tune2fs.c revision 5027751530980c61e313d265b1367fee90589cf4
1/* 2 * tune2fs.c - Change the file system parameters on an ext2 file system 3 * 4 * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr> 5 * Laboratoire MASI, Institut Blaise Pascal 6 * Universite Pierre et Marie Curie (Paris VI) 7 * 8 * Copyright 1995, 1996, 1997, 1998, 1999, 2000 by Theodore Ts'o. 9 * 10 * %Begin-Header% 11 * This file may be redistributed under the terms of the GNU Public 12 * License. 13 * %End-Header% 14 */ 15 16/* 17 * History: 18 * 93/06/01 - Creation 19 * 93/10/31 - Added the -c option to change the maximal mount counts 20 * 93/12/14 - Added -l flag to list contents of superblock 21 * M.J.E. Mol (marcel@duteca.et.tudelft.nl) 22 * F.W. ten Wolde (franky@duteca.et.tudelft.nl) 23 * 93/12/29 - Added the -e option to change errors behavior 24 * 94/02/27 - Ported to use the ext2fs library 25 * 94/03/06 - Added the checks interval from Uwe Ohse (uwe@tirka.gun.de) 26 */ 27 28#define _XOPEN_SOURCE 600 /* for inclusion of strptime() */ 29#define _BSD_SOURCE /* for inclusion of strcasecmp() */ 30#include "config.h" 31#include <fcntl.h> 32#include <grp.h> 33#ifdef HAVE_GETOPT_H 34#include <getopt.h> 35#else 36extern char *optarg; 37extern int optind; 38#endif 39#include <pwd.h> 40#include <stdio.h> 41#ifdef HAVE_STDLIB_H 42#include <stdlib.h> 43#endif 44#include <string.h> 45#include <time.h> 46#include <unistd.h> 47#include <sys/types.h> 48#include <libgen.h> 49#include <limits.h> 50 51#include "ext2fs/ext2_fs.h" 52#include "ext2fs/ext2fs.h" 53#include "et/com_err.h" 54#include "uuid/uuid.h" 55#include "e2p/e2p.h" 56#include "jfs_user.h" 57#include "util.h" 58#include "blkid/blkid.h" 59#include "quota/mkquota.h" 60 61#include "../version.h" 62#include "nls-enable.h" 63 64#define QOPT_ENABLE (1) 65#define QOPT_DISABLE (-1) 66 67extern int ask_yn(const char *string, int def); 68 69const char *program_name = "tune2fs"; 70char *device_name; 71char *new_label, *new_last_mounted, *new_UUID; 72char *io_options; 73static int c_flag, C_flag, e_flag, f_flag, g_flag, i_flag, l_flag, L_flag; 74static int m_flag, M_flag, Q_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag; 75static int I_flag; 76static int clear_mmp; 77static time_t last_check_time; 78static int print_label; 79static int max_mount_count, mount_count, mount_flags; 80static unsigned long interval; 81static blk64_t reserved_blocks; 82static double reserved_ratio; 83static unsigned long resgid, resuid; 84static unsigned short errors; 85static int open_flag; 86static char *features_cmd; 87static char *mntopts_cmd; 88static int stride, stripe_width; 89static int stride_set, stripe_width_set; 90static char *extended_cmd; 91static unsigned long new_inode_size; 92static char *ext_mount_opts; 93static int usrquota, grpquota; 94 95int journal_size, journal_flags; 96char *journal_device; 97 98static struct list_head blk_move_list; 99 100struct blk_move { 101 struct list_head list; 102 blk64_t old_loc; 103 blk64_t new_loc; 104}; 105 106 107static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n"); 108 109#ifdef CONFIG_BUILD_FINDFS 110void do_findfs(int argc, char **argv); 111#endif 112 113static void usage(void) 114{ 115 fprintf(stderr, 116 _("Usage: %s [-c max_mounts_count] [-e errors_behavior] " 117 "[-g group]\n" 118 "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n" 119 "\t[-m reserved_blocks_percent] " 120 "[-o [^]mount_options[,...]] [-p mmp_update_interval]\n" 121 "\t[-r reserved_blocks_count] [-u user] [-C mount_count] " 122 "[-L volume_label]\n" 123 "\t[-M last_mounted_dir] [-O [^]feature[,...]]\n" 124 "\t[-E extended-option[,...]] [-T last_check_time] " 125 "[-U UUID]\n\t[ -I new_inode_size ] device\n"), program_name); 126 exit(1); 127} 128 129static __u32 ok_features[3] = { 130 /* Compat */ 131 EXT3_FEATURE_COMPAT_HAS_JOURNAL | 132 EXT2_FEATURE_COMPAT_DIR_INDEX, 133 /* Incompat */ 134 EXT2_FEATURE_INCOMPAT_FILETYPE | 135 EXT3_FEATURE_INCOMPAT_EXTENTS | 136 EXT4_FEATURE_INCOMPAT_FLEX_BG | 137 EXT4_FEATURE_INCOMPAT_MMP, 138 /* R/O compat */ 139 EXT2_FEATURE_RO_COMPAT_LARGE_FILE | 140 EXT4_FEATURE_RO_COMPAT_HUGE_FILE| 141 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 142 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE| 143 EXT4_FEATURE_RO_COMPAT_GDT_CSUM | 144 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER | 145 EXT4_FEATURE_RO_COMPAT_QUOTA 146}; 147 148static __u32 clear_ok_features[3] = { 149 /* Compat */ 150 EXT3_FEATURE_COMPAT_HAS_JOURNAL | 151 EXT2_FEATURE_COMPAT_RESIZE_INODE | 152 EXT2_FEATURE_COMPAT_DIR_INDEX, 153 /* Incompat */ 154 EXT2_FEATURE_INCOMPAT_FILETYPE | 155 EXT4_FEATURE_INCOMPAT_FLEX_BG | 156 EXT4_FEATURE_INCOMPAT_MMP, 157 /* R/O compat */ 158 EXT2_FEATURE_RO_COMPAT_LARGE_FILE | 159 EXT4_FEATURE_RO_COMPAT_HUGE_FILE| 160 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 161 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE| 162 EXT4_FEATURE_RO_COMPAT_GDT_CSUM | 163 EXT4_FEATURE_RO_COMPAT_QUOTA 164}; 165 166/* 167 * Remove an external journal from the filesystem 168 */ 169static int remove_journal_device(ext2_filsys fs) 170{ 171 char *journal_path; 172 ext2_filsys jfs; 173 char buf[1024]; 174 journal_superblock_t *jsb; 175 int i, nr_users; 176 errcode_t retval; 177 int commit_remove_journal = 0; 178 io_manager io_ptr; 179 180 if (f_flag) 181 commit_remove_journal = 1; /* force removal even if error */ 182 183 uuid_unparse(fs->super->s_journal_uuid, buf); 184 journal_path = blkid_get_devname(NULL, "UUID", buf); 185 186 if (!journal_path) { 187 journal_path = 188 ext2fs_find_block_device(fs->super->s_journal_dev); 189 if (!journal_path) 190 goto no_valid_journal; 191 } 192 193#ifdef CONFIG_TESTIO_DEBUG 194 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 195 io_ptr = test_io_manager; 196 test_io_backing_manager = unix_io_manager; 197 } else 198#endif 199 io_ptr = unix_io_manager; 200 retval = ext2fs_open(journal_path, EXT2_FLAG_RW| 201 EXT2_FLAG_JOURNAL_DEV_OK, 0, 202 fs->blocksize, io_ptr, &jfs); 203 if (retval) { 204 com_err(program_name, retval, 205 _("while trying to open external journal")); 206 goto no_valid_journal; 207 } 208 if (!(jfs->super->s_feature_incompat & 209 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) { 210 fprintf(stderr, _("%s is not a journal device.\n"), 211 journal_path); 212 goto no_valid_journal; 213 } 214 215 /* Get the journal superblock */ 216 if ((retval = io_channel_read_blk64(jfs->io, 1, -1024, buf))) { 217 com_err(program_name, retval, 218 _("while reading journal superblock")); 219 goto no_valid_journal; 220 } 221 222 jsb = (journal_superblock_t *) buf; 223 if ((jsb->s_header.h_magic != (unsigned)ntohl(JFS_MAGIC_NUMBER)) || 224 (jsb->s_header.h_blocktype != (unsigned)ntohl(JFS_SUPERBLOCK_V2))) { 225 fputs(_("Journal superblock not found!\n"), stderr); 226 goto no_valid_journal; 227 } 228 229 /* Find the filesystem UUID */ 230 nr_users = ntohl(jsb->s_nr_users); 231 for (i = 0; i < nr_users; i++) { 232 if (memcmp(fs->super->s_uuid, &jsb->s_users[i * 16], 16) == 0) 233 break; 234 } 235 if (i >= nr_users) { 236 fputs(_("Filesystem's UUID not found on journal device.\n"), 237 stderr); 238 commit_remove_journal = 1; 239 goto no_valid_journal; 240 } 241 nr_users--; 242 for (i = 0; i < nr_users; i++) 243 memcpy(&jsb->s_users[i * 16], &jsb->s_users[(i + 1) * 16], 16); 244 jsb->s_nr_users = htonl(nr_users); 245 246 /* Write back the journal superblock */ 247 if ((retval = io_channel_write_blk64(jfs->io, 1, -1024, buf))) { 248 com_err(program_name, retval, 249 "while writing journal superblock."); 250 goto no_valid_journal; 251 } 252 253 commit_remove_journal = 1; 254 255no_valid_journal: 256 if (commit_remove_journal == 0) { 257 fputs(_("Cannot locate journal device. It was NOT removed\n" 258 "Use -f option to remove missing journal device.