gosa-si/modules/ArpHandler.pm

   1 package ArpHandler;
   2
   3 use Exporter;
   4 @ISA = ("Exporter");
   5
   6 use strict;
   7 use warnings;
   8 use GOSA::GosaSupportDaemon;
   9 use POSIX;
  10 use Fcntl;
  11 use Net::LDAP;
  12 use Net::LDAP::LDIF;
  13 use Net::LDAP::Entry;
  14 use Net::DNS;
  15 use Switch;
  16 use Data::Dumper;
  17
  18 # Don't start if some of the modules are missing
  19 my $start_service=1;
  20 my $lookup_vendor=1;
  21 BEGIN{
  22         unless(eval('use Socket qw(PF_INET SOCK_DGRAM inet_ntoa sockaddr_in)')) {
  23                 $start_service=0;
  24         }
  25         unless(eval('use POE qw(Component::Pcap Component::ArpWatch)')) {
  26                 $start_service=0;
  27         }
  28         unless(eval('use Net::MAC::Vendor')) {
  29                 $lookup_vendor=0;
  30         }
  31 }
  32
  33 END{}
  34
  35 my ($timeout, $mailto, $mailfrom, $user, $group);
  36 my ($arp_enabled, $arp_interface, $ldap_uri, $ldap_base, $ldap_admin_dn, $ldap_admin_password);
  37 my $hosts_database={};
  38 my $resolver=Net::DNS::Resolver->new;
  39 my $ldap;
  40
  41 my %cfg_defaults =
  42 (
  43         "ArpHandler" => {
  44                 "enabled"           => [\$arp_enabled,         "true"],
  45                 "interface"       => [\$arp_interface,    "all"],
  46         },
  47         "server" => {
  48                 "ldap-uri"            => [\$ldap_uri,            ""],
  49                 "ldap-base"           => [\$ldap_base,           ""],
  50                 "ldap-admin-dn"       => [\$ldap_admin_dn,       ""],
  51                 "ldap-admin-password" => [\$ldap_admin_password, ""],
  52         },
  53 );
  54
  55 #===  FUNCTION  ================================================================
  56 #         NAME:  read_configfile
  57 #   PARAMETERS:  cfg_file - string -
  58 #      RETURNS:  nothing
  59 #  DESCRIPTION:  read cfg_file and set variables
  60 #===============================================================================
  61 sub read_configfile {
  62         my $cfg;
  63         if( defined( $main::cfg_file) && ( length($main::cfg_file) > 0 )) {
  64                 if( -r $main::cfg_file ) {
  65                         $cfg = Config::IniFiles->new( -file => $main::cfg_file );
  66                 } else {
  67                         print STDERR "Couldn't read config file!";
  68                 }
  69         } else {
  70                 $cfg = Config::IniFiles->new() ;
  71         }
  72         foreach my $section (keys %cfg_defaults) {
  73                 foreach my $param (keys %{$cfg_defaults{ $section }}) {
  74                         my $pinfo = $cfg_defaults{ $section }{ $param };
  75                         ${@$pinfo[0]} = $cfg->val( $section, $param, @$pinfo[1] );
  76                 }
  77         }
  78 }
  79
  80 sub get_module_info {
  81         my @info = (undef,
  82                 undef,
  83         );
  84
  85         &read_configfile();
  86         # Don't start if some of the modules are missing
  87         if(($arp_enabled eq 'true') && $start_service) {
  88                 if($lookup_vendor) {
  89                         eval("Net::MAC::Vendor::load_cache('file:///usr/lib/gosa-si/modules/oui.txt')");
  90                         if($@) {
  91                                 &main::daemon_log("Loading OUI cache file failed! MAC Vendor lookup disabled", 1);
  92                                 $lookup_vendor=0;
  93                         } else {
  94                                 &main::daemon_log("Loading OUI cache file suceeded!", 6);
  95                         }
  96                 }
  97                 if(defined($ldap_uri) && length($ldap_uri)>0) {
  98                         $ldap = Net::LDAP->new($ldap_uri);
  99                         if (!$ldap) {
 100                                 &main::daemon_log("Could not connect to LDAP Server at $ldap_uri!\n$@", 1);
 101                         } else {
 102                                 $ldap->bind($ldap_admin_dn, password => $ldap_admin_password);
 103                         }
 104                 } else {
 105                         $ldap=undef;
 106                 }
 107
 108                 # When interface is not configured (or 'all'), start arpwatch on all possible interfaces
 109                 if ((!defined($arp_interface)) || $arp_interface eq 'all') {
 110                         foreach my $device(&get_interfaces) {
 111                                 # TODO: Need a better workaround for IPv4-to-IPv6 bridges
 112                                 if($device =~ m/^sit\d+$/) {
 113                                         next;
 114                                 }
 115
 116                                 # If device has a valid mac address
