3 # This module impliments the handlers for the protocal mode for a dx cluster
5 # Copyright (c) 1998-2007 Dirk Koopman G1TLH
39 no warnings qw(uninitialized);
43 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
44 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
45 $pingint $obscount %pc19list $chatdupeage $chatimportfn
46 $investigation_int $pc19_version $myprot_version
47 %nodehops $baddx $badspotter $badnode $censorpc
48 $allowzero $decode_dk0wcy $send_opernam @checklist
49 $eph_pc15_restime $pc9x_past_age $pc9x_dupe_age
50 $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
51 $pc92Ain $pc92Cin $pc92Din $pc92Kin $pc9x_time_tolerance
52 $pc92filterdef $senderverify $pc11_dwell_time $pc11_extract_route
55 $pc9x_dupe_age = 60; # catch loops of circular (usually) D records
56 $pc10_dupe_age = 45; # just something to catch duplicate PC10->PC93 conversions
57 $pc92_slug_changes = 60*1; # slug any changes going outward for this long
58 $last_pc92_slug = 0; # the last time we sent out any delayed add or del PC92s
59 $pc9x_time_tolerance = 15*60; # the time on a pc9x is allowed to be out by this amount
60 $pc9x_past_age = (122*60)+ # maximum age in the past of a px9x (a config record might be the only
61 $pc9x_time_tolerance; # thing a node might send - once an hour and we allow an extra hour for luck)
62 # this is actually the partition between "yesterday" and "today" but old.
63 $senderverify = 0; # 1 - check for forged PC11 or PC61.
64 # 2 - if forged, dump them.
65 $pc11_dwell_time = 2; # number of seconds to wait for a PC61 to come to substitute the PC11
66 $pc11_extract_route = 1; # generate missing user route entry and IP address from passing PC61s
69 $pc92filterdef = bless ([
70 # tag, sort, field, priv, special parser
79 # this is a place to park an incoming PC11 in the sure and certain hope that
80 # a PC61 will be along soon. This has the side benefit that it will delay a
81 # a PC11 for one second - assuming that it is not removed by a PC61 version
83 # incoming talk commands
92 # this is to catch loops caused by bad software ...
93 if (eph_dup($line, $pc10_dupe_age)) {
98 # is it for me or one of mine?
99 my ($from, $to, $via, $call, $dxchan);
101 if ($pc->[5] gt ' ') {
108 # if this is a 'nodx' node then ignore it
109 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
110 dbg($line) if isdbg('nologchan');
111 dbg("PCPROT: Bad Node, dropped");
117 $nossid =~ s/-\d+$//;
118 if ($badspotter->in($nossid)) {
119 dbg($line) if isdbg('nologchan');
120 dbg("PCPROT: Bad Spotter, dropped");
124 # if we are converting announces to talk is it a dup?
126 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
127 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
132 # will we allow it at all?
135 if (@bad = BadWords::check($pc->[3])) {
136 my $bw = join ', ', @bad;
137 dbg($line) if isdbg('nologchan');
138 dbg("PCPROT: Badwords: '$bw', dropped");
143 # convert this to a PC93, coming from mycall with origin set and process it as such
144 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
147 my %pc11_saved; # delayed PC11s
148 my $pc11_rx; # no of pc11 rxed
149 my $pc61_rx; # no of pc61 rxed
150 my $pc11_to_61; # no of 'better' pc61, that replaced stored waiting pc11
151 my $rpc11_to_61; # no of pc11s 'promoted' to pc61 by IP captured in routing table
161 my $recurse = shift || 0;
163 # route 'foreign' pc26s
165 if ($pc->[7] ne $main::mycall) {
166 $self->route($pc->[7], $line);
171 dbg("INPUT $self->{call}: $line origin $origin recurse: $recurse") if isdbg("pc11") || isdbg("pc61");
173 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
175 # is the spotted callsign blank? This should really be trapped earlier but it
176 # could break other protocol sentences. Also check for lower case characters.
177 if ($pc->[2] =~ /^\s*$/) {
178 dbg($line) if isdbg('nologchan');
179 dbg("PCPROT: blank callsign, dropped");
182 if ($pc->[2] =~ /[a-z]/) {
183 dbg($line) if isdbg('nologchan');
184 dbg("PCPROT: lowercase characters, dropped");
189 # if this is a 'nodx' node then ignore it
190 if ($badnode->in($pc->[7])) {
191 dbg($line) if isdbg('nologchan');
192 dbg("PCPROT: Bad Node $pc->[7], dropped");
196 # convert the date to a unix date
197 my $d = cltounix($pc->[3], $pc->[4]);
198 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
199 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
200 dbg($line) if isdbg('nologchan');
201 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n");
206 if ($baddx->in($pc->[2])) {
207 dbg("PCPROT: Bad DX spot '$pc->[2]', ignored");
208 dbg($line) if isdbg('nologchan');
212 # is it claiming to be BUST(ed)
213 $pc->[5] =~ s/^\s+//; # take any leading blanks off
214 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
215 if ($pc->[2] =~ /BUST\w*$/) {
216 dbg($line) if isdbg('nologchan');
217 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
221 my $nossid = $pc->[6];
222 $nossid =~ s/-\d+$//;
224 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
228 # $f2 = date in unix format
231 # $f5 = spotted dxcc country
232 # $f6 = spotter dxcc country
235 # $f9 = spotted cq zone
237 # $f11 = spotter cq zone
238 # $f12 = spotted us state
239 # $f13 = spotter us state
243 # is this is a 'bad spotter' or an unknown user then ignore it.
