3 # This module impliments the handlers for the protocal mode for a dx cluster
5 # Copyright (c) 1998-2007 Dirk Koopman G1TLH
38 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
39 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
40 $pingint $obscount %pc19list $chatdupeage $chatimportfn
41 $investigation_int $pc19_version $myprot_version
42 %nodehops $baddx $badspotter $badnode $censorpc
43 $allowzero $decode_dk0wcy $send_opernam @checklist
44 $eph_pc15_restime $pc9x_past_age $pc9x_dupe_age
45 $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
46 $pc92Ain $pc92Cin $pc92Din $pc92Kin $pc9x_time_tolerance
50 $pc9x_dupe_age = 60; # catch loops of circular (usually) D records
51 $pc10_dupe_age = 45; # just something to catch duplicate PC10->PC93 conversions
52 $pc92_slug_changes = 60*2; # slug any changes going outward for this long
53 $last_pc92_slug = time; # the last time we sent out any delayed add or del PC92s
54 $pc9x_time_tolerance = 15*60; # the time on a pc9x is allowed to be out by this amount
55 $pc9x_past_age = (122*60)+ # maximum age in the past of a px9x (a config record might be the only
56 $pc9x_time_tolerance; # thing a node might send - once an hour and we allow an extra hour for luck)
57 # this is actually the partition between "yesterday" and "today" but old.
59 $pc92filterdef = bless ([
60 # tag, sort, field, priv, special parser
69 # this is a place to park an incoming PC11 in the sure and certain hope that
70 # a PC61 will be along soon. This has the side benefit that it will delay a
71 # a PC11 for one second - assuming that it is not removed by a PC61 version
73 # incoming talk commands
82 # this is to catch loops caused by bad software ...
83 if (eph_dup($line, $pc10_dupe_age)) {
87 # will we allow it at all?
90 if (@bad = BadWords::check($pc->[3])) {
91 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
96 # is it for me or one of mine?
97 my ($from, $to, $via, $call, $dxchan);
99 if ($pc->[5] gt ' ') {
106 # if this is a 'nodx' node then ignore it
107 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
108 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
112 # if this is a 'bad spotter' user then ignore it
114 $nossid =~ s/-\d+$//;
115 if ($badspotter->in($nossid)) {
116 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
120 # if we are converting announces to talk is it a dup?
122 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
123 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
128 # convert this to a PC93, coming from mycall with origin set and process it as such
129 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
143 # route 'foreign' pc26s
145 if ($pc->[7] ne $main::mycall) {
146 $self->route($pc->[7], $line);
151 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
153 # is the spotted callsign blank? This should really be trapped earlier but it
154 # could break other protocol sentences. Also check for lower case characters.
155 if ($pc->[2] =~ /^\s*$/) {
156 dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
159 if ($pc->[2] =~ /[a-z]/) {
160 dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
165 # if this is a 'nodx' node then ignore it
166 if ($badnode->in($pc->[7])) {
167 dbg("PCPROT: Bad Node $pc->[7], dropped") if isdbg('chanerr');
171 # if this is a 'bad spotter' or an unknown user then ignore it. BUT if it's got an IP address then allow it through
172 my $nossid = $pc->[6];
173 $nossid =~ s/-\d+$//;
174 if ($badspotter->in($nossid)) {
175 dbg("PCPROT: Bad Spotter $pc->[6], dropped") if isdbg('chanerr');
178 # unless (is_ipaddr($pc->[8]) || DXUser::get_current($pc->[6])) {
179 # dbg("PCPROT: Unknown Spotter $pc->[6], dropped") if isdbg('chanerr');
183 # convert the date to a unix date
184 my $d = cltounix($pc->[3], $pc->[4]);
185 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
186 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
187 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n") if isdbg('chanerr');
192 if ($baddx->in($pc->[2]) || BadWords::check($pc->[2])) {
193 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
