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) follwed 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, ×tamp); 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 properies 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, ×tamp)) 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 properies 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 properies 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, ×tamp); 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 ret = fit_image_get_load(fit, image_noffset, &load); 427 printf("%s Load Address: ", p); 428 if (ret) 429 printf("unavailable\n"); 430 else 431 printf("0x%08lx\n", load); 432 } 433 434 if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) || 435 (type == IH_TYPE_RAMDISK)) { 436 fit_image_get_entry(fit, image_noffset, &entry); 437 printf("%s Entry Point: ", p); 438 if (ret) 439 printf("unavailable\n"); 440 else 441 printf("0x%08lx\n", entry); 442 } 443 444 /* Process all hash subnodes of the component image node */ 445 for (ndepth = 0, noffset = fdt_next_node(fit, image_noffset, &ndepth); 446 (noffset >= 0) && (ndepth > 0); 447 noffset = fdt_next_node(fit, noffset, &ndepth)) { 448 if (ndepth == 1) { 449 /* Direct child node of the component image node */ 450 fit_image_print_verification_data(fit, noffset, p); 451 } 452 } 453 } 454 455 #endif /* !defined(CONFIG_SPL_BUILD) || defined(CONFIG_FIT_SPL_PRINT) */ 456 457 /** 458 * fit_get_desc - get node description property 459 * @fit: pointer to the FIT format image header 460 * @noffset: node offset 461 * @desc: double pointer to the char, will hold pointer to the descrption 462 * 463 * fit_get_desc() reads description property from a given node, if 464 * description is found pointer to it is returened in third call argument. 465 * 466 * returns: 467 * 0, on success 468 * -1, on failure 469 */ 470 int fit_get_desc(const void *fit, int noffset, char **desc) 471 { 472 int len; 473 474 *desc = (char *)fdt_getprop(fit, noffset, FIT_DESC_PROP, &len); 475 if (*desc == NULL) { 476 fit_get_debug(fit, noffset, FIT_DESC_PROP, len); 477 return -1; 478 } 479 480 return 0; 481 } 482 483 /** 484 * fit_get_timestamp - get node timestamp property 485 * @fit: pointer to the FIT format image header 486 * @noffset: node offset 487 * @timestamp: pointer to the time_t, will hold read timestamp 488 * 489 * fit_get_timestamp() reads timestamp poperty from given node, if timestamp 490 * is found and has a correct size its value is retured in third call 491 * argument. 492 * 493 * returns: 494 * 0, on success 495 * -1, on property read failure 496 * -2, on wrong timestamp size 497 */ 498 int fit_get_timestamp(const void *fit, int noffset, time_t *timestamp) 499 { 500 int len; 501 const void *data; 502 503 data = fdt_getprop(fit, noffset, FIT_TIMESTAMP_PROP, &len); 504 if (data == NULL) { 505 fit_get_debug(fit, noffset, FIT_TIMESTAMP_PROP, len); 506 return -1; 507 } 508 if (len != sizeof(uint32_t)) { 509 debug("FIT timestamp with incorrect size of (%u)\n", len); 510 return -2; 511 } 512 513 *timestamp = uimage_to_cpu(*((uint32_t *)data)); 514 return 0; 515 } 516 517 /** 518 * fit_image_get_node - get node offset for component image of a given unit name 519 * @fit: pointer to the FIT format image header 520 * @image_uname: component image node unit name 521 * 522 * fit_image_get_node() finds a component image (withing the '/images' 523 * node) of a provided unit name. If image is found its node offset is 524 * returned to the caller. 525 * 526 * returns: 527 * image node offset when found (>=0) 528 * negative number on failure (FDT_ERR_* code) 529 */ 530 int fit_image_get_node(const void *fit, const char *image_uname) 531 { 532 int noffset, images_noffset; 533 534 images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH); 535 if (images_noffset < 0) { 536 debug("Can't find images parent node '%s' (%s)\n", 537 FIT_IMAGES_PATH, fdt_strerror(images_noffset)); 538 return images_noffset; 539 } 540 541 noffset = fdt_subnode_offset(fit, images_noffset, image_uname); 542 if (noffset < 0) { 543 debug("Can't get node offset for image unit name: '%s' (%s)\n", 544 image_uname, fdt_strerror(noffset)); 545 } 546 547 return noffset; 548 } 549 550 /** 551 * fit_image_get_os - get os id for a given component image node 552 * @fit: pointer to the FIT format image header 553 * @noffset: component image node offset 554 * @os: pointer to the uint8_t, will hold os numeric id 555 * 556 * fit_image_get_os() finds os property in a given component image node. 557 * If the property is found, its (string) value is translated to the numeric 558 * id which is returned to the caller. 559 * 560 * returns: 561 * 0, on success 562 * -1, on failure 563 */ 564 int fit_image_get_os(const void *fit, int noffset, uint8_t *os) 565 { 566 int len; 567 const void *data; 568 569 /* Get OS name from property data */ 570 data = fdt_getprop(fit, noffset, FIT_OS_PROP, &len); 571 if (data == NULL) { 572 fit_get_debug(fit, noffset, FIT_OS_PROP, len); 573 *os = -1; 574 return -1; 575 } 576 577 /* Translate OS name to id */ 578 *os = genimg_get_os_id(data); 579 return 0; 580 } 581 582 /** 583 * fit_image_get_arch - get arch id for a given component image node 584 * @fit: pointer to the FIT format image header 585 * @noffset: component image node offset 586 * @arch: pointer to the uint8_t, will hold arch numeric id 587 * 588 * fit_image_get_arch() finds arch property in a given component image node. 589 * If the property is found, its (string) value is translated to the numeric 590 * id which is returned to the caller. 