2 * Copyright 2000, International Business Machines Corporation and others.
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
10 #include <afsconfig.h>
11 #include <afs/param.h>
15 #include <sys/types.h>
22 #include <sys/param.h>
25 #include <netinet/in.h>
36 #include <afs/assert.h>
39 #include <afs/afsint.h>
41 #include <afs/errors.h>
44 #include <afs/ihandle.h>
45 #include <afs/vnode.h>
46 #include <afs/volume.h>
47 #include <afs/partition.h>
49 #include <afs/fssync.h>
56 /* This iod stuff is a silly little package to emulate the old qi_in stuff, which
57 emulated the stdio stuff. There is a big assumption here, that the
58 rx_Read will never be called directly, by a routine like readFile, when
59 there is an old character that was pushed back with iod_ungetc. This
60 is really bletchy, and is here for compatibility only. Eventually,
61 we should define a volume format that doesn't require
62 the pushing back of characters (i.e. characters should not double both
63 as an end marker and a begin marker) */
65 struct rx_call *call; /* call to which to write, might be an array */
66 int device; /* dump device ID for volume */
67 int parentId; /* dump parent ID for volume */
68 struct DiskPartition *dumpPartition; /* Dump partition. */
69 struct rx_call **calls; /* array of pointers to calls */
70 int ncalls; /* how many calls/codes in array */
71 int *codes; /* one return code for each call */
72 char haveOldChar; /* state for pushing back a character */
77 /* Forward Declarations */
78 static int DumpDumpHeader(register struct iod *iodp, register Volume *vp,
80 static int DumpPartial(register struct iod *iodp, register Volume *vp,
81 afs_int32 fromtime, int dumpAllDirs);
82 static int DumpVnodeIndex(register struct iod *iodp, Volume *vp,
83 VnodeClass class, afs_int32 fromtime, int forcedump);
84 static int DumpVnode(register struct iod *iodp, struct VnodeDiskObject *v,
85 int vnodeNumber, int dumpEverything);
86 static int ReadDumpHeader(register struct iod *iodp, struct DumpHeader *hp);
87 static int ReadVnodes(register struct iod *iodp, Volume *vp,
88 int incremental, afs_int32 *Lbuf, afs_int32 s1,
89 afs_int32 *Sbuf, afs_int32 s2, afs_int32 delo);
90 static bit32 volser_WriteFile(int vn, struct iod *iodp, FdHandle_t *handleP,
94 static void iod_Init(register struct iod *iodp, register struct rx_call *call)
97 iodp->haveOldChar = 0;
99 iodp->calls = (struct rx_call **) 0;
102 static void iod_InitMulti(struct iod *iodp, struct rx_call **calls, int ncalls,
107 iodp->haveOldChar = 0;
108 iodp->ncalls = ncalls;
110 iodp->call = (struct rx_call *) 0;
113 /* N.B. iod_Read doesn't check for oldchar (see previous comment) */
114 #define iod_Read(iodp, buf, nbytes) rx_Read((iodp)->call, buf, nbytes)
116 /* For the single dump case, it's ok to just return the "bytes written"
117 * that rx_Write returns, since all the callers of iod_Write abort when
118 * the returned value is less than they expect. For the multi dump case,
119 * I don't think we want half the replicas to go bad just because one
120 * connection timed out, but if they all time out, then we should give up.
