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.
18 #include <sys/types.h>
26 static void print_user (unsigned short uid, FILE *f)
30 fprintf(f, "%u ", uid);
33 fprintf(f, "(user unknown)\n");
35 fprintf(f, "(user %s)\n", pw->pw_name);
38 static void print_group (unsigned short gid, FILE *f)
42 fprintf(f, "%u ", gid);
45 fprintf(f, "(group unknown)\n");
47 fprintf(f, "(group %s)\n", gr->gr_name);
50 #define MONTH_INT (86400 * 30)
51 #define WEEK_INT (86400 * 7)
52 #define DAY_INT (86400)
53 #define HOUR_INT (60 * 60)
54 #define MINUTE_INT (60)
56 static const char *interval_string(unsigned int secs)
58 static char buf[256], tmp[80];
66 if (secs >= MONTH_INT) {
67 num = secs / MONTH_INT;
68 secs -= num*MONTH_INT;
69 sprintf(buf, "%d month%s", num, (num>1) ? "s" : "");
71 if (secs >= WEEK_INT) {
72 num = secs / WEEK_INT;
74 sprintf(tmp, "%s%d week%s", buf[0] ? ", " : "",
75 num, (num>1) ? "s" : "");
78 if (secs >= DAY_INT) {
81 sprintf(tmp, "%s%d day%s", buf[0] ? ", " : "",
82 num, (num>1) ? "s" : "");
88 min = secs / MINUTE_INT;
89 secs -= min*MINUTE_INT;
90 sprintf(tmp, "%s%d:%02d:%02d", buf[0] ? ", " : "",
97 static void print_features(struct ext2_super_block * s, FILE *f)
99 #ifdef EXT2_DYNAMIC_REV
101 __u32 *mask = &s->s_feature_compat, m;
103 fprintf(f, "Filesystem features: ");
104 for (i=0; i <3; i++,mask++) {
105 for (j=0,m=1; j < 32; j++, m<<=1) {
107 fprintf(f, " %s", e2p_feature2string(i, m));
113 fprintf(f, " (none)");
118 static void print_mntopts(struct ext2_super_block * s, FILE *f)
120 #ifdef EXT2_DYNAMIC_REV
122 __u32 mask = s->s_default_mount_opts, m;
124 fprintf(f, "Default mount options: ");
125 if (mask & EXT3_DEFM_JMODE) {
126 fprintf(f, " %s", e2p_mntopt2string(mask & EXT3_DEFM_JMODE));
129 for (i=0,m=1; i < 32; i++, m<<=1) {
130 if (m & EXT3_DEFM_JMODE)
133 fprintf(f, " %s", e2p_mntopt2string(m));
138 fprintf(f, " (none)");
143 static void print_super_flags(struct ext2_super_block * s, FILE *f)
150 fputs("Filesystem flags: ", f);
151 if (s->s_flags & EXT2_FLAGS_SIGNED_HASH) {
152 fputs("signed_directory_hash ", f);
155 if (s->s_flags & EXT2_FLAGS_UNSIGNED_HASH) {
156 fputs("unsigned_directory_hash ", f);
159 if (s->s_flags & EXT2_FLAGS_TEST_FILESYS) {
160 fputs("test_filesystem ", f);
166 fputs("(none)\n", f);
170 #ifndef EXT2_INODE_SIZE
171 #define EXT2_INODE_SIZE(s) sizeof(struct ext2_inode)
174 #ifndef EXT2_GOOD_OLD_REV
175 #define EXT2_GOOD_OLD_REV 0
178 void list_super2(struct ext2_super_block * sb, FILE *f)
180 int inode_blocks_per_group;
184 inode_blocks_per_group = (((sb->s_inodes_per_group *
185 EXT2_INODE_SIZE(sb)) +
186 EXT2_BLOCK_SIZE(sb) - 1) /
187 EXT2_BLOCK_SIZE(sb));
188 if (sb->s_volume_name[0]) {
189 memset(buf, 0, sizeof(buf));
190 strncpy(buf, sb->s_volume_name, sizeof(sb->s_volume_name));
192 strcpy(buf, "<none>");
193 fprintf(f, "Filesystem volume name: %s\n", buf);
194 if (sb->s_last_mounted[0]) {
195 memset(buf, 0, sizeof(buf));
196 strncpy(buf, sb->s_last_mounted, sizeof(sb->s_last_mounted));
198 strcpy(buf, "<not available>");
199 fprintf(f, "Last mounted on: %s\n", buf);
