Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 1 | /* |
| 2 | * debugfs.c --- a program which allows you to attach an ext2fs |
| 3 | * filesystem and play with it. |
| 4 | * |
| 5 | * Copyright (C) 1993 Theodore Ts'o. This file may be redistributed |
| 6 | * under the terms of the GNU Public License. |
| 7 | * |
| 8 | * Modifications by Robert Sanders <gt8134b@prism.gatech.edu> |
| 9 | */ |
| 10 | |
| 11 | #include <stdio.h> |
| 12 | #include <unistd.h> |
| 13 | #include <stdlib.h> |
| 14 | #include <ctype.h> |
| 15 | #include <string.h> |
| 16 | #include <time.h> |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 17 | #ifdef HAVE_GETOPT_H |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 18 | #include <getopt.h> |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 19 | #else |
| 20 | extern int optind; |
| 21 | extern char *optarg; |
| 22 | #endif |
| 23 | #ifdef HAVE_OPTRESET |
| 24 | extern int optreset; /* defined by BSD, but not others */ |
| 25 | #endif |
| 26 | #ifdef HAVE_ERRNO_H |
| 27 | #include <errno.h> |
| 28 | #endif |
| 29 | #include <fcntl.h> |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 30 | #include <sys/types.h> |
| 31 | #include <sys/stat.h> |
| 32 | |
| 33 | #include "et/com_err.h" |
| 34 | #include "ss/ss.h" |
| 35 | #include "debugfs.h" |
| 36 | |
| 37 | extern ss_request_table debug_cmds; |
| 38 | |
| 39 | ext2_filsys fs = NULL; |
| 40 | ino_t root, cwd; |
| 41 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 42 | static void open_filesystem(char *device, int open_flags) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 43 | { |
| 44 | int retval; |
| 45 | |
| 46 | retval = ext2fs_open(device, open_flags, 0, 0, unix_io_manager, &fs); |
| 47 | if (retval) { |
| 48 | com_err(device, retval, "while opening filesystem"); |
| 49 | fs = NULL; |
| 50 | return; |
| 51 | } |
| 52 | retval = ext2fs_read_inode_bitmap(fs); |
| 53 | if (retval) { |
| 54 | com_err(device, retval, "while reading inode bitmap"); |
| 55 | goto errout; |
| 56 | } |
| 57 | retval = ext2fs_read_block_bitmap(fs); |
| 58 | if (retval) { |
| 59 | com_err(device, retval, "while reading block bitmap"); |
| 60 | goto errout; |
| 61 | } |
| 62 | root = cwd = EXT2_ROOT_INO; |
| 63 | return; |
| 64 | |
| 65 | errout: |
| 66 | retval = ext2fs_close(fs); |
| 67 | if (retval) |
| 68 | com_err(device, retval, "while trying to close filesystem"); |
| 69 | fs = NULL; |
| 70 | } |
| 71 | |
| 72 | void do_open_filesys(int argc, char **argv) |
| 73 | { |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 74 | const char *usage = "Usage: open [-w] <device>"; |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 75 | char c; |
| 76 | int open_flags = 0; |
| 77 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 78 | optind = 1; |
| 79 | #ifdef HAVE_OPTRESET |
| 80 | optreset = 1; /* Makes BSD getopt happy */ |
| 81 | #endif |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 82 | while ((c = getopt (argc, argv, "w")) != EOF) { |
| 83 | switch (c) { |
| 84 | case 'w': |
| 85 | open_flags = EXT2_FLAG_RW; |
| 86 | break; |
| 87 | default: |
| 88 | com_err(argv[0], 0, usage); |
| 89 | return; |
| 90 | } |
| 91 | } |
| 92 | if (optind != argc-1) { |
| 93 | com_err(argv[0], 0, usage); |
| 94 | return; |
| 95 | } |
| 96 | if (check_fs_not_open(argv[0])) |
| 97 | return; |
| 98 | open_filesystem(argv[optind], open_flags); |
| 99 | } |
| 100 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 101 | static void close_filesystem(NOARGS) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 102 | { |
| 103 | int retval; |
| 104 | |
| 105 | if (fs->flags & EXT2_FLAG_IB_DIRTY) { |
| 106 | retval = ext2fs_write_inode_bitmap(fs); |
| 107 | if (retval) |
| 108 | com_err("ext2fs_write_inode_bitmap", retval, ""); |
| 109 | } |
| 110 | if (fs->flags & EXT2_FLAG_BB_DIRTY) { |
| 111 | retval = ext2fs_write_block_bitmap(fs); |
| 112 | if (retval) |
| 113 | com_err("ext2fs_write_block_bitmap", retval, ""); |
| 114 | } |
| 115 | retval = ext2fs_close(fs); |
| 116 | if (retval) |
| 117 | com_err("ext2fs_close", retval, ""); |
| 118 | fs = NULL; |
| 119 | return; |
| 120 | } |
| 121 | |
| 122 | void do_close_filesys(int argc, char **argv) |
| 123 | { |
| 124 | if (argc > 1) { |
| 125 | com_err(argv[0], 0, "Usage: close_filesys"); |
| 126 | return; |
| 127 | } |
| 128 | if (check_fs_open(argv[0])) |
| 129 | return; |
| 130 | close_filesystem(); |
| 131 | } |
| 132 | |
| 133 | void do_init_filesys(int argc, char **argv) |
| 134 | { |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 135 | const char *usage = "Usage: initialize <device> <blocksize>"; |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 136 | struct ext2_super_block param; |
| 137 | errcode_t retval; |
| 138 | char *tmp; |
| 139 | |
| 140 | if (argc != 3) { |
| 141 | com_err(argv[0], 0, usage); |
| 142 | return; |
| 143 | } |
| 144 | if (check_fs_not_open(argv[0])) |
| 145 | return; |
| 146 | |
| 147 | memset(¶m, 0, sizeof(struct ext2_super_block)); |
| 148 | param.s_blocks_count = strtoul(argv[2], &tmp, 0); |
| 149 | if (*tmp) { |
| 150 | com_err(argv[0], 0, "Bad blocks count - %s", argv[2]); |
| 151 | return; |
| 152 | } |
| 153 | retval = ext2fs_initialize(argv[1], 0, ¶m, unix_io_manager, &fs); |
| 154 | if (retval) { |
| 155 | com_err(argv[1], retval, "while initializing filesystem"); |
| 156 | fs = NULL; |
| 157 | return; |
| 158 | } |
| 159 | root = cwd = EXT2_ROOT_INO; |
| 160 | return; |
| 161 | } |
| 162 | |
| 163 | void do_show_super_stats(int argc, char *argv[]) |
| 164 | { |
| 165 | int i; |
| 166 | FILE *out; |
| 167 | |
| 168 | if (argc > 1) { |
| 169 | com_err(argv[0], 0, "Usage: show_super"); |
| 170 | return; |
| 171 | } |
| 172 | if (check_fs_open(argv[0])) |
| 173 | return; |
| 174 | out = open_pager(); |
| 175 | fprintf(out, "Filesystem is read-%s\n", fs->flags & EXT2_FLAG_RW ? |
| 176 | "write" : "only"); |
| 177 | fprintf(out, "Last mount time = %s", ctime(&fs->super->s_mtime)); |
| 178 | fprintf(out, "Last write time = %s", ctime(&fs->super->s_wtime)); |
| 179 | fprintf(out, "Mount counts = %d (maximal = %d)\n", |
| 180 | fs->super->s_mnt_count, fs->super->s_max_mnt_count); |
| 181 | fprintf(out, "Superblock size = %d\n", sizeof(struct ext2_super_block)); |
