tune2fs.c revision a713a7fe5a929c0e1307e6bded8ac66805c7e748
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#ifdef CONFIG_QUOTA 145 EXT4_FEATURE_RO_COMPAT_QUOTA | 146#endif 147 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 148}; 149 150static __u32 clear_ok_features[3] = { 151 /* Compat */ 152 EXT3_FEATURE_COMPAT_HAS_JOURNAL | 153 EXT2_FEATURE_COMPAT_RESIZE_INODE | 154 EXT2_FEATURE_COMPAT_DIR_INDEX, 155 /* Incompat */ 156 EXT2_FEATURE_INCOMPAT_FILETYPE | 157 EXT4_FEATURE_INCOMPAT_FLEX_BG | 158 EXT4_FEATURE_INCOMPAT_MMP, 159 /* R/O compat */ 160 EXT2_FEATURE_RO_COMPAT_LARGE_FILE | 161 EXT4_FEATURE_RO_COMPAT_HUGE_FILE| 162 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 163 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE| 164#ifdef CONFIG_QUOTA 165 EXT4_FEATURE_RO_COMPAT_QUOTA | 166#endif 167 EXT4_FEATURE_RO_COMPAT_GDT_CSUM 168}; 169 170/* 171 * Remove an external journal from the filesystem 172 */ 173static int remove_journal_device(ext2_filsys fs) 174{ 175 char *journal_path; 176 ext2_filsys jfs; 177 char buf[1024]; 178 journal_superblock_t *jsb; 179 int i, nr_users; 180 errcode_t retval; 181 int commit_remove_journal = 0; 182 io_manager io_ptr; 183 184 if (f_flag) 185 commit_remove_journal = 1; /* force removal even if error */ 186 187 uuid_unparse(fs->super->s_journal_uuid, buf); 188 journal_path = blkid_get_devname(NULL, "UUID", buf); 189 190 if (!journal_path) { 191 journal_path = 192 ext2fs_find_block_device(fs->super->s_journal_dev); 193 if (!journal_path) 194 goto no_valid_journal; 195 } 196 197#ifdef CONFIG_TESTIO_DEBUG 198 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 199 io_ptr = test_io_manager; 200 test_io_backing_manager = unix_io_manager; 201 } else 202#endif 203 io_ptr = unix_io_manager; 204 retval = ext2fs_open(journal_path, EXT2_FLAG_RW| 205 EXT2_FLAG_JOURNAL_DEV_OK, 0, 206 fs->blocksize, io_ptr, &jfs); 207 if (retval) { 208 com_err(program_name, retval, 209 _("while trying to open external journal")); 210 goto no_valid_journal; 211 } 212 if (!(jfs->super->s_feature_incompat & 213 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) { 214 fprintf(stderr, _("%s is not a journal device.\n"), 215 journal_path); 216 goto no_valid_journal; 217 } 218 219 /* Get the journal superblock */ 220 if ((retval = io_channel_read_blk64(jfs->io, 1, -1024, buf))) { 221 com_err(program_name, retval, 222 _("while reading journal superblock")); 223 goto no_valid_journal; 224 } 225 226 jsb = (journal_superblock_t *) buf; 227 if ((jsb->s_header.h_magic != (unsigned)ntohl(JFS_MAGIC_NUMBER)) || 228 (jsb->s_header.h_blocktype != (unsigned)ntohl(JFS_SUPERBLOCK_V2))) { 229 fputs(_("Journal superblock not found!\n"), stderr); 230 goto no_valid_journal; 231 } 232 233 /* Find the filesystem UUID */ 234 nr_users = ntohl(jsb->s_nr_users); 235 for (i = 0; i < nr_users; i++) { 236 if (memcmp(fs->super->s_uuid, &jsb->s_users[i * 16], 16) == 0) 237 break; 238 } 239 if (i >= nr_users) { 240 fputs(_("Filesystem's UUID not found on journal device.\n"), 241 stderr); 242 commit_remove_journal = 1; 243 goto no_valid_journal; 244 } 245 nr_users--; 246 for (i = 0; i < nr_users; i++) 247 memcpy(&jsb->s_users[i * 16], &jsb->s_users[(i + 1) * 16], 16); 248 jsb->s_nr_users = htonl(nr_users); 249 250 /* Write back the journal superblock */ 251 if ((retval = io_channel_write_blk64(jfs->io, 1, -1024, buf))) { 252 com_err(program_name, retval, 253 "while writing journal superblock."); 254 goto no_valid_journal; 255 } 256 257 commit_remove_journal = 1; 258 259no_valid_journal: 260 if (commit_remove_journal == 0) { 261 fputs(_("Cannot locate journal device. It was NOT removed\n" 262 "Use -f option to remove missing journal device.\n"), 263 stderr); 264 return 1; 265 } 266 fs->super->s_journal_dev = 0; 267 uuid_clear(fs->super->s_journal_uuid); 268 ext2fs_mark_super_dirty(fs); 269 fputs(_("Journal removed\n"), stdout); 270 free(journal_path); 271 272 return 0; 273} 274 275/* Helper function for remove_journal_inode */ 276static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr, 277 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 278 blk64_t ref_block EXT2FS_ATTR((unused)), 279 int ref_offset EXT2FS_ATTR((unused)), 280 void *private EXT2FS_ATTR((unused))) 281{ 282 blk64_t block; 283 int group; 284 285 block = *blocknr; 286 ext2fs_unmark_block_bitmap2(fs->block_map, block); 287 group = ext2fs_group_of_blk2(fs, block); 288 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1); 289 ext2fs_group_desc_csum_set(fs, group); 290 ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs)); 291 return 0; 292} 293 294/* 295 * Remove the journal inode from the filesystem 296 */ 297static errcode_t remove_journal_inode(ext2_filsys fs) 298{ 299 struct ext2_inode inode; 300 errcode_t retval; 301 ino_t ino = fs->super->s_journal_inum; 302 303 retval = ext2fs_read_inode(fs, ino, &inode); 304 if (retval) { 305 com_err(program_name, retval, 306 _("while reading journal inode")); 307 return retval; 308 } 309 if (ino == EXT2_JOURNAL_INO) { 310 retval = ext2fs_read_bitmaps(fs); 311 if (retval) { 312 com_err(program_name, retval, 313 _("while reading bitmaps")); 314 return retval; 315 } 316 retval = ext2fs_block_iterate3(fs, ino, 317 BLOCK_FLAG_READ_ONLY, NULL, 318 release_blocks_proc, NULL); 319 if (retval) { 320 com_err(program_name, retval, 321 _("while clearing journal inode")); 322 return retval; 323 } 324 memset(&inode, 0, sizeof(inode)); 325 ext2fs_mark_bb_dirty(fs); 326 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 327 } else 328 inode.i_flags &= ~EXT2_IMMUTABLE_FL; 329 retval = ext2fs_write_inode(fs, ino, &inode); 330 if (retval) { 331 com_err(program_name, retval, 332 _("while writing journal inode")); 333 return retval; 334 } 335 fs->super->s_journal_inum = 0; 336 ext2fs_mark_super_dirty(fs); 337 338 return 0; 339} 340 341/* 342 * Update the default mount options 343 */ 344static int update_mntopts(ext2_filsys fs, char *mntopts) 345{ 346 struct ext2_super_block *sb = fs->super; 347 348 if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) { 349 fprintf(stderr, _("Invalid mount option set: %s\n"), 350 mntopts); 351 return 1; 352 } 353 ext2fs_mark_super_dirty(fs); 354 355 return 0; 356} 357 358static void request_fsck_afterwards(ext2_filsys fs) 359{ 360 static int requested = 0; 361 362 if (requested++) 363 return; 364 fs->super->s_state &= ~EXT2_VALID_FS; 365 printf("\n%s\n", _(please_fsck)); 366 if (mount_flags & EXT2_MF_READONLY) 367 printf(_("(and reboot afterwards!)\n")); 368} 369 370/* 371 * Update the feature set as provided by the user. 372 */ 373static int update_feature_set(ext2_filsys fs, char *features) 374{ 375 struct ext2_super_block *sb = fs->super; 376 struct ext2_group_desc *gd; 377 __u32 old_features[3]; 378 int i, type_err; 379 unsigned int mask_err; 380 381#define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \ 382 ((&sb->s_feature_compat)[(type)] & (mask))) 383#define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \ 384 !