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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 int	journal_fc_size;
97 static int	lazy_itable_init;
98 static int	packed_meta_blocks;
99 int		no_copy_xattrs;
100 static char	*bad_blocks_filename = NULL;
101 static __u32	fs_stride;
102 /* Initialize usr/grp quotas by default */
103 static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
104 static __u64	offset;
105 static blk64_t journal_location = ~0LL;
106 static int	proceed_delay = -1;
107 static blk64_t	dev_size;
108 
109 static struct ext2_super_block fs_param;
110 static __u32 zero_buf[4];
111 static char *fs_uuid = NULL;
112 static char *creator_os;
113 static char *volume_label;
114 static char *mount_dir;
115 char *journal_device;
116 static int sync_kludge;	/* Set using the MKE2FS_SYNC env. option */
117 char **fs_types;
118 const char *src_root_dir;  /* Copy files from the specified directory */
119 static char *undo_file;
120 
121 static int android_sparse_file; /* -E android_sparse */
122 
123 static profile_t	profile;
124 
125 static int sys_page_size = 4096;
126 
127 static int errors_behavior = 0;
128 
usage(void)129 static void usage(void)
130 {
131 	fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
132 	"[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
133 	"[-J journal-options]\n"
134 	"\t[-G flex-group-size] [-N number-of-inodes] "
135 	"[-d root-directory]\n"
136 	"\t[-m reserved-blocks-percentage] [-o creator-os]\n"
137 	"\t[-g blocks-per-group] [-L volume-label] "
138 	"[-M last-mounted-directory]\n\t[-O feature[,...]] "
139 	"[-r fs-revision] [-E extended-option[,...]]\n"
140 	"\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
141 	"[-z undo_file]\n"
142 	"\t[-jnqvDFSV] device [blocks-count]\n"),
143 		program_name);
144 	exit(1);
145 }
146 
int_log2(unsigned long long arg)147 static int int_log2(unsigned long long arg)
148 {
149 	int	l = 0;
150 
151 	arg >>= 1;
152 	while (arg) {
153 		l++;
154 		arg >>= 1;
155 	}
156 	return l;
157 }
158 
int_log10(unsigned long long arg)159 int int_log10(unsigned long long arg)
160 {
161 	int	l;
162 
163 	for (l=0; arg ; l++)
164 		arg = arg / 10;
165 	return l;
166 }
167 
168 #ifdef __linux__
parse_version_number(const char * s)169 static int parse_version_number(const char *s)
170 {
171 	int	major, minor, rev;
172 	char	*endptr;
173 	const char *cp = s;
174 
175 	if (!s)
176 		return 0;
177 	major = strtol(cp, &endptr, 10);
178 	if (cp == endptr || *endptr != '.')
179 		return 0;
180 	cp = endptr + 1;
181 	minor = strtol(cp, &endptr, 10);
182 	if (cp == endptr || *endptr != '.')
183 		return 0;
184 	cp = endptr + 1;
185 	rev = strtol(cp, &endptr, 10);
186 	if (cp == endptr)
187 		return 0;
188 	return KERNEL_VERSION(major, minor, rev);
189 }
190 
is_before_linux_ver(unsigned int major,unsigned int minor,unsigned int rev)191 static int is_before_linux_ver(unsigned int major, unsigned int minor,
192 			       unsigned int rev)
193 {
194 	struct		utsname ut;
195 	static int	linux_version_code = -1;
196 
197 	if (uname(&ut)) {
198 		perror("uname");
199 		exit(1);
200 	}
201 	if (linux_version_code < 0)
202 		linux_version_code = parse_version_number(ut.release);
203 	if (linux_version_code == 0)
204 		return 0;
205 
206 	return linux_version_code < (int) KERNEL_VERSION(major, minor, rev);
207 }
208 #else
is_before_linux_ver(unsigned int major,unsigned int minor,unsigned int rev)209 static int is_before_linux_ver(unsigned int major, unsigned int minor,
210 			       unsigned int rev)
211 {
212 	return 0;
213 }
214 #endif
215 
216 /*
217  * Helper function for read_bb_file and test_disk
218  */
invalid_block(ext2_filsys fs EXT2FS_ATTR ((unused)),blk_t blk)219 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
220 {
221 	fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
222 	return;
223 }
224 
225 /*
226  * Reads the bad blocks list from a file
227  */
read_bb_file(ext2_filsys fs,badblocks_list * bb_list,const char * bad_blocks_file)228 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
229 			 const char *bad_blocks_file)
230 {
231 	FILE		*f;
232 	errcode_t	retval;
233 
234 	f = fopen(bad_blocks_file, "r");
235 	if (!f) {
236 		com_err("read_bad_blocks_file", errno,
237 			_("while trying to open %s"), bad_blocks_file);
238 		exit(1);
239 	}
240 	retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
241 	fclose (f);
242 	if (retval) {
243 		com_err("ext2fs_read_bb_FILE", retval, "%s",
244 			_("while reading in list of bad blocks from file"));
245 		exit(1);
246 	}
247 }
248 
249 /*
250  * Runs the badblocks program to test the disk
251  */
test_disk(ext2_filsys fs,badblocks_list * bb_list)252 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
253 {
254 	FILE		*f;
255 	errcode_t	retval;
256 	char		buf[1024];
257 
258 	sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
259 		quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
260 		fs->device_name,
261 		(unsigned long long) ext2fs_blocks_count(fs->super)-1);
262 	if (verbose)
263 		printf(_("Running command: %s\n"), buf);
264 	f = popen(buf, "r");
265 	if (!f) {
266 		com_err("popen", errno,
267 			_("while trying to run '%s'"), buf);
268 		exit(1);
269 	}
270 	retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
271 	pclose(f);
272 	if (retval) {
273 		com_err("ext2fs_read_bb_FILE", retval, "%s",
274 			_("while processing list of bad blocks from program"));
275 		exit(1);
276 	}
277 }
278 
handle_bad_blocks(ext2_filsys fs,badblocks_list bb_list)279 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
280 {
281 	dgrp_t			i;
282 	blk_t			j;
283 	unsigned 		must_be_good;
284 	blk_t			blk;
285 	badblocks_iterate	bb_iter;
286 	errcode_t		retval;
287 	blk_t			group_block;
288 	int			group;
289 	int			group_bad;
290 
291 	if (!bb_list)
292 		return;
293 
294 	/*
295 	 * The primary superblock and group descriptors *must* be
296 	 * good; if not, abort.
297 	 */
298 	must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
299 	for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
300 		if (ext2fs_badblocks_list_test(bb_list, i)) {
301 			fprintf(stderr, _("Block %d in primary "
302 				"superblock/group descriptor area bad.\n"), i);
303 			fprintf(stderr, _("Blocks %u through %u must be good "
304 				"in order to build a filesystem.\n"),
305 				fs->super->s_first_data_block, must_be_good);
306 			fputs(_("Aborting....\n"), stderr);
307 			exit(1);
308 		}
309 	}
310 
311 	/*
312 	 * See if any of the bad blocks are showing up in the backup
313 	 * superblocks and/or group descriptors.  If so, issue a
314 	 * warning and adjust the block counts appropriately.
315 	 */
316 	group_block = fs->super->s_first_data_block +
317 		fs->super->s_blocks_per_group;
318 
319 	for (i = 1; i < fs->group_desc_count; i++) {
320 		group_bad = 0;
321 		for (j=0; j < fs->desc_blocks+1; j++) {
322 			if (ext2fs_badblocks_list_test(bb_list,
323 						       group_block + j)) {
324 				if (!group_bad)
325 					fprintf(stderr,
326 _("Warning: the backup superblock/group descriptors at block %u contain\n"
327 "	bad blocks.\n\n"),
328 						group_block);
329 				group_bad++;
330 				group = ext2fs_group_of_blk2(fs, group_block+j);
331 				ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
332 				ext2fs_group_desc_csum_set(fs, group);
333 				ext2fs_free_blocks_count_add(fs->super, 1);
334 			}
335 		}
336 		group_block += fs->super->s_blocks_per_group;
337 	}
338 
339 	/*
340 	 * Mark all the bad blocks as used...
341 	 */
342 	retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
343 	if (retval) {
344 		com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
345 			_("while marking bad blocks as used"));
346 		exit(1);
347 	}
348 	while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
349 		ext2fs_mark_block_bitmap2(fs->block_map, blk);
350 	ext2fs_badblocks_list_iterate_end(bb_iter);
351 }
352 
write_reserved_inodes(ext2_filsys fs)353 static void write_reserved_inodes(ext2_filsys fs)
354 {
355 	errcode_t	retval;
356 	ext2_ino_t	ino;
357 	struct ext2_inode *inode;
358 
359 	retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
360 	if (retval) {
361 		com_err("inode_init", retval, _("while allocating memory"));
362 		exit(1);
363 	}
364 
365 	for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++) {
366 		retval = ext2fs_write_inode_full(fs, ino, inode,
367 						 EXT2_INODE_SIZE(fs->super));
368 		if (retval) {
369 			com_err("ext2fs_write_inode_full", retval,
370 				_("while writing reserved inodes"));
371 			exit(1);
372 		}
373 	}
374 
375 	ext2fs_free_mem(&inode);
376 }
377 
packed_allocate_tables(ext2_filsys fs)378 static errcode_t packed_allocate_tables(ext2_filsys fs)
379 {
380 	errcode_t	retval;
381 	dgrp_t		i;
382 	blk64_t		goal = 0;
383 
384 	for (i = 0; i < fs->group_desc_count; i++) {
385 		retval = ext2fs_new_block2(fs, goal, NULL, &goal);
386 		if (retval)
387 			return retval;
388 		ext2fs_block_alloc_stats2(fs, goal, +1);
389 		ext2fs_block_bitmap_loc_set(fs, i, goal);
390 	}
391 	for (i = 0; i < fs->group_desc_count; i++) {
392 		retval = ext2fs_new_block2(fs, goal, NULL, &goal);
393 		if (retval)
394 			return retval;
395 		ext2fs_block_alloc_stats2(fs, goal, +1);
396 		ext2fs_inode_bitmap_loc_set(fs, i, goal);
397 	}
398 	for (i = 0; i < fs->group_desc_count; i++) {
399 		blk64_t end = ext2fs_blocks_count(fs->super) - 1;
400 		retval = ext2fs_get_free_blocks2(fs, goal, end,
401 						 fs->inode_blocks_per_group,
402 						 fs->block_map, &goal);
403 		if (retval)
404 			return retval;
405 		ext2fs_block_alloc_stats_range(fs, goal,
406 					       fs->inode_blocks_per_group, +1);
407 		ext2fs_inode_table_loc_set(fs, i, goal);
408 		ext2fs_group_desc_csum_set(fs, i);
409 	}
410 	return 0;
411 }
412 
write_inode_tables(ext2_filsys fs,int lazy_flag,int itable_zeroed)413 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
414 {
415 	errcode_t	retval;
416 	blk64_t		blk;
417 	dgrp_t		i;
418 	int		num;
419 	struct ext2fs_numeric_progress_struct progress;
420 
421 	ext2fs_numeric_progress_init(fs, &progress,
422 				     _("Writing inode tables: "),
423 				     fs->group_desc_count);
424 
425 	for (i = 0; i < fs->group_desc_count; i++) {
426 		ext2fs_numeric_progress_update(fs, &progress, i);
427 
428 		blk = ext2fs_inode_table_loc(fs, i);
429 		num = fs->inode_blocks_per_group;
430 
431 		if (lazy_flag)
432 			num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
433 					       ext2fs_bg_itable_unused(fs, i)) *
434 					      EXT2_INODE_SIZE(fs->super),
435 					      EXT2_BLOCK_SIZE(fs->super));
436 		if (!lazy_flag || itable_zeroed) {
437 			/* The kernel doesn't need to zero the itable blocks */
438 			ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
439 			ext2fs_group_desc_csum_set(fs, i);
440 		}
441 		if (!itable_zeroed) {
442 			retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
443 			if (retval) {
444 				fprintf(stderr, _("\nCould not write %d "
445 					  "blocks in inode table starting at %llu: %s\n"),
446 					num, (unsigned long long) blk,
447 					error_message(retval));
448 				exit(1);
449 			}
450 		}
451 		if (sync_kludge) {
452 			if (sync_kludge == 1)
453 				io_channel_flush(fs->io);
454 			else if ((i % sync_kludge) == 0)
455 				io_channel_flush(fs->io);
456 		}
457 	}
458 	ext2fs_numeric_progress_close(fs, &progress,
459 				      _("done                            \n"));
460 
461 	/* Reserved inodes must always have correct checksums */
462 	if (ext2fs_has_feature_metadata_csum(fs->super))
463 		write_reserved_inodes(fs);
464 }
465 
create_root_dir(ext2_filsys fs)466 static void create_root_dir(ext2_filsys fs)
467 {
468 	errcode_t		retval;
469 	struct ext2_inode	inode;
470 
471 	retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
472 	if (retval) {
473 		com_err("ext2fs_mkdir", retval, "%s",
474 			_("while creating root dir"));
475 		exit(1);
476 	}
477 	if (root_uid != 0 || root_gid != 0) {
478 		retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
479 		if (retval) {
480 			com_err("ext2fs_read_inode", retval, "%s",
481 				_("while reading root inode"));
482 			exit(1);
483 		}
484 
485 		inode.i_uid = root_uid;
486 		ext2fs_set_i_uid_high(inode, root_uid >> 16);
487 		inode.i_gid = root_gid;
488 		ext2fs_set_i_gid_high(inode, root_gid >> 16);
489 
490 		retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
491 		if (retval) {
492 			com_err("ext2fs_write_inode", retval, "%s",
493 				_("while setting root inode ownership"));
494 			exit(1);
495 		}
496 	}
497 }
498 
create_lost_and_found(ext2_filsys fs)499 static void create_lost_and_found(ext2_filsys fs)
500 {
501 	unsigned int		lpf_size = 0;
502 	errcode_t		retval;
503 	ext2_ino_t		ino;
504 	const char		*name = "lost+found";
505 	int			i;
506 
507 	fs->umask = 077;
508 	retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
509 	if (retval) {
510 		com_err("ext2fs_mkdir", retval, "%s",
511 			_("while creating /lost+found"));
512 		exit(1);
513 	}
514 
515 	retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
516 	if (retval) {
517 		com_err("ext2_lookup", retval, "%s",
518 			_("while looking up /lost+found"));
519 		exit(1);
520 	}
521 
522 	for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
523 		/* Ensure that lost+found is at least 2 blocks, so we always
524 		 * test large empty blocks for big-block filesystems.  */
525 		if ((lpf_size += fs->blocksize) >= 16*1024 &&
526 		    lpf_size >= 2 * fs->blocksize)
527 			break;
528 		retval = ext2fs_expand_dir(fs, ino);
529 		if (retval) {
530 			com_err("ext2fs_expand_dir", retval, "%s",
531 				_("while expanding /lost+found"));
532 			exit(1);
533 		}
534 	}
535 }
536 
create_bad_block_inode(ext2_filsys fs,badblocks_list bb_list)537 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
538 {
539 	errcode_t	retval;
540 
541 	ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
542 	ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
543 	retval = ext2fs_update_bb_inode(fs, bb_list);
544 	if (retval) {
545 		com_err("ext2fs_update_bb_inode", retval, "%s",
546 			_("while setting bad block inode"));
547 		exit(1);
548 	}
549 
550 }
551 
