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/*
* Ported to Linux's Second Extended File System as part of the
* dump and restore backup suit
* Remy Card <card@Linux.EU.Org>, 1994-1997
* Stelian Pop <stelian@popies.net>, 1999-2000
* Stelian Pop <stelian@popies.net> - Alcve <www.alcove.com>, 2000-2002
*/
/*-
* Copyright (c) 1980, 1991, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static const char rcsid[] =
"$Id: main.c,v 1.94 2004/07/05 15:12:45 stelian Exp $";
#endif /* not lint */
#include <config.h>
#include <compatlfs.h>
#include <ctype.h>
#include <compaterr.h>
#include <fcntl.h>
#include <fstab.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <mntent.h>
#include <sys/param.h>
#include <sys/time.h>
#include <time.h>
#ifdef __linux__
#include <linux/types.h>
#ifdef HAVE_EXT2FS_EXT2_FS_H
#include <ext2fs/ext2_fs.h>
#else
#include <linux/ext2_fs.h>
#endif
#include <ext2fs/ext2fs.h>
#include <sys/stat.h>
#include <bsdcompat.h>
#include <linux/fs.h> /* for definition of BLKFLSBUF */
#elif defined sunos
#include <sys/vnode.h>
#include <ufs/inode.h>
#include <ufs/fs.h>
#else
#include <ufs/ufs/dinode.h>
#include <ufs/ffs/fs.h>
#endif
#include <protocols/dumprestore.h>
#include "dump.h"
#include "pathnames.h"
#include "bylabel.h"
#ifndef SBOFF
#define SBOFF (SBLOCK * DEV_BSIZE)
#endif
int abortifconnerr = 1; /* set to 1 if lib dumprmt.o should exit on connection errors
otherwise just print a message using msg */
/*
* Dump maps used to describe what is to be dumped.
*/
int mapsize; /* size of the state maps */
char *usedinomap; /* map of allocated inodes */
char *dumpdirmap; /* map of directories to be dumped */
char *dumpinomap; /* map of files to be dumped */
char *metainomap; /* which of the inodes in dumpinomap will get
only their metadata dumped */
const char *disk; /* name of the disk file */
char tape[MAXPATHLEN];/* name of the tape file */
char *tapeprefix; /* prefix of the tape file */
char *dumpdates; /* name of the file containing dump date information*/
char lastlevel[NUM_STR_SIZE];/* dump level of previous dump */
char level[NUM_STR_SIZE];/* dump level of this dump */
int zipflag; /* which compression method */
int Afile = -1; /* archive file descriptor */
int AfileActive = 1;/* Afile flag */
int uflag; /* update flag */
int mflag; /* dump metadata only if possible */
int Mflag; /* multi-volume flag */
int qflag; /* quit on errors flag */
int vflag; /* verbose flag */
int breademax = 32; /* maximum number of bread errors before we quit */
char *eot_script; /* end of volume script fiag */
int diskfd; /* disk file descriptor */
int tapefd; /* tape file descriptor */
int pipeout; /* true => output to standard output */
int fifoout; /* true => output to fifo */
dump_ino_t curino; /* current inumber; used globally */
int newtape; /* new tape flag */
int density; /* density in 0.1" units */
long tapesize; /* estimated tape size, blocks */
long tsize; /* tape size in 0.1" units */
long asize; /* number of 0.1" units written on current tape */
int etapes; /* estimated number of tapes */
int nonodump; /* if set, do not honor UF_NODUMP user flags */
int unlimited; /* if set, write to end of medium */
int compressed; /* if set, dump is to be compressed */
long long bytes_written;/* total bytes written to tape */
long uncomprblks; /* uncompressed blocks written to tape */
int notify; /* notify operator flag */
int blockswritten; /* number of blocks written on current tape */
int tapeno; /* current tape number */
time_t tstart_writing; /* when started writing the first tape block */
time_t tend_writing; /* after writing the last tape block */
#ifdef __linux__
ext2_filsys fs;
#else
struct fs *sblock; /* the file system super block */
char sblock_buf[MAXBSIZE];
#endif
long xferrate; /* averaged transfer rate of all volumes */
long dev_bsize; /* block size of underlying disk device */
int dev_bshift; /* log2(dev_bsize) */
int tp_bshift; /* log2(TP_BSIZE) */
dump_ino_t volinfo[TP_NINOS];/* which inode on which volume archive info */
#ifdef USE_QFA
int gTapeposfd;
char *gTapeposfile;
char gTps[255];
int32_t gThisDumpDate;
#endif /* USE_QFA */
struct dumptime *dthead; /* head of the list version */
int nddates; /* number of records (might be zero) */
int ddates_in; /* we have read the increment file */
struct dumpdates **ddatev; /* the arrayfied version */
int notify = 0; /* notify operator flag */
int blockswritten = 0; /* number of blocks written on current tape */
