3 # This module impliments the protocal mode for a dx cluster
5 # Copyright (c) 1998 Dirk Koopman G1TLH
30 use Time::HiRes qw(gettimeofday tv_interval);
39 use vars qw($VERSION $BRANCH);
40 $VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
41 $BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/ || (0,0));
42 $main::build += $VERSION;
43 $main::branch += $BRANCH;
45 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
46 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
47 $pingint $obscount %pc19list $chatdupeage
48 %nodehops $baddx $badspotter $badnode $censorpc $rspfcheck
49 $allowzero $decode_dk0wcy $send_opernam @checklist);
51 $pc11_max_age = 1*3600; # the maximum age for an incoming 'real-time' pc11
52 $pc23_max_age = 1*3600; # the maximum age for an incoming 'real-time' pc23
54 $last_hour = time; # last time I did an hourly periodic update
55 %pings = (); # outstanding ping requests outbound
56 %rcmds = (); # outstanding rcmd requests outbound
57 %nodehops = (); # node specific hop control
58 %pc19list = (); # list of outstanding PC19s that haven't had PC16s on them
60 $censorpc = 1; # Do a BadWords::check on text fields and reject things
61 # loads of 'bad things'
62 $baddx = new DXHash "baddx";
63 $badspotter = new DXHash "badspotter";
64 $badnode = new DXHash "badnode";
65 $last10 = $last_pc50 = time;
69 $eph_info_restime = 60*60;
70 $eph_pc34_restime = 30;
73 $chatdupeage = 20 * 60 * 60;
77 [ qw(i c c m bp bc c) ], # pc10
78 [ qw(i f m d t m c c h) ], # pc11
79 [ qw(i c bm m bm bm p h) ], # pc12
83 undef , # pc16 has to be validated manually
84 [ qw(i c c h) ], # pc17
86 undef , # pc19 has to be validated manually
87 undef , # pc20 no validation
88 [ qw(i c m h) ], # pc21
89 undef , # pc22 no validation
90 [ qw(i d n n n n m c c h) ], # pc23
91 [ qw(i c p h) ], # pc24
92 [ qw(i c c n n) ], # pc25
93 [ qw(i f m d t m c c bc) ], # pc26
94 [ qw(i d n n n n m c c bc) ], # pc27
95 [ qw(i c c m c d t p m bp n p bp bc) ], # pc28
96 [ qw(i c c n m) ], # pc29
97 [ qw(i c c n) ], # pc30
98 [ qw(i c c n) ], # pc31
99 [ qw(i c c n) ], # pc32
100 [ qw(i c c n) ], # pc33
101 [ qw(i c c m) ], # pc34
102 [ qw(i c c m) ], # pc35
103 [ qw(i c c m) ], # pc36
104 [ qw(i c c n m) ], # pc37
105 undef, # pc38 not interested
106 [ qw(i c m) ], # pc39
107 [ qw(i c c m p n) ], # pc40
108 [ qw(i c n m h) ], # pc41
109 [ qw(i c c n) ], # pc42
110 undef, # pc43 don't handle it
111 [ qw(i c c n m m c) ], # pc44
112 [ qw(i c c n m) ], # pc45
113 [ qw(i c c n) ], # pc46
116 [ qw(i c m h) ], # pc49
117 [ qw(i c n h) ], # pc50
118 [ qw(i c c n) ], # pc51
140 [ qw(i d n n n n n n m m m c c h) ], # pc73
151 [ qw(i c c c m) ], # pc84
152 [ qw(i c c c m) ], # pc85
157 [ qw(i c n) ], # pc90
160 # use the entry in the check list to check the field list presented
161 # return OK if line NOT in check list (for now)
166 return 0 if $n < 0 || $n > @checklist;
167 my $ref = $checklist[$n];
168 return 0 unless ref $ref;
171 for ($i = 1; $i < @$ref; $i++) {
172 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
173 return 0 unless $act;
174 next if $blank && $_[$i] =~ /^[ \*]$/;
176 return $i unless is_callsign($_[$i]);
177 } elsif ($act eq 'i') {
179 } elsif ($act eq 'm') {
180 return $i unless is_pctext($_[$i]);
181 } elsif ($act eq 'p') {
182 return $i unless is_pcflag($_[$i]);
183 } elsif ($act eq 'f') {
184 return $i unless is_freq($_[$i]);
185 } elsif ($act eq 'n') {
186 return $i unless $_[$i] =~ /^[\d ]+$/;
187 } elsif ($act eq 'h') {
188 return $i unless $_[$i] =~ /^H\d\d?$/;
189 } elsif ($act eq 'd') {
190 return $i unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
191 } elsif ($act eq 't') {
192 return $i unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
200 do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
205 # obtain a new connection this is derived from dxchannel
210 my $self = DXChannel::alloc(@_);
212 # add this node to the table, the values get filled in later
215 $main::routeroot->add($call, '5000', Route::here(1)) if $call ne $main::mycall;
220 # this is how a pc connection starts (for an incoming connection)
221 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
222 # all the crap that comes between).
