1 #include "stdinc.h" 2 #include "dat.h" 3 #include "fns.h" 4 5 #include "9.h" 6 7 typedef struct Fsys Fsys; 8 9 struct Fsys { 10 VtLock* lock; 11 12 char* name; 13 char* dev; 14 char* venti; 15 16 Fs* fs; 17 VtSession* session; 18 int ref; 19 20 int noauth; 21 int noperm; 22 int wstatallow; 23 24 Fsys* next; 25 }; 26 27 static struct { 28 VtLock* lock; 29 Fsys* head; 30 Fsys* tail; 31 32 char* curfsys; 33 } sbox; 34 35 static char *_argv0; 36 #define argv0 _argv0 37 38 static char FsysAll[] = "all"; 39 40 static char EFsysBusy[] = "fsys: '%s' busy"; 41 static char EFsysExists[] = "fsys: '%s' already exists"; 42 static char EFsysNoCurrent[] = "fsys: no current fsys"; 43 static char EFsysNotFound[] = "fsys: '%s' not found"; 44 static char EFsysNotOpen[] = "fsys: '%s' not open"; 45 46 static Fsys* 47 _fsysGet(char* name) 48 { 49 Fsys *fsys; 50 51 if(name == nil || name[0] == '\0') 52 name = "main"; 53 54 vtRLock(sbox.lock); 55 for(fsys = sbox.head; fsys != nil; fsys = fsys->next){ 56 if(strcmp(name, fsys->name) == 0){ 57 fsys->ref++; 58 break; 59 } 60 } 61 vtRUnlock(sbox.lock); 62 if(fsys == nil) 63 vtSetError(EFsysNotFound, name); 64 return fsys; 65 } 66 67 static int 68 cmdPrintConfig(int argc, char* argv[]) 69 { 70 Fsys *fsys; 71 char *usage = "usage: printconfig"; 72 73 ARGBEGIN{ 74 default: 75 return cliError(usage); 76 }ARGEND 77 78 if(argc) 79 return cliError(usage); 80 81 vtRLock(sbox.lock); 82 for(fsys = sbox.head; fsys != nil; fsys = fsys->next){ 83 consPrint("\tfsys %s config %s\n", fsys->name, fsys->dev); 84 if(fsys->venti && fsys->venti[0]) 85 consPrint("\tfsys %s venti %q\n", fsys->name, fsys->venti); 86 } 87 vtRUnlock(sbox.lock); 88 return 1; 89 } 90 91 Fsys* 92 fsysGet(char* name) 93 { 94 Fsys *fsys; 95 96 if((fsys = _fsysGet(name)) == nil) 97 return nil; 98 99 vtLock(fsys->lock); 100 if(fsys->fs == nil){ 101 vtSetError(EFsysNotOpen, fsys->name); 102 vtUnlock(fsys->lock); 103 fsysPut(fsys); 104 return nil; 105 } 106 vtUnlock(fsys->lock); 107 108 return fsys; 109 } 110 111 char* 112 fsysGetName(Fsys* fsys) 113 { 114 return fsys->name; 115 } 116 117 Fsys* 118 fsysIncRef(Fsys* fsys) 119 { 120 vtLock(sbox.lock); 121 fsys->ref++; 122 vtUnlock(sbox.lock); 123 124 return fsys; 125 } 126 127 void 128 fsysPut(Fsys* fsys) 129 { 130 vtLock(sbox.lock); 131 assert(fsys->ref > 0); 132 fsys->ref--; 133 vtUnlock(sbox.lock); 134 } 135 136 Fs* 137 fsysGetFs(Fsys* fsys) 138 { 139 assert(fsys != nil && fsys->fs != nil); 140 141 return fsys->fs; 142 } 143 144 void 145 fsysFsRlock(Fsys* fsys) 146 { 147 vtRLock(fsys->fs->elk); 148 } 149 150 void 151 fsysFsRUnlock(Fsys* fsys) 152 { 153 vtRUnlock(fsys->fs->elk); 154 } 155 156 int 157 fsysNoAuthCheck(Fsys* fsys) 158 { 159 return fsys->noauth; 160 } 161 162 int 163 fsysNoPermCheck(Fsys* fsys) 164 { 165 return fsys->noperm; 166 } 167 168 int 169 fsysWstatAllow(Fsys* fsys) 170 { 171 return fsys->wstatallow; 172 } 173 174 static char modechars[] = "YUGalLdHSATs"; 175 static ulong modebits[] = { 176 ModeSticky, 177 ModeSetUid, 178 ModeSetGid, 179 ModeAppend, 180 ModeExclusive, 181 ModeLink, 182 ModeDir, 183 ModeHidden, 184 ModeSystem, 185 ModeArchive, 186 ModeTemporary, 187 ModeSnapshot, 188 0 189 }; 190 191 char* 192 fsysModeString(ulong mode, char *buf) 193 { 194 int i; 195 char *p; 196 197 p = buf; 198 for(i=0; modebits[i]; i++) 199 if(mode & modebits[i]) 200 *p++ = modechars[i]; 201 sprint(p, "%luo", mode&0777); 202 return buf; 203 } 204 205 int 206 fsysParseMode(char* s, ulong* mode) 207 { 208 ulong x, y; 209 char *p; 210 211 x = 0; 212 for(; *s < '0' || *s > '9'; s++){ 213 if(*s == 0) 214 return 0; 215 p = strchr(modechars, *s); 216 if(p == nil) 217 return 0; 218 x |= modebits[p-modechars]; 219 } 220 y = strtoul(s, &p, 8); 221 if(*p != '\0' || y > 0777) 222 return 0; 223 *mode = x|y; 224 return 1; 225 } 226 227 File* 228 fsysGetRoot(Fsys* fsys, char* name) 229 { 230 File *root, *sub; 231 232 assert(fsys != nil && fsys->fs != nil); 233 234 root = fsGetRoot(fsys->fs); 235 if(name == nil || strcmp(name, "") == 0) 236 return root; 237 238 sub = fileWalk(root, name); 239 fileDecRef(root); 240 241 return sub; 242 } 243 244 static Fsys* 245 fsysAlloc(char* name, char* dev) 246 { 247 Fsys *fsys; 248 249 vtLock(sbox.lock); 250 for(fsys = sbox.head; fsys != nil; fsys = fsys->next){ 251 if(strcmp(fsys->name, name) != 0) 252 continue; 253 vtSetError(EFsysExists, name); 254 vtUnlock(sbox.lock); 255 return nil; 256 } 257 258 fsys = vtMemAllocZ(sizeof(Fsys)); 259 fsys->lock = vtLockAlloc(); 260 fsys->name = vtStrDup(name); 261 fsys->dev = vtStrDup(dev); 262 263 fsys->ref = 1; 264 265 if(sbox.tail != nil) 266 sbox.tail->next = fsys; 267 else 268 sbox.head = fsys; 269 sbox.tail = fsys; 270 vtUnlock(sbox.lock); 271 272 return fsys; 273 } 274 275 static int 276 fsysClose(Fsys* fsys, int argc, char* argv[]) 277 { 278 char *usage = "usage: [fsys name] close"; 279 280 ARGBEGIN{ 281 default: 282 return cliError(usage); 283 }ARGEND 284 if(argc) 285 return cliError(usage); 286 287 return cliError("close isn't working yet; halt %s and then kill fossil", 288 fsys->name); 289 290 /* 291 * Oooh. This could be hard. What if fsys->ref != 1? 