80b34bb165178420f6cee4cbbf40c8c4b94b0573
1 package ServerPackages;
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 Net::LDAP;
16 use Socket qw/PF_INET SOCK_DGRAM inet_ntoa sockaddr_in/;
18 BEGIN{}
19 END {}
21 my ($known_clients_file_name);
22 my ($server_activ, $server_ip, $server_mac_address, $server_port, $server_passwd, $max_clients, $ldap_uri, $ldap_base, $ldap_admin_dn, $ldap_admin_password);
23 my ($bus_activ, $bus_passwd, $bus_ip, $bus_port);
24 my $server;
25 my $network_interface;
26 my $no_bus;
27 my (@ldap_cfg, @pam_cfg, @nss_cfg, $goto_admin, $goto_secret);
30 my %cfg_defaults =
31 (
32 "server" =>
33 {"server_activ" => [\$server_activ, "on"],
34 "server_ip" => [\$server_ip, "0.0.0.0"],
35 "server_mac_address" => [\$server_mac_address, ""],
36 "server_port" => [\$server_port, "20081"],
37 "server_passwd" => [\$server_passwd, ""],
38 "max_clients" => [\$max_clients, 100],
39 "ldap_uri" => [\$ldap_uri, ""],
40 "ldap_base" => [\$ldap_base, ""],
41 "ldap_admin_dn" => [\$ldap_admin_dn, ""],
42 "ldap_admin_password" => [\$ldap_admin_password, ""],
43 },
44 "bus" =>
45 {"bus_activ" => [\$bus_activ, "on"],
46 "bus_passwd" => [\$bus_passwd, ""],
47 "bus_ip" => [\$bus_ip, ""],
48 "bus_port" => [\$bus_port, "20080"],
49 },
50 );
52 ### START #####################################################################
54 # read configfile and import variables
55 &read_configfile();
57 # detect interfaces and mac address
58 $network_interface= &get_interface_for_ip($server_ip);
59 $server_mac_address= &get_mac($network_interface);
61 &main::daemon_log("server ip address detected: $server_ip", 1);
62 &main::daemon_log("server mac address detected: $server_mac_address", 1);
64 # complete addresses
65 my $server_address = "$server_ip:$server_port";
66 my $bus_address = "$bus_ip:$bus_port";
68 # create general settings for this module
69 my $xml = new XML::Simple();
71 # open server socket
72 if($server_activ eq "on"){
73 &main::daemon_log(" ", 1);
74 $server = IO::Socket::INET->new(LocalPort => $server_port,
75 Type => SOCK_STREAM,
76 Reuse => 1,
77 Listen => 20,
78 );
79 if(not defined $server){
80 &main::daemon_log("cannot be a tcp server at $server_port : $@");
81 die;
82 } else {
83 &main::daemon_log("start server: $server_address", 1);
84 }
85 }
88 # register at bus
89 if ($main::no_bus > 0) {
90 $bus_activ = "off"
91 }
92 if($bus_activ eq "on") {
93 &main::daemon_log(" ", 1);
94 ®ister_at_bus();
95 }
97 ### functions #################################################################
100 sub get_module_info {
101 my @info = ($server_address,
102 $server_passwd,
103 $server,
104 $server_activ,
105 "socket",
106 );
107 return \@info;
108 }
111 #=== FUNCTION ================================================================
112 # NAME: read_configfile
113 # PARAMETERS: cfg_file - string -
114 # RETURNS: nothing
115 # DESCRIPTION: read cfg_file and set variables
116 #===============================================================================
117 sub read_configfile {
118 my $cfg;
119 if( defined( $main::cfg_file) && ( length($main::cfg_file) > 0 )) {
120 if( -r $main::cfg_file ) {
121 $cfg = Config::IniFiles->new( -file => $main::cfg_file );
122 } else {
123 print STDERR "Couldn't read config file!";
124 }
125 } else {
126 $cfg = Config::IniFiles->new() ;
127 }
128 foreach my $section (keys %cfg_defaults) {
129 foreach my $param (keys %{$cfg_defaults{ $section }}) {
130 my $pinfo = $cfg_defaults{ $section }{ $param };
131 ${@$pinfo[0]} = $cfg->val( $section, $param, @$pinfo[1] );
132 }
133 }
135 # Read non predefined sections
136 my $param;
