/[psinib]/psinib.pl
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 1.13 by dpavlin, Sun Oct 12 17:44:21 2003 UTC revision 1.19 by dpavlin, Mon Oct 27 19:07:32 2003 UTC
# Line 24  use Filesys::SmbClient; Line 24  use Filesys::SmbClient;
24  use Fcntl qw(LOCK_EX LOCK_NB);  use Fcntl qw(LOCK_EX LOCK_NB);
25  use Digest::MD5;  use Digest::MD5;
26  use File::Basename;  use File::Basename;
27    use Getopt::Long;
28    
29  # configuration  # configuration
30  my $LOG_TIME_FMT = '%Y-%m-%d %H:%M:%S'; # strftime format for logfile  my $LOG_TIME_FMT = '%Y-%m-%d %H:%M:%S'; # strftime format for logfile
31  my $DIR_TIME_FMT = '%Y%m%d';            # strftime format for backup dir  my $DIR_TIME_FMT = '%Y%m%d';            # strftime format for backup dir
32    
33    # define timeout for ping
34    my $PING_TIMEOUT = 5;
35    
36  my $LOG = '/var/log/backup.log';        # add path here...  my $LOG = '/var/log/backup.log';        # add path here...
37  #$LOG = '/tmp/backup.log';  #$LOG = '/tmp/backup.log';
38    
# Line 58  my $c = 0; Line 62  my $c = 0;
62  # taint path: nmblookup should be there!  # taint path: nmblookup should be there!
63  $ENV{'PATH'} = "/usr/bin:/bin";  $ENV{'PATH'} = "/usr/bin:/bin";
64    
65    my $use_ping = 1;       # default: use syn tcp ping to verify that host is up
66    my $verbose = 1;        # default verbosity level
67    my $quiet = 0;
68    
69    my $result = GetOptions(
70            "ping!" => \$use_ping, "backupdest!" => \$BACKUP_DEST,
71            "verbose+" => \$verbose, "quiet+" => \$quiet,
72    );
73    
74    $verbose -= $quiet;
75    
76  my $mounts = shift @ARGV ||  my $mounts = shift @ARGV ||
77          'mountscript';          'mountscript';
78  #       die "usage: $0 mountscript";  #       die "usage: $0 mountscript";
# Line 65  my $mounts = shift @ARGV || Line 80  my $mounts = shift @ARGV ||
80    
81  my @in_backup;  # shares which are backeduped this run  my @in_backup;  # shares which are backeduped this run
82    
83  my $p = new Net::Ping->new("tcp", 2);  # init Net::Ping object
84  # ping will try tcp connect to netbios-ssn (139)  my $ping;
85  $p->{port_num} = getservbyname("netbios-ssn", "tcp");  if ($use_ping) {
86            $ping = new Net::Ping->new("syn", 2);
87            # ping will try tcp connect to netbios-ssn (139)
88            $ping->{port_num} = getservbyname("netbios-ssn", "tcp");
89    }
90    
91    # do syn ping to cifs port
92    sub host_up {
93            my $ping = shift || return;
94            my $host_ip = shift || xlog("host_up didn't get IP");
95            my $timeout = shift;
96            return 1 if (! $use_ping);
97    
98            $ping->ping($host_ip,$timeout);
99            my $return = 0;
100    
101            while (my ($host,$rtt,$ip) = $ping->ack) {
102                    xlog("","HOST: $host [$ip] ACKed in $rtt seconds");
103                    $return = 1 if ($ip eq $host_ip);
104            }
105            return $return;
106    }
107    
108  my $backup_ok = 0;  my $backup_ok = 0;
109    
# Line 114  while(<M>) { Line 150  while(<M>) {
150                  $real_bl=readlink($bl) || die "can't read link $bl: $!";                  $real_bl=readlink($bl) || die "can't read link $bl: $!";
151                  $real_bl="$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 "/");
152                  if (-l $bc && $real_bl eq $bc) {                  if (-l $bc && $real_bl eq $bc) {
153                          print "$share allready backuped...\n";                          xlog($share,"allready backuped...");
154                          $backup_ok++;                          $backup_ok++;
155                          next;                          next;
156                  }                  }
# Line 122  while(<M>) { Line 158  while(<M>) {
158          }          }
159    
160    
161          print "working on $share\n";          xlog($share,"working on $share...");
162    
163          # try to nmblookup IP          # try to nmblookup IP
164          $ip = get_ip($share) if (! $ip);          $ip = get_ip($share) if (! $ip);
165    
166          if ($ip) {          if ($ip) {
167                  xlog($share,"IP is $ip");                  xlog($share,"IP is $ip");
168                  if ($p->ping($ip)) {                  if (host_up($ping, $ip,$PING_TIMEOUT)) {
169                          if (snap_share($share,$user,$passwd,$workgroup)) {                          if (snap_share($share,$user,$passwd,$workgroup)) {
170                                  $backup_ok++;                                  $backup_ok++;
171                          }                          }
# Line 163  sub xlog { Line 199  sub xlog {
199          my $share = shift;          my $share = shift;
200          my $t = strftime $LOG_TIME_FMT, localtime;          my $t = strftime $LOG_TIME_FMT, localtime;
201          my $m = shift || '[no log entry]';          my $m = shift || '[no log entry]';
202          print STDERR $m,"\n";          my $l = shift;
203            $l = 1 if (! defined $l);       # default verbosity is 1
204            print STDERR $m,"\n" if ($verbose >= $l);
205          print L "$t $share\t$m\n";          print L "$t $share\t$m\n";
