/* * mke2fs.c - Make a ext2fs filesystem. * * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, * 2003, 2004, 2005 by Theodore Ts'o. * * %Begin-Header% * This file may be redistributed under the terms of the GNU Public * License. * %End-Header% */ /* Usage: mke2fs [options] device * * The device may be a block device or a image of one, but this isn't * enforced (but it's not much fun on a character device :-). */ #include #include #include #include #include #ifdef __linux__ #include #endif #ifdef HAVE_GETOPT_H #include #else extern char *optarg; extern int optind; #endif #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_STDLIB_H #include #endif #ifdef HAVE_ERRNO_H #include #endif #ifdef HAVE_MNTENT_H #include #endif #include #include #include #include #include "ext2fs/ext2_fs.h" #include "et/com_err.h" #include "uuid/uuid.h" #include "e2p/e2p.h" #include "ext2fs/ext2fs.h" #include "util.h" #include "profile.h" #include "prof_err.h" #include "../version.h" #include "nls-enable.h" #define STRIDE_LENGTH 8 #ifndef __sparc__ #define ZAP_BOOTBLOCK #endif extern int isatty(int); extern FILE *fpopen(const char *cmd, const char *mode); const char * program_name = "mke2fs"; const char * device_name /* = NULL */; /* Command line options */ int cflag; int verbose; int quiet; int super_only; int force; int noaction; int journal_size; int journal_flags; int lazy_itable_init; char *bad_blocks_filename; __u32 fs_stride; struct ext2_super_block fs_param; char *creator_os; char *volume_label; char *mount_dir; char *journal_device; int sync_kludge; /* Set using the MKE2FS_SYNC env. option */ char **fs_types; profile_t profile; int sys_page_size = 4096; int linux_version_code = 0; static void usage(void) { fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] " "[-f fragment-size]\n\t[-i bytes-per-inode] [-I inode-size] " "[-J journal-options]\n" "\t[-G meta group size] [-N number-of-inodes]\n" "\t[-m reserved-blocks-percentage] [-o creator-os]\n" "\t[-g blocks-per-group] [-L volume-label] " "[-M last-mounted-directory]\n\t[-O feature[,...]] " "[-r fs-revision] [-E extended-option[,...]]\n" "\t[-T fs-type] [-jnqvFSV] device [blocks-count]\n"), program_name); exit(1); } static int int_log2(int arg) { int l = 0; arg >>= 1; while (arg) { l++; arg >>= 1; } return l; } static int int_log10(unsigned int arg) { int l; for (l=0; arg ; l++) arg = arg / 10; return l; } static int parse_version_number(const char *s) { int major, minor, rev; char *endptr; const char *cp = s; if (!s) return 0; major = strtol(cp, &endptr, 10); if (cp == endptr || *endptr != '.') return 0; cp = endptr + 1; minor = strtol(cp, &endptr, 10); if (cp == endptr || *endptr != '.') return 0; cp = endptr + 1; rev = strtol(cp, &endptr, 10); if (cp == endptr) return 0; return ((((major * 256) + minor) * 256) + rev); } /* * Helper function for read_bb_file and test_disk */ static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk) { fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk); return; } /* * Reads the bad blocks list from a file */ static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list, const char *bad_blocks_file) { FILE *f; errcode_t retval; f = fopen(bad_blocks_file, "r"); if (!f) { com_err("read_bad_blocks_file", errno, _("while trying to open %s"), bad_blocks_file); exit(1); } retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); fclose (f); if (retval) { com_err("ext2fs_read_bb_FILE", retval, _("while reading in list of bad blocks from file")); exit(1); } } /* * Runs the badblocks program to test the disk */ static void test_disk(ext2_filsys fs, badblocks_list *bb_list) { FILE *f; errcode_t retval; char buf[1024]; sprintf(buf, "badblocks -b %d -X %s%s%s %u", fs->blocksize, quiet ? "" : "-s ", (cflag > 1) ? "-w " : "", fs->device_name, fs->super->s_blocks_count-1); if (verbose) printf(_("Running command: %s\n"), buf); f = popen(buf, "r"); if (!f) { com_err("popen", errno, _("while trying to run '%s'"), buf); exit(1); } retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); pclose(f); if (retval) { com_err("ext2fs_read_bb_FILE", retval, _("while processing list of bad blocks from program")); exit(1); } } static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list) { dgrp_t i; blk_t j; unsigned must_be_good; blk_t blk; badblocks_iterate bb_iter; errcode_t retval; blk_t group_block; int group; int group_bad; if (!bb_list) return; /* * The primary superblock and group descriptors *must* be * good; if not, abort. */ must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks; for (i = fs->super->s_first_data_block; i <= must_be_good; i++) { if (ext2fs_badblocks_list_test(bb_list, i)) { fprintf(stderr, _("Block %d in primary " "superblock/group descriptor area bad.\n"), i); fprintf(stderr, _("Blocks %u through %u must be good " "in order to build a filesystem.\n"), fs->super->s_first_data_block, must_be_good); fputs(_("Aborting....\n"), stderr); exit(1); } } /* * See if any of the bad blocks are showing up in the backup * superblocks and/or group descriptors. If so, issue a * warning and adjust the block counts appropriately. */ group_block = fs->super->s_first_data_block + fs->super->s_blocks_per_group; for (i = 1; i < fs->group_desc_count; i++) { group_bad = 0; for (j=0; j < fs->desc_blocks+1; j++) { if (ext2fs_badblocks_list_test(bb_list, group_block + j)) { if (!group_bad) fprintf(stderr, _("Warning: the backup superblock/group descriptors at block %u contain\n" " bad blocks.