tune2fs.c revision 45ff69ffeb700012a7c052f5e45882557a40be7e
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#ifdef CONFIG_QUOTA 125 "\t[-Q quota_options]\n" 126#endif 127 "\t[-E extended-option[,...]] [-T last_check_time] " 128 "[-U UUID]\n\t[ -I new_inode_size ] device\n"), program_name); 129 exit(1); 130} 131 132static __u32 ok_features[3] = { 133 /* Compat */ 134 EXT3_FEATURE_COMPAT_HAS_JOURNAL | 135 EXT2_FEATURE_COMPAT_DIR_INDEX, 136 /* Incompat */ 137 EXT2_FEATURE_INCOMPAT_FILETYPE | 138 EXT3_FEATURE_INCOMPAT_EXTENTS | 139 EXT4_FEATURE_INCOMPAT_FLEX_BG | 140 EXT4_FEATURE_INCOMPAT_MMP, 141 /* R/O compat */ 142 EXT2_FEATURE_RO_COMPAT_LARGE_FILE | 143 EXT4_FEATURE_RO_COMPAT_HUGE_FILE| 144 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 145 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE| 146 EXT4_FEATURE_RO_COMPAT_GDT_CSUM | 147#ifdef CONFIG_QUOTA 148 EXT4_FEATURE_RO_COMPAT_QUOTA | 149#endif 150 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 151}; 152 153static __u32 clear_ok_features[3] = { 154 /* Compat */ 155 EXT3_FEATURE_COMPAT_HAS_JOURNAL | 156 EXT2_FEATURE_COMPAT_RESIZE_INODE | 157 EXT2_FEATURE_COMPAT_DIR_INDEX, 158 /* Incompat */ 159 EXT2_FEATURE_INCOMPAT_FILETYPE | 160 EXT4_FEATURE_INCOMPAT_FLEX_BG | 161 EXT4_FEATURE_INCOMPAT_MMP, 162 /* R/O compat */ 163 EXT2_FEATURE_RO_COMPAT_LARGE_FILE | 164 EXT4_FEATURE_RO_COMPAT_HUGE_FILE| 165 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 166 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE| 167#ifdef CONFIG_QUOTA 168 EXT4_FEATURE_RO_COMPAT_QUOTA | 169#endif 170 EXT4_FEATURE_RO_COMPAT_GDT_CSUM 171}; 172 173/* 174 * Remove an external journal from the filesystem 175 */ 176static int remove_journal_device(ext2_filsys fs) 177{ 178 char *journal_path; 179 ext2_filsys jfs; 180 char buf[1024]; 181 journal_superblock_t *jsb; 182 int i, nr_users; 183 errcode_t retval; 184 int commit_remove_journal = 0; 185 io_manager io_ptr; 186 187 if (f_flag) 188 commit_remove_journal = 1; /* force removal even if error */ 189 190 uuid_unparse(fs->super->s_journal_uuid, buf); 191 journal_path = blkid_get_devname(NULL, "UUID", buf); 192 193 if (!journal_path) { 194 journal_path = 195 ext2fs_find_block_device(fs->super->s_journal_dev); 196 if (!journal_path) 197 goto no_valid_journal; 198 } 199 200#ifdef CONFIG_TESTIO_DEBUG 201 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 202 io_ptr = test_io_manager; 203 test_io_backing_manager = unix_io_manager; 204 } else 205#endif 206 io_ptr = unix_io_manager; 207 retval = ext2fs_open(journal_path, EXT2_FLAG_RW| 208 EXT2_FLAG_JOURNAL_DEV_OK, 0, 209 fs->blocksize, io_ptr, &jfs); 210 if (retval) { 211 com_err(program_name, retval, "%s", 212 _("while trying to open external journal")); 213 goto no_valid_journal; 214 } 215 if (!(jfs->super->s_feature_incompat & 216 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) { 217 fprintf(stderr, _("%s is not a journal device.\n"), 218 journal_path); 219 goto no_valid_journal; 220 } 221 222 /* Get the journal superblock */ 223 if ((retval = io_channel_read_blk64(jfs->io, 1, -1024, buf))) { 224 com_err(program_name, retval, "%s", 225 _("while reading journal superblock")); 226 goto no_valid_journal; 227 } 228 229 jsb = (journal_superblock_t *) buf; 230 if ((jsb->s_header.h_magic != (unsigned)ntohl(JFS_MAGIC_NUMBER)) || 231 (jsb->s_header.h_blocktype != (unsigned)ntohl(JFS_SUPERBLOCK_V2))) { 232 fputs(_("Journal superblock not found!\n"), stderr); 233 goto no_valid_journal; 234 } 235 236 /* Find the filesystem UUID */ 237 nr_users = ntohl(jsb->s_nr_users); 238 for (i = 0; i < nr_users; i++) { 239 if (memcmp(fs->super->s_uuid, &jsb->s_users[i * 16], 16) == 0) 240 break; 241 } 242 if (i >= nr_users) { 243 fputs(_("Filesystem's UUID not found on journal device.\n"), 244 stderr); 245 commit_remove_journal = 1; 246 goto no_valid_journal; 247 } 248 nr_users--; 249 for (i = 0; i < nr_users; i++) 250 memcpy(&jsb->s_users[i * 16], &jsb->s_users[(i + 1) * 16], 16); 251 jsb->s_nr_users = htonl(nr_users); 252 253 /* Write back the journal superblock */ 254 if ((retval = io_channel_write_blk64(jfs->io, 1, -1024, buf))) { 255 com_err(program_name, retval, 256 "while writing journal superblock."); 257 goto no_valid_journal; 258 } 259 260 commit_remove_journal = 1; 261 262no_valid_journal: 263 if (commit_remove_journal == 0) { 264 fputs(_("Cannot locate journal device. It was NOT removed\n" 265 "Use -f option to remove missing journal device.\n"), 266 stderr); 267 return 1; 268 } 269 fs->super->s_journal_dev = 0; 270 uuid_clear(fs->super->s_journal_uuid); 271 ext2fs_mark_super_dirty(fs); 272 fputs(_("Journal removed\n"), stdout); 273 free(journal_path); 274 275 return 0; 276} 277 278/* Helper function for remove_journal_inode */ 279static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr, 280 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 281 blk64_t ref_block EXT2FS_ATTR((unused)), 282 int ref_offset EXT2FS_ATTR((unused)), 283 void *private EXT2FS_ATTR((unused))) 284{ 285 blk64_t block; 286 int group; 287 288 block = *blocknr; 289 ext2fs_unmark_block_bitmap2(fs->block_map, block); 290 group = ext2fs_group_of_blk2(fs, block); 291 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1); 292 ext2fs_group_desc_csum_set(fs, group); 293 ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs)); 294 return 0; 295} 296 297/* 298 * Remove the journal inode from the filesystem 299 */ 300static errcode_t remove_journal_inode(ext2_filsys fs) 301{ 302 struct ext2_inode inode; 303 errcode_t retval; 304 ino_t ino = fs->super->s_journal_inum; 305 306 retval = ext2fs_read_inode(fs, ino, &inode); 307 if (retval) { 308 com_err(program_name, retval, "%s", 309 _("while reading journal inode")); 310 return retval; 311 } 312 if (ino == EXT2_JOURNAL_INO) { 313 retval = ext2fs_read_bitmaps(fs); 314 if (retval) { 315 com_err(program_name, retval, "%s", 316 _("while reading bitmaps")); 317 return retval; 318 } 319 retval = ext2fs_block_iterate3(fs, ino, 320 BLOCK_FLAG_READ_ONLY, NULL, 321 release_blocks_proc, NULL); 322 if (retval) { 323 com_err(program_name, retval, "%s", 324 _("while clearing journal inode")); 325 return retval; 326 } 327 memset(&inode, 0, sizeof(inode)); 328 ext2fs_mark_bb_dirty(fs); 329 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 330 } else 331 inode.i_flags &= ~EXT2_IMMUTABLE_FL; 332 retval = ext2fs_write_inode(fs, ino, &inode); 333 if (retval) { 334 com_err(program_name, retval, "%s", 335 _("while writing journal inode")); 336 return retval; 337 } 338 fs->super->s_journal_inum = 0; 339 ext2fs_mark_super_dirty(fs); 340 341 return 0; 342} 343 344/* 345 * Update the default mount options 346 */ 347static int update_mntopts(ext2_filsys fs, char *mntopts) 348{ 349 struct ext2_super_block *sb = fs->super; 350 351 if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) { 352 fprintf(stderr, _("Invalid mount option set: %s\n"), 353 mntopts); 354 return 1; 355 } 356 ext2fs_mark_super_dirty(fs); 357 358 return 0; 359} 360 361static int check_fsck_needed(ext2_filsys fs) 362{ 363 if (fs->super->s_state & EXT2_VALID_FS) 364 return 0; 365 printf("\n%s\n", _(please_fsck)); 366 if (mount_flags & EXT2_MF_READONLY) 367 printf(_("(and reboot afterwards!)