[u-boot.git] / fs / fs.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
 */

#include <config.h>
#include <errno.h>
#include <common.h>
#include <mapmem.h>
#include <part.h>
#include <ext4fs.h>
#include <fat.h>
#include <fs.h>
#include <sandboxfs.h>
#include <ubifs_uboot.h>
#include <btrfs.h>
#include <asm/io.h>
#include <div64.h>
#include <linux/math64.h>

DECLARE_GLOBAL_DATA_PTR;

static struct blk_desc *fs_dev_desc;
static int fs_dev_part;
static disk_partition_t fs_partition;
static int fs_type = FS_TYPE_ANY;

static inline int fs_probe_unsupported(struct blk_desc *fs_dev_desc,
				      disk_partition_t *fs_partition)
{
	printf("** Unrecognized filesystem type **\n");
	return -1;
}

static inline int fs_ls_unsupported(const char *dirname)
{
	return -1;
}

/* generic implementation of ls in terms of opendir/readdir/closedir */
__maybe_unused
static int fs_ls_generic(const char *dirname)
{
	struct fs_dir_stream *dirs;
	struct fs_dirent *dent;
	int nfiles = 0, ndirs = 0;

	dirs = fs_opendir(dirname);
	if (!dirs)
		return -errno;

	while ((dent = fs_readdir(dirs))) {
		if (dent->type == FS_DT_DIR) {
			printf("            %s/\n", dent->name);
			ndirs++;
		} else {
			printf(" %8lld   %s\n", dent->size, dent->name);
			nfiles++;
		}
	}

	fs_closedir(dirs);

	printf("\n%d file(s), %d dir(s)\n\n", nfiles, ndirs);

	return 0;
}

static inline int fs_exists_unsupported(const char *filename)
{
	return 0;
}

static inline int fs_size_unsupported(const char *filename, loff_t *size)
{
	return -1;
}

static inline int fs_read_unsupported(const char *filename, void *buf,
				      loff_t offset, loff_t len,
				      loff_t *actread)
{
	return -1;
}

static inline int fs_write_unsupported(const char *filename, void *buf,
				      loff_t offset, loff_t len,
				      loff_t *actwrite)
{
	return -1;
}

static inline void fs_close_unsupported(void)
{
}

static inline int fs_uuid_unsupported(char *uuid_str)
{
	return -1;
}

static inline int fs_opendir_unsupported(const char *filename,
					 struct fs_dir_stream **dirs)
{
	return -EACCES;
}

static inline int fs_unlink_unsupported(const char *filename)
{
	return -1;
}

static inline int fs_mkdir_unsupported(const char *dirname)
{
	return -1;
}

struct fstype_info {
	int fstype;
	char *name;
	/*
	 * Is it legal to pass NULL as .probe()'s  fs_dev_desc parameter? This
	 * should be false in most cases. For "virtual" filesystems which
	 * aren't based on a U-Boot block device (e.g. sandbox), this can be
	 * set to true. This should also be true for the dummy entry at the end
	 * of fstypes[], since that is essentially a "virtual" (non-existent)
	 * filesystem.
	 */
	bool null_dev_desc_ok;
	int (*probe)(struct blk_desc *fs_dev_desc,
		     disk_partition_t *fs_partition);
	int (*ls)(const char *dirname);
	int (*exists)(const char *filename);
	int (*size)(const char *filename, loff_t *size);
	int (*read)(const char *filename, void *buf, loff_t offset,
		    loff_t len, loff_t *actread);
	int (*write)(const char *filename, void *buf, loff_t offset,
		     loff_t len, loff_t *actwrite);
	void (*close)(void);
	int (*uuid)(char *uuid_str);
	/*
	 * Open a directory stream.  On success return 0 and directory
	 * stream pointer via 'dirsp'.  On error, return -errno.  See
	 * fs_opendir().
	 */
	int (*opendir)(const char *filename, struct fs_dir_stream **dirsp);
	/*
	 * Read next entry from directory stream.  On success return 0
	 * and directory entry pointer via 'dentp'.  On error return
	 * -errno.  See fs_readdir().
	 */
	int (*readdir)(struct fs_dir_stream *dirs, struct fs_dirent **dentp);
	/* see fs_closedir() */
	void (*closedir)(struct fs_dir_stream *dirs);
	int (*unlink)(const char *filename);
	int (*mkdir)(const char *dirname);
};

