37833524537e8f8fc6756738997871628a6257a1
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, "0.0.0.0"],
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, "0.0.0.0"],
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!\n";
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 <= $verbose){
207 my ($seconds, $minutes, $hours, $monthday, $month,
208 $year, $weekday, $yearday, $sommertime) = localtime(time);
209 $hours = $hours < 10 ? $hours = "0".$hours : $hours;
210 $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
211 $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
212 my @monthnames = ("Jan", "Feb", "Mar", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
213 $month = $monthnames[$month];
214 $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
215 $year+=1900;
216 my $name = $0;
217 $name =~ s/\.\///;
219 print LOG_HANDLE "\n$month $monthday $hours:$minutes:$seconds $name $msg";
220 }
221 close( LOG_HANDLE );
222 }
223 #log into syslog
224 # my ($msg, $level, $facility) = @_;
225 # if(not defined $msg) {return}
226 # if(not defined $level) {$level = "info"}
227 # if(not defined $facility) {$facility = "LOG_DAEMON"}
228 # openlog($0, "pid,cons,", $facility);
229 # syslog($level, $msg);
230 # closelog;
231 # return;
232 }
235 #=== FUNCTION ================================================================
236 # NAME: check_cmdline_param
237 # PARAMETERS: nothing
238 # RETURNS: nothing
239 # DESCRIPTION: validates commandline parameter
240 #===============================================================================
241 sub check_cmdline_param () {
242 my $err_config;
243 my $err_counter = 0;
244 if( not defined( $cfg_file)) {
245 #$err_config = "please specify a config file";
246 #$err_counter += 1;
247 my $cwd = getcwd;
248 my $name = "/etc/gosa-si/server.conf";
249 $cfg_file = File::Spec->catfile( $cwd, $name );
250 }
251 if( $err_counter > 0 ) {
252 &usage( "", 1 );
253 if( defined( $err_config)) { print STDERR "$err_config\n"}
254 print STDERR "\n";
255 exit( -1 );
256 }
257 }
260 #=== FUNCTION ================================================================
261 # NAME: check_pid
262 # PARAMETERS: nothing
263 # RETURNS: nothing
264 # DESCRIPTION: handels pid processing
265 #===============================================================================
266 sub check_pid {
267 $pid = -1;
268 # Check, if we are already running
269 if( open(LOCK_FILE, "<$pid_file") ) {
270 $pid = <LOCK_FILE>;
271 if( defined $pid ) {
272 chomp( $pid );
273 if( -f "/proc/$pid/stat" ) {
274 my($stat) = `cat /proc/$pid/stat` =~ m/$pid \((.+)\).*/;
275 if( $0 eq $stat ) {
276 close( LOCK_FILE );
277 exit -1;
278 }
279 }
280 }
281 close( LOCK_FILE );
282 unlink( $pid_file );
283 }
285 # create a syslog msg if it is not to possible to open PID file
286 if (not sysopen(LOCK_FILE, $pid_file, O_WRONLY|O_CREAT|O_EXCL, 0644)) {
287 my($msg) = "Couldn't obtain lockfile '$pid_file' ";
288 if (open(LOCK_FILE, '<', $pid_file)
289 && ($pid = <LOCK_FILE>))
290 {
291 chomp($pid);
292 $msg .= "(PID $pid)\n";
293 } else {
294 $msg .= "(unable to read PID)\n";
295 }
296 if( ! ($foreground) ) {
297 openlog( $0, "cons,pid", "daemon" );
298 syslog( "warning", $msg );
299 closelog();
300 }
301 else {
302 print( STDERR " $msg " );
303 }
304 exit( -1 );
305 }
306 }
308 #=== FUNCTION ================================================================
309 # NAME: import_modules
310 # PARAMETERS: module_path - string - abs. path to the directory the modules
311 # are stored
312 # RETURNS: nothing
313 # DESCRIPTION: each file in module_path which ends with '.pm' is imported by
314 # "require 'file';"
315 #===============================================================================
316 sub import_modules {
317 daemon_log(" ", 1);
319 if (not -e $modules_path) {
320 daemon_log("ERROR: cannot find directory or directory is not readable: $modules_path", 1);
321 }
