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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
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 #ifdef HAVE_SYS_IOCTL_H
47 #include <sys/ioctl.h>
48 #endif
49 #include <libgen.h>
50 #include <limits.h>
51 #include <blkid/blkid.h>
52 
53 #include "ext2fs/ext2_fs.h"
54 #include "ext2fs/ext2fsP.h"
55 #include "uuid/uuid.h"
56 #include "util.h"
57 #include "support/nls-enable.h"
58 #include "support/plausible.h"
59 #include "support/profile.h"
60 #include "support/prof_err.h"
61 #include "../version.h"
62 #include "support/quotaio.h"
63 #include "mke2fs.h"
64 #include "create_inode.h"
65 
66 #define STRIDE_LENGTH 8
67 
68 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
69 
70 #ifndef __sparc__
71 #define ZAP_BOOTBLOCK
72 #endif
73 
74 #define DISCARD_STEP_MB		(2048)
75 
76 extern int isatty(int);
77 extern FILE *fpopen(const char *cmd, const char *mode);
78 
79 const char * program_name = "mke2fs";
80 static const char * device_name /* = NULL */;
81 
82 /* Command line options */
83 static int	cflag;
84 int	verbose;
85 int	quiet;
86 static int	super_only;
87 static int	discard = 1;	/* attempt to discard device before fs creation */
88 static int	direct_io;
89 static int	force;
90 static int	noaction;
91 static int	num_backups = 2; /* number of backup bg's for sparse_super2 */
92 static uid_t	root_uid;
93 static gid_t	root_gid;
94 int	journal_size;
95 int	journal_flags;
96 static int	lazy_itable_init;
97 static int	packed_meta_blocks;
98 int		no_copy_xattrs;
99 static char	*bad_blocks_filename = NULL;
100 static __u32	fs_stride;
101 /* Initialize usr/grp quotas by default */
102 static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
103 static __u64	offset;
104 static blk64_t journal_location = ~0LL;
105 static int	proceed_delay = -1;
106 static blk64_t	dev_size;
107 
108 static struct ext2_super_block fs_param;
109 static __u32 zero_buf[4];
110 static char *fs_uuid = NULL;
111 static char *creator_os;
112 static char *volume_label;
113 static char *mount_dir;
114 char *journal_device;
115 static int sync_kludge;	/* Set using the MKE2FS_SYNC env. option */
116 char **fs_types;
117 const char *src_root_dir;  /* Copy files from the specified directory */
118 static char *undo_file;
119 
120 static int android_sparse_file; /* -E android_sparse */
121 
122 static profile_t	profile;
123 
124 static int sys_page_size = 4096;
125 
126 static int errors_behavior = 0;
127 
usage(void)128 static void usage(void)
129 {
130 	fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
131 	"[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
132 	"[-J journal-options]\n"
133 	"\t[-G flex-group-size] [-N number-of-inodes] "
134 	"[-d root-directory]\n"
135 	"\t[-m reserved-blocks-percentage] [-o creator-os]\n"
136 	"\t[-g blocks-per-group] [-L volume-label] "
137 	"[-M last-mounted-directory]\n\t[-O feature[,...]] "
138 	"[-r fs-revision] [-E extended-option[,...]]\n"
139 	"\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
140 	"[-z undo_file]\n"
141 	"\t[-jnqvDFSV] device [blocks-count]\n"),
142 		program_name);
143 	exit(1);
144 }
145 
int_log2(unsigned long long arg)146 static int int_log2(unsigned long long arg)
147 {
148 	int	l = 0;
149 
150 	arg >>= 1;
151 	while (arg) {
152 		l++;
153 		arg >>= 1;
154 	}
155 	return l;
156 }
157 
int_log10(unsigned long long arg)158 int int_log10(unsigned long long arg)
159 {
160 	int	l;
161 
162 	for (l=0; arg ; l++)
163 		arg = arg / 10;
164 	return l;
165 }
166 
167 #ifdef __linux__
parse_version_number(const char * s)168 static int parse_version_number(const char *s)
169 {
170 	int	major, minor, rev;
171 	char	*endptr;
172 	const char *cp = s;
173 
174 	if (!s)
175 		return 0;
176 	major = strtol(cp, &endptr, 10);
177 	if (cp == endptr || *endptr != '.')
178 		return 0;
179 	cp = endptr + 1;
180 	minor = strtol(cp, &endptr, 10);
181 	if (cp == endptr || *endptr != '.')
182 		return 0;
183 	cp = endptr + 1;
184 	rev = strtol(cp, &endptr, 10);
185 	if (cp == endptr)
186 		return 0;
187 	return KERNEL_VERSION(major, minor, rev);
188 }
189 
is_before_linux_ver(unsigned int major,unsigned int minor,unsigned int rev)190 static int is_before_linux_ver(unsigned int major, unsigned int minor,
191 			       unsigned int rev)
192 {
193 	struct		utsname ut;
194 	static int	linux_version_code = -1;
195 
196 	if (uname(&ut)) {
197 		perror("uname");
198 		exit(1);
199 	}
200 	if (linux_version_code < 0)
201 		linux_version_code = parse_version_number(ut.release);
202 	if (linux_version_code == 0)
203 		return 0;
204 
205 	return linux_version_code < (int) KERNEL_VERSION(major, minor, rev);
206 }
207 #else
is_before_linux_ver(unsigned int major,unsigned int minor,unsigned int rev)208 static int is_before_linux_ver(unsigned int major, unsigned int minor,
209 			       unsigned int rev)
210 {
211 	return 0;
212 }
213 #endif
214 
215 /*
216  * Helper function for read_bb_file and test_disk
217  */
invalid_block(ext2_filsys fs EXT2FS_ATTR ((unused)),blk_t blk)218 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
219 {
220 	fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
221 	return;
222 }
223 
224 /*
225  * Reads the bad blocks list from a file
226  */
read_bb_file(ext2_filsys fs,badblocks_list * bb_list,const char * bad_blocks_file)227 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
228 			 const char *bad_blocks_file)
229 {
230 	FILE		*f;
231 	errcode_t	retval;
232 
233 	f = fopen(bad_blocks_file, "r");
234 	if (!f) {
235 		com_err("read_bad_blocks_file", errno,
236 			_("while trying to open %s"), bad_blocks_file);
237 		exit(1);
238 	}
239 	retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
240 	fclose (f);
241 	if (retval) {
242 		com_err("ext2fs_read_bb_FILE", retval, "%s",
243 			_("while reading in list of bad blocks from file"));
244 		exit(1);
245 	}
246 }
247 
248 /*
249  * Runs the badblocks program to test the disk
250  */
test_disk(ext2_filsys fs,badblocks_list * bb_list)251 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
252 {
253 	FILE		*f;
254 	errcode_t	retval;
255 	char		buf[1024];
256 
257 	sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
258 		quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
259 		fs->device_name, ext2fs_blocks_count(fs->super)-1);
260 	if (verbose)
261 		printf(_("Running command: %s\n"), buf);
262 	f = popen(buf, "r");
263 	if (!f) {
264 		com_err("popen", errno,
265 			_("while trying to run '%s'"), buf);
266 		exit(1);
267 	}
268 	retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
269 	pclose(f);
270 	if (retval) {
271 		com_err("ext2fs_read_bb_FILE", retval, "%s",
272 			_("while processing list of bad blocks from program"));
273 		exit(1);
274 	}
275 }
276 
handle_bad_blocks(ext2_filsys fs,badblocks_list bb_list)277 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
278 {
279 	dgrp_t			i;
280 	blk_t			j;
281 	unsigned 		must_be_good;
282 	blk_t			blk;
283 	badblocks_iterate	bb_iter;
284 	errcode_t		retval;
285 	blk_t			group_block;
286 	int			group;
287 	int			group_bad;
288 
289 	if (!bb_list)
290 		return;
291 
292 	/*
293 	 * The primary superblock and group descriptors *must* be
294 	 * good; if not, abort.
295 	 */
296 	must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
297 	for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
298 		if (ext2fs_badblocks_list_test(bb_list, i)) {
299 			fprintf(stderr, _("Block %d in primary "
300 				"superblock/group descriptor area bad.\n"), i);
301 			fprintf(stderr, _("Blocks %u through %u must be good "
302 				"in order to build a filesystem.\n"),
303 				fs->super->s_first_data_block, must_be_good);
304 			fputs(_("Aborting....\n"), stderr);
305 			exit(1);
306 		}
307 	}
308 
309 	/*
310 	 * See if any of the bad blocks are showing up in the backup
311 	 * superblocks and/or group descriptors.  If so, issue a
312 	 * warning and adjust the block counts appropriately.
313 	 */
314 	group_block = fs->super->s_first_data_block +
315 		fs->super->s_blocks_per_group;
316 
317 	for (i = 1; i < fs->group_desc_count; i++) {
318 		group_bad = 0;
319 		for (j=0; j < fs->desc_blocks+1; j++) {
320 			if (ext2fs_badblocks_list_test(bb_list,
321 						       group_block + j)) {
322 				if (!group_bad)
323 					fprintf(stderr,
324 _("Warning: the backup superblock/group descriptors at block %u contain\n"
325 "	bad blocks.\n\n"),
326 						group_block);
327 				group_bad++;
328 				group = ext2fs_group_of_blk2(fs, group_block+j);
329 				ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
330 				ext2fs_group_desc_csum_set(fs, group);
331 				ext2fs_free_blocks_count_add(fs->super, 1);
332 			}
333 		}
334 		group_block += fs->super->s_blocks_per_group;
335 	}
336 
337 	/*
338 	 * Mark all the bad blocks as used...
339 	 */
340 	retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
341 	if (retval) {
342 		com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
343 			_("while marking bad blocks as used"));
344 		exit(1);
345 	}
346 	while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
347 		ext2fs_mark_block_bitmap2(fs->block_map, blk);
348 	ext2fs_badblocks_list_iterate_end(bb_iter);
349 }
350 
write_reserved_inodes(ext2_filsys fs)351 static void write_reserved_inodes(ext2_filsys fs)
352 {
353 	errcode_t	retval;
354 	ext2_ino_t	ino;
355 	struct ext2_inode *inode;
356 
357 	retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
358 	if (retval) {
359 		com_err("inode_init", retval, _("while allocating memory"));
360 		exit(1);
361 	}
362 
363 	for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++) {
364 		retval = ext2fs_write_inode_full(fs, ino, inode,
365 						 EXT2_INODE_SIZE(fs->super));
366 		if (retval) {
367 			com_err("ext2fs_write_inode_full", retval,
368 				_("while writing reserved inodes"));
369 			exit(1);
370 		}
371 	}
372 
373 	ext2fs_free_mem(&inode);
374 }
375 
packed_allocate_tables(ext2_filsys fs)376 static errcode_t packed_allocate_tables(ext2_filsys fs)
377 {
378 	errcode_t	retval;
379 	dgrp_t		i;
380 	blk64_t		goal = 0;
381 
382 	for (i = 0; i < fs->group_desc_count; i++) {
383 		retval = ext2fs_new_block2(fs, goal, NULL, &goal);
384 		if (retval)
385 			return retval;
386 		ext2fs_block_alloc_stats2(fs, goal, +1);
387 		ext2fs_block_bitmap_loc_set(fs, i, goal);
388 	}
389 	for (i = 0; i < fs->group_desc_count; i++) {
390 		retval = ext2fs_new_block2(fs, goal, NULL, &goal);
391 		if (retval)
392 			return retval;
393 		ext2fs_block_alloc_stats2(fs, goal, +1);
394 		ext2fs_inode_bitmap_loc_set(fs, i, goal);
395 	}
396 	for (i = 0; i < fs->group_desc_count; i++) {
397 		blk64_t end = ext2fs_blocks_count(fs->super) - 1;
398 		retval = ext2fs_get_free_blocks2(fs, goal, end,
399 						 fs->inode_blocks_per_group,
400 						 fs->block_map, &goal);
401 		if (retval)
402 			return retval;
403 		ext2fs_block_alloc_stats_range(fs, goal,
404 					       fs->inode_blocks_per_group, +1);
405 		ext2fs_inode_table_loc_set(fs, i, goal);
406 		ext2fs_group_desc_csum_set(fs, i);
407 	}
408 	return 0;
409 }
410 
write_inode_tables(ext2_filsys fs,int lazy_flag,int itable_zeroed)411 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
412 {
413 	errcode_t	retval;
414 	blk64_t		blk;
415 	dgrp_t		i;
416 	int		num;
417 	struct ext2fs_numeric_progress_struct progress;
418 
419 	ext2fs_numeric_progress_init(fs, &progress,
420 				     _("Writing inode tables: "),
421 				     fs->group_desc_count);
422 
423 	for (i = 0; i < fs->group_desc_count; i++) {
424 		ext2fs_numeric_progress_update(fs, &progress, i);
425 
426 		blk = ext2fs_inode_table_loc(fs, i);
427 		num = fs->inode_blocks_per_group;
428 
429 		if (lazy_flag)
430 			num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
431 					       ext2fs_bg_itable_unused(fs, i)) *
432 					      EXT2_INODE_SIZE(fs->super),
433 					      EXT2_BLOCK_SIZE(fs->super));
434 		if (!lazy_flag || itable_zeroed) {
435 			/* The kernel doesn't need to zero the itable blocks */
436 			ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
437 			ext2fs_group_desc_csum_set(fs, i);
438 		}
439 		if (!itable_zeroed) {
440 			retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
441 			if (retval) {
442 				fprintf(stderr, _("\nCould not write %d "
443 					  "blocks in inode table starting at %llu: %s\n"),
444 					num, blk, error_message(retval));
445 				exit(1);
446 			}
447 		}
448 		if (sync_kludge) {
449 			if (sync_kludge == 1)
450 				io_channel_flush(fs->io);
451 			else if ((i % sync_kludge) == 0)
452 				io_channel_flush(fs->io);
453 		}
454 	}
455 	ext2fs_numeric_progress_close(fs, &progress,
456 				      _("done                            \n"));
457 
458 	/* Reserved inodes must always have correct checksums */
459 	if (ext2fs_has_feature_metadata_csum(fs->super))
460 		write_reserved_inodes(fs);
461 }
462 
create_root_dir(ext2_filsys fs)463 static void create_root_dir(ext2_filsys fs)
464 {
465 	errcode_t		retval;
466 	struct ext2_inode	inode;
467 
468 	retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
469 	if (retval) {
470 		com_err("ext2fs_mkdir", retval, "%s",
471 			_("while creating root dir"));
472 		exit(1);
473 	}
474 	if (root_uid != 0 || root_gid != 0) {
475 		retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
476 		if (retval) {
477 			com_err("ext2fs_read_inode", retval, "%s",
478 				_("while reading root inode"));
479 			exit(1);
480 		}
481 
482 		inode.i_uid = root_uid;
483 		ext2fs_set_i_uid_high(inode, root_uid >> 16);
484 		inode.i_gid = root_gid;
485 		ext2fs_set_i_gid_high(inode, root_gid >> 16);
486 
487 		retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
488 		if (retval) {
489 			com_err("ext2fs_write_inode", retval, "%s",
490 				_("while setting root inode ownership"));
491 			exit(1);
492 		}
493 	}
494 }
495 
create_lost_and_found(ext2_filsys fs)496 static void create_lost_and_found(ext2_filsys fs)
497 {
498 	unsigned int		lpf_size = 0;
499 	errcode_t		retval;
500 	ext2_ino_t		ino;
501 	const char		*name = "lost+found";
502 	int			i;
503 
504 	fs->umask = 077;
505 	retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
506 	if (retval) {
507 		com_err("ext2fs_mkdir", retval, "%s",
508 			_("while creating /lost+found"));
509 		exit(1);
510 	}
511 
512 	retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
513 	if (retval) {
514 		com_err("ext2_lookup", retval, "%s",
515 			_("while looking up /lost+found"));
516 		exit(1);
517 	}
518 
519 	for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
520 		/* Ensure that lost+found is at least 2 blocks, so we always
521 		 * test large empty blocks for big-block filesystems.  */
