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   # Check if ou=incoming exists
 157   # TODO: This should be transferred to a module init-function
 158   my $ldap_handle = &main::get_ldap_handle();
 159   if( defined($ldap_handle) ) {
 160     &main::daemon_log("0 DEBUG: Searching for ou=incoming container for new clients", 9);
 161     # Perform search
 162     my $mesg = $ldap_handle->search(
 163       base   => $ldap_base,
 164       scope  => 'one',
 165       filter => "(&(ou=incoming)(objectClass=organizationalUnit))"
 166     );
 167     if(not defined($mesg->count) or $mesg->count == 0) {
 168             my $incomingou = Net::LDAP::Entry->new();
 169             $incomingou->dn('ou=incoming,'.$ldap_base);
 170             $incomingou->add('objectClass' => 'organizationalUnit');
 171             $incomingou->add('ou' => 'incoming');
 172             my $result = $incomingou->update($ldap_handle);
 173             if($result->code != 0) {
 174                 &main::daemon_log("0 ERROR: Problem adding ou=incoming: '".$result->error()."'!", 1);
 175             }
 176     }
 177   }
 178   &main::release_ldap_handle($ldap_handle);
 179 }
 180
 181
 182 ### functions #################################################################
 183
 184
 185 sub get_module_info {
 186     my @info = ($server_address,
 187                 $ClientPackages_key,
 188                 $event_hash,
 189                 );
 190     return \@info;
 191 }
 192
 193
 194 #===  FUNCTION  ================================================================
 195 #         NAME:  local_read_configfile
 196 #   PARAMETERS:  cfg_file - string -
 197 #      RETURNS:  nothing
 198 #  DESCRIPTION:  read cfg_file and set variables
 199 #===============================================================================
 200 sub local_read_configfile {
 201     my $cfg;
 202     if( defined( $main::cfg_file) && ( (-s $main::cfg_file) > 0 )) {
 203         if( -r $main::cfg_file ) {
 204             $cfg = Config::IniFiles->new( -file => $main::cfg_file );
 205         } else {
 206             print STDERR "Couldn't read config file!";
 207         }
 208     } else {
 209         $cfg = Config::IniFiles->new() ;
 210     }
 211     foreach my $section (keys %cfg_defaults) {
 212         foreach my $param (keys %{$cfg_defaults{ $section }}) {
 213             my $pinfo = $cfg_defaults{ $section }{ $param };
 214             ${@$pinfo[0]} = $cfg->val( $section, $param, @$pinfo[1] );
 215         }
 216     }
 217
 218     # Read non predefined sections
 219     my $param;
 220     if ($cfg->SectionExists('ldap')){
 221                 foreach $param ($cfg->Parameters('ldap')){
 222                         push (@ldap_cfg, "$param ".$cfg->val('ldap', $param));
 223                 }
 224     }
 225     if ($cfg->SectionExists('pam_ldap')){
 226                 foreach $param ($cfg->Parameters('pam_ldap')){
 227                         push (@pam_cfg, "$param ".$cfg->val('pam_ldap', $param));
 228                 }
 229     }
 230     if ($cfg->SectionExists('nss_ldap')){
 231                 foreach $param ($cfg->Parameters('nss_ldap')){
 232                         push (@nss_cfg, "$param ".$cfg->val('nss_ldap', $param));
 233                 }
 234     }
 235     if ($cfg->SectionExists('goto')){
 236         $goto_admin= $cfg->val('goto', 'terminal_admin');
 237         $goto_secret= $cfg->val('goto', 'terminal_secret');
 238     } else {
 239         $goto_admin= undef;
 240         $goto_secret= undef;
 241     }
 242
 243 }
 244
 245
 246 #===  FUNCTION  ================================================================
 247 #         NAME:  get_mac
 248 #   PARAMETERS:  interface name (i.e. eth0)
 249 #      RETURNS:  (mac address)
 250 #  DESCRIPTION:  Uses ioctl to get mac address directly from system.