137 if ($cfg->SectionExists('ldap')){
138 foreach $param ($cfg->Parameters('ldap')){
139 push (@ldap_cfg, "$param ".$cfg->val('ldap', $param));
140 }
141 }
142 if ($cfg->SectionExists('pam_ldap')){
143 foreach $param ($cfg->Parameters('pam_ldap')){
144 push (@pam_cfg, "$param ".$cfg->val('pam_ldap', $param));
145 }
146 }
147 if ($cfg->SectionExists('nss_ldap')){
148 foreach $param ($cfg->Parameters('nss_ldap')){
149 push (@nss_cfg, "$param ".$cfg->val('nss_ldap', $param));
150 }
151 }
152 if ($cfg->SectionExists('goto')){
153 $goto_admin= $cfg->val('goto', 'terminal_admin');
154 $goto_secret= $cfg->val('goto', 'terminal_secret');
155 } else {
156 $goto_admin= undef;
157 $goto_secret= undef;
158 }
160 }
162 #=== FUNCTION ================================================================
163 # NAME: get_interface_for_ip
164 # PARAMETERS: ip address (i.e. 192.168.0.1)
165 # RETURNS: array: list of interfaces if ip=0.0.0.0, matching interface if found, undef else
166 # DESCRIPTION: Uses proc fs (/proc/net/dev) to get list of interfaces.
167 #===============================================================================
168 sub get_interface_for_ip {
169 my $result;
170 my $ip= shift;
171 if ($ip && length($ip) > 0) {
172 my @ifs= &get_interfaces();
173 if($ip eq "0.0.0.0") {
174 $result = "all";
175 } else {
176 foreach (@ifs) {
177 my $if=$_;
178 if(get_ip($if) eq $ip) {
179 $result = $if;
180 }
181 }
182 }
183 }
184 return $result;
185 }
187 #=== FUNCTION ================================================================
188 # NAME: get_interfaces
189 # PARAMETERS: none
190 # RETURNS: (list of interfaces)
191 # DESCRIPTION: Uses proc fs (/proc/net/dev) to get list of interfaces.
192 #===============================================================================
193 sub get_interfaces {
194 my @result;
195 my $PROC_NET_DEV= ('/proc/net/dev');
197 open(PROC_NET_DEV, "<$PROC_NET_DEV")
198 or die "Could not open $PROC_NET_DEV";
200 my @ifs = <PROC_NET_DEV>;
202 close(PROC_NET_DEV);
204 # Eat first two line
205 shift @ifs;
206 shift @ifs;
208 chomp @ifs;
209 foreach my $line(@ifs) {
210 my $if= (split /:/, $line)[0];
211 $if =~ s/^\s+//;
212 push @result, $if;
213 }
215 return @result;
216 }
218 #=== FUNCTION ================================================================
219 # NAME: get_mac
220 # PARAMETERS: interface name (i.e. eth0)
221 # RETURNS: (mac address)
222 # DESCRIPTION: Uses ioctl to get mac address directly from system.
223 #===============================================================================
224 sub get_mac {
225 my $ifreq= shift;
226 my $result;
227 if ($ifreq && length($ifreq) > 0) {
228 if($ifreq eq "all") {
229 $result = "00:00:00:00:00:00";
230 } else {
231 my $SIOCGIFHWADDR= 0x8927; # man 2 ioctl_list
233 # A configured MAC Address should always override a guessed value
234 if ($server_mac_address and length($server_mac_address) > 0) {
235 $result= $server_mac_address;
236 }
238 socket SOCKET, PF_INET, SOCK_DGRAM, getprotobyname('ip')
239 or die "socket: $!";
241 if(ioctl SOCKET, $SIOCGIFHWADDR, $ifreq) {
242 my ($if, $mac)= unpack 'h36 H12', $ifreq;
244 if (length($mac) > 0) {
245 $mac=~ m/^([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])$/;
246 $mac= sprintf("%s:%s:%s:%s:%s:%s", $1, $2, $3, $4, $5, $6);
247 $result = $mac;
248 }
249 }
250 }
251 }
252 return $result;
253 }
255 #=== FUNCTION ================================================================
256 # NAME: get_ip
257 # PARAMETERS: interface name (i.e. eth0)
258 # RETURNS: (ip address)
259 # DESCRIPTION: Uses ioctl to get ip address directly from system.