198 $pc->[5] =~ s/^\s+//; # take any leading blanks off
199 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
200 if ($pc->[2] =~ /BUST\w*$/) {
201 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
206 if (@bad = BadWords::check($pc->[5])) {
207 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
212 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
214 # global spot filtering on INPUT
215 if ($self->{inspotsfilter}) {
216 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
218 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
223 # If is a new PC11, store it, releasing the one that is there (if any),
224 # if a PC61 comes along then dump the stored PC11
225 # If there is a different PC11 stored, release that one and store this PC11 instead,
226 my $key = join '|', @spot[0..2,4,7];
229 if ($pc->[0] eq 'PC11') {
230 my $r = [$main::systime, $key, \@spot, $line, $origin, $pc];
232 $last = [$main::systime, $key, \@spot, $line, $origin, $pc];
233 dbg("PC11: $origin -> $key stored") if isdbg('pc11');
235 } elsif ($key eq $last->[1]) { # same as last one
236 dbg("PC11: $origin -> $key dupe dropped") if isdbg('pc11');
239 # it's a different PC11, kick the stored one onward and store this one instead,
240 dbg("PC11: PC11 new $origin -> $key stored, $last->[4] -> $last->[1] passed onward") if isdbg('pc11');
241 @spot = @{$last->[2]};
243 $origin = $last->[4];
247 } elsif ($pc->[0] eq 'PC61') {
249 if ($last->[1] eq $key) {
250 # dump $last and proceed with the PC61
251 dbg("PC11: $origin -> $key dropped in favour of PC61") if isdbg('pc11');
254 # it's a different spot send out stored pc11
255 dbg("PC11: last $last->[4] -> $last->[1] different PC61 $origin -> $key, send PC11 first ") if isdbg('pc11');
256 $last->[1] = 'new pc61';
257 handle_11($self, 11, $last->[3], $last->[4], $last->[5]);
259 dbg("PC11: now process PC61 $origin -> $key") if isdbg('pc11');
263 dbg("PC11: Unexpected line '$line' in bagging area (expecting PC61, PC11), ignored");
269 # this goes after the input filtering, but before the add
270 # so that if it is input filtered, it isn't added to the dup
271 # list. This allows it to come in from a "legitimate" source
272 if (Spot::dup(@spot[0..4,5])) {
273 dbg("PCPROT: Duplicate Spot $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot');
281 $ip ||= $spot[14] if exists $spot[14];
282 if (isdbg('progress')) {
283 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
285 my $d = ztime($spot[2]);
286 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
287 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
288 $s .= " route: $origin";
293 # @spot at this point contains:-
294 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
295 # then spotted itu, spotted cq, spotters itu, spotters cq
296 # you should be able to route on any of these
299 # fix up qra locators of known users
300 my $user = DXUser::get_current($spot[4]);
302 my $qra = $user->qra;
303 unless ($qra && is_qra($qra)) {
304 my $lat = $user->lat;
305 my $long = $user->long;
306 if (defined $lat && defined $long) {
307 $user->qra(DXBearing::lltoqra($lat, $long));
312 # send a remote command to a distant cluster if it is visible and there is no
313 # qra locator and we havn't done it for a month.
315 unless ($user->qra) {
317 my $to = $user->homenode;
318 my $last = $user->lastoper || 0;
319 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
320 my $cmd = "forward/opernam $spot[4]";
321 # send the rcmd but we aren't interested in the replies...
322 my $dxchan = $node->dxchan;
323 if ($dxchan && $dxchan->is_clx) {
324 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
326 route(undef, $to, pc34($main::mycall, $to, $cmd));
328 if ($to ne $origin) {
330 $node = Route::Node::get($to);
332 $dxchan = $node->dxchan;
333 if ($dxchan && $dxchan->is_clx) {
334 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
336 route(undef, $to, pc34($main::mycall, $to, $cmd));
340 $user->lastoper($main::systime);
347 if (defined &Local::spot) {
350 $r = Local::spot($self, @spot);
355 # DON'T be silly and send on PC26s!