 251 #===============================================================================
 252 sub get_mac {
 253         my $ifreq= shift;
 254         my $result;
 255         if ($ifreq && length($ifreq) > 0) {
 256                 if($ifreq eq "all") {
 257                         $result = "00:00:00:00:00:00";
 258                 } else {
 259                         my $SIOCGIFHWADDR= 0x8927;     # man 2 ioctl_list
 260
 261                         # A configured MAC Address should always override a guessed value
 262                         if ($main::server_mac_address and length($main::server_mac_address) > 0) {
 263                                 $result= $main::server_mac_address;
 264                         }
 265
 266                         socket SOCKET, PF_INET, SOCK_DGRAM, getprotobyname('ip')
 267                                 or die "socket: $!";
 268
 269                         if(ioctl SOCKET, $SIOCGIFHWADDR, $ifreq) {
 270                                 my ($if, $mac)= unpack 'h36 H12', $ifreq;
 271
 272                                 if (length($mac) > 0) {
 273                                         $mac=~ m/^([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])$/;
 274                                         $mac= sprintf("%s:%s:%s:%s:%s:%s", $1, $2, $3, $4, $5, $6);
 275                                         $result = $mac;
 276                                 }
 277                         }
 278                 }
 279         }
 280         return $result;
 281 }
 282
 283
 284 #===  FUNCTION  ================================================================
 285 #         NAME:  process_incoming_msg
 286 #   PARAMETERS:  crypted_msg - string - incoming crypted message
 287 #      RETURNS:  nothing
 288 #  DESCRIPTION:  handels the proceeded distribution to the appropriated functions
 289 #===============================================================================
 290 sub process_incoming_msg {
 291     my ($msg, $msg_hash, $session_id) = @_ ;
 292     my $error = 0;
 293     my $host_name;
 294     my $host_key;
 295     my @out_msg_l = ("nohandler");
 296     my $sql_events;
 297
 298     # process incoming msg
 299     my $header = @{$msg_hash->{header}}[0];
 300     my $source = @{$msg_hash->{source}}[0];
 301     my @target_l = @{$msg_hash->{target}};
 302
 303     # skip PREFIX
 304     $header =~ s/^CLMSG_//;
 305
 306     &main::daemon_log("$session_id DEBUG: ClientPackages: msg to process: $header", 7);
 307
 308     if( 0 == length @target_l){
 309         &main::daemon_log("$session_id ERROR: no target specified for msg $header", 1);
 310         $error++;
 311     } elsif( 1 == length @target_l) {
 312         my $target = $target_l[0];
 313                 if(&server_matches($target)) {
 314             if ($header eq 'new_key') {
 315                 @out_msg_l = &new_key($msg_hash)
 316             } elsif ($header eq 'here_i_am') {
 317                 @out_msg_l = &here_i_am($msg, $msg_hash, $session_id)
 318             } else {
 319                 # a event exists with the header as name
 320                 if( exists $event2module_hash->{$header} ) {
 321                     &main::daemon_log("$session_id INFO: found event '$header' at event-module '".$event2module_hash->{$header}."'", 5);
 322                     no strict 'refs';
 323                     @out_msg_l = &{$event2module_hash->{$header}."::$header"}($msg, $msg_hash, $session_id);
 324
 325                 # if no event handler is implemented
 326                 } else {
 327                     $sql_events = "SELECT * FROM $main::known_clients_tn WHERE ( (macaddress LIKE '$source') OR (hostname='$source') )";
 328                     my $res = $main::known_clients_db->select_dbentry( $sql_events );
 329                     my $l = keys(%$res);
 330
 331                     # set error if no or more than 1 hits are found for sql query
 332                     if ( $l != 1) {
 333                         @out_msg_l = ('knownclienterror');
 334
 335                     # found exact 1 hit in db
 336                     } else {
 337                         my $client_events = $res->{'1'}->{'events'};
 338
 339                         # client is registered for this event, deliver this message to client
 340                         $header =~ s/^answer_//;
 341                         if ($client_events =~ /,$header,/) {
 342                             # answer message finally arrived destination server, so forward messages to GOsa
 343                             if ($target eq $main::server_address) {
 344                                 $msg =~ s/<header>answer_/<header>/;
 345                                 $msg =~ s/<target>\S+<\/target>/<target>GOSA<\/target>/;
 346                             }
 347                             @out_msg_l = ( $msg );
 348
 349                         # client is not registered for this event, set error
 350                         } else {
 351                             @out_msg_l = ('noeventerror');
 352                         }
 353                     }
 354                 }
 355             }
 356
 357             # if delivery not possible raise error and return
 358             if( not defined $out_msg_l[0] ) {
 359                 @out_msg_l = ();
 360             } elsif( $out_msg_l[0] eq 'nohandler') {
 361                 &main::daemon_log("$session_id ERROR: ClientPackages: no event handler or core function defined for '$header'", 1);
 362                 @out_msg_l = ();
 363             }  elsif ($out_msg_l[0] eq 'knownclienterror') {
 364                 &main::daemon_log("$session_id ERROR: no or more than 1 hits are found at known_clients_db with sql query: '$sql_events'", 1);
 365                 &main::daemon_log("$session_id ERROR: processing is aborted and message will not be forwarded", 1);
 366                 @out_msg_l = ();
 367             } elsif ($out_msg_l[0] eq 'noeventerror') {
 368                 &main::daemon_log("$session_id ERROR: client '$target' is not registered for event '$header', processing is aborted", 1);
 369                 @out_msg_l = ();
 370             }
 371         } else {
 372                         &main::daemon_log("INFO: msg is not for gosa-si-server '$server_address', deliver it to target '$target'", 5);
 373                         push(@out_msg_l, $msg);
 374                 }
 375     }
 376
 377     return \@out_msg_l;
 378 }
 379
 380
 381 #===  FUNCTION  ================================================================
 382 #         NAME:  new_passwd
 383 #   PARAMETERS:  msg_hash - ref - hash from function create_xml_hash
 384 #      RETURNS:  nothing
 385 #  DESCRIPTION:  process this incoming message
 386 #===============================================================================
 387 sub new_key {
 388     my ($msg_hash) = @_;
 389     my @out_msg_l;
 390
 391     my $header = @{$msg_hash->{header}}[0];
 392     my $source_name = @{$msg_hash->{source}}[0];
 393     my $source_key = @{$msg_hash->{new_key}}[0];
 394     my $query_res;
 395
 396     # check known_clients_db
 397     my $sql_statement = "SELECT * FROM known_clients WHERE hostname='$source_name'";
 398     $query_res = $main::known_clients_db->select_dbentry( $sql_statement );
 399     if( 1 == keys %{$query_res} ) {
 400         my $act_time = &get_time;
 401         my $sql_statement= "UPDATE known_clients ".