244 if ($badspotter->in($nossid)) {
245 dbg($line) if isdbg('nologchan');
246 dbg("PCPROT: Bad Spotter $pc->[6], dropped");
250 # global spot filtering on INPUT
251 if ($self->{inspotsfilter}) {
252 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
254 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
260 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
262 my $key = join '|', @spot[0..2,4,7]; # not including text
266 if (Spot::dup_find(@spot[0..4,7])) {
267 dbg("DUPE $pc->[0] $self->{call}: key: $key dumped") if isdbg('pc11');
273 # as we have a route to a user, if it does not exist, create and link if (and only if) the node exists as well
277 my $r = Route::User::get($pc->[6]);
279 my $rn = Route::Node::get($pc->[7]) || Route::Node->new($pc->[7]);
280 $rn->add_user($pc->[6], 0, $pc->[8]);
281 $r = Route::User::get($pc->[6]);
284 if ($r->ip ne $pc->[8]) {
287 dbg("ROUTE ALTER IP node: $pc->[7] user: $pc->[6] old IP: '$old'-> new IP: '$new'") if isdbg('pc11');
289 dbg("ROUTE NEW IP node: $pc->[7] user: $pc->[6] IP: '$new'") if isdbg('pc11');
292 dbg("ROUTE ADD Failed for node $pc->[7] user $pc->[6]") if isdbg('pc11');
296 if ($pc11_saved{$key}) {
298 my $percent = $pc11_rx ? $pc11_to_61 * 100 / $pc11_rx : 0;
299 dbg(sprintf("PROMOTED BETTER $self->{call}: $pc->[0] $key, using pc61, WAITING pc11 DUMPED: $pc61_rx pc11: $pc11_rx better pc61: $pc11_to_61 (%0.1f%%)", $percent)) if isdbg("pc11");
300 delete $pc11_saved{$key};
305 if (Spot::dup_find(@spot[0..4,7])) {
306 dbg("DUPE $pc->[0] $self->{call}: key: $key dumped") if isdbg('pc11');
312 if ($pc11_saved{$key}) {
313 dbg("DUPE $pc->[0] $self->{call } key: $key is saved, ignored") if isdbg("pc11");
314 return; # because it's a dup
317 # can we promote this to a PC61?
318 my $r = Route::User::get($spot[4]); # find spotter
320 if ($r && $r->ip) { # do we have an ip addres
323 $pc->[7] = $spot[14] = $r->ip;
325 my $percent = $pc11_rx ? $rpc11_to_61 * 100 / $pc11_rx : 0;
326 dbg(sprintf("PROMOTED ROUTE $self->{call}: pc11 $key PROMOTED to pc61 with IP $spot[14] pc61: $pc61_rx pc11: $pc11_rx route->pc61 $rpc11_to_61 (%0.1f%%)", $percent)) if isdbg("pc11");
327 delete $pc11_saved{$key};
330 # if it is STILL (despite all efforts to change it) a PC11
331 # save it and wait - it will be called from pc11_process
333 $pc11_saved{$key} = [$main::systime, $self, $pcno, $line, $origin, $pc];
334 dbg("WAITING $self->{call}: NEW $pc->[0] spot $key waiting for a better offer") if isdbg("pc11");
342 # this goes after the input filtering, but before the add
343 # so that if it is input filtered, it isn't added to the dup
344 # list. This allows it to come in from a "legitimate" source
345 if (Spot::dup(@spot[0..4,7])) {
346 dbg("PCPROT: Duplicate Spot $self->{call}: $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
350 dbg("PROCESSING $self->{call}: $pc->[0] key: $key") if isdbg('pc11');
352 # we check IP addresses for PC61 - this will also dedupe PC11 copies
353 if (@$pc > 8 && is_ipaddr($pc->[8])) {
357 if (DXCIDR::find($ip)) {
358 dbg($line) if isdbg('nologchan');
359 dbg("PCPROT: $ip in badip list, dropped");
365 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
366 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
367 # to be current once we have seen the first PC92C from that node.
369 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
372 my $nroute = Route::Node::get($pc->[7]);
373 my $uroute = Route::Node::get($pc->[6]);
374 my $local = DXChannel::get($pc->[7]);
376 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
378 my $ip = $pcno == 61 ? $pc->[8] : '';
379 # $s .= "User $pc->[6] not logged in, " unless $uroute;
380 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
381 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
383 my $action = $senderverify > 1 ? ", DUMPED" : '';
385 dbg("PCPROT: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
386 return unless $senderverify < 2;
391 # we until here to do any censorship to try and reduce the amount of noise that repeated copies
392 # from other connected nodes cause
395 if (@bad = BadWords::check($pc->[5])) {
396 my $bw = join ', ', @bad;
397 dbg($line) if isdbg('nologchan');
398 dbg("PCPROT: Badwords: '$bw', dropped");
408 $ip ||= $spot[14] if exists $spot[14];
409 if (isdbg('progress')) {
410 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
412 my $d = ztime($spot[2]);
413 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
414 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
415 $s .= " route: $origin";
420 # @spot at this point contains:-
421 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
422 # then spotted itu, spotted cq, spotters itu, spotters cq
423 # you should be able to route on any of these
426 # fix up qra locators of known users
427 my $user = DXUser::get_current($spot[4]);
429 my $qra = $user->qra;
430 unless ($qra && is_qra($qra)) {
431 my $lat = $user->lat;
432 my $long = $user->long;
433 if (defined $lat && defined $long) {
434 $user->qra(DXBearing::lltoqra($lat, $long));
439 # send a remote command to a distant cluster if it is visible and there is no
440 # qra locator and we havn't done it for a month.
442 unless ($user->qra) {
444 my $to = $user->homenode;
445 my $last = $user->lastoper || 0;
446 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
447 my $cmd = "forward/opernam $spot[4]";
448 # send the rcmd but we aren't interested in the replies...
449 my $dxchan = $node->dxchan;
450 if ($dxchan && $dxchan->is_clx) {
451 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
453 route(undef, $to, pc34($main::mycall, $to, $cmd));
455 if ($to ne $origin) {
457 $node = Route::Node::get($to);
459 $dxchan = $node->dxchan;
460 if ($dxchan && $dxchan->is_clx) {
461 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
463 route(undef, $to, pc34($main::mycall, $to, $cmd));
467 $user->lastoper($main::systime);
474 if (defined &Local::spot) {
477 $r = Local::spot($self, @spot);
482 # DON'T be silly and send on PC26s!
