1 #!/usr/bin/perl
2 #===============================================================================
3 #
4 # FILE: gosa-sd
5 #
6 # USAGE: ./gosa-sd
7 #
8 # DESCRIPTION:
9 #
10 # OPTIONS: ---
11 # REQUIREMENTS: libconfig-inifiles-perl libcrypt-rijndael-perl libxml-simple-perl
12 # libdata-dumper-simple-perl libdbd-sqlite3-perl libnet-ldap-perl
13 # libpoe-perl
14 # BUGS: ---
15 # NOTES:
16 # AUTHOR: (Andreas Rettenberger), <rettenberger@gonicus.de>
17 # COMPANY:
18 # VERSION: 1.0
19 # CREATED: 12.09.2007 08:54:41 CEST
20 # REVISION: ---
21 #===============================================================================
23 use strict;
24 use warnings;
25 use Getopt::Long;
26 use Config::IniFiles;
27 use POSIX;
29 use Fcntl;
30 use IO::Socket::INET;
31 use IO::Handle;
32 use IO::Select;
33 use Symbol qw(qualify_to_ref);
34 use Crypt::Rijndael;
35 use MIME::Base64;
36 use Digest::MD5 qw(md5 md5_hex md5_base64);
37 use XML::Simple;
38 use Data::Dumper;
39 use Sys::Syslog qw( :DEFAULT setlogsock);
40 use Cwd;
41 use File::Spec;
42 use File::Basename;
43 use GOSA::DBsqlite;
44 use GOSA::GosaSupportDaemon;
45 use POE qw(Component::Server::TCP);
47 my $modules_path = "/usr/lib/gosa-si/modules";
48 use lib "/usr/lib/gosa-si/modules";
50 my (%cfg_defaults, $foreground, $verbose, $ping_timeout);
51 my ($bus_activ, $bus, $msg_to_bus, $bus_cipher);
52 my ($server, $server_mac_address);
53 my ($gosa_server, $job_queue_timeout, $job_queue_table_name, $job_queue_file_name,$job_queue_loop_delay);
54 my ($known_modules, $known_clients_file_name, $known_server_file_name);
55 my ($pid_file, $procid, $pid, $log_file);
56 my ($arp_activ, $arp_fifo);
57 my ($xml);
59 # variables declared in config file are always set to 'our'
60 our (%cfg_defaults, $log_file, $pid_file,
61 $server_ip, $server_port, $SIPackages_key,
62 $arp_activ, $gosa_unit_tag,
63 $GosaPackages_key, $gosa_ip, $gosa_port, $gosa_timeout,
64 );
66 # additional variable which should be globaly accessable
67 our $server_address;
68 our $bus_address;
69 our $gosa_address;
70 our $no_bus;
71 our $no_arp;
72 our $verbose;
73 our $forground;
74 our $cfg_file;
76 # specifies the verbosity of the daemon_log
77 $verbose = 0 ;
79 # if foreground is not null, script will be not forked to background
80 $foreground = 0 ;
82 # specifies the timeout seconds while checking the online status of a registrating client
83 $ping_timeout = 5;
85 $no_bus = 0;
86 $bus_activ = "true";
88 $no_arp = 0;
90 # name of table for storing gosa jobs
91 our $job_queue_table_name = 'jobs';
92 our $job_db;
94 # holds all other gosa-sd as well as the gosa-sd-bus
95 our $known_server_db;
97 # holds all registrated clients
98 our $known_clients_db;
99 our $prg= basename($0);
101 %cfg_defaults = (
102 "general" => {
103 "log-file" => [\$log_file, "/var/run/".$prg.".log"],
104 "pid-file" => [\$pid_file, "/var/run/".$prg.".pid"],
105 },
106 "bus" => {
107 "activ" => [\$bus_activ, "true"],
108 },
109 "server" => {
110 # "ip" => [\$server_ip, "0.0.0.0"],
111 "port" => [\$server_port, "20081"],
112 "known-clients" => [\$known_clients_file_name, '/var/lib/gosa-si/clients.db' ],
113 "known-servers" => [\$known_server_file_name, '/var/lib/gosa-si/servers.db'],
114 "gosa-unit-tag" => [\$gosa_unit_tag, ""],
115 },
116 "GOsaPackages" => {
117 "ip" => [\$gosa_ip, "0.0.0.0"],
118 "port" => [\$gosa_port, "20082"],
119 "job-queue" => [\$job_queue_file_name, '/var/lib/gosa-si/jobs.db'],
120 "job-queue-loop-delay" => [\$job_queue_loop_delay, 3],
121 "key" => [\$GosaPackages_key, "none"],
122 },
123 "SIPackages" => {
124 "key" => [\$SIPackages_key, "none"],
125 },
126 );
129 #=== FUNCTION ================================================================
130 # NAME: usage
131 # PARAMETERS: nothing
132 # RETURNS: nothing
133 # DESCRIPTION: print out usage text to STDERR
134 #===============================================================================
135 sub usage {
136 print STDERR << "EOF" ;
137 usage: $prg [-hvf] [-c config]
139 -h : this (help) message
140 -c <file> : config file
141 -f : foreground, process will not be forked to background
142 -v : be verbose (multiple to increase verbosity)
143 -no-bus : starts $prg without connection to bus
144 -no-arp : starts $prg without connection to arp module
146 EOF
147 print "\n" ;
148 }
151 #=== FUNCTION ================================================================
152 # NAME: read_configfile
153 # PARAMETERS: cfg_file - string -
154 # RETURNS: nothing
155 # DESCRIPTION: read cfg_file and set variables
156 #===============================================================================
157 sub read_configfile {
158 my $cfg;
159 if( defined( $cfg_file) && ( length($cfg_file) > 0 )) {
160 if( -r $cfg_file ) {
161 $cfg = Config::IniFiles->new( -file => $cfg_file );
162 } else {
163 print STDERR "Couldn't read config file!\n";
164 }
165 } else {
166 $cfg = Config::IniFiles->new() ;
167 }
168 foreach my $section (keys %cfg_defaults) {
