_image_get_data_size(fit, noffset, &len); 988 if (!ret) { 989 *data = fit + offset; 990 *size = len; 991 } 992 } else { 993 ret = fit_image_get_data(fit, noffset, data, size); 994 } 995 996 return ret; 997 } 998 999 /** 1000 * fit_image_hash_get_algo - get hash algorithm name 1001 * @fit: pointer to the FIT format image header 1002 * @noffset: hash node offset 1003 * @algo: double pointer to char, will hold pointer to the algorithm name 1004 * 1005 * fit_image_hash_get_algo() finds hash algorithm property in a given hash node. 1006 * If the property is found its data start address is returned to the caller. 1007 * 1008 * returns: 1009 * 0, on success 1010 * -1, on failure 1011 */ 1012 int fit_image_hash_get_algo(const void *fit, int noffset, char **algo) 1013 { 1014 int len; 1015 1016 *algo = (char *)fdt_getprop(fit, noffset, FIT_ALGO_PROP, &len); 1017 if (*algo == NULL) { 1018 fit_get_debug(fit, noffset, FIT_ALGO_PROP, len); 1019 return -1; 1020 } 1021 1022 return 0; 1023 } 1024 1025 /** 1026 * fit_image_hash_get_value - get hash value and length 1027 * @fit: pointer to the FIT format image header 1028 * @noffset: hash node offset 1029 * @value: double pointer to uint8_t, will hold address of a hash value data 1030 * @value_len: pointer to an int, will hold hash data length 1031 * 1032 * fit_image_hash_get_value() finds hash value property in a given hash node. 1033 * If the property is found its data start address and size are returned to 1034 * the caller. 1035 * 1036 * returns: 1037 * 0, on success 1038 * -1, on failure 1039 */ 1040 int fit_image_hash_get_value(const void *fit, int noffset, uint8_t **value, 1041 int *value_len) 1042 { 1043 int len; 1044 1045 *value = (uint8_t *)fdt_getprop(fit, noffset, FIT_VALUE_PROP, &len); 1046 if (*value == NULL) { 1047 fit_get_debug(fit, noffset, FIT_VALUE_PROP, len); 1048 *value_len = 0; 1049 return -1; 1050 } 1051 1052 *value_len = len; 1053 return 0; 1054 } 1055 1056 /** 1057 * fit_image_hash_get_ignore - get hash ignore flag 1058 * @fit: pointer to the FIT format image header 1059 * @noffset: hash node offset 1060 * @ignore: pointer to an int, will hold hash ignore flag 1061 * 1062 * fit_image_hash_get_ignore() finds hash ignore property in a given hash node. 1063 * If the property is found and non-zero, the hash algorithm is not verified by 1064 * u-boot automatically. 1065 * 1066 * returns: 1067 * 0, on ignore not found 1068 * value, on ignore found 1069 */ 1070 static int fit_image_hash_get_ignore(const void *fit, int noffset, int *ignore) 1071 { 1072 int len; 1073 int *value; 1074 1075 value = (int *)fdt_getprop(fit, noffset, FIT_IGNORE_PROP, &len); 1076 if (value == NULL || len != sizeof(int)) 1077 *ignore = 0; 1078 else 1079 *ignore = *value; 1080 1081 return 0; 1082 } 1083 1084 ulong fit_get_end(const void *fit) 1085 { 1086 return map_to_sysmem((void *)(fit + fdt_totalsize(fit))); 1087 } 1088 1089 /** 1090 * fit_set_timestamp - set node timestamp property 1091 * @fit: pointer to the FIT format image header 1092 * @noffset: node offset 1093 * @timestamp: timestamp value to be set 1094 * 1095 * fit_set_timestamp() attempts to set timestamp property in the requested 1096 * node and returns operation status to the caller. 1097 * 1098 * returns: 1099 * 0, on success 1100 * -ENOSPC if no space in device tree, -1 for other error 1101 */ 1102 int fit_set_timestamp(void *fit, int noffset, time_t timestamp) 1103 { 1104 uint32_t t; 1105 int ret; 1106 1107 t = cpu_to_uimage(timestamp); 1108 ret = fdt_setprop(fit, noffset, FIT_TIMESTAMP_PROP, &t, 1109 sizeof(uint32_t)); 1110 if (ret) { 1111 debug("Can't set '%s' property for '%s' node (%s)\n", 1112 FIT_TIMESTAMP_PROP, fit_get_name(fit, noffset, NULL), 1113 fdt_strerror(ret)); 1114 return ret == -FDT_ERR_NOSPACE ? -ENOSPC : -1; 1115 } 1116 1117 return 0; 1118 } 1119 1120 /** 1121 * calculate_hash - calculate and return hash for provided input data 1122 * @data: pointer to the input data 1123 * @data_len: data length 1124 * @algo: requested hash algorithm 1125 * @value: pointer to the char, will hold hash value data (caller must 1126 * allocate enough free space) 1127 * value_len: length of the calculated hash 1128 * 1129 * calculate_hash() computes input data hash according to the requested 1130 * algorithm. 1131 * Resulting hash value is placed in caller provided 'value' buffer, length 1132 * of the calculated hash is returned via value_len pointer argument. 