356 return if $pcno == 26;
358 # send out the filtered spots
359 send_dx_spot($self, $line, @spot) if @spot;
362 # used to kick outstanding PC11 if required
377 # announce duplicate checking
378 $pc->[3] =~ s/^\s+//; # remove leading blanks
382 if (@bad = BadWords::check($pc->[3])) {
383 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
388 # if this is a 'nodx' node then ignore it
389 if ($badnode->in($pc->[5])) {
390 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
394 # if this is a 'bad spotter' user then ignore it
395 my $nossid = $pc->[1];
396 $nossid =~ s/-\d+$//;
397 if ($badspotter->in($nossid)) {
398 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
402 # ignore PC12s from origins that use PCxx protocol
403 my $oref = Route::get($origin);
404 if ($oref->do_pc9x) {
405 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
411 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
412 $self->send_chat(0, $line, @$pc[1..6]);
413 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
415 # ignore something that looks like a chat line coming in with sysop
416 # flag - this is a kludge...
417 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
418 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
422 # here's a bit of fun, convert incoming ann with a callsign in the first word
423 # or one saying 'to <call>' to a talk if we can route to the recipient
425 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
427 my $ref = Route::get($call);
429 $dxchan = $ref->dxchan;
430 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
437 $self->send_announce(0, $line, @$pc[1..6]);
439 $self->route($pc->[2], $line);
443 if (defined &Local::ann) {
446 $r = Local::ann($self, $line, @$pc[1..6]);
460 if (eph_dup($line, $eph_pc15_restime)) {
463 unless ($self->{isolate}) {
464 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
480 my $ncall = $pc->[1];
481 my $newline = "PC16^";
483 # dos I want users from this channel?
484 unless ($self->user->wantpc16) {
485 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
490 if ($ncall eq $main::mycall) {
491 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
496 $h = 1 if DXChannel::get($ncall);
497 if ($h && $self->{call} ne $ncall) {
498 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
502 if (eph_dup($line)) {
506 # isolate now means only accept stuff from this call only
507 if ($self->{isolate} && $ncall ne $self->{call}) {
508 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
512 my $parent = Route::Node::get($ncall);
515 $dxchan = $parent->dxchan;
516 if ($dxchan && $dxchan ne $self) {
517 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
521 # input filter if required
522 return unless $self->in_filter_route($parent);
524 $parent = Route::Node->new($ncall);
528 if ($parent->via_pc92) {
529 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
536 for ($i = 2; $i < $#$pc; $i++) {
537 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
538 next unless $call && $conf && defined $here && is_callsign($call);
539 next if $call eq $main::mycall;
541 eph_del_regex("^PC17\\^$call\\^$ncall");
543 $conf = $conf eq '*';
545 # reject this if we think it is a node already
546 my $r = Route::Node::get($call);
547 my $u = DXUser::get_current($call) unless $r;
548 if ($r || ($u && $u->is_node)) {
549 dbg("PCPROT: $call is a node") if isdbg('chanerr');
553 $r = Route::User::get($call);
554 my $flags = Route::here($here)|Route::conf($conf);
557 my $au = $r->addparent($parent);
558 if ($r->flags != $flags) {
562 push @rout, $r if $h && $au;
564 my @ans = $parent->add_user($call, $flags);
565 push @rout, @ans if $h && @ans;
568 # add this station to the user database, if required
569 my $user = DXUser::get_current($ncall);
570 $user = DXUser->new($call) unless $user;
571 $user->homenode($parent->call) if !$user->homenode;
572 $user->node($parent->call);
573 $user->lastin($main::systime) unless DXChannel::get($call);
576 # send info to all logged in thingies
577 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
578 $self->tell_buddies('loginb', $call, $ncall);
581 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
582 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
596 my $ncall = $pc->[2];
597 my $ucall = $pc->[1];
599 eph_del_regex("^PC16\\^$ncall.*$ucall");
601 # do I want users from this channel?
