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 # libipc-shareable-perl libdata-dumper-simple-perl
13 # libdbd-sqlite3-perl libnet-ldap-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 #===============================================================================
24 use strict;
25 use warnings;
26 use Getopt::Long;
27 use Config::IniFiles;
28 use POSIX;
29 use Time::HiRes qw( gettimeofday );
31 use Fcntl;
32 use IO::Socket::INET;
33 use Crypt::Rijndael;
34 use MIME::Base64;
35 use Digest::MD5 qw(md5 md5_hex md5_base64);
36 use XML::Simple;
37 use Data::Dumper;
38 use Sys::Syslog qw( :DEFAULT setlogsock);
39 use Cwd;
40 use File::Spec;
41 use IPC::Shareable qw( :lock);
42 IPC::Shareable->clean_up_all;
43 use GOSA::GosaSupportDaemon;
44 use GOSA::DBsqlite;
46 my $modules_path = "/usr/lib/gosa-si/modules";
47 use lib "/usr/lib/gosa-si/modules";
49 my (%cfg_defaults, $foreground, $verbose, $ping_timeout);
50 my ($bus, $msg_to_bus, $bus_cipher);
51 my ($server, $server_mac_address, $server_events);
52 my ($gosa_server, $job_queue_timeout, $job_queue_table_name, $job_queue_file_name);
53 my ($known_modules, $known_clients_file_name, $known_server_file_name);
54 my ($max_clients);
55 my ($pid_file, $procid, $pid, $log_file);
56 my (%free_child, %busy_child, $child_max, $child_min, %child_alive_time, $child_timeout);
57 my ($arp_activ, $arp_fifo, $arp_fifo_path);
59 # variables declared in config file are always set to 'our'
60 our (%cfg_defaults, $log_file, $pid_file,
61 $bus_activ, $bus_passwd, $bus_ip, $bus_port,
62 $server_activ, $server_ip, $server_port, $server_passwd, $max_clients,
63 $arp_activ, $arp_fifo_path,
64 $gosa_activ, $gosa_passwd, $gosa_ip, $gosa_port, $gosa_timeout,
65 );
67 # additional variable which should be globaly accessable
68 our $xml;
69 our $server_address;
70 our $bus_address;
71 our $gosa_address;
72 our $no_bus;
73 our $no_arp;
74 our $verbose;
75 our $forground;
76 our $cfg_file;
78 # specifies the verbosity of the daemon_log
79 $verbose = 0 ;
81 # if foreground is not null, script will be not forked to background
82 $foreground = 0 ;
84 # specifies the timeout seconds while checking the online status of a registrating client
85 $ping_timeout = 5;
87 $no_bus = 0;
89 $no_arp = 0;
91 # name of table for storing gosa jobs
92 our $job_queue_table_name = 'jobs';
93 our $job_db;
95 # holds all other gosa-sd as well as the gosa-sd-bus
96 our $known_server_db;
98 # holds all registrated clients
99 our $known_clients_db;
101 %cfg_defaults =
102 ("general" =>
103 {"log_file" => [\$log_file, "/var/run/".$0.".log"],
104 "pid_file" => [\$pid_file, "/var/run/".$0.".pid"],
105 "child_max" => [\$child_max, 10],
106 "child_min" => [\$child_min, 3],
107 "child_timeout" => [\$child_timeout, 180],
108 "job_queue_timeout" => [\$job_queue_timeout, undef],
109 "job_queue_file_name" => [\$job_queue_file_name, '/var/lib/gosa-si/jobs.db'],
110 "known_clients_file_name" => [\$known_clients_file_name, '/var/lib/gosa-si/known_clients.db' ],
111 "known_server_file_name" => [\$known_server_file_name, '/var/lib/gosa-si/known_server.db'],
112 },
113 "bus" =>
114 {"bus_activ" => [\$bus_activ, "on"],
115 "bus_passwd" => [\$bus_passwd, ""],
116 "bus_ip" => [\$bus_ip, ""],
117 "bus_port" => [\$bus_port, "20080"],
118 },
119 "server" =>
120 {"server_activ" => [\$server_activ, "on"],
121 "server_ip" => [\$server_ip, "0.0.0.0"],
122 "server_port" => [\$server_port, "20081"],
123 "server_passwd" => [\$server_passwd, ""],
124 "max_clients" => [\$max_clients, 100],
125 },
126 "arp" =>
127 {"arp_activ" => [\$arp_activ, "on"],
128 "arp_fifo_path" => [\$arp_fifo_path, "/var/run/gosa-si/arp-notify"],
129 },
130 "gosa" =>
131 {"gosa_activ" => [\$gosa_activ, "on"],
132 "gosa_ip" => [\$gosa_ip, ""],
133 "gosa_port" => [\$gosa_port, "20082"],
134 "gosa_passwd" => [\$gosa_passwd, "none"],
135 },
136 );
139 #=== FUNCTION ================================================================
140 # NAME: usage
141 # PARAMETERS: nothing
142 # RETURNS: nothing
143 # DESCRIPTION: print out usage text to STDERR
144 #===============================================================================
145 sub usage {
146 print STDERR << "EOF" ;
147 usage: $0 [-hvf] [-c config]
149 -h : this (help) message
150 -c <file> : config file
151 -f : foreground, process will not be forked to background
152 -v : be verbose (multiple to increase verbosity)
153 -no-bus : starts $0 without connection to bus
154 -no-arp : starts $0 without connection to arp module
156 EOF
157 print "\n" ;
158 }
