Code

9c5ad6086a36696cf5a091cdfd37bbeab5e719d5
[gosa.git] / gosa-si / modules / SIPackages.pm
1 package SIPackages;
3 use Exporter;
4 @ISA = ("Exporter");
6 # Each module has to have a function 'process_incoming_msg'. This function works as a interface to gosa-sd and receives the msg hash from gosa-sd. 'process_incoming_function checks, wether it has a function to process the incoming msg and forward the msg to it. 
9 use strict;
10 use warnings;
11 use GOSA::GosaSupportDaemon;
12 use IO::Socket::INET;
13 use XML::Simple;
14 use Data::Dumper;
15 use NetAddr::IP;
16 use Net::LDAP;
17 use Socket;
18 use Net::hostent;
19 use Net::DNS;
21 BEGIN{}
22 END {}
24 my ($server_ip, $server_mac_address, $server_port, $SIPackages_key, $max_clients, $ldap_uri, $ldap_base, $ldap_admin_dn, $ldap_admin_password, $server_interface);
25 my ($bus_activ, $bus_key, $bus_ip, $bus_port);
26 my $server;
27 my $network_interface;
28 my $no_bus;
29 my (@ldap_cfg, @pam_cfg, @nss_cfg, $goto_admin, $goto_secret, $gosa_unit_tag);
32 my %cfg_defaults = (
33 "bus" => {
34     "activ" => [\$bus_activ, "on"],
35     "key" => [\$bus_key, ""],
36     "ip" => [\$bus_ip, ""],
37     "port" => [\$bus_port, "20080"],
38     },
39 "server" => {
40     "ip" => [\$server_ip, "0.0.0.0"],
41     "mac-address" => [\$server_mac_address, "00:00:00:00:00"],
42     "port" => [\$server_port, "20081"],
43     "ldap-uri" => [\$ldap_uri, ""],
44     "ldap-base" => [\$ldap_base, ""],
45     "ldap-admin-dn" => [\$ldap_admin_dn, ""],
46     "ldap-admin-password" => [\$ldap_admin_password, ""],
47     "max-clients" => [\$max_clients, 100],
48         "gosa-unit-tag" => [\$gosa_unit_tag, ""],
49     },
50 "SIPackages" => {
51     "key" => [\$SIPackages_key, ""],
52     },
53 );
55 ### START #####################################################################
57 # read configfile and import variables
58 &read_configfile();
60 $network_interface= &get_interface_for_ip($server_ip);
61 $server_mac_address= &get_mac($network_interface);
63 # Unit tag can be defined in config
64 if((not defined($gosa_unit_tag)) || length($gosa_unit_tag) == 0) {
65         # Read gosaUnitTag from LDAP
66         my $tmp_ldap= Net::LDAP->new($ldap_uri);
67         if(defined($tmp_ldap)) {
68                 &main::daemon_log("Searching for servers gosaUnitTag with mac address $server_mac_address",6);
69                 my $mesg= $tmp_ldap->bind($ldap_admin_dn, password => $ldap_admin_password);
70                 # Perform search for Unit Tag
71                 $mesg = $tmp_ldap->search(
72                         base   => $ldap_base,
73                         scope  => 'sub',
74                         attrs  => ['gosaUnitTag'],
75                         filter => "(macaddress=$server_mac_address)"
76                 );
78                 if ($mesg->count == 1) {
79                         my $entry= $mesg->entry(0);
80                         my $unit_tag= $entry->get_value("gosaUnitTag");
81                         if(defined($unit_tag) && length($unit_tag) > 0) {
82                                 &main::daemon_log("Detected gosaUnitTag $unit_tag for creating entries", 4);
83                                 $gosa_unit_tag= $unit_tag;
84                         }
85                 } else {
86                         # Perform another search for Unit Tag
87                         my $hostname= `hostname -f`;
88                         &main::daemon_log("Searching for servers gosaUnitTag with hostname $hostname",6);
89                         $mesg = $tmp_ldap->search(
90                                 base   => $ldap_base,
91                                 scope  => 'sub',
92                                 attrs  => ['gosaUnitTag'],
93                                 filter => "(&(cn=$hostname)(objectClass=goServer))"
94                         );
95                         if ($mesg->count == 1) {
96                                 my $entry= $mesg->entry(0);
97                                 my $unit_tag= $entry->get_value("gosaUnitTag");
98                                 if(defined($unit_tag) && length($unit_tag) > 0) {
99                                         &main::daemon_log("Detected gosaUnitTag $unit_tag for creating entries", 4);
100                                         $gosa_unit_tag= $unit_tag;
101                                 }
102                         } else {
103                                 # Perform another search for Unit Tag
104                                 $hostname= `hostname -s`;
105                                 &main::daemon_log("Searching for servers gosaUnitTag with hostname $hostname",6);
106                                 $mesg = $tmp_ldap->search(
107                                         base   => $ldap_base,
108                                         scope  => 'sub',
109                                         attrs  => ['gosaUnitTag'],
110                                         filter => "(&(cn=$hostname)(objectClass=goServer))"
111                                 );
112                                 if ($mesg->count == 1) {
113                                         my $entry= $mesg->entry(0);
114                                         my $unit_tag= $entry->get_value("gosaUnitTag");
115                                         if(defined($unit_tag) && length($unit_tag) > 0) {
116                                                 &main::daemon_log("Detected gosaUnitTag $unit_tag for creating entries", 4);
117                                                 $gosa_unit_tag= $unit_tag;
118                                         }
119                                 } else {
120                                         &main::daemon_log("Not using gosaUnitTag", 6);
121                                 }
122                         }
123                 }
124         } else {
125                 &main::daemon_log("Using gosaUnitTag from config-file: $gosa_unit_tag",6);
126         }
127         $tmp_ldap->unbind;
130 # complete addresses