483 return if $pcno == 26;
485 # send out the filtered spots
486 send_dx_spot($self, $line, @spot) if @spot;
488 # cancel any recursion as we have now processed it
489 my $count = $pc11_to_61+$rpc11_to_61;
490 my $percent = ($pc11_rx + $pc61_rx) ? ($pc11_rx * 100) / ($pc11_rx + $pc61_rx) : 0;
491 my $pc11_61 = $pc11_rx ? ($count * 100) / $pc11_rx : 0;
492 my $data = "$self->{call} $pc->[0] key: $key";
493 my $stats = sprintf "pc11: $pc11_rx pc61: $pc61_rx pc11%%: %0.1f%% pc11->pc61: $count(%0.1f%%)", $percent, $pc11_61;
495 if ($pc11_saved{$key}) {
496 dbg("END RECURSED $data removed and finished $stats") if isdbg('pc11');
497 delete $pc11_saved{$key};
499 dbg("END RECURSED $data finished $stats") if isdbg('pc11');
503 dbg("END NORMAL $data finished $stats") if isdbg('pc11');
507 # used to kick outstanding PC11 if required
510 foreach my $key (keys %pc11_saved) {
511 my $r = $pc11_saved{$key};
512 if ($main::systime > $r->[0] + $pc11_dwell_time) {
513 dbg("RECURSE PC11 spot $key timed out waiting, resend") if isdbg("pc11");
515 delete $pc11_saved{$key};
516 $self->handle_11(@$r[2..5], 1);
521 # return the pc11 / pc61 / promotions data
522 sub get_pc11_61_stats
524 my $promotions = $pc11_to_61+$rpc11_to_61;
525 my $percent = ($pc11_rx + $pc61_rx) ? ($pc11_rx * 100) / ($pc11_rx + $pc61_rx) : 0;
526 my $pc11_61p = $pc11_rx ? ($promotions * 100) / $pc11_rx : 0;
528 pc11_rx => $pc11_rx+0,
529 pc61_rx => $pc61_rx+0,
530 pc11_to_61 => $pc11_to_61+0,
531 rpc11_to_61 => $rpc11_to_61+0,
532 promotions => $promotions+0,
533 pc11_percent => $percent+0,
534 promotions_percent => $pc11_61p+0,
547 # announce duplicate checking
548 $pc->[3] =~ s/^\s+//; # remove leading blanks
550 # if this is a 'nodx' node then ignore it
551 if ($badnode->in($pc->[5])) {
552 dbg($line) if isdbg('nologchan');
553 dbg("PCPROT: Bad Node, dropped");
557 # if this is a 'bad spotter' user then ignore it
558 my $nossid = $pc->[1];
559 $nossid =~ s/-\d+$//;
560 if ($badspotter->in($nossid)) {
561 dbg($line) if isdbg('nologchan');
562 dbg("PCPROT: Bad Spotter, dropped");
566 # ignore PC12s from origins that use PCxx protocol
567 my $oref = Route::get($origin);
568 if ($oref->do_pc9x) {
569 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
575 if (@bad = BadWords::check($pc->[3])) {
576 my $bw = join ', ', @bad;
577 dbg($line) if isdbg('nologchan');
578 dbg("PCPROT: Badwords: '$bw', dropped");
586 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
587 $self->send_chat(0, $line, @$pc[1..6]);
588 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
590 # ignore something that looks like a chat line coming in with sysop
591 # flag - this is a kludge...
592 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
593 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
597 # here's a bit of fun, convert incoming ann with a callsign in the first word
598 # or one saying 'to <call>' to a talk if we can route to the recipient
600 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
602 my $ref = Route::get($call);
604 $dxchan = $ref->dxchan;
605 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
612 $self->send_announce(0, $line, @$pc[1..6]);
614 $self->route($pc->[2], $line);
618 if (defined &Local::ann) {
621 $r = Local::ann($self, $line, @$pc[1..6]);
635 if (eph_dup($line, $eph_pc15_restime)) {
638 unless ($self->{isolate}) {
639 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
655 my $ncall = $pc->[1];
656 my $newline = "PC16^";
658 # dos I want users from this channel?
659 unless ($self->user->wantpc16) {
660 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
665 if ($ncall eq $main::mycall) {
666 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
671 $h = 1 if DXChannel::get($ncall);
672 if ($h && $self->{call} ne $ncall) {
673 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
677 if (eph_dup($line)) {
681 # isolate now means only accept stuff from this call only
682 if ($self->{isolate} && $ncall ne $self->{call}) {
683 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
687 my $parent = Route::Node::get($ncall);
690 $dxchan = $parent->dxchan;
691 if ($dxchan && $dxchan ne $self) {
692 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
696 # input filter if required
697 return unless $self->in_filter_route($parent);
699 $parent = Route::Node->new($ncall);
703 if ($parent->via_pc92) {
704 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
711 for ($i = 2; $i < $#$pc; $i++) {
712 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
713 next unless $call && $conf && defined $here && is_callsign($call);
714 next if $call eq $main::mycall;
716 eph_del_regex("^PC17\\^$call\\^$ncall");
718 $conf = $conf eq '*';
720 # reject this if we think it is a node already
721 my $r = Route::Node::get($call);
722 my $u = DXUser::get_current($call) unless $r;
723 if ($r || ($u && $u->is_node)) {
724 dbg("PCPROT: $call is a node") if isdbg('chanerr');
728 $r = Route::User::get($call);
729 my $flags = Route::here($here)|Route::conf($conf);
732 my $au = $r->addparent($parent);
733 if ($r->flags != $flags) {
737 push @rout, $r if $h && $au;
739 my @ans = $parent->add_user($call, $flags);
740 push @rout, @ans if $h && @ans;
743 # add this station to the user database, if required
744 my $user = DXUser::get_current($ncall);
745 $user = DXUser->new($call) unless $user;
746 $user->homenode($parent->call) if !$user->homenode;
747 $user->node($parent->call);
748 $user->lastin($main::systime) unless DXChannel::get($call);
751 # send info to all logged in thingies
752 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
753 $self->tell_buddies('loginb', $call, $ncall);
756 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
757 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
771 my $ncall = $pc->[2];
772 my $ucall = $pc->[1];
774 eph_del_regex("^PC16\\^$ncall.*$ucall");
776 # do I want users from this channel?