int tapeno = 0; /* current tape number */
int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */
int ntrec = NTREC; /* # blocks in each tape record */
int cartridge = 0; /* Assume non-cartridge tape */
#ifdef USE_QFA
int tapepos = 0; /* assume no QFA tapeposition needed by user */
#endif /* USE_QFA */
int dokerberos = 0; /* Use Kerberos authentication */
long dev_bsize = 1; /* recalculated below */
long *blocksperfiles = NULL; /* output blocks per file(s) */
char *host = NULL; /* remote host (if any) */
int sizest = 0; /* return size estimate only */
int compressed = 0; /* use zlib to compress the output, compress level 1-9 */
long long bytes_written = 0; /* total bytes written */
long uncomprblks = 0;/* uncompressed blocks written */
long smtc_errno;
#ifdef __linux__
char *__progname;
#endif
int maxbsize = 1024*1024; /* XXX MAXBSIZE from sys/param.h */
static long numarg __P((const char *, long, long));
static long *numlistarg __P((const char *, long, long));
static void obsolete __P((int *, char **[]));
static void usage __P((void));
static void do_exclude_from_file __P((char *));
static void do_exclude_ino_str __P((char *));
static void incompat_flags __P((int, char, char));
static char* iexclude_bitmap = NULL; /* the inode exclude bitmap */
static unsigned int iexclude_bitmap_bytes = 0; /* size of bitmap in bytes */
int
main(int argc, char *argv[])
{
dump_ino_t ino;
int dirty;
struct dinode *dp;
struct mntent *dt;
char *map;
int ch, pch = 0;
int i, anydirskipped;
int aflag = 0, bflag = 0, Tflag = 0, honorlevel = 1;
dump_ino_t maxino;
struct STAT statbuf;
dev_t filedev = 0;
#ifdef __linux__
errcode_t retval;
char directory[MAXPATHLEN];
char pathname[MAXPATHLEN];
#endif
time_t tnow;
char *diskparam;
char *Apath = NULL;
spcl.c_label[0] = '\0';
spcl.c_date = time(NULL);
#ifdef __linux__
__progname = argv[0];
directory[0] = 0;
initialize_ext2_error_table();
#endif
tsize = 0; /* Default later, based on 'c' option for cart tapes */
unlimited = 1;
eot_script = NULL;
if ((tapeprefix = getenv("TAPE")) == NULL)
tapeprefix = _PATH_DEFTAPE;
dumpdates = _PATH_DUMPDATES;
if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
memset(&lastlevel, 0, NUM_STR_SIZE);
memset(&level, 0, NUM_STR_SIZE);
if (argc < 2)
usage();
obsolete(&argc, &argv);
#ifdef USE_QFA
gTapeposfd = -1;
#endif /* USE_QFA */
while ((ch = getopt(argc, argv,
"0123456789A:aB:b:cd:D:e:E:f:F:h:I:"
#ifdef HAVE_BZLIB
"j::"
#endif
"L:"
#ifdef KERBEROS
"k"
#endif
"mMnq"
#ifdef USE_QFA
"Q:"
#endif
"s:ST:uvWw"
#ifdef HAVE_LZO
"y"
#endif
#ifdef HAVE_ZLIB
"z::"
#endif
)) != -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':
if ((pch >= '0') && (pch <= '9') && (strlen(level) < NUM_STR_SIZE))
level[strlen(level)] = ch;
else
level[0] = ch;
pch = ch;
break;
case 'A': /* archive file */
Apath = optarg;
break;
case 'a': /* `auto-size', Write to EOM. */
unlimited = 1;
aflag = 1;
break;
case 'B': /* blocks per output file */
unlimited = 0;
blocksperfiles = numlistarg("number of blocks per file",
1L, 0L);
break;
case 'b': /* blocks per tape write */
ntrec = numarg("number of blocks per write",
1L, 1048576L);
if (ntrec > maxbsize/1024) {
msg("Please choose a blocksize <= %dkB\n",
maxbsize/1024);
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
bflag = 1;
break;
case 'c': /* Tape is cart. not 9-track */
unlimited = 0;
cartridge = 1;
break;
case 'd': /* density, in bits per inch */
unlimited = 0;
density = numarg("density", 10L, 327670L) / 10;
if (density >= 625 && !bflag)
ntrec = HIGHDENSITYTREC;
break;
case 'D': /* path of dumpdates file */
dumpdates = optarg;
break;
/* 04-Feb-00 ILC */
case 'e': /* exclude an inode */
{
char *p = optarg, *q;
while ((q = strchr(p, ','))) {
*q = '\0';
do_exclude_ino_str(p);
p = q + 1;
}
do_exclude_ino_str(p);
}
break;
case 'E': /* exclude inodes read from file */
do_exclude_from_file(optarg);
break;
case 'f': /* output file */
tapeprefix = optarg;
break;
case 'F': /* end of tape script */
eot_script = optarg;
break;
case 'h':
honorlevel = numarg("honor level", 0L, 10L);
break;
#ifdef HAVE_BZLIB
case 'j':
compressed = 2;
zipflag = COMPRESS_BZLIB;
if (optarg)
compressed = numarg("compress level", 1L, 9L);
break;
#endif /* HAVE_BZLIB */
case 'I':
breademax =
numarg ("number of errors to ignore", 0L, 0L);
break;
#ifdef KERBEROS
case 'k':
dokerberos = 1;
break;
#endif
case 'L':
/*
* Note that although there are LBLSIZE characters,
* the last must be '\0', so the limit on strlen()
* is really LBLSIZE-1.
