gosa-si/modules/ClientPackages.pm

   1 package ClientPackages;
   2
   3 use Exporter;
   4 @ISA = ("Exporter");
   5
   6 # Each module has to have a function 'process_incoming_msg'. This function works as a interface to gosa-sd and receives the msg hash from gosa-sd. 'process_incoming_function checks, wether it has a function to process the incoming msg and forward the msg to it.
   7
   8 use strict;
   9 use warnings;
  10 use GOSA::GosaSupportDaemon;
  11 use IO::Socket::INET;
  12 use XML::Simple;
  13 use Data::Dumper;
  14 use NetAddr::IP;
  15 use Net::LDAP;
  16 use Net::LDAP::Util;
  17 use Socket;
  18 use Net::hostent;
  19
  20 my $event_dir = "/usr/lib/gosa-si/server/ClientPackages";
  21 use lib "/usr/lib/gosa-si/server/ClientPackages";
  22
  23 BEGIN{}
  24 END {}
  25
  26 my ($server_ip, $server_port, $ClientPackages_key, $max_clients, $ldap_uri, $ldap_base, $ldap_admin_dn, $ldap_admin_password, $server_interface);
  27 my $server;
  28 my $network_interface;
  29 my (@ldap_cfg, @pam_cfg, @nss_cfg, $goto_admin, $goto_secret);
  30 my $mesg;
  31
  32 my %cfg_defaults = (
  33 "server" => {
  34     "ip" => [\$server_ip, "0.0.0.0"],
  35     "mac-address" => [\$main::server_mac_address, "00:00:00:00:00"],
  36     "port" => [\$server_port, "20081"],
  37     "ldap-uri" => [\$ldap_uri, ""],
  38     "ldap-base" => [\$ldap_base, ""],
  39     "ldap-admin-dn" => [\$ldap_admin_dn, ""],
  40     "ldap-admin-password" => [\$ldap_admin_password, ""],
  41     "max-clients" => [\$max_clients, 100],
  42     },
  43 "ClientPackages" => {
  44     "key" => [\$ClientPackages_key, ""],
  45     },
  46 );
  47
  48 ### START #####################################################################
  49
  50 # read configfile and import variables
  51 &local_read_configfile();
  52
  53
  54 # if server_ip is not an ip address but a name
  55 if( inet_aton($server_ip) ){ $server_ip = inet_ntoa(inet_aton($server_ip)); }
  56 $network_interface= &get_interface_for_ip($server_ip);
  57 $main::server_mac_address= &get_mac($network_interface);
  58
  59
  60 # import local events
  61 my ($error, $result, $event_hash) = &import_events($event_dir);
  62
  63 foreach my $log_line (@$result) {
  64     if ($log_line =~ / succeed: /) {
  65         &main::daemon_log("0 DEBUG: ClientPackages - $log_line", 7);
  66     } else {
  67         &main::daemon_log("0 ERROR: ClientPackages - $log_line", 1);
  68     }
  69 }
  70 # build vice versa event_hash, event_name => module
  71 my $event2module_hash = {};
  72 while (my ($module, $mod_events) = each %$event_hash) {
  73     while (my ($event_name, $nothing) = each %$mod_events) {
  74         $event2module_hash->{$event_name} = $module;
  75     }
  76
  77 }
  78
  79 # Unit tag can be defined in config
  80 if((not defined($main::gosa_unit_tag)) || length($main::gosa_unit_tag) == 0) {
  81         # Read gosaUnitTag from LDAP
  82
  83     my $ldap_handle = &main::get_ldap_handle();
  84     if( defined($ldap_handle) ) {
  85                 &main::daemon_log("0 INFO: Searching for servers gosaUnitTag with mac address $main::server_mac_address",5);
  86                 # Perform search for Unit Tag
  87                 $mesg = $ldap_handle->search(
  88                         base   => $ldap_base,
  89                         scope  => 'sub',
  90                         attrs  => ['gosaUnitTag'],
  91                         filter => "(macaddress=$main::server_mac_address)"
  92                 );
  93
  94                 if ((! $main::server_mac_address eq "00:00:00:00:00:00") and $mesg->count == 1) {
  95                         my $entry= $mesg->entry(0);
  96                         my $unit_tag= $entry->get_value("gosaUnitTag");
  97                         $main::ldap_server_dn= $mesg->entry(0)->dn;
  98                         if(defined($unit_tag) && length($unit_tag) > 0) {
  99                                 &main::daemon_log("0 INFO: Detected gosaUnitTag $unit_tag for creating entries", 5);
 100                                 $main::gosa_unit_tag= $unit_tag;
 101                         }
 102                 } else {
 103                         # Perform another search for Unit Tag
 104                         my $hostname= `hostname -f`;
 105                         chomp($hostname);
 106                         &main::daemon_log("0 INFO: Searching for servers gosaUnitTag with hostname $hostname",5);
 107                         $mesg = $ldap_handle->search(
 108                                 base   => $ldap_base,
 109                                 scope  => 'sub',
 110                                 attrs  => ['gosaUnitTag'],
 111                                 filter => "(&(cn=$hostname)(objectClass=goServer))"
 112                         );
 113                         if ($mesg->count == 1) {
 114                                 my $entry= $mesg->entry(0);
 115                                 my $unit_tag= $entry->get_value("gosaUnitTag");
 116                                 $main::ldap_server_dn= $mesg->entry(0)->dn;
 117                                 if(defined($unit_tag) && length($unit_tag) > 0) {
 118                                         &main::daemon_log("0 INFO: Detected gosaUnitTag $unit_tag for creating entries", 5);
 119                                         $main::gosa_unit_tag= $unit_tag;
 120                                 }
 121                         } else {
 122                                 # Perform another search for Unit Tag
 123                                 $hostname= `hostname -s`;
 124                                 chomp($hostname);
 125                                 &main::daemon_log("0 INFO: Searching for servers gosaUnitTag with hostname $hostname",5);
 126                                 $mesg = $ldap_handle->search(
 127                                         base   => $ldap_base,
 128                                         scope  => 'sub',
 129                                         attrs  => ['gosaUnitTag'],
 130                                         filter => "(&(cn=$hostname)(objectClass=goServer))"
