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