34 |
|
|
35 |
# store backups in which directory |
# store backups in which directory |
36 |
my $BACKUP_DEST = '/backup/isis_backup'; |
my $BACKUP_DEST = '/backup/isis_backup'; |
37 |
|
#my $BACKUP_DEST = '/tmp/backup/'; |
38 |
|
|
39 |
# files to ignore in backup |
# files to ignore in backup |
40 |
my @ignore = ('.md5sum', '.backupignore', 'backupignore.txt'); |
my @ignore = ('.md5sum', '.backupignore', 'backupignore.txt'); |
51 |
sleep 1; |
sleep 1; |
52 |
redo if ++$c < 10; |
redo if ++$c < 10; |
53 |
# no response for 10 sec, bail out |
# no response for 10 sec, bail out |
54 |
print STDERR "can't take lock on $LOG -- another $0 running?\n"; |
xlog("ABORT","can't take lock on $LOG -- another $0 running?"); |
55 |
exit 1; |
exit 1; |
56 |
} |
} |
57 |
|
|
65 |
|
|
66 |
my @in_backup; # shares which are backeduped this run |
my @in_backup; # shares which are backeduped this run |
67 |
|
|
68 |
my $p = new Net::Ping->new(); |
my $p = new Net::Ping->new("tcp", 2); |
69 |
|
# ping will try tcp connect to netbios-ssn (139) |
70 |
|
$p->{port_num} = getservbyname("netbios-ssn", "tcp"); |
71 |
|
|
72 |
my $backup_ok = 0; |
my $backup_ok = 0; |
73 |
|
|
82 |
next if !/^\s*smbmount\s/; |
next if !/^\s*smbmount\s/; |
83 |
my (undef,$share,undef,$opt) = split(/\s+/,$_,4); |
my (undef,$share,undef,$opt) = split(/\s+/,$_,4); |
84 |
|
|
85 |
my ($user,$passwd,$workgroup); |
my ($user,$passwd,$workgroup,$ip); |
86 |
|
|
87 |
foreach (split(/,/,$opt)) { |
foreach (split(/,/,$opt)) { |
88 |
my ($n,$v) = split(/=/,$_,2); |
my ($n,$v) = split(/=/,$_,2); |
98 |
} |
} |
99 |
} elsif ($n =~ m#workgroup#i) { |
} elsif ($n =~ m#workgroup#i) { |
100 |
$workgroup = $v; |
$workgroup = $v; |
101 |
|
} elsif ($n =~ m#ip#i) { |
102 |
|
$ip = $v; |
103 |
} |
} |
104 |
} |
} |
105 |
|
|
110 |
my $bl = "$BACKUP_DEST/$host/$dir/latest"; # latest backup |
my $bl = "$BACKUP_DEST/$host/$dir/latest"; # latest backup |
111 |
my $bc = "$BACKUP_DEST/$host/$dir/$date_dir"; # current one |
my $bc = "$BACKUP_DEST/$host/$dir/$date_dir"; # current one |
112 |
my $real_bl; |
my $real_bl; |
113 |
if (-e $bl) { |
if (-l $bl) { |
114 |
$real_bl=readlink($bl) || die "can't read link $bl: $!"; |
$real_bl=readlink($bl) || die "can't read link $bl: $!"; |
115 |
$real_bl="$BACKUP_DEST/$host/$dir/$real_bl" if (substr($real_bl,0,1) ne "/"); |
$real_bl="$BACKUP_DEST/$host/$dir/$real_bl" if (substr($real_bl,0,1) ne "/"); |
116 |
if (-e $bc && $real_bl eq $bc) { |
if (-l $bc && $real_bl eq $bc) { |
117 |
print "$share allready backuped...\n"; |
print "$share allready backuped...\n"; |
118 |
$backup_ok++; |
$backup_ok++; |
119 |
next; |
next; |
124 |
|
|
125 |
print "working on $share\n"; |
print "working on $share\n"; |
126 |
|
|
127 |
|
# try to nmblookup IP |
128 |
my $ip = get_ip($share); |
$ip = get_ip($share) if (! $ip); |
129 |
|
|
130 |
if ($ip) { |
if ($ip) { |
131 |
xlog($share,"IP is $ip"); |
xlog($share,"IP is $ip"); |
132 |
if ($p->ping($ip)) { |
if ($p->ping($ip)) { |
133 |
snap_share($share,$user,$passwd,$workgroup); |
if (snap_share($share,$user,$passwd,$workgroup)) { |
134 |
$backup_ok++; |
$backup_ok++; |
135 |
|
} |
136 |
} |
} |
137 |
} |
} |
138 |
} |
} |