\n"), 259 stderr); 260 return 1; 261 } 262 fs->super->s_journal_dev = 0; 263 uuid_clear(fs->super->s_journal_uuid); 264 ext2fs_mark_super_dirty(fs); 265 fputs(_("Journal removed\n"), stdout); 266 free(journal_path); 267 268 return 0; 269} 270 271/* Helper function for remove_journal_inode */ 272static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr, 273 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 274 blk64_t ref_block EXT2FS_ATTR((unused)), 275 int ref_offset EXT2FS_ATTR((unused)), 276 void *private EXT2FS_ATTR((unused))) 277{ 278 blk64_t block; 279 int group; 280 281 block = *blocknr; 282 ext2fs_unmark_block_bitmap2(fs->block_map, block); 283 group = ext2fs_group_of_blk2(fs, block); 284 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1); 285 ext2fs_group_desc_csum_set(fs, group); 286 ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs)); 287 return 0; 288} 289 290/* 291 * Remove the journal inode from the filesystem 292 */ 293static errcode_t remove_journal_inode(ext2_filsys fs) 294{ 295 struct ext2_inode inode; 296 errcode_t retval; 297 ino_t ino = fs->super->s_journal_inum; 298 299 retval = ext2fs_read_inode(fs, ino, &inode); 300 if (retval) { 301 com_err(program_name, retval, 302 _("while reading journal inode")); 303 return retval; 304 } 305 if (ino == EXT2_JOURNAL_INO) { 306 retval = ext2fs_read_bitmaps(fs); 307 if (retval) { 308 com_err(program_name, retval, 309 _("while reading bitmaps")); 310 return retval; 311 } 312 retval = ext2fs_block_iterate3(fs, ino, 313 BLOCK_FLAG_READ_ONLY, NULL, 314 release_blocks_proc, NULL); 315 if (retval) { 316 com_err(program_name, retval, 317 _("while clearing journal inode")); 318 return retval; 319 } 320 memset(&inode, 0, sizeof(inode)); 321 ext2fs_mark_bb_dirty(fs); 322 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 323 } else 324 inode.i_flags &= ~EXT2_IMMUTABLE_FL; 325 retval = ext2fs_write_inode(fs, ino, &inode); 326 if (retval) { 327 com_err(program_name, retval, 328 _("while writing journal inode")); 329 return retval; 330 } 331 fs->super->s_journal_inum = 0; 332 ext2fs_mark_super_dirty(fs); 333 334 return 0; 335} 336 337/* 338 * Update the default mount options 339 */ 340static int update_mntopts(ext2_filsys fs, char *mntopts) 341{ 342 struct ext2_super_block *sb = fs->super; 343 344 if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) { 345 fprintf(stderr, _("Invalid mount option set: %s\n"), 346 mntopts); 347 return 1; 348 } 349 ext2fs_mark_super_dirty(fs); 350 351 return 0; 352} 353 354static void request_fsck_afterwards(ext2_filsys fs) 355{ 356 static int requested = 0; 357 358 if (requested++) 359 return; 360 fs->super->s_state &= ~EXT2_VALID_FS; 361 printf("\n%s\n", _(please_fsck)); 362 if (mount_flags & EXT2_MF_READONLY) 363 printf(_("(and reboot afterwards!)\n")); 364} 365 366/* 367 * Update the feature set as provided by the user. 368 */ 369static int update_feature_set(ext2_filsys fs, char *features) 370{ 371 struct ext2_super_block *sb = fs->super; 372 struct ext2_group_desc *gd; 373 __u32 old_features[3]; 374 int i, type_err; 375 unsigned int mask_err; 376 377#define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \ 378 ((&sb->s_feature_compat)[(type)] & (mask))) 379#define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \ 380 !((&sb->s_feature_compat)[(type)] & (mask))) 381#define FEATURE_CHANGED(type, mask) ((mask) & \ 382 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)])) 383 384 old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat; 385 old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat; 386 old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat; 387 388 if (e2p_edit_feature2(features, &sb->s_feature_compat, 389 ok_features, clear_ok_features, 390 &type_err, &mask_err)) { 391 if (!mask_err) 392 fprintf(stderr, 393 _("Invalid filesystem option set: %s\n"), 394 features); 395 else if (type_err & E2P_FEATURE_NEGATE_FLAG) 396 fprintf(stderr, _("Clearing filesystem feature '%s' " 397 "not supported.\n"), 398 e2p_feature2string(type_err & 399 E2P_FEATURE_TYPE_MASK, 400 mask_err)); 401 else 402 fprintf(stderr, _("Setting filesystem feature '%s' " 403 "not supported.\n"), 404 e2p_feature2string(type_err, mask_err)); 405 return 1; 406 } 407 408 if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 409 if ((mount_flags & EXT2_MF_MOUNTED) && 410 !(mount_flags & EXT2_MF_READONLY)) { 411 fputs(_("The has_journal feature may only be " 412 "cleared when the filesystem is\n" 413 "unmounted or mounted " 414 "read-only.\n"), stderr); 415 return 1; 416 } 417 if (sb->s_feature_incompat & 418 EXT3_FEATURE_INCOMPAT_RECOVER) { 419 fputs(_("The needs_recovery flag is set. " 420 "Please run e2fsck before clearing\n" 421 "the has_journal flag.\n"), stderr); 422 return 1; 423 } 424 if (sb->s_journal_inum) { 425 if (remove_journal_inode(fs)) 426 return 1; 427 } 428 if (sb->s_journal_dev) { 429 if (remove_journal_device(fs)) 430 return 1; 431 } 432 } 433 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) { 434 int error; 435 436 if ((mount_flags & EXT2_MF_MOUNTED) || 437 (mount_flags & EXT2_MF_READONLY)) { 438 fputs(_("The multiple mount protection feature can't\n" 439 "be set if the filesystem is mounted or\n" 440 "read-only.\n"), stderr); 441 return 1; 442 } 443 444 error = ext2fs_mmp_init(fs); 445 if (error) { 446 fputs(_("\nError while enabling multiple mount " 447 "protection feature."), stderr); 448 return 1; 449 } 450 451 /* 452 * We want to update group desc with the new free blocks count 453 */ 454 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 455 456 printf(_("Multiple mount protection has been enabled " 457 "with update interval %ds.\n"), 458 sb->s_mmp_update_interval); 459 } 460 461 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) { 462 int error; 463 464 if (mount_flags & EXT2_MF_READONLY) { 465 fputs(_("The multiple mount protection feature cannot\n" 466 "be disabled if the filesystem is readonly.\n"), 467 stderr); 468 return 1; 469 } 470 471 error = ext2fs_read_bitmaps(fs); 472 if (error) { 473 fputs(_("Error while reading bitmaps\n"), stderr); 474 return 1; 475 } 476 477 error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL); 478 if (error) { 479 struct mmp_struct *mmp_cmp = fs->mmp_cmp; 480 481 if (error == EXT2_ET_MMP_MAGIC_INVALID) 482 printf(_("Magic number in MMP block does not " 483 "match. expected: %x, actual: %x\n"), 484 EXT4_MMP_MAGIC, mmp_cmp->mmp_magic); 485 else 486 com_err(program_name, error, 487 _("while reading MMP block.")); 488 goto mmp_error; 489 } 490 491 /* We need to force out the group descriptors as well */ 492 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 493 ext2fs_block_alloc_stats(fs, sb->s_mmp_block, -1); 494mmp_error: 495 sb->s_mmp_block = 0; 496 sb->s_mmp_update_interval = 0; 497 } 498 499 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 500 /* 501 * If adding a journal flag, let the create journal 502 * code below handle setting the flag and creating the 503 * journal. We supply a default size if necessary. 