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 Crypt::Rijndael;
33 use MIME::Base64;
34 use Digest::MD5 qw(md5 md5_hex md5_base64);
35 use XML::Simple;
36 use Data::Dumper;
37 use Sys::Syslog qw( :DEFAULT setlogsock);
38 use Cwd;
39 use File::Spec;
40 use GOSA::GosaSupportDaemon;
41 use GOSA::DBsqlite;
43 my $modules_path = "/usr/lib/gosa-si/modules";
44 use lib "/usr/lib/gosa-si/modules";
46 my (%cfg_defaults, $foreground, $verbose, $ping_timeout);
47 my ($bus, $msg_to_bus, $bus_cipher);
48 my ($server, $server_mac_address, $server_events);
49 my ($gosa_server, $job_queue_timeout, $job_queue_table_name, $job_queue_file_name);
50 my ($known_modules, $known_clients_file_name, $known_server_file_name);
51 my ($max_clients);
52 my ($pid_file, $procid, $pid, $log_file);
53 my (%free_child, %busy_child, $child_max, $child_min, %child_alive_time, $child_timeout);
54 my ($arp_activ, $arp_fifo, $arp_fifo_path);
56 # variables declared in config file are always set to 'our'
57 our (%cfg_defaults, $log_file, $pid_file,
58 $bus_activ, $bus_passwd, $bus_ip, $bus_port,
59 $server_activ, $server_ip, $server_port, $server_passwd, $max_clients,
60 $arp_activ, $arp_fifo_path,
61 $gosa_activ, $gosa_passwd, $gosa_ip, $gosa_port, $gosa_timeout,
62 );
64 # additional variable which should be globaly accessable
65 our $xml;
66 our $server_address;
67 our $bus_address;
68 our $gosa_address;
69 our $no_bus;
70 our $no_arp;
71 our $verbose;
72 our $forground;
73 our $cfg_file;
75 # specifies the verbosity of the daemon_log
76 $verbose = 0 ;
78 # if foreground is not null, script will be not forked to background
79 $foreground = 0 ;
81 # specifies the timeout seconds while checking the online status of a registrating client
82 $ping_timeout = 5;
84 $no_bus = 0;
86 $no_arp = 0;
88 # name of table for storing gosa jobs
89 our $job_queue_table_name = 'jobs';
90 our $job_db;
92 # holds all other gosa-sd as well as the gosa-sd-bus
93 our $known_server_db;
95 # holds all registrated clients
96 our $known_clients_db;
98 %cfg_defaults =
99 ("general" =>
100 {"log_file" => [\$log_file, "/var/run/".$0.".log"],
101 "pid_file" => [\$pid_file, "/var/run/".$0.".pid"],
102 "child_max" => [\$child_max, 10],
103 "child_min" => [\$child_min, 3],
104 "child_timeout" => [\$child_timeout, 180],
105 "job_queue_timeout" => [\$job_queue_timeout, undef],
106 "job_queue_file_name" => [\$job_queue_file_name, '/var/lib/gosa-si/jobs.db'],
107 "known_clients_file_name" => [\$known_clients_file_name, '/var/lib/gosa-si/known_clients.db' ],
108 "known_server_file_name" => [\$known_server_file_name, '/var/lib/gosa-si/known_server.db'],
109 },
110 "bus" =>
111 {"bus_activ" => [\$bus_activ, "on"],
112 "bus_passwd" => [\$bus_passwd, ""],
113 "bus_ip" => [\$bus_ip, "0.0.0.0"],
114 "bus_port" => [\$bus_port, "20080"],
115 },
116 "server" =>
117 {"server_activ" => [\$server_activ, "on"],
118 "server_ip" => [\$server_ip, "0.0.0.0"],
119 "server_port" => [\$server_port, "20081"],
120 "server_passwd" => [\$server_passwd, ""],
121 "max_clients" => [\$max_clients, 100],
122 },
123 "arp" =>
124 {"arp_activ" => [\$arp_activ, "on"],
125 "arp_fifo_path" => [\$arp_fifo_path, "/var/run/gosa-si/arp-notify"],
126 },
127 "gosa" =>
128 {"gosa_activ" => [\$gosa_activ, "on"],
129 "gosa_ip" => [\$gosa_ip, "0.0.0.0"],
130 "gosa_port" => [\$gosa_port, "20082"],
131 "gosa_passwd" => [\$gosa_passwd, "none"],
132 },
133 );
136 #=== FUNCTION ================================================================
137 # NAME: usage
138 # PARAMETERS: nothing
139 # RETURNS: nothing
140 # DESCRIPTION: print out usage text to STDERR
141 #===============================================================================
142 sub usage {
143 print STDERR << "EOF" ;
144 usage: $0 [-hvf] [-c config]
146 -h : this (help) message
147 -c <file> : config file
148 -f : foreground, process will not be forked to background
149 -v : be verbose (multiple to increase verbosity)
150 -no-bus : starts $0 without connection to bus
151 -no-arp : starts $0 without connection to arp module
153 EOF
154 print "\n" ;
155 }
158 #=== FUNCTION ================================================================
159 # NAME: read_configfile
160 # PARAMETERS: cfg_file - string -
161 # RETURNS: nothing
162 # DESCRIPTION: read cfg_file and set variables
163 #===============================================================================
164 sub read_configfile {
165 my $cfg;
166 if( defined( $cfg_file) && ( length($cfg_file) > 0 )) {
167 if( -r $cfg_file ) {
168 $cfg = Config::IniFiles->new( -file => $cfg_file );