292 * Also, fsClose() either does the job or panics, can we 293 * gracefully detect it's still busy? 294 * 295 * More thought and care needed here. 296 fsClose(fsys->fs); 297 fsys->fs = nil; 298 vtClose(fsys->session); 299 fsys->session = nil; 300 301 if(sbox.curfsys != nil && strcmp(fsys->name, sbox.curfsys) == 0){ 302 sbox.curfsys = nil; 303 consPrompt(nil); 304 } 305 306 return 1; 307 */ 308 } 309 310 static int 311 fsysVac(Fsys* fsys, int argc, char* argv[]) 312 { 313 uchar score[VtScoreSize]; 314 char *usage = "usage: [fsys name] vac path"; 315 316 ARGBEGIN{ 317 default: 318 return cliError(usage); 319 }ARGEND 320 if(argc != 1) 321 return cliError(usage); 322 323 if(!fsVac(fsys->fs, argv[0], score)) 324 return 0; 325 326 consPrint("vac:%V\n", score); 327 return 1; 328 } 329 330 static int 331 fsysSnap(Fsys* fsys, int argc, char* argv[]) 332 { 333 int doarchive; 334 char *usage = "usage: [fsys name] snap [-a] [-s /active] [-d /archive/yyyy/mmmm]"; 335 char *src, *dst; 336 337 src = nil; 338 dst = nil; 339 doarchive = 0; 340 ARGBEGIN{ 341 default: 342 return cliError(usage); 343 case 'a': 344 doarchive = 1; 345 break; 346 case 'd': 347 if((dst = ARGF()) == nil) 348 return cliError(usage); 349 break; 350 case 's': 351 if((src = ARGF()) == nil) 352 return cliError(usage); 353 break; 354 }ARGEND 355 if(argc) 356 return cliError(usage); 357 358 if(!fsSnapshot(fsys->fs, src, dst, doarchive)) 359 return 0; 360 361 return 1; 362 } 363 364 static int 365 fsysSnapClean(Fsys *fsys, int argc, char* argv[]) 366 { 367 u32int arch, snap, life; 368 char *usage = "usage: [fsys name] snapclean [maxminutes]\n"; 369 370 ARGBEGIN{ 371 default: 372 return cliError(usage); 373 }ARGEND 374 375 if(argc > 1) 376 return cliError(usage); 377 if(argc == 1) 378 life = atoi(argv[0]); 379 else 380 snapGetTimes(fsys->fs->snap, &arch, &snap, &life); 381 382 fsSnapshotCleanup(fsys->fs, life); 383 return 1; 384 } 385 386 static int 387 fsysSnapTime(Fsys* fsys, int argc, char* argv[]) 388 { 389 char buf[128], *x; 390 int hh, mm, changed; 391 u32int arch, snap, life; 392 char *usage = "usage: [fsys name] snaptime [-a hhmm] [-s snapminutes] [-t maxminutes]"; 393 394 changed = 0; 395 snapGetTimes(fsys->fs->snap, &arch, &snap, &life); 396 ARGBEGIN{ 397 case 'a': 398 changed = 1; 399 x = ARGF(); 400 if(x == nil) 401 return cliError(usage); 402 if(strcmp(x, "none") == 0){ 403 arch = ~(u32int)0; 404 break; 405 } 406 if(strlen(x) != 4 || strspn(x, "0123456789") != 4) 407 return cliError(usage); 408 hh = (x[0]-'0')*10 + x[1]-'0'; 409 mm = (x[2]-'0')*10 + x[3]-'0'; 410 if(hh >= 24 || mm >= 60) 411 return cliError(usage); 412 arch = hh*60+mm; 413 break; 414 case 's': 415 changed = 1; 416 x = ARGF(); 417 if(x == nil) 418 return cliError(usage); 419 if(strcmp(x, "none") == 0){ 420 snap = ~(u32int)0; 421 break; 422 } 423 snap = atoi(x); 424 break; 425 case 't': 426 changed = 1; 427 x = ARGF(); 428 if(x == nil) 429 return cliError(usage); 430 if(strcmp(x, "none") == 0){ 431 life = ~(u32int)0; 432 break; 433 } 434 life = atoi(x); 435 break; 436 default: 437 return cliError(usage); 438 }ARGEND 439 if(argc > 0) 440 return cliError(usage); 441 442 if(changed){ 443 snapSetTimes(fsys->fs->snap, arch, snap, life); 444 return 1; 445 } 446 snapGetTimes(fsys->fs->snap, &arch, &snap, &life); 447 if(arch != ~(u32int)0) 448 sprint(buf, "-a %02d%02d", arch/60, arch%60); 449 else 450 sprint(buf, "-a none"); 451 if(snap != ~(u32int)0) 452 sprint(buf+strlen(buf), " -s %d", snap); 453 else 454 sprint(buf+strlen(buf), " -s none"); 455 if(life != ~(u32int)0) 456 sprint(buf+strlen(buf), " -t %ud", life); 457 else 458 sprint(buf+strlen(buf), " -t none"); 459 consPrint("\tsnaptime %s\n", buf); 460 return 1; 461 } 462 463 static int 464 fsysSync(Fsys* fsys, int argc, char* argv[]) 465 { 466 char *usage = "usage: [fsys name] sync"; 467 int n; 468 469 ARGBEGIN{ 470 default: 471 return cliError(usage); 472 }ARGEND 473 if(argc > 0) 474 return cliError(usage); 475 476 n = cacheDirty(fsys->fs->cache); 477 fsSync(fsys->fs); 478 consPrint("\t%s sync: wrote %d blocks\n", fsys->name, n); 479 return 1; 480 } 481 482 static int 483 fsysHalt(Fsys *fsys, int argc, char* argv[]) 484 { 485 char *usage = "usage: [fsys name] halt"; 486 487 ARGBEGIN{ 488 default: 489 return cliError(usage); 490 }ARGEND 491 if(argc > 0) 492 return cliError(usage); 493 494 fsHalt(fsys->fs); 495 return 1; 496 } 497 498 static int 499 fsysUnhalt(Fsys *fsys, int argc, char* argv[]) 500 { 501 char *usage = "usage: [fsys name] unhalt"; 502 503 ARGBEGIN{ 504 default: 505 return cliError(usage); 506 }ARGEND 507 if(argc > 0) 508 return cliError(usage); 509 510 if(!fsys->fs->halted) 511 return cliError("file system %s not halted", fsys->name); 512 513 fsUnhalt(fsys->fs); 514 return 1; 515 } 516 517 static int 518 fsysRemove(Fsys* fsys, int argc, char* argv[]) 519 { 520 File *file; 521 char *usage = "usage: [fsys name] remove path ..."; 522 523 ARGBEGIN{ 524 default: 525 return cliError(usage); 526 }ARGEND 527 if(argc == 0) 528 return cliError(usage); 529 530 vtRLock(fsys->fs->elk); 531 while(argc > 0){ 532 if((file = fileOpen(fsys->fs, argv[0])) == nil) 533 consPrint("%s: %R\n", argv[0]); 534 else{ 535 if(!fileRemove(file, uidadm)) 536 consPrint("%s: %R\n", argv[0]); 537 fileDecRef(file); 538 } 539 argc--; 540 argv++; 541 } 542 vtRUnlock(fsys->fs->elk); 543 544 return 1; 545 } 546 547 static int 548 fsysClri(Fsys* fsys, int argc, char* argv[]) 549 { 550 char *usage = "usage: [fsys name] clri path ..."; 551 552 ARGBEGIN{ 553 default: 554 return cliError(usage); 555 }ARGEND 556 if(argc == 0) 557 return cliError(usage); 558 559 vtRLock(fsys->fs->elk); 560 while(argc > 0){ 561 if(!fileClriPath(fsys->fs, argv[0], uidadm)) 562 consPrint("clri %s: %R\n", argv[0]); 563 argc--; 564 argv++; 565 } 566 vtRUnlock(fsys->fs->elk); 567 568 return 1; 569 } 570 571 /* 572 * Inspect and edit the labels for blocks on disk. 573 */ 574 static int 575 fsysLabel(Fsys* fsys, int argc, char* argv[]) 576 { 577 Fs *fs; 578 Label l; 579 int n, r; 580 u32int addr; 581 Block *b, *bb; 582 char *usage = "usage: [fsys name] label addr [type state epoch epochClose tag]"; 583 584 ARGBEGIN{ 585 default: 586 return cliError(usage); 587 }ARGEND 588 if(argc != 1 && argc != 6) 589 return cliError(usage); 590 591 r = 0; 592 vtRLock(fsys->fs->elk); 593 594 fs = fsys->fs; 595 addr = strtoul(argv[0], 0, 0); 596 b = cacheLocal(fs->cache, PartData, addr, OReadOnly); 597 if(b == nil) 598 goto Out0; 599 600 l = b->l; 601 consPrint("%slabel %#ux %ud %ud %ud %ud %#x\n", 602 argc==6 ? "old: " : "", addr, l.type, l.state, 603 l.epoch, l.epochClose, l.tag); 604 605 if(argc == 6){ 606 if(strcmp(argv[1], "-") != 0) 607 l.type = atoi(argv[1]); 608 if(strcmp(argv[2], "-") != 0) 609 l.state = atoi(argv[2]); 610 if(strcmp(argv[3], "-") != 0) 611 l.epoch = strtoul(argv[3], 0, 0); 612 if(strcmp(argv[4], "-") != 0) 613 l.epochClose = strtoul(argv[4], 0, 0); 614 if(strcmp(argv[5], "-") != 0) 615 l.tag = strtoul(argv[5], 0, 0); 616 617 consPrint("new: label %#ux %ud %ud %ud %ud %#x\n", 618 addr, l.type, l.state, l.epoch, l.epochClose, l.tag); 619 bb = _blockSetLabel(b, &l); 620 if(bb == nil) 621 goto Out1; 622 n = 0; 623 for(;;){ 624 if(blockWrite(bb)){ 625 while(bb->iostate != BioClean){ 626 assert(bb->iostate == BioWriting); 627 vtSleep(bb->ioready); 628 } 629 break; 630 } 631 consPrint("blockWrite: %R\n"); 632 if(n++ >= 5){ 633 consPrint("giving up\n"); 634 break; 635 } 636 sleep(5*1000); 637 } 638 blockPut(bb); 639 } 640 r = 1; 641 Out1: 642 blockPut(b); 643 Out0: 644 vtRUnlock(fs->elk); 645 646 return r; 647 } 648 649 /* 650 * Inspect and edit the blocks on disk. 651 */ 652 static int 653 fsysBlock(Fsys* fsys, int argc, char* argv[]) 654 { 655 Fs *fs; 656 char *s; 657 Block *b; 658 uchar *buf; 659 u32int addr; 660 int c, count, i, offset; 661 char *usage = "usage: [fsys name] block addr offset [count [data]]"; 662 663 ARGBEGIN{ 664 default: 665 return cliError(usage); 666 }ARGEND 667 if(argc < 2 || argc > 4) 668 return cliError(usage); 669 670 fs = fsys->fs; 671 addr = strtoul(argv[0], 0, 0); 672 offset = strtoul(argv[1], 0, 0); 673 if(offset < 0 || offset >= fs->blockSize){ 674 vtSetError("bad offset"); 675 return 0; 676 } 677 if(argc > 2) 678 count = strtoul(argv[2], 0, 0); 679 else 680 count = 100000000; 681 if(offset+count > fs->blockSize) 682 count = fs->blockSize - count; 683 684 vtRLock(fs->elk); 685 686 b = cacheLocal(fs->cache, PartData, addr, argc==4 ? OReadWrite : OReadOnly); 687 if(b == nil){ 688 vtSetError("cacheLocal %#ux: %R", addr); 689 vtRUnlock(fs->elk); 690 return 0; 691 } 692 693 consPrint("\t%sblock %#ux %ud %ud %.*H\n", 694 argc==4 ? "old: " : "", addr, offset, count, count, b->data+offset); 695 696 if(argc == 4){ 697 s = argv[3]; 698 if(strlen(s) != 2*count){ 699 vtSetError("bad data count"); 700 goto Out; 701 } 702 buf = vtMemAllocZ(count); 703 for(i = 0; i < count*2; i++){ 704 if(s[i] >= '0' && s[i] <= '9') 705 c = s[i] - '0'; 706 else if(s[i] >= 'a' && s[i] <= 'f') 707 c = s[i] - 'a' + 10; 708 else if(s[i] >= 'A' && s[i] <= 'F') 709 c = s[i] - 'A' + 10; 710 else{ 711 vtSetError("bad hex"); 712 vtMemFree(buf); 713 goto Out; 714 } 715 if((i & 1) == 0) 716 c <<= 4; 717 buf[i>>1] |= c; 718 } 719 memmove(b->data+offset, buf, count); 720 consPrint("\tnew: block %#ux %ud %ud %.*H\n", 721 addr, offset, count, count, b->data+offset); 722 blockDirty(b); 723 } 724 725 Out: 726 blockPut(b); 727 vtRUnlock(fs->elk); 728 729 return 1; 730 } 731 732 /* 733 * Free a disk block. 