 402             "SET hostkey='$source_key', timestamp='$act_time' ".
 403             "WHERE hostname='$source_name'";
 404         my $res = $main::known_clients_db->update_dbentry( $sql_statement );
 405         my $hash = &create_xml_hash("confirm_new_key", $server_address, $source_name);
 406         my $out_msg = &create_xml_string($hash);
 407         push(@out_msg_l, $out_msg);
 408     }
 409
 410     # only do if host still not found
 411     if( 0 == @out_msg_l ) {
 412         # check known_server_db
 413         $sql_statement = "SELECT * FROM known_server WHERE hostname='$source_name'";
 414         $query_res = $main::known_server_db->select_dbentry( $sql_statement );
 415         if( 1 == keys %{$query_res} ) {
 416             my $act_time = &get_time;
 417             my $sql_statement= "UPDATE known_server ".
 418                 "SET hostkey='$source_key', timestamp='$act_time' ".
 419                 "WHERE hostname='$source_name'";
 420             my $res = $main::known_server_db->update_dbentry( $sql_statement );
 421
 422             my $hash = &create_xml_hash("confirm_new_key", $server_address, $source_name);
 423             my $out_msg = &create_xml_string($hash);
 424             push(@out_msg_l, $out_msg);
 425         }
 426     }
 427
 428     return @out_msg_l;
 429 }
 430
 431
 432 #===  FUNCTION  ================================================================
 433 #         NAME:  here_i_am
 434 #   PARAMETERS:  msg_hash - hash - hash from function create_xml_hash
 435 #      RETURNS:  nothing
 436 #  DESCRIPTION:  process this incoming message
 437 #===============================================================================
 438 sub here_i_am {
 439     my ($msg, $msg_hash, $session_id) = @_;
 440     my @out_msg_l;
 441     my $out_hash;
 442     my $source = @{$msg_hash->{source}}[0];
 443     my $mac_address = @{$msg_hash->{mac_address}}[0];
 444         my $gotoHardwareChecksum = @{$msg_hash->{gotoHardwareChecksum}}[0];
 445     my $client_status = @{$msg_hash->{client_status}}[0];
 446     my $client_revision = @{$msg_hash->{client_revision}}[0];
 447     my $key_lifetime = @{$msg_hash->{key_lifetime}}[0];
 448
 449     # Move forced hostname to heap - if used
 450     #FIXME: move to some global POE namespace - please
 451     if ( defined($msg_hash->{'force-hostname'}[0]) &&
 452        length($msg_hash->{'force-hostname'}[0]) > 0){
 453     #      $heap->{force-hostname}->{$mac_address}= $msg_hash->{'force-hostname'}[0];
 454             open (TFILE, ">/var/tmp/$mac_address");
 455             print TFILE $msg_hash->{'force-hostname'}[0];
 456             close (TFILE);
 457     } else {
 458     #      $heap->{force-hostname}->{$mac_address}= undef;
 459         if ( -e "/var/tmp/$mac_address") {
 460                 unlink("/var/tmp/$mac_address")
 461         };
 462     }
 463
 464     # number of known clients
 465     my $nu_clients= $main::known_clients_db->count_dbentries('known_clients');
 466
 467     # check wether client address or mac address is already known
 468     my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$source'";
 469     my $db_res= $main::known_clients_db->select_dbentry( $sql_statement );
 470
 471     if ( 1 == keys %{$db_res} ) {
 472         &main::daemon_log("$session_id WARNING: $source is already known as a client", 1);
 473         &main::daemon_log("$session_id WARNING: values for $source are being overwritten", 1);
 474         $nu_clients --;
 475     }
 476
 477     # number of current active clients
 478     my $act_nu_clients = $nu_clients;
 479
 480     &main::daemon_log("$session_id INFO: number of current active clients: $act_nu_clients", 5);
 481     &main::daemon_log("$session_id INFO: number of maximal allowed clients: $max_clients", 5);
 482
 483     if($max_clients <= $act_nu_clients) {
 484         my $out_hash = &create_xml_hash("denied", $server_address, $source);
 485         &add_content2xml_hash($out_hash, "denied", "I_cannot_take_any_more_clients!");
 486         my $passwd = @{$msg_hash->{new_passwd}}[0];
 487         &send_msg_hash2address($out_hash, $source, $passwd);
 488         return;
 489     }
 490
 491     # new client accepted
 492     my $new_passwd = @{$msg_hash->{new_passwd}}[0];
 493
 494     # add entry to known_clients_db
 495     my $events = @{$msg_hash->{events}}[0];
 496     my $act_timestamp = &get_time;
 497     my $res = $main::known_clients_db->add_dbentry( {table=>'known_clients',
 498                                                 primkey=>['hostname'],
 499                                                 hostname=>$source,
 500                                                 events=>$events,
 501                                                 macaddress=>$mac_address,
 502                                                 status=>'registered',
 503                                                 hostkey=>$new_passwd,
 504                                                 timestamp=>$act_timestamp,
 505                                                 keylifetime=>$key_lifetime,
 506                                                 } );
 507
 508     if ($res != 0)  {
 509         &main::daemon_log("$session_id ERROR: cannot add entry to known_clients: $res");
 510         return;
 511     }
 512
 513     # return acknowledgement to client
 514     $out_hash = &create_xml_hash("registered", $server_address, $source);
 515
 516
 517     # give the new client his ldap config
 518     # Workaround: Send within the registration response, if the client will get an ldap config later
 519         my $new_ldap_config_out = &new_ldap_config($source, $session_id);
 520         if($new_ldap_config_out && (!($new_ldap_config_out =~ /error/))) {
 521                 &add_content2xml_hash($out_hash, "ldap_available", "true");
 522         } elsif($new_ldap_config_out && $new_ldap_config_out =~ /error/){
 523                 &add_content2xml_hash($out_hash, "error", $new_ldap_config_out);
 524
 525                 my $sql_statement = "UPDATE $main::job_queue_tn ".
