1 /* $NetBSD: fsdb.c,v 1.2 1995/10/08 23:18:10 thorpej Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 * Copyright (c) 1995 John T. Kohl 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 22 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 23 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 24 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 25 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 26 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 28 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 29 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #ifndef lint 34 static const char rcsid[] = 35 "$FreeBSD$"; 36 #endif /* not lint */ 37 38 #include <sys/param.h> 39 #include <ctype.h> 40 #include <err.h> 41 #include <grp.h> 42 #include <histedit.h> 43 #include <pwd.h> 44 #include <stdint.h> 45 #include <string.h> 46 #include <time.h> 47 #include <timeconv.h> 48 49 #include <ufs/ufs/dinode.h> 50 #include <ufs/ufs/dir.h> 51 #include <ufs/ffs/fs.h> 52 53 #include "fsdb.h" 54 #include "fsck.h" 55 56 static void usage(void) __dead2; 57 int cmdloop(void); 58 static int compare_blk32(uint32_t *wantedblk, uint32_t curblk); 59 static int compare_blk64(uint64_t *wantedblk, uint64_t curblk); 60 static int founddatablk(uint64_t blk); 61 static int find_blks32(uint32_t *buf, int size, uint32_t *blknum); 62 static int find_blks64(uint64_t *buf, int size, uint64_t *blknum); 63 static int find_indirblks32(uint32_t blk, int ind_level, uint32_t *blknum); 64 static int find_indirblks64(uint64_t blk, int ind_level, uint64_t *blknum); 65 66 static void 67 usage(void) 68 { 69 fprintf(stderr, "usage: fsdb [-d] [-f] [-r] fsname\n"); 70 exit(1); 71 } 72 73 int returntosingle; 74 char nflag; 75 76 /* 77 * We suck in lots of fsck code, and just pick & choose the stuff we want. 78 * 79 * fsreadfd is set up to read from the file system, fswritefd to write to 80 * the file system. 81 */ 82 int 83 main(int argc, char *argv[]) 84 { 85 int ch, rval; 86 char *fsys = NULL; 87 88 while (-1 != (ch = getopt(argc, argv, "fdr"))) { 89 switch (ch) { 90 case 'f': 91 /* The -f option is left for historical 92 * reasons and has no meaning. 93 */ 94 break; 95 case 'd': 96 debug++; 97 break; 98 case 'r': 99 nflag++; /* "no" in fsck, readonly for us */ 100 break; 101 default: 102 usage(); 103 } 104 } 105 argc -= optind; 106 argv += optind; 107 if (argc != 1) 108 usage(); 109 else 110 fsys = argv[0]; 111 112 sblock_init(); 113 if (!setup(fsys)) 114 errx(1, "cannot set up file system `%s'", fsys); 115 printf("%s file system `%s'\nLast Mounted on %s\n", 116 nflag? "Examining": "Editing", fsys, sblock.fs_fsmnt); 117 rval = cmdloop(); 118 if (!nflag) { 119 sblock.fs_clean = 0; /* mark it dirty */ 120 sbdirty(); 121 ckfini(0); 122 printf("*** FILE SYSTEM MARKED DIRTY\n"); 123 printf("*** BE SURE TO RUN FSCK TO CLEAN UP ANY DAMAGE\n"); 124 printf("*** IF IT WAS MOUNTED, RE-MOUNT WITH -u -o reload\n"); 125 } 126 exit(rval); 127 } 128 129 #define CMDFUNC(func) int func(int argc, char *argv[]) 130 #define CMDFUNCSTART(func) int func(int argc, char *argv[]) 131 132 CMDFUNC(helpfn); 133 CMDFUNC(focus); /* focus on inode */ 134 CMDFUNC(active); /* print active inode */ 135 CMDFUNC(blocks); /* print blocks for active inode */ 136 CMDFUNC(focusname); /* focus by name */ 137 CMDFUNC(zapi); /* clear inode */ 138 CMDFUNC(uplink); /* incr link */ 139 CMDFUNC(downlink); /* decr link */ 140 CMDFUNC(linkcount); /* set link count */ 141 CMDFUNC(quit); /* quit */ 142 CMDFUNC(findblk); /* find block */ 143 CMDFUNC(ls); /* list directory */ 144 CMDFUNC(rm); /* remove name */ 145 CMDFUNC(ln); /* add name */ 146 CMDFUNC(newtype); /* change type */ 147 CMDFUNC(chmode); /* change mode */ 148 CMDFUNC(chlen); /* change length */ 149 