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 $pc61_extract_route $pc92_ad_enabled $pc92c_ipaddr_enabled
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 $pc61_extract_route = 0; # 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 my $ref = Route::get($pc->[6]);
146 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]), $ip);
149 my %pc11_saved; # delayed PC11s
150 my $pc11_rx; # no of pc11 rxed
151 my $pc61_rx; # no of pc61 rxed
152 my $pc11_to_61; # no of 'better' pc61, that replaced stored waiting pc11
153 my $rpc11_to_61; # no of pc11s 'promoted' to pc61 by IP captured in routing table
163 my $recurse = shift || 0;
165 # route 'foreign' pc26s
167 if ($pc->[7] ne $main::mycall) {
168 $self->route($pc->[7], $line);
173 dbg("---") if isdbg("pc11") || isdbg("pc61");
174 dbg("INPUT $self->{call}: $line via: $origin recurse: $recurse") if isdbg("pc11") || isdbg("pc61");
176 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
178 # is the spotted callsign blank? This should really be trapped earlier but it
179 # could break other protocol sentences. Also check for lower case characters.
180 if ($pc->[2] =~ /^\s*$/) {
181 dbg($line) if isdbg('nologchan');
182 dbg("PCPROT: blank callsign, dropped");
185 if ($pc->[2] =~ /[a-z]/) {
186 dbg($line) if isdbg('nologchan');
187 dbg("PCPROT: lowercase characters, dropped");
192 # if this is a 'nodx' node then ignore it
193 if ($badnode->in($pc->[7])) {
194 dbg($line) if isdbg('nologchan');
195 dbg("PCPROT: Bad Node $pc->[7], dropped");
199 # convert the date to a unix date
200 my $d = cltounix($pc->[3], $pc->[4]);
201 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
202 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
203 dbg($line) if isdbg('nologchan');
204 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n");
209 if ($baddx->in($pc->[2])) {
210 dbg("PCPROT: Bad DX spot '$pc->[2]', ignored");
211 dbg($line) if isdbg('nologchan');
215 # is it claiming to be BUST(ed)
216 $pc->[5] =~ s/^\s+//; # take any leading blanks off
217 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
218 if ($pc->[2] =~ /BUST\w*$/) {
219 dbg($line) if isdbg('nologchan');
220 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
224 my $nossid = $pc->[6];
225 $nossid =~ s/-\d+$//;
227 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
231 # $f2 = date in unix format
234 # $f5 = spotted dxcc country
235 # $f6 = spotter dxcc country
238 # $f9 = spotted cq zone
240 # $f11 = spotter cq zone
241 # $f12 = spotted us state
242 # $f13 = spotter us state
246 # is this is a 'bad spotter' or an unknown user then ignore it.
247 if ($badspotter->in($nossid)) {
248 dbg($line) if isdbg('nologchan');
249 dbg("PCPROT: Bad Spotter $pc->[6], dropped");
253 # global spot filtering on INPUT
254 if ($self->{inspotsfilter}) {
255 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
257 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
262 my $rug = Route::User::get($pc->[6]);
264 unless ($pc->[8] && is_ipaddr($pc->[8])) {
265 LogDbg('err', "PCPROT: ROUTE $self->{call} NO IP ADDRESS in '$line'!");
268 if ($pc61_extract_route) {
269 $self->populate_routing_table($pc->[7], $pc->[6], $pc->[8]);
273 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
274 my $key = join '|', @spot[0..2,4,7]; # not including text
280 if ($pc11_saved{$key}) {
281 # before we promote because it's a better pc61, check that it's not a dupe (but don't insert it).
282 if (Spot::dup_find(@spot[0..4,7])) {
283 dbg("PCPROT: Duplicate Spot $self->{call}: $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
284 delete $pc11_saved{$key};
290 my $percent = $pc11_rx ? $pc11_to_61 * 100 / $pc11_rx : 0;
291 dbg(sprintf("PROMOTED $self->{call}: BETTER $pc->[0] $key, using pc61, WAITING pc11 DUMPED: $pc61_rx pc11: $pc11_rx better pc61: $pc11_to_61 (%0.1f%%)", $percent)) if isdbg("pc11");
293 delete $pc11_saved{$key}; # because we have promoted it, no longer needed.
295 # so unlike the promotion by route, there is a stored, but uncounted PC11
296 # which have discarded. But we have chosen to use better PC61 that's just come in
297 # so we allow the PC61 to be counted later, but count the now discarded PC11
298 # because it *did* come in.
305 # if this fires then we have already had one or more PC11s but no PC61 for this spot
306 if ($pc11_saved{$key}) {
307 dbg("DUPE $self->{call} $pc->[0] key: $key is saved, ignored") if isdbg("pc11");
308 return; # because it's a dup
311 # before we promote by route, check that it's not been preceded by a previous PC61
312 if (Spot::dup_find(@spot[0..4,7])) {
313 my $s = exists $pc11_saved{$key} ? " stored $key removed" : "";
314 dbg("PCPROT: Duplicate Spot $self->{call}: PC11$s, recurse: $recurse, ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
315 delete $pc11_saved{$key};
320 # If we have an ip address we can promote by route
321 if ($rug && $rug->ip) {
325 $pc->[8] = $spot[14] = $rug->ip;
327 my $percent = $pc11_rx ? $rpc11_to_61 * 100 / $pc11_rx : 0;
328 dbg(sprintf("PROMOTED $self->{call}: ROUTE 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");
329 $line = join '^', @$pc, $hops, '~';
331 # update the stats (NOTE, thie record was a PC11, it has now become a PC61
332 # this is NOT the same choosing a better PC61, that is a separate record.
333 ++$pc11_rx; # 'cos we received as a PC11 it and it won't be a pc11 anymore
334 --$pc61_rx; # 'cos we'll increment it later as it's now a pc61, no double counting
336 # dbg("CHANGED saved key: $key PC11 line to $line") if isdbg('pc11');
337 delete $pc11_saved{$key};
340 # if it is STILL (despite all efforts to change it) a PC11
341 # save it and wait - it will be called from pc11_process
343 $pc11_saved{$key} = [$main::systime, $self, $pcno, $line, $origin, $pc];
344 dbg("WAITING $self->{call}: NEW $pc->[0] spot $key waiting for a better offer") if isdbg("pc11");
350 # this goes after the input filtering, but before the add
351 # so that if it is input filtered, it isn't added to the dup
352 # list. This allows it to come in from a "legitimate" source
354 ## NOTE: this is where we insert the spot into the DXDupe cache
356 if (Spot::dup(@spot[0..4,7])) {
357 dbg("PCPROT: Duplicate Spot $self->{call}: $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
361 dbg("PROCESSING $self->{call}: $pc->[0] key: $key") if isdbg('pc11');
369 # we check IP addresses for PC61 - this will also dedupe PC11 promotions
370 if (@$pc > 8 && is_ipaddr($pc->[8])) {
374 if (DXCIDR::find($ip)) {
375 dbg($line) if isdbg('nologchan');
376 dbg("PCPROT: PC61 $ip in badip list, dropped");
381 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
382 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
383 # to be current once we have seen the first PC92C from that node.