169 foreach my $param (keys %{$cfg_defaults{ $section }}) {
170 my $pinfo = $cfg_defaults{ $section }{ $param };
171 ${@$pinfo[ 0 ]} = $cfg->val( $section, $param, @$pinfo[ 1 ] );
172 }
173 }
174 }
177 #=== FUNCTION ================================================================
178 # NAME: logging
179 # PARAMETERS: level - string - default 'info'
180 # msg - string -
181 # facility - string - default 'LOG_DAEMON'
182 # RETURNS: nothing
183 # DESCRIPTION: function for logging
184 #===============================================================================
185 sub daemon_log {
186 # log into log_file
187 my( $msg, $level ) = @_;
188 if(not defined $msg) { return }
189 if(not defined $level) { $level = 1 }
190 if(defined $log_file){
191 open(LOG_HANDLE, ">>$log_file");
192 if(not defined open( LOG_HANDLE, ">>$log_file" )) {
193 print STDERR "cannot open $log_file: $!";
194 return }
195 chomp($msg);
196 if($level <= $verbose){
197 my ($seconds, $minutes, $hours, $monthday, $month,
198 $year, $weekday, $yearday, $sommertime) = localtime(time);
199 $hours = $hours < 10 ? $hours = "0".$hours : $hours;
200 $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
201 $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
202 my @monthnames = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
203 $month = $monthnames[$month];
204 $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
205 $year+=1900;
206 my $name = $prg;
208 my $log_msg = "$month $monthday $hours:$minutes:$seconds $name $msg\n";
209 print LOG_HANDLE $log_msg;
210 if( $foreground ) {
211 print STDERR $log_msg;
212 }
213 }
214 close( LOG_HANDLE );
215 }
216 #log into syslog
217 # my ($msg, $level, $facility) = @_;
218 # if(not defined $msg) {return}
219 # if(not defined $level) {$level = "info"}
220 # if(not defined $facility) {$facility = "LOG_DAEMON"}
221 # openlog($0, "pid,cons,", $facility);
222 # syslog($level, $msg);
223 # closelog;
224 # return;
225 }
228 #=== FUNCTION ================================================================
229 # NAME: check_cmdline_param
230 # PARAMETERS: nothing
231 # RETURNS: nothing
232 # DESCRIPTION: validates commandline parameter
233 #===============================================================================
234 sub check_cmdline_param () {
235 my $err_config;
236 my $err_counter = 0;
237 if(not defined($cfg_file)) {
238 $cfg_file = "/etc/gosa-si/server.conf";
239 if(! -r $cfg_file) {
240 $err_config = "please specify a config file";
241 $err_counter += 1;
242 }
243 }
244 if( $err_counter > 0 ) {
245 &usage( "", 1 );
246 if( defined( $err_config)) { print STDERR "$err_config\n"}
247 print STDERR "\n";
248 exit( -1 );
249 }
250 }
253 #=== FUNCTION ================================================================
254 # NAME: check_pid
255 # PARAMETERS: nothing
256 # RETURNS: nothing
257 # DESCRIPTION: handels pid processing
258 #===============================================================================
259 sub check_pid {
260 $pid = -1;
261 # Check, if we are already running
262 if( open(LOCK_FILE, "<$pid_file") ) {
263 $pid = <LOCK_FILE>;
264 if( defined $pid ) {
265 chomp( $pid );
266 if( -f "/proc/$pid/stat" ) {
267 my($stat) = `cat /proc/$pid/stat` =~ m/$pid \((.+)\).*/;
268 if( $0 eq $stat ) {
269 close( LOCK_FILE );
270 exit -1;
271 }
272 }
273 }
274 close( LOCK_FILE );
275 unlink( $pid_file );
276 }
278 # create a syslog msg if it is not to possible to open PID file
279 if (not sysopen(LOCK_FILE, $pid_file, O_WRONLY|O_CREAT|O_EXCL, 0644)) {
280 my($msg) = "Couldn't obtain lockfile '$pid_file' ";
281 if (open(LOCK_FILE, '<', $pid_file)
282 && ($pid = <LOCK_FILE>))
283 {
284 chomp($pid);
285 $msg .= "(PID $pid)\n";
286 } else {
287 $msg .= "(unable to read PID)\n";
288 }
289 if( ! ($foreground) ) {
290 openlog( $0, "cons,pid", "daemon" );
291 syslog( "warning", $msg );
292 closelog();
293 }
294 else {
295 print( STDERR " $msg " );
296 }
297 exit( -1 );
298 }
299 }
301 #=== FUNCTION ================================================================
302 # NAME: import_modules
303 # PARAMETERS: module_path - string - abs. path to the directory the modules
304 # are stored
305 # RETURNS: nothing
306 # DESCRIPTION: each file in module_path which ends with '.pm' and activation
307 # state is on is imported by "require 'file';"
308 #===============================================================================
309 sub import_modules {
310 daemon_log(" ", 1);
312 if (not -e $modules_path) {
313 daemon_log("ERROR: cannot find directory or directory is not readable: $modules_path", 1);
314 }
316 opendir (DIR, $modules_path) or die "ERROR while loading modules from directory $modules_path : $!\n";
317 while (defined (my $file = readdir (DIR))) {
318 if (not $file =~ /(\S*?).pm$/) {
319 next;
320 }
321 my $mod_name = $1;
323 if( $file =~ /ArpHandler.pm/ ) {
324 if( $no_arp > 0 ) {
325 next;
326 }
327 }
329 eval { require $file; };
330 if ($@) {