200 fprintf(f, "Filesystem UUID: %s\n", e2p_uuid2str(sb->s_uuid));
201 fprintf(f, "Filesystem magic number: 0x%04X\n", sb->s_magic);
202 fprintf(f, "Filesystem revision #: %d", sb->s_rev_level);
203 if (sb->s_rev_level == EXT2_GOOD_OLD_REV) {
204 fprintf(f, " (original)\n");
205 #ifdef EXT2_DYNAMIC_REV
206 } else if (sb->s_rev_level == EXT2_DYNAMIC_REV) {
207 fprintf(f, " (dynamic)\n");
210 fprintf(f, " (unknown)\n");
211 print_features(sb, f);
212 print_super_flags(sb, f);
213 print_mntopts(sb, f);
214 fprintf(f, "Filesystem state: ");
215 print_fs_state (f, sb->s_state);
217 fprintf(f, "Errors behavior: ");
218 print_fs_errors(f, sb->s_errors);
220 str = e2p_os2string(sb->s_creator_os);
221 fprintf(f, "Filesystem OS type: %s\n", str);
223 fprintf(f, "Inode count: %u\n", sb->s_inodes_count);
224 fprintf(f, "Block count: %u\n", sb->s_blocks_count);
225 fprintf(f, "Reserved block count: %u\n", sb->s_r_blocks_count);
226 fprintf(f, "Free blocks: %u\n", sb->s_free_blocks_count);
227 fprintf(f, "Free inodes: %u\n", sb->s_free_inodes_count);
228 fprintf(f, "First block: %u\n", sb->s_first_data_block);
229 fprintf(f, "Block size: %u\n", EXT2_BLOCK_SIZE(sb));
230 fprintf(f, "Fragment size: %u\n", EXT2_FRAG_SIZE(sb));
231 if (sb->s_reserved_gdt_blocks)
232 fprintf(f, "Reserved GDT blocks: %u\n",
233 sb->s_reserved_gdt_blocks);
234 fprintf(f, "Blocks per group: %u\n", sb->s_blocks_per_group);
235 fprintf(f, "Fragments per group: %u\n", sb->s_frags_per_group);
236 fprintf(f, "Inodes per group: %u\n", sb->s_inodes_per_group);
237 fprintf(f, "Inode blocks per group: %u\n", inode_blocks_per_group);
238 if (sb->s_raid_stride)
239 fprintf(f, "RAID stride: %u\n",
241 if (sb->s_raid_stripe_width)
242 fprintf(f, "RAID stripe width: %u\n",
243 sb->s_raid_stripe_width);
244 if (sb->s_first_meta_bg)
245 fprintf(f, "First meta block group: %u\n",
246 sb->s_first_meta_bg);
247 if (sb->s_log_groups_per_flex)
248 fprintf(f, "Flex block group size: %u\n",
249 1 << sb->s_log_groups_per_flex);
250 if (sb->s_mkfs_time) {
251 tm = sb->s_mkfs_time;
252 fprintf(f, "Filesystem created: %s", ctime(&tm));
255 fprintf(f, "Last mount time: %s",
256 sb->s_mtime ? ctime(&tm) : "n/a\n");
258 fprintf(f, "Last write time: %s", ctime(&tm));
259 fprintf(f, "Mount count: %u\n", sb->s_mnt_count);
260 fprintf(f, "Maximum mount count: %d\n", sb->s_max_mnt_count);
261 tm = sb->s_lastcheck;
262 fprintf(f, "Last checked: %s", ctime(&tm));
263 fprintf(f, "Check interval: %u (%s)\n", sb->s_checkinterval,
264 interval_string(sb->s_checkinterval));
265 if (sb->s_checkinterval)
269 next = sb->s_lastcheck + sb->s_checkinterval;
270 fprintf(f, "Next check after: %s", ctime(&next));
272 #define POW2(x) ((__u64) 1 << (x))
273 if (sb->s_kbytes_written) {
274 fprintf(f, "Lifetime writes: ");
275 if (sb->s_kbytes_written < POW2(13))
276 fprintf(f, "%llu kB\n", sb->s_kbytes_written);
277 else if (sb->s_kbytes_written < POW2(23))
278 fprintf(f, "%llu MB\n",
279 (sb->s_kbytes_written + POW2(9)) >> 10);
280 else if (sb->s_kbytes_written < POW2(33))
