9860dcfc4b7275d1d344e5b5d724b420bc9d7647
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;
28 use utf8;
30 use Fcntl;
31 use IO::Socket::INET;
32 use IO::Handle;
33 use IO::Select;
34 use Symbol qw(qualify_to_ref);
35 use Crypt::Rijndael;
36 use MIME::Base64;
37 use Digest::MD5 qw(md5 md5_hex md5_base64);
38 use XML::Simple;
39 use Data::Dumper;
40 use Sys::Syslog qw( :DEFAULT setlogsock);
41 use Cwd;
42 use File::Spec;
43 use File::Basename;
44 use GOSA::DBsqlite;
45 use GOSA::GosaSupportDaemon;
46 use POE qw(Component::Server::TCP);
48 my $modules_path = "/usr/lib/gosa-si/modules";
49 use lib "/usr/lib/gosa-si/modules";
51 my (%cfg_defaults, $foreground, $verbose, $ping_timeout);
52 my ($bus_activ, $bus, $msg_to_bus, $bus_cipher);
53 my ($server, $server_mac_address);
54 my ($gosa_server, $job_queue_timeout, $job_queue_loop_delay);
55 my ($known_modules);
56 my ($pid_file, $procid, $pid, $log_file);
57 my ($arp_activ, $arp_fifo);
58 my ($xml);
60 # variables declared in config file are always set to 'our'
61 our (%cfg_defaults, $log_file, $pid_file,
62 $server_ip, $server_port, $SIPackages_key,
63 $arp_activ, $gosa_unit_tag,
64 $GosaPackages_key, $gosa_ip, $gosa_port, $gosa_timeout,
65 );
67 # additional variable which should be globaly accessable
68 our $server_address;
69 our $bus_address;
70 our $gosa_address;
71 our $no_bus;
72 our $no_arp;
73 our $verbose;
74 our $forground;
75 our $cfg_file;
77 # specifies the verbosity of the daemon_log
78 $verbose = 0 ;
80 # if foreground is not null, script will be not forked to background
81 $foreground = 0 ;
83 # specifies the timeout seconds while checking the online status of a registrating client
84 $ping_timeout = 5;
86 $no_bus = 0;
87 $bus_activ = "true";
89 $no_arp = 0;
91 our $prg= basename($0);
93 # holds all gosa jobs
94 my $job_queue_file_name;
95 our $job_db;
96 our $job_queue_tn = 'jobs';
98 # holds all other gosa-sd as well as the gosa-sd-bus
99 my $known_server_file_name;
100 our $known_server_db;
101 our $known_server_tn = "known_server";
103 # holds all registrated clients
104 my $known_clients_file_name;
105 our $known_clients_db;
106 our $known_clients_tn = "known_clients";
108 # holds all logged in user at each client
109 my $login_users_file_name;
110 our $login_users_db;
111 our $login_users_tn = "login_users";
113 %cfg_defaults = (
114 "general" => {
115 "log-file" => [\$log_file, "/var/run/".$prg.".log"],
116 "pid-file" => [\$pid_file, "/var/run/".$prg.".pid"],
117 },
118 "bus" => {
119 "activ" => [\$bus_activ, "true"],
120 },
121 "server" => {
122 # "ip" => [\$server_ip, "0.0.0.0"],
123 "port" => [\$server_port, "20081"],
124 "known-clients" => [\$known_clients_file_name, '/var/lib/gosa-si/clients.db' ],
125 "known-servers" => [\$known_server_file_name, '/var/lib/gosa-si/servers.db'],
126 "login-users" => [\$login_users_file_name, '/var/lib/gosa-si/users.db'],
127 "gosa-unit-tag" => [\$gosa_unit_tag, ""],
128 },
129 "GOsaPackages" => {
130 "ip" => [\$gosa_ip, "0.0.0.0"],
131 "port" => [\$gosa_port, "20082"],
132 "job-queue" => [\$job_queue_file_name, '/var/lib/gosa-si/jobs.db'],
133 "job-queue-loop-delay" => [\$job_queue_loop_delay, 3],
134 "key" => [\$GosaPackages_key, "none"],
135 },
136 "SIPackages" => {
137 "key" => [\$SIPackages_key, "none"],
138 },
139 );
142 #=== FUNCTION ================================================================
143 # NAME: usage
144 # PARAMETERS: nothing
145 # RETURNS: nothing
146 # DESCRIPTION: print out usage text to STDERR
147 #===============================================================================
148 sub usage {
149 print STDERR << "EOF" ;
150 usage: $prg [-hvf] [-c config]
152 -h : this (help) message
153 -c <file> : config file
154 -f : foreground, process will not be forked to background
155 -v : be verbose (multiple to increase verbosity)
156 -no-bus : starts $prg without connection to bus
157 -no-arp : starts $prg without connection to arp module
159 EOF
160 print "\n" ;
161 }
164 #=== FUNCTION ================================================================
165 # NAME: read_configfile
166 # PARAMETERS: cfg_file - string -
167 # RETURNS: nothing
168 # DESCRIPTION: read cfg_file and set variables
169 #===============================================================================
170 sub read_configfile {
171 my $cfg;
172 if( defined( $cfg_file) && ( length($cfg_file) > 0 )) {
173 if( -r $cfg_file ) {
174 $cfg = Config::IniFiles->new( -file => $cfg_file );
175 } else {
176 print STDERR "Couldn't read config file!\n";
177 }
178 } else {
179 $cfg = Config::IniFiles->new() ;
180 }
