tune2fs.c revision 4dbfd79d1458ce1259b951377e341aeb6197f8c1
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 dgrp_t i; 379 int type_err; 380 unsigned int mask_err; 381 382#define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \ 383 ((&sb->s_feature_compat)[(type)] & (mask))) 384#define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \ 385 !((&sb->s_feature_compat)[(type)] & (mask))) 386#define FEATURE_CHANGED(type, mask) ((mask) & \ 387 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)])) 388 389 old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat; 390 old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat; 391 old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat; 392 393 if (e2p_edit_feature2(features, &sb->s_feature_compat, 394 ok_features, clear_ok_features, 395 &type_err, &mask_err)) { 396 if (!mask_err) 397 fprintf(stderr, 398 _("Invalid filesystem option set: %s\n"), 399 features); 400 else if (type_err & E2P_FEATURE_NEGATE_FLAG) 401 fprintf(stderr, _("Clearing filesystem feature '%s' " 402 "not supported.\n"), 403 e2p_feature2string(type_err & 404 E2P_FEATURE_TYPE_MASK, 405 mask_err)); 406 else 407 fprintf(stderr, _("Setting filesystem feature '%s' " 408 "not supported.\n"), 409 e2p_feature2string(type_err, mask_err)); 410 return 1; 411 } 412 413 if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 414 if ((mount_flags & EXT2_MF_MOUNTED) && 415 !(mount_flags & EXT2_MF_READONLY)) { 416 fputs(_("The has_journal feature may only be " 417 "cleared when the filesystem is\n" 418 "unmounted or mounted " 419 "read-only.\n"), stderr); 420 return 1; 421 } 422 if (sb->s_feature_incompat & 423 EXT3_FEATURE_INCOMPAT_RECOVER) { 424 fputs(_("The needs_recovery flag is set. " 425 "Please run e2fsck before clearing\n" 426 "the has_journal flag.\n"), stderr); 427 return 1; 428 } 429 if (sb->s_journal_inum) { 430 if (remove_journal_inode(fs)) 431 return 1; 432 } 433 if (sb->s_journal_dev) { 434 if (remove_journal_device(fs)) 435 return 1; 436 } 437 } 438 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) { 439 int error; 440 441 if ((mount_flags & EXT2_MF_MOUNTED) || 442 (mount_flags & EXT2_MF_READONLY)) { 443 fputs(_("The multiple mount protection feature can't\n" 444 "be set if the filesystem is mounted or\n" 445 "read-only.\n"), stderr); 446 return 1; 447 } 448 449 error = ext2fs_mmp_init(fs); 450 if (error) { 451 fputs(_("\nError while enabling multiple mount " 452 "protection feature."), stderr); 453 return 1; 454 } 455 456 /* 457 * We want to update group desc with the new free blocks count 458 */ 459 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 460 461 printf(_("Multiple mount protection has been enabled " 462 "with update interval %ds.\n"), 463 sb->s_mmp_update_interval); 464 } 465 466 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) { 467 int error; 468 469 if (mount_flags & EXT2_MF_READONLY) { 470 fputs(_("The multiple mount protection feature cannot\n" 471 "be disabled if the filesystem is readonly.\n"), 472 stderr); 473 return 1; 474 } 475 476 error = ext2fs_read_bitmaps(fs); 477 if (error) { 478 fputs(_("Error while reading bitmaps\n"), stderr); 479 return 1; 480 } 481 482 error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL); 483 if (error) { 484 struct mmp_struct *mmp_cmp = fs->mmp_cmp; 485 486 if (error == EXT2_ET_MMP_MAGIC_INVALID) 487 printf(_("Magic number in MMP block does not " 488 "match. expected: %x, actual: %x\n"), 489 EXT4_MMP_MAGIC, mmp_cmp->mmp_magic); 490 else 491 com_err(program_name, error, 492 _("while reading MMP block.")); 493 goto mmp_error; 494 } 495 496 /* We need to force out the group descriptors as well */ 497 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 498 ext2fs_block_alloc_stats2(fs, sb->s_mmp_block, -1); 499mmp_error: 500 sb->s_mmp_block = 0; 501 sb->s_mmp_update_interval = 0; 502 } 503 504 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 505 /* 506 * If adding a journal flag, let the create journal 507 * code below handle setting the flag and creating the 508 * journal. We supply a default size if necessary. 509 */ 510 if (!journal_size) 511 journal_size = -1; 512 sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; 513 } 514 515 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) { 516 if (!sb->s_def_hash_version) 517 sb->s_def_hash_version = EXT2_HASH_HALF_MD4; 518 if (uuid_is_null((unsigned char *) sb->s_hash_seed)) 519 uuid_generate((unsigned char *) sb->s_hash_seed); 520 } 521 522 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) { 523 if (ext2fs_check_desc(fs)) { 524 fputs(_("Clearing the flex_bg flag would " 525 "cause the the filesystem to be\n" 526 "inconsistent.\n"), stderr); 527 return 1; 528 } 529 } 530 531 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 532 EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) { 533 if ((mount_flags & EXT2_MF_MOUNTED) && 534 !(mount_flags & EXT2_MF_READONLY)) { 535 fputs(_("The huge_file feature may only be " 536 "cleared when the filesystem is\n" 537 "unmounted or mounted " 538 "read-only.\n"), stderr); 539 return 1; 540 } 541 } 542 543 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, 544 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) { 545 for (i = 0; i < fs->group_desc_count; i++) { 546 gd = ext2fs_group_desc(fs, fs->group_desc, i); 547 gd->bg_itable_unused = 0; 548 gd->bg_flags = EXT2_BG_INODE_ZEROED; 549 ext2fs_group_desc_csum_set(fs, i); 550 } 551 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 552 } 553 554 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 555 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) { 556 for (i = 0; i < fs->group_desc_count; i++) { 557 gd = ext2fs_group_desc(fs, fs->group_desc, i); 558 if ((gd->bg_flags & EXT2_BG_INODE_ZEROED) == 0) { 559 /* 560 * XXX what we really should do is zap 561 * uninitialized inode tables instead. 562 */ 563 request_fsck_afterwards(fs); 564 break; 565 } 566 gd->bg_itable_unused = 0; 567 gd->bg_flags = 0; 568 gd->bg_checksum = 0; 569 } 570 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 571 } 572 573 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, 574 EXT4_FEATURE_RO_COMPAT_QUOTA)) { 575 /* 576 * Set the Q_flag here and handle the quota options in the code 577 * below. 