f0b59ce9c83c195429b2270e6d2940a0f8808862
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 }
489 #&print_known_daemons();
490 #&print_known_clients();
492 daemon_log("processing of msg finished", 5);
494 if (defined $answer) {
495 print $PARENT_wr $answer."\n";
496 print $PARENT_wr "ENDMESSAGE\n";
497 my $len_answer = length $answer;
498 daemon_log("with answer: length of answer: $len_answer", 7);
499 daemon_log("\n$answer", 7);
500 } else {
501 print $PARENT_wr "done"."\n";
502 daemon_log(" ", 7);
503 }
504 redo;
505 }
506 }
507 # childs leaving the loop are allowed to die
508 exit(0);
511 #PARENT
512 } else {
513 # Close unused pipes
514 close( $PARENT_rd );
515 close( $PARENT_wr );
517 # add child to child alive hash
518 my %child_hash = (
519 'pid' => $child_pid,
520 'pipe_wr' => $CHILD_wr,
521 'pipe_rd' => $CHILD_rd,
522 'client_ref' => "",
523 );
525 $child = \%child_hash;
526 $busy_child{$$child{'pid'}} = $child;
527 return $child;
528 }
529 }
530 }
533 #=== FUNCTION ================================================================
534 # NAME: read_from_socket
535 # PARAMETERS: socket fh -
536 # RETURNS: result string - readed characters from socket
537 # DESCRIPTION: reads data from socket in 16 byte steps
538 #===============================================================================
539 sub read_from_socket {
540 my ($socket) = @_;
541 my $result = "";
543 $socket->blocking(1);
544 $result = <$socket>;
546 $socket->blocking(0);
547 while ( my $char = <$socket> ) {
548 if (not defined $char) { last }
549 $result .= $char;
550 }
552 return $result;
553 }
556 #=== FUNCTION ================================================================
557 # NAME: print_known_daemons
558 # PARAMETERS: nothing
559 # RETURNS: nothing
560 # DESCRIPTION: nomen est omen
561 #===============================================================================
562 #sub print_known_daemons {
563 # my ($tmp) = @_ ;
564 # print "####################################\n";
565 # print "# status of known_daemons\n";
566 # $shmda->shlock(LOCK_EX);
567 # my @hosts = keys %$known_daemons;
568 # foreach my $host (@hosts) {
569 # my $status = $known_daemons->{$host}->{status} ;
570 # my $passwd = $known_daemons->{$host}->{passwd};
571 # my $timestamp = $known_daemons->{$host}->{timestamp};
572 # print "$host\n";
573 # print "\tstatus: $status\n";
574 # print "\tpasswd: $passwd\n";
575 # print "\ttimestamp: $timestamp\n";
576 # }
577 # $shmda->shunlock(LOCK_EX);
578 # print "####################################\n";
579 # return;
580 #}
583 #=== FUNCTION ================================================================
584 # NAME: create_known_daemon
585 # PARAMETERS: hostname - string - key for the hash known_daemons
586 # RETURNS: nothing
587 # DESCRIPTION: creates a dummy entry for hostname in known_daemons
588 #===============================================================================
589 #sub create_known_daemon {
590 # my ($hostname) = @_;
591 # $shmda->shlock(LOCK_EX);
592 # $known_daemons->{$hostname} = {};
593 # $known_daemons->{$hostname}->{status} = "none";
594 # $known_daemons->{$hostname}->{passwd} = "none";
595 # $known_daemons->{$hostname}->{timestamp} = "none";
596 # $shmda->shunlock(LOCK_EX);
597 # return;
598 #}
601 #=== FUNCTION ================================================================
602 # NAME: add_content2known_daemons
603 # PARAMETERS: hostname - string - ip address and port of host (required)
604 # status - string - (optional)
605 # passwd - string - (optional)
606 # mac_address - string - mac address of host (optional)
607 # RETURNS: nothing
608 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
609 #===============================================================================