181 foreach my $section (keys %cfg_defaults) {
182 foreach my $param (keys %{$cfg_defaults{ $section }}) {
183 my $pinfo = $cfg_defaults{ $section }{ $param };
184 ${@$pinfo[ 0 ]} = $cfg->val( $section, $param, @$pinfo[ 1 ] );
185 }
186 }
187 }
190 #=== FUNCTION ================================================================
191 # NAME: logging
192 # PARAMETERS: level - string - default 'info'
193 # msg - string -
194 # facility - string - default 'LOG_DAEMON'
195 # RETURNS: nothing
196 # DESCRIPTION: function for logging
197 #===============================================================================
198 sub daemon_log {
199 # log into log_file
200 my( $msg, $level ) = @_;
201 if(not defined $msg) { return }
202 if(not defined $level) { $level = 1 }
203 if(defined $log_file){
204 open(LOG_HANDLE, ">>$log_file");
205 if(not defined open( LOG_HANDLE, ">>$log_file" )) {
206 print STDERR "cannot open $log_file: $!";
207 return }
208 chomp($msg);
209 if($level <= $verbose){
210 my ($seconds, $minutes, $hours, $monthday, $month,
211 $year, $weekday, $yearday, $sommertime) = localtime(time);
212 $hours = $hours < 10 ? $hours = "0".$hours : $hours;
213 $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
214 $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
215 my @monthnames = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
216 $month = $monthnames[$month];
217 $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
218 $year+=1900;
219 my $name = $prg;
221 my $log_msg = "$month $monthday $hours:$minutes:$seconds $name $msg\n";
222 print LOG_HANDLE $log_msg;
223 if( $foreground ) {
224 print STDERR $log_msg;
225 }
226 }
227 close( LOG_HANDLE );
228 }
229 }
232 #=== FUNCTION ================================================================
233 # NAME: check_cmdline_param
234 # PARAMETERS: nothing
235 # RETURNS: nothing
236 # DESCRIPTION: validates commandline parameter
237 #===============================================================================
238 sub check_cmdline_param () {
239 my $err_config;
240 my $err_counter = 0;
241 if(not defined($cfg_file)) {
242 $cfg_file = "/etc/gosa-si/server.conf";
243 if(! -r $cfg_file) {
244 $err_config = "please specify a config file";
245 $err_counter += 1;
246 }
247 }
248 if( $err_counter > 0 ) {
249 &usage( "", 1 );
250 if( defined( $err_config)) { print STDERR "$err_config\n"}
251 print STDERR "\n";
252 exit( -1 );
253 }
254 }
257 #=== FUNCTION ================================================================
258 # NAME: check_pid
259 # PARAMETERS: nothing
260 # RETURNS: nothing
261 # DESCRIPTION: handels pid processing
262 #===============================================================================
263 sub check_pid {
264 $pid = -1;
265 # Check, if we are already running
266 if( open(LOCK_FILE, "<$pid_file") ) {
267 $pid = <LOCK_FILE>;
268 if( defined $pid ) {
269 chomp( $pid );
270 if( -f "/proc/$pid/stat" ) {
271 my($stat) = `cat /proc/$pid/stat` =~ m/$pid \((.+)\).*/;
272 if( $0 eq $stat ) {
273 close( LOCK_FILE );
274 exit -1;
275 }
276 }
277 }
278 close( LOCK_FILE );
279 unlink( $pid_file );
280 }
282 # create a syslog msg if it is not to possible to open PID file
283 if (not sysopen(LOCK_FILE, $pid_file, O_WRONLY|O_CREAT|O_EXCL, 0644)) {
284 my($msg) = "Couldn't obtain lockfile '$pid_file' ";
285 if (open(LOCK_FILE, '<', $pid_file)
286 && ($pid = <LOCK_FILE>))
287 {
288 chomp($pid);
289 $msg .= "(PID $pid)\n";
290 } else {
291 $msg .= "(unable to read PID)\n";
292 }
293 if( ! ($foreground) ) {
294 openlog( $0, "cons,pid", "daemon" );
295 syslog( "warning", $msg );
296 closelog();
297 }
298 else {
299 print( STDERR " $msg " );
300 }
301 exit( -1 );
302 }
303 }
305 #=== FUNCTION ================================================================
306 # NAME: import_modules
307 # PARAMETERS: module_path - string - abs. path to the directory the modules
308 # are stored
309 # RETURNS: nothing
310 # DESCRIPTION: each file in module_path which ends with '.pm' and activation
311 # state is on is imported by "require 'file';"
312 #===============================================================================
313 sub import_modules {
314 daemon_log(" ", 1);
316 if (not -e $modules_path) {
317 daemon_log("ERROR: cannot find directory or directory is not readable: $modules_path", 1);
318 }
320 opendir (DIR, $modules_path) or die "ERROR while loading modules from directory $modules_path : $!\n";
321 while (defined (my $file = readdir (DIR))) {
322 if (not $file =~ /(\S*?).pm$/) {
323 next;
324 }
325 my $mod_name = $1;
327 if( $file =~ /ArpHandler.pm/ ) {
328 if( $no_arp > 0 ) {
329 next;