131 #if( $server_ip eq "0.0.0.0" ) {
132 #    $server_ip = "127.0.0.1";
133 #}
134 my $server_address = "$server_ip:$server_port";
135 $main::server_address = $server_address;
136 my $bus_address = "$bus_ip:$bus_port";
137 $main::bus_address = $bus_address;
139 # create general settings for this module
140 my $xml = new XML::Simple();
142 # register at bus
143 if ($main::no_bus > 0) {
144     $bus_activ = "off"
146 if($bus_activ eq "on") {
147     &register_at_bus();
150 # add myself to known_server_db
151 my $res = $main::known_server_db->add_dbentry( {table=>'known_server',
152         primkey=>'hostname',
153         hostname=>$server_address,
154         status=>'myself',
155         hostkey=>$SIPackages_key,
156         timestamp=>&get_time,
157         } );
161 ### functions #################################################################
164 sub get_module_info {
165     my @info = ($server_address,
166                 $SIPackages_key,
167                 );
168     return \@info;
172 sub do_wake {
173         my $host    = shift;
174         my $ipaddr  = shift || '255.255.255.255';
175         my $port    = getservbyname('discard', 'udp');
177         my ($raddr, $them, $proto);
178         my ($hwaddr, $hwaddr_re, $pkt);
180         # get the hardware address (ethernet address)
182         $hwaddr_re = join(':', ('[0-9A-Fa-f]{1,2}') x 6);
183         if ($host =~ m/^$hwaddr_re$/) {
184                 $hwaddr = $host;
185         } else {
186                 # $host is not a hardware address, try to resolve it
187                 my $ip_re = join('\.', ('([0-9]|[1-9][0-9]|1[0-9]{2}|2([0-4][0-9]|5[0-5]))') x 4);
188                 my $ip_addr;
189                 if ($host =~ m/^$ip_re$/) {
190                         $ip_addr = $host;
191                 } else {
192                         my $h;
193                         unless ($h = gethost($host)) {
194                                 return undef;
195                         }
196                         $ip_addr = inet_ntoa($h->addr);
197                 }
198         }
200         # Generate magic sequence
201         foreach (split /:/, $hwaddr) {
202                 $pkt .= chr(hex($_));
203         }
204         $pkt = chr(0xFF) x 6 . $pkt x 16;
206         # Allocate socket and send packet
208         $raddr = gethostbyname($ipaddr)->addr;
209         $them = pack_sockaddr_in($port, $raddr);
210         $proto = getprotobyname('udp');
212         socket(S, AF_INET, SOCK_DGRAM, $proto) or die "socket : $!";
213         setsockopt(S, SOL_SOCKET, SO_BROADCAST, 1) or die "setsockopt : $!";
215         send(S, $pkt, 0, $them) or die "send : $!";
216         close S;
220 #===  FUNCTION  ================================================================
221 #         NAME:  read_configfile
222 #   PARAMETERS:  cfg_file - string -
223 #      RETURNS:  nothing
224 #  DESCRIPTION:  read cfg_file and set variables
225 #===============================================================================
226 sub read_configfile {
227     my $cfg;
228     if( defined( $main::cfg_file) && ( length($main::cfg_file) > 0 )) {
229         if( -r $main::cfg_file ) {
230             $cfg = Config::IniFiles->new( -file => $main::cfg_file );
231         } else {
232             print STDERR "Couldn't read config file!";
233         }
234     } else {
235         $cfg = Config::IniFiles->new() ;
236     }
237     foreach my $section (keys %cfg_defaults) {
238         foreach my $param (keys %{$cfg_defaults{ $section }}) {
239             my $pinfo = $cfg_defaults{ $section }{ $param };
240             ${@$pinfo[0]} = $cfg->val( $section, $param, @$pinfo[1] );
241         }
242     }
244     # Read non predefined sections
245     my $param;
246     if ($cfg->SectionExists('ldap')){
247                 foreach $param ($cfg->Parameters('ldap')){
248                         push (@ldap_cfg, "$param ".$cfg->val('ldap', $param));
249                 }
250     }
251     if ($cfg->SectionExists('pam_ldap')){
252                 foreach $param ($cfg->Parameters('pam_ldap')){
253                         push (@pam_cfg, "$param ".$cfg->val('pam_ldap', $param));
254                 }
255     }
256     if ($cfg->SectionExists('nss_ldap')){
257                 foreach $param ($cfg->Parameters('nss_ldap')){
258                         push (@nss_cfg, "$param ".$cfg->val('nss_ldap', $param));
259                 }
260     }
261     if ($cfg->SectionExists('goto')){
262         $goto_admin= $cfg->val('goto', 'terminal_admin');
263         $goto_secret= $cfg->val('goto', 'terminal_secret');
264     } else {
265         $goto_admin= undef;
266         $goto_secret= undef;
267     }
271 #===  FUNCTION  ================================================================
272 #         NAME:  get_interface_for_ip
273 #   PARAMETERS:  ip address (i.e. 192.168.0.1)
274 #      RETURNS:  array: list of interfaces if ip=0.0.0.0, matching interface if found, undef else
275 #  DESCRIPTION:  Uses proc fs (/proc/net/dev) to get list of interfaces.
276 #===============================================================================
277 sub get_interface_for_ip {
278         my $result;
279         my $ip= shift;
280         if ($ip && length($ip) > 0) {
281                 my @ifs= &get_interfaces();
282                 if($ip eq "0.0.0.0") {
283                         $result = "all";
284                 } else {
285                         foreach (@ifs) {
286                                 my $if=$_;
287                                 if(get_ip($if) eq $ip) {
288                                         $result = $if;
289                                 }
290                         }       
291                 }
292         }       
293         return $result;
296 #===  FUNCTION  ================================================================
297 #         NAME:  get_interfaces 
298 #   PARAMETERS:  none
299 #      RETURNS:  (list of interfaces) 
300 #  DESCRIPTION:  Uses proc fs (/proc/net/dev) to get list of interfaces.