331 daemon_log("ERROR: gosa-si-server could not load module $file", 1);
332 daemon_log("$@", 5);
333 } else {
334 my $info = eval($mod_name.'::get_module_info()');
335 # Only load module if get_module_info() returns a non-null object
336 if( $info ) {
337 my ($input_address, $input_key, $input, $input_active, $input_type) = @{$info};
338 $known_modules->{$mod_name} = $info;
339 daemon_log("module $mod_name loaded", 1);
340 }
341 }
342 }
343 close (DIR);
344 }
347 #=== FUNCTION ================================================================
348 # NAME: sig_int_handler
349 # PARAMETERS: signal - string - signal arose from system
350 # RETURNS: noting
351 # DESCRIPTION: handels tasks to be done befor signal becomes active
352 #===============================================================================
353 sub sig_int_handler {
354 my ($signal) = @_;
356 daemon_log("shutting down gosa-si-server", 1);
357 exit(1);
358 }
359 $SIG{INT} = \&sig_int_handler;
363 sub check_key_and_xml_validity {
364 my ($crypted_msg, $module_key) = @_;
366 my $msg;
367 my $msg_hash;
368 eval{
369 $msg = &decrypt_msg($crypted_msg, $module_key);
371 if ($msg =~ /<xml>/i){
372 &main::daemon_log("decrypted_msg: \n$msg", 8);
373 $msg_hash = $xml->XMLin($msg, ForceArray=>1);
375 # check header
376 my $header_l = $msg_hash->{'header'};
377 if( 1 != @{$header_l} ) {
378 die 'header error';
379 }
380 my $header = @{$header_l}[0];
381 if( 0 == length $header) {
382 die 'header error';
383 }
385 # check source
386 my $source_l = $msg_hash->{'source'};
387 if( not defined @{$source_l} or 1 != @{$source_l} ) {
388 die 'source error';
389 }
390 my $source = @{$source_l}[0];
391 if( 0 == length $source) {
392 die 'source error';
393 }
395 # check target
396 my $target_l = $msg_hash->{'target'};
397 if( 1 != @{$target_l} ) {
398 die'target error';
399 }
400 my $target = @{$target_l}[0];
401 if( 0 == length $target) {
402 die 'target error';
403 }
404 }
405 };
406 if($@) {
407 &main::daemon_log("WARNING: do not understand the message", 5);
408 &main::daemon_log("$@", 8);
409 }
411 return ($msg, $msg_hash);
412 }
415 sub check_outgoing_xml_validity {
416 my ($msg) = @_;
418 my $msg_hash;
419 eval{
420 $msg_hash = $xml->XMLin($msg, ForceArray=>1);
422 ##############
423 # check header
424 my $header_l = $msg_hash->{'header'};
425 if( 1 != @{$header_l} ) {
426 die 'no or more than one headers specified';
427 }
428 my $header = @{$header_l}[0];
429 if( 0 == length $header) {
430 die 'header has length 0';
431 }
433 ##############
434 # check source
435 my $source_l = $msg_hash->{'source'};
436 if( 1 != @{$source_l} ) {
437 die 'no or more than 1 sources specified';
438 }
439 my $source = @{$source_l}[0];
440 if( 0 == length $source) {
441 die 'source has length 0';
442 }
443 unless( $source =~ /^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}:\d+$/ ||
444 $source =~ /^GOSA$/i ) {
445 die "source '$source' is neither a complete ip-address with port nor 'GOSA'";
446 }
448 ##############
449 # check target
450 my $target_l = $msg_hash->{'target'};
451 if( 0 == @{$target_l} ) {
452 die "no targets specified";
453 }
454 foreach my $target (@$target_l) {
455 if( 0 == length $target) {
456 die "target has length 0";
457 }
458 unless( $target =~ /^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}:\d+$/ ||
459 $target =~ /^GOSA$/i ||
460 $target =~ /^\*$/ ||
461 $target =~ /KNOWN_SERVER/i ||
462 $target =~ /^([0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2})$/i ){
463 die "target '$target' is not a complete ip-address with port or a valid target name or a mac-address";
464 }
465 }
466 };
467 if($@) {
468 daemon_log("WARNING: outgoing msg is not gosa-si envelope conform", 5);
469 daemon_log("$@ ".(defined($msg) && length($msg)>0)?$msg:"Empty Message", 8);
470 $msg_hash = undef;
471 }
473 return ($msg_hash);
474 }
477 sub input_from_known_server {
478 my ($input, $remote_ip) = @_ ;
479 my ($msg, $msg_hash, $module);
481 my $sql_statement= "SELECT * FROM known_server";
482 my $query_res = $known_server_db->select_dbentry( $sql_statement );
484 while( my ($hit_num, $hit) = each %{ $query_res } ) {
485 my $host_name = $hit->{hostname};
486 if( not $host_name =~ "^$remote_ip") {
487 next;
488 }
489 my $host_key = $hit->{hostkey};
490 daemon_log("SIPackages: known_server host_name: $host_name", 7);
491 daemon_log("SIPackages: known_server host_key: $host_key", 7);
493 # check if module can open msg envelope with module key
494 my ($tmp_msg, $tmp_msg_hash) = &check_key_and_xml_validity($input, $host_key);
495 if( (!$tmp_msg) || (!$tmp_msg_hash) ) {
496 daemon_log("SIPackages: deciphering raise error", 7);
497 daemon_log("$@", 8);
498 next;
499 }
500 else {
501 $msg = $tmp_msg;
502 $msg_hash = $tmp_msg_hash;
503 $module = "SIPackages";
504 last;
505 }
506 }
508 if( (!$msg) || (!$msg_hash) || (!$module) ) {
509 daemon_log("Incoming message is not from a known server", 3);
510 }
512 return ($msg, $msg_hash, $module);
