2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 4. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 static char sccsid[] = "@(#)tape.c 8.9 (Berkeley) 5/1/95";
41 #include <sys/cdefs.h>
42 __FBSDID("$FreeBSD$");
44 #include <sys/param.h>
49 #include <sys/extattr.h>
52 #include <ufs/ufs/extattr.h>
53 #include <ufs/ufs/dinode.h>
54 #include <protocols/dumprestore.h>
71 static long fssize = MAXBSIZE;
73 static int pipein = 0;
74 static int pipecmdin = 0;
75 static FILE *popenfp = NULL;
80 static union u_spcl endoftapemark;
81 static long byteslide = 0;
82 static long blksread; /* blocks read since last header */
83 static int64_t tapeaddr = 0; /* current TP_BSIZE tape record */
84 static long tapesread;
85 static jmp_buf restart;
86 static int gettingfile = 0; /* restart has a valid frame */
87 static char *host = NULL;
88 static int readmapflag;
92 static char lnkbuf[MAXPATHLEN + 1];
95 int Bcvt; /* Swap Bytes */
96 int oldinofmt; /* FreeBSD 1 inode format needs cvt */
98 #define FLUSHTAPEBUF() blkcnt = ntrec + 1
100 char *namespace_names[] = EXTATTR_NAMESPACE_NAMES;
102 static void accthdr(struct s_spcl *);
103 static int checksum(int *);
104 static void findinode(struct s_spcl *);
105 static void findtapeblksize(void);
106 static char *setupextattr(int);
107 static void xtrattr(char *, size_t);
108 static void set_extattr_link(char *, void *, int);
109 static void set_extattr_fd(int, char *, void *, int);
110 static int gethead(struct s_spcl *);
111 static void readtape(char *);
112 static void setdumpnum(void);
113 static u_long swabl(u_long);
114 static u_char *swablong(u_char *, int);
115 static u_char *swabshort(u_char *, int);
116 static void terminateinput(void);
117 static void xtrfile(char *, size_t);
118 static void xtrlnkfile(char *, size_t);
119 static void xtrlnkskip(char *, size_t);
120 static void xtrmap(char *, size_t);
121 static void xtrmapskip(char *, size_t);
122 static void xtrskip(char *, size_t);
125 * Set up an input source
128 setinput(char *source, int ispipecommand)
134 newtapebuf(NTREC > HIGHDENSITYTREC ? NTREC : HIGHDENSITYTREC);
141 if (strchr(source, ':')) {
143 source = strchr(host, ':');
145 if (rmthost(host) == 0)
149 if (strcmp(source, "-") == 0) {
151 * Since input is coming from a pipe we must establish
152 * our own connection to the terminal.
154 terminal = fopen(_PATH_TTY, "r");
155 if (terminal == NULL) {
156 (void)fprintf(stderr, "cannot open %s: %s\n",
157 _PATH_TTY, strerror(errno));
158 terminal = fopen(_PATH_DEVNULL, "r");
159 if (terminal == NULL) {
160 (void)fprintf(stderr, "cannot open %s: %s\n",
161 _PATH_DEVNULL, strerror(errno));
167 /* no longer need or want root privileges */
168 if (setuid(getuid()) != 0) {
169 fprintf(stderr, "setuid failed\n");
172 magtape = strdup(source);
173 if (magtape == NULL) {
174 fprintf(stderr, "Cannot allocate space for magtape buffer\n");
180 newtapebuf(long size)
182 static int tapebufsize = -1;
185 if (size <= tapebufsize)
188 free(tapebuf - TP_BSIZE);
189 tapebuf = malloc((size+1) * TP_BSIZE);
190 if (tapebuf == NULL) {
191 fprintf(stderr, "Cannot allocate space for tape buffer\n");
199 * Verify that the tape drive can be accessed and
200 * that it actually is a dump tape.
