tools/mkimage.c

   1 /*
   2  * (C) Copyright 2008 Semihalf
   3  *
   4  * (C) Copyright 2000-2009
   5  * DENX Software Engineering
   6  * Wolfgang Denk, wd@denx.de
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #include "mkimage.h"
  25 #include <image.h>
  26 #include <version.h>
  27
  28 static void copy_file(int, const char *, int);
  29 static void usage(void);
  30
  31 /* image_type_params link list to maintain registered image type supports */
  32 struct image_type_params *mkimage_tparams = NULL;
  33
  34 /* parameters initialized by core will be used by the image type code */
  35 struct mkimage_params params = {
  36         .os = IH_OS_LINUX,
  37         .arch = IH_ARCH_PPC,
  38         .type = IH_TYPE_KERNEL,
  39         .comp = IH_COMP_GZIP,
  40         .dtc = MKIMAGE_DEFAULT_DTC_OPTIONS,
  41         .imagename = "",
  42         .imagename2 = "",
  43 };
  44
  45 /*
  46  * mkimage_register -
  47  *
  48  * It is used to register respective image generation/list support to the
  49  * mkimage core
  50  *
  51  * the input struct image_type_params is checked and appended to the link
  52  * list, if the input structure is already registered, error
  53  */
  54 void mkimage_register (struct image_type_params *tparams)
  55 {
  56         struct image_type_params **tp;
  57
  58         if (!tparams) {
  59                 fprintf (stderr, "%s: %s: Null input\n",
  60                         params.cmdname, __FUNCTION__);
  61                 exit (EXIT_FAILURE);
  62         }
  63
  64         /* scan the linked list, check for registry and point the last one */
  65         for (tp = &mkimage_tparams; *tp != NULL; tp = &(*tp)->next) {
  66                 if (!strcmp((*tp)->name, tparams->name)) {
  67                         fprintf (stderr, "%s: %s already registered\n",
  68                                 params.cmdname, tparams->name);
  69                         return;
  70                 }
  71         }
  72
  73         /* add input struct entry at the end of link list */
  74         *tp = tparams;
  75         /* mark input entry as last entry in the link list */
  76         tparams->next = NULL;
  77
  78         debug ("Registered %s\n", tparams->name);
  79 }
  80
  81 /*
  82  * mkimage_get_type -
  83  *
  84  * It scans all registers image type supports
  85  * checks the input type_id for each supported image type
  86  *
  87  * if successful,
  88  *      returns respective image_type_params pointer if success
  89  * if input type_id is not supported by any of image_type_support
  90  *      returns NULL
  91  */
  92 struct image_type_params *mkimage_get_type(int type)
  93 {
  94         struct image_type_params *curr;
  95
  96         for (curr = mkimage_tparams; curr != NULL; curr = curr->next) {
  97                 if (curr->check_image_type) {
  98                         if (!curr->check_image_type (type))
  99                                 return curr;
 100                 }
 101         }
 102         return NULL;
 103 }
 104
 105 /*
 106  * mkimage_verify_print_header -
 107  *
 108  * It scans mkimage_tparams link list,
 109  * verifies image_header for each supported image type
 110  * if verification is successful, prints respective header
 111  *
 112  * returns negative if input image format does not match with any of
 113  * supported image types
 114  */
 115 int mkimage_verify_print_header (void *ptr, struct stat *sbuf)
 116 {
 117         int retval = -1;
 118         struct image_type_params *curr;
 119
 120         for (curr = mkimage_tparams; curr != NULL; curr = curr->next ) {
 121                 if (curr->verify_header) {
 122                         retval = curr->verify_header (
 123                                 (unsigned char *)ptr, sbuf->st_size,
 124                                 &params);
 125
 126                         if (retval == 0) {
 127                                 /*
 128                                  * Print the image information
 129                                  * if verify is successful
 130                                  */
 131                                 if (curr->print_header)
 132                                         curr->print_header (ptr);
 133                                 else {
 134                                         fprintf (stderr,
 135                                         "%s: print_header undefined for %s\n",
 136                                         params.cmdname, curr->name);
 137                                 }
 138                                 break;
 139                         }
 140                 }
 141         }
 142         return retval;
 143 }
 144
 145 int
 146 main (int argc, char **argv)
 147 {
 148         int ifd = -1;
 149         struct stat sbuf;
 150         char *ptr;
 151         int retval = 0;
 152         struct image_type_params *tparams = NULL;
 153
 154         /* Init Freescale PBL Boot image generation/list support */
 155         init_pbl_image_type();
 156         /* Init Kirkwood Boot image generation/list support */
 157         init_kwb_image_type ();
 158         /* Init Freescale imx Boot image generation/list support */
 159         init_imx_image_type ();
 160         /* Init FIT image generation/list support */