 131                                 );
 132                                 if ($mesg->count == 1) {
 133                                         my $entry= $mesg->entry(0);
 134                                         my $unit_tag= $entry->get_value("gosaUnitTag");
 135                                         $main::ldap_server_dn= $mesg->entry(0)->dn;
 136                                         if(defined($unit_tag) && length($unit_tag) > 0) {
 137                                                 &main::daemon_log("INFO: Detected gosaUnitTag $unit_tag for creating entries", 5);
 138                                                 $main::gosa_unit_tag= $unit_tag;
 139                                         }
 140                                 } else {
 141                                         &main::daemon_log("0 WARNING: No gosaUnitTag detected. Not using gosaUnitTag", 3);
 142                                 }
 143                         }
 144                 }
 145         } else {
 146                 &main::daemon_log("0 INFO: Using gosaUnitTag from config-file: $main::gosa_unit_tag",5);
 147         }
 148     &main::release_ldap_handle($ldap_handle);
 149 }
 150
 151
 152 my $server_address = "$server_ip:$server_port";
 153 $main::server_address = $server_address;
 154
 155
 156 ### functions #################################################################
 157
 158
 159 sub get_module_info {
 160     my @info = ($server_address,
 161                 $ClientPackages_key,
 162                 $event_hash,
 163                 );
 164     return \@info;
 165 }
 166
 167
 168 #===  FUNCTION  ================================================================
 169 #         NAME:  local_read_configfile
 170 #   PARAMETERS:  cfg_file - string -
 171 #      RETURNS:  nothing
 172 #  DESCRIPTION:  read cfg_file and set variables
 173 #===============================================================================
 174 sub local_read_configfile {
 175     my $cfg;
 176     if( defined( $main::cfg_file) && ( (-s $main::cfg_file) > 0 )) {
 177         if( -r $main::cfg_file ) {
 178             $cfg = Config::IniFiles->new( -file => $main::cfg_file );
 179         } else {
 180             print STDERR "Couldn't read config file!";
 181         }
 182     } else {
 183         $cfg = Config::IniFiles->new() ;
 184     }
 185     foreach my $section (keys %cfg_defaults) {
 186         foreach my $param (keys %{$cfg_defaults{ $section }}) {
 187             my $pinfo = $cfg_defaults{ $section }{ $param };
 188             ${@$pinfo[0]} = $cfg->val( $section, $param, @$pinfo[1] );
 189         }
 190     }
 191
 192     # Read non predefined sections
 193     my $param;
 194     if ($cfg->SectionExists('ldap')){
 195                 foreach $param ($cfg->Parameters('ldap')){
 196                         push (@ldap_cfg, "$param ".$cfg->val('ldap', $param));
 197                 }
 198     }
 199     if ($cfg->SectionExists('pam_ldap')){
 200                 foreach $param ($cfg->Parameters('pam_ldap')){
 201                         push (@pam_cfg, "$param ".$cfg->val('pam_ldap', $param));
 202                 }
 203     }
 204     if ($cfg->SectionExists('nss_ldap')){
 205                 foreach $param ($cfg->Parameters('nss_ldap')){
 206                         push (@nss_cfg, "$param ".$cfg->val('nss_ldap', $param));
 207                 }
 208     }
 209     if ($cfg->SectionExists('goto')){
 210         $goto_admin= $cfg->val('goto', 'terminal_admin');
 211         $goto_secret= $cfg->val('goto', 'terminal_secret');
 212     } else {
 213         $goto_admin= undef;
 214         $goto_secret= undef;
 215     }
 216
 217 }
 218
 219
 220 #===  FUNCTION  ================================================================
 221 #         NAME:  get_mac
 222 #   PARAMETERS:  interface name (i.e. eth0)
 223 #      RETURNS:  (mac address)
 224 #  DESCRIPTION:  Uses ioctl to get mac address directly from system.
 225 #===============================================================================
 226 sub get_mac {
 227         my $ifreq= shift;
 228         my $result;
 229         if ($ifreq && length($ifreq) > 0) {
 230                 if($ifreq eq "all") {
 231                         $result = "00:00:00:00:00:00";
 232                 } else {
 233                         my $SIOCGIFHWADDR= 0x8927;     # man 2 ioctl_list
 234
 235                         # A configured MAC Address should always override a guessed value
 236                         if ($main::server_mac_address and length($main::server_mac_address) > 0) {
 237                                 $result= $main::server_mac_address;
 238                         }
 239
 240                         socket SOCKET, PF_INET, SOCK_DGRAM, getprotobyname('ip')
 241                                 or die "socket: $!";
 242
 243                         if(ioctl SOCKET, $SIOCGIFHWADDR, $ifreq) {
 244                                 my ($if, $mac)= unpack 'h36 H12', $ifreq;
 245
 246                                 if (length($mac) > 0) {
 247                                         $mac=~ m/^([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])$/;
 248                                         $mac= sprintf("%s:%s:%s:%s:%s:%s", $1, $2, $3, $4, $5, $6);
 249                                         $result = $mac;
 250                                 }
 251                         }
 252                 }
 253         }
 254         return $result;
 255 }
 256
 257
 258 #===  FUNCTION  ================================================================
 259 #         NAME:  process_incoming_msg
 260 #   PARAMETERS:  crypted_msg - string - incoming crypted message
 261 #      RETURNS:  nothing
 262 #  DESCRIPTION:  handels the proceeded distribution to the appropriated functions
 263 #===============================================================================
 264 sub process_incoming_msg {
 265     my ($msg, $msg_hash, $session_id) = @_ ;
 266     my $error = 0;
 267     my $host_name;
 268     my $host_key;
 269     my @out_msg_l = ("nohandler");
 270     my $sql_events;
 271
 272     # process incoming msg