| 182 | fprintf(out, "Block size = %d, fragment size = %d\n", |
| 183 | EXT2_BLOCK_SIZE(fs->super), EXT2_FRAG_SIZE(fs->super)); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 184 | fprintf(out, "%d inodes, %d free\n", fs->super->s_inodes_count, |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 185 | fs->super->s_free_inodes_count); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 186 | fprintf(out, "%d blocks, %d free, %d reserved, first block = %d\n", |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 187 | fs->super->s_blocks_count, fs->super->s_free_blocks_count, |
| 188 | fs->super->s_r_blocks_count, fs->super->s_first_data_block); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 189 | fprintf(out, "%d blocks per group\n", fs->super->s_blocks_per_group); |
| 190 | fprintf(out, "%d fragments per group\n", fs->super->s_frags_per_group); |
| 191 | fprintf(out, "%d inodes per group\n", EXT2_INODES_PER_GROUP(fs->super)); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 192 | fprintf(out, "%d inodes per block\n", EXT2_INODES_PER_BLOCK(fs->super)); |
| 193 | fprintf(out, "%ld group%s (%ld descriptors block%s)\n", |
| 194 | fs->group_desc_count, (fs->group_desc_count != 1) ? "s" : "", |
| 195 | fs->desc_blocks, (fs->desc_blocks != 1) ? "s" : ""); |
| 196 | for (i = 0; i < fs->group_desc_count; i++) |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 197 | fprintf(out, " Group %2d: block bitmap at %d, " |
| 198 | "inode bitmap at %d, " |
| 199 | "inode table at %d\n" |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 200 | " %d free block%s, " |
| 201 | "%d free inode%s, " |
| 202 | "%d used director%s\n", |
| 203 | i, fs->group_desc[i].bg_block_bitmap, |
| 204 | fs->group_desc[i].bg_inode_bitmap, |
| 205 | fs->group_desc[i].bg_inode_table, |
| 206 | fs->group_desc[i].bg_free_blocks_count, |
| 207 | fs->group_desc[i].bg_free_blocks_count != 1 ? "s" : "", |
| 208 | fs->group_desc[i].bg_free_inodes_count, |
| 209 | fs->group_desc[i].bg_free_inodes_count != 1 ? "s" : "", |
| 210 | fs->group_desc[i].bg_used_dirs_count, |
| 211 | fs->group_desc[i].bg_used_dirs_count != 1 ? "ies" : "y"); |
| 212 | close_pager(out); |
| 213 | } |
| 214 | |
| 215 | struct list_blocks_struct { |
| 216 | FILE *f; |
| 217 | int total; |
| 218 | }; |
| 219 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 220 | static int list_blocks_proc(ext2_filsys fs, blk_t *blocknr, int blockcnt, |
| 221 | void *private) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 222 | { |
| 223 | struct list_blocks_struct *lb = (struct list_blocks_struct *) private; |
| 224 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 225 | fprintf(lb->f, "%d ", *blocknr); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 226 | lb->total++; |
| 227 | return 0; |
| 228 | } |
| 229 | |
| 230 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 231 | static void dump_blocks(FILE *f, ino_t inode) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 232 | { |
| 233 | struct list_blocks_struct lb; |
| 234 | |
| 235 | fprintf(f, "BLOCKS:\n"); |
| 236 | lb.total = 0; |
| 237 | lb.f = f; |
| 238 | ext2fs_block_iterate(fs,inode,0,NULL,list_blocks_proc,(void *)&lb); |
| 239 | if (lb.total) |
| 240 | fprintf(f, "\nTOTAL: %d\n", lb.total); |
| 241 | fprintf(f,"\n"); |
| 242 | } |
| 243 | |
| 244 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 245 | static void dump_inode(ino_t inode_num, struct ext2_inode inode) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 246 | { |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 247 | const char *i_type; |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 248 | FILE *out; |
| 249 | |
| 250 | out = open_pager(); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 251 | if (LINUX_S_ISDIR(inode.i_mode)) i_type = "directory"; |
| 252 | else if (LINUX_S_ISREG(inode.i_mode)) i_type = "regular"; |
| 253 | else if (LINUX_S_ISLNK(inode.i_mode)) i_type = "symlink"; |
| 254 | else if (LINUX_S_ISBLK(inode.i_mode)) i_type = "block special"; |
| 255 | else if (LINUX_S_ISCHR(inode.i_mode)) i_type = "character special"; |
| 256 | else if (LINUX_S_ISFIFO(inode.i_mode)) i_type = "FIFO"; |
| 257 | else if (LINUX_S_ISSOCK(inode.i_mode)) i_type = "socket"; |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 258 | else i_type = "bad type"; |
| 259 | fprintf(out, "Inode: %ld Type: %s ", inode_num, i_type); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 260 | fprintf(out, "Mode: %04o Flags: 0x%x Version: %d\n", |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 261 | inode.i_mode & 0777, inode.i_flags, inode.i_version); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 262 | fprintf(out, "User: %5d Group: %5d Size: %d\n", |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 263 | inode.i_uid, inode.i_gid, inode.i_size); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 264 | fprintf(out, "File ACL: %d Directory ACL: %d\n", |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 265 | inode.i_file_acl, inode.i_dir_acl); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 266 | fprintf(out, "Links: %d Blockcount: %d\n", inode.i_links_count, |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 267 | inode.i_blocks); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 268 | #if HAVE_EXT2_FRAGS |
| 269 | fprintf(out, "Fragment: Address: %d Number: %d Size: %d\n", |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 270 | inode.i_faddr, inode.i_frag, inode.i_fsize); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 271 | #endif |
| 272 | fprintf(out, "ctime: 0x%08x -- %s", inode.i_ctime, |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 273 | ctime(&inode.i_ctime)); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 274 | fprintf(out, "atime: 0x%08x -- %s", inode.i_atime, |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 275 | ctime(&inode.i_atime)); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 276 | fprintf(out, "mtime: 0x%08x -- %s", inode.i_mtime, |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 277 | ctime(&inode.i_mtime)); |
