Code

* Created "old" branch and moved stuff
[gosa.git] / branches / old / gosa-si / modules / ClientPackages.pm
diff --git a/branches/old/gosa-si/modules/ClientPackages.pm b/branches/old/gosa-si/modules/ClientPackages.pm
new file mode 100644 (file)
index 0000000..08c8689
--- /dev/null
@@ -0,0 +1,1070 @@
+package ClientPackages;
+
+use Exporter;
+@ISA = ("Exporter");
+
+# 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. 
+
+use strict;
+use warnings;
+use GOSA::GosaSupportDaemon;
+use IO::Socket::INET;
+use XML::Simple;
+use Data::Dumper;
+use NetAddr::IP;
+use Net::LDAP;
+use Net::LDAP::Util;
+use Socket;
+use Net::hostent;
+
+my $event_dir = "/usr/lib/gosa-si/server/ClientPackages";
+use lib "/usr/lib/gosa-si/server/ClientPackages";
+
+BEGIN{}
+END {}
+
+my ($server_ip, $server_port, $ClientPackages_key, $max_clients, $ldap_uri, $ldap_base, $ldap_admin_dn, $ldap_admin_password, $server_interface);
+#my ($bus_activ, $bus_key, $bus_ip, $bus_port);
+my $server;
+my $network_interface;
+#my $no_bus;
+my (@ldap_cfg, @pam_cfg, @nss_cfg, $goto_admin, $goto_secret);
+my $mesg;
+
+my %cfg_defaults = (
+"server" => {
+    "ip" => [\$server_ip, "0.0.0.0"],
+    "mac-address" => [\$main::server_mac_address, "00:00:00:00:00"],
+    "port" => [\$server_port, "20081"],
+    "ldap-uri" => [\$ldap_uri, ""],
+    "ldap-base" => [\$ldap_base, ""],
+    "ldap-admin-dn" => [\$ldap_admin_dn, ""],
+    "ldap-admin-password" => [\$ldap_admin_password, ""],
+    "max-clients" => [\$max_clients, 100],
+    },
+"ClientPackages" => {
+    "key" => [\$ClientPackages_key, ""],
+    },
+);
+
+### START #####################################################################
+
+# read configfile and import variables
+&local_read_configfile();
+
+
+# if server_ip is not an ip address but a name
+if( inet_aton($server_ip) ){ $server_ip = inet_ntoa(inet_aton($server_ip)); } 
+$network_interface= &get_interface_for_ip($server_ip);
+$main::server_mac_address= &get_mac($network_interface);
+
+
+# import local events
+my ($error, $result, $event_hash) = &import_events($event_dir);
+
+foreach my $log_line (@$result) {
+    if ($log_line =~ / succeed: /) {
+        &main::daemon_log("0 DEBUG: ClientPackages - $log_line", 7);
+    } else {
+        &main::daemon_log("0 ERROR: ClientPackages - $log_line", 1);
+    }
+}
+# build vice versa event_hash, event_name => module
+my $event2module_hash = {};
+while (my ($module, $mod_events) = each %$event_hash) {
+    while (my ($event_name, $nothing) = each %$mod_events) {
+        $event2module_hash->{$event_name} = $module;
+    }
+
+}
+
+# Unit tag can be defined in config
+if((not defined($main::gosa_unit_tag)) || length($main::gosa_unit_tag) == 0) {
+       # Read gosaUnitTag from LDAP
+        
+    my $ldap_handle = &main::get_ldap_handle(); 
+    if( defined($ldap_handle) ) {
+               &main::daemon_log("0 INFO: Searching for servers gosaUnitTag with mac address $main::server_mac_address",5);
+               # Perform search for Unit Tag
+               $mesg = $ldap_handle->search(
+                       base   => $ldap_base,
+                       scope  => 'sub',
+                       attrs  => ['gosaUnitTag'],
+                       filter => "(macaddress=$main::server_mac_address)"
+               );
+
+               if ((! $main::server_mac_address eq "00:00:00:00:00:00") and $mesg->count == 1) {
+                       my $entry= $mesg->entry(0);
+                       my $unit_tag= $entry->get_value("gosaUnitTag");
+                       $main::ldap_server_dn= $mesg->entry(0)->dn;
+                       if(defined($unit_tag) && length($unit_tag) > 0) {
+                               &main::daemon_log("0 INFO: Detected gosaUnitTag $unit_tag for creating entries", 5);
+                               $main::gosa_unit_tag= $unit_tag;
+                       }
+               } else {
+                       # Perform another search for Unit Tag
+                       my $hostname= `hostname -f`;
+                       chomp($hostname);
+                       &main::daemon_log("0 INFO: Searching for servers gosaUnitTag with hostname $hostname",5);
+                       $mesg = $ldap_handle->search(
+                               base   => $ldap_base,
+                               scope  => 'sub',
+                               attrs  => ['gosaUnitTag'],
+                               filter => "(&(cn=$hostname)(objectClass=goServer))"
+                       );
+                       if ($mesg->count == 1) {
+                               my $entry= $mesg->entry(0);
+                               my $unit_tag= $entry->get_value("gosaUnitTag");