330 }
331 }
333 eval { require $file; };
334 if ($@) {
335 daemon_log("ERROR: gosa-si-server could not load module $file", 1);
336 daemon_log("$@", 5);
337 } else {
338 my $info = eval($mod_name.'::get_module_info()');
339 # Only load module if get_module_info() returns a non-null object
340 if( $info ) {
341 my ($input_address, $input_key, $input, $input_active, $input_type) = @{$info};
342 $known_modules->{$mod_name} = $info;
343 daemon_log("INFO: module $mod_name loaded", 5);
344 }
345 }
346 }
347 close (DIR);
348 }
351 #=== FUNCTION ================================================================
352 # NAME: sig_int_handler
353 # PARAMETERS: signal - string - signal arose from system
354 # RETURNS: noting
355 # DESCRIPTION: handels tasks to be done befor signal becomes active
356 #===============================================================================
357 sub sig_int_handler {
358 my ($signal) = @_;
360 daemon_log("shutting down gosa-si-server", 1);
361 exit(1);
362 }
363 $SIG{INT} = \&sig_int_handler;
367 sub check_key_and_xml_validity {
368 my ($crypted_msg, $module_key) = @_;
369 my $msg;
370 my $msg_hash;
371 my $error_string;
372 eval{
373 $msg = &decrypt_msg($crypted_msg, $module_key);
375 if ($msg =~ /<xml>/i){
376 &main::daemon_log("decrypted_msg: \n$msg", 8);
377 $msg_hash = $xml->XMLin($msg, ForceArray=>1);
379 ##############
380 # check header
381 if( not exists $msg_hash->{'header'} ) { die "no header specified"; }
382 my $header_l = $msg_hash->{'header'};
383 if( 1 > @{$header_l} ) { die 'empty header tag'; }
384 if( 1 < @{$header_l} ) { die 'more than one header specified'; }
385 my $header = @{$header_l}[0];
386 if( 0 == length $header) { die 'empty string in header tag'; }
388 ##############
389 # check source
390 if( not exists $msg_hash->{'source'} ) { die "no source specified"; }
391 my $source_l = $msg_hash->{'source'};
392 if( 1 > @{$source_l} ) { die 'empty source tag'; }
393 if( 1 < @{$source_l} ) { die 'more than one source specified'; }
394 my $source = @{$source_l}[0];
395 if( 0 == length $source) { die 'source error'; }
397 ##############
398 # check target
399 if( not exists $msg_hash->{'target'} ) { die "no target specified"; }
400 my $target_l = $msg_hash->{'target'};
401 if( 1 > @{$target_l} ) { die 'empty target tag'; }
402 }
403 };
404 if($@) {
405 &main::daemon_log("WARNING: do not understand the message", 5);
406 &main::daemon_log("$@", 8);
407 $msg = undef;
408 $msg_hash = undef;
409 }
411 return ($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 =~ /JOBDB/i ||
463 $target =~ /^([0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2})$/i ){
464 die "target '$target' is not a complete ip-address with port or a valid target name or a mac-address";
465 }
466 }
467 };
468 if($@) {
469 daemon_log("WARNING: outgoing msg is not gosa-si envelope conform", 5);
470 daemon_log("$@ ".(defined($msg) && length($msg)>0)?$msg:"Empty Message", 8);
471 $msg_hash = undef;
472 }
474 return ($msg_hash);
475 }
478 sub input_from_known_server {
479 my ($input, $remote_ip) = @_ ;
480 my ($msg, $msg_hash, $module);
482 my $sql_statement= "SELECT * FROM known_server";
483 my $query_res = $known_server_db->select_dbentry( $sql_statement );
485 while( my ($hit_num, $hit) = each %{ $query_res } ) {
486 my $host_name = $hit->{hostname};
487 if( not $host_name =~ "^$remote_ip") {
488 next;
489 }
490 my $host_key = $hit->{hostkey};
491 daemon_log("DEBUG: input_from_known_server: host_name: $host_name", 7);
492 daemon_log("DEBUG: input_from_known_server: host_key: $host_key", 7);
494 # check if module can open msg envelope with module key
495 my ($tmp_msg, $tmp_msg_hash) = &check_key_and_xml_validity($input, $host_key);
496 if( (!$tmp_msg) || (!$tmp_msg_hash) ) {
497 daemon_log("DEBUG: input_from_known_server: deciphering raise error", 7);
498 daemon_log("$@", 8);
499 next;
500 }
501 else {
502 $msg = $tmp_msg;
503 $msg_hash = $tmp_msg_hash;
504 $module = "SIPackages";
505 last;
506 }
507 }
509 if( (!$msg) || (!$msg_hash) || (!$module) ) {
510 daemon_log("INFO: Incoming message is not from a known server", 5);
511 }
513 return ($msg, $msg_hash, $module);
514 }
517 sub input_from_known_client {
518 my ($input, $remote_ip) = @_ ;
519 my ($msg, $msg_hash, $module);
521 my $sql_statement= "SELECT * FROM known_clients";
522 my $query_res = $known_clients_db->select_dbentry( $sql_statement );
523 while( my ($hit_num, $hit) = each %{ $query_res } ) {
524 my $host_name = $hit->{hostname};
525 if( not $host_name =~ /^$remote_ip:\d*$/) {
526 next;
527 }
528 my $host_key = $hit->{hostkey};