301 #===============================================================================
302 sub get_interfaces {
303         my @result;
304         my $PROC_NET_DEV= ('/proc/net/dev');
306         open(PROC_NET_DEV, "<$PROC_NET_DEV")
307                 or die "Could not open $PROC_NET_DEV";
309         my @ifs = <PROC_NET_DEV>;
311         close(PROC_NET_DEV);
313         # Eat first two line
314         shift @ifs;
315         shift @ifs;
317         chomp @ifs;
318         foreach my $line(@ifs) {
319                 my $if= (split /:/, $line)[0];
320                 $if =~ s/^\s+//;
321                 push @result, $if;
322         }
324         return @result;
327 #===  FUNCTION  ================================================================
328 #         NAME:  get_mac 
329 #   PARAMETERS:  interface name (i.e. eth0)
330 #      RETURNS:  (mac address) 
331 #  DESCRIPTION:  Uses ioctl to get mac address directly from system.
332 #===============================================================================
333 sub get_mac {
334         my $ifreq= shift;
335         my $result;
336         if ($ifreq && length($ifreq) > 0) { 
337                 if($ifreq eq "all") {
338                         $result = "00:00:00:00:00:00";
339                 } else {
340                         my $SIOCGIFHWADDR= 0x8927;     # man 2 ioctl_list
342                         # A configured MAC Address should always override a guessed value
343                         if ($server_mac_address and length($server_mac_address) > 0) {
344                                 $result= $server_mac_address;
345                         }
347                         socket SOCKET, PF_INET, SOCK_DGRAM, getprotobyname('ip')
348                                 or die "socket: $!";
350                         if(ioctl SOCKET, $SIOCGIFHWADDR, $ifreq) {
351                                 my ($if, $mac)= unpack 'h36 H12', $ifreq;
353                                 if (length($mac) > 0) {
354                                         $mac=~ m/^([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])$/;
355                                         $mac= sprintf("%s:%s:%s:%s:%s:%s", $1, $2, $3, $4, $5, $6);
356                                         $result = $mac;
357                                 }
358                         }
359                 }
360         }
361         return $result;
365 #===  FUNCTION  ================================================================
366 #         NAME:  register_at_bus
367 #   PARAMETERS:  nothing
368 #      RETURNS:  nothing
369 #  DESCRIPTION:  creates an entry in known_daemons and send a 'here_i_am' msg to bus
370 #===============================================================================
371 sub register_at_bus {
373     # add bus to known_server_db
374     my $res = $main::known_server_db->add_dbentry( {table=>'known_server',
375                                                     primkey=>'hostname',
376                                                     hostname=>$bus_address,
377                                                     status=>'bus',
378                                                     hostkey=>$bus_key,
379                                                     timestamp=>&get_time,
380                                                 } );
381     my $msg_hash = &create_xml_hash("here_i_am", $server_address, $bus_address);
382     my $msg = &create_xml_string($msg_hash);
384     &main::send_msg_to_target($msg, $bus_address, $bus_key, "here_i_am");
385     return $msg;
389 #===  FUNCTION  ================================================================
390 #         NAME:  process_incoming_msg
391 #   PARAMETERS:  crypted_msg - string - incoming crypted message
392 #      RETURNS:  nothing
393 #  DESCRIPTION:  handels the proceeded distribution to the appropriated functions
394 #===============================================================================
395 sub process_incoming_msg {
396     my ($msg, $msg_hash, $remote_ip) = @_ ;
397     my $error = 0;
398     my $host_name;
399     my $host_key;
400     my @out_msg_l;
402     # process incoming msg
403     my $header = @{$msg_hash->{header}}[0]; 
404     my @target_l = @{$msg_hash->{target}};
406     &main::daemon_log("SIPackages: msg to process: $header", 3);
407     &main::daemon_log("$msg", 8);
409     if( 0 == length @target_l){     
410         &main::daemon_log("ERROR: no target specified for msg $header", 1);
411         $error++;
412     }
414     if( 1 == length @target_l) {
415         my $target = $target_l[0];
416                 if(&server_matches($target)) {
417             if ($header eq 'new_key') {
418                 @out_msg_l = &new_key($msg_hash)
419             } elsif ($header eq 'here_i_am') {
420                 @out_msg_l = &here_i_am($msg_hash)
421             } elsif ($header eq 'who_has') {
422                 @out_msg_l = &who_has($msg_hash)
423             } elsif ($header eq 'who_has_i_do') {
424                 @out_msg_l = &who_has_i_do($msg_hash)
425             } elsif ($header eq 'got_ping') {
426                 @out_msg_l = &got_ping($msg_hash)
427             } elsif ($header eq 'get_load') {
428                 @out_msg_l = &execute_actions($msg_hash)
429             } elsif ($header eq 'detected_hardware') {
430                 @out_msg_l = &process_detected_hardware($msg_hash)
431             } elsif ($header eq 'trigger_wake') {
432                 foreach (@{$msg_hash->{macAddress}}){
433                     &main::daemon_log("SIPackages: trigger wake for $_", 1);
434                     do_wake($_);
435                 }
437             } else {
438                 &main::daemon_log("ERROR: $header is an unknown core function", 1);
439                 $error++;
440             }
441         }
442                 else {
443                         &main::daemon_log("msg is not for gosa-si-server '$server_address', deliver it to target '$target'", 5);
444                         push(@out_msg_l, $msg);
445                 }
446     }
448 #    if( $error == 0) {
449 #        if( 0 == @out_msg_l ) {
450 #                       push(@out_msg_l, $msg);
451 #        }
452 #    }
453     
454     return \@out_msg_l;
458 #===  FUNCTION  ================================================================
459 #         NAME:  got_ping
460 #   PARAMETERS:  msg_hash - hash - hash from function create_xml_hash
461 #      RETURNS:  nothing
462 #  DESCRIPTION:  process this incoming message
463 #===============================================================================
464 sub got_ping {
465     my ($msg_hash) = @_;
466     
467     my $source = @{$msg_hash->{source}}[0];
468     my $target = @{$msg_hash->{target}}[0];
469     my $header = @{$msg_hash->{header}}[0];
470     
471     if(exists $main::known_daemons->{$source}) {
472         &main::add_content2known_daemons(hostname=>$source, status=>$header);
473     } else {
474         &main::add_content2known_clients(hostname=>$source, status=>$header);
475     }
476     
477     return;
481 #===  FUNCTION  ================================================================
482 #         NAME:  new_passwd
483 #   PARAMETERS:  msg_hash - ref - hash from function create_xml_hash
484 #      RETURNS:  nothing
485 #  DESCRIPTION:  process this incoming message
486 #===============================================================================
487 sub new_key {
488     my ($msg_hash) = @_;
489     my @out_msg_l;
490     
491     my $header = @{$msg_hash->{header}}[0];
492     my $source_name = @{$msg_hash->{source}}[0];
493     my $source_key = @{$msg_hash->{new_key}}[0];
494     my $query_res;
496     # check known_clients_db
497     my $sql_statement = "SELECT * FROM known_clients WHERE hostname='$source_name'";
498     $query_res = $main::known_clients_db->select_dbentry( $sql_statement );
499     if( 1 == keys %{$query_res} ) {
500         my $act_time = &get_time;
501         my $sql_statement= "UPDATE known_clients ".