513 }
516 sub input_from_known_client {
517 my ($input, $remote_ip) = @_ ;
518 my ($msg, $msg_hash, $module);
520 my $sql_statement= "SELECT * FROM known_clients";
521 my $query_res = $known_clients_db->select_dbentry( $sql_statement );
522 while( my ($hit_num, $hit) = each %{ $query_res } ) {
523 my $host_name = $hit->{hostname};
524 if( not $host_name =~ /^$remote_ip:\d*$/) {
525 next;
526 }
527 my $host_key = $hit->{hostkey};
528 &daemon_log("SIPackages: known_client host_name: $host_name", 7);
529 &daemon_log("SIPackages: known_client host_key: $host_key", 7);
531 # check if module can open msg envelope with module key
532 ($msg, $msg_hash) = &check_key_and_xml_validity($input, $host_key);
534 if( (!$msg) || (!$msg_hash) ) {
535 &daemon_log("SIPackages: deciphering raise error", 7);
536 &daemon_log("$@", 8);
537 next;
538 }
539 else {
540 $module = "SIPackages";
541 last;
542 }
543 }
545 if( (!$msg) || (!$msg_hash) || (!$module) ) {
546 &daemon_log("Incoming message is not from a known client", 3);
547 }
549 return ($msg, $msg_hash, $module);
550 }
553 sub input_from_unknown_host {
554 no strict "refs";
555 my ($input) = @_ ;
556 my ($msg, $msg_hash, $module);
558 my %act_modules = %$known_modules;
560 while( my ($mod, $info) = each(%act_modules)) {
562 # check a key exists for this module
563 my $module_key = ${$mod."_key"};
564 if( ! $module_key ) {
565 if( $mod eq 'ArpHandler' ) {
566 next;
567 }
568 daemon_log("ERROR: no key specified in config file for $mod", 1);
569 next;
570 }
571 daemon_log("$mod: $module_key", 5);
573 # check if module can open msg envelope with module key
574 ($msg, $msg_hash) = &check_key_and_xml_validity($input, $module_key);
575 if( (!$msg) || (!$msg_hash) ) {
576 #daemon_log("$mod: deciphering failed", 5);
577 next;
578 }
579 else {
580 $module = $mod;
581 last;
582 }
583 }
585 if( (!$msg) || (!$msg_hash) || (!$module)) {
586 daemon_log("Incoming message is not from a unknown host", 5);
587 }
589 return ($msg, $msg_hash, $module);
590 }
593 sub create_ciphering {
594 my ($passwd) = @_;
595 if((!defined($passwd)) || length($passwd)==0) {
596 $passwd = "";
597 }
598 $passwd = substr(md5_hex("$passwd") x 32, 0, 32);
599 my $iv = substr(md5_hex('GONICUS GmbH'),0, 16);
600 my $my_cipher = Crypt::Rijndael->new($passwd , Crypt::Rijndael::MODE_CBC());
601 $my_cipher->set_iv($iv);
602 return $my_cipher;
603 }
606 sub encrypt_msg {
607 my ($msg, $key) = @_;
608 my $my_cipher = &create_ciphering($key);
609 {
610 use bytes;
611 $msg = "\0"x(16-length($msg)%16).$msg;
612 }
613 $msg = $my_cipher->encrypt($msg);
614 chomp($msg = &encode_base64($msg));
615 # there are no newlines allowed inside msg
616 $msg=~ s/\n//g;
617 return $msg;
618 }
621 sub decrypt_msg {
623 my ($msg, $key) = @_ ;
624 $msg = &decode_base64($msg);
625 my $my_cipher = &create_ciphering($key);
626 $msg = $my_cipher->decrypt($msg);
627 $msg =~ s/\0*//g;
628 return $msg;
629 }
632 sub get_encrypt_key {
633 my ($target) = @_ ;
634 my $encrypt_key;
635 my $error = 0;
637 # target can be in known_server
638 if( not defined $encrypt_key ) {
639 my $sql_statement= "SELECT * FROM known_server WHERE hostname='$target'";
640 my $query_res = $known_server_db->select_dbentry( $sql_statement );
641 while( my ($hit_num, $hit) = each %{ $query_res } ) {
642 my $host_name = $hit->{hostname};
643 if( $host_name ne $target ) {
644 next;
645 }
646 $encrypt_key = $hit->{hostkey};
647 last;
648 }
649 }
651 # target can be in known_client
652 if( not defined $encrypt_key ) {
653 my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$target'";
654 my $query_res = $known_clients_db->select_dbentry( $sql_statement );
655 while( my ($hit_num, $hit) = each %{ $query_res } ) {
656 my $host_name = $hit->{hostname};
657 if( $host_name ne $target ) {
658 next;
659 }
660 $encrypt_key = $hit->{hostkey};
661 last;
662 }
663 }
665 return $encrypt_key;
666 }
669 #=== FUNCTION ================================================================
670 # NAME: open_socket
671 # PARAMETERS: PeerAddr string something like 192.168.1.1 or 192.168.1.1:10000
672 # [PeerPort] string necessary if port not appended by PeerAddr
673 # RETURNS: socket IO::Socket::INET
674 # DESCRIPTION: open a socket to PeerAddr
675 #===============================================================================
676 sub open_socket {
677 my ($PeerAddr, $PeerPort) = @_ ;
678 if(defined($PeerPort)){
679 $PeerAddr = $PeerAddr.":".$PeerPort;
680 }
681 my $socket;
682 $socket = new IO::Socket::INET(PeerAddr => $PeerAddr,
683 Porto => "tcp",
684 Type => SOCK_STREAM,
685 Timeout => 5,
686 );
687 if(not defined $socket) {
688 return;
689 }
690 &daemon_log("open_socket: $PeerAddr", 7);
691 return $socket;
692 }
695 #=== FUNCTION ================================================================
696 # NAME: get_ip
697 # PARAMETERS: interface name (i.e. eth0)
698 # RETURNS: (ip address)
699 # DESCRIPTION: Uses ioctl to get ip address directly from system.
