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: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.os = genimg_get_os_id(optarg);
 255                         if (params.os < 0) {
 256                                 show_valid_options(IH_OS);
 257                                 usage("Invalid operating system");
 258                         }
 259                         break;
 260                 case 'p':
 261                         params.external_offset = strtoull(optarg, &ptr, 16);
 262                         if (*ptr) {
 263                                 fprintf(stderr, "%s: invalid offset size %s\n",
 264                                         params.cmdname, optarg);
 265                                 exit(EXIT_FAILURE);
 266                         }
 267                         break;
 268                 case 'q':
 269                         params.quiet = 1;
 270                         break;
 271                 case 'r':
 272                         params.require_keys = 1;
 273                         break;
 274                 case 'R':
 275                         /*
 276                          * This entry is for the second configuration
 277                          * file, if only one is not enough.
 278                          */
 279                         params.imagename2 = optarg;
 280                         break;
 281                 case 's':
 282                         params.skipcpy = 1;
 283                         break;
 284                 case 't':
 285                         params.reset_timestamp = 1;
 286                         break;
 287                 case 'T':
 288                         if (strcmp(optarg, "list") == 0) {
 289                                 show_valid_options(IH_TYPE);
 290                                 exit(EXIT_SUCCESS);
 291                         }
 292                         type = genimg_get_type_id(optarg);
 293                         if (type < 0) {
 294                                 show_valid_options(IH_TYPE);
 295                                 usage("Invalid image type");
 296                         }
 297                         break;
 298                 case 'v':
 299                         params.vflag++;
 300                         break;
 301                 case 'V':
 302                         printf("mkimage version %s\n", PLAIN_VERSION);
 303                         exit(EXIT_SUCCESS);
 304                 case 'x':
 305                         params.xflag++;
 306                         break;
 307                 default:
 308                         usage("Invalid option");
 309                 }
 310         }
 311
 312         /* The last parameter is expected to be the imagefile */
 313         if (optind < argc)
 314                 params.imagefile = argv[optind];
 315
 316         /*
 317          * For auto-generated FIT images we need to know the image type to put
 318          * in the FIT, which is separate from the file's image type (which
 319          * will always be IH_TYPE_FLATDT in this case).
 320          */
 321         if (params.type == IH_TYPE_FLATDT) {
 322                 params.fit_image_type = type ? type : IH_TYPE_KERNEL;
 323                 /* For auto_its, datafile is always 'auto' */
 324                 if (!params.auto_its)
 325                         params.datafile = datafile;
 326                 else if (!params.datafile)
 327                         usage("Missing data file for auto-FIT (use -d)");
 328         } else if (type != IH_TYPE_INVALID) {
 329                 if (type == IH_TYPE_SCRIPT && !params.datafile)
 330                         usage("Missing data file for script (use -d)");
 331                 params.type = type;
 332         }
 333
 334         if (!params.imagefile)
 335                 usage("Missing output filename");
 336 }
 337
 338 int main(int argc, char **argv)
 339 {
 340         int ifd = -1;
 341         struct stat sbuf;
 342         char *ptr;
 343         int retval = 0;
 344         struct image_type_params *tparams = NULL;
 345         int pad_len = 0;
 346         int dfd;
 347         size_t map_len;
 348
 349         params.cmdname = *argv;
 350         params.addr = 0;
 351         params.ep = 0;
 352
 353         process_args(argc, argv);
 354
 355         /* set tparams as per input type_id */
 356         tparams = imagetool_get_type(params.type);
 357         if (tparams == NULL) {
 358                 fprintf (stderr, "%s: unsupported type %s\n",
 359                         params.cmdname, genimg_get_type_name(params.type));
 360                 exit (EXIT_FAILURE);
 361         }
 362
 363         /*
 364          * check the passed arguments parameters meets the requirements
 365          * as per image type to be generated/listed
 366          */
 367         if (tparams->check_params)
 368                 if (tparams->check_params (&params))
 369                         usage("Bad parameters for image type");
 370
 371         if (!params.eflag) {
 372                 params.ep = params.addr;
 373                 /* If XIP, entry point must be after the U-Boot header */
 374                 if (params.xflag)
 375                         params.ep += tparams->header_size;
 376         }
 377
 378         if (params.fflag){
 379                 if (tparams->fflag_handle)
 380                         /*
 381                          * in some cases, some additional processing needs
