src/vol/listinodes.c

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 /*
  11
  12         System:         VICE-TWO
  13         Module:         listinodes.c
  14         Institution:    The Information Technology Center, Carnegie-Mellon University
  15
  16  */
  17
  18 #define ITC                     /* Required by inode.h */
  19
  20 #include <afsconfig.h>
  21 #include <afs/param.h>
  22
  23 #include <roken.h>
  24 #include <afs/opr.h>
  25
  26 #include <ctype.h>
  27
  28 #ifndef AFS_NAMEI_ENV
  29 #if defined(AFS_LINUX20_ENV)
  30 /* ListViceInodes
  31  *
  32  * Return codes:
  33  * 0 - success
  34  * -1 - Unable to read the inodes.
  35  * -2 - Unable to completely write temp file. Produces warning message in log.
  36  */
  37 int
  38 ListViceInodes(char *devname, char *mountedOn, FD_t inodeFile,
  39                afs_uint32 (*judgeInode) (), VolumeId judgeParam, int *forcep, int forceR,
  40                char *wpath, void *rock)
  41 {
  42     Log("ListViceInodes not implemented for this platform!\n");
  43     return -1;
  44 }
  45 #else
  46 #if !defined(AFS_SGI_ENV)
  47 #ifdef  AFS_OSF_ENV
  48 #include <ufs/fs.h>
  49 #else /* AFS_OSF_ENV */
  50 #ifdef AFS_VFSINCL_ENV
  51 #define VFS
  52 #ifdef    AFS_SUN5_ENV
  53 #include <sys/fs/ufs_fs.h>
  54 #else
  55 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
  56 #include <ufs/ufs/dinode.h>
  57 #include <ufs/ffs/fs.h>
  58 #define itod ino_to_fsba
  59 #else
  60 #include <ufs/fs.h>
  61 #endif
  62 #endif
  63 #else /* AFS_VFSINCL_ENV */
  64 #ifdef  AFS_AIX_ENV
  65 #include <sys/filsys.h>
  66 #else
  67 #include <sys/fs.h>
  68 #endif
  69 #endif /* AFS_VFSINCL_ENV */
  70 #endif /* AFS_OSF_ENV */
  71 #ifdef AFS_VFSINCL_ENV
  72 #include <sys/vnode.h>
  73 #ifdef    AFS_SUN5_ENV
  74 #include <sys/fs/ufs_inode.h>
  75 #else
  76 #if !defined(AFS_DARWIN_ENV)
  77 #include <ufs/inode.h>
  78 #endif
  79 #endif
  80 #else /* AFS_VFSINCL_ENV */
  81 #ifdef  AFS_OSF_ENV
  82 #include <ufs/inode.h>
  83 #else /* AFS_OSF_ENV */
  84 #include <sys/inode.h>
  85 #endif
  86 #endif /* AFS_VFSINCL_ENV */
  87 #endif /* AFS_SGI_ENV */
  88 #include <afs/osi_inode.h>
  89 #include <sys/file.h>
  90 #include <rx/xdr.h>
  91 #include <afs/afsint.h>
  92 #include "nfs.h"
  93 #include <afs/afssyscalls.h>
  94 #include "viceinode.h"
  95 #if defined (AFS_AIX_ENV) || defined (AFS_HPUX_ENV)
  96 #include <sys/ino.h>
  97 #endif
  98
  99 #include <rx/rx_queue.h>
 100
 101 #include "lock.h"
 102 #include "ihandle.h"
 103 #include "vnode.h"
 104 #include "volume.h"
 105 #include "volinodes.h"
 106 #include "partition.h"
 107 #include "fssync.h"
 108 #include "volume_inline.h"
 109
 110 /* Notice:  parts of this module have been cribbed from vfsck.c */
 111
 112 #define ROOTINODE       2
 113 static char *partition;
 114 int Testing=0;
 115 FD_t pfd;
 116
 117 #ifdef  AFS_AIX32_ENV
 118 #include <jfs/filsys.h>
 119
 120 #ifndef FSBSIZE
 121 #define FSBSIZE         (4096)  /* filesystem block size        */
 122 #define FSBSHIFT        (12)    /* log2(FSBSIZE)                */
 123 #define FSBMASK         (FSBSIZE - 1)   /* FSBSIZE mask                 */
 124
 125 #define MIN_FSIZE       DISKMAP_B       /* minimum fs size (FSblocks)   */
 126 #define LAST_RSVD_I     15      /* last reserved inode          */
 127 #endif
 128
 129 #ifndef INOPB
 130 /*
 131  * This will hopefully eventually make it into the system include files
 132  */
 133 #define INOPB           (FSBSIZE / sizeof (struct dinode))
 134 #endif
 135
 136 #ifdef AFS_AIX41_ENV
 137 int fragsize;
 138 int iagsize;
 139 int ag512;
 140 int agblocks;
 141 #endif /* AFS_AIX41_ENV */
 142
 143 /*
 144  XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
 145  XX This was lifted from some `com/cmd/fs/fshlpr_aix3/Fs.h', which indicated X
 146  XX a longing to see it make it into a readily accessible include file. XXXXXX
 147  XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
 148  *
 149  * itoo - inode number to offset within disk block
 150  */
 151 #undef itoo
 152 #define itoo(x)         (int) ((unsigned)(x) % INOPB)
 153
 154 int Bsize = FSBSIZE;            /* block size for this system                   */
 155 daddr_t fmax;                   /* total number of blocks n file system         */
 156 ino_t imax, inum;               /* total number of I-nodes in file system       */
 157
 158 static struct superblock fs;
 159 struct dinode *ginode();
 160
 161
 162 int
 163 ListViceInodes(char *devname, char *mountedOn, FD_t inodeFile,
 164                int (*judgeInode) (), VolumeId judgeParam, int *forcep, int forceR,
 165                char *wpath, void *rock)
 166 {
 167     char dev[50], rdev[51];
 168     struct stat status;
 169     struct dinode *p;
 170     struct ViceInodeInfo info;
 171     struct stat root_inode;
 172     int ninodes = 0, err = 0;
 173
 174     pfd = INVALID_FD;                   /* initialize so we don't close on error output below. */
 175     *forcep = 0;
 176     sync();
 177     sleep(1);                   /* simulate operator    */
 178     sync();
 179     sleep(1);
 180     sync();
 181     sleep(1);
 182
 183     partition = mountedOn;
 184     sprintf(dev, "/dev/%s", devname);
 185     sprintf(rdev, "/dev/r%s", devname);
 186
 187     if (stat(mountedOn, &root_inode) < 0) {
 188         Log("cannot stat: %s\n", mountedOn);
 189         return -1;
 190     }
 191
 192     if (root_inode.st_ino != ROOTDIR_I) {
 193         Log("%s is not root of a filesystem\n", mountedOn);
 194         return -1;
 195     }
 196
 197
 198     /*
 199      * done with the superblock, now try to read the raw device.
