Code

debug modus for DBmysql.pm
[gosa.git] / gosa-si / gosa-si-server
index cb598734b93d1dedaa050185dafa7c9c2ff0bf94..92b803c75068938f059cb1e8ce8f1f90322a0914 100755 (executable)
@@ -48,13 +48,12 @@ use File::Basename;
 use File::Find;
 use File::Copy;
 use File::Path;
-use GOSA::DBsqlite;
+use GOSA::DBmysql;
 use GOSA::GosaSupportDaemon;
 use POE qw(Component::Server::TCP Wheel::Run Filter::Reference);
 use Net::LDAP;
 use Net::LDAP::Util qw(:escape);
 use Time::HiRes qw( usleep);
-use DateTime;
 
 my $modules_path = "/usr/lib/gosa-si/modules";
 use lib "/usr/lib/gosa-si/modules";
@@ -71,7 +70,6 @@ my ($foreground, $ping_timeout);
 my ($server);
 my ($gosa_server, $job_queue_timeout, $job_queue_loop_delay);
 my ($messaging_db_loop_delay);
-my ($known_modules);
 my ($procid, $pid);
 my ($arp_fifo);
 my ($xml);
@@ -80,15 +78,17 @@ my $max_clients;
 my %repo_files=();
 my $repo_path;
 my %repo_dirs=();
-# variables declared in config file are always set to 'our'
+
+# Variables declared in config file are always set to 'our'
 our (%cfg_defaults, $log_file, $pid_file, 
-    $server_ip, $server_port, $ClientPackages_key, 
+    $server_ip, $server_port, $ClientPackages_key, $dns_lookup,
     $arp_activ, $gosa_unit_tag,
     $GosaPackages_key, $gosa_timeout,
     $foreign_server_string, $server_domain, $ServerPackages_key, $foreign_servers_register_delay,
     $wake_on_lan_passwd, $job_synchronization, $modified_jobs_loop_delay,
     $arp_enabled, $arp_interface,
     $opsi_enabled, $opsi_server, $opsi_admin, $opsi_password,
+               $new_systems_ou,
 );
 
 # additional variable which should be globaly accessable
@@ -100,6 +100,11 @@ our $verbose;
 our $forground;
 our $cfg_file;
 our ($ldap_uri, $ldap_base, $ldap_admin_dn, $ldap_admin_password, $ldap_server_dn);
+our ($mysql_username, $mysql_password, $mysql_database, $mysql_host);
+our $known_modules;
+our $root_uid;
+our $adm_gid;
+
 
 # specifies the verbosity of the daemon_log
 $verbose = 0 ;
@@ -119,88 +124,88 @@ my $watch_for_new_jobs_in_progress = 0;
 our $incoming_db;
 our $incoming_tn = 'incoming';
 my $incoming_file_name;
-my @incoming_col_names = ("id INTEGER PRIMARY KEY", 
-        "timestamp DEFAULT 'none'", 
-        "headertag DEFAULT 'none'",
-               "targettag DEFAULT 'none'",
-        "xmlmessage DEFAULT 'none'",
-        "module DEFAULT 'none'",
-        "sessionid DEFAULT '0'",
-        );
+my @incoming_col_names = ("id INTEGER PRIMARY KEY auto_increment",
+       "timestamp VARCHAR(14) DEFAULT 'none'", 
+       "headertag VARCHAR(255) DEFAULT 'none'",
+       "targettag VARCHAR(255) DEFAULT 'none'",
+       "xmlmessage TEXT",
+       "module VARCHAR(255) DEFAULT 'none'",
+       "sessionid VARCHAR(255) DEFAULT '0'",
+);
 
 # holds all gosa jobs
 our $job_db;
 our $job_queue_tn = 'jobs';
 my $job_queue_file_name;
-my @job_queue_col_names = ("id INTEGER PRIMARY KEY", 
-               "timestamp DEFAULT 'none'", 
-               "status DEFAULT 'none'", 
-               "result DEFAULT 'none'", 
-               "progress DEFAULT 'none'", 
-        "headertag DEFAULT 'none'", 
-               "targettag DEFAULT 'none'", 
-               "xmlmessage DEFAULT 'none'", 
-               "macaddress DEFAULT 'none'",
-               "plainname DEFAULT 'none'",
-        "siserver DEFAULT 'none'",
-        "modified DEFAULT '0'",
-               );
+my @job_queue_col_names = ("id INTEGER PRIMARY KEY auto_increment",
+       "timestamp VARCHAR(14) DEFAULT 'none'", 
+       "status VARCHAR(255) DEFAULT 'none'", 
+       "result TEXT",
+       "progress VARCHAR(255) DEFAULT 'none'",
+       "headertag VARCHAR(255) DEFAULT 'none'",
+       "targettag VARCHAR(255) DEFAULT 'none'", 
+       "xmlmessage TEXT", 
+       "macaddress VARCHAR(17) DEFAULT 'none'",
+       "plainname VARCHAR(255) DEFAULT 'none'",
+       "siserver VARCHAR(255) DEFAULT 'none'",
+       "modified INTEGER DEFAULT '0'",
+);
 
 # holds all other gosa-si-server
 our $known_server_db;
 our $known_server_tn = "known_server";
 my $known_server_file_name;
-my @known_server_col_names = ("hostname", "status", "hostkey", "timestamp");
+my @known_server_col_names = ("hostname VARCHAR(255)", "macaddress VARCHAR(17)", "status VARCHAR(255)", "hostkey VARCHAR(255)", "loaded_modules TEXT", "timestamp VARCHAR(14)");
 
 # holds all registrated clients
 our $known_clients_db;
 our $known_clients_tn = "known_clients";
 my $known_clients_file_name;
-my @known_clients_col_names = ("hostname", "status", "hostkey", "timestamp", "macaddress", "events", "keylifetime");
+my @known_clients_col_names = ("hostname VARCHAR(255)", "status VARCHAR(255)", "hostkey VARCHAR(255)", "timestamp VARCHAR(14)", "macaddress VARCHAR(17)", "events TEXT", "keylifetime VARCHAR(255)");
 
 # holds all registered clients at a foreign server
 our $foreign_clients_db;
 our $foreign_clients_tn = "foreign_clients"; 
 my $foreign_clients_file_name;
-my @foreign_clients_col_names = ("hostname", "macaddress", "regserver", "timestamp");
+my @foreign_clients_col_names = ("hostname VARCHAR(255)", "macaddress VARCHAR(17)", "regserver VARCHAR(255)", "timestamp VARCHAR(14)");
 
 # holds all logged in user at each client 
 our $login_users_db;
 our $login_users_tn = "login_users";
 my $login_users_file_name;
-my @login_users_col_names = ("client", "user", "timestamp");
+my @login_users_col_names = ("client VARCHAR(255)", "user VARCHAR(255)", "timestamp VARCHAR(14)");
 
 # holds all fai server, the debian release and tag
 our $fai_server_db;
 our $fai_server_tn = "fai_server"; 
 my $fai_server_file_name;
-our @fai_server_col_names = ("timestamp", "server", "release", "sections", "tag"); 
+our @fai_server_col_names = ("timestamp VARCHAR(14)", "server VARCHAR(255)", "fai_release VARCHAR(255)", "sections VARCHAR(255)", "tag VARCHAR(255)"); 
 
 our $fai_release_db;
 our $fai_release_tn = "fai_release"; 
 my $fai_release_file_name;
-our @fai_release_col_names = ("timestamp", "release", "class", "type", "state"); 
+our @fai_release_col_names = ("timestamp VARCHAR(14)", "fai_release VARCHAR(255)", "class VARCHAR(255)", "type VARCHAR(255)", "state VARCHAR(255)"); 
 
 # holds all packages available from different repositories
 our $packages_list_db;
 our $packages_list_tn = "packages_list";
 my $packages_list_file_name;
-our @packages_list_col_names = ("distribution", "package", "version", "section", "description", "template", "timestamp");
+our @packages_list_col_names = ("distribution VARCHAR(255)", "package VARCHAR(255)", "version VARCHAR(255)", "section VARCHAR(255)", "description TEXT", "template LONGBLOB", "timestamp VARCHAR(14)");
 my $outdir = "/tmp/packages_list_db";
 my $arch = "i386"; 
 
 # holds all messages which should be delivered to a user
 our $messaging_db;
 our $messaging_tn = "messaging"; 
-our @messaging_col_names = ("id INTEGER", "subject", "message_from", "message_to", 
-        "flag", "direction", "delivery_time", "message", "timestamp" );
+our @messaging_col_names = ("id INTEGER", "subject TEXT", "message_from VARCHAR(255)", "message_to VARCHAR(255)", 
+        "flag VARCHAR(255)", "direction VARCHAR(255)", "delivery_time VARCHAR(255)", "message TEXT", "timestamp VARCHAR(14)" );
 my $messaging_file_name;
 
 # path to directory to store client install log files
 our $client_fai_log_dir = "/var/log/fai"; 
 
 # queue which stores taskes until one of the $max_children children are ready to process the task
-my @tasks = qw();
+#my @tasks = qw();
 my @msgs_to_decrypt = qw();
 my $max_children = 2;
 
@@ -210,6 +215,10 @@ my $job_queue_opsi_delay = 10;
 our $opsi_client;
 our $opsi_url;
  
+# Lifetime of logged in user information. If no update information comes after n seconds, 
+# the user is expeceted to be no longer logged in or the host is no longer running. Because
+# of this, the user is deleted from login_users_db
+our $logged_in_user_date_of_expiry = 600;
 
