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