 117                                 # TODO: Check if this should be the right way
 118                                 if(not(&get_mac($device) eq "00:00:00:00:00:00")) {
 119                                         &main::daemon_log("Starting ArpWatch on $device", 1);
 120                                         POE::Session->create(
 121                                                 inline_states => {
 122                                                         _start => sub {
 123                                                                 &start(@_,$device);
 124                                                         },
 125                                                         _stop => sub {
 126                                                                 $ldap->unbind if (defined($ldap));
 127                                                                 $ldap->disconnect if (defined($ldap));
 128                                                                 $_[KERNEL]->post( sprintf("arp_watch_$device") => 'shutdown' )
 129                                                         },
 130                                                         got_packet => \&got_packet,
 131                                                 },
 132                                         );
 133                                 }
 134                         }
 135                 } else {
 136                         foreach my $device(split(/[\s,]+/, $arp_interface)) {
 137                                 &main::daemon_log("Starting ArpWatch on $device", 1);
 138                                 POE::Session->create(
 139                                         inline_states => {
 140                                                 _start => sub {
 141                                                         &start(@_,$device);
 142                                                 },
 143                                                 _stop => sub {
 144                                                         $ldap->unbind if (defined($ldap));
 145                                                         $ldap->disconnect if (defined($ldap));
 146                                                         $_[KERNEL]->post( sprintf("arp_watch_$device") => 'shutdown' )
 147                                                 },
 148                                                 got_packet => \&got_packet,
 149                                         },
 150                                 );
 151                         }
 152                 }
 153         } else {
 154                 &main::daemon_log("ArpHandler disabled. Not starting any capture processes");
 155         }
 156         return \@info;
 157 }
 158
 159 sub process_incoming_msg {
 160         return 1;
 161 }
 162
 163 sub start {
 164         my $device = (exists($_[ARG0])?$_[ARG0]:'eth0');
 165         POE::Component::ArpWatch->spawn(
 166                 Alias => sprintf("arp_watch_$device"),
 167                 Device => $device,
 168                 Dispatch => 'got_packet',
 169                 Session => $_[SESSION],
 170         );
 171
 172         $_[KERNEL]->post( sprintf("arp_watch_$device") => 'run' );
 173 }
 174
 175 sub got_packet {
 176         my ($kernel, $heap, $sender, $packet) = @_[KERNEL, HEAP, SENDER, ARG0];
 177
 178         if(     $packet->{source_haddr} eq "00:00:00:00:00:00" ||
 179                 $packet->{source_haddr} eq "ff:ff:ff:ff:ff:ff" ||
 180                 $packet->{source_ipaddr} eq "0.0.0.0") {
 181                 return;
 182         }
 183
 184         my $capture_device = sprintf "%s", $kernel->alias_list($sender) =~ /^arp_watch_(.*)$/;
 185
 186         if(!exists($hosts_database->{$packet->{source_haddr}})) {
 187                 my $dnsresult= $resolver->search($packet->{source_ipaddr});
 188                 my $dnsname= (defined($dnsresult))?$dnsresult->{answer}[0]->{ptrdname}:$packet->{source_ipaddr};
 189                 my $ldap_result=&get_host_from_ldap($packet->{source_haddr});
 190                 if(exists($ldap_result->{dn})) {
 191                         $hosts_database->{$packet->{source_haddr}}=$ldap_result;
 192                         $hosts_database->{$packet->{source_haddr}}->{dnsname}= $dnsname;
 193                         if(!exists($ldap_result->{ipHostNumber})) {
 194                                 $hosts_database->{$packet->{source_haddr}}->{ipHostNumber}=$packet->{source_ipaddr};
 195                         } else {
 196                                 if(!($ldap_result->{ipHostNumber} eq $packet->{source_ipaddr})) {
 197                                         &main::daemon_log(
 198                                                 "Current IP Address ".$packet->{source_ipaddr}.
