fs/fs.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
   4  */
   5
   6 #define LOG_CATEGORY LOGC_CORE
   7
   8 #include <command.h>
   9 #include <config.h>
  10 #include <display_options.h>
  11 #include <errno.h>
  12 #include <common.h>
  13 #include <env.h>
  14 #include <lmb.h>
  15 #include <log.h>
  16 #include <mapmem.h>
  17 #include <part.h>
  18 #include <ext4fs.h>
  19 #include <fat.h>
  20 #include <fs.h>
  21 #include <sandboxfs.h>
  22 #include <semihostingfs.h>
  23 #include <ubifs_uboot.h>
  24 #include <btrfs.h>
  25 #include <asm/global_data.h>
  26 #include <asm/io.h>
  27 #include <div64.h>
  28 #include <linux/math64.h>
  29 #include <efi_loader.h>
  30 #include <squashfs.h>
  31 #include <erofs.h>
  32
  33 DECLARE_GLOBAL_DATA_PTR;
  34
  35 static struct blk_desc *fs_dev_desc;
  36 static int fs_dev_part;
  37 static struct disk_partition fs_partition;
  38 static int fs_type = FS_TYPE_ANY;
  39
  40 void fs_set_type(int type)
  41 {
  42         fs_type = type;
  43 }
  44
  45 static inline int fs_probe_unsupported(struct blk_desc *fs_dev_desc,
  46                                       struct disk_partition *fs_partition)
  47 {
  48         log_debug("Unrecognized filesystem type\n");
  49         return -1;
  50 }
  51
  52 static inline int fs_ls_unsupported(const char *dirname)
  53 {
  54         return -1;
  55 }
  56
  57 /* generic implementation of ls in terms of opendir/readdir/closedir */
  58 __maybe_unused
  59 static int fs_ls_generic(const char *dirname)
  60 {
  61         struct fs_dir_stream *dirs;
  62         struct fs_dirent *dent;
  63         int nfiles = 0, ndirs = 0;
  64
  65         dirs = fs_opendir(dirname);
  66         if (!dirs)
  67                 return -errno;
  68
  69         while ((dent = fs_readdir(dirs))) {
  70                 if (dent->type == FS_DT_DIR) {
  71                         printf("            %s/\n", dent->name);
  72                         ndirs++;
  73                 } else if (dent->type == FS_DT_LNK) {
  74                         printf("    <SYM>   %s\n", dent->name);
  75                         nfiles++;
  76                 } else {
  77                         printf(" %8lld   %s\n", dent->size, dent->name);
  78                         nfiles++;
  79                 }
  80         }
  81
  82         fs_closedir(dirs);
  83
  84         printf("\n%d file(s), %d dir(s)\n\n", nfiles, ndirs);
  85
  86         return 0;
  87 }
  88
  89 static inline int fs_exists_unsupported(const char *filename)
  90 {
  91         return 0;
  92 }
  93
  94 static inline int fs_size_unsupported(const char *filename, loff_t *size)
  95 {
  96         return -1;
  97 }
  98
  99 static inline int fs_read_unsupported(const char *filename, void *buf,
 100                                       loff_t offset, loff_t len,
 101                                       loff_t *actread)
 102 {
 103         return -1;
 104 }
 105
 106 static inline int fs_write_unsupported(const char *filename, void *buf,
 107                                       loff_t offset, loff_t len,
 108                                       loff_t *actwrite)
 109 {
 110         return -1;
 111 }
 112
 113 static inline int fs_ln_unsupported(const char *filename, const char *target)
 114 {
 115         return -1;
 116 }
 117
 118 static inline void fs_close_unsupported(void)
 119 {
 120 }
 121
 122 static inline int fs_uuid_unsupported(char *uuid_str)
 123 {
 124         return -1;
 125 }
 126
 127 static inline int fs_opendir_unsupported(const char *filename,
 128                                          struct fs_dir_stream **dirs)
 129 {
 130         return -EACCES;
 131 }
 132
 133 static inline int fs_unlink_unsupported(const char *filename)
 134 {
 135         return -1;
 136 }
 137
 138 static inline int fs_mkdir_unsupported(const char *dirname)
 139 {
 140         return -1;
 141 }
 142
 143 struct fstype_info {
 144         int fstype;
 145         char *name;
 146         /*
 147          * Is it legal to pass NULL as .probe()'s  fs_dev_desc parameter? This
 148          * should be false in most cases. For "virtual" filesystems which
 149          * aren't based on a U-Boot block device (e.g. sandbox), this can be
 150          * set to true. This should also be true for the dummy entry at the end
 151          * of fstypes[], since that is essentially a "virtual" (non-existent)
 152          * filesystem.
