/* * 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 :-). */ #define _XOPEN_SOURCE 600 /* for inclusion of PATH_MAX */ #include "config.h" #include #include #include #include #include #ifdef __linux__ #include #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c)) #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_SYS_IOCTL_H #include #endif #include #include #include #include "ext2fs/ext2_fs.h" #include "ext2fs/ext2fsP.h" #include "uuid/uuid.h" #include "util.h" #include "support/nls-enable.h" #include "support/plausible.h" #include "support/profile.h" #include "support/prof_err.h" #include "../version.h" #include "support/quotaio.h" #include "mke2fs.h" #include "create_inode.h" #define STRIDE_LENGTH 8 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1) #ifndef __sparc__ #define ZAP_BOOTBLOCK #endif #define DISCARD_STEP_MB (2048) extern int isatty(int); extern FILE *fpopen(const char *cmd, const char *mode); const char * program_name = "mke2fs"; static const char * device_name /* = NULL */; /* Command line options */ static int cflag; int verbose; int quiet; static int super_only; static int discard = 1; /* attempt to discard device before fs creation */ static int direct_io; static int force; static int noaction; static int num_backups = 2; /* number of backup bg's for sparse_super2 */ static uid_t root_uid; static gid_t root_gid; int journal_size; int journal_flags; static int lazy_itable_init; static int packed_meta_blocks; static char *bad_blocks_filename = NULL; static __u32 fs_stride; /* Initialize usr/grp quotas by default */ static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT); static __u64 offset; static blk64_t journal_location = ~0LL; static int proceed_delay = -1; static blk64_t dev_size; static struct ext2_super_block fs_param; static __u32 zero_buf[4]; static char *fs_uuid = NULL; static char *creator_os; static char *volume_label; static char *mount_dir; char *journal_device; static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */ char **fs_types; const char *src_root_dir; /* Copy files from the specified directory */ static char *undo_file; static int android_sparse_file; /* -E android_sparse */ static char *android_sparse_params; static profile_t profile; static int sys_page_size = 4096; static int errors_behavior = 0; static void usage(void) { fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] " "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] " "[-J journal-options]\n" "\t[-G flex-group-size] [-N number-of-inodes] " "[-d root-directory]\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] [-T usage-type ] [-U UUID] [-e errors_behavior]" "[-z undo_file]\n" "\t[-jnqvDFSV] device [blocks-count]\n"), program_name); exit(1); } static int int_log2(unsigned long long arg) { int l = 0; arg >>= 1; while (arg) { l++; arg >>= 1; } return l; } int int_log10(unsigned long long arg) { int l; for (l=0; arg ; l++) arg = arg / 10; return l; } #ifdef __linux__ 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 KERNEL_VERSION(major, minor, rev); } static int is_before_linux_ver(unsigned int major, unsigned int minor, unsigned int rev) { struct utsname ut; static int linux_version_code = -1; if (uname(&ut)) { perror("uname"); exit(1); } if (linux_version_code < 0) linux_version_code = parse_version_number(ut.release); if (linux_version_code == 0) return 0; return linux_version_code < (int) KERNEL_VERSION(major, minor, rev); } #else static int is_before_linux_ver(unsigned int major, unsigned int minor, unsigned int rev) { return 0; } #endif /* * 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, "%s", _("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 %llu", fs->blocksize, quiet ? "" : "-s ", (cflag > 1) ? "-w " : "", fs->device_name, ext2fs_blocks_count(fs->super)-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, "%s", _("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_blk2(fs, group_block+j); 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, 1); } } 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, "%s", _("while marking bad blocks as used")); exit(1); } while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) ext2fs_mark_block_bitmap2(fs->block_map, EXT2FS_B2C(fs, blk)); ext2fs_badblocks_list_iterate_end(bb_iter); } static void write_reserved_inodes(ext2_filsys fs) { errcode_t retval; ext2_ino_t ino; struct ext2_inode *inode; retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode); if (retval) { com_err("inode_init", retval, _("while allocating memory")); exit(1); } for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++) ext2fs_write_inode_full(fs, ino, inode, EXT2_INODE_SIZE(fs->super)); ext2fs_free_mem(&inode); } static errcode_t packed_allocate_tables(ext2_filsys fs) { errcode_t retval; dgrp_t i; blk64_t goal = 0; for (i = 0; i < fs->group_desc_count; i++) { retval = ext2fs_new_block2(fs, goal, NULL, &goal); if (retval) return retval; ext2fs_block_alloc_stats2(fs, goal, +1); ext2fs_block_bitmap_loc_set(fs, i, goal); } for (i = 0; i < fs->group_desc_count; i++) { retval = ext2fs_new_block2(fs, goal, NULL, &goal); if (retval) return retval; ext2fs_block_alloc_stats2(fs, goal, +1); ext2fs_inode_bitmap_loc_set(fs, i, goal); } for (i = 0; i < fs->group_desc_count; i++) { blk64_t end = ext2fs_blocks_count(fs->super) - 1; retval = ext2fs_get_free_blocks2(fs, goal, end, fs->inode_blocks_per_group, fs->block_map, &goal); if (retval) return retval; ext2fs_block_alloc_stats_range(fs, goal, fs->inode_blocks_per_group, +1); ext2fs_inode_table_loc_set(fs, i, goal); ext2fs_group_desc_csum_set(fs, i); } return 0; } static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed) { errcode_t retval; blk64_t blk; dgrp_t i; int num; struct ext2fs_numeric_progress_struct progress; ext2fs_numeric_progress_init(fs, &progress, _("Writing inode tables: "), fs->group_desc_count); for (i = 0; i < fs->group_desc_count; i++) { ext2fs_numeric_progress_update(fs, &progress, i); blk = ext2fs_inode_table_loc(fs, i); num = fs->inode_blocks_per_group; if (lazy_flag) num = ext2fs_div_ceil((fs->super->s_inodes_per_group - ext2fs_bg_itable_unused(fs, i)) * EXT2_INODE_SIZE(fs->super), EXT2_BLOCK_SIZE(fs->super)); if (!lazy_flag || itable_zeroed) { /* The kernel doesn't need to zero the itable blocks */ ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED); ext2fs_group_desc_csum_set(fs, i); } if (!itable_zeroed) { retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num); if (retval) { fprintf(stderr, _("\nCould not write %d " "blocks in inode table starting at %llu: %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_numeric_progress_close(fs, &progress, _("done \n")); /* Reserved inodes must always have correct checksums */ if (ext2fs_has_feature_metadata_csum(fs->super)) write_reserved_inodes(fs); } static void create_root_dir(ext2_filsys fs) { errcode_t retval; struct ext2_inode inode; retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0); if (retval) { com_err("ext2fs_mkdir", retval, "%s", _("while creating root dir")); exit(1); } if (root_uid != 0 || root_gid != 0) { retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode); if (retval) { com_err("ext2fs_read_inode", retval, "%s", _("while reading root inode")); exit(1); } inode.i_uid = root_uid; ext2fs_set_i_uid_high(inode, root_uid >> 16); inode.i_gid = root_gid; ext2fs_set_i_gid_high(inode, root_gid >> 16); retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode); if (retval) { com_err("ext2fs_write_inode", retval, "%s", _("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, "%s", _("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, "%s", _("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, "%s", _("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_bitmap2(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, "%s", _("while setting bad block inode")); exit(1); } } static void reserve_inodes(ext2_filsys fs) { ext2_ino_t i; 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 = calloc(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_blk64(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_blk64(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 ext2fs_numeric_progress_struct progress; errcode_t retval; char *buf; blk64_t blk, err_blk; int c, count, err_count; retval = ext2fs_create_journal_superblock(fs, ext2fs_blocks_count(fs->super), 0, &buf); if (retval) { com_err("create_journal_dev", retval, "%s", _("while initializing journal superblock")); exit(1); } if (journal_flags & EXT2_MKJOURNAL_LAZYINIT) goto write_superblock; ext2fs_numeric_progress_init(fs, &progress, _("Zeroing journal device: "), ext2fs_blocks_count(fs->super)); blk = 0; count = ext2fs_blocks_count(fs->super); while (count > 0) { if (count > 1024) c = 1024; else c = count; retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count); if (retval) { com_err("create_journal_dev", retval, _("while zeroing journal device " "(block %llu, count %d)"), err_blk, err_count); exit(1); } blk += c; count -= c; ext2fs_numeric_progress_update(fs, &progress, blk); } ext2fs_numeric_progress_close(fs, &progress, NULL); write_superblock: retval = io_channel_write_blk64(fs->io, fs->super->s_first_data_block+1, 1, buf); if (retval) { com_err("create_journal_dev", retval, "%s", _("while writing journal superblock")); exit(1); } } static void show_stats(ext2_filsys fs) { struct ext2_super_block *s = fs->super; char buf[80]; char *os; blk64_t group_block; dgrp_t i; int need, col_left; if (!verbose) { printf(_("Creating filesystem with %llu %dk blocks and " "%u inodes\n"), ext2fs_blocks_count(s), fs->blocksize >> 10, s->s_inodes_count); goto skip_details; } if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s)) fprintf(stderr, _("warning: %llu blocks unused.\n\n"), ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s)); memset(buf, 0, sizeof(buf)); strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name)); printf(_("Filesystem label=%s\n"), buf); os = e2p_os2string(fs->super->s_creator_os); if (os) printf(_("OS type: %s\n"), os); free(os); printf(_("Block size=%u (log=%u)\n"), fs->blocksize, s->s_log_block_size); if (ext2fs_has_feature_bigalloc(fs->super)) printf(_("Cluster size=%u (log=%u)\n"), fs->blocksize << fs->cluster_ratio_bits, s->s_log_cluster_size); else printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s), s->s_log_cluster_size); printf(_("Stride=%u blocks, Stripe width=%u blocks\n"), s->s_raid_stride, s->s_raid_stripe_width); printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count, ext2fs_blocks_count(s)); printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"), ext2fs_r_blocks_count(s), 100.0 * ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s)); printf(_("First data block=%u\n"), s->s_first_data_block); if (root_uid != 0 || root_gid != 0) printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid); 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); if (ext2fs_has_feature_bigalloc(fs->super)) printf(_("%u blocks per group, %u clusters per group\n"), s->s_blocks_per_group, s->s_clusters_per_group); else printf(_("%u blocks per group, %u fragments per group\n"), s->s_blocks_per_group, s->s_clusters_per_group); printf(_("%u inodes per group\n"), s->s_inodes_per_group); skip_details: if (fs->group_desc_count == 1) { printf("\n"); return; } if (!e2p_is_null_uuid(s->s_uuid)) printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid)); printf("%s", _("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("%llu", group_block); } printf("\n\n"); } /* * Returns true if making a file system for the Hurd, else 0 */ static int for_hurd(const char *os) { if (!os) { #ifdef __GNU__ return 1; #else return 0; #endif } if (isdigit(*os)) return (atoi(os) == EXT2_OS_HURD); return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0); } /* * 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; int ret; len = strlen(opts); buf = malloc(len+1); if (!buf) { fprintf(stderr, "%s", _("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, "desc-size") == 0 || strcmp(token, "desc_size") == 0) { int desc_size; if (!ext2fs_has_feature_64bit(&fs_param)) { fprintf(stderr, _("%s requires '-O 64bit'\n"), token); r_usage++; continue; } if (param->s_reserved_gdt_blocks != 0) { fprintf(stderr, _("'%s' must be before 'resize=%u'\n"), token, param->s_reserved_gdt_blocks); r_usage++; continue; } if (!arg) { r_usage++; badopt = token; continue; } desc_size = strtoul(arg, &p, 0); if (*p || (desc_size & (desc_size - 1))) { fprintf(stderr, _("Invalid desc_size: '%s'\n"), arg); r_usage++; continue; } param->s_desc_size = desc_size; } else if (strcmp(token, "hash_seed") == 0) { if (!arg) { r_usage++; badopt = token; continue; } if (uuid_parse(arg, (unsigned char *)param->s_hash_seed) != 0) { fprintf(stderr, _("Invalid hash seed: %s\n"), arg); r_usage++; continue; } } else if (strcmp(token, "offset") == 0) { if (!arg) { r_usage++; badopt = token; continue; } offset = strtoull(arg, &p, 0); if (*p) { fprintf(stderr, _("Invalid offset: %s\n"), arg); r_usage++; continue; } } else if (strcmp(token, "mmp_update_interval") == 0) { if (!arg) { r_usage++; badopt = token; continue; } param->s_mmp_update_interval = strtoul(arg, &p, 0); if (*p) { fprintf(stderr, _("Invalid mmp_update_interval: %s\n"), arg); r_usage++; continue; } } else if (strcmp(token, "num_backup_sb") == 0) { if (!arg) { r_usage++; badopt = token; continue; } num_backups = strtoul(arg, &p, 0); if (*p || num_backups > 2) { fprintf(stderr, _("Invalid # of backup " "superblocks: %s\n"), arg); r_usage++; continue; } } else if (strcmp(token, "packed_meta_blocks") == 0) { if (arg) packed_meta_blocks = strtoul(arg, &p, 0); else packed_meta_blocks = 1; if (packed_meta_blocks) journal_location = 0; } else if (strcmp(token, "stride") == 0) { if (!arg) { r_usage++; badopt = token; continue; } param->s_raid_stride = strtoul(arg, &p, 0); if (*p) { 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) { fprintf(stderr, _("Invalid stripe-width parameter: %s\n"), arg); r_usage++; continue; } } else if (!strcmp(token, "resize")) { blk64_t resize; unsigned long 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_blocks2(arg, param->s_log_block_size); if (resize == 0) { fprintf(stderr, _("Invalid resize parameter: %s\n"), arg); r_usage++; continue; } if (resize <= ext2fs_blocks_count(param)) { fprintf(stderr, "%s", _("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 = (__u32) ext2fs_div64_ceil( ext2fs_blocks_count(param), bpg); desc_blocks = (group_desc_count + gdpb - 1) / gdpb; rsv_groups = ext2fs_div64_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, "%s", _("On-line resizing not supported with revision 0 filesystems\n")); free(buf); exit(1); } ext2fs_set_feature_resize_inode(param); 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 if (!strcmp(token, "lazy_journal_init")) { if (arg) journal_flags |= strtoul(arg, &p, 0) ? EXT2_MKJOURNAL_LAZYINIT : 0; else journal_flags |= EXT2_MKJOURNAL_LAZYINIT; } else if (!strcmp(token, "root_owner")) { if (arg) { root_uid = strtoul(arg, &p, 0); if (*p != ':') { fprintf(stderr, _("Invalid root_owner: '%s'\n"), arg); r_usage++; continue; } p++; root_gid = strtoul(p, &p, 0); if (*p) { fprintf(stderr, _("Invalid root_owner: '%s'\n"), arg); r_usage++; continue; } } else { root_uid = getuid(); root_gid = getgid(); } } else if (!strcmp(token, "discard")) { discard = 1; } else if (!strcmp(token, "nodiscard")) { discard = 0; } else if (!strcmp(token, "quotatype")) { char *errtok = NULL; if (!arg) { r_usage++; badopt = token; continue; } quotatype_bits = 0; ret = parse_quota_types(arg, "atype_bits, &errtok); if (ret) { if (errtok) { fprintf(stderr, "Failed to parse quota type at %s", errtok); free(errtok); } else com_err(program_name, ret, "while parsing quota type"); r_usage++; badopt = token; continue; } } else if (!strcmp(token, "android_sparse")) { android_sparse_file = 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" "\tmmp_update_interval=\n" "\tnum_backup_sb=<0|1|2>\n" "\tstride=\n" "\tstripe-width=\n" "\toffset=\n" "\tresize=\n" "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n" "\tlazy_itable_init=<0 to disable, 1 to enable>\n" "\tlazy_journal_init=<0 to disable, 1 to enable>\n" "\troot_owner=:\n" "\ttest_fs\n" "\tdiscard\n" "\tnodiscard\n" "\tquotatype=\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 | EXT4_FEATURE_COMPAT_SPARSE_SUPER2, /* Incompat */ EXT2_FEATURE_INCOMPAT_FILETYPE| EXT3_FEATURE_INCOMPAT_EXTENTS| EXT3_FEATURE_INCOMPAT_JOURNAL_DEV| EXT2_FEATURE_INCOMPAT_META_BG| EXT4_FEATURE_INCOMPAT_FLEX_BG| EXT4_FEATURE_INCOMPAT_MMP | EXT4_FEATURE_INCOMPAT_64BIT| EXT4_FEATURE_INCOMPAT_INLINE_DATA| EXT4_FEATURE_INCOMPAT_ENCRYPT | 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| EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| EXT4_FEATURE_RO_COMPAT_GDT_CSUM| EXT4_FEATURE_RO_COMPAT_BIGALLOC| EXT4_FEATURE_RO_COMPAT_QUOTA| EXT4_FEATURE_RO_COMPAT_METADATA_CSUM| EXT4_FEATURE_RO_COMPAT_PROJECT }; 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); } } static void edit_mntopts(const char *str, __u32 *mntopts) { if (!str) return; if (e2p_edit_mntopts(str, mntopts, ~0)) { fprintf(stderr, _("Invalid mount 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); } /* * Return TRUE if the profile has the given subsection */ static int profile_has_subsection(profile_t prof, const char *section, const char *subsection) { void *state; const char *names[4]; char *name; int ret = 0; names[0] = section; names[1] = subsection; names[2] = 0; if (profile_iterator_create(prof, names, PROFILE_ITER_LIST_SECTION | PROFILE_ITER_RELATIONS_ONLY, &state)) return 0; if ((profile_iterator(&state, &name, 0) == 0) && name) { free(name); ret = 1; } profile_iterator_free(&state); return ret; } static char **parse_fs_type(const char *fs_type, const char *usage_types, struct ext2_super_block *sb, blk64_t fs_blocks_count, 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; unsigned long long meg; int is_hurd = for_hurd(creator_os); if (init_list(&list)) return 0; if (fs_type) ext_type = fs_type; else if (is_hurd) ext_type = "ext2"; else if (!strcmp(program_name, "mke3fs")) ext_type = "ext3"; else if (!strcmp(program_name, "mke4fs")) ext_type = "ext4"; 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"; } if (!profile_has_subsection(profile, "fs_types", ext_type) && strcmp(ext_type, "ext2")) { printf(_("\nYour mke2fs.conf file does not define the " "%s filesystem type.\n"), ext_type); if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") || !strcmp(ext_type, "ext4dev")) { printf("%s", _("You probably need to install an " "updated mke2fs.conf file.\n\n")); } if (!force) { printf("%s", _("Aborting...\n")); exit(1); } } meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb); if (fs_blocks_count < 3 * meg) size_type = "floppy"; else if (fs_blocks_count < 512 * meg) size_type = "small"; else if (fs_blocks_count < 4 * 1024 * 1024 * meg) size_type = "default"; else if (fs_blocks_count < 16 * 1024 * 1024 * meg) size_type = "big"; else size_type = "huge"; if (!usage_types) usage_types = size_type; parse_str = malloc(strlen(usage_types)+1); if (!parse_str) { free(profile_type); free(list.list); return 0; } strcpy(parse_str, usage_types); if (ext_type) push_string(&list, ext_type); cp = parse_str; while (1) { t = strchr(cp, ','); if (t) *t = '\0'; if (*cp) { if (profile_has_subsection(profile, "fs_types", cp)) push_string(&list, cp); else if (strcmp(cp, "default") != 0) fprintf(stderr, _("\nWarning: the fs_type %s is not " "defined in mke2fs.conf\n\n"), cp); } if (t) cp = t+1; else break; } free(parse_str); free(profile_type); if (is_hurd) push_string(&list, "hurd"); return (list.list); } char *get_string_from_profile(char **types, const char *opt, const char *def_val) { char *ret = 0; int i; for (i=0; types[i]; i++); for (i-=1; i >=0 ; i--) { profile_get_string(profile, "fs_types", types[i], opt, 0, &ret); if (ret) return ret; } profile_get_string(profile, "defaults", opt, 0, def_val, &ret); return (ret); } int get_int_from_profile(char **types, const char *opt, int def_val) { int ret; char **cpp; profile_get_integer(profile, "defaults", opt, 0, def_val, &ret); for (cpp = types; *cpp; cpp++) profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret); return ret; } static unsigned int get_uint_from_profile(char **types, const char *opt, unsigned int def_val) { unsigned int ret; char **cpp; profile_get_uint(profile, "defaults", opt, 0, def_val, &ret); for (cpp = types; *cpp; cpp++) profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret); return ret; } static double get_double_from_profile(char **types, const char *opt, double def_val) { double ret; char **cpp; profile_get_double(profile, "defaults", opt, 0, def_val, &ret); for (cpp = types; *cpp; cpp++) profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret); return ret; } int get_bool_from_profile(char **types, const char *opt, int def_val) { int ret; char **cpp; profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret); for (cpp = 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 }; #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY /* * Sets the geometry of a device (stripe/stride), and returns the * device's alignment offset, if any, or a negative error. */ static int get_device_geometry(const char *file, struct ext2_super_block *param, unsigned int psector_size) { int rc = -1; unsigned int blocksize; blkid_probe pr; blkid_topology tp; unsigned long min_io; unsigned long opt_io; struct stat statbuf; /* Nothing to do for a regular file */ if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode)) return 0; pr = blkid_new_probe_from_filename(file); if (!pr) goto out; tp = blkid_probe_get_topology(pr); if (!tp) goto out; min_io = blkid_topology_get_minimum_io_size(tp); opt_io = blkid_topology_get_optimal_io_size(tp); blocksize = EXT2_BLOCK_SIZE(param); if ((min_io == 0) && (psector_size > blocksize)) min_io = psector_size; if ((opt_io == 0) && min_io) opt_io = min_io; if ((opt_io == 0) && (psector_size > blocksize)) opt_io = psector_size; /* setting stripe/stride to blocksize is pointless */ if (min_io > blocksize) param->s_raid_stride = min_io / blocksize; if (opt_io > blocksize) param->s_raid_stripe_width = opt_io / blocksize; rc = blkid_topology_get_alignment_offset(tp); out: blkid_free_probe(pr); return rc; } #endif static void PRS(int argc, char *argv[]) { int b, c, flags; int cluster_size = 0; char *tmp, **cpp; int explicit_fssize = 0; int