591 * 592 * returns: 593 * 0, on success 594 * -1, on failure 595 */ 596 int fit_image_get_arch(const void *fit, int noffset, uint8_t *arch) 597 { 598 int len; 599 const void *data; 600 601 /* Get architecture name from property data */ 602 data = fdt_getprop(fit, noffset, FIT_ARCH_PROP, &len); 603 if (data == NULL) { 604 fit_get_debug(fit, noffset, FIT_ARCH_PROP, len); 605 *arch = -1; 606 return -1; 607 } 608 609 /* Translate architecture name to id */ 610 *arch = genimg_get_arch_id(data); 611 return 0; 612 } 613 614 /** 615 * fit_image_get_type - get type id for a given component image node 616 * @fit: pointer to the FIT format image header 617 * @noffset: component image node offset 618 * @type: pointer to the uint8_t, will hold type numeric id 619 * 620 * fit_image_get_type() finds type property in a given component image node. 621 * If the property is found, its (string) value is translated to the numeric 622 * id which is returned to the caller. 623 * 624 * returns: 625 * 0, on success 626 * -1, on failure 627 */ 628 int fit_image_get_type(const void *fit, int noffset, uint8_t *type) 629 { 630 int len; 631 const void *data; 632 633 /* Get image type name from property data */ 634 data = fdt_getprop(fit, noffset, FIT_TYPE_PROP, &len); 635 if (data == NULL) { 636 fit_get_debug(fit, noffset, FIT_TYPE_PROP, len); 637 *type = -1; 638 return -1; 639 } 640 641 /* Translate image type name to id */ 642 *type = genimg_get_type_id(data); 643 return 0; 644 } 645 646 /** 647 * fit_image_get_comp - get comp id for a given component image node 648 * @fit: pointer to the FIT format image header 649 * @noffset: component image node offset 650 * @comp: pointer to the uint8_t, will hold comp numeric id 651 * 652 * fit_image_get_comp() finds comp property in a given component image node. 653 * If the property is found, its (string) value is translated to the numeric 654 * id which is returned to the caller. 655 * 656 * returns: 657 * 0, on success 658 * -1, on failure 659 */ 660 int fit_image_get_comp(const void *fit, int noffset, uint8_t *comp) 661 { 662 int len; 663 const void *data; 664 665 /* Get compression name from property data */ 666 data = fdt_getprop(fit, noffset, FIT_COMP_PROP, &len); 667 if (data == NULL) { 668 fit_get_debug(fit, noffset, FIT_COMP_PROP, len); 669 *comp = -1; 670 return -1; 671 } 672 673 /* Translate compression name to id */ 674 *comp = genimg_get_comp_id(data); 675 return 0; 676 } 677 678 /** 679 * fit_image_get_load() - get load addr property for given component image node 680 * @fit: pointer to the FIT format image header 681 * @noffset: component image node offset 682 * @load: pointer to the uint32_t, will hold load address 683 * 684 * fit_image_get_load() finds load address property in a given component 685 * image node. If the property is found, its value is returned to the caller. 686 * 687 * returns: 688 * 0, on success 689 * -1, on failure 690 */ 691 int fit_image_get_load(const void *fit, int noffset, ulong *load) 692 { 693 int len; 694 const uint32_t *data; 695 696 data = fdt_getprop(fit, noffset, FIT_LOAD_PROP, &len); 697 if (data == NULL) { 698 fit_get_debug(fit, noffset, FIT_LOAD_PROP, len); 699 return -1; 700 } 701 702 *load = uimage_to_cpu(*data); 703 return 0; 704 } 705 706 /** 707 * fit_image_get_entry() - get entry point address property 708 * @fit: pointer to the FIT format image header 709 * @noffset: component image node offset 710 * @entry: pointer to the uint32_t, will hold entry point address 711 * 712 * This gets the entry point address property for a given component image 713 * node. 714 * 715 * fit_image_get_entry() finds entry point address property in a given 716 * component image node. If the property is found, its value is returned 717 * to the caller. 718 * 719 * returns: 720 * 0, on success 721 * -1, on failure 722 */ 723 int fit_image_get_entry(const void *fit, int noffset, ulong *entry) 724 { 725 int len; 726 const uint32_t *data; 727 728 data = fdt_getprop(fit, noffset, FIT_ENTRY_PROP, &len); 729 if (data == NULL) { 730 fit_get_debug(fit, noffset, FIT_ENTRY_PROP, len); 731 return -1; 732 } 733 734 *entry = uimage_to_cpu(*data); 735 return 0; 736 } 737 738 /** 739 * fit_image_get_data - get data property and its size for a given component image node 740 * @fit: pointer to the FIT format image header 741 * @noffset: component image node offset 742 * @data: double pointer to void, will hold data property's data address 743 * @size: pointer to size_t, will hold data property's data size 744 * 745 * fit_image_get_data() finds data property in a given component image node. 746 * If the property is found its data start address and size are returned to 747 * the caller. 