Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 1 | /* |
| 2 | * extent_inode.c --- direct extent tree manipulation |
| 3 | * |
| 4 | * Copyright (C) 2012 Theodore Ts'o. This file may be redistributed |
| 5 | * under the terms of the GNU Public License. |
| 6 | */ |
| 7 | |
| 8 | #include "config.h" |
| 9 | #include <stdio.h> |
| 10 | #include <unistd.h> |
| 11 | #include <stdlib.h> |
| 12 | #include <ctype.h> |
| 13 | #include <string.h> |
| 14 | #include <time.h> |
| 15 | #ifdef HAVE_ERRNO_H |
| 16 | #include <errno.h> |
| 17 | #endif |
| 18 | #include <sys/types.h> |
| 19 | #ifdef HAVE_GETOPT_H |
| 20 | #include <getopt.h> |
| 21 | #else |
| 22 | extern int optind; |
| 23 | extern char *optarg; |
| 24 | #endif |
| 25 | |
| 26 | #include "debugfs.h" |
| 27 | |
Theodore Ts'o | f404167 | 2013-12-16 18:56:36 -0500 | [diff] [blame^] | 28 | static ext2_ino_t current_ino; |
| 29 | static ext2_extent_handle_t current_handle; |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 30 | |
| 31 | static void dbg_print_extent(char *desc, struct ext2fs_extent *extent) |
| 32 | { |
| 33 | if (desc) |
| 34 | printf("%s: ", desc); |
| 35 | printf("extent: lblk %llu--%llu, len %u, pblk %llu, flags: ", |
| 36 | extent->e_lblk, extent->e_lblk + extent->e_len - 1, |
| 37 | extent->e_len, extent->e_pblk); |
| 38 | if (extent->e_flags & EXT2_EXTENT_FLAGS_LEAF) |
| 39 | fputs("LEAF ", stdout); |
| 40 | if (extent->e_flags & EXT2_EXTENT_FLAGS_UNINIT) |
| 41 | fputs("UNINIT ", stdout); |
| 42 | if (extent->e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT) |
| 43 | fputs("2ND_VISIT ", stdout); |
| 44 | if (!extent->e_flags) |
| 45 | fputs("(none)", stdout); |
| 46 | fputc('\n', stdout); |
| 47 | |
| 48 | } |
| 49 | |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 50 | static int common_extent_args_process(int argc, char *argv[], int min_argc, |
| 51 | int max_argc, const char *cmd, |
| 52 | const char *usage, int flags) |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 53 | { |
| 54 | if (common_args_process(argc, argv, min_argc, max_argc, cmd, |
| 55 | usage, flags)) |
| 56 | return 1; |
| 57 | |
| 58 | if (!current_handle) { |
| 59 | com_err(cmd, 0, "Extent handle not open"); |
| 60 | return 1; |
| 61 | } |
| 62 | return 0; |
| 63 | } |
| 64 | |
| 65 | static char *orig_prompt, *extent_prompt; |
| 66 | |
| 67 | void do_extent_open(int argc, char *argv[]) |
| 68 | { |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 69 | ext2_ino_t inode; |
Theodore Ts'o | e350773 | 2013-01-01 13:28:27 -0500 | [diff] [blame] | 70 | int ret; |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 71 | errcode_t retval; |
| 72 | char *cp; |
| 73 | |
| 74 | if (check_fs_open(argv[0])) |
| 75 | return; |
| 76 | |
| 77 | if (argc == 1) { |
| 78 | if (current_ino) |
| 79 | printf("Current inode is %d\n", current_ino); |
| 80 | else |
| 81 | printf("No current inode\n"); |
| 82 | return; |
| 83 | } |
| 84 | |
| 85 | if (common_inode_args_process(argc, argv, &inode, 0)) |
| 86 | return; |
| 87 | |
| 88 | current_ino = 0; |
| 89 | |
| 90 | retval = ext2fs_extent_open(current_fs, inode, ¤t_handle); |
| 91 | if (retval) { |
| 92 | com_err(argv[1], retval, "while opening extent handle"); |
| 93 | return; |
| 94 | } |
| 95 | |
| 96 | current_ino = inode; |
| 97 | |
| 98 | orig_prompt = ss_get_prompt(sci_idx); |
