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 # BUGS: ---
14 # NOTES:
15 # AUTHOR: (Andreas Rettenberger), <rettenberger@gonicus.de>
16 # COMPANY:
17 # VERSION: 1.0
18 # CREATED: 12.09.2007 08:54:41 CEST
19 # REVISION: ---
20 #===============================================================================
23 use strict;
24 use warnings;
25 use Getopt::Long;
26 use Config::IniFiles;
27 use POSIX;
28 use Time::HiRes qw( gettimeofday );
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 GOSA::GosaSupportDaemon;
44 use GOSA::DBsqlite;
45 use threads;
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, $msg_to_bus, $bus_cipher);
52 my ($server, $server_mac_address, $server_events);
53 my ($gosa_server, $job_queue_timeout, $job_queue_table_name, $job_queue_file_name);
54 my ($known_modules, $known_clients_file_name, $known_server_file_name);
55 my ($max_clients);
56 my ($pid_file, $procid, $pid, $log_file);
57 my (%free_child, %busy_child, $child_max, $child_min, %child_alive_time, $child_timeout);
58 my ($arp_activ, $arp_fifo, $arp_fifo_path);
60 # variables declared in config file are always set to 'our'
61 our (%cfg_defaults, $log_file, $pid_file,
62 $bus_activ, $bus_passwd, $bus_ip, $bus_port,
63 $server_activ, $server_ip, $server_port, $server_passwd, $max_clients,
64 $arp_activ, $arp_fifo_path,
65 $gosa_activ, $gosa_passwd, $gosa_ip, $gosa_port, $gosa_timeout,
66 );
68 # additional variable which should be globaly accessable
69 our $xml;
70 our $server_address;
71 our $bus_address;
72 our $gosa_address;
73 our $no_bus;
74 our $no_arp;
75 our $verbose;
76 our $forground;
77 our $cfg_file;
79 # specifies the verbosity of the daemon_log
80 $verbose = 0 ;
82 # if foreground is not null, script will be not forked to background
83 $foreground = 0 ;
85 # specifies the timeout seconds while checking the online status of a registrating client
86 $ping_timeout = 5;
88 $no_bus = 0;
90 $no_arp = 0;
92 # name of table for storing gosa jobs
93 our $job_queue_table_name = 'jobs';
94 our $job_db;
96 # holds all other gosa-sd as well as the gosa-sd-bus
97 our $known_server_db;
99 # holds all registrated clients
100 our $known_clients_db;
102 %cfg_defaults =
103 ("general" =>
104 {"log_file" => [\$log_file, "/var/run/".$0.".log"],
105 "pid_file" => [\$pid_file, "/var/run/".$0.".pid"],
106 "child_max" => [\$child_max, 10],
107 "child_min" => [\$child_min, 3],
108 "child_timeout" => [\$child_timeout, 180],
109 "job_queue_timeout" => [\$job_queue_timeout, undef],
110 "job_queue_file_name" => [\$job_queue_file_name, '/var/lib/gosa-si/jobs.db'],
111 "known_clients_file_name" => [\$known_clients_file_name, '/var/lib/gosa-si/known_clients.db' ],
112 "known_server_file_name" => [\$known_server_file_name, '/var/lib/gosa-si/known_server.db'],
113 },
114 "bus" =>
115 {"bus_activ" => [\$bus_activ, "on"],
116 "bus_passwd" => [\$bus_passwd, ""],
117 "bus_ip" => [\$bus_ip, "0.0.0.0"],
118 "bus_port" => [\$bus_port, "20080"],
119 },
120 "server" =>
121 {"server_activ" => [\$server_activ, "on"],
122 "server_ip" => [\$server_ip, "0.0.0.0"],
123 "server_port" => [\$server_port, "20081"],
124 "server_passwd" => [\$server_passwd, ""],
125 "max_clients" => [\$max_clients, 100],
126 },
127 "arp" =>
128 {"arp_activ" => [\$arp_activ, "on"],
129 "arp_fifo_path" => [\$arp_fifo_path, "/var/run/gosa-si/arp-notify"],
130 },
131 "gosa" =>
132 {"gosa_activ" => [\$gosa_activ, "on"],
133 "gosa_ip" => [\$gosa_ip, "0.0.0.0"],
134 "gosa_port" => [\$gosa_port, "20082"],
135 "gosa_passwd" => [\$gosa_passwd, "none"],
136 },
137 );
140 #=== FUNCTION ================================================================
141 # NAME: usage
142 # PARAMETERS: nothing
143 # RETURNS: nothing
144 # DESCRIPTION: print out usage text to STDERR
145 #===============================================================================
146 sub usage {
147 print STDERR << "EOF" ;
148 usage: $0 [-hvf] [-c config]
150 -h : this (help) message
151 -c <file> : config file
152 -f : foreground, process will not be forked to background
153 -v : be verbose (multiple to increase verbosity)