700 #===============================================================================
701 sub get_ip {
702 my $ifreq= shift;
703 my $result= "";
704 my $SIOCGIFADDR= 0x8915; # man 2 ioctl_list
705 my $proto= getprotobyname('ip');
707 socket SOCKET, PF_INET, SOCK_DGRAM, $proto
708 or die "socket: $!";
710 if(ioctl SOCKET, $SIOCGIFADDR, $ifreq) {
711 my ($if, $sin) = unpack 'a16 a16', $ifreq;
712 my ($port, $addr) = sockaddr_in $sin;
713 my $ip = inet_ntoa $addr;
715 if ($ip && length($ip) > 0) {
716 $result = $ip;
717 }
718 }
720 return $result;
721 }
723 sub get_local_ip_for_remote_ip {
724 my $remote_ip= shift;
725 my $result="0.0.0.0";
727 if($remote_ip =~ /^(\d\d?\d?\.){3}\d\d?\d?$/) {
728 if($remote_ip eq "127.0.0.1") {
729 $result = "127.0.0.1";
730 } else {
731 my $PROC_NET_ROUTE= ('/proc/net/route');
733 open(PROC_NET_ROUTE, "<$PROC_NET_ROUTE")
734 or die "Could not open $PROC_NET_ROUTE";
736 my @ifs = <PROC_NET_ROUTE>;
738 close(PROC_NET_ROUTE);
740 # Eat header line
741 shift @ifs;
742 chomp @ifs;
743 foreach my $line(@ifs) {
744 my ($Iface,$Destination,$Gateway,$Flags,$RefCnt,$Use,$Metric,$Mask,$MTU,$Window,$IRTT)=split(/\s/, $line);
745 my $destination;
746 my $mask;
747 my ($d,$c,$b,$a)=unpack('a2 a2 a2 a2', $Destination);
748 $destination= sprintf("%d.%d.%d.%d", hex($a), hex($b), hex($c), hex($d));
749 ($d,$c,$b,$a)=unpack('a2 a2 a2 a2', $Mask);
750 $mask= sprintf("%d.%d.%d.%d", hex($a), hex($b), hex($c), hex($d));
751 if(new NetAddr::IP($remote_ip)->within(new NetAddr::IP($destination, $mask))) {
752 # destination matches route, save mac and exit
753 $result= &get_ip($Iface);
754 last;
755 }
756 }
757 }
758 } else {
759 daemon_log("get_local_ip_for_remote_ip was called with a non-ip parameter: $remote_ip", 1);
760 }
761 return $result;
762 }
764 sub send_msg_to_target {
765 my ($msg, $address, $encrypt_key, $msg_header) = @_ ;
766 my $error = 0;
767 my $header;
768 my $new_status;
769 my $act_status;
770 my ($sql_statement, $res);
772 if( $msg_header ) {
773 $header = "'$msg_header'-";
774 }
775 else {
776 $header = "";
777 }
779 # Patch the source ip
780 if($msg =~ /<source>0\.0\.0\.0:\d*?<\/source>/) {
781 my $remote_ip = &get_local_ip_for_remote_ip(sprintf("%s", $address =~ /^([0-9\.]*?):.*$/));
782 $msg =~ s/<source>(0\.0\.0\.0):(\d*?)<\/source>/<source>$remote_ip:$2<\/source>/s;
783 }
785 # encrypt xml msg
786 my $crypted_msg = &encrypt_msg($msg, $encrypt_key);
788 # opensocket
789 my $socket = &open_socket($address);
790 if( !$socket ) {
791 daemon_log("cannot send ".$header."msg to $address , host not reachable", 1);
792 $error++;
793 }
795 if( $error == 0 ) {
796 # send xml msg
797 print $socket $crypted_msg."\n";
799 daemon_log("send ".$header."msg to $address", 1);
800 daemon_log("message:\n$msg", 8);
802 }
804 # close socket in any case
805 if( $socket ) {
806 close $socket;
807 }
809 if( $error > 0 ) { $new_status = "down"; }
810 else { $new_status = $msg_header; }
813 # known_clients
814 $sql_statement = "SELECT * FROM known_clients WHERE hostname='$address'";
815 $res = $known_clients_db->select_dbentry($sql_statement);
816 if( keys(%$res) > 0) {
817 $act_status = $res->{1}->{'status'};
818 if( $act_status eq "down" ) {
819 $sql_statement = "DELETE FROM known_clients WHERE hostname='$address'";
820 $res = $known_clients_db->del_dbentry($sql_statement);
821 daemon_log("WARNING: failed 2x to send msg to host '$address', delete host from known_clients", 3);
822 }
823 else {
824 $sql_statement = "UPDATE known_clients SET status='$new_status' WHERE hostname='$address'";
825 $res = $known_clients_db->update_dbentry($sql_statement);
826 if($new_status eq "down"){
827 daemon_log("WARNING: set '$address' from status '$act_status' to '$new_status'", 3);
828 }
829 else {
830 daemon_log("INFO: set '$address' from status '$act_status' to '$new_status'", 5);
831 }
832 }
833 }
835 # known_server
836 $sql_statement = "SELECT * FROM known_server WHERE hostname='$address'";