522 		if ((lpf_size += fs->blocksize) >= 16*1024 &&
523 		    lpf_size >= 2 * fs->blocksize)
524 			break;
525 		retval = ext2fs_expand_dir(fs, ino);
526 		if (retval) {
527 			com_err("ext2fs_expand_dir", retval, "%s",
528 				_("while expanding /lost+found"));
529 			exit(1);
530 		}
531 	}
532 }
533 
create_bad_block_inode(ext2_filsys fs,badblocks_list bb_list)534 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
535 {
536 	errcode_t	retval;
537 
538 	ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
539 	ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
540 	retval = ext2fs_update_bb_inode(fs, bb_list);
541 	if (retval) {
542 		com_err("ext2fs_update_bb_inode", retval, "%s",
543 			_("while setting bad block inode"));
544 		exit(1);
545 	}
546 
547 }
548 
reserve_inodes(ext2_filsys fs)549 static void reserve_inodes(ext2_filsys fs)
550 {
551 	ext2_ino_t	i;
552 
553 	for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
554 		ext2fs_inode_alloc_stats2(fs, i, +1, 0);
555 	ext2fs_mark_ib_dirty(fs);
556 }
557 
558 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
559 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
560 #define BSD_LABEL_OFFSET        64
561 
zap_sector(ext2_filsys fs,int sect,int nsect)562 static void zap_sector(ext2_filsys fs, int sect, int nsect)
563 {
564 	char *buf;
565 	int retval;
566 	unsigned int *magic;
567 
568 	buf = calloc(512, nsect);
569 	if (!buf) {
570 		printf(_("Out of memory erasing sectors %d-%d\n"),
571 		       sect, sect + nsect - 1);
572 		exit(1);
573 	}
574 
575 	if (sect == 0) {
576 		/* Check for a BSD disklabel, and don't erase it if so */
577 		retval = io_channel_read_blk64(fs->io, 0, -512, buf);
578 		if (retval)
579 			fprintf(stderr,
580 				_("Warning: could not read block 0: %s\n"),
581 				error_message(retval));
582 		else {
583 			magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
584 			if ((*magic == BSD_DISKMAGIC) ||
585 			    (*magic == BSD_MAGICDISK))
586 				return;
587 		}
588 	}
589 
590 	memset(buf, 0, 512*nsect);
591 	io_channel_set_blksize(fs->io, 512);
592 	retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
593 	io_channel_set_blksize(fs->io, fs->blocksize);
594 	free(buf);
595 	if (retval)
596 		fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
597 			sect, error_message(retval));
598 }
599 
create_journal_dev(ext2_filsys fs)600 static void create_journal_dev(ext2_filsys fs)
601 {
602 	struct ext2fs_numeric_progress_struct progress;
603 	errcode_t		retval;
604 	char			*buf;
605 	blk64_t			blk, err_blk;
606 	int			c, count, err_count;
607 
608 	retval = ext2fs_create_journal_superblock(fs,
609 				  ext2fs_blocks_count(fs->super), 0, &buf);
610 	if (retval) {
611 		com_err("create_journal_dev", retval, "%s",
612 			_("while initializing journal superblock"));
613 		exit(1);
614 	}
615 
616 	if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
617 		goto write_superblock;
618 
619 	ext2fs_numeric_progress_init(fs, &progress,
620 				     _("Zeroing journal device: "),
621 				     ext2fs_blocks_count(fs->super));
622 	blk = 0;
623 	count = ext2fs_blocks_count(fs->super);
624 	while (count > 0) {
625 		if (count > 1024)
626 			c = 1024;
627 		else
628 			c = count;
629 		retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
630 		if (retval) {
631 			com_err("create_journal_dev", retval,
632 				_("while zeroing journal device "
633 				  "(block %llu, count %d)"),
634 				err_blk, err_count);
635 			exit(1);
636 		}
637 		blk += c;
638 		count -= c;
639 		ext2fs_numeric_progress_update(fs, &progress, blk);
640 	}
641 
642 	ext2fs_numeric_progress_close(fs, &progress, NULL);
643 write_superblock:
644 	retval = io_channel_write_blk64(fs->io,
645 					fs->super->s_first_data_block+1,
646 					1, buf);
647 	(void) ext2fs_free_mem(&buf);
648 	if (retval) {
649 		com_err("create_journal_dev", retval, "%s",
650 			_("while writing journal superblock"));
651 		exit(1);
652 	}
653 }
654 
show_stats(ext2_filsys fs)655 static void show_stats(ext2_filsys fs)
656 {
657 	struct ext2_super_block *s = fs->super;
658         char                    *os;
659 	blk64_t			group_block;
660 	dgrp_t			i;
661 	int			need, col_left;
662 
663 	if (!verbose) {
664 		printf(_("Creating filesystem with %llu %dk blocks and "
665 			 "%u inodes\n"),
666 		       ext2fs_blocks_count(s), fs->blocksize >> 10,
667 		       s->s_inodes_count);
668 		goto skip_details;
669 	}
670 
671 	if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
672 		fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
673 		       ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
674 
675 	printf(_("Filesystem label=%.*s\n"), EXT2_LEN_STR(s->s_volume_name));
676 
677 	os = e2p_os2string(fs->super->s_creator_os);
678 	if (os)
679 		printf(_("OS type: %s\n"), os);
680 	free(os);
681 	printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
682 		s->s_log_block_size);
683 	if (ext2fs_has_feature_bigalloc(fs->super))
684 		printf(_("Cluster size=%u (log=%u)\n"),
685 		       fs->blocksize << fs->cluster_ratio_bits,
686 		       s->s_log_cluster_size);
687 	else
688 		printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
689 		       s->s_log_cluster_size);
690 	printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
691 	       s->s_raid_stride, s->s_raid_stripe_width);
692 	printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
693 	       ext2fs_blocks_count(s));
694 	printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
695 		ext2fs_r_blocks_count(s),
696 	       100.0 *  ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
697 	printf(_("First data block=%u\n"), s->s_first_data_block);
698 	if (root_uid != 0 || root_gid != 0)
699 		printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
700 	if (s->s_reserved_gdt_blocks)
701 		printf(_("Maximum filesystem blocks=%lu\n"),
702 		       (s->s_reserved_gdt_blocks + fs->desc_blocks) *
703 		       EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
704 	if (fs->group_desc_count > 1)
705 		printf(_("%u block groups\n"), fs->group_desc_count);
706 	else
707 		printf(_("%u block group\n"), fs->group_desc_count);
708 	if (ext2fs_has_feature_bigalloc(fs->super))
709 		printf(_("%u blocks per group, %u clusters per group\n"),
710 		       s->s_blocks_per_group, s->s_clusters_per_group);
711 	else
712 		printf(_("%u blocks per group, %u fragments per group\n"),
713 		       s->s_blocks_per_group, s->s_clusters_per_group);
714 	printf(_("%u inodes per group\n"), s->s_inodes_per_group);
715 
716 skip_details:
717 	if (fs->group_desc_count == 1) {
718 		printf("\n");
719 		return;
720 	}
721 
722 	if (!e2p_is_null_uuid(s->s_uuid))
723 		printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
724 	printf("%s", _("Superblock backups stored on blocks: "));
725 	group_block = s->s_first_data_block;
726 	col_left = 0;
727 	for (i = 1; i < fs->group_desc_count; i++) {
728 		group_block += s->s_blocks_per_group;
729 		if (!ext2fs_bg_has_super(fs, i))
730 			continue;
731 		if (i != 1)
732 			printf(", ");
733 		need = int_log10(group_block) + 2;
734 		if (need > col_left) {
735 			printf("\n\t");
736 			col_left = 72;
737 		}
738 		col_left -= need;
739 		printf("%llu", group_block);
740 	}
741 	printf("\n\n");
742 }
743 
744 /*
745  * Returns true if making a file system for the Hurd, else 0
746  */
for_hurd(const char * os)747 static int for_hurd(const char *os)
748 {
749 	if (!os) {
750 #ifdef __GNU__
751 		return 1;
752 #else
753 		return 0;
754 #endif
755 	}
756 	if (isdigit(*os))
757 		return (atoi(os) == EXT2_OS_HURD);
758 	return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
759 }
760 
761 /*
762  * Set the S_CREATOR_OS field.  Return true if OS is known,
763  * otherwise, 0.
764  */
set_os(struct ext2_super_block * sb,char * os)765 static int set_os(struct ext2_super_block *sb, char *os)
766 {
767 	if (isdigit (*os))
768 		sb->s_creator_os = atoi (os);
769 	else if (strcasecmp(os, "linux") == 0)
770 		sb->s_creator_os = EXT2_OS_LINUX;
771 	else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
772 		sb->s_creator_os = EXT2_OS_HURD;
773 	else if (strcasecmp(os, "freebsd") == 0)
774 		sb->s_creator_os = EXT2_OS_FREEBSD;
775 	else if (strcasecmp(os, "lites") == 0)
776 		sb->s_creator_os = EXT2_OS_LITES;
777 	else
778 		return 0;
779 	return 1;
780 }
781 
782 #define PATH_SET "PATH=/sbin"
783 
parse_extended_opts(struct ext2_super_block * param,const char * opts)784 static void parse_extended_opts(struct ext2_super_block *param,
785 				const char *opts)
786 {
787 	char	*buf, *token, *next, *p, *arg, *badopt = 0;
788 	int	len;
789 	int	r_usage = 0;
790 	int	ret;
791 	int	encoding = -1;
792 	char 	*encoding_flags = NULL;
793 
794 	len = strlen(opts);
795 	buf = malloc(len+1);
796 	if (!buf) {
797 		fprintf(stderr, "%s",
798 			_("Couldn't allocate memory to parse options!\n"));
799 		exit(1);
800 	}
801 	strcpy(buf, opts);
802 	for (token = buf; token && *token; token = next) {
803 		p = strchr(token, ',');
804 		next = 0;
805 		if (p) {
806 			*p = 0;
807 			next = p+1;
808 		}
809 		arg = strchr(token, '=');
810 		if (arg) {
811 			*arg = 0;
812 			arg++;
813 		}
814 		if (strcmp(token, "desc-size") == 0 ||
815 		    strcmp(token, "desc_size") == 0) {
816 			int desc_size;
817 
818 			if (!ext2fs_has_feature_64bit(&fs_param)) {
819 				fprintf(stderr,
820 					_("%s requires '-O 64bit'\n"), token);
821 				r_usage++;
822 				continue;
823 			}
824 			if (param->s_reserved_gdt_blocks != 0) {
825 				fprintf(stderr,
826 					_("'%s' must be before 'resize=%u'\n"),
827 					token, param->s_reserved_gdt_blocks);
828 				r_usage++;
829 				continue;
830 			}
831 			if (!arg) {
832 				r_usage++;
833 				badopt = token;
834 				continue;
835 			}
836 			desc_size = strtoul(arg, &p, 0);
837 			if (*p || (desc_size & (desc_size - 1))) {
838 				fprintf(stderr,
839 					_("Invalid desc_size: '%s'\n"), arg);
840 				r_usage++;
841 				continue;
842 			}
843 			param->s_desc_size = desc_size;
844 		} else if (strcmp(token, "hash_seed") == 0) {
845 			if (!arg) {
846 				r_usage++;
847 				badopt = token;
848 				continue;
849 			}
850 			if (uuid_parse(arg,
851 				(unsigned char *)param->s_hash_seed) != 0) {
852 				fprintf(stderr,
853 					_("Invalid hash seed: %s\n"), arg);
854 				r_usage++;
855 				continue;
856 			}
857 		} else if (strcmp(token, "offset") == 0) {
858 			if (!arg) {
859 				r_usage++;
860 				badopt = token;
861 				continue;
862 			}
863 			offset = strtoull(arg, &p, 0);
864 			if (*p) {
865 				fprintf(stderr, _("Invalid offset: %s\n"),
866 					arg);
867 				r_usage++;
868 				continue;
869 			}
870 		} else if (strcmp(token, "mmp_update_interval") == 0) {
871 			if (!arg) {
872 				r_usage++;
873 				badopt = token;
874 				continue;
875 			}
876 			param->s_mmp_update_interval = strtoul(arg, &p, 0);
877 			if (*p) {
878 				fprintf(stderr,
879 					_("Invalid mmp_update_interval: %s\n"),
880 					arg);
881 				r_usage++;
882 				continue;
883 			}
884 		} else if (strcmp(token, "no_copy_xattrs") == 0) {
885 			no_copy_xattrs = 1;
886 			continue;
887 		} else if (strcmp(token, "num_backup_sb") == 0) {
888 			if (!arg) {
889 				r_usage++;
890 				badopt = token;
891 				continue;
892 			}
893 			num_backups = strtoul(arg, &p, 0);
894 			if (*p || num_backups > 2) {
895 				fprintf(stderr,
896 					_("Invalid # of backup "
897 					  "superblocks: %s\n"),
898 					arg);
899 				r_usage++;
900 				continue;
901 			}
902 		} else if (strcmp(token, "packed_meta_blocks") == 0) {
903 			if (arg)
904 				packed_meta_blocks = strtoul(arg, &p, 0);
905 			else
906 				packed_meta_blocks = 1;
907 			if (packed_meta_blocks)
908 				journal_location = 0;
909 		} else if (strcmp(token, "stride") == 0) {
910 			if (!arg) {
911 				r_usage++;
912 				badopt = token;
913 				continue;
914 			}
915 			param->s_raid_stride = strtoul(arg, &p, 0);
916 			if (*p) {
917 				fprintf(stderr,
918 					_("Invalid stride parameter: %s\n"),
919 					arg);
920 				r_usage++;
921 				continue;
922 			}
923 		} else if (strcmp(token, "stripe-width") == 0 ||
924 			   strcmp(token, "stripe_width") == 0) {
925 			if (!arg) {
926 				r_usage++;
927 				badopt = token;
928 				continue;
929 			}
930 			param->s_raid_stripe_width = strtoul(arg, &p, 0);
931 			if (*p) {
932 				fprintf(stderr,
933 					_("Invalid stripe-width parameter: %s\n"),
934 					arg);
935 				r_usage++;
936 				continue;
937 			}
938 		} else if (!strcmp(token, "resize")) {
939 			blk64_t resize;
940 			unsigned long bpg, rsv_groups;
941 			unsigned long group_desc_count, desc_blocks;
942 			unsigned int gdpb, blocksize;
943 			int rsv_gdb;
944 
945 			if (!arg) {
946 				r_usage++;
947 				badopt = token;
948 				continue;
949 			}
950 
951 			resize = parse_num_blocks2(arg,
952 						   param->s_log_block_size);
953 
954 			if (resize == 0) {
955 				fprintf(stderr,
956 					_("Invalid resize parameter: %s\n"),
957 					arg);
958 				r_usage++;
959 				continue;
960 			}
961 			if (resize <= ext2fs_blocks_count(param)) {
962 				fprintf(stderr, "%s",
963 					_("The resize maximum must be greater "
964 					  "than the filesystem size.\n"));
965 				r_usage++;
966 				continue;
967 			}
968 
969 			blocksize = EXT2_BLOCK_SIZE(param);
970 			bpg = param->s_blocks_per_group;
971 			if (!bpg)
972 				bpg = blocksize * 8;
973 			gdpb = EXT2_DESC_PER_BLOCK(param);
974 			group_desc_count = (__u32) ext2fs_div64_ceil(
975 				ext2fs_blocks_count(param), bpg);
976 			desc_blocks = (group_desc_count +
977 				       gdpb - 1) / gdpb;
978 			rsv_groups = ext2fs_div64_ceil(resize, bpg);
979 			rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
980 				desc_blocks;
981 			if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
982 				rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
983 
984 			if (rsv_gdb > 0) {
985 				if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
986 					fprintf(stderr, "%s",
987 	_("On-line resizing not supported with revision 0 filesystems\n"));
988 					free(buf);
989 					exit(1);
990 				}
991 				ext2fs_set_feature_resize_inode(param);
992 
993 				param->s_reserved_gdt_blocks = rsv_gdb;
994 			}
995 		} else if (!strcmp(token, "test_fs")) {
996 			param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
997 		} else if (!strcmp(token, "lazy_itable_init")) {
998 			if (arg)
999 				lazy_itable_init = strtoul(arg, &p, 0);
1000 			else
1001 				lazy_itable_init = 1;
1002 		} else if (!strcmp(token, "lazy_journal_init")) {
1003 			if (arg)
1004 				journal_flags |= strtoul(arg, &p, 0) ?