1133 * 1134 * returns: 1135 * 0, on success 1136 * -1, when algo is unsupported 1137 */ 1138 int calculate_hash(const void *data, int data_len, const char *algo, 1139 uint8_t *value, int *value_len) 1140 { 1141 if (IMAGE_ENABLE_CRC32 && strcmp(algo, "crc32") == 0) { 1142 *((uint32_t *)value) = crc32_wd(0, data, data_len, 1143 CHUNKSZ_CRC32); 1144 *((uint32_t *)value) = cpu_to_uimage(*((uint32_t *)value)); 1145 *value_len = 4; 1146 } else if (IMAGE_ENABLE_SHA1 && strcmp(algo, "sha1") == 0) { 1147 sha1_csum_wd((unsigned char *)data, data_len, 1148 (unsigned char *)value, CHUNKSZ_SHA1); 1149 *value_len = 20; 1150 } else if (IMAGE_ENABLE_SHA256 && strcmp(algo, "sha256") == 0) { 1151 sha256_csum_wd((unsigned char *)data, data_len, 1152 (unsigned char *)value, CHUNKSZ_SHA256); 1153 *value_len = SHA256_SUM_LEN; 1154 } else if (IMAGE_ENABLE_SHA384 && strcmp(algo, "sha384") == 0) { 1155 sha384_csum_wd((unsigned char *)data, data_len, 1156 (unsigned char *)value, CHUNKSZ_SHA384); 1157 *value_len = SHA384_SUM_LEN; 1158 } else if (IMAGE_ENABLE_SHA512 && strcmp(algo, "sha512") == 0) { 1159 sha512_csum_wd((unsigned char *)data, data_len, 1160 (unsigned char *)value, CHUNKSZ_SHA512); 1161 *value_len = SHA512_SUM_LEN; 1162 } else if (IMAGE_ENABLE_MD5 && strcmp(algo, "md5") == 0) { 1163 md5_wd((unsigned char *)data, data_len, value, CHUNKSZ_MD5); 1164 *value_len = 16; 1165 } else { 1166 debug("Unsupported hash alogrithm\n"); 1167 return -1; 1168 } 1169 return 0; 1170 } 1171 1172 static int fit_image_check_hash(const void *fit, int noffset, const void *data, 1173 size_t size, char **err_msgp) 1174 { 1175 uint8_t value[FIT_MAX_HASH_LEN]; 1176 int value_len; 1177 char *algo; 1178 uint8_t *fit_value; 1179 int fit_value_len; 1180 int ignore; 1181 1182 *err_msgp = NULL; 1183 1184 if (fit_image_hash_get_algo(fit, noffset, &algo)) { 1185 *err_msgp = "Can't get hash algo property"; 1186 return -1; 1187 } 1188 printf("%s", algo); 1189 1190 if (IMAGE_ENABLE_IGNORE) { 1191 fit_image_hash_get_ignore(fit, noffset, &ignore); 1192 if (ignore) { 1193 printf("-skipped "); 1194 return 0; 1195 } 1196 } 1197 1198 if (fit_image_hash_get_value(fit, noffset, &fit_value, 1199 &fit_value_len)) { 1200 *err_msgp = "Can't get hash value property"; 1201 return -1; 1202 } 1203 1204 if (calculate_hash(data, size, algo, value, &value_len)) { 1205 *err_msgp = "Unsupported hash algorithm"; 1206 return -1; 1207 } 1208 1209 if (value_len != fit_value_len) { 1210 *err_msgp = "Bad hash value len"; 1211 return -1; 1212 } else if (memcmp(value, fit_value, value_len) != 0) { 1213 *err_msgp = "Bad hash value"; 1214 return -1; 1215 } 1216 1217 return 0; 1218 } 1219 1220 int fit_image_verify_with_data(const void *fit, int image_noffset, 1221 const void *data, size_t size) 1222 { 1223 int noffset = 0; 1224 char *err_msg = ""; 1225 int verify_all = 1; 1226 int ret; 1227 1228 /* Verify all required signatures */ 1229 if (IMAGE_ENABLE_VERIFY && 1230 fit_image_verify_required_sigs(fit, image_noffset, data, size, 1231 gd_fdt_blob(), &verify_all)) { 1232 err_msg = "Unable to verify required signature"; 1233 goto error; 1234 } 1235 1236 /* Process all hash subnodes of the component image node */ 1237 fdt_for_each_subnode(noffset, fit, image_noffset) { 1238 const char *name = fit_get_name(fit, noffset, NULL); 1239 1240 /* 1241 * Check subnode name, must be equal to "hash". 1242 * Multiple hash nodes require unique unit node 1243 * names, e.g. hash-1, hash-2, etc. 1244 */ 1245 if (!strncmp(name, FIT_HASH_NODENAME, 1246 strlen(FIT_HASH_NODENAME))) { 1247 if (fit_image_check_hash(fit, noffset, data, size, 1248 &err_msg)) 1249 goto error; 1250 puts("+ "); 1251 } else if (IMAGE_ENABLE_VERIFY && verify_all && 1252 !strncmp(name, FIT_SIG_NODENAME, 1253 strlen(FIT_SIG_NODENAME))) { 1254 ret = fit_image_check_sig(fit, noffset, data, 1255 size, -1, &err_msg); 1256 1257 /* 1258 * Show an indication on failure, but do not return 1259 * an error. Only keys marked 'required' can cause 1260 * an image validation failure. See the call to 1261 * fit_image_verify_required_sigs() above. 1262 */ 1263 if (ret) 1264 puts("- "); 1265 else 1266 puts("+ "); 1267 } 1268 } 1269 1270 if (noffset == -FDT_ERR_TRUNCATED || noffset == -FDT_ERR_BADSTRUCTURE) { 1271 err_msg = "Corrupted or truncated tree"; 1272 goto error; 1273 } 1274 1275 return 1; 1276 1277 error: 1278 printf(" error!