610 #sub add_content2known_daemons {
611 # my $arg = {
612 # hostname => undef, status => undef, passwd => undef,
613 # mac_address => undef, events => undef,
614 # @_ };
615 # my $hostname = $arg->{hostname};
616 # my $status = $arg->{status};
617 # my $passwd = $arg->{passwd};
618 # my $mac_address = $arg->{mac_address};
619 # my $events = $arg->{events};
620 #
621 # if (not defined $hostname) {
622 # daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
623 # return;
624 # }
625 #
626 # my ($seconds, $minutes, $hours, $monthday, $month,
627 # $year, $weekday, $yearday, $sommertime) = localtime(time);
628 # $hours = $hours < 10 ? $hours = "0".$hours : $hours;
629 # $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
630 # $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
631 # $month+=1;
632 # $month = $month < 10 ? $month = "0".$month : $month;
633 # $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
634 # $year+=1900;
635 # my $t = "$year$month$monthday$hours$minutes$seconds";
636 #
637 # $shmda->shlock(LOCK_EX);
638 # if (defined $status) {
639 # $known_daemons->{$hostname}->{status} = $status;
640 # }
641 # if (defined $passwd) {
642 # $known_daemons->{$hostname}->{passwd} = $passwd;
643 # }
644 # if (defined $mac_address) {
645 # $known_daemons->{$hostname}->{mac_address} = $mac_address;
646 # }
647 # if (defined $events) {
648 # $known_daemons->{$hostname}->{events} = $events;
649 # }
650 # $known_daemons->{$hostname}->{timestamp} = $t;
651 # $shmda->shlock(LOCK_EX);
652 # return;
653 #}
656 #=== FUNCTION ================================================================
657 # NAME: update_known_daemons
658 # PARAMETERS: hostname - string - ip address and port of host (required)
659 # status - string - (optional)
660 # passwd - string - (optional)
661 # client - string - ip address and port of client (optional)
662 # RETURNS: nothing
663 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
664 #===============================================================================
665 #sub update_known_daemons {
666 # my $arg = {
667 # hostname => undef, status => undef, passwd => undef,
668 # @_ };
669 # my $hostname = $arg->{hostname};
670 # my $status = $arg->{status};
671 # my $passwd = $arg->{passwd};
672 #
673 # if (not defined $hostname) {
674 # daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
675 # return;
676 # }
677 #
678 # my ($seconds, $minutes, $hours, $monthday, $month,
679 # $year, $weekday, $yearday, $sommertime) = localtime(time);
680 # $hours = $hours < 10 ? $hours = "0".$hours : $hours;
681 # $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
682 # $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
683 # $month+=1;
684 # $month = $month < 10 ? $month = "0".$month : $month;
685 # $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
686 # $year+=1900;
687 # my $t = "$year$month$monthday$hours$minutes$seconds";
688 #
689 # $shmda->shlock(LOCK_EX);
690 # if (defined $status) {
691 # $known_daemons->{$hostname}->{status} = $status;
692 # }
693 # if (defined $passwd) {
694 # $known_daemons->{$hostname}->{passwd} = $passwd;
695 # }
696 # $known_daemons->{$hostname}->{timestamp} = $t;
697 # $shmda->shunlock(LOCK_EX);
698 # return;
699 #}
702 #=== FUNCTION ================================================================
703 # NAME: print_known_clients
704 # PARAMETERS: nothing
705 # RETURNS: nothing
706 # DESCRIPTION: nomen est omen
707 #===============================================================================
708 #sub print_known_clients {
709 #
710 # print "####################################\n";
711 # print "# status of known_clients\n";
712 # $shmcl->shlock(LOCK_EX);
