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>
54 /*@printflike@*/ extern void Log(const char *format, ...);
58 /* This iod stuff is a silly little package to emulate the old qi_in stuff, which
59 emulated the stdio stuff. There is a big assumption here, that the
60 rx_Read will never be called directly, by a routine like readFile, when
61 there is an old character that was pushed back with iod_ungetc. This
62 is really bletchy, and is here for compatibility only. Eventually,
63 we should define a volume format that doesn't require
64 the pushing back of characters (i.e. characters should not double both
65 as an end marker and a begin marker) */
67 struct rx_call *call; /* call to which to write, might be an array */
68 int device; /* dump device ID for volume */
69 int parentId; /* dump parent ID for volume */
70 struct DiskPartition *dumpPartition; /* Dump partition. */
71 struct rx_call **calls; /* array of pointers to calls */
72 int ncalls; /* how many calls/codes in array */
73 int *codes; /* one return code for each call */
74 char haveOldChar; /* state for pushing back a character */
79 /* Forward Declarations */
80 static int DumpDumpHeader(register struct iod *iodp, register Volume *vp,
82 static int DumpPartial(register struct iod *iodp, register Volume *vp,
83 afs_int32 fromtime, int dumpAllDirs);
84 static int DumpVnodeIndex(register struct iod *iodp, Volume *vp,
85 VnodeClass class, afs_int32 fromtime, int forcedump);
86 static int DumpVnode(register struct iod *iodp, struct VnodeDiskObject *v,
87 int volid, int vnodeNumber, int dumpEverything);
88 static int ReadDumpHeader(register struct iod *iodp, struct DumpHeader *hp);
89 static int ReadVnodes(register struct iod *iodp, Volume *vp,
90 int incremental, afs_int32 *Lbuf, afs_int32 s1,
91 afs_int32 *Sbuf, afs_int32 s2, afs_int32 delo);
92 static bit32 volser_WriteFile(int vn, struct iod *iodp, FdHandle_t *handleP,
96 static void iod_Init(register struct iod *iodp, register struct rx_call *call)
99 iodp->haveOldChar = 0;
101 iodp->calls = (struct rx_call **) 0;
104 static void iod_InitMulti(struct iod *iodp, struct rx_call **calls, int ncalls,
109 iodp->haveOldChar = 0;
110 iodp->ncalls = ncalls;
112 iodp->call = (struct rx_call *) 0;
115 /* N.B. iod_Read doesn't check for oldchar (see previous comment) */
116 #define iod_Read(iodp, buf, nbytes) rx_Read((iodp)->call, buf, nbytes)
118 /* For the single dump case, it's ok to just return the "bytes written"
119 * that rx_Write returns, since all the callers of iod_Write abort when
120 * the returned value is less than they expect. For the multi dump case,
121 * I don't think we want half the replicas to go bad just because one
122 * connection timed out, but if they all time out, then we should give up.
124 static int iod_Write(struct iod *iodp, char *buf, int nbytes)
129 assert ((iodp->call && iodp->ncalls == 1 && !iodp->calls) ||
130 (!iodp->call && iodp->ncalls >= 1 && iodp->calls));
133 code = rx_Write(iodp->call, buf, nbytes);
137 for (i=0; i < iodp->ncalls; i++) {
138 if (iodp->calls[i] && !iodp->codes[i]) {
139 code = rx_Write(iodp->calls[i], buf, nbytes);
140 if (code != nbytes) { /* everything gets merged into a single error */
141 iodp->codes[i] = VOLSERDUMPERROR; /* but that's exactly what the */
142 } /* standard dump does, anyways */
147 } /* for all calls */
154 static void iod_ungetc(struct iod *iodp, int achar)
156 iodp->oldChar = achar;
157 iodp->haveOldChar = 1;
160 static int iod_getc(register struct iod *iodp)
164 if (iodp->haveOldChar) {
165 iodp->haveOldChar = 0;
166 return iodp->oldChar;
168 if (iod_Read(iodp, &t, 1) == 1) return t;
