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>
27 static void print_user (unsigned short uid
, FILE *f
)
31 fprintf(f
, "%u ", uid
);
34 fprintf(f
, "(user unknown)\n");
36 fprintf(f
, "(user %s)\n", pw
->pw_name
);
39 static void print_group (unsigned short gid
, FILE *f
)
43 fprintf(f
, "%u ", gid
);
46 fprintf(f
, "(group unknown)\n");
48 fprintf(f
, "(group %s)\n", gr
->gr_name
);
51 #define MONTH_INT (86400 * 30)
52 #define WEEK_INT (86400 * 7)
53 #define DAY_INT (86400)
54 #define HOUR_INT (60 * 60)
55 #define MINUTE_INT (60)
57 static const char *interval_string(unsigned int secs
)
59 static char buf
[256], tmp
[80];
67 if (secs
>= MONTH_INT
) {
68 num
= secs
/ MONTH_INT
;
69 secs
-= num
*MONTH_INT
;
70 sprintf(buf
, "%d month%s", num
, (num
>1) ? "s" : "");
72 if (secs
>= WEEK_INT
) {
73 num
= secs
/ WEEK_INT
;
75 sprintf(tmp
, "%s%d week%s", buf
[0] ? ", " : "",
76 num
, (num
>1) ? "s" : "");
79 if (secs
>= DAY_INT
) {
82 sprintf(tmp
, "%s%d day%s", buf
[0] ? ", " : "",
83 num
, (num
>1) ? "s" : "");
89 min
= secs
/ MINUTE_INT
;
90 secs
-= min
*MINUTE_INT
;
91 sprintf(tmp
, "%s%d:%02d:%02d", buf
[0] ? ", " : "",
98 static void print_features(struct ext2_super_block
* s
, FILE *f
)
100 #ifdef EXT2_DYNAMIC_REV
102 __u32
*mask
= &s
->s_feature_compat
, m
;
104 fprintf(f
, "Filesystem features: ");
105 for (i
=0; i
<3; i
++,mask
++) {
106 for (j
=0,m
=1; j
< 32; j
++, m
<<=1) {
108 fprintf(f
, " %s", e2p_feature2string(i
, m
));
114 fprintf(f
, " (none)");
119 static void print_mntopts(struct ext2_super_block
* s
, FILE *f
)
121 #ifdef EXT2_DYNAMIC_REV
123 __u32 mask
= s
->s_default_mount_opts
, m
;
125 fprintf(f
, "Default mount options: ");
126 if (mask
& EXT3_DEFM_JMODE
) {
127 fprintf(f
, " %s", e2p_mntopt2string(mask
& EXT3_DEFM_JMODE
));
130 for (i
=0,m
=1; i
< 32; i
++, m
<<=1) {
131 if (m
& EXT3_DEFM_JMODE
)
134 fprintf(f
, " %s", e2p_mntopt2string(m
));
139 fprintf(f
, " (none)");
144 static void print_super_flags(struct ext2_super_block
* s
, FILE *f
)
151 fputs("Filesystem flags: ", f
);
152 if (s
->s_flags
& EXT2_FLAGS_SIGNED_HASH
) {
153 fputs("signed_directory_hash ", f
);
156 if (s
->s_flags
& EXT2_FLAGS_UNSIGNED_HASH
) {
157 fputs("unsigned_directory_hash ", f
);
160 if (s
->s_flags
& EXT2_FLAGS_TEST_FILESYS
) {
161 fputs("test_filesystem ", f
);
167 fputs("(none)\n", f
);
170 static __u64
e2p_blocks_count(struct ext2_super_block
*super
)
172 return super
->s_blocks_count
|
173 (super
->s_feature_incompat
& EXT4_FEATURE_INCOMPAT_64BIT
?
174 (__u64
) super
->s_blocks_count_hi
<< 32 : 0);
177 static __u64
e2p_r_blocks_count(struct ext2_super_block
*super
)
179 return super
->s_r_blocks_count
|
180 (super
->s_feature_incompat
& EXT4_FEATURE_INCOMPAT_64BIT
?
181 (__u64
) super
->s_r_blocks_count_hi
<< 32 : 0);
184 static __u64
e2p_free_blocks_count(struct ext2_super_block
*super
)
186 return super
->s_free_blocks_count
|
187 (super
->s_feature_incompat
& EXT4_FEATURE_INCOMPAT_64BIT
?