 200      */
 201     if (ReadSuper(&fs, dev) < 0)
 202         return -1;
 203
 204     switch (fs.s_fmod) {
 205     default:
 206     case FM_CLEAN:              /* clean and unmounted                  */
 207         Log("Most peculiar - Super blk in FM_CLEAN state!\n");
 208         goto out;
 209     case FM_MOUNT:              /* mounted cleanly                      */
 210         break;
 211
 212     case FM_MDIRTY:             /* dirty when mounted or commit fail    */
 213     case FM_LOGREDO:            /* log redo attempted but failed        */
 214         Log("File system %s is in a bad state.\n", rdev);
 215         Log("Call your IBM representative.\n");
 216         return -1;
 217     }
 218 #ifdef AFS_AIX42_ENV
 219     if (IsBigFilesFileSystem(&fs, (char *)0)) {
 220         Log("%s is a big files filesystem, can't salvage.\n", mountedOn);
 221         return -1;
 222     }
 223 #else
 224     if (strncmp(fs.s_magic, fsv3magic, strlen(fsv3magic)) != 0) {
 225 #ifdef  AFS_AIX41_ENV
 226         if ((strncmp(fs.s_magic, fsv3pmagic, strlen(fsv3pmagic)) != 0)
 227             || (fs.s_version != fsv3pvers)) {
 228             Log("Super block doesn't have the problem magic (%s vs v3magic %s v3pmagic %s)\n", fs.s_magic, fsv3magic, fsv3pmagic);
 229             return -1;
 230         }
 231 #else
 232         Log("Super block doesn't have the problem magic (%s vs v3magic %s)\n",
 233             fs.s_magic, fsv3magic);
 234         return -1;
 235 #endif
 236     }
 237 #endif
 238
 239 #ifdef AFS_AIX41_ENV
 240     fragsize = (fs.s_fragsize) ? fs.s_fragsize : FSBSIZE;
 241     iagsize = (fs.s_iagsize) ? fs.s_iagsize : fs.s_agsize;
 242     ag512 = fragsize * fs.s_agsize / 512;
 243     agblocks = fragsize * fs.s_agsize >> BSHIFT;
 244 #endif /* AFS_AIX41_ENV */
 245
 246     fmax = fs.s_fsize / (FSBSIZE / 512);        /* first invalid blk num */
 247
 248     pfd = OS_OPEN(rdev, O_RDONLY, 0666);
 249     if (pfd == INVALID_FD) {
 250         Log("Unable to open `%s' inode for reading\n", rdev);
 251         return -1;
 252     }
 253
 254     /*
 255      * calculate the maximum number of inodes possible
 256      */
 257 #ifdef AFS_AIX41_ENV
 258     imax = iagsize * (fs.s_fsize / ag512) - 1;
 259 #else /* AFS_AIX41_ENV */
 260     imax =
 261         ((fmax / fs.s_agsize +
 262           ((fmax % fs.s_agsize) >= fs.s_agsize / INOPB ? 1 : 0))
 263          * fs.s_agsize) - 1;
 264 #endif /* AFS_AIX41_ENV */
 265
 266     /*
 267      * check for "FORCESALVAGE" equivalent:
 268      *      LAST_RSVD_I is a vice inode, with dead beef, and
 269      *      di_nlink == 2 to indicate the FORCE.
 270      */
 271     opr_Verify(p = ginode(LAST_RSVD_I));
 272
 273     if (p->di_vicemagic == VICEMAGIC && p->di_vicep1 == 0xdeadbeef
 274         && p->di_nlink == 2) {
 275         *forcep = 1;
 276         idec(root_inode.st_dev, LAST_RSVD_I, 0xdeadbeef);
 277     }
 278
 279     for (inum = LAST_RSVD_I + 1; inum <= imax; ++inum) {
 280         if ((p = ginode(inum)) == NULL || p->di_vicemagic != VICEMAGIC
 281             || (p->di_mode & IFMT) != IFREG)
 282             continue;
 283
 284         info.inodeNumber = inum;
 285         info.byteCount = p->di_size;
 286         info.linkCount = p->di_nlink;
 287         info.u.param[0] = p->di_vicep1;
 288         info.u.param[1] = p->di_vicep2;
 289         info.u.param[2] = p->di_vicep3;
 290         info.u.param[3] = p->di_vicep4;
 291
 292         if (judgeInode && (*judgeInode) (&info, judgeParam, rock) == 0)
 293             continue;
 294
 295         if (inodeFile != INVALID_FD) {
 296             if (OS_WRITE(inodeFile, &info, sizeof(info)) != sizeof(info)) {
 297                 Log("Error writing inode file for partition %s\n", partition);
 298                 goto out;
 299             }
 300         }
 301         ++ninodes;
 302     }
 303
 304     if (inodeFile != INVALID_FD) {
 305         if (OS_SYNC(inodeFile) == -1) {
 306             Log("Unable to successfully fsync inode file for %s\n", partition);
 307             err = -2;
 308             goto out1;
 309         }
 310
 311         /*
 312          * Paranoia:  check that the file is really the right size
 313          */
 314         if (OS_SIZE(inodeFile) != ninodes * sizeof(struct ViceInodeInfo)) {
 315             Log("Wrong size (%d instead of %d) in inode file for %s\n",
 316                 status.st_size, ninodes * sizeof(struct ViceInodeInfo),
 317                 partition);
 318             err = -2;
 319             goto out1;
 320         }
 321     }
 322     OS_CLOSE(pfd);
 323     return 0;
 324
 325   out:
 326     err = -1;
 327   out1:
 328     if (pfd != INVALID_FD)
 329         OS_CLOSE(pfd);
 330
 331     return err;
 332 }
 333
 334 /* Read in the superblock for devName */
 335 int
 336 ReadSuper(struct superblock *fs, char *devName)
 337 {
 338     FD_t pfd;
 339
 340     pfd = OS_OPEN(devName, O_RDONLY, 0666);
 341     if (pfd == INVALID_FD) {
 342         Log("Unable to open inode on %s for reading superblock.\n", devName);
 343         return -1;
 344     }
 345
 346     if (bread(pfd, fs, SUPER_B, sizeof(struct superblock)) < 0) {
 347         Log("Unable to read superblock on %s.\n", devName);
 348         return -1;
 349     }
 350     OS_CLOSE(pfd);
 351     return (0);
 352 }
 353
 354 #ifdef AFS_AIX42_ENV
 355 /* IsBigFilesFileSystem returns 1 if it's a big files filesystem, 0 otherwise. */
 356 int
 357 IsBigFilesFileSystem(struct superblock *sb)
 358 {
 359     if ((strncmp(sb->s_magic, fsv3pmagic, 4) == 0)
 360         && (sb->s_version == fsbigfile)
 361         && (sb->s_bigexp))
 362         return 1;
 363     else
 364         return 0;
 365 }
 366 #endif
 367
 368 struct dinode *
 369 ginode(inum)
 370 {
 371     int ag;
 372     daddr_t pblk;
 373     struct dinode *dp;
 374     static char buf[FSBSIZE];
 375     static daddr_t last_blk = -1;
 376
 377 #ifdef AFS_AIX41_ENV
 378     ag = inum / iagsize;
 379     pblk =
 380         (ag ==
 381          0) ? INODES_B + inum / INOPB : ag * agblocks + (inum -
 382                                                          ag * iagsize) /
 383         INOPB;
 384 #else /* AFS_AIX41_ENV */
 385     ag = inum / fs.s_agsize;
 386     pblk =
 387         (ag ==
 388          0) ? INODES_B + inum / INOPB : ag * fs.s_agsize + (inum -
 389                                                             ag *
 390                                                             fs.s_agsize) /
 391         INOPB;
 392 #endif /* AFS_AIX41_ENV */
 393
 394     if (last_blk != pblk) {
 395         if (bread(pfd, buf, pblk, sizeof(buf)) < 0) {
 396             last_blk = -1;
 397             return 0;
 398         }
 399         last_blk = pblk;
 400     }
 401
 402     dp = (struct dinode *)buf;
 403     dp += itoo(inum);
 404     return (dp);
 405 }
 406
 407 #else /* !AFS_AIX31_ENV       */
 408
 409 #if defined(AFS_SGI_ENV)
 410
 411 /* libefs.h includes <assert.h>, which we don't want */
 412 #define __ASSERT_H__
 413
 414 #ifdef AFS_SGI_XFS_IOPS_ENV
 415 #include <afs/xfsattrs.h>
 416 /* xfs_ListViceInodes
 417  *
 418  * xfs_ListViceInodes verifies and correct the XFS namespace as it collects
 419  * the inode information. The name is required for the idec operation to work.
 420  * Steps 2 and 3 below are for the AFS_XFS_NAME_VERS == 1. If the name space
 421  * changes, the algorithm will need to change.