 273     my $header = @{$msg_hash->{header}}[0];
 274     my $source = @{$msg_hash->{source}}[0];
 275     my @target_l = @{$msg_hash->{target}};
 276
 277     # skip PREFIX
 278     $header =~ s/^CLMSG_//;
 279
 280     &main::daemon_log("$session_id DEBUG: ClientPackages: msg to process: $header", 7);
 281
 282     if( 0 == length @target_l){
 283         &main::daemon_log("$session_id ERROR: no target specified for msg $header", 1);
 284         $error++;
 285     } elsif( 1 == length @target_l) {
 286         my $target = $target_l[0];
 287                 if(&server_matches($target)) {
 288             if ($header eq 'new_key') {
 289                 @out_msg_l = &new_key($msg_hash)
 290             } elsif ($header eq 'here_i_am') {
 291                 @out_msg_l = &here_i_am($msg, $msg_hash, $session_id)
 292             } else {
 293                 # a event exists with the header as name
 294                 if( exists $event2module_hash->{$header} ) {
 295                     &main::daemon_log("$session_id INFO: found event '$header' at event-module '".$event2module_hash->{$header}."'", 5);
 296                     no strict 'refs';
 297                     @out_msg_l = &{$event2module_hash->{$header}."::$header"}($msg, $msg_hash, $session_id);
 298
 299                 # if no event handler is implemented
 300                 } else {
 301                     $sql_events = "SELECT * FROM $main::known_clients_tn WHERE ( (macaddress LIKE '$source') OR (hostname='$source') )";
 302                     my $res = $main::known_clients_db->select_dbentry( $sql_events );
 303                     my $l = keys(%$res);
 304
 305                     # set error if no or more than 1 hits are found for sql query
 306                     if ( $l != 1) {
 307                         @out_msg_l = ('knownclienterror');
 308
 309                     # found exact 1 hit in db
 310                     } else {
 311                         my $client_events = $res->{'1'}->{'events'};
 312
 313                         # client is registered for this event, deliver this message to client
 314                         $header =~ s/^answer_//;
 315                         if ($client_events =~ /,$header,/) {
 316                             # answer message finally arrived destination server, so forward messages to GOsa
 317                             if ($target eq $main::server_address) {
 318                                 $msg =~ s/<header>answer_/<header>/;
 319                                 $msg =~ s/<target>\S+<\/target>/<target>GOSA<\/target>/;
 320                             }
 321                             @out_msg_l = ( $msg );
 322
 323                         # client is not registered for this event, set error
 324                         } else {
 325                             @out_msg_l = ('noeventerror');
 326                         }
 327                     }
 328                 }
 329             }
 330
 331             # if delivery not possible raise error and return
 332             if( not defined $out_msg_l[0] ) {
 333                 @out_msg_l = ();
 334             } elsif( $out_msg_l[0] eq 'nohandler') {
 335                 &main::daemon_log("$session_id ERROR: ClientPackages: no event handler or core function defined for '$header'", 1);
 336                 @out_msg_l = ();
 337             }  elsif ($out_msg_l[0] eq 'knownclienterror') {
 338                 &main::daemon_log("$session_id ERROR: no or more than 1 hits are found at known_clients_db with sql query: '$sql_events'", 1);
 339                 &main::daemon_log("$session_id ERROR: processing is aborted and message will not be forwarded", 1);
 340                 @out_msg_l = ();
 341             } elsif ($out_msg_l[0] eq 'noeventerror') {
 342                 &main::daemon_log("$session_id ERROR: client '$target' is not registered for event '$header', processing is aborted", 1);
 343                 @out_msg_l = ();
 344             }
 345         } else {
 346                         &main::daemon_log("INFO: msg is not for gosa-si-server '$server_address', deliver it to target '$target'", 5);
 347                         push(@out_msg_l, $msg);
 348                 }
 349     }
 350
 351     return \@out_msg_l;
 352 }
 353
 354
 355 #===  FUNCTION  ================================================================
 356 #         NAME:  new_passwd
 357 #   PARAMETERS:  msg_hash - ref - hash from function create_xml_hash
 358 #      RETURNS:  nothing
 359 #  DESCRIPTION:  process this incoming message
 360 #===============================================================================
 361 sub new_key {
 362     my ($msg_hash) = @_;
 363     my @out_msg_l;
 364
 365     my $header = @{$msg_hash->{header}}[0];
 366     my $source_name = @{$msg_hash->{source}}[0];
 367     my $source_key = @{$msg_hash->{new_key}}[0];
 368     my $query_res;
 369
 370     # check known_clients_db
 371     my $sql_statement = "SELECT * FROM known_clients WHERE hostname='$source_name'";
 372     $query_res = $main::known_clients_db->select_dbentry( $sql_statement );
 373     if( 1 == keys %{$query_res} ) {
 374         my $act_time = &get_time;
 375         my $sql_statement= "UPDATE known_clients ".
 376             "SET hostkey='$source_key', timestamp='$act_time' ".
 377             "WHERE hostname='$source_name'";
 378         my $res = $main::known_clients_db->update_dbentry( $sql_statement );
 379         my $hash = &create_xml_hash("confirm_new_key", $server_address, $source_name);
 380         my $out_msg = &create_xml_string($hash);
 381         push(@out_msg_l, $out_msg);
 382     }
 383
 384     # only do if host still not found
 385     if( 0 == @out_msg_l ) {
 386         # check known_server_db
 387         $sql_statement = "SELECT * FROM known_server WHERE hostname='$source_name'";
 388         $query_res = $main::known_server_db->select_dbentry( $sql_statement );
 389         if( 1 == keys %{$query_res} ) {
 390             my $act_time = &get_time;
 391             my $sql_statement= "UPDATE known_server ".
 392                 "SET hostkey='$source_key', timestamp='$act_time' ".