208 vprintf(stdout, "Verify tape and initialize maps\n");
210 if (setenv("RESTORE_VOLUME", "1", 1) == -1) {
211 fprintf(stderr, "Cannot set $RESTORE_VOLUME: %s\n",
215 popenfp = popen(magtape, "r");
216 mt = popenfp ? fileno(popenfp) : -1;
220 mt = rmtopen(magtape, 0);
226 mt = open(magtape, O_RDONLY, 0);
228 fprintf(stderr, "%s: %s\n", magtape, strerror(errno));
234 if (!pipein && !pipecmdin && !bflag)
236 if (gethead(&spcl) == FAIL) {
237 fprintf(stderr, "Tape is not a dump tape\n");
241 endoftapemark.s_spcl.c_magic = FS_UFS2_MAGIC;
242 endoftapemark.s_spcl.c_type = TS_END;
243 ip = (int *)&endoftapemark;
244 j = sizeof(union u_spcl) / sizeof(int);
249 endoftapemark.s_spcl.c_checksum = CHECKSUM - i;
251 if (vflag || command == 't')
253 dumptime = _time64_to_time(spcl.c_ddate);
254 dumpdate = _time64_to_time(spcl.c_date);
255 if (stat(".", &stbuf) < 0) {
256 fprintf(stderr, "cannot stat .: %s\n", strerror(errno));
259 if (stbuf.st_blksize > 0 && stbuf.st_blksize < TP_BSIZE )
261 if (stbuf.st_blksize >= TP_BSIZE && stbuf.st_blksize <= MAXBSIZE)
262 fssize = stbuf.st_blksize;
263 if (((TP_BSIZE - 1) & stbuf.st_blksize) != 0) {
264 fprintf(stderr, "Warning: filesystem with non-multiple-of-%d "
265 "blocksize (%d);\n", TP_BSIZE, stbuf.st_blksize);
266 fssize = roundup(fssize, TP_BSIZE);
267 fprintf(stderr, "\twriting using blocksize %ld\n", fssize);
269 if (spcl.c_volume != 1) {
270 fprintf(stderr, "Tape is not volume 1 of the dump\n");
273 if (gethead(&spcl) == FAIL) {
274 dprintf(stdout, "header read failed at %ld blocks\n", blksread);
275 panic("no header after volume mark!\n");
278 if (spcl.c_type != TS_CLRI) {
279 fprintf(stderr, "Cannot find file removal list\n");
282 maxino = (spcl.c_count * TP_BSIZE * NBBY) + 1;
283 dprintf(stdout, "maxino = %ju\n", (uintmax_t)maxino);
284 map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY));
286 panic("no memory for active inode map\n");
288 curfile.action = USING;
289 getfile(xtrmap, xtrmapskip, xtrmapskip);
290 if (spcl.c_type != TS_BITS) {
291 fprintf(stderr, "Cannot find file dump list\n");
294 map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY));
295 if (map == (char *)NULL)
296 panic("no memory for file dump list\n");
298 curfile.action = USING;
299 getfile(xtrmap, xtrmapskip, xtrmapskip);
301 * If there may be whiteout entries on the tape, pretend that the
302 * whiteout inode exists, so that the whiteout entries can be
305 SETINO(WINO, dumpmap);
306 /* 'r' restores don't call getvol() for tape 1, so mark it as read. */
312 * Prompt user to load a new dump volume.
313 * "Nextvol" is the next suggested volume to use.
314 * This suggested volume is enforced when doing full
315 * or incremental restores, but can be overridden by
316 * the user when only extracting a subset of the files.
322 long i, newvol, savecnt;
323 union u_spcl tmpspcl;
324 # define tmpbuf tmpspcl.s_spcl
331 prevtapea = tapeaddr;
335 panic("Changing volumes on pipe input?\n");
336 /* Avoid looping if we couldn't ask the user. */
337 if (yflag || ferror(terminal) || feof(terminal))
346 done(1); /* pipes do not get a second chance */
347 if (command == 'R' || command == 'r' || curfile.action != SKIP)
351 while (newvol <= 0) {
352 if (tapesread == 0) {
353 fprintf(stderr, "%s%s%s%s%s%s%s",
354 "You have not read any tapes yet.\n",
355 "If you are extracting just a few files,",
356 " start with the last volume\n",
357 "and work towards the first; restore",
358 " can quickly skip tapes that\n",
359 "have no further files to extract.",
360 " Otherwise, begin with volume 1.\n");
362 fprintf(stderr, "You have read volumes");
364 for (i = 0; i < 32; i++)
365 if (tapesread & (1 << i)) {
366 fprintf(stderr, "%s%ld", buf, i + 1);
369 fprintf(stderr, "\n");
372 fprintf(stderr, "Specify next volume #: ");
373 (void) fflush(stderr);
374 if (fgets(buf, BUFSIZ, terminal) == NULL)
376 } while (buf[0] == '\n');
380 "Volume numbers are positive numerics\n");
383 if (newvol == volno) {
384 tapesread |= 1 << (volno - 1);
388 fprintf(stderr, "Mount tape volume %ld\n", newvol);
389 fprintf(stderr, "Enter ``none'' if there are no more tapes\n");
390 fprintf(stderr, "otherwise enter tape name (default: %s) ", magtape);
391 (void) fflush(stderr);
392 if (fgets(buf, BUFSIZ, terminal) == NULL)
394 if (!strcmp(buf, "none\n")) {
398 if (buf[0] != '\n') {
399 (void) strcpy(magtape, buf);
400 magtape[strlen(magtape) - 1] = '\0';
403 char volno[sizeof("2147483647")];
405 (void)sprintf(volno, "%ld", newvol);
406 if (setenv("RESTORE_VOLUME", volno, 1) == -1) {
407 fprintf(stderr, "Cannot set $RESTORE_VOLUME: %s\n",
411 popenfp = popen(magtape, "r");
412 mt = popenfp ? fileno(popenfp) : -1;
416 mt = rmtopen(magtape, 0);
419 mt = open(magtape, O_RDONLY, 0);
422 fprintf(stderr, "Cannot open %s\n", magtape);
430 if (gethead(&tmpbuf) == FAIL) {
431 dprintf(stdout, "header read failed at %ld blocks\n", blksread);
432 fprintf(stderr, "tape is not dump tape\n");
436 if (tmpbuf.c_volume != volno) {
437 fprintf(stderr, "Wrong volume (%jd)\n",
438 (intmax_t)tmpbuf.c_volume);
442 if (_time64_to_time(tmpbuf.c_date) != dumpdate ||
443 _time64_to_time(tmpbuf.c_ddate) != dumptime) {
444 time_t t = _time64_to_time(tmpbuf.c_date);
445 fprintf(stderr, "Wrong dump date\n\tgot: %s", ctime(&t));
446 fprintf(stderr, "\twanted: %s", ctime(&dumpdate));
450 tapesread |= 1 << (volno - 1);
453 * If continuing from the previous volume, skip over any
454 * blocks read already at the end of the previous volume.