CMDFUNC(chaflags); /* change flags */ 150 CMDFUNC(chgen); /* change generation */ 151 CMDFUNC(chowner); /* change owner */ 152 CMDFUNC(chgroup); /* Change group */ 153 CMDFUNC(back); /* pop back to last ino */ 154 CMDFUNC(chbtime); /* Change btime */ 155 CMDFUNC(chmtime); /* Change mtime */ 156 CMDFUNC(chctime); /* Change ctime */ 157 CMDFUNC(chatime); /* Change atime */ 158 CMDFUNC(chinum); /* Change inode # of dirent */ 159 CMDFUNC(chname); /* Change dirname of dirent */ 160 161 struct cmdtable cmds[] = { 162 { "help", "Print out help", 1, 1, FL_RO, helpfn }, 163 { "?", "Print out help", 1, 1, FL_RO, helpfn }, 164 { "inode", "Set active inode to INUM", 2, 2, FL_RO, focus }, 165 { "clri", "Clear inode INUM", 2, 2, FL_WR, zapi }, 166 { "lookup", "Set active inode by looking up NAME", 2, 2, FL_RO | FL_ST, focusname }, 167 { "cd", "Set active inode by looking up NAME", 2, 2, FL_RO | FL_ST, focusname }, 168 { "back", "Go to previous active inode", 1, 1, FL_RO, back }, 169 { "active", "Print active inode", 1, 1, FL_RO, active }, 170 { "print", "Print active inode", 1, 1, FL_RO, active }, 171 { "blocks", "Print block numbers of active inode", 1, 1, FL_RO, blocks }, 172 { "uplink", "Increment link count", 1, 1, FL_WR, uplink }, 173 { "downlink", "Decrement link count", 1, 1, FL_WR, downlink }, 174 { "linkcount", "Set link count to COUNT", 2, 2, FL_WR, linkcount }, 175 { "findblk", "Find inode owning disk block(s)", 2, 33, FL_RO, findblk}, 176 { "ls", "List current inode as directory", 1, 1, FL_RO, ls }, 177 { "rm", "Remove NAME from current inode directory", 2, 2, FL_WR | FL_ST, rm }, 178 { "del", "Remove NAME from current inode directory", 2, 2, FL_WR | FL_ST, rm }, 179 { "ln", "Hardlink INO into current inode directory as NAME", 3, 3, FL_WR | FL_ST, ln }, 180 { "chinum", "Change dir entry number INDEX to INUM", 3, 3, FL_WR, chinum }, 181 { "chname", "Change dir entry number INDEX to NAME", 3, 3, FL_WR | FL_ST, chname }, 182 { "chtype", "Change type of current inode to TYPE", 2, 2, FL_WR, newtype }, 183 { "chmod", "Change mode of current inode to MODE", 2, 2, FL_WR, chmode }, 184 { "chlen", "Change length of current inode to LENGTH", 2, 2, FL_WR, chlen }, 185 { "chown", "Change owner of current inode to OWNER", 2, 2, FL_WR, chowner }, 186 { "chgrp", "Change group of current inode to GROUP", 2, 2, FL_WR, chgroup }, 187 { "chflags", "Change flags of current inode to FLAGS", 2, 2, FL_WR, chaflags }, 188 { "chgen", "Change generation number of current inode to GEN", 2, 2, FL_WR, chgen }, 189 { "btime", "Change btime of current inode to BTIME", 2, 2, FL_WR, chbtime }, 190 { "mtime", "Change mtime of current inode to MTIME", 2, 2, FL_WR, chmtime }, 191 { "ctime", "Change ctime of current inode to CTIME", 2, 2, FL_WR, chctime }, 192 { "atime", "Change atime of current inode to ATIME", 2, 2, FL_WR, chatime }, 193 { "quit", "Exit", 1, 1, FL_RO, quit }, 194 { "q", "Exit", 1, 1, FL_RO, quit }, 195 { "exit", "Exit", 1, 1, FL_RO, quit }, 196 { NULL, 0, 0, 0, 0, NULL }, 197 }; 198 199 int 200 helpfn(int argc, char *argv[]) 201 { 202 struct cmdtable *cmdtp; 203 204 printf("Commands are:\n%-10s %5s %5s %s\n", 205 "command", "min args", "max args", "what"); 206 207 for (cmdtp = cmds; cmdtp->cmd; cmdtp++) 208 printf("%-10s %5u %5u %s\n", 209 cmdtp->cmd, cmdtp->minargc-1, cmdtp->maxargc-1, cmdtp->helptxt); 210 return 0; 211 } 212 213 char * 214 prompt(EditLine *el) 215 { 216 static char pstring[64]; 217 snprintf(pstring, sizeof(pstring), "fsdb (inum: %ju)> ", 218 (uintmax_t)curinum); 219 return pstring; 220 } 221 222 223 int 224 cmdloop(void) 225 { 226 char *line; 227 const char *elline; 228 int cmd_argc, rval = 0, known; 229 #define scratch known 230 char **cmd_argv; 231 struct cmdtable *cmdp; 232 History *hist; 233 