529 &daemon_log("DEBUG: input_from_known_client: host_name: $host_name", 7);
530 &daemon_log("DEBUG: input_from_known_client: host_key: $host_key", 7);
532 # check if module can open msg envelope with module key
533 ($msg, $msg_hash) = &check_key_and_xml_validity($input, $host_key);
535 if( (!$msg) || (!$msg_hash) ) {
536 &daemon_log("DEGUG: input_from_known_client: deciphering raise error", 7);
537 &daemon_log("$@", 8);
538 next;
539 }
540 else {
541 $module = "SIPackages";
542 last;
543 }
544 }
546 if( (!$msg) || (!$msg_hash) || (!$module) ) {
547 &daemon_log("INFO: Incoming message is not from a known client", 5);
548 }
550 return ($msg, $msg_hash, $module);
551 }
554 sub input_from_unknown_host {
555 no strict "refs";
556 my ($input) = @_ ;
557 my ($msg, $msg_hash, $module);
558 my $error_string;
560 my %act_modules = %$known_modules;
562 while( my ($mod, $info) = each(%act_modules)) {
564 # check a key exists for this module
565 my $module_key = ${$mod."_key"};
566 if( not defined $module_key ) {
567 if( $mod eq 'ArpHandler' ) {
568 next;
569 }
570 daemon_log("ERROR: no key specified in config file for $mod", 1);
571 next;
572 }
573 daemon_log("DEBUG: $mod: $module_key", 7);
575 # check if module can open msg envelope with module key
576 ($msg, $msg_hash) = &check_key_and_xml_validity($input, $module_key);
577 if( (not defined $msg) || (not defined $msg_hash) ) {
578 next;
579 }
580 else {
581 $module = $mod;
582 last;
583 }
584 }
586 if( (!$msg) || (!$msg_hash) || (!$module)) {
587 daemon_log("INFO: Incoming message is not from an unknown host", 5);
588 }
590 return ($msg, $msg_hash, $module);
591 }
594 sub create_ciphering {
595 my ($passwd) = @_;
596 if((!defined($passwd)) || length($passwd)==0) {
597 $passwd = "";
598 }
599 $passwd = substr(md5_hex("$passwd") x 32, 0, 32);
600 my $iv = substr(md5_hex('GONICUS GmbH'),0, 16);
601 my $my_cipher = Crypt::Rijndael->new($passwd , Crypt::Rijndael::MODE_CBC());
602 $my_cipher->set_iv($iv);
603 return $my_cipher;
604 }
607 sub encrypt_msg {
608 my ($msg, $key) = @_;
609 my $my_cipher = &create_ciphering($key);
610 my $len;
611 {
612 use bytes;
613 $len= 16-length($msg)%16;
614 }
615 $msg = "\0"x($len).$msg;
616 $msg = $my_cipher->encrypt($msg);
617 chomp($msg = &encode_base64($msg));
618 # there are no newlines allowed inside msg
619 $msg=~ s/\n//g;
620 return $msg;
621 }
624 sub decrypt_msg {
626 my ($msg, $key) = @_ ;
627 $msg = &decode_base64($msg);
628 my $my_cipher = &create_ciphering($key);
629 $msg = $my_cipher->decrypt($msg);
630 $msg =~ s/\0*//g;
631 return $msg;
632 }
635 sub get_encrypt_key {
636 my ($target) = @_ ;
637 my $encrypt_key;
638 my $error = 0;
640 # target can be in known_server
641 if( not defined $encrypt_key ) {
642 my $sql_statement= "SELECT * FROM known_server WHERE hostname='$target'";
643 my $query_res = $known_server_db->select_dbentry( $sql_statement );
644 while( my ($hit_num, $hit) = each %{ $query_res } ) {
645 my $host_name = $hit->{hostname};
646 if( $host_name ne $target ) {
647 next;
648 }
649 $encrypt_key = $hit->{hostkey};
650 last;
651 }
652 }
654 # target can be in known_client
655 if( not defined $encrypt_key ) {
656 my $sql_statement= "SELECT * FROM known_clients WHERE hostname='$target'";
657 my $query_res = $known_clients_db->select_dbentry( $sql_statement );
658 while( my ($hit_num, $hit) = each %{ $query_res } ) {
659 my $host_name = $hit->{hostname};
660 if( $host_name ne $target ) {
661 next;
662 }
663 $encrypt_key = $hit->{hostkey};
664 last;
665 }
666 }
668 return $encrypt_key;
669 }
672 #=== FUNCTION ================================================================
673 # NAME: open_socket
674 # PARAMETERS: PeerAddr string something like 192.168.1.1 or 192.168.1.1:10000
675 # [PeerPort] string necessary if port not appended by PeerAddr
676 # RETURNS: socket IO::Socket::INET
677 # DESCRIPTION: open a socket to PeerAddr
678 #===============================================================================
679 sub open_socket {
680 my ($PeerAddr, $PeerPort) = @_ ;
681 if(defined($PeerPort)){
682 $PeerAddr = $PeerAddr.":".$PeerPort;
683 }
684 my $socket;
685 $socket = new IO::Socket::INET(PeerAddr => $PeerAddr,
686 Porto => "tcp",
687 Type => SOCK_STREAM,
688 Timeout => 5,
689 );
690 if(not defined $socket) {
691 return;
692 }
693 # &daemon_log("DEBUG: open_socket: $PeerAddr", 7);
694 return $socket;
695 }
698 #=== FUNCTION ================================================================
699 # NAME: get_ip
700 # PARAMETERS: interface name (i.e. eth0)
701 # RETURNS: (ip address)
702 # DESCRIPTION: Uses ioctl to get ip address directly from system.