 153          */
 154         bool null_dev_desc_ok;
 155         int (*probe)(struct blk_desc *fs_dev_desc,
 156                      struct disk_partition *fs_partition);
 157         int (*ls)(const char *dirname);
 158         int (*exists)(const char *filename);
 159         int (*size)(const char *filename, loff_t *size);
 160         int (*read)(const char *filename, void *buf, loff_t offset,
 161                     loff_t len, loff_t *actread);
 162         int (*write)(const char *filename, void *buf, loff_t offset,
 163                      loff_t len, loff_t *actwrite);
 164         void (*close)(void);
 165         int (*uuid)(char *uuid_str);
 166         /*
 167          * Open a directory stream.  On success return 0 and directory
 168          * stream pointer via 'dirsp'.  On error, return -errno.  See
 169          * fs_opendir().
 170          */
 171         int (*opendir)(const char *filename, struct fs_dir_stream **dirsp);
 172         /*
 173          * Read next entry from directory stream.  On success return 0
 174          * and directory entry pointer via 'dentp'.  On error return
 175          * -errno.  See fs_readdir().
 176          */
 177         int (*readdir)(struct fs_dir_stream *dirs, struct fs_dirent **dentp);
 178         /* see fs_closedir() */
 179         void (*closedir)(struct fs_dir_stream *dirs);
 180         int (*unlink)(const char *filename);
 181         int (*mkdir)(const char *dirname);
 182         int (*ln)(const char *filename, const char *target);
 183 };
 184
 185 static struct fstype_info fstypes[] = {
 186 #if CONFIG_IS_ENABLED(FS_FAT)
 187         {
 188                 .fstype = FS_TYPE_FAT,
 189                 .name = "fat",
 190                 .null_dev_desc_ok = false,
 191                 .probe = fat_set_blk_dev,
 192                 .close = fat_close,
 193                 .ls = fs_ls_generic,
 194                 .exists = fat_exists,
 195                 .size = fat_size,
 196                 .read = fat_read_file,
 197 #if CONFIG_IS_ENABLED(FAT_WRITE)
 198                 .write = file_fat_write,
 199                 .unlink = fat_unlink,
 200                 .mkdir = fat_mkdir,
 201 #else
 202                 .write = fs_write_unsupported,
 203                 .unlink = fs_unlink_unsupported,
 204                 .mkdir = fs_mkdir_unsupported,
 205 #endif
 206                 .uuid = fat_uuid,
 207                 .opendir = fat_opendir,
 208                 .readdir = fat_readdir,
 209                 .closedir = fat_closedir,
 210                 .ln = fs_ln_unsupported,
 211         },
 212 #endif
 213
 214 #if CONFIG_IS_ENABLED(FS_EXT4)
 215         {
 216                 .fstype = FS_TYPE_EXT,
 217                 .name = "ext4",
 218                 .null_dev_desc_ok = false,
 219                 .probe = ext4fs_probe,
 220                 .close = ext4fs_close,
 221                 .ls = ext4fs_ls,
 222                 .exists = ext4fs_exists,
 223                 .size = ext4fs_size,
 224                 .read = ext4_read_file,
 225 #ifdef CONFIG_CMD_EXT4_WRITE
 226                 .write = ext4_write_file,
 227                 .ln = ext4fs_create_link,
 228 #else
 229                 .write = fs_write_unsupported,
 230                 .ln = fs_ln_unsupported,
 231 #endif
 232                 .uuid = ext4fs_uuid,
 233                 .opendir = fs_opendir_unsupported,