225 my ($self, $line, $sort) = @_;
226 my $call = $self->{call};
227 my $user = $self->{user};
230 my $host = $self->{conn}->{peerhost} || "unknown";
231 Log('DXProt', "$call connected from $host");
233 # remember type of connection
234 $self->{consort} = $line;
235 $self->{outbound} = $sort eq 'O';
236 my $priv = $user->priv;
237 $priv = $user->priv(1) unless $priv;
238 $self->{priv} = $priv; # other clusters can always be 'normal' users
239 $self->{lang} = $user->lang || 'en';
240 $self->{isolate} = $user->{isolate};
241 $self->{consort} = $line; # save the connection type
245 # sort out registration
246 $self->{registered} = 1;
248 # get the output filters
249 $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
250 $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
251 $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
252 $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
253 $self->{routefilter} = Filter::read_in('route', $call, 0) || Filter::read_in('route', 'node_default', 0) unless $self->{isolate} ;
256 # get the INPUT filters (these only pertain to Clusters)
257 $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
258 $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
259 $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
260 $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);
261 $self->{inroutefilter} = Filter::read_in('route', $call, 1) || Filter::read_in('route', 'node_default', 1) unless $self->{isolate};
263 # set unbuffered and no echo
264 $self->send_now('B',"0");
265 $self->send_now('E',"0");
266 $self->conn->echo(0) if $self->conn->can('echo');
268 # ping neighbour node stuff
269 my $ping = $user->pingint;
270 $ping = $pingint unless defined $ping;
271 $self->{pingint} = $ping;
272 $self->{nopings} = $user->nopings || $obscount;
273 $self->{pingtime} = [ ];
274 $self->{pingave} = 999;
275 $self->{metric} ||= 100;
276 $self->{lastping} = $main::systime;
278 # send initialisation string
279 unless ($self->{outbound}) {
283 $self->state('init');
284 $self->{pc50_t} = $main::systime;
286 # send info to all logged in thingies
287 $self->tell_login('loginn');
289 # run a script send the output to the debug file
290 my $script = new Script(lc $call) || new Script('node_default');
291 $script->run($self) if $script;
295 # send outgoing 'challenge'
306 $_[0] =~ s/^PC90\^[-A-Z0-9]+\^\d+\^//;
307 $_[0] =~ s/^PC91\^[-A-Z0-9]+\^\d+\^[-A-Z0-9]+\^//;
315 # $self->SUPER::send($line);
320 # This is the normal pcxx despatcher
324 my ($self, $line) = @_;
326 # remove any incoming PC90 frames
329 my @field = split /\^/, $line;
330 return unless @field;
332 pop @field if $field[-1] eq '~';
334 # print join(',', @field), "\n";
337 # process PC frames, this will fail unless the frame starts PCnn
338 my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
339 unless (defined $pcno && $pcno >= 10 && $pcno <= 99) {
340 dbg("PCPROT: unknown protocol") if isdbg('chanerr');
344 # check for and dump bad protocol messages
345 my $n = check($pcno, @field);
347 dbg("PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")") if isdbg('chanerr');
351 my $origin = $self->{call};
353 my $sub = "handle_$pcno";
355 if ($self->can($sub)) {
356 $self->$sub($pcno, $line, $origin, @field);
358 $self->handle_default($pcno, $line, $origin, @field);
362 # incoming talk commands
371 return if $rspfcheck and !$self->rspfcheck(0, $_[6], $_[1]);
373 # will we allow it at all?
376 if (@bad = BadWords::check($_[3])) {
377 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
382 # is it for me or one of mine?
383 my ($from, $to, $via, $call, $dxchan);
392 # if this is a 'nodx' node then ignore it
393 if ($badnode->in($_[6]) || ($via && $badnode->in($via))) {
394 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
398 # if this is a 'bad spotter' user then ignore it
400 $nossid =~ s/-\d+$//;
401 if ($badspotter->in($nossid)) {
402 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
406 # if we are converting announces to talk is it a dup?
408 if (AnnTalk::is_talk_candidate($from, $_[3]) && AnnTalk::dup($from, $to, $_[3])) {
409 dbg("DXPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
414 # it is here and logged on
415 $dxchan = DXChannel->get($main::myalias) if $to eq $main::mycall;
416 $dxchan = DXChannel->get($to) unless $dxchan;
417 if ($dxchan && $dxchan->is_user) {
419 $dxchan->talk($from, $to, $via, $_[3]);
423 # is it elsewhere, visible on the cluster via the to address?
424 # note: this discards the via unless the to address is on
427 if ($ref = Route::get($to)) {
428 $vref = Route::Node::get($via) if $via;
429 $vref = undef unless $vref && grep $to eq $_, $vref->users;
430 $ref->dxchan->talk($from, $to, $vref ? $via : undef, $_[3], $_[6]);
434 # not visible here, send a message of condolence
436 $ref = Route::get($from);
437 $vref = $ref = Route::Node::get($_[6]) unless $ref;
439 $dxchan = $ref->dxchan;
440 $dxchan->talk($main::mycall, $from, $vref ? $vref->call : undef, $dxchan->msg('talknh', $to) );
452 # route 'foreign' pc26s
454 if ($_[7] ne $main::mycall) {
455 $self->route($_[7], $line);
461 # return if $rspfcheck and !$self->rspfcheck(1, $_[7], $_[6]);
463 # if this is a 'nodx' node then ignore it
464 if ($badnode->in($_[7])) {
465 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
469 # if this is a 'bad spotter' user then ignore it
471 $nossid =~ s/-\d+$//;
472 if ($badspotter->in($nossid)) {
473 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
477 # convert the date to a unix date
478 my $d = cltounix($_[3], $_[4]);
479 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
480 if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
481 dbg("PCPROT: Spot ignored, invalid date or out of range ($_[3] $_[4])\n") if isdbg('chanerr');
486 if ($baddx->in($_[2]) || BadWords::check($_[2]) || $_[2] =~ /COCK/) {
487 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
492 $_[5] =~ s/^\s+//; # take any leading blanks off
493 $_[2] = unpad($_[2]); # take off leading and trailing blanks from spotted callsign
494 if ($_[2] =~ /BUST\w*$/) {
495 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
500 if (@bad = BadWords::check($_[5])) {
501 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
507 my @spot = Spot::prepare($_[1], $_[2], $d, $_[5], $_[6], $_[7]);
508 # global spot filtering on INPUT
509 if ($self->{inspotsfilter}) {
510 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
512 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
517 # this goes after the input filtering, but before the add
518 # so that if it is input filtered, it isn't added to the dup
519 # list. This allows it to come in from a "legitimate" source
520 if (Spot::dup($_[1], $_[2], $d, $_[5], $_[6])) {
521 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
529 # @spot at this point contains:-
530 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
531 # then spotted itu, spotted cq, spotters itu, spotters cq
532 # you should be able to route on any of these
535 # fix up qra locators of known users
536 my $user = DXUser->get_current($spot[4]);
538 my $qra = $user->qra;
539 unless ($qra && is_qra($qra)) {
540 my $lat = $user->lat;
541 my $long = $user->long;
542 if (defined $lat && defined $long) {
543 $user->qra(DXBearing::lltoqra($lat, $long));
548 # send a remote command to a distant cluster if it is visible and there is no
549 # qra locator and we havn't done it for a month.
551 unless ($user->qra) {
553 my $to = $user->homenode;
554 my $last = $user->lastoper || 0;
555 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
556 my $cmd = "forward/opernam $spot[4]";
557 # send the rcmd but we aren't interested in the replies...
558 my $dxchan = $node->dxchan;
559 if ($dxchan && $dxchan->is_clx) {
560 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
562 route(undef, $to, pc34($main::mycall, $to, $cmd));
566 $node = Route::Node::get($to);
568 $dxchan = $node->dxchan;
569 if ($dxchan && $dxchan->is_clx) {
570 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
572 route(undef, $to, pc34($main::mycall, $to, $cmd));
576 $user->lastoper($main::systime);
585 $r = Local::spot($self, @spot);
587 # dbg("Local::spot1 error $@") if isdbg('local') if $@;
590 # DON'T be silly and send on PC26s!
