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>
29 #include <afs/assert.h>
32 #include <afs/afsint.h>
34 #include <afs/errors.h>
37 #include <afs/ihandle.h>
38 #include <afs/vnode.h>
39 #include <afs/volume.h>
40 #include <afs/partition.h>
42 #include <afs/fssync.h>
49 /* This iod stuff is a silly little package to emulate the old qi_in stuff, which
50 emulated the stdio stuff. There is a big assumption here, that the
51 rx_Read will never be called directly, by a routine like readFile, when
52 there is an old character that was pushed back with iod_ungetc. This
53 is really bletchy, and is here for compatibility only. Eventually,
54 we should define a volume format that doesn't require
55 the pushing back of characters (i.e. characters should not double both
56 as an end marker and a begin marker) */
58 struct rx_call *call; /* call to which to write, might be an array */
59 int device; /* dump device ID for volume */
60 int parentId; /* dump parent ID for volume */
61 struct DiskPartition *dumpPartition; /* Dump partition. */
62 struct rx_call **calls; /* array of pointers to calls */
63 int ncalls; /* how many calls/codes in array */
64 int *codes; /* one return code for each call */
65 char haveOldChar; /* state for pushing back a character */
70 /* Forward Declarations */
71 static int DumpDumpHeader(register struct iod *iodp, register Volume *vp,
73 static int DumpPartial(register struct iod *iodp, register Volume *vp,
74 afs_int32 fromtime, int dumpAllDirs);
75 static int DumpVnodeIndex(register struct iod *iodp, Volume *vp,
76 VnodeClass class, afs_int32 fromtime, int forcedump);
77 static int DumpVnode(register struct iod *iodp, struct VnodeDiskObject *v,
78 int vnodeNumber, int dumpEverything);
79 static int ReadDumpHeader(register struct iod *iodp, struct DumpHeader *hp);
80 static int ReadVnodes(register struct iod *iodp, Volume *vp,
81 int incremental, afs_int32 *Lbuf, afs_int32 s1,
82 afs_int32 *Sbuf, afs_int32 s2, afs_int32 delo);
83 static bit32 volser_WriteFile(int vn, struct iod *iodp, FdHandle_t *handleP,
87 static void iod_Init(register struct iod *iodp, register struct rx_call *call)
90 iodp->haveOldChar = 0;
92 iodp->calls = (struct rx_call **) 0;
95 static void iod_InitMulti(struct iod *iodp, struct rx_call **calls, int ncalls,
100 iodp->haveOldChar = 0;
101 iodp->ncalls = ncalls;
103 iodp->call = (struct rx_call *) 0;
106 /* N.B. iod_Read doesn't check for oldchar (see previous comment) */
107 #define iod_Read(iodp, buf, nbytes) rx_Read((iodp)->call, buf, nbytes)
109 /* For the single dump case, it's ok to just return the "bytes written"
110 * that rx_Write returns, since all the callers of iod_Write abort when
111 * the returned value is less than they expect. For the multi dump case,
112 * I don't think we want half the replicas to go bad just because one
113 * connection timed out, but if they all time out, then we should give up.
115 static int iod_Write(struct iod *iodp, char *buf, int nbytes)
120 assert ((iodp->call && iodp->ncalls == 1 && !iodp->calls) ||
121 (!iodp->call && iodp->ncalls >= 1 && iodp->calls));
124 code = rx_Write(iodp->call, buf, nbytes);
128 for (i=0; i < iodp->ncalls; i++) {
129 if (iodp->calls[i] && !iodp->codes[i]) {
130 code = rx_Write(iodp->calls[i], buf, nbytes);
131 if (code != nbytes) { /* everything gets merged into a single error */
132 iodp->codes[i] = VOLSERDUMPERROR; /* but that's exactly what the */
133 } /* standard dump does, anyways */
138 } /* for all calls */
145 static void iod_ungetc(struct iod *iodp, int achar)
147 iodp->oldChar = achar;
148 iodp->haveOldChar = 1;
151 static int iod_getc(register struct iod *iodp)