748 * 749 * returns: 750 * 0, on success 751 * -1, on failure 752 */ 753 int fit_image_get_data(const void *fit, int noffset, 754 const void **data, size_t *size) 755 { 756 int len; 757 758 *data = fdt_getprop(fit, noffset, FIT_DATA_PROP, &len); 759 if (*data == NULL) { 760 fit_get_debug(fit, noffset, FIT_DATA_PROP, len); 761 *size = 0; 762 return -1; 763 } 764 765 *size = len; 766 return 0; 767 } 768 769 /** 770 * fit_image_hash_get_algo - get hash algorithm name 771 * @fit: pointer to the FIT format image header 772 * @noffset: hash node offset 773 * @algo: double pointer to char, will hold pointer to the algorithm name 774 * 775 * fit_image_hash_get_algo() finds hash algorithm property in a given hash node. 776 * If the property is found its data start address is returned to the caller. 777 * 778 * returns: 779 * 0, on success 780 * -1, on failure 781 */ 782 int fit_image_hash_get_algo(const void *fit, int noffset, char **algo) 783 { 784 int len; 785 786 *algo = (char *)fdt_getprop(fit, noffset, FIT_ALGO_PROP, &len); 787 if (*algo == NULL) { 788 fit_get_debug(fit, noffset, FIT_ALGO_PROP, len); 789 return -1; 790 } 791 792 return 0; 793 } 794 795 /** 796 * fit_image_hash_get_value - get hash value and length 797 * @fit: pointer to the FIT format image header 798 * @noffset: hash node offset 799 * @value: double pointer to uint8_t, will hold address of a hash value data 800 * @value_len: pointer to an int, will hold hash data length 801 * 802 * fit_image_hash_get_value() finds hash value property in a given hash node. 803 * If the property is found its data start address and size are returned to 804 * the caller. 805 * 806 * returns: 807 * 0, on success 808 * -1, on failure 809 */ 810 int fit_image_hash_get_value(const void *fit, int noffset, uint8_t **value, 811 int *value_len) 812 { 813 int len; 814 815 *value = (uint8_t *)fdt_getprop(fit, noffset, FIT_VALUE_PROP, &len); 816 if (*value == NULL) { 817 fit_get_debug(fit, noffset, FIT_VALUE_PROP, len); 818 *value_len = 0; 819 return -1; 820 } 821 822 *value_len = len; 823 return 0; 824 } 825 826 /** 827 * fit_image_hash_get_ignore - get hash ignore flag 828 * @fit: pointer to the FIT format image header 829 * @noffset: hash node offset 830 * @ignore: pointer to an int, will hold hash ignore flag 831 * 832 * fit_image_hash_get_ignore() finds hash ignore property in a given hash node. 833 * If the property is found and non-zero, the hash algorithm is not verified by 834 * u-boot automatically. 835 * 836 * returns: 837 * 0, on ignore not found 838 * value, on ignore found 839 */ 840 static int fit_image_hash_get_ignore(const void *fit, int noffset, int *ignore) 841 { 842 int len; 843 int *value; 844 845 value = (int *)fdt_getprop(fit, noffset, FIT_IGNORE_PROP, &len); 846 if (value == NULL || len != sizeof(int)) 847 *ignore = 0; 848 else 849 *ignore = *value; 850 851 return 0; 852 } 853 854 ulong fit_get_end(const void *fit) 855 { 856 return map_to_sysmem((void *)(fit + fdt_totalsize(fit))); 857 } 858 859 /** 860 * fit_set_timestamp - set node timestamp property 861 * @fit: pointer to the FIT format image header 862 * @noffset: node offset 863 * @timestamp: timestamp value to be set 864 * 865 * fit_set_timestamp() attempts to set timestamp property in the requested 866 * node and returns operation status to the caller. 867 * 868 * returns: 869 * 0, on success 870 * -ENOSPC if no space in device tree, -1 for other error 871 */ 872 int fit_set_timestamp(void *fit, int noffset, time_t timestamp) 873 { 874 uint32_t t; 875 int ret; 876 877 t = cpu_to_uimage(timestamp); 878 ret = fdt_setprop(fit, noffset, FIT_TIMESTAMP_PROP, &t, 879 sizeof(uint32_t)); 880 if (ret) { 881 printf("Can't set '%s' property for '%s' node (%s)\n", 882 FIT_TIMESTAMP_PROP, fit_get_name(fit, noffset, NULL), 883 fdt_strerror(ret)); 884 return ret == -FDT_ERR_NOSPACE ? -ENOSPC : -1; 885 } 886 887 return 0; 888 } 889 890 /** 891 * calculate_hash - calculate and return hash for provided input data 892 * @data: pointer to the input data 893 * @data_len: data length 894 * @algo: requested hash algorithm 895 * @value: pointer to the char, will hold hash value data (caller must 896 * allocate enough free space) 897 * value_len: length of the calculated hash 898 * 899 * calculate_hash() computes input data hash according to the requested 900 * algorithm. 901 * Resulting hash value is placed in caller provided 'value' buffer, length 902 * of the calculated hash is returned via value_len pointer argument. 