713 # my @hosts = keys %$known_clients;
714 # if (@hosts) {
715 # foreach my $host (@hosts) {
716 # my $status = $known_clients->{$host}->{status} ;
717 # my $passwd = $known_clients->{$host}->{passwd};
718 # my $timestamp = $known_clients->{$host}->{timestamp};
719 # my $mac_address = $known_clients->{$host}->{mac_address};
720 # my $events = $known_clients->{$host}->{events};
721 # print "$host\n";
722 # print "\tstatus: $status\n";
723 # print "\tpasswd: $passwd\n";
724 # print "\ttimestamp: $timestamp\n";
725 # print "\tmac_address: $mac_address\n";
726 # print "\tevents: $events\n";
727 # }
728 # }
729 # $shmcl->shunlock(LOCK_EX);
730 # print "####################################\n";
731 # return;
732 #}
735 #=== FUNCTION ================================================================
736 # NAME: create_known_client
737 # PARAMETERS: hostname - string - key for the hash known_clients
738 # RETURNS: nothing
739 # DESCRIPTION: creates a dummy entry for hostname in known_clients
740 #===============================================================================
741 sub create_known_client {
742 my ($hostname) = @_;
744 my $entry = { table=>'known_clients',
745 hostname=>$hostname,
746 status=>'none',
747 hostkey=>'none',
748 timestamp=>'none',
749 macaddress=>'none',
750 events=>'none',
751 };
752 my $res = $known_clients_db->add_dbentry($entry);
753 if ($res > 0) {
754 daemon_log("ERROR: cannot add entry to known_clients.db: $res", 1);
755 }
757 return;
758 }
760 sub sysreadline(*;$) {
761 my ($hd, $timeout) = @_;
763 $hd = qualify_to_ref($hd, caller());
764 my $infinitely_patient = (@_ == 1 || $timeout < 0);
765 my $start_time = time();
766 my $selector = IO::Select->new();
767 $selector->add($hd);
768 my $line = "";
770 SLEEP:
771 until( at_eol($line)) {
772 if (not $infinitely_patient) {
773 return $line if time() > ($start_time + $timeout);
774 }
775 next SLEEP unless $selector->can_read(1.0);
776 INPUT_READY:
777 while( $selector->can_read(0.0)) {
778 my $was_blocking = $hd->blocking(0);
779 CHAR: while (sysread($hd, my $nextbyte, 1)) {
780 $line .= $nextbyte;
781 last CHAR if $nextbyte eq "\n";
783 }
784 $hd->blocking($was_blocking);
785 next SLEEP unless at_eol($line);
786 last INPUT_READY;
787 }
788 }
789 return $line;
790 }
792 sub at_eol($) {
793 $_[0] =~ /\n\z/ ;
794 }
796 #==== MAIN = main ==============================================================
798 # parse commandline options
799 Getopt::Long::Configure( "bundling" );
800 GetOptions("h|help" => \&usage,
801 "c|config=s" => \$cfg_file,
802 "f|foreground" => \$foreground,
803 "v|verbose+" => \$verbose,
804 "no-bus+" => \$no_bus,
805 "no-arp+" => \$no_arp,
806 );
808 # read and set config parameters
809 &check_cmdline_param ;
810 &read_configfile;
811 &check_pid;
813 $SIG{CHLD} = 'IGNORE';
815 # forward error messages to logfile
816 if( ! $foreground ) {
817 open(STDERR, '>>', $log_file);
818 open(STDOUT, '>>', $log_file);
819 }
821 # Just fork, if we are not in foreground mode
822 if( ! $foreground ) {
823 chdir '/' or die "Can't chdir to /: $!";
824 $pid = fork;
825 setsid or die "Can't start a new session: $!";
826 umask 0;
827 } else {
828 $pid = $$;
829 }
831 # Do something useful - put our PID into the pid_file
832 if( 0 != $pid ) {
833 open( LOCK_FILE, ">$pid_file" );
834 print LOCK_FILE "$pid\n";
835 close( LOCK_FILE );
836 if( !$foreground ) {
837 exit( 0 )
838 };
839 }
841 daemon_log(" ", 1);
842 daemon_log("$0 started!", 1);
845 # connect to gosa-si job queue
846 my @job_col_names = ("id", "timestamp", "status", "result", "headertag", "targettag", "xmlmessage", "macaddress");
847 $job_db = GOSA::DBsqlite->new($job_queue_file_name);
848 $job_db->create_table('jobs', \@job_col_names);