260 #===============================================================================
261 sub get_ip {
262 my $ifreq= shift;
263 my $result= "";
264 my $SIOCGIFADDR= 0x8915; # man 2 ioctl_list
265 my $proto= getprotobyname('ip');
267 socket SOCKET, PF_INET, SOCK_DGRAM, $proto
268 or die "socket: $!";
270 if(ioctl SOCKET, $SIOCGIFADDR, $ifreq) {
271 my ($if, $sin) = unpack 'a16 a16', $ifreq;
272 my ($port, $addr) = sockaddr_in $sin;
273 my $ip = inet_ntoa $addr;
275 if ($ip && length($ip) > 0) {
276 $result = $ip;
277 }
278 }
280 return $result;
281 }
283 #=== FUNCTION ================================================================
284 # NAME: open_socket
285 # PARAMETERS: PeerAddr string something like 192.168.1.1 or 192.168.1.1:10000
286 # [PeerPort] string necessary if port not appended by PeerAddr
287 # RETURNS: socket IO::Socket::INET
288 # DESCRIPTION: open a socket to PeerAddr
289 #===============================================================================
290 #sub open_socket {
291 # my ($PeerAddr, $PeerPort) = @_ ;
292 # if(defined($PeerPort)){
293 # $PeerAddr = $PeerAddr.":".$PeerPort;
294 # }
295 # my $socket;
296 # $socket = new IO::Socket::INET(PeerAddr => $PeerAddr ,
297 # Porto => "tcp" ,
298 # Type => SOCK_STREAM,
299 # Timeout => 5,
300 # );
301 # if(not defined $socket) {
302 # return;
303 # }
304 # &main::daemon_log("open_socket to: $PeerAddr", 7);
305 # return $socket;
306 #}
308 #=== FUNCTION ================================================================
309 # NAME: register_at_bus
310 # PARAMETERS: nothing
311 # RETURNS: nothing
312 # DESCRIPTION: creates an entry in known_daemons and send a 'here_i_am' msg to bus
313 #===============================================================================
314 sub register_at_bus {
316 # add bus to known_server_db
317 my $res = $main::known_server_db->add_dbentry( {table=>'known_server',
318 primkey=>'hostname',
319 hostname=>$bus_address,
320 status=>'bus',
321 hostkey=>$bus_passwd,
322 timestamp=>&get_time,
323 } );
324 my $msg_hash = &create_xml_hash("here_i_am", $server_address, $bus_address);
325 my $answer = "";
326 $answer = &send_msg_hash2address($msg_hash, $bus_address, $bus_passwd);
327 if ($answer == 0) {
328 &main::daemon_log("register at bus: $bus_address", 1);
329 } else {
330 &main::daemon_log("unable to send 'register'-msg to bus '$bus_address': $answer", 1);
331 }
332 return;
333 }
335 #=== FUNCTION ================================================================
336 # NAME: process_incoming_msg
337 # PARAMETERS: crypted_msg - string - incoming crypted message
338 # RETURNS: nothing
339 # DESCRIPTION: handels the proceeded distribution to the appropriated functions
340 #===============================================================================
341 sub process_incoming_msg {
342 my ($crypted_msg) = @_ ;
343 if(not defined $crypted_msg) {
344 &main::daemon_log("function 'process_incoming_msg': got no msg", 7);
345 }
347 &main::daemon_log("ServerPackages: incoming msg: \n$crypted_msg", 8);
349 $crypted_msg =~ /^([\s\S]*?)\.(\d{1,3}?)\.(\d{1,3}?)\.(\d{1,3}?)\.(\d{1,3}?)$/;
350 $crypted_msg = $1;
351 my $host = sprintf("%s.%s.%s.%s", $2, $3, $4, $5);
353 my $msg;
354 my $msg_hash;
355 my $host_name;
356 my $host_key;
358 # check wether incoming msg is a new msg
359 $host_name = $server_address;
360 $host_key = $server_passwd;
361 &main::daemon_log("ServerPackage: host_name: $host_name", 7);
362 &main::daemon_log("ServerPackage: host_key: $host_key", 7);