reserve_inodes(ext2_filsys fs)552 static void reserve_inodes(ext2_filsys fs)
553 {
554 	ext2_ino_t	i;
555 
556 	for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
557 		ext2fs_inode_alloc_stats2(fs, i, +1, 0);
558 	ext2fs_mark_ib_dirty(fs);
559 }
560 
561 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
562 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
563 #define BSD_LABEL_OFFSET        64
564 
zap_sector(ext2_filsys fs,int sect,int nsect)565 static void zap_sector(ext2_filsys fs, int sect, int nsect)
566 {
567 	char *buf;
568 	int retval;
569 	unsigned int *magic;
570 
571 	buf = calloc(512, nsect);
572 	if (!buf) {
573 		printf(_("Out of memory erasing sectors %d-%d\n"),
574 		       sect, sect + nsect - 1);
575 		exit(1);
576 	}
577 
578 	if (sect == 0) {
579 		/* Check for a BSD disklabel, and don't erase it if so */
580 		retval = io_channel_read_blk64(fs->io, 0, -512, buf);
581 		if (retval)
582 			fprintf(stderr,
583 				_("Warning: could not read block 0: %s\n"),
584 				error_message(retval));
585 		else {
586 			magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
587 			if ((*magic == BSD_DISKMAGIC) ||
588 			    (*magic == BSD_MAGICDISK)) {
589 				free(buf);
590 				return;
591 			}
592 		}
593 	}
594 
595 	memset(buf, 0, 512*nsect);
596 	io_channel_set_blksize(fs->io, 512);
597 	retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
598 	io_channel_set_blksize(fs->io, fs->blocksize);
599 	free(buf);
600 	if (retval)
601 		fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
602 			sect, error_message(retval));
603 }
604 
create_journal_dev(ext2_filsys fs)605 static void create_journal_dev(ext2_filsys fs)
606 {
607 	struct ext2fs_numeric_progress_struct progress;
608 	errcode_t		retval;
609 	char			*buf;
610 	blk64_t			blk, err_blk;
611 	int			c, count, err_count;
612 	struct ext2fs_journal_params	jparams;
613 
614 	retval = ext2fs_get_journal_params(&jparams, fs);
615 	if (retval) {
616 		com_err("create_journal_dev", retval, "%s",
617 			_("while splitting the journal size"));
618 		exit(1);
619 	}
620 
621 	retval = ext2fs_create_journal_superblock2(fs, &jparams, 0, &buf);
622 	if (retval) {
623 		com_err("create_journal_dev", retval, "%s",
624 			_("while initializing journal superblock"));
625 		exit(1);
626 	}
627 
628 	if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
629 		goto write_superblock;
630 
631 	ext2fs_numeric_progress_init(fs, &progress,
632 				     _("Zeroing journal device: "),
633 				     ext2fs_blocks_count(fs->super));
634 	blk = 0;
635 	count = ext2fs_blocks_count(fs->super);
636 	while (count > 0) {
637 		if (count > 1024)
638 			c = 1024;
639 		else
640 			c = count;
641 		retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
642 		if (retval) {
643 			com_err("create_journal_dev", retval,
644 				_("while zeroing journal device "
645 				  "(block %llu, count %d)"),
646 				(unsigned long long) err_blk, err_count);
647 			exit(1);
648 		}
649 		blk += c;
650 		count -= c;
651 		ext2fs_numeric_progress_update(fs, &progress, blk);
652 	}
653 
654 	ext2fs_numeric_progress_close(fs, &progress, NULL);
655 write_superblock:
656 	retval = io_channel_write_blk64(fs->io,
657 					fs->super->s_first_data_block+1,
658 					1, buf);
659 	(void) ext2fs_free_mem(&buf);
660 	if (retval) {
661 		com_err("create_journal_dev", retval, "%s",
662 			_("while writing journal superblock"));
663 		exit(1);
664 	}
665 }
666 
show_stats(ext2_filsys fs)667 static void show_stats(ext2_filsys fs)
668 {
669 	struct ext2_super_block *s = fs->super;
670         char                    *os;
671 	blk64_t			group_block;
672 	dgrp_t			i;
673 	int			need, col_left;
674 
675 	if (!verbose) {
676 		printf(_("Creating filesystem with %llu %dk blocks and "
677 			 "%u inodes\n"),
678 		       (unsigned long long) ext2fs_blocks_count(s),
679 		       fs->blocksize >> 10, s->s_inodes_count);
680 		goto skip_details;
681 	}
682 
683 	if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
684 		fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
685 			(unsigned long long) (ext2fs_blocks_count(&fs_param) -
686 					      ext2fs_blocks_count(s)));
687 
688 	printf(_("Filesystem label=%.*s\n"), EXT2_LEN_STR(s->s_volume_name));
689 
690 	os = e2p_os2string(fs->super->s_creator_os);
691 	if (os)
692 		printf(_("OS type: %s\n"), os);
693 	free(os);
694 	printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
695 		s->s_log_block_size);
696 	if (ext2fs_has_feature_bigalloc(fs->super))
697 		printf(_("Cluster size=%u (log=%u)\n"),
698 		       fs->blocksize << fs->cluster_ratio_bits,
699 		       s->s_log_cluster_size);
700 	else
701 		printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
702 		       s->s_log_cluster_size);
703 	printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
704 	       s->s_raid_stride, s->s_raid_stripe_width);
705 	printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
706 	       (unsigned long long) ext2fs_blocks_count(s));
707 	printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
708 	       (unsigned long long) ext2fs_r_blocks_count(s),
709 	       100.0 *  ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
710 	printf(_("First data block=%u\n"), s->s_first_data_block);
711 	if (root_uid != 0 || root_gid != 0)
712 		printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
713 	if (s->s_reserved_gdt_blocks)
714 		printf(_("Maximum filesystem blocks=%lu\n"),
715 		       (s->s_reserved_gdt_blocks + fs->desc_blocks) *
716 		       EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
717 	if (fs->group_desc_count > 1)
718 		printf(_("%u block groups\n"), fs->group_desc_count);
719 	else
720 		printf(_("%u block group\n"), fs->group_desc_count);
721 	if (ext2fs_has_feature_bigalloc(fs->super))
722 		printf(_("%u blocks per group, %u clusters per group\n"),
723 		       s->s_blocks_per_group, s->s_clusters_per_group);
724 	else
725 		printf(_("%u blocks per group, %u fragments per group\n"),
726 		       s->s_blocks_per_group, s->s_clusters_per_group);
727 	printf(_("%u inodes per group\n"), s->s_inodes_per_group);
728 
729 skip_details:
730 	if (fs->group_desc_count == 1) {
731 		printf("\n");
732 		return;
733 	}
734 
735 	if (!e2p_is_null_uuid(s->s_uuid))
736 		printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
737 	printf("%s", _("Superblock backups stored on blocks: "));
738 	group_block = s->s_first_data_block;
739 	col_left = 0;
740 	for (i = 1; i < fs->group_desc_count; i++) {
741 		group_block += s->s_blocks_per_group;
742 		if (!ext2fs_bg_has_super(fs, i))
743 			continue;
744 		if (i != 1)
745 			printf(", ");
746 		need = int_log10(group_block) + 2;
747 		if (need > col_left) {
748 			printf("\n\t");
749 			col_left = 72;
750 		}
751 		col_left -= need;
752 		printf("%llu", (unsigned long long) group_block);
753 	}
754 	printf("\n\n");
755 }
756 
757 /*
758  * Returns true if making a file system for the Hurd, else 0
759  */
for_hurd(const char * os)760 static int for_hurd(const char *os)
761 {
762 	if (!os) {
763 #ifdef __GNU__
764 		return 1;
765 #else
766 		return 0;
767 #endif
768 	}
769 	if (isdigit(*os))
770 		return (atoi(os) == EXT2_OS_HURD);
771 	return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
772 }
773 
774 /*
775  * Set the S_CREATOR_OS field.  Return true if OS is known,
776  * otherwise, 0.
777  */
set_os(struct ext2_super_block * sb,char * os)778 static int set_os(struct ext2_super_block *sb, char *os)
779 {
780 	if (isdigit (*os))
781 		sb->s_creator_os = atoi (os);
782 	else if (strcasecmp(os, "linux") == 0)
783 		sb->s_creator_os = EXT2_OS_LINUX;
784 	else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
785 		sb->s_creator_os = EXT2_OS_HURD;
786 	else if (strcasecmp(os, "freebsd") == 0)
787 		sb->s_creator_os = EXT2_OS_FREEBSD;
788 	else if (strcasecmp(os, "lites") == 0)
789 		sb->s_creator_os = EXT2_OS_LITES;
790 	else
791 		return 0;
792 	return 1;
793 }
794 
795 #define PATH_SET "PATH=/sbin"
796 
parse_extended_opts(struct ext2_super_block * param,const char * opts)797 static void parse_extended_opts(struct ext2_super_block *param,
798 				const char *opts)
799 {
800 	char	*buf, *token, *next, *p, *arg, *badopt = 0;
801 	int	len;
802 	int	r_usage = 0;
803 	int	ret;
804 	int	encoding = -1;
805 	char 	*encoding_flags = NULL;
806 
807 	len = strlen(opts);
808 	buf = malloc(len+1);
809 	if (!buf) {
810 		fprintf(stderr, "%s",
811 			_("Couldn't allocate memory to parse options!\n"));
812 		exit(1);
813 	}
814 	strcpy(buf, opts);
815 	for (token = buf; token && *token; token = next) {
816 		p = strchr(token, ',');
817 		next = 0;
818 		if (p) {
819 			*p = 0;
820 			next = p+1;
821 		}
822 		arg = strchr(token, '=');
823 		if (arg) {
824 			*arg = 0;
825 			arg++;
826 		}
827 		if (strcmp(token, "desc-size") == 0 ||
828 		    strcmp(token, "desc_size") == 0) {
829 			int desc_size;
830 
831 			if (!ext2fs_has_feature_64bit(&fs_param)) {
832 				fprintf(stderr,
833 					_("%s requires '-O 64bit'\n"), token);
834 				r_usage++;
835 				continue;
836 			}
837 			if (param->s_reserved_gdt_blocks != 0) {
838 				fprintf(stderr,
839 					_("'%s' must be before 'resize=%u'\n"),
840 					token, param->s_reserved_gdt_blocks);
841 				r_usage++;
842 				continue;
843 			}
844 			if (!arg) {
845 				r_usage++;
846 				badopt = token;
847 				continue;
848 			}
849 			desc_size = strtoul(arg, &p, 0);
850 			if (*p || (desc_size & (desc_size - 1))) {
851 				fprintf(stderr,
852 					_("Invalid desc_size: '%s'\n"), arg);
853 				r_usage++;
854 				continue;
855 			}
856 			param->s_desc_size = desc_size;
857 		} else if (strcmp(token, "hash_seed") == 0) {
858 			if (!arg) {
859 				r_usage++;
860 				badopt = token;
861 				continue;
862 			}
863 			if (uuid_parse(arg,
864 				(unsigned char *)param->s_hash_seed) != 0) {
865 				fprintf(stderr,
866 					_("Invalid hash seed: %s\n"), arg);
867 				r_usage++;
868 				continue;
869 			}
870 		} else if (strcmp(token, "offset") == 0) {
871 			if (!arg) {
872 				r_usage++;
873 				badopt = token;
874 				continue;
875 			}
876 			offset = strtoull(arg, &p, 0);
877 			if (*p) {
878 				fprintf(stderr, _("Invalid offset: %s\n"),
879 					arg);
880 				r_usage++;
881 				continue;
882 			}
883 		} else if (strcmp(token, "mmp_update_interval") == 0) {
884 			if (!arg) {
885 				r_usage++;
886 				badopt = token;
887 				continue;
888 			}
889 			param->s_mmp_update_interval = strtoul(arg, &p, 0);
890 			if (*p) {
891 				fprintf(stderr,
892 					_("Invalid mmp_update_interval: %s\n"),
893 					arg);
894 				r_usage++;
895 				continue;
896 			}
897 		} else if (strcmp(token, "no_copy_xattrs") == 0) {
898 			no_copy_xattrs = 1;
899 			continue;
900 		} else if (strcmp(token, "num_backup_sb") == 0) {
901 			if (!arg) {
902 				r_usage++;
903 				badopt = token;
904 				continue;
905 			}
906 			num_backups = strtoul(arg, &p, 0);
907 			if (*p || num_backups > 2) {
908 				fprintf(stderr,
909 					_("Invalid # of backup "
910 					  "superblocks: %s\n"),
911 					arg);
912 				r_usage++;
913 				continue;
914 			}
915 		} else if (strcmp(token, "packed_meta_blocks") == 0) {
916 			if (arg)
917 				packed_meta_blocks = strtoul(arg, &p, 0);
918 			else
919 				packed_meta_blocks = 1;
920 			if (packed_meta_blocks)
921 				journal_location = 0;
922 		} else if (strcmp(token, "stride") == 0) {
923 			if (!arg) {
924 				r_usage++;
925 				badopt = token;
926 				continue;
927 			}
928 			param->s_raid_stride = strtoul(arg, &p, 0);
929 			if (*p) {
930 				fprintf(stderr,
931 					_("Invalid stride parameter: %s\n"),
932 					arg);
933 				r_usage++;
934 				continue;
935 			}
936 		} else if (strcmp(token, "stripe-width") == 0 ||
937 			   strcmp(token, "stripe_width") == 0) {
938 			if (!arg) {
939 				r_usage++;
940 				badopt = token;
941 				continue;
942 			}
943 			param->s_raid_stripe_width = strtoul(arg, &p, 0);
944 			if (*p) {
945 				fprintf(stderr,
946 					_("Invalid stripe-width parameter: %s\n"),
947 					arg);
948 				r_usage++;
949 				continue;
950 			}
951 		} else if (!strcmp(token, "resize")) {
952 			blk64_t resize;
953 			unsigned long bpg, rsv_groups;
954 			unsigned long group_desc_count, desc_blocks;
955 			unsigned int gdpb, blocksize;
956 			int rsv_gdb;
957 
958 			if (!arg) {
959 				r_usage++;
960 				badopt = token;
961 				continue;
962 			}
963 
964 			resize = parse_num_blocks2(arg,
965 						   param->s_log_block_size);
966 
967 			if (resize == 0) {
968 				fprintf(stderr,
969 					_("Invalid resize parameter: %s\n"),
970 					arg);
971 				r_usage++;
972 				continue;
973 			}
974 			if (resize <= ext2fs_blocks_count(param)) {
975 				fprintf(stderr, "%s",
976 					_("The resize maximum must be greater "
977 					  "than the filesystem size.\n"));
978 				r_usage++;
979 				continue;
980 			}
981 
982 			blocksize = EXT2_BLOCK_SIZE(param);
983 			bpg = param->s_blocks_per_group;
984 			if (!bpg)
985 				bpg = blocksize * 8;
986 			gdpb = EXT2_DESC_PER_BLOCK(param);
987 			group_desc_count = (__u32) ext2fs_div64_ceil(
988 				ext2fs_blocks_count(param), bpg);
989 			desc_blocks = (group_desc_count +
990 				       gdpb - 1) / gdpb;
991 			rsv_groups = ext2fs_div64_ceil(resize, bpg);
992 			rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
993 				desc_blocks;
994 			if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
995 				rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
996 
997 			if (rsv_gdb > 0) {
998 				if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
999 					fprintf(stderr, "%s",
1000 	_("On-line resizing not supported with revision 0 filesystems\n"));
1001 					free(buf);
1002 					exit(1);
1003 				}
1004 				ext2fs_set_feature_resize_inode(param);
1005 
1006 				param->s_reserved_gdt_blocks = rsv_gdb;
1007 			}
1008 		} else if (!strcmp(token, "test_fs")) {
1009 			param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1010 		} else if (!strcmp(token, "lazy_itable_init")) {
1011 			if (arg)
1012 				lazy_itable_init = strtoul(arg, &p, 0);
1013 			else
1014 				lazy_itable_init = 1;
1015 		} else if (!strcmp(token, "lazy_journal_init")) {
1016 			if (arg)
1017 				journal_flags |= strtoul(arg, &p, 0) ?