172 static int ReadShort(register struct iod *iodp, register unsigned short *sp)
181 static int ReadInt32(register struct iod *iodp, afs_uint32 *lp)
183 afs_uint32 register b3,b2,b1,b0;
188 *lp = (((((b3<<8)|b2)<<8)|b1)<<8)|b0;
192 static void ReadString(register struct iod *iodp, register char *to,
197 if ((*to++ = iod_getc(iodp)) == 0)
201 while ((c = iod_getc(iodp)) && c != EOF);
206 static void ReadByteString(register struct iod *iodp, register byte *to,
210 *to++ = iod_getc(iodp);
213 static int ReadVolumeHeader(register struct iod *iodp, VolumeDiskData *vol)
217 memset(vol, 0, sizeof(*vol));
218 while ((tag = iod_getc(iodp)) > D_MAX && tag != EOF) {
221 if(!ReadInt32(iodp, &vol->id)) return VOLSERREAD_DUMPERROR;
224 if(!ReadInt32(iodp, &trash)) return VOLSERREAD_DUMPERROR;
227 ReadString(iodp, vol->name, sizeof(vol->name));
228 /*this means the name of the retsored volume could be possibly different. In conjunction with SAFSVolSignalRestore */
231 vol->inService = iod_getc(iodp );
234 vol->blessed = iod_getc(iodp );
237 if(!ReadInt32(iodp, &vol->uniquifier)) return VOLSERREAD_DUMPERROR;
240 vol->type = iod_getc(iodp );
243 if(!ReadInt32(iodp, &vol->parentId)) return VOLSERREAD_DUMPERROR;
246 if(!ReadInt32(iodp, &vol->cloneId)) return VOLSERREAD_DUMPERROR;
249 if(!ReadInt32(iodp, (afs_uint32 *)&vol->maxquota)) return VOLSERREAD_DUMPERROR;
252 if(!ReadInt32(iodp, (afs_uint32 *)&vol->minquota)) return VOLSERREAD_DUMPERROR;
255 if(!ReadInt32(iodp, (afs_uint32 *)&vol->diskused)) return VOLSERREAD_DUMPERROR; /* Bogus: should calculate this */
258 if(!ReadInt32(iodp, (afs_uint32 *)&vol->filecount)) return VOLSERREAD_DUMPERROR;
261 if(!ReadInt32(iodp, &vol->accountNumber)) return VOLSERREAD_DUMPERROR;
264 if(!ReadInt32(iodp, &vol->owner)) return VOLSERREAD_DUMPERROR;
267 if(!ReadInt32(iodp, &vol->creationDate)) return VOLSERREAD_DUMPERROR;
270 if(!ReadInt32(iodp, &vol->accessDate)) return VOLSERREAD_DUMPERROR;
273 if(!ReadInt32(iodp, &vol->updateDate)) return VOLSERREAD_DUMPERROR;
276 if(!ReadInt32(iodp, &vol->expirationDate)) return VOLSERREAD_DUMPERROR;
279 if(!ReadInt32(iodp, &vol->backupDate)) return VOLSERREAD_DUMPERROR;
282 ReadString(iodp, vol->offlineMessage, sizeof(vol->offlineMessage));
286 * Detailed volume statistics are never stored in dumps,
287 * so we just restore either the null string if this volume
288 * had already been set to store statistics, or the old motd
289 * contents otherwise. It doesn't matter, since this field
290 * will soon get initialized anyway.
292 ReadString(iodp, (char *)(vol->stat_reads), VMSGSIZE);
295 unsigned short length;
298 if(!ReadShort(iodp, &length)) return VOLSERREAD_DUMPERROR;
299 for (i = 0; i<length; i++) {
300 if(!ReadInt32(iodp, &data)) return VOLSERREAD_DUMPERROR;
301 if (i < sizeof(vol->weekUse)/sizeof(vol->weekUse[0]))
302 vol->weekUse[i] = data;
307 if(!ReadInt32(iodp, &vol->dayUseDate)) return VOLSERREAD_DUMPERROR;
310 if(!ReadInt32(iodp, (afs_uint32 *)&vol->dayUse)) return VOLSERREAD_DUMPERROR;
314 iod_ungetc(iodp, tag);
318 static int DumpTag(register struct iod *iodp, register int tag)
323 return((iod_Write(iodp, &p, 1) == 1)? 0 : VOLSERDUMPERROR);
327 static int DumpByte(register struct iod *iodp, char tag, byte value)
330 register byte *p = (unsigned char *) tbuffer;
333 return((iod_Write(iodp, tbuffer, 2) == 2)? 0: VOLSERDUMPERROR);
336 #define putint32(p, v) *p++ = v>>24, *p++ = v>>16, *p++ = v>>8, *p++ = v
337 #define putshort(p, v) *p++ = v>>8, *p++ = v
339 static int DumpDouble(register struct iod *iodp, char tag,
340 register afs_uint32 value1, register afs_uint32 value2)
343 register byte *p = (unsigned char *) tbuffer;