777 unless ($self->user->wantpc16) {
778 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
782 if ($ncall eq $main::mycall) {
783 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
787 # isolate now means only accept stuff from this call only
788 if ($self->{isolate} && $ncall ne $self->{call}) {
789 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
793 my $uref = Route::User::get($ucall);
795 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
798 my $parent = Route::Node::get($ncall);
800 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
804 $dxchan = DXChannel::get($ncall);
805 if ($dxchan && $dxchan ne $self) {
806 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
811 if ($parent->via_pc92) {
812 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
817 if (DXChannel::get($ucall)) {
818 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
822 # input filter if required and then remove user if present
823 # return unless $self->in_filter_route($parent);
824 $parent->del_user($uref);
826 # send info to all logged in thingies
827 my $user = DXUser::get_current($ncall);
828 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
829 $self->tell_buddies('logoutb', $ucall, $ncall);
831 if (eph_dup($line)) {
835 $self->route_pc17($origin, $line, $parent, $uref);
836 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
848 $self->state('init');
850 my $parent = Route::Node::get($self->{call});
852 # record the type and version offered
853 if (my ($software, $version) = $pc->[1] =~ /(DXSpider|CC\s*Cluster)\s+Version: (\d+(?:\.\d+)?)/i) {
855 $version += 53 if $version < 6;
856 $self->{version} = $version;
857 $self->user->version($version);
858 $parent->version($version);
859 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
861 $self->{build} = $build;
862 $self->user->build($build);
863 $parent->build($build);
864 dbg("$self->{call} = $software version $version build $build");
865 unless ($self->is_spider) {
866 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
867 $self->user->sort('S');
871 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
872 } elsif (my ($software, $version, $build) = $pc->[1] =~ /(AR-Cluster)\s+Version:\s+(\d+\.\d+).?(\d+\.\d+)?/) {
873 dbg("$self->{call} = $software version $version build $build");
874 $self->{version} = $version;
875 $self->user->version($version);
876 $parent->version($version);
877 $self->{build} = $build;
878 $self->user->build($build);
879 $parent->build($build);
880 unless ($self->is_arcluster) {
881 dbg("Change U " . $self->user->sort . " C $self->{sort} -> R");
882 $self->user->sort('R');
887 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
888 $self->version(50.0);
889 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
890 $self->user->version($self->version);
893 if ($pc->[1] =~ /CC\*Cluster/i || $pc->[1] =~ /\bpc9x/i) {
894 if ($self->{isolate}) {
895 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
896 } elsif (!$self->user->wantpc9x) {
897 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
899 $self->{do_pc9x} = 1;
900 dbg("$self->{call} Set do PC9x");
904 # first clear out any nodes on this dxchannel
905 my @rout = $parent->del_nodes;
906 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
907 $self->send_local_config();
915 my $homenode = shift;
917 # add this station to the user database, if required (don't remove SSID from nodes)
918 my $user = DXUser::get_current($call);
920 $user = DXUser->new($call);
921 $user->sort($type || 'U');
922 if ($user->is_node) {
923 $user->priv(1); # I have relented and defaulted nodes
924 $user->lockout(1) if $user->is_node;
926 $user->homenode($homenode) if $homenode;
927 $user->node($homenode);
930 $user->lastin($main::systime); # this make it last longer than just this invocation
931 $user->put; # just to make sure it gets written away!!!
932 dbg("DXProt: PC92 new user record for $call created");
935 # this is to fix a problem I introduced some build ago by using this function for users
936 # whereas it was only being used for nodes.
937 if ($user->is_user && $user->lockout && ($user->priv // 0) == 1) {
940 dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
946 # incoming cluster list
956 my $newline = "PC19^";
959 my (@rout, @pc92out);
961 # first get the INTERFACE node
962 my $parent = Route::Node::get($self->{call});
964 dbg("PCPROT: my parent $self->{call} has disappeared");
973 # We are making a major change from now on. We are only going to accept
974 # PC19s from directly connected nodes. This means that we are probably
975 # going to throw away most of the data that we are being sent.
977 # The justification for this is that most of it is wrong or out of date
980 # From now on we are only going to believe PC92 data and locally connected
983 for ($i = 1; $i < $#$pc-1; $i += 4) {
984 my $here = $pc->[$i];
985 my $call = uc $pc->[$i+1];
986 my $conf = $pc->[$i+2];
987 my $ver = $pc->[$i+3];
988 next unless defined $here && defined $conf && is_callsign($call);
990 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
992 # check for sane parameters
993 # $ver = 5000 if $ver eq '0000';
994 next unless $ver && $ver =~ /^\d+$/;
995 next if $ver < 5000; # only works with version 5 software
996 next if length $call < 3; # min 3 letter callsigns
997 next if $call eq $main::mycall || $call eq $main::myalias;
999 # check that this PC19 isn't trying to alter the wrong dxchan
1001 my $dxchan = DXChannel::get($call);
1003 if ($dxchan == $self) {
1006 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
1011 # isolate now means only accept stuff from this call only
1012 if ($self->{isolate} && $call ne $self->{call}) {
1013 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
1017 my $user = check_add_user($call, 'A');
1019 # if (eph_dup($genline)) {
1020 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
1026 if ($parent->via_pc92) {
1027 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
1032 my $r = Route::Node::get($call);
1033 my $flags = Route::here($here)|Route::conf($conf);
1035 # modify the routing table if it is in it, otherwise store it in the pc19list for now
1038 if ($call ne $parent->call) {
1039 if ($self->in_filter_route($r)) {
1040 $ar = $parent->add($call, $ver, $flags);
1041 # push @rout, $ar if $ar;
1046 if ($r->version ne $ver || $r->flags != $flags) {
1052 if ($call eq $self->{call} || $user->wantroutepc19) {
1053 my $new = Route->new($call); # throw away
1054 if ($self->in_filter_route($new)) {
1055 my $ar = $parent->add($call, $ver, $flags);
1056 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
1057 push @rout, $ar if $ar;
1058 push @pc92out, $r if $h;
1065 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
1066 my $mref = DXMsg::get_busy($call);
1067 $mref->stop_msg($call) if $mref;
1069 $user->lastin($main::systime) unless DXChannel::get($call);
1073 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
1074 # but remember there will only be one (pair) these because any extras will be
1077 # $self->route_pc21($self->{call}, $line, @rout);
1078 $self->route_pc19($self->{call}, $line, @rout);
1080 if (@pc92out && !$pc92_slug_changes) {
1081 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
1085 # send local configuration
1094 if ($self->{do_pc9x} && $self->{state} ne 'init92' && $self->{state} ne 'normal') {
1095 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1096 $self->{do_pc9x} = 0;
1098 $self->send_local_config;
1099 $self->send(pc22());
1100 $self->state('normal');
1101 $self->{lastping} = 0;
1102 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1105 # delete a cluster from the list
1107 # This should never occur for directly connected nodes.
