/* * tune2fs.c - Change the file system parameters on an ext2 file system * * Copyright (C) 1992, 1993, 1994 Remy Card * Laboratoire MASI, Institut Blaise Pascal * Universite Pierre et Marie Curie (Paris VI) * * Copyright 1995, 1996, 1997, 1998, 1999, 2000 by Theodore Ts'o. * * %Begin-Header% * This file may be redistributed under the terms of the GNU Public * License. * %End-Header% */ /* * History: * 93/06/01 - Creation * 93/10/31 - Added the -c option to change the maximal mount counts * 93/12/14 - Added -l flag to list contents of superblock * M.J.E. Mol (marcel@duteca.et.tudelft.nl) * F.W. ten Wolde (franky@duteca.et.tudelft.nl) * 93/12/29 - Added the -e option to change errors behavior * 94/02/27 - Ported to use the ext2fs library * 94/03/06 - Added the checks interval from Uwe Ohse (uwe@tirka.gun.de) */ #define _XOPEN_SOURCE 600 /* for inclusion of strptime() */ #include "config.h" #include #include #ifdef HAVE_GETOPT_H #include #else extern char *optarg; extern int optind; #endif #include #include #ifdef HAVE_STDLIB_H #include #endif #ifdef HAVE_STRINGS_H #include /* for strcasecmp() */ #else #define _BSD_SOURCE /* for inclusion of strcasecmp() via */ #define _DEFAULT_SOURCE /* since glibc 2.20 _BSD_SOURCE is deprecated */ #endif #include #include #include #include #include #include #include "ext2fs/ext2_fs.h" #include "ext2fs/ext2fs.h" #include "ext2fs/kernel-jbd.h" #include "et/com_err.h" #include "support/plausible.h" #include "support/quotaio.h" #include "uuid/uuid.h" #include "e2p/e2p.h" #include "util.h" #include "blkid/blkid.h" #include "../version.h" #include "support/nls-enable.h" #define QOPT_ENABLE (1) #define QOPT_DISABLE (-1) extern int ask_yn(const char *string, int def); const char *program_name = "tune2fs"; char *device_name; char *new_label, *new_last_mounted, *new_UUID; char *io_options; static int c_flag, C_flag, e_flag, f_flag, g_flag, i_flag, l_flag, L_flag; static int m_flag, M_flag, Q_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag; static int I_flag; static int clear_mmp; static time_t last_check_time; static int print_label; static int max_mount_count, mount_count, mount_flags; static unsigned long interval; static blk64_t reserved_blocks; static double reserved_ratio; static unsigned long resgid, resuid; static unsigned short errors; static int open_flag; static char *features_cmd; static char *mntopts_cmd; static int stride, stripe_width; static int stride_set, stripe_width_set; static char *extended_cmd; static unsigned long new_inode_size; static char *ext_mount_opts; static int quota_enable[MAXQUOTAS]; static int rewrite_checksums; static int feature_64bit; static int fsck_requested; static char *undo_file; int enabling_casefold; int journal_size, journal_flags; char *journal_device; static blk64_t journal_location = ~0LL; static struct list_head blk_move_list; struct blk_move { struct list_head list; blk64_t old_loc; blk64_t new_loc; }; errcode_t ext2fs_run_ext3_journal(ext2_filsys *fs); static const char *fsck_explain = N_("\nThis operation requires a freshly checked filesystem.\n"); static const char *please_fsck = N_("Please run e2fsck -f on the filesystem.\n"); static const char *please_dir_fsck = N_("Please run e2fsck -fD on the filesystem.\n"); #ifdef CONFIG_BUILD_FINDFS void do_findfs(int argc, char **argv); #endif #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */ int journal_enable_debug = -1; #endif static void usage(void) { fprintf(stderr, _("Usage: %s [-c max_mounts_count] [-e errors_behavior] [-f] " "[-g group]\n" "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n" "\t[-m reserved_blocks_percent] [-o [^]mount_options[,...]]\n" "\t[-r reserved_blocks_count] [-u user] [-C mount_count]\n" "\t[-L volume_label] [-M last_mounted_dir]\n" "\t[-O [^]feature[,...]] [-Q quota_options]\n" "\t[-E extended-option[,...]] [-T last_check_time] " "[-U UUID]\n\t[-I new_inode_size] [-z undo_file] device\n"), program_name); exit(1); } static __u32 ok_features[3] = { /* Compat */ EXT3_FEATURE_COMPAT_HAS_JOURNAL | EXT2_FEATURE_COMPAT_DIR_INDEX | EXT4_FEATURE_COMPAT_STABLE_INODES, /* Incompat */ EXT2_FEATURE_INCOMPAT_FILETYPE | EXT3_FEATURE_INCOMPAT_EXTENTS | EXT4_FEATURE_INCOMPAT_FLEX_BG | EXT4_FEATURE_INCOMPAT_EA_INODE| EXT4_FEATURE_INCOMPAT_MMP | EXT4_FEATURE_INCOMPAT_64BIT | EXT4_FEATURE_INCOMPAT_ENCRYPT | EXT4_FEATURE_INCOMPAT_CSUM_SEED | EXT4_FEATURE_INCOMPAT_LARGEDIR | EXT4_FEATURE_INCOMPAT_CASEFOLD, /* R/O compat */ EXT2_FEATURE_RO_COMPAT_LARGE_FILE | EXT4_FEATURE_RO_COMPAT_HUGE_FILE| EXT4_FEATURE_RO_COMPAT_DIR_NLINK| EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE| EXT4_FEATURE_RO_COMPAT_GDT_CSUM | EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER | EXT4_FEATURE_RO_COMPAT_QUOTA | EXT4_FEATURE_RO_COMPAT_METADATA_CSUM | EXT4_FEATURE_RO_COMPAT_READONLY | EXT4_FEATURE_RO_COMPAT_PROJECT | EXT4_FEATURE_RO_COMPAT_VERITY }; static __u32 clear_ok_features[3] = { /* Compat */ EXT3_FEATURE_COMPAT_HAS_JOURNAL | EXT2_FEATURE_COMPAT_RESIZE_INODE | EXT2_FEATURE_COMPAT_DIR_INDEX | EXT4_FEATURE_COMPAT_STABLE_INODES, /* Incompat */ EXT2_FEATURE_INCOMPAT_FILETYPE | EXT4_FEATURE_INCOMPAT_FLEX_BG | EXT4_FEATURE_INCOMPAT_MMP | EXT4_FEATURE_INCOMPAT_64BIT | EXT4_FEATURE_INCOMPAT_CSUM_SEED, /* R/O compat */ EXT2_FEATURE_RO_COMPAT_LARGE_FILE | EXT4_FEATURE_RO_COMPAT_HUGE_FILE| EXT4_FEATURE_RO_COMPAT_DIR_NLINK| EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE| EXT4_FEATURE_RO_COMPAT_GDT_CSUM | EXT4_FEATURE_RO_COMPAT_QUOTA | EXT4_FEATURE_RO_COMPAT_PROJECT | EXT4_FEATURE_RO_COMPAT_METADATA_CSUM | EXT4_FEATURE_RO_COMPAT_READONLY }; /** * Try to get journal super block if any */ static int get_journal_sb(ext2_filsys jfs, char buf[SUPERBLOCK_SIZE]) { int retval; journal_superblock_t *jsb; if (!ext2fs_has_feature_journal_dev(jfs->super)) { return EXT2_ET_UNSUPP_FEATURE; } /* Get the journal superblock */ if ((retval = io_channel_read_blk64(jfs->io, ext2fs_journal_sb_start(jfs->blocksize), -SUPERBLOCK_SIZE, buf))) { com_err(program_name, retval, "%s", _("while reading journal superblock")); return retval; } jsb = (journal_superblock_t *) buf; if ((jsb->s_header.h_magic != (unsigned)ntohl(JFS_MAGIC_NUMBER)) || (jsb->s_header.h_blocktype != (unsigned)ntohl(JFS_SUPERBLOCK_V2))) { fputs(_("Journal superblock not found!