static struct fstype_info fstypes[] = {
#ifdef CONFIG_FS_FAT
	{
		.fstype = FS_TYPE_FAT,
		.name = "fat",
		.null_dev_desc_ok = false,
		.probe = fat_set_blk_dev,
		.close = fat_close,
		.ls = fs_ls_generic,
		.exists = fat_exists,
		.size = fat_size,
		.read = fat_read_file,
#ifdef CONFIG_FAT_WRITE
		.write = file_fat_write,
		.unlink = fat_unlink,
		.mkdir = fat_mkdir,
#else
		.write = fs_write_unsupported,
		.unlink = fs_unlink_unsupported,
		.mkdir = fs_mkdir_unsupported,
#endif
		.uuid = fs_uuid_unsupported,
		.opendir = fat_opendir,
		.readdir = fat_readdir,
		.closedir = fat_closedir,
	},
#endif
#ifdef CONFIG_FS_EXT4
	{
		.fstype = FS_TYPE_EXT,
		.name = "ext4",
		.null_dev_desc_ok = false,
		.probe = ext4fs_probe,
		.close = ext4fs_close,
		.ls = ext4fs_ls,
		.exists = ext4fs_exists,
		.size = ext4fs_size,
		.read = ext4_read_file,
#ifdef CONFIG_CMD_EXT4_WRITE
		.write = ext4_write_file,
#else
		.write = fs_write_unsupported,
#endif
		.uuid = ext4fs_uuid,
		.opendir = fs_opendir_unsupported,
		.unlink = fs_unlink_unsupported,
		.mkdir = fs_mkdir_unsupported,
	},
#endif
#ifdef CONFIG_SANDBOX
	{
		.fstype = FS_TYPE_SANDBOX,
		.name = "sandbox",
		.null_dev_desc_ok = true,
		.probe = sandbox_fs_set_blk_dev,
		.close = sandbox_fs_close,
		.ls = sandbox_fs_ls,
		.exists = sandbox_fs_exists,
		.size = sandbox_fs_size,
		.read = fs_read_sandbox,
		.write = fs_write_sandbox,
		.uuid = fs_uuid_unsupported,
		.opendir = fs_opendir_unsupported,
		.unlink = fs_unlink_unsupported,
		.mkdir = fs_mkdir_unsupported,
	},
#endif
#ifdef CONFIG_CMD_UBIFS
	{
		.fstype = FS_TYPE_UBIFS,
		.name = "ubifs",
		.null_dev_desc_ok = true,
		.probe = ubifs_set_blk_dev,
		.close = ubifs_close,
		.ls = ubifs_ls,
		.exists = ubifs_exists,
		.size = ubifs_size,
		.read = ubifs_read,
		.write = fs_write_unsupported,
		.uuid = fs_uuid_unsupported,
		.opendir = fs_opendir_unsupported,
		.unlink = fs_unlink_unsupported,
		.mkdir = fs_mkdir_unsupported,
	},
#endif
#ifdef CONFIG_FS_BTRFS
	{
		.fstype = FS_TYPE_BTRFS,
		.name = "btrfs",
		.null_dev_desc_ok = false,
		.probe = btrfs_probe,
		.close = btrfs_close,
		.ls = btrfs_ls,
		.exists = btrfs_exists,
		.size = btrfs_size,
		.read = btrfs_read,
		.write = fs_write_unsupported,
		.uuid = btrfs_uuid,
		.opendir = fs_opendir_unsupported,
		.unlink = fs_unlink_unsupported,
		.mkdir = fs_mkdir_unsupported,
	},
#endif
	{
		.fstype = FS_TYPE_ANY,
		.name = "unsupported",
		.null_dev_desc_ok = true,
		.probe = fs_probe_unsupported,
		.close = fs_close_unsupported,
		.ls = fs_ls_unsupported,
		.exists = fs_exists_unsupported,
		.size = fs_size_unsupported,
		.read = fs_read_unsupported,
		.write = fs_write_unsupported,
		.uuid = fs_uuid_unsupported,
		.opendir = fs_opendir_unsupported,
		.unlink = fs_unlink_unsupported,
		.mkdir = fs_mkdir_unsupported,
	},
};

static struct fstype_info *fs_get_info(int fstype)
{
	struct fstype_info *info;
	int i;

	for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes) - 1; i++, info++) {
		if (fstype == info->fstype)
			return info;
	}

	/* Return the 'unsupported' sentinel */
	return info;
}

/**
 * fs_get_type_name() - Get type of current filesystem
 *
 * Return: Pointer to filesystem name
 *
 * Returns a string describing the current filesystem, or the sentinel
 * "unsupported" for any unrecognised filesystem.
 */
const char *fs_get_type_name(void)
{
	return fs_get_info(fs_type)->name;
}

int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
{
	struct fstype_info *info;
	int part, i;
#ifdef CONFIG_NEEDS_MANUAL_RELOC
	static int relocated;

	if (!relocated) {
		for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes);
				i++, info++) {
			info->name += gd->reloc_off;
			info->probe += gd->reloc_off;
			info->close += gd->reloc_off;
			info->ls += gd->reloc_off;
			info->read += gd->reloc_off;
			info->write += gd->reloc_off;
		}
		relocated = 1;
	}
#endif

	part = blk_get_device_part_str(ifname, dev_part_str, &fs_dev_desc,
					&fs_partition, 1);
	if (part < 0)
		return -1;

	for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) {
		if (fstype != FS_TYPE_ANY && info->fstype != FS_TYPE_ANY &&
				fstype != info->fstype)
			continue;

		if (!fs_dev_desc && !info->null_dev_desc_ok)
			continue;

		if (!info->probe(fs_dev_desc, &fs_partition)) {
			fs_type = info->fstype;
			fs_dev_part = part;
			return 0;
		}
	}

	return -1;
}

/* set current blk device w/ blk_desc + partition # */
int fs_set_blk_dev_with_part(struct blk_desc *desc, int part)
{
	struct fstype_info *info;
	int ret, i;

	if (part >= 1)
		ret = part_get_info(desc, part, &fs_partition);
	else
		ret = part_get_info_whole_disk(desc, &fs_partition);
	if (ret)
		return ret;
	fs_dev_desc = desc;

	for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) {
		if (!info->probe(fs_dev_desc, &fs_partition)) {
			fs_type = info->fstype;
			return 0;
		}
	}

	return -1;
}

static void fs_close(void)
{
	struct fstype_info *info = fs_get_info(fs_type);

	info->close();

	fs_type = FS_TYPE_ANY;
}

int fs_uuid(char *uuid_str)
{
	struct fstype_info *info = fs_get_info(fs_type);

	return info->uuid(uuid_str);
}

int fs_ls(const char *dirname)
{
	int ret;

	struct fstype_info *info = fs_get_info(fs_type);

	ret = info->ls(dirname);

	fs_type = FS_TYPE_ANY;
	fs_close();

	return ret;
}

int fs_exists(const char *filename)
{
	int ret;

	struct fstype_info *info = fs_get_info(fs_type);

	ret = info->exists(filename);

	fs_close();

	return ret;
}

int fs_size(const char *filename, loff_t *size)
{
	int ret;

	struct fstype_info *info = fs_get_info(fs_type);

	ret = info->size(filename, size);

	fs_close();

	return ret;
}

int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
	    loff_t *actread)
{
	struct fstype_info *info = fs_get_info(fs_type);
	void *buf;
	int ret;

	/*
	 * We don't actually know how many bytes are being read, since len==0
	 * means read the whole file.
	 */
	buf = map_sysmem(addr, len);
	ret = info->read(filename, buf, offset, len, actread);
	unmap_sysmem(buf);