903 * 904 * returns: 905 * 0, on success 906 * -1, when algo is unsupported 907 */ 908 int calculate_hash(const void *data, int data_len, const char *algo, 909 uint8_t *value, int *value_len) 910 { 911 if (IMAGE_ENABLE_CRC32 && strcmp(algo, "crc32") == 0) { 912 *((uint32_t *)value) = crc32_wd(0, data, data_len, 913 CHUNKSZ_CRC32); 914 *((uint32_t *)value) = cpu_to_uimage(*((uint32_t *)value)); 915 *value_len = 4; 916 } else if (IMAGE_ENABLE_SHA1 && strcmp(algo, "sha1") == 0) { 917 sha1_csum_wd((unsigned char *)data, data_len, 918 (unsigned char *)value, CHUNKSZ_SHA1); 919 *value_len = 20; 920 } else if (IMAGE_ENABLE_SHA256 && strcmp(algo, "sha256") == 0) { 921 sha256_csum_wd((unsigned char *)data, data_len, 922 (unsigned char *)value, CHUNKSZ_SHA256); 923 *value_len = SHA256_SUM_LEN; 924 } else if (IMAGE_ENABLE_MD5 && strcmp(algo, "md5") == 0) { 925 md5_wd((unsigned char *)data, data_len, value, CHUNKSZ_MD5); 926 *value_len = 16; 927 } else { 928 debug("Unsupported hash alogrithm\n"); 929 return -1; 930 } 931 return 0; 932 } 933 934 static int fit_image_check_hash(const void *fit, int noffset, const void *data, 935 size_t size, char **err_msgp) 936 { 937 uint8_t value[FIT_MAX_HASH_LEN]; 938 int value_len; 939 char *algo; 940 uint8_t *fit_value; 941 int fit_value_len; 942 int ignore; 943 944 *err_msgp = NULL; 945 946 if (fit_image_hash_get_algo(fit, noffset, &algo)) { 947 *err_msgp = "Can't get hash algo property"; 948 return -1; 949 } 950 printf("%s", algo); 951 952 if (IMAGE_ENABLE_IGNORE) { 953 fit_image_hash_get_ignore(fit, noffset, &ignore); 954 if (ignore) { 955 printf("-skipped "); 956 return 0; 957 } 958 } 959 960 if (fit_image_hash_get_value(fit, noffset, &fit_value, 961 &fit_value_len)) { 962 *err_msgp = "Can't get hash value property"; 963 return -1; 964 } 965 966 if (calculate_hash(data, size, algo, value, &value_len)) { 967 *err_msgp = "Unsupported hash algorithm"; 968 return -1; 969 } 970 971 if (value_len != fit_value_len) { 972 *err_msgp = "Bad hash value len"; 973 return -1; 974 } else if (memcmp(value, fit_value, value_len) != 0) { 975 *err_msgp = "Bad hash value"; 976 return -1; 977 } 978 979 return 0; 980 } 981 982 /** 983 * fit_image_verify - verify data intergity 984 * @fit: pointer to the FIT format image header 985 * @image_noffset: component image node offset 986 * 987 * fit_image_verify() goes over component image hash nodes, 988 * re-calculates each data hash and compares with the value stored in hash 989 * node. 990 * 991 * returns: 992 * 1, if all hashes are valid 993 * 0, otherwise (or on error) 994 */ 995 int fit_image_verify(const void *fit, int image_noffset) 996 { 997 const void *data; 998 size_t size; 999 int noffset = 0; 1000 char *err_msg = ""; 1001 int verify_all = 1; 1002 int ret; 1003 1004 /* Get image data and data length */ 1005 if (fit_image_get_data(fit, image_noffset, &data, &size)) { 1006 err_msg = "Can't get image data/size"; 1007 goto error; 1008 } 1009 1010 /* Verify all required signatures */ 1011 if (IMAGE_ENABLE_VERIFY && 1012 fit_image_verify_required_sigs(fit, image_noffset, data, size, 1013 gd_fdt_blob(), &verify_all)) { 1014 err_msg = "Unable to verify required signature"; 1015 goto error; 1016 } 1017 1018 /* Process all hash subnodes of the component image node */ 1019 fdt_for_each_subnode(fit, noffset, image_noffset) { 1020 const char *name = fit_get_name(fit, noffset, NULL); 1021 1022 /* 1023 * Check subnode name, must be equal to "hash". 1024 * Multiple hash nodes require unique unit node 1025 * names, e.g. hash@1, hash@2, etc. 1026 */ 1027 if (!strncmp(name, FIT_HASH_NODENAME, 1028 strlen(FIT_HASH_NODENAME))) { 1029 if (fit_image_check_hash(fit, noffset, data, size, 1030 &err_msg)) 1031 goto error; 1032 puts("+ "); 1033 } else if (IMAGE_ENABLE_VERIFY && verify_all && 1034 !strncmp(name, FIT_SIG_NODENAME, 1035 strlen(FIT_SIG_NODENAME))) { 1036 ret = fit_image_check_sig(fit, noffset, data, 1037 size, -1, &err_msg); 1038 1039 /* 1040 * Show an indication on failure, but do not return 1041 * an error. Only keys marked 'required' can cause 1042 * an image validation failure. See the call to 1043 * fit_image_verify_required_sigs() above. 1044 */ 1045 if (ret) 1046 puts("- "); 1047 else 1048 puts("+ "); 1049 } 1050 } 1051 1052 if (noffset == -FDT_ERR_TRUNCATED || noffset == -FDT_ERR_BADSTRUCTURE) { 1053 err_msg = "Corrupted or truncated tree"; 1054 goto error; 1055 } 1056 1057 return 1; 1058 1059 error: 1060 printf(" error!\n%s for '%s' hash node in '%s' image node\n", 1061 err_msg, fit_get_name(fit, noffset, NULL), 1062 fit_get_name(fit, image_noffset, NULL)); 1063 return 0; 1064 } 1065 1066 /** 1067 * fit_all_image_verify - verify data intergity for all images 1068 * @fit: pointer to the FIT format image header 1069 * 1070 * fit_all_image_verify() goes over all images in the FIT and 1071 * for every images checks if all it's hashes are valid. 1072 * 1073 * returns: 1074 * 1, if all hashes of all images are valid 1075 * 0, otherwise (or on error) 1076 */ 1077 int fit_all_image_verify(const void *fit) 1078 { 1079 int images_noffset; 1080 int noffset; 1081 int ndepth; 1082 int count; 1083 1084 /* Find images parent node offset */ 1085 images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH); 1086 if (images_noffset < 0) { 1087 printf("Can't find images parent node '%s' (%s)\n", 1088 FIT_IMAGES_PATH, fdt_strerror(images_noffset)); 1089 return 0; 1090 } 1091 1092 /* Process all image subnodes, check hashes for each */ 1093 printf("## Checking hash(es) for FIT Image at %08lx ...