161 #=== FUNCTION ================================================================
162 # NAME: read_configfile
163 # PARAMETERS: cfg_file - string -
164 # RETURNS: nothing
165 # DESCRIPTION: read cfg_file and set variables
166 #===============================================================================
167 sub read_configfile {
168 my $cfg;
169 if( defined( $cfg_file) && ( length($cfg_file) > 0 )) {
170 if( -r $cfg_file ) {
171 $cfg = Config::IniFiles->new( -file => $cfg_file );
172 } else {
173 print STDERR "Couldn't read config file!";
174 }
175 } else {
176 $cfg = Config::IniFiles->new() ;
177 }
178 foreach my $section (keys %cfg_defaults) {
179 foreach my $param (keys %{$cfg_defaults{ $section }}) {
180 my $pinfo = $cfg_defaults{ $section }{ $param };
181 ${@$pinfo[ 0 ]} = $cfg->val( $section, $param, @$pinfo[ 1 ] );
182 }
183 }
184 }
187 #=== FUNCTION ================================================================
188 # NAME: logging
189 # PARAMETERS: level - string - default 'info'
190 # msg - string -
191 # facility - string - default 'LOG_DAEMON'
192 # RETURNS: nothing
193 # DESCRIPTION: function for logging
194 #===============================================================================
195 sub daemon_log {
196 # log into log_file
197 my( $msg, $level ) = @_;
198 if(not defined $msg) { return }
199 if(not defined $level) { $level = 1 }
200 if(defined $log_file){
201 open(LOG_HANDLE, ">>$log_file");
202 if(not defined open( LOG_HANDLE, ">>$log_file" )) {
203 print STDERR "cannot open $log_file: $!";
204 return }
205 chomp($msg);
206 if($level <= $verbose){
207 print LOG_HANDLE "$level $msg\n";
208 if($foreground) { print $msg."\n" }
209 }
210 }
211 # close( LOG_HANDLE );
212 #log into syslog
213 # my ($msg, $level, $facility) = @_;
214 # if(not defined $msg) {return}
215 # if(not defined $level) {$level = "info"}
216 # if(not defined $facility) {$facility = "LOG_DAEMON"}
217 # openlog($0, "pid,cons,", $facility);
218 # syslog($level, $msg);
219 # closelog;
220 # return;
221 }
224 #=== FUNCTION ================================================================
225 # NAME: check_cmdline_param
226 # PARAMETERS: nothing
227 # RETURNS: nothing
228 # DESCRIPTION: validates commandline parameter
229 #===============================================================================
230 sub check_cmdline_param () {
231 my $err_config;
232 my $err_counter = 0;
233 if( not defined( $cfg_file)) {
234 #$err_config = "please specify a config file";
235 #$err_counter += 1;
236 my $cwd = getcwd;
237 my $name = "/etc/gosa-si/server.conf";
238 $cfg_file = File::Spec->catfile( $cwd, $name );
239 }
240 if( $err_counter > 0 ) {
241 &usage( "", 1 );
242 if( defined( $err_config)) { print STDERR "$err_config\n"}
243 print STDERR "\n";
244 exit( -1 );
245 }
246 }
249 #=== FUNCTION ================================================================
250 # NAME: check_pid
251 # PARAMETERS: nothing
252 # RETURNS: nothing
253 # DESCRIPTION: handels pid processing
254 #===============================================================================
255 sub check_pid {
256 $pid = -1;
257 # Check, if we are already running
258 if( open(LOCK_FILE, "<$pid_file") ) {
259 $pid = <LOCK_FILE>;
260 if( defined $pid ) {
261 chomp( $pid );
262 if( -f "/proc/$pid/stat" ) {
263 my($stat) = `cat /proc/$pid/stat` =~ m/$pid \((.+)\).*/;
264 if( $0 eq $stat ) {
265 close( LOCK_FILE );
266 exit -1;
267 }
268 }
269 }
270 close( LOCK_FILE );
271 unlink( $pid_file );
272 }
274 # create a syslog msg if it is not to possible to open PID file
275 if (not sysopen(LOCK_FILE, $pid_file, O_WRONLY|O_CREAT|O_EXCL, 0644)) {
276 my($msg) = "Couldn't obtain lockfile '$pid_file' ";
277 if (open(LOCK_FILE, '<', $pid_file)
278 && ($pid = <LOCK_FILE>))
279 {
280 chomp($pid);
281 $msg .= "(PID $pid)\n";
282 } else {
283 $msg .= "(unable to read PID)\n";
284 }
285 if( ! ($foreground) ) {
286 openlog( $0, "cons,pid", "daemon" );
287 syslog( "warning", $msg );
288 closelog();
289 }
290 else {
291 print( STDERR " $msg " );
292 }
293 exit( -1 );
294 }
295 }
297 #=== FUNCTION ================================================================
298 # NAME: import_modules
299 # PARAMETERS: module_path - string - abs. path to the directory the modules
300 # are stored
301 # RETURNS: nothing
302 # DESCRIPTION: each file in module_path which ends with '.pm' is imported by
303 # "require 'file';"
304 #===============================================================================
305 sub import_modules {
306 daemon_log(" ", 1);
308 if (not -e $modules_path) {