\n"), stderr); return EXT2_ET_BAD_MAGIC; } return 0; } static __u8 *journal_user(__u8 uuid[UUID_SIZE], __u8 s_users[JFS_USERS_SIZE], int nr_users) { int i; for (i = 0; i < nr_users; i++) { if (memcmp(uuid, &s_users[i * UUID_SIZE], UUID_SIZE) == 0) return &s_users[i * UUID_SIZE]; } return NULL; } /* * Remove an external journal from the filesystem */ static int remove_journal_device(ext2_filsys fs) { char *journal_path; ext2_filsys jfs; char buf[SUPERBLOCK_SIZE] __attribute__ ((aligned(8))); journal_superblock_t *jsb; int i, nr_users; errcode_t retval; int commit_remove_journal = 0; io_manager io_ptr; if (f_flag) commit_remove_journal = 1; /* force removal even if error */ uuid_unparse(fs->super->s_journal_uuid, buf); journal_path = blkid_get_devname(NULL, "UUID", buf); if (!journal_path) { journal_path = ext2fs_find_block_device(fs->super->s_journal_dev); if (!journal_path) goto no_valid_journal; } #ifdef CONFIG_TESTIO_DEBUG if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { io_ptr = test_io_manager; test_io_backing_manager = unix_io_manager; } else #endif io_ptr = unix_io_manager; retval = ext2fs_open(journal_path, EXT2_FLAG_RW| EXT2_FLAG_JOURNAL_DEV_OK, 0, fs->blocksize, io_ptr, &jfs); if (retval) { com_err(program_name, retval, "%s", _("while trying to open external journal")); goto no_valid_journal; } if ((retval = get_journal_sb(jfs, buf))) { if (retval == EXT2_ET_UNSUPP_FEATURE) fprintf(stderr, _("%s is not a journal device.\n"), journal_path); goto no_valid_journal; } jsb = (journal_superblock_t *) buf; /* Find the filesystem UUID */ nr_users = ntohl(jsb->s_nr_users); if (nr_users > JFS_USERS_MAX) { fprintf(stderr, _("Journal superblock is corrupted, nr_users\n" "is too high (%d).\n"), nr_users); commit_remove_journal = 1; goto no_valid_journal; } if (!journal_user(fs->super->s_uuid, jsb->s_users, nr_users)) { fputs(_("Filesystem's UUID not found on journal device.\n"), stderr); commit_remove_journal = 1; goto no_valid_journal; } nr_users--; for (i = 0; i < nr_users; i++) memcpy(&jsb->s_users[i * 16], &jsb->s_users[(i + 1) * 16], 16); jsb->s_nr_users = htonl(nr_users); /* Write back the journal superblock */ retval = io_channel_write_blk64(jfs->io, ext2fs_journal_sb_start(fs->blocksize), -SUPERBLOCK_SIZE, buf); if (retval) { com_err(program_name, retval, "while writing journal superblock."); goto no_valid_journal; } commit_remove_journal = 1; no_valid_journal: if (commit_remove_journal == 0) { fputs(_("Cannot locate journal device. It was NOT removed\n" "Use -f option to remove missing journal device.\n"), stderr); return 1; } fs->super->s_journal_dev = 0; memset(fs->super->s_jnl_blocks, 0, sizeof(fs->super->s_jnl_blocks)); uuid_clear(fs->super->s_journal_uuid); ext2fs_mark_super_dirty(fs); fputs(_("Journal removed\n"), stdout); free(journal_path); return 0; } /* Helper function for remove_journal_inode */ static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr, e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), blk64_t ref_block EXT2FS_ATTR((unused)), int ref_offset EXT2FS_ATTR((unused)), void *private EXT2FS_ATTR((unused))) { blk64_t block; int group; block = *blocknr; ext2fs_unmark_block_bitmap2(fs->block_map, block); group = ext2fs_group_of_blk2(fs, block); ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1); ext2fs_group_desc_csum_set(fs, group); ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs)); return 0; } /* * Remove the journal inode from the filesystem */ static errcode_t remove_journal_inode(ext2_filsys fs) { struct ext2_inode inode; errcode_t retval; ino_t ino = fs->super->s_journal_inum; retval = ext2fs_read_inode(fs, ino, &inode); if (retval) { com_err(program_name, retval, "%s", _("while reading journal inode")); return retval; } if (ino == EXT2_JOURNAL_INO) { retval = ext2fs_read_bitmaps(fs); if (retval) { com_err(program_name, retval, "%s", _("while reading bitmaps")); return retval; } retval = ext2fs_block_iterate3(fs, ino, BLOCK_FLAG_READ_ONLY, NULL, release_blocks_proc, NULL); if (retval) { com_err(program_name, retval, "%s", _("while clearing journal inode")); return retval; } memset(&inode, 0, sizeof(inode)); ext2fs_mark_bb_dirty(fs); fs->flags &= ~EXT2_FLAG_SUPER_ONLY; } else inode.i_flags &= ~EXT2_IMMUTABLE_FL; retval = ext2fs_write_inode(fs, ino, &inode); if (retval) { com_err(program_name, retval, "%s", _("while writing journal inode")); return retval; } fs->super->s_journal_inum = 0; memset(fs->super->s_jnl_blocks, 0, sizeof(fs->super->s_jnl_blocks)); ext2fs_mark_super_dirty(fs); return 0; } /* * Update the default mount options */ static int update_mntopts(ext2_filsys fs, char *mntopts) { struct ext2_super_block *sb = fs->super; if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) { fprintf(stderr, _("Invalid mount option set: %s\n"), mntopts); return 1; } ext2fs_mark_super_dirty(fs); return 0; } static void check_fsck_needed(ext2_filsys fs, const char *prompt) { /* Refuse to modify anything but a freshly checked valid filesystem. */ if (!(fs->super->s_state & EXT2_VALID_FS) || (fs->super->s_state & EXT2_ERROR_FS) || (fs->super->s_lastcheck < fs->super->s_mtime)) { puts(_(fsck_explain)); puts(_(please_fsck)); if (mount_flags & EXT2_MF_READONLY) printf("%s", _("(and reboot afterwards!)\n")); exit(1); } /* Give the admin a few seconds to bail out of a dangerous op. */ if (!getenv("TUNE2FS_FORCE_PROMPT") && (!isatty(0) || !isatty(1))) return; puts(prompt); proceed_question(5); } static void request_dir_fsck_afterwards(ext2_filsys fs) { static int requested; if (requested++) return; fsck_requested++; fs->super->s_state &= ~EXT2_VALID_FS; puts(_(fsck_explain)); puts(_(please_dir_fsck)); if (mount_flags & EXT2_MF_READONLY) printf("%s", _("(and reboot afterwards!)\n")); } static void request_fsck_afterwards(ext2_filsys fs) { static int requested = 0; if (requested++) return; fsck_requested++; fs->super->s_state &= ~EXT2_VALID_FS; printf("\n%s\n", _(please_fsck)); if (mount_flags & EXT2_MF_READONLY) printf("%s", _("(and reboot afterwards!)