EditLine *elptr; 234 HistEvent he; 235 236 curinode = ginode(UFS_ROOTINO); 237 curinum = UFS_ROOTINO; 238 printactive(0); 239 240 hist = history_init(); 241 history(hist, &he, H_SETSIZE, 100); /* 100 elt history buffer */ 242 243 elptr = el_init("fsdb", stdin, stdout, stderr); 244 el_set(elptr, EL_EDITOR, "emacs"); 245 el_set(elptr, EL_PROMPT, prompt); 246 el_set(elptr, EL_HIST, history, hist); 247 el_source(elptr, NULL); 248 249 while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) { 250 if (debug) 251 printf("command `%s'\n", elline); 252 253 history(hist, &he, H_ENTER, elline); 254 255 line = strdup(elline); 256 cmd_argv = crack(line, &cmd_argc); 257 /* 258 * el_parse returns -1 to signal that it's not been handled 259 * internally. 260 */ 261 if (el_parse(elptr, cmd_argc, (const char **)cmd_argv) != -1) 262 continue; 263 if (cmd_argc) { 264 known = 0; 265 for (cmdp = cmds; cmdp->cmd; cmdp++) { 266 if (!strcmp(cmdp->cmd, cmd_argv[0])) { 267 if ((cmdp->flags & FL_WR) == FL_WR && nflag) 268 warnx("`%s' requires write access", cmd_argv[0]), 269 rval = 1; 270 else if (cmd_argc >= cmdp->minargc && 271 cmd_argc <= cmdp->maxargc) 272 rval = (*cmdp->handler)(cmd_argc, cmd_argv); 273 else if (cmd_argc >= cmdp->minargc && 274 (cmdp->flags & FL_ST) == FL_ST) { 275 strcpy(line, elline); 276 cmd_argv = recrack(line, &cmd_argc, cmdp->maxargc); 277 rval = (*cmdp->handler)(cmd_argc, cmd_argv); 278 } else 279 rval = argcount(cmdp, cmd_argc, cmd_argv); 280 known = 1; 281 break; 282 } 283 } 284 if (!known) 285 warnx("unknown command `%s'", cmd_argv[0]), rval = 1; 286 } else 287 rval = 0; 288 free(line); 289 if (rval < 0) 290 /* user typed "quit" */ 291 return 0; 292 if (rval) 293 warnx("rval was %d", rval); 294 } 295 el_end(elptr); 296 history_end(hist); 297 return rval; 298 } 299 300 union dinode *curinode; 301 ino_t curinum, ocurrent; 302 303 #define GETINUM(ac,inum) inum = strtoul(argv[ac], &cp, 0); \ 304 if (inum < UFS_ROOTINO || inum > maxino || cp == argv[ac] || *cp != '\0' ) { \ 305 printf("inode %ju out of range; range is [%ju,%ju]\n", \ 306 (uintmax_t)inum, (uintmax_t)UFS_ROOTINO, (uintmax_t)maxino);\ 307 return 1; \ 308 } 309 310 /* 311 * Focus on given inode number 312 */ 313 CMDFUNCSTART(focus) 314 { 315 ino_t inum; 316 char *cp; 317 318 GETINUM(1,inum); 319 curinode = ginode(inum); 320 ocurrent = curinum; 321 curinum = inum; 322 printactive(0); 323 return 0; 324 } 325 326 CMDFUNCSTART(back) 327 { 328 curinum = ocurrent; 329 curinode = ginode(curinum); 330 printactive(0); 331 return 0; 332 } 333 334 CMDFUNCSTART(zapi) 335 { 336 ino_t inum; 337 union dinode *dp; 338 char *cp; 339 340 GETINUM(1,inum); 341 dp = ginode(inum); 342 clearinode(dp); 343 inodirty(); 344 if (curinode) /* re-set after potential change */ 345 curinode = ginode(curinum); 346 return 0; 347 } 348 349 CMDFUNCSTART(active) 350 { 351 printactive(0); 352 return 0; 353 } 354 355 CMDFUNCSTART(blocks) 356 { 357 printactive(1); 358 return 0; 359 } 360 361 CMDFUNCSTART(quit) 362 { 363 return -1; 364 } 365 366 CMDFUNCSTART(uplink) 367 { 368 if (!checkactive()) 369 return 1; 370 DIP_SET(curinode, di_nlink, DIP(curinode, di_nlink) + 1); 371 printf("inode %ju link count now %d\n", 372 (uintmax_t)curinum, DIP(curinode, di_nlink)); 373 inodirty(); 374 return 0; 375 } 376 377 CMDFUNCSTART(downlink) 378 { 379 if (!checkactive()) 380 return 1; 381 DIP_SET(curinode, di_nlink, DIP(curinode, di_nlink) - 1); 382 printf("inode %ju link count now %d\n", 383 (uintmax_t)curinum, DIP(curinode, di_nlink)); 384 inodirty(); 385 return 0; 386 } 387 388 const char *typename[] = { 389 "unknown", 390 "fifo", 391 "char special", 392 "unregistered #3", 393 "directory", 394 "unregistered #5", 395 "blk special", 396 "unregistered #7", 397 "regular", 398 "unregistered #9", 399 "symlink", 400 "unregistered #11", 401 "socket", 402 "unregistered #13", 403 "whiteout", 404 }; 405 406 int diroff; 407 int slot; 408 409 int 410 scannames(struct inodesc *idesc) 411 { 412 struct direct *dirp = idesc->id_dirp; 413 414 printf("slot %d off %d ino %d reclen %d: %s, `%.