837 $res = $known_server_db->select_dbentry($sql_statement);
838 if( keys(%$res) > 0 ) {
839 $act_status = $res->{1}->{'status'};
840 if( $act_status eq "down" ) {
841 $sql_statement = "DELETE FROM known_server WHERE hostname='$address'";
842 $res = $known_server_db->del_dbentry($sql_statement);
843 daemon_log("WARNING: failed 2x to a send msg to host '$address', delete host from known_server", 3);
844 }
845 else {
846 $sql_statement = "UPDATE known_server SET status='$new_status' WHERE hostname='$address'";
847 $res = $known_server_db->update_dbentry($sql_statement);
848 if($new_status eq "down"){
849 daemon_log("WARNING: set '$address' from status '$act_status' to '$new_status'", 3);
850 }
851 else {
852 daemon_log("INFO: set '$address' from status '$act_status' to '$new_status'", 5);
853 }
854 }
855 }
857 return;
858 }
861 sub _start {
862 my ($kernel) = $_[KERNEL];
863 &trigger_db_loop($kernel);
864 }
867 sub client_input {
868 no strict "refs";
869 my ($kernel, $session, $heap,$input,$wheel) = @_[KERNEL, SESSION, HEAP, ARG0, ARG1];
870 my $session_id = $session->ID;
871 my ($msg, $msg_hash, $module);
872 my $error = 0;
873 my $answer_l;
874 my ($answer_header, @answer_target_l, $answer_source);
875 my $client_answer;
877 daemon_log("Incoming msg from '".$heap->{'remote_ip'}."'", 7);
878 daemon_log("message:\n$input", 8);
880 ####################
881 # check incoming msg
882 # msg is from a new client or gosa
883 ($msg, $msg_hash, $module) = &input_from_unknown_host($input);
884 # msg is from a gosa-si-server or gosa-si-bus
885 if(( !$msg ) || ( !$msg_hash ) || ( !$module )){
886 ($msg, $msg_hash, $module) = &input_from_known_server($input, $heap->{'remote_ip'});
887 }
888 # msg is from a gosa-si-client
889 if(( !$msg ) || ( !$msg_hash ) || ( !$module )){
890 ($msg, $msg_hash, $module) = &input_from_known_client($input, $heap->{'remote_ip'});
891 }
892 # an error occurred
893 if(( !$msg ) || ( !$msg_hash ) || ( !$module )){
894 $error++;
895 }
897 ######################
898 # process incoming msg
899 if( $error == 0) {
900 daemon_log("Processing module ".$module, 5);
901 $answer_l = &{ $module."::process_incoming_msg" }($msg, $msg_hash, $session_id);
903 if ( 0 > @{$answer_l} ) {
904 my $answer_str = join("\n", @{$answer_l});
905 daemon_log("$module: Got answer from module: \n".$answer_str,8);
906 }
907 }
908 if( !$answer_l ) { $error++ };
910 ########
911 # answer
912 if( $error == 0 ) {
914 foreach my $answer ( @{$answer_l} ) {
915 # for each answer in answer list
917 # check outgoing msg to xml validity
918 my $answer_hash = &check_outgoing_xml_validity($answer);
919 if( not defined $answer_hash ) {
920 next;
921 }
923 $answer_header = @{$answer_hash->{'header'}}[0];
924 @answer_target_l = @{$answer_hash->{'target'}};
925 $answer_source = @{$answer_hash->{'source'}}[0];
927 # deliver msg to all targets
928 foreach my $answer_target ( @answer_target_l ) {
929 if( $answer_target eq "*" ) {
930 # answer is for all clients
931 my $sql_statement= "SELECT * FROM known_clients";
932 my $query_res = $known_clients_db->select_dbentry( $sql_statement );
933 while( my ($hit_num, $hit) = each %{ $query_res } ) {
934 my $host_name = $hit->{hostname};
935 my $host_key = $hit->{hostkey};
936 &send_msg_to_target($answer, $host_name, $host_key, $answer_header);
937 }
938 }
939 elsif( $answer_target eq "GOSA" ) {
940 $answer =~ /<session_id>(\d+)<\/session_id>/;
941 my $session_id = $1;
942 my $add_on = "";
944 if( defined $session_id ) {
945 $add_on = ".session_id=$session_id";
946 }
948 # answer is for GOSA and has to returned to connected client
949 my $gosa_answer = &encrypt_msg($answer, $GosaPackages_key);
950 $client_answer = $gosa_answer.$add_on;
951 }
952 elsif( $answer_target eq "KNOWN_SERVER" ) {
953 # answer is for all server in known_server
954 my $sql_statement= "SELECT * FROM known_server";
955 my $query_res = $known_server_db->select_dbentry( $sql_statement );
956 while( my ($hit_num, $hit) = each %{ $query_res } ) {
