[3621] | 1 | /* Ported to busybox from mtd-utils.
|
---|
| 2 | *
|
---|
| 3 | * Licensed under GPLv2, see file LICENSE in this source tree.
|
---|
| 4 | */
|
---|
| 5 |
|
---|
| 6 | //config:config UBIATTACH
|
---|
| 7 | //config: bool "ubiattach"
|
---|
| 8 | //config: default y
|
---|
| 9 | //config: select PLATFORM_LINUX
|
---|
| 10 | //config: help
|
---|
| 11 | //config: Attach MTD device to an UBI device.
|
---|
| 12 | //config:
|
---|
| 13 | //config:config UBIDETACH
|
---|
| 14 | //config: bool "ubidetach"
|
---|
| 15 | //config: default y
|
---|
| 16 | //config: select PLATFORM_LINUX
|
---|
| 17 | //config: help
|
---|
| 18 | //config: Detach MTD device from an UBI device.
|
---|
| 19 | //config:
|
---|
| 20 | //config:config UBIMKVOL
|
---|
| 21 | //config: bool "ubimkvol"
|
---|
| 22 | //config: default y
|
---|
| 23 | //config: select PLATFORM_LINUX
|
---|
| 24 | //config: help
|
---|
| 25 | //config: Create a UBI volume.
|
---|
| 26 | //config:
|
---|
| 27 | //config:config UBIRMVOL
|
---|
| 28 | //config: bool "ubirmvol"
|
---|
| 29 | //config: default y
|
---|
| 30 | //config: select PLATFORM_LINUX
|
---|
| 31 | //config: help
|
---|
| 32 | //config: Delete a UBI volume.
|
---|
| 33 | //config:
|
---|
| 34 | //config:config UBIRSVOL
|
---|
| 35 | //config: bool "ubirsvol"
|
---|
| 36 | //config: default y
|
---|
| 37 | //config: select PLATFORM_LINUX
|
---|
| 38 | //config: help
|
---|
| 39 | //config: Resize a UBI volume.
|
---|
| 40 | //config:
|
---|
| 41 | //config:config UBIUPDATEVOL
|
---|
| 42 | //config: bool "ubiupdatevol"
|
---|
| 43 | //config: default y
|
---|
| 44 | //config: select PLATFORM_LINUX
|
---|
| 45 | //config: help
|
---|
| 46 | //config: Update a UBI volume.
|
---|
| 47 |
|
---|
| 48 | //applet:IF_UBIATTACH(APPLET_ODDNAME(ubiattach, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubiattach))
|
---|
| 49 | //applet:IF_UBIDETACH(APPLET_ODDNAME(ubidetach, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubidetach))
|
---|
| 50 | //applet:IF_UBIMKVOL(APPLET_ODDNAME(ubimkvol, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubimkvol))
|
---|
| 51 | //applet:IF_UBIRMVOL(APPLET_ODDNAME(ubirmvol, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubirmvol))
|
---|
| 52 | //applet:IF_UBIRSVOL(APPLET_ODDNAME(ubirsvol, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubirsvol))
|
---|
| 53 | //applet:IF_UBIUPDATEVOL(APPLET_ODDNAME(ubiupdatevol, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubiupdatevol))
|
---|
| 54 |
|
---|
| 55 | //kbuild:lib-$(CONFIG_UBIATTACH) += ubi_tools.o
|
---|
| 56 | //kbuild:lib-$(CONFIG_UBIDETACH) += ubi_tools.o
|
---|
| 57 | //kbuild:lib-$(CONFIG_UBIMKVOL) += ubi_tools.o
|
---|
| 58 | //kbuild:lib-$(CONFIG_UBIRMVOL) += ubi_tools.o
|
---|
| 59 | //kbuild:lib-$(CONFIG_UBIRSVOL) += ubi_tools.o
|
---|
| 60 | //kbuild:lib-$(CONFIG_UBIUPDATEVOL) += ubi_tools.o
|
---|
| 61 |
|
---|
| 62 | #include "libbb.h"
|
---|
| 63 | /* Some versions of kernel have broken headers, need this hack */
|
---|
| 64 | #ifndef __packed
|
---|
| 65 | # define __packed __attribute__((packed))