1005 						EXT2_MKJOURNAL_LAZYINIT : 0;
1006 			else
1007 				journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
1008 		} else if (!strcmp(token, "root_owner")) {
1009 			if (arg) {
1010 				root_uid = strtoul(arg, &p, 0);
1011 				if (*p != ':') {
1012 					fprintf(stderr,
1013 						_("Invalid root_owner: '%s'\n"),
1014 						arg);
1015 					r_usage++;
1016 					continue;
1017 				}
1018 				p++;
1019 				root_gid = strtoul(p, &p, 0);
1020 				if (*p) {
1021 					fprintf(stderr,
1022 						_("Invalid root_owner: '%s'\n"),
1023 						arg);
1024 					r_usage++;
1025 					continue;
1026 				}
1027 			} else {
1028 				root_uid = getuid();
1029 				root_gid = getgid();
1030 			}
1031 		} else if (!strcmp(token, "discard")) {
1032 			discard = 1;
1033 		} else if (!strcmp(token, "nodiscard")) {
1034 			discard = 0;
1035 		} else if (!strcmp(token, "quotatype")) {
1036 			char *errtok = NULL;
1037 
1038 			if (!arg) {
1039 				r_usage++;
1040 				badopt = token;
1041 				continue;
1042 			}
1043 			quotatype_bits = 0;
1044 			ret = parse_quota_types(arg, &quotatype_bits, &errtok);
1045 			if (ret) {
1046 				if (errtok) {
1047 					fprintf(stderr,
1048 				"Failed to parse quota type at %s", errtok);
1049 					free(errtok);
1050 				} else
1051 					com_err(program_name, ret,
1052 						"while parsing quota type");
1053 				r_usage++;
1054 				badopt = token;
1055 				continue;
1056 			}
1057 		} else if (!strcmp(token, "android_sparse")) {
1058 			android_sparse_file = 1;
1059 		} else if (!strcmp(token, "encoding")) {
1060 			if (!arg) {
1061 				r_usage++;
1062 				continue;
1063 			}
1064 
1065 			encoding = e2p_str2encoding(arg);
1066 			if (encoding < 0) {
1067 				fprintf(stderr, _("Invalid encoding: %s"), arg);
1068 				r_usage++;
1069 				continue;
1070 			}
1071 			param->s_encoding = encoding;
1072 			ext2fs_set_feature_casefold(param);
1073 		} else if (!strcmp(token, "encoding_flags")) {
1074 			if (!arg) {
1075 				r_usage++;
1076 				continue;
1077 			}
1078 			encoding_flags = arg;
1079 		} else {
1080 			r_usage++;
1081 			badopt = token;
1082 		}
1083 	}
1084 	if (r_usage) {
1085 		fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1086 			"Extended options are separated by commas, "
1087 			"and may take an argument which\n"
1088 			"\tis set off by an equals ('=') sign.\n\n"
1089 			"Valid extended options are:\n"
1090 			"\tmmp_update_interval=<interval>\n"
1091 			"\tnum_backup_sb=<0|1|2>\n"
1092 			"\tstride=<RAID per-disk data chunk in blocks>\n"
1093 			"\tstripe-width=<RAID stride * data disks in blocks>\n"
1094 			"\toffset=<offset to create the file system>\n"
1095 			"\tresize=<resize maximum size in blocks>\n"
1096 			"\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1097 			"\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1098 			"\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1099 			"\troot_owner=<uid of root dir>:<gid of root dir>\n"
1100 			"\ttest_fs\n"
1101 			"\tdiscard\n"
1102 			"\tnodiscard\n"
1103 			"\tencoding=<encoding>\n"
1104 			"\tencoding_flags=<flags>\n"
1105 			"\tquotatype=<quota type(s) to be enabled>\n\n"),
1106 			badopt ? badopt : "");
1107 		free(buf);
1108 		exit(1);
1109 	}
1110 	if (param->s_raid_stride &&
1111 	    (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1112 		fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1113 				  "multiple of stride %u.\n\n"),
1114 			param->s_raid_stripe_width, param->s_raid_stride);
1115 
1116 	if (ext2fs_has_feature_casefold(param)) {
1117 		param->s_encoding_flags =
1118 			e2p_get_encoding_flags(param->s_encoding);
1119 
1120 		if (encoding_flags &&
1121 		    e2p_str2encoding_flags(param->s_encoding, encoding_flags,
1122 					   &param->s_encoding_flags)) {
1123 			fprintf(stderr, _("error: Invalid encoding flag: %s\n"),
1124 				encoding_flags);
1125 			free(buf);
1126 			exit(1);
1127 		}
1128 	} else if (encoding_flags) {
1129 		fprintf(stderr, _("error: An encoding must be explicitly "
1130 				  "specified when passing encoding-flags\n"));
1131 		free(buf);
1132 		exit(1);
1133 	}
1134 
1135 	free(buf);
1136 }
1137 
1138 static __u32 ok_features[3] = {
1139 	/* Compat */
1140 	EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1141 		EXT2_FEATURE_COMPAT_RESIZE_INODE |
1142 		EXT2_FEATURE_COMPAT_DIR_INDEX |
1143 		EXT2_FEATURE_COMPAT_EXT_ATTR |
1144 		EXT4_FEATURE_COMPAT_SPARSE_SUPER2,
1145 	/* Incompat */
1146 	EXT2_FEATURE_INCOMPAT_FILETYPE|
1147 		EXT3_FEATURE_INCOMPAT_EXTENTS|
1148 		EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1149 		EXT2_FEATURE_INCOMPAT_META_BG|
1150 		EXT4_FEATURE_INCOMPAT_FLEX_BG|
1151 		EXT4_FEATURE_INCOMPAT_EA_INODE|
1152 		EXT4_FEATURE_INCOMPAT_MMP |
1153 		EXT4_FEATURE_INCOMPAT_64BIT|
1154 		EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1155 		EXT4_FEATURE_INCOMPAT_ENCRYPT |
1156 		EXT4_FEATURE_INCOMPAT_CASEFOLD |
1157 		EXT4_FEATURE_INCOMPAT_CSUM_SEED |
1158 		EXT4_FEATURE_INCOMPAT_LARGEDIR,
1159 	/* R/O compat */
1160 	EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1161 		EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1162 		EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1163 		EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1164 		EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1165 		EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1166 		EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1167 		EXT4_FEATURE_RO_COMPAT_QUOTA|
1168 		EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1169 		EXT4_FEATURE_RO_COMPAT_PROJECT|
1170 		EXT4_FEATURE_RO_COMPAT_VERITY
1171 };
1172 
1173 
syntax_err_report(const char * filename,long err,int line_num)1174 static void syntax_err_report(const char *filename, long err, int line_num)
1175 {
1176 	fprintf(stderr,
1177 		_("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1178 		filename, line_num, error_message(err));
1179 	exit(1);
1180 }
1181 
1182 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1183 
edit_feature(const char * str,__u32 * compat_array)1184 static void edit_feature(const char *str, __u32 *compat_array)
1185 {
1186 	if (!str)
1187 		return;
1188 
1189 	if (e2p_edit_feature(str, compat_array, ok_features)) {
1190 		fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1191 			str);
1192 		exit(1);
1193 	}
1194 }
1195 
edit_mntopts(const char * str,__u32 * mntopts)1196 static void edit_mntopts(const char *str, __u32 *mntopts)
1197 {
1198 	if (!str)
1199 		return;
1200 
1201 	if (e2p_edit_mntopts(str, mntopts, ~0)) {
1202 		fprintf(stderr, _("Invalid mount option set: %s\n"),
1203 			str);
1204 		exit(1);
1205 	}
1206 }
1207 
1208 struct str_list {
1209 	char **list;
1210 	int num;
1211 	int max;
1212 };
1213 
init_list(struct str_list * sl)1214 static errcode_t init_list(struct str_list *sl)
1215 {
1216 	sl->num = 0;
1217 	sl->max = 1;
1218 	sl->list = malloc((sl->max+1) * sizeof(char *));
1219 	if (!sl->list)
1220 		return ENOMEM;
1221 	sl->list[0] = 0;
1222 	return 0;
1223 }
1224 
push_string(struct str_list * sl,const char * str)1225 static errcode_t push_string(struct str_list *sl, const char *str)
1226 {
1227 	char **new_list;
1228 
1229 	if (sl->num >= sl->max) {
1230 		sl->max += 2;
1231 		new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1232 		if (!new_list)
1233 			return ENOMEM;
1234 		sl->list = new_list;
1235 	}
1236 	sl->list[sl->num] = malloc(strlen(str)+1);
1237 	if (sl->list[sl->num] == 0)
1238 		return ENOMEM;
1239 	strcpy(sl->list[sl->num], str);
1240 	sl->num++;
1241 	sl->list[sl->num] = 0;
1242 	return 0;
1243 }
1244 
print_str_list(char ** list)1245 static void print_str_list(char **list)
1246 {
1247 	char **cpp;
1248 
1249 	for (cpp = list; *cpp; cpp++) {
1250 		printf("'%s'", *cpp);
1251 		if (cpp[1])
1252 			fputs(", ", stdout);
1253 	}
1254 	fputc('\n', stdout);
1255 }
1256 
1257 /*
1258  * Return TRUE if the profile has the given subsection
1259  */
profile_has_subsection(profile_t prof,const char * section,const char * subsection)1260 static int profile_has_subsection(profile_t prof, const char *section,
1261 				  const char *subsection)
1262 {
1263 	void			*state;
1264 	const char		*names[4];
1265 	char			*name;
1266 	int			ret = 0;
1267 
1268 	names[0] = section;
1269 	names[1] = subsection;
1270 	names[2] = 0;
1271 
1272 	if (profile_iterator_create(prof, names,
1273 				    PROFILE_ITER_LIST_SECTION |
1274 				    PROFILE_ITER_RELATIONS_ONLY, &state))
1275 		return 0;
1276 
1277 	if ((profile_iterator(&state, &name, 0) == 0) && name) {
1278 		free(name);
1279 		ret = 1;
1280 	}
1281 
1282 	profile_iterator_free(&state);
1283 	return ret;
1284 }
1285 
parse_fs_type(const char * fs_type,const char * usage_types,struct ext2_super_block * sb,blk64_t fs_blocks_count,char * progname)1286 static char **parse_fs_type(const char *fs_type,
1287 			    const char *usage_types,
1288 			    struct ext2_super_block *sb,
1289 			    blk64_t fs_blocks_count,
1290 			    char *progname)
1291 {
1292 	const char	*ext_type = 0;
1293 	char		*parse_str;
1294 	char		*profile_type = 0;
1295 	char		*cp, *t;
1296 	const char	*size_type;
1297 	struct str_list	list;
1298 	unsigned long long meg;
1299 	int		is_hurd = for_hurd(creator_os);
1300 
1301 	if (init_list(&list))
1302 		return 0;
1303 
1304 	if (fs_type)
1305 		ext_type = fs_type;
1306 	else if (is_hurd)
1307 		ext_type = "ext2";
1308 	else if (!strcmp(program_name, "mke3fs"))
1309 		ext_type = "ext3";
1310 	else if (!strcmp(program_name, "mke4fs"))
1311 		ext_type = "ext4";
1312 	else if (progname) {
1313 		ext_type = strrchr(progname, '/');
1314 		if (ext_type)
1315 			ext_type++;
1316 		else
1317 			ext_type = progname;
1318 
1319 		if (!strncmp(ext_type, "mkfs.", 5)) {
1320 			ext_type += 5;
1321 			if (ext_type[0] == 0)
1322 				ext_type = 0;
1323 		} else
1324 			ext_type = 0;
1325 	}
1326 
1327 	if (!ext_type) {
1328 		profile_get_string(profile, "defaults", "fs_type", 0,
1329 				   "ext2", &profile_type);
1330 		ext_type = profile_type;
1331 		if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1332 			ext_type = "ext3";
1333 	}
1334 
1335 
1336 	if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1337 	    strcmp(ext_type, "ext2")) {
1338 		printf(_("\nYour mke2fs.conf file does not define the "
1339 			 "%s filesystem type.\n"), ext_type);
1340 		if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1341 		    !strcmp(ext_type, "ext4dev")) {
1342 			printf("%s", _("You probably need to install an "
1343 				       "updated mke2fs.conf file.\n\n"));
1344 		}
1345 		if (!force) {
1346 			printf("%s", _("Aborting...\n"));
1347 			exit(1);
1348 		}
1349 	}
1350 
1351 	meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1352 	if (fs_blocks_count < 3 * meg)
1353 		size_type = "floppy";
1354 	else if (fs_blocks_count < 512 * meg)
1355 		size_type = "small";
1356 	else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1357 		size_type = "default";
1358 	else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1359 		size_type = "big";
1360 	else
1361 		size_type = "huge";
1362 
1363 	if (!usage_types)
1364 		usage_types = size_type;
1365 
1366 	parse_str = malloc(strlen(usage_types)+1);
1367 	if (!parse_str) {
1368 		free(profile_type);
1369 		free(list.list);
1370 		return 0;
1371 	}
1372 	strcpy(parse_str, usage_types);
1373 
1374 	if (ext_type)
1375 		push_string(&list, ext_type);
1376 	cp = parse_str;
1377 	while (1) {
1378 		t = strchr(cp, ',');
1379 		if (t)
1380 			*t = '\0';
1381 
1382 		if (*cp) {
1383 			if (profile_has_subsection(profile, "fs_types", cp))
1384 				push_string(&list, cp);
1385 			else if (strcmp(cp, "default") != 0)
1386 				fprintf(stderr,
1387 					_("\nWarning: the fs_type %s is not "
1388 					  "defined in mke2fs.conf\n\n"),
1389 					cp);
1390 		}
1391 		if (t)
1392 			cp = t+1;
1393 		else
1394 			break;
1395 	}
1396 	free(parse_str);
1397 	free(profile_type);
1398 	if (is_hurd)
1399 		push_string(&list, "hurd");
1400 	return (list.list);
1401 }
1402 
get_string_from_profile(char ** types,const char * opt,const char * def_val)1403 char *get_string_from_profile(char **types, const char *opt,
1404 				     const char *def_val)
1405 {
1406 	char *ret = 0;
1407 	int i;
1408 
1409 	for (i=0; types[i]; i++);
1410 	for (i-=1; i >=0 ; i--) {
1411 		profile_get_string(profile, "fs_types", types[i],
1412 				   opt, 0, &ret);
1413 		if (ret)
1414 			return ret;
1415 	}
1416 	profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1417 	return (ret);
1418 }
1419 
get_int_from_profile(char ** types,const char * opt,int def_val)1420 int get_int_from_profile(char **types, const char *opt, int def_val)
1421 {
1422 	int ret;
1423 	char **cpp;
1424 
1425 	profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1426 	for (cpp = types; *cpp; cpp++)
1427 		profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1428 	return ret;
1429 }
1430 
get_uint_from_profile(char ** types,const char * opt,unsigned int def_val)1431 static unsigned int get_uint_from_profile(char **types, const char *opt,
1432 					unsigned int def_val)
1433 {
1434 	unsigned int ret;
1435 	char **cpp;
1436 
1437 	profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1438 	for (cpp = types; *cpp; cpp++)
1439 		profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1440 	return ret;
1441 }
1442 
get_double_from_profile(char ** types,const char * opt,double def_val)1443 static double get_double_from_profile(char **types, const char *opt,
1444 				      double def_val)
1445 {
1446 	double ret;
1447 	char **cpp;
1448 
1449 	profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1450 	for (cpp = types; *cpp; cpp++)
1451 		profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1452 	return ret;
1453 }
1454 
get_bool_from_profile(char ** types,const char * opt,int def_val)1455 int get_bool_from_profile(char **types, const char *opt, int def_val)
1456 {
1457 	int ret;
1458 	char **cpp;
1459 
1460 	profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1461 	for (cpp = types; *cpp; cpp++)
1462 		profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1463 	return ret;
1464 }
1465 
1466 extern const char *mke2fs_default_profile;
1467 static const char *default_files[] = { "<default>", 0 };
1468 
1469 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1470 /*
1471  * Sets the geometry of a device (stripe/stride), and returns the
1472  * device's alignment offset, if any, or a negative error.