385 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
387 if ($senderverify || isdbg('suspicious')) {
388 my $sv = $senderverify;
389 $sv += 2 if isdbg('suspicious');
390 my $nroute = Route::Node::get($pc->[7]);
391 my $local = DXChannel::get($pc->[7]);
392 my $uref = DXUser::get_current($pc->[7]);
394 my $ip = $pcno == 61 ? $pc->[8] : '';
396 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
397 # $s .= "User $pc->[6] not logged in, " unless $uroute;
398 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
399 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
401 # check for ip addresses on spots from non-pc9x nodes - if they have it's likely done by DXSpider nodes
402 #if ($ip && ($nroute && !$nroute->do_pc9x || $uref && $uref->is_spider)) {
403 # $s .= "PC$pcno has spurious ipaddr '$ip' from non-pc9x node $pc->[7]";
406 my $action = $sv > 1 ? ", DUMPED" : '';
408 dbg("PCPROT: Bad Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
409 return unless $sv < 2;
413 # we until here to do any censorship to try and reduce the amount of noise that repeated copies
414 # from other connected nodes cause
417 if (@bad = BadWords::check($pc->[5])) {
418 my $bw = join ', ', @bad;
419 dbg($line) if isdbg('nologchan');
420 dbg("PCPROT: Badwords: '$bw', dropped");
430 $ip ||= $spot[14] if exists $spot[14];
431 if (isdbg('progress')) {
432 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
434 my $d = ztime($spot[2]);
435 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
436 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
437 $s .= " route: $origin";
442 # @spot at this point contains:-
443 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
444 # then spotted itu, spotted cq, spotters itu, spotters cq
445 # you should be able to route on any of these
448 # fix up qra locators of known users
449 my $user = DXUser::get_current($spot[4]);
451 my $qra = $user->qra;
452 unless ($qra && is_qra($qra)) {
453 my $lat = $user->lat;
454 my $long = $user->long;
455 if (defined $lat && defined $long) {
456 $user->qra(DXBearing::lltoqra($lat, $long));
461 # send a remote command to a distant cluster if it is visible and there is no
462 # qra locator and we havn't done it for a month.
464 unless ($user->qra) {
466 my $to = $user->homenode;
467 my $last = $user->lastoper || 0;
468 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
469 my $cmd = "forward/opernam $spot[4]";
470 # send the rcmd but we aren't interested in the replies...
471 my $dxchan = $node->dxchan;
472 if ($dxchan && $dxchan->is_clx) {
473 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
475 route(undef, $to, pc34($main::mycall, $to, $cmd));
477 if ($to ne $origin) {
479 $node = Route::Node::get($to);
481 $dxchan = $node->dxchan;
482 if ($dxchan && $dxchan->is_clx) {
483 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
485 route(undef, $to, pc34($main::mycall, $to, $cmd));
489 $user->lastoper($main::systime);
496 if (defined &Local::spot) {
499 $r = Local::spot($self, @spot);
504 # DON'T be silly and send on PC26s!
505 return if $pcno == 26;
507 # send out the filtered spots
508 send_dx_spot($self, $line, @spot) if @spot;
510 # cancel any recursion as we have now processed it
511 my $count = $pc11_to_61+$rpc11_to_61;
512 my $percent = ($pc11_rx + $pc61_rx) ? ($pc11_rx * 100) / ($pc11_rx + $pc61_rx) : 0;
513 my $pc11_61 = $pc11_rx ? ($count * 100) / $pc11_rx : 0;
514 my $data = "$pc->[0] key: $key";
515 my $stats = sprintf "pc11: $pc11_rx pc61: $pc61_rx pc11%%: %0.1f%% pc11->pc61: $count(%0.1f%%)", $percent, $pc11_61;
517 if ($pc11_saved{$key}) {
518 dbg("END $self->{call}: RECURSED $data removed and finished $stats") if isdbg('pc11');
519 delete $pc11_saved{$key};
521 dbg("END $self->{call}: RECURSED NO KEY finished $stats") if isdbg('pc11');
525 dbg("END $self->{call}: NORMAL $data finished $stats") if isdbg('pc11');
529 # used to kick outstanding PC11 if required
532 foreach my $key (keys %pc11_saved) {
533 my $r = $pc11_saved{$key};
534 if ($main::systime > $r->[0] + $pc11_dwell_time) {
535 dbg("---") if isdbg("pc11");
536 dbg("RECURSE $r->[1]->{call}: PC11 spot $key timed out waiting, resend") if isdbg("pc11");
538 delete $pc11_saved{$key};
539 $self->handle_11(@$r[2..5], 1);
544 # return the pc11 / pc61 / promotions data
545 sub get_pc11_61_stats
547 my $promotions = $pc11_to_61+$rpc11_to_61;
548 my $percent = ($pc11_rx + $pc61_rx) ? ($pc11_rx * 100) / ($pc11_rx + $pc61_rx) : 0;
549 my $pc11_61p = $pc11_rx ? ($promotions * 100) / $pc11_rx : 0;
551 pc11_rx => $pc11_rx+0,
552 pc61_rx => $pc61_rx+0,
553 pc11_to_61 => $pc11_to_61+0,
554 rpc11_to_61 => $rpc11_to_61+0,
555 promotions => $promotions+0,
556 pc11_percent => $percent+0,
557 promotions_percent => $pc11_61p+0,
570 # announce duplicate checking
571 $pc->[3] =~ s/^\s+//; # remove leading blanks
573 # if this is a 'nodx' node then ignore it
574 if ($badnode->in($pc->[5])) {
575 dbg($line) if isdbg('nologchan');
576 dbg("PCPROT: Bad Node, dropped");
580 # if this is a 'bad spotter' user then ignore it
581 my $nossid = $pc->[1];
582 $nossid =~ s/-\d+$//;
583 if ($badspotter->in($nossid)) {
584 dbg($line) if isdbg('nologchan');
585 dbg("PCPROT: Bad Spotter, dropped");
589 # ignore PC12s from origins that use PCxx protocol
590 my $oref = Route::get($origin);
591 if ($oref->do_pc9x) {
592 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
598 if (@bad = BadWords::check($pc->[3])) {
599 my $bw = join ', ', @bad;
600 dbg($line) if isdbg('nologchan');
601 dbg("PCPROT: Badwords: '$bw', dropped");
609 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
610 $self->send_chat(0, $line, @$pc[1..6]);
611 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
613 # ignore something that looks like a chat line coming in with sysop
614 # flag - this is a kludge...