1018 						EXT2_MKJOURNAL_LAZYINIT : 0;
1019 			else
1020 				journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
1021 		} else if (!strcmp(token, "root_owner")) {
1022 			if (arg) {
1023 				root_uid = strtoul(arg, &p, 0);
1024 				if (*p != ':') {
1025 					fprintf(stderr,
1026 						_("Invalid root_owner: '%s'\n"),
1027 						arg);
1028 					r_usage++;
1029 					continue;
1030 				}
1031 				p++;
1032 				root_gid = strtoul(p, &p, 0);
1033 				if (*p) {
1034 					fprintf(stderr,
1035 						_("Invalid root_owner: '%s'\n"),
1036 						arg);
1037 					r_usage++;
1038 					continue;
1039 				}
1040 			} else {
1041 				root_uid = getuid();
1042 				root_gid = getgid();
1043 			}
1044 		} else if (!strcmp(token, "discard")) {
1045 			discard = 1;
1046 		} else if (!strcmp(token, "nodiscard")) {
1047 			discard = 0;
1048 		} else if (!strcmp(token, "quotatype")) {
1049 			char *errtok = NULL;
1050 
1051 			if (!arg) {
1052 				r_usage++;
1053 				badopt = token;
1054 				continue;
1055 			}
1056 			quotatype_bits = 0;
1057 			ret = parse_quota_types(arg, &quotatype_bits, &errtok);
1058 			if (ret) {
1059 				if (errtok) {
1060 					fprintf(stderr,
1061 				"Failed to parse quota type at %s", errtok);
1062 					free(errtok);
1063 				} else
1064 					com_err(program_name, ret,
1065 						"while parsing quota type");
1066 				r_usage++;
1067 				badopt = token;
1068 				continue;
1069 			}
1070 		} else if (!strcmp(token, "android_sparse")) {
1071 			android_sparse_file = 1;
1072 		} else if (!strcmp(token, "encoding")) {
1073 			if (!arg) {
1074 				r_usage++;
1075 				continue;
1076 			}
1077 
1078 			encoding = e2p_str2encoding(arg);
1079 			if (encoding < 0) {
1080 				fprintf(stderr, _("Invalid encoding: %s"), arg);
1081 				r_usage++;
1082 				continue;
1083 			}
1084 			param->s_encoding = encoding;
1085 			ext2fs_set_feature_casefold(param);
1086 		} else if (!strcmp(token, "encoding_flags")) {
1087 			if (!arg) {
1088 				r_usage++;
1089 				continue;
1090 			}
1091 			encoding_flags = arg;
1092 		} else {
1093 			r_usage++;
1094 			badopt = token;
1095 		}
1096 	}
1097 	if (r_usage) {
1098 		fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1099 			"Extended options are separated by commas, "
1100 			"and may take an argument which\n"
1101 			"\tis set off by an equals ('=') sign.\n\n"
1102 			"Valid extended options are:\n"
1103 			"\tmmp_update_interval=<interval>\n"
1104 			"\tnum_backup_sb=<0|1|2>\n"
1105 			"\tstride=<RAID per-disk data chunk in blocks>\n"
1106 			"\tstripe-width=<RAID stride * data disks in blocks>\n"
1107 			"\toffset=<offset to create the file system>\n"
1108 			"\tresize=<resize maximum size in blocks>\n"
1109 			"\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1110 			"\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1111 			"\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1112 			"\troot_owner=<uid of root dir>:<gid of root dir>\n"
1113 			"\ttest_fs\n"
1114 			"\tdiscard\n"
1115 			"\tnodiscard\n"
1116 			"\tencoding=<encoding>\n"
1117 			"\tencoding_flags=<flags>\n"
1118 			"\tquotatype=<quota type(s) to be enabled>\n\n"),
1119 			badopt ? badopt : "");
1120 		free(buf);
1121 		exit(1);
1122 	}
1123 	if (param->s_raid_stride &&
1124 	    (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1125 		fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1126 				  "multiple of stride %u.\n\n"),
1127 			param->s_raid_stripe_width, param->s_raid_stride);
1128 
1129 	if (ext2fs_has_feature_casefold(param)) {
1130 		param->s_encoding_flags =
1131 			e2p_get_encoding_flags(param->s_encoding);
1132 
1133 		if (encoding_flags &&
1134 		    e2p_str2encoding_flags(param->s_encoding, encoding_flags,
1135 					   &param->s_encoding_flags)) {
1136 			fprintf(stderr, _("error: Invalid encoding flag: %s\n"),
1137 				encoding_flags);
1138 			free(buf);
1139 			exit(1);
1140 		}
1141 	} else if (encoding_flags) {
1142 		fprintf(stderr, _("error: An encoding must be explicitly "
1143 				  "specified when passing encoding-flags\n"));
1144 		free(buf);
1145 		exit(1);
1146 	}
1147 
1148 	free(buf);
1149 }
1150 
1151 static __u32 ok_features[3] = {
1152 	/* Compat */
1153 	EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1154 		EXT2_FEATURE_COMPAT_RESIZE_INODE |
1155 		EXT2_FEATURE_COMPAT_DIR_INDEX |
1156 		EXT2_FEATURE_COMPAT_EXT_ATTR |
1157 		EXT4_FEATURE_COMPAT_SPARSE_SUPER2 |
1158 		EXT4_FEATURE_COMPAT_FAST_COMMIT |
1159 		EXT4_FEATURE_COMPAT_STABLE_INODES,
1160 	/* Incompat */
1161 	EXT2_FEATURE_INCOMPAT_FILETYPE|
1162 		EXT3_FEATURE_INCOMPAT_EXTENTS|
1163 		EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1164 		EXT2_FEATURE_INCOMPAT_META_BG|
1165 		EXT4_FEATURE_INCOMPAT_FLEX_BG|
1166 		EXT4_FEATURE_INCOMPAT_EA_INODE|
1167 		EXT4_FEATURE_INCOMPAT_MMP |
1168 		EXT4_FEATURE_INCOMPAT_64BIT|
1169 		EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1170 		EXT4_FEATURE_INCOMPAT_ENCRYPT |
1171 		EXT4_FEATURE_INCOMPAT_CASEFOLD |
1172 		EXT4_FEATURE_INCOMPAT_CSUM_SEED |
1173 		EXT4_FEATURE_INCOMPAT_LARGEDIR,
1174 	/* R/O compat */
1175 	EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1176 		EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1177 		EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1178 		EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1179 		EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1180 		EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1181 		EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1182 		EXT4_FEATURE_RO_COMPAT_QUOTA|
1183 		EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1184 		EXT4_FEATURE_RO_COMPAT_PROJECT|
1185 		EXT4_FEATURE_RO_COMPAT_VERITY
1186 };
1187 
1188 
syntax_err_report(const char * filename,long err,int line_num)1189 static void syntax_err_report(const char *filename, long err, int line_num)
1190 {
1191 	fprintf(stderr,
1192 		_("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1193 		filename, line_num, error_message(err));
1194 	exit(1);
1195 }
1196 
1197 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1198 
edit_feature(const char * str,__u32 * compat_array)1199 static void edit_feature(const char *str, __u32 *compat_array)
1200 {
1201 	if (!str)
1202 		return;
1203 
1204 	if (e2p_edit_feature(str, compat_array, ok_features)) {
1205 		fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1206 			str);
1207 		exit(1);
1208 	}
1209 }
1210 
edit_mntopts(const char * str,__u32 * mntopts)1211 static void edit_mntopts(const char *str, __u32 *mntopts)
1212 {
1213 	if (!str)
1214 		return;
1215 
1216 	if (e2p_edit_mntopts(str, mntopts, ~0)) {
1217 		fprintf(stderr, _("Invalid mount option set: %s\n"),
1218 			str);
1219 		exit(1);
1220 	}
1221 }
1222 
1223 struct str_list {
1224 	char **list;
1225 	int num;
1226 	int max;
1227 };
1228 
init_list(struct str_list * sl)1229 static errcode_t init_list(struct str_list *sl)
1230 {
1231 	sl->num = 0;
1232 	sl->max = 1;
1233 	sl->list = malloc((sl->max+1) * sizeof(char *));
1234 	if (!sl->list)
1235 		return ENOMEM;
1236 	sl->list[0] = 0;
1237 	return 0;
1238 }
1239 
push_string(struct str_list * sl,const char * str)1240 static errcode_t push_string(struct str_list *sl, const char *str)
1241 {
1242 	char **new_list;
1243 
1244 	if (sl->num >= sl->max) {
1245 		sl->max += 2;
1246 		new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1247 		if (!new_list)
1248 			return ENOMEM;
1249 		sl->list = new_list;
1250 	}
1251 	sl->list[sl->num] = malloc(strlen(str)+1);
1252 	if (sl->list[sl->num] == 0)
1253 		return ENOMEM;
1254 	strcpy(sl->list[sl->num], str);
1255 	sl->num++;
1256 	sl->list[sl->num] = 0;
1257 	return 0;
1258 }
1259 
print_str_list(char ** list)1260 static void print_str_list(char **list)
1261 {
1262 	char **cpp;
1263 
1264 	for (cpp = list; *cpp; cpp++) {
1265 		printf("'%s'", *cpp);
1266 		if (cpp[1])
1267 			fputs(", ", stdout);
1268 	}
1269 	fputc('\n', stdout);
1270 }
1271 
1272 /*
1273  * Return TRUE if the profile has the given subsection
1274  */
profile_has_subsection(profile_t prof,const char * section,const char * subsection)1275 static int profile_has_subsection(profile_t prof, const char *section,
1276 				  const char *subsection)
1277 {
1278 	void			*state;
1279 	const char		*names[4];
1280 	char			*name;
1281 	int			ret = 0;
1282 
1283 	names[0] = section;
1284 	names[1] = subsection;
1285 	names[2] = 0;
1286 
1287 	if (profile_iterator_create(prof, names,
1288 				    PROFILE_ITER_LIST_SECTION |
1289 				    PROFILE_ITER_RELATIONS_ONLY, &state))
1290 		return 0;
1291 
1292 	if ((profile_iterator(&state, &name, 0) == 0) && name) {
1293 		free(name);
1294 		ret = 1;
1295 	}
1296 
1297 	profile_iterator_free(&state);
1298 	return ret;
1299 }
1300 
parse_fs_type(const char * fs_type,const char * usage_types,struct ext2_super_block * sb,blk64_t fs_blocks_count,char * progname)1301 static char **parse_fs_type(const char *fs_type,
1302 			    const char *usage_types,
1303 			    struct ext2_super_block *sb,
1304 			    blk64_t fs_blocks_count,
1305 			    char *progname)
1306 {
1307 	const char	*ext_type = 0;
1308 	char		*parse_str;
1309 	char		*profile_type = 0;
1310 	char		*cp, *t;
1311 	const char	*size_type;
1312 	struct str_list	list;
1313 	unsigned long long meg;
1314 	int		is_hurd = for_hurd(creator_os);
1315 
1316 	if (init_list(&list))
1317 		return 0;
1318 
1319 	if (fs_type)
1320 		ext_type = fs_type;
1321 	else if (is_hurd)
1322 		ext_type = "ext2";
1323 	else if (!strcmp(program_name, "mke3fs"))
1324 		ext_type = "ext3";
1325 	else if (!strcmp(program_name, "mke4fs"))
1326 		ext_type = "ext4";
1327 	else if (progname) {
1328 		ext_type = strrchr(progname, '/');
1329 		if (ext_type)
1330 			ext_type++;
1331 		else
1332 			ext_type = progname;
1333 
1334 		if (!strncmp(ext_type, "mkfs.", 5)) {
1335 			ext_type += 5;
1336 			if (ext_type[0] == 0)
1337 				ext_type = 0;
1338 		} else
1339 			ext_type = 0;
1340 	}
1341 
1342 	if (!ext_type) {
1343 		profile_get_string(profile, "defaults", "fs_type", 0,
1344 				   "ext2", &profile_type);
1345 		ext_type = profile_type;
1346 		if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1347 			ext_type = "ext3";
1348 	}
1349 
1350 
1351 	if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1352 	    strcmp(ext_type, "ext2")) {
1353 		printf(_("\nYour mke2fs.conf file does not define the "
1354 			 "%s filesystem type.\n"), ext_type);
1355 		if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1356 		    !strcmp(ext_type, "ext4dev")) {
1357 			printf("%s", _("You probably need to install an "
1358 				       "updated mke2fs.conf file.\n\n"));
1359 		}
1360 		if (!force) {
1361 			printf("%s", _("Aborting...\n"));
1362 			exit(1);
1363 		}
1364 	}
1365 
1366 	meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1367 	if (fs_blocks_count < 3 * meg)
1368 		size_type = "floppy";
1369 	else if (fs_blocks_count < 512 * meg)
1370 		size_type = "small";
1371 	else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1372 		size_type = "default";
1373 	else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1374 		size_type = "big";
1375 	else
1376 		size_type = "huge";
1377 
1378 	if (!usage_types)
1379 		usage_types = size_type;
1380 
1381 	parse_str = malloc(strlen(usage_types)+1);
1382 	if (!parse_str) {
1383 		free(profile_type);
1384 		free(list.list);
1385 		return 0;
1386 	}
1387 	strcpy(parse_str, usage_types);
1388 
1389 	if (ext_type)
1390 		push_string(&list, ext_type);
1391 	cp = parse_str;
1392 	while (1) {
1393 		t = strchr(cp, ',');
1394 		if (t)
1395 			*t = '\0';
1396 
1397 		if (*cp) {
1398 			if (profile_has_subsection(profile, "fs_types", cp))
1399 				push_string(&list, cp);
1400 			else if (strcmp(cp, "default") != 0)
1401 				fprintf(stderr,
1402 					_("\nWarning: the fs_type %s is not "
1403 					  "defined in mke2fs.conf\n\n"),
1404 					cp);
1405 		}
1406 		if (t)
1407 			cp = t+1;
1408 		else
1409 			break;
1410 	}
1411 	free(parse_str);
1412 	free(profile_type);
1413 	if (is_hurd)
1414 		push_string(&list, "hurd");
1415 	return (list.list);
1416 }
1417 
get_string_from_profile(char ** types,const char * opt,const char * def_val)1418 char *get_string_from_profile(char **types, const char *opt,
1419 				     const char *def_val)
1420 {
1421 	char *ret = 0;
1422 	int i;
1423 
1424 	for (i=0; types[i]; i++);
1425 	for (i-=1; i >=0 ; i--) {
1426 		profile_get_string(profile, "fs_types", types[i],
1427 				   opt, 0, &ret);
1428 		if (ret)
1429 			return ret;
1430 	}
1431 	profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1432 	return (ret);
1433 }
1434 
get_int_from_profile(char ** types,const char * opt,int def_val)1435 int get_int_from_profile(char **types, const char *opt, int def_val)
1436 {
1437 	int ret;
1438 	char **cpp;
1439 
1440 	profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1441 	for (cpp = types; *cpp; cpp++)
1442 		profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1443 	return ret;
1444 }
1445 
get_uint_from_profile(char ** types,const char * opt,unsigned int def_val)1446 static unsigned int get_uint_from_profile(char **types, const char *opt,
1447 					unsigned int def_val)
1448 {
1449 	unsigned int ret;
1450 	char **cpp;
1451 
1452 	profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1453 	for (cpp = types; *cpp; cpp++)
1454 		profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1455 	return ret;
1456 }
1457 
get_double_from_profile(char ** types,const char * opt,double def_val)1458 static double get_double_from_profile(char **types, const char *opt,
1459 				      double def_val)
1460 {
1461 	double ret;
1462 	char **cpp;
1463 
1464 	profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1465 	for (cpp = types; *cpp; cpp++)
1466 		profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1467 	return ret;
1468 }
1469 
get_bool_from_profile(char ** types,const char * opt,int def_val)1470 int get_bool_from_profile(char **types, const char *opt, int def_val)
1471 {
1472 	int ret;
1473 	char **cpp;
1474 
1475 	profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1476 	for (cpp = types; *cpp; cpp++)
1477 		profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1478 	return ret;
1479 }
1480 
1481 extern const char *mke2fs_default_profile;
1482 static const char *default_files[] = { "<default>", 0 };
1483 
1484 struct device_param {
1485 	unsigned long min_io;		/* prefered minimum IO size */
1486 	unsigned long opt_io;		/* optimal IO size */
1487 	unsigned long alignment_offset;	/* alignment offset wrt physical block size */
1488 	unsigned int dax:1;		/* supports dax? */
1489 };
1490 
1491 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1492 /*
1493  * Sets the geometry of a device (stripe/stride), and returns the
1494  * device's alignment offset, if any, or a negative error.