+                               $main::ldap_server_dn= $mesg->entry(0)->dn;
+                               if(defined($unit_tag) && length($unit_tag) > 0) {
+                                       &main::daemon_log("0 INFO: Detected gosaUnitTag $unit_tag for creating entries", 5);
+                                       $main::gosa_unit_tag= $unit_tag;
+                               }
+                       } else {
+                               # Perform another search for Unit Tag
+                               $hostname= `hostname -s`;
+                               chomp($hostname);
+                               &main::daemon_log("0 INFO: Searching for servers gosaUnitTag with hostname $hostname",5);
+                               $mesg = $ldap_handle->search(
+                                       base   => $ldap_base,
+                                       scope  => 'sub',
+                                       attrs  => ['gosaUnitTag'],
+                                       filter => "(&(cn=$hostname)(objectClass=goServer))"
+                               );
+                               if ($mesg->count == 1) {
+                                       my $entry= $mesg->entry(0);
+                                       my $unit_tag= $entry->get_value("gosaUnitTag");
+                                       $main::ldap_server_dn= $mesg->entry(0)->dn;
+                                       if(defined($unit_tag) && length($unit_tag) > 0) {
+                                               &main::daemon_log("INFO: Detected gosaUnitTag $unit_tag for creating entries", 5);
+                                               $main::gosa_unit_tag= $unit_tag;
+                                       }
+                               } else {
+                                       &main::daemon_log("0 WARNING: No gosaUnitTag detected. Not using gosaUnitTag", 3);
+                               }
+                       }
+               }
+       } else {
+               &main::daemon_log("0 INFO: Using gosaUnitTag from config-file: $main::gosa_unit_tag",5);
+       }
+}
+
+
+my $server_address = "$server_ip:$server_port";
+$main::server_address = $server_address;
+
+
+### functions #################################################################
+
+
+sub get_module_info {
+    my @info = ($server_address,
+                $ClientPackages_key,
+                $event_hash,
+                );
+    return \@info;
+}
+
+
+#===  FUNCTION  ================================================================
+#         NAME:  local_read_configfile
+#   PARAMETERS:  cfg_file - string -
+#      RETURNS:  nothing
+#  DESCRIPTION:  read cfg_file and set variables
+#===============================================================================
+sub local_read_configfile {
+    my $cfg;
+    if( defined( $main::cfg_file) && ( (-s $main::cfg_file) > 0 )) {
+        if( -r $main::cfg_file ) {
+            $cfg = Config::IniFiles->new( -file => $main::cfg_file );
+        } else {
+            print STDERR "Couldn't read config file!";
+        }
+    } else {
+        $cfg = Config::IniFiles->new() ;
+    }
+    foreach my $section (keys %cfg_defaults) {
+        foreach my $param (keys %{$cfg_defaults{ $section }}) {
+            my $pinfo = $cfg_defaults{ $section }{ $param };
+            ${@$pinfo[0]} = $cfg->val( $section, $param, @$pinfo[1] );
+        }
+    }
+
+    # Read non predefined sections
+    my $param;
+    if ($cfg->SectionExists('ldap')){
+               foreach $param ($cfg->Parameters('ldap')){
+                       push (@ldap_cfg, "$param ".$cfg->val('ldap', $param));
+               }
+    }
+    if ($cfg->SectionExists('pam_ldap')){
+               foreach $param ($cfg->Parameters('pam_ldap')){
+                       push (@pam_cfg, "$param ".$cfg->val('pam_ldap', $param));
+               }
+    }
+    if ($cfg->SectionExists('nss_ldap')){
+               foreach $param ($cfg->Parameters('nss_ldap')){
+                       push (@nss_cfg, "$param ".$cfg->val('nss_ldap', $param));
+               }
+    }
+    if ($cfg->SectionExists('goto')){
+       $goto_admin= $cfg->val('goto', 'terminal_admin');
+       $goto_secret= $cfg->val('goto', 'terminal_secret');
+    } else {
+       $goto_admin= undef;
+       $goto_secret= undef;
+    }
+
+}
+
+
+#===  FUNCTION  ================================================================
+#         NAME:  get_mac 
+#   PARAMETERS:  interface name (i.e. eth0)
+#      RETURNS:  (mac address) 
+#  DESCRIPTION:  Uses ioctl to get mac address directly from system.