 
 %cfg_defaults = (
@@ -218,38 +227,45 @@ our $opsi_url;
     "pid-file" => [\$pid_file, "/var/run/".$prg.".pid"],
     },
 "server" => {
-    "ip" => [\$server_ip, "0.0.0.0"],
-    "port" => [\$server_port, "20081"],
-    "known-clients"        => [\$known_clients_file_name, '/var/lib/gosa-si/clients.db' ],
-    "known-servers"        => [\$known_server_file_name, '/var/lib/gosa-si/servers.db'],
-    "incoming"             => [\$incoming_file_name, '/var/lib/gosa-si/incoming.db'],
-    "login-users"          => [\$login_users_file_name, '/var/lib/gosa-si/users.db'],
-    "fai-server"           => [\$fai_server_file_name, '/var/lib/gosa-si/fai_server.db'],
-    "fai-release"          => [\$fai_release_file_name, '/var/lib/gosa-si/fai_release.db'],
-    "packages-list"        => [\$packages_list_file_name, '/var/lib/gosa-si/packages.db'],
-    "messaging"            => [\$messaging_file_name, '/var/lib/gosa-si/messaging.db'],
-    "foreign-clients"      => [\$foreign_clients_file_name, '/var/lib/gosa-si/foreign_clients.db'],
-    "source-list"          => [\$sources_list, '/etc/apt/sources.list'],
-    "repo-path"            => [\$repo_path, '/srv/www/repository'],
-    "ldap-uri"             => [\$ldap_uri, ""],
-    "ldap-base"            => [\$ldap_base, ""],
-    "ldap-admin-dn"        => [\$ldap_admin_dn, ""],
-    "ldap-admin-password"  => [\$ldap_admin_password, ""],
-    "gosa-unit-tag"        => [\$gosa_unit_tag, ""],
-    "max-clients"          => [\$max_clients, 10],
-    "wol-password"           => [\$wake_on_lan_passwd, ""],
+    "ip"                    => [\$server_ip, "0.0.0.0"],
+    "port"                  => [\$server_port, "20081"],
+    "known-clients"         => [\$known_clients_file_name, '/var/lib/gosa-si/clients.db' ],
+    "known-servers"         => [\$known_server_file_name, '/var/lib/gosa-si/servers.db'],
+    "incoming"              => [\$incoming_file_name, '/var/lib/gosa-si/incoming.db'],
+    "login-users"           => [\$login_users_file_name, '/var/lib/gosa-si/users.db'],
+    "fai-server"            => [\$fai_server_file_name, '/var/lib/gosa-si/fai_server.db'],
+    "fai-release"           => [\$fai_release_file_name, '/var/lib/gosa-si/fai_release.db'],
+    "packages-list"         => [\$packages_list_file_name, '/var/lib/gosa-si/packages.db'],
+    "messaging"             => [\$messaging_file_name, '/var/lib/gosa-si/messaging.db'],
+    "foreign-clients"       => [\$foreign_clients_file_name, '/var/lib/gosa-si/foreign_clients.db'],
+    "source-list"           => [\$sources_list, '/etc/apt/sources.list'],
+    "repo-path"             => [\$repo_path, '/srv/www/repository'],
+    "ldap-uri"              => [\$ldap_uri, ""],
+    "ldap-base"             => [\$ldap_base, ""],
+    "ldap-admin-dn"         => [\$ldap_admin_dn, ""],
+    "ldap-admin-password"   => [\$ldap_admin_password, ""],
+    "gosa-unit-tag"         => [\$gosa_unit_tag, ""],
+    "max-clients"           => [\$max_clients, 10],
+    "wol-password"          => [\$wake_on_lan_passwd, ""],
+               "mysql-username"        => [\$mysql_username, "gosa_si"],
+               "mysql-password"        => [\$mysql_password, ""],
+               "mysql-database"        => [\$mysql_database, "gosa_si"],
+               "mysql-host"            => [\$mysql_host, "127.0.0.1"],
     },
 "GOsaPackages" => {
     "job-queue" => [\$job_queue_file_name, '/var/lib/gosa-si/jobs.db'],
     "job-queue-loop-delay" => [\$job_queue_loop_delay, 3],
     "messaging-db-loop-delay" => [\$messaging_db_loop_delay, 3],
     "key" => [\$GosaPackages_key, "none"],
+               "new-systems-ou" => [\$new_systems_ou, 'ou=workstations,ou=systems'],
     },
 "ClientPackages" => {
     "key" => [\$ClientPackages_key, "none"],
+    "user-date-of-expiry" => [\$logged_in_user_date_of_expiry, 600],
     },
 "ServerPackages"=> {
     "address"      => [\$foreign_server_string, ""],
+    "dns-lookup"            => [\$dns_lookup, "true"],
     "domain"  => [\$server_domain, ""],
     "key"     => [\$ServerPackages_key, "none"],
     "key-lifetime" => [\$foreign_servers_register_delay, 120],
@@ -306,7 +322,6 @@ sub daemon_log {
     if(not defined $level) { $level = 1 }
     if(defined $log_file){
         open(LOG_HANDLE, ">>$log_file");
-        chmod 0600, $log_file;
         if(not defined open( LOG_HANDLE, ">>$log_file" )) {
             print STDERR "cannot open $log_file: $!";
             return 
@@ -440,17 +455,19 @@ sub import_modules {
         eval { require $file; };
         if ($@) {
             daemon_log("0 ERROR: gosa-si-server could not load module $file", 1);
-            daemon_log("$@", 5);
+            daemon_log("$@", 1);
+           exit;
                } else {
                        my $info = eval($mod_name.'::get_module_info()');
                        # Only load module if get_module_info() returns a non-null object
                        if( $info ) {
-                               my ($input_address, $input_key, $input, $input_active, $input_type) = @{$info};
+                               my ($input_address, $input_key, $event_hash) = @{$info};
                                $known_modules->{$mod_name} = $info;
                                daemon_log("0 INFO: module $mod_name loaded", 5);
                        }
                }
     }   
+
     close (DIR);
 }
 
@@ -540,7 +557,7 @@ sub check_key_and_xml_validity {
         }
     };
     if($@) {
-        daemon_log("$session_id DEBUG: do not understand the message: $@", 7);
+        daemon_log("$session_id ERROR: do not understand the message: $@", 1);
         $msg = undef;
         $msg_hash = undef;
     }
@@ -689,42 +706,41 @@ sub input_from_known_client {
 
 
 sub input_from_unknown_host {
-    no strict "refs";
-    my ($input, $session_id) = @_ ;
-    my ($msg, $msg_hash, $module);
-    my $error_string;
-    
+       no strict "refs";
+       my ($input, $session_id) = @_ ;
+       my ($msg, $msg_hash, $module);
+       my $error_string;
+
        my %act_modules = %$known_modules;
-       
-    while( my ($mod, $info) = each(%act_modules)) {
 
-        # check a key exists for this module
-        my $module_key = ${$mod."_key"};
-        if( not defined $module_key ) {
-            if( $mod eq 'ArpHandler' ) {
-                next;
-            }
-            daemon_log("$session_id ERROR: no key specified in config file for $mod", 1);
-            next;
-        }
-        daemon_log("$session_id DEBUG: $mod: $module_key", 7);
+       while( my ($mod, $info) = each(%act_modules)) {
 
-        # check if module can open msg envelope with module key
-        ($msg, $msg_hash) = &check_key_and_xml_validity($input, $module_key, $session_id);
-        if( (not defined $msg) || (not defined $msg_hash) ) {
-            next;
-        }
-        else {
-            $module = $mod;
-            last;
-        }
-    }
+               # check a key exists for this module
+               my $module_key = ${$mod."_key"};
+               if( not defined $module_key ) {
+                       if( $mod eq 'ArpHandler' ) {
+                               next;
+                       }
+                       daemon_log("$session_id ERROR: no key specified in config file for $mod", 1);
+                       next;
+               }
+               daemon_log("$session_id DEBUG: $mod: $module_key", 7);
 
-    if( (!$msg) || (!$msg_hash) || (!$module)) {
-        daemon_log("$session_id DEBUG: Incoming message is not from an unknown host", 7);
-    }
+               # check if module can open msg envelope with module key
+               ($msg, $msg_hash) = &check_key_and_xml_validity($input, $module_key, $session_id);
+               if( (not defined $msg) || (not defined $msg_hash) ) {
+                       next;
+               } else {
+                       $module = $mod;
+                       last;
+               }
+       }
 
-    return ($msg, $msg_hash, $module);
+       if( (!$msg) || (!$msg_hash) || (!$module)) {
+               daemon_log("$session_id DEBUG: Incoming message is not from an unknown host", 7);
+       }
+
+       return ($msg, $msg_hash, $module);
 }
 
 
@@ -832,46 +848,46 @@ sub open_socket {
 }
 
 
-sub get_local_ip_for_remote_ip {
-       my $remote_ip= shift;
-       my $result="0.0.0.0";
-
-       if($remote_ip =~ /^(\d\d?\d?\.){3}\d\d?\d?$/) {
-               if($remote_ip eq "127.0.0.1") {
-                       $result = "127.0.0.1";
-               } else {
-                       my $PROC_NET_ROUTE= ('/proc/net/route');
-
-                       open(PROC_NET_ROUTE, "<$PROC_NET_ROUTE")
-                               or die "Could not open $PROC_NET_ROUTE";
-
-                       my @ifs = <PROC_NET_ROUTE>;
-
-                       close(PROC_NET_ROUTE);
-
-                       # Eat header line
-                       shift @ifs;
-                       chomp @ifs;
-                       foreach my $line(@ifs) {
-                               my ($Iface,$Destination,$Gateway,$Flags,$RefCnt,$Use,$Metric,$Mask,$MTU,$Window,$IRTT)=split(/\s/, $line);
-                               my $destination;
-                               my $mask;
-                               my ($d,$c,$b,$a)=unpack('a2 a2 a2 a2', $Destination);
-                               $destination= sprintf("%d.%d.%d.%d", hex($a), hex($b), hex($c), hex($d));
-                               ($d,$c,$b,$a)=unpack('a2 a2 a2 a2', $Mask);
-                               $mask= sprintf("%d.%d.%d.%d", hex($a), hex($b), hex($c), hex($d));
-                               if(new NetAddr::IP($remote_ip)->within(new NetAddr::IP($destination, $mask))) {
-                                       # destination matches route, save mac and exit
-                                       $result= &get_ip($Iface);
-                                       last;
-                               }
-                       }
-               }
-       } else {
-               daemon_log("0 WARNING: get_local_ip_for_remote_ip() was called with a non-ip parameter: '$remote_ip'", 1);
-       }
-       return $result;
-}
+#sub get_local_ip_for_remote_ip {
+#      my $remote_ip= shift;
+#      my $result="0.0.0.0";
+#
+#      if($remote_ip =~ /^(\d\d?\d?\.){3}\d\d?\d?$/) {
+#              if($remote_ip eq "127.0.0.1") {
+#                      $result = "127.0.0.1";
+#              } else {
+#                      my $PROC_NET_ROUTE= ('/proc/net/route');
+#
+#                      open(PROC_NET_ROUTE, "<$PROC_NET_ROUTE")
+#                              or die "Could not open $PROC_NET_ROUTE";
+#
+#                      my @ifs = <PROC_NET_ROUTE>;
+#
+#                      close(PROC_NET_ROUTE);
+#
+#                      # Eat header line
+#                      shift @ifs;
+#                      chomp @ifs;
+#                      foreach my $line(@ifs) {
+#                              my ($Iface,$Destination,$Gateway,$Flags,$RefCnt,$Use,$Metric,$Mask,$MTU,$Window,$IRTT)=split(/\s/, $line);
+#                              my $destination;
+#                              my $mask;
+#                              my ($d,$c,$b,$a)=unpack('a2 a2 a2 a2', $Destination);
+#                              $destination= sprintf("%d.%d.%d.%d", hex($a), hex($b), hex($c), hex($d));
+#                              ($d,$c,$b,$a)=unpack('a2 a2 a2 a2', $Mask);
+#                              $mask= sprintf("%d.%d.%d.%d", hex($a), hex($b), hex($c), hex($d));
+#                              if(new NetAddr::IP($remote_ip)->within(new NetAddr::IP($destination, $mask))) {
+#                                      # destination matches route, save mac and exit
+#                                      $result= &get_ip($Iface);
+#                                      last;
+#                              }
+#                      }
+#              }
+#      } else {
+#              daemon_log("0 WARNING: get_local_ip_for_remote_ip() was called with a non-ip parameter: '$remote_ip'", 1);
+#      }
+#      return $result;
+#}
 
 
 sub send_msg_to_target {
@@ -1001,248 +1017,264 @@ sub sig_handler {
 
 
 sub msg_to_decrypt {
-    my ($kernel, $session, $heap) = @_[KERNEL, SESSION, HEAP];
-    my $session_id = $session->ID;
-    my ($msg, $msg_hash, $module);
-    my $error = 0;
+       my ($kernel, $session, $heap) = @_[KERNEL, SESSION, HEAP];
+       my $session_id = $session->ID;
+       my ($msg, $msg_hash, $module);
+       my $error = 0;
 