 199                                                 " of host ".$hosts_database->{$packet->{source_haddr}}->{dnsname}.
 200                                                 " differs from LDAP (".$ldap_result->{ipHostNumber}.")", 4);
 201                                 }
 202                         }
 203                         $hosts_database->{$packet->{source_haddr}}->{dnsname}=$dnsname;
 204                         &main::daemon_log("Host was found in LDAP as ".$ldap_result->{dn}, 8);
 205                 } else {
 206                         $hosts_database->{$packet->{source_haddr}}={
 207                                 macAddress => $packet->{source_haddr},
 208                                 ipHostNumber => $packet->{source_ipaddr},
 209                                 dnsname => $dnsname,
 210                                 cn => (($dnsname =~ /^(\d){1,3}\.(\d){1,3}\.(\d){1,3}\.(\d){1,3}/) ? $dnsname : sprintf "%s", $dnsname =~ /([^\.]+)\./),
 211                                 macVendor => (($lookup_vendor) ? &get_vendor_for_mac($packet->{source_haddr}) : "Unknown Vendor"),
 212                         };
 213                         &main::daemon_log("Host was not found in LDAP (".($hosts_database->{$packet->{source_haddr}}->{dnsname}).")",6);
 214                         &main::daemon_log(
 215                                 "New Host ".($hosts_database->{$packet->{source_haddr}}->{dnsname}).
 216                                 ": ".$hosts_database->{$packet->{source_haddr}}->{ipHostNumber}.
 217                                 "/".$hosts_database->{$packet->{source_haddr}}->{macAddress},4);
 218                         &add_ldap_entry(
 219                                 $ldap,
 220                                 $ldap_base,
 221                                 $hosts_database->{$packet->{source_haddr}}->{macAddress},
 222                                 'new-system',
 223                                 $hosts_database->{$packet->{source_haddr}}->{ipHostNumber},
 224                                 'interface',
 225                                 $hosts_database->{$packet->{source_haddr}}->{macVendor});
 226                 }
 227                 $hosts_database->{$packet->{source_haddr}}->{device}= $capture_device;
 228         } else {
 229                 if(!($hosts_database->{$packet->{source_haddr}}->{ipHostNumber} eq $packet->{source_ipaddr})) {
 230                         &main::daemon_log(
 231                                 "IP Address change of MAC ".$packet->{source_haddr}.
 232                                 ": ".$hosts_database->{$packet->{source_haddr}}->{ipHostNumber}.
 233                                 "->".$packet->{source_ipaddr}, 4);
 234                         $hosts_database->{$packet->{source_haddr}}->{ipHostNumber}= $packet->{source_ipaddr};
 235                         &change_ldap_entry(
 236                                 $ldap,
 237                                 $ldap_base,
 238                                 $hosts_database->{$packet->{source_haddr}}->{macAddress},
 239                                 'ip-changed',
 240                                 $hosts_database->{$packet->{source_haddr}}->{ipHostNumber},
 241                         );
 242
 243                 }
 244                 &main::daemon_log("Host already in cache (".($hosts_database->{$packet->{source_haddr}}->{device})."->".($hosts_database->{$packet->{source_haddr}}->{dnsname}).")",8);
 245         }
 246 }
 247
 248 sub get_host_from_ldap {
 249         my $mac=shift;
 250         my $result={};
 251
 252         if(defined($ldap)) {
 253                 my $ldap_result= &search_ldap_entry(
 254                         $ldap,
 255                         $ldap_base,
 256                         "(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))"
 257                 );
 258
 259                 if(defined($ldap_result) && $ldap_result->count==1) {
 260                         if(exists($ldap_result->{entries}[0]) &&
 261                                 exists($ldap_result->{entries}[0]->{asn}->{objectName}) &&
 262                                 exists($ldap_result->{entries}[0]->{asn}->{attributes})) {
 263
 264                                 for my $attribute(@{$ldap_result->{entries}[0]->{asn}->{attributes}}) {
 265                                         if($attribute->{type} eq 'cn') {
 266                                                 $result->{cn} = $attribute->{vals}[0];
 267                                         }
 268                                         if($attribute->{type} eq 'macAddress') {
 269                                                 $result->{macAddress} = $attribute->{vals}[0];
 270                                         }
 271                                         if($attribute->{type} eq 'dhcpHWAddress') {
 272                                                 $result->{dhcpHWAddress} = $attribute->{vals}[0];
 273                                         }
 274                                         if($attribute->{type} eq 'ipHostNumber') {
 275                                                 $result->{ipHostNumber} = $attribute->{vals}[0];
 276                                         }
 277                                 }
 278                         }
 279                         $result->{dn} = $ldap_result->{entries}[0]->{asn}->{objectName};
 280                 }
 281         }
 282
 283         return $result;
 284 }
 285
 286 #===  FUNCTION  ================================================================
 287 #         NAME:  get_interfaces
 288 #   PARAMETERS:  none
 289 #      RETURNS:  (list of interfaces)
 290 #  DESCRIPTION:  Uses proc fs (/proc/net/dev) to get list of interfaces.
