void
printdumpinfo(void)
{
time_t t;
t = _time64_to_time(spcl.c_date);
fprintf(stdout, "Dump date: %s", ctime(&t));
t = _time64_to_time(spcl.c_ddate);
fprintf(stdout, "Dumped from: %s",
(spcl.c_ddate == 0) ? "the epoch\n" : ctime(&t));
if (spcl.c_host[0] == '\0')
return;
fprintf(stderr, "Level %jd dump of %s on %s:%s\n",
(intmax_t)spcl.c_level, spcl.c_filesys, spcl.c_host, spcl.c_dev);
fprintf(stderr, "Label: %s\n", spcl.c_label);
}
void
getdumptime(void)
{
struct dumpdates *ddp;
int i;
char *fname;
fname = disk;
#ifdef FDEBUG
msg("Looking for name %s in dumpdates = %s for level = %d\n",
fname, dumpdates, level);
#endif
spcl.c_ddate = 0;
lastlevel = 0;
initdumptimes();
/*
* Go find the entry with the same name for a lower increment
* and older date
*/
ITITERATE(i, ddp) {
if (strncmp(fname, ddp->dd_name, sizeof (ddp->dd_name)) != 0)
continue;
if (ddp->dd_level >= level)
continue;
if (ddp->dd_ddate <= _time64_to_time(spcl.c_ddate))
continue;
spcl.c_ddate = _time_to_time64(ddp->dd_ddate);
lastlevel = ddp->dd_level;
}
}
void
putdumptime(void)
{
FILE *df;
struct dumpdates *dtwalk;
int i;
int fd;
char *fname;
char *tmsg;
if(uflag == 0)
return;
if ((df = fopen(dumpdates, "r+")) == NULL)
quit("cannot rewrite %s: %s\n", dumpdates, strerror(errno));
fd = fileno(df);
(void) flock(fd, LOCK_EX);
fname = disk;
free((char *)ddatev);
ddatev = 0;
nddates = 0;
readdumptimes(df);
if (fseek(df, 0L, 0) < 0)
quit("fseek: %s\n", strerror(errno));
spcl.c_ddate = 0;
ITITERATE(i, dtwalk) {
if (strncmp(fname, dtwalk->dd_name,
sizeof (dtwalk->dd_name)) != 0)
continue;
if (dtwalk->dd_level != level)
continue;
goto found;
}
/*
* construct the new upper bound;
* Enough room has been allocated.
*/
dtwalk = ddatev[nddates] =
(struct dumpdates *)calloc(1, sizeof (struct dumpdates));
nddates += 1;
found:
(void) strncpy(dtwalk->dd_name, fname, sizeof (dtwalk->dd_name));
dtwalk->dd_level = level;
dtwalk->dd_ddate = _time64_to_time(spcl.c_date);
ITITERATE(i, dtwalk) {
dumprecout(df, dtwalk);
}
/*
* Verify that the tape drive can be accessed and
* that it actually is a dump tape.
*/
void
setup(void)
{
int i, j, *ip;
struct stat stbuf;
vprintf(stdout, "Verify tape and initialize maps\n");
if (pipecmdin) {
if (setenv("RESTORE_VOLUME", "1", 1) == -1) {
fprintf(stderr, "Cannot set $RESTORE_VOLUME: %s\n",
strerror(errno));
done(1);
}
popenfp = popen(magtape, "r");
mt = popenfp ? fileno(popenfp) : -1;
} else
#ifdef RRESTORE
if (host)
mt = rmtopen(magtape, 0);
else
#endif
if (pipein)
mt = 0;
else
mt = open(magtape, O_RDONLY, 0);
if (mt < 0) {
fprintf(stderr, "%s: %s\n", magtape, strerror(errno));
done(1);
}
volno = 1;
setdumpnum();
FLUSHTAPEBUF();
if (!pipein && !pipecmdin && !bflag)
findtapeblksize();
if (gethead(&spcl) == FAIL) {
fprintf(stderr, "Tape is not a dump tape\n");
done(1);
}
if (pipein) {
endoftapemark.s_spcl.c_magic = FS_UFS2_MAGIC;
endoftapemark.s_spcl.c_type = TS_END;
ip = (int *)&endoftapemark;
j = sizeof(union u_spcl) / sizeof(int);
i = 0;
do
i += *ip++;
while (--j);
endoftapemark.s_spcl.c_checksum = CHECKSUM - i;
}
if (vflag || command == 't')
printdumpinfo();
dumptime = _time64_to_time(spcl.c_ddate);
dumpdate = _time64_to_time(spcl.c_date);
if (stat(".", &stbuf) < 0) {
fprintf(stderr, "cannot stat .: %s\n", strerror(errno));
done(1);
}
if (stbuf.st_blksize > 0 && stbuf.st_blksize < TP_BSIZE )
fssize = TP_BSIZE;
if (stbuf.st_blksize >= TP_BSIZE && stbuf.st_blksize <= MAXBSIZE)
fssize = stbuf.st_blksize;
if (((TP_BSIZE - 1) & stbuf.st_blksize) != 0) {
fprintf(stderr, "Warning: filesystem with non-multiple-of-%d "
"blocksize (%d);\n", TP_BSIZE, stbuf.st_blksize);
fssize = roundup(fssize, TP_BSIZE);
fprintf(stderr, "\twriting using blocksize %ld\n", fssize);
}
if (spcl.c_volume != 1) {
fprintf(stderr, "Tape is not volume 1 of the dump\n");
done(1);
}
if (gethead(&spcl) == FAIL) {
dprintf(stdout, "header read failed at %ld blocks\n", blksread);
panic("no header after volume mark!\n");
}
findinode(&spcl);
if (spcl.c_type != TS_CLRI) {
fprintf(stderr, "Cannot find file removal list\n");
done(1);
}
maxino = (spcl.c_count * TP_BSIZE * NBBY) + 1;
dprintf(stdout, "maxino = %ju\n", (uintmax_t)maxino);
map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY));
if (map == NULL)
panic("no memory for active inode map\n");
usedinomap = map;
curfile.action = USING;
getfile(xtrmap, xtrmapskip, xtrmapskip);
if (spcl.c_type != TS_BITS) {
fprintf(stderr, "Cannot find file dump list\n");
done(1);
}
map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY));
if (map == (char *)NULL)
panic("no memory for file dump list\n");
dumpmap = map;
curfile.action = USING;
getfile(xtrmap, xtrmapskip, xtrmapskip);
/*
* If there may be whiteout entries on the tape, pretend that the
* whiteout inode exists, so that the whiteout entries can be
* extracted.