167 |
print L "$t $share\t$m\n"; |
print L "$t $share\t$m\n"; |
168 |
} |
} |
169 |
|
|
170 |
|
# dump warn and dies into log |
171 |
|
BEGIN { $SIG{'__WARN__'} = sub { xlog('WARN',$_[0]) ; warn $_[0] } } |
172 |
|
BEGIN { $SIG{'__DIE__'} = sub { xlog('DIE',$_[0]) ; die $_[0] } } |
173 |
|
|
174 |
|
|
175 |
# split share name to host, dir and currnet date dir |
# split share name to host, dir and currnet date dir |
176 |
sub share2host_dir { |
sub share2host_dir { |
196 |
|
|
197 |
my %param = ( debug => 0 ); |
my %param = ( debug => 0 ); |
198 |
|
|
199 |
$param{username} = shift; |
$param{username} = shift || warn "can't find username for share $share"; |
200 |
$param{password} = shift; |
$param{password} = shift || warn "can't find passwod for share $share"; |
201 |
$param{workgroup} = shift; |
$param{workgroup} = shift || warn "can't find workgroup for share $share"; |
202 |
|
|
203 |
my ($host,$dir,$date_dir) = share2host_dir($share); |
my ($host,$dir,$date_dir) = share2host_dir($share); |
204 |
|
|
208 |
my $bc = "$BACKUP_DEST/$host/$dir/$date_dir"; |
my $bc = "$BACKUP_DEST/$host/$dir/$date_dir"; |
209 |
|
|
210 |
my $real_bl; |
my $real_bl; |
211 |
if (-e $bl) { |
if (-l $bl) { |
212 |
$real_bl=readlink($bl) || die "can't read link $bl: $!"; |
$real_bl=readlink($bl) || die "can't read link $bl: $!"; |
213 |
$real_bl="$BACKUP_DEST/$host/$dir/$real_bl" if (substr($real_bl,0,1) ne "/"); |
$real_bl="$BACKUP_DEST/$host/$dir/$real_bl" if (substr($real_bl,0,1) ne "/"); |
214 |
} else { |
} else { |
215 |
print "no old backup, this is first run...\n"; |
print "no old backup, trying to find last backup, "; |
216 |
|
if (opendir(BL_DIR, "$BACKUP_DEST/$host/$dir")) { |
217 |
|
my @bl_dirs = sort grep { !/^\./ && -d "$BACKUP_DEST/$host/$dir/$_" } readdir(BL_DIR); |
218 |
|
closedir(BL_DIR); |
219 |
|
$real_bl=pop @bl_dirs; |
220 |
|
print "using $real_bl as latest...\n"; |
221 |
|
$real_bl="$BACKUP_DEST/$host/$dir/$real_bl" if (substr($real_bl,0,1) ne "/"); |
222 |
|
if ($real_bl eq $bc) { |
223 |
|
xlog($share,"latest from today (possible partial backup)"); |
224 |
|
rename $real_bl,$real_bl.".partial" || warn "can't reaname partial backup: $!"; |
225 |
|
$real_bl .= ".partial"; |
226 |
|
} |
227 |
|
} else { |
228 |
|
print "this is first run...\n"; |
229 |
|
} |
230 |
} |
} |
231 |
|
|
232 |
if (-e $bc && $real_bl && $real_bl eq $bc) { |
if (-l $bc && $real_bl && $real_bl eq $bc) { |
233 |
print "$share allready backuped...\n"; |
print "$share allready backuped...\n"; |
234 |
return; |
return 1; |
235 |
} |
} |
236 |
|
|
237 |
die "You should really create BACKUP_DEST [$BACKUP_DEST] by hand! " if (!-e $BACKUP_DEST); |
die "You should really create BACKUP_DEST [$BACKUP_DEST] by hand! " if (!-e $BACKUP_DEST); |
259 |
my %file_atime; |
my %file_atime; |
260 |
my %file_mtime; |
my %file_mtime; |
261 |
#my %file_md5; |
#my %file_md5; |
262 |
|
%file_md5 = (); |
263 |
|
|
264 |
my @smb_files; |
my @smb_files; |
265 |
my %smb_size; |
my %smb_size; |
280 |
my $di = 0; |
my $di = 0; |
281 |
while ($di <= $#dirs && $real_bl) { |
while ($di <= $#dirs && $real_bl) { |
282 |
my $d=$dirs[$di++]; |
my $d=$dirs[$di++]; |
283 |
