Whamcloud - gitweb
Add project quota support
[tools/e2fsprogs.git] / misc / mke2fs.c
1 /*
2  * mke2fs.c - Make a ext2fs filesystem.
3  *
4  * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
5  *      2003, 2004, 2005 by Theodore Ts'o.
6  *
7  * %Begin-Header%
8  * This file may be redistributed under the terms of the GNU Public
9  * License.
10  * %End-Header%
11  */
12
13 /* Usage: mke2fs [options] device
14  *
15  * The device may be a block device or a image of one, but this isn't
16  * enforced (but it's not much fun on a character device :-).
17  */
18
19 #define _XOPEN_SOURCE 600 /* for inclusion of PATH_MAX */
20
21 #include "config.h"
22 #include <stdio.h>
23 #include <string.h>
24 #include <strings.h>
25 #include <ctype.h>
26 #include <time.h>
27 #ifdef __linux__
28 #include <sys/utsname.h>
29 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
30 #endif
31 #ifdef HAVE_GETOPT_H
32 #include <getopt.h>
33 #else
34 extern char *optarg;
35 extern int optind;
36 #endif
37 #ifdef HAVE_UNISTD_H
38 #include <unistd.h>
39 #endif
40 #ifdef HAVE_STDLIB_H
41 #include <stdlib.h>
42 #endif
43 #ifdef HAVE_ERRNO_H
44 #include <errno.h>
45 #endif
46 #include <sys/ioctl.h>
47 #include <libgen.h>
48 #include <limits.h>
49 #include <blkid/blkid.h>
50
51 #include "ext2fs/ext2_fs.h"
52 #include "ext2fs/ext2fsP.h"
53 #include "uuid/uuid.h"
54 #include "util.h"
55 #include "support/nls-enable.h"
56 #include "support/plausible.h"
57 #include "support/profile.h"
58 #include "support/prof_err.h"
59 #include "../version.h"
60 #include "support/quotaio.h"
61 #include "mke2fs.h"
62 #include "create_inode.h"
63
64 #define STRIDE_LENGTH 8
65
66 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
67
68 #ifndef __sparc__
69 #define ZAP_BOOTBLOCK
70 #endif
71
72 #define DISCARD_STEP_MB         (2048)
73
74 extern int isatty(int);
75 extern FILE *fpopen(const char *cmd, const char *mode);
76
77 const char * program_name = "mke2fs";
78 static const char * device_name /* = NULL */;
79
80 /* Command line options */
81 static int      cflag;
82 int     verbose;
83 int     quiet;
84 static int      super_only;
85 static int      discard = 1;    /* attempt to discard device before fs creation */
86 static int      direct_io;
87 static int      force;
88 static int      noaction;
89 static int      num_backups = 2; /* number of backup bg's for sparse_super2 */
90 static uid_t    root_uid;
91 static gid_t    root_gid;
92 int     journal_size;
93 int     journal_flags;
94 static int      lazy_itable_init;
95 static int      packed_meta_blocks;
96 static char     *bad_blocks_filename = NULL;
97 static __u32    fs_stride;
98 /* Initialize usr/grp quotas by default */
99 static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
100 static __u64    offset;
101 static blk64_t journal_location = ~0LL;
102 static int      proceed_delay = -1;
103 static blk64_t  dev_size;
104
105 static struct ext2_super_block fs_param;
106 static char *fs_uuid = NULL;
107 static char *creator_os;
108 static char *volume_label;
109 static char *mount_dir;
110 char *journal_device;
111 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
112 char **fs_types;
113 const char *src_root_dir;  /* Copy files from the specified directory */
114 static char *undo_file;
115
116 static profile_t        profile;
117
118 static int sys_page_size = 4096;
119
120 static int errors_behavior = 0;
121
122 static void usage(void)
123 {
124         fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
125         "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
126         "[-J journal-options]\n"
127         "\t[-G flex-group-size] [-N number-of-inodes] "
128         "[-d root-directory]\n"
129         "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
130         "\t[-g blocks-per-group] [-L volume-label] "
131         "[-M last-mounted-directory]\n\t[-O feature[,...]] "
132         "[-r fs-revision] [-E extended-option[,...]]\n"
133         "\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
134         "[-z undo_file]\n"
135         "\t[-jnqvDFKSV] device [blocks-count]\n"),
136                 program_name);
137         exit(1);
138 }
139
140 static int int_log2(unsigned long long arg)
141 {
142         int     l = 0;
143
144         arg >>= 1;
145         while (arg) {
146                 l++;
147                 arg >>= 1;
148         }
149         return l;
150 }
151
152 int int_log10(unsigned long long arg)
153 {
154         int     l;
155
156         for (l=0; arg ; l++)
157                 arg = arg / 10;
158         return l;
159 }
160
161 #ifdef __linux__
162 static int parse_version_number(const char *s)
163 {
164         int     major, minor, rev;
165         char    *endptr;
166         const char *cp = s;
167
168         if (!s)
169                 return 0;
170         major = strtol(cp, &endptr, 10);
171         if (cp == endptr || *endptr != '.')
172                 return 0;
173         cp = endptr + 1;
174         minor = strtol(cp, &endptr, 10);
175         if (cp == endptr || *endptr != '.')
176                 return 0;
177         cp = endptr + 1;
178         rev = strtol(cp, &endptr, 10);
179         if (cp == endptr)
180                 return 0;
181         return KERNEL_VERSION(major, minor, rev);
182 }
183
184 static int is_before_linux_ver(unsigned int major, unsigned int minor,
185                                unsigned int rev)
186 {
187         struct          utsname ut;
188         static int      linux_version_code = -1;
189
190         if (uname(&ut)) {
191                 perror("uname");
192                 exit(1);
193         }
194         if (linux_version_code < 0)
195                 linux_version_code = parse_version_number(ut.release);
196         if (linux_version_code == 0)
197                 return 0;
198
199         return linux_version_code < (int) KERNEL_VERSION(major, minor, rev);
200 }
201 #else
202 static int is_before_linux_ver(unsigned int major, unsigned int minor,
203                                unsigned int rev)
204 {
205         return 0;
206 }
207 #endif
208
209 /*
210  * Helper function for read_bb_file and test_disk
211  */
212 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
213 {
214         fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
215         return;
216 }
217
218 /*
219  * Reads the bad blocks list from a file
220  */
221 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
222                          const char *bad_blocks_file)
223 {
224         FILE            *f;
225         errcode_t       retval;
226
227         f = fopen(bad_blocks_file, "r");
228         if (!f) {
229                 com_err("read_bad_blocks_file", errno,
230                         _("while trying to open %s"), bad_blocks_file);
231                 exit(1);
232         }
233         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
234         fclose (f);
235         if (retval) {
236                 com_err("ext2fs_read_bb_FILE", retval, "%s",
237                         _("while reading in list of bad blocks from file"));
238                 exit(1);
239         }
240 }
241
242 /*
243  * Runs the badblocks program to test the disk
244  */
245 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
246 {
247         FILE            *f;
248         errcode_t       retval;
249         char            buf[1024];
250
251         sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
252                 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
253                 fs->device_name, ext2fs_blocks_count(fs->super)-1);
254         if (verbose)
255                 printf(_("Running command: %s\n"), buf);
256         f = popen(buf, "r");
257         if (!f) {
258                 com_err("popen", errno,
259                         _("while trying to run '%s'"), buf);
260                 exit(1);
261         }
262         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
263         pclose(f);
264         if (retval) {
265                 com_err("ext2fs_read_bb_FILE", retval, "%s",
266                         _("while processing list of bad blocks from program"));
267                 exit(1);
268         }
269 }
270
271 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
272 {
273         dgrp_t                  i;
274         blk_t                   j;
275         unsigned                must_be_good;
276         blk_t                   blk;
277         badblocks_iterate       bb_iter;
278         errcode_t               retval;
279         blk_t                   group_block;
280         int                     group;
281         int                     group_bad;
282
283         if (!bb_list)
284                 return;
285
286         /*
287          * The primary superblock and group descriptors *must* be
288          * good; if not, abort.
289          */
290         must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
291         for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
292                 if (ext2fs_badblocks_list_test(bb_list, i)) {
293                         fprintf(stderr, _("Block %d in primary "
294                                 "superblock/group descriptor area bad.\n"), i);
295                         fprintf(stderr, _("Blocks %u through %u must be good "
296                                 "in order to build a filesystem.\n"),
297                                 fs->super->s_first_data_block, must_be_good);
298                         fputs(_("Aborting....\n"), stderr);
299                         exit(1);
300                 }
301         }
302
303         /*
304          * See if any of the bad blocks are showing up in the backup
305          * superblocks and/or group descriptors.  If so, issue a
306          * warning and adjust the block counts appropriately.
307          */
308         group_block = fs->super->s_first_data_block +
309                 fs->super->s_blocks_per_group;
310
311         for (i = 1; i < fs->group_desc_count; i++) {
312                 group_bad = 0;
313                 for (j=0; j < fs->desc_blocks+1; j++) {
314                         if (ext2fs_badblocks_list_test(bb_list,
315                                                        group_block + j)) {
316                                 if (!group_bad)
317                                         fprintf(stderr,
318 _("Warning: the backup superblock/group descriptors at block %u contain\n"
319 "       bad blocks.\n\n"),
320                                                 group_block);
321                                 group_bad++;
322                                 group = ext2fs_group_of_blk2(fs, group_block+j);
323                                 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
324                                 ext2fs_group_desc_csum_set(fs, group);
325                                 ext2fs_free_blocks_count_add(fs->super, 1);
326                         }
327                 }
328                 group_block += fs->super->s_blocks_per_group;
329         }
330
331         /*
332          * Mark all the bad blocks as used...