| 99 | extent_prompt = malloc(strlen(orig_prompt) + 32); |
| 100 | strcpy(extent_prompt, orig_prompt); |
| 101 | cp = strchr(extent_prompt, ':'); |
| 102 | if (cp) |
| 103 | *cp = 0; |
| 104 | sprintf(extent_prompt + strlen(extent_prompt), " (extent ino %d): ", |
| 105 | current_ino); |
| 106 | ss_add_request_table(sci_idx, &extent_cmds, 1, &ret); |
| 107 | ss_set_prompt(sci_idx, extent_prompt); |
| 108 | return; |
| 109 | } |
| 110 | |
| 111 | void do_extent_close(int argc, char *argv[]) |
| 112 | { |
| 113 | int ret; |
| 114 | |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 115 | if (common_args_process(argc, argv, 1, 1, |
| 116 | "extent_close", "", 0)) |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 117 | return; |
| 118 | |
| 119 | if (!current_handle) { |
| 120 | com_err(argv[0], 0, "Extent handle not open"); |
| 121 | return; |
| 122 | } |
| 123 | |
| 124 | ext2fs_extent_free(current_handle); |
| 125 | current_handle = NULL; |
| 126 | current_ino = 0; |
| 127 | ss_delete_request_table(sci_idx, &extent_cmds, &ret); |
| 128 | ss_set_prompt(sci_idx, orig_prompt); |
| 129 | free(extent_prompt); |
| 130 | extent_prompt = NULL; |
| 131 | } |
| 132 | |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 133 | static void generic_goto_node(const char *my_name, int argc, |
| 134 | char **argv, int op) |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 135 | { |
| 136 | struct ext2fs_extent extent; |
| 137 | errcode_t retval; |
| 138 | |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 139 | if (my_name && common_args_process(argc, argv, 1, 1, |
| 140 | my_name, "", 0)) |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 141 | return; |
| 142 | |
| 143 | if (!current_handle) { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 144 | com_err(argv[0], 0, "Extent handle not open"); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 145 | return; |
| 146 | } |
| 147 | |
| 148 | retval = ext2fs_extent_get(current_handle, op, &extent); |
| 149 | if (retval) { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 150 | com_err(argv[0], retval, 0); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 151 | return; |
| 152 | } |
| 153 | dbg_print_extent(0, &extent); |
| 154 | } |
| 155 | |
| 156 | void do_current_node(int argc, char *argv[]) |
| 157 | { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 158 | generic_goto_node("current_node", argc, argv, EXT2_EXTENT_CURRENT); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 159 | } |
| 160 | |
| 161 | void do_root_node(int argc, char *argv[]) |
| 162 | { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 163 | generic_goto_node("root_node", argc, argv, EXT2_EXTENT_ROOT); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 164 | } |
| 165 | |
| 166 | void do_last_leaf(int argc, char *argv[]) |
| 167 | { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 168 | generic_goto_node("last_leaf", argc, argv, EXT2_EXTENT_LAST_LEAF); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 169 | } |
| 170 | |
| 171 | void do_first_sib(int argc, char *argv[]) |
| 172 | { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 173 | generic_goto_node("first_sib", argc, argv, EXT2_EXTENT_FIRST_SIB); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 174 | } |
| 175 | |
| 176 | void do_last_sib(int argc, char *argv[]) |