734 */ 735 static int 736 fsysBfree(Fsys* fsys, int argc, char* argv[]) 737 { 738 Fs *fs; 739 Label l; 740 char *p; 741 Block *b; 742 u32int addr; 743 char *usage = "usage: [fsys name] bfree addr ..."; 744 745 ARGBEGIN{ 746 default: 747 return cliError(usage); 748 }ARGEND 749 if(argc == 0) 750 return cliError(usage); 751 752 fs = fsys->fs; 753 vtRLock(fs->elk); 754 while(argc > 0){ 755 addr = strtoul(argv[0], &p, 0); 756 if(*p != '\0'){ 757 consPrint("bad address - '%s'\n", addr); 758 /* syntax error; let's stop */ 759 vtRUnlock(fs->elk); 760 return 0; 761 } 762 b = cacheLocal(fs->cache, PartData, addr, OReadOnly); 763 if(b == nil){ 764 consPrint("loading %#ux: %R\n", addr); 765 continue; 766 } 767 l = b->l; 768 if(l.state == BsFree) 769 consPrint("%#ux is already free\n", addr); 770 else{ 771 consPrint("label %#ux %ud %ud %ud %ud %#x\n", 772 addr, l.type, l.state, l.epoch, l.epochClose, l.tag); 773 l.state = BsFree; 774 l.type = BtMax; 775 l.tag = 0; 776 l.epoch = 0; 777 l.epochClose = 0; 778 if(!blockSetLabel(b, &l, 0)) 779 consPrint("freeing %#ux: %R\n", addr); 780 } 781 blockPut(b); 782 argc--; 783 argv++; 784 } 785 vtRUnlock(fs->elk); 786 787 return 1; 788 } 789 790 static int 791 fsysDf(Fsys *fsys, int argc, char* argv[]) 792 { 793 char *usage = "usage: [fsys name] df"; 794 u32int used, tot, bsize; 795 Fs *fs; 796 797 ARGBEGIN{ 798 default: 799 return cliError(usage); 800 }ARGEND 801 if(argc != 0) 802 return cliError(usage); 803 804 fs = fsys->fs; 805 cacheCountUsed(fs->cache, fs->elo, &used, &tot, &bsize); 806 consPrint("\t%s: %,llud used + %,llud free = %,llud (%ud%% used)\n", 807 fsys->name, used*(vlong)bsize, (tot-used)*(vlong)bsize, 808 tot*(vlong)bsize, used*100/tot); 809 return 1; 810 } 811 812 /* 813 * Zero an entry or a pointer. 814 */ 815 static int 816 fsysClrep(Fsys* fsys, int argc, char* argv[], int ch) 817 { 818 Fs *fs; 819 Entry e; 820 Block *b; 821 u32int addr; 822 int i, max, offset, sz; 823 uchar zero[VtEntrySize]; 824 char *usage = "usage: [fsys name] clr%c addr offset ..."; 825 826 ARGBEGIN{ 827 default: 828 return cliError(usage, ch); 829 }ARGEND 830 if(argc < 2) 831 return cliError(usage, ch); 832 833 fs = fsys->fs; 834 vtRLock(fsys->fs->elk); 835 836 addr = strtoul(argv[0], 0, 0); 837 b = cacheLocal(fs->cache, PartData, addr, argc==4 ? OReadWrite : OReadOnly); 838 if(b == nil){ 839 vtSetError("cacheLocal %#ux: %R", addr); 840 Err: 841 vtRUnlock(fsys->fs->elk); 842 return 0; 843 } 844 845 switch(ch){ 846 default: 847 vtSetError("clrep"); 848 goto Err; 849 case 'e': 850 if(b->l.type != BtDir){ 851 vtSetError("wrong block type"); 852 goto Err; 853 } 854 sz = VtEntrySize; 855 memset(&e, 0, sizeof e); 856 entryPack(&e, zero, 0); 857 break; 858 case 'p': 859 if(b->l.type == BtDir || b->l.type == BtData){ 860 vtSetError("wrong block type"); 861 goto Err; 862 } 863 sz = VtScoreSize; 864 memmove(zero, vtZeroScore, VtScoreSize); 865 break; 866 } 867 max = fs->blockSize/sz; 868 869 for(i = 1; i < argc; i++){ 870 offset = atoi(argv[i]); 871 if(offset >= max){ 872 consPrint("\toffset %d too large (>= %d)\n", i, max); 873 continue; 874 } 875 consPrint("\tblock %#ux %d %d %.*H\n", addr, offset*sz, sz, sz, b->data+offset*sz); 876 memmove(b->data+offset*sz, zero, sz); 877 } 878 blockDirty(b); 879 blockPut(b); 880 vtRUnlock(fsys->fs->elk); 881 882 return 1; 883 } 884 885 static int 886 fsysClre(Fsys* fsys, int argc, char* argv[]) 887 { 888 return fsysClrep(fsys, argc, argv, 'e'); 889 } 890 891 static int 892 fsysClrp(Fsys* fsys, int argc, char* argv[]) 893 { 894 return fsysClrep(fsys, argc, argv, 'p'); 895 } 896 897 static int 898 fsysEsearch1(File* f, char* s, u32int elo) 899 { 900 int n, r; 901 DirEntry de; 902 DirEntryEnum *dee; 903 File *ff; 904 Entry e, ee; 905 char *t; 906 907 dee = deeOpen(f); 908 if(dee == nil) 909 return 0; 910 911 n = 0; 912 for(;;){ 913 r = deeRead(dee, &de); 914 if(r < 0){ 915 consPrint("\tdeeRead %s/%s: %R\n", s, de.elem); 916 break; 917 } 918 if(r == 0) 919 break; 920 if(de.mode & ModeSnapshot){ 921 if((ff = fileWalk(f, de.elem)) == nil) 922 consPrint("\tcannot walk %s/%s: %R\n", s, de.elem); 923 else{ 924 if(!fileGetSources(ff, &e, &ee)) 925 consPrint("\tcannot get sources for %s/%s: %R\n", s, de.elem); 926 else if(e.snap != 0 && e.snap < elo){ 927 consPrint("\t%ud\tclri %s/%s\n", e.snap, s, de.elem); 928 n++; 929 } 930 fileDecRef(ff); 931 } 932 } 933 else if(de.mode & ModeDir){ 934 if((ff = fileWalk(f, de.elem)) == nil) 935 consPrint("\tcannot walk %s/%s: %R\n", s, de.elem); 936 else{ 937 t = smprint("%s/%s", s, de.elem); 938 n += fsysEsearch1(ff, t, elo); 939 vtMemFree(t); 940 fileDecRef(ff); 941 } 942 } 943 deCleanup(&de); 944 if(r < 0) 945 break; 946 } 947 deeClose(dee); 948 949 return n; 950 } 951 952 static int 953 fsysEsearch(Fs* fs, char* path, u32int elo) 954 { 955 int n; 956 File *f; 