615 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
616 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
620 # here's a bit of fun, convert incoming ann with a callsign in the first word
621 # or one saying 'to <call>' to a talk if we can route to the recipient
623 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
625 my $ref = Route::get($call);
627 $dxchan = $ref->dxchan;
628 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
635 $self->send_announce(0, $line, @$pc[1..6]);
637 $self->route($pc->[2], $line);
641 if (defined &Local::ann) {
644 $r = Local::ann($self, $line, @$pc[1..6]);
658 if (eph_dup($line, $eph_pc15_restime)) {
661 unless ($self->{isolate}) {
662 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
678 my $ncall = $pc->[1];
679 my $newline = "PC16^";
681 # dos I want users from this channel?
682 unless ($self->user->wantpc16) {
683 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
688 if ($ncall eq $main::mycall) {
689 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
694 $h = 1 if DXChannel::get($ncall);
695 if ($h && $self->{call} ne $ncall) {
696 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
700 if (eph_dup($line)) {
704 # isolate now means only accept stuff from this call only
705 if ($self->{isolate} && $ncall ne $self->{call}) {
706 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
710 my $parent = Route::Node::get($ncall);
713 $dxchan = $parent->dxchan;
714 if ($dxchan && $dxchan ne $self) {
715 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
719 # input filter if required
720 return unless $self->in_filter_route($parent);
722 $parent = Route::Node->new($ncall);
726 if ($parent->via_pc92) {
727 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
734 for ($i = 2; $i < $#$pc; $i++) {
735 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
736 next unless $call && $conf && defined $here && is_callsign($call);
737 next if $call eq $main::mycall;
739 eph_del_regex("^PC17\\^$call\\^$ncall");
741 $conf = $conf eq '*';
743 # reject this if we think it is a node already
744 my $rng = Route::Node::get($call);
745 my $u = DXUser::get_current($call) unless $rng;
746 if ($rng || ($u && $u->is_node)) {
747 dbg("PCPROT: $call is a node") if isdbg('chanerr');
751 my $rug = Route::User::get($call);
752 my $flags = Route::here($here)|Route::conf($conf);
755 my $au = $rug->addparent($parent);
756 if ($rug->flags != $flags) {
760 push @rout, $rug if $h && $au;
762 my @ans = $parent->add_user($call, $flags);
763 push @rout, @ans if $h && @ans;
766 # add this station to the user database, if required
767 my $user = DXUser::get_current($ncall);
768 $user = DXUser->new($call) unless $user;
769 $user->homenode($parent->call) if !$user->homenode;
770 $user->node($parent->call);
771 $user->lastin($main::systime) unless DXChannel::get($call);
774 # send info to all logged in thingies
775 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
776 $self->tell_buddies('loginb', $call, $ncall);
779 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
780 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
794 my $ncall = $pc->[2];
795 my $ucall = $pc->[1];
797 eph_del_regex("^PC16\\^$ncall.*$ucall");
799 # do I want users from this channel?
800 unless ($self->user->wantpc16) {
801 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
805 if ($ncall eq $main::mycall) {
806 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
810 # isolate now means only accept stuff from this call only
811 if ($self->{isolate} && $ncall ne $self->{call}) {
812 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
816 my $uref = Route::User::get($ucall);
818 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
821 my $parent = Route::Node::get($ncall);
823 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
827 $dxchan = DXChannel::get($ncall);
828 if ($dxchan && $dxchan ne $self) {
829 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
834 if ($parent->via_pc92) {
835 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
840 if (DXChannel::get($ucall)) {
841 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
845 # input filter if required and then remove user if present
846 # return unless $self->in_filter_route($parent);
847 $parent->del_user($uref);
849 # send info to all logged in thingies
850 my $user = DXUser::get_current($ncall);
851 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
852 $self->tell_buddies('logoutb', $ucall, $ncall);
854 if (eph_dup($line)) {
858 $self->route_pc17($origin, $line, $parent, $uref);
859 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
871 $self->state('init');
873 my $parent = Route::Node::get($self->{call});
875 my ($software, $version, $build) = (undef, 0, 0);
877 # record the type and version offered
878 if (($software, $version) = $pc->[1] =~ /(DXSpider|CC\s*Cluster)\s+Version: (\d+(?:\.\d+)?)/i) {
880 $version += 53 if $version < 6;
881 $self->{version} = $version;
882 $self->user->version($version);
883 $parent->version($version);
884 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
886 $build = 0 unless $build > 1;
887 $self->{build} = $build;
888 $self->user->build($build);
889 $parent->build($build);
890 dbg("$self->{call} = $software version $version build $build");
891 unless ($self->is_spider) {
892 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
893 $self->user->sort('S');
897 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
898 } elsif (($software, $version, $build) = $pc->[1] =~ /(AR-Cluster)\s+Version:\s+(\d+\.\d+).?(\d+\.\d+)?/) {
899 dbg("$self->{call} = $software version $version build $build");
900 $self->{version} = $version;
901 $self->user->version($version);
902 $parent->version($version);
903 $self->{build} = $build;
904 $self->user->build($build);
905 $parent->build($build);
906 unless ($self->is_arcluster) {
907 dbg("Change U " . $self->user->sort . " C $self->{sort} -> R");
908 $self->user->sort('R');
913 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
914 $self->version(50.0);
915 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
916 $self->user->version($self->version);
919 if ($pc->[1] =~ /CC\s*Cluster/i || $pc->[1] =~ /\bpc9x/i) {
920 if ($self->{isolate}) {
921 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
922 } elsif (!$self->user->wantpc9x) {
923 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
925 $self->{do_pc9x} = 1;
926 dbg("$self->{call} Set do PC9x");
930 # first clear out any nodes on this dxchannel
931 my @rout = $parent->del_nodes;
932 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
933 $self->send_local_config();
941 my $homenode = shift;
944 # add this station to the user database, if required (don't remove SSID from nodes)
945 my $user = DXUser::get_current($call);
947 $user = DXUser->new($call);
948 $user->sort($type || 'U');
949 if ($user->is_node) {
950 $user->priv(1); # I have relented and defaulted nodes
953 $user->homenode($homenode) if $homenode;
954 $user->node($homenode);
958 $user->lastin($main::systime); # this makes it last longer than just this invocation
960 dbg(sprintf "DXProt: PC92 new user record for $call created type: %s priv: %d lockout: %d", $user->sort, $user->priv, $user->lockout);
963 # this is to fix a problem I introduced some build ago by using this function for users
964 # whereas it was only being used for nodes.