591 return if $pcno == 26;
593 # send out the filtered spots
594 send_dx_spot($self, $line, @spot) if @spot;
605 # return if $rspfcheck and !$self->rspfcheck(1, $_[5], $_[1]);
607 # announce duplicate checking
608 $_[3] =~ s/^\s+//; # remove leading blanks
612 if (@bad = BadWords::check($_[3])) {
613 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
618 # if this is a 'nodx' node then ignore it
619 if ($badnode->in($_[5])) {
620 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
624 # if this is a 'bad spotter' user then ignore it
626 $nossid =~ s/-\d+$//;
627 if ($badspotter->in($nossid)) {
628 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
634 if ((($dxchan = DXChannel->get($_[2])) && $dxchan->is_user) || $_[4] =~ /^[\#\w.]+$/){
635 $self->send_chat($line, @_[1..6]);
636 } elsif ($_[2] eq '*' || $_[2] eq $main::mycall) {
638 # ignore something that looks like a chat line coming in with sysop
639 # flag - this is a kludge...
640 if ($_[3] =~ /^\#\d+ / && $_[4] eq '*') {
641 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
645 # here's a bit of fun, convert incoming ann with a callsign in the first word
646 # or one saying 'to <call>' to a talk if we can route to the recipient
648 my $call = AnnTalk::is_talk_candidate($_[1], $_[3]);
650 my $ref = Route::get($call);
652 $dxchan = $ref->dxchan;
653 $dxchan->talk($_[1], $call, undef, $_[3], $_[5]) if $dxchan != $self;
660 $self->send_announce($line, @_[1..6]);
662 $self->route($_[2], $line);
674 if (eph_dup($line)) {
675 dbg("PCPROT: dup PC16 detected") if isdbg('chanerr');
682 my $newline = "PC16^";
684 # do I want users from this channel?
685 unless ($self->user->wantpc16) {
686 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
690 if ($ncall eq $main::mycall) {
691 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
694 my $parent = Route::Node::get($ncall);
696 # if there is a parent, proceed, otherwise if there is a latent PC19 in the PC19list,
697 # fix it up in the routing tables and issue it forth before the PC16
699 my $nl = $pc19list{$ncall};
701 if ($nl && @_ > 3) { # 3 because of the hop count!
703 # this is a new (remembered) node, now attach it to me if it isn't in filtered
704 # and we haven't disallowed it
705 my $user = DXUser->get_current($ncall);
707 $user = DXUser->new($ncall);
709 $user->priv(1); # I have relented and defaulted nodes
711 $user->homenode($ncall);
715 my $wantpc19 = $user->wantroutepc19;
716 if ($wantpc19 || !defined $wantpc19) {
717 my $new = Route->new($ncall); # throw away
718 if ($self->in_filter_route($new)) {
721 $parent = Route::Node::get($_->[0]);
722 $dxchan = $parent->dxchan if $parent;
723 if ($dxchan && $dxchan ne $self) {
724 dbg("PCPROT: PC19 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
728 my $r = $parent->add($ncall, $_->[1], $_->[2]);
729 push @nrout, $r unless @nrout;
732 $user->wantroutepc19(1) unless defined $wantpc19; # for now we work on the basis that pc16 = real route
733 $user->lastin($main::systime) unless DXChannel->get($ncall);
736 # route the pc19 - this will cause 'stuttering PC19s' for a while
737 $self->route_pc19($origin, $line, @nrout) if @nrout ;
738 $parent = Route::Node::get($ncall);
740 dbg("PCPROT: lost $ncall after sending PC19 for it?");
746 delete $pc19list{$ncall};
749 dbg("PCPROT: Node $ncall not in config") if isdbg('chanerr');
754 $dxchan = $parent->dxchan;
755 if ($dxchan && $dxchan ne $self) {
756 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
760 # input filter if required
761 return unless $self->in_filter_route($parent);
766 for ($i = 2; $i < $#_; $i++) {
767 my ($call, $conf, $here) = $_[$i] =~ /^(\S+) (\S) (\d)/o;
768 next unless $call && $conf && defined $here && is_callsign($call);
769 next if $call eq $main::mycall;
771 eph_del_regex("^PC17\\^$call\\^$ncall");
773 $conf = $conf eq '*';
775 # reject this if we think it is a node already
776 my $r = Route::Node::get($call);
777 my $u = DXUser->get_current($call) unless $r;
778 if ($r || ($u && $u->is_node)) {
779 dbg("PCPROT: $call is a node") if isdbg('chanerr');
783 $r = Route::User::get($call);
784 my $flags = Route::here($here)|Route::conf($conf);
787 my $au = $r->addparent($parent);
788 if ($r->flags != $flags) {
792 push @rout, $r if $au;
794 push @rout, $parent->add_user($call, $flags);
798 # add this station to the user database, if required
799 $call =~ s/-\d+$//o; # remove ssid for users
800 my $user = DXUser->get_current($call);
801 $user = DXUser->new($call) if !$user;
802 $user->homenode($parent->call) if !$user->homenode;
803 $user->node($parent->call);
804 $user->lastin($main::systime) unless DXChannel->get($call);
807 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
821 eph_del_regex("^PC16\\^$ncall.*$ucall");
823 # do I want users from this channel?