*/
SETINO(WINO, dumpmap);
/* 'r' restores don't call getvol() for tape 1, so mark it as read. */
if (command == 'r')
tapesread = 1;
}
/*
* Prompt user to load a new dump volume.
* "Nextvol" is the next suggested volume to use.
* This suggested volume is enforced when doing full
* or incremental restores, but can be overridden by
* the user when only extracting a subset of the files.
*/
void
getvol(long nextvol)
{
int64_t prevtapea;
long i, newvol, savecnt;
union u_spcl tmpspcl;
# define tmpbuf tmpspcl.s_spcl
char buf[TP_BSIZE];
if (nextvol == 1) {
tapesread = 0;
gettingfile = 0;
}
prevtapea = tapeaddr;
savecnt = blksread;
if (pipein) {
if (nextvol != 1) {
panic("Changing volumes on pipe input?\n");
/* Avoid looping if we couldn't ask the user. */
if (yflag || ferror(terminal) || feof(terminal))
done(1);
}
if (volno == 1)
return;
goto gethdr;
}
again:
if (pipein)
done(1); /* pipes do not get a second chance */
if (command == 'R' || command == 'r' || curfile.action != SKIP)
newvol = nextvol;
else
newvol = 0;
while (newvol <= 0) {
if (tapesread == 0) {
fprintf(stderr, "%s%s%s%s%s%s%s",
"You have not read any tapes yet.\n",
"If you are extracting just a few files,",
" start with the last volume\n",
"and work towards the first; restore",
" can quickly skip tapes that\n",
"have no further files to extract.",
" Otherwise, begin with volume 1.\n");
} else {
fprintf(stderr, "You have read volumes");
strcpy(buf, ": ");
for (i = 0; i < 32; i++)
if (tapesread & (1 << i)) {
fprintf(stderr, "%s%ld", buf, i + 1);
strcpy(buf, ", ");
}
fprintf(stderr, "\n");
}
do {
fprintf(stderr, "Specify next volume #: ");
(void) fflush(stderr);
if (fgets(buf, BUFSIZ, terminal) == NULL)
done(1);
} while (buf[0] == '\n');
newvol = atoi(buf);
if (newvol <= 0) {
fprintf(stderr,
"Volume numbers are positive numerics\n");
}
}
if (newvol == volno) {
tapesread |= 1 << (volno - 1);
return;
}
closemt();
fprintf(stderr, "Mount tape volume %ld\n", newvol);
fprintf(stderr, "Enter ``none'' if there are no more tapes\n");
fprintf(stderr, "otherwise enter tape name (default: %s) ", magtape);
(void) fflush(stderr);
if (fgets(buf, BUFSIZ, terminal) == NULL)
done(1);
if (!strcmp(buf, "none\n")) {
terminateinput();
return;
}
if (buf[0] != '\n') {
(void) strcpy(magtape, buf);
magtape[strlen(magtape) - 1] = '\0';
}
if (pipecmdin) {
char volno[sizeof("2147483647")];
(void)sprintf(volno, "%ld", newvol);
if (setenv("RESTORE_VOLUME", volno, 1) == -1) {
fprintf(stderr, "Cannot set $RESTORE_VOLUME: %s\n",
strerror(errno));
done(1);
}
popenfp = popen(magtape, "r");
mt = popenfp ? fileno(popenfp) : -1;
} else
#ifdef RRESTORE
if (host)
mt = rmtopen(magtape, 0);
else
#endif
mt = open(magtape, O_RDONLY, 0);
if (mt == -1) {
fprintf(stderr, "Cannot open %s\n", magtape);
volno = -1;
goto again;
}
gethdr:
volno = newvol;
setdumpnum();
FLUSHTAPEBUF();
if (gethead(&tmpbuf) == FAIL) {
dprintf(stdout, "header read failed at %ld blocks\n", blksread);
fprintf(stderr, "tape is not dump tape\n");
volno = 0;
goto again;
}
if (tmpbuf.c_volume != volno) {
fprintf(stderr, "Wrong volume (%jd)\n",
(intmax_t)tmpbuf.c_volume);
volno = 0;
goto again;
}
if (_time64_to_time(tmpbuf.c_date) != dumpdate ||
_time64_to_time(tmpbuf.c_ddate) != dumptime) {
time_t t = _time64_to_time(tmpbuf.c_date);
fprintf(stderr, "Wrong dump date\n\tgot: %s", ctime(&t));
fprintf(stderr, "\twanted: %s", ctime(&dumpdate));
volno = 0;
goto again;
}
tapesread |= 1 << (volno - 1);
blksread = savecnt;
/*
* If continuing from the previous volume, skip over any
* blocks read already at the end of the previous volume.