| 177 | { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 178 | generic_goto_node("next_sib", argc, argv, EXT2_EXTENT_LAST_SIB); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 179 | } |
| 180 | |
| 181 | void do_next_sib(int argc, char *argv[]) |
| 182 | { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 183 | generic_goto_node("next_sib", argc, argv, EXT2_EXTENT_NEXT_SIB); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 184 | } |
| 185 | |
| 186 | void do_prev_sib(int argc, char *argv[]) |
| 187 | { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 188 | generic_goto_node("prev_sib", argc, argv, EXT2_EXTENT_PREV_SIB); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 189 | } |
| 190 | |
| 191 | void do_next_leaf(int argc, char *argv[]) |
| 192 | { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 193 | generic_goto_node("next_leaf", argc, argv, EXT2_EXTENT_NEXT_LEAF); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 194 | } |
| 195 | |
| 196 | void do_prev_leaf(int argc, char *argv[]) |
| 197 | { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 198 | generic_goto_node("prev_leaf", argc, argv, EXT2_EXTENT_PREV_LEAF); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 199 | } |
| 200 | |
| 201 | void do_next(int argc, char *argv[]) |
| 202 | { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 203 | generic_goto_node("next", argc, argv, EXT2_EXTENT_NEXT); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 204 | } |
| 205 | |
| 206 | void do_prev(int argc, char *argv[]) |
| 207 | { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 208 | generic_goto_node("prev", argc, argv, EXT2_EXTENT_PREV); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 209 | } |
| 210 | |
| 211 | void do_up(int argc, char *argv[]) |
| 212 | { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 213 | generic_goto_node("up", argc, argv, EXT2_EXTENT_UP); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 214 | } |
| 215 | |
| 216 | void do_down(int argc, char *argv[]) |
| 217 | { |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 218 | generic_goto_node("down", argc, argv, EXT2_EXTENT_DOWN); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 219 | } |
| 220 | |
| 221 | void do_delete_node(int argc, char *argv[]) |
| 222 | { |
| 223 | struct ext2fs_extent extent; |
| 224 | errcode_t retval; |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 225 | |
| 226 | if (common_extent_args_process(argc, argv, 1, 1, "delete_node", |
| 227 | "", CHECK_FS_RW | CHECK_FS_BITMAPS)) |
| 228 | return; |
| 229 | |
| 230 | retval = ext2fs_extent_delete(current_handle, 0); |
| 231 | if (retval) { |
| 232 | com_err(argv[0], retval, 0); |
| 233 | return; |
| 234 | } |
| 235 | |
| 236 | retval = ext2fs_extent_get(current_handle, EXT2_EXTENT_CURRENT, |
| 237 | &extent); |
| 238 | if (retval) |
| 239 | return; |
| 240 | dbg_print_extent(0, &extent); |
| 241 | } |
| 242 | |
| 243 | void do_replace_node(int argc, char *argv[]) |
| 244 | { |
| 245 | const char *usage = "[--uninit] <lblk> <len> <pblk>"; |
| 246 | errcode_t retval; |
| 247 | struct ext2fs_extent extent; |
| 248 | int err; |
| 249 | |
| 250 | if (common_extent_args_process(argc, argv, 3, 5, "replace_node", |
| 251 | usage, CHECK_FS_RW | CHECK_FS_BITMAPS)) |
| 252 | return; |
| 253 | |
| 254 | extent.e_flags = 0; |
