mirror of
https://github.com/sheumann/hush.git
synced 2024-10-29 20:27:40 +00:00
277 lines
8.3 KiB
C
277 lines
8.3 KiB
C
/* 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;
|
|
}
|