502             "SET hostkey='$source_key', timestamp='$act_time' ".
503             "WHERE hostname='$source_name'";
504         my $res = $main::known_clients_db->update_dbentry( $sql_statement );
505         my $hash = &create_xml_hash("confirm_new_key", $server_address, $source_name);
506         my $out_msg = &create_xml_string($hash);
507         push(@out_msg_l, $out_msg);
508     }
510     # only do if host still not found
511     if( 0 == @out_msg_l ) {
512         # check known_server_db
513         $sql_statement = "SELECT * FROM known_server WHERE hostname='$source_name'";
514         $query_res = $main::known_server_db->select_dbentry( $sql_statement );
515         if( 1 == keys %{$query_res} ) {
516             my $act_time = &get_time;
517             my $sql_statement= "UPDATE known_server ".
518                 "SET hostkey='$source_key', timestamp='$act_time' ".
519                 "WHERE hostname='$source_name'";
520             my $res = $main::known_server_db->update_dbentry( $sql_statement );
522             my $hash = &create_xml_hash("confirm_new_key", $server_address, $source_name);
523             my $out_msg = &create_xml_string($hash);
524             push(@out_msg_l, $out_msg);
525         }
526     }
528     return @out_msg_l;
532 #===  FUNCTION  ================================================================
533 #         NAME:  here_i_am
534 #   PARAMETERS:  msg_hash - hash - hash from function create_xml_hash
535 #      RETURNS:  nothing
536 #  DESCRIPTION:  process this incoming message
537 #===============================================================================
538 sub here_i_am {
539     my ($msg_hash) = @_;
540     my @out_msg_l;
541     my $out_hash;
543     my $source = @{$msg_hash->{source}}[0];
544     my $mac_address = @{$msg_hash->{mac_address}}[0];
545         my $gotoHardwareChecksum = @{$msg_hash->{gotoHardwareChecksum}}[0];
547     # number of known clients
548     my $nu_clients= $main::known_clients_db->count_dbentries('known_clients');
550     # check wether client address or mac address is already known
551     my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$source'";
552     my $db_res= $main::known_clients_db->select_dbentry( $sql_statement );
553     
554     if ( 1 == keys %{$db_res} ) {
555         &main::daemon_log("WARNING: $source is already known as a client", 1);
556         &main::daemon_log("WARNING: values for $source are being overwritten", 1);   
557         $nu_clients --;
558     }
560     # number of actual activ clients
561     my $act_nu_clients = $nu_clients;
563     &main::daemon_log("number of actual activ clients: $act_nu_clients", 5);
564     &main::daemon_log("number of maximal allowed clients: $max_clients", 5);
566     if($max_clients <= $act_nu_clients) {
567         my $out_hash = &create_xml_hash("denied", $server_address, $source);
568         &add_content2xml_hash($out_hash, "denied", "I_cannot_take_any_more_clients!");
569         my $passwd = @{$msg_hash->{new_passwd}}[0]; 
570         &send_msg_hash2address($out_hash, $source, $passwd);
571         return;
572     }
573     
574     # new client accepted
575     my $new_passwd = @{$msg_hash->{new_passwd}}[0];
577     # create entry in known_clients
578     my $events = @{$msg_hash->{events}}[0];
579     
581     # add entry to known_clients_db
582     my $act_timestamp = &get_time;
583     my $res = $main::known_clients_db->add_dbentry( {table=>'known_clients', 
584                                                 primkey=>'hostname',
585                                                 hostname=>$source,
586                                                 events=>$events,
587                                                 macaddress=>$mac_address,
588                                                 status=>'registered',
589                                                 hostkey=>$new_passwd,
590                                                 timestamp=>$act_timestamp,
591                                                 } );
593     if ($res != 0)  {
594         &main::daemon_log("ERROR: cannot add entry to known_clients: $res");
595         return;
596     }
597     
598     # return acknowledgement to client
599     $out_hash = &create_xml_hash("registered", $server_address, $source);
600     my $register_out = &create_xml_string($out_hash);
601     push(@out_msg_l, $register_out);
603     # notify registered client to bus
604     if( $bus_activ eq "on") {
605         # fetch actual bus key
606         my $sql_statement= "SELECT * FROM known_server WHERE status='bus'";
607         my $query_res = $main::known_server_db->select_dbentry( $sql_statement );
608         my $hostkey = $query_res->{1}->{'hostkey'};
610         # send update msg to bus
611         $out_hash = &create_xml_hash("new_client", $server_address, $bus_address, $source);
612         &add_content2xml_hash($out_hash, "macaddress", $mac_address);
613         &add_content2xml_hash($out_hash, "timestamp", $act_timestamp);
614         my $new_client_out = &create_xml_string($out_hash);
615         push(@out_msg_l, $new_client_out);
616         &main::daemon_log("send bus msg that client '$source' has registerd at server '$server_address'", 3);