578 */ 579 if (!Q_flag) { 580 Q_flag = 1; 581 /* Enable both user quota and group quota by default */ 582 usrquota = QOPT_ENABLE; 583 grpquota = QOPT_ENABLE; 584 } 585 sb->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA; 586 } 587 588 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 589 EXT4_FEATURE_RO_COMPAT_QUOTA)) { 590 /* 591 * Set the Q_flag here and handle the quota options in the code 592 * below. 593 */ 594 if (Q_flag) 595 fputs(_("\nWarning: '^quota' option overrides '-Q'" 596 "arguments.\n"), stderr); 597 Q_flag = 1; 598 /* Disable both user quota and group quota by default */ 599 usrquota = QOPT_DISABLE; 600 grpquota = QOPT_DISABLE; 601 } 602 603 if (sb->s_rev_level == EXT2_GOOD_OLD_REV && 604 (sb->s_feature_compat || sb->s_feature_ro_compat || 605 sb->s_feature_incompat)) 606 ext2fs_update_dynamic_rev(fs); 607 608 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT, 609 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) || 610 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 611 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) || 612 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT, 613 EXT2_FEATURE_INCOMPAT_FILETYPE) || 614 FEATURE_CHANGED(E2P_FEATURE_COMPAT, 615 EXT2_FEATURE_COMPAT_RESIZE_INODE) || 616 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 617 EXT2_FEATURE_RO_COMPAT_LARGE_FILE)) 618 request_fsck_afterwards(fs); 619 620 if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) || 621 (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) || 622 (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat)) 623 ext2fs_mark_super_dirty(fs); 624 625 return 0; 626} 627 628/* 629 * Add a journal to the filesystem. 630 */ 631static int add_journal(ext2_filsys fs) 632{ 633 unsigned long journal_blocks; 634 errcode_t retval; 635 ext2_filsys jfs; 636 io_manager io_ptr; 637 638 if (fs->super->s_feature_compat & 639 EXT3_FEATURE_COMPAT_HAS_JOURNAL) { 640 fputs(_("The filesystem already has a journal.\n"), stderr); 641 goto err; 642 } 643 if (journal_device) { 644 check_plausibility(journal_device); 645 check_mount(journal_device, 0, _("journal")); 646#ifdef CONFIG_TESTIO_DEBUG 647 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 648 io_ptr = test_io_manager; 649 test_io_backing_manager = unix_io_manager; 650 } else 651#endif 652 io_ptr = unix_io_manager; 653 retval = ext2fs_open(journal_device, EXT2_FLAG_RW| 654 EXT2_FLAG_JOURNAL_DEV_OK, 0, 655 fs->blocksize, io_ptr, &jfs); 656 if (retval) { 657 com_err(program_name, retval, 658 _("\n\twhile trying to open journal on %s\n"), 659 journal_device); 660 goto err; 661 } 662 printf(_("Creating journal on device %s: "), 663 journal_device); 664 fflush(stdout); 665 666 retval = ext2fs_add_journal_device(fs, jfs); 667 ext2fs_close(jfs); 668 if (retval) { 669 com_err(program_name, retval, 670 _("while adding filesystem to journal on %s"), 671 journal_device); 672 goto err; 673 } 674 fputs(_("done\n"), stdout); 675 } else if (journal_size) { 676 fputs(_("Creating journal inode: "), stdout); 677 fflush(stdout); 678 journal_blocks = figure_journal_size(journal_size, fs); 679 680 retval = ext2fs_add_journal_inode(fs, journal_blocks, 681 journal_flags); 682 if (retval) { 683 fprintf(stderr, "\n"); 684 com_err(program_name, retval, 685 _("\n\twhile trying to create journal file")); 686 return retval; 687 } else 688 fputs(_("done\n"), stdout); 689 /* 690 * If the filesystem wasn't mounted, we need to force 691 * the block group descriptors out. 692 */ 693 if ((mount_flags & EXT2_MF_MOUNTED) == 0) 694 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 695 } 696 print_check_message(fs->super->s_max_mnt_count, 697 fs->super->s_checkinterval); 698 return 0; 699 700err: 701 free(journal_device); 702 return 1; 703} 704 705static void handle_quota_options(ext2_filsys fs) 706{ 707 quota_ctx_t qctx; 708 ext2_ino_t qf_ino; 709 710 if (!usrquota && !grpquota) 711 /* Nothing to do. */ 712 return; 713 714 quota_init_context(&qctx, fs, -1); 715 716 if (usrquota == QOPT_ENABLE || grpquota == QOPT_ENABLE) 717 quota_compute_usage(qctx); 718 719 if (usrquota == QOPT_ENABLE && !fs->super->s_usr_quota_inum) { 720 if ((qf_ino = quota_file_exists(fs, USRQUOTA, 721 QFMT_VFS_V1)) > 0) 722 quota_update_limits(qctx, qf_ino, USRQUOTA); 723 quota_write_inode(qctx, USRQUOTA); 724 } else if (usrquota == QOPT_DISABLE) { 725 quota_remove_inode(fs, USRQUOTA); 726 } 727 728 if (grpquota == QOPT_ENABLE && !fs->super->s_grp_quota_inum) { 729 if ((qf_ino = quota_file_exists(fs, GRPQUOTA, 730 QFMT_VFS_V1)) > 0) 731 quota_update_limits(qctx, qf_ino, GRPQUOTA); 732 quota_write_inode(qctx, GRPQUOTA); 733 } else if (grpquota == QOPT_DISABLE) { 734 quota_remove_inode(fs, GRPQUOTA); 735 } 736 737 quota_release_context(&qctx); 738 739 if ((usrquota == QOPT_ENABLE) || (grpquota == QOPT_ENABLE)) { 740 fprintf(stderr, _("\nWarning: the quota feature is still " 741 "under development\n" 742 "See https://ext4.wiki.kernel.org/" 743 "index.php/Quota for more information\n\n")); 744 fs->super->s_feature_ro_compat |= EXT4_FEATURE_RO_COMPAT_QUOTA; 745 ext2fs_mark_super_dirty(fs); 746 } else if (!fs->super->s_usr_quota_inum && 747 !fs->super->s_grp_quota_inum) { 748 fs->super->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA; 749 ext2fs_mark_super_dirty(fs); 750 } 751 752 return; 753} 754 755static void parse_quota_opts(const char *opts) 756{ 757 char *buf, *token, *next, *p; 758 int len; 759 760 len = strlen(opts); 761 buf = malloc(len+1); 762 if (!buf) { 763 fputs(_("Couldn't allocate memory to parse quota " 764 "options!\n"), stderr); 765 exit(1); 766 } 767 strcpy(buf, opts); 768 for (token = buf; token && *token; token = next) { 769 p = strchr(token, ','); 770 next = 0; 771 if (p) { 772 *p = 0; 773 next = p+1; 774 } 775 776 if (strcmp(token, "usrquota") == 0) { 777 usrquota = QOPT_ENABLE; 778 } else if (strcmp(token, "^usrquota") == 0) { 779 usrquota = QOPT_DISABLE; 780 } else if (strcmp(token, "grpquota") == 0) { 781 grpquota = QOPT_ENABLE; 782 } else if (strcmp(token, "^grpquota") == 0) { 783 grpquota = QOPT_DISABLE; 784 } else { 785 fputs(_("\nBad quota options specified.