456 * If coming to this volume at random, skip to the beginning
457 * of the next record.
459 dprintf(stdout, "last rec %jd, tape starts with %jd\n",
460 (intmax_t)prevtapea, (intmax_t)tmpbuf.c_tapea);
461 if (tmpbuf.c_type == TS_TAPE) {
462 if (curfile.action != USING) {
464 * XXX Dump incorrectly sets c_count to 1 in the
465 * volume header of the first tape, so ignore
466 * c_count when volno == 1.
469 for (i = tmpbuf.c_count; i > 0; i--)
471 } else if (tmpbuf.c_tapea <= prevtapea) {
473 * Normally the value of c_tapea in the volume
474 * header is the record number of the header itself.
475 * However in the volume header following an EOT-
476 * terminated tape, it is the record number of the
477 * first continuation data block (dump bug?).
479 * The next record we want is `prevtapea + 1'.
481 i = prevtapea + 1 - tmpbuf.c_tapea;
482 dprintf(stderr, "Skipping %ld duplicate record%s.\n",
483 i, i > 1 ? "s" : "");
488 if (curfile.action == USING) {
490 panic("active file into volume 1\n");
493 (void) gethead(&spcl);
502 * Handle unexpected EOF.
508 if (gettingfile && curfile.action == USING) {
509 printf("Warning: %s %s\n",
510 "End-of-input encountered while extracting", curfile.name);
512 curfile.name = "<name unknown>";
513 curfile.action = UNKNOWN;
515 curfile.ino = maxino;
523 * handle multiple dumps per tape by skipping forward to the
531 if (dumpnum == 1 || volno != 1)
534 fprintf(stderr, "Cannot have multiple dumps on pipe input\n");
538 tcom.mt_count = dumpnum - 1;
541 rmtioctl(MTFSF, dumpnum - 1);
544 if (!pipecmdin && ioctl(mt, MTIOCTOP, (char *)&tcom) < 0)
545 fprintf(stderr, "ioctl MTFSF: %s\n", strerror(errno));
552 t = _time64_to_time(spcl.c_date);
553 fprintf(stdout, "Dump date: %s", ctime(&t));
554 t = _time64_to_time(spcl.c_ddate);
555 fprintf(stdout, "Dumped from: %s",
556 (spcl.c_ddate == 0) ? "the epoch\n" : ctime(&t));
557 if (spcl.c_host[0] == '\0')
559 fprintf(stderr, "Level %jd dump of %s on %s:%s\n",
560 (intmax_t)spcl.c_level, spcl.c_filesys, spcl.c_host, spcl.c_dev);
561 fprintf(stderr, "Label: %s\n", spcl.c_label);
565 extractfile(char *name)
572 struct timeval mtimep[2], ctimep[2];
577 curfile.action = USING;
578 mtimep[0].tv_sec = curfile.atime_sec;
579 mtimep[0].tv_usec = curfile.atime_nsec / 1000;
580 mtimep[1].tv_sec = curfile.mtime_sec;
581 mtimep[1].tv_usec = curfile.mtime_nsec / 1000;
582 ctimep[0].tv_sec = curfile.atime_sec;
583 ctimep[0].tv_usec = curfile.atime_nsec / 1000;
584 ctimep[1].tv_sec = curfile.birthtime_sec;
585 ctimep[1].tv_usec = curfile.birthtime_nsec / 1000;
586 extsize = curfile.extsize;
592 flags = curfile.file_flags;
593 switch (mode & IFMT) {
596 fprintf(stderr, "%s: unknown file mode 0%o\n", name, mode);
601 vprintf(stdout, "skipped socket %s\n", name);
607 ep = lookupname(name);
608 if (ep == NULL || ep->e_flags & EXTRACT)
609 panic("unextracted directory %s\n", name);
613 vprintf(stdout, "extract file %s\n", name);
614 return (genliteraldir(name, curfile.ino));
619 buf = setupextattr(extsize);
620 getfile(xtrlnkfile, xtrattr, xtrlnkskip);
623 "%s: zero length symbolic link (ignored)\n", name);
626 if (linkit(lnkbuf, name, SYMLINK) == GOOD) {
628 set_extattr_link(name, buf, extsize);
629 (void) lchown(name, uid, gid);
630 (void) lchmod(name, mode);
631 (void) lutimes(name, ctimep);
632 (void) lutimes(name, mtimep);
633 (void) lchflags(name, flags);
639 vprintf(stdout, "extract fifo %s\n", name);
646 if (mkfifo(name, 0600) < 0) {
647 fprintf(stderr, "%s: cannot create fifo: %s\n",
648 name, strerror(errno));
655 buf = setupextattr(extsize);
656 getfile(xtrnull, xtrattr, xtrnull);