957 my $host_name = $hit->{hostname};
958 my $host_key = $hit->{hostkey};
959 $answer =~ s/KNOWN_SERVER/$host_name/g;
960 &send_msg_to_target($answer, $host_name, $host_key, $answer_header);
961 }
962 }
963 elsif( $answer_target =~ /^([0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2})$/i ) {
964 daemon_log("target is mac address '$answer_target', looking for host in known_clients", 3);
965 my $sql_statement = "SELECT * FROM known_clients WHERE macaddress='$answer_target'";
966 my $query_res = $known_clients_db->select_dbentry( $sql_statement );
967 my $found_ip_flag = 0;
968 while( my ($hit_num, $hit) = each %{ $query_res } ) {
969 my $host_name = $hit->{hostname};
970 my $host_key = $hit->{hostkey};
971 $answer =~ s/$answer_target/$host_name/g;
972 daemon_log("found host '$host_name', assoziated to '$answer_target'", 3);
973 &send_msg_to_target($answer, $host_name, $host_key, $answer_header);
974 $found_ip_flag++ ;
975 }
976 if( $found_ip_flag == 0) {
977 daemon_log("WARNING: no host found in known_clients with mac address '$answer_target'", 3);
978 if( $bus_activ eq "true" ) {
979 daemon_log("INFO: try to forward msg '$answer_header' to bus '$bus_address'", 5);
980 my $sql_statement = "SELECT * FROM known_server WHERE hostname='$bus_address'";
981 my $query_res = $known_server_db->select_dbentry( $sql_statement );
982 while( my ($hit_num, $hit) = each %{ $query_res } ) {
983 my $bus_address = $hit->{hostname};
984 my $bus_key = $hit->{hostkey};
985 &send_msg_to_target($answer, $bus_address, $bus_key, $answer_header);
986 last;
987 }
988 }
990 }
991 } else {
992 # ... answer is for one specific host
994 # get encrypt_key
995 my $encrypt_key = &get_encrypt_key($answer_target);
996 if( not defined $encrypt_key ) {
997 # unknown target, forward msg to bus
998 daemon_log("WARNING: unknown target '$answer_target'", 3);
999 if( $bus_activ eq "true" ) {
1000 daemon_log("INFO: try to forward msg '$answer_header' to bus '$bus_address'", 5);
1001 my $sql_statement = "SELECT * FROM known_server WHERE hostname='$bus_address'";
1002 my $query_res = $known_server_db->select_dbentry( $sql_statement );
1003 my $res_length = keys( %{$query_res} );
1004 if( $res_length == 0 ){
1005 daemon_log("WARNING: send '$answer_header' to '$bus_address' failed, no bus found in known_server", 3);
1006 }
1007 else {
1008 while( my ($hit_num, $hit) = each %{ $query_res } ) {
1009 my $bus_key = $hit->{hostkey};
1010 &send_msg_to_target($answer, $bus_address, $bus_key, $answer_header);
1011 }
1012 }
1013 }
1014 next;
1015 }
1016 # send_msg
1017 &send_msg_to_target($answer, $answer_target, $encrypt_key, $answer_header);
1018 }
1019 }
1020 }
1021 }
1023 if( $client_answer ) {
1024 if( $client_answer =~ s/session_id=(\d+)$// ) {
1025 my $session_id = $1;
1026 if( defined $session_id ) {
1027 my $session_reference = $kernel->ID_id_to_session($session_id);
1028 $heap = $session_reference->get_heap();
1029 }
1030 }
1031 $heap->{client}->put($client_answer);
1032 }
1034 return;
1035 }
1039 sub trigger_db_loop {
1040 # my ($kernel) = $_[KERNEL];
1041 my ($kernel) = @_ ;
1042 $kernel->delay_set('watch_for_new_jobs', $job_queue_loop_delay);
1043 }
1046 sub watch_for_new_jobs {
1047 my ($kernel,$heap) = @_[KERNEL, HEAP];
1049 # check gosa job queue for jobs with executable timestamp
1050 my $timestamp = &get_time();
1052 my $sql_statement = "SELECT * FROM ".$job_queue_table_name.
1053 " WHERE status='waiting' AND timestamp<'$timestamp'";
1055 my $res = $job_db->select_dbentry( $sql_statement );
1057 while( my ($id, $hit) = each %{$res} ) {
1059 my $jobdb_id = $hit->{id};
1060 my $macaddress = $hit->{macaddress};
1061 my $job_msg_hash = &transform_msg2hash($hit->{xmlmessage});
1062 my $out_msg_hash = $job_msg_hash;
1063 my $sql_statement = "SELECT * FROM known_clients WHERE macaddress='$macaddress'";
1064 my $res_hash = $known_clients_db->select_dbentry( $sql_statement );
1065 # expect macaddress is unique!!!!!!