\n\n" 786 "Following valid quota options are available " 787 "(pass by separating with comma):\n" 788 "\t[^]usrquota\n" 789 "\t[^]grpquota\n" 790 "\n\n"), stderr); 791 free(buf); 792 exit(1); 793 } 794 } 795 free(buf); 796} 797 798 799 800static void parse_e2label_options(int argc, char ** argv) 801{ 802 if ((argc < 2) || (argc > 3)) { 803 fputs(_("Usage: e2label device [newlabel]\n"), stderr); 804 exit(1); 805 } 806 io_options = strchr(argv[1], '?'); 807 if (io_options) 808 *io_options++ = 0; 809 device_name = blkid_get_devname(NULL, argv[1], NULL); 810 if (!device_name) { 811 com_err("e2label", 0, _("Unable to resolve '%s'"), 812 argv[1]); 813 exit(1); 814 } 815 open_flag = EXT2_FLAG_JOURNAL_DEV_OK; 816 if (argc == 3) { 817 open_flag |= EXT2_FLAG_RW; 818 L_flag = 1; 819 new_label = argv[2]; 820 } else 821 print_label++; 822} 823 824static time_t parse_time(char *str) 825{ 826 struct tm ts; 827 828 if (strcmp(str, "now") == 0) { 829 return (time(0)); 830 } 831 memset(&ts, 0, sizeof(ts)); 832#ifdef HAVE_STRPTIME 833 strptime(str, "%Y%m%d%H%M%S", &ts); 834#else 835 sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon, 836 &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec); 837 ts.tm_year -= 1900; 838 ts.tm_mon -= 1; 839 if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 || 840 ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 || 841 ts.tm_min > 59 || ts.tm_sec > 61) 842 ts.tm_mday = 0; 843#endif 844 if (ts.tm_mday == 0) { 845 com_err(program_name, 0, 846 _("Couldn't parse date/time specifier: %s"), 847 str); 848 usage(); 849 } 850 ts.tm_isdst = -1; 851 return (mktime(&ts)); 852} 853 854static void parse_tune2fs_options(int argc, char **argv) 855{ 856 int c; 857 char *tmp; 858 struct group *gr; 859 struct passwd *pw; 860 861 open_flag = 0; 862 863 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE); 864 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) 865 switch (c) { 866 case 'c': 867 max_mount_count = strtol(optarg, &tmp, 0); 868 if (*tmp || max_mount_count > 16000) { 869 com_err(program_name, 0, 870 _("bad mounts count - %s"), 871 optarg); 872 usage(); 873 } 874 if (max_mount_count == 0) 875 max_mount_count = -1; 876 c_flag = 1; 877 open_flag = EXT2_FLAG_RW; 878 break; 879 case 'C': 880 mount_count = strtoul(optarg, &tmp, 0); 881 if (*tmp || mount_count > 16000) { 882 com_err(program_name, 0, 883 _("bad mounts count - %s"), 884 optarg); 885 usage(); 886 } 887 C_flag = 1; 888 open_flag = EXT2_FLAG_RW; 889 break; 890 case 'e': 891 if (strcmp(optarg, "continue") == 0) 892 errors = EXT2_ERRORS_CONTINUE; 893 else if (strcmp(optarg, "remount-ro") == 0) 894 errors = EXT2_ERRORS_RO; 895 else if (strcmp(optarg, "panic") == 0) 896 errors = EXT2_ERRORS_PANIC; 897 else { 898 com_err(program_name, 0, 899 _("bad error behavior - %s"), 900 optarg); 901 usage(); 902 } 903 e_flag = 1; 904 open_flag = EXT2_FLAG_RW; 905 break; 906 case 'E': 907 extended_cmd = optarg; 908 open_flag |= EXT2_FLAG_RW; 909 break; 910 case 'f': /* Force */ 911 f_flag = 1; 912 break; 913 case 'g': 914 resgid = strtoul(optarg, &tmp, 0); 915 if (*tmp) { 916 gr = getgrnam(optarg); 917 if (gr == NULL) 918 tmp = optarg; 919 else { 920 resgid = gr->gr_gid; 921 *tmp = 0; 922 } 923 } 924 if (*tmp) { 925 com_err(program_name, 0, 926 _("bad gid/group name - %s"), 927 optarg); 928 usage(); 929 } 930 g_flag = 1; 931 open_flag = EXT2_FLAG_RW; 932 break; 933 case 'i': 934 interval = strtoul(optarg, &tmp, 0); 935 switch (*tmp) { 936 case 's': 937 tmp++; 938 break; 939 case '\0': 940 case 'd': 941 case 'D': /* days */ 942 interval *= 86400; 943 if (*tmp != '\0') 944 tmp++; 945 break; 946 case 'm': 947 case 'M': /* months! */ 948 interval *= 86400 * 30; 949 tmp++; 950 break; 951 case 'w': 952 case 'W': /* weeks */ 953 interval *= 86400 * 7; 954 tmp++; 955 break; 956 } 957 if (*tmp) { 958 com_err(program_name, 0, 959 _("bad interval - %s"), optarg); 960 usage(); 961 } 962 i_flag = 1; 963 open_flag = EXT2_FLAG_RW; 964 break; 965 case 'j': 966 if (!journal_size) 967 journal_size = -1; 968 open_flag = EXT2_FLAG_RW; 969 break; 970 case 'J': 971 parse_journal_opts(optarg); 972 open_flag = EXT2_FLAG_RW; 973 break; 974 case 'l': 975 l_flag = 1; 976 break; 977 case 'L': 978 new_label = optarg; 979 L_flag = 1; 980 open_flag |= EXT2_FLAG_RW | 981 EXT2_FLAG_JOURNAL_DEV_OK; 982 break; 983 case 'm': 984 reserved_ratio = strtod(optarg, &tmp); 985 if (*tmp || reserved_ratio > 50 || 986 reserved_ratio < 0) { 987 com_err(program_name, 0, 988 _("bad reserved block ratio - %s"), 989 optarg); 990 usage(); 991 } 992 m_flag = 1; 993 open_flag = EXT2_FLAG_RW; 994 break; 995 case 'M': 996 new_last_mounted = optarg; 997 M_flag = 1; 998 open_flag = EXT2_FLAG_RW; 999 break; 1000 case 'o': 1001 if (mntopts_cmd) { 1002 com_err(program_name, 0, 1003 _("-o may only be specified once")); 1004 usage(); 1005 } 1006 mntopts_cmd = optarg; 1007 open_flag = EXT2_FLAG_RW; 1008 break; 1009 case 'O': 1010 if (features_cmd) { 1011 com_err(program_name, 0, 1012 _("-O may only be specified once")); 1013 usage(); 1014 } 1015 features_cmd = optarg; 1016 open_flag = EXT2_FLAG_RW; 1017 break; 1018 case 'Q': 1019 Q_flag = 1; 1020 parse_quota_opts(optarg); 1021 open_flag = EXT2_FLAG_RW; 1022 break; 1023 case 'r': 1024 reserved_blocks = strtoul(optarg, &tmp, 0); 1025 if (*tmp) { 1026 com_err(program_name, 0, 1027 _("bad reserved blocks count - %s"), 1028 optarg); 1029 usage(); 1030 } 1031 r_flag = 1; 1032 open_flag = EXT2_FLAG_RW; 1033 break; 1034 case 's': /* Deprecated */ 1035 s_flag = atoi(optarg); 1036 open_flag = EXT2_FLAG_RW; 1037 break; 1038 case 'T': 1039 T_flag = 1; 1040 last_check_time = parse_time(optarg); 1041 open_flag = EXT2_FLAG_RW; 1042 break; 1043 case 'u': 1044 resuid = strtoul(optarg, &tmp, 0); 1045 if (*tmp) { 1046 pw = getpwnam(optarg); 1047 if (pw == NULL) 1048 tmp = optarg; 1049 else { 1050 resuid = pw->pw_uid; 1051 *tmp = 0; 1052 } 1053 } 1054 if (*tmp) { 1055 com_err(program_name, 0, 1056 _("bad uid/user name - %s"), 1057 optarg); 1058 usage(); 1059 } 1060 u_flag = 1; 1061 open_flag = EXT2_FLAG_RW; 1062 break; 1063 case 'U': 1064 new_UUID = optarg; 1065 U_flag = 1; 1066 open_flag = EXT2_FLAG_RW | 1067 EXT2_FLAG_JOURNAL_DEV_OK; 1068 break; 1069 case 'I': 1070 new_inode_size = strtoul(optarg, &tmp, 0); 1071 if (*tmp) { 1072 com_err(program_name, 0, 1073 _("bad inode size - %s"), 1074 optarg); 1075 usage(); 1076 } 1077 if (!