333          */
334         retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
335         if (retval) {
336                 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
337                         _("while marking bad blocks as used"));
338                 exit(1);
339         }
340         while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
341                 ext2fs_mark_block_bitmap2(fs->block_map, EXT2FS_B2C(fs, blk));
342         ext2fs_badblocks_list_iterate_end(bb_iter);
343 }
344
345 static void write_reserved_inodes(ext2_filsys fs)
346 {
347         errcode_t       retval;
348         ext2_ino_t      ino;
349         struct ext2_inode *inode;
350
351         retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
352         if (retval) {
353                 com_err("inode_init", retval, _("while allocating memory"));
354                 exit(1);
355         }
356
357         for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++)
358                 ext2fs_write_inode_full(fs, ino, inode,
359                                         EXT2_INODE_SIZE(fs->super));
360
361         ext2fs_free_mem(&inode);
362 }
363
364 static errcode_t packed_allocate_tables(ext2_filsys fs)
365 {
366         errcode_t       retval;
367         dgrp_t          i;
368         blk64_t         goal = 0;
369
370         for (i = 0; i < fs->group_desc_count; i++) {
371                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
372                 if (retval)
373                         return retval;
374                 ext2fs_block_alloc_stats2(fs, goal, +1);
375                 ext2fs_block_bitmap_loc_set(fs, i, goal);
376         }
377         for (i = 0; i < fs->group_desc_count; i++) {
378                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
379                 if (retval)
380                         return retval;
381                 ext2fs_block_alloc_stats2(fs, goal, +1);
382                 ext2fs_inode_bitmap_loc_set(fs, i, goal);
383         }
384         for (i = 0; i < fs->group_desc_count; i++) {
385                 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
386                 retval = ext2fs_get_free_blocks2(fs, goal, end,
387                                                  fs->inode_blocks_per_group,
388                                                  fs->block_map, &goal);
389                 if (retval)
390                         return retval;
391                 ext2fs_block_alloc_stats_range(fs, goal,
392                                                fs->inode_blocks_per_group, +1);
393                 ext2fs_inode_table_loc_set(fs, i, goal);
394                 ext2fs_group_desc_csum_set(fs, i);
395         }
396         return 0;
397 }
398
399 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
400 {
401         errcode_t       retval;
402         blk64_t         blk;
403         dgrp_t          i;
404         int             num;
405         struct ext2fs_numeric_progress_struct progress;
406
407         ext2fs_numeric_progress_init(fs, &progress,
408                                      _("Writing inode tables: "),
409                                      fs->group_desc_count);
410
411         for (i = 0; i < fs->group_desc_count; i++) {
412                 ext2fs_numeric_progress_update(fs, &progress, i);
413
414                 blk = ext2fs_inode_table_loc(fs, i);
415                 num = fs->inode_blocks_per_group;
416
417                 if (lazy_flag)
418                         num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
419                                                ext2fs_bg_itable_unused(fs, i)) *
420                                               EXT2_INODE_SIZE(fs->super),
421                                               EXT2_BLOCK_SIZE(fs->super));
422                 if (!lazy_flag || itable_zeroed) {
423                         /* The kernel doesn't need to zero the itable blocks */
424                         ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
425                         ext2fs_group_desc_csum_set(fs, i);
426                 }
427                 if (!itable_zeroed) {
428                         retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
429                         if (retval) {
430                                 fprintf(stderr, _("\nCould not write %d "
431                                           "blocks in inode table starting at %llu: %s\n"),
432                                         num, blk, error_message(retval));
433                                 exit(1);
434                         }
435                 }
436                 if (sync_kludge) {
437                         if (sync_kludge == 1)
438                                 sync();
439                         else if ((i % sync_kludge) == 0)
440                                 sync();
441                 }
442         }
443         ext2fs_numeric_progress_close(fs, &progress,
444                                       _("done                            \n"));
445
446         /* Reserved inodes must always have correct checksums */
447         if (fs->super->s_creator_os == EXT2_OS_LINUX &&
448             ext2fs_has_feature_metadata_csum(fs->super))
449                 write_reserved_inodes(fs);
450 }
451
452 static void create_root_dir(ext2_filsys fs)
453 {
454         errcode_t               retval;
455         struct ext2_inode       inode;
456
457         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
458         if (retval) {
459                 com_err("ext2fs_mkdir", retval, "%s",
460                         _("while creating root dir"));
461                 exit(1);
462         }
463         if (root_uid != 0 || root_gid != 0) {
464                 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
465                 if (retval) {
466                         com_err("ext2fs_read_inode", retval, "%s",
467                                 _("while reading root inode"));
468                         exit(1);
469                 }
470
471                 inode.i_uid = root_uid;
472                 ext2fs_set_i_uid_high(inode, root_uid >> 16);
473                 inode.i_gid = root_gid;
474                 ext2fs_set_i_gid_high(inode, root_gid >> 16);
475
476                 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
477                 if (retval) {
478                         com_err("ext2fs_write_inode", retval, "%s",
479                                 _("while setting root inode ownership"));
480                         exit(1);
481                 }
482         }
483 }
484
485 static void create_lost_and_found(ext2_filsys fs)
486 {
487         unsigned int            lpf_size = 0;
488         errcode_t               retval;
489         ext2_ino_t              ino;
490         const char              *name = "lost+found";
491         int                     i;
492
493         fs->umask = 077;
494         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
495         if (retval) {
496                 com_err("ext2fs_mkdir", retval, "%s",
497                         _("while creating /lost+found"));
498                 exit(1);
499         }
500
501         retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
502         if (retval) {
503                 com_err("ext2_lookup", retval, "%s",
504                         _("while looking up /lost+found"));
505                 exit(1);
506         }
507
508         for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
509                 /* Ensure that lost+found is at least 2 blocks, so we always
510                  * test large empty blocks for big-block filesystems.  */
511                 if ((lpf_size += fs->blocksize) >= 16*1024 &&
512                     lpf_size >= 2 * fs->blocksize)
513                         break;
514                 retval = ext2fs_expand_dir(fs, ino);
515                 if (retval) {
516                         com_err("ext2fs_expand_dir", retval, "%s",
517                                 _("while expanding /lost+found"));
518                         exit(1);
519                 }
520         }
521 }
522
523 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
524 {
525         errcode_t       retval;
526
527         ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
528         ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
529         retval = ext2fs_update_bb_inode(fs, bb_list);
530         if (retval) {
531                 com_err("ext2fs_update_bb_inode", retval, "%s",
532                         _("while setting bad block inode"));
533                 exit(1);
534         }
535
536 }
537
538 static void reserve_inodes(ext2_filsys fs)
539 {
540         ext2_ino_t      i;
541
542         for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
543                 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
544         ext2fs_mark_ib_dirty(fs);
545 }
546
547 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
548 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
549 #define BSD_LABEL_OFFSET        64
550
551 static void zap_sector(ext2_filsys fs, int sect, int nsect)
552 {
553         char *buf;
554         int retval;
555         unsigned int *magic;
556
557         buf = malloc(512*nsect);
558         if (!buf) {
559                 printf(_("Out of memory erasing sectors %d-%d\n"),
560                        sect, sect + nsect - 1);
561                 exit(1);
562         }
563
564         if (sect == 0) {
565                 /* Check for a BSD disklabel, and don't erase it if so */
566                 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
567                 if (retval)
568                         fprintf(stderr,
569                                 _("Warning: could not read block 0: %s\n"),
570                                 error_message(retval));
571                 else {
572                         magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
573                         if ((*magic == BSD_DISKMAGIC) ||
574                             (*magic == BSD_MAGICDISK))
575                                 return;
576                 }
577         }
578
579         memset(buf, 0, 512*nsect);
580         io_channel_set_blksize(fs->io, 512);
581         retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
582         io_channel_set_blksize(fs->io, fs->blocksize);
583         free(buf);
584         if (retval)
585                 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
586                         sect, error_message(retval));
587 }
588
589 static void create_journal_dev(ext2_filsys fs)
590 {
591         struct ext2fs_numeric_progress_struct progress;
592         errcode_t               retval;
593         char                    *buf;
594         blk64_t                 blk, err_blk;
595         int                     c, count, err_count;
596
597         retval = ext2fs_create_journal_superblock(fs,
598                                   ext2fs_blocks_count(fs->super), 0, &buf);
599         if (retval) {
600                 com_err("create_journal_dev", retval, "%s",
601                         _("while initializing journal superblock"));
602                 exit(1);
603         }
604
605         if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
606                 goto write_superblock;
607
608         ext2fs_numeric_progress_init(fs, &progress,
609                                      _("Zeroing journal device: "),
610                                      ext2fs_blocks_count(fs->super));
611         blk = 0;
612         count = ext2fs_blocks_count(fs->super);
613         while (count > 0) {
614                 if (count > 1024)
615                         c = 1024;
616                 else
617                         c = count;
618                 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
619                 if (retval) {
620                         com_err("create_journal_dev", retval,
621                                 _("while zeroing journal device "
622                                   "(block %llu, count %d)"),
623                                 err_blk, err_count);
624                         exit(1);
625                 }
626                 blk += c;
627                 count -= c;
628                 ext2fs_numeric_progress_update(fs, &progress, blk);
629         }
630
631         ext2fs_numeric_progress_close(fs, &progress, NULL);
632 write_superblock:
633         retval = io_channel_write_blk64(fs->io,
634                                         fs->super->s_first_data_block+1,
635                                         1, buf);
636         if (retval) {
637                 com_err("create_journal_dev", retval, "%s",
638                         _("while writing journal superblock"));
639                 exit(1);
640         }
641 }
642
643 static void show_stats(ext2_filsys fs)
644 {
645         struct ext2_super_block *s = fs->super;
646         char                    buf[80];
647         char                    *os;
648         blk64_t                 group_block;
649         dgrp_t                  i;
650         int                     need, col_left;
651
652         if (!verbose) {
653                 printf(_("Creating filesystem with %llu %dk blocks and "
654                          "%u inodes\n"),
655                        ext2fs_blocks_count(s), fs->blocksize >> 10,
656                        s->s_inodes_count);
657                 goto skip_details;
658         }
659
660         if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
661                 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
662                        ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
663
664         memset(buf, 0, sizeof(buf));
665         strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
666         printf(_("Filesystem label=%s\n"), buf);
667         os = e2p_os2string(fs->super->s_creator_os);
668         if (os)
669                 printf(_("OS type: %s\n"), os);
670         free(os);
671         printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
672                 s->s_log_block_size);
673         if (ext2fs_has_feature_bigalloc(fs->super))
674                 printf(_("Cluster size=%u (log=%u)\n"),
675                        fs->blocksize << fs->cluster_ratio_bits,
676                        s->s_log_cluster_size);
677         else
678                 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
679                        s->s_log_cluster_size);
680         printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
681                s->s_raid_stride, s->s_raid_stripe_width);
682         printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
683                ext2fs_blocks_count(s));
684         printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
685                 ext2fs_r_blocks_count(s),
686                100.0 *  ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
687         printf(_("First data block=%u\n"), s->s_first_data_block);
688         if (root_uid != 0 || root_gid != 0)
689                 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
690         if (s->s_reserved_gdt_blocks)
691                 printf(_("Maximum filesystem blocks=%lu\n"),
692                        (s->s_reserved_gdt_blocks + fs->desc_blocks) *
693                        EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
694         if (fs->group_desc_count > 1)
695                 printf(_("%u block groups\n"), fs->group_desc_count);
696         else
697                 printf(_("%u block group\n"), fs->group_desc_count);
698         if (ext2fs_has_feature_bigalloc(fs->super))
699                 printf(_("%u blocks per group, %u clusters per group\n"),
700                        s->s_blocks_per_group, s->s_clusters_per_group);
701         else
702                 printf(_("%u blocks per group, %u fragments per group\n"),
703                        s->s_blocks_per_group, s->s_clusters_per_group);
704         printf(_("%u inodes per group\n"), s->s_inodes_per_group);
705
706 skip_details:
707         if (fs->group_desc_count == 1) {
708                 printf("\n");
709                 return;
710         }
711
712         if (!e2p_is_null_uuid(s->s_uuid))
713                 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
714         printf("%s", _("Superblock backups stored on blocks: "));
715         group_block = s->s_first_data_block;
716         col_left = 0;
717         for (i = 1; i < fs->group_desc_count; i++) {
718                 group_block += s->s_blocks_per_group;
719                 if (!ext2fs_bg_has_super(fs, i))
720                         continue;
721                 if (i != 1)
722                         printf(", ");
723                 need = int_log10(group_block) + 2;
724                 if (need > col_left) {
725                         printf("\n\t");
726                         col_left = 72;
727                 }
728                 col_left -= need;
729                 printf("%llu", group_block);
730         }
731         printf("\n\n");
732 }
733
734 /*
735  * Returns true if making a file system for the Hurd, else 0
736  */
737 static int for_hurd(const char *os)
738 {
739         if (!os) {
740 #ifdef __GNU__
741                 return 1;
742 #else
743                 return 0;
744 #endif
745         }
746         if (isdigit(*os))
747                 return (atoi(os) == EXT2_OS_HURD);
748         return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
749 }
750
751 /*
752  * Set the S_CREATOR_OS field.  Return true if OS is known,
753  * otherwise, 0.