-    # hole neue msg aus @msgs_to_decrypt
-    my $next_msg = shift @msgs_to_decrypt;
-    
-    # entschlüssle sie
+       # hole neue msg aus @msgs_to_decrypt
+       my $next_msg = shift @msgs_to_decrypt;
 
-    # msg is from a new client or gosa
-    ($msg, $msg_hash, $module) = &input_from_unknown_host($next_msg, $session_id);
-    # msg is from a gosa-si-server
-    if(( !$msg ) || ( !$msg_hash ) || ( !$module )){
-        ($msg, $msg_hash, $module) = &input_from_known_server($next_msg, $heap->{'remote_ip'}, $session_id);
-    }
-    # msg is from a gosa-si-client
-    if(( !$msg ) || ( !$msg_hash ) || ( !$module )){
-        ($msg, $msg_hash, $module) = &input_from_known_client($next_msg, $heap->{'remote_ip'}, $session_id);
-    }
-    # an error occurred
-    if(( !$msg ) || ( !$msg_hash ) || ( !$module )){
-        # if an incoming msg could not be decrypted (maybe a wrong key), send client a ping. If the client
-        # could not understand a msg from its server the client cause a re-registering process
-        daemon_log("$session_id WARNING cannot understand incoming msg, send 'ping'-msg to all host with ip '".$heap->{remote_ip}.
-                "' to cause a re-registering of the client if necessary", 3);
-        my $sql_statement = "SELECT * FROM $main::known_clients_tn WHERE (hostname LIKE '".$heap->{'remote_ip'}."%')";
-        my $query_res = $known_clients_db->select_dbentry( $sql_statement ); 
-        while( my ($hit_num, $hit) = each %{ $query_res } ) {    
-            my $host_name = $hit->{'hostname'};
-            my $host_key = $hit->{'hostkey'};
-            my $ping_msg = "<xml> <header>gosa_ping</header> <source>$server_address</source> <target>$host_name</target></xml>";
-            my $error = &send_msg_to_target($ping_msg, $host_name, $host_key, "gosa_ping", $session_id);
-            &update_jobdb_status_for_send_msgs($ping_msg, $error);
-        }
-        $error++;
-    }
+       # entschlüssle sie
 
+       # msg is from a new client or gosa
+       ($msg, $msg_hash, $module) = &input_from_unknown_host($next_msg, $session_id);
+       # msg is from a gosa-si-server
+       if(( !$msg ) || ( !$msg_hash ) || ( !$module )){
+               ($msg, $msg_hash, $module) = &input_from_known_server($next_msg, $heap->{'remote_ip'}, $session_id);
+       }
+       # msg is from a gosa-si-client
+       if(( !$msg ) || ( !$msg_hash ) || ( !$module )){
+               ($msg, $msg_hash, $module) = &input_from_known_client($next_msg, $heap->{'remote_ip'}, $session_id);
+       }
+       # an error occurred
+       if(( !$msg ) || ( !$msg_hash ) || ( !$module )){
+               # if an incoming msg could not be decrypted (maybe a wrong key), send client a ping. If the client
+               # could not understand a msg from its server the client cause a re-registering process
+               daemon_log("$session_id WARNING cannot understand incoming msg, send 'ping'-msg to all host with ip '".$heap->{remote_ip}.
+                       "' to cause a re-registering of the client if necessary", 3);
+               my $sql_statement = "SELECT * FROM $main::known_clients_tn WHERE (hostname LIKE '".$heap->{'remote_ip'}."%')";
+               my $query_res = $known_clients_db->select_dbentry( $sql_statement ); 
+               while( my ($hit_num, $hit) = each %{ $query_res } ) {    
+                       my $host_name = $hit->{'hostname'};
+                       my $host_key = $hit->{'hostkey'};
+                       my $ping_msg = "<xml> <header>gosa_ping</header> <source>$server_address</source> <target>$host_name</target></xml>";
+                       my $error = &send_msg_to_target($ping_msg, $host_name, $host_key, "gosa_ping", $session_id);
+                       &update_jobdb_status_for_send_msgs($ping_msg, $error);
+               }
+               $error++;
+       }
 
-    my $header;
-    my $target;
-    my $source;
-    my $done = 0;
-    my $sql;
-    my $res;
-
-    # check whether this message should be processed here
-    if ($error == 0) {
-        $header = @{$msg_hash->{'header'}}[0];
-        $target = @{$msg_hash->{'target'}}[0];
-        $source = @{$msg_hash->{'source'}}[0];
+
+       my $header;
+       my $target;
+       my $source;
+       my $done = 0;
+       my $sql;
+       my $res;
+
+       # check whether this message should be processed here
+       if ($error == 0) {
+               $header = @{$msg_hash->{'header'}}[0];
+               $target = @{$msg_hash->{'target'}}[0];
+               $source = @{$msg_hash->{'source'}}[0];
                my $not_found_in_known_clients_db = 0;
                my $not_found_in_known_server_db = 0;
                my $not_found_in_foreign_clients_db = 0;
-        my $local_address;
-        my ($target_ip, $target_port) = split(':', $target);
+               my $local_address;
+               my $local_mac;
+               my ($target_ip, $target_port) = split(':', $target);
+
+               # Determine the local ip address if target is an ip address
                if ($target =~ /^\d+\.\d+\.\d+\.\d+:\d+$/) {
                        $local_address = &get_local_ip_for_remote_ip($target_ip).":$server_port";
                } else {
-            $local_address = $server_address;
-        }
+                       $local_address = $server_address;
+               }
 
-        # target and source is equal to GOSA -> process here
-        if (not $done) {
-            if ($target eq "GOSA" && $source eq "GOSA") {
-                $done = 1;                    
-            }
-        }
+               # Determine the local mac address if target is a mac address
+               if ($target =~ /^([0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2})$/i) {
+                       my $loc_ip = &get_local_ip_for_remote_ip($heap->{'remote_ip'});
+                       my $network_interface= &get_interface_for_ip($loc_ip);
+                       $local_mac = &get_mac_for_interface($network_interface);
+               } else {
+                       $local_mac = $server_mac_address;
+               }
 
-        # target is own address without forward_to_gosa-tag -> process here
-        if (not $done) {
-            if (($target eq $local_address) && (not exists $msg_hash->{'forward_to_gosa'})) {
-                $done = 1;
-                if ($source eq "GOSA") {
-                    $msg =~ s/<\/xml>/<forward_to_gosa>$local_address,$session_id<\/forward_to_gosa><\/xml>/;
-                }
-                #print STDERR "target is own address without forward_to_gosa-tag -> process here\n";
-            }
-        }
+               # target and source is equal to GOSA -> process here
+               if (not $done) {
+                       if ($target eq "GOSA" && $source eq "GOSA") {
+                               $done = 1;                    
+                               &daemon_log("$session_id DEBUG: target and source is 'GOSA' -> process here", 7);
+                       }
+               }
 
-        # target is a client address in known_clients -> process here
+               # target is own address without forward_to_gosa-tag -> process here
                if (not $done) {
-                               $sql = "SELECT * FROM $known_clients_tn WHERE (hostname='$target' OR macaddress LIKE '$target')"; 
-                               $res = $known_clients_db->select_dbentry($sql);
-                               if (keys(%$res) > 0) {
-                                               $done = 1; 
-                                               my $hostname = $res->{1}->{'hostname'};
-                                               $msg =~ s/<target>$target<\/target>/<target>$hostname<\/target>/;
-                                               #print STDERR "target is a client address in known_clients -> process here\n";
-                        my $local_address = &get_local_ip_for_remote_ip($target_ip).":$server_port";
-                        if ($source eq "GOSA") {
-                            $msg =~ s/<\/xml>/<forward_to_gosa>$local_address,$session_id<\/forward_to_gosa><\/xml>/;
-                        }
+                       #if ((($target eq $local_address) || ($target eq $local_mac) ) && (not exists $msg_hash->{'forward_to_gosa'})) {
+                       if (($target eq $local_address) && (not exists $msg_hash->{'forward_to_gosa'})) {
+                               $done = 1;
+                               if ($source eq "GOSA") {
+                                       $msg =~ s/<\/xml>/<forward_to_gosa>$local_address,$session_id<\/forward_to_gosa><\/xml>/;
+                               }
+                               &daemon_log("$session_id DEBUG: target is own address without forward_to_gosa-tag -> process here", 7);
+                       }
+               }
 