1473  */
get_device_geometry(const char * file,struct ext2_super_block * param,unsigned int psector_size)1474 static int get_device_geometry(const char *file,
1475 			       struct ext2_super_block *param,
1476 			       unsigned int psector_size)
1477 {
1478 	int rc = -1;
1479 	unsigned int blocksize;
1480 	blkid_probe pr;
1481 	blkid_topology tp;
1482 	unsigned long min_io;
1483 	unsigned long opt_io;
1484 	struct stat statbuf;
1485 
1486 	/* Nothing to do for a regular file */
1487 	if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1488 		return 0;
1489 
1490 	pr = blkid_new_probe_from_filename(file);
1491 	if (!pr)
1492 		goto out;
1493 
1494 	tp = blkid_probe_get_topology(pr);
1495 	if (!tp)
1496 		goto out;
1497 
1498 	min_io = blkid_topology_get_minimum_io_size(tp);
1499 	opt_io = blkid_topology_get_optimal_io_size(tp);
1500 	blocksize = EXT2_BLOCK_SIZE(param);
1501 	if ((min_io == 0) && (psector_size > blocksize))
1502 		min_io = psector_size;
1503 	if ((opt_io == 0) && min_io)
1504 		opt_io = min_io;
1505 	if ((opt_io == 0) && (psector_size > blocksize))
1506 		opt_io = psector_size;
1507 
1508 	/* setting stripe/stride to blocksize is pointless */
1509 	if (min_io > blocksize)
1510 		param->s_raid_stride = min_io / blocksize;
1511 	if (opt_io > blocksize)
1512 		param->s_raid_stripe_width = opt_io / blocksize;
1513 
1514 	rc = blkid_topology_get_alignment_offset(tp);
1515 out:
1516 	blkid_free_probe(pr);
1517 	return rc;
1518 }
1519 #endif
1520 
PRS(int argc,char * argv[])1521 static void PRS(int argc, char *argv[])
1522 {
1523 	int		b, c, flags;
1524 	int		cluster_size = 0;
1525 	char 		*tmp, **cpp;
1526 	int		explicit_fssize = 0;
1527 	int		blocksize = 0;
1528 	int		inode_ratio = 0;
1529 	int		inode_size = 0;
1530 	unsigned long	flex_bg_size = 0;
1531 	double		reserved_ratio = -1.0;
1532 	int		lsector_size = 0, psector_size = 0;
1533 	int		show_version_only = 0, is_device = 0;
1534 	unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1535 	errcode_t	retval;
1536 	char *		oldpath = getenv("PATH");
1537 	char *		extended_opts = 0;
1538 	char *		fs_type = 0;
1539 	char *		usage_types = 0;
1540 	/*
1541 	 * NOTE: A few words about fs_blocks_count and blocksize:
1542 	 *
1543 	 * Initially, blocksize is set to zero, which implies 1024.
1544 	 * If -b is specified, blocksize is updated to the user's value.
1545 	 *
1546 	 * Next, the device size or the user's "blocks" command line argument
1547 	 * is used to set fs_blocks_count; the units are blocksize.
1548 	 *
1549 	 * Later, if blocksize hasn't been set and the profile specifies a
1550 	 * blocksize, then blocksize is updated and fs_blocks_count is scaled
1551 	 * appropriately.  Note the change in units!
1552 	 *
1553 	 * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1554 	 */
1555 	blk64_t		fs_blocks_count = 0;
1556 	long		sysval;
1557 	int		s_opt = -1, r_opt = -1;
1558 	char		*fs_features = 0;
1559 	int		fs_features_size = 0;
1560 	int		use_bsize;
1561 	char		*newpath;
1562 	int		pathlen = sizeof(PATH_SET) + 1;
1563 
1564 	if (oldpath)
1565 		pathlen += strlen(oldpath);
1566 	newpath = malloc(pathlen);
1567 	if (!newpath) {
1568 		fprintf(stderr, "%s",
1569 			_("Couldn't allocate memory for new PATH.\n"));
1570 		exit(1);
1571 	}
1572 	strcpy(newpath, PATH_SET);
1573 
1574 	/* Update our PATH to include /sbin  */
1575 	if (oldpath) {
1576 		strcat (newpath, ":");
1577 		strcat (newpath, oldpath);
1578 	}
1579 	putenv (newpath);
1580 
1581 	/* Determine the system page size if possible */
1582 #ifdef HAVE_SYSCONF
1583 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1584 #define _SC_PAGESIZE _SC_PAGE_SIZE
1585 #endif
1586 #ifdef _SC_PAGESIZE
1587 	sysval = sysconf(_SC_PAGESIZE);
1588 	if (sysval > 0)
1589 		sys_page_size = sysval;
1590 #endif /* _SC_PAGESIZE */
1591 #endif /* HAVE_SYSCONF */
1592 
1593 	if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1594 		config_fn[0] = tmp;
1595 	profile_set_syntax_err_cb(syntax_err_report);
1596 	retval = profile_init(config_fn, &profile);
1597 	if (retval == ENOENT) {
1598 		retval = profile_init(default_files, &profile);
1599 		if (retval)
1600 			goto profile_error;
1601 		retval = profile_set_default(profile, mke2fs_default_profile);
1602 		if (retval)
1603 			goto profile_error;
1604 	} else if (retval) {
1605 profile_error:
1606 		fprintf(stderr, _("Couldn't init profile successfully"
1607 				  " (error: %ld).\n"), retval);
1608 		exit(1);
1609 	}
1610 
1611 	setbuf(stdout, NULL);
1612 	setbuf(stderr, NULL);
1613 	add_error_table(&et_ext2_error_table);
1614 	add_error_table(&et_prof_error_table);
1615 	memset(&fs_param, 0, sizeof(struct ext2_super_block));
1616 	fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
1617 
1618 	if (is_before_linux_ver(2, 2, 0))
1619 		fs_param.s_rev_level = 0;
1620 
1621 	if (argc && *argv) {
1622 		program_name = get_progname(*argv);
1623 
1624 		/* If called as mkfs.ext3, create a journal inode */
1625 		if (!strcmp(program_name, "mkfs.ext3") ||
1626 		    !strcmp(program_name, "mke3fs"))
1627 			journal_size = -1;
1628 	}
1629 
1630 	while ((c = getopt (argc, argv,
1631 		    "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) {
1632 		switch (c) {
1633 		case 'b':
1634 			blocksize = parse_num_blocks2(optarg, -1);
1635 			b = (blocksize > 0) ? blocksize : -blocksize;
1636 			if (b < EXT2_MIN_BLOCK_SIZE ||
1637 			    b > EXT2_MAX_BLOCK_SIZE) {
1638 				com_err(program_name, 0,
1639 					_("invalid block size - %s"), optarg);
1640 				exit(1);
1641 			}
1642 			if (blocksize > 4096)
1643 				fprintf(stderr, _("Warning: blocksize %d not "
1644 						  "usable on most systems.\n"),
1645 					blocksize);
1646 			if (blocksize > 0)
1647 				fs_param.s_log_block_size =
1648 					int_log2(blocksize >>
1649 						 EXT2_MIN_BLOCK_LOG_SIZE);
1650 			break;
1651 		case 'c':	/* Check for bad blocks */
1652 			cflag++;
1653 			break;
1654 		case 'C':
1655 			cluster_size = parse_num_blocks2(optarg, -1);
1656 			if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1657 			    cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1658 				com_err(program_name, 0,
1659 					_("invalid cluster size - %s"),
1660 					optarg);
1661 				exit(1);
1662 			}
1663 			break;
1664 		case 'd':
1665 			src_root_dir = optarg;
1666 			break;
1667 		case 'D':
1668 			direct_io = 1;
1669 			break;
1670 		case 'R':
1671 			com_err(program_name, 0, "%s",
1672 				_("'-R' is deprecated, use '-E' instead"));
1673 			/* fallthrough */
1674 		case 'E':
1675 			extended_opts = optarg;
1676 			break;
1677 		case 'e':
1678 			if (strcmp(optarg, "continue") == 0)
1679 				errors_behavior = EXT2_ERRORS_CONTINUE;
1680 			else if (strcmp(optarg, "remount-ro") == 0)
1681 				errors_behavior = EXT2_ERRORS_RO;
1682 			else if (strcmp(optarg, "panic") == 0)
1683 				errors_behavior = EXT2_ERRORS_PANIC;
1684 			else {
1685 				com_err(program_name, 0,
1686 					_("bad error behavior - %s"),
1687 					optarg);
1688 				usage();
1689 			}
1690 			break;
1691 		case 'F':
1692 			force++;
1693 			break;
1694 		case 'g':
1695 			fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1696 			if (*tmp) {
1697 				com_err(program_name, 0, "%s",
1698 				_("Illegal number for blocks per group"));
1699 				exit(1);
1700 			}
1701 			if ((fs_param.s_blocks_per_group % 8) != 0) {
1702 				com_err(program_name, 0, "%s",
1703 				_("blocks per group must be multiple of 8"));
1704 				exit(1);
1705 			}
1706 			break;
1707 		case 'G':
1708 			flex_bg_size = strtoul(optarg, &tmp, 0);
1709 			if (*tmp) {
1710 				com_err(program_name, 0, "%s",
1711 					_("Illegal number for flex_bg size"));
1712 				exit(1);
1713 			}
1714 			if (flex_bg_size < 1 ||
1715 			    (flex_bg_size & (flex_bg_size-1)) != 0) {
1716 				com_err(program_name, 0, "%s",
1717 					_("flex_bg size must be a power of 2"));
1718 				exit(1);
1719 			}
1720 			if (flex_bg_size > MAX_32_NUM) {
1721 				com_err(program_name, 0,
1722 				_("flex_bg size (%lu) must be less than"
1723 				" or equal to 2^31"), flex_bg_size);
1724 				exit(1);
1725 			}
1726 			break;
1727 		case 'i':
1728 			inode_ratio = parse_num_blocks(optarg, -1);
1729 			if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1730 			    inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1731 				com_err(program_name, 0,
1732 					_("invalid inode ratio %s (min %d/max %d)"),
1733 					optarg, EXT2_MIN_BLOCK_SIZE,
1734 					EXT2_MAX_BLOCK_SIZE * 1024);
1735 				exit(1);
1736 			}
1737 			break;
1738 		case 'I':
1739 			inode_size = strtoul(optarg, &tmp, 0);
1740 			if (*tmp) {
1741 				com_err(program_name, 0,
1742 					_("invalid inode size - %s"), optarg);
1743 				exit(1);
1744 			}
1745 			break;
1746 		case 'j':
1747 			if (!journal_size)
1748 				journal_size = -1;
1749 			break;
1750 		case 'J':
1751 			parse_journal_opts(optarg);
1752 			break;
1753 		case 'K':
1754 			fprintf(stderr, "%s",
1755 				_("Warning: -K option is deprecated and "
1756 				  "should not be used anymore. Use "
1757 				  "\'-E nodiscard\' extended option "
1758 				  "instead!\n"));
1759 			discard = 0;
1760 			break;
1761 		case 'l':
1762 			bad_blocks_filename = realloc(bad_blocks_filename,
1763 						      strlen(optarg) + 1);
1764 			if (!bad_blocks_filename) {
1765 				com_err(program_name, ENOMEM, "%s",
1766 					_("in malloc for bad_blocks_filename"));
1767 				exit(1);
1768 			}
1769 			strcpy(bad_blocks_filename, optarg);
1770 			break;
1771 		case 'L':
1772 			volume_label = optarg;
1773 			if (strlen(volume_label) > EXT2_LABEL_LEN) {
1774 				volume_label[EXT2_LABEL_LEN] = '\0';
1775 				fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1776 					volume_label);
1777 			}
1778 			break;
1779 		case 'm':
1780 			reserved_ratio = strtod(optarg, &tmp);
1781 			if ( *tmp || reserved_ratio > 50 ||
1782 			     reserved_ratio < 0) {
1783 				com_err(program_name, 0,
1784 					_("invalid reserved blocks percent - %s"),
1785 					optarg);
1786 				exit(1);
1787 			}
1788 			break;
1789 		case 'M':
1790 			mount_dir = optarg;
1791 			break;
1792 		case 'n':
1793 			noaction++;
1794 			break;
1795 		case 'N':
1796 			num_inodes = strtoul(optarg, &tmp, 0);
1797 			if (*tmp) {
1798 				com_err(program_name, 0,
1799 					_("bad num inodes - %s"), optarg);
1800 					exit(1);
1801 			}
1802 			break;
1803 		case 'o':
1804 			creator_os = optarg;
1805 			break;
1806 		case 'O':
1807 			retval = ext2fs_resize_mem(fs_features_size,
1808 				   fs_features_size + 1 + strlen(optarg),
1809 						   &fs_features);
1810 			if (retval) {
1811 				com_err(program_name, retval,
1812 				     _("while allocating fs_feature string"));
1813 				exit(1);
1814 			}
1815 			if (fs_features_size)
1816 				strcat(fs_features, ",");
1817 			else
1818 				fs_features[0] = 0;
1819 			strcat(fs_features, optarg);
1820 			fs_features_size += 1 + strlen(optarg);
1821 			break;
1822 		case 'q':
1823 			quiet = 1;
1824 			break;
1825 		case 'r':
1826 			r_opt = strtoul(optarg, &tmp, 0);