| 278 | if (inode.i_dtime) |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 279 | fprintf(out, "dtime: 0x%08x -- %s", inode.i_dtime, |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 280 | ctime(&inode.i_dtime)); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 281 | if (LINUX_S_ISLNK(inode.i_mode) && inode.i_blocks == 0) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 282 | fprintf(out, "Fast_link_dest: %s\n", (char *)inode.i_block); |
| 283 | else |
| 284 | dump_blocks(out, inode_num); |
| 285 | close_pager(out); |
| 286 | } |
| 287 | |
| 288 | |
| 289 | void do_stat(int argc, char *argv[]) |
| 290 | { |
| 291 | ino_t inode; |
| 292 | struct ext2_inode inode_buf; |
| 293 | int retval; |
| 294 | |
| 295 | if (argc != 2) { |
| 296 | com_err(argv[0], 0, "Usage: stat <file>"); |
| 297 | return; |
| 298 | } |
| 299 | if (check_fs_open(argv[0])) |
| 300 | return; |
| 301 | inode = string_to_inode(argv[1]); |
| 302 | if (!inode) |
| 303 | return; |
| 304 | |
| 305 | retval = ext2fs_read_inode(fs,inode,&inode_buf); |
| 306 | if (retval) |
| 307 | { |
| 308 | com_err(argv[0], 0, "Reading inode"); |
| 309 | return; |
| 310 | } |
| 311 | |
| 312 | dump_inode(inode,inode_buf); |
| 313 | return; |
| 314 | } |
| 315 | |
| 316 | void do_chroot(int argc, char *argv[]) |
| 317 | { |
| 318 | ino_t inode; |
| 319 | int retval; |
| 320 | |
| 321 | if (argc != 2) { |
| 322 | com_err(argv[0], 0, "Usage: chroot <file>"); |
| 323 | return; |
| 324 | } |
| 325 | if (check_fs_open(argv[0])) |
| 326 | return; |
| 327 | inode = string_to_inode(argv[1]); |
| 328 | if (!inode) |
| 329 | return; |
| 330 | |
| 331 | retval = ext2fs_check_directory(fs, inode); |
| 332 | if (retval) { |
| 333 | com_err(argv[1], retval, ""); |
| 334 | return; |
| 335 | } |
| 336 | root = inode; |
| 337 | } |
| 338 | |
| 339 | void do_clri(int argc, char *argv[]) |
| 340 | { |
| 341 | ino_t inode; |
| 342 | int retval; |
| 343 | struct ext2_inode inode_buf; |
| 344 | |
| 345 | if (argc != 2) { |
| 346 | com_err(argv[0], 0, "Usage: clri <file>"); |
| 347 | return; |
| 348 | } |
| 349 | if (check_fs_open(argv[0])) |
| 350 | return; |
| 351 | if (!(fs->flags & EXT2_FLAG_RW)) { |
| 352 | com_err(argv[0], 0, "Filesystem opened read/only"); |
| 353 | return; |
| 354 | } |
| 355 | inode = string_to_inode(argv[1]); |
| 356 | if (!inode) |
| 357 | return; |
| 358 | |
| 359 | retval = ext2fs_read_inode(fs, inode, &inode_buf); |
| 360 | if (retval) { |
| 361 | com_err(argv[0], 0, "while trying to read inode %d", inode); |
| 362 | return; |
| 363 | } |
| 364 | memset(&inode_buf, 0, sizeof(inode_buf)); |
| 365 | retval = ext2fs_write_inode(fs, inode, &inode_buf); |
| 366 | if (retval) { |
| 367 | com_err(argv[0], retval, "while trying to write inode %d", |
| 368 | inode); |
| 369 | return; |
| 370 | } |
| 371 | } |
| 372 | |
| 373 | void do_freei(int argc, char *argv[]) |
| 374 | { |
| 375 | ino_t inode; |
| 376 | |
| 377 | if (argc != 2) { |
| 378 | com_err(argv[0], 0, "Usage: freei <file>"); |
| 379 | return; |
| 380 | } |
| 381 | if (check_fs_open(argv[0])) |
| 382 | return; |
| 383 | if (!(fs->flags & EXT2_FLAG_RW)) { |
| 384 | com_err(argv[0], 0, "Filesystem opened read/only"); |
| 385 | return; |
| 386 | } |
| 387 | inode = string_to_inode(argv[1]); |
| 388 | if (!inode) |
| 389 | return; |
| 390 | |
Theodore Ts'o | f3db356 | 1997-04-26 13:34:30 +0000 | [diff] [blame] | 391 | if (!ext2fs_test_inode_bitmap(fs->inode_map,inode)) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 392 | com_err(argv[0], 0, "Warning: inode already clear"); |
Theodore Ts'o | f3db356 | 1997-04-26 13:34:30 +0000 | [diff] [blame] | 393 | ext2fs_unmark_inode_bitmap(fs->inode_map,inode); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 394 | ext2fs_mark_ib_dirty(fs); |
| 395 | } |
| 396 | |
| 397 | void do_seti(int argc, char *argv[]) |
| 398 | { |
| 399 | ino_t inode; |
| 400 | |
| 401 | if (argc != 2) { |
| 402 | com_err(argv[0], 0, "Usage: seti <file>"); |
| 403 | return; |
| 404 | } |
| 405 | if (check_fs_open(argv[0])) |
| 406 | return; |
| 407 | if (!(fs->flags & EXT2_FLAG_RW)) { |
| 408 | com_err(argv[0], 0, "Filesystem opened read/only"); |
| 409 | return; |
| 410 | } |
| 411 | inode = string_to_inode(argv[1]); |
| 412 | if (!inode) |
| 413 | return; |
| 414 | |
Theodore Ts'o | f3db356 | 1997-04-26 13:34:30 +0000 | [diff] [blame] | 415 | if (ext2fs_test_inode_bitmap(fs->inode_map,inode)) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 416 | com_err(argv[0], 0, "Warning: inode already set"); |
Theodore Ts'o | f3db356 | 1997-04-26 13:34:30 +0000 | [diff] [blame] | 417 | ext2fs_mark_inode_bitmap(fs->inode_map,inode); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 418 | ext2fs_mark_ib_dirty(fs); |
| 419 | } |
| 420 | |
| 421 | void do_testi(int argc, char *argv[]) |
| 422 | { |
| 423 | ino_t inode; |
| 424 | |
| 425 | if (argc != 2) { |
| 426 | com_err(argv[0], 0, "Usage: testi <file>"); |
| 427 | return; |
| 428 | } |
| 429 | if (check_fs_open(argv[0])) |
| 430 | return; |
| 431 | inode = string_to_inode(argv[1]); |
| 432 | if (!inode) |
| 433 | return; |
| 434 | |
Theodore Ts'o | f3db356 | 1997-04-26 13:34:30 +0000 | [diff] [blame] | 435 | if (ext2fs_test_inode_bitmap(fs->inode_map,inode)) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 436 | printf("Inode %ld is marked in use\n", inode); |
| 437 | else |
| 438 | printf("Inode %ld is not in use\n", inode); |
| 439 | } |
| 440 | |
| 441 | |
| 442 | void do_freeb(int argc, char *argv[]) |
| 443 | { |
| 444 | blk_t block; |
| 445 | char *tmp; |
| 446 | |
| 447 | if (argc != 2) { |
| 448 | com_err(argv[0], 0, "Usage: freeb <block>"); |
| 449 | return; |
| 450 | } |
| 451 | if (check_fs_open(argv[0])) |
| 452 | return; |
| 453 | if (!(fs->flags & EXT2_FLAG_RW)) { |
| 454 | com_err(argv[0], 0, "Filesystem opened read/only"); |
| 455 | return; |
| 456 | } |
| 457 | block = strtoul(argv[1], &tmp, 0); |
| 458 | if (!block || *tmp) { |
| 459 | com_err(argv[0], 0, "No block 0"); |
| 460 | return; |
| 461 | } |
Theodore Ts'o | f3db356 | 1997-04-26 13:34:30 +0000 | [diff] [blame] | 462 | if (!ext2fs_test_block_bitmap(fs->block_map,block)) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 463 | com_err(argv[0], 0, "Warning: block already clear"); |