957 DirEntry de; 958 959 f = fileOpen(fs, path); 960 if(f == nil) 961 return 0; 962 if(!fileGetDir(f, &de)){ 963 consPrint("\tfileGetDir %s failed: %R\n", path); 964 fileDecRef(f); 965 return 0; 966 } 967 if((de.mode & ModeDir) == 0){ 968 fileDecRef(f); 969 deCleanup(&de); 970 return 0; 971 } 972 deCleanup(&de); 973 n = fsysEsearch1(f, path, elo); 974 fileDecRef(f); 975 return n; 976 } 977 978 static int 979 fsysEpoch(Fsys* fsys, int argc, char* argv[]) 980 { 981 Fs *fs; 982 int force, n, remove; 983 u32int low, old; 984 char *usage = "usage: [fsys name] epoch [[-ry] low]"; 985 986 force = 0; 987 remove = 0; 988 ARGBEGIN{ 989 case 'y': 990 force = 1; 991 break; 992 case 'r': 993 remove = 1; 994 break; 995 default: 996 return cliError(usage); 997 }ARGEND 998 if(argc > 1) 999 return cliError(usage); 1000 if(argc > 0) 1001 low = strtoul(argv[0], 0, 0); 1002 else 1003 low = ~(u32int)0; 1004 1005 if(low == 0) 1006 return cliError("low epoch cannot be zero"); 1007 1008 fs = fsys->fs; 1009 1010 vtRLock(fs->elk); 1011 consPrint("\tlow %ud hi %ud\n", fs->elo, fs->ehi); 1012 n = fsysEsearch(fsys->fs, "/archive", low); 1013 n += fsysEsearch(fsys->fs, "/snapshot", low); 1014 consPrint("\t%d snapshot%s found with epoch < %ud\n", n, n==1 ? "" : "s", low); 1015 vtRUnlock(fs->elk); 1016 1017 /* 1018 * There's a small race here -- a new snapshot with epoch < low might 1019 * get introduced now that we unlocked fs->elk. Low has to 1020 * be <= fs->ehi. Of course, in order for this to happen low has 1021 * to be equal to the current fs->ehi _and_ a snapshot has to 1022 * run right now. This is a small enough window that I don't care. 1023 */ 1024 if(n != 0 && !force){ 1025 consPrint("\tnot setting low epoch\n"); 1026 return 1; 1027 } 1028 old = fs->elo; 1029 if(!fsEpochLow(fs, low)) 1030 consPrint("\tfsEpochLow: %R\n"); 1031 else{ 1032 consPrint("\told: epoch%s %ud\n", force ? " -y" : "", old); 1033 consPrint("\tnew: epoch%s %ud\n", force ? " -y" : "", fs->elo); 1034 if(fs->elo < low) 1035 consPrint("\twarning: new low epoch < old low epoch\n"); 1036 if(force && remove) 1037 fsSnapshotRemove(fs); 1038 } 1039 1040 return 1; 1041 } 1042 1043 static int 1044 fsysCreate(Fsys* fsys, int argc, char* argv[]) 1045 { 1046 int r; 1047 ulong mode; 1048 char *elem, *p, *path; 1049 char *usage = "usage: [fsys name] create path uid gid perm"; 1050 DirEntry de; 1051 File *file, *parent; 1052 1053 ARGBEGIN{ 1054 default: 1055 return cliError(usage); 1056 }ARGEND 1057 if(argc != 4) 1058 return cliError(usage); 1059 1060 if(!fsysParseMode(argv[3], &mode)) 1061 return cliError(usage); 1062 if(mode&ModeSnapshot) 1063 return cliError("create - cannot create with snapshot bit set"); 1064 1065 if(strcmp(argv[1], uidnoworld) == 0) 1066 return cliError("permission denied"); 1067 1068 vtRLock(fsys->fs->elk); 1069 path = vtStrDup(argv[0]); 1070 if((p = strrchr(path, '/')) != nil){ 1071 *p++ = '\0'; 1072 elem = p; 1073 p = path; 1074 if(*p == '\0') 1075 p = "/"; 1076 } 1077 else{ 1078 p = "/"; 1079 elem = path; 1080 } 1081 1082 r = 0; 1083 if((parent = fileOpen(fsys->fs, p)) == nil) 1084 goto out; 1085 1086 file = fileCreate(parent, elem, mode, argv[1]); 1087 fileDecRef(parent); 1088 if(file == nil){ 1089 vtSetError("create %s/%s: %R", p, elem); 1090 goto out; 1091 } 1092 1093 if(!fileGetDir(file, &de)){ 1094 vtSetError("stat failed after create: %R"); 1095 goto out1; 1096 } 1097 1098 if(strcmp(de.gid, argv[2]) != 0){ 1099 vtMemFree(de.gid); 1100 de.gid = vtStrDup(argv[2]); 1101 if(!fileSetDir(file, &de, argv[1])){ 1102 vtSetError("wstat failed after create: %R"); 1103 goto out2; 1104 } 1105 } 1106 r = 1; 1107 1108 out2: 1109 deCleanup(&de); 1110 out1: 1111 fileDecRef(file); 1112 out: 1113 vtMemFree(path); 1114 vtRUnlock(fsys->fs->elk); 1115 1116 return r; 1117 } 1118 1119 static void 1120 fsysPrintStat(char *prefix, char *file, DirEntry *de) 1121 { 1122 char buf[64]; 1123 1124 if(prefix == nil) 1125 prefix = ""; 1126 consPrint("%sstat %q %q %q %q %s %llud\n", prefix, 1127 file, de->elem, de->uid, de->gid, fsysModeString(de->mode, buf), de->size); 1128 } 1129 1130 static int 1131 fsysStat(Fsys* fsys, int argc, char* argv[]) 1132 { 1133 int i; 1134 File *f; 1135 DirEntry de; 1136 char *usage = "usage: [fsys name] stat files..."; 1137 1138 ARGBEGIN{ 1139 default: 1140 return cliError(usage); 1141 }ARGEND 1142 1143 if(argc == 0) 1144 return cliError(usage); 1145 1146 vtRLock(fsys->fs->elk); 1147 for(i=0; i<argc; i++){ 1148 if((f = fileOpen(fsys->fs, argv[i])) == nil){ 1149 consPrint("%s: %R\n"); 1150 continue; 1151 } 1152 if(!fileGetDir(f, &de)){ 1153 consPrint("%s: %R\n"); 1154 fileDecRef(f); 1155 continue; 1156 } 1157 fsysPrintStat("\t", argv[i], &de); 1158 deCleanup(&de); 1159 fileDecRef(f); 1160 } 1161 vtRUnlock(fsys->fs->elk); 1162 return 1; 1163 } 1164 1165 static int 1166 fsysWstat(Fsys *fsys, int argc, char* argv[]) 