122 static int iod_Write(struct iod *iodp, char *buf, int nbytes)
127 assert ((iodp->call && iodp->ncalls == 1 && !iodp->calls) ||
128 (!iodp->call && iodp->ncalls >= 1 && iodp->calls));
131 code = rx_Write(iodp->call, buf, nbytes);
135 for (i=0; i < iodp->ncalls; i++) {
136 if (iodp->calls[i] && !iodp->codes[i]) {
137 code = rx_Write(iodp->calls[i], buf, nbytes);
138 if (code != nbytes) { /* everything gets merged into a single error */
139 iodp->codes[i] = VOLSERDUMPERROR; /* but that's exactly what the */
140 } /* standard dump does, anyways */
145 } /* for all calls */
152 static void iod_ungetc(struct iod *iodp, int achar)
154 iodp->oldChar = achar;
155 iodp->haveOldChar = 1;
158 static int iod_getc(register struct iod *iodp)
162 if (iodp->haveOldChar) {
163 iodp->haveOldChar = 0;
164 return iodp->oldChar;
166 if (iod_Read(iodp, &t, 1) == 1) return t;
170 static int ReadShort(register struct iod *iodp, register unsigned short *sp)
179 static int ReadInt32(register struct iod *iodp, afs_uint32 *lp)
181 afs_uint32 register b3,b2,b1,b0;
186 *lp = (((((b3<<8)|b2)<<8)|b1)<<8)|b0;
190 static void ReadString(register struct iod *iodp, register char *to,
195 if ((*to++ = iod_getc(iodp)) == 0)
199 while ((c = iod_getc(iodp)) && c != EOF);
204 static void ReadByteString(register struct iod *iodp, register byte *to,
208 *to++ = iod_getc(iodp);
211 static int ReadVolumeHeader(register struct iod *iodp, VolumeDiskData *vol)
215 memset(vol, 0, sizeof(*vol));
216 while ((tag = iod_getc(iodp)) > D_MAX && tag != EOF) {
219 if(!ReadInt32(iodp, &vol->id)) return VOLSERREAD_DUMPERROR;
222 if(!ReadInt32(iodp, &trash)) return VOLSERREAD_DUMPERROR;
225 ReadString(iodp, vol->name, sizeof(vol->name));
226 /*this means the name of the retsored volume could be possibly different. In conjunction with SAFSVolSignalRestore */
229 vol->inService = iod_getc(iodp );
232 vol->blessed = iod_getc(iodp );
235 if(!ReadInt32(iodp, &vol->uniquifier)) return VOLSERREAD_DUMPERROR;
238 vol->type = iod_getc(iodp );
241 if(!ReadInt32(iodp, &vol->parentId)) return VOLSERREAD_DUMPERROR;
244 if(!ReadInt32(iodp, &vol->cloneId)) return VOLSERREAD_DUMPERROR;
247 if(!ReadInt32(iodp, (afs_uint32 *)&vol->maxquota)) return VOLSERREAD_DUMPERROR;
250 if(!ReadInt32(iodp, (afs_uint32 *)&vol->minquota)) return VOLSERREAD_DUMPERROR;
253 if(!ReadInt32(iodp, (afs_uint32 *)&vol->diskused)) return VOLSERREAD_DUMPERROR; /* Bogus: should calculate this */
256 if(!ReadInt32(iodp, (afs_uint32 *)&vol->filecount)) return VOLSERREAD_DUMPERROR;
259 if(!ReadInt32(iodp, &vol->accountNumber)) return VOLSERREAD_DUMPERROR;
262 if(!ReadInt32(iodp, &vol->owner)) return VOLSERREAD_DUMPERROR;
265 if(!ReadInt32(iodp, &vol->creationDate)) return VOLSERREAD_DUMPERROR;
268 if(!ReadInt32(iodp, &vol->accessDate)) return VOLSERREAD_DUMPERROR;
271 if(!ReadInt32(iodp, &vol->updateDate)) return VOLSERREAD_DUMPERROR;
274 if(!ReadInt32(iodp, &vol->expirationDate)) return VOLSERREAD_DUMPERROR;
277 if(!ReadInt32(iodp, &vol->backupDate)) return VOLSERREAD_DUMPERROR;
280 ReadString(iodp, vol->offlineMessage, sizeof(vol->offlineMessage));
284 * Detailed volume statistics are never stored in dumps,
285 * so we just restore either the null string if this volume
286 * had already been set to store statistics, or the old motd
287 * contents otherwise. It doesn't matter, since this field
288 * will soon get initialized anyway.