 291 #===============================================================================
 292 sub get_interfaces {
 293         my @result;
 294         my $PROC_NET_DEV= ('/proc/net/dev');
 295
 296         open(PROC_NET_DEV, "<$PROC_NET_DEV")
 297                 or die "Could not open $PROC_NET_DEV";
 298
 299         my @ifs = <PROC_NET_DEV>;
 300
 301         close(PROC_NET_DEV);
 302
 303         # Eat first two line
 304         shift @ifs;
 305         shift @ifs;
 306
 307         chomp @ifs;
 308         foreach my $line(@ifs) {
 309                 my $if= (split /:/, $line)[0];
 310                 $if =~ s/^\s+//;
 311                 push @result, $if;
 312         }
 313
 314         return @result;
 315 }
 316
 317 #===  FUNCTION  ================================================================
 318 #         NAME:  get_mac
 319 #   PARAMETERS:  interface name (i.e. eth0)
 320 #      RETURNS:  (mac address)
 321 #  DESCRIPTION:  Uses ioctl to get mac address directly from system.
 322 #===============================================================================
 323 sub get_mac {
 324         my $ifreq= shift;
 325         my $result;
 326         if ($ifreq && length($ifreq) > 0) {
 327                 if($ifreq eq "all") {
 328                         $result = "00:00:00:00:00:00";
 329                 } else {
 330                         my $SIOCGIFHWADDR= 0x8927;     # man 2 ioctl_list
 331
 332                         socket SOCKET, PF_INET, SOCK_DGRAM, getprotobyname('ip')
 333                                 or die "socket: $!";
 334
 335                         if(ioctl SOCKET, $SIOCGIFHWADDR, $ifreq) {
 336                                 my ($if, $mac)= unpack 'h36 H12', $ifreq;
 337
 338                                 if (length($mac) > 0) {
 339                                         $mac=~ m/^([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])$/;
 340                                         $mac= sprintf("%s:%s:%s:%s:%s:%s", $1, $2, $3, $4, $5, $6);
 341                                         $result = $mac;
 342                                 }
 343                         }
 344                 }
 345         }
 346         return $result;
 347 }
 348
 349 sub get_vendor_for_mac {
 350         my $mac=shift;
 351         my $result="Unknown Vendor";
 352
 353         if(defined($mac)) {
 354                 my $vendor= Net::MAC::Vendor::fetch_oui_from_cache(Net::MAC::Vendor::normalize_mac($mac));
 355                 if(length($vendor) > 0) {
 356                         $result= @{$vendor}[0];
 357                 }
 358                 &main::daemon_log("Looking up Vendor for MAC ".$mac.": $result", 4);
 359         }
 360
 361         return $result;
 362 }
 363
 364 #===  FUNCTION  ================================================================
 365 #         NAME:  add_ldap_entry
 366 #      PURPOSE:  adds an element to ldap-tree
 367 #   PARAMETERS:
 368 #      RETURNS:  none
 369 #  DESCRIPTION:  ????
