tools/mkimage.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2008 Semihalf
   4  *
   5  * (C) Copyright 2000-2009
   6  * DENX Software Engineering
   7  * Wolfgang Denk, wd@denx.de
   8  */
   9
  10 #include "imagetool.h"
  11 #include "mkimage.h"
  12 #include "imximage.h"
  13 #include <image.h>
  14 #include <version.h>
  15 #ifdef __linux__
  16 #include <sys/ioctl.h>
  17 #endif
  18
  19 static void copy_file(int, const char *, int);
  20
  21 /* parameters initialized by core will be used by the image type code */
  22 static struct image_tool_params params = {
  23         .os = IH_OS_LINUX,
  24         .arch = IH_ARCH_PPC,
  25         .type = IH_TYPE_KERNEL,
  26         .comp = IH_COMP_GZIP,
  27         .dtc = MKIMAGE_DEFAULT_DTC_OPTIONS,
  28         .imagename = "",
  29         .imagename2 = "",
  30 };
  31
  32 static enum ih_category cur_category;
  33
  34 static int h_compare_category_name(const void *vtype1, const void *vtype2)
  35 {
  36         const int *type1 = vtype1;
  37         const int *type2 = vtype2;
  38         const char *name1 = genimg_get_cat_short_name(cur_category, *type1);
  39         const char *name2 = genimg_get_cat_short_name(cur_category, *type2);
  40
  41         return strcmp(name1, name2);
  42 }
  43
  44 static int show_valid_options(enum ih_category category)
  45 {
  46         int *order;
  47         int count;
  48         int item;
  49         int i;
  50
  51         count = genimg_get_cat_count(category);
  52         order = calloc(count, sizeof(*order));
  53         if (!order)
  54                 return -ENOMEM;
  55
  56         /* Sort the names in order of short name for easier reading */
  57         for (i = 0, item = 0; i < count; i++, item++) {
  58                 while (!genimg_cat_has_id(category, item) && i < count) {
  59                         item++;
  60                         count--;
  61                 }
  62                 order[i] = item;
  63         }
  64         cur_category = category;
  65         qsort(order, count, sizeof(int), h_compare_category_name);
  66
  67         fprintf(stderr, "\nInvalid %s, supported are:\n",
  68                 genimg_get_cat_desc(category));
  69         for (i = 0; i < count; i++) {
  70                 item = order[i];
  71                 fprintf(stderr, "\t%-15s  %s\n",
  72                         genimg_get_cat_short_name(category, item),
  73                         genimg_get_cat_name(category, item));
  74         }
  75         fprintf(stderr, "\n");
  76         free(order);
  77
  78         return 0;
  79 }
  80
  81 static void usage(const char *msg)
  82 {
  83         fprintf(stderr, "Error: %s\n", msg);
  84         fprintf(stderr, "Usage: %s -l image\n"
  85                          "          -l ==> list image header information\n",
  86                 params.cmdname);
  87         fprintf(stderr,
  88                 "       %s [-x] -A arch -O os -T type -C comp -a addr -e ep -n name -d data_file[:data_file...] image\n"
  89                 "          -A ==> set architecture to 'arch'\n"
  90                 "          -O ==> set operating system to 'os'\n"
  91                 "          -T ==> set image type to 'type'\n"
  92                 "          -C ==> set compression type 'comp'\n"
  93                 "          -a ==> set load address to 'addr' (hex)\n"
  94                 "          -e ==> set entry point to 'ep' (hex)\n"
  95                 "          -n ==> set image name to 'name'\n"
  96                 "          -d ==> use image data from 'datafile'\n"
  97                 "          -x ==> set XIP (execute in place)\n",
  98                 params.cmdname);
  99         fprintf(stderr,
 100                 "       %s [-D dtc_options] [-f fit-image.its|-f auto|-F] [-b <dtb> [-b <dtb>]] [-E] [-B size] [-i <ramdisk.cpio.gz>] fit-image\n"
 101                 "           <dtb> file is used with -f auto, it may occur multiple times.\n",
 102                 params.cmdname);
 103         fprintf(stderr,
 104                 "          -D => set all options for device tree compiler\n"
 105                 "          -f => input filename for FIT source\n"
 106                 "          -i => input filename for ramdisk file\n"
 107                 "          -E => place data outside of the FIT structure\n"
 108                 "          -B => align size in hex for FIT structure and header\n");
 109 #ifdef CONFIG_FIT_SIGNATURE
 110         fprintf(stderr,
 111                 "Signing / verified boot options: [-k keydir] [-K dtb] [ -c <comment>] [-p addr] [-r] [-N engine]\n"
 112                 "          -k => set directory containing private keys\n"