+#===============================================================================
+sub get_mac {
+       my $ifreq= shift;
+       my $result;
+       if ($ifreq && length($ifreq) > 0) { 
+               if($ifreq eq "all") {
+                       $result = "00:00:00:00:00:00";
+               } else {
+                       my $SIOCGIFHWADDR= 0x8927;     # man 2 ioctl_list
+
+                       # A configured MAC Address should always override a guessed value
+                       if ($main::server_mac_address and length($main::server_mac_address) > 0) {
+                               $result= $main::server_mac_address;
+                       }
+
+                       socket SOCKET, PF_INET, SOCK_DGRAM, getprotobyname('ip')
+                               or die "socket: $!";
+
+                       if(ioctl SOCKET, $SIOCGIFHWADDR, $ifreq) {
+                               my ($if, $mac)= unpack 'h36 H12', $ifreq;
+
+                               if (length($mac) > 0) {
+                                       $mac=~ m/^([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])$/;
+                                       $mac= sprintf("%s:%s:%s:%s:%s:%s", $1, $2, $3, $4, $5, $6);
+                                       $result = $mac;
+                               }
+                       }
+               }
+       }
+       return $result;
+}
+
+
+#===  FUNCTION  ================================================================
+#         NAME:  process_incoming_msg
+#   PARAMETERS:  crypted_msg - string - incoming crypted message
+#      RETURNS:  nothing
+#  DESCRIPTION:  handels the proceeded distribution to the appropriated functions
+#===============================================================================
+sub process_incoming_msg {
+    my ($msg, $msg_hash, $session_id) = @_ ;
+    my $error = 0;
+    my $host_name;
+    my $host_key;
+    my @out_msg_l = ("nohandler");
+    my $sql_events;
+
+    # process incoming msg
+    my $header = @{$msg_hash->{header}}[0]; 
+    my $source = @{$msg_hash->{source}}[0]; 
+    my @target_l = @{$msg_hash->{target}};
+
+    # skip PREFIX
+    $header =~ s/^CLMSG_//;
+
+    &main::daemon_log("$session_id DEBUG: ClientPackages: msg to process: $header", 7);
+
+    if( 0 == length @target_l){     
+        &main::daemon_log("$session_id ERROR: no target specified for msg $header", 1);
+        $error++;
+    }
+
+    if( 1 == length @target_l) {
+        my $target = $target_l[0];
+               if(&server_matches($target)) {
+            if ($header eq 'new_key') {
+                @out_msg_l = &new_key($msg_hash)
+            } elsif ($header eq 'here_i_am') {
+                @out_msg_l = &here_i_am($msg, $msg_hash, $session_id)
+            } else {
+                # a event exists with the header as name
+                if( exists $event2module_hash->{$header} ) {
+                    &main::daemon_log("$session_id INFO: found event '$header' at event-module '".$event2module_hash->{$header}."'", 5);
+                    no strict 'refs';
+                    @out_msg_l = &{$event2module_hash->{$header}."::$header"}($msg, $msg_hash, $session_id);
+
+                # if no event handler is implemented   
+                } else {
+                    $sql_events = "SELECT * FROM $main::known_clients_tn WHERE ( (macaddress LIKE '$source') OR (hostname='$source') )"; 
+                    my $res = $main::known_clients_db->select_dbentry( $sql_events );
+                    my $l = keys(%$res);
+
+                    # set error if no or more than 1 hits are found for sql query
+                    if ( $l != 1) {
+                        @out_msg_l = ('knownclienterror');
+
+                    # found exact 1 hit in db
+                    } else {
+                        my $client_events = $res->{'1'}->{'events'};
+
+                        # client is registered for this event, deliver this message to client
+                        $header =~ s/^answer_//;
+                        if ($client_events =~ /,$header,/) {
+                            # answer message finally arrived destination server, so forward messages to GOsa
+                            if ($target eq $main::server_address) {        
+                                $msg =~ s/<header>answer_/<header>/;
+                                $msg =~ s/<target>\S+<\/target>/<target>GOSA<\/target>/;
+                            }
+                            @out_msg_l = ( $msg );
+
+                        # client is not registered for this event, set error
+                        } else {
+                            @out_msg_l = ('noeventerror');
+                        }
+                    }
+                }
+            }
+
+            # if delivery not possible raise error and return 
+            if( not defined $out_msg_l[0] ) {
+                @out_msg_l = ();
+            } elsif( $out_msg_l[0] eq 'nohandler') {
+                &main::daemon_log("$session_id ERROR: ClientPackages: no event handler or core function defined for '$header'", 1);
+                @out_msg_l = ();
+            }  elsif ($out_msg_l[0] eq 'knownclienterror') {
+                &main::daemon_log("$session_id ERROR: no or more than 1 hits are found at known_clients_db with sql query: '$sql_events'", 1);
+                &main::daemon_log("$session_id ERROR: processing is aborted and message will not be forwarded", 1);
+                @out_msg_l = ();
+            } elsif ($out_msg_l[0] eq 'noeventerror') {
+                &main::daemon_log("$session_id ERROR: client '$target' is not registered for event '$header', processing is aborted", 1); 
+                @out_msg_l = ();
+            }
+
+
+
+
+        }
+               else {
+                       &main::daemon_log("INFO: msg is not for gosa-si-server '$server_address', deliver it to target '$target'", 5);
+                       push(@out_msg_l, $msg);
+               }
+    }
+
+    return \@out_msg_l;
+}
+
+
+#===  FUNCTION  ================================================================
+#         NAME:  new_passwd
+#   PARAMETERS:  msg_hash - ref - hash from function create_xml_hash
+#      RETURNS:  nothing
+#  DESCRIPTION:  process this incoming message
+#===============================================================================
+sub new_key {
+    my ($msg_hash) = @_;
+    my @out_msg_l;
+    
+    my $header = @{$msg_hash->{header}}[0];
+    my $source_name = @{$msg_hash->{source}}[0];
+    my $source_key = @{$msg_hash->{new_key}}[0];
+    my $query_res;
+
+    # check known_clients_db
+    my $sql_statement = "SELECT * FROM known_clients WHERE hostname='$source_name'";
+    $query_res = $main::known_clients_db->select_dbentry( $sql_statement );
+    if( 1 == keys %{$query_res} ) {
+        my $act_time = &get_time;
+        my $sql_statement= "UPDATE known_clients ".
+            "SET hostkey='$source_key', timestamp='$act_time' ".