290 ReadString(iodp, (char *)(vol->stat_reads), VMSGSIZE);
293 unsigned short length;
296 if(!ReadShort(iodp, &length)) return VOLSERREAD_DUMPERROR;
297 for (i = 0; i<length; i++) {
298 if(!ReadInt32(iodp, &data)) return VOLSERREAD_DUMPERROR;
299 if (i < sizeof(vol->weekUse)/sizeof(vol->weekUse[0]))
300 vol->weekUse[i] = data;
305 if(!ReadInt32(iodp, &vol->dayUseDate)) return VOLSERREAD_DUMPERROR;
308 if(!ReadInt32(iodp, (afs_uint32 *)&vol->dayUse)) return VOLSERREAD_DUMPERROR;
312 iod_ungetc(iodp, tag);
316 static int DumpTag(register struct iod *iodp, register int tag)
321 return((iod_Write(iodp, &p, 1) == 1)? 0 : VOLSERDUMPERROR);
325 static int DumpByte(register struct iod *iodp, char tag, byte value)
328 register byte *p = (unsigned char *) tbuffer;
331 return((iod_Write(iodp, tbuffer, 2) == 2)? 0: VOLSERDUMPERROR);
334 #define putint32(p, v) *p++ = v>>24, *p++ = v>>16, *p++ = v>>8, *p++ = v
335 #define putshort(p, v) *p++ = v>>8, *p++ = v
337 static int DumpDouble(register struct iod *iodp, char tag,
338 register afs_uint32 value1, register afs_uint32 value2)
341 register byte *p = (unsigned char *) tbuffer;
345 return((iod_Write(iodp, tbuffer, 9) == 9)? 0: VOLSERDUMPERROR);
348 static int DumpInt32(register struct iod *iodp, char tag,
349 register afs_uint32 value)
352 register byte *p = (unsigned char *) tbuffer;
355 return((iod_Write(iodp, tbuffer, 5) == 5)? 0: VOLSERDUMPERROR);
358 static int DumpArrayInt32(register struct iod *iodp, char tag,
359 register afs_uint32 *array, register int nelem)
362 register afs_uint32 v ;
364 register byte *p = (unsigned char *) tbuffer;
367 code = iod_Write(iodp, tbuffer, 3);
368 if (code != 3) return VOLSERDUMPERROR;
370 p = (unsigned char *) tbuffer;
371 v = *array++;/*this was register */
374 code = iod_Write(iodp, tbuffer, 4);
375 if(code != 4) return VOLSERDUMPERROR;
380 static int DumpShort(register struct iod *iodp, char tag, unsigned int value)
383 register byte *p = (unsigned char *) tbuffer;
387 return((iod_Write(iodp, tbuffer, 3) == 3)? 0: VOLSERDUMPERROR);
390 static int DumpBool(register struct iod *iodp, char tag, unsigned int value)
393 register byte *p = (unsigned char *) tbuffer;
396 return((iod_Write(iodp, tbuffer, 2) == 2)? 0: VOLSERDUMPERROR);
399 static int DumpString(register struct iod *iodp, char tag, register char *s)
403 code = iod_Write(iodp, &tag, 1);
404 if(code != 1) return VOLSERDUMPERROR;
406 code = iod_Write(iodp, s, n);
407 if(code != n) return VOLSERDUMPERROR;
411 static int DumpByteString(register struct iod *iodp, char tag,
412 register byte *bs, register int nbytes)
416 code = iod_Write(iodp, &tag, 1);
417 if(code != 1) return VOLSERDUMPERROR;
418 code = iod_Write(iodp, (char *)bs, nbytes);
419 if(code != nbytes) return VOLSERDUMPERROR;
423 static int DumpFile(struct iod *iodp, char tag, int vnode, FdHandle_t *handleP)
425 int code = 0, lcode = 0, error = 0;
426 afs_int32 pad = 0, offset;
427 int n, nbytes, howMany, howBig;
432 #include <sys/statfs.h>
433 struct statfs tstatfs;
437 howBig = _filelength(handleP->fd_fd);
441 fstat(handleP->fd_fd, &status);
442 howBig = status.st_size;
445 /* Unfortunately in AIX valuable fields such as st_blksize are
446 * gone from the stat structure.
448 fstatfs(handleP->fd_fd, &tstatfs);
449 howMany = tstatfs.f_bsize;
451 howMany = status.st_blksize;
452 #endif /* AFS_AIX_ENV */
453 #endif /* AFS_NT40_ENV */
456 size = FDH_SIZE(handleP);
457 code = DumpInt32(iodp, tag, size);
459 return VOLSERDUMPERROR;
462 p = (unsigned char *) malloc(howMany);
464 Log("1 Volser: DumpFile: no memory");
465 return VOLSERDUMPERROR;
468 for (nbytes = size; (nbytes && !error); nbytes -= howMany) {
469 if (nbytes < howMany)
472 /* Read the data - unless we know we can't */
473 n = (lcode ? 0 : FDH_READ(handleP, p, howMany));
475 /* If read any good data and we null padded previously, log the
476 * amount that we had null padded.
478 if ((n > 0) && pad) {
479 Log("1 Volser: DumpFile: Null padding file %d bytes at offset %u\n",
484 /* If didn't read enough data, null padd the rest of the buffer. This
485 * can happen if, for instance, the media has some bad spots. We don't
486 * want to quit the dump, so we start null padding.
489 /* Record the read error */
492 Log("1 Volser: DumpFile: Error %d reading inode %s for vnode %d\n",
493 errno, PrintInode(NULL, handleP->fd_ih->ih_ino), vnode);
496 Log("1 Volser: DumpFile: Error reading inode %s for vnode %d\n",
497 PrintInode(NULL, handleP->fd_ih->ih_ino), vnode);
500 /* Pad the rest of the buffer with zeros. Remember offset we started
501 * padding. Keep total tally of padding.