((&sb->s_feature_compat)[(type)] & (mask))) 385#define FEATURE_CHANGED(type, mask) ((mask) & \ 386 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)])) 387 388 old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat; 389 old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat; 390 old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat; 391 392 if (e2p_edit_feature2(features, &sb->s_feature_compat, 393 ok_features, clear_ok_features, 394 &type_err, &mask_err)) { 395 if (!mask_err) 396 fprintf(stderr, 397 _("Invalid filesystem option set: %s\n"), 398 features); 399 else if (type_err & E2P_FEATURE_NEGATE_FLAG) 400 fprintf(stderr, _("Clearing filesystem feature '%s' " 401 "not supported.\n"), 402 e2p_feature2string(type_err & 403 E2P_FEATURE_TYPE_MASK, 404 mask_err)); 405 else 406 fprintf(stderr, _("Setting filesystem feature '%s' " 407 "not supported.\n"), 408 e2p_feature2string(type_err, mask_err)); 409 return 1; 410 } 411 412 if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 413 if ((mount_flags & EXT2_MF_MOUNTED) && 414 !(mount_flags & EXT2_MF_READONLY)) { 415 fputs(_("The has_journal feature may only be " 416 "cleared when the filesystem is\n" 417 "unmounted or mounted " 418 "read-only.\n"), stderr); 419 return 1; 420 } 421 if (sb->s_feature_incompat & 422 EXT3_FEATURE_INCOMPAT_RECOVER) { 423 fputs(_("The needs_recovery flag is set. " 424 "Please run e2fsck before clearing\n" 425 "the has_journal flag.\n"), stderr); 426 return 1; 427 } 428 if (sb->s_journal_inum) { 429 if (remove_journal_inode(fs)) 430 return 1; 431 } 432 if (sb->s_journal_dev) { 433 if (remove_journal_device(fs)) 434 return 1; 435 } 436 } 437 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) { 438 int error; 439 440 if ((mount_flags & EXT2_MF_MOUNTED) || 441 (mount_flags & EXT2_MF_READONLY)) { 442 fputs(_("The multiple mount protection feature can't\n" 443 "be set if the filesystem is mounted or\n" 444 "read-only.\n"), stderr); 445 return 1; 446 } 447 448 error = ext2fs_mmp_init(fs); 449 if (error) { 450 fputs(_("\nError while enabling multiple mount " 451 "protection feature."), stderr); 452 return 1; 453 } 454 455 /* 456 * We want to update group desc with the new free blocks count 457 */ 458 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 459 460 printf(_("Multiple mount protection has been enabled " 461 "with update interval %ds.\n"), 462 sb->s_mmp_update_interval); 463 } 464 465 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) { 466 int error; 467 468 if (mount_flags & EXT2_MF_READONLY) { 469 fputs(_("The multiple mount protection feature cannot\n" 470 "be disabled if the filesystem is readonly.\n"), 471 stderr); 472 return 1; 473 } 474 475 error = ext2fs_read_bitmaps(fs); 476 if (error) { 477 fputs(_("Error while reading bitmaps\n"), stderr); 478 return 1; 479 } 480 481 error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL); 482 if (error) { 483 struct mmp_struct *mmp_cmp = fs->mmp_cmp; 484 485 if (error == EXT2_ET_MMP_MAGIC_INVALID) 486 printf(_("Magic number in MMP block does not " 487 "match. expected: %x, actual: %x\n"), 488 EXT4_MMP_MAGIC, mmp_cmp->mmp_magic); 489 else 490 com_err(program_name, error, 491 _("while reading MMP block.")); 492 goto mmp_error; 493 } 494 495 /* We need to force out the group descriptors as well */ 496 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 497 ext2fs_block_alloc_stats(fs, sb->s_mmp_block, -1); 498mmp_error: 499 sb->s_mmp_block = 0; 500 sb->s_mmp_update_interval = 0; 501 } 502 503 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 504 /* 505 * If adding a journal flag, let the create journal 506 * code below handle setting the flag and creating the 507 * journal. We supply a default size if necessary. 508 */ 509 if (!journal_size) 510 journal_size = -1; 511 sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; 512 } 513 514 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) { 515 if (!sb->s_def_hash_version) 516 sb->s_def_hash_version = EXT2_HASH_HALF_MD4; 517 if (uuid_is_null((unsigned char *) sb->s_hash_seed)) 518 uuid_generate((unsigned char *) sb->s_hash_seed); 519 } 520 521 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) { 522 if (ext2fs_check_desc(fs)) { 523 fputs(_("Clearing the flex_bg flag would " 524 "cause the the filesystem to be\n" 525 "inconsistent.\n"), stderr); 526 return 1; 527 } 528 } 529 530 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 531 EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) { 532 if ((mount_flags & EXT2_MF_MOUNTED) && 533 !(mount_flags & EXT2_MF_READONLY)) { 534 fputs(_("The huge_file feature may only be " 535 "cleared when the filesystem is\n" 536 "unmounted or mounted " 537 "read-only.\n"), stderr); 538 return 1; 539 } 540 } 541 542 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, 543 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) { 544 for (i = 0; i < fs->group_desc_count; i++) { 545 gd = ext2fs_group_desc(fs, fs->group_desc, i); 546 gd->bg_itable_unused = 0; 547 gd->bg_flags = EXT2_BG_INODE_ZEROED; 548 ext2fs_group_desc_csum_set(fs, i); 549 } 550 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 551 } 552 553 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 554 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) { 555 for (i = 0; i < fs->group_desc_count; i++) { 556 gd = ext2fs_group_desc(fs, fs->group_desc, i); 557 if ((gd->bg_flags & EXT2_BG_INODE_ZEROED) == 0) { 558 /* 559 * XXX what we really should do is zap 560 * uninitialized inode tables instead. 561 */ 562 request_fsck_afterwards(fs); 563 break; 564 } 565 gd->bg_itable_unused = 0; 566 gd->bg_flags = 0; 567 gd->bg_checksum = 0; 568 } 569 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 570 } 571 572 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, 573 EXT4_FEATURE_RO_COMPAT_QUOTA)) { 574 /* 575 * Set the Q_flag here and handle the quota options in the code 576 * below. 577 */ 578 if (!Q_flag) { 579 Q_flag = 1; 580 /* Enable both user quota and group quota by default */ 581 usrquota = QOPT_ENABLE; 582 grpquota = QOPT_ENABLE; 583 } 584 sb->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA; 585 } 586 587 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 588 EXT4_FEATURE_RO_COMPAT_QUOTA)) { 589 /* 590 * Set the Q_flag here and handle the quota options in the code 591 * below. 592 */ 593 if (Q_flag) 594 fputs(_("\nWarning: '^quota' option overrides '-Q'" 595 "arguments.\n"), stderr); 596 Q_flag = 1; 597 /* Disable both user quota and group quota by default */ 598 usrquota = QOPT_DISABLE; 599 grpquota = QOPT_DISABLE; 600 } 601 602 if (sb->s_rev_level == EXT2_GOOD_OLD_REV && 603 (sb->s_feature_compat || sb->s_feature_ro_compat || 604 sb->s_feature_incompat)) 605 ext2fs_update_dynamic_rev(fs); 606 607 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT, 608 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) || 609 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 610 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) || 611 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT, 612 EXT2_FEATURE_INCOMPAT_FILETYPE) || 613 FEATURE_CHANGED(E2P_FEATURE_COMPAT, 614 EXT2_FEATURE_COMPAT_RESIZE_INODE) || 615 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 616 EXT2_FEATURE_RO_COMPAT_LARGE_FILE)) 617 request_fsck_afterwards(fs); 618 619 if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) || 620 (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) || 621 (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat)) 622 ext2fs_mark_super_dirty(fs); 623 624 return 0; 625} 626 627/* 628 * Add a journal to the filesystem. 