1 /* 2 * (C) Copyright 2015 Google, Inc 3 * Written by Simon Glass <sjg@chromium.org> 4 * 5 * (C) 2017 Theobroma Systems Design und Consulting GmbH 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 * 9 * Helper functions for Rockchip images 10 */ 11 12 #include "imagetool.h" 13 #include <image.h> 14 #include <u-boot/sha256.h> 15 #include <rc4.h> 16 #include "mkimage.h" 17 #include "rkcommon.h" 18 19 enum { 20 RK_MAGIC = 0x0ff0aa55, 21 RK_MAGIC_V2 = 0x534E4B52, 22 }; 23 24 enum { 25 RK_HEADER_V1 = 1, 26 RK_HEADER_V2 = 2, 27 }; 28 29 enum hash_type { 30 HASH_NONE = 0, 31 HASH_SHA256 = 1, 32 HASH_SHA512 = 2, 33 }; 34 35 /** 36 * struct image_entry 37 * 38 * @size_and_off: [31:16]image size;[15:0]image offset 39 * @address: default as 0xFFFFFFFF 40 * @flag: no use 41 * @counter: no use 42 * @hash: hash of image 43 * 44 */ 45 struct image_entry { 46 uint32_t size_and_off; 47 uint32_t address; 48 uint32_t flag; 49 uint32_t counter; 50 uint8_t reserved[8]; 51 uint8_t hash[64]; 52 }; 53 54 /** 55 * struct header0_info_v2 - from rk35 on boot rom using the new header block 56 * 57 * This is stored at SD card block 64 (where each block is 512 bytes) 58 * 59 * @magic: Magic (must be RK_MAGIC_V2) 60 * @size_and_nimage: [31:16]number of images;[15:0] 61 * offset to hash field of header(unit as 4Byte) 62 * @boot_flag: [3:0]hash type(0:none,1:sha256,2:sha512) 63 * @signature: hash or signature for header info 64 * 65 */ 66 struct header0_info_v2 { 67 uint32_t magic; 68 uint8_t reserved[4]; 69 uint32_t size_and_nimage; 70 uint32_t boot_flag; 71 uint8_t reserved1[104]; 72 struct image_entry images[4]; 73 uint8_t reserved2[1064]; 74 uint8_t hash[512]; 75 }; 76 77 /** 78 * struct header0_info - header block for boot ROM 79 * 80 * This is stored at SD card block 64 (where each block is 512 bytes, or at 81 * the start of SPI flash. It is encoded with RC4. 82 * 83 * @magic: Magic (must be RK_MAGIC) 84 * @disable_rc4: 0 to use rc4 for boot image, 1 to use plain binary 85 * @init_offset: Offset in blocks of the SPL code from this header 86 * block. E.g. 4 means 2KB after the start of this header. 87 * Other fields are not used by U-Boot 88 */ 89 struct header0_info { 90 uint32_t magic; 91 uint8_t reserved[4]; 92 uint32_t disable_rc4; 93 uint16_t init_offset; 94 uint8_t reserved1[492]; 95 uint16_t init_size; 96 uint16_t init_boot_size; 97 uint8_t reserved2[2]; 98 }; 99 100 /** 101 * struct header1 info 102 */ 103 struct header1_info { 104 uint32_t magic; 105 }; 106 107 /** 108 * struct spl_info - spl info for each chip 109 * 110 * @imagename: Image name(passed by "mkimage -n") 111 * @spl_hdr: Boot ROM requires a 4-bytes spl header 112 * @spl_size: Spl size(include extra 4-bytes spl header) 113 * @spl_rc4: RC4 encode the SPL binary (same key as header) 114 * @header_ver: header block version 115 */ 116 struct spl_info { 117 const char *imagename; 118 const char *spl_hdr; 119 const uint32_t spl_size; 120 const bool spl_rc4; 121 const uint32_t header_ver; 122 }; 123 124 static struct spl_info spl_infos[] = { 125 { "rk3036", "RK30", 0x1000, false, RK_HEADER_V1 }, 126 { "rk3066", "RK30", 0x8000, true, RK_HEADER_V1 }, 127 { "rk3128", "RK31", 0x2000 - 0x800, false, RK_HEADER_V1 }, 128 { "px3se", "RK31", 0x2000 - 0x800, false, RK_HEADER_V1 }, 129 { "rk3188", "RK31", 0x8000 - 0x800, true, RK_HEADER_V1 }, 130 { "rk322x", "RK32", 