*/
strncpy(spcl.c_label, optarg, LBLSIZE);
spcl.c_label[LBLSIZE-1] = '\0';
if (strlen(optarg) > LBLSIZE-1) {
msg(
"WARNING Label `%s' is larger than limit of %d characters.\n",
optarg, LBLSIZE-1);
msg("WARNING: Using truncated label `%s'.\n",
spcl.c_label);
}
break;
case 'm': /* metadata only flag */
mflag = 1;
break;
case 'M': /* multi-volume flag */
Mflag = 1;
break;
case 'n': /* notify operators */
notify = 1;
break;
case 'q':
qflag = 1;
break;
#ifdef USE_QFA
case 'Q': /* create tapeposfile */
gTapeposfile = optarg;
tapepos = 1;
break;
#endif /* USE_QFA */
case 's': /* tape size, feet */
unlimited = 0;
tsize = numarg("tape size", 1L, 0L) * 12 * 10;
break;
case 'S':
sizest = 1; /* return size estimate only */
break;
case 'T': /* time of last dump */
spcl.c_ddate = unctime(optarg);
if (spcl.c_ddate < 0) {
msg("bad time \"%s\"\n", optarg);
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
Tflag = 1;
lastlevel[0] = '?'; lastlevel[1] = '\0';
break;
case 'u': /* update dumpdates */
uflag = 1;
break;
case 'v': /* verbose */
vflag = 1;
break;
case 'W': /* what to do */
case 'w':
lastdump(ch);
exit(X_FINOK); /* do nothing else */
#ifdef HAVE_LZO
case 'y':
compressed = 2;
zipflag = COMPRESS_LZO;
break;
#endif /* HAVE_LZO */
#ifdef HAVE_ZLIB
case 'z':
compressed = 2;
zipflag = COMPRESS_ZLIB;
if (optarg)
compressed = numarg("compress level", 1L, 9L);
break;
#endif /* HAVE_ZLIB */
default:
usage();
}
argc -= optind;
argv += optind;
if (argc < 1) {
msg("Must specify disk or filesystem\n");
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
diskparam = *argv++;
if (strlen(diskparam) >= MAXPATHLEN) {
msg("Disk or filesystem name too long: %s\n", diskparam);
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
argc--;
incompat_flags(Tflag && uflag, 'T', 'u');
incompat_flags(aflag && blocksperfiles, 'a', 'B');
incompat_flags(aflag && cartridge, 'a', 'c');
incompat_flags(aflag && density, 'a', 'd');
incompat_flags(aflag && tsize, 'a', 's');
if (strcmp(tapeprefix, "-") == 0) {
pipeout++;
tapeprefix = "standard output";
}
if (blocksperfiles && !compressed)
for (i = 1; i <= *blocksperfiles; i++)
blocksperfiles[i] = blocksperfiles[i] / 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;
}
{
int i;
char *n;
if ((n = strchr(tapeprefix, ':'))) {
for (i = 0; i < (n - tapeprefix); i++) {
if (tapeprefix[i] == '/')
break;
}
if (tapeprefix[i] != '/') {
host = tapeprefix;
tapeprefix = strchr(host, ':');
*tapeprefix++ = '\0';
#ifdef RDUMP
if (index(tapeprefix, '\n')) {
msg("invalid characters in tape\n");
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
if (rmthost(host) == 0)
exit(X_STARTUP);
#else
msg("remote dump not enabled\n");
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
#endif
}
}
}
(void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
if (Apath && (Afile = open(Apath, O_WRONLY|O_CREAT|O_TRUNC,
S_IRUSR | S_IWUSR | S_IRGRP |
S_IWGRP | S_IROTH | S_IWOTH)) < 0) {
msg("Cannot open %s for writing: %s\n",
optarg, strerror(errno));
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
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);
#ifdef SIGXCPU
signal(SIGXCPU, SIG_IGN);
#endif /* SIGXCPU */
#ifdef SIGXFSZ
signal(SIGXFSZ, SIG_IGN);
#endif /* SIGXFSZ */
set_operators(); /* /etc/group snarfed */
getfstab(); /* /etc/fstab snarfed */
/*
* disk may end in / and this can confuse
* fstabsearch.