 526                 "SET status='error', result='$new_ldap_config_out' ".
 527                 "WHERE status='processing' AND macaddress LIKE '$mac_address'";
 528                 my $res = $main::job_db->update_dbentry($sql_statement);
 529                 &main::daemon_log("$session_id DEBUG: $sql_statement RESULT: $res", 7);
 530         }
 531     my $register_out = &create_xml_string($out_hash);
 532     push(@out_msg_l, $register_out);
 533
 534     # Really send the ldap config
 535     if( $new_ldap_config_out && (!($new_ldap_config_out =~ /error/))) {
 536             push(@out_msg_l, $new_ldap_config_out);
 537     }
 538
 539     # Send client hardware configuration
 540         my $hardware_config_out = &hardware_config($msg, $msg_hash, $session_id);
 541         if( $hardware_config_out ) {
 542                 push(@out_msg_l, $hardware_config_out);
 543         }
 544
 545     # Send client ntp server
 546     my $ntp_config_out = &new_ntp_config($mac_address, $session_id);
 547     if ($ntp_config_out) {
 548         push(@out_msg_l, $ntp_config_out);
 549     }
 550
 551     # Send client syslog server
 552     my $syslog_config_out = &new_syslog_config($mac_address, $session_id);
 553     if ($syslog_config_out) {
 554         push(@out_msg_l, $syslog_config_out);
 555     }
 556
 557     # notify registered client to all other server
 558     my %mydata = ( 'client' => $source, 'macaddress' => $mac_address);
 559     my $mymsg = &build_msg('new_foreign_client', $main::server_address, "KNOWN_SERVER", \%mydata);
 560     push(@out_msg_l, $mymsg);
 561
 562     &main::daemon_log("$session_id INFO: register client $source ($mac_address)", 5);
 563     &main::daemon_log("$session_id INFO: client version: $client_status - $client_revision", 5);
 564     return @out_msg_l;
 565 }
 566
 567
 568 #===  FUNCTION  ================================================================
 569 #         NAME:  who_has
 570 #   PARAMETERS:  msg_hash - hash - hash from function create_xml_hash
 571 #      RETURNS:  nothing
 572 #  DESCRIPTION:  process this incoming message
 573 #===============================================================================
 574 sub who_has {
 575     my ($msg_hash) = @_ ;
 576     my @out_msg_l;
 577
 578     # what is your search pattern
 579     my $search_pattern = @{$msg_hash->{who_has}}[0];
 580     my $search_element = @{$msg_hash->{$search_pattern}}[0];
 581     &main::daemon_log("who_has-msg looking for $search_pattern $search_element", 7);
 582
 583     # scanning known_clients for search_pattern
 584     my @host_addresses = keys %$main::known_clients;
 585     my $known_clients_entries = length @host_addresses;
 586     my $host_address;
 587     foreach my $host (@host_addresses) {
 588         my $client_element = $main::known_clients->{$host}->{$search_pattern};
 589         if ($search_element eq $client_element) {
 590             $host_address = $host;
 591             last;
 592         }
 593     }
 594
 595     # search was successful
 596     if (defined $host_address) {
 597         my $source = @{$msg_hash->{source}}[0];
 598         my $out_hash = &create_xml_hash("who_has_i_do", $server_address, $source, "mac_address");
 599         &add_content2xml_hash($out_hash, "mac_address", $search_element);
 600         my $out_msg = &create_xml_string($out_hash);
 601         push(@out_msg_l, $out_msg);
 602     }
 603     return @out_msg_l;
 604 }
 605
 606
 607 sub who_has_i_do {
 608     my ($msg_hash) = @_ ;
 609     my $header = @{$msg_hash->{header}}[0];
 610     my $source = @{$msg_hash->{source}}[0];
 611     my $search_param = @{$msg_hash->{$header}}[0];
 612     my $search_value = @{$msg_hash->{$search_param}}[0];
 613     print "\ngot msg $header:\nserver $source has client with $search_param $search_value\n";
 614 }
 615
 616
 617 sub new_syslog_config {
 618     my ($mac_address, $session_id) = @_;
 619     my $syslog_msg;
 620     my $ldap_handle=&main::get_ldap_handle();
 621
 622         # Perform search
 623     my $ldap_res = $ldap_handle->search( base   => $ldap_base,
 624                 scope  => 'sub',
 625                 attrs => ['gotoSyslogServer'],
 626                 filter => "(&(objectClass=GOhard)(macaddress=$mac_address))");
 627         if($ldap_res->code) {
 628                 &main::daemon_log("$session_id ".$ldap_res->error, 1);
 629         &main::release_ldap_handle($ldap_handle);
 630                 return;
 631         }
 632
 633         # Sanity check
 634         if ($ldap_res->count != 1) {
 635                 &main::daemon_log("$session_id ERROR: client with mac address $mac_address not found/unique/active - not sending syslog config".