824 unless ($self->user->wantpc16) {
825 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
828 if ($ncall eq $main::mycall) {
829 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
833 my $uref = Route::User::get($ucall);
835 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
837 my $parent = Route::Node::get($ncall);
839 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
842 $dxchan = $parent->dxchan if $parent;
843 if ($dxchan && $dxchan ne $self) {
844 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
848 # input filter if required and then remove user if present
850 # return unless $self->in_filter_route($parent);
851 $parent->del_user($uref) if $uref;
853 $parent = Route->new($ncall); # throw away
856 if (eph_dup($line)) {
857 dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
861 $uref = Route->new($ucall) unless $uref; # throw away
862 $self->route_pc17($origin, $line, $parent, $uref);
872 $self->state('init');
874 # record the type and version offered
875 if ($_[1] =~ /DXSpider Version: (\d+\.\d+) Build: (\d+\.\d+)/) {
876 $self->version(53 + $1);
877 $self->user->version(53 + $1);
878 $self->build(0 + $2);
879 $self->user->build(0 + $2);
880 unless ($self->is_spider) {
881 $self->user->sort('S');
886 $self->version(50.0);
887 $self->version($_[2] / 100) if $_[2] && $_[2] =~ /^\d+$/;
888 $self->user->version($self->version);
891 # first clear out any nodes on this dxchannel
892 my $parent = Route::Node::get($self->{call});
893 my @rout = $parent->del_nodes;
894 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
895 $self->send_local_config();
899 # incoming cluster list
908 my $newline = "PC19^";
910 if (eph_dup($line)) {
911 dbg("PCPROT: dup PC19 detected") if isdbg('chanerr');
918 # first get the INTERFACE node
919 my $parent = Route::Node::get($self->{call});
921 dbg("DXPROT: my parent $self->{call} has disappeared");
926 # if the origin isn't the same as the INTERFACE, then reparent, creating nodes as necessary
927 if ($origin ne $self->call) {
928 my $op = Route::Node::get($origin);
930 $op = $parent->add($origin, 5000, Route::here(1));
931 my $user = DXUser->get_current($origin);
933 $user = DXUser->new($origin);
935 $user->priv(1); # I have relented and defaulted nodes
937 $user->homenode($origin);
938 $user->node($origin);
939 $user->wantroutepc19(1);
947 for ($i = 1; $i < $#_-1; $i += 4) {
949 my $call = uc $_[$i+1];
952 next unless defined $here && defined $conf && is_callsign($call);
954 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
956 # check for sane parameters
957 # $ver = 5000 if $ver eq '0000';
958 next if $ver < 5000; # only works with version 5 software
959 next if length $call < 3; # min 3 letter callsigns
960 next if $call eq $main::mycall;
962 # check that this PC19 isn't trying to alter the wrong dxchan
963 my $dxchan = DXChannel->get($call);
964 if ($dxchan && $dxchan != $self) {
965 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
969 # add this station to the user database, if required (don't remove SSID from nodes)
970 my $user = DXUser->get_current($call);
972 $user = DXUser->new($call);
974 $user->priv(1); # I have relented and defaulted nodes
976 $user->homenode($call);
980 my $r = Route::Node::get($call);
981 my $flags = Route::here($here)|Route::conf($conf);
983 # modify the routing table if it is in it, otherwise store it in the pc19list for now
986 if ($call ne $parent->call) {
987 if ($self->in_filter_route($r)) {
988 $ar = $parent->add($call, $ver, $flags);
989 push @rout, $ar if $ar;
994 if ($r->version ne $ver || $r->flags != $flags) {
997 push @rout, $r unless $ar;
1001 # if he is directly connected or allowed then add him, otherwise store him up for later
1002 if ($call eq $self->{call} || $user->wantroutepc19) {
1003 my $new = Route->new($call); # throw away
1004 if ($self->in_filter_route($new)) {
1005 my $ar = $parent->add($call, $ver, $flags);
1006 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
1007 push @rout, $ar if $ar;
1012 $pc19list{$call} = [] unless exists $pc19list{$call};
1013 my $nl = $pc19list{$call};
1014 push @{$pc19list{$call}}, [$self->{call}, $ver, $flags] unless grep $_->[0] eq $self->{call}, @$nl;
1018 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
1019 my $mref = DXMsg::get_busy($call);
1020 $mref->stop_msg($call) if $mref;
1022 $user->lastin($main::systime) unless DXChannel->get($call);
1027 $self->route_pc19($origin, $line, @rout) if @rout;
1030 # send local configuration
1037 $self->send_local_config();
1038 $self->send(pc22());
1039 $self->state('normal');
1040 $self->{lastping} = 0;
1043 # delete a cluster from the list
1050 my $call = uc $_[1];
1052 eph_del_regex("^PC1[679].*$call");
1054 # if I get a PC21 from the same callsign as self then treat it
1055 # as a PC39: I have gone away
1056 if ($call eq $self->call) {
1057 $self->disconnect(1);
1061 # check to see if we are in the pc19list, if we are then don't bother with any of
1062 # this routing table manipulation, just remove it from the list and dump it
1064 if (my $nl = $pc19list{$call}) {
1065 $pc19list{$call} = [ grep {$_->[0] ne $self->{call}} @$nl ];
1066 delete $pc19list{$call} unless @{$pc19list{$call}};
1069 my $parent = Route::Node::get($self->{call});
1071 dbg("DXPROT: my parent $self->{call} has disappeared");
1075 if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
1076 my $node = Route::Node::get($call);
1079 my $dxchan = DXChannel->get($call);
1080 if ($dxchan && $dxchan != $self) {
1081 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chanerr');
1086 return unless $self->in_filter_route($node);
1089 push @rout, $node->del($parent);
1092 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
1097 $self->route_pc21($origin, $line, @rout) if @rout;
1107 $self->state('normal');
1108 $self->{lastping} = 0;
1119 # route foreign' pc27s
1121 if ($_[8] ne $main::mycall) {
1122 $self->route($_[8], $line);
1127 return if $rspfcheck and !$self->rspfcheck(1, $_[8], $_[7]);
1130 my $d = cltounix($_[1], sprintf("%02d18Z", $_[2]));
1131 my $sfi = unpad($_[3]);
1132 my $k = unpad($_[4]);
1133 my $i = unpad($_[5]);
1134 my ($r) = $_[6] =~ /R=(\d+)/;
1136 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
1137 dbg("PCPROT: WWV Date ($_[1] $_[2]) out of range") if isdbg('chanerr');
1140 if (Geomag::dup($d,$sfi,$k,$i,$_[6])) {
1141 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1144 $_[7] =~ s/-\d+$//o; # remove spotter's ssid
1146 my $wwv = Geomag::update($d, $_[2], $sfi, $k, $i, @_[6..8], $r);
1150 $rep = Local::wwv($self, $_[1], $_[2], $sfi, $k, $i, @_[6..8], $r);
1152 # dbg("Local::wwv2 error $@") if isdbg('local') if $@;
1155 # DON'T be silly and send on PC27s!
