2 * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
4 * SPDX-License-Identifier: GPL-2.0
15 #include <sandboxfs.h>
16 #include <ubifs_uboot.h>
20 #include <linux/math64.h>
22 DECLARE_GLOBAL_DATA_PTR
;
24 static struct blk_desc
*fs_dev_desc
;
25 static int fs_dev_part
;
26 static disk_partition_t fs_partition
;
27 static int fs_type
= FS_TYPE_ANY
;
29 static inline int fs_probe_unsupported(struct blk_desc
*fs_dev_desc
,
30 disk_partition_t
*fs_partition
)
32 printf("** Unrecognized filesystem type **\n");
36 static inline int fs_ls_unsupported(const char *dirname
)
41 /* generic implementation of ls in terms of opendir/readdir/closedir */
43 static int fs_ls_generic(const char *dirname
)
45 struct fs_dir_stream
*dirs
;
46 struct fs_dirent
*dent
;
47 int nfiles
= 0, ndirs
= 0;
49 dirs
= fs_opendir(dirname
);
53 while ((dent
= fs_readdir(dirs
))) {
54 if (dent
->type
== FS_DT_DIR
) {
55 printf(" %s/\n", dent
->name
);
58 printf(" %8lld %s\n", dent
->size
, dent
->name
);
65 printf("\n%d file(s), %d dir(s)\n\n", nfiles
, ndirs
);
70 static inline int fs_exists_unsupported(const char *filename
)
75 static inline int fs_size_unsupported(const char *filename
, loff_t
*size
)
80 static inline int fs_read_unsupported(const char *filename
, void *buf
,
81 loff_t offset
, loff_t len
,
87 static inline int fs_write_unsupported(const char *filename
, void *buf
,
88 loff_t offset
, loff_t len
,
94 static inline void fs_close_unsupported(void)
98 static inline int fs_uuid_unsupported(char *uuid_str
)
103 static inline int fs_opendir_unsupported(const char *filename
,
104 struct fs_dir_stream
**dirs
)
113 * Is it legal to pass NULL as .probe()'s fs_dev_desc parameter? This
114 * should be false in most cases. For "virtual" filesystems which
115 * aren't based on a U-Boot block device (e.g. sandbox), this can be
116 * set to true. This should also be true for the dumm entry at the end
117 * of fstypes[], since that is essentially a "virtual" (non-existent)
120 bool null_dev_desc_ok
;
121 int (*probe
)(struct blk_desc
*fs_dev_desc
,
122 disk_partition_t
*fs_partition
);
123 int (*ls
)(const char *dirname
);
124 int (*exists
)(const char *filename
);
125 int (*size
)(const char *filename
, loff_t
*size
);
126 int (*read
)(const char *filename
, void *buf
, loff_t offset
,
127 loff_t len
, loff_t
*actread
);
128 int (*write
)(const char *filename
, void *buf
, loff_t offset
,
129 loff_t len
, loff_t
*actwrite
);
131 int (*uuid
)(char *uuid_str
);
133 * Open a directory stream. On success return 0 and directory
134 * stream pointer via 'dirsp'. On error, return -errno. See
137 int (*opendir
)(const char *filename
, struct fs_dir_stream
**dirsp
);
139 * Read next entry from directory stream. On success return 0
140 * and directory entry pointer via 'dentp'. On error return
141 * -errno. See fs_readdir().
