2 * Copyright (c) 1980, 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 static const char copyright[] =
36 "@(#) Copyright (c) 1980, 1991, 1993, 1994\n\
37 The Regents of the University of California. All rights reserved.\n";
42 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/1/95";
44 static const char rcsid[] =
48 #include <sys/param.h>
51 #include <sys/disklabel.h>
53 #include <ufs/ufs/dinode.h>
54 #include <ufs/ffs/fs.h>
56 #include <protocols/dumprestore.h>
72 #include "pathnames.h"
74 int notify = 0; /* notify operator flag */
75 int blockswritten = 0; /* number of blocks written on current tape */
76 int tapeno = 0; /* current tape number */
77 int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */
78 int ntrec = NTREC; /* # tape blocks in each tape record */
79 int cartridge = 0; /* Assume non-cartridge tape */
80 int dokerberos = 0; /* Use Kerberos authentication */
81 long dev_bsize = 1; /* recalculated below */
82 long blocksperfile; /* output blocks per file */
83 char *host = NULL; /* remote host (if any) */
86 * Possible superblock locations ordered from most to least likely.
88 static int sblock_try[] = SBLOCKSEARCH;
90 static long numarg(const char *, long, long);
91 static void obsolete(int *, char **[]);
92 static void usage(void) __dead2;
95 main(int argc, char *argv[])
104 int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
105 int just_estimate = 0;
109 spcl.c_date = _time_to_time64(time(NULL));
111 tsize = 0; /* Default later, based on 'c' option for cart tapes */
112 if ((tape = getenv("TAPE")) == NULL)
113 tape = _PATH_DEFTAPE;
114 dumpdates = _PATH_DUMPDATES;
116 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
117 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
123 obsolete(&argc, &argv);
125 #define optstring "0123456789aB:b:cd:f:h:kns:ST:uWwD:"
127 #define optstring "0123456789aB:b:cd:f:h:ns:ST:uWwD:"
129 while ((ch = getopt(argc, argv, optstring)) != -1)
133 case '0': case '1': case '2': case '3': case '4':
134 case '5': case '6': case '7': case '8': case '9':
138 case 'a': /* `auto-size', Write to EOM. */
142 case 'B': /* blocks per output file */
143 blocksperfile = numarg("number of blocks per file",
147 case 'b': /* blocks per tape write */
148 ntrec = numarg("number of blocks per write",
152 case 'c': /* Tape is cart. not 9-track */
156 case 'd': /* density, in bits per inch */
157 density = numarg("density", 10L, 327670L) / 10;
158 if (density >= 625 && !bflag)
159 ntrec = HIGHDENSITYTREC;
162 case 'f': /* output file */
171 honorlevel = numarg("honor level", 0L, 10L);
180 case 'n': /* notify operators */
184 case 's': /* tape size, feet */
185 tsize = numarg("tape size", 1L, 0L) * 12 * 10;
188 case 'S': /* exit after estimating # of tapes */
192 case 'T': /* time of last dump */
193 spcl.c_ddate = unctime(optarg);
194 if (spcl.c_ddate < 0) {
195 (void)fprintf(stderr, "bad time \"%s\"\n",
203 case 'u': /* update /etc/dumpdates */
207 case 'W': /* what to do */
210 exit(X_FINOK); /* do nothing else */
219 (void)fprintf(stderr, "Must specify disk or file system\n");
225 (void)fprintf(stderr, "Unknown arguments to dump:");
227 (void)fprintf(stderr, " %s", *argv++);
228 (void)fprintf(stderr, "\n");
231 if (Tflag && uflag) {
232 (void)fprintf(stderr,
233 "You cannot use the T and u flags together.\n");
236 if (strcmp(tape, "-") == 0) {
238 tape = "standard output";
242 blocksperfile = blocksperfile / ntrec * ntrec; /* round down */
243 else if (!unlimited) {
245 * Determine how to default tape size and density
248 * 9-track 1600 bpi (160 bytes/.1") 2300 ft.
249 * 9-track 6250 bpi (625 bytes/.1") 2300 ft.
250 * cartridge 8000 bpi (100 bytes/.1") 1700 ft.
252 * hilit19 hits again: "
255 density = cartridge ? 100 : 160;
257 tsize = cartridge ? 1700L*120L : 2300L*120L;
260 if (strchr(tape, ':')) {
262 tape = strchr(host, ':');
265 if (index(tape, '\n')) {
266 (void)fprintf(stderr, "invalid characters in tape\n");
269 if (rmthost(host) == 0)
272 (void)fprintf(stderr, "remote dump not enabled\n");
276 (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
278 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
280 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
281 signal(SIGTRAP, sig);
282 if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
284 if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
286 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
287 signal(SIGSEGV, sig);
288 if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
289 signal(SIGTERM, sig);
290 if (signal(SIGINT, interrupt) == SIG_IGN)
291 signal(SIGINT, SIG_IGN);
293 getfstab(); /* /etc/fstab snarfed */
295 * disk can be either the full special file name,
296 * the suffix of the special file name,
297 * the special name missing the leading '/',
298 * the file system name with or without the leading '/'.