206  }  }
207    
208  # dump warn and dies into log  # dump warn and dies into log
209  BEGIN { $SIG{'__WARN__'} = sub { xlog('WARN',$_[0]) ; warn $_[0] } }  BEGIN { $SIG{'__WARN__'} = sub { xlog('WARN',$_[0],1) ; warn $_[0] } }
210  BEGIN { $SIG{'__DIE__'} = sub { xlog('DIE',$_[0]) ; die $_[0] } }  BEGIN { $SIG{'__DIE__'} = sub { xlog('DIE',$_[0],0) ; die $_[0] } }
211    
212    
213  # split share name to host, dir and currnet date dir  # split share name to host, dir and currnet date dir
# Line 182  sub share2host_dir { Line 220  sub share2host_dir {
220                  $dir =~ s/^_+//;                  $dir =~ s/^_+//;
221                  $dir =~ s/_+$//;                  $dir =~ s/_+$//;
222          } else {          } else {
223                  print "Can't parse share $share into host and directory!\n";                  xlog($share,"Can't parse share $share into host and directory!",1);
224                  return;                  return;
225          }          }
226          return ($host,$dir,strftime $DIR_TIME_FMT, localtime);          return ($host,$dir,strftime $DIR_TIME_FMT, localtime);
# Line 211  sub snap_share { Line 249  sub snap_share {
249          if (-l $bl) {          if (-l $bl) {
250                  $real_bl=readlink($bl) || die "can't read link $bl: $!";                  $real_bl=readlink($bl) || die "can't read link $bl: $!";
251                  $real_bl="$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 "/");
252          } else {                  if (! -e $real_bl) {
253                  print "no old backup, trying to find last backup, ";                          xlog($share,"latest link $bl -> $real_bl not valid, removing it");
254                            unlink $bl || die "can't remove link $bl: $!";
255                            undef $real_bl;
256                    }
257            }
258            if (! $real_bl) {
259                    xlog($share,"no old backup, trying to find last backup");
260                  if (opendir(BL_DIR, "$BACKUP_DEST/$host/$dir")) {                  if (opendir(BL_DIR, "$BACKUP_DEST/$host/$dir")) {
261                          my @bl_dirs = sort grep { !/^\./ && -d "$BACKUP_DEST/$host/$dir/$_" } readdir(BL_DIR);                          my @bl_dirs = sort grep { !/^\./ && -d "$BACKUP_DEST/$host/$dir/$_" } readdir(BL_DIR);
262                          closedir(BL_DIR);                          closedir(BL_DIR);
263                          $real_bl=pop @bl_dirs;                          $real_bl=pop @bl_dirs;
264                          print "using $real_bl as latest...\n";                          xlog($share,"using $real_bl as latest...");
265                          $real_bl="$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 "/");
266                          if ($real_bl eq $bc) {                          if ($real_bl eq $bc) {
267                                  xlog($share,"latest from today (possible partial backup)");                                  xlog($share,"latest from today (possible partial backup)");
# Line 225  sub snap_share { Line 269  sub snap_share {
269                                  $real_bl .= ".partial";                                  $real_bl .= ".partial";
270                          }                          }
271                  } else {                  } else {
272                          print "this is first run...\n";                          xlog($share,"this is first run...");
273                  }                  }
274          }          }
275    
276          if (-l $bc && $real_bl && $real_bl eq $bc) {          if (-l $bc && $real_bl && $real_bl eq $bc) {
277                  print "$share allready backuped...\n";                  xlog($share,"allready backuped...");
278                  return 1;                  return 1;
279          }          }
280    
# Line 238  sub snap_share { Line 282  sub snap_share {
282    
283          if (! -e "$BACKUP_DEST/$host") {          if (! -e "$BACKUP_DEST/$host") {
284                  mkdir "$BACKUP_DEST/$host" || die "can't make dir for host $host, $BACKUP_DEST/$host: $!";                  mkdir "$BACKUP_DEST/$host" || die "can't make dir for host $host, $BACKUP_DEST/$host: $!";
285                  print "created host directory $BACKUP_DEST/$host...\n";                  xlog($share,"created host directory $BACKUP_DEST/$host...");
286          }          }
287    
288          if (! -e "$BACKUP_DEST/$host/$dir") {          if (! -e "$BACKUP_DEST/$host/$dir") {
289                  mkdir "$BACKUP_DEST/$host/$dir" || die "can't make dir for share $share, $BACKUP_DEST/$host/$dir $!";                  mkdir "$BACKUP_DEST/$host/$dir" || die "can't make dir for share $share, $BACKUP_DEST/$host/$dir $!";
290                  print "created dir for share $share, $BACKUP_DEST/$host/$dir...\n";                  xlog($share,"created dir for this share $BACKUP_DEST/$host/$dir...");
291          }          }
292    
293          mkdir $bc || die "can't make dir for current backup $bc: $!";          mkdir $bc || die "can't make dir for current backup $bc: $!";
# Line 321  sub snap_share { Line 365  sub snap_share {
365                                  } elsif (-d $pf) {                                  } elsif (-d $pf) {