 382                          * to be done if fflag is defined
 383                          *
 384                          * For ex. fit_handle_file for Fit file support
 385                          */
 386                         retval = tparams->fflag_handle(&params);
 387
 388                 if (retval != EXIT_SUCCESS)
 389                         exit (retval);
 390         }
 391
 392         if (params.lflag || params.fflag) {
 393                 ifd = open (params.imagefile, O_RDONLY|O_BINARY);
 394         } else {
 395                 ifd = open (params.imagefile,
 396                         O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666);
 397         }
 398
 399         if (ifd < 0) {
 400                 fprintf (stderr, "%s: Can't open %s: %s\n",
 401                         params.cmdname, params.imagefile,
 402                         strerror(errno));
 403                 exit (EXIT_FAILURE);
 404         }
 405
 406         if (params.lflag || params.fflag) {
 407                 uint64_t size;
 408                 /*
 409                  * list header information of existing image
 410                  */
 411                 if (fstat(ifd, &sbuf) < 0) {
 412                         fprintf (stderr, "%s: Can't stat %s: %s\n",
 413                                 params.cmdname, params.imagefile,
 414                                 strerror(errno));
 415                         exit (EXIT_FAILURE);
 416                 }
 417
 418                 if ((sbuf.st_mode & S_IFMT) == S_IFBLK) {
 419 #ifdef __linux__
 420 #if defined(__linux__) && defined(_IOR) && !defined(BLKGETSIZE64)
 421 #define BLKGETSIZE64 _IOR(0x12,114,size_t)      /* return device size in bytes (u64 *arg) */
 422 #endif
 423                         if (ioctl(ifd, BLKGETSIZE64, &size) < 0) {
 424                                 fprintf (stderr,
 425                                         "%s: failed to get size of block device \"%s\"\n",
 426                                         params.cmdname, params.imagefile);
 427                                 exit (EXIT_FAILURE);
 428                         }
 429 #else
 430                         fprintf (stderr,
 431                                 "%s: \"%s\" is block device, don't know how to get its size\n",
 432                                 params.cmdname, params.imagefile);
 433                         exit (EXIT_FAILURE);
 434 #endif
 435                 } else if ((unsigned)sbuf.st_size < tparams->header_size) {
 436                         fprintf (stderr,
 437                                 "%s: Bad size: \"%s\" is not valid image: size %ld < %u\n",
 438                                 params.cmdname, params.imagefile,
 439                                 sbuf.st_size, tparams->header_size);
 440                         exit (EXIT_FAILURE);
 441                 } else {
 442                         size = sbuf.st_size;
 443                 }
 444
 445                 ptr = mmap(0, size, PROT_READ, MAP_SHARED, ifd, 0);
 446                 if (ptr == MAP_FAILED) {
 447                         fprintf (stderr, "%s: Can't read %s: %s\n",
 448                                 params.cmdname, params.imagefile,
 449                                 strerror(errno));
 450                         exit (EXIT_FAILURE);
 451                 }
 452
 453                 if (params.fflag) {
 454                         /*
 455                          * Verifies the header format based on the expected header for image
 456                          * type in tparams
 457                          */
 458                         retval = imagetool_verify_print_header_by_type(ptr, &sbuf,
 459                                         tparams, &params);
 460                 } else {
 461                         /**
 462                          * When listing the image, we are not given the image type. Simply check all
 463                          * image types to find one that matches our header
 464                          */
 465                         retval = imagetool_verify_print_header(ptr, &sbuf,
 466                                         tparams, &params);
 467                 }
 468
 469                 (void) munmap((void *)ptr, sbuf.st_size);
 470                 (void) close (ifd);
 471
 472                 exit (retval);
 473         }
 474
 475         if ((params.type != IH_TYPE_MULTI) && (params.type != IH_TYPE_SCRIPT)) {
 476                 dfd = open(params.datafile, O_RDONLY | O_BINARY);
 477                 if (dfd < 0) {
 478                         fprintf(stderr, "%s: Can't open %s: %s\n",
 479                                 params.cmdname, params.datafile,
 480                                 strerror(errno));
 481                         exit(EXIT_FAILURE);
 482                 }
 483
 484                 if (fstat(dfd, &sbuf) < 0) {
 485                         fprintf(stderr, "%s: Can't stat %s: %s\n",
 486                                 params.cmdname, params.datafile,
 487                                 strerror(errno));
 488                         exit(EXIT_FAILURE);
 489                 }
 490
 491                 params.file_size = sbuf.st_size + tparams->header_size;
 492                 close(dfd);
 493         }
 494
 495         /*
 496          * In case there an header with a variable
 497          * length will be added, the corresponding
 498          * function is called. This is responsible to
 499          * allocate memory for the header itself.