602 unless ($self->user->wantpc16) {
603 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
607 if ($ncall eq $main::mycall) {
608 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
612 # isolate now means only accept stuff from this call only
613 if ($self->{isolate} && $ncall ne $self->{call}) {
614 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
618 my $uref = Route::User::get($ucall);
620 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
623 my $parent = Route::Node::get($ncall);
625 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
629 $dxchan = DXChannel::get($ncall);
630 if ($dxchan && $dxchan ne $self) {
631 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
636 if ($parent->via_pc92) {
637 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
642 if (DXChannel::get($ucall)) {
643 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
647 # input filter if required and then remove user if present
648 # return unless $self->in_filter_route($parent);
649 $parent->del_user($uref);
651 # send info to all logged in thingies
652 my $user = DXUser::get_current($ncall);
653 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
654 $self->tell_buddies('logoutb', $ucall, $ncall);
656 if (eph_dup($line)) {
660 $self->route_pc17($origin, $line, $parent, $uref);
661 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
673 $self->state('init');
675 my $parent = Route::Node::get($self->{call});
677 # record the type and version offered
678 if (my ($version) = $pc->[1] =~ /DXSpider Version: (\d+\.\d+)/) {
679 $self->{version} = 53 + $version;
680 $self->user->version(53 + $version);
681 $parent->version(0 + $version);
682 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
683 $self->{build} = 0 + $build;
684 $self->user->build(0 + $build);
685 $parent->build(0 + $build);
686 dbg("$self->{call} = DXSpider version $version build $build");
687 unless ($self->is_spider) {
688 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
689 $self->user->sort('S');
693 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
695 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
696 $self->version(50.0);
697 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
698 $self->user->version($self->version);
701 if ($pc->[1] =~ /\bpc9x/) {
702 if ($self->{isolate}) {
703 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
704 } elsif (!$self->user->wantpc9x) {
705 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
707 $self->{do_pc9x} = 1;
708 dbg("$self->{call} Set do PC9x");
712 # first clear out any nodes on this dxchannel
713 my @rout = $parent->del_nodes;
714 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
715 $self->send_local_config();
723 # add this station to the user database, if required (don't remove SSID from nodes)
724 my $user = DXUser::get_current($call);
726 $user = DXUser->new($call);
727 $user->priv(1); # I have relented and defaulted nodes
729 $user->homenode($call);
732 $user->lastin($main::systime); # this make it last longer than just this invocation
733 $user->put; # just to make sure it gets written away!!!
738 # incoming cluster list
748 my $newline = "PC19^";
751 my (@rout, @pc92out);
753 # first get the INTERFACE node
754 my $parent = Route::Node::get($self->{call});
756 dbg("PCPROT: my parent $self->{call} has disappeared");
765 # We are making a major change from now on. We are only going to accept
766 # PC19s from directly connected nodes. This means that we are probably
767 # going to throw away most of the data that we are being sent.
769 # The justification for this is that most of it is wrong or out of date
772 # From now on we are only going to believe PC92 data and locally connected
775 for ($i = 1; $i < $#$pc-1; $i += 4) {
776 my $here = $pc->[$i];
777 my $call = uc $pc->[$i+1];
778 my $conf = $pc->[$i+2];
779 my $ver = $pc->[$i+3];
780 next unless defined $here && defined $conf && is_callsign($call);
782 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
784 # check for sane parameters
785 # $ver = 5000 if $ver eq '0000';
786 next unless $ver && $ver =~ /^\d+$/;
787 next if $ver < 5000; # only works with version 5 software
788 next if length $call < 3; # min 3 letter callsigns
789 next if $call eq $main::mycall || $call eq $main::myalias;
791 # check that this PC19 isn't trying to alter the wrong dxchan
793 my $dxchan = DXChannel::get($call);
795 if ($dxchan == $self) {
798 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
803 # isolate now means only accept stuff from this call only
804 if ($self->{isolate} && $call ne $self->{call}) {
805 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
809 my $user = check_add_node($call);
811 # if (eph_dup($genline)) {
812 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
818 if ($parent->via_pc92) {
819 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
824 my $r = Route::Node::get($call);
825 my $flags = Route::here($here)|Route::conf($conf);
827 # modify the routing table if it is in it, otherwise store it in the pc19list for now
830 if ($call ne $parent->call) {
831 if ($self->in_filter_route($r)) {
832 $ar = $parent->add($call, $ver, $flags);
833 # push @rout, $ar if $ar;
838 if ($r->version ne $ver || $r->flags != $flags) {
844 if ($call eq $self->{call} || $user->wantroutepc19) {
845 my $new = Route->new($call); # throw away
846 if ($self->in_filter_route($new)) {
847 my $ar = $parent->add($call, $ver, $flags);
848 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
849 push @rout, $ar if $ar;
850 push @pc92out, $r if $h;
857 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
858 my $mref = DXMsg::get_busy($call);
859 $mref->stop_msg($call) if $mref;
861 $user->lastin($main::systime) unless DXChannel::get($call);
865 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
866 # but remember there will only be one (pair) these because any extras will be
869 # $self->route_pc21($self->{call}, $line, @rout);
870 $self->route_pc19($self->{call}, $line, @rout);
872 if (@pc92out && !$pc92_slug_changes) {
873 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
877 # send local configuration
886 if ($self->{do_pc9x} && $self->{state} ne 'init92') {
887 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
888 $self->{do_pc9x} = 0;
890 $self->send_local_config;
892 $self->state('normal');
893 $self->{lastping} = 0;
894 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
897 # delete a cluster from the list
899 # This should never occur for directly connected nodes.