1156 return if $pcno == 27;
1158 # broadcast to the eager world
1159 send_wwv_spot($self, $line, $d, $_[2], $sfi, $k, $i, @_[6..8]);
1169 my $call = uc $_[1];
1171 $nref = Route::Node::get($call);
1172 $uref = Route::User::get($call);
1173 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1175 if (eph_dup($line)) {
1176 dbg("PCPROT: Dup PC24 ignored\n") if isdbg('chanerr');
1180 $nref->here($_[2]) if $nref;
1181 $uref->here($_[2]) if $uref;
1182 my $ref = $nref || $uref;
1183 return unless $self->in_filter_route($ref);
1185 $self->route_pc24($origin, $line, $ref, $_[3]);
1195 if ($_[1] ne $main::mycall) {
1196 $self->route($_[1], $line);
1199 if ($_[2] eq $main::mycall) {
1200 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
1204 Log('DXProt', "Merge request for $_[3] spots and $_[4] WWV from $_[2]");
1208 my @in = reverse Spot::search(1, undef, undef, 0, $_[3]);
1211 $self->send(pc26(@{$in}[0..4], $_[2]));
1217 my @in = reverse Geomag::search(0, $_[4], time, 1);
1220 $self->send(pc27(@{$in}[0..5], $_[2]));
1225 sub handle_26 {goto &handle_11}
1226 sub handle_27 {goto &handle_23}
1228 # mail/file handling
1235 if ($_[1] eq $main::mycall) {
1237 my $sub = "DXMsg::handle_$pcno";
1240 $self->route($_[1], $line) unless $self->is_clx;
1244 sub handle_29 {goto &handle_28}
1245 sub handle_30 {goto &handle_28}
1246 sub handle_31 {goto &handle_28}
1247 sub handle_32 {goto &handle_28}
1248 sub handle_33 {goto &handle_28}
1256 if (eph_dup($line, $eph_pc34_restime)) {
1257 dbg("PCPROT: dupe PC34, ignored") if isdbg('chanerr');
1259 $self->process_rcmd($_[1], $_[2], $_[2], $_[3]);
1263 # remote command replies
1270 eph_del_regex("^PC35\\^$_[2]\\^$_[1]\\^");
1271 $self->process_rcmd_reply($_[1], $_[2], $_[1], $_[3]);
1274 sub handle_36 {goto &handle_34}
1283 if ($_[1] eq $main::mycall) {
1285 my $sub = "DXDb::handle_$pcno";
1288 $self->route($_[1], $line) unless $self->is_clx;
1292 # node connected list from neighbour
1301 # incoming disconnect
1308 if ($_[1] eq $self->{call}) {
1309 $self->disconnect(1);
1311 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1315 sub handle_40 {goto &handle_28}
1327 $l =~ s/[\x00-\x20\x7f-\xff]+//g; # remove all funny characters and spaces for dup checking
1328 if (eph_dup($l, $eph_info_restime)) {
1329 dbg("PCPROT: dup PC41, ignored") if isdbg('chanerr');
1333 # input filter if required
1334 # my $ref = Route::get($call) || Route->new($call);
1335 # return unless $self->in_filter_route($ref);
1337 if ($_[3] eq $_[2] || $_[3] =~ /^\s*$/) {
1338 dbg('PCPROT: invalid value') if isdbg('chanerr');
1342 # add this station to the user database, if required
1343 my $user = DXUser->get_current($call);
1344 $user = DXUser->new($call) unless $user;
1348 } elsif ($_[2] == 2) {
1350 } elsif ($_[2] == 3) {
1351 if (is_latlong($_[3])) {
1352 my ($lat, $long) = DXBearing::stoll($_[3]);
1355 $user->qra(DXBearing::lltoqra($lat, $long));
1357 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1360 } elsif ($_[2] == 4) {
1361 $user->homenode($_[3]);
1362 } elsif ($_[2] == 5) {
1363 if (is_qra(uc $_[3])) {
1364 my ($lat, $long) = DXBearing::qratoll(uc $_[3]);
1367 $user->qra(uc $_[3]);
1369 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1373 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1376 unless ($self->{isolate}) {
1377 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1380 # perhaps this IS what we want after all
1381 # $self->route_pc41($ref, $call, $_[2], $_[3], $_[4]);
1384 sub handle_42 {goto &handle_28}
1388 sub handle_44 {goto &handle_37}
1389 sub handle_45 {goto &handle_37}
1390 sub handle_46 {goto &handle_37}
1391 sub handle_47 {goto &handle_37}
1392 sub handle_48 {goto &handle_37}
1394 # message and database
1402 if (eph_dup($line)) {
1403 dbg("PCPROT: Dup PC49 ignored\n") if isdbg('chanerr');
1407 if ($_[1] eq $main::mycall) {
1408 DXMsg::handle_49($self, @_);
1410 $self->route($_[1], $line) unless $self->is_clx;
1414 # keep alive/user list
1423 my $node = Route::Node::get($call);
1425 return unless $node->call eq $self->{call};
1426 $node->usercount($_[2]);
1428 # input filter if required
1429 return unless $self->in_filter_route($node);
1431 $self->route_pc50($origin, $line, $node, $_[2], $_[3]) unless eph_dup($line);
1435 # incoming ping requests/answers
1448 if ($to eq $main::mycall) {
1450 $self->send(pc51($from, $to, '0'));
1452 # it's a reply, look in the ping list for this one
1453 my $ref = $pings{$from};
1455 my $tochan = DXChannel->get($from);
1457 my $r = shift @$ref;
1458 my $dxchan = DXChannel->get($r->{call});
1459 next unless $dxchan;
1460 my $t = tv_interval($r->{t}, [ gettimeofday ]);
1461 if ($dxchan->is_user) {
1462 my $s = sprintf "%.2f", $t;
1463 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
1464 $dxchan->send($dxchan->msg('pingi', $from, $s, $ave))
1465 } elsif ($dxchan->is_node) {
1467 my $nopings = $tochan->user->nopings || $obscount;
1468 push @{$tochan->{pingtime}}, $t;
1469 shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
1471 # cope with a missed ping, this means you must set the pingint large enough
1472 if ($t > $tochan->{pingint} && $t < 2 * $tochan->{pingint} ) {
1473 $t -= $tochan->{pingint};
1476 # calc smoothed RTT a la TCP
1477 if (@{$tochan->{pingtime}} == 1) {
1478 $tochan->{pingave} = $t;
1480 $tochan->{pingave} = $tochan->{pingave} + (($t - $tochan->{pingave}) / 6);
1482 $tochan->{nopings} = $nopings; # pump up the timer
1489 if (eph_dup($line)) {
1490 dbg("PCPROT: dup PC51 detected") if isdbg('chanerr');
1493 # route down an appropriate thingy