188 (__u64
) super
->s_free_blocks_hi
<< 32 : 0);
191 #ifndef EXT2_INODE_SIZE
192 #define EXT2_INODE_SIZE(s) sizeof(struct ext2_inode)
195 #ifndef EXT2_GOOD_OLD_REV
196 #define EXT2_GOOD_OLD_REV 0
199 static const char *checksum_type(__u8 type
)
202 case EXT2_CRC32C_CHKSUM
:
209 void list_super2(struct ext2_super_block
* sb
, FILE *f
)
211 int inode_blocks_per_group
;
215 inode_blocks_per_group
= (((sb
->s_inodes_per_group
*
216 EXT2_INODE_SIZE(sb
)) +
217 EXT2_BLOCK_SIZE(sb
) - 1) /
218 EXT2_BLOCK_SIZE(sb
));
219 if (sb
->s_volume_name
[0]) {
220 memset(buf
, 0, sizeof(buf
));
221 strncpy(buf
, sb
->s_volume_name
, sizeof(sb
->s_volume_name
));
223 strcpy(buf
, "<none>");
224 fprintf(f
, "Filesystem volume name: %s\n", buf
);
225 if (sb
->s_last_mounted
[0]) {
226 memset(buf
, 0, sizeof(buf
));
227 strncpy(buf
, sb
->s_last_mounted
, sizeof(sb
->s_last_mounted
));
229 strcpy(buf
, "<not available>");
230 fprintf(f
, "Last mounted on: %s\n", buf
);
231 fprintf(f
, "Filesystem UUID: %s\n", e2p_uuid2str(sb
->s_uuid
));
232 fprintf(f
, "Filesystem magic number: 0x%04X\n", sb
->s_magic
);
233 fprintf(f
, "Filesystem revision #: %d", sb
->s_rev_level
);
234 if (sb
->s_rev_level
== EXT2_GOOD_OLD_REV
) {
235 fprintf(f
, " (original)\n");
236 #ifdef EXT2_DYNAMIC_REV
237 } else if (sb
->s_rev_level
== EXT2_DYNAMIC_REV
) {
238 fprintf(f
, " (dynamic)\n");
241 fprintf(f
, " (unknown)\n");
242 print_features(sb
, f
);
243 print_super_flags(sb
, f
);
244 print_mntopts(sb
, f
);
245 if (sb
->s_mount_opts
[0])
246 fprintf(f
, "Mount options: %s\n", sb
->s_mount_opts
);
247 fprintf(f
, "Filesystem state: ");
248 print_fs_state (f
, sb
->s_state
);
250 fprintf(f
, "Errors behavior: ");
251 print_fs_errors(f
, sb
->s_errors
);
253 str
= e2p_os2string(sb
->s_creator_os
);
254 fprintf(f
, "Filesystem OS type: %s\n", str
);
256 fprintf(f
, "Inode count: %u\n", sb
->s_inodes_count
);
257 fprintf(f
, "Block count: %llu\n", e2p_blocks_count(sb
));
258 fprintf(f
, "Reserved block count: %llu\n", e2p_r_blocks_count(sb
));
259 if (sb
->s_overhead_blocks
)
260 fprintf(f
, "Overhead blocks: %u\n",
261 sb
->s_overhead_blocks
);
262 fprintf(f
, "Free blocks: %llu\n", e2p_free_blocks_count(sb
));
263 fprintf(f
, "Free inodes: %u\n", sb
->s_free_inodes_count
);
264 fprintf(f
, "First block: %u\n", sb
->s_first_data_block
);
265 fprintf(f
, "Block size: %u\n", EXT2_BLOCK_SIZE(sb
));
266 if (sb
->s_feature_ro_compat
& EXT4_FEATURE_RO_COMPAT_BIGALLOC
)
267 fprintf(f
, "Cluster size: %u\n",
268 EXT2_CLUSTER_SIZE(sb
));
270 fprintf(f
, "Fragment size: %u\n",
271 EXT2_CLUSTER_SIZE(sb
));
272 if (sb
->s_reserved_gdt_blocks
)
273 fprintf(f
, "Reserved GDT blocks: %u\n",
274 sb
->s_reserved_gdt_blocks
);
275 fprintf(f
, "Blocks per group: %u\n", sb
->s_blocks_per_group
);
276 if (sb
->s_feature_ro_compat
& EXT4_FEATURE_RO_COMPAT_BIGALLOC