*s'\n", 415 slot++, diroff, dirp->d_ino, dirp->d_reclen, 416 typename[dirp->d_type], dirp->d_namlen, dirp->d_name); 417 diroff += dirp->d_reclen; 418 return (KEEPON); 419 } 420 421 CMDFUNCSTART(ls) 422 { 423 struct inodesc idesc; 424 checkactivedir(); /* let it go on anyway */ 425 426 slot = 0; 427 diroff = 0; 428 idesc.id_number = curinum; 429 idesc.id_func = scannames; 430 idesc.id_type = DATA; 431 idesc.id_fix = IGNORE; 432 ckinode(curinode, &idesc); 433 curinode = ginode(curinum); 434 435 return 0; 436 } 437 438 static int findblk_numtofind; 439 static int wantedblksize; 440 441 CMDFUNCSTART(findblk) 442 { 443 ino_t inum, inosused; 444 uint32_t *wantedblk32; 445 uint64_t *wantedblk64; 446 struct bufarea *cgbp; 447 struct cg *cgp; 448 int c, i, is_ufs2; 449 450 wantedblksize = (argc - 1); 451 is_ufs2 = sblock.fs_magic == FS_UFS2_MAGIC; 452 ocurrent = curinum; 453 454 if (is_ufs2) { 455 wantedblk64 = calloc(wantedblksize, sizeof(uint64_t)); 456 if (wantedblk64 == NULL) 457 err(1, "malloc"); 458 for (i = 1; i < argc; i++) 459 wantedblk64[i - 1] = dbtofsb(&sblock, strtoull(argv[i], NULL, 0)); 460 } else { 461 wantedblk32 = calloc(wantedblksize, sizeof(uint32_t)); 462 if (wantedblk32 == NULL) 463 err(1, "malloc"); 464 for (i = 1; i < argc; i++) 465 wantedblk32[i - 1] = dbtofsb(&sblock, strtoull(argv[i], NULL, 0)); 466 } 467 findblk_numtofind = wantedblksize; 468 /* 469 * sblock.fs_ncg holds a number of cylinder groups. 470 * Iterate over all cylinder groups. 471 */ 472 for (c = 0; c < sblock.fs_ncg; c++) { 473 /* 474 * sblock.fs_ipg holds a number of inodes per cylinder group. 475 * Calculate a highest inode number for a given cylinder group. 476 */ 477 inum = c * sblock.fs_ipg; 478 /* Read cylinder group. */ 479 cgbp = cgget(c); 480 cgp = cgbp->b_un.b_cg; 481 /* 482 * Get a highest used inode number for a given cylinder group. 483 * For UFS1 all inodes initialized at the newfs stage. 484 */ 485 if (is_ufs2) 486 inosused = cgp->cg_initediblk; 487 else 488 inosused = sblock.fs_ipg; 489 490 for (; inosused > 0; inum++, inosused--) { 491 /* Skip magic inodes: 0, UFS_WINO, UFS_ROOTINO. */ 492 if (inum < UFS_ROOTINO) 493 continue; 494 /* 495 * Check if the block we are looking for is just an inode block. 496 * 497 * ino_to_fsba() - get block containing inode from its number. 498 * INOPB() - get a number of inodes in one disk block. 499 */ 500 if (is_ufs2 ? 501 compare_blk64(wantedblk64, ino_to_fsba(&sblock, inum)) : 502 compare_blk32(wantedblk32, ino_to_fsba(&sblock, inum))) { 503 printf("block %llu: inode block (%ju-%ju)\n", 504 (unsigned long long)fsbtodb(&sblock, 505 ino_to_fsba(&sblock, inum)), 506 (uintmax_t)(inum / INOPB(&sblock)) * INOPB(&sblock), 507 (uintmax_t)(inum / INOPB(&sblock) + 1) * INOPB(&sblock)); 508 findblk_numtofind--; 509 if (findblk_numtofind == 0) 510 goto end; 511 } 512 /* Get on-disk inode aka dinode. */ 513 curinum = inum; 514 curinode = ginode(inum); 515 /* Find IFLNK dinode with allocated data blocks. */ 516 switch (DIP(curinode, di_mode) & IFMT) { 517 case IFDIR: 518 case IFREG: 519 if (DIP(curinode, di_blocks) == 0) 520 continue; 521 break; 522 case IFLNK: 523 { 524 uint64_t size = DIP(curinode, di_size); 525 if (size > 0 && size < sblock.fs_maxsymlinklen && 526 DIP(curinode, di_blocks) == 0) 527 continue; 528 else 529 break; 530 } 531 default: 532 continue; 533 } 534 /* Look through direct data blocks. */ 535 if (is_ufs2 ? 