+            "WHERE hostname='$source_name'";
+        my $res = $main::known_clients_db->update_dbentry( $sql_statement );
+        my $hash = &create_xml_hash("confirm_new_key", $server_address, $source_name);
+        my $out_msg = &create_xml_string($hash);
+        push(@out_msg_l, $out_msg);
+    }
+
+    # only do if host still not found
+    if( 0 == @out_msg_l ) {
+        # check known_server_db
+        $sql_statement = "SELECT * FROM known_server WHERE hostname='$source_name'";
+        $query_res = $main::known_server_db->select_dbentry( $sql_statement );
+        if( 1 == keys %{$query_res} ) {
+            my $act_time = &get_time;
+            my $sql_statement= "UPDATE known_server ".
+                "SET hostkey='$source_key', timestamp='$act_time' ".
+                "WHERE hostname='$source_name'";
+            my $res = $main::known_server_db->update_dbentry( $sql_statement );
+
+            my $hash = &create_xml_hash("confirm_new_key", $server_address, $source_name);
+            my $out_msg = &create_xml_string($hash);
+            push(@out_msg_l, $out_msg);
+        }
+    }
+
+    return @out_msg_l;
+}
+
+
+#===  FUNCTION  ================================================================
+#         NAME:  here_i_am
+#   PARAMETERS:  msg_hash - hash - hash from function create_xml_hash
+#      RETURNS:  nothing
+#  DESCRIPTION:  process this incoming message
+#===============================================================================
+sub here_i_am {
+    my ($msg, $msg_hash, $session_id) = @_;
+    my @out_msg_l;
+    my $out_hash;
+    my $source = @{$msg_hash->{source}}[0];
+    my $mac_address = @{$msg_hash->{mac_address}}[0];
+       my $gotoHardwareChecksum = @{$msg_hash->{gotoHardwareChecksum}}[0];
+    my $client_status = @{$msg_hash->{client_status}}[0];
+    my $client_revision = @{$msg_hash->{client_revision}}[0];
+    my $key_lifetime = @{$msg_hash->{key_lifetime}}[0];
+
+    # Move forced hostname to heap - if used
+    #FIXME: move to some global POE namespace - please
+    if ( defined($msg_hash->{'force-hostname'}[0]) &&
+       length($msg_hash->{'force-hostname'}[0]) > 0){
+    #      $heap->{force-hostname}->{$mac_address}= $msg_hash->{'force-hostname'}[0];
+           open (TFILE, ">/var/tmp/$mac_address");
+           print TFILE $msg_hash->{'force-hostname'}[0];
+           close (TFILE); 
+    } else {
+    #      $heap->{force-hostname}->{$mac_address}= undef;
+       if ( -e "/var/tmp/$mac_address") {
+               unlink("/var/tmp/$mac_address")
+       }; 
+    }
+
+    # number of known clients
+    my $nu_clients= $main::known_clients_db->count_dbentries('known_clients');
+
+    # check wether client address or mac address is already known
+    my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$source'";
+    my $db_res= $main::known_clients_db->select_dbentry( $sql_statement );
+    
+    if ( 1 == keys %{$db_res} ) {
+        &main::daemon_log("$session_id WARNING: $source is already known as a client", 1);
+        &main::daemon_log("$session_id WARNING: values for $source are being overwritten", 1);   
+        $nu_clients --;
+    }
+
+    # number of actual activ clients
+    my $act_nu_clients = $nu_clients;
+
+    &main::daemon_log("$session_id INFO: number of actual activ clients: $act_nu_clients", 5);
+    &main::daemon_log("$session_id INFO: number of maximal allowed clients: $max_clients", 5);
+
+    if($max_clients <= $act_nu_clients) {
+        my $out_hash = &create_xml_hash("denied", $server_address, $source);
+        &add_content2xml_hash($out_hash, "denied", "I_cannot_take_any_more_clients!");
+        my $passwd = @{$msg_hash->{new_passwd}}[0]; 
+        &send_msg_hash2address($out_hash, $source, $passwd);
+        return;
+    }
+    
+    # new client accepted
+    my $new_passwd = @{$msg_hash->{new_passwd}}[0];
+
+    # add entry to known_clients_db
+    my $events = @{$msg_hash->{events}}[0];
+    my $act_timestamp = &get_time;
+    my $res = $main::known_clients_db->add_dbentry( {table=>'known_clients', 
+                                                primkey=>['hostname'],
+                                                hostname=>$source,
+                                                events=>$events,
+                                                macaddress=>$mac_address,
+                                                status=>'registered',
+                                                hostkey=>$new_passwd,
+                                                timestamp=>$act_timestamp,
+                                                keylifetime=>$key_lifetime,
+                                                } );
+
+    if ($res != 0)  {
+        &main::daemon_log("$session_id ERROR: cannot add entry to known_clients: $res");
+        return;
+    }
+    
+    # return acknowledgement to client
+    $out_hash = &create_xml_hash("registered", $server_address, $source);
+
+
+    # give the new client his ldap config
+    # Workaround: Send within the registration response, if the client will get an ldap config later
+       my $new_ldap_config_out = &new_ldap_config($source, $session_id);
+       if($new_ldap_config_out && (!($new_ldap_config_out =~ /error/))) {
+               &add_content2xml_hash($out_hash, "ldap_available", "true");
+       } elsif($new_ldap_config_out && $new_ldap_config_out =~ /error/){
+               &add_content2xml_hash($out_hash, "error", $new_ldap_config_out);
+
+               my $sql_statement = "UPDATE $main::job_queue_tn ".
+               "SET status='error', result='$new_ldap_config_out' ".