Theodore Ts'o | f3db356 | 1997-04-26 13:34:30 +0000 | [diff] [blame] | 464 | ext2fs_unmark_block_bitmap(fs->block_map,block); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 465 | ext2fs_mark_bb_dirty(fs); |
| 466 | } |
| 467 | |
| 468 | void do_setb(int argc, char *argv[]) |
| 469 | { |
| 470 | blk_t block; |
| 471 | char *tmp; |
| 472 | |
| 473 | if (argc != 2) { |
| 474 | com_err(argv[0], 0, "Usage: setb <block>"); |
| 475 | return; |
| 476 | } |
| 477 | if (check_fs_open(argv[0])) |
| 478 | return; |
| 479 | if (!(fs->flags & EXT2_FLAG_RW)) { |
| 480 | com_err(argv[0], 0, "Filesystem opened read/only"); |
| 481 | return; |
| 482 | } |
| 483 | block = strtoul(argv[1], &tmp, 0); |
| 484 | if (!block || *tmp) { |
| 485 | com_err(argv[0], 0, "No block 0"); |
| 486 | return; |
| 487 | } |
Theodore Ts'o | f3db356 | 1997-04-26 13:34:30 +0000 | [diff] [blame] | 488 | if (ext2fs_test_block_bitmap(fs->block_map,block)) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 489 | com_err(argv[0], 0, "Warning: block already set"); |
Theodore Ts'o | f3db356 | 1997-04-26 13:34:30 +0000 | [diff] [blame] | 490 | ext2fs_mark_block_bitmap(fs->block_map,block); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 491 | ext2fs_mark_bb_dirty(fs); |
| 492 | } |
| 493 | |
| 494 | void do_testb(int argc, char *argv[]) |
| 495 | { |
| 496 | blk_t block; |
| 497 | char *tmp; |
| 498 | |
| 499 | if (argc != 2) { |
| 500 | com_err(argv[0], 0, "Usage: testb <block>"); |
| 501 | return; |
| 502 | } |
| 503 | if (check_fs_open(argv[0])) |
| 504 | return; |
| 505 | block = strtoul(argv[1], &tmp, 0); |
| 506 | if (!block || *tmp) { |
| 507 | com_err(argv[0], 0, "No block 0"); |
| 508 | return; |
| 509 | } |
Theodore Ts'o | f3db356 | 1997-04-26 13:34:30 +0000 | [diff] [blame] | 510 | if (ext2fs_test_block_bitmap(fs->block_map,block)) |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 511 | printf("Block %d marked in use\n", block); |
| 512 | else printf("Block %d not in use\n", block); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 513 | } |
| 514 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 515 | static void modify_u8(char *com, const char *prompt, |
| 516 | const char *format, __u8 *val) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 517 | { |
| 518 | char buf[200]; |
| 519 | u_char v; |
| 520 | char *tmp; |
| 521 | |
| 522 | sprintf(buf, format, *val); |
| 523 | printf("%30s [%s] ", prompt, buf); |
| 524 | fgets(buf, sizeof(buf), stdin); |
| 525 | if (buf[strlen (buf) - 1] == '\n') |
| 526 | buf[strlen (buf) - 1] = '\0'; |
| 527 | if (!buf[0]) |
| 528 | return; |
| 529 | v = strtol(buf, &tmp, 0); |
| 530 | if (*tmp) |
| 531 | com_err(com, 0, "Bad value - %s", buf); |
| 532 | else |
| 533 | *val = v; |
| 534 | } |
| 535 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 536 | static void modify_u16(char *com, const char *prompt, |
| 537 | const char *format, __u16 *val) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 538 | { |
| 539 | char buf[200]; |
| 540 | u_short v; |
| 541 | char *tmp; |
| 542 | |
| 543 | sprintf(buf, format, *val); |
| 544 | printf("%30s [%s] ", prompt, buf); |
| 545 | fgets(buf, sizeof(buf), stdin); |
| 546 | if (buf[strlen (buf) - 1] == '\n') |
| 547 | buf[strlen (buf) - 1] = '\0'; |
| 548 | if (!buf[0]) |
| 549 | return; |
| 550 | v = strtol(buf, &tmp, 0); |
| 551 | if (*tmp) |
| 552 | com_err(com, 0, "Bad value - %s", buf); |
| 553 | else |
| 554 | *val = v; |
| 555 | } |
| 556 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 557 | static void modify_u32(char *com, const char *prompt, |
| 558 | const char *format, __u32 *val) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 559 | { |
| 560 | char buf[200]; |
| 561 | u_long v; |
| 562 | char *tmp; |
| 563 | |
| 564 | sprintf(buf, format, *val); |
| 565 | printf("%30s [%s] ", prompt, buf); |
| 566 | fgets(buf, sizeof(buf), stdin); |
| 567 | if (buf[strlen (buf) - 1] == '\n') |
| 568 | buf[strlen (buf) - 1] = '\0'; |
| 569 | if (!buf[0]) |
| 570 | return; |
| 571 | v = strtol(buf, &tmp, 0); |
| 572 | if (*tmp) |
| 573 | com_err(com, 0, "Bad value - %s", buf); |
| 574 | else |
| 575 | *val = v; |
| 576 | } |
| 577 | |
| 578 | |
| 579 | void do_modify_inode(int argc, char *argv[]) |
| 580 | { |
| 581 | struct ext2_inode inode; |
| 582 | ino_t inode_num; |
| 583 | int i; |
| 584 | errcode_t retval; |
| 585 | char buf[80]; |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 586 | const char *hex_format = "0x%x"; |
| 587 | const char *octal_format = "0%o"; |
| 588 | const char *decimal_format = "%d"; |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 589 | |
| 590 | if (argc != 2) { |
| 591 | com_err(argv[0], 0, "Usage: modify_inode <file>"); |
| 592 | return; |
| 593 | } |
| 594 | if (check_fs_open(argv[0])) |
| 595 | return; |
| 596 | if (!(fs->flags & EXT2_FLAG_RW)) { |
| 597 | com_err(argv[0], 0, "Filesystem opened read/only"); |
| 598 | return; |
| 599 | } |
| 600 | |
| 601 | inode_num = string_to_inode(argv[1]); |
| 602 | if (!inode_num) |
| 603 | return; |
| 604 | |
| 605 | retval = ext2fs_read_inode(fs, inode_num, &inode); |
| 606 | if (retval) { |
| 607 | com_err(argv[1], retval, "while trying to read inode %d", |
| 608 | inode_num); |
| 609 | return; |
| 610 | } |
| 611 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 612 | modify_u16(argv[0], "Mode", octal_format, &inode.i_mode); |
| 613 | modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid); |
| 614 | modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid); |
| 615 | modify_u32(argv[0], "Size", decimal_format, &inode.i_size); |
| 616 | modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime); |
| 617 | modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime); |
| 618 | modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime); |
| 619 | modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime); |
| 620 | modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count); |
| 621 | modify_u32(argv[0], "Block count", decimal_format, &inode.i_blocks); |
| 622 | modify_u32(argv[0], "File flags", hex_format, &inode.i_flags); |
| 623 | #if 0 |
| 624 | modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1); |
| 625 | #endif |