503 memset(p+n, 0, howMany-n);
505 offset = (howBig - nbytes) + n;
508 /* Now seek over the data we could not get. An error here means we
509 * can't do the next read.
511 lcode = FDH_SEEK(handleP, ((size - nbytes) + howMany), SEEK_SET);
512 if (lcode != ((size - nbytes) + howMany)) {
514 Log("1 Volser: DumpFile: Error %d seeking in inode %s for vnode %d\n",
515 errno, PrintInode(NULL, handleP->fd_ih->ih_ino), vnode);
518 Log("1 Volser: DumpFile: Error seeking in inode %s for vnode %d\n",
519 PrintInode(NULL, handleP->fd_ih->ih_ino), vnode);
528 /* Now write the data out */
529 if (iod_Write(iodp, (char *)p, howMany) != howMany)
530 error = VOLSERDUMPERROR;
534 if (pad) { /* Any padding we hadn't reported yet */
535 Log("1 Volser: DumpFile: Null padding file: %d bytes at offset %u\n",
543 static int DumpVolumeHeader(register struct iod *iodp, register Volume *vp)
546 static char nullString[1] = ""; /*The ``contents'' of motd*/
548 if (!code) code = DumpTag(iodp, D_VOLUMEHEADER);
549 if (!code) {code = DumpInt32(iodp, 'i',V_id(vp));}
550 if (!code) code = DumpInt32(iodp, 'v',V_stamp(vp).version);
551 if (!code) code = DumpString(iodp, 'n',V_name(vp));
552 if (!code) code = DumpBool(iodp, 's',V_inService(vp));
553 if (!code) code = DumpBool(iodp, 'b',V_blessed(vp));
554 if (!code) code = DumpInt32(iodp, 'u',V_uniquifier(vp));
555 if (!code) code = DumpByte(iodp, 't',(byte)V_type(vp));
556 if (!code){ code = DumpInt32(iodp, 'p',V_parentId(vp));}
557 if (!code) code = DumpInt32(iodp, 'c',V_cloneId(vp));
558 if (!code) code = DumpInt32(iodp, 'q',V_maxquota(vp));
559 if (!code) code = DumpInt32(iodp, 'm',V_minquota(vp));
560 if (!code) code = DumpInt32(iodp, 'd',V_diskused(vp));
561 if (!code) code = DumpInt32(iodp, 'f',V_filecount(vp));
562 if (!code) code = DumpInt32(iodp, 'a', V_accountNumber(vp));
563 if (!code) code = DumpInt32(iodp, 'o', V_owner(vp));
564 if (!code) code = DumpInt32(iodp, 'C',V_creationDate(vp)); /* Rw volume creation date */
565 if (!code) code = DumpInt32(iodp, 'A',V_accessDate(vp));
566 if (!code) code = DumpInt32(iodp, 'U',V_updateDate(vp));
567 if (!code) code = DumpInt32(iodp, 'E',V_expirationDate(vp));
568 if (!code) code = DumpInt32(iodp, 'B',V_backupDate(vp)); /* Rw volume backup clone date */
569 if (!code) code = DumpString(iodp, 'O',V_offlineMessage(vp));
571 * We do NOT dump the detailed volume statistics residing in the old
572 * motd field, since we cannot tell from the info in a dump whether
573 * statistics data has been put there. Instead, we dump a null string,
574 * just as if that was what the motd contained.