\n", 1094 (ulong)fit); 1095 for (ndepth = 0, count = 0, 1096 noffset = fdt_next_node(fit, images_noffset, &ndepth); 1097 (noffset >= 0) && (ndepth > 0); 1098 noffset = fdt_next_node(fit, noffset, &ndepth)) { 1099 if (ndepth == 1) { 1100 /* 1101 * Direct child node of the images parent node, 1102 * i.e. component image node. 1103 */ 1104 printf(" Hash(es) for Image %u (%s): ", count++, 1105 fit_get_name(fit, noffset, NULL)); 1106 1107 if (!fit_image_verify(fit, noffset)) 1108 return 0; 1109 printf("\n"); 1110 } 1111 } 1112 return 1; 1113 } 1114 1115 /** 1116 * fit_image_check_os - check whether image node is of a given os type 1117 * @fit: pointer to the FIT format image header 1118 * @noffset: component image node offset 1119 * @os: requested image os 1120 * 1121 * fit_image_check_os() reads image os property and compares its numeric 1122 * id with the requested os. Comparison result is returned to the caller. 1123 * 1124 * returns: 1125 * 1 if image is of given os type 1126 * 0 otherwise (or on error) 1127 */ 1128 int fit_image_check_os(const void *fit, int noffset, uint8_t os) 1129 { 1130 uint8_t image_os; 1131 1132 if (fit_image_get_os(fit, noffset, &image_os)) 1133 return 0; 1134 return (os == image_os); 1135 } 1136 1137 /** 1138 * fit_image_check_arch - check whether image node is of a given arch 1139 * @fit: pointer to the FIT format image header 1140 * @noffset: component image node offset 1141 * @arch: requested imagearch 1142 * 1143 * fit_image_check_arch() reads image arch property and compares its numeric 1144 * id with the requested arch. Comparison result is returned to the caller. 1145 * 1146 * returns: 1147 * 1 if image is of given arch 1148 * 0 otherwise (or on error) 1149 */ 1150 int fit_image_check_arch(const void *fit, int noffset, uint8_t arch) 1151 { 1152 uint8_t image_arch; 1153 1154 if (fit_image_get_arch(fit, noffset, &image_arch)) 1155 return 0; 1156 return (arch == image_arch) || 1157 (arch == IH_ARCH_I386 && image_arch == IH_ARCH_X86_64); 1158 } 1159 1160 /** 1161 * fit_image_check_type - check whether image node is of a given type 1162 * @fit: pointer to the FIT format image header 1163 * @noffset: component image node offset 1164 * @type: requested image type 1165 * 1166 * fit_image_check_type() reads image type property and compares its numeric 1167 * id with the requested type. Comparison result is returned to the caller. 1168 * 1169 * returns: 1170 * 1 if image is of given type 1171 * 0 otherwise (or on error) 1172 */ 1173 int fit_image_check_type(const void *fit, int noffset, uint8_t type) 1174 { 1175 uint8_t image_type; 1176 1177 if (fit_image_get_type(fit, noffset, &image_type)) 1178 return 0; 1179 return (type == image_type); 1180 } 1181 1182 /** 1183 * fit_image_check_comp - check whether image node uses given compression 1184 * @fit: pointer to the FIT format image header 1185 * @noffset: component image node offset 1186 * @comp: requested image compression type 1187 * 1188 * fit_image_check_comp() reads image compression property and compares its 1189 * numeric id with the requested compression type. Comparison result is 1190 * returned to the caller. 1191 * 1192 * returns: 1193 * 1 if image uses requested compression 1194 * 0 otherwise (or on error) 1195 */ 1196 int fit_image_check_comp(const void *fit, int noffset, uint8_t comp) 1197 { 1198 uint8_t image_comp; 1199 1200 if (fit_image_get_comp(fit, noffset, &image_comp)) 1201 return 0; 1202 return (comp == image_comp); 1203 } 1204 1205 /** 1206 * fit_check_format - sanity check FIT image format 1207 * @fit: pointer to the FIT format image header 1208 * 1209 * fit_check_format() runs a basic sanity FIT image verification. 1210 * Routine checks for mandatory properties, nodes, etc. 1211 * 1212 * returns: 1213 * 1, on success 1214 * 0, on failure 1215 */ 1216 int fit_check_format(const void *fit) 1217 { 1218 /* mandatory / node 'description' property */ 1219 if (fdt_getprop(fit, 0, FIT_DESC_PROP, NULL) == NULL) { 1220 debug("Wrong FIT format: no description\n"); 1221 return 0; 1222 } 1223 1224 if (IMAGE_ENABLE_TIMESTAMP) { 1225 /* mandatory / node 'timestamp' property */ 1226 if (fdt_getprop(fit, 0, FIT_TIMESTAMP_PROP, NULL) == NULL) { 1227 debug("Wrong FIT format: no timestamp\n"); 1228 return 0; 1229 } 1230 } 1231 1232 /* mandatory subimages parent '/images' node */ 1233 if (fdt_path_offset(fit, FIT_IMAGES_PATH) < 0) { 1234 debug("Wrong FIT format: no images parent node\n"); 1235 return 0; 1236 } 1237 1238 return 1; 1239 } 1240 1241 1242 /** 1243 * fit_conf_find_compat 1244 * @fit: pointer to the FIT format image header 1245 * @fdt: pointer to the device tree to compare against 1246 * 1247 * fit_conf_find_compat() attempts to find the configuration whose fdt is the 1248 * most compatible with the passed in device tree. 1249 * 1250 * Example: 1251 * 1252 * / o image-tree 1253 * |-o images 1254 * | |-o fdt@1 1255 * | |-o fdt@2 1256 * | 1257 * |-o configurations 1258 * |-o config@1 1259 * | |-fdt = fdt@1 1260 * | 1261 * |-o config@2 1262 * |-fdt = fdt@2 1263 * 1264 * / o U-Boot fdt 1265 * |-compatible = "foo,bar", "bim,bam" 1266 * 1267 * / o kernel fdt1 1268 * |-compatible = "foo,bar", 1269 * 1270 * / o kernel fdt2 1271 * |-compatible = "bim,bam", "baz,biz" 1272 * 1273 * Configuration 1 would be picked because the first string in U-Boot's 1274 * compatible list, "foo,bar", matches a compatible string in the root of fdt1. 1275 * "bim,bam" in fdt2 matches the second string which isn't as good as fdt1. 