 636                 "\n\tbase: $ldap_base".
 637                 "\n\tscope: sub".
 638                 "\n\tattrs: gotoSyslogServer".
 639                 "\n\tfilter: (&(objectClass=GOhard)(macaddress=$mac_address))", 1);
 640         &main::release_ldap_handle($ldap_handle);
 641                 return;
 642         }
 643
 644         my $entry= $ldap_res->entry(0);
 645     my $filter_dn = &Net::LDAP::Util::escape_filter_value($entry->dn);
 646         my $syslog_server = $entry->get_value("gotoSyslogServer");
 647
 648     # If no syslog server is specified at host, just have a look at the object group of the host
 649     # Perform object group search
 650     if (not defined $syslog_server) {
 651         my $ldap_res = $ldap_handle->search( base   => $ldap_base,
 652                 scope  => 'sub',
 653                 attrs => ['gotoSyslogServer'],
 654                 filter => "(&(objectClass=gosaGroupOfNames)(member=$filter_dn))");
 655         if($ldap_res->code) {
 656             &main::daemon_log("$session_id ".$ldap_res->error, 1);
 657             &main::release_ldap_handle($ldap_handle);
 658             return;
 659         }
 660
 661         # Sanity check
 662         if ($ldap_res->count != 1) {
 663             &main::daemon_log("$session_id ERROR: client with mac address $mac_address not found/unique/active - not sending syslog config".
 664                     "\n\tbase: $ldap_base".
 665                     "\n\tscope: sub".
 666                     "\n\tattrs: gotoSyslogServer".
 667                     "\n\tfilter: (&(objectClass=gosaGroupOfNames)(member=$filter_dn))", 1);
 668             &main::release_ldap_handle($ldap_handle);
 669             return;
 670         }
 671
 672         my $entry= $ldap_res->entry(0);
 673         $syslog_server= $entry->get_value("gotoSyslogServer");
 674     }
 675
 676     # Return if no syslog server specified
 677     if (not defined $syslog_server) {
 678         &main::daemon_log("$session_id WARNING: no syslog server specified for this host '$mac_address'", 3);
 679         &main::release_ldap_handle($ldap_handle);
 680         return;
 681     }
 682
 683
 684     # Add syslog server to 'syslog_config' message
 685     my $syslog_msg_hash = &create_xml_hash("new_syslog_config", $server_address, $mac_address);
 686     &add_content2xml_hash($syslog_msg_hash, "server", $syslog_server);
 687
 688     &main::release_ldap_handle($ldap_handle);
 689     return &create_xml_string($syslog_msg_hash);
 690 }
 691
 692
 693 sub new_ntp_config {
 694     my ($address, $session_id) = @_;
 695     my $ntp_msg;
 696     my $ldap_handle=&main::get_ldap_handle();
 697
 698         # Perform search
 699     my $ldap_res = $ldap_handle->search( base   => $ldap_base,
 700                 scope  => 'sub',
 701                 attrs => ['gotoNtpServer'],
 702                 filter => "(&(objectClass=GOhard)(macaddress=$address))");
 703         if($ldap_res->code) {
 704                 &main::daemon_log("$session_id ".$ldap_res->error, 1);
 705         &main::release_ldap_handle($ldap_handle);
 706                 return;
 707         }
 708
 709         # Sanity check
 710         if ($ldap_res->count != 1) {
 711                 &main::daemon_log("$session_id ERROR: client with mac address $address not found/unique/active - not sending ntp config".
 712                 "\n\tbase: $ldap_base".
 713                 "\n\tscope: sub".
 714                 "\n\tattrs: gotoNtpServer".
 715                 "\n\tfilter: (&(objectClass=GOhard)(macaddress=$address))", 1);
 716         &main::release_ldap_handle($ldap_handle);
 717                 return;
 718         }
 719
 720         my $entry= $ldap_res->entry(0);
 721     my $filter_dn = &Net::LDAP::Util::escape_filter_value($entry->dn);
 722         my @ntp_servers= $entry->get_value("gotoNtpServer");
 723
 724     # If no ntp server is specified at host, just have a look at the object group of the host
 725     # Perform object group search
 726     if ((not @ntp_servers) || (@ntp_servers == 0)) {
 727         my $ldap_res = $ldap_handle->search( base   => $ldap_base,
 728                 scope  => 'sub',
 729                 attrs => ['gotoNtpServer'],
 730                 filter => "(&(objectClass=gosaGroupOfNames)(member=$filter_dn))");
 731         if($ldap_res->code) {
 732             &main::daemon_log("$session_id ".$ldap_res->error, 1);
 733             &main::release_ldap_handle($ldap_handle);
 734             return;
 735         }
 736
 737         # Sanity check
 738         if ($ldap_res->count != 1) {
 739             &main::daemon_log("$session_id ERROR: client with mac address $address not found/unique/active - not sending ntp config".