 234                 .unlink = fs_unlink_unsupported,
 235                 .mkdir = fs_mkdir_unsupported,
 236         },
 237 #endif
 238 #ifdef CONFIG_SANDBOX
 239         {
 240                 .fstype = FS_TYPE_SANDBOX,
 241                 .name = "sandbox",
 242                 .null_dev_desc_ok = true,
 243                 .probe = sandbox_fs_set_blk_dev,
 244                 .close = sandbox_fs_close,
 245                 .ls = sandbox_fs_ls,
 246                 .exists = sandbox_fs_exists,
 247                 .size = sandbox_fs_size,
 248                 .read = fs_read_sandbox,
 249                 .write = fs_write_sandbox,
 250                 .uuid = fs_uuid_unsupported,
 251                 .opendir = fs_opendir_unsupported,
 252                 .unlink = fs_unlink_unsupported,
 253                 .mkdir = fs_mkdir_unsupported,
 254                 .ln = fs_ln_unsupported,
 255         },
 256 #endif
 257 #ifdef CONFIG_SEMIHOSTING
 258         {
 259                 .fstype = FS_TYPE_SEMIHOSTING,
 260                 .name = "semihosting",
 261                 .null_dev_desc_ok = true,
 262                 .probe = smh_fs_set_blk_dev,
 263                 .close = fs_close_unsupported,
 264                 .ls = fs_ls_unsupported,
 265                 .exists = fs_exists_unsupported,
 266                 .size = smh_fs_size,
 267                 .read = smh_fs_read,
 268                 .write = smh_fs_write,
 269                 .uuid = fs_uuid_unsupported,
 270                 .opendir = fs_opendir_unsupported,
 271                 .unlink = fs_unlink_unsupported,
 272                 .mkdir = fs_mkdir_unsupported,
 273                 .ln = fs_ln_unsupported,
 274         },
 275 #endif
 276 #ifndef CONFIG_SPL_BUILD
 277 #ifdef CONFIG_CMD_UBIFS
 278         {
 279                 .fstype = FS_TYPE_UBIFS,
 280                 .name = "ubifs",
 281                 .null_dev_desc_ok = true,
 282                 .probe = ubifs_set_blk_dev,
 283                 .close = ubifs_close,
 284                 .ls = ubifs_ls,
 285                 .exists = ubifs_exists,
 286                 .size = ubifs_size,
 287                 .read = ubifs_read,
 288                 .write = fs_write_unsupported,
 289                 .uuid = fs_uuid_unsupported,
 290                 .opendir = fs_opendir_unsupported,
 291                 .unlink = fs_unlink_unsupported,
 292                 .mkdir = fs_mkdir_unsupported,
 293                 .ln = fs_ln_unsupported,
 294         },
 295 #endif
 296 #endif
 297 #ifndef CONFIG_SPL_BUILD
 298 #ifdef CONFIG_FS_BTRFS
 299         {
 300                 .fstype = FS_TYPE_BTRFS,
 301                 .name = "btrfs",
 302                 .null_dev_desc_ok = false,
 303                 .probe = btrfs_probe,
 304                 .close = btrfs_close,
 305                 .ls = btrfs_ls,
 306                 .exists = btrfs_exists,
 307                 .size = btrfs_size,
 308                 .read = btrfs_read,
 309                 .write = fs_write_unsupported,
 310                 .uuid = btrfs_uuid,
 311                 .opendir = fs_opendir_unsupported,
 312                 .unlink = fs_unlink_unsupported,
 313                 .mkdir = fs_mkdir_unsupported,
 314                 .ln = fs_ln_unsupported,
 315         },
 316 #endif
 317 #endif
 318 #if CONFIG_IS_ENABLED(FS_SQUASHFS)
 319         {
 320                 .fstype = FS_TYPE_SQUASHFS,