opendir(DIR,"$bl/$d") || warn "opendir($bl/$d): $!\n"; |
opendir(DIR,"$real_bl/$d") || warn "opendir($real_bl/$d): $!\n"; |
284 |
|
|
285 |
# read .backupignore if exists |
# read .backupignore if exists |
286 |
if (-f "$bl/$d/.backupignore") { |
if (-f "$real_bl/$d/.backupignore") { |
287 |
open(I,"$bl/$d/.backupignore"); |
open(I,"$real_bl/$d/.backupignore"); |
288 |
while(<I>) { |
while(<I>) { |
289 |
chomp; |
chomp; |
290 |
push @ignore,norm_dir("$d/$_"); |
push @ignore,norm_dir("$d/$_"); |
291 |
} |
} |
292 |
close(I); |
close(I); |
293 |
print STDERR "ignore: ",join("|",@ignore),"\n"; |
#print STDERR "ignore: ",join("|",@ignore),"\n"; |
294 |
link "$bl/$d/.backupignore","$bc/$d/.backupignore" || |
link "$real_bl/$d/.backupignore","$bc/$d/.backupignore" || |
295 |
warn "can't copy $bl/$d/.backupignore to current backup dir: $!\n"; |
warn "can't copy $real_bl/$d/.backupignore to current backup dir: $!\n"; |
296 |
} |
} |
297 |
|
|
298 |
# read .md5sum if exists |
# read .md5sum if exists |
299 |
if (-f "$bl/$d/.md5sum") { |
if (-f "$real_bl/$d/.md5sum") { |
300 |
open(I,"$bl/$d/.md5sum"); |
open(I,"$real_bl/$d/.md5sum"); |
301 |
while(<I>) { |
while(<I>) { |
302 |
chomp; |
chomp; |
303 |
my ($md5,$f) = split(/\s+/,$_,2); |
my ($md5,$f) = split(/\s+/,$_,2); |
311 |
next if ($f eq '.'); |
next if ($f eq '.'); |
312 |
next if ($f eq '..'); |
next if ($f eq '..'); |
313 |
my $pr = norm_dir("$d/$f"); # path relative |
my $pr = norm_dir("$d/$f"); # path relative |
314 |
my $pf = norm_dir("$d/$f","$bl/"); # path full |
my $pf = norm_dir("$d/$f","$real_bl/"); # path full |
315 |
if (grep(/^\Q$pr\E$/,@ignore) == 0) { |
if (grep(/^\Q$pr\E$/,@ignore) == 0) { |
316 |
if (-f $pf) { |
if (-f $pf) { |
317 |
push @files,$pr; |
push @files,$pr; |
321 |
} elsif (-d $pf) { |
} elsif (-d $pf) { |
322 |
push @dirs,$pr; |
push @dirs,$pr; |
323 |
} else { |
} else { |
324 |
print STDERR "unknown type: $pf\n"; |
print STDERR "not file or directory: $pf\n"; |
325 |
} |
} |
326 |
} else { |
} else { |
327 |
print STDERR "ignored: $pr\n"; |
print STDERR "ignored: $pr\n"; |
329 |
} |
} |
330 |
} |
} |
331 |
|
|
332 |
xlog($share,($#files+1)." files and ".($#dirs+1)." dirs on local disk before backup"); |
# local dir always include / |
333 |
|
xlog($share,($#files+1)." files and ".($#dirs)." dirs on local disk before backup"); |
334 |
|
|
335 |
# read smb filesystem |
# read smb filesystem |
336 |
|
|
341 |
|
|
342 |
$di = 0; |
$di = 0; |
343 |
while ($di <= $#smb_dirs) { |
while ($di <= $#smb_dirs) { |
344 |
my $d=$smb_dirs[$di++]; |
my $d=$smb_dirs[$di]; |
345 |
my $pf = norm_dir($d,"smb:$share/"); # path full |
my $pf = norm_dir($d,"smb:$share/"); # path full |
346 |
my $D = $smb->opendir($pf) || warn "smb->opendir($pf): $!\n"; |
my $D = $smb->opendir($pf); |
347 |
|
if (! $D) { |
348 |
|
xlog($share,"FATAL: $share [$pf]: $!"); |
349 |
|
# remove failing dir |
350 |
|
delete $smb_dirs[$di]; |
351 |
|
return 0; # failed |
352 |
|
} |
353 |
|
$di++; |
354 |
|
|
355 |
my @clutter = $smb->readdir_struct($D); |
my @clutter = $smb->readdir_struct($D); |
356 |
foreach my $item (@clutter) { |
foreach my $item (@clutter) { |
368 |
} elsif ($item->[0] == main::SMBC_DIR) { |