300 dt = fstabsearch(disk);
302 disk = rawname(dt->fs_spec);
303 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
304 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
306 (void)strncpy(spcl.c_dev, disk, NAMELEN);
307 (void)strncpy(spcl.c_filesys, "an unlisted file system",
310 spcl.c_dev[NAMELEN-1]='\0';
311 spcl.c_filesys[NAMELEN-1]='\0';
312 (void)strcpy(spcl.c_label, "none");
313 (void)gethostname(spcl.c_host, NAMELEN);
314 spcl.c_level = level - '0';
315 spcl.c_type = TS_TAPE;
317 getdumptime(); /* /etc/dumpdates snarfed */
319 if (spcl.c_date == 0) {
320 tmsg = "the epoch\n";
322 time_t t = _time64_to_time(spcl.c_date);
325 msg("Date of this level %c dump: %s", level, tmsg);
326 if (spcl.c_ddate == 0) {
327 tmsg = "the epoch\n";
329 time_t t = _time64_to_time(spcl.c_ddate);
332 msg("Date of last level %c dump: %s", lastlevel, tmsg);
333 msg("Dumping %s ", disk);
335 msgtail("(%s) ", dt->fs_file);
337 msgtail("to %s on host %s\n", tape, host);
339 msgtail("to %s\n", tape);
341 if ((diskfd = open(disk, O_RDONLY)) < 0)
342 err(X_STARTUP, "Cannot open %s", disk);
343 if (fstat(diskfd, &sb) != 0)
344 err(X_STARTUP, "%s: stat", disk);
345 if (S_ISDIR(sb.st_mode))
346 errx(X_STARTUP, "%s: unknown file system", disk);
348 sblock = (struct fs *)sblock_buf;
349 for (i = 0; sblock_try[i] != -1; i++) {
350 bread(sblock_try[i] >> dev_bshift, (char *) sblock, SBLOCKSIZE);
351 if ((sblock->fs_magic == FS_UFS1_MAGIC ||
352 (sblock->fs_magic == FS_UFS2_MAGIC &&
353 sblock->fs_sblockloc == sblock_try[i])) &&
354 sblock->fs_bsize <= MAXBSIZE &&
355 sblock->fs_bsize >= sizeof(struct fs))
358 if (sblock_try[i] == -1)
359 quit("Cannot find file system superblock\n");
360 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
361 dev_bshift = ffs(dev_bsize) - 1;
362 if (dev_bsize != (1 << dev_bshift))
363 quit("dev_bsize (%ld) is not a power of 2", dev_bsize);
364 tp_bshift = ffs(TP_BSIZE) - 1;
365 if (TP_BSIZE != (1 << tp_bshift))
366 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
367 maxino = sblock->fs_ipg * sblock->fs_ncg;
368 mapsize = roundup(howmany(maxino, CHAR_BIT), TP_BSIZE);
369 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
370 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
371 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
372 tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
374 nonodump = spcl.c_level < honorlevel;
377 setproctitle("%s: pass 1: regular files", disk);
378 msg("mapping (Pass I) [regular files]\n");
379 anydirskipped = mapfiles(maxino, &tapesize);
382 setproctitle("%s: pass 2: directories", disk);
383 msg("mapping (Pass II) [directories]\n");
384 while (anydirskipped) {
385 anydirskipped = mapdirs(maxino, &tapesize);
388 if (pipeout || unlimited) {
389 tapesize += 10; /* 10 trailer blocks */
390 msg("estimated %ld tape blocks.\n", tapesize);
395 fetapes = (double) tapesize / blocksperfile;
396 else if (cartridge) {
397 /* Estimate number of tapes, assuming streaming stops at
398 the end of each block written, and not in mid-block.
399 Assume no erroneous blocks; this can be compensated
400 for with an artificially low tape size. */
402 ( (double) tapesize /* blocks */
403 * TP_BSIZE /* bytes/block */
404 * (1.0/density) /* 0.1" / byte " */
406 (double) tapesize /* blocks */
407 * (1.0/ntrec) /* streaming-stops per block */
408 * 15.48 /* 0.1" / streaming-stop " */
409 ) * (1.0 / tsize ); /* tape / 0.1" " */
411 /* Estimate number of tapes, for old fashioned 9-track
413 int tenthsperirg = (density == 625) ? 3 : 7;
415 ( (double) tapesize /* blocks */
416 * TP_BSIZE /* bytes / block */
417 * (1.0/density) /* 0.1" / byte " */
419 (double) tapesize /* blocks */
420 * (1.0/ntrec) /* IRG's / block */
421 * tenthsperirg /* 0.1" / IRG " */
422 ) * (1.0 / tsize ); /* tape / 0.1" " */
424 etapes = fetapes; /* truncating assignment */
426 /* count the dumped inodes map on each additional tape */
427 tapesize += (etapes - 1) *
428 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
429 tapesize += etapes + 10; /* headers + 10 trailer blks */
430 msg("estimated %ld tape blocks on %3.2f tape(s).\n",
435 * If the user only wants an estimate of the number of
442 * Allocate tape buffer.