965 if ($user->is_user && $user->lockout && ($user->priv || 0) == 1) {
966 dbg(sprintf "DXProt: PC92 user record for $call type: %s priv: %d lockout: %d updated, depriv'd and unlocked", $user->sort, $user->priv, $user->lockout);
971 $user->put if $changed; # just to make sure it gets written away!!!
975 # incoming cluster list
985 my $newline = "PC19^";
988 my (@rout, @pc92out);
990 # first get the INTERFACE node
991 my $parent = Route::Node::get($self->{call});
993 dbg("PCPROT: my parent $self->{call} has disappeared");
1002 # We are making a major change from now on. We are only going to accept
1003 # PC19s from directly connected nodes. This means that we are probably
1004 # going to throw away most of the data that we are being sent.
1006 # The justification for this is that most of it is wrong or out of date
1009 # From now on we are only going to believe PC92 data and locally connected
1012 for ($i = 1; $i < $#$pc-1; $i += 4) {
1013 my $here = $pc->[$i];
1014 my $call = uc $pc->[$i+1];
1015 my $conf = $pc->[$i+2];
1016 my $ver = $pc->[$i+3];
1017 next unless defined $here && defined $conf && is_callsign($call);
1019 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
1021 # check for sane parameters
1022 # $ver = 5000 if $ver eq '0000';
1023 next unless $ver && $ver =~ /^\d+$/;
1024 next if $ver < 5000; # only works with version 5 software
1025 next if length $call < 3; # min 3 letter callsigns
1026 next if $call eq $main::mycall || $call eq $main::myalias;
1028 # check that this PC19 isn't trying to alter the wrong dxchan
1030 my $dxchan = DXChannel::get($call);
1032 if ($dxchan == $self) {
1035 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
1040 # isolate now means only accept stuff from this call only
1041 if ($self->{isolate} && $call ne $self->{call}) {
1042 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
1046 if ($call eq $main::myalias) {
1047 LogDbg('err', "ROUTE: $call eq \$myalias from $self->{call}, ignored!!!");
1048 dbgprintring(3) if isdbg('nologchan');
1053 if ($parent->via_pc92) {
1054 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
1059 my $user = check_add_user($call, 'A');
1060 my $r = Route::Node::get($call);
1061 my $flags = Route::here($here)|Route::conf($conf);
1063 # modify the routing table if it is in it, otherwise store it in the pc19list for now
1066 if ($call ne $parent->call) {
1067 if ($self->in_filter_route($r)) {
1068 $ar = $parent->add($call, $ver, $flags);
1069 # push @rout, $ar if $ar;
1074 if ($r->version ne $ver || $r->flags != $flags) {
1080 if ($call eq $self->{call} || $user->wantroutepc19) {
1081 my $new = Route->new($call); # throw away
1082 if ($self->in_filter_route($new)) {
1083 my $ar = $parent->add($call, $ver, $flags);
1084 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
1085 push @rout, $ar if $ar;
1086 push @pc92out, $r if $h;
1093 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
1094 my $mref = DXMsg::get_busy($call);
1095 $mref->stop_msg($call) if $mref;
1097 $user->lastin($main::systime) unless DXChannel::get($call);
1101 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
1102 # but remember there will only be one (pair) these because any extras will be
1105 # $self->route_pc21($self->{call}, $line, @rout);
1106 $self->route_pc19($self->{call}, $line, @rout);
1108 if (@pc92out && !$pc92_slug_changes) {
1109 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
1113 # send local configuration
1122 if ($self->{do_pc9x} && $self->{state} ne 'init92' && $self->{state} ne 'normal') {
1123 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1124 $self->{do_pc9x} = 0;
1126 $self->send_local_config;
1127 $self->send(pc22());
1128 $self->state('normal');
1129 $self->{lastping} = 0;
1130 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1133 # delete a cluster from the list
1135 # This should never occur for directly connected nodes.
1145 my $call = uc $pc->[1];
1147 eph_del_regex("^PC1[679].*$call");
1149 # if I get a PC21 from the same callsign as self then ignore it
1150 if ($call eq $self->{call}) {
1151 dbg("PCPROT: self referencing PC21 from $self->{call}");
1155 # for the above reason and also because of the check for PC21s coming
1156 # in for self->call from outside being ignored further down
1157 # we don't need any isolation code here, because we will never
1158 # act on a PC21 with self->call in it.
1160 my $parent = Route::Node::get($self->{call});
1162 dbg("PCPROT: my parent $self->{call} has disappeared");
1169 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
1170 my $node = Route::Node::get($call);
1173 if ($node->via_pc92) {
1174 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1178 my $dxchan = DXChannel::get($call);
1179 if ($dxchan && $dxchan != $self) {
1180 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1185 return unless $self->in_filter_route($node);
1187 # routing objects, force a PC21 if it is local
1188 push @rout, $node->del($parent);
1189 push @rout, $call if $dxchan && @rout == 0;
1192 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1196 if (eph_dup($line)) {
1201 $self->route_pc21($origin, $line, @rout);
1202 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1215 if ($self->{do_pc9x}) {
1216 if ($self->{state} ne 'init92' && $self->{state} ne 'normal') {
1217 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1218 $self->{do_pc9x} = 0;
1221 $self->{lastping} = 0;
1222 $self->state('normal');
1223 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1235 # route foreign' pc27s
1237 if ($pc->[8] ne $main::mycall) {
1238 $self->route($pc->[8], $line);
1245 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1246 my $sfi = unpad($pc->[3]);
1247 my $k = unpad($pc->[4]);
1248 my $i = unpad($pc->[5]);
1249 my ($r) = $pc->[6] =~ /R=(\d+)/;
1251 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1252 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1256 # global wwv filtering on INPUT
1257 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1258 if ($self->{inwwvfilter}) {
1259 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1261 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1265 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1266 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1267 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1271 # note this only takes the first one it gets
1272 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1273 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1275 if (defined &Local::wwv) {
1278 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1283 # DON'T be silly and send on PC27s!