*
* If coming to this volume at random, skip to the beginning
* of the next record.
*/
dprintf(stdout, "last rec %jd, tape starts with %jd\n",
(intmax_t)prevtapea, (intmax_t)tmpbuf.c_tapea);
if (tmpbuf.c_type == TS_TAPE) {
if (curfile.action != USING) {
/*
* XXX Dump incorrectly sets c_count to 1 in the
* volume header of the first tape, so ignore
* c_count when volno == 1.
*/
if (volno != 1)
for (i = tmpbuf.c_count; i > 0; i--)
readtape(buf);
} else if (tmpbuf.c_tapea <= prevtapea) {
/*
* Normally the value of c_tapea in the volume
* header is the record number of the header itself.
* However in the volume header following an EOT-
* terminated tape, it is the record number of the
* first continuation data block (dump bug?).
*
* The next record we want is `prevtapea + 1'.
*/
i = prevtapea + 1 - tmpbuf.c_tapea;
dprintf(stderr, "Skipping %ld duplicate record%s.\n",
i, i > 1 ? "s" : "");
while (--i >= 0)
readtape(buf);
}
}
if (curfile.action == USING) {
if (volno == 1)
panic("active file into volume 1\n");
return;
}
(void) gethead(&spcl);
findinode(&spcl);
if (gettingfile) {
gettingfile = 0;
longjmp(restart, 1);
}
}
/*
* Find an inode header.
* Complain if had to skip.
*/
static void
findinode(struct s_spcl *header)
{
static long skipcnt = 0;
long i;
char buf[TP_BSIZE];
int htype;
curfile.name = "<name unknown>";
curfile.action = UNKNOWN;
curfile.mode = 0;
curfile.ino = 0;
do {
htype = header->c_type;
switch (htype) {
case TS_ADDR:
/*
* Skip up to the beginning of the next record
*/
for (i = 0; i < header->c_count; i++)
if (header->c_addr[i])
readtape(buf);
while (gethead(header) == FAIL ||
_time64_to_time(header->c_date) != dumpdate) {
skipcnt++;
if (Dflag) {
byteslide++;
if (byteslide < TP_BSIZE) {
blkcnt--;
blksread--;
} else
byteslide = 0;
}
}
break;
case TS_INODE:
curfile.mode = header->c_mode;
curfile.uid = header->c_uid;
curfile.gid = header->c_gid;
curfile.file_flags = header->c_file_flags;
curfile.rdev = header->c_rdev;
curfile.atime_sec = header->c_atime;
curfile.atime_nsec = header->c_atimensec;
curfile.mtime_sec = header->c_mtime;
curfile.mtime_nsec = header->c_mtimensec;
curfile.birthtime_sec = header->c_birthtime;
curfile.birthtime_nsec = header->c_birthtimensec;
curfile.extsize = header->c_extsize;
curfile.size = header->c_size;
curfile.ino = header->c_inumber;
break;
case TS_END:
/* If we missed some tapes, get another volume. */
if (tapesread & (tapesread + 1)) {
getvol(0);
continue;
}
curfile.ino = maxino;
break;
case TS_CLRI:
curfile.name = "<file removal list>";
break;
case TS_BITS:
curfile.name = "<file dump list>";
break;
case TS_TAPE:
if (Dflag)
fprintf(stderr, "unexpected tape header\n");
else
panic("unexpected tape header\n");
default:
if (Dflag)
fprintf(stderr, "unknown tape header type %d\n",
spcl.c_type);
else
panic("unknown tape header type %d\n",
spcl.c_type);
while (gethead(header) == FAIL ||
_time64_to_time(header->c_date) != dumpdate) {
skipcnt++;
if (Dflag) {
byteslide++;
if (byteslide < TP_BSIZE) {
blkcnt--;
blksread--;
} else
byteslide = 0;
}
}
}
} while (htype == TS_ADDR);
if (skipcnt > 0)
fprintf(stderr, "resync restore, skipped %ld %s\n",
skipcnt, Dflag ? "bytes" : "blocks");
skipcnt = 0;
}
/*
* Read the next block from the tape.
* If it is not any valid header, return an error.