169 } else {
170 print STDERR "Couldn't read config file!\n";
171 }
172 } else {
173 $cfg = Config::IniFiles->new() ;
174 }
175 foreach my $section (keys %cfg_defaults) {
176 foreach my $param (keys %{$cfg_defaults{ $section }}) {
177 my $pinfo = $cfg_defaults{ $section }{ $param };
178 ${@$pinfo[ 0 ]} = $cfg->val( $section, $param, @$pinfo[ 1 ] );
179 }
180 }
181 }
184 #=== FUNCTION ================================================================
185 # NAME: logging
186 # PARAMETERS: level - string - default 'info'
187 # msg - string -
188 # facility - string - default 'LOG_DAEMON'
189 # RETURNS: nothing
190 # DESCRIPTION: function for logging
191 #===============================================================================
192 sub daemon_log {
193 # log into log_file
194 my( $msg, $level ) = @_;
195 if(not defined $msg) { return }
196 if(not defined $level) { $level = 1 }
197 if(defined $log_file){
198 open(LOG_HANDLE, ">>$log_file");
199 if(not defined open( LOG_HANDLE, ">>$log_file" )) {
200 print STDERR "cannot open $log_file: $!";
201 return }
202 chomp($msg);
203 if($level <= $verbose){
204 my ($seconds, $minutes, $hours, $monthday, $month,
205 $year, $weekday, $yearday, $sommertime) = localtime(time);
206 $hours = $hours < 10 ? $hours = "0".$hours : $hours;
207 $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
208 $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
209 my @monthnames = ("Jan", "Feb", "Mar", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
210 $month = $monthnames[$month];
211 $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
212 $year+=1900;
213 my $name = $0;
214 $name =~ s/\.\///;
216 my $log_msg = "\n$month $monthday $hours:$minutes:$seconds $name $msg";
217 print LOG_HANDLE $log_msg;
218 if( $foreground ) {
219 print STDERR $log_msg;
220 }
221 }
222 close( LOG_HANDLE );
223 }
224 #log into syslog
225 # my ($msg, $level, $facility) = @_;
226 # if(not defined $msg) {return}
227 # if(not defined $level) {$level = "info"}
228 # if(not defined $facility) {$facility = "LOG_DAEMON"}
229 # openlog($0, "pid,cons,", $facility);
230 # syslog($level, $msg);
231 # closelog;
232 # return;
233 }
236 #=== FUNCTION ================================================================
237 # NAME: check_cmdline_param
238 # PARAMETERS: nothing
239 # RETURNS: nothing
240 # DESCRIPTION: validates commandline parameter
241 #===============================================================================
242 sub check_cmdline_param () {
243 my $err_config;
244 my $err_counter = 0;
245 if( not defined( $cfg_file)) {
246 #$err_config = "please specify a config file";
247 #$err_counter += 1;
248 my $cwd = getcwd;
249 my $name = "/etc/gosa-si/server.conf";
250 $cfg_file = File::Spec->catfile( $cwd, $name );
251 }
252 if( $err_counter > 0 ) {
253 &usage( "", 1 );
254 if( defined( $err_config)) { print STDERR "$err_config\n"}
255 print STDERR "\n";
256 exit( -1 );
257 }
258 }
261 #=== FUNCTION ================================================================
262 # NAME: check_pid
263 # PARAMETERS: nothing
264 # RETURNS: nothing
265 # DESCRIPTION: handels pid processing
266 #===============================================================================
267 sub check_pid {
268 $pid = -1;
269 # Check, if we are already running
270 if( open(LOCK_FILE, "<$pid_file") ) {
271 $pid = <LOCK_FILE>;
272 if( defined $pid ) {
273 chomp( $pid );
274 if( -f "/proc/$pid/stat" ) {
275 my($stat) = `cat /proc/$pid/stat` =~ m/$pid \((.+)\).*/;
276 if( $0 eq $stat ) {
277 close( LOCK_FILE );
278 exit -1;
279 }
280 }
281 }
282 close( LOCK_FILE );
283 unlink( $pid_file );
284 }
286 # create a syslog msg if it is not to possible to open PID file
287 if (not sysopen(LOCK_FILE, $pid_file, O_WRONLY|O_CREAT|O_EXCL, 0644)) {
288 my($msg) = "Couldn't obtain lockfile '$pid_file' ";
289 if (open(LOCK_FILE, '<', $pid_file)
290 && ($pid = <LOCK_FILE>))
291 {
292 chomp($pid);
293 $msg .= "(PID $pid)\n";
294 } else {
295 $msg .= "(unable to read PID)\n";
296 }
297 if( ! ($foreground) ) {
298 openlog( $0, "cons,pid", "daemon" );
299 syslog( "warning", $msg );
300 closelog();
301 }
302 else {
303 print( STDERR " $msg " );
304 }
305 exit( -1 );
306 }
307 }
309 #=== FUNCTION ================================================================
310 # NAME: import_modules
311 # PARAMETERS: module_path - string - abs. path to the directory the modules
312 # are stored
313 # RETURNS: nothing
314 # DESCRIPTION: each file in module_path which ends with '.pm' is imported by
315 # "require 'file';"