629 */ 630static int add_journal(ext2_filsys fs) 631{ 632 unsigned long journal_blocks; 633 errcode_t retval; 634 ext2_filsys jfs; 635 io_manager io_ptr; 636 637 if (fs->super->s_feature_compat & 638 EXT3_FEATURE_COMPAT_HAS_JOURNAL) { 639 fputs(_("The filesystem already has a journal.\n"), stderr); 640 goto err; 641 } 642 if (journal_device) { 643 check_plausibility(journal_device); 644 check_mount(journal_device, 0, _("journal")); 645#ifdef CONFIG_TESTIO_DEBUG 646 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 647 io_ptr = test_io_manager; 648 test_io_backing_manager = unix_io_manager; 649 } else 650#endif 651 io_ptr = unix_io_manager; 652 retval = ext2fs_open(journal_device, EXT2_FLAG_RW| 653 EXT2_FLAG_JOURNAL_DEV_OK, 0, 654 fs->blocksize, io_ptr, &jfs); 655 if (retval) { 656 com_err(program_name, retval, 657 _("\n\twhile trying to open journal on %s\n"), 658 journal_device); 659 goto err; 660 } 661 printf(_("Creating journal on device %s: "), 662 journal_device); 663 fflush(stdout); 664 665 retval = ext2fs_add_journal_device(fs, jfs); 666 ext2fs_close(jfs); 667 if (retval) { 668 com_err(program_name, retval, 669 _("while adding filesystem to journal on %s"), 670 journal_device); 671 goto err; 672 } 673 fputs(_("done\n"), stdout); 674 } else if (journal_size) { 675 fputs(_("Creating journal inode: "), stdout); 676 fflush(stdout); 677 journal_blocks = figure_journal_size(journal_size, fs); 678 679 retval = ext2fs_add_journal_inode(fs, journal_blocks, 680 journal_flags); 681 if (retval) { 682 fprintf(stderr, "\n"); 683 com_err(program_name, retval, 684 _("\n\twhile trying to create journal file")); 685 return retval; 686 } else 687 fputs(_("done\n"), stdout); 688 /* 689 * If the filesystem wasn't mounted, we need to force 690 * the block group descriptors out. 691 */ 692 if ((mount_flags & EXT2_MF_MOUNTED) == 0) 693 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 694 } 695 print_check_message(fs->super->s_max_mnt_count, 696 fs->super->s_checkinterval); 697 return 0; 698 699err: 700 free(journal_device); 701 return 1; 702} 703 704void handle_quota_options(ext2_filsys fs) 705{ 706 quota_ctx_t qctx; 707 ext2_ino_t qf_ino; 708 709 if (!usrquota && !grpquota) 710 /* Nothing to do. */ 711 return; 712 713 quota_init_context(&qctx, fs, -1); 714 715 if (usrquota == QOPT_ENABLE || grpquota == QOPT_ENABLE) 716 quota_compute_usage(qctx); 717 718 if (usrquota == QOPT_ENABLE && !fs->super->s_usr_quota_inum) { 719 if ((qf_ino = quota_file_exists(fs, USRQUOTA, 720 QFMT_VFS_V1)) > 0) 721 quota_update_limits(qctx, qf_ino, USRQUOTA); 722 quota_write_inode(qctx, USRQUOTA); 723 } else if (usrquota == QOPT_DISABLE) { 724 quota_remove_inode(fs, USRQUOTA); 725 } 726 727 if (grpquota == QOPT_ENABLE && !fs->super->s_grp_quota_inum) { 728 if ((qf_ino = quota_file_exists(fs, GRPQUOTA, 729 QFMT_VFS_V1)) > 0) 730 quota_update_limits(qctx, qf_ino, GRPQUOTA); 731 quota_write_inode(qctx, GRPQUOTA); 732 } else if (grpquota == QOPT_DISABLE) { 733 quota_remove_inode(fs, GRPQUOTA); 734 } 735 736 quota_release_context(&qctx); 737 738 if ((usrquota == QOPT_ENABLE) || (grpquota == QOPT_ENABLE)) { 739 fprintf(stderr, _("\nWarning: the quota feature is still " 740 "under development\n" 741 "See https://ext4.wiki.kernel.org/" 742 "index.php/Quota for more information\n\n")); 743 fs->super->s_feature_ro_compat |= EXT4_FEATURE_RO_COMPAT_QUOTA; 744 ext2fs_mark_super_dirty(fs); 745 } else if (!fs->super->s_usr_quota_inum && 746 !fs->super->s_grp_quota_inum) { 747 fs->super->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA; 748 ext2fs_mark_super_dirty(fs); 749 } 750 751 return; 752} 753 754void parse_quota_opts(const char *opts) 755{ 756 char *buf, *token, *next, *p; 757 int len; 758 759 len = strlen(opts); 760 buf = malloc(len+1); 761 if (!buf) { 762 fputs(_("Couldn't allocate memory to parse quota " 763 "options!\n"), stderr); 764 exit(1); 765 } 766 strcpy(buf, opts); 767 for (token = buf; token && *token; token = next) { 768 p = strchr(token, ','); 769 next = 0; 770 if (p) { 771 *p = 0; 772 next = p+1; 773 } 774 775 if (strcmp(token, "usrquota") == 0) { 776 usrquota = QOPT_ENABLE; 777 } else if (strcmp(token, "^usrquota") == 0) { 778 usrquota = QOPT_DISABLE; 779 } else if (strcmp(token, "grpquota") == 0) { 780 grpquota = QOPT_ENABLE; 781 } else if (strcmp(token, "^grpquota") == 0) { 782 grpquota = QOPT_DISABLE; 783 } else { 784 fputs(_("\nBad quota options specified.\n\n" 785 "Following valid quota options are available " 786 "(pass by separating with comma):\n" 787 "\t[^]usrquota\n" 788 "\t[^]grpquota\n" 789 "\n\n"), stderr); 790 free(buf); 791 exit(1); 792 } 793 } 794 free(buf); 795} 796 797 798 799static void parse_e2label_options(int argc, char ** argv) 800{ 801 if ((argc < 2) || (argc > 3)) { 802 fputs(_("Usage: e2label device [newlabel]\n"), stderr); 803 exit(1); 804 } 805 io_options = strchr(argv[1], '?'); 806 if (io_options) 807 *io_options++ = 0; 808 device_name = blkid_get_devname(NULL, argv[1], NULL); 809 if (!device_name) { 810 com_err("e2label", 0, _("Unable to resolve '%s'"), 811 argv[1]); 812 exit(1); 813 } 814 open_flag = EXT2_FLAG_JOURNAL_DEV_OK; 815 if (argc == 3) { 816 open_flag |= EXT2_FLAG_RW; 817 L_flag = 1; 818 new_label = argv[2]; 819 } else 820 print_label++; 821} 822 823static time_t parse_time(char *str) 824{ 825 struct tm ts; 826 827 if (strcmp(str, "now") == 0) { 828 return (time(0)); 829 } 830 memset(&ts, 0, sizeof(ts)); 831#ifdef HAVE_STRPTIME 832 strptime(str, "%Y%m%d%H%M%S", &ts); 833#else 834 sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon, 835 &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec); 836 ts.tm_year -= 1900; 837 ts.tm_mon -= 1; 838 if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 || 839 ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 || 840 ts.tm_min > 59 || ts.tm_sec > 61) 841 ts.tm_mday = 0; 842#endif 843 if (ts.tm_mday == 0) { 844 com_err(program_name, 0, 845 _("Couldn't parse date/time specifier: %s"), 846 str); 847 usage(); 848 } 849 ts.tm_isdst = -1; 850 return (mktime(&ts)); 851} 852 853static void parse_tune2fs_options(int argc, char **argv) 854{ 855 int c; 856 char *tmp; 857 struct group *gr; 858 struct passwd *pw; 859 860 open_flag = 0; 861 862 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE); 863 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) 864 switch (c) { 865 case 'c': 866 max_mount_count = strtol(optarg, &tmp, 0); 867 if (*tmp || max_mount_count > 16000) { 868 com_err(program_name, 0, 869 _("bad mounts count - %s"), 870 optarg); 871 usage(); 872 } 873 if (max_mount_count == 0) 874 max_mount_count = -1; 