} elsif ($item->[0] == main::SMBC_DIR) { |
369 |
push @smb_dirs,$pr; |
push @smb_dirs,$pr; |
370 |
} else { |
} else { |
371 |
print STDERR "unknown type: $pf\n"; |
print STDERR "not file or directory [",$item->[0],"]: $pf\n"; |
372 |
} |
} |
373 |
} else { |
} else { |
374 |
print STDERR "smb ignored: $pr\n"; |
print STDERR "smb ignored: $pr\n"; |
376 |
} |
} |
377 |
} |
} |
378 |
|
|
379 |
xlog($share,($#smb_files+1)." files and ".($#smb_dirs+1)." dirs on remote share"); |
xlog($share,($#smb_files+1)." files and ".($#smb_dirs)." dirs on remote share"); |
380 |
|
|
381 |
# sync dirs |
# sync dirs |
382 |
my $lc = List::Compare->new(\@dirs, \@smb_dirs); |
my $lc = List::Compare->new(\@dirs, \@smb_dirs); |
408 |
|
|
409 |
foreach my $f (@_) { |
foreach my $f (@_) { |
410 |
#print "smb_copy $from/$f -> $to/$f\n"; |
#print "smb_copy $from/$f -> $to/$f\n"; |
|
if (! open(F,"> $to/$f")) { |
|
|
print STDERR "can't open new file $to/$f: $!\n"; |
|
|
next; |
|
|
} |
|
|
|
|
411 |
my $md5 = Digest::MD5->new; |
my $md5 = Digest::MD5->new; |
412 |
|
|
413 |
my $fd = $smb->open("$from/$f"); |
my $fd = $smb->open("$from/$f"); |
414 |
if (! $fd) { |
if (! $fd) { |
415 |
print STDERR "can't open smb file $from/$f: $!\n"; |
xlog("WARNING","can't open smb file $from/$f: $!"); |
416 |
|
next; |
417 |
|
} |
418 |
|
|
419 |
|
if (! open(F,"> $to/$f")) { |
420 |
|
xlog("WARNING","can't open new file $to/$f: $!"); |
421 |
next; |
next; |
422 |
} |
} |
423 |
|
|
485 |
xlog($share,"$transfer bytes transfered..."); |
xlog($share,"$transfer bytes transfered..."); |
486 |
|
|
487 |
foreach (@ln_files) { |
foreach (@ln_files) { |
488 |
link "$bl/$_","$bc/$_" || warn "link $bl/$_ -> $bc/$_: $!\n"; |
link "$real_bl/$_","$bc/$_" || warn "link $real_bl/$_ -> $bc/$_: $!\n"; |
489 |
} |
} |
490 |
|
|
491 |
# remove files |
# remove files |
492 |
foreach (sort @files2erase) { |
foreach (sort @files2erase) { |
493 |
unlink "$bc/$_" || warn "unlink $_: $!\n"; |
unlink "$bc/$_" || warn "unlink $_: $!\n"; |
494 |
|
delete $file_md5{$_}; |
495 |
} |
} |
496 |
|
|
497 |
# remove not needed dirs (after files) |
# remove not needed dirs (after files) |
504 |
unlink "$bc/$_/.md5sum" if (-e "$bc/$_/.md5sum"); |
unlink "$bc/$_/.md5sum" if (-e "$bc/$_/.md5sum"); |
505 |
} |
} |
506 |
|
|
507 |
|
# erase stale entries in .md5sum |
508 |
|
my @md5_files = keys %file_md5; |
509 |
|
$lc = List::Compare->new(\@md5_files, \@smb_files); |
510 |
|
foreach my $file ($lc->get_Lonly) { |
511 |
|
xlog("NOTICE","removing stale '$file' from .md5sum"); |
512 |
|
delete $file_md5{$file}; |
513 |
|
} |
514 |
|
|
515 |
# create .md5sum |
# create .md5sum |
516 |
my $last_dir = ''; |
my $last_dir = ''; |
517 |
my $md5; |
my $md5; |
518 |
foreach my $f (sort { $file_md5{$a}<=>$file_md5{$b} } keys %file_md5) { |
foreach my $f (sort { $file_md5{$a} cmp $file_md5{$b} } keys %file_md5) { |
519 |
my $dir = dirname($f); |
my $dir = dirname($f); |
520 |
my $file = basename($f); |
my $file = basename($f); |
521 |
print "$f -- $dir / $file<--\n"; |
#print "$f -- $dir / $file<--\n"; |
522 |
if ($dir ne $last_dir) { |
if ($dir ne $last_dir) { |
523 |
close($md5) if ($md5); |
close($md5) if ($md5); |