 422  * 1) If the parent inode number does not match the directory's inod number,
 423  *    change it in the attribute.
 424  * 2) If the unqifier in the attribute does not match the name, rename the
 425  *    file. This is done by doing an exclusive open, incrementing the tag
 426  *    number until a file can be created. If the tag changes, then the
 427  *    attribute will need updating.
 428  * 3) If the tag in the attribute does not match the name, change the
 429  *    attribute.
 430  * 4) Verify uid = RW volume id and gid = XFS_VICEMAGIC.
 431  *
 432  */
 433
 434 /* xfs_VerifyInode
 435  *
 436  * Does the verifications listed above.
 437  * We can't change the names until the readdir is complete, so we set the
 438  * rename flag if the file needs renaming.
 439  */
 440 int
 441 xfs_VerifyInode(char *dir, uint64_t pino, char *name, i_list_inode_t * info,
 442                 int *rename)
 443 {
 444     char path[1024];
 445     int vno;
 446     int update_pino = 0;
 447     int update_tag = 0;
 448     int update_chown = 0;
 449     int retCode = 0;
 450     char tmpName[32];
 451     int tag;
 452     afs_ino_str_t stmp;
 453
 454     *rename = 0;
 455     (void)sprintf(path, "%s/%s", dir, name);
 456     /* Verify uid and gid fields */
 457     if (info->ili_magic != XFS_VICEMAGIC) {
 458         Log("%s  magic for %s/%s (inode %s) from %d to %d\n",
 459             Testing ? "Would have changed" : "Changing", dir, name,
 460             PrintInode(stmp, info->ili_info.inodeNumber), info->ili_magic,
 461             XFS_VICEMAGIC);
 462         if (!Testing)
 463             update_chown = 1;
 464     }
 465
 466     vno = info->ili_info.param[0];
 467     if (info->ili_vno != AFS_XFS_VNO_CLIP(vno)) {
 468         Log("%s volume id for %s/%s (inode %s) from %d to %d\n",
 469             Testing ? "Would have changed" : "Changing", dir, name,
 470             PrintInode(stmp, info->ili_info.inodeNumber), info->ili_vno,
 471             AFS_XFS_VNO_CLIP(vno));
 472         if (!Testing)
 473             update_chown = 1;
 474     }
 475
 476     if (update_chown) {
 477         if (chown(path, AFS_XFS_VNO_CLIP(vno), XFS_VICEMAGIC) < 0) {
 478             Log("Can't chown %s to uid=%d, gid=0x%x\n", path,
 479                 AFS_XFS_VNO_CLIP(vno), XFS_VICEMAGIC);
 480             retCode = -1;
 481         }
 482     }
 483
 484     /* Check Parent inode number. */
 485     if (info->ili_pino != pino) {
 486         afs_ino_str_t sino, sipino, spino;
 487         (void)PrintInode(sino, info->ili_info.inodeNumber);
 488         (void)PrintInode(sipino, info->ili_pino);
 489         (void)PrintInode(spino, pino);
 490         Log("%s parent ino for %s (inode %s) from %s to %s.\n",
 491             Testing ? "Would have changed" : "Changing", path, sino, sipino,
 492             spino);
 493         if (!Testing)
 494             update_pino = 1;
 495     }
 496
 497     /* Verify the file name. */
 498     (void)strcpy(tmpName, ".");
 499     (void)strcat(tmpName, int_to_base64(stmp, info->ili_info.param[2]));
 500     if (strncmp(name, tmpName, strlen(tmpName))) {
 501         Log("%s name %s (inode %s) in directory %s, unique=%d, tag=%d\n",
 502             Testing ? "Would have returned bad" : "Bad", name,
 503             PrintInode(stmp, info->ili_info.inodeNumber), dir,
 504             info->ili_info.param[2], info->ili_tag);
 505         if (!Testing)
 506             *rename = 1;
 507     }
 508
 509     if (!*rename) {
 510         /* update the tag? */
 511         (void)strcat(tmpName, ".");
 512         (void)strcat(tmpName, int_to_base64(stmp, info->ili_tag));
 513         if (strcmp(name, tmpName)) {
 514             char *p;
 515             (void)strcpy(tmpName, name);
 516             p = strchr(tmpName + 1, '.');
 517             if (!p) {
 518                 Log("No tag found on name %s (inode %s)in directory, %s.\n",
 519                     name, PrintInode(stmp, info->ili_info.inodeNumber), dir,
 520                     Testing ? "would have renamed" : "will rename");
 521                 if (!Testing)
 522                     *rename = 1;
 523             } else {
 524                 tag = base64_to_int(p + 1);
 525                 Log("%s the tag for %s (inode %s) from %d to %d.\n",
 526                     Testing ? "Would have changed" : "Will change", path,
 527                     PrintInode(stmp, info->ili_info.inodeNumber), dir, tag,
 528                     info->ili_tag);
 529                 if (!Testing)
 530                     update_tag = 1;
 531             }
 532         }
 533     }
 534
 535     if (update_pino || update_tag) {
 536         afs_xfs_attr_t attrs;
 537         int length;
 538
 539         length = SIZEOF_XFS_ATTR_T;
 540         if (attr_get(path, AFS_XFS_ATTR, (char *)&attrs, &length, ATTR_ROOT) <
 541             0) {
 542             Log("Can't get AFS attribute for %s\n", path);
 543             return -1;
 544         }
 545         if (update_pino)
 546             attrs.at_pino = pino;
 547         if (update_tag)
 548             attrs.at_tag = tag;
 549         if (attr_set
 550             (path, AFS_XFS_ATTR, (char *)&attrs, length,
 551              ATTR_ROOT | ATTR_REPLACE) < 0) {
 552             Log("Can't set AFS attribute into %s\n", path);
 553             retCode = -1;
 554         }
 555     }
 556
 557     return retCode;
 558 }
 559
 560 typedef struct {
 561     int uniq;
 562     char name[28];
 563 } xfs_Rename_t;
 564
 565 int
 566 xfs_RenameFiles(char *dir, xfs_Rename_t * renames, int n_renames)
 567 {
 568     int i, j;
 569     char opath[128], nbase[128], npath[128];
 570     afs_xfs_attr_t attrs;
 571     int length = SIZEOF_XFS_ATTR_T;
 572     b64_string_t stmp;
 573     int tag;
 574     int fd;
 575
 576     for (i = 0; i < n_renames; i++) {
 577         (void)sprintf(opath, "%s/%s", dir, renames[i].name);
 578         (void)sprintf(nbase, "%s/.%s", dir,
 579                       int_to_base64(stmp, renames[i].uniq));
 580         for (tag = 2, j = 0; j < 64; tag++, j++) {
 581             (void)sprintf(npath, "%s.%s", nbase, int_to_base64(stmp, tag));
 582             fd = afs_open(npath, O_CREAT | O_EXCL | O_RDWR, 0);
 583             if (fd > 0) {
 584                 close(fd);
 585                 break;
 586             }
 587         }
 588         if (j != 64) {
 589             Log("Can't find a new name for %s\n", opath);
 590             return -1;
 591         }
 592         if (rename(opath, npath) < 0) {
 593             Log("Can't rename %s to %s\n", opath, npath);
 594             return -1;
 595         }
 596         Log("Renamed %s to %s\n", opath, npath);
 597         return 0;
 598     }
 599 }
 600
 601
 602 int
 603 xfs_ListViceInodes(char *devname, char *mountedOn, FD_t inodeFile,
 604                    int (*judgeInode) (), VolumeId judgeParam, int *forcep,
 605                    int forceR, char *wpath, void *rock)
 606 {
 607     i_list_inode_t info;
 608     int info_size = sizeof(i_list_inode_t);
 609     int fd;
 610     DIR *top_dirp;
 611     dirent64_t *top_direntp;
 612     DIR *vol_dirp;
 613     dirent64_t *vol_direntp;
 614     struct stat64 sdirbuf;
 615     struct stat64 sfilebuf;
 616     afs_xfs_attr_t attrs;
 617     afs_xfs_dattr_t dattrs;
 618     int length;
 619     char vol_dirname[1024];
 620     int ninodes = 0;
 621     int code = 0;
 622     xfs_Rename_t *renames = (xfs_Rename_t *) 0;
 623     int rename;
 624 #define N_RENAME_STEP 64
 625     int n_renames = 0;
 626     int n_avail = 0;
 627     uint64_t pino;
 628     int errors = 0;
 629
 630     *forcep = 0;
 631
 632     if (stat64(mountedOn, &sdirbuf) < 0) {
 633         perror("xfs_ListViceInodes: stat64");
 634         return -1;
 635     }
 636
 637     if ((top_dirp = opendir(mountedOn)) == NULL) {
 638         Log("Can't open directory %s to read inodes.\n", mountedOn);
 639         return -1;
 640     }
 641
 642     while (top_direntp = readdir64(top_dirp)) {
 643         /* Only descend directories with the AFSDIR attribute set.