909 my $call = uc $pc->[1];
911 eph_del_regex("^PC1[679].*$call");
913 # if I get a PC21 from the same callsign as self then ignore it
914 if ($call eq $self->{call}) {
915 dbg("PCPROT: self referencing PC21 from $self->{call}");
919 # for the above reason and also because of the check for PC21s coming
920 # in for self->call from outside being ignored further down
921 # we don't need any isolation code here, because we will never
922 # act on a PC21 with self->call in it.
924 my $parent = Route::Node::get($self->{call});
926 dbg("PCPROT: my parent $self->{call} has disappeared");
933 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
934 my $node = Route::Node::get($call);
937 if ($node->via_pc92) {
938 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
942 my $dxchan = DXChannel::get($call);
943 if ($dxchan && $dxchan != $self) {
944 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
949 return unless $self->in_filter_route($node);
951 # routing objects, force a PC21 if it is local
952 push @rout, $node->del($parent);
953 push @rout, $call if $dxchan && @rout == 0;
956 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
960 if (eph_dup($line)) {
965 $self->route_pc21($origin, $line, @rout);
966 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
979 if ($self->{do_pc9x}) {
980 if ($self->{state} ne 'init92') {
981 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
982 $self->{do_pc9x} = 0;
985 $self->{lastping} = 0;
986 $self->state('normal');
987 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
999 # route foreign' pc27s
1001 if ($pc->[8] ne $main::mycall) {
1002 $self->route($pc->[8], $line);
1009 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1010 my $sfi = unpad($pc->[3]);
1011 my $k = unpad($pc->[4]);
1012 my $i = unpad($pc->[5]);
1013 my ($r) = $pc->[6] =~ /R=(\d+)/;
1015 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1016 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1020 # global wwv filtering on INPUT
1021 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1022 if ($self->{inwwvfilter}) {
1023 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1025 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1029 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1030 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1031 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1035 # note this only takes the first one it gets
1036 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1037 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1039 if (defined &Local::wwv) {
1042 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1047 # DON'T be silly and send on PC27s!