1284 return if $pcno == 27;
1286 # broadcast to the eager world
1287 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1299 my $call = uc $pc->[1];
1301 $nref = Route::Node::get($call);
1302 $uref = Route::User::get($call);
1303 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1305 if (eph_dup($line)) {
1309 $nref->here($pc->[2]) if $nref;
1310 $uref->here($pc->[2]) if $uref;
1311 my $ref = $nref || $uref;
1312 return unless $self->in_filter_route($ref);
1314 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1326 if ($pc->[1] ne $main::mycall) {
1327 $self->route($pc->[1], $line);
1330 if ($pc->[2] eq $main::mycall) {
1331 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1335 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1339 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1342 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1348 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1351 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1356 sub handle_26 {goto &handle_11}
1357 sub handle_27 {goto &handle_23}
1359 # mail/file handling
1368 if ($pc->[1] eq $main::mycall) {
1370 my $sub = "DXMsg::handle_$pcno";
1373 $self->route($pc->[1], $line) unless $self->is_clx;
1377 sub handle_29 {goto &handle_28}
1378 sub handle_30 {goto &handle_28}
1379 sub handle_31 {goto &handle_28}
1380 sub handle_32 {goto &handle_28}
1381 sub handle_33 {goto &handle_28}
1391 if (eph_dup($line, $eph_pc34_restime)) {
1394 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1398 # remote command replies
1407 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1408 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1411 sub handle_36 {goto &handle_34}
1422 if ($pc->[1] eq $main::mycall) {
1424 my $sub = "DXDb::handle_$pcno";
1427 $self->route($pc->[1], $line) unless $self->is_clx;
1431 # node connected list from neighbour
1441 # incoming disconnect
1450 if ($pc->[1] eq $self->{call}) {
1451 $self->disconnect(1);
1453 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1457 sub handle_40 {goto &handle_28}
1468 my $call = $pc->[1];
1469 my $sort = $pc->[2];
1472 my $l = "PC41^$call^$sort";
1473 if (eph_dup($l, $eph_info_restime)) {
1477 # input filter if required
1478 # my $ref = Route::get($call) || Route->new($call);
1479 # return unless $self->in_filter_route($ref);
1481 if ($val eq $sort || $val =~ /^\s*$/) {
1482 dbg('PCPROT: invalid value') if isdbg('chanerr');
1486 if ($call eq $main::mycall || $call eq $main::myalias) {
1487 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1490 my $chan = DXChannel::get($call);
1492 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1496 # add this station to the user database, if required
1497 my $user = DXUser::get_current($call);
1498 $user = DXUser->new($call) unless $user;
1501 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1502 dbg("PCPROT: invalid name") if isdbg('chanerr');
1506 } elsif ($sort == 2) {
1508 } elsif ($sort == 3) {
1509 if (is_latlong($val)) {
1510 my ($lat, $long) = DXBearing::stoll($val);
1511 $user->lat($lat) if $lat;
1512 $user->long($long) if $long;
1513 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1515 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1518 } elsif ($sort == 4) {
1519 $user->homenode($val);
1520 } elsif ($sort == 5) {
1521 if (is_qra(uc $val)) {
1522 my ($lat, $long) = DXBearing::qratoll(uc $val);
1523 $user->lat($lat) if $lat && !$user->lat;
1524 $user->long($long) if $long && !$user->long;
1525 $user->qra(uc $val);
1527 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1531 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1534 unless ($self->{isolate}) {
1535 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1538 # perhaps this IS what we want after all
1539 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1542 sub handle_42 {goto &handle_28}
1546 sub handle_44 {goto &handle_37}
1547 sub handle_45 {goto &handle_37}
1548 sub handle_46 {goto &handle_37}
1549 sub handle_47 {goto &handle_37}
1550 sub handle_48 {goto &handle_37}
1552 # message and database
1561 if (eph_dup($line)) {
1565 if ($pc->[1] eq $main::mycall) {
1566 DXMsg::handle_49($self, @$pc);
1568 $self->route($pc->[1], $line) unless $self->is_clx;
1572 # keep alive/user list
1581 return if (eph_dup($line));
1583 my $call = $pc->[1];
1585 my $node = Route::Node::get($call);
1587 return unless $node->call eq $self->{call};
1588 $node->usercount($pc->[2]) unless $node->users;
1590 $node->PC92C_dxchan($self->call, $pc->[-1]);
1592 # input filter if required
1593 # return unless $self->in_filter_route($node);
1595 unless ($self->{isolate}) {
1596 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1598 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1602 # incoming ping requests/answers
1612 my $from = $pc->[2];
1613 my $flag = $pc->[3];
1615 if ($to eq $main::myalias) {
1616 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1621 if ($to eq $main::mycall) {
1623 $self->send(pc51($from, $to, '0'));
1625 DXXml::Ping::handle_ping_reply($self, $from);
1628 if (eph_dup($line)) {
1631 # route down an appropriate thingy
1632 $self->route($to, $line);
1636 sub handle_61 { goto &handle_11; }
1638 # dunno but route it
1647 my $call = $pc->[1];
1648 if ($call ne $main::mycall) {
1649 $self->route($call, $line);
1662 my $call = $pc->[1];
1665 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1666 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1667 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1670 $pc = [ map { unpad($_) } @$pc ];
1672 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1676 my $wcy = WCY::update($d, @$pc[2..12]);
1677 dbg("WCY: <$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');
1679 if (defined &Local::wcy) {
1682 $rep = Local::wcy($self, @$pc[1..12]);
1687 # broadcast to the eager world
1688 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1691 # remote commands (incoming)
1700 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1703 # remote command replies
1712 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1715 # decode a pc92 call: flag call : version : build
1716 sub _decode_pc92_call
1719 my @part = split /:/, $icall;
1720 my ($flag, $call) = unpack "A A*", $part[0];
1721 unless (defined $flag && $flag ge '0' && $flag le '7') {
1722 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1725 unless ($call && is_callsign($call)) {
1726 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1729 my $is_node = $flag & 4;
1730 my $is_extnode = $flag & 2;
1731 my $here = $flag & 1;
1732 my $version = $part[1] || 0;
1733 my $build = $part[2] || 0;
1734 my $ip = $part[3] || '';
1736 # remember that, at this stage, IPV6 addresses have : replaced by ,
1737 if (length $version > 4 && $version =~ /[,\.][\da-f]{1,4}/i) {
1741 $version =~ s/\D//g;
1742 $version = 0 unless $version && $version =~ /^[0-9]+$/;
1745 $build = 0 unless $build && $build =~ /^[0-9]+$/;