((new_inode_size & 1078 (new_inode_size - 1)) == 0)) { 1079 com_err(program_name, 0, 1080 _("Inode size must be a " 1081 "power of two- %s"), 1082 optarg); 1083 usage(); 1084 } 1085 open_flag = EXT2_FLAG_RW; 1086 I_flag = 1; 1087 break; 1088 default: 1089 usage(); 1090 } 1091 if (optind < argc - 1 || optind == argc) 1092 usage(); 1093 if (!open_flag && !l_flag) 1094 usage(); 1095 io_options = strchr(argv[optind], '?'); 1096 if (io_options) 1097 *io_options++ = 0; 1098 device_name = blkid_get_devname(NULL, argv[optind], NULL); 1099 if (!device_name) { 1100 com_err(program_name, 0, _("Unable to resolve '%s'"), 1101 argv[optind]); 1102 exit(1); 1103 } 1104} 1105 1106#ifdef CONFIG_BUILD_FINDFS 1107void do_findfs(int argc, char **argv) 1108{ 1109 char *dev; 1110 1111 if ((argc != 2) || 1112 (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) { 1113 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n"); 1114 exit(2); 1115 } 1116 dev = blkid_get_devname(NULL, argv[1], NULL); 1117 if (!dev) { 1118 com_err("findfs", 0, _("Unable to resolve '%s'"), 1119 argv[1]); 1120 exit(1); 1121 } 1122 puts(dev); 1123 exit(0); 1124} 1125#endif 1126 1127static int parse_extended_opts(ext2_filsys fs, const char *opts) 1128{ 1129 char *buf, *token, *next, *p, *arg; 1130 int len, hash_alg; 1131 int r_usage = 0; 1132 1133 len = strlen(opts); 1134 buf = malloc(len+1); 1135 if (!buf) { 1136 fprintf(stderr, 1137 _("Couldn't allocate memory to parse options!\n")); 1138 return 1; 1139 } 1140 strcpy(buf, opts); 1141 for (token = buf; token && *token; token = next) { 1142 p = strchr(token, ','); 1143 next = 0; 1144 if (p) { 1145 *p = 0; 1146 next = p+1; 1147 } 1148 arg = strchr(token, '='); 1149 if (arg) { 1150 *arg = 0; 1151 arg++; 1152 } 1153 if (strcmp(token, "clear-mmp") == 0 || 1154 strcmp(token, "clear_mmp") == 0) { 1155 clear_mmp = 1; 1156 } else if (strcmp(token, "mmp_update_interval") == 0) { 1157 unsigned long intv; 1158 if (!arg) { 1159 r_usage++; 1160 continue; 1161 } 1162 intv = strtoul(arg, &p, 0); 1163 if (*p) { 1164 fprintf(stderr, 1165 _("Invalid mmp_update_interval: %s\n"), 1166 arg); 1167 r_usage++; 1168 continue; 1169 } 1170 if (intv == 0) { 1171 intv = EXT4_MMP_UPDATE_INTERVAL; 1172 } else if (intv > EXT4_MMP_MAX_UPDATE_INTERVAL) { 1173 fprintf(stderr, 1174 _("mmp_update_interval too big: %lu\n"), 1175 intv); 1176 r_usage++; 1177 continue; 1178 } 1179 printf(P_("Setting multiple mount protection update " 1180 "interval to %lu second\n", 1181 "Setting multiple mount protection update " 1182 "interval to %lu seconds\n", intv), 1183 intv); 1184 fs->super->s_mmp_update_interval = intv; 1185 ext2fs_mark_super_dirty(fs); 1186 } else if (!strcmp(token, "test_fs")) { 1187 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS; 1188 printf("Setting test filesystem flag\n"); 1189 ext2fs_mark_super_dirty(fs); 1190 } else if (!strcmp(token, "^test_fs")) { 1191 fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS; 1192 printf("Clearing test filesystem flag\n"); 1193 ext2fs_mark_super_dirty(fs); 1194 } else if (strcmp(token, "stride") == 0) { 1195 if (!arg) { 1196 r_usage++; 1197 continue; 1198 } 1199 stride = strtoul(arg, &p, 0); 1200 if (*p) { 1201 fprintf(stderr, 1202 _("Invalid RAID stride: %s\n"), 1203 arg); 1204 r_usage++; 1205 continue; 1206 } 1207 stride_set = 1; 1208 } else if (strcmp(token, "stripe-width") == 0 || 1209 strcmp(token, "stripe_width") == 0) { 1210 if (!arg) { 1211 r_usage++; 1212 continue; 1213 } 1214 stripe_width = strtoul(arg, &p, 0); 1215 if (*p) { 1216 fprintf(stderr, 1217 _("Invalid RAID stripe-width: %s\n"), 1218 arg); 1219 r_usage++; 1220 continue; 1221 } 1222 stripe_width_set = 1; 1223 } else if (strcmp(token, "hash_alg") == 0 || 1224 strcmp(token, "hash-alg") == 0) { 1225 if (!arg) { 1226 r_usage++; 1227 continue; 1228 } 1229 hash_alg = e2p_string2hash(arg); 1230 if (hash_alg < 0) { 1231 fprintf(stderr, 1232 _("Invalid hash algorithm: %s\n"), 1233 arg); 1234 r_usage++; 1235 continue; 1236 } 1237 fs->super->s_def_hash_version = hash_alg; 1238 printf(_("Setting default hash algorithm " 1239 "to %s (%d)\n"), 1240 arg, hash_alg); 1241 ext2fs_mark_super_dirty(fs); 1242 } else if (!strcmp(token, "mount_opts")) { 1243 if (!arg) { 1244 r_usage++; 1245 continue; 1246 } 1247 if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) { 1248 fprintf(stderr, 1249 "Extended mount options too long\n"); 1250 continue; 1251 } 1252 ext_mount_opts = strdup(arg); 1253 } else 1254 r_usage++; 1255 } 1256 if (r_usage) { 1257 fprintf(stderr, _("\nBad options specified.\n\n" 1258 "Extended options are separated by commas, " 1259 "and may take an argument which\n" 1260 "\tis set off by an equals ('=') sign.\n\n" 1261 "Valid extended options are:\n" 1262 "\tclear_mmp\n" 1263 "\thash_alg=<hash algorithm>\n" 1264 "\tmount_opts=<extended default mount options>\n" 1265 "\tstride=<RAID per-disk chunk size in blocks>\n" 1266 "\tstripe_width=<RAID stride*data disks in blocks>\n" 1267 "\ttest_fs\n" 1268 "\t^test_fs\n")); 1269 free(buf); 1270 return 1; 1271 } 1272 free(buf); 1273 1274 return 0; 1275} 1276 1277/* 1278 * Fill in the block bitmap bmap with the information regarding the 1279 * blocks to be moved 1280 */ 1281static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp, 1282 ext2fs_block_bitmap bmap) 1283{ 1284 dgrp_t i; 1285 int retval; 1286 ext2_badblocks_list bb_list = 0; 1287 blk64_t j, needed_blocks = 0; 1288 blk64_t start_blk, end_blk; 1289 1290 retval = ext2fs_read_bb_inode(fs, &bb_list); 1291 if (retval) 1292 return retval; 1293 1294 for (i = 0; i < fs->group_desc_count; i++) { 1295 start_blk = ext2fs_inode_table_loc(fs, i) + 1296 fs->inode_blocks_per_group; 1297 1298 end_blk = ext2fs_inode_table_loc(fs, i) + 1299 new_ino_blks_per_grp; 1300 1301 for (j = start_blk; j < end_blk; j++) { 1302 if (ext2fs_test_block_bitmap2(fs->block_map, j)) { 1303 /* 1304 * IF the block is a bad block we fail 1305 */ 1306 if (ext2fs_badblocks_list_test(bb_list, j)) { 1307 ext2fs_badblocks_list_free(bb_list); 1308 return ENOSPC; 1309 } 1310 1311 ext2fs_mark_block_bitmap2(bmap, j); 1312 } else { 1313 /* 1314 * We are going to use this block for 1315 * inode table. So mark them used. 1316 */ 1317 ext2fs_mark_block_bitmap2(fs->block_map, j); 1318 } 1319 } 1320 needed_blocks += end_blk - start_blk; 1321 } 1322 1323 ext2fs_badblocks_list_free(bb_list); 1324 if (needed_blocks > ext2fs_free_blocks_count(fs->super)) 1325 return ENOSPC; 1326 1327 return 0; 1328} 1329 1330static int ext2fs_is_meta_block(ext2_filsys fs, blk64_t blk) 1331{ 1332 dgrp_t group; 1333 group = ext2fs_group_of_blk2(fs, blk); 1334 if (ext2fs_block_bitmap_loc(fs, group) == blk) 1335 return 1; 1336 if (ext2fs_inode_bitmap_loc(fs, group) == blk) 1337 return 1; 1338 return 0; 1339} 1340 1341static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk64_t blk) 1342{ 1343 blk64_t start_blk, end_blk; 1344 start_blk = fs->super->s_first_data_block + 1345 EXT2_BLOCKS_PER_GROUP(fs->super) * group; 1346 /* 1347 * We cannot get new block beyond end_blk for for the last block group 1348 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group 1349 */ 1350 end_blk = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super); 1351 if (blk >= start_blk && blk <= end_blk) 1352 return 1; 1353 return 0; 1354} 1355 1356static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap) 1357{ 1358 1359 char *buf; 1360 dgrp_t group = 0; 1361 errcode_t retval; 1362 int meta_data = 0; 1363 blk64_t blk, new_blk, goal; 1364 struct blk_move *bmv; 1365 1366 retval = ext2fs_get_mem(fs->blocksize, &buf); 1367 if (retval) 1368 return retval; 1369 1370 for (new_blk = blk = fs->super->s_first_data_block; 1371 blk < ext2fs_blocks_count(fs->super); blk++) { 1372 if (!ext2fs_test_block_bitmap2(bmap, blk)) 1373 continue; 1374 1375 if (ext2fs_is_meta_block(fs, blk)) { 1376 /* 1377 * If the block is mapping a fs meta data block 1378 * like group desc/block bitmap/inode bitmap. We 1379 * should find a block in the same group and fix 1380 * the respective fs metadata pointers. Otherwise 1381 * fail 1382 */ 1383 group = ext2fs_group_of_blk2(fs, blk); 1384 goal = ext2fs_group_first_block2(fs, group); 1385 meta_data = 1; 1386 1387 } else { 1388 goal = new_blk; 1389 } 1390 retval = ext2fs_new_block2(fs, goal, NULL, &new_blk); 1391 if (retval) 1392 goto err_out; 1393 1394 /* new fs meta data block should be in the same group */ 1395 if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) { 1396 retval = ENOSPC; 1397 goto err_out; 1398 } 1399 1400 /* Mark this block as allocated */ 1401 ext2fs_mark_block_bitmap2(fs->block_map, new_blk); 1402 1403 /* Add it to block move list */ 1404 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv); 1405 if (retval) 1406 goto err_out; 1407 1408 bmv->old_loc = blk; 1409 bmv->new_loc = new_blk; 1410 1411 list_add(&(bmv->list), &blk_move_list); 1412 1413 retval = io_channel_read_blk64(fs->io, blk, 1, buf); 1414 if (retval) 1415 goto err_out; 1416 1417 retval = io_channel_write_blk64(fs->io, new_blk, 1, buf); 1418 if (retval) 1419 goto err_out; 1420 } 1421 1422err_out: 1423 ext2fs_free_mem(&buf); 1424 return retval; 1425} 1426 1427static blk64_t translate_block(blk64_t blk) 1428{ 1429 struct list_head *entry; 1430 struct blk_move *bmv; 1431 1432 list_for_each(entry, &blk_move_list) { 1433 bmv = list_entry(entry, struct blk_move, list); 1434 if (bmv->old_loc == blk) 1435 return bmv->new_loc; 1436 } 1437 1438 return 0; 1439} 1440 1441static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)), 1442 blk64_t *block_nr, 1443 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 1444 blk64_t ref_block EXT2FS_ATTR((unused)), 1445 int ref_offset EXT2FS_ATTR((unused)), 1446 void *priv_data) 1447{ 1448 int ret = 0; 1449 blk64_t new_blk; 1450 ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data; 1451 1452 if (!ext2fs_test_block_bitmap2(bmap, *block_nr)) 1453 return 0; 1454 new_blk = translate_block(*block_nr); 1455 if (new_blk) { 1456 *block_nr = new_blk; 1457 /* 1458 * This will force the ext2fs_write_inode in the iterator 1459 */ 1460 ret |= BLOCK_CHANGED; 1461 } 1462 1463 return ret; 1464} 1465 1466static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap) 1467{ 1468 errcode_t retval = 0; 1469 ext2_ino_t ino; 1470 blk64_t blk; 1471 char *block_buf = 0; 1472 struct ext2_inode inode; 1473 ext2_inode_scan scan = NULL; 1474 1475 retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf); 1476 if (retval) 1477 return retval; 1478 1479 retval = ext2fs_open_inode_scan(fs, 0, &scan); 1480 if (retval) 1481 goto err_out; 1482 1483 while (1) { 1484 retval = ext2fs_get_next_inode(scan, &ino, &inode); 1485 if (retval) 1486 goto err_out; 1487 1488 if (!ino) 1489 break; 1490 1491 if (inode.i_links_count == 0) 1492 continue; /* inode not in use */ 1493 1494 /* FIXME!! 1495 * If we end up modifying the journal inode 1496 * the sb->s_jnl_blocks will differ. But a 1497 * subsequent e2fsck fixes that. 1498 * Do we need to fix this ?? 1499 */ 1500 1501 if (ext2fs_file_acl_block(fs, &inode) && 1502 ext2fs_test_block_bitmap2(bmap, 1503 ext2fs_file_acl_block(fs, &inode))) { 1504 blk = translate_block(ext2fs_file_acl_block(fs, 1505 &inode)); 1506 if (!blk) 1507 continue; 1508 1509 ext2fs_file_acl_block_set(fs, &inode, blk); 1510 1511 /* 1512 * Write the inode to disk so that inode table 1513 * resizing can work 1514 */ 1515 retval = ext2fs_write_inode(fs, ino, &inode); 1516 if (retval) 1517 goto err_out; 1518 } 1519 1520 if (!ext2fs_inode_has_valid_blocks2(fs, &inode)) 1521 continue; 1522 1523 retval = ext2fs_block_iterate3(fs, ino, 0, block_buf, 1524 process_block, bmap); 1525 if (retval) 1526 goto err_out; 1527 1528 } 1529 1530err_out: 1531 ext2fs_free_mem(&block_buf); 1532 1533 return retval; 1534} 1535 1536/* 1537 * We need to scan for inode and block bitmaps that may need to be 1538 * moved. This can take place if the filesystem was formatted for 1539 * RAID arrays using the mke2fs's extended option "stride". 