657 set_extattr_file(name, buf, extsize);
659 (void) chown(name, uid, gid);
660 (void) chmod(name, mode);
661 (void) utimes(name, ctimep);
662 (void) utimes(name, mtimep);
663 (void) chflags(name, flags);
668 vprintf(stdout, "extract special file %s\n", name);
675 if (mknod(name, (mode & (IFCHR | IFBLK)) | 0600,
676 (int)curfile.rdev) < 0) {
677 fprintf(stderr, "%s: cannot create special file: %s\n",
678 name, strerror(errno));
685 buf = setupextattr(extsize);
686 getfile(xtrnull, xtrattr, xtrnull);
687 set_extattr_file(name, buf, extsize);
689 (void) chown(name, uid, gid);
690 (void) chmod(name, mode);
691 (void) utimes(name, ctimep);
692 (void) utimes(name, mtimep);
693 (void) chflags(name, flags);
697 vprintf(stdout, "extract file %s\n", name);
704 if ((ofile = open(name, O_WRONLY | O_CREAT | O_TRUNC,
706 fprintf(stderr, "%s: cannot create file: %s\n",
707 name, strerror(errno));
711 buf = setupextattr(extsize);
712 getfile(xtrfile, xtrattr, xtrskip);
714 set_extattr_fd(ofile, name, buf, extsize);
715 (void) fchown(ofile, uid, gid);
716 (void) fchmod(ofile, mode);
717 (void) futimes(ofile, ctimep);
718 (void) futimes(ofile, mtimep);
719 (void) fchflags(ofile, flags);
727 * Set attributes for a file.
730 set_extattr_file(char *name, void *buf, int size)
732 struct extattr *eap, *eaend;
734 vprintf(stdout, "Set attributes for %s:", name);
736 for (eap = buf; eap < eaend; eap = EXTATTR_NEXT(eap)) {
738 * Make sure this entry is complete.
740 if (EXTATTR_NEXT(eap) > eaend || eap->ea_length <= 0) {
741 dprintf(stdout, "\n\t%scorrupted",
742 eap == buf ? "" : "remainder ");
745 if (eap->ea_namespace == EXTATTR_NAMESPACE_EMPTY)
747 vprintf(stdout, "\n\t%s, (%d bytes), %*s",
748 namespace_names[eap->ea_namespace], eap->ea_length,
749 eap->ea_namelength, eap->ea_name);
751 * First we try the general attribute setting interface.
752 * However, some attributes can only be set by root or
753 * by using special interfaces (for example, ACLs).
755 if (extattr_set_file(name, eap->ea_namespace, eap->ea_name,
756 EXTATTR_CONTENT(eap), EXTATTR_CONTENT_SIZE(eap)) != -1) {
757 dprintf(stdout, " (set using extattr_set_file)");
761 * If the general interface refuses to set the attribute,
762 * then we try all the specialized interfaces that we
765 if (eap->ea_namespace == EXTATTR_NAMESPACE_SYSTEM &&
766 !strcmp(eap->ea_name, POSIX1E_ACL_ACCESS_EXTATTR_NAME)) {
767 if (acl_set_file(name, ACL_TYPE_ACCESS,
768 EXTATTR_CONTENT(eap)) != -1) {
769 dprintf(stdout, " (set using acl_set_file)");
773 if (eap->ea_namespace == EXTATTR_NAMESPACE_SYSTEM &&
774 !strcmp(eap->ea_name, POSIX1E_ACL_DEFAULT_EXTATTR_NAME)) {
775 if (acl_set_file(name, ACL_TYPE_DEFAULT,
776 EXTATTR_CONTENT(eap)) != -1) {
777 dprintf(stdout, " (set using acl_set_file)");
781 vprintf(stdout, " (unable to set)");
783 vprintf(stdout, "\n");
787 * Set attributes for a symbolic link.
790 set_extattr_link(char *name, void *buf, int size)
792 struct extattr *eap, *eaend;
794 vprintf(stdout, "Set attributes for %s:", name);
796 for (eap = buf; eap < eaend; eap = EXTATTR_NEXT(eap)) {
798 * Make sure this entry is complete.
800 if (EXTATTR_NEXT(eap) > eaend || eap->ea_length <= 0) {
801 dprintf(stdout, "\n\t%scorrupted",
802 eap == buf ? "" : "remainder ");
805 if (eap->ea_namespace == EXTATTR_NAMESPACE_EMPTY)
807 vprintf(stdout, "\n\t%s, (%d bytes), %*s",
808 namespace_names[eap->ea_namespace], eap->ea_length,
809 eap->ea_namelength, eap->ea_name);
811 * First we try the general attribute setting interface.
812 * However, some attributes can only be set by root or
813 * by using special interfaces (for example, ACLs).