154 -no-bus : starts $0 without connection to bus
155 -no-arp : starts $0 without connection to arp module
157 EOF
158 print "\n" ;
159 }
162 #=== FUNCTION ================================================================
163 # NAME: read_configfile
164 # PARAMETERS: cfg_file - string -
165 # RETURNS: nothing
166 # DESCRIPTION: read cfg_file and set variables
167 #===============================================================================
168 sub read_configfile {
169 my $cfg;
170 if( defined( $cfg_file) && ( length($cfg_file) > 0 )) {
171 if( -r $cfg_file ) {
172 $cfg = Config::IniFiles->new( -file => $cfg_file );
173 } else {
174 print STDERR "Couldn't read config file!\n";
175 }
176 } else {
177 $cfg = Config::IniFiles->new() ;
178 }
179 foreach my $section (keys %cfg_defaults) {
180 foreach my $param (keys %{$cfg_defaults{ $section }}) {
181 my $pinfo = $cfg_defaults{ $section }{ $param };
182 ${@$pinfo[ 0 ]} = $cfg->val( $section, $param, @$pinfo[ 1 ] );
183 }
184 }
185 }
188 #=== FUNCTION ================================================================
189 # NAME: logging
190 # PARAMETERS: level - string - default 'info'
191 # msg - string -
192 # facility - string - default 'LOG_DAEMON'
193 # RETURNS: nothing
194 # DESCRIPTION: function for logging
195 #===============================================================================
196 sub daemon_log : locked {
197 # log into log_file
198 my( $msg, $level ) = @_;
199 if(not defined $msg) { return }
200 if(not defined $level) { $level = 1 }
201 if(defined $log_file){
202 open(LOG_HANDLE, ">>$log_file");
203 if(not defined open( LOG_HANDLE, ">>$log_file" )) {
204 print STDERR "cannot open $log_file: $!";
205 return }
206 chomp($msg);
207 if($level <= $verbose){
208 my ($seconds, $minutes, $hours, $monthday, $month,
209 $year, $weekday, $yearday, $sommertime) = localtime(time);
210 $hours = $hours < 10 ? $hours = "0".$hours : $hours;
211 $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
212 $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
213 my @monthnames = ("Jan", "Feb", "Mar", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
214 $month = $monthnames[$month];
215 $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
216 $year+=1900;
217 my $name = $0;
218 $name =~ s/\.\///;
220 my $log_msg = "$month $monthday $hours:$minutes:$seconds $name $msg\n";
221 print LOG_HANDLE $log_msg;
222 if( $foreground ) {
223 print STDERR $log_msg;
224 }
225 }
226 close( LOG_HANDLE );
227 }
228 #log into syslog
229 # my ($msg, $level, $facility) = @_;
230 # if(not defined $msg) {return}
231 # if(not defined $level) {$level = "info"}
232 # if(not defined $facility) {$facility = "LOG_DAEMON"}
233 # openlog($0, "pid,cons,", $facility);
234 # syslog($level, $msg);
235 # closelog;
236 # return;
237 }
240 #=== FUNCTION ================================================================
241 # NAME: check_cmdline_param
242 # PARAMETERS: nothing
243 # RETURNS: nothing
244 # DESCRIPTION: validates commandline parameter
245 #===============================================================================
246 sub check_cmdline_param () {
247 my $err_config;
248 my $err_counter = 0;
249 if( not defined( $cfg_file)) {
250 #$err_config = "please specify a config file";
251 #$err_counter += 1;
252 my $cwd = getcwd;
253 my $name = "/etc/gosa-si/server.conf";
254 $cfg_file = File::Spec->catfile( $cwd, $name );
255 }
256 if( $err_counter > 0 ) {
257 &usage( "", 1 );
258 if( defined( $err_config)) { print STDERR "$err_config\n"}
259 print STDERR "\n";
260 exit( -1 );
261 }
262 }
265 #=== FUNCTION ================================================================
266 # NAME: check_pid
267 # PARAMETERS: nothing
268 # RETURNS: nothing
269 # DESCRIPTION: handels pid processing
270 #===============================================================================
271 sub check_pid {
272 $pid = -1;
273 # Check, if we are already running
274 if( open(LOCK_FILE, "<$pid_file") ) {
275 $pid = <LOCK_FILE>;
276 if( defined $pid ) {
277 chomp( $pid );
278 if( -f "/proc/$pid/stat" ) {