+               "WHERE status='processing' AND macaddress LIKE '$mac_address'";
+               my $res = $main::job_db->update_dbentry($sql_statement);
+               &main::daemon_log("$session_id DEBUG: $sql_statement RESULT: $res", 7);         
+       }
+    my $register_out = &create_xml_string($out_hash);
+    push(@out_msg_l, $register_out);
+
+    # Really send the ldap config
+    if( $new_ldap_config_out && (!($new_ldap_config_out =~ /error/))) {
+            push(@out_msg_l, $new_ldap_config_out);
+    }
+
+    # Send client hardware configuration
+       my $hardware_config_out = &hardware_config($msg, $msg_hash, $session_id);
+       if( $hardware_config_out ) {
+               push(@out_msg_l, $hardware_config_out);
+       }
+
+    # Send client ntp server
+    my $ntp_config_out = &new_ntp_config($mac_address, $session_id);
+    if ($ntp_config_out) {
+        push(@out_msg_l, $ntp_config_out);
+    }
+
+    # Send client syslog server
+    my $syslog_config_out = &new_syslog_config($mac_address, $session_id);
+    if ($syslog_config_out) {
+        push(@out_msg_l, $syslog_config_out);
+    }
+
+    # notify registered client to all other server
+    my %mydata = ( 'client' => $source, 'macaddress' => $mac_address);
+    my $mymsg = &build_msg('new_foreign_client', $main::server_address, "KNOWN_SERVER", \%mydata);
+    push(@out_msg_l, $mymsg);
+
+    &main::daemon_log("$session_id INFO: register client $source ($mac_address)", 5);
+    &main::daemon_log("$session_id INFO: client version: $client_status - $client_revision", 5); 
+    return @out_msg_l;
+}
+
+
+#===  FUNCTION  ================================================================
+#         NAME:  who_has
+#   PARAMETERS:  msg_hash - hash - hash from function create_xml_hash
+#      RETURNS:  nothing 
+#  DESCRIPTION:  process this incoming message
+#===============================================================================
+sub who_has {
+    my ($msg_hash) = @_ ;
+    my @out_msg_l;
+    
+    # what is your search pattern
+    my $search_pattern = @{$msg_hash->{who_has}}[0];
+    my $search_element = @{$msg_hash->{$search_pattern}}[0];
+    &main::daemon_log("who_has-msg looking for $search_pattern $search_element", 7);
+
+    # scanning known_clients for search_pattern
+    my @host_addresses = keys %$main::known_clients;
+    my $known_clients_entries = length @host_addresses;
+    my $host_address;
+    foreach my $host (@host_addresses) {
+        my $client_element = $main::known_clients->{$host}->{$search_pattern};
+        if ($search_element eq $client_element) {
+            $host_address = $host;
+            last;
+        }
+    }
+        
+    # search was successful
+    if (defined $host_address) {
+        my $source = @{$msg_hash->{source}}[0];
+        my $out_hash = &create_xml_hash("who_has_i_do", $server_address, $source, "mac_address");
+        &add_content2xml_hash($out_hash, "mac_address", $search_element);
+        my $out_msg = &create_xml_string($out_hash);
+        push(@out_msg_l, $out_msg);
+    }
+    return @out_msg_l;
+}
+
+
+sub who_has_i_do {
+    my ($msg_hash) = @_ ;
+    my $header = @{$msg_hash->{header}}[0];
+    my $source = @{$msg_hash->{source}}[0];
+    my $search_param = @{$msg_hash->{$header}}[0];
+    my $search_value = @{$msg_hash->{$search_param}}[0];
+    print "\ngot msg $header:\nserver $source has client with $search_param $search_value\n";
+}
+
+
+sub new_syslog_config {
+    my ($mac_address, $session_id) = @_;
+    my $syslog_msg;
+
+       # Build LDAP connection
+    my $ldap_handle = &main::get_ldap_handle($session_id);
+       if( not defined $ldap_handle ) {
+               &main::daemon_log("$session_id ERROR: cannot connect to ldap: $ldap_uri", 1);
+               return;
+       }
+
+       # Perform search
+    my $ldap_res = $ldap_handle->search( base   => $ldap_base,
+               scope  => 'sub',
+               attrs => ['gotoSyslogServer'],
+               filter => "(&(objectClass=GOhard)(macaddress=$mac_address))");
+       if($ldap_res->code) {
+               &main::daemon_log("$session_id ".$ldap_res->error, 1);
+               return;
+       }
+
+       # Sanity check
+       if ($ldap_res->count != 1) {
+               &main::daemon_log("$session_id ERROR: client with mac address $mac_address not found/unique/active - not sending syslog config".
+                "\n\tbase: $ldap_base".
+                "\n\tscope: sub".
+                "\n\tattrs: gotoSyslogServer".
+                "\n\tfilter: (&(objectClass=GOhard)(macaddress=$mac_address))", 1);
+               return;
+       }
+
+       my $entry= $ldap_res->entry(0);
+    my $filter_dn = &Net::LDAP::Util::escape_filter_value($entry->dn);
+       my $syslog_server = $entry->get_value("gotoSyslogServer");
+
+    # If no syslog server is specified at host, just have a look at the object group of the host
+    # Perform object group search
+    if (not defined $syslog_server) {
+        my $ldap_res = $ldap_handle->search( base   => $ldap_base,
+                scope  => 'sub',
+                attrs => ['gotoSyslogServer'],
+                filter => "(&(objectClass=gosaGroupOfNames)(member=$filter_dn))");
+        if($ldap_res->code) {
+            &main::daemon_log("$session_id ".$ldap_res->error, 1);
+            return;
+        }
+
+        # Sanity check
+        if ($ldap_res->count != 1) {
+            &main::daemon_log("$session_id ERROR: client with mac address $mac_address not found/unique/active - not sending syslog config".