155 if (iodp->haveOldChar) {
156 iodp->haveOldChar = 0;
157 return iodp->oldChar;
159 if (iod_Read(iodp, &t, 1) == 1) return t;
163 static int ReadShort(register struct iod *iodp, register unsigned short *sp)
172 static int ReadInt32(register struct iod *iodp, afs_uint32 *lp)
174 afs_uint32 register b3,b2,b1,b0;
179 *lp = (((((b3<<8)|b2)<<8)|b1)<<8)|b0;
183 static void ReadString(register struct iod *iodp, register char *to,
188 if ((*to++ = iod_getc(iodp)) == 0)
192 while ((c = iod_getc(iodp)) && c != EOF);
197 static void ReadByteString(register struct iod *iodp, register byte *to,
201 *to++ = iod_getc(iodp);
204 static int ReadVolumeHeader(register struct iod *iodp, VolumeDiskData *vol)
208 bzero(vol, sizeof(*vol));
209 while ((tag = iod_getc(iodp)) > D_MAX && tag != EOF) {
212 if(!ReadInt32(iodp, &vol->id)) return VOLSERREAD_DUMPERROR;
215 if(!ReadInt32(iodp, &trash)) return VOLSERREAD_DUMPERROR;
218 ReadString(iodp, vol->name, sizeof(vol->name));
219 /*this means the name of the retsored volume could be possibly different. In conjunction with SAFSVolSignalRestore */
222 vol->inService = iod_getc(iodp );
225 vol->blessed = iod_getc(iodp );
228 if(!ReadInt32(iodp, &vol->uniquifier)) return VOLSERREAD_DUMPERROR;
231 vol->type = iod_getc(iodp );
234 if(!ReadInt32(iodp, &vol->parentId)) return VOLSERREAD_DUMPERROR;
237 if(!ReadInt32(iodp, &vol->cloneId)) return VOLSERREAD_DUMPERROR;
240 if(!ReadInt32(iodp, (afs_uint32 *)&vol->maxquota)) return VOLSERREAD_DUMPERROR;
243 if(!ReadInt32(iodp, (afs_uint32 *)&vol->minquota)) return VOLSERREAD_DUMPERROR;
246 if(!ReadInt32(iodp, (afs_uint32 *)&vol->diskused)) return VOLSERREAD_DUMPERROR; /* Bogus: should calculate this */
249 if(!ReadInt32(iodp, (afs_uint32 *)&vol->filecount)) return VOLSERREAD_DUMPERROR;
252 if(!ReadInt32(iodp, &vol->accountNumber)) return VOLSERREAD_DUMPERROR;
255 if(!ReadInt32(iodp, &vol->owner)) return VOLSERREAD_DUMPERROR;
258 if(!ReadInt32(iodp, &vol->creationDate)) return VOLSERREAD_DUMPERROR;
261 if(!ReadInt32(iodp, &vol->accessDate)) return VOLSERREAD_DUMPERROR;
264 if(!ReadInt32(iodp, &vol->updateDate)) return VOLSERREAD_DUMPERROR;
267 if(!ReadInt32(iodp, &vol->expirationDate)) return VOLSERREAD_DUMPERROR;
270 if(!ReadInt32(iodp, &vol->backupDate)) return VOLSERREAD_DUMPERROR;
273 ReadString(iodp, vol->offlineMessage, sizeof(vol->offlineMessage));
277 * Detailed volume statistics are never stored in dumps,
278 * so we just restore either the null string if this volume
279 * had already been set to store statistics, or the old motd
280 * contents otherwise. It doesn't matter, since this field
281 * will soon get initialized anyway.
283 ReadString(iodp, (char *)(vol->stat_reads), VMSGSIZE);
286 unsigned short length;
289 if(!ReadShort(iodp, &length)) return VOLSERREAD_DUMPERROR;
290 for (i = 0; i<length; i++) {
291 if(!ReadInt32(iodp, &data)) return VOLSERREAD_DUMPERROR;
292 if (i < sizeof(vol->weekUse)/sizeof(vol->weekUse[0]))
293 vol->weekUse[i] = data;
298 if(!ReadInt32(iodp, &vol->dayUseDate)) return VOLSERREAD_DUMPERROR;
301 if(!ReadInt32(iodp, (afs_uint32 *)&vol->dayUse)) return VOLSERREAD_DUMPERROR;
305 iod_ungetc(iodp, tag);
309 static int DumpTag(register struct iod *iodp, register int tag)
314 return((iod_Write(iodp, &p, 1) == 1)? 0 : VOLSERDUMPERROR);
318 static int DumpByte(register struct iod *iodp, char tag, byte value)
321 register byte *p = (unsigned char *) tbuffer;
324 return((iod_Write(iodp, tbuffer, 2) == 2)? 0: VOLSERDUMPERROR);
327 #define putint32(p, v) *p++ = v>>24, *p++ = v>>16, *p++ = v>>8, *p++ = v
328 #define putshort(p, v) *p++ = v>>8, *p++ = v
330 static int DumpDouble(register struct iod *iodp, char tag,