blocksize = 0; int inode_ratio = 0; int inode_size = 0; unsigned long flex_bg_size = 0; double reserved_ratio = -1.0; int lsector_size = 0, psector_size = 0; int show_version_only = 0, is_device = 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; char * fs_type = 0; char * usage_types = 0; /* * NOTE: A few words about fs_blocks_count and blocksize: * * Initially, blocksize is set to zero, which implies 1024. * If -b is specified, blocksize is updated to the user's value. * * Next, the device size or the user's "blocks" command line argument * is used to set fs_blocks_count; the units are blocksize. * * Later, if blocksize hasn't been set and the profile specifies a * blocksize, then blocksize is updated and fs_blocks_count is scaled * appropriately. Note the change in units! * * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs. */ blk64_t fs_blocks_count = 0; long sysval; int s_opt = -1, r_opt = -1; char *fs_features = 0; int fs_features_size = 0; int use_bsize; char *newpath; int pathlen = sizeof(PATH_SET) + 1; if (oldpath) pathlen += strlen(oldpath); newpath = malloc(pathlen); if (!newpath) { fprintf(stderr, "%s", _("Couldn't allocate memory for new PATH.\n")); exit(1); } 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) { retval = profile_init(default_files, &profile); if (retval) goto profile_error; retval = profile_set_default(profile, mke2fs_default_profile); if (retval) goto profile_error; } else if (retval) { profile_error: fprintf(stderr, _("Couldn't init profile successfully" " (error: %ld).\n"), retval); exit(1); } 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 */ if (is_before_linux_ver(2, 2, 0)) fs_param.s_rev_level = 0; if (argc && *argv) { program_name = get_progname(*argv); /* If called as mkfs.ext3, create a journal inode */ if (!strcmp(program_name, "mkfs.ext3") || !strcmp(program_name, "mke3fs")) journal_size = -1; } while ((c = getopt (argc, argv, "b:cd:e:g:i:jl:m:no:qr:s:t:vC:DE:FG:I:J:KL:M:N:O:R:ST:U:Vz:")) != EOF) { switch (c) { case 'b': blocksize = parse_num_blocks2(optarg, -1); b = (blocksize > 0) ? blocksize : -blocksize; if (b < EXT2_MIN_BLOCK_SIZE || b > EXT2_MAX_BLOCK_SIZE) { 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 'C': cluster_size = parse_num_blocks2(optarg, -1); if (cluster_size <= EXT2_MIN_CLUSTER_SIZE || cluster_size > EXT2_MAX_CLUSTER_SIZE) { com_err(program_name, 0, _("invalid cluster size - %s"), optarg); exit(1); } break; case 'd': src_root_dir = optarg; break; case 'D': direct_io = 1; break; case 'R': com_err(program_name, 0, "%s", _("'-R' is deprecated, use '-E' instead")); /* fallthrough */ case 'E': extended_opts = optarg; break; case 'e': if (strcmp(optarg, "continue") == 0) errors_behavior = EXT2_ERRORS_CONTINUE; else if (strcmp(optarg, "remount-ro") == 0) errors_behavior = EXT2_ERRORS_RO; else if (strcmp(optarg, "panic") == 0) errors_behavior = EXT2_ERRORS_PANIC; else { com_err(program_name, 0, _("bad error behavior - %s"), optarg); usage(); } break; case 'F': force++; break; case 'g': fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0); if (*tmp) { com_err(program_name, 0, "%s", _("Illegal number for blocks per group")); exit(1); } if ((fs_param.s_blocks_per_group % 8) != 0) { com_err(program_name, 0, "%s", _("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, "%s", _("Illegal number for flex_bg size")); exit(1); } if (flex_bg_size < 1 || (flex_bg_size & (flex_bg_size-1)) != 0) { com_err(program_name, 0, "%s", _("flex_bg size must be a power of 2")); exit(1); } if (flex_bg_size > MAX_32_NUM) { com_err(program_name, 0, _("flex_bg size (%lu) must be less than" " or equal to 2^31"), flex_bg_size); exit(1); } break; case 'i': inode_ratio = parse_num_blocks(optarg, -1); if (inode_ratio < EXT2_MIN_BLOCK_SIZE || inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) { com_err(program_name, 0, _("invalid inode ratio %s (min %d/max %d)"), optarg, EXT2_MIN_BLOCK_SIZE, EXT2_MAX_BLOCK_SIZE * 1024); exit(1); } 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 'j': if (!journal_size) journal_size = -1; break; case 'J': parse_journal_opts(optarg); break; case 'K': fprintf(stderr, "%s", _("Warning: -K option is deprecated and " "should not be used anymore. Use " "\'-E nodiscard\' extended option " "instead!\n")); discard = 0; break; case 'l': bad_blocks_filename = realloc(bad_blocks_filename, strlen(optarg) + 1); if (!bad_blocks_filename) { com_err(program_name, ENOMEM, "%s", _("in malloc for bad_blocks_filename")); exit(1); } strcpy(bad_blocks_filename, optarg); break; case 'L': volume_label = optarg; if (strlen(volume_label) > EXT2_LABEL_LEN) { volume_label[EXT2_LABEL_LEN] = '\0'; fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"), volume_label); } break; case 'm': reserved_ratio = strtod(optarg, &tmp); if ( *tmp || reserved_ratio > 50 || reserved_ratio < 0) { com_err(program_name, 0, _("invalid reserved blocks percent - %s"), optarg); exit(1); } break; case 'M': mount_dir = optarg; break; case 'n': noaction++; 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': creator_os = optarg; break; case 'O': retval = ext2fs_resize_mem(fs_features_size, fs_features_size + 1 + strlen(optarg), &fs_features); if (retval) { com_err(program_name, retval, _("while allocating fs_feature string")); exit(1); } if (fs_features_size) strcat(fs_features, ","); else fs_features[0] = 0; strcat(fs_features, optarg); fs_features_size += 1 + strlen(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); } if (r_opt > EXT2_MAX_SUPP_REV) { com_err(program_name, EXT2_ET_REV_TOO_HIGH, _("while trying to create revision %d"), r_opt); exit(1); } fs_param.s_rev_level = r_opt; break; case 's': /* deprecated */ s_opt = atoi(optarg); break; case 'S': super_only = 1; break; case 't': if (fs_type) { com_err(program_name, 0, "%s", _("The -t option may only be used once")); exit(1); } fs_type = strdup(optarg); break; case 'T': if (usage_types) { com_err(program_name, 0, "%s", _("The -T option may only be used once")); exit(1); } usage_types = strdup(optarg); break; case 'U': fs_uuid = optarg; break; case 'v': verbose = 1; break; case 'V': /* Print version number and exit */ show_version_only++; break; case 'z': undo_file = optarg; 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 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_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; printf(_("Using journal device's blocksize: %d\n"), blocksize); fs_param.s_log_block_size = int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); ext2fs_close_free(&jfs); } if (optind < argc) { fs_blocks_count = parse_num_blocks2(argv[optind++], fs_param.s_log_block_size); if (!fs_blocks_count) { com_err(program_name, 0, _("invalid blocks '%s' on device '%s'"), argv[optind - 1], device_name); exit(1); } } if (optind < argc) usage(); profile_get_integer(profile, "options", "proceed_delay", 0, 0, &proceed_delay); /* The isatty() test is so we don't break existing scripts */ flags = CREATE_FILE; if (isatty(0) && isatty(1) && !offset) flags |= CHECK_FS_EXIST; if (!quiet) flags |= VERBOSE_CREATE; if (fs_blocks_count == 0) flags |= NO_SIZE; else explicit_fssize = 1; if (!check_plausibility(device_name, flags, &is_device) && !force) proceed_question(proceed_delay); check_mount(device_name, force, _("filesystem")); /* Determine the size of the device (if possible) */ if (noaction && fs_blocks_count) { dev_size = fs_blocks_count; retval = 0; } else #ifndef _WIN32 retval = ext2fs_get_device_size2(device_name, EXT2_BLOCK_SIZE(&fs_param), &dev_size); #else