| 626 | modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl); |
| 627 | modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl); |
| 628 | modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr); |
| 629 | #if HAVE_EXT2_FRAGS |
| 630 | modify_u8(argv[0], "Fragment number", decimal_format, &inode.i_frag); |
| 631 | modify_u8(argv[0], "Fragment size", decimal_format, &inode.i_fsize); |
| 632 | #endif |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 633 | for (i=0; i < EXT2_NDIR_BLOCKS; i++) { |
| 634 | sprintf(buf, "Direct Block #%d", i); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 635 | modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 636 | } |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 637 | modify_u32(argv[0], "Indirect Block", decimal_format, |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 638 | &inode.i_block[EXT2_IND_BLOCK]); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 639 | modify_u32(argv[0], "Double Indirect Block", decimal_format, |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 640 | &inode.i_block[EXT2_DIND_BLOCK]); |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 641 | modify_u32(argv[0], "Triple Indirect Block", decimal_format, |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 642 | &inode.i_block[EXT2_TIND_BLOCK]); |
| 643 | retval = ext2fs_write_inode(fs, inode_num, &inode); |
| 644 | if (retval) { |
| 645 | com_err(argv[1], retval, "while trying to write inode %d", |
| 646 | inode_num); |
| 647 | return; |
| 648 | } |
| 649 | } |
| 650 | |
| 651 | /* |
| 652 | * list directory |
| 653 | */ |
| 654 | |
| 655 | struct list_dir_struct { |
| 656 | FILE *f; |
| 657 | int col; |
| 658 | }; |
| 659 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 660 | static int list_dir_proc(struct ext2_dir_entry *dirent, |
| 661 | int offset, |
| 662 | int blocksize, |
| 663 | char *buf, |
| 664 | void *private) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 665 | { |
| 666 | char name[EXT2_NAME_LEN]; |
| 667 | char tmp[EXT2_NAME_LEN + 16]; |
| 668 | |
| 669 | struct list_dir_struct *ls = (struct list_dir_struct *) private; |
| 670 | int thislen; |
| 671 | |
| 672 | thislen = (dirent->name_len < EXT2_NAME_LEN) ? dirent->name_len : |
| 673 | EXT2_NAME_LEN; |
| 674 | strncpy(name, dirent->name, thislen); |
| 675 | name[thislen] = '\0'; |
| 676 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 677 | sprintf(tmp, "%d (%d) %s ", dirent->inode, dirent->rec_len, name); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 678 | thislen = strlen(tmp); |
| 679 | |
| 680 | if (ls->col + thislen > 80) { |
| 681 | fprintf(ls->f, "\n"); |
| 682 | ls->col = 0; |
| 683 | } |
| 684 | fprintf(ls->f, "%s", tmp); |
| 685 | ls->col += thislen; |
| 686 | |
| 687 | return 0; |
| 688 | } |
| 689 | |
| 690 | void do_list_dir(int argc, char *argv[]) |
| 691 | { |
| 692 | ino_t inode; |
| 693 | int retval; |
| 694 | struct list_dir_struct ls; |
| 695 | |
| 696 | if (argc > 2) { |
| 697 | com_err(argv[0], 0, "Usage: list_dir [pathname]"); |
| 698 | return; |
| 699 | } |
| 700 | if (check_fs_open(argv[0])) |
| 701 | return; |
| 702 | |
| 703 | if (argc == 2) |
| 704 | inode = string_to_inode(argv[1]); |
| 705 | else |
| 706 | inode = cwd; |
| 707 | if (!inode) |
| 708 | return; |
| 709 | |
| 710 | ls.f = open_pager(); |
| 711 | ls.col = 0; |
| 712 | retval = ext2fs_dir_iterate(fs, inode, DIRENT_FLAG_INCLUDE_EMPTY, |
| 713 | 0, list_dir_proc, &ls); |
| 714 | fprintf(ls.f, "\n"); |
| 715 | close_pager(ls.f); |
| 716 | if (retval) |
| 717 | com_err(argv[1], retval, ""); |
| 718 | |
| 719 | return; |
| 720 | } |
| 721 | |
| 722 | void do_change_working_dir(int argc, char *argv[]) |
| 723 | { |
| 724 | ino_t inode; |
| 725 | int retval; |
| 726 | |
| 727 | if (argc != 2) { |
| 728 | com_err(argv[0], 0, "Usage: cd <file>"); |
| 729 | return; |
| 730 | } |
| 731 | if (check_fs_open(argv[0])) |
| 732 | return; |
| 733 | |
| 734 | inode = string_to_inode(argv[1]); |
| 735 | if (!inode) |
| 736 | return; |
| 737 | |
| 738 | retval = ext2fs_check_directory(fs, inode); |
| 739 | if (retval) { |
| 740 | com_err(argv[1], retval, ""); |
| 741 | return; |
| 742 | } |
| 743 | cwd = inode; |
| 744 | return; |
| 745 | } |
| 746 | |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 747 | void do_print_working_directory(int argc, char *argv[]) |
| 748 | { |
| 749 | int retval; |
| 750 | char *pathname = NULL; |
| 751 | |
| 752 | if (argc > 1) { |
| 753 | com_err(argv[0], 0, "Usage: print_working_directory"); |
| 754 | return; |
| 755 | } |
| 756 | if (check_fs_open(argv[0])) |
| 757 | return; |
| 758 | |
| 759 | retval = ext2fs_get_pathname(fs, cwd, 0, &pathname); |
| 760 | if (retval) { |
| 761 | com_err(argv[0], retval, |
| 762 | "while trying to get pathname of cwd"); |
| 763 | } |
| 764 | printf("[pwd] INODE: %6ld PATH: %s\n", cwd, pathname); |
| 765 | free(pathname); |
| 766 | retval = ext2fs_get_pathname(fs, root, 0, &pathname); |
| 767 | if (retval) { |
| 768 | com_err(argv[0], retval, |
| 769 | "while trying to get pathname of root"); |
| 770 | } |
| 771 | printf("[root] INODE: %6ld PATH: %s\n", root, pathname); |
| 772 | free(pathname); |
| 773 | return; |
| 774 | } |
| 775 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 776 | static void make_link(char *sourcename, char *destname) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 777 | { |
| 778 | ino_t inode; |
| 779 | int retval; |
| 780 | ino_t dir; |
| 781 | char *dest, *cp, *basename; |
| 782 | |
| 783 | /* |
| 784 | * Get the source inode |
| 785 | */ |
| 786 | inode = string_to_inode(sourcename); |
| 787 | if (!inode) |
| 788 | return; |
| 789 | basename = strrchr(sourcename, '/'); |
| 790 | if (basename) |
| 791 | basename++; |
| 792 | else |
| 793 | basename = sourcename; |
| 794 | /* |
| 795 | * Figure out the destination. First see if it exists and is |
| 796 | * a directory. |
| 797 | */ |
| 798 | if (! (retval=ext2fs_namei(fs, root, cwd, destname, &dir))) |
| 799 | dest = basename; |
| 800 | else { |
| 801 | /* |
| 802 | * OK, it doesn't exist. See if it is |
| 803 | * '<dir>/basename' or 'basename' |
| 804 | */ |
| 805 | cp = strrchr(destname, '/'); |
| 806 | if (cp) { |