 393                 "WHERE hostname='$source_name'";
 394             my $res = $main::known_server_db->update_dbentry( $sql_statement );
 395
 396             my $hash = &create_xml_hash("confirm_new_key", $server_address, $source_name);
 397             my $out_msg = &create_xml_string($hash);
 398             push(@out_msg_l, $out_msg);
 399         }
 400     }
 401
 402     return @out_msg_l;
 403 }
 404
 405
 406 #===  FUNCTION  ================================================================
 407 #         NAME:  here_i_am
 408 #   PARAMETERS:  msg_hash - hash - hash from function create_xml_hash
 409 #      RETURNS:  nothing
 410 #  DESCRIPTION:  process this incoming message
 411 #===============================================================================
 412 sub here_i_am {
 413     my ($msg, $msg_hash, $session_id) = @_;
 414     my @out_msg_l;
 415     my $out_hash;
 416     my $source = @{$msg_hash->{source}}[0];
 417     my $mac_address = @{$msg_hash->{mac_address}}[0];
 418         my $gotoHardwareChecksum = @{$msg_hash->{gotoHardwareChecksum}}[0];
 419     my $client_status = @{$msg_hash->{client_status}}[0];
 420     my $client_revision = @{$msg_hash->{client_revision}}[0];
 421     my $key_lifetime = @{$msg_hash->{key_lifetime}}[0];
 422
 423     # Move forced hostname to heap - if used
 424     #FIXME: move to some global POE namespace - please
 425     if ( defined($msg_hash->{'force-hostname'}[0]) &&
 426        length($msg_hash->{'force-hostname'}[0]) > 0){
 427     #      $heap->{force-hostname}->{$mac_address}= $msg_hash->{'force-hostname'}[0];
 428             open (TFILE, ">/var/tmp/$mac_address");
 429             print TFILE $msg_hash->{'force-hostname'}[0];
 430             close (TFILE);
 431     } else {
 432     #      $heap->{force-hostname}->{$mac_address}= undef;
 433         if ( -e "/var/tmp/$mac_address") {
 434                 unlink("/var/tmp/$mac_address")
 435         };
 436     }
 437
 438     # number of known clients
 439     my $nu_clients= $main::known_clients_db->count_dbentries('known_clients');
 440
 441     # check wether client address or mac address is already known
 442     my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$source'";
 443     my $db_res= $main::known_clients_db->select_dbentry( $sql_statement );
 444
 445     if ( 1 == keys %{$db_res} ) {
 446         &main::daemon_log("$session_id WARNING: $source is already known as a client", 1);
 447         &main::daemon_log("$session_id WARNING: values for $source are being overwritten", 1);
 448         $nu_clients --;
 449     }
 450
 451     # number of current active clients
 452     my $act_nu_clients = $nu_clients;
 453
 454     &main::daemon_log("$session_id INFO: number of current active clients: $act_nu_clients", 5);
 455     &main::daemon_log("$session_id INFO: number of maximal allowed clients: $max_clients", 5);
 456
 457     if($max_clients <= $act_nu_clients) {
 458         my $out_hash = &create_xml_hash("denied", $server_address, $source);
 459         &add_content2xml_hash($out_hash, "denied", "I_cannot_take_any_more_clients!");
 460         my $passwd = @{$msg_hash->{new_passwd}}[0];
 461         &send_msg_hash2address($out_hash, $source, $passwd);
 462         return;
 463     }
 464
 465     # new client accepted
 466     my $new_passwd = @{$msg_hash->{new_passwd}}[0];
 467
 468     # add entry to known_clients_db
 469     my $events = @{$msg_hash->{events}}[0];
 470     my $act_timestamp = &get_time;
 471     my $res = $main::known_clients_db->add_dbentry( {table=>'known_clients',
 472                                                 primkey=>['hostname'],
 473                                                 hostname=>$source,
 474                                                 events=>$events,
 475                                                 macaddress=>$mac_address,
 476                                                 status=>'registered',
 477                                                 hostkey=>$new_passwd,
 478                                                 timestamp=>$act_timestamp,
 479                                                 keylifetime=>$key_lifetime,
 480                                                 } );
 481
 482     if ($res != 0)  {
 483         &main::daemon_log("$session_id ERROR: cannot add entry to known_clients: $res");
 484         return;
 485     }
 486
 487     # return acknowledgement to client
 488     $out_hash = &create_xml_hash("registered", $server_address, $source);
 489
 490
 491     # give the new client his ldap config
 492     # Workaround: Send within the registration response, if the client will get an ldap config later
 493         my $new_ldap_config_out = &new_ldap_config($source, $session_id);
 494         if($new_ldap_config_out && (!($new_ldap_config_out =~ /error/))) {
 495                 &add_content2xml_hash($out_hash, "ldap_available", "true");
 496         } elsif($new_ldap_config_out && $new_ldap_config_out =~ /error/){
 497                 &add_content2xml_hash($out_hash, "error", $new_ldap_config_out);
 498
 499                 my $sql_statement = "UPDATE $main::job_queue_tn ".
 500                 "SET status='error', result='$new_ldap_config_out' ".