309 daemon_log("ERROR: cannot find directory or directory is not readable: $modules_path", 1);
310 }
312 opendir (DIR, $modules_path) or die "ERROR while loading modules from directory $modules_path : $!\n";
313 while (defined (my $file = readdir (DIR))) {
314 if (not $file =~ /(\S*?).pm$/) {
315 next;
316 }
317 eval { require $file; };
318 if ($@) {
319 daemon_log("ERROR: gosa-sd could not load module $file", 1);
320 daemon_log("$@", 5);
321 next;
322 }
323 my $mod_name = $1;
324 #my $module_tag_hash = eval( $mod_name.'::get_module_tags()' );
326 my $info = eval($mod_name.'::get_module_info()');
327 my ($input_address, $input_key, $input, $input_active, $input_type) = @{$info};
328 $known_modules->{$mod_name} = $info;
330 daemon_log("module $mod_name loaded", 1);
331 }
333 # for debugging
334 #while ( my ($module, $tag_hash) = each(%$known_modules)) {
335 # print "\tmodule: $module"."\n";
336 # print "\ttags: ".join(", ", keys(%$tag_hash))."\n";
337 #}
338 close (DIR);
339 }
342 #=== FUNCTION ================================================================
343 # NAME: sig_int_handler
344 # PARAMETERS: signal - string - signal arose from system
345 # RETURNS: noting
346 # DESCRIPTION: handels tasks to be done befor signal becomes active
347 #===============================================================================
348 sub sig_int_handler {
349 my ($signal) = @_;
350 if($server){
351 close($server);
352 daemon_log("daemon server closed", 1);
353 }
354 if( -p $arp_fifo_path ) {
355 close $arp_fifo ;
356 unlink($arp_fifo_path) ;
357 daemon_log("ARP_FIFO closed", 1) ;
358 }
360 if($gosa_server){
361 close($gosa_server);
362 daemon_log("gosa server closed", 1);
363 }
365 print STDERR "$signal\n";
367 exit(1);
368 }
369 $SIG{INT} = \&sig_int_handler;
372 #=== FUNCTION ================================================================
373 # NAME: activating_child
374 # PARAMETERS: msg - string - incoming message
375 # host - string - host from which the incomming message comes
376 # RETURNS: nothing
377 # DESCRIPTION: handels the distribution of incoming messages to working childs
378 #===============================================================================
379 sub activating_child {
380 my ($msg, $host, $client) = @_;
381 my $child = &get_processing_child();
382 my $pipe_wr = $$child{'pipe_wr'};
383 my $pipe_rd = $$child{'pipe_rd'};
384 $$child{client_ref} = $client;
386 daemon_log("activating: childpid:$$child{'pid'}", 5);
388 print $pipe_wr $msg.".".$host."\n";
390 return;
391 }
394 #=== FUNCTION ================================================================
395 # NAME: get_processing_child
396 # PARAMETERS: nothing
397 # RETURNS: child - hash - holding the process id and the references to the pipe
398 # handles pipe_wr and pipe_rd
399 # DESCRIPTION: handels the forking, reactivating and keeping alive tasks
400 #===============================================================================
401 sub get_processing_child {
402 my $child;
404 while(my ($key, $val) = each(%free_child)) {
405 my $exitus_pid = waitpid($key, WNOHANG);
406 if($exitus_pid != 0) {
407 delete $free_child{$key};
408 }
409 daemon_log("free child:$key", 5);
410 }
411 # check @free_child and @busy_child
412 my $free_len = scalar(keys(%free_child));
413 my $busy_len = scalar(keys(%busy_child));
414 daemon_log("free children $free_len, busy children $busy_len", 5);
416 # if there is a free child, let the child work
417 if($free_len > 0){
418 my @keys = keys(%free_child);
419 $child = $free_child{$keys[0]};
420 if(defined $child) {
421 $busy_child{$$child{'pid'}} = $child ;
422 delete $free_child{$$child{'pid'}};
423 }
424 return $child;
425 }
427 # no free child, try to fork another one
428 if($free_len + $busy_len < $child_max) {
430 daemon_log("not enough children, create a new one", 5);
432 # New pipes for communication
433 my( $PARENT_wr, $PARENT_rd );
434 my( $CHILD_wr, $CHILD_rd );
435 pipe( $CHILD_rd, $PARENT_wr );
436 pipe( $PARENT_rd, $CHILD_wr );
437 $PARENT_wr->autoflush(1);
438 $CHILD_wr->autoflush(1);
440 ############
441 # fork child
442 ############
443 my $child_pid = fork();
445 #CHILD
446 if($child_pid == 0) {
447 # Close unused pipes
448 close( $CHILD_rd );
449 close( $CHILD_wr );
450 while( 1 ) {
451 my $rbits = "";
452 vec( $rbits, fileno $PARENT_rd , 1 ) = 1;
453 my $nf = select($rbits, undef, undef, $child_timeout);
454 if($nf < 0 ) {
455 die "select(): $!\n";
456 } elsif (! $nf) {
457 # if already child_min childs are alive, then leave loop
458 $free_len = scalar(keys(%free_child));
459 $busy_len = scalar(keys(%busy_child));