1167 { 1168 File *f; 1169 char *p; 1170 DirEntry de; 1171 char *usage = "usage: [fsys name] wstat file elem uid gid mode length\n" 1172 "\tuse - for any field to mean don't change"; 1173 1174 ARGBEGIN{ 1175 default: 1176 return cliError(usage); 1177 }ARGEND 1178 1179 if(argc != 6) 1180 return cliError(usage); 1181 1182 vtRLock(fsys->fs->elk); 1183 if((f = fileOpen(fsys->fs, argv[0])) == nil){ 1184 vtSetError("console wstat - walk - %R"); 1185 vtRUnlock(fsys->fs->elk); 1186 return 0; 1187 } 1188 if(!fileGetDir(f, &de)){ 1189 vtSetError("console wstat - stat - %R"); 1190 fileDecRef(f); 1191 vtRUnlock(fsys->fs->elk); 1192 return 0; 1193 } 1194 fsysPrintStat("\told: w", argv[0], &de); 1195 1196 if(strcmp(argv[1], "-") != 0){ 1197 if(!validFileName(argv[1])){ 1198 vtSetError("console wstat - bad elem"); 1199 goto error; 1200 } 1201 vtMemFree(de.elem); 1202 de.elem = vtStrDup(argv[1]); 1203 } 1204 if(strcmp(argv[2], "-") != 0){ 1205 if(!validUserName(argv[2])){ 1206 vtSetError("console wstat - bad uid"); 1207 goto error; 1208 } 1209 vtMemFree(de.uid); 1210 de.uid = vtStrDup(argv[2]); 1211 } 1212 if(strcmp(argv[3], "-") != 0){ 1213 if(!validUserName(argv[3])){ 1214 vtSetError("console wstat - bad gid"); 1215 goto error; 1216 } 1217 vtMemFree(de.gid); 1218 de.gid = vtStrDup(argv[3]); 1219 } 1220 if(strcmp(argv[4], "-") != 0){ 1221 if(!fsysParseMode(argv[4], &de.mode)){ 1222 vtSetError("console wstat - bad mode"); 1223 goto error; 1224 } 1225 } 1226 if(strcmp(argv[5], "-") != 0){ 1227 de.size = strtoull(argv[5], &p, 0); 1228 if(argv[5][0] == '\0' || *p != '\0' || (vlong)de.size < 0){ 1229 vtSetError("console wstat - bad length"); 1230 goto error; 1231 } 1232 } 1233 1234 if(!fileSetDir(f, &de, uidadm)){ 1235 vtSetError("console wstat - %R"); 1236 goto error; 1237 } 1238 deCleanup(&de); 1239 1240 if(!fileGetDir(f, &de)){ 1241 vtSetError("console wstat - stat2 - %R"); 1242 goto error; 1243 } 1244 fsysPrintStat("\tnew: w", argv[0], &de); 1245 deCleanup(&de); 1246 fileDecRef(f); 1247 vtRUnlock(fsys->fs->elk); 1248 1249 return 1; 1250 1251 error: 1252 deCleanup(&de); /* okay to do this twice */ 1253 fileDecRef(f); 1254 vtRUnlock(fsys->fs->elk); 1255 return 0; 1256 } 1257 1258 static void 1259 fsckClri(Fsck *fsck, char *name, MetaBlock *mb, int i, Block *b) 1260 { 1261 USED(name); 1262 1263 if((fsck->flags&DoClri) == 0) 1264 return; 1265 1266 mbDelete(mb, i); 1267 mbPack(mb); 1268 blockDirty(b); 1269 } 1270 1271 static void 1272 fsckClose(Fsck *fsck, Block *b, u32int epoch) 1273 { 1274 Label l; 1275 1276 if((fsck->flags&DoClose) == 0) 1277 return; 1278 l = b->l; 1279 if(l.state == BsFree || (l.state&BsClosed)){ 1280 consPrint("%#ux is already closed\n", b->addr); 1281 return; 1282 } 1283 if(epoch){ 1284 l.state |= BsClosed; 1285 l.epochClose = epoch; 1286 }else 1287 l.state = BsFree; 1288 1289 if(!blockSetLabel(b, &l, 0)) 1290 consPrint("%#ux setlabel: %R\n", b->addr); 1291 } 1292 1293 static void 1294 fsckClre(Fsck *fsck, Block *b, int offset) 1295 { 1296 Entry e; 1297 1298 if((fsck->flags&DoClre) == 0) 1299 return; 1300 if(offset<0 || offset*VtEntrySize >= fsck->bsize){ 1301 consPrint("bad clre\n"); 1302 return; 1303 } 1304 memset(&e, 0, sizeof e); 1305 entryPack(&e, b->data, offset); 1306 blockDirty(b); 1307 } 1308 1309 static void 1310 fsckClrp(Fsck *fsck, Block *b, int offset) 1311 { 1312 if((fsck->flags&DoClrp) == 0) 1313 return; 1314 if(offset<0 || offset*VtScoreSize >= fsck->bsize){ 1315 consPrint("bad clre\n"); 1316 return; 1317 } 1318 memmove(b->data+offset*VtScoreSize, vtZeroScore, VtScoreSize); 1319 blockDirty(b); 1320 } 1321 1322 static int 1323 fsysCheck(Fsys *fsys, int argc, char *argv[]) 1324 { 1325 int i, halting; 1326 char *usage = "usage: [fsys name] check [-v] [options]"; 1327 Fsck fsck; 1328 Block *b; 1329 Super super; 1330 1331 memset(&fsck, 0, sizeof fsck); 1332 fsck.fs = fsys->fs; 1333 fsck.clri = fsckClri; 1334 fsck.clre = fsckClre; 1335 fsck.clrp = fsckClrp; 1336 fsck.close = fsckClose; 1337 fsck.print = consPrint; 1338 1339 ARGBEGIN{ 1340 default: 1341 return cliError(usage); 1342 }ARGEND 1343 1344 for(i=0; i<argc; i++){ 1345 if(strcmp(argv[i], "pblock") == 0) 1346 fsck.printblocks = 1; 1347 else if(strcmp(argv[i], "pdir") == 0) 1348 fsck.printdirs = 1; 1349 else if(strcmp(argv[i], "pfile") == 0) 1350 fsck.printfiles = 1; 1351 else if(strcmp(argv[i], "bclose") == 0) 1352 fsck.flags |= DoClose; 1353 else if(strcmp(argv[i], "clri") == 0) 1354 fsck.flags |= DoClri; 1355 else if(strcmp(argv[i], "clre") == 0) 1356 fsck.flags |= DoClre; 1357 else if(strcmp(argv[i], "clrp") == 0) 1358 fsck.flags |= DoClrp; 1359 else if(strcmp(argv[i], "fix") == 0) 1360 fsck.flags |= DoClose|DoClri|DoClre|DoClrp; 1361 else if(strcmp(argv[i], "venti") == 0) 1362 fsck.useventi = 1; 1363 else if(strcmp(argv[i], "snapshot") == 0) 1364 fsck.walksnapshots = 1; 1365 else{ 1366 consPrint("unknown