 644          * Could also verify the contents of the atribute, but currently
 645          * they are not used.
 646          * Performance could be improved for single volume salvages by
 647          * only going through the directory containing the volume's inodes.
 648          * But I'm being complete as a first pass.
 649          */
 650         (void)sprintf(vol_dirname, "%s/%s", mountedOn, top_direntp->d_name);
 651         length = SIZEOF_XFS_DATTR_T;
 652         if (attr_get
 653             (vol_dirname, AFS_XFS_DATTR, (char *)&dattrs, &length, ATTR_ROOT))
 654             continue;
 655
 656         if ((vol_dirp = opendir(vol_dirname)) == NULL) {
 657             if (errno == ENOTDIR)
 658                 continue;
 659             Log("Can't open directory %s to read inodes.\n", vol_dirname);
 660             goto err1_exit;
 661         }
 662
 663         pino = top_direntp->d_ino;
 664         n_renames = 0;
 665         while (vol_direntp = readdir64(vol_dirp)) {
 666             if (vol_direntp->d_name[1] == '\0'
 667                 || vol_direntp->d_name[1] == '.')
 668                 continue;
 669
 670             info.ili_version = AFS_XFS_ILI_VERSION;
 671             info_size = sizeof(i_list_inode_t);
 672             code =
 673                 ilistinode64(sdirbuf.st_dev, vol_direntp->d_ino, &info,
 674                              &info_size);
 675             if (code) {
 676                 /* Where possible, give more explicit messages. */
 677                 switch (errno) {
 678                 case ENXIO:
 679                 case ENOSYS:
 680                     Log("%s (device id %d) is not on an XFS filesystem.\n",
 681                         vol_dirname, sdirbuf.st_dev);
 682                     goto err1_exit;
 683                     break;
 684                 case EINVAL:
 685                 case E2BIG:
 686                     if (info_size != sizeof(i_list_inode_t)
 687                         || info.ili_version != AFS_XFS_ILI_VERSION) {
 688                         Log("Version skew between kernel and salvager.\n");
 689                         goto err1_exit;
 690                     }
 691                     break;
 692                 }
 693                 /* Continue, so we collect all the errors in the first pass. */
 694                 Log("Error listing inode named %s/%s: %s\n", vol_dirname,
 695                     vol_direntp->d_name, strerror(errno));
 696                 errors++;
 697                 continue;
 698             }
 699
 700             if (info.ili_attr_version != AFS_XFS_ATTR_VERS) {
 701                 Log("Unrecognized XFS attribute version %d in %s/%s. Upgrade salvager\n", info.ili_attr_version, vol_dirname, vol_direntp->d_name);
 702                 goto err1_exit;
 703             }
 704
 705             if (judgeInode && (*judgeInode) (&info.ili_info, judgeParam, rock) == 0)
 706                 continue;
 707
 708             rename = 0;
 709             if (xfs_VerifyInode
 710                 (vol_dirname, pino, vol_direntp->d_name, &info,
 711                  &rename) < 0) {
 712                 errors++;
 713             }
 714
 715             if (rename) {
 716                 /* Add this name to the list of items to rename. */
 717                 if (n_renames >= n_avail) {
 718                     n_avail += N_RENAME_STEP;
 719                     if (n_avail == N_RENAME_STEP)
 720                         renames = malloc(n_avail * sizeof(xfs_Rename_t));
 721                     else
 722                         renames = realloc(renames,
 723                                           n_avail * sizeof(xfs_Rename_t));
 724                     if (!renames) {
 725                         Log("Can't %salloc %lu bytes for rename list.\n",
 726                             (n_avail == N_RENAME_STEP) ? "m" : "re",
 727                             n_avail * sizeof(xfs_Rename_t));
 728                         goto err1_exit;
 729                     }
 730                 }
 731                 (void)strcpy(renames[n_renames].name, vol_direntp->d_name);
 732                 renames[n_renames].uniq = info.ili_info.param[2];
 733                 n_renames++;
 734             }
 735
 736             if (inodeFile != INVALID_FD) {
 737                 if (OS_WRITE
 738                     (inodeFile, &info.ili_info, sizeof(vice_inode_info_t))
 739                     != sizeof(vice_inode_info_t)) {
 740                     Log("Error writing inode file for partition %s\n", mountedOn);
 741                     goto err1_exit;
 742                 }
 743             }
 744             ninodes++;
 745
 746         }                       /* end while vol_direntp */
 747
 748         closedir(vol_dirp);
 749         vol_dirp = (DIR *) 0;
 750         if (n_renames) {
 751             Log("Renaming files.\n");
 752             if (xfs_RenameFiles(vol_dirname, renames, n_renames) < 0) {
 753                 goto err1_exit;
 754             }
 755         }
 756     }
 757
 758     closedir(top_dirp);
 759     if (renames)
 760         free(renames);
 761     if (inodeFile != INVALID_FD) {
 762         if (OS_SYNC(inodeFile) == -1) {
 763             Log("Unable to successfully fsync inode file for %s\n", mountedOn);
 764             return errors ? -1 : -2;
 765         }
 766         /*
 767          * Paranoia:  check that the file is really the right size
 768          */
 769         if (OS_SIZE(inodeFile) != ninodes * sizeof(struct ViceInodeInfo)) {
 770             Log("Wrong size (%d instead of %d) in inode file for %s\n",
 771                 OS_SIZE(inodeFile), ninodes * sizeof(struct ViceInodeInfo),
 772                 partition);
 773             return errors ? -1 : -2;
 774         }
 775     }
 776
 777     if (errors) {
 778         Log("Errors encontered listing inodes, not salvaging partition.\n");
 779         return -1;
 780     }
 781
 782     return 0;
 783
 784   err1_exit:
 785     if (vol_dirp)
 786         closedir(vol_dirp);
 787     if (top_dirp)
 788         closedir(top_dirp);
 789     if (renames)
 790         free(renames);
 791     return -1;
 792 }
 793
 794 #endif
 795
 796 int
 797 ListViceInodes(char *devname, char *mountedOn, FD_t inodeFile,
 798                int (*judgeInode) (), VolumeId judgeParam, int *forcep, int forceR,
 799                char *wpath, void *rock)
 800 {
 801     char dev[50], rdev[51];
 802     struct stat status;
 803     struct efs_dinode *p;
 804     struct ViceInodeInfo info;
 805     struct stat root_inode;
 806     int ninodes = 0, err = 0;
 807     struct efs_dinode *dinodeBuf = NULL;
 808     int last_cgno;