460 if($free_len + $busy_len >= $child_min) {
461 last;
462 } else {
463 redo;
464 }
465 }
467 # a job for a child arise
468 if ( vec $rbits, fileno $PARENT_rd, 1 ) {
469 # read everything from pipe
470 my $msg = "";
471 $PARENT_rd->blocking(0);
472 while(1) {
473 my $read = <$PARENT_rd>;
474 if(not defined $read) { last}
475 $msg .= $read;
476 }
478 ######################################
479 # forward msg to all imported modules
480 no strict "refs";
481 my $answer;
482 my %act_modules = %$known_modules;
483 while( my ($module, $info) = each(%act_modules)) {
484 &daemon_log("##########", 5);
485 my $tmp = &{ $module."::process_incoming_msg" }($msg);
486 if (defined $tmp) {
487 $answer = $tmp;
488 }
489 &daemon_log("##########", 5);
490 }
492 #&print_known_daemons();
493 #&print_known_clients();
495 daemon_log("processing of msg finished", 5);
497 if (defined $answer) {
498 print $PARENT_wr $answer."\n";
499 daemon_log("with answer: $answer", 5);
500 daemon_log(" ", 5);
501 } else {
502 print $PARENT_wr "done"."\n";
503 daemon_log(" ", 5);
504 }
505 redo;
506 }
507 }
508 # childs leaving the loop are allowed to die
509 exit(0);
512 #PARENT
513 } else {
514 # Close unused pipes
515 close( $PARENT_rd );
516 close( $PARENT_wr );
518 # add child to child alive hash
519 my %child_hash = (
520 'pid' => $child_pid,
521 'pipe_wr' => $CHILD_wr,
522 'pipe_rd' => $CHILD_rd,
523 'client_ref' => "",
524 );
526 $child = \%child_hash;
527 $busy_child{$$child{'pid'}} = $child;
528 return $child;
529 }
530 }
531 }
534 #=== FUNCTION ================================================================
535 # NAME: read_from_socket
536 # PARAMETERS: socket fh -
537 # RETURNS: result string - readed characters from socket
538 # DESCRIPTION: reads data from socket in 16 byte steps
539 #===============================================================================
540 sub read_from_socket {
541 my ($socket) = @_;
542 my $result = "";
544 $socket->blocking(1);
545 $result = <$socket>;
547 $socket->blocking(0);
548 while ( my $char = <$socket> ) {
549 if (not defined $char) { last }
550 $result .= $char;
551 }
553 return $result;
554 }
557 #=== FUNCTION ================================================================
558 # NAME: print_known_daemons
559 # PARAMETERS: nothing
560 # RETURNS: nothing
561 # DESCRIPTION: nomen est omen
562 #===============================================================================
563 #sub print_known_daemons {
564 # my ($tmp) = @_ ;
565 # print "####################################\n";
566 # print "# status of known_daemons\n";
567 # $shmda->shlock(LOCK_EX);
568 # my @hosts = keys %$known_daemons;
569 # foreach my $host (@hosts) {
570 # my $status = $known_daemons->{$host}->{status} ;
571 # my $passwd = $known_daemons->{$host}->{passwd};
572 # my $timestamp = $known_daemons->{$host}->{timestamp};
573 # print "$host\n";
574 # print "\tstatus: $status\n";
575 # print "\tpasswd: $passwd\n";
576 # print "\ttimestamp: $timestamp\n";
577 # }
578 # $shmda->shunlock(LOCK_EX);
579 # print "####################################\n";
580 # return;
581 #}
584 #=== FUNCTION ================================================================
585 # NAME: create_known_daemon
586 # PARAMETERS: hostname - string - key for the hash known_daemons
587 # RETURNS: nothing
588 # DESCRIPTION: creates a dummy entry for hostname in known_daemons
589 #===============================================================================
590 #sub create_known_daemon {
591 # my ($hostname) = @_;
592 # $shmda->shlock(LOCK_EX);
593 # $known_daemons->{$hostname} = {};
594 # $known_daemons->{$hostname}->{status} = "none";
595 # $known_daemons->{$hostname}->{passwd} = "none";
596 # $known_daemons->{$hostname}->{timestamp} = "none";
597 # $shmda->shunlock(LOCK_EX);
598 # return;
599 #}
602 #=== FUNCTION ================================================================
603 # NAME: add_content2known_daemons
604 # PARAMETERS: hostname - string - ip address and port of host (required)
605 # status - string - (optional)
606 # passwd - string - (optional)
607 # mac_address - string - mac address of host (optional)
608 # RETURNS: nothing
609 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
610 #===============================================================================
611 #sub add_content2known_daemons {
612 # my $arg = {
613 # hostname => undef, status => undef, passwd => undef,
614 # mac_address => undef, events => undef,
615 # @_ };
616 # my $hostname = $arg->{hostname};
617 # my $status = $arg->{status};