1827 			if (*tmp) {
1828 				com_err(program_name, 0,
1829 					_("bad revision level - %s"), optarg);
1830 				exit(1);
1831 			}
1832 			if (r_opt > EXT2_MAX_SUPP_REV) {
1833 				com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1834 					_("while trying to create revision %d"), r_opt);
1835 				exit(1);
1836 			}
1837 			fs_param.s_rev_level = r_opt;
1838 			break;
1839 		case 's':	/* deprecated */
1840 			s_opt = atoi(optarg);
1841 			break;
1842 		case 'S':
1843 			super_only = 1;
1844 			break;
1845 		case 't':
1846 			if (fs_type) {
1847 				com_err(program_name, 0, "%s",
1848 				    _("The -t option may only be used once"));
1849 				exit(1);
1850 			}
1851 			fs_type = strdup(optarg);
1852 			break;
1853 		case 'T':
1854 			if (usage_types) {
1855 				com_err(program_name, 0, "%s",
1856 				    _("The -T option may only be used once"));
1857 				exit(1);
1858 			}
1859 			usage_types = strdup(optarg);
1860 			break;
1861 		case 'U':
1862 			fs_uuid = optarg;
1863 			break;
1864 		case 'v':
1865 			verbose = 1;
1866 			break;
1867 		case 'V':
1868 			/* Print version number and exit */
1869 			show_version_only++;
1870 			break;
1871 		case 'z':
1872 			undo_file = optarg;
1873 			break;
1874 		default:
1875 			usage();
1876 		}
1877 	}
1878 	if ((optind == argc) && !show_version_only)
1879 		usage();
1880 	device_name = argv[optind++];
1881 
1882 	if (!quiet || show_version_only)
1883 		fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1884 			 E2FSPROGS_DATE);
1885 
1886 	if (show_version_only) {
1887 		fprintf(stderr, _("\tUsing %s\n"),
1888 			error_message(EXT2_ET_BASE));
1889 		exit(0);
1890 	}
1891 
1892 	/*
1893 	 * If there's no blocksize specified and there is a journal
1894 	 * device, use it to figure out the blocksize
1895 	 */
1896 	if (blocksize <= 0 && journal_device) {
1897 		ext2_filsys	jfs;
1898 		io_manager	io_ptr;
1899 
1900 #ifdef CONFIG_TESTIO_DEBUG
1901 		if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1902 			io_ptr = test_io_manager;
1903 			test_io_backing_manager = unix_io_manager;
1904 		} else
1905 #endif
1906 			io_ptr = unix_io_manager;
1907 		retval = ext2fs_open(journal_device,
1908 				     EXT2_FLAG_JOURNAL_DEV_OK, 0,
1909 				     0, io_ptr, &jfs);
1910 		if (retval) {
1911 			com_err(program_name, retval,
1912 				_("while trying to open journal device %s\n"),
1913 				journal_device);
1914 			exit(1);
1915 		}
1916 		if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1917 			com_err(program_name, 0,
1918 				_("Journal dev blocksize (%d) smaller than "
1919 				  "minimum blocksize %d\n"), jfs->blocksize,
1920 				-blocksize);
1921 			exit(1);
1922 		}
1923 		blocksize = jfs->blocksize;
1924 		printf(_("Using journal device's blocksize: %d\n"), blocksize);
1925 		fs_param.s_log_block_size =
1926 			int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1927 		ext2fs_close_free(&jfs);
1928 	}
1929 
1930 	if (optind < argc) {
1931 		fs_blocks_count = parse_num_blocks2(argv[optind++],
1932 						   fs_param.s_log_block_size);
1933 		if (!fs_blocks_count) {
1934 			com_err(program_name, 0,
1935 				_("invalid blocks '%s' on device '%s'"),
1936 				argv[optind - 1], device_name);
1937 			exit(1);
1938 		}
1939 	}
1940 	if (optind < argc)
1941 		usage();
1942 
1943 	profile_get_integer(profile, "options", "sync_kludge", 0, 0,
1944 			    &sync_kludge);
1945 	tmp = getenv("MKE2FS_SYNC");
1946 	if (tmp)
1947 		sync_kludge = atoi(tmp);
1948 
1949 	profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1950 			    &proceed_delay);
1951 
1952 	/* The isatty() test is so we don't break existing scripts */
1953 	flags = CREATE_FILE;
1954 	if (isatty(0) && isatty(1) && !offset)
1955 		flags |= CHECK_FS_EXIST;
1956 	if (!quiet)
1957 		flags |= VERBOSE_CREATE;
1958 	if (fs_blocks_count == 0)
1959 		flags |= NO_SIZE;
1960 	else
1961 		explicit_fssize = 1;
1962 	if (!check_plausibility(device_name, flags, &is_device) && !force)
1963 		proceed_question(proceed_delay);
1964 
1965 	check_mount(device_name, force, _("filesystem"));
1966 
1967 	/* Determine the size of the device (if possible) */
1968 	if (noaction && fs_blocks_count) {
1969 		dev_size = fs_blocks_count;
1970 		retval = 0;
1971 	} else
1972 #ifndef _WIN32
1973 		retval = ext2fs_get_device_size2(device_name,
1974 						 EXT2_BLOCK_SIZE(&fs_param),
1975 						 &dev_size);
1976 #else
1977 		retval = ext2fs_get_device_size(device_name,
1978 						EXT2_BLOCK_SIZE(&fs_param),
1979 						&dev_size);
1980 #endif
1981 	if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1982 		com_err(program_name, retval, "%s",
1983 			_("while trying to determine filesystem size"));
1984 		exit(1);
1985 	}
1986 	if (!fs_blocks_count) {
1987 		if (retval == EXT2_ET_UNIMPLEMENTED) {
1988 			com_err(program_name, 0, "%s",
1989 				_("Couldn't determine device size; you "
1990 				"must specify\nthe size of the "
1991 				"filesystem\n"));
1992 			exit(1);
1993 		} else {
1994 			if (dev_size == 0) {
1995 				com_err(program_name, 0, "%s",
1996 				_("Device size reported to be zero.  "
1997 				  "Invalid partition specified, or\n\t"
1998 				  "partition table wasn't reread "
1999 				  "after running fdisk, due to\n\t"
2000 				  "a modified partition being busy "
2001 				  "and in use.  You may need to reboot\n\t"
2002 				  "to re-read your partition table.\n"
2003 				  ));
2004 				exit(1);
2005 			}
2006 			fs_blocks_count = dev_size;
2007 			if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
2008 				fs_blocks_count &= ~((blk64_t) ((sys_page_size /
2009 					     EXT2_BLOCK_SIZE(&fs_param))-1));
2010 		}
2011 	} else if (!force && is_device && (fs_blocks_count > dev_size)) {
2012 		com_err(program_name, 0, "%s",
2013 			_("Filesystem larger than apparent device size."));
2014 		proceed_question(proceed_delay);
2015 	}
2016 
2017 	if (!fs_type)
2018 		profile_get_string(profile, "devices", device_name,
2019 				   "fs_type", 0, &fs_type);
2020 	if (!usage_types)
2021 		profile_get_string(profile, "devices", device_name,
2022 				   "usage_types", 0, &usage_types);
2023 
2024 	/*
2025 	 * We have the file system (or device) size, so we can now
2026 	 * determine the appropriate file system types so the fs can
2027 	 * be appropriately configured.
2028 	 */
2029 	fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
2030 				 fs_blocks_count ? fs_blocks_count : dev_size,
2031 				 argv[0]);
2032 	if (!fs_types) {
2033 		fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
2034 		exit(1);
2035 	}
2036 
2037 	/* Figure out what features should be enabled */
2038 
2039 	tmp = NULL;
2040 	if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
2041 		tmp = get_string_from_profile(fs_types, "base_features",
2042 		      "sparse_super,large_file,filetype,resize_inode,dir_index");
2043 		edit_feature(tmp, &fs_param.s_feature_compat);
2044 		free(tmp);
2045 
2046 		/* And which mount options as well */
2047 		tmp = get_string_from_profile(fs_types, "default_mntopts",
2048 					      "acl,user_xattr");
2049 		edit_mntopts(tmp, &fs_param.s_default_mount_opts);
2050 		if (tmp)
2051 			free(tmp);
2052 
2053 		for (cpp = fs_types; *cpp; cpp++) {
2054 			tmp = NULL;
2055 			profile_get_string(profile, "fs_types", *cpp,
2056 					   "features", "", &tmp);
2057 			if (tmp && *tmp)
2058 				edit_feature(tmp, &fs_param.s_feature_compat);
2059 			if (tmp)
2060 				free(tmp);
2061 		}
2062 		tmp = get_string_from_profile(fs_types, "default_features",
2063 					      "");
2064 	}
2065 	/* Mask off features which aren't supported by the Hurd */
2066 	if (for_hurd(creator_os)) {
2067 		ext2fs_clear_feature_filetype(&fs_param);
2068 		ext2fs_clear_feature_huge_file(&fs_param);
2069 		ext2fs_clear_feature_metadata_csum(&fs_param);
2070 		ext2fs_clear_feature_ea_inode(&fs_param);
2071 		ext2fs_clear_feature_casefold(&fs_param);
2072 	}
2073 	edit_feature(fs_features ? fs_features : tmp,
2074 		     &fs_param.s_feature_compat);
2075 	if (tmp)
2076 		free(tmp);
2077 	(void) ext2fs_free_mem(&fs_features);
2078 	/*
2079 	 * If the user specified features incompatible with the Hurd, complain
2080 	 */
2081 	if (for_hurd(creator_os)) {
2082 		if (ext2fs_has_feature_filetype(&fs_param)) {
2083 			fprintf(stderr, "%s", _("The HURD does not support the "
2084 						"filetype feature.\n"));
2085 			exit(1);
2086 		}
2087 		if (ext2fs_has_feature_huge_file(&fs_param)) {
2088 			fprintf(stderr, "%s", _("The HURD does not support the "
2089 						"huge_file feature.\n"));
2090 			exit(1);
2091 		}
2092 		if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2093 			fprintf(stderr, "%s", _("The HURD does not support the "
2094 						"metadata_csum feature.\n"));
2095 			exit(1);
2096 		}
2097 		if (ext2fs_has_feature_ea_inode(&fs_param)) {
2098 			fprintf(stderr, "%s", _("The HURD does not support the "
2099 						"ea_inode feature.\n"));
2100 			exit(1);
2101 		}
2102 	}
2103 
2104 	/* Get the hardware sector sizes, if available */
2105 	retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2106 	if (retval) {
2107 		com_err(program_name, retval, "%s",
2108 			_("while trying to determine hardware sector size"));
2109 		exit(1);
2110 	}
2111 	retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2112 	if (retval) {
2113 		com_err(program_name, retval, "%s",
2114 			_("while trying to determine physical sector size"));
2115 		exit(1);
2116 	}
2117 
2118 	tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2119 	if (tmp != NULL)
2120 		lsector_size = atoi(tmp);
2121 	tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2122 	if (tmp != NULL)
2123 		psector_size = atoi(tmp);
2124 
2125 	/* Older kernels may not have physical/logical distinction */
2126 	if (!psector_size)
2127 		psector_size = lsector_size;
2128 
2129 	if (blocksize <= 0) {
2130 		use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2131 
2132 		if (use_bsize == -1) {
2133 			use_bsize = sys_page_size;
2134 			if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2135 				use_bsize = 4096;
2136 		}
2137 		if (lsector_size && use_bsize < lsector_size)
2138 			use_bsize = lsector_size;
2139 		if ((blocksize < 0) && (use_bsize < (-blocksize)))
2140 			use_bsize = -blocksize;
2141 		blocksize = use_bsize;
2142 		fs_blocks_count /= (blocksize / 1024);
2143 	} else {
2144 		if (blocksize < lsector_size) {			/* Impossible */
2145 			com_err(program_name, EINVAL, "%s",
2146 				_("while setting blocksize; too small "
2147 				  "for device\n"));
2148 			exit(1);
2149 		} else if ((blocksize < psector_size) &&
2150 			   (psector_size <= sys_page_size)) {	/* Suboptimal */
2151 			fprintf(stderr, _("Warning: specified blocksize %d is "
2152 				"less than device physical sectorsize %d\n"),
2153 				blocksize, psector_size);
2154 		}
2155 	}
2156 
2157 	fs_param.s_log_block_size =
2158 		int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2159 
2160 	/*
2161 	 * We now need to do a sanity check of fs_blocks_count for
2162 	 * 32-bit vs 64-bit block number support.