 809     ino_t imax, inum;           /* total number of I-nodes in file system */
 810
 811     *forcep = 0;
 812     sync();
 813     sleep(1);                   /* simulate operator    */
 814     sync();
 815     sleep(1);
 816     sync();
 817     sleep(1);
 818
 819     if (stat(mountedOn, &root_inode) < 0) {
 820         Log("cannot stat: %s\n", mountedOn);
 821         return -1;
 822     }
 823 #ifdef AFS_SGI_XFS_IOPS_ENV
 824     if (!strcmp("xfs", root_inode.st_fstype)) {
 825         return xfs_ListViceInodes(devname, mountedOn, inodeFile, judgeInode,
 826                                   judgeParam, forcep, forceR, wpath, rock);
 827     } else
 828 #endif
 829     {
 830         Log("%s is not root of a filesystem\n", mountedOn);
 831         return -1;
 832     }
 833 }
 834
 835 #else /* AFS_SGI_ENV */
 836
 837 #ifdef AFS_HPUX_ENV
 838 #define SPERB   (MAXBSIZE / sizeof(short))
 839 #define MAXNINDIR (MAXBSIZE / sizeof(daddr_t))
 840
 841 struct bufarea {
 842     struct bufarea *b_next;     /* must be first */
 843     daddr_t b_bno;
 844     int b_size;
 845     union {
 846         char b_buf[MAXBSIZE];   /* buffer space */
 847         short b_lnks[SPERB];    /* link counts */
 848         daddr_t b_indir[MAXNINDIR];     /* indirect block */
 849         struct fs b_fs;         /* super block */
 850         struct cg b_cg;         /* cylinder group */
 851     } b_un;
 852     char b_dirty;
 853 };
 854 typedef struct bufarea BUFAREA;
 855
 856 BUFAREA sblk;
 857 #define sblock sblk.b_un.b_fs
 858 #endif /* AFS_HPUX_ENV */
 859
 860 extern char *afs_rawname();
 861 int
 862 ListViceInodes(char *devname, char *mountedOn, FD_t inodeFile,
 863                int (*judgeInode) (), VolumeId judgeParam, int *forcep, int forceR,
 864                char *wpath, void *rock)
 865 {
 866     union {
 867 #ifdef  AFS_AIX_ENV
 868         struct filsys fs;
 869         char block[BSIZE];
 870 #else                           /* !AFS_AIX_ENV */
 871         struct fs fs;
 872         char block[SBSIZE];
 873 #endif
 874     } super;
 875     int i, c, e, bufsize, code, err = 0;
 876     char dev[50], rdev[100], err1[512], *ptr1;
 877     struct dinode *inodes = NULL, *einodes, *dptr;
 878     int ninodes = 0;
 879     struct dinode *p;
 880     struct ViceInodeInfo info;
 881
 882     *forcep = 0;
 883     partition = mountedOn;
 884     sprintf(rdev, "%s/%s", wpath, devname);
 885     ptr1 = afs_rawname(rdev);
 886     strcpy(rdev, ptr1);
 887
 888     sync();
 889     /* Bletch:  this is terrible;  is there a better way to do this? Does this work? vfsck doesn't even sleep!! */
 890 #ifdef  AFS_AIX_ENV
 891     sleep(5);                   /* Trying a smaller one for aix */
 892 #else
 893     sleep(10);
 894 #endif
 895
 896     pfd = OS_OPEN(rdev, O_RDONLY, 0666);
 897     if (pfd == INVALID_FD) {
 898         sprintf(err1, "Could not open device %s to get inode list\n", rdev);
 899         perror(err1);
 900         return -1;
 901     }
 902 #ifdef  AFS_AIX_ENV
 903     if (bread(pfd, (char *)&super.fs, SUPERB, sizeof super.fs) == -1) {
 904 #else
 905 #ifdef AFS_HPUX_ENV
 906     if (bread(pfd, (char *)&sblock, SBLOCK, SBSIZE) == -1) {
 907 #else
 908     if (bread(pfd, super.block, SBLOCK, SBSIZE) == -1) {
 909 #endif /* AFS_HPUX_ENV */
 910 #endif
 911         Log("Unable to read superblock, partition %s\n", partition);
 912         goto out;
 913     }
 914
 915 #ifdef  AFS_AIX_ENV
 916     /*
 917      * char *FSlabel(), *fslabel=0;
 918      * fslabel = FSlabel(&super.fs);
 919      */
 920     if (super.fs.s_bsize == 0)
 921         super.fs.s_bsize = 512;
 922     if (super.fs.s_bsize != BSIZE) {
 923         Log("SuperBlk: Cluster size not %d; run vfsck\n", BSIZE);
 924         goto out;
 925     }
 926     fmax = super.fs.s_fsize;    /* first invalid blk num */
 927     imax = ((ino_t) super.fs.s_isize - (SUPERB + 1)) * INOPB;
 928     if (imax == 0) {
 929         Log("Size check: imax==0!\n");
 930         goto out;
 931     }
 932     if (GetAuxInodeFile(partition, &status) == 0) {
 933         Log("Can't access Aux inode file for partition %s, aborting\n",
 934             partition);
 935         goto out;
 936     }
 937     for (inum = 1; inum <= imax; inum++) {
 938         struct dauxinode *auxp;
 939         if ((auxp = IsAfsInode(inum)) == NULL) {
 940             /* Not an afs inode, keep going */
 941             continue;
 942         }
 943         if ((p = ginode(inum)) == NULL)
 944             continue;
 945         /* deleted/non-existent inode when di_mode == 0 */
 946         if (!p->di_mode)
 947             continue;
 948         info.inodeNumber = (int)inum;
 949         info.byteCount = p->di_size;
 950         info.linkCount = p->di_nlink;
 951         info.u.param[0] = auxp->aux_param1;
 952         info.u.param[1] = auxp->aux_param2;
 953         info.u.param[2] = auxp->aux_param3;
 954         info.u.param[3] = auxp->aux_param4;
 955         if (judgeInode && (*judgeInode) (&info, judgeParam, rock) == 0)
 956             continue;
 957         if (inodeFile != INVALID_FD) {
 958             if (OS_WRITE(inodeFile, &info, sizeof(info)) != sizeof(info)) {
 959                 Log("Error writing inode file for partition %s\n", partition);
 960                 goto out;
 961             }
 962         }
 963         ninodes++;
 964     }
 965 #else
 966     /*
 967      * run a few consistency checks of the superblock
 968      * (Cribbed from vfsck)
 969      */
 970 #ifdef AFS_HPUX_ENV
 971 #if defined(FD_FSMAGIC)
 972     if ((sblock.fs_magic != FS_MAGIC) && (sblock.fs_magic != FS_MAGIC_LFN)
 973         && (sblock.fs_magic != FD_FSMAGIC)
 974 #if     defined(AFS_HPUX101_ENV)
 975         && (sblock.fs_magic != FD_FSMAGIC_2)
 976 #endif
 977         ) {
 978 #else
 979     if ((sblock.fs_magic != FS_MAGIC) && (sblock.fs_magic != FS_MAGIC_LFN)) {
 980 #endif
 981         Log("There's something wrong with the superblock for partition %s; bad magic (%d) run vfsck\n", partition, sblock.fs_magic);
 982         goto out;
 983     }
 984     if (sblock.fs_ncg < 1) {
 985         Log("There's something wrong with the superblock for partition %s; NCG OUT OF RANGE (%d) run vfsck\n", partition, sblock.fs_ncg);
 986         goto out;
 987     }
 988     if (sblock.fs_cpg < 1 || sblock.fs_cpg > MAXCPG) {
 989         Log("There's something wrong with the superblock for partition %s; CPG OUT OF RANGE (%d) run vfsck\n", partition, sblock.fs_cpg);
 990         goto out;
 991     }
 992     if (sblock.fs_ncg * sblock.fs_cpg < sblock.fs_ncyl
 993         || (sblock.fs_ncg - 1) * sblock.fs_cpg >= sblock.fs_ncyl) {
 994         Log("There's something wrong with the superblock for partition %s; NCYL LESS THAN NCG*CPG run vfsck\n", partition);