754  */
755 static int set_os(struct ext2_super_block *sb, char *os)
756 {
757         if (isdigit (*os))
758                 sb->s_creator_os = atoi (os);
759         else if (strcasecmp(os, "linux") == 0)
760                 sb->s_creator_os = EXT2_OS_LINUX;
761         else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
762                 sb->s_creator_os = EXT2_OS_HURD;
763         else if (strcasecmp(os, "freebsd") == 0)
764                 sb->s_creator_os = EXT2_OS_FREEBSD;
765         else if (strcasecmp(os, "lites") == 0)
766                 sb->s_creator_os = EXT2_OS_LITES;
767         else
768                 return 0;
769         return 1;
770 }
771
772 #define PATH_SET "PATH=/sbin"
773
774 static int option_handle_function(char *token, void *data)
775 {
776         if (!strncmp(token, "usr", 3)) {
777                 quotatype_bits |= QUOTA_USR_BIT;
778         } else if (!strncmp(token, "grp", 3)) {
779                 quotatype_bits |= QUOTA_GRP_BIT;
780         } else if (!strncmp(token, "prj", 3)) {
781                 quotatype_bits |= QUOTA_PRJ_BIT;
782         } else {
783                 fprintf(stderr, _("Invalid quotatype parameter: %s\n"),
784                                 token);
785                 return 1;
786         }
787         return 0;
788
789 }
790
791 static void parse_extended_opts(struct ext2_super_block *param,
792                                 const char *opts)
793 {
794         char    *buf, *token, *next, *p, *arg, *badopt = 0;
795         int     len;
796         int     r_usage = 0;
797         int     ret;
798
799         len = strlen(opts);
800         buf = malloc(len+1);
801         if (!buf) {
802                 fprintf(stderr, "%s",
803                         _("Couldn't allocate memory to parse options!\n"));
804                 exit(1);
805         }
806         strcpy(buf, opts);
807         for (token = buf; token && *token; token = next) {
808                 p = strchr(token, ',');
809                 next = 0;
810                 if (p) {
811                         *p = 0;
812                         next = p+1;
813                 }
814                 arg = strchr(token, '=');
815                 if (arg) {
816                         *arg = 0;
817                         arg++;
818                 }
819                 if (strcmp(token, "desc-size") == 0 ||
820                     strcmp(token, "desc_size") == 0) {
821                         int desc_size;
822
823                         if (!ext2fs_has_feature_64bit(&fs_param)) {
824                                 fprintf(stderr,
825                                         _("%s requires '-O 64bit'\n"), token);
826                                 r_usage++;
827                                 continue;
828                         }
829                         if (param->s_reserved_gdt_blocks != 0) {
830                                 fprintf(stderr,
831                                         _("'%s' must be before 'resize=%u'\n"),
832                                         token, param->s_reserved_gdt_blocks);
833                                 r_usage++;
834                                 continue;
835                         }
836                         if (!arg) {
837                                 r_usage++;
838                                 badopt = token;
839                                 continue;
840                         }
841                         desc_size = strtoul(arg, &p, 0);
842                         if (*p || (desc_size & (desc_size - 1))) {
843                                 fprintf(stderr,
844                                         _("Invalid desc_size: '%s'\n"), arg);
845                                 r_usage++;
846                                 continue;
847                         }
848                         param->s_desc_size = desc_size;
849                 } else if (strcmp(token, "offset") == 0) {
850                         if (!arg) {
851                                 r_usage++;
852                                 badopt = token;
853                                 continue;
854                         }
855                         offset = strtoull(arg, &p, 0);
856                         if (*p) {
857                                 fprintf(stderr, _("Invalid offset: %s\n"),
858                                         arg);
859                                 r_usage++;
860                                 continue;
861                         }
862                 } else if (strcmp(token, "mmp_update_interval") == 0) {
863                         if (!arg) {
864                                 r_usage++;
865                                 badopt = token;
866                                 continue;
867                         }
868                         param->s_mmp_update_interval = strtoul(arg, &p, 0);
869                         if (*p) {
870                                 fprintf(stderr,
871                                         _("Invalid mmp_update_interval: %s\n"),
872                                         arg);
873                                 r_usage++;
874                                 continue;
875                         }
876                 } else if (strcmp(token, "num_backup_sb") == 0) {
877                         if (!arg) {
878                                 r_usage++;
879                                 badopt = token;
880                                 continue;
881                         }
882                         num_backups = strtoul(arg, &p, 0);
883                         if (*p || num_backups > 2) {
884                                 fprintf(stderr,
885                                         _("Invalid # of backup "
886                                           "superblocks: %s\n"),
887                                         arg);
888                                 r_usage++;
889                                 continue;
890                         }
891                 } else if (strcmp(token, "packed_meta_blocks") == 0) {
892                         if (arg)
893                                 packed_meta_blocks = strtoul(arg, &p, 0);
894                         else
895                                 packed_meta_blocks = 1;
896                         if (packed_meta_blocks)
897                                 journal_location = 0;
898                 } else if (strcmp(token, "stride") == 0) {
899                         if (!arg) {
900                                 r_usage++;
901                                 badopt = token;
902                                 continue;
903                         }
904                         param->s_raid_stride = strtoul(arg, &p, 0);
905                         if (*p) {
906                                 fprintf(stderr,
907                                         _("Invalid stride parameter: %s\n"),
908                                         arg);
909                                 r_usage++;
910                                 continue;
911                         }
912                 } else if (strcmp(token, "stripe-width") == 0 ||
913                            strcmp(token, "stripe_width") == 0) {
914                         if (!arg) {
915                                 r_usage++;
916                                 badopt = token;
917                                 continue;
918                         }
919                         param->s_raid_stripe_width = strtoul(arg, &p, 0);
920                         if (*p) {
921                                 fprintf(stderr,
922                                         _("Invalid stripe-width parameter: %s\n"),
923                                         arg);
924                                 r_usage++;
925                                 continue;
926                         }
927                 } else if (!strcmp(token, "resize")) {
928                         blk64_t resize;
929                         unsigned long bpg, rsv_groups;
930                         unsigned long group_desc_count, desc_blocks;
931                         unsigned int gdpb, blocksize;
932                         int rsv_gdb;
933
934                         if (!arg) {
935                                 r_usage++;
936                                 badopt = token;
937                                 continue;
938                         }
939
940                         resize = parse_num_blocks2(arg,
941                                                    param->s_log_block_size);
942
943                         if (resize == 0) {
944                                 fprintf(stderr,
945                                         _("Invalid resize parameter: %s\n"),
946                                         arg);
947                                 r_usage++;
948                                 continue;
949                         }
950                         if (resize <= ext2fs_blocks_count(param)) {
951                                 fprintf(stderr, "%s",
952                                         _("The resize maximum must be greater "
953                                           "than the filesystem size.\n"));
954                                 r_usage++;
955                                 continue;
956                         }
957
958                         blocksize = EXT2_BLOCK_SIZE(param);
959                         bpg = param->s_blocks_per_group;
960                         if (!bpg)
961                                 bpg = blocksize * 8;
962                         gdpb = EXT2_DESC_PER_BLOCK(param);
963                         group_desc_count = (__u32) ext2fs_div64_ceil(
964                                 ext2fs_blocks_count(param), bpg);
965                         desc_blocks = (group_desc_count +
966                                        gdpb - 1) / gdpb;
967                         rsv_groups = ext2fs_div64_ceil(resize, bpg);
968                         rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
969                                 desc_blocks;
970                         if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
971                                 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
972
973                         if (rsv_gdb > 0) {
974                                 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
975                                         fprintf(stderr, "%s",
976         _("On-line resizing not supported with revision 0 filesystems\n"));
977                                         free(buf);
978                                         exit(1);
979                                 }
980                                 ext2fs_set_feature_resize_inode(param);
981
982                                 param->s_reserved_gdt_blocks = rsv_gdb;
983                         }
984                 } else if (!strcmp(token, "test_fs")) {
985                         param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
986                 } else if (!strcmp(token, "lazy_itable_init")) {
987                         if (arg)
988                                 lazy_itable_init = strtoul(arg, &p, 0);
989                         else
990                                 lazy_itable_init = 1;
991                 } else if (!strcmp(token, "lazy_journal_init")) {
992                         if (arg)
993                                 journal_flags |= strtoul(arg, &p, 0) ?
994                                                 EXT2_MKJOURNAL_LAZYINIT : 0;
995                         else
996                                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
997                 } else if (!strcmp(token, "root_owner")) {
998                         if (arg) {
999                                 root_uid = strtoul(arg, &p, 0);
1000                                 if (*p != ':') {
1001                                         fprintf(stderr,
1002                                                 _("Invalid root_owner: '%s'\n"),
1003                                                 arg);
1004                                         r_usage++;
1005                                         continue;
1006                                 }
1007                                 p++;
1008                                 root_gid = strtoul(p, &p, 0);
1009                                 if (*p) {
1010                                         fprintf(stderr,
1011                                                 _("Invalid root_owner: '%s'\n"),
1012                                                 arg);
1013                                         r_usage++;
1014                                         continue;
1015                                 }
1016                         } else {
1017                                 root_uid = getuid();
1018                                 root_gid = getgid();
1019                         }
1020                 } else if (!strcmp(token, "discard")) {
1021                         discard = 1;
1022                 } else if (!strcmp(token, "nodiscard")) {
1023                         discard = 0;
1024                 } else if (!strcmp(token, "quotatype")) {
1025                         if (!arg) {
1026                                 r_usage++;
1027                                 badopt = token;
1028                                 continue;
1029                         }
1030                         ret = parse_quota_opts(arg, option_handle_function,
1031                                                NULL);
1032                         if (ret) {
1033                                 r_usage++;
1034                                 continue;
1035                         }
1036                 } else {
1037                         r_usage++;
1038                         badopt = token;
1039                 }
1040         }
1041         if (r_usage) {
1042                 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1043                         "Extended options are separated by commas, "
1044                         "and may take an argument which\n"
1045                         "\tis set off by an equals ('=') sign.\n\n"
1046                         "Valid extended options are:\n"
1047                         "\tmmp_update_interval=<interval>\n"
1048                         "\tnum_backup_sb=<0|1|2>\n"
1049                         "\tstride=<RAID per-disk data chunk in blocks>\n"
1050                         "\tstripe-width=<RAID stride * data disks in blocks>\n"
1051                         "\toffset=<offset to create the file system>\n"
1052                         "\tresize=<resize maximum size in blocks>\n"
1053                         "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1054                         "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1055                         "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1056                         "\troot_uid=<uid of root directory>\n"
1057                         "\troot_gid=<gid of root directory>\n"
1058                         "\ttest_fs\n"
1059                         "\tdiscard\n"
1060                         "\tnodiscard\n"
1061                         "\tquotatype=<usr OR grp>\n\n"),
1062                         badopt ? badopt : "");
1063                 free(buf);
1064                 exit(1);
1065         }
1066         if (param->s_raid_stride &&
1067             (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1068                 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1069                                   "multiple of stride %u.\n\n"),
1070                         param->s_raid_stripe_width, param->s_raid_stride);
1071
1072         free(buf);
1073 }
1074
1075 static __u32 ok_features[3] = {
1076         /* Compat */
1077         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1078                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1079                 EXT2_FEATURE_COMPAT_DIR_INDEX |
1080                 EXT2_FEATURE_COMPAT_EXT_ATTR |
1081                 EXT4_FEATURE_COMPAT_SPARSE_SUPER2,
1082         /* Incompat */
1083         EXT2_FEATURE_INCOMPAT_FILETYPE|
1084                 EXT3_FEATURE_INCOMPAT_EXTENTS|
1085                 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1086                 EXT2_FEATURE_INCOMPAT_META_BG|
1087                 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1088                 EXT4_FEATURE_INCOMPAT_MMP |
1089                 EXT4_FEATURE_INCOMPAT_64BIT|
1090                 EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1091                 EXT4_FEATURE_INCOMPAT_ENCRYPT,
1092         /* R/O compat */
1093         EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1094                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1095                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1096                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1097                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1098                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1099                 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1100                 EXT4_FEATURE_RO_COMPAT_QUOTA|
1101                 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1102                 EXT4_FEATURE_RO_COMPAT_PROJECT
1103 };
1104
1105
1106 static void syntax_err_report(const char *filename, long err, int line_num)
1107 {
1108         fprintf(stderr,
1109                 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1110                 filename, line_num, error_message(err));
1111         exit(1);
1112 }
1113
1114 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1115
1116 static void edit_feature(const char *str, __u32 *compat_array)
1117 {
1118         if (!str)
1119                 return;
1120
1121         if (e2p_edit_feature(str, compat_array, ok_features)) {
1122                 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1123                         str);
1124                 exit(1);
1125         }
1126 }
1127
1128 static void edit_mntopts(const char *str, __u32 *mntopts)
1129 {
1130         if (!str)
1131                 return;
1132
1133         if (e2p_edit_mntopts(str, mntopts, ~0)) {
1134                 fprintf(stderr, _("Invalid mount option set: %s\n"),
1135                         str);
1136                 exit(1);
1137         }
1138 }
1139
1140 struct str_list {
1141         char **list;
1142         int num;
1143         int max;
1144 };
1145
1146 static errcode_t init_list(struct str_list *sl)
1147 {
1148         sl->num = 0;
1149         sl->max = 0;
1150         sl->list = malloc((sl->max+1) * sizeof(char *));
1151         if (!sl->list)
1152                 return ENOMEM;
1153         sl->list[0] = 0;
1154         return 0;
1155 }
1156
1157 static errcode_t push_string(struct str_list *sl, const char *str)
1158 {
1159         char **new_list;
1160
1161         if (sl->num >= sl->max) {
1162                 sl->max += 2;
1163                 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1164                 if (!new_list)
1165                         return ENOMEM;
1166                 sl->list = new_list;
1167         }
1168         sl->list[sl->num] = malloc(strlen(str)+1);
1169         if (sl->list[sl->num] == 0)
1170                 return ENOMEM;
1171         strcpy(sl->list[sl->num], str);
1172         sl->num++;
1173         sl->list[sl->num] = 0;
1174         return 0;
1175 }
1176
1177 static void print_str_list(char **list)
1178 {
1179         char **cpp;
1180
1181         for (cpp = list; *cpp; cpp++) {
1182                 printf("'%s'", *cpp);
1183                 if (cpp[1])
1184                         fputs(", ", stdout);
1185         }
1186         fputc('\n', stdout);
1187 }
1188
1189 /*
1190  * Return TRUE if the profile has the given subsection
1191  */
1192 static int profile_has_subsection(profile_t prof, const char *section,
1193                                   const char *subsection)
1194 {
1195         void                    *state;
1196         const char              *names[4];
1197         char                    *name;
1198         int                     ret = 0;
1199
1200         names[0] = section;
1201         names[1] = subsection;
1202         names[2] = 0;
1203
1204         if (profile_iterator_create(prof, names,
1205                                     PROFILE_ITER_LIST_SECTION |
1206                                     PROFILE_ITER_RELATIONS_ONLY, &state))
1207                 return 0;
1208
1209         if ((profile_iterator(&state, &name, 0) == 0) && name) {
1210                 free(name);
1211                 ret = 1;
1212         }
1213
1214         profile_iterator_free(&state);
1215         return ret;
1216 }
1217
1218 static char **parse_fs_type(const char *fs_type,
1219                             const char *usage_types,
1220                             struct ext2_super_block *sb,
1221                             blk64_t fs_blocks_count,
1222                             char *progname)
1223 {
1224         const char      *ext_type = 0;
1225         char            *parse_str;
1226         char            *profile_type = 0;
1227         char            *cp, *t;
1228         const char      *size_type;
1229         struct str_list list;
1230         unsigned long long meg;
1231         int             is_hurd = for_hurd(creator_os);
1232
1233         if (init_list(&list))
1234                 return 0;
1235
1236         if (fs_type)
1237                 ext_type = fs_type;
1238         else if (is_hurd)
1239                 ext_type = "ext2";
1240         else if (!strcmp(program_name, "mke3fs"))
1241                 ext_type = "ext3";
1242         else if (!strcmp(program_name, "mke4fs"))
1243                 ext_type = "ext4";
1244         else if (progname) {
1245                 ext_type = strrchr(progname, '/');
1246                 if (ext_type)
1247                         ext_type++;
1248                 else
1249                         ext_type = progname;
1250
1251                 if (!strncmp(ext_type, "mkfs.", 5)) {
1252                         ext_type += 5;
1253                         if (ext_type[0] == 0)
1254                                 ext_type = 0;
1255                 } else
1256                         ext_type = 0;
1257         }
1258
1259         if (!ext_type) {
1260                 profile_get_string(profile, "defaults", "fs_type", 0,
1261                                    "ext2", &profile_type);
1262                 ext_type = profile_type;
1263                 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1264                         ext_type = "ext3";
1265         }
1266
1267
1268         if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1269             strcmp(ext_type, "ext2")) {
1270                 printf(_("\nYour mke2fs.conf file does not define the "
1271                          "%s filesystem type.\n"), ext_type);
1272                 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1273                     !strcmp(ext_type, "ext4dev")) {
1274                         printf("%s", _("You probably need to install an "
1275                                        "updated mke2fs.conf file.\n\n"));
1276                 }
1277                 if (!force) {
1278                         printf("%s", _("Aborting...\n"));
1279                         exit(1);
1280                 }
1281         }
1282
1283         meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1284         if (fs_blocks_count < 3 * meg)
1285                 size_type = "floppy";
1286         else if (fs_blocks_count < 512 * meg)
1287                 size_type = "small";
1288         else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1289                 size_type = "default";
1290         else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1291                 size_type = "big";
1292         else
1293                 size_type = "huge";
1294
1295         if (!usage_types)
1296                 usage_types = size_type;
1297
1298         parse_str = malloc(strlen(usage_types)+1);
1299         if (!parse_str) {
1300                 free(profile_type);
1301                 free(list.list);
1302                 return 0;
1303         }
1304         strcpy(parse_str, usage_types);
1305
1306         if (ext_type)
1307                 push_string(&list, ext_type);
1308         cp = parse_str;
1309         while (1) {
1310                 t = strchr(cp, ',');
1311                 if (t)
1312                         *t = '\0';
1313
1314                 if (*cp) {
1315                         if (profile_has_subsection(profile, "fs_types", cp))
1316                                 push_string(&list, cp);
1317                         else if (strcmp(cp, "default") != 0)
1318                                 fprintf(stderr,
1319                                         _("\nWarning: the fs_type %s is not "
1320                                           "defined in mke2fs.conf\n\n"),
1321                                         cp);
1322                 }
1323                 if (t)
1324                         cp = t+1;
1325                 else
1326                         break;
1327         }
1328         free(parse_str);
1329         free(profile_type);
1330         if (is_hurd)
1331                 push_string(&list, "hurd");
1332         return (list.list);
1333 }
1334
1335 char *get_string_from_profile(char **types, const char *opt,
1336                                      const char *def_val)
1337 {
1338         char *ret = 0;
1339         int i;
1340
1341         for (i=0; types[i]; i++);
1342         for (i-=1; i >=0 ; i--) {
1343                 profile_get_string(profile, "fs_types", types[i],
1344                                    opt, 0, &ret);
1345                 if (ret)
1346                         return ret;
1347         }
1348         profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1349         return (ret);
1350 }
1351
1352 int get_int_from_profile(char **types, const char *opt, int def_val)
1353 {
1354         int ret;
1355         char **cpp;
1356
1357         profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1358         for (cpp = types; *cpp; cpp++)
1359                 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1360         return ret;
1361 }
1362
1363 static unsigned int get_uint_from_profile(char **types, const char *opt,
1364                                         unsigned int def_val)
1365 {
1366         unsigned int ret;
1367         char **cpp;
1368
1369         profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1370         for (cpp = types; *cpp; cpp++)
1371                 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1372         return ret;
1373 }
1374
1375 static double get_double_from_profile(char **types, const char *opt,
1376                                       double def_val)
1377 {
1378         double ret;
1379         char **cpp;
1380
1381         profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1382         for (cpp = types; *cpp; cpp++)
1383                 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1384         return ret;
1385 }
1386
1387 int get_bool_from_profile(char **types, const char *opt, int def_val)
1388 {
1389         int ret;
1390         char **cpp;
1391
1392         profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1393         for (cpp = types; *cpp; cpp++)
1394                 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1395         return ret;
1396 }
1397
1398 extern const char *mke2fs_default_profile;
1399 static const char *default_files[] = { "<default>", 0 };
1400
1401 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1402 /*
1403  * Sets the geometry of a device (stripe/stride), and returns the
1404  * device's alignment offset, if any, or a negative error.