504 */ 505 if (!journal_size) 506 journal_size = -1; 507 sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; 508 } 509 510 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) { 511 if (!sb->s_def_hash_version) 512 sb->s_def_hash_version = EXT2_HASH_HALF_MD4; 513 if (uuid_is_null((unsigned char *) sb->s_hash_seed)) 514 uuid_generate((unsigned char *) sb->s_hash_seed); 515 } 516 517 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) { 518 if (ext2fs_check_desc(fs)) { 519 fputs(_("Clearing the flex_bg flag would " 520 "cause the the filesystem to be\n" 521 "inconsistent.\n"), stderr); 522 return 1; 523 } 524 } 525 526 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 527 EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) { 528 if ((mount_flags & EXT2_MF_MOUNTED) && 529 !(mount_flags & EXT2_MF_READONLY)) { 530 fputs(_("The huge_file feature may only be " 531 "cleared when the filesystem is\n" 532 "unmounted or mounted " 533 "read-only.\n"), stderr); 534 return 1; 535 } 536 } 537 538 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, 539 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) { 540 for (i = 0; i < fs->group_desc_count; i++) { 541 gd = ext2fs_group_desc(fs, fs->group_desc, i); 542 gd->bg_itable_unused = 0; 543 gd->bg_flags = EXT2_BG_INODE_ZEROED; 544 ext2fs_group_desc_csum_set(fs, i); 545 } 546 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 547 } 548 549 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 550 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) { 551 for (i = 0; i < fs->group_desc_count; i++) { 552 gd = ext2fs_group_desc(fs, fs->group_desc, i); 553 if ((gd->bg_flags & EXT2_BG_INODE_ZEROED) == 0) { 554 /* 555 * XXX what we really should do is zap 556 * uninitialized inode tables instead. 557 */ 558 request_fsck_afterwards(fs); 559 break; 560 } 561 gd->bg_itable_unused = 0; 562 gd->bg_flags = 0; 563 gd->bg_checksum = 0; 564 } 565 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 566 } 567 568 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, 569 EXT4_FEATURE_RO_COMPAT_QUOTA)) { 570 /* 571 * Set the Q_flag here and handle the quota options in the code 572 * below. 573 */ 574 if (!Q_flag) { 575 Q_flag = 1; 576 /* Enable both user quota and group quota by default */ 577 usrquota = QOPT_ENABLE; 578 grpquota = QOPT_ENABLE; 579 } 580 sb->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA; 581 } 582 583 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 584 EXT4_FEATURE_RO_COMPAT_QUOTA)) { 585 /* 586 * Set the Q_flag here and handle the quota options in the code 587 * below. 588 */ 589 if (Q_flag) 590 fputs(_("\nWarning: '^quota' option overrides '-Q'" 591 "arguments.\n"), stderr); 592 Q_flag = 1; 593 /* Disable both user quota and group quota by default */ 594 usrquota = QOPT_DISABLE; 595 grpquota = QOPT_DISABLE; 596 } 597 598 if (sb->s_rev_level == EXT2_GOOD_OLD_REV && 599 (sb->s_feature_compat || sb->s_feature_ro_compat || 600 sb->s_feature_incompat)) 601 ext2fs_update_dynamic_rev(fs); 602 603 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT, 604 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) || 605 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 606 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) || 607 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT, 608 EXT2_FEATURE_INCOMPAT_FILETYPE) || 609 FEATURE_CHANGED(E2P_FEATURE_COMPAT, 610 EXT2_FEATURE_COMPAT_RESIZE_INODE) || 611 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 612 EXT2_FEATURE_RO_COMPAT_LARGE_FILE)) 613 request_fsck_afterwards(fs); 614 615 if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) || 616 (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) || 617 (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat)) 618 ext2fs_mark_super_dirty(fs); 619 620 return 0; 621} 622 623/* 624 * Add a journal to the filesystem. 625 */ 626static int add_journal(ext2_filsys fs) 627{ 628 unsigned long journal_blocks; 629 errcode_t retval; 630 ext2_filsys jfs; 631 io_manager io_ptr; 632 633 if (fs->super->s_feature_compat & 634 EXT3_FEATURE_COMPAT_HAS_JOURNAL) { 635 fputs(_("The filesystem already has a journal.\n"), stderr); 636 goto err; 637 } 638 if (journal_device) { 639 check_plausibility(journal_device); 640 check_mount(journal_device, 0, _("journal")); 641#ifdef CONFIG_TESTIO_DEBUG 642 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 643 io_ptr = test_io_manager; 644 test_io_backing_manager = unix_io_manager; 645 } else 646#endif 647 io_ptr = unix_io_manager; 648 retval = ext2fs_open(journal_device, EXT2_FLAG_RW| 649 EXT2_FLAG_JOURNAL_DEV_OK, 0, 650 fs->blocksize, io_ptr, &jfs); 651 if (retval) { 652 com_err(program_name, retval, 653 _("\n\twhile trying to open journal on %s\n"), 654 journal_device); 655 goto err; 656 } 657 printf(_("Creating journal on device %s: "), 658 journal_device); 659 fflush(stdout); 660 661 retval = ext2fs_add_journal_device(fs, jfs); 662 ext2fs_close(jfs); 663 if (retval) { 664 com_err(program_name, retval, 665 _("while adding filesystem to journal on %s"), 666 journal_device); 667 goto err; 668 } 669 fputs(_("done\n"), stdout); 670 } else if (journal_size) { 671 fputs(_("Creating journal inode: "), stdout); 672 fflush(stdout); 673 journal_blocks = figure_journal_size(journal_size, fs); 674 675 retval = ext2fs_add_journal_inode(fs, journal_blocks, 676 journal_flags); 677 if (retval) { 678 fprintf(stderr, "\n"); 679 com_err(program_name, retval, 680 _("\n\twhile trying to create journal file")); 681 return retval; 682 } else 683 fputs(_("done\n"), stdout); 684 /* 685 * If the filesystem wasn't mounted, we need to force 686 * the block group descriptors out. 687 */ 688 if ((mount_flags & EXT2_MF_MOUNTED) == 0) 689 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 690 } 691 print_check_message(fs->super->s_max_mnt_count, 692 fs->super->s_checkinterval); 693 return 0; 694 695err: 696 free(journal_device); 697 return 1; 698} 699 700void handle_quota_options(ext2_filsys fs) 701{ 702 quota_ctx_t qctx; 703 ext2_ino_t qf_ino; 704 705 if (!usrquota && !grpquota) 706 /* Nothing to do. */ 707 return; 708 709 quota_init_context(&qctx, fs, -1); 710 711 if (usrquota == QOPT_ENABLE || grpquota == QOPT_ENABLE) 712 quota_compute_usage(qctx); 713 714 if (usrquota == QOPT_ENABLE && !fs->super->s_usr_quota_inum) { 715 if ((qf_ino = quota_file_exists(fs, USRQUOTA, 716 QFMT_VFS_V1)) > 0) 717 quota_update_limits(qctx, qf_ino, USRQUOTA); 718 quota_write_inode(qctx, USRQUOTA); 719 } else if (usrquota == QOPT_DISABLE) { 720 quota_remove_inode(fs, USRQUOTA); 721 } 722 723 if (grpquota == QOPT_ENABLE && !fs->super->s_grp_quota_inum) { 724 if ((qf_ino = quota_file_exists(fs, GRPQUOTA, 725 QFMT_VFS_V1)) > 0) 726 quota_update_limits(qctx, qf_ino, GRPQUOTA); 727 quota_write_inode(qctx, GRPQUOTA); 728 } else if (grpquota == QOPT_DISABLE) { 729 quota_remove_inode(fs, GRPQUOTA); 730 } 731 732 quota_release_context(&qctx); 733 734 if ((usrquota == QOPT_ENABLE) || (grpquota == QOPT_ENABLE)) { 735 fs->super->s_feature_ro_compat |= EXT4_FEATURE_RO_COMPAT_QUOTA; 736 ext2fs_mark_super_dirty(fs); 737 } else if ((usrquota == QOPT_DISABLE) && (grpquota == QOPT_DISABLE)) { 738 fs->super->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA; 739 ext2fs_mark_super_dirty(fs); 740 } 741 742 return; 743} 744 745void parse_quota_opts(const char *opts) 746{ 747 char *buf, *token, *next, *p; 748 int len; 749 750 len = strlen(opts); 751 buf = malloc(len+1); 752 if (!buf) { 753 fputs(_("Couldn't allocate memory to parse quota " 754 "options!\n"), stderr); 755 exit(1); 756 } 757 strcpy(buf, opts); 758 for (token = buf; token && *token; token = next) { 759 p = strchr(token, ','); 760 next = 0; 761 if (p) { 762 *p = 0; 763 next = p+1; 764 } 765 766 if (strcmp(token, "usrquota") == 0) { 767 usrquota = QOPT_ENABLE; 768 } else if (strcmp(token, "^usrquota") == 0) { 769 usrquota = QOPT_DISABLE; 770 } else if (strcmp(token, "grpquota") == 0) { 771 grpquota = QOPT_ENABLE; 772 } else if (strcmp(token, "^grpquota") == 0) { 773 grpquota = QOPT_DISABLE; 774 } else { 775 fputs(_("\nBad quota options specified.