850 # connect to known_clients_db
851 my @clients_col_names = ('hostname', 'status', 'hostkey', 'timestamp', 'macaddress', 'events');
852 $known_clients_db = GOSA::DBsqlite->new($known_clients_file_name);
853 $known_clients_db->create_table('known_clients', \@clients_col_names);
855 # connect to known_server_db
856 my @server_col_names = ('hostname', 'status', 'hostkey', 'timestamp');
857 $known_server_db = GOSA::DBsqlite->new($known_server_file_name);
858 $known_server_db->create_table('known_server', \@server_col_names);
860 # import all modules
861 &import_modules;
863 # check wether all modules are gosa-si valid passwd check
865 # create reading and writing vectors
866 my $rbits = my $wbits = my $ebits = "";
868 # add all module inputs to listening vector
869 while( my ($mod_name, $info) = each %$known_modules ) {
870 my ($input_address, $input_key, $input, $input_activ, $input_type) = @{$info};
871 vec($rbits, fileno $input, 1) = 1;
873 }
876 ## start arp fifo
877 #if ($no_arp > 0) {
878 # $arp_activ = "off";
879 #}
880 #my $my_fifo;
881 #if($arp_activ eq "on") {
882 # daemon_log(" ", 1);
883 # $my_fifo = &open_fifo($arp_fifo_path);
884 # if($my_fifo == 0) { die "fifo file disappeared\n" }
885 # sysopen($arp_fifo, $arp_fifo_path, O_RDWR) or die "can't read from $arp_fifo: $!" ;
886 #
887 # vec($rbits, fileno $arp_fifo, 1) = 1;
888 #}
889 #
891 ##################################
892 #everything ready, okay, lets start
893 ##################################
894 while(1) {
896 # add all handles from the childs
897 while ( my ($pid, $child_hash) = each %busy_child ) {
899 # check whether process still exists
900 my $exitus_pid = waitpid($pid, WNOHANG);
901 if($exitus_pid != 0) {
902 delete $busy_child{$pid};
903 next;
904 }
906 # add child fhd to the listener
907 my $fhd = $$child_hash{'pipe_rd'};
908 vec($rbits, fileno $fhd, 1) = 1;
909 }
911 my ($rout, $wout);
912 my $nf = select($rout=$rbits, $wout=$wbits, undef, $job_queue_timeout);
914 # error handling
915 if($nf < 0 ) {
916 }
919 # if($arp_activ eq "on" && vec($rout, fileno $arp_fifo, 1)) {
920 # my $in_msg = <$arp_fifo>;
921 # chomp($in_msg);
922 # print "arp_activ: msg: $in_msg\n";
923 # my $act_passwd = $known_daemons->{$bus_address}->{passwd};
924 # print "arp_activ: arp_passwd: $act_passwd\n";
925 #
926 # my $in_msg_hash = $xml->XMLin($in_msg, ForceArray=>1);
927 #
928 # my $target = &get_content_from_xml_hash($in_msg_hash, 'target');
929 #
930 # if ($target eq $server_address) {
931 # print "arp_activ: forward to server\n";
932 # my $arp_cipher = &create_ciphering($act_passwd);
933 # my $crypted_msg = &encrypt_msg($in_msg, $arp_cipher);
934 # &activating_child($crypted_msg, $server_ip);
935 # } else {
936 # print "arp_activ: send to bus\n";
937 # &send_msg_hash2address($in_msg_hash, $bus_address);
938 # }
939 # print "\n";
940 # }
943 # check input fhd of all modules
944 while ( my ($mod_name, $info) = each %$known_modules) {
945 my $input_fhd = @{$info}[2];
946 my $input_activ = @{$info}[3];
947 if (vec($rout, fileno $input_fhd, 1) && $input_activ eq 'on') {
948 daemon_log(" ", 1);
949 my $client = $input_fhd->accept();
950 my $other_end = getpeername($client);
951 if(not defined $other_end) {
952 daemon_log("client cannot be identified: $!");
953 } else {
954 my ($port, $iaddr) = unpack_sockaddr_in($other_end);
955 my $actual_ip = inet_ntoa($iaddr);
956 daemon_log("accept client at daemon socket from $actual_ip", 5);
957 my $in_msg = &read_from_socket($client);
958 if(defined $in_msg){
959 chomp($in_msg);
960 &activating_child($in_msg, $actual_ip, $client);
961 } else {
962 daemon_log("cannot read from $actual_ip", 5);
963 }
964 }
965 }
966 }
968 # check all processing childs whether they are finished ('done') or