1117 my $call = uc $pc->[1];
1119 eph_del_regex("^PC1[679].*$call");
1121 # if I get a PC21 from the same callsign as self then ignore it
1122 if ($call eq $self->{call}) {
1123 dbg("PCPROT: self referencing PC21 from $self->{call}");
1127 # for the above reason and also because of the check for PC21s coming
1128 # in for self->call from outside being ignored further down
1129 # we don't need any isolation code here, because we will never
1130 # act on a PC21 with self->call in it.
1132 my $parent = Route::Node::get($self->{call});
1134 dbg("PCPROT: my parent $self->{call} has disappeared");
1141 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
1142 my $node = Route::Node::get($call);
1145 if ($node->via_pc92) {
1146 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1150 my $dxchan = DXChannel::get($call);
1151 if ($dxchan && $dxchan != $self) {
1152 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1157 return unless $self->in_filter_route($node);
1159 # routing objects, force a PC21 if it is local
1160 push @rout, $node->del($parent);
1161 push @rout, $call if $dxchan && @rout == 0;
1164 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1168 if (eph_dup($line)) {
1173 $self->route_pc21($origin, $line, @rout);
1174 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1187 if ($self->{do_pc9x}) {
1188 if ($self->{state} ne 'init92' && $self->{state} ne 'normal') {
1189 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1190 $self->{do_pc9x} = 0;
1193 $self->{lastping} = 0;
1194 $self->state('normal');
1195 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1207 # route foreign' pc27s
1209 if ($pc->[8] ne $main::mycall) {
1210 $self->route($pc->[8], $line);
1217 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1218 my $sfi = unpad($pc->[3]);
1219 my $k = unpad($pc->[4]);
1220 my $i = unpad($pc->[5]);
1221 my ($r) = $pc->[6] =~ /R=(\d+)/;
1223 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1224 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1228 # global wwv filtering on INPUT
1229 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1230 if ($self->{inwwvfilter}) {
1231 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1233 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1237 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1238 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1239 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1243 # note this only takes the first one it gets
1244 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1245 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1247 if (defined &Local::wwv) {
1250 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1255 # DON'T be silly and send on PC27s!
1256 return if $pcno == 27;
1258 # broadcast to the eager world
1259 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1271 my $call = uc $pc->[1];
1273 $nref = Route::Node::get($call);
1274 $uref = Route::User::get($call);
1275 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1277 if (eph_dup($line)) {
1281 $nref->here($pc->[2]) if $nref;
1282 $uref->here($pc->[2]) if $uref;
1283 my $ref = $nref || $uref;
1284 return unless $self->in_filter_route($ref);
1286 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1298 if ($pc->[1] ne $main::mycall) {
1299 $self->route($pc->[1], $line);
1302 if ($pc->[2] eq $main::mycall) {
1303 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1307 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1311 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1314 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1320 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1323 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1328 sub handle_26 {goto &handle_11}
1329 sub handle_27 {goto &handle_23}
1331 # mail/file handling
1340 if ($pc->[1] eq $main::mycall) {
1342 my $sub = "DXMsg::handle_$pcno";
1345 $self->route($pc->[1], $line) unless $self->is_clx;
1349 sub handle_29 {goto &handle_28}
1350 sub handle_30 {goto &handle_28}
1351 sub handle_31 {goto &handle_28}
1352 sub handle_32 {goto &handle_28}
1353 sub handle_33 {goto &handle_28}
1363 if (eph_dup($line, $eph_pc34_restime)) {
1366 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1370 # remote command replies
1379 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1380 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1383 sub handle_36 {goto &handle_34}
1394 if ($pc->[1] eq $main::mycall) {
1396 my $sub = "DXDb::handle_$pcno";
1399 $self->route($pc->[1], $line) unless $self->is_clx;
1403 # node connected list from neighbour
1413 # incoming disconnect
1422 if ($pc->[1] eq $self->{call}) {
1423 $self->disconnect(1);
1425 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1429 sub handle_40 {goto &handle_28}
1440 my $call = $pc->[1];
1441 my $sort = $pc->[2];
1444 my $l = "PC41^$call^$sort";
1445 if (eph_dup($l, $eph_info_restime)) {
1449 # input filter if required
1450 # my $ref = Route::get($call) || Route->new($call);
1451 # return unless $self->in_filter_route($ref);
1453 if ($val eq $sort || $val =~ /^\s*$/) {
1454 dbg('PCPROT: invalid value') if isdbg('chanerr');
1458 if ($call eq $main::mycall || $call eq $main::myalias) {
1459 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1462 my $chan = DXChannel::get($call);
1464 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1468 # add this station to the user database, if required
1469 my $user = DXUser::get_current($call);
1470 $user = DXUser->new($call) unless $user;
1473 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1474 dbg("PCPROT: invalid name") if isdbg('chanerr');
1478 } elsif ($sort == 2) {
1480 } elsif ($sort == 3) {
1481 if (is_latlong($val)) {
1482 my ($lat, $long) = DXBearing::stoll($val);
1483 $user->lat($lat) if $lat;
1484 $user->long($long) if $long;
1485 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1487 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1490 } elsif ($sort == 4) {
1491 $user->homenode($val);
1492 } elsif ($sort == 5) {
1493 if (is_qra(uc $val)) {
1494 my ($lat, $long) = DXBearing::qratoll(uc $val);
1495 $user->lat($lat) if $lat && !$user->lat;
1496 $user->long($long) if $long && !$user->long;
1497 $user->qra(uc $val);
1499 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1503 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1506 unless ($self->{isolate}) {
1507 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1510 # perhaps this IS what we want after all
1511 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1514 sub handle_42 {goto &handle_28}
1518 sub handle_44 {goto &handle_37}
1519 sub handle_45 {goto &handle_37}
1520 sub handle_46 {goto &handle_37}
1521 sub handle_47 {goto &handle_37}
1522 sub handle_48 {goto &handle_37}
1524 # message and database
1533 if (eph_dup($line)) {
1537 if ($pc->[1] eq $main::mycall) {
1538 DXMsg::handle_49($self, @$pc);
1540 $self->route($pc->[1], $line) unless $self->is_clx;
1544 # keep alive/user list
1553 return if (eph_dup($line));
1555 my $call = $pc->[1];
1557 my $node = Route::Node::get($call);
1559 return unless $node->call eq $self->{call};
1560 $node->usercount($pc->[2]) unless $node->users;
1562 $node->PC92C_dxchan($self->call, $pc->[-1]);
1564 # input filter if required
1565 # return unless $self->in_filter_route($node);