 501                 "WHERE status='processing' AND macaddress LIKE '$mac_address'";
 502                 my $res = $main::job_db->update_dbentry($sql_statement);
 503                 &main::daemon_log("$session_id DEBUG: $sql_statement RESULT: $res", 7);
 504         }
 505     my $register_out = &create_xml_string($out_hash);
 506     push(@out_msg_l, $register_out);
 507
 508     # Really send the ldap config
 509     if( $new_ldap_config_out && (!($new_ldap_config_out =~ /error/))) {
 510             push(@out_msg_l, $new_ldap_config_out);
 511     }
 512
 513     # Send client hardware configuration
 514         my $hardware_config_out = &hardware_config($msg, $msg_hash, $session_id);
 515         if( $hardware_config_out ) {
 516                 push(@out_msg_l, $hardware_config_out);
 517         }
 518
 519     # Send client ntp server
 520     my $ntp_config_out = &new_ntp_config($mac_address, $session_id);
 521     if ($ntp_config_out) {
 522         push(@out_msg_l, $ntp_config_out);
 523     }
 524
 525     # Send client syslog server
 526     my $syslog_config_out = &new_syslog_config($mac_address, $session_id);
 527     if ($syslog_config_out) {
 528         push(@out_msg_l, $syslog_config_out);
 529     }
 530
 531     # notify registered client to all other server
 532     my %mydata = ( 'client' => $source, 'macaddress' => $mac_address);
 533     my $mymsg = &build_msg('new_foreign_client', $main::server_address, "KNOWN_SERVER", \%mydata);
 534     push(@out_msg_l, $mymsg);
 535
 536     &main::daemon_log("$session_id INFO: register client $source ($mac_address)", 5);
 537     &main::daemon_log("$session_id INFO: client version: $client_status - $client_revision", 5);
 538     return @out_msg_l;
 539 }
 540
 541
 542 #===  FUNCTION  ================================================================
 543 #         NAME:  who_has
 544 #   PARAMETERS:  msg_hash - hash - hash from function create_xml_hash
 545 #      RETURNS:  nothing
 546 #  DESCRIPTION:  process this incoming message
 547 #===============================================================================
 548 sub who_has {
 549     my ($msg_hash) = @_ ;
 550     my @out_msg_l;
 551
 552     # what is your search pattern
 553     my $search_pattern = @{$msg_hash->{who_has}}[0];
 554     my $search_element = @{$msg_hash->{$search_pattern}}[0];
 555     &main::daemon_log("who_has-msg looking for $search_pattern $search_element", 7);
 556
 557     # scanning known_clients for search_pattern
 558     my @host_addresses = keys %$main::known_clients;
 559     my $known_clients_entries = length @host_addresses;
 560     my $host_address;
 561     foreach my $host (@host_addresses) {
 562         my $client_element = $main::known_clients->{$host}->{$search_pattern};
 563         if ($search_element eq $client_element) {
 564             $host_address = $host;
 565             last;
 566         }
 567     }
 568
 569     # search was successful
 570     if (defined $host_address) {
 571         my $source = @{$msg_hash->{source}}[0];
 572         my $out_hash = &create_xml_hash("who_has_i_do", $server_address, $source, "mac_address");
 573         &add_content2xml_hash($out_hash, "mac_address", $search_element);
 574         my $out_msg = &create_xml_string($out_hash);
 575         push(@out_msg_l, $out_msg);
 576     }
 577     return @out_msg_l;
 578 }
 579
 580
 581 sub who_has_i_do {
 582     my ($msg_hash) = @_ ;
 583     my $header = @{$msg_hash->{header}}[0];
 584     my $source = @{$msg_hash->{source}}[0];
 585     my $search_param = @{$msg_hash->{$header}}[0];
 586     my $search_value = @{$msg_hash->{$search_param}}[0];
 587     print "\ngot msg $header:\nserver $source has client with $search_param $search_value\n";
 588 }
 589
 590
 591 sub new_syslog_config {
 592     my ($mac_address, $session_id) = @_;
 593     my $syslog_msg;
 594     my $ldap_handle=&main::get_ldap_handle();
 595
 596         # Perform search
 597     my $ldap_res = $ldap_handle->search( base   => $ldap_base,
 598                 scope  => 'sub',
 599                 attrs => ['gotoSyslogServer'],
 600                 filter => "(&(objectClass=GOhard)(macaddress=$mac_address))");
 601         if($ldap_res->code) {
 602                 &main::daemon_log("$session_id ".$ldap_res->error, 1);
 603         &main::release_ldap_handle($ldap_handle);
 604                 return;
 605         }
 606
 607         # Sanity check
 608         if ($ldap_res->count != 1) {
 609                 &main::daemon_log("$session_id ERROR: client with mac address $mac_address not found/unique/active - not sending syslog config".
 610                 "\n\tbase: $ldap_base".
 611                 "\n\tscope: sub".
 612                 "\n\tattrs: gotoSyslogServer".
 613                 "\n\tfilter: (&(objectClass=GOhard)(macaddress=$mac_address))", 1);
 614         &main::release_ldap_handle($ldap_handle);
 615                 return;
 616         }
 617
 618         my $entry= $ldap_res->entry(0);
 619     my $filter_dn = &Net::LDAP::Util::escape_filter_value($entry->dn);
 620         my $syslog_server = $entry->get_value("gotoSyslogServer");
 621
 622     # If no syslog server is specified at host, just have a look at the object group of the host
 623     # Perform object group search
 624     if (not defined $syslog_server) {
 625         my $ldap_res = $ldap_handle->search( base   => $ldap_base,
 626                 scope  => 'sub',
 627                 attrs => ['gotoSyslogServer'],
 628                 filter => "(&(objectClass=gosaGroupOfNames)(member=$filter_dn))");
 629         if($ldap_res->code) {
 630             &main::daemon_log("$session_id ".$ldap_res->error, 1);
 631             &main::release_ldap_handle($ldap_handle);
 632             return;
 633         }
 634
 635         # Sanity check
 636         if ($ldap_res->count != 1) {
 637             &main::daemon_log("$session_id ERROR: client with mac address $mac_address not found/unique/active - not sending syslog config".
 638                     "\n\tbase: $ldap_base".
 639                     "\n\tscope: sub".
 640                     "\n\tattrs: gotoSyslogServer".