875 c_flag = 1; 876 open_flag = EXT2_FLAG_RW; 877 break; 878 case 'C': 879 mount_count = strtoul(optarg, &tmp, 0); 880 if (*tmp || mount_count > 16000) { 881 com_err(program_name, 0, 882 _("bad mounts count - %s"), 883 optarg); 884 usage(); 885 } 886 C_flag = 1; 887 open_flag = EXT2_FLAG_RW; 888 break; 889 case 'e': 890 if (strcmp(optarg, "continue") == 0) 891 errors = EXT2_ERRORS_CONTINUE; 892 else if (strcmp(optarg, "remount-ro") == 0) 893 errors = EXT2_ERRORS_RO; 894 else if (strcmp(optarg, "panic") == 0) 895 errors = EXT2_ERRORS_PANIC; 896 else { 897 com_err(program_name, 0, 898 _("bad error behavior - %s"), 899 optarg); 900 usage(); 901 } 902 e_flag = 1; 903 open_flag = EXT2_FLAG_RW; 904 break; 905 case 'E': 906 extended_cmd = optarg; 907 open_flag |= EXT2_FLAG_RW; 908 break; 909 case 'f': /* Force */ 910 f_flag = 1; 911 break; 912 case 'g': 913 resgid = strtoul(optarg, &tmp, 0); 914 if (*tmp) { 915 gr = getgrnam(optarg); 916 if (gr == NULL) 917 tmp = optarg; 918 else { 919 resgid = gr->gr_gid; 920 *tmp = 0; 921 } 922 } 923 if (*tmp) { 924 com_err(program_name, 0, 925 _("bad gid/group name - %s"), 926 optarg); 927 usage(); 928 } 929 g_flag = 1; 930 open_flag = EXT2_FLAG_RW; 931 break; 932 case 'i': 933 interval = strtoul(optarg, &tmp, 0); 934 switch (*tmp) { 935 case 's': 936 tmp++; 937 break; 938 case '\0': 939 case 'd': 940 case 'D': /* days */ 941 interval *= 86400; 942 if (*tmp != '\0') 943 tmp++; 944 break; 945 case 'm': 946 case 'M': /* months! */ 947 interval *= 86400 * 30; 948 tmp++; 949 break; 950 case 'w': 951 case 'W': /* weeks */ 952 interval *= 86400 * 7; 953 tmp++; 954 break; 955 } 956 if (*tmp) { 957 com_err(program_name, 0, 958 _("bad interval - %s"), optarg); 959 usage(); 960 } 961 i_flag = 1; 962 open_flag = EXT2_FLAG_RW; 963 break; 964 case 'j': 965 if (!journal_size) 966 journal_size = -1; 967 open_flag = EXT2_FLAG_RW; 968 break; 969 case 'J': 970 parse_journal_opts(optarg); 971 open_flag = EXT2_FLAG_RW; 972 break; 973 case 'l': 974 l_flag = 1; 975 break; 976 case 'L': 977 new_label = optarg; 978 L_flag = 1; 979 open_flag |= EXT2_FLAG_RW | 980 EXT2_FLAG_JOURNAL_DEV_OK; 981 break; 982 case 'm': 983 reserved_ratio = strtod(optarg, &tmp); 984 if (*tmp || reserved_ratio > 50 || 985 reserved_ratio < 0) { 986 com_err(program_name, 0, 987 _("bad reserved block ratio - %s"), 988 optarg); 989 usage(); 990 } 991 m_flag = 1; 992 open_flag = EXT2_FLAG_RW; 993 break; 994 case 'M': 995 new_last_mounted = optarg; 996 M_flag = 1; 997 open_flag = EXT2_FLAG_RW; 998 break; 999 case 'o': 1000 if (mntopts_cmd) { 1001 com_err(program_name, 0, 1002 _("-o may only be specified once")); 1003 usage(); 1004 } 1005 mntopts_cmd = optarg; 1006 open_flag = EXT2_FLAG_RW; 1007 break; 1008 case 'O': 1009 if (features_cmd) { 1010 com_err(program_name, 0, 1011 _("-O may only be specified once")); 1012 usage(); 1013 } 1014 features_cmd = optarg; 1015 open_flag = EXT2_FLAG_RW; 1016 break; 1017 case 'Q': 1018 Q_flag = 1; 1019 parse_quota_opts(optarg); 1020 open_flag = EXT2_FLAG_RW; 1021 break; 1022 case 'r': 1023 reserved_blocks = strtoul(optarg, &tmp, 0); 1024 if (*tmp) { 1025 com_err(program_name, 0, 1026 _("bad reserved blocks count - %s"), 1027 optarg); 1028 usage(); 1029 } 1030 r_flag = 1; 1031 open_flag = EXT2_FLAG_RW; 1032 break; 1033 case 's': /* Deprecated */ 1034 s_flag = atoi(optarg); 1035 open_flag = EXT2_FLAG_RW; 1036 break; 1037 case 'T': 1038 T_flag = 1; 1039 last_check_time = parse_time(optarg); 1040 open_flag = EXT2_FLAG_RW; 1041 break; 1042 case 'u': 1043 resuid = strtoul(optarg, &tmp, 0); 1044 if (*tmp) { 1045 pw = getpwnam(optarg); 1046 if (pw == NULL) 1047 tmp = optarg; 1048 else { 1049 resuid = pw->pw_uid; 1050 *tmp = 0; 1051 } 1052 } 1053 if (*tmp) { 1054 com_err(program_name, 0, 1055 _("bad uid/user name - %s"), 1056 optarg); 1057 usage(); 1058 } 1059 u_flag = 1; 1060 open_flag = EXT2_FLAG_RW; 1061 break; 1062 case 'U': 1063 new_UUID = optarg; 1064 U_flag = 1; 1065 open_flag = EXT2_FLAG_RW | 1066 EXT2_FLAG_JOURNAL_DEV_OK; 1067 break; 1068 case 'I': 1069 new_inode_size = strtoul(optarg, &tmp, 0); 1070 if (*tmp) { 1071 com_err(program_name, 0, 1072 _("bad inode size - %s"), 1073 optarg); 1074 usage(); 1075 } 1076 if (!((new_inode_size & 1077 (new_inode_size - 1)) == 0)) { 1078 com_err(program_name, 0, 1079 _("Inode size must be a " 1080 "power of two- %s"), 1081 optarg); 1082 usage(); 1083 } 1084 open_flag = EXT2_FLAG_RW; 1085 I_flag = 1; 1086 break; 1087 default: 1088 usage(); 1089 } 1090 if (optind < argc - 1 || optind == argc) 1091 usage(); 1092 if (!open_flag && !l_flag) 1093 usage(); 1094 io_options = strchr(argv[optind], '?'); 1095 if (io_options) 1096 *io_options++ = 0; 1097 device_name = blkid_get_devname(NULL, argv[optind], NULL); 1098 if (!device_name) { 1099 com_err(program_name, 0, _("Unable to resolve '%s'"), 1100 argv[optind]); 1101 exit(1); 1102 } 1103} 1104 1105#ifdef CONFIG_BUILD_FINDFS 1106void do_findfs(int argc, char **argv) 1107{ 1108 char *dev; 1109 1110 if ((argc != 2) || 1111 (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) { 1112 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n"); 1113 exit(2); 1114 } 1115 dev = blkid_get_devname(NULL, argv[1], NULL); 1116 if (!dev) { 1117 com_err("findfs", 0, _("Unable to resolve '%s'"), 1118 argv[1]); 1119 exit(1); 1120 } 1121 puts(dev); 1122 exit(0); 1123} 1124#endif 1125 1126static int parse_extended_opts(ext2_filsys fs, const char *opts) 1127{ 1128 char *buf, *token, *next, *p, *arg; 1129 int len, hash_alg; 1130 int r_usage = 0; 1131 1132 len = strlen(opts); 1133 buf = malloc(len+1); 1134 if (!buf) { 1135 fprintf(stderr, 1136 _("Couldn't allocate memory to parse options!\n")); 1137 return 1; 1138 } 1139 strcpy(buf, opts); 1140 for (token = buf; token && *token; token = next) { 1141 p = strchr(token, ','); 1142 next = 0; 1143 if (p) { 1144 *p = 0; 1145 next = p+1; 1146 } 1147 arg = strchr(token, '='); 1148 if (arg) { 1149 *arg = 0; 1150 arg++; 1151 } 1152 if (strcmp(token, "clear-mmp") == 0 || 1153 strcmp(token, "clear_mmp") == 0) { 1154 clear_mmp = 1; 1155 } else if (strcmp(token, "mmp_update_interval") == 0) { 1156 unsigned long interval; 1157 if (!arg) { 1158 r_usage++; 1159 continue; 1160 } 1161 interval = strtoul(arg, &p, 0); 1162 if (*p) { 1163 fprintf(stderr, 1164 _("Invalid mmp_update_interval: %s\n"), 1165 arg); 1166 r_usage++; 1167 continue; 1168 } 1169 if (interval == 0) { 1170 interval = EXT4_MMP_UPDATE_INTERVAL; 1171 } else if (interval > EXT4_MMP_MAX_UPDATE_INTERVAL) { 1172 fprintf(stderr, 1173 _("mmp_update_interval too big: %lu\n"), 1174 interval); 1175 r_usage++; 1176 continue; 1177 } 1178 printf(P_("Setting multiple mount protection update " 1179 "interval to %lu second\n", 1180 "Setting multiple mount protection update " 1181 "interval to %lu seconds\n", interval), 1182 interval); 1183 fs->super->s_mmp_update_interval = interval; 1184 ext2fs_mark_super_dirty(fs); 1185 } else if (!strcmp(token, "test_fs")) { 1186 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS; 1187 printf("Setting test filesystem flag\n"); 1188 