366                                          push @dirs,$pr;                                          push @dirs,$pr;
367                                  } else {                                  } else {
368                                          print STDERR "not file or directory: $pf\n";                                          xlog($share,"not file or directory: $pf",0);
369                                  }                                  }
370                          } else {                          } else {
371                                  print STDERR "ignored: $pr\n";                                  xlog($share,"ignored: $pr");
372                          }                          }
373                  }                  }
374          }          }
# Line 345  sub snap_share { Line 389  sub snap_share {
389                  my $pf = norm_dir($d,"smb:$share/");    # path full                  my $pf = norm_dir($d,"smb:$share/");    # path full
390                  my $D = $smb->opendir($pf);                  my $D = $smb->opendir($pf);
391                  if (! $D) {                  if (! $D) {
392                          xlog($share,"FATAL: $share [$pf]: $!");                          xlog($share,"FATAL: $share [$pf] as $param{username}/$param{workgroup}: $!",0);
393                          # remove failing dir                          # remove failing dir
394                          delete $smb_dirs[$di];                          delete $smb_dirs[$di];
395                          return 0;                       # failed                          return 0;                       # failed
# Line 368  sub snap_share { Line 412  sub snap_share {
412                                  } elsif ($item->[0] == main::SMBC_DIR) {                                  } elsif ($item->[0] == main::SMBC_DIR) {
413                                          push @smb_dirs,$pr;                                          push @smb_dirs,$pr;
414                                  } else {                                  } else {
415                                          print STDERR "not file or directory [",$item->[0],"]: $pf\n";                                          xlog($share,"not file or directory [".$item->[0]."]: $pf",0);
416                                  }                                  }
417                          } else {                          } else {
418                                  print STDERR "smb ignored: $pr\n";                                  xlog($share,"smb ignored: $pr");
419                          }                          }
420                  }                  }
421          }          }
# Line 553  psinib - Perl Snapshot Is Not Incrementa Line 597  psinib - Perl Snapshot Is Not Incrementa
597    
598  =head1 SYNOPSIS  =head1 SYNOPSIS
599    
600  ./psinib.pl  ./psinib.pl [OPTION]... [mount script]
601    
602  =head1 DESCRIPTION  =head1 DESCRIPTION
603    
604    Option can be one of more of following:
605    
606    =over 8
607    
608    =item C<--backupdest=dir>
609    
610    Specify backup destination directory (defaults is /data/
611    
612    =item C<--noping>
613    
614    Don't use ping to check if host is up (default is ti use tcp syn to cifs
615    port)
616    
617    =item C<--verbose -v>
618    
619    Increase verbosity level. Defailt is 1 which prints moderate amount of data
620    on STDOUT and STDERR.
621    
622    =item C<--quiet -q>
623    
624    Decrease verbosity level
625    
626    =back
627    
628  This script in current version support just backup of Samba (or Micro$oft  This script in current version support just backup of Samba (or Micro$oft
629  Winblowz) shares to central disk space. Central disk space is organized in  Winblowz) shares to central disk space. Central disk space is organized in
630  multiple directories named after:  multiple directories named after:
# Line 668  be renamed to I<YYYYMMDD.partial> and sn Line 736  be renamed to I<YYYYMMDD.partial> and sn
736  linking same files (other alternative would be to erase that dir and find  linking same files (other alternative would be to erase that dir and find
737  second-oldest directory, but this seemed like more correct approach).  second-oldest directory, but this seemed like more correct approach).
738    
739    =head2 I can't connect to any share
740    
741    Please verify that nmblookup (which is part of samba package) is in /bin or
742    /usr/bin. Also verify that nmblookup returns IP address for your server
743    using:
744    
745       $ nmblookup tvhouse
746       querying tvhouse on 192.168.34.255
747       192.168.34.30 tvhouse<00>
748    
749    If you don't get any output, your samba might not listen to correct interface
750    (see interfaces in smb.conf).
751    
752  =head1 AUTHOR  =head1 AUTHOR
753    
754  Dobrica Pavlinusic <dpavlin@rot13.org>  Dobrica Pavlinusic <dpavlin@rot13.org>
755    
756  L<http://www.rot13.org/~dpavlin/>  L<http:E<sol>E<sol>www.rot13.orgE<sol>~dpavlinE<sol>>
757    
758  =head1 LICENSE  =head1 LICENSE
759    
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