617     }
619     # give the new client his ldap config
620     my $new_ldap_config_out = &new_ldap_config($source);
621     if( $new_ldap_config_out ) {
622         push(@out_msg_l, $new_ldap_config_out);
623     }
625         my $hardware_config_out = &hardware_config($source, $gotoHardwareChecksum);
626         if( $hardware_config_out ) {
627                 push(@out_msg_l, $hardware_config_out);
628         }
630     return @out_msg_l;
634 #===  FUNCTION  ================================================================
635 #         NAME:  who_has
636 #   PARAMETERS:  msg_hash - hash - hash from function create_xml_hash
637 #      RETURNS:  nothing 
638 #  DESCRIPTION:  process this incoming message
639 #===============================================================================
640 sub who_has {
641     my ($msg_hash) = @_ ;
642     my @out_msg_l;
643     
644     # what is your search pattern
645     my $search_pattern = @{$msg_hash->{who_has}}[0];
646     my $search_element = @{$msg_hash->{$search_pattern}}[0];
647     &main::daemon_log("who_has-msg looking for $search_pattern $search_element", 7);
649     # scanning known_clients for search_pattern
650     my @host_addresses = keys %$main::known_clients;
651     my $known_clients_entries = length @host_addresses;
652     my $host_address;
653     foreach my $host (@host_addresses) {
654         my $client_element = $main::known_clients->{$host}->{$search_pattern};
655         if ($search_element eq $client_element) {
656             $host_address = $host;
657             last;
658         }
659     }
660         
661     # search was successful
662     if (defined $host_address) {
663         my $source = @{$msg_hash->{source}}[0];
664         my $out_hash = &create_xml_hash("who_has_i_do", $server_address, $source, "mac_address");
665         &add_content2xml_hash($out_hash, "mac_address", $search_element);
666         my $out_msg = &create_xml_string($out_hash);
667         push(@out_msg_l, $out_msg);
668     }
669     return @out_msg_l;
673 sub who_has_i_do {
674     my ($msg_hash) = @_ ;
675     my $header = @{$msg_hash->{header}}[0];
676     my $source = @{$msg_hash->{source}}[0];
677     my $search_param = @{$msg_hash->{$header}}[0];
678     my $search_value = @{$msg_hash->{$search_param}}[0];
679     print "\ngot msg $header:\nserver $source has client with $search_param $search_value\n";
682 #===  FUNCTION  ================================================================
683 #         NAME:  new_ldap_config
684 #   PARAMETERS:  address - string - ip address and port of a host
685 #      RETURNS:  nothing
686 #  DESCRIPTION:  send to address the ldap configuration found for dn gotoLdapServer
687 #===============================================================================
688 sub new_ldap_config {
689         my ($address) = @_ ;
691         my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$address'";
692         my $res = $main::known_clients_db->select_dbentry( $sql_statement );
694         # check hit
695         my $hit_counter = keys %{$res};
696         if( not $hit_counter == 1 ) {
697                 &main::daemon_log("ERROR: more or no hit found in known_clients_db by query by '$address'", 1);
698         }
700         my $macaddress = $res->{1}->{macaddress};
701         my $hostkey = $res->{1}->{hostkey};
703         if (not defined $macaddress) {
704                 &main::daemon_log("ERROR: no mac address found for client $address", 1);
705                 return;
706         }
708         # Build LDAP connection
709         my $ldap = Net::LDAP->new($ldap_uri);
710         if( not defined $ldap ) {
711                 &main::daemon_log("ERROR: cannot connect to ldap: $ldap_uri", 1);
712                 return;
713         } 
716         # Bind to a directory with dn and password
717         my $mesg= $ldap->bind($ldap_admin_dn, password => $ldap_admin_password);
719         # Perform search
720         $mesg = $ldap->search( base   => $ldap_base,
721                 scope  => 'sub',
722                 attrs => ['dn', 'gotoLdapServer', 'gosaUnitTag'],
723                 filter => "(&(objectClass=GOhard)(macaddress=$macaddress))");
724         #$mesg->code && die $mesg->error;
725         if($mesg->code) {
726                 &main::daemon_log($mesg->error, 1);
727                 return;
728         }
730         # Sanity check
731         if ($mesg->count != 1) {
732                 &main::daemon_log("WARNING: client mac address $macaddress not found/not unique in ldap search", 1);
733                 &main::daemon_log("\tbase: $ldap_base", 1);
734                 &main::daemon_log("\tscope: sub", 1);
735                 &main::daemon_log("\tattrs: dn, gotoLdapServer", 1);
736                 &main::daemon_log("\tfilter: (&(objectClass=GOhard)(macaddress=$macaddress))", 1);
737                 return;
738         }
740         my $entry= $mesg->entry(0);
741         my $dn= $entry->dn;
742         my @servers= $entry->get_value("gotoLdapServer");
743         my $unit_tag= $entry->get_value("gosaUnitTag");
744         my @ldap_uris;
745         my $server;
746         my $base;
748         # Do we need to look at an object class?