1540 */ 1541static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap) 1542{ 1543 dgrp_t i; 1544 blk64_t blk, new_blk; 1545 1546 for (i = 0; i < fs->group_desc_count; i++) { 1547 blk = ext2fs_block_bitmap_loc(fs, i); 1548 if (ext2fs_test_block_bitmap2(bmap, blk)) { 1549 new_blk = translate_block(blk); 1550 if (!new_blk) 1551 continue; 1552 ext2fs_block_bitmap_loc_set(fs, i, new_blk); 1553 } 1554 1555 blk = ext2fs_inode_bitmap_loc(fs, i); 1556 if (ext2fs_test_block_bitmap2(bmap, blk)) { 1557 new_blk = translate_block(blk); 1558 if (!new_blk) 1559 continue; 1560 ext2fs_inode_bitmap_loc_set(fs, i, new_blk); 1561 } 1562 } 1563 return 0; 1564} 1565 1566static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size) 1567{ 1568 dgrp_t i; 1569 blk64_t blk; 1570 errcode_t retval; 1571 int new_ino_blks_per_grp; 1572 unsigned int j; 1573 char *old_itable = NULL, *new_itable = NULL; 1574 char *tmp_old_itable = NULL, *tmp_new_itable = NULL; 1575 unsigned long old_ino_size; 1576 int old_itable_size, new_itable_size; 1577 1578 old_itable_size = fs->inode_blocks_per_group * fs->blocksize; 1579 old_ino_size = EXT2_INODE_SIZE(fs->super); 1580 1581 new_ino_blks_per_grp = ext2fs_div_ceil( 1582 EXT2_INODES_PER_GROUP(fs->super) * 1583 new_ino_size, 1584 fs->blocksize); 1585 1586 new_itable_size = new_ino_blks_per_grp * fs->blocksize; 1587 1588 retval = ext2fs_get_mem(old_itable_size, &old_itable); 1589 if (retval) 1590 return retval; 1591 1592 retval = ext2fs_get_mem(new_itable_size, &new_itable); 1593 if (retval) 1594 goto err_out; 1595 1596 tmp_old_itable = old_itable; 1597 tmp_new_itable = new_itable; 1598 1599 for (i = 0; i < fs->group_desc_count; i++) { 1600 blk = ext2fs_inode_table_loc(fs, i); 1601 retval = io_channel_read_blk64(fs->io, blk, 1602 fs->inode_blocks_per_group, old_itable); 1603 if (retval) 1604 goto err_out; 1605 1606 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) { 1607 memcpy(new_itable, old_itable, old_ino_size); 1608 1609 memset(new_itable+old_ino_size, 0, 1610 new_ino_size - old_ino_size); 1611 1612 new_itable += new_ino_size; 1613 old_itable += old_ino_size; 1614 } 1615 1616 /* reset the pointer */ 1617 old_itable = tmp_old_itable; 1618 new_itable = tmp_new_itable; 1619 1620 retval = io_channel_write_blk64(fs->io, blk, 1621 new_ino_blks_per_grp, new_itable); 1622 if (retval) 1623 goto err_out; 1624 } 1625 1626 /* Update the meta data */ 1627 fs->inode_blocks_per_group = new_ino_blks_per_grp; 1628 fs->super->s_inode_size = new_ino_size; 1629 1630err_out: 1631 if (old_itable) 1632 ext2fs_free_mem(&old_itable); 1633 1634 if (new_itable) 1635 ext2fs_free_mem(&new_itable); 1636 1637 return retval; 1638} 1639 1640static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs) 1641{ 1642 blk64_t blk; 1643 ext2_ino_t ino; 1644 unsigned int group = 0; 1645 unsigned int count = 0; 1646 int total_free = 0; 1647 int group_free = 0; 1648 1649 /* 1650 * First calculate the block statistics 1651 */ 1652 for (blk = fs->super->s_first_data_block; 1653 blk < ext2fs_blocks_count(fs->super); blk++) { 1654 if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) { 1655 group_free++; 1656 total_free++; 1657 } 1658 count++; 1659 if ((count == fs->super->s_blocks_per_group) || 1660 (blk == ext2fs_blocks_count(fs->super)-1)) { 1661 ext2fs_bg_free_blocks_count_set(fs, group++, 1662 group_free); 1663 count = 0; 1664 group_free = 0; 1665 } 1666 } 1667 total_free = EXT2FS_C2B(fs, total_free); 1668 ext2fs_free_blocks_count_set(fs->super, total_free); 1669 1670 /* 1671 * Next, calculate the inode statistics 1672 */ 1673 group_free = 0; 1674 total_free = 0; 1675 count = 0; 1676 group = 0; 1677 1678 /* Protect loop from wrap-around if s_inodes_count maxed */ 1679 for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) { 1680 if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) { 1681 group_free++; 1682 total_free++; 1683 } 1684 count++; 1685 if ((count == fs->super->s_inodes_per_group) || 1686 (ino == fs->super->s_inodes_count)) { 1687 ext2fs_bg_free_inodes_count_set(fs, group++, 1688 group_free); 1689 count = 0; 1690 group_free = 0; 1691 } 1692 } 1693 fs->super->s_free_inodes_count = total_free; 1694 ext2fs_mark_super_dirty(fs); 1695 return 0; 1696} 1697 1698#define list_for_each_safe(pos, pnext, head) \ 1699 for (pos = (head)->next, pnext = pos->next; pos != (head); \ 1700 pos = pnext, pnext = pos->next) 1701 1702static void free_blk_move_list(void) 1703{ 1704 struct list_head *entry, *tmp; 1705 struct blk_move *bmv; 1706 1707 list_for_each_safe(entry, tmp, &blk_move_list) { 1708 bmv = list_entry(entry, struct blk_move, list); 1709 list_del(entry); 1710 ext2fs_free_mem(&bmv); 1711 } 1712 return; 1713} 1714 1715static int resize_inode(ext2_filsys fs, unsigned long new_size) 1716{ 1717 errcode_t retval; 1718 int new_ino_blks_per_grp; 1719 ext2fs_block_bitmap bmap; 1720 1721 retval = ext2fs_read_inode_bitmap(fs); 1722 if (retval) { 1723 fputs(_("Failed to read inode bitmap\n"), stderr); 1724 return retval; 1725 } 1726 retval = ext2fs_read_block_bitmap(fs); 1727 if (retval) { 1728 fputs(_("Failed to read block bitmap\n"), stderr); 1729 return retval; 1730 } 1731 INIT_LIST_HEAD(&blk_move_list); 1732 1733 1734 new_ino_blks_per_grp = ext2fs_div_ceil( 1735 EXT2_INODES_PER_GROUP(fs->super)* 1736 new_size, 1737 fs->blocksize); 1738 1739 /* We may change the file system. 1740 * Mark the file system as invalid so that 1741 * the user is prompted to run fsck. 1742 */ 1743 fs->super->s_state &= ~EXT2_VALID_FS; 1744 1745 retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"), 1746 &bmap); 1747 if (retval) { 1748 fputs(_("Failed to allocate block bitmap when " 1749 "increasing inode size\n"), stderr); 1750 return retval; 1751 } 1752 retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap); 1753 if (retval) { 1754 fputs(_("Not enough space to increase inode size \n"), stderr); 1755 goto err_out; 1756 } 1757 retval = move_block(fs, bmap); 1758 if (retval) { 1759 fputs(_("Failed to relocate blocks during inode resize \n"), 1760 stderr); 1761 goto err_out; 1762 } 1763 retval = inode_scan_and_fix(fs, bmap); 1764 if (retval) 1765 goto err_out_undo; 1766 1767 retval = group_desc_scan_and_fix(fs, bmap); 1768 if (retval) 1769 goto err_out_undo; 1770 1771 retval = expand_inode_table(fs, new_size); 1772 if (retval) 1773 goto err_out_undo; 1774 1775 ext2fs_calculate_summary_stats(fs); 1776 1777 fs->super->s_state |= EXT2_VALID_FS; 1778 /* mark super block and block bitmap as dirty */ 1779 ext2fs_mark_super_dirty(fs); 1780 ext2fs_mark_bb_dirty(fs); 1781 1782err_out: 1783 free_blk_move_list(); 1784 ext2fs_free_block_bitmap(bmap); 1785 1786 return retval; 1787 1788err_out_undo: 1789 free_blk_move_list(); 1790 ext2fs_free_block_bitmap(bmap); 1791 fputs(_("Error in resizing the inode size.