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_daemons, $shmda, $known_clients, $shmcl, $known_modules, $known_clients_file_name, $known_server_file_name, $known_clients_db, $known_server_db);
54 my ($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;
97 our $known_daemons = {};
98 our $shmda = tie($known_daemons, 'IPC::Shareable', undef, {create => 1,
99 exclusive => 1,
100 mode => 0666,
101 destroy => 1,
102 });
103 # holds all registrated clients
104 our $known_clients_db;
105 #our $known_clients = {};
106 #our $shmcl = tie($known_clients, 'IPC::Shareable', undef, {create => 1,
107 # exclusive => 1,
108 # mode => 0666,
109 # destroy => 1,
110 # });
113 %cfg_defaults =
114 ("general" =>
115 {"log_file" => [\$log_file, "/var/run/".$0.".log"],
116 "pid_file" => [\$pid_file, "/var/run/".$0.".pid"],
117 "child_max" => [\$child_max, 10],
118 "child_min" => [\$child_min, 3],
119 "child_timeout" => [\$child_timeout, 180],
120 "job_queue_timeout" => [\$job_queue_timeout, undef],
121 "job_queue_file_name" => [\$job_queue_file_name, '/var/lib/gosa-si/jobs.db'],
122 "known_clients_file_name" => [\$known_clients_file_name, '/var/lib/gosa-si/known_clients.db' ],
123 "known_server_file_name" => [\$known_server_file_name, '/var/lib/gosa-si/kown_server.db'],
124 },
125 "bus" =>
126 {"bus_activ" => [\$bus_activ, "on"],
127 "bus_passwd" => [\$bus_passwd, ""],
128 "bus_ip" => [\$bus_ip, ""],
129 "bus_port" => [\$bus_port, "20080"],
130 },
131 "server" =>
132 {"server_activ" => [\$server_activ, "on"],
133 "server_ip" => [\$server_ip, ""],
134 "server_port" => [\$server_port, "20081"],
135 "server_passwd" => [\$server_passwd, ""],
136 "max_clients" => [\$max_clients, 100],
137 },
138 "arp" =>
139 {"arp_activ" => [\$arp_activ, "on"],
140 "arp_fifo_path" => [\$arp_fifo_path, "/var/run/gosa-si/arp-notify"],
141 },
142 "gosa" =>
143 {"gosa_activ" => [\$gosa_activ, "on"],
144 "gosa_ip" => [\$gosa_ip, ""],
145 "gosa_port" => [\$gosa_port, "20082"],
146 "gosa_passwd" => [\$gosa_passwd, "none"],
147 },
148 );
151 #=== FUNCTION ================================================================
152 # NAME: usage
153 # PARAMETERS: nothing
154 # RETURNS: nothing
155 # DESCRIPTION: print out usage text to STDERR
156 #===============================================================================
157 sub usage {
158 print STDERR << "EOF" ;
159 usage: $0 [-hvf] [-c config]
161 -h : this (help) message
162 -c <file> : config file
163 -f : foreground, process will not be forked to background
164 -v : be verbose (multiple to increase verbosity)
165 -no-bus : starts $0 without connection to bus
166 -no-arp : starts $0 without connection to arp module
168 EOF
169 print "\n" ;
170 }
173 #=== FUNCTION ================================================================
174 # NAME: read_configfile
175 # PARAMETERS: cfg_file - string -
176 # RETURNS: nothing
177 # DESCRIPTION: read cfg_file and set variables
178 #===============================================================================
179 sub read_configfile {
180 my $cfg;
181 if( defined( $cfg_file) && ( length($cfg_file) > 0 )) {
182 if( -r $cfg_file ) {
183 $cfg = Config::IniFiles->new( -file => $cfg_file );
184 } else {
185 print STDERR "Couldn't read config file!";
186 }
187 } else {
188 $cfg = Config::IniFiles->new() ;
189 }
190 foreach my $section (keys %cfg_defaults) {
191 foreach my $param (keys %{$cfg_defaults{ $section }}) {
192 my $pinfo = $cfg_defaults{ $section }{ $param };
193 ${@$pinfo[ 0 ]} = $cfg->val( $section, $param, @$pinfo[ 1 ] );
194 }
195 }
196 }
199 #=== FUNCTION ================================================================
200 # NAME: logging
201 # PARAMETERS: level - string - default 'info'
202 # msg - string -
203 # facility - string - default 'LOG_DAEMON'
204 # RETURNS: nothing
205 # DESCRIPTION: function for logging
206 #===============================================================================
207 sub daemon_log {
208 # log into log_file
209 my( $msg, $level ) = @_;
210 if(not defined $msg) { return }
211 if(not defined $level) { $level = 1 }
212 if(defined $log_file){
213 open(LOG_HANDLE, ">>$log_file");
214 if(not defined open( LOG_HANDLE, ">>$log_file" )) {