703 #===============================================================================
704 sub get_ip {
705 my $ifreq= shift;
706 my $result= "";
707 my $SIOCGIFADDR= 0x8915; # man 2 ioctl_list
708 my $proto= getprotobyname('ip');
710 socket SOCKET, PF_INET, SOCK_DGRAM, $proto
711 or die "socket: $!";
713 if(ioctl SOCKET, $SIOCGIFADDR, $ifreq) {
714 my ($if, $sin) = unpack 'a16 a16', $ifreq;
715 my ($port, $addr) = sockaddr_in $sin;
716 my $ip = inet_ntoa $addr;
718 if ($ip && length($ip) > 0) {
719 $result = $ip;
720 }
721 }
723 return $result;
724 }
726 sub get_local_ip_for_remote_ip {
727 my $remote_ip= shift;
728 my $result="0.0.0.0";
730 if($remote_ip =~ /^(\d\d?\d?\.){3}\d\d?\d?$/) {
731 if($remote_ip eq "127.0.0.1") {
732 $result = "127.0.0.1";
733 } else {
734 my $PROC_NET_ROUTE= ('/proc/net/route');
736 open(PROC_NET_ROUTE, "<$PROC_NET_ROUTE")
737 or die "Could not open $PROC_NET_ROUTE";
739 my @ifs = <PROC_NET_ROUTE>;
741 close(PROC_NET_ROUTE);
743 # Eat header line
744 shift @ifs;
745 chomp @ifs;
746 foreach my $line(@ifs) {
747 my ($Iface,$Destination,$Gateway,$Flags,$RefCnt,$Use,$Metric,$Mask,$MTU,$Window,$IRTT)=split(/\s/, $line);
748 my $destination;
749 my $mask;
750 my ($d,$c,$b,$a)=unpack('a2 a2 a2 a2', $Destination);
751 $destination= sprintf("%d.%d.%d.%d", hex($a), hex($b), hex($c), hex($d));
752 ($d,$c,$b,$a)=unpack('a2 a2 a2 a2', $Mask);
753 $mask= sprintf("%d.%d.%d.%d", hex($a), hex($b), hex($c), hex($d));
754 if(new NetAddr::IP($remote_ip)->within(new NetAddr::IP($destination, $mask))) {
755 # destination matches route, save mac and exit
756 $result= &get_ip($Iface);
757 last;
758 }
759 }
760 }
761 } else {
762 daemon_log("get_local_ip_for_remote_ip was called with a non-ip parameter: $remote_ip", 1);
763 }
764 return $result;
765 }
767 sub send_msg_to_target {
768 my ($msg, $address, $encrypt_key, $msg_header) = @_ ;
769 my $error = 0;
770 my $header;
771 my $new_status;
772 my $act_status;
773 my ($sql_statement, $res);
775 if( $msg_header ) {
776 $header = "'$msg_header'-";
777 }
778 else {
779 $header = "";
780 }
782 # Patch the source ip
783 if($msg =~ /<source>0\.0\.0\.0:\d*?<\/source>/) {
784 my $remote_ip = &get_local_ip_for_remote_ip(sprintf("%s", $address =~ /^([0-9\.]*?):.*$/));
785 $msg =~ s/<source>(0\.0\.0\.0):(\d*?)<\/source>/<source>$remote_ip:$2<\/source>/s;
786 }
788 # encrypt xml msg
789 my $crypted_msg = &encrypt_msg($msg, $encrypt_key);
791 # opensocket
792 my $socket = &open_socket($address);
793 if( !$socket ) {
794 daemon_log("ERROR: cannot send ".$header."msg to $address , host not reachable", 1);
795 $error++;
796 }
798 if( $error == 0 ) {
799 # send xml msg
800 print $socket $crypted_msg."\n";
802 daemon_log("INFO: send ".$header."msg to $address", 5);
803 daemon_log("message:\n$msg", 8);
805 }
807 # close socket in any case
808 if( $socket ) {
809 close $socket;
810 }
812 if( $error > 0 ) { $new_status = "down"; }
813 else { $new_status = $msg_header; }
816 # known_clients
817 $sql_statement = "SELECT * FROM known_clients WHERE hostname='$address'";
818 $res = $known_clients_db->select_dbentry($sql_statement);
819 if( keys(%$res) > 0) {
820 $act_status = $res->{1}->{'status'};
821 if( $act_status eq "down" ) {
822 $sql_statement = "DELETE FROM known_clients WHERE hostname='$address'";
823 $res = $known_clients_db->del_dbentry($sql_statement);
824 daemon_log("WARNING: failed 2x to send msg to host '$address', delete host from known_clients", 3);
825 }
826 else {
827 $sql_statement = "UPDATE known_clients SET status='$new_status' WHERE hostname='$address'";
828 $res = $known_clients_db->update_dbentry($sql_statement);
829 if($new_status eq "down"){
830 daemon_log("WARNING: set '$address' from status '$act_status' to '$new_status'", 3);
831 }
832 else {
833 daemon_log("INFO: set '$address' from status '$act_status' to '$new_status'", 5);
834 }
835 }
836 }
838 # known_server
839 $sql_statement = "SELECT * FROM known_server WHERE hostname='$address'";
