blob: 9d29db6af32a8ca451a069174d61fc01fcb553fe
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * ls.c - List the contents of an ext2fs superblock |
4 | * |
5 | * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr> |
6 | * Laboratoire MASI, Institut Blaise Pascal |
7 | * Universite Pierre et Marie Curie (Paris VI) |
8 | * |
9 | * Copyright (C) 1995, 1996, 1997 Theodore Ts'o <tytso@mit.edu> |
10 | * |
11 | * This file can be redistributed under the terms of the GNU Library General |
12 | * Public License |
13 | */ |
14 | |
15 | #include <stdio.h> |
16 | #include <stdlib.h> |
17 | #include <sys/types.h> |
18 | #include <string.h> |
19 | #include <grp.h> |
20 | #include <pwd.h> |
21 | #include <time.h> |
22 | |
23 | #include "e2p.h" |
24 | |
25 | static void print_user(unsigned short uid, FILE *f) |
26 | { |
27 | struct passwd *pw = getpwuid(uid); |
28 | fprintf(f, "%u (user %s)\n", uid, |
29 | (pw == NULL ? "unknown" : pw->pw_name)); |
30 | } |
31 | |
32 | static void print_group(unsigned short gid, FILE *f) |
33 | { |
34 | struct group *gr = getgrgid(gid); |
35 | fprintf(f, "%u (group %s)\n", gid, |
36 | (gr == NULL ? "unknown" : gr->gr_name)); |
37 | } |
38 | |
39 | #define MONTH_INT (86400 * 30) |
40 | #define WEEK_INT (86400 * 7) |
41 | #define DAY_INT (86400) |
42 | #define HOUR_INT (60 * 60) |
43 | #define MINUTE_INT (60) |
44 | |
45 | static const char *interval_string(unsigned int secs) |
46 | { |
47 | static char buf[256], tmp[80]; |
48 | int hr, min, num; |
49 | |
50 | buf[0] = 0; |
51 | |
52 | if (secs == 0) |
53 | return "<none>"; |
54 | |
55 | if (secs >= MONTH_INT) { |
56 | num = secs / MONTH_INT; |
57 | secs -= num*MONTH_INT; |
58 | sprintf(buf, "%d month%s", num, (num>1) ? "s" : ""); |
59 | } |
60 | if (secs >= WEEK_INT) { |
61 | num = secs / WEEK_INT; |
62 | secs -= num*WEEK_INT; |
63 | sprintf(tmp, "%s%d week%s", buf[0] ? ", " : "", |
64 | num, (num>1) ? "s" : ""); |
65 | strcat(buf, tmp); |
66 | } |
67 | if (secs >= DAY_INT) { |
68 | num = secs / DAY_INT; |
69 | secs -= num*DAY_INT; |
70 | sprintf(tmp, "%s%d day%s", buf[0] ? ", " : "", |
71 | num, (num>1) ? "s" : ""); |
72 | strcat(buf, tmp); |
73 | } |
74 | if (secs > 0) { |
75 | hr = secs / HOUR_INT; |
76 | secs -= hr*HOUR_INT; |
77 | min = secs / MINUTE_INT; |
78 | secs -= min*MINUTE_INT; |
79 | sprintf(tmp, "%s%d:%02d:%02d", buf[0] ? ", " : "", |
80 | hr, min, secs); |
81 | strcat(buf, tmp); |
82 | } |
83 | return buf; |
84 | } |
85 | |
86 | static void print_features(struct ext2_super_block * s, FILE *f) |
87 | { |
88 | #ifdef EXT2_DYNAMIC_REV |
89 | int i, j, printed=0; |
90 | __u32 *mask = &s->s_feature_compat, m; |
91 | |
92 | fprintf(f, "Filesystem features: "); |
93 | for (i=0; i <3; i++,mask++) { |
94 | for (j=0,m=1; j < 32; j++, m<<=1) { |
95 | if (*mask & m) { |
96 | fprintf(f, " %s", e2p_feature2string(i, m)); |
97 | printed++; |
98 | } |
99 | } |
100 | } |
101 | if (printed == 0) |