 370 #       THROWS:  no exceptions
 371 #     COMMENTS:  none
 372 #     SEE ALSO:  n/a/bin
 373 #===============================================================================
 374 sub add_ldap_entry {
 375         my ($ldap_tree, $ldap_base, $mac, $gotoSysStatus, $ip, $interface, $desc) = @_;
 376         if(defined($ldap_tree)) {
 377                 my $dn = "cn=".$hosts_database->{$mac}->{cn}.",ou=incoming,$ldap_base";
 378                 my $s_res = &search_ldap_entry($ldap_tree, $ldap_base, "(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))");
 379                 my $c_res = (defined($s_res))?$s_res->count:0;
 380                 if($c_res == 1) {
 381                         &main::daemon_log("WARNING: macAddress $mac already in LDAP", 1);
 382                         return;
 383                 } elsif($c_res > 0) {
 384                         &main::daemon_log("ERROR: macAddress $mac exists $c_res times in LDAP", 1);
 385                         return;
 386                 }
 387
 388                 # create LDAP entry
 389                 my $entry = Net::LDAP::Entry->new( $dn );
 390                 $entry->dn($dn);
 391                 $entry->add("objectClass" => "goHard");
 392                 $entry->add("cn" => $hosts_database->{$mac}->{cn});
 393                 $entry->add("macAddress" => $mac);
 394                 if(defined $gotoSysStatus) {$entry->add("gotoSysStatus" => $gotoSysStatus)}
 395                 if(defined $ip) {$entry->add("ipHostNumber" => $ip) }
 396                 #if(defined $interface) { }
 397                 if(defined $desc) {$entry->add("description" => $desc) }
 398
 399                 # submit entry to LDAP
 400                 my $result = $entry->update ($ldap_tree);
 401
 402                 # for $result->code constants please look at Net::LDAP::Constant
 403                 if($result->code == 68) {   # entry already exists
 404                         &main::daemon_log("WARNING: $dn ".$result->error, 3);
 405                 } elsif($result->code == 0) {   # everything went fine
 406                         &main::daemon_log("add entry $dn to ldap", 1);
 407                 } else {  # if any other error occur
 408                         &main::daemon_log("ERROR: $dn, ".$result->code.", ".$result->error, 1);
 409                 }
 410         } else {
 411                 &main::daemon_log("Not adding new Entry: LDAP disabled", 6);
 412         }
 413         return;
 414 }
 415
 416
 417 #===  FUNCTION  ================================================================
 418 #         NAME:  change_ldap_entry
 419 #      PURPOSE:  ????
 420 #   PARAMETERS:  ????
 421 #      RETURNS:  ????
 422 #  DESCRIPTION:  ????
 423 #       THROWS:  no exceptions
 424 #     COMMENTS:  none
 425 #     SEE ALSO:  n/a
 426 #===============================================================================
 427 sub change_ldap_entry {
 428         my ($ldap_tree, $ldap_base, $mac, $gotoSysStatus, $ip) = @_;
 429
 430         if(defined($ldap_tree)) {
 431                 # check if ldap_entry exists or not
 432                 my $s_res = &search_ldap_entry($ldap_tree, $ldap_base, "(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))");
 433                 my $c_res = (defined $s_res)?$s_res->count:0;
 434                 if($c_res == 0) {
 435                         &main::daemon_log("WARNING: macAddress $mac not in LDAP", 1);
 436                         return;
 437                 } elsif($c_res > 1) {
 438                         &main::daemon_log("ERROR: macAddress $mac exists $c_res times in LDAP", 1);
 439                         return;
 440                 }
 441
 442                 my $s_res_entry = $s_res->pop_entry();
 443                 my $dn = $s_res_entry->dn();
 444                 my $replace = {
 445                         'gotoSysStatus' => $gotoSysStatus,
 446                 };
 447                 if (defined($ip)) {
 448                         $replace->{'ipHostNumber'} = $ip;
 449                 }
 450                 my $result = $ldap->modify( $dn, replace => $replace );
 451
 452                 # for $result->code constants please look at Net::LDAP::Constant
 453                 if($result->code == 32) {   # entry doesnt exists
 454                         &add_ldap_entry($mac, $gotoSysStatus);
 455                 } elsif($result->code == 0) {   # everything went fine
 456                         &main::daemon_log("entry $dn changed successful", 1);
 457                 } else {  # if any other error occur
 458                         &main::daemon_log("ERROR: $dn, ".$result->code.", ".$result->error, 1);
 459                 }
 460         } else {
 461                 &main::daemon_log("Not changing Entry: LDAP disabled", 6);
 462         }
 463
 464         return;
 465 }
 466
 467 #===  FUNCTION  ================================================================
 468 #         NAME:  search_ldap_entry
 469 #      PURPOSE:  ????