	/* If we requested a specific number of bytes, check we got it */
	if (ret == 0 && len && *actread != len)
		debug("** %s shorter than offset + len **\n", filename);
	fs_close();

	return ret;
}

int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
	     loff_t *actwrite)
{
	struct fstype_info *info = fs_get_info(fs_type);
	void *buf;
	int ret;

	buf = map_sysmem(addr, len);
	ret = info->write(filename, buf, offset, len, actwrite);
	unmap_sysmem(buf);

	if (ret < 0 && len != *actwrite) {
		printf("** Unable to write file %s **\n", filename);
		ret = -1;
	}
	fs_close();

	return ret;
}

struct fs_dir_stream *fs_opendir(const char *filename)
{
	struct fstype_info *info = fs_get_info(fs_type);
	struct fs_dir_stream *dirs = NULL;
	int ret;

	ret = info->opendir(filename, &dirs);
	fs_close();
	if (ret) {
		errno = -ret;
		return NULL;
	}

	dirs->desc = fs_dev_desc;
	dirs->part = fs_dev_part;

	return dirs;
}

struct fs_dirent *fs_readdir(struct fs_dir_stream *dirs)
{
	struct fstype_info *info;
	struct fs_dirent *dirent;
	int ret;

	fs_set_blk_dev_with_part(dirs->desc, dirs->part);
	info = fs_get_info(fs_type);

	ret = info->readdir(dirs, &dirent);
	fs_close();
	if (ret) {
		errno = -ret;
		return NULL;
	}

	return dirent;
}

void fs_closedir(struct fs_dir_stream *dirs)
{
	struct fstype_info *info;

	if (!dirs)
		return;

	fs_set_blk_dev_with_part(dirs->desc, dirs->part);
	info = fs_get_info(fs_type);

	info->closedir(dirs);
	fs_close();
}

int fs_unlink(const char *filename)
{
	int ret;

	struct fstype_info *info = fs_get_info(fs_type);

	ret = info->unlink(filename);

	fs_type = FS_TYPE_ANY;
	fs_close();

	return ret;
}

int fs_mkdir(const char *dirname)
{
	int ret;

	struct fstype_info *info = fs_get_info(fs_type);

	ret = info->mkdir(dirname);

	fs_type = FS_TYPE_ANY;
	fs_close();

	return ret;
}

int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
		int fstype)
{
	loff_t size;

	if (argc != 4)
		return CMD_RET_USAGE;

	if (fs_set_blk_dev(argv[1], argv[2], fstype))
		return 1;

	if (fs_size(argv[3], &size) < 0)
		return CMD_RET_FAILURE;

	env_set_hex("filesize", size);

	return 0;
}

int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
		int fstype)
{
	unsigned long addr;
	const char *addr_str;
	const char *filename;
	loff_t bytes;
	loff_t pos;
	loff_t len_read;
	int ret;
	unsigned long time;
	char *ep;

	if (argc < 2)
		return CMD_RET_USAGE;
	if (argc > 7)
		return CMD_RET_USAGE;

	if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
		return 1;

	if (argc >= 4) {
		addr = simple_strtoul(argv[3], &ep, 16);
		if (ep == argv[3] || *ep != '\0')
			return CMD_RET_USAGE;
	} else {
		addr_str = env_get("loadaddr");
		if (addr_str != NULL)
			addr = simple_strtoul(addr_str, NULL, 16);
		else
			addr = CONFIG_SYS_LOAD_ADDR;
	}
	if (argc >= 5) {
		filename = argv[4];
	} else {
		filename = env_get("bootfile");
		if (!filename) {
			puts("** No boot file defined **\n");
			return 1;
		}
	}
	if (argc >= 6)
		bytes = simple_strtoul(argv[5], NULL, 16);
	else
		bytes = 0;
	if (argc >= 7)
		pos = simple_strtoul(argv[6], NULL, 16);
	else
		pos = 0;

	time = get_timer(0);
	ret = fs_read(filename, addr, pos, bytes, &len_read);
	time = get_timer(time);
	if (ret < 0)
		return 1;

	printf("%llu bytes read in %lu ms", len_read, time);
	if (time > 0) {
		puts(" (");
		print_size(div_u64(len_read, time) * 1000, "/s");
		puts(")");
	}
	puts("\n");

	env_set_hex("fileaddr", addr);
	env_set_hex("filesize", len_read);

	return 0;
}

int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
	int fstype)
{
	if (argc < 2)
		return CMD_RET_USAGE;
	if (argc > 4)
		return CMD_RET_USAGE;

	if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
		return 1;

	if (fs_ls(argc >= 4 ? argv[3] : "/"))
		return 1;

	return 0;
}

int file_exists(const char *dev_type, const char *dev_part, const char *file,
		int fstype)
{
	if (fs_set_blk_dev(dev_type, dev_part, fstype))
		return 0;

	return fs_exists(file);
}

int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
		int fstype)
{
	unsigned long addr;
	const char *filename;
	loff_t bytes;
	loff_t pos;
	loff_t len;
	int ret;
	unsigned long time;

	if (argc < 6 || argc > 7)
		return CMD_RET_USAGE;

	if (fs_set_blk_dev(argv[1], argv[2], fstype))
		return 1;

	addr = simple_strtoul(argv[3], NULL, 16);
	filename = argv[4];
	bytes = simple_strtoul(argv[5], NULL, 16);
	if (argc >= 7)
		pos = simple_strtoul(argv[6], NULL, 16);
	else
		pos = 0;

	time = get_timer(0);
	ret = fs_write(filename, addr, pos, bytes, &len);
	time = get_timer(time);
	if (ret < 0)
		return 1;

	printf("%llu bytes written in %lu ms", len, time);
	if (time > 0) {
		puts(" (");
		print_size(div_u64(len, time) * 1000, "/s");
		puts(")");
	}
	puts("\n");

	return 0;
}

int do_fs_uuid(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
		int fstype)
{
	int ret;
	char uuid[37];
	memset(uuid, 0, sizeof(uuid));

	if (argc < 3 || argc > 4)
		return CMD_RET_USAGE;

	if (fs_set_blk_dev(argv[1], argv[2], fstype))
		return 1;

	ret = fs_uuid(uuid);
	if (ret)
		return CMD_RET_FAILURE;

	if (argc == 4)
		env_set(argv[3], uuid);
	else
		printf("%s\n", uuid);

