X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=gosa-si%2Fmodules%2FArpHandler.pm;h=210e95654f4e0231a4f6888c3a3f46d351925232;hb=850ef70d7d016480405e610bd698a4b0ffc8d6c7;hp=4fa4d14a3fc777e0ac6e44f3fc29c5b5dc48a538;hpb=7cc3d107061f1d30ca8f882024f6201b072b72d0;p=gosa.git

diff --git a/gosa-si/modules/ArpHandler.pm b/gosa-si/modules/ArpHandler.pm
index 4fa4d14a3..210e95654 100644
--- a/gosa-si/modules/ArpHandler.pm
+++ b/gosa-si/modules/ArpHandler.pm
@@ -14,6 +14,7 @@ use Net::LDAP::Entry;
 use Net::DNS;
 use Switch;
 use Data::Dumper;
+use Socket;
 
 # Don't start if some of the modules are missing
 my $start_service=1;
@@ -33,32 +34,23 @@ BEGIN{
 END{}
 
 my ($timeout, $mailto, $mailfrom, $user, $group);
-my ($arp_activ, $arp_interface, $ldap_uri, $ldap_base, $ldap_admin_dn, $ldap_admin_password);
+my ($arp_enabled, $arp_interface, $arp_update, $ldap_uri, $ldap_base, $ldap_admin_dn, $ldap_admin_password);
 my $hosts_database={};
-my $resolver=Net::DNS::Resolver->new;
 my $ldap;
-if($lookup_vendor) {
-	eval("Net::MAC::Vendor::load_cache('file:///usr/lib/gosa-si/modules/oui.txt')");
-	if($@) {
-		&main::daemon_log("Loading OUI cache file failed! MAC Vendor lookup disabled", 1);
-		$lookup_vendor=0;
-	} else {
-		&main::daemon_log("Loading OUI cache file suceeded!", 6);
-	}
-}
 
 my %cfg_defaults =
 (
-	"arp" => {
-		"arp-enabled"           => [\$arp_activ,         "true"],
-		"arp-interface"       => [\$arp_interface,    "all"],
-	},
-	"server" => {
-		"ldap-uri"            => [\$ldap_uri,            ""],
-		"ldap-base"           => [\$ldap_base,           ""],
-		"ldap-admin_dn"       => [\$ldap_admin_dn,       ""],
-		"ldap-admin_password" => [\$ldap_admin_password, ""],
-	},
+    "ArpHandler" => {
+        "enabled"             => [\$arp_enabled,         "true"],
+        "interface"           => [\$arp_interface,       "all"],
+        "update-entries"      => [\$arp_update,          "false"],
+    },
+    "server" => {
+        "ldap-uri"            => [\$ldap_uri,            ""],
+        "ldap-base"           => [\$ldap_base,           ""],
+        "ldap-admin-dn"       => [\$ldap_admin_dn,       ""],
+        "ldap-admin-password" => [\$ldap_admin_password, ""],
+    },
 );
 
 #===  FUNCTION  ================================================================
@@ -67,9 +59,9 @@ my %cfg_defaults =
 #      RETURNS:  nothing
 #  DESCRIPTION:  read cfg_file and set variables
 #===============================================================================
-sub read_configfile {
+sub local_read_configfile {
 	my $cfg;
-	if( defined( $main::cfg_file) && ( length($main::cfg_file) > 0 )) {
+	if( defined( $main::cfg_file) && ( (-s $main::cfg_file) > 0 )) {
 		if( -r $main::cfg_file ) {
 			$cfg = Config::IniFiles->new( -file => $main::cfg_file );
 		} else {
@@ -87,18 +79,19 @@ sub read_configfile {
 }
 
 sub get_module_info {
-	my @info = (undef,
-		undef,
-	);
+	my @info = (undef, undef);
 