215 print STDERR "cannot open $log_file: $!";
216 return }
217 chomp($msg);
218 if($level <= $verbose){
219 print LOG_HANDLE "$level $msg\n";
220 if(defined $foreground) { print $msg."\n" }
221 }
222 }
223 # close( LOG_HANDLE );
224 #log into syslog
225 # my ($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 }
310 #=== FUNCTION ================================================================
311 # NAME: get_ip_and_mac
312 # PARAMETERS: nothing
313 # RETURNS: (ip, mac)
314 # DESCRIPTION: executes /sbin/ifconfig and parses the output, the first occurence
315 # of a inet address is returned as well as the mac address in the line
316 # above the inet address
317 #===============================================================================
318 sub get_ip_and_mac {
319 my $ip = "0.0.0.0.0"; # Defualt-IP
320 my $mac = "00:00:00:00:00:00"; # Default-MAC
321 my @ifconfig = qx(/sbin/ifconfig);
322 foreach(@ifconfig) {
323 if (/Hardware Adresse (\S{2}):(\S{2}):(\S{2}):(\S{2}):(\S{2}):(\S{2})/) {
324 $mac = "$1:$2:$3:$4:$5:$6";
325 next;
326 }
327 if (/inet Adresse:(\d+).(\d+).(\d+).(\d+)/) {
328 $ip = "$1.$2.$3.$4";
329 last;
330 }
331 }
332 return ($ip, $mac);
333 }
337 #=== FUNCTION ================================================================
338 # NAME: import_modules
339 # PARAMETERS: module_path - string - abs. path to the directory the modules
340 # are stored
341 # RETURNS: nothing
342 # DESCRIPTION: each file in module_path which ends with '.pm' is imported by
343 # "require 'file';"
344 #===============================================================================
345 sub import_modules {
346 daemon_log(" ", 1);
348 if (not -e $modules_path) {
349 daemon_log("ERROR: cannot find directory or directory is not readable: $modules_path", 1);
350 }
352 opendir (DIR, $modules_path) or die "ERROR while loading modules from directory $modules_path : $!\n";
353 while (defined (my $file = readdir (DIR))) {
354 if (not $file =~ /(\S*?).pm$/) {
355 next;
356 }
357 eval { require $file; };
358 if ($@) {
359 daemon_log("ERROR: gosa-sd could not load module $file", 1);
360 daemon_log("$@", 5);
361 next;
362 }
363 my $mod_name = $1;
364 #my $module_tag_hash = eval( $mod_name.'::get_module_tags()' );
366 my $info = eval($mod_name.'::get_module_info()');
367 my ($input_address, $input_key, $input, $input_active, $input_type) = @{$info};
368 $known_modules->{$mod_name} = $info;
370 daemon_log("module $mod_name loaded", 1);
371 }
373 # for debugging
374 #while ( my ($module, $tag_hash) = each(%$known_modules)) {
375 # print "\tmodule: $module"."\n";
376 # print "\ttags: ".join(", ", keys(%$tag_hash))."\n";
377 #}
378 close (DIR);
379 }
382 #=== FUNCTION ================================================================
383 # NAME: sig_int_handler
384 # PARAMETERS: signal - string - signal arose from system
385 # RETURNS: noting
386 # DESCRIPTION: handels tasks to be done befor signal becomes active
387 #===============================================================================
388 sub sig_int_handler {
389 my ($signal) = @_;
390 if($server){
391 close($server);
392 daemon_log("daemon server closed", 1);
393 }
394 if( -p $arp_fifo_path ) {
395 close $arp_fifo ;
396 unlink($arp_fifo_path) ;
397 daemon_log("ARP_FIFO closed", 1) ;
398 }
400 if($gosa_server){
401 close($gosa_server);
402 daemon_log("gosa server closed", 1);
403 }
405 print STDERR "$signal\n";
407 exit(1);
408 }
409 $SIG{INT} = \&sig_int_handler;
412 #=== FUNCTION ================================================================
413 # NAME: activating_child
414 # PARAMETERS: msg - string - incoming message
415 # host - string - host from which the incomming message comes
416 # RETURNS: nothing
417 # DESCRIPTION: handels the distribution of incoming messages to working childs
418 #===============================================================================
419 sub activating_child {
420 my ($msg, $host, $client) = @_;
421 my $child = &get_processing_child();
422 my $pipe_wr = $$child{'pipe_wr'};
423 my $pipe_rd = $$child{'pipe_rd'};
424 $$child{client_ref} = $client;
426 daemon_log("activating: childpid:$$child{'pid'}", 5);
428 print $pipe_wr $msg.".".$host."\n";
430 return;
431 }