279 my($stat) = `cat /proc/$pid/stat` =~ m/$pid \((.+)\).*/;
280 if( $0 eq $stat ) {
281 close( LOCK_FILE );
282 exit -1;
283 }
284 }
285 }
286 close( LOCK_FILE );
287 unlink( $pid_file );
288 }
290 # create a syslog msg if it is not to possible to open PID file
291 if (not sysopen(LOCK_FILE, $pid_file, O_WRONLY|O_CREAT|O_EXCL, 0644)) {
292 my($msg) = "Couldn't obtain lockfile '$pid_file' ";
293 if (open(LOCK_FILE, '<', $pid_file)
294 && ($pid = <LOCK_FILE>))
295 {
296 chomp($pid);
297 $msg .= "(PID $pid)\n";
298 } else {
299 $msg .= "(unable to read PID)\n";
300 }
301 if( ! ($foreground) ) {
302 openlog( $0, "cons,pid", "daemon" );
303 syslog( "warning", $msg );
304 closelog();
305 }
306 else {
307 print( STDERR " $msg " );
308 }
309 exit( -1 );
310 }
311 }
313 #=== FUNCTION ================================================================
314 # NAME: import_modules
315 # PARAMETERS: module_path - string - abs. path to the directory the modules
316 # are stored
317 # RETURNS: nothing
318 # DESCRIPTION: each file in module_path which ends with '.pm' is imported by
319 # "require 'file';"
320 #===============================================================================
321 sub import_modules {
322 daemon_log(" ", 1);
324 if (not -e $modules_path) {
325 daemon_log("ERROR: cannot find directory or directory is not readable: $modules_path", 1);
326 }
328 opendir (DIR, $modules_path) or die "ERROR while loading modules from directory $modules_path : $!\n";
329 while (defined (my $file = readdir (DIR))) {
330 if (not $file =~ /(\S*?).pm$/) {
331 next;
332 }
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 $mod_name = $1;
339 my $info = eval($mod_name.'::get_module_info()');
340 my ($input_address, $input_key, $input, $input_active, $input_type) = @{$info};
341 $known_modules->{$mod_name} = $info;
343 daemon_log("module $mod_name loaded", 1);
344 }
345 }
347 # for debugging
348 #while ( my ($module, $tag_hash) = each(%$known_modules)) {
349 # print "\tmodule: $module"."\n";
350 # print "\ttags: ".join(", ", keys(%$tag_hash))."\n";
351 #}
352 close (DIR);
353 }
356 #=== FUNCTION ================================================================
357 # NAME: sig_int_handler
358 # PARAMETERS: signal - string - signal arose from system
359 # RETURNS: noting
360 # DESCRIPTION: handels tasks to be done befor signal becomes active
361 #===============================================================================
362 sub sig_int_handler {
363 my ($signal) = @_;
365 daemon_log("shutting down gosa-si-server", 1);
366 exit(1);
367 }
368 $SIG{INT} = \&sig_int_handler;
371 #=== FUNCTION ================================================================
372 # NAME: activating_child
373 # PARAMETERS: msg - string - incoming message
374 # host - string - host from which the incomming message comes
375 # RETURNS: nothing
376 # DESCRIPTION: handels the distribution of incoming messages to working childs
377 #===============================================================================
378 sub activating_child {
379 my ($msg, $host, $client) = @_;
380 my $child = &get_processing_child();
381 my $pipe_wr = $$child{'pipe_wr'};
382 my $pipe_rd = $$child{'pipe_rd'};
383 $$child{client_ref} = $client;
385 daemon_log("activating: childpid:$$child{'pid'}", 5);
387 print $pipe_wr $msg.".".$host."\n";
389 return;
390 }
393 #=== FUNCTION ================================================================
394 # NAME: get_processing_child
395 # PARAMETERS: nothing
396 # RETURNS: child - hash - holding the process id and the references to the pipe
397 # handles pipe_wr and pipe_rd
398 # DESCRIPTION: handels the forking, reactivating and keeping alive tasks
399 #===============================================================================
400 sub get_processing_child {
401 my $child;
403 while(my ($key, $val) = each(%free_child)) {
404 my $exitus_pid = waitpid($key, WNOHANG);
405 if($exitus_pid != 0) {
406 delete $free_child{$key};
407 }
408 daemon_log("free child:$key", 5);
409 }
410 # check @free_child and @busy_child
411 my $free_len = scalar(keys(%free_child));