+                    "\n\tbase: $ldap_base".
+                    "\n\tscope: sub".
+                    "\n\tattrs: gotoSyslogServer".
+                    "\n\tfilter: (&(objectClass=gosaGroupOfNames)(member=$filter_dn))", 1);
+            return;
+        }
+
+        my $entry= $ldap_res->entry(0);
+        $syslog_server= $entry->get_value("gotoSyslogServer");
+    }
+
+    # Return if no syslog server specified
+    if (not defined $syslog_server) {
+        &main::daemon_log("$session_id WARNING: no syslog server specified for this host '$mac_address'", 3);
+        return;
+    }
+
+    # Add syslog server to 'syslog_config' message
+    my $syslog_msg_hash = &create_xml_hash("new_syslog_config", $server_address, $mac_address);
+    &add_content2xml_hash($syslog_msg_hash, "server", $syslog_server);
+
+    return &create_xml_string($syslog_msg_hash);
+}
+
+
+sub new_ntp_config {
+    my ($address, $session_id) = @_;
+    my $ntp_msg;
+
+       # Build LDAP connection
+    my $ldap_handle = &main::get_ldap_handle($session_id);
+       if( not defined $ldap_handle ) {
+               &main::daemon_log("$session_id ERROR: cannot connect to ldap: $ldap_uri", 1);
+               return;
+       }
+
+       # Perform search
+    my $ldap_res = $ldap_handle->search( base   => $ldap_base,
+               scope  => 'sub',
+               attrs => ['gotoNtpServer'],
+               filter => "(&(objectClass=GOhard)(macaddress=$address))");
+       if($ldap_res->code) {
+               &main::daemon_log("$session_id ".$ldap_res->error, 1);
+               return;
+       }
+
+       # Sanity check
+       if ($ldap_res->count != 1) {
+               &main::daemon_log("$session_id ERROR: client with mac address $address not found/unique/active - not sending ntp config".
+                "\n\tbase: $ldap_base".
+                "\n\tscope: sub".
+                "\n\tattrs: gotoNtpServer".
+                "\n\tfilter: (&(objectClass=GOhard)(macaddress=$address))", 1);
+               return;
+       }
+
+       my $entry= $ldap_res->entry(0);
+    my $filter_dn = &Net::LDAP::Util::escape_filter_value($entry->dn);
+       my @ntp_servers= $entry->get_value("gotoNtpServer");
+
+    # If no ntp server is specified at host, just have a look at the object group of the host
+    # Perform object group search
+    if ((not @ntp_servers) || (@ntp_servers == 0)) {
+        my $ldap_res = $ldap_handle->search( base   => $ldap_base,
+                scope  => 'sub',
+                attrs => ['gotoNtpServer'],
+                filter => "(&(objectClass=gosaGroupOfNames)(member=$filter_dn))");
+        if($ldap_res->code) {
+            &main::daemon_log("$session_id ".$ldap_res->error, 1);
+            return;
+        }
+
+        # Sanity check
+        if ($ldap_res->count != 1) {
+            &main::daemon_log("$session_id ERROR: client with mac address $address not found/unique/active - not sending ntp config".
+                    "\n\tbase: $ldap_base".
+                    "\n\tscope: sub".
+                    "\n\tattrs: gotoNtpServer".
+                    "\n\tfilter: (&(objectClass=gosaGroupOfNames)(member=$filter_dn))", 1);
+            return;
+        }
+
+        my $entry= $ldap_res->entry(0);
+        @ntp_servers= $entry->get_value("gotoNtpServer");
+    }
+
+    # Return if no ntp server specified
+    if ((not @ntp_servers) || (@ntp_servers == 0)) {
+        &main::daemon_log("$session_id WARNING: no ntp server specified for this host '$address'", 3);
+        return;
+    }
+    # Add each ntp server to 'ntp_config' message
+    my $ntp_msg_hash = &create_xml_hash("new_ntp_config", $server_address, $address);
+    foreach my $ntp_server (@ntp_servers) {
+        &add_content2xml_hash($ntp_msg_hash, "server", $ntp_server);
+    }
+
+    return &create_xml_string($ntp_msg_hash);
+}
+
+
+#===  FUNCTION  ================================================================
+#         NAME:  new_ldap_config
+#   PARAMETERS:  address - string - ip address and port of a host
+#      RETURNS:  gosa-si conform message
+#  DESCRIPTION:  send to address the ldap configuration found for dn gotoLdapServer
+#===============================================================================
+sub new_ldap_config {
+       my ($address, $session_id) = @_ ;
+
+       my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$address' OR macaddress LIKE '$address'";
+       my $res = $main::known_clients_db->select_dbentry( $sql_statement );
+
+       # check hit
+       my $hit_counter = keys %{$res};
+       if( not $hit_counter == 1 ) {
+               &main::daemon_log("$session_id ERROR: more or no hit found in known_clients_db by query '$sql_statement'", 1);
+        return;
+       }
+
+    $address = $res->{1}->{hostname};
+       my $macaddress = $res->{1}->{macaddress};
+       my $hostkey = $res->{1}->{hostkey};
+
+       if (not defined $macaddress) {
+               &main::daemon_log("$session_id ERROR: no mac address found for client $address", 1);
+               return;
+       }
+
+       # Build LDAP connection
+    my $ldap_handle = &main::get_ldap_handle($session_id);
+       if( not defined $ldap_handle ) {
+               &main::daemon_log("$session_id ERROR: cannot connect to ldap: $ldap_uri", 1);
+               return;
+       } 
+
+       # Perform search
+    $mesg = $ldap_handle->search( base   => $ldap_base,
+               scope  => 'sub',
+               attrs => ['dn', 'gotoLdapServer', 'gosaUnitTag', 'FAIclass'],
+               filter => "(&(objectClass=GOhard)(macaddress=$macaddress))");
+       if($mesg->code) {
+               &main::daemon_log("$session_id ".$mesg->error, 1);
+               return;
+       }
+
+       # Sanity check
+       if ($mesg->count != 1) {
+               &main::daemon_log("$session_id ERROR: client with mac address $macaddress not found/unique/active - not sending ldap config".