\n\n" 776 "Following valid quota options are available " 777 "(pass by separating with comma):\n" 778 "\t[^]usrquota\n" 779 "\t[^]grpquota\n" 780 "\n\n"), stderr); 781 free(buf); 782 exit(1); 783 } 784 } 785 free(buf); 786} 787 788 789 790static void parse_e2label_options(int argc, char ** argv) 791{ 792 if ((argc < 2) || (argc > 3)) { 793 fputs(_("Usage: e2label device [newlabel]\n"), stderr); 794 exit(1); 795 } 796 io_options = strchr(argv[1], '?'); 797 if (io_options) 798 *io_options++ = 0; 799 device_name = blkid_get_devname(NULL, argv[1], NULL); 800 if (!device_name) { 801 com_err("e2label", 0, _("Unable to resolve '%s'"), 802 argv[1]); 803 exit(1); 804 } 805 open_flag = EXT2_FLAG_JOURNAL_DEV_OK; 806 if (argc == 3) { 807 open_flag |= EXT2_FLAG_RW; 808 L_flag = 1; 809 new_label = argv[2]; 810 } else 811 print_label++; 812} 813 814static time_t parse_time(char *str) 815{ 816 struct tm ts; 817 818 if (strcmp(str, "now") == 0) { 819 return (time(0)); 820 } 821 memset(&ts, 0, sizeof(ts)); 822#ifdef HAVE_STRPTIME 823 strptime(str, "%Y%m%d%H%M%S", &ts); 824#else 825 sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon, 826 &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec); 827 ts.tm_year -= 1900; 828 ts.tm_mon -= 1; 829 if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 || 830 ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 || 831 ts.tm_min > 59 || ts.tm_sec > 61) 832 ts.tm_mday = 0; 833#endif 834 if (ts.tm_mday == 0) { 835 com_err(program_name, 0, 836 _("Couldn't parse date/time specifier: %s"), 837 str); 838 usage(); 839 } 840 ts.tm_isdst = -1; 841 return (mktime(&ts)); 842} 843 844static void parse_tune2fs_options(int argc, char **argv) 845{ 846 int c; 847 char *tmp; 848 struct group *gr; 849 struct passwd *pw; 850 851 open_flag = 0; 852 853 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE); 854 while ((c = getopt(argc, argv, "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:Q:T:U:")) != EOF) 855 switch (c) { 856 case 'c': 857 max_mount_count = strtol(optarg, &tmp, 0); 858 if (*tmp || max_mount_count > 16000) { 859 com_err(program_name, 0, 860 _("bad mounts count - %s"), 861 optarg); 862 usage(); 863 } 864 if (max_mount_count == 0) 865 max_mount_count = -1; 866 c_flag = 1; 867 open_flag = EXT2_FLAG_RW; 868 break; 869 case 'C': 870 mount_count = strtoul(optarg, &tmp, 0); 871 if (*tmp || mount_count > 16000) { 872 com_err(program_name, 0, 873 _("bad mounts count - %s"), 874 optarg); 875 usage(); 876 } 877 C_flag = 1; 878 open_flag = EXT2_FLAG_RW; 879 break; 880 case 'e': 881 if (strcmp(optarg, "continue") == 0) 882 errors = EXT2_ERRORS_CONTINUE; 883 else if (strcmp(optarg, "remount-ro") == 0) 884 errors = EXT2_ERRORS_RO; 885 else if (strcmp(optarg, "panic") == 0) 886 errors = EXT2_ERRORS_PANIC; 887 else { 888 com_err(program_name, 0, 889 _("bad error behavior - %s"), 890 optarg); 891 usage(); 892 } 893 e_flag = 1; 894 open_flag = EXT2_FLAG_RW; 895 break; 896 case 'E': 897 extended_cmd = optarg; 898 open_flag |= EXT2_FLAG_RW; 899 break; 900 case 'f': /* Force */ 901 f_flag = 1; 902 break; 903 case 'g': 904 resgid = strtoul(optarg, &tmp, 0); 905 if (*tmp) { 906 gr = getgrnam(optarg); 907 if (gr == NULL) 908 tmp = optarg; 909 else { 910 resgid = gr->gr_gid; 911 *tmp = 0; 912 } 913 } 914 if (*tmp) { 915 com_err(program_name, 0, 916 _("bad gid/group name - %s"), 917 optarg); 918 usage(); 919 } 920 g_flag = 1; 921 open_flag = EXT2_FLAG_RW; 922 break; 923 case 'i': 924 interval = strtoul(optarg, &tmp, 0); 925 switch (*tmp) { 926 case 's': 927 tmp++; 928 break; 929 case '\0': 930 case 'd': 931 case 'D': /* days */ 932 interval *= 86400; 933 if (*tmp != '\0') 934 tmp++; 935 break; 936 case 'm': 937 case 'M': /* months! */ 938 interval *= 86400 * 30; 939 tmp++; 940 break; 941 case 'w': 942 case 'W': /* weeks */ 943 interval *= 86400 * 7; 944 tmp++; 945 break; 946 } 947 if (*tmp) { 948 com_err(program_name, 0, 949 _("bad interval - %s"), optarg); 950 usage(); 951 } 952 i_flag = 1; 953 open_flag = EXT2_FLAG_RW; 954 break; 955 case 'j': 956 if (!journal_size) 957 journal_size = -1; 958 open_flag = EXT2_FLAG_RW; 959 break; 960 case 'J': 961 parse_journal_opts(optarg); 962 open_flag = EXT2_FLAG_RW; 963 break; 964 case 'l': 965 l_flag = 1; 966 break; 967 case 'L': 968 new_label = optarg; 969 L_flag = 1; 970 open_flag |= EXT2_FLAG_RW | 971 EXT2_FLAG_JOURNAL_DEV_OK; 972 break; 973 case 'm': 974 reserved_ratio = strtod(optarg, &tmp); 975 if (*tmp || reserved_ratio > 50 || 976 reserved_ratio < 0) { 977 com_err(program_name, 0, 978 _("bad reserved block ratio - %s"), 979 optarg); 980 usage(); 981 } 982 m_flag = 1; 983 open_flag = EXT2_FLAG_RW; 984 break; 985 case 'M': 986 new_last_mounted = optarg; 987 M_flag = 1; 988 open_flag = EXT2_FLAG_RW; 989 break; 990 case 'o': 991 if (mntopts_cmd) { 992 com_err(program_name, 0, 993 _("-o may only be specified once")); 994 usage(); 995 } 996 mntopts_cmd = optarg; 997 open_flag = EXT2_FLAG_RW; 998 break; 999 case 'O': 1000 if (features_cmd) { 1001 com_err(program_name, 0, 1002 _("-O may only be specified once")); 1003 usage(); 1004 } 1005 features_cmd = optarg; 1006 open_flag = EXT2_FLAG_RW; 1007 break; 1008 case 'Q': 1009 Q_flag = 1; 1010 parse_quota_opts(optarg); 1011 open_flag = EXT2_FLAG_RW; 1012 break; 1013 case 'r': 1014 reserved_blocks = strtoul(optarg, &tmp, 0); 1015 if (*tmp) { 1016 com_err(program_name, 0, 1017 _("bad reserved blocks count - %s"), 1018 optarg); 1019 usage(); 1020 } 1021 r_flag = 1; 1022 open_flag = EXT2_FLAG_RW; 1023 break; 1024 case 's': /* Deprecated */ 1025 s_flag = atoi(optarg); 1026 open_flag = EXT2_FLAG_RW; 1027 break; 1028 case 'T': 1029 T_flag = 1; 1030 last_check_time = parse_time(optarg); 1031 open_flag = EXT2_FLAG_RW; 1032 break; 1033 case 'u': 1034 resuid = strtoul(optarg, &tmp, 0); 1035 if (*tmp) { 1036 pw = getpwnam(optarg); 1037 if (pw == NULL) 1038 tmp = optarg; 1039 else { 1040 resuid = pw->pw_uid; 1041 *tmp = 0; 1042 } 1043 } 1044 if (*tmp) { 1045 com_err(program_name, 0, 1046 _("bad uid/user name - %s"), 1047 optarg); 1048 usage(); 1049 } 1050 u_flag = 1; 1051 open_flag = EXT2_FLAG_RW; 1052 break; 1053 case 'U': 1054 new_UUID = optarg; 1055 U_flag = 1; 1056 open_flag = EXT2_FLAG_RW | 1057 EXT2_FLAG_JOURNAL_DEV_OK; 1058 break; 1059 case 'I': 1060 new_inode_size = strtoul(optarg, &tmp, 0); 1061 if (*tmp) { 1062 com_err(program_name, 0, 1063 _("bad inode size - %s"), 1064 optarg); 1065 usage(); 1066 } 1067 if (!((new_inode_size & 1068 (new_inode_size - 1)) == 0)) { 1069 com_err(program_name, 0, 1070 _("Inode size must be a " 1071 "power of two- %s"), 1072 optarg); 1073 usage(); 1074 } 1075 open_flag = EXT2_FLAG_RW; 1076 I_flag = 1; 1077 break; 1078 default: 1079 usage(); 1080 } 1081 if (optind < argc - 1 || optind == argc) 1082 usage(); 1083 if (!open_flag && !l_flag) 1084 usage(); 1085 io_options = strchr(argv[optind], '?'); 1086 if (io_options) 1087 *io_options++ = 0; 1088 device_name = blkid_get_devname(NULL, argv[optind], NULL); 1089 if (!device_name) { 1090 com_err("tune2fs", 0, _("Unable to resolve '%s'"), 1091 argv[optind]); 1092 exit(1); 1093 } 1094} 1095 1096#ifdef CONFIG_BUILD_FINDFS 1097void do_findfs(int argc, char **argv) 1098{ 1099 char *dev; 1100 1101 if ((argc != 2) || 1102 (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) { 1103 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n"); 1104 exit(2); 1105 } 1106 dev = blkid_get_devname(NULL, argv[1], NULL); 1107 if (!dev) { 1108 com_err("findfs", 0, _("Unable to resolve '%s'"), 1109 argv[1]); 1110 exit(1); 1111 } 1112 puts(dev); 1113 exit(0); 1114} 1115#endif 1116 1117static int parse_extended_opts(ext2_filsys fs, const char *opts) 1118{ 1119 char *buf, *token, *next, *p, *arg; 1120 int len, hash_alg; 1121 int r_usage = 0; 1122 1123 len = strlen(opts); 1124 buf = malloc(len+1); 1125 if (!buf) { 1126 fprintf(stderr, 1127 _("Couldn't allocate memory to parse options!