1567 unless ($self->{isolate}) {
1568 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1570 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1574 # incoming ping requests/answers
1584 my $from = $pc->[2];
1585 my $flag = $pc->[3];
1587 if ($to eq $main::myalias) {
1588 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1593 if ($to eq $main::mycall) {
1595 $self->send(pc51($from, $to, '0'));
1597 DXXml::Ping::handle_ping_reply($self, $from);
1600 if (eph_dup($line)) {
1603 # route down an appropriate thingy
1604 $self->route($to, $line);
1608 sub handle_61 { goto &handle_11; }
1610 # dunno but route it
1619 my $call = $pc->[1];
1620 if ($call ne $main::mycall) {
1621 $self->route($call, $line);
1634 my $call = $pc->[1];
1637 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1638 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1639 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1642 $pc = [ map { unpad($_) } @$pc ];
1644 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1648 my $wcy = WCY::update($d, @$pc[2..12]);
1649 dbg("WCY: <$pc->[2]> K=$pc->[5] expK=$pc->[6] A=$pc->[4] R=$pc->[7] SFI=$pc->[3] SA=$pc->[8] GMF=$pc->[9] Au=$pc->[10] $pc->[11]\@$pc->[12] route: $origin") if isdbg('progress');
1651 if (defined &Local::wcy) {
1654 $rep = Local::wcy($self, @$pc[1..12]);
1659 # broadcast to the eager world
1660 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1663 # remote commands (incoming)
1672 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1675 # remote command replies
1684 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1687 # decode a pc92 call: flag call : version : build
1688 sub _decode_pc92_call
1691 my @part = split /:/, $icall;
1692 my ($flag, $call) = unpack "A A*", $part[0];
1693 unless (defined $flag && $flag ge '0' && $flag le '7') {
1694 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1697 unless ($call && is_callsign($call)) {
1698 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1701 my $is_node = $flag & 4;
1702 my $is_extnode = $flag & 2;
1703 my $here = $flag & 1;
1704 my $version = $part[1] || 0;
1705 my $build = $part[2] || 0;
1706 my $ip = $part[3] || '';
1708 # remember that, at this stage, IPV6 addresses have : replaced by ,
1709 if (length $version > 4 && $version =~ /[,\.][\da-f]{1,4}/i) {
1713 $version =~ s/\D//g;
1714 $version = 0 unless $version && $version =~ /^[0-9]+$/;
1717 $build = 0 unless $build && $build =~ /^[0-9]+$/;
1720 $ip =~ s/^::ffff://i;
1721 $ip = '' unless is_ipaddr($ip);
1723 dbg("'$icall' = '" . join("', '", $call, $is_node, $is_extnode, $here, $version, $build, $ip) . "'") if isdbg('pc92');
1724 return ($call, $is_node, $is_extnode, $here, $version+0, $build+0, $ip);
1727 # decode a pc92 call: flag call : version : build
1728 sub _encode_pc92_call
1732 # plain call or value
1733 return $ref unless ref $ref;
1735 my $ext = shift || 0;
1737 my $call = $ref->call;
1739 $flag |= $ref->here ? 1 : 0;
1740 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1742 my $dxchan = DXChannel::get($call);
1743 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1744 if (($ext & 1) && $ref->version) {
1745 my $version = $ref->version || 1.0;
1746 $version = $version * 100 + 5300 if $version < 50;
1747 $extra .= ":" . $version;
1750 if (($ext & 2) && $ref->ip) {
1753 $extra .= ':' . $ip;
1756 return "$flag$call$extra";
1769 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1772 # remove spurious IPV6 prefix on IPV4 addresses
1777 my $ncall = $parent->call;
1778 if ($ncall ne $call) {
1782 # normalise call, delete any unnormalised calls in the users file.
1783 # then ignore this thingy
1784 my $normcall = normalise_call($call);
1785 if ($normcall ne $call) {
1786 next if DXChannel::get($call);
1787 $user = DXUser::get($call);
1788 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1789 $user->del if $user;
1790 $call = $normcall; # this is safe because a route add will ignore duplicates
1794 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1795 $user = check_add_user($call, 'A');
1796 @rout = $parent->add($call, $version, Route::here($here), $ip);
1797 $r = Route::Node::get($call);
1798 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1799 if ($version && is_numeric($version) && !$r->K && !$user->K) {
1800 my $old = $user->sort;
1801 if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1803 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1804 } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455))) {
1805 unless ($version > 0 && $build == 0) {
1808 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1812 $r->version($user->version) if $user->version;
1813 $r->build($user->build) if $user->build;
1814 $r->K(1) if $user->K;
1816 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1817 $user = check_add_user($call, 'U', $parent->call);
1818 @rout = $parent->add_user($call, Route::here($here), $ip);
1819 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1820 $r = Route::User::get($call);
1824 Log('DXProt', "PC92A $call -> $ip on $ncall");
1826 if ($pc92_slug_changes && $parent == $main::routeroot) {
1827 $things_add{$call} = Route::get($call);
1828 delete $things_del{$call};
1830 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1832 dbgprintring(10) if isdbg('nologchan');
1833 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1845 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1850 $ref = Route::Node::get($call);
1851 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1852 @rout = $ref->del($parent) if $ref;
1854 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1855 $ref = Route::User::get($call);
1857 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1858 @rout = $parent->del_user($ref);
1861 if ($pc92_slug_changes && $parent == $main::routeroot) {
1862 $things_del{$call} = $ref unless exists $things_add{$call};
1863 delete $things_add{$call};
1869 # this will only happen if we are slugging changes and
1870 # there are some changes to be sent, it will create an add or a delete
1872 sub gen_pc92_changes
1874 my @add = values %things_add;
1875 my @del = values %things_del;
1876 return (\@add, \@del);
1879 sub clear_pc92_changes
1881 %things_add = %things_del = ();
1882 $last_pc92_slug = $main::systime;
1891 return $_last_pc9x_id;
1896 if (!$_last_time || $_last_time != $main::systime) {
1897 $_last_time = $main::systime;
1899 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1902 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1913 # check that the time is between 0 >= $t < 86400
1914 unless ($t >= 0 && $t < 86400) {
1915 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1919 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1920 my $now = $main::systime - $main::systime_daystart ;
1921 my $diff = abs($now - $t);
1922 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1923 my $c = ref $call ? $call->call : $call;
1924 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1928 my $parent = ref $call ? $call : Route::Node::get($call);
1930 # we only do this for external calls whose routing table
1931 # record come and go. The reference for mycall is permanent
1932 # and not that frequently used, it also never times out, so
1933 # the id on it is completely unreliable. Besides, only commands
1934 # originating on this box will go through this code...