\n")); 368 return 1; 369} 370 371static void request_fsck_afterwards(ext2_filsys fs) 372{ 373 static int requested = 0; 374 375 if (requested++) 376 return; 377 fs->super->s_state &= ~EXT2_VALID_FS; 378 printf("\n%s\n", _(please_fsck)); 379 if (mount_flags & EXT2_MF_READONLY) 380 printf("%s", _("(and reboot afterwards!)\n")); 381} 382 383/* 384 * Update the feature set as provided by the user. 385 */ 386static int update_feature_set(ext2_filsys fs, char *features) 387{ 388 struct ext2_super_block *sb = fs->super; 389 struct ext2_group_desc *gd; 390 __u32 old_features[3]; 391 dgrp_t i; 392 int type_err; 393 unsigned int mask_err; 394 395#define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \ 396 ((&sb->s_feature_compat)[(type)] & (mask))) 397#define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \ 398 !((&sb->s_feature_compat)[(type)] & (mask))) 399#define FEATURE_CHANGED(type, mask) ((mask) & \ 400 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)])) 401 402 old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat; 403 old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat; 404 old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat; 405 406 if (e2p_edit_feature2(features, &sb->s_feature_compat, 407 ok_features, clear_ok_features, 408 &type_err, &mask_err)) { 409 if (!mask_err) 410 fprintf(stderr, 411 _("Invalid filesystem option set: %s\n"), 412 features); 413 else if (type_err & E2P_FEATURE_NEGATE_FLAG) 414 fprintf(stderr, _("Clearing filesystem feature '%s' " 415 "not supported.\n"), 416 e2p_feature2string(type_err & 417 E2P_FEATURE_TYPE_MASK, 418 mask_err)); 419 else 420 fprintf(stderr, _("Setting filesystem feature '%s' " 421 "not supported.\n"), 422 e2p_feature2string(type_err, mask_err)); 423 return 1; 424 } 425 426 if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 427 if ((mount_flags & EXT2_MF_MOUNTED) && 428 !(mount_flags & EXT2_MF_READONLY)) { 429 fputs(_("The has_journal feature may only be " 430 "cleared when the filesystem is\n" 431 "unmounted or mounted " 432 "read-only.\n"), stderr); 433 return 1; 434 } 435 if (sb->s_feature_incompat & 436 EXT3_FEATURE_INCOMPAT_RECOVER) { 437 fputs(_("The needs_recovery flag is set. " 438 "Please run e2fsck before clearing\n" 439 "the has_journal flag.\n"), stderr); 440 return 1; 441 } 442 if (sb->s_journal_inum) { 443 if (remove_journal_inode(fs)) 444 return 1; 445 } 446 if (sb->s_journal_dev) { 447 if (remove_journal_device(fs)) 448 return 1; 449 } 450 } 451 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) { 452 int error; 453 454 if ((mount_flags & EXT2_MF_MOUNTED) || 455 (mount_flags & EXT2_MF_READONLY)) { 456 fputs(_("The multiple mount protection feature can't\n" 457 "be set if the filesystem is mounted or\n" 458 "read-only.\n"), stderr); 459 return 1; 460 } 461 462 error = ext2fs_mmp_init(fs); 463 if (error) { 464 fputs(_("\nError while enabling multiple mount " 465 "protection feature."), stderr); 466 return 1; 467 } 468 469 /* 470 * We want to update group desc with the new free blocks count 471 */ 472 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 473 474 printf(_("Multiple mount protection has been enabled " 475 "with update interval %ds.\n"), 476 sb->s_mmp_update_interval); 477 } 478 479 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) { 480 int error; 481 482 if (mount_flags & EXT2_MF_READONLY) { 483 fputs(_("The multiple mount protection feature cannot\n" 484 "be disabled if the filesystem is readonly.\n"), 485 stderr); 486 return 1; 487 } 488 489 error = ext2fs_read_bitmaps(fs); 490 if (error) { 491 fputs(_("Error while reading bitmaps\n"), stderr); 492 return 1; 493 } 494 495 error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL); 496 if (error) { 497 struct mmp_struct *mmp_cmp = fs->mmp_cmp; 498 499 if (error == EXT2_ET_MMP_MAGIC_INVALID) 500 printf(_("Magic number in MMP block does not " 501 "match. expected: %x, actual: %x\n"), 502 EXT4_MMP_MAGIC, mmp_cmp->mmp_magic); 503 else 504 com_err(program_name, error, "%s", 505 _("while reading MMP block.")); 506 goto mmp_error; 507 } 508 509 /* We need to force out the group descriptors as well */ 510 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 511 ext2fs_block_alloc_stats2(fs, sb->s_mmp_block, -1); 512mmp_error: 513 sb->s_mmp_block = 0; 514 sb->s_mmp_update_interval = 0; 515 } 516 517 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 518 /* 519 * If adding a journal flag, let the create journal 520 * code below handle setting the flag and creating the 521 * journal. We supply a default size if necessary. 522 */ 523 if (!journal_size) 524 journal_size = -1; 525 sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; 526 } 527 528 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) { 529 if (!sb->s_def_hash_version) 530 sb->s_def_hash_version = EXT2_HASH_HALF_MD4; 531 if (uuid_is_null((unsigned char *) sb->s_hash_seed)) 532 uuid_generate((unsigned char *) sb->s_hash_seed); 533 } 534 535 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) { 536 if (ext2fs_check_desc(fs)) { 537 fputs(_("Clearing the flex_bg flag would " 538 "cause the the filesystem to be\n" 539 "inconsistent.\n"), stderr); 540 return 1; 541 } 542 } 543 544 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 545 EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) { 546 if ((mount_flags & EXT2_MF_MOUNTED) && 547 !(mount_flags & EXT2_MF_READONLY)) { 548 fputs(_("The huge_file feature may only be " 549 "cleared when the filesystem is\n" 550 "unmounted or mounted " 551 "read-only.\n"), stderr); 552 return 1; 553 } 554 } 555 556 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, 557 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) { 558 for (i = 0; i < fs->group_desc_count; i++) { 559 gd = ext2fs_group_desc(fs, fs->group_desc, i); 560 gd->bg_itable_unused = 0; 561 gd->bg_flags = EXT2_BG_INODE_ZEROED; 562 ext2fs_group_desc_csum_set(fs, i); 563 } 564 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 565 } 566 567 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 568 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) { 569 for (i = 0; i < fs->group_desc_count; i++) { 570 gd = ext2fs_group_desc(fs, fs->group_desc, i); 571 if ((gd->bg_flags & EXT2_BG_INODE_ZEROED) == 0) { 572 /* 573 * XXX what we really should do is zap 574 * uninitialized inode tables instead. 575 */ 576 request_fsck_afterwards(fs); 577 break; 578 } 579 gd->bg_itable_unused = 0; 580 gd->bg_flags = 0; 581 gd->bg_checksum = 0; 582 } 583 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 584 } 585 586 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, 587 EXT4_FEATURE_RO_COMPAT_QUOTA)) { 588 /* 589 * Set the Q_flag here and handle the quota options in the code 590 * below. 591 */ 592 if (!Q_flag) { 593 Q_flag = 1; 594 /* Enable both user quota and group quota by default */ 595 usrquota = QOPT_ENABLE; 596 grpquota = QOPT_ENABLE; 597 } 598 sb->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA; 599 } 600 601 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 602 EXT4_FEATURE_RO_COMPAT_QUOTA)) { 603 /* 604 * Set the Q_flag here and handle the quota options in the code 605 * below. 606 */ 607 if (Q_flag) 608 fputs(_("\nWarning: '^quota' option overrides '-Q'" 609 "arguments.