-	&read_configfile();
+	&local_read_configfile();
 	# Don't start if some of the modules are missing
-	if(($arp_activ eq 'true') && $start_service) {
-		$ldap = Net::LDAP->new($ldap_uri);
-		if (!$ldap) {
-			&main::daemon_log("Could not connect to LDAP Server at $ldap_uri!\n$@", 1);
-		} else {
-			$ldap->bind($ldap_admin_dn, password => $ldap_admin_password);
+	if(($arp_enabled eq 'true') && $start_service) {
+		if($lookup_vendor) {
+			eval("Net::MAC::Vendor::load_cache('file:///usr/lib/gosa-si/modules/oui.txt')");
+			if($@) {
+				&main::daemon_log("Loading OUI cache file failed! MAC Vendor lookup disabled", 1);
+				$lookup_vendor=0;
+			} else {
+				&main::daemon_log("Loading OUI cache file suceeded!", 6);
+			}
 		}
 
 		# When interface is not configured (or 'all'), start arpwatch on all possible interfaces
@@ -119,8 +112,6 @@ sub get_module_info {
 								&start(@_,$device);
 							},
 							_stop => sub {
-								$ldap->unbind if (defined($ldap));
-								$ldap->disconnect if (defined($ldap));
 								$_[KERNEL]->post( sprintf("arp_watch_$device") => 'shutdown' )
 							},
 							got_packet => \&got_packet,
@@ -137,8 +128,6 @@ sub get_module_info {
 							&start(@_,$device);
 						},
 						_stop => sub {
-							$ldap->unbind if (defined($ldap));
-							$ldap->disconnect if (defined($ldap));
 							$_[KERNEL]->post( sprintf("arp_watch_$device") => 'shutdown' )
 						},
 						got_packet => \&got_packet,
@@ -179,11 +168,11 @@ sub got_packet {
 	
 	my $capture_device = sprintf "%s", $kernel->alias_list($sender) =~ /^arp_watch_(.*)$/;
 
-	if(!exists($hosts_database->{$packet->{source_haddr}})) {
-		my $dnsresult= $resolver->search($packet->{source_ipaddr});
-		my $dnsname= (defined($dnsresult))?$dnsresult->{answer}[0]->{ptrdname}:$packet->{source_ipaddr};
+	my $ldap_handle = &main::get_ldap_handle(); 
+    if(!exists($hosts_database->{$packet->{source_haddr}})) {
+		my $dnsname= gethostbyaddr(inet_aton($packet->{source_ipaddr}), AF_INET) || $packet->{source_ipaddr};
 		my $ldap_result=&get_host_from_ldap($packet->{source_haddr});
-		if(exists($ldap_result->{dn})) {
+		if(exists($ldap_result->{dn}) and $arp_update eq "true") {
 			$hosts_database->{$packet->{source_haddr}}=$ldap_result;
 			$hosts_database->{$packet->{source_haddr}}->{dnsname}= $dnsname;
 			if(!exists($ldap_result->{ipHostNumber})) {
@@ -206,13 +195,13 @@ sub got_packet {
 				cn => (($dnsname =~ /^(\d){1,3}\.(\d){1,3}\.(\d){1,3}\.(\d){1,3}/) ? $dnsname : sprintf "%s", $dnsname =~ /([^\.]+)\./),
 				macVendor => (($lookup_vendor) ? &get_vendor_for_mac($packet->{source_haddr}) : "Unknown Vendor"),
 			};
-			&main::daemon_log("Host was not found in LDAP (".($hosts_database->{$packet->{source_haddr}}->{dnsname}).")",6);
+			&main::daemon_log("A DEBUG: Host was not found in LDAP (".($hosts_database->{$packet->{source_haddr}}->{dnsname}).")",522);
 			&main::daemon_log(
-				"New Host ".($hosts_database->{$packet->{source_haddr}}->{dnsname}).
+				"A INFO: New Host ".($hosts_database->{$packet->{source_haddr}}->{dnsname}).
 				": ".$hosts_database->{$packet->{source_haddr}}->{ipHostNumber}.
-				"/".$hosts_database->{$packet->{source_haddr}}->{macAddress},4);
+				"/".$hosts_database->{$packet->{source_haddr}}->{macAddress},5);
 			&add_ldap_entry(
-				$ldap, 
+				$ldap_handle, 
 				$ldap_base, 
 				$hosts_database->{$packet->{source_haddr}}->{macAddress},
 				'new-system',
@@ -222,14 +211,14 @@ sub got_packet {
 		}
 		$hosts_database->{$packet->{source_haddr}}->{device}= $capture_device;
 	} else {
-		if(!($hosts_database->{$packet->{source_haddr}}->{ipHostNumber} eq $packet->{source_ipaddr})) {
+		if(($arp_update eq "true") and !($hosts_database->{$packet->{source_haddr}}->{ipHostNumber} eq $packet->{source_ipaddr})) {
 			&main::daemon_log(
-				"IP Address change of MAC ".$packet->{source_haddr}.
+				"A INFO: IP Address change of MAC ".$packet->{source_haddr}.
 				": ".$hosts_database->{$packet->{source_haddr}}->{ipHostNumber}.
-				"->".$packet->{source_ipaddr}, 4);
+				"->".$packet->{source_ipaddr}, 5);
 			$hosts_database->{$packet->{source_haddr}}->{ipHostNumber}= $packet->{source_ipaddr};
 			&change_ldap_entry(
-				$ldap, 
+				$ldap_handle, 
 				$ldap_base, 
 				$hosts_database->{$packet->{source_haddr}}->{macAddress},
 				'ip-changed',
@@ -245,68 +234,41 @@ sub get_host_from_ldap {
 	my $mac=shift;
 	my $result={};
 		