\n%s for '%s' hash node in '%s' image node\n", 1279 err_msg, fit_get_name(fit, noffset, NULL), 1280 fit_get_name(fit, image_noffset, NULL)); 1281 return 0; 1282 } 1283 1284 /** 1285 * fit_image_verify - verify data integrity 1286 * @fit: pointer to the FIT format image header 1287 * @image_noffset: component image node offset 1288 * 1289 * fit_image_verify() goes over component image hash nodes, 1290 * re-calculates each data hash and compares with the value stored in hash 1291 * node. 1292 * 1293 * returns: 1294 * 1, if all hashes are valid 1295 * 0, otherwise (or on error) 1296 */ 1297 int fit_image_verify(const void *fit, int image_noffset) 1298 { 1299 const void *data; 1300 size_t size; 1301 int noffset = 0; 1302 char *err_msg = ""; 1303 1304 /* Get image data and data length */ 1305 if (fit_image_get_data_and_size(fit, image_noffset, &data, &size)) { 1306 err_msg = "Can't get image data/size"; 1307 printf("error!\n%s for '%s' hash node in '%s' image node\n", 1308 err_msg, fit_get_name(fit, noffset, NULL), 1309 fit_get_name(fit, image_noffset, NULL)); 1310 return 0; 1311 } 1312 1313 return fit_image_verify_with_data(fit, image_noffset, data, size); 1314 } 1315 1316 /** 1317 * fit_all_image_verify - verify data integrity for all images 1318 * @fit: pointer to the FIT format image header 1319 * 1320 * fit_all_image_verify() goes over all images in the FIT and 1321 * for every images checks if all it's hashes are valid. 1322 * 1323 * returns: 1324 * 1, if all hashes of all images are valid 1325 * 0, otherwise (or on error) 1326 */ 1327 int fit_all_image_verify(const void *fit) 1328 { 1329 int images_noffset; 1330 int noffset; 1331 int ndepth; 1332 int count; 1333 1334 /* Find images parent node offset */ 1335 images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH); 1336 if (images_noffset < 0) { 1337 printf("Can't find images parent node '%s' (%s)\n", 1338 FIT_IMAGES_PATH, fdt_strerror(images_noffset)); 1339 return 0; 1340 } 1341 1342 /* Process all image subnodes, check hashes for each */ 1343 printf("## Checking hash(es) for FIT Image at %08lx ...\n", 1344 (ulong)fit); 1345 for (ndepth = 0, count = 0, 1346 noffset = fdt_next_node(fit, images_noffset, &ndepth); 1347 (noffset >= 0) && (ndepth > 0); 1348 noffset = fdt_next_node(fit, noffset, &ndepth)) { 1349 if (ndepth == 1) { 1350 /* 1351 * Direct child node of the images parent node, 1352 * i.e. component image node. 1353 */ 1354 printf(" Hash(es) for Image %u (%s): ", count, 1355 fit_get_name(fit, noffset, NULL)); 1356 count++; 1357 1358 if (!fit_image_verify(fit, noffset)) 1359 return 0; 1360 printf("\n"); 1361 } 1362 } 1363 return 1; 1364 } 1365 1366 /** 1367 * fit_image_check_os - check whether image node is of a given os type 1368 * @fit: pointer to the FIT format image header 1369 * @noffset: component image node offset 1370 * @os: requested image os 1371 * 1372 * fit_image_check_os() reads image os property and compares its numeric 1373 * id with the requested os. Comparison result is returned to the caller. 1374 * 1375 * returns: 1376 * 1 if image is of given os type 1377 * 0 otherwise (or on error) 1378 */ 1379 int fit_image_check_os(const void *fit, int noffset, uint8_t os) 1380 { 1381 uint8_t image_os; 1382 1383 if (fit_image_get_os(fit, noffset, &image_os)) 1384 return 0; 1385 return (os == image_os); 1386 } 1387 1388 /** 1389 * fit_image_check_arch - check whether image node is of a given arch 1390 * @fit: pointer to the FIT format image header 1391 * @noffset: component image node offset 1392 * @arch: requested imagearch 1393 * 1394 * fit_image_check_arch() reads image arch property and compares its numeric 1395 * id with the requested arch. Comparison result is returned to the caller. 1396 * 1397 * returns: 1398 * 1 if image is of given arch 1399 * 0 otherwise (or on error) 1400 */ 1401 int fit_image_check_arch(const void *fit, int noffset, uint8_t arch) 1402 { 1403 uint8_t image_arch; 1404 int aarch32_support = 0; 1405 1406 #ifdef CONFIG_ARM64_SUPPORT_AARCH32 1407 aarch32_support = 1; 1408 #endif 1409 1410 if (fit_image_get_arch(fit, noffset, &image_arch)) 1411 return 0; 1412 return (arch == image_arch) || 1413 (arch == IH_ARCH_I386 && image_arch == IH_ARCH_X86_64) || 1414 (arch == IH_ARCH_ARM64 && image_arch == IH_ARCH_ARM && 1415 aarch32_support); 1416 } 1417 1418 /** 1419 * fit_image_check_type - check whether image node is of a given type 1420 * @fit: pointer to the FIT format image header 1421 * @noffset: component image node offset 1422 * @type: requested image type 1423 * 1424 * fit_image_check_type() reads image type property and compares its numeric 1425 * id with the requested type. Comparison result is returned to the caller. 