[821] | 1 | /*
|
---|
| 2 | * ls.c - List the contents of an ext2fs superblock
|
---|
| 3 | *
|
---|
| 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)
|
---|
| 7 | *
|
---|
| 8 | * Copyright (C) 1995, 1996, 1997 Theodore Ts'o <tytso@mit.edu>
|
---|
| 9 | *
|
---|
| 10 | * This file can be redistributed under the terms of the GNU Library General
|
---|
| 11 | * Public License
|
---|
| 12 | */
|
---|
| 13 |
|
---|
| 14 | #include <stdio.h>
|
---|
| 15 | #include <stdlib.h>
|
---|
| 16 | #include <sys/types.h>
|
---|
| 17 | #include <string.h>
|
---|
| 18 | #include <grp.h>
|
---|
| 19 | #include <pwd.h>
|
---|
| 20 | #include <time.h>
|
---|
| 21 |
|
---|
| 22 | #include "e2p.h"
|
---|
| 23 |
|
---|
| 24 | static void print_user(unsigned short uid, FILE *f)
|
---|
| 25 | {
|
---|
| 26 | struct passwd *pw = getpwuid(uid);
|
---|
| 27 | fprintf(f, "%u (user %s)\n", uid,
|
---|
| 28 | (pw == NULL ? "unknown" : pw->pw_name));
|
---|
| 29 | }
|
---|
| 30 |
|
---|
| 31 | static void print_group(unsigned short gid, FILE *f)
|
---|
| 32 | {
|
---|
| 33 | struct group *gr = getgrgid(gid);
|
---|
| 34 | fprintf(f, "%u (group %s)\n", gid,
|
---|
| 35 | (gr == NULL ? "unknown" : gr->gr_name));
|
---|
| 36 | }
|
---|
| 37 |
|
---|
| 38 | #define MONTH_INT (86400 * 30)
|
---|
| 39 | #define WEEK_INT (86400 * 7)
|
---|
| 40 | #define DAY_INT (86400)
|
---|
| 41 | #define HOUR_INT (60 * 60)
|
---|
| 42 | #define MINUTE_INT (60)
|
---|
| 43 |
|
---|
| 44 | static const char *interval_string(unsigned int secs)
|
---|
| 45 | {
|
---|
| 46 | static char buf[256], tmp[80];
|
---|
| 47 | int hr, min, num;
|
---|
| 48 |
|
---|
| 49 | buf[0] = 0;
|
---|
| 50 |
|
---|
| 51 | if (secs == 0)
|
---|
| 52 | return "<none>";
|
---|
| 53 |
|
---|
| 54 | if (secs >= MONTH_INT) {
|
---|
| 55 | num = secs / MONTH_INT;
|
---|
| 56 | secs -= num*MONTH_INT;
|
---|
| 57 | sprintf(buf, "%d month%s", num, (num>1) ? "s" : "");
|
---|
| 58 | }
|
---|
| 59 | if (secs >= WEEK_INT) {
|
---|
| 60 | num = secs / WEEK_INT;
|
---|
| 61 | secs -= num*WEEK_INT;
|
---|
| 62 | sprintf(tmp, "%s%d week%s", buf[0] ? ", " : "",
|
---|
| 63 | num, (num>1) ? "s" : "");
|
---|
| 64 | strcat(buf, tmp);
|
---|
| 65 | }
|
---|
| 66 | if (secs >= DAY_INT) {
|
---|
| 67 | num = secs / DAY_INT;
|
---|
| 68 | secs -= num*DAY_INT;
|
---|
| 69 | sprintf(tmp, "%s%d day%s", buf[0] ? ", " : "",
|
---|
| 70 | num, (num>1) ? "s" : "");
|
---|
| 71 | strcat(buf, tmp);
|
---|
| 72 | }
|
---|
| 73 | if (secs > 0) {
|
---|
| 74 | hr = secs / HOUR_INT;
|
---|
| 75 | secs -= hr*HOUR_INT;
|
---|
| 76 | min = secs / MINUTE_INT;
|
---|