*/
static int
gethead(struct s_spcl *buf)
{
long i;
readtape((char *)buf);
if (buf->c_magic != FS_UFS2_MAGIC && buf->c_magic != NFS_MAGIC) {
if (buf->c_magic == OFS_MAGIC) {
fprintf(stderr,
"Format of dump tape is too old. Must use\n");
fprintf(stderr,
"a version of restore from before 2002.\n");
return (FAIL);
}
if (swabl(buf->c_magic) != FS_UFS2_MAGIC &&
buf->c_magic != NFS_MAGIC) {
if (buf->c_magic == OFS_MAGIC) {
fprintf(stderr,
"Format of dump tape is too old. Must use\n");
fprintf(stderr,
"a version of restore from before 2002.\n");
}
return (FAIL);
}
if (!Bcvt) {
vprintf(stdout, "Note: Doing Byte swapping\n");
Bcvt = 1;
}
}
if (checksum((int *)buf) == FAIL)
return (FAIL);
if (Bcvt) {
swabst((u_char *)"8l4s1q8l2q17l", (u_char *)buf);
swabst((u_char *)"l",(u_char *) &buf->c_level);
swabst((u_char *)"2l4q",(u_char *) &buf->c_flags);
}
readmapflag = 0;
switch (buf->c_type) {
case TS_CLRI:
case TS_BITS:
/*
* Have to patch up missing information in bit map headers
*/
buf->c_size = buf->c_count * TP_BSIZE;
if (buf->c_count > TP_NINDIR)
readmapflag = 1;
else
for (i = 0; i < buf->c_count; i++)
buf->c_addr[i]++;
/* FALL THROUGH */
case TS_TAPE:
if (buf->c_magic == NFS_MAGIC &&
(buf->c_flags & NFS_DR_NEWINODEFMT) == 0)
oldinofmt = 1;
/* FALL THROUGH */
case TS_END:
buf->c_inumber = 0;
/* FALL THROUGH */
case TS_ADDR:
case TS_INODE:
/*
* For old dump tapes, have to copy up old fields to
* new locations.
*/
if (buf->c_magic == NFS_MAGIC) {
buf->c_tapea = buf->c_old_tapea;
buf->c_firstrec = buf->c_old_firstrec;
buf->c_date = _time32_to_time(buf->c_old_date);
buf->c_ddate = _time32_to_time(buf->c_old_ddate);
buf->c_atime = _time32_to_time(buf->c_old_atime);
buf->c_mtime = _time32_to_time(buf->c_old_mtime);
buf->c_birthtime = 0;
buf->c_birthtimensec = 0;
buf->c_extsize = 0;
}
break;
default:
panic("gethead: unknown inode type %d\n", buf->c_type);
break;
}
if (dumpdate != 0 && _time64_to_time(buf->c_date) != dumpdate)
fprintf(stderr, "Header with wrong dumpdate.\n");
/*
* If we're restoring a filesystem with the old (FreeBSD 1)
* format inodes, copy the uid/gid to the new location
*/
if (oldinofmt) {
buf->c_uid = buf->c_spare1[1];
buf->c_gid = buf->c_spare1[2];
}
buf->c_magic = FS_UFS2_MAGIC;
tapeaddr = buf->c_tapea;
if (dflag)
accthdr(buf);
return(GOOD);
}
int
main(int argc, char *argv[])
{
struct stat sb;
ino_t ino;
int dirty;
union dinode *dp;
struct fstab *dt;
char *map, *mntpt;
int ch, mode, mntflags;
int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
int just_estimate = 0;
ino_t maxino;
char *tmsg;
spcl.c_date = _time_to_time64(time(NULL));
tsize = 0; /* Default later, based on 'c' option for cart tapes */
dumpdates = _PATH_DUMPDATES;
popenout = NULL;
tape = NULL;
temp = _PATH_DTMP;
if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
level = 0;
rsync_friendly = 0;
if (argc < 2)
usage();
obsolete(&argc, &argv);
while ((ch = getopt(argc, argv,
"0123456789aB:b:C:cD:d:f:h:LnP:RrSs:T:uWw")) != -1)
switch (ch) {
/* dump level */
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
level = 10 * level + ch - '0';
break;
case 'a': /* `auto-size', Write to EOM. */
unlimited = 1;
break;
case 'B': /* blocks per output file */
blocksperfile = numarg("number of blocks per file",
1L, 0L);
break;
case 'b': /* blocks per tape write */
ntrec = numarg("number of blocks per write",
1L, 1000L);
break;
case 'C':
cachesize = numarg("cachesize", 0, 0) * 1024 * 1024;
break;
case 'c': /* Tape is cart. not 9-track */
cartridge = 1;
break;
case 'D':
dumpdates = optarg;
break;
case 'd': /* density, in bits per inch */
density = numarg("density", 10L, 327670L) / 10;
if (density >= 625 && !bflag)
ntrec = HIGHDENSITYTREC;
break;
case 'f': /* output file */
if (popenout != NULL)
errx(X_STARTUP, "You cannot use the P and f "
"flags together.\n");
tape = optarg;
break;
case 'h':
honorlevel = numarg("honor level", 0L, 10L);
break;
case 'L':
snapdump = 1;
break;
case 'n': /* notify operators */
notify = 1;
break;
case 'P':
if (tape != NULL)
errx(X_STARTUP, "You cannot use the P and f "
"flags together.\n");
popenout = optarg;
break;
case 'r': /* store slightly less data to be friendly to rsync */
if (rsync_friendly < 1)
rsync_friendly = 1;
break;
case 'R': /* store even less data to be friendlier to rsync */