ext2fs_mark_super_dirty(fs); 1189 } else if (!strcmp(token, "^test_fs")) { 1190 fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS; 1191 printf("Clearing test filesystem flag\n"); 1192 ext2fs_mark_super_dirty(fs); 1193 } else if (strcmp(token, "stride") == 0) { 1194 if (!arg) { 1195 r_usage++; 1196 continue; 1197 } 1198 stride = strtoul(arg, &p, 0); 1199 if (*p) { 1200 fprintf(stderr, 1201 _("Invalid RAID stride: %s\n"), 1202 arg); 1203 r_usage++; 1204 continue; 1205 } 1206 stride_set = 1; 1207 } else if (strcmp(token, "stripe-width") == 0 || 1208 strcmp(token, "stripe_width") == 0) { 1209 if (!arg) { 1210 r_usage++; 1211 continue; 1212 } 1213 stripe_width = strtoul(arg, &p, 0); 1214 if (*p) { 1215 fprintf(stderr, 1216 _("Invalid RAID stripe-width: %s\n"), 1217 arg); 1218 r_usage++; 1219 continue; 1220 } 1221 stripe_width_set = 1; 1222 } else if (strcmp(token, "hash_alg") == 0 || 1223 strcmp(token, "hash-alg") == 0) { 1224 if (!arg) { 1225 r_usage++; 1226 continue; 1227 } 1228 hash_alg = e2p_string2hash(arg); 1229 if (hash_alg < 0) { 1230 fprintf(stderr, 1231 _("Invalid hash algorithm: %s\n"), 1232 arg); 1233 r_usage++; 1234 continue; 1235 } 1236 fs->super->s_def_hash_version = hash_alg; 1237 printf(_("Setting default hash algorithm " 1238 "to %s (%d)\n"), 1239 arg, hash_alg); 1240 ext2fs_mark_super_dirty(fs); 1241 } else if (!strcmp(token, "mount_opts")) { 1242 if (!arg) { 1243 r_usage++; 1244 continue; 1245 } 1246 if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) { 1247 fprintf(stderr, 1248 "Extended mount options too long\n"); 1249 continue; 1250 } 1251 ext_mount_opts = strdup(arg); 1252 } else 1253 r_usage++; 1254 } 1255 if (r_usage) { 1256 fprintf(stderr, _("\nBad options specified.\n\n" 1257 "Extended options are separated by commas, " 1258 "and may take an argument which\n" 1259 "\tis set off by an equals ('=') sign.\n\n" 1260 "Valid extended options are:\n" 1261 "\tclear_mmp\n" 1262 "\thash_alg=<hash algorithm>\n" 1263 "\tmount_opts=<extended default mount options>\n" 1264 "\tstride=<RAID per-disk chunk size in blocks>\n" 1265 "\tstripe_width=<RAID stride*data disks in blocks>\n" 1266 "\ttest_fs\n" 1267 "\t^test_fs\n")); 1268 free(buf); 1269 return 1; 1270 } 1271 free(buf); 1272 1273 return 0; 1274} 1275 1276/* 1277 * Fill in the block bitmap bmap with the information regarding the 1278 * blocks to be moved 1279 */ 1280static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp, 1281 ext2fs_block_bitmap bmap) 1282{ 1283 dgrp_t i; 1284 int retval; 1285 ext2_badblocks_list bb_list = 0; 1286 blk64_t j, needed_blocks = 0; 1287 blk64_t start_blk, end_blk; 1288 1289 retval = ext2fs_read_bb_inode(fs, &bb_list); 1290 if (retval) 1291 return retval; 1292 1293 for (i = 0; i < fs->group_desc_count; i++) { 1294 start_blk = ext2fs_inode_table_loc(fs, i) + 1295 fs->inode_blocks_per_group; 1296 1297 end_blk = ext2fs_inode_table_loc(fs, i) + 1298 new_ino_blks_per_grp; 1299 1300 for (j = start_blk; j < end_blk; j++) { 1301 if (ext2fs_test_block_bitmap2(fs->block_map, j)) { 1302 /* 1303 * IF the block is a bad block we fail 1304 */ 1305 if (ext2fs_badblocks_list_test(bb_list, j)) { 1306 ext2fs_badblocks_list_free(bb_list); 1307 return ENOSPC; 1308 } 1309 1310 ext2fs_mark_block_bitmap2(bmap, j); 1311 } else { 1312 /* 1313 * We are going to use this block for 1314 * inode table. So mark them used. 1315 */ 1316 ext2fs_mark_block_bitmap2(fs->block_map, j); 1317 } 1318 } 1319 needed_blocks += end_blk - start_blk; 1320 } 1321 1322 ext2fs_badblocks_list_free(bb_list); 1323 if (needed_blocks > ext2fs_free_blocks_count(fs->super)) 1324 return ENOSPC; 1325 1326 return 0; 1327} 1328 1329static int ext2fs_is_meta_block(ext2_filsys fs, blk_t blk) 1330{ 1331 dgrp_t group; 1332 group = ext2fs_group_of_blk(fs, blk); 1333 if (ext2fs_block_bitmap_loc(fs, group) == blk) 1334 return 1; 1335 if (ext2fs_inode_bitmap_loc(fs, group) == blk) 1336 return 1; 1337 return 0; 1338} 1339 1340static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk_t blk) 1341{ 1342 blk_t start_blk, end_blk; 1343 start_blk = fs->super->s_first_data_block + 1344 EXT2_BLOCKS_PER_GROUP(fs->super) * group; 1345 /* 1346 * We cannot get new block beyond end_blk for for the last block group 1347 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group 1348 */ 1349 end_blk = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super); 1350 if (blk >= start_blk && blk <= end_blk) 1351 return 1; 1352 return 0; 1353} 1354 1355static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap) 1356{ 1357 1358 char *buf; 1359 dgrp_t group = 0; 1360 errcode_t retval; 1361 int meta_data = 0; 1362 blk64_t blk, new_blk, goal; 1363 struct blk_move *bmv; 1364 1365 retval = ext2fs_get_mem(fs->blocksize, &buf); 1366 if (retval) 1367 return retval; 1368 1369 for (new_blk = blk = fs->super->s_first_data_block; 1370 blk < ext2fs_blocks_count(fs->super); blk++) { 1371 if (!ext2fs_test_block_bitmap2(bmap, blk)) 1372 continue; 1373 1374 if (ext2fs_is_meta_block(fs, blk)) { 1375 /* 1376 * If the block is mapping a fs meta data block 1377 * like group desc/block bitmap/inode bitmap. We 1378 * should find a block in the same group and fix 1379 * the respective fs metadata pointers. Otherwise 1380 * fail 1381 */ 1382 group = ext2fs_group_of_blk(fs, blk); 1383 goal = ext2fs_group_first_block2(fs, group); 1384 meta_data = 1; 1385 1386 } else { 1387 goal = new_blk; 1388 } 1389 retval = ext2fs_new_block2(fs, goal, NULL, &new_blk); 1390 if (retval) 1391 goto err_out; 1392 1393 /* new fs meta data block should be in the same group */ 1394 if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) { 1395 retval = ENOSPC; 1396 goto err_out; 1397 } 1398 1399 /* Mark this block as allocated */ 1400 ext2fs_mark_block_bitmap2(fs->block_map, new_blk); 1401 1402 /* Add it to block move list */ 1403 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv); 1404 if (retval) 1405 goto err_out; 1406 1407 bmv->old_loc = blk; 1408 bmv->new_loc = new_blk; 1409 1410 list_add(&(bmv->list), &blk_move_list); 1411 1412 retval = io_channel_read_blk64(fs->io, blk, 1, buf); 1413 if (retval) 1414 goto err_out; 1415 1416 retval = io_channel_write_blk64(fs->io, new_blk, 1, buf); 1417 if (retval) 1418 goto err_out; 1419 } 1420 1421err_out: 1422 ext2fs_free_mem(&buf); 1423 return retval; 1424} 1425 1426static blk64_t translate_block(blk64_t blk) 1427{ 1428 struct list_head *entry; 1429 struct blk_move *bmv; 1430 1431 list_for_each(entry, &blk_move_list) { 1432 bmv = list_entry(entry, struct blk_move, list); 1433 if (bmv->old_loc == blk) 1434 return bmv->new_loc; 1435 } 1436 1437 return 0; 1438} 1439 1440static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)), 1441 blk64_t *block_nr, 1442 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 1443 blk64_t ref_block EXT2FS_ATTR((unused)), 1444 int ref_offset EXT2FS_ATTR((unused)), 1445 void *priv_data) 1446{ 1447 int ret = 0; 1448 blk64_t new_blk; 1449 ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data; 1450 1451 if (!ext2fs_test_block_bitmap2(bmap, *block_nr)) 1452 return 0; 1453 new_blk = translate_block(*block_nr); 1454 if (new_blk) { 1455 *block_nr = new_blk; 1456 /* 1457 * This will force the ext2fs_write_inode in the iterator 1458 */ 1459 ret |= BLOCK_CHANGED; 1460 } 1461 1462 return ret; 1463} 1464 1465static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap) 1466{ 1467 errcode_t retval = 0; 1468 ext2_ino_t ino; 1469 blk64_t blk; 1470 char *block_buf = 0; 1471 struct ext2_inode inode; 1472 ext2_inode_scan scan = NULL; 1473 1474 retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf); 1475 if (retval) 1476 return retval; 1477 1478 retval = ext2fs_open_inode_scan(fs, 0, &scan); 1479 if (retval) 1480 goto err_out; 1481 1482 while (1) { 1483 retval = ext2fs_get_next_inode(scan, &ino, &inode); 1484 if (retval) 1485 goto err_out; 1486 1487 if (!ino) 1488 break; 1489 1490 if (inode.i_links_count == 0) 1491 continue; /* inode not in use */ 1492 1493 /* FIXME!! 