| 77 | secs -= min*MINUTE_INT;
|
---|
| 78 | sprintf(tmp, "%s%d:%02d:%02d", buf[0] ? ", " : "",
|
---|
| 79 | hr, min, secs);
|
---|
| 80 | strcat(buf, tmp);
|
---|
| 81 | }
|
---|
| 82 | return buf;
|
---|
| 83 | }
|
---|
| 84 |
|
---|
| 85 | static void print_features(struct ext2_super_block * s, FILE *f)
|
---|
| 86 | {
|
---|
| 87 | #ifdef EXT2_DYNAMIC_REV
|
---|
| 88 | int i, j, printed=0;
|
---|
| 89 | __u32 *mask = &s->s_feature_compat, m;
|
---|
| 90 |
|
---|
| 91 | fprintf(f, "Filesystem features: ");
|
---|
| 92 | for (i=0; i <3; i++,mask++) {
|
---|
| 93 | for (j=0,m=1; j < 32; j++, m<<=1) {
|
---|
| 94 | if (*mask & m) {
|
---|
| 95 | fprintf(f, " %s", e2p_feature2string(i, m));
|
---|
| 96 | printed++;
|
---|
| 97 | }
|
---|
| 98 | }
|
---|
| 99 | }
|
---|
| 100 | if (printed == 0)
|
---|
| 101 | fprintf(f, " (none)");
|
---|
| 102 | fprintf(f, "\n");
|
---|
| 103 | #endif
|
---|
| 104 | }
|
---|
| 105 |
|
---|
| 106 | static void print_mntopts(struct ext2_super_block * s, FILE *f)
|
---|
| 107 | {
|
---|
| 108 | #ifdef EXT2_DYNAMIC_REV
|
---|
| 109 | int i, printed=0;
|
---|
| 110 | __u32 mask = s->s_default_mount_opts, m;
|
---|
| 111 |
|
---|
| 112 | fprintf(f, "Default mount options: ");
|
---|
| 113 | if (mask & EXT3_DEFM_JMODE) {
|
---|
| 114 | fprintf(f, " %s", e2p_mntopt2string(mask & EXT3_DEFM_JMODE));
|
---|
| 115 | printed++;
|
---|
| 116 | }
|
---|
| 117 | for (i=0,m=1; i < 32; i++, m<<=1) {
|
---|
| 118 | if (m & EXT3_DEFM_JMODE)
|
---|
| 119 | continue;
|
---|
| 120 | if (mask & m) {
|
---|
| 121 | fprintf(f, " %s", e2p_mntopt2string(m));
|
---|
| 122 | printed++;
|
---|
| 123 | }
|
---|
| 124 | }
|
---|
| 125 | if (printed == 0)
|
---|
| 126 | fprintf(f, " (none)");
|
---|
| 127 | fprintf(f, "\n");
|
---|
| 128 | #endif
|
---|
| 129 | }
|
---|
| 130 |
|
---|
| 131 |
|
---|
| 132 | #ifndef EXT2_INODE_SIZE
|
---|
| 133 | #define EXT2_INODE_SIZE(s) sizeof(struct ext2_inode)
|
---|
| 134 | #endif
|
---|
| 135 |
|
---|
| 136 | #ifndef EXT2_GOOD_OLD_REV
|
---|
| 137 | #define EXT2_GOOD_OLD_REV 0
|
---|
| 138 | #endif
|
---|
| 139 |
|
---|
| 140 | void list_super2(struct ext2_super_block * sb, FILE *f)
|
---|
| 141 | {
|
---|
| 142 | int inode_blocks_per_group;
|
---|
| 143 | char buf[80], *str;
|
---|
| 144 | time_t tm;
|
---|
| 145 |
|
---|
| 146 | inode_blocks_per_group = (((sb->s_inodes_per_group *
|
---|
| 147 | EXT2_INODE_SIZE(sb)) +
|
---|
| 148 | EXT2_BLOCK_SIZE(sb) - 1) /
|
---|
| 149 | EXT2_BLOCK_SIZE(sb));
|
---|
| 150 | if (sb->s_volume_name[0]) {
|
---|
| 151 | memset(buf, 0, sizeof(buf));
|
---|
| 152 | strncpy(buf, sb->s_volume_name, sizeof(sb->s_volume_name));