	return CMD_RET_SUCCESS;
}

int do_fs_type(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	struct fstype_info *info;

	if (argc < 3 || argc > 4)
		return CMD_RET_USAGE;

	if (fs_set_blk_dev(argv[1], argv[2], FS_TYPE_ANY))
		return 1;

	info = fs_get_info(fs_type);

	if (argc == 4)
		env_set(argv[3], info->name);
	else
		printf("%s\n", info->name);

	return CMD_RET_SUCCESS;
}

int do_rm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
	  int fstype)
{
	if (argc != 4)
		return CMD_RET_USAGE;

	if (fs_set_blk_dev(argv[1], argv[2], fstype))
		return 1;

	if (fs_unlink(argv[3]))
		return 1;

	return 0;
}

int do_mkdir(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
	     int fstype)
{
	int ret;

	if (argc != 4)
		return CMD_RET_USAGE;

	if (fs_set_blk_dev(argv[1], argv[2], fstype))
		return 1;

	ret = fs_mkdir(argv[3]);
	if (ret) {
		printf("** Unable to create a directory \"%s\" **\n", argv[3]);
		return 1;
	}

	return 0;
}
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0
045fa1e1 SW	2	/*
045fa1e1 SW	3	* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
045fa1e1 SW	4	*/
	5
	6	#include <config.h>
59e890ef	7	#include <errno.h>
045fa1e1	8	#include <common.h>
0eb25b61	9	#include <mapmem.h>
045fa1e1 SW	10	#include <part.h>
	11	#include <ext4fs.h>
	12	#include <fat.h>
	13	#include <fs.h>
92ccc96b	14	#include <sandboxfs.h>
251cee0d	15	#include <ubifs_uboot.h>
0c936ee3	16	#include <btrfs.h>
117e0507	17	#include <asm/io.h>
9e374e7b TR	18	#include <div64.h>
9e374e7b TR	19	#include <linux/math64.h>
045fa1e1	20
a1b231ce SW	21	DECLARE_GLOBAL_DATA_PTR;
a1b231ce SW	22
4101f687	23	static struct blk_desc *fs_dev_desc;
4bbcc965	24	static int fs_dev_part;
045fa1e1 SW	25	static disk_partition_t fs_partition;
	26	static int fs_type = FS_TYPE_ANY;
	27
4101f687	28	static inline int fs_probe_unsupported(struct blk_desc *fs_dev_desc,
2ded0d47	29	disk_partition_t *fs_partition)
436e2b73 SG	30	{
	31	printf(" Unrecognized filesystem type \n");
	32	return -1;
	33	}
	34
045fa1e1 SW	35	static inline int fs_ls_unsupported(const char *dirname)
045fa1e1 SW	36	{
045fa1e1 SW	37	return -1;
	38	}
	39
89191d62 RC	40	/* generic implementation of ls in terms of opendir/readdir/closedir */
	41	__maybe_unused
	42	static int fs_ls_generic(const char *dirname)
	43	{
	44	struct fs_dir_stream *dirs;
	45	struct fs_dirent *dent;
	46	int nfiles = 0, ndirs = 0;
	47
	48	dirs = fs_opendir(dirname);
	49	if (!dirs)
	50	return -errno;
	51
	52	while ((dent = fs_readdir(dirs))) {
	53	if (dent->type == FS_DT_DIR) {
	54	printf(" %s/\n", dent->name);
	55	ndirs++;
	56	} else {
	57	printf(" %8lld %s\n", dent->size, dent->name);
	58	nfiles++;
	59	}
	60	}
	61
	62	fs_closedir(dirs);
	63
	64	printf("\n%d file(s), %d dir(s)\n\n", nfiles, ndirs);
	65
	66	return 0;
	67	}
	68
6152916a SW	69	static inline int fs_exists_unsupported(const char *filename)
	70	{
	71	return 0;
	72	}
	73
d455d878	74	static inline int fs_size_unsupported(const char filename, loff_t size)
cf659819 SW	75	{
	76	return -1;
	77	}
	78
117e0507	79	static inline int fs_read_unsupported(const char filename, void buf,
d455d878 SR	80	loff_t offset, loff_t len,
d455d878 SR	81	loff_t *actread)
045fa1e1	82	{
045fa1e1 SW	83	return -1;
	84	}
	85
a8f6ab52	86	static inline int fs_write_unsupported(const char filename, void buf,
d455d878 SR	87	loff_t offset, loff_t len,
d455d878 SR	88	loff_t *actwrite)
a8f6ab52 SG	89	{
	90	return -1;
	91	}
	92
436e2b73 SG	93	static inline void fs_close_unsupported(void)
	94	{
	95	}
	96
59e890ef CG	97	static inline int fs_uuid_unsupported(char *uuid_str)
	98	{
	99	return -1;
	100	}
	101
4bbcc965 RC	102	static inline int fs_opendir_unsupported(const char *filename,
	103	struct fs_dir_stream **dirs)
	104	{
	105	return -EACCES;
	106	}
	107
e2519daf AT	108	static inline int fs_unlink_unsupported(const char *filename)
	109	{
	110	return -1;
	111	}
	112
e7074cff AT	113	static inline int fs_mkdir_unsupported(const char *dirname)
	114	{
	115	return -1;
	116	}
	117
436e2b73	118	struct fstype_info {
045fa1e1	119	int fstype;
1a1ad8e0	120	char *name;
377202b5 SW	121	/*
	122	* Is it legal to pass NULL as .probe()'s fs_dev_desc parameter? This
	123	* should be false in most cases. For "virtual" filesystems which
	124	* aren't based on a U-Boot block device (e.g. sandbox), this can be
ca230b09	125	* set to true. This should also be true for the dummy entry at the end
377202b5 SW	126	* of fstypes[], since that is essentially a "virtual" (non-existent)
	127	* filesystem.
	128	*/