1426 * 1427 * returns: 1428 * 1 if image is of given type 1429 * 0 otherwise (or on error) 1430 */ 1431 int fit_image_check_type(const void *fit, int noffset, uint8_t type) 1432 { 1433 uint8_t image_type; 1434 1435 if (fit_image_get_type(fit, noffset, &image_type)) 1436 return 0; 1437 return (type == image_type); 1438 } 1439 1440 /** 1441 * fit_image_check_comp - check whether image node uses given compression 1442 * @fit: pointer to the FIT format image header 1443 * @noffset: component image node offset 1444 * @comp: requested image compression type 1445 * 1446 * fit_image_check_comp() reads image compression property and compares its 1447 * numeric id with the requested compression type. Comparison result is 1448 * returned to the caller. 1449 * 1450 * returns: 1451 * 1 if image uses requested compression 1452 * 0 otherwise (or on error) 1453 */ 1454 int fit_image_check_comp(const void *fit, int noffset, uint8_t comp) 1455 { 1456 uint8_t image_comp; 1457 1458 if (fit_image_get_comp(fit, noffset, &image_comp)) 1459 return 0; 1460 return (comp == image_comp); 1461 } 1462 1463 /** 1464 * fit_check_format - sanity check FIT image format 1465 * @fit: pointer to the FIT format image header 1466 * 1467 * fit_check_format() runs a basic sanity FIT image verification. 1468 * Routine checks for mandatory properties, nodes, etc. 1469 * 1470 * returns: 1471 * 1, on success 1472 * 0, on failure 1473 */ 1474 int fit_check_format(const void *fit) 1475 { 1476 /* A FIT image must be a valid FDT */ 1477 if (fdt_check_header(fit)) { 1478 debug("Wrong FIT format: not a flattened device tree\n"); 1479 return 0; 1480 } 1481 1482 /* mandatory / node 'description' property */ 1483 if (fdt_getprop(fit, 0, FIT_DESC_PROP, NULL) == NULL) { 1484 debug("Wrong FIT format: no description\n"); 1485 return 0; 1486 } 1487 1488 if (IMAGE_ENABLE_TIMESTAMP) { 1489 /* mandatory / node 'timestamp' property */ 1490 if (fdt_getprop(fit, 0, FIT_TIMESTAMP_PROP, NULL) == NULL) { 1491 debug("Wrong FIT format: no timestamp\n"); 1492 return 0; 1493 } 1494 } 1495 1496 /* mandatory subimages parent '/images' node */ 1497 if (fdt_path_offset(fit, FIT_IMAGES_PATH) < 0) { 1498 debug("Wrong FIT format: no images parent node\n"); 1499 return 0; 1500 } 1501 1502 return 1; 1503 } 1504 1505 1506 /** 1507 * fit_conf_find_compat 1508 * @fit: pointer to the FIT format image header 1509 * @fdt: pointer to the device tree to compare against 1510 * 1511 * fit_conf_find_compat() attempts to find the configuration whose fdt is the 1512 * most compatible with the passed in device tree. 1513 * 1514 * Example: 1515 * 1516 * / o image-tree 1517 * |-o images 1518 * | |-o fdt-1 1519 * | |-o fdt-2 1520 * | 1521 * |-o configurations 1522 * |-o config-1 1523 * | |-fdt = fdt-1 1524 * | 1525 * |-o config-2 1526 * |-fdt = fdt-2 1527 * 1528 * / o U-Boot fdt 1529 * |-compatible = "foo,bar", "bim,bam" 1530 * 1531 * / o kernel fdt1 1532 * |-compatible = "foo,bar", 1533 * 1534 * / o kernel fdt2 1535 * |-compatible = "bim,bam", "baz,biz" 1536 * 1537 * Configuration 1 would be picked because the first string in U-Boot's 1538 * compatible list, "foo,bar", matches a compatible string in the root of fdt1. 1539 * "bim,bam" in fdt2 matches the second string which isn't as good as fdt1. 1540 * 1541 * returns: 1542 * offset to the configuration to use if one was found 1543 * -1 otherwise 1544 */ 1545 int fit_conf_find_compat(const void *fit, const void *fdt) 1546 { 1547 int ndepth = 0; 1548 int noffset, confs_noffset, images_noffset; 1549 const void *fdt_compat; 1550 int fdt_compat_len; 1551 int best_match_offset = 0; 1552 int best_match_pos = 0; 1553 1554 confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH); 1555 images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH); 1556 if (confs_noffset < 0 || images_noffset < 0) { 1557 debug("Can't find configurations or images nodes.\n"); 1558 return -1; 1559 } 1560 1561 fdt_compat = fdt_getprop(fdt, 0, "compatible", &fdt_compat_len); 1562 if (!fdt_compat) { 1563 debug("Fdt for comparison has no \"compatible\" property.\n"); 1564 return -1; 1565 } 1566 1567 /* 1568 * Loop over the configurations in the FIT image. 1569 */ 1570 for (noffset = fdt_next_node(fit, confs_noffset, &ndepth); 1571 (noffset >= 0) && (ndepth > 0); 1572 noffset = fdt_next_node(fit, noffset, &ndepth)) { 1573 const void *kfdt; 1574 const char *kfdt_name; 1575 int kfdt_noffset; 1576 const char *cur_fdt_compat; 1577 int len; 1578 size_t size; 1579 int i; 1580 1581 if (ndepth > 1) 1582 continue; 1583 1584 kfdt_name = fdt_getprop(fit, noffset, "fdt", &len); 1585 if (!kfdt_name) { 1586 debug("No fdt property found.\n"); 1587 continue; 1588 } 1589 kfdt_noffset = fdt_subnode_offset(fit, images_noffset, 1590 kfdt_name); 1591 if (kfdt_noffset < 0) { 1592 debug("No image node named \"%s\" found.