\n")); } static void convert_64bit(ext2_filsys fs, int direction) { /* * Is resize2fs going to demand a fsck run? Might as well tell the * user now. */ if (!fsck_requested && ((fs->super->s_state & EXT2_ERROR_FS) || !(fs->super->s_state & EXT2_VALID_FS) || fs->super->s_lastcheck < fs->super->s_mtime)) request_fsck_afterwards(fs); if (fsck_requested) fprintf(stderr, _("After running e2fsck, please run `resize2fs %s %s"), direction > 0 ? "-b" : "-s", fs->device_name); else fprintf(stderr, _("Please run `resize2fs %s %s"), direction > 0 ? "-b" : "-s", fs->device_name); if (undo_file) fprintf(stderr, _(" -z \"%s\""), undo_file); if (direction > 0) fprintf(stderr, _("' to enable 64-bit mode.\n")); else fprintf(stderr, _("' to disable 64-bit mode.\n")); } /* * Rewrite directory blocks with checksums */ struct rewrite_dir_context { char *buf; errcode_t errcode; ext2_ino_t dir; int is_htree; }; static int rewrite_dir_block(ext2_filsys fs, blk64_t *blocknr, e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), blk64_t ref_block EXT2FS_ATTR((unused)), int ref_offset EXT2FS_ATTR((unused)), void *priv_data) { struct ext2_dx_countlimit *dcl = NULL; struct rewrite_dir_context *ctx = priv_data; int dcl_offset, changed = 0; ctx->errcode = ext2fs_read_dir_block4(fs, *blocknr, ctx->buf, 0, ctx->dir); if (ctx->errcode) return BLOCK_ABORT; /* if htree node... */ if (ctx->is_htree) ext2fs_get_dx_countlimit(fs, (struct ext2_dir_entry *)ctx->buf, &dcl, &dcl_offset); if (dcl) { if (!ext2fs_has_feature_metadata_csum(fs->super)) { /* Ensure limit is the max size */ int max_entries = (fs->blocksize - dcl_offset) / sizeof(struct ext2_dx_entry); if (ext2fs_le16_to_cpu(dcl->limit) != max_entries) { changed = 1; dcl->limit = ext2fs_cpu_to_le16(max_entries); } } else { /* If htree block is full then rebuild the dir */ if (ext2fs_le16_to_cpu(dcl->count) == ext2fs_le16_to_cpu(dcl->limit)) { request_dir_fsck_afterwards(fs); return 0; } /* * Ensure dcl->limit is small enough to leave room for * the checksum tail. */ int max_entries = (fs->blocksize - (dcl_offset + sizeof(struct ext2_dx_tail))) / sizeof(struct ext2_dx_entry); if (ext2fs_le16_to_cpu(dcl->limit) != max_entries) dcl->limit = ext2fs_cpu_to_le16(max_entries); /* Always rewrite checksum */ changed = 1; } } else { unsigned int rec_len, name_size; char *top = ctx->buf + fs->blocksize; struct ext2_dir_entry *de = (struct ext2_dir_entry *)ctx->buf; struct ext2_dir_entry *last_de = NULL, *penultimate_de = NULL; /* Find last and penultimate dirent */ while ((char *)de < top) { penultimate_de = last_de; last_de = de; ctx->errcode = ext2fs_get_rec_len(fs, de, &rec_len); if (!ctx->errcode && !rec_len) ctx->errcode = EXT2_ET_DIR_CORRUPTED; if (ctx->errcode) return BLOCK_ABORT; de = (struct ext2_dir_entry *)(((char *)de) + rec_len); } ctx->errcode = ext2fs_get_rec_len(fs, last_de, &rec_len); if (ctx->errcode) return BLOCK_ABORT; name_size = ext2fs_dirent_name_len(last_de); if (!ext2fs_has_feature_metadata_csum(fs->super)) { if (!penultimate_de) return 0; if (last_de->inode || name_size || rec_len != sizeof(struct ext2_dir_entry_tail)) return 0; /* * The last dirent is unused and the right length to * have stored a checksum. Erase it. */ ctx->errcode = ext2fs_get_rec_len(fs, penultimate_de, &rec_len); if (!rec_len) ctx->errcode = EXT2_ET_DIR_CORRUPTED; if (ctx->errcode) return BLOCK_ABORT; ext2fs_set_rec_len(fs, rec_len + sizeof(struct ext2_dir_entry_tail), penultimate_de); changed = 1; } else { unsigned csum_size = sizeof(struct ext2_dir_entry_tail); struct ext2_dir_entry_tail *t; /* * If the last dirent looks like the tail, just update * the checksum. */ if (!last_de->inode && rec_len == csum_size) { t = (struct ext2_dir_entry_tail *)last_de; t->det_reserved_name_len = EXT2_DIR_NAME_LEN_CSUM; changed = 1; goto out; } if (name_size & 3) name_size = (name_size & ~3) + 4; /* If there's not enough space for the tail, e2fsck */ if (rec_len <= (8 + name_size + csum_size)) { request_dir_fsck_afterwards(fs); return 0; } /* Shorten that last de and insert the tail */ ext2fs_set_rec_len(fs, rec_len - csum_size, last_de); t = EXT2_DIRENT_TAIL(ctx->buf, fs->blocksize); ext2fs_initialize_dirent_tail(fs, t); /* Always update checksum */ changed = 1; } } out: if (!changed) return 0; ctx->errcode = ext2fs_write_dir_block4(fs, *blocknr, ctx->buf, 0, ctx->dir); if (ctx->errcode) return BLOCK_ABORT; return 0; } static errcode_t rewrite_directory(ext2_filsys fs, ext2_ino_t dir, struct ext2_inode *inode) { errcode_t retval; struct rewrite_dir_context ctx; retval = ext2fs_get_mem(fs->blocksize, &ctx.buf); if (retval) return retval; ctx.is_htree = (inode->i_flags & EXT2_INDEX_FL); ctx.dir = dir; ctx.errcode = 0; retval = ext2fs_block_iterate3(fs, dir, BLOCK_FLAG_READ_ONLY | BLOCK_FLAG_DATA_ONLY, 0, rewrite_dir_block, &ctx); ext2fs_free_mem(&ctx.buf); if (retval) return retval; return ctx.errcode; } /* * Context information that does not change across rewrite_one_inode() * invocations. */ struct rewrite_context { ext2_filsys fs; struct ext2_inode *zero_inode; char *ea_buf; int inode_size; }; #define fatal_err(code, args...) \ do { \ com_err(__func__, code, args); \ exit(1); \ } while (0); static void update_ea_inode_hash(struct rewrite_context *ctx, ext2_ino_t ino, struct ext2_inode *inode) { errcode_t retval; ext2_file_t file; __u32 hash; retval = ext2fs_file_open(ctx->fs, ino, 0, &file); if (retval) fatal_err(retval, "open ea_inode"); retval = ext2fs_file_read(file, ctx->ea_buf, inode->i_size, NULL); if (retval) fatal_err(retval, "read ea_inode"); retval = ext2fs_file_close(file); if (retval) fatal_err(retval, "close ea_inode"); hash = ext2fs_crc32c_le(ctx->fs->csum_seed, (unsigned char *) ctx->ea_buf, inode->i_size); ext2fs_set_ea_inode_hash(inode, hash); } static int update_xattr_entry_hashes(ext2_filsys fs, struct ext2_ext_attr_entry *entry, struct ext2_ext_attr_entry *end) { int modified = 0; errcode_t retval; while (entry < end && !EXT2_EXT_IS_LAST_ENTRY(entry)) { if (entry->e_value_inum) { retval = ext2fs_ext_attr_hash_entry2(fs, entry, NULL, &entry->e_hash); if (retval) fatal_err(retval, "hash ea_inode entry"); modified = 1; } entry = EXT2_EXT_ATTR_NEXT(entry); } return modified; } static void update_inline_xattr_hashes(struct rewrite_context *ctx, struct ext2_inode_large *inode) { struct ext2_ext_attr_entry *start, *end; __u32 *ea_magic; if (inode->i_extra_isize == 0) return; if (inode->i_extra_isize & 3 || inode->i_extra_isize > ctx->inode_size - EXT2_GOOD_OLD_INODE_SIZE) fatal_err(EXT2_ET_INODE_CORRUPTED, "bad i_extra_isize") ea_magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE + inode->i_extra_isize); if (*ea_magic != EXT2_EXT_ATTR_MAGIC) return; start = (struct ext2_ext_attr_entry *)(ea_magic + 1); end = (struct ext2_ext_attr_entry *)((char *)inode + ctx->inode_size); update_xattr_entry_hashes(ctx->fs, start, end); } static void update_block_xattr_hashes(struct rewrite_context *ctx, char *block_buf) { struct ext2_ext_attr_header *header; struct ext2_ext_attr_entry *start, *end; header = (struct ext2_ext_attr_header *)block_buf; if (header->h_magic != EXT2_EXT_ATTR_MAGIC) return; start = (struct ext2_ext_attr_entry *)(header+1); end = (struct ext2_ext_attr_entry *)(block_buf + ctx->fs->blocksize); if (update_xattr_entry_hashes(ctx->fs, start, end)) ext2fs_ext_attr_block_rehash(header, end); } static void rewrite_one_inode(struct rewrite_context *ctx, ext2_ino_t ino, struct ext2_inode *inode) { blk64_t file_acl_block; errcode_t retval; if (!ext2fs_test_inode_bitmap2(ctx->fs->inode_map, ino)) { if (!memcmp(inode, ctx->zero_inode, ctx->inode_size)) return; memset(inode, 0, ctx->inode_size); } if (inode->i_flags & EXT4_EA_INODE_FL) update_ea_inode_hash(ctx, ino, inode); if (ctx->inode_size != EXT2_GOOD_OLD_INODE_SIZE) update_inline_xattr_hashes(ctx, (struct ext2_inode_large *)inode); retval = ext2fs_write_inode_full(ctx->fs, ino, inode, ctx->inode_size); if (retval) fatal_err(retval, "while writing inode"); retval = ext2fs_fix_extents_checksums(ctx->fs, ino, inode); if (retval) fatal_err(retval, "while rewriting extents"); if (LINUX_S_ISDIR(inode->i_mode) && ext2fs_inode_has_valid_blocks2(ctx->fs, inode)) { retval = rewrite_directory(ctx->fs, ino, inode); if (retval) fatal_err(retval, "while rewriting directories"); } file_acl_block = ext2fs_file_acl_block(ctx->fs, inode); if (!file_acl_block) return; retval = ext2fs_read_ext_attr3(ctx->fs, file_acl_block, ctx->ea_buf, ino); if (retval) fatal_err(retval, "while rewriting extended attribute"); update_block_xattr_hashes(ctx, ctx->ea_buf); retval = ext2fs_write_ext_attr3(ctx->fs, file_acl_block, ctx->ea_buf, ino); if (retval) fatal_err(retval, "while rewriting extended attribute"); } /* * Forcibly set checksums in all inodes. */ static void rewrite_inodes(ext2_filsys fs) { ext2_inode_scan scan; errcode_t retval; ext2_ino_t ino; struct ext2_inode *inode; int pass; struct rewrite_context ctx = { .fs = fs, .inode_size = EXT2_INODE_SIZE(fs->super), }; if (fs->super->s_creator_os == EXT2_OS_HURD) return; retval = ext2fs_get_mem(ctx.inode_size, &inode); if (retval) fatal_err(retval, "while allocating memory"); retval = ext2fs_get_memzero(ctx.inode_size, &ctx.zero_inode); if (retval) fatal_err(retval, "while allocating memory"); retval = ext2fs_get_mem(64 * 1024, &ctx.ea_buf); if (retval) fatal_err(retval, "while allocating memory"); /* * Extended attribute inodes have a lookup hash that needs to be * recalculated with the new csum_seed. Other inodes referencing xattr * inodes need this value to be up to date. That's why we do two passes: * * pass 1: update xattr inodes to update their lookup hash as well as * other checksums. * * pass 2: go over other inodes to update their checksums. */ if (ext2fs_has_feature_ea_inode(fs->super)) pass = 1; else pass = 2; for (;pass <= 2; pass++) { retval = ext2fs_open_inode_scan(fs, 0, &scan); if (retval) fatal_err(retval, "while opening inode scan"); do { retval = ext2fs_get_next_inode_full(scan, &ino, inode, ctx.inode_size); if (retval) fatal_err(retval, "while getting next inode"); if (!ino) break; if (((pass == 1) && (inode->i_flags & EXT4_EA_INODE_FL)) || ((pass == 2) && !(inode->i_flags & EXT4_EA_INODE_FL))) rewrite_one_inode(&ctx, ino, inode); } while (ino); ext2fs_close_inode_scan(scan); } ext2fs_free_mem(&ctx.zero_inode); ext2fs_free_mem(&ctx.ea_buf); ext2fs_free_mem(&inode); } static void rewrite_metadata_checksums(ext2_filsys fs) { errcode_t retval; dgrp_t i; fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS; ext2fs_init_csum_seed(fs); for (i = 0; i < fs->group_desc_count; i++) ext2fs_group_desc_csum_set(fs, i); retval = ext2fs_read_bitmaps(fs); if (retval) fatal_err(retval, "while reading bitmaps"); rewrite_inodes(fs); ext2fs_mark_ib_dirty(fs); ext2fs_mark_bb_dirty(fs); ext2fs_mmp_update2(fs, 1); fs->flags &= ~EXT2_FLAG_SUPER_ONLY; fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS; if (ext2fs_has_feature_metadata_csum(fs->super)) fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM; else fs->super->s_checksum_type = 0; ext2fs_mark_super_dirty(fs); } static void enable_uninit_bg(ext2_filsys fs) { struct ext2_group_desc *gd; dgrp_t i; for (i = 0; i < fs->group_desc_count; i++) { gd = ext2fs_group_desc(fs, fs->group_desc, i); gd->bg_itable_unused = 0; gd->bg_flags = EXT2_BG_INODE_ZEROED; ext2fs_group_desc_csum_set(fs, i); } fs->flags &= ~EXT2_FLAG_SUPER_ONLY; } static errcode_t zero_empty_inodes(ext2_filsys fs) { int length = EXT2_INODE_SIZE(fs->super); struct ext2_inode *inode = NULL; ext2_inode_scan scan; errcode_t retval; ext2_ino_t ino; retval = ext2fs_open_inode_scan(fs, 0, &scan); if (retval) goto out; retval = ext2fs_get_mem(length, &inode); if (retval) goto out; do { retval = ext2fs_get_next_inode_full(scan, &ino, inode, length); if (retval) goto out; if (!ino) break; if (!ext2fs_test_inode_bitmap2(fs->inode_map, ino)) { memset(inode, 0, length); retval = ext2fs_write_inode_full(fs, ino, inode, length); if (retval) goto out; } } while (1); out: ext2fs_free_mem(&inode); ext2fs_close_inode_scan(scan); return retval; } static errcode_t disable_uninit_bg(ext2_filsys fs, __u32 