434 #=== FUNCTION ================================================================
435 # NAME: get_processing_child
436 # PARAMETERS: nothing
437 # RETURNS: child - hash - holding the process id and the references to the pipe
438 # handles pipe_wr and pipe_rd
439 # DESCRIPTION: handels the forking, reactivating and keeping alive tasks
440 #===============================================================================
441 sub get_processing_child {
442 my $child;
444 while(my ($key, $val) = each(%free_child)) {
445 my $exitus_pid = waitpid($key, WNOHANG);
446 if($exitus_pid != 0) {
447 delete $free_child{$key};
448 }
449 daemon_log("free child:$key", 5);
450 }
451 # check @free_child and @busy_child
452 my $free_len = scalar(keys(%free_child));
453 my $busy_len = scalar(keys(%busy_child));
454 daemon_log("free children $free_len, busy children $busy_len", 5);
456 # if there is a free child, let the child work
457 if($free_len > 0){
458 my @keys = keys(%free_child);
459 $child = $free_child{$keys[0]};
460 if(defined $child) {
461 $busy_child{$$child{'pid'}} = $child ;
462 delete $free_child{$$child{'pid'}};
463 }
464 return $child;
465 }
467 # no free child, try to fork another one
468 if($free_len + $busy_len < $child_max) {
470 daemon_log("not enough children, create a new one", 5);
472 # New pipes for communication
473 my( $PARENT_wr, $PARENT_rd );
474 my( $CHILD_wr, $CHILD_rd );
475 pipe( $CHILD_rd, $PARENT_wr );
476 pipe( $PARENT_rd, $CHILD_wr );
477 $PARENT_wr->autoflush(1);
478 $CHILD_wr->autoflush(1);
480 ############
481 # fork child
482 ############
483 my $child_pid = fork();
485 #CHILD
486 if($child_pid == 0) {
487 # Close unused pipes
488 close( $CHILD_rd );
489 close( $CHILD_wr );
490 while( 1 ) {
491 my $rbits = "";
492 vec( $rbits, fileno $PARENT_rd , 1 ) = 1;
493 my $nf = select($rbits, undef, undef, $child_timeout);
494 if($nf < 0 ) {
495 die "select(): $!\n";
496 } elsif (! $nf) {
497 # if already child_min childs are alive, then leave loop
498 $free_len = scalar(keys(%free_child));
499 $busy_len = scalar(keys(%busy_child));
500 if($free_len + $busy_len >= $child_min) {
501 last;
502 } else {
503 redo;
504 }
505 }
507 # a job for a child arise
508 if ( vec $rbits, fileno $PARENT_rd, 1 ) {
509 # read everything from pipe
510 my $msg = "";
511 $PARENT_rd->blocking(0);
512 while(1) {
513 my $read = <$PARENT_rd>;
514 if(not defined $read) { last}
515 $msg .= $read;
516 }
518 ######################################
519 # forward msg to all imported modules
520 no strict "refs";
521 my $answer;
522 my %act_modules = %$known_modules;
523 while( my ($module, $info) = each(%act_modules)) {
524 &daemon_log("##########", 5);
525 my $tmp = &{ $module."::process_incoming_msg" }($msg);
526 if (defined $tmp) {
527 $answer = $tmp;
528 }
529 &daemon_log("##########", 5);
530 }
532 #&print_known_daemons();
533 #&print_known_clients();
535 daemon_log("processing of msg finished", 5);
537 if (defined $answer) {
538 print $PARENT_wr $answer."\n";
539 daemon_log("with answer: $answer", 5);
540 daemon_log(" ", 5);
541 } else {
542 print $PARENT_wr "done"."\n";
543 daemon_log(" ", 5);
544 }
545 redo;
546 }
547 }
548 # childs leaving the loop are allowed to die
549 exit(0);
552 #PARENT
553 } else {
554 # Close unused pipes
555 close( $PARENT_rd );
556 close( $PARENT_wr );
558 # add child to child alive hash
559 my %child_hash = (
560 'pid' => $child_pid,
561 'pipe_wr' => $CHILD_wr,
562 'pipe_rd' => $CHILD_rd,
563 'client_ref' => "",
564 );
566 $child = \%child_hash;
567 $busy_child{$$child{'pid'}} = $child;
568 return $child;
569 }
570 }
571 }
574 #=== FUNCTION ================================================================
575 # NAME: read_from_socket
576 # PARAMETERS: socket fh -
577 # RETURNS: result string - readed characters from socket
578 # DESCRIPTION: reads data from socket in 16 byte steps
579 #===============================================================================
580 sub read_from_socket {
581 my ($socket) = @_;
582 my $result = "";
584 $socket->blocking(1);
585 $result = <$socket>;
587 $socket->blocking(0);
588 while ( my $char = <$socket> ) {
589 if (not defined $char) { last }
590 $result .= $char;
591 }
593 return $result;