323 opendir (DIR, $modules_path) or die "ERROR while loading modules from directory $modules_path : $!\n";
324 while (defined (my $file = readdir (DIR))) {
325 if (not $file =~ /(\S*?).pm$/) {
326 next;
327 }
328 eval { require $file; };
329 if ($@) {
330 daemon_log("ERROR: gosa-si-server could not load module $file", 1);
331 daemon_log("$@", 5);
332 } else {
333 my $mod_name = $1;
334 my $info = eval($mod_name.'::get_module_info()');
335 my ($input_address, $input_key, $input, $input_active, $input_type) = @{$info};
336 $known_modules->{$mod_name} = $info;
338 daemon_log("module $mod_name loaded", 1);
339 }
340 }
342 # for debugging
343 #while ( my ($module, $tag_hash) = each(%$known_modules)) {
344 # print "\tmodule: $module"."\n";
345 # print "\ttags: ".join(", ", keys(%$tag_hash))."\n";
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 $SIG{INT} = \&sig_int_handler;
366 #=== FUNCTION ================================================================
367 # NAME: activating_child
368 # PARAMETERS: msg - string - incoming message
369 # host - string - host from which the incomming message comes
370 # RETURNS: nothing
371 # DESCRIPTION: handels the distribution of incoming messages to working childs
372 #===============================================================================
373 sub activating_child {
374 my ($msg, $host, $client) = @_;
375 my $child = &get_processing_child();
376 my $pipe_wr = $$child{'pipe_wr'};
377 my $pipe_rd = $$child{'pipe_rd'};
378 $$child{client_ref} = $client;
380 daemon_log("activating: childpid:$$child{'pid'}", 5);
382 print $pipe_wr $msg.".".$host."\n";
384 return;
385 }
388 #=== FUNCTION ================================================================
389 # NAME: get_processing_child
390 # PARAMETERS: nothing
391 # RETURNS: child - hash - holding the process id and the references to the pipe
392 # handles pipe_wr and pipe_rd
393 # DESCRIPTION: handels the forking, reactivating and keeping alive tasks
394 #===============================================================================
395 sub get_processing_child {
396 my $child;
398 while(my ($key, $val) = each(%free_child)) {
399 my $exitus_pid = waitpid($key, WNOHANG);
400 if($exitus_pid != 0) {
401 delete $free_child{$key};
402 }
403 daemon_log("free child:$key", 5);
404 }
405 # check @free_child and @busy_child
406 my $free_len = scalar(keys(%free_child));
407 my $busy_len = scalar(keys(%busy_child));
408 daemon_log("free children $free_len, busy children $busy_len", 5);
410 # if there is a free child, let the child work
411 if($free_len > 0){
412 my @keys = keys(%free_child);
413 $child = $free_child{$keys[0]};
414 if(defined $child) {
415 $busy_child{$$child{'pid'}} = $child ;
416 delete $free_child{$$child{'pid'}};
417 }
418 return $child;
419 }
421 # no free child, try to fork another one
422 if($free_len + $busy_len < $child_max) {
424 daemon_log("not enough children, create a new one", 5);
426 # New pipes for communication
427 my( $PARENT_wr, $PARENT_rd );
428 my( $CHILD_wr, $CHILD_rd );
429 pipe( $CHILD_rd, $PARENT_wr );
430 pipe( $PARENT_rd, $CHILD_wr );
431 $PARENT_wr->autoflush(1);
432 $CHILD_wr->autoflush(1);
434 ############
435 # fork child
436 ############
437 my $child_pid = fork();
439 #CHILD
440 if($child_pid == 0) {
441 # Close unused pipes
442 close( $CHILD_rd );
443 close( $CHILD_wr );
444 while( 1 ) {
445 my $rbits = "";
446 vec( $rbits, fileno $PARENT_rd , 1 ) = 1;
447 my $nf = select($rbits, undef, undef, $child_timeout);
448 if($nf < 0 ) {
449 die "select(): $!\n";
450 } elsif (! $nf) {
451 # if already child_min childs are alive, then leave loop
452 $free_len = scalar(keys(%free_child));
453 $busy_len = scalar(keys(%busy_child));
454 if($free_len + $busy_len >= $child_min) {
455 last;
456 } else {
457 redo;
458 }
459 }
461 # a job for a child arise
462 if ( vec $rbits, fileno $PARENT_rd, 1 ) {
463 # read everything from pipe