\n", 1593 kfdt_name); 1594 continue; 1595 } 1596 /* 1597 * Get a pointer to this configuration's fdt. 1598 */ 1599 if (fit_image_get_data(fit, kfdt_noffset, &kfdt, &size)) { 1600 debug("Failed to get fdt \"%s\".\n", kfdt_name); 1601 continue; 1602 } 1603 1604 len = fdt_compat_len; 1605 cur_fdt_compat = fdt_compat; 1606 /* 1607 * Look for a match for each U-Boot compatibility string in 1608 * turn in this configuration's fdt. 1609 */ 1610 for (i = 0; len > 0 && 1611 (!best_match_offset || best_match_pos > i); i++) { 1612 int cur_len = strlen(cur_fdt_compat) + 1; 1613 1614 if (!fdt_node_check_compatible(kfdt, 0, 1615 cur_fdt_compat)) { 1616 best_match_offset = noffset; 1617 best_match_pos = i; 1618 break; 1619 } 1620 len -= cur_len; 1621 cur_fdt_compat += cur_len; 1622 } 1623 } 1624 if (!best_match_offset) { 1625 debug("No match found.\n"); 1626 return -1; 1627 } 1628 1629 return best_match_offset; 1630 } 1631 1632 /** 1633 * fit_conf_get_node - get node offset for configuration of a given unit name 1634 * @fit: pointer to the FIT format image header 1635 * @conf_uname: configuration node unit name 1636 * 1637 * fit_conf_get_node() finds a configuration (within the '/configurations' 1638 * parent node) of a provided unit name. If configuration is found its node 1639 * offset is returned to the caller. 1640 * 1641 * When NULL is provided in second argument fit_conf_get_node() will search 1642 * for a default configuration node instead. Default configuration node unit 1643 * name is retrieved from FIT_DEFAULT_PROP property of the '/configurations' 1644 * node. 1645 * 1646 * returns: 1647 * configuration node offset when found (>=0) 1648 * negative number on failure (FDT_ERR_* code) 1649 */ 1650 int fit_conf_get_node(const void *fit, const char *conf_uname) 1651 { 1652 int noffset, confs_noffset; 1653 int len; 1654 const char *s; 1655 char *conf_uname_copy = NULL; 1656 1657 confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH); 1658 if (confs_noffset < 0) { 1659 debug("Can't find configurations parent node '%s' (%s)\n", 1660 FIT_CONFS_PATH, fdt_strerror(confs_noffset)); 1661 return confs_noffset; 1662 } 1663 1664 if (conf_uname == NULL) { 1665 /* get configuration unit name from the default property */ 1666 debug("No configuration specified, trying default...\n"); 1667 conf_uname = (char *)fdt_getprop(fit, confs_noffset, 1668 FIT_DEFAULT_PROP, &len); 1669 if (conf_uname == NULL) { 1670 fit_get_debug(fit, confs_noffset, FIT_DEFAULT_PROP, 1671 len); 1672 return len; 1673 } 1674 debug("Found default configuration: '%s'\n", conf_uname); 1675 } 1676 1677 s = strchr(conf_uname, '#'); 1678 if (s) { 1679 len = s - conf_uname; 1680 conf_uname_copy = malloc(len + 1); 1681 if (!conf_uname_copy) { 1682 debug("Can't allocate uname copy: '%s'\n", 1683 conf_uname); 1684 return -ENOMEM; 1685 } 1686 memcpy(conf_uname_copy, conf_uname, len); 1687 conf_uname_copy[len] = '\0'; 1688 conf_uname = conf_uname_copy; 1689 } 1690 1691 noffset = fdt_subnode_offset(fit, confs_noffset, conf_uname); 1692 if (noffset < 0) { 1693 debug("Can't get node offset for configuration unit name: '%s' (%s)\n", 1694 conf_uname, fdt_strerror(noffset)); 1695 } 1696 1697 if (conf_uname_copy) 1698 free(conf_uname_copy); 1699 1700 return noffset; 1701 } 1702 1703 int fit_conf_get_prop_node_count(const void *fit, int noffset, 1704 const char *prop_name) 1705 { 1706 return fdt_stringlist_count(fit, noffset, prop_name); 1707 } 1708 1709 int fit_conf_get_prop_node_index(const void *fit, int noffset, 1710 const char *prop_name, int index) 1711 { 1712 const char *uname; 1713 int len; 1714 1715 /* get kernel image unit name from configuration kernel property */ 1716 uname = fdt_stringlist_get(fit, noffset, prop_name, index, &len); 1717 if (uname == NULL) 1718 return len; 1719 1720 return fit_image_get_node(fit, uname); 1721 } 1722 1723 int fit_conf_get_prop_node(const void *fit, int noffset, 1724 const char *prop_name) 1725 { 1726 return fit_conf_get_prop_node_index(fit, noffset, prop_name, 0); 1727 } 1728 1729 static int fit_image_select(const void *fit, int rd_noffset, int verify) 1730 { 1731 fit_image_print(fit, rd_noffset, " "); 1732 1733 if (verify) { 1734 puts(" Verifying Hash Integrity ... "); 1735 if (!fit_image_verify(fit, rd_noffset)) { 1736 puts("Bad Data Hash\n"); 1737 return -EACCES; 1738 } 1739 puts("OK\n"); 1740 } 1741 1742 return 0; 1743 } 1744 1745 int fit_get_node_from_config(bootm_headers_t *images, const char *prop_name, 1746 