|
---|
| 66 | #endif
|
---|
| 67 | #include <mtd/ubi-user.h>
|
---|
| 68 |
|
---|
| 69 | #define do_attach (ENABLE_UBIATTACH && applet_name[3] == 'a')
|
---|
| 70 | #define do_detach (ENABLE_UBIDETACH && applet_name[3] == 'd')
|
---|
| 71 | #define do_mkvol (ENABLE_UBIMKVOL && applet_name[3] == 'm')
|
---|
| 72 | #define do_rmvol (ENABLE_UBIRMVOL && applet_name[4] == 'm')
|
---|
| 73 | #define do_rsvol (ENABLE_UBIRSVOL && applet_name[4] == 's')
|
---|
| 74 | #define do_update (ENABLE_UBIUPDATEVOL && applet_name[3] == 'u')
|
---|
| 75 |
|
---|
| 76 | static unsigned get_num_from_file(const char *path, unsigned max, const char *errmsg)
|
---|
| 77 | {
|
---|
| 78 | char buf[sizeof(long long)*3];
|
---|
| 79 | unsigned long long num;
|
---|
| 80 |
|
---|
| 81 | if (open_read_close(path, buf, sizeof(buf)) < 0)
|
---|
| 82 | bb_perror_msg_and_die(errmsg, path);
|
---|
| 83 | /* It can be \n terminated, xatoull won't work well */
|
---|
| 84 | if (sscanf(buf, "%llu", &num) != 1 || num > max)
|
---|
| 85 | bb_error_msg_and_die(errmsg, path);
|
---|
| 86 | return num;
|
---|
| 87 | }
|
---|
| 88 |
|
---|
| 89 | /* To prevent malloc(1G) accidents */
|
---|
| 90 | #define MAX_SANE_ERASEBLOCK (16*1024*1024)
|
---|
| 91 |
|
---|
| 92 | int ubi_tools_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
| 93 | int ubi_tools_main(int argc UNUSED_PARAM, char **argv)
|
---|
| 94 | {
|
---|
| 95 | static const struct suffix_mult size_suffixes[] = {
|
---|
| 96 | { "KiB", 1024 },
|
---|
| 97 | { "MiB", 1024*1024 },
|
---|
| 98 | { "GiB", 1024*1024*1024 },
|
---|
| 99 | { "", 0 }
|
---|
| 100 | };
|
---|
| 101 |
|
---|
| 102 | unsigned opts;
|
---|
| 103 | char *ubi_ctrl;
|
---|
| 104 | int fd;
|
---|
| 105 | int mtd_num;
|
---|
| 106 | int dev_num = UBI_DEV_NUM_AUTO;
|
---|
| 107 | int vol_id = UBI_VOL_NUM_AUTO;
|
---|
| 108 | int vid_hdr_offset = 0;
|
---|
| 109 | char *vol_name;
|
---|
| 110 | unsigned long long size_bytes = size_bytes; /* for compiler */
|
---|
| 111 | char *size_bytes_str;
|
---|
| 112 | int alignment = 1;
|
---|
| 113 | char *type;
|
---|
| 114 | union {
|
---|
| 115 | struct ubi_attach_req attach_req;
|
---|
| 116 | struct ubi_mkvol_req mkvol_req;
|
---|
| 117 | struct ubi_rsvol_req rsvol_req;
|
---|
| 118 | } req_structs;
|
---|
| 119 | #define attach_req req_structs.attach_req
|
---|
| 120 | #define mkvol_req req_structs.mkvol_req
|
---|
| 121 | #define rsvol_req req_structs.rsvol_req
|
---|
| 122 | char path[sizeof("/sys/class/ubi/ubi%d_%d/usable_eb_size")
|
---|
| 123 | + 2 * sizeof(int)*3 + /*just in case:*/ 16];
|
---|
| 124 | #define path_sys_class_ubi_ubi (path + sizeof("/sys/class/ubi/ubi")-1)
|
---|
| 125 |
|
---|
| 126 | strcpy(path, "/sys/class/ubi/ubi");
|
---|
| 127 | memset(&req_structs, 0, sizeof(req_structs));
|
---|
| 128 |
|
---|
| 129 | #define OPTION_m (1 << 0)
|
---|
| 130 | #define OPTION_d (1 << 1)
|
---|
| 131 | #define OPTION_n (1 << 2)
|
---|
| 132 | #define OPTION_N (1 << 3)
|
---|
| 133 | #define OPTION_s (1 << 4)
|
---|
| 134 | #define OPTION_a (1 << 5)
|
---|