464 my $msg = "";
465 $PARENT_rd->blocking(0);
466 while(1) {
467 my $read = <$PARENT_rd>;
468 if(not defined $read) { last}
469 $msg .= $read;
470 }
472 ######################################
473 # forward msg to all imported modules
474 no strict "refs";
475 my $answer;
476 my %act_modules = %$known_modules;
477 while( my ($module, $info) = each(%act_modules)) {
478 my $tmp = &{ $module."::process_incoming_msg" }($msg);
479 if (defined $tmp) {
480 $answer = $tmp;
481 }
482 }
484 #&print_known_daemons();
485 #&print_known_clients();
487 daemon_log("processing of msg finished", 5);
489 if (defined $answer) {
490 print $PARENT_wr $answer."\n";
491 my $len_answer = length $answer;
492 daemon_log("with answer: length of answer: $len_answer", 7);
493 daemon_log("\n$answer", 7);
494 } else {
495 print $PARENT_wr "done"."\n";
496 daemon_log(" ", 7);
497 }
498 redo;
499 }
500 }
501 # childs leaving the loop are allowed to die
502 exit(0);
505 #PARENT
506 } else {
507 # Close unused pipes
508 close( $PARENT_rd );
509 close( $PARENT_wr );
511 # add child to child alive hash
512 my %child_hash = (
513 'pid' => $child_pid,
514 'pipe_wr' => $CHILD_wr,
515 'pipe_rd' => $CHILD_rd,
516 'client_ref' => "",
517 );
519 $child = \%child_hash;
520 $busy_child{$$child{'pid'}} = $child;
521 return $child;
522 }
523 }
524 }
527 #=== FUNCTION ================================================================
528 # NAME: read_from_socket
529 # PARAMETERS: socket fh -
530 # RETURNS: result string - readed characters from socket
531 # DESCRIPTION: reads data from socket in 16 byte steps
532 #===============================================================================
533 sub read_from_socket {
534 my ($socket) = @_;
535 my $result = "";
537 $socket->blocking(1);
538 $result = <$socket>;
540 $socket->blocking(0);
541 while ( my $char = <$socket> ) {
542 if (not defined $char) { last }
543 $result .= $char;
544 }
546 return $result;
547 }
550 #=== FUNCTION ================================================================
551 # NAME: print_known_daemons
552 # PARAMETERS: nothing
553 # RETURNS: nothing
554 # DESCRIPTION: nomen est omen
555 #===============================================================================
556 #sub print_known_daemons {
557 # my ($tmp) = @_ ;
558 # print "####################################\n";
559 # print "# status of known_daemons\n";
560 # $shmda->shlock(LOCK_EX);
561 # my @hosts = keys %$known_daemons;
562 # foreach my $host (@hosts) {
563 # my $status = $known_daemons->{$host}->{status} ;
564 # my $passwd = $known_daemons->{$host}->{passwd};
565 # my $timestamp = $known_daemons->{$host}->{timestamp};
566 # print "$host\n";
567 # print "\tstatus: $status\n";
568 # print "\tpasswd: $passwd\n";
569 # print "\ttimestamp: $timestamp\n";
570 # }
571 # $shmda->shunlock(LOCK_EX);
572 # print "####################################\n";
573 # return;
574 #}
577 #=== FUNCTION ================================================================
578 # NAME: create_known_daemon
579 # PARAMETERS: hostname - string - key for the hash known_daemons
580 # RETURNS: nothing
581 # DESCRIPTION: creates a dummy entry for hostname in known_daemons
582 #===============================================================================
583 #sub create_known_daemon {
584 # my ($hostname) = @_;
585 # $shmda->shlock(LOCK_EX);
586 # $known_daemons->{$hostname} = {};
587 # $known_daemons->{$hostname}->{status} = "none";
588 # $known_daemons->{$hostname}->{passwd} = "none";
589 # $known_daemons->{$hostname}->{timestamp} = "none";
590 # $shmda->shunlock(LOCK_EX);
591 # return;
592 #}
595 #=== FUNCTION ================================================================
596 # NAME: add_content2known_daemons
597 # PARAMETERS: hostname - string - ip address and port of host (required)
598 # status - string - (optional)
599 # passwd - string - (optional)
600 # mac_address - string - mac address of host (optional)
