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/* Ported to busybox from mtd-utils.
*
* Licensed under GPLv2, see file LICENSE in this source tree.
*/
//config:config UBIATTACH
//config: bool "ubiattach"
//config: default y
//config: select PLATFORM_LINUX
//config: help
//config: Attach MTD device to an UBI device.
//config:
//config:config UBIDETACH
//config: bool "ubidetach"
//config: default y
//config: select PLATFORM_LINUX
//config: help
//config: Detach MTD device from an UBI device.
//config:
//config:config UBIMKVOL
//config: bool "ubimkvol"
//config: default y
//config: select PLATFORM_LINUX
//config: help
//config: Create a UBI volume.
//config:
//config:config UBIRMVOL
//config: bool "ubirmvol"
//config: default y
//config: select PLATFORM_LINUX
//config: help
//config: Delete a UBI volume.
//config:
//config:config UBIRSVOL
//config: bool "ubirsvol"
//config: default y
//config: select PLATFORM_LINUX
//config: help
//config: Resize a UBI volume.
//config:
//config:config UBIUPDATEVOL
//config: bool "ubiupdatevol"
//config: default y
//config: select PLATFORM_LINUX
//config: help
//config: Update a UBI volume.
//applet:IF_UBIATTACH(APPLET_ODDNAME(ubiattach, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubiattach))
//applet:IF_UBIDETACH(APPLET_ODDNAME(ubidetach, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubidetach))
//applet:IF_UBIMKVOL(APPLET_ODDNAME(ubimkvol, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubimkvol))
//applet:IF_UBIRMVOL(APPLET_ODDNAME(ubirmvol, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubirmvol))
//applet:IF_UBIRSVOL(APPLET_ODDNAME(ubirsvol, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubirsvol))
//applet:IF_UBIUPDATEVOL(APPLET_ODDNAME(ubiupdatevol, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubiupdatevol))
//kbuild:lib-$(CONFIG_UBIATTACH) += ubi_tools.o
//kbuild:lib-$(CONFIG_UBIDETACH) += ubi_tools.o
//kbuild:lib-$(CONFIG_UBIMKVOL) += ubi_tools.o
//kbuild:lib-$(CONFIG_UBIRMVOL) += ubi_tools.o
//kbuild:lib-$(CONFIG_UBIRSVOL) += ubi_tools.o
//kbuild:lib-$(CONFIG_UBIUPDATEVOL) += ubi_tools.o
#include "libbb.h"
/* Some versions of kernel have broken headers, need this hack */
#ifndef __packed
# define __packed __attribute__((packed))
#endif
#include <mtd/ubi-user.h>
#define OPTION_M (1 << 0)
#define OPTION_D (1 << 1)
#define OPTION_n (1 << 2)
#define OPTION_N (1 << 3)
#define OPTION_s (1 << 4)
#define OPTION_a (1 << 5)
#define OPTION_t (1 << 6)
#define do_attach (ENABLE_UBIATTACH && applet_name[3] == 'a')
#define do_detach (ENABLE_UBIDETACH && applet_name[3] == 'd')
#define do_mkvol (ENABLE_UBIMKVOL && applet_name[3] == 'm')
#define do_rmvol (ENABLE_UBIRMVOL && applet_name[4] == 'm')
#define do_rsvol (ENABLE_UBIRSVOL && applet_name[4] == 's')
#define do_update (ENABLE_UBIUPDATEVOL && applet_name[3] == 'u')
//usage:#define ubiattach_trivial_usage
//usage: "-m MTD_NUM [-d UBI_NUM] UBI_CTRL_DEV"
//usage:#define ubiattach_full_usage "\n\n"
//usage: "Attach MTD device to UBI\n"
//usage: "\n -m MTD_NUM MTD device number to attach"
//usage: "\n -d UBI_NUM UBI device number to assign"
//usage:
//usage:#define ubidetach_trivial_usage
//usage: "-d UBI_NUM UBI_CTRL_DEV"
//usage:#define ubidetach_full_usage "\n\n"
//usage: "Detach MTD device from UBI\n"
//usage: "\n -d UBI_NUM UBI device number"
//usage:
//usage:#define ubimkvol_trivial_usage
//usage: "UBI_DEVICE -N NAME -s SIZE"
//usage:#define ubimkvol_full_usage "\n\n"
//usage: "Create UBI volume\n"
//usage: "\n -a ALIGNMENT Volume alignment (default 1)"
//usage: "\n -n VOLID Volume ID, if not specified, it"
//usage: "\n will be assigned automatically"
//usage: "\n -N NAME Volume name"
//usage: "\n -s SIZE Size in bytes"
//usage: "\n -t TYPE Volume type (static|dynamic)"
//usage:
//usage:#define ubirmvol_trivial_usage
//usage: "UBI_DEVICE -n VOLID"
//usage:#define ubirmvol_full_usage "\n\n"
//usage: "Remove UBI volume\n"
//usage: "\n -n VOLID Volume ID"
//usage:
//usage:#define ubirsvol_trivial_usage
//usage: "UBI_DEVICE -n VOLID -s SIZE"
//usage:#define ubirsvol_full_usage "\n\n"