347 return((iod_Write(iodp, tbuffer, 9) == 9)? 0: VOLSERDUMPERROR);
350 static int DumpInt32(register struct iod *iodp, char tag,
351 register afs_uint32 value)
354 register byte *p = (unsigned char *) tbuffer;
357 return((iod_Write(iodp, tbuffer, 5) == 5)? 0: VOLSERDUMPERROR);
360 static int DumpArrayInt32(register struct iod *iodp, char tag,
361 register afs_uint32 *array, register int nelem)
364 register afs_uint32 v ;
366 register byte *p = (unsigned char *) tbuffer;
369 code = iod_Write(iodp, tbuffer, 3);
370 if (code != 3) return VOLSERDUMPERROR;
372 p = (unsigned char *) tbuffer;
373 v = *array++;/*this was register */
376 code = iod_Write(iodp, tbuffer, 4);
377 if(code != 4) return VOLSERDUMPERROR;
382 static int DumpShort(register struct iod *iodp, char tag, unsigned int value)
385 register byte *p = (unsigned char *) tbuffer;
389 return((iod_Write(iodp, tbuffer, 3) == 3)? 0: VOLSERDUMPERROR);
392 static int DumpBool(register struct iod *iodp, char tag, unsigned int value)
395 register byte *p = (unsigned char *) tbuffer;
398 return((iod_Write(iodp, tbuffer, 2) == 2)? 0: VOLSERDUMPERROR);
401 static int DumpString(register struct iod *iodp, char tag, register char *s)
405 code = iod_Write(iodp, &tag, 1);
406 if(code != 1) return VOLSERDUMPERROR;
408 code = iod_Write(iodp, s, n);
409 if(code != n) return VOLSERDUMPERROR;
413 static int DumpByteString(register struct iod *iodp, char tag,
414 register byte *bs, register int nbytes)
418 code = iod_Write(iodp, &tag, 1);
419 if(code != 1) return VOLSERDUMPERROR;
420 code = iod_Write(iodp, (char *)bs, nbytes);
421 if(code != nbytes) return VOLSERDUMPERROR;
425 static int DumpFile(struct iod *iodp, char tag, int vnode, FdHandle_t *handleP)
427 int code = 0, lcode = 0, error = 0;
428 afs_int32 pad = 0, offset;
429 int n, nbytes, howMany, howBig;
434 #include <sys/statfs.h>
435 struct statfs tstatfs;
439 howBig = _filelength(handleP->fd_fd);
443 fstat(handleP->fd_fd, &status);
444 howBig = status.st_size;
447 /* Unfortunately in AIX valuable fields such as st_blksize are
448 * gone from the stat structure.
450 fstatfs(handleP->fd_fd, &tstatfs);
451 howMany = tstatfs.f_bsize;
453 howMany = status.st_blksize;
454 #endif /* AFS_AIX_ENV */
455 #endif /* AFS_NT40_ENV */
458 size = FDH_SIZE(handleP);
459 code = DumpInt32(iodp, tag, size);
461 return VOLSERDUMPERROR;
464 p = (unsigned char *) malloc(howMany);
466 Log("1 Volser: DumpFile: no memory");
467 return VOLSERDUMPERROR;
470 for (nbytes = size; (nbytes && !error); nbytes -= howMany) {
471 if (nbytes < howMany)
474 /* Read the data - unless we know we can't */
475 n = (lcode ? 0 : FDH_READ(handleP, p, howMany));
477 /* If read any good data and we null padded previously, log the
478 * amount that we had null padded.
480 if ((n > 0) && pad) {
481 Log("1 Volser: DumpFile: Null padding file %d bytes at offset %u\n",
486 /* If didn't read enough data, null padd the rest of the buffer. This
487 * can happen if, for instance, the media has some bad spots. We don't
488 * want to quit the dump, so we start null padding.
491 /* Record the read error */
494 Log("1 Volser: DumpFile: Error %d reading inode %s for vnode %d\n",
495 errno, PrintInode(NULL, handleP->fd_ih->ih_ino), vnode);
498 Log("1 Volser: DumpFile: Error reading inode %s for vnode %d\n",
499 PrintInode(NULL, handleP->fd_ih->ih_ino), vnode);
502 /* Pad the rest of the buffer with zeros. Remember offset we started
503 * padding. Keep total tally of padding.
505 memset(p+n, 0, howMany-n);
507 offset = (howBig - nbytes) + n;
510 /* Now seek over the data we could not get. An error here means we
511 * can't do the next read.