331 register afs_uint32 value1, register afs_uint32 value2)
334 register byte *p = (unsigned char *) tbuffer;
338 return((iod_Write(iodp, tbuffer, 9) == 9)? 0: VOLSERDUMPERROR);
341 static int DumpInt32(register struct iod *iodp, char tag,
342 register afs_uint32 value)
345 register byte *p = (unsigned char *) tbuffer;
348 return((iod_Write(iodp, tbuffer, 5) == 5)? 0: VOLSERDUMPERROR);
351 static int DumpArrayInt32(register struct iod *iodp, char tag,
352 register afs_uint32 *array, register int nelem)
355 register afs_uint32 v ;
357 register byte *p = (unsigned char *) tbuffer;
360 code = iod_Write(iodp, tbuffer, 3);
361 if (code != 3) return VOLSERDUMPERROR;
363 p = (unsigned char *) tbuffer;
364 v = *array++;/*this was register */
367 code = iod_Write(iodp, tbuffer, 4);
368 if(code != 4) return VOLSERDUMPERROR;
373 static int DumpShort(register struct iod *iodp, char tag, unsigned int value)
376 register byte *p = (unsigned char *) tbuffer;
380 return((iod_Write(iodp, tbuffer, 3) == 3)? 0: VOLSERDUMPERROR);
383 static int DumpBool(register struct iod *iodp, char tag, unsigned int value)
386 register byte *p = (unsigned char *) tbuffer;
389 return((iod_Write(iodp, tbuffer, 2) == 2)? 0: VOLSERDUMPERROR);
392 static int DumpString(register struct iod *iodp, char tag, register char *s)
396 code = iod_Write(iodp, &tag, 1);
397 if(code != 1) return VOLSERDUMPERROR;
399 code = iod_Write(iodp, s, n);
400 if(code != n) return VOLSERDUMPERROR;
404 static int DumpByteString(register struct iod *iodp, char tag,
405 register byte *bs, register int nbytes)
409 code = iod_Write(iodp, &tag, 1);
410 if(code != 1) return VOLSERDUMPERROR;
411 code = iod_Write(iodp, (char *)bs, nbytes);
412 if(code != nbytes) return VOLSERDUMPERROR;
416 static int DumpFile(struct iod *iodp, char tag, int vnode, FdHandle_t *handleP)
418 int code = 0, lcode = 0, error = 0;
419 afs_int32 pad = 0, offset;
420 int n, nbytes, howMany;
425 #include <sys/statfs.h>
426 struct statfs tstatfs;
430 howMany = 4096; /* Page size */
432 fstat(handleP->fd_fd, &status);
434 /* Unfortunately in AIX valuable fields such as st_blksize are
435 * gone from the stat structure.
437 fstatfs(handleP->fd_fd, &tstatfs);
438 howMany = tstatfs.f_bsize;
440 howMany = status.st_blksize;
442 #endif /* AFS_NT40_ENV */
444 size = FDH_SIZE(handleP);
445 code = DumpInt32(iodp, tag, size);
447 return VOLSERDUMPERROR;
450 p = (unsigned char *) malloc(howMany);
452 Log("1 Volser: DumpFile: no memory");
453 return VOLSERDUMPERROR;
456 for (nbytes = size; (nbytes && !error); nbytes -= howMany) {
457 if (nbytes < howMany)
460 /* Read the data - unless we know we can't */
461 n = (lcode ? 0 : FDH_READ(handleP, p, howMany));
463 /* If read any good data and we null padded previously, log the
464 * amount that we had null padded.
466 if ((n > 0) && pad) {
467 Log("1 Volser: DumpFile: Null padding file %d bytes at offset %u\n",
472 /* If didn't read enough data, null padd the rest of the buffer. This
473 * can happen if, for instance, the media has some bad spots. We don't
474 * want to quit the dump, so we start null padding.
477 /* Record the read error */
480 Log("1 Volser: DumpFile: Error %d reading inode %s for vnode %d\n",
481 errno, PrintInode(NULL, handleP->fd_ih->ih_ino), vnode);
484 Log("1 Volser: DumpFile: Error reading inode %s for vnode %d\n",
485 PrintInode(NULL, handleP->fd_ih->ih_ino), vnode);
488 /* Pad the rest of the buffer with zeros. Remember offset we started
489 * padding. Keep total tally of padding.
491 bzero(p+n, howMany-n);
493 offset = (status.st_size - nbytes) + n;
496 /* Now seek over the data we could not get. An error here means we
497 * can't do the next read.