1495  */
get_device_geometry(const char * file,unsigned int blocksize,unsigned int psector_size,struct device_param * dev_param)1496 static int get_device_geometry(const char *file,
1497 			       unsigned int blocksize,
1498 			       unsigned int psector_size,
1499 			       struct device_param *dev_param)
1500 {
1501 	int rc = -1;
1502 	blkid_probe pr;
1503 	blkid_topology tp;
1504 	struct stat statbuf;
1505 
1506 	memset(dev_param, 0, sizeof(*dev_param));
1507 
1508 	/* Nothing to do for a regular file */
1509 	if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1510 		return 0;
1511 
1512 	pr = blkid_new_probe_from_filename(file);
1513 	if (!pr)
1514 		goto out;
1515 
1516 	tp = blkid_probe_get_topology(pr);
1517 	if (!tp)
1518 		goto out;
1519 
1520 	dev_param->min_io = blkid_topology_get_minimum_io_size(tp);
1521 	dev_param->opt_io = blkid_topology_get_optimal_io_size(tp);
1522 	if ((dev_param->min_io == 0) && (psector_size > blocksize))
1523 		dev_param->min_io = psector_size;
1524 	if ((dev_param->opt_io == 0) && dev_param->min_io > 0)
1525 		dev_param->opt_io = dev_param->min_io;
1526 	if ((dev_param->opt_io == 0) && (psector_size > blocksize))
1527 		dev_param->opt_io = psector_size;
1528 
1529 	dev_param->alignment_offset = blkid_topology_get_alignment_offset(tp);
1530 #ifdef HAVE_BLKID_TOPOLOGY_GET_DAX
1531 	dev_param->dax = blkid_topology_get_dax(tp);
1532 #endif
1533 	rc = 0;
1534 out:
1535 	blkid_free_probe(pr);
1536 	return rc;
1537 }
1538 #endif
1539 
PRS(int argc,char * argv[])1540 static void PRS(int argc, char *argv[])
1541 {
1542 	int		b, c, flags;
1543 	int		cluster_size = 0;
1544 	char 		*tmp, **cpp;
1545 	int		explicit_fssize = 0;
1546 	int		blocksize = 0;
1547 	int		inode_ratio = 0;
1548 	int		inode_size = 0;
1549 	unsigned long	flex_bg_size = 0;
1550 	double		reserved_ratio = -1.0;
1551 	int		lsector_size = 0, psector_size = 0;
1552 	int		show_version_only = 0, is_device = 0;
1553 	unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1554 	errcode_t	retval;
1555 	char *		oldpath = getenv("PATH");
1556 	char *		extended_opts = 0;
1557 	char *		fs_type = 0;
1558 	char *		usage_types = 0;
1559 	/*
1560 	 * NOTE: A few words about fs_blocks_count and blocksize:
1561 	 *
1562 	 * Initially, blocksize is set to zero, which implies 1024.
1563 	 * If -b is specified, blocksize is updated to the user's value.
1564 	 *
1565 	 * Next, the device size or the user's "blocks" command line argument
1566 	 * is used to set fs_blocks_count; the units are blocksize.
1567 	 *
1568 	 * Later, if blocksize hasn't been set and the profile specifies a
1569 	 * blocksize, then blocksize is updated and fs_blocks_count is scaled
1570 	 * appropriately.  Note the change in units!
1571 	 *
1572 	 * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1573 	 */
1574 	blk64_t		fs_blocks_count = 0;
1575 	long		sysval;
1576 	int		s_opt = -1, r_opt = -1;
1577 	char		*fs_features = 0;
1578 	int		fs_features_size = 0;
1579 	int		use_bsize;
1580 	char		*newpath;
1581 	int		pathlen = sizeof(PATH_SET) + 1;
1582 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1583 	struct device_param dev_param;
1584 #endif
1585 
1586 	if (oldpath)
1587 		pathlen += strlen(oldpath);
1588 	newpath = malloc(pathlen);
1589 	if (!newpath) {
1590 		fprintf(stderr, "%s",
1591 			_("Couldn't allocate memory for new PATH.\n"));
1592 		exit(1);
1593 	}
1594 	strcpy(newpath, PATH_SET);
1595 
1596 	/* Update our PATH to include /sbin  */
1597 	if (oldpath) {
1598 		strcat (newpath, ":");
1599 		strcat (newpath, oldpath);
1600 	}
1601 	putenv (newpath);
1602 
1603 	/* Determine the system page size if possible */
1604 #ifdef HAVE_SYSCONF
1605 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1606 #define _SC_PAGESIZE _SC_PAGE_SIZE
1607 #endif
1608 #ifdef _SC_PAGESIZE
1609 	sysval = sysconf(_SC_PAGESIZE);
1610 	if (sysval > 0)
1611 		sys_page_size = sysval;
1612 #endif /* _SC_PAGESIZE */
1613 #endif /* HAVE_SYSCONF */
1614 
1615 	if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1616 		config_fn[0] = tmp;
1617 	profile_set_syntax_err_cb(syntax_err_report);
1618 	retval = profile_init(config_fn, &profile);
1619 	if (retval == ENOENT) {
1620 		retval = profile_init(default_files, &profile);
1621 		if (retval)
1622 			goto profile_error;
1623 		retval = profile_set_default(profile, mke2fs_default_profile);
1624 		if (retval)
1625 			goto profile_error;
1626 	} else if (retval) {
1627 profile_error:
1628 		fprintf(stderr, _("Couldn't init profile successfully"
1629 				  " (error: %ld).\n"), retval);
1630 		exit(1);
1631 	}
1632 
1633 	setbuf(stdout, NULL);
1634 	setbuf(stderr, NULL);
1635 	add_error_table(&et_ext2_error_table);
1636 	add_error_table(&et_prof_error_table);
1637 	memset(&fs_param, 0, sizeof(struct ext2_super_block));
1638 	fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
1639 
1640 	if (is_before_linux_ver(2, 2, 0))
1641 		fs_param.s_rev_level = 0;
1642 
1643 	if (argc && *argv) {
1644 		program_name = get_progname(*argv);
1645 
1646 		/* If called as mkfs.ext3, create a journal inode */
1647 		if (!strcmp(program_name, "mkfs.ext3") ||
1648 		    !strcmp(program_name, "mke3fs"))
1649 			journal_size = -1;
1650 	}
1651 
1652 	while ((c = getopt (argc, argv,
1653 		    "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) {
1654 		switch (c) {
1655 		case 'b':
1656 			blocksize = parse_num_blocks2(optarg, -1);
1657 			b = (blocksize > 0) ? blocksize : -blocksize;
1658 			if (b < EXT2_MIN_BLOCK_SIZE ||
1659 			    b > EXT2_MAX_BLOCK_SIZE) {
1660 				com_err(program_name, 0,
1661 					_("invalid block size - %s"), optarg);
1662 				exit(1);
1663 			}
1664 			if (blocksize > 4096)
1665 				fprintf(stderr, _("Warning: blocksize %d not "
1666 						  "usable on most systems.\n"),
1667 					blocksize);
1668 			if (blocksize > 0)
1669 				fs_param.s_log_block_size =
1670 					int_log2(blocksize >>
1671 						 EXT2_MIN_BLOCK_LOG_SIZE);
1672 			break;
1673 		case 'c':	/* Check for bad blocks */
1674 			cflag++;
1675 			break;
1676 		case 'C':
1677 			cluster_size = parse_num_blocks2(optarg, -1);
1678 			if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1679 			    cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1680 				com_err(program_name, 0,
1681 					_("invalid cluster size - %s"),
1682 					optarg);
1683 				exit(1);
1684 			}
1685 			break;
1686 		case 'd':
1687 			src_root_dir = optarg;
1688 			break;
1689 		case 'D':
1690 			direct_io = 1;
1691 			break;
1692 		case 'R':
1693 			com_err(program_name, 0, "%s",
1694 				_("'-R' is deprecated, use '-E' instead"));
1695 			/* fallthrough */
1696 		case 'E':
1697 			extended_opts = optarg;
1698 			break;
1699 		case 'e':
1700 			if (strcmp(optarg, "continue") == 0)
1701 				errors_behavior = EXT2_ERRORS_CONTINUE;
1702 			else if (strcmp(optarg, "remount-ro") == 0)
1703 				errors_behavior = EXT2_ERRORS_RO;
1704 			else if (strcmp(optarg, "panic") == 0)
1705 				errors_behavior = EXT2_ERRORS_PANIC;
1706 			else {
1707 				com_err(program_name, 0,
1708 					_("bad error behavior - %s"),
1709 					optarg);
1710 				usage();
1711 			}
1712 			break;
1713 		case 'F':
1714 			force++;
1715 			break;
1716 		case 'g':
1717 			fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1718 			if (*tmp) {
1719 				com_err(program_name, 0, "%s",
1720 				_("Illegal number for blocks per group"));
1721 				exit(1);
1722 			}
1723 			if ((fs_param.s_blocks_per_group % 8) != 0) {
1724 				com_err(program_name, 0, "%s",
1725 				_("blocks per group must be multiple of 8"));
1726 				exit(1);
1727 			}
1728 			break;
1729 		case 'G':
1730 			flex_bg_size = strtoul(optarg, &tmp, 0);
1731 			if (*tmp) {
1732 				com_err(program_name, 0, "%s",
1733 					_("Illegal number for flex_bg size"));
1734 				exit(1);
1735 			}
1736 			if (flex_bg_size < 1 ||
1737 			    (flex_bg_size & (flex_bg_size-1)) != 0) {
1738 				com_err(program_name, 0, "%s",
1739 					_("flex_bg size must be a power of 2"));
1740 				exit(1);
1741 			}
1742 			if (flex_bg_size > MAX_32_NUM) {
1743 				com_err(program_name, 0,
1744 				_("flex_bg size (%lu) must be less than"
1745 				" or equal to 2^31"), flex_bg_size);
1746 				exit(1);
1747 			}
1748 			break;
1749 		case 'i':
1750 			inode_ratio = parse_num_blocks(optarg, -1);
1751 			if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1752 			    inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1753 				com_err(program_name, 0,
1754 					_("invalid inode ratio %s (min %d/max %d)"),
1755 					optarg, EXT2_MIN_BLOCK_SIZE,
1756 					EXT2_MAX_BLOCK_SIZE * 1024);
1757 				exit(1);
1758 			}
1759 			break;
1760 		case 'I':
1761 			inode_size = strtoul(optarg, &tmp, 0);
1762 			if (*tmp) {
1763 				com_err(program_name, 0,
1764 					_("invalid inode size - %s"), optarg);
1765 				exit(1);
1766 			}
1767 			break;
1768 		case 'j':
1769 			if (!journal_size)
1770 				journal_size = -1;
1771 			if (!journal_fc_size)
1772 				journal_fc_size = -1;
1773 			break;
1774 		case 'J':
1775 			parse_journal_opts(optarg);
1776 			break;
1777 		case 'K':
1778 			fprintf(stderr, "%s",
1779 				_("Warning: -K option is deprecated and "
1780 				  "should not be used anymore. Use "
1781 				  "\'-E nodiscard\' extended option "
1782 				  "instead!\n"));
1783 			discard = 0;
1784 			break;
1785 		case 'l':
1786 			bad_blocks_filename = realloc(bad_blocks_filename,
1787 						      strlen(optarg) + 1);
1788 			if (!bad_blocks_filename) {
1789 				com_err(program_name, ENOMEM, "%s",
1790 					_("in malloc for bad_blocks_filename"));
1791 				exit(1);
1792 			}
1793 			strcpy(bad_blocks_filename, optarg);
1794 			break;
1795 		case 'L':
1796 			volume_label = optarg;
1797 			if (strlen(volume_label) > EXT2_LABEL_LEN) {
1798 				volume_label[EXT2_LABEL_LEN] = '\0';
1799 				fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1800 					volume_label);
1801 			}
1802 			break;
1803 		case 'm':
1804 			reserved_ratio = strtod(optarg, &tmp);
1805 			if ( *tmp || reserved_ratio > 50 ||
1806 			     reserved_ratio < 0) {
1807 				com_err(program_name, 0,
1808 					_("invalid reserved blocks percent - %s"),
1809 					optarg);
1810 				exit(1);
1811 			}
1812 			break;
1813 		case 'M':
1814 			mount_dir = optarg;
1815 			break;
1816 		case 'n':
1817 			noaction++;
1818 			break;
1819 		case 'N':
1820 			num_inodes = strtoul(optarg, &tmp, 0);
1821 			if (*tmp) {
1822 				com_err(program_name, 0,
1823 					_("bad num inodes - %s"), optarg);
1824 					exit(1);
1825 			}
1826 			break;
1827 		case 'o':
1828 			creator_os = optarg;
1829 			break;
1830 		case 'O':
1831 			retval = ext2fs_resize_mem(fs_features_size,
1832 				   fs_features_size + 1 + strlen(optarg),
1833 						   &fs_features);
1834 			if (retval) {
1835 				com_err(program_name, retval,
1836 				     _("while allocating fs_feature string"));
1837 				exit(1);
1838 			}
1839 			if (fs_features_size)
1840 				strcat(fs_features, ",");
1841 			else
1842 				fs_features[0] = 0;
1843 			strcat(fs_features, optarg);
1844 			fs_features_size += 1 + strlen(optarg);
1845 			break;
1846 		case 'q':
1847 			quiet = 1;
1848 			break;
1849 		case 'r':
1850 			r_opt = strtoul(optarg, &tmp, 0);
1851 			if (*tmp) {
1852 				com_err(program_name, 0,
1853 					_("bad revision level - %s"), optarg);
1854 				exit(1);
1855 			}
1856 			if (r_opt > EXT2_MAX_SUPP_REV) {
1857 				com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1858 					_("while trying to create revision %d"), r_opt);
1859 				exit(1);
1860 			}
1861 			fs_param.s_rev_level = r_opt;
1862 			break;
1863 		case 's':	/* deprecated */
1864 			s_opt = atoi(optarg);
1865 			break;
1866 		case 'S':
1867 			super_only = 1;
1868 			break;
1869 		case 't':
1870 			if (fs_type) {
1871 				com_err(program_name, 0, "%s",
1872 				    _("The -t option may only be used once"));
1873 				exit(1);
1874 			}
1875 			fs_type = strdup(optarg);
1876 			break;
1877 		case 'T':
1878 			if (usage_types) {
1879 				com_err(program_name, 0, "%s",
1880 				    _("The -T option may only be used once"));
1881 				exit(1);
1882 			}
1883 			usage_types = strdup(optarg);
1884 			break;
1885 		case 'U':
1886 			fs_uuid = optarg;
1887 			break;
1888 		case 'v':
1889 			verbose = 1;
1890 			break;
1891 		case 'V':
1892 			/* Print version number and exit */
1893 			show_version_only++;
1894 			break;
1895 		case 'z':
1896 			undo_file = optarg;
1897 			break;
1898 		default:
1899 			usage();
1900 		}
1901 	}
1902 	if ((optind == argc) && !show_version_only)
1903 		usage();
1904 	device_name = argv[optind++];
1905 
1906 	if (!quiet || show_version_only)
1907 		fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1908 			 E2FSPROGS_DATE);
1909 
1910 	if (show_version_only) {
1911 		fprintf(stderr, _("\tUsing %s\n"),
1912 			error_message(EXT2_ET_BASE));
1913 		exit(0);
1914 	}
1915 
1916 	/*
1917 	 * If there's no blocksize specified and there is a journal
1918 	 * device, use it to figure out the blocksize
1919 	 */
1920 	if (blocksize <= 0 && journal_device) {
1921 		ext2_filsys	jfs;
1922 		io_manager	io_ptr;
1923 
1924 #ifdef CONFIG_TESTIO_DEBUG
1925 		if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1926 			io_ptr = test_io_manager;
1927 			test_io_backing_manager = unix_io_manager;
1928 		} else
1929 #endif
1930 			io_ptr = unix_io_manager;
1931 		retval = ext2fs_open(journal_device,
1932 				     EXT2_FLAG_JOURNAL_DEV_OK, 0,
1933 				     0, io_ptr, &jfs);
1934 		if (retval) {
1935 			com_err(program_name, retval,
1936 				_("while trying to open journal device %s\n"),
1937 				journal_device);
1938 			exit(1);
1939 		}
1940 		if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1941 			com_err(program_name, 0,
1942 				_("Journal dev blocksize (%d) smaller than "
1943 				  "minimum blocksize %d\n"), jfs->blocksize,
1944 				-blocksize);
1945 			exit(1);
1946 		}
1947 		blocksize = jfs->blocksize;
1948 		printf(_("Using journal device's blocksize: %d\n"), blocksize);
1949 		fs_param.s_log_block_size =
1950 			int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1951 		ext2fs_close_free(&jfs);
1952 	}
1953 
1954 	if (optind < argc) {
1955 		fs_blocks_count = parse_num_blocks2(argv[optind++],
1956 						   fs_param.s_log_block_size);
1957 		if (!fs_blocks_count) {
1958 			com_err(program_name, 0,
1959 				_("invalid blocks '%s' on device '%s'"),
1960 				argv[optind - 1], device_name);
1961 			exit(1);
1962 		}
1963 	}
1964 	if (optind < argc)
1965 		usage();
1966 
1967 	profile_get_integer(profile, "options", "sync_kludge", 0, 0,