1748 $ip =~ s/^::ffff://i;
1749 $ip = '' unless is_ipaddr($ip);
1751 dbg("'$icall' = '" . join("', '", $call, $is_node, $is_extnode, $here, $version, $build, $ip) . "'") if isdbg('pc92');
1752 return ($call, $is_node, $is_extnode, $here, $version+0, $build+0, $ip);
1755 # decode a pc92 call: flag call : version : build
1756 sub _encode_pc92_call
1760 # plain call or value
1761 return $ref unless ref $ref;
1763 my $ext = shift || 0;
1765 my $call = $ref->call;
1767 $flag |= $ref->here ? 1 : 0;
1768 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1770 my $dxchan = DXChannel::get($call);
1771 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1772 if (($ext & 1) && $ref->version) {
1773 my $version = $ref->version || 1.0;
1774 $version = $version * 100 + 5300 if $version < 50;
1775 $extra .= ":" . $version;
1778 if (($ext & 2) && $ref->ip) {
1781 $extra .= ':' . $ip;
1784 return "$flag$call$extra";
1797 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1800 # remove spurious IPV6 prefix on IPV4 addresses
1805 my $ncall = $parent->call;
1806 if ($ncall ne $call) {
1810 # normalise call, delete any unnormalised calls in the users file.
1811 # then ignore this thingy
1812 my $normcall = normalise_call($call);
1813 if ($normcall ne $call) {
1814 next if DXChannel::get($call);
1815 $user = DXUser::get($call);
1816 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1817 $user->del if $user;
1818 $call = $normcall; # this is safe because a route add will ignore duplicates
1821 if ($call eq $main::myalias && $is_node) {
1822 LogDbg('err', "ROUTE: $call eq \$myalias from $ncall - downgraded to user!!!");
1823 dbgprintring(3) if isdbg('nologchan');
1827 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1828 $user = check_add_user($call, 'S');
1829 @rout = $parent->add($call, $version, Route::here($here), $ip);
1830 $r = Route::Node::get($call);
1831 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1832 if ($version && is_numeric($version) && !$r->K && !$user->K) {
1833 my $old = $user->sort;
1834 if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1836 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1837 } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455))) {
1838 unless ($version > 0 && $build == 0) {
1841 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1845 $r->version($user->version) if $user->version;
1846 $r->build($user->build) if $user->build;
1847 $r->K(1) if $user->K;
1849 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1850 $user = check_add_user($call, 'U', $parent->call);
1851 @rout = $parent->add_user($call, Route::here($here), $ip);
1852 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1853 $r = Route::User::get($call);
1857 Log('DXProt', "PC92A $call -> $ip on $ncall");
1859 if ($pc92_slug_changes && $parent == $main::routeroot) {
1860 $things_add{$call} = Route::get($call);
1861 delete $things_del{$call};
1863 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1865 dbgprintring(10) if isdbg('nologchan');
1866 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1878 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1883 $ref = Route::Node::get($call);
1884 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1885 @rout = $ref->del($parent) if $ref;
1887 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1888 $ref = Route::User::get($call);
1890 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1891 @rout = $parent->del_user($ref);
1894 if ($pc92_slug_changes && $parent == $main::routeroot) {
1895 $things_del{$call} = $ref unless exists $things_add{$call};
1896 delete $things_add{$call};
1902 # this will only happen if we are slugging changes and
1903 # there are some changes to be sent, it will create an add or a delete
1905 sub gen_pc92_changes
1907 my @add = values %things_add;
1908 my @del = values %things_del;
1909 return (\@add, \@del);
1912 sub clear_pc92_changes
1914 %things_add = %things_del = ();
1915 $last_pc92_slug = $main::systime;
1924 return $_last_pc9x_id;
1929 if (!$_last_time || $_last_time != $main::systime) {
1930 $_last_time = $main::systime;
1932 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1935 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1946 # check that the time is between 0 >= $t < 86400
1947 unless ($t >= 0 && $t < 86400) {
1948 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1952 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1953 my $now = $main::systime - $main::systime_daystart ;
1954 my $diff = abs($now - $t);
1955 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1956 my $c = ref $call ? $call->call : $call;
1957 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1961 my $parent = ref $call ? $call : Route::Node::get($call);
1963 # we only do this for external calls whose routing table
1964 # record come and go. The reference for mycall is permanent
1965 # and not that frequently used, it also never times out, so
1966 # the id on it is completely unreliable. Besides, only commands
1967 # originating on this box will go through this code...
1968 if ($parent->call ne $main::mycall) {
1969 my $lastid = $parent->lastid;
1970 if (defined $lastid) {
1972 # note that this is where we determine whether this pc9x has come in yesterday
1973 # but is still greater (modulo 86400) than the lastid or is simply an old
1974 # duplicate sentence. To determine this we need to do some module 86400
1975 # arithmetic. High numbers mean that this is an old duplicate sentence,
1976 # low numbers that it is a new sentence.
1978 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1979 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1980 # 86378 respectively in the calculation below).
1982 if ($t+86400-$lastid > $pc9x_past_age) {
1983 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1986 } elsif ($t == $lastid) {
1987 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1990 # check that if we have a low number in lastid that yesterday's numbers
1991 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1992 if ($lastid+86400-$t < $pc9x_past_age) {
1993 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
2000 $parent = Route::Node->new($call);
2002 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
2005 if (isdbg('pc92dedupe')) {
2006 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
2007 my $val = $parent->{lastid};
2008 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
2009 dbg("PCPROT: $call pc92 id lastid $s -> $t");
2011 $parent->lastid($t);
2016 sub pc92_handle_first_slot
2023 my $oparent = $parent;
2027 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
2028 if ($call && $is_node) {
2029 if ($call eq $main::mycall) {
2030 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
2033 if ($call eq $main::myalias) {
2034 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
2037 # this is only accepted from my "self".