| 807 | *cp = 0; |
| 808 | dir = string_to_inode(destname); |
| 809 | if (!dir) |
| 810 | return; |
| 811 | dest = cp+1; |
| 812 | } else { |
| 813 | dir = cwd; |
| 814 | dest = destname; |
| 815 | } |
| 816 | } |
| 817 | |
| 818 | retval = ext2fs_link(fs, dir, dest, inode, 0); |
| 819 | if (retval) |
| 820 | com_err("make_link", retval, ""); |
| 821 | return; |
| 822 | } |
| 823 | |
| 824 | |
| 825 | void do_link(int argc, char *argv[]) |
| 826 | { |
| 827 | if (argc != 3) { |
| 828 | com_err(argv[0], 0, "Usage: link <source_file> <dest_name>"); |
| 829 | return; |
| 830 | } |
| 831 | if (check_fs_open(argv[0])) |
| 832 | return; |
| 833 | |
| 834 | make_link(argv[1], argv[2]); |
| 835 | } |
| 836 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 837 | static void unlink_file_by_name(char *filename) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 838 | { |
| 839 | int retval; |
| 840 | ino_t dir; |
| 841 | char *basename; |
| 842 | |
| 843 | basename = strrchr(filename, '/'); |
| 844 | if (basename) { |
| 845 | *basename++ = '0'; |
| 846 | dir = string_to_inode(filename); |
| 847 | if (!dir) |
| 848 | return; |
| 849 | } else { |
| 850 | dir = cwd; |
| 851 | basename = filename; |
| 852 | } |
| 853 | retval = ext2fs_unlink(fs, dir, basename, 0, 0); |
| 854 | if (retval) |
| 855 | com_err("unlink_file_by_name", retval, ""); |
| 856 | return; |
| 857 | } |
| 858 | |
| 859 | void do_unlink(int argc, char *argv[]) |
| 860 | { |
| 861 | if (argc != 2) { |
| 862 | com_err(argv[0], 0, "Usage: unlink <pathname>"); |
| 863 | return; |
| 864 | } |
| 865 | if (check_fs_open(argv[0])) |
| 866 | return; |
| 867 | |
| 868 | unlink_file_by_name(argv[1]); |
| 869 | } |
| 870 | |
| 871 | void do_find_free_block(int argc, char *argv[]) |
| 872 | { |
| 873 | blk_t free_blk, goal; |
| 874 | errcode_t retval; |
| 875 | char *tmp; |
| 876 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 877 | if ((argc > 2) || (argc==2 && *argv[1] == '?')) { |
| 878 | com_err(argv[0], 0, "Usage: find_free_block [goal]"); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 879 | return; |
| 880 | } |
| 881 | if (check_fs_open(argv[0])) |
| 882 | return; |
| 883 | |
| 884 | if (argc > 1) { |
| 885 | goal = strtol(argv[1], &tmp, 0); |
| 886 | if (*tmp) { |
| 887 | com_err(argv[0], 0, "Bad goal - %s", argv[1]); |
| 888 | return; |
| 889 | } |
| 890 | } |
| 891 | else |
| 892 | goal = fs->super->s_first_data_block; |
| 893 | |
| 894 | retval = ext2fs_new_block(fs, goal, 0, &free_blk); |
| 895 | if (retval) |
| 896 | com_err("ext2fs_new_block", retval, ""); |
| 897 | else |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 898 | printf("Free block found: %d\n", free_blk); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 899 | |
| 900 | } |
| 901 | |
| 902 | void do_find_free_inode(int argc, char *argv[]) |
| 903 | { |
| 904 | ino_t free_inode, dir; |
| 905 | int mode; |
| 906 | int retval; |
| 907 | char *tmp; |
| 908 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 909 | if (argc > 3 || (argc>1 && *argv[1] == '?')) { |
| 910 | com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]"); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 911 | return; |
| 912 | } |
| 913 | if (check_fs_open(argv[0])) |
| 914 | return; |
| 915 | |
| 916 | if (argc > 1) { |
| 917 | dir = strtol(argv[1], &tmp, 0); |
| 918 | if (*tmp) { |
| 919 | com_err(argv[0], 0, "Bad dir - %s", argv[1]); |
| 920 | return; |
| 921 | } |
| 922 | } |
| 923 | else |
| 924 | dir = root; |
| 925 | if (argc > 2) { |
| 926 | mode = strtol(argv[2], &tmp, 0); |
| 927 | if (*tmp) { |
| 928 | com_err(argv[0], 0, "Bad mode - %s", argv[2]); |
| 929 | return; |
| 930 | } |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 931 | } else |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 932 | mode = 010755; |
| 933 | |
| 934 | retval = ext2fs_new_inode(fs, dir, mode, 0, &free_inode); |
| 935 | if (retval) |
| 936 | com_err("ext2fs_new_inode", retval, ""); |
| 937 | else |
| 938 | printf("Free inode found: %ld\n", free_inode); |
| 939 | } |
| 940 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 941 | struct copy_file_struct { |
| 942 | unsigned long size; |
| 943 | int done, fd, blocks; |
| 944 | errcode_t err; |
| 945 | }; |
| 946 | |
| 947 | static int copy_file_proc(ext2_filsys fs, |
| 948 | blk_t *blocknr, |
| 949 | int blockcnt, |
| 950 | void *private) |
| 951 | { |
| 952 | struct copy_file_struct *cs = (struct copy_file_struct *) private; |
| 953 | blk_t new_blk; |
| 954 | static blk_t last_blk = 0; |
| 955 | char *block; |
| 956 | errcode_t retval; |
| 957 | int group; |
| 958 | int nr; |
| 959 | |
| 960 | if (*blocknr) { |
| 961 | new_blk = *blocknr; |
| 962 | } else { |
| 963 | retval = ext2fs_new_block(fs, last_blk, 0, &new_blk); |
| 964 | if (retval) { |
| 965 | cs->err = retval; |
| 966 | return BLOCK_ABORT; |
| 967 | } |
| 968 | } |
| 969 | last_blk = new_blk; |
| 970 | block = malloc(fs->blocksize); |
| 971 | if (!block) { |
| 972 | cs->err = ENOMEM; |
| 973 | return BLOCK_ABORT; |
| 974 | } |
| 975 | if (blockcnt >= 0) { |
| 976 | nr = read(cs->fd, block, fs->blocksize); |
| 977 | } else { |
| 978 | nr = fs->blocksize; |
| 979 | memset(block, 0, nr); |
| 980 | } |
| 981 | if (nr == 0) { |
| 982 | cs->done = 1; |
| 983 | return BLOCK_ABORT; |
| 984 | } |
| 985 | if (nr < 0) { |
| 986 | cs->err = nr; |
| 987 | return BLOCK_ABORT; |
| 988 | } |
| 989 | retval = io_channel_write_blk(fs->io, new_blk, 1, block); |
| 990 | if (retval) { |
| 991 | cs->err = retval; |
| 992 | return BLOCK_ABORT; |
| 993 | } |
| 994 | free(block); |
| 995 | if (blockcnt >= 0) |
| 996 | cs->size += nr; |
| 997 | cs->blocks += fs->blocksize / 512; |
| 998 | printf("%ld(%d) ", cs->size, blockcnt); |
| 999 | fflush(stdout); |
| 1000 | if (nr < fs->blocksize) { |
| 1001 | cs->done = 1; |
| 1002 | printf("\n"); |
| 1003 | } |
| 1004 | *blocknr = new_blk; |
| 1005 | ext2fs_mark_block_bitmap(fs->block_map, new_blk); |
| 1006 | ext2fs_mark_bb_dirty(fs); |
| 1007 | group = ext2fs_group_of_blk(fs, new_blk); |
| 1008 | fs->group_desc[group].bg_free_blocks_count--; |
| 1009 | fs->super->s_free_blocks_count--; |
| 1010 | ext2fs_mark_super_dirty(fs); |
| 1011 | if (cs->done) |
