33 |
#$LOG = '/tmp/backup.log'; |
#$LOG = '/tmp/backup.log'; |
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); |
279 |
my $di = 0; |
my $di = 0; |
280 |
while ($di <= $#dirs && $real_bl) { |
while ($di <= $#dirs && $real_bl) { |
281 |
my $d=$dirs[$di++]; |
my $d=$dirs[$di++]; |
282 |
opendir(DIR,"$bl/$d") || warn "opendir($bl/$d): $!\n"; |
opendir(DIR,"$real_bl/$d") || warn "opendir($real_bl/$d): $!\n"; |
283 |
|
|
284 |
# read .backupignore if exists |
# read .backupignore if exists |
285 |
if (-f "$bl/$d/.backupignore") { |
if (-f "$real_bl/$d/.backupignore") { |
286 |
open(I,"$bl/$d/.backupignore"); |
open(I,"$real_bl/$d/.backupignore"); |
287 |
while(<I>) { |
while(<I>) { |
288 |
chomp; |
chomp; |
289 |
push @ignore,norm_dir("$d/$_"); |
push @ignore,norm_dir("$d/$_"); |
290 |
} |
} |
291 |
close(I); |
close(I); |
292 |
print STDERR "ignore: ",join("|",@ignore),"\n"; |
#print STDERR "ignore: ",join("|",@ignore),"\n"; |
293 |
link "$bl/$d/.backupignore","$bc/$d/.backupignore" || |
link "$real_bl/$d/.backupignore","$bc/$d/.backupignore" || |
294 |
warn "can't copy $bl/$d/.backupignore to current backup dir: $!\n"; |
warn "can't copy $real_bl/$d/.backupignore to current backup dir: $!\n"; |
295 |
} |
} |
296 |
|
|
297 |
# read .md5sum if exists |
# read .md5sum if exists |
298 |
if (-f "$bl/$d/.md5sum") { |
if (-f "$real_bl/$d/.md5sum") { |
299 |
open(I,"$bl/$d/.md5sum"); |
open(I,"$real_bl/$d/.md5sum"); |
300 |
while(<I>) { |
while(<I>) { |
301 |
chomp; |
chomp; |
302 |
my ($md5,$f) = split(/\s+/,$_,2); |
my ($md5,$f) = split(/\s+/,$_,2); |
310 |
next if ($f eq '.'); |
next if ($f eq '.'); |
311 |
next if ($f eq '..'); |
next if ($f eq '..'); |
312 |
my $pr = norm_dir("$d/$f"); # path relative |
my $pr = norm_dir("$d/$f"); # path relative |
313 |
my $pf = norm_dir("$d/$f","$bl/"); # path full |
my $pf = norm_dir("$d/$f","$real_bl/"); # path full |
314 |
if (grep(/^\Q$pr\E$/,@ignore) == 0) { |
if (grep(/^\Q$pr\E$/,@ignore) == 0) { |
315 |
if (-f $pf) { |
if (-f $pf) { |
316 |
push @files,$pr; |
push @files,$pr; |
320 |
} elsif (-d $pf) { |
} elsif (-d $pf) { |
321 |
push @dirs,$pr; |
push @dirs,$pr; |
322 |
} else { |
} else { |
323 |
print STDERR "unknown type: $pf\n"; |
print STDERR "not file or directory: $pf\n"; |
324 |
} |
} |
325 |
} else { |
} else { |
326 |
print STDERR "ignored: $pr\n"; |
print STDERR "ignored: $pr\n"; |
328 |
} |
} |
329 |
} |
} |
330 |
|
|
331 |
xlog($share,($#files+1)." files and ".($#dirs+1)." dirs on local disk before backup"); |
# local dir always include / |
332 |
|
xlog($share,($#files+1)." files and ".($#dirs)." dirs on local disk before backup"); |
333 |
|
|
334 |
# read smb filesystem |
# read smb filesystem |
335 |
|
|
340 |
|
|
341 |
$di = 0; |
$di = 0; |
342 |
while ($di <= $#smb_dirs) { |
while ($di <= $#smb_dirs) { |
343 |
my $d=$smb_dirs[$di++]; |
my $d=$smb_dirs[$di]; |
344 |
my $pf = norm_dir($d,"smb:$share/"); # path full |
my $pf = norm_dir($d,"smb:$share/"); # path full |
345 |
my $D = $smb->opendir($pf) || warn "smb->opendir($pf): $!\n"; |
my $D = $smb->opendir($pf); |
346 |
|
if (! $D) { |
347 |
|
xlog($share,"FATAL: $share [$pf]: $!"); |
348 |
|
# remove failing dir |
349 |
|
delete $smb_dirs[$di]; |
350 |
|
return 0; # failed |
351 |
|
} |
352 |
|
$di++; |
353 |
|
|
354 |
my @clutter = $smb->readdir_struct($D); |
my @clutter = $smb->readdir_struct($D); |
355 |
foreach my $item (@clutter) { |
foreach my $item (@clutter) { |
367 |
} elsif ($item->[0] == main::SMBC_DIR) { |
} elsif ($item->[0] == main::SMBC_DIR) { |
368 |
push @smb_dirs,$pr; |
push @smb_dirs,$pr; |
369 |
} else { |
} else { |
370 |
print STDERR "unknown type: $pf\n"; |
print STDERR "not file or directory [",$item->[0],"]: $pf\n"; |
371 |
} |
} |
372 |
} else { |
} else { |
373 |
print STDERR "smb ignored: $pr\n"; |
print STDERR "smb ignored: $pr\n"; |
375 |
} |
} |
376 |
} |
} |
377 |
|
|