513 lcode = FDH_SEEK(handleP, ((size - nbytes) + howMany), SEEK_SET);
514 if (lcode != ((size - nbytes) + howMany)) {
516 Log("1 Volser: DumpFile: Error %d seeking in inode %s for vnode %d\n",
517 errno, PrintInode(NULL, handleP->fd_ih->ih_ino), vnode);
520 Log("1 Volser: DumpFile: Error seeking in inode %s for vnode %d\n",
521 PrintInode(NULL, handleP->fd_ih->ih_ino), vnode);
530 /* Now write the data out */
531 if (iod_Write(iodp, (char *)p, howMany) != howMany)
532 error = VOLSERDUMPERROR;
536 if (pad) { /* Any padding we hadn't reported yet */
537 Log("1 Volser: DumpFile: Null padding file: %d bytes at offset %u\n",
545 static int DumpVolumeHeader(register struct iod *iodp, register Volume *vp)
548 static char nullString[1] = ""; /*The ``contents'' of motd*/
550 if (!code) code = DumpTag(iodp, D_VOLUMEHEADER);
551 if (!code) {code = DumpInt32(iodp, 'i',V_id(vp));}
552 if (!code) code = DumpInt32(iodp, 'v',V_stamp(vp).version);
553 if (!code) code = DumpString(iodp, 'n',V_name(vp));
554 if (!code) code = DumpBool(iodp, 's',V_inService(vp));
555 if (!code) code = DumpBool(iodp, 'b',V_blessed(vp));
556 if (!code) code = DumpInt32(iodp, 'u',V_uniquifier(vp));
557 if (!code) code = DumpByte(iodp, 't',(byte)V_type(vp));
558 if (!code){ code = DumpInt32(iodp, 'p',V_parentId(vp));}
559 if (!code) code = DumpInt32(iodp, 'c',V_cloneId(vp));
560 if (!code) code = DumpInt32(iodp, 'q',V_maxquota(vp));
561 if (!code) code = DumpInt32(iodp, 'm',V_minquota(vp));
562 if (!code) code = DumpInt32(iodp, 'd',V_diskused(vp));
563 if (!code) code = DumpInt32(iodp, 'f',V_filecount(vp));
564 if (!code) code = DumpInt32(iodp, 'a', V_accountNumber(vp));
565 if (!code) code = DumpInt32(iodp, 'o', V_owner(vp));
566 if (!code) code = DumpInt32(iodp, 'C',V_creationDate(vp)); /* Rw volume creation date */
567 if (!code) code = DumpInt32(iodp, 'A',V_accessDate(vp));
568 if (!code) code = DumpInt32(iodp, 'U',V_updateDate(vp));
569 if (!code) code = DumpInt32(iodp, 'E',V_expirationDate(vp));
570 if (!code) code = DumpInt32(iodp, 'B',V_backupDate(vp)); /* Rw volume backup clone date */
571 if (!code) code = DumpString(iodp, 'O',V_offlineMessage(vp));
573 * We do NOT dump the detailed volume statistics residing in the old
574 * motd field, since we cannot tell from the info in a dump whether
575 * statistics data has been put there. Instead, we dump a null string,
576 * just as if that was what the motd contained.
578 if (!code) code = DumpString(iodp, 'M', nullString);
579 if (!code) code = DumpArrayInt32(iodp, 'W', (afs_uint32 *)V_weekUse(vp), sizeof(V_weekUse(vp))/sizeof(V_weekUse(vp)[0]));
580 if (!code) code = DumpInt32(iodp, 'D', V_dayUseDate(vp));
581 if (!code) code = DumpInt32(iodp, 'Z', V_dayUse(vp));
585 static int DumpEnd(register struct iod *iodp)
587 return(DumpInt32(iodp, D_DUMPEND, DUMPENDMAGIC));
590 /* Guts of the dump code */
592 /* Dump a whole volume */
593 int DumpVolume(register struct rx_call *call, register Volume *vp,
594 afs_int32 fromtime, int dumpAllDirs)
598 register struct iod *iodp = &iod;
599 iod_Init(iodp, call);
601 if (!code) code = DumpDumpHeader(iodp, vp, fromtime);
603 if (!code) code = DumpPartial(iodp, vp, fromtime, dumpAllDirs);
605 /* hack follows. Errors should be handled quite differently in this version of dump than they used to be.*/