 740                     "\n\tbase: $ldap_base".
 741                     "\n\tscope: sub".
 742                     "\n\tattrs: gotoNtpServer".
 743                     "\n\tfilter: (&(objectClass=gosaGroupOfNames)(member=$filter_dn))", 1);
 744             &main::release_ldap_handle($ldap_handle);
 745             return;
 746         }
 747
 748         my $entry= $ldap_res->entry(0);
 749         @ntp_servers= $entry->get_value("gotoNtpServer");
 750     }
 751
 752     # Return if no ntp server specified
 753     if ((not @ntp_servers) || (@ntp_servers == 0)) {
 754         &main::daemon_log("$session_id WARNING: no ntp server specified for this host '$address'", 3);
 755         &main::release_ldap_handle($ldap_handle);
 756         return;
 757     }
 758
 759     # Add each ntp server to 'ntp_config' message
 760     my $ntp_msg_hash = &create_xml_hash("new_ntp_config", $server_address, $address);
 761     foreach my $ntp_server (@ntp_servers) {
 762         &add_content2xml_hash($ntp_msg_hash, "server", $ntp_server);
 763     }
 764
 765     &main::release_ldap_handle($ldap_handle);
 766     return &create_xml_string($ntp_msg_hash);
 767 }
 768
 769
 770 #===  FUNCTION  ================================================================
 771 #         NAME:  new_ldap_config
 772 #   PARAMETERS:  address - string - ip address and port of a host
 773 #      RETURNS:  gosa-si conform message
 774 #  DESCRIPTION:  send to address the ldap configuration found for dn gotoLdapServer
 775 #===============================================================================
 776 sub new_ldap_config {
 777         my ($address, $session_id) = @_ ;
 778
 779         my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$address' OR macaddress LIKE '$address'";
 780         my $res = $main::known_clients_db->select_dbentry( $sql_statement );
 781
 782         # check hit
 783         my $hit_counter = keys %{$res};
 784         if( not $hit_counter == 1 ) {
 785                 &main::daemon_log("$session_id ERROR: more or no hit found in known_clients_db by query '$sql_statement'", 1);
 786         return;
 787         }
 788
 789     $address = $res->{1}->{hostname};
 790         my $macaddress = $res->{1}->{macaddress};
 791         my $hostkey = $res->{1}->{hostkey};
 792
 793         if (not defined $macaddress) {
 794                 &main::daemon_log("$session_id ERROR: no mac address found for client $address", 1);
 795                 return;
 796         }
 797
 798         # Perform search
 799     my $ldap_handle=&main::get_ldap_handle();
 800     $mesg = $ldap_handle->search( base   => $ldap_base,
 801                 scope  => 'sub',
 802                 attrs => ['dn', 'gotoLdapServer', 'gosaUnitTag', 'FAIclass'],
 803                 filter => "(&(objectClass=GOhard)(macaddress=$macaddress))");
 804         if($mesg->code) {
 805                 &main::daemon_log("$session_id ".$mesg->error, 1);
 806         &main::release_ldap_handle($ldap_handle);
 807                 return;
 808         }
 809
 810         # Sanity check
 811         if ($mesg->count != 1) {
 812                 &main::daemon_log("$session_id ERROR: client with mac address $macaddress not found/unique/active - not sending ldap config".
 813                 "\n\tbase: $ldap_base".
 814                 "\n\tscope: sub".
 815                 "\n\tattrs: dn, gotoLdapServer".
 816                 "\n\tfilter: (&(objectClass=GOhard)(macaddress=$macaddress))", 1);
 817         &main::release_ldap_handle($ldap_handle);
 818                 return;
 819         }
 820
 821         my $entry= $mesg->entry(0);
 822         my $filter_dn= &Net::LDAP::Util::escape_filter_value($entry->dn);
 823         my @servers= $entry->get_value("gotoLdapServer");
 824         my $unit_tag= $entry->get_value("gosaUnitTag");
 825         my @ldap_uris;
 826         my $server;
 827         my $base;
 828         my $release;
 829     my $dn= $entry->dn;
 830
 831         # Fill release if available
 832         my $FAIclass= $entry->get_value("FAIclass");
 833         if (defined $FAIclass && $FAIclass =~ /^.* :([A-Za-z0-9\/.]+).*$/) {
 834                 $release= $1;
 835         }
 836
 837         # Do we need to look at an object class?
 838         if (not @servers){
 839                 $mesg = $ldap_handle->search( base   => $ldap_base,
 840                         scope  => 'sub',
 841                         attrs => ['dn', 'gotoLdapServer', 'FAIclass'],
 842                         filter => "(&(objectClass=gosaGroupOfNames)(member=$filter_dn))");
 843                 if($mesg->code) {
 844                         &main::daemon_log("$session_id ERROR: unable to search for '(&(objectClass=gosaGroupOfNames)(member=$filter_dn))': ".$mesg->error, 1);
 845             &main::release_ldap_handle($ldap_handle);
 846                         return;
 847                 }
 848
 849                 # Sanity check
 850         if ($mesg->count != 1) {
 851             &main::daemon_log("$session_id ERROR: client with mac address $macaddress not found/unique/active - not sending ldap config".