-                               } else {
-                                               $not_found_in_known_clients_db = 1;
+               # target is a client address in known_clients -> process here
+               if (not $done) {
+                       $sql = "SELECT * FROM $known_clients_tn WHERE (hostname='$target' OR macaddress LIKE '$target')"; 
+                       $res = $known_clients_db->select_dbentry($sql);
+                       if (keys(%$res) > 0) {
+                               $done = 1; 
+                               my $hostname = $res->{1}->{'hostname'};
+                               $msg =~ s/<target>$target<\/target>/<target>$hostname<\/target>/;
+                               my $local_address = &get_local_ip_for_remote_ip($target_ip).":$server_port";
+                               if ($source eq "GOSA") {
+                                       $msg =~ s/<\/xml>/<forward_to_gosa>$local_address,$session_id<\/forward_to_gosa><\/xml>/;
                                }
+                               &daemon_log("$session_id DEBUG: target is a client address in known_clients -> process here", 7);
+
+                       } else {
+                               $not_found_in_known_clients_db = 1;
+                       }
                }
-       
-        # target ist own address with forward_to_gosa-tag not pointing to myself -> process here
-        if (not $done) {
-            my $forward_to_gosa =  @{$msg_hash->{'forward_to_gosa'}}[0];
-            my $gosa_at;
-            my $gosa_session_id;
-            if (($target eq $local_address) && (defined $forward_to_gosa)){
-                my ($gosa_at, $gosa_session_id) = split(/,/, $forward_to_gosa);
-                if ($gosa_at ne $local_address) {
-                    $done = 1;
-                    #print STDERR "target is own address with forward_to_gosa-tag not pointing to myself -> process here\n"; 
-                }
-            }
-        }
 
-        # if message should be processed here -> add message to incoming_db
-               if ($done) {
-                               # if a job or a gosa message comes from a foreign server, fake module to GosaPackages
-                               # so gosa-si-server knows how to process this kind of messages
-                               if ($header =~ /^gosa_/ || $header =~ /^job_/) {
-                                               $module = "GosaPackages";
+               # target ist own address with forward_to_gosa-tag not pointing to myself -> process here
+               if (not $done) {
+                       my $forward_to_gosa =  @{$msg_hash->{'forward_to_gosa'}}[0];
+                       my $gosa_at;
+                       my $gosa_session_id;
+                       if (($target eq $local_address) && (defined $forward_to_gosa)){
+                               my ($gosa_at, $gosa_session_id) = split(/,/, $forward_to_gosa);
+                               if ($gosa_at ne $local_address) {
+                                       $done = 1;
+                                       &daemon_log("$session_id DEBUG: target is own address with forward_to_gosa-tag not pointing to myself -> process here", 7); 
                                }
+                       }
+               }
+
+               # if message should be processed here -> add message to incoming_db
+               if ($done) {
+                       # if a job or a gosa message comes from a foreign server, fake module to GosaPackages
+                       # so gosa-si-server knows how to process this kind of messages
+                       if ($header =~ /^gosa_/ || $header =~ /^job_/) {
+                               $module = "GosaPackages";
+                       }
+
+                       my $res = $incoming_db->add_dbentry( {table=>$incoming_tn,
+                                       primkey=>[],
+                                       headertag=>$header,
+                                       targettag=>$target,
+                                       xmlmessage=>&encode_base64($msg),
+                                       timestamp=>&get_time,
+                                       module=>$module,
+                                       sessionid=>$session_id,
+                               } );
 
-                               my $res = $incoming_db->add_dbentry( {table=>$incoming_tn,
-                                                               primkey=>[],
-                                                               headertag=>$header,
-                                                               targettag=>$target,
-                                                               xmlmessage=>&encode_base64($msg),
-                                                               timestamp=>&get_time,
-                                                               module=>$module,
-                                                               sessionid=>$session_id,
-                                                               } );
                }
 
-        # target is own address with forward_to_gosa-tag pointing at myself -> forward to gosa
-        if (not $done) {
-            my $forward_to_gosa =  @{$msg_hash->{'forward_to_gosa'}}[0];
-            my $gosa_at;
-            my $gosa_session_id;
-            if (($target eq $local_address) && (defined $forward_to_gosa)){
-                my ($gosa_at, $gosa_session_id) = split(/,/, $forward_to_gosa);
-                if ($gosa_at eq $local_address) {
-                    my $session_reference = $kernel->ID_id_to_session($gosa_session_id);
-                    if( defined $session_reference ) {
-                        $heap = $session_reference->get_heap();
-                    }
-                    if(exists $heap->{'client'}) {
-                        $msg = &encrypt_msg($msg, $GosaPackages_key);
-                        $heap->{'client'}->put($msg);
-                        &daemon_log("$session_id INFO: incoming '$header' message forwarded to GOsa", 5); 
-                    }
-                    $done = 1;
-                    #print STDERR "target is own address with forward_to_gosa-tag pointing at myself -> forward to gosa\n";
-                }
-            }
+               # target is own address with forward_to_gosa-tag pointing at myself -> forward to gosa
+               if (not $done) {
+                       my $forward_to_gosa =  @{$msg_hash->{'forward_to_gosa'}}[0];
+                       my $gosa_at;
+                       my $gosa_session_id;
+                       if (($target eq $local_address) && (defined $forward_to_gosa)){
+                               my ($gosa_at, $gosa_session_id) = split(/,/, $forward_to_gosa);
+                               if ($gosa_at eq $local_address) {
+                                       my $session_reference = $kernel->ID_id_to_session($gosa_session_id);
+                                       if( defined $session_reference ) {
+                                               $heap = $session_reference->get_heap();
+                                       }
+                                       if(exists $heap->{'client'}) {
+                                               $msg = &encrypt_msg($msg, $GosaPackages_key);
+                                               $heap->{'client'}->put($msg);
+                                               &daemon_log("$session_id INFO: incoming '$header' message forwarded to GOsa", 5); 
+                                       }
+                                       $done = 1;
+                                       &daemon_log("$session_id DEBUG: target is own address with forward_to_gosa-tag pointing at myself -> forward to gosa", 7);
+                               }
+                       }
 
-        }
+               }
 
-        # target is a client address in foreign_clients -> forward to registration server
-        if (not $done) {
-            $sql = "SELECT * FROM $foreign_clients_tn WHERE (hostname='$target' OR macaddress LIKE '$target')";
-            $res = $foreign_clients_db->select_dbentry($sql);
-            if (keys(%$res) > 0) {
-                   my $hostname = $res->{1}->{'hostname'};
-                   my ($host_ip, $host_port) = split(/:/, $hostname);
-                   my $local_address =  &get_local_ip_for_remote_ip($host_ip).":$server_port";
-                my $regserver = $res->{1}->{'regserver'};
-                my $sql = "SELECT * FROM $known_server_tn WHERE hostname='$regserver'"; 
-                my $res = $known_server_db->select_dbentry($sql);
-                if (keys(%$res) > 0) {
-                    my $regserver_key = $res->{1}->{'hostkey'};
-                    $msg =~ s/<source>GOSA<\/source>/<source>$local_address<\/source>/;
-                    $msg =~ s/<target>$target<\/target>/<target>$hostname<\/target>/;
-                    if ($source eq "GOSA") {
-                        $msg =~ s/<\/xml>/<forward_to_gosa>$local_address,$session_id<\/forward_to_gosa><\/xml>/;
-                    }
-                    &send_msg_to_target($msg, $regserver, $regserver_key, $header, $session_id);
-                }
-                $done = 1;
-                #print STDERR "target is a client address in foreign_clients -> forward to registration server\n";
-            } else {
+               # target is a client address in foreign_clients -> forward to registration server
+               if (not $done) {
+                       $sql = "SELECT * FROM $foreign_clients_tn WHERE (hostname='$target' OR macaddress LIKE '$target')";
+                       $res = $foreign_clients_db->select_dbentry($sql);
+                       if (keys(%$res) > 0) {
+                               my $hostname = $res->{1}->{'hostname'};
+                               my ($host_ip, $host_port) = split(/:/, $hostname);
+                               my $local_address =  &get_local_ip_for_remote_ip($host_ip).":$server_port";
+                               my $regserver = $res->{1}->{'regserver'};
+                               my $sql = "SELECT * FROM $known_server_tn WHERE hostname='$regserver'"; 
+                               my $res = $known_server_db->select_dbentry($sql);
+                               if (keys(%$res) > 0) {
+                                       my $regserver_key = $res->{1}->{'hostkey'};
+                                       $msg =~ s/<source>GOSA<\/source>/<source>$local_address<\/source>/;
+                                       $msg =~ s/<target>$target<\/target>/<target>$hostname<\/target>/;
+                                       if ($source eq "GOSA") {
+                                               $msg =~ s/<\/xml>/<forward_to_gosa>$local_address,$session_id<\/forward_to_gosa><\/xml>/;
+                                       }
+                                       &send_msg_to_target($msg, $regserver, $regserver_key, $header, $session_id);
+                               }
+                               $done = 1;
+                               &daemon_log("$session_id DEBUG: target is a client address in foreign_clients -> forward to registration server", 7);
+                       } else {
                                $not_found_in_foreign_clients_db = 1;
                        }
-        }
+               }
 
-        # target is a server address -> forward to server
-        if (not $done) {
-            $sql = "SELECT * FROM $known_server_tn WHERE hostname='$target'";
-            $res = $known_server_db->select_dbentry($sql);
-            if (keys(%$res) > 0) {
-                my $hostkey = $res->{1}->{'hostkey'};
+               # target is a server address -> forward to server
+               if (not $done) {
+                       $sql = "SELECT * FROM $known_server_tn WHERE (hostname='$target' OR macaddress LIKE '$target')";
+                       $res = $known_server_db->select_dbentry($sql);
+                       if (keys(%$res) > 0) {
+                               my $hostkey = $res->{1}->{'hostkey'};
 
-                if ($source eq "GOSA") {
-                    $msg =~ s/<source>GOSA<\/source>/<source>$local_address<\/source>/;
-                    $msg =~ s/<\/xml>/<forward_to_gosa>$local_address,$session_id<\/forward_to_gosa><\/xml>/;
+                               if ($source eq "GOSA") {
+                                       $msg =~ s/<source>GOSA<\/source>/<source>$local_address<\/source>/;
+                                       $msg =~ s/<\/xml>/<forward_to_gosa>$local_address,$session_id<\/forward_to_gosa><\/xml>/;
 
-                }
+                               }
 
-                &send_msg_to_target($msg, $target, $hostkey, $header, $session_id);
-                $done = 1;
-                #print STDERR "target is a server address -> forward to server\n";
-            } else {
+                               &send_msg_to_target($msg, $target, $hostkey, $header, $session_id);
+                               $done = 1;
+                               &daemon_log("$session_id DEBUG: target is a server address -> forward to server", 7);
+                       } else {
                                $not_found_in_known_server_db = 1;
                        }
-        }
+               }
+
 