606 if (rx_Error(iodp->call)) {
607 Log("1 Volser: DumpVolume: Rx call failed during dump, error %d\n", rx_Error(iodp->call));
608 return VOLSERDUMPERROR;
610 if (!code) code = DumpEnd(iodp);
615 /* Dump a volume to multiple places*/
616 int DumpVolMulti(struct rx_call **calls, int ncalls, Volume *vp,
617 afs_int32 fromtime, int dumpAllDirs, int *codes)
621 iod_InitMulti(&iod, calls, ncalls, codes);
623 if (!code) code = DumpDumpHeader(&iod, vp, fromtime);
624 if (!code) code = DumpPartial(&iod, vp, fromtime, dumpAllDirs);
625 if (!code) code = DumpEnd(&iod);
629 /* A partial dump (no dump header) */
630 static int DumpPartial(register struct iod *iodp, register Volume *vp,
631 afs_int32 fromtime, int dumpAllDirs)
634 if (!code) code = DumpVolumeHeader(iodp, vp);
635 if (!code) code = DumpVnodeIndex(iodp, vp, vLarge, fromtime, dumpAllDirs);
636 if (!code) code = DumpVnodeIndex(iodp, vp, vSmall, fromtime, 0);
640 static int DumpVnodeIndex(register struct iod *iodp, Volume *vp,
641 VnodeClass class, afs_int32 fromtime, int forcedump)
643 register int code = 0;
644 register struct VnodeClassInfo *vcp = &VnodeClassInfo[class];
645 char buf[SIZEOF_LARGEDISKVNODE];
646 struct VnodeDiskObject *vnode = (struct VnodeDiskObject *) buf;
647 StreamHandle_t *file;
651 register int vnodeIndex, nVnodes;
653 fdP = IH_OPEN(vp->vnodeIndex[class].handle);
655 file = FDH_FDOPEN(fdP, "r+");
656 assert(file != NULL);
657 size = OS_SIZE(fdP->fd_fd);
659 nVnodes = (size / vcp->diskSize) - 1;
661 assert((nVnodes+1)*vcp->diskSize == size);
662 assert(STREAM_SEEK(file, vcp->diskSize, 0) == 0);
665 for (vnodeIndex = 0; nVnodes && STREAM_READ(vnode, vcp->diskSize, 1, file) == 1 && !code;
666 nVnodes--, vnodeIndex++) {
667 flag = forcedump || (vnode->serverModifyTime >= fromtime);
668 /* Note: the >= test is very important since some old volumes may not have
669 a serverModifyTime. For an epoch dump, this results in 0>=0 test, which
670 does dump the file! */
671 if (!code) code = DumpVnode(iodp, vnode, V_id(vp), bitNumberToVnodeNumber(vnodeIndex, class), flag);
672 if (!flag) IOMGR_Poll(); /* if we dont' xfr data, but scan instead, could lose conn */
679 static int DumpDumpHeader(register struct iod *iodp, register Volume *vp,
683 int UseLatestReadOnlyClone = 1;
684 afs_int32 dumpTimes[2];
685 iodp->device = vp->device;
686 iodp->parentId = V_parentId(vp);
687 iodp->dumpPartition = vp->partition;
688 if (!code) code = DumpDouble(iodp, D_DUMPHEADER, DUMPBEGINMAGIC, DUMPVERSION);
689 if (!code) code = DumpInt32(iodp, 'v', UseLatestReadOnlyClone? V_id(vp): V_parentId(vp));
690 if (!code) code = DumpString(iodp, 'n',V_name(vp));
691 dumpTimes[0] = fromtime;
692 dumpTimes[1] = V_backupDate(vp); /* Until the time the clone was made */
693 if (!code) code = DumpArrayInt32(iodp, 't', (afs_uint32 *)dumpTimes, 2);
697 static int DumpVnode(register struct iod *iodp, struct VnodeDiskObject *v,
698 int volid, int vnodeNumber, int dumpEverything)
704 if (!v || v->type == vNull)
706 if (!code) code = DumpDouble(iodp, D_VNODE, vnodeNumber, v->uniquifier);
709 if (!code) code = DumpByte(iodp, 't',(byte)v->type);
710 if (!code) code = DumpShort(iodp, 'l', v->linkCount); /* May not need this */