 113                 "          -K => write public keys to this .dtb file\n"
 114                 "          -G => use this signing key (in lieu of -k)\n"
 115                 "          -c => add comment in signature node\n"
 116                 "          -F => re-sign existing FIT image\n"
 117                 "          -p => place external data at a static position\n"
 118                 "          -r => mark keys used as 'required' in dtb\n"
 119                 "          -N => openssl engine to use for signing\n");
 120 #else
 121         fprintf(stderr,
 122                 "Signing / verified boot not supported (CONFIG_FIT_SIGNATURE undefined)\n");
 123 #endif
 124         fprintf(stderr, "       %s -V ==> print version information and exit\n",
 125                 params.cmdname);
 126         fprintf(stderr, "Use '-T list' to see a list of available image types\n");
 127
 128         exit(EXIT_FAILURE);
 129 }
 130
 131 static int add_content(int type, const char *fname)
 132 {
 133         struct content_info *cont;
 134
 135         cont = calloc(1, sizeof(*cont));
 136         if (!cont)
 137                 return -1;
 138         cont->type = type;
 139         cont->fname = fname;
 140         if (params.content_tail)
 141                 params.content_tail->next = cont;
 142         else
 143                 params.content_head = cont;
 144         params.content_tail = cont;
 145
 146         return 0;
 147 }
 148
 149 static void process_args(int argc, char **argv)
 150 {
 151         char *ptr;
 152         int type = IH_TYPE_INVALID;
 153         char *datafile = NULL;
 154         int opt;
 155
 156         while ((opt = getopt(argc, argv,
 157                    "a:A:b:B:c:C:d:D:e:Ef:FG:k:i:K:ln:N:p:o:O:rR:qstT:vVx")) != -1) {
 158                 switch (opt) {
 159                 case 'a':
 160                         params.addr = strtoull(optarg, &ptr, 16);
 161                         if (*ptr) {
 162                                 fprintf(stderr, "%s: invalid load address %s\n",
 163                                         params.cmdname, optarg);
 164                                 exit(EXIT_FAILURE);
 165                         }
 166                         break;
 167                 case 'A':
 168                         params.arch = genimg_get_arch_id(optarg);
 169                         if (params.arch < 0) {
 170                                 show_valid_options(IH_ARCH);
 171                                 usage("Invalid architecture");
 172                         }
 173                         break;
 174                 case 'b':
 175                         if (add_content(IH_TYPE_FLATDT, optarg)) {
 176                                 fprintf(stderr,
 177                                         "%s: Out of memory adding content '%s'",
 178                                         params.cmdname, optarg);
 179                                 exit(EXIT_FAILURE);
 180                         }
 181                         break;
 182                 case 'B':
 183                         params.bl_len = strtoull(optarg, &ptr, 16);
 184                         if (*ptr) {
 185                                 fprintf(stderr, "%s: invalid block length %s\n",
 186                                         params.cmdname, optarg);
 187                                 exit(EXIT_FAILURE);
 188                         }
 189
 190                         break;
 191                 case 'c':
 192                         params.comment = optarg;
 193                         break;
 194                 case 'C':
 195                         params.comp = genimg_get_comp_id(optarg);
 196                         if (params.comp < 0) {
 197                                 show_valid_options(IH_COMP);
 198                                 usage("Invalid compression type");
 199                         }
 200                         break;
 201                 case 'd':
 202                         params.datafile = optarg;
 203                         params.dflag = 1;
 204                         break;
 205                 case 'D':
 206                         params.dtc = optarg;
 207                         break;
 208                 case 'e':
 209                         params.ep = strtoull(optarg, &ptr, 16);
 210                         if (*ptr) {
 211                                 fprintf(stderr, "%s: invalid entry point %s\n",
 212                                         params.cmdname, optarg);
 213                                 exit(EXIT_FAILURE);
 214                         }
 215                         params.eflag = 1;
 216                         break;
 217                 case 'E':