102 | fprintf(f, " (none)"); |
103 | fprintf(f, "\n"); |
104 | #endif |
105 | } |
106 | |
107 | static void print_mntopts(struct ext2_super_block * s, FILE *f) |
108 | { |
109 | #ifdef EXT2_DYNAMIC_REV |
110 | int i, printed=0; |
111 | __u32 mask = s->s_default_mount_opts, m; |
112 | |
113 | fprintf(f, "Default mount options: "); |
114 | if (mask & EXT3_DEFM_JMODE) { |
115 | fprintf(f, " %s", e2p_mntopt2string(mask & EXT3_DEFM_JMODE)); |
116 | printed++; |
117 | } |
118 | for (i=0,m=1; i < 32; i++, m<<=1) { |
119 | if (m & EXT3_DEFM_JMODE) |
120 | continue; |
121 | if (mask & m) { |
122 | fprintf(f, " %s", e2p_mntopt2string(m)); |
123 | printed++; |
124 | } |
125 | } |
126 | if (printed == 0) |
127 | fprintf(f, " (none)"); |
128 | fprintf(f, "\n"); |
129 | #endif |
130 | } |
131 | |
132 | |
133 | #ifndef EXT2_INODE_SIZE |
134 | #define EXT2_INODE_SIZE(s) sizeof(struct ext2_inode) |
135 | #endif |
136 | |
137 | #ifndef EXT2_GOOD_OLD_REV |
138 | #define EXT2_GOOD_OLD_REV 0 |
139 | #endif |
140 | |
141 | void list_super2(struct ext2_super_block * sb, FILE *f) |
142 | { |
143 | int inode_blocks_per_group; |
144 | char buf[80], *str; |
145 | time_t tm; |
146 | |
147 | inode_blocks_per_group = (((sb->s_inodes_per_group * |
148 | EXT2_INODE_SIZE(sb)) + |
149 | EXT2_BLOCK_SIZE(sb) - 1) / |
150 | EXT2_BLOCK_SIZE(sb)); |
151 | if (sb->s_volume_name[0]) { |
152 | memset(buf, 0, sizeof(buf)); |
153 | strncpy(buf, sb->s_volume_name, sizeof(sb->s_volume_name)); |
154 | } else |
155 | strcpy(buf, "<none>"); |
156 | fprintf(f, "Filesystem volume name: %s\n", buf); |
157 | if (sb->s_last_mounted[0]) { |
158 | memset(buf, 0, sizeof(buf)); |
159 | strncpy(buf, sb->s_last_mounted, sizeof(sb->s_last_mounted)); |
160 | } else |
161 | strcpy(buf, "<not available>"); |
162 | fprintf(f, |
163 | "Last mounted on: %s\n" |
164 | "Filesystem UUID: %s\n" |
165 | "Filesystem magic number: 0x%04X\n" |
166 | "Filesystem revision #: %d", |
167 | buf, e2p_uuid2str(sb->s_uuid), sb->s_magic, sb->s_rev_level); |
168 | if (sb->s_rev_level == EXT2_GOOD_OLD_REV) { |
169 | fprintf(f, " (original)\n"); |
170 | #ifdef EXT2_DYNAMIC_REV |
171 | } else if (sb->s_rev_level == EXT2_DYNAMIC_REV) { |
172 | fprintf(f, " (dynamic)\n"); |
173 | #endif |
174 | } else |
175 | fprintf(f, " (unknown)\n"); |
176 | print_features(sb, f); |
177 | print_mntopts(sb, f); |
178 | fprintf(f, "Filesystem state: "); |
179 | print_fs_state (f, sb->s_state); |
180 | fprintf(f, "\nErrors behavior: "); |
181 | print_fs_errors(f, sb->s_errors); |
182 | str = e2p_os2string(sb->s_creator_os); |
183 | fprintf(f, |
184 | "\n" |
185 | "Filesystem OS type: %s\n" |
186 | "Inode count: %u\n" |
187 | "Block count: %u\n" |
188 | "Reserved block count: %u\n" |
189 | "Free blocks: %u\n" |
190 | "Free inodes: %u\n" |
191 | "First block: %u\n" |
192 | "Block size: %u\n" |
193 | "Fragment size: %u\n", |
194 | str, sb->s_inodes_count, sb->s_blocks_count, sb->s_r_blocks_count, |