749         if (length(@servers) < 1){
750                 $mesg = $ldap->search( base   => $ldap_base,
751                         scope  => 'sub',
752                         attrs => ['dn', 'gotoLdapServer'],
753                         filter => "(&(objectClass=gosaGroupOfNames)(member=$dn))");
754                 #$mesg->code && die $mesg->error;
755                 if($mesg->code) {
756                         &main::daemon_log($mesg->error, 1);
757                         return;
758                 }
760                 # Sanity check
761                 if ($mesg->count != 1) {
762                         &main::daemon_log("WARNING: no LDAP information found for client mac $macaddress", 1);
763                         return;
764                 }
766                 $entry= $mesg->entry(0);
767                 $dn= $entry->dn;
768                 @servers= $entry->get_value("gotoLdapServer");
769         }
771         @servers= sort (@servers);
773         foreach $server (@servers){
774                 # Conversation for backward compatibility
775                 if ($server !=~ /^ldap[^:]+:\/\// ) {
776                         if ($server =~ /^([^:]+):(.*)$/ ) {
777                                 $server= "1:dummy:ldap://$1/$2";
778                         }
779                 }
781                 $base= $server;
782                 $server =~ s%^[^:]+:[^:]+:(ldap.*://[^/]+)/.*$%$1%;
783                 $base =~ s%^[^:]+:[^:]+:ldap.*://[^/]+/(.*)$%$1%;
784                 push (@ldap_uris, $server);
785         }
787         # Assemble data package
788         my %data = ( 'ldap_uri'  => \@ldap_uris, 'ldap_base' => $base,
789                 'ldap_cfg' => \@ldap_cfg, 'pam_cfg' => \@pam_cfg,'nss_cfg' => \@nss_cfg );
791         # Need to append GOto settings?
792         if (defined $goto_admin and defined $goto_secret){
793                 $data{'goto_admin'}= $goto_admin;
794                 $data{'goto_secret'}= $goto_secret;
795         }
797         # Append unit tag if needed
798         if (defined $unit_tag){
800                 # Find admin base and department name
801                 $mesg = $ldap->search( base   => $ldap_base,
802                         scope  => 'sub',
803                         attrs => ['dn', 'ou', 'FAIclass'],
804                         filter => "(&(objectClass=gosaAdministrativeUnit)(gosaUnitTag=$unit_tag))");
805                 #$mesg->code && die $mesg->error;
806                 if($mesg->code) {
807                         &main::daemon_log($mesg->error, 1);
808                         return;
809                 }
811                 # Sanity check
812                 if ($mesg->count != 1) {
813                         &main::daemon_log("WARNING: cannot find administrative unit for client with tag $unit_tag", 1);
814                         return;
815                 }
817                 $entry= $mesg->entry(0);
818                 $data{'admin_base'}= $entry->dn;
819                 $data{'department'}= $entry->get_value("ou");
821                 # Append unit Tag
822                 $data{'unit_tag'}= $unit_tag;
823         }
825         # Fill release if available
826         my $FAIclass= $entry->get_value("FAIclass");
827         if (defined $FAIclass && $FAIclass =~ /^.* :([A-Za-z0-9\/.]+).*$/) {
828                 $data{'release'}= $1;
829         }
832         # Unbind
833         $mesg = $ldap->unbind;
835         # Send information
836         return send_msg("new_ldap_config", $server_address, $address, \%data);
839 sub process_detected_hardware {
840         my $msg_hash = shift;
841         my $address = $msg_hash->{source}[0];
842         my $gotoHardwareChecksum= $msg_hash->{detected_hardware}[0]->{gotoHardwareChecksum};
844     my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$address'";
845     my $res = $main::known_clients_db->select_dbentry( $sql_statement );
847     # check hit
848     my $hit_counter = keys %{$res};
849     if( not $hit_counter == 1 ) {
850         &main::daemon_log("ERROR: more or no hit found in known_clients_db by query by '$address'", 1);
851                 return;
852     }
854     my $macaddress = $res->{1}->{macaddress};
855     my $hostkey = $res->{1}->{hostkey};
857     if (not defined $macaddress) {
858         &main::daemon_log("ERROR: no mac address found for client $address", 1);
859         return;
860     }
861     # Build LDAP connection
862     my $ldap = Net::LDAP->new($ldap_uri);
863     if( not defined $ldap ) {
864         &main::daemon_log("ERROR: cannot connect to ldap: $ldap_uri", 1);
865         return;
866     } 
868     # Bind to a directory with dn and password
869     my $mesg= $ldap->bind($ldap_admin_dn, password => $ldap_admin_password);
871     # Perform search
872         $mesg = $ldap->search(
873                 base   => $ldap_base,
874                 scope  => 'sub',
875                 filter => "(&(objectClass=GOhard)(|(macAddress=$macaddress)(dhcpHWaddress=ethernet $macaddress)))"
876         );
878         # We need to create a base entry first (if not done from ArpHandler)
879         if($mesg->count == 0) {
880                 &main::daemon_log("Need to create a new LDAP Entry for client $address", 1);
881                 my $resolver=Net::DNS::Resolver->new;
882                 my $ipaddress= $1 if $address =~ /^([0-9\.]*?):.*$/;
883                 my $dnsresult= $resolver->search($ipaddress);
884                 my $dnsname= (defined($dnsresult))?$dnsresult->{answer}[0]->{ptrdname}:$ipaddress;
885                 my $cn = (($dnsname =~ /^(\d){1,3}\.(\d){1,3}\.(\d){1,3}\.(\d){1,3}/) ? $dnsname : sprintf "%s", $dnsname =~ /([^\.]+)\.?/);
886                 my $dn = "cn=$cn,ou=incoming,$ldap_base";
887                 &main::daemon_log("Creating entry for $dn",6);
888                 my $entry= Net::LDAP::Entry->new( $dn );
889                 $entry->dn($dn);
890                 $entry->add("objectClass" => "goHard");
891                 $entry->add("cn" => $cn);
892                 $entry->add("macAddress" => $macaddress);
893                 $entry->add("gotomode" => "locked");
894                 $entry->add("gotoSysStatus" => "new-system");
895                 $entry->add("ipHostNumber" => $ipaddress);
896                 if(defined($gosa_unit_tag) && length($gosa_unit_tag) > 0) {
897                         $entry->add("objectClass" => "gosaAdministrativeUnit");
898                         $entry->add("gosaUnitTag" => $gosa_unit_tag);
899                 }
900                 if(my $res=$entry->update($ldap)) {
901                         # Fill $mesg again
902                         $mesg = $ldap->search(
903                                 base   => $ldap_base,
904                                 scope  => 'sub',
905                                 filter => "(&(objectClass=GOhard)(|(macAddress=$macaddress)(dhcpHWaddress=ethernet $macaddress)))"
906                         );
907                 } else {
908                         &main::daemon_log("ERROR: There was a problem adding the entry", 1);
909                 }
911         }
912         
913         if($mesg->count == 1) {
914                 my $entry= $mesg->entry(0);