316 #===============================================================================
317 sub import_modules {
318 daemon_log(" ", 1);
320 if (not -e $modules_path) {
321 daemon_log("ERROR: cannot find directory or directory is not readable: $modules_path", 1);
322 }
324 opendir (DIR, $modules_path) or die "ERROR while loading modules from directory $modules_path : $!\n";
325 while (defined (my $file = readdir (DIR))) {
326 if (not $file =~ /(\S*?).pm$/) {
327 next;
328 }
329 eval { require $file; };
330 if ($@) {
331 daemon_log("ERROR: gosa-si-server could not load module $file", 1);
332 daemon_log("$@", 5);
333 } else {
334 my $mod_name = $1;
335 my $info = eval($mod_name.'::get_module_info()');
336 my ($input_address, $input_key, $input, $input_active, $input_type) = @{$info};
337 $known_modules->{$mod_name} = $info;
339 daemon_log("module $mod_name loaded", 1);
340 }
341 }
343 # for debugging
344 #while ( my ($module, $tag_hash) = each(%$known_modules)) {
345 # print "\tmodule: $module"."\n";
346 # print "\ttags: ".join(", ", keys(%$tag_hash))."\n";
347 #}
348 close (DIR);
349 }
352 #=== FUNCTION ================================================================
353 # NAME: sig_int_handler
354 # PARAMETERS: signal - string - signal arose from system
355 # RETURNS: noting
356 # DESCRIPTION: handels tasks to be done befor signal becomes active
357 #===============================================================================
358 sub sig_int_handler {
359 my ($signal) = @_;
361 daemon_log("shutting down gosa-si-server", 1);
362 exit(1);
363 }
364 $SIG{INT} = \&sig_int_handler;
367 #=== FUNCTION ================================================================
368 # NAME: activating_child
369 # PARAMETERS: msg - string - incoming message
370 # host - string - host from which the incomming message comes
371 # RETURNS: nothing
372 # DESCRIPTION: handels the distribution of incoming messages to working childs
373 #===============================================================================
374 sub activating_child {
375 my ($msg, $host, $client) = @_;
376 my $child = &get_processing_child();
377 my $pipe_wr = $$child{'pipe_wr'};
378 my $pipe_rd = $$child{'pipe_rd'};
379 $$child{client_ref} = $client;
381 daemon_log("activating: childpid:$$child{'pid'}", 5);
383 print $pipe_wr $msg.".".$host."\n";
385 return;
386 }
389 #=== FUNCTION ================================================================
390 # NAME: get_processing_child
391 # PARAMETERS: nothing
392 # RETURNS: child - hash - holding the process id and the references to the pipe
393 # handles pipe_wr and pipe_rd
394 # DESCRIPTION: handels the forking, reactivating and keeping alive tasks
395 #===============================================================================
396 sub get_processing_child {
397 my $child;
399 while(my ($key, $val) = each(%free_child)) {
400 my $exitus_pid = waitpid($key, WNOHANG);
401 if($exitus_pid != 0) {
402 delete $free_child{$key};
403 }
404 daemon_log("free child:$key", 5);
405 }
406 # check @free_child and @busy_child
407 my $free_len = scalar(keys(%free_child));
408 my $busy_len = scalar(keys(%busy_child));
409 daemon_log("free children $free_len, busy children $busy_len", 5);
411 # if there is a free child, let the child work
412 if($free_len > 0){
413 my @keys = keys(%free_child);
414 $child = $free_child{$keys[0]};
415 if(defined $child) {
416 $busy_child{$$child{'pid'}} = $child ;
417 delete $free_child{$$child{'pid'}};
418 }
419 return $child;
420 }
422 # no free child, try to fork another one
423 if($free_len + $busy_len < $child_max) {
425 daemon_log("not enough children, create a new one", 5);
427 # New pipes for communication
428 my( $PARENT_wr, $PARENT_rd );
429 my( $CHILD_wr, $CHILD_rd );
430 pipe( $CHILD_rd, $PARENT_wr );
431 pipe( $PARENT_rd, $CHILD_wr );
432 $PARENT_wr->autoflush(1);
433 $CHILD_wr->autoflush(1);
435 ############
436 # fork child
437 ############
438 my $child_pid = fork();
440 #CHILD
441 if($child_pid == 0) {
442 # Close unused pipes
443 close( $CHILD_rd );
444 close( $CHILD_wr );
445 while( 1 ) {
446 my $rbits = "";
447 vec( $rbits, fileno $PARENT_rd , 1 ) = 1;
448 my $nf = select($rbits, undef, undef, $child_timeout);
449 if($nf < 0 ) {
450 die "select(): $!\n";
451 } elsif (! $nf) {
452 # if already child_min childs are alive, then leave loop
453 $free_len = scalar(keys(%free_child));
454 $busy_len = scalar(keys(%busy_child));
455 if($free_len + $busy_len >= $child_min) {
456 last;
457 } else {
458 redo;
459 }
460 }
462 # a job for a child arise
463 if ( vec $rbits, fileno $PARENT_rd, 1 ) {