| 135 | #define OPTION_t (1 << 6)
|
---|
| 136 | if (do_mkvol) {
|
---|
| 137 | opt_complementary = "-1:d+:n+:a+:O+";
|
---|
| 138 | opts = getopt32(argv, "md:n:N:s:a:t:O:",
|
---|
| 139 | &dev_num, &vol_id,
|
---|
| 140 | &vol_name, &size_bytes_str, &alignment, &type,
|
---|
| 141 | &vid_hdr_offset
|
---|
| 142 | );
|
---|
| 143 | } else
|
---|
| 144 | if (do_update) {
|
---|
| 145 | opt_complementary = "-1";
|
---|
| 146 | opts = getopt32(argv, "s:at", &size_bytes_str);
|
---|
| 147 | opts *= OPTION_s;
|
---|
| 148 | } else {
|
---|
| 149 | opt_complementary = "-1:m+:d+:n+:a+";
|
---|
| 150 | opts = getopt32(argv, "m:d:n:N:s:a:t:",
|
---|
| 151 | &mtd_num, &dev_num, &vol_id,
|
---|
| 152 | &vol_name, &size_bytes_str, &alignment, &type
|
---|
| 153 | );
|
---|
| 154 | }
|
---|
| 155 |
|
---|
| 156 | if (opts & OPTION_s)
|
---|
| 157 | size_bytes = xatoull_sfx(size_bytes_str, size_suffixes);
|
---|
| 158 | argv += optind;
|
---|
| 159 | ubi_ctrl = *argv++;
|
---|
| 160 |
|
---|
| 161 | fd = xopen(ubi_ctrl, O_RDWR);
|
---|
| 162 | //xfstat(fd, &st, ubi_ctrl);
|
---|
| 163 | //if (!S_ISCHR(st.st_mode))
|
---|
| 164 | // bb_error_msg_and_die("%s: not a char device", ubi_ctrl);
|
---|
| 165 |
|
---|
| 166 | //usage:#define ubiattach_trivial_usage
|
---|
| 167 | //usage: "-m MTD_NUM [-d UBI_NUM] [-O VID_HDR_OFF] UBI_CTRL_DEV"
|
---|
| 168 | //usage:#define ubiattach_full_usage "\n\n"
|
---|
| 169 | //usage: "Attach MTD device to UBI\n"
|
---|
| 170 | //usage: "\n -m MTD_NUM MTD device number to attach"
|
---|
| 171 | //usage: "\n -d UBI_NUM UBI device number to assign"
|
---|
| 172 | //usage: "\n -O VID_HDR_OFF VID header offset"
|
---|
| 173 | if (do_attach) {
|
---|
| 174 | if (!(opts & OPTION_m))
|
---|
| 175 | bb_error_msg_and_die("%s device not specified", "MTD");
|
---|
| 176 |
|
---|
| 177 | attach_req.mtd_num = mtd_num;
|
---|
| 178 | attach_req.ubi_num = dev_num;
|
---|
| 179 | attach_req.vid_hdr_offset = vid_hdr_offset;
|
---|
| 180 |
|
---|
| 181 | xioctl(fd, UBI_IOCATT, &attach_req);
|
---|
| 182 | } else
|
---|
| 183 |
|
---|
| 184 | //usage:#define ubidetach_trivial_usage
|
---|
| 185 | //usage: "-d UBI_NUM UBI_CTRL_DEV"
|
---|
| 186 | //usage:#define ubidetach_full_usage "\n\n"
|
---|
| 187 | //usage: "Detach MTD device from UBI\n"
|
---|
| 188 | //usage: "\n -d UBI_NUM UBI device number"
|
---|
| 189 | if (do_detach) {
|
---|
| 190 | if (!(opts & OPTION_d))
|
---|
| 191 | bb_error_msg_and_die("%s device not specified", "UBI");
|
---|
| 192 |
|
---|
| 193 | /* FIXME? kernel expects int32_t* here: */
|
---|
| 194 | xioctl(fd, UBI_IOCDET, &dev_num);
|
---|
| 195 | } else
|
---|
| 196 |
|
---|
| 197 | //usage:#define ubimkvol_trivial_usage
|
---|
| 198 | //usage: "-N NAME [-s SIZE | -m] UBI_DEVICE"
|
---|
| 199 | //usage:#define ubimkvol_full_usage "\n\n"
|
---|
| 200 | //usage: "Create UBI volume\n"
|
---|
| 201 | //usage: "\n -a ALIGNMENT Volume alignment (default 1)"
|
---|
| 202 | //usage: "\n -m Set volume size to maximum available"
|
---|
| 203 | //usage: "\n -n VOLID Volume ID. If not specified,"
|
---|