1968 			    &sync_kludge);
1969 	tmp = getenv("MKE2FS_SYNC");
1970 	if (tmp)
1971 		sync_kludge = atoi(tmp);
1972 
1973 	profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1974 			    &proceed_delay);
1975 
1976 	if (fs_blocks_count)
1977 		explicit_fssize = 1;
1978 
1979 	check_mount(device_name, force, _("filesystem"));
1980 
1981 	/* Determine the size of the device (if possible) */
1982 	if (noaction && fs_blocks_count) {
1983 		dev_size = fs_blocks_count;
1984 		retval = 0;
1985 	} else
1986 		retval = ext2fs_get_device_size2(device_name,
1987 						 EXT2_BLOCK_SIZE(&fs_param),
1988 						 &dev_size);
1989 	if (retval == ENOENT) {
1990 		int fd;
1991 
1992 		if (!explicit_fssize) {
1993 			fprintf(stderr,
1994 				_("The file %s does not exist and no "
1995 				  "size was specified.\n"), device_name);
1996 			exit(1);
1997 		}
1998 		fd = ext2fs_open_file(device_name,
1999 				      O_CREAT | O_WRONLY, 0666);
2000 		if (fd < 0) {
2001 			retval = errno;
2002 		} else {
2003 			dev_size = 0;
2004 			retval = 0;
2005 			close(fd);
2006 			printf(_("Creating regular file %s\n"), device_name);
2007 		}
2008 	}
2009 	if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
2010 		com_err(program_name, retval, "%s",
2011 			_("while trying to determine filesystem size"));
2012 		exit(1);
2013 	}
2014 	if (!fs_blocks_count) {
2015 		if (retval == EXT2_ET_UNIMPLEMENTED) {
2016 			com_err(program_name, 0, "%s",
2017 				_("Couldn't determine device size; you "
2018 				"must specify\nthe size of the "
2019 				"filesystem\n"));
2020 			exit(1);
2021 		} else {
2022 			if (dev_size == 0) {
2023 				com_err(program_name, 0, "%s",
2024 				_("Device size reported to be zero.  "
2025 				  "Invalid partition specified, or\n\t"
2026 				  "partition table wasn't reread "
2027 				  "after running fdisk, due to\n\t"
2028 				  "a modified partition being busy "
2029 				  "and in use.  You may need to reboot\n\t"
2030 				  "to re-read your partition table.\n"
2031 				  ));
2032 				exit(1);
2033 			}
2034 			fs_blocks_count = dev_size;
2035 			if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
2036 				fs_blocks_count &= ~((blk64_t) ((sys_page_size /
2037 					     EXT2_BLOCK_SIZE(&fs_param))-1));
2038 		}
2039 	} else if (!force && is_device && (fs_blocks_count > dev_size)) {
2040 		com_err(program_name, 0, "%s",
2041 			_("Filesystem larger than apparent device size."));
2042 		proceed_question(proceed_delay);
2043 	}
2044 
2045 	if (!fs_type)
2046 		profile_get_string(profile, "devices", device_name,
2047 				   "fs_type", 0, &fs_type);
2048 	if (!usage_types)
2049 		profile_get_string(profile, "devices", device_name,
2050 				   "usage_types", 0, &usage_types);
2051 	if (!creator_os)
2052 		profile_get_string(profile, "defaults", "creator_os", 0,
2053 				   0, &creator_os);
2054 
2055 	/*
2056 	 * We have the file system (or device) size, so we can now
2057 	 * determine the appropriate file system types so the fs can
2058 	 * be appropriately configured.
2059 	 */
2060 	fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
2061 				 fs_blocks_count ? fs_blocks_count : dev_size,
2062 				 argv[0]);
2063 	if (!fs_types) {
2064 		fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
2065 		exit(1);
2066 	}
2067 
2068 	/* Figure out what features should be enabled */
2069 
2070 	tmp = NULL;
2071 	if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
2072 		tmp = get_string_from_profile(fs_types, "base_features",
2073 		      "sparse_super,large_file,filetype,resize_inode,dir_index");
2074 		edit_feature(tmp, &fs_param.s_feature_compat);
2075 		free(tmp);
2076 
2077 		/* And which mount options as well */
2078 		tmp = get_string_from_profile(fs_types, "default_mntopts",
2079 					      "acl,user_xattr");
2080 		edit_mntopts(tmp, &fs_param.s_default_mount_opts);
2081 		if (tmp)
2082 			free(tmp);
2083 
2084 		for (cpp = fs_types; *cpp; cpp++) {
2085 			tmp = NULL;
2086 			profile_get_string(profile, "fs_types", *cpp,
2087 					   "features", "", &tmp);
2088 			if (tmp && *tmp)
2089 				edit_feature(tmp, &fs_param.s_feature_compat);
2090 			if (tmp)
2091 				free(tmp);
2092 		}
2093 		tmp = get_string_from_profile(fs_types, "default_features",
2094 					      "");
2095 	}
2096 	/* Mask off features which aren't supported by the Hurd */
2097 	if (for_hurd(creator_os)) {
2098 		ext2fs_clear_feature_filetype(&fs_param);
2099 		ext2fs_clear_feature_huge_file(&fs_param);
2100 		ext2fs_clear_feature_metadata_csum(&fs_param);
2101 		ext2fs_clear_feature_ea_inode(&fs_param);
2102 		ext2fs_clear_feature_casefold(&fs_param);
2103 	}
2104 	edit_feature(fs_features ? fs_features : tmp,
2105 		     &fs_param.s_feature_compat);
2106 	if (tmp)
2107 		free(tmp);
2108 	(void) ext2fs_free_mem(&fs_features);
2109 	/*
2110 	 * If the user specified features incompatible with the Hurd, complain
2111 	 */
2112 	if (for_hurd(creator_os)) {
2113 		if (ext2fs_has_feature_filetype(&fs_param)) {
2114 			fprintf(stderr, "%s", _("The HURD does not support the "
2115 						"filetype feature.\n"));
2116 			exit(1);
2117 		}
2118 		if (ext2fs_has_feature_huge_file(&fs_param)) {
2119 			fprintf(stderr, "%s", _("The HURD does not support the "
2120 						"huge_file feature.\n"));
2121 			exit(1);
2122 		}
2123 		if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2124 			fprintf(stderr, "%s", _("The HURD does not support the "
2125 						"metadata_csum feature.\n"));
2126 			exit(1);
2127 		}
2128 		if (ext2fs_has_feature_ea_inode(&fs_param)) {
2129 			fprintf(stderr, "%s", _("The HURD does not support the "
2130 						"ea_inode feature.\n"));
2131 			exit(1);
2132 		}
2133 	}
2134 
2135 	/* Get the hardware sector sizes, if available */
2136 	retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2137 	if (retval) {
2138 		com_err(program_name, retval, "%s",
2139 			_("while trying to determine hardware sector size"));
2140 		exit(1);
2141 	}
2142 	retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2143 	if (retval) {
2144 		com_err(program_name, retval, "%s",
2145 			_("while trying to determine physical sector size"));
2146 		exit(1);
2147 	}
2148 
2149 	tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2150 	if (tmp != NULL)
2151 		lsector_size = atoi(tmp);
2152 	tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2153 	if (tmp != NULL)
2154 		psector_size = atoi(tmp);
2155 
2156 	/* Older kernels may not have physical/logical distinction */
2157 	if (!psector_size)
2158 		psector_size = lsector_size;
2159 
2160 	if (blocksize <= 0) {
2161 		use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2162 
2163 		if (use_bsize == -1) {
2164 			use_bsize = sys_page_size;
2165 			if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2166 				use_bsize = 4096;
2167 		}
2168 		if (lsector_size && use_bsize < lsector_size)
2169 			use_bsize = lsector_size;
2170 		if ((blocksize < 0) && (use_bsize < (-blocksize)))
2171 			use_bsize = -blocksize;
2172 		blocksize = use_bsize;
2173 		fs_blocks_count /= (blocksize / 1024);
2174 	} else {
2175 		if (blocksize < lsector_size) {			/* Impossible */
2176 			com_err(program_name, EINVAL, "%s",
2177 				_("while setting blocksize; too small "
2178 				  "for device\n"));
2179 			exit(1);
2180 		} else if ((blocksize < psector_size) &&
2181 			   (psector_size <= sys_page_size)) {	/* Suboptimal */
2182 			fprintf(stderr, _("Warning: specified blocksize %d is "
2183 				"less than device physical sectorsize %d\n"),
2184 				blocksize, psector_size);
2185 		}
2186 	}
2187 
2188 	fs_param.s_log_block_size =
2189 		int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2190 
2191 	/*
2192 	 * We now need to do a sanity check of fs_blocks_count for
2193 	 * 32-bit vs 64-bit block number support.
2194 	 */
2195 	if ((fs_blocks_count > MAX_32_NUM) &&
2196 	    ext2fs_has_feature_64bit(&fs_param))
2197 		ext2fs_clear_feature_resize_inode(&fs_param);
2198 	if ((fs_blocks_count > MAX_32_NUM) &&
2199 	    !ext2fs_has_feature_64bit(&fs_param) &&
2200 	    get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2201 		ext2fs_set_feature_64bit(&fs_param);
2202 		ext2fs_clear_feature_resize_inode(&fs_param);
2203 	}
2204 	if ((fs_blocks_count > MAX_32_NUM) &&
2205 	    !ext2fs_has_feature_64bit(&fs_param)) {
2206 		fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2207 				  "too big to be expressed\n\t"
2208 				  "in 32 bits using a blocksize of %d.\n"),
2209 			program_name, (unsigned long long) fs_blocks_count,
2210 			device_name, EXT2_BLOCK_SIZE(&fs_param));
2211 		exit(1);
2212 	}
2213 	/*
2214 	 * Guard against group descriptor count overflowing... Mostly to avoid
2215 	 * strange results for absurdly large devices.  This is in log2:
2216 	 * (blocksize) * (bits per byte) * (maximum number of block groups)
2217 	 */
2218 	if (fs_blocks_count >
2219 	    (1ULL << (EXT2_BLOCK_SIZE_BITS(&fs_param) + 3 + 32)) - 1) {
2220 		fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2221 				  "too big to create\n\t"
2222 				  "a filesystem using a blocksize of %d.\n"),
2223 			program_name, (unsigned long long) fs_blocks_count,
2224 			device_name, EXT2_BLOCK_SIZE(&fs_param));
2225 		exit(1);
2226 	}
2227 
2228 	ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2229 
2230 	if (ext2fs_has_feature_journal_dev(&fs_param)) {
2231 		int i;
2232 
2233 		for (i=0; fs_types[i]; i++) {
2234 			free(fs_types[i]);
2235 			fs_types[i] = 0;
2236 		}
2237 		fs_types[0] = strdup("journal");
2238 		fs_types[1] = 0;
2239 	}
2240 
2241 	if (verbose) {
2242 		fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2243 		print_str_list(fs_types);
2244 	}
2245 
2246 	if (r_opt == EXT2_GOOD_OLD_REV &&
2247 	    (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2248 	     fs_param.s_feature_ro_compat)) {
2249 		fprintf(stderr, "%s", _("Filesystem features not supported "
2250 					"with revision 0 filesystems\n"));
2251 		exit(1);
2252 	}
2253 
2254 	if (s_opt > 0) {
2255 		if (r_opt == EXT2_GOOD_OLD_REV) {
2256 			fprintf(stderr, "%s",
2257 				_("Sparse superblocks not supported "
2258 				  "with revision 0 filesystems\n"));
2259 			exit(1);
2260 		}
2261 		ext2fs_set_feature_sparse_super(&fs_param);
2262 	} else if (s_opt == 0)
2263 		ext2fs_clear_feature_sparse_super(&fs_param);
2264 
2265 	if (journal_size != 0) {
2266 		if (r_opt == EXT2_GOOD_OLD_REV) {
2267 			fprintf(stderr, "%s", _("Journals not supported with "
2268 						"revision 0 filesystems\n"));
2269 			exit(1);
2270 		}
2271 		ext2fs_set_feature_journal(&fs_param);
2272 	}
2273 
2274 	/* Get reserved_ratio from profile if not specified on cmd line. */
2275 	if (reserved_ratio < 0.0) {
2276 		reserved_ratio = get_double_from_profile(
2277 					fs_types, "reserved_ratio", 5.0);
2278 		if (reserved_ratio > 50 || reserved_ratio < 0) {
2279 			com_err(program_name, 0,
2280 				_("invalid reserved blocks percent - %lf"),
2281 				reserved_ratio);
2282 			exit(1);
2283 		}
2284 	}
2285 
2286 	if (ext2fs_has_feature_journal_dev(&fs_param)) {
2287 		reserved_ratio = 0;
2288 		fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2289 		fs_param.s_feature_compat = 0;
2290 		fs_param.s_feature_ro_compat &=
2291 					EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2292  	}
2293 
2294 	/* Check the user's mkfs options for 64bit */
2295 	if (ext2fs_has_feature_64bit(&fs_param) &&
2296 	    !ext2fs_has_feature_extents(&fs_param)) {
2297 		printf("%s", _("Extents MUST be enabled for a 64-bit "
2298 			       "filesystem.  Pass -O extents to rectify.\n"));
2299 		exit(1);
2300 	}
2301 
2302 	/* Set first meta blockgroup via an environment variable */
2303 	/* (this is mostly for debugging purposes) */
2304 	if (ext2fs_has_feature_meta_bg(&fs_param) &&
2305 	    (tmp = getenv("MKE2FS_FIRST_META_BG")))
2306 		fs_param.s_first_meta_bg = atoi(tmp);
2307 	if (ext2fs_has_feature_bigalloc(&fs_param)) {
2308 		if (!cluster_size)
2309 			cluster_size = get_int_from_profile(fs_types,
2310 							    "cluster_size",
2311 							    blocksize*16);
2312 		fs_param.s_log_cluster_size =
2313 			int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2314 		if (fs_param.s_log_cluster_size &&
2315 		    fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2316 			com_err(program_name, 0, "%s",
2317 				_("The cluster size may not be "
2318 				  "smaller than the block size.\n"));
2319 			exit(1);
2320 		}
2321 	} else if (cluster_size) {
2322 		com_err(program_name, 0, "%s",
2323 			_("specifying a cluster size requires the "
2324 			  "bigalloc feature"));
2325 		exit(1);
2326 	} else
2327 		fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2328 
2329 	if (inode_ratio == 0) {
2330 		inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2331 						   8192);
2332 		if (inode_ratio < blocksize)
2333 			inode_ratio = blocksize;
2334 		if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2335 			inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2336 	}
2337 
2338 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2339 	retval = get_device_geometry(device_name, blocksize,
2340 				     psector_size, &dev_param);
2341 	if (retval < 0) {
2342 		fprintf(stderr,
2343 			_("warning: Unable to get device geometry for %s\n"),
2344 			device_name);
2345 	} else {
2346 		/* setting stripe/stride to blocksize is pointless */
2347 		if (dev_param.min_io > (unsigned) blocksize)
2348 			fs_param.s_raid_stride = dev_param.min_io / blocksize;
2349 		if (dev_param.opt_io > (unsigned) blocksize) {
2350 			fs_param.s_raid_stripe_width =
2351 						dev_param.opt_io / blocksize;
2352 		}
2353 
2354 		if (dev_param.alignment_offset) {
2355 			printf(_("%s alignment is offset by %lu bytes.\n"),
2356 			       device_name, dev_param.alignment_offset);
2357 			printf(_("This may result in very poor performance, "
2358 				  "(re)-partitioning suggested.\n"));
2359 		}
2360 
2361 		if (dev_param.dax && blocksize != sys_page_size) {
2362 			fprintf(stderr,
2363 				_("%s is capable of DAX but current block size "
2364 				  "%u is different from system page size %u so "
2365 				  "filesystem will not support DAX.\n"),
2366 				device_name, blocksize, sys_page_size);
2367 		}
2368 	}
2369 #endif
2370 
2371 	num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2372 
2373 	blocksize = EXT2_BLOCK_SIZE(&fs_param);
2374 
2375 	/*
2376 	 * Initialize s_desc_size so that the parse_extended_opts()
2377 	 * can correctly handle "-E resize=NNN" if the 64-bit option
2378 	 * is set.