464 # read everything from pipe
465 my $msg = "";
466 $PARENT_rd->blocking(0);
467 while(1) {
468 my $read = <$PARENT_rd>;
469 if(not defined $read) { last}
470 $msg .= $read;
471 }
473 ######################################
474 # forward msg to all imported modules
475 no strict "refs";
476 my $answer;
477 my %act_modules = %$known_modules;
478 while( my ($module, $info) = each(%act_modules)) {
479 my $tmp = &{ $module."::process_incoming_msg" }($msg);
480 if (defined $tmp) {
481 $answer = $tmp;
482 }
483 }
485 #&print_known_daemons();
486 #&print_known_clients();
488 daemon_log("processing of msg finished", 5);
490 if (defined $answer) {
491 print $PARENT_wr $answer."\n";
492 my $len_answer = length $answer;
493 # daemon_log("with answer: length of answer: $len_answer", 7);
494 # daemon_log("\n$answer", 7);
495 } else {
496 print $PARENT_wr "done"."\n";
497 daemon_log(" ", 7);
498 }
499 redo;
500 }
501 }
502 # childs leaving the loop are allowed to die
503 exit(0);
506 #PARENT
507 } else {
508 # Close unused pipes
509 close( $PARENT_rd );
510 close( $PARENT_wr );
512 # add child to child alive hash
513 my %child_hash = (
514 'pid' => $child_pid,
515 'pipe_wr' => $CHILD_wr,
516 'pipe_rd' => $CHILD_rd,
517 'client_ref' => "",
518 );
520 $child = \%child_hash;
521 $busy_child{$$child{'pid'}} = $child;
522 return $child;
523 }
524 }
525 }
528 #=== FUNCTION ================================================================
529 # NAME: read_from_socket
530 # PARAMETERS: socket fh -
531 # RETURNS: result string - readed characters from socket
532 # DESCRIPTION: reads data from socket in 16 byte steps
533 #===============================================================================
534 sub read_from_socket {
535 my ($socket) = @_;
536 my $result = "";
538 $socket->blocking(1);
539 $result = <$socket>;
541 $socket->blocking(0);
542 while ( my $char = <$socket> ) {
543 if (not defined $char) { last }
544 $result .= $char;
545 }
547 return $result;
548 }
551 #=== FUNCTION ================================================================
552 # NAME: print_known_daemons
553 # PARAMETERS: nothing
554 # RETURNS: nothing
555 # DESCRIPTION: nomen est omen
556 #===============================================================================
557 #sub print_known_daemons {
558 # my ($tmp) = @_ ;
559 # print "####################################\n";
560 # print "# status of known_daemons\n";
561 # $shmda->shlock(LOCK_EX);
562 # my @hosts = keys %$known_daemons;
563 # foreach my $host (@hosts) {
564 # my $status = $known_daemons->{$host}->{status} ;
565 # my $passwd = $known_daemons->{$host}->{passwd};
566 # my $timestamp = $known_daemons->{$host}->{timestamp};
567 # print "$host\n";
568 # print "\tstatus: $status\n";
569 # print "\tpasswd: $passwd\n";
570 # print "\ttimestamp: $timestamp\n";
571 # }
572 # $shmda->shunlock(LOCK_EX);
573 # print "####################################\n";
574 # return;
575 #}
578 #=== FUNCTION ================================================================
579 # NAME: create_known_daemon
580 # PARAMETERS: hostname - string - key for the hash known_daemons
581 # RETURNS: nothing
582 # DESCRIPTION: creates a dummy entry for hostname in known_daemons
583 #===============================================================================
584 #sub create_known_daemon {
585 # my ($hostname) = @_;
586 # $shmda->shlock(LOCK_EX);
587 # $known_daemons->{$hostname} = {};
588 # $known_daemons->{$hostname}->{status} = "none";
589 # $known_daemons->{$hostname}->{passwd} = "none";
590 # $known_daemons->{$hostname}->{timestamp} = "none";
591 # $shmda->shunlock(LOCK_EX);
592 # return;
593 #}
596 #=== FUNCTION ================================================================
597 # NAME: add_content2known_daemons
598 # PARAMETERS: hostname - string - ip address and port of host (required)
599 # status - string - (optional)
600 # passwd - string - (optional)
601 # mac_address - string - mac address of host (optional)
602 # RETURNS: nothing
603 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
604 #===============================================================================
605 #sub add_content2known_daemons {
606 # my $arg = {
607 # hostname => undef, status => undef, passwd => undef,
608 # mac_address => undef, events => undef,
609 # @_ };
610 # my $hostname = $arg->{hostname};
611 # my $status = $arg->{status};
612 # my $passwd = $arg->{passwd};
613 # my $mac_address = $arg->{mac_address};
614 # my $events = $arg->{events};
615 #
616 # if (not defined $hostname) {