 641                     "\n\tfilter: (&(objectClass=gosaGroupOfNames)(member=$filter_dn))", 1);
 642             &main::release_ldap_handle($ldap_handle);
 643             return;
 644         }
 645
 646         my $entry= $ldap_res->entry(0);
 647         $syslog_server= $entry->get_value("gotoSyslogServer");
 648     }
 649
 650     # Return if no syslog server specified
 651     if (not defined $syslog_server) {
 652         &main::daemon_log("$session_id WARNING: no syslog server specified for this host '$mac_address'", 3);
 653         &main::release_ldap_handle($ldap_handle);
 654         return;
 655     }
 656
 657
 658     # Add syslog server to 'syslog_config' message
 659     my $syslog_msg_hash = &create_xml_hash("new_syslog_config", $server_address, $mac_address);
 660     &add_content2xml_hash($syslog_msg_hash, "server", $syslog_server);
 661
 662     &main::release_ldap_handle($ldap_handle);
 663     return &create_xml_string($syslog_msg_hash);
 664 }
 665
 666
 667 sub new_ntp_config {
 668     my ($address, $session_id) = @_;
 669     my $ntp_msg;
 670     my $ldap_handle=&main::get_ldap_handle();
 671
 672         # Perform search
 673     my $ldap_res = $ldap_handle->search( base   => $ldap_base,
 674                 scope  => 'sub',
 675                 attrs => ['gotoNtpServer'],
 676                 filter => "(&(objectClass=GOhard)(macaddress=$address))");
 677         if($ldap_res->code) {
 678                 &main::daemon_log("$session_id ".$ldap_res->error, 1);
 679         &main::release_ldap_handle($ldap_handle);
 680                 return;
 681         }
 682
 683         # Sanity check
 684         if ($ldap_res->count != 1) {
 685                 &main::daemon_log("$session_id ERROR: client with mac address $address not found/unique/active - not sending ntp config".
 686                 "\n\tbase: $ldap_base".
 687                 "\n\tscope: sub".
 688                 "\n\tattrs: gotoNtpServer".
 689                 "\n\tfilter: (&(objectClass=GOhard)(macaddress=$address))", 1);
 690         &main::release_ldap_handle($ldap_handle);
 691                 return;
 692         }
 693
 694         my $entry= $ldap_res->entry(0);
 695     my $filter_dn = &Net::LDAP::Util::escape_filter_value($entry->dn);
 696         my @ntp_servers= $entry->get_value("gotoNtpServer");
 697
 698     # If no ntp server is specified at host, just have a look at the object group of the host
 699     # Perform object group search
 700     if ((not @ntp_servers) || (@ntp_servers == 0)) {
 701         my $ldap_res = $ldap_handle->search( base   => $ldap_base,
 702                 scope  => 'sub',
 703                 attrs => ['gotoNtpServer'],
 704                 filter => "(&(objectClass=gosaGroupOfNames)(member=$filter_dn))");
 705         if($ldap_res->code) {
 706             &main::daemon_log("$session_id ".$ldap_res->error, 1);
 707             &main::release_ldap_handle($ldap_handle);
 708             return;
 709         }
 710
 711         # Sanity check
 712         if ($ldap_res->count != 1) {
 713             &main::daemon_log("$session_id ERROR: client with mac address $address not found/unique/active - not sending ntp config".
 714                     "\n\tbase: $ldap_base".
 715                     "\n\tscope: sub".
 716                     "\n\tattrs: gotoNtpServer".
 717                     "\n\tfilter: (&(objectClass=gosaGroupOfNames)(member=$filter_dn))", 1);
 718             &main::release_ldap_handle($ldap_handle);
 719             return;
 720         }
 721
 722         my $entry= $ldap_res->entry(0);
 723         @ntp_servers= $entry->get_value("gotoNtpServer");
 724     }
 725
 726     # Return if no ntp server specified
 727     if ((not @ntp_servers) || (@ntp_servers == 0)) {
 728         &main::daemon_log("$session_id WARNING: no ntp server specified for this host '$address'", 3);
 729         &main::release_ldap_handle($ldap_handle);
 730         return;
 731     }
 732
 733     # Add each ntp server to 'ntp_config' message
 734     my $ntp_msg_hash = &create_xml_hash("new_ntp_config", $server_address, $address);
 735     foreach my $ntp_server (@ntp_servers) {
 736         &add_content2xml_hash($ntp_msg_hash, "server", $ntp_server);
 737     }
 738
 739     &main::release_ldap_handle($ldap_handle);
 740     return &create_xml_string($ntp_msg_hash);
 741 }
 742
 743
 744 #===  FUNCTION  ================================================================
 745 #         NAME:  new_ldap_config
 746 #   PARAMETERS:  address - string - ip address and port of a host
 747 #      RETURNS:  gosa-si conform message
 748 #  DESCRIPTION:  send to address the ldap configuration found for dn gotoLdapServer
 749 #===============================================================================
 750 sub new_ldap_config {
 751         my ($address, $session_id) = @_ ;
 752
 753         my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$address' OR macaddress LIKE '$address'";
 754         my $res = $main::known_clients_db->select_dbentry( $sql_statement );
 755
 756         # check hit
 757         my $hit_counter = keys %{$res};
 758         if( not $hit_counter == 1 ) {
 759                 &main::daemon_log("$session_id ERROR: more or no hit found in known_clients_db by query '$sql_statement'", 1);
 760         return;
 761         }
 762
 763     $address = $res->{1}->{hostname};
 764         my $macaddress = $res->{1}->{macaddress};
 765         my $hostkey = $res->{1}->{hostkey};
 766
 767         if (not defined $macaddress) {
 768                 &main::daemon_log("$session_id ERROR: no mac address found for client $address", 1);
 769                 return;
 770         }
 771
 772         # Perform search
 773     my $ldap_handle=&main::get_ldap_handle();
 774     $mesg = $ldap_handle->search( base   => $ldap_base,
 775                 scope  => 'sub',
 776                 attrs => ['dn', 'gotoLdapServer', 'gosaUnitTag', 'FAIclass'],
 777                 filter => "(&(objectClass=GOhard)(macaddress=$macaddress))");
 778         if($mesg->code) {
 779                 &main::daemon_log("$session_id ".$mesg->error, 1);
 780         &main::release_ldap_handle($ldap_handle);
 781                 return;
 782         }
 783
 784         # Sanity check
 785         if ($mesg->count != 1) {
 786                 &main::daemon_log("$session_id ERROR: client with mac address $macaddress not found/unique/active - not sending ldap config".
 787                 "\n\tbase: $ldap_base".
 788                 "\n\tscope: sub".
 789                 "\n\tattrs: dn, gotoLdapServer".