\n\n"), group_block); group_bad++; group = ext2fs_group_of_blk(fs, group_block+j); fs->group_desc[group].bg_free_blocks_count++; ext2fs_group_desc_csum_set(fs, group); fs->super->s_free_blocks_count++; } } group_block += fs->super->s_blocks_per_group; } /* * Mark all the bad blocks as used... */ retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter); if (retval) { com_err("ext2fs_badblocks_list_iterate_begin", retval, _("while marking bad blocks as used")); exit(1); } while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) ext2fs_mark_block_bitmap(fs->block_map, blk); ext2fs_badblocks_list_iterate_end(bb_iter); } /* * These functions implement a generalized progress meter. */ struct progress_struct { char format[20]; char backup[80]; __u32 max; int skip_progress; }; static void progress_init(struct progress_struct *progress, const char *label,__u32 max) { int i; memset(progress, 0, sizeof(struct progress_struct)); if (quiet) return; /* * Figure out how many digits we need */ i = int_log10(max); sprintf(progress->format, "%%%dd/%%%dld", i, i); memset(progress->backup, '\b', sizeof(progress->backup)-1); progress->backup[sizeof(progress->backup)-1] = 0; if ((2*i)+1 < (int) sizeof(progress->backup)) progress->backup[(2*i)+1] = 0; progress->max = max; progress->skip_progress = 0; if (getenv("MKE2FS_SKIP_PROGRESS")) progress->skip_progress++; fputs(label, stdout); fflush(stdout); } static void progress_update(struct progress_struct *progress, __u32 val) { if ((progress->format[0] == 0) || progress->skip_progress) return; printf(progress->format, val, progress->max); fputs(progress->backup, stdout); } static void progress_close(struct progress_struct *progress) { if (progress->format[0] == 0) return; fputs(_("done \n"), stdout); } static void write_inode_tables(ext2_filsys fs, int lazy_flag) { errcode_t retval; blk_t blk; dgrp_t i; int num, ipb; struct progress_struct progress; if (quiet) memset(&progress, 0, sizeof(progress)); else progress_init(&progress, _("Writing inode tables: "), fs->group_desc_count); for (i = 0; i < fs->group_desc_count; i++) { progress_update(&progress, i); blk = fs->group_desc[i].bg_inode_table; num = fs->inode_blocks_per_group; if (lazy_flag) { ipb = fs->blocksize / EXT2_INODE_SIZE(fs->super); num = ((((fs->super->s_inodes_per_group - fs->group_desc[i].bg_itable_unused) * EXT2_INODE_SIZE(fs->super)) + EXT2_BLOCK_SIZE(fs->super) - 1) / EXT2_BLOCK_SIZE(fs->super)); } else { /* The kernel doesn't need to zero the itable blocks */ fs->group_desc[i].bg_flags |= EXT2_BG_INODE_ZEROED; ext2fs_group_desc_csum_set(fs, i); } retval = ext2fs_zero_blocks(fs, blk, num, &blk, &num); if (retval) { fprintf(stderr, _("\nCould not write %d " "blocks in inode table starting at %u: %s\n"), num, blk, error_message(retval)); exit(1); } if (sync_kludge) { if (sync_kludge == 1) sync(); else if ((i % sync_kludge) == 0) sync(); } } ext2fs_zero_blocks(0, 0, 0, 0, 0); progress_close(&progress); } static void create_root_dir(ext2_filsys fs) { errcode_t retval; struct ext2_inode inode; __u32 uid, gid; retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0); if (retval) { com_err("ext2fs_mkdir", retval, _("while creating root dir")); exit(1); } if (geteuid()) { retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode); if (retval) { com_err("ext2fs_read_inode", retval, _("while reading root inode")); exit(1); } uid = getuid(); inode.i_uid = uid; ext2fs_set_i_uid_high(inode, uid >> 16); if (uid) { gid = getgid(); inode.i_gid = gid; ext2fs_set_i_gid_high(inode, gid >> 16); } retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode); if (retval) { com_err("ext2fs_write_inode", retval, _("while setting root inode ownership")); exit(1); } } } static void create_lost_and_found(ext2_filsys fs) { unsigned int lpf_size = 0; errcode_t retval; ext2_ino_t ino; const char *name = "lost+found"; int i; fs->umask = 077; retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name); if (retval) { com_err("ext2fs_mkdir", retval, _("while creating /lost+found")); exit(1); } retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino); if (retval) { com_err("ext2_lookup", retval, _("while looking up /lost+found")); exit(1); } for (i=1; i < EXT2_NDIR_BLOCKS; i++) { /* Ensure that lost+found is at least 2 blocks, so we always * test large empty blocks for big-block filesystems. */ if ((lpf_size += fs->blocksize) >= 16*1024 && lpf_size >= 2 * fs->blocksize) break; retval = ext2fs_expand_dir(fs, ino); if (retval) { com_err("ext2fs_expand_dir", retval, _("while expanding /lost+found")); exit(1); } } } static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list) { errcode_t retval; ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_BAD_INO); ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0); retval = ext2fs_update_bb_inode(fs, bb_list); if (retval) { com_err("ext2fs_update_bb_inode", retval, _("while setting bad block inode")); exit(1); } } static void reserve_inodes(ext2_filsys fs) { ext2_ino_t i; int group; for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) ext2fs_inode_alloc_stats2(fs, i, +1, 0); ext2fs_mark_ib_dirty(fs); } #define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */ #define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */ #define BSD_LABEL_OFFSET 64 static void zap_sector(ext2_filsys fs, int sect, int nsect) { char *buf; int retval; unsigned int *magic; buf = malloc(512*nsect); if (!buf) { printf(_("Out of memory erasing sectors %d-%d\n"), sect, sect + nsect - 1); exit(1); } if (sect == 0) { /* Check for a BSD disklabel, and don't erase it if so */ retval = io_channel_read_blk(fs->io, 0, -512, buf); if (retval) fprintf(stderr, _("Warning: could not read block 0: %s\n"), error_message(retval)); else { magic = (unsigned int *) (buf + BSD_LABEL_OFFSET); if ((*magic == BSD_DISKMAGIC) || (*magic == BSD_MAGICDISK)) return; } } memset(buf, 0, 512*nsect); io_channel_set_blksize(fs->io, 512); retval = io_channel_write_blk(fs->io, sect, -512*nsect, buf); io_channel_set_blksize(fs->io, fs->blocksize); free(buf); if (retval) fprintf(stderr, _("Warning: could not erase sector %d: %s\n"), sect, error_message(retval)); } static void create_journal_dev(ext2_filsys fs) { struct progress_struct progress; errcode_t retval; char *buf; blk_t blk, err_blk; int c, count, err_count; retval = ext2fs_create_journal_superblock(fs, fs->super->s_blocks_count, 0, &buf); if (retval) { com_err("create_journal_dev", retval, _("while initializing journal superblock")); exit(1); } if (quiet) memset(&progress, 0, sizeof(progress)); else progress_init(&progress, _("Zeroing journal device: "), fs->super->s_blocks_count); blk = 0; count = fs->super->s_blocks_count; while (count > 0) { if (count > 1024) c = 1024; else c = count; retval = ext2fs_zero_blocks(fs, blk, c, &err_blk, &err_count); if (retval) { com_err("create_journal_dev", retval, _("while zeroing journal device " "(block %u, count %d)"), err_blk, err_count); exit(1); } blk += c; count -= c; progress_update(&progress, blk); } ext2fs_zero_blocks(0, 0, 0, 0, 0); retval = io_channel_write_blk(fs->io, fs->super->s_first_data_block+1, 1, buf); if (retval) { com_err("create_journal_dev", retval, _("while writing journal superblock")); exit(1); } progress_close(&progress); } static void show_stats(ext2_filsys fs) { struct ext2_super_block *s = fs->super; char buf[80]; char *os; blk_t group_block; dgrp_t i; int need, col_left; if (fs_param.s_blocks_count != s->s_blocks_count) fprintf(stderr, _("warning: %u blocks unused.\n\n"), fs_param.s_blocks_count - s->s_blocks_count); memset(buf, 0, sizeof(buf)); strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name)); printf(_("Filesystem label=%s\n"), buf); fputs(_("OS type: "), stdout); os = e2p_os2string(fs->super->s_creator_os); fputs(os, stdout); free(os); printf("\n"); printf(_("Block size=%u (log=%u)\n"), fs->blocksize, s->s_log_block_size); printf(_("Fragment size=%u (log=%u)\n"), fs->fragsize, s->s_log_frag_size); printf(_("%u inodes, %u blocks\n"), s->s_inodes_count, s->s_blocks_count); printf(_("%u blocks (%2.2f%%) reserved for the super user\n"), s->s_r_blocks_count, 100.0 * s->s_r_blocks_count / s->s_blocks_count); printf(_("First data block=%u\n"), s->s_first_data_block); if (s->s_reserved_gdt_blocks) printf(_("Maximum filesystem blocks=%lu\n"), (s->s_reserved_gdt_blocks + fs->desc_blocks) * EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group); if (fs->group_desc_count > 1) printf(_("%u block groups\n"), fs->group_desc_count); else printf(_("%u block group\n"), fs->group_desc_count); printf(_("%u blocks per group, %u fragments per group\n"), s->s_blocks_per_group, s->s_frags_per_group); printf(_("%u inodes per group\n"), s->s_inodes_per_group); if (fs->group_desc_count == 1) { printf("\n"); return; } printf(_("Superblock backups stored on blocks: ")); group_block = s->s_first_data_block; col_left = 0; for (i = 1; i < fs->group_desc_count; i++) { group_block += s->s_blocks_per_group; if (!ext2fs_bg_has_super(fs, i)) continue; if (i != 1) printf(", "); need = int_log10(group_block) + 2; if (need > col_left) { printf("\n\t"); col_left = 72; } col_left -= need; printf("%u", group_block); } printf("\n\n"); } /* * Set the S_CREATOR_OS field. Return true if OS is known, * otherwise, 0. */ static int set_os(struct ext2_super_block *sb, char *os) { if (isdigit (*os)) sb->s_creator_os = atoi (os); else if (strcasecmp(os, "linux") == 0) sb->s_creator_os = EXT2_OS_LINUX; else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0) sb->s_creator_os = EXT2_OS_HURD; else if (strcasecmp(os, "freebsd") == 0) sb->s_creator_os = EXT2_OS_FREEBSD; else if (strcasecmp(os, "lites") == 0) sb->s_creator_os = EXT2_OS_LITES; else return 0; return 1; } #define PATH_SET "PATH=/sbin" static void parse_extended_opts(struct ext2_super_block *param, const char *opts) { char *buf, *token, *next, *p, *arg, *badopt = 0; int len; int r_usage = 0; len = strlen(opts); buf = malloc(len+1); if (!buf) { fprintf(stderr, _("Couldn't allocate memory to parse options!\n")); exit(1); } strcpy(buf, opts); for (token = buf; token && *token; token = next) { p = strchr(token, ','); next = 0; if (p) { *p = 0; next = p+1; } arg = strchr(token, '='); if (arg) { *arg = 0; arg++; } if (strcmp(token, "stride") == 0) { if (!arg) { r_usage++; badopt = token; continue; } param->s_raid_stride = strtoul(arg, &p, 0); if (*p || (param->s_raid_stride == 0)) { fprintf(stderr, _("Invalid stride parameter: %s\n"), arg); r_usage++; continue; } } else if (strcmp(token, "stripe-width") == 0 || strcmp(token, "stripe_width") == 0) { if (!arg) { r_usage++; badopt = token; continue; } param->s_raid_stripe_width = strtoul(arg, &p, 0); if (*p || (param->s_raid_stripe_width == 0)) { fprintf(stderr, _("Invalid stripe-width parameter: %s\n"), arg); r_usage++; continue; } } else if (!strcmp(token, "resize")) { unsigned long resize, bpg, rsv_groups; unsigned long group_desc_count, desc_blocks; unsigned int gdpb, blocksize; int rsv_gdb; if (!arg) { r_usage++; badopt = token; continue; } resize = parse_num_blocks(arg, param->s_log_block_size); if (resize == 0) { fprintf(stderr, _("Invalid resize parameter: %s\n"), arg); r_usage++; continue; } if (resize <= param->s_blocks_count) { fprintf(stderr, _("The resize maximum must be greater " "than the filesystem size.