617 # daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
618 # return;
619 # }
620 #
621 # my ($seconds, $minutes, $hours, $monthday, $month,
622 # $year, $weekday, $yearday, $sommertime) = localtime(time);
623 # $hours = $hours < 10 ? $hours = "0".$hours : $hours;
624 # $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
625 # $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
626 # $month+=1;
627 # $month = $month < 10 ? $month = "0".$month : $month;
628 # $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
629 # $year+=1900;
630 # my $t = "$year$month$monthday$hours$minutes$seconds";
631 #
632 # $shmda->shlock(LOCK_EX);
633 # if (defined $status) {
634 # $known_daemons->{$hostname}->{status} = $status;
635 # }
636 # if (defined $passwd) {
637 # $known_daemons->{$hostname}->{passwd} = $passwd;
638 # }
639 # if (defined $mac_address) {
640 # $known_daemons->{$hostname}->{mac_address} = $mac_address;
641 # }
642 # if (defined $events) {
643 # $known_daemons->{$hostname}->{events} = $events;
644 # }
645 # $known_daemons->{$hostname}->{timestamp} = $t;
646 # $shmda->shlock(LOCK_EX);
647 # return;
648 #}
651 #=== FUNCTION ================================================================
652 # NAME: update_known_daemons
653 # PARAMETERS: hostname - string - ip address and port of host (required)
654 # status - string - (optional)
655 # passwd - string - (optional)
656 # client - string - ip address and port of client (optional)
657 # RETURNS: nothing
658 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
659 #===============================================================================
660 #sub update_known_daemons {
661 # my $arg = {
662 # hostname => undef, status => undef, passwd => undef,
663 # @_ };
664 # my $hostname = $arg->{hostname};
665 # my $status = $arg->{status};
666 # my $passwd = $arg->{passwd};
667 #
668 # if (not defined $hostname) {
669 # daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
670 # return;
671 # }
672 #
673 # my ($seconds, $minutes, $hours, $monthday, $month,
674 # $year, $weekday, $yearday, $sommertime) = localtime(time);
675 # $hours = $hours < 10 ? $hours = "0".$hours : $hours;
676 # $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
677 # $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
678 # $month+=1;
679 # $month = $month < 10 ? $month = "0".$month : $month;
680 # $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
681 # $year+=1900;
682 # my $t = "$year$month$monthday$hours$minutes$seconds";
683 #
684 # $shmda->shlock(LOCK_EX);
685 # if (defined $status) {
686 # $known_daemons->{$hostname}->{status} = $status;
687 # }
688 # if (defined $passwd) {
689 # $known_daemons->{$hostname}->{passwd} = $passwd;
690 # }
691 # $known_daemons->{$hostname}->{timestamp} = $t;
692 # $shmda->shunlock(LOCK_EX);
693 # return;
694 #}
697 #=== FUNCTION ================================================================
698 # NAME: print_known_clients
699 # PARAMETERS: nothing
700 # RETURNS: nothing
701 # DESCRIPTION: nomen est omen
702 #===============================================================================
703 #sub print_known_clients {
704 #
705 # print "####################################\n";
706 # print "# status of known_clients\n";
707 # $shmcl->shlock(LOCK_EX);
708 # my @hosts = keys %$known_clients;
709 # if (@hosts) {
710 # foreach my $host (@hosts) {
711 # my $status = $known_clients->{$host}->{status} ;
712 # my $passwd = $known_clients->{$host}->{passwd};
713 # my $timestamp = $known_clients->{$host}->{timestamp};
714 # my $mac_address = $known_clients->{$host}->{mac_address};
715 # my $events = $known_clients->{$host}->{events};
716 # print "$host\n";
717 # print "\tstatus: $status\n";
718 # print "\tpasswd: $passwd\n";
719 # print "\ttimestamp: $timestamp\n";
720 # print "\tmac_address: $mac_address\n";
721 # print "\tevents: $events\n";
722 # }
723 # }
724 # $shmcl->shunlock(LOCK_EX);
725 # print "####################################\n";
726 # return;
727 #}
730 #=== FUNCTION ================================================================
731 # NAME: create_known_client
732 # PARAMETERS: hostname - string - key for the hash known_clients
733 # RETURNS: nothing
734 # DESCRIPTION: creates a dummy entry for hostname in known_clients
735 #===============================================================================
736 sub create_known_client {
737 my ($hostname) = @_;
739 my $entry = { table=>'known_clients',
740 hostname=>$hostname,
741 status=>'none',
742 hostkey=>'none',
743 timestamp=>'none',
744 macaddress=>'none',