524 |
open($md5, ">> $bc/$dir/.md5sum") || warn "can't create $bc/$dir/.md5sum: $!"; |
open($md5, ">> $bc/$dir/.md5sum") || warn "can't create $bc/$dir/.md5sum: $!"; |
525 |
$last_dir = $dir; |
$last_dir = $dir; |
526 |
print STDERR "writing $last_dir/.md5sum\n"; |
#print STDERR "writing $last_dir/.md5sum\n"; |
527 |
} |
} |
528 |
print $md5 $file_md5{$f}," $file\n"; |
print $md5 $file_md5{$f}," $file\n"; |
529 |
} |
} |
530 |
close($md5); |
close($md5) if ($md5); |
531 |
|
|
532 |
# create leatest link |
# create leatest link |
533 |
# symlink $bc,$bl || warn "can't create latest symlink $bl -> $bc: $!\n"; |
#print "ln -s $bc $real_bl\n"; |
534 |
|
if (-l $bl) { |
535 |
|
unlink $bl || warn "can't remove old latest symlink $bl: $!\n"; |
536 |
|
} |
537 |
|
symlink $bc,$bl || warn "can't create latest symlink $bl -> $bc: $!\n"; |
538 |
|
|
539 |
|
# FIX: sanity check -- remove for speedup |
540 |
|
xlog($share,"failed to create latest symlink $bl -> $bc...") if (readlink($bl) ne $bc || ! -l $bl); |
541 |
|
|
542 |
xlog($share,"backup completed..."); |
xlog($share,"backup completed..."); |
|
} |
|
543 |
|
|
544 |
|
return 1; |
545 |
|
} |
546 |
__END__ |
__END__ |
547 |
#------------------------------------------------------------------------- |
#------------------------------------------------------------------------- |
548 |
|
|
597 |
over network) |
over network) |
598 |
|
|
599 |
=item - usage of C<.md5sum> files (compatible with command-line utility |
=item - usage of C<.md5sum> files (compatible with command-line utility |
600 |
C<md5sum> to keep file between snapshots hard-linked |
C<md5sum>) to keep file between snapshots hard-linked |
601 |
|
|
602 |
=back |
=back |
603 |
|
|
641 |
|
|
642 |
server/c_WinNT_fonts/yyyymmdd/.... |
server/c_WinNT_fonts/yyyymmdd/.... |
643 |
|
|
644 |
|
=head2 Won't I run out of disk space? |
645 |
|
|
646 |
|
Of course you will... Snapshots and logfiles will eventually fill-up your disk. |
647 |
|
However, you can do two things to stop that: |
648 |
|
|
649 |
|
=head3 Clean snapshort older than x days |
650 |
|
|
651 |
|
You can add following command to your C<root> crontab: |
652 |
|
|
653 |
|
find /backup/isis_backup -type d -mindepth 3 -maxdepth 3 -mtime +11 -exec rm -Rf {} \; |
654 |
|
|
655 |
|
I assume that C</backup/isis_backup> is directory in which are your snapshots |
656 |
|
and that you don't want to keep snapshots older than 11 days (that's |
657 |
|
C<-mtime +11> part of command). |
658 |
|
|
659 |
|
=head3 Rotate your logs |
660 |
|
|
661 |
|
I will leave that to you. I relay on GNU/Debian's C<logrotate> to do it for me. |
662 |
|
|
663 |
|
=head2 What are I<YYYYMMDD.partial> directories? |
664 |
|
|
665 |
|
If there isn't I<latest> symlink in snapshot directory, it's preatty safe to |
666 |
|
assume that previous backup from that day failed. So, that directory will |
667 |
|
be renamed to I<YYYYMMDD.partial> and snapshot will be performed again, |
668 |
|
linking same files (other alternative would be to erase that dir and find |
669 |
|
second-oldest directory, but this seemed like more correct approach). |
670 |
|
|
671 |
=head1 AUTHOR |
=head1 AUTHOR |
672 |
|
|