 161         init_fit_image_type ();
 162         /* Init TI OMAP Boot image generation/list support */
 163         init_omap_image_type();
 164         /* Init Default image generation/list support */
 165         init_default_image_type ();
 166         /* Init Davinci UBL support */
 167         init_ubl_image_type();
 168         /* Init Davinci AIS support */
 169         init_ais_image_type();
 170
 171         params.cmdname = *argv;
 172         params.addr = params.ep = 0;
 173
 174         while (--argc > 0 && **++argv == '-') {
 175                 while (*++*argv) {
 176                         switch (**argv) {
 177                         case 'l':
 178                                 params.lflag = 1;
 179                                 break;
 180                         case 'A':
 181                                 if ((--argc <= 0) ||
 182                                         (params.arch =
 183                                         genimg_get_arch_id (*++argv)) < 0)
 184                                         usage ();
 185                                 goto NXTARG;
 186                         case 'C':
 187                                 if ((--argc <= 0) ||
 188                                         (params.comp =
 189                                         genimg_get_comp_id (*++argv)) < 0)
 190                                         usage ();
 191                                 goto NXTARG;
 192                         case 'D':
 193                                 if (--argc <= 0)
 194                                         usage ();
 195                                 params.dtc = *++argv;
 196                                 goto NXTARG;
 197
 198                         case 'O':
 199                                 if ((--argc <= 0) ||
 200                                         (params.os =
 201                                         genimg_get_os_id (*++argv)) < 0)
 202                                         usage ();
 203                                 goto NXTARG;
 204                         case 'T':
 205                                 if ((--argc <= 0) ||
 206                                         (params.type =
 207                                         genimg_get_type_id (*++argv)) < 0)
 208                                         usage ();
 209                                 goto NXTARG;
 210
 211                         case 'a':
 212                                 if (--argc <= 0)
 213                                         usage ();
 214                                 params.addr = strtoul (*++argv, &ptr, 16);
 215                                 if (*ptr) {
 216                                         fprintf (stderr,
 217                                                 "%s: invalid load address %s\n",
 218                                                 params.cmdname, *argv);
 219                                         exit (EXIT_FAILURE);
 220                                 }
 221                                 goto NXTARG;
 222                         case 'd':
 223                                 if (--argc <= 0)
 224                                         usage ();
 225                                 params.datafile = *++argv;
 226                                 params.dflag = 1;
 227                                 goto NXTARG;
 228                         case 'e':
 229                                 if (--argc <= 0)
 230                                         usage ();
 231                                 params.ep = strtoul (*++argv, &ptr, 16);
 232                                 if (*ptr) {
 233                                         fprintf (stderr,
 234                                                 "%s: invalid entry point %s\n",
 235                                                 params.cmdname, *argv);
 236                                         exit (EXIT_FAILURE);
 237                                 }
 238                                 params.eflag = 1;
 239                                 goto NXTARG;
 240                         case 'f':
 241                                 if (--argc <= 0)
 242                                         usage ();
 243                                 /*
 244                                  * The flattened image tree (FIT) format
 245                                  * requires a flattened device tree image type
 246                                  */
 247                                 params.type = IH_TYPE_FLATDT;
 248                                 params.datafile = *++argv;
 249                                 params.fflag = 1;
 250                                 goto NXTARG;
 251                         case 'n':
 252                                 if (--argc <= 0)
 253                                         usage ();
 254                                 params.imagename = *++argv;
 255                                 goto NXTARG;
 256                         case 'R':
 257                                 if (--argc <= 0)
 258                                         usage();
 259                                 /*
 260                                  * This entry is for the second configuration
 261                                  * file, if only one is not enough.