 995         goto out;
 996     }
 997     if (sblock.fs_sbsize > SBSIZE) {
 998         Log("There's something wrong with the superblock for partition %s; bsize too large (%d vs. %d) run vfsck\n", partition, sblock.fs_sbsize, sblock.fs_bsize);
 999         goto out;
1000     }
1001 #else
1002     if ((super.fs.fs_magic != FS_MAGIC)
1003         || (super.fs.fs_ncg < 1)
1004 #if     defined(AFS_SUN_ENV) || defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1005         || (super.fs.fs_cpg < 1)
1006 #else
1007         || (super.fs.fs_cpg < 1 || super.fs.fs_cpg > MAXCPG)
1008 #endif
1009         || (super.fs.fs_ncg * super.fs.fs_cpg < super.fs.fs_ncyl
1010             || (super.fs.fs_ncg - 1) * super.fs.fs_cpg >= super.fs.fs_ncyl)
1011         || (super.fs.fs_sbsize > SBSIZE)) {
1012         Log("There's something wrong with the superblock for partition %s; run vfsck\n", partition);
1013         goto out;
1014     }
1015 #endif /* AFS_HPUX_ENV */
1016
1017 #ifdef AFS_HPUX_ENV
1018     bufsize = sblock.fs_ipg * sizeof(struct dinode);
1019 #else
1020     bufsize = super.fs.fs_ipg * sizeof(struct dinode);
1021 #endif /* AFS_HPUX_ENV */
1022     inodes = malloc(bufsize);
1023     einodes = (struct dinode *)(((char *)inodes) + bufsize);
1024     if (inodes == NULL) {
1025         Log("Unable to allocate enough memory to scan inodes; help!\n");
1026         goto out;
1027     }
1028     Log("Scanning inodes on device %s...\n", rdev);
1029 #ifdef AFS_HPUX_ENV
1030     for (c = 0; c < sblock.fs_ncg; c++) {
1031         i = c * sblock.fs_ipg;
1032         e = i + sblock.fs_ipg;
1033 #if     defined(AFS_HPUX102_ENV)
1034         if (OS_SEEK(pfd, dbtoo(fsbtodb(&sblock, itod(&sblock, i))), L_SET) ==
1035             -1) {
1036 #else
1037         if (OS_SEEK(pfd, dbtob(fsbtodb(&sblock, itod(&sblock, i))), L_SET) ==
1038             -1) {
1039 #endif
1040 #else
1041     for (c = 0; c < super.fs.fs_ncg; c++) {
1042         daddr_t dblk1;
1043 #if defined(AFS_SUN5_ENV) || defined(AFS_DARWIN_ENV)
1044         daddr_t f1;
1045 #if defined(AFS_DARWIN_ENV)
1046 #define offset_t off_t
1047 #define llseek lseek
1048 #endif
1049         offset_t off;
1050 #endif /* AFS_SUN5_ENV */
1051         i = c * super.fs.fs_ipg;
1052         e = i + super.fs.fs_ipg;
1053 #ifdef  AFS_OSF_ENV
1054         dblk1 = fsbtodb(&super.fs, itod(&super.fs, i));
1055         if (OS_SEEK(pfd, (off_t) ((off_t) dblk1 * DEV_BSIZE), L_SET) == -1) {
1056 #else
1057 #if defined(AFS_SUN5_ENV) || defined(AFS_DARWIN_ENV)
1058         f1 = fsbtodb(&super.fs, itod(&super.fs, i));
1059         off = (offset_t) f1 << DEV_BSHIFT;
1060         if (OS_SEEK(pfd, off, L_SET) == -1) {
1061 #else
1062         if (OS_SEEK(pfd, dbtob(fsbtodb(&super.fs, itod(&super.fs, i))), L_SET)
1063             == -1) {
1064 #endif /* AFS_SUN5_ENV */
1065 #endif /* AFS_OSF_ENV */
1066 #endif /* AFS_HPUX_ENV */
1067             Log("Error reading inodes for partition %s; run vfsck\n",
1068                 partition);
1069             goto out;
1070         }
1071         while (i < e) {
1072             if (!forceR) {
1073                 if (OS_READ(pfd, inodes, bufsize) != bufsize) {
1074                     Log("Error reading inodes for partition %s; run vfsck\n",
1075                         partition);
1076                     goto out;
1077                 }
1078             } else {
1079                 int bj, bk;
1080                 dptr = inodes;
1081                 for (bj = bk = 0; bj < bufsize; bj = bj + 512, bk++) {
1082                     if ((code = OS_READ(pfd, dptr, 512)) != 512) {
1083                         Log("Error reading inode %d? for partition %s (errno = %d); run vfsck\n", bk + i, partition, errno);
1084                         if (OS_SEEK(pfd, 512, L_SET) == -1) {
1085                             Log("OS_SEEK failed\n");
1086                             goto out;
1087                         }
1088                         dptr->di_mode = 0;
1089                         dptr++;
1090                         dptr->di_mode = 0;
1091                         dptr++;
1092                         dptr->di_mode = 0;
1093                         dptr++;
1094                         dptr->di_mode = 0;
1095                         dptr++;
1096                     } else
1097                         dptr += 4;
1098                 }
1099             }
1100             for (p = inodes; p < einodes && i < e; i++, p++) {
1101 #ifdef notdef
1102                 Log("Ino=%d, v1=%x, v2=%x, v3=%x, mode=%x size=%d, lcnt=%d\n",
1103                     i, p->di_vicep1, p->di_vicep2, p->di_vicep3, p->di_mode,
1104                     p->di_size, p->di_nlink);
1105                 printf
1106                     ("Ino=%d, v1=%x, v2=%x, v3=%x, mode=%x size=%d, lcnt=%d\n",
1107                      i, p->di_vicep1, p->di_vicep2, p->di_vicep3, p->di_mode,
1108                      p->di_size, p->di_nlink);
1109 #endif
1110 #ifdef AFS_OSF_ENV
1111 #ifdef AFS_3DISPARES
1112                 /* Check to see if this inode is a pre-"OSF1 4.0D" inode */
1113                 if ((p->di_uid || p->di_gid)
1114                     && !(p->di_flags & (IC_XUID | IC_XGID))) {
1115                     Log("Found unconverted inode %d: Use 'fs_conv_dux40D convert' on partition %s\n", i, partition);
1116                     goto out;
1117                 }
1118 #else
1119                 osi_Panic("Tru64 needs AFS_3DISPARES\n");
1120 #endif
1121 #endif
1122 #if     defined(AFS_SUN5_ENV)
1123                 /* if this is a pre-sol2.6 unconverted inode, bail out */
1124                 {
1125                     afs_uint32 p1, p2, p3, p4;
1126                     int p5;
1127                     quad *q;
1128
1129                     q = (quad *) & (p->di_ic.ic_lsize);
1130                     p1 = p->di_gen;
1131                     p2 = p->di_ic.ic_flags;
1132                     p3 = q->val[0];
1133                     p4 = p->di_ic.ic_uid;
1134                     p5 = p->di_ic.ic_gid;
1135
1136                     if ((p2 || p3) && !p4 && (p5 == -2)) {
1137                         Log("Found unconverted inode %d\n", i);
1138                         Log("You should run the AFS file conversion utility\n");
1139                         goto out;
1140                     }
1141                 }
1142 #endif
1143                 if (IS_DVICEMAGIC(p) && (p->di_mode & IFMT) == IFREG) {
1144                     afs_uint32 p2 = p->di_vicep2, p3 = DI_VICEP3(p);
1145
1146                     info.u.param[0] = p->di_vicep1;
1147 #ifdef  AFS_3DISPARES
1148                     if (((p2 >> 3) == INODESPECIAL) && (p2 & 0x3)) {