195 | sb->s_free_blocks_count, sb->s_free_inodes_count, |
196 | sb->s_first_data_block, EXT2_BLOCK_SIZE(sb), EXT2_FRAG_SIZE(sb)); |
197 | free(str); |
198 | if (sb->s_reserved_gdt_blocks) |
199 | fprintf(f, "Reserved GDT blocks: %u\n", |
200 | sb->s_reserved_gdt_blocks); |
201 | fprintf(f, |
202 | "Blocks per group: %u\n" |
203 | "Fragments per group: %u\n" |
204 | "Inodes per group: %u\n" |
205 | "Inode blocks per group: %u\n", |
206 | sb->s_blocks_per_group, sb->s_frags_per_group, |
207 | sb->s_inodes_per_group, inode_blocks_per_group); |
208 | if (sb->s_first_meta_bg) |
209 | fprintf(f, "First meta block group: %u\n", |
210 | sb->s_first_meta_bg); |
211 | if (sb->s_mkfs_time) { |
212 | tm = sb->s_mkfs_time; |
213 | fprintf(f, "Filesystem created: %s", ctime(&tm)); |
214 | } |
215 | tm = sb->s_mtime; |
216 | fprintf(f, "Last mount time: %s", |
217 | sb->s_mtime ? ctime(&tm) : "n/a\n"); |
218 | tm = sb->s_wtime; |
219 | fprintf(f, |
220 | "Last write time: %s" |
221 | "Mount count: %u\n" |
222 | "Maximum mount count: %d\n", |
223 | ctime(&tm), sb->s_mnt_count, sb->s_max_mnt_count); |
224 | tm = sb->s_lastcheck; |
225 | fprintf(f, |
226 | "Last checked: %s" |
227 | "Check interval: %u (%s)\n", |
228 | ctime(&tm), |
229 | sb->s_checkinterval, interval_string(sb->s_checkinterval)); |
230 | if (sb->s_checkinterval) |
231 | { |
232 | time_t next; |
233 | |
234 | next = sb->s_lastcheck + sb->s_checkinterval; |
235 | fprintf(f, "Next check after: %s", ctime(&next)); |
236 | } |
237 | fprintf(f, "Reserved blocks uid: "); |
238 | print_user(sb->s_def_resuid, f); |
239 | fprintf(f, "Reserved blocks gid: "); |
240 | print_group(sb->s_def_resgid, f); |
241 | if (sb->s_rev_level >= EXT2_DYNAMIC_REV) { |
242 | fprintf(f, |
243 | "First inode: %d\n" |
244 | "Inode size: %d\n", |
245 | sb->s_first_ino, sb->s_inode_size); |
246 | } |
247 | if (!e2p_is_null_uuid(sb->s_journal_uuid)) |
248 | fprintf(f, "Journal UUID: %s\n", |
249 | e2p_uuid2str(sb->s_journal_uuid)); |
250 | if (sb->s_journal_inum) |
251 | fprintf(f, "Journal inode: %u\n", |
252 | sb->s_journal_inum); |
253 | if (sb->s_journal_dev) |
254 | fprintf(f, "Journal device: 0x%04x\n", |
255 | sb->s_journal_dev); |
256 | if (sb->s_last_orphan) |
257 | fprintf(f, "First orphan inode: %u\n", |
258 | sb->s_last_orphan); |
259 | if ((sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) || |
260 | sb->s_def_hash_version) |
261 | fprintf(f, "Default directory hash: %s\n", |
262 | e2p_hash2string(sb->s_def_hash_version)); |
263 | if (!e2p_is_null_uuid(sb->s_hash_seed)) |
264 | fprintf(f, "Directory Hash Seed: %s\n", |
265 | e2p_uuid2str(sb->s_hash_seed)); |
266 | if (sb->s_jnl_backup_type) { |
267 | fprintf(f, "Journal backup: "); |
268 | if (sb->s_jnl_backup_type == 1) |
269 | fprintf(f, "inode blocks\n"); |
270 | else |
271 | fprintf(f, "type %u\n", sb->s_jnl_backup_type); |
272 | } |
273 | } |
274 |