2163 	 */
2164 	if ((fs_blocks_count > MAX_32_NUM) &&
2165 	    ext2fs_has_feature_64bit(&fs_param))
2166 		ext2fs_clear_feature_resize_inode(&fs_param);
2167 	if ((fs_blocks_count > MAX_32_NUM) &&
2168 	    !ext2fs_has_feature_64bit(&fs_param) &&
2169 	    get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2170 		ext2fs_set_feature_64bit(&fs_param);
2171 		ext2fs_clear_feature_resize_inode(&fs_param);
2172 	}
2173 	if ((fs_blocks_count > MAX_32_NUM) &&
2174 	    !ext2fs_has_feature_64bit(&fs_param)) {
2175 		fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2176 				  "too big to be expressed\n\t"
2177 				  "in 32 bits using a blocksize of %d.\n"),
2178 			program_name, fs_blocks_count, device_name,
2179 			EXT2_BLOCK_SIZE(&fs_param));
2180 		exit(1);
2181 	}
2182 	/*
2183 	 * Guard against group descriptor count overflowing... Mostly to avoid
2184 	 * strange results for absurdly large devices.  This is in log2:
2185 	 * (blocksize) * (bits per byte) * (maximum number of block groups)
2186 	 */
2187 	if (fs_blocks_count >
2188 	    (1ULL << (EXT2_BLOCK_SIZE_BITS(&fs_param) + 3 + 32)) - 1) {
2189 		fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2190 				  "too big to create\n\t"
2191 				  "a filesystem using a blocksize of %d.\n"),
2192 			program_name, fs_blocks_count, device_name,
2193 			EXT2_BLOCK_SIZE(&fs_param));
2194 		exit(1);
2195 	}
2196 
2197 	ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2198 
2199 	if (ext2fs_has_feature_journal_dev(&fs_param)) {
2200 		int i;
2201 
2202 		for (i=0; fs_types[i]; i++) {
2203 			free(fs_types[i]);
2204 			fs_types[i] = 0;
2205 		}
2206 		fs_types[0] = strdup("journal");
2207 		fs_types[1] = 0;
2208 	}
2209 
2210 	if (verbose) {
2211 		fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2212 		print_str_list(fs_types);
2213 	}
2214 
2215 	if (r_opt == EXT2_GOOD_OLD_REV &&
2216 	    (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2217 	     fs_param.s_feature_ro_compat)) {
2218 		fprintf(stderr, "%s", _("Filesystem features not supported "
2219 					"with revision 0 filesystems\n"));
2220 		exit(1);
2221 	}
2222 
2223 	if (s_opt > 0) {
2224 		if (r_opt == EXT2_GOOD_OLD_REV) {
2225 			fprintf(stderr, "%s",
2226 				_("Sparse superblocks not supported "
2227 				  "with revision 0 filesystems\n"));
2228 			exit(1);
2229 		}
2230 		ext2fs_set_feature_sparse_super(&fs_param);
2231 	} else if (s_opt == 0)
2232 		ext2fs_clear_feature_sparse_super(&fs_param);
2233 
2234 	if (journal_size != 0) {
2235 		if (r_opt == EXT2_GOOD_OLD_REV) {
2236 			fprintf(stderr, "%s", _("Journals not supported with "
2237 						"revision 0 filesystems\n"));
2238 			exit(1);
2239 		}
2240 		ext2fs_set_feature_journal(&fs_param);
2241 	}
2242 
2243 	/* Get reserved_ratio from profile if not specified on cmd line. */
2244 	if (reserved_ratio < 0.0) {
2245 		reserved_ratio = get_double_from_profile(
2246 					fs_types, "reserved_ratio", 5.0);
2247 		if (reserved_ratio > 50 || reserved_ratio < 0) {
2248 			com_err(program_name, 0,
2249 				_("invalid reserved blocks percent - %lf"),
2250 				reserved_ratio);
2251 			exit(1);
2252 		}
2253 	}
2254 
2255 	if (ext2fs_has_feature_journal_dev(&fs_param)) {
2256 		reserved_ratio = 0;
2257 		fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2258 		fs_param.s_feature_compat = 0;
2259 		fs_param.s_feature_ro_compat &=
2260 					EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2261  	}
2262 
2263 	/* Check the user's mkfs options for 64bit */
2264 	if (ext2fs_has_feature_64bit(&fs_param) &&
2265 	    !ext2fs_has_feature_extents(&fs_param)) {
2266 		printf("%s", _("Extents MUST be enabled for a 64-bit "
2267 			       "filesystem.  Pass -O extents to rectify.\n"));
2268 		exit(1);
2269 	}
2270 
2271 	/* Set first meta blockgroup via an environment variable */
2272 	/* (this is mostly for debugging purposes) */
2273 	if (ext2fs_has_feature_meta_bg(&fs_param) &&
2274 	    (tmp = getenv("MKE2FS_FIRST_META_BG")))
2275 		fs_param.s_first_meta_bg = atoi(tmp);
2276 	if (ext2fs_has_feature_bigalloc(&fs_param)) {
2277 		if (!cluster_size)
2278 			cluster_size = get_int_from_profile(fs_types,
2279 							    "cluster_size",
2280 							    blocksize*16);
2281 		fs_param.s_log_cluster_size =
2282 			int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2283 		if (fs_param.s_log_cluster_size &&
2284 		    fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2285 			com_err(program_name, 0, "%s",
2286 				_("The cluster size may not be "
2287 				  "smaller than the block size.\n"));
2288 			exit(1);
2289 		}
2290 	} else if (cluster_size) {
2291 		com_err(program_name, 0, "%s",
2292 			_("specifying a cluster size requires the "
2293 			  "bigalloc feature"));
2294 		exit(1);
2295 	} else
2296 		fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2297 
2298 	if (inode_ratio == 0) {
2299 		inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2300 						   8192);
2301 		if (inode_ratio < blocksize)
2302 			inode_ratio = blocksize;
2303 		if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2304 			inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2305 	}
2306 
2307 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2308 	retval = get_device_geometry(device_name, &fs_param,
2309 				     (unsigned int) psector_size);
2310 	if (retval < 0) {
2311 		fprintf(stderr,
2312 			_("warning: Unable to get device geometry for %s\n"),
2313 			device_name);
2314 	} else if (retval) {
2315 		printf(_("%s alignment is offset by %lu bytes.\n"),
2316 		       device_name, retval);
2317 		printf(_("This may result in very poor performance, "
2318 			  "(re)-partitioning suggested.\n"));
2319 	}
2320 #endif
2321 
2322 	num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2323 
2324 	blocksize = EXT2_BLOCK_SIZE(&fs_param);
2325 
2326 	/*
2327 	 * Initialize s_desc_size so that the parse_extended_opts()
2328 	 * can correctly handle "-E resize=NNN" if the 64-bit option
2329 	 * is set.
2330 	 */
2331 	if (ext2fs_has_feature_64bit(&fs_param))
2332 		fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2333 
2334 	/* This check should happen beyond the last assignment to blocksize */
2335 	if (blocksize > sys_page_size) {
2336 		if (!force) {
2337 			com_err(program_name, 0,
2338 				_("%d-byte blocks too big for system (max %d)"),
2339 				blocksize, sys_page_size);
2340 			proceed_question(proceed_delay);
2341 		}
2342 		fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2343 				  "(max %d), forced to continue\n"),
2344 			blocksize, sys_page_size);
2345 	}
2346 
2347 	/* Metadata checksumming wasn't totally stable before 3.18. */
2348 	if (is_before_linux_ver(3, 18, 0) &&
2349 	    ext2fs_has_feature_metadata_csum(&fs_param))
2350 		fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2351 			"improved stability of the metadata and journal "
2352 			"checksum features.\n"));
2353 
2354 	/*
2355 	 * On newer kernels we do have lazy_itable_init support. So pick the
2356 	 * right default in case ext4 module is not loaded.
2357 	 */
2358 	if (is_before_linux_ver(2, 6, 37))
2359 		lazy_itable_init = 0;
2360 	else
2361 		lazy_itable_init = 1;
2362 
2363 	if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2364 		lazy_itable_init = 1;
2365 
2366 	lazy_itable_init = get_bool_from_profile(fs_types,
2367 						 "lazy_itable_init",
2368 						 lazy_itable_init);
2369 	discard = get_bool_from_profile(fs_types, "discard" , discard);
2370 	journal_flags |= get_bool_from_profile(fs_types,
2371 					       "lazy_journal_init", 0) ?
2372 					       EXT2_MKJOURNAL_LAZYINIT : 0;
2373 	journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2374 
2375 	if (!journal_location_string)
2376 		journal_location_string = get_string_from_profile(fs_types,
2377 						"journal_location", "");
2378 	if ((journal_location == ~0ULL) && journal_location_string &&
2379 	    *journal_location_string)
2380 		journal_location = parse_num_blocks2(journal_location_string,
2381 						fs_param.s_log_block_size);
2382 	free(journal_location_string);
2383 
2384 	packed_meta_blocks = get_bool_from_profile(fs_types,
2385 						   "packed_meta_blocks", 0);
2386 	if (packed_meta_blocks)
2387 		journal_location = 0;
2388 
2389 	if (ext2fs_has_feature_casefold(&fs_param)) {
2390 		char *ef, *en = get_string_from_profile(fs_types,
2391 							"encoding", "utf8");
2392 		int encoding = e2p_str2encoding(en);
2393 
2394 		if (encoding < 0) {
2395 			com_err(program_name, 0,
2396 				_("Unknown filename encoding from profile: %s"),
2397 				en);
2398 			exit(1);
2399 		}
2400 		free(en);
2401 		fs_param.s_encoding = encoding;
2402 		ef = get_string_from_profile(fs_types, "encoding_flags", NULL);
2403 		if (ef) {
2404 			if (e2p_str2encoding_flags(encoding, ef,
2405 					&fs_param.s_encoding_flags) < 0) {
2406 				com_err(program_name, 0,
2407 			_("Unknown encoding flags from profile: %s"), ef);
2408 				exit(1);
2409 			}
2410 			free(ef);
2411 		} else
2412 			fs_param.s_encoding_flags =
2413 				e2p_get_encoding_flags(encoding);
2414 	}
2415 
2416 	/* Get options from profile */
2417 	for (cpp = fs_types; *cpp; cpp++) {
2418 		tmp = NULL;
2419 		profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2420 			if (tmp && *tmp)
2421 				parse_extended_opts(&fs_param, tmp);
2422 			free(tmp);
2423 	}
2424 
2425 	if (extended_opts)
2426 		parse_extended_opts(&fs_param, extended_opts);
2427 
2428 	if (explicit_fssize == 0 && offset > 0) {
2429 		fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2430 		ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2431 		fprintf(stderr,
2432 			_("\nWarning: offset specified without an "
2433 			  "explicit file system size.\n"
2434 			  "Creating a file system with %llu blocks "
2435 			  "but this might\n"
2436 			  "not be what you want.\n\n"),
2437 			(unsigned long long) fs_blocks_count);
2438 	}
2439 
2440 	if (quotatype_bits & QUOTA_PRJ_BIT)
2441 		ext2fs_set_feature_project(&fs_param);
2442 
2443 	if (ext2fs_has_feature_project(&fs_param)) {
2444 		quotatype_bits |= QUOTA_PRJ_BIT;
2445 		if (inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2446 			com_err(program_name, 0,
2447 				_("%d byte inodes are too small for "
2448 				  "project quota"),
2449 				inode_size);
2450 			exit(1);
2451 		}
2452 		if (inode_size == 0) {
2453 			inode_size = get_int_from_profile(fs_types,
2454 							  "inode_size", 0);
2455 			if (inode_size <= EXT2_GOOD_OLD_INODE_SIZE*2)
2456 				inode_size = EXT2_GOOD_OLD_INODE_SIZE*2;
2457 		}
2458 	}
2459 
2460 	if (ext2fs_has_feature_casefold(&fs_param) &&
2461 	    ext2fs_has_feature_encrypt(&fs_param)) {
2462 		com_err(program_name, 0, "%s",
2463 			_("The encrypt and casefold features are not "
2464 			  "compatible.\nThey can not be both enabled "
2465 			  "simultaneously.\n"));
2466 		      exit (1);
2467 	}
2468 
2469 	/* Don't allow user to set both metadata_csum and uninit_bg bits. */
2470 	if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2471 	    ext2fs_has_feature_gdt_csum(&fs_param))
2472 		ext2fs_clear_feature_gdt_csum(&fs_param);
2473 
2474 	/* Can't support bigalloc feature without extents feature */
2475 	if (ext2fs_has_feature_bigalloc(&fs_param) &&
2476 	    !ext2fs_has_feature_extents(&fs_param)) {
2477 		com_err(program_name, 0, "%s",
2478 			_("Can't support bigalloc feature without "
2479 			  "extents feature"));
2480 		exit(1);
2481 	}
2482 
2483 	if (ext2fs_has_feature_meta_bg(&fs_param) &&
2484 	    ext2fs_has_feature_resize_inode(&fs_param)) {
2485 		fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2486 					"features are not compatible.\n"
2487 					"They can not be both enabled "
2488 					"simultaneously.\n"));
2489 		exit(1);
2490 	}
2491 
2492 	if (!quiet && ext2fs_has_feature_bigalloc(&fs_param))
2493 		fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
2494 				  "still under development\n"
2495 				  "See https://ext4.wiki.kernel.org/"
2496 				  "index.php/Bigalloc for more information\n\n"));
2497 
2498 	/*
2499 	 * Since sparse_super is the default, we would only have a problem
2500 	 * here if it was explicitly disabled.
2501 	 */
2502 	if (ext2fs_has_feature_resize_inode(&fs_param) &&
2503 	    !ext2fs_has_feature_sparse_super(&fs_param)) {
2504 		com_err(program_name, 0, "%s",
2505 			_("reserved online resize blocks not supported "
2506 			  "on non-sparse filesystem"));
2507 		exit(1);
2508 	}
2509 
2510 	if (fs_param.s_blocks_per_group) {
2511 		if (fs_param.s_blocks_per_group < 256 ||
2512 		    fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2513 			com_err(program_name, 0, "%s",
2514 				_("blocks per group count out of range"));
2515 			exit(1);
2516 		}
2517 	}
2518 
2519 	/*
2520 	 * If the bigalloc feature is enabled, then the -g option will
2521 	 * specify the number of clusters per group.
2522 	 */
2523 	if (ext2fs_has_feature_bigalloc(&fs_param)) {
2524 		fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2525 		fs_param.s_blocks_per_group = 0;
2526 	}
2527 
2528 	if (inode_size == 0)
2529 		inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2530 	if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2531 		flex_bg_size = get_uint_from_profile(fs_types,
2532 						     "flex_bg_size", 16);
2533 	if (flex_bg_size) {
2534 		if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2535 			com_err(program_name, 0, "%s",
2536 				_("Flex_bg feature not enabled, so "
2537 				  "flex_bg size may not be specified"));
2538 			exit(1);
2539 		}
2540 		fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2541 	}
2542 
2543 	if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2544 		if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2545 		    inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2546 		    inode_size & (inode_size - 1)) {
2547 			com_err(program_name, 0,
2548 				_("invalid inode size %d (min %d/max %d)"),
2549 				inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2550 				blocksize);
2551 			exit(1);
2552 		}
2553 		fs_param.s_inode_size = inode_size;
2554 	}
2555 
2556 	/*
2557 	 * If inode size is 128 and inline data is enabled, we need
2558 	 * to notify users that inline data will never be useful.