\n")); r_usage++; continue; } blocksize = EXT2_BLOCK_SIZE(param); bpg = param->s_blocks_per_group; if (!bpg) bpg = blocksize * 8; gdpb = EXT2_DESC_PER_BLOCK(param); group_desc_count = ext2fs_div_ceil(param->s_blocks_count, bpg); desc_blocks = (group_desc_count + gdpb - 1) / gdpb; rsv_groups = ext2fs_div_ceil(resize, bpg); rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) - desc_blocks; if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param)) rsv_gdb = EXT2_ADDR_PER_BLOCK(param); if (rsv_gdb > 0) { if (param->s_rev_level == EXT2_GOOD_OLD_REV) { fprintf(stderr, _("On-line resizing not supported with revision 0 filesystems\n")); free(buf); exit(1); } param->s_feature_compat |= EXT2_FEATURE_COMPAT_RESIZE_INODE; param->s_reserved_gdt_blocks = rsv_gdb; } } else if (!strcmp(token, "test_fs")) { param->s_flags |= EXT2_FLAGS_TEST_FILESYS; } else if (!strcmp(token, "lazy_itable_init")) { if (arg) lazy_itable_init = strtoul(arg, &p, 0); else lazy_itable_init = 1; } else { r_usage++; badopt = token; } } if (r_usage) { fprintf(stderr, _("\nBad option(s) specified: %s\n\n" "Extended options are separated by commas, " "and may take an argument which\n" "\tis set off by an equals ('=') sign.\n\n" "Valid extended options are:\n" "\tstride=\n" "\tstripe-width=\n" "\tresize=\n" "\tlazy_itable_init=<0 to disable, 1 to enable>\n" "\ttest_fs\n\n"), badopt ? badopt : ""); free(buf); exit(1); } if (param->s_raid_stride && (param->s_raid_stripe_width % param->s_raid_stride) != 0) fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even " "multiple of stride %u.\n\n"), param->s_raid_stripe_width, param->s_raid_stride); free(buf); } static __u32 ok_features[3] = { /* Compat */ EXT3_FEATURE_COMPAT_HAS_JOURNAL | EXT2_FEATURE_COMPAT_RESIZE_INODE | EXT2_FEATURE_COMPAT_DIR_INDEX | EXT2_FEATURE_COMPAT_EXT_ATTR, /* Incompat */ EXT2_FEATURE_INCOMPAT_FILETYPE| EXT3_FEATURE_INCOMPAT_EXTENTS| EXT3_FEATURE_INCOMPAT_JOURNAL_DEV| EXT2_FEATURE_INCOMPAT_META_BG| EXT4_FEATURE_INCOMPAT_FLEX_BG, /* R/O compat */ EXT2_FEATURE_RO_COMPAT_LARGE_FILE| EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| EXT4_FEATURE_RO_COMPAT_GDT_CSUM }; static void syntax_err_report(const char *filename, long err, int line_num) { fprintf(stderr, _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"), filename, line_num, error_message(err)); exit(1); } static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 }; static void edit_feature(const char *str, __u32 *compat_array) { if (!str) return; if (e2p_edit_feature(str, compat_array, ok_features)) { fprintf(stderr, _("Invalid filesystem option set: %s\n"), str); exit(1); } } struct str_list { char **list; int num; int max; }; static errcode_t init_list(struct str_list *sl) { sl->num = 0; sl->max = 0; sl->list = malloc((sl->max+1) * sizeof(char *)); if (!sl->list) return ENOMEM; sl->list[0] = 0; return 0; } static errcode_t push_string(struct str_list *sl, const char *str) { char **new_list; if (sl->num >= sl->max) { sl->max += 2; new_list = realloc(sl->list, (sl->max+1) * sizeof(char *)); if (!new_list) return ENOMEM; sl->list = new_list; } sl->list[sl->num] = malloc(strlen(str)+1); if (sl->list[sl->num] == 0) return ENOMEM; strcpy(sl->list[sl->num], str); sl->num++; sl->list[sl->num] = 0; return 0; } static void print_str_list(char **list) { char **cpp; for (cpp = list; *cpp; cpp++) { printf("'%s'", *cpp); if (cpp[1]) fputs(", ", stdout); } fputc('\n', stdout); } static char **parse_fs_type(const char *fs_type, const char *usage_types, struct ext2_super_block *fs_param, char *progname) { const char *ext_type = 0; char *parse_str; char *profile_type = 0; char *cp, *t; const char *size_type; struct str_list list; int state = 0; unsigned long meg; if (init_list(&list)) return 0; if (fs_type) ext_type = fs_type; else if (progname) { ext_type = strrchr(progname, '/'); if (ext_type) ext_type++; else ext_type = progname; if (!strncmp(ext_type, "mkfs.", 5)) { ext_type += 5; if (ext_type[0] == 0) ext_type = 0; } else ext_type = 0; } if (!ext_type) { profile_get_string(profile, "defaults", "fs_type", 0, "ext2", &profile_type); ext_type = profile_type; if (!strcmp(ext_type, "ext2") && (journal_size != 0)) ext_type = "ext3"; } meg = (1024 * 1024) / EXT2_BLOCK_SIZE(fs_param); if (fs_param->s_blocks_count < 3 * meg) size_type = "floppy"; else if (fs_param->s_blocks_count < 512 * meg) size_type = "small"; else size_type = "default"; if (!usage_types) usage_types = size_type; parse_str = malloc(usage_types ? strlen(usage_types)+1 : 1); if (!parse_str) { free(list.list); return 0; } if (usage_types) strcpy(parse_str, usage_types); else *parse_str = '\0'; if (ext_type) push_string(&list, ext_type); cp = parse_str; while (1) { t = strchr(cp, ','); if (t) *t = '\0'; if (*cp) push_string(&list, cp); if (t) cp = t+1; else { cp = ""; break; } } free(parse_str); if (profile_type) free(profile_type); return (list.list); } static char *get_string_from_profile(char **fs_types, const char *opt, const char *def_val) { char *ret = 0; char **cpp; int i; for (i=0; fs_types[i]; i++); for (i-=1; i >=0 ; i--) { profile_get_string(profile, "fs_types", fs_types[i], opt, 0, &ret); if (ret) return ret; } profile_get_string(profile, "defaults", opt, 0, def_val, &ret); return (ret); } static int get_int_from_profile(char **fs_types, const char *opt, int def_val) { int ret; char **cpp; profile_get_integer(profile, "defaults", opt, 0, def_val, &ret); for (cpp = fs_types; *cpp; cpp++) profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret); return ret; } static int get_bool_from_profile(char **fs_types, const char *opt, int def_val) { int ret; char **cpp; profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret); for (cpp = fs_types; *cpp; cpp++) profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret); return ret; } extern const char *mke2fs_default_profile; static const char *default_files[] = { "", 0 }; static void PRS(int argc, char *argv[]) { int b, c; int size; char *tmp, *tmp2, **cpp; int blocksize = 0; int inode_ratio = 0; int inode_size = 0; unsigned long flex_bg_size = 0; double reserved_ratio = 5.0; int sector_size = 0; int show_version_only = 0; unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */ errcode_t retval; char * oldpath = getenv("PATH"); char * extended_opts = 0; const char * fs_type = 0; const char * usage_types = 0; blk_t dev_size; #ifdef __linux__ struct utsname ut; #endif long sysval; int s_opt = -1, r_opt = -1; char *fs_features = 0; int use_bsize; char *newpath; int pathlen = sizeof(PATH_SET) + 1; if (oldpath) pathlen += strlen(oldpath); newpath = malloc(pathlen); strcpy(newpath, PATH_SET); /* Update our PATH to include /sbin */ if (oldpath) { strcat (newpath, ":"); strcat (newpath, oldpath); } putenv (newpath); tmp = getenv("MKE2FS_SYNC"); if (tmp) sync_kludge = atoi(tmp); /* Determine the system page size if possible */ #ifdef HAVE_SYSCONF #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE)) #define _SC_PAGESIZE _SC_PAGE_SIZE #endif #ifdef _SC_PAGESIZE sysval = sysconf(_SC_PAGESIZE); if (sysval > 0) sys_page_size = sysval; #endif /* _SC_PAGESIZE */ #endif /* HAVE_SYSCONF */ if ((tmp = getenv("MKE2FS_CONFIG")) != NULL) config_fn[0] = tmp; profile_set_syntax_err_cb(syntax_err_report); retval = profile_init(config_fn, &profile); if (retval == ENOENT) { profile_init(default_files, &profile); profile_set_default(profile, mke2fs_default_profile); } setbuf(stdout, NULL); setbuf(stderr, NULL); add_error_table(&et_ext2_error_table); add_error_table(&et_prof_error_table); memset(&fs_param, 0, sizeof(struct ext2_super_block)); fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */ #ifdef __linux__ if (uname(&ut)) { perror("uname"); exit(1); } linux_version_code = parse_version_number(ut.release); if (linux_version_code && linux_version_code < (2*65536 + 2*256)) fs_param.s_rev_level = 0; #endif if (argc && *argv) { program_name = get_progname(*argv); /* If called as mkfs.ext3, create a journal inode */ if (!strcmp(program_name, "mkfs.ext3")) journal_size = -1; } while ((c = getopt (argc, argv, "b:cf:g:G:i:jl:m:no:qr:s:t:vE:FI:J:L:M:N:O:R:ST:V")) != EOF) { switch (c) { case 'b': blocksize = strtol(optarg, &tmp, 0); b = (blocksize > 0) ? blocksize : -blocksize; if (b < EXT2_MIN_BLOCK_SIZE || b > EXT2_MAX_BLOCK_SIZE || *tmp) { com_err(program_name, 0, _("invalid block size - %s"), optarg); exit(1); } if (blocksize > 4096) fprintf(stderr, _("Warning: blocksize %d not " "usable on most systems.\n"), blocksize); if (blocksize > 0) fs_param.s_log_block_size = int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); break; case 'c': /* Check for bad blocks */ cflag++; break; case 'f': size = strtoul(optarg, &tmp, 0); if (size < EXT2_MIN_BLOCK_SIZE || size > EXT2_MAX_BLOCK_SIZE || *tmp) { com_err(program_name, 0, _("invalid fragment size - %s"), optarg); exit(1); } fs_param.s_log_frag_size = int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE); fprintf(stderr, _("Warning: fragments not supported. " "Ignoring -f option\n")); break; case 'g': fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0); if (*tmp) { com_err(program_name, 0, _("Illegal number for blocks per group")); exit(1); } if ((fs_param.s_blocks_per_group % 8) != 0) { com_err(program_name, 0, _("blocks per group must be multiple of 8")); exit(1); } break; case 'G': flex_bg_size = strtoul(optarg, &tmp, 0); if (*tmp) { com_err(program_name, 0, _("Illegal number for flex_bg size")); exit(1); } if (flex_bg_size < 2 || (flex_bg_size & (flex_bg_size-1)) != 0) { com_err(program_name, 0, _("flex_bg size must be a power of 2")); exit(1); } break; case 'i': inode_ratio = strtoul(optarg, &tmp, 0); if (inode_ratio < EXT2_MIN_BLOCK_SIZE || inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 || *tmp) { com_err(program_name, 0, _("invalid inode ratio %s (min %d/max %d)"), optarg, EXT2_MIN_BLOCK_SIZE, EXT2_MAX_BLOCK_SIZE); exit(1); } break; case 'J': parse_journal_opts(optarg); break; case 'j': if (!journal_size) journal_size = -1; break; case 'l': bad_blocks_filename = malloc(strlen(optarg)+1); if (!bad_blocks_filename) { com_err(program_name, ENOMEM, _("in malloc for bad_blocks_filename")); exit(1); } strcpy(bad_blocks_filename, optarg); break; case 'm': reserved_ratio = strtod(optarg, &tmp); if (reserved_ratio > 50 || *tmp) { com_err(program_name, 0, _("invalid reserved blocks percent - %s"), optarg); exit(1); } break; case 'n': noaction++; break; case 'o': creator_os = optarg; break; case 'q': quiet = 1; break; case 'r': r_opt = strtoul(optarg, &tmp, 0); if (*tmp) { com_err(program_name, 0, _("bad revision level - %s"), optarg); exit(1); } fs_param.s_rev_level = r_opt; break; case 's': /* deprecated */ s_opt = atoi(optarg); break; case 'I': inode_size = strtoul(optarg, &tmp, 0); if (*tmp) { com_err(program_name, 0, _("invalid inode size - %s"), optarg); exit(1); } break; case 'v': verbose = 1; break; case 'F': force++; break; case 'L': volume_label = optarg; break; case 'M': mount_dir = optarg; break; case 'N': num_inodes = strtoul(optarg, &tmp, 0); if (*tmp) { com_err(program_name, 0, _("bad num inodes - %s"), optarg); exit(1); } break; case 'O': fs_features = optarg; break; case 'E': case 'R': extended_opts = optarg; break; case 'S': super_only = 1; break; case 't': fs_type = optarg; break; case 'T': usage_types = optarg; break; case 'V': /* Print version number and exit */ show_version_only++; break; default: usage(); } } if ((optind == argc) && !show_version_only) usage(); device_name = argv[optind++]; if (!quiet || show_version_only) fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE); if (show_version_only) { fprintf(stderr, _("\tUsing %s\n"), error_message(EXT2_ET_BASE)); exit(0); } /* * If there's no blocksize specified and there is a journal * device, use it to figure out the blocksize */ if (blocksize <= 0 && journal_device) { ext2_filsys jfs; io_manager io_ptr; #ifdef CONFIG_TESTIO_DEBUG io_ptr = test_io_manager; test_io_backing_manager = unix_io_manager; #else io_ptr = unix_io_manager; #endif retval = ext2fs_open(journal_device, EXT2_FLAG_JOURNAL_DEV_OK, 0, 0, io_ptr, &jfs); if (retval) { com_err(program_name, retval, _("while trying to open journal device %s\n"), journal_device); exit(1); } if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) { com_err(program_name, 0, _("Journal dev blocksize (%d) smaller than " "minimum blocksize %d\n"), jfs->blocksize, -blocksize); exit(1); } blocksize = jfs->blocksize; fs_param.s_log_block_size = int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); ext2fs_close(jfs); } if (blocksize > sys_page_size) { if (!force) { com_err(program_name, 0, _("%d-byte blocks too big for system (max %d)"), blocksize, sys_page_size); proceed_question(); } fprintf(stderr, _("Warning: %d-byte blocks too big for system " "(max %d), forced to continue\n"), blocksize, sys_page_size); } if (optind < argc) { fs_param.s_blocks_count = parse_num_blocks(argv[optind++], fs_param.s_log_block_size); if (!fs_param.s_blocks_count) { com_err(program_name, 0, _("invalid blocks count - %s"), argv[optind - 1]); exit(1); } } if (optind < argc) usage(); if (!force) check_plausibility(device_name); check_mount(device_name, force, _("filesystem")); fs_param.s_log_frag_size = fs_param.s_log_block_size; if (noaction && fs_param.s_blocks_count) { dev_size = fs_param.s_blocks_count; retval = 0; } else { retry: retval = ext2fs_get_device_size(device_name, EXT2_BLOCK_SIZE(&fs_param), &dev_size); if ((retval == EFBIG) && (blocksize == 0) && (fs_param.s_log_block_size == 0)) { fs_param.s_log_block_size = 2; blocksize = 4096; goto retry; } } if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) { com_err(program_name, retval, _("while trying to determine filesystem size")); exit(1); } if (!fs_param.s_blocks_count) { if (retval == EXT2_ET_UNIMPLEMENTED) { com_err(program_name, 0, _("Couldn't determine device size; you " "must specify\nthe size of the " "filesystem\n")); exit(1); } else { if (dev_size == 0) { com_err(program_name, 0, _("Device size reported to be zero. " "Invalid partition specified, or\n\t" "partition table wasn't reread " "after running fdisk, due to\n\t" "a modified partition being busy " "and in use. You may need to reboot\n\t" "to re-read your partition table.\n" )); exit(1); } fs_param.s_blocks_count = dev_size; if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param)) fs_param.s_blocks_count &= ~((sys_page_size / EXT2_BLOCK_SIZE(&fs_param))-1); } } else if (!force && (fs_param.s_blocks_count > dev_size)) { com_err(program_name, 0, _("Filesystem larger than apparent device size.")); proceed_question(); } fs_types = parse_fs_type(fs_type, usage_types, &fs_param, argv[0]); if (!fs_types) { fprintf(stderr, _("Failed to parse fs types list\n")); exit(1); } if (verbose) { fputs("Fs_types for mke2fs.conf resolution: ", stdout); print_str_list(fs_types); } if (!fs_type) { int megs = (__u64)fs_param.s_blocks_count * (EXT2_BLOCK_SIZE(&fs_param) / 1024) / 1024; if (fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) fs_type = "journal"; else if (megs <= 3) fs_type = "floppy"; else if (megs <= 512) fs_type = "small"; else fs_type = "default"; } /* Figure out what features should be enabled */ tmp = NULL; if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) { tmp = get_string_from_profile(fs_types, "base_features", "sparse_super,filetype,resize_inode,dir_index"); edit_feature(tmp, &fs_param.s_feature_compat); free(tmp); for (cpp = fs_types; *cpp; cpp++) { tmp = NULL; profile_get_string(profile, "fs_types", *cpp, "features", "", &tmp); if (tmp && *tmp) edit_feature(tmp, &fs_param.s_feature_compat); if (tmp) free(tmp); } tmp = get_string_from_profile(fs_types, "default_features", ""); } edit_feature(fs_features ? fs_features : tmp, &fs_param.s_feature_compat); if (tmp) free(tmp); if (r_opt == EXT2_GOOD_OLD_REV && (fs_param.s_feature_compat || fs_param.s_feature_incompat || fs_param.s_feature_incompat)) { fprintf(stderr, _("Filesystem features not supported " "with revision 0 filesystems\n")); exit(1); } if (s_opt > 0) { if (r_opt == EXT2_GOOD_OLD_REV) { fprintf(stderr, _("Sparse superblocks not supported " "with revision 0 filesystems\n")); exit(1); } fs_param.s_feature_ro_compat |= EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; } else if (s_opt == 0) fs_param.s_feature_ro_compat &= ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; if (journal_size != 0) { if (r_opt == EXT2_GOOD_OLD_REV) { fprintf(stderr, _("Journals not supported " "with revision 0 filesystems\n")); exit(1); } fs_param.s_feature_compat |= EXT3_FEATURE_COMPAT_HAS_JOURNAL; } if (fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { reserved_ratio = 0; fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV; fs_param.s_feature_compat = 0; fs_param.s_feature_ro_compat = 0; } if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) && (fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE)) { fprintf(stderr, _("The resize_inode and meta_bg features " "are not compatible.\n" "They can not be both enabled " "simultaneously.