retval = ext2fs_get_device_size(device_name, EXT2_BLOCK_SIZE(&fs_param), &dev_size); #endif if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) { com_err(program_name, retval, "%s", _("while trying to determine filesystem size")); exit(1); } if (!fs_blocks_count) { if (retval == EXT2_ET_UNIMPLEMENTED) { com_err(program_name, 0, "%s", _("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, "%s", _("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_blocks_count = dev_size; if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param)) fs_blocks_count &= ~((blk64_t) ((sys_page_size / EXT2_BLOCK_SIZE(&fs_param))-1)); } } else if (!force && is_device && (fs_blocks_count > dev_size)) { com_err(program_name, 0, "%s", _("Filesystem larger than apparent device size.")); proceed_question(proceed_delay); } if (!fs_type) profile_get_string(profile, "devices", device_name, "fs_type", 0, &fs_type); if (!usage_types) profile_get_string(profile, "devices", device_name, "usage_types", 0, &usage_types); /* * We have the file system (or device) size, so we can now * determine the appropriate file system types so the fs can * be appropriately configured. */ fs_types = parse_fs_type(fs_type, usage_types, &fs_param, fs_blocks_count ? fs_blocks_count : dev_size, argv[0]); if (!fs_types) { fprintf(stderr, "%s", _("Failed to parse fs types list\n")); exit(1); } /* 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,large_file,filetype,resize_inode,dir_index"); edit_feature(tmp, &fs_param.s_feature_compat); free(tmp); /* And which mount options as well */ tmp = get_string_from_profile(fs_types, "default_mntopts", "acl,user_xattr"); edit_mntopts(tmp, &fs_param.s_default_mount_opts); if (tmp) 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", ""); } /* Mask off features which aren't supported by the Hurd */ if (for_hurd(creator_os)) { ext2fs_clear_feature_filetype(&fs_param); ext2fs_clear_feature_huge_file(&fs_param); ext2fs_clear_feature_metadata_csum(&fs_param); } edit_feature(fs_features ? fs_features : tmp, &fs_param.s_feature_compat); if (tmp) free(tmp); (void) ext2fs_free_mem(&fs_features); /* * If the user specified features incompatible with the Hurd, complain */ if (for_hurd(creator_os)) { if (ext2fs_has_feature_filetype(&fs_param)) { fprintf(stderr, "%s", _("The HURD does not support the " "filetype feature.\n")); exit(1); } if (ext2fs_has_feature_huge_file(&fs_param)) { fprintf(stderr, "%s", _("The HURD does not support the " "huge_file feature.\n")); exit(1); } if (ext2fs_has_feature_metadata_csum(&fs_param)) { fprintf(stderr, "%s", _("The HURD does not support the " "metadata_csum feature.\n")); exit(1); } } /* Get the hardware sector sizes, if available */ retval = ext2fs_get_device_sectsize(device_name, &lsector_size); if (retval) { com_err(program_name, retval, "%s", _("while trying to determine hardware sector size")); exit(1); } retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size); if (retval) { com_err(program_name, retval, "%s", _("while trying to determine physical sector size")); exit(1); } tmp = getenv("MKE2FS_DEVICE_SECTSIZE"); if (tmp != NULL) lsector_size = atoi(tmp); tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE"); if (tmp != NULL) psector_size = atoi(tmp); /* Older kernels may not have physical/logical distinction */ if (!psector_size) psector_size = lsector_size; if (blocksize <= 0) { use_bsize = get_int_from_profile(fs_types, "blocksize", 4096); if (use_bsize == -1) { use_bsize = sys_page_size; if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096) use_bsize = 4096; } if (lsector_size && use_bsize < lsector_size) use_bsize = lsector_size; if ((blocksize < 0) && (use_bsize < (-blocksize))) use_bsize = -blocksize; blocksize = use_bsize; fs_blocks_count /= (blocksize / 1024); } else { if (blocksize < lsector_size) { /* Impossible */ com_err(program_name, EINVAL, "%s", _("while setting blocksize; too small " "for device\n")); exit(1); } else if ((blocksize < psector_size) && (psector_size <= sys_page_size)) { /* Suboptimal */ fprintf(stderr, _("Warning: specified blocksize %d is " "less than device physical sectorsize %d\n"), blocksize, psector_size); } } fs_param.s_log_block_size = int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); /* * We now need to do a sanity check of fs_blocks_count for * 32-bit vs 64-bit block number support. */ if ((fs_blocks_count > MAX_32_NUM) && ext2fs_has_feature_64bit(&fs_param)) ext2fs_clear_feature_resize_inode(&fs_param); if ((fs_blocks_count > MAX_32_NUM) && !ext2fs_has_feature_64bit(&fs_param) && get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) { ext2fs_set_feature_64bit(&fs_param); ext2fs_clear_feature_resize_inode(&fs_param); } if ((fs_blocks_count > MAX_32_NUM) && !ext2fs_has_feature_64bit(&fs_param)) { fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s " "too big to be expressed\n\t" "in 32 bits using a blocksize of %d.\n"), program_name, fs_blocks_count, device_name, EXT2_BLOCK_SIZE(&fs_param)); exit(1); } ext2fs_blocks_count_set(&fs_param, fs_blocks_count); if (ext2fs_has_feature_journal_dev(&fs_param)) { fs_types[0] = strdup("journal"); fs_types[1] = 0; } if (verbose) { fputs(_("fs_types for mke2fs.conf resolution: "), stdout); print_str_list(fs_types); } if (r_opt == EXT2_GOOD_OLD_REV && (fs_param.s_feature_compat || fs_param.s_feature_incompat || fs_param.s_feature_ro_compat)) { fprintf(stderr, "%s", _("Filesystem features not supported " "with revision 0 filesystems\n")); exit(1); } if (s_opt > 0) { if (r_opt == EXT2_GOOD_OLD_REV) { fprintf(stderr, "%s", _("Sparse superblocks not supported " "with revision 0 filesystems\n")); exit(1); } ext2fs_set_feature_sparse_super(&fs_param); } else if (s_opt == 0) ext2fs_clear_feature_sparse_super(&fs_param); if (journal_size != 0) { if (r_opt == EXT2_GOOD_OLD_REV) { fprintf(stderr, "%s", _("Journals not supported with " "revision 0 filesystems\n")); exit(1); } ext2fs_set_feature_journal(&fs_param); } /* Get reserved_ratio from profile if not specified on cmd line. */ if (reserved_ratio < 0.0) { reserved_ratio = get_double_from_profile( fs_types, "reserved_ratio", 5.0); if (reserved_ratio > 50 || reserved_ratio < 0) { com_err(program_name, 0, _("invalid reserved blocks percent - %lf"), reserved_ratio); exit(1); } } if (ext2fs_has_feature_journal_dev(&fs_param)) { 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 &= EXT4_FEATURE_RO_COMPAT_METADATA_CSUM; } /* Check the user's mkfs options for 64bit */ if (ext2fs_has_feature_64bit(&fs_param) && !ext2fs_has_feature_extents(&fs_param)) { printf("%s", _("Extents MUST be enabled for a 64-bit " "filesystem. Pass -O extents to rectify.\n")); exit(1); } /* Set first meta blockgroup via an environment variable */ /* (this is mostly for debugging purposes) */ if (ext2fs_has_feature_meta_bg(&fs_param) && (tmp = getenv("MKE2FS_FIRST_META_BG"))) fs_param.s_first_meta_bg = atoi(tmp); if (ext2fs_has_feature_bigalloc(&fs_param)) { if (!cluster_size) cluster_size = get_int_from_profile(fs_types, "cluster_size", blocksize*16); fs_param.s_log_cluster_size = int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE); if (fs_param.s_log_cluster_size && fs_param.s_log_cluster_size < fs_param.s_log_block_size) { com_err(program_name, 0, "%s", _("The cluster size may not be " "smaller than the block size.