1494 * If we end up modifying the journal inode 1495 * the sb->s_jnl_blocks will differ. But a 1496 * subsequent e2fsck fixes that. 1497 * Do we need to fix this ?? 1498 */ 1499 1500 if (ext2fs_file_acl_block(fs, &inode) && 1501 ext2fs_test_block_bitmap2(bmap, 1502 ext2fs_file_acl_block(fs, &inode))) { 1503 blk = translate_block(ext2fs_file_acl_block(fs, 1504 &inode)); 1505 if (!blk) 1506 continue; 1507 1508 ext2fs_file_acl_block_set(fs, &inode, blk); 1509 1510 /* 1511 * Write the inode to disk so that inode table 1512 * resizing can work 1513 */ 1514 retval = ext2fs_write_inode(fs, ino, &inode); 1515 if (retval) 1516 goto err_out; 1517 } 1518 1519 if (!ext2fs_inode_has_valid_blocks2(fs, &inode)) 1520 continue; 1521 1522 retval = ext2fs_block_iterate3(fs, ino, 0, block_buf, 1523 process_block, bmap); 1524 if (retval) 1525 goto err_out; 1526 1527 } 1528 1529err_out: 1530 ext2fs_free_mem(&block_buf); 1531 1532 return retval; 1533} 1534 1535/* 1536 * We need to scan for inode and block bitmaps that may need to be 1537 * moved. This can take place if the filesystem was formatted for 1538 * RAID arrays using the mke2fs's extended option "stride". 1539 */ 1540static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap) 1541{ 1542 dgrp_t i; 1543 blk_t blk, new_blk; 1544 1545 for (i = 0; i < fs->group_desc_count; i++) { 1546 blk = ext2fs_block_bitmap_loc(fs, i); 1547 if (ext2fs_test_block_bitmap2(bmap, blk)) { 1548 new_blk = translate_block(blk); 1549 if (!new_blk) 1550 continue; 1551 ext2fs_block_bitmap_loc_set(fs, i, new_blk); 1552 } 1553 1554 blk = ext2fs_inode_bitmap_loc(fs, i); 1555 if (ext2fs_test_block_bitmap2(bmap, blk)) { 1556 new_blk = translate_block(blk); 1557 if (!new_blk) 1558 continue; 1559 ext2fs_inode_bitmap_loc_set(fs, i, new_blk); 1560 } 1561 } 1562 return 0; 1563} 1564 1565static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size) 1566{ 1567 dgrp_t i; 1568 blk64_t blk; 1569 errcode_t retval; 1570 int new_ino_blks_per_grp; 1571 unsigned int j; 1572 char *old_itable = NULL, *new_itable = NULL; 1573 char *tmp_old_itable = NULL, *tmp_new_itable = NULL; 1574 unsigned long old_ino_size; 1575 int old_itable_size, new_itable_size; 1576 1577 old_itable_size = fs->inode_blocks_per_group * fs->blocksize; 1578 old_ino_size = EXT2_INODE_SIZE(fs->super); 1579 1580 new_ino_blks_per_grp = ext2fs_div_ceil( 1581 EXT2_INODES_PER_GROUP(fs->super) * 1582 new_ino_size, 1583 fs->blocksize); 1584 1585 new_itable_size = new_ino_blks_per_grp * fs->blocksize; 1586 1587 retval = ext2fs_get_mem(old_itable_size, &old_itable); 1588 if (retval) 1589 return retval; 1590 1591 retval = ext2fs_get_mem(new_itable_size, &new_itable); 1592 if (retval) 1593 goto err_out; 1594 1595 tmp_old_itable = old_itable; 1596 tmp_new_itable = new_itable; 1597 1598 for (i = 0; i < fs->group_desc_count; i++) { 1599 blk = ext2fs_inode_table_loc(fs, i); 1600 retval = io_channel_read_blk64(fs->io, blk, 1601 fs->inode_blocks_per_group, old_itable); 1602 if (retval) 1603 goto err_out; 1604 1605 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) { 1606 memcpy(new_itable, old_itable, old_ino_size); 1607 1608 memset(new_itable+old_ino_size, 0, 1609 new_ino_size - old_ino_size); 1610 1611 new_itable += new_ino_size; 1612 old_itable += old_ino_size; 1613 } 1614 1615 /* reset the pointer */ 1616 old_itable = tmp_old_itable; 1617 new_itable = tmp_new_itable; 1618 1619 retval = io_channel_write_blk64(fs->io, blk, 1620 new_ino_blks_per_grp, new_itable); 1621 if (retval) 1622 goto err_out; 1623 } 1624 1625 /* Update the meta data */ 1626 fs->inode_blocks_per_group = new_ino_blks_per_grp; 1627 fs->super->s_inode_size = new_ino_size; 1628 1629err_out: 1630 if (old_itable) 1631 ext2fs_free_mem(&old_itable); 1632 1633 if (new_itable) 1634 ext2fs_free_mem(&new_itable); 1635 1636 return retval; 1637} 1638 1639static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs) 1640{ 1641 blk64_t blk; 1642 ext2_ino_t ino; 1643 unsigned int group = 0; 1644 unsigned int count = 0; 1645 int total_free = 0; 1646 int group_free = 0; 1647 1648 /* 1649 * First calculate the block statistics 1650 */ 1651 for (blk = fs->super->s_first_data_block; 1652 blk < ext2fs_blocks_count(fs->super); blk++) { 1653 if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) { 1654 group_free++; 1655 total_free++; 1656 } 1657 count++; 1658 if ((count == fs->super->s_blocks_per_group) || 1659 (blk == ext2fs_blocks_count(fs->super)-1)) { 1660 ext2fs_bg_free_blocks_count_set(fs, group++, 1661 group_free); 1662 count = 0; 1663 group_free = 0; 1664 } 1665 } 1666 total_free = EXT2FS_C2B(fs, total_free); 1667 ext2fs_free_blocks_count_set(fs->super, total_free); 1668 1669 /* 1670 * Next, calculate the inode statistics 1671 */ 1672 group_free = 0; 1673 total_free = 0; 1674 count = 0; 1675 group = 0; 1676 1677 /* Protect loop from wrap-around if s_inodes_count maxed */ 1678 for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) { 1679 if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) { 1680 group_free++; 1681 total_free++; 1682 } 1683 count++; 1684 if ((count == fs->super->s_inodes_per_group) || 1685 (ino == fs->super->s_inodes_count)) { 1686 ext2fs_bg_free_inodes_count_set(fs, group++, 1687 group_free); 1688 count = 0; 1689 group_free = 0; 1690 } 1691 } 1692 fs->super->s_free_inodes_count = total_free; 1693 ext2fs_mark_super_dirty(fs); 1694 return 0; 1695} 1696 1697#define list_for_each_safe(pos, pnext, head) \ 1698 for (pos = (head)->next, pnext = pos->next; pos != (head); \ 1699 pos = pnext, pnext = pos->next) 1700 1701static void free_blk_move_list(void) 1702{ 1703 struct list_head *entry, *tmp; 1704 struct blk_move *bmv; 1705 1706 list_for_each_safe(entry, tmp, &blk_move_list) { 1707 bmv = list_entry(entry, struct blk_move, list); 1708 list_del(entry); 1709 ext2fs_free_mem(&bmv); 1710 } 1711 return; 1712} 1713 1714static int resize_inode(ext2_filsys fs, unsigned long new_size) 1715{ 1716 errcode_t retval; 1717 int new_ino_blks_per_grp; 1718 ext2fs_block_bitmap bmap; 1719 1720 retval = ext2fs_read_inode_bitmap(fs); 1721 if (retval) { 1722 fputs(_("Failed to read inode bitmap\n"), stderr); 1723 return retval; 1724 } 1725 retval = ext2fs_read_block_bitmap(fs); 1726 if (retval) { 1727 fputs(_("Failed to read block bitmap\n"), stderr); 1728 return retval; 1729 } 1730 INIT_LIST_HEAD(&blk_move_list); 1731 1732 1733 new_ino_blks_per_grp = ext2fs_div_ceil( 1734 EXT2_INODES_PER_GROUP(fs->super)* 1735 new_size, 1736 fs->blocksize); 1737 1738 /* We may change the file system. 