412 my $busy_len = scalar(keys(%busy_child));
413 daemon_log("free children $free_len, busy children $busy_len", 5);
415 # if there is a free child, let the child work
416 if($free_len > 0){
417 my @keys = keys(%free_child);
418 $child = $free_child{$keys[0]};
419 if(defined $child) {
420 $busy_child{$$child{'pid'}} = $child ;
421 delete $free_child{$$child{'pid'}};
422 }
423 return $child;
424 }
426 # no free child, try to fork another one
427 if($free_len + $busy_len < $child_max) {
429 daemon_log("not enough children, create a new one", 5);
431 # New pipes for communication
432 my( $PARENT_wr, $PARENT_rd );
433 my( $CHILD_wr, $CHILD_rd );
434 pipe( $CHILD_rd, $PARENT_wr );
435 pipe( $PARENT_rd, $CHILD_wr );
436 $PARENT_wr->autoflush(1);
437 $CHILD_wr->autoflush(1);
439 ############
440 # fork child
441 ############
442 my $child_pid = fork();
444 #CHILD
445 if($child_pid == 0) {
446 # Close unused pipes
447 close( $CHILD_rd );
448 close( $CHILD_wr );
449 while( 1 ) {
450 my $rbits = "";
451 vec( $rbits, fileno $PARENT_rd , 1 ) = 1;
452 my $nf = select($rbits, undef, undef, $child_timeout);
453 if($nf < 0 ) {
454 die "select(): $!\n";
455 } elsif (! $nf) {
456 # if already child_min childs are alive, then leave loop
457 $free_len = scalar(keys(%free_child));
458 $busy_len = scalar(keys(%busy_child));
459 if($free_len + $busy_len >= $child_min) {
460 last;
461 } else {
462 redo;
463 }
464 }
466 # a job for a child arise
467 if ( vec $rbits, fileno $PARENT_rd, 1 ) {
468 # read everything from pipe
469 my $msg = "";
470 $PARENT_rd->blocking(0);
471 while(1) {
472 my $read = <$PARENT_rd>;
473 if(not defined $read) { last}
474 $msg .= $read;
475 }
477 ######################################
478 # forward msg to all imported modules
479 no strict "refs";
480 my $answer;
481 my %act_modules = %$known_modules;
482 while( my ($module, $info) = each(%act_modules)) {
483 my $tmp = &{ $module."::process_incoming_msg" }($msg);
484 if (defined $tmp) {
485 $answer = $tmp;
486 }
487 }
488 daemon_log("processing of msg finished", 5);
490 if (defined $answer) {
491 print $PARENT_wr $answer."\n";
492 print $PARENT_wr "ENDMESSAGE\n";
493 my $len_answer = length $answer;
494 daemon_log("with answer: length of answer: $len_answer", 7);
495 daemon_log("\n$answer", 7);
496 } else {
497 print $PARENT_wr "done"."\n";
498 print $PARENT_wr "ENDMESSAGE\n";
499 }
500 redo;
501 }
502 }
503 # childs leaving the loop are allowed to die
504 exit(0);
507 #PARENT
508 } else {
509 # Close unused pipes
510 close( $PARENT_rd );
511 close( $PARENT_wr );
513 # add child to child alive hash
514 my %child_hash = (
515 'pid' => $child_pid,
516 'pipe_wr' => $CHILD_wr,
517 'pipe_rd' => $CHILD_rd,
518 'client_ref' => "",
519 );
521 $child = \%child_hash;
522 $busy_child{$$child{'pid'}} = $child;
523 return $child;
524 }
525 }
526 }
529 #=== FUNCTION ================================================================
530 # NAME: read_from_socket
531 # PARAMETERS: socket fh -
532 # RETURNS: result string - readed characters from socket
533 # DESCRIPTION: reads data from socket in 16 byte steps
534 #===============================================================================
535 sub read_from_socket {
536 my ($socket) = @_;
537 my $result = "";
539 $socket->blocking(1);
540 $result = <$socket>;
542 $socket->blocking(0);
543 while ( my $char = <$socket> ) {
544 if (not defined $char) { last }
545 $result .= $char;
546 }
548 return $result;
549 }
552 #=== FUNCTION ================================================================
553 # NAME: print_known_daemons
554 # PARAMETERS: nothing
555 # RETURNS: nothing
556 # DESCRIPTION: nomen est omen
557 #===============================================================================
558 #sub print_known_daemons {
559 # my ($tmp) = @_ ;
560 # print "####################################\n";
561 # print "# status of known_daemons\n";
562 # $shmda->shlock(LOCK_EX);
563 # my @hosts = keys %$known_daemons;
564 # foreach my $host (@hosts) {
565 # my $status = $known_daemons->{$host}->{status} ;
566 # my $passwd = $known_daemons->{$host}->{passwd};