if (rsync_friendly < 2)
rsync_friendly = 2;
break;
case 'S': /* exit after estimating # of tapes */
just_estimate = 1;
break;
case 's': /* tape size, feet */
tsize = numarg("tape size", 1L, 0L) * 12 * 10;
break;
case 'T': /* time of last dump */
spcl.c_ddate = unctime(optarg);
if (spcl.c_ddate < 0) {
(void)fprintf(stderr, "bad time \"%s\"\n",
optarg);
exit(X_STARTUP);
}
Tflag = 1;
lastlevel = -1;
break;
case 'u': /* update /etc/dumpdates */
uflag = 1;
break;
case 'W': /* what to do */
case 'w':
lastdump(ch);
exit(X_FINOK); /* do nothing else */
default:
usage();
}
argc -= optind;
argv += optind;
if (argc < 1) {
(void)fprintf(stderr, "Must specify disk or file system\n");
exit(X_STARTUP);
}
disk = *argv++;
argc--;
if (argc >= 1) {
(void)fprintf(stderr, "Unknown arguments to dump:");
while (argc--)
(void)fprintf(stderr, " %s", *argv++);
(void)fprintf(stderr, "\n");
exit(X_STARTUP);
}
if (rsync_friendly && (level > 0)) {
(void)fprintf(stderr, "%s %s\n", "rsync friendly options",
"can be used only with level 0 dumps.");
exit(X_STARTUP);
}
if (Tflag && uflag) {
(void)fprintf(stderr,
"You cannot use the T and u flags together.\n");
exit(X_STARTUP);
}
if (popenout) {
tape = "child pipeline process";
} else if (tape == NULL && (tape = getenv("TAPE")) == NULL)
tape = _PATH_DEFTAPE;
if (strcmp(tape, "-") == 0) {
pipeout++;
tape = "standard output";
}
if (blocksperfile)
blocksperfile = blocksperfile / ntrec * ntrec; /* round down */
else if (!unlimited) {
/*
* Determine how to default tape size and density
*
* density tape size
* 9-track 1600 bpi (160 bytes/.1") 2300 ft.
* 9-track 6250 bpi (625 bytes/.1") 2300 ft.
* cartridge 8000 bpi (100 bytes/.1") 1700 ft.
* (450*4 - slop)
* hilit19 hits again: "
*/
if (density == 0)
density = cartridge ? 100 : 160;
if (tsize == 0)
tsize = cartridge ? 1700L*120L : 2300L*120L;
}
if (strchr(tape, ':')) {
host = tape;
tape = strchr(host, ':');
*tape++ = '\0';
#ifdef RDUMP
if (strchr(tape, '\n')) {
(void)fprintf(stderr, "invalid characters in tape\n");
exit(X_STARTUP);
}
if (rmthost(host) == 0)
exit(X_STARTUP);
#else
(void)fprintf(stderr, "remote dump not enabled\n");
exit(X_STARTUP);
#endif
}
(void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
signal(SIGHUP, sig);
if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
signal(SIGTRAP, sig);
if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
signal(SIGFPE, sig);
if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
signal(SIGBUS, sig);
if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
signal(SIGSEGV, sig);
if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
signal(SIGTERM, sig);
if (signal(SIGINT, interrupt) == SIG_IGN)
signal(SIGINT, SIG_IGN);
dump_getfstab(); /* /etc/fstab snarfed */
/*
* disk can be either the full special file name,
* the suffix of the special file name,
* the special name missing the leading '/',
* the file system name with or without the leading '/'.
*/
dt = fstabsearch(disk);
if (dt != NULL) {
disk = rawname(dt->fs_spec);
if (disk == NULL)
errx(X_STARTUP, "%s: unknown file system", dt->fs_spec);
(void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
(void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
} else {
(void)strncpy(spcl.c_dev, disk, NAMELEN);
(void)strncpy(spcl.c_filesys, "an unlisted file system",
NAMELEN);
}
spcl.c_dev[NAMELEN-1]='\0';
spcl.c_filesys[NAMELEN-1]='\0';
if ((mntpt = getmntpt(disk, &mntflags)) != 0) {
if (mntflags & MNT_RDONLY) {
if (snapdump != 0) {
msg("WARNING: %s\n",
"-L ignored for read-only filesystem.");
snapdump = 0;
}
} else if (snapdump == 0) {
msg("WARNING: %s\n",
"should use -L when dumping live read-write "
"filesystems!");
} else {
char snapname[BUFSIZ], snapcmd[BUFSIZ];
snprintf(snapname, sizeof snapname, "%s/.snap", mntpt);
if ((stat(snapname, &sb) < 0) || !S_ISDIR(sb.st_mode)) {
msg("WARNING: %s %s\n",
"-L requested but snapshot location",
snapname);
msg(" %s: %s\n",
"is not a directory",
"dump downgraded, -L ignored");
snapdump = 0;
} else {
snprintf(snapname, sizeof snapname,
"%s/.snap/dump_snapshot", mntpt);
snprintf(snapcmd, sizeof snapcmd, "%s %s %s",
_PATH_MKSNAP_FFS, mntpt, snapname);
unlink(snapname);
if (system(snapcmd) != 0)
errx(X_STARTUP, "Cannot create %s: %s\n",
snapname, strerror(errno));