815 if (extattr_set_link(name, eap->ea_namespace, eap->ea_name,
816 EXTATTR_CONTENT(eap), EXTATTR_CONTENT_SIZE(eap)) != -1) {
817 dprintf(stdout, " (set using extattr_set_link)");
821 * If the general interface refuses to set the attribute,
822 * then we try all the specialized interfaces that we
825 if (eap->ea_namespace == EXTATTR_NAMESPACE_SYSTEM &&
826 !strcmp(eap->ea_name, POSIX1E_ACL_ACCESS_EXTATTR_NAME)) {
827 if (acl_set_link_np(name, ACL_TYPE_ACCESS,
828 EXTATTR_CONTENT(eap)) != -1) {
829 dprintf(stdout, " (set using acl_set_link_np)");
833 if (eap->ea_namespace == EXTATTR_NAMESPACE_SYSTEM &&
834 !strcmp(eap->ea_name, POSIX1E_ACL_DEFAULT_EXTATTR_NAME)) {
835 if (acl_set_link_np(name, ACL_TYPE_DEFAULT,
836 EXTATTR_CONTENT(eap)) != -1) {
837 dprintf(stdout, " (set using acl_set_link_np)");
841 vprintf(stdout, " (unable to set)");
843 vprintf(stdout, "\n");
847 * Set attributes on a file descriptor.
850 set_extattr_fd(int fd, char *name, void *buf, int size)
852 struct extattr *eap, *eaend;
854 vprintf(stdout, "Set attributes for %s:", name);
856 for (eap = buf; eap < eaend; eap = EXTATTR_NEXT(eap)) {
858 * Make sure this entry is complete.
860 if (EXTATTR_NEXT(eap) > eaend || eap->ea_length <= 0) {
861 dprintf(stdout, "\n\t%scorrupted",
862 eap == buf ? "" : "remainder ");
865 if (eap->ea_namespace == EXTATTR_NAMESPACE_EMPTY)
867 vprintf(stdout, "\n\t%s, (%d bytes), %*s",
868 namespace_names[eap->ea_namespace], eap->ea_length,
869 eap->ea_namelength, eap->ea_name);
871 * First we try the general attribute setting interface.
872 * However, some attributes can only be set by root or
873 * by using special interfaces (for example, ACLs).
875 if (extattr_set_fd(fd, eap->ea_namespace, eap->ea_name,
876 EXTATTR_CONTENT(eap), EXTATTR_CONTENT_SIZE(eap)) != -1) {
877 dprintf(stdout, " (set using extattr_set_fd)");
881 * If the general interface refuses to set the attribute,
882 * then we try all the specialized interfaces that we
885 if (eap->ea_namespace == EXTATTR_NAMESPACE_SYSTEM &&
886 !strcmp(eap->ea_name, POSIX1E_ACL_ACCESS_EXTATTR_NAME)) {
887 if (acl_set_fd(fd, EXTATTR_CONTENT(eap)) != -1) {
888 dprintf(stdout, " (set using acl_set_fd)");
892 if (eap->ea_namespace == EXTATTR_NAMESPACE_SYSTEM &&
893 !strcmp(eap->ea_name, POSIX1E_ACL_DEFAULT_EXTATTR_NAME)) {
894 if (acl_set_file(name, ACL_TYPE_DEFAULT,
895 EXTATTR_CONTENT(eap)) != -1) {
896 dprintf(stdout, " (set using acl_set_file)");
900 vprintf(stdout, " (unable to set)");
902 vprintf(stdout, "\n");
906 * skip over bit maps on the tape
912 while (spcl.c_type == TS_BITS || spcl.c_type == TS_CLRI)
917 * skip over a file on the tape
923 curfile.action = SKIP;
924 getfile(xtrnull, xtrnull, xtrnull);
928 * Extract a file from the tape.
929 * When an allocated block is found it is passed to the fill function;
930 * when an unallocated block (hole) is found, a zeroed buffer is passed
931 * to the skip function.
934 getfile(void (*datafill)(char *, size_t), void (*attrfill)(char *, size_t),
935 void (*skip)(char *, size_t))
939 int curblk, attrsize;
940 void (*fillit)(char *, size_t);
941 static char clearedbuf[MAXBSIZE];
942 char buf[MAXBSIZE / TP_BSIZE][TP_BSIZE];
947 attrsize = spcl.c_extsize;
948 if (spcl.c_type == TS_END)
949 panic("ran off end of tape\n");
950 if (spcl.c_magic != FS_UFS2_MAGIC)
951 panic("not at beginning of a file\n");
952 if (!gettingfile && setjmp(restart) != 0)
956 if (size == 0 && attrsize > 0) {
962 for (i = 0; i < spcl.c_count; i++) {
963 if (!readmapflag && i > TP_NINDIR) {
965 fprintf(stderr, "spcl.c_count = %jd\n",
966 (intmax_t)spcl.c_count);
969 panic("spcl.c_count = %jd\n",
970 (intmax_t)spcl.c_count);
972 if (readmapflag || spcl.c_addr[i]) {
973 readtape(&buf[curblk++][0]);
974 if (curblk == fssize / TP_BSIZE) {
975 (*fillit)((char *)buf, (long)(size > TP_BSIZE ?