594 }
597 #=== FUNCTION ================================================================
598 # NAME: print_known_daemons
599 # PARAMETERS: nothing
600 # RETURNS: nothing
601 # DESCRIPTION: nomen est omen
602 #===============================================================================
603 sub print_known_daemons {
604 my ($tmp) = @_ ;
605 print "####################################\n";
606 print "# status of known_daemons\n";
607 $shmda->shlock(LOCK_EX);
608 my @hosts = keys %$known_daemons;
609 foreach my $host (@hosts) {
610 my $status = $known_daemons->{$host}->{status} ;
611 my $passwd = $known_daemons->{$host}->{passwd};
612 my $timestamp = $known_daemons->{$host}->{timestamp};
613 print "$host\n";
614 print "\tstatus: $status\n";
615 print "\tpasswd: $passwd\n";
616 print "\ttimestamp: $timestamp\n";
617 }
618 $shmda->shunlock(LOCK_EX);
619 print "####################################\n";
620 return;
621 }
624 #=== FUNCTION ================================================================
625 # NAME: create_known_daemon
626 # PARAMETERS: hostname - string - key for the hash known_daemons
627 # RETURNS: nothing
628 # DESCRIPTION: creates a dummy entry for hostname in known_daemons
629 #===============================================================================
630 sub create_known_daemon {
631 my ($hostname) = @_;
632 $shmda->shlock(LOCK_EX);
633 $known_daemons->{$hostname} = {};
634 $known_daemons->{$hostname}->{status} = "none";
635 $known_daemons->{$hostname}->{passwd} = "none";
636 $known_daemons->{$hostname}->{timestamp} = "none";
637 $shmda->shunlock(LOCK_EX);
638 return;
639 }
642 #=== FUNCTION ================================================================
643 # NAME: add_content2known_daemons
644 # PARAMETERS: hostname - string - ip address and port of host (required)
645 # status - string - (optional)
646 # passwd - string - (optional)
647 # mac_address - string - mac address of host (optional)
648 # RETURNS: nothing
649 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
650 #===============================================================================
651 sub add_content2known_daemons {
652 my $arg = {
653 hostname => undef, status => undef, passwd => undef,
654 mac_address => undef, events => undef,
655 @_ };
656 my $hostname = $arg->{hostname};
657 my $status = $arg->{status};
658 my $passwd = $arg->{passwd};
659 my $mac_address = $arg->{mac_address};
660 my $events = $arg->{events};
662 if (not defined $hostname) {
663 daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
664 return;
665 }
667 my ($seconds, $minutes, $hours, $monthday, $month,
668 $year, $weekday, $yearday, $sommertime) = localtime(time);
669 $hours = $hours < 10 ? $hours = "0".$hours : $hours;
670 $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
671 $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
672 $month+=1;
673 $month = $month < 10 ? $month = "0".$month : $month;
674 $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
675 $year+=1900;
676 my $t = "$year$month$monthday$hours$minutes$seconds";
678 $shmda->shlock(LOCK_EX);
679 if (defined $status) {
680 $known_daemons->{$hostname}->{status} = $status;
681 }
682 if (defined $passwd) {
683 $known_daemons->{$hostname}->{passwd} = $passwd;
684 }
685 if (defined $mac_address) {
686 $known_daemons->{$hostname}->{mac_address} = $mac_address;
687 }
688 if (defined $events) {
689 $known_daemons->{$hostname}->{events} = $events;
690 }
691 $known_daemons->{$hostname}->{timestamp} = $t;
692 $shmda->shlock(LOCK_EX);
693 return;
694 }
697 #=== FUNCTION ================================================================
698 # NAME: update_known_daemons
699 # PARAMETERS: hostname - string - ip address and port of host (required)
700 # status - string - (optional)
701 # passwd - string - (optional)
702 # client - string - ip address and port of client (optional)
703 # RETURNS: nothing
704 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
705 #===============================================================================
706 sub update_known_daemons {
707 my $arg = {
708 hostname => undef, status => undef, passwd => undef,
709 @_ };
710 my $hostname = $arg->{hostname};
