11558Srgrimes/* 21558Srgrimes * Copyright (c) 1980, 1986, 1993 31558Srgrimes * The Regents of the University of California. All rights reserved. 41558Srgrimes * 51558Srgrimes * Redistribution and use in source and binary forms, with or without 61558Srgrimes * modification, are permitted provided that the following conditions 71558Srgrimes * are met: 81558Srgrimes * 1. Redistributions of source code must retain the above copyright 91558Srgrimes * notice, this list of conditions and the following disclaimer. 101558Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111558Srgrimes * notice, this list of conditions and the following disclaimer in the 121558Srgrimes * documentation and/or other materials provided with the distribution. 131558Srgrimes * 4. Neither the name of the University nor the names of its contributors 141558Srgrimes * may be used to endorse or promote products derived from this software 151558Srgrimes * without specific prior written permission. 161558Srgrimes * 171558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271558Srgrimes * SUCH DAMAGE. 281558Srgrimes */ 291558Srgrimes 30114589Sobrien#if 0 311558Srgrimes#ifndef lint 3223675Speterstatic const char sccsid[] = "@(#)dir.c 8.8 (Berkeley) 4/28/95"; 33114589Sobrien#endif /* not lint */ 3441477Sjulian#endif 35114589Sobrien#include <sys/cdefs.h> 36114589Sobrien__FBSDID("$FreeBSD$"); 371558Srgrimes 381558Srgrimes#include <sys/param.h> 3941474Sjulian#include <sys/time.h> 4074556Smckusick#include <sys/sysctl.h> 4123675Speter 421558Srgrimes#include <ufs/ufs/dinode.h> 431558Srgrimes#include <ufs/ufs/dir.h> 441558Srgrimes#include <ufs/ffs/fs.h> 4523796Sbde 4623675Speter#include <err.h> 471558Srgrimes#include <string.h> 4823675Speter 491558Srgrimes#include "fsck.h" 501558Srgrimes 51260178Sscottlstatic struct dirtemplate emptydir = { 5274556Smckusick 0, DIRBLKSIZ, DT_UNKNOWN, 0, "", 5374556Smckusick 0, 0, DT_UNKNOWN, 0, "" 5474556Smckusick}; 55260178Sscottlstatic struct dirtemplate dirhead = { 561558Srgrimes 0, 12, DT_DIR, 1, ".", 571558Srgrimes 0, DIRBLKSIZ - 12, DT_DIR, 2, ".." 581558Srgrimes}; 591558Srgrimes 6092839Simpstatic int chgino(struct inodesc *); 6192839Simpstatic int dircheck(struct inodesc *, struct direct *); 6298542Smckusickstatic int expanddir(union dinode *dp, char *name); 6392839Simpstatic void freedir(ino_t ino, ino_t parent); 6492839Simpstatic struct direct *fsck_readdir(struct inodesc *); 6598542Smckusickstatic struct bufarea *getdirblk(ufs2_daddr_t blkno, long size); 6692839Simpstatic int lftempname(char *bufp, ino_t ino); 6792839Simpstatic int mkentry(struct inodesc *); 681558Srgrimes 691558Srgrimes/* 701558Srgrimes * Propagate connected state through the tree. 711558Srgrimes */ 727585Sbdevoid 7392839Simppropagate(void) 741558Srgrimes{ 7592806Sobrien struct inoinfo **inpp, *inp; 761558Srgrimes struct inoinfo **inpend; 771558Srgrimes long change; 781558Srgrimes 791558Srgrimes inpend = &inpsort[inplast]; 801558Srgrimes do { 811558Srgrimes change = 0; 821558Srgrimes for (inpp = inpsort; inpp < inpend; inpp++) { 831558Srgrimes inp = *inpp; 841558Srgrimes if (inp->i_parent == 0) 851558Srgrimes continue; 8641474Sjulian if (inoinfo(inp->i_parent)->ino_state == DFOUND && 87136281Struckman INO_IS_DUNFOUND(inp->i_number)) { 8841474Sjulian inoinfo(inp->i_number)->ino_state = DFOUND; 891558Srgrimes change++; 901558Srgrimes } 911558Srgrimes } 921558Srgrimes } while (change > 0); 931558Srgrimes} 941558Srgrimes 951558Srgrimes/* 961558Srgrimes * Scan each entry in a directory block. 