976 fssize : (curblk - 1) * TP_BSIZE + size));
981 (*fillit)((char *)buf, (long)(size > TP_BSIZE ?
983 (curblk - 1) * TP_BSIZE + size));
986 (*skip)(clearedbuf, (long)(size > TP_BSIZE ?
989 if ((size -= TP_BSIZE) <= 0) {
990 if (size > -TP_BSIZE && curblk > 0) {
991 (*fillit)((char *)buf,
992 (long)((curblk * TP_BSIZE) + size));
1001 if (spcl.c_count - i > 1)
1002 dprintf(stdout, "skipping %d junk block(s)\n",
1003 spcl.c_count - i - 1);
1004 for (i++; i < spcl.c_count; i++) {
1005 if (!readmapflag && i > TP_NINDIR) {
1008 "spcl.c_count = %jd\n",
1009 (intmax_t)spcl.c_count);
1012 panic("spcl.c_count = %jd\n",
1013 (intmax_t)spcl.c_count);
1015 if (readmapflag || spcl.c_addr[i])
1021 if (gethead(&spcl) == GOOD && size > 0) {
1022 if (spcl.c_type == TS_ADDR)
1025 "Missing address (header) block for %s at %ld blocks\n",
1026 curfile.name, blksread);
1029 panic("getfile: lost data\n");
1035 * These variables are shared between the next two functions.
1037 static int extbufsize = 0;
1038 static char *extbuf;
1042 * Allocate a buffer into which to extract extended attributes.
1045 setupextattr(int extsize)
1049 if (extsize <= extbufsize)
1053 if ((extbuf = malloc(extsize)) != NULL) {
1054 extbufsize = extsize;
1059 fprintf(stderr, "Cannot extract %d bytes %s for inode %ju, name %s\n",
1060 extsize, "of extended attributes", (uintmax_t)curfile.ino,
1066 * Extract the next block of extended attributes.
1069 xtrattr(char *buf, size_t size)
1072 if (extloc + size > extbufsize)
1073 panic("overrun attribute buffer\n");
1074 memmove(&extbuf[extloc], buf, size);
1079 * Write out the next block of a file.
1082 xtrfile(char *buf, size_t size)
1087 if (write(ofile, buf, (int) size) == -1) {
1089 "write error extracting inode %ju, name %s\nwrite: %s\n",
1090 (uintmax_t)curfile.ino, curfile.name, strerror(errno));
1095 * Skip over a hole in a file.
1099 xtrskip(char *buf, size_t size)
1102 if (lseek(ofile, size, SEEK_CUR) == -1) {
1104 "seek error extracting inode %ju, name %s\nlseek: %s\n",
1105 (uintmax_t)curfile.ino, curfile.name, strerror(errno));
1111 * Collect the next block of a symbolic link.
1114 xtrlnkfile(char *buf, size_t size)
1118 if (pathlen > MAXPATHLEN) {
1119 fprintf(stderr, "symbolic link name: %s->%s%s; too long %d\n",
1120 curfile.name, lnkbuf, buf, pathlen);
1123 (void) strcat(lnkbuf, buf);
1127 * Skip over a hole in a symbolic link (should never happen).
1131 xtrlnkskip(char *buf, size_t size)
1134 fprintf(stderr, "unallocated block in symbolic link %s\n",
1140 * Collect the next block of a bit map.
1143 xtrmap(char *buf, size_t size)
1146 memmove(map, buf, size);
1151 * Skip over a hole in a bit map (should never happen).
1155 xtrmapskip(char *buf, size_t size)
1158 panic("hole in map\n");
1163 * Noop, when an extraction function is not needed.
1167 xtrnull(char *buf, size_t size)
1174 * Read TP_BSIZE blocks from the input.
1175 * Handle read errors, and end of media.
1180 long rd, newvol, i, oldnumtrec;
1181 int cnt, seek_failed;
1183 if (blkcnt + (byteslide > 0) < numtrec) {
1184 memmove(buf, &tapebuf[(blkcnt++ * TP_BSIZE) + byteslide], (long)TP_BSIZE);
1190 memmove(&tapebuf[-TP_BSIZE],
1191 &tapebuf[(numtrec-1) * TP_BSIZE], (long)TP_BSIZE);
1192 oldnumtrec = numtrec;
1193 for (i = 0; i < ntrec; i++)
1194 ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0;
1197 cnt = ntrec * TP_BSIZE;
1202 i = rmtread(&tapebuf[rd], cnt);
1205 i = read(mt, &tapebuf[rd], cnt);
1207 * Check for mid-tape short read error.
1208 * If found, skip rest of buffer and start with the next.
1210 if (!pipein && !pipecmdin && numtrec < ntrec && i > 0) {
1211 dprintf(stdout, "mid-media short read error.\n");
1215 * Handle partial block read.
1217 if ((pipein || pipecmdin) && i == 0 && rd > 0)
1219 else if (i > 0 && i != ntrec * TP_BSIZE) {
1220 if (pipein || pipecmdin) {
1228 * Short read. Process the blocks read.