915                 $entry->changetype("modify");
916                 foreach my $attribute (
917                         "gotoSndModule", "ghNetNic", "gotoXResolution", "ghSoundAdapter", "ghCpuType", "gotoXkbModel", 
918                         "ghGfxAdapter", "gotoXMousePort", "ghMemSize", "gotoXMouseType", "ghUsbSupport", "gotoXHsync", 
919                         "gotoXDriver", "gotoXVsync", "gotoXMonitor", "gotoHardwareChecksum") {
920                         if(defined($msg_hash->{detected_hardware}[0]->{$attribute})) {
921                                 if(defined($entry->get_value($attribute))) {
922                                         $entry->delete($attribute);
923                                 }
924                                 &main::daemon_log("Adding attribute $attribute with value ".$msg_hash->{detected_hardware}[0]->{$attribute},1);
925                                 $entry->add($attribute => $msg_hash->{detected_hardware}[0]->{$attribute});     
926                         }
927                 }
928                 foreach my $attribute (
929                         "gotoModules", "ghScsiDev", "ghIdeDev") {
930                         if(defined($msg_hash->{detected_hardware}[0]->{$attribute})) {
931                                 if(defined($entry->get_value($attribute))) {
932                                         $entry->delete($attribute);
933                                 }
934                                 foreach my $array_entry (@{$msg_hash->{detected_hardware}[0]->{$attribute}}) {
935                                         $entry->add($attribute => $array_entry);
936                                 }
937                         }
939                 }
941                 if($entry->update($ldap)) {
942                         &main::daemon_log("Added Hardware configuration to LDAP", 4);
943                 }
945         }
946         return;
948 #===  FUNCTION  ================================================================
949 #         NAME:  hardware_config
950 #   PARAMETERS:  address - string - ip address and port of a host
951 #      RETURNS:  
952 #  DESCRIPTION:  
953 #===============================================================================
954 sub hardware_config {
955         my ($address, $gotoHardwareChecksum) = @_ ;
957         my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$address'";
958         my $res = $main::known_clients_db->select_dbentry( $sql_statement );
960         # check hit
961         my $hit_counter = keys %{$res};
962         if( not $hit_counter == 1 ) {
963                 &main::daemon_log("ERROR: more or no hit found in known_clients_db by query by '$address'", 1);
964         }
966         my $macaddress = $res->{1}->{macaddress};
967         my $hostkey = $res->{1}->{hostkey};
969         if (not defined $macaddress) {
970                 &main::daemon_log("ERROR: no mac address found for client $address", 1);
971                 return;
972         }
974         # Build LDAP connection
975         my $ldap = Net::LDAP->new($ldap_uri);
976         if( not defined $ldap ) {
977                 &main::daemon_log("ERROR: cannot connect to ldap: $ldap_uri", 1);
978                 return;
979         } 
981         # Bind to a directory with dn and password
982         my $mesg= $ldap->bind($ldap_admin_dn, password => $ldap_admin_password);
984         # Perform search
985         $mesg = $ldap->search(
986                 base   => $ldap_base,
987                 scope  => 'sub',
988                 filter => "(&(objectClass=GOhard)(|(macAddress=$macaddress)(dhcpHWaddress=ethernet $macaddress)))"
989         );
991         if($mesg->count() == 0) {
992                 &main::daemon_log("Host was not found in LDAP!", 1);
993         } else {
994                 my $entry= $mesg->entry(0);
995                 my $dn= $entry->dn;
996                 if(defined($entry->get_value("gotoHardwareChecksum"))) {
997                         if(! $entry->get_value("gotoHardwareChecksum") eq $gotoHardwareChecksum) {
998                                 $entry->replace(gotoHardwareChecksum => $gotoHardwareChecksum);
999                                 if($entry->update($ldap)) {
1000                                         &main::daemon_log("Hardware changed! Detection triggered.", 4);
1001                                 }
1002                         } else {
1003                                 # Nothing to do
1004                                 return;
1005                         }
1006                 }
1007         } 
1008         # need to fill it to LDAP
1009         #$entry->add(gotoHardwareChecksum => $gotoHardwareChecksum);
1010         #if($entry->update($ldap)) {
1011         #               &main::daemon_log("gotoHardwareChecksum $gotoHardwareChecksum was added to LDAP", 4);
1012         #}
1014         ## Look if there another host with this checksum to use the hardware config
1015         #$mesg = $ldap->search(
1016         #       base   => $ldap_base,
1017         #       scope  => 'sub',
1018         #       filter => "(&(objectClass=GOhard)(gotoHardwareChecksum=$gotoHardwareChecksum))"
1019         #);
1021         #if($mesg->count>1) {
1022         #       my $clone_entry= $mesg->entry(0);
1023         #       $entry->changetype("modify");
1024         #       foreach my $attribute (
1025         #               "gotoSndModule", "ghNetNic", "gotoXResolution", "ghSoundAdapter", "ghCpuType", "gotoXkbModel", 
1026         #               "ghGfxAdapter", "gotoXMousePort", "ghMemSize", "gotoXMouseType", "ghUsbSupport", "gotoXHsync", 
1027         #               "gotoXDriver", "gotoXVsync", "gotoXMonitor") {
1028         #               my $value= $clone_entry->get_value($attribute);
1029         #               if(defined($value)) {
1030         #                       if(defined($entry->get_value($attribute))) {
1031         #                               $entry->delete($attribute);
1032         #                       }
1033         #                       &main::daemon_log("Adding attribute $attribute with value $value",1);
1034         #                       $entry->add($attribute => $value);
1035         #               }
1036         #       }
1037         #       foreach my $attribute (
1038         #               "gotoModules", "ghScsiDev", "ghIdeDev") {
1039         #               my $array= $clone_entry->get_value($attribute, 'as_ref' => 1);
1040         #               if(defined($array))     {
1041         #                       if(defined($entry->get_value($attribute))) {
1042         #                               $entry->delete($attribute);
1043         #                       }
1044         #                       foreach my $array_entry (@{$array}) {
1045         #                               $entry->add($attribute => $array_entry);
1046         #                       }
1047         #               }
1049         #       }
1050         #       if($entry->update($ldap)) {
1051         #               &main::daemon_log("Added Hardware configuration to LDAP", 4);
1052         #       }
1054         #}
1057         # Assemble data package
1058         my %data = ();
1060         # Need to append GOto settings?