499 lcode = FDH_SEEK(handleP, ((size - nbytes) + howMany), SEEK_SET);
500 if (lcode != ((size - nbytes) + howMany)) {
502 Log("1 Volser: DumpFile: Error %d seeking in inode %s for vnode %d\n",
503 errno, PrintInode(NULL, handleP->fd_ih->ih_ino), vnode);
506 Log("1 Volser: DumpFile: Error seeking in inode %s for vnode %d\n",
507 PrintInode(NULL, handleP->fd_ih->ih_ino), vnode);
516 /* Now write the data out */
517 if (iod_Write(iodp, (char *)p, howMany) != howMany)
518 error = VOLSERDUMPERROR;
522 if (pad) { /* Any padding we hadn't reported yet */
523 Log("1 Volser: DumpFile: Null padding file: %d bytes at offset %u\n",
531 static int DumpVolumeHeader(register struct iod *iodp, register Volume *vp)
534 static char nullString[1] = ""; /*The ``contents'' of motd*/
536 if (!code) code = DumpTag(iodp, D_VOLUMEHEADER);
537 if (!code) {code = DumpInt32(iodp, 'i',V_id(vp));}
538 if (!code) code = DumpInt32(iodp, 'v',V_stamp(vp).version);
539 if (!code) code = DumpString(iodp, 'n',V_name(vp));
540 if (!code) code = DumpBool(iodp, 's',V_inService(vp));
541 if (!code) code = DumpBool(iodp, 'b',V_blessed(vp));
542 if (!code) code = DumpInt32(iodp, 'u',V_uniquifier(vp));
543 if (!code) code = DumpByte(iodp, 't',(byte)V_type(vp));
544 if (!code){ code = DumpInt32(iodp, 'p',V_parentId(vp));}
545 if (!code) code = DumpInt32(iodp, 'c',V_cloneId(vp));
546 if (!code) code = DumpInt32(iodp, 'q',V_maxquota(vp));
547 if (!code) code = DumpInt32(iodp, 'm',V_minquota(vp));
548 if (!code) code = DumpInt32(iodp, 'd',V_diskused(vp));
549 if (!code) code = DumpInt32(iodp, 'f',V_filecount(vp));
550 if (!code) code = DumpInt32(iodp, 'a', V_accountNumber(vp));
551 if (!code) code = DumpInt32(iodp, 'o', V_owner(vp));
552 if (!code) code = DumpInt32(iodp, 'C',V_creationDate(vp)); /* Rw volume creation date */
553 if (!code) code = DumpInt32(iodp, 'A',V_accessDate(vp));
554 if (!code) code = DumpInt32(iodp, 'U',V_updateDate(vp));
555 if (!code) code = DumpInt32(iodp, 'E',V_expirationDate(vp));
556 if (!code) code = DumpInt32(iodp, 'B',V_backupDate(vp)); /* Rw volume backup clone date */
557 if (!code) code = DumpString(iodp, 'O',V_offlineMessage(vp));
559 * We do NOT dump the detailed volume statistics residing in the old
560 * motd field, since we cannot tell from the info in a dump whether
561 * statistics data has been put there. Instead, we dump a null string,
562 * just as if that was what the motd contained.