971558Srgrimes */ 987585Sbdeint 9992839Simpdirscan(struct inodesc *idesc) 1001558Srgrimes{ 10192806Sobrien struct direct *dp; 10292806Sobrien struct bufarea *bp; 10374556Smckusick u_int dsize, n; 1041558Srgrimes long blksiz; 1051558Srgrimes char dbuf[DIRBLKSIZ]; 1061558Srgrimes 1071558Srgrimes if (idesc->id_type != DATA) 10823675Speter errx(EEXIT, "wrong type to dirscan %d", idesc->id_type); 1091558Srgrimes if (idesc->id_entryno == 0 && 1101558Srgrimes (idesc->id_filesize & (DIRBLKSIZ - 1)) != 0) 1111558Srgrimes idesc->id_filesize = roundup(idesc->id_filesize, DIRBLKSIZ); 1121558Srgrimes blksiz = idesc->id_numfrags * sblock.fs_fsize; 1131558Srgrimes if (chkrange(idesc->id_blkno, idesc->id_numfrags)) { 1141558Srgrimes idesc->id_filesize -= blksiz; 1151558Srgrimes return (SKIP); 1161558Srgrimes } 1171558Srgrimes idesc->id_loc = 0; 1181558Srgrimes for (dp = fsck_readdir(idesc); dp != NULL; dp = fsck_readdir(idesc)) { 1191558Srgrimes dsize = dp->d_reclen; 12041474Sjulian if (dsize > sizeof(dbuf)) 12141474Sjulian dsize = sizeof(dbuf); 12223675Speter memmove(dbuf, dp, (size_t)dsize); 1231558Srgrimes idesc->id_dirp = (struct direct *)dbuf; 1241558Srgrimes if ((n = (*idesc->id_func)(idesc)) & ALTERED) { 1251558Srgrimes bp = getdirblk(idesc->id_blkno, blksiz); 12623675Speter memmove(bp->b_un.b_buf + idesc->id_loc - dsize, dbuf, 1271558Srgrimes (size_t)dsize); 1281558Srgrimes dirty(bp); 1291558Srgrimes sbdirty(); 130260178Sscottl rerun = 1; 1311558Srgrimes } 1328871Srgrimes if (n & STOP) 1331558Srgrimes return (n); 1341558Srgrimes } 1351558Srgrimes return (idesc->id_filesize > 0 ? KEEPON : STOP); 1361558Srgrimes} 1371558Srgrimes 1381558Srgrimes/* 1391558Srgrimes * get next entry in a directory. 1401558Srgrimes */ 14123675Speterstatic struct direct * 14292839Simpfsck_readdir(struct inodesc *idesc) 1431558Srgrimes{ 14492806Sobrien struct direct *dp, *ndp; 14592806Sobrien struct bufarea *bp; 1461558Srgrimes long size, blksiz, fix, dploc; 1471558Srgrimes 1481558Srgrimes blksiz = idesc->id_numfrags * sblock.fs_fsize; 1491558Srgrimes bp = getdirblk(idesc->id_blkno, blksiz); 1501558Srgrimes if (idesc->id_loc % DIRBLKSIZ == 0 && idesc->id_filesize > 0 && 1511558Srgrimes idesc->id_loc < blksiz) { 1521558Srgrimes dp = (struct direct *)(bp->b_un.b_buf + idesc->id_loc); 1531558Srgrimes if (dircheck(idesc, dp)) 1541558Srgrimes goto dpok; 15523675Speter if (idesc->id_fix == IGNORE) 15623675Speter return (0); 1571558Srgrimes fix = dofix(idesc, "DIRECTORY CORRUPTED"); 1581558Srgrimes bp = getdirblk(idesc->id_blkno, blksiz); 1591558Srgrimes dp = (struct direct *)(bp->b_un.b_buf + idesc->id_loc); 1601558Srgrimes dp->d_reclen = DIRBLKSIZ; 1611558Srgrimes dp->d_ino = 0; 1621558Srgrimes dp->d_type = 0; 1631558Srgrimes dp->d_namlen = 0; 1641558Srgrimes dp->d_name[0] = '\0'; 1651558Srgrimes if (fix) 1661558Srgrimes dirty(bp); 1671558Srgrimes idesc->id_loc += DIRBLKSIZ; 1681558Srgrimes idesc->id_filesize -= DIRBLKSIZ; 1691558Srgrimes return (dp); 1701558Srgrimes } 1711558Srgrimesdpok: 1721558Srgrimes if (idesc->id_filesize <= 0 || idesc->id_loc >= blksiz) 1731558Srgrimes return NULL; 1741558Srgrimes dploc = idesc->id_loc; 1751558Srgrimes dp = (struct direct *)(bp->b_un.b_buf + dploc); 1761558Srgrimes idesc->id_loc += dp->d_reclen; 1771558Srgrimes idesc->id_filesize -= dp->d_reclen; 