1494 $self->route($to, $line);
1498 # dunno but route it
1506 if ($call ne $main::mycall) {
1507 $self->route($call, $line);
1521 my $d = cltounix($call, sprintf("%02d18Z", $_[2]));
1522 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
1523 dbg("PCPROT: WCY Date ($call $_[2]) out of range") if isdbg('chanerr');
1526 @_ = map { unpad($_) } @_;
1528 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1532 my $wcy = WCY::update($d, @_[2..12]);
1536 $rep = Local::wcy($self, @_[1..12]);
1538 # dbg("Local::wcy error $@") if isdbg('local') if $@;
1541 # broadcast to the eager world
1542 send_wcy_spot($self, $line, $d, @_[2..12]);
1545 # remote commands (incoming)
1552 $self->process_rcmd($_[1], $_[2], $_[3], $_[4]);
1555 # remote command replies
1562 $self->process_rcmd_reply($_[1], $_[2], $_[3], $_[4]);
1565 # if get here then rebroadcast the thing with its Hop count decremented (if
1566 # there is one). If it has a hop count and it decrements to zero then don't
1569 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1580 if (eph_dup($line)) {
1581 dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr');
1583 unless ($self->{isolate}) {
1584 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
1590 # This is called from inside the main cluster processing loop and is used
1591 # for despatching commands that are doing some long processing job
1596 my @dxchan = DXChannel->get_all();
1600 # send out a pc50 on EVERY channel all at once
1601 if ($t >= $last_pc50 + $DXProt::pc50_interval) {
1602 $pc50s = pc50($main::me, scalar DXChannel::get_all_users);
1607 foreach $dxchan (@dxchan) {
1608 next unless $dxchan->is_node();
1609 next if $dxchan == $main::me;
1612 $dxchan->send($pc50s) if $pc50s;
1614 # send a ping out on this channel
1615 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1616 if ($dxchan->{nopings} <= 0) {
1617 $dxchan->disconnect;
1619 addping($main::mycall, $dxchan->call);
1620 $dxchan->{nopings} -= 1;
1621 $dxchan->{lastping} = $t;
1627 if ($t - $last10 >= 10) {
1628 # clean out ephemera
1635 if ($main::systime - 3600 > $last_hour) {
1636 $last_hour = $main::systime;
1641 # finish up a pc context
1645 # some active measures
1653 my @dxchan = DXChannel->get_all();
1656 # send it if it isn't the except list and isn't isolated and still has a hop count
1657 # taking into account filtering and so on
1658 foreach $dxchan (@dxchan) {
1659 next if $dxchan == $main::me;
1660 next if $dxchan == $self && $self->is_node;
1661 $dxchan->dx_spot($line, $self->{isolate}, @_, $self->{call});
1669 my $isolate = shift;
1670 my ($filter, $hops);
1672 if ($self->{spotsfilter}) {
1673 ($filter, $hops) = $self->{spotsfilter}->it(@_);
1674 return unless $filter;
1676 send_prot_line($self, $filter, $hops, $isolate, $line);
1681 my ($self, $filter, $hops, $isolate, $line) = @_;
1687 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1689 $routeit = adjust_hops($self, $line); # adjust its hop count by node name
1690 return unless $routeit;
1693 $self->send($routeit);
1695 $self->send($routeit) unless $self->{isolate} || $isolate;
1704 my @dxchan = DXChannel->get_all();
1706 my @dxcc = ((Prefix::cty_data($_[6]))[0..2], (Prefix::cty_data($_[7]))[0..2]);
1708 # send it if it isn't the except list and isn't isolated and still has a hop count
1709 # taking into account filtering and so on
1710 foreach $dxchan (@dxchan) {
1711 next if $dxchan == $main::me;
1712 next if $dxchan == $self && $self->is_node;
1714 my ($filter, $hops);
1716 $dxchan->wwv($line, $self->{isolate}, @_, $self->{call}, @dxcc);
1724 my $isolate = shift;
1725 my ($filter, $hops);
1727 if ($self->{wwvfilter}) {
1728 ($filter, $hops) = $self->{wwvfilter}->it(@_);
1729 return unless $filter;
1731 send_prot_line($self, $filter, $hops, $isolate, $line)
1738 my @dxchan = DXChannel->get_all();
1740 my @dxcc = ((Prefix::cty_data($_[10]))[0..2], (Prefix::cty_data($_[11]))[0..2]);
1742 # send it if it isn't the except list and isn't isolated and still has a hop count
1743 # taking into account filtering and so on
1744 foreach $dxchan (@dxchan) {
1745 next if $dxchan == $main::me;
1746 next if $dxchan == $self;
1748 $dxchan->wcy($line, $self->{isolate}, @_, $self->{call}, @dxcc);
1756 my $isolate = shift;
1757 my ($filter, $hops);
1759 if ($self->{wcyfilter}) {
1760 ($filter, $hops) = $self->{wcyfilter}->it(@_);
1761 return unless $filter;
1763 send_prot_line($self, $filter, $hops, $isolate, $line) if $self->is_clx || $self->is_spider || $self->is_dxnet;
1771 my @dxchan = DXChannel->get_all();
1775 my $text = unpad($_[2]);
1777 if ($_[3] eq '*') { # sysops
1779 } elsif ($_[3] gt ' ') { # speciality list handling
1780 my ($name) = split /\./, $_[3];
1781 $target = "$name"; # put the rest in later (if bothered)
1788 $target = "ALL" if !$target;
1791 # obtain country codes etc
1792 my @a = Prefix::cty_data($_[0]);
1793 my @b = Prefix::cty_data($_[4]);
1794 if ($self->{inannfilter}) {
1795 my ($filter, $hops) =
1796 $self->{inannfilter}->it(@_, $self->{call},
1798 @b[0..2], $a[3], $b[3]);
1800 dbg("PCPROT: Rejected by input announce filter") if isdbg('chanerr');
1805 if (AnnTalk::dup($_[0], $_[1], $_[2])) {
1806 dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');
1810 Log('ann', $target, $_[0], $text);
1812 # send it if it isn't the except list and isn't isolated and still has a hop count
1813 # taking into account filtering and so on
1814 foreach $dxchan (@dxchan) {
1815 next if $dxchan == $main::me;
1816 next if $dxchan == $self && $self->is_node;