1739 * Mark the file system as invalid so that 1740 * the user is prompted to run fsck. 1741 */ 1742 fs->super->s_state &= ~EXT2_VALID_FS; 1743 1744 retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"), 1745 &bmap); 1746 if (retval) { 1747 fputs(_("Failed to allocate block bitmap when " 1748 "increasing inode size\n"), stderr); 1749 return retval; 1750 } 1751 retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap); 1752 if (retval) { 1753 fputs(_("Not enough space to increase inode size \n"), stderr); 1754 goto err_out; 1755 } 1756 retval = move_block(fs, bmap); 1757 if (retval) { 1758 fputs(_("Failed to relocate blocks during inode resize \n"), 1759 stderr); 1760 goto err_out; 1761 } 1762 retval = inode_scan_and_fix(fs, bmap); 1763 if (retval) 1764 goto err_out_undo; 1765 1766 retval = group_desc_scan_and_fix(fs, bmap); 1767 if (retval) 1768 goto err_out_undo; 1769 1770 retval = expand_inode_table(fs, new_size); 1771 if (retval) 1772 goto err_out_undo; 1773 1774 ext2fs_calculate_summary_stats(fs); 1775 1776 fs->super->s_state |= EXT2_VALID_FS; 1777 /* mark super block and block bitmap as dirty */ 1778 ext2fs_mark_super_dirty(fs); 1779 ext2fs_mark_bb_dirty(fs); 1780 1781err_out: 1782 free_blk_move_list(); 1783 ext2fs_free_block_bitmap(bmap); 1784 1785 return retval; 1786 1787err_out_undo: 1788 free_blk_move_list(); 1789 ext2fs_free_block_bitmap(bmap); 1790 fputs(_("Error in resizing the inode size.\n" 1791 "Run e2undo to undo the " 1792 "file system changes. \n"), stderr); 1793 1794 return retval; 1795} 1796 1797static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr) 1798{ 1799 errcode_t retval = 0; 1800 const char *tdb_dir; 1801 char *tdb_file; 1802 char *dev_name, *tmp_name; 1803 1804#if 0 /* FIXME!! */ 1805 /* 1806 * Configuration via a conf file would be 1807 * nice 1808 */ 1809 profile_get_string(profile, "scratch_files", 1810 "directory", 0, 0, 1811 &tdb_dir); 1812#endif 1813 tmp_name = strdup(name); 1814 if (!tmp_name) { 1815 alloc_fn_fail: 1816 com_err(program_name, ENOMEM, 1817 _("Couldn't allocate memory for tdb filename\n")); 1818 return ENOMEM; 1819 } 1820 dev_name = basename(tmp_name); 1821 1822 tdb_dir = getenv("E2FSPROGS_UNDO_DIR"); 1823 if (!tdb_dir) 1824 tdb_dir = "/var/lib/e2fsprogs"; 1825 1826 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || 1827 access(tdb_dir, W_OK)) 1828 return 0; 1829 1830 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1); 1831 if (!tdb_file) 1832 goto alloc_fn_fail; 1833 sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name); 1834 1835 if (!access(tdb_file, F_OK)) { 1836 if (unlink(tdb_file) < 0) { 1837 retval = errno; 1838 com_err(program_name, retval, 1839 _("while trying to delete %s"), 1840 tdb_file); 1841 free(tdb_file); 1842 return retval; 1843 } 1844 } 1845 1846 set_undo_io_backing_manager(*io_ptr); 1847 *io_ptr = undo_io_manager; 1848 set_undo_io_backup_file(tdb_file); 1849 printf(_("To undo the tune2fs operation please run " 1850 "the command\n e2undo %s %s\n\n"), 1851 tdb_file, name); 1852 free(tdb_file); 1853 free(tmp_name); 1854 return retval; 1855} 1856 1857int main(int argc, char **argv) 1858{ 1859 errcode_t retval; 1860 ext2_filsys fs; 1861 struct ext2_super_block *sb; 1862 io_manager io_ptr, io_ptr_orig = NULL; 1863 int rc = 0; 1864 1865#ifdef ENABLE_NLS 1866 setlocale(LC_MESSAGES, ""); 1867 setlocale(LC_CTYPE, ""); 1868 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 1869 textdomain(NLS_CAT_NAME); 1870 set_com_err_gettext(gettext); 1871#endif 1872 if (argc && *argv) 1873 program_name = *argv; 1874 add_error_table(&et_ext2_error_table); 1875 1876#ifdef CONFIG_BUILD_FINDFS 1877 if (strcmp(get_progname(argv[0]), "findfs") == 0) 1878 do_findfs(argc, argv); 1879#endif 1880 if (strcmp(get_progname(argv[0]), "e2label") == 0) 1881 parse_e2label_options(argc, argv); 1882 else 1883 parse_tune2fs_options(argc, argv); 1884 1885#ifdef CONFIG_TESTIO_DEBUG 1886 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) { 1887 io_ptr = test_io_manager; 1888 test_io_backing_manager = unix_io_manager; 1889 } else 1890#endif 1891 io_ptr = unix_io_manager; 1892 1893retry_open: 1894 if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag) 1895 open_flag |= EXT2_FLAG_SKIP_MMP; 1896 1897 open_flag |= EXT2_FLAG_64BITS; 1898 1899 /* keep the filesystem struct around to dump MMP data */ 1900 open_flag |= EXT2_FLAG_NOFREE_ON_ERROR; 1901 1902 retval = ext2fs_open2(device_name, io_options, open_flag, 1903 0, 0, io_ptr, &fs); 1904 if (retval) { 1905 com_err(program_name, retval, 1906 _("while trying to open %s"), 1907 device_name); 1908 if (retval == EXT2_ET_MMP_FSCK_ON || 1909 retval == EXT2_ET_MMP_UNKNOWN_SEQ) 1910 dump_mmp_msg(fs->mmp_buf, 1911 _("If you are sure the filesystem " 1912 "is not in use on any node, run:\n" 1913 "'tune2fs -f -E clear_mmp {device}'\n")); 1914 else if (retval == EXT2_ET_MMP_FAILED) 1915 dump_mmp_msg(fs->mmp_buf, NULL); 1916 else if (retval == EXT2_ET_MMP_MAGIC_INVALID) 1917 fprintf(stderr, 1918 _("MMP block magic is bad. Try to fix it by " 1919 "running:\n'e2fsck -f %s'\n"), device_name); 1920 else if (retval != EXT2_ET_MMP_FAILED) 1921 fprintf(stderr, 1922 _("Couldn't find valid filesystem superblock.\n")); 1923 1924 ext2fs_free(fs); 1925 exit(1); 1926 } 1927 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE; 1928 1929 if (I_flag && !io_ptr_orig) { 1930 /* 1931 * Check the inode size is right so we can issue an 1932 * error message and bail before setting up the tdb 1933 * file. 1934 */ 1935 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) { 1936 fprintf(stderr, _("The inode size is already %lu\n"), 1937 new_inode_size); 1938 rc = 1; 1939 goto closefs; 1940 } 1941 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) { 1942 fprintf(stderr, _("Shrinking the inode size is " 1943 "not supported\n")); 1944 rc = 1; 1945 goto closefs; 1946 } 1947 1948 /* 1949 * If inode resize is requested use the 1950 * Undo I/O manager 1951 */ 1952 io_ptr_orig = io_ptr; 1953 retval = tune2fs_setup_tdb(device_name, &io_ptr); 1954 if (retval) { 1955 rc = 1; 1956 goto closefs; 1957 } 1958 if (io_ptr != io_ptr_orig) { 1959 ext2fs_close(fs); 1960 goto retry_open; 1961 } 1962 } 1963 1964 sb = fs->super; 1965 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; 1966 1967 if (print_label) { 1968 /* For e2label emulation */ 1969 printf("%.