618 # my $passwd = $arg->{passwd};
619 # my $mac_address = $arg->{mac_address};
620 # my $events = $arg->{events};
621 #
622 # if (not defined $hostname) {
623 # daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
624 # return;
625 # }
626 #
627 # my ($seconds, $minutes, $hours, $monthday, $month,
628 # $year, $weekday, $yearday, $sommertime) = localtime(time);
629 # $hours = $hours < 10 ? $hours = "0".$hours : $hours;
630 # $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
631 # $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
632 # $month+=1;
633 # $month = $month < 10 ? $month = "0".$month : $month;
634 # $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
635 # $year+=1900;
636 # my $t = "$year$month$monthday$hours$minutes$seconds";
637 #
638 # $shmda->shlock(LOCK_EX);
639 # if (defined $status) {
640 # $known_daemons->{$hostname}->{status} = $status;
641 # }
642 # if (defined $passwd) {
643 # $known_daemons->{$hostname}->{passwd} = $passwd;
644 # }
645 # if (defined $mac_address) {
646 # $known_daemons->{$hostname}->{mac_address} = $mac_address;
647 # }
648 # if (defined $events) {
649 # $known_daemons->{$hostname}->{events} = $events;
650 # }
651 # $known_daemons->{$hostname}->{timestamp} = $t;
652 # $shmda->shlock(LOCK_EX);
653 # return;
654 #}
657 #=== FUNCTION ================================================================
658 # NAME: update_known_daemons
659 # PARAMETERS: hostname - string - ip address and port of host (required)
660 # status - string - (optional)
661 # passwd - string - (optional)
662 # client - string - ip address and port of client (optional)
663 # RETURNS: nothing
664 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
665 #===============================================================================
666 #sub update_known_daemons {
667 # my $arg = {
668 # hostname => undef, status => undef, passwd => undef,
669 # @_ };
670 # my $hostname = $arg->{hostname};
671 # my $status = $arg->{status};
672 # my $passwd = $arg->{passwd};
673 #
674 # if (not defined $hostname) {
675 # daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
676 # return;
677 # }
678 #
679 # my ($seconds, $minutes, $hours, $monthday, $month,
680 # $year, $weekday, $yearday, $sommertime) = localtime(time);
681 # $hours = $hours < 10 ? $hours = "0".$hours : $hours;
682 # $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
683 # $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
684 # $month+=1;
685 # $month = $month < 10 ? $month = "0".$month : $month;
686 # $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
687 # $year+=1900;
688 # my $t = "$year$month$monthday$hours$minutes$seconds";
689 #
690 # $shmda->shlock(LOCK_EX);
691 # if (defined $status) {
692 # $known_daemons->{$hostname}->{status} = $status;
693 # }
694 # if (defined $passwd) {
695 # $known_daemons->{$hostname}->{passwd} = $passwd;
696 # }
697 # $known_daemons->{$hostname}->{timestamp} = $t;
698 # $shmda->shunlock(LOCK_EX);
699 # return;
700 #}
703 #=== FUNCTION ================================================================
704 # NAME: print_known_clients
705 # PARAMETERS: nothing
706 # RETURNS: nothing
707 # DESCRIPTION: nomen est omen
708 #===============================================================================
709 #sub print_known_clients {
710 #
711 # print "####################################\n";
712 # print "# status of known_clients\n";
713 # $shmcl->shlock(LOCK_EX);
714 # my @hosts = keys %$known_clients;
715 # if (@hosts) {
716 # foreach my $host (@hosts) {
717 # my $status = $known_clients->{$host}->{status} ;
718 # my $passwd = $known_clients->{$host}->{passwd};
719 # my $timestamp = $known_clients->{$host}->{timestamp};
720 # my $mac_address = $known_clients->{$host}->{mac_address};
721 # my $events = $known_clients->{$host}->{events};
722 # print "$host\n";
723 # print "\tstatus: $status\n";
724 # print "\tpasswd: $passwd\n";
725 # print "\ttimestamp: $timestamp\n";
726 # print "\tmac_address: $mac_address\n";
727 # print "\tevents: $events\n";
728 # }
729 # }
730 # $shmcl->shunlock(LOCK_EX);
731 # print "####################################\n";
732 # return;
733 #}
736 #=== FUNCTION ================================================================
737 # NAME: create_known_client
738 # PARAMETERS: hostname - string - key for the hash known_clients
739 # RETURNS: nothing
740 # DESCRIPTION: creates a dummy entry for hostname in known_clients
741 #===============================================================================
742 sub create_known_client {
743 my ($hostname) = @_;