csum_feature_flag) { struct ext2_group_desc *gd; dgrp_t i; errcode_t retval; blk64_t b, c, d; /* Load bitmaps to ensure that the uninit ones get written out */ fs->super->s_feature_ro_compat |= csum_feature_flag; retval = ext2fs_read_bitmaps(fs); fs->super->s_feature_ro_compat &= ~csum_feature_flag; if (retval) { com_err("disable_uninit_bg", retval, "while reading bitmaps"); request_fsck_afterwards(fs); return retval; } ext2fs_mark_ib_dirty(fs); ext2fs_mark_bb_dirty(fs); /* If we're only turning off uninit_bg, zero the inodes */ if (csum_feature_flag == EXT4_FEATURE_RO_COMPAT_GDT_CSUM) { retval = zero_empty_inodes(fs); if (retval) { com_err("disable_uninit_bg", retval, "while zeroing unused inodes"); request_fsck_afterwards(fs); return retval; } } /* The bbitmap is zeroed; we must mark group metadata blocks in use */ for (i = 0; i < fs->group_desc_count; i++) { b = ext2fs_block_bitmap_loc(fs, i); ext2fs_mark_block_bitmap2(fs->block_map, b); b = ext2fs_inode_bitmap_loc(fs, i); ext2fs_mark_block_bitmap2(fs->block_map, b); retval = ext2fs_super_and_bgd_loc2(fs, i, &b, &c, &d, NULL); if (retval == 0 && b) ext2fs_mark_block_bitmap2(fs->block_map, b); if (retval == 0 && c) ext2fs_mark_block_bitmap2(fs->block_map, c); if (retval == 0 && d) ext2fs_mark_block_bitmap2(fs->block_map, d); if (retval) { com_err("disable_uninit_bg", retval, "while initializing block bitmaps"); request_fsck_afterwards(fs); } gd = ext2fs_group_desc(fs, fs->group_desc, i); gd->bg_itable_unused = 0; gd->bg_flags = 0; ext2fs_group_desc_csum_set(fs, i); } fs->flags &= ~EXT2_FLAG_SUPER_ONLY; ext2fs_mark_super_dirty(fs); return 0; } static void try_confirm_csum_seed_support(void) { if (access("/sys/fs/ext4/features/metadata_csum_seed", R_OK)) fputs(_("WARNING: Could not confirm kernel support for " "metadata_csum_seed.\n This requires Linux >= " "v4.4.\n"), stderr); } /* * Update the feature set as provided by the user. */ static int update_feature_set(ext2_filsys fs, char *features) { struct ext2_super_block *sb = fs->super; __u32 old_features[3]; int type_err; unsigned int mask_err; errcode_t err; enum quota_type qtype; #define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \ ((&sb->s_feature_compat)[(type)] & (mask))) #define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \ !((&sb->s_feature_compat)[(type)] & (mask))) #define FEATURE_CHANGED(type, mask) ((mask) & \ (old_features[(type)] ^ (&sb->s_feature_compat)[(type)])) old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat; old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat; old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat; if (e2p_edit_feature2(features, &sb->s_feature_compat, ok_features, clear_ok_features, &type_err, &mask_err)) { if (!mask_err) fprintf(stderr, _("Invalid filesystem option set: %s\n"), features); else if (type_err & E2P_FEATURE_NEGATE_FLAG) fprintf(stderr, _("Clearing filesystem feature '%s' " "not supported.\n"), e2p_feature2string(type_err & E2P_FEATURE_TYPE_MASK, mask_err)); else fprintf(stderr, _("Setting filesystem feature '%s' " "not supported.\n"), e2p_feature2string(type_err, mask_err)); return 1; } if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { if ((mount_flags & EXT2_MF_MOUNTED) && !(mount_flags & EXT2_MF_READONLY)) { fputs(_("The has_journal feature may only be " "cleared when the filesystem is\n" "unmounted or mounted " "read-only.\n"), stderr); return 1; } if (ext2fs_has_feature_journal_needs_recovery(sb) && f_flag < 2) { fputs(_("The needs_recovery flag is set. " "Please run e2fsck before clearing\n" "the has_journal flag.\n"), stderr); return 1; } if (sb->s_journal_inum) { if (remove_journal_inode(fs)) return 1; } if (sb->s_journal_dev) { if (remove_journal_device(fs)) return 1; } } if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) { if (ext2fs_has_feature_meta_bg(sb)) { fputs(_("Setting filesystem feature 'sparse_super' " "not supported\nfor filesystems with " "the meta_bg feature enabled.\n"), stderr); return 1; } } if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) { int error; if ((mount_flags & EXT2_MF_MOUNTED) || (mount_flags & EXT2_MF_READONLY)) { fputs(_("The multiple mount protection feature can't\n" "be set if the filesystem is mounted or\n" "read-only.\n"), stderr); return 1; } error = ext2fs_mmp_init(fs); if (error) { fputs(_("\nError while enabling multiple mount " "protection feature."), stderr); return 1; } /* * We want to update group desc with the new free blocks count */ fs->flags &= ~EXT2_FLAG_SUPER_ONLY; printf(_("Multiple mount protection has been enabled " "with update interval %ds.\n"), sb->s_mmp_update_interval); } if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) { int error; if (mount_flags & EXT2_MF_READONLY) { fputs(_("The multiple mount protection feature cannot\n" "be disabled if the filesystem is readonly.\n"), stderr); return 1; } error = ext2fs_read_bitmaps(fs); if (error) { fputs(_("Error while reading bitmaps\n"), stderr); return 1; } error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL); if (error) { struct mmp_struct *mmp_cmp = fs->mmp_cmp; if (error == EXT2_ET_MMP_MAGIC_INVALID) printf(_("Magic number in MMP block does not " "match. expected: %x, actual: %x\n"), EXT4_MMP_MAGIC, mmp_cmp->mmp_magic); else com_err(program_name, error, "%s", _("while reading MMP block.")); goto mmp_error; } /* We need to force out the group descriptors as well */ fs->flags &= ~EXT2_FLAG_SUPER_ONLY; ext2fs_block_alloc_stats2(fs, sb->s_mmp_block, -1); mmp_error: sb->s_mmp_block = 0; sb->s_mmp_update_interval = 0; } if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { /* * If adding a journal flag, let the create journal * code below handle setting the flag and creating the * journal. We supply a default size if necessary. */ if (!journal_size) journal_size = -1; ext2fs_clear_feature_journal(sb); } if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) { if (!sb->s_def_hash_version) sb->s_def_hash_version = EXT2_HASH_HALF_MD4; if (uuid_is_null((unsigned char *) sb->s_hash_seed)) uuid_generate((unsigned char *) sb->s_hash_seed); } if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) { if (ext2fs_check_desc(fs)) { fputs(_("Clearing the flex_bg flag would " "cause the the filesystem to be\n" "inconsistent.