*/
i = strlen(diskparam) - 1;
if (i > 1 && diskparam[i] == '/')
if (!(i == 6 && !strcmp(diskparam, "LABEL=/")))
diskparam[i] = '\0';
disk = get_device_name(diskparam);
if (!disk)
disk = strdup(diskparam);
/*
* 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 '/'.
*/
if ((dt = fstabsearch(disk)) != NULL) {
/* if found then only one parameter (i.e. partition)
* is allowed */
if (argc >= 1) {
(void)fprintf(stderr, "Unknown arguments to dump:");
while (argc--)
(void)fprintf(stderr, " %s", *argv++);
(void)fprintf(stderr, "\n");
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
disk = rawname(dt->mnt_fsname);
(void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
(void)strncpy(spcl.c_filesys, dt->mnt_dir, NAMELEN);
} else {
#ifdef __linux__
#ifdef HAVE_REALPATH
if (realpath(disk, pathname) == NULL)
#endif
strcpy(pathname, disk);
/*
* The argument could be now a mountpoint of
* a filesystem specified in fstab. Search for it.
*/
if ((dt = fstabsearch(pathname)) != NULL) {
disk = rawname(dt->mnt_fsname);
(void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
(void)strncpy(spcl.c_filesys, dt->mnt_dir, NAMELEN);
} else {
/*
* The argument was not found in the fstab
* assume that this is a subtree and search for it
*/
dt = fstabsearchdir(pathname, directory);
if (dt != NULL) {
char name[MAXPATHLEN];
(void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
(void)snprintf(name, sizeof(name), "%s (dir %s)",
dt->mnt_dir, directory);
(void)strncpy(spcl.c_filesys, name, NAMELEN);
disk = rawname(dt->mnt_fsname);
} else {
(void)strncpy(spcl.c_dev, disk, NAMELEN);
(void)strncpy(spcl.c_filesys, "an unlisted file system",
NAMELEN);
}
}
#else
(void)strncpy(spcl.c_dev, disk, NAMELEN);
(void)strncpy(spcl.c_filesys, "an unlisted file system",
NAMELEN);
#endif
}
if (directory[0] != 0) {
if (atoi(level) != 0) {
msg("Only level 0 dumps are allowed on a subdirectory\n");
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
if (uflag) {
msg("You can't update the dumpdates file when dumping a subdirectory\n");
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
}
spcl.c_dev[NAMELEN-1] = '\0';
spcl.c_filesys[NAMELEN-1] = '\0';
(void)gethostname(spcl.c_host, NAMELEN);
spcl.c_host[NAMELEN-1] = '\0';
spcl.c_level = atoi(level);
spcl.c_type = TS_TAPE;
if (!Tflag)
getdumptime(uflag); /* dumpdates snarfed */
if (spcl.c_ddate == 0 && spcl.c_level) {
msg("WARNING: There is no inferior level dump on this filesystem\n");
msg("WARNING: Assuming a level 0 dump by default\n");
level[0] = '0'; level[1] = '\0';
spcl.c_level = 0;
}
if (Mflag)
snprintf(tape, MAXPATHLEN, "%s%03d", tapeprefix, tapeno + 1);
else
strncpy(tape, tapeprefix, MAXPATHLEN);
tape[MAXPATHLEN - 1] = '\0';
if (!pipeout) {
if (STAT(tape, &statbuf) != -1)
fifoout= statbuf.st_mode & S_IFIFO;
}
if (!sizest) {
msg("Date of this level %s dump: %s", level,
ctime4(&spcl.c_date));
#ifdef USE_QFA
gThisDumpDate = spcl.c_date;
#endif
if (spcl.c_ddate)
msg("Date of last level %s dump: %s", lastlevel,
ctime4(&spcl.c_ddate));
msg("Dumping %s (%s) ", disk, spcl.c_filesys);
if (host)
msgtail("to %s on host %s\n", tape, host);
else
msgtail("to %s\n", tape);
} /* end of size estimate */
#ifdef __linux__
if ((diskfd = OPEN(disk, O_RDONLY)) < 0) {
msg("Cannot open %s\n", disk);
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
#ifdef BLKFLSBUF
(void)ioctl(diskfd, BLKFLSBUF, 0);
#endif
retval = dump_fs_open(disk, &fs);
if (retval) {