840 $res = $known_server_db->select_dbentry($sql_statement);
841 if( keys(%$res) > 0 ) {
842 $act_status = $res->{1}->{'status'};
843 if( $act_status eq "down" ) {
844 $sql_statement = "DELETE FROM known_server WHERE hostname='$address'";
845 $res = $known_server_db->del_dbentry($sql_statement);
846 daemon_log("WARNING: failed 2x to a send msg to host '$address', delete host from known_server", 3);
847 }
848 else {
849 $sql_statement = "UPDATE known_server SET status='$new_status' WHERE hostname='$address'";
850 $res = $known_server_db->update_dbentry($sql_statement);
851 if($new_status eq "down"){
852 daemon_log("WARNING: set '$address' from status '$act_status' to '$new_status'", 3);
853 }
854 else {
855 daemon_log("INFO: set '$address' from status '$act_status' to '$new_status'", 5);
856 }
857 }
858 }
859 return $error;
860 }
863 sub _start {
864 my ($kernel) = $_[KERNEL];
865 &trigger_db_loop($kernel);
866 }
869 sub client_input {
870 no strict "refs";
871 my ($kernel, $session, $heap,$input,$wheel) = @_[KERNEL, SESSION, HEAP, ARG0, ARG1];
872 my $session_id = $session->ID;
873 my ($msg, $msg_hash, $module);
874 my $error = 0;
875 my $answer_l;
876 my ($answer_header, @answer_target_l, $answer_source);
877 my $client_answer;
879 daemon_log("INFO: Incoming msg from '".$heap->{'remote_ip'}."'", 5);
880 daemon_log("DEBUG: Incoming message:\n$input", 8);
882 ####################
883 # check incoming msg
884 # msg is from a new client or gosa
885 ($msg, $msg_hash, $module) = &input_from_unknown_host($input);
886 # msg is from a gosa-si-server or gosa-si-bus
887 if(( !$msg ) || ( !$msg_hash ) || ( !$module )){
888 ($msg, $msg_hash, $module) = &input_from_known_server($input, $heap->{'remote_ip'});
889 }
890 # msg is from a gosa-si-client
891 if(( !$msg ) || ( !$msg_hash ) || ( !$module )){
892 ($msg, $msg_hash, $module) = &input_from_known_client($input, $heap->{'remote_ip'});
893 }
894 # an error occurred
895 if(( !$msg ) || ( !$msg_hash ) || ( !$module )){
896 $error++;
897 }
899 ######################
900 # process incoming msg
901 if( $error == 0) {
902 daemon_log("DEBUG: Processing module ".$module, 7);
903 $answer_l = &{ $module."::process_incoming_msg" }($msg, $msg_hash, $session_id);
905 if ( 0 > @{$answer_l} ) {
906 my $answer_str = join("\n", @{$answer_l});
907 daemon_log("DEGUB: $module: Got answer from module: \n".$answer_str,8);
908 }
909 }
910 if( !$answer_l ) { $error++ };
912 ########
913 # answer
914 if( $error == 0 ) {
916 foreach my $answer ( @{$answer_l} ) {
917 # for each answer in answer list
919 # check outgoing msg to xml validity
920 my $answer_hash = &check_outgoing_xml_validity($answer);
921 if( not defined $answer_hash ) {
922 next;
923 }
925 $answer_header = @{$answer_hash->{'header'}}[0];
926 @answer_target_l = @{$answer_hash->{'target'}};
927 $answer_source = @{$answer_hash->{'source'}}[0];
929 # deliver msg to all targets
930 foreach my $answer_target ( @answer_target_l ) {
932 # targets of msg are all gosa-si-clients in known_clients_db
933 if( $answer_target eq "*" ) {
934 # answer is for all clients
935 my $sql_statement= "SELECT * FROM known_clients";
936 my $query_res = $known_clients_db->select_dbentry( $sql_statement );
937 while( my ($hit_num, $hit) = each %{ $query_res } ) {
938 my $host_name = $hit->{hostname};
939 my $host_key = $hit->{hostkey};
940 &send_msg_to_target($answer, $host_name, $host_key, $answer_header);
941 }
942 }
944 # targets of msg are all gosa-si-server in known_server_db
945 elsif( $answer_target eq "KNOWN_SERVER" ) {
946 # answer is for all server in known_server
947 my $sql_statement= "SELECT * FROM known_server";
948 my $query_res = $known_server_db->select_dbentry( $sql_statement );
949 while( my ($hit_num, $hit) = each %{ $query_res } ) {
950 my $host_name = $hit->{hostname};
951 my $host_key = $hit->{hostkey};
952 $answer =~ s/KNOWN_SERVER/$host_name/g;