711 my $status = $arg->{status};
712 my $passwd = $arg->{passwd};
714 if (not defined $hostname) {
715 daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
716 return;
717 }
719 my ($seconds, $minutes, $hours, $monthday, $month,
720 $year, $weekday, $yearday, $sommertime) = localtime(time);
721 $hours = $hours < 10 ? $hours = "0".$hours : $hours;
722 $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
723 $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
724 $month+=1;
725 $month = $month < 10 ? $month = "0".$month : $month;
726 $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
727 $year+=1900;
728 my $t = "$year$month$monthday$hours$minutes$seconds";
730 $shmda->shlock(LOCK_EX);
731 if (defined $status) {
732 $known_daemons->{$hostname}->{status} = $status;
733 }
734 if (defined $passwd) {
735 $known_daemons->{$hostname}->{passwd} = $passwd;
736 }
737 $known_daemons->{$hostname}->{timestamp} = $t;
738 $shmda->shunlock(LOCK_EX);
739 return;
740 }
743 #=== FUNCTION ================================================================
744 # NAME: print_known_clients
745 # PARAMETERS: nothing
746 # RETURNS: nothing
747 # DESCRIPTION: nomen est omen
748 #===============================================================================
749 #sub print_known_clients {
750 #
751 # print "####################################\n";
752 # print "# status of known_clients\n";
753 # $shmcl->shlock(LOCK_EX);
754 # my @hosts = keys %$known_clients;
755 # if (@hosts) {
756 # foreach my $host (@hosts) {
757 # my $status = $known_clients->{$host}->{status} ;
758 # my $passwd = $known_clients->{$host}->{passwd};
759 # my $timestamp = $known_clients->{$host}->{timestamp};
760 # my $mac_address = $known_clients->{$host}->{mac_address};
761 # my $events = $known_clients->{$host}->{events};
762 # print "$host\n";
763 # print "\tstatus: $status\n";
764 # print "\tpasswd: $passwd\n";
765 # print "\ttimestamp: $timestamp\n";
766 # print "\tmac_address: $mac_address\n";
767 # print "\tevents: $events\n";
768 # }
769 # }
770 # $shmcl->shunlock(LOCK_EX);
771 # print "####################################\n";
772 # return;
773 #}
776 #=== FUNCTION ================================================================
777 # NAME: create_known_client
778 # PARAMETERS: hostname - string - key for the hash known_clients
779 # RETURNS: nothing
780 # DESCRIPTION: creates a dummy entry for hostname in known_clients
781 #===============================================================================
782 sub create_known_client {
783 my ($hostname) = @_;
785 my $entry = { table=>'known_clients',
786 hostname=>$hostname,
787 status=>'none',
788 hostkey=>'none',
789 timestamp=>'none',
790 macaddress=>'none',
791 events=>'none',
792 };
793 my $res = $known_clients_db->add_dbentry($entry);
794 if ($res > 0) {
795 daemon_log("ERROR: cannot add entry to known_clients.db: $res", 1);
796 }
798 # $shmcl->shlock(LOCK_EX);
799 # $known_clients->{$hostname} = {};
800 # $known_clients->{$hostname}->{status} = "none";
801 # $known_clients->{$hostname}->{passwd} = "none";
802 # $known_clients->{$hostname}->{timestamp} = "none";
803 # $known_clients->{$hostname}->{mac_address} = "none";
804 # $known_clients->{$hostname}->{events} = "none";
805 # $shmcl->shunlock(LOCK_EX);
806 return;
807 }
810 #=== FUNCTION ================================================================
811 # NAME: add_content2known_clients
812 # PARAMETERS: hostname - string - ip address and port of host (required)
813 # status - string - (optional)
814 # passwd - string - (optional)
815 # mac_address - string - (optional)
816 # events - string - event of client, executable skripts
817 # under /etc/gosac/events
818 # RETURNS: nothing
819 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
820 #===============================================================================
821 sub update_known_clients {
822 my $arg = {
823 hostname => undef, status => undef, hostkey => undef,
824 macaddress => undef, events => undef, timestamp=>undef,
825 @_ };
826 my $hostname = $arg->{hostname};
827 my $status = $arg->{status};
828 my $hostkey = $arg->{hostkey};
829 my $macaddress = $arg->{macaddress};
830 my $events = $arg->{events};
