1 /* 2 * Copyright (c) 1980, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)pass3.c 8.2 (Berkeley) 4/27/95 30 * $FreeBSD: src/sbin/fsck/pass3.c,v 1.7.2.1 2001/01/23 23:11:07 iedowse Exp $ 31 * $DragonFly: src/sbin/fsck/pass3.c,v 1.6 2006/10/12 04:04:03 dillon Exp $ 32 */ 33 34 #include <sys/param.h> 35 36 #include <vfs/ufs/dinode.h> 37 #include <vfs/ufs/dir.h> 38 #include <vfs/ufs/fs.h> 39 40 #include <string.h> 41 42 #include "fsck.h" 43 44 void 45 pass3(void) 46 { 47 struct inoinfo *inp; 48 int loopcnt, inpindex, state; 49 ufs1_ino_t orphan; 50 struct inodesc idesc; 51 char namebuf[MAXNAMLEN+1]; 52 53 for (inpindex = inplast - 1; inpindex >= 0; inpindex--) { 54 if (got_siginfo) { 55 printf("%s: phase 3: dir %ld of %ld (%d%%)\n", cdevname, 56 inplast - inpindex - 1, inplast, 57 (int)((inplast - inpindex - 1) * 100 / inplast)); 58 got_siginfo = 0; 59 } 60 inp = inpsort[inpindex]; 61 state = inoinfo(inp->i_number)->ino_state; 62 if (inp->i_number == ROOTINO || 63 (inp->i_parent != 0 && state != DSTATE)) 64 continue; 65 if (state == DCLEAR) 66 continue; 67 /* 68 * If we are running with soft updates and we come 69 * across unreferenced directories, we just leave 70 * them in DSTATE which will cause them to be pitched 71 * in pass 4. 72 */ 73 if (preen && resolved && usedsoftdep && state == DSTATE) { 74 if (inp->i_dotdot >= ROOTINO) 75 inoinfo(inp->i_dotdot)->ino_linkcnt++; 76 continue; 77 } 78 for (loopcnt = 0; ; loopcnt++) { 79 orphan = inp->i_number; 80 if (inp->i_parent == 0 || 81 inoinfo(inp->i_parent)->ino_state != DSTATE || 82 loopcnt > countdirs) 83 break; 84 inp = getinoinfo(inp->i_parent); 85 } 86 if (loopcnt <= countdirs) { 87 if (linkup(orphan, inp->i_dotdot, NULL)) { 88 inp->i_parent = inp->i_dotdot = lfdir; 89 inoinfo(lfdir)->ino_linkcnt--; 90 } 91 inoinfo(orphan)->ino_state = DFOUND; 92 propagate(); 93 continue; 94 } 95 pfatal("ORPHANED DIRECTORY LOOP DETECTED I=%lu", orphan); 96 if (reply("RECONNECT") == 0) 97 continue; 98 memset(&idesc, 0, sizeof(struct inodesc)); 99 idesc.id_type = DATA; 100 idesc.id_number = inp->i_parent; 101 idesc.id_parent = orphan; 102 idesc.id_func = findname; 103 idesc.id_name = namebuf; 104 if ((ckinode(ginode(inp->i_parent), &idesc) & FOUND) == 0) 105 pfatal("COULD NOT FIND NAME IN PARENT DIRECTORY"); 106 if (linkup(orphan, inp->i_parent, namebuf)) { 107 idesc.id_func = clearentry; 108 if (ckinode(ginode(inp->i_parent), &idesc) & FOUND) 109 inoinfo(orphan)->ino_linkcnt++; 110 inp->i_parent = inp->i_dotdot = lfdir; 111 inoinfo(lfdir)->ino_linkcnt--; 112 } 113 inoinfo(orphan)->ino_state = DFOUND; 114 propagate(); 115 } 116 } 117