\n" 1792 "Run e2undo to undo the " 1793 "file system changes. \n"), stderr); 1794 1795 return retval; 1796} 1797 1798static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr) 1799{ 1800 errcode_t retval = 0; 1801 const char *tdb_dir; 1802 char *tdb_file; 1803 char *dev_name, *tmp_name; 1804 1805#if 0 /* FIXME!! */ 1806 /* 1807 * Configuration via a conf file would be 1808 * nice 1809 */ 1810 profile_get_string(profile, "scratch_files", 1811 "directory", 0, 0, 1812 &tdb_dir); 1813#endif 1814 tmp_name = strdup(name); 1815 if (!tmp_name) { 1816 alloc_fn_fail: 1817 com_err(program_name, ENOMEM, 1818 _("Couldn't allocate memory for tdb filename\n")); 1819 return ENOMEM; 1820 } 1821 dev_name = basename(tmp_name); 1822 1823 tdb_dir = getenv("E2FSPROGS_UNDO_DIR"); 1824 if (!tdb_dir) 1825 tdb_dir = "/var/lib/e2fsprogs"; 1826 1827 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || 1828 access(tdb_dir, W_OK)) 1829 return 0; 1830 1831 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1); 1832 if (!tdb_file) 1833 goto alloc_fn_fail; 1834 sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name); 1835 1836 if (!access(tdb_file, F_OK)) { 1837 if (unlink(tdb_file) < 0) { 1838 retval = errno; 1839 com_err(program_name, retval, 1840 _("while trying to delete %s"), 1841 tdb_file); 1842 free(tdb_file); 1843 return retval; 1844 } 1845 } 1846 1847 set_undo_io_backing_manager(*io_ptr); 1848 *io_ptr = undo_io_manager; 1849 set_undo_io_backup_file(tdb_file); 1850 printf(_("To undo the tune2fs operation please run " 1851 "the command\n e2undo %s %s\n\n"), 1852 tdb_file, name); 1853 free(tdb_file); 1854 free(tmp_name); 1855 return retval; 1856} 1857 1858int main(int argc, char **argv) 1859{ 1860 errcode_t retval; 1861 ext2_filsys fs; 1862 struct ext2_super_block *sb; 1863 io_manager io_ptr, io_ptr_orig = NULL; 1864 int rc = 0; 1865 1866#ifdef ENABLE_NLS 1867 setlocale(LC_MESSAGES, ""); 1868 setlocale(LC_CTYPE, ""); 1869 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 1870 textdomain(NLS_CAT_NAME); 1871 set_com_err_gettext(gettext); 1872#endif 1873 if (argc && *argv) 1874 program_name = *argv; 1875 add_error_table(&et_ext2_error_table); 1876 1877#ifdef CONFIG_BUILD_FINDFS 1878 if (strcmp(get_progname(argv[0]), "findfs") == 0) 1879 do_findfs(argc, argv); 1880#endif 1881 if (strcmp(get_progname(argv[0]), "e2label") == 0) 1882 parse_e2label_options(argc, argv); 1883 else 1884 parse_tune2fs_options(argc, argv); 1885 1886#ifdef CONFIG_TESTIO_DEBUG 1887 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) { 1888 io_ptr = test_io_manager; 1889 test_io_backing_manager = unix_io_manager; 1890 } else 1891#endif 1892 io_ptr = unix_io_manager; 1893 1894retry_open: 1895 if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag) 1896 open_flag |= EXT2_FLAG_SKIP_MMP; 1897 1898 open_flag |= EXT2_FLAG_64BITS; 1899 1900 /* keep the filesystem struct around to dump MMP data */ 1901 open_flag |= EXT2_FLAG_NOFREE_ON_ERROR; 1902 1903 retval = ext2fs_open2(device_name, io_options, open_flag, 1904 0, 0, io_ptr, &fs); 1905 if (retval) { 1906 com_err(program_name, retval, 1907 _("while trying to open %s"), 1908 device_name); 1909 if (retval == EXT2_ET_MMP_FSCK_ON || 1910 retval == EXT2_ET_MMP_UNKNOWN_SEQ) 1911 dump_mmp_msg(fs->mmp_buf, 1912 _("If you are sure the filesystem " 1913 "is not in use on any node, run:\n" 1914 "'tune2fs -f -E clear_mmp {device}'\n")); 1915 else if (retval == EXT2_ET_MMP_FAILED) 1916 dump_mmp_msg(fs->mmp_buf, NULL); 1917 else if (retval == EXT2_ET_MMP_MAGIC_INVALID) 1918 fprintf(stderr, 1919 _("MMP block magic is bad. Try to fix it by " 1920 "running:\n'e2fsck -f %s'\n"), device_name); 1921 else if (retval != EXT2_ET_MMP_FAILED) 1922 fprintf(stderr, 1923 _("Couldn't find valid filesystem superblock.\n")); 1924 1925 ext2fs_free(fs); 1926 exit(1); 1927 } 1928 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE; 1929 1930 if (I_flag && !io_ptr_orig) { 1931 /* 1932 * Check the inode size is right so we can issue an 1933 * error message and bail before setting up the tdb 1934 * file. 1935 */ 1936 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) { 1937 fprintf(stderr, _("The inode size is already %lu\n"), 1938 new_inode_size); 1939 rc = 1; 1940 goto closefs; 1941 } 1942 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) { 1943 fprintf(stderr, _("Shrinking the inode size is " 1944 "not supported\n")); 1945 rc = 1; 1946 goto closefs; 1947 } 1948 if (new_inode_size > fs->blocksize) { 1949 fprintf(stderr, _("Invalid inode size %lu (max %d)\n"), 1950 new_inode_size, fs->blocksize); 1951 rc = 1; 1952 goto closefs; 1953 } 1954 1955 /* 1956 * If inode resize is requested use the 1957 * Undo I/O manager 1958 */ 1959 io_ptr_orig = io_ptr; 1960 retval = tune2fs_setup_tdb(device_name, &io_ptr); 1961 if (retval) { 1962 rc = 1; 1963 goto closefs; 1964 } 1965 if (io_ptr != io_ptr_orig) { 1966 ext2fs_close(fs); 1967 goto retry_open; 1968 } 1969 } 1970 1971 sb = fs->super; 1972 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; 1973 1974 if (print_label) { 1975 /* For e2label emulation */ 1976 printf("%.*s\n", (int) sizeof(sb->s_volume_name), 1977 sb->s_volume_name); 1978 remove_error_table(&et_ext2_error_table); 1979 goto closefs; 1980 } 1981 1982 retval = ext2fs_check_if_mounted(device_name, &mount_flags); 1983 if (retval) { 1984 com_err("ext2fs_check_if_mount", retval, 1985 _("while determining whether %s is mounted."), 1986 device_name); 1987 rc = 1; 1988 goto closefs; 1989 } 1990 /* Normally we only need to write out the superblock */ 1991 fs->flags |= EXT2_FLAG_SUPER_ONLY; 1992 1993 if (c_flag) { 1994 sb->s_max_mnt_count = max_mount_count; 1995 ext2fs_mark_super_dirty(fs); 1996 printf(_("Setting maximal mount count to %d\n"), 1997 max_mount_count); 1998 } 1999 if (C_flag) { 2000 sb->s_mnt_count = mount_count; 2001 ext2fs_mark_super_dirty(fs); 2002 printf(_("Setting current mount count to %d\n"), mount_count); 2003 } 2004 if (e_flag) { 2005 sb->s_errors = errors; 2006 ext2fs_mark_super_dirty(fs); 2007 printf(_("Setting error behavior to %d\n"), errors); 2008 } 2009 if (g_flag) { 2010 sb->s_def_resgid = resgid; 2011 ext2fs_mark_super_dirty(fs); 2012 printf(_("Setting reserved blocks gid to %lu\n"), resgid); 2013 } 2014 if (i_flag) { 2015 if (interval >= (1ULL << 32)) { 2016 