com_err(disk, retval, "while opening filesystem");
if (retval == EXT2_ET_REV_TOO_HIGH)
msg("Get a newer version of dump!\n");
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
if (fs->super->s_rev_level > DUMP_CURRENT_REV) {
com_err(disk, retval, "while opening filesystem");
msg("Get a newer version of dump!\n");
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
/* if no user label specified, use ext2 filesystem label if available */
if (spcl.c_label[0] == '\0') {
const char *lbl;
if ( (lbl = get_device_label(disk)) != NULL) {
strncpy(spcl.c_label, lbl, LBLSIZE);
spcl.c_label[LBLSIZE-1] = '\0';
}
else
strcpy(spcl.c_label, "none"); /* safe strcpy. */
}
sync();
dev_bsize = DEV_BSIZE;
dev_bshift = ffs(dev_bsize) - 1;
if (dev_bsize != (1 << dev_bshift))
quit("dev_bsize (%d) 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 = fs->super->s_inodes_count + 1;
spcl.c_flags |= DR_NEWINODEFMT;
#else /* __linux __*/
if ((diskfd = open(disk, O_RDONLY)) < 0) {
msg("Cannot open %s\n", disk);
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
sync();
sblock = (struct fs *)sblock_buf;
bread(SBOFF, (char *) sblock, SBSIZE);
if (sblock->fs_magic != FS_MAGIC)
quit("bad sblock magic number\n");
dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
dev_bshift = ffs(dev_bsize) - 1;
if (dev_bsize != (1 << dev_bshift))
quit("dev_bsize (%d) 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);
#ifdef FS_44INODEFMT
if (sblock->fs_inodefmt >= FS_44INODEFMT)
spcl.c_flags |= DR_NEWINODEFMT;
#endif
maxino = sblock->fs_ipg * sblock->fs_ncg;
#endif /* __linux__ */
mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
metainomap = (char *)calloc((unsigned) mapsize, sizeof(char));
if (usedinomap == NULL || dumpdirmap == NULL ||
dumpinomap == NULL || metainomap == NULL)
quit("out of memory allocating inode maps\n");
tapesize = 2 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
nonodump = spcl.c_level < honorlevel;
if (!sizest) {
msg("Label: %s\n", spcl.c_label);
msg("Writing %d Kilobyte records\n", ntrec);
if (compressed) {
if (zipflag == COMPRESS_LZO)
msg("Compressing output (lzo)\n");
else
msg("Compressing output at compression level %d (%s)\n",
compressed, zipflag == COMPRESS_ZLIB ? "zlib" : "bzlib");
}
}
#if defined(SIGINFO)
(void)signal(SIGINFO, statussig);
#endif
if (!sizest)
msg("mapping (Pass I) [regular files]\n");
#ifdef __linux__
if (directory[0] == 0)
anydirskipped = mapfiles(maxino, &tapesize);
else {
if (LSTAT(pathname, &statbuf) == -1) {
msg("File cannot be accessed (%s).\n", pathname);
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
filedev = statbuf.st_dev;
if (!(statbuf.st_mode & S_IFDIR)) /* is a file */
anydirskipped = maponefile(maxino, &tapesize,
directory);
else
anydirskipped = mapfilesfromdir(maxino, &tapesize,
directory);
}
while (argc--) {
int anydirskipped2;
char *p = *argv;
/* check if file is available */
if (LSTAT(p, &statbuf) == -1) {
msg("File cannot be accessed (%s).\n", p);
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
/* check if file is on same unix partiton as the first
* argument */
if (statbuf.st_dev != filedev) {
msg("Files are not on same file system (%s).\n", p);
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
/* check if file is a directory */
if (!(statbuf.st_mode & S_IFDIR))
anydirskipped2 = maponefile(maxino, &tapesize,
p+strlen(dt->mnt_dir));
else
/* read directory inodes.
* NOTE: nested directories are not recognized
* so inodes may be umped twice!