\n"), stderr); return 1; } } if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) { if ((mount_flags & EXT2_MF_MOUNTED) && !(mount_flags & EXT2_MF_READONLY)) { fputs(_("The huge_file feature may only be " "cleared when the filesystem is\n" "unmounted or mounted " "read-only.\n"), stderr); return 1; } } if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) { check_fsck_needed(fs, _("Enabling checksums could take some time.")); if (mount_flags & EXT2_MF_MOUNTED) { fputs(_("Cannot enable metadata_csum on a mounted " "filesystem!\n"), stderr); exit(1); } if (!ext2fs_has_feature_extents(fs->super)) printf("%s", _("Extents are not enabled. The file extent " "tree can be checksummed, whereas block maps " "cannot. Not enabling extents reduces the " "coverage of metadata checksumming. " "Re-run with -O extent to rectify.\n")); if (!ext2fs_has_feature_64bit(fs->super)) printf("%s", _("64-bit filesystem support is not enabled. " "The larger fields afforded by this feature " "enable full-strength checksumming. " "Run resize2fs -b to rectify.\n")); rewrite_checksums = 1; /* metadata_csum supersedes uninit_bg */ ext2fs_clear_feature_gdt_csum(fs->super); /* if uninit_bg was previously off, rewrite group desc */ if (!(old_features[E2P_FEATURE_RO_INCOMPAT] & EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) enable_uninit_bg(fs); /* * Since metadata_csum supersedes uninit_bg, pretend like * uninit_bg has been off all along. */ old_features[E2P_FEATURE_RO_INCOMPAT] &= ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM; } if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) { __u32 test_features[3]; check_fsck_needed(fs, _("Disabling checksums could take some time.")); if (mount_flags & EXT2_MF_MOUNTED) { fputs(_("Cannot disable metadata_csum on a mounted " "filesystem!\n"), stderr); exit(1); } rewrite_checksums = 1; /* Enable uninit_bg unless the user expressly turned it off */ memcpy(test_features, old_features, sizeof(test_features)); test_features[E2P_FEATURE_RO_INCOMPAT] |= EXT4_FEATURE_RO_COMPAT_GDT_CSUM; e2p_edit_feature2(features, test_features, ok_features, clear_ok_features, NULL, NULL); if (test_features[E2P_FEATURE_RO_INCOMPAT] & EXT4_FEATURE_RO_COMPAT_GDT_CSUM) ext2fs_set_feature_gdt_csum(fs->super); /* * If we're turning off metadata_csum and not turning on * uninit_bg, rewrite group desc. */ if (!ext2fs_has_feature_gdt_csum(fs->super)) { err = disable_uninit_bg(fs, EXT4_FEATURE_RO_COMPAT_METADATA_CSUM); if (err) return 1; } else /* * metadata_csum previously provided uninit_bg, so if * we're also setting the uninit_bg feature bit, * pretend like it was previously enabled. Checksums * will be rewritten with crc16 later. */ old_features[E2P_FEATURE_RO_INCOMPAT] |= EXT4_FEATURE_RO_COMPAT_GDT_CSUM; fs->super->s_checksum_seed = 0; ext2fs_clear_feature_csum_seed(fs->super); } if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) { /* Do not enable uninit_bg when metadata_csum enabled */ if (ext2fs_has_feature_metadata_csum(fs->super)) ext2fs_clear_feature_gdt_csum(fs->super); else enable_uninit_bg(fs); } if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) { err = disable_uninit_bg(fs, EXT4_FEATURE_RO_COMPAT_GDT_CSUM); if (err) return 1; } /* * We don't actually toggle 64bit; resize2fs does that. But this * must come after the metadata_csum feature_on so that it won't * complain about the lack of 64bit. */ if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_64BIT)) { if (mount_flags & EXT2_MF_MOUNTED) { fprintf(stderr, _("Cannot enable 64-bit mode " "while mounted!\n")); exit(1); } ext2fs_clear_feature_64bit(sb); feature_64bit = 1; } if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_64BIT)) { if (mount_flags & EXT2_MF_MOUNTED) { fprintf(stderr, _("Cannot disable 64-bit mode " "while mounted!\n")); exit(1); } ext2fs_set_feature_64bit(sb); feature_64bit = -1; } if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_QUOTA)) { /* * Set the Q_flag here and handle the quota options in the code * below. */ if (!Q_flag) { Q_flag = 1; /* Enable usr/grp quota by default */ for (qtype = 0; qtype < MAXQUOTAS; qtype++) { if (qtype != PRJQUOTA) quota_enable[qtype] = QOPT_ENABLE; else quota_enable[qtype] = QOPT_DISABLE; } } ext2fs_clear_feature_quota(sb); } if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_PROJECT)) { if (fs->super->s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) { fprintf(stderr, _("Cannot enable project feature; " "inode size too small.\n")); exit(1); } Q_flag = 1; quota_enable[PRJQUOTA] = QOPT_ENABLE; } if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_PROJECT)) { Q_flag = 1; quota_enable[PRJQUOTA] = QOPT_DISABLE; } if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_QUOTA)) { /* * Set the Q_flag here and handle the quota options in the code * below. */ if (Q_flag) fputs(_("\nWarning: '^quota' option overrides '-Q'" "arguments.\n"), stderr); Q_flag = 1; /* Disable all quota by default */ for (qtype = 0; qtype < MAXQUOTAS; qtype++) quota_enable[qtype] = QOPT_DISABLE; } if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_ENCRYPT)) { fs->super->s_encrypt_algos[0] = EXT4_ENCRYPTION_MODE_AES_256_XTS; fs->super->s_encrypt_algos[1] = EXT4_ENCRYPTION_MODE_AES_256_CTS; } if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_CASEFOLD)) { if (mount_flags & EXT2_MF_MOUNTED) { fputs(_("The casefold feature may only be enabled when " "the filesystem is unmounted.\n"), stderr); return 1; } fs->super->s_encoding = EXT4_ENC_UTF8_12_1; fs->super->s_encoding_flags = e2p_get_encoding_flags(EXT4_ENC_UTF8_12_1); enabling_casefold = 1; } if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_CSUM_SEED)) { if (!ext2fs_has_feature_metadata_csum(sb)) { fputs(_("Setting feature 'metadata_csum_seed' " "is only supported\non filesystems with " "the metadata_csum feature enabled.