601 # RETURNS: nothing
602 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
603 #===============================================================================
604 #sub add_content2known_daemons {
605 # my $arg = {
606 # hostname => undef, status => undef, passwd => undef,
607 # mac_address => undef, events => undef,
608 # @_ };
609 # my $hostname = $arg->{hostname};
610 # my $status = $arg->{status};
611 # my $passwd = $arg->{passwd};
612 # my $mac_address = $arg->{mac_address};
613 # my $events = $arg->{events};
614 #
615 # if (not defined $hostname) {
616 # daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
617 # return;
618 # }
619 #
620 # my ($seconds, $minutes, $hours, $monthday, $month,
621 # $year, $weekday, $yearday, $sommertime) = localtime(time);
622 # $hours = $hours < 10 ? $hours = "0".$hours : $hours;
623 # $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
624 # $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
625 # $month+=1;
626 # $month = $month < 10 ? $month = "0".$month : $month;
627 # $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
628 # $year+=1900;
629 # my $t = "$year$month$monthday$hours$minutes$seconds";
630 #
631 # $shmda->shlock(LOCK_EX);
632 # if (defined $status) {
633 # $known_daemons->{$hostname}->{status} = $status;
634 # }
635 # if (defined $passwd) {
636 # $known_daemons->{$hostname}->{passwd} = $passwd;
637 # }
638 # if (defined $mac_address) {
639 # $known_daemons->{$hostname}->{mac_address} = $mac_address;
640 # }
641 # if (defined $events) {
642 # $known_daemons->{$hostname}->{events} = $events;
643 # }
644 # $known_daemons->{$hostname}->{timestamp} = $t;
645 # $shmda->shlock(LOCK_EX);
646 # return;
647 #}
650 #=== FUNCTION ================================================================
651 # NAME: update_known_daemons
652 # PARAMETERS: hostname - string - ip address and port of host (required)
653 # status - string - (optional)
654 # passwd - string - (optional)
655 # client - string - ip address and port of client (optional)
656 # RETURNS: nothing
657 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
658 #===============================================================================
659 #sub update_known_daemons {
660 # my $arg = {
661 # hostname => undef, status => undef, passwd => undef,
662 # @_ };
663 # my $hostname = $arg->{hostname};
664 # my $status = $arg->{status};
665 # my $passwd = $arg->{passwd};
666 #
667 # if (not defined $hostname) {
668 # daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
669 # return;
670 # }
671 #
672 # my ($seconds, $minutes, $hours, $monthday, $month,
673 # $year, $weekday, $yearday, $sommertime) = localtime(time);
674 # $hours = $hours < 10 ? $hours = "0".$hours : $hours;
675 # $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
676 # $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
677 # $month+=1;
678 # $month = $month < 10 ? $month = "0".$month : $month;
679 # $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
680 # $year+=1900;
681 # my $t = "$year$month$monthday$hours$minutes$seconds";
682 #
683 # $shmda->shlock(LOCK_EX);
684 # if (defined $status) {
685 # $known_daemons->{$hostname}->{status} = $status;
686 # }
687 # if (defined $passwd) {
688 # $known_daemons->{$hostname}->{passwd} = $passwd;
689 # }
690 # $known_daemons->{$hostname}->{timestamp} = $t;
691 # $shmda->shunlock(LOCK_EX);
692 # return;
693 #}
696 #=== FUNCTION ================================================================
697 # NAME: print_known_clients
698 # PARAMETERS: nothing
699 # RETURNS: nothing
700 # DESCRIPTION: nomen est omen
701 #===============================================================================
702 #sub print_known_clients {
703 #
704 # print "####################################\n";
705 # print "# status of known_clients\n";
706 # $shmcl->shlock(LOCK_EX);
707 # my @hosts = keys %$known_clients;