//usage: "Resize UBI volume\n"
//usage: "\n -n VOLID Volume ID to resize"
//usage: "\n -s SIZE Size in bytes"
//usage:
//usage:#define ubiupdatevol_trivial_usage
//usage: "UBI_DEVICE [IMG_FILE]"
//usage:#define ubiupdatevol_full_usage "\n\n"
//usage: "Update UBI volume\n"
//usage: "\n -t Truncate UBI volume"
//usage: "\n -s SIZE Bytes in input (if reading stdin)"
int ubi_tools_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int ubi_tools_main(int argc UNUSED_PARAM, char **argv)
{
unsigned opts;
char *ubi_ctrl;
//struct stat st;
int fd;
int mtd_num;
int dev_num = UBI_DEV_NUM_AUTO;
int vol_id = UBI_VOL_NUM_AUTO;
char *vol_name = NULL;
int size_bytes;
int alignment = 1;
char *type = NULL;
opt_complementary = "-1:m+:d+:n+:s+:a+";
opts = getopt32(argv, "m:d:n:N:s:a:t::",
&mtd_num, &dev_num, &vol_id,
&vol_name, &size_bytes, &alignment, &type
);
ubi_ctrl = argv[optind];
fd = xopen(ubi_ctrl, O_RDWR);
//xfstat(fd, &st, ubi_ctrl);
//if (!S_ISCHR(st.st_mode))
// bb_error_msg_and_die("%s: not a char device", ubi_ctrl);
if (do_attach) {
struct ubi_attach_req req;
if (!(opts & OPTION_M))
bb_error_msg_and_die("%s device not specified", "MTD");
memset(&req, 0, sizeof(req));
req.mtd_num = mtd_num;
req.ubi_num = dev_num;
xioctl(fd, UBI_IOCATT, &req);
} else
if (do_detach) {
if (!(opts & OPTION_D))
bb_error_msg_and_die("%s device not specified", "UBI");
xioctl(fd, UBI_IOCDET, &dev_num);
} else
if (do_mkvol) {
struct ubi_mkvol_req req;
int vol_name_len;
if (!(opts & OPTION_s))
bb_error_msg_and_die("%s size not specified", "UBI");
if (!(opts & OPTION_N))
bb_error_msg_and_die("%s name not specified", "UBI");
vol_name_len = strlen(vol_name);
if (vol_name_len > UBI_MAX_VOLUME_NAME)
bb_error_msg_and_die("%s volume name too long", "UBI");
memset(&req, 0, sizeof(req));
req.vol_id = vol_id;
if ((opts & OPTION_t) && type) {
if (type[0] == 's')
req.vol_type = UBI_STATIC_VOLUME;
else
req.vol_type = UBI_DYNAMIC_VOLUME;
} else {
req.vol_type = UBI_DYNAMIC_VOLUME;
}
req.alignment = alignment;
req.bytes = size_bytes;
strncpy(req.name, vol_name, UBI_MAX_VOLUME_NAME);
req.name_len = vol_name_len;
xioctl(fd, UBI_IOCMKVOL, &req);
} else
if (do_rmvol) {
if (!(opts & OPTION_n))
bb_error_msg_and_die("%s volume id not specified", "UBI");
xioctl(fd, UBI_IOCRMVOL, &vol_id);
} else
if (do_rsvol) {
struct ubi_rsvol_req req;
if (!(opts & OPTION_s))
bb_error_msg_and_die("%s size not specified", "UBI");
if (!(opts & OPTION_n))
bb_error_msg_and_die("%s volume id not specified", "UBI");
memset(&req, 0, sizeof(req));
req.bytes = size_bytes;
req.vol_id = vol_id;
xioctl(fd, UBI_IOCRSVOL, &req);
} else
if (do_update) {
long long bytes;
if (opts & OPTION_t) {
// truncate the volume by starting an update for size 0
bytes = 0;
xioctl(fd, UBI_IOCVOLUP, &bytes);
}
else {
struct stat st;
char buf[sizeof("/sys/class/ubi/ubi%d_%d/usable_eb_size") + 2 * sizeof(int)*3];
int input_fd;
unsigned ubinum, volnum;
unsigned leb_size;
ssize_t len;
char *input_data;
// Make assumption that device not is in normal format.
// Removes need for scanning sysfs tree as full libubi does
if (sscanf(ubi_ctrl, "/dev/ubi%u_%u", &ubinum, &volnum) != 2)
bb_error_msg_and_die("%s volume node not in correct format", "UBI");
sprintf(buf, "/sys/class/ubi/ubi%u_%u/usable_eb_size", ubinum, volnum);
if (open_read_close(buf, buf, sizeof(buf)) <= 0)
bb_error_msg_and_die("%s could not get LEB size", "UBI");
if (sscanf(buf, "%u", &leb_size) != 1)
bb_error_msg_and_die("%s could not get LEB size", "UBI");
if (opts & OPTION_s) {
input_fd = 0;
} else {
if (!argv[optind+1])
bb_show_usage();
xstat(argv[optind+1], &st);
size_bytes = st.st_size;
input_fd = xopen(argv[optind+1], O_RDONLY);
}
bytes = size_bytes;
xioctl(fd, UBI_IOCVOLUP, &bytes);
input_data = xmalloc(leb_size);
while ((len = full_read(input_fd, input_data, leb_size)) > 0) {
xwrite(fd, input_data, len);
}
if (len < 0)
bb_error_msg_and_die("%s volume update failed", "UBI");
if (ENABLE_FEATURE_CLEAN_UP)
close(input_fd);
}
}
if (ENABLE_FEATURE_CLEAN_UP)
close(fd);
return EXIT_SUCCESS;
}
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