ulong addr) 1747 { 1748 int cfg_noffset; 1749 void *fit_hdr; 1750 int noffset; 1751 1752 debug("* %s: using config '%s' from image at 0x%08lx\n", 1753 prop_name, images->fit_uname_cfg, addr); 1754 1755 /* Check whether configuration has this property defined */ 1756 fit_hdr = map_sysmem(addr, 0); 1757 cfg_noffset = fit_conf_get_node(fit_hdr, images->fit_uname_cfg); 1758 if (cfg_noffset < 0) { 1759 debug("* %s: no such config\n", prop_name); 1760 return -EINVAL; 1761 } 1762 1763 noffset = fit_conf_get_prop_node(fit_hdr, cfg_noffset, prop_name); 1764 if (noffset < 0) { 1765 debug("* %s: no '%s' in config\n", prop_name, prop_name); 1766 return -ENOENT; 1767 } 1768 1769 return noffset; 1770 } 1771 1772 /** 1773 * fit_get_image_type_property() - get property name for IH_TYPE_... 1774 * 1775 * @return the properly name where we expect to find the image in the 1776 * config node 1777 */ 1778 static const char *fit_get_image_type_property(int type) 1779 { 1780 /* 1781 * This is sort-of available in the uimage_type[] table in image.c 1782 * but we don't have access to the short name, and "fdt" is different 1783 * anyway. So let's just keep it here. 1784 */ 1785 switch (type) { 1786 case IH_TYPE_FLATDT: 1787 return FIT_FDT_PROP; 1788 case IH_TYPE_KERNEL: 1789 return FIT_KERNEL_PROP; 1790 case IH_TYPE_RAMDISK: 1791 return FIT_RAMDISK_PROP; 1792 case IH_TYPE_X86_SETUP: 1793 return FIT_SETUP_PROP; 1794 case IH_TYPE_LOADABLE: 1795 return FIT_LOADABLE_PROP; 1796 case IH_TYPE_FPGA: 1797 return FIT_FPGA_PROP; 1798 case IH_TYPE_STANDALONE: 1799 return FIT_STANDALONE_PROP; 1800 } 1801 1802 return "unknown"; 1803 } 1804 1805 int fit_image_load(bootm_headers_t *images, ulong addr, 1806 const char **fit_unamep, const char **fit_uname_configp, 1807 int arch, int image_type, int bootstage_id, 1808 enum fit_load_op load_op, ulong *datap, ulong *lenp) 1809 { 1810 int cfg_noffset, noffset; 1811 const char *fit_uname; 1812 const char *fit_uname_config; 1813 const char *fit_base_uname_config; 1814 const void *fit; 1815 const void *buf; 1816 size_t size; 1817 int type_ok, os_ok; 1818 ulong load, data, len; 1819 uint8_t os; 1820 #ifndef USE_HOSTCC 1821 uint8_t os_arch; 1822 #endif 1823 const char *prop_name; 1824 int ret; 1825 1826 fit = map_sysmem(addr, 0); 1827 fit_uname = fit_unamep ? *fit_unamep : NULL; 1828 fit_uname_config = fit_uname_configp ? *fit_uname_configp : NULL; 1829 fit_base_uname_config = NULL; 1830 prop_name = fit_get_image_type_property(image_type); 1831 printf("## Loading %s from FIT Image at %08lx ...\n", prop_name, addr); 1832 1833 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_FORMAT); 1834 if (!fit_check_format(fit)) { 1835 printf("Bad FIT %s image format!\n", prop_name); 1836 bootstage_error(bootstage_id + BOOTSTAGE_SUB_FORMAT); 1837 return -ENOEXEC; 1838 } 1839 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_FORMAT_OK); 1840 if (fit_uname) { 1841 /* get FIT component image node offset */ 1842 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_UNIT_NAME); 1843 noffset = fit_image_get_node(fit, fit_uname); 1844 } else { 1845 /* 1846 * no image node unit name, try to get config 1847 * node first. If config unit node name is NULL 1848 * fit_conf_get_node() will try to find default config node 1849 */ 1850 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_NO_UNIT_NAME); 1851 if (IMAGE_ENABLE_BEST_MATCH && !fit_uname_config) { 1852 cfg_noffset = fit_conf_find_compat(fit, gd_fdt_blob()); 1853 } else { 1854 cfg_noffset = fit_conf_get_node(fit, 1855 fit_uname_config); 1856 } 1857 if (cfg_noffset < 0) { 1858 puts("Could not find configuration node\n"); 1859 bootstage_error(bootstage_id + 1860 BOOTSTAGE_SUB_NO_UNIT_NAME); 1861 return -ENOENT; 1862 } 1863 1864 fit_base_uname_config = fdt_get_name(fit, cfg_noffset, NULL); 1865 printf(" Using '%s' configuration\n", fit_base_uname_config); 1866 /* Remember this config */ 1867 if (image_type == IH_TYPE_KERNEL) 1868 images->fit_uname_cfg = fit_base_uname_config; 1869 1870 if (IMAGE_ENABLE_VERIFY && images->verify) { 1871 puts(" Verifying Hash Integrity ... "); 1872 if (fit_config_verify(fit, cfg_noffset)) { 1873 puts("Bad Data Hash\n"); 1874 bootstage_error(bootstage_id + 1875 BOOTSTAGE_SUB_HASH); 1876 return -EACCES; 1877 } 1878 puts("OK\n"); 1879 } 1880 1881 bootstage_mark(BOOTSTAGE_ID_FIT_CONFIG); 1882 1883 noffset = fit_conf_get_prop_node(fit, cfg_noffset, 1884 prop_name); 1885 fit_uname = fit_get_name(fit, noffset, NULL); 1886 } 1887 if (noffset < 0) { 1888 printf("Could not find subimage node type '%s'\n", prop_name); 