2038 # this also kills configs from PC92 nodes with external PC19 nodes that are also
2039 # locally connected. Local nodes always take precedence. But we remember the lastid
2040 # to try to reduce the number of dupe PC92s for this external node.
2041 if (DXChannel::get($call) && $call ne $self->{call}) {
2042 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
2043 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
2047 # reparent to external node (note that we must have received a 'C' or 'A' record
2048 # from the true parent node for this external before we get one for the this node
2049 unless ($parent = Route::Node::get($call)) {
2050 if ($is_extnode && $oparent) {
2051 @radd = _add_thingy($oparent, $slot, $self, $hops);
2054 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
2058 $parent = check_pc9x_t($call, $t, 92) || return;
2059 $parent->via_pc92(1);
2060 $parent->PC92C_dxchan($self->{call}, $hops);
2063 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
2066 $parent->here(Route::here($here));
2067 $parent->version($version || $pc19_version) if $version;
2068 $parent->build($build) if $build;
2069 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2070 return ($parent, @radd);
2073 # DXSpider routing entries
2084 my $pcall = $pc->[1];
2086 my $sort = $pc->[3];
2087 my $hops = $pc->[-1];
2089 # this catches loops of A/Ds
2090 # if (eph_dup($line, $pc9x_dupe_age)) {
2094 if ($pcall eq $main::mycall) {
2095 LogDbg('err', "PCPROT: looped back, ignored");
2099 if ($pcall eq $main::myalias) {
2100 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
2104 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
2105 if ($self->{isolate}) {
2106 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
2108 } elsif (!$self->user->wantpc9x) {
2109 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
2112 $self->state('init92');
2113 $self->{do_pc9x} = 1;
2114 dbg("DXPROT: Do pc9x set on $pcall");
2117 unless ($self->{do_pc9x}) {
2118 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2122 # don't create routing entries for D records that don't already exist
2123 # this is what causes all those PC92 loops!
2124 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
2125 my $oparent = $parent;
2127 $parent->do_pc9x(1);
2128 $parent->via_pc92(1);
2130 if ($sort eq 'F' || $sort eq 'R') {
2132 # this is the route finding section
2133 # here is where the consequences of the 'find' command
2136 my $from = $pc->[4];
2137 my $target = $pc->[5];
2143 if ($ref = DXChannel::get($target)) {
2144 $flag = 1; # we are directly connected
2146 $ref = Route::get($target);
2147 $dxchan = $ref->dxchan;
2150 if ($ref && $flag && $dxchan) {
2151 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
2154 } elsif ($sort eq 'R') {
2155 if (my $dxchan = DXChannel::get($from)) {
2156 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
2158 my $ref = Route::get($from);
2160 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
2162 $_->send($line) for @dxchan;
2164 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2167 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2173 } elsif ($sort eq 'K') {
2174 $pc92Kin += length $line;
2176 # remember the last channel we arrived on
2177 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2179 my @ent = _decode_pc92_call($pc->[4]);
2184 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
2185 return unless $parent; # dupe
2187 push @radd, $add if $add;
2189 my $call = $parent->call;
2190 my $version = $ent[4] || 0;
2191 my $build = $ent[5] || 0;
2193 my $oldbuild = $parent->build || 0;
2194 my $oldversion = $parent->version || 0;
2195 my $user = check_add_user($parent->call, 'S');
2196 my $oldsort = $user->sort // '';
2198 dbg("PCPROT: PC92 K v: $version ov: $oldversion b: $build ob: $oldbuild pk: " . ($parent->K || '0') . " uk: " . ($user->K || 0)) if isdbg('pc92k');
2200 if (is_numeric($version) || is_numeric($build)) {
2202 if (($oldversion ne $version || $build ne $oldbuild)) {
2203 dbg("PCPROT: PC92 K rec, node $call updated version: $version (was $oldversion) build: $build (was $oldbuild)");
2204 $user->version($parent->version($version));
2205 $user->build($parent->build($build));
2209 if ($oldsort ne 'S') {
2211 dbg(sprintf "PCPROT: PC92 K rec, node $call updated sort: $oldsort->S");
2215 unless (DXChannel::get($user->call)) { # only do this if not connected
2216 my $oldpriv = $user->priv;
2217 my $oldlock = $user->lockout;
2218 my $lastchanged = $changed;
2219 $user->priv(1), ++$changed unless defined $oldpriv && $oldpriv;
2220 $user->lockout(1), ++$changed unless defined $oldlock;
2221 dbg(sprintf "PCPROT: PC92 K rec, node $call updated priv: '$oldpriv'->%d lockout: '$oldlock'->%s", $user->priv || 0, $user->lockout || 0) if $lastchanged != $changed;
2224 dbg(sprintf "PCPROT: PC92 K rec, node $call updated - marked as sending PC92 K records priv: %d lockout: %d ", $user->priv || 0, $user->lockout || 0);
2228 $user->put if $changed;
2229 $parent->K(1); # mark this as come in on a K
2231 dbg("DXProt PC92 K rec, version call $call: invalid version: '$version' or build: '$version', ignored");
2233 dbg("ROUTE: reset obscount on $call now " . $parent->obscount) if isdbg('obscount');
2235 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2237 $pc92Ain += length $line if $sort eq 'A';
2238 $pc92Cin += length $line if $sort eq 'C';
2239 $pc92Din += length $line if $sort eq 'D';
2241 # remember the last channel we arrived on
2242 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2244 # this is the main route section
2245 # here is where all the routes are created and destroyed
2247 # cope with missing duplicate node calls in the first slot
2248 my $me = $pc->[4] || '';
2249 $me ||= _encode_pc92_call($parent) unless $me ;
2251 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2255 # look at the first one which will always be a node of some sort
2256 # except in the case of 'A' or 'D' in which the $pcall is used
2257 # otherwise use the node call and update any information
2258 # that needs to be done.