 470 #   PARAMETERS:  [Net::LDAP] $ldap_tree - object of an ldap-tree
 471 #                string $sub_tree - dn of the subtree the search is performed
 472 #                string $search_string - either a string or a Net::LDAP::Filter object
 473 #      RETURNS:  [Net::LDAP::Search] $msg - result object of the performed search
 474 #  DESCRIPTION:  ????
 475 #       THROWS:  no exceptions
 476 #     COMMENTS:  none
 477 #     SEE ALSO:  n/a
 478 #===============================================================================
 479 sub search_ldap_entry {
 480         my ($ldap_tree, $sub_tree, $search_string) = @_;
 481         my $msg;
 482         if(defined($ldap_tree)) {
 483                 $msg = $ldap_tree->search( # perform a search
 484                         base   => $sub_tree,
 485                         filter => $search_string,
 486                 ) or &main::daemon_log("cannot perform search at ldap: $@", 1);
 487                 #if(defined $msg) {
 488         #    print $sub_tree."\t".$search_string."\t";
 489         #    print $msg->count."\n";
 490         #    foreach my $entry ($msg->entries) { $entry->dump; };
 491         #}
 492         }
 493         return $msg;
 494 }
 495 #        $ldap = Net::LDAP->new( "localhost" ) or die "$@";
 496 #        $ldap->bind($bind_phrase,
 497 #                    password => $password,
 498 #                    ) ;
 499 #
 500 #        switch($arp_sig) {
 501 #            case 0 {&change_ldap_entry($ldap, $ldap_base,
 502 #                                      $mac, "ip-changed",
 503 #                                      )}
 504 #            case 1 {&change_ldap_entry($ldap, $ldap_base,
 505 #                                      $mac, "mac-not-whitelisted",
 506 #                                      )}
 507 #            case 2 {&change_ldap_entry($ldap, $ldap_base,
 508 #                                      $mac, "mac-in-blacklist",
 509 #                                      )}
 510 #            case 3 {&add_ldap_entry($ldap, $ldap_base,
 511 #                                   $mac, "new-mac-address", $ip,
 512 #                                   $interface, $desc,
 513 #                                   )}
 514 #            case 4 {&change_ldap_entry($ldap, $ldap_base,
 515 #                                      $mac, "unauthorized-arp-request",
 516 #                                      )}
 517 #            case 5 {&change_ldap_entry($ldap, $ldap_base,
 518 #                                      $mac, "abusive-number-of-arp-requests",
 519 #                                      )}
 520 #            case 6 {&change_ldap_entry($ldap, $ldap_base,
 521 #                                      $mac, "ether-and-arp-mac-differs",
 522 #                                      )}
 523 #            case 7 {&change_ldap_entry($ldap, $ldap_base,
 524 #                                      $mac, "flood-detected",
 525 #                                      )}
 526 #            case 8 {&add_ldap_entry($ldap, $ldap_base,
 527 #                                   $mac, $ip, "new-system",
 528 #                                   )}
 529 #            case 9 {&change_ldap_entry($ldap, $ldap_base,
 530 #                                      $mac, "mac-changed",
 531 #                                      )}
 532 #        }
 533 #
 534 #
 535         # ldap search
 536 #        my $base_phrase = "dc=gonicus,dc=de";
 537 #        my $filter_phrase = "cn=keinesorge";
 538 #        my $attrs_phrase = "cn macAdress";
 539 #        my $msg_search = $ldap->search( base   => $base_phrase,
 540 #                                        filter => $filter_phrase,
 541 #                                        attrs => $attrs_phrase,
 542 #                                        );
 543 #        $msg_search->code && die $msg_search->error;
 544 #
 545 #        my @entries = $msg_search->entries;
 546 #        my $max = $msg_search->count;
 547 #        print "anzahl der entries: $max\n";
 548 #        my $i;
 549 #        for ( $i = 0 ; $i < $max ; $i++ ) {
 550 #            my $entry = $msg_search->entry ( $i );
 551 #            foreach my $attr ( $entry->attributes ) {
 552 #                if( not $attr eq "cn") {
 553 #                    next;
 554 #                }
 555 #                print join( "\n ", $attr, $entry->get_value( $attr ) ), "\n\n";
 556 #            }
 557 #        }
 558                 #
 559                 #        # ldap add
 560                 #
 561                 #
 562                 #        $ldap->unbind;
 563                 #        exit;
 564
 565 1;