567 # my $timestamp = $known_daemons->{$host}->{timestamp};
568 # print "$host\n";
569 # print "\tstatus: $status\n";
570 # print "\tpasswd: $passwd\n";
571 # print "\ttimestamp: $timestamp\n";
572 # }
573 # $shmda->shunlock(LOCK_EX);
574 # print "####################################\n";
575 # return;
576 #}
579 #=== FUNCTION ================================================================
580 # NAME: create_known_daemon
581 # PARAMETERS: hostname - string - key for the hash known_daemons
582 # RETURNS: nothing
583 # DESCRIPTION: creates a dummy entry for hostname in known_daemons
584 #===============================================================================
585 #sub create_known_daemon {
586 # my ($hostname) = @_;
587 # $shmda->shlock(LOCK_EX);
588 # $known_daemons->{$hostname} = {};
589 # $known_daemons->{$hostname}->{status} = "none";
590 # $known_daemons->{$hostname}->{passwd} = "none";
591 # $known_daemons->{$hostname}->{timestamp} = "none";
592 # $shmda->shunlock(LOCK_EX);
593 # return;
594 #}
597 #=== FUNCTION ================================================================
598 # NAME: add_content2known_daemons
599 # PARAMETERS: hostname - string - ip address and port of host (required)
600 # status - string - (optional)
601 # passwd - string - (optional)
602 # mac_address - string - mac address of host (optional)
603 # RETURNS: nothing
604 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
605 #===============================================================================
606 #sub add_content2known_daemons {
607 # my $arg = {
608 # hostname => undef, status => undef, passwd => undef,
609 # mac_address => undef, events => undef,
610 # @_ };
611 # my $hostname = $arg->{hostname};
612 # my $status = $arg->{status};
613 # my $passwd = $arg->{passwd};
614 # my $mac_address = $arg->{mac_address};
615 # my $events = $arg->{events};
616 #
617 # if (not defined $hostname) {
618 # daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
619 # return;
620 # }
621 #
622 # my ($seconds, $minutes, $hours, $monthday, $month,
623 # $year, $weekday, $yearday, $sommertime) = localtime(time);
624 # $hours = $hours < 10 ? $hours = "0".$hours : $hours;
625 # $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
626 # $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
627 # $month+=1;
628 # $month = $month < 10 ? $month = "0".$month : $month;
629 # $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
630 # $year+=1900;
631 # my $t = "$year$month$monthday$hours$minutes$seconds";
632 #
633 # $shmda->shlock(LOCK_EX);
634 # if (defined $status) {
635 # $known_daemons->{$hostname}->{status} = $status;
636 # }
637 # if (defined $passwd) {
638 # $known_daemons->{$hostname}->{passwd} = $passwd;
639 # }
640 # if (defined $mac_address) {
641 # $known_daemons->{$hostname}->{mac_address} = $mac_address;
642 # }
643 # if (defined $events) {
644 # $known_daemons->{$hostname}->{events} = $events;
645 # }
646 # $known_daemons->{$hostname}->{timestamp} = $t;
647 # $shmda->shlock(LOCK_EX);
648 # return;
649 #}
652 #=== FUNCTION ================================================================
653 # NAME: update_known_daemons
654 # PARAMETERS: hostname - string - ip address and port of host (required)
655 # status - string - (optional)
656 # passwd - string - (optional)
657 # client - string - ip address and port of client (optional)
658 # RETURNS: nothing
659 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
660 #===============================================================================
661 #sub update_known_daemons {
662 # my $arg = {
663 # hostname => undef, status => undef, passwd => undef,
664 # @_ };
665 # my $hostname = $arg->{hostname};
666 # my $status = $arg->{status};
667 # my $passwd = $arg->{passwd};
668 #
669 # if (not defined $hostname) {
670 # daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
671 # return;
672 # }
673 #
674 # my ($seconds, $minutes, $hours, $monthday, $month,
675 # $year, $weekday, $yearday, $sommertime) = localtime(time);
676 # $hours = $hours < 10 ? $hours = "0".$hours : $hours;