)
277 fprintf(f
, "Clusters per group: %u\n",
278 sb
->s_clusters_per_group
);
280 fprintf(f
, "Fragments per group: %u\n",
281 sb
->s_clusters_per_group
);
282 fprintf(f
, "Inodes per group: %u\n", sb
->s_inodes_per_group
);
283 fprintf(f
, "Inode blocks per group: %u\n", inode_blocks_per_group
);
284 if (sb
->s_raid_stride
)
285 fprintf(f
, "RAID stride: %u\n",
287 if (sb
->s_raid_stripe_width
)
288 fprintf(f
, "RAID stripe width: %u\n",
289 sb
->s_raid_stripe_width
);
290 if (sb
->s_first_meta_bg
)
291 fprintf(f
, "First meta block group: %u\n",
292 sb
->s_first_meta_bg
);
293 if (sb
->s_log_groups_per_flex
)
294 fprintf(f
, "Flex block group size: %u\n",
295 1 << sb
->s_log_groups_per_flex
);
296 if (sb
->s_mkfs_time
) {
297 tm
= sb
->s_mkfs_time
;
298 fprintf(f
, "Filesystem created: %s", ctime(&tm
));
301 fprintf(f
, "Last mount time: %s",
302 sb
->s_mtime
? ctime(&tm
) : "n/a\n");
304 fprintf(f
, "Last write time: %s", ctime(&tm
));
305 fprintf(f
, "Mount count: %u\n", sb
->s_mnt_count
);
306 fprintf(f
, "Maximum mount count: %d\n", sb
->s_max_mnt_count
);
307 tm
= sb
->s_lastcheck
;
308 fprintf(f
, "Last checked: %s", ctime(&tm
));
309 fprintf(f
, "Check interval: %u (%s)\n", sb
->s_checkinterval
,
310 interval_string(sb
->s_checkinterval
));
311 if (sb
->s_checkinterval
)
315 next
= sb
->s_lastcheck
+ sb
->s_checkinterval
;
316 fprintf(f
, "Next check after: %s", ctime(&next
));
318 #define POW2(x) ((__u64) 1 << (x))
319 if (sb
->s_kbytes_written
) {
320 fprintf(f
, "Lifetime writes: ");
321 if (sb
->s_kbytes_written
< POW2(13))
322 fprintf(f
, "%llu kB\n", sb
->s_kbytes_written
);
323 else if (sb
->s_kbytes_written
< POW2(23))
324 fprintf(f
, "%llu MB\n",
325 (sb
->s_kbytes_written
+ POW2(9)) >> 10);
326 else if (sb
->s_kbytes_written
< POW2(33))
327 fprintf(f
, "%llu GB\n",
328 (sb
->s_kbytes_written
+ POW2(19)) >> 20);
329 else if (sb
->s_kbytes_written
< POW2(43))
330 fprintf(f
, "%llu TB\n",
331 (sb
->s_kbytes_written
+ POW2(29)) >> 30);
333 fprintf(f
, "%llu PB\n",
334 (sb
->s_kbytes_written
+ POW2(39)) >> 40);
336 fprintf(f
, "Reserved blocks uid: ");
337 print_user(sb
->s_def_resuid
, f
);
338 fprintf(f
, "Reserved blocks gid: ");
339 print_group(sb
->s_def_resgid
, f
);
340 if (sb
->s_rev_level
>= EXT2_DYNAMIC_REV
) {
341 fprintf(f
, "First inode: %d\n", sb
->s_first_ino
);
342 fprintf(f
, "Inode size: %d\n", sb
->s_inode_size
);
343 if (sb
->s_min_extra_isize
)
344 fprintf(f
, "Required extra isize: %d\n",
345 sb
->s_min_extra_isize
);
346 if (sb
->s_want_extra_isize
)
347 fprintf(f
, "Desired extra isize: %d\n",
348 sb
->s_want_extra_isize
);
350 if (!e2p_is_null_uuid(sb
->s_journal_uuid
))
351 fprintf(f
, "Journal UUID: %s\n",
352 e2p_uuid2str(sb
->s_journal_uuid
));
353 if (sb
->s_journal_inum
)
354 fprintf(f
, "Journal inode: %u\n",
356 if (sb