564 if (!code) code = DumpString(iodp, 'M', nullString);
565 if (!code) code = DumpArrayInt32(iodp, 'W', (afs_uint32 *)V_weekUse(vp), sizeof(V_weekUse(vp))/sizeof(V_weekUse(vp)[0]));
566 if (!code) code = DumpInt32(iodp, 'D', V_dayUseDate(vp));
567 if (!code) code = DumpInt32(iodp, 'Z', V_dayUse(vp));
571 static int DumpEnd(register struct iod *iodp)
573 return(DumpInt32(iodp, D_DUMPEND, DUMPENDMAGIC));
576 /* Guts of the dump code */
578 /* Dump a whole volume */
579 int DumpVolume(register struct rx_call *call, register Volume *vp,
580 afs_int32 fromtime, int dumpAllDirs)
584 register struct iod *iodp = &iod;
585 iod_Init(iodp, call);
587 if (!code) code = DumpDumpHeader(iodp, vp, fromtime);
589 if (!code) code = DumpPartial(iodp, vp, fromtime, dumpAllDirs);
591 /* hack follows. Errors should be handled quite differently in this version of dump than they used to be.*/
592 if (rx_Error(iodp->call)) {
593 Log("1 Volser: DumpVolume: Rx call failed during dump, error %d\n", rx_Error(iodp->call));
594 return VOLSERDUMPERROR;
596 if (!code) code = DumpEnd(iodp);
601 /* Dump a volume to multiple places*/
602 int DumpVolMulti(struct rx_call **calls, int ncalls, Volume *vp,
603 afs_int32 fromtime, int dumpAllDirs, int *codes)
607 iod_InitMulti(&iod, calls, ncalls, codes);
609 if (!code) code = DumpDumpHeader(&iod, vp, fromtime);
610 if (!code) code = DumpPartial(&iod, vp, fromtime, dumpAllDirs);
611 if (!code) code = DumpEnd(&iod);
615 /* A partial dump (no dump header) */
616 static int DumpPartial(register struct iod *iodp, register Volume *vp,
617 afs_int32 fromtime, int dumpAllDirs)
620 if (!code) code = DumpVolumeHeader(iodp, vp);
621 if (!code) code = DumpVnodeIndex(iodp, vp, vLarge, fromtime, dumpAllDirs);
622 if (!code) code = DumpVnodeIndex(iodp, vp, vSmall, fromtime, 0);
626 static int DumpVnodeIndex(register struct iod *iodp, Volume *vp,
627 VnodeClass class, afs_int32 fromtime, int forcedump)
629 register int code = 0;
630 register struct VnodeClassInfo *vcp = &VnodeClassInfo[class];
631 char buf[SIZEOF_LARGEDISKVNODE];
632 struct VnodeDiskObject *vnode = (struct VnodeDiskObject *) buf;
633 StreamHandle_t *file;
638 register int vnodeIndex, nVnodes;
640 fdP = IH_OPEN(vp->vnodeIndex[class].handle);
642 file = FDH_FDOPEN(fdP, "r+");
643 assert(file != NULL);
644 size = OS_SIZE(fdP->fd_fd);
646 nVnodes = (size / vcp->diskSize) - 1;
648 assert((nVnodes+1)*vcp->diskSize == size)
649 assert(STREAM_SEEK(file, vcp->diskSize, 0) == 0)
652 for (vnodeIndex = 0; nVnodes && STREAM_READ(vnode, vcp->diskSize, 1, file) == 1 && !code;
653 nVnodes--, vnodeIndex++) {
654 flag = forcedump || (vnode->serverModifyTime >= fromtime);
655 /* Note: the >= test is very important since some old volumes may not have
656 a serverModifyTime. For an epoch dump, this results in 0>=0 test, which
657 does dump the file! */
658 if (!code) code = DumpVnode(iodp, vnode, bitNumberToVnodeNumber(vnodeIndex, class), flag);
659 if (!flag) IOMGR_Poll(); /* if we dont' xfr data, but scan instead, could lose conn */
666 static int DumpDumpHeader(register struct iod *iodp, register Volume *vp,
670 int UseLatestReadOnlyClone = 1;
671 afs_int32 dumpTimes[2];
672 iodp->device = vp->device;
673 iodp->parentId = V_parentId(vp);
674 iodp->dumpPartition = vp->partition;
675 if (!code) code = DumpDouble(iodp, D_DUMPHEADER, DUMPBEGINMAGIC, DUMPVERSION);
676 if (!code) code = DumpInt32(iodp, 'v', UseLatestReadOnlyClone? V_id(vp): V_parentId(vp));