1817 $dxchan->announce($line, $self->{isolate}, $to, $target, $text, @_, $self->{call},
1818 @a[0..2], @b[0..2]);
1827 $msgid = 1 if $msgid > 999;
1836 my @dxchan = DXChannel->get_all();
1839 my $text = unpad($_[2]);
1842 # munge the group and recast the line if required
1843 if ($target =~ s/\.LST$//) {
1847 # obtain country codes etc
1848 my @a = Prefix::cty_data($_[0]);
1849 my @b = Prefix::cty_data($_[4]);
1850 if ($self->{inannfilter}) {
1851 my ($filter, $hops) =
1852 $self->{inannfilter}->it(@_, $self->{call},
1854 @b[0..2], $a[3], $b[3]);
1856 dbg("PCPROT: Rejected by input announce filter") if isdbg('chanerr');
1861 if (AnnTalk::dup($_[0], $_[1], $_[2], $chatdupeage)) {
1862 dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');
1867 Log('chat', $target, $_[0], $text);
1869 # send it if it isn't the except list and isn't isolated and still has a hop count
1870 # taking into account filtering and so on
1871 foreach $dxchan (@dxchan) {
1872 my $is_ak1a = $dxchan->is_ak1a;
1874 if ($dxchan->is_node) {
1875 next if $dxchan == $main::me;
1876 next if $dxchan == $self;
1877 next unless $dxchan->is_spider || $is_ak1a;
1878 next if $target eq 'LOCAL';
1879 if (!$ak1a_line && $is_ak1a) {
1880 $ak1a_line = DXProt::pc12($_[0], $text, $_[1], "$target.LST");
1884 $dxchan->chat($is_ak1a ? $ak1a_line : $line, $self->{isolate}, $target, $_[1],
1885 $text, @_, $self->{call}, @a[0..2], @b[0..2]);
1893 my $isolate = shift;
1897 my ($filter, $hops);
1899 if ($self->{annfilter}) {
1900 ($filter, $hops) = $self->{annfilter}->it(@_);
1901 return unless $filter;
1903 send_prot_line($self, $filter, $hops, $isolate, $line) unless $_[1] eq $main::mycall;
1912 sub send_local_config
1920 dbg('DXProt::send_local_config') if isdbg('trace');
1923 if ($self->{isolate}) {
1924 @localnodes = ( $main::routeroot );
1925 $self->send_route($main::mycall, \&pc19, 1, $main::routeroot);
1927 # create a list of all the nodes that are not connected to this connection
1928 # and are not themselves isolated, this to make sure that isolated nodes
1929 # don't appear outside of this node
1931 # send locally connected nodes
1932 my @dxchan = grep { $_->call ne $main::mycall && $_ != $self && !$_->{isolate} } DXChannel::get_all_nodes();
1933 @localnodes = map { my $r = Route::Node::get($_->{call}); $r ? $r : () } @dxchan if @dxchan;
1934 $self->send_route($main::mycall, \&pc19, scalar(@localnodes)+1, $main::routeroot, @localnodes);
1937 my @rawintcalls = map { $_->nodes } @localnodes if @localnodes;
1939 for $node (@rawintcalls) {
1940 push @intcalls, $node unless grep $node eq $_, @intcalls;
1942 my $ref = Route::Node::get($self->{call});
1943 my @rnodes = $ref->nodes;
1944 for $node (@intcalls) {
1945 push @remotenodes, Route::Node::get($node) unless grep $node eq $_, @rnodes, @remotenodes;
1947 $self->send_route($main::mycall, \&pc19, scalar(@remotenodes), @remotenodes);
1950 # get all the users connected on the above nodes and send them out
1951 foreach $node ($main::routeroot, @localnodes, @remotenodes) {
1953 my @rout = map {my $r = Route::User::get($_); $r ? ($r) : ()} $node->users;
1954 $self->send_route($main::mycall, \&pc16, 1, $node, @rout) if @rout && $self->user->wantsendpc16;
1956 dbg("sent a null value") if isdbg('chanerr');
1962 # route a message down an appropriate interface for a callsign
1964 # is called route(to, pcline);
1968 my ($self, $call, $line) = @_;
1970 if (ref $self && $call eq $self->{call}) {
1971 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
1975 # always send it down the local interface if available
1976 my $dxchan = DXChannel->get($call);
1978 my $cl = Route::get($call);
1979 $dxchan = $cl->dxchan if $cl;
1981 if (ref $self && $dxchan eq $self) {
1982 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
1988 my $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
1990 $dxchan->send($routeit) unless $dxchan == $main::me;
1993 dbg("PCPROT: No route available, dropped") if isdbg('chanerr');
1998 # obtain the hops from the list for this callsign and pc no
2004 my $hops = $DXProt::hopcount{$pcno};
2005 $hops = $DXProt::def_hopcount if !$hops;
2010 # adjust the hop count on a per node basis using the user loadable
2011 # hop table if available or else decrement an existing one
2018 my $call = $self->{call};
2021 if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
2022 my ($pcno) = $s =~ /^PC(\d\d)/o;
2023 confess "$call called adjust_hops with '$s'" unless $pcno;
2024 my $ref = $nodehops{$call} if %nodehops;
2026 my $newhops = $ref->{$pcno};
2027 return "" if defined $newhops && $newhops == 0;
2028 $newhops = $ref->{default} unless $newhops;
2029 return "" if defined $newhops && $newhops == 0;
2030 $newhops = $hops if !$newhops;
2031 $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
2033 # simply decrement it
2035 return "" if !$hops;
2036 $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
2048 return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
2049 do "$main::data/hop_table.pl";
2055 # add a ping request to the ping queues
2058 my ($from, $to) = @_;
2059 my $ref = $pings{$to} || [];
2062 $r->{t} = [ gettimeofday ];
2063 route(undef, $to, pc51($to, $main::mycall, 1));
2070 my ($self, $tonode, $fromnode, $user, $cmd) = @_;
2071 if ($tonode eq $main::mycall) {
2072 my $ref = DXUser->get_current($fromnode);
2073 my $cref = Route::Node::get($fromnode);
2074 Log('rcmd', 'in', $ref->{priv}, $fromnode, $cmd);
2075 if ($cmd !~ /^\s*rcmd/i && $cref && $ref && $cref->call eq $ref->homenode) { # not allowed to relay RCMDS!
