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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
*
* made from cmd_ext2, which was:
*
* (C) Copyright 2004
* esd gmbh <www.esd-electronics.com>
* Reinhard Arlt <reinhard.arlt@esd-electronics.com>
*
* made from cmd_reiserfs by
*
* (C) Copyright 2003 - 2004
* Sysgo Real-Time Solutions, AG <www.elinos.com>
* Pavel Bartusek <pba@sysgo.com>
*/
#include <common.h>
#include <config.h>
#include <command.h>
#include <env.h>
#include <part.h>
#include <vsprintf.h>
enum cmd_part_info {
CMD_PART_INFO_START = 0,
CMD_PART_INFO_SIZE,
CMD_PART_INFO_NUMBER
};
static int do_part_uuid(int argc, char * const argv[])
{
int part;
struct blk_desc *dev_desc;
struct disk_partition info;
if (argc < 2)
return CMD_RET_USAGE;
if (argc > 3)
return CMD_RET_USAGE;
part = blk_get_device_part_str(argv[0], argv[1], &dev_desc, &info, 0);
if (part < 0)
return 1;
if (argc > 2)
env_set(argv[2], info.uuid);
else
printf("%s\n", info.uuid);
return 0;
}
static int do_part_list(int argc, char * const argv[])
{
int ret;
struct blk_desc *desc;
char *var = NULL;
bool bootable = false;
int i;
if (argc < 2)
return CMD_RET_USAGE;
if (argc > 2) {
for (i = 2; i < argc ; i++) {
if (argv[i][0] == '-') {
if (!strcmp(argv[i], "-bootable")) {
bootable = true;
} else {
printf("Unknown option %s\n", argv[i]);
return CMD_RET_USAGE;
}
} else {
var = argv[i];
break;
}
}
/* Loops should have been exited at the last argument, which
* as it contained the variable */
if (argc != i + 1)
return CMD_RET_USAGE;
}
ret = blk_get_device_by_str(argv[0], argv[1], &desc);
if (ret < 0)
return 1;
if (var != NULL) {
int p;
char str[512] = { '\0', };
struct disk_partition info;
for (p = 1; p < MAX_SEARCH_PARTITIONS; p++) {
char t[5];
int r = part_get_info(desc, p, &info);
if (r != 0)
continue;
if (bootable && !info.bootable)
continue;
sprintf(t, "%s%x", str[0] ? " " : "", p);
strcat(str, t);
}
env_set(var, str);
return 0;
}
part_print(desc);
return 0;
}
static int do_part_info(int argc, char * const argv[], enum cmd_part_info param)
{
struct blk_desc *desc;
struct disk_partition info;
char buf[512] = { 0 };
char *endp;
int part;
int err;
int ret;
if (argc < 3)
return CMD_RET_USAGE;
if (argc > 4)
return CMD_RET_USAGE;
ret = blk_get_device_by_str(argv[0], argv[1], &desc);
if (ret < 0)
return 1;
part = simple_strtoul(argv[2], &endp, 0);
if (*endp == '\0') {
err = part_get_info(desc, part, &info);
if (err)
return 1;
} else {
part = part_get_info_by_name(desc, argv[2], &info);
if (part == -1)
return 1;
}
switch (param) {
case CMD_PART_INFO_START:
snprintf(buf, sizeof(buf), LBAF, info.start);
break;
case CMD_PART_INFO_SIZE:
snprintf(buf, sizeof(buf), LBAF, info.size);
break;
case CMD_PART_INFO_NUMBER:
snprintf(buf, sizeof(buf), "0x%x", part);
break;
default:
printf("** Unknown cmd_part_info value: %d\n", param);
return 1;
}
if (argc > 3)
env_set(argv[3], buf);
else
printf("%s\n", buf);
return 0;
}
static int do_part_start(int argc, char * const argv[])
{
return do_part_info(argc, argv, CMD_PART_INFO_START);
}
static int do_part_size(int argc, char * const argv[])
{
return do_part_info(argc, argv, CMD_PART_INFO_SIZE);
}
static int do_part_number(int argc, char * const argv[])
{
return do_part_info(argc, argv, CMD_PART_INFO_NUMBER);
}
static int do_part(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
if (argc < 2)
return CMD_RET_USAGE;
if (!strcmp(argv[1], "uuid"))
return do_part_uuid(argc - 2, argv + 2);
else if (!strcmp(argv[1], "list"))
return do_part_list(argc - 2, argv + 2);
else if (!strcmp(argv[1], "start"))
return do_part_start(argc - 2, argv + 2);
else if (!strcmp(argv[1], "size"))
return do_part_size(argc - 2, argv + 2);
else if (!strcmp(argv[1], "number"))
return do_part_number(argc - 2, argv + 2);
return CMD_RET_USAGE;
}
U_BOOT_CMD(
part, CONFIG_SYS_MAXARGS, 1, do_part,
"disk partition related commands",
"uuid <interface> <dev>:<part>\n"
" - print partition UUID\n"
"part uuid <interface> <dev>:<part> <varname>\n"
" - set environment variable to partition UUID\n"
"part list <interface> <dev>\n"
" - print a device's partition table\n"
"part list <interface> <dev> [flags] <varname>\n"
" - set environment variable to the list of partitions\n"
" flags can be -bootable (list only bootable partitions)\n"
"part start <interface> <dev> <part> <varname>\n"
" - set environment variable to the start of the partition (in blocks)\n"
" part can be either partition number or partition name\n"
"part size <interface> <dev> <part> <varname>\n"
" - set environment variable to the size of the partition (in blocks)\n"
" part can be either partition number or partition name\n"
"part number <interface> <dev> <part> <varname>\n"
" - set environment variable to the partition number using the partition name\n"
" part must be specified as partition name"
);
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