 790                 "\n\tfilter: (&(objectClass=GOhard)(macaddress=$macaddress))", 1);
 791         &main::release_ldap_handle($ldap_handle);
 792                 return;
 793         }
 794
 795         my $entry= $mesg->entry(0);
 796         my $filter_dn= &Net::LDAP::Util::escape_filter_value($entry->dn);
 797         my @servers= $entry->get_value("gotoLdapServer");
 798         my $unit_tag= $entry->get_value("gosaUnitTag");
 799         my @ldap_uris;
 800         my $server;
 801         my $base;
 802         my $release;
 803     my $dn= $entry->dn;
 804
 805         # Fill release if available
 806         my $FAIclass= $entry->get_value("FAIclass");
 807         if (defined $FAIclass && $FAIclass =~ /^.* :([A-Za-z0-9\/.]+).*$/) {
 808                 $release= $1;
 809         }
 810
 811         # Do we need to look at an object class?
 812         if (not @servers){
 813                 $mesg = $ldap_handle->search( base   => $ldap_base,
 814                         scope  => 'sub',
 815                         attrs => ['dn', 'gotoLdapServer', 'FAIclass'],
 816                         filter => "(&(objectClass=gosaGroupOfNames)(member=$filter_dn))");
 817                 if($mesg->code) {
 818                         &main::daemon_log("$session_id ERROR: unable to search for '(&(objectClass=gosaGroupOfNames)(member=$filter_dn))': ".$mesg->error, 1);
 819             &main::release_ldap_handle($ldap_handle);
 820                         return;
 821                 }
 822
 823                 # Sanity check
 824         if ($mesg->count != 1) {
 825             &main::daemon_log("$session_id ERROR: client with mac address $macaddress not found/unique/active - not sending ldap config".
 826                     "\n\tbase: $ldap_base".
 827                     "\n\tscope: sub".
 828                     "\n\tattrs: dn, gotoLdapServer, FAIclass".
 829                     "\n\tfilter: (&(objectClass=gosaGroupOfNames)(member=$filter_dn))", 1);
 830             &main::release_ldap_handle($ldap_handle);
 831             return;
 832         }
 833
 834                 $entry= $mesg->entry(0);
 835                 $dn= $entry->dn;
 836                 @servers= $entry->get_value("gotoLdapServer");
 837
 838                 if (not defined $release){
 839                         $FAIclass= $entry->get_value("FAIclass");
 840                         if (defined $FAIclass && $FAIclass =~ /^.* :([A-Za-z0-9\/.]+).*$/) {
 841                                 $release= $1;
 842                         }
 843                 }
 844         }
 845
 846         @servers= sort (@servers);
 847
 848     # complain if no ldap information found
 849     if (@servers == 0) {
 850         &main::daemon_log("$session_id ERROR: no gotoLdapServer information for LDAP entry '$dn'", 1);
 851     }
 852
 853         foreach $server (@servers){
 854                 # Conversation for backward compatibility
 855                 if (not $server =~ /^\d+:[^:]+:ldap[^:]*:\/\// ) {
 856                     if ($server =~ /^([^:]+):([^:]+)$/ ) {
 857                       $server= "1:dummy:ldap://$1/$2";
 858                     } elsif ($server =~ /^(\d+):([^:]+):(.*)$/ ) {
 859                       $server= "$1:dummy:ldap://$2/$3";
 860                     }
 861                 }
 862
 863                 $base= $server;
 864                 $server =~ s%^[^:]+:[^:]+:(ldap.*://[^/]+)/.*$%$1%;
 865                 $base =~ s%^[^:]+:[^:]+:ldap.*://[^/]+/(.*)$%$1%;
 866                 push (@ldap_uris, $server);
 867         }
 868
 869         # Assemble data package
 870         my %data = ( 'ldap_uri'  => \@ldap_uris, 'ldap_base' => $base,
 871                 'ldap_cfg' => \@ldap_cfg, 'pam_cfg' => \@pam_cfg,'nss_cfg' => \@nss_cfg );
 872         if (defined $release){
 873                 $data{'release'}= $release;
 874         }
 875
 876         # Need to append GOto settings?
 877         if (defined $goto_admin and defined $goto_secret){
 878                 $data{'goto_admin'}= $goto_admin;
 879                 $data{'goto_secret'}= $goto_secret;
 880         }
 881
 882         # Append unit tag if needed
 883         if (defined $unit_tag){
 884
 885                 # Find admin base and department name
 886                 $mesg = $ldap_handle->search( base   => $ldap_base,
 887                         scope  => 'sub',
 888                         attrs => ['dn', 'ou'],
 889                         filter => "(&(objectClass=gosaAdministrativeUnit)(gosaUnitTag=$unit_tag))");
 890                 #$mesg->code && die $mesg->error;
 891                 if($mesg->code) {
 892                         &main::daemon_log($mesg->error, 1);
 893             &main::release_ldap_handle($ldap_handle);
 894                         return "error-unit-tag-count-0";
 895                 }
 896
 897                 # Sanity check
 898                 if ($mesg->count != 1) {
 899                         &main::daemon_log("WARNING: cannot find administrative unit for client with tag $unit_tag", 1);
 900             &main::release_ldap_handle($ldap_handle);
 901                         return "error-unit-tag-count-".$mesg->count;
 902                 }
 903
 904                 $entry= $mesg->entry(0);
 905                 $data{'admin_base'}= $entry->dn;
 906                 $data{'department'}= $entry->get_value("ou");
 907
 908                 # Append unit Tag
 909                 $data{'unit_tag'}= $unit_tag;
 910         }
 911     &main::release_ldap_handle($ldap_handle);
 912
 913         # Send information
 914         return &build_msg("new_ldap_config", $server_address, $address, \%data);
 915 }
 916
 917
 918 #===  FUNCTION  ================================================================
 919 #         NAME:  hardware_config
 920 #   PARAMETERS:  address - string - ip address and port of a host
 921 #      RETURNS:
 922 #  DESCRIPTION:
 923 #===============================================================================
 924 sub hardware_config {
 925         my ($msg, $msg_hash, $session_id) = @_ ;
 926         my $address = @{$msg_hash->{source}}[0];
 927         my $header = @{$msg_hash->{header}}[0];