281 fprintf(f, "%llu GB\n",
282 (sb->s_kbytes_written + POW2(19)) >> 20);
283 else if (sb->s_kbytes_written < POW2(43))
284 fprintf(f, "%llu TB\n",
285 (sb->s_kbytes_written + POW2(29)) >> 30);
287 fprintf(f, "%llu PB\n",
288 (sb->s_kbytes_written + POW2(39)) >> 40);
290 fprintf(f, "Reserved blocks uid: ");
291 print_user(sb->s_def_resuid, f);
292 fprintf(f, "Reserved blocks gid: ");
293 print_group(sb->s_def_resgid, f);
294 if (sb->s_rev_level >= EXT2_DYNAMIC_REV) {
295 fprintf(f, "First inode: %d\n", sb->s_first_ino);
296 fprintf(f, "Inode size: %d\n", sb->s_inode_size);
297 if (sb->s_min_extra_isize)
298 fprintf(f, "Required extra isize: %d\n",
299 sb->s_min_extra_isize);
300 if (sb->s_want_extra_isize)
301 fprintf(f, "Desired extra isize: %d\n",
302 sb->s_want_extra_isize);
304 if (!e2p_is_null_uuid(sb->s_journal_uuid))
305 fprintf(f, "Journal UUID: %s\n",
306 e2p_uuid2str(sb->s_journal_uuid));
307 if (sb->s_journal_inum)
308 fprintf(f, "Journal inode: %u\n",
310 if (sb->s_journal_dev)
311 fprintf(f, "Journal device: 0x%04x\n",
313 if (sb->s_last_orphan)
314 fprintf(f, "First orphan inode: %u\n",
316 if ((sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) ||
317 sb->s_def_hash_version)
318 fprintf(f, "Default directory hash: %s\n",
319 e2p_hash2string(sb->s_def_hash_version));
320 if (!e2p_is_null_uuid(sb->s_hash_seed))
321 fprintf(f, "Directory Hash Seed: %s\n",
322 e2p_uuid2str(sb->s_hash_seed));
323 if (sb->s_jnl_backup_type) {
324 fprintf(f, "Journal backup: ");
325 switch (sb->s_jnl_backup_type) {
327 fprintf(f, "inode blocks\n");
330 fprintf(f, "type %u\n", sb->s_jnl_backup_type);
333 if (sb->s_snapshot_inum) {
334 fprintf(f, "Snapshot inode: %u\n",
335 sb->s_snapshot_inum);
336 fprintf(f, "Snapshot ID: %u\n",
338 fprintf(f, "Snapshot reserved blocks: %llu\n",
339 sb->s_snapshot_r_blocks_count);
341 if (sb->s_snapshot_list)
342 fprintf(f, "Snapshot list head: %u\n",
343 sb->s_snapshot_list);
344 if (sb->s_error_count)
345 fprintf(f, "FS Error count: %u\n",
347 if (sb->s_first_error_time) {
348 tm = sb->s_first_error_time;
349 fprintf(f, "First error time: %s", ctime(&tm));
350 memset(buf, 0, sizeof(buf));
351 strncpy(buf, sb->s_first_error_func,
352 sizeof(sb->s_first_error_func));
353 fprintf(f, "First error function: %s\n", buf);
354 fprintf(f, "First error line #: %u\n",
355 sb->s_first_error_line);
356 fprintf(f, "First error inode #: %u\n",
357 sb->s_first_error_ino);
358 fprintf(f, "First error block #: %llu\n",
359 sb->s_first_error_block);
361 if (sb->s_last_error_time) {
362 tm = sb->s_last_error_time;
363 fprintf(f, "Last error time: %s", ctime(&tm));
364 memset(buf, 0, sizeof(buf));
365 strncpy(buf, sb->s_last_error_func,
366 sizeof(sb->s_last_error_func));
367 fprintf(f, "Last error function: %s\n", buf);
368 fprintf(f, "Last error line #: %u\n",
369 sb->s_last_error_line);
370 fprintf(f, "Last error inode #: %u\n",
371 sb->s_last_error_ino);
372 fprintf(f, "Last error block #: %llu\n",
373 sb->s_last_error_block);
377 void list_super (struct ext2_super_block * s)
379 list_super2(s, stdout);