if ((diskfd = open(snapname, O_RDONLY)) < 0) {
unlink(snapname);
errx(X_STARTUP, "Cannot open %s: %s\n",
snapname, strerror(errno));
}
unlink(snapname);
if (fstat(diskfd, &sb) != 0)
err(X_STARTUP, "%s: stat", snapname);
spcl.c_date = _time_to_time64(sb.st_mtime);
}
}
} else if (snapdump != 0) {
msg("WARNING: Cannot use -L on an unmounted filesystem.\n");
snapdump = 0;
}
if (snapdump == 0) {
if ((diskfd = open(disk, O_RDONLY)) < 0)
err(X_STARTUP, "Cannot open %s", disk);
if (fstat(diskfd, &sb) != 0)
err(X_STARTUP, "%s: stat", disk);
if (S_ISDIR(sb.st_mode))
errx(X_STARTUP, "%s: unknown file system", disk);
}
(void)strcpy(spcl.c_label, "none");
(void)gethostname(spcl.c_host, NAMELEN);
spcl.c_level = level;
spcl.c_type = TS_TAPE;
if (rsync_friendly) {
/* don't store real dump times */
spcl.c_date = 0;
spcl.c_ddate = 0;
}
if (spcl.c_date == 0) {
tmsg = "the epoch\n";
} else {
time_t t = _time64_to_time(spcl.c_date);
tmsg = ctime(&t);
}
msg("Date of this level %d dump: %s", level, tmsg);
if (!Tflag && (!rsync_friendly))
getdumptime(); /* /etc/dumpdates snarfed */
if (spcl.c_ddate == 0) {
tmsg = "the epoch\n";
} else {
time_t t = _time64_to_time(spcl.c_ddate);
tmsg = ctime(&t);
}
if (lastlevel < 0)
msg("Date of last (level unknown) dump: %s", tmsg);
else
msg("Date of last level %d dump: %s", lastlevel, tmsg);
msg("Dumping %s%s ", snapdump ? "snapshot of ": "", disk);
if (dt != NULL)
msgtail("(%s) ", dt->fs_file);
if (host)
msgtail("to %s on host %s\n", tape, host);
else
msgtail("to %s\n", tape);
sync();
sblock = (struct fs *)sblock_buf;
for (i = 0; sblock_try[i] != -1; i++) {
sblock->fs_fsize = SBLOCKSIZE; /* needed in bread */
bread(sblock_try[i] >> dev_bshift, (char *) sblock, SBLOCKSIZE);
if ((sblock->fs_magic == FS_UFS1_MAGIC ||
(sblock->fs_magic == FS_UFS2_MAGIC &&
sblock->fs_sblockloc == sblock_try[i])) &&
sblock->fs_bsize <= MAXBSIZE &&
sblock->fs_bsize >= sizeof(struct fs))
break;
}
if (sblock_try[i] == -1)
quit("Cannot find file system superblock\n");
dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
dev_bshift = ffs(dev_bsize) - 1;
if (dev_bsize != (1 << dev_bshift))
quit("dev_bsize (%ld) is not a power of 2", dev_bsize);
tp_bshift = ffs(TP_BSIZE) - 1;
if (TP_BSIZE != (1 << tp_bshift))
quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
maxino = sblock->fs_ipg * sblock->fs_ncg;
mapsize = roundup(howmany(maxino, CHAR_BIT), TP_BSIZE);
usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
nonodump = spcl.c_level < honorlevel;
passno = 1;
setproctitle("%s: pass 1: regular files", disk);
msg("mapping (Pass I) [regular files]\n");
anydirskipped = mapfiles(maxino, &tapesize);
passno = 2;
setproctitle("%s: pass 2: directories", disk);
msg("mapping (Pass II) [directories]\n");
while (anydirskipped) {
anydirskipped = mapdirs(maxino, &tapesize);
}
if (pipeout || unlimited) {
tapesize += 10; /* 10 trailer blocks */
msg("estimated %ld tape blocks.\n", tapesize);
} else {
double fetapes;
if (blocksperfile)
fetapes = (double) tapesize / blocksperfile;
else if (cartridge) {
/* Estimate number of tapes, assuming streaming stops at
the end of each block written, and not in mid-block.
Assume no erroneous blocks; this can be compensated
for with an artificially low tape size. */
fetapes =
( (double) tapesize /* blocks */
* TP_BSIZE /* bytes/block */
* (1.0/density) /* 0.1" / byte " */
+
(double) tapesize /* blocks */
* (1.0/ntrec) /* streaming-stops per block */
* 15.48 /* 0.1" / streaming-stop " */
) * (1.0 / tsize ); /* tape / 0.1" " */
} else {
/* Estimate number of tapes, for old fashioned 9-track
tape */
int tenthsperirg = (density == 625) ? 3 : 7;
fetapes =
( (double) tapesize /* blocks */
* TP_BSIZE /* bytes / block */
* (1.0/density) /* 0.1" / byte " */
+
(double) tapesize /* blocks */
* (1.0/ntrec) /* IRG's / block */
* tenthsperirg /* 0.1" / IRG " */
) * (1.0 / tsize ); /* tape / 0.1" " */
}
etapes = fetapes; /* truncating assignment */
etapes++;
/* count the dumped inodes map on each additional tape */
tapesize += (etapes - 1) *
(howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
tapesize += etapes + 10; /* headers + 10 trailer blks */
msg("estimated %ld tape blocks on %3.2f tape(s).\n",
tapesize, fetapes);
}
/*
* If the user only wants an estimate of the number of
* tapes, exit now.