 928         my $gotoHardwareChecksum = @{$msg_hash->{gotoHardwareChecksum}}[0];
 929
 930         my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$address'";
 931         my $res = $main::known_clients_db->select_dbentry( $sql_statement );
 932
 933         # check hit
 934         my $hit_counter = keys %{$res};
 935         if( not $hit_counter == 1 ) {
 936                 &main::daemon_log("$session_id ERROR: more or no hit found in known_clients_db by query by '$address'", 1);
 937         }
 938         my $macaddress = $res->{1}->{macaddress};
 939         my $hostkey = $res->{1}->{hostkey};
 940
 941         if (not defined $macaddress) {
 942                 &main::daemon_log("$session_id ERROR: no mac address found for client $address", 1);
 943                 return;
 944         }
 945
 946         # Perform search
 947     my $ldap_handle=&main::get_ldap_handle();
 948         $mesg = $ldap_handle->search(
 949                 base   => $ldap_base,
 950                 scope  => 'sub',
 951                 filter => "(&(objectClass=GOhard)(|(macAddress=$macaddress)(dhcpHWaddress=ethernet $macaddress)))"
 952         );
 953
 954         if($mesg->count() == 0) {
 955                 &main::daemon_log("Host was not found in LDAP!", 1);
 956
 957                 # set status = hardware_detection at jobqueue if entry exists
 958                 # TODO
 959                 # resolve plain name for host
 960                 my $func_dic = {table=>$main::job_queue_tn,
 961                                 primkey=>['macaddress', 'headertag'],
 962                                 timestamp=>&get_time,
 963                                 status=>'processing',
 964                                 result=>'none',
 965                                 progress=>'hardware-detection',
 966                                 headertag=>'trigger_action_reinstall',
 967                                 targettag=>$address,
 968                                 xmlmessage=>'none',
 969                                 macaddress=>$macaddress,
 970                                 plainname=>'none',
 971                 siserver=>'localhost',
 972                 modified=>'1',
 973                 };
 974                 my $hd_res = $main::job_db->add_dbentry($func_dic);
 975                 &main::daemon_log("$session_id INFO: add '$macaddress' to job queue as an installing job", 5);
 976
 977         } else {
 978                 my $entry= $mesg->entry(0);
 979                 if (defined($entry->get_value("gotoHardwareChecksum"))) {
 980                         if (! $entry->get_value("gotoHardwareChecksum") eq $gotoHardwareChecksum) {
 981                                 $entry->replace(gotoHardwareChecksum => $gotoHardwareChecksum);
 982                                 if($entry->update($ldap_handle)) {
 983                                         &main::daemon_log("$session_id INFO: Hardware changed! Detection triggered.", 5);
 984                                 }
 985                         } else {
 986                                 # Nothing to do
 987                 &main::release_ldap_handle($ldap_handle);
 988                                 return;
 989                         }
 990                 }
 991         }
 992
 993         # Assemble data package
 994         my %data = ();
 995
 996         # Need to append GOto settings?
 997         if (defined $goto_admin and defined $goto_secret){
 998                 $data{'goto_admin'}= $goto_admin;
 999                 $data{'goto_secret'}= $goto_secret;
1000         }
1001
1002     &main::release_ldap_handle($ldap_handle);
1003
1004         # Send information
1005         return &build_msg("detect_hardware", $server_address, $address, \%data);
1006 }
1007
1008 sub server_matches {
1009         my $target = shift;
1010         my $target_ip = ($1) if $target =~ /^([0-9\.]*?):.*$/;
1011         if(!defined($target_ip) or length($target_ip) == 0) {
1012                 return;
1013         }
1014
1015         my $result = 0;
1016
1017         if($server_ip eq $target_ip) {
1018                 $result= 1;
1019         } elsif ($target_ip eq "0.0.0.0") {
1020                 $result= 1;
1021         } elsif ($server_ip eq "0.0.0.0") {
1022                 if ($target_ip eq "127.0.0.1") {
1023                         $result= 1;
1024                 } else {
1025                         my $PROC_NET_ROUTE= ('/proc/net/route');
1026
1027                         open(PROC_NET_ROUTE, "<$PROC_NET_ROUTE")
1028                                 or die "Could not open $PROC_NET_ROUTE";
1029
1030                         my @ifs = <PROC_NET_ROUTE>;
1031
1032                         close(PROC_NET_ROUTE);
1033
1034                         # Eat header line
1035                         shift @ifs;
1036                         chomp @ifs;
1037                         foreach my $line(@ifs) {
1038                                 my ($Iface,$Destination,$Gateway,$Flags,$RefCnt,$Use,$Metric,$Mask,$MTU,$Window,$IRTT)=split(/\s/, $line);
1039                                 my $destination;
1040                                 my $mask;
1041                                 my ($d,$c,$b,$a)=unpack('a2 a2 a2 a2', $Destination);
1042                                 $destination= sprintf("%d.%d.%d.%d", hex($a), hex($b), hex($c), hex($d));
1043                                 ($d,$c,$b,$a)=unpack('a2 a2 a2 a2', $Mask);
1044                                 $mask= sprintf("%d.%d.%d.%d", hex($a), hex($b), hex($c), hex($d));
1045                                 if(new NetAddr::IP($target_ip)->within(new NetAddr::IP($destination, $mask))) {
1046                                         # destination matches route, save mac and exit
1047                                         $result= 1;
1048                                         last;
1049                                 }
1050                         }
1051                 }
1052         } else {
1053                 &main::daemon_log("Target ip $target_ip does not match Server ip $server_ip",1);
1054         }
1055
1056         return $result;
1057 }
1058
1059 # vim:ts=4:shiftwidth:expandtab
1060 1;