378 |
xlog($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"); |
379 |
|
|
380 |
# sync dirs |
# sync dirs |
381 |
my $lc = List::Compare->new(\@dirs, \@smb_dirs); |
my $lc = List::Compare->new(\@dirs, \@smb_dirs); |
407 |
|
|
408 |
foreach my $f (@_) { |
foreach my $f (@_) { |
409 |
#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; |
|
|
} |
|
|
|
|
410 |
my $md5 = Digest::MD5->new; |
my $md5 = Digest::MD5->new; |
411 |
|
|
412 |
my $fd = $smb->open("$from/$f"); |
my $fd = $smb->open("$from/$f"); |
413 |
if (! $fd) { |
if (! $fd) { |
414 |
print STDERR "can't open smb file $from/$f: $!\n"; |
xlog("WARNING","can't open smb file $from/$f: $!"); |
415 |
|
next; |
416 |
|
} |
417 |
|
|
418 |
|
if (! open(F,"> $to/$f")) { |
419 |
|
xlog("WARNING","can't open new file $to/$f: $!"); |
420 |
next; |
next; |
421 |
} |
} |
422 |
|
|
484 |
xlog($share,"$transfer bytes transfered..."); |
xlog($share,"$transfer bytes transfered..."); |
485 |
|
|
486 |
foreach (@ln_files) { |
foreach (@ln_files) { |
487 |
link "$bl/$_","$bc/$_" || warn "link $bl/$_ -> $bc/$_: $!\n"; |
link "$real_bl/$_","$bc/$_" || warn "link $real_bl/$_ -> $bc/$_: $!\n"; |
488 |
} |
} |
489 |
|
|
490 |
# remove files |
# remove files |
505 |
# create .md5sum |
# create .md5sum |
506 |
my $last_dir = ''; |
my $last_dir = ''; |
507 |
my $md5; |
my $md5; |
508 |
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) { |
509 |
my $dir = dirname($f); |
my $dir = dirname($f); |
510 |
my $file = basename($f); |
my $file = basename($f); |
511 |
print "$f -- $dir / $file<--\n"; |
#print "$f -- $dir / $file<--\n"; |
512 |
if ($dir ne $last_dir) { |
if ($dir ne $last_dir) { |
513 |
close($md5) if ($md5); |
close($md5) if ($md5); |
514 |
open($md5, ">> $bc/$dir/.md5sum") || warn "can't create $bc/$dir/.md5sum: $!"; |
open($md5, ">> $bc/$dir/.md5sum") || warn "can't create $bc/$dir/.md5sum: $!"; |
515 |
$last_dir = $dir; |
$last_dir = $dir; |
516 |
print STDERR "writing $last_dir/.md5sum\n"; |
#print STDERR "writing $last_dir/.md5sum\n"; |
517 |
} |
} |
518 |
print $md5 $file_md5{$f}," $file\n"; |
print $md5 $file_md5{$f}," $file\n"; |
519 |
} |
} |
520 |
close($md5); |
close($md5) if ($md5); |
521 |
|
|
522 |
# create leatest link |
# create leatest link |
523 |
# symlink $bc,$bl || warn "can't create latest symlink $bl -> $bc: $!\n"; |
#print "ln -s $bc $real_bl\n"; |
524 |
|
if (-l $bl) { |
525 |
|
unlink $bl || warn "can't remove old latest symlink $bl: $!\n"; |
526 |
|
} |
527 |
|
symlink $bc,$bl || warn "can't create latest symlink $bl -> $bc: $!\n"; |
528 |
|
|
529 |
|
# FIX: sanity check -- remove for speedup |
530 |
|
xlog($share,"failed to create latest symlink $bl -> $bc...") if (readlink($bl) ne $bc || ! -l $bl); |
531 |
|
|
532 |
xlog($share,"backup completed..."); |
xlog($share,"backup completed..."); |
|
} |
|
533 |
|
|
534 |
|
return 1; |
535 |
|
} |
536 |
__END__ |
__END__ |
537 |
#------------------------------------------------------------------------- |
#------------------------------------------------------------------------- |
538 |
|
|
650 |
|
|
651 |
I will leave that to you. I relay on GNU/Debian's C<logrotate> to do it for me. |
I will leave that to you. I relay on GNU/Debian's C<logrotate> to do it for me. |
652 |
|
|
653 |
|
=head2 What are I<YYYYMMDD.partial> directories? |
654 |
|
|
655 |
|
If there isn't I<latest> symlink in snapshot directory, it's preatty safe to |
656 |
|
assume that previous backup from that day failed. So, that directory will |
657 |
|
be renamed to I<YYYYMMDD.partial> and snapshot will be performed again, |
658 |
|
linking same files (other alternative would be to erase that dir and find |
659 |
|
second-oldest directory, but this seemed like more correct approach). |
660 |
|
|
661 |
=head1 AUTHOR |
=head1 AUTHOR |
662 |
|
|
663 |
Dobrica Pavlinusic <dpavlin@rot13.org> |
Dobrica Pavlinusic <dpavlin@rot13.org> |