831 my $timestamp = $arg->{timestamp};
833 if (not defined $hostname) {
834 daemon_log("ERROR: function add_content2known_clients is not invoked with requiered parameter 'hostname'", 1);
835 return;
836 }
838 my ($seconds, $minutes, $hours, $monthday, $month,
839 $year, $weekday, $yearday, $sommertime) = localtime(time);
840 $hours = $hours < 10 ? $hours = "0".$hours : $hours;
841 $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
842 $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
843 $month+=1;
844 $month = $month < 10 ? $month = "0".$month : $month;
845 $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
846 $year+=1900;
847 my $t = "$year$month$monthday$hours$minutes$seconds";
849 my $change_entry = { table=>'known_clients',
850 where=>'hostname',
851 timestamp=>$t,
852 };
855 if (defined $status) {
856 $change_entry->{status} = $status;
857 }
858 if (defined $hostkey) {
859 $change_entry->{hostkey} = $hostkey;
860 }
861 if (defined $macaddress) {
862 $change_entry->{macaddress} = $macaddress;
863 }
864 if (defined $events) {
865 $change_entry->{events} = $events;
866 }
868 $known_clients->change_dbentry($change_entry);
869 return;
870 }
873 #=== FUNCTION ================================================================
874 # NAME:
875 # PARAMETERS:
876 # RETURNS:
877 # DESCRIPTION:
878 #===============================================================================
879 sub clean_up_known_clients {
880 my ($address) = @_ ;
882 if (not exists $known_clients->{$address}) {
883 daemon_log("cannot prune known_clients from $address, client not known", 5);
884 return;
885 }
887 delete $known_clients->{$address};
889 # send bus a msg that address was deleted from known_clients
890 my $out_hash = &create_xml_hash('delete_client', $server_address, $bus_address, $address);
891 &send_msg_hash2bus($out_hash);
893 daemon_log("client $address deleted from known_clients because of multiple down time", 3);
894 return;
895 }
898 #=== FUNCTION ================================================================
899 # NAME: update_known_clients
900 # PARAMETERS: hostname - string - ip address and port of host (required)
901 # status - string - (optional)
902 # passwd - string - (optional)
903 # client - string - ip address and port of client (optional)
904 # RETURNS: nothing
905 # DESCRIPTION: nome est omen and updates each time the timestamp of hostname
906 #===============================================================================
907 #sub update_known_clients {
908 # my $arg = {
909 # hostname => undef, status => undef, passwd => undef,
910 # mac_address => undef, events => undef,
911 # @_ };
912 # my $hostname = $arg->{hostname};
913 # my $status = $arg->{status};
914 # my $passwd = $arg->{passwd};
915 # my $mac_address = $arg->{mac_address};
916 # my $events = $arg->{events};
917 #
918 # if (not defined $hostname) {
919 # daemon_log("ERROR: function add_content2known_daemons is not invoked with requiered parameter 'hostname'", 1);
920 # return;
921 # }
922 #
923 # my ($seconds, $minutes, $hours, $monthday, $month,
924 # $year, $weekday, $yearday, $sommertime) = localtime(time);
925 # $hours = $hours < 10 ? $hours = "0".$hours : $hours;
926 # $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
927 # $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
928 # $month+=1;
929 # $month = $month < 10 ? $month = "0".$month : $month;
930 # $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
931 # $year+=1900;
932 # my $t = "$year$month$monthday$hours$minutes$seconds";
933 #
934 # if (defined $status) {
935 # $known_clients->{$hostname}->{status} = $status;
936 # }
937 # if (defined $passwd) {
938 # $known_clients->{$hostname}->{passwd} = $passwd;
939 # }
940 # if (defined $mac_address) {
941 # $known_clients->{$hostname}->{mac_address} = $mac_address;
942 # }
943 # if (defined $events) {
944 # $known_clients->{$hostname}->{events} = $events;
945 # }
946 # $known_clients_db->{$hostname}->{timestamp} = $t;
947 # return;
948 #}
956 #==== MAIN = main ==============================================================
958 # parse commandline options
959 Getopt::Long::Configure( "bundling" );
960 GetOptions("h|help" => \&usage,