\n")); exit(1); } } else if (cluster_size) { com_err(program_name, 0, "%s", _("specifying a cluster size requires the " "bigalloc feature")); exit(1); } else fs_param.s_log_cluster_size = fs_param.s_log_block_size; if (inode_ratio == 0) { inode_ratio = get_int_from_profile(fs_types, "inode_ratio", 8192); if (inode_ratio < blocksize) inode_ratio = blocksize; if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param)) inode_ratio = EXT2_CLUSTER_SIZE(&fs_param); } #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY retval = get_device_geometry(device_name, &fs_param, (unsigned int) psector_size); if (retval < 0) { fprintf(stderr, _("warning: Unable to get device geometry for %s\n"), device_name); } else if (retval) { printf(_("%s alignment is offset by %lu bytes.\n"), device_name, retval); printf(_("This may result in very poor performance, " "(re)-partitioning suggested.\n")); } #endif num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2); blocksize = EXT2_BLOCK_SIZE(&fs_param); /* * Initialize s_desc_size so that the parse_extended_opts() * can correctly handle "-E resize=NNN" if the 64-bit option * is set. */ if (ext2fs_has_feature_64bit(&fs_param)) fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT; /* This check should happen beyond the last assignment to blocksize */ 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(proceed_delay); } fprintf(stderr, _("Warning: %d-byte blocks too big for system " "(max %d), forced to continue\n"), blocksize, sys_page_size); } /* Metadata checksumming wasn't totally stable before 3.18. */ if (is_before_linux_ver(3, 18, 0) && ext2fs_has_feature_metadata_csum(&fs_param)) fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for " "improved stability of the metadata and journal " "checksum features.\n")); /* * On newer kernels we do have lazy_itable_init support. So pick the * right default in case ext4 module is not loaded. */ if (is_before_linux_ver(2, 6, 37)) lazy_itable_init = 0; else lazy_itable_init = 1; if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0) lazy_itable_init = 1; lazy_itable_init = get_bool_from_profile(fs_types, "lazy_itable_init", lazy_itable_init); discard = get_bool_from_profile(fs_types, "discard" , discard); journal_flags |= get_bool_from_profile(fs_types, "lazy_journal_init", 0) ? EXT2_MKJOURNAL_LAZYINIT : 0; journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK; if (!journal_location_string) journal_location_string = get_string_from_profile(fs_types, "journal_location", ""); if ((journal_location == ~0ULL) && journal_location_string && *journal_location_string) journal_location = parse_num_blocks2(journal_location_string, fs_param.s_log_block_size); free(journal_location_string); packed_meta_blocks = get_bool_from_profile(fs_types, "packed_meta_blocks", 0); if (packed_meta_blocks) journal_location = 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); free(tmp); } if (extended_opts) parse_extended_opts(&fs_param, extended_opts); if (explicit_fssize == 0 && offset > 0) { fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param); ext2fs_blocks_count_set(&fs_param, fs_blocks_count); fprintf(stderr, _("\nWarning: offset specified without an " "explicit file system size.\n" "Creating a file system with %llu blocks " "but this might\n" "not be what you want.\n\n"), (unsigned long long) fs_blocks_count); } /* Don't allow user to set both metadata_csum and uninit_bg bits. */ if (ext2fs_has_feature_metadata_csum(&fs_param) && ext2fs_has_feature_gdt_csum(&fs_param)) ext2fs_clear_feature_gdt_csum(&fs_param); /* Can't support bigalloc feature without extents feature */ if (ext2fs_has_feature_bigalloc(&fs_param) && !ext2fs_has_feature_extents(&fs_param)) { com_err(program_name, 0, "%s", _("Can't support bigalloc feature without " "extents feature")); exit(1); } if (ext2fs_has_feature_meta_bg(&fs_param) && ext2fs_has_feature_resize_inode(&fs_param)) { fprintf(stderr, "%s", _("The resize_inode and meta_bg " "features are not compatible.\n" "They can not be both enabled " "simultaneously.\n")); exit(1); } if (!quiet && ext2fs_has_feature_bigalloc(&fs_param)) fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is " "still under development\n" "See https://ext4.wiki.kernel.org/" "index.php/Bigalloc for more information\n\n")); /* * Since sparse_super is the default, we would only have a problem * here if it was explicitly disabled. */ if (ext2fs_has_feature_resize_inode(&fs_param) && !ext2fs_has_feature_sparse_super(&fs_param)) { com_err(program_name, 0, "%s", _("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, "%s", _("blocks per group count out of range")); exit(1); } } /* * If the bigalloc feature is enabled, then the -g option will * specify the number of clusters per group. */ if (ext2fs_has_feature_bigalloc(&fs_param)) { fs_param.s_clusters_per_group = fs_param.s_blocks_per_group; fs_param.s_blocks_per_group = 0; } if (inode_size == 0) inode_size = get_int_from_profile(fs_types, "inode_size", 0); if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param)) flex_bg_size = get_uint_from_profile(fs_types, "flex_bg_size", 16); if (flex_bg_size) { if (!ext2fs_has_feature_flex_bg(&fs_param)) { com_err(program_name, 0, "%s", _("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; } /* * If inode size is 128 and inline data is enabled, we need * to notify users that inline data will never be useful. */ if (ext2fs_has_feature_inline_data(&fs_param) && fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) { com_err(program_name, 0, _("%d byte inodes are too small for inline data; " "specify larger size"), fs_param.s_inode_size); exit(1); } /* * If inode size is 128 and project quota is enabled, we need * to notify users that project ID will never be useful. */ if (ext2fs_has_feature_project(&fs_param) && fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) { com_err(program_name, 0, _("%d byte inodes are too small for project quota; " "specify larger size"), fs_param.s_inode_size); exit(1); } /* Make sure number of inodes specified will fit in 32 bits */ if (num_inodes == 0) { unsigned long long n; n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio; if (n > MAX_32_NUM) { if (ext2fs_has_feature_64bit(&fs_param)) num_inodes = MAX_32_NUM; else { com_err(program_name, 0, _("too many inodes (%llu), raise " "inode ratio?"), n); exit(1); } } } else if (num_inodes > MAX_32_NUM) { 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 : (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio; if ((((unsigned long long)fs_param.s_inodes_count) * (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >= ((ext2fs_blocks_count(&fs_param)) * EXT2_BLOCK_SIZE(&fs_param))) { com_err(program_name, 0, _("inode_size (%u) * inodes_count " "(%u) too big for a\n\t" "filesystem with %llu 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 long) ext2fs_blocks_count(&fs_param)); exit(1); } /* * Calculate number of blocks to reserve */ ext2fs_r_blocks_count_set(&fs_param, reserved_ratio * ext2fs_blocks_count(&fs_param) / 100.0); if (ext2fs_has_feature_sparse_super2(&fs_param)) { if (num_backups >= 1) fs_param.s_backup_bgs[0] = 1; if (num_backups >= 2) fs_param.s_backup_bgs[1] = ~0; } free(fs_type); free(usage_types); } 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 = ext2fs_has_feature_metadata_csum(&fs_param) || ext2fs_has_feature_gdt_csum(&fs_param); 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_blk64(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 = ENOMEM; char *tdb_dir = NULL, *tdb_file = NULL; char *dev_name, *tmp_name; int free_tdb_dir = 0; /* (re)open a specific undo file */ if (undo_file && undo_file[0] != 0) { retval = set_undo_io_backing_manager(*io_ptr); if (retval) goto err; *io_ptr = undo_io_manager; retval = set_undo_io_backup_file(undo_file); if (retval) goto err; printf(_("Overwriting existing filesystem; this can be undone " "using the command:\n" " e2undo %s %s\n\n"), undo_file, name); return retval; } /* * 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); free_tdb_dir = 1; } if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || access(tdb_dir, W_OK)) { if (free_tdb_dir) free(tdb_dir); return 0; } tmp_name = strdup(name); if (!tmp_name) goto errout; dev_name = basename(tmp_name); tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1); if (!tdb_file) { free(tmp_name); goto errout; } sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name); free(tmp_name); if ((unlink(tdb_file) < 0) && (errno != ENOENT)) { retval = errno; com_err(program_name, retval, _("while trying to delete %s"), tdb_file); goto errout; } retval = set_undo_io_backing_manager(*io_ptr); if (retval) goto errout; *io_ptr = undo_io_manager; retval = set_undo_io_backup_file(tdb_file); if (retval) goto errout; printf(_("Overwriting existing filesystem; this can be undone " "using the command:\n" " e2undo %s %s\n\n"), tdb_file, name); if (free_tdb_dir) free(tdb_dir); free(tdb_file); return 0; errout: if (free_tdb_dir) free(tdb_dir); free(tdb_file); err: com_err(program_name, retval, "%s", _("while trying to setup undo file\n")); return retval; } static int mke2fs_discard_device(ext2_filsys fs) { struct ext2fs_numeric_progress_struct progress; blk64_t blocks = ext2fs_blocks_count(fs->super); blk64_t count = DISCARD_STEP_MB; blk64_t cur; int retval = 0; /* * Let's try if discard really works on the device, so * we do not print numeric progress resulting in failure * afterwards. */ retval = io_channel_discard(fs->io, 0, fs->blocksize); if (retval) return retval; cur = fs->blocksize; count *= (1024 * 1024); count /= fs->blocksize; ext2fs_numeric_progress_init(fs, &progress, _("Discarding device blocks: "), blocks); while (cur < blocks) { ext2fs_numeric_progress_update(fs, &progress, cur); if (cur + count > blocks) count = blocks - cur; retval = io_channel_discard(fs->io, cur, count); if (retval) break; cur += count; } if (retval) { ext2fs_numeric_progress_close(fs, &progress, _("failed - ")); if (!quiet) printf("%s\n",error_message(retval)); } else ext2fs_numeric_progress_close(fs, &progress, _("done \n")); return retval; } static void fix_cluster_bg_counts(ext2_filsys fs) { blk64_t block, num_blocks, last_block, next; blk64_t tot_free = 0; errcode_t retval; dgrp_t group = 0; int grp_free = 0; num_blocks = ext2fs_blocks_count(fs->super); last_block = ext2fs_group_last_block2(fs, group); block = fs->super->s_first_data_block; while (block < num_blocks) { retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map, block, last_block, &next); if (retval == 0) block = next; else { block = last_block + 1; goto next_bg; } retval = ext2fs_find_first_set_block_bitmap2(fs->block_map, block, last_block, &next); if (retval) next = last_block + 1; grp_free += EXT2FS_NUM_B2C(fs, next - block); tot_free += next - block; block = next; if (block > last_block) { next_bg: ext2fs_bg_free_blocks_count_set(fs, group, grp_free); ext2fs_group_desc_csum_set(fs, group); grp_free = 0; group++; last_block = ext2fs_group_last_block2(fs, group); } } ext2fs_free_blocks_count_set(fs->super, tot_free); } static int create_quota_inodes(ext2_filsys fs) { quota_ctx_t qctx; errcode_t retval; retval = quota_init_context(&qctx, fs, QUOTA_ALL_BIT); if (retval) { com_err(program_name, retval, _("while initializing quota context")); exit(1); } quota_compute_usage(qctx); retval = quota_write_inode(qctx, quotatype_bits); if (retval) { com_err(program_name, retval, _("while writing quota inodes")); exit(1); } quota_release_context(&qctx); return 0; } static errcode_t set_error_behavior(ext2_filsys fs) { char *arg = NULL; short errors = fs->super->s_errors; arg = get_string_from_profile(fs_types, "errors", NULL); if (arg == NULL) goto try_user; if (strcmp(arg, "continue") == 0) errors = EXT2_ERRORS_CONTINUE; else if (strcmp(arg, "remount-ro") == 0) errors = EXT2_ERRORS_RO; else if (strcmp(arg, "panic") == 0) errors = EXT2_ERRORS_PANIC; else { com_err(program_name, 0, _("bad error behavior in profile - %s"), arg); free(arg); return EXT2_ET_INVALID_ARGUMENT; } free(arg); try_user: if (errors_behavior) errors = errors_behavior; fs->super->s_errors = errors; return 0; } int main (int argc, char *argv[]) { errcode_t retval = 0; ext2_filsys fs; badblocks_list bb_list = 0; unsigned int journal_blocks = 0; unsigned int i, checkinterval; int max_mnt_count; int val, hash_alg; int flags; int old_bitmaps; io_manager io_ptr; char opt_string[40]; char *hash_alg_str; int itable_zeroed = 0; #ifdef ENABLE_NLS setlocale(LC_MESSAGES, ""); setlocale(LC_CTYPE, ""); bindtextdomain(NLS_CAT_NAME, LOCALEDIR); textdomain(NLS_CAT_NAME); set_com_err_gettext(gettext); #endif PRS(argc, argv); #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; if (undo_file != NULL || should_do_undo(device_name)) { retval = mke2fs_setup_tdb(device_name, &io_ptr); if (retval) exit(1); } /* * Initialize the superblock.... */ flags = EXT2_FLAG_EXCLUSIVE; if (direct_io) flags |= EXT2_FLAG_DIRECT_IO; profile_get_boolean(profile, "options", "old_bitmaps", 0, 0, &old_bitmaps); if (!old_bitmaps) flags |= EXT2_FLAG_64BITS; /* * By default, we print how many inode tables or block groups * or whatever we've written so far. The quiet flag disables * this, along with a lot of other output. */ if (!quiet) flags |= EXT2_FLAG_PRINT_PROGRESS; if (android_sparse_file) { android_sparse_params = malloc(PATH_MAX + 32); if (!android_sparse_params) { com_err(program_name, ENOMEM, "%s", _("in malloc for android_sparse_params")); exit(1); } snprintf(android_sparse_params, PATH_MAX + 32, "(%s):%u:%u", device_name, fs_param.s_blocks_count, 1024 << fs_param.s_log_block_size); retval = ext2fs_initialize(android_sparse_params, flags, &fs_param, sparse_io_manager, &fs); } else retval = ext2fs_initialize(device_name, flags, &fs_param, io_ptr, &fs); if (retval) { com_err(device_name, retval, "%s", _("while setting up superblock")); exit(1); } fs->progress_ops = &ext2fs_numeric_progress_ops; /* Set the error behavior */ retval = set_error_behavior(fs); if (retval) usage(); /* Check the user's mkfs options for metadata checksumming */ if (!quiet && !ext2fs_has_feature_journal_dev(fs->super) && ext2fs_has_feature_metadata_csum(fs->super)) { 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. " "Pass -O extents 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. " "Pass -O 64bit to rectify.\n")); } if (ext2fs_has_feature_csum_seed(fs->super) && !ext2fs_has_feature_metadata_csum(fs->super)) { printf("%s", _("The metadata_csum_seed feature " "requres the metadata_csum feature.\n")); exit(1); } /* Calculate journal blocks */ if (!journal_device && ((journal_size) || ext2fs_has_feature_journal(&fs_param))) journal_blocks = figure_journal_size(journal_size, fs); sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ? 