option '%s'\n", argv[i]); 1367 return cliError(usage); 1368 } 1369 } 1370 1371 halting = fsys->fs->halted==0; 1372 if(halting) 1373 fsHalt(fsys->fs); 1374 if(fsys->fs->arch){ 1375 b = superGet(fsys->fs->cache, &super); 1376 if(b == nil){ 1377 consPrint("could not load super block\n"); 1378 goto Out; 1379 } 1380 blockPut(b); 1381 if(super.current != NilBlock){ 1382 consPrint("cannot check fs while archiver is running; wait for it to finish\n"); 1383 goto Out; 1384 } 1385 } 1386 fsCheck(&fsck); 1387 consPrint("fsck: %d clri, %d clre, %d clrp, %d bclose\n", 1388 fsck.nclri, fsck.nclre, fsck.nclrp, fsck.nclose); 1389 Out: 1390 if(halting) 1391 fsUnhalt(fsys->fs); 1392 return 1; 1393 } 1394 1395 static int 1396 fsysVenti(char* name, int argc, char* argv[]) 1397 { 1398 int r; 1399 char *host; 1400 char *usage = "usage: [fsys name] venti [address]"; 1401 Fsys *fsys; 1402 1403 ARGBEGIN{ 1404 default: 1405 return cliError(usage); 1406 }ARGEND 1407 1408 if(argc == 0) 1409 host = nil; 1410 else if(argc == 1) 1411 host = argv[0]; 1412 else 1413 return cliError(usage); 1414 1415 if((fsys = _fsysGet(name)) == nil) 1416 return 0; 1417 1418 vtLock(fsys->lock); 1419 if(host == nil) 1420 host = fsys->venti; 1421 else{ 1422 vtMemFree(fsys->venti); 1423 if(host[0]) 1424 fsys->venti = vtStrDup(host); 1425 else{ 1426 host = nil; 1427 fsys->venti = nil; 1428 } 1429 } 1430 1431 /* already open: do a redial */ 1432 if(fsys->fs != nil){ 1433 if(fsys->session == nil){ 1434 vtSetError("file system was opened with -V"); 1435 r = 0; 1436 goto out; 1437 } 1438 r = 1; 1439 if(!vtRedial(fsys->session, host) 1440 || !vtConnect(fsys->session, 0)) 1441 r = 0; 1442 goto out; 1443 } 1444 1445 /* not yet open: try to dial */ 1446 if(fsys->session) 1447 vtClose(fsys->session); 1448 r = 1; 1449 if((fsys->session = vtDial(host, 0)) == nil 1450 || !vtConnect(fsys->session, 0)) 1451 r = 0; 1452 out: 1453 vtUnlock(fsys->lock); 1454 fsysPut(fsys); 1455 return r; 1456 } 1457 1458 static int 1459 fsysOpen(char* name, int argc, char* argv[]) 1460 { 1461 char *p, *host; 1462 Fsys *fsys; 1463 long ncache; 1464 int noauth, noventi, noperm, rflag, wstatallow; 1465 char *usage = "usage: fsys name open [-APVWr] [-c ncache]"; 1466 1467 ncache = 1000; 1468 noauth = noperm = wstatallow = noventi = 0; 1469 rflag = OReadWrite; 1470 1471 ARGBEGIN{ 1472 default: 1473 return cliError(usage); 1474 case 'A': 1475 noauth = 1; 1476 break; 1477 case 'P': 1478 noperm = 1; 1479 break; 1480 case 'V': 1481 noventi = 1; 1482 break; 1483 case 'W': 1484 wstatallow = 1; 1485 break; 1486 case 'c': 1487 p = ARGF(); 1488 if(p == nil) 1489 return cliError(usage); 1490 ncache = strtol(argv[0], &p, 0); 1491 if(ncache <= 0 || p == argv[0] || *p != '\0') 1492 return cliError(usage); 1493 break; 1494 case 'r': 1495 rflag = OReadOnly; 1496 break; 1497 }ARGEND 1498 if(argc) 1499 return cliError(usage); 1500 1501 if((fsys = _fsysGet(name)) == nil) 1502 return 0; 1503 1504 vtLock(fsys->lock); 1505 if(fsys->fs != nil){ 1506 vtSetError(EFsysBusy, fsys->name); 1507 vtUnlock(fsys->lock); 1508 fsysPut(fsys); 1509 return 0; 1510 } 1511 1512 if(noventi){ 1513 if(fsys->session){ 1514 vtClose(fsys->session); 1515 fsys->session = nil; 1516 } 1517 } 1518 else if(fsys->session == nil){ 1519 if(fsys->venti && fsys->venti[0]) 1520 host = fsys->venti; 1521 else 1522 host = nil; 1523 fsys->session = vtDial(host, 1); 1524 if(!vtConnect(fsys->session, nil) && !noventi) 1525 fprint(2, "warning: connecting to venti: %R\n"); 1526 } 1527 if((fsys->fs = fsOpen(fsys->dev, fsys->session, ncache, rflag)) == nil){ 1528 vtSetError("fsOpen: %R"); 1529 vtUnlock(fsys->lock); 1530 fsysPut(fsys); 1531 return 0; 1532 } 1533 fsys->noauth = noauth; 1534 fsys->noperm = noperm; 1535 fsys->wstatallow = wstatallow; 1536 vtUnlock(fsys->lock); 1537 fsysPut(fsys); 1538 1539 if(strcmp(name, "main") == 0) 1540 usersFileRead(nil); 1541 1542 return 1; 1543 } 1544 1545 static int 1546 fsysUnconfig(char* name, int argc, char* argv[]) 1547 { 1548 Fsys *fsys, **fp; 1549 char *usage = "usage: fsys name unconfig"; 1550 1551 ARGBEGIN{ 1552 default: 1553 return cliError(usage); 1554 }ARGEND 1555 if(argc) 1556 return cliError(usage); 1557 1558 vtLock(sbox.lock); 1559 fp = &sbox.head; 1560 for(fsys = *fp; fsys != nil; fsys = fsys->next){ 1561 if(strcmp(fsys->name, name) == 0) 1562 break; 1563 fp = &fsys->next; 1564 } 1565 if(fsys == nil){ 1566 vtSetError(EFsysNotFound, name); 1567 vtUnlock(sbox.lock); 1568 return 0; 1569 } 1570 if(fsys->ref != 0 || fsys->fs != nil){ 1571 vtSetError(EFsysBusy, fsys->name); 1572 vtUnlock(sbox.lock); 1573 return 0; 1574 } 1575 *fp = fsys->next; 1576 vtUnlock(sbox.lock); 1577 1578 if(fsys->session != nil){ 1579 vtClose(fsys->session); 1580 vtFree(fsys->session); 1581 } 1582 if(fsys->venti != nil) 1583 vtMemFree(fsys->venti); 1584 if(fsys->dev != nil) 1585 vtMemFree(fsys->dev); 1586 if(fsys->name != nil) 1587 vtMemFree(fsys->name); 1588 vtMemFree(fsys); 1589 1590 return 1; 1591 } 1592 1593 static int 1594 fsysConfig(char* name, int argc, char* argv[]) 1595 { 1596 Fsys *fsys; 1597 char *usage = "usage: fsys name config dev"; 1598 1599 ARGBEGIN{ 1600 default: 1601 return cliError(usage); 1602 }ARGEND 1603 if(argc != 1) 1604 return cliError(usage); 1605 1606 if((fsys = _fsysGet(argv[0])) != nil){ 1607 vtLock(fsys->lock); 1608 if(fsys->fs != nil){ 1609 vtSetError(EFsysBusy, fsys->name); 1610 vtUnlock(fsys->lock); 1611 fsysPut(fsys); 1612 return 0; 1613 } 1614 vtMemFree(fsys->dev); 1615 fsys->dev = vtStrDup(argv[0]); 1616 vtUnlock(fsys->lock); 1617 } 1618 else if((fsys = fsysAlloc(name, argv[0])) == nil) 1619 return 0; 1620 1621 fsysPut(fsys); 1622 1623 return 1; 1624 } 1625 1626 static struct { 1627 char* cmd; 1628 int (*f)(Fsys*, int, char**); 1629 int (*f1)(char*, int, char**); 1630 } fsyscmd[] = { 1631 { "close", fsysClose, }, 1632 { "config", nil, fsysConfig, }, 1633 { "open", nil, fsysOpen, }, 1634 { "unconfig", nil, fsysUnconfig, }, 1635 { "venti", nil, fsysVenti, }, 1636 1637 { "bfree", fsysBfree, }, 1638 { "block", fsysBlock, }, 1639 { "check", fsysCheck, }, 1640 { "clre", fsysClre, }, 1641 { "clri", fsysClri, }, 1642 { "clrp", fsysClrp, }, 1643 { "create", fsysCreate, }, 1644 { "df", fsysDf, }, 1645 { "epoch", fsysEpoch, }, 1646 { "halt", fsysHalt, }, 1647 { "label", fsysLabel, }, 1648 { "remove", fsysRemove, }, 1649 { "snap", fsysSnap, }, 1650 { "snaptime", fsysSnapTime, }, 1651 { "snapclean", fsysSnapClean, }, 1652 { "stat", fsysStat, }, 1653 { "sync", fsysSync, }, 1654 { "unhalt", fsysUnhalt, }, 1655 { "wstat", fsysWstat, }, 1656 { "vac", fsysVac, }, 1657 1658 { nil, nil, }, 1659 }; 1660 1661 static int 1662 fsysXXX1(Fsys *fsys, int i, int argc, char* argv[]) 1663 { 1664 int r; 1665 1666 vtLock(fsys->lock); 1667 if(fsys->fs == nil){ 1668 vtUnlock(fsys->lock); 1669 vtSetError(EFsysNotOpen, fsys->name); 1670 return 0; 1671 } 1672 1673 if(fsys->fs->halted 1674 && fsyscmd[i].f != fsysUnhalt && fsyscmd[i].f != fsysCheck){ 1675 vtSetError("file system %s is halted", fsys->name); 1676 vtUnlock(fsys->lock); 1677 return 0; 1678 } 1679 1680 r = (*fsyscmd[i].f)(fsys, argc, argv); 1681 vtUnlock(fsys->lock); 1682 return r; 1683 } 1684 1685 static int 1686 fsysXXX(char* name, int argc, char* argv[]) 1687 { 1688 int i, r; 1689 Fsys *fsys; 1690 1691 for(i = 0; fsyscmd[i].cmd != nil; i++){ 1692 if(strcmp(fsyscmd[i].cmd, argv[0]) == 0) 1693 break; 1694 } 1695 1696 if(fsyscmd[i].cmd == nil){ 1697 vtSetError("unknown command - '%s'", argv[0]); 1698 return 0; 1699 } 1700 1701 /* some commands want the name... */ 1702 if(fsyscmd[i].f1 != nil){ 1703 if(strcmp(name, FsysAll) == 0){ 1704 vtSetError("cannot use fsys %#q with %#q command", FsysAll, argv[0]); 1705 return 0; 1706 } 1707 return (*fsyscmd[i].f1)(name, argc, argv); 1708 } 1709 1710 /* ... but most commands want the Fsys */ 1711 if(strcmp(name, FsysAll) == 0){ 1712 r = 1; 1713 vtRLock(sbox.lock); 1714 for(fsys = sbox.head; fsys != nil; fsys = fsys->next){ 1715 fsys->ref++; 1716 r = fsysXXX1(fsys, i, argc, argv) && r; 1717 fsys->ref--; 1718 } 1719 vtRUnlock(sbox.lock); 1720 }else{ 1721 if((fsys = _fsysGet(name)) == nil) 1722 return 0; 1723 r = fsysXXX1(fsys, i, argc, argv); 1724 fsysPut(fsys); 1725 } 1726 return r; 1727 } 1728 1729 static int 1730 cmdFsysXXX(int argc, char* argv[]) 1731 { 1732 char *name; 1733 1734 if((name = sbox.curfsys) == nil){ 1735 vtSetError(EFsysNoCurrent, argv[0]); 1736 return 0; 1737 } 1738 1739 return fsysXXX(name, argc, argv); 1740 } 1741 1742 static int 1743 cmdFsys(int argc, char* argv[]) 1744 { 1745 Fsys *fsys; 1746 char *usage = "usage: fsys [name ...]"; 1747 1748 ARGBEGIN{ 1749 default: 1750 return cliError(usage); 1751 }ARGEND 1752 1753 if(argc == 0){ 1754 vtRLock(sbox.lock); 1755 for(fsys = sbox.head; fsys != nil; fsys = fsys->next) 1756 consPrint("\t%s\n", fsys->name); 1757 vtRUnlock(sbox.lock); 1758 return 1; 1759 } 1760 if(argc == 1){ 1761 fsys = nil; 1762 if(strcmp(argv[0], FsysAll) != 0 && (fsys = fsysGet(argv[0])) == nil) 1763 return 0; 1764 sbox.curfsys = vtStrDup(argv[0]); 1765 consPrompt(sbox.curfsys); 1766 if(fsys) 1767 fsysPut(fsys); 1768 return 1; 1769 } 1770 1771 return fsysXXX(argv[0], argc-1, argv+1); 1772 } 1773 1774 int 1775 fsysInit(void) 1776 { 1777 int i; 1778 1779 fmtinstall('H', encodefmt); 1780 fmtinstall('V', scoreFmt); 1781 fmtinstall('R', vtErrFmt); 1782 fmtinstall('L', labelFmt); 1783 1784 sbox.lock = vtLockAlloc(); 1785 1786 cliAddCmd("fsys", cmdFsys); 1787 for(i = 0; fsyscmd[i].cmd != nil; i++){ 1788 if(fsyscmd[i].f != nil) 1789 cliAddCmd(fsyscmd[i].cmd, cmdFsysXXX); 1790 } 1791 /* the venti cmd is special: the fs can be either open or closed */ 1792 cliAddCmd("venti", cmdFsysXXX); 1793 cliAddCmd("printconfig", cmdPrintConfig); 1794 1795 return 1; 1796 } 1797