\n"), stderr); 610 Q_flag = 1; 611 /* Disable both user quota and group quota by default */ 612 usrquota = QOPT_DISABLE; 613 grpquota = QOPT_DISABLE; 614 } 615 616 if (sb->s_rev_level == EXT2_GOOD_OLD_REV && 617 (sb->s_feature_compat || sb->s_feature_ro_compat || 618 sb->s_feature_incompat)) 619 ext2fs_update_dynamic_rev(fs); 620 621 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT, 622 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) || 623 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 624 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) || 625 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT, 626 EXT2_FEATURE_INCOMPAT_FILETYPE) || 627 FEATURE_CHANGED(E2P_FEATURE_COMPAT, 628 EXT2_FEATURE_COMPAT_RESIZE_INODE) || 629 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 630 EXT2_FEATURE_RO_COMPAT_LARGE_FILE)) 631 request_fsck_afterwards(fs); 632 633 if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) || 634 (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) || 635 (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat)) 636 ext2fs_mark_super_dirty(fs); 637 638 return 0; 639} 640 641/* 642 * Add a journal to the filesystem. 643 */ 644static int add_journal(ext2_filsys fs) 645{ 646 unsigned long journal_blocks; 647 errcode_t retval; 648 ext2_filsys jfs; 649 io_manager io_ptr; 650 651 if (fs->super->s_feature_compat & 652 EXT3_FEATURE_COMPAT_HAS_JOURNAL) { 653 fputs(_("The filesystem already has a journal.\n"), stderr); 654 goto err; 655 } 656 if (journal_device) { 657 check_plausibility(journal_device); 658 check_mount(journal_device, 0, _("journal")); 659#ifdef CONFIG_TESTIO_DEBUG 660 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 661 io_ptr = test_io_manager; 662 test_io_backing_manager = unix_io_manager; 663 } else 664#endif 665 io_ptr = unix_io_manager; 666 retval = ext2fs_open(journal_device, EXT2_FLAG_RW| 667 EXT2_FLAG_JOURNAL_DEV_OK, 0, 668 fs->blocksize, io_ptr, &jfs); 669 if (retval) { 670 com_err(program_name, retval, 671 _("\n\twhile trying to open journal on %s\n"), 672 journal_device); 673 goto err; 674 } 675 printf(_("Creating journal on device %s: "), 676 journal_device); 677 fflush(stdout); 678 679 retval = ext2fs_add_journal_device(fs, jfs); 680 ext2fs_close(jfs); 681 if (retval) { 682 com_err(program_name, retval, 683 _("while adding filesystem to journal on %s"), 684 journal_device); 685 goto err; 686 } 687 fputs(_("done\n"), stdout); 688 } else if (journal_size) { 689 fputs(_("Creating journal inode: "), stdout); 690 fflush(stdout); 691 journal_blocks = figure_journal_size(journal_size, fs); 692 693 retval = ext2fs_add_journal_inode(fs, journal_blocks, 694 journal_flags); 695 if (retval) { 696 fprintf(stderr, "\n"); 697 com_err(program_name, retval, "%s", 698 _("\n\twhile trying to create journal file")); 699 return retval; 700 } else 701 fputs(_("done\n"), stdout); 702 /* 703 * If the filesystem wasn't mounted, we need to force 704 * the block group descriptors out. 705 */ 706 if ((mount_flags & EXT2_MF_MOUNTED) == 0) 707 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 708 } 709 print_check_message(fs->super->s_max_mnt_count, 710 fs->super->s_checkinterval); 711 return 0; 712 713err: 714 free(journal_device); 715 return 1; 716} 717 718static void handle_quota_options(ext2_filsys fs) 719{ 720 quota_ctx_t qctx; 721 ext2_ino_t qf_ino; 722 723 if (!usrquota && !grpquota) 724 /* Nothing to do. */ 725 return; 726 727 quota_init_context(&qctx, fs, -1); 728 729 if (usrquota == QOPT_ENABLE || grpquota == QOPT_ENABLE) 730 quota_compute_usage(qctx); 731 732 if (usrquota == QOPT_ENABLE && !fs->super->s_usr_quota_inum) { 733 if ((qf_ino = quota_file_exists(fs, USRQUOTA, 734 QFMT_VFS_V1)) > 0) 735 quota_update_limits(qctx, qf_ino, USRQUOTA); 736 quota_write_inode(qctx, USRQUOTA); 737 } else if (usrquota == QOPT_DISABLE) { 738 quota_remove_inode(fs, USRQUOTA); 739 } 740 741 if (grpquota == QOPT_ENABLE && !fs->super->s_grp_quota_inum) { 742 if ((qf_ino = quota_file_exists(fs, GRPQUOTA, 743 QFMT_VFS_V1)) > 0) 744 quota_update_limits(qctx, qf_ino, GRPQUOTA); 745 quota_write_inode(qctx, GRPQUOTA); 746 } else if (grpquota == QOPT_DISABLE) { 747 quota_remove_inode(fs, GRPQUOTA); 748 } 749 750 quota_release_context(&qctx); 751 752 if ((usrquota == QOPT_ENABLE) || (grpquota == QOPT_ENABLE)) { 753 fprintf(stderr, "%s", _("\nWarning: the quota feature is still " 754 "under development\n" 755 "See https://ext4.wiki.kernel.org/" 756 "index.php/Quota for more information\n\n")); 757 fs->super->s_feature_ro_compat |= EXT4_FEATURE_RO_COMPAT_QUOTA; 758 ext2fs_mark_super_dirty(fs); 759 } else if (!fs->super->s_usr_quota_inum && 760 !fs->super->s_grp_quota_inum) { 761 fs->super->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA; 762 ext2fs_mark_super_dirty(fs); 763 } 764 765 return; 766} 767 768static void parse_quota_opts(const char *opts) 769{ 770 char *buf, *token, *next, *p; 771 int len; 772 773 len = strlen(opts); 774 buf = malloc(len+1); 775 if (!buf) { 776 fputs(_("Couldn't allocate memory to parse quota " 777 "options!\n"), stderr); 778 exit(1); 779 } 780 strcpy(buf, opts); 781 for (token = buf; token && *token; token = next) { 782 p = strchr(token, ','); 783 next = 0; 784 if (p) { 785 *p = 0; 786 next = p+1; 787 } 788 789 if (strcmp(token, "usrquota") == 0) { 790 usrquota = QOPT_ENABLE; 791 } else if (strcmp(token, "^usrquota") == 0) { 792 usrquota = QOPT_DISABLE; 793 } else if (strcmp(token, "grpquota") == 0) { 794 grpquota = QOPT_ENABLE; 795 } else if (strcmp(token, "^grpquota") == 0) { 796 grpquota = QOPT_DISABLE; 797 } else { 798 fputs(_("\nBad quota options specified.\n\n" 799 "Following valid quota options are available " 800 "(pass by separating with comma):\n" 801 "\t[^]usrquota\n" 802 "\t[^]grpquota\n" 803 "\n\n"), stderr); 804 free(buf); 805 exit(1); 806 } 807 } 808 free(buf); 809} 810 811 812 813static void parse_e2label_options(int argc, char ** argv) 814{ 815 if ((argc < 2) || (argc > 3)) { 816 fputs(_("Usage: e2label device [newlabel]\n"), stderr); 817 exit(1); 818 } 819 io_options = strchr(argv[1], '?'); 820 if (io_options) 821 *io_options++ = 0; 822 device_name = blkid_get_devname(NULL, argv[1], NULL); 823 if (!device_name) { 824 com_err("e2label", 0, _("Unable to resolve '%s'"), 825 argv[1]); 826 exit(1); 827 } 828 open_flag = EXT2_FLAG_JOURNAL_DEV_OK; 829 if (argc == 3) { 830 open_flag |= EXT2_FLAG_RW; 831 L_flag = 1; 832 new_label = argv[2]; 833 } else 834 print_label++; 835} 836 837static time_t parse_time(char *str) 838{ 839 struct tm ts; 840 841 if (strcmp(str, "now") == 0) { 842 return (time(0)); 843 } 844 memset(&ts, 0, sizeof(ts)); 845#ifdef HAVE_STRPTIME 846 strptime(str, "%Y%m%d%H%M%S", &ts); 847#else 848 sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon, 849 &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec); 850 ts.tm_year -= 1900; 851 ts.tm_mon -= 1; 852 if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 || 853 ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 || 854 ts.tm_min > 59 || ts.tm_sec > 61) 855 ts.tm_mday = 0; 856#endif 857 if (ts.tm_mday == 0) { 858 com_err(program_name, 0, 859 _("Couldn't parse date/time specifier: %s"), 860 str); 861 usage(); 862 } 863 ts.tm_isdst = -1; 864 return (mktime(&ts)); 865} 866 867static void parse_tune2fs_options(int argc, char **argv) 868{ 869 int c; 870 char *tmp; 871 struct group *gr; 872 struct passwd *pw; 873 char