\n")); 1128 return 1; 1129 } 1130 strcpy(buf, opts); 1131 for (token = buf; token && *token; token = next) { 1132 p = strchr(token, ','); 1133 next = 0; 1134 if (p) { 1135 *p = 0; 1136 next = p+1; 1137 } 1138 arg = strchr(token, '='); 1139 if (arg) { 1140 *arg = 0; 1141 arg++; 1142 } 1143 if (strcmp(token, "clear-mmp") == 0 || 1144 strcmp(token, "clear_mmp") == 0) { 1145 clear_mmp = 1; 1146 } else if (strcmp(token, "mmp_update_interval") == 0) { 1147 unsigned long interval; 1148 if (!arg) { 1149 r_usage++; 1150 continue; 1151 } 1152 interval = strtoul(arg, &p, 0); 1153 if (*p) { 1154 fprintf(stderr, 1155 _("Invalid mmp_update_interval: %s\n"), 1156 arg); 1157 r_usage++; 1158 continue; 1159 } 1160 if (interval == 0) { 1161 interval = EXT4_MMP_UPDATE_INTERVAL; 1162 } else if (interval > EXT4_MMP_MAX_UPDATE_INTERVAL) { 1163 fprintf(stderr, 1164 _("mmp_update_interval too big: %lu\n"), 1165 interval); 1166 r_usage++; 1167 continue; 1168 } 1169 printf(P_("Setting multiple mount protection update " 1170 "interval to %lu second\n", 1171 "Setting multiple mount protection update " 1172 "interval to %lu seconds\n", interval), 1173 interval); 1174 fs->super->s_mmp_update_interval = interval; 1175 ext2fs_mark_super_dirty(fs); 1176 } else if (!strcmp(token, "test_fs")) { 1177 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS; 1178 printf("Setting test filesystem flag\n"); 1179 ext2fs_mark_super_dirty(fs); 1180 } else if (!strcmp(token, "^test_fs")) { 1181 fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS; 1182 printf("Clearing test filesystem flag\n"); 1183 ext2fs_mark_super_dirty(fs); 1184 } else if (strcmp(token, "stride") == 0) { 1185 if (!arg) { 1186 r_usage++; 1187 continue; 1188 } 1189 stride = strtoul(arg, &p, 0); 1190 if (*p) { 1191 fprintf(stderr, 1192 _("Invalid RAID stride: %s\n"), 1193 arg); 1194 r_usage++; 1195 continue; 1196 } 1197 stride_set = 1; 1198 } else if (strcmp(token, "stripe-width") == 0 || 1199 strcmp(token, "stripe_width") == 0) { 1200 if (!arg) { 1201 r_usage++; 1202 continue; 1203 } 1204 stripe_width = strtoul(arg, &p, 0); 1205 if (*p) { 1206 fprintf(stderr, 1207 _("Invalid RAID stripe-width: %s\n"), 1208 arg); 1209 r_usage++; 1210 continue; 1211 } 1212 stripe_width_set = 1; 1213 } else if (strcmp(token, "hash_alg") == 0 || 1214 strcmp(token, "hash-alg") == 0) { 1215 if (!arg) { 1216 r_usage++; 1217 continue; 1218 } 1219 hash_alg = e2p_string2hash(arg); 1220 if (hash_alg < 0) { 1221 fprintf(stderr, 1222 _("Invalid hash algorithm: %s\n"), 1223 arg); 1224 r_usage++; 1225 continue; 1226 } 1227 fs->super->s_def_hash_version = hash_alg; 1228 printf(_("Setting default hash algorithm " 1229 "to %s (%d)\n"), 1230 arg, hash_alg); 1231 ext2fs_mark_super_dirty(fs); 1232 } else if (!strcmp(token, "mount_opts")) { 1233 if (!arg) { 1234 r_usage++; 1235 continue; 1236 } 1237 if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) { 1238 fprintf(stderr, 1239 "Extended mount options too long\n"); 1240 continue; 1241 } 1242 ext_mount_opts = strdup(arg); 1243 } else 1244 r_usage++; 1245 } 1246 if (r_usage) { 1247 fprintf(stderr, _("\nBad options specified.\n\n" 1248 "Extended options are separated by commas, " 1249 "and may take an argument which\n" 1250 "\tis set off by an equals ('=') sign.\n\n" 1251 "Valid extended options are:\n" 1252 "\tclear_mmp\n" 1253 "\thash_alg=<hash algorithm>\n" 1254 "\tmount_opts=<extended default mount options>\n" 1255 "\tstride=<RAID per-disk chunk size in blocks>\n" 1256 "\tstripe_width=<RAID stride*data disks in blocks>\n" 1257 "\ttest_fs\n" 1258 "\t^test_fs\n")); 1259 free(buf); 1260 return 1; 1261 } 1262 free(buf); 1263 1264 return 0; 1265} 1266 1267/* 1268 * Fill in the block bitmap bmap with the information regarding the 1269 * blocks to be moved 1270 */ 1271static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp, 1272 ext2fs_block_bitmap bmap) 1273{ 1274 dgrp_t i; 1275 int retval; 1276 ext2_badblocks_list bb_list = 0; 1277 blk64_t j, needed_blocks = 0; 1278 blk64_t start_blk, end_blk; 1279 1280 retval = ext2fs_read_bb_inode(fs, &bb_list); 1281 if (retval) 1282 return retval; 1283 1284 for (i = 0; i < fs->group_desc_count; i++) { 1285 start_blk = ext2fs_inode_table_loc(fs, i) + 1286 fs->inode_blocks_per_group; 1287 1288 end_blk = ext2fs_inode_table_loc(fs, i) + 1289 new_ino_blks_per_grp; 1290 1291 for (j = start_blk; j < end_blk; j++) { 1292 if (ext2fs_test_block_bitmap2(fs->block_map, j)) { 1293 /* 1294 * IF the block is a bad block we fail 1295 */ 1296 if (ext2fs_badblocks_list_test(bb_list, j)) { 1297 ext2fs_badblocks_list_free(bb_list); 1298 return ENOSPC; 1299 } 1300 1301 ext2fs_mark_block_bitmap2(bmap, j); 1302 } else { 1303 /* 1304 * We are going to use this block for 1305 * inode table. So mark them used. 1306 */ 1307 ext2fs_mark_block_bitmap2(fs->block_map, j); 1308 } 1309 } 1310 needed_blocks += end_blk - start_blk; 1311 } 1312 1313 ext2fs_badblocks_list_free(bb_list); 1314 if (needed_blocks > ext2fs_free_blocks_count(fs->super)) 1315 return ENOSPC; 1316 1317 return 0; 1318} 1319 1320static int ext2fs_is_meta_block(ext2_filsys fs, blk_t blk) 1321{ 1322 dgrp_t group; 1323 group = ext2fs_group_of_blk(fs, blk); 1324 if (ext2fs_block_bitmap_loc(fs, group) == blk) 1325 return 1; 1326 if (ext2fs_inode_bitmap_loc(fs, group) == blk) 1327 return 1; 1328 return 0; 1329} 1330 1331static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk_t blk) 1332{ 1333 blk_t start_blk, end_blk; 1334 start_blk = fs->super->s_first_data_block + 1335 EXT2_BLOCKS_PER_GROUP(fs->super) * group; 1336 /* 1337 * We cannot get new block beyond end_blk for for the last block group 1338 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group 1339 */ 1340 end_blk = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super); 1341 if (blk >= start_blk && blk <= end_blk) 1342 return 1; 1343 return 0; 1344} 1345 1346static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap) 1347{ 1348 1349 char *buf; 1350 dgrp_t group = 0; 1351 errcode_t retval; 1352 int meta_data = 0; 1353 blk64_t blk, new_blk, goal; 1354 struct blk_move *bmv; 1355 1356 retval = ext2fs_get_mem(fs->blocksize, &buf); 1357 if (retval) 1358 return retval; 1359 1360 for (new_blk = blk = fs->super->s_first_data_block; 1361 blk < ext2fs_blocks_count(fs->super); blk++) { 1362 if (!ext2fs_test_block_bitmap2(bmap, blk)) 1363 continue; 1364 1365 if (ext2fs_is_meta_block(fs, blk)) { 1366 /* 1367 * If the block is mapping a fs meta data block 1368 * like group desc/block bitmap/inode bitmap. We 1369 * should find a block in the same group and fix 1370 * the respective fs metadata pointers. Otherwise 1371 * fail 1372 */ 1373 group = ext2fs_group_of_blk(fs, blk); 1374 goal = ext2fs_group_first_block2(fs, group); 1375 meta_data = 1; 1376 1377 } else { 1378 goal = new_blk; 1379 } 1380 retval = ext2fs_new_block2(fs, goal, NULL, &new_blk); 1381 if (retval) 1382 goto err_out; 1383 1384 /* new fs meta data block should be in the same group */ 1385 