1781558Srgrimes if ((idesc->id_loc % DIRBLKSIZ) == 0) 1791558Srgrimes return (dp); 1801558Srgrimes ndp = (struct direct *)(bp->b_un.b_buf + idesc->id_loc); 1811558Srgrimes if (idesc->id_loc < blksiz && idesc->id_filesize > 0 && 1821558Srgrimes dircheck(idesc, ndp) == 0) { 1831558Srgrimes size = DIRBLKSIZ - (idesc->id_loc % DIRBLKSIZ); 1841558Srgrimes idesc->id_loc += size; 1851558Srgrimes idesc->id_filesize -= size; 18623675Speter if (idesc->id_fix == IGNORE) 18723675Speter return (0); 1881558Srgrimes fix = dofix(idesc, "DIRECTORY CORRUPTED"); 1891558Srgrimes bp = getdirblk(idesc->id_blkno, blksiz); 1901558Srgrimes dp = (struct direct *)(bp->b_un.b_buf + dploc); 1911558Srgrimes dp->d_reclen += size; 1921558Srgrimes if (fix) 1931558Srgrimes dirty(bp); 1941558Srgrimes } 1951558Srgrimes return (dp); 1961558Srgrimes} 1971558Srgrimes 1981558Srgrimes/* 1991558Srgrimes * Verify that a directory entry is valid. 2001558Srgrimes * This is a superset of the checks made in the kernel. 2011558Srgrimes */ 20223675Speterstatic int 20392839Simpdircheck(struct inodesc *idesc, struct direct *dp) 2041558Srgrimes{ 205114589Sobrien size_t size; 20692806Sobrien char *cp; 207114589Sobrien u_char type; 208225338Sdelphij u_int8_t namlen; 2091558Srgrimes int spaceleft; 2101558Srgrimes 21123675Speter spaceleft = DIRBLKSIZ - (idesc->id_loc % DIRBLKSIZ); 21241474Sjulian if (dp->d_reclen == 0 || 21323675Speter dp->d_reclen > spaceleft || 21423675Speter (dp->d_reclen & 0x3) != 0) 21562668Smckusick goto bad; 21623675Speter if (dp->d_ino == 0) 21723675Speter return (1); 21896483Sphk size = DIRSIZ(0, dp); 21996483Sphk namlen = dp->d_namlen; 22096483Sphk type = dp->d_type; 22123675Speter if (dp->d_reclen < size || 22223675Speter idesc->id_filesize < size || 223225338Sdelphij namlen == 0 || 22423675Speter type > 15) 22562668Smckusick goto bad; 22623675Speter for (cp = dp->d_name, size = 0; size < namlen; size++) 22723675Speter if (*cp == '\0' || (*cp++ == '/')) 22862668Smckusick goto bad; 22923675Speter if (*cp != '\0') 23062668Smckusick goto bad; 23123675Speter return (1); 23262668Smckusickbad: 23362668Smckusick if (debug) 23462668Smckusick printf("Bad dir: ino %d reclen %d namlen %d type %d name %s\n", 23562668Smckusick dp->d_ino, dp->d_reclen, dp->d_namlen, dp->d_type, 23662668Smckusick dp->d_name); 23762668Smckusick return (0); 2381558Srgrimes} 2391558Srgrimes 2407585Sbdevoid 241100935Sphkdirerror(ino_t ino, const char *errmesg) 2421558Srgrimes{ 2431558Srgrimes 2441558Srgrimes fileerror(ino, ino, errmesg); 2451558Srgrimes} 2461558Srgrimes 2477585Sbdevoid 248100935Sphkfileerror(ino_t cwd, ino_t ino, const char *errmesg) 2491558Srgrimes{ 25098542Smckusick union dinode *dp; 2511558Srgrimes char pathbuf[MAXPATHLEN + 1]; 2521558Srgrimes 2531558Srgrimes pwarn("%s ", errmesg); 2541558Srgrimes pinode(ino); 2551558Srgrimes printf("\n"); 2561558Srgrimes getpathname(pathbuf, cwd, ino); 2571558Srgrimes if (ino < ROOTINO || ino > maxino) { 2581558Srgrimes pfatal("NAME=%s\n", pathbuf); 2591558Srgrimes return; 2601558Srgrimes } 2611558Srgrimes dp = ginode(ino); 2621558Srgrimes if (ftypeok(dp)) 2631558Srgrimes pfatal("%s=%s\n", 26498542Smckusick (DIP(dp, di_mode) & IFMT) == IFDIR ? "DIR" : "FILE", 26598542Smckusick pathbuf); 2661558Srgrimes else 2671558Srgrimes pfatal("NAME=%s\n", pathbuf); 2681558Srgrimes} 2691558Srgrimes 2707585Sbdevoid 27192839Simpadjust(struct inodesc *idesc, int lcnt) 2721558Srgrimes{ 27398542Smckusick union dinode *dp; 27441474Sjulian int saveresolved; 2751558Srgrimes 2761558Srgrimes dp = ginode(idesc->id_number); 27798542Smckusick if (DIP(dp, di_nlink) == lcnt) { 27841474Sjulian /* 27941474Sjulian * If we have not hit any unresolved problems, are running 280102231Strhodes * in preen mode, and are on a file system using soft updates, 28141474Sjulian * then just toss any partially allocated files. 