u-boot/cmd/fs.c
Jean-Jacques Hiblot aaa12157c7 fs: Add a new command to create symbolic links
The command line is:
ln <interface> <dev[:part]> target linkname

Currently symbolic links are supported only in ext4 and only if the option
CMD_EXT4_WRITE is enabled.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2019-04-09 20:04:03 -04:00

107 lines
3.1 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
*
* Inspired by cmd_ext_common.c, cmd_fat.c.
*/
#include <common.h>
#include <command.h>
#include <fs.h>
#include <efi_loader.h>
static int do_size_wrapper(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
return do_size(cmdtp, flag, argc, argv, FS_TYPE_ANY);
}
U_BOOT_CMD(
size, 4, 0, do_size_wrapper,
"determine a file's size",
"<interface> <dev[:part]> <filename>\n"
" - Find file 'filename' from 'dev' on 'interface'\n"
" and determine its size."
);
static int do_load_wrapper(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
#ifdef CONFIG_CMD_BOOTEFI
efi_set_bootdev(argv[1], (argc > 2) ? argv[2] : "",
(argc > 4) ? argv[4] : "");
#endif
return do_load(cmdtp, flag, argc, argv, FS_TYPE_ANY);
}
U_BOOT_CMD(
load, 7, 0, do_load_wrapper,
"load binary file from a filesystem",
"<interface> [<dev[:part]> [<addr> [<filename> [bytes [pos]]]]]\n"
" - Load binary file 'filename' from partition 'part' on device\n"
" type 'interface' instance 'dev' to address 'addr' in memory.\n"
" 'bytes' gives the size to load in bytes.\n"
" If 'bytes' is 0 or omitted, the file is read until the end.\n"
" 'pos' gives the file byte position to start reading from.\n"
" If 'pos' is 0 or omitted, the file is read from the start."
)
static int do_save_wrapper(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
return do_save(cmdtp, flag, argc, argv, FS_TYPE_ANY);
}
U_BOOT_CMD(
save, 7, 0, do_save_wrapper,
"save file to a filesystem",
"<interface> <dev[:part]> <addr> <filename> bytes [pos]\n"
" - Save binary file 'filename' to partition 'part' on device\n"
" type 'interface' instance 'dev' from addr 'addr' in memory.\n"
" 'bytes' gives the size to save in bytes and is mandatory.\n"
" 'pos' gives the file byte position to start writing to.\n"
" If 'pos' is 0 or omitted, the file is written from the start."
)
static int do_ls_wrapper(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
return do_ls(cmdtp, flag, argc, argv, FS_TYPE_ANY);
}
U_BOOT_CMD(
ls, 4, 1, do_ls_wrapper,
"list files in a directory (default /)",
"<interface> [<dev[:part]> [directory]]\n"
" - List files in directory 'directory' of partition 'part' on\n"
" device type 'interface' instance 'dev'."
)
static int do_ln_wrapper(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
return do_ln(cmdtp, flag, argc, argv, FS_TYPE_ANY);
}
U_BOOT_CMD(
ln, 5, 1, do_ln_wrapper,
"Create a symbolic link",
"<interface> <dev[:part]> target linkname\n"
" - create a symbolic link to 'target' with the name 'linkname' on\n"
" device type 'interface' instance 'dev'."
)
static int do_fstype_wrapper(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
return do_fs_type(cmdtp, flag, argc, argv);
}
U_BOOT_CMD(
fstype, 4, 1, do_fstype_wrapper,
"Look up a filesystem type",
"<interface> <dev>:<part>\n"
"- print filesystem type\n"
"fstype <interface> <dev>:<part> <varname>\n"
"- set environment variable to filesystem type\n"
);