576 if (!code) code = DumpString(iodp, 'M', nullString);
577 if (!code) code = DumpArrayInt32(iodp, 'W', (afs_uint32 *)V_weekUse(vp), sizeof(V_weekUse(vp))/sizeof(V_weekUse(vp)[0]));
578 if (!code) code = DumpInt32(iodp, 'D', V_dayUseDate(vp));
579 if (!code) code = DumpInt32(iodp, 'Z', V_dayUse(vp));
583 static int DumpEnd(register struct iod *iodp)
585 return(DumpInt32(iodp, D_DUMPEND, DUMPENDMAGIC));
588 /* Guts of the dump code */
590 /* Dump a whole volume */
591 int DumpVolume(register struct rx_call *call, register Volume *vp,
592 afs_int32 fromtime, int dumpAllDirs)
596 register struct iod *iodp = &iod;
597 iod_Init(iodp, call);
599 if (!code) code = DumpDumpHeader(iodp, vp, fromtime);
601 if (!code) code = DumpPartial(iodp, vp, fromtime, dumpAllDirs);
603 /* hack follows. Errors should be handled quite differently in this version of dump than they used to be.*/
604 if (rx_Error(iodp->call)) {
605 Log("1 Volser: DumpVolume: Rx call failed during dump, error %d\n", rx_Error(iodp->call));
606 return VOLSERDUMPERROR;
608 if (!code) code = DumpEnd(iodp);
613 /* Dump a volume to multiple places*/
614 int DumpVolMulti(struct rx_call **calls, int ncalls, Volume *vp,
615 afs_int32 fromtime, int dumpAllDirs, int *codes)
619 iod_InitMulti(&iod, calls, ncalls, codes);
621 if (!code) code = DumpDumpHeader(&iod, vp, fromtime);
622 if (!code) code = DumpPartial(&iod, vp, fromtime, dumpAllDirs);
623 if (!code) code = DumpEnd(&iod);
627 /* A partial dump (no dump header) */
628 static int DumpPartial(register struct iod *iodp, register Volume *vp,
629 afs_int32 fromtime, int dumpAllDirs)
632 if (!code) code = DumpVolumeHeader(iodp, vp);
633 if (!code) code = DumpVnodeIndex(iodp, vp, vLarge, fromtime, dumpAllDirs);
634 if (!code) code = DumpVnodeIndex(iodp, vp, vSmall, fromtime, 0);
638 static int DumpVnodeIndex(register struct iod *iodp, Volume *vp,
639 VnodeClass class, afs_int32 fromtime, int forcedump)
641 register int code = 0;
642 register struct VnodeClassInfo *vcp = &VnodeClassInfo[class];
643 char buf[SIZEOF_LARGEDISKVNODE];
644 struct VnodeDiskObject *vnode = (struct VnodeDiskObject *) buf;
645 StreamHandle_t *file;
649 register int vnodeIndex, nVnodes;
651 fdP = IH_OPEN(vp->vnodeIndex[class].handle);
653 file = FDH_FDOPEN(fdP, "r+");
654 assert(file != NULL);
655 size = OS_SIZE(fdP->fd_fd);
657 nVnodes = (size / vcp->diskSize) - 1;
659 assert((nVnodes+1)*vcp->diskSize == size)
660 assert(STREAM_SEEK(file, vcp->diskSize, 0) == 0)
663 for (vnodeIndex = 0; nVnodes && STREAM_READ(vnode, vcp->diskSize, 1, file) == 1 && !code;
664 nVnodes--, vnodeIndex++) {
665 flag = forcedump || (vnode->serverModifyTime >= fromtime);
666 /* Note: the >= test is very important since some old volumes may not have
667 a serverModifyTime. For an epoch dump, this results in 0>=0 test, which
668 does dump the file! */
669 if (!code) code = DumpVnode(iodp, vnode, bitNumberToVnodeNumber(vnodeIndex, class), flag);
670 if (!flag) IOMGR_Poll(); /* if we dont' xfr data, but scan instead, could lose conn */
677 static int DumpDumpHeader(register struct iod *iodp, register Volume *vp,
681 int UseLatestReadOnlyClone = 1;
682 afs_int32 dumpTimes[2];
683 iodp->device = vp->device;
684 iodp->parentId = V_parentId(vp);
685 iodp->dumpPartition = vp->partition;
686 if (!code) code = DumpDouble(iodp, D_DUMPHEADER, DUMPBEGINMAGIC, DUMPVERSION);
687 if (!code) code = DumpInt32(iodp, 'v', UseLatestReadOnlyClone? V_id(vp): V_parentId(vp));
