2 * ls.c - List the contents of an ext2fs superblock
4 * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr>
5 * Laboratoire MASI, Institut Blaise Pascal
6 * Universite Pierre et Marie Curie (Paris VI)
8 * Copyright (C) 1995, 1996, 1997 Theodore Ts'o <tytso@mit.edu>
11 * This file may be redistributed under the terms of the GNU Library
12 * General Public License, version 2.
19 #include <sys/types.h>
26 #include "support/quotaio.h"
28 static void print_user (unsigned short uid
, FILE *f
)
32 fprintf(f
, "%u ", uid
);
35 fprintf(f
, "(user unknown)\n");
37 fprintf(f
, "(user %s)\n", pw
->pw_name
);
40 static void print_group (unsigned short gid
, FILE *f
)
44 fprintf(f
, "%u ", gid
);
47 fprintf(f
, "(group unknown)\n");
49 fprintf(f
, "(group %s)\n", gr
->gr_name
);
52 #define MONTH_INT (86400 * 30)
53 #define WEEK_INT (86400 * 7)
54 #define DAY_INT (86400)
55 #define HOUR_INT (60 * 60)
56 #define MINUTE_INT (60)
58 static const char *interval_string(unsigned int secs
)
60 static char buf
[256], tmp
[80];
68 if (secs
>= MONTH_INT
) {
69 num
= secs
/ MONTH_INT
;
70 secs
-= num
*MONTH_INT
;
71 sprintf(buf
, "%d month%s", num
, (num
>1) ? "s" : "");
73 if (secs
>= WEEK_INT
) {
74 num
= secs
/ WEEK_INT
;
76 sprintf(tmp
, "%s%d week%s", buf
[0] ? ", " : "",
77 num
, (num
>1) ? "s" : "");
80 if (secs
>= DAY_INT
) {
83 sprintf(tmp
, "%s%d day%s", buf
[0] ? ", " : "",
84 num
, (num
>1) ? "s" : "");
90 min
= secs
/ MINUTE_INT
;
91 secs
-= min
*MINUTE_INT
;
92 sprintf(tmp
, "%s%d:%02d:%02d", buf
[0] ? ", " : "",
99 static void print_features(struct ext2_super_block
* s
, FILE *f
)
101 #ifdef EXT2_DYNAMIC_REV
103 __u32
*mask
= &s
->s_feature_compat
, m
;
105 fprintf(f
, "Filesystem features: ");
106 for (i
=0; i
<3; i
++,mask
++) {
107 for (j
=0,m
=1; j
< 32; j
++, m
<<=1) {
109 fprintf(f
, " %s", e2p_feature2string(i
, m
));
115 fprintf(f
, " (none)");
120 static void print_mntopts(struct ext2_super_block
* s
, FILE *f
)
122 #ifdef EXT2_DYNAMIC_REV
124 __u32 mask
= s
->s_default_mount_opts
, m
;
126 fprintf(f
, "Default mount options: ");
127 if (mask
& EXT3_DEFM_JMODE
) {
128 fprintf(f
, " %s", e2p_mntopt2string(mask
& EXT3_DEFM_JMODE
));
131 for (i
=0,m
=1; i
< 32; i
++, m
<<=1) {
132 if (m
& EXT3_DEFM_JMODE
)
135 fprintf(f
, " %s", e2p_mntopt2string(m
));
140 fprintf(f
, " (none)");
145 static void print_super_flags(struct ext2_super_block
* s
, FILE *f
)
152 fputs("Filesystem flags: ", f
);
153 if (s
->s_flags
& EXT2_FLAGS_SIGNED_HASH
) {
154 fputs("signed_directory_hash ", f
);
157 if (s
->s_flags
& EXT2_FLAGS_UNSIGNED_HASH
) {
158 fputs("unsigned_directory_hash ", f
);
161 if (s
->s_flags
& EXT2_FLAGS_TEST_FILESYS
) {
162 fputs("test_filesystem ", f
);
168 fputs("(none)\n", f
);
171 static __u64
e2p_blocks_count(struct ext2_super_block
*super
)
173 return super
->s_blocks_count
|
174 (ext2fs_has_feature_64bit(super
) ?
175 (__u64
) super
->s_blocks_count_hi
<< 32 : 0);
178 static __u64
e2p_r_blocks_count(struct ext2_super_block
*super
)
180 return super
->s_r_blocks_count
|
181 (ext2fs_has_feature_64bit(super
) ?
182 (__u64
) super
->s_r_blocks_count_hi
<< 32 : 0);
185 static __u64
e2p_free_blocks_count(struct ext2_super_block
*super
)
187 return super
->s_free_blocks_count
|
188 (ext2fs_has_feature_64bit(super
) ?