*/
anydirskipped2 = mapfilesfromdir(maxino, &tapesize,
p+strlen(dt->mnt_dir));
if (!anydirskipped)
anydirskipped = anydirskipped2;
argv++;
}
#else
anydirskipped = mapfiles(maxino, &tapesize);
#endif
if (!sizest)
msg("mapping (Pass II) [directories]\n");
while (anydirskipped) {
anydirskipped = mapdirs(maxino, &tapesize);
}
if (sizest) {
printf("%.0f\n", ((double)tapesize + 1 + ntrec) * TP_BSIZE);
exit(X_FINOK);
} /* stop here for size estimate */
if (pipeout || unlimited) {
tapesize += 1 + ntrec; /* 1 map header + trailer blocks */
msg("estimated %ld blocks.\n", tapesize);
} else {
double fetapes;
if (blocksperfiles) {
long tapesize_left;
tapesize_left = tapesize;
fetapes = 0;
for (i = 1; i < *blocksperfiles && tapesize_left; i++) {
fetapes++;
if (tapesize_left > blocksperfiles[i])
tapesize_left -= blocksperfiles[i];
else
tapesize_left = 0;
}
if (tapesize_left)
fetapes += (double)tapesize_left / blocksperfiles[*blocksperfiles];
} 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 + ntrec; /* headers + trailer blks */
msg("estimated %ld blocks on %3.2f tape(s).\n",
tapesize, fetapes);
}
#ifdef USE_QFA
if (tapepos) {
msg("writing QFA positions to %s\n", gTapeposfile);
if ((gTapeposfd = open(gTapeposfile,
O_WRONLY|O_CREAT|O_TRUNC,
S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP
| S_IROTH | S_IWOTH)) < 0)
quit("can't open tapeposfile\n");
/* print QFA-file header */
snprintf(gTps, sizeof(gTps), "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date);
gTps[sizeof(gTps) - 1] = '\0';
if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
quit("can't write tapeposfile\n");
sprintf(gTps, "ino\ttapeno\ttapepos\n");
if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
quit("can't write tapeposfile\n");
}
#endif /* USE_QFA */
/*
* Allocate tape buffer.
*/
if (!alloctape())
quit(
"can't allocate tape buffers - try a smaller blocking factor.\n");
startnewtape(1);
tstart_writing = time(NULL);
dumpmap(usedinomap, TS_CLRI, maxino - 1);
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) % NBBY) == 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);
if ((dp->di_mode & IFMT) != IFDIR)
continue;
#ifdef __linux__
/*
* Skip directory inodes deleted and not yes reallocated...
*/
if (dp->di_nlink == 0 || dp->di_dtime != 0)
continue;
if (vflag)
msg("dumping directory inode %lu\n", ino);
(void)dumpdirino(dp, ino);
#else
(void)dumpino(dp, ino);
#endif
}
msg("dumping (Pass IV) [regular files]\n");
for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
if (((ino - 1) % NBBY) == 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);
if ((dp->di_mode & IFMT) == IFDIR)
continue;
#ifdef __linux__
/*
* No need to check here for deleted and not yet reallocated
* inodes since this is done in dumpino().
*/
#endif
if (vflag) {
if (mflag && TSTINO(ino, metainomap))
msg("dumping regular inode %lu (meta only)\n", ino);
else
msg("dumping regular inode %lu\n", ino);
}
(void)dumpino(dp, ino, mflag && TSTINO(ino, metainomap));
}
tend_writing = time(NULL);
spcl.c_type = TS_END;
if (Afile >= 0) {
volinfo[1] = ROOTINO;
memcpy(spcl.c_inos, volinfo, TP_NINOS * sizeof(dump_ino_t));
spcl.c_flags |= DR_INODEINFO;
}
/*
* Finish off the current tape record with trailer blocks, to ensure
* at least the data in the last partial record makes it to tape.
* Also make sure we write at least 1 trailer block.