2559 	 */
2560 	if (ext2fs_has_feature_inline_data(&fs_param) &&
2561 	    fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2562 		com_err(program_name, 0,
2563 			_("%d byte inodes are too small for inline data; "
2564 			  "specify larger size"),
2565 			fs_param.s_inode_size);
2566 		exit(1);
2567 	}
2568 
2569 	/* Make sure number of inodes specified will fit in 32 bits */
2570 	if (num_inodes == 0) {
2571 		unsigned long long n;
2572 		n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2573 		if (n > MAX_32_NUM) {
2574 			if (ext2fs_has_feature_64bit(&fs_param))
2575 				num_inodes = MAX_32_NUM;
2576 			else {
2577 				com_err(program_name, 0,
2578 					_("too many inodes (%llu), raise "
2579 					  "inode ratio?"), n);
2580 				exit(1);
2581 			}
2582 		}
2583 	} else if (num_inodes > MAX_32_NUM) {
2584 		com_err(program_name, 0,
2585 			_("too many inodes (%llu), specify < 2^32 inodes"),
2586 			  num_inodes);
2587 		exit(1);
2588 	}
2589 	/*
2590 	 * Calculate number of inodes based on the inode ratio
2591 	 */
2592 	fs_param.s_inodes_count = num_inodes ? num_inodes :
2593 		(ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2594 
2595 	if ((((unsigned long long)fs_param.s_inodes_count) *
2596 	     (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2597 	    ((ext2fs_blocks_count(&fs_param)) *
2598 	     EXT2_BLOCK_SIZE(&fs_param))) {
2599 		com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2600 					  "(%u) too big for a\n\t"
2601 					  "filesystem with %llu blocks, "
2602 					  "specify higher inode_ratio (-i)\n\t"
2603 					  "or lower inode count (-N).\n"),
2604 			inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2605 			fs_param.s_inodes_count,
2606 			(unsigned long long) ext2fs_blocks_count(&fs_param));
2607 		exit(1);
2608 	}
2609 
2610 	/*
2611 	 * Calculate number of blocks to reserve
2612 	 */
2613 	ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2614 				  ext2fs_blocks_count(&fs_param) / 100.0);
2615 
2616 	if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2617 		if (num_backups >= 1)
2618 			fs_param.s_backup_bgs[0] = 1;
2619 		if (num_backups >= 2)
2620 			fs_param.s_backup_bgs[1] = ~0;
2621 	}
2622 
2623 	free(fs_type);
2624 	free(usage_types);
2625 }
2626 
should_do_undo(const char * name)2627 static int should_do_undo(const char *name)
2628 {
2629 	errcode_t retval;
2630 	io_channel channel;
2631 	__u16	s_magic;
2632 	struct ext2_super_block super;
2633 	io_manager manager = unix_io_manager;
2634 	int csum_flag, force_undo;
2635 
2636 	csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2637 		    ext2fs_has_feature_gdt_csum(&fs_param);
2638 	force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2639 	if (!force_undo && (!csum_flag || !lazy_itable_init))
2640 		return 0;
2641 
2642 	retval = manager->open(name, IO_FLAG_EXCLUSIVE,  &channel);
2643 	if (retval) {
2644 		/*
2645 		 * We don't handle error cases instead we
2646 		 * declare that the file system doesn't exist
2647 		 * and let the rest of mke2fs take care of
2648 		 * error
2649 		 */
2650 		retval = 0;
2651 		goto open_err_out;
2652 	}
2653 
2654 	io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2655 	retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2656 	if (retval) {
2657 		retval = 0;
2658 		goto err_out;
2659 	}
2660 
2661 #if defined(WORDS_BIGENDIAN)
2662 	s_magic = ext2fs_swab16(super.s_magic);
2663 #else
2664 	s_magic = super.s_magic;
2665 #endif
2666 
2667 	if (s_magic == EXT2_SUPER_MAGIC)
2668 		retval = 1;
2669 
2670 err_out:
2671 	io_channel_close(channel);
2672 
2673 open_err_out:
2674 
2675 	return retval;
2676 }
2677 
mke2fs_setup_tdb(const char * name,io_manager * io_ptr)2678 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2679 {
2680 	errcode_t retval = ENOMEM;
2681 	char *tdb_dir = NULL, *tdb_file = NULL;
2682 	char *dev_name, *tmp_name;
2683 	int free_tdb_dir = 0;
2684 
2685 	/* (re)open a specific undo file */
2686 	if (undo_file && undo_file[0] != 0) {
2687 		retval = set_undo_io_backing_manager(*io_ptr);
2688 		if (retval)
2689 			goto err;
2690 		*io_ptr = undo_io_manager;
2691 		retval = set_undo_io_backup_file(undo_file);
2692 		if (retval)
2693 			goto err;
2694 		printf(_("Overwriting existing filesystem; this can be undone "
2695 			 "using the command:\n"
2696 			 "    e2undo %s %s\n\n"), undo_file, name);
2697 		return retval;
2698 	}
2699 
2700 	/*
2701 	 * Configuration via a conf file would be
2702 	 * nice
2703 	 */
2704 	tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2705 	if (!tdb_dir) {
2706 		profile_get_string(profile, "defaults",
2707 				   "undo_dir", 0, "/var/lib/e2fsprogs",
2708 				   &tdb_dir);
2709 		free_tdb_dir = 1;
2710 	}
2711 
2712 	if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2713 	    access(tdb_dir, W_OK)) {
2714 		if (free_tdb_dir)
2715 			free(tdb_dir);
2716 		return 0;
2717 	}
2718 
2719 	tmp_name = strdup(name);
2720 	if (!tmp_name)
2721 		goto errout;
2722 	dev_name = basename(tmp_name);
2723 	tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2724 	if (!tdb_file) {
2725 		free(tmp_name);
2726 		goto errout;
2727 	}
2728 	sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2729 	free(tmp_name);
2730 
2731 	if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2732 		retval = errno;
2733 		com_err(program_name, retval,
2734 			_("while trying to delete %s"), tdb_file);
2735 		goto errout;
2736 	}
2737 
2738 	retval = set_undo_io_backing_manager(*io_ptr);
2739 	if (retval)
2740 		goto errout;
2741 	*io_ptr = undo_io_manager;
2742 	retval = set_undo_io_backup_file(tdb_file);
2743 	if (retval)
2744 		goto errout;
2745 	printf(_("Overwriting existing filesystem; this can be undone "
2746 		 "using the command:\n"
2747 		 "    e2undo %s %s\n\n"), tdb_file, name);
2748 
2749 	if (free_tdb_dir)
2750 		free(tdb_dir);
2751 	free(tdb_file);
2752 	return 0;
2753 
2754 errout:
2755 	if (free_tdb_dir)
2756 		free(tdb_dir);
2757 	free(tdb_file);
2758 err:
2759 	com_err(program_name, retval, "%s",
2760 		_("while trying to setup undo file\n"));
2761 	return retval;
2762 }
2763 
mke2fs_discard_device(ext2_filsys fs)2764 static int mke2fs_discard_device(ext2_filsys fs)
2765 {
2766 	struct ext2fs_numeric_progress_struct progress;
2767 	blk64_t blocks = ext2fs_blocks_count(fs->super);
2768 	blk64_t count = DISCARD_STEP_MB;
2769 	blk64_t cur;
2770 	int retval = 0;
2771 
2772 	/*
2773 	 * Let's try if discard really works on the device, so
2774 	 * we do not print numeric progress resulting in failure
2775 	 * afterwards.
2776 	 */
2777 	retval = io_channel_discard(fs->io, 0, fs->blocksize);
2778 	if (retval)
2779 		return retval;
2780 	cur = fs->blocksize;
2781 
2782 	count *= (1024 * 1024);
2783 	count /= fs->blocksize;
2784 
2785 	ext2fs_numeric_progress_init(fs, &progress,
2786 				     _("Discarding device blocks: "),
2787 				     blocks);
2788 	while (cur < blocks) {
2789 		ext2fs_numeric_progress_update(fs, &progress, cur);
2790 
2791 		if (cur + count > blocks)
2792 			count = blocks - cur;
2793 
2794 		retval = io_channel_discard(fs->io, cur, count);
2795 		if (retval)
2796 			break;
2797 		cur += count;
2798 	}
2799 
2800 	if (retval) {
2801 		ext2fs_numeric_progress_close(fs, &progress,
2802 				      _("failed - "));
2803 		if (!quiet)
2804 			printf("%s\n",error_message(retval));
2805 	} else
2806 		ext2fs_numeric_progress_close(fs, &progress,
2807 				      _("done                            \n"));
2808 
2809 	return retval;
2810 }
2811 
fix_cluster_bg_counts(ext2_filsys fs)2812 static void fix_cluster_bg_counts(ext2_filsys fs)
2813 {
2814 	blk64_t		block, num_blocks, last_block, next;
2815 	blk64_t		tot_free = 0;
2816 	errcode_t	retval;
2817 	dgrp_t		group = 0;
2818 	int		grp_free = 0;
2819 
2820 	num_blocks = ext2fs_blocks_count(fs->super);
2821 	last_block = ext2fs_group_last_block2(fs, group);
2822 	block = fs->super->s_first_data_block;
2823 	while (block < num_blocks) {
2824 		retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2825 						block, last_block, &next);
2826 		if (retval == 0)
2827 			block = next;
2828 		else {
2829 			block = last_block + 1;
2830 			goto next_bg;
2831 		}
2832 
2833 		retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2834 						block, last_block, &next);
2835 		if (retval)
2836 			next = last_block + 1;
2837 		grp_free += EXT2FS_NUM_B2C(fs, next - block);
2838 		tot_free += next - block;
2839 		block = next;
2840 
2841 		if (block > last_block) {
2842 		next_bg:
2843 			ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2844 			ext2fs_group_desc_csum_set(fs, group);
2845 			grp_free = 0;
2846 			group++;
2847 			last_block = ext2fs_group_last_block2(fs, group);
2848 		}
2849 	}
2850 	ext2fs_free_blocks_count_set(fs->super, tot_free);
2851 }
2852 
create_quota_inodes(ext2_filsys fs)2853 static int create_quota_inodes(ext2_filsys fs)
2854 {
2855 	quota_ctx_t qctx;
2856 	errcode_t retval;
2857 
2858 	retval = quota_init_context(&qctx, fs, quotatype_bits);
2859 	if (retval) {
2860 		com_err(program_name, retval,
2861 			_("while initializing quota context"));
2862 		exit(1);
2863 	}
2864 	quota_compute_usage(qctx);
2865 	retval = quota_write_inode(qctx, quotatype_bits);
2866 	if (retval) {
2867 		com_err(program_name, retval,
2868 			_("while writing quota inodes"));
2869 		exit(1);
2870 	}
2871 	quota_release_context(&qctx);
2872 
2873 	return 0;
2874 }
2875 
set_error_behavior(ext2_filsys fs)2876 static errcode_t set_error_behavior(ext2_filsys fs)
2877 {
2878 	char	*arg = NULL;
2879 	short	errors = fs->super->s_errors;
2880 
2881 	arg = get_string_from_profile(fs_types, "errors", NULL);
2882 	if (arg == NULL)
2883 		goto try_user;
2884 
2885 	if (strcmp(arg, "continue") == 0)
2886 		errors = EXT2_ERRORS_CONTINUE;
2887 	else if (strcmp(arg, "remount-ro") == 0)
2888 		errors = EXT2_ERRORS_RO;
2889 	else if (strcmp(arg, "panic") == 0)
2890 		errors = EXT2_ERRORS_PANIC;
2891 	else {
2892 		com_err(program_name, 0,
2893 			_("bad error behavior in profile - %s"),
2894 			arg);
2895 		free(arg);
2896 		return EXT2_ET_INVALID_ARGUMENT;
2897 	}
2898 	free(arg);
2899 
2900 try_user:
2901 	if (errors_behavior)
2902 		errors = errors_behavior;
2903 
2904 	fs->super->s_errors = errors;
2905 	return 0;
2906 }
2907 
main(int argc,char * argv[])2908 int main (int argc, char *argv[])
2909 {
2910 	errcode_t	retval = 0;
2911 	ext2_filsys	fs;
2912 	badblocks_list	bb_list = 0;
2913 	unsigned int	journal_blocks = 0;
2914 	unsigned int	i, checkinterval;
2915 	int		max_mnt_count;
2916 	int		val, hash_alg;
2917 	int		flags;
2918 	int		old_bitmaps;
2919 	io_manager	io_ptr;
2920 	char		opt_string[40];
2921 	char		*hash_alg_str;
2922 	int		itable_zeroed = 0;
2923 
2924 #ifdef ENABLE_NLS
2925 	setlocale(LC_MESSAGES, "");
2926 	setlocale(LC_CTYPE, "");
2927 	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2928 	textdomain(NLS_CAT_NAME);
2929 	set_com_err_gettext(gettext);
2930 #endif
2931 	PRS(argc, argv);
2932 
2933 #ifdef CONFIG_TESTIO_DEBUG
2934 	if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2935 		io_ptr = test_io_manager;
2936 		test_io_backing_manager = unix_io_manager;
2937 	} else
2938 #endif
2939 		io_ptr = unix_io_manager;
2940 
2941 	if (undo_file != NULL || should_do_undo(device_name)) {
2942 		retval = mke2fs_setup_tdb(device_name, &io_ptr);
2943 		if (retval)
2944 			exit(1);
2945 	}
2946 
2947 	/*
2948 	 * Initialize the superblock....
2949 	 */
2950 	flags = EXT2_FLAG_EXCLUSIVE;
2951 	if (direct_io)
2952 		flags |= EXT2_FLAG_DIRECT_IO;
2953 	profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
2954 			    &old_bitmaps);
2955 	if (!old_bitmaps)
2956 		flags |= EXT2_FLAG_64BITS;
2957 	/*
2958 	 * By default, we print how many inode tables or block groups
2959 	 * or whatever we've written so far.  The quiet flag disables
2960 	 * this, along with a lot of other output.