953 &send_msg_to_target($answer, $host_name, $host_key, $answer_header);
954 }
955 }
957 # target of msg is GOsa
958 elsif( $answer_target eq "GOSA" ) {
959 $answer =~ /<session_id>(\d+)<\/session_id>/;
960 my $session_id = $1;
961 my $add_on = "";
962 if( defined $session_id ) {
963 $add_on = ".session_id=$session_id";
964 }
965 # answer is for GOSA and has to returned to connected client
966 my $gosa_answer = &encrypt_msg($answer, $GosaPackages_key);
967 $client_answer = $gosa_answer.$add_on;
968 }
970 # target of msg is job queue at this host
971 elsif( $answer_target eq "JOBDB") {
972 $answer =~ /<header>(\S+)<\/header>/;
973 my $header;
974 if( defined $1 ) { $header = $1; }
975 &send_msg_to_target($answer, $server_address, $GosaPackages_key, $header);
976 }
978 # target of msg is a mac address
979 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 ) {
980 daemon_log("target is mac address '$answer_target', looking for host in known_clients", 3);
981 my $sql_statement = "SELECT * FROM known_clients WHERE macaddress='$answer_target'";
982 my $query_res = $known_clients_db->select_dbentry( $sql_statement );
983 my $found_ip_flag = 0;
984 while( my ($hit_num, $hit) = each %{ $query_res } ) {
985 my $host_name = $hit->{hostname};
986 my $host_key = $hit->{hostkey};
987 $answer =~ s/$answer_target/$host_name/g;
988 daemon_log("found host '$host_name', associated to '$answer_target'", 3);
989 &send_msg_to_target($answer, $host_name, $host_key, $answer_header);
990 $found_ip_flag++ ;
991 }
992 if( $found_ip_flag == 0) {
993 daemon_log("WARNING: no host found in known_clients with mac address '$answer_target'", 3);
994 if( $bus_activ eq "true" ) {
995 daemon_log("INFO: try to forward msg '$answer_header' to bus '$bus_address'", 5);
996 my $sql_statement = "SELECT * FROM known_server WHERE hostname='$bus_address'";
997 my $query_res = $known_server_db->select_dbentry( $sql_statement );
998 while( my ($hit_num, $hit) = each %{ $query_res } ) {
999 my $bus_address = $hit->{hostname};
1000 my $bus_key = $hit->{hostkey};
1001 &send_msg_to_target($answer, $bus_address, $bus_key, $answer_header);
1002 last;
1003 }
1004 }
1006 }
1008 # answer is for one specific host
1009 } else {
1010 # get encrypt_key
1011 my $encrypt_key = &get_encrypt_key($answer_target);
1012 if( not defined $encrypt_key ) {
1013 # unknown target, forward msg to bus
1014 daemon_log("WARNING: unknown target '$answer_target'", 3);
1015 if( $bus_activ eq "true" ) {
1016 daemon_log("INFO: try to forward msg '$answer_header' to bus '$bus_address'", 5);
1017 my $sql_statement = "SELECT * FROM known_server WHERE hostname='$bus_address'";
1018 my $query_res = $known_server_db->select_dbentry( $sql_statement );
1019 my $res_length = keys( %{$query_res} );
1020 if( $res_length == 0 ){
1021 daemon_log("WARNING: send '$answer_header' to '$bus_address' failed, no bus found in known_server", 3);
1022 }
1023 else {
1024 while( my ($hit_num, $hit) = each %{ $query_res } ) {
1025 my $bus_key = $hit->{hostkey};
1026 &send_msg_to_target($answer, $bus_address, $bus_key, $answer_header);
1027 }
1028 }
1029 }
1030 next;
1031 }
1032 # send_msg
1033 &send_msg_to_target($answer, $answer_target, $encrypt_key, $answer_header);
1034 }
1035 }
1036 }
1037 }
1039 if( $client_answer ) {
1040 if( $client_answer =~ s/session_id=(\d+)$// ) {
1041 my $session_id = $1;
1042 if( defined $session_id ) {
1043 my $session_reference = $kernel->ID_id_to_session($session_id);
1044 $heap = $session_reference->get_heap();
1045 }
1046 }
1047 $heap->{client}->put($client_answer);
1048 }
1050 return;
1051 }
1055 sub trigger_db_loop {
1056 # my ($kernel) = $_[KERNEL];
1057 my ($kernel) = @_ ;
1058 $kernel->delay_set('watch_for_new_jobs', $job_queue_loop_delay);
1059 }
1062 sub watch_for_new_jobs {
1063 my ($kernel,$heap) = @_[KERNEL, HEAP];
1065 # check gosa job queue for jobs with executable timestamp
1066 my $timestamp = &get_time();
1067 my $sql_statement = "SELECT * FROM ".$job_queue_tn.