1276 * 1277 * returns: 1278 * offset to the configuration to use if one was found 1279 * -1 otherwise 1280 */ 1281 int fit_conf_find_compat(const void *fit, const void *fdt) 1282 { 1283 int ndepth = 0; 1284 int noffset, confs_noffset, images_noffset; 1285 const void *fdt_compat; 1286 int fdt_compat_len; 1287 int best_match_offset = 0; 1288 int best_match_pos = 0; 1289 1290 confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH); 1291 images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH); 1292 if (confs_noffset < 0 || images_noffset < 0) { 1293 debug("Can't find configurations or images nodes.\n"); 1294 return -1; 1295 } 1296 1297 fdt_compat = fdt_getprop(fdt, 0, "compatible", &fdt_compat_len); 1298 if (!fdt_compat) { 1299 debug("Fdt for comparison has no \"compatible\" property.\n"); 1300 return -1; 1301 } 1302 1303 /* 1304 * Loop over the configurations in the FIT image. 1305 */ 1306 for (noffset = fdt_next_node(fit, confs_noffset, &ndepth); 1307 (noffset >= 0) && (ndepth > 0); 1308 noffset = fdt_next_node(fit, noffset, &ndepth)) { 1309 const void *kfdt; 1310 const char *kfdt_name; 1311 int kfdt_noffset; 1312 const char *cur_fdt_compat; 1313 int len; 1314 size_t size; 1315 int i; 1316 1317 if (ndepth > 1) 1318 continue; 1319 1320 kfdt_name = fdt_getprop(fit, noffset, "fdt", &len); 1321 if (!kfdt_name) { 1322 debug("No fdt property found.\n"); 1323 continue; 1324 } 1325 kfdt_noffset = fdt_subnode_offset(fit, images_noffset, 1326 kfdt_name); 1327 if (kfdt_noffset < 0) { 1328 debug("No image node named \"%s\" found.\n", 1329 kfdt_name); 1330 continue; 1331 } 1332 /* 1333 * Get a pointer to this configuration's fdt. 1334 */ 1335 if (fit_image_get_data(fit, kfdt_noffset, &kfdt, &size)) { 1336 debug("Failed to get fdt \"%s\".\n", kfdt_name); 1337 continue; 1338 } 1339 1340 len = fdt_compat_len; 1341 cur_fdt_compat = fdt_compat; 1342 /* 1343 * Look for a match for each U-Boot compatibility string in 1344 * turn in this configuration's fdt. 1345 */ 1346 for (i = 0; len > 0 && 1347 (!best_match_offset || best_match_pos > i); i++) { 1348 int cur_len = strlen(cur_fdt_compat) + 1; 1349 1350 if (!fdt_node_check_compatible(kfdt, 0, 1351 cur_fdt_compat)) { 1352 best_match_offset = noffset; 1353 best_match_pos = i; 1354 break; 1355 } 1356 len -= cur_len; 1357 cur_fdt_compat += cur_len; 1358 } 1359 } 1360 if (!best_match_offset) { 1361 debug("No match found.\n"); 1362 return -1; 1363 } 1364 1365 return best_match_offset; 1366 } 1367 1368 /** 1369 * fit_conf_get_node - get node offset for configuration of a given unit name 1370 * @fit: pointer to the FIT format image header 1371 * @conf_uname: configuration node unit name 1372 * 1373 * fit_conf_get_node() finds a configuration (withing the '/configurations' 1374 * parant node) of a provided unit name. If configuration is found its node 1375 * offset is returned to the caller. 1376 * 1377 * When NULL is provided in second argument fit_conf_get_node() will search 1378 * for a default configuration node instead. Default configuration node unit 1379 * name is retrieved from FIT_DEFAULT_PROP property of the '/configurations' 1380 * node. 1381 * 1382 * returns: 1383 * configuration node offset when found (>=0) 1384 * negative number on failure (FDT_ERR_* code) 1385 */ 1386 int fit_conf_get_node(const void *fit, const char *conf_uname) 1387 { 1388 int noffset, confs_noffset; 1389 int len; 1390 1391 confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH); 1392 if (confs_noffset < 0) { 1393 debug("Can't find configurations parent node '%s' (%s)\n", 1394 FIT_CONFS_PATH, fdt_strerror(confs_noffset)); 1395 return confs_noffset; 1396 } 1397 1398 if (conf_uname == NULL) { 1399 /* get configuration unit name from the default property */ 1400 debug("No configuration specified, trying default...\n"); 1401 conf_uname = (char *)fdt_getprop(fit, confs_noffset, 1402 FIT_DEFAULT_PROP, &len); 1403 if (conf_uname == NULL) { 1404 fit_get_debug(fit, confs_noffset, FIT_DEFAULT_PROP, 1405 len); 1406 return len; 1407 } 1408 debug("Found default configuration: '%s'\n", conf_uname); 1409 } 1410 1411 noffset = fdt_subnode_offset(fit, confs_noffset, conf_uname); 1412 if (noffset < 0) { 1413 debug("Can't get node offset for configuration unit name: '%s' (%s)\n", 1414 conf_uname, fdt_strerror(noffset)); 1415 } 1416 1417 return noffset; 1418 } 1419 1420 int fit_conf_get_prop_node(const void *fit, int noffset, 1421 const char *prop_name) 1422 { 1423 char *uname; 1424 int len; 1425 1426 /* get kernel image unit name from configuration kernel property */ 1427 uname = (char *)fdt_getprop(fit, noffset, prop_name, &len); 1428 if (uname == NULL) 1429 return len; 1430 1431 return fit_image_get_node(fit, uname); 1432 } 1433 1434 /** 1435 * fit_conf_print - prints out the FIT configuration details 1436 * @fit: pointer to the FIT format image header 1437 * @noffset: offset of the configuration node 1438 * @p: pointer to prefix string 1439 * 1440 * fit_conf_print() lists all mandatory properies for the processed 1441 * configuration node. 1442 * 1443 * returns: 1444 * no returned results 1445 */ 1446 void fit_conf_print(const void *fit, int noffset, const char *p) 1447 { 1448 char *desc; 1449 char *uname; 1450 int ret; 1451 int loadables_index; 1452 