\n"), stderr); return 1; } try_confirm_csum_seed_support(); fs->super->s_checksum_seed = fs->csum_seed; } if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_CSUM_SEED)) { __le32 uuid_seed; uuid_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid, sizeof(fs->super->s_uuid)); if (fs->super->s_checksum_seed != uuid_seed) { if (mount_flags & (EXT2_MF_BUSY|EXT2_MF_MOUNTED)) { fputs(_("UUID has changed since enabling " "metadata_csum. Filesystem must be unmounted " "\nto safely rewrite all metadata to match the new UUID.\n"), stderr); return 1; } check_fsck_needed(fs, _("Recalculating checksums " "could take some time.")); rewrite_checksums = 1; } } if (sb->s_rev_level == EXT2_GOOD_OLD_REV && (sb->s_feature_compat || sb->s_feature_ro_compat || sb->s_feature_incompat)) ext2fs_update_dynamic_rev(fs); if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT, EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) || FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_HUGE_FILE) || FEATURE_CHANGED(E2P_FEATURE_INCOMPAT, EXT2_FEATURE_INCOMPAT_FILETYPE) || FEATURE_CHANGED(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_RESIZE_INODE) || FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, EXT2_FEATURE_RO_COMPAT_LARGE_FILE)) request_fsck_afterwards(fs); if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) || (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) || (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat)) ext2fs_mark_super_dirty(fs); return 0; } /* * Add a journal to the filesystem. */ static int add_journal(ext2_filsys fs) { unsigned long journal_blocks; errcode_t retval; ext2_filsys jfs; io_manager io_ptr; if (ext2fs_has_feature_journal(fs->super)) { fputs(_("The filesystem already has a journal.\n"), stderr); goto err; } if (journal_device) { if (!check_plausibility(journal_device, CHECK_BLOCK_DEV, NULL)) proceed_question(-1); check_mount(journal_device, 0, _("journal")); #ifdef CONFIG_TESTIO_DEBUG if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { io_ptr = test_io_manager; test_io_backing_manager = unix_io_manager; } else #endif io_ptr = unix_io_manager; retval = ext2fs_open(journal_device, EXT2_FLAG_RW| EXT2_FLAG_JOURNAL_DEV_OK, 0, fs->blocksize, io_ptr, &jfs); if (retval) { com_err(program_name, retval, _("\n\twhile trying to open journal on %s\n"), journal_device); goto err; } printf(_("Creating journal on device %s: "), journal_device); fflush(stdout); retval = ext2fs_add_journal_device(fs, jfs); ext2fs_close_free(&jfs); if (retval) { com_err(program_name, retval, _("while adding filesystem to journal on %s"), journal_device); goto err; } fputs(_("done\n"), stdout); } else if (journal_size) { fputs(_("Creating journal inode: "), stdout); fflush(stdout); journal_blocks = figure_journal_size(journal_size, fs); if (journal_location_string) journal_location = parse_num_blocks2(journal_location_string, fs->super->s_log_block_size); retval = ext2fs_add_journal_inode2(fs, journal_blocks, journal_location, journal_flags); if (retval) { fprintf(stderr, "\n"); com_err(program_name, retval, "%s", _("\n\twhile trying to create journal file")); return retval; } else fputs(_("done\n"), stdout); /* * If the filesystem wasn't mounted, we need to force * the block group descriptors out. */ if ((mount_flags & EXT2_MF_MOUNTED) == 0) fs->flags &= ~EXT2_FLAG_SUPER_ONLY; } print_check_message(fs->super->s_max_mnt_count, fs->super->s_checkinterval); return 0; err: free(journal_device); return 1; } static void handle_quota_options(ext2_filsys fs) { errcode_t retval; quota_ctx_t qctx; ext2_ino_t qf_ino; enum quota_type qtype; unsigned int qtype_bits = 0; int need_dirty = 0; for (qtype = 0 ; qtype < MAXQUOTAS; qtype++) if (quota_enable[qtype] != 0) break; if (qtype == MAXQUOTAS) /* Nothing to do. */ return; if (quota_enable[PRJQUOTA] == QOPT_ENABLE && fs->super->s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) { fprintf(stderr, _("Cannot enable project quota; " "inode size too small.\n")); exit(1); } for (qtype = 0; qtype < MAXQUOTAS; qtype++) { if (quota_enable[qtype] == QOPT_ENABLE) qtype_bits |= 1 << qtype; } retval = quota_init_context(&qctx, fs, qtype_bits); if (retval) { com_err(program_name, retval, _("while initializing quota context in support library")); exit(1); } if (qtype_bits) quota_compute_usage(qctx); for (qtype = 0 ; qtype < MAXQUOTAS; qtype++) { if (quota_enable[qtype] == QOPT_ENABLE && *quota_sb_inump(fs->super, qtype) == 0) { if ((qf_ino = quota_file_exists(fs, qtype)) > 0) { retval = quota_update_limits(qctx, qf_ino, qtype); if (retval) { com_err(program_name, retval, _("while updating quota limits (%d)"), qtype); exit(1); } } retval = quota_write_inode(qctx, 1 << qtype); if (retval) { com_err(program_name, retval, _("while writing quota file (%d)"), qtype); exit(1); } /* Enable Quota feature if one of quota enabled */ if (!ext2fs_has_feature_quota(fs->super)) { ext2fs_set_feature_quota(fs->super); need_dirty = 1; } if (qtype == PRJQUOTA && !ext2fs_has_feature_project(fs->super)) { ext2fs_set_feature_project(fs->super); need_dirty = 1; } } else if (quota_enable[qtype] == QOPT_DISABLE) { retval = quota_remove_inode(fs, qtype); if (retval) { com_err(program_name, retval, _("while removing quota file (%d)"), qtype); exit(1); } if (qtype == PRJQUOTA) { ext2fs_clear_feature_project(fs->super); need_dirty = 1; } } } quota_release_context(&qctx); /* Clear Quota feature if all quota types disabled. */ if (!qtype_bits) { for (qtype = 0 ; qtype < MAXQUOTAS; qtype++) if (*quota_sb_inump(fs->super, qtype)) break; if (qtype == MAXQUOTAS) { ext2fs_clear_feature_quota(fs->super); need_dirty = 1; } } if (need_dirty) ext2fs_mark_super_dirty(fs); return; } static int option_handle_function(char *token) { if (strncmp(token, "usr", 3) == 0) { quota_enable[USRQUOTA] = QOPT_ENABLE; } else if (strncmp(token, "^usr", 4) == 0) { quota_enable[USRQUOTA] = QOPT_DISABLE; } else if (strncmp(token, "grp", 3) == 0) { quota_enable[GRPQUOTA] = QOPT_ENABLE; } else if (strncmp(token, "^grp", 4) == 0) { quota_enable[GRPQUOTA] = QOPT_DISABLE; } else if (strncmp(token, "prj", 3) == 0) { quota_enable[PRJQUOTA] = QOPT_ENABLE; } else if (strncmp(token, "^prj", 4) == 0) { quota_enable[PRJQUOTA] = QOPT_DISABLE; } else { fputs(_("\nBad quota options specified.