if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) { 1386 retval = ENOSPC; 1387 goto err_out; 1388 } 1389 1390 /* Mark this block as allocated */ 1391 ext2fs_mark_block_bitmap2(fs->block_map, new_blk); 1392 1393 /* Add it to block move list */ 1394 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv); 1395 if (retval) 1396 goto err_out; 1397 1398 bmv->old_loc = blk; 1399 bmv->new_loc = new_blk; 1400 1401 list_add(&(bmv->list), &blk_move_list); 1402 1403 retval = io_channel_read_blk64(fs->io, blk, 1, buf); 1404 if (retval) 1405 goto err_out; 1406 1407 retval = io_channel_write_blk64(fs->io, new_blk, 1, buf); 1408 if (retval) 1409 goto err_out; 1410 } 1411 1412err_out: 1413 ext2fs_free_mem(&buf); 1414 return retval; 1415} 1416 1417static blk64_t translate_block(blk64_t blk) 1418{ 1419 struct list_head *entry; 1420 struct blk_move *bmv; 1421 1422 list_for_each(entry, &blk_move_list) { 1423 bmv = list_entry(entry, struct blk_move, list); 1424 if (bmv->old_loc == blk) 1425 return bmv->new_loc; 1426 } 1427 1428 return 0; 1429} 1430 1431static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)), 1432 blk64_t *block_nr, 1433 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 1434 blk64_t ref_block EXT2FS_ATTR((unused)), 1435 int ref_offset EXT2FS_ATTR((unused)), 1436 void *priv_data) 1437{ 1438 int ret = 0; 1439 blk64_t new_blk; 1440 ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data; 1441 1442 if (!ext2fs_test_block_bitmap2(bmap, *block_nr)) 1443 return 0; 1444 new_blk = translate_block(*block_nr); 1445 if (new_blk) { 1446 *block_nr = new_blk; 1447 /* 1448 * This will force the ext2fs_write_inode in the iterator 1449 */ 1450 ret |= BLOCK_CHANGED; 1451 } 1452 1453 return ret; 1454} 1455 1456static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap) 1457{ 1458 errcode_t retval = 0; 1459 ext2_ino_t ino; 1460 blk64_t blk; 1461 char *block_buf = 0; 1462 struct ext2_inode inode; 1463 ext2_inode_scan scan = NULL; 1464 1465 retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf); 1466 if (retval) 1467 return retval; 1468 1469 retval = ext2fs_open_inode_scan(fs, 0, &scan); 1470 if (retval) 1471 goto err_out; 1472 1473 while (1) { 1474 retval = ext2fs_get_next_inode(scan, &ino, &inode); 1475 if (retval) 1476 goto err_out; 1477 1478 if (!ino) 1479 break; 1480 1481 if (inode.i_links_count == 0) 1482 continue; /* inode not in use */ 1483 1484 /* FIXME!! 1485 * If we end up modifying the journal inode 1486 * the sb->s_jnl_blocks will differ. But a 1487 * subsequent e2fsck fixes that. 1488 * Do we need to fix this ?? 1489 */ 1490 1491 if (ext2fs_file_acl_block(fs, &inode) && 1492 ext2fs_test_block_bitmap2(bmap, 1493 ext2fs_file_acl_block(fs, &inode))) { 1494 blk = translate_block(ext2fs_file_acl_block(fs, 1495 &inode)); 1496 if (!blk) 1497 continue; 1498 1499 ext2fs_file_acl_block_set(fs, &inode, blk); 1500 1501 /* 1502 * Write the inode to disk so that inode table 1503 * resizing can work 1504 */ 1505 retval = ext2fs_write_inode(fs, ino, &inode); 1506 if (retval) 1507 goto err_out; 1508 } 1509 1510 if (!ext2fs_inode_has_valid_blocks2(fs, &inode)) 1511 continue; 1512 1513 retval = ext2fs_block_iterate3(fs, ino, 0, block_buf, 1514 process_block, bmap); 1515 if (retval) 1516 goto err_out; 1517 1518 } 1519 1520err_out: 1521 ext2fs_free_mem(&block_buf); 1522 1523 return retval; 1524} 1525 1526/* 1527 * We need to scan for inode and block bitmaps that may need to be 1528 * moved. This can take place if the filesystem was formatted for 1529 * RAID arrays using the mke2fs's extended option "stride". 1530 */ 1531static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap) 1532{ 1533 dgrp_t i; 1534 blk_t blk, new_blk; 1535 1536 for (i = 0; i < fs->group_desc_count; i++) { 1537 blk = ext2fs_block_bitmap_loc(fs, i); 1538 if (ext2fs_test_block_bitmap2(bmap, blk)) { 1539 new_blk = translate_block(blk); 1540 if (!new_blk) 1541 continue; 1542 ext2fs_block_bitmap_loc_set(fs, i, new_blk); 1543 } 1544 1545 blk = ext2fs_inode_bitmap_loc(fs, i); 1546 if (ext2fs_test_block_bitmap2(bmap, blk)) { 1547 new_blk = translate_block(blk); 1548 if (!new_blk) 1549 continue; 1550 ext2fs_inode_bitmap_loc_set(fs, i, new_blk); 1551 } 1552 } 1553 return 0; 1554} 1555 1556static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size) 1557{ 1558 dgrp_t i; 1559 blk64_t blk; 1560 errcode_t retval; 1561 int new_ino_blks_per_grp; 1562 unsigned int j; 1563 char *old_itable = NULL, *new_itable = NULL; 1564 char *tmp_old_itable = NULL, *tmp_new_itable = NULL; 1565 unsigned long old_ino_size; 1566 int old_itable_size, new_itable_size; 1567 1568 old_itable_size = fs->inode_blocks_per_group * fs->blocksize; 1569 old_ino_size = EXT2_INODE_SIZE(fs->super); 1570 1571 new_ino_blks_per_grp = ext2fs_div_ceil( 1572 EXT2_INODES_PER_GROUP(fs->super) * 1573 new_ino_size, 1574 fs->blocksize); 1575 1576 new_itable_size = new_ino_blks_per_grp * fs->blocksize; 1577 1578 retval = ext2fs_get_mem(old_itable_size, &old_itable); 1579 if (retval) 1580 return retval; 1581 1582 retval = ext2fs_get_mem(new_itable_size, &new_itable); 1583 if (retval) 1584 goto err_out; 1585 1586 tmp_old_itable = old_itable; 1587 tmp_new_itable = new_itable; 1588 1589 for (i = 0; i < fs->group_desc_count; i++) { 1590 blk = ext2fs_inode_table_loc(fs, i); 1591 retval = io_channel_read_blk64(fs->io, blk, 1592 fs->inode_blocks_per_group, old_itable); 1593 if (retval) 1594 goto err_out; 1595 1596 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) { 1597 memcpy(new_itable, old_itable, old_ino_size); 1598 1599 memset(new_itable+old_ino_size, 0, 1600 new_ino_size - old_ino_size); 1601 1602 new_itable += new_ino_size; 1603 old_itable += old_ino_size; 1604 } 1605 1606 /* reset the pointer */ 1607 old_itable = tmp_old_itable; 1608 new_itable = tmp_new_itable; 1609 1610 retval = io_channel_write_blk64(fs->io, blk, 1611 new_ino_blks_per_grp, new_itable); 1612 if (retval) 1613 goto err_out; 1614 } 1615 1616 /* Update the meta data */ 1617 fs->inode_blocks_per_group = new_ino_blks_per_grp; 1618 fs->super->s_inode_size = new_ino_size; 1619 1620err_out: 1621 if (old_itable) 1622 ext2fs_free_mem(&old_itable); 1623 1624 if (new_itable) 1625 ext2fs_free_mem(&new_itable); 1626 1627 return retval; 1628} 1629 1630static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs) 1631{ 1632 blk64_t blk; 1633 ext2_ino_t ino; 1634 unsigned int group = 0; 1635 unsigned int count = 0; 1636 int total_free = 0; 1637 int group_free = 0; 1638 1639 /* 1640 * First calculate the block statistics 1641 */ 1642 for (blk = fs->super->s_first_data_block; 1643 blk < ext2fs_blocks_count(fs->super); blk++) { 1644 if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) { 1645 group_free++; 1646 total_free++; 1647 } 1648 count++; 1649 if ((count == fs->super->s_blocks_per_group) || 1650 (blk == ext2fs_blocks_count(fs->super)-1)) { 1651 ext2fs_bg_free_blocks_count_set(fs, group++, 1652 group_free); 1653 count = 0; 1654 group_free = 0; 1655 } 1656 } 1657 total_free = EXT2FS_C2B(fs, total_free); 1658 ext2fs_free_blocks_count_set(fs->super, total_free); 1659 1660 /* 1661 * Next, calculate the inode statistics 1662 */ 1663 group_free = 0; 1664 total_free = 0; 1665 count = 0; 1666 group = 0; 1667 1668 /* Protect loop from wrap-around if s_inodes_count maxed */ 1669 for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) { 1670 if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) { 1671 group_free++; 1672 total_free++; 1673 } 1674 count++; 1675 if ((count == fs->super->s_inodes_per_group) || 1676 (ino == fs->super->s_inodes_count)) { 1677 ext2fs_bg_free_inodes_count_set(fs, group++, 