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index c190342b19c2e01b10346dff4e4434013edc7b88..3bc46cfd05861f2cd89c61a5bc51aba0bb9cf017 100644 (file)
use Net::DNS;
use Switch;
use Data::Dumper;
+use Socket;
# Don't start if some of the modules are missing
my $start_service=1;
END{}
my ($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, $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);
- $lookup_vendor=0;
- } else {
- &main::daemon_log("Loading OUI cache file suceeded!", 6);
- }
-}
my %cfg_defaults =
(
"ArpHandler" => {
- "activ" => [\$arp_activ, "on"],
+ "enabled" => [\$arp_enabled, "true"],
"interface" => [\$arp_interface, "all"],
},
"server" => {
&read_configfile();
# Don't start if some of the modules are missing
- if(($arp_activ eq 'on') && $start_service) {
- $ldap = Net::LDAP->new($ldap_uri);
- if (!$ldap) {
- &main::daemon_log("Could not connect to LDAP Server at $ldap_uri!\n$@", 1);
+ 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);
+ }
+ }
+ my $ldap_handle = &main::get_ldap_handle();
+ if(defined($ldap_uri) && length($ldap_uri)>0) {
+ if (!$ldap_handle) {
+ &main::daemon_log("Could not connect to LDAP Server at $ldap_uri!\n$@", 1);
+ }
} else {
- $ldap->bind($ldap_admin_dn, password => $ldap_admin_password);
+ $ldap_handle= undef;
}
# When interface is not configured (or 'all'), start arpwatch on all possible interfaces
&start(@_,$device);
},
_stop => sub {
- $ldap->unbind if (defined($ldap));
- $ldap->disconnect if (defined($ldap));
$_[KERNEL]->post( sprintf("arp_watch_$device") => 'shutdown' )
},
got_packet => \&got_packet,
&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,
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})) {
$hosts_database->{$packet->{source_haddr}}=$ldap_result;
": ".$hosts_database->{$packet->{source_haddr}}->{ipHostNumber}.
"/".$hosts_database->{$packet->{source_haddr}}->{macAddress},4);
&add_ldap_entry(
- $ldap,
+ $ldap_handle,
$ldap_base,
$hosts_database->{$packet->{source_haddr}}->{macAddress},
'new-system',
"->".$packet->{source_ipaddr}, 4);
$hosts_database->{$packet->{source_haddr}}->{ipHostNumber}= $packet->{source_ipaddr};
&change_ldap_entry(
- $ldap,
+ $ldap_handle,
$ldap_base,
$hosts_database->{$packet->{source_haddr}}->{macAddress},
'ip-changed',
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 $ldap_handle = &get_ldap_handle();
+ if(defined($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 $result;
# SEE ALSO: n/a/bin
#===============================================================================
sub add_ldap_entry {
- my ($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("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.", ".$result->error, 1);
+ }
+ } else {
+ &main::daemon_log("Not adding new Entry: LDAP disabled", 6);
+ }
+ return;
}
# SEE ALSO: n/a
#===============================================================================
sub change_ldap_entry {
- my ($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 ================================================================
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;
1;