961 "c|config=s" => \$cfg_file,
962 "f|foreground" => \$foreground,
963 "v|verbose+" => \$verbose,
964 "no-bus+" => \$no_bus,
965 "no-arp+" => \$no_arp,
966 );
968 # read and set config parameters
969 &check_cmdline_param ;
970 &read_configfile;
971 &check_pid;
973 $SIG{CHLD} = 'IGNORE';
975 # restart daemon log file
976 if(-e $log_file ) { unlink $log_file }
977 daemon_log(" ", 1);
978 daemon_log("$0 started!", 1);
980 # Just fork, if we"re not in foreground mode
981 if( ! $foreground ) { $pid = fork(); }
982 else { $pid = $$; }
984 # Do something useful - put our PID into the pid_file
985 if( 0 != $pid ) {
986 open( LOCK_FILE, ">$pid_file" );
987 print LOCK_FILE "$pid\n";
988 close( LOCK_FILE );
989 if( !$foreground ) { exit( 0 ) };
990 }
992 # connect to gosa-si job queue
993 my @job_col_names = ("timestamp", "status", "result", "headertag", "targettag", "xmlmessage", "macaddress");
994 $job_db = GOSA::DBsqlite->new($job_queue_file_name);
995 $job_db->create_table('jobs', \@job_col_names);
997 # connect to known_clients_db
998 my @clients_col_names = ('hostname', 'status', 'hostkey', 'timestamp', 'macaddress', 'events');
999 $known_clients_db = GOSA::DBsqlite->new($known_clients_file_name);
1000 $known_clients_db->create_table('known_clients', \@clients_col_names);
1002 # import all modules
1003 &import_modules;
1005 # check wether all modules are gosa-si valid passwd check
1007 # create reading and writing vectors
1008 my $rbits = my $wbits = my $ebits = "";
1010 # add all module inputs to listening vector
1011 while( my ($mod_name, $info) = each %$known_modules ) {
1012 my ($input_address, $input_key, $input, $input_activ, $input_type) = @{$info};
1013 vec($rbits, fileno $input, 1) = 1;
1015 }
1018 ## start arp fifo
1019 #if ($no_arp > 0) {
1020 # $arp_activ = "off";
1021 #}
1022 #my $my_fifo;
1023 #if($arp_activ eq "on") {
1024 # daemon_log(" ", 1);
1025 # $my_fifo = &open_fifo($arp_fifo_path);
1026 # if($my_fifo == 0) { die "fifo file disappeared\n" }
1027 # sysopen($arp_fifo, $arp_fifo_path, O_RDWR) or die "can't read from $arp_fifo: $!" ;
1028 #
1029 # vec($rbits, fileno $arp_fifo, 1) = 1;
1030 #}
1031 #
1034 ##################################
1035 #everything ready, okay, lets start
1036 ##################################
1037 while(1) {
1039 # add all handles from the childs
1040 while ( my ($pid, $child_hash) = each %busy_child ) {
1042 # check whether process still exists
1043 my $exitus_pid = waitpid($pid, WNOHANG);
1044 if($exitus_pid != 0) {
1045 delete $busy_child{$pid};
1046 next;
1047 }
1049 # add child fhd to the listener
1050 my $fhd = $$child_hash{'pipe_rd'};
1051 vec($rbits, fileno $fhd, 1) = 1;
1052 }
1054 my ($rout, $wout);
1055 my $nf = select($rout=$rbits, $wout=$wbits, undef, $job_queue_timeout);
1057 # error handling
1058 if($nf < 0 ) {
1059 }
1062 if($arp_activ eq "on" && vec($rout, fileno $arp_fifo, 1)) {
1063 my $in_msg = <$arp_fifo>;
1064 chomp($in_msg);
1065 print "arp_activ: msg: $in_msg\n";
1066 my $act_passwd = $known_daemons->{$bus_address}->{passwd};
1067 print "arp_activ: arp_passwd: $act_passwd\n";
1069 my $in_msg_hash = $xml->XMLin($in_msg, ForceArray=>1);
1071 my $target = &get_content_from_xml_hash($in_msg_hash, 'target');
1073 if ($target eq $server_address) {
1074 print "arp_activ: forward to server\n";
1075 my $arp_cipher = &create_ciphering($act_passwd);
1076 my $crypted_msg = &encrypt_msg($in_msg, $arp_cipher);
1077 &activating_child($crypted_msg, $server_ip);
1078 } else {
1079 print "arp_activ: send to bus\n";
1080 &send_msg_hash2address($in_msg_hash, $bus_address);
1081 }
1082 print "\n";
1083 }
1086 # check input fhd of all modules
1087 while ( my ($mod_name, $info) = each %$known_modules) {
1088 my $input_fhd = @{$info}[2];
1089 my $input_activ = @{$info}[3];
1090 if (vec($rout, fileno $input_fhd, 1) && $input_activ eq 'on') {
1091 daemon_log(" ", 1);
1092 my $client = $input_fhd->accept();
1093 my $other_end = getpeername($client);
1094 if(not defined $other_end) {
1095 daemon_log("client cannot be identified: $!");
1096 } else {
1097 my ($port, $iaddr) = unpack_sockaddr_in($other_end);
1098 my $actual_ip = inet_ntoa($iaddr);
1099 daemon_log("accept client at daemon socket from $actual_ip", 5);