optstring[100] = "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:"; 874 875#ifdef CONFIG_QUOTA 876 strcat(optstring, "Q:"); 877#endif 878 open_flag = 0; 879 880 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE); 881 while ((c = getopt(argc, argv, optstring)) != EOF) 882 switch (c) { 883 case 'c': 884 max_mount_count = strtol(optarg, &tmp, 0); 885 if (*tmp || max_mount_count > 16000) { 886 com_err(program_name, 0, 887 _("bad mounts count - %s"), 888 optarg); 889 usage(); 890 } 891 if (max_mount_count == 0) 892 max_mount_count = -1; 893 c_flag = 1; 894 open_flag = EXT2_FLAG_RW; 895 break; 896 case 'C': 897 mount_count = strtoul(optarg, &tmp, 0); 898 if (*tmp || mount_count > 16000) { 899 com_err(program_name, 0, 900 _("bad mounts count - %s"), 901 optarg); 902 usage(); 903 } 904 C_flag = 1; 905 open_flag = EXT2_FLAG_RW; 906 break; 907 case 'e': 908 if (strcmp(optarg, "continue") == 0) 909 errors = EXT2_ERRORS_CONTINUE; 910 else if (strcmp(optarg, "remount-ro") == 0) 911 errors = EXT2_ERRORS_RO; 912 else if (strcmp(optarg, "panic") == 0) 913 errors = EXT2_ERRORS_PANIC; 914 else { 915 com_err(program_name, 0, 916 _("bad error behavior - %s"), 917 optarg); 918 usage(); 919 } 920 e_flag = 1; 921 open_flag = EXT2_FLAG_RW; 922 break; 923 case 'E': 924 extended_cmd = optarg; 925 open_flag |= EXT2_FLAG_RW; 926 break; 927 case 'f': /* Force */ 928 f_flag = 1; 929 break; 930 case 'g': 931 resgid = strtoul(optarg, &tmp, 0); 932 if (*tmp) { 933 gr = getgrnam(optarg); 934 if (gr == NULL) 935 tmp = optarg; 936 else { 937 resgid = gr->gr_gid; 938 *tmp = 0; 939 } 940 } 941 if (*tmp) { 942 com_err(program_name, 0, 943 _("bad gid/group name - %s"), 944 optarg); 945 usage(); 946 } 947 g_flag = 1; 948 open_flag = EXT2_FLAG_RW; 949 break; 950 case 'i': 951 interval = strtoul(optarg, &tmp, 0); 952 switch (*tmp) { 953 case 's': 954 tmp++; 955 break; 956 case '\0': 957 case 'd': 958 case 'D': /* days */ 959 interval *= 86400; 960 if (*tmp != '\0') 961 tmp++; 962 break; 963 case 'm': 964 case 'M': /* months! */ 965 interval *= 86400 * 30; 966 tmp++; 967 break; 968 case 'w': 969 case 'W': /* weeks */ 970 interval *= 86400 * 7; 971 tmp++; 972 break; 973 } 974 if (*tmp) { 975 com_err(program_name, 0, 976 _("bad interval - %s"), optarg); 977 usage(); 978 } 979 i_flag = 1; 980 open_flag = EXT2_FLAG_RW; 981 break; 982 case 'j': 983 if (!journal_size) 984 journal_size = -1; 985 open_flag = EXT2_FLAG_RW; 986 break; 987 case 'J': 988 parse_journal_opts(optarg); 989 open_flag = EXT2_FLAG_RW; 990 break; 991 case 'l': 992 l_flag = 1; 993 break; 994 case 'L': 995 new_label = optarg; 996 L_flag = 1; 997 open_flag |= EXT2_FLAG_RW | 998 EXT2_FLAG_JOURNAL_DEV_OK; 999 break; 1000 case 'm': 1001 reserved_ratio = strtod(optarg, &tmp); 1002 if (*tmp || reserved_ratio > 50 || 1003 reserved_ratio < 0) { 1004 com_err(program_name, 0, 1005 _("bad reserved block ratio - %s"), 1006 optarg); 1007 usage(); 1008 } 1009 m_flag = 1; 1010 open_flag = EXT2_FLAG_RW; 1011 break; 1012 case 'M': 1013 new_last_mounted = optarg; 1014 M_flag = 1; 1015 open_flag = EXT2_FLAG_RW; 1016 break; 1017 case 'o': 1018 if (mntopts_cmd) { 1019 com_err(program_name, 0, "%s", 1020 _("-o may only be specified once")); 1021 usage(); 1022 } 1023 mntopts_cmd = optarg; 1024 open_flag = EXT2_FLAG_RW; 1025 break; 1026 case 'O': 1027 if (features_cmd) { 1028 com_err(program_name, 0, "%s", 1029 _("-O may only be specified once")); 1030 usage(); 1031 } 1032 features_cmd = optarg; 1033 open_flag = EXT2_FLAG_RW; 1034 break; 1035#ifdef CONFIG_QUOTA 1036 case 'Q': 1037 Q_flag = 1; 1038 parse_quota_opts(optarg); 1039 open_flag = EXT2_FLAG_RW; 1040 break; 1041#endif 1042 case 'r': 1043 reserved_blocks = strtoul(optarg, &tmp, 0); 1044 if (*tmp) { 1045 com_err(program_name, 0, 1046 _("bad reserved blocks count - %s"), 1047 optarg); 1048 usage(); 1049 } 1050 r_flag = 1; 1051 open_flag = EXT2_FLAG_RW; 1052 break; 1053 case 's': /* Deprecated */ 1054 s_flag = atoi(optarg); 1055 open_flag = EXT2_FLAG_RW; 1056 break; 1057 case 'T': 1058 T_flag = 1; 1059 last_check_time = parse_time(optarg); 1060 open_flag = EXT2_FLAG_RW; 1061 break; 1062 case 'u': 1063 resuid = strtoul(optarg, &tmp, 0); 1064 if (*tmp) { 1065 pw = getpwnam(optarg); 1066 if (pw == NULL) 1067 tmp = optarg; 1068 else { 1069 resuid = pw->pw_uid; 1070 *tmp = 0; 1071 } 1072 } 1073 if (*tmp) { 1074 com_err(program_name, 0, 1075 _("bad uid/user name - %s"), 1076 optarg); 1077 usage(); 1078 } 1079 u_flag = 1; 1080 open_flag = EXT2_FLAG_RW; 1081 break; 1082 case 'U': 1083 new_UUID = optarg; 1084 U_flag = 1; 1085 open_flag = EXT2_FLAG_RW | 1086 EXT2_FLAG_JOURNAL_DEV_OK; 1087 break; 1088 case 'I': 1089 new_inode_size = strtoul(optarg, &tmp, 0); 1090 if (*tmp) { 1091 com_err(program_name, 0, 1092 _("bad inode size - %s"), 1093 optarg); 1094 usage(); 1095 } 1096 if (!((new_inode_size & 1097 (new_inode_size - 1)) == 0)) { 1098 com_err(program_name, 0, 1099 _("Inode size must be a " 1100 "power of two- %s"), 1101 optarg); 1102 usage(); 1103 } 1104 open_flag = EXT2_FLAG_RW; 1105 I_flag = 1; 1106 break; 1107 default: 1108 usage(); 1109 } 1110 if (optind < argc - 1 || optind == argc) 1111 usage(); 1112 if (!open_flag && !l_flag) 1113 usage(); 1114 io_options = strchr(argv[optind], '?'); 1115 if (io_options) 1116 *io_options++ = 0; 1117 device_name = blkid_get_devname(NULL, argv[optind], NULL); 1118 if (!device_name) { 1119 com_err(program_name, 0, _("Unable to resolve '%s'"), 1120 argv[optind]); 1121 exit(1); 1122 } 1123} 1124 1125#ifdef CONFIG_BUILD_FINDFS 1126void do_findfs(int argc, char **argv) 1127{ 1128 char *dev; 1129 1130 if ((argc != 2) || 1131 (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) { 1132 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n"); 1133 exit(2); 1134 } 1135 dev = blkid_get_devname(NULL, argv[1], NULL); 1136 if (!dev) { 1137 com_err("findfs", 0, _("Unable to resolve '%s'"), 1138 argv[1]); 1139 exit(1); 1140 } 1141 puts(dev); 1142 exit(0); 1143} 1144#endif 1145 1146static int parse_extended_opts(ext2_filsys fs, const char *opts) 1147{ 1148 char *buf, *token, *next, *p, *arg; 1149 int len, hash_alg; 1150 int r_usage = 0; 1151 1152 len = strlen(opts); 1153 buf = malloc(len+1); 1154 if (!buf) { 1155 fprintf(stderr, "%s", 1156 _("Couldn't allocate memory to parse options!