1405  */
1406 static int get_device_geometry(const char *file,
1407                                struct ext2_super_block *param,
1408                                unsigned int psector_size)
1409 {
1410         int rc = -1;
1411         unsigned int blocksize;
1412         blkid_probe pr;
1413         blkid_topology tp;
1414         unsigned long min_io;
1415         unsigned long opt_io;
1416         struct stat statbuf;
1417
1418         /* Nothing to do for a regular file */
1419         if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1420                 return 0;
1421
1422         pr = blkid_new_probe_from_filename(file);
1423         if (!pr)
1424                 goto out;
1425
1426         tp = blkid_probe_get_topology(pr);
1427         if (!tp)
1428                 goto out;
1429
1430         min_io = blkid_topology_get_minimum_io_size(tp);
1431         opt_io = blkid_topology_get_optimal_io_size(tp);
1432         blocksize = EXT2_BLOCK_SIZE(param);
1433         if ((min_io == 0) && (psector_size > blocksize))
1434                 min_io = psector_size;
1435         if ((opt_io == 0) && min_io)
1436                 opt_io = min_io;
1437         if ((opt_io == 0) && (psector_size > blocksize))
1438                 opt_io = psector_size;
1439
1440         /* setting stripe/stride to blocksize is pointless */
1441         if (min_io > blocksize)
1442                 param->s_raid_stride = min_io / blocksize;
1443         if (opt_io > blocksize)
1444                 param->s_raid_stripe_width = opt_io / blocksize;
1445
1446         rc = blkid_topology_get_alignment_offset(tp);
1447 out:
1448         blkid_free_probe(pr);
1449         return rc;
1450 }
1451 #endif
1452
1453 static void PRS(int argc, char *argv[])
1454 {
1455         int             b, c, flags;
1456         int             cluster_size = 0;
1457         char            *tmp, **cpp;
1458         int             blocksize = 0;
1459         int             inode_ratio = 0;
1460         int             inode_size = 0;
1461         unsigned long   flex_bg_size = 0;
1462         double          reserved_ratio = -1.0;
1463         int             lsector_size = 0, psector_size = 0;
1464         int             show_version_only = 0, is_device = 0;
1465         unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1466         errcode_t       retval;
1467         char *          oldpath = getenv("PATH");
1468         char *          extended_opts = 0;
1469         char *          fs_type = 0;
1470         char *          usage_types = 0;
1471         /*
1472          * NOTE: A few words about fs_blocks_count and blocksize:
1473          *
1474          * Initially, blocksize is set to zero, which implies 1024.
1475          * If -b is specified, blocksize is updated to the user's value.
1476          *
1477          * Next, the device size or the user's "blocks" command line argument
1478          * is used to set fs_blocks_count; the units are blocksize.
1479          *
1480          * Later, if blocksize hasn't been set and the profile specifies a
1481          * blocksize, then blocksize is updated and fs_blocks_count is scaled
1482          * appropriately.  Note the change in units!
1483          *
1484          * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1485          */
1486         blk64_t         fs_blocks_count = 0;
1487         long            sysval;
1488         int             s_opt = -1, r_opt = -1;
1489         char            *fs_features = 0;
1490         int             use_bsize;
1491         char            *newpath;
1492         int             pathlen = sizeof(PATH_SET) + 1;
1493
1494         if (oldpath)
1495                 pathlen += strlen(oldpath);
1496         newpath = malloc(pathlen);
1497         if (!newpath) {
1498                 fprintf(stderr, "%s",
1499                         _("Couldn't allocate memory for new PATH.\n"));
1500                 exit(1);
1501         }
1502         strcpy(newpath, PATH_SET);
1503
1504         /* Update our PATH to include /sbin  */
1505         if (oldpath) {
1506                 strcat (newpath, ":");
1507                 strcat (newpath, oldpath);
1508         }
1509         putenv (newpath);
1510
1511         tmp = getenv("MKE2FS_SYNC");
1512         if (tmp)
1513                 sync_kludge = atoi(tmp);
1514
1515         /* Determine the system page size if possible */
1516 #ifdef HAVE_SYSCONF
1517 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1518 #define _SC_PAGESIZE _SC_PAGE_SIZE
1519 #endif
1520 #ifdef _SC_PAGESIZE
1521         sysval = sysconf(_SC_PAGESIZE);
1522         if (sysval > 0)
1523                 sys_page_size = sysval;
1524 #endif /* _SC_PAGESIZE */
1525 #endif /* HAVE_SYSCONF */
1526
1527         if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1528                 config_fn[0] = tmp;
1529         profile_set_syntax_err_cb(syntax_err_report);
1530         retval = profile_init(config_fn, &profile);
1531         if (retval == ENOENT) {
1532                 retval = profile_init(default_files, &profile);
1533                 if (retval)
1534                         goto profile_error;
1535                 retval = profile_set_default(profile, mke2fs_default_profile);
1536                 if (retval)
1537                         goto profile_error;
1538         } else if (retval) {
1539 profile_error:
1540                 fprintf(stderr, _("Couldn't init profile successfully"
1541                                   " (error: %ld).\n"), retval);
1542                 exit(1);
1543         }
1544
1545         setbuf(stdout, NULL);
1546         setbuf(stderr, NULL);
1547         add_error_table(&et_ext2_error_table);
1548         add_error_table(&et_prof_error_table);
1549         memset(&fs_param, 0, sizeof(struct ext2_super_block));
1550         fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
1551
1552         if (is_before_linux_ver(2, 2, 0))
1553                 fs_param.s_rev_level = 0;
1554
1555         if (argc && *argv) {
1556                 program_name = get_progname(*argv);
1557
1558                 /* If called as mkfs.ext3, create a journal inode */
1559                 if (!strcmp(program_name, "mkfs.ext3") ||
1560                     !strcmp(program_name, "mke3fs"))
1561                         journal_size = -1;
1562         }
1563
1564         while ((c = getopt (argc, argv,
1565                     "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) {
1566                 switch (c) {
1567                 case 'b':
1568                         blocksize = parse_num_blocks2(optarg, -1);
1569                         b = (blocksize > 0) ? blocksize : -blocksize;
1570                         if (b < EXT2_MIN_BLOCK_SIZE ||
1571                             b > EXT2_MAX_BLOCK_SIZE) {
1572                                 com_err(program_name, 0,
1573                                         _("invalid block size - %s"), optarg);
1574                                 exit(1);
1575                         }
1576                         if (blocksize > 4096)
1577                                 fprintf(stderr, _("Warning: blocksize %d not "
1578                                                   "usable on most systems.\n"),
1579                                         blocksize);
1580                         if (blocksize > 0)
1581                                 fs_param.s_log_block_size =
1582                                         int_log2(blocksize >>
1583                                                  EXT2_MIN_BLOCK_LOG_SIZE);
1584                         break;
1585                 case 'c':       /* Check for bad blocks */
1586                         cflag++;
1587                         break;
1588                 case 'C':
1589                         cluster_size = parse_num_blocks2(optarg, -1);
1590                         if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1591                             cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1592                                 com_err(program_name, 0,
1593                                         _("invalid cluster size - %s"),
1594                                         optarg);
1595                                 exit(1);
1596                         }
1597                         break;
1598                 case 'd':
1599                         src_root_dir = optarg;
1600                         break;
1601                 case 'D':
1602                         direct_io = 1;
1603                         break;
1604                 case 'R':
1605                         com_err(program_name, 0, "%s",
1606                                 _("'-R' is deprecated, use '-E' instead"));
1607                         /* fallthrough */
1608                 case 'E':
1609                         extended_opts = optarg;
1610                         break;
1611                 case 'e':
1612                         if (strcmp(optarg, "continue") == 0)
1613                                 errors_behavior = EXT2_ERRORS_CONTINUE;
1614                         else if (strcmp(optarg, "remount-ro") == 0)
1615                                 errors_behavior = EXT2_ERRORS_RO;
1616                         else if (strcmp(optarg, "panic") == 0)
1617                                 errors_behavior = EXT2_ERRORS_PANIC;
1618                         else {
1619                                 com_err(program_name, 0,
1620                                         _("bad error behavior - %s"),
1621                                         optarg);
1622                                 usage();
1623                         }
1624                         break;
1625                 case 'F':
1626                         force++;
1627                         break;
1628                 case 'g':
1629                         fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1630                         if (*tmp) {
1631                                 com_err(program_name, 0, "%s",
1632                                 _("Illegal number for blocks per group"));
1633                                 exit(1);
1634                         }
1635                         if ((fs_param.s_blocks_per_group % 8) != 0) {
1636                                 com_err(program_name, 0, "%s",
1637                                 _("blocks per group must be multiple of 8"));
1638                                 exit(1);
1639                         }
1640                         break;
1641                 case 'G':
1642                         flex_bg_size = strtoul(optarg, &tmp, 0);
1643                         if (*tmp) {
1644                                 com_err(program_name, 0, "%s",
1645                                         _("Illegal number for flex_bg size"));
1646                                 exit(1);
1647                         }
1648                         if (flex_bg_size < 1 ||
1649                             (flex_bg_size & (flex_bg_size-1)) != 0) {
1650                                 com_err(program_name, 0, "%s",
1651                                         _("flex_bg size must be a power of 2"));
1652                                 exit(1);
1653                         }
1654                         if (flex_bg_size > MAX_32_NUM) {
1655                                 com_err(program_name, 0,
1656                                 _("flex_bg size (%lu) must be less than"
1657                                 " or equal to 2^31"), flex_bg_size);
1658                                 exit(1);
1659                         }
1660                         break;
1661                 case 'i':
1662                         inode_ratio = parse_num_blocks(optarg, -1);
1663                         if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1664                             inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1665                                 com_err(program_name, 0,
1666                                         _("invalid inode ratio %s (min %d/max %d)"),
1667                                         optarg, EXT2_MIN_BLOCK_SIZE,
1668                                         EXT2_MAX_BLOCK_SIZE * 1024);
1669                                 exit(1);
1670                         }
1671                         break;
1672                 case 'I':
1673                         inode_size = strtoul(optarg, &tmp, 0);
1674                         if (*tmp) {
1675                                 com_err(program_name, 0,
1676                                         _("invalid inode size - %s"), optarg);
1677                                 exit(1);
1678                         }
1679                         break;
1680                 case 'j':
1681                         if (!journal_size)
1682                                 journal_size = -1;
1683                         break;
1684                 case 'J':
1685                         parse_journal_opts(optarg);
1686                         break;
1687                 case 'K':
1688                         fprintf(stderr, "%s",
1689                                 _("Warning: -K option is deprecated and "
1690                                   "should not be used anymore. Use "
1691                                   "\'-E nodiscard\' extended option "
1692                                   "instead!\n"));
1693                         discard = 0;
1694                         break;
1695                 case 'l':
1696                         bad_blocks_filename = realloc(bad_blocks_filename,
1697                                                       strlen(optarg) + 1);
1698                         if (!bad_blocks_filename) {
1699                                 com_err(program_name, ENOMEM, "%s",
1700                                         _("in malloc for bad_blocks_filename"));
1701                                 exit(1);
1702                         }
1703                         strcpy(bad_blocks_filename, optarg);
1704                         break;
1705                 case 'L':
1706                         volume_label = optarg;
1707                         break;
1708                 case 'm':
1709                         reserved_ratio = strtod(optarg, &tmp);
1710                         if ( *tmp || reserved_ratio > 50 ||
1711                              reserved_ratio < 0) {
1712                                 com_err(program_name, 0,
1713                                         _("invalid reserved blocks percent - %s"),
1714                                         optarg);
1715                                 exit(1);
1716                         }
1717                         break;
1718                 case 'M':
1719                         mount_dir = optarg;
1720                         break;
1721                 case 'n':
1722                         noaction++;
1723                         break;
1724                 case 'N':
1725                         num_inodes = strtoul(optarg, &tmp, 0);
1726                         if (*tmp) {
1727                                 com_err(program_name, 0,
1728                                         _("bad num inodes - %s"), optarg);
1729                                         exit(1);
1730                         }
1731                         break;
1732                 case 'o':
1733                         creator_os = optarg;
1734                         break;
1735                 case 'O':