363 eval{
364 my $key_cipher = &create_ciphering($host_key);
365 $msg = &decrypt_msg($crypted_msg, $key_cipher);
366 $msg_hash = &transform_msg2hash($msg);
367 };
368 if($@) {
369 &main::daemon_log("ServerPackage: deciphering raise error", 7);
370 &main::daemon_log("$@", 8);
371 $msg = undef;
372 $msg_hash = undef;
373 $host_name = undef;
374 $host_key = undef;
375 }
377 # check wether incoming msg is from a known_server
378 if( not defined $msg ) {
379 my $query_res = $main::known_server_db->select_dbentry( {table=>'known_server'} );
380 while( my ($hit_num, $hit) = each %{ $query_res } ) {
381 $host_name = $hit->{hostname};
382 if( not $host_name =~ "^$host") {
383 next;
384 }
385 $host_key = $hit->{hostkey};
386 &main::daemon_log("ServerPackage: host_name: $host_name", 7);
387 &main::daemon_log("ServerPackage: host_key: $host_key", 7);
388 eval{
389 my $key_cipher = &create_ciphering($host_key);
390 $msg = &decrypt_msg($crypted_msg, $key_cipher);
391 $msg_hash = &transform_msg2hash($msg);
392 };
393 if($@) {
394 &main::daemon_log("ServerPackage: deciphering raise error", 7);
395 &main::daemon_log("$@", 8);
396 $msg = undef;
397 $msg_hash = undef;
398 $host_name = undef;
399 $host_key = undef;
400 } else {
401 last;
402 }
403 }
404 }
406 # check wether incoming msg is from a known_client
407 if( not defined $msg ) {
408 my $query_res = $main::known_clients_db->select_dbentry( {table=>'known_clients'} );
409 while( my ($hit_num, $hit) = each %{ $query_res } ) {
410 $host_name = $hit->{hostname};
411 if( not $host_name =~ "^$host") {
412 next;
413 }
414 $host_key = $hit->{hostkey};
415 &main::daemon_log("ServerPackage: host_name: $host_name", 7);
416 &main::daemon_log("ServerPackage: host_key: $host_key", 7);
417 eval{
418 my $key_cipher = &create_ciphering($host_key);
419 $msg = &decrypt_msg($crypted_msg, $key_cipher);
420 $msg_hash = &transform_msg2hash($msg);
421 };
422 if($@) {
423 &main::daemon_log("ServerPackage: deciphering raise error", 7);
424 &main::daemon_log("$@", 8);
425 $msg = undef;
426 $msg_hash = undef;
427 $host_name = undef;
428 $host_key = undef;
429 } else {
430 last;
431 }
432 }
433 }
435 if( not defined $msg ) {
436 &main::daemon_log("WARNING: ServerPackage do not understand the message:", 5);
437 &main::daemon_log("$@", 7);
438 return;
439 }
441 # process incoming msg
442 my $header = @{$msg_hash->{header}}[0];
443 my $source = @{$msg_hash->{source}}[0];
445 &main::daemon_log("receive '$header' at ServerPackages from $host", 1);
446 &main::daemon_log("ServerPackages: msg to process: \n$msg", 7);
448 my @targets = @{$msg_hash->{target}};
449 my $len_targets = @targets;
450 if ($len_targets == 0){
451 &main::daemon_log("ERROR: ServerPackages: no target specified for msg $header", 1);
453 } elsif ($len_targets == 1){
454 # we have only one target symbol
455 my $target = $targets[0];
456 &main::daemon_log("SeverPackages: msg is for: $target", 7);
458 # msg is for server
459 if ($header eq 'new_passwd'){ &new_passwd($msg_hash)}
460 elsif ($header eq 'here_i_am') { &here_i_am($msg_hash)}
461 elsif ($header eq 'who_has') { &who_has($msg_hash) }
462 elsif ($header eq 'who_has_i_do') { &who_has_i_do($msg_hash)}
463 elsif ($header eq 'update_status') { &update_status($msg_hash) }
464 elsif ($header eq 'got_ping') { &got_ping($msg_hash)}
465 elsif ($header eq 'get_load') { &execute_actions($msg_hash)}
466 else {
467 if ($target eq "*") {
468 # msg is for all clients
469 my $query_res = $main::known_clients_db->select_dbentry( {table=>'known_clients'} );