| 204 | //usage: "\n assigned automatically"
|
---|
| 205 | //usage: "\n -N NAME Volume name"
|
---|
| 206 | //usage: "\n -s SIZE Size in bytes"
|
---|
| 207 | //usage: "\n -t TYPE Volume type (static|dynamic)"
|
---|
| 208 | if (do_mkvol) {
|
---|
| 209 | if (opts & OPTION_m) {
|
---|
| 210 | unsigned leb_avail;
|
---|
| 211 | unsigned leb_size;
|
---|
| 212 | unsigned num;
|
---|
| 213 | char *p;
|
---|
| 214 |
|
---|
| 215 | num = ubi_devnum_from_devname(ubi_ctrl);
|
---|
| 216 | p = path_sys_class_ubi_ubi + sprintf(path_sys_class_ubi_ubi, "%u/", num);
|
---|
| 217 |
|
---|
| 218 | strcpy(p, "avail_eraseblocks");
|
---|
| 219 | leb_avail = get_num_from_file(path, UINT_MAX, "Can't get available eraseblocks from '%s'");
|
---|
| 220 |
|
---|
| 221 | strcpy(p, "eraseblock_size");
|
---|
| 222 | leb_size = get_num_from_file(path, MAX_SANE_ERASEBLOCK, "Can't get eraseblock size from '%s'");
|
---|
| 223 |
|
---|
| 224 | size_bytes = leb_avail * (unsigned long long)leb_size;
|
---|
| 225 | //if (size_bytes <= 0)
|
---|
| 226 | // bb_error_msg_and_die("%s invalid maximum size calculated", "UBI");
|
---|
| 227 | } else
|
---|
| 228 | if (!(opts & OPTION_s))
|
---|
| 229 | bb_error_msg_and_die("size not specified");
|
---|
| 230 |
|
---|
| 231 | if (!(opts & OPTION_N))
|
---|
| 232 | bb_error_msg_and_die("name not specified");
|
---|
| 233 |
|
---|
| 234 | mkvol_req.vol_id = vol_id;
|
---|
| 235 | mkvol_req.vol_type = UBI_DYNAMIC_VOLUME;
|
---|
| 236 | if ((opts & OPTION_t) && type[0] == 's')
|
---|
| 237 | mkvol_req.vol_type = UBI_STATIC_VOLUME;
|
---|
| 238 | mkvol_req.alignment = alignment;
|
---|
| 239 | mkvol_req.bytes = size_bytes; /* signed int64_t */
|
---|
| 240 | strncpy(mkvol_req.name, vol_name, UBI_MAX_VOLUME_NAME);
|
---|
| 241 | mkvol_req.name_len = strlen(vol_name);
|
---|
| 242 | if (mkvol_req.name_len > UBI_MAX_VOLUME_NAME)
|
---|
| 243 | bb_error_msg_and_die("volume name too long: '%s'", vol_name);
|
---|
| 244 |
|
---|
| 245 | xioctl(fd, UBI_IOCMKVOL, &mkvol_req);
|
---|
| 246 | } else
|
---|
| 247 |
|
---|
| 248 | //usage:#define ubirmvol_trivial_usage
|
---|
| 249 | //usage: "-n VOLID / -N VOLNAME UBI_DEVICE"
|
---|
| 250 | //usage:#define ubirmvol_full_usage "\n\n"
|
---|
| 251 | //usage: "Remove UBI volume\n"
|
---|
| 252 | //usage: "\n -n VOLID Volume ID"
|
---|
| 253 | //usage: "\n -N VOLNAME Volume name"
|
---|
| 254 | if (do_rmvol) {
|
---|
| 255 | if (!(opts & (OPTION_n|OPTION_N)))
|
---|
| 256 | bb_error_msg_and_die("volume id not specified");
|
---|
| 257 |
|
---|
| 258 | if (opts & OPTION_N) {
|
---|
| 259 | unsigned num = ubi_devnum_from_devname(ubi_ctrl);
|
---|
| 260 | vol_id = ubi_get_volid_by_name(num, vol_name);
|
---|
| 261 | }
|
---|
| 262 |
|
---|
| 263 | if (sizeof(vol_id) != 4) {
|
---|
| 264 | /* kernel expects int32_t* in this ioctl */
|
---|
| 265 | int32_t t = vol_id;
|
---|
| 266 | xioctl(fd, UBI_IOCRMVOL, &t);
|
---|
| 267 | } else {
|
---|
| 268 | xioctl(fd, UBI_IOCRMVOL, &vol_id);
|
---|
| 269 | }
|
---|
| 270 | } else
|
---|
| 271 |
|
---|
| 272 | //usage:#define ubirsvol_trivial_usage
|
---|