1678 group_free); 1679 count = 0; 1680 group_free = 0; 1681 } 1682 } 1683 fs->super->s_free_inodes_count = total_free; 1684 ext2fs_mark_super_dirty(fs); 1685 return 0; 1686} 1687 1688#define list_for_each_safe(pos, pnext, head) \ 1689 for (pos = (head)->next, pnext = pos->next; pos != (head); \ 1690 pos = pnext, pnext = pos->next) 1691 1692static void free_blk_move_list(void) 1693{ 1694 struct list_head *entry, *tmp; 1695 struct blk_move *bmv; 1696 1697 list_for_each_safe(entry, tmp, &blk_move_list) { 1698 bmv = list_entry(entry, struct blk_move, list); 1699 list_del(entry); 1700 ext2fs_free_mem(&bmv); 1701 } 1702 return; 1703} 1704 1705static int resize_inode(ext2_filsys fs, unsigned long new_size) 1706{ 1707 errcode_t retval; 1708 int new_ino_blks_per_grp; 1709 ext2fs_block_bitmap bmap; 1710 1711 retval = ext2fs_read_inode_bitmap(fs); 1712 if (retval) { 1713 fputs(_("Failed to read inode bitmap\n"), stderr); 1714 return retval; 1715 } 1716 retval = ext2fs_read_block_bitmap(fs); 1717 if (retval) { 1718 fputs(_("Failed to read block bitmap\n"), stderr); 1719 return retval; 1720 } 1721 INIT_LIST_HEAD(&blk_move_list); 1722 1723 1724 new_ino_blks_per_grp = ext2fs_div_ceil( 1725 EXT2_INODES_PER_GROUP(fs->super)* 1726 new_size, 1727 fs->blocksize); 1728 1729 /* We may change the file system. 1730 * Mark the file system as invalid so that 1731 * the user is prompted to run fsck. 1732 */ 1733 fs->super->s_state &= ~EXT2_VALID_FS; 1734 1735 retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"), 1736 &bmap); 1737 if (retval) { 1738 fputs(_("Failed to allocate block bitmap when " 1739 "increasing inode size\n"), stderr); 1740 return retval; 1741 } 1742 retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap); 1743 if (retval) { 1744 fputs(_("Not enough space to increase inode size \n"), stderr); 1745 goto err_out; 1746 } 1747 retval = move_block(fs, bmap); 1748 if (retval) { 1749 fputs(_("Failed to relocate blocks during inode resize \n"), 1750 stderr); 1751 goto err_out; 1752 } 1753 retval = inode_scan_and_fix(fs, bmap); 1754 if (retval) 1755 goto err_out_undo; 1756 1757 retval = group_desc_scan_and_fix(fs, bmap); 1758 if (retval) 1759 goto err_out_undo; 1760 1761 retval = expand_inode_table(fs, new_size); 1762 if (retval) 1763 goto err_out_undo; 1764 1765 ext2fs_calculate_summary_stats(fs); 1766 1767 fs->super->s_state |= EXT2_VALID_FS; 1768 /* mark super block and block bitmap as dirty */ 1769 ext2fs_mark_super_dirty(fs); 1770 ext2fs_mark_bb_dirty(fs); 1771 1772err_out: 1773 free_blk_move_list(); 1774 ext2fs_free_block_bitmap(bmap); 1775 1776 return retval; 1777 1778err_out_undo: 1779 free_blk_move_list(); 1780 ext2fs_free_block_bitmap(bmap); 1781 fputs(_("Error in resizing the inode size.\n" 1782 "Run e2undo to undo the " 1783 "file system changes. \n"), stderr); 1784 1785 return retval; 1786} 1787 1788static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr) 1789{ 1790 errcode_t retval = 0; 1791 const char *tdb_dir; 1792 char *tdb_file; 1793 char *dev_name, *tmp_name; 1794 1795#if 0 /* FIXME!! */ 1796 /* 1797 * Configuration via a conf file would be 1798 * nice 1799 */ 1800 profile_get_string(profile, "scratch_files", 1801 "directory", 0, 0, 1802 &tdb_dir); 1803#endif 1804 tmp_name = strdup(name); 1805 if (!tmp_name) { 1806 alloc_fn_fail: 1807 com_err(program_name, ENOMEM, 1808 _("Couldn't allocate memory for tdb filename\n")); 1809 return ENOMEM; 1810 } 1811 dev_name = basename(tmp_name); 1812 1813 tdb_dir = getenv("E2FSPROGS_UNDO_DIR"); 1814 if (!tdb_dir) 1815 tdb_dir = "/var/lib/e2fsprogs"; 1816 1817 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || 1818 access(tdb_dir, W_OK)) 1819 return 0; 1820 1821 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1); 1822 if (!tdb_file) 1823 goto alloc_fn_fail; 1824 sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name); 1825 1826 if (!access(tdb_file, F_OK)) { 1827 if (unlink(tdb_file) < 0) { 1828 retval = errno; 1829 com_err(program_name, retval, 1830 _("while trying to delete %s"), 1831 tdb_file); 1832 free(tdb_file); 1833 return retval; 1834 } 1835 } 1836 1837 set_undo_io_backing_manager(*io_ptr); 1838 *io_ptr = undo_io_manager; 1839 set_undo_io_backup_file(tdb_file); 1840 printf(_("To undo the tune2fs operation please run " 1841 "the command\n e2undo %s %s\n\n"), 1842 tdb_file, name); 1843 free(tdb_file); 1844 free(tmp_name); 1845 return retval; 1846} 1847 1848int main(int argc, char **argv) 1849{ 1850 errcode_t retval; 1851 ext2_filsys fs; 1852 struct ext2_super_block *sb; 1853 io_manager io_ptr, io_ptr_orig = NULL; 1854 int rc = 0; 1855 1856#ifdef ENABLE_NLS 1857 setlocale(LC_MESSAGES, ""); 1858 setlocale(LC_CTYPE, ""); 1859 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 1860 textdomain(NLS_CAT_NAME); 1861 set_com_err_gettext(gettext); 1862#endif 1863 if (argc && *argv) 1864 program_name = *argv; 1865 add_error_table(&et_ext2_error_table); 1866 1867#ifdef CONFIG_BUILD_FINDFS 1868 if (strcmp(get_progname(argv[0]), "findfs") == 0) 1869 do_findfs(argc, argv); 1870#endif 1871 if (strcmp(get_progname(argv[0]), "e2label") == 0) 1872 parse_e2label_options(argc, argv); 1873 else 1874 parse_tune2fs_options(argc, argv); 1875 1876#ifdef CONFIG_TESTIO_DEBUG 1877 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) { 1878 io_ptr = test_io_manager; 1879 test_io_backing_manager = unix_io_manager; 1880 } else 1881#endif 1882 io_ptr = unix_io_manager; 1883 1884retry_open: 1885 if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag) 1886 open_flag |= EXT2_FLAG_SKIP_MMP; 1887 1888 open_flag |= EXT2_FLAG_64BITS; 1889 1890 /* keep the filesystem struct around to dump MMP data */ 1891 open_flag |= EXT2_FLAG_NOFREE_ON_ERROR; 1892 1893 retval = ext2fs_open2(device_name, io_options, open_flag, 1894 0, 0, io_ptr, &fs); 1895 if (retval) { 1896 com_err(program_name, retval, 1897 _("while trying to open %s"), 1898 device_name); 1899 if (retval == EXT2_ET_MMP_FSCK_ON || 1900 retval == EXT2_ET_MMP_UNKNOWN_SEQ) 1901 dump_mmp_msg(fs->mmp_buf, 1902 _("If you are sure the filesystem " 1903 "is not in use on any node, run:\n" 1904 "'tune2fs -f -E clear_mmp {device}'\n")); 1905 else if (retval == EXT2_ET_MMP_FAILED) 1906 dump_mmp_msg(fs->mmp_buf, NULL); 1907 else if (retval == EXT2_ET_MMP_MAGIC_INVALID) 1908 fprintf(stderr, 1909 _("MMP block magic is bad. Try to fix it by " 1910 "running:\n'e2fsck -f %s'\n"), device_name); 1911 else if (retval != EXT2_ET_MMP_FAILED) 1912 fprintf(stderr, 1913 _("Couldn't find valid filesystem superblock.\n")); 1914 1915 ext2fs_free(fs); 1916 exit(1); 1917 } 1918 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE; 1919 1920 if (I_flag && !io_ptr_orig) { 1921 /* 1922 * Check the inode size is right so we can issue an 1923 * error message and bail before setting up the tdb 1924 * file. 1925 */ 1926 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) { 1927 fprintf(stderr, _("The inode size is already %lu\n"), 1928 new_inode_size); 1929 rc = 1; 1930 goto closefs; 1931 } 1932 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) { 1933 fprintf(stderr, _("Shrinking the inode size is " 1934 "not supported\n")); 1935 rc = 1; 1936 goto closefs; 1937 } 1938 1939 /* 1940 * If inode resize is requested use the 1941 * Undo I/O manager 1942 */ 1943 io_ptr_orig = io_ptr; 1944 retval = tune2fs_setup_tdb(device_name, &io_ptr); 1945 if (retval) { 1946 rc = 1; 1947 goto closefs; 1948 } 1949 if (io_ptr != io_ptr_orig) { 1950 ext2fs_close(fs); 1951 goto retry_open; 1952 } 1953 } 1954 1955 sb = fs->super; 1956 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; 1957 1958 if (print_label) { 1959 /* For e2label emulation */ 1960 printf("%.