 321                 .name = "squashfs",
 322                 .null_dev_desc_ok = false,
 323                 .probe = sqfs_probe,
 324                 .opendir = sqfs_opendir,
 325                 .readdir = sqfs_readdir,
 326                 .ls = fs_ls_generic,
 327                 .read = sqfs_read,
 328                 .size = sqfs_size,
 329                 .close = sqfs_close,
 330                 .closedir = sqfs_closedir,
 331                 .exists = sqfs_exists,
 332                 .uuid = fs_uuid_unsupported,
 333                 .write = fs_write_unsupported,
 334                 .ln = fs_ln_unsupported,
 335                 .unlink = fs_unlink_unsupported,
 336                 .mkdir = fs_mkdir_unsupported,
 337         },
 338 #endif
 339 #if IS_ENABLED(CONFIG_FS_EROFS)
 340         {
 341                 .fstype = FS_TYPE_EROFS,
 342                 .name = "erofs",
 343                 .null_dev_desc_ok = false,
 344                 .probe = erofs_probe,
 345                 .opendir = erofs_opendir,
 346                 .readdir = erofs_readdir,
 347                 .ls = fs_ls_generic,
 348                 .read = erofs_read,
 349                 .size = erofs_size,
 350                 .close = erofs_close,
 351                 .closedir = erofs_closedir,
 352                 .exists = erofs_exists,
 353                 .uuid = fs_uuid_unsupported,
 354                 .write = fs_write_unsupported,
 355                 .ln = fs_ln_unsupported,
 356                 .unlink = fs_unlink_unsupported,
 357                 .mkdir = fs_mkdir_unsupported,
 358         },
 359 #endif
 360         {
 361                 .fstype = FS_TYPE_ANY,
 362                 .name = "unsupported",
 363                 .null_dev_desc_ok = true,
 364                 .probe = fs_probe_unsupported,
 365                 .close = fs_close_unsupported,
 366                 .ls = fs_ls_unsupported,
 367                 .exists = fs_exists_unsupported,
 368                 .size = fs_size_unsupported,
 369                 .read = fs_read_unsupported,
 370                 .write = fs_write_unsupported,
 371                 .uuid = fs_uuid_unsupported,
 372                 .opendir = fs_opendir_unsupported,
 373                 .unlink = fs_unlink_unsupported,
 374                 .mkdir = fs_mkdir_unsupported,
 375                 .ln = fs_ln_unsupported,
 376         },
 377 };
 378
 379 static struct fstype_info *fs_get_info(int fstype)
 380 {
 381         struct fstype_info *info;
 382         int i;
 383
 384         for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes) - 1; i++, info++) {
 385                 if (fstype == info->fstype)
 386                         return info;
 387         }
 388
 389         /* Return the 'unsupported' sentinel */
 390         return info;
 391 }
 392
 393 /**
 394  * fs_get_type() - Get type of current filesystem
 395  *
 396  * Return: filesystem type
 397  *
 398  * Returns filesystem type representing the current filesystem, or
 399  * FS_TYPE_ANY for any unrecognised filesystem.
 400  */
 401 int fs_get_type(void)
 402 {
 403         return fs_type;
 404 }
 405
 406 /**
 407  * fs_get_type_name() - Get type of current filesystem
 408  *
 409  * Return: Pointer to filesystem name
 410  *
 411  * Returns a string describing the current filesystem, or the sentinel
 412  * "unsupported" for any unrecognised filesystem.