1100 my $in_msg = &read_from_socket($client);
1101 if(defined $in_msg){
1102 chomp($in_msg);
1103 &activating_child($in_msg, $actual_ip, $client);
1104 } else {
1105 daemon_log("cannot read from $actual_ip", 5);
1106 }
1107 }
1108 #close($client);
1110 }
1111 }
1113 # check all processing childs whether they are finished ('done') or
1114 while ( my ($pid, $child_hash) = each %busy_child ) {
1115 my $fhd = $$child_hash{'pipe_rd'};
1117 if (vec($rout, fileno $fhd, 1) ) {
1118 daemon_log("process child $pid is ready to read", 5);
1120 $fhd->blocking(1);
1121 my $in_msg = <$fhd>;
1122 $fhd->blocking(0);
1123 my $part_in_msg;
1124 while ($part_in_msg = <$fhd>) {
1125 if (not defined $part_in_msg) {
1126 last;
1127 }
1128 $in_msg .= $part_in_msg;
1129 }
1130 chomp($in_msg);
1132 daemon_log("process child read: $in_msg", 5);
1133 if (not defined $in_msg) {
1134 next;
1135 } elsif ($in_msg =~ "done") {
1136 delete $busy_child{$pid};
1137 $free_child{$pid} = $child_hash;
1139 } else {
1140 # send computed answer back to connected client
1141 my $act_client = $busy_child{$pid}{client_ref};
1142 print $act_client $in_msg."\n";
1144 #my $act_pipe = $busy_child{$pid}{pipe_rd};
1145 delete $busy_child{$pid};
1146 $free_child{$pid} = $child_hash;
1148 # give the client a chance to read
1149 sleep(2);
1150 close ($act_client);
1151 }
1152 }
1153 }
1155 # check gosa job queue for jobs with executable timestamp
1156 my ($seconds, $minutes, $hours, $monthday, $month,
1157 $year, $weekday, $yearday, $sommertime) = localtime(time);
1158 $hours = $hours < 10 ? $hours = "0".$hours : $hours;
1159 $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
1160 $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
1161 $month+=1;
1162 $month = $month < 10 ? $month = "0".$month : $month;
1163 $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
1164 $year+=1900;
1165 my $timestamp = "$year$month$monthday$hours$minutes$seconds";
1168 my $res = $job_db->select_dbentry( { table=>$job_queue_table_name, status=>'waiting', timestamp=>$timestamp } );
1170 while( my ($id, $hit) = each %{$res} ) {
1172 my $jobdb_id = $hit->{ROWID};
1173 my $macaddress = $hit->{macaddress};
1174 my $job_msg_hash = &transform_msg2hash($hit->{xmlmessage});
1175 my $out_msg_hash = $job_msg_hash;
1176 my $res_hash = $known_clients_db->select_dbentry( {table=>'known_clients', macaddress=>$macaddress} );
1177 # expect macaddress is unique!!!!!!
1178 my $target = $res_hash->{1}->{hostname};
1180 if (not defined $target) {
1181 &daemon_log("ERROR: no host found for mac address: $job_msg_hash->{mac}[0]", 1);
1182 &daemon_log("xml message: $hit->{xmlmessage}", 5);
1183 my $update_hash = { table=>$job_queue_table_name,
1184 update=> [ { status=>['error'], result=>["no host found for mac address"] } ],
1185 where=> [ { ROWID=>[$jobdb_id] } ],
1186 };
1187 my $res = $job_db->update_dbentry($update_hash);
1189 next;
1190 }
1192 # add target
1193 print "select: target: $target\n";
1194 &add_content2xml_hash($out_msg_hash, "target", $target);
1196 # add new header
1197 my $out_header = $job_msg_hash->{header}[0];
1198 $out_header =~ s/job_/gosa_/;
1199 print "select: header: $out_header\n";
1200 delete $out_msg_hash->{header};
1201 &add_content2xml_hash($out_msg_hash, "header", $out_header);
1203 # add sqlite_id
1204 &add_content2xml_hash($out_msg_hash, "jobdb_id", $jobdb_id);
1206 my $out_msg = &create_xml_string($out_msg_hash);
1208 # encrypt msg as a GosaPackage module
1209 my $cipher = &create_ciphering($gosa_passwd);
1210 my $crypted_out_msg = &encrypt_msg($out_msg, $cipher);
1212 my $error = &send_msg_hash2address($out_msg_hash, "$gosa_ip:$gosa_port", $gosa_passwd);
1214 #######################
1215 # TODO exchange ROWID with jobid, insert column jobid in table jobs befor
1217 if ($error == 0) {
1218 my $sql = "UPDATE '$job_queue_table_name' SET status='processing', targettag='$target' WHERE ROWID='$jobdb_id'";
1219 my $res = $job_db->exec_statement($sql);
1220 } else {
1221 my $update_hash = { table=>$job_queue_table_name,
1222 update=> [ { status=>'error' } ],
1223 where=> [ { ROWID=>$jobdb_id } ],
1224 };
1225 my $res = $job_db->update_dbentry($update_hash);
1226 }
1228 }
1231 }