143 int (*readdir
)(struct fs_dir_stream
*dirs
, struct fs_dirent
**dentp
);
144 /* see fs_closedir() */
145 void (*closedir
)(struct fs_dir_stream
*dirs
);
148 static struct fstype_info fstypes
[] = {
151 .fstype
= FS_TYPE_FAT
,
153 .null_dev_desc_ok
= false,
154 .probe
= fat_set_blk_dev
,
157 .exists
= fat_exists
,
159 .read
= fat_read_file
,
160 #ifdef CONFIG_FAT_WRITE
161 .write
= file_fat_write
,
163 .write
= fs_write_unsupported
,
165 .uuid
= fs_uuid_unsupported
,
166 .opendir
= fat_opendir
,
167 .readdir
= fat_readdir
,
168 .closedir
= fat_closedir
,
171 #ifdef CONFIG_FS_EXT4
173 .fstype
= FS_TYPE_EXT
,
175 .null_dev_desc_ok
= false,
176 .probe
= ext4fs_probe
,
177 .close
= ext4fs_close
,
179 .exists
= ext4fs_exists
,
181 .read
= ext4_read_file
,
182 #ifdef CONFIG_CMD_EXT4_WRITE
183 .write
= ext4_write_file
,
185 .write
= fs_write_unsupported
,
188 .opendir
= fs_opendir_unsupported
,
191 #ifdef CONFIG_SANDBOX
193 .fstype
= FS_TYPE_SANDBOX
,
195 .null_dev_desc_ok
= true,
196 .probe
= sandbox_fs_set_blk_dev
,
197 .close
= sandbox_fs_close
,
199 .exists
= sandbox_fs_exists
,
200 .size
= sandbox_fs_size
,
201 .read
= fs_read_sandbox
,
202 .write
= fs_write_sandbox
,
203 .uuid
= fs_uuid_unsupported
,
204 .opendir
= fs_opendir_unsupported
,
207 #ifdef CONFIG_CMD_UBIFS
209 .fstype
= FS_TYPE_UBIFS
,
211 .null_dev_desc_ok
= true,
212 .probe
= ubifs_set_blk_dev
,
213 .close
= ubifs_close
,
215 .exists
= ubifs_exists
,
218 .write
= fs_write_unsupported
,
219 .uuid
= fs_uuid_unsupported
,
220 .opendir
= fs_opendir_unsupported
,
223 #ifdef CONFIG_FS_BTRFS
225 .fstype
= FS_TYPE_BTRFS
,
227 .null_dev_desc_ok
= false,
228 .probe
= btrfs_probe
,
229 .close
= btrfs_close
,
231 .exists
= btrfs_exists
,
234 .write
= fs_write_unsupported
,
236 .opendir
= fs_opendir_unsupported
,
240 .fstype
= FS_TYPE_ANY
,
241 .name
= "unsupported",
242 .null_dev_desc_ok
= true,
243 .probe
= fs_probe_unsupported
,
244 .close
= fs_close_unsupported
,
245 .ls
= fs_ls_unsupported
,
246 .exists
= fs_exists_unsupported
,
247 .size
= fs_size_unsupported
,
248 .read
= fs_read_unsupported
,
249 .write
= fs_write_unsupported
,
250 .uuid
= fs_uuid_unsupported
,
251 .opendir
= fs_opendir_unsupported
,
255 static struct fstype_info
*fs_get_info(int fstype
)
257 struct fstype_info
*info
;
260 for (i
= 0, info
= fstypes
; i
< ARRAY_SIZE(fstypes
) - 1; i
++, info
++) {
261 if (fstype
== info
->fstype
)
265 /* Return the 'unsupported' sentinel */
269 int fs_set_blk_dev(const char *ifname
, const char *dev_part_str
, int fstype
)
271 struct fstype_info
*info
;
273 #ifdef CONFIG_NEEDS_MANUAL_RELOC
274 static int relocated
;
277 for (i
= 0, info
= fstypes
; i
< ARRAY_SIZE(fstypes
);
279 info
->name
+= gd
->reloc_off
;
280 info
->probe
+= gd
->reloc_off
;
281 info
->close
+= gd
->reloc_off
;
282 info
->ls
+= gd
->reloc_off
;
283 info
->read
+= gd
->reloc_off
;
284 info
->write
+= gd
->reloc_off
;
290 part
= blk_get_device_part_str(ifname