 218                         params.external_data = true;
 219                         break;
 220                 case 'f':
 221                         datafile = optarg;
 222                         params.auto_its = !strcmp(datafile, "auto");
 223                         /* fallthrough */
 224                 case 'F':
 225                         /*
 226                          * The flattened image tree (FIT) format
 227                          * requires a flattened device tree image type
 228                          */
 229                         params.type = IH_TYPE_FLATDT;
 230                         params.fflag = 1;
 231                         break;
 232                 case 'G':
 233                         params.keyfile = optarg;
 234                         break;
 235                 case 'i':
 236                         params.fit_ramdisk = optarg;
 237                         break;
 238                 case 'k':
 239                         params.keydir = optarg;
 240                         break;
 241                 case 'K':
 242                         params.keydest = optarg;
 243                         break;
 244                 case 'l':
 245                         params.lflag = 1;
 246                         break;
 247                 case 'n':
 248                         params.imagename = optarg;
 249                         break;
 250                 case 'N':
 251                         params.engine_id = optarg;
 252                         break;
 253                 case 'o':
 254                         params.algo_name = optarg;
 255                         break;
 256                 case 'O':
 257                         params.os = genimg_get_os_id(optarg);
 258                         if (params.os < 0) {
 259                                 show_valid_options(IH_OS);
 260                                 usage("Invalid operating system");
 261                         }
 262                         break;
 263                 case 'p':
 264                         params.external_offset = strtoull(optarg, &ptr, 16);
 265                         if (*ptr) {
 266                                 fprintf(stderr, "%s: invalid offset size %s\n",
 267                                         params.cmdname, optarg);
 268                                 exit(EXIT_FAILURE);
 269                         }
 270                         break;
 271                 case 'q':
 272                         params.quiet = 1;
 273                         break;
 274                 case 'r':
 275                         params.require_keys = 1;
 276                         break;
 277                 case 'R':
 278                         /*
 279                          * This entry is for the second configuration
 280                          * file, if only one is not enough.
 281                          */
 282                         params.imagename2 = optarg;
 283                         break;
 284                 case 's':
 285                         params.skipcpy = 1;
 286                         break;
 287                 case 't':
 288                         params.reset_timestamp = 1;
 289                         break;
 290                 case 'T':
 291                         if (strcmp(optarg, "list") == 0) {
 292                                 show_valid_options(IH_TYPE);
 293                                 exit(EXIT_SUCCESS);
 294                         }
 295                         type = genimg_get_type_id(optarg);
 296                         if (type < 0) {
 297                                 show_valid_options(IH_TYPE);
 298                                 usage("Invalid image type");
 299                         }
 300                         break;
 301                 case 'v':
 302                         params.vflag++;
 303                         break;
 304                 case 'V':
 305                         printf("mkimage version %s\n", PLAIN_VERSION);
 306                         exit(EXIT_SUCCESS);
 307                 case 'x':
 308                         params.xflag++;
 309                         break;
 310                 default:
 311                         usage("Invalid option");
 312                 }
 313         }
 314
 315         /* The last parameter is expected to be the imagefile */
 316         if (optind < argc)
 317                 params.imagefile = argv[optind];
 318
 319         /*
 320          * For auto-generated FIT images we need to know the image type to put
 321          * in the FIT, which is separate from the file's image type (which
 322          * will always be IH_TYPE_FLATDT in this case).