-               
                # target is not in foreign_clients_db, known_server_db or known_clients_db, maybe it is a complete new one -> process here
                if ( $not_found_in_foreign_clients_db 
-                                               && $not_found_in_known_server_db
-                                               && $not_found_in_known_clients_db) {
-                               my $res = $incoming_db->add_dbentry( {table=>$incoming_tn,
-                                                               primkey=>[],
-                                                               headertag=>$header,
-                                                               targettag=>$target,
-                                                               xmlmessage=>&encode_base64($msg),
-                                                               timestamp=>&get_time,
-                                                               module=>$module,
-                                                               sessionid=>$session_id,
-                                                               } );
-                               $done = 1;
+                       && $not_found_in_known_server_db
+                       && $not_found_in_known_clients_db) {
+                       my $res = $incoming_db->add_dbentry( {table=>$incoming_tn,
+                                       primkey=>[],
+                                       headertag=>$header,
+                                       targettag=>$target,
+                                       xmlmessage=>&encode_base64($msg),
+                                       timestamp=>&get_time,
+                                       module=>$module,
+                                       sessionid=>$session_id,
+                               } );
+                       $done = 1;
+                       &daemon_log("$session_id DEBUG: target is not in foreign_clients_db, known_server_db or known_clients_db, maybe it is a complete new one -> process here", 7);
                }
 
 
-        if (not $done) {
-            daemon_log("$session_id ERROR: do not know what to do with this message: $msg", 1);
-            if ($source eq "GOSA") {
-                my %data = ('error_msg' => &encode_base64($msg), 'error_string' => "Do not know what to do with this message!");
-                my $error_msg = &build_msg("error", $local_address, "GOSA", \%data ); 
-
-                my $session_reference = $kernel->ID_id_to_session($session_id);
-                if( defined $session_reference ) {
-                    $heap = $session_reference->get_heap();
-                }
-                if(exists $heap->{'client'}) {
-                    $error_msg = &encrypt_msg($error_msg, $GosaPackages_key);
-                    $heap->{'client'}->put($error_msg);
-                }
-            }
-        }
+               if (not $done) {
+                       daemon_log("$session_id ERROR: do not know what to do with this message: $msg", 1);
+                       if ($source eq "GOSA") {
+                               my %data = ('error_msg' => &encode_base64($msg), 'error_string' => "Do not know what to do with this message!");
+                               my $error_msg = &build_msg("error", $local_address, "GOSA", \%data ); 
+
+                               my $session_reference = $kernel->ID_id_to_session($session_id);
+                               if( defined $session_reference ) {
+                                       $heap = $session_reference->get_heap();
+                               }
+                               if(exists $heap->{'client'}) {
+                                       $error_msg = &encrypt_msg($error_msg, $GosaPackages_key);
+                                       $heap->{'client'}->put($error_msg);
+                               }
+                       }
+               }
 
-    }
+       }
 
-    return;
+       return;
 }
 
 
@@ -1303,7 +1335,11 @@ sub process_task {
     my $module = $task->{'module'};
     my $header =  $task->{'headertag'};
     my $session_id = $task->{'sessionid'};
-    my $msg_hash = $xml->XMLin($msg, ForceArray=>1);
+               my $msg_hash;
+               eval {
+       $msg_hash = $xml->XMLin($msg, ForceArray=>1);
+               }; 
+               daemon_log("ERROR: XML failure '$@'") if ($@);
     my $source = @{$msg_hash->{'source'}}[0];
     
     # set timestamp of incoming client uptodate, so client will not 
@@ -1324,9 +1360,9 @@ sub process_task {
             while ($answer_str =~ /<header>(\w+)<\/header>/g) {
                 daemon_log("$session_id INFO: got answer message with header '$1'", 5);
             }
-            daemon_log("$session_id DEBUG: $module: got answer from module: \n".$answer_str,8);
+            daemon_log("$session_id DEBUG: $module: got answer from module: \n".$answer_str,9);
         } else {
-            daemon_log("$session_id DEBUG: $module: got no answer from module!" ,8);
+            daemon_log("$session_id DEBUG: $module: got no answer from module!" ,7);
         }
 
     }
@@ -1396,9 +1432,9 @@ sub process_task {
                     &update_jobdb_status_for_send_msgs($answer, $error);
                 }
 
-                # target of msg is a mac address
+                # Target of msg is a mac address
                 elsif( $answer_target =~ /^([0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2})$/i ) {
-                    daemon_log("$session_id INFO: target is mac address '$answer_target', looking for host in known_clients", 5);
+                    daemon_log("$session_id INFO: target is mac address '$answer_target', looking for host in known_clients and foreign_clients", 5);
                     my $sql_statement = "SELECT * FROM known_clients WHERE macaddress LIKE '$answer_target'";
                     my $query_res = $known_clients_db->select_dbentry( $sql_statement );
                     my $found_ip_flag = 0;
@@ -1411,11 +1447,40 @@ sub process_task {
                         &update_jobdb_status_for_send_msgs($answer, $error);
                         $found_ip_flag++ ;
                     }   
+                    if ($found_ip_flag == 0) {
+                        my $sql = "SELECT * FROM $foreign_clients_tn WHERE macaddress LIKE '$answer_target'";
+                        my $res = $foreign_clients_db->select_dbentry($sql);
+                        while( my ($hit_num, $hit) = each %{ $res } ) {
+                            my $host_name = $hit->{hostname};
+                            my $reg_server = $hit->{regserver};
+                            daemon_log("$session_id INFO: found host '$host_name' with mac '$answer_target', registered at '$reg_server'", 5);
+                            
+                            # Fetch key for reg_server
+                            my $reg_server_key;
+                            my $sql = "SELECT * FROM $known_server_tn WHERE hostname='$reg_server'";
+                            my $res = $known_server_db->select_dbentry($sql);
+                            if (exists $res->{1}) {
+                                $reg_server_key = $res->{1}->{'hostkey'}; 
+                            } else {
+                                daemon_log("$session_id ERROR: cannot find hostkey for '$host_name' in '$known_server_tn'", 1); 
+                                daemon_log("$session_id ERROR: unable to forward answer to correct registration server, processing is aborted!", 1); 
+                                $reg_server_key = undef;
+                            }
+
+                            # Send answer to server where client is registered
+                            if (defined $reg_server_key) {
+                                $answer =~ s/$answer_target/$host_name/g;
+                                my $error = &send_msg_to_target($answer, $reg_server, $reg_server_key, $answer_header, $session_id);
+                                &update_jobdb_status_for_send_msgs($answer, $error);
+                                $found_ip_flag++ ;
+                            }
+                        }
+                    }
                     if( $found_ip_flag == 0) {
                         daemon_log("$session_id WARNING: no host found in known_clients with mac address '$answer_target'", 3);
                     }
 
-                #  answer is for one specific host   
+                # Answer is for one specific host   
                 } else {
                     # get encrypt_key
                     my $encrypt_key = &get_encrypt_key($answer_target);
@@ -1468,21 +1533,6 @@ sub session_start {
 }
 
 
-sub check_opsi_res {
-    my $res= shift;
-    if($res) {
-        if ($res->is_error) {
-            &main::daemon_log("ERROR: opsi configed communication failed: ".$res->error_message, 1);
-        } else {
-            return 1;
-        }
-    } else {
-        &main::daemon_log("ERROR: opsi configed communication failed: ".$opsi_client->status_line, 1);
-    }
-    return 0;
-}
-
-
 sub watch_for_done_jobs {
     #CHECK: $heap for what?
     my ($kernel,$heap) = @_[KERNEL, HEAP];
@@ -1503,17 +1553,18 @@ sub watch_for_done_jobs {
 sub watch_for_opsi_jobs {
     my ($kernel) = $_[KERNEL];
 
-    my $sql_statement = "SELECT * FROM ".$job_queue_tn." WHERE ((headertag='opsi_install_client') AND (status='processing'))";
+    # This is not very nice to look for opsi install jobs, but headertag has to be trigger_action_reinstall. The only way to identify a 
+    # opsi install job is to parse the xml message. There is still the correct header.
+    my $sql_statement = "SELECT * FROM ".$job_queue_tn." WHERE ((xmlmessage LIKE '%opsi_install_client</header>%') AND (status='processing') AND (siserver='localhost'))";
        my $res = $job_db->select_dbentry( $sql_statement );
 
+    # Ask OPSI for an update of the running jobs
     while (my ($id, $hit) = each %$res ) {
-
         # Determine current parameters of the job
         my $hostId = $hit->{'plainname'};
         my $macaddress = $hit->{'macaddress'};
         my $progress = $hit->{'progress'};
 
-        # Ask OPSI for an update of the running jobs
         my $result= {};
         
         # For hosts, only return the products that are or get installed
@@ -1525,13 +1576,18 @@ sub watch_for_opsi_jobs {
         };
         
         my $hres = $opsi_client->call($opsi_url, $callobj);
-        if (&check_opsi_res($hres)){
+        #my ($hres_err, $hres_err_string) = &check_opsi_res($hres);
+        if (not &check_opsi_res($hres)) {
             my $htmp= $hres->result->{$hostId};
         
-            # check state != not_installed or action == setup -> load and add
+            # Check state != not_installed or action == setup -> load and add
             my $products= 0;
             my $installed= 0;
-            my $error= 0;
+            my $installing = 0;
+            my $error= 0;  
+            my @installed_list;
+            my @error_list;
+            my $act_status = "none";
             foreach my $product (@{$htmp}){
 
                 if ($product->{'installationStatus'} ne "not_installed" or
@@ -1542,63 +1598,62 @@ sub watch_for_opsi_jobs {
         
                     if ($product->{'installationStatus'} eq "failed"){
                         $result->{$product->{'productId'}}= "error";
+                        unshift(@error_list, $product->{'productId'});
                         $error++;
                     }
                     if ($product->{'installationStatus'} eq "installed" && $product->{'actionRequest'}  eq "none"){
                         $result->{$product->{'productId'}}= "installed";
+                        unshift(@installed_list, $product->{'productId'});
                         $installed++;
                     }
                     if ($product->{'installationStatus'} eq "installing"){
                         $result->{$product->{'productId'}}= "installing";
+                        $installing++;
+                        $act_status = "installing - ".$product->{'productId'};
                     }
                 }
             }
         
-        # Estimate "rough" progress
-            $result->{'progress'}= int($installed * 100 / $products);
-        }
+            # Estimate "rough" progress, avoid division by zero
+            if ($products == 0) {
+                $result->{'progress'}= 0;
+            } else {
+                $result->{'progress'}= int($installed * 100 / $products);
+            }
 