688 if (!code) code = DumpString(iodp, 'n',V_name(vp));
689 dumpTimes[0] = fromtime;
690 dumpTimes[1] = V_backupDate(vp); /* Until the time the clone was made */
691 if (!code) code = DumpArrayInt32(iodp, 't', (afs_uint32 *)dumpTimes, 2);
695 static int DumpVnode(register struct iod *iodp, struct VnodeDiskObject *v,
696 int vnodeNumber, int dumpEverything)
702 if (!v || v->type == vNull)
704 if (!code) code = DumpDouble(iodp, D_VNODE, vnodeNumber, v->uniquifier);
707 if (!code) code = DumpByte(iodp, 't',(byte)v->type);
708 if (!code) code = DumpShort(iodp, 'l', v->linkCount); /* May not need this */
709 if (!code) code = DumpInt32(iodp, 'v', v->dataVersion);
710 if (!code) code = DumpInt32(iodp, 'm', v->unixModifyTime);
711 if (!code) code = DumpInt32(iodp, 'a', v->author);
712 if (!code) code = DumpInt32(iodp, 'o', v->owner);
713 if (!code && v->group) code = DumpInt32(iodp, 'g', v->group); /* default group is 0 */
714 if (!code) code = DumpShort(iodp, 'b', v->modeBits);
715 if (!code) code = DumpInt32(iodp, 'p', v->parent);
716 if (!code) code = DumpInt32(iodp, 's', v->serverModifyTime);
717 if (v->type == vDirectory) {
718 acl_HtonACL(VVnodeDiskACL(v));
719 if (!code) code = DumpByteString(iodp, 'A', (byte *) VVnodeDiskACL(v), VAclDiskSize(v));
721 if (VNDISK_GET_INO(v)) {
722 IH_INIT(ihP, iodp->device, iodp->parentId, VNDISK_GET_INO(v));
725 Log("1 Volser: DumpVnode: dump: Unable to open inode %d for vnode %d; not dumped, error %d\n",
726 VNDISK_GET_INO(v), vnodeNumber, errno);
728 return VOLSERREAD_DUMPERROR;
730 code = DumpFile(iodp, 'f', vnodeNumber, fdP);
738 int ProcessIndex(Volume *vp, VnodeClass class, afs_int32 **Bufp, int *sizep,
741 int i, nVnodes, offset, code, index=0;
745 StreamHandle_t *afile;
747 struct VnodeClassInfo *vcp = &VnodeClassInfo[class];
748 char buf[SIZEOF_LARGEDISKVNODE], zero[SIZEOF_LARGEDISKVNODE];
749 register struct VnodeDiskObject *vnode = (struct VnodeDiskObject *) buf;
751 memset(zero, 0, sizeof(zero)); /* zero out our proto-vnode */
752 fdP = IH_OPEN(vp->vnodeIndex[class].handle);
755 afile = FDH_FDOPEN(fdP, "r+");
759 for (i = 0; i<*sizep; i++) {
762 STREAM_SEEK(afile, Buf[i], 0);
763 code = STREAM_READ(vnode, vcp->diskSize, 1, afile);
765 if (vnode->type != vNull && VNDISK_GET_INO(vnode)) {
768 Log("RestoreVolume %d Cleanup: Removing old vnode=%d inode=%d size=%d\n",
769 V_id(vp), bitNumberToVnodeNumber(i,class),
770 VNDISK_GET_INO(vnode), vnode->length);
772 IH_DEC(V_linkHandle(vp), VNDISK_GET_INO(vnode),
776 STREAM_SEEK(afile, Buf[i], 0);
777 (void ) STREAM_WRITE(zero, vcp->diskSize, 1, afile); /* Zero it out */
783 Log("RestoreVolume Cleanup: Removed %d inodes for volume %d\n",
786 STREAM_FLUSH(afile); /* ensure 0s are on the disk */
787 OS_SYNC(afile->str_fd);
789 size = OS_SIZE(fdP->fd_fd);
791 nVnodes = (size <= vcp->diskSize ? 0 :
792 size-vcp->diskSize) >> vcp->logSize;
794 Buf = (afs_int32 *) malloc(nVnodes * sizeof(afs_int32));
795 if (Buf == NULL) return 1;
796 memset((char *)Buf, 0, nVnodes * sizeof(afs_int32));
797 STREAM_SEEK(afile, offset = vcp->diskSize, 0);
799 code = STREAM_READ(vnode, vcp->diskSize, 1, afile);
803 if (vnode->type != vNull && VNDISK_GET_INO(vnode)) {
804 Buf[(offset >> vcp->logSize)-1] = offset;
807 offset += vcp->diskSize;
819 int RestoreVolume(register struct rx_call *call, Volume *avp,
820 int incremental, struct restoreCookie *cookie)