677 if (!code) code = DumpString(iodp, 'n',V_name(vp));
678 dumpTimes[0] = fromtime;
679 dumpTimes[1] = V_backupDate(vp); /* Until the time the clone was made */
680 if (!code) code = DumpArrayInt32(iodp, 't', (afs_uint32 *)dumpTimes, 2);
684 static int DumpVnode(register struct iod *iodp, struct VnodeDiskObject *v,
685 int vnodeNumber, int dumpEverything)
691 if (!v || v->type == vNull)
693 if (!code) code = DumpDouble(iodp, D_VNODE, vnodeNumber, v->uniquifier);
696 if (!code) code = DumpByte(iodp, 't',(byte)v->type);
697 if (!code) code = DumpShort(iodp, 'l', v->linkCount); /* May not need this */
698 if (!code) code = DumpInt32(iodp, 'v', v->dataVersion);
699 if (!code) code = DumpInt32(iodp, 'm', v->unixModifyTime);
700 if (!code) code = DumpInt32(iodp, 'a', v->author);
701 if (!code) code = DumpInt32(iodp, 'o', v->owner);
702 if (!code && v->group) code = DumpInt32(iodp, 'g', v->group); /* default group is 0 */
703 if (!code) code = DumpShort(iodp, 'b', v->modeBits);
704 if (!code) code = DumpInt32(iodp, 'p', v->parent);
705 if (!code) code = DumpInt32(iodp, 's', v->serverModifyTime);
706 if (v->type == vDirectory) {
707 acl_HtonACL(VVnodeDiskACL(v));
708 if (!code) code = DumpByteString(iodp, 'A', (byte *) VVnodeDiskACL(v), VAclDiskSize(v));
710 if (VNDISK_GET_INO(v)) {
711 IH_INIT(ihP, iodp->device, iodp->parentId, VNDISK_GET_INO(v));
714 Log("1 Volser: DumpVnode: dump: Unable to open inode %d for vnode %d; not dumped, error %d\n",
715 VNDISK_GET_INO(v), vnodeNumber, errno);
717 return VOLSERREAD_DUMPERROR;
719 code = DumpFile(iodp, 'f', vnodeNumber, fdP);
727 int ProcessIndex(Volume *vp, VnodeClass class, afs_int32 **Bufp, int *sizep,
730 int i, nVnodes, offset, code, index=0;
734 StreamHandle_t *afile;
736 struct VnodeClassInfo *vcp = &VnodeClassInfo[class];
737 char buf[SIZEOF_LARGEDISKVNODE], zero[SIZEOF_LARGEDISKVNODE];
738 register struct VnodeDiskObject *vnode = (struct VnodeDiskObject *) buf;
740 bzero(zero, sizeof(zero)); /* zero out our proto-vnode */
741 fdP = IH_OPEN(vp->vnodeIndex[class].handle);
744 afile = FDH_FDOPEN(fdP, "r+");
748 for (i = 0; i<*sizep; i++) {
751 STREAM_SEEK(afile, Buf[i], 0);
752 code = STREAM_READ(vnode, vcp->diskSize, 1, afile);
754 if (vnode->type != vNull && VNDISK_GET_INO(vnode)) {
757 Log("RestoreVolume %d Cleanup: Removing old vnode=%d inode=%d size=%d\n",
758 V_id(vp), bitNumberToVnodeNumber(i,class),
759 VNDISK_GET_INO(vnode), vnode->length);
761 IH_DEC(V_linkHandle(vp), VNDISK_GET_INO(vnode),
765 STREAM_SEEK(afile, Buf[i], 0);
766 (void ) STREAM_WRITE(zero, vcp->diskSize, 1, afile); /* Zero it out */
772 Log("RestoreVolume Cleanup: Removed %d inodes for volume %d\n",
775 STREAM_FLUSH(afile); /* ensure 0s are on the disk */
776 OS_SYNC(afile->str_fd);
778 size = OS_SIZE(fdP->fd_fd);
780 nVnodes = (size <= vcp->diskSize ? 0 :
781 size-vcp->diskSize) >> vcp->logSize;
783 Buf = (afs_int32 *) malloc(nVnodes * sizeof(afs_int32));
784 if (Buf == NULL) return 1;
785 bzero((char *)Buf, nVnodes * sizeof(afs_int32));
786 STREAM_SEEK(afile, offset = vcp->diskSize, 0);
788 code = STREAM_READ(vnode, vcp->diskSize, 1, afile);
792 if (vnode->type != vNull && VNDISK_GET_INO(vnode)) {
793 Buf[(offset >> vcp->logSize)-1] = offset;
796 offset += vcp->diskSize;
808 int RestoreVolume(register struct rx_call *call, Volume *avp,
809 int incremental, struct restoreCookie *cookie)