 262                                  */
 263                                 params.imagename2 = *++argv;
 264                                 goto NXTARG;
 265                         case 's':
 266                                 params.skipcpy = 1;
 267                                 break;
 268                         case 'v':
 269                                 params.vflag++;
 270                                 break;
 271                         case 'V':
 272                                 printf("mkimage version %s\n", PLAIN_VERSION);
 273                                 exit(EXIT_SUCCESS);
 274                         case 'x':
 275                                 params.xflag++;
 276                                 break;
 277                         default:
 278                                 usage ();
 279                         }
 280                 }
 281 NXTARG:         ;
 282         }
 283
 284         if (argc != 1)
 285                 usage ();
 286
 287         /* set tparams as per input type_id */
 288         tparams = mkimage_get_type(params.type);
 289         if (tparams == NULL) {
 290                 fprintf (stderr, "%s: unsupported type %s\n",
 291                         params.cmdname, genimg_get_type_name(params.type));
 292                 exit (EXIT_FAILURE);
 293         }
 294
 295         /*
 296          * check the passed arguments parameters meets the requirements
 297          * as per image type to be generated/listed
 298          */
 299         if (tparams->check_params)
 300                 if (tparams->check_params (&params))
 301                         usage ();
 302
 303         if (!params.eflag) {
 304                 params.ep = params.addr;
 305                 /* If XIP, entry point must be after the U-Boot header */
 306                 if (params.xflag)
 307                         params.ep += tparams->header_size;
 308         }
 309
 310         params.imagefile = *argv;
 311
 312         if (params.fflag){
 313                 if (tparams->fflag_handle)
 314                         /*
 315                          * in some cases, some additional processing needs
 316                          * to be done if fflag is defined
 317                          *
 318                          * For ex. fit_handle_file for Fit file support
 319                          */
 320                         retval = tparams->fflag_handle(&params);
 321
 322                 if (retval != EXIT_SUCCESS)
 323                         exit (retval);
 324         }
 325
 326         if (params.lflag || params.fflag) {
 327                 ifd = open (params.imagefile, O_RDONLY|O_BINARY);
 328         } else {
 329                 ifd = open (params.imagefile,
 330                         O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666);
 331         }
 332
 333         if (ifd < 0) {
 334                 fprintf (stderr, "%s: Can't open %s: %s\n",
 335                         params.cmdname, params.imagefile,
 336                         strerror(errno));
 337                 exit (EXIT_FAILURE);
 338         }
 339
 340         if (params.lflag || params.fflag) {
 341                 /*
 342                  * list header information of existing image
 343                  */
 344                 if (fstat(ifd, &sbuf) < 0) {
 345                         fprintf (stderr, "%s: Can't stat %s: %s\n",
 346                                 params.cmdname, params.imagefile,
 347                                 strerror(errno));
 348                         exit (EXIT_FAILURE);
 349                 }
 350
 351                 if ((unsigned)sbuf.st_size < tparams->header_size) {
 352                         fprintf (stderr,
 353                                 "%s: Bad size: \"%s\" is not valid image\n",
 354                                 params.cmdname, params.imagefile);
 355                         exit (EXIT_FAILURE);
 356                 }
 357
 358                 ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, ifd, 0);
 359                 if (ptr == MAP_FAILED) {
 360                         fprintf (stderr, "%s: Can't read %s: %s\n",
 361                                 params.cmdname, params.imagefile,
 362                                 strerror(errno));
 363                         exit (EXIT_FAILURE);
 364                 }
 365
 366                 /*
 367                  * scan through mkimage registry for all supported image types
 368                  * and verify the input image file header for match
 369                  * Print the image information for matched image type
 370                  * Returns the error code if not matched
 371                  */
 372                 retval = mkimage_verify_print_header (ptr, &sbuf);
 373
 374                 (void) munmap((void *)ptr, sbuf.st_size);
 375                 (void) close (ifd);
 376
 377                 exit (retval);
 378         }
 379
 380         /*
 381          * In case there an header with a variable
 382          * length will be added, the corresponding
 383          * function is called. This is responsible to
 384          * allocate memory for the header itself.