| 1012 | return (BLOCK_CHANGED | BLOCK_ABORT); |
| 1013 | else |
| 1014 | return BLOCK_CHANGED; |
| 1015 | } |
| 1016 | |
| 1017 | static errcode_t copy_file(int fd, ino_t newfile) |
| 1018 | { |
| 1019 | errcode_t retval; |
| 1020 | struct copy_file_struct cs; |
| 1021 | struct ext2_inode inode; |
| 1022 | |
| 1023 | cs.fd = fd; |
| 1024 | cs.done = 0; |
| 1025 | cs.err = 0; |
| 1026 | cs.size = 0; |
| 1027 | cs.blocks = 0; |
| 1028 | |
| 1029 | retval = ext2fs_block_iterate(fs, newfile, BLOCK_FLAG_APPEND, |
| 1030 | 0, copy_file_proc, &cs); |
| 1031 | |
| 1032 | if (cs.err) |
| 1033 | return cs.err; |
| 1034 | if (!cs.done) |
| 1035 | return EXT2_ET_EXPAND_DIR_ERR; |
| 1036 | |
| 1037 | /* |
| 1038 | * Update the size and block count fields in the inode. |
| 1039 | */ |
| 1040 | retval = ext2fs_read_inode(fs, newfile, &inode); |
| 1041 | if (retval) |
| 1042 | return retval; |
| 1043 | |
| 1044 | inode.i_blocks += cs.blocks; |
| 1045 | |
| 1046 | retval = ext2fs_write_inode(fs, newfile, &inode); |
| 1047 | if (retval) |
| 1048 | return retval; |
| 1049 | |
| 1050 | return 0; |
| 1051 | } |
| 1052 | |
| 1053 | void do_write(int argc, char *argv[]) |
| 1054 | { |
| 1055 | int fd; |
| 1056 | struct stat statbuf; |
| 1057 | ino_t newfile; |
| 1058 | errcode_t retval; |
| 1059 | struct ext2_inode inode; |
| 1060 | |
| 1061 | if (check_fs_open(argv[0])) |
| 1062 | return; |
| 1063 | if (argc != 3) { |
| 1064 | com_err(argv[0], 0, "Usage: write <nativefile> <newfile>"); |
| 1065 | return; |
| 1066 | } |
| 1067 | if (!(fs->flags & EXT2_FLAG_RW)) { |
| 1068 | com_err(argv[0], 0, "read-only filesystem"); |
| 1069 | return; |
| 1070 | } |
| 1071 | fd = open(argv[1], O_RDONLY); |
| 1072 | if (fd < 0) { |
| 1073 | com_err(argv[1], fd, ""); |
| 1074 | return; |
| 1075 | } |
| 1076 | if (fstat(fd, &statbuf) < 0) { |
| 1077 | com_err(argv[1], errno, ""); |
| 1078 | close(fd); |
| 1079 | return; |
| 1080 | } |
| 1081 | |
| 1082 | retval = ext2fs_new_inode(fs, cwd, 010755, 0, &newfile); |
| 1083 | if (retval) { |
| 1084 | com_err(argv[0], retval, ""); |
| 1085 | close(fd); |
| 1086 | return; |
| 1087 | } |
| 1088 | printf("Allocated inode: %ld\n", newfile); |
| 1089 | retval = ext2fs_link(fs, cwd, argv[2], newfile, 0); |
| 1090 | if (retval) { |
| 1091 | com_err(argv[2], retval, ""); |
| 1092 | close(fd); |
| 1093 | return; |
| 1094 | } |
| 1095 | if (ext2fs_test_inode_bitmap(fs->inode_map,newfile)) |
| 1096 | com_err(argv[0], 0, "Warning: inode already set"); |
| 1097 | ext2fs_mark_inode_bitmap(fs->inode_map,newfile); |
| 1098 | ext2fs_mark_ib_dirty(fs); |
| 1099 | memset(&inode, 0, sizeof(inode)); |
| 1100 | inode.i_mode = statbuf.st_mode; |
| 1101 | inode.i_atime = inode.i_ctime = inode.i_mtime = time(NULL); |
| 1102 | inode.i_links_count = 1; |
| 1103 | inode.i_size = statbuf.st_size; |
| 1104 | ext2fs_write_inode(fs, newfile, &inode); |
| 1105 | retval = ext2fs_write_inode(fs, newfile, &inode); |
| 1106 | if (retval) { |
| 1107 | com_err(argv[0], retval, "while trying to write inode %d", inode); |
| 1108 | close(fd); |
| 1109 | return; |
| 1110 | } |
| 1111 | if (LINUX_S_ISREG(inode.i_mode)) { |
| 1112 | retval = copy_file(fd, newfile); |
| 1113 | if (retval) |
| 1114 | com_err("copy_file", retval, ""); |
| 1115 | } |
| 1116 | close(fd); |
| 1117 | } |
| 1118 | |
| 1119 | void do_mknod(int argc, char *argv[]) |
| 1120 | { |
| 1121 | unsigned long mode, major, minor, nr; |
| 1122 | ino_t newfile; |
| 1123 | errcode_t retval; |
| 1124 | struct ext2_inode inode; |
| 1125 | |
| 1126 | if (check_fs_open(argv[0])) |
| 1127 | return; |
| 1128 | if (argc < 3 || argv[2][1]) { |
| 1129 | com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]"); |
| 1130 | return; |
| 1131 | } |
| 1132 | mode = minor = major = 0; |
| 1133 | switch (argv[2][0]) { |
| 1134 | case 'p': |
| 1135 | mode = LINUX_S_IFIFO; |
| 1136 | nr = 3; |
| 1137 | break; |
| 1138 | case 'c': |
| 1139 | mode = LINUX_S_IFCHR; |
| 1140 | nr = 5; |
| 1141 | break; |
| 1142 | case 'b': |
| 1143 | mode = LINUX_S_IFBLK; |
| 1144 | nr = 5; |
| 1145 | break; |
| 1146 | default: |
| 1147 | nr = 0; |
| 1148 | } |
| 1149 | if (nr == 5) { |
| 1150 | major = strtoul(argv[3], argv+3, 0); |
| 1151 | minor = strtoul(argv[4], argv+4, 0); |
| 1152 | if (major > 255 || minor > 255 || argv[3][0] || argv[4][0]) |
| 1153 | nr = 0; |
| 1154 | } |
| 1155 | if (argc != nr) { |
| 1156 | com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]"); |
| 1157 | return; |
| 1158 | } |
| 1159 | if (!(fs->flags & EXT2_FLAG_RW)) { |
| 1160 | com_err(argv[0], 0, "read-only filesystem"); |
| 1161 | return; |
| 1162 | } |
| 1163 | retval = ext2fs_new_inode(fs, cwd, 010755, 0, &newfile); |
| 1164 | if (retval) { |
| 1165 | com_err(argv[0], retval, ""); |
| 1166 | return; |
| 1167 | } |
| 1168 | printf("Allocated inode: %ld\n", newfile); |
| 1169 | retval = ext2fs_link(fs, cwd, argv[1], newfile, 0); |
| 1170 | if (retval) { |
| 1171 | if (retval == EXT2_ET_DIR_NO_SPACE) { |
| 1172 | retval = ext2fs_expand_dir(fs, cwd); |
| 1173 | if (!retval) |
| 1174 | retval = ext2fs_link(fs, cwd, argv[1], newfile, 0); |
| 1175 | } |
| 1176 | if (retval) { |
| 1177 | com_err(argv[1], retval, ""); |
| 1178 | return; |
| 1179 | } |
| 1180 | } |
| 1181 | if (ext2fs_test_inode_bitmap(fs->inode_map,newfile)) |
| 1182 | com_err(argv[0], 0, "Warning: inode already set"); |
| 1183 | ext2fs_mark_inode_bitmap(fs->inode_map,newfile); |
| 1184 | ext2fs_mark_ib_dirty(fs); |
| 1185 | memset(&inode, 0, sizeof(inode)); |
| 1186 | inode.i_mode = mode; |
| 1187 | inode.i_atime = inode.i_ctime = inode.i_mtime = time(NULL); |
| 1188 | inode.i_block[0] = major*256+minor; |
| 1189 | inode.i_links_count = 1; |
| 1190 | ext2fs_write_inode(fs, newfile, &inode); |
| 1191 | retval = ext2fs_write_inode(fs, newfile, &inode); |
| 1192 | if (retval) { |
| 1193 | com_err(argv[0], retval, "while trying to write inode %d", inode); |
| 1194 | return; |
| 1195 | } |
| 1196 | } |
| 1197 | |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 1198 | void do_mkdir(int argc, char *argv[]) |
| 1199 | { |
| 1200 | char *cp; |
| 1201 | ino_t parent; |
| 1202 | char *name; |
| 1203 | errcode_t retval; |
| 1204 | |
| 1205 | if (check_fs_open(argv[0])) |