+                "\n\tbase: $ldap_base".
+                "\n\tscope: sub".
+                "\n\tattrs: dn, gotoLdapServer".
+                "\n\tfilter: (&(objectClass=GOhard)(macaddress=$macaddress))", 1);
+               return;
+       }
+
+       my $entry= $mesg->entry(0);
+       my $filter_dn= &Net::LDAP::Util::escape_filter_value($entry->dn);
+       my @servers= $entry->get_value("gotoLdapServer");
+       my $unit_tag= $entry->get_value("gosaUnitTag");
+       my @ldap_uris;
+       my $server;
+       my $base;
+       my $release;
+    my $dn= $entry->dn;
+
+       # Fill release if available
+       my $FAIclass= $entry->get_value("FAIclass");
+       if (defined $FAIclass && $FAIclass =~ /^.* :([A-Za-z0-9\/.]+).*$/) {
+               $release= $1;
+       }
+
+       # Do we need to look at an object class?
+       if (not @servers){
+               $mesg = $ldap_handle->search( base   => $ldap_base,
+                       scope  => 'sub',
+                       attrs => ['dn', 'gotoLdapServer', 'FAIclass'],
+                       filter => "(&(objectClass=gosaGroupOfNames)(member=$filter_dn))");
+               if($mesg->code) {
+                       &main::daemon_log("$session_id ERROR: unable to search for '(&(objectClass=gosaGroupOfNames)(member=$filter_dn))': ".$mesg->error, 1);
+                       return;
+               }
+
+               # Sanity check
+        if ($mesg->count != 1) {
+            &main::daemon_log("$session_id ERROR: client with mac address $macaddress not found/unique/active - not sending ldap config".
+                    "\n\tbase: $ldap_base".
+                    "\n\tscope: sub".
+                    "\n\tattrs: dn, gotoLdapServer, FAIclass".
+                    "\n\tfilter: (&(objectClass=gosaGroupOfNames)(member=$filter_dn))", 1);
+            return;
+        }
+
+               $entry= $mesg->entry(0);
+               $dn= $entry->dn;
+               @servers= $entry->get_value("gotoLdapServer");
+
+               if (not defined $release){
+                       $FAIclass= $entry->get_value("FAIclass");
+                       if (defined $FAIclass && $FAIclass =~ /^.* :([A-Za-z0-9\/.]+).*$/) {
+                               $release= $1;
+                       }
+               }
+       }
+
+       @servers= sort (@servers);
+
+    # complain if no ldap information found
+    if (@servers == 0) {
+        &main::daemon_log("$session_id ERROR: no gotoLdapServer information for LDAP entry '$dn'", 1);
+    }
+
+       foreach $server (@servers){
+                # Conversation for backward compatibility
+                if (not $server =~ /^\d+:[^:]+:ldap[^:]*:\/\// ) {
+                    if ($server =~ /^([^:]+):([^:]+)$/ ) {
+                      $server= "1:dummy:ldap://$1/$2";
+                    } elsif ($server =~ /^(\d+):([^:]+):(.*)$/ ) {
+                      $server= "$1:dummy:ldap://$2/$3";
+                    }
+                }
+
+                $base= $server;
+                $server =~ s%^[^:]+:[^:]+:(ldap.*://[^/]+)/.*$%$1%;
+                $base =~ s%^[^:]+:[^:]+:ldap.*://[^/]+/(.*)$%$1%;
+                push (@ldap_uris, $server);
+       }
+
+       # Assemble data package
+       my %data = ( 'ldap_uri'  => \@ldap_uris, 'ldap_base' => $base,
+               'ldap_cfg' => \@ldap_cfg, 'pam_cfg' => \@pam_cfg,'nss_cfg' => \@nss_cfg );
+       if (defined $release){
+               $data{'release'}= $release;
+       }
+
+       # Need to append GOto settings?