 413  */
 414 const char *fs_get_type_name(void)
 415 {
 416         return fs_get_info(fs_type)->name;
 417 }
 418
 419 int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
 420 {
 421         struct fstype_info *info;
 422         int part, i;
 423 #ifdef CONFIG_NEEDS_MANUAL_RELOC
 424         static int relocated;
 425
 426         if (!relocated) {
 427                 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes);
 428                                 i++, info++) {
 429                         info->name += gd->reloc_off;
 430                         info->probe += gd->reloc_off;
 431                         info->close += gd->reloc_off;
 432                         info->ls += gd->reloc_off;
 433                         info->read += gd->reloc_off;
 434                         info->write += gd->reloc_off;
 435                 }
 436                 relocated = 1;
 437         }
 438 #endif
 439
 440         part = part_get_info_by_dev_and_name_or_num(ifname, dev_part_str, &fs_dev_desc,
 441                                                     &fs_partition, 1);
 442         if (part < 0)
 443                 return -1;
 444
 445         for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) {
 446                 if (fstype != FS_TYPE_ANY && info->fstype != FS_TYPE_ANY &&
 447                                 fstype != info->fstype)
 448                         continue;
 449
 450                 if (!fs_dev_desc && !info->null_dev_desc_ok)
 451                         continue;
 452
 453                 if (!info->probe(fs_dev_desc, &fs_partition)) {
 454                         fs_type = info->fstype;
 455                         fs_dev_part = part;
 456                         return 0;
 457                 }
 458         }
 459
 460         return -1;
 461 }
 462
 463 /* set current blk device w/ blk_desc + partition # */
 464 int fs_set_blk_dev_with_part(struct blk_desc *desc, int part)
 465 {
 466         struct fstype_info *info;
 467         int ret, i;
 468
 469         if (part >= 1)
 470                 ret = part_get_info(desc, part, &fs_partition);
 471         else
 472                 ret = part_get_info_whole_disk(desc, &fs_partition);
 473         if (ret)
 474                 return ret;
 475         fs_dev_desc = desc;
 476
 477         for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) {
 478                 if (!info->probe(fs_dev_desc, &fs_partition)) {
 479                         fs_type = info->fstype;
 480                         fs_dev_part = part;
 481                         return 0;
 482                 }
 483         }
 484
 485         return -1;
 486 }
 487
 488 void fs_close(void)
 489 {
 490         struct fstype_info *info = fs_get_info(fs_type);
 491
 492         info->close();
 493
 494         fs_type = FS_TYPE_ANY;
 495 }
 496
 497 int fs_uuid(char *uuid_str)
 498 {
 499         struct fstype_info *info = fs_get_info(fs_type);
 500
 501         return info->uuid(uuid_str);
 502 }
 503
 504 int fs_ls(const char *dirname)
 505 {
 506         int ret;
 507
 508         struct fstype_info *info = fs_get_info(fs_type);
 509
 510         ret = info->ls(dirname);
 511
 512         fs_close();
 513
 514         return ret;
 515 }
 516
 517 int fs_exists(const char *filename)
 518 {
 519         int ret;
 520
 521         struct fstype_info *info = fs_get_info(fs_type);
 522
 523         ret = info->exists(filename);
 524
 525         fs_close();
 526
 527         return ret;
 528 }
 529
 530 int fs_size(const char *filename, loff_t *size)
 531 {
 532         int ret;
 533
 534         struct fstype_info *info = fs_get_info(fs_type);
 535
 536         ret = info->size(filename, size);
 537
 538         fs_close();
 539
 540         return ret;
 541 }
 542
 543 #ifdef CONFIG_LMB
 544 /* Check if a file may be read to the given address */
 545 static int fs_read_lmb_check(const char *filename, ulong addr, loff_t offset,
 546                              loff_t len, struct fstype_info *info)
 547 {
 548         struct lmb lmb;
 549         int ret;
 550         loff_t size;
 551         loff_t read_len;
 552
 553         /* get the actual size of the file */
 554         ret = info->size(filename, &size);
 555         if (ret)
 556                 return ret;
 557         if (offset >= size) {
 558                 /* offset >= EOF, no bytes will be written */
 559                 return 0;
 560         }
 561         read_len = size - offset;
 562
 563         /* limit to 'len' if it is smaller */
 564         if (len && len < read_len)
 565                 read_len = len;
 566
 567         lmb_init_and_reserve(&lmb, gd->bd, (void *)gd->fdt_blob);
 568         lmb_dump_all(&lmb);
 569
 570         if (lmb_alloc_addr(&lmb, addr, read_len) == addr)
 571                 return 0;
 572
 573         log_err("** Reading file would overwrite reserved memory **\n");
 574         return -ENOSPC;
 575 }
 576 #endif
 577
 578 static int _fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
 579                     int do_lmb_check, loff_t *actread)
 580 {
 581         struct fstype_info *info = fs_get_info(fs_type);
 582         void *buf;
 583         int ret;
 584
 585 #ifdef CONFIG_LMB
 586         if (do_lmb_check) {
 587                 ret = fs_read_lmb_check(filename, addr, offset, len, info);
 588                 if (ret)
 589                         return ret;
 590         }
 591 #endif
 592
 593         /*
 594          * We don't actually know how many bytes are being read, since len==0
 595          * means read the whole file.