 852                     "\n\tbase: $ldap_base".
 853                     "\n\tscope: sub".
 854                     "\n\tattrs: dn, gotoLdapServer, FAIclass".
 855                     "\n\tfilter: (&(objectClass=gosaGroupOfNames)(member=$filter_dn))", 1);
 856             &main::release_ldap_handle($ldap_handle);
 857             return;
 858         }
 859
 860                 $entry= $mesg->entry(0);
 861                 $dn= $entry->dn;
 862                 @servers= $entry->get_value("gotoLdapServer");
 863
 864                 if (not defined $release){
 865                         $FAIclass= $entry->get_value("FAIclass");
 866                         if (defined $FAIclass && $FAIclass =~ /^.* :([A-Za-z0-9\/.]+).*$/) {
 867                                 $release= $1;
 868                         }
 869                 }
 870         }
 871
 872         @servers= sort (@servers);
 873
 874     # complain if no ldap information found
 875     if (@servers == 0) {
 876         &main::daemon_log("$session_id ERROR: no gotoLdapServer information for LDAP entry '$dn'", 1);
 877     }
 878
 879         foreach $server (@servers){
 880                 # Conversation for backward compatibility
 881                 if (not $server =~ /^\d+:[^:]+:ldap[^:]*:\/\// ) {
 882                     if ($server =~ /^([^:]+):([^:]+)$/ ) {
 883                       $server= "1:dummy:ldap://$1/$2";
 884                     } elsif ($server =~ /^(\d+):([^:]+):(.*)$/ ) {
 885                       $server= "$1:dummy:ldap://$2/$3";
 886                     }
 887                 }
 888
 889                 $base= $server;
 890                 $server =~ s%^[^:]+:[^:]+:(ldap.*://[^/]+)/.*$%$1%;
 891                 $base =~ s%^[^:]+:[^:]+:ldap.*://[^/]+/(.*)$%$1%;
 892                 push (@ldap_uris, $server);
 893         }
 894
 895         # Assemble data package
 896         my %data = ( 'ldap_uri'  => \@ldap_uris, 'ldap_base' => $base,
 897                 'ldap_cfg' => \@ldap_cfg, 'pam_cfg' => \@pam_cfg,'nss_cfg' => \@nss_cfg );
 898         if (defined $release){
 899                 $data{'release'}= $release;
 900         }
 901
 902         # Need to append GOto settings?
 903         if (defined $goto_admin and defined $goto_secret){
 904                 $data{'goto_admin'}= $goto_admin;
 905                 $data{'goto_secret'}= $goto_secret;
 906         }
 907
 908         # Append unit tag if needed
 909         if (defined $unit_tag){
 910
 911                 # Find admin base and department name
 912                 $mesg = $ldap_handle->search( base   => $ldap_base,
 913                         scope  => 'sub',
 914                         attrs => ['dn', 'ou'],
 915                         filter => "(&(objectClass=gosaAdministrativeUnit)(gosaUnitTag=$unit_tag))");
 916                 #$mesg->code && die $mesg->error;
 917                 if($mesg->code) {
 918                         &main::daemon_log($mesg->error, 1);
 919             &main::release_ldap_handle($ldap_handle);
 920                         return "error-unit-tag-count-0";
 921                 }
 922
 923                 # Sanity check
 924                 if ($mesg->count != 1) {
 925                         &main::daemon_log("WARNING: cannot find administrative unit for client with tag $unit_tag", 1);
 926             &main::release_ldap_handle($ldap_handle);
 927                         return "error-unit-tag-count-".$mesg->count;
 928                 }
 929
 930                 $entry= $mesg->entry(0);
 931                 $data{'admin_base'}= $entry->dn;
 932                 $data{'department'}= $entry->get_value("ou");
 933
 934                 # Append unit Tag
 935                 $data{'unit_tag'}= $unit_tag;
 936         }
 937     &main::release_ldap_handle($ldap_handle);
 938
 939         # Send information
 940         return &build_msg("new_ldap_config", $server_address, $address, \%data);
 941 }
 942
 943
 944 #===  FUNCTION  ================================================================
 945 #         NAME:  hardware_config
 946 #   PARAMETERS:  address - string - ip address and port of a host
 947 #      RETURNS:
 948 #  DESCRIPTION:
 949 #===============================================================================
 950 sub hardware_config {
 951         my ($msg, $msg_hash, $session_id) = @_ ;
 952         my $address = @{$msg_hash->{source}}[0];
 953         my $header = @{$msg_hash->{header}}[0];
 954         my $gotoHardwareChecksum = @{$msg_hash->{gotoHardwareChecksum}}[0];
 955
 956         my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$address'";
 957         my $res = $main::known_clients_db->select_dbentry( $sql_statement );
 958
 959         # check hit
 960         my $hit_counter = keys %{$res};
 961         if( not $hit_counter == 1 ) {
 962                 &main::daemon_log("$session_id ERROR: more or no hit found in known_clients_db by query by '$address'", 1);
 963         }
 964         my $macaddress = $res->{1}->{macaddress};
 965         my $hostkey = $res->{1}->{hostkey};
 966
 967         if (not defined $macaddress) {
 968                 &main::daemon_log("$session_id ERROR: no mac address found for client $address", 1);
 969                 return;
 970         }
 971
 972         # Perform search