28241474Sjulian */ 28374556Smckusick if (resolved && (preen || bkgrdflag) && usedsoftdep) { 28441474Sjulian clri(idesc, "UNREF", 1); 28541474Sjulian return; 28641474Sjulian } else { 28741474Sjulian /* 288102231Strhodes * The file system can be marked clean even if 28941474Sjulian * a file is not linked up, but is cleared. 29041474Sjulian * Hence, resolved should not be cleared when 29141474Sjulian * linkup is answered no, but clri is answered yes. 29241474Sjulian */ 29341474Sjulian saveresolved = resolved; 29441474Sjulian if (linkup(idesc->id_number, (ino_t)0, NULL) == 0) { 29541474Sjulian resolved = saveresolved; 29641474Sjulian clri(idesc, "UNREF", 0); 29741474Sjulian return; 29841474Sjulian } 29941474Sjulian /* 30041474Sjulian * Account for the new reference created by linkup(). 30141474Sjulian */ 30241474Sjulian dp = ginode(idesc->id_number); 30341474Sjulian lcnt--; 30441474Sjulian } 30541474Sjulian } 30641474Sjulian if (lcnt != 0) { 3071558Srgrimes pwarn("LINK COUNT %s", (lfdir == idesc->id_number) ? lfname : 30898542Smckusick ((DIP(dp, di_mode) & IFMT) == IFDIR ? "DIR" : "FILE")); 3091558Srgrimes pinode(idesc->id_number); 3101558Srgrimes printf(" COUNT %d SHOULD BE %d", 31198542Smckusick DIP(dp, di_nlink), DIP(dp, di_nlink) - lcnt); 31234266Sjulian if (preen || usedsoftdep) { 3131558Srgrimes if (lcnt < 0) { 3141558Srgrimes printf("\n"); 3151558Srgrimes pfatal("LINK COUNT INCREASING"); 3161558Srgrimes } 31734266Sjulian if (preen) 31834266Sjulian printf(" (ADJUSTED)\n"); 3191558Srgrimes } 3201558Srgrimes if (preen || reply("ADJUST") == 1) { 32174556Smckusick if (bkgrdflag == 0) { 322134589Sscottl DIP_SET(dp, di_nlink, DIP(dp, di_nlink) - lcnt); 32374556Smckusick inodirty(); 32474556Smckusick } else { 32574556Smckusick cmd.value = idesc->id_number; 32674556Smckusick cmd.size = -lcnt; 32774556Smckusick if (debug) 328100935Sphk printf("adjrefcnt ino %ld amt %lld\n", 329100935Sphk (long)cmd.value, 330100935Sphk (long long)cmd.size); 33174556Smckusick if (sysctl(adjrefcnt, MIBSIZE, 0, 0, 33274556Smckusick &cmd, sizeof cmd) == -1) 33374556Smckusick rwerror("ADJUST INODE", cmd.value); 33474556Smckusick } 3351558Srgrimes } 3361558Srgrimes } 3371558Srgrimes} 3381558Srgrimes 33923675Speterstatic int 34092839Simpmkentry(struct inodesc *idesc) 3411558Srgrimes{ 34292806Sobrien struct direct *dirp = idesc->id_dirp; 3431558Srgrimes struct direct newent; 3441558Srgrimes int newlen, oldlen; 3451558Srgrimes 3461558Srgrimes newent.d_namlen = strlen(idesc->id_name); 3471558Srgrimes newlen = DIRSIZ(0, &newent); 3481558Srgrimes if (dirp->d_ino != 0) 3491558Srgrimes oldlen = DIRSIZ(0, dirp); 3501558Srgrimes else 3511558Srgrimes oldlen = 0; 3521558Srgrimes if (dirp->d_reclen - oldlen < newlen) 3531558Srgrimes return (KEEPON); 3541558Srgrimes newent.d_reclen = dirp->d_reclen - oldlen; 3551558Srgrimes dirp->d_reclen = oldlen; 3561558Srgrimes dirp = (struct direct *)(((char *)dirp) + oldlen); 3571558Srgrimes dirp->d_ino = idesc->id_parent; /* ino