| 255 | |
| 256 | if (!strcmp(argv[1], "--uninit")) { |
| 257 | argc--; |
| 258 | argv++; |
| 259 | extent.e_flags |= EXT2_EXTENT_FLAGS_UNINIT; |
| 260 | } |
| 261 | |
| 262 | if (argc != 4) { |
| 263 | fprintf(stderr, "Usage: %s %s\n", argv[0], usage); |
| 264 | return; |
| 265 | } |
| 266 | |
Darrick J. Wong | fe56188 | 2013-12-12 12:49:14 -0500 | [diff] [blame] | 267 | err = strtoblk(argv[0], argv[1], &extent.e_lblk); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 268 | if (err) |
| 269 | return; |
| 270 | |
| 271 | extent.e_len = parse_ulong(argv[2], argv[0], "logical block", &err); |
| 272 | if (err) |
| 273 | return; |
| 274 | |
Darrick J. Wong | fe56188 | 2013-12-12 12:49:14 -0500 | [diff] [blame] | 275 | err = strtoblk(argv[0], argv[3], &extent.e_pblk); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 276 | if (err) |
| 277 | return; |
| 278 | |
| 279 | retval = ext2fs_extent_replace(current_handle, 0, &extent); |
| 280 | if (retval) { |
| 281 | com_err(argv[0], retval, 0); |
| 282 | return; |
| 283 | } |
Theodore Ts'o | 16b1fcf | 2013-03-13 14:19:16 -0400 | [diff] [blame] | 284 | generic_goto_node(NULL, argc, argv, EXT2_EXTENT_CURRENT); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 285 | } |
| 286 | |
| 287 | void do_split_node(int argc, char *argv[]) |
| 288 | { |
| 289 | errcode_t retval; |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 290 | |
| 291 | if (common_extent_args_process(argc, argv, 1, 1, "split_node", |
| 292 | "", CHECK_FS_RW | CHECK_FS_BITMAPS)) |
| 293 | return; |
| 294 | |
| 295 | retval = ext2fs_extent_node_split(current_handle); |
| 296 | if (retval) { |
| 297 | com_err(argv[0], retval, 0); |
| 298 | return; |
| 299 | } |
Theodore Ts'o | 16b1fcf | 2013-03-13 14:19:16 -0400 | [diff] [blame] | 300 | generic_goto_node(NULL, argc, argv, EXT2_EXTENT_CURRENT); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 301 | } |
| 302 | |
| 303 | void do_insert_node(int argc, char *argv[]) |
| 304 | { |
| 305 | const char *usage = "[--after] [--uninit] <lblk> <len> <pblk>"; |
| 306 | errcode_t retval; |
| 307 | struct ext2fs_extent extent; |
| 308 | char *cmd; |
| 309 | int err; |
| 310 | int flags = 0; |
| 311 | |
| 312 | if (common_extent_args_process(argc, argv, 3, 6, "insert_node", |
| 313 | usage, CHECK_FS_RW | CHECK_FS_BITMAPS)) |
| 314 | return; |
| 315 | |
| 316 | cmd = argv[0]; |
| 317 | |
| 318 | extent.e_flags = 0; |
| 319 | |
| 320 | while (argc > 2) { |
| 321 | if (!strcmp(argv[1], "--after")) { |
| 322 | argc--; |
| 323 | argv++; |
| 324 | flags |= EXT2_EXTENT_INSERT_AFTER; |
| 325 | continue; |
| 326 | } |
| 327 | if (!strcmp(argv[1], "--uninit")) { |
| 328 | argc--; |
| 329 | argv++; |
| 330 | extent.e_flags |= EXT2_EXTENT_FLAGS_UNINIT; |
| 331 | continue; |
| 332 | } |
| 333 | break; |
| 334 | } |
| 335 | |
| 336 | if (argc != 4) { |
| 337 | fprintf(stderr, "usage: %s %s\n", cmd, usage); |
| 338 | return; |
| 339 | } |
| 340 | |
Darrick J. Wong | fe56188 | 2013-12-12 12:49:14 -0500 | [diff] [blame] | 341 | err = strtoblk(cmd, argv[1], &extent.e_lblk); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 342 | if (err) |
| 343 | return; |
| 344 | |
| 345 | extent.e_len = parse_ulong(argv[2], cmd, |
| 346 | "length", &err); |
| 347 | if (err) |
| 348 | return; |
| 349 | |