2379 	 */
2380 	if (ext2fs_has_feature_64bit(&fs_param))
2381 		fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2382 
2383 	/* This check should happen beyond the last assignment to blocksize */
2384 	if (blocksize > sys_page_size) {
2385 		if (!force) {
2386 			com_err(program_name, 0,
2387 				_("%d-byte blocks too big for system (max %d)"),
2388 				blocksize, sys_page_size);
2389 			proceed_question(proceed_delay);
2390 		}
2391 		fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2392 				  "(max %d), forced to continue\n"),
2393 			blocksize, sys_page_size);
2394 	}
2395 
2396 	/* Metadata checksumming wasn't totally stable before 3.18. */
2397 	if (is_before_linux_ver(3, 18, 0) &&
2398 	    ext2fs_has_feature_metadata_csum(&fs_param))
2399 		fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2400 			"improved stability of the metadata and journal "
2401 			"checksum features.\n"));
2402 
2403 	/*
2404 	 * On newer kernels we do have lazy_itable_init support. So pick the
2405 	 * right default in case ext4 module is not loaded.
2406 	 */
2407 	if (is_before_linux_ver(2, 6, 37))
2408 		lazy_itable_init = 0;
2409 	else
2410 		lazy_itable_init = 1;
2411 
2412 	if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2413 		lazy_itable_init = 1;
2414 
2415 	lazy_itable_init = get_bool_from_profile(fs_types,
2416 						 "lazy_itable_init",
2417 						 lazy_itable_init);
2418 	discard = get_bool_from_profile(fs_types, "discard" , discard);
2419 	journal_flags |= get_bool_from_profile(fs_types,
2420 					       "lazy_journal_init", 0) ?
2421 					       EXT2_MKJOURNAL_LAZYINIT : 0;
2422 	journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2423 
2424 	if (!journal_location_string)
2425 		journal_location_string = get_string_from_profile(fs_types,
2426 						"journal_location", "");
2427 	if ((journal_location == ~0ULL) && journal_location_string &&
2428 	    *journal_location_string)
2429 		journal_location = parse_num_blocks2(journal_location_string,
2430 						fs_param.s_log_block_size);
2431 	free(journal_location_string);
2432 
2433 	packed_meta_blocks = get_bool_from_profile(fs_types,
2434 						   "packed_meta_blocks", 0);
2435 	if (packed_meta_blocks)
2436 		journal_location = 0;
2437 
2438 	if (ext2fs_has_feature_casefold(&fs_param)) {
2439 		char *ef, *en = get_string_from_profile(fs_types,
2440 							"encoding", "utf8");
2441 		int encoding = e2p_str2encoding(en);
2442 
2443 		if (encoding < 0) {
2444 			com_err(program_name, 0,
2445 				_("Unknown filename encoding from profile: %s"),
2446 				en);
2447 			exit(1);
2448 		}
2449 		free(en);
2450 		fs_param.s_encoding = encoding;
2451 		ef = get_string_from_profile(fs_types, "encoding_flags", NULL);
2452 		if (ef) {
2453 			if (e2p_str2encoding_flags(encoding, ef,
2454 					&fs_param.s_encoding_flags) < 0) {
2455 				com_err(program_name, 0,
2456 			_("Unknown encoding flags from profile: %s"), ef);
2457 				exit(1);
2458 			}
2459 			free(ef);
2460 		} else
2461 			fs_param.s_encoding_flags =
2462 				e2p_get_encoding_flags(encoding);
2463 	}
2464 
2465 	/* Get options from profile */
2466 	for (cpp = fs_types; *cpp; cpp++) {
2467 		tmp = NULL;
2468 		profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2469 			if (tmp && *tmp)
2470 				parse_extended_opts(&fs_param, tmp);
2471 			free(tmp);
2472 	}
2473 
2474 	if (extended_opts)
2475 		parse_extended_opts(&fs_param, extended_opts);
2476 
2477 	if (explicit_fssize == 0 && offset > 0) {
2478 		fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2479 		ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2480 		fprintf(stderr,
2481 			_("\nWarning: offset specified without an "
2482 			  "explicit file system size.\n"
2483 			  "Creating a file system with %llu blocks "
2484 			  "but this might\n"
2485 			  "not be what you want.\n\n"),
2486 			(unsigned long long) fs_blocks_count);
2487 	}
2488 
2489 	if (quotatype_bits & QUOTA_PRJ_BIT)
2490 		ext2fs_set_feature_project(&fs_param);
2491 
2492 	if (ext2fs_has_feature_project(&fs_param)) {
2493 		quotatype_bits |= QUOTA_PRJ_BIT;
2494 		if (inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2495 			com_err(program_name, 0,
2496 				_("%d byte inodes are too small for "
2497 				  "project quota"),
2498 				inode_size);
2499 			exit(1);
2500 		}
2501 		if (inode_size == 0) {
2502 			inode_size = get_int_from_profile(fs_types,
2503 							  "inode_size", 0);
2504 			if (inode_size <= EXT2_GOOD_OLD_INODE_SIZE*2)
2505 				inode_size = EXT2_GOOD_OLD_INODE_SIZE*2;
2506 		}
2507 	}
2508 
2509 	/* Don't allow user to set both metadata_csum and uninit_bg bits. */
2510 	if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2511 	    ext2fs_has_feature_gdt_csum(&fs_param))
2512 		ext2fs_clear_feature_gdt_csum(&fs_param);
2513 
2514 	/* Can't support bigalloc feature without extents feature */
2515 	if (ext2fs_has_feature_bigalloc(&fs_param) &&
2516 	    !ext2fs_has_feature_extents(&fs_param)) {
2517 		com_err(program_name, 0, "%s",
2518 			_("Can't support bigalloc feature without "
2519 			  "extents feature"));
2520 		exit(1);
2521 	}
2522 
2523 	if (ext2fs_has_feature_meta_bg(&fs_param) &&
2524 	    ext2fs_has_feature_resize_inode(&fs_param)) {
2525 		fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2526 					"features are not compatible.\n"
2527 					"They can not be both enabled "
2528 					"simultaneously.\n"));
2529 		exit(1);
2530 	}
2531 
2532 	if (!quiet && ext2fs_has_feature_bigalloc(&fs_param) &&
2533 	    EXT2_CLUSTER_SIZE(&fs_param) > 16 * EXT2_BLOCK_SIZE(&fs_param))
2534 		fprintf(stderr, "%s", _("\nWarning: bigalloc file systems "
2535 				"with a cluster size greater than\n"
2536 				"16 times the block size is considered "
2537 				"experimental\n"));
2538 
2539 	/*
2540 	 * Since sparse_super is the default, we would only have a problem
2541 	 * here if it was explicitly disabled.
2542 	 */
2543 	if (ext2fs_has_feature_resize_inode(&fs_param) &&
2544 	    !ext2fs_has_feature_sparse_super(&fs_param)) {
2545 		com_err(program_name, 0, "%s",
2546 			_("reserved online resize blocks not supported "
2547 			  "on non-sparse filesystem"));
2548 		exit(1);
2549 	}
2550 
2551 	if (fs_param.s_blocks_per_group) {
2552 		if (fs_param.s_blocks_per_group < 256 ||
2553 		    fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2554 			com_err(program_name, 0, "%s",
2555 				_("blocks per group count out of range"));
2556 			exit(1);
2557 		}
2558 	}
2559 
2560 	/*
2561 	 * If the bigalloc feature is enabled, then the -g option will
2562 	 * specify the number of clusters per group.
2563 	 */
2564 	if (ext2fs_has_feature_bigalloc(&fs_param)) {
2565 		fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2566 		fs_param.s_blocks_per_group = 0;
2567 	}
2568 
2569 	if (inode_size == 0)
2570 		inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2571 	if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2572 		flex_bg_size = get_uint_from_profile(fs_types,
2573 						     "flex_bg_size", 16);
2574 	if (flex_bg_size) {
2575 		if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2576 			com_err(program_name, 0, "%s",
2577 				_("Flex_bg feature not enabled, so "
2578 				  "flex_bg size may not be specified"));
2579 			exit(1);
2580 		}
2581 		fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2582 	}
2583 
2584 	if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2585 		if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2586 		    inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2587 		    inode_size & (inode_size - 1)) {
2588 			com_err(program_name, 0,
2589 				_("invalid inode size %d (min %d/max %d)"),
2590 				inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2591 				blocksize);
2592 			exit(1);
2593 		}
2594 		fs_param.s_inode_size = inode_size;
2595 	}
2596 
2597 	/*
2598 	 * If inode size is 128 and inline data is enabled, we need
2599 	 * to notify users that inline data will never be useful.
2600 	 */
2601 	if (ext2fs_has_feature_inline_data(&fs_param) &&
2602 	    fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2603 		com_err(program_name, 0,
2604 			_("%d byte inodes are too small for inline data; "
2605 			  "specify larger size"),
2606 			fs_param.s_inode_size);
2607 		exit(1);
2608 	}
2609 
2610 	/*
2611 	 * Warn the user that filesystems with 128-byte inodes will
2612 	 * not work properly beyond 2038.  This can be suppressed via
2613 	 * a boolean in the mke2fs.conf file, and we will disable this
2614 	 * warning for file systems created for the GNU Hurd.