 323          */
 324         if (params.type == IH_TYPE_FLATDT) {
 325                 params.fit_image_type = type ? type : IH_TYPE_KERNEL;
 326                 /* For auto_its, datafile is always 'auto' */
 327                 if (!params.auto_its)
 328                         params.datafile = datafile;
 329                 else if (!params.datafile)
 330                         usage("Missing data file for auto-FIT (use -d)");
 331         } else if (type != IH_TYPE_INVALID) {
 332                 if (type == IH_TYPE_SCRIPT && !params.datafile)
 333                         usage("Missing data file for script (use -d)");
 334                 params.type = type;
 335         }
 336
 337         if (!params.imagefile)
 338                 usage("Missing output filename");
 339 }
 340
 341 int main(int argc, char **argv)
 342 {
 343         int ifd = -1;
 344         struct stat sbuf;
 345         char *ptr;
 346         int retval = 0;
 347         struct image_type_params *tparams = NULL;
 348         int pad_len = 0;
 349         int dfd;
 350         size_t map_len;
 351
 352         params.cmdname = *argv;
 353         params.addr = 0;
 354         params.ep = 0;
 355
 356         process_args(argc, argv);
 357
 358         /* set tparams as per input type_id */
 359         tparams = imagetool_get_type(params.type);
 360         if (tparams == NULL) {
 361                 fprintf (stderr, "%s: unsupported type %s\n",
 362                         params.cmdname, genimg_get_type_name(params.type));
 363                 exit (EXIT_FAILURE);
 364         }
 365
 366         /*
 367          * check the passed arguments parameters meets the requirements
 368          * as per image type to be generated/listed
 369          */
 370         if (tparams->check_params)
 371                 if (tparams->check_params (&params))
 372                         usage("Bad parameters for image type");
 373
 374         if (!params.eflag) {
 375                 params.ep = params.addr;
 376                 /* If XIP, entry point must be after the U-Boot header */
 377                 if (params.xflag)
 378                         params.ep += tparams->header_size;
 379         }
 380
 381         if (params.fflag){
 382                 if (tparams->fflag_handle)
 383                         /*
 384                          * in some cases, some additional processing needs
 385                          * to be done if fflag is defined
 386                          *
 387                          * For ex. fit_handle_file for Fit file support
 388                          */
 389                         retval = tparams->fflag_handle(&params);
 390
 391                 if (retval != EXIT_SUCCESS)
 392                         exit (retval);
 393         }
 394
 395         if (params.lflag || params.fflag) {
 396                 ifd = open (params.imagefile, O_RDONLY|O_BINARY);
 397         } else {
 398                 ifd = open (params.imagefile,
 399                         O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666);
 400         }
 401
 402         if (ifd < 0) {
 403                 fprintf (stderr, "%s: Can't open %s: %s\n",
 404                         params.cmdname, params.imagefile,
 405                         strerror(errno));
 406                 exit (EXIT_FAILURE);
 407         }
 408
 409         if (params.lflag || params.fflag) {
 410                 uint64_t size;
 411                 /*
 412                  * list header information of existing image
 413                  */
 414                 if (fstat(ifd, &sbuf) < 0) {
 415                         fprintf (stderr, "%s: Can't stat %s: %s\n",
 416                                 params.cmdname, params.imagefile,
 417                                 strerror(errno));
 418                         exit (EXIT_FAILURE);
 419                 }
 420
 421                 if ((sbuf.st_mode & S_IFMT) == S_IFBLK) {
 422 #ifdef __linux__