Darrick J. Wong | fe56188 | 2013-12-12 12:49:14 -0500 | [diff] [blame] | 350 | err = strtoblk(cmd, argv[3], &extent.e_pblk); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 351 | if (err) |
| 352 | return; |
| 353 | |
| 354 | retval = ext2fs_extent_insert(current_handle, flags, &extent); |
| 355 | if (retval) { |
| 356 | com_err(cmd, retval, 0); |
| 357 | return; |
| 358 | } |
Theodore Ts'o | 16b1fcf | 2013-03-13 14:19:16 -0400 | [diff] [blame] | 359 | generic_goto_node(NULL, argc, argv, EXT2_EXTENT_CURRENT); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 360 | } |
| 361 | |
| 362 | void do_set_bmap(int argc, char **argv) |
| 363 | { |
| 364 | const char *usage = "[--uninit] <lblk> <pblk>"; |
| 365 | struct ext2fs_extent extent; |
| 366 | errcode_t retval; |
Darrick J. Wong | fe56188 | 2013-12-12 12:49:14 -0500 | [diff] [blame] | 367 | blk64_t logical; |
| 368 | blk64_t physical; |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 369 | char *cmd = argv[0]; |
| 370 | int flags = 0; |
| 371 | int err; |
| 372 | |
| 373 | if (common_extent_args_process(argc, argv, 3, 5, "set_bmap", |
| 374 | usage, CHECK_FS_RW | CHECK_FS_BITMAPS)) |
| 375 | return; |
| 376 | |
| 377 | if (argc > 2 && !strcmp(argv[1], "--uninit")) { |
| 378 | argc--; |
| 379 | argv++; |
| 380 | flags |= EXT2_EXTENT_SET_BMAP_UNINIT; |
| 381 | } |
| 382 | |
| 383 | if (argc != 3) { |
| 384 | fprintf(stderr, "Usage: %s %s\n", cmd, usage); |
| 385 | return; |
| 386 | } |
| 387 | |
Darrick J. Wong | fe56188 | 2013-12-12 12:49:14 -0500 | [diff] [blame] | 388 | err = strtoblk(cmd, argv[1], &logical); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 389 | if (err) |
| 390 | return; |
| 391 | |
Darrick J. Wong | fe56188 | 2013-12-12 12:49:14 -0500 | [diff] [blame] | 392 | err = strtoblk(cmd, argv[2], &physical); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 393 | if (err) |
| 394 | return; |
| 395 | |
| 396 | retval = ext2fs_extent_set_bmap(current_handle, logical, |
Darrick J. Wong | fe56188 | 2013-12-12 12:49:14 -0500 | [diff] [blame] | 397 | physical, flags); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 398 | if (retval) { |
| 399 | com_err(cmd, retval, 0); |
| 400 | return; |
| 401 | } |
| 402 | |
| 403 | retval = ext2fs_extent_get(current_handle, EXT2_EXTENT_CURRENT, |
| 404 | &extent); |
| 405 | if (retval) |
| 406 | return; |
| 407 | dbg_print_extent(0, &extent); |
| 408 | } |
| 409 | |
| 410 | void do_print_all(int argc, char **argv) |
| 411 | { |
| 412 | const char *usage = "[--leaf-only|--reverse|--reverse-leaf]"; |
| 413 | struct ext2fs_extent extent; |
| 414 | errcode_t retval; |
| 415 | errcode_t end_err = EXT2_ET_EXTENT_NO_NEXT; |
| 416 | int op = EXT2_EXTENT_NEXT; |
| 417 | int first_op = EXT2_EXTENT_ROOT; |
| 418 | |
| 419 | |
| 420 | if (common_extent_args_process(argc, argv, 1, 2, "print_all", |
| 421 | usage, 0)) |
| 422 | return; |
| 423 | |
| 424 | if (argc == 2) { |
| 425 | if (!strcmp(argv[1], "--leaf-only")) |
| 426 | op = EXT2_EXTENT_NEXT_LEAF; |
| 427 | else if (!strcmp(argv[1], "--reverse")) { |
| 428 | op = EXT2_EXTENT_PREV; |
| 429 | first_op = EXT2_EXTENT_LAST_LEAF; |
| 430 | end_err = EXT2_ET_EXTENT_NO_PREV; |
| 431 | } else if (!strcmp(argv[1], "--reverse-leaf")) { |
| 432 | op = EXT2_EXTENT_PREV_LEAF; |
| 433 | first_op = EXT2_EXTENT_LAST_LEAF; |
| 434 | end_err = EXT2_ET_EXTENT_NO_PREV; |
| 435 | } else { |