1061         if (defined $goto_admin and defined $goto_secret){
1062                 $data{'goto_admin'}= $goto_admin;
1063                 $data{'goto_secret'}= $goto_secret;
1064         }
1066         # Unbind
1067         $mesg = $ldap->unbind;
1069         &main::daemon_log("Send detect_hardware message to $address", 4);
1071         # Send information
1072         return send_msg("detect_hardware", $server_address, $address, \%data);
1075 sub server_matches {
1076         my $target = shift;
1077         my $target_ip = sprintf("%s", $target =~ /^([0-9\.]*?):.*$/);
1078         my $result = 0;
1080         if($server_ip eq $target_ip) {
1081                 $result= 1;
1082         } elsif ($server_ip eq "0.0.0.0") {     
1083                 if ($target_ip eq "127.0.0.1") {
1084                         $result= 1;
1085                 } else {
1086                         my $PROC_NET_ROUTE= ('/proc/net/route');
1088                         open(PROC_NET_ROUTE, "<$PROC_NET_ROUTE")
1089                                 or die "Could not open $PROC_NET_ROUTE";
1091                         my @ifs = <PROC_NET_ROUTE>;
1093                         close(PROC_NET_ROUTE);
1095                         # Eat header line
1096                         shift @ifs;
1097                         chomp @ifs;
1098                         foreach my $line(@ifs) {
1099                                 my ($Iface,$Destination,$Gateway,$Flags,$RefCnt,$Use,$Metric,$Mask,$MTU,$Window,$IRTT)=split(/\s/, $line);
1100                                 my $destination;
1101                                 my $mask;
1102                                 my ($d,$c,$b,$a)=unpack('a2 a2 a2 a2', $Destination);
1103                                 $destination= sprintf("%d.%d.%d.%d", hex($a), hex($b), hex($c), hex($d));
1104                                 ($d,$c,$b,$a)=unpack('a2 a2 a2 a2', $Mask);
1105                                 $mask= sprintf("%d.%d.%d.%d", hex($a), hex($b), hex($c), hex($d));
1106                                 if(new NetAddr::IP($target_ip)->within(new NetAddr::IP($destination, $mask))) {
1107                                         # destination matches route, save mac and exit
1108                                         $result= 1;
1109                                         last;
1110                                 }
1111                         }
1112                 }
1113         } else {
1114                 &main::daemon_log("Target ip $target_ip does not match Server ip $server_ip",1);
1115         }
1117         return $result;
1121 #===  FUNCTION  ================================================================
1122 #         NAME:  execute_actions
1123 #   PARAMETERS:  msg_hash - hash - hash from function create_xml_hash
1124 #      RETURNS:  nothing
1125 #  DESCRIPTION:  invokes the script specified in msg_hash which is located under
1126 #                /etc/gosad/actions
1127 #===============================================================================
1128 sub execute_actions {
1129     my ($msg_hash) = @_ ;
1130     my $configdir= '/etc/gosad/actions/';
1131     my $result;
1133     my $header = @{$msg_hash->{header}}[0];
1134     my $source = @{$msg_hash->{source}}[0];
1135     my $target = @{$msg_hash->{target}}[0];
1136  
1137     if((not defined $source)
1138             && (not defined $target)
1139             && (not defined $header)) {
1140         &main::daemon_log("ERROR: Entries missing in XML msg for gosad actions under /etc/gosad/actions");
1141     } else {
1142         my $parameters="";
1143         my @params = @{$msg_hash->{$header}};
1144         my $params = join(", ", @params);
1145         &main::daemon_log("execute_actions: got parameters: $params", 5);
1147         if (@params) {
1148             foreach my $param (@params) {
1149                 my $param_value = (&get_content_from_xml_hash($msg_hash, $param))[0];
1150                 &main::daemon_log("execute_actions: parameter -> value: $param -> $param_value", 7);
1151                 $parameters.= " ".$param_value;
1152             }
1153         }
1155         my $cmd= $configdir.$header."$parameters";
1156         &main::daemon_log("execute_actions: executing cmd: $cmd", 7);
1157         $result= "";
1158         open(PIPE, "$cmd 2>&1 |");
1159         while(<PIPE>) {
1160             $result.=$_;
1161         }
1162         close(PIPE);
1163     }
1165     # process the event result
1168     return;
1172 1;