+       if (defined $goto_admin and defined $goto_secret){
+               $data{'goto_admin'}= $goto_admin;
+               $data{'goto_secret'}= $goto_secret;
+       }
+
+       # Append unit tag if needed
+       if (defined $unit_tag){
+
+               # Find admin base and department name
+               $mesg = $ldap_handle->search( base   => $ldap_base,
+                       scope  => 'sub',
+                       attrs => ['dn', 'ou'],
+                       filter => "(&(objectClass=gosaAdministrativeUnit)(gosaUnitTag=$unit_tag))");
+               #$mesg->code && die $mesg->error;
+               if($mesg->code) {
+                       &main::daemon_log($mesg->error, 1);
+                       return "error-unit-tag-count-0";
+               }
+
+               # Sanity check
+               if ($mesg->count != 1) {
+                       &main::daemon_log("WARNING: cannot find administrative unit for client with tag $unit_tag", 1);
+                       return "error-unit-tag-count-".$mesg->count;
+               }
+
+               $entry= $mesg->entry(0);
+               $data{'admin_base'}= $entry->dn;
+               $data{'department'}= $entry->get_value("ou");
+
+               # Append unit Tag
+               $data{'unit_tag'}= $unit_tag;
+       }
+
+       # Send information
+       return &build_msg("new_ldap_config", $server_address, $address, \%data);
+}
+
+
+#===  FUNCTION  ================================================================
+#         NAME:  hardware_config
+#   PARAMETERS:  address - string - ip address and port of a host
+#      RETURNS:  
+#  DESCRIPTION:  
+#===============================================================================
+sub hardware_config {
+       my ($msg, $msg_hash, $session_id) = @_ ;
+       my $address = @{$msg_hash->{source}}[0];
+       my $header = @{$msg_hash->{header}}[0];
+       my $gotoHardwareChecksum = @{$msg_hash->{gotoHardwareChecksum}}[0];
+
+       my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$address'";
+       my $res = $main::known_clients_db->select_dbentry( $sql_statement );
+
+       # check hit
+       my $hit_counter = keys %{$res};
+       if( not $hit_counter == 1 ) {
+               &main::daemon_log("$session_id ERROR: more or no hit found in known_clients_db by query by '$address'", 1);
+       }
+       my $macaddress = $res->{1}->{macaddress};
+       my $hostkey = $res->{1}->{hostkey};
+
+       if (not defined $macaddress) {
+               &main::daemon_log("$session_id ERROR: no mac address found for client $address", 1);
+               return;
+       }
+
+       # Build LDAP connection
+    my $ldap_handle = &main::get_ldap_handle($session_id);
+       if( not defined $ldap_handle ) {
+               &main::daemon_log("$session_id ERROR: cannot connect to ldap: $ldap_uri", 1);
+               return;
+       } 
+
+       # Perform search
+       $mesg = $ldap_handle->search(
+               base   => $ldap_base,
+               scope  => 'sub',
+               filter => "(&(objectClass=GOhard)(|(macAddress=$macaddress)(dhcpHWaddress=ethernet $macaddress)))"
+       );
+
+       if($mesg->count() == 0) {
+               &main::daemon_log("Host was not found in LDAP!", 1);
+
+               # set status = hardware_detection at jobqueue if entry exists
+               # TODO
+               # resolve plain name for host
+               my $func_dic = {table=>$main::job_queue_tn,
+                               primkey=>['macaddress', 'headertag'],
+                               timestamp=>&get_time,
+                               status=>'processing',
+                               result=>'none',
+                               progress=>'hardware-detection',
+                               headertag=>'trigger_action_reinstall',
+                               targettag=>$address,
+                               xmlmessage=>'none',
+                               macaddress=>$macaddress,
+                               plainname=>'none',
+                siserver=>'localhost',
+                modified=>'1',
+               };
+               my $hd_res = $main::job_db->add_dbentry($func_dic);
+               &main::daemon_log("$session_id INFO: add '$macaddress' to job queue as an installing job", 5);
+       
+       } else {
+               my $entry= $mesg->entry(0);
+               if (defined($entry->get_value("gotoHardwareChecksum"))) {
+                       if (! $entry->get_value("gotoHardwareChecksum") eq $gotoHardwareChecksum) {
+                               $entry->replace(gotoHardwareChecksum => $gotoHardwareChecksum);
+                               if($entry->update($ldap_handle)) {
+                                       &main::daemon_log("$session_id INFO: Hardware changed! Detection triggered.", 5);
+                               }
+                       } else {
+                               # Nothing to do
+                               return;
+                       }
+               } 
+       } 
+
+       # Assemble data package
+       my %data = ();
+
+       # Need to append GOto settings?
+       if (defined $goto_admin and defined $goto_secret){
+               $data{'goto_admin'}= $goto_admin;
+               $data{'goto_secret'}= $goto_secret;
+       }
+
+       # Send information
+       return &build_msg("detect_hardware", $server_address, $address, \%data);
+}
+
+sub server_matches {
+       my $target = shift;
+       my $target_ip = ($1) if $target =~ /^([0-9\.]*?):.*$/;
+       if(!defined($target_ip) or length($target_ip) == 0) {
+               return;
+       }
+
+       my $result = 0;
+
+       if($server_ip eq $target_ip) {
+               $result= 1;
+       } elsif ($target_ip eq "0.0.0.0") {
+               $result= 1;
+       } elsif ($server_ip eq "0.0.0.0") {     
+               if ($target_ip eq "127.0.0.1") {
+                       $result= 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($d));
+                               if(new NetAddr::IP($target_ip)->within(new NetAddr::IP($destination, $mask))) {
+                                       # destination matches route, save mac and exit
+                                       $result= 1;
+                                       last;
+                               }
+                       }
+               }
+       } else {
+               &main::daemon_log("Target ip $target_ip does not match Server ip $server_ip",1);
+       }
+
+       return $result;
+}
+
+# vim:ts=4:shiftwidth:expandtab
+1;