\n")); 1157 return 1; 1158 } 1159 strcpy(buf, opts); 1160 for (token = buf; token && *token; token = next) { 1161 p = strchr(token, ','); 1162 next = 0; 1163 if (p) { 1164 *p = 0; 1165 next = p+1; 1166 } 1167 arg = strchr(token, '='); 1168 if (arg) { 1169 *arg = 0; 1170 arg++; 1171 } 1172 if (strcmp(token, "clear-mmp") == 0 || 1173 strcmp(token, "clear_mmp") == 0) { 1174 clear_mmp = 1; 1175 } else if (strcmp(token, "mmp_update_interval") == 0) { 1176 unsigned long intv; 1177 if (!arg) { 1178 r_usage++; 1179 continue; 1180 } 1181 intv = strtoul(arg, &p, 0); 1182 if (*p) { 1183 fprintf(stderr, 1184 _("Invalid mmp_update_interval: %s\n"), 1185 arg); 1186 r_usage++; 1187 continue; 1188 } 1189 if (intv == 0) { 1190 intv = EXT4_MMP_UPDATE_INTERVAL; 1191 } else if (intv > EXT4_MMP_MAX_UPDATE_INTERVAL) { 1192 fprintf(stderr, 1193 _("mmp_update_interval too big: %lu\n"), 1194 intv); 1195 r_usage++; 1196 continue; 1197 } 1198 printf(P_("Setting multiple mount protection update " 1199 "interval to %lu second\n", 1200 "Setting multiple mount protection update " 1201 "interval to %lu seconds\n", intv), 1202 intv); 1203 fs->super->s_mmp_update_interval = intv; 1204 ext2fs_mark_super_dirty(fs); 1205 } else if (!strcmp(token, "test_fs")) { 1206 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS; 1207 printf("Setting test filesystem flag\n"); 1208 ext2fs_mark_super_dirty(fs); 1209 } else if (!strcmp(token, "^test_fs")) { 1210 fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS; 1211 printf("Clearing test filesystem flag\n"); 1212 ext2fs_mark_super_dirty(fs); 1213 } else if (strcmp(token, "stride") == 0) { 1214 if (!arg) { 1215 r_usage++; 1216 continue; 1217 } 1218 stride = strtoul(arg, &p, 0); 1219 if (*p) { 1220 fprintf(stderr, 1221 _("Invalid RAID stride: %s\n"), 1222 arg); 1223 r_usage++; 1224 continue; 1225 } 1226 stride_set = 1; 1227 } else if (strcmp(token, "stripe-width") == 0 || 1228 strcmp(token, "stripe_width") == 0) { 1229 if (!arg) { 1230 r_usage++; 1231 continue; 1232 } 1233 stripe_width = strtoul(arg, &p, 0); 1234 if (*p) { 1235 fprintf(stderr, 1236 _("Invalid RAID stripe-width: %s\n"), 1237 arg); 1238 r_usage++; 1239 continue; 1240 } 1241 stripe_width_set = 1; 1242 } else if (strcmp(token, "hash_alg") == 0 || 1243 strcmp(token, "hash-alg") == 0) { 1244 if (!arg) { 1245 r_usage++; 1246 continue; 1247 } 1248 hash_alg = e2p_string2hash(arg); 1249 if (hash_alg < 0) { 1250 fprintf(stderr, 1251 _("Invalid hash algorithm: %s\n"), 1252 arg); 1253 r_usage++; 1254 continue; 1255 } 1256 fs->super->s_def_hash_version = hash_alg; 1257 printf(_("Setting default hash algorithm " 1258 "to %s (%d)\n"), 1259 arg, hash_alg); 1260 ext2fs_mark_super_dirty(fs); 1261 } else if (!strcmp(token, "mount_opts")) { 1262 if (!arg) { 1263 r_usage++; 1264 continue; 1265 } 1266 if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) { 1267 fprintf(stderr, 1268 "Extended mount options too long\n"); 1269 continue; 1270 } 1271 ext_mount_opts = strdup(arg); 1272 } else 1273 r_usage++; 1274 } 1275 if (r_usage) { 1276 fprintf(stderr, "%s", _("\nBad options specified.\n\n" 1277 "Extended options are separated by commas, " 1278 "and may take an argument which\n" 1279 "\tis set off by an equals ('=') sign.\n\n" 1280 "Valid extended options are:\n" 1281 "\tclear_mmp\n" 1282 "\thash_alg=<hash algorithm>\n" 1283 "\tmount_opts=<extended default mount options>\n" 1284 "\tstride=<RAID per-disk chunk size in blocks>\n" 1285 "\tstripe_width=<RAID stride*data disks in blocks>\n" 1286 "\ttest_fs\n" 1287 "\t^test_fs\n")); 1288 free(buf); 1289 return 1; 1290 } 1291 free(buf); 1292 1293 return 0; 1294} 1295 1296/* 1297 * Fill in the block bitmap bmap with the information regarding the 1298 * blocks to be moved 1299 */ 1300static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp, 1301 ext2fs_block_bitmap bmap) 1302{ 1303 dgrp_t i; 1304 int retval; 1305 ext2_badblocks_list bb_list = 0; 1306 blk64_t j, needed_blocks = 0; 1307 blk64_t start_blk, end_blk; 1308 1309 retval = ext2fs_read_bb_inode(fs, &bb_list); 1310 if (retval) 1311 return retval; 1312 1313 for (i = 0; i < fs->group_desc_count; i++) { 1314 start_blk = ext2fs_inode_table_loc(fs, i) + 1315 fs->inode_blocks_per_group; 1316 1317 end_blk = ext2fs_inode_table_loc(fs, i) + 1318 new_ino_blks_per_grp; 1319 1320 for (j = start_blk; j < end_blk; j++) { 1321 if (ext2fs_test_block_bitmap2(fs->block_map, j)) { 1322 /* 1323 * IF the block is a bad block we fail 1324 */ 1325 if (ext2fs_badblocks_list_test(bb_list, j)) { 1326 ext2fs_badblocks_list_free(bb_list); 1327 return ENOSPC; 1328 } 1329 1330 ext2fs_mark_block_bitmap2(bmap, j); 1331 } else { 1332 /* 1333 * We are going to use this block for 1334 * inode table. So mark them used. 1335 */ 1336 ext2fs_mark_block_bitmap2(fs->block_map, j); 1337 } 1338 } 1339 needed_blocks += end_blk - start_blk; 1340 } 1341 1342 ext2fs_badblocks_list_free(bb_list); 1343 if (needed_blocks > ext2fs_free_blocks_count(fs->super)) 1344 return ENOSPC; 1345 1346 return 0; 1347} 1348 1349static int ext2fs_is_meta_block(ext2_filsys fs, blk64_t blk) 1350{ 1351 dgrp_t group; 1352 group = ext2fs_group_of_blk2(fs, blk); 1353 if (ext2fs_block_bitmap_loc(fs, group) == blk) 1354 return 1; 1355 if (ext2fs_inode_bitmap_loc(fs, group) == blk) 1356 return 1; 1357 return 0; 1358} 1359 1360static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk64_t blk) 1361{ 1362 blk64_t start_blk, end_blk; 1363 start_blk = fs->super->s_first_data_block + 1364 EXT2_BLOCKS_PER_GROUP(fs->super) * group; 1365 /* 1366 * We cannot get new block beyond end_blk for for the last block group 1367 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group 1368 */ 1369 end_blk = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super); 1370 if (blk >= start_blk && blk <= end_blk) 1371 return 1; 1372 return 0; 1373} 1374 1375static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap) 1376{ 1377 1378 char *buf; 1379 dgrp_t group = 0; 1380 errcode_t retval; 1381 int meta_data = 0; 1382 blk64_t blk, new_blk, goal; 1383 struct blk_move *bmv; 1384 1385 retval = ext2fs_get_mem(fs->blocksize, &buf); 1386 if (retval) 1387 return retval; 1388 1389 for (new_blk = blk = fs->super->s_first_data_block; 1390 blk < ext2fs_blocks_count(fs->super); blk++) { 1391 if (!ext2fs_test_block_bitmap2(bmap, blk)) 1392 continue; 1393 1394 if (ext2fs_is_meta_block(fs, blk)) { 1395 /* 1396 * If the block is mapping a fs meta data block 1397 * like group desc/block bitmap/inode bitmap. We 1398 * should find a block in the same group and fix 1399 * the respective fs metadata pointers. Otherwise 1400 * fail 1401 */ 1402 group = ext2fs_group_of_blk2(fs, blk); 1403 goal = ext2fs_group_first_block2(fs, group); 1404 meta_data = 1; 1405 1406 } else { 1407 goal = new_blk; 1408 } 1409 retval = ext2fs_new_block2(fs, goal, NULL, &new_blk); 1410 if (retval) 1411 goto err_out; 1412 1413 /* new fs meta data block should be in the same group */ 1414 if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) { 1415 retval = ENOSPC; 1416 goto err_out; 1417 } 1418 1419 /* Mark this block as allocated */ 1420 ext2fs_mark_block_bitmap2(fs->block_map, new_blk); 1421 1422 /* Add it to block move list */ 1423 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv); 1424 if (retval) 1425 goto err_out; 1426 1427 bmv->old_loc = blk; 1428 bmv->new_loc = new_blk; 1429 1430 list_add(&(bmv->list), &blk_move_list); 1431 1432 retval = io_channel_read_blk64(fs->io, blk, 1, buf); 1433 if (retval) 1434 goto err_out; 1435 1436 retval = io_channel_write_blk64(fs->io, new_blk, 1, buf); 1437 if (retval) 1438 goto err_out; 1439 } 1440 1441err_out: 1442 ext2fs_free_mem(&buf); 1443 return retval; 1444} 1445 1446static blk64_t translate_block(blk64_t blk) 1447{ 1448 struct list_head *entry; 1449 struct blk_move *bmv; 1450 1451 list_for_each(entry, &blk_move_list) { 1452 bmv = list_entry(entry, struct blk_move, list); 1453 if (bmv->old_loc == blk) 1454 return bmv->new_loc; 1455 } 1456 1457 return 0; 1458} 1459 1460static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)), 1461 blk64_t *block_nr, 1462 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 1463 blk64_t ref_block EXT2FS_ATTR((unused)), 1464 int ref_offset EXT2FS_ATTR((unused)), 1465 void *priv_data) 1466{ 1467 int ret = 0; 1468 blk64_t new_blk; 1469 ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data; 1470 1471 if (!ext2fs_test_block_bitmap2(bmap, *block_nr)) 1472 return 0; 1473 new_blk = translate_block(*block_nr); 1474 if (new_blk) { 1475 *block_nr = new_blk; 1476 /* 1477 * This will force the ext2fs_write_inode in the iterator 1478 */ 1479 ret |= BLOCK_CHANGED; 1480 } 1481 1482 return ret; 1483} 1484 1485static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap) 1486{ 1487 errcode_t retval = 0; 1488 ext2_ino_t ino; 1489 blk64_t blk; 1490 char *block_buf = 0; 1491 struct ext2_inode inode; 1492 ext2_inode_scan scan = NULL; 1493 1494 retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf); 1495 if (retval) 1496 return retval; 1497 1498 retval = ext2fs_open_inode_scan(fs, 0, &scan); 1499 if (retval) 1500 goto err_out; 1501 1502 while (1) { 1503 retval = ext2fs_get_next_inode(scan, &ino, &inode); 1504 if (retval) 1505 goto err_out; 1506 1507 if (!ino) 1508 break; 1509 1510 if (inode.i_links_count == 0) 1511 continue; /* inode not in use */ 1512 1513 /* FIXME!! 