1048 return if $pcno == 27;
1050 # broadcast to the eager world
1051 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1063 my $call = uc $pc->[1];
1065 $nref = Route::Node::get($call);
1066 $uref = Route::User::get($call);
1067 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1069 if (eph_dup($line)) {
1073 $nref->here($pc->[2]) if $nref;
1074 $uref->here($pc->[2]) if $uref;
1075 my $ref = $nref || $uref;
1076 return unless $self->in_filter_route($ref);
1078 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1090 if ($pc->[1] ne $main::mycall) {
1091 $self->route($pc->[1], $line);
1094 if ($pc->[2] eq $main::mycall) {
1095 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1099 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1103 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1106 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1112 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1115 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1120 sub handle_26 {goto &handle_11}
1121 sub handle_27 {goto &handle_23}
1123 # mail/file handling
1132 if ($pc->[1] eq $main::mycall) {
1134 my $sub = "DXMsg::handle_$pcno";
1137 $self->route($pc->[1], $line) unless $self->is_clx;
1141 sub handle_29 {goto &handle_28}
1142 sub handle_30 {goto &handle_28}
1143 sub handle_31 {goto &handle_28}
1144 sub handle_32 {goto &handle_28}
1145 sub handle_33 {goto &handle_28}
1155 if (eph_dup($line, $eph_pc34_restime)) {
1158 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1162 # remote command replies
1171 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1172 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1175 sub handle_36 {goto &handle_34}
1186 if ($pc->[1] eq $main::mycall) {
1188 my $sub = "DXDb::handle_$pcno";
1191 $self->route($pc->[1], $line) unless $self->is_clx;
1195 # node connected list from neighbour
1205 # incoming disconnect
1214 if ($pc->[1] eq $self->{call}) {
1215 $self->disconnect(1);
1217 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1221 sub handle_40 {goto &handle_28}
1232 my $call = $pc->[1];
1233 my $sort = $pc->[2];
1236 my $l = "PC41^$call^$sort";
1237 if (eph_dup($l, $eph_info_restime)) {
1241 # input filter if required
1242 # my $ref = Route::get($call) || Route->new($call);
1243 # return unless $self->in_filter_route($ref);
1245 if ($val eq $sort || $val =~ /^\s*$/) {
1246 dbg('PCPROT: invalid value') if isdbg('chanerr');
1250 if ($call eq $main::mycall || $call eq $main::myalias) {
1251 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1254 my $chan = DXChannel::get($call);
1256 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1260 # add this station to the user database, if required
1261 my $user = DXUser::get_current($call);
1262 $user = DXUser->new($call) unless $user;
1265 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1266 dbg("PCPROT: invalid name") if isdbg('chanerr');
1270 } elsif ($sort == 2) {
1272 } elsif ($sort == 3) {
1273 if (is_latlong($val)) {
1274 my ($lat, $long) = DXBearing::stoll($val);
1275 $user->lat($lat) if $lat;
1276 $user->long($long) if $long;
1277 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1279 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1282 } elsif ($sort == 4) {
1283 $user->homenode($val);
1284 } elsif ($sort == 5) {
1285 if (is_qra(uc $val)) {
1286 my ($lat, $long) = DXBearing::qratoll(uc $val);
1287 $user->lat($lat) if $lat && !$user->lat;
1288 $user->long($long) if $long && !$user->long;
1289 $user->qra(uc $val);
1291 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1295 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1298 unless ($self->{isolate}) {
1299 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1302 # perhaps this IS what we want after all
1303 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1306 sub handle_42 {goto &handle_28}
1310 sub handle_44 {goto &handle_37}
1311 sub handle_45 {goto &handle_37}
1312 sub handle_46 {goto &handle_37}
1313 sub handle_47 {goto &handle_37}
1314 sub handle_48 {goto &handle_37}
1316 # message and database
1325 if (eph_dup($line)) {
1329 if ($pc->[1] eq $main::mycall) {
1330 DXMsg::handle_49($self, @$pc);
1332 $self->route($pc->[1], $line) unless $self->is_clx;
1336 # keep alive/user list
1345 return if (eph_dup($line));
1347 my $call = $pc->[1];
1349 my $node = Route::Node::get($call);
1351 return unless $node->call eq $self->{call};
1352 $node->usercount($pc->[2]) unless $node->users;
1354 $node->PC92C_dxchan($self->call, $pc->[-1]);
1356 # input filter if required
1357 # return unless $self->in_filter_route($node);
1359 unless ($self->{isolate}) {
1360 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1362 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1366 # incoming ping requests/answers
1376 my $from = $pc->[2];
1377 my $flag = $pc->[3];
1379 if ($to eq $main::myalias) {
1380 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1385 if ($to eq $main::mycall) {