\n")); exit(1); } /* Set first meta blockgroup via an environment variable */ /* (this is mostly for debugging purposes) */ if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) && ((tmp = getenv("MKE2FS_FIRST_META_BG")))) fs_param.s_first_meta_bg = atoi(tmp); /* Get the hardware sector size, if available */ retval = ext2fs_get_device_sectsize(device_name, §or_size); if (retval) { com_err(program_name, retval, _("while trying to determine hardware sector size")); exit(1); } if ((tmp = getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL) sector_size = atoi(tmp); if (blocksize <= 0) { use_bsize = get_int_from_profile(fs_types, "blocksize", 4096); if (use_bsize == -1) { use_bsize = sys_page_size; if ((linux_version_code < (2*65536 + 6*256)) && (use_bsize > 4096)) use_bsize = 4096; } if (sector_size && use_bsize < sector_size) use_bsize = sector_size; if ((blocksize < 0) && (use_bsize < (-blocksize))) use_bsize = -blocksize; blocksize = use_bsize; fs_param.s_blocks_count /= blocksize / 1024; } if (inode_ratio == 0) { inode_ratio = get_int_from_profile(fs_types, "inode_ratio", 8192); if (inode_ratio < blocksize) inode_ratio = blocksize; } fs_param.s_log_frag_size = fs_param.s_log_block_size = int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); blocksize = EXT2_BLOCK_SIZE(&fs_param); lazy_itable_init = get_bool_from_profile(fs_types, "lazy_itable_init", 0); /* Get options from profile */ for (cpp = fs_types; *cpp; cpp++) { tmp = NULL; profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp); if (tmp && *tmp) parse_extended_opts(&fs_param, tmp); if (tmp) free(tmp); } if (extended_opts) parse_extended_opts(&fs_param, extended_opts); /* Since sparse_super is the default, we would only have a problem * here if it was explicitly disabled. */ if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) && !(fs_param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) { com_err(program_name, 0, _("reserved online resize blocks not supported " "on non-sparse filesystem")); exit(1); } if (fs_param.s_blocks_per_group) { if (fs_param.s_blocks_per_group < 256 || fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) { com_err(program_name, 0, _("blocks per group count out of range")); exit(1); } } if (inode_size == 0) inode_size = get_int_from_profile(fs_types, "inode_size", 0); if (!flex_bg_size && (fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_FLEX_BG)) flex_bg_size = get_int_from_profile(fs_types, "flex_bg_size", 16); if (flex_bg_size) { if (!(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_FLEX_BG)) { com_err(program_name, 0, _("Flex_bg feature not enabled, so " "flex_bg size may not be specified")); exit(1); } fs_param.s_log_groups_per_flex = int_log2(flex_bg_size); } if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) { if (inode_size < EXT2_GOOD_OLD_INODE_SIZE || inode_size > EXT2_BLOCK_SIZE(&fs_param) || inode_size & (inode_size - 1)) { com_err(program_name, 0, _("invalid inode size %d (min %d/max %d)"), inode_size, EXT2_GOOD_OLD_INODE_SIZE, blocksize); exit(1); } fs_param.s_inode_size = inode_size; } /* Make sure number of inodes specified will fit in 32 bits */ if (num_inodes == 0) { unsigned long long n; n = (unsigned long long) fs_param.s_blocks_count * blocksize / inode_ratio; if (n > ~0U) { com_err(program_name, 0, _("too many inodes (%llu), raise inode ratio?"), n); exit(1); } } else if (num_inodes > ~0U) { com_err(program_name, 0, _("too many inodes (%llu), specify < 2^32 inodes"), num_inodes); exit(1); } /* * Calculate number of inodes based on the inode ratio */ fs_param.s_inodes_count = num_inodes ? num_inodes : ((__u64) fs_param.s_blocks_count * blocksize) / inode_ratio; if ((((long long)fs_param.s_inodes_count) * (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >= (((long long)fs_param.s_blocks_count) * EXT2_BLOCK_SIZE(&fs_param))) { com_err(program_name, 0, _("inode_size (%u) * inodes_count " "(%u) too big for a\n\t" "filesystem with %lu blocks, " "specify higher inode_ratio (-i)\n\t" "or lower inode count (-N).\n"), inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE, fs_param.s_inodes_count, (unsigned long) fs_param.s_blocks_count); exit(1); } /* * Calculate number of blocks to reserve */ fs_param.s_r_blocks_count = e2p_percent(reserved_ratio, fs_param.s_blocks_count); } static int should_do_undo(const char *name) { errcode_t retval; io_channel channel; __u16 s_magic; struct ext2_super_block super; io_manager manager = unix_io_manager; int csum_flag, force_undo; csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(&fs_param, EXT4_FEATURE_RO_COMPAT_GDT_CSUM); force_undo = get_int_from_profile(fs_types, "force_undo", 0); if (!force_undo && (!csum_flag || !lazy_itable_init)) return 0; retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel); if (retval) { /* * We don't handle error cases instead we * declare that the file system doesn't exist * and let the rest of mke2fs take care of * error */ retval = 0; goto open_err_out; } io_channel_set_blksize(channel, SUPERBLOCK_OFFSET); retval = io_channel_read_blk(channel, 1, -SUPERBLOCK_SIZE, &super); if (retval) { retval = 0; goto err_out; } #if defined(WORDS_BIGENDIAN) s_magic = ext2fs_swab16(super.s_magic); #else s_magic = super.s_magic; #endif if (s_magic == EXT2_SUPER_MAGIC) retval = 1; err_out: io_channel_close(channel); open_err_out: return retval; } static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr) { errcode_t retval = 0; char *tdb_dir, tdb_file[PATH_MAX]; char *device_name, *tmp_name; /* * Configuration via a conf file would be * nice */ tdb_dir = getenv("E2FSPROGS_UNDO_DIR"); if (!tdb_dir) profile_get_string(profile, "defaults", "undo_dir", 0, "/var/lib/e2fsprogs", &tdb_dir); if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || access(tdb_dir, W_OK)) return 0; tmp_name = strdup(name); device_name = basename(tmp_name); sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, device_name); if (!access(tdb_file, F_OK)) { if (unlink(tdb_file) < 0) { retval = errno; com_err(program_name, retval, _("while trying to delete %s"), tdb_file); return retval; } } set_undo_io_backing_manager(*io_ptr); *io_ptr = undo_io_manager; set_undo_io_backup_file(tdb_file); printf(_("Overwriting existing filesystem; this can be undone " "using the command:\n" " e2undo %s %s\n\n"), tdb_file, name); err_out: free(tmp_name); return retval; } int main (int argc, char *argv[]) { errcode_t retval = 0; ext2_filsys fs; badblocks_list bb_list = 0; unsigned int journal_blocks; unsigned int i; int val; io_manager io_ptr; char tdb_string[40]; #ifdef ENABLE_NLS setlocale(LC_MESSAGES, ""); setlocale(LC_CTYPE, ""); bindtextdomain(NLS_CAT_NAME, LOCALEDIR); textdomain(NLS_CAT_NAME); #endif PRS(argc, argv); #ifdef CONFIG_TESTIO_DEBUG io_ptr = test_io_manager; test_io_backing_manager = unix_io_manager; #else io_ptr = unix_io_manager; #endif if (should_do_undo(device_name)) { retval = mke2fs_setup_tdb(device_name, &io_ptr); if (retval) exit(1); } /* * Initialize the superblock.... */ retval = ext2fs_initialize(device_name, EXT2_FLAG_EXCLUSIVE, &fs_param, io_ptr, &fs); if (retval) { com_err(device_name, retval, _("while setting up superblock")); exit(1); } sprintf(tdb_string, "tdb_data_size=%d", fs->blocksize <= 4096 ? 