711 if (!code) code = DumpInt32(iodp, 'v', v->dataVersion);
712 if (!code) code = DumpInt32(iodp, 'm', v->unixModifyTime);
713 if (!code) code = DumpInt32(iodp, 'a', v->author);
714 if (!code) code = DumpInt32(iodp, 'o', v->owner);
715 if (!code && v->group) code = DumpInt32(iodp, 'g', v->group); /* default group is 0 */
716 if (!code) code = DumpShort(iodp, 'b', v->modeBits);
717 if (!code) code = DumpInt32(iodp, 'p', v->parent);
718 if (!code) code = DumpInt32(iodp, 's', v->serverModifyTime);
719 if (v->type == vDirectory) {
720 acl_HtonACL(VVnodeDiskACL(v));
721 if (!code) code = DumpByteString(iodp, 'A', (byte *) VVnodeDiskACL(v), VAclDiskSize(v));
723 if (VNDISK_GET_INO(v)) {
724 IH_INIT(ihP, iodp->device, iodp->parentId, VNDISK_GET_INO(v));
727 Log("1 Volser: DumpVnode: dump: Unable to open inode %d for vnode %d (volume %d); not dumped, error %d\n",
728 VNDISK_GET_INO(v), vnodeNumber, volid, errno);
730 return VOLSERREAD_DUMPERROR;
732 code = DumpFile(iodp, 'f', vnodeNumber, fdP);
740 int ProcessIndex(Volume *vp, VnodeClass class, afs_int32 **Bufp, int *sizep,
743 int i, nVnodes, offset, code, index=0;
747 StreamHandle_t *afile;
749 struct VnodeClassInfo *vcp = &VnodeClassInfo[class];
750 char buf[SIZEOF_LARGEDISKVNODE], zero[SIZEOF_LARGEDISKVNODE];
751 register struct VnodeDiskObject *vnode = (struct VnodeDiskObject *) buf;
753 memset(zero, 0, sizeof(zero)); /* zero out our proto-vnode */
754 fdP = IH_OPEN(vp->vnodeIndex[class].handle);
757 afile = FDH_FDOPEN(fdP, "r+");
761 for (i = 0; i<*sizep; i++) {
764 STREAM_SEEK(afile, Buf[i], 0);
765 code = STREAM_READ(vnode, vcp->diskSize, 1, afile);
767 if (vnode->type != vNull && VNDISK_GET_INO(vnode)) {
770 afs_fsize_t vnodeLength;
771 Log("RestoreVolume %d Cleanup: Removing old vnode=%d inode=%d size=%d\n",
772 V_id(vp), bitNumberToVnodeNumber(i,class),
773 VNDISK_GET_INO(vnode), vnodeLength);
775 IH_DEC(V_linkHandle(vp), VNDISK_GET_INO(vnode),
779 STREAM_SEEK(afile, Buf[i], 0);
780 (void ) STREAM_WRITE(zero, vcp->diskSize, 1, afile); /* Zero it out */
786 Log("RestoreVolume Cleanup: Removed %d inodes for volume %d\n",
789 STREAM_FLUSH(afile); /* ensure 0s are on the disk */
790 OS_SYNC(afile->str_fd);
792 size = OS_SIZE(fdP->fd_fd);
794 nVnodes = (size <= vcp->diskSize ? 0 :
795 size-vcp->diskSize) >> vcp->logSize;
797 Buf = (afs_int32 *) malloc(nVnodes * sizeof(afs_int32));
798 if (Buf == NULL) return 1;
799 memset((char *)Buf, 0, nVnodes * sizeof(afs_int32));
800 STREAM_SEEK(afile, offset = vcp->diskSize, 0);
802 code = STREAM_READ(vnode, vcp->diskSize, 1, afile);
806 if (vnode->type != vNull && VNDISK_GET_INO(vnode)) {
807 Buf[(offset >> vcp->logSize)-1] = offset;
810 offset += vcp->diskSize;
822 int RestoreVolume(register struct rx_call *call, Volume *avp,
823 int incremental, struct restoreCookie *cookie)
826 struct DumpHeader header;
828 Error error = 0, vupdate;
831 register struct iod *iodp = &iod;
832 afs_int32 *b1=0, *b2=0;
833 int s1=0, s2=0, delo=0, tdelo;
836 iod_Init(iodp, call);
839 if (!ReadDumpHeader(iodp, &header)){
840 Log("1 Volser: RestoreVolume: Error reading header file for dump; aborted\n");
841 return VOLSERREAD_DUMPERROR;
843 if (iod_getc(iodp) != D_VOLUMEHEADER){
844 Log("1 Volser: RestoreVolume: Volume header missing from dump; not restored\n");