745 events=>'none',
746 };
747 my $res = $known_clients_db->add_dbentry($entry);
748 if ($res > 0) {
749 daemon_log("ERROR: cannot add entry to known_clients.db: $res", 1);
750 }
752 return;
753 }
756 #=== FUNCTION ================================================================
757 # NAME: add_content2known_clients
758 # PARAMETERS: hostname - string - ip address and port of host (required)
759 # status - string - (optional)
760 # passwd - string - (optional)
761 # mac_address - string - (optional)
762 # events - string - event of client, executable skripts
763 # under /etc/gosac/events
764 # RETURNS: nothing
765 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
766 #===============================================================================
767 #sub update_known_clients {
768 # my $arg = {
769 # hostname => undef, status => undef, hostkey => undef,
770 # macaddress => undef, events => undef, timestamp=>undef,
771 # @_ };
772 # my $hostname = $arg->{hostname};
773 # my $status = $arg->{status};
774 # my $hostkey = $arg->{hostkey};
775 # my $macaddress = $arg->{macaddress};
776 # my $events = $arg->{events};
777 # my $timestamp = $arg->{timestamp};
778 #
779 # if (not defined $hostname) {
780 # daemon_log("ERROR: function add_content2known_clients is not invoked with requiered parameter 'hostname'", 1);
781 # return;
782 # }
783 #
784 # my $change_entry = { table=>'known_clients',
785 # where=>'hostname',
786 # timestamp=>&get_time,
787 # };
788 #
789 #
790 # if (defined $status) {
791 # $change_entry->{status} = $status;
792 # }
793 # if (defined $hostkey) {
794 # $change_entry->{hostkey} = $hostkey;
795 # }
796 # if (defined $macaddress) {
797 # $change_entry->{macaddress} = $macaddress;
798 # }
799 # if (defined $events) {
800 # $change_entry->{events} = $events;
801 # }
802 #
803 # $known_clients->change_dbentry($change_entry);
804 # return;
805 #}
808 #=== FUNCTION ================================================================
809 # NAME:
810 # PARAMETERS:
811 # RETURNS:
812 # DESCRIPTION:
813 #===============================================================================
814 #sub clean_up_known_clients {
815 # my ($address) = @_ ;
816 #
817 # if (not exists $known_clients->{$address}) {
818 # daemon_log("cannot prune known_clients from $address, client not known", 5);
819 # return;
820 # }
821 #
822 # delete $known_clients->{$address};
823 #
824 # # send bus a msg that address was deleted from known_clients
825 # my $out_hash = &create_xml_hash('delete_client', $server_address, $bus_address, $address);
826 # &send_msg_hash2bus($out_hash);
827 #
828 # daemon_log("client $address deleted from known_clients because of multiple down time", 3);
829 # return;
830 #}
833 #=== FUNCTION ================================================================
834 # NAME: update_known_clients
835 # PARAMETERS: hostname - string - ip address and port of host (required)
836 # status - string - (optional)
837 # passwd - string - (optional)
838 # client - string - ip address and port of client (optional)
839 # RETURNS: nothing
840 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
841 #===============================================================================
842 #sub update_known_clients {
843 # my $arg = {
844 # hostname => undef, status => undef, passwd => undef,
845 # mac_address => undef, events => undef,
846 # @_ };
847 # my $hostname = $arg->{hostname};
848 # my $status = $arg->{status};
849 # my $passwd = $arg->{passwd};
850 # my $mac_address = $arg->{mac_address};
851 # my $events = $arg->{events};
852 #
853 # if (not defined $hostname) {
854 # daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
855 # return;
856 # }
857 #
858 # my ($seconds, $minutes, $hours, $monthday, $month,
859 # $year, $weekday, $yearday, $sommertime) = localtime(time);
860 # $hours = $hours < 10 ? $hours = "0".$hours : $hours;
861 # $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
862 # $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
863 # $month+=1;
864 # $month = $month < 10 ? $month = "0".$month : $month;
865 # $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
866 # $year+=1900;
867 # my $t = "$year$month$monthday$hours$minutes$seconds";
868 #
869 # if (defined $status) {
870 # $known_clients->{$hostname}->{status} = $status;
871 # }
872 # if (defined $passwd) {
873 # $known_clients->{$hostname}->{passwd} = $passwd;
874 # }
875 # if (defined $mac_address) {
876 # $known_clients->{$hostname}->{mac_address} = $mac_address;
877 # }
878 # if (defined $events) {