| 436 | fprintf(stderr, "Usage: %s %s\n", argv[0], usage); |
| 437 | return; |
| 438 | } |
| 439 | } |
| 440 | |
| 441 | retval = ext2fs_extent_get(current_handle, first_op, &extent); |
| 442 | if (retval) { |
| 443 | com_err(argv[0], retval, 0); |
| 444 | return; |
| 445 | } |
| 446 | dbg_print_extent(0, &extent); |
| 447 | |
| 448 | while (1) { |
| 449 | retval = ext2fs_extent_get(current_handle, op, &extent); |
| 450 | if (retval == end_err) |
| 451 | break; |
| 452 | |
| 453 | if (retval) { |
| 454 | com_err(argv[0], retval, 0); |
| 455 | return; |
| 456 | } |
| 457 | dbg_print_extent(0, &extent); |
| 458 | } |
| 459 | } |
| 460 | |
| 461 | void do_fix_parents(int argc, char **argv) |
| 462 | { |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 463 | errcode_t retval; |
| 464 | |
| 465 | if (common_extent_args_process(argc, argv, 1, 1, "fix_parents", "", |
| 466 | CHECK_FS_RW)) |
| 467 | return; |
| 468 | |
| 469 | retval = ext2fs_extent_fix_parents(current_handle); |
| 470 | if (retval) { |
| 471 | com_err(argv[0], retval, 0); |
| 472 | return; |
| 473 | } |
| 474 | } |
| 475 | |
| 476 | void do_info(int argc, char **argv) |
| 477 | { |
| 478 | struct ext2fs_extent extent; |
| 479 | struct ext2_extent_info info; |
| 480 | errcode_t retval; |
| 481 | |
| 482 | if (common_extent_args_process(argc, argv, 1, 1, "info", "", 0)) |
| 483 | return; |
| 484 | |
| 485 | retval = ext2fs_extent_get_info(current_handle, &info); |
| 486 | if (retval) { |
| 487 | com_err(argv[0], retval, 0); |
| 488 | return; |
| 489 | } |
| 490 | |
| 491 | retval = ext2fs_extent_get(current_handle, |
| 492 | EXT2_EXTENT_CURRENT, &extent); |
| 493 | if (retval) { |
| 494 | com_err(argv[0], retval, 0); |
| 495 | return; |
| 496 | } |
| 497 | |
| 498 | dbg_print_extent(0, &extent); |
| 499 | |
| 500 | printf("Current handle location: %d/%d (max: %d, bytes %d), level %d/%d\n", |
| 501 | info.curr_entry, info.num_entries, info.max_entries, |
| 502 | info.bytes_avail, info.curr_level, info.max_depth); |
| 503 | printf("\tmax lblk: %llu, max pblk: %llu\n", info.max_lblk, |
| 504 | info.max_pblk); |
| 505 | printf("\tmax_len: %u, max_uninit_len: %u\n", info.max_len, |
| 506 | info.max_uninit_len); |
| 507 | } |
| 508 | |
| 509 | void do_goto_block(int argc, char **argv) |
| 510 | { |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 511 | errcode_t retval; |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 512 | blk64_t blk; |
| 513 | int level = 0, err; |
| 514 | |
| 515 | if (common_extent_args_process(argc, argv, 2, 3, "goto_block", |
| 516 | "block [level]", 0)) |
| 517 | return; |
| 518 | |
| 519 | if (strtoblk(argv[0], argv[1], &blk)) |
| 520 | return; |
| 521 | |
| 522 | if (argc == 3) { |
| 523 | level = parse_ulong(argv[2], argv[0], "level", &err); |
| 524 | if (err) |
| 525 | return; |
| 526 | } |
| 527 | |
| 528 | retval = ext2fs_extent_goto2(current_handle, level, (blk64_t) blk); |
| 529 | |
| 530 | if (retval) { |
| 531 | com_err(argv[0], retval, |
| 532 | "while trying to go to block %llu, level %d", |
| 533 | (unsigned long long) blk, level); |
| 534 | return; |
| 535 | } |
| 536 | |
Theodore Ts'o | 9e85208 | 2013-01-14 14:41:46 -0500 | [diff] [blame] | 537 | generic_goto_node(NULL, argc, argv, EXT2_EXTENT_CURRENT); |
Theodore Ts'o | bee7b67 | 2012-12-22 18:50:33 -0500 | [diff] [blame] | 538 | } |