*s\n", (int) sizeof(sb->s_volume_name), 1961 sb->s_volume_name); 1962 remove_error_table(&et_ext2_error_table); 1963 goto closefs; 1964 } 1965 1966 retval = ext2fs_check_if_mounted(device_name, &mount_flags); 1967 if (retval) { 1968 com_err("ext2fs_check_if_mount", retval, 1969 _("while determining whether %s is mounted."), 1970 device_name); 1971 rc = 1; 1972 goto closefs; 1973 } 1974 /* Normally we only need to write out the superblock */ 1975 fs->flags |= EXT2_FLAG_SUPER_ONLY; 1976 1977 if (c_flag) { 1978 sb->s_max_mnt_count = max_mount_count; 1979 ext2fs_mark_super_dirty(fs); 1980 printf(_("Setting maximal mount count to %d\n"), 1981 max_mount_count); 1982 } 1983 if (C_flag) { 1984 sb->s_mnt_count = mount_count; 1985 ext2fs_mark_super_dirty(fs); 1986 printf(_("Setting current mount count to %d\n"), mount_count); 1987 } 1988 if (e_flag) { 1989 sb->s_errors = errors; 1990 ext2fs_mark_super_dirty(fs); 1991 printf(_("Setting error behavior to %d\n"), errors); 1992 } 1993 if (g_flag) { 1994 sb->s_def_resgid = resgid; 1995 ext2fs_mark_super_dirty(fs); 1996 printf(_("Setting reserved blocks gid to %lu\n"), resgid); 1997 } 1998 if (i_flag) { 1999 if (interval >= (1ULL << 32)) { 2000 com_err(program_name, 0, 2001 _("interval between checks is too big (%lu)"), 2002 interval); 2003 rc = 1; 2004 goto closefs; 2005 } 2006 sb->s_checkinterval = interval; 2007 ext2fs_mark_super_dirty(fs); 2008 printf(_("Setting interval between checks to %lu seconds\n"), 2009 interval); 2010 } 2011 if (m_flag) { 2012 ext2fs_r_blocks_count_set(sb, reserved_ratio * 2013 ext2fs_blocks_count(sb) / 100.0); 2014 ext2fs_mark_super_dirty(fs); 2015 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"), 2016 reserved_ratio, ext2fs_r_blocks_count(sb)); 2017 } 2018 if (r_flag) { 2019 if (reserved_blocks > ext2fs_blocks_count(sb)/2) { 2020 com_err(program_name, 0, 2021 _("reserved blocks count is too big (%llu)"), 2022 reserved_blocks); 2023 rc = 1; 2024 goto closefs; 2025 } 2026 ext2fs_r_blocks_count_set(sb, reserved_blocks); 2027 ext2fs_mark_super_dirty(fs); 2028 printf(_("Setting reserved blocks count to %llu\n"), 2029 reserved_blocks); 2030 } 2031 if (s_flag == 1) { 2032 if (sb->s_feature_ro_compat & 2033 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) 2034 fputs(_("\nThe filesystem already has sparse " 2035 "superblocks.\n"), stderr); 2036 else { 2037 sb->s_feature_ro_compat |= 2038 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 2039 sb->s_state &= ~EXT2_VALID_FS; 2040 ext2fs_mark_super_dirty(fs); 2041 printf(_("\nSparse superblock flag set. %s"), 2042 _(please_fsck)); 2043 } 2044 } 2045 if (s_flag == 0) { 2046 fputs(_("\nClearing the sparse superflag not supported.\n"), 2047 stderr); 2048 rc = 1; 2049 goto closefs; 2050 } 2051 if (T_flag) { 2052 sb->s_lastcheck = last_check_time; 2053 ext2fs_mark_super_dirty(fs); 2054 printf(_("Setting time filesystem last checked to %s\n"), 2055 ctime(&last_check_time)); 2056 } 2057 if (u_flag) { 2058 sb->s_def_resuid = resuid; 2059 ext2fs_mark_super_dirty(fs); 2060 printf(_("Setting reserved blocks uid to %lu\n"), resuid); 2061 } 2062 if (L_flag) { 2063 if (strlen(new_label) > sizeof(sb->s_volume_name)) 2064 fputs(_("Warning: label too long, truncating.\n"), 2065 stderr); 2066 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name)); 2067 strncpy(sb->s_volume_name, new_label, 2068 sizeof(sb->s_volume_name)); 2069 ext2fs_mark_super_dirty(fs); 2070 } 2071 if (M_flag) { 2072 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted)); 2073 strncpy(sb->s_last_mounted, new_last_mounted, 2074 sizeof(sb->s_last_mounted)); 2075 ext2fs_mark_super_dirty(fs); 2076 } 2077 if (mntopts_cmd) { 2078 rc = update_mntopts(fs, mntopts_cmd); 2079 if (rc) 2080 goto closefs; 2081 } 2082 if (features_cmd) { 2083 rc = update_feature_set(fs, features_cmd); 2084 if (rc) 2085 goto closefs; 2086 } 2087 if (extended_cmd) { 2088 rc = parse_extended_opts(fs, extended_cmd); 2089 if (rc) 2090 goto closefs; 2091 if (clear_mmp && !f_flag) { 2092 fputs(_("Error in using clear_mmp. " 2093 "It must be used with -f\n"), 2094 stderr); 2095 goto closefs; 2096 } 2097 } 2098 if (clear_mmp) { 2099 rc = ext2fs_mmp_clear(fs); 2100 goto closefs; 2101 } 2102 if (journal_size || journal_device) { 2103 rc = add_journal(fs); 2104 if (rc) 2105 goto closefs; 2106 } 2107 2108 if (Q_flag) { 2109 if (mount_flags & EXT2_MF_MOUNTED) { 2110 fputs(_("The quota feature may only be changed when " 2111 "the filesystem is unmounted.\n"), stderr); 2112 rc = 1; 2113 goto closefs; 2114 } 2115 handle_quota_options(fs); 2116 } 2117 2118 if (U_flag) { 2119 int set_csum = 0; 2120 dgrp_t i; 2121 2122 if (sb->s_feature_ro_compat & 2123 EXT4_FEATURE_RO_COMPAT_GDT_CSUM) { 2124 /* 2125 * Determine if the block group checksums are 2126 * correct so we know whether or not to set 2127 * them later on. 2128 */ 2129 for (i = 0; i < fs->group_desc_count; i++) 2130 if (!ext2fs_group_desc_csum_verify(fs, i)) 2131 break; 2132 if (i >= fs->group_desc_count) 2133 set_csum = 1; 2134 } 2135 if ((strcasecmp(new_UUID, "null") == 0) || 2136 (strcasecmp(new_UUID, "clear") == 0)) { 2137 uuid_clear(sb->s_uuid); 2138 } else if (strcasecmp(new_UUID, "time") == 0) { 2139 uuid_generate_time(sb->s_uuid); 2140 } else if (strcasecmp(new_UUID, "random") == 0) { 2141 uuid_generate(sb->s_uuid); 2142 } else if (uuid_parse(new_UUID, sb->s_uuid)) { 2143 com_err(program_name, 0, _("Invalid UUID format\n")); 2144 rc = 1; 2145 goto closefs; 2146 } 2147 if (set_csum) { 2148 for (i = 0; i < fs->group_desc_count; i++) 2149 ext2fs_group_desc_csum_set(fs, i); 2150 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 2151 } 2152 ext2fs_mark_super_dirty(fs); 2153 } 2154 if (I_flag) { 2155 if (mount_flags & EXT2_MF_MOUNTED) { 2156 fputs(_("The inode size may only be " 2157 "changed when the filesystem is " 2158 "unmounted.\n"), stderr); 2159 rc = 1; 2160 goto closefs; 2161 } 2162 if (fs->super->s_feature_incompat & 2163 EXT4_FEATURE_INCOMPAT_FLEX_BG) { 2164 fputs(_("Changing the inode size not supported for " 2165 "filesystems with the flex_bg\n" 2166 "feature enabled.\n"), 2167 stderr); 2168 rc = 1; 2169 goto closefs; 2170 } 2171 /* 2172 * We want to update group descriptor also 2173 * with the new free inode count 2174 */ 2175 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 2176 if (resize_inode(fs, new_inode_size) == 0) { 2177 printf(_("Setting inode size %lu\n"), 2178 new_inode_size); 2179 } else { 2180 printf(_("Failed to change inode size\n")); 2181 rc = 1; 2182 goto closefs; 2183 } 2184 } 2185 2186 if (l_flag) 2187 list_super(sb); 2188 if (stride_set) { 2189 sb->s_raid_stride = stride; 2190 ext2fs_mark_super_dirty(fs); 2191 printf(_("Setting stride size to %d\n"), stride); 2192 } 2193 if (stripe_width_set) { 2194 sb->s_raid_stripe_width = stripe_width; 2195 ext2fs_mark_super_dirty(fs); 2196 printf(_("Setting stripe width to %d\n"), stripe_width); 2197 } 2198 if (ext_mount_opts) { 2199 strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts, 2200 sizeof(fs->super->s_mount_opts)); 2201 fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0; 2202 ext2fs_mark_super_dirty(fs); 2203 printf(_("Setting extended default mount options to '%s'\n"), 2204 ext_mount_opts); 2205 free(ext_mount_opts); 2206 } 2207 free(device_name); 2208 remove_error_table(&et_ext2_error_table); 2209 2210closefs: 2211 if (rc) { 2212 ext2fs_mmp_stop(fs); 2213 exit(1); 2214 } 2215 2216 return (ext2fs_close(fs) ? 1 : 0); 2217} 2218