	129	bool null_dev_desc_ok;
4101f687	130	int (probe)(struct blk_desc fs_dev_desc,
2ded0d47	131	disk_partition_t *fs_partition);
436e2b73	132	int (ls)(const char dirname);
6152916a	133	int (exists)(const char filename);
d455d878 SR	134	int (size)(const char filename, loff_t *size);
	135	int (read)(const char filename, void *buf, loff_t offset,
	136	loff_t len, loff_t *actread);
	137	int (write)(const char filename, void *buf, loff_t offset,
	138	loff_t len, loff_t *actwrite);
436e2b73	139	void (*close)(void);
59e890ef	140	int (uuid)(char uuid_str);
4bbcc965 RC	141	/*
	142	* Open a directory stream. On success return 0 and directory
	143	* stream pointer via 'dirsp'. On error, return -errno. See
	144	* fs_opendir().
	145	*/
	146	int (opendir)(const char filename, struct fs_dir_stream **dirsp);
	147	/*
	148	* Read next entry from directory stream. On success return 0
	149	* and directory entry pointer via 'dentp'. On error return
	150	* -errno. See fs_readdir().
	151	*/
	152	int (readdir)(struct fs_dir_stream dirs, struct fs_dirent **dentp);
	153	/* see fs_closedir() */
	154	void (closedir)(struct fs_dir_stream dirs);
e2519daf	155	int (unlink)(const char filename);
e7074cff	156	int (mkdir)(const char dirname);
436e2b73 SG	157	};
	158
	159	static struct fstype_info fstypes[] = {
	160	#ifdef CONFIG_FS_FAT
045fa1e1 SW	161	{
045fa1e1 SW	162	.fstype = FS_TYPE_FAT,
1a1ad8e0	163	.name = "fat",
377202b5	164	.null_dev_desc_ok = false,
e6d52415 SG	165	.probe = fat_set_blk_dev,
e6d52415 SG	166	.close = fat_close,
89191d62	167	.ls = fs_ls_generic,
b7b5f319	168	.exists = fat_exists,
cf659819	169	.size = fat_size,
e6d52415	170	.read = fat_read_file,
d455d878 SR	171	#ifdef CONFIG_FAT_WRITE
d455d878 SR	172	.write = file_fat_write,
f8240ce9	173	.unlink = fat_unlink,
31a18d57	174	.mkdir = fat_mkdir,
d455d878	175	#else
bd6fb31f	176	.write = fs_write_unsupported,
f8240ce9	177	.unlink = fs_unlink_unsupported,
31a18d57	178	.mkdir = fs_mkdir_unsupported,
d455d878	179	#endif
59e890ef	180	.uuid = fs_uuid_unsupported,
89191d62 RC	181	.opendir = fat_opendir,
	182	.readdir = fat_readdir,
	183	.closedir = fat_closedir,
045fa1e1	184	},
436e2b73 SG	185	#endif
436e2b73 SG	186	#ifdef CONFIG_FS_EXT4
045fa1e1 SW	187	{
045fa1e1 SW	188	.fstype = FS_TYPE_EXT,
1a1ad8e0	189	.name = "ext4",
377202b5	190	.null_dev_desc_ok = false,
e6d52415 SG	191	.probe = ext4fs_probe,
e6d52415 SG	192	.close = ext4fs_close,
436e2b73	193	.ls = ext4fs_ls,
55af5c93	194	.exists = ext4fs_exists,
cf659819	195	.size = ext4fs_size,
e6d52415	196	.read = ext4_read_file,
d455d878 SR	197	#ifdef CONFIG_CMD_EXT4_WRITE
	198	.write = ext4_write_file,
	199	#else
bd6fb31f	200	.write = fs_write_unsupported,
d455d878	201	#endif
59e890ef	202	.uuid = ext4fs_uuid,
4bbcc965	203	.opendir = fs_opendir_unsupported,
e2519daf	204	.unlink = fs_unlink_unsupported,
e7074cff	205	.mkdir = fs_mkdir_unsupported,
436e2b73	206	},
92ccc96b SG	207	#endif
	208	#ifdef CONFIG_SANDBOX
	209	{
	210	.fstype = FS_TYPE_SANDBOX,
1a1ad8e0	211	.name = "sandbox",
377202b5	212	.null_dev_desc_ok = true,
92ccc96b SG	213	.probe = sandbox_fs_set_blk_dev,
	214	.close = sandbox_fs_close,
	215	.ls = sandbox_fs_ls,
0a30aa1e	216	.exists = sandbox_fs_exists,
cf659819	217	.size = sandbox_fs_size,
92ccc96b	218	.read = fs_read_sandbox,
7eb2c8d5	219	.write = fs_write_sandbox,
59e890ef	220	.uuid = fs_uuid_unsupported,
4bbcc965	221	.opendir = fs_opendir_unsupported,
e2519daf	222	.unlink = fs_unlink_unsupported,
e7074cff	223	.mkdir = fs_mkdir_unsupported,
92ccc96b	224	},
251cee0d HG	225	#endif
	226	#ifdef CONFIG_CMD_UBIFS
	227	{
	228	.fstype = FS_TYPE_UBIFS,
	229	.name = "ubifs",
	230	.null_dev_desc_ok = true,
	231	.probe = ubifs_set_blk_dev,
	232	.close = ubifs_close,
	233	.ls = ubifs_ls,
	234	.exists = ubifs_exists,
	235	.size = ubifs_size,
	236	.read = ubifs_read,
	237	.write = fs_write_unsupported,
	238	.uuid = fs_uuid_unsupported,
4bbcc965	239	.opendir = fs_opendir_unsupported,
e2519daf	240	.unlink = fs_unlink_unsupported,
e7074cff	241	.mkdir = fs_mkdir_unsupported,
251cee0d	242	},
0c936ee3 MB	243	#endif
	244	#ifdef CONFIG_FS_BTRFS
	245	{
	246	.fstype = FS_TYPE_BTRFS,
	247	.name = "btrfs",
	248	.null_dev_desc_ok = false,
	249	.probe = btrfs_probe,
	250	.close = btrfs_close,
	251	.ls = btrfs_ls,
	252	.exists = btrfs_exists,
	253	.size = btrfs_size,
	254	.read = btrfs_read,
	255	.write = fs_write_unsupported,
	256	.uuid = btrfs_uuid,
38fc683d	257	.opendir = fs_opendir_unsupported,
e2519daf	258	.unlink = fs_unlink_unsupported,