32768 : fs->blocksize * 8); io_channel_set_options(fs->io, tdb_string); if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS) fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS; /* * Wipe out the old on-disk superblock */ if (!noaction) zap_sector(fs, 2, 6); /* * Generate a UUID for it... */ uuid_generate(fs->super->s_uuid); /* * Initialize the directory index variables */ fs->super->s_def_hash_version = EXT2_HASH_TEA; uuid_generate((unsigned char *) fs->super->s_hash_seed); /* * Add "jitter" to the superblock's check interval so that we * don't check all the filesystems at the same time. We use a * kludgy hack of using the UUID to derive a random jitter value. */ for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++) val += fs->super->s_uuid[i]; fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT; /* * Override the creator OS, if applicable */ if (creator_os && !set_os(fs->super, creator_os)) { com_err (program_name, 0, _("unknown os - %s"), creator_os); exit(1); } /* * For the Hurd, we will turn off filetype since it doesn't * support it. */ if (fs->super->s_creator_os == EXT2_OS_HURD) fs->super->s_feature_incompat &= ~EXT2_FEATURE_INCOMPAT_FILETYPE; /* * Set the volume label... */ if (volume_label) { memset(fs->super->s_volume_name, 0, sizeof(fs->super->s_volume_name)); strncpy(fs->super->s_volume_name, volume_label, sizeof(fs->super->s_volume_name)); } /* * Set the last mount directory */ if (mount_dir) { memset(fs->super->s_last_mounted, 0, sizeof(fs->super->s_last_mounted)); strncpy(fs->super->s_last_mounted, mount_dir, sizeof(fs->super->s_last_mounted)); } if (!quiet || noaction) show_stats(fs); if (noaction) exit(0); if (fs->super->s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { create_journal_dev(fs); exit(ext2fs_close(fs) ? 1 : 0); } if (bad_blocks_filename) read_bb_file(fs, &bb_list, bad_blocks_filename); if (cflag) test_disk(fs, &bb_list); handle_bad_blocks(fs, bb_list); fs->stride = fs_stride = fs->super->s_raid_stride; retval = ext2fs_allocate_tables(fs); if (retval) { com_err(program_name, retval, _("while trying to allocate filesystem tables")); exit(1); } if (super_only) { fs->super->s_state |= EXT2_ERROR_FS; fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY); } else { /* rsv must be a power of two (64kB is MD RAID sb alignment) */ unsigned int rsv = 65536 / fs->blocksize; unsigned long blocks = fs->super->s_blocks_count; unsigned long start; blk_t ret_blk; #ifdef ZAP_BOOTBLOCK zap_sector(fs, 0, 2); #endif /* * Wipe out any old MD RAID (or other) metadata at the end * of the device. This will also verify that the device is * as large as we think. Be careful with very small devices. */ start = (blocks & ~(rsv - 1)); if (start > rsv) start -= rsv; if (start > 0) retval = ext2fs_zero_blocks(fs, start, blocks - start, &ret_blk, NULL); if (retval) { com_err(program_name, retval, _("while zeroing block %u at end of filesystem"), ret_blk); } write_inode_tables(fs, lazy_itable_init); create_root_dir(fs); create_lost_and_found(fs); reserve_inodes(fs); create_bad_block_inode(fs, bb_list); if (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) { retval = ext2fs_create_resize_inode(fs); if (retval) { com_err("ext2fs_create_resize_inode", retval, _("while reserving blocks for online resize")); exit(1); } } } if (journal_device) { ext2_filsys jfs; if (!force) check_plausibility(journal_device); check_mount(journal_device, force, _("journal")); retval = ext2fs_open(journal_device, EXT2_FLAG_RW| EXT2_FLAG_JOURNAL_DEV_OK, 0, fs->blocksize, unix_io_manager, &jfs); if (retval) { com_err(program_name, retval, _("while trying to open journal device %s\n"), journal_device); exit(1); } if (!quiet) { printf(_("Adding journal to device %s: "), journal_device); fflush(stdout); } retval = ext2fs_add_journal_device(fs, jfs); if(retval) { com_err (program_name, retval, _("\n\twhile trying to add journal to device %s"), journal_device); exit(1); } if (!quiet) printf(_("done\n")); ext2fs_close(jfs); free(journal_device); } else if ((journal_size) || (fs_param.s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { journal_blocks = figure_journal_size(journal_size, fs); if (!journal_blocks) { fs->super->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; goto no_journal; } if (!quiet) { printf(_("Creating journal (%u blocks): "), journal_blocks); fflush(stdout); } retval = ext2fs_add_journal_inode(fs, journal_blocks, journal_flags); if (retval) { com_err (program_name, retval, _("\n\twhile trying to create journal")); exit(1); } if (!quiet) printf(_("done\n")); } no_journal: if (!quiet) printf(_("Writing superblocks and " "filesystem accounting information: ")); retval = ext2fs_flush(fs); if (retval) { fprintf(stderr, _("\nWarning, had trouble writing out superblocks.")); } if (!quiet) { printf(_("done\n\n")); if (!getenv("MKE2FS_SKIP_CHECK_MSG")) print_check_message(fs); } val = ext2fs_close(fs); remove_error_table(&et_ext2_error_table); remove_error_table(&et_prof_error_table); profile_release(profile); return (retval || val) ? 1 : 0; }