745 my $entry = { table=>'known_clients',
746 hostname=>$hostname,
747 status=>'none',
748 hostkey=>'none',
749 timestamp=>'none',
750 macaddress=>'none',
751 events=>'none',
752 };
753 my $res = $known_clients_db->add_dbentry($entry);
754 if ($res > 0) {
755 daemon_log("ERROR: cannot add entry to known_clients.db: $res", 1);
756 }
758 return;
759 }
762 #=== FUNCTION ================================================================
763 # NAME: add_content2known_clients
764 # PARAMETERS: hostname - string - ip address and port of host (required)
765 # status - string - (optional)
766 # passwd - string - (optional)
767 # mac_address - string - (optional)
768 # events - string - event of client, executable skripts
769 # under /etc/gosac/events
770 # RETURNS: nothing
771 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
772 #===============================================================================
773 #sub update_known_clients {
774 # my $arg = {
775 # hostname => undef, status => undef, hostkey => undef,
776 # macaddress => undef, events => undef, timestamp=>undef,
777 # @_ };
778 # my $hostname = $arg->{hostname};
779 # my $status = $arg->{status};
780 # my $hostkey = $arg->{hostkey};
781 # my $macaddress = $arg->{macaddress};
782 # my $events = $arg->{events};
783 # my $timestamp = $arg->{timestamp};
784 #
785 # if (not defined $hostname) {
786 # daemon_log("ERROR: function add_content2known_clients is not invoked with requiered parameter 'hostname'", 1);
787 # return;
788 # }
789 #
790 # my $change_entry = { table=>'known_clients',
791 # where=>'hostname',
792 # timestamp=>&get_time,
793 # };
794 #
795 #
796 # if (defined $status) {
797 # $change_entry->{status} = $status;
798 # }
799 # if (defined $hostkey) {
800 # $change_entry->{hostkey} = $hostkey;
801 # }
802 # if (defined $macaddress) {
803 # $change_entry->{macaddress} = $macaddress;
804 # }
805 # if (defined $events) {
806 # $change_entry->{events} = $events;
807 # }
808 #
809 # $known_clients->change_dbentry($change_entry);
810 # return;
811 #}
814 #=== FUNCTION ================================================================
815 # NAME:
816 # PARAMETERS:
817 # RETURNS:
818 # DESCRIPTION:
819 #===============================================================================
820 #sub clean_up_known_clients {
821 # my ($address) = @_ ;
822 #
823 # if (not exists $known_clients->{$address}) {
824 # daemon_log("cannot prune known_clients from $address, client not known", 5);
825 # return;
826 # }
827 #
828 # delete $known_clients->{$address};
829 #
830 # # send bus a msg that address was deleted from known_clients
831 # my $out_hash = &create_xml_hash('delete_client', $server_address, $bus_address, $address);
832 # &send_msg_hash2bus($out_hash);
833 #
834 # daemon_log("client $address deleted from known_clients because of multiple down time", 3);
835 # return;
836 #}
839 #=== FUNCTION ================================================================
840 # NAME: update_known_clients
841 # PARAMETERS: hostname - string - ip address and port of host (required)
842 # status - string - (optional)
843 # passwd - string - (optional)
844 # client - string - ip address and port of client (optional)
845 # RETURNS: nothing
846 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
847 #===============================================================================
848 #sub update_known_clients {
849 # my $arg = {
850 # hostname => undef, status => undef, passwd => undef,
851 # mac_address => undef, events => undef,
852 # @_ };
853 # my $hostname = $arg->{hostname};
854 # my $status = $arg->{status};
855 # my $passwd = $arg->{passwd};
856 # my $mac_address = $arg->{mac_address};
857 # my $events = $arg->{events};
858 #
859 # if (not defined $hostname) {
860 # daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
861 # return;
862 # }
863 #
864 # my ($seconds, $minutes, $hours, $monthday, $month,
865 # $year, $weekday, $yearday, $sommertime) = localtime(time);
866 # $hours = $hours < 10 ? $hours = "0".$hours : $hours;
867 # $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
868 # $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
869 # $month+=1;
870 # $month = $month < 10 ? $month = "0".$month : $month;
871 # $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
872 # $year+=1900;
873 # my $t = "$year$month$monthday$hours$minutes$seconds";
874 #
875 # if (defined $status) {
876 # $known_clients->{$hostname}->{status} = $status;
877 # }
878 # if (defined $passwd) {
879 # $known_clients->{$hostname}->{passwd} = $passwd;
880 # }