 385          */
 386         if (tparams->vrec_header)
 387                 tparams->vrec_header(&params, tparams);
 388         else
 389                 memset(tparams->hdr, 0, tparams->header_size);
 390
 391         if (write(ifd, tparams->hdr, tparams->header_size)
 392                                         != tparams->header_size) {
 393                 fprintf (stderr, "%s: Write error on %s: %s\n",
 394                         params.cmdname, params.imagefile, strerror(errno));
 395                 exit (EXIT_FAILURE);
 396         }
 397
 398         if (!params.skipcpy) {
 399                 if (params.type == IH_TYPE_MULTI ||
 400                     params.type == IH_TYPE_SCRIPT) {
 401                         char *file = params.datafile;
 402                         uint32_t size;
 403
 404                         for (;;) {
 405                                 char *sep = NULL;
 406
 407                                 if (file) {
 408                                         if ((sep = strchr(file, ':')) != NULL) {
 409                                                 *sep = '\0';
 410                                         }
 411
 412                                         if (stat (file, &sbuf) < 0) {
 413                                                 fprintf (stderr, "%s: Can't stat %s: %s\n",
 414                                                          params.cmdname, file, strerror(errno));
 415                                                 exit (EXIT_FAILURE);
 416                                         }
 417                                         size = cpu_to_uimage (sbuf.st_size);
 418                                 } else {
 419                                         size = 0;
 420                                 }
 421
 422                                 if (write(ifd, (char *)&size, sizeof(size)) != sizeof(size)) {
 423                                         fprintf (stderr, "%s: Write error on %s: %s\n",
 424                                                  params.cmdname, params.imagefile,
 425                                                  strerror(errno));
 426                                         exit (EXIT_FAILURE);
 427                                 }
 428
 429                                 if (!file) {
 430                                         break;
 431                                 }
 432
 433                                 if (sep) {
 434                                         *sep = ':';
 435                                         file = sep + 1;
 436                                 } else {
 437                                         file = NULL;
 438                                 }
 439                         }
 440
 441                         file = params.datafile;
 442
 443                         for (;;) {
 444                                 char *sep = strchr(file, ':');
 445                                 if (sep) {
 446                                         *sep = '\0';
 447                                         copy_file (ifd, file, 1);
 448                                         *sep++ = ':';
 449                                         file = sep;
 450                                 } else {
 451                                         copy_file (ifd, file, 0);
 452                                         break;
 453                                 }
 454                         }
 455                 } else if (params.type == IH_TYPE_PBLIMAGE) {
 456                         /* PBL has special Image format, implements its' own */
 457                         pbl_load_uboot(ifd, &params);
 458                 } else {
 459                         copy_file (ifd, params.datafile, 0);
 460                 }
 461         }
 462
 463         /* We're a bit of paranoid */
 464 #if defined(_POSIX_SYNCHRONIZED_IO) && \
 465    !defined(__sun__) && \
 466    !defined(__FreeBSD__) && \
 467    !defined(__APPLE__)
 468         (void) fdatasync (ifd);
 469 #else
 470         (void) fsync (ifd);
 471 #endif
 472
 473         if (fstat(ifd, &sbuf) < 0) {
 474                 fprintf (stderr, "%s: Can't stat %s: %s\n",
 475                         params.cmdname, params.imagefile, strerror(errno));
 476                 exit (EXIT_FAILURE);
 477         }
 478
 479         ptr = mmap(0, sbuf.st_size, PROT_READ|PROT_WRITE, MAP_SHARED, ifd, 0);
 480         if (ptr == MAP_FAILED) {
 481                 fprintf (stderr, "%s: Can't map %s: %s\n",
 482                         params.cmdname, params.imagefile, strerror(errno));
 483                 exit (EXIT_FAILURE);
 484         }
 485
 486         /* Setup the image header as per input image type*/
 487         if (tparams->set_header)
 488                 tparams->set_header (ptr, &sbuf, ifd, &params);
 489         else {
 490                 fprintf (stderr, "%s: Can't set header for %s: %s\n",
 491                         params.cmdname, tparams->name, strerror(errno));
 492                 exit (EXIT_FAILURE);
 493         }
 494
 495         /* Print the image information by processing image header */
 496         if (tparams->print_header)
 497                 tparams->print_header (ptr);
 498         else {
 499                 fprintf (stderr, "%s: Can't print header for %s: %s\n",
 500                         params.cmdname, tparams->name, strerror(errno));