-print STDERR Dumper($result);        
-    
-        # Set updates to job queue
-        my $act_status = "none";
-        my $error = 0;
-        my $installing = 0;
-        my $installed;
-        my @installed_list;
-        my @error_list;
-        while (my ($product, $status) = each %$result) {
-            if ($product eq "progress") { next; };
-            if ($status eq "installed" && (not $error)) {
-               unshift(@installed_list, $product);
-                $installed++;
-            } elsif ($status eq "installing" && (not $error)) {
-                $installing++;
-                $act_status = "$status - $product";
-            } elsif ($status eq "error") {
-                $error++;
-                unshift(@error_list, $product);
+            # Set updates in job queue
+            if ((not $error) && (not $installing) && ($installed)) {
+                $act_status = "installed - ".join(", ", @installed_list);
             }
-        }
-        if ((not $error) && (not $installing) && ($installed)) {
-            $act_status = "installed - ".join(", ", @installed_list);
-        }
-        if ($error) {
-            $act_status = "error - ".join(", ", @error_list);
-        }
-        if ($progress ne $result->{'progress'} ) {
-            my $update_statement = "UPDATE $job_queue_tn SET progress='".$result->{'progress'}."', result='$act_status', modified='1' WHERE macaddress='$macaddress'";
-            my $update_res = $job_db->update_dbentry($update_statement);
-        }
+            if ($error) {
+                $act_status = "error - ".join(", ", @error_list);
+            }
+            if ($progress ne $result->{'progress'} ) {
+                # Updating progress and result 
+                my $update_statement = "UPDATE $job_queue_tn SET modified='1', progress='".$result->{'progress'}."', result='$act_status' WHERE macaddress='$macaddress' AND siserver='localhost'";
+                my $update_res = $job_db->update_dbentry($update_statement);
+            }
+            if ($progress eq 100) { 
+                # Updateing status
+                my $done_statement = "UPDATE $job_queue_tn SET modified='1', ";
+                if ($error) {
+                    $done_statement .= "status='error'";
+                } else {
+                    $done_statement .= "status='done'";
+                }
+                $done_statement .= " WHERE macaddress='$macaddress' AND siserver='localhost'";
+                my $done_res = $job_db->update_dbentry($done_statement);
+            }
+
 
+        }
     }
 
     $kernel->delay_set('watch_for_opsi_jobs', $job_queue_opsi_delay);
 }
 
 
-# if a job got an update or was modified anyway, send to all other si-server an update message
-# of this jobs
+# If a job got an update or was modified anyway, send to all other si-server an update message of this jobs.
 sub watch_for_modified_jobs {
     my ($kernel,$heap) = @_[KERNEL, HEAP];
 
@@ -1632,7 +1687,7 @@ sub watch_for_new_jobs {
 
                # check gosa job quaeue for jobs with executable timestamp
                my $timestamp = &get_time();
-               my $sql_statement = "SELECT * FROM $job_queue_tn WHERE status='waiting' AND (CAST (timestamp AS INTEGER)) < $timestamp ORDER BY timestamp";
+               my $sql_statement = "SELECT * FROM $job_queue_tn WHERE status='waiting' AND (CAST(timestamp AS UNSIGNED)) < $timestamp ORDER BY timestamp";
                my $res = $job_db->exec_statement( $sql_statement );
 
                # Merge all new jobs that would do the same actions
@@ -1679,6 +1734,17 @@ sub watch_for_new_jobs {
 
                        # Skip new jobs for host if there is a processing job
                        if(defined($res) and defined @{$res}[0]) {
+                               # Prevent race condition if there is a trigger_activate job waiting and a goto-activation job processing
+                               my $row = @{$res}[0] if (ref $res eq 'ARRAY');
+                               if(@{$row}[5] eq 'trigger_action_reinstall') {
+                                       my $sql_statement_2 =  "SELECT * FROM $job_queue_tn WHERE macaddress LIKE '$macaddress' AND status='waiting' AND headertag = 'trigger_activate_new'"; 
+                                       my $res_2 = $job_db->exec_statement( $sql_statement_2 );
+                                       if(defined($res_2) and defined @{$res_2}[0]) {
+                                               # Set status from goto-activation to 'waiting' and update timestamp
+                                               $job_db->exec_statement("UPDATE $job_queue_tn SET status='waiting' WHERE macaddress LIKE '$macaddress' AND headertag = 'trigger_action_reinstall'");
+                                               $job_db->exec_statement("UPDATE $job_queue_tn SET timestamp='".&get_time(30)."' WHERE macaddress LIKE '$macaddress' AND headertag = 'trigger_action_reinstall'");
+                                       }
+                               }
                                next;
                        }
 
@@ -1727,7 +1793,7 @@ sub watch_for_new_messages {
     
     # check messaging_db for new incoming messages with executable timestamp
     my $timestamp = &get_time();
-    my $sql_statement = "SELECT * FROM $messaging_tn WHERE ( (CAST(timestamp AS INTEGER))<$timestamp AND flag='n' AND direction='in' )";
+    my $sql_statement = "SELECT * FROM $messaging_tn WHERE ( (CAST(timestamp AS UNSIGNED))<$timestamp AND flag='n' AND direction='in' )";
     my $res = $messaging_db->exec_statement( $sql_statement );
        foreach my $hit (@{$res}) {
 
@@ -1834,32 +1900,75 @@ sub watch_for_delivery_messages {
                my $send_succeed = 0;
                foreach my $hit (@$res) {
                                my $receiver_host = @$hit[0];
+                my $delivered2host = 0;
                                &daemon_log("M DEBUG: user '$receiver' is logged in at host '$receiver_host'", 7);
 
-                               # fetch key to encrypt msg propperly for usr/host
+                               # Looking for host in know_clients_db 
                                my $sql = "SELECT * FROM $known_clients_tn WHERE (hostname='$receiver_host')";
-                               &daemon_log("0 DEBUG: $sql", 7);
                                my $res = $known_clients_db->exec_statement($sql);
 
-                               # host is already down
-                               if (not ref(@$res[0]) eq "ARRAY") { next; }
+                # Host is known in known_clients_db
+                if (ref(@$res[0]) eq "ARRAY") {
+                    my $receiver_key = @{@{$res}[0]}[2];
+                    my %data = ('subject' => $subject, 'message' => $message, 'usr' => $receiver);
+                    my $out_msg = &build_msg("usr_msg", $server_address, $receiver_host, \%data ); 
+                    my $error = &send_msg_to_target($out_msg, $receiver_host, $receiver_key, "usr_msg", 0); 
+                    if ($error == 0 ) {
+                        $send_succeed++ ;
+                        $delivered2host++ ;
+                        &daemon_log("M DEBUG: send message for user '$receiver' to host '$receiver_host'", 7); 
+                    } else {
+                        &daemon_log("M DEBUG: cannot send message for user '$receiver' to host '$receiver_host'", 7); 
+                    }
+                }
+                
+                # Message already send, do not need to do anything more, otherwise ...
+                if ($delivered2host) { next;}
+    
+                # ...looking for host in foreign_clients_db
+                $sql = "SELECT * FROM $foreign_clients_tn WHERE (hostname='$receiver_host')";
+                $res = $foreign_clients_db->exec_statement($sql);
+  
+                               # Host is known in foreign_clients_db 
+                               if (ref(@$res[0]) eq "ARRAY") { 
+                    my $registration_server = @{@{$res}[0]}[2];
+                    
+                    # Fetch encryption key for registration server
+                    my $sql = "SELECT * FROM $known_server_tn WHERE (hostname='$registration_server')";
+                    my $res = $known_server_db->exec_statement($sql);
+                    if (ref(@$res[0]) eq "ARRAY") { 
+                        my $registration_server_key = @{@{$res}[0]}[3];
+                        my %data = ('subject' => $subject, 'message' => $message, 'usr' => $receiver);
+                        my $out_msg = &build_msg("usr_msg", $server_address, $receiver_host, \%data ); 
+                        my $error = &send_msg_to_target($out_msg, $registration_server, $registration_server_key, "usr_msg", 0); 
+                        if ($error == 0 ) {
+                            $send_succeed++ ;
+                            $delivered2host++ ;
+                            &daemon_log("M DEBUG: send message for user '$receiver' to server '$registration_server'", 7); 
+                        } else {
+                            &daemon_log("M ERROR: cannot send message for user '$receiver' to server '$registration_server'", 1); 
+                        }
 
-                               # host is on
-                               my $receiver_key = @{@{$res}[0]}[2];
-                               my %data = ('subject' => $subject, 'message' => $message, 'usr' => $receiver);
-                               my $out_msg = &build_msg("usr_msg", $server_address, $receiver_host, \%data ); 
-                               my $error = &send_msg_to_target($out_msg, $receiver_host, $receiver_key, "usr_msg", 0); 
-                               if ($error == 0 ) {
-                                       $send_succeed++ ;
-                               }
+                    } else {
+                        &daemon_log("M ERROR: host '$receiver_host' is reported to be ".
+                                "registrated at server '$registration_server', ".
+                                "but no data available in known_server_db ", 1); 
+                    }
+                }
+                
+                if (not $delivered2host) {
+                    &daemon_log("M ERROR: unable to send user message to host '$receiver_host'", 1);
+                }
                }
 
                if ($send_succeed) {
                                # set outgoing msg at db to deliverd
                                my $sql = "UPDATE $messaging_tn SET flag='d' WHERE (id='$msg_id' AND direction='out' AND message_to='$receiver')"; 
-                               &daemon_log("0 DEBUG: $sql", 7);
                                my $res = $messaging_db->exec_statement($sql); 
-               }
+                &daemon_log("M INFO: send message for user '$receiver' to logged in hosts", 5);
+               } else {
+            &daemon_log("M WARNING: failed to deliver message for user '$receiver'", 3); 
+        }
        }
 
     $kernel->delay_set('watch_for_delivery_messages', $messaging_db_loop_delay); 
@@ -1915,7 +2024,7 @@ sub watch_for_old_known_clients {
                 );
 
         $dt->add( seconds => 2 * int($hit->{'keylifetime'}) );
-        $expired_timestamp = $dt->ymd('').$dt->hms('')."\n";
+        $expired_timestamp = $dt->ymd('').$dt->hms('');
         if ($act_time > $expired_timestamp) {
             my $hostname = $hit->{'hostname'};
             my $del_sql = "DELETE FROM $known_clients_tn WHERE hostname='$hostname'"; 
@@ -1949,7 +2058,7 @@ sub watch_for_next_tasks {
         my $res = $incoming_db->exec_statement($sql);
     }
 
-    $kernel->delay_set('watch_for_next_tasks', 0.1); 
+    $kernel->delay_set('watch_for_next_tasks', 1); 
 }
 