0x8000 - 0x1000, false, RK_HEADER_V1 }, 131 { "rk3288", "RK32", 0x8000, false, RK_HEADER_V1 }, 132 { "rk3308", "RK33", 0x40000 - 0x1000, false, RK_HEADER_V1 }, 133 { "rk3328", "RK32", 0x8000 - 0x800, false, RK_HEADER_V1 }, 134 { "rk3368", "RK33", 0x8000 - 0x1000, false, RK_HEADER_V1 }, 135 { "rk3399", "RK33", 0x30000 - 0x2000, false, RK_HEADER_V1 }, 136 { "rk3326", "RK33", 0x4000 - 0x1000, false, RK_HEADER_V1 }, 137 { "px30", "RK33", 0x4000 - 0x1000, false, RK_HEADER_V1 }, 138 { "rv1108", "RK11", 0x1800, false, RK_HEADER_V1 }, 139 { "rv1126", "110B", 0x10000 - 0x1000, false, RK_HEADER_V1 }, 140 { "rk1808", "RK18", 0x200000 - 0x2000, false, RK_HEADER_V1 }, 141 { "rk3528", "RK35", 0x10000 - 0x1000, false, RK_HEADER_V2 }, 142 { "rk3562", "RK35", 0x10000 - 0x1000, false, RK_HEADER_V2 }, 143 { "rk3568", "RK35", 0x10000 - 0x1000, false, RK_HEADER_V2 }, 144 { "rk3576", "RK35", 0x80000 - 0x1000, false, RK_HEADER_V2 }, 145 { "rk3588", "RK35", 0x100000 - 0x1000, false, RK_HEADER_V2 }, 146 { "rk3506", "RK35", 0x40000 - 0x1000, false, RK_HEADER_V2 }, 147 { "rv1103b", "110E", 0x40000 - 0x1000, false, RK_HEADER_V2 }, 148 }; 149 150 /** 151 * struct spl_params - spl params parsed in check_params() 152 * 153 * @init_file: Init data file path 154 * @init_size: Aligned size of init data in bytes 155 * @boot_file: Boot data file path 156 * @boot_size: Aligned size of boot data in bytes 157 */ 158 159 struct spl_params { 160 char *init_file; 161 uint32_t init_size; 162 char *boot_file; 163 uint32_t boot_size; 164 }; 165 166 static struct spl_params spl_params = { 0 }; 167 168 static unsigned char rc4_key[16] = { 169 124, 78, 3, 4, 85, 5, 9, 7, 170 45, 44, 123, 56, 23, 13, 23, 17 171 }; 172 173 static struct spl_info *rkcommon_get_spl_info(char *imagename) 174 { 175 int i; 176 177 if (!imagename) 178 return NULL; 179 180 for (i = 0; i < ARRAY_SIZE(spl_infos); i++) 181 if (!strncmp(imagename, spl_infos[i].imagename, 6)) 182 return spl_infos + i; 183 184 return NULL; 185 } 186 187 static int rkcommon_get_aligned_size(struct image_tool_params *params, 188 const char *fname) 189 { 190 int size; 191 192 size = imagetool_get_filesize(params, fname); 193 if (size < 0) 194 return -1; 195 196 /* 197 * Pad to a 2KB alignment, as required for init/boot size by the ROM 198 * (see https://lists.denx.de/pipermail/u-boot/2017-May/293268.html) 199 */ 200 return ROUND(size, RK_SIZE_ALIGN); 201 } 202 203 int rkcommon_check_params(struct image_tool_params *params) 204 { 205 int i; 206 207 /* 208 * If this is a operation (list or extract), the don't require 209 * imagename to be set. 210 */ 211 if (params->lflag || params->iflag) 212 return EXIT_SUCCESS; 213 214 if (!rkcommon_get_spl_info(params->imagename)) 215 goto err_spl_info; 216 217 spl_params.init_file = params->datafile; 218 219 spl_params.boot_file = strchr(spl_params.init_file, ':'); 220 if (spl_params.boot_file) { 221 *spl_params.boot_file = '\0'; 222 spl_params.boot_file += 1; 223 } 224 225 spl_params.init_size = 226 rkcommon_get_aligned_size(params, spl_params.init_file); 227 if (spl_params.init_size < 0) 228 return EXIT_FAILURE; 229 230 /* Boot file is optional, and only for back-to-bootrom functionality. */ 231 if (spl_params.boot_file) { 232 spl_params.boot_size = 233 rkcommon_get_aligned_size(params, spl_params.boot_file); 234 if (spl_params.boot_size < 0) 235 return EXIT_FAILURE; 236 } 237 238 if (spl_params.init_size > rkcommon_get_spl_size(params)) { 239 fprintf(stderr, 240 "Error: SPL image is too large (size %#x than %#x)\n", 241 spl_params.init_size, rkcommon_get_spl_size(params)); 242 return EXIT_FAILURE; 243 } 244 245 return EXIT_SUCCESS; 246 247 err_spl_info: 248 fprintf(stderr, "ERROR: imagename (%s) is not supported!