 501                 exit (EXIT_FAILURE);
 502         }
 503
 504         (void) munmap((void *)ptr, sbuf.st_size);
 505
 506         /* We're a bit of paranoid */
 507 #if defined(_POSIX_SYNCHRONIZED_IO) && \
 508    !defined(__sun__) && \
 509    !defined(__FreeBSD__) && \
 510    !defined(__APPLE__)
 511         (void) fdatasync (ifd);
 512 #else
 513         (void) fsync (ifd);
 514 #endif
 515
 516         if (close(ifd)) {
 517                 fprintf (stderr, "%s: Write error on %s: %s\n",
 518                         params.cmdname, params.imagefile, strerror(errno));
 519                 exit (EXIT_FAILURE);
 520         }
 521
 522         exit (EXIT_SUCCESS);
 523 }
 524
 525 static void
 526 copy_file (int ifd, const char *datafile, int pad)
 527 {
 528         int dfd;
 529         struct stat sbuf;
 530         unsigned char *ptr;
 531         int tail;
 532         int zero = 0;
 533         int offset = 0;
 534         int size;
 535         struct image_type_params *tparams = mkimage_get_type (params.type);
 536
 537         if (params.vflag) {
 538                 fprintf (stderr, "Adding Image %s\n", datafile);
 539         }
 540
 541         if ((dfd = open(datafile, O_RDONLY|O_BINARY)) < 0) {
 542                 fprintf (stderr, "%s: Can't open %s: %s\n",
 543                         params.cmdname, datafile, strerror(errno));
 544                 exit (EXIT_FAILURE);
 545         }
 546
 547         if (fstat(dfd, &sbuf) < 0) {
 548                 fprintf (stderr, "%s: Can't stat %s: %s\n",
 549                         params.cmdname, datafile, strerror(errno));
 550                 exit (EXIT_FAILURE);
 551         }
 552
 553         ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
 554         if (ptr == MAP_FAILED) {
 555                 fprintf (stderr, "%s: Can't read %s: %s\n",
 556                         params.cmdname, datafile, strerror(errno));
 557                 exit (EXIT_FAILURE);
 558         }
 559
 560         if (params.xflag) {
 561                 unsigned char *p = NULL;
 562                 /*
 563                  * XIP: do not append the image_header_t at the
 564                  * beginning of the file, but consume the space
 565                  * reserved for it.
 566                  */
 567
 568                 if ((unsigned)sbuf.st_size < tparams->header_size) {
 569                         fprintf (stderr,
 570                                 "%s: Bad size: \"%s\" is too small for XIP\n",
 571                                 params.cmdname, datafile);
 572                         exit (EXIT_FAILURE);
 573                 }
 574
 575                 for (p = ptr; p < ptr + tparams->header_size; p++) {
 576                         if ( *p != 0xff ) {
 577                                 fprintf (stderr,
 578                                         "%s: Bad file: \"%s\" has invalid buffer for XIP\n",
 579                                         params.cmdname, datafile);
 580                                 exit (EXIT_FAILURE);
 581                         }
 582                 }
 583
 584                 offset = tparams->header_size;
 585         }
 586
 587         size = sbuf.st_size - offset;
 588         if (write(ifd, ptr + offset, size) != size) {
 589                 fprintf (stderr, "%s: Write error on %s: %s\n",
 590                         params.cmdname, params.imagefile, strerror(errno));
 591                 exit (EXIT_FAILURE);
 592         }
 593
 594         if (pad && ((tail = size % 4) != 0)) {
 595
 596                 if (write(ifd, (char *)&zero, 4-tail) != 4-tail) {
 597                         fprintf (stderr, "%s: Write error on %s: %s\n",
 598                                 params.cmdname, params.imagefile,
 599                                 strerror(errno));
 600                         exit (EXIT_FAILURE);
 601                 }
 602         }
 603
 604         (void) munmap((void *)ptr, sbuf.st_size);
 605         (void) close (dfd);
 606 }
 607
 608 void
 609 usage ()
 610 {
 611         fprintf (stderr, "Usage: %s -l image\n"
 612                          "          -l ==> list image header information\n",
 613                 params.cmdname);
 614         fprintf (stderr, "       %s [-x] -A arch -O os -T type -C comp "
 615                          "-a addr -e ep -n name -d data_file[:data_file...] image\n"
 616                          "          -A ==> set architecture to 'arch'\n"
 617                          "          -O ==> set operating system to 'os'\n"
 618                          "          -T ==> set image type to 'type'\n"
 619                          "          -C ==> set compression type 'comp'\n"
 620                          "          -a ==> set load address to 'addr' (hex)\n"
 621                          "          -e ==> set entry point to 'ep' (hex)\n"
 622                          "          -n ==> set image name to 'name'\n"
 623                          "          -d ==> use image data from 'datafile'\n"
 624                          "          -x ==> set XIP (execute in place)\n",
 625                 params.cmdname);
 626         fprintf (stderr, "       %s [-D dtc_options] -f fit-image.its fit-image\n",
 627                 params.cmdname);
 628         fprintf (stderr, "       %s -V ==> print version information and exit\n",
 629                 params.cmdname);
 630
 631         exit (EXIT_FAILURE);
 632 }