1736                         fs_features = optarg;
1737                         break;
1738                 case 'q':
1739                         quiet = 1;
1740                         break;
1741                 case 'r':
1742                         r_opt = strtoul(optarg, &tmp, 0);
1743                         if (*tmp) {
1744                                 com_err(program_name, 0,
1745                                         _("bad revision level - %s"), optarg);
1746                                 exit(1);
1747                         }
1748                         if (r_opt > EXT2_MAX_SUPP_REV) {
1749                                 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1750                                         _("while trying to create revision %d"), r_opt);
1751                                 exit(1);
1752                         }
1753                         fs_param.s_rev_level = r_opt;
1754                         break;
1755                 case 's':       /* deprecated */
1756                         s_opt = atoi(optarg);
1757                         break;
1758                 case 'S':
1759                         super_only = 1;
1760                         break;
1761                 case 't':
1762                         if (fs_type) {
1763                                 com_err(program_name, 0, "%s",
1764                                     _("The -t option may only be used once"));
1765                                 exit(1);
1766                         }
1767                         fs_type = strdup(optarg);
1768                         break;
1769                 case 'T':
1770                         if (usage_types) {
1771                                 com_err(program_name, 0, "%s",
1772                                     _("The -T option may only be used once"));
1773                                 exit(1);
1774                         }
1775                         usage_types = strdup(optarg);
1776                         break;
1777                 case 'U':
1778                         fs_uuid = optarg;
1779                         break;
1780                 case 'v':
1781                         verbose = 1;
1782                         break;
1783                 case 'V':
1784                         /* Print version number and exit */
1785                         show_version_only++;
1786                         break;
1787                 case 'z':
1788                         undo_file = optarg;
1789                         break;
1790                 default:
1791                         usage();
1792                 }
1793         }
1794         if ((optind == argc) && !show_version_only)
1795                 usage();
1796         device_name = argv[optind++];
1797
1798         if (!quiet || show_version_only)
1799                 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1800                          E2FSPROGS_DATE);
1801
1802         if (show_version_only) {
1803                 fprintf(stderr, _("\tUsing %s\n"),
1804                         error_message(EXT2_ET_BASE));
1805                 exit(0);
1806         }
1807
1808         /*
1809          * If there's no blocksize specified and there is a journal
1810          * device, use it to figure out the blocksize
1811          */
1812         if (blocksize <= 0 && journal_device) {
1813                 ext2_filsys     jfs;
1814                 io_manager      io_ptr;
1815
1816 #ifdef CONFIG_TESTIO_DEBUG
1817                 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1818                         io_ptr = test_io_manager;
1819                         test_io_backing_manager = unix_io_manager;
1820                 } else
1821 #endif
1822                         io_ptr = unix_io_manager;
1823                 retval = ext2fs_open(journal_device,
1824                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
1825                                      0, io_ptr, &jfs);
1826                 if (retval) {
1827                         com_err(program_name, retval,
1828                                 _("while trying to open journal device %s\n"),
1829                                 journal_device);
1830                         exit(1);
1831                 }
1832                 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1833                         com_err(program_name, 0,
1834                                 _("Journal dev blocksize (%d) smaller than "
1835                                   "minimum blocksize %d\n"), jfs->blocksize,
1836                                 -blocksize);
1837                         exit(1);
1838                 }
1839                 blocksize = jfs->blocksize;
1840                 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1841                 fs_param.s_log_block_size =
1842                         int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1843                 ext2fs_close_free(&jfs);
1844         }
1845
1846         if (optind < argc) {
1847                 fs_blocks_count = parse_num_blocks2(argv[optind++],
1848                                                    fs_param.s_log_block_size);
1849                 if (!fs_blocks_count) {
1850                         com_err(program_name, 0,
1851                                 _("invalid blocks '%s' on device '%s'"),
1852                                 argv[optind - 1], device_name);
1853                         exit(1);
1854                 }
1855         }
1856         if (optind < argc)
1857                 usage();
1858
1859         profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1860                             &proceed_delay);
1861
1862         /* The isatty() test is so we don't break existing scripts */
1863         flags = CREATE_FILE;
1864         if (isatty(0) && isatty(1))
1865                 flags |= CHECK_FS_EXIST;
1866         if (!quiet)
1867                 flags |= VERBOSE_CREATE;
1868         if (fs_blocks_count == 0)
1869                 flags |= NO_SIZE;
1870         if (!check_plausibility(device_name, flags, &is_device) && !force)
1871                 proceed_question(proceed_delay);
1872
1873         check_mount(device_name, force, _("filesystem"));
1874
1875         /* Determine the size of the device (if possible) */
1876         if (noaction && fs_blocks_count) {
1877                 dev_size = fs_blocks_count;
1878                 retval = 0;
1879         } else
1880                 retval = ext2fs_get_device_size2(device_name,
1881                                                  EXT2_BLOCK_SIZE(&fs_param),
1882                                                  &dev_size);
1883
1884         if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1885                 com_err(program_name, retval, "%s",
1886                         _("while trying to determine filesystem size"));
1887                 exit(1);
1888         }
1889         if (!fs_blocks_count) {
1890                 if (retval == EXT2_ET_UNIMPLEMENTED) {
1891                         com_err(program_name, 0, "%s",
1892                                 _("Couldn't determine device size; you "
1893                                 "must specify\nthe size of the "
1894                                 "filesystem\n"));
1895                         exit(1);
1896                 } else {
1897                         if (dev_size == 0) {
1898                                 com_err(program_name, 0, "%s",
1899                                 _("Device size reported to be zero.  "
1900                                   "Invalid partition specified, or\n\t"
1901                                   "partition table wasn't reread "
1902                                   "after running fdisk, due to\n\t"
1903                                   "a modified partition being busy "
1904                                   "and in use.  You may need to reboot\n\t"
1905                                   "to re-read your partition table.\n"
1906                                   ));
1907                                 exit(1);
1908                         }
1909                         fs_blocks_count = dev_size;
1910                         if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
1911                                 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
1912                                              EXT2_BLOCK_SIZE(&fs_param))-1));
1913                 }
1914         } else if (!force && is_device && (fs_blocks_count > dev_size)) {
1915                 com_err(program_name, 0, "%s",
1916                         _("Filesystem larger than apparent device size."));
1917                 proceed_question(proceed_delay);
1918         }
1919
1920         if (!fs_type)
1921                 profile_get_string(profile, "devices", device_name,
1922                                    "fs_type", 0, &fs_type);
1923         if (!usage_types)
1924                 profile_get_string(profile, "devices", device_name,
1925                                    "usage_types", 0, &usage_types);
1926
1927         /*
1928          * We have the file system (or device) size, so we can now
1929          * determine the appropriate file system types so the fs can
1930          * be appropriately configured.
1931          */
1932         fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
1933                                  fs_blocks_count ? fs_blocks_count : dev_size,
1934                                  argv[0]);
1935         if (!fs_types) {
1936                 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
1937                 exit(1);
1938         }
1939
1940         /* Figure out what features should be enabled */
1941
1942         tmp = NULL;
1943         if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
1944                 tmp = get_string_from_profile(fs_types, "base_features",
1945                       "sparse_super,large_file,filetype,resize_inode,dir_index");
1946                 edit_feature(tmp, &fs_param.s_feature_compat);
1947                 free(tmp);
1948
1949                 /* And which mount options as well */
1950                 tmp = get_string_from_profile(fs_types, "default_mntopts",
1951                                               "acl,user_xattr");
1952                 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
1953                 if (tmp)
1954                         free(tmp);
1955
1956                 for (cpp = fs_types; *cpp; cpp++) {
1957                         tmp = NULL;
1958                         profile_get_string(profile, "fs_types", *cpp,
1959                                            "features", "", &tmp);
1960                         if (tmp && *tmp)
1961                                 edit_feature(tmp, &fs_param.s_feature_compat);
1962                         if (tmp)
1963                                 free(tmp);
1964                 }
1965                 tmp = get_string_from_profile(fs_types, "default_features",
1966                                               "");
1967         }
1968         /* Mask off features which aren't supported by the Hurd */
1969         if (for_hurd(creator_os)) {
1970                 ext2fs_clear_feature_filetype(&fs_param);
1971                 ext2fs_clear_feature_huge_file(&fs_param);
1972                 ext2fs_clear_feature_metadata_csum(&fs_param);
1973         }
1974         edit_feature(fs_features ? fs_features : tmp,
1975                      &fs_param.s_feature_compat);
1976         if (tmp)
1977                 free(tmp);
1978         /*
1979          * If the user specified features incompatible with the Hurd, complain
1980          */
1981         if (for_hurd(creator_os)) {
1982                 if (ext2fs_has_feature_filetype(&fs_param)) {
1983                         fprintf(stderr, "%s", _("The HURD does not support the "
1984                                                 "filetype feature.\n"));
1985                         exit(1);
1986                 }
1987                 if (ext2fs_has_feature_huge_file(&fs_param)) {
1988                         fprintf(stderr, "%s", _("The HURD does not support the "
1989                                                 "huge_file feature.\n"));
1990                         exit(1);
1991                 }
1992                 if (ext2fs_has_feature_metadata_csum(&fs_param)) {
1993                         fprintf(stderr, "%s", _("The HURD does not support the "
1994                                                 "metadata_csum feature.\n"));
1995                         exit(1);
1996                 }
1997         }
1998
1999         /* Get the hardware sector sizes, if available */
2000         retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2001         if (retval) {
2002                 com_err(program_name, retval, "%s",
2003                         _("while trying to determine hardware sector size"));
2004                 exit(1);
2005         }
2006         retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2007         if (retval) {
2008                 com_err(program_name, retval, "%s",
2009                         _("while trying to determine physical sector size"));
2010                 exit(1);
2011         }
2012
2013         tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2014         if (tmp != NULL)
2015                 lsector_size = atoi(tmp);
2016         tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2017         if (tmp != NULL)
2018                 psector_size = atoi(tmp);
2019
2020         /* Older kernels may not have physical/logical distinction */
2021         if (!psector_size)
2022                 psector_size = lsector_size;
2023
2024         if (blocksize <= 0) {
2025                 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2026
2027                 if (use_bsize == -1) {
2028                         use_bsize = sys_page_size;
2029                         if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2030                                 use_bsize = 4096;
2031                 }
2032                 if (lsector_size && use_bsize < lsector_size)
2033                         use_bsize = lsector_size;
2034                 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2035                         use_bsize = -blocksize;
2036                 blocksize = use_bsize;
2037                 fs_blocks_count /= (blocksize / 1024);
2038         } else {
2039                 if (blocksize < lsector_size) {                 /* Impossible */
2040                         com_err(program_name, EINVAL, "%s",
2041                                 _("while setting blocksize; too small "
2042                                   "for device\n"));
2043                         exit(1);
2044                 } else if ((blocksize < psector_size) &&
2045                            (psector_size <= sys_page_size)) {   /* Suboptimal */
2046                         fprintf(stderr, _("Warning: specified blocksize %d is "
2047                                 "less than device physical sectorsize %d\n"),
2048                                 blocksize, psector_size);
2049                 }
2050         }
2051
2052         fs_param.s_log_block_size =
2053                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2054
2055         /*
2056          * We now need to do a sanity check of fs_blocks_count for
2057          * 32-bit vs 64-bit block number support.