com_err(program_name, 0, 2017 _("interval between checks is too big (%lu)"), 2018 interval); 2019 rc = 1; 2020 goto closefs; 2021 } 2022 sb->s_checkinterval = interval; 2023 ext2fs_mark_super_dirty(fs); 2024 printf(_("Setting interval between checks to %lu seconds\n"), 2025 interval); 2026 } 2027 if (m_flag) { 2028 ext2fs_r_blocks_count_set(sb, reserved_ratio * 2029 ext2fs_blocks_count(sb) / 100.0); 2030 ext2fs_mark_super_dirty(fs); 2031 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"), 2032 reserved_ratio, ext2fs_r_blocks_count(sb)); 2033 } 2034 if (r_flag) { 2035 if (reserved_blocks > ext2fs_blocks_count(sb)/2) { 2036 com_err(program_name, 0, 2037 _("reserved blocks count is too big (%llu)"), 2038 reserved_blocks); 2039 rc = 1; 2040 goto closefs; 2041 } 2042 ext2fs_r_blocks_count_set(sb, reserved_blocks); 2043 ext2fs_mark_super_dirty(fs); 2044 printf(_("Setting reserved blocks count to %llu\n"), 2045 reserved_blocks); 2046 } 2047 if (s_flag == 1) { 2048 if (sb->s_feature_ro_compat & 2049 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) 2050 fputs(_("\nThe filesystem already has sparse " 2051 "superblocks.\n"), stderr); 2052 else { 2053 sb->s_feature_ro_compat |= 2054 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 2055 sb->s_state &= ~EXT2_VALID_FS; 2056 ext2fs_mark_super_dirty(fs); 2057 printf(_("\nSparse superblock flag set. %s"), 2058 _(please_fsck)); 2059 } 2060 } 2061 if (s_flag == 0) { 2062 fputs(_("\nClearing the sparse superflag not supported.\n"), 2063 stderr); 2064 rc = 1; 2065 goto closefs; 2066 } 2067 if (T_flag) { 2068 sb->s_lastcheck = last_check_time; 2069 ext2fs_mark_super_dirty(fs); 2070 printf(_("Setting time filesystem last checked to %s\n"), 2071 ctime(&last_check_time)); 2072 } 2073 if (u_flag) { 2074 sb->s_def_resuid = resuid; 2075 ext2fs_mark_super_dirty(fs); 2076 printf(_("Setting reserved blocks uid to %lu\n"), resuid); 2077 } 2078 if (L_flag) { 2079 if (strlen(new_label) > sizeof(sb->s_volume_name)) 2080 fputs(_("Warning: label too long, truncating.\n"), 2081 stderr); 2082 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name)); 2083 strncpy(sb->s_volume_name, new_label, 2084 sizeof(sb->s_volume_name)); 2085 ext2fs_mark_super_dirty(fs); 2086 } 2087 if (M_flag) { 2088 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted)); 2089 strncpy(sb->s_last_mounted, new_last_mounted, 2090 sizeof(sb->s_last_mounted)); 2091 ext2fs_mark_super_dirty(fs); 2092 } 2093 if (mntopts_cmd) { 2094 rc = update_mntopts(fs, mntopts_cmd); 2095 if (rc) 2096 goto closefs; 2097 } 2098 if (features_cmd) { 2099 rc = update_feature_set(fs, features_cmd); 2100 if (rc) 2101 goto closefs; 2102 } 2103 if (extended_cmd) { 2104 rc = parse_extended_opts(fs, extended_cmd); 2105 if (rc) 2106 goto closefs; 2107 if (clear_mmp && !f_flag) { 2108 fputs(_("Error in using clear_mmp. " 2109 "It must be used with -f\n"), 2110 stderr); 2111 goto closefs; 2112 } 2113 } 2114 if (clear_mmp) { 2115 rc = ext2fs_mmp_clear(fs); 2116 goto closefs; 2117 } 2118 if (journal_size || journal_device) { 2119 rc = add_journal(fs); 2120 if (rc) 2121 goto closefs; 2122 } 2123 2124 if (Q_flag) { 2125 if (mount_flags & EXT2_MF_MOUNTED) { 2126 fputs(_("The quota feature may only be changed when " 2127 "the filesystem is unmounted.\n"), stderr); 2128 rc = 1; 2129 goto closefs; 2130 } 2131 handle_quota_options(fs); 2132 } 2133 2134 if (U_flag) { 2135 int set_csum = 0; 2136 dgrp_t i; 2137 2138 if (sb->s_feature_ro_compat & 2139 EXT4_FEATURE_RO_COMPAT_GDT_CSUM) { 2140 /* 2141 * Determine if the block group checksums are 2142 * correct so we know whether or not to set 2143 * them later on. 2144 */ 2145 for (i = 0; i < fs->group_desc_count; i++) 2146 if (!ext2fs_group_desc_csum_verify(fs, i)) 2147 break; 2148 if (i >= fs->group_desc_count) 2149 set_csum = 1; 2150 } 2151 if ((strcasecmp(new_UUID, "null") == 0) || 2152 (strcasecmp(new_UUID, "clear") == 0)) { 2153 uuid_clear(sb->s_uuid); 2154 } else if (strcasecmp(new_UUID, "time") == 0) { 2155 uuid_generate_time(sb->s_uuid); 2156 } else if (strcasecmp(new_UUID, "random") == 0) { 2157 uuid_generate(sb->s_uuid); 2158 } else if (uuid_parse(new_UUID, sb->s_uuid)) { 2159 com_err(program_name, 0, _("Invalid UUID format\n")); 2160 rc = 1; 2161 goto closefs; 2162 } 2163 if (set_csum) { 2164 for (i = 0; i < fs->group_desc_count; i++) 2165 ext2fs_group_desc_csum_set(fs, i); 2166 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 2167 } 2168 ext2fs_mark_super_dirty(fs); 2169 } 2170 if (I_flag) { 2171 if (mount_flags & EXT2_MF_MOUNTED) { 2172 fputs(_("The inode size may only be " 2173 "changed when the filesystem is " 2174 "unmounted.\n"), stderr); 2175 rc = 1; 2176 goto closefs; 2177 } 2178 if (fs->super->s_feature_incompat & 2179 EXT4_FEATURE_INCOMPAT_FLEX_BG) { 2180 fputs(_("Changing the inode size not supported for " 2181 "filesystems with the flex_bg\n" 2182 "feature enabled.\n"), 2183 stderr); 2184 rc = 1; 2185 goto closefs; 2186 } 2187 /* 2188 * We want to update group descriptor also 2189 * with the new free inode count 2190 */ 2191 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 2192 if (resize_inode(fs, new_inode_size) == 0) { 2193 printf(_("Setting inode size %lu\n"), 2194 new_inode_size); 2195 } else { 2196 printf(_("Failed to change inode size\n")); 2197 rc = 1; 2198 goto closefs; 2199 } 2200 } 2201 2202 if (l_flag) 2203 list_super(sb); 2204 if (stride_set) { 2205 sb->s_raid_stride = stride; 2206 ext2fs_mark_super_dirty(fs); 2207 printf(_("Setting stride size to %d\n"), stride); 2208 } 2209 if (stripe_width_set) { 2210 sb->s_raid_stripe_width = stripe_width; 2211 ext2fs_mark_super_dirty(fs); 2212 printf(_("Setting stripe width to %d\n"), stripe_width); 2213 } 2214 if (ext_mount_opts) { 2215 strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts, 2216 sizeof(fs->super->s_mount_opts)); 2217 fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0; 2218 ext2fs_mark_super_dirty(fs); 2219 printf(_("Setting extended default mount options to '%s'\n"), 2220 ext_mount_opts); 2221 free(ext_mount_opts); 2222 } 2223 free(device_name); 2224 remove_error_table(&et_ext2_error_table); 2225 2226closefs: 2227 if (rc) { 2228 ext2fs_mmp_stop(fs); 2229 exit(1); 2230 } 2231 2232 return (ext2fs_close(fs) ? 1 : 0); 2233} 2234