to be entered is in id_parent */ 35823675Speter dirp->d_reclen = newent.d_reclen; 35996483Sphk dirp->d_type = inoinfo(idesc->id_parent)->ino_type; 36023675Speter dirp->d_namlen = newent.d_namlen; 36123675Speter memmove(dirp->d_name, idesc->id_name, (size_t)newent.d_namlen + 1); 3621558Srgrimes return (ALTERED|STOP); 3631558Srgrimes} 3641558Srgrimes 36523675Speterstatic int 36692839Simpchgino(struct inodesc *idesc) 3671558Srgrimes{ 36892806Sobrien struct direct *dirp = idesc->id_dirp; 3691558Srgrimes 37023675Speter if (memcmp(dirp->d_name, idesc->id_name, (int)dirp->d_namlen + 1)) 3711558Srgrimes return (KEEPON); 3721558Srgrimes dirp->d_ino = idesc->id_parent; 37396483Sphk dirp->d_type = inoinfo(idesc->id_parent)->ino_type; 3741558Srgrimes return (ALTERED|STOP); 3751558Srgrimes} 3761558Srgrimes 3777585Sbdeint 37892839Simplinkup(ino_t orphan, ino_t parentdir, char *name) 3791558Srgrimes{ 38098542Smckusick union dinode *dp; 3811558Srgrimes int lostdir; 3821558Srgrimes ino_t oldlfdir; 3831558Srgrimes struct inodesc idesc; 3841558Srgrimes char tempname[BUFSIZ]; 3851558Srgrimes 38623675Speter memset(&idesc, 0, sizeof(struct inodesc)); 3871558Srgrimes dp = ginode(orphan); 38898542Smckusick lostdir = (DIP(dp, di_mode) & IFMT) == IFDIR; 3891558Srgrimes pwarn("UNREF %s ", lostdir ? "DIR" : "FILE"); 3901558Srgrimes pinode(orphan); 39198542Smckusick if (preen && DIP(dp, di_size) == 0) 3921558Srgrimes return (0); 39374556Smckusick if (cursnapshot != 0) { 39474556Smckusick pfatal("FILE LINKUP IN SNAPSHOT"); 39574556Smckusick return (0); 39674556Smckusick } 3971558Srgrimes if (preen) 3981558Srgrimes printf(" (RECONNECTED)\n"); 3991558Srgrimes else 4001558Srgrimes if (reply("RECONNECT") == 0) 4011558Srgrimes return (0); 4021558Srgrimes if (lfdir == 0) { 4031558Srgrimes dp = ginode(ROOTINO); 404100935Sphk idesc.id_name = strdup(lfname); 4051558Srgrimes idesc.id_type = DATA; 4061558Srgrimes idesc.id_func = findino; 4071558Srgrimes idesc.id_number = ROOTINO; 4081558Srgrimes if ((ckinode(dp, &idesc) & FOUND) != 0) { 4091558Srgrimes lfdir = idesc.id_parent; 4101558Srgrimes } else { 4111558Srgrimes pwarn("NO lost+found DIRECTORY"); 4121558Srgrimes if (preen || reply("CREATE")) { 4131558Srgrimes lfdir = allocdir(ROOTINO, (ino_t)0, lfmode); 4141558Srgrimes if (lfdir != 0) { 4151558Srgrimes if (makeentry(ROOTINO, lfdir, lfname) != 0) { 41641474Sjulian numdirs++; 4171558Srgrimes if (preen) 4181558Srgrimes printf(" (CREATED)\n"); 4191558Srgrimes } else { 4201558Srgrimes freedir(lfdir, ROOTINO); 4211558Srgrimes lfdir = 0; 4221558Srgrimes if (preen) 4231558Srgrimes printf("\n"); 4241558Srgrimes } 4251558Srgrimes } 4261558Srgrimes } 4271558Srgrimes } 4281558Srgrimes if (lfdir == 0) { 4291558Srgrimes pfatal("SORRY. CANNOT CREATE lost+found DIRECTORY"); 4301558Srgrimes printf("\n\n"); 4311558Srgrimes return (0); 4321558Srgrimes } 4331558Srgrimes } 4341558Srgrimes dp = ginode(lfdir); 43598542Smckusick if ((DIP(dp, di_mode) & IFMT) != IFDIR) { 4361558Srgrimes pfatal("lost+found IS NOT A DIRECTORY"); 4371558Srgrimes if (reply("REALLOCATE") == 0) 4381558Srgrimes return (0); 4391558Srgrimes oldlfdir = lfdir; 4401558Srgrimes if ((lfdir = allocdir(ROOTINO, (ino_t)0, lfmode)) == 0) { 4411558Srgrimes pfatal("SORRY. CANNOT CREATE lost+found DIRECTORY\n\n"); 4421558Srgrimes return (0); 4431558Srgrimes } 4441558Srgrimes if ((changeino(ROOTINO, lfname, lfdir) & ALTERED) == 0) { 4451558Srgrimes