*/
for (i = ntrec - (spcl.c_tapea % ntrec); i; --i)
writeheader(maxino - 1);
tnow = trewind();
if (pipeout || fifoout)
msg("%ld blocks (%.2fMB)\n", spcl.c_tapea,
((double)spcl.c_tapea * TP_BSIZE / 1048576));
else
msg("%ld blocks (%.2fMB) on %d volume(s)\n",
spcl.c_tapea,
((double)spcl.c_tapea * TP_BSIZE / 1048576),
spcl.c_volume);
/* report dump performance, avoid division by zero */
if (tend_writing - tstart_writing == 0)
msg("finished in less than a second\n");
else
msg("finished in %d seconds, throughput %d kBytes/sec\n",
tend_writing - tstart_writing,
spcl.c_tapea / (tend_writing - tstart_writing));
putdumptime();
msg("Date of this level %s dump: %s", level,
spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
msg("Date this dump completed: %s", ctime(&tnow));
msg("Average transfer rate: %ld kB/s\n", xferrate / tapeno);
if (compressed) {
long tapekb = bytes_written / 1024;
double rate = .0005 + (double) spcl.c_tapea / tapekb;
msg("Wrote %ldkB uncompressed, %ldkB compressed, %1.3f:1\n",
spcl.c_tapea, tapekb, rate);
}
if (Afile >= 0)
msg("Archiving dump to %s\n", Apath);
broadcast("DUMP IS DONE!\7\7\n");
msg("DUMP IS DONE\n");
Exit(X_FINOK);
/* NOTREACHED */
return 0; /* gcc - shut up */
}
static void
usage(void)
{
char white[MAXPATHLEN];
const char *ext2ver, *ext2date;
memset(white, ' ', MAXPATHLEN);
white[MIN(strlen(__progname), MAXPATHLEN - 1)] = '\0';
#ifdef __linux__
ext2fs_get_library_version(&ext2ver, &ext2date);
fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
__progname, _DUMP_VERSION, ext2ver, ext2date);
#else
fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
#endif
fprintf(stderr,
"usage:\t%s [-level#] [-ac"
#ifdef KERBEROS
"k"
#endif
"mMnqSuv"
"] [-A file] [-B records] [-b blocksize]\n"
"\t%s [-d density] [-D file] [-e inode#,inode#,...] [-E file]\n"
"\t%s [-f file] [-h level] [-I nr errors] "
#ifdef HAVE_BZLIB
"[-j zlevel] "
#endif
#ifdef USE_QFA
"[-Q file]\n"
#endif
"\t%s [-s feet] "
"[-T date] "
#ifdef HAVE_LZO
"[-y] "
#endif
#ifdef HAVE_ZLIB
"[-z zlevel] "
#endif
"filesystem\n"
"\t%s [-W | -w]\n",
__progname, white, white, white, __progname);
exit(X_STARTUP);
}
/*
* Pick up a numeric argument. It must be nonnegative and in the given
* range (except that a vmax of 0 means unlimited).
*/
static long
numarg(const char *meaning, long vmin, long vmax)
{
char *p;
long val;
val = strtol(optarg, &p, 10);
if (*p)
errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
if (val < vmin || (vmax && val > vmax))
errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
return (val);
}
/*
* The same as numarg, just that it expects a comma separated list of numbers
* and returns an array of longs with the first element containing the number
* values in that array.
*/
static long *
numlistarg(const char *meaning, long vmin, long vmax)
{
char *p;
long *vals,*curval;
long valnum;
p = optarg;
vals = NULL;
valnum = 0;
do {
valnum++;
if ( !(vals = realloc(vals, (valnum + 1) * sizeof(*vals))) )
errx(X_STARTUP, "allocating memory failed");
curval = vals + valnum;
*curval = strtol(p, &p, 10);
if (*p && *p!=',')
errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
if (*curval < vmin || (vmax && *curval > vmax))
errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
*vals = valnum;
if (*p) p++;
} while(*p);
return (vals);
}
void
sig(int signo)
{
switch(signo) {
case SIGALRM:
case SIGBUS:
case SIGFPE:
case SIGHUP:
case SIGTERM:
case SIGTRAP:
if (pipeout || fifoout)
quit("Signal on pipe: cannot recover\n");
msg("Rewriting attempted as response to unknown signal: %d.\n", signo);
(void)fflush(stderr);
(void)fflush(stdout);
close_rewind();
exit(X_REWRITE);
/* NOTREACHED */
case SIGSEGV:
msg("SIGSEGV: ABORTING!\n");
(void)signal(SIGSEGV, SIG_DFL);
(void)kill(0, SIGSEGV);
/* NOTREACHED */
}
}
const char *
rawname(const char *cp)
{
#ifdef __linux__
return cp;
#else /* __linux__ */
static char rawbuf[MAXPATHLEN];
char *dp = strrchr(cp, '/');
if (dp == NULL)
return (NULL);
(void)strncpy(rawbuf, cp, min(dp-cp, MAXPATHLEN - 1));
rawbuf[min(dp-cp, MAXPATHLEN-1)] = '\0';
(void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
(void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
return (rawbuf);
#endif /* __linux__ */
}
/*
* obsolete --
* Change set of key letters and ordered arguments into something
* getopt(3) will like.