2058          */
2059         if ((fs_blocks_count > MAX_32_NUM) &&
2060             ext2fs_has_feature_64bit(&fs_param))
2061                 ext2fs_clear_feature_resize_inode(&fs_param);
2062         if ((fs_blocks_count > MAX_32_NUM) &&
2063             !ext2fs_has_feature_64bit(&fs_param) &&
2064             get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2065                 ext2fs_set_feature_64bit(&fs_param);
2066                 ext2fs_clear_feature_resize_inode(&fs_param);
2067         }
2068         if ((fs_blocks_count > MAX_32_NUM) &&
2069             !ext2fs_has_feature_64bit(&fs_param)) {
2070                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2071                                   "too big to be expressed\n\t"
2072                                   "in 32 bits using a blocksize of %d.\n"),
2073                         program_name, fs_blocks_count, device_name,
2074                         EXT2_BLOCK_SIZE(&fs_param));
2075                 exit(1);
2076         }
2077
2078         ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2079
2080         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2081                 fs_types[0] = strdup("journal");
2082                 fs_types[1] = 0;
2083         }
2084
2085         if (verbose) {
2086                 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2087                 print_str_list(fs_types);
2088         }
2089
2090         if (r_opt == EXT2_GOOD_OLD_REV &&
2091             (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2092              fs_param.s_feature_ro_compat)) {
2093                 fprintf(stderr, "%s", _("Filesystem features not supported "
2094                                         "with revision 0 filesystems\n"));
2095                 exit(1);
2096         }
2097
2098         if (s_opt > 0) {
2099                 if (r_opt == EXT2_GOOD_OLD_REV) {
2100                         fprintf(stderr, "%s",
2101                                 _("Sparse superblocks not supported "
2102                                   "with revision 0 filesystems\n"));
2103                         exit(1);
2104                 }
2105                 ext2fs_set_feature_sparse_super(&fs_param);
2106         } else if (s_opt == 0)
2107                 ext2fs_clear_feature_sparse_super(&fs_param);
2108
2109         if (journal_size != 0) {
2110                 if (r_opt == EXT2_GOOD_OLD_REV) {
2111                         fprintf(stderr, "%s", _("Journals not supported with "
2112                                                 "revision 0 filesystems\n"));
2113                         exit(1);
2114                 }
2115                 ext2fs_set_feature_journal(&fs_param);
2116         }
2117
2118         /* Get reserved_ratio from profile if not specified on cmd line. */
2119         if (reserved_ratio < 0.0) {
2120                 reserved_ratio = get_double_from_profile(
2121                                         fs_types, "reserved_ratio", 5.0);
2122                 if (reserved_ratio > 50 || reserved_ratio < 0) {
2123                         com_err(program_name, 0,
2124                                 _("invalid reserved blocks percent - %lf"),
2125                                 reserved_ratio);
2126                         exit(1);
2127                 }
2128         }
2129
2130         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2131                 reserved_ratio = 0;
2132                 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2133                 fs_param.s_feature_compat = 0;
2134                 fs_param.s_feature_ro_compat &=
2135                                         EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2136         }
2137
2138         /* Check the user's mkfs options for 64bit */
2139         if (ext2fs_has_feature_64bit(&fs_param) &&
2140             !ext2fs_has_feature_extents(&fs_param)) {
2141                 printf("%s", _("Extents MUST be enabled for a 64-bit "
2142                                "filesystem.  Pass -O extents to rectify.\n"));
2143                 exit(1);
2144         }
2145
2146         /* Set first meta blockgroup via an environment variable */
2147         /* (this is mostly for debugging purposes) */
2148         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2149             (tmp = getenv("MKE2FS_FIRST_META_BG")))
2150                 fs_param.s_first_meta_bg = atoi(tmp);
2151         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2152                 if (!cluster_size)
2153                         cluster_size = get_int_from_profile(fs_types,
2154                                                             "cluster_size",
2155                                                             blocksize*16);
2156                 fs_param.s_log_cluster_size =
2157                         int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2158                 if (fs_param.s_log_cluster_size &&
2159                     fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2160                         com_err(program_name, 0, "%s",
2161                                 _("The cluster size may not be "
2162                                   "smaller than the block size.\n"));
2163                         exit(1);
2164                 }
2165         } else if (cluster_size) {
2166                 com_err(program_name, 0, "%s",
2167                         _("specifying a cluster size requires the "
2168                           "bigalloc feature"));
2169                 exit(1);
2170         } else
2171                 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2172
2173         if (inode_ratio == 0) {
2174                 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2175                                                    8192);
2176                 if (inode_ratio < blocksize)
2177                         inode_ratio = blocksize;
2178                 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2179                         inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2180         }
2181
2182 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2183         retval = get_device_geometry(device_name, &fs_param,
2184                                      (unsigned int) psector_size);
2185         if (retval < 0) {
2186                 fprintf(stderr,
2187                         _("warning: Unable to get device geometry for %s\n"),
2188                         device_name);
2189         } else if (retval) {
2190                 printf(_("%s alignment is offset by %lu bytes.\n"),
2191                        device_name, retval);
2192                 printf(_("This may result in very poor performance, "
2193                           "(re)-partitioning suggested.\n"));
2194         }
2195 #endif
2196
2197         num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2198
2199         blocksize = EXT2_BLOCK_SIZE(&fs_param);
2200
2201         /*
2202          * Initialize s_desc_size so that the parse_extended_opts()
2203          * can correctly handle "-E resize=NNN" if the 64-bit option
2204          * is set.
2205          */
2206         if (ext2fs_has_feature_64bit(&fs_param))
2207                 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2208
2209         /* This check should happen beyond the last assignment to blocksize */
2210         if (blocksize > sys_page_size) {
2211                 if (!force) {
2212                         com_err(program_name, 0,
2213                                 _("%d-byte blocks too big for system (max %d)"),
2214                                 blocksize, sys_page_size);
2215                         proceed_question(proceed_delay);
2216                 }
2217                 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2218                                   "(max %d), forced to continue\n"),
2219                         blocksize, sys_page_size);
2220         }
2221
2222         /* Metadata checksumming wasn't totally stable before 3.18. */
2223         if (is_before_linux_ver(3, 18, 0) &&
2224             ext2fs_has_feature_metadata_csum(&fs_param))
2225                 fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2226                         "improved stability of the metadata and journal "
2227                         "checksum features.\n"));
2228
2229         /*
2230          * On newer kernels we do have lazy_itable_init support. So pick the
2231          * right default in case ext4 module is not loaded.
2232          */
2233         if (is_before_linux_ver(2, 6, 37))
2234                 lazy_itable_init = 0;
2235         else
2236                 lazy_itable_init = 1;
2237
2238         if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2239                 lazy_itable_init = 1;
2240
2241         lazy_itable_init = get_bool_from_profile(fs_types,
2242                                                  "lazy_itable_init",
2243                                                  lazy_itable_init);
2244         discard = get_bool_from_profile(fs_types, "discard" , discard);
2245         journal_flags |= get_bool_from_profile(fs_types,
2246                                                "lazy_journal_init", 0) ?
2247                                                EXT2_MKJOURNAL_LAZYINIT : 0;
2248         journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2249
2250         if (!journal_location_string)
2251                 journal_location_string = get_string_from_profile(fs_types,
2252                                                 "journal_location", "");
2253         if ((journal_location == ~0ULL) && journal_location_string &&
2254             *journal_location_string)
2255                 journal_location = parse_num_blocks2(journal_location_string,
2256                                                 fs_param.s_log_block_size);
2257         free(journal_location_string);
2258
2259         packed_meta_blocks = get_bool_from_profile(fs_types,
2260                                                    "packed_meta_blocks", 0);
2261         if (packed_meta_blocks)
2262                 journal_location = 0;
2263
2264         /* Get options from profile */
2265         for (cpp = fs_types; *cpp; cpp++) {
2266                 tmp = NULL;
2267                 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2268                         if (tmp && *tmp)
2269                                 parse_extended_opts(&fs_param, tmp);
2270                         free(tmp);
2271         }
2272
2273         if (extended_opts)
2274                 parse_extended_opts(&fs_param, extended_opts);
2275
2276         /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2277         if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2278             ext2fs_has_feature_gdt_csum(&fs_param))
2279                 ext2fs_clear_feature_gdt_csum(&fs_param);
2280
2281         /* Can't support bigalloc feature without extents feature */
2282         if (ext2fs_has_feature_bigalloc(&fs_param) &&
2283             !ext2fs_has_feature_extents(&fs_param)) {
2284                 com_err(program_name, 0, "%s",
2285                         _("Can't support bigalloc feature without "
2286                           "extents feature"));
2287                 exit(1);
2288         }
2289
2290         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2291             ext2fs_has_feature_resize_inode(&fs_param)) {
2292                 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2293                                         "features are not compatible.\n"
2294                                         "They can not be both enabled "
2295                                         "simultaneously.\n"));
2296                 exit(1);
2297         }
2298
2299         if (!quiet && ext2fs_has_feature_bigalloc(&fs_param))
2300                 fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
2301                                   "still under development\n"
2302                                   "See https://ext4.wiki.kernel.org/"
2303                                   "index.php/Bigalloc for more information\n\n"));
2304
2305         /*
2306          * Since sparse_super is the default, we would only have a problem
2307          * here if it was explicitly disabled.
2308          */
2309         if (ext2fs_has_feature_resize_inode(&fs_param) &&
2310             !ext2fs_has_feature_sparse_super(&fs_param)) {
2311                 com_err(program_name, 0, "%s",
2312                         _("reserved online resize blocks not supported "
2313                           "on non-sparse filesystem"));
2314                 exit(1);
2315         }
2316
2317         if (fs_param.s_blocks_per_group) {
2318                 if (fs_param.s_blocks_per_group < 256 ||
2319                     fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2320                         com_err(program_name, 0, "%s",
2321                                 _("blocks per group count out of range"));
2322                         exit(1);
2323                 }
2324         }
2325
2326         /*
2327          * If the bigalloc feature is enabled, then the -g option will
2328          * specify the number of clusters per group.
2329          */
2330         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2331                 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2332                 fs_param.s_blocks_per_group = 0;
2333         }
2334
2335         if (inode_size == 0)
2336                 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2337         if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2338                 flex_bg_size = get_uint_from_profile(fs_types,
2339                                                      "flex_bg_size", 16);
2340         if (flex_bg_size) {
2341                 if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2342                         com_err(program_name, 0, "%s",
2343                                 _("Flex_bg feature not enabled, so "
2344                                   "flex_bg size may not be specified"));
2345                         exit(1);
2346                 }
2347                 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2348         }
2349
2350         if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2351                 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2352                     inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2353                     inode_size & (inode_size - 1)) {
2354                         com_err(program_name, 0,
2355                                 _("invalid inode size %d (min %d/max %d)"),
2356                                 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2357                                 blocksize);
2358                         exit(1);
2359                 }
2360                 fs_param.s_inode_size = inode_size;
2361         }
2362
2363         /*
2364          * If inode size is 128 and inline data is enabled, we need
2365          * to notify users that inline data will never be useful.
2366          */
2367         if (ext2fs_has_feature_inline_data(&fs_param) &&
2368             fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2369                 com_err(program_name, 0,
2370                         _("%d byte inodes are too small for inline data; "
2371                           "specify larger size"),
2372                         fs_param.s_inode_size);
2373                 exit(1);
2374         }
2375
2376         /*
2377          * If inode size is 128 and project quota is enabled, we need
2378          * to notify users that project ID will never be useful.