812 struct DumpHeader header;
814 Error error = 0, vupdate;
817 register struct iod *iodp = &iod;
818 afs_int32 *b1=0, *b2=0;
819 int s1=0, s2=0, delo=0, tdelo;
822 iod_Init(iodp, call);
825 if (!ReadDumpHeader(iodp, &header)){
826 Log("1 Volser: RestoreVolume: Error reading header file for dump; aborted\n");
827 return VOLSERREAD_DUMPERROR;
829 if (iod_getc(iodp) != D_VOLUMEHEADER){
830 Log("1 Volser: RestoreVolume: Volume header missing from dump; not restored\n");
831 return VOLSERREAD_DUMPERROR;
833 if(ReadVolumeHeader(iodp, &vol) == VOLSERREAD_DUMPERROR) return VOLSERREAD_DUMPERROR;
835 delo = ProcessIndex(vp, vLarge, &b1, &s1, 0);
836 if (!delo) delo = ProcessIndex(vp, vSmall, &b2, &s2, 0);
838 if (b1) free((char *)b1);
839 if (b2) free((char *)b2);
843 strncpy(vol.name,cookie->name,VOLSER_OLDMAXVOLNAME);
844 vol.type = cookie->type;
845 vol.cloneId = cookie->clone;
846 vol.parentId = cookie->parent;
851 if (ReadVnodes(iodp, vp, 0, b1, s1, b2, s2, tdelo)) {
852 error = VOLSERREAD_DUMPERROR;
855 tag = iod_getc(iodp);
856 if (tag != D_VOLUMEHEADER)
858 if (ReadVolumeHeader(iodp, &vol) == VOLSERREAD_DUMPERROR) {
859 error = VOLSERREAD_DUMPERROR;
864 if (tag != D_DUMPEND || !ReadInt32(iodp, &endMagic) || endMagic != DUMPENDMAGIC){
865 Log("1 Volser: RestoreVolume: End of dump not found; restore aborted\n");
866 error = VOLSERREAD_DUMPERROR;
871 if (iod_getc(iodp) != EOF) {
872 Log("1 Volser: RestoreVolume: Unrecognized postamble in dump; restore aborted\n");
873 error = VOLSERREAD_DUMPERROR;
878 ProcessIndex(vp, vLarge, &b1, &s1, 1);
879 ProcessIndex(vp, vSmall, &b2, &s2, 1);
883 ClearVolumeStats(&vol);
884 CopyVolumeHeader(&vol, &V_disk(vp));
886 VUpdateVolume(&vupdate, vp);
888 Log("1 Volser: RestoreVolume: Unable to rewrite volume header; restore aborted\n");
889 error = VOLSERREAD_DUMPERROR;
893 /* Free the malloced space above */
894 if (b1) free((char *)b1);
895 if (b2) free((char *)b2);
899 static int ReadVnodes(register struct iod *iodp, Volume *vp,
900 int incremental, afs_int32 *Lbuf, afs_int32 s1,
901 afs_int32 *Sbuf, afs_int32 s2, afs_int32 delo)
903 afs_int32 vnodeNumber;
904 char buf[SIZEOF_LARGEDISKVNODE];
906 struct VnodeDiskObject *vnode = (struct VnodeDiskObject *) buf;
907 struct VnodeDiskObject oldvnode;
910 struct VnodeClassInfo *vcp;
915 tag = iod_getc(iodp);
916 V_pref(vp, nearInode);
917 while (tag == D_VNODE) {
919 bzero(buf, sizeof (buf));
920 if (!ReadInt32(iodp, (afs_uint32 *)&vnodeNumber))
923 ReadInt32(iodp, &vnode->uniquifier);
924 while ((tag = iod_getc(iodp)) > D_MAX && tag != EOF) {
928 vnode->type = (VnodeType) iod_getc(iodp);
933 ReadShort(iodp, &tlc);
934 vnode->linkCount = (signed int)tlc;
938 ReadInt32(iodp, &vnode->dataVersion);
941 ReadInt32(iodp, &vnode->unixModifyTime);
944 ReadInt32(iodp, &vnode->serverModifyTime);
947 ReadInt32(iodp, &vnode->author);
950 ReadInt32(iodp, &vnode->owner);
953 ReadInt32(iodp, (afs_uint32 *)&vnode->group);
956 unsigned short modeBits;
957 ReadShort(iodp, &modeBits);
958 vnode->modeBits = (unsigned int)modeBits;
962 ReadInt32(iodp, &vnode->parent);
965 ReadByteString(iodp, (byte *)VVnodeDiskACL(vnode),
966 VAclDiskSize(vnode));
967 acl_NtohACL(VVnodeDiskACL(vnode));
973 ino = IH_CREATE(V_linkHandle(vp),
975 VPartitionPath(V_partition(vp)),
976 nearInode, V_parentId(vp), vnodeNumber,
979 if (!VALID_INO(ino)) {
980 perror("unable to allocate inode");
981 Log("1 Volser: ReadVnodes: Restore aborted\n");