 
@@ -1964,7 +2073,11 @@ sub get_ldap_handle {
        if ($session_id == 0) {
                daemon_log("$session_id DEBUG: get_ldap_handle invoked without a session_id, create a new ldap_handle", 7); 
                $ldap_handle = Net::LDAP->new( $ldap_uri );
-               $ldap_handle->bind($ldap_admin_dn, password => $ldap_admin_password) or daemon_log("$session_id ERROR: Bind to LDAP $ldap_uri as $ldap_admin_dn failed!"); 
+               if (defined $ldap_handle) {
+                       $ldap_handle->bind($ldap_admin_dn, password => $ldap_admin_password) or daemon_log("$session_id ERROR: Bind to LDAP $ldap_uri as $ldap_admin_dn failed!"); 
+               } else {
+                       daemon_log("$session_id ERROR: creation of a new LDAP handle failed (ldap_uri '$ldap_uri')");
+               }
 
        } else {
                my $session_reference = $global_kernel->ID_id_to_session($session_id);
@@ -2167,11 +2280,11 @@ sub run_create_fai_server_db {
 
 
 sub create_fai_server_db {
-    my ($table_name, $kernel, $dont_create_packages_list, $session_id) = @_;
+       my ($table_name, $kernel, $dont_create_packages_list, $session_id) = @_;
        my $result;
 
        if (not defined $session_id) { $session_id = 0; }
-    my $ldap_handle = &get_ldap_handle();
+       my $ldap_handle = &get_ldap_handle();
        if(defined($ldap_handle)) {
                daemon_log("$session_id INFO: create_fai_server_db: start", 5);
                my $mesg= $ldap_handle->search(
@@ -2181,25 +2294,25 @@ sub create_fai_server_db {
                        filter => "(&(FAIrepository=*)(objectClass=FAIrepositoryServer))",
                );
                if($mesg->{'resultCode'} == 0 &&
-                  $mesg->count != 0) {
-                  foreach my $entry (@{$mesg->{entries}}) {
-                          if($entry->exists('FAIrepository')) {
-                                  # Add an entry for each Repository configured for server
-                                  foreach my $repo(@{$entry->get_value('FAIrepository', asref => 1)}) {
-                                                  my($tmp_url,$tmp_server,$tmp_release,$tmp_sections) = split(/\|/, $repo);
-                                                  my $tmp_tag= $entry->get_value('gosaUnitTag') || "";
-                                                  $result= $fai_server_db->add_dbentry( { 
-                                                                  table => $table_name,
-                                                                  primkey => ['server', 'release', 'tag'],
-                                                                  server => $tmp_url,
-                                                                  release => $tmp_release,
-                                                                  sections => $tmp_sections,
-                                                                  tag => (length($tmp_tag)>0)?$tmp_tag:"",
-                                                          } );
-                                          }
-                                  }
-                          }
-                  }
+                       $mesg->count != 0) {
+                       foreach my $entry (@{$mesg->{entries}}) {
+                               if($entry->exists('FAIrepository')) {
+                                       # Add an entry for each Repository configured for server
+                                       foreach my $repo(@{$entry->get_value('FAIrepository', asref => 1)}) {
+                                               my($tmp_url,$tmp_server,$tmp_release,$tmp_sections) = split(/\|/, $repo);
+                                               my $tmp_tag= $entry->get_value('gosaUnitTag') || "";
+                                               $result= $fai_server_db->add_dbentry( { 
+                                                               table => $table_name,
+                                                               primkey => ['server', 'fai_release', 'tag'],
+                                                               server => $tmp_url,
+                                                               fai_release => $tmp_release,
+                                                               sections => $tmp_sections,
+                                                               tag => (length($tmp_tag)>0)?$tmp_tag:"",
+                                                       } );
+                                       }
+                               }
+                       }
+               }
                daemon_log("$session_id INFO: create_fai_server_db: finished", 5);
 
                # TODO: Find a way to post the 'create_packages_list_db' event
@@ -2207,24 +2320,24 @@ sub create_fai_server_db {
                        &create_packages_list_db(undef, undef, $session_id);
                }
        }       
-    
-    $ldap_handle->disconnect;
-       return $result;
+
+       $ldap_handle->disconnect;
+       return $result;
 }
 
 
 sub run_create_fai_release_db {
-    my ($session, $heap, $table_name) = @_[SESSION, HEAP, ARG0];
+       my ($session, $heap, $table_name) = @_[SESSION, HEAP, ARG0];
        my $session_id = $session->ID;
-    my $task = POE::Wheel::Run->new(
-            Program => sub { &create_fai_release_db($table_name, $session_id) },
-            StdoutEvent  => "session_run_result",
-            StderrEvent  => "session_run_debug",
-            CloseEvent   => "session_run_done",
-            );
+       my $task = POE::Wheel::Run->new(
+               Program => sub { &create_fai_release_db($table_name, $session_id) },
+               StdoutEvent  => "session_run_result",
+               StderrEvent  => "session_run_debug",
+               CloseEvent   => "session_run_done",
+       );
 
-    $heap->{task}->{ $task->ID } = $task;
-    return;
+       $heap->{task}->{ $task->ID } = $task;
+       return;
 }
 
 
@@ -2232,10 +2345,10 @@ sub create_fai_release_db {
        my ($table_name, $session_id) = @_;
        my $result;
 
-    # used for logging
-    if (not defined $session_id) { $session_id = 0; }
+       # used for logging
+       if (not defined $session_id) { $session_id = 0; }
 
-    my $ldap_handle = &get_ldap_handle();
+       my $ldap_handle = &get_ldap_handle();
        if(defined($ldap_handle)) {
                daemon_log("$session_id INFO: create_fai_release_db: start",5);
                my $mesg= $ldap_handle->search(
@@ -2258,7 +2371,7 @@ sub create_fai_release_db {
                                                        if(defined($entry) && ref($entry) eq 'HASH') {
                                                                my $sql= 
                                                                "INSERT INTO $table_name "
-                                                               ."(timestamp, release, class, type, state) VALUES ("
+                                                               ."(timestamp, fai_release, class, type, state) VALUES ("
                                                                .$timestamp.","
                                                                ."'".$entry->{'release'}."',"
                                                                ."'".$entry->{'class'}."',"
@@ -2273,7 +2386,6 @@ sub create_fai_release_db {
 
                        daemon_log("$session_id DEBUG: Inserting ".scalar @sql_list." entries to DB",8);
                        if(@sql_list) {
-                               unshift @sql_list, "VACUUM";
                                unshift @sql_list, "DELETE FROM $table_name";
                                $fai_release_db->exec_statementlist(\@sql_list);
                        }
@@ -2281,7 +2393,7 @@ sub create_fai_release_db {
                }
                daemon_log("$session_id INFO: create_fai_release_db: finished",5);
        }
-    $ldap_handle->disconnect;
+       $ldap_handle->disconnect;
        return $result;
 }
 
@@ -2661,10 +2773,11 @@ sub create_packages_list_db {
        close (CONFIG);
 
 
-       find(\&cleanup_and_extract, keys( %repo_dirs ));
-       &main::strip_packages_list_statements();
-       unshift @packages_list_statements, "VACUUM";
-       $packages_list_db->exec_statementlist(\@packages_list_statements);
+       if(keys(%repo_dirs)) {
+               find(\&cleanup_and_extract, keys( %repo_dirs ));
+               &main::strip_packages_list_statements();
+               $packages_list_db->exec_statementlist(\@packages_list_statements);
+       }
        unlink($packages_list_under_construction);
        daemon_log("$session_id INFO: create_packages_list_db: finished", 5); 
        return;
@@ -2895,24 +3008,22 @@ sub store_fileinfo {
 
 
 sub cleanup_and_extract {
-    my $fileinfo = $repo_files{ $File::Find::name };
+       my $fileinfo = $repo_files{ $File::Find::name };
 
-    if( defined $fileinfo ) {
+       if( defined $fileinfo ) {
+               my $dir = "$outdir/$fileinfo->{ 'dist' }/debconf.d";
+               my $sql;
+               my $package = $fileinfo->{ 'package' };
+               my $newver = $fileinfo->{ 'version' };
 
-        my $dir = "$outdir/$fileinfo->{ 'dist' }/debconf.d";
-        my $sql;
-        my $package = $fileinfo->{ 'package' };
-        my $newver = $fileinfo->{ 'version' };
-
-        mkpath($dir);
-        system( "dpkg -e '$File::Find::name' '$dir/DEBIAN'" );
+               mkpath($dir);
+               system( "dpkg -e '$File::Find::name' '$dir/DEBIAN'" );
 
                if( -f "$dir/DEBIAN/templates" ) {
 
                        daemon_log("DEBUG: Found debconf templates in '$package' - $newver", 7);
 
-                       my $tmpl= "";
-                       {
+                       my $tmpl= ""; {
                                local $/=undef;
                                open FILE, "$dir/DEBIAN/templates";
                                $tmpl = &encode_base64(<FILE>);
@@ -2921,11 +3032,11 @@ sub cleanup_and_extract {
                        rmtree("$dir/DEBIAN/templates");
 
                        $sql= "update $main::packages_list_tn set template = '$tmpl' where package = '$package' and version = '$newver';";
-               push @packages_list_statements, $sql;
+                       push @packages_list_statements, $sql;
                }
-    }
+       }
 
-    return;
+       return;
 }
 
 
@@ -2954,6 +3065,24 @@ sub register_at_foreign_servers {
         my $myhash = &create_xml_hash('new_server', $server_address, $hostname);
         &add_content2xml_hash($myhash, 'key', $hostkey);
         map(&add_content2xml_hash($myhash, 'client', @{$_}[0].",".@{$_}[4]), @$client_res);
+
+        # add locally loaded gosa-si modules to registration message
+        my $loaded_modules = {};
+        while (my ($package, $pck_info) = each %$known_modules) {
+                                               next if ((!defined(@$pck_info[2])) || (!(ref (@$pck_info[2]) eq 'HASH')));
+                                               foreach my $act_module (keys(%{@$pck_info[2]})) {
+                                                       $loaded_modules->{$act_module} = ""; 
+                                               }
+        }
+
+        map(&add_content2xml_hash($myhash, "loaded_modules", $_), keys(%$loaded_modules));
+
+        # add macaddress to registration message
+        my ($host_ip, $host_port) = split(/:/, $hostname);
+        my $local_ip = &get_local_ip_for_remote_ip($host_ip);
+        my $network_interface= &get_interface_for_ip($local_ip);
+        my $host_mac = &get_mac_for_interface($network_interface);
+        &add_content2xml_hash($myhash, 'macaddress', $host_mac);
         
         # build registration message and send it
         my $foreign_server_msg = &create_xml_string($myhash);
@@ -3021,6 +3150,12 @@ if ($server_headURL =~ /\/tag\// ||
     $server_status = "developmental" ;
 }
 