536 find_blks64(curinode->dp2.di_db, UFS_NDADDR, wantedblk64) : 537 find_blks32(curinode->dp1.di_db, UFS_NDADDR, wantedblk32)) 538 goto end; 539 for (i = 0; i < UFS_NIADDR; i++) { 540 /* 541 * Does the block we are looking for belongs to the 542 * indirect blocks? 543 */ 544 if (is_ufs2 ? 545 compare_blk64(wantedblk64, curinode->dp2.di_ib[i]) : 546 compare_blk32(wantedblk32, curinode->dp1.di_ib[i])) 547 if (founddatablk(is_ufs2 ? curinode->dp2.di_ib[i] : 548 curinode->dp1.di_ib[i])) 549 goto end; 550 /* 551 * Search through indirect, double and triple indirect 552 * data blocks. 553 */ 554 if (is_ufs2 ? (curinode->dp2.di_ib[i] != 0) : 555 (curinode->dp1.di_ib[i] != 0)) 556 if (is_ufs2 ? 557 find_indirblks64(curinode->dp2.di_ib[i], i, 558 wantedblk64) : 559 find_indirblks32(curinode->dp1.di_ib[i], i, 560 wantedblk32)) 561 goto end; 562 } 563 } 564 } 565 end: 566 curinum = ocurrent; 567 curinode = ginode(curinum); 568 free(wantedblk32); 569 free(wantedblk64); 570 return 0; 571 } 572 573 static int 574 compare_blk32(uint32_t *wantedblk, uint32_t curblk) 575 { 576 int i; 577 578 for (i = 0; i < wantedblksize; i++) { 579 if (wantedblk[i] != 0 && wantedblk[i] == curblk) { 580 wantedblk[i] = 0; 581 return 1; 582 } 583 } 584 return 0; 585 } 586 587 static int 588 compare_blk64(uint64_t *wantedblk, uint64_t curblk) 589 { 590 int i; 591 592 for (i = 0; i < wantedblksize; i++) { 593 if (wantedblk[i] != 0 && wantedblk[i] == curblk) { 594 wantedblk[i] = 0; 595 return 1; 596 } 597 } 598 return 0; 599 } 600 601 static int 602 founddatablk(uint64_t blk) 603 { 604 605 printf("%llu: data block of inode %ju\n", 606 (unsigned long long)fsbtodb(&sblock, blk), (uintmax_t)curinum); 607 findblk_numtofind--; 608 if (findblk_numtofind == 0) 609 return 1; 610 return 0; 611 } 612 613 static int 614 find_blks32(uint32_t *buf, int size, uint32_t *wantedblk) 615 { 616 int blk; 617 for (blk = 0; blk < size; blk++) { 618 if (buf[blk] == 0) 619 continue; 620 if (compare_blk32(wantedblk, buf[blk])) { 621 if (founddatablk(buf[blk])) 622 return 1; 623 } 624 } 625 return 0; 626 } 627 628 static int 629 find_indirblks32(uint32_t blk, int ind_level, uint32_t *wantedblk) 630 { 631 #define MAXNINDIR (MAXBSIZE / sizeof(uint32_t)) 632 uint32_t idblk[MAXNINDIR]; 633 int i; 634 635 blread(fsreadfd, (char *)idblk, fsbtodb(&sblock, blk), (int)sblock.fs_bsize); 636 if (ind_level <= 0) { 637 if (find_blks32(idblk, sblock.fs_bsize / sizeof(uint32_t), wantedblk)) 638 return 1; 639 } else { 640 ind_level--; 641 for (i = 0; i < sblock.fs_bsize / sizeof(uint32_t); i++) { 642 if (compare_blk32(wantedblk, idblk[i])) { 643 if (founddatablk(idblk[i])) 644 return 1; 645 } 646 if (idblk[i] != 0) 647 if (find_indirblks32(idblk[i], ind_level, wantedblk)) 648 return 1; 649 } 650 } 651 #undef MAXNINDIR 652 return 0; 653 } 654 655 static int 656 find_blks64(uint64_t *buf, int size, uint64_t *wantedblk) 657 { 658 int blk; 659 for (blk = 0; blk < size; blk++) { 660 if (buf[blk] == 0) 661 continue; 662 if (compare_blk64(wantedblk, buf[blk])) { 663 if (founddatablk(buf[blk])) 664 return 1; 665 } 666 } 667 return 0; 668 } 669 670 static int 671 find_indirblks64(uint64_t blk, int ind_level, uint64_t *wantedblk) 672 { 673 #define MAXNINDIR (MAXBSIZE / sizeof(uint64_t)) 674 uint64_t idblk[MAXNINDIR]; 675 int i; 676 677 blread(fsreadfd, (char *)idblk, fsbtodb(&sblock, blk), (int)sblock.fs_bsize); 678 if (ind_level <= 0) { 679 if (find_blks64(idblk, sblock.fs_bsize / sizeof(uint64_t), wantedblk)) 680 return 1; 681 } else { 682 ind_level--; 683 for (i = 0; i < sblock.fs_bsize / sizeof(uint64_t); i++) { 684 if (compare_blk64(wantedblk, idblk[i])) { 685 if (founddatablk(idblk[i])) 686 return 1; 687 } 688 if (idblk[i] != 0) 689 if (find_indirblks64(idblk[i], ind_level, wantedblk)) 690 return 1; 691 } 692 } 693 #undef