1453 /* Mandatory properties */ 1454 ret = fit_get_desc(fit, noffset, &desc); 1455 printf("%s Description: ", p); 1456 if (ret) 1457 printf("unavailable\n"); 1458 else 1459 printf("%s\n", desc); 1460 1461 uname = (char *)fdt_getprop(fit, noffset, FIT_KERNEL_PROP, NULL); 1462 printf("%s Kernel: ", p); 1463 if (uname == NULL) 1464 printf("unavailable\n"); 1465 else 1466 printf("%s\n", uname); 1467 1468 /* Optional properties */ 1469 uname = (char *)fdt_getprop(fit, noffset, FIT_RAMDISK_PROP, NULL); 1470 if (uname) 1471 printf("%s Init Ramdisk: %s\n", p, uname); 1472 1473 uname = (char *)fdt_getprop(fit, noffset, FIT_FDT_PROP, NULL); 1474 if (uname) 1475 printf("%s FDT: %s\n", p, uname); 1476 1477 /* Print out all of the specified loadables */ 1478 for (loadables_index = 0; 1479 fdt_get_string_index(fit, noffset, 1480 FIT_LOADABLE_PROP, 1481 loadables_index, 1482 (const char **)&uname) == 0; 1483 loadables_index++) 1484 { 1485 if (loadables_index == 0) { 1486 printf("%s Loadables: ", p); 1487 } else { 1488 printf("%s ", p); 1489 } 1490 printf("%s\n", uname); 1491 } 1492 } 1493 1494 static int fit_image_select(const void *fit, int rd_noffset, int verify) 1495 { 1496 fit_image_print(fit, rd_noffset, " "); 1497 1498 if (verify) { 1499 puts(" Verifying Hash Integrity ... "); 1500 if (!fit_image_verify(fit, rd_noffset)) { 1501 puts("Bad Data Hash\n"); 1502 return -EACCES; 1503 } 1504 puts("OK\n"); 1505 } 1506 1507 return 0; 1508 } 1509 1510 int fit_get_node_from_config(bootm_headers_t *images, const char *prop_name, 1511 ulong addr) 1512 { 1513 int cfg_noffset; 1514 void *fit_hdr; 1515 int noffset; 1516 1517 debug("* %s: using config '%s' from image at 0x%08lx\n", 1518 prop_name, images->fit_uname_cfg, addr); 1519 1520 /* Check whether configuration has this property defined */ 1521 fit_hdr = map_sysmem(addr, 0); 1522 cfg_noffset = fit_conf_get_node(fit_hdr, images->fit_uname_cfg); 1523 if (cfg_noffset < 0) { 1524 debug("* %s: no such config\n", prop_name); 1525 return -ENOENT; 1526 } 1527 1528 noffset = fit_conf_get_prop_node(fit_hdr, cfg_noffset, prop_name); 1529 if (noffset < 0) { 1530 debug("* %s: no '%s' in config\n", prop_name, prop_name); 1531 return -ENOLINK; 1532 } 1533 1534 return noffset; 1535 } 1536 1537 /** 1538 * fit_get_image_type_property() - get property name for IH_TYPE_... 1539 * 1540 * @return the properly name where we expect to find the image in the 1541 * config node 1542 */ 1543 static const char *fit_get_image_type_property(int type) 1544 { 1545 /* 1546 * This is sort-of available in the uimage_type[] table in image.c 1547 * but we don't have access to the sohrt name, and "fdt" is different 1548 * anyway. So let's just keep it here. 1549 */ 1550 switch (type) { 1551 case IH_TYPE_FLATDT: 1552 return FIT_FDT_PROP; 1553 case IH_TYPE_KERNEL: 1554 return FIT_KERNEL_PROP; 1555 case IH_TYPE_RAMDISK: 1556 return FIT_RAMDISK_PROP; 1557 case IH_TYPE_X86_SETUP: 1558 return FIT_SETUP_PROP; 1559 case IH_TYPE_LOADABLE: 1560 return FIT_LOADABLE_PROP; 1561 } 1562 1563 return "unknown"; 1564 } 1565 1566 int fit_image_load(bootm_headers_t *images, ulong addr, 1567 const char **fit_unamep, const char **fit_uname_configp, 1568 int arch, int image_type, int bootstage_id, 1569 enum fit_load_op load_op, ulong *datap, ulong *lenp) 1570 { 1571 int cfg_noffset, noffset; 1572 const char *fit_uname; 1573 const char *fit_uname_config; 1574 const void *fit; 1575 const void *buf; 1576 size_t size; 1577 int type_ok, os_ok; 1578 ulong load, data, len; 1579 uint8_t os; 1580 const char *prop_name; 1581 int ret; 1582 1583 fit = map_sysmem(addr, 0); 1584 fit_uname = fit_unamep ? *fit_unamep : NULL; 1585 fit_uname_config = fit_uname_configp ? *fit_uname_configp : NULL; 1586 prop_name = fit_get_image_type_property(image_type); 1587 printf("## Loading %s from FIT Image at %08lx ...\n", prop_name, addr); 1588 1589 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_FORMAT); 1590 if (!fit_check_format(fit)) { 1591 printf("Bad FIT %s image format!\n", prop_name); 1592 bootstage_error(bootstage_id + BOOTSTAGE_SUB_FORMAT); 1593 return -ENOEXEC; 1594 } 1595 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_FORMAT_OK); 1596 if (fit_uname) { 1597 /* get FIT component image node offset */ 1598 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_UNIT_NAME); 1599 noffset = fit_image_get_node(fit, fit_uname); 1600 } else { 1601 /* 1602 * no image node unit name, try to get config 1603 * node first. If config unit node name is NULL 1604 * fit_conf_get_node() will try to find default config node 1605 */ 1606 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_NO_UNIT_NAME); 1607 if (IMAGE_ENABLE_BEST_MATCH && !fit_uname_config) { 1608 cfg_noffset = fit_conf_find_compat(fit, gd_fdt_blob()); 1609 } else { 1610 cfg_noffset = fit_conf_get_node(fit, 1611 fit_uname_config); 1612 } 1613 if (cfg_noffset < 0) { 1614 puts("Could not find configuration node\n"); 1615 bootstage_error(bootstage_id + 1616 BOOTSTAGE_SUB_NO_UNIT_NAME); 1617 return -ENOENT; 1618 } 1619 fit_uname_config = fdt_get_name(fit, cfg_noffset, NULL); 1620 printf(" Using '%s' configuration\n", fit_uname_config); 1621 if (image_type == IH_TYPE_KERNEL) { 