1149                         info.u.param[1] = INODESPECIAL;
1150                         info.u.param[2] = p3;
1151                         info.u.param[3] = p2 & 0x3;
1152                     } else {
1153                         info.u.param[1] = ((p2 >> 27) << 16) + (p3 & 0xffff);
1154                         info.u.param[2] = (p2 & 0x3fffff);
1155                         info.u.param[3] =
1156                             (((p2 >> 22) & 0x1f) << 16) + (p3 >> 16);
1157                     }
1158 #else
1159                     info.u.param[1] = p->di_vicep2;
1160                     info.u.param[2] = DI_VICEP3(p);
1161                     info.u.param[3] = p->di_vicep4;
1162 #endif
1163                     info.inodeNumber = i;
1164                     info.byteCount = p->di_size;
1165                     info.linkCount = p->di_nlink;
1166                     if (judgeInode && (*judgeInode) (&info, judgeParam, rock) == 0)
1167                         continue;
1168                     if (inodeFile != INVALID_FD) {
1169                         if (OS_WRITE(inodeFile, &info, sizeof(info)) != sizeof(info)) {
1170                             Log("Error writing inode file for partition %s\n",
1171                                 partition);
1172                             goto out;
1173                         }
1174                     }
1175                     ninodes++;
1176                 }
1177             }
1178         }
1179     }
1180     if (inodes)
1181         free(inodes);
1182 #endif
1183     if (inodeFile != INVALID_FD) {
1184         if (OS_SYNC(inodeFile) == -1) {
1185             Log("Unable to successfully fsync inode file for %s\n", partition);
1186             err = -2;
1187             goto out1;
1188         }
1189
1190         /*
1191          * Paranoia:  check that the file is really the right size
1192          */
1193         if (OS_SIZE(inodeFile) != ninodes * sizeof(struct ViceInodeInfo)) {
1194             Log("Wrong size (%d instead of %d) in inode file for %s\n",
1195                 OS_SIZE(inodeFile), ninodes * sizeof(struct ViceInodeInfo),
1196                 partition);
1197             err = -2;
1198             goto out1;
1199         }
1200     }
1201     OS_CLOSE(pfd);
1202     return 0;
1203
1204   out:
1205     err = -1;
1206   out1:
1207     OS_CLOSE(pfd);
1208     if (inodes)
1209         free(inodes);
1210     return err;
1211 }
1212 #endif /* !AFS_SGI_ENV */
1213 #endif /* !AFS_AIX31_ENV       */
1214
1215 #ifdef AFS_DARWIN_ENV
1216 #undef dbtob
1217 #define dbtob(db) ((unsigned)(db) << DEV_BSHIFT)
1218 #endif
1219
1220 int
1221 bread(FD_t fd, char *buf, daddr_t blk, afs_int32 size)
1222 {
1223 #ifdef  AFS_AIX_ENV
1224 #ifdef  AFS_AIX41_ENV
1225     offset_t off = (offset_t) blk << FSBSHIFT;
1226     if (OS_SEEK(fd, off, 0) < 0) {
1227         Log("Unable to seek to offset %llu for block %u\n", off, blk);
1228         return -1;
1229     }
1230 #else /* AFS_AIX41_ENV */
1231     if (OS_SEEK(fd, blk * Bsize, 0) < 0) {
1232         Log("Unable to seek to offset %u for block %u\n", blk * Bsize, blk);
1233     }
1234 #endif /* AFS_AIX41_ENV */
1235 #else
1236     if (OS_SEEK(fd, (off_t) dbtob(blk), L_SET) < 0) {
1237         Log("Unable to seek to offset %u for block %u\n", dbtob(blk), blk);
1238     }
1239 #endif
1240     if (OS_READ(fd, buf, size) != size) {
1241         Log("Unable to read block %d, partition %s\n", blk, partition);
1242         return -1;
1243     }
1244     return 0;
1245 }
1246
1247 #endif /* AFS_LINUX20_ENV */
1248 static afs_int32
1249 convertVolumeInfo(FdHandle_t *fdhr, FdHandle_t *fdhw, VolumeId vid)
1250 {
1251     struct VolumeDiskData vd;
1252     char *p;
1253
1254     if (FDH_PREAD(fdhr, &vd, sizeof(struct VolumeDiskData), 0) !=
1255         sizeof(struct VolumeDiskData)) {
1256         Log("1 convertiVolumeInfo: read failed for %lu with code %d\n", vid,
1257             errno);
1258         return -1;
1259     }
1260     vd.restoredFromId = vd.id;  /* remember the RO volume here */
1261     vd.cloneId = vd.id;
1262     vd.id = vd.parentId;
1263     vd.type = RWVOL;
1264     vd.dontSalvage = 0;
1265     vd.inUse = 0;
1266     vd.uniquifier += 5000;      /* just in case there are still file copies
1267                                    from the old RW volume around */
1268
1269     /* For ROs, the copyDate contains the time that the RO volume was actually
1270      * created, and the creationDate just contains the last time the RO was
1271      * copied from the RW data. So, make the new RW creationDate more accurate
1272      * by setting it to copyDate, if copyDate is older. Since, we know the
1273      * volume is at least as old as copyDate. */
1274     if (vd.copyDate < vd.creationDate) {
1275         vd.creationDate = vd.copyDate;
1276     } else {
1277         /* If copyDate is newer, just make copyDate and creationDate the same,
1278          * for consistency with other RWs */
1279         vd.copyDate = vd.creationDate;
1280     }
1281
1282     p = strrchr(vd.name, '.');
1283     if (p && !strcmp(p, ".readonly")) {
1284         memset(p, 0, 9);
1285     }
1286
1287     if (FDH_PWRITE(fdhw, &vd, sizeof(struct VolumeDiskData), 0) !=
1288         sizeof(struct VolumeDiskData)) {
1289         Log("1 convertiVolumeInfo: write failed for %lu with code %d\n", vid,
1290             errno);
1291         return -1;
1292     }
1293     return 0;
1294 }
1295
1296 struct specino {
1297     afs_int32 inodeType;
1298     Inode inodeNumber;
1299     Inode ninodeNumber;
1300 };
1301
1302
1303 int
1304 UpdateThisVolume(struct ViceInodeInfo *inodeinfo, VolumeId singleVolumeNumber,
1305                  struct specino *specinos)
1306 {
1307     struct dinode *p;
1308     if ((inodeinfo->u.vnode.vnodeNumber == INODESPECIAL) &&
1309         (inodeinfo->u.vnode.volumeId == singleVolumeNumber)) {
1310         specinos[inodeinfo->u.special.type].inodeNumber =
1311             inodeinfo->inodeNumber;
1312     }
1313     return 0; /* We aren't using a result file, we're caching */
1314 }
1315
1316 static char *
1317 getDevName(char *pbuffer, char *wpath)
1318 {
1319     char pbuf[128], *ptr;
1320     strcpy(pbuf, pbuffer);
1321     ptr = (char *)strrchr(pbuf, OS_DIRSEPC);
1322     if (ptr) {
1323         *ptr = '\0';
1324         strcpy(wpath, pbuf);
1325     } else
1326         return NULL;
1327     ptr = (char *)strrchr(pbuffer, OS_DIRSEPC);
1328     if (ptr) {
1329         strcpy(pbuffer, ptr + 1);
1330         return pbuffer;
1331     } else
1332         return NULL;
1333 }
1334
1335 #ifdef FSSYNC_BUILD_CLIENT
1336 int
1337 inode_ConvertROtoRWvolume(char *pname, VolumeId volumeId)
1338 {
1339     char dir_name[512], oldpath[512], newpath[512];