->s_journal_dev
)
357 fprintf(f
, "Journal device: 0x%04x\n",
359 if (sb
->s_last_orphan
)
360 fprintf(f
, "First orphan inode: %u\n",
362 if ((sb
->s_feature_compat
& EXT2_FEATURE_COMPAT_DIR_INDEX
) ||
363 sb
->s_def_hash_version
)
364 fprintf(f
, "Default directory hash: %s\n",
365 e2p_hash2string(sb
->s_def_hash_version
));
366 if (!e2p_is_null_uuid(sb
->s_hash_seed
))
367 fprintf(f
, "Directory Hash Seed: %s\n",
368 e2p_uuid2str(sb
->s_hash_seed
));
369 if (sb
->s_jnl_backup_type
) {
370 fprintf(f
, "Journal backup: ");
371 switch (sb
->s_jnl_backup_type
) {
373 fprintf(f
, "inode blocks\n");
376 fprintf(f
, "type %u\n", sb
->s_jnl_backup_type
);
379 if (sb
->s_snapshot_inum
) {
380 fprintf(f
, "Snapshot inode: %u\n",
381 sb
->s_snapshot_inum
);
382 fprintf(f
, "Snapshot ID: %u\n",
384 fprintf(f
, "Snapshot reserved blocks: %llu\n",
385 sb
->s_snapshot_r_blocks_count
);
387 if (sb
->s_snapshot_list
)
388 fprintf(f
, "Snapshot list head: %u\n",
389 sb
->s_snapshot_list
);
390 if (sb
->s_error_count
)
391 fprintf(f
, "FS Error count: %u\n",
393 if (sb
->s_first_error_time
) {
394 tm
= sb
->s_first_error_time
;
395 fprintf(f
, "First error time: %s", ctime(&tm
));
396 memset(buf
, 0, sizeof(buf
));
397 strncpy(buf
, (char *)sb
->s_first_error_func
,
398 sizeof(sb
->s_first_error_func
));
399 fprintf(f
, "First error function: %s\n", buf
);
400 fprintf(f
, "First error line #: %u\n",
401 sb
->s_first_error_line
);
402 fprintf(f
, "First error inode #: %u\n",
403 sb
->s_first_error_ino
);
404 fprintf(f
, "First error block #: %llu\n",
405 sb
->s_first_error_block
);
407 if (sb
->s_last_error_time
) {
408 tm
= sb
->s_last_error_time
;
409 fprintf(f
, "Last error time: %s", ctime(&tm
));
410 memset(buf
, 0, sizeof(buf
));
411 strncpy(buf
, (char *)sb
->s_last_error_func
,
412 sizeof(sb
->s_last_error_func
));
413 fprintf(f
, "Last error function: %s\n", buf
);
414 fprintf(f
, "Last error line #: %u\n",
415 sb
->s_last_error_line
);
416 fprintf(f
, "Last error inode #: %u\n",
417 sb
->s_last_error_ino
);
418 fprintf(f
, "Last error block #: %llu\n",
419 sb
->s_last_error_block
);
421 if (sb
->s_feature_incompat
& EXT4_FEATURE_INCOMPAT_MMP
) {
422 fprintf(f
, "MMP block number: %llu\n",
423 (long long)sb
->s_mmp_block
);
424 fprintf(f
, "MMP update interval: %u\n",
425 sb
->s_mmp_update_interval
);
427 if (sb
->s_usr_quota_inum
)
428 fprintf(f
, "User quota inode: %u\n",
429 sb
->s_usr_quota_inum
);
430 if (sb
->s_grp_quota_inum
)
431 fprintf(f
, "Group quota inode: %u\n",
432 sb
->s_grp_quota_inum
);
434 if (sb
->s_feature_ro_compat
& EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
) {
435 fprintf(f
, "Checksum type: %s\n",
436 checksum_type(sb
->s_checksum_type
));
437 fprintf(f
, "Checksum: 0x%08x\n",
442 void list_super (struct ext2_super_block
* s
)
444 list_super2(s
, stdout
);