-	my $ldap_result= &search_ldap_entry(
-		$ldap,
-		$ldap_base,
-		"(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))"
-	);
-
-	if(defined($ldap_result) && $ldap_result->count==1) {
-		if(exists($ldap_result->{entries}[0]) && 
-			exists($ldap_result->{entries}[0]->{asn}->{objectName}) && 
-			exists($ldap_result->{entries}[0]->{asn}->{attributes})) {
-
-			for my $attribute(@{$ldap_result->{entries}[0]->{asn}->{attributes}}) {
-				if($attribute->{type} eq 'cn') {
-					$result->{cn} = $attribute->{vals}[0];
-				}
-				if($attribute->{type} eq 'macAddress') {
-					$result->{macAddress} = $attribute->{vals}[0];
-				}
-				if($attribute->{type} eq 'dhcpHWAddress') {
-					$result->{dhcpHWAddress} = $attribute->{vals}[0];
-				}
-				if($attribute->{type} eq 'ipHostNumber') {
-					$result->{ipHostNumber} = $attribute->{vals}[0];
+    my $ldap_handle = &main::get_ldap_handle();     
+	if(defined($ldap_handle)) {
+		my $ldap_result= &search_ldap_entry(
+			$ldap_handle,
+			$ldap_base,
+			"(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))"
+		);
+
+		if(defined($ldap_result) && $ldap_result->count==1) {
+			if(exists($ldap_result->{entries}[0]) && 
+				exists($ldap_result->{entries}[0]->{asn}->{objectName}) && 
+				exists($ldap_result->{entries}[0]->{asn}->{attributes})) {
+
+				for my $attribute(@{$ldap_result->{entries}[0]->{asn}->{attributes}}) {
+					if($attribute->{type} eq 'cn') {
+						$result->{cn} = $attribute->{vals}[0];
+					}
+					if($attribute->{type} eq 'macAddress') {
+						$result->{macAddress} = $attribute->{vals}[0];
+					}
+					if($attribute->{type} eq 'dhcpHWAddress') {
+						$result->{dhcpHWAddress} = $attribute->{vals}[0];
+					}
+					if($attribute->{type} eq 'ipHostNumber') {
+						$result->{ipHostNumber} = $attribute->{vals}[0];
+					}
 				}
 			}
+			$result->{dn} = $ldap_result->{entries}[0]->{asn}->{objectName};
 		}
-		$result->{dn} = $ldap_result->{entries}[0]->{asn}->{objectName};
 	}
 