881 # if (defined $mac_address) {
882 # $known_clients->{$hostname}->{mac_address} = $mac_address;
883 # }
884 # if (defined $events) {
885 # $known_clients->{$hostname}->{events} = $events;
886 # }
887 # $known_clients_db->{$hostname}->{timestamp} = $t;
888 # return;
889 #}
897 #==== MAIN = main ==============================================================
899 # parse commandline options
900 Getopt::Long::Configure( "bundling" );
901 GetOptions("h|help" => \&usage,
902 "c|config=s" => \$cfg_file,
903 "f|foreground" => \$foreground,
904 "v|verbose+" => \$verbose,
905 "no-bus+" => \$no_bus,
906 "no-arp+" => \$no_arp,
907 );
909 # read and set config parameters
910 &check_cmdline_param ;
911 &read_configfile;
912 &check_pid;
914 $SIG{CHLD} = 'IGNORE';
916 # restart daemon log file
917 daemon_log(" ", 1);
918 daemon_log("$0 started!", 1);
920 # Just fork, if we"re not in foreground mode
921 if( ! $foreground ) {
922 chdir '/' or die "Can't chdir to /: $!";
923 $pid = fork;
924 setsid or die "Can't start a new session: $!";
925 umask 0;
926 } else {
927 $pid = $$;
928 }
930 # Do something useful - put our PID into the pid_file
931 if( 0 != $pid ) {
932 open( LOCK_FILE, ">$pid_file" );
933 print LOCK_FILE "$pid\n";
934 close( LOCK_FILE );
935 if( !$foreground ) {
936 exit( 0 )
937 };
938 }
940 # connect to gosa-si job queue
941 my @job_col_names = ("timestamp", "status", "result", "headertag", "targettag", "xmlmessage", "macaddress");
942 $job_db = GOSA::DBsqlite->new($job_queue_file_name);
943 $job_db->create_table('jobs', \@job_col_names);
945 # connect to known_clients_db
946 my @clients_col_names = ('hostname', 'status', 'hostkey', 'timestamp', 'macaddress', 'events');
947 $known_clients_db = GOSA::DBsqlite->new($known_clients_file_name);
948 $known_clients_db->create_table('known_clients', \@clients_col_names);
950 # connect to known_server_db
951 my @server_col_names = ('hostname', 'status', 'hostkey', 'timestamp');
952 $known_server_db = GOSA::DBsqlite->new($known_server_file_name);
953 $known_server_db->create_table('known_server', \@server_col_names);
955 # import all modules
956 &import_modules;
958 # check wether all modules are gosa-si valid passwd check
960 # create reading and writing vectors
961 my $rbits = my $wbits = my $ebits = "";
963 # add all module inputs to listening vector
964 while( my ($mod_name, $info) = each %$known_modules ) {
965 my ($input_address, $input_key, $input, $input_activ, $input_type) = @{$info};
966 vec($rbits, fileno $input, 1) = 1;
968 }
971 ## start arp fifo
972 #if ($no_arp > 0) {
973 # $arp_activ = "off";
974 #}
975 #my $my_fifo;
976 #if($arp_activ eq "on") {
977 # daemon_log(" ", 1);
978 # $my_fifo = &open_fifo($arp_fifo_path);
979 # if($my_fifo == 0) { die "fifo file disappeared\n" }
980 # sysopen($arp_fifo, $arp_fifo_path, O_RDWR) or die "can't read from $arp_fifo: $!" ;
981 #
982 # vec($rbits, fileno $arp_fifo, 1) = 1;
983 #}
984 #
986 ##################################
987 #everything ready, okay, lets start
988 ##################################
989 while(1) {
991 # add all handles from the childs
992 while ( my ($pid, $child_hash) = each %busy_child ) {
994 # check whether process still exists
995 my $exitus_pid = waitpid($pid, WNOHANG);
996 if($exitus_pid != 0) {
997 delete $busy_child{$pid};
998 next;
999 }
1001 # add child fhd to the listener
1002 my $fhd = $$child_hash{'pipe_rd'};
1003 vec($rbits, fileno $fhd, 1) = 1;
1004 }
1006 my ($rout, $wout);
1007 my $nf = select($rout=$rbits, $wout=$wbits, undef, $job_queue_timeout);
1009 # error handling
1010 if($nf < 0 ) {
1011 }
1014 # if($arp_activ eq "on" && vec($rout, fileno $arp_fifo, 1)) {
1015 # my $in_msg = <$arp_fifo>;
1016 # chomp($in_msg);
1017 # print "arp_activ: msg: $in_msg\n";
1018 # my $act_passwd = $known_daemons->{$bus_address}->{passwd};
1019 # print "arp_activ: arp_passwd: $act_passwd\n";
1020 #
1021 # my $in_msg_hash = $xml->XMLin($in_msg, ForceArray=>1);
1022 #
1023 # my $target = &get_content_from_xml_hash($in_msg_hash, 'target');
1024 #
1025 # if ($target eq $server_address) {
1026 # print "arp_activ: forward to server\n";
1027 # my $arp_cipher = &create_ciphering($act_passwd);
1028 # my $crypted_msg = &encrypt_msg($in_msg, $arp_cipher);
1029 # &activating_child($crypted_msg, $server_ip);
1030 # } else {
1031 # print "arp_activ: send to bus\n";
1032 # &send_msg_hash2address($in_msg_hash, $bus_address);
1033 # }
1034 # print "\n";
1035 # }
1038 # check input fhd of all modules
1039 while ( my ($mod_name, $info) = each %$known_modules) {
1040 my $input_fhd = @{$info}[2];