708 # if (@hosts) {
709 # foreach my $host (@hosts) {
710 # my $status = $known_clients->{$host}->{status} ;
711 # my $passwd = $known_clients->{$host}->{passwd};
712 # my $timestamp = $known_clients->{$host}->{timestamp};
713 # my $mac_address = $known_clients->{$host}->{mac_address};
714 # my $events = $known_clients->{$host}->{events};
715 # print "$host\n";
716 # print "\tstatus: $status\n";
717 # print "\tpasswd: $passwd\n";
718 # print "\ttimestamp: $timestamp\n";
719 # print "\tmac_address: $mac_address\n";
720 # print "\tevents: $events\n";
721 # }
722 # }
723 # $shmcl->shunlock(LOCK_EX);
724 # print "####################################\n";
725 # return;
726 #}
729 #=== FUNCTION ================================================================
730 # NAME: create_known_client
731 # PARAMETERS: hostname - string - key for the hash known_clients
732 # RETURNS: nothing
733 # DESCRIPTION: creates a dummy entry for hostname in known_clients
734 #===============================================================================
735 sub create_known_client {
736 my ($hostname) = @_;
738 my $entry = { table=>'known_clients',
739 hostname=>$hostname,
740 status=>'none',
741 hostkey=>'none',
742 timestamp=>'none',
743 macaddress=>'none',
744 events=>'none',
745 };
746 my $res = $known_clients_db->add_dbentry($entry);
747 if ($res > 0) {
748 daemon_log("ERROR: cannot add entry to known_clients.db: $res", 1);
749 }
751 return;
752 }
755 #=== FUNCTION ================================================================
756 # NAME: add_content2known_clients
757 # PARAMETERS: hostname - string - ip address and port of host (required)
758 # status - string - (optional)
759 # passwd - string - (optional)
760 # mac_address - string - (optional)
761 # events - string - event of client, executable skripts
762 # under /etc/gosac/events
763 # RETURNS: nothing
764 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
765 #===============================================================================
766 #sub update_known_clients {
767 # my $arg = {
768 # hostname => undef, status => undef, hostkey => undef,
769 # macaddress => undef, events => undef, timestamp=>undef,
770 # @_ };
771 # my $hostname = $arg->{hostname};
772 # my $status = $arg->{status};
773 # my $hostkey = $arg->{hostkey};
774 # my $macaddress = $arg->{macaddress};
775 # my $events = $arg->{events};
776 # my $timestamp = $arg->{timestamp};
777 #
778 # if (not defined $hostname) {
779 # daemon_log("ERROR: function add_content2known_clients is not invoked with requiered parameter 'hostname'", 1);
780 # return;
781 # }
782 #
783 # my $change_entry = { table=>'known_clients',
784 # where=>'hostname',
785 # timestamp=>&get_time,
786 # };
787 #
788 #
789 # if (defined $status) {
790 # $change_entry->{status} = $status;
791 # }
792 # if (defined $hostkey) {
793 # $change_entry->{hostkey} = $hostkey;
794 # }
795 # if (defined $macaddress) {
796 # $change_entry->{macaddress} = $macaddress;
797 # }
798 # if (defined $events) {
799 # $change_entry->{events} = $events;
800 # }
801 #
802 # $known_clients->change_dbentry($change_entry);
803 # return;
804 #}
807 #=== FUNCTION ================================================================
808 # NAME:
809 # PARAMETERS:
810 # RETURNS:
811 # DESCRIPTION:
812 #===============================================================================
813 #sub clean_up_known_clients {
814 # my ($address) = @_ ;
815 #
816 # if (not exists $known_clients->{$address}) {
817 # daemon_log("cannot prune known_clients from $address, client not known", 5);
818 # return;
819 # }
820 #
821 # delete $known_clients->{$address};
822 #
823 # # send bus a msg that address was deleted from known_clients
824 # my $out_hash = &create_xml_hash('delete_client', $server_address, $bus_address, $address);
825 # &send_msg_hash2bus($out_hash);
826 #