1622 /* Remember (and possibly verify) this config */ 1623 images->fit_uname_cfg = fit_uname_config; 1624 if (IMAGE_ENABLE_VERIFY && images->verify) { 1625 puts(" Verifying Hash Integrity ... "); 1626 if (fit_config_verify(fit, cfg_noffset)) { 1627 puts("Bad Data Hash\n"); 1628 bootstage_error(bootstage_id + 1629 BOOTSTAGE_SUB_HASH); 1630 return -EACCES; 1631 } 1632 puts("OK\n"); 1633 } 1634 bootstage_mark(BOOTSTAGE_ID_FIT_CONFIG); 1635 } 1636 1637 noffset = fit_conf_get_prop_node(fit, cfg_noffset, 1638 prop_name); 1639 fit_uname = fit_get_name(fit, noffset, NULL); 1640 } 1641 if (noffset < 0) { 1642 puts("Could not find subimage node\n"); 1643 bootstage_error(bootstage_id + BOOTSTAGE_SUB_SUBNODE); 1644 return -ENOENT; 1645 } 1646 1647 printf(" Trying '%s' %s subimage\n", fit_uname, prop_name); 1648 1649 ret = fit_image_select(fit, noffset, images->verify); 1650 if (ret) { 1651 bootstage_error(bootstage_id + BOOTSTAGE_SUB_HASH); 1652 return ret; 1653 } 1654 1655 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_CHECK_ARCH); 1656 #if !defined(USE_HOSTCC) && !defined(CONFIG_SANDBOX) 1657 if (!fit_image_check_target_arch(fit, noffset)) { 1658 puts("Unsupported Architecture\n"); 1659 bootstage_error(bootstage_id + BOOTSTAGE_SUB_CHECK_ARCH); 1660 return -ENOEXEC; 1661 } 1662 #endif 1663 if (image_type == IH_TYPE_FLATDT && 1664 !fit_image_check_comp(fit, noffset, IH_COMP_NONE)) { 1665 puts("FDT image is compressed"); 1666 return -EPROTONOSUPPORT; 1667 } 1668 1669 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_CHECK_ALL); 1670 type_ok = fit_image_check_type(fit, noffset, image_type) || 1671 (image_type == IH_TYPE_KERNEL && 1672 fit_image_check_type(fit, noffset, 1673 IH_TYPE_KERNEL_NOLOAD)); 1674 1675 os_ok = image_type == IH_TYPE_FLATDT || 1676 fit_image_check_os(fit, noffset, IH_OS_LINUX) || 1677 fit_image_check_os(fit, noffset, IH_OS_OPENRTOS); 1678 1679 /* 1680 * If either of the checks fail, we should report an error, but 1681 * if the image type is coming from the "loadables" field, we 1682 * don't care what it is 1683 */ 1684 if ((!type_ok || !os_ok) && image_type != IH_TYPE_LOADABLE) { 1685 fit_image_get_os(fit, noffset, &os); 1686 printf("No %s %s %s Image\n", 1687 genimg_get_os_name(os), 1688 genimg_get_arch_name(arch), 1689 genimg_get_type_name(image_type)); 1690 bootstage_error(bootstage_id + BOOTSTAGE_SUB_CHECK_ALL); 1691 return -EIO; 1692 } 1693 1694 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_CHECK_ALL_OK); 1695 1696 /* get image data address and length */ 1697 if (fit_image_get_data(fit, noffset, &buf, &size)) { 1698 printf("Could not find %s subimage data!\n", prop_name); 1699 bootstage_error(bootstage_id + BOOTSTAGE_SUB_GET_DATA); 1700 return -ENOENT; 1701 } 1702 len = (ulong)size; 1703 1704 /* verify that image data is a proper FDT blob */ 1705 if (image_type == IH_TYPE_FLATDT && fdt_check_header(buf)) { 1706 puts("Subimage data is not a FDT"); 1707 return -ENOEXEC; 1708 } 1709 1710 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_GET_DATA_OK); 1711 1712 /* 1713 * Work-around for eldk-4.2 which gives this warning if we try to 1714 * cast in the unmap_sysmem() call: 1715 * warning: initialization discards qualifiers from pointer target type 1716 */ 1717 { 1718 void *vbuf = (void *)buf; 1719 1720 data = map_to_sysmem(vbuf); 1721 } 1722 1723 if (load_op == FIT_LOAD_IGNORED) { 1724 /* Don't load */ 1725 } else if (fit_image_get_load(fit, noffset, &load)) { 1726 if (load_op == FIT_LOAD_REQUIRED) { 1727 printf("Can't get %s subimage load address!\n", 1728 prop_name); 1729 bootstage_error(bootstage_id + BOOTSTAGE_SUB_LOAD); 1730 return -EBADF; 1731 } 1732 } else if (load_op != FIT_LOAD_OPTIONAL_NON_ZERO || load) { 1733 ulong image_start, image_end; 1734 ulong load_end; 1735 void *dst; 1736 1737 /* 1738 * move image data to the load address, 1739 * make sure we don't overwrite initial image 1740 */ 1741 image_start = addr; 1742 image_end = addr + fit_get_size(fit); 1743 1744 load_end = load + len; 1745 if (image_type != IH_TYPE_KERNEL && 1746 load < image_end && load_end > image_start) { 1747 printf("Error: %s overwritten\n", prop_name); 1748 return -EXDEV; 1749 } 1750 1751 printf(" Loading %s from 0x%08lx to 0x%08lx\n", 1752 prop_name, data, load); 1753 1754 dst = map_sysmem(load, len); 1755 memmove(dst, buf, len); 1756 data = load; 1757 } 1758 bootstage_mark(bootstage_id + BOOTSTAGE_SUB_LOAD); 1759 1760 *datap = data; 1761 *lenp = len; 1762 if (fit_unamep) 1763 *fit_unamep = (char *)fit_uname; 1764 if (fit_uname_configp) 1765 *fit_uname_configp = (char *)fit_uname_config; 1766 1767 return noffset; 1768 } 1769 1770 int boot_get_setup_fit(bootm_headers_t *images, uint8_t arch, 1771 ulong *setup_start, ulong *setup_len) 1772 { 1773 int noffset; 1774 ulong addr; 1775 ulong len; 1776 int ret; 1777 1778 addr = map_to_sysmem(images->fit_hdr_os); 1779 noffset = fit_get_node_from_config(images, FIT_SETUP_PROP, addr); 1780 if (noffset < 0) 1781 return noffset; 1782 1783 ret = fit_image_load(images, addr, NULL, NULL, arch, 1784 IH_TYPE_X86_SETUP, BOOTSTAGE_ID_FIT_SETUP_START, 1785 FIT_LOAD_REQUIRED, setup_start, &len); 1786 1787 return ret; 1788 } 1789