*s\n", (int) sizeof(sb->s_volume_name), 1970 sb->s_volume_name); 1971 remove_error_table(&et_ext2_error_table); 1972 goto closefs; 1973 } 1974 1975 retval = ext2fs_check_if_mounted(device_name, &mount_flags); 1976 if (retval) { 1977 com_err("ext2fs_check_if_mount", retval, 1978 _("while determining whether %s is mounted."), 1979 device_name); 1980 rc = 1; 1981 goto closefs; 1982 } 1983 /* Normally we only need to write out the superblock */ 1984 fs->flags |= EXT2_FLAG_SUPER_ONLY; 1985 1986 if (c_flag) { 1987 sb->s_max_mnt_count = max_mount_count; 1988 ext2fs_mark_super_dirty(fs); 1989 printf(_("Setting maximal mount count to %d\n"), 1990 max_mount_count); 1991 } 1992 if (C_flag) { 1993 sb->s_mnt_count = mount_count; 1994 ext2fs_mark_super_dirty(fs); 1995 printf(_("Setting current mount count to %d\n"), mount_count); 1996 } 1997 if (e_flag) { 1998 sb->s_errors = errors; 1999 ext2fs_mark_super_dirty(fs); 2000 printf(_("Setting error behavior to %d\n"), errors); 2001 } 2002 if (g_flag) { 2003 sb->s_def_resgid = resgid; 2004 ext2fs_mark_super_dirty(fs); 2005 printf(_("Setting reserved blocks gid to %lu\n"), resgid); 2006 } 2007 if (i_flag) { 2008 if (interval >= (1ULL << 32)) { 2009 com_err(program_name, 0, 2010 _("interval between checks is too big (%lu)"), 2011 interval); 2012 rc = 1; 2013 goto closefs; 2014 } 2015 sb->s_checkinterval = interval; 2016 ext2fs_mark_super_dirty(fs); 2017 printf(_("Setting interval between checks to %lu seconds\n"), 2018 interval); 2019 } 2020 if (m_flag) { 2021 ext2fs_r_blocks_count_set(sb, reserved_ratio * 2022 ext2fs_blocks_count(sb) / 100.0); 2023 ext2fs_mark_super_dirty(fs); 2024 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"), 2025 reserved_ratio, ext2fs_r_blocks_count(sb)); 2026 } 2027 if (r_flag) { 2028 if (reserved_blocks > ext2fs_blocks_count(sb)/2) { 2029 com_err(program_name, 0, 2030 _("reserved blocks count is too big (%llu)"), 2031 reserved_blocks); 2032 rc = 1; 2033 goto closefs; 2034 } 2035 ext2fs_r_blocks_count_set(sb, reserved_blocks); 2036 ext2fs_mark_super_dirty(fs); 2037 printf(_("Setting reserved blocks count to %llu\n"), 2038 reserved_blocks); 2039 } 2040 if (s_flag == 1) { 2041 if (sb->s_feature_ro_compat & 2042 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) 2043 fputs(_("\nThe filesystem already has sparse " 2044 "superblocks.\n"), stderr); 2045 else { 2046 sb->s_feature_ro_compat |= 2047 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 2048 sb->s_state &= ~EXT2_VALID_FS; 2049 ext2fs_mark_super_dirty(fs); 2050 printf(_("\nSparse superblock flag set. %s"), 2051 _(please_fsck)); 2052 } 2053 } 2054 if (s_flag == 0) { 2055 fputs(_("\nClearing the sparse superflag not supported.\n"), 2056 stderr); 2057 rc = 1; 2058 goto closefs; 2059 } 2060 if (T_flag) { 2061 sb->s_lastcheck = last_check_time; 2062 ext2fs_mark_super_dirty(fs); 2063 printf(_("Setting time filesystem last checked to %s\n"), 2064 ctime(&last_check_time)); 2065 } 2066 if (u_flag) { 2067 sb->s_def_resuid = resuid; 2068 ext2fs_mark_super_dirty(fs); 2069 printf(_("Setting reserved blocks uid to %lu\n"), resuid); 2070 } 2071 if (L_flag) { 2072 if (strlen(new_label) > sizeof(sb->s_volume_name)) 2073 fputs(_("Warning: label too long, truncating.\n"), 2074 stderr); 2075 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name)); 2076 strncpy(sb->s_volume_name, new_label, 2077 sizeof(sb->s_volume_name)); 2078 ext2fs_mark_super_dirty(fs); 2079 } 2080 if (M_flag) { 2081 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted)); 2082 strncpy(sb->s_last_mounted, new_last_mounted, 2083 sizeof(sb->s_last_mounted)); 2084 ext2fs_mark_super_dirty(fs); 2085 } 2086 if (mntopts_cmd) { 2087 rc = update_mntopts(fs, mntopts_cmd); 2088 if (rc) 2089 goto closefs; 2090 } 2091 if (features_cmd) { 2092 rc = update_feature_set(fs, features_cmd); 2093 if (rc) 2094 goto closefs; 2095 } 2096 if (extended_cmd) { 2097 rc = parse_extended_opts(fs, extended_cmd); 2098 if (rc) 2099 goto closefs; 2100 if (clear_mmp && !f_flag) { 2101 fputs(_("Error in using clear_mmp. " 2102 "It must be used with -f\n"), 2103 stderr); 2104 goto closefs; 2105 } 2106 } 2107 if (clear_mmp) { 2108 rc = ext2fs_mmp_clear(fs); 2109 goto closefs; 2110 } 2111 if (journal_size || journal_device) { 2112 rc = add_journal(fs); 2113 if (rc) 2114 goto closefs; 2115 } 2116 2117 if (Q_flag) { 2118 if (mount_flags & EXT2_MF_MOUNTED) { 2119 fputs(_("The quota feature may only be changed when " 2120 "the filesystem is unmounted.\n"), stderr); 2121 rc = 1; 2122 goto closefs; 2123 } 2124 handle_quota_options(fs); 2125 } 2126 2127 if (U_flag) { 2128 int set_csum = 0; 2129 dgrp_t i; 2130 2131 if (sb->s_feature_ro_compat & 2132 EXT4_FEATURE_RO_COMPAT_GDT_CSUM) { 2133 /* 2134 * Determine if the block group checksums are 2135 * correct so we know whether or not to set 2136 * them later on. 2137 */ 2138 for (i = 0; i < fs->group_desc_count; i++) 2139 if (!ext2fs_group_desc_csum_verify(fs, i)) 2140 break; 2141 if (i >= fs->group_desc_count) 2142 set_csum = 1; 2143 } 2144 if ((strcasecmp(new_UUID, "null") == 0) || 2145 (strcasecmp(new_UUID, "clear") == 0)) { 2146 uuid_clear(sb->s_uuid); 2147 } else if (strcasecmp(new_UUID, "time") == 0) { 2148 uuid_generate_time(sb->s_uuid); 2149 } else if (strcasecmp(new_UUID, "random") == 0) { 2150 uuid_generate(sb->s_uuid); 2151 } else if (uuid_parse(new_UUID, sb->s_uuid)) { 2152 com_err(program_name, 0, _("Invalid UUID format\n")); 2153 rc = 1; 2154 goto closefs; 2155 } 2156 if (set_csum) { 2157 for (i = 0; i < fs->group_desc_count; i++) 2158 ext2fs_group_desc_csum_set(fs, i); 2159 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 2160 } 2161 ext2fs_mark_super_dirty(fs); 2162 } 2163 if (I_flag) { 2164 if (mount_flags & EXT2_MF_MOUNTED) { 2165 fputs(_("The inode size may only be " 2166 "changed when the filesystem is " 2167 "unmounted.\n"), stderr); 2168 rc = 1; 2169 goto closefs; 2170 } 2171 if (fs->super->s_feature_incompat & 2172 EXT4_FEATURE_INCOMPAT_FLEX_BG) { 2173 fputs(_("Changing the inode size not supported for " 2174 "filesystems with the flex_bg\n" 2175 "feature enabled.\n"), 2176 stderr); 2177 rc = 1; 2178 goto closefs; 2179 } 2180 /* 2181 * We want to update group descriptor also 2182 * with the new free inode count 2183 */ 2184 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 2185 if (resize_inode(fs, new_inode_size) == 0) { 2186 printf(_("Setting inode size %lu\n"), 2187 new_inode_size); 2188 } else { 2189 printf(_("Failed to change inode size\n")); 2190 rc = 1; 2191 goto closefs; 2192 } 2193 } 2194 2195 if (l_flag) 2196 list_super(sb); 2197 if (stride_set) { 2198 sb->s_raid_stride = stride; 2199 ext2fs_mark_super_dirty(fs); 2200 printf(_("Setting stride size to %d\n"), stride); 2201 } 2202 if (stripe_width_set) { 2203 sb->s_raid_stripe_width = stripe_width; 2204 ext2fs_mark_super_dirty(fs); 2205 printf(_("Setting stripe width to %d\n"), stripe_width); 2206 } 2207 if (ext_mount_opts) { 2208 strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts, 2209 sizeof(fs->super->s_mount_opts)); 2210 fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0; 2211 ext2fs_mark_super_dirty(fs); 2212 printf(_("Setting extended default mount options to '%s'\n"), 2213 ext_mount_opts); 2214 free(ext_mount_opts); 2215 } 2216 free(device_name); 2217 remove_error_table(&et_ext2_error_table); 2218 2219closefs: 2220 if (rc) { 2221 ext2fs_mmp_stop(fs); 2222 exit(1); 2223 } 2224 2225 return (ext2fs_close(fs) ? 1 : 0); 2226} 2227