pfatal("SORRY. CANNOT CREATE lost+found DIRECTORY\n\n"); 4461558Srgrimes return (0); 4471558Srgrimes } 4481558Srgrimes inodirty(); 4491558Srgrimes idesc.id_type = ADDR; 4501558Srgrimes idesc.id_func = pass4check; 4511558Srgrimes idesc.id_number = oldlfdir; 45241474Sjulian adjust(&idesc, inoinfo(oldlfdir)->ino_linkcnt + 1); 45341474Sjulian inoinfo(oldlfdir)->ino_linkcnt = 0; 4541558Srgrimes dp = ginode(lfdir); 4551558Srgrimes } 45641474Sjulian if (inoinfo(lfdir)->ino_state != DFOUND) { 4571558Srgrimes pfatal("SORRY. NO lost+found DIRECTORY\n\n"); 4581558Srgrimes return (0); 4591558Srgrimes } 4601558Srgrimes (void)lftempname(tempname, orphan); 46141474Sjulian if (makeentry(lfdir, orphan, (name ? name : tempname)) == 0) { 4621558Srgrimes pfatal("SORRY. NO SPACE IN lost+found DIRECTORY"); 4631558Srgrimes printf("\n\n"); 4641558Srgrimes return (0); 4651558Srgrimes } 46641474Sjulian inoinfo(orphan)->ino_linkcnt--; 4671558Srgrimes if (lostdir) { 4681558Srgrimes if ((changeino(orphan, "..", lfdir) & ALTERED) == 0 && 4691558Srgrimes parentdir != (ino_t)-1) 4701558Srgrimes (void)makeentry(orphan, lfdir, ".."); 4711558Srgrimes dp = ginode(lfdir); 472134589Sscottl DIP_SET(dp, di_nlink, DIP(dp, di_nlink) + 1); 4731558Srgrimes inodirty(); 47441474Sjulian inoinfo(lfdir)->ino_linkcnt++; 47586514Siedowse pwarn("DIR I=%lu CONNECTED. ", (u_long)orphan); 47615699Snate if (parentdir != (ino_t)-1) { 47737236Sbde printf("PARENT WAS I=%lu\n", (u_long)parentdir); 47841477Sjulian /* 47941477Sjulian * The parent directory, because of the ordering 48041477Sjulian * guarantees, has had the link count incremented 48141477Sjulian * for the child, but no entry was made. This 48241477Sjulian * fixes the parent link count so that fsck does 48341477Sjulian * not need to be rerun. 48441477Sjulian */ 48541474Sjulian inoinfo(parentdir)->ino_linkcnt++; 48615699Snate } 4871558Srgrimes if (preen == 0) 4881558Srgrimes printf("\n"); 4891558Srgrimes } 4901558Srgrimes return (1); 4911558Srgrimes} 4921558Srgrimes 4931558Srgrimes/* 4941558Srgrimes * fix an entry in a directory. 4951558Srgrimes */ 4967585Sbdeint 497100935Sphkchangeino(ino_t dir, const char *name, ino_t newnum) 4981558Srgrimes{ 4991558Srgrimes struct inodesc idesc; 5001558Srgrimes 50123675Speter memset(&idesc, 0, sizeof(struct inodesc)); 5021558Srgrimes idesc.id_type = DATA; 5031558Srgrimes idesc.id_func = chgino; 5041558Srgrimes idesc.id_number = dir; 5051558Srgrimes idesc.id_fix = DONTKNOW; 506100935Sphk idesc.id_name = strdup(name); 5071558Srgrimes idesc.id_parent = newnum; /* new value for name */ 5081558Srgrimes return (ckinode(ginode(dir), &idesc)); 5091558Srgrimes} 5101558Srgrimes 5111558Srgrimes/* 5121558Srgrimes * make an entry in a directory 5131558Srgrimes */ 5147585Sbdeint 515100935Sphkmakeentry(ino_t parent, ino_t ino, const char *name) 5161558Srgrimes{ 51798542Smckusick union dinode *dp; 5181558Srgrimes struct inodesc idesc; 5191558Srgrimes char pathbuf[MAXPATHLEN + 1]; 5208871Srgrimes 5211558Srgrimes if (parent < ROOTINO || parent >= maxino || 5221558Srgrimes ino < ROOTINO || ino >= maxino) 5231558Srgrimes return (0); 52423675Speter memset(&idesc, 0, sizeof(struct inodesc)); 5251558Srgrimes idesc.id_type = DATA; 5261558Srgrimes idesc.id_func = mkentry; 5271558Srgrimes idesc.id_number = parent; 5281558Srgrimes idesc.id_parent = ino; /* this is the inode to enter */ 5291558Srgrimes idesc.id_fix = DONTKNOW; 