879 # $known_clients->{$hostname}->{events} = $events;
880 # }
881 # $known_clients_db->{$hostname}->{timestamp} = $t;
882 # return;
883 #}
891 #==== MAIN = main ==============================================================
893 # parse commandline options
894 Getopt::Long::Configure( "bundling" );
895 GetOptions("h|help" => \&usage,
896 "c|config=s" => \$cfg_file,
897 "f|foreground" => \$foreground,
898 "v|verbose+" => \$verbose,
899 "no-bus+" => \$no_bus,
900 "no-arp+" => \$no_arp,
901 );
903 # read and set config parameters
904 &check_cmdline_param ;
905 &read_configfile;
906 &check_pid;
908 $SIG{CHLD} = 'IGNORE';
910 # forward error messages to logfile
911 if( ! $foreground ) {
912 open(STDERR, '>>', $log_file);
913 open(STDOUT, '>>', $log_file);
914 }
916 # Just fork, if we are not in foreground mode
917 if( ! $foreground ) {
918 chdir '/' or die "Can't chdir to /: $!";
919 $pid = fork;
920 setsid or die "Can't start a new session: $!";
921 umask 0;
922 } else {
923 $pid = $$;
924 }
926 # Do something useful - put our PID into the pid_file
927 if( 0 != $pid ) {
928 open( LOCK_FILE, ">$pid_file" );
929 print LOCK_FILE "$pid\n";
930 close( LOCK_FILE );
931 if( !$foreground ) {
932 exit( 0 )
933 };
934 }
936 daemon_log(" ", 1);
937 daemon_log("$0 started!", 1);
940 # connect to gosa-si job queue
941 my @job_col_names = ("id", "timestamp", "status", "result", "headertag", "targettag", "xmlmessage", "macaddress");
942 $job_db = GOSA::DBsqlite->new($job_queue_file_name);
943 $job_db->create_table('jobs', \@job_col_names);
945 # connect to known_clients_db
946 my @clients_col_names = ('hostname', 'status', 'hostkey', 'timestamp', 'macaddress', 'events');
947 $known_clients_db = GOSA::DBsqlite->new($known_clients_file_name);
948 $known_clients_db->create_table('known_clients', \@clients_col_names);
950 # connect to known_server_db
951 my @server_col_names = ('hostname', 'status', 'hostkey', 'timestamp');
952 $known_server_db = GOSA::DBsqlite->new($known_server_file_name);
953 $known_server_db->create_table('known_server', \@server_col_names);
955 # import all modules
956 &import_modules;
958 # check wether all modules are gosa-si valid passwd check
960 # create reading and writing vectors
961 my $rbits = my $wbits = my $ebits = "";
963 # add all module inputs to listening vector
964 while( my ($mod_name, $info) = each %$known_modules ) {
965 my ($input_address, $input_key, $input, $input_activ, $input_type) = @{$info};
966 vec($rbits, fileno $input, 1) = 1;
968 }
971 ## start arp fifo
972 #if ($no_arp > 0) {
973 # $arp_activ = "off";
974 #}
975 #my $my_fifo;
976 #if($arp_activ eq "on") {
977 # daemon_log(" ", 1);
978 # $my_fifo = &open_fifo($arp_fifo_path);
979 # if($my_fifo == 0) { die "fifo file disappeared\n" }
980 # sysopen($arp_fifo, $arp_fifo_path, O_RDWR) or die "can't read from $arp_fifo: $!" ;
981 #
982 # vec($rbits, fileno $arp_fifo, 1) = 1;
983 #}
984 #
986 ##################################
987 #everything ready, okay, lets start
988 ##################################
989 while(1) {
991 # add all handles from the childs
992 while ( my ($pid, $child_hash) = each %busy_child ) {
994 # check whether process still exists
995 my $exitus_pid = waitpid($pid, WNOHANG);
996 if($exitus_pid != 0) {
997 delete $busy_child{$pid};
998 next;
999 }
1001 # add child fhd to the listener
1002 my $fhd = $$child_hash{'pipe_rd'};
1003 vec($rbits, fileno $fhd, 1) = 1;
1004 }
1006 my ($rout, $wout);
1007 my $nf = select($rout=$rbits, $wout=$wbits, undef, $job_queue_timeout);
1009 # error handling
1010 if($nf < 0 ) {
1011 }
1014 # if($arp_activ eq "on" && vec($rout, fileno $arp_fifo, 1)) {
1015 # my $in_msg = <$arp_fifo>;
1016 # chomp($in_msg);
1017 # print "arp_activ: msg: $in_msg\n";
1018 # my $act_passwd = $known_daemons->{$bus_address}->{passwd};
1019 # print "arp_activ: arp_passwd: $act_passwd\n";
1020 #
1021 # my $in_msg_hash = $xml->XMLin($in_msg, ForceArray=>1);
1022 #
1023 # my $target = &get_content_from_xml_hash($in_msg_hash, 'target');
1024 #
1025 # if ($target eq $server_address) {
1026 # print "arp_activ: forward to server\n";
1027 # my $arp_cipher = &create_ciphering($act_passwd);
1028 # my $crypted_msg = &encrypt_msg($in_msg, $arp_cipher);
1029 # &activating_child($crypted_msg, $server_ip);
1030 # } else {
1031 # print "arp_activ: send to bus\n";
1032 # &send_msg_hash2address($in_msg_hash, $bus_address);
1033 # }
1034 # print "\n";
1035 # }
1038 # check input fhd of all modules
1039 while ( my ($mod_name, $info) = each %$known_modules) {
1040 my $input_fhd = @{$info}[2];
1041 my $input_activ = @{$info}[3];