 	return $result;
 }
 
-#===  FUNCTION  ================================================================
-#         NAME:  get_interfaces 
-#   PARAMETERS:  none
-#      RETURNS:  (list of interfaces) 
-#  DESCRIPTION:  Uses proc fs (/proc/net/dev) to get list of interfaces.
-#===============================================================================
-sub get_interfaces {
-	my @result;
-	my $PROC_NET_DEV= ('/proc/net/dev');
-
-	open(PROC_NET_DEV, "<$PROC_NET_DEV")
-		or die "Could not open $PROC_NET_DEV";
-
-	my @ifs = <PROC_NET_DEV>;
-
-	close(PROC_NET_DEV);
-
-	# Eat first two line
-	shift @ifs;
-	shift @ifs;
-
-	chomp @ifs;
-	foreach my $line(@ifs) {
-		my $if= (split /:/, $line)[0];
-		$if =~ s/^\s+//;
-		push @result, $if;
-	}
-
-	return @result;
-}
 
 #===  FUNCTION  ================================================================
 #         NAME:  get_mac 
@@ -349,7 +311,7 @@ sub get_vendor_for_mac {
 		if(length($vendor) > 0) {
 			$result= @{$vendor}[0];
 		}
-		&main::daemon_log("Looking up Vendor for MAC ".$mac.": $result", 4);
+		&main::daemon_log("A INFO: Looking up Vendor for MAC ".$mac.": $result", 5);
 	}
 
 	return $result;
@@ -366,41 +328,45 @@ sub get_vendor_for_mac {
 #     SEE ALSO:  n/a/bin
 #===============================================================================
 sub add_ldap_entry {
-    my ($ldap_tree, $ldap_base, $mac, $gotoSysStatus, $ip, $interface, $desc) = @_;
-    my $dn = "cn=".$hosts_database->{$mac}->{cn}.",ou=incoming,$ldap_base";
-    my $s_res = &search_ldap_entry($ldap_tree, $ldap_base, "(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))");
-    my $c_res = (defined($s_res))?$s_res->count:0;
-    if($c_res == 1) {
-        &main::daemon_log("WARNING: macAddress $mac already in LDAP", 1);
-        return;
-    } elsif($c_res > 0) {
-        &main::daemon_log("ERROR: macAddress $mac exists $c_res times in LDAP", 1);
-        return;
-    }
-
-    # create LDAP entry 
-    my $entry = Net::LDAP::Entry->new( $dn );
-    $entry->dn($dn);
-    $entry->add("objectClass" => "goHard");
-    $entry->add("cn" => $hosts_database->{$mac}->{cn});
-    $entry->add("macAddress" => $mac);
-    if(defined $gotoSysStatus) {$entry->add("gotoSysStatus" => $gotoSysStatus)}
-    if(defined $ip) {$entry->add("ipHostNumber" => $ip) }
-    #if(defined $interface) { }
-    if(defined $desc) {$entry->add("description" => $desc) }
-    
-    # submit entry to LDAP
-	my $result = $entry->update ($ldap_tree); 
-        
-    # for $result->code constants please look at Net::LDAP::Constant
-    if($result->code == 68) {   # entry already exists 
-        &main::daemon_log("WARNING: $dn ".$result->error, 3);
-    } elsif($result->code == 0) {   # everything went fine
-        &main::daemon_log("add entry $dn to ldap", 1);
-    } else {  # if any other error occur
-        &main::daemon_log("ERROR: $dn, ".$result->code.", ".$result->error, 1);
-    }
-    return;
+	my ($ldap_tree, $ldap_base, $mac, $gotoSysStatus, $ip, $interface, $desc) = @_;
+	if(defined($ldap_tree)) {
+		my $dn = "cn=".$hosts_database->{$mac}->{cn}.",ou=incoming,$ldap_base";
+		my $s_res = &search_ldap_entry($ldap_tree, $ldap_base, "(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))");
+		my $c_res = (defined($s_res))?$s_res->count:0;
+		if($c_res == 1) {
+			&main::daemon_log("A WARNING: macAddress $mac already in LDAP", 3);
+			return;
+		} elsif($c_res > 0) {
+			&main::daemon_log("A ERROR: macAddress $mac exists $c_res times in LDAP", 1);
+			return;
+		}
+
+		# create LDAP entry 
+		my $entry = Net::LDAP::Entry->new( $dn );
+		$entry->dn($dn);
+		$entry->add("objectClass" => "GOhard");
+		$entry->add("cn" => $hosts_database->{$mac}->{cn});
+		$entry->add("macAddress" => $mac);
+		if(defined $gotoSysStatus) {$entry->add("gotoSysStatus" => $gotoSysStatus)}
+		if(defined $ip) {$entry->add("ipHostNumber" => $ip) }
+		#if(defined $interface) { }
+		if(defined $desc) {$entry->add("description" => $desc) }
+
+		# submit entry to LDAP
+		my $result = $entry->update ($ldap_tree); 
+
+		# for $result->code constants please look at Net::LDAP::Constant
+		if($result->code == 68) {   # entry already exists 
+			&main::daemon_log("A WARNING: $dn ".$result->error, 3);
+		} elsif($result->code == 0) {   # everything went fine
+			&main::daemon_log("A INFO: Add entry $dn to ldap", 5);
+		} else {  # if any other error occur
+			&main::daemon_log("A ERROR: $dn, ".$result->code.", ".$result->error, 1);
+		}
+	} else {
+		&main::daemon_log("A INFO: Not adding new Entry: LDAP disabled", 5);
+	}
+	return;
 }
 