*/
if (just_estimate)
exit(0);
/*
* Allocate tape buffer.
*/
if (!alloctape())
quit(
"can't allocate tape buffers - try a smaller blocking factor.\n");
startnewtape(1);
(void)time((time_t *)&(tstart_writing));
dumpmap(usedinomap, TS_CLRI, maxino - 1);
passno = 3;
setproctitle("%s: pass 3: directories", disk);
msg("dumping (Pass III) [directories]\n");
dirty = 0; /* XXX just to get gcc to shut up */
for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
if (((ino - 1) % CHAR_BIT) == 0) /* map is offset by 1 */
dirty = *map++;
else
dirty >>= 1;
if ((dirty & 1) == 0)
continue;
/*
* Skip directory inodes deleted and maybe reallocated
*/
dp = getino(ino, &mode);
if (mode != IFDIR)
continue;
(void)dumpino(dp, ino);
}
passno = 4;
setproctitle("%s: pass 4: regular files", disk);
msg("dumping (Pass IV) [regular files]\n");
for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
if (((ino - 1) % CHAR_BIT) == 0) /* map is offset by 1 */
dirty = *map++;
else
dirty >>= 1;
if ((dirty & 1) == 0)
continue;
/*
* Skip inodes deleted and reallocated as directories.
*/
dp = getino(ino, &mode);
if (mode == IFDIR)
continue;
(void)dumpino(dp, ino);
}
(void)time((time_t *)&(tend_writing));
spcl.c_type = TS_END;
for (i = 0; i < ntrec; i++)
writeheader(maxino - 1);
if (pipeout)
msg("DUMP: %jd tape blocks\n", (intmax_t)spcl.c_tapea);
else
msg("DUMP: %jd tape blocks on %d volume%s\n",
(intmax_t)spcl.c_tapea, spcl.c_volume,
(spcl.c_volume == 1) ? "" : "s");
/* report dump performance, avoid division through zero */
if (tend_writing - tstart_writing == 0)
msg("finished in less than a second\n");
else
msg("finished in %jd seconds, throughput %jd KBytes/sec\n",
(intmax_t)tend_writing - tstart_writing,
(intmax_t)(spcl.c_tapea /
(tend_writing - tstart_writing)));
putdumptime();
trewind();
broadcast("DUMP IS DONE!\a\a\n");
msg("DUMP IS DONE\n");
Exit(X_FINOK);
/* NOTREACHED */
}
void
printstat(const char *cp, ino_t inum, union dinode *dp)
{
struct group *grp;
struct passwd *pw;
ufs2_daddr_t blocks;
int64_t gen;
char *p;
time_t t;
printf("%s: ", cp);
switch (DIP(dp, di_mode) & IFMT) {
case IFDIR:
puts("directory");
break;
case IFREG:
puts("regular file");
break;
case IFBLK:
printf("block special (%#jx)", (uintmax_t)DIP(dp, di_rdev));
break;
case IFCHR:
printf("character special (%#jx)", DIP(dp, di_rdev));
break;
case IFLNK:
fputs("symlink",stdout);
if (DIP(dp, di_size) > 0 &&
DIP(dp, di_size) < sblock.fs_maxsymlinklen &&
DIP(dp, di_blocks) == 0) {
if (sblock.fs_magic == FS_UFS1_MAGIC)
p = (caddr_t)dp->dp1.di_db;
else
p = (caddr_t)dp->dp2.di_db;
printf(" to `%.*s'\n", (int) DIP(dp, di_size), p);
} else {
putchar('\n');
}
break;
case IFSOCK:
puts("socket");
break;
case IFIFO:
puts("fifo");
break;
}
printf("I=%lu MODE=%o SIZE=%ju", (u_long)inum, DIP(dp, di_mode),
(uintmax_t)DIP(dp, di_size));
if (sblock.fs_magic != FS_UFS1_MAGIC) {
t = _time64_to_time(dp->dp2.di_birthtime);
p = ctime(&t);
printf("\n\tBTIME=%15.15s %4.4s [%d nsec]", &p[4], &p[20],
dp->dp2.di_birthnsec);
}
if (sblock.fs_magic == FS_UFS1_MAGIC)
t = _time32_to_time(dp->dp1.di_mtime);
else
t = _time64_to_time(dp->dp2.di_mtime);
p = ctime(&t);
printf("\n\tMTIME=%15.15s %4.4s [%d nsec]", &p[4], &p[20],
DIP(dp, di_mtimensec));
if (sblock.fs_magic == FS_UFS1_MAGIC)
t = _time32_to_time(dp->dp1.di_ctime);
else
t = _time64_to_time(dp->dp2.di_ctime);
p = ctime(&t);
printf("\n\tCTIME=%15.15s %4.4s [%d nsec]", &p[4], &p[20],
DIP(dp, di_ctimensec));
if (sblock.fs_magic == FS_UFS1_MAGIC)
t = _time32_to_time(dp->dp1.di_atime);
else
t = _time64_to_time(dp->dp2.di_atime);
p = ctime(&t);
printf("\n\tATIME=%15.15s %4.4s [%d nsec]\n", &p[4], &p[20],
DIP(dp, di_atimensec));
if ((pw = getpwuid(DIP(dp, di_uid))))
printf("OWNER=%s ", pw->pw_name);
else
printf("OWNUID=%u ", DIP(dp, di_uid));
if ((grp = getgrgid(DIP(dp, di_gid))))
printf("GRP=%s ", grp->gr_name);
else
printf("GID=%u ", DIP(dp, di_gid));
blocks = DIP(dp, di_blocks);
gen = DIP(dp, di_gen);
printf("LINKCNT=%d FLAGS=%#x BLKCNT=%jx GEN=%jx\n", DIP(dp, di_nlink),
DIP(dp, di_flags), (intmax_t)blocks, (intmax_t)gen);
}
/*
* Dump passes 3 and 4.