969 while ( my ($pid, $child_hash) = each %busy_child ) {
970 my $fhd = $$child_hash{'pipe_rd'};
972 if (vec($rout, fileno $fhd, 1) ) {
973 daemon_log("process child $pid is ready to read", 5);
975 my $in_msg;
976 while (1) {
977 my $part_in_msg = <$fhd>;
978 if( $part_in_msg eq "ENDMESSAGE\n") {
979 last;
980 }
981 $in_msg .= $part_in_msg;
982 }
983 chomp($in_msg);
985 daemon_log("process child read:", 7);
986 daemon_log("\n$in_msg", 7);
987 if (not defined $in_msg) {
988 next;
989 } elsif ($in_msg =~ "done") {
990 delete $busy_child{$pid};
991 $free_child{$pid} = $child_hash;
993 } else {
994 # send computed answer back to connected client
995 my $act_client = $busy_child{$pid}{client_ref};
996 print $act_client $in_msg."\n";
998 #my $act_pipe = $busy_child{$pid}{pipe_rd};
999 delete $busy_child{$pid};
1000 $free_child{$pid} = $child_hash;
1002 # give the client a chance to read
1003 #sleep(1);
1004 #close ($act_client);
1006 }
1007 }
1008 }
1010 # check gosa job queue for jobs with executable timestamp
1011 my ($seconds, $minutes, $hours, $monthday, $month,
1012 $year, $weekday, $yearday, $sommertime) = localtime(time);
1013 $hours = $hours < 10 ? $hours = "0".$hours : $hours;
1014 $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
1015 $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
1016 $month+=1;
1017 $month = $month < 10 ? $month = "0".$month : $month;
1018 $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
1019 $year+=1900;
1020 my $timestamp = "$year$month$monthday$hours$minutes$seconds";
1023 my $res = $job_db->select_dbentry( { table=>$job_queue_table_name, status=>'waiting', timestamp=>$timestamp } );
1025 while( my ($id, $hit) = each %{$res} ) {
1027 my $jobdb_id = $hit->{ROWID};
1028 my $macaddress = $hit->{macaddress};
1029 my $job_msg_hash = &transform_msg2hash($hit->{xmlmessage});
1030 my $out_msg_hash = $job_msg_hash;
1031 my $res_hash = $known_clients_db->select_dbentry( {table=>'known_clients', macaddress=>$macaddress} );
1032 # expect macaddress is unique!!!!!!
1033 my $target = $res_hash->{1}->{hostname};
1035 if (not defined $target) {
1036 &daemon_log("ERROR: no host found for mac address: $job_msg_hash->{mac}[0]", 1);
1037 &daemon_log("xml message: $hit->{xmlmessage}", 5);
1038 my $update_hash = { table=>$job_queue_table_name,
1039 update=> [ { status=>['error'], result=>["no host found for mac address"] } ],
1040 where=> [ { ROWID=>[$jobdb_id] } ],
1041 };
1042 my $res = $job_db->update_dbentry($update_hash);
1044 next;
1045 }
1047 # add target
1048 &add_content2xml_hash($out_msg_hash, "target", $target);
1050 # add new header
1051 my $out_header = $job_msg_hash->{header}[0];
1052 $out_header =~ s/job_/gosa_/;
1053 delete $out_msg_hash->{header};
1054 &add_content2xml_hash($out_msg_hash, "header", $out_header);
1056 # add sqlite_id
1057 &add_content2xml_hash($out_msg_hash, "jobdb_id", $jobdb_id);
1059 my $out_msg = &create_xml_string($out_msg_hash);
1061 # encrypt msg as a GosaPackage module
1062 my $cipher = &create_ciphering($gosa_passwd);
1063 my $crypted_out_msg = &encrypt_msg($out_msg, $cipher);
1065 my $error = &send_msg_hash2address($out_msg_hash, "$gosa_ip:$gosa_port", $gosa_passwd);
1067 #######################
1068 # TODO exchange ROWID with jobid, insert column jobid in table jobs befor
1070 if ($error == 0) {
1071 my $sql = "UPDATE '$job_queue_table_name' SET status='processing', targettag='$target' WHERE ROWID='$jobdb_id'";
1072 my $res = $job_db->exec_statement($sql);
1073 } else {
1074 my $update_hash = { table=>$job_queue_table_name,
1075 update=> [ { status=>'error' } ],
1076 where=> [ { ROWID=>$jobdb_id } ],
1077 };
1078 my $res = $job_db->update_dbentry($update_hash);
1079 }
1081 }
1084 }