1935 if ($parent->call ne $main::mycall) {
1936 my $lastid = $parent->lastid;
1937 if (defined $lastid) {
1939 # note that this is where we determine whether this pc9x has come in yesterday
1940 # but is still greater (modulo 86400) than the lastid or is simply an old
1941 # duplicate sentence. To determine this we need to do some module 86400
1942 # arithmetic. High numbers mean that this is an old duplicate sentence,
1943 # low numbers that it is a new sentence.
1945 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1946 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1947 # 86378 respectively in the calculation below).
1949 if ($t+86400-$lastid > $pc9x_past_age) {
1950 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1953 } elsif ($t == $lastid) {
1954 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1957 # check that if we have a low number in lastid that yesterday's numbers
1958 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1959 if ($lastid+86400-$t < $pc9x_past_age) {
1960 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1967 $parent = Route::Node->new($call);
1969 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1972 if (isdbg('pc92dedupe')) {
1973 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1974 my $val = $parent->{lastid};
1975 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1976 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1978 $parent->lastid($t);
1983 sub pc92_handle_first_slot
1990 my $oparent = $parent;
1994 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1995 if ($call && $is_node) {
1996 if ($call eq $main::mycall) {
1997 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
2000 if ($call eq $main::myalias) {
2001 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
2004 # this is only accepted from my "self".
2005 # this also kills configs from PC92 nodes with external PC19 nodes that are also
2006 # locally connected. Local nodes always take precedence. But we remember the lastid
2007 # to try to reduce the number of dupe PC92s for this external node.
2008 if (DXChannel::get($call) && $call ne $self->{call}) {
2009 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
2010 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
2014 # reparent to external node (note that we must have received a 'C' or 'A' record
2015 # from the true parent node for this external before we get one for the this node
2016 unless ($parent = Route::Node::get($call)) {
2017 if ($is_extnode && $oparent) {
2018 @radd = _add_thingy($oparent, $slot, $self, $hops);
2021 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
2025 $parent = check_pc9x_t($call, $t, 92) || return;
2026 $parent->via_pc92(1);
2027 $parent->PC92C_dxchan($self->{call}, $hops);
2030 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
2033 $parent->here(Route::here($here));
2034 $parent->version($version || $pc19_version) if $version;
2035 $parent->build($build) if $build;
2036 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2037 return ($parent, @radd);
2040 # DXSpider routing entries
2051 my $pcall = $pc->[1];
2053 my $sort = $pc->[3];
2054 my $hops = $pc->[-1];
2056 # this catches loops of A/Ds
2057 # if (eph_dup($line, $pc9x_dupe_age)) {
2061 if ($pcall eq $main::mycall) {
2062 LogDbg('err', "PCPROT: looped back, ignored");
2066 if ($pcall eq $main::myalias) {
2067 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
2071 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
2072 if ($self->{isolate}) {
2073 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
2075 } elsif (!$self->user->wantpc9x) {
2076 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
2079 $self->state('init92');
2080 $self->{do_pc9x} = 1;
2081 dbg("DXPROT: Do pc9x set on $pcall");
2084 unless ($self->{do_pc9x}) {
2085 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2089 # don't create routing entries for D records that don't already exist
2090 # this is what causes all those PC92 loops!
2091 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
2092 my $oparent = $parent;
2094 $parent->do_pc9x(1);
2095 $parent->via_pc92(1);
2097 if ($sort eq 'F' || $sort eq 'R') {
2099 # this is the route finding section
2100 # here is where the consequences of the 'find' command
2103 my $from = $pc->[4];
2104 my $target = $pc->[5];
2110 if ($ref = DXChannel::get($target)) {
2111 $flag = 1; # we are directly connected
2113 $ref = Route::get($target);
2114 $dxchan = $ref->dxchan;
2117 if ($ref && $flag && $dxchan) {
2118 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
2121 } elsif ($sort eq 'R') {
2122 if (my $dxchan = DXChannel::get($from)) {
2123 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
2125 my $ref = Route::get($from);
2127 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
2129 $_->send($line) for @dxchan;
2131 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2134 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2140 } elsif ($sort eq 'K') {
2141 $pc92Kin += length $line;
2143 # remember the last channel we arrived on
2144 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2146 my @ent = _decode_pc92_call($pc->[4]);
2151 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
2152 return unless $parent; # dupe
2154 push @radd, $add if $add;
2156 my $call = $parent->call;
2157 my $version = $ent[4] || 0;
2158 my $build = $ent[5] || 0;
2160 my $oldbuild = $parent->build || 0;
2161 my $oldversion = $parent->version || 0;
2162 my $user = check_add_user($parent->call, 'S');
2163 my $oldsort = $user->sort // '';
2165 dbg("PCPROT: PC92 K v: $version ov: $oldversion b: $build ob: $oldbuild pk: " . ($parent->K || '0') . " uk: " . ($user->K || 0)) if isdbg('pc92k');
2167 if (is_numeric($version) || is_numeric($build)) {
2169 if (($oldversion ne $version || $build ne $oldbuild)) {
2170 dbg("PCPROT: PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild)");
2171 $user->version($parent->version($version));
2172 $user->build($parent->build($build));
2175 if ($oldsort ne 'S') {
2176 dbg("PCPROT: PC92 K node $call updated sort: $sort (was $oldsort)");
2181 dbg("PCPROT: PC92 K node $call updated - marked as PC92 K user");
2185 $user->put if $changed;
2186 $parent->K(1); # mark this as come in on a K
2188 dbg("DXProt PC92 K version call $call: invalid version: '$version' or build: '$version', ignored");
2190 dbg("ROUTE: reset obscount on $call now " . $parent->obscount) if isdbg('obscount');
2192 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2194 $pc92Ain += length $line if $sort eq 'A';
2195 $pc92Cin += length $line if $sort eq 'C';
2196 $pc92Din += length $line if $sort eq 'D';
2198 # remember the last channel we arrived on
2199 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2201 # this is the main route section
2202 # here is where all the routes are created and destroyed
2204 # cope with missing duplicate node calls in the first slot
2205 my $me = $pc->[4] || '';
2206 $me ||= _encode_pc92_call($parent) unless $me ;
2208 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2212 # look at the first one which will always be a node of some sort
2213 # except in the case of 'A' or 'D' in which the $pcall is used
2214 # otherwise use the node call and update any information
2215 # that needs to be done.