823 struct DumpHeader header;
825 Error error = 0, vupdate;
828 register struct iod *iodp = &iod;
829 afs_int32 *b1=0, *b2=0;
830 int s1=0, s2=0, delo=0, tdelo;
833 iod_Init(iodp, call);
836 if (!ReadDumpHeader(iodp, &header)){
837 Log("1 Volser: RestoreVolume: Error reading header file for dump; aborted\n");
838 return VOLSERREAD_DUMPERROR;
840 if (iod_getc(iodp) != D_VOLUMEHEADER){
841 Log("1 Volser: RestoreVolume: Volume header missing from dump; not restored\n");
842 return VOLSERREAD_DUMPERROR;
844 if(ReadVolumeHeader(iodp, &vol) == VOLSERREAD_DUMPERROR) return VOLSERREAD_DUMPERROR;
846 delo = ProcessIndex(vp, vLarge, &b1, &s1, 0);
847 if (!delo) delo = ProcessIndex(vp, vSmall, &b2, &s2, 0);
849 if (b1) free((char *)b1);
850 if (b2) free((char *)b2);
854 strncpy(vol.name,cookie->name,VOLSER_OLDMAXVOLNAME);
855 vol.type = cookie->type;
856 vol.cloneId = cookie->clone;
857 vol.parentId = cookie->parent;
862 if (ReadVnodes(iodp, vp, 0, b1, s1, b2, s2, tdelo)) {
863 error = VOLSERREAD_DUMPERROR;
866 tag = iod_getc(iodp);
867 if (tag != D_VOLUMEHEADER)
869 if (ReadVolumeHeader(iodp, &vol) == VOLSERREAD_DUMPERROR) {
870 error = VOLSERREAD_DUMPERROR;
875 if (tag != D_DUMPEND || !ReadInt32(iodp, &endMagic) || endMagic != DUMPENDMAGIC){
876 Log("1 Volser: RestoreVolume: End of dump not found; restore aborted\n");
877 error = VOLSERREAD_DUMPERROR;
882 if (iod_getc(iodp) != EOF) {
883 Log("1 Volser: RestoreVolume: Unrecognized postamble in dump; restore aborted\n");
884 error = VOLSERREAD_DUMPERROR;
889 ProcessIndex(vp, vLarge, &b1, &s1, 1);
890 ProcessIndex(vp, vSmall, &b2, &s2, 1);
894 ClearVolumeStats(&vol);
895 CopyVolumeHeader(&vol, &V_disk(vp));
897 VUpdateVolume(&vupdate, vp);
899 Log("1 Volser: RestoreVolume: Unable to rewrite volume header; restore aborted\n");
900 error = VOLSERREAD_DUMPERROR;
904 /* Free the malloced space above */
905 if (b1) free((char *)b1);
906 if (b2) free((char *)b2);
910 static int ReadVnodes(register struct iod *iodp, Volume *vp,
911 int incremental, afs_int32 *Lbuf, afs_int32 s1,
912 afs_int32 *Sbuf, afs_int32 s2, afs_int32 delo)
914 afs_int32 vnodeNumber;
915 char buf[SIZEOF_LARGEDISKVNODE];
917 struct VnodeDiskObject *vnode = (struct VnodeDiskObject *) buf;
918 struct VnodeDiskObject oldvnode;
921 struct VnodeClassInfo *vcp;
926 tag = iod_getc(iodp);
927 V_pref(vp, nearInode);
928 while (tag == D_VNODE) {
930 memset(buf, 0, sizeof (buf));
931 if (!ReadInt32(iodp, (afs_uint32 *)&vnodeNumber))
934 ReadInt32(iodp, &vnode->uniquifier);
935 while ((tag = iod_getc(iodp)) > D_MAX && tag != EOF) {
939 vnode->type = (VnodeType) iod_getc(iodp);
944 ReadShort(iodp, &tlc);
945 vnode->linkCount = (signed int)tlc;
949 ReadInt32(iodp, &vnode->dataVersion);
952 ReadInt32(iodp, &vnode->unixModifyTime);
955 ReadInt32(iodp, &vnode->serverModifyTime);
958 ReadInt32(iodp, &vnode->author);
961 ReadInt32(iodp, &vnode->owner);
964 ReadInt32(iodp, (afs_uint32 *)&vnode->group);
967 unsigned short modeBits;
968 ReadShort(iodp, &modeBits);
969 vnode->modeBits = (unsigned int)modeBits;
973 ReadInt32(iodp, &vnode->parent);
976 ReadByteString(iodp, (byte *)VVnodeDiskACL(vnode),
977 VAclDiskSize(vnode));
978 acl_NtohACL(VVnodeDiskACL(vnode));
984 ino = IH_CREATE(V_linkHandle(vp),
986 VPartitionPath(V_partition(vp)),
987 nearInode, V_parentId(vp), vnodeNumber,
990 if (!VALID_INO(ino)) {
991 perror("unable to allocate inode");
992 Log("1 Volser: ReadVnodes: Restore aborted\n");