32768 : fs->blocksize * 8); io_channel_set_options(fs->io, opt_string); if (offset) { sprintf(opt_string, "offset=%llu", offset); io_channel_set_options(fs->io, opt_string); } /* Can't undo discard ... */ if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) { retval = mke2fs_discard_device(fs); if (!retval && io_channel_discard_zeroes_data(fs->io)) { if (verbose) printf("%s", _("Discard succeeded and will return " "0s - skipping inode table wipe\n")); lazy_itable_init = 1; itable_zeroed = 1; zero_hugefile = 0; } } if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS) fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS; if (ext2fs_has_feature_flex_bg(&fs_param) || ext2fs_has_feature_huge_file(&fs_param) || ext2fs_has_feature_gdt_csum(&fs_param) || ext2fs_has_feature_dir_nlink(&fs_param) || ext2fs_has_feature_metadata_csum(&fs_param) || ext2fs_has_feature_extra_isize(&fs_param)) fs->super->s_kbytes_written = 1; /* * Wipe out the old on-disk superblock */ if (!noaction) zap_sector(fs, 2, 6); /* * Parse or generate a UUID for the filesystem */ if (fs_uuid) { if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) { com_err(device_name, 0, "could not parse UUID: %s\n", fs_uuid); exit(1); } } else uuid_generate(fs->super->s_uuid); if (ext2fs_has_feature_csum_seed(fs->super)) fs->super->s_checksum_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid, sizeof(fs->super->s_uuid)); ext2fs_init_csum_seed(fs); /* * Initialize the directory index variables */ hash_alg_str = get_string_from_profile(fs_types, "hash_alg", "half_md4"); hash_alg = e2p_string2hash(hash_alg_str); free(hash_alg_str); fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg : EXT2_HASH_HALF_MD4; if (memcmp(fs_param.s_hash_seed, zero_buf, sizeof(fs_param.s_hash_seed)) != 0) { memcpy(fs->super->s_hash_seed, fs_param.s_hash_seed, sizeof(fs->super->s_hash_seed)); } else uuid_generate((unsigned char *) fs->super->s_hash_seed); /* * Periodic checks can be enabled/disabled via config file. * Note we override the kernel include file's idea of what the default * check interval (never) should be. It's a good idea to check at * least *occasionally*, specially since servers will never rarely get * to reboot, since Linux is so robust these days. :-) * * 180 days (six months) seems like a good value. */ #ifdef EXT2_DFL_CHECKINTERVAL #undef EXT2_DFL_CHECKINTERVAL #endif #define EXT2_DFL_CHECKINTERVAL (86400L * 180L) if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) { fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL; fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT; /* * 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; } else fs->super->s_max_mnt_count = -1; /* * 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) ext2fs_clear_feature_filetype(fs->super); /* * 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)); } /* Set current default encryption algorithms for data and * filename encryption */ if (ext2fs_has_feature_encrypt(fs->super)) { 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 (ext2fs_has_feature_metadata_csum(fs->super)) fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM; if (!quiet || noaction) show_stats(fs); if (noaction) exit(0); if (ext2fs_has_feature_journal_dev(fs->super)) { create_journal_dev(fs); printf("\n"); exit(ext2fs_close_free(&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; if (!quiet) printf("%s", _("Allocating group tables: ")); if (ext2fs_has_feature_flex_bg(fs->super) && packed_meta_blocks) retval = packed_allocate_tables(fs); else retval = ext2fs_allocate_tables(fs); if (retval) { com_err(program_name, retval, "%s", _("while trying to allocate filesystem tables")); exit(1); } if (!quiet) printf("%s", _("done \n")); retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map); if (retval) { com_err(program_name, retval, "%s", _("\n\twhile converting subcluster bitmap")); exit(1); } if (super_only) { check_plausibility(device_name, CHECK_FS_EXIST, NULL); printf(_("%s may be further corrupted by superblock rewrite\n"), device_name); if (!force) proceed_question(proceed_delay); fs->super->s_state |= EXT2_ERROR_FS; fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY); /* * The command "mke2fs -S" is used to recover * corrupted file systems, so do not mark any of the * inodes as unused; we want e2fsck to consider all * inodes as potentially containing recoverable data. */ if (ext2fs_has_group_desc_csum(fs)) { for (i = 0; i < fs->group_desc_count; i++) ext2fs_bg_itable_unused_set(fs, i, 0); } } else { /* rsv must be a power of two (64kB is MD RAID sb alignment) */ blk64_t rsv = 65536 / fs->blocksize; blk64_t blocks = ext2fs_blocks_count(fs->super); blk64_t start; blk64_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_blocks2(fs, start, blocks - start, &ret_blk, NULL); if (retval) { com_err(program_name, retval, _("while zeroing block %llu at end of filesystem"), ret_blk); } write_inode_tables(fs, lazy_itable_init, itable_zeroed); create_root_dir(fs); create_lost_and_found(fs); reserve_inodes(fs); create_bad_block_inode(fs, bb_list); if (ext2fs_has_feature_resize_inode(fs->super)) { retval = ext2fs_create_resize_inode(fs); if (retval) { com_err("ext2fs_create_resize_inode", retval, "%s", _("while reserving blocks for online resize")); exit(1); } } } if (journal_device) { ext2_filsys jfs; if (!check_plausibility(journal_device, CHECK_BLOCK_DEV, NULL) && !force) proceed_question(proceed_delay); 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("%s", _("done\n")); ext2fs_close_free(&jfs); free(journal_device); } else if ((journal_size) || ext2fs_has_feature_journal(&fs_param)) { if (super_only) { printf("%s", _("Skipping journal creation in super-only mode\n")); fs->super->s_journal_inum = EXT2_JOURNAL_INO; goto no_journal; } if (!journal_blocks) { ext2fs_clear_feature_journal(fs->super); goto no_journal; } if (!quiet) { printf(_("Creating journal (%u blocks): "), journal_blocks); fflush(stdout); } retval = ext2fs_add_journal_inode2(fs, journal_blocks, journal_location, journal_flags); if (retval) { com_err(program_name, retval, "%s", _("\n\twhile trying to create journal")); exit(1); } if (!quiet) printf("%s", _("done\n")); } no_journal: if (!super_only && ext2fs_has_feature_mmp(fs->super)) { retval = ext2fs_mmp_init(fs); if (retval) { fprintf(stderr, "%s", _("\nError while enabling multiple " "mount protection feature.")); exit(1); } if (!quiet) printf(_("Multiple mount protection is enabled " "with update interval %d seconds.\n"), fs->super->s_mmp_update_interval); } if (ext2fs_has_feature_bigalloc(&fs_param)) fix_cluster_bg_counts(fs); if (ext2fs_has_feature_project(&fs_param)) quotatype_bits |= QUOTA_PRJ_BIT; if (ext2fs_has_feature_quota(&fs_param)) create_quota_inodes(fs); retval = mk_hugefiles(fs, device_name); if (retval) com_err(program_name, retval, "while creating huge files"); /* Copy files from the specified directory */ if (src_root_dir) { if (!quiet) printf("%s", _("Copying files into the device: ")); retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir, EXT2_ROOT_INO); if (retval) { com_err(program_name, retval, "%s", _("while populating file system")); exit(1); } else if (!quiet) printf("%s", _("done\n")); } if (!quiet) printf("%s", _("Writing superblocks and " "filesystem accounting information: ")); checkinterval = fs->super->s_checkinterval; max_mnt_count = fs->super->s_max_mnt_count; retval = ext2fs_close_free(&fs); if (retval) { fprintf(stderr, "%s", _("\nWarning, had trouble writing out superblocks.")); } else if (!quiet) { printf("%s", _("done\n\n")); if (!getenv("MKE2FS_SKIP_CHECK_MSG")) print_check_message(max_mnt_count, checkinterval); } remove_error_table(&et_ext2_error_table); remove_error_table(&et_prof_error_table); profile_release(profile); for (i=0; fs_types[i]; i++) free(fs_types[i]); free(fs_types); return retval; }