 423 #if defined(__linux__) && defined(_IOR) && !defined(BLKGETSIZE64)
 424 #define BLKGETSIZE64 _IOR(0x12,114,size_t)      /* return device size in bytes (u64 *arg) */
 425 #endif
 426                         if (ioctl(ifd, BLKGETSIZE64, &size) < 0) {
 427                                 fprintf (stderr,
 428                                         "%s: failed to get size of block device \"%s\"\n",
 429                                         params.cmdname, params.imagefile);
 430                                 exit (EXIT_FAILURE);
 431                         }
 432 #else
 433                         fprintf (stderr,
 434                                 "%s: \"%s\" is block device, don't know how to get its size\n",
 435                                 params.cmdname, params.imagefile);
 436                         exit (EXIT_FAILURE);
 437 #endif
 438                 } else if (sbuf.st_size < (off_t)tparams->header_size) {
 439                         fprintf (stderr,
 440                                 "%s: Bad size: \"%s\" is not valid image: size %llu < %u\n",
 441                                 params.cmdname, params.imagefile,
 442                                 (unsigned long long) sbuf.st_size,
 443                                 tparams->header_size);
 444                         exit (EXIT_FAILURE);
 445                 } else {
 446                         size = sbuf.st_size;
 447                 }
 448
 449                 ptr = mmap(0, size, PROT_READ, MAP_SHARED, ifd, 0);
 450                 if (ptr == MAP_FAILED) {
 451                         fprintf (stderr, "%s: Can't read %s: %s\n",
 452                                 params.cmdname, params.imagefile,
 453                                 strerror(errno));
 454                         exit (EXIT_FAILURE);
 455                 }
 456
 457                 if (params.fflag) {
 458                         /*
 459                          * Verifies the header format based on the expected header for image
 460                          * type in tparams
 461                          */
 462                         retval = imagetool_verify_print_header_by_type(ptr, &sbuf,
 463                                         tparams, &params);
 464                 } else {
 465                         /**
 466                          * When listing the image, we are not given the image type. Simply check all
 467                          * image types to find one that matches our header
 468                          */
 469                         retval = imagetool_verify_print_header(ptr, &sbuf,
 470                                         tparams, &params);
 471                 }
 472
 473                 (void) munmap((void *)ptr, sbuf.st_size);
 474                 (void) close (ifd);
 475
 476                 exit (retval);
 477         }
 478
 479         if ((params.type != IH_TYPE_MULTI) && (params.type != IH_TYPE_SCRIPT)) {
 480                 dfd = open(params.datafile, O_RDONLY | O_BINARY);
 481                 if (dfd < 0) {
 482                         fprintf(stderr, "%s: Can't open %s: %s\n",
 483                                 params.cmdname, params.datafile,
 484                                 strerror(errno));
 485                         exit(EXIT_FAILURE);
 486                 }
 487
 488                 if (fstat(dfd, &sbuf) < 0) {
 489                         fprintf(stderr, "%s: Can't stat %s: %s\n",
 490                                 params.cmdname, params.datafile,
 491                                 strerror(errno));
 492                         exit(EXIT_FAILURE);
 493                 }
 494
 495                 params.file_size = sbuf.st_size + tparams->header_size;
 496                 close(dfd);
 497         }
 498
 499         /*
 500          * In case there an header with a variable
 501          * length will be added, the corresponding
 502          * function is called. This is responsible to
 503          * allocate memory for the header itself.