1042 if (vec($rout, fileno $input_fhd, 1) && $input_activ eq 'on') {
1043 daemon_log(" ", 1);
1044 my $client = $input_fhd->accept();
1045 my $other_end = getpeername($client);
1046 if(not defined $other_end) {
1047 daemon_log("client cannot be identified: $!");
1048 } else {
1049 my ($port, $iaddr) = unpack_sockaddr_in($other_end);
1050 my $actual_ip = inet_ntoa($iaddr);
1051 daemon_log("accept client at daemon socket from $actual_ip", 5);
1052 my $in_msg = &read_from_socket($client);
1053 if(defined $in_msg){
1054 chomp($in_msg);
1055 &activating_child($in_msg, $actual_ip, $client);
1056 } else {
1057 daemon_log("cannot read from $actual_ip", 5);
1058 }
1059 }
1060 }
1061 }
1063 # check all processing childs whether they are finished ('done') or
1064 while ( my ($pid, $child_hash) = each %busy_child ) {
1065 my $fhd = $$child_hash{'pipe_rd'};
1067 if (vec($rout, fileno $fhd, 1) ) {
1068 daemon_log("process child $pid is ready to read", 5);
1070 $fhd->blocking(1);
1071 my $in_msg = <$fhd>;
1072 $fhd->blocking(0);
1073 my $part_in_msg;
1074 while ($part_in_msg = <$fhd>) {
1075 if (not defined $part_in_msg) {
1076 last;
1077 }
1078 $in_msg .= $part_in_msg;
1079 }
1080 chomp($in_msg);
1082 # daemon_log("process child read: $in_msg", 7);
1083 # daemon_log("\n$in_msg", 7);
1084 if (not defined $in_msg) {
1085 next;
1086 } elsif ($in_msg =~ "done") {
1087 delete $busy_child{$pid};
1088 $free_child{$pid} = $child_hash;
1090 } else {
1091 # send computed answer back to connected client
1092 my $act_client = $busy_child{$pid}{client_ref};
1093 print $act_client $in_msg."\n";
1095 #my $act_pipe = $busy_child{$pid}{pipe_rd};
1096 delete $busy_child{$pid};
1097 $free_child{$pid} = $child_hash;
1099 # give the client a chance to read
1100 sleep(2);
1101 close ($act_client);
1102 }
1103 }
1104 }
1106 # check gosa job queue for jobs with executable timestamp
1107 my ($seconds, $minutes, $hours, $monthday, $month,
1108 $year, $weekday, $yearday, $sommertime) = localtime(time);
1109 $hours = $hours < 10 ? $hours = "0".$hours : $hours;
1110 $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
1111 $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
1112 $month+=1;
1113 $month = $month < 10 ? $month = "0".$month : $month;
1114 $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
1115 $year+=1900;
1116 my $timestamp = "$year$month$monthday$hours$minutes$seconds";
1119 my $res = $job_db->select_dbentry( { table=>$job_queue_table_name, status=>'waiting', timestamp=>$timestamp } );
1121 while( my ($id, $hit) = each %{$res} ) {
1123 my $jobdb_id = $hit->{ROWID};
1124 my $macaddress = $hit->{macaddress};
1125 my $job_msg_hash = &transform_msg2hash($hit->{xmlmessage});
1126 my $out_msg_hash = $job_msg_hash;
1127 my $res_hash = $known_clients_db->select_dbentry( {table=>'known_clients', macaddress=>$macaddress} );
1128 # expect macaddress is unique!!!!!!
1129 my $target = $res_hash->{1}->{hostname};
1131 if (not defined $target) {
1132 &daemon_log("ERROR: no host found for mac address: $job_msg_hash->{mac}[0]", 1);
1133 &daemon_log("xml message: $hit->{xmlmessage}", 5);
1134 my $update_hash = { table=>$job_queue_table_name,
1135 update=> [ { status=>['error'], result=>["no host found for mac address"] } ],
1136 where=> [ { ROWID=>[$jobdb_id] } ],
1137 };
1138 my $res = $job_db->update_dbentry($update_hash);
1140 next;
1141 }
1143 # add target
1144 &add_content2xml_hash($out_msg_hash, "target", $target);
1146 # add new header
1147 my $out_header = $job_msg_hash->{header}[0];
1148 $out_header =~ s/job_/gosa_/;
1149 delete $out_msg_hash->{header};
1150 &add_content2xml_hash($out_msg_hash, "header", $out_header);
1152 # add sqlite_id
1153 &add_content2xml_hash($out_msg_hash, "jobdb_id", $jobdb_id);
1155 my $out_msg = &create_xml_string($out_msg_hash);
1157 # encrypt msg as a GosaPackage module
1158 my $cipher = &create_ciphering($gosa_passwd);
1159 my $crypted_out_msg = &encrypt_msg($out_msg, $cipher);
1161 my $error = &send_msg_hash2address($out_msg_hash, "$gosa_ip:$gosa_port", $gosa_passwd);
1163 #######################
1164 # TODO exchange ROWID with jobid, insert column jobid in table jobs befor
1166 if ($error == 0) {
1167 my $sql = "UPDATE '$job_queue_table_name' SET status='processing', targettag='$target' WHERE ROWID='$jobdb_id'";
1168 my $res = $job_db->exec_statement($sql);
1169 } else {
1170 my $update_hash = { table=>$job_queue_table_name,
1171 update=> [ { status=>'error' } ],
1172 where=> [ { ROWID=>$jobdb_id } ],
1173 };
1174 my $res = $job_db->update_dbentry($update_hash);
1175 }
1177 }
1180 }