+# Prepare log file
+$root_uid = getpwnam('root');
+$adm_gid = getgrnam('adm');
+chmod(0640, $log_file);
+chown($root_uid, $adm_gid, $log_file);
+chown($root_uid, $adm_gid, "/var/lib/gosa-si");
 
 daemon_log(" ", 1);
 daemon_log("$0 started!", 1);
@@ -3029,48 +3164,72 @@ daemon_log($server_status_hash->{$server_status}.": $server_revision", 1);
 
 # connect to incoming_db
 unlink($incoming_file_name);
-$incoming_db = GOSA::DBsqlite->new($incoming_file_name);
+$incoming_db = GOSA::DBmysql->new($main::mysql_database, $main::mysql_host, $main::mysql_username, $main::mysql_password);
 $incoming_db->create_table($incoming_tn, \@incoming_col_names);
 
 # connect to gosa-si job queue
-$job_db = GOSA::DBsqlite->new($job_queue_file_name);
+unlink($job_queue_file_name);  ## just for debugging
+$job_db = GOSA::DBmysql->new($main::mysql_database, $main::mysql_host, $main::mysql_username, $main::mysql_password);
 $job_db->create_table($job_queue_tn, \@job_queue_col_names);
+chmod(0660, $job_queue_file_name);
+chown($root_uid, $adm_gid, $job_queue_file_name);
 
 # connect to known_clients_db
-$known_clients_db = GOSA::DBsqlite->new($known_clients_file_name);
+unlink($known_clients_file_name);   ## just for debugging
+$known_clients_db = GOSA::DBmysql->new($main::mysql_database, $main::mysql_host, $main::mysql_username, $main::mysql_password);
 $known_clients_db->create_table($known_clients_tn, \@known_clients_col_names);
+chmod(0660, $known_clients_file_name);
+chown($root_uid, $adm_gid, $known_clients_file_name);
 
 # connect to foreign_clients_db
-$foreign_clients_db = GOSA::DBsqlite->new($foreign_clients_file_name);
+unlink($foreign_clients_file_name);
+$foreign_clients_db = GOSA::DBmysql->new($main::mysql_database, $main::mysql_host, $main::mysql_username, $main::mysql_password);
 $foreign_clients_db->create_table($foreign_clients_tn, \@foreign_clients_col_names);
+chmod(0660, $foreign_clients_file_name);
+chown($root_uid, $adm_gid, $foreign_clients_file_name);
 
 # connect to known_server_db
 unlink($known_server_file_name);
-$known_server_db = GOSA::DBsqlite->new($known_server_file_name);
+$known_server_db = GOSA::DBmysql->new($main::mysql_database, $main::mysql_host, $main::mysql_username, $main::mysql_password);
 $known_server_db->create_table($known_server_tn, \@known_server_col_names);
+chmod(0660, $known_server_file_name);
+chown($root_uid, $adm_gid, $known_server_file_name);
 
 # connect to login_usr_db
-$login_users_db = GOSA::DBsqlite->new($login_users_file_name);
+unlink($login_users_file_name);
+$login_users_db = GOSA::DBmysql->new($main::mysql_database, $main::mysql_host, $main::mysql_username, $main::mysql_password);
 $login_users_db->create_table($login_users_tn, \@login_users_col_names);
+chmod(0660, $login_users_file_name);
+chown($root_uid, $adm_gid, $login_users_file_name);
 
-# connect to fai_server_db and fai_release_db
+# connect to fai_server_db 
 unlink($fai_server_file_name);
-$fai_server_db = GOSA::DBsqlite->new($fai_server_file_name);
+$fai_server_db = GOSA::DBmysql->new($main::mysql_database, $main::mysql_host, $main::mysql_username, $main::mysql_password);
 $fai_server_db->create_table($fai_server_tn, \@fai_server_col_names);
+chmod(0660, $fai_server_file_name);
+chown($root_uid, $adm_gid, $fai_server_file_name);
 
+# connect to fai_release_db
 unlink($fai_release_file_name);
-$fai_release_db = GOSA::DBsqlite->new($fai_release_file_name);
+$fai_release_db = GOSA::DBmysql->new($main::mysql_database, $main::mysql_host, $main::mysql_username, $main::mysql_password);
 $fai_release_db->create_table($fai_release_tn, \@fai_release_col_names);
+chmod(0660, $fai_release_file_name);
+chown($root_uid, $adm_gid, $fai_release_file_name);
 
 # connect to packages_list_db
 #unlink($packages_list_file_name);
 unlink($packages_list_under_construction);
-$packages_list_db = GOSA::DBsqlite->new($packages_list_file_name);
+$packages_list_db = GOSA::DBmysql->new($main::mysql_database, $main::mysql_host, $main::mysql_username, $main::mysql_password);
 $packages_list_db->create_table($packages_list_tn, \@packages_list_col_names);
+chmod(0660, $packages_list_file_name);
+chown($root_uid, $adm_gid, $packages_list_file_name);
 
 # connect to messaging_db
-$messaging_db = GOSA::DBsqlite->new($messaging_file_name);
+unlink($messaging_file_name);
+$messaging_db = GOSA::DBmysql->new($main::mysql_database, $main::mysql_host, $main::mysql_username, $main::mysql_password);
 $messaging_db->create_table($messaging_tn, \@messaging_col_names);
+chmod(0660, $messaging_file_name);
+chown($root_uid, $adm_gid, $messaging_file_name);
 
 
 # create xml object used for en/decrypting
@@ -3086,37 +3245,49 @@ if ($foreign_server_string ne "") {
     foreach my $foreign_server (@cfg_foreign_server_list) {
         push(@foreign_server_list, $foreign_server);
     }
-}
 
-# add foreign server from dns
-my @tmp_servers;
-if ( !$server_domain) {
-    # Try our DNS Searchlist
-    for my $domain(get_dns_domains()) {
-        chomp($domain);
-        my @tmp_domains= &get_server_addresses($domain);
-        if(@tmp_domains) {
-            for my $tmp_server(@tmp_domains) {
-                push @tmp_servers, $tmp_server;
+    daemon_log("0 INFO: found foreign server in config file: ".join(", ", @foreign_server_list), 5);
+}
+
+# Perform a DNS lookup for server registration if flag is true
+if ($dns_lookup eq "true") {
+    # Add foreign server from dns
+    my @tmp_servers;
+    if (not $server_domain) {
+        # Try our DNS Searchlist
+        for my $domain(get_dns_domains()) {
+            chomp($domain);
+            my ($tmp_domains, $error_string) = &get_server_addresses($domain);
+            if(@$tmp_domains) {
+                for my $tmp_server(@$tmp_domains) {
+                    push @tmp_servers, $tmp_server;
+                }
             }
         }
+        if(@tmp_servers && length(@tmp_servers)==0) {
+            daemon_log("0 WARNING: no foreign gosa-si-server found in DNS for domain '$server_domain'", 3);
+        }
+    } else {
+        @tmp_servers = &get_server_addresses($server_domain);
+        if( 0 == @tmp_servers ) {
+            daemon_log("0 WARNING: no foreign gosa-si-server found in DNS for domain '$server_domain'", 3);
+        }
     }
-    if(@tmp_servers && length(@tmp_servers)==0) {
-        daemon_log("0 WARNING: no foreign gosa-si-server found in DNS for domain '$server_domain'", 3);
+
+    daemon_log("0 INFO: found foreign server via DNS ".join(", ", @tmp_servers), 5);    
+
+    foreach my $server (@tmp_servers) { 
+        unshift(@foreign_server_list, $server); 
     }
 } else {
-    @tmp_servers = &get_server_addresses($server_domain);
-    if( 0 == @tmp_servers ) {
-        daemon_log("0 WARNING: no foreign gosa-si-server found in DNS for domain '$server_domain'", 3);
-    }
-}
-foreach my $server (@tmp_servers) { 
-    unshift(@foreign_server_list, $server); 
+    daemon_log("0 INFO: DNS lookup for server registration is disabled", 5);
 }
+
+
 # eliminate duplicate entries
 @foreign_server_list = &del_doubles(@foreign_server_list);
 my $all_foreign_server = join(", ", @foreign_server_list);
-daemon_log("0 INFO: found foreign server in config file and DNS: $all_foreign_server", 5);
+daemon_log("0 INFO: found foreign server in config file and DNS: '$all_foreign_server'", 5);
 
 # add all found foreign servers to known_server
 my $act_timestamp = &get_time();
@@ -3129,8 +3300,10 @@ foreach my $foreign_server (@foreign_server_list) {
     my $res = $known_server_db->add_dbentry( {table=>$known_server_tn, 
             primkey=>['hostname'],
             hostname=>$foreign_server,
+            macaddress=>"",
             status=>'not_jet_registered',
             hostkey=>"none",
+            loaded_modules => "none", 
             timestamp=>$act_timestamp,
             } );
 }
@@ -3152,25 +3325,27 @@ if ($opsi_enabled eq "true") {
 
 
 POE::Component::Server::TCP->new(
-    Alias => "TCP_SERVER",
+       Alias => "TCP_SERVER",
        Port => $server_port,
        ClientInput => sub {
-        my ($kernel, $input) = @_[KERNEL, ARG0];
-        push(@tasks, $input);
-        push(@msgs_to_decrypt, $input);
-        $kernel->yield("msg_to_decrypt");
-        },
-    InlineStates => {
-        msg_to_decrypt => \&msg_to_decrypt,
-        next_task => \&next_task,
-        task_result => \&handle_task_result,
-        task_done   => \&handle_task_done,
-        task_debug  => \&handle_task_debug,
-        child_reap => sub { "Do nothing special. I'm just a comment, but i'm necessary!"  },
-    }
+               my ($kernel, $input, $heap, $session) = @_[KERNEL, ARG0, HEAP, SESSION];
+        my $session_id = $session->ID;
+        my $remote_ip = $heap->{'remote_ip'};
+               push(@msgs_to_decrypt, $input);
+        &daemon_log("$session_id DEBUG: incoming message from '$remote_ip'", 7);
+               $kernel->yield("msg_to_decrypt");
+       },
+       InlineStates => {
+               msg_to_decrypt => \&msg_to_decrypt,
+               next_task => \&next_task,
+               task_result => \&handle_task_result,
+               task_done   => \&handle_task_done,
+               task_debug  => \&handle_task_debug,
+               child_reap => sub { "Do nothing special. I'm just a comment, but i'm necessary!"  },
+       }
 );
 
-daemon_log("start socket for incoming xml messages at port '$server_port' ", 1);
+daemon_log("0 INFO: start socket for incoming xml messages at port '$server_port' ", 1);
 
 # create session for repeatedly checking the job queue for jobs
 POE::Session->create(