827 # daemon_log("client $address deleted from known_clients because of multiple down time", 3);
828 # return;
829 #}
832 #=== FUNCTION ================================================================
833 # NAME: update_known_clients
834 # PARAMETERS: hostname - string - ip address and port of host (required)
835 # status - string - (optional)
836 # passwd - string - (optional)
837 # client - string - ip address and port of client (optional)
838 # RETURNS: nothing
839 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
840 #===============================================================================
841 #sub update_known_clients {
842 # my $arg = {
843 # hostname => undef, status => undef, passwd => undef,
844 # mac_address => undef, events => undef,
845 # @_ };
846 # my $hostname = $arg->{hostname};
847 # my $status = $arg->{status};
848 # my $passwd = $arg->{passwd};
849 # my $mac_address = $arg->{mac_address};
850 # my $events = $arg->{events};
851 #
852 # if (not defined $hostname) {
853 # daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
854 # return;
855 # }
856 #
857 # my ($seconds, $minutes, $hours, $monthday, $month,
858 # $year, $weekday, $yearday, $sommertime) = localtime(time);
859 # $hours = $hours < 10 ? $hours = "0".$hours : $hours;
860 # $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
861 # $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
862 # $month+=1;
863 # $month = $month < 10 ? $month = "0".$month : $month;
864 # $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
865 # $year+=1900;
866 # my $t = "$year$month$monthday$hours$minutes$seconds";
867 #
868 # if (defined $status) {
869 # $known_clients->{$hostname}->{status} = $status;
870 # }
871 # if (defined $passwd) {
872 # $known_clients->{$hostname}->{passwd} = $passwd;
873 # }
874 # if (defined $mac_address) {
875 # $known_clients->{$hostname}->{mac_address} = $mac_address;
876 # }
877 # if (defined $events) {
878 # $known_clients->{$hostname}->{events} = $events;
879 # }
880 # $known_clients_db->{$hostname}->{timestamp} = $t;
881 # return;
882 #}
890 #==== MAIN = main ==============================================================
892 # parse commandline options
893 Getopt::Long::Configure( "bundling" );
894 GetOptions("h|help" => \&usage,
895 "c|config=s" => \$cfg_file,
896 "f|foreground" => \$foreground,
897 "v|verbose+" => \$verbose,
898 "no-bus+" => \$no_bus,
899 "no-arp+" => \$no_arp,
900 );
902 # read and set config parameters
903 &check_cmdline_param ;
904 &read_configfile;
905 &check_pid;
907 $SIG{CHLD} = 'IGNORE';
909 # forward error messages to logfile
910 if( ! $foreground ) {
911 open(STDERR, '>>', $log_file);
912 open(STDOUT, '>>', $log_file);
913 }
915 # Just fork, if we are not in foreground mode
916 if( ! $foreground ) {
917 chdir '/' or die "Can't chdir to /: $!";
918 $pid = fork;
919 setsid or die "Can't start a new session: $!";
920 umask 0;
921 } else {
922 $pid = $$;
923 }
925 # Do something useful - put our PID into the pid_file
926 if( 0 != $pid ) {
927 open( LOCK_FILE, ">$pid_file" );
928 print LOCK_FILE "$pid\n";
929 close( LOCK_FILE );
930 if( !$foreground ) {
931 exit( 0 )
932 };
933 }
935 daemon_log(" ", 1);
936 daemon_log("$0 started!", 1);
939 # connect to gosa-si job queue
940 my @job_col_names = ("id", "timestamp", "status", "result", "headertag", "targettag", "xmlmessage", "macaddress");
941 $job_db = GOSA::DBsqlite->new($job_queue_file_name);
942 $job_db->create_table('jobs', \@job_col_names);
944 # connect to known_clients_db
945 my @clients_col_names = ('hostname', 'status', 'hostkey', 'timestamp', 'macaddress', 'events');
946 $known_clients_db = GOSA::DBsqlite->new($known_clients_file_name);
947 $known_clients_db->create_table('known_clients', \@clients_col_names);
949 # connect to known_server_db
950 my @server_col_names = ('hostname', 'status', 'hostkey', 'timestamp');
951 $known_server_db = GOSA::DBsqlite->new($known_server_file_name);