\n", 249 params->imagename ? params->imagename : "NULL"); 250 251 fprintf(stderr, "Available imagename:"); 252 for (i = 0; i < ARRAY_SIZE(spl_infos); i++) 253 fprintf(stderr, "\t%s", spl_infos[i].imagename); 254 fprintf(stderr, "\n"); 255 256 return EXIT_FAILURE; 257 } 258 259 const char *rkcommon_get_spl_hdr(struct image_tool_params *params) 260 { 261 struct spl_info *info = rkcommon_get_spl_info(params->imagename); 262 263 /* 264 * info would not be NULL, because of we checked params before. 265 */ 266 return info->spl_hdr; 267 } 268 269 int rkcommon_get_spl_size(struct image_tool_params *params) 270 { 271 struct spl_info *info = rkcommon_get_spl_info(params->imagename); 272 273 /* 274 * info would not be NULL, because of we checked params before. 275 */ 276 return info->spl_size; 277 } 278 279 bool rkcommon_need_rc4_spl(struct image_tool_params *params) 280 { 281 struct spl_info *info = rkcommon_get_spl_info(params->imagename); 282 283 /* 284 * info would not be NULL, because of we checked params before. 285 */ 286 return info->spl_rc4; 287 } 288 289 bool rkcommon_is_header_v2(struct image_tool_params *params) 290 { 291 struct spl_info *info = rkcommon_get_spl_info(params->imagename); 292 293 /* 294 * info would not be NULL, because of we checked params before. 295 */ 296 return (info->header_ver == RK_HEADER_V2); 297 } 298 299 static void do_sha256_hash(uint8_t *buf, uint32_t size, uint8_t *out) 300 { 301 sha256_context ctx; 302 303 sha256_starts(&ctx); 304 sha256_update(&ctx, buf, size); 305 sha256_finish(&ctx, out); 306 } 307 308 static void rkcommon_set_header0(void *buf, struct image_tool_params *params) 309 { 310 struct header0_info *hdr = buf; 311 312 memset(buf, '\0', RK_INIT_OFFSET * RK_BLK_SIZE); 313 hdr->magic = RK_MAGIC; 314 hdr->disable_rc4 = !rkcommon_need_rc4_spl(params); 315 hdr->init_offset = RK_INIT_OFFSET; 316 hdr->init_size = spl_params.init_size / RK_BLK_SIZE; 317 318 /* 319 * init_boot_size needs to be set, as it is read by the BootROM 320 * to determine the size of the next-stage bootloader (e.g. U-Boot 321 * proper), when used with the back-to-bootrom functionality. 322 * 323 * see https://lists.denx.de/pipermail/u-boot/2017-May/293267.html 324 * for a more detailed explanation by Andy Yan 325 */ 326 if (spl_params.boot_file) 327 hdr->init_boot_size = 328 hdr->init_size + spl_params.boot_size / RK_BLK_SIZE; 329 else 330 hdr->init_boot_size = 331 hdr->init_size + RK_MAX_BOOT_SIZE / RK_BLK_SIZE; 332 333 rc4_encode(buf, RK_BLK_SIZE, rc4_key); 334 } 335 336 static void rkcommon_set_header0_v2(void *buf, struct image_tool_params *params) 337 { 338 struct header0_info_v2 *hdr = buf; 339 uint32_t sector_offset, image_sector_count; 340 uint32_t image_size_array[2]; 341 uint8_t *image_ptr = NULL; 342 int i; 343 344 printf("Image Type: Rockchip %s boot image\n", rkcommon_get_spl_hdr(params)); 345 memset(buf, '\0', RK_INIT_OFFSET * RK_BLK_SIZE); 346 hdr->magic = cpu_to_le32(RK_MAGIC_V2); 347 hdr->size_and_nimage = cpu_to_le32((2 << 16) + 384); 348 hdr->boot_flag = cpu_to_le32(HASH_SHA256); 349 sector_offset = 4; 350 image_size_array[0] = spl_params.init_size; 351 image_size_array[1] = spl_params.boot_size; 352 353 for (i = 0; i < 2; i++) { 354 image_sector_count = image_size_array[i] / RK_BLK_SIZE; 355 hdr->images[i].size_and_off = cpu_to_le32((image_sector_count << 16) + sector_offset); 356 hdr->images[i].address = 0xFFFFFFFF; 357 hdr->images[i].counter = cpu_to_le32(i + 1); 358 image_ptr = buf + sector_offset * RK_BLK_SIZE; 359 do_sha256_hash(image_ptr, image_size_array[i], hdr->images[i].hash); 360 sector_offset = sector_offset + image_sector_count; 361 } 362 363 do_sha256_hash(buf, (void *)hdr->hash - buf, hdr->hash); 364 } 365 366 void rkcommon_set_header(void *buf, struct stat *sbuf, int ifd, 367 struct image_tool_params *params) 368 { 369 struct header1_info *hdr = buf + RK_SPL_HDR_START; 370 371 if (rkcommon_is_header_v2(params)) { 372 rkcommon_set_header0_v2(buf, params); 373 } else { 374 rkcommon_set_header0(buf, params); 375 376 /* Set up the SPL name (i.e. copy spl_hdr over) */ 377 if (memcmp(&hdr->magic, "RSAK", 4)) 378 memcpy(&hdr->magic, rkcommon_get_spl_hdr(params), RK_SPL_HDR_SIZE); 379 380 if (rkcommon_need_rc4_spl(params)) 381 rkcommon_rc4_encode_spl(buf, RK_SPL_HDR_START, 382 spl_params.init_size); 383 384 if (spl_params.boot_file) { 385 if (rkcommon_need_rc4_spl(params)) 386 rkcommon_rc4_encode_spl(buf + RK_SPL_HDR_START, 387 spl_params.init_size, 388 spl_params.boot_size); 389 } 390 } 391 } 392 393 static inline unsigned int rkcommon_offset_to_spi(unsigned int offset) 394 { 395 /* 396 * While SD/MMC images use a flat addressing, SPI images are padded 397 * to use the first 2K of every 4K sector only. 398 */ 399 return ((offset & ~0x7ff) << 1) + (offset & 0x7ff); 400 } 401 402 static int rkcommon_parse_header(const void *buf, struct header0_info *header0, 403 struct spl_info **spl_info) 404 { 405 unsigned int hdr1_offset; 406 struct header1_info *hdr1_sdmmc, *hdr1_spi; 407 int i; 408 409 if (spl_info) 410 *spl_info = NULL; 411 412 /* 413 * The first header (hdr0) is always RC4 encoded, so try to decrypt 414 * with the well-known key. 415 */ 416 memcpy((void *)header0, buf, sizeof(struct header0_info)); 417 rc4_encode((void *)header0, sizeof(struct header0_info), rc4_key); 418 419 if (header0->magic != RK_MAGIC) 420 return -EPROTO; 421 422 /* We don't support RC4 encoded image payloads here, yet... */ 423 if (header0->disable_rc4 == 0) 424 return -ENOSYS; 425 426 hdr1_offset = header0->init_offset * RK_BLK_SIZE; 427 hdr1_sdmmc = (struct header1_info *)(buf + hdr1_offset); 428 hdr1_spi = (struct header1_info *)(buf + 429 rkcommon_offset_to_spi(hdr1_offset)); 430 431 for (i = 0; i < ARRAY_SIZE(spl_infos); i++) { 432 if (!memcmp(&hdr1_sdmmc->magic, spl_infos[i].spl_hdr, 4)) { 433 if (spl_info) 434 *spl_info = &spl_infos[i]; 435 return IH_TYPE_RKSD; 436 } else if (!memcmp(&hdr1_spi->magic, spl_infos[i].spl_hdr, 4)) { 437 if (spl_info) 438 *spl_info = &spl_infos[i]; 439 return IH_TYPE_RKSPI; 440 } 441 } 442 443 return -1; 444 } 445 446 static int rkcommon_parse_header_v2(const void *buf, struct header0_info_v2 *header) 447 { 448 memcpy((void *)header, buf, sizeof(struct header0_info_v2)); 449 450 if (le32_to_cpu(header->magic) != RK_MAGIC_V2) 451 return -EPROTO; 452 453 return 0; 454 } 455 456 int rkcommon_verify_header(unsigned char *buf, int size, 457 struct image_tool_params *params) 458 { 459 struct header0_info header0; 460 struct spl_info *img_spl_info, *spl_info; 461 int ret; 462 463 /* spl_hdr is abandon on header_v2 */ 464 if ((*(uint32_t *)buf) == RK_MAGIC_V2) 465 return 0; 466 467 ret = rkcommon_parse_header(buf, &header0, &img_spl_info); 468 469 /* If this is the (unimplemented) RC4 case, then rewrite the result */ 470 if (ret == -ENOSYS) 471 return 0; 472 473 if (ret < 0) 474 return ret; 475 476 /* 477 * If no 'imagename' is specified via the commandline (e.g. if this is 478 * 'dumpimage -l' w/o any further constraints), we accept any spl_info. 479 */ 480 if (params->imagename == NULL) 481 return 0; 482 483 /* Match the 'imagename' against the 'spl_hdr' found */ 484 spl_info = rkcommon_get_spl_info(params->imagename); 485 if (spl_info && img_spl_info) 486 return strcmp(spl_info->spl_hdr, img_spl_info->spl_hdr); 487 488 return -ENOENT; 489 } 490 491 void rkcommon_print_header(const void *buf) 492 { 493 struct header0_info header0; 494 struct header0_info_v2 header0_v2; 495 struct spl_info *spl_info; 496 uint8_t image_type; 497 int ret, boot_size, init_size; 498 499 if ((*(uint32_t *)buf) == RK_MAGIC_V2) { 500 ret = rkcommon_parse_header_v2(buf, &header0_v2); 501 502 if (ret < 0) { 503 fprintf(stderr, "Error: image verification failed\n"); 504 return; 505 } 506 507 init_size = header0_v2.images[0].size_and_off >> 16; 508 init_size = init_size * RK_BLK_SIZE; 509 boot_size = header0_v2.images[1].size_and_off >> 16; 510 boot_size = boot_size * RK_BLK_SIZE; 511 } else { 512 ret = rkcommon_parse_header(buf, &header0, &spl_info); 513 514 /* If this is the (unimplemented) RC4 case, then fail silently */ 515 if (ret == -ENOSYS) 516 return; 517 518 if (ret < 0) { 519 fprintf(stderr, "Error: image verification failed\n"); 520 return; 521 } 522 523 image_type = ret; 524 init_size = header0.init_size * RK_BLK_SIZE; 525 boot_size = header0.init_boot_size * RK_BLK_SIZE - init_size; 526 printf("Image Type: Rockchip %s (%s) boot image\n", 527 spl_info->spl_hdr, 528 (image_type == IH_TYPE_RKSD) ? "SD/MMC" : "SPI"); 529 } 530 531 printf("Init Data Size: %d bytes\n", init_size); 532 533 if (boot_size != RK_MAX_BOOT_SIZE) 534 printf("Boot Data Size: %d bytes\n", boot_size); 535 } 536 537 void rkcommon_rc4_encode_spl(void *buf, unsigned int offset, unsigned int size) 538 { 539 unsigned int remaining = size; 540 541 while (remaining > 0) { 542 int step = (remaining > RK_BLK_SIZE) ? RK_BLK_SIZE : remaining; 543 544 rc4_encode(buf + offset, step, rc4_key); 545 offset += RK_BLK_SIZE; 546 remaining -= step; 547 } 548 } 549 550 int rkcommon_vrec_header(struct image_tool_params *params, 551 struct image_type_params *tparams) 552 { 553 /* 554 * The SPL image looks as follows: 555 * 556 * 0x0 header0 (see rkcommon.c) 557 * 0x800 spl_name ('RK30', ..., 'RK33') 558 * (start of the payload for AArch64 payloads: we expect the 559 * first 4 bytes to be available for overwriting with our 560 * spl_name) 561 * 0x804 first instruction to be executed 562 * (start of the image/payload for 32bit payloads) 563 * 564 * For AArch64 (ARMv8) payloads, natural alignment (8-bytes) is 565 * required for its sections (so the image we receive needs to 566 * have the first 4 bytes reserved for the spl_name). Reserving 567 * these 4 bytes is done using the BOOT0_HOOK infrastructure. 