 500          */
 501         if (tparams->vrec_header)
 502                 pad_len = tparams->vrec_header(&params, tparams);
 503         else
 504                 memset(tparams->hdr, 0, tparams->header_size);
 505
 506         if (write(ifd, tparams->hdr, tparams->header_size)
 507                                         != tparams->header_size) {
 508                 fprintf (stderr, "%s: Write error on %s: %s\n",
 509                         params.cmdname, params.imagefile, strerror(errno));
 510                 exit (EXIT_FAILURE);
 511         }
 512
 513         if (!params.skipcpy) {
 514                 if (params.type == IH_TYPE_MULTI ||
 515                     params.type == IH_TYPE_SCRIPT) {
 516                         char *file = params.datafile;
 517                         uint32_t size;
 518
 519                         for (;;) {
 520                                 char *sep = NULL;
 521
 522                                 if (file) {
 523                                         if ((sep = strchr(file, ':')) != NULL) {
 524                                                 *sep = '\0';
 525                                         }
 526
 527                                         if (stat (file, &sbuf) < 0) {
 528                                                 fprintf (stderr, "%s: Can't stat %s: %s\n",
 529                                                          params.cmdname, file, strerror(errno));
 530                                                 exit (EXIT_FAILURE);
 531                                         }
 532                                         size = cpu_to_uimage (sbuf.st_size);
 533                                 } else {
 534                                         size = 0;
 535                                 }
 536
 537                                 if (write(ifd, (char *)&size, sizeof(size)) != sizeof(size)) {
 538                                         fprintf (stderr, "%s: Write error on %s: %s\n",
 539                                                  params.cmdname, params.imagefile,
 540                                                  strerror(errno));
 541                                         exit (EXIT_FAILURE);
 542                                 }
 543
 544                                 if (!file) {
 545                                         break;
 546                                 }
 547
 548                                 if (sep) {
 549                                         *sep = ':';
 550                                         file = sep + 1;
 551                                 } else {
 552                                         file = NULL;
 553                                 }
 554                         }
 555
 556                         file = params.datafile;
 557
 558                         for (;;) {
 559                                 char *sep = strchr(file, ':');
 560                                 if (sep) {
 561                                         *sep = '\0';
 562                                         copy_file (ifd, file, 1);
 563                                         *sep++ = ':';
 564                                         file = sep;
 565                                 } else {
 566                                         copy_file (ifd, file, 0);
 567                                         break;
 568                                 }
 569                         }
 570                 } else if (params.type == IH_TYPE_PBLIMAGE) {
 571                         /* PBL has special Image format, implements its' own */
 572                         pbl_load_uboot(ifd, &params);
 573                 } else if (params.type == IH_TYPE_ZYNQMPBIF) {
 574                         /* Image file is meta, walk through actual targets */
 575                         int ret;
 576
 577                         ret = zynqmpbif_copy_image(ifd, &params);
 578                         if (ret)
 579                                 return ret;
 580                 } else if (params.type == IH_TYPE_IMX8IMAGE) {
 581                         /* i.MX8/8X has special Image format */
 582                         int ret;
 583
 584                         ret = imx8image_copy_image(ifd, &params);
 585                         if (ret)
 586                                 return ret;
 587                 } else if (params.type == IH_TYPE_IMX8MIMAGE) {
 588                         /* i.MX8M has special Image format */
 589                         int ret;
 590
 591                         ret = imx8mimage_copy_image(ifd, &params);
 592                         if (ret)
 593                                 return ret;
 594                 } else if ((params.type == IH_TYPE_RKSD) ||
 595                                 (params.type == IH_TYPE_RKSPI)) {