, dev_part_str
, &fs_dev_desc
,
295 for (i
= 0, info
= fstypes
; i
< ARRAY_SIZE(fstypes
); i
++, info
++) {
296 if (fstype
!= FS_TYPE_ANY
&& info
->fstype
!= FS_TYPE_ANY
&&
297 fstype
!= info
->fstype
)
300 if (!fs_dev_desc
&& !info
->null_dev_desc_ok
)
303 if (!info
->probe(fs_dev_desc
, &fs_partition
)) {
304 fs_type
= info
->fstype
;
313 /* set current blk device w/ blk_desc + partition # */
314 int fs_set_blk_dev_with_part(struct blk_desc
*desc
, int part
)
316 struct fstype_info
*info
;
320 ret
= part_get_info(desc
, part
, &fs_partition
);
322 ret
= part_get_info_whole_disk(desc
, &fs_partition
);
327 for (i
= 0, info
= fstypes
; i
< ARRAY_SIZE(fstypes
); i
++, info
++) {
328 if (!info
->probe(fs_dev_desc
, &fs_partition
)) {
329 fs_type
= info
->fstype
;
337 static void fs_close(void)
339 struct fstype_info
*info
= fs_get_info(fs_type
);
343 fs_type
= FS_TYPE_ANY
;
346 int fs_uuid(char *uuid_str
)
348 struct fstype_info
*info
= fs_get_info(fs_type
);
350 return info
->uuid(uuid_str
);
353 int fs_ls(const char *dirname
)
357 struct fstype_info
*info
= fs_get_info(fs_type
);
359 ret
= info
->ls(dirname
);
361 fs_type
= FS_TYPE_ANY
;
367 int fs_exists(const char *filename
)
371 struct fstype_info
*info
= fs_get_info(fs_type
);
373 ret
= info
->exists(filename
);
380 int fs_size(const char *filename
, loff_t
*size
)
384 struct fstype_info
*info
= fs_get_info(fs_type
);
386 ret
= info
->size(filename
, size
);
393 int fs_read(const char *filename
, ulong addr
, loff_t offset
, loff_t len
,
396 struct fstype_info
*info
= fs_get_info(fs_type
);
401 * We don't actually know how many bytes are being read, since len==0
402 * means read the whole file.
404 buf
= map_sysmem(addr
, len
);
405 ret
= info
->read(filename
, buf
, offset
, len
, actread
);
408 /* If we requested a specific number of bytes, check we got it */
409 if (ret
== 0 && len
&& *actread
!= len
)
410 debug("** %s shorter than offset + len **\n", filename
);
416 int fs_write(const char *filename
, ulong addr
, loff_t offset
, loff_t len
,
419 struct fstype_info
*info
= fs_get_info(fs_type
);
423 buf
= map_sysmem(addr
, len
);
424 ret
= info
->write(filename
, buf
, offset
, len
, actwrite
);
427 if (ret
< 0 && len
!= *actwrite
) {
428 printf("** Unable to write file %s **\n", filename
);
436 struct fs_dir_stream
*fs_opendir(const char *filename
)
438 struct fstype_info
*info
= fs_get_info(fs_type
);
439 struct fs_dir_stream
*dirs
= NULL
;
442 ret
= info
->opendir(filename
, &dirs
);
449 dirs
->desc
= fs_dev_desc
;
450 dirs
->part
= fs_dev_part
;
455 struct fs_dirent
*fs_readdir(struct fs_dir_stream
*dirs
)
457 struct fstype_info
*info
;
458 struct fs_dirent
*dirent
;
461 fs_set_blk_dev_with_part(dirs
->desc
, dirs
->part
);
462 info
= fs_get_info(fs_type
);
464 ret
= info
->readdir(dirs
, &dirent
);
474 void fs_closedir(struct fs_dir_stream
*dirs
)
476 struct fstype_info
*info
;
481 fs_set_blk_dev_with_part(dirs
->desc
, dirs
->part