189 (__u64
) super
->s_free_blocks_hi
<< 32 : 0);
192 #ifndef EXT2_INODE_SIZE
193 #define EXT2_INODE_SIZE(s) sizeof(struct ext2_inode)
196 #ifndef EXT2_GOOD_OLD_REV
197 #define EXT2_GOOD_OLD_REV 0
200 static const char *checksum_type(__u8 type
)
203 case EXT2_CRC32C_CHKSUM
:
210 static const char *quota_prefix
[MAXQUOTAS
] = {
211 [USRQUOTA
] = "User quota inode:",
212 [GRPQUOTA
] = "Group quota inode:",
213 [PRJQUOTA
] = "Project quota inode:",
217 * Convert type of quota to written representation
219 static const char *quota_type2prefix(enum quota_type qtype
)
221 return quota_prefix
[qtype
];
224 void list_super2(struct ext2_super_block
* sb
, FILE *f
)
226 int inode_blocks_per_group
;
229 enum quota_type qtype
;
231 inode_blocks_per_group
= (((sb
->s_inodes_per_group
*
232 EXT2_INODE_SIZE(sb
)) +
233 EXT2_BLOCK_SIZE(sb
) - 1) /
234 EXT2_BLOCK_SIZE(sb
));
235 if (sb
->s_volume_name
[0])
236 fprintf(f
, "Filesystem volume name: %.*s\n",
237 EXT2_LEN_STR(sb
->s_volume_name
));
239 fprintf(f
, "Filesystem volume name: <none>\n");
240 if (sb
->s_last_mounted
[0])
241 fprintf(f
, "Last mounted on: %.*s\n",
242 EXT2_LEN_STR(sb
->s_last_mounted
));
244 fprintf(f
, "Last mounted on: <not available>\n");
245 fprintf(f
, "Filesystem UUID: %s\n", e2p_uuid2str(sb
->s_uuid
));
246 fprintf(f
, "Filesystem magic number: 0x%04X\n", sb
->s_magic
);
247 fprintf(f
, "Filesystem revision #: %d", sb
->s_rev_level
);
248 if (sb
->s_rev_level
== EXT2_GOOD_OLD_REV
) {
249 fprintf(f
, " (original)\n");
250 #ifdef EXT2_DYNAMIC_REV
251 } else if (sb
->s_rev_level
== EXT2_DYNAMIC_REV
) {
252 fprintf(f
, " (dynamic)\n");
255 fprintf(f
, " (unknown)\n");
256 print_features(sb
, f
);
257 print_super_flags(sb
, f
);
258 print_mntopts(sb
, f
);
259 if (sb
->s_mount_opts
[0])
260 fprintf(f
, "Mount options: %.*s\n",
261 EXT2_LEN_STR(sb
->s_mount_opts
));
262 fprintf(f
, "Filesystem state: ");
263 print_fs_state (f
, sb
->s_state
);
265 fprintf(f
, "Errors behavior: ");
266 print_fs_errors(f
, sb
->s_errors
);
268 str
= e2p_os2string(sb
->s_creator_os
);
269 fprintf(f
, "Filesystem OS type: %s\n", str
);
271 fprintf(f
, "Inode count: %u\n", sb
->s_inodes_count
);
272 fprintf(f
, "Block count: %llu\n", e2p_blocks_count(sb
));
273 fprintf(f
, "Reserved block count: %llu\n", e2p_r_blocks_count(sb
));
274 if (sb
->s_overhead_clusters
)
275 fprintf(f
, "Overhead clusters: %u\n",
276 sb
->s_overhead_clusters
);
277 fprintf(f
, "Free blocks: %llu\n", e2p_free_blocks_count(sb
));
278 fprintf(f
, "Free inodes: %u\n", sb
->s_free_inodes_count
);
279 fprintf(f
, "First block: %u\n", sb
->s_first_data_block
);
280 fprintf(f
, "Block size: %u\n", EXT2_BLOCK_SIZE(sb
));
281 if (ext2fs_has_feature_bigalloc(sb
))
282 fprintf(f
, "Cluster size: %u\n",
283 EXT2_CLUSTER_SIZE(sb
));
285 fprintf(f
, "Fragment size: %u\n",
286 EXT2_CLUSTER_SIZE(sb
));
287 if (ext2fs_has_feature_64bit(sb
))
288 fprintf(f
, "Group descriptor size: %u\n", sb
->s_desc_size
);
289 if (sb
->s_reserved_gdt_blocks
)
290 fprintf(f
, "Reserved GDT blocks: %u\n",
291 sb
->s_reserved_gdt_blocks