446 "can't allocate tape buffers - try a smaller blocking factor.\n");
449 (void)time((time_t *)&(tstart_writing));
450 dumpmap(usedinomap, TS_CLRI, maxino - 1);
453 setproctitle("%s: pass 3: directories", disk);
454 msg("dumping (Pass III) [directories]\n");
455 dirty = 0; /* XXX just to get gcc to shut up */
456 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
457 if (((ino - 1) % CHAR_BIT) == 0) /* map is offset by 1 */
461 if ((dirty & 1) == 0)
464 * Skip directory inodes deleted and maybe reallocated
466 dp = getino(ino, &mode);
469 (void)dumpino(dp, ino);
473 setproctitle("%s: pass 4: regular files", disk);
474 msg("dumping (Pass IV) [regular files]\n");
475 for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
476 if (((ino - 1) % CHAR_BIT) == 0) /* map is offset by 1 */
480 if ((dirty & 1) == 0)
483 * Skip inodes deleted and reallocated as directories.
485 dp = getino(ino, &mode);
488 (void)dumpino(dp, ino);
491 (void)time((time_t *)&(tend_writing));
492 spcl.c_type = TS_END;
493 for (i = 0; i < ntrec; i++)
494 writeheader(maxino - 1);
496 msg("DUMP: %jd tape blocks\n", (intmax_t)spcl.c_tapea);
498 msg("DUMP: %jd tape blocks on %d volume%s\n",
499 (intmax_t)spcl.c_tapea, spcl.c_volume,
500 (spcl.c_volume == 1) ? "" : "s");
502 /* report dump performance, avoid division through zero */
503 if (tend_writing - tstart_writing == 0)
504 msg("finished in less than a second\n");
506 msg("finished in %d seconds, throughput %jd KBytes/sec\n",
507 tend_writing - tstart_writing, (intmax_t)(spcl.c_tapea /
508 (tend_writing - tstart_writing)));
512 broadcast("DUMP IS DONE!\a\a\n");
513 msg("DUMP IS DONE\n");
522 "usage: dump [-0123456789ac"
526 "nSu] [-B records] [-b blocksize] [-D dumpdates]\n"
527 " [-d density] [-f file] [-h level] [-s feet] "
528 "[-T date] filesystem\n"
534 * Pick up a numeric argument. It must be nonnegative and in the given
535 * range (except that a vmax of 0 means unlimited).
538 numarg(const char *meaning, long vmin, long vmax)
543 val = strtol(optarg, &p, 10);
545 errx(1, "illegal %s -- %s", meaning, optarg);
546 if (val < vmin || (vmax && val > vmax))
547 errx(1, "%s must be between %ld and %ld", meaning, vmin, vmax);
562 quit("Signal on pipe: cannot recover\n");
563 msg("Rewriting attempted as response to unknown signal.\n");
564 (void)fflush(stderr);
565 (void)fflush(stdout);
570 msg("SIGSEGV: ABORTING!\n");
571 (void)signal(SIGSEGV, SIG_DFL);
572 (void)kill(0, SIGSEGV);
580 static char rawbuf[MAXPATHLEN];
584 if (stat(cp, &sb) == 0) {
586 * If the name already refers to a raw device, return
587 * it immediately without tampering.
589 if ((sb.st_mode & S_IFMT) == S_IFCHR)
593 dp = strrchr(cp, '/');
598 (void)strlcpy(rawbuf, cp, MAXPATHLEN - 1);
600 (void)strlcat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
601 (void)strlcat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
607 * Change set of key letters and ordered arguments into something
608 * getopt(3) will like.
611 obsolete(int *argcp, char **argvp[])
614 char *ap, **argv, *flagsp, **nargv, *p;
620 /* Return if no arguments or first argument has leading dash. */
622 if (argc == 1 || *ap == '-')
625 /* Allocate space for new arguments. */
626 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
627 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
633 for (flags = 0; *ap; ++ap) {
644 warnx("option requires an argument -- %c", *ap);
647 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
651 (void)strcpy(&nargv[0][2], *argv);
665 /* Terminate flags. */
671 /* Copy remaining arguments. */
672 while ((*nargv++ = *argv++));
674 /* Update argument count. */
675 *argcp = nargv - *argvp - 1;