1514 * If we end up modifying the journal inode 1515 * the sb->s_jnl_blocks will differ. But a 1516 * subsequent e2fsck fixes that. 1517 * Do we need to fix this ?? 1518 */ 1519 1520 if (ext2fs_file_acl_block(fs, &inode) && 1521 ext2fs_test_block_bitmap2(bmap, 1522 ext2fs_file_acl_block(fs, &inode))) { 1523 blk = translate_block(ext2fs_file_acl_block(fs, 1524 &inode)); 1525 if (!blk) 1526 continue; 1527 1528 ext2fs_file_acl_block_set(fs, &inode, blk); 1529 1530 /* 1531 * Write the inode to disk so that inode table 1532 * resizing can work 1533 */ 1534 retval = ext2fs_write_inode(fs, ino, &inode); 1535 if (retval) 1536 goto err_out; 1537 } 1538 1539 if (!ext2fs_inode_has_valid_blocks2(fs, &inode)) 1540 continue; 1541 1542 retval = ext2fs_block_iterate3(fs, ino, 0, block_buf, 1543 process_block, bmap); 1544 if (retval) 1545 goto err_out; 1546 1547 } 1548 1549err_out: 1550 ext2fs_free_mem(&block_buf); 1551 1552 return retval; 1553} 1554 1555/* 1556 * We need to scan for inode and block bitmaps that may need to be 1557 * moved. This can take place if the filesystem was formatted for 1558 * RAID arrays using the mke2fs's extended option "stride". 1559 */ 1560static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap) 1561{ 1562 dgrp_t i; 1563 blk64_t blk, new_blk; 1564 1565 for (i = 0; i < fs->group_desc_count; i++) { 1566 blk = ext2fs_block_bitmap_loc(fs, i); 1567 if (ext2fs_test_block_bitmap2(bmap, blk)) { 1568 new_blk = translate_block(blk); 1569 if (!new_blk) 1570 continue; 1571 ext2fs_block_bitmap_loc_set(fs, i, new_blk); 1572 } 1573 1574 blk = ext2fs_inode_bitmap_loc(fs, i); 1575 if (ext2fs_test_block_bitmap2(bmap, blk)) { 1576 new_blk = translate_block(blk); 1577 if (!new_blk) 1578 continue; 1579 ext2fs_inode_bitmap_loc_set(fs, i, new_blk); 1580 } 1581 } 1582 return 0; 1583} 1584 1585static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size) 1586{ 1587 dgrp_t i; 1588 blk64_t blk; 1589 errcode_t retval; 1590 int new_ino_blks_per_grp; 1591 unsigned int j; 1592 char *old_itable = NULL, *new_itable = NULL; 1593 char *tmp_old_itable = NULL, *tmp_new_itable = NULL; 1594 unsigned long old_ino_size; 1595 int old_itable_size, new_itable_size; 1596 1597 old_itable_size = fs->inode_blocks_per_group * fs->blocksize; 1598 old_ino_size = EXT2_INODE_SIZE(fs->super); 1599 1600 new_ino_blks_per_grp = ext2fs_div_ceil( 1601 EXT2_INODES_PER_GROUP(fs->super) * 1602 new_ino_size, 1603 fs->blocksize); 1604 1605 new_itable_size = new_ino_blks_per_grp * fs->blocksize; 1606 1607 retval = ext2fs_get_mem(old_itable_size, &old_itable); 1608 if (retval) 1609 return retval; 1610 1611 retval = ext2fs_get_mem(new_itable_size, &new_itable); 1612 if (retval) 1613 goto err_out; 1614 1615 tmp_old_itable = old_itable; 1616 tmp_new_itable = new_itable; 1617 1618 for (i = 0; i < fs->group_desc_count; i++) { 1619 blk = ext2fs_inode_table_loc(fs, i); 1620 retval = io_channel_read_blk64(fs->io, blk, 1621 fs->inode_blocks_per_group, old_itable); 1622 if (retval) 1623 goto err_out; 1624 1625 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) { 1626 memcpy(new_itable, old_itable, old_ino_size); 1627 1628 memset(new_itable+old_ino_size, 0, 1629 new_ino_size - old_ino_size); 1630 1631 new_itable += new_ino_size; 1632 old_itable += old_ino_size; 1633 } 1634 1635 /* reset the pointer */ 1636 old_itable = tmp_old_itable; 1637 new_itable = tmp_new_itable; 1638 1639 retval = io_channel_write_blk64(fs->io, blk, 1640 new_ino_blks_per_grp, new_itable); 1641 if (retval) 1642 goto err_out; 1643 } 1644 1645 /* Update the meta data */ 1646 fs->inode_blocks_per_group = new_ino_blks_per_grp; 1647 fs->super->s_inode_size = new_ino_size; 1648 1649err_out: 1650 if (old_itable) 1651 ext2fs_free_mem(&old_itable); 1652 1653 if (new_itable) 1654 ext2fs_free_mem(&new_itable); 1655 1656 return retval; 1657} 1658 1659static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs) 1660{ 1661 blk64_t blk; 1662 ext2_ino_t ino; 1663 unsigned int group = 0; 1664 unsigned int count = 0; 1665 int total_free = 0; 1666 int group_free = 0; 1667 1668 /* 1669 * First calculate the block statistics 1670 */ 1671 for (blk = fs->super->s_first_data_block; 1672 blk < ext2fs_blocks_count(fs->super); blk++) { 1673 if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) { 1674 group_free++; 1675 total_free++; 1676 } 1677 count++; 1678 if ((count == fs->super->s_blocks_per_group) || 1679 (blk == ext2fs_blocks_count(fs->super)-1)) { 1680 ext2fs_bg_free_blocks_count_set(fs, group++, 1681 group_free); 1682 count = 0; 1683 group_free = 0; 1684 } 1685 } 1686 total_free = EXT2FS_C2B(fs, total_free); 1687 ext2fs_free_blocks_count_set(fs->super, total_free); 1688 1689 /* 1690 * Next, calculate the inode statistics 1691 */ 1692 group_free = 0; 1693 total_free = 0; 1694 count = 0; 1695 group = 0; 1696 1697 /* Protect loop from wrap-around if s_inodes_count maxed */ 1698 for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) { 1699 if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) { 1700 group_free++; 1701 total_free++; 1702 } 1703 count++; 1704 if ((count == fs->super->s_inodes_per_group) || 1705 (ino == fs->super->s_inodes_count)) { 1706 ext2fs_bg_free_inodes_count_set(fs, group++, 1707 group_free); 1708 count = 0; 1709 group_free = 0; 1710 } 1711 } 1712 fs->super->s_free_inodes_count = total_free; 1713 ext2fs_mark_super_dirty(fs); 1714 return 0; 1715} 1716 1717#define list_for_each_safe(pos, pnext, head) \ 1718 for (pos = (head)->next, pnext = pos->next; pos != (head); \ 1719 pos = pnext, pnext = pos->next) 1720 1721static void free_blk_move_list(void) 1722{ 1723 struct list_head *entry, *tmp; 1724 struct blk_move *bmv; 1725 1726 list_for_each_safe(entry, tmp, &blk_move_list) { 1727 bmv = list_entry(entry, struct blk_move, list); 1728 list_del(entry); 1729 ext2fs_free_mem(&bmv); 1730 } 1731 return; 1732} 1733 1734static int resize_inode(ext2_filsys fs, unsigned long new_size) 1735{ 1736 errcode_t retval; 1737 int new_ino_blks_per_grp; 1738 ext2fs_block_bitmap bmap; 1739 1740 retval = ext2fs_read_inode_bitmap(fs); 1741 if (retval) { 1742 fputs(_("Failed to read inode bitmap\n"), stderr); 1743 return retval; 1744 } 1745 retval = ext2fs_read_block_bitmap(fs); 1746 if (retval) { 1747 fputs(_("Failed to read block bitmap\n"), stderr); 1748 return retval; 1749 } 1750 INIT_LIST_HEAD(&blk_move_list); 1751 1752 1753 new_ino_blks_per_grp = ext2fs_div_ceil( 1754 EXT2_INODES_PER_GROUP(fs->super)* 1755 new_size, 1756 fs->blocksize); 1757 1758 /* We may change the file system. 