1068 " WHERE status='waiting' AND timestamp<'$timestamp'";
1069 my $res = $job_db->select_dbentry( $sql_statement );
1071 while( my ($id, $hit) = each %{$res} ) {
1072 my $jobdb_id = $hit->{id};
1073 my $macaddress = $hit->{'macaddress'};
1074 my $job_msg = $hit->{'xmlmessage'};
1075 my $header = $hit->{'headertag'};
1076 my $sql_statement = "SELECT * FROM known_clients WHERE macaddress='$macaddress'";
1077 my $res_hash = $known_clients_db->select_dbentry( $sql_statement );
1078 # expect macaddress is unique!!!!!!
1079 my $target = $res_hash->{1}->{hostname};
1081 if (not defined $target) {
1082 &daemon_log("ERROR: no host found for mac address: $macaddress", 1);
1083 &daemon_log("$hit->{xmlmessage}", 8);
1084 my $sql_statement = "UPDATE $job_queue_tn ".
1085 "SET status='error', result='no host found for mac address' ".
1086 "WHERE id='$jobdb_id'";
1087 my $res = $job_db->update_dbentry($sql_statement);
1088 next;
1089 }
1091 # change header
1092 $job_msg =~ s/<header>job_/<header>gosa_/;
1094 # add sqlite_id
1095 $job_msg =~ s/<\/xml>$/<jobdb_id>$jobdb_id<\/jobdb_id><\/xml>/;
1097 my $func_error = &send_msg_to_target($job_msg, $server_address, $GosaPackages_key, $header);
1098 }
1100 $kernel->delay_set('watch_for_new_jobs',3);
1101 }
1104 #==== MAIN = main ==============================================================
1105 # parse commandline options
1106 Getopt::Long::Configure( "bundling" );
1107 GetOptions("h|help" => \&usage,
1108 "c|config=s" => \$cfg_file,
1109 "f|foreground" => \$foreground,
1110 "v|verbose+" => \$verbose,
1111 "no-bus+" => \$no_bus,
1112 "no-arp+" => \$no_arp,
1113 );
1115 # read and set config parameters
1116 &check_cmdline_param ;
1117 &read_configfile;
1118 &check_pid;
1120 $SIG{CHLD} = 'IGNORE';
1122 # forward error messages to logfile
1123 if( ! $foreground ) {
1124 open(STDERR, '>>', $log_file);
1125 open(STDOUT, '>>', $log_file);
1126 }
1128 # Just fork, if we are not in foreground mode
1129 if( ! $foreground ) {
1130 chdir '/' or die "Can't chdir to /: $!";
1131 $pid = fork;
1132 setsid or die "Can't start a new session: $!";
1133 umask 0;
1134 } else {
1135 $pid = $$;
1136 }
1138 # Do something useful - put our PID into the pid_file
1139 if( 0 != $pid ) {
1140 open( LOCK_FILE, ">$pid_file" );
1141 print LOCK_FILE "$pid\n";
1142 close( LOCK_FILE );
1143 if( !$foreground ) {
1144 exit( 0 )
1145 };
1146 }
1148 daemon_log(" ", 1);
1149 daemon_log("$0 started!", 1);
1151 if ($no_bus > 0) {
1152 $bus_activ = "false"
1153 }
1157 # delete old DBsqlite lock files
1158 #unlink('/tmp/gosa_si_lock*');
1160 # connect to gosa-si job queue
1161 my @job_col_names = ("id INTEGER", "timestamp", "status", "result", "progress INTEGER", "headertag", "targettag", "xmlmessage", "macaddress");
1162 $job_db = GOSA::DBsqlite->new($job_queue_file_name);
1163 $job_db->create_table('jobs', \@job_col_names);
1165 # connect to known_clients_db
1166 my @clients_col_names = ('hostname', 'status', 'hostkey', 'timestamp', 'macaddress', 'events');
1167 $known_clients_db = GOSA::DBsqlite->new($known_clients_file_name);
1168 $known_clients_db->create_table('known_clients', \@clients_col_names);
1170 # connect to known_server_db
1171 my @server_col_names = ('hostname', 'status', 'hostkey', 'timestamp');
1172 $known_server_db = GOSA::DBsqlite->new($known_server_file_name);
1173 $known_server_db->create_table('known_server', \@server_col_names);
1175 # connect to login_usr_db
1176 my @login_users_col_names = ('client', 'user', 'timestamp');
1177 $login_users_db = GOSA::DBsqlite->new($login_users_file_name);
1178 $login_users_db->create_table("login_users", \@login_users_col_names);
1180 # create xml object used for en/decrypting
1181 $xml = new XML::Simple();
1183 # create socket for incoming xml messages
1184 POE::Component::Server::TCP->new(
1185 Port => $server_port,
1186 ClientInput => \&client_input,
1187 );
1188 daemon_log("start socket for incoming xml messages at port '$server_port' ", 1);
1190 # create session for repeatedly checking the job queue for jobs
1191 POE::Session->create(
1192 inline_states => {
1193 _start => \&_start,
1194 watch_for_new_jobs => \&watch_for_new_jobs,
1195 }
1196 );
1199 # import all modules
1200 &import_modules;
1202 # check wether all modules are gosa-si valid passwd check
1204 POE::Kernel->run();
1205 exit;