MAXNINDIR 694 return 0; 695 } 696 697 int findino(struct inodesc *idesc); /* from fsck */ 698 static int dolookup(char *name); 699 700 static int 701 dolookup(char *name) 702 { 703 struct inodesc idesc; 704 705 if (!checkactivedir()) 706 return 0; 707 idesc.id_number = curinum; 708 idesc.id_func = findino; 709 idesc.id_name = name; 710 idesc.id_type = DATA; 711 idesc.id_fix = IGNORE; 712 if (ckinode(curinode, &idesc) & FOUND) { 713 curinum = idesc.id_parent; 714 curinode = ginode(curinum); 715 printactive(0); 716 return 1; 717 } else { 718 warnx("name `%s' not found in current inode directory", name); 719 return 0; 720 } 721 } 722 723 CMDFUNCSTART(focusname) 724 { 725 char *p, *val; 726 727 if (!checkactive()) 728 return 1; 729 730 ocurrent = curinum; 731 732 if (argv[1][0] == '/') { 733 curinum = UFS_ROOTINO; 734 curinode = ginode(UFS_ROOTINO); 735 } else { 736 if (!checkactivedir()) 737 return 1; 738 } 739 for (p = argv[1]; p != NULL;) { 740 while ((val = strsep(&p, "/")) != NULL && *val == '\0'); 741 if (val) { 742 printf("component `%s': ", val); 743 fflush(stdout); 744 if (!dolookup(val)) { 745 curinode = ginode(curinum); 746 return(1); 747 } 748 } 749 } 750 return 0; 751 } 752 753 CMDFUNCSTART(ln) 754 { 755 ino_t inum; 756 int rval; 757 char *cp; 758 759 GETINUM(1,inum); 760 761 if (!checkactivedir()) 762 return 1; 763 rval = makeentry(curinum, inum, argv[2]); 764 if (rval) 765 printf("Ino %ju entered as `%s'\n", (uintmax_t)inum, argv[2]); 766 else 767 printf("could not enter name? weird.\n"); 768 curinode = ginode(curinum); 769 return rval; 770 } 771 772 CMDFUNCSTART(rm) 773 { 774 int rval; 775 776 if (!checkactivedir()) 777 return 1; 778 rval = changeino(curinum, argv[1], 0); 779 if (rval & ALTERED) { 780 printf("Name `%s' removed\n", argv[1]); 781 return 0; 782 } else { 783 printf("could not remove name ('%s')? weird.\n", argv[1]); 784 return 1; 785 } 786 } 787 788 long slotcount, desired; 789 790 int 791 chinumfunc(struct inodesc *idesc) 792 { 793 struct direct *dirp = idesc->id_dirp; 794 795 if (slotcount++ == desired) { 796 dirp->d_ino = idesc->id_parent; 797 return STOP|ALTERED|FOUND; 798 } 799 return KEEPON; 800 } 801 802 CMDFUNCSTART(chinum) 803 { 804 char *cp; 805 ino_t inum; 806 struct inodesc idesc; 807 808 slotcount = 0; 809 if (!checkactivedir()) 810 return 1; 811 GETINUM(2,inum); 812 813 desired = strtol(argv[1], &cp, 0); 814 if (cp == argv[1] || *cp != '\0' || desired < 0) { 815 printf("invalid slot number `%s'\n", argv[1]); 816 return 1; 817 } 818 819 idesc.id_number = curinum; 820 idesc.id_func = chinumfunc; 821 idesc.id_fix = IGNORE; 822 idesc.id_type = DATA; 823 idesc.id_parent = inum; /* XXX convenient hiding place */ 824 825 if (ckinode(curinode, &idesc) & FOUND) 826 return 0; 827 else { 828 warnx("no %sth slot in current directory", argv[1]); 829 return 1; 830 } 831 } 832 833 int 834 chnamefunc(struct inodesc *idesc) 835 { 836 struct direct *dirp = idesc->id_dirp; 837 struct direct testdir; 838 839 if (slotcount++ == desired) { 840 /* will name fit? */ 841 testdir.d_namlen = strlen(idesc->id_name); 842 if (DIRSIZ(NEWDIRFMT, &testdir) <= dirp->d_reclen) { 843 dirp->d_namlen = testdir.d_namlen; 844 strcpy(dirp->d_name, idesc->id_name); 845 return STOP|ALTERED|FOUND; 846 } else 847 return STOP|FOUND; /* won't fit, so give up */ 848 } 849 return KEEPON; 850 } 851 852 CMDFUNCSTART(chname) 853 { 854 int rval; 855 char *cp; 856 struct inodesc idesc; 857 858 slotcount = 0; 859 if (!checkactivedir()) 860 return 1; 861 862 desired = strtoul(argv[1], &cp, 0); 863 if (cp == argv[1] || *cp != '\0') { 864 printf("invalid slot number `%s'\n", argv[1]); 865 return 1; 866 } 867 868 idesc.id_number = curinum; 869 idesc.id_func = chnamefunc; 870 idesc.id_fix = IGNORE; 871 idesc.id_type = DATA; 872 idesc.id_name = argv[2]; 873 874 rval = ckinode(curinode, &idesc); 875 if ((rval & (FOUND|ALTERED)) == (FOUND|ALTERED)) 876 return 0; 877 else if (rval & FOUND) { 878 warnx("new name `%s' does not fit in slot %s\n", argv[2], argv[1]); 879 return 1; 880 } else { 881 warnx("no %sth slot in current directory", argv[1]); 882 return 1; 883 } 884 } 885 886 struct typemap { 887 const char *typename; 888 int typebits; 889 } typenamemap[] = { 890 {"file", IFREG}, 891 {"dir", IFDIR}, 892 {"socket", IFSOCK}, 893 {"fifo", IFIFO}, 894 }; 895 896 CMDFUNCSTART(newtype) 897 { 898 int type; 899 struct typemap *tp; 900 901 if (!checkactive()) 902 return 1; 903 type = DIP(curinode, di_mode) & IFMT; 904 for (tp = typenamemap; 905 tp < &typenamemap[nitems(typenamemap)]; 906 tp++) { 907 if (!strcmp(argv[1], tp->typename)) { 908 printf("setting type to %s\n", tp->typename); 909 type = tp->typebits; 910 break; 911 } 912 } 913 if (tp == &typenamemap[nitems(typenamemap)]) { 914 warnx("type `%s' not known", argv[1]); 915 warnx("try one of `file', `dir', `socket', `fifo'"); 916 return 1; 917 } 918 DIP_SET(curinode, di_mode, DIP(curinode, di_mode) & ~IFMT); 919 DIP_SET(curinode, di_mode, DIP(curinode, di_mode) | type); 920 inodirty(); 921 printactive(0); 922 return 0; 923 } 924 925 CMDFUNCSTART(chlen) 926 { 927 int rval = 1; 928 long len; 929 char *cp; 930 931 if (!checkactive()) 932 return 1; 933 934 len = strtol(argv[1], &cp, 0); 935 if (cp == argv[1] || *cp != '\0' || len < 0) { 936 warnx("bad length `%s'", argv[1]); 937 return 1; 938 } 939 940 DIP_SET(curinode, di_size, len); 941 inodirty(); 942 printactive(0); 943 return rval; 944 } 945 946 CMDFUNCSTART(chmode) 947 { 948 int rval = 1; 949 long modebits; 950 char *cp; 951 952 if (!checkactive()) 953 return 1; 954 955 modebits = strtol(argv[1], &cp, 8); 956 if (cp == argv[1] || *cp != '\0' || (modebits & ~07777)) { 957 warnx("bad modebits `%s'", argv[1]); 958 return 1; 959 } 960 961 DIP_SET(curinode, di_mode, DIP(curinode, di_mode) & ~07777); 962 DIP_SET(curinode, di_mode, DIP(curinode, di_mode) | modebits); 963 inodirty(); 964 printactive(0); 965 return rval; 966 } 967 968 CMDFUNCSTART(chaflags) 969 { 970 int rval = 1; 971 u_long flags; 972 char *cp; 973 974 if (!checkactive()) 975 return 1; 976 977 flags = strtoul(argv[1], &cp, 0); 978 if (cp == argv[1] || *cp != '\0' ) { 979 warnx("bad flags `%s'", argv[1]); 980 return 1; 981 } 982 983 if (flags > UINT_MAX) { 984 warnx("flags set beyond 32-bit range of field (%lx)\n", flags); 985 return(1); 986 } 987 DIP_SET(curinode, di_flags, flags); 988 inodirty(); 989 printactive(0); 990 return rval; 991 } 992 993 CMDFUNCSTART(chgen) 994 { 995 int rval = 1; 996 long gen; 997 char *cp; 998 999 if (!checkactive()) 1000 return 1; 1001 1002 gen = strtol(argv[1], &cp, 0); 1003 if (cp == argv[1] || *cp != '\0' ) { 1004 warnx("bad gen `%s'", argv[1]); 1005 return 1; 1006 } 1007 1008 if (gen > INT_MAX || gen < INT_MIN) { 1009 warnx("gen set beyond 32-bit range of field (%lx)\n", gen); 1010 return(1); 1011 } 1012 DIP_SET(curinode, di_gen, gen); 1013 inodirty(); 1014 printactive(0); 1015 return rval; 1016 } 1017 1018 CMDFUNCSTART(linkcount) 1019 { 1020 int rval = 1; 1021 int lcnt; 1022 char *cp; 1023 1024 if (!checkactive()) 1025 return 1; 1026 1027 lcnt = strtol(argv[1], &cp, 0); 1028 if (cp == argv[1] || *cp != '\0' ) { 1029 warnx("bad link count `%s'", argv[1]); 1030 return 1; 1031 } 1032 if (lcnt > USHRT_MAX || lcnt < 0) { 1033 warnx("max link count is %d\n", USHRT_MAX); 1034 return 1; 1035 } 1036 1037 DIP_SET(curinode, di_nlink, lcnt); 1038 inodirty(); 1039 printactive(0); 1040 return rval; 1041 } 1042 1043 CMDFUNCSTART(chowner) 1044 { 1045 int rval = 1; 1046 unsigned long uid; 1047 char *cp; 1048 struct passwd *pwd; 1049 