 
@@ -415,39 +381,43 @@ sub add_ldap_entry {
 #     SEE ALSO:  n/a
 #===============================================================================
 sub change_ldap_entry {
-    my ($ldap_tree, $ldap_base, $mac, $gotoSysStatus, $ip) = @_;
-    
-    # check if ldap_entry exists or not
-    my $s_res = &search_ldap_entry($ldap_tree, $ldap_base, "(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))");
-    my $c_res = (defined $s_res)?$s_res->count:0;
-    if($c_res == 0) {
-        &main::daemon_log("WARNING: macAddress $mac not in LDAP", 1);
-        return;
-    } elsif($c_res > 1) {
-        &main::daemon_log("ERROR: macAddress $mac exists $c_res times in LDAP", 1);
-        return;
-    }
-
-    my $s_res_entry = $s_res->pop_entry();
-    my $dn = $s_res_entry->dn();
-	my $replace = {
-		'gotoSysStatus' => $gotoSysStatus,
-	};
-	if (defined($ip)) {
-		$replace->{'ipHostNumber'} = $ip;
+	my ($ldap_tree, $ldap_base, $mac, $gotoSysStatus, $ip) = @_;
+
+	if(defined($ldap_tree)) {
+		# check if ldap_entry exists or not
+		my $s_res = &search_ldap_entry($ldap_tree, $ldap_base, "(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))");
+		my $c_res = (defined $s_res)?$s_res->count:0;
+		if($c_res == 0) {
+			&main::daemon_log("WARNING: macAddress $mac not in LDAP", 1);
+			return;
+		} elsif($c_res > 1) {
+			&main::daemon_log("ERROR: macAddress $mac exists $c_res times in LDAP", 1);
+			return;
+		}
+
+		my $s_res_entry = $s_res->pop_entry();
+		my $dn = $s_res_entry->dn();
+		my $replace = {
+			'gotoSysStatus' => $gotoSysStatus,
+		};
+		if (defined($ip)) {
+			$replace->{'ipHostNumber'} = $ip;
+		}
+		my $result = $ldap_tree->modify( $dn, replace => $replace );
+
+		# for $result->code constants please look at Net::LDAP::Constant
+		if($result->code == 32) {   # entry doesnt exists 
+			&add_ldap_entry($mac, $gotoSysStatus);
+		} elsif($result->code == 0) {   # everything went fine
+			&main::daemon_log("entry $dn changed successful", 1);
+		} else {  # if any other error occur
+			&main::daemon_log("ERROR: $dn, ".$result->code.", ".$result->error, 1);
+		}
+	} else {
+		&main::daemon_log("Not changing Entry: LDAP disabled", 6);
 	}
-    my $result = $ldap->modify( $dn, replace => $replace );
-
-    # for $result->code constants please look at Net::LDAP::Constant
-    if($result->code == 32) {   # entry doesnt exists 
-        &add_ldap_entry($mac, $gotoSysStatus);
-    } elsif($result->code == 0) {   # everything went fine
-        &main::daemon_log("entry $dn changed successful", 1);
-    } else {  # if any other error occur
-        &main::daemon_log("ERROR: $dn, ".$result->code.", ".$result->error, 1);
-    }
-
-    return;
+
+	return;
 }
 