| 273 | //usage: "-n VOLID -s SIZE UBI_DEVICE"
|
---|
| 274 | //usage:#define ubirsvol_full_usage "\n\n"
|
---|
| 275 | //usage: "Resize UBI volume\n"
|
---|
| 276 | //usage: "\n -n VOLID Volume ID"
|
---|
| 277 | //usage: "\n -s SIZE Size in bytes"
|
---|
| 278 | if (do_rsvol) {
|
---|
| 279 | if (!(opts & OPTION_s))
|
---|
| 280 | bb_error_msg_and_die("size not specified");
|
---|
| 281 | if (!(opts & OPTION_n))
|
---|
| 282 | bb_error_msg_and_die("volume id not specified");
|
---|
| 283 |
|
---|
| 284 | rsvol_req.bytes = size_bytes; /* signed int64_t */
|
---|
| 285 | rsvol_req.vol_id = vol_id;
|
---|
| 286 |
|
---|
| 287 | xioctl(fd, UBI_IOCRSVOL, &rsvol_req);
|
---|
| 288 | } else
|
---|
| 289 |
|
---|
| 290 | //usage:#define ubiupdatevol_trivial_usage
|
---|
| 291 | //usage: "[-t | [-s SIZE] IMG_FILE] UBI_DEVICE"
|
---|
| 292 | //usage:#define ubiupdatevol_full_usage "\n\n"
|
---|
| 293 | //usage: "Update UBI volume\n"
|
---|
| 294 | //usage: "\n -t Truncate to zero size"
|
---|
| 295 | //usage: "\n -s SIZE Size in bytes to resize to"
|
---|
| 296 | if (do_update) {
|
---|
| 297 | int64_t bytes64;
|
---|
| 298 |
|
---|
| 299 | if (opts & OPTION_t) {
|
---|
| 300 | /* truncate the volume by starting an update for size 0 */
|
---|
| 301 | bytes64 = 0;
|
---|
| 302 | /* this ioctl expects int64_t* parameter */
|
---|
| 303 | xioctl(fd, UBI_IOCVOLUP, &bytes64);
|
---|
| 304 | }
|
---|
| 305 | else {
|
---|
| 306 | struct stat st;
|
---|
| 307 | unsigned ubinum, volnum;
|
---|
| 308 | unsigned leb_size;
|
---|
| 309 | ssize_t len;
|
---|
| 310 | char *input_data;
|
---|
| 311 |
|
---|
| 312 | /* Assume that device is in normal format. */
|
---|
| 313 | /* Removes need for scanning sysfs tree as full libubi does. */
|
---|
| 314 | if (sscanf(ubi_ctrl, "/dev/ubi%u_%u", &ubinum, &volnum) != 2)
|
---|
| 315 | bb_error_msg_and_die("wrong format of UBI device name");
|
---|
| 316 |
|
---|
| 317 | sprintf(path_sys_class_ubi_ubi, "%u_%u/usable_eb_size", ubinum, volnum);
|
---|
| 318 | leb_size = get_num_from_file(path, MAX_SANE_ERASEBLOCK, "Can't get usable eraseblock size from '%s'");
|
---|
| 319 |
|
---|
| 320 | if (!(opts & OPTION_s)) {
|
---|
| 321 | if (!*argv)
|
---|
| 322 | bb_show_usage();
|
---|
| 323 | xmove_fd(xopen(*argv, O_RDONLY), STDIN_FILENO);
|
---|
| 324 | xfstat(STDIN_FILENO, &st, *argv);
|
---|
| 325 | size_bytes = st.st_size;
|
---|
| 326 | }
|
---|
| 327 |
|
---|
| 328 | bytes64 = size_bytes;
|
---|
| 329 | /* this ioctl expects signed int64_t* parameter */
|
---|
| 330 | xioctl(fd, UBI_IOCVOLUP, &bytes64);
|
---|
| 331 |
|
---|
| 332 | input_data = xmalloc(leb_size);
|
---|
| 333 | while ((len = full_read(STDIN_FILENO, input_data, leb_size)) > 0) {
|
---|
| 334 | xwrite(fd, input_data, len);
|
---|
| 335 | }
|
---|
| 336 | if (len < 0)
|
---|
| 337 | bb_perror_msg_and_die("UBI volume update failed");
|
---|
| 338 | }
|
---|
| 339 | }
|
---|
| 340 |
|
---|
| 341 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 342 | close(fd);
|
---|
| 343 |
|
---|
| 344 | return EXIT_SUCCESS;
|
---|
| 345 | }
|
---|