677 # $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
678 # $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
679 # $month+=1;
680 # $month = $month < 10 ? $month = "0".$month : $month;
681 # $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
682 # $year+=1900;
683 # my $t = "$year$month$monthday$hours$minutes$seconds";
684 #
685 # $shmda->shlock(LOCK_EX);
686 # if (defined $status) {
687 # $known_daemons->{$hostname}->{status} = $status;
688 # }
689 # if (defined $passwd) {
690 # $known_daemons->{$hostname}->{passwd} = $passwd;
691 # }
692 # $known_daemons->{$hostname}->{timestamp} = $t;
693 # $shmda->shunlock(LOCK_EX);
694 # return;
695 #}
698 #=== FUNCTION ================================================================
699 # NAME: print_known_clients
700 # PARAMETERS: nothing
701 # RETURNS: nothing
702 # DESCRIPTION: nomen est omen
703 #===============================================================================
704 #sub print_known_clients {
705 #
706 # print "####################################\n";
707 # print "# status of known_clients\n";
708 # $shmcl->shlock(LOCK_EX);
709 # my @hosts = keys %$known_clients;
710 # if (@hosts) {
711 # foreach my $host (@hosts) {
712 # my $status = $known_clients->{$host}->{status} ;
713 # my $passwd = $known_clients->{$host}->{passwd};
714 # my $timestamp = $known_clients->{$host}->{timestamp};
715 # my $mac_address = $known_clients->{$host}->{mac_address};
716 # my $events = $known_clients->{$host}->{events};
717 # print "$host\n";
718 # print "\tstatus: $status\n";
719 # print "\tpasswd: $passwd\n";
720 # print "\ttimestamp: $timestamp\n";
721 # print "\tmac_address: $mac_address\n";
722 # print "\tevents: $events\n";
723 # }
724 # }
725 # $shmcl->shunlock(LOCK_EX);
726 # print "####################################\n";
727 # return;
728 #}
731 #=== FUNCTION ================================================================
732 # NAME: create_known_client
733 # PARAMETERS: hostname - string - key for the hash known_clients
734 # RETURNS: nothing
735 # DESCRIPTION: creates a dummy entry for hostname in known_clients
736 #===============================================================================
737 sub create_known_client {
738 my ($hostname) = @_;
740 my $entry = { table=>'known_clients',
741 hostname=>$hostname,
742 status=>'none',
743 hostkey=>'none',
744 timestamp=>'none',
745 macaddress=>'none',
746 events=>'none',
747 };
748 my $res = $known_clients_db->add_dbentry($entry);
749 if ($res > 0) {
750 daemon_log("ERROR: cannot add entry to known_clients.db: $res", 1);
751 }
753 return;
754 }
756 #sub sysreadline(*;$) {
757 # my ($hd, $timeout) = @_;
758 #
759 # $hd = qualify_to_ref($hd, caller());
760 # my $infinitely_patient = (@_ == 1 || $timeout < 0);
761 # my $start_time = time();
762 # my $selector = IO::Select->new();
763 # $selector->add($hd);
764 # my $line = "";
765 #
766 #SLEEP:
767 # until( at_eol($line)) {
768 # if (not $infinitely_patient) {
769 # return $line if time() > ($start_time + $timeout);
770 # }
771 # next SLEEP unless $selector->can_read(1.0);
772 #INPUT_READY:
773 # while( $selector->can_read(0.0)) {
774 # my $was_blocking = $hd->blocking(0);
775 #CHAR: while (sysread($hd, my $nextbyte, 1)) {
776 # $line .= $nextbyte;
777 # last CHAR if $nextbyte eq "\n";
778 #
779 # }
780 # $hd->blocking($was_blocking);
781 # next SLEEP unless at_eol($line);
782 # last INPUT_READY;
783 # }
784 # }
785 # return $line;
786 #}
787 #
788 #sub at_eol($) {
789 # $_[0] =~ /\n\z/ ;
790 #}
792 #==== MAIN = main ==============================================================
794 # parse commandline options
795 Getopt::Long::Configure( "bundling" );
796 GetOptions("h|help" => \&usage,
797 "c|config=s" => \$cfg_file,
798 "f|foreground" => \$foreground,
799 "v|verbose+" => \$verbose,
800 "no-bus+" => \$no_bus,
801 "no-arp+" => \$no_arp,
802 );
804 # read and set config parameters
805 &check_cmdline_param ;
806 &read_configfile;
807 &check_pid;
809 $SIG{CHLD} = 'IGNORE';
811 # forward error messages to logfile
812 if( ! $foreground ) {