470 while( my ($hit_num, $hit) = each %{ $query_res } ) {
471 $host_name = $hit->{hostname};
472 $host_key = $hit->{hostkey};
473 $msg_hash->{target} = [$host_name];
474 &send_msg_hash2address($msg_hash, $host_name, $host_key);
475 }
477 } else {
478 # msg is for one host
479 my $host_key;
482 if( not defined $host_key ) {
483 my $query_res = $main::known_clients_db->select_dbentry( {table=>'known_clients', hostname=>$target} );
484 if( 1 == keys %{$query_res} ) {
485 $host_key = $query_res->{1}->{host_key};
486 }
487 }
489 if( not defined $host_key ) {
490 my $query_res = $main::known_server_db->select_dbentry( {table=>'known_server', hostname=>$target} );
491 if( 1 == keys %{$query_res} ) {
492 $host_key = $query_res->{1}->{host_key};
493 }
494 }
496 if( not defined $host_key ) {
497 &main::daemon_log("ERROR: ServerPackages: target '".$target.
498 "' is not known neither in known_clients nor in known_server",1);
499 } else {
500 &send_msg_hash2address($msg_hash, $target, $host_key);
501 }
502 }
503 }
505 } elsif ($len_targets > 1 ) {
506 # we have more than one target
507 # TODO to be implemented
508 }
510 return ;
511 }
514 #=== FUNCTION ================================================================
515 # NAME: got_ping
516 # PARAMETERS: msg_hash - hash - hash from function create_xml_hash
517 # RETURNS: nothing
518 # DESCRIPTION: process this incoming message
519 #===============================================================================
520 sub got_ping {
521 my ($msg_hash) = @_;
523 my $source = @{$msg_hash->{source}}[0];
524 my $target = @{$msg_hash->{target}}[0];
525 my $header = @{$msg_hash->{header}}[0];
527 if(exists $main::known_daemons->{$source}) {
528 &main::add_content2known_daemons(hostname=>$source, status=>$header);
529 } else {
530 &main::add_content2known_clients(hostname=>$source, status=>$header);
531 }
533 return;
534 }
537 #=== FUNCTION ================================================================
538 # NAME: new_passwd
539 # PARAMETERS: msg_hash - ref - hash from function create_xml_hash
540 # RETURNS: nothing
541 # DESCRIPTION: process this incoming message
542 #===============================================================================
543 sub new_passwd {
544 my ($msg_hash) = @_;
546 my $header = @{$msg_hash->{header}}[0];
547 my $source_name = @{$msg_hash->{source}}[0];
548 my $source_key = @{$msg_hash->{new_passwd}}[0];
549 my $query_res;
551 # check known_clients_db
552 $query_res = $main::known_clients_db->select_dbentry( {table=>'known_clients', hostname=>$source_name} );
553 if( 1 == keys %{$query_res} ) {
554 my $update_hash = { table=>'known_clients' };
555 $update_hash->{where} = [ { hostname=>[$source_name] } ];
556 $update_hash->{update} = [ {
557 hostkey=>[$source_key],
558 timestamp=>[&get_time],
559 } ];
560 my $res = $main::known_clients_db->update_dbentry( $update_hash );
562 my $hash = &create_xml_hash("confirm_new_passwd", $server_address, $source_name);
563 &send_msg_hash2address($hash, $source_name, $source_key);
564 return;
565 }
567 # check known_server_db
568 $query_res = $main::known_server_db->select_dbentry( {table=>'known_server', hostname=>$source_name } );
569 if( 1 == keys %{$query_res} ) {
570 my $update_hash = { table=>'known_server' };
571 $update_hash->{where} = [ { hostname=>[$source_name] } ];
572 $update_hash->{update} = [ {
573 hostkey=>[$source_key],
574 timestamp=>[&get_time],
575 } ];
576 my $res = $main::known_server_db->update_dbentry( $update_hash );