);
292 fprintf(f
, "Blocks per group: %u\n", sb
->s_blocks_per_group
);
293 if (ext2fs_has_feature_bigalloc(sb
))
294 fprintf(f
, "Clusters per group: %u\n",
295 sb
->s_clusters_per_group
);
297 fprintf(f
, "Fragments per group: %u\n",
298 sb
->s_clusters_per_group
);
299 fprintf(f
, "Inodes per group: %u\n", sb
->s_inodes_per_group
);
300 fprintf(f
, "Inode blocks per group: %u\n", inode_blocks_per_group
);
301 if (sb
->s_raid_stride
)
302 fprintf(f
, "RAID stride: %u\n",
304 if (sb
->s_raid_stripe_width
)
305 fprintf(f
, "RAID stripe width: %u\n",
306 sb
->s_raid_stripe_width
);
307 if (sb
->s_first_meta_bg
)
308 fprintf(f
, "First meta block group: %u\n",
309 sb
->s_first_meta_bg
);
310 if (sb
->s_log_groups_per_flex
)
311 fprintf(f
, "Flex block group size: %u\n",
312 1 << sb
->s_log_groups_per_flex
);
313 if (sb
->s_mkfs_time
) {
314 tm
= sb
->s_mkfs_time
;
315 fprintf(f
, "Filesystem created: %s", ctime(&tm
));
318 fprintf(f
, "Last mount time: %s",
319 sb
->s_mtime
? ctime(&tm
) : "n/a\n");
321 fprintf(f
, "Last write time: %s", ctime(&tm
));
322 fprintf(f
, "Mount count: %u\n", sb
->s_mnt_count
);
323 fprintf(f
, "Maximum mount count: %d\n", sb
->s_max_mnt_count
);
324 tm
= sb
->s_lastcheck
;
325 fprintf(f
, "Last checked: %s", ctime(&tm
));
326 fprintf(f
, "Check interval: %u (%s)\n", sb
->s_checkinterval
,
327 interval_string(sb
->s_checkinterval
));
328 if (sb
->s_checkinterval
)
332 next
= sb
->s_lastcheck
+ sb
->s_checkinterval
;
333 fprintf(f
, "Next check after: %s", ctime(&next
));
335 #define POW2(x) ((__u64) 1 << (x))
336 if (sb
->s_kbytes_written
) {
337 fprintf(f
, "Lifetime writes: ");
338 if (sb
->s_kbytes_written
< POW2(13))
339 fprintf(f
, "%llu kB\n", sb
->s_kbytes_written
);
340 else if (sb
->s_kbytes_written
< POW2(23))
341 fprintf(f
, "%llu MB\n",
342 (sb
->s_kbytes_written
+ POW2(9)) >> 10);
343 else if (sb
->s_kbytes_written
< POW2(33))
344 fprintf(f
, "%llu GB\n",
345 (sb
->s_kbytes_written
+ POW2(19)) >> 20);
346 else if (sb
->s_kbytes_written
< POW2(43))
347 fprintf(f
, "%llu TB\n",
348 (sb
->s_kbytes_written
+ POW2(29)) >> 30);
350 fprintf(f
, "%llu PB\n",
351 (sb
->s_kbytes_written
+ POW2(39)) >> 40);
353 fprintf(f
, "Reserved blocks uid: ");
354 print_user(sb
->s_def_resuid
, f
);
355 fprintf(f
, "Reserved blocks gid: ");
356 print_group(sb
->s_def_resgid
, f
);
357 if (sb
->s_rev_level
>= EXT2_DYNAMIC_REV
) {
358 fprintf(f
, "First inode: %d\n", sb
->s_first_ino
);
359 fprintf(f
, "Inode size: %d\n", sb
->s_inode_size
);
360 if (sb
->s_min_extra_isize
)
361 fprintf(f
, "Required extra isize: %d\n",
362 sb
->s_min_extra_isize
);
363 if (sb
->s_want_extra_isize
)
364 fprintf(f
, "Desired extra isize: %d\n",
365 sb
->s_want_extra_isize
);
367 if (!e2p_is_null_uuid(sb
->s_journal_uuid
))
368 fprintf(f
, "Journal UUID: %s\n",
369 e2p_uuid2str(sb
->s_journal_uuid
));
370 if (sb
->s_journal_inum
)
371 fprintf(f
, "Journal inode: %u\n",
373 if (sb
->s_journal_dev
)
374 fprintf(f
, "Journal device: 0x%04x\n",
376 if (sb
->s_last_orphan
)
377 fprintf(f
, "First orphan inode: %u\n",