1041 my $input_activ = @{$info}[3];
1042 if (vec($rout, fileno $input_fhd, 1) && $input_activ eq 'on') {
1043 daemon_log(" ", 1);
1044 my $client = $input_fhd->accept();
1045 my $other_end = getpeername($client);
1046 if(not defined $other_end) {
1047 daemon_log("client cannot be identified: $!");
1048 } else {
1049 my ($port, $iaddr) = unpack_sockaddr_in($other_end);
1050 my $actual_ip = inet_ntoa($iaddr);
1051 daemon_log("accept client at daemon socket from $actual_ip", 5);
1052 my $in_msg = &read_from_socket($client);
1053 if(defined $in_msg){
1054 chomp($in_msg);
1055 &activating_child($in_msg, $actual_ip, $client);
1056 } else {
1057 daemon_log("cannot read from $actual_ip", 5);
1058 }
1059 }
1060 }
1061 }
1063 # check all processing childs whether they are finished ('done') or
1064 while ( my ($pid, $child_hash) = each %busy_child ) {
1065 my $fhd = $$child_hash{'pipe_rd'};
1067 if (vec($rout, fileno $fhd, 1) ) {
1068 daemon_log("process child $pid is ready to read", 5);
1070 $fhd->blocking(1);
1071 my $in_msg = <$fhd>;
1072 $fhd->blocking(0);
1073 my $part_in_msg;
1074 while ($part_in_msg = <$fhd>) {
1075 if (not defined $part_in_msg) {
1076 last;
1077 }
1078 $in_msg .= $part_in_msg;
1079 }
1080 chomp($in_msg);
1082 daemon_log("process child read: $in_msg", 5);
1083 if (not defined $in_msg) {
1084 next;
1085 } elsif ($in_msg =~ "done") {
1086 delete $busy_child{$pid};
1087 $free_child{$pid} = $child_hash;
1089 } else {
1090 # send computed answer back to connected client
1091 my $act_client = $busy_child{$pid}{client_ref};
1092 print $act_client $in_msg."\n";
1094 #my $act_pipe = $busy_child{$pid}{pipe_rd};
1095 delete $busy_child{$pid};
1096 $free_child{$pid} = $child_hash;
1098 # give the client a chance to read
1099 sleep(2);
1100 close ($act_client);
1101 }
1102 }
1103 }
1105 # check gosa job queue for jobs with executable timestamp
1106 my ($seconds, $minutes, $hours, $monthday, $month,
1107 $year, $weekday, $yearday, $sommertime) = localtime(time);
1108 $hours = $hours < 10 ? $hours = "0".$hours : $hours;
1109 $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
1110 $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
1111 $month+=1;
1112 $month = $month < 10 ? $month = "0".$month : $month;
1113 $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
1114 $year+=1900;
1115 my $timestamp = "$year$month$monthday$hours$minutes$seconds";
1118 my $res = $job_db->select_dbentry( { table=>$job_queue_table_name, status=>'waiting', timestamp=>$timestamp } );
1120 while( my ($id, $hit) = each %{$res} ) {
1122 my $jobdb_id = $hit->{ROWID};
1123 my $macaddress = $hit->{macaddress};
1124 my $job_msg_hash = &transform_msg2hash($hit->{xmlmessage});
1125 my $out_msg_hash = $job_msg_hash;
1126 my $res_hash = $known_clients_db->select_dbentry( {table=>'known_clients', macaddress=>$macaddress} );
1127 # expect macaddress is unique!!!!!!
1128 my $target = $res_hash->{1}->{hostname};
1130 if (not defined $target) {
1131 &daemon_log("ERROR: no host found for mac address: $job_msg_hash->{mac}[0]", 1);
1132 &daemon_log("xml message: $hit->{xmlmessage}", 5);
1133 my $update_hash = { table=>$job_queue_table_name,
1134 update=> [ { status=>['error'], result=>["no host found for mac address"] } ],
1135 where=> [ { ROWID=>[$jobdb_id] } ],
1136 };
1137 my $res = $job_db->update_dbentry($update_hash);
1139 next;
1140 }
1142 # add target
1143 &add_content2xml_hash($out_msg_hash, "target", $target);
1145 # add new header
1146 my $out_header = $job_msg_hash->{header}[0];
1147 $out_header =~ s/job_/gosa_/;
1148 delete $out_msg_hash->{header};
1149 &add_content2xml_hash($out_msg_hash, "header", $out_header);
1151 # add sqlite_id
1152 &add_content2xml_hash($out_msg_hash, "jobdb_id", $jobdb_id);
1154 my $out_msg = &create_xml_string($out_msg_hash);
1156 # encrypt msg as a GosaPackage module
1157 my $cipher = &create_ciphering($gosa_passwd);
1158 my $crypted_out_msg = &encrypt_msg($out_msg, $cipher);
1160 my $error = &send_msg_hash2address($out_msg_hash, "$gosa_ip:$gosa_port", $gosa_passwd);
1162 #######################
1163 # TODO exchange ROWID with jobid, insert column jobid in table jobs befor
1165 if ($error == 0) {
1166 my $sql = "UPDATE '$job_queue_table_name' SET status='processing', targettag='$target' WHERE ROWID='$jobdb_id'";
1167 my $res = $job_db->exec_statement($sql);
1168 } else {
1169 my $update_hash = { table=>$job_queue_table_name,
1170 update=> [ { status=>'error' } ],
1171 where=> [ { ROWID=>$jobdb_id } ],
1172 };
1173 my $res = $job_db->update_dbentry($update_hash);
1174 }
1176 }
1179 }