530100935Sphk idesc.id_name = strdup(name); 5311558Srgrimes dp = ginode(parent); 53298542Smckusick if (DIP(dp, di_size) % DIRBLKSIZ) { 533134589Sscottl DIP_SET(dp, di_size, roundup(DIP(dp, di_size), DIRBLKSIZ)); 5341558Srgrimes inodirty(); 5351558Srgrimes } 5361558Srgrimes if ((ckinode(dp, &idesc) & ALTERED) != 0) 5371558Srgrimes return (1); 5381558Srgrimes getpathname(pathbuf, parent, parent); 5391558Srgrimes dp = ginode(parent); 5401558Srgrimes if (expanddir(dp, pathbuf) == 0) 5411558Srgrimes return (0); 5421558Srgrimes return (ckinode(dp, &idesc) & ALTERED); 5431558Srgrimes} 5441558Srgrimes 5451558Srgrimes/* 5461558Srgrimes * Attempt to expand the size of a directory 5471558Srgrimes */ 54823675Speterstatic int 54998542Smckusickexpanddir(union dinode *dp, char *name) 5501558Srgrimes{ 55198542Smckusick ufs2_daddr_t lastbn, newblk; 55292806Sobrien struct bufarea *bp; 5531558Srgrimes char *cp, firstblk[DIRBLKSIZ]; 5541558Srgrimes 55598542Smckusick lastbn = lblkno(&sblock, DIP(dp, di_size)); 55698542Smckusick if (lastbn >= NDADDR - 1 || DIP(dp, di_db[lastbn]) == 0 || 55798542Smckusick DIP(dp, di_size) == 0) 5581558Srgrimes return (0); 5591558Srgrimes if ((newblk = allocblk(sblock.fs_frag)) == 0) 5601558Srgrimes return (0); 561134589Sscottl DIP_SET(dp, di_db[lastbn + 1], DIP(dp, di_db[lastbn])); 562134589Sscottl DIP_SET(dp, di_db[lastbn], newblk); 563134589Sscottl DIP_SET(dp, di_size, DIP(dp, di_size) + sblock.fs_bsize); 564134589Sscottl DIP_SET(dp, di_blocks, DIP(dp, di_blocks) + btodb(sblock.fs_bsize)); 56598542Smckusick bp = getdirblk(DIP(dp, di_db[lastbn + 1]), 56698542Smckusick sblksize(&sblock, DIP(dp, di_size), lastbn + 1)); 5671558Srgrimes if (bp->b_errs) 5681558Srgrimes goto bad; 56923675Speter memmove(firstblk, bp->b_un.b_buf, DIRBLKSIZ); 5701558Srgrimes bp = getdirblk(newblk, sblock.fs_bsize); 5711558Srgrimes if (bp->b_errs) 5721558Srgrimes goto bad; 57323675Speter memmove(bp->b_un.b_buf, firstblk, DIRBLKSIZ); 5741558Srgrimes for (cp = &bp->b_un.b_buf[DIRBLKSIZ]; 5751558Srgrimes cp < &bp->b_un.b_buf[sblock.fs_bsize]; 5761558Srgrimes cp += DIRBLKSIZ) 57723675Speter memmove(cp, &emptydir, sizeof emptydir); 5781558Srgrimes dirty(bp); 57998542Smckusick bp = getdirblk(DIP(dp, di_db[lastbn + 1]), 58098542Smckusick sblksize(&sblock, DIP(dp, di_size), lastbn + 1)); 5811558Srgrimes if (bp->b_errs) 5821558Srgrimes goto bad; 58323675Speter memmove(bp->b_un.b_buf, &emptydir, sizeof emptydir); 5841558Srgrimes pwarn("NO SPACE LEFT IN %s", name); 5851558Srgrimes if (preen) 5861558Srgrimes printf(" (EXPANDED)\n"); 5871558Srgrimes else if (reply("EXPAND") == 0) 5881558Srgrimes goto bad; 5891558Srgrimes dirty(bp); 5901558Srgrimes inodirty(); 5911558Srgrimes return (1); 5921558Srgrimesbad: 593134589Sscottl DIP_SET(dp, di_db[lastbn], DIP(dp, di_db[lastbn + 1])); 594134589Sscottl DIP_SET(dp, di_db[lastbn + 1], 0); 595134589Sscottl DIP_SET(dp, di_size, DIP(dp, di_size) - sblock.fs_bsize); 596134589Sscottl DIP_SET(dp, di_blocks, DIP(dp, di_blocks) - btodb(sblock.fs_bsize)); 5971558Srgrimes freeblk(newblk, sblock.fs_frag); 5981558Srgrimes return (0); 5991558Srgrimes} 6001558Srgrimes 6011558Srgrimes/* 6021558Srgrimes * allocate a new directory 6031558Srgrimes */ 6047586Sbdeino_t 60592839Simpallocdir(ino_t parent, ino_t request, int mode) 6061558Srgrimes{ 6071558Srgrimes ino_t ino; 6081558Srgrimes char *cp; 60998542Smckusick union dinode *dp; 61063810Smckusick struct