845 return VOLSERREAD_DUMPERROR;
847 if(ReadVolumeHeader(iodp, &vol) == VOLSERREAD_DUMPERROR) return VOLSERREAD_DUMPERROR;
849 delo = ProcessIndex(vp, vLarge, &b1, &s1, 0);
850 if (!delo) delo = ProcessIndex(vp, vSmall, &b2, &s2, 0);
852 if (b1) free((char *)b1);
853 if (b2) free((char *)b2);
857 strncpy(vol.name,cookie->name,VOLSER_OLDMAXVOLNAME);
858 vol.type = cookie->type;
859 vol.cloneId = cookie->clone;
860 vol.parentId = cookie->parent;
865 if (ReadVnodes(iodp, vp, 0, b1, s1, b2, s2, tdelo)) {
866 error = VOLSERREAD_DUMPERROR;
869 tag = iod_getc(iodp);
870 if (tag != D_VOLUMEHEADER)
872 if (ReadVolumeHeader(iodp, &vol) == VOLSERREAD_DUMPERROR) {
873 error = VOLSERREAD_DUMPERROR;
878 if (tag != D_DUMPEND || !ReadInt32(iodp, &endMagic) || endMagic != DUMPENDMAGIC){
879 Log("1 Volser: RestoreVolume: End of dump not found; restore aborted\n");
880 error = VOLSERREAD_DUMPERROR;
885 if (iod_getc(iodp) != EOF) {
886 Log("1 Volser: RestoreVolume: Unrecognized postamble in dump; restore aborted\n");
887 error = VOLSERREAD_DUMPERROR;
892 ProcessIndex(vp, vLarge, &b1, &s1, 1);
893 ProcessIndex(vp, vSmall, &b2, &s2, 1);
897 ClearVolumeStats(&vol);
898 CopyVolumeHeader(&vol, &V_disk(vp));
900 VUpdateVolume(&vupdate, vp);
902 Log("1 Volser: RestoreVolume: Unable to rewrite volume header; restore aborted\n");
903 error = VOLSERREAD_DUMPERROR;
907 /* Free the malloced space above */
908 if (b1) free((char *)b1);
909 if (b2) free((char *)b2);
913 static int ReadVnodes(register struct iod *iodp, Volume *vp,
914 int incremental, afs_int32 *Lbuf, afs_int32 s1,
915 afs_int32 *Sbuf, afs_int32 s2, afs_int32 delo)
917 afs_int32 vnodeNumber;
918 char buf[SIZEOF_LARGEDISKVNODE];
920 struct VnodeDiskObject *vnode = (struct VnodeDiskObject *) buf;
921 struct VnodeDiskObject oldvnode;
924 struct VnodeClassInfo *vcp;
929 tag = iod_getc(iodp);
930 V_pref(vp, nearInode);
931 while (tag == D_VNODE) {
933 memset(buf, 0, sizeof (buf));
934 if (!ReadInt32(iodp, (afs_uint32 *)&vnodeNumber))
937 ReadInt32(iodp, &vnode->uniquifier);
938 while ((tag = iod_getc(iodp)) > D_MAX && tag != EOF) {
942 vnode->type = (VnodeType) iod_getc(iodp);
947 ReadShort(iodp, &tlc);
948 vnode->linkCount = (signed int)tlc;
952 ReadInt32(iodp, &vnode->dataVersion);
955 ReadInt32(iodp, &vnode->unixModifyTime);
958 ReadInt32(iodp, &vnode->serverModifyTime);
961 ReadInt32(iodp, &vnode->author);
964 ReadInt32(iodp, &vnode->owner);
967 ReadInt32(iodp, (afs_uint32 *)&vnode->group);
970 unsigned short modeBits;
971 ReadShort(iodp, &modeBits);
972 vnode->modeBits = (unsigned int)modeBits;
976 ReadInt32(iodp, &vnode->parent);
979 ReadByteString(iodp, (byte *)VVnodeDiskACL(vnode),
980 VAclDiskSize(vnode));
981 acl_NtohACL(VVnodeDiskACL(vnode));
986 afs_fsize_t vnodeLength;
988 ino = IH_CREATE(V_linkHandle(vp),
990 VPartitionPath(V_partition(vp)),
991 nearInode, V_parentId(vp), vnodeNumber,
994 if (!VALID_INO(ino)) {
995 perror("unable to allocate inode");
996 Log("1 Volser: ReadVnodes: Restore aborted\n");
997 return VOLSERREAD_DUMPERROR;
1000 VNDISK_SET_INO(vnode, ino);
1001 IH_INIT(tmpH, vp->device, V_parentId(vp), ino);
1002 fdP = IH_OPEN(tmpH);
1005 return VOLSERREAD_DUMPERROR;
1007 vnodeLength = volser_WriteFile(vnodeNumber, iodp, fdP,