2261 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2262 return unless $parent; # dupe
2265 push @radd, $add if $add;
2268 # do a pass through removing any references to either mycall
2272 next unless $_ && @$_;
2273 if ($_->[0] eq $main::mycall) {
2274 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2278 my $isnode = ($_->[1] | $_->[2]);
2279 if (($_->[0] eq $main::myalias && $isnode) || ($_->[0] eq $main::mycall && !$isnode)) {
2280 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2289 push @radd, _add_thingy($parent, $_, $self, $hops);
2291 } elsif ($sort eq 'D') {
2293 push @rdel, _del_thingy($parent, $_, $self);
2295 } elsif ($sort eq 'C') {
2296 my (@nodes, @users);
2298 # we reset obscounts on config records as well as K records
2300 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2303 foreach my $r (@nent) {
2304 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2307 push @nodes, $r->[0];
2309 push @users, $r->[0];
2312 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2316 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2319 foreach my $r (@nent) {
2322 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2326 foreach my $r (@$dnodes) {
2327 push @rdel,_del_thingy($parent, [$r, 1], $self);
2329 foreach my $r (@$dusers) {
2330 push @rdel,_del_thingy($parent, [$r, 0], $self);
2333 # remember this last PC92C for rebroadcast on demand
2334 $parent->last_PC92C($line);
2336 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2340 foreach my $r (@rdel) {
2343 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2344 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2346 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2347 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2348 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2349 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2350 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2353 # broadcast it if we get here (but not if it's an A or D record and pc92_ad_enabled isn't set;
2354 if ($sort eq 'A' || $sort eq 'D') {
2355 return unless $pc92_ad_enabled;
2357 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2360 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2361 # might be on two or more nodes at the same time or that there may be more than
2362 # one equal distance neighbour to a node.
2364 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2365 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2366 # each and then combined to give a set of dxchans to send the PC9x record down
2368 sub find_pc9x_routes
2371 my $ref = Route::get($to);
2375 if ($ref->isa('Route::User')) {
2376 my $dxchan = DXChannel::get($to);
2377 push @parent, $to if $dxchan;
2378 push @parent, $ref->parents;
2382 foreach my $p (@parent) {
2384 my @routes = Route::findroutes($p);
2385 foreach my $r (@routes) {
2386 $lasthops = $r->[0] unless defined $lasthops;
2387 if ($r->[0] == $lasthops) {
2388 $cand{$r->[1]->call} = $r->[1];
2394 return values %cand;
2405 # $self->{do_pc9x} ||= 1;
2407 my $pcall = $pc->[1]; # this is now checked earlier
2409 # remember that we are converting PC10->PC93 and self will be $main::me if it
2411 unless ($self->{do_pc9x}) {
2412 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2417 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2419 my $to = uc $pc->[3];
2420 my $from = uc $pc->[4];
2421 my $via = uc $pc->[5];
2422 my $text = $pc->[6];
2423 my $onode = uc $pc->[7];
2424 my $ipaddr = $pc->[8];
2426 $onode = undef unless $onode && is_callsign($onode);
2428 $ipaddr = undef unless $ipaddr && is_ipaddr($ipaddr);
2430 # this is catch loops caused by bad software ...
2431 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2435 if (isdbg('progress')) {
2436 my $vs = $via ne '*' ? " via $via" : '';
2437 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2441 # if this is a 'bad spotter' user then ignore it
2443 $nossid =~ s/-\d+$//;
2444 if ($badspotter->in($nossid)) {
2445 dbg($line) if isdbg('nologchan');
2446 dbg("PCPROT: Bad Spotter, dropped");
2450 # ignore PC93 coming in from outside this node with a target of local
2451 if ($to eq 'LOCAL' && $self != $main::me) {
2452 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2456 # will we allow it at all?
2459 if (@bad = BadWords::check($text)) {
2460 my $bw = join ', ', @bad;
2461 dbg($line) if isdbg('nologchan');
2462 dbg("PCPROT: Badwords: '$bw', dropped");
2467 $self->populate_routing_table($onode, $from, $ipaddr) if $pc61_extract_route;
2469 # if it is routeable then then treat it like a talk
2470 my $ref = Route::get($to);
2474 # convert to PC10 or local talks where appropriate
2475 # PC93 capable nodes of the same hop count all get a copy
2476 # if there is a PC10 node then it will get a copy and that
2477 # will be it. Hopefully such a node will not figure highly
2478 # in the route list, unless it is local, 'cos it don't issue PC92s!
2479 # note that both local and PC93s at the same time are possible if the
2480 # user on more than one node.
2481 my @routes = find_pc9x_routes($to);
2483 foreach $dxchan (@routes) {
2484 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2485 if ($dxchan->{do_pc9x}) {
2486 $dxchan->send($line);
2488 $dxchan->talk($from, $to, $via, $text, $onode);
2491 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2496 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2498 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2499 my $wx = $to eq 'WX' ? '1' : '0';
2500 my $local = $via eq 'LOCAL' ? '*' : $via;
2502 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2503 return if $via eq 'LOCAL';
2504 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2505 # chat messages really only locally connected users
2506 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2509 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2510 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2513 # if get here then rebroadcast the thing with its Hop count decremented (if
2514 # there is one). If it has a hop count and it decrements to zero then don't
2517 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2529 unless (eph_dup($line)) {
2531 my $pcall = $pc->[1];
2532 unless (is_callsign($pcall)) {
2533 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2537 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2538 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2540 unless ($self->{isolate}) {
2541 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
2547 # does what it says on the tin..
2548 sub populate_routing_table
2550 my ($self, $node, $user, $ip) = @_;
2552 my $rn = Route::Node::get($node);
2554 $rn = Route::Node->new($node);
2555 dbg("ROUTE $self->{call}: ADD NEW node: $node") if isdbg('pc11');
2559 if ($user ne $node) {
2560 $ru = Route::User::get($user);
2562 $rn->add_user($user, 0, undef);
2563 dbg("ROUTE $self->{call}: ADD NEW user: $user -> $node") if isdbg('pc11');
2565 $ru = Route::User::get($user);
2568 # Add/Change any IP address info
2570 # as we have a route to a user, if it (or the node) does not exist then create them
2571 # link the user to the node if not already done.
2572 # then add or alter the IP address
2573 if ($ip && is_ipaddr($ip)) {
2576 if ($ru->ip ne $new) {
2580 dbg("ROUTE $self->{call}: ALTER IP node: $node user: $user old IP: '$old'-> new IP: '$new'") if isdbg('pc11');
2583 dbg("ROUTE $self->{call}: NEW IP node: $node user: $user IP: '$new'") if isdbg('pc11');
2587 dbg("ROUTE $self->{call}: ADD Failed for node $node user $user") if isdbg('pc11');