1066 my $target = $res_hash->{1}->{hostname};
1068 if (not defined $target) {
1069 &daemon_log("ERROR: no host found for mac address: $job_msg_hash->{mac}[0]", 1);
1070 &daemon_log("xml message: $hit->{xmlmessage}", 5);
1071 my $sql_statement = "UPDATE $job_queue_table_name ".
1072 "SET status='error', result='no host found for mac address' ".
1073 "WHERE id='$jobdb_id'";
1074 my $res = $job_db->update_dbentry($sql_statement);
1075 next;
1076 }
1078 # add target
1079 &add_content2xml_hash($out_msg_hash, "target", $target);
1081 # add new header
1082 my $out_header = $job_msg_hash->{header}[0];
1083 $out_header =~ s/job_/gosa_/;
1084 delete $out_msg_hash->{header};
1085 &add_content2xml_hash($out_msg_hash, "header", $out_header);
1087 # add sqlite_id
1088 &add_content2xml_hash($out_msg_hash, "jobdb_id", $jobdb_id);
1090 my $out_msg = &create_xml_string($out_msg_hash);
1092 # encrypt msg as a GosaPackage module
1093 my $cipher = &create_ciphering($GosaPackages_key);
1094 my $crypted_out_msg = &encrypt_msg($out_msg, $cipher);
1096 my $error = &send_msg_hash2address($out_msg_hash, "$gosa_ip:$gosa_port", $GosaPackages_key);
1098 if ($error == 0) {
1099 my $sql_statement = "UPDATE $job_queue_table_name ".
1100 "SET status='processing', targettag='$target' ".
1101 "WHERE id='$jobdb_id'";
1102 my $res = $job_db->update_dbentry($sql_statement);
1103 } else {
1104 my $sql_statement = "UPDATE $job_queue_table_name ".
1105 "SET status='error' ".
1106 "WHERE id='$jobdb_id'";
1107 my $res = $job_db->update_dbentry($sql_statement);
1108 }
1109 }
1111 $kernel->delay_set('watch_for_new_jobs',3);
1112 }
1115 #==== MAIN = main ==============================================================
1116 # parse commandline options
1117 Getopt::Long::Configure( "bundling" );
1118 GetOptions("h|help" => \&usage,
1119 "c|config=s" => \$cfg_file,
1120 "f|foreground" => \$foreground,
1121 "v|verbose+" => \$verbose,
1122 "no-bus+" => \$no_bus,
1123 "no-arp+" => \$no_arp,
1124 );
1126 # read and set config parameters
1127 &check_cmdline_param ;
1128 &read_configfile;
1129 &check_pid;
1131 $SIG{CHLD} = 'IGNORE';
1133 # forward error messages to logfile
1134 if( ! $foreground ) {
1135 open(STDERR, '>>', $log_file);
1136 open(STDOUT, '>>', $log_file);
1137 }
1139 # Just fork, if we are not in foreground mode
1140 if( ! $foreground ) {
1141 chdir '/' or die "Can't chdir to /: $!";
1142 $pid = fork;
1143 setsid or die "Can't start a new session: $!";
1144 umask 0;
1145 } else {
1146 $pid = $$;
1147 }
1149 # Do something useful - put our PID into the pid_file
1150 if( 0 != $pid ) {
1151 open( LOCK_FILE, ">$pid_file" );
1152 print LOCK_FILE "$pid\n";
1153 close( LOCK_FILE );
1154 if( !$foreground ) {
1155 exit( 0 )
1156 };
1157 }
1159 daemon_log(" ", 1);
1160 daemon_log("$0 started!", 1);
1162 if ($no_bus > 0) {
1163 $bus_activ = "false"
1164 }
1168 # delete old DBsqlite lock files
1169 #unlink('/tmp/gosa_si_lock*');
1171 # connect to gosa-si job queue
1172 my @job_col_names = ("id INTEGER", "timestamp", "status", "result", "headertag", "targettag", "xmlmessage", "macaddress");
1173 $job_db = GOSA::DBsqlite->new($job_queue_file_name);
1174 $job_db->create_table('jobs', \@job_col_names);
1176 # connect to known_clients_db
1177 my @clients_col_names = ('hostname', 'status', 'hostkey', 'timestamp', 'macaddress', 'events');
1178 $known_clients_db = GOSA::DBsqlite->new($known_clients_file_name);
1179 $known_clients_db->create_table('known_clients', \@clients_col_names);
1181 # connect to known_server_db
1182 my @server_col_names = ('hostname', 'status', 'hostkey', 'timestamp');
1183 $known_server_db = GOSA::DBsqlite->new($known_server_file_name);
1184 $known_server_db->create_table('known_server', \@server_col_names);
1186 # create xml object used for en/decrypting
1187 $xml = new XML::Simple();
1189 # create socket for incoming xml messages
1190 POE::Component::Server::TCP->new(
1191 Port => $server_port,
1192 ClientInput => \&client_input,
1193 );
1194 daemon_log("start socket for incoming xml messages at port '$server_port' ", 1);
1196 # create session for repeatedly checking the job queue for jobs
1197 POE::Session->create(
1198 inline_states => {
1199 _start => \&_start,
1200 watch_for_new_jobs => \&watch_for_new_jobs,
1201 }
1202 );
1205 # import all modules
1206 &import_modules;
1208 # check wether all modules are gosa-si valid passwd check
1210 POE::Kernel->run();
1211 exit;