 596          */
 597         buf = map_sysmem(addr, len);
 598         ret = info->read(filename, buf, offset, len, actread);
 599         unmap_sysmem(buf);
 600
 601         /* If we requested a specific number of bytes, check we got it */
 602         if (ret == 0 && len && *actread != len)
 603                 log_debug("** %s shorter than offset + len **\n", filename);
 604         fs_close();
 605
 606         return ret;
 607 }
 608
 609 int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
 610             loff_t *actread)
 611 {
 612         return _fs_read(filename, addr, offset, len, 0, actread);
 613 }
 614
 615 int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
 616              loff_t *actwrite)
 617 {
 618         struct fstype_info *info = fs_get_info(fs_type);
 619         void *buf;
 620         int ret;
 621
 622         buf = map_sysmem(addr, len);
 623         ret = info->write(filename, buf, offset, len, actwrite);
 624         unmap_sysmem(buf);
 625
 626         if (ret < 0 && len != *actwrite) {
 627                 log_err("** Unable to write file %s **\n", filename);
 628                 ret = -1;
 629         }
 630         fs_close();
 631
 632         return ret;
 633 }
 634
 635 struct fs_dir_stream *fs_opendir(const char *filename)
 636 {
 637         struct fstype_info *info = fs_get_info(fs_type);
 638         struct fs_dir_stream *dirs = NULL;
 639         int ret;
 640
 641         ret = info->opendir(filename, &dirs);
 642         fs_close();
 643         if (ret) {
 644                 errno = -ret;
 645                 return NULL;
 646         }
 647
 648         dirs->desc = fs_dev_desc;
 649         dirs->part = fs_dev_part;
 650
 651         return dirs;
 652 }
 653
 654 struct fs_dirent *fs_readdir(struct fs_dir_stream *dirs)
 655 {
 656         struct fstype_info *info;
 657         struct fs_dirent *dirent;
 658         int ret;
 659
 660         fs_set_blk_dev_with_part(dirs->desc, dirs->part);
 661         info = fs_get_info(fs_type);
 662
 663         ret = info->readdir(dirs, &dirent);
 664         fs_close();
 665         if (ret) {
 666                 errno = -ret;
 667                 return NULL;
 668         }
 669
 670         return dirent;
 671 }
 672
 673 void fs_closedir(struct fs_dir_stream *dirs)
 674 {
 675         struct fstype_info *info;
 676
 677         if (!dirs)
 678                 return;
 679
 680         fs_set_blk_dev_with_part(dirs->desc, dirs->part);
 681         info = fs_get_info(fs_type);
 682
 683         info->closedir(dirs);
 684         fs_close();
 685 }
 686
 687 int fs_unlink(const char *filename)
 688 {
 689         int ret;
 690
 691         struct fstype_info *info = fs_get_info(fs_type);
 692
 693         ret = info->unlink(filename);
 694
 695         fs_close();
 696
 697         return ret;
 698 }
 699
 700 int fs_mkdir(const char *dirname)
 701 {
 702         int ret;
 703
 704         struct fstype_info *info = fs_get_info(fs_type);
 705
 706         ret = info->mkdir(dirname);
 707
 708         fs_close();
 709
 710         return ret;
 711 }
 712
 713 int fs_ln(const char *fname, const char *target)
 714 {
 715         struct fstype_info *info = fs_get_info(fs_type);
 716         int ret;
 717
 718         ret = info->ln(fname, target);
 719
 720         if (ret < 0) {
 721                 log_err("** Unable to create link %s -> %s **\n", fname, target);
 722                 ret = -1;
 723         }
 724         fs_close();
 725
 726         return ret;
 727 }
 728
 729 int do_size(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
 730             int fstype)
 731 {
 732         loff_t size;
 733
 734         if (argc != 4)
 735                 return CMD_RET_USAGE;
 736
 737         if (fs_set_blk_dev(argv[1], argv[2], fstype))
 738                 return 1;
 739
 740         if (fs_size(argv[3], &size) < 0)
 741                 return CMD_RET_FAILURE;
 742
 743         env_set_hex("filesize", size);
 744
 745         return 0;