578 my $hash = &create_xml_hash("confirm_new_passwd", $server_address, $source_name);
579 &send_msg_hash2address($hash, $source_name, $source_key);
580 return;
581 }
583 &main::daemon_log("ERROR: $source_name not known for '$header'-msg", 1);
584 return;
585 }
588 sub send_msg_hash {
589 my ($hash, $host_name, $host_key);
592 my $answer = &send_msg_hash2address($hash, $host_name, $host_key);
594 return;
595 }
598 #=== FUNCTION ================================================================
599 # NAME: here_i_am
600 # PARAMETERS: msg_hash - hash - hash from function create_xml_hash
601 # RETURNS: nothing
602 # DESCRIPTION: process this incoming message
603 #===============================================================================
604 sub here_i_am {
605 my ($msg_hash) = @_;
607 my $source = @{$msg_hash->{source}}[0];
608 my $mac_address = @{$msg_hash->{mac_address}}[0];
609 my $out_hash;
611 # number of known clients
612 my $nu_clients = keys %{ $main::known_clients_db->select_dbentry( {table=>'known_clients'} ) };
614 # check wether client address or mac address is already known
615 if (exists $main::known_clients->{$source}) {
616 &main::daemon_log("WARNING: $source is already known as a client", 1);
617 &main::daemon_log("WARNING: values for $source are being overwritten", 1);
618 $nu_clients --;
619 }
621 # number of actual activ clients
622 my $act_nu_clients = $nu_clients;
624 &main::daemon_log("number of actual activ clients: $act_nu_clients", 5);
625 &main::daemon_log("number of maximal allowed clients: $max_clients", 5);
627 if($max_clients <= $act_nu_clients) {
628 my $out_hash = &create_xml_hash("denied", $server_address, $source);
629 &add_content2xml_hash($out_hash, "denied", "I_cannot_take_any_more_clients!");
630 my $passwd = @{$msg_hash->{new_passwd}}[0];
631 &send_msg_hash2address($out_hash, $source, $passwd);
632 return;
633 }
635 # new client accepted
636 my $new_passwd = @{$msg_hash->{new_passwd}}[0];
638 # create entry in known_clients
639 my $events = @{$msg_hash->{events}}[0];
641 # add entry to known_clients_db
642 my $res = $main::known_clients_db->add_dbentry( {table=>'known_clients',
643 primkey=>'hostname',
644 hostname=>$source,
645 events=>$events,
646 macaddress=>$mac_address,
647 status=>'registered',
648 hostkey=>$new_passwd,
649 timestamp=>&get_time,
650 } );
652 if ($res != 0) {
653 &main::daemon_log("ERROR: cannot add entry to known_clients: $res");
654 return;
655 }
657 # return acknowledgement to client
658 $out_hash = &create_xml_hash("registered", $server_address, $source);
659 &send_msg_hash2address($out_hash, $source, $new_passwd);
661 # notify registered client to bus
662 if( $bus_activ eq "on") {
663 # fetch actual bus key
664 my $query_res = $main::known_server_db->select_dbentry( {table=>'known_server'} );
665 my $hostkey = $query_res->{1}->{hostkey};
667 # send update msg to bus
668 $out_hash = &create_xml_hash("new_client", $server_address, $bus_address, $source);
669 &send_msg_hash2address($out_hash, $bus_address, $hostkey);
671 &main::daemon_log("send bus msg that client '$source' has registerd at server '$server_address'", 3);
672 }
674 # give the new client his ldap config
675 &new_ldap_config($source);
677 return;
678 }
681 #=== FUNCTION ================================================================
682 # NAME: who_has
683 # PARAMETERS: msg_hash - hash - hash from function create_xml_hash
684 # RETURNS: nothing
685 # DESCRIPTION: process this incoming message