 596                         /* Rockchip has special Image format */
 597                         int ret;
 598
 599                         ret = rockchip_copy_image(ifd, &params);
 600                         if (ret)
 601                                 return ret;
 602                 } else {
 603                         copy_file(ifd, params.datafile, pad_len);
 604                 }
 605                 if (params.type == IH_TYPE_FIRMWARE_IVT) {
 606                         /* Add alignment and IVT */
 607                         uint32_t aligned_filesize = ALIGN(params.file_size,
 608                                                           0x1000);
 609                         flash_header_v2_t ivt_header = { { 0xd1, 0x2000, 0x40 },
 610                                         params.addr, 0, 0, 0, params.addr
 611                                                         + aligned_filesize
 612                                                         - tparams->header_size,
 613                                         params.addr + aligned_filesize
 614                                                         - tparams->header_size
 615                                                         + 0x20, 0 };
 616                         int i = params.file_size;
 617                         for (; i < aligned_filesize; i++) {
 618                                 if (write(ifd, (char *) &i, 1) != 1) {
 619                                         fprintf(stderr,
 620                                                         "%s: Write error on %s: %s\n",
 621                                                         params.cmdname,
 622                                                         params.imagefile,
 623                                                         strerror(errno));
 624                                         exit(EXIT_FAILURE);
 625                                 }
 626                         }
 627                         if (write(ifd, &ivt_header, sizeof(flash_header_v2_t))
 628                                         != sizeof(flash_header_v2_t)) {
 629                                 fprintf(stderr, "%s: Write error on %s: %s\n",
 630                                                 params.cmdname,
 631                                                 params.imagefile,
 632                                                 strerror(errno));
 633                                 exit(EXIT_FAILURE);
 634                         }
 635                 }
 636         }
 637
 638         /* We're a bit of paranoid */
 639 #if defined(_POSIX_SYNCHRONIZED_IO) && \
 640    !defined(__sun__) && \
 641    !defined(__FreeBSD__) && \
 642    !defined(__OpenBSD__) && \
 643    !defined(__APPLE__)
 644         (void) fdatasync (ifd);
 645 #else
 646         (void) fsync (ifd);
 647 #endif
 648
 649         if (fstat(ifd, &sbuf) < 0) {
 650                 fprintf (stderr, "%s: Can't stat %s: %s\n",
 651                         params.cmdname, params.imagefile, strerror(errno));
 652                 exit (EXIT_FAILURE);
 653         }
 654         params.file_size = sbuf.st_size;
 655
 656         map_len = sbuf.st_size;
 657         ptr = mmap(0, map_len, PROT_READ | PROT_WRITE, MAP_SHARED, ifd, 0);
 658         if (ptr == MAP_FAILED) {
 659                 fprintf (stderr, "%s: Can't map %s: %s\n",
 660                         params.cmdname, params.imagefile, strerror(errno));
 661                 exit (EXIT_FAILURE);
 662         }
 663
 664         /* Setup the image header as per input image type*/
 665         if (tparams->set_header)
 666                 tparams->set_header (ptr, &sbuf, ifd, &params);
 667         else {
 668                 fprintf (stderr, "%s: Can't set header for %s: %s\n",
 669                         params.cmdname, tparams->name, strerror(errno));
 670                 exit (EXIT_FAILURE);
 671         }
 672
 673         /* Print the image information by processing image header */
 674         if (tparams->print_header)
 675                 tparams->print_header (ptr);
 676         else {
 677                 fprintf (stderr, "%s: Can't print header for %s\n",
 678                         params.cmdname, tparams->name);
 679         }
 680
 681         (void)munmap((void *)ptr, map_len);
 682
 683         /* We're a bit of paranoid */
 684 #if defined(_POSIX_SYNCHRONIZED_IO) && \
 685    !defined(__sun__) && \
 686    !defined(__FreeBSD__) && \
 687    !defined(__OpenBSD__) && \
 688    !defined(__APPLE__)
 689         (void) fdatasync (ifd);
 690 #else
 691         (void) fsync (ifd);
 692 #endif
 693
 694         if (close(ifd)) {
 695                 fprintf (stderr, "%s: Write error on %s: %s\n",
 696                         params.cmdname, params.imagefile, strerror(errno));