*
* Dump the contents of an inode to tape.
*/
void
dumpino(union dinode *dp, ino_t ino)
{
int ind_level, cnt, last, added;
off_t size;
char buf[TP_BSIZE];
if (newtape) {
newtape = 0;
dumpmap(dumpinomap, TS_BITS, ino);
}
CLRINO(ino, dumpinomap);
/*
* Zero out the size of a snapshot so that it will be dumped
* as a zero length file.
*/
if ((DIP(dp, di_flags) & SF_SNAPSHOT) != 0) {
DIP_SET(dp, di_size, 0);
DIP_SET(dp, di_flags, DIP(dp, di_flags) & ~SF_SNAPSHOT);
}
if (sblock->fs_magic == FS_UFS1_MAGIC) {
spcl.c_mode = dp->dp1.di_mode;
spcl.c_size = dp->dp1.di_size;
spcl.c_extsize = 0;
spcl.c_atime = _time32_to_time(dp->dp1.di_atime);
spcl.c_atimensec = dp->dp1.di_atimensec;
spcl.c_mtime = _time32_to_time(dp->dp1.di_mtime);
spcl.c_mtimensec = dp->dp1.di_mtimensec;
spcl.c_birthtime = 0;
spcl.c_birthtimensec = 0;
spcl.c_rdev = dp->dp1.di_rdev;
spcl.c_file_flags = dp->dp1.di_flags;
spcl.c_uid = dp->dp1.di_uid;
spcl.c_gid = dp->dp1.di_gid;
} else {
spcl.c_mode = dp->dp2.di_mode;
spcl.c_size = dp->dp2.di_size;
spcl.c_extsize = dp->dp2.di_extsize;
spcl.c_atime = _time64_to_time(dp->dp2.di_atime);
spcl.c_atimensec = dp->dp2.di_atimensec;
spcl.c_mtime = _time64_to_time(dp->dp2.di_mtime);
spcl.c_mtimensec = dp->dp2.di_mtimensec;
spcl.c_birthtime = _time64_to_time(dp->dp2.di_birthtime);
spcl.c_birthtimensec = dp->dp2.di_birthnsec;
spcl.c_rdev = dp->dp2.di_rdev;
spcl.c_file_flags = dp->dp2.di_flags;
spcl.c_uid = dp->dp2.di_uid;
spcl.c_gid = dp->dp2.di_gid;
}
spcl.c_type = TS_INODE;
spcl.c_count = 0;
switch (DIP(dp, di_mode) & S_IFMT) {
case 0:
/*
* Freed inode.
*/
return;
case S_IFLNK:
/*
* Check for short symbolic link.
*/
if (DIP(dp, di_size) > 0 &&
DIP(dp, di_size) < sblock->fs_maxsymlinklen) {
spcl.c_addr[0] = 1;
spcl.c_count = 1;
added = appendextdata(dp);
writeheader(ino);
if (sblock->fs_magic == FS_UFS1_MAGIC)
memmove(buf, (caddr_t)dp->dp1.di_db,
(u_long)DIP(dp, di_size));
else
memmove(buf, (caddr_t)dp->dp2.di_db,
(u_long)DIP(dp, di_size));
buf[DIP(dp, di_size)] = '\0';
writerec(buf, 0);
writeextdata(dp, ino, added);
return;
}
/* FALLTHROUGH */
case S_IFDIR:
case S_IFREG:
if (DIP(dp, di_size) > 0)
break;
/* FALLTHROUGH */
case S_IFIFO:
case S_IFSOCK:
case S_IFCHR:
case S_IFBLK:
added = appendextdata(dp);
writeheader(ino);
writeextdata(dp, ino, added);
return;
default:
msg("Warning: undefined file type 0%o\n",
DIP(dp, di_mode) & IFMT);
return;
}
if (DIP(dp, di_size) > NDADDR * sblock->fs_bsize) {
cnt = NDADDR * sblock->fs_frag;
last = 0;
} else {
cnt = howmany(DIP(dp, di_size), sblock->fs_fsize);
last = 1;
}
if (sblock->fs_magic == FS_UFS1_MAGIC)
ufs1_blksout(&dp->dp1.di_db[0], cnt, ino);
else
ufs2_blksout(dp, &dp->dp2.di_db[0], cnt, ino, last);
if ((size = DIP(dp, di_size) - NDADDR * sblock->fs_bsize) <= 0)
return;
for (ind_level = 0; ind_level < NIADDR; ind_level++) {
dmpindir(dp, ino, DIP(dp, di_ib[ind_level]), ind_level, &size);
if (size <= 0)
return;
}
}