 504          */
 505         if (tparams->vrec_header)
 506                 pad_len = tparams->vrec_header(&params, tparams);
 507         else
 508                 memset(tparams->hdr, 0, tparams->header_size);
 509
 510         if (write(ifd, tparams->hdr, tparams->header_size)
 511                                         != tparams->header_size) {
 512                 fprintf (stderr, "%s: Write error on %s: %s\n",
 513                         params.cmdname, params.imagefile, strerror(errno));
 514                 exit (EXIT_FAILURE);
 515         }
 516
 517         if (!params.skipcpy) {
 518                 if (params.type == IH_TYPE_MULTI ||
 519                     params.type == IH_TYPE_SCRIPT) {
 520                         char *file = params.datafile;
 521                         uint32_t size;
 522
 523                         for (;;) {
 524                                 char *sep = NULL;
 525
 526                                 if (file) {
 527                                         if ((sep = strchr(file, ':')) != NULL) {
 528                                                 *sep = '\0';
 529                                         }
 530
 531                                         if (stat (file, &sbuf) < 0) {
 532                                                 fprintf (stderr, "%s: Can't stat %s: %s\n",
 533                                                          params.cmdname, file, strerror(errno));
 534                                                 exit (EXIT_FAILURE);
 535                                         }
 536                                         size = cpu_to_uimage (sbuf.st_size);
 537                                 } else {
 538                                         size = 0;
 539                                 }
 540
 541                                 if (write(ifd, (char *)&size, sizeof(size)) != sizeof(size)) {
 542                                         fprintf (stderr, "%s: Write error on %s: %s\n",
 543                                                  params.cmdname, params.imagefile,
 544                                                  strerror(errno));
 545                                         exit (EXIT_FAILURE);
 546                                 }
 547
 548                                 if (!file) {
 549                                         break;
 550                                 }
 551
 552                                 if (sep) {
 553                                         *sep = ':';
 554                                         file = sep + 1;
 555                                 } else {
 556                                         file = NULL;
 557                                 }
 558                         }
 559
 560                         file = params.datafile;
 561
 562                         for (;;) {
 563                                 char *sep = strchr(file, ':');
 564                                 if (sep) {
 565                                         *sep = '\0';
 566                                         copy_file (ifd, file, 1);
 567                                         *sep++ = ':';
 568                                         file = sep;
 569                                 } else {
 570                                         copy_file (ifd, file, 0);
 571                                         break;
 572                                 }
 573                         }
 574                 } else if (params.type == IH_TYPE_PBLIMAGE) {
 575                         /* PBL has special Image format, implements its' own */
 576                         pbl_load_uboot(ifd, &params);
 577                 } else if (params.type == IH_TYPE_ZYNQMPBIF) {
 578                         /* Image file is meta, walk through actual targets */
 579                         int ret;
 580
 581                         ret = zynqmpbif_copy_image(ifd, &params);
 582                         if (ret)
 583                                 return ret;
 584                 } else if (params.type == IH_TYPE_IMX8IMAGE) {
 585                         /* i.MX8/8X has special Image format */
 586                         int ret;
 587
 588                         ret = imx8image_copy_image(ifd, &params);
 589                         if (ret)
 590                                 return ret;
 591                 } else if (params.type == IH_TYPE_IMX8MIMAGE) {
 592                         /* i.MX8M has special Image format */
 593                         int ret;
 594
 595                         ret = imx8mimage_copy_image(ifd, &params);
 596                         if (ret)
 597                                 return ret;
 598                 } else if ((params.type == IH_TYPE_RKSD) ||
 599                                 (params.type == IH_TYPE_RKSPI)) {
