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