 746 }
 747
 748 int do_load(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
 749             int fstype)
 750 {
 751         unsigned long addr;
 752         const char *addr_str;
 753         const char *filename;
 754         loff_t bytes;
 755         loff_t pos;
 756         loff_t len_read;
 757         int ret;
 758         unsigned long time;
 759         char *ep;
 760
 761         if (argc < 2)
 762                 return CMD_RET_USAGE;
 763         if (argc > 7)
 764                 return CMD_RET_USAGE;
 765
 766         if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype)) {
 767                 log_err("Can't set block device\n");
 768                 return 1;
 769         }
 770
 771         if (argc >= 4) {
 772                 addr = hextoul(argv[3], &ep);
 773                 if (ep == argv[3] || *ep != '\0')
 774                         return CMD_RET_USAGE;
 775         } else {
 776                 addr_str = env_get("loadaddr");
 777                 if (addr_str != NULL)
 778                         addr = hextoul(addr_str, NULL);
 779                 else
 780                         addr = CONFIG_SYS_LOAD_ADDR;
 781         }
 782         if (argc >= 5) {
 783                 filename = argv[4];
 784         } else {
 785                 filename = env_get("bootfile");
 786                 if (!filename) {
 787                         puts("** No boot file defined **\n");
 788                         return 1;
 789                 }
 790         }
 791         if (argc >= 6)
 792                 bytes = hextoul(argv[5], NULL);
 793         else
 794                 bytes = 0;
 795         if (argc >= 7)
 796                 pos = hextoul(argv[6], NULL);
 797         else
 798                 pos = 0;
 799
 800         time = get_timer(0);
 801         ret = _fs_read(filename, addr, pos, bytes, 1, &len_read);
 802         time = get_timer(time);
 803         if (ret < 0) {
 804                 log_err("Failed to load '%s'\n", filename);
 805                 return 1;
 806         }
 807
 808         if (IS_ENABLED(CONFIG_CMD_BOOTEFI))
 809                 efi_set_bootdev(argv[1], (argc > 2) ? argv[2] : "",
 810                                 (argc > 4) ? argv[4] : "", map_sysmem(addr, 0),
 811                                 len_read);
 812
 813         printf("%llu bytes read in %lu ms", len_read, time);
 814         if (time > 0) {
 815                 puts(" (");
 816                 print_size(div_u64(len_read, time) * 1000, "/s");
 817                 puts(")");
 818         }
 819         puts("\n");
 820
 821         env_set_hex("fileaddr", addr);
 822         env_set_hex("filesize", len_read);
 823
 824         return 0;
 825 }
 826
 827 int do_ls(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
 828           int fstype)
 829 {
 830         if (argc < 2)
 831                 return CMD_RET_USAGE;
 832         if (argc > 4)
 833                 return CMD_RET_USAGE;
 834
 835         if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
 836                 return 1;
 837
 838         if (fs_ls(argc >= 4 ? argv[3] : "/"))
 839                 return 1;
 840
 841         return 0;
 842 }
 843
 844 int file_exists(const char *dev_type, const char *dev_part, const char *file,
 845                 int fstype)
 846 {
 847         if (fs_set_blk_dev(dev_type, dev_part, fstype))
 848                 return 0;
 849
 850         return fs_exists(file);
 851 }
 852
 853 int do_save(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
 854             int fstype)
 855 {
 856         unsigned long addr;
 857         const char *filename;
 858         loff_t bytes;
 859         loff_t pos;
 860         loff_t len;
 861         int ret;
 862         unsigned long time;
 863
 864         if (argc < 6 || argc > 7)
 865                 return CMD_RET_USAGE;
 866
 867         if (fs_set_blk_dev(argv[1], argv[2], fstype))
 868                 return 1;
 869
 870         addr = hextoul(argv[3], NULL);