813 open(STDERR, '>>', $log_file);
814 open(STDOUT, '>>', $log_file);
815 }
817 # Just fork, if we are not in foreground mode
818 if( ! $foreground ) {
819 chdir '/' or die "Can't chdir to /: $!";
820 $pid = fork;
821 setsid or die "Can't start a new session: $!";
822 umask 0;
823 } else {
824 $pid = $$;
825 }
827 # Do something useful - put our PID into the pid_file
828 if( 0 != $pid ) {
829 open( LOCK_FILE, ">$pid_file" );
830 print LOCK_FILE "$pid\n";
831 close( LOCK_FILE );
832 if( !$foreground ) {
833 exit( 0 )
834 };
835 }
837 daemon_log(" ", 1);
838 daemon_log("$0 started!", 1);
840 # delete old DBsqlite lock files
841 system('rm -f /tmp/gosa_si_lock*');
843 # connect to gosa-si job queue
844 my @job_col_names = ("id", "timestamp", "status", "result", "headertag", "targettag", "xmlmessage", "macaddress");
845 $job_db = GOSA::DBsqlite->new($job_queue_file_name);
846 $job_db->create_table('jobs', \@job_col_names);
848 # connect to known_clients_db
849 my @clients_col_names = ('hostname', 'status', 'hostkey', 'timestamp', 'macaddress', 'events');
850 $known_clients_db = GOSA::DBsqlite->new($known_clients_file_name);
851 $known_clients_db->create_table('known_clients', \@clients_col_names);
853 # connect to known_server_db
854 my @server_col_names = ('hostname', 'status', 'hostkey', 'timestamp');
855 $known_server_db = GOSA::DBsqlite->new($known_server_file_name);
856 $known_server_db->create_table('known_server', \@server_col_names);
858 # import all modules
859 &import_modules;
861 # check wether all modules are gosa-si valid passwd check
863 # create reading and writing vectors
864 my $rbits = my $wbits = my $ebits = "";
866 # add all module inputs to listening vector
867 while( my ($mod_name, $info) = each %$known_modules ) {
868 my ($input_address, $input_key, $input, $input_activ, $input_type) = @{$info};
869 vec($rbits, fileno $input, 1) = 1;
871 }
874 ## start arp fifo
875 #if ($no_arp > 0) {
876 # $arp_activ = "off";
877 #}
878 #my $my_fifo;
879 #if($arp_activ eq "on") {
880 # daemon_log(" ", 1);
881 # $my_fifo = &open_fifo($arp_fifo_path);
882 # if($my_fifo == 0) { die "fifo file disappeared\n" }
883 # sysopen($arp_fifo, $arp_fifo_path, O_RDWR) or die "can't read from $arp_fifo: $!" ;
884 #
885 # vec($rbits, fileno $arp_fifo, 1) = 1;
886 #}
887 #
889 ##################################
890 #everything ready, okay, lets start
891 ##################################
892 while(1) {
894 # add all handles from the childs
895 while ( my ($pid, $child_hash) = each %busy_child ) {
897 # check whether process still exists
898 my $exitus_pid = waitpid($pid, WNOHANG);
899 if($exitus_pid != 0) {
900 delete $busy_child{$pid};
901 next;
902 }
904 # add child fhd to the listener
905 my $fhd = $$child_hash{'pipe_rd'};
906 vec($rbits, fileno $fhd, 1) = 1;
907 }
909 my ($rout, $wout);
910 my $nf = select($rout=$rbits, $wout=$wbits, undef, $job_queue_timeout);
912 # error handling
913 if($nf < 0 ) {
914 }
917 # if($arp_activ eq "on" && vec($rout, fileno $arp_fifo, 1)) {
918 # my $in_msg = <$arp_fifo>;
919 # chomp($in_msg);
920 # print "arp_activ: msg: $in_msg\n";
921 # my $act_passwd = $known_daemons->{$bus_address}->{passwd};
922 # print "arp_activ: arp_passwd: $act_passwd\n";
923 #
924 # my $in_msg_hash = $xml->XMLin($in_msg, ForceArray=>1);
925 #
926 # my $target = &get_content_from_xml_hash($in_msg_hash, 'target');
927 #
928 # if ($target eq $server_address) {
929 # print "arp_activ: forward to server\n";
930 # my $arp_cipher = &create_ciphering($act_passwd);
931 # my $crypted_msg = &encrypt_msg($in_msg, $arp_cipher);
932 # &activating_child($crypted_msg, $server_ip);
933 # } else {
934 # print "arp_activ: send to bus\n";
935 # &send_msg_hash2address($in_msg_hash, $bus_address);
936 # }
937 # print "\n";
938 # }
941 # check input fhd of all modules
942 while ( my ($mod_name, $info) = each %$known_modules) {
943 my $input_fhd = @{$info}[2];
944 my $input_activ = @{$info}[3];
945 if (vec($rout, fileno $input_fhd, 1) && $input_activ eq 'on') {
946 daemon_log(" ", 1);
947 my $client = $input_fhd->accept();
948 my $other_end = getpeername($client);