1230 if (i % TP_BSIZE != 0)
1232 "partial block read: %ld should be %ld\n",
1233 i, ntrec * TP_BSIZE);
1234 numtrec = i / TP_BSIZE;
1238 * Handle read error.
1241 fprintf(stderr, "Tape read error while ");
1242 switch (curfile.action) {
1244 fprintf(stderr, "trying to set up tape\n");
1247 fprintf(stderr, "trying to resynchronize\n");
1250 fprintf(stderr, "restoring %s\n", curfile.name);
1253 fprintf(stderr, "skipping over inode %ju\n",
1254 (uintmax_t)curfile.ino);
1257 if (!yflag && !reply("continue"))
1259 i = ntrec * TP_BSIZE;
1260 memset(tapebuf, 0, i);
1263 seek_failed = (rmtseek(i, 1) < 0);
1266 seek_failed = (lseek(mt, i, SEEK_CUR) == (off_t)-1);
1270 "continuation failed: %s\n", strerror(errno));
1275 * Handle end of tape.
1278 vprintf(stdout, "End-of-tape encountered\n");
1287 if (rd % TP_BSIZE != 0)
1288 panic("partial block read: %ld should be %ld\n",
1289 rd, ntrec * TP_BSIZE);
1291 memmove(&tapebuf[rd], &endoftapemark, (long)TP_BSIZE);
1293 if (oldnumtrec == 0)
1296 blkcnt -= oldnumtrec;
1298 &tapebuf[(blkcnt++ * TP_BSIZE) + byteslide], (long)TP_BSIZE);
1304 findtapeblksize(void)
1308 for (i = 0; i < ntrec; i++)
1309 ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0;
1313 i = rmtread(tapebuf, ntrec * TP_BSIZE);
1316 i = read(mt, tapebuf, ntrec * TP_BSIZE);
1319 fprintf(stderr, "tape read error: %s\n", strerror(errno));
1322 if (i % TP_BSIZE != 0) {
1323 fprintf(stderr, "Tape block size (%ld) %s (%d)\n",
1324 i, "is not a multiple of dump block size", TP_BSIZE);
1327 ntrec = i / TP_BSIZE;
1329 vprintf(stdout, "Tape block size is %ld\n", ntrec);
1351 * Read the next block from the tape.
1352 * If it is not any valid header, return an error.
1355 gethead(struct s_spcl *buf)
1359 readtape((char *)buf);
1360 if (buf->c_magic != FS_UFS2_MAGIC && buf->c_magic != NFS_MAGIC) {
1361 if (buf->c_magic == OFS_MAGIC) {
1363 "Format of dump tape is too old. Must use\n");
1365 "a version of restore from before 2002.\n");
1368 if (swabl(buf->c_magic) != FS_UFS2_MAGIC &&
1369 buf->c_magic != NFS_MAGIC) {
1370 if (buf->c_magic == OFS_MAGIC) {
1372 "Format of dump tape is too old. Must use\n");
1374 "a version of restore from before 2002.\n");
1379 vprintf(stdout, "Note: Doing Byte swapping\n");
1383 if (checksum((int *)buf) == FAIL)
1386 swabst((u_char *)"8l4s1q8l2q17l", (u_char *)buf);
1387 swabst((u_char *)"l",(u_char *) &buf->c_level);
1388 swabst((u_char *)"2l4q",(u_char *) &buf->c_flags);
1392 switch (buf->c_type) {
1397 * Have to patch up missing information in bit map headers
1399 buf->c_size = buf->c_count * TP_BSIZE;
1400 if (buf->c_count > TP_NINDIR)
1403 for (i = 0; i < buf->c_count; i++)
1408 if (buf->c_magic == NFS_MAGIC &&
1409 (buf->c_flags & NFS_DR_NEWINODEFMT) == 0)
1420 * For old dump tapes, have to copy up old fields to
1423 if (buf->c_magic == NFS_MAGIC) {
1424 buf->c_tapea = buf->c_old_tapea;
1425 buf->c_firstrec = buf->c_old_firstrec;
1426 buf->c_date = _time32_to_time(buf->c_old_date);
1427 buf->c_ddate = _time32_to_time(buf->c_old_ddate);
1428 buf->c_atime = _time32_to_time(buf->c_old_atime);
1429 buf->c_mtime = _time32_to_time(buf->c_old_mtime);
1430 buf->c_birthtime = 0;
1431 buf->c_birthtimensec = 0;
1437 panic("gethead: unknown inode type %d\n", buf->c_type);
1440 if (dumpdate != 0 && _time64_to_time(buf->c_date) != dumpdate)
1441 fprintf(stderr, "Header with wrong dumpdate.\n");
1443 * If we're restoring a filesystem with the old (FreeBSD 1)
1444 * format inodes, copy the uid/gid to the new location
1447 buf->c_uid = buf->c_spare1[1];
1448 buf->c_gid = buf->c_spare1[2];
1450 buf->c_magic = FS_UFS2_MAGIC;
1451 tapeaddr = buf->c_tapea;
1458 * Check that a header is where it belongs and predict the next header
1461 accthdr(struct s_spcl *header)
1463 static ino_t previno = 0x7fffffff;
1464 static int prevtype;
1465 static long predict;
1468 if (header->c_type == TS_TAPE) {
1469 fprintf(stderr, "Volume header ");
1470 if (header->c_firstrec)
1471 fprintf(stderr, "begins with record %jd",
1472 (intmax_t)header->c_firstrec);
1473 fprintf(stderr, "\n");
1474 previno = 0x7fffffff;
1477 if (previno == 0x7fffffff)
1481 fprintf(stderr, "Dumped inodes map header");
1484 fprintf(stderr, "Used inodes map header");
1487 fprintf(stderr, "File header, ino %ju", (uintmax_t)previno);
1490 fprintf(stderr, "File continuation header, ino %ju",
1491 (uintmax_t)previno);
1494 fprintf(stderr, "End of tape header");
1497 if (predict != blksread - 1)
1498 fprintf(stderr, "; predicted %ld blocks, got %ld blocks",
1499 predict, blksread - 1);
1500 fprintf(stderr, "\n");
1503 if (header->c_type != TS_END)
1504 for (i = 0; i < header->c_count; i++)
1505 if (readmapflag || header->c_addr[i] != 0)
1509 prevtype = header->c_type;
1510 previno = header->c_inumber;
1514 * Find an inode header.