2615 	 */
2616 	if (inode_size == EXT2_GOOD_OLD_INODE_SIZE &&
2617 	    get_bool_from_profile(fs_types, "warn_y2038_dates", 1))
2618 		printf(
2619 _("128-byte inodes cannot handle dates beyond 2038 and are deprecated\n"));
2620 
2621 	/* Make sure number of inodes specified will fit in 32 bits */
2622 	if (num_inodes == 0) {
2623 		unsigned long long n;
2624 		n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2625 		if (n > MAX_32_NUM) {
2626 			if (ext2fs_has_feature_64bit(&fs_param))
2627 				num_inodes = MAX_32_NUM;
2628 			else {
2629 				com_err(program_name, 0,
2630 					_("too many inodes (%llu), raise "
2631 					  "inode ratio?"),
2632 					(unsigned long long) n);
2633 				exit(1);
2634 			}
2635 		}
2636 	} else if (num_inodes > MAX_32_NUM) {
2637 		com_err(program_name, 0,
2638 			_("too many inodes (%llu), specify < 2^32 inodes"),
2639 			(unsigned long long) num_inodes);
2640 		exit(1);
2641 	}
2642 	/*
2643 	 * Calculate number of inodes based on the inode ratio
2644 	 */
2645 	fs_param.s_inodes_count = num_inodes ? num_inodes :
2646 		(ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2647 
2648 	if ((((unsigned long long)fs_param.s_inodes_count) *
2649 	     (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2650 	    ((ext2fs_blocks_count(&fs_param)) *
2651 	     EXT2_BLOCK_SIZE(&fs_param))) {
2652 		com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2653 					  "(%u) too big for a\n\t"
2654 					  "filesystem with %llu blocks, "
2655 					  "specify higher inode_ratio (-i)\n\t"
2656 					  "or lower inode count (-N).\n"),
2657 			inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2658 			fs_param.s_inodes_count,
2659 			(unsigned long long) ext2fs_blocks_count(&fs_param));
2660 		exit(1);
2661 	}
2662 
2663 	/*
2664 	 * Calculate number of blocks to reserve
2665 	 */
2666 	ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2667 				  ext2fs_blocks_count(&fs_param) / 100.0);
2668 
2669 	if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2670 		if (num_backups >= 1)
2671 			fs_param.s_backup_bgs[0] = 1;
2672 		if (num_backups >= 2)
2673 			fs_param.s_backup_bgs[1] = ~0;
2674 	}
2675 
2676 	free(fs_type);
2677 	free(usage_types);
2678 
2679 	/* The isatty() test is so we don't break existing scripts */
2680 	flags = CREATE_FILE;
2681 	if (isatty(0) && isatty(1) && !offset)
2682 		flags |= CHECK_FS_EXIST;
2683 	if (!quiet)
2684 		flags |= VERBOSE_CREATE;
2685 	if (!explicit_fssize)
2686 		flags |= NO_SIZE;
2687 	if (!check_plausibility(device_name, flags, &is_device) && !force)
2688 		proceed_question(proceed_delay);
2689 }
2690 
should_do_undo(const char * name)2691 static int should_do_undo(const char *name)
2692 {
2693 	errcode_t retval;
2694 	io_channel channel;
2695 	__u16	s_magic;
2696 	struct ext2_super_block super;
2697 	io_manager manager = unix_io_manager;
2698 	int csum_flag, force_undo;
2699 
2700 	csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2701 		    ext2fs_has_feature_gdt_csum(&fs_param);
2702 	force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2703 	if (!force_undo && (!csum_flag || !lazy_itable_init))
2704 		return 0;
2705 
2706 	retval = manager->open(name, IO_FLAG_EXCLUSIVE,  &channel);
2707 	if (retval) {
2708 		/*
2709 		 * We don't handle error cases instead we
2710 		 * declare that the file system doesn't exist
2711 		 * and let the rest of mke2fs take care of
2712 		 * error
2713 		 */
2714 		retval = 0;
2715 		goto open_err_out;
2716 	}
2717 
2718 	io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2719 	retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2720 	if (retval) {
2721 		retval = 0;
2722 		goto err_out;
2723 	}
2724 
2725 #if defined(WORDS_BIGENDIAN)
2726 	s_magic = ext2fs_swab16(super.s_magic);
2727 #else
2728 	s_magic = super.s_magic;
2729 #endif
2730 
2731 	if (s_magic == EXT2_SUPER_MAGIC)
2732 		retval = 1;
2733 
2734 err_out:
2735 	io_channel_close(channel);
2736 
2737 open_err_out:
2738 
2739 	return retval;
2740 }
2741 
mke2fs_setup_tdb(const char * name,io_manager * io_ptr)2742 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2743 {
2744 	errcode_t retval = ENOMEM;
2745 	char *tdb_dir = NULL, *tdb_file = NULL;
2746 	char *dev_name, *tmp_name;
2747 	int free_tdb_dir = 0;
2748 
2749 	/* (re)open a specific undo file */
2750 	if (undo_file && undo_file[0] != 0) {
2751 		retval = set_undo_io_backing_manager(*io_ptr);
2752 		if (retval)
2753 			goto err;
2754 		*io_ptr = undo_io_manager;
2755 		retval = set_undo_io_backup_file(undo_file);
2756 		if (retval)
2757 			goto err;
2758 		printf(_("Overwriting existing filesystem; this can be undone "
2759 			 "using the command:\n"
2760 			 "    e2undo %s %s\n\n"), undo_file, name);
2761 		return retval;
2762 	}
2763 
2764 	/*
2765 	 * Configuration via a conf file would be
2766 	 * nice
2767 	 */
2768 	tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2769 	if (!tdb_dir) {
2770 		profile_get_string(profile, "defaults",
2771 				   "undo_dir", 0, "/var/lib/e2fsprogs",
2772 				   &tdb_dir);
2773 		free_tdb_dir = 1;
2774 	}
2775 
2776 	if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2777 	    access(tdb_dir, W_OK)) {
2778 		if (free_tdb_dir)
2779 			free(tdb_dir);
2780 		return 0;
2781 	}
2782 
2783 	tmp_name = strdup(name);
2784 	if (!tmp_name)
2785 		goto errout;
2786 	dev_name = basename(tmp_name);
2787 	tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2788 	if (!tdb_file) {
2789 		free(tmp_name);
2790 		goto errout;
2791 	}
2792 	sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2793 	free(tmp_name);
2794 
2795 	if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2796 		retval = errno;
2797 		com_err(program_name, retval,
2798 			_("while trying to delete %s"), tdb_file);
2799 		goto errout;
2800 	}
2801 
2802 	retval = set_undo_io_backing_manager(*io_ptr);
2803 	if (retval)
2804 		goto errout;
2805 	*io_ptr = undo_io_manager;
2806 	retval = set_undo_io_backup_file(tdb_file);
2807 	if (retval)
2808 		goto errout;
2809 	printf(_("Overwriting existing filesystem; this can be undone "
2810 		 "using the command:\n"
2811 		 "    e2undo %s %s\n\n"), tdb_file, name);
2812 
2813 	if (free_tdb_dir)
2814 		free(tdb_dir);
2815 	free(tdb_file);
2816 	return 0;
2817 
2818 errout:
2819 	if (free_tdb_dir)
2820 		free(tdb_dir);
2821 	free(tdb_file);
2822 err:
2823 	com_err(program_name, retval, "%s",
2824 		_("while trying to setup undo file\n"));
2825 	return retval;
2826 }
2827 
mke2fs_discard_device(ext2_filsys fs)2828 static int mke2fs_discard_device(ext2_filsys fs)
2829 {
2830 	struct ext2fs_numeric_progress_struct progress;
2831 	blk64_t blocks = ext2fs_blocks_count(fs->super);
2832 	blk64_t count = DISCARD_STEP_MB;
2833 	blk64_t cur = 0;
2834 	int retval = 0;
2835 
2836 	/*
2837 	 * Let's try if discard really works on the device, so
2838 	 * we do not print numeric progress resulting in failure
2839 	 * afterwards.
2840 	 */
2841 	retval = io_channel_discard(fs->io, 0, 1);
2842 	if (retval)
2843 		return retval;
2844 
2845 	count *= (1024 * 1024);
2846 	count /= fs->blocksize;
2847 
2848 	ext2fs_numeric_progress_init(fs, &progress,
2849 				     _("Discarding device blocks: "),
2850 				     blocks);
2851 	while (cur < blocks) {
2852 		ext2fs_numeric_progress_update(fs, &progress, cur);
2853 
2854 		if (cur + count > blocks)
2855 			count = blocks - cur;
2856 
2857 		retval = io_channel_discard(fs->io, cur, count);
2858 		if (retval)
2859 			break;
2860 		cur += count;
2861 	}
2862 
2863 	if (retval) {
2864 		ext2fs_numeric_progress_close(fs, &progress,
2865 				      _("failed - "));
2866 		if (!quiet)
2867 			printf("%s\n",error_message(retval));
2868 	} else
2869 		ext2fs_numeric_progress_close(fs, &progress,
2870 				      _("done                            \n"));
2871 
2872 	return retval;
2873 }
2874 
fix_cluster_bg_counts(ext2_filsys fs)2875 static void fix_cluster_bg_counts(ext2_filsys fs)
2876 {
2877 	blk64_t		block, num_blocks, last_block, next;
2878 	blk64_t		tot_free = 0;
2879 	errcode_t	retval;
2880 	dgrp_t		group = 0;
2881 	int		grp_free = 0;
2882 
2883 	num_blocks = ext2fs_blocks_count(fs->super);
2884 	last_block = ext2fs_group_last_block2(fs, group);
2885 	block = fs->super->s_first_data_block;
2886 	while (block < num_blocks) {
2887 		retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2888 						block, last_block, &next);
2889 		if (retval == 0)
2890 			block = next;
2891 		else {
2892 			block = last_block + 1;
2893 			goto next_bg;
2894 		}
2895 
2896 		retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2897 						block, last_block, &next);
2898 		if (retval)
2899 			next = last_block + 1;
2900 		grp_free += EXT2FS_NUM_B2C(fs, next - block);
2901 		tot_free += next - block;
2902 		block = next;
2903 
2904 		if (block > last_block) {
2905 		next_bg:
2906 			ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2907 			ext2fs_group_desc_csum_set(fs, group);
2908 			grp_free = 0;
2909 			group++;
2910 			last_block = ext2fs_group_last_block2(fs, group);
2911 		}
2912 	}
2913 	ext2fs_free_blocks_count_set(fs->super, tot_free);
2914 }
2915 
create_quota_inodes(ext2_filsys fs)2916 static int create_quota_inodes(ext2_filsys fs)
2917 {
2918 	quota_ctx_t qctx;
2919 	errcode_t retval;
2920 
2921 	retval = quota_init_context(&qctx, fs, quotatype_bits);
2922 	if (retval) {
2923 		com_err(program_name, retval,
2924 			_("while initializing quota context"));
2925 		exit(1);
2926 	}
2927 	quota_compute_usage(qctx);
2928 	retval = quota_write_inode(qctx, quotatype_bits);
2929 	if (retval) {
2930 		com_err(program_name, retval,
2931 			_("while writing quota inodes"));
2932 		exit(1);
2933 	}
2934 	quota_release_context(&qctx);
2935 
2936 	return 0;
2937 }
2938 
set_error_behavior(ext2_filsys fs)2939 static errcode_t set_error_behavior(ext2_filsys fs)
2940 {
2941 	char	*arg = NULL;
2942 	short	errors = fs->super->s_errors;
2943 
2944 	arg = get_string_from_profile(fs_types, "errors", NULL);
2945 	if (arg == NULL)
2946 		goto try_user;
2947 
2948 	if (strcmp(arg, "continue") == 0)
2949 		errors = EXT2_ERRORS_CONTINUE;
2950 	else if (strcmp(arg, "remount-ro") == 0)
2951 		errors = EXT2_ERRORS_RO;
2952 	else if (strcmp(arg, "panic") == 0)
2953 		errors = EXT2_ERRORS_PANIC;
2954 	else {
2955 		com_err(program_name, 0,
2956 			_("bad error behavior in profile - %s"),
2957 			arg);
2958 		free(arg);
2959 		return EXT2_ET_INVALID_ARGUMENT;
2960 	}
2961 	free(arg);
2962 
2963 try_user:
2964 	if (errors_behavior)
2965 		errors = errors_behavior;
2966 
2967 	fs->super->s_errors = errors;
2968 	return 0;
2969 }
2970 
main(int argc,char * argv[])2971 int main (int argc, char *argv[])
2972 {
2973 	errcode_t	retval = 0;
2974 	ext2_filsys	fs;
2975 	badblocks_list	bb_list = 0;
2976 	badblocks_iterate	bb_iter;
2977 	blk_t		blk;
2978 	struct ext2fs_journal_params	jparams = {0};
2979 	unsigned int	i, checkinterval;
2980 	int		max_mnt_count;
2981 	int		val, hash_alg;
2982 	int		flags;
2983 	int		old_bitmaps;
2984 	io_manager	io_ptr;
2985 	char		opt_string[40];
2986 	char		*hash_alg_str;
2987 	int		itable_zeroed = 0;
2988 	blk64_t		overhead;
2989 
2990 #ifdef ENABLE_NLS
2991 	setlocale(LC_MESSAGES, "");
2992 	setlocale(LC_CTYPE, "");
2993 	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2994 	textdomain(NLS_CAT_NAME);
2995 	set_com_err_gettext(gettext);
2996 #endif
2997 	PRS(argc, argv);
2998 
2999 #ifdef CONFIG_TESTIO_DEBUG
3000 	if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
3001 		io_ptr = test_io_manager;
3002 		test_io_backing_manager = unix_io_manager;
3003 	} else
3004 #endif
3005 		io_ptr = unix_io_manager;
3006 
3007 	if (undo_file != NULL || should_do_undo(device_name)) {
3008 		retval = mke2fs_setup_tdb(device_name, &io_ptr);
3009 		if (retval)
3010 			exit(1);
3011 	}
3012 
3013 	/*
3014 	 * Initialize the superblock....
3015 	 */
3016 	flags = EXT2_FLAG_EXCLUSIVE;
3017 	if (direct_io)
3018 		flags |= EXT2_FLAG_DIRECT_IO;
3019 	profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
3020 			    &old_bitmaps);
3021 	if (!old_bitmaps)
3022 		flags |= EXT2_FLAG_64BITS;
3023 	/*
3024 	 * By default, we print how many inode tables or block groups
3025 	 * or whatever we've written so far.  The quiet flag disables
3026 	 * this, along with a lot of other output.
3027 	 */
3028 	if (!quiet)
3029 		flags |= EXT2_FLAG_PRINT_PROGRESS;
3030 	if (android_sparse_file) {
3031 		char *android_sparse_params = malloc(strlen(device_name) + 48);
3032 
3033 		if (!android_sparse_params) {
3034 			com_err(program_name, ENOMEM, "%s",
3035 				_("in malloc for android_sparse_params"));
3036 			exit(1);
3037 		}
3038 		sprintf(android_sparse_params, "(%s):%u:%u",
3039 			 device_name, fs_param.s_blocks_count,
3040 			 1024 << fs_param.s_log_block_size);
3041 		retval = ext2fs_initialize(android_sparse_params, flags,
3042 					   &fs_param, sparse_io_manager, &fs);
3043 		free(android_sparse_params);
3044 	} else
3045 		retval = ext2fs_initialize(device_name, flags, &fs_param,
3046 					   io_ptr, &fs);
3047 	if (retval) {
3048 		com_err(device_name, retval, "%s",
3049 			_("while setting up superblock"));
3050 		exit(1);
3051 	}
3052 	fs->progress_ops = &ext2fs_numeric_progress_ops;
3053 
3054 	/* Set the error behavior */
3055 	retval = set_error_behavior(fs);
3056 	if (retval)
3057 		usage();
3058 
3059 	/* Check the user's mkfs options for metadata checksumming */
3060 	if (!quiet &&
3061 	    !ext2fs_has_feature_journal_dev(fs->super) &&
3062 	    ext2fs_has_feature_metadata_csum(fs->super)) {
3063 		if (!ext2fs_has_feature_extents(fs->super))
3064 			printf("%s",
3065 			       _("Extents are not enabled.  The file extent "
3066 				 "tree can be checksummed, whereas block maps "
3067 				 "cannot.  Not enabling extents reduces the "
3068 				 "coverage of metadata checksumming.  "
3069 				 "Pass -O extents to rectify.\n"));
3070 		if (!ext2fs_has_feature_64bit(fs->super))
3071 			printf("%s",
3072 			       _("64-bit filesystem support is not enabled.  "
3073 				 "The larger fields afforded by this feature "
3074 				 "enable full-strength checksumming.  "
3075 				 "Pass -O 64bit to rectify.\n"));
3076 	}
3077 
3078 	if (ext2fs_has_feature_csum_seed(fs->super) &&
3079 	    !ext2fs_has_feature_metadata_csum(fs->super)) {
3080 		printf("%s", _("The metadata_csum_seed feature "
3081 			       "requires the metadata_csum feature.\n"));
3082 		exit(1);
3083 	}
3084 
3085 	/* Calculate journal blocks */
3086 	if (!journal_device && ((journal_size) ||
3087 	    ext2fs_has_feature_journal(&fs_param)))
3088 		figure_journal_size(&jparams, journal_size, journal_fc_size, fs);
3089 
3090 	sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
3091 		32768 : fs->blocksize * 8);
3092 	io_channel_set_options(fs->io, opt_string);
3093 	if (offset) {
3094 		sprintf(opt_string, "offset=%llu", (unsigned long long) offset);
3095 		io_channel_set_options(fs->io, opt_string);
3096 	}
3097 
3098 	/* Can't undo discard ... */
3099 	if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
3100 		retval = mke2fs_discard_device(fs);
3101 		if (!retval && io_channel_discard_zeroes_data(fs->io)) {
3102 			if (verbose)
3103 				printf("%s",
3104 				       _("Discard succeeded and will return "
3105 					 "0s - skipping inode table wipe\n"));
3106 			lazy_itable_init = 1;
3107 			itable_zeroed = 1;
3108 			zero_hugefile = 0;
3109 		}
3110 	}
3111 
3112 	if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
3113 		fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
3114 
3115 	if (ext2fs_has_feature_flex_bg(&fs_param) ||
3116 	    ext2fs_has_feature_huge_file(&fs_param) ||
3117 	    ext2fs_has_feature_gdt_csum(&fs_param) ||
3118 	    ext2fs_has_feature_dir_nlink(&fs_param) ||
3119 	    ext2fs_has_feature_metadata_csum(&fs_param) ||
3120 	    ext2fs_has_feature_extra_isize(&fs_param))
3121 		fs->super->s_kbytes_written = 1;
3122 
3123 	/*
3124 	 * Wipe out the old on-disk superblock
3125 	 */
3126 	if (!noaction)
3127 		zap_sector(fs, 2, 6);
3128 
3129 	/*
3130 	 * Parse or generate a UUID for the filesystem
3131 	 */
3132 	if (fs_uuid) {
3133 		if ((strcasecmp(fs_uuid, "null") == 0) ||
3134 		    (strcasecmp(fs_uuid, "clear") == 0)) {
3135 			uuid_clear(fs->super->s_uuid);
3136 		} else if (strcasecmp(fs_uuid, "time") == 0) {
3137 			uuid_generate_time(fs->super->s_uuid);
3138 		} else if (strcasecmp(fs_uuid, "random") == 0) {
3139 			uuid_generate(fs->super->s_uuid);
3140 		} else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
3141 			com_err(device_name, 0, "could not parse UUID: %s\n",
3142 				fs_uuid);
3143 			exit(1);
3144 		}
3145 	} else
3146 		uuid_generate(fs->super->s_uuid);
3147 
3148 	if (ext2fs_has_feature_csum_seed(fs->super))
3149 		fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
3150 				fs->super->s_uuid, sizeof(fs->super->s_uuid));
3151 
3152 	ext2fs_init_csum_seed(fs);
3153 
3154 	/*
3155 	 * Initialize the directory index variables
3156 	 */
3157 	hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
3158 					       "half_md4");
3159 	hash_alg = e2p_string2hash(hash_alg_str);
3160 	free(hash_alg_str);
3161 	fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
3162 		EXT2_HASH_HALF_MD4;
3163 
3164 	if (memcmp(fs_param.s_hash_seed, zero_buf,
3165 		sizeof(fs_param.s_hash_seed)) != 0) {
3166 		memcpy(fs->super->s_hash_seed, fs_param.s_hash_seed,
3167 			sizeof(fs->super->s_hash_seed));
3168 	} else
3169 		uuid_generate((unsigned char *) fs->super->s_hash_seed);
3170 
3171 	/*
3172 	 * Periodic checks can be enabled/disabled via config file.