1009 VNDISK_SET_LEN(vnode, vnodeLength);
1010 FDH_REALLYCLOSE(fdP);
1013 Log("1 Volser: ReadVnodes: IDEC inode %d\n", ino);
1014 IH_DEC(V_linkHandle(vp), ino, V_parentId(vp));
1015 return VOLSERREAD_DUMPERROR;
1022 class = vnodeIdToClass(vnodeNumber);
1023 vcp = &VnodeClassInfo[class];
1025 /* Mark this vnode as in this dump - so we don't delete it later */
1027 idx = (vnodeIndexOffset(vcp,vnodeNumber) >> vcp->logSize) - 1;
1028 if (class == vLarge) {
1029 if (Lbuf && (idx < s1)) Lbuf[idx] = 0;
1031 if (Sbuf && (idx < s2)) Sbuf[idx] = 0;
1036 FdHandle_t *fdP = IH_OPEN(vp->vnodeIndex[class].handle);
1038 Log("1 Volser: ReadVnodes: Error opening vnode index; restore aborted\n");
1039 return VOLSERREAD_DUMPERROR;
1041 if (FDH_SEEK(fdP, vnodeIndexOffset(vcp, vnodeNumber), SEEK_SET) < 0) {
1042 Log("1 Volser: ReadVnodes: Error seeking into vnode index; restore aborted\n");
1043 FDH_REALLYCLOSE(fdP);
1044 return VOLSERREAD_DUMPERROR;
1046 if (FDH_READ(fdP, &oldvnode, sizeof(oldvnode)) == sizeof(oldvnode)) {
1047 if (oldvnode.type != vNull && VNDISK_GET_INO(&oldvnode)) {
1048 IH_DEC(V_linkHandle(vp), VNDISK_GET_INO(&oldvnode),
1052 vnode->vnodeMagic = vcp->magic;
1053 if (FDH_SEEK(fdP, vnodeIndexOffset(vcp, vnodeNumber), SEEK_SET) < 0) {
1054 Log("1 Volser: ReadVnodes: Error seeking into vnode index; restore aborted\n");
1055 FDH_REALLYCLOSE(fdP);
1056 return VOLSERREAD_DUMPERROR;
1058 if (FDH_WRITE(fdP, vnode, vcp->diskSize) != vcp->diskSize) {
1059 Log("1 Volser: ReadVnodes: Error writing vnode index; restore aborted\n");
1060 FDH_REALLYCLOSE(fdP);
1061 return VOLSERREAD_DUMPERROR;
1066 iod_ungetc(iodp, tag);
1073 /* called with disk file only. Note that we don't have to worry about rx_Read
1074 * needing to read an ungetc'd character, since the ReadInt32 will have read
1077 static bit32 volser_WriteFile(int vn, struct iod *iodp, FdHandle_t *handleP,
1081 afs_uint32 filesize;
1083 register afs_uint32 size = 8192;
1084 register afs_uint32 nbytes;
1089 if (!ReadInt32(iodp, &filesize)) {
1093 p = (unsigned char *) malloc(size);
1098 for (nbytes = filesize; nbytes; nbytes -= size) {
1102 if ((code = iod_Read(iodp, p, size)) != size) {
1103 Log("1 Volser: WriteFile: Error reading dump file %d size=%d nbytes=%d (%d of %d); restore aborted\n", vn, filesize, nbytes, code, size);
1107 code = FDH_WRITE(handleP, p, size);
1108 if (code > 0) written += code;
1110 Log("1 Volser: WriteFile: Error creating file in volume; restore aborted\n");
1119 static int ReadDumpHeader(register struct iod *iodp, struct DumpHeader *hp)
1122 afs_uint32 beginMagic;
1123 if (iod_getc(iodp) != D_DUMPHEADER || !ReadInt32(iodp, &beginMagic)
1124 || !ReadInt32(iodp, (afs_uint32 *)&hp->version)
1125 || beginMagic != DUMPBEGINMAGIC
1129 while ((tag = iod_getc(iodp)) > D_MAX) {
1130 unsigned short arrayLength;
1134 if (!ReadInt32(iodp, &hp->volumeId))
1138 ReadString(iodp, hp->volumeName, sizeof(hp->volumeName));
1141 if (!ReadShort(iodp, &arrayLength))
1143 hp->nDumpTimes = (arrayLength >> 1);
1144 for (i = 0; i<hp->nDumpTimes; i++)
1145 if (!ReadInt32(iodp, (afs_uint32 *)&hp->dumpTimes[i].from)
1146 || !ReadInt32(iodp, (afs_uint32 *)&hp->dumpTimes[i].to))
1151 if (!hp->volumeId || !hp->nDumpTimes) {
1154 iod_ungetc(iodp, tag);