*/
static void
obsolete(int *argcp, char **argvp[])
{
int argc, flags;
char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL;
/* Setup. */
argv = *argvp;
argc = *argcp;
/* Return if no arguments or first argument has leading dash. */
ap = argv[1];
if (argc == 1 || *ap == '-')
return;
/* Allocate space for new arguments. */
if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
(p = flagsp = malloc(strlen(ap) + 2)) == NULL)
err(X_STARTUP, "malloc new args");
*nargv++ = *argv;
argv += 2;
for (flags = 0; *ap; ++ap) {
switch (*ap) {
case 'A':
case 'B':
case 'b':
case 'd':
case 'D':
case 'e':
case 'E':
case 'f':
case 'F':
case 'h':
case 'L':
case 'Q':
case 's':
case 'T':
if (*argv == NULL) {
warnx("option requires an argument -- %c", *ap);
usage();
}
if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
err(X_STARTUP, "malloc arg");
nargv[0][0] = '-';
nargv[0][1] = *ap;
(void)strcpy(&nargv[0][2], *argv);
++argv;
++nargv;
break;
default:
if (!flags) {
*p++ = '-';
flags = 1;
}
*p++ = *ap;
break;
}
}
/* Terminate flags. */
if (flags) {
*p = '\0';
*nargv++ = flagsp;
}
/* Copy remaining arguments. */
while ((*nargv++ = *argv++));
/* Update argument count. */
*argcp = nargv - *argvp - 1;
}
/*
* This tests whether an inode is in the exclude bitmap
*/
int
exclude_ino(dump_ino_t ino)
{
/* if the inode exclude bitmap exists and covers given inode */
if (iexclude_bitmap && iexclude_bitmap_bytes > ino / 8) {
/* then check this inode against it */
int idx = iexclude_bitmap[ino / 8];
if (idx & (1 << (ino % 8)))
return 1;
}
return 0;
}
/*
* This adds an inode to the exclusion bitmap if it isn't already there
*/
void
do_exclude_ino(dump_ino_t ino, const char *reason)
{
if (exclude_ino(ino))
return;
if (vflag) {
if (reason)
msg("Excluding inode %u (%s) from dump\n", ino, reason);
else
msg("Excluding inode %u from dump\n", ino);
}
/* check for enough mem; initialize */
if ((ino/8 + 1) > iexclude_bitmap_bytes) {
if (iexclude_bitmap_bytes == 0) {
unsigned int j;
iexclude_bitmap_bytes = 2 * (ino/8 + 1);
iexclude_bitmap = (char*) malloc(iexclude_bitmap_bytes);
if (iexclude_bitmap == NULL) {
msg("allocating memory failed\n");
exit(X_STARTUP);
}
for (j = 0; j < iexclude_bitmap_bytes; j++)
iexclude_bitmap[j] = 0;
}
else {
unsigned int oldsize = iexclude_bitmap_bytes;
iexclude_bitmap_bytes *=
(ino / 8 + 1) / iexclude_bitmap_bytes + 1;
iexclude_bitmap = (char*) realloc(iexclude_bitmap,
iexclude_bitmap_bytes);
if (iexclude_bitmap == NULL) {
msg("allocating memory failed\n");
exit(X_STARTUP);
}
for( ; oldsize < iexclude_bitmap_bytes; oldsize++)
iexclude_bitmap[oldsize] = 0;
}
}
iexclude_bitmap[ino / 8] |= 1 << (ino % 8);
}
static void
do_exclude_ino_str(char * ino) {
char *r;
unsigned long inod;
inod = strtoul(ino, &r, 10);
if (( *r != '\0' && !isspace(*r) ) || inod <= ROOTINO) {
msg("Invalid inode argument %s\n", ino);
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
do_exclude_ino(inod, NULL);
}
/*
* This reads a file containing one inode number per line and exclude them all
*/
static void
do_exclude_from_file(char *file) {
FILE *f;
char *p, fname[MAXPATHLEN];
if (!( f = fopen(file, "r")) ) {
msg("Cannot open file for reading: %s\n", file);
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
while (( p = fgets(fname, MAXPATHLEN, f))) {
if ( *p && *(p + strlen(p) - 1) == '\n' ) /* possible null string */
*(p + strlen(p) - 1) = '\0';
if ( !*p ) /* skip empty lines */
continue;
do_exclude_ino_str(p);
}
fclose(f);
}
static void incompat_flags(int cond, char flag1, char flag2) {
if (cond) {
msg("You cannot use the %c and %c flags together.\n",
flag1, flag2);
msg("The ENTIRE dump is aborted.\n");
exit(X_STARTUP);
}
}
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