 871         filename = argv[4];
 872         bytes = hextoul(argv[5], NULL);
 873         if (argc >= 7)
 874                 pos = hextoul(argv[6], NULL);
 875         else
 876                 pos = 0;
 877
 878         time = get_timer(0);
 879         ret = fs_write(filename, addr, pos, bytes, &len);
 880         time = get_timer(time);
 881         if (ret < 0)
 882                 return 1;
 883
 884         printf("%llu bytes written in %lu ms", len, time);
 885         if (time > 0) {
 886                 puts(" (");
 887                 print_size(div_u64(len, time) * 1000, "/s");
 888                 puts(")");
 889         }
 890         puts("\n");
 891
 892         return 0;
 893 }
 894
 895 int do_fs_uuid(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
 896                int fstype)
 897 {
 898         int ret;
 899         char uuid[37];
 900         memset(uuid, 0, sizeof(uuid));
 901
 902         if (argc < 3 || argc > 4)
 903                 return CMD_RET_USAGE;
 904
 905         if (fs_set_blk_dev(argv[1], argv[2], fstype))
 906                 return 1;
 907
 908         ret = fs_uuid(uuid);
 909         if (ret)
 910                 return CMD_RET_FAILURE;
 911
 912         if (argc == 4)
 913                 env_set(argv[3], uuid);
 914         else
 915                 printf("%s\n", uuid);
 916
 917         return CMD_RET_SUCCESS;
 918 }
 919
 920 int do_fs_type(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 921 {
 922         struct fstype_info *info;
 923
 924         if (argc < 3 || argc > 4)
 925                 return CMD_RET_USAGE;
 926
 927         if (fs_set_blk_dev(argv[1], argv[2], FS_TYPE_ANY))
 928                 return 1;
 929
 930         info = fs_get_info(fs_type);
 931
 932         if (argc == 4)
 933                 env_set(argv[3], info->name);
 934         else
 935                 printf("%s\n", info->name);
 936
 937         fs_close();
 938
 939         return CMD_RET_SUCCESS;
 940 }
 941
 942 int do_rm(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
 943           int fstype)
 944 {
 945         if (argc != 4)
 946                 return CMD_RET_USAGE;
 947
 948         if (fs_set_blk_dev(argv[1], argv[2], fstype))
 949                 return 1;
 950
 951         if (fs_unlink(argv[3]))
 952                 return 1;
 953
 954         return 0;
 955 }
 956
 957 int do_mkdir(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
 958              int fstype)
 959 {
 960         int ret;
 961
 962         if (argc != 4)
 963                 return CMD_RET_USAGE;
 964
 965         if (fs_set_blk_dev(argv[1], argv[2], fstype))
 966                 return 1;
 967
 968         ret = fs_mkdir(argv[3]);
 969         if (ret) {
 970                 log_err("** Unable to create a directory \"%s\" **\n", argv[3]);
 971                 return 1;
 972         }
 973
 974         return 0;
 975 }
 976
 977 int do_ln(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
 978           int fstype)
 979 {
 980         if (argc != 5)
 981                 return CMD_RET_USAGE;
 982
 983         if (fs_set_blk_dev(argv[1], argv[2], fstype))
 984                 return 1;
 985
 986         if (fs_ln(argv[3], argv[4]))
 987                 return 1;
 988
 989         return 0;
 990 }
 991
 992 int do_fs_types(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
 993 {
 994         struct fstype_info *drv = fstypes;
 995         const int n_ents = ARRAY_SIZE(fstypes);
 996         struct fstype_info *entry;
 997         int i = 0;
 998
 999         puts("Supported filesystems");
1000         for (entry = drv; entry != drv + n_ents; entry++) {
1001                 if (entry->fstype != FS_TYPE_ANY) {
1002                         printf("%c %s", i ? ',' : ':', entry->name);
1003                         i++;
1004                 }
1005         }
1006         if (!i)
1007                 puts(": <none>");
1008         puts("\n");
1009         return CMD_RET_SUCCESS;
1010 }