993 return VOLSERREAD_DUMPERROR;
996 VNDISK_SET_INO(vnode, ino);
997 IH_INIT(tmpH, vp->device, V_parentId(vp), ino);
1001 return VOLSERREAD_DUMPERROR;
1003 vnode->length = volser_WriteFile(vnodeNumber, iodp, fdP,
1005 FDH_REALLYCLOSE(fdP);
1008 Log("1 Volser: ReadVnodes: IDEC inode %d\n", ino);
1009 IH_DEC(V_linkHandle(vp), ino, V_parentId(vp));
1010 return VOLSERREAD_DUMPERROR;
1017 class = vnodeIdToClass(vnodeNumber);
1018 vcp = &VnodeClassInfo[class];
1020 /* Mark this vnode as in this dump - so we don't delete it later */
1022 idx = (vnodeIndexOffset(vcp,vnodeNumber) >> vcp->logSize) - 1;
1023 if (class == vLarge) {
1024 if (Lbuf && (idx < s1)) Lbuf[idx] = 0;
1026 if (Sbuf && (idx < s2)) Sbuf[idx] = 0;
1031 FdHandle_t *fdP = IH_OPEN(vp->vnodeIndex[class].handle);
1033 Log("1 Volser: ReadVnodes: Error opening vnode index; restore aborted\n");
1034 return VOLSERREAD_DUMPERROR;
1036 if (FDH_SEEK(fdP, vnodeIndexOffset(vcp, vnodeNumber), SEEK_SET) < 0) {
1037 Log("1 Volser: ReadVnodes: Error seeking into vnode index; restore aborted\n");
1038 FDH_REALLYCLOSE(fdP);
1039 return VOLSERREAD_DUMPERROR;
1041 if (FDH_READ(fdP, &oldvnode, sizeof(oldvnode)) == sizeof(oldvnode)) {
1042 if (oldvnode.type != vNull && VNDISK_GET_INO(&oldvnode)) {
1043 IH_DEC(V_linkHandle(vp), VNDISK_GET_INO(&oldvnode),
1047 vnode->vnodeMagic = vcp->magic;
1048 if (FDH_SEEK(fdP, vnodeIndexOffset(vcp, vnodeNumber), SEEK_SET) < 0) {
1049 Log("1 Volser: ReadVnodes: Error seeking into vnode index; restore aborted\n");
1050 FDH_REALLYCLOSE(fdP);
1051 return VOLSERREAD_DUMPERROR;
1053 if (FDH_WRITE(fdP, vnode, vcp->diskSize) != vcp->diskSize) {
1054 Log("1 Volser: ReadVnodes: Error writing vnode index; restore aborted\n");
1055 FDH_REALLYCLOSE(fdP);
1056 return VOLSERREAD_DUMPERROR;
1061 iod_ungetc(iodp, tag);
1068 /* called with disk file only. Note that we don't have to worry about rx_Read
1069 * needing to read an ungetc'd character, since the ReadInt32 will have read
1072 static bit32 volser_WriteFile(int vn, struct iod *iodp, FdHandle_t *handleP,
1076 afs_uint32 filesize;
1078 register afs_uint32 size = 8192;
1079 register afs_uint32 nbytes;
1084 if (!ReadInt32(iodp, &filesize)) {
1088 p = (unsigned char *) malloc(size);
1093 for (nbytes = filesize; nbytes; nbytes -= size) {
1097 if ((code = iod_Read(iodp, p, size)) != size) {
1098 Log("1 Volser: WriteFile: Error reading dump file %d size=%d nbytes=%d (%d of %d); restore aborted\n", vn, filesize, nbytes, code, size);
1102 code = FDH_WRITE(handleP, p, size);
1103 if (code > 0) written += code;
1105 Log("1 Volser: WriteFile: Error creating file in volume; restore aborted\n");
1114 static int ReadDumpHeader(register struct iod *iodp, struct DumpHeader *hp)
1117 afs_uint32 beginMagic;
1118 if (iod_getc(iodp) != D_DUMPHEADER || !ReadInt32(iodp, &beginMagic)
1119 || !ReadInt32(iodp, (afs_uint32 *)&hp->version)
1120 || beginMagic != DUMPBEGINMAGIC
1124 while ((tag = iod_getc(iodp)) > D_MAX) {
1125 unsigned short arrayLength;
1129 if (!ReadInt32(iodp, &hp->volumeId))
1133 ReadString(iodp, hp->volumeName, sizeof(hp->volumeName));
1136 if (!ReadShort(iodp, &arrayLength))
1138 hp->nDumpTimes = (arrayLength >> 1);
1139 for (i = 0; i<hp->nDumpTimes; i++)
1140 if (!ReadInt32(iodp, (afs_uint32 *)&hp->dumpTimes[i].from)
1141 || !ReadInt32(iodp, (afs_uint32 *)&hp->dumpTimes[i].to))
1146 if (!hp->volumeId || !hp->nDumpTimes) {
1149 iod_ungetc(iodp, tag);