 600                         /* Rockchip has special Image format */
 601                         int ret;
 602
 603                         ret = rockchip_copy_image(ifd, &params);
 604                         if (ret)
 605                                 return ret;
 606                 } else {
 607                         copy_file(ifd, params.datafile, pad_len);
 608                 }
 609                 if (params.type == IH_TYPE_FIRMWARE_IVT) {
 610                         /* Add alignment and IVT */
 611                         uint32_t aligned_filesize = ALIGN(params.file_size,
 612                                                           0x1000);
 613                         flash_header_v2_t ivt_header = { { 0xd1, 0x2000, 0x40 },
 614                                         params.addr, 0, 0, 0, params.addr
 615                                                         + aligned_filesize
 616                                                         - tparams->header_size,
 617                                         params.addr + aligned_filesize
 618                                                         - tparams->header_size
 619                                                         + 0x20, 0 };
 620                         int i = params.file_size;
 621                         for (; i < aligned_filesize; i++) {
 622                                 if (write(ifd, (char *) &i, 1) != 1) {
 623                                         fprintf(stderr,
 624                                                         "%s: Write error on %s: %s\n",
 625                                                         params.cmdname,
 626                                                         params.imagefile,
 627                                                         strerror(errno));
 628                                         exit(EXIT_FAILURE);
 629                                 }
 630                         }
 631                         if (write(ifd, &ivt_header, sizeof(flash_header_v2_t))
 632                                         != sizeof(flash_header_v2_t)) {
 633                                 fprintf(stderr, "%s: Write error on %s: %s\n",
 634                                                 params.cmdname,
 635                                                 params.imagefile,
 636                                                 strerror(errno));
 637                                 exit(EXIT_FAILURE);
 638                         }
 639                 }
 640         }
 641
 642         /* We're a bit of paranoid */
 643 #if defined(_POSIX_SYNCHRONIZED_IO) && \
 644    !defined(__sun__) && \
 645    !defined(__FreeBSD__) && \
 646    !defined(__OpenBSD__) && \
 647    !defined(__APPLE__)
 648         (void) fdatasync (ifd);
 649 #else
 650         (void) fsync (ifd);
 651 #endif
 652
 653         if (fstat(ifd, &sbuf) < 0) {
 654                 fprintf (stderr, "%s: Can't stat %s: %s\n",
 655                         params.cmdname, params.imagefile, strerror(errno));
 656                 exit (EXIT_FAILURE);
 657         }
 658         params.file_size = sbuf.st_size;
 659
 660         map_len = sbuf.st_size;
 661         ptr = mmap(0, map_len, PROT_READ | PROT_WRITE, MAP_SHARED, ifd, 0);
 662         if (ptr == MAP_FAILED) {
 663                 fprintf (stderr, "%s: Can't map %s: %s\n",
 664                         params.cmdname, params.imagefile, strerror(errno));
 665                 exit (EXIT_FAILURE);
 666         }
 667
 668         /* Setup the image header as per input image type*/
 669         if (tparams->set_header)
 670                 tparams->set_header (ptr, &sbuf, ifd, &params);
 671         else {
 672                 fprintf (stderr, "%s: Can't set header for %s: %s\n",
 673                         params.cmdname, tparams->name, strerror(errno));
 674                 exit (EXIT_FAILURE);
 675         }
 676
 677         /* Print the image information by processing image header */
 678         if (tparams->print_header)
 679                 tparams->print_header (ptr);
 680         else {
 681                 fprintf (stderr, "%s: Can't print header for %s\n",
 682                         params.cmdname, tparams->name);
 683         }
 684
 685         (void)munmap((void *)ptr, map_len);
 686
 687         /* We're a bit of paranoid */
 688 #if defined(_POSIX_SYNCHRONIZED_IO) && \
 689    !defined(__sun__) && \
 690    !defined(__FreeBSD__) && \
 691    !defined(__OpenBSD__) && \
 692    !defined(__APPLE__)
 693         (void) fdatasync (ifd);
 694 #else
 695         (void) fsync (ifd);
 696 #endif
 697
 698         if (close(ifd)) {
 699                 fprintf (stderr, "%s: Write error on %s: %s\n",
 700                         params.cmdname, params.imagefile, strerror(errno));