e7074cff	259	.mkdir = fs_mkdir_unsupported,
0c936ee3	260	},
436e2b73 SG	261	#endif
	262	{
	263	.fstype = FS_TYPE_ANY,
1a1ad8e0	264	.name = "unsupported",
377202b5	265	.null_dev_desc_ok = true,
436e2b73 SG	266	.probe = fs_probe_unsupported,
	267	.close = fs_close_unsupported,
	268	.ls = fs_ls_unsupported,
6152916a	269	.exists = fs_exists_unsupported,
cf659819	270	.size = fs_size_unsupported,
436e2b73	271	.read = fs_read_unsupported,
a8f6ab52	272	.write = fs_write_unsupported,
59e890ef	273	.uuid = fs_uuid_unsupported,
4bbcc965	274	.opendir = fs_opendir_unsupported,
e2519daf	275	.unlink = fs_unlink_unsupported,
e7074cff	276	.mkdir = fs_mkdir_unsupported,
045fa1e1 SW	277	},
	278	};
	279
c6f548d2 SG	280	static struct fstype_info *fs_get_info(int fstype)
	281	{
	282	struct fstype_info *info;
	283	int i;
	284
	285	for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes) - 1; i++, info++) {
	286	if (fstype == info->fstype)
	287	return info;
	288	}
	289
	290	/* Return the 'unsupported' sentinel */
	291	return info;
	292	}
	293
0d488e8f AK	294	/**
	295	* fs_get_type_name() - Get type of current filesystem
	296	*
	297	* Return: Pointer to filesystem name
	298	*
	299	* Returns a string describing the current filesystem, or the sentinel
	300	* "unsupported" for any unrecognised filesystem.
	301	*/
	302	const char *fs_get_type_name(void)
	303	{
	304	return fs_get_info(fs_type)->name;
	305	}
	306
045fa1e1 SW	307	int fs_set_blk_dev(const char ifname, const char dev_part_str, int fstype)
045fa1e1 SW	308	{
436e2b73	309	struct fstype_info *info;
045fa1e1	310	int part, i;
a1b231ce SW	311	#ifdef CONFIG_NEEDS_MANUAL_RELOC
	312	static int relocated;
	313
	314	if (!relocated) {
436e2b73 SG	315	for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes);
436e2b73 SG	316	i++, info++) {
1a1ad8e0	317	info->name += gd->reloc_off;
436e2b73 SG	318	info->probe += gd->reloc_off;
	319	info->close += gd->reloc_off;
	320	info->ls += gd->reloc_off;
	321	info->read += gd->reloc_off;
a8f6ab52	322	info->write += gd->reloc_off;
436e2b73	323	}
a1b231ce SW	324	relocated = 1;
	325	}
	326	#endif
045fa1e1	327
e35929e4	328	part = blk_get_device_part_str(ifname, dev_part_str, &fs_dev_desc,
045fa1e1 SW	329	&fs_partition, 1);
	330	if (part < 0)
	331	return -1;
	332
436e2b73 SG	333	for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) {
	334	if (fstype != FS_TYPE_ANY && info->fstype != FS_TYPE_ANY &&
	335	fstype != info->fstype)
045fa1e1 SW	336	continue;
045fa1e1 SW	337
377202b5 SW	338	if (!fs_dev_desc && !info->null_dev_desc_ok)
	339	continue;
	340
4bbcc965 RC	341	if (!info->probe(fs_dev_desc, &fs_partition)) {
	342	fs_type = info->fstype;
	343	fs_dev_part = part;
	344	return 0;
	345	}
	346	}
	347
	348	return -1;
	349	}
	350
	351	/* set current blk device w/ blk_desc + partition # */
	352	int fs_set_blk_dev_with_part(struct blk_desc *desc, int part)
	353	{
	354	struct fstype_info *info;
	355	int ret, i;
	356
	357	if (part >= 1)
	358	ret = part_get_info(desc, part, &fs_partition);
	359	else
	360	ret = part_get_info_whole_disk(desc, &fs_partition);
	361	if (ret)
	362	return ret;
	363	fs_dev_desc = desc;
	364
	365	for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) {
2ded0d47	366	if (!info->probe(fs_dev_desc, &fs_partition)) {
436e2b73	367	fs_type = info->fstype;
045fa1e1 SW	368	return 0;
	369	}
	370	}
	371
045fa1e1 SW	372	return -1;
	373	}
	374
	375	static void fs_close(void)
	376	{
c6f548d2	377	struct fstype_info *info = fs_get_info(fs_type);
045fa1e1	378
c6f548d2	379	info->close();
e6d52415	380
045fa1e1 SW	381	fs_type = FS_TYPE_ANY;
	382	}
	383
59e890ef CG	384	int fs_uuid(char *uuid_str)
	385	{
	386	struct fstype_info *info = fs_get_info(fs_type);
	387
	388	return info->uuid(uuid_str);
	389	}
	390
045fa1e1 SW	391	int fs_ls(const char *dirname)
	392	{
	393	int ret;
	394
c6f548d2 SG	395	struct fstype_info *info = fs_get_info(fs_type);
	396
	397	ret = info->ls(dirname);
045fa1e1	398
e6d52415	399	fs_type = FS_TYPE_ANY;
045fa1e1 SW	400	fs_close();
	401
	402	return ret;
	403	}
	404
6152916a SW	405	int fs_exists(const char *filename)
	406	{
	407	int ret;
	408
	409	struct fstype_info *info = fs_get_info(fs_type);
	410
	411	ret = info->exists(filename);
	412
	413	fs_close();
	414
	415	return ret;
	416	}
	417
d455d878	418	int fs_size(const char filename, loff_t size)
cf659819 SW	419	{
	420	int ret;
	421
	422	struct fstype_info *info = fs_get_info(fs_type);
	423
d455d878	424	ret = info->size(filename, size);
cf659819 SW	425
	426	fs_close();