1515 * Complain if had to skip.
1518 findinode(struct s_spcl *header)
1520 static long skipcnt = 0;
1525 curfile.name = "<name unknown>";
1526 curfile.action = UNKNOWN;
1530 htype = header->c_type;
1535 * Skip up to the beginning of the next record
1537 for (i = 0; i < header->c_count; i++)
1538 if (header->c_addr[i])
1540 while (gethead(header) == FAIL ||
1541 _time64_to_time(header->c_date) != dumpdate) {
1545 if (byteslide < TP_BSIZE) {
1555 curfile.mode = header->c_mode;
1556 curfile.uid = header->c_uid;
1557 curfile.gid = header->c_gid;
1558 curfile.file_flags = header->c_file_flags;
1559 curfile.rdev = header->c_rdev;
1560 curfile.atime_sec = header->c_atime;
1561 curfile.atime_nsec = header->c_atimensec;
1562 curfile.mtime_sec = header->c_mtime;
1563 curfile.mtime_nsec = header->c_mtimensec;
1564 curfile.birthtime_sec = header->c_birthtime;
1565 curfile.birthtime_nsec = header->c_birthtimensec;
1566 curfile.extsize = header->c_extsize;
1567 curfile.size = header->c_size;
1568 curfile.ino = header->c_inumber;
1572 /* If we missed some tapes, get another volume. */
1573 if (tapesread & (tapesread + 1)) {
1577 curfile.ino = maxino;
1581 curfile.name = "<file removal list>";
1585 curfile.name = "<file dump list>";
1590 fprintf(stderr, "unexpected tape header\n");
1592 panic("unexpected tape header\n");
1596 fprintf(stderr, "unknown tape header type %d\n",
1599 panic("unknown tape header type %d\n",
1601 while (gethead(header) == FAIL ||
1602 _time64_to_time(header->c_date) != dumpdate) {
1606 if (byteslide < TP_BSIZE) {
1615 } while (htype == TS_ADDR);
1617 fprintf(stderr, "resync restore, skipped %ld %s\n",
1618 skipcnt, Dflag ? "bytes" : "blocks");
1627 j = sizeof(union u_spcl) / sizeof(int);
1634 /* What happens if we want to read restore tapes
1635 for a 16bit int machine??? */
1641 if (i != CHECKSUM) {
1642 fprintf(stderr, "Checksum error %o, inode %ju file %s\n", i,
1643 (uintmax_t)curfile.ino, curfile.name);
1653 msg(const char *fmt, ...)
1657 (void)vfprintf(stderr, fmt, ap);
1660 #endif /* RRESTORE */
1663 swabshort(u_char *sp, int n)
1668 c = sp[0]; sp[0] = sp[1]; sp[1] = c;
1675 swablong(u_char *sp, int n)
1680 c = sp[0]; sp[0] = sp[3]; sp[3] = c;
1681 c = sp[2]; sp[2] = sp[1]; sp[1] = c;
1688 swabquad(u_char *sp, int n)
1693 c = sp[0]; sp[0] = sp[7]; sp[7] = c;
1694 c = sp[1]; sp[1] = sp[6]; sp[6] = c;
1695 c = sp[2]; sp[2] = sp[5]; sp[5] = c;
1696 c = sp[3]; sp[3] = sp[4]; sp[4] = c;
1703 swabst(u_char *cp, u_char *sp)
1709 case '0': case '1': case '2': case '3': case '4':
1710 case '5': case '6': case '7': case '8': case '9':
1711 n = (n * 10) + (*cp++ - '0');
1714 case 's': case 'w': case 'h':
1717 sp = swabshort(sp, n);
1723 sp = swablong(sp, n);
1729 sp = swabquad(sp, n);
1739 fprintf(stderr, "Unknown conversion character: %c\n",
1752 swabst((u_char *)"l", (u_char *)&x);