949 if(not defined $other_end) {
950 daemon_log("client cannot be identified: $!");
951 } else {
952 my ($port, $iaddr) = unpack_sockaddr_in($other_end);
953 my $actual_ip = inet_ntoa($iaddr);
954 daemon_log("accept client at daemon socket from $actual_ip", 5);
955 my $in_msg = &read_from_socket($client);
956 if(defined $in_msg){
957 chomp($in_msg);
958 &activating_child($in_msg, $actual_ip, $client);
959 } else {
960 daemon_log("cannot read from $actual_ip", 5);
961 }
962 }
963 }
964 }
966 # check all processing childs whether they are finished ('done') or
967 while ( my ($pid, $child_hash) = each %busy_child ) {
968 my $fhd = $$child_hash{'pipe_rd'};
970 if (vec($rout, fileno $fhd, 1) ) {
971 daemon_log("process child $pid is ready to read", 5);
973 my $in_msg;
974 while (1) {
975 my $part_in_msg = <$fhd>;
976 if( $part_in_msg eq "ENDMESSAGE\n") {
977 last;
978 }
979 $in_msg .= $part_in_msg;
980 }
981 chomp($in_msg);
983 if (not defined $in_msg) {
984 next;
985 } elsif ($in_msg =~ "done") {
986 daemon_log("process child read: $in_msg", 7);
987 delete $busy_child{$pid};
988 $free_child{$pid} = $child_hash;
990 } else {
991 daemon_log("process child read:", 7);
992 daemon_log("\n$in_msg", 8);
993 # send computed answer back to connected client
994 my $act_client = $busy_child{$pid}{client_ref};
995 print $act_client $in_msg."\n";
996 delete $busy_child{$pid};
997 $free_child{$pid} = $child_hash;
999 }
1000 }
1001 }
1003 # check gosa job queue for jobs with executable timestamp
1004 my ($seconds, $minutes, $hours, $monthday, $month,
1005 $year, $weekday, $yearday, $sommertime) = localtime(time);
1006 $hours = $hours < 10 ? $hours = "0".$hours : $hours;
1007 $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
1008 $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
1009 $month+=1;
1010 $month = $month < 10 ? $month = "0".$month : $month;
1011 $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
1012 $year+=1900;
1013 my $timestamp = "$year$month$monthday$hours$minutes$seconds";
1016 my $res = $job_db->select_dbentry( { table=>$job_queue_table_name, status=>'waiting', timestamp=>$timestamp } );
1018 while( my ($id, $hit) = each %{$res} ) {
1020 my $jobdb_id = $hit->{id};
1021 my $macaddress = $hit->{macaddress};
1022 my $job_msg_hash = &transform_msg2hash($hit->{xmlmessage});
1023 my $out_msg_hash = $job_msg_hash;
1024 my $res_hash = $known_clients_db->select_dbentry( {table=>'known_clients', macaddress=>$macaddress} );
1025 # expect macaddress is unique!!!!!!
1026 my $target = $res_hash->{1}->{hostname};
1028 if (not defined $target) {
1029 &daemon_log("ERROR: no host found for mac address: $job_msg_hash->{mac}[0]", 1);
1030 &daemon_log("xml message: $hit->{xmlmessage}", 5);
1031 my $update_hash = { table=>$job_queue_table_name,
1032 update=> [ { status=>['error'], result=>["no host found for mac address"] } ],
1033 where=> [ { id=>[$jobdb_id] } ],
1034 };
1035 my $res = $job_db->update_dbentry($update_hash);
1037 next;
1038 }
1040 # add target
1041 &add_content2xml_hash($out_msg_hash, "target", $target);
1043 # add new header
1044 my $out_header = $job_msg_hash->{header}[0];
1045 $out_header =~ s/job_/gosa_/;
1046 delete $out_msg_hash->{header};
1047 &add_content2xml_hash($out_msg_hash, "header", $out_header);
1049 # add sqlite_id
1050 &add_content2xml_hash($out_msg_hash, "jobdb_id", $jobdb_id);
1052 my $out_msg = &create_xml_string($out_msg_hash);
1054 # encrypt msg as a GosaPackage module
1055 my $cipher = &create_ciphering($gosa_passwd);
1056 my $crypted_out_msg = &encrypt_msg($out_msg, $cipher);
1058 my $error = &send_msg_hash2address($out_msg_hash, "$gosa_ip:$gosa_port", $gosa_passwd);
1060 if ($error == 0) {
1061 my $sql = "UPDATE '$job_queue_table_name' SET status='processing', targettag='$target' WHERE id='$jobdb_id'";
1062 my $res = $job_db->exec_statement($sql);
1063 } else {
1064 my $update_hash = { table=>$job_queue_table_name,
1065 update=> [ { status=>'error' } ],
1066 where=> [ { id=>$jobdb_id } ],
1067 };
1068 my $res = $job_db->update_dbentry($update_hash);
1069 }
1071 }
1074 }