686 #===============================================================================
687 sub who_has {
688 my ($msg_hash) = @_ ;
690 # what is your search pattern
691 my $search_pattern = @{$msg_hash->{who_has}}[0];
692 my $search_element = @{$msg_hash->{$search_pattern}}[0];
693 &main::daemon_log("who_has-msg looking for $search_pattern $search_element", 7);
695 # scanning known_clients for search_pattern
696 my @host_addresses = keys %$main::known_clients;
697 my $known_clients_entries = length @host_addresses;
698 my $host_address;
699 foreach my $host (@host_addresses) {
700 my $client_element = $main::known_clients->{$host}->{$search_pattern};
701 if ($search_element eq $client_element) {
702 $host_address = $host;
703 last;
704 }
705 }
707 # search was successful
708 if (defined $host_address) {
709 my $source = @{$msg_hash->{source}}[0];
710 my $out_msg = &create_xml_hash("who_has_i_do", $server_address, $source, "mac_address");
711 &add_content2xml_hash($out_msg, "mac_address", $search_element);
712 &send_msg_hash2address($out_msg, $bus_address);
713 }
714 return;
715 }
718 sub who_has_i_do {
719 my ($msg_hash) = @_ ;
720 my $header = @{$msg_hash->{header}}[0];
721 my $source = @{$msg_hash->{source}}[0];
722 my $search_param = @{$msg_hash->{$header}}[0];
723 my $search_value = @{$msg_hash->{$search_param}}[0];
724 print "\ngot msg $header:\nserver $source has client with $search_param $search_value\n";
725 }
728 #=== FUNCTION ================================================================
729 # NAME: new_ldap_config
730 # PARAMETERS: address - string - ip address and port of a host
731 # RETURNS: nothing
732 # DESCRIPTION: send to address the ldap configuration found for dn gotoLdapServer
733 #===============================================================================
734 sub new_ldap_config {
735 my ($address) = @_ ;
737 my $res = $main::known_clients_db->select_dbentry( { table=>'known_clients', hostname=>$address } );
739 # check hit
740 my $hit_counter = keys %{$res};
741 if( not $hit_counter == 1 ) {
742 &main::daemon_log("ERROR: more or no hit found in known_clients_db by query by '$address'", 1);
743 }
745 my $macaddress = $res->{1}->{macaddress};
746 my $hostkey = $res->{1}->{hostkey};
748 if (not defined $macaddress) {
749 &main::daemon_log("ERROR: no mac address found for client $address", 1);
750 return;
751 }
753 # Build LDAP connection
754 my $ldap = Net::LDAP->new($ldap_uri);
755 if( not defined $ldap ) {
756 &main::daemon_log("ERROR: cannot connect to ldap: $ldap_uri", 1);
757 return;
758 }
761 # Bind to a directory with dn and password
762 my $mesg= $ldap->bind($ldap_admin_dn, $ldap_admin_password);
764 # Perform search
765 $mesg = $ldap->search( base => $ldap_base,
766 scope => 'sub',
767 attrs => ['dn', 'gotoLdapServer'],
768 filter => "(&(objectClass=GOhard)(macaddress=$macaddress))");
769 $mesg->code && die $mesg->error;
771 # Sanity check
772 if ($mesg->count != 1) {
773 &main::daemon_log("WARNING: client mac address $macaddress not found/not unique in ldap search", 1);
774 &main::daemon_log("\tbase: $ldap_base", 1);
775 &main::daemon_log("\tscope: sub", 1);
776 &main::daemon_log("\tattrs: dn, gotoLdapServer", 1);
777 &main::daemon_log("\tfilter: (&(objectClass=GOhard)(macaddress=$macaddress))", 1);
778 return;
779 }
781 my $entry= $mesg->entry(0);
782 my $dn= $entry->dn;
783 my @servers= $entry->get_value("gotoLdapServer");
784 my @ldap_uris;
785 my $server;
786 my $base;
788 # Do we need to look at an object class?