2379          */
2380         if (ext2fs_has_feature_project(&fs_param) &&
2381             fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2382                 com_err(program_name, 0,
2383                         _("%d byte inodes are too small for project quota; "
2384                           "specify larger size"),
2385                         fs_param.s_inode_size);
2386                 exit(1);
2387         }
2388
2389         /* Make sure number of inodes specified will fit in 32 bits */
2390         if (num_inodes == 0) {
2391                 unsigned long long n;
2392                 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2393                 if (n > MAX_32_NUM) {
2394                         if (ext2fs_has_feature_64bit(&fs_param))
2395                                 num_inodes = MAX_32_NUM;
2396                         else {
2397                                 com_err(program_name, 0,
2398                                         _("too many inodes (%llu), raise "
2399                                           "inode ratio?"), n);
2400                                 exit(1);
2401                         }
2402                 }
2403         } else if (num_inodes > MAX_32_NUM) {
2404                 com_err(program_name, 0,
2405                         _("too many inodes (%llu), specify < 2^32 inodes"),
2406                           num_inodes);
2407                 exit(1);
2408         }
2409         /*
2410          * Calculate number of inodes based on the inode ratio
2411          */
2412         fs_param.s_inodes_count = num_inodes ? num_inodes :
2413                 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2414
2415         if ((((unsigned long long)fs_param.s_inodes_count) *
2416              (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2417             ((ext2fs_blocks_count(&fs_param)) *
2418              EXT2_BLOCK_SIZE(&fs_param))) {
2419                 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2420                                           "(%u) too big for a\n\t"
2421                                           "filesystem with %llu blocks, "
2422                                           "specify higher inode_ratio (-i)\n\t"
2423                                           "or lower inode count (-N).\n"),
2424                         inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2425                         fs_param.s_inodes_count,
2426                         (unsigned long long) ext2fs_blocks_count(&fs_param));
2427                 exit(1);
2428         }
2429
2430         /*
2431          * Calculate number of blocks to reserve
2432          */
2433         ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2434                                   ext2fs_blocks_count(&fs_param) / 100.0);
2435
2436         if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2437                 if (num_backups >= 1)
2438                         fs_param.s_backup_bgs[0] = 1;
2439                 if (num_backups >= 2)
2440                         fs_param.s_backup_bgs[1] = ~0;
2441         }
2442
2443         free(fs_type);
2444         free(usage_types);
2445 }
2446
2447 static int should_do_undo(const char *name)
2448 {
2449         errcode_t retval;
2450         io_channel channel;
2451         __u16   s_magic;
2452         struct ext2_super_block super;
2453         io_manager manager = unix_io_manager;
2454         int csum_flag, force_undo;
2455
2456         csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2457                     ext2fs_has_feature_gdt_csum(&fs_param);
2458         force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2459         if (!force_undo && (!csum_flag || !lazy_itable_init))
2460                 return 0;
2461
2462         retval = manager->open(name, IO_FLAG_EXCLUSIVE,  &channel);
2463         if (retval) {
2464                 /*
2465                  * We don't handle error cases instead we
2466                  * declare that the file system doesn't exist
2467                  * and let the rest of mke2fs take care of
2468                  * error
2469                  */
2470                 retval = 0;
2471                 goto open_err_out;
2472         }
2473
2474         io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2475         retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2476         if (retval) {
2477                 retval = 0;
2478                 goto err_out;
2479         }
2480
2481 #if defined(WORDS_BIGENDIAN)
2482         s_magic = ext2fs_swab16(super.s_magic);
2483 #else
2484         s_magic = super.s_magic;
2485 #endif
2486
2487         if (s_magic == EXT2_SUPER_MAGIC)
2488                 retval = 1;
2489
2490 err_out:
2491         io_channel_close(channel);
2492
2493 open_err_out:
2494
2495         return retval;
2496 }
2497
2498 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2499 {
2500         errcode_t retval = ENOMEM;
2501         char *tdb_dir = NULL, *tdb_file = NULL;
2502         char *dev_name, *tmp_name;
2503         int free_tdb_dir = 0;
2504
2505         /* (re)open a specific undo file */
2506         if (undo_file && undo_file[0] != 0) {
2507                 retval = set_undo_io_backing_manager(*io_ptr);
2508                 if (retval)
2509                         goto err;
2510                 *io_ptr = undo_io_manager;
2511                 retval = set_undo_io_backup_file(undo_file);
2512                 if (retval)
2513                         goto err;
2514                 printf(_("Overwriting existing filesystem; this can be undone "
2515                          "using the command:\n"
2516                          "    e2undo %s %s\n\n"), undo_file, name);
2517                 return retval;
2518         }
2519
2520         /*
2521          * Configuration via a conf file would be
2522          * nice
2523          */
2524         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2525         if (!tdb_dir) {
2526                 profile_get_string(profile, "defaults",
2527                                    "undo_dir", 0, "/var/lib/e2fsprogs",
2528                                    &tdb_dir);
2529                 free_tdb_dir = 1;
2530         }
2531
2532         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2533             access(tdb_dir, W_OK)) {
2534                 if (free_tdb_dir)
2535                         free(tdb_dir);
2536                 return 0;
2537         }
2538
2539         tmp_name = strdup(name);
2540         if (!tmp_name)
2541                 goto errout;
2542         dev_name = basename(tmp_name);
2543         tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2544         if (!tdb_file) {
2545                 free(tmp_name);
2546                 goto errout;
2547         }
2548         sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2549         free(tmp_name);
2550
2551         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2552                 retval = errno;
2553                 com_err(program_name, retval,
2554                         _("while trying to delete %s"), tdb_file);
2555                 goto errout;
2556         }
2557
2558         retval = set_undo_io_backing_manager(*io_ptr);
2559         if (retval)
2560                 goto errout;
2561         *io_ptr = undo_io_manager;
2562         retval = set_undo_io_backup_file(tdb_file);
2563         if (retval)
2564                 goto errout;
2565         printf(_("Overwriting existing filesystem; this can be undone "
2566                  "using the command:\n"
2567                  "    e2undo %s %s\n\n"), tdb_file, name);
2568
2569         if (free_tdb_dir)
2570                 free(tdb_dir);
2571         free(tdb_file);
2572         return 0;
2573
2574 errout:
2575         if (free_tdb_dir)
2576                 free(tdb_dir);
2577         free(tdb_file);
2578 err:
2579         com_err(program_name, retval, "%s",
2580                 _("while trying to setup undo file\n"));
2581         return retval;
2582 }
2583
2584 static int mke2fs_discard_device(ext2_filsys fs)
2585 {
2586         struct ext2fs_numeric_progress_struct progress;
2587         blk64_t blocks = ext2fs_blocks_count(fs->super);
2588         blk64_t count = DISCARD_STEP_MB;
2589         blk64_t cur;
2590         int retval = 0;
2591
2592         /*
2593          * Let's try if discard really works on the device, so
2594          * we do not print numeric progress resulting in failure
2595          * afterwards.
2596          */
2597         retval = io_channel_discard(fs->io, 0, fs->blocksize);
2598         if (retval)
2599                 return retval;
2600         cur = fs->blocksize;
2601
2602         count *= (1024 * 1024);
2603         count /= fs->blocksize;
2604
2605         ext2fs_numeric_progress_init(fs, &progress,
2606                                      _("Discarding device blocks: "),
2607                                      blocks);
2608         while (cur < blocks) {
2609                 ext2fs_numeric_progress_update(fs, &progress, cur);
2610
2611                 if (cur + count > blocks)
2612                         count = blocks - cur;
2613
2614                 retval = io_channel_discard(fs->io, cur, count);
2615                 if (retval)
2616                         break;
2617                 cur += count;
2618         }
2619
2620         if (retval) {
2621                 ext2fs_numeric_progress_close(fs, &progress,
2622                                       _("failed - "));
2623                 if (!quiet)
2624                         printf("%s\n",error_message(retval));
2625         } else
2626                 ext2fs_numeric_progress_close(fs, &progress,
2627                                       _("done                            \n"));
2628
2629         return retval;
2630 }
2631
2632 static void fix_cluster_bg_counts(ext2_filsys fs)
2633 {
2634         blk64_t         block, num_blocks, last_block, next;
2635         blk64_t         tot_free = 0;
2636         errcode_t       retval;
2637         dgrp_t          group = 0;
2638         int             grp_free = 0;
2639
2640         num_blocks = ext2fs_blocks_count(fs->super);
2641         last_block = ext2fs_group_last_block2(fs, group);
2642         block = fs->super->s_first_data_block;
2643         while (block < num_blocks) {
2644                 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2645                                                 block, last_block, &next);
2646                 if (retval == 0)
2647                         block = next;
2648                 else {
2649                         block = last_block + 1;
2650                         goto next_bg;
2651                 }
2652
2653                 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2654                                                 block, last_block, &next);
2655                 if (retval)
2656                         next = last_block + 1;
2657                 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2658                 tot_free += next - block;
2659                 block = next;
2660
2661                 if (block > last_block) {
2662                 next_bg:
2663                         ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2664                         ext2fs_group_desc_csum_set(fs, group);
2665                         grp_free = 0;
2666                         group++;
2667                         last_block = ext2fs_group_last_block2(fs, group);
2668                 }
2669         }
2670         ext2fs_free_blocks_count_set(fs->super, tot_free);
2671 }
2672
2673 static int create_quota_inodes(ext2_filsys fs)
2674 {
2675         quota_ctx_t qctx;
2676
2677         quota_init_context(&qctx, fs, QUOTA_ALL_BIT);
2678         quota_compute_usage(qctx);
2679         quota_write_inode(qctx, quotatype_bits);
2680         quota_release_context(&qctx);
2681
2682         return 0;
2683 }
2684
2685 static errcode_t set_error_behavior(ext2_filsys fs)
2686 {
2687         char    *arg = NULL;
2688         short   errors = fs->super->s_errors;
2689
2690         arg = get_string_from_profile(fs_types, "errors", NULL);
2691         if (arg == NULL)
2692                 goto try_user;
2693
2694         if (strcmp(arg, "continue") == 0)
2695                 errors = EXT2_ERRORS_CONTINUE;
2696         else if (strcmp(arg, "remount-ro") == 0)
2697                 errors = EXT2_ERRORS_RO;
2698         else if (strcmp(arg, "panic") == 0)
2699                 errors = EXT2_ERRORS_PANIC;
2700         else {
2701                 com_err(program_name, 0,
2702                         _("bad error behavior in profile - %s"),
2703                         arg);
2704                 free(arg);
2705                 return EXT2_ET_INVALID_ARGUMENT;
2706         }
2707         free(arg);
2708
2709 try_user:
2710         if (errors_behavior)
2711                 errors = errors_behavior;
2712
2713         fs->super->s_errors = errors;
2714         return 0;
2715 }
2716
2717 int main (int argc, char *argv[])
2718 {
2719         errcode_t       retval = 0;
2720         ext2_filsys     fs;
2721         badblocks_list  bb_list = 0;
2722         unsigned int    journal_blocks = 0;
2723         unsigned int    i, checkinterval;
2724         int             max_mnt_count;
2725         int             val, hash_alg;
2726         int             flags;
2727         int             old_bitmaps;
2728         io_manager      io_ptr;
2729         char            opt_string[40];
2730         char            *hash_alg_str;
2731         int             itable_zeroed = 0;
2732
2733 #ifdef ENABLE_NLS
2734         setlocale(LC_MESSAGES, "");
2735         setlocale(LC_CTYPE, "");
2736         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2737         textdomain(NLS_CAT_NAME);
2738         set_com_err_gettext(gettext);
2739 #endif
2740         PRS(argc, argv);
2741
2742 #ifdef CONFIG_TESTIO_DEBUG
2743         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2744                 io_ptr = test_io_manager;
2745                 test_io_backing_manager = unix_io_manager;
2746         } else
2747 #endif
2748                 io_ptr = unix_io_manager;
2749
2750         if (undo_file != NULL || should_do_undo(device_name)) {
2751                 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2752                 if (retval)
2753                         exit(1);
2754         }
2755
2756         /*
2757          * Initialize the superblock....
2758          */
2759         flags = EXT2_FLAG_EXCLUSIVE;
2760         if (direct_io)
2761                 flags |= EXT2_FLAG_DIRECT_IO;
2762         profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
2763                             &old_bitmaps);
2764         if (!old_bitmaps)
2765                 flags |= EXT2_FLAG_64BITS;
2766         /*
2767          * By default, we print how many inode tables or block groups
2768          * or whatever we've written so far.  The quiet flag disables
2769          * this, along with a lot of other output.