2218 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2219 return unless $parent; # dupe
2222 push @radd, $add if $add;
2225 # do a pass through removing any references to either mycall
2229 next unless $_ && @$_;
2230 if ($_->[0] eq $main::mycall) {
2231 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2234 if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
2235 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2244 push @radd, _add_thingy($parent, $_, $self, $hops);
2246 } elsif ($sort eq 'D') {
2248 push @rdel, _del_thingy($parent, $_, $self);
2250 } elsif ($sort eq 'C') {
2251 my (@nodes, @users);
2253 # we reset obscounts on config records as well as K records
2255 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2258 foreach my $r (@nent) {
2259 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2262 push @nodes, $r->[0];
2264 push @users, $r->[0];
2267 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2271 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2274 foreach my $r (@nent) {
2277 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2281 foreach my $r (@$dnodes) {
2282 push @rdel,_del_thingy($parent, [$r, 1], $self);
2284 foreach my $r (@$dusers) {
2285 push @rdel,_del_thingy($parent, [$r, 0], $self);
2288 # remember this last PC92C for rebroadcast on demand
2289 $parent->last_PC92C($line);
2291 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2295 foreach my $r (@rdel) {
2298 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2299 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2301 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2302 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2303 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2304 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2305 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2308 # broadcast it if we get here
2309 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2312 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2313 # might be on two or more nodes at the same time or that there may be more than
2314 # one equal distance neighbour to a node.
2316 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2317 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2318 # each and then combined to give a set of dxchans to send the PC9x record down
2320 sub find_pc9x_routes
2323 my $ref = Route::get($to);
2327 if ($ref->isa('Route::User')) {
2328 my $dxchan = DXChannel::get($to);
2329 push @parent, $to if $dxchan;
2330 push @parent, $ref->parents;
2334 foreach my $p (@parent) {
2336 my @routes = Route::findroutes($p);
2337 foreach my $r (@routes) {
2338 $lasthops = $r->[0] unless defined $lasthops;
2339 if ($r->[0] == $lasthops) {
2340 $cand{$r->[1]->call} = $r->[1];
2346 return values %cand;
2357 # $self->{do_pc9x} ||= 1;
2359 my $pcall = $pc->[1]; # this is now checked earlier
2361 # remember that we are converting PC10->PC93 and self will be $main::me if it
2363 unless ($self->{do_pc9x}) {
2364 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2369 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2371 my $to = uc $pc->[3];
2372 my $from = uc $pc->[4];
2373 my $via = uc $pc->[5];
2374 my $text = $pc->[6];
2375 my $onode = uc $pc->[7];
2376 $onode = $pcall if @$pc <= 8;
2378 # this is catch loops caused by bad software ...
2379 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2383 if (isdbg('progress')) {
2384 my $vs = $via ne '*' ? " via $via" : '';
2385 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2389 # if this is a 'bad spotter' user then ignore it
2391 $nossid =~ s/-\d+$//;
2392 if ($badspotter->in($nossid)) {
2393 dbg($line) if isdbg('nologchan');
2394 dbg("PCPROT: Bad Spotter, dropped");
2398 # ignore PC93 coming in from outside this node with a target of local
2399 if ($to eq 'LOCAL' && $self != $main::me) {
2400 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2404 # will we allow it at all?
2407 if (@bad = BadWords::check($text)) {
2408 my $bw = join ', ', @bad;
2409 dbg($line) if isdbg('nologchan');
2410 dbg("PCPROT: Badwords: '$bw', dropped");
2415 # if it is routeable then then treat it like a talk
2416 my $ref = Route::get($to);
2420 # convert to PC10 or local talks where appropriate
2421 # PC93 capable nodes of the same hop count all get a copy
2422 # if there is a PC10 node then it will get a copy and that
2423 # will be it. Hopefully such a node will not figure highly
2424 # in the route list, unless it is local, 'cos it don't issue PC92s!
2425 # note that both local and PC93s at the same time are possible if the
2426 # user on more than one node.
2427 my @routes = find_pc9x_routes($to);
2429 foreach $dxchan (@routes) {
2430 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2431 if ($dxchan->{do_pc9x}) {
2432 $dxchan->send($line);
2434 $dxchan->talk($from, $to, $via, $text, $onode);
2437 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2442 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2444 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2445 my $wx = $to eq 'WX' ? '1' : '0';
2446 my $local = $via eq 'LOCAL' ? '*' : $via;
2448 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2449 return if $via eq 'LOCAL';
2450 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2451 # chat messages really only locally connected users
2452 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2455 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2456 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2459 # if get here then rebroadcast the thing with its Hop count decremented (if
2460 # there is one). If it has a hop count and it decrements to zero then don't
2463 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2475 unless (eph_dup($line)) {
2477 my $pcall = $pc->[1];
2478 unless (is_callsign($pcall)) {
2479 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2483 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2484 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2486 unless ($self->{isolate}) {
2487 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me