2961 	 */
2962 	if (!quiet)
2963 		flags |= EXT2_FLAG_PRINT_PROGRESS;
2964 	if (android_sparse_file) {
2965 		char *android_sparse_params = malloc(strlen(device_name) + 48);
2966 
2967 		if (!android_sparse_params) {
2968 			com_err(program_name, ENOMEM, "%s",
2969 				_("in malloc for android_sparse_params"));
2970 			exit(1);
2971 		}
2972 		sprintf(android_sparse_params, "(%s):%u:%u",
2973 			 device_name, fs_param.s_blocks_count,
2974 			 1024 << fs_param.s_log_block_size);
2975 		retval = ext2fs_initialize(android_sparse_params, flags,
2976 					   &fs_param, sparse_io_manager, &fs);
2977 		free(android_sparse_params);
2978 	} else
2979 		retval = ext2fs_initialize(device_name, flags, &fs_param,
2980 					   io_ptr, &fs);
2981 	if (retval) {
2982 		com_err(device_name, retval, "%s",
2983 			_("while setting up superblock"));
2984 		exit(1);
2985 	}
2986 	fs->progress_ops = &ext2fs_numeric_progress_ops;
2987 
2988 	/* Set the error behavior */
2989 	retval = set_error_behavior(fs);
2990 	if (retval)
2991 		usage();
2992 
2993 	/* Check the user's mkfs options for metadata checksumming */
2994 	if (!quiet &&
2995 	    !ext2fs_has_feature_journal_dev(fs->super) &&
2996 	    ext2fs_has_feature_metadata_csum(fs->super)) {
2997 		if (!ext2fs_has_feature_extents(fs->super))
2998 			printf("%s",
2999 			       _("Extents are not enabled.  The file extent "
3000 				 "tree can be checksummed, whereas block maps "
3001 				 "cannot.  Not enabling extents reduces the "
3002 				 "coverage of metadata checksumming.  "
3003 				 "Pass -O extents to rectify.\n"));
3004 		if (!ext2fs_has_feature_64bit(fs->super))
3005 			printf("%s",
3006 			       _("64-bit filesystem support is not enabled.  "
3007 				 "The larger fields afforded by this feature "
3008 				 "enable full-strength checksumming.  "
3009 				 "Pass -O 64bit to rectify.\n"));
3010 	}
3011 
3012 	if (ext2fs_has_feature_csum_seed(fs->super) &&
3013 	    !ext2fs_has_feature_metadata_csum(fs->super)) {
3014 		printf("%s", _("The metadata_csum_seed feature "
3015 			       "requires the metadata_csum feature.\n"));
3016 		exit(1);
3017 	}
3018 
3019 	/* Calculate journal blocks */
3020 	if (!journal_device && ((journal_size) ||
3021 	    ext2fs_has_feature_journal(&fs_param)))
3022 		journal_blocks = figure_journal_size(journal_size, fs);
3023 
3024 	sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
3025 		32768 : fs->blocksize * 8);
3026 	io_channel_set_options(fs->io, opt_string);
3027 	if (offset) {
3028 		sprintf(opt_string, "offset=%llu", offset);
3029 		io_channel_set_options(fs->io, opt_string);
3030 	}
3031 
3032 	/* Can't undo discard ... */
3033 	if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
3034 		retval = mke2fs_discard_device(fs);
3035 		if (!retval && io_channel_discard_zeroes_data(fs->io)) {
3036 			if (verbose)
3037 				printf("%s",
3038 				       _("Discard succeeded and will return "
3039 					 "0s - skipping inode table wipe\n"));
3040 			lazy_itable_init = 1;
3041 			itable_zeroed = 1;
3042 			zero_hugefile = 0;
3043 		}
3044 	}
3045 
3046 	if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
3047 		fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
3048 
3049 	if (ext2fs_has_feature_flex_bg(&fs_param) ||
3050 	    ext2fs_has_feature_huge_file(&fs_param) ||
3051 	    ext2fs_has_feature_gdt_csum(&fs_param) ||
3052 	    ext2fs_has_feature_dir_nlink(&fs_param) ||
3053 	    ext2fs_has_feature_metadata_csum(&fs_param) ||
3054 	    ext2fs_has_feature_extra_isize(&fs_param))
3055 		fs->super->s_kbytes_written = 1;
3056 
3057 	/*
3058 	 * Wipe out the old on-disk superblock
3059 	 */
3060 	if (!noaction)
3061 		zap_sector(fs, 2, 6);
3062 
3063 	/*
3064 	 * Parse or generate a UUID for the filesystem
3065 	 */
3066 	if (fs_uuid) {
3067 		if ((strcasecmp(fs_uuid, "null") == 0) ||
3068 		    (strcasecmp(fs_uuid, "clear") == 0)) {
3069 			uuid_clear(fs->super->s_uuid);
3070 		} else if (strcasecmp(fs_uuid, "time") == 0) {
3071 			uuid_generate_time(fs->super->s_uuid);
3072 		} else if (strcasecmp(fs_uuid, "random") == 0) {
3073 			uuid_generate(fs->super->s_uuid);
3074 		} else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
3075 			com_err(device_name, 0, "could not parse UUID: %s\n",
3076 				fs_uuid);
3077 			exit(1);
3078 		}
3079 	} else
3080 		uuid_generate(fs->super->s_uuid);
3081 
3082 	if (ext2fs_has_feature_csum_seed(fs->super))
3083 		fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
3084 				fs->super->s_uuid, sizeof(fs->super->s_uuid));
3085 
3086 	ext2fs_init_csum_seed(fs);
3087 
3088 	/*
3089 	 * Initialize the directory index variables
3090 	 */
3091 	hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
3092 					       "half_md4");
3093 	hash_alg = e2p_string2hash(hash_alg_str);
3094 	free(hash_alg_str);
3095 	fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
3096 		EXT2_HASH_HALF_MD4;
3097 
3098 	if (memcmp(fs_param.s_hash_seed, zero_buf,
3099 		sizeof(fs_param.s_hash_seed)) != 0) {
3100 		memcpy(fs->super->s_hash_seed, fs_param.s_hash_seed,
3101 			sizeof(fs->super->s_hash_seed));
3102 	} else
3103 		uuid_generate((unsigned char *) fs->super->s_hash_seed);
3104 
3105 	/*
3106 	 * Periodic checks can be enabled/disabled via config file.
3107 	 * Note we override the kernel include file's idea of what the default
3108 	 * check interval (never) should be.  It's a good idea to check at
3109 	 * least *occasionally*, specially since servers will never rarely get
3110 	 * to reboot, since Linux is so robust these days.  :-)
3111 	 *
3112 	 * 180 days (six months) seems like a good value.
3113 	 */
3114 #ifdef EXT2_DFL_CHECKINTERVAL
3115 #undef EXT2_DFL_CHECKINTERVAL
3116 #endif
3117 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
3118 
3119 	if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
3120 		fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
3121 		fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
3122 		/*
3123 		 * Add "jitter" to the superblock's check interval so that we
3124 		 * don't check all the filesystems at the same time.  We use a
3125 		 * kludgy hack of using the UUID to derive a random jitter value
3126 		 */
3127 		for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
3128 			val += fs->super->s_uuid[i];
3129 		fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
3130 	} else
3131 		fs->super->s_max_mnt_count = -1;
3132 
3133 	/*
3134 	 * Override the creator OS, if applicable
3135 	 */
3136 	if (creator_os && !set_os(fs->super, creator_os)) {
3137 		com_err (program_name, 0, _("unknown os - %s"), creator_os);
3138 		exit(1);
3139 	}
3140 
3141 	/*
3142 	 * For the Hurd, we will turn off filetype since it doesn't
3143 	 * support it.
3144 	 */
3145 	if (fs->super->s_creator_os == EXT2_OS_HURD)
3146 		ext2fs_clear_feature_filetype(fs->super);
3147 
3148 	/*
3149 	 * Set the volume label...
3150 	 */
3151 	if (volume_label) {
3152 		memset(fs->super->s_volume_name, 0,
3153 		       sizeof(fs->super->s_volume_name));
3154 		strncpy(fs->super->s_volume_name, volume_label,
3155 			sizeof(fs->super->s_volume_name));
3156 	}
3157 
3158 	/*
3159 	 * Set the last mount directory
3160 	 */
3161 	if (mount_dir) {
3162 		memset(fs->super->s_last_mounted, 0,
3163 		       sizeof(fs->super->s_last_mounted));
3164 		strncpy(fs->super->s_last_mounted, mount_dir,
3165 			sizeof(fs->super->s_last_mounted));
3166 	}
3167 
3168 	/* Set current default encryption algorithms for data and
3169 	 * filename encryption */
3170 	if (ext2fs_has_feature_encrypt(fs->super)) {
3171 		fs->super->s_encrypt_algos[0] =
3172 			EXT4_ENCRYPTION_MODE_AES_256_XTS;
3173 		fs->super->s_encrypt_algos[1] =
3174 			EXT4_ENCRYPTION_MODE_AES_256_CTS;
3175 	}
3176 
3177 	if (ext2fs_has_feature_metadata_csum(fs->super))
3178 		fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3179 
3180 	if (!quiet || noaction)
3181 		show_stats(fs);
3182 
3183 	if (noaction)
3184 		exit(0);
3185 
3186 	if (ext2fs_has_feature_journal_dev(fs->super)) {
3187 		create_journal_dev(fs);
3188 		printf("\n");
3189 		exit(ext2fs_close_free(&fs) ? 1 : 0);
3190 	}
3191 
3192 	if (bad_blocks_filename)
3193 		read_bb_file(fs, &bb_list, bad_blocks_filename);
3194 	if (cflag)
3195 		test_disk(fs, &bb_list);
3196 	handle_bad_blocks(fs, bb_list);
3197 
3198 	fs->stride = fs_stride = fs->super->s_raid_stride;
3199 	if (!quiet)
3200 		printf("%s", _("Allocating group tables: "));
3201 	if (ext2fs_has_feature_flex_bg(fs->super) &&
3202 	    packed_meta_blocks)
3203 		retval = packed_allocate_tables(fs);
3204 	else
3205 		retval = ext2fs_allocate_tables(fs);
3206 	if (retval) {
3207 		com_err(program_name, retval, "%s",
3208 			_("while trying to allocate filesystem tables"));
3209 		exit(1);
3210 	}
3211 	if (!quiet)
3212 		printf("%s", _("done                            \n"));
3213 
3214 	retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3215 	if (retval) {
3216 		com_err(program_name, retval, "%s",
3217 			_("\n\twhile converting subcluster bitmap"));
3218 		exit(1);
3219 	}
3220 
3221 	if (super_only) {
3222 		check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3223 		printf(_("%s may be further corrupted by superblock rewrite\n"),
3224 		       device_name);
3225 		if (!force)
3226 			proceed_question(proceed_delay);
3227 		fs->super->s_state |= EXT2_ERROR_FS;
3228 		fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3229 		/*
3230 		 * The command "mke2fs -S" is used to recover
3231 		 * corrupted file systems, so do not mark any of the
3232 		 * inodes as unused; we want e2fsck to consider all
3233 		 * inodes as potentially containing recoverable data.
3234 		 */
3235 		if (ext2fs_has_group_desc_csum(fs)) {
3236 			for (i = 0; i < fs->group_desc_count; i++)
3237 				ext2fs_bg_itable_unused_set(fs, i, 0);
3238 		}
3239 	} else {
3240 		/* rsv must be a power of two (64kB is MD RAID sb alignment) */
3241 		blk64_t rsv = 65536 / fs->blocksize;
3242 		blk64_t blocks = ext2fs_blocks_count(fs->super);
3243 		blk64_t start;
3244 		blk64_t ret_blk;
3245 
3246 #ifdef ZAP_BOOTBLOCK
3247 		zap_sector(fs, 0, 2);
3248 #endif
3249 
3250 		/*
3251 		 * Wipe out any old MD RAID (or other) metadata at the end
3252 		 * of the device.  This will also verify that the device is
3253 		 * as large as we think.  Be careful with very small devices.
3254 		 */
3255 		start = (blocks & ~(rsv - 1));
3256 		if (start > rsv)
3257 			start -= rsv;
3258 		if (start > 0)
3259 			retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3260 						    &ret_blk, NULL);
3261 
3262 		if (retval) {
3263 			com_err(program_name, retval,
3264 				_("while zeroing block %llu at end of filesystem"),
3265 				ret_blk);
3266 		}
3267 		write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3268 		create_root_dir(fs);
3269 		create_lost_and_found(fs);
3270 		reserve_inodes(fs);
3271 		create_bad_block_inode(fs, bb_list);
3272 		if (ext2fs_has_feature_resize_inode(fs->super)) {
3273 			retval = ext2fs_create_resize_inode(fs);
3274 			if (retval) {
3275 				com_err("ext2fs_create_resize_inode", retval,
3276 					"%s",
3277 				_("while reserving blocks for online resize"));
3278 				exit(1);
3279 			}
3280 		}
3281 	}
3282 
3283 	if (journal_device) {
3284 		ext2_filsys	jfs;
3285 
3286 		if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3287 					NULL) && !force)
3288 			proceed_question(proceed_delay);
3289 		check_mount(journal_device, force, _("journal"));
3290 
3291 		retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3292 				     EXT2_FLAG_JOURNAL_DEV_OK, 0,
3293 				     fs->blocksize, unix_io_manager, &jfs);
3294 		if (retval) {
3295 			com_err(program_name, retval,
3296 				_("while trying to open journal device %s\n"),
3297 				journal_device);
3298 			exit(1);
3299 		}
3300 		if (!quiet) {
3301 			printf(_("Adding journal to device %s: "),
3302 			       journal_device);
3303 			fflush(stdout);
3304 		}
3305 		retval = ext2fs_add_journal_device(fs, jfs);
3306 		if(retval) {
3307 			com_err (program_name, retval,
3308 				 _("\n\twhile trying to add journal to device %s"),
3309 				 journal_device);
3310 			exit(1);
3311 		}
3312 		if (!quiet)
3313 			printf("%s", _("done\n"));
3314 		ext2fs_close_free(&jfs);
3315 		free(journal_device);
3316 	} else if ((journal_size) ||
3317 		   ext2fs_has_feature_journal(&fs_param)) {
3318 		if (super_only) {
3319 			printf("%s", _("Skipping journal creation in super-only mode\n"));
3320 			fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3321 			goto no_journal;
3322 		}
3323 
3324 		if (!journal_blocks) {
3325 			ext2fs_clear_feature_journal(fs->super);
3326 			goto no_journal;
3327 		}
3328 		if (!quiet) {
3329 			printf(_("Creating journal (%u blocks): "),
3330 			       journal_blocks);
3331 			fflush(stdout);
3332 		}
3333 		retval = ext2fs_add_journal_inode2(fs, journal_blocks,
3334 						   journal_location,
3335 						   journal_flags);
3336 		if (retval) {
3337 			com_err(program_name, retval, "%s",
3338 				_("\n\twhile trying to create journal"));
3339 			exit(1);
3340 		}
3341 		if (!quiet)
3342 			printf("%s", _("done\n"));
3343 	}
3344 no_journal:
3345 	if (!super_only &&
3346 	    ext2fs_has_feature_mmp(fs->super)) {
3347 		retval = ext2fs_mmp_init(fs);
3348 		if (retval) {
3349 			fprintf(stderr, "%s",
3350 				_("\nError while enabling multiple "
3351 				  "mount protection feature."));
3352 			exit(1);
3353 		}
3354 		if (!quiet)
3355 			printf(_("Multiple mount protection is enabled "
3356 				 "with update interval %d seconds.\n"),
3357 			       fs->super->s_mmp_update_interval);
3358 	}
3359 
3360 	if (ext2fs_has_feature_bigalloc(&fs_param))
3361 		fix_cluster_bg_counts(fs);
3362 	if (ext2fs_has_feature_quota(&fs_param))
3363 		create_quota_inodes(fs);
3364 
3365 	retval = mk_hugefiles(fs, device_name);
3366 	if (retval)
3367 		com_err(program_name, retval, "while creating huge files");
3368 	/* Copy files from the specified directory */
3369 	if (src_root_dir) {
3370 		if (!quiet)
3371 			printf("%s", _("Copying files into the device: "));
3372 
3373 		retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3374 				     EXT2_ROOT_INO);
3375 		if (retval) {
3376 			com_err(program_name, retval, "%s",
3377 				_("while populating file system"));
3378 			exit(1);
3379 		} else if (!quiet)
3380 			printf("%s", _("done\n"));
3381 	}
3382 
3383 	if (!quiet)
3384 		printf("%s", _("Writing superblocks and "
3385 		       "filesystem accounting information: "));
3386 	checkinterval = fs->super->s_checkinterval;
3387 	max_mnt_count = fs->super->s_max_mnt_count;
3388 	retval = ext2fs_close_free(&fs);
3389 	if (retval) {
3390 		com_err(program_name, retval, "%s",
3391 			_("while writing out and closing file system"));
3392 		retval = 1;
3393 	} else if (!quiet) {
3394 		printf("%s", _("done\n\n"));
3395 		if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3396 			print_check_message(max_mnt_count, checkinterval);
3397 	}
3398 
3399 	remove_error_table(&et_ext2_error_table);
3400 	remove_error_table(&et_prof_error_table);
3401 	profile_release(profile);
3402 	for (i=0; fs_types[i]; i++)
3403 		free(fs_types[i]);
3404 	free(fs_types);
3405 	return retval;
3406 }
3407