789 if ($#servers < 1){
790 $mesg = $ldap->search( base => $ldap_base,
791 scope => 'sub',
792 attrs => ['dn', 'gotoLdapServer'],
793 filter => "(&(objectClass=gosaGroupOfNames)(member=$dn))");
794 $mesg->code && die $mesg->error;
796 # Sanity check
797 if ($mesg->count != 1) {
798 &main::daemon_log("WARNING: no LDAP information found for client mac $macaddress", 1);
799 return;
800 }
802 $entry= $mesg->entry(0);
803 $dn= $entry->dn;
804 @servers= $entry->get_value("gotoLdapServer");
805 }
807 @servers= sort (@servers);
809 foreach $server (@servers){
810 $base= $server;
811 $server =~ s%^[^:]+:[^:]+:(ldap.*://[^/]+)/.*$%$1%;
812 $base =~ s%^[^:]+:[^:]+:ldap.*://[^/]+/(.*)$%$1%;
813 push (@ldap_uris, $server);
814 }
816 # Unbind
817 $mesg = $ldap->unbind;
819 # Assemble data package
820 my %data = ( 'ldap_uri' => \@ldap_uris, 'ldap_base' => $base,
821 'ldap_cfg' => \@ldap_cfg, 'pam_cfg' => \@pam_cfg,'nss_cfg' => \@nss_cfg );
823 # Need to append GOto settings?
824 if (defined $goto_admin and defined $goto_secret){
825 $data{'goto_admin'}= $goto_admin;
826 $data{'goto_secret'}= $goto_secret;
827 }
829 # Send information
830 send_msg("new_ldap_config", $server_address, $address, \%data, $hostkey);
832 return;
833 }
836 #=== FUNCTION ================================================================
837 # NAME: execute_actions
838 # PARAMETERS: msg_hash - hash - hash from function create_xml_hash
839 # RETURNS: nothing
840 # DESCRIPTION: invokes the script specified in msg_hash which is located under
841 # /etc/gosad/actions
842 #===============================================================================
843 sub execute_actions {
844 my ($msg_hash) = @_ ;
845 my $configdir= '/etc/gosad/actions/';
846 my $result;
848 my $header = @{$msg_hash->{header}}[0];
849 my $source = @{$msg_hash->{source}}[0];
850 my $target = @{$msg_hash->{target}}[0];
852 if((not defined $source)
853 && (not defined $target)
854 && (not defined $header)) {
855 &main::daemon_log("ERROR: Entries missing in XML msg for gosad actions under /etc/gosad/actions");
856 } else {
857 my $parameters="";
858 my @params = @{$msg_hash->{$header}};
859 my $params = join(", ", @params);
860 &main::daemon_log("execute_actions: got parameters: $params", 5);
862 if (@params) {
863 foreach my $param (@params) {
864 my $param_value = (&get_content_from_xml_hash($msg_hash, $param))[0];
865 &main::daemon_log("execute_actions: parameter -> value: $param -> $param_value", 7);
866 $parameters.= " ".$param_value;
867 }
868 }
870 my $cmd= $configdir.$header."$parameters";
871 &main::daemon_log("execute_actions: executing cmd: $cmd", 7);
872 $result= "";
873 open(PIPE, "$cmd 2>&1 |");
874 while(<PIPE>) {
875 $result.=$_;
876 }
877 close(PIPE);
878 }
880 # process the event result
883 return;
884 }
887 1;