2770          */
2771         if (!quiet)
2772                 flags |= EXT2_FLAG_PRINT_PROGRESS;
2773         retval = ext2fs_initialize(device_name, flags, &fs_param, io_ptr, &fs);
2774         if (retval) {
2775                 com_err(device_name, retval, "%s",
2776                         _("while setting up superblock"));
2777                 exit(1);
2778         }
2779         fs->progress_ops = &ext2fs_numeric_progress_ops;
2780
2781         /* Set the error behavior */
2782         retval = set_error_behavior(fs);
2783         if (retval)
2784                 usage();
2785
2786         /* Check the user's mkfs options for metadata checksumming */
2787         if (!quiet &&
2788             !ext2fs_has_feature_journal_dev(fs->super) &&
2789             ext2fs_has_feature_metadata_csum(fs->super)) {
2790                 if (!ext2fs_has_feature_extents(fs->super))
2791                         printf("%s",
2792                                _("Extents are not enabled.  The file extent "
2793                                  "tree can be checksummed, whereas block maps "
2794                                  "cannot.  Not enabling extents reduces the "
2795                                  "coverage of metadata checksumming.  "
2796                                  "Pass -O extents to rectify.\n"));
2797                 if (!ext2fs_has_feature_64bit(fs->super))
2798                         printf("%s",
2799                                _("64-bit filesystem support is not enabled.  "
2800                                  "The larger fields afforded by this feature "
2801                                  "enable full-strength checksumming.  "
2802                                  "Pass -O 64bit to rectify.\n"));
2803         }
2804
2805         /* Calculate journal blocks */
2806         if (!journal_device && ((journal_size) ||
2807             ext2fs_has_feature_journal(&fs_param)))
2808                 journal_blocks = figure_journal_size(journal_size, fs);
2809
2810         /* Can't undo discard ... */
2811         if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
2812                 retval = mke2fs_discard_device(fs);
2813                 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
2814                         if (verbose)
2815                                 printf("%s",
2816                                        _("Discard succeeded and will return "
2817                                          "0s - skipping inode table wipe\n"));
2818                         lazy_itable_init = 1;
2819                         itable_zeroed = 1;
2820                         zero_hugefile = 0;
2821                 }
2822         }
2823
2824         sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
2825                 32768 : fs->blocksize * 8);
2826         io_channel_set_options(fs->io, opt_string);
2827         if (offset) {
2828                 sprintf(opt_string, "offset=%llu", offset);
2829                 io_channel_set_options(fs->io, opt_string);
2830         }
2831
2832         if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
2833                 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
2834
2835         if (ext2fs_has_feature_flex_bg(&fs_param) ||
2836             ext2fs_has_feature_huge_file(&fs_param) ||
2837             ext2fs_has_feature_gdt_csum(&fs_param) ||
2838             ext2fs_has_feature_dir_nlink(&fs_param) ||
2839             ext2fs_has_feature_metadata_csum(&fs_param) ||
2840             ext2fs_has_feature_extra_isize(&fs_param))
2841                 fs->super->s_kbytes_written = 1;
2842
2843         /*
2844          * Wipe out the old on-disk superblock
2845          */
2846         if (!noaction)
2847                 zap_sector(fs, 2, 6);
2848
2849         /*
2850          * Parse or generate a UUID for the filesystem
2851          */
2852         if (fs_uuid) {
2853                 if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) {
2854                         com_err(device_name, 0, "could not parse UUID: %s\n",
2855                                 fs_uuid);
2856                         exit(1);
2857                 }
2858         } else
2859                 uuid_generate(fs->super->s_uuid);
2860         ext2fs_init_csum_seed(fs);
2861
2862         /*
2863          * Initialize the directory index variables
2864          */
2865         hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
2866                                                "half_md4");
2867         hash_alg = e2p_string2hash(hash_alg_str);
2868         free(hash_alg_str);
2869         fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
2870                 EXT2_HASH_HALF_MD4;
2871         uuid_generate((unsigned char *) fs->super->s_hash_seed);
2872
2873         /*
2874          * Periodic checks can be enabled/disabled via config file.
2875          * Note we override the kernel include file's idea of what the default
2876          * check interval (never) should be.  It's a good idea to check at
2877          * least *occasionally*, specially since servers will never rarely get
2878          * to reboot, since Linux is so robust these days.  :-)
2879          *
2880          * 180 days (six months) seems like a good value.
2881          */
2882 #ifdef EXT2_DFL_CHECKINTERVAL
2883 #undef EXT2_DFL_CHECKINTERVAL
2884 #endif
2885 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
2886
2887         if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
2888                 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
2889                 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
2890                 /*
2891                  * Add "jitter" to the superblock's check interval so that we
2892                  * don't check all the filesystems at the same time.  We use a
2893                  * kludgy hack of using the UUID to derive a random jitter value
2894                  */
2895                 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
2896                         val += fs->super->s_uuid[i];
2897                 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
2898         } else
2899                 fs->super->s_max_mnt_count = -1;
2900
2901         /*
2902          * Override the creator OS, if applicable
2903          */
2904         if (creator_os && !set_os(fs->super, creator_os)) {
2905                 com_err (program_name, 0, _("unknown os - %s"), creator_os);
2906                 exit(1);
2907         }
2908
2909         /*
2910          * For the Hurd, we will turn off filetype since it doesn't
2911          * support it.
2912          */
2913         if (fs->super->s_creator_os == EXT2_OS_HURD)
2914                 ext2fs_clear_feature_filetype(fs->super);
2915
2916         /*
2917          * Set the volume label...
2918          */
2919         if (volume_label) {
2920                 memset(fs->super->s_volume_name, 0,
2921                        sizeof(fs->super->s_volume_name));
2922                 strncpy(fs->super->s_volume_name, volume_label,
2923                         sizeof(fs->super->s_volume_name));
2924         }
2925
2926         /*
2927          * Set the last mount directory
2928          */
2929         if (mount_dir) {
2930                 memset(fs->super->s_last_mounted, 0,
2931                        sizeof(fs->super->s_last_mounted));
2932                 strncpy(fs->super->s_last_mounted, mount_dir,
2933                         sizeof(fs->super->s_last_mounted));
2934         }
2935
2936         /* Set current default encryption algorithms for data and
2937          * filename encryption */
2938         if (ext2fs_has_feature_encrypt(fs->super)) {
2939                 fs->super->s_encrypt_algos[0] =
2940                         EXT4_ENCRYPTION_MODE_AES_256_XTS;
2941                 fs->super->s_encrypt_algos[1] =
2942                         EXT4_ENCRYPTION_MODE_AES_256_CTS;
2943         }
2944
2945         if (ext2fs_has_feature_metadata_csum(fs->super))
2946                 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
2947
2948         if (!quiet || noaction)
2949                 show_stats(fs);
2950
2951         if (noaction)
2952                 exit(0);
2953
2954         if (ext2fs_has_feature_journal_dev(fs->super)) {
2955                 create_journal_dev(fs);
2956                 printf("\n");
2957                 exit(ext2fs_close_free(&fs) ? 1 : 0);
2958         }
2959
2960         if (bad_blocks_filename)
2961                 read_bb_file(fs, &bb_list, bad_blocks_filename);
2962         if (cflag)
2963                 test_disk(fs, &bb_list);
2964         handle_bad_blocks(fs, bb_list);
2965
2966         fs->stride = fs_stride = fs->super->s_raid_stride;
2967         if (!quiet)
2968                 printf("%s", _("Allocating group tables: "));
2969         if (ext2fs_has_feature_flex_bg(fs->super) &&
2970             packed_meta_blocks)
2971                 retval = packed_allocate_tables(fs);
2972         else
2973                 retval = ext2fs_allocate_tables(fs);
2974         if (retval) {
2975                 com_err(program_name, retval, "%s",
2976                         _("while trying to allocate filesystem tables"));
2977                 exit(1);
2978         }
2979         if (!quiet)
2980                 printf("%s", _("done                            \n"));
2981
2982         retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
2983         if (retval) {
2984                 com_err(program_name, retval, "%s",
2985                         _("\n\twhile converting subcluster bitmap"));
2986                 exit(1);
2987         }
2988
2989         if (super_only) {
2990                 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
2991                 printf(_("%s may be further corrupted by superblock rewrite\n"),
2992                        device_name);
2993                 if (!force)
2994                         proceed_question(proceed_delay);
2995                 fs->super->s_state |= EXT2_ERROR_FS;
2996                 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
2997                 /*
2998                  * The command "mke2fs -S" is used to recover
2999                  * corrupted file systems, so do not mark any of the
3000                  * inodes as unused; we want e2fsck to consider all
3001                  * inodes as potentially containing recoverable data.
3002                  */
3003                 if (ext2fs_has_group_desc_csum(fs)) {
3004                         for (i = 0; i < fs->group_desc_count; i++)
3005                                 ext2fs_bg_itable_unused_set(fs, i, 0);
3006                 }
3007         } else {
3008                 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
3009                 blk64_t rsv = 65536 / fs->blocksize;
3010                 blk64_t blocks = ext2fs_blocks_count(fs->super);
3011                 blk64_t start;
3012                 blk64_t ret_blk;
3013
3014 #ifdef ZAP_BOOTBLOCK
3015                 zap_sector(fs, 0, 2);
3016 #endif
3017
3018                 /*
3019                  * Wipe out any old MD RAID (or other) metadata at the end
3020                  * of the device.  This will also verify that the device is
3021                  * as large as we think.  Be careful with very small devices.
3022                  */
3023                 start = (blocks & ~(rsv - 1));
3024                 if (start > rsv)
3025                         start -= rsv;
3026                 if (start > 0)
3027                         retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3028                                                     &ret_blk, NULL);
3029
3030                 if (retval) {
3031                         com_err(program_name, retval,
3032                                 _("while zeroing block %llu at end of filesystem"),
3033                                 ret_blk);
3034                 }
3035                 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3036                 create_root_dir(fs);
3037                 create_lost_and_found(fs);
3038                 reserve_inodes(fs);
3039                 create_bad_block_inode(fs, bb_list);
3040                 if (ext2fs_has_feature_resize_inode(fs->super)) {
3041                         retval = ext2fs_create_resize_inode(fs);
3042                         if (retval) {
3043                                 com_err("ext2fs_create_resize_inode", retval,
3044                                         "%s",
3045                                 _("while reserving blocks for online resize"));
3046                                 exit(1);
3047                         }
3048                 }
3049         }
3050
3051         if (journal_device) {
3052                 ext2_filsys     jfs;
3053
3054                 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3055                                         NULL) && !force)
3056                         proceed_question(proceed_delay);
3057                 check_mount(journal_device, force, _("journal"));
3058
3059                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3060                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
3061                                      fs->blocksize, unix_io_manager, &jfs);
3062                 if (retval) {
3063                         com_err(program_name, retval,
3064                                 _("while trying to open journal device %s\n"),
3065                                 journal_device);
3066                         exit(1);
3067                 }
3068                 if (!quiet) {
3069                         printf(_("Adding journal to device %s: "),
3070                                journal_device);
3071                         fflush(stdout);
3072                 }
3073                 retval = ext2fs_add_journal_device(fs, jfs);
3074                 if(retval) {
3075                         com_err (program_name, retval,
3076                                  _("\n\twhile trying to add journal to device %s"),
3077                                  journal_device);
3078                         exit(1);
3079                 }
3080                 if (!quiet)
3081                         printf("%s", _("done\n"));
3082                 ext2fs_close_free(&jfs);
3083                 free(journal_device);
3084         } else if ((journal_size) ||
3085                    ext2fs_has_feature_journal(&fs_param)) {
3086                 if (super_only) {
3087                         printf("%s", _("Skipping journal creation in super-only mode\n"));
3088                         fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3089                         goto no_journal;
3090                 }
3091
3092                 if (!journal_blocks) {
3093                         ext2fs_clear_feature_journal(fs->super);
3094                         goto no_journal;
3095                 }
3096                 if (!quiet) {
3097                         printf(_("Creating journal (%u blocks): "),
3098                                journal_blocks);
3099                         fflush(stdout);
3100                 }
3101                 retval = ext2fs_add_journal_inode2(fs, journal_blocks,
3102                                                    journal_location,
3103                                                    journal_flags);
3104                 if (retval) {
3105                         com_err(program_name, retval, "%s",
3106                                 _("\n\twhile trying to create journal"));
3107                         exit(1);
3108                 }
3109                 if (!quiet)
3110                         printf("%s", _("done\n"));
3111         }
3112 no_journal:
3113         if (!super_only &&
3114             ext2fs_has_feature_mmp(fs->super)) {
3115                 retval = ext2fs_mmp_init(fs);
3116                 if (retval) {
3117                         fprintf(stderr, "%s",
3118                                 _("\nError while enabling multiple "
3119                                   "mount protection feature."));
3120                         exit(1);
3121                 }
3122                 if (!quiet)
3123                         printf(_("Multiple mount protection is enabled "
3124                                  "with update interval %d seconds.\n"),
3125                                fs->super->s_mmp_update_interval);
3126         }
3127
3128         if (ext2fs_has_feature_bigalloc(&fs_param))
3129                 fix_cluster_bg_counts(fs);
3130         if (ext2fs_has_feature_project(&fs_param))
3131                 quotatype_bits |= QUOTA_PRJ_BIT;
3132         if (ext2fs_has_feature_quota(&fs_param))
3133                 create_quota_inodes(fs);
3134
3135         retval = mk_hugefiles(fs, device_name);
3136         if (retval)
3137                 com_err(program_name, retval, "while creating huge files");
3138         /* Copy files from the specified directory */
3139         if (src_root_dir) {
3140                 if (!quiet)
3141                         printf("%s", _("Copying files into the device: "));
3142
3143                 retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3144                                      EXT2_ROOT_INO);
3145                 if (retval) {
3146                         com_err(program_name, retval, "%s",
3147                                 _("while populating file system"));
3148                         exit(1);
3149                 } else if (!quiet)
3150                         printf("%s", _("done\n"));
3151         }
3152
3153         if (!quiet)
3154                 printf("%s", _("Writing superblocks and "
3155                        "filesystem accounting information: "));
3156         checkinterval = fs->super->s_checkinterval;
3157         max_mnt_count = fs->super->s_max_mnt_count;
3158         retval = ext2fs_close_free(&fs);
3159         if (retval) {
3160                 fprintf(stderr, "%s",
3161                         _("\nWarning, had trouble writing out superblocks."));
3162         } else if (!quiet) {
3163                 printf("%s", _("done\n\n"));
3164                 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3165                         print_check_message(max_mnt_count, checkinterval);
3166         }
3167
3168         remove_error_table(&et_ext2_error_table);
3169         remove_error_table(&et_prof_error_table);
3170         profile_release(profile);
3171         for (i=0; fs_types[i]; i++)
3172                 free(fs_types[i]);
3173         free(fs_types);
3174         return retval;
3175 }