568 * 569 * The header is always at 0x800 (as we now use a payload 570 * prepadded using the boot0 hook for all targets): the first 571 * 4 bytes of these images can safely be overwritten using the 572 * boot magic. 573 */ 574 tparams->header_size = RK_SPL_HDR_START; 575 576 /* Allocate, clear and install the header */ 577 tparams->hdr = malloc(tparams->header_size); 578 if (!tparams->hdr) { 579 fprintf(stderr, "%s: Can't alloc header: %s\n", 580 params->cmdname, strerror(errno)); 581 exit(EXIT_FAILURE); 582 } 583 memset(tparams->hdr, 0, tparams->header_size); 584 585 /* 586 * We need to store the original file-size (i.e. before padding), as 587 * imagetool does not set this during its adjustment of file_size. 588 */ 589 params->orig_file_size = tparams->header_size + 590 spl_params.init_size + spl_params.boot_size; 591 592 params->file_size = ROUND(params->orig_file_size, RK_SIZE_ALIGN); 593 594 /* Ignoring pad len, since we are using our own copy_image() */ 595 return 0; 596 } 597 598 static int pad_file(struct image_tool_params *params, int ifd, int pad) 599 { 600 uint8_t zeros[4096]; 601 602 memset(zeros, 0, sizeof(zeros)); 603 604 while (pad > 0) { 605 int todo = sizeof(zeros); 606 607 if (todo > pad) 608 todo = pad; 609 if (write(ifd, (char *)&zeros, todo) != todo) { 610 fprintf(stderr, "%s: Write error on %s: %s\n", 611 params->cmdname, params->imagefile, 612 strerror(errno)); 613 return -1; 614 } 615 pad -= todo; 616 } 617 618 return 0; 619 } 620 621 static int copy_file(struct image_tool_params *params, int ifd, 622 const char *file, int padded_size) 623 { 624 int dfd; 625 struct stat sbuf; 626 unsigned char *ptr; 627 int size; 628 629 if (params->vflag) 630 fprintf(stderr, "Adding Image %s\n", file); 631 632 dfd = open(file, O_RDONLY | O_BINARY); 633 if (dfd < 0) { 634 fprintf(stderr, "%s: Can't open %s: %s\n", 635 params->cmdname, file, strerror(errno)); 636 return -1; 637 } 638 639 if (fstat(dfd, &sbuf) < 0) { 640 fprintf(stderr, "%s: Can't stat %s: %s\n", 641 params->cmdname, file, strerror(errno)); 642 goto err_close; 643 } 644 645 if (params->vflag) 646 fprintf(stderr, "Size %u(pad to %u)\n", 647 (int)sbuf.st_size, padded_size); 648 649 ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0); 650 if (ptr == MAP_FAILED) { 651 fprintf(stderr, "%s: Can't read %s: %s\n", 652 params->cmdname, file, strerror(errno)); 653 goto err_munmap; 654 } 655 656 size = sbuf.st_size; 657 if (write(ifd, ptr, size) != size) { 658 fprintf(stderr, "%s: Write error on %s: %s\n", 659 params->cmdname, params->imagefile, strerror(errno)); 660 goto err_munmap; 661 } 662 663 munmap((void *)ptr, sbuf.st_size); 664 close(dfd); 665 return pad_file(params, ifd, padded_size - size); 666 667 err_munmap: 668 munmap((void *)ptr, sbuf.st_size); 669 err_close: 670 close(dfd); 671 return -1; 672 } 673 674 int rockchip_copy_image(int ifd, struct image_tool_params *params) 675 { 676 int ret; 677 678 ret = copy_file(params, ifd, spl_params.init_file, 679 spl_params.init_size); 680 if (ret) 681 return ret; 682 683 if (spl_params.boot_file) { 684 ret = copy_file(params, ifd, spl_params.boot_file, 685 spl_params.boot_size); 686 if (ret) 687 return ret; 688 } 689 690 return pad_file(params, ifd, 691 params->file_size - params->orig_file_size); 692 } 693