2076 if ($ref->{priv}) { # you have to have SOME privilege, the commands have further filtering
2077 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
2078 my $oldpriv = $self->{priv};
2079 $self->{priv} = $ref->{priv}; # assume the user's privilege level
2080 my @in = (DXCommandmode::run_cmd($self, $cmd));
2081 $self->{priv} = $oldpriv;
2082 $self->send_rcmd_reply($main::mycall, $fromnode, $user, @in);
2083 delete $self->{remotecmd};
2085 $self->send_rcmd_reply($main::mycall, $fromnode, $user, "sorry...!");
2088 $self->send_rcmd_reply($main::mycall, $fromnode, $user, "your attempt is logged, Tut tut tut...!");
2091 my $ref = DXUser->get_current($tonode);
2092 if ($ref && $ref->is_clx) {
2093 $self->route($tonode, pc84($fromnode, $tonode, $user, $cmd));
2095 $self->route($tonode, pc34($fromnode, $tonode, $cmd));
2100 sub process_rcmd_reply
2102 my ($self, $tonode, $fromnode, $user, $line) = @_;
2103 if ($tonode eq $main::mycall) {
2104 my $s = $rcmds{$fromnode};
2106 my $dxchan = DXChannel->get($s->{call});
2107 my $ref = $user eq $tonode ? $dxchan : (DXChannel->get($user) || $dxchan);
2108 $ref->send($line) if $ref;
2109 delete $rcmds{$fromnode} if !$dxchan;
2111 # send unsolicited ones to the sysop
2112 my $dxchan = DXChannel->get($main::myalias);
2113 $dxchan->send($line) if $dxchan;
2116 my $ref = DXUser->get_current($tonode);
2117 if ($ref && $ref->is_clx) {
2118 $self->route($tonode, pc85($fromnode, $tonode, $user, $line));
2120 $self->route($tonode, pc35($fromnode, $tonode, $line));
2129 my $fromnode = shift;
2134 Log('rcmd', 'out', $fromnode, $line);
2135 if ($self->is_clx) {
2136 $self->send(pc85($main::mycall, $fromnode, $user, "$main::mycall:$line"));
2138 $self->send(pc35($main::mycall, $fromnode, "$main::mycall:$line"));
2143 # add a rcmd request to the rcmd queues
2146 my ($self, $to, $cmd) = @_;
2149 $r->{call} = $self->{call};
2150 $r->{t} = $main::systime;
2154 my $ref = Route::Node::get($to);
2155 my $dxchan = $ref->dxchan;
2156 if ($dxchan && $dxchan->is_clx) {
2157 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
2159 route(undef, $to, pc34($main::mycall, $to, $cmd));
2166 my $pc39flag = shift;
2167 my $call = $self->call;
2169 return if $self->{disconnecting}++;
2171 unless ($pc39flag && $pc39flag == 1) {
2172 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
2175 # get rid of any PC16/17/19
2176 eph_del_regex("^PC1[679]*$call");
2178 # do routing stuff, remove me from routing table
2179 my $node = Route::Node::get($call);
2182 @rout = $node->del($main::routeroot);
2184 # and all my ephemera as well
2187 eph_del_regex("^PC1[679].*$c");
2191 # remove them from the pc19list as well
2192 while (my ($k,$v) = each %pc19list) {
2193 my @l = grep {$_->[0] ne $call} @{$pc19list{$k}};
2195 $pc19list{$k} = \@l;
2197 delete $pc19list{$k};
2201 eph_del_regex("^PC1[679].*$k");
2204 # unbusy and stop and outgoing mail
2205 my $mref = DXMsg::get_busy($call);
2206 $mref->stop_msg($call) if $mref;
2208 # broadcast to all other nodes that all the nodes connected to via me are gone
2209 unless ($pc39flag && $pc39flag == 2) {
2210 $self->route_pc21($main::mycall, undef, @rout) if @rout;
2213 # remove outstanding pings
2214 delete $pings{$call};
2216 # I was the last node visited
2217 $self->user->node($main::mycall);
2219 # send info to all logged in thingies
2220 $self->tell_login('logoutn');
2222 Log('DXProt', $call . " Disconnected");
2224 $self->SUPER::disconnect;
2229 # send a talk message to this thingy
2233 my ($self, $from, $to, $via, $line, $origin) = @_;
2235 $line =~ s/\^/\\5E/g; # remove any ^ characters
2236 $self->send(DXProt::pc10($from, $to, $via, $line, $origin));
2237 Log('talk', $to, $from, $via?$via:$self->call, $line) unless $origin && $origin ne $main::mycall;
2240 # send it if it isn't the except list and isn't isolated and still has a hop count
2241 # taking into account filtering and so on
2247 my $generate = shift;
2248 my $no = shift; # the no of things to filter on
2250 my ($filter, $hops);
2253 for (; @_ && $no; $no--) {
2256 if (!$self->{isolate} && $self->{routefilter}) {
2259 ($filter, $hops) = $self->{routefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq, $self->{state}, $r->{state});
2263 dbg("DXPROT: $self->{call}/" . $r->call . " rejected by output filter") if isdbg('chanerr');
2266 dbg("was sent a null value") if isdbg('chanerr');
2269 push @rin, $r unless $self->{isolate} && $r->call ne $main::mycall;
2273 foreach my $line (&$generate(@rin, @_)) {
2276 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
2278 $routeit = adjust_hops($self, $line); # adjust its hop count by node name
2279 next unless $routeit;
2282 $self->send($routeit);
2291 my $generate = shift;
2293 my @dxchan = DXChannel::get_all_nodes();
2296 unless ($self->{isolate}) {
2297 foreach $dxchan (@dxchan) {
2298 next if $dxchan == $self;
2299 next if $dxchan == $main::me;
2300 next unless $dxchan->isa('DXProt');
2301 next if ($generate == \&pc16 || $generate==\&pc17) && !$dxchan->user->wantsendpc16;
2303 $dxchan->send_route($origin, $generate, @_);
2311 return unless $self->user->wantpc16;
2314 broadcast_route($self, $origin, \&pc16, $line, 1, @_);
2320 return unless $self->user->wantpc16;
2323 broadcast_route($self, $origin, \&pc17, $line, 1, @_);
2331 broadcast_route($self, $origin, \&pc19, $line, scalar @_, @_);
2339 broadcast_route($self, $origin, \&pc21, $line, scalar @_, @_);
2347 broadcast_route($self, $origin, \&pc24, $line, 1, @_);
2355 broadcast_route($self, $origin, \&pc41, $line, 1, @_);
2363 broadcast_route($self, $origin, \&pc50, $line, 1, @_);
2370 my ($filter, $hops) = (1, 1);
2372 if ($self->{inroutefilter}) {
2373 ($filter, $hops) = $self->{inroutefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq, $self->state, $r->state);
2374 dbg("PCPROT: $self->{call}/" . $r->call . ' rejected by in_filter_route') if !$filter && isdbg('chanerr');
2382 my $t = shift || $eph_restime;
2386 $s =~ s/\^H\d\d?\^?\~?$//;
2387 $r = 1 if exists $eph{$s}; # pump up the dup if it keeps circulating
2388 $eph{$s} = $main::systime + $t;
2396 while (($key, $val) = each %eph) {
2397 if ($key =~ m{$regex}) {
2407 while (($key, $val) = each %eph) {
2408 if ($main::systime >= $val) {
2419 while (($key, $val) = each %eph) {
2420 push @out, $key, $val;
2427 goto &DXCommandmode::run_cmd;