1759 * Mark the file system as invalid so that 1760 * the user is prompted to run fsck. 1761 */ 1762 fs->super->s_state &= ~EXT2_VALID_FS; 1763 1764 retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"), 1765 &bmap); 1766 if (retval) { 1767 fputs(_("Failed to allocate block bitmap when " 1768 "increasing inode size\n"), stderr); 1769 return retval; 1770 } 1771 retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap); 1772 if (retval) { 1773 fputs(_("Not enough space to increase inode size \n"), stderr); 1774 goto err_out; 1775 } 1776 retval = move_block(fs, bmap); 1777 if (retval) { 1778 fputs(_("Failed to relocate blocks during inode resize \n"), 1779 stderr); 1780 goto err_out; 1781 } 1782 retval = inode_scan_and_fix(fs, bmap); 1783 if (retval) 1784 goto err_out_undo; 1785 1786 retval = group_desc_scan_and_fix(fs, bmap); 1787 if (retval) 1788 goto err_out_undo; 1789 1790 retval = expand_inode_table(fs, new_size); 1791 if (retval) 1792 goto err_out_undo; 1793 1794 ext2fs_calculate_summary_stats(fs); 1795 1796 fs->super->s_state |= EXT2_VALID_FS; 1797 /* mark super block and block bitmap as dirty */ 1798 ext2fs_mark_super_dirty(fs); 1799 ext2fs_mark_bb_dirty(fs); 1800 1801err_out: 1802 free_blk_move_list(); 1803 ext2fs_free_block_bitmap(bmap); 1804 1805 return retval; 1806 1807err_out_undo: 1808 free_blk_move_list(); 1809 ext2fs_free_block_bitmap(bmap); 1810 fputs(_("Error in resizing the inode size.\n" 1811 "Run e2undo to undo the " 1812 "file system changes. \n"), stderr); 1813 1814 return retval; 1815} 1816 1817static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr) 1818{ 1819 errcode_t retval = 0; 1820 const char *tdb_dir; 1821 char *tdb_file; 1822 char *dev_name, *tmp_name; 1823 1824#if 0 /* FIXME!! */ 1825 /* 1826 * Configuration via a conf file would be 1827 * nice 1828 */ 1829 profile_get_string(profile, "scratch_files", 1830 "directory", 0, 0, 1831 &tdb_dir); 1832#endif 1833 tmp_name = strdup(name); 1834 if (!tmp_name) { 1835 alloc_fn_fail: 1836 com_err(program_name, ENOMEM, "%s", 1837 _("Couldn't allocate memory for tdb filename\n")); 1838 return ENOMEM; 1839 } 1840 dev_name = basename(tmp_name); 1841 1842 tdb_dir = getenv("E2FSPROGS_UNDO_DIR"); 1843 if (!tdb_dir) 1844 tdb_dir = "/var/lib/e2fsprogs"; 1845 1846 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || 1847 access(tdb_dir, W_OK)) 1848 return 0; 1849 1850 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1); 1851 if (!tdb_file) 1852 goto alloc_fn_fail; 1853 sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name); 1854 1855 if (!access(tdb_file, F_OK)) { 1856 if (unlink(tdb_file) < 0) { 1857 retval = errno; 1858 com_err(program_name, retval, 1859 _("while trying to delete %s"), 1860 tdb_file); 1861 free(tdb_file); 1862 return retval; 1863 } 1864 } 1865 1866 set_undo_io_backing_manager(*io_ptr); 1867 *io_ptr = undo_io_manager; 1868 set_undo_io_backup_file(tdb_file); 1869 printf(_("To undo the tune2fs operation please run " 1870 "the command\n e2undo %s %s\n\n"), 1871 tdb_file, name); 1872 free(tdb_file); 1873 free(tmp_name); 1874 return retval; 1875} 1876 1877int main(int argc, char **argv) 1878{ 1879 errcode_t retval; 1880 ext2_filsys fs; 1881 struct ext2_super_block *sb; 1882 io_manager io_ptr, io_ptr_orig = NULL; 1883 int rc = 0; 1884 1885#ifdef ENABLE_NLS 1886 setlocale(LC_MESSAGES, ""); 1887 setlocale(LC_CTYPE, ""); 1888 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 1889 textdomain(NLS_CAT_NAME); 1890 set_com_err_gettext(gettext); 1891#endif 1892 if (argc && *argv) 1893 program_name = *argv; 1894 add_error_table(&et_ext2_error_table); 1895 1896#ifdef CONFIG_BUILD_FINDFS 1897 if (strcmp(get_progname(argv[0]), "findfs") == 0) 1898 do_findfs(argc, argv); 1899#endif 1900 if (strcmp(get_progname(argv[0]), "e2label") == 0) 1901 parse_e2label_options(argc, argv); 1902 else 1903 parse_tune2fs_options(argc, argv); 1904 1905#ifdef CONFIG_TESTIO_DEBUG 1906 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) { 1907 io_ptr = test_io_manager; 1908 test_io_backing_manager = unix_io_manager; 1909 } else 1910#endif 1911 io_ptr = unix_io_manager; 1912 1913retry_open: 1914 if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag) 1915 open_flag |= EXT2_FLAG_SKIP_MMP; 1916 1917 open_flag |= EXT2_FLAG_64BITS; 1918 1919 /* keep the filesystem struct around to dump MMP data */ 1920 open_flag |= EXT2_FLAG_NOFREE_ON_ERROR; 1921 1922 retval = ext2fs_open2(device_name, io_options, open_flag, 1923 0, 0, io_ptr, &fs); 1924 if (retval) { 1925 com_err(program_name, retval, 1926 _("while trying to open %s"), 1927 device_name); 1928 if (retval == EXT2_ET_MMP_FSCK_ON || 1929 retval == EXT2_ET_MMP_UNKNOWN_SEQ) 1930 dump_mmp_msg(fs->mmp_buf, 1931 _("If you are sure the filesystem " 1932 "is not in use on any node, run:\n" 1933 "'tune2fs -f -E clear_mmp {device}'\n")); 1934 else if (retval == EXT2_ET_MMP_FAILED) 1935 dump_mmp_msg(fs->mmp_buf, NULL); 1936 else if (retval == EXT2_ET_MMP_MAGIC_INVALID) 1937 fprintf(stderr, 1938 _("MMP block magic is bad. Try to fix it by " 1939 "running:\n'e2fsck -f %s'\n"), device_name); 1940 else if (retval != EXT2_ET_MMP_FAILED) 1941 fprintf(stderr, "%s", 1942 _("Couldn't find valid filesystem superblock.\n")); 1943 1944 ext2fs_free(fs); 1945 exit(1); 1946 } 1947 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE; 1948 1949 if (I_flag && !io_ptr_orig) { 1950 /* 1951 * Check the inode size is right so we can issue an 1952 * error message and bail before setting up the tdb 1953 * file. 1954 */ 1955 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) { 1956 fprintf(stderr, _("The inode size is already %lu\n"), 1957 new_inode_size); 1958 rc = 1; 1959 goto closefs; 1960 } 1961 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) { 1962 fprintf(stderr, "%s", 1963 _("Shrinking inode size is not supported\n")); 1964 rc = 1; 1965 goto closefs; 1966 } 1967 if (new_inode_size > fs->blocksize) { 1968 fprintf(stderr, _("Invalid inode size %lu (max %d)\n"), 1969 new_inode_size, fs->blocksize); 1970 rc = 1; 1971 goto closefs; 1972 } 1973 1974 /* 1975 * If inode resize is requested use the 1976 * Undo I/O manager 1977 */ 1978 io_ptr_orig = io_ptr; 1979 retval = tune2fs_setup_tdb(device_name, &io_ptr); 1980 if (retval) { 1981 rc = 1; 1982 goto closefs; 1983 } 1984 if (io_ptr != io_ptr_orig) { 1985 ext2fs_close(fs); 1986 goto retry_open; 1987 } 1988 } 1989 1990 sb = fs->super; 1991 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; 1992 1993 if (print_label) { 1994 /* For e2label emulation */ 1995 printf("%.