|
---|
| 153 | } else
|
---|
| 154 | strcpy(buf, "<none>");
|
---|
| 155 | fprintf(f, "Filesystem volume name: %s\n", buf);
|
---|
| 156 | if (sb->s_last_mounted[0]) {
|
---|
| 157 | memset(buf, 0, sizeof(buf));
|
---|
| 158 | strncpy(buf, sb->s_last_mounted, sizeof(sb->s_last_mounted));
|
---|
| 159 | } else
|
---|
| 160 | strcpy(buf, "<not available>");
|
---|
| 161 | fprintf(f,
|
---|
| 162 | "Last mounted on: %s\n"
|
---|
| 163 | "Filesystem UUID: %s\n"
|
---|
| 164 | "Filesystem magic number: 0x%04X\n"
|
---|
| 165 | "Filesystem revision #: %d",
|
---|
| 166 | buf, e2p_uuid2str(sb->s_uuid), sb->s_magic, sb->s_rev_level);
|
---|
| 167 | if (sb->s_rev_level == EXT2_GOOD_OLD_REV) {
|
---|
| 168 | fprintf(f, " (original)\n");
|
---|
| 169 | #ifdef EXT2_DYNAMIC_REV
|
---|
| 170 | } else if (sb->s_rev_level == EXT2_DYNAMIC_REV) {
|
---|
| 171 | fprintf(f, " (dynamic)\n");
|
---|
| 172 | #endif
|
---|
| 173 | } else
|
---|
| 174 | fprintf(f, " (unknown)\n");
|
---|
| 175 | print_features(sb, f);
|
---|
| 176 | print_mntopts(sb, f);
|
---|
| 177 | fprintf(f, "Filesystem state: ");
|
---|
| 178 | print_fs_state (f, sb->s_state);
|
---|
| 179 | fprintf(f, "\nErrors behavior: ");
|
---|
| 180 | print_fs_errors(f, sb->s_errors);
|
---|
| 181 | str = e2p_os2string(sb->s_creator_os);
|
---|
| 182 | fprintf(f,
|
---|
| 183 | "\n"
|
---|
| 184 | "Filesystem OS type: %s\n"
|
---|
| 185 | "Inode count: %u\n"
|
---|
| 186 | "Block count: %u\n"
|
---|
| 187 | "Reserved block count: %u\n"
|
---|
| 188 | "Free blocks: %u\n"
|
---|
| 189 | "Free inodes: %u\n"
|
---|
| 190 | "First block: %u\n"
|
---|
| 191 | "Block size: %u\n"
|
---|
| 192 | "Fragment size: %u\n",
|
---|
| 193 | str, sb->s_inodes_count, sb->s_blocks_count, sb->s_r_blocks_count,
|
---|
| 194 | sb->s_free_blocks_count, sb->s_free_inodes_count,
|
---|
| 195 | sb->s_first_data_block, EXT2_BLOCK_SIZE(sb), EXT2_FRAG_SIZE(sb));
|
---|
| 196 | free(str);
|
---|
| 197 | if (sb->s_reserved_gdt_blocks)
|
---|
| 198 | fprintf(f, "Reserved GDT blocks: %u\n",
|
---|
| 199 | sb->s_reserved_gdt_blocks);
|
---|
| 200 | fprintf(f,
|
---|
| 201 | "Blocks per group: %u\n"
|
---|
| 202 | "Fragments per group: %u\n"
|
---|
| 203 | "Inodes per group: %u\n"
|
---|
| 204 | "Inode blocks per group: %u\n",
|
---|
| 205 | sb->s_blocks_per_group, sb->s_frags_per_group,
|
---|
| 206 | sb->s_inodes_per_group, inode_blocks_per_group);
|
---|
| 207 | if (sb->s_first_meta_bg)
|
---|
| 208 | fprintf(f, "First meta block group: %u\n",
|
---|
| 209 | sb->s_first_meta_bg);
|
---|
| 210 | if (sb->s_mkfs_time) {
|
---|