982 return VOLSERREAD_DUMPERROR;
985 VNDISK_SET_INO(vnode, ino);
986 IH_INIT(tmpH, vp->device, V_parentId(vp), ino);
990 return VOLSERREAD_DUMPERROR;
992 vnode->length = volser_WriteFile(vnodeNumber, iodp, fdP,
994 FDH_REALLYCLOSE(fdP);
997 Log("1 Volser: ReadVnodes: IDEC inode %d\n", ino);
998 IH_DEC(V_linkHandle(vp), ino, V_parentId(vp));
999 return VOLSERREAD_DUMPERROR;
1006 class = vnodeIdToClass(vnodeNumber);
1007 vcp = &VnodeClassInfo[class];
1009 /* Mark this vnode as in this dump - so we don't delete it later */
1011 idx = (vnodeIndexOffset(vcp,vnodeNumber) >> vcp->logSize) - 1;
1012 if (class == vLarge) {
1013 if (Lbuf && (idx < s1)) Lbuf[idx] = 0;
1015 if (Sbuf && (idx < s2)) Sbuf[idx] = 0;
1020 FdHandle_t *fdP = IH_OPEN(vp->vnodeIndex[class].handle);
1022 Log("1 Volser: ReadVnodes: Error opening vnode index; restore aborted\n");
1023 return VOLSERREAD_DUMPERROR;
1025 if (FDH_SEEK(fdP, vnodeIndexOffset(vcp, vnodeNumber), SEEK_SET) < 0) {
1026 Log("1 Volser: ReadVnodes: Error seeking into vnode index; restore aborted\n");
1027 FDH_REALLYCLOSE(fdP);
1028 return VOLSERREAD_DUMPERROR;
1030 if (FDH_READ(fdP, &oldvnode, sizeof(oldvnode)) == sizeof(oldvnode)) {
1031 if (oldvnode.type != vNull && VNDISK_GET_INO(&oldvnode)) {
1032 IH_DEC(V_linkHandle(vp), VNDISK_GET_INO(&oldvnode),
1036 vnode->vnodeMagic = vcp->magic;
1037 if (FDH_SEEK(fdP, vnodeIndexOffset(vcp, vnodeNumber), SEEK_SET) < 0) {
1038 Log("1 Volser: ReadVnodes: Error seeking into vnode index; restore aborted\n");
1039 FDH_REALLYCLOSE(fdP);
1040 return VOLSERREAD_DUMPERROR;
1042 if (FDH_WRITE(fdP, vnode, vcp->diskSize) != vcp->diskSize) {
1043 Log("1 Volser: ReadVnodes: Error writing vnode index; restore aborted\n");
1044 FDH_REALLYCLOSE(fdP);
1045 return VOLSERREAD_DUMPERROR;
1050 iod_ungetc(iodp, tag);
1057 /* called with disk file only. Note that we don't have to worry about rx_Read
1058 * needing to read an ungetc'd character, since the ReadInt32 will have read
1061 static bit32 volser_WriteFile(int vn, struct iod *iodp, FdHandle_t *handleP,
1065 afs_uint32 filesize;
1067 register afs_uint32 size = 8192;
1068 register afs_uint32 nbytes;
1073 if (!ReadInt32(iodp, &filesize)) {
1077 p = (unsigned char *) malloc(size);
1082 for (nbytes = filesize; nbytes; nbytes -= size) {
1086 if ((code = iod_Read(iodp, p, size)) != size) {
1087 Log("1 Volser: WriteFile: Error reading dump file %d size=%d nbytes=%d (%d of %d); restore aborted\n", vn, filesize, nbytes, code, size);
1091 code = FDH_WRITE(handleP, p, size);
1092 if (code > 0) written += code;
1094 Log("1 Volser: WriteFile: Error creating file in volume; restore aborted\n");
1103 static int ReadDumpHeader(register struct iod *iodp, struct DumpHeader *hp)
1106 afs_uint32 beginMagic;
1107 if (iod_getc(iodp) != D_DUMPHEADER || !ReadInt32(iodp, &beginMagic)
1108 || !ReadInt32(iodp, (afs_uint32 *)&hp->version)
1109 || beginMagic != DUMPBEGINMAGIC
1113 while ((tag = iod_getc(iodp)) > D_MAX) {
1114 unsigned short arrayLength;
1118 if (!ReadInt32(iodp, &hp->volumeId))
1122 ReadString(iodp, hp->volumeName, sizeof(hp->volumeName));
1125 if (!ReadShort(iodp, &arrayLength))
1127 hp->nDumpTimes = (arrayLength >> 1);
1128 for (i = 0; i<hp->nDumpTimes; i++)
1129 if (!ReadInt32(iodp, (afs_uint32 *)&hp->dumpTimes[i].from)
1130 || !ReadInt32(iodp, (afs_uint32 *)&hp->dumpTimes[i].to))
1135 if (!hp->volumeId || !hp->nDumpTimes) {
1138 iod_ungetc(iodp, tag);