\n\n" "Following valid quota options are available " "(pass by separating with comma):\n" "\t[^]usr[quota]\n" "\t[^]grp[quota]\n" "\t[^]prj[quota]\n" "\n\n"), stderr); return 1; } return 0; } static void parse_e2label_options(int argc, char ** argv) { if ((argc < 2) || (argc > 3)) { fputs(_("Usage: e2label device [newlabel]\n"), stderr); exit(1); } io_options = strchr(argv[1], '?'); if (io_options) *io_options++ = 0; device_name = blkid_get_devname(NULL, argv[1], NULL); if (!device_name) { com_err("e2label", 0, _("Unable to resolve '%s'"), argv[1]); exit(1); } open_flag = EXT2_FLAG_JOURNAL_DEV_OK; if (argc == 3) { open_flag |= EXT2_FLAG_RW; L_flag = 1; new_label = argv[2]; } else print_label++; } static time_t parse_time(char *str) { struct tm ts; if (strcmp(str, "now") == 0) { return (time(0)); } memset(&ts, 0, sizeof(ts)); #ifdef HAVE_STRPTIME strptime(str, "%Y%m%d%H%M%S", &ts); #else sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon, &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec); ts.tm_year -= 1900; ts.tm_mon -= 1; if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 || ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 || ts.tm_min > 59 || ts.tm_sec > 61) ts.tm_mday = 0; #endif if (ts.tm_mday == 0) { com_err(program_name, 0, _("Couldn't parse date/time specifier: %s"), str); usage(); } ts.tm_isdst = -1; return (mktime(&ts)); } static void parse_tune2fs_options(int argc, char **argv) { int c; char *tmp; struct group *gr; struct passwd *pw; int ret; char optstring[100] = "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:z:Q:"; open_flag = 0; printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE); while ((c = getopt(argc, argv, optstring)) != EOF) switch (c) { case 'c': max_mount_count = strtol(optarg, &tmp, 0); if (*tmp || max_mount_count > 16000) { com_err(program_name, 0, _("bad mounts count - %s"), optarg); usage(); } if (max_mount_count == 0) max_mount_count = -1; c_flag = 1; open_flag = EXT2_FLAG_RW; break; case 'C': mount_count = strtoul(optarg, &tmp, 0); if (*tmp || mount_count > 16000) { com_err(program_name, 0, _("bad mounts count - %s"), optarg); usage(); } C_flag = 1; open_flag = EXT2_FLAG_RW; break; case 'e': if (strcmp(optarg, "continue") == 0) errors = EXT2_ERRORS_CONTINUE; else if (strcmp(optarg, "remount-ro") == 0) errors = EXT2_ERRORS_RO; else if (strcmp(optarg, "panic") == 0) errors = EXT2_ERRORS_PANIC; else { com_err(program_name, 0, _("bad error behavior - %s"), optarg); usage(); } e_flag = 1; open_flag = EXT2_FLAG_RW; break; case 'E': extended_cmd = optarg; open_flag |= EXT2_FLAG_RW; break; case 'f': /* Force */ f_flag++; break; case 'g': resgid = strtoul(optarg, &tmp, 0); if (*tmp) { gr = getgrnam(optarg); if (gr == NULL) tmp = optarg; else { resgid = gr->gr_gid; *tmp = 0; } } if (*tmp) { com_err(program_name, 0, _("bad gid/group name - %s"), optarg); usage(); } g_flag = 1; open_flag = EXT2_FLAG_RW; break; case 'i': interval = strtoul(optarg, &tmp, 0); switch (*tmp) { case 's': tmp++; break; case '\0': case 'd': case 'D': /* days */ interval *= 86400; if (*tmp != '\0') tmp++; break; case 'm': case 'M': /* months! */ interval *= 86400 * 30; tmp++; break; case 'w': case 'W': /* weeks */ interval *= 86400 * 7; tmp++; break; } if (*tmp) { com_err(program_name, 0, _("bad interval - %s"), optarg); usage(); } i_flag = 1; open_flag = EXT2_FLAG_RW; break; case 'j': if (!journal_size) journal_size = -1; open_flag = EXT2_FLAG_RW; break; case 'J': parse_journal_opts(optarg); open_flag = EXT2_FLAG_RW; break; case 'l': l_flag = 1; break; case 'L': new_label = optarg; L_flag = 1; open_flag |= EXT2_FLAG_RW | EXT2_FLAG_JOURNAL_DEV_OK; break; case 'm': reserved_ratio = strtod(optarg, &tmp); if (*tmp || reserved_ratio > 50 || reserved_ratio < 0) { com_err(program_name, 0, _("bad reserved block ratio - %s"), optarg); usage(); } m_flag = 1; open_flag = EXT2_FLAG_RW; break; case 'M': new_last_mounted = optarg; M_flag = 1; open_flag = EXT2_FLAG_RW; break; case 'o': if (mntopts_cmd) { com_err(program_name, 0, "%s", _("-o may only be specified once")); usage(); } mntopts_cmd = optarg; open_flag = EXT2_FLAG_RW; break; case 'O': if (features_cmd) { com_err(program_name, 0, "%s", _("-O may only be specified once")); usage(); } features_cmd = optarg; open_flag = EXT2_FLAG_RW; break; case 'Q': Q_flag = 1; ret = parse_quota_opts(optarg, option_handle_function); if (ret) exit(1); open_flag = EXT2_FLAG_RW; break; case 'r': reserved_blocks = strtoul(optarg, &tmp, 0); if (*tmp) { com_err(program_name, 0, _("bad reserved blocks count - %s"), optarg); usage(); } r_flag = 1; open_flag = EXT2_FLAG_RW; break; case 's': /* Deprecated */ s_flag = atoi(optarg); open_flag = EXT2_FLAG_RW; break; case 'T': T_flag = 1; last_check_time = parse_time(optarg); open_flag = EXT2_FLAG_RW; break; case 'u': resuid = strtoul(optarg, &tmp, 0); if (*tmp) { pw = getpwnam(optarg); if (pw == NULL) tmp = optarg; else { resuid = pw->pw_uid; *tmp = 0; } } if (*tmp) { com_err(program_name, 0, _("bad uid/user name - %s"), optarg); usage(); } u_flag = 1; open_flag = EXT2_FLAG_RW; break; case 'U': new_UUID = optarg; U_flag = 1; open_flag = EXT2_FLAG_RW | EXT2_FLAG_JOURNAL_DEV_OK; break; case 'I': new_inode_size = strtoul(optarg, &tmp, 0); if (*tmp) { com_err(program_name, 0, _("bad inode size - %s"), optarg); usage(); } if (!((new_inode_size & (new_inode_size - 1)) == 0)) { com_err(program_name, 0, _("Inode size must be a " "power of two- %s"), optarg); usage(); } open_flag = EXT2_FLAG_RW; I_flag = 1; break; case 'z': undo_file = optarg; break; default: usage(); } if (optind < argc - 1 || optind == argc) usage(); if (!open_flag && !l_flag) usage(); io_options = strchr(argv[optind], '?'); if (io_options) *io_options++ = 0; device_name = blkid_get_devname(NULL, argv[optind], NULL); if (!device_name) { com_err(program_name, 0, _("Unable to resolve '%s'"), argv[optind]); exit(1); } } #ifdef CONFIG_BUILD_FINDFS void do_findfs(int argc, char **argv) { char *dev; if ((argc != 2) || (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) { fprintf(stderr, "Usage: findfs LABEL=