bufarea *bp; 61163810Smckusick struct inoinfo *inp; 6121558Srgrimes struct dirtemplate *dirp; 6131558Srgrimes 6141558Srgrimes ino = allocino(request, IFDIR|mode); 61596483Sphk dirp = &dirhead; 6161558Srgrimes dirp->dot_ino = ino; 6171558Srgrimes dirp->dotdot_ino = parent; 6181558Srgrimes dp = ginode(ino); 61998542Smckusick bp = getdirblk(DIP(dp, di_db[0]), sblock.fs_fsize); 6201558Srgrimes if (bp->b_errs) { 6211558Srgrimes freeino(ino); 6221558Srgrimes return (0); 6231558Srgrimes } 62423675Speter memmove(bp->b_un.b_buf, dirp, sizeof(struct dirtemplate)); 6251558Srgrimes for (cp = &bp->b_un.b_buf[DIRBLKSIZ]; 6261558Srgrimes cp < &bp->b_un.b_buf[sblock.fs_fsize]; 6271558Srgrimes cp += DIRBLKSIZ) 62823675Speter memmove(cp, &emptydir, sizeof emptydir); 6291558Srgrimes dirty(bp); 630134589Sscottl DIP_SET(dp, di_nlink, 2); 6311558Srgrimes inodirty(); 6321558Srgrimes if (ino == ROOTINO) { 63398542Smckusick inoinfo(ino)->ino_linkcnt = DIP(dp, di_nlink); 6341558Srgrimes cacheino(dp, ino); 6351558Srgrimes return(ino); 6361558Srgrimes } 637136281Struckman if (!INO_IS_DVALID(parent)) { 6381558Srgrimes freeino(ino); 6391558Srgrimes return (0); 6401558Srgrimes } 6411558Srgrimes cacheino(dp, ino); 64263810Smckusick inp = getinoinfo(ino); 64363810Smckusick inp->i_parent = parent; 64463810Smckusick inp->i_dotdot = parent; 64541474Sjulian inoinfo(ino)->ino_state = inoinfo(parent)->ino_state; 64641474Sjulian if (inoinfo(ino)->ino_state == DSTATE) { 64798542Smckusick inoinfo(ino)->ino_linkcnt = DIP(dp, di_nlink); 64841474Sjulian inoinfo(parent)->ino_linkcnt++; 6491558Srgrimes } 6501558Srgrimes dp = ginode(parent); 651134589Sscottl DIP_SET(dp, di_nlink, DIP(dp, di_nlink) + 1); 6521558Srgrimes inodirty(); 6531558Srgrimes return (ino); 6541558Srgrimes} 6551558Srgrimes 6561558Srgrimes/* 6571558Srgrimes * free a directory inode 6581558Srgrimes */ 6597585Sbdestatic void 66092839Simpfreedir(ino_t ino, ino_t parent) 6611558Srgrimes{ 66298542Smckusick union dinode *dp; 6631558Srgrimes 6641558Srgrimes if (ino != parent) { 6651558Srgrimes dp = ginode(parent); 666134589Sscottl DIP_SET(dp, di_nlink, DIP(dp, di_nlink) - 1); 6671558Srgrimes inodirty(); 6681558Srgrimes } 6691558Srgrimes freeino(ino); 6701558Srgrimes} 6711558Srgrimes 6721558Srgrimes/* 6731558Srgrimes * generate a temporary name for the lost+found directory. 6741558Srgrimes */ 67523675Speterstatic int 67692839Simplftempname(char *bufp, ino_t ino) 6771558Srgrimes{ 67892806Sobrien ino_t in; 67992806Sobrien char *cp; 6801558Srgrimes int namlen; 6811558Srgrimes 6821558Srgrimes cp = bufp + 2; 6831558Srgrimes for (in = maxino; in > 0; in /= 10) 6841558Srgrimes cp++; 6851558Srgrimes *--cp = 0; 6861558Srgrimes namlen = cp - bufp; 6871558Srgrimes in = ino; 6881558Srgrimes while (cp > bufp) { 6891558Srgrimes *--cp = (in % 10) + '0'; 6901558Srgrimes in /= 10; 6911558Srgrimes } 6921558Srgrimes *cp = '#'; 6931558Srgrimes return (namlen); 6941558Srgrimes} 6951558Srgrimes 6961558Srgrimes/* 6971558Srgrimes * Get a directory block. 6981558Srgrimes * Insure that it is held until another is requested. 6991558Srgrimes */ 70023675Speterstatic struct bufarea * 70198542Smckusickgetdirblk(ufs2_daddr_t blkno, long size) 7021558Srgrimes{ 7031558Srgrimes 7041558Srgrimes if (pdirbp != 0) 7051558Srgrimes pdirbp->b_flags &= ~B_INUSE; 706247212Smckusick pdirbp = getdatablk(blkno, size, BT_DIRDATA); 7071558Srgrimes return (pdirbp); 7081558Srgrimes} 709