| 211 | tm = sb->s_mkfs_time;
|
---|
| 212 | fprintf(f, "Filesystem created: %s", ctime(&tm));
|
---|
| 213 | }
|
---|
| 214 | tm = sb->s_mtime;
|
---|
| 215 | fprintf(f, "Last mount time: %s",
|
---|
| 216 | sb->s_mtime ? ctime(&tm) : "n/a\n");
|
---|
| 217 | tm = sb->s_wtime;
|
---|
| 218 | fprintf(f,
|
---|
| 219 | "Last write time: %s"
|
---|
| 220 | "Mount count: %u\n"
|
---|
| 221 | "Maximum mount count: %d\n",
|
---|
| 222 | ctime(&tm), sb->s_mnt_count, sb->s_max_mnt_count);
|
---|
| 223 | tm = sb->s_lastcheck;
|
---|
| 224 | fprintf(f,
|
---|
| 225 | "Last checked: %s"
|
---|
| 226 | "Check interval: %u (%s)\n",
|
---|
| 227 | ctime(&tm),
|
---|
| 228 | sb->s_checkinterval, interval_string(sb->s_checkinterval));
|
---|
| 229 | if (sb->s_checkinterval)
|
---|
| 230 | {
|
---|
| 231 | time_t next;
|
---|
| 232 |
|
---|
| 233 | next = sb->s_lastcheck + sb->s_checkinterval;
|
---|
| 234 | fprintf(f, "Next check after: %s", ctime(&next));
|
---|
| 235 | }
|
---|
| 236 | fprintf(f, "Reserved blocks uid: ");
|
---|
| 237 | print_user(sb->s_def_resuid, f);
|
---|
| 238 | fprintf(f, "Reserved blocks gid: ");
|
---|
| 239 | print_group(sb->s_def_resgid, f);
|
---|
| 240 | if (sb->s_rev_level >= EXT2_DYNAMIC_REV) {
|
---|
| 241 | fprintf(f,
|
---|
| 242 | "First inode: %d\n"
|
---|
| 243 | "Inode size: %d\n",
|
---|
| 244 | sb->s_first_ino, sb->s_inode_size);
|
---|
| 245 | }
|
---|
| 246 | if (!e2p_is_null_uuid(sb->s_journal_uuid))
|
---|
| 247 | fprintf(f, "Journal UUID: %s\n",
|
---|
| 248 | e2p_uuid2str(sb->s_journal_uuid));
|
---|
| 249 | if (sb->s_journal_inum)
|
---|
| 250 | fprintf(f, "Journal inode: %u\n",
|
---|
| 251 | sb->s_journal_inum);
|
---|
| 252 | if (sb->s_journal_dev)
|
---|
| 253 | fprintf(f, "Journal device: 0x%04x\n",
|
---|
| 254 | sb->s_journal_dev);
|
---|
| 255 | if (sb->s_last_orphan)
|
---|
| 256 | fprintf(f, "First orphan inode: %u\n",
|
---|
| 257 | sb->s_last_orphan);
|
---|
| 258 | if ((sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) ||
|
---|
| 259 | sb->s_def_hash_version)
|
---|
| 260 | fprintf(f, "Default directory hash: %s\n",
|
---|
| 261 | e2p_hash2string(sb->s_def_hash_version));
|
---|
| 262 | if (!e2p_is_null_uuid(sb->s_hash_seed))
|
---|
| 263 | fprintf(f, "Directory Hash Seed: %s\n",
|
---|
| 264 | e2p_uuid2str(sb->s_hash_seed));
|
---|
| 265 | if (sb->s_jnl_backup_type) {
|
---|
| 266 | fprintf(f, "Journal backup: ");
|
---|
| 267 | if (sb->s_jnl_backup_type == 1)
|
---|
| 268 | fprintf(f, "inode blocks\n");
|
---|
| 269 | else
|
---|
| 270 | fprintf(f, "type %u\n", sb->s_jnl_backup_type);
|
---|
| 271 | }
|
---|
| 272 | }
|
---|