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