*s\n", (int) sizeof(sb->s_volume_name), 1996 sb->s_volume_name); 1997 remove_error_table(&et_ext2_error_table); 1998 goto closefs; 1999 } 2000 2001 retval = ext2fs_check_if_mounted(device_name, &mount_flags); 2002 if (retval) { 2003 com_err("ext2fs_check_if_mount", retval, 2004 _("while determining whether %s is mounted."), 2005 device_name); 2006 rc = 1; 2007 goto closefs; 2008 } 2009 /* Normally we only need to write out the superblock */ 2010 fs->flags |= EXT2_FLAG_SUPER_ONLY; 2011 2012 if (c_flag) { 2013 sb->s_max_mnt_count = max_mount_count; 2014 ext2fs_mark_super_dirty(fs); 2015 printf(_("Setting maximal mount count to %d\n"), 2016 max_mount_count); 2017 } 2018 if (C_flag) { 2019 sb->s_mnt_count = mount_count; 2020 ext2fs_mark_super_dirty(fs); 2021 printf(_("Setting current mount count to %d\n"), mount_count); 2022 } 2023 if (e_flag) { 2024 sb->s_errors = errors; 2025 ext2fs_mark_super_dirty(fs); 2026 printf(_("Setting error behavior to %d\n"), errors); 2027 } 2028 if (g_flag) { 2029 sb->s_def_resgid = resgid; 2030 ext2fs_mark_super_dirty(fs); 2031 printf(_("Setting reserved blocks gid to %lu\n"), resgid); 2032 } 2033 if (i_flag) { 2034 if (interval >= (1ULL << 32)) { 2035 com_err(program_name, 0, 2036 _("interval between checks is too big (%lu)"), 2037 interval); 2038 rc = 1; 2039 goto closefs; 2040 } 2041 sb->s_checkinterval = interval; 2042 ext2fs_mark_super_dirty(fs); 2043 printf(_("Setting interval between checks to %lu seconds\n"), 2044 interval); 2045 } 2046 if (m_flag) { 2047 ext2fs_r_blocks_count_set(sb, reserved_ratio * 2048 ext2fs_blocks_count(sb) / 100.0); 2049 ext2fs_mark_super_dirty(fs); 2050 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"), 2051 reserved_ratio, ext2fs_r_blocks_count(sb)); 2052 } 2053 if (r_flag) { 2054 if (reserved_blocks > ext2fs_blocks_count(sb)/2) { 2055 com_err(program_name, 0, 2056 _("reserved blocks count is too big (%llu)"), 2057 reserved_blocks); 2058 rc = 1; 2059 goto closefs; 2060 } 2061 ext2fs_r_blocks_count_set(sb, reserved_blocks); 2062 ext2fs_mark_super_dirty(fs); 2063 printf(_("Setting reserved blocks count to %llu\n"), 2064 reserved_blocks); 2065 } 2066 if (s_flag == 1) { 2067 if (sb->s_feature_ro_compat & 2068 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) 2069 fputs(_("\nThe filesystem already has sparse " 2070 "superblocks.\n"), stderr); 2071 else { 2072 sb->s_feature_ro_compat |= 2073 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 2074 sb->s_state &= ~EXT2_VALID_FS; 2075 ext2fs_mark_super_dirty(fs); 2076 printf(_("\nSparse superblock flag set. %s"), 2077 _(please_fsck)); 2078 } 2079 } 2080 if (s_flag == 0) { 2081 fputs(_("\nClearing the sparse superflag not supported.\n"), 2082 stderr); 2083 rc = 1; 2084 goto closefs; 2085 } 2086 if (T_flag) { 2087 sb->s_lastcheck = last_check_time; 2088 ext2fs_mark_super_dirty(fs); 2089 printf(_("Setting time filesystem last checked to %s\n"), 2090 ctime(&last_check_time)); 2091 } 2092 if (u_flag) { 2093 sb->s_def_resuid = resuid; 2094 ext2fs_mark_super_dirty(fs); 2095 printf(_("Setting reserved blocks uid to %lu\n"), resuid); 2096 } 2097 if (L_flag) { 2098 if (strlen(new_label) > sizeof(sb->s_volume_name)) 2099 fputs(_("Warning: label too long, truncating.\n"), 2100 stderr); 2101 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name)); 2102 strncpy(sb->s_volume_name, new_label, 2103 sizeof(sb->s_volume_name)); 2104 ext2fs_mark_super_dirty(fs); 2105 } 2106 if (M_flag) { 2107 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted)); 2108 strncpy(sb->s_last_mounted, new_last_mounted, 2109 sizeof(sb->s_last_mounted)); 2110 ext2fs_mark_super_dirty(fs); 2111 } 2112 if (mntopts_cmd) { 2113 rc = update_mntopts(fs, mntopts_cmd); 2114 if (rc) 2115 goto closefs; 2116 } 2117 if (features_cmd) { 2118 rc = update_feature_set(fs, features_cmd); 2119 if (rc) 2120 goto closefs; 2121 } 2122 if (extended_cmd) { 2123 rc = parse_extended_opts(fs, extended_cmd); 2124 if (rc) 2125 goto closefs; 2126 if (clear_mmp && !f_flag) { 2127 fputs(_("Error in using clear_mmp. " 2128 "It must be used with -f\n"), 2129 stderr); 2130 goto closefs; 2131 } 2132 } 2133 if (clear_mmp) { 2134 rc = ext2fs_mmp_clear(fs); 2135 goto closefs; 2136 } 2137 if (journal_size || journal_device) { 2138 rc = add_journal(fs); 2139 if (rc) 2140 goto closefs; 2141 } 2142 2143 if (Q_flag) { 2144 if (mount_flags & EXT2_MF_MOUNTED) { 2145 fputs(_("The quota feature may only be changed when " 2146 "the filesystem is unmounted.\n"), stderr); 2147 rc = 1; 2148 goto closefs; 2149 } 2150 handle_quota_options(fs); 2151 } 2152 2153 if (U_flag) { 2154 int set_csum = 0; 2155 dgrp_t i; 2156 2157 if (sb->s_feature_ro_compat & 2158 EXT4_FEATURE_RO_COMPAT_GDT_CSUM) { 2159 /* 2160 * Changing the UUID requires rewriting all metadata, 2161 * which can race with a mounted fs. Don't allow that. 2162 */ 2163 if (mount_flags & EXT2_MF_MOUNTED) { 2164 fputs(_("The UUID may only be " 2165 "changed when the filesystem is " 2166 "unmounted.\n"), stderr); 2167 exit(1); 2168 } 2169 if (check_fsck_needed(fs)) 2170 exit(1); 2171 2172 /* 2173 * Determine if the block group checksums are 2174 * correct so we know whether or not to set 2175 * them later on. 2176 */ 2177 for (i = 0; i < fs->group_desc_count; i++) 2178 if (!ext2fs_group_desc_csum_verify(fs, i)) 2179 break; 2180 if (i >= fs->group_desc_count) 2181 set_csum = 1; 2182 } 2183 if ((strcasecmp(new_UUID, "null") == 0) || 2184 (strcasecmp(new_UUID, "clear") == 0)) { 2185 uuid_clear(sb->s_uuid); 2186 } else if (strcasecmp(new_UUID, "time") == 0) { 2187 uuid_generate_time(sb->s_uuid); 2188 } else if (strcasecmp(new_UUID, "random") == 0) { 2189 uuid_generate(sb->s_uuid); 2190 } else if (uuid_parse(new_UUID, sb->s_uuid)) { 2191 com_err(program_name, 0, "%s", 2192 _("Invalid UUID format\n")); 2193 rc = 1; 2194 goto closefs; 2195 } 2196 if (set_csum) { 2197 for (i = 0; i < fs->group_desc_count; i++) 2198 ext2fs_group_desc_csum_set(fs, i); 2199 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 2200 } 2201 ext2fs_mark_super_dirty(fs); 2202 } 2203 if (I_flag) { 2204 if (mount_flags & EXT2_MF_MOUNTED) { 2205 fputs(_("The inode size may only be " 2206 "changed when the filesystem is " 2207 "unmounted.\n"), stderr); 2208 rc = 1; 2209 goto closefs; 2210 } 2211 if (fs->super->s_feature_incompat & 2212 EXT4_FEATURE_INCOMPAT_FLEX_BG) { 2213 fputs(_("Changing the inode size not supported for " 2214 "filesystems with the flex_bg\n" 2215 "feature enabled.\n"), 2216 stderr); 2217 rc = 1; 2218 goto closefs; 2219 } 2220 /* 2221 * We want to update group descriptor also 2222 * with the new free inode count 2223 */ 2224 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 2225 if (resize_inode(fs, new_inode_size) == 0) { 2226 printf(_("Setting inode size %lu\n"), 2227 new_inode_size); 2228 } else { 2229 printf("%s", _("Failed to change inode size\n")); 2230 rc = 1; 2231 goto closefs; 2232 } 2233 } 2234 2235 if (l_flag) 2236 list_super(sb); 2237 if (stride_set) { 2238 sb->s_raid_stride = stride; 2239 ext2fs_mark_super_dirty(fs); 2240 printf(_("Setting stride size to %d\n"), stride); 2241 } 2242 if (stripe_width_set) { 2243 sb->s_raid_stripe_width = stripe_width; 2244 ext2fs_mark_super_dirty(fs); 2245 printf(_("Setting stripe width to %d\n"), stripe_width); 2246 } 2247 if (ext_mount_opts) { 2248 strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts, 2249 sizeof(fs->super->s_mount_opts)); 2250 fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0; 2251 ext2fs_mark_super_dirty(fs); 2252 printf(_("Setting extended default mount options to '%s'\n"), 2253 ext_mount_opts); 2254 free(ext_mount_opts); 2255 } 2256 free(device_name); 2257 remove_error_table(&et_ext2_error_table); 2258 2259closefs: 2260 if (rc) { 2261 ext2fs_mmp_stop(fs); 2262 exit(1); 2263 } 2264 2265 return (ext2fs_close(fs) ? 1 : 0); 2266} 2267