);
482 info
= fs_get_info(fs_type
);
484 info
->closedir(dirs
);
489 int do_size(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[],
495 return CMD_RET_USAGE
;
497 if (fs_set_blk_dev(argv
[1], argv
[2], fstype
))
500 if (fs_size(argv
[3], &size
) < 0)
501 return CMD_RET_FAILURE
;
503 env_set_hex("filesize", size
);
508 int do_load(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[],
512 const char *addr_str
;
513 const char *filename
;
522 return CMD_RET_USAGE
;
524 return CMD_RET_USAGE
;
526 if (fs_set_blk_dev(argv
[1], (argc
>= 3) ? argv
[2] : NULL
, fstype
))
530 addr
= simple_strtoul(argv
[3], &ep
, 16);
531 if (ep
== argv
[3] || *ep
!= '\0')
532 return CMD_RET_USAGE
;
534 addr_str
= env_get("loadaddr");
535 if (addr_str
!= NULL
)
536 addr
= simple_strtoul(addr_str
, NULL
, 16);
538 addr
= CONFIG_SYS_LOAD_ADDR
;
543 filename
= env_get("bootfile");
545 puts("** No boot file defined **\n");
550 bytes
= simple_strtoul(argv
[5], NULL
, 16);
554 pos
= simple_strtoul(argv
[6], NULL
, 16);
559 ret
= fs_read(filename
, addr
, pos
, bytes
, &len_read
);
560 time
= get_timer(time
);
564 printf("%llu bytes read in %lu ms", len_read
, time
);
567 print_size(div_u64(len_read
, time
) * 1000, "/s");
572 env_set_hex("fileaddr", addr
);
573 env_set_hex("filesize", len_read
);
578 int do_ls(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[],
582 return CMD_RET_USAGE
;
584 return CMD_RET_USAGE
;
586 if (fs_set_blk_dev(argv
[1], (argc
>= 3) ? argv
[2] : NULL
, fstype
))
589 if (fs_ls(argc
>= 4 ? argv
[3] : "/"))
595 int file_exists(const char *dev_type
, const char *dev_part
, const char *file
,
598 if (fs_set_blk_dev(dev_type
, dev_part
, fstype
))
601 return fs_exists(file
);
604 int do_save(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[],
608 const char *filename
;
615 if (argc
< 6 || argc
> 7)
616 return CMD_RET_USAGE
;
618 if (fs_set_blk_dev(argv
[1], argv
[2], fstype
))
621 addr
= simple_strtoul(argv
[3], NULL
, 16);
623 bytes
= simple_strtoul(argv
[5], NULL
, 16);
625 pos
= simple_strtoul(argv
[6], NULL
, 16);
630 ret
= fs_write(filename
, addr
, pos
, bytes
, &len
);
631 time
= get_timer(time
);
635 printf("%llu bytes written in %lu ms", len
, time
);
638 print_size(div_u64(len
, time
) * 1000, "/s");
646 int do_fs_uuid(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[],
651 memset(uuid
, 0, sizeof(uuid
));
653 if (argc
< 3 || argc
> 4)
654 return CMD_RET_USAGE
;
656 if (fs_set_blk_dev(argv
[1], argv
[2], fstype
))
661 return CMD_RET_FAILURE
;
664 env_set(argv
[3], uuid
);
666 printf("%s\n", uuid
);
668 return CMD_RET_SUCCESS
;
671 int do_fs_type(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
673 struct fstype_info
*info
;
675 if (argc
< 3 || argc
> 4)
676 return CMD_RET_USAGE
;
678 if (fs_set_blk_dev(argv
[1], argv
[2], FS_TYPE_ANY
))
681 info
= fs_get_info(fs_type
);
684 env_set(argv
[3], info
->name
);
686 printf("%s\n", info
->name
);
688 return CMD_RET_SUCCESS
;