1340     char volname[20];
1341     char headername[16];
1342     char *name;
1343     int fd, err, forcep, j;
1344     ssize_t len, nBytes;
1345     struct dirent *dp;
1346     struct DiskPartition64 *partP;
1347     struct ViceInodeInfo info;
1348     struct VolumeDiskHeader h;
1349     IHandle_t *ih, *ih2;
1350     FdHandle_t *fdP, *fdP2;
1351     afs_foff_t offset;
1352     char wpath[100];
1353     char tmpDevName[100];
1354     char buffer[128];
1355     struct specino specinos[VI_LINKTABLE+1];
1356     Inode nearInode = 0;
1357 # ifdef AFS_DEMAND_ATTACH_FS
1358     int locktype = 0;
1359 # endif /* AFS_DEMAND_ATTACH_FS */
1360     int code = 0;
1361
1362     memset(&specinos, 0, sizeof(specinos));
1363
1364     /* now do the work */
1365
1366     for (partP = DiskPartitionList; partP && strcmp(partP->name, pname);
1367          partP = partP->next);
1368     if (!partP) {
1369         Log("1 inode_ConvertROtoRWvolume: Couldn't find DiskPartition for %s\n", pname);
1370         code = EIO;
1371         goto done;
1372     }
1373
1374 #ifdef AFS_DEMAND_ATTACH_FS
1375     locktype = VVolLockType(V_VOLUPD, 1);
1376     code = VLockVolumeByIdNB(volumeId, partP, locktype);
1377     if (code) {
1378         locktype = 0;
1379         code = EIO;
1380         goto done;
1381     }
1382 #endif
1383
1384     if (VReadVolumeDiskHeader(volumeId, partP, &h)) {
1385         Log("1 inode_ConvertROtoRWvolume: Couldn't read header for RO-volume %lu.\n",
1386             afs_printable_uint32_lu(volumeId));
1387         return EIO;
1388     }
1389
1390     FSYNC_VolOp(volumeId, pname, FSYNC_VOL_BREAKCBKS, 0, NULL);
1391
1392     strcpy(tmpDevName, partP->devName);
1393     name = getDevName(tmpDevName, wpath);
1394
1395     if ((err = ListViceInodes(name, VPartitionPath(partP),
1396                               NULL, UpdateThisVolume, volumeId,
1397                               &forcep, 0, wpath, &specinos)) < 0)
1398     {
1399         Log("1 inode_ConvertROtoRWvolume: Couldn't get special inodes\n");
1400         code = EIO;
1401         goto done;
1402     }
1403
1404 #if defined(NEARINODE_HINT)
1405     nearInodeHash(volumeId, nearInode);
1406     nearInode %= partP->f_files;
1407 #endif
1408
1409     for (j = VI_VOLINFO; j < VI_LINKTABLE+1; j++) {
1410         if (specinos[j].inodeNumber > 0) {
1411             specinos[j].ninodeNumber =
1412                 IH_CREATE(NULL, partP->device, VPartitionPath(partP),
1413                           nearInode, h.parent, INODESPECIAL, j, h.parent);
1414             IH_INIT(ih, partP->device, volumeId,
1415                     specinos[j].inodeNumber);
1416             fdP = IH_OPEN(ih);
1417             if (!fdP) {
1418                 Log("1 inode_ConvertROtoRWvolume: Couldn't find special inode %d for %d\n", j, volumeId);
1419                 code = -1;
1420                 goto done;
1421             }
1422
1423             IH_INIT(ih2, partP->device, h.parent, specinos[j].ninodeNumber);
1424             fdP2 = IH_OPEN(ih2);
1425             if (!fdP2) {
1426                 Log("1 inode_ConvertROtoRWvolume: Couldn't find special inode %d for %d\n", j, h.parent);
1427                 code = -1;
1428                 goto done;
1429             }
1430
1431             if (j == VI_VOLINFO)
1432                 convertVolumeInfo(fdP, fdP2, ih2->ih_vid);
1433             else {
1434                 offset = 0;
1435                 while (1) {
1436                     len = FDH_PREAD(fdP, buffer, sizeof(buffer), offset);
1437                     if (len < 0)
1438                         return errno;
1439                     if (len == 0)
1440                         break;
1441                     nBytes = FDH_PWRITE(fdP2, buffer, len, offset);
1442                     if (nBytes != len) {
1443                         code = -1;
1444                         goto done;
1445                     }
1446                     offset += len;
1447                 }
1448             }
1449
1450             FDH_CLOSE(fdP);
1451             FDH_CLOSE(fdP2);
1452
1453             /* Unlink the old special inode; otherwise we will get duplicate
1454              * special inodes if we recreate the RO again */
1455             if (IH_DEC(ih, specinos[j].inodeNumber, volumeId) == -1) {
1456                 afs_ino_str_t stmp;
1457                 Log("IH_DEC failed: %x, %s, %u errno %d\n", ih,
1458                     PrintInode(stmp, specinos[j].inodeNumber), volumeId, errno);
1459             }
1460
1461             IH_RELEASE(ih);
1462             IH_RELEASE(ih2);
1463         }
1464     }
1465
1466     h.id = h.parent;
1467 #ifdef AFS_64BIT_IOPS_ENV
1468     h.volumeInfo_lo = (afs_int32)specinos[VI_VOLINFO].ninodeNumber & 0xffffffff;
1469     h.volumeInfo_hi = (afs_int32)(specinos[VI_VOLINFO].ninodeNumber >> 32) && 0xffffffff;
1470     h.smallVnodeIndex_lo = (afs_int32)specinos[VI_SMALLINDEX].ninodeNumber & 0xffffffff;
1471     h.smallVnodeIndex_hi = (afs_int32)(specinos[VI_SMALLINDEX].ninodeNumber >> 32) & 0xffffffff;
1472     h.largeVnodeIndex_lo = (afs_int32)specinos[VI_LARGEINDEX].ninodeNumber & 0xffffffff;
1473     h.largeVnodeIndex_hi = (afs_int32)(specinos[VI_LARGEINDEX].ninodeNumber >> 32) & 0xffffffff;
1474     if (specinos[VI_LINKTABLE].ninodeNumber) {
1475         h.linkTable_lo = (afs_int32)specinos[VI_LINKTABLE].ninodeNumber & 0xffffffff;
1476         h.linkTable_hi = (afs_int32)specinos[VI_LINKTABLE].ninodeNumber & 0xffffffff;
1477     }
1478 #else
1479     h.volumeInfo_lo = specinos[VI_VOLINFO].ninodeNumber;
1480     h.smallVnodeIndex_lo = specinos[VI_SMALLINDEX].ninodeNumber;
1481     h.largeVnodeIndex_lo = specinos[VI_LARGEINDEX].ninodeNumber;
1482     if (specinos[VI_LINKTABLE].ninodeNumber) {
1483         h.linkTable_lo = specinos[VI_LINKTABLE].ninodeNumber;
1484     }
1485 #endif
1486
1487     if (VCreateVolumeDiskHeader(&h, partP)) {
1488         Log("1 inode_ConvertROtoRWvolume: Couldn't write header for RW-volume %lu\n",
1489             afs_printable_uint32_lu(h.id));
1490         code = EIO;
1491         goto done;
1492     }
1493
1494     if (VDestroyVolumeDiskHeader(partP, volumeId, h.parent)) {
1495         Log("1 inode_ConvertROtoRWvolume: Couldn't unlink header for RO-volume %lu\n",
1496             afs_printable_uint32_lu(volumeId));
1497     }
1498
1499     FSYNC_VolOp(volumeId, pname, FSYNC_VOL_DONE, 0, NULL);
1500     FSYNC_VolOp(h.id, pname, FSYNC_VOL_ON, 0, NULL);
1501
1502  done:
1503 # ifdef AFS_DEMAND_ATTACH_FS
1504     if (locktype) {
1505         VUnlockVolumeById(volumeId, partP);
1506     }
1507 # endif /* AFS_DEMAND_ATTACH_FS */
1508     return code;
1509 }
1510 #endif /* FSSYNC_BUILD_CLIENT */
1511 #endif /* AFS_NAMEI_ENV */