| 1206 | return; |
| 1207 | |
| 1208 | if (argc != 2) { |
| 1209 | com_err(argv[0], 0, "Usage: mkdir <file>"); |
| 1210 | return; |
| 1211 | } |
| 1212 | |
| 1213 | cp = strrchr(argv[1], '/'); |
| 1214 | if (cp) { |
| 1215 | *cp = 0; |
| 1216 | parent = string_to_inode(argv[1]); |
| 1217 | if (!parent) { |
| 1218 | com_err(argv[1], ENOENT, ""); |
| 1219 | return; |
| 1220 | } |
| 1221 | name = cp+1; |
| 1222 | } else { |
| 1223 | parent = cwd; |
| 1224 | name = argv[1]; |
| 1225 | } |
| 1226 | |
| 1227 | |
| 1228 | retval = ext2fs_mkdir(fs, parent, 0, name); |
| 1229 | if (retval) { |
| 1230 | com_err("ext2fs_mkdir", retval, ""); |
| 1231 | return; |
| 1232 | } |
| 1233 | |
| 1234 | } |
| 1235 | |
| 1236 | void do_rmdir(int argc, char *argv[]) |
| 1237 | { |
| 1238 | printf("Unimplemented\n"); |
| 1239 | } |
| 1240 | |
| 1241 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 1242 | static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr, |
| 1243 | int blockcnt, void *private) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 1244 | { |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 1245 | printf("%d ", *blocknr); |
Theodore Ts'o | f3db356 | 1997-04-26 13:34:30 +0000 | [diff] [blame] | 1246 | ext2fs_unmark_block_bitmap(fs->block_map,*blocknr); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 1247 | return 0; |
| 1248 | } |
| 1249 | |
| 1250 | void kill_file_by_inode(ino_t inode) |
| 1251 | { |
| 1252 | struct ext2_inode inode_buf; |
| 1253 | |
| 1254 | ext2fs_read_inode(fs, inode, &inode_buf); |
| 1255 | inode_buf.i_dtime = time(NULL); |
| 1256 | ext2fs_write_inode(fs, inode, &inode_buf); |
| 1257 | |
| 1258 | printf("Kill file by inode %ld\n", inode); |
| 1259 | ext2fs_block_iterate(fs,inode,0,NULL,release_blocks_proc,NULL); |
Theodore Ts'o | f3db356 | 1997-04-26 13:34:30 +0000 | [diff] [blame] | 1260 | ext2fs_unmark_inode_bitmap(fs->inode_map,inode); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 1261 | |
| 1262 | ext2fs_mark_bb_dirty(fs); |
| 1263 | ext2fs_mark_ib_dirty(fs); |
| 1264 | } |
| 1265 | |
| 1266 | |
| 1267 | void do_kill_file(int argc, char *argv[]) |
| 1268 | { |
| 1269 | ino_t inode_num; |
| 1270 | |
| 1271 | if (argc != 2) { |
| 1272 | com_err(argv[0], 0, "Usage: kill_file <file>"); |
| 1273 | return; |
| 1274 | } |
| 1275 | if (check_fs_open(argv[0])) |
| 1276 | return; |
| 1277 | |
| 1278 | inode_num = string_to_inode(argv[1]); |
| 1279 | if (!inode_num) { |
| 1280 | com_err(argv[0], 0, "Cannot find file"); |
| 1281 | return; |
| 1282 | } |
| 1283 | kill_file_by_inode(inode_num); |
| 1284 | } |
| 1285 | |
| 1286 | void do_rm(int argc, char *argv[]) |
| 1287 | { |
| 1288 | int retval; |
| 1289 | ino_t inode_num; |
| 1290 | struct ext2_inode inode; |
| 1291 | |
| 1292 | if (argc != 2) { |
| 1293 | com_err(argv[0], 0, "Usage: rm <filename>"); |
| 1294 | return; |
| 1295 | } |
| 1296 | if (check_fs_open(argv[0])) |
| 1297 | return; |
| 1298 | |
| 1299 | retval = ext2fs_namei(fs, root, cwd, argv[1], &inode_num); |
| 1300 | if (retval) { |
| 1301 | com_err(argv[0], 0, "Cannot find file"); |
| 1302 | return; |
| 1303 | } |
| 1304 | |
| 1305 | retval = ext2fs_read_inode(fs,inode_num,&inode); |
| 1306 | if (retval) { |
| 1307 | com_err(argv[0], retval, "while reading file's inode"); |
| 1308 | return; |
| 1309 | } |
| 1310 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 1311 | if (LINUX_S_ISDIR(inode.i_mode)) { |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 1312 | com_err(argv[0], 0, "file is a directory"); |
| 1313 | return; |
| 1314 | } |
| 1315 | |
| 1316 | --inode.i_links_count; |
| 1317 | retval = ext2fs_write_inode(fs,inode_num,&inode); |
| 1318 | if (retval) { |
| 1319 | com_err(argv[0], retval, "while writing inode"); |
| 1320 | return; |
| 1321 | } |
| 1322 | |
| 1323 | unlink_file_by_name(argv[1]); |
| 1324 | if (inode.i_links_count == 0) |
| 1325 | kill_file_by_inode(inode_num); |
| 1326 | } |
| 1327 | |
| 1328 | void do_show_debugfs_params(int argc, char *argv[]) |
| 1329 | { |
| 1330 | FILE *out = stdout; |
| 1331 | |
| 1332 | fprintf(out, "Open mode: read-%s\n", |
| 1333 | fs->flags & EXT2_FLAG_RW ? "write" : "only"); |
| 1334 | fprintf(out, "Filesystem in use: %s\n", |
| 1335 | fs ? fs->device_name : "--none--"); |
| 1336 | } |
| 1337 | |
| 1338 | void do_expand_dir(int argc, char *argv[]) |
| 1339 | { |
| 1340 | ino_t inode; |
| 1341 | int retval; |
| 1342 | |
| 1343 | if (argc != 2) { |
| 1344 | com_err(argv[0], 0, "Usage: expand_dir <file>"); |
| 1345 | return; |
| 1346 | } |
| 1347 | if (check_fs_open(argv[0])) |
| 1348 | return; |
| 1349 | inode = string_to_inode(argv[1]); |
| 1350 | if (!inode) |
| 1351 | return; |
| 1352 | |
| 1353 | retval = ext2fs_expand_dir(fs, inode); |
| 1354 | if (retval) |
| 1355 | com_err("ext2fs_expand_dir", retval, ""); |
| 1356 | return; |
| 1357 | } |
| 1358 | |
| 1359 | void main(int argc, char **argv) |
| 1360 | { |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame^] | 1361 | int retval; |
| 1362 | int sci_idx; |
| 1363 | const char *usage = "Usage: debugfs [[-w] device]"; |
| 1364 | char c; |
| 1365 | int open_flags = 0; |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 1366 | |
| 1367 | initialize_ext2_error_table(); |
| 1368 | |
| 1369 | while ((c = getopt (argc, argv, "w")) != EOF) { |
| 1370 | switch (c) { |
| 1371 | case 'w': |
| 1372 | open_flags = EXT2_FLAG_RW; |
| 1373 | break; |
| 1374 | default: |
| 1375 | com_err(argv[0], 0, usage); |
| 1376 | return; |
| 1377 | } |
| 1378 | } |
| 1379 | if (optind < argc) |
| 1380 | open_filesystem(argv[optind], open_flags); |
| 1381 | |
| 1382 | sci_idx = ss_create_invocation("debugfs", "0.0", (char *) NULL, |
| 1383 | &debug_cmds, &retval); |
| 1384 | if (retval) { |
| 1385 | ss_perror(sci_idx, retval, "creating invocation"); |
| 1386 | exit(1); |
| 1387 | } |
| 1388 | |
| 1389 | (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval); |
| 1390 | if (retval) { |
| 1391 | ss_perror(sci_idx, retval, "adding standard requests"); |
| 1392 | exit (1); |
| 1393 | } |
| 1394 | |
| 1395 | ss_listen(sci_idx); |
| 1396 | |
| 1397 | if (fs) |
| 1398 | close_filesystem(); |
| 1399 | |
| 1400 | exit(0); |
| 1401 | } |
| 1402 | |