3173 	 * Note we override the kernel include file's idea of what the default
3174 	 * check interval (never) should be.  It's a good idea to check at
3175 	 * least *occasionally*, specially since servers will never rarely get
3176 	 * to reboot, since Linux is so robust these days.  :-)
3177 	 *
3178 	 * 180 days (six months) seems like a good value.
3179 	 */
3180 #ifdef EXT2_DFL_CHECKINTERVAL
3181 #undef EXT2_DFL_CHECKINTERVAL
3182 #endif
3183 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
3184 
3185 	if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
3186 		fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
3187 		fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
3188 		/*
3189 		 * Add "jitter" to the superblock's check interval so that we
3190 		 * don't check all the filesystems at the same time.  We use a
3191 		 * kludgy hack of using the UUID to derive a random jitter value
3192 		 */
3193 		for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
3194 			val += fs->super->s_uuid[i];
3195 		fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
3196 	} else
3197 		fs->super->s_max_mnt_count = -1;
3198 
3199 	/*
3200 	 * Override the creator OS, if applicable
3201 	 */
3202 	if (creator_os && !set_os(fs->super, creator_os)) {
3203 		com_err (program_name, 0, _("unknown os - %s"), creator_os);
3204 		exit(1);
3205 	}
3206 
3207 	/*
3208 	 * For the Hurd, we will turn off filetype since it doesn't
3209 	 * support it.
3210 	 */
3211 	if (fs->super->s_creator_os == EXT2_OS_HURD)
3212 		ext2fs_clear_feature_filetype(fs->super);
3213 
3214 	/*
3215 	 * Set the volume label...
3216 	 */
3217 	if (volume_label) {
3218 		memset(fs->super->s_volume_name, 0,
3219 		       sizeof(fs->super->s_volume_name));
3220 		strncpy((char *) fs->super->s_volume_name, volume_label,
3221 			sizeof(fs->super->s_volume_name));
3222 	}
3223 
3224 	/*
3225 	 * Set the last mount directory
3226 	 */
3227 	if (mount_dir) {
3228 		memset(fs->super->s_last_mounted, 0,
3229 		       sizeof(fs->super->s_last_mounted));
3230 		strncpy((char *) fs->super->s_last_mounted, mount_dir,
3231 			sizeof(fs->super->s_last_mounted));
3232 	}
3233 
3234 	/* Set current default encryption algorithms for data and
3235 	 * filename encryption */
3236 	if (ext2fs_has_feature_encrypt(fs->super)) {
3237 		fs->super->s_encrypt_algos[0] =
3238 			EXT4_ENCRYPTION_MODE_AES_256_XTS;
3239 		fs->super->s_encrypt_algos[1] =
3240 			EXT4_ENCRYPTION_MODE_AES_256_CTS;
3241 	}
3242 
3243 	if (ext2fs_has_feature_metadata_csum(fs->super))
3244 		fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3245 
3246 	if (!quiet || noaction)
3247 		show_stats(fs);
3248 
3249 	if (noaction)
3250 		exit(0);
3251 
3252 	if (ext2fs_has_feature_journal_dev(fs->super)) {
3253 		create_journal_dev(fs);
3254 		printf("\n");
3255 		exit(ext2fs_close_free(&fs) ? 1 : 0);
3256 	}
3257 
3258 	if (bad_blocks_filename)
3259 		read_bb_file(fs, &bb_list, bad_blocks_filename);
3260 	if (cflag)
3261 		test_disk(fs, &bb_list);
3262 	handle_bad_blocks(fs, bb_list);
3263 
3264 	fs->stride = fs_stride = fs->super->s_raid_stride;
3265 	if (!quiet)
3266 		printf("%s", _("Allocating group tables: "));
3267 	if (ext2fs_has_feature_flex_bg(fs->super) &&
3268 	    packed_meta_blocks)
3269 		retval = packed_allocate_tables(fs);
3270 	else
3271 		retval = ext2fs_allocate_tables(fs);
3272 	if (retval) {
3273 		com_err(program_name, retval, "%s",
3274 			_("while trying to allocate filesystem tables"));
3275 		exit(1);
3276 	}
3277 	if (!quiet)
3278 		printf("%s", _("done                            \n"));
3279 
3280 	/*
3281 	 * Unmark bad blocks to calculate overhead, because metadata
3282 	 * blocks and bad blocks can land on the same allocation cluster.
3283 	 */
3284 	if (bb_list) {
3285 		retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3286 							     &bb_iter);
3287 		if (retval) {
3288 			com_err("ext2fs_badblocks_list_iterate_begin", retval,
3289 				"%s", _("while unmarking bad blocks"));
3290 			exit(1);
3291 		}
3292 		while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3293 			ext2fs_unmark_block_bitmap2(fs->block_map, blk);
3294 		ext2fs_badblocks_list_iterate_end(bb_iter);
3295 	}
3296 
3297 	retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3298 	if (retval) {
3299 		com_err(program_name, retval, "%s",
3300 			_("\n\twhile converting subcluster bitmap"));
3301 		exit(1);
3302 	}
3303 
3304 	retval = ext2fs_count_used_clusters(fs, fs->super->s_first_data_block,
3305 					ext2fs_blocks_count(fs->super) - 1,
3306 					&overhead);
3307 	if (retval) {
3308 		com_err(program_name, retval, "%s",
3309 			_("while calculating overhead"));
3310 		exit(1);
3311 	}
3312 
3313 	if (bb_list) {
3314 		retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3315 							     &bb_iter);
3316 		if (retval) {
3317 			com_err("ext2fs_badblocks_list_iterate_begin", retval,
3318 				"%s", _("while marking bad blocks as used"));
3319 			exit(1);
3320 		}
3321 		while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3322 			ext2fs_mark_block_bitmap2(fs->block_map, blk);
3323 		ext2fs_badblocks_list_iterate_end(bb_iter);
3324 	}
3325 
3326 	if (super_only) {
3327 		check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3328 		printf(_("%s may be further corrupted by superblock rewrite\n"),
3329 		       device_name);
3330 		if (!force)
3331 			proceed_question(proceed_delay);
3332 		fs->super->s_state |= EXT2_ERROR_FS;
3333 		fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3334 		/*
3335 		 * The command "mke2fs -S" is used to recover
3336 		 * corrupted file systems, so do not mark any of the
3337 		 * inodes as unused; we want e2fsck to consider all
3338 		 * inodes as potentially containing recoverable data.
3339 		 */
3340 		if (ext2fs_has_group_desc_csum(fs)) {
3341 			for (i = 0; i < fs->group_desc_count; i++)
3342 				ext2fs_bg_itable_unused_set(fs, i, 0);
3343 		}
3344 	} else {
3345 		/* rsv must be a power of two (64kB is MD RAID sb alignment) */
3346 		blk64_t rsv = 65536 / fs->blocksize;
3347 		blk64_t blocks = ext2fs_blocks_count(fs->super);
3348 		blk64_t start;
3349 		blk64_t ret_blk;
3350 
3351 #ifdef ZAP_BOOTBLOCK
3352 		zap_sector(fs, 0, 2);
3353 #endif
3354 
3355 		/*
3356 		 * Wipe out any old MD RAID (or other) metadata at the end
3357 		 * of the device.  This will also verify that the device is
3358 		 * as large as we think.  Be careful with very small devices.
3359 		 */
3360 		start = (blocks & ~(rsv - 1));
3361 		if (start > rsv)
3362 			start -= rsv;
3363 		if (start > 0)
3364 			retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3365 						    &ret_blk, NULL);
3366 
3367 		if (retval) {
3368 			com_err(program_name, retval,
3369 				_("while zeroing block %llu at end of filesystem"),
3370 				(unsigned long long) ret_blk);
3371 		}
3372 		write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3373 		create_root_dir(fs);
3374 		create_lost_and_found(fs);
3375 		reserve_inodes(fs);
3376 		create_bad_block_inode(fs, bb_list);
3377 		if (ext2fs_has_feature_resize_inode(fs->super)) {
3378 			retval = ext2fs_create_resize_inode(fs);
3379 			if (retval) {
3380 				com_err("ext2fs_create_resize_inode", retval,
3381 					"%s",
3382 				_("while reserving blocks for online resize"));
3383 				exit(1);
3384 			}
3385 		}
3386 	}
3387 
3388 	if (journal_device) {
3389 		ext2_filsys	jfs;
3390 
3391 		if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3392 					NULL) && !force)
3393 			proceed_question(proceed_delay);
3394 		check_mount(journal_device, force, _("journal"));
3395 
3396 		retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3397 				     EXT2_FLAG_JOURNAL_DEV_OK, 0,
3398 				     fs->blocksize, unix_io_manager, &jfs);
3399 		if (retval) {
3400 			com_err(program_name, retval,
3401 				_("while trying to open journal device %s\n"),
3402 				journal_device);
3403 			exit(1);
3404 		}
3405 		if (!quiet) {
3406 			printf(_("Adding journal to device %s: "),
3407 			       journal_device);
3408 			fflush(stdout);
3409 		}
3410 		retval = ext2fs_add_journal_device(fs, jfs);
3411 		if(retval) {
3412 			com_err (program_name, retval,
3413 				 _("\n\twhile trying to add journal to device %s"),
3414 				 journal_device);
3415 			exit(1);
3416 		}
3417 		if (!quiet)
3418 			printf("%s", _("done\n"));
3419 		ext2fs_close_free(&jfs);
3420 		free(journal_device);
3421 	} else if ((journal_size) ||
3422 		   ext2fs_has_feature_journal(&fs_param)) {
3423 		overhead += EXT2FS_NUM_B2C(fs, jparams.num_journal_blocks + jparams.num_fc_blocks);
3424 		if (super_only) {
3425 			printf("%s", _("Skipping journal creation in super-only mode\n"));
3426 			fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3427 			goto no_journal;
3428 		}
3429 
3430 		if (!jparams.num_journal_blocks) {
3431 			ext2fs_clear_feature_journal(fs->super);
3432 			goto no_journal;
3433 		}
3434 		if (!quiet) {
3435 			printf(_("Creating journal (%u blocks): "),
3436 			       jparams.num_journal_blocks + jparams.num_fc_blocks);
3437 			fflush(stdout);
3438 		}
3439 		retval = ext2fs_add_journal_inode3(fs, &jparams,
3440 						   journal_location,
3441 						   journal_flags);
3442 		if (retval) {
3443 			com_err(program_name, retval, "%s",
3444 				_("\n\twhile trying to create journal"));
3445 			exit(1);
3446 		}
3447 		if (!quiet)
3448 			printf("%s", _("done\n"));
3449 	}
3450 no_journal:
3451 	if (!super_only &&
3452 	    ext2fs_has_feature_mmp(fs->super)) {
3453 		retval = ext2fs_mmp_init(fs);
3454 		if (retval) {
3455 			fprintf(stderr, "%s",
3456 				_("\nError while enabling multiple "
3457 				  "mount protection feature."));
3458 			exit(1);
3459 		}
3460 		if (!quiet)
3461 			printf(_("Multiple mount protection is enabled "
3462 				 "with update interval %d seconds.\n"),
3463 			       fs->super->s_mmp_update_interval);
3464 	}
3465 
3466 	overhead += fs->super->s_first_data_block;
3467 	if (!super_only)
3468 		fs->super->s_overhead_clusters = overhead;
3469 
3470 	if (ext2fs_has_feature_bigalloc(&fs_param))
3471 		fix_cluster_bg_counts(fs);
3472 	if (ext2fs_has_feature_quota(&fs_param))
3473 		create_quota_inodes(fs);
3474 
3475 	retval = mk_hugefiles(fs, device_name);
3476 	if (retval)
3477 		com_err(program_name, retval, "while creating huge files");
3478 	/* Copy files from the specified directory */
3479 	if (src_root_dir) {
3480 		if (!quiet)
3481 			printf("%s", _("Copying files into the device: "));
3482 
3483 		retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3484 				     EXT2_ROOT_INO);
3485 		if (retval) {
3486 			com_err(program_name, retval, "%s",
3487 				_("while populating file system"));
3488 			exit(1);
3489 		} else if (!quiet)
3490 			printf("%s", _("done\n"));
3491 	}
3492 
3493 	if (!quiet)
3494 		printf("%s", _("Writing superblocks and "
3495 		       "filesystem accounting information: "));
3496 	checkinterval = fs->super->s_checkinterval;
3497 	max_mnt_count = fs->super->s_max_mnt_count;
3498 	retval = ext2fs_close_free(&fs);
3499 	if (retval) {
3500 		com_err(program_name, retval, "%s",
3501 			_("while writing out and closing file system"));
3502 		retval = 1;
3503 	} else if (!quiet) {
3504 		printf("%s", _("done\n\n"));
3505 		if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3506 			print_check_message(max_mnt_count, checkinterval);
3507 	}
3508 
3509 	remove_error_table(&et_ext2_error_table);
3510 	remove_error_table(&et_prof_error_table);
3511 	profile_release(profile);
3512 	for (i=0; fs_types[i]; i++)
3513 		free(fs_types[i]);
3514 	free(fs_types);
3515 	return retval;
3516 }
3517