1889 bootstage_error(bootstage_id + BOOTSTAGE_SUB_SUBNODE); 1890 return -ENOENT; 1891 } 1892 1893 printf(" Trying '%s' %s subimage\n", fit_uname, prop_name); 1894 1895 ret = fit_image_select(fit, noffset, images->verify); 1896 if (ret) { 1897 bootstage_error(bootstage_id + BOOTSTAGE_SUB_HASH); 1898 return ret; 1899 } 1900 1901 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_CHECK_ARCH); 1902 #if !defined(USE_HOSTCC) && !defined(CONFIG_SANDBOX) 1903 if (!fit_image_check_target_arch(fit, noffset)) { 1904 puts("Unsupported Architecture\n"); 1905 bootstage_error(bootstage_id + BOOTSTAGE_SUB_CHECK_ARCH); 1906 return -ENOEXEC; 1907 } 1908 #endif 1909 1910 #ifndef USE_HOSTCC 1911 fit_image_get_arch(fit, noffset, &os_arch); 1912 images->os.arch = os_arch; 1913 #endif 1914 1915 if (image_type == IH_TYPE_FLATDT && 1916 !fit_image_check_comp(fit, noffset, IH_COMP_NONE)) { 1917 puts("FDT image is compressed"); 1918 return -EPROTONOSUPPORT; 1919 } 1920 1921 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_CHECK_ALL); 1922 type_ok = fit_image_check_type(fit, noffset, image_type) || 1923 fit_image_check_type(fit, noffset, IH_TYPE_FIRMWARE) || 1924 (image_type == IH_TYPE_KERNEL && 1925 fit_image_check_type(fit, noffset, IH_TYPE_KERNEL_NOLOAD)); 1926 1927 os_ok = image_type == IH_TYPE_FLATDT || 1928 image_type == IH_TYPE_FPGA || 1929 fit_image_check_os(fit, noffset, IH_OS_LINUX) || 1930 fit_image_check_os(fit, noffset, IH_OS_U_BOOT) || 1931 fit_image_check_os(fit, noffset, IH_OS_OPENRTOS); 1932 1933 /* 1934 * If either of the checks fail, we should report an error, but 1935 * if the image type is coming from the "loadables" field, we 1936 * don't care what it is 1937 */ 1938 if ((!type_ok || !os_ok) && image_type != IH_TYPE_LOADABLE) { 1939 fit_image_get_os(fit, noffset, &os); 1940 printf("No %s %s %s Image\n", 1941 genimg_get_os_name(os), 1942 genimg_get_arch_name(arch), 1943 genimg_get_type_name(image_type)); 1944 bootstage_error(bootstage_id + BOOTSTAGE_SUB_CHECK_ALL); 1945 return -EIO; 1946 } 1947 1948 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_CHECK_ALL_OK); 1949 1950 /* get image data address and length */ 1951 if (fit_image_get_data_and_size(fit, noffset, &buf, &size)) { 1952 printf("Could not find %s subimage data!\n", prop_name); 1953 bootstage_error(bootstage_id + BOOTSTAGE_SUB_GET_DATA); 1954 return -ENOENT; 1955 } 1956 1957 #if !defined(USE_HOSTCC) && defined(CONFIG_FIT_IMAGE_POST_PROCESS) 1958 /* perform any post-processing on the image data */ 1959 board_fit_image_post_process((void **)&buf, &size); 1960 #endif 1961 1962 len = (ulong)size; 1963 1964 /* verify that image data is a proper FDT blob */ 1965 if (image_type == IH_TYPE_FLATDT && fdt_check_header(buf)) { 1966 puts("Subimage data is not a FDT"); 1967 return -ENOEXEC; 1968 } 1969 1970 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_GET_DATA_OK); 1971 1972 /* 1973 * Work-around for eldk-4.2 which gives this warning if we try to 1974 * cast in the unmap_sysmem() call: 1975 * warning: initialization discards qualifiers from pointer target type 1976 */ 1977 { 1978 void *vbuf = (void *)buf; 1979 1980 data = map_to_sysmem(vbuf); 1981 } 1982 1983 if (load_op == FIT_LOAD_IGNORED) { 1984 /* Don't load */ 1985 } else if (fit_image_get_load(fit, noffset, &load)) { 1986 if (load_op == FIT_LOAD_REQUIRED) { 1987 printf("Can't get %s subimage load address!\n", 1988 prop_name); 1989 bootstage_error(bootstage_id + BOOTSTAGE_SUB_LOAD); 1990 return -EBADF; 1991 } 1992 } else if (load_op != FIT_LOAD_OPTIONAL_NON_ZERO || load) { 1993 ulong image_start, image_end; 1994 ulong load_end; 1995 void *dst; 1996 1997 /* 1998 * move image data to the load address, 1999 * make sure we don't overwrite initial image 2000 */ 2001 image_start = addr; 2002 image_end = addr + fit_get_size(fit); 2003 2004 load_end = load + len; 2005 if (image_type != IH_TYPE_KERNEL && 2006 load < image_end && load_end > image_start) { 2007 printf("Error: %s overwritten\n", prop_name); 2008 return -EXDEV; 2009 } 2010 2011 printf(" Loading %s from 0x%08lx to 0x%08lx\n", 2012 prop_name, data, load); 2013 2014 dst = map_sysmem(load, len); 2015 memmove(dst, buf, len); 2016 data = load; 2017 } 2018 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_LOAD); 2019 2020 *datap = data; 2021 *lenp = len; 2022 if (fit_unamep) 2023 *fit_unamep = (char *)fit_uname; 2024 if (fit_uname_configp) 2025 *fit_uname_configp = (char *)(fit_uname_config ? : 2026 fit_base_uname_config); 2027 2028 return noffset; 2029 } 2030 2031 int boot_get_setup_fit(bootm_headers_t *images, uint8_t arch, 2032 ulong *setup_start, ulong *setup_len) 2033 { 2034 int noffset; 2035 ulong addr; 2036 ulong len; 2037 int ret; 2038 2039 addr = map_to_sysmem(images->fit_hdr_os); 2040 noffset = fit_get_node_from_config(images, FIT_SETUP_PROP, addr); 2041 if (noffset < 0) 2042 return noffset; 2043 2044 ret = fit_image_load(images, addr, NULL, NULL, arch, 2045 IH_TYPE_X86_SETUP, BOOTSTAGE_ID_FIT_SETUP_START, 2046 FIT_LOAD_REQUIRED, setup_start, &len); 2047 2048 return ret; 2049 } 2050 2051 #ifndef USE_HOSTCC 2052 int boot_get_fdt_fit(bootm_headers_t *images, ulong addr, 2053 const char **fit_unamep, const char **fit_uname_configp, 2054 int arch, ulong *datap, ulong *lenp) 2055 { 2056 int fdt_noffset, cfg_noffset, count; 2057 const void *fit; 2058 const char *fit_uname = NULL; 2059 const char *fit_uname_config = NULL; 2060 char *fit_uname_config_copy = NULL; 2061 char *next_config = NULL; 2062 ulong load, len; 2063 #ifdef CONFIG_OF_LIBFDT_OVERLAY 2064 ulong image_start, image_end; 2065 ulong ovload, ovlen; 2066 const char *uconfig; 2067 const char *uname; 2068 void *base, *ov; 2069 int i, err, noffset, ov_noffset; 2070 #endif 2071 2072 fit_uname = fit_unamep ? *fit_unamep : NULL; 2073 2074 if (fit_uname_configp && *fit_uname_configp) { 2075 fit_uname_config_copy = strdup(*fit_uname_configp); 2076 if (!fit_uname_config_copy) 2077 return -ENOMEM; 2078 2079 next_config = strchr(fit_uname_config_copy, '#'); 2080 if (next_config) 2081 *next_config++ = '\0'; 2082 if (next_config - 1 > fit_uname_config_copy) 2083 fit_uname_config = fit_uname_config_copy; 2084 } 2085 2086 fdt_noffset = fit_image_load(images, 2087 addr, &fit_uname, &fit_uname_config, 2088 arch, IH_TYPE_FLATDT, 2089 BOOTSTAGE_ID_FIT_FDT_START, 2090 FIT_LOAD_OPTIONAL, &load, &len); 2091 2092 if (fdt_noffset < 0) 2093 goto out; 2094 2095 debug("fit_uname=%s, fit_uname_config=%s\n", 2096 fit_uname ? fit_uname : "<NULL>", 2097 fit_uname_config ? fit_uname_config : "<NULL>"); 2098 2099 fit = map_sysmem(addr, 0); 2100 2101 cfg_noffset = fit_conf_get_node(fit, fit_uname_config); 2102 2103 /* single blob, or error just return as well */ 2104 count = fit_conf_get_prop_node_count(fit, cfg_noffset, FIT_FDT_PROP); 2105 if (count <= 1 && !next_config) 2106 goto out; 2107 2108 /* we need to apply overlays */ 2109 2110 #ifdef CONFIG_OF_LIBFDT_OVERLAY 2111 image_start = addr; 2112 image_end = addr + fit_get_size(fit); 2113 /* verify that relocation took place by load address not being in fit */ 2114 if (load >= image_start && load < image_end) { 2115 /* check is simplified; fit load checks for overlaps */ 2116 printf("Overlayed FDT requires relocation\n"); 2117 fdt_noffset = -EBADF; 2118 goto out; 2119 } 2120 2121 base = map_sysmem(load, len); 2122 2123 /* apply extra configs in FIT first, followed by args */ 2124 for (i = 1; ; i++) { 2125 if (i < count) { 2126 noffset = fit_conf_get_prop_node_index(fit, cfg_noffset, 2127 FIT_FDT_PROP, i); 2128 uname = fit_get_name(fit, noffset, NULL); 2129 uconfig = NULL; 2130 } else { 2131 if (!next_config) 2132 break; 2133 uconfig = next_config; 2134 next_config = strchr(next_config, '#'); 2135 if (next_config) 2136 *next_config++ = '\0'; 2137 uname = NULL; 2138 } 2139 2140 debug("%d: using uname=%s uconfig=%s\n", i, uname, uconfig); 2141 2142 ov_noffset = fit_image_load(images, 2143 addr, &uname, &uconfig, 2144 arch, IH_TYPE_FLATDT, 2145 BOOTSTAGE_ID_FIT_FDT_START, 2146 FIT_LOAD_REQUIRED, &ovload, &ovlen); 2147 if (ov_noffset < 0) { 2148 printf("load of %s failed\n", uname); 2149 continue; 2150 } 2151 debug("%s loaded at 0x%08lx len=0x%08lx\n", 2152 uname, ovload, ovlen); 2153 ov = map_sysmem(ovload, ovlen); 2154 2155 base = map_sysmem(load, len + ovlen); 2156 err = fdt_open_into(base, base, len + ovlen); 2157 if (err < 0) { 2158 printf("failed on fdt_open_into\n"); 2159 fdt_noffset = err; 2160 goto out; 2161 } 2162 /* the verbose method prints out messages on error */ 2163 err = fdt_overlay_apply_verbose(base, ov); 2164 if (err < 0) { 2165 fdt_noffset = err; 2166 goto out; 2167 } 2168 fdt_pack(base); 2169 len = fdt_totalsize(base); 2170 } 2171 #else 2172 printf("config with overlays but CONFIG_OF_LIBFDT_OVERLAY not set\n"); 2173 fdt_noffset = -EBADF; 2174 #endif 2175 2176 out: 2177 if (datap) 2178 *datap = load; 2179 if (lenp) 2180 *lenp = len; 2181 if (fit_unamep) 2182 *fit_unamep = fit_uname; 2183 if (fit_uname_configp) 2184 *fit_uname_configp = fit_uname_config; 2185 2186 if (fit_uname_config_copy) 2187 free(fit_uname_config_copy); 2188 return fdt_noffset; 2189 } 2190 #endif 2191