	427
	428	return ret;
	429	}
	430
d455d878 SR	431	int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
d455d878 SR	432	loff_t *actread)
045fa1e1	433	{
c6f548d2	434	struct fstype_info *info = fs_get_info(fs_type);
117e0507	435	void *buf;
045fa1e1 SW	436	int ret;
045fa1e1 SW	437
117e0507 SG	438	/*
	439	* We don't actually know how many bytes are being read, since len==0
	440	* means read the whole file.
	441	*/
	442	buf = map_sysmem(addr, len);
d455d878	443	ret = info->read(filename, buf, offset, len, actread);
117e0507	444	unmap_sysmem(buf);
045fa1e1	445
c6f548d2	446	/* If we requested a specific number of bytes, check we got it */
7a3e70cf	447	if (ret == 0 && len && *actread != len)
a327bde7	448	debug(" %s shorter than offset + len \n", filename);
045fa1e1 SW	449	fs_close();
	450
	451	return ret;
	452	}
	453
d455d878 SR	454	int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
d455d878 SR	455	loff_t *actwrite)
a8f6ab52 SG	456	{
	457	struct fstype_info *info = fs_get_info(fs_type);
	458	void *buf;
	459	int ret;
	460
a8f6ab52	461	buf = map_sysmem(addr, len);
d455d878	462	ret = info->write(filename, buf, offset, len, actwrite);
a8f6ab52 SG	463	unmap_sysmem(buf);
a8f6ab52 SG	464
d455d878	465	if (ret < 0 && len != *actwrite) {
a8f6ab52 SG	466	printf(" Unable to write file %s \n", filename);
	467	ret = -1;
	468	}
	469	fs_close();
	470
	471	return ret;
	472	}
	473
4bbcc965 RC	474	struct fs_dir_stream fs_opendir(const char filename)
	475	{
	476	struct fstype_info *info = fs_get_info(fs_type);
	477	struct fs_dir_stream *dirs = NULL;
	478	int ret;
	479
	480	ret = info->opendir(filename, &dirs);
	481	fs_close();
	482	if (ret) {
	483	errno = -ret;
	484	return NULL;
	485	}
	486
	487	dirs->desc = fs_dev_desc;
	488	dirs->part = fs_dev_part;
	489
	490	return dirs;
	491	}
	492
	493	struct fs_dirent fs_readdir(struct fs_dir_stream dirs)
	494	{
	495	struct fstype_info *info;
	496	struct fs_dirent *dirent;
	497	int ret;
	498
	499	fs_set_blk_dev_with_part(dirs->desc, dirs->part);
	500	info = fs_get_info(fs_type);
	501
	502	ret = info->readdir(dirs, &dirent);
	503	fs_close();
	504	if (ret) {
	505	errno = -ret;
	506	return NULL;
	507	}
	508
	509	return dirent;
	510	}
	511
	512	void fs_closedir(struct fs_dir_stream *dirs)
	513	{
	514	struct fstype_info *info;
	515
	516	if (!dirs)
	517	return;
	518
	519	fs_set_blk_dev_with_part(dirs->desc, dirs->part);
	520	info = fs_get_info(fs_type);
	521
	522	info->closedir(dirs);
	523	fs_close();
	524	}
	525
e2519daf AT	526	int fs_unlink(const char *filename)
	527	{
	528	int ret;
	529
	530	struct fstype_info *info = fs_get_info(fs_type);
	531
	532	ret = info->unlink(filename);
	533
	534	fs_type = FS_TYPE_ANY;
	535	fs_close();
	536
	537	return ret;
	538	}
4bbcc965	539
e7074cff AT	540	int fs_mkdir(const char *dirname)
	541	{
	542	int ret;
	543
	544	struct fstype_info *info = fs_get_info(fs_type);
	545
	546	ret = info->mkdir(dirname);
	547
	548	fs_type = FS_TYPE_ANY;
	549	fs_close();
	550
	551	return ret;
	552	}
	553
cf659819 SW	554	int do_size(cmd_tbl_t cmdtp, int flag, int argc, char const argv[],
	555	int fstype)
	556	{
d455d878	557	loff_t size;
cf659819 SW	558
	559	if (argc != 4)
	560	return CMD_RET_USAGE;
	561
	562	if (fs_set_blk_dev(argv[1], argv[2], fstype))
	563	return 1;
	564
d455d878	565	if (fs_size(argv[3], &size) < 0)
cf659819 SW	566	return CMD_RET_FAILURE;
cf659819 SW	567
018f5303	568	env_set_hex("filesize", size);
cf659819 SW	569
	570	return 0;
	571	}
	572
f9b55e22	573	int do_load(cmd_tbl_t cmdtp, int flag, int argc, char const argv[],
b770e88a	574	int fstype)
045fa1e1 SW	575	{
	576	unsigned long addr;
	577	const char *addr_str;
	578	const char *filename;
d455d878 SR	579	loff_t bytes;
	580	loff_t pos;
	581	loff_t len_read;
	582	int ret;
da1fd96c	583	unsigned long time;
949bbd7c	584	char *ep;
045fa1e1	585
e9b0f99e SW	586	if (argc < 2)
	587	return CMD_RET_USAGE;
	588	if (argc > 7)
045fa1e1 SW	589	return CMD_RET_USAGE;
045fa1e1 SW	590
e9b0f99e	591	if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
045fa1e1 SW	592	return 1;
	593
	594	if (argc >= 4) {
949bbd7c PM	595	addr = simple_strtoul(argv[3], &ep, 16);
	596	if (ep == argv[3] \|\| *ep != '\0')
	597	return CMD_RET_USAGE;
045fa1e1	598	} else {
00caae6d	599	addr_str = env_get("loadaddr");
045fa1e1 SW	600	if (addr_str != NULL)
	601	addr = simple_strtoul(addr_str, NULL, 16);
	602	else
	603	addr = CONFIG_SYS_LOAD_ADDR;
	604	}
	605	if (argc >= 5) {
	606	filename = argv[4];
	607	} else {
00caae6d	608	filename = env_get("bootfile");