1050 if (!checkactive()) 1051 return 1; 1052 1053 uid = strtoul(argv[1], &cp, 0); 1054 if (cp == argv[1] || *cp != '\0' ) { 1055 /* try looking up name */ 1056 if ((pwd = getpwnam(argv[1]))) { 1057 uid = pwd->pw_uid; 1058 } else { 1059 warnx("bad uid `%s'", argv[1]); 1060 return 1; 1061 } 1062 } 1063 1064 DIP_SET(curinode, di_uid, uid); 1065 inodirty(); 1066 printactive(0); 1067 return rval; 1068 } 1069 1070 CMDFUNCSTART(chgroup) 1071 { 1072 int rval = 1; 1073 unsigned long gid; 1074 char *cp; 1075 struct group *grp; 1076 1077 if (!checkactive()) 1078 return 1; 1079 1080 gid = strtoul(argv[1], &cp, 0); 1081 if (cp == argv[1] || *cp != '\0' ) { 1082 if ((grp = getgrnam(argv[1]))) { 1083 gid = grp->gr_gid; 1084 } else { 1085 warnx("bad gid `%s'", argv[1]); 1086 return 1; 1087 } 1088 } 1089 1090 DIP_SET(curinode, di_gid, gid); 1091 inodirty(); 1092 printactive(0); 1093 return rval; 1094 } 1095 1096 int 1097 dotime(char *name, time_t *secp, int32_t *nsecp) 1098 { 1099 char *p, *val; 1100 struct tm t; 1101 int32_t nsec; 1102 p = strchr(name, '.'); 1103 if (p) { 1104 *p = '\0'; 1105 nsec = strtoul(++p, &val, 0); 1106 if (val == p || *val != '\0' || nsec >= 1000000000 || nsec < 0) { 1107 warnx("invalid nanoseconds"); 1108 goto badformat; 1109 } 1110 } else 1111 nsec = 0; 1112 if (strlen(name) != 14) { 1113 badformat: 1114 warnx("date format: YYYYMMDDHHMMSS[.nsec]"); 1115 return 1; 1116 } 1117 *nsecp = nsec; 1118 1119 for (p = name; *p; p++) 1120 if (*p < '0' || *p > '9') 1121 goto badformat; 1122 1123 p = name; 1124 #define VAL() ((*p++) - '0') 1125 t.tm_year = VAL(); 1126 t.tm_year = VAL() + t.tm_year * 10; 1127 t.tm_year = VAL() + t.tm_year * 10; 1128 t.tm_year = VAL() + t.tm_year * 10 - 1900; 1129 t.tm_mon = VAL(); 1130 t.tm_mon = VAL() + t.tm_mon * 10 - 1; 1131 t.tm_mday = VAL(); 1132 t.tm_mday = VAL() + t.tm_mday * 10; 1133 t.tm_hour = VAL(); 1134 t.tm_hour = VAL() + t.tm_hour * 10; 1135 t.tm_min = VAL(); 1136 t.tm_min = VAL() + t.tm_min * 10; 1137 t.tm_sec = VAL(); 1138 t.tm_sec = VAL() + t.tm_sec * 10; 1139 t.tm_isdst = -1; 1140 1141 *secp = mktime(&t); 1142 if (*secp == -1) { 1143 warnx("date/time out of range"); 1144 return 1; 1145 } 1146 return 0; 1147 } 1148 1149 CMDFUNCSTART(chbtime) 1150 { 1151 time_t secs; 1152 int32_t nsecs; 1153 1154 if (dotime(argv[1], &secs, &nsecs)) 1155 return 1; 1156 if (sblock.fs_magic == FS_UFS1_MAGIC) 1157 return 1; 1158 curinode->dp2.di_birthtime = _time_to_time64(secs); 1159 curinode->dp2.di_birthnsec = nsecs; 1160 inodirty(); 1161 printactive(0); 1162 return 0; 1163 } 1164 1165 CMDFUNCSTART(chmtime) 1166 { 1167 time_t secs; 1168 int32_t nsecs; 1169 1170 if (dotime(argv[1], &secs, &nsecs)) 1171 return 1; 1172 if (sblock.fs_magic == FS_UFS1_MAGIC) 1173 curinode->dp1.di_mtime = _time_to_time32(secs); 1174 else 1175 curinode->dp2.di_mtime = _time_to_time64(secs); 1176 DIP_SET(curinode, di_mtimensec, nsecs); 1177 inodirty(); 1178 printactive(0); 1179 return 0; 1180 } 1181 1182 CMDFUNCSTART(chatime) 1183 { 1184 time_t secs; 1185 int32_t nsecs; 1186 1187 if (dotime(argv[1], &secs, &nsecs)) 1188 return 1; 1189 if (sblock.fs_magic == FS_UFS1_MAGIC) 1190 curinode->dp1.di_atime = _time_to_time32(secs); 1191 else 1192 curinode->dp2.di_atime = _time_to_time64(secs); 1193 DIP_SET(curinode, di_atimensec, nsecs); 1194 inodirty(); 1195 printactive(0); 1196 return 0; 1197 } 1198 1199 CMDFUNCSTART(chctime) 1200 { 1201 time_t secs; 1202 int32_t nsecs; 1203 1204 if (dotime(argv[1], &secs, &nsecs)) 1205 return 1; 1206 if (sblock.fs_magic == FS_UFS1_MAGIC) 1207 curinode->dp1.di_ctime = _time_to_time32(secs); 1208 else 1209 curinode->dp2.di_ctime = _time_to_time64(secs); 1210 DIP_SET(curinode, di_ctimensec, nsecs); 1211 inodirty(); 1212 printactive(0); 1213 return 0; 1214 } 1215