 973     my $ldap_handle=&main::get_ldap_handle();
 974         $mesg = $ldap_handle->search(
 975                 base   => $ldap_base,
 976                 scope  => 'sub',
 977                 filter => "(&(objectClass=GOhard)(|(macAddress=$macaddress)(dhcpHWaddress=ethernet $macaddress)))"
 978         );
 979
 980         if($mesg->count() == 0) {
 981                 &main::daemon_log("Host was not found in LDAP!", 1);
 982
 983                 # set status = hardware_detection at jobqueue if entry exists
 984                 # TODO
 985                 # resolve plain name for host
 986                 my $func_dic = {table=>$main::job_queue_tn,
 987                                 primkey=>['macaddress', 'headertag'],
 988                                 timestamp=>&get_time,
 989                                 status=>'processing',
 990                                 result=>'none',
 991                                 progress=>'hardware-detection',
 992                                 headertag=>'trigger_action_reinstall',
 993                                 targettag=>$address,
 994                                 xmlmessage=>'none',
 995                                 macaddress=>$macaddress,
 996                                 plainname=>'none',
 997                 siserver=>'localhost',
 998                 modified=>'1',
 999                 };
1000                 my $hd_res = $main::job_db->add_dbentry($func_dic);
1001                 &main::daemon_log("$session_id INFO: add '$macaddress' to job queue as an installing job", 5);
1002
1003         } else {
1004                 my $entry= $mesg->entry(0);
1005                 if (defined($entry->get_value("gotoHardwareChecksum"))) {
1006                         if (! $entry->get_value("gotoHardwareChecksum") eq $gotoHardwareChecksum) {
1007                                 $entry->replace(gotoHardwareChecksum => $gotoHardwareChecksum);
1008                                 if($entry->update($ldap_handle)) {
1009                                         &main::daemon_log("$session_id INFO: Hardware changed! Detection triggered.", 5);
1010                                 }
1011                         } else {
1012                                 # Nothing to do
1013                 &main::release_ldap_handle($ldap_handle);
1014                                 return;
1015                         }
1016                 }
1017         }
1018
1019         # Assemble data package
1020         my %data = ();
1021
1022         # Need to append GOto settings?
1023         if (defined $goto_admin and defined $goto_secret){
1024                 $data{'goto_admin'}= $goto_admin;
1025                 $data{'goto_secret'}= $goto_secret;
1026         }
1027
1028     &main::release_ldap_handle($ldap_handle);
1029
1030         # Send information
1031         return &build_msg("detect_hardware", $server_address, $address, \%data);
1032 }
1033
1034 sub server_matches {
1035         my $target = shift;
1036         my $target_ip = ($1) if $target =~ /^([0-9\.]*?):.*$/;
1037         if(!defined($target_ip) or length($target_ip) == 0) {
1038                 return;
1039         }
1040
1041         my $result = 0;
1042
1043         if($server_ip eq $target_ip) {
1044                 $result= 1;
1045         } elsif ($target_ip eq "0.0.0.0") {
1046                 $result= 1;
1047         } elsif ($server_ip eq "0.0.0.0") {
1048                 if ($target_ip eq "127.0.0.1") {
1049                         $result= 1;
1050                 } else {
1051                         my $PROC_NET_ROUTE= ('/proc/net/route');
1052
1053                         open(PROC_NET_ROUTE, "<$PROC_NET_ROUTE")
1054                                 or die "Could not open $PROC_NET_ROUTE";
1055
1056                         my @ifs = <PROC_NET_ROUTE>;
1057
1058                         close(PROC_NET_ROUTE);
1059
1060                         # Eat header line
1061                         shift @ifs;
1062                         chomp @ifs;
1063                         foreach my $line(@ifs) {
1064                                 my ($Iface,$Destination,$Gateway,$Flags,$RefCnt,$Use,$Metric,$Mask,$MTU,$Window,$IRTT)=split(/\s/, $line);
1065                                 my $destination;
1066                                 my $mask;
1067                                 my ($d,$c,$b,$a)=unpack('a2 a2 a2 a2', $Destination);
1068                                 $destination= sprintf("%d.%d.%d.%d", hex($a), hex($b), hex($c), hex($d));
1069                                 ($d,$c,$b,$a)=unpack('a2 a2 a2 a2', $Mask);
1070                                 $mask= sprintf("%d.%d.%d.%d", hex($a), hex($b), hex($c), hex($d));
1071                                 if(new NetAddr::IP($target_ip)->within(new NetAddr::IP($destination, $mask))) {
1072                                         # destination matches route, save mac and exit
1073                                         $result= 1;
1074                                         last;
1075                                 }
1076                         }
1077                 }
1078         } else {
1079                 &main::daemon_log("Target ip $target_ip does not match Server ip $server_ip",1);
1080         }
1081
1082         return $result;
1083 }
1084
1085 # vim:ts=4:shiftwidth:expandtab
1086 1;