 #===  FUNCTION  ================================================================
@@ -470,82 +440,9 @@ sub search_ldap_entry {
 			base   => $sub_tree,
 			filter => $search_string,
 		) or &main::daemon_log("cannot perform search at ldap: $@", 1);
-		#if(defined $msg) {
-    	#    print $sub_tree."\t".$search_string."\t";
-    	#    print $msg->count."\n";
-    	#    foreach my $entry ($msg->entries) { $entry->dump; };
-    	#}
 	}
 	return $msg;
 }
-#        $ldap = Net::LDAP->new( "localhost" ) or die "$@";
-#        $ldap->bind($bind_phrase,
-#                    password => $password,
-#                    ) ;
-#        
-#        switch($arp_sig) {
-#            case 0 {&change_ldap_entry($ldap, $ldap_base, 
-#                                      $mac, "ip-changed",
-#                                      )} 
-#            case 1 {&change_ldap_entry($ldap, $ldap_base, 
-#                                      $mac, "mac-not-whitelisted",
-#                                      )}
-#            case 2 {&change_ldap_entry($ldap, $ldap_base, 
-#                                      $mac, "mac-in-blacklist",
-#                                      )}
-#            case 3 {&add_ldap_entry($ldap, $ldap_base, 
-#                                   $mac, "new-mac-address", $ip, 
-#                                   $interface, $desc, 
-#                                   )}
-#            case 4 {&change_ldap_entry($ldap, $ldap_base, 
-#                                      $mac, "unauthorized-arp-request",
-#                                      )}
-#            case 5 {&change_ldap_entry($ldap, $ldap_base, 
-#                                      $mac, "abusive-number-of-arp-requests",
-#                                      )}
-#            case 6 {&change_ldap_entry($ldap, $ldap_base, 
-#                                      $mac, "ether-and-arp-mac-differs",
-#                                      )}
-#            case 7 {&change_ldap_entry($ldap, $ldap_base, 
-#                                      $mac, "flood-detected",
-#                                      )}
-#            case 8 {&add_ldap_entry($ldap, $ldap_base, 
-#                                   $mac, $ip, "new-system",
-#                                   )}
-#            case 9 {&change_ldap_entry($ldap, $ldap_base, 
-#                                      $mac, "mac-changed",
-#                                      )}
-#        }
-#
-#
-        # ldap search
-#        my $base_phrase = "dc=gonicus,dc=de";
-#        my $filter_phrase = "cn=keinesorge";
-#        my $attrs_phrase = "cn macAdress";
-#        my $msg_search = $ldap->search( base   => $base_phrase,
-#                                        filter => $filter_phrase,
-#                                        attrs => $attrs_phrase,
-#                                        );
-#        $msg_search->code && die $msg_search->error;
-#        
-#        my @entries = $msg_search->entries;
-#        my $max = $msg_search->count;
-#        print "anzahl der entries: $max\n";
-#        my $i;
-#        for ( $i = 0 ; $i < $max ; $i++ ) {
-#            my $entry = $msg_search->entry ( $i );
-#            foreach my $attr ( $entry->attributes ) {
-#                if( not $attr eq "cn") {
-#                    next;
-#                }
-#                print join( "\n ", $attr, $entry->get_value( $attr ) ), "\n\n";
-#            }
-#        }
-		#
-		#        # ldap add
-		#       
-		#        
-		#        $ldap->unbind;
-		#        exit;
 
+# vim:ts=4:shiftwidth:expandtab
 1;