 697                 exit (EXIT_FAILURE);
 698         }
 699
 700         exit (EXIT_SUCCESS);
 701 }
 702
 703 static void
 704 copy_file (int ifd, const char *datafile, int pad)
 705 {
 706         int dfd;
 707         struct stat sbuf;
 708         unsigned char *ptr;
 709         int tail;
 710         int zero = 0;
 711         uint8_t zeros[4096];
 712         int offset = 0;
 713         int size, ret;
 714         struct image_type_params *tparams = imagetool_get_type(params.type);
 715
 716         memset(zeros, 0, sizeof(zeros));
 717
 718         if (params.vflag) {
 719                 fprintf (stderr, "Adding Image %s\n", datafile);
 720         }
 721
 722         if ((dfd = open(datafile, O_RDONLY|O_BINARY)) < 0) {
 723                 fprintf (stderr, "%s: Can't open %s: %s\n",
 724                         params.cmdname, datafile, strerror(errno));
 725                 exit (EXIT_FAILURE);
 726         }
 727
 728         if (fstat(dfd, &sbuf) < 0) {
 729                 fprintf (stderr, "%s: Can't stat %s: %s\n",
 730                         params.cmdname, datafile, strerror(errno));
 731                 exit (EXIT_FAILURE);
 732         }
 733
 734         if (sbuf.st_size == 0) {
 735                 fprintf (stderr, "%s: Input file %s is empty, bailing out\n",
 736                         params.cmdname, datafile);
 737                 exit (EXIT_FAILURE);
 738         }
 739
 740         ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
 741         if (ptr == MAP_FAILED) {
 742                 fprintf (stderr, "%s: Can't read %s: %s\n",
 743                         params.cmdname, datafile, strerror(errno));
 744                 exit (EXIT_FAILURE);
 745         }
 746
 747         if (params.xflag) {
 748                 unsigned char *p = NULL;
 749                 /*
 750                  * XIP: do not append the image_header_t at the
 751                  * beginning of the file, but consume the space
 752                  * reserved for it.
 753                  */
 754
 755                 if ((unsigned)sbuf.st_size < tparams->header_size) {
 756                         fprintf (stderr,
 757                                 "%s: Bad size: \"%s\" is too small for XIP\n",
 758                                 params.cmdname, datafile);
 759                         exit (EXIT_FAILURE);
 760                 }
 761
 762                 for (p = ptr; p < ptr + tparams->header_size; p++) {
 763                         if ( *p != 0xff ) {
 764                                 fprintf (stderr,
 765                                         "%s: Bad file: \"%s\" has invalid buffer for XIP\n",
 766                                         params.cmdname, datafile);
 767                                 exit (EXIT_FAILURE);
 768                         }
 769                 }
 770
 771                 offset = tparams->header_size;
 772         }
 773
 774         size = sbuf.st_size - offset;
 775
 776         ret = write(ifd, ptr + offset, size);
 777         if (ret != size) {
 778                 if (ret < 0)
 779                         fprintf (stderr, "%s: Write error on %s: %s\n",
 780                                  params.cmdname, params.imagefile, strerror(errno));
 781                 else if (ret < size)
 782                         fprintf (stderr, "%s: Write only %d/%d bytes, "\
 783                                  "probably no space left on the device\n",
 784                                  params.cmdname, ret, size);
 785                 exit (EXIT_FAILURE);
 786         }
 787
 788         tail = size % 4;
 789         if ((pad == 1) && (tail != 0)) {
 790
 791                 if (write(ifd, (char *)&zero, 4-tail) != 4-tail) {
 792                         fprintf (stderr, "%s: Write error on %s: %s\n",
 793                                 params.cmdname, params.imagefile,
 794                                 strerror(errno));
 795                         exit (EXIT_FAILURE);
 796                 }
 797         } else if (pad > 1) {
 798                 while (pad > 0) {
 799                         int todo = sizeof(zeros);
 800
 801                         if (todo > pad)
 802                                 todo = pad;
 803                         if (write(ifd, (char *)&zeros, todo) != todo) {
 804                                 fprintf(stderr, "%s: Write error on %s: %s\n",
 805                                         params.cmdname, params.imagefile,
 806                                         strerror(errno));
 807                                 exit(EXIT_FAILURE);
 808                         }
 809                         pad -= todo;
 810                 }
 811         }
 812
 813         (void) munmap((void *)ptr, sbuf.st_size);
 814         (void) close (dfd);
 815 }