379 if (ext2fs_has_feature_dir_index(sb
) ||
380 sb
->s_def_hash_version
)
381 fprintf(f
, "Default directory hash: %s\n",
382 e2p_hash2string(sb
->s_def_hash_version
));
383 if (!e2p_is_null_uuid(sb
->s_hash_seed
))
384 fprintf(f
, "Directory Hash Seed: %s\n",
385 e2p_uuid2str(sb
->s_hash_seed
));
386 if (sb
->s_jnl_backup_type
) {
387 fprintf(f
, "Journal backup: ");
388 switch (sb
->s_jnl_backup_type
) {
390 fprintf(f
, "inode blocks\n");
393 fprintf(f
, "type %u\n", sb
->s_jnl_backup_type
);
396 if (sb
->s_backup_bgs
[0] || sb
->s_backup_bgs
[1]) {
397 fprintf(f
, "Backup block groups: ");
398 if (sb
->s_backup_bgs
[0])
399 fprintf(f
, "%u ", sb
->s_backup_bgs
[0]);
400 if (sb
->s_backup_bgs
[1])
401 fprintf(f
, "%u ", sb
->s_backup_bgs
[1]);
404 if (sb
->s_snapshot_inum
) {
405 fprintf(f
, "Snapshot inode: %u\n",
406 sb
->s_snapshot_inum
);
407 fprintf(f
, "Snapshot ID: %u\n",
409 fprintf(f
, "Snapshot reserved blocks: %llu\n",
410 sb
->s_snapshot_r_blocks_count
);
412 if (sb
->s_snapshot_list
)
413 fprintf(f
, "Snapshot list head: %u\n",
414 sb
->s_snapshot_list
);
415 if (sb
->s_error_count
)
416 fprintf(f
, "FS Error count: %u\n",
418 if (sb
->s_first_error_time
) {
419 tm
= sb
->s_first_error_time
;
420 fprintf(f
, "First error time: %s", ctime(&tm
));
421 fprintf(f
, "First error function: %.*s\n",
422 EXT2_LEN_STR(sb
->s_first_error_func
));
423 fprintf(f
, "First error line #: %u\n",
424 sb
->s_first_error_line
);
425 fprintf(f
, "First error inode #: %u\n",
426 sb
->s_first_error_ino
);
427 fprintf(f
, "First error block #: %llu\n",
428 sb
->s_first_error_block
);
430 if (sb
->s_last_error_time
) {
431 tm
= sb
->s_last_error_time
;
432 fprintf(f
, "Last error time: %s", ctime(&tm
));
433 fprintf(f
, "Last error function: %.*s\n",
434 EXT2_LEN_STR(sb
->s_last_error_func
));
435 fprintf(f
, "Last error line #: %u\n",
436 sb
->s_last_error_line
);
437 fprintf(f
, "Last error inode #: %u\n",
438 sb
->s_last_error_ino
);
439 fprintf(f
, "Last error block #: %llu\n",
440 sb
->s_last_error_block
);
442 if (ext2fs_has_feature_mmp(sb
)) {
443 fprintf(f
, "MMP block number: %llu\n",
444 (long long)sb
->s_mmp_block
);
445 fprintf(f
, "MMP update interval: %u\n",
446 sb
->s_mmp_update_interval
);
448 for (qtype
= 0; qtype
< MAXQUOTAS
; qtype
++) {
449 if (*quota_sb_inump(sb
, qtype
) != 0)
450 fprintf(f
, "%-26s%u\n",
451 quota_type2prefix(qtype
),
452 *quota_sb_inump(sb
, qtype
));
455 if (ext2fs_has_feature_metadata_csum(sb
)) {
456 fprintf(f
, "Checksum type: %s\n",
457 checksum_type(sb
->s_checksum_type
));
458 fprintf(f
, "Checksum: 0x%08x\n",
461 if (!e2p_is_null_uuid(sb
->s_encrypt_pw_salt
))
462 fprintf(f
, "Encryption PW Salt: %s\n",
463 e2p_uuid2str(sb
->s_encrypt_pw_salt
));
465 if (ext2fs_has_feature_csum_seed(sb
))
466 fprintf(f
, "Checksum seed: 0x%08x\n",
467 sb
->s_checksum_seed
);
468 if (ext2fs_has_feature_casefold(sb
))
469 fprintf(f
, "Character encoding: %s\n",
470 e2p_encoding2str(sb
->s_encoding
));
473 void list_super (struct ext2_super_block
* s
)
475 list_super2(s
, stdout
);