 701                 exit (EXIT_FAILURE);
 702         }
 703
 704         exit (EXIT_SUCCESS);
 705 }
 706
 707 static void
 708 copy_file (int ifd, const char *datafile, int pad)
 709 {
 710         int dfd;
 711         struct stat sbuf;
 712         unsigned char *ptr;
 713         int tail;
 714         int zero = 0;
 715         uint8_t zeros[4096];
 716         int offset = 0;
 717         int size, ret;
 718         struct image_type_params *tparams = imagetool_get_type(params.type);
 719
 720         memset(zeros, 0, sizeof(zeros));
 721
 722         if (params.vflag) {
 723                 fprintf (stderr, "Adding Image %s\n", datafile);
 724         }
 725
 726         if ((dfd = open(datafile, O_RDONLY|O_BINARY)) < 0) {
 727                 fprintf (stderr, "%s: Can't open %s: %s\n",
 728                         params.cmdname, datafile, strerror(errno));
 729                 exit (EXIT_FAILURE);
 730         }
 731
 732         if (fstat(dfd, &sbuf) < 0) {
 733                 fprintf (stderr, "%s: Can't stat %s: %s\n",
 734                         params.cmdname, datafile, strerror(errno));
 735                 exit (EXIT_FAILURE);
 736         }
 737
 738         if (sbuf.st_size == 0) {
 739                 fprintf (stderr, "%s: Input file %s is empty, bailing out\n",
 740                         params.cmdname, datafile);
 741                 exit (EXIT_FAILURE);
 742         }
 743
 744         ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
 745         if (ptr == MAP_FAILED) {
 746                 fprintf (stderr, "%s: Can't read %s: %s\n",
 747                         params.cmdname, datafile, strerror(errno));
 748                 exit (EXIT_FAILURE);
 749         }
 750
 751         if (params.xflag) {
 752                 unsigned char *p = NULL;
 753                 /*
 754                  * XIP: do not append the image_header_t at the
 755                  * beginning of the file, but consume the space
 756                  * reserved for it.
 757                  */
 758
 759                 if ((unsigned)sbuf.st_size < tparams->header_size) {
 760                         fprintf (stderr,
 761                                 "%s: Bad size: \"%s\" is too small for XIP\n",
 762                                 params.cmdname, datafile);
 763                         exit (EXIT_FAILURE);
 764                 }
 765
 766                 for (p = ptr; p < ptr + tparams->header_size; p++) {
 767                         if ( *p != 0xff ) {
 768                                 fprintf (stderr,
 769                                         "%s: Bad file: \"%s\" has invalid buffer for XIP\n",
 770                                         params.cmdname, datafile);
 771                                 exit (EXIT_FAILURE);
 772                         }
 773                 }
 774
 775                 offset = tparams->header_size;
 776         }
 777
 778         size = sbuf.st_size - offset;
 779
 780         ret = write(ifd, ptr + offset, size);
 781         if (ret != size) {
 782                 if (ret < 0)
 783                         fprintf (stderr, "%s: Write error on %s: %s\n",
 784                                  params.cmdname, params.imagefile, strerror(errno));
 785                 else if (ret < size)
 786                         fprintf (stderr, "%s: Write only %d/%d bytes, "\
 787                                  "probably no space left on the device\n",
 788                                  params.cmdname, ret, size);
 789                 exit (EXIT_FAILURE);
 790         }
 791
 792         tail = size % 4;
 793         if ((pad == 1) && (tail != 0)) {
 794
 795                 if (write(ifd, (char *)&zero, 4-tail) != 4-tail) {
 796                         fprintf (stderr, "%s: Write error on %s: %s\n",
 797                                 params.cmdname, params.imagefile,
 798                                 strerror(errno));
 799                         exit (EXIT_FAILURE);
 800                 }
 801         } else if (pad > 1) {
 802                 while (pad > 0) {
 803                         int todo = sizeof(zeros);
 804
 805                         if (todo > pad)
 806                                 todo = pad;
 807                         if (write(ifd, (char *)&zeros, todo) != todo) {
 808                                 fprintf(stderr, "%s: Write error on %s: %s\n",
 809                                         params.cmdname, params.imagefile,
 810                                         strerror(errno));
 811                                 exit(EXIT_FAILURE);
 812                         }
 813                         pad -= todo;
 814                 }
 815         }
 816
 817         (void) munmap((void *)ptr, sbuf.st_size);
 818         (void) close (dfd);
 819 }