952 $known_server_db->create_table('known_server', \@server_col_names);
954 # import all modules
955 &import_modules;
957 # check wether all modules are gosa-si valid passwd check
959 # create reading and writing vectors
960 my $rbits = my $wbits = my $ebits = "";
962 # add all module inputs to listening vector
963 while( my ($mod_name, $info) = each %$known_modules ) {
964 my ($input_address, $input_key, $input, $input_activ, $input_type) = @{$info};
965 vec($rbits, fileno $input, 1) = 1;
967 }
970 ## start arp fifo
971 #if ($no_arp > 0) {
972 # $arp_activ = "off";
973 #}
974 #my $my_fifo;
975 #if($arp_activ eq "on") {
976 # daemon_log(" ", 1);
977 # $my_fifo = &open_fifo($arp_fifo_path);
978 # if($my_fifo == 0) { die "fifo file disappeared\n" }
979 # sysopen($arp_fifo, $arp_fifo_path, O_RDWR) or die "can't read from $arp_fifo: $!" ;
980 #
981 # vec($rbits, fileno $arp_fifo, 1) = 1;
982 #}
983 #
985 ##################################
986 #everything ready, okay, lets start
987 ##################################
988 while(1) {
990 # add all handles from the childs
991 while ( my ($pid, $child_hash) = each %busy_child ) {
993 # check whether process still exists
994 my $exitus_pid = waitpid($pid, WNOHANG);
995 if($exitus_pid != 0) {
996 delete $busy_child{$pid};
997 next;
998 }
1000 # add child fhd to the listener
1001 my $fhd = $$child_hash{'pipe_rd'};
1002 vec($rbits, fileno $fhd, 1) = 1;
1003 }
1005 my ($rout, $wout);
1006 my $nf = select($rout=$rbits, $wout=$wbits, undef, $job_queue_timeout);
1008 # error handling
1009 if($nf < 0 ) {
1010 }
1013 # if($arp_activ eq "on" && vec($rout, fileno $arp_fifo, 1)) {
1014 # my $in_msg = <$arp_fifo>;
1015 # chomp($in_msg);
1016 # print "arp_activ: msg: $in_msg\n";
1017 # my $act_passwd = $known_daemons->{$bus_address}->{passwd};
1018 # print "arp_activ: arp_passwd: $act_passwd\n";
1019 #
1020 # my $in_msg_hash = $xml->XMLin($in_msg, ForceArray=>1);
1021 #
1022 # my $target = &get_content_from_xml_hash($in_msg_hash, 'target');
1023 #
1024 # if ($target eq $server_address) {
1025 # print "arp_activ: forward to server\n";
1026 # my $arp_cipher = &create_ciphering($act_passwd);
1027 # my $crypted_msg = &encrypt_msg($in_msg, $arp_cipher);
1028 # &activating_child($crypted_msg, $server_ip);
1029 # } else {
1030 # print "arp_activ: send to bus\n";
1031 # &send_msg_hash2address($in_msg_hash, $bus_address);
1032 # }
1033 # print "\n";
1034 # }
1037 # check input fhd of all modules
1038 while ( my ($mod_name, $info) = each %$known_modules) {
1039 my $input_fhd = @{$info}[2];
1040 my $input_activ = @{$info}[3];
1041 if (vec($rout, fileno $input_fhd, 1) && $input_activ eq 'on') {
1042 daemon_log(" ", 1);
1043 my $client = $input_fhd->accept();
1044 my $other_end = getpeername($client);
1045 if(not defined $other_end) {
1046 daemon_log("client cannot be identified: $!");
1047 } else {
1048 my ($port, $iaddr) = unpack_sockaddr_in($other_end);
1049 my $actual_ip = inet_ntoa($iaddr);
1050 daemon_log("accept client at daemon socket from $actual_ip", 5);
1051 my $in_msg = &read_from_socket($client);
1052 if(defined $in_msg){
1053 chomp($in_msg);
1054 &activating_child($in_msg, $actual_ip, $client);
1055 } else {
1056 daemon_log("cannot read from $actual_ip", 5);
1057 }
1058 }
1059 }
1060 }
1062 # check all processing childs whether they are finished ('done') or
1063 while ( my ($pid, $child_hash) = each %busy_child ) {
1064 my $fhd = $$child_hash{'pipe_rd'};
1066 if (vec($rout, fileno $fhd, 1) ) {
1067 daemon_log("process child $pid is ready to read", 5);
1069 $fhd->blocking(1);
1070 my $in_msg = <$fhd>;
1071 $fhd->blocking(0);
1072 my $part_in_msg;
1073 while ($part_in_msg = <$fhd>) {
1074 if (not defined $part_in_msg) {
1075 last;
1076 }
1077 $in_msg .= $part_in_msg;
1078 }
1079 chomp($in_msg);
1081 daemon_log("process child read: $in_msg", 7);
1082 daemon_log("\n$in_msg", 7);
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 }