045fa1e1 SW	609	if (!filename) {
	610	puts(" No boot file defined \n");
	611	return 1;
	612	}
	613	}
	614	if (argc >= 6)
b770e88a	615	bytes = simple_strtoul(argv[5], NULL, 16);
045fa1e1 SW	616	else
	617	bytes = 0;
	618	if (argc >= 7)
b770e88a	619	pos = simple_strtoul(argv[6], NULL, 16);
045fa1e1 SW	620	else
	621	pos = 0;
	622
da1fd96c	623	time = get_timer(0);
d455d878	624	ret = fs_read(filename, addr, pos, bytes, &len_read);
da1fd96c	625	time = get_timer(time);
d455d878	626	if (ret < 0)
045fa1e1 SW	627	return 1;
045fa1e1 SW	628
d455d878	629	printf("%llu bytes read in %lu ms", len_read, time);
da1fd96c AB	630	if (time > 0) {
da1fd96c AB	631	puts(" (");
9e374e7b	632	print_size(div_u64(len_read, time) * 1000, "/s");
da1fd96c AB	633	puts(")");
	634	}
	635	puts("\n");
045fa1e1	636
018f5303 SG	637	env_set_hex("fileaddr", addr);
018f5303 SG	638	env_set_hex("filesize", len_read);
045fa1e1 SW	639
	640	return 0;
	641	}
	642
	643	int do_ls(cmd_tbl_t cmdtp, int flag, int argc, char const argv[],
	644	int fstype)
	645	{
	646	if (argc < 2)
	647	return CMD_RET_USAGE;
e9b0f99e SW	648	if (argc > 4)
e9b0f99e SW	649	return CMD_RET_USAGE;
045fa1e1 SW	650
	651	if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
	652	return 1;
	653
e9b0f99e	654	if (fs_ls(argc >= 4 ? argv[3] : "/"))
045fa1e1 SW	655	return 1;
	656
	657	return 0;
	658	}
a8f6ab52	659
6152916a SW	660	int file_exists(const char dev_type, const char dev_part, const char *file,
	661	int fstype)
	662	{
	663	if (fs_set_blk_dev(dev_type, dev_part, fstype))
	664	return 0;
	665
	666	return fs_exists(file);
	667	}
	668
a8f6ab52	669	int do_save(cmd_tbl_t cmdtp, int flag, int argc, char const argv[],
b770e88a	670	int fstype)
a8f6ab52 SG	671	{
	672	unsigned long addr;
	673	const char *filename;
d455d878 SR	674	loff_t bytes;
	675	loff_t pos;
	676	loff_t len;
	677	int ret;
a8f6ab52 SG	678	unsigned long time;
	679
	680	if (argc < 6 \|\| argc > 7)
	681	return CMD_RET_USAGE;
	682
	683	if (fs_set_blk_dev(argv[1], argv[2], fstype))
	684	return 1;
	685
d455d878 SR	686	addr = simple_strtoul(argv[3], NULL, 16);
d455d878 SR	687	filename = argv[4];
b770e88a	688	bytes = simple_strtoul(argv[5], NULL, 16);
a8f6ab52	689	if (argc >= 7)
b770e88a	690	pos = simple_strtoul(argv[6], NULL, 16);
a8f6ab52 SG	691	else
	692	pos = 0;
	693
	694	time = get_timer(0);
d455d878	695	ret = fs_write(filename, addr, pos, bytes, &len);
a8f6ab52	696	time = get_timer(time);
d455d878	697	if (ret < 0)
a8f6ab52 SG	698	return 1;
a8f6ab52 SG	699
d455d878	700	printf("%llu bytes written in %lu ms", len, time);
a8f6ab52 SG	701	if (time > 0) {
a8f6ab52 SG	702	puts(" (");
9e374e7b	703	print_size(div_u64(len, time) * 1000, "/s");
a8f6ab52 SG	704	puts(")");
	705	}
	706	puts("\n");
	707
	708	return 0;
	709	}
59e890ef CG	710
	711	int do_fs_uuid(cmd_tbl_t cmdtp, int flag, int argc, char const argv[],
	712	int fstype)
	713	{
	714	int ret;
	715	char uuid[37];
	716	memset(uuid, 0, sizeof(uuid));
	717
	718	if (argc < 3 \|\| argc > 4)
	719	return CMD_RET_USAGE;
	720
	721	if (fs_set_blk_dev(argv[1], argv[2], fstype))
	722	return 1;
	723
	724	ret = fs_uuid(uuid);
	725	if (ret)
	726	return CMD_RET_FAILURE;
	727
	728	if (argc == 4)
382bee57	729	env_set(argv[3], uuid);
59e890ef CG	730	else
	731	printf("%s\n", uuid);
	732
	733	return CMD_RET_SUCCESS;
	734	}
1a1ad8e0 SS	735
	736	int do_fs_type(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	737	{
	738	struct fstype_info *info;
	739
	740	if (argc < 3 \|\| argc > 4)
	741	return CMD_RET_USAGE;
	742
	743	if (fs_set_blk_dev(argv[1], argv[2], FS_TYPE_ANY))
	744	return 1;
	745
	746	info = fs_get_info(fs_type);
	747
	748	if (argc == 4)
382bee57	749	env_set(argv[3], info->name);
1a1ad8e0 SS	750	else
	751	printf("%s\n", info->name);
	752
	753	return CMD_RET_SUCCESS;
	754	}
	755
e2519daf AT	756	int do_rm(cmd_tbl_t cmdtp, int flag, int argc, char const argv[],
	757	int fstype)
	758	{
	759	if (argc != 4)
	760	return CMD_RET_USAGE;
	761
	762	if (fs_set_blk_dev(argv[1], argv[2], fstype))
	763	return 1;
	764
	765	if (fs_unlink(argv[3]))
	766	return 1;
	767
	768	return 0;
	769	}
	770
e7074cff AT	771	int do_mkdir(cmd_tbl_t cmdtp, int flag, int argc, char const argv[],
	772	int fstype)
	773	{
	774	int ret;
	775
	776	if (argc != 4)
	777	return CMD_RET_USAGE;
	778
	779	if (fs_set_blk_dev(argv[1], argv[2], fstype))
	780	return 1;
	781
	782	ret = fs_mkdir(argv[3]);
	783	if (ret) {
	784	printf(" Unable to create a directory \"%s\" \n", argv[3]);
	785	return 1;
	786	}
	787
	788	return 0;
	789	}