1387 $self->send(pc51($from, $to, '0'));
1389 DXXml::Ping::handle_ping_reply($self, $from);
1392 if (eph_dup($line)) {
1395 # route down an appropriate thingy
1396 $self->route($to, $line);
1400 sub handle_61 { goto &handle_11; }
1402 # dunno but route it
1411 my $call = $pc->[1];
1412 if ($call ne $main::mycall) {
1413 $self->route($call, $line);
1426 my $call = $pc->[1];
1429 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1430 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1431 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1434 $pc = [ map { unpad($_) } @$pc ];
1436 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1440 my $wcy = WCY::update($d, @$pc[2..12]);
1441 dbg("WCY: <$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');
1443 if (defined &Local::wcy) {
1446 $rep = Local::wcy($self, @$pc[1..12]);
1451 # broadcast to the eager world
1452 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1455 # remote commands (incoming)
1464 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1467 # remote command replies
1476 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1479 # decode a pc92 call: flag call : version : build
1480 sub _decode_pc92_call
1483 my @part = split /:/, $icall;
1484 my ($flag, $call) = unpack "A A*", $part[0];
1485 unless (defined $flag && $flag ge '0' && $flag le '7') {
1486 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1489 unless ($call && is_callsign($call)) {
1490 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1493 my $is_node = $flag & 4;
1494 my $is_extnode = $flag & 2;
1495 my $here = $flag & 1;
1497 $ip ||= $part[1] if $part[1] && $part[1] !~ /^\d+$/ && ($part[1] =~ /^(?:\d+\.)+/ || $part[1] =~ /^(?:(?:[abcdef\d]+)?,)+/);
1498 $ip =~ s/,/:/g if $ip;
1499 return ($call, $is_node, $is_extnode, $here, $part[1], $part[2], $ip);
1502 # decode a pc92 call: flag call : version : build
1503 sub _encode_pc92_call
1507 # plain call or value
1508 return $ref unless ref $ref;
1510 my $ext = shift || 0;
1512 my $call = $ref->call;
1514 $flag |= $ref->here ? 1 : 0;
1515 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1517 my $dxchan = DXChannel::get($call);
1518 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1519 if (($ext & 1) && $ref->version) {
1520 my $version = $ref->version || 1.0;
1521 $version = $version * 100 + 5300 if $version < 50;
1522 $extra .= ":" . $version;
1525 if (($ext & 2) && $ref->ip) {
1528 $extra .= ':' . $ip;
1530 return "$flag$call$extra";
1543 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1546 # remove spurious IPV6 prefix on IPV4 addresses
1547 $ip =~ s/^::ffff:// if $ip;
1550 my $ncall = $parent->call;
1551 if ($ncall ne $call) {
1553 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1554 @rout = $parent->add($call, $version, Route::here($here), $ip);
1555 my $r = Route::Node::get($call);
1556 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1559 Log('DXProt', "PC92A $call -> $ip on $ncall");
1562 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1563 @rout = $parent->add_user($call, Route::here($here), $ip);
1564 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1565 my $r = Route::User::get($call);
1568 Log('DXProt', "PC92A $call -> $ip on $ncall");
1571 if ($pc92_slug_changes && $parent == $main::routeroot) {
1572 $things_add{$call} = Route::get($call);
1573 delete $things_del{$call};
1576 dbgprintring(10) if isdbg('nologchan');
1577 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1589 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1594 $ref = Route::Node::get($call);
1595 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1596 @rout = $ref->del($parent) if $ref;
1598 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1599 $ref = Route::User::get($call);
1601 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1602 @rout = $parent->del_user($ref);
1605 if ($pc92_slug_changes && $parent == $main::routeroot) {
1606 $things_del{$call} = $ref unless exists $things_add{$call};
1607 delete $things_add{$call};
1613 # this will only happen if we are slugging changes and
1614 # there are some changes to be sent, it will create an add or a delete
1616 sub gen_pc92_changes
1618 my @add = values %things_add;
1619 my @del = values %things_del;
1620 return (\@add, \@del);
1623 sub clear_pc92_changes
1625 %things_add = %things_del = ();
1626 $last_pc92_slug = $main::systime;
1635 return $_last_pc9x_id;
1640 if (!$_last_time || $_last_time != $main::systime) {
1641 $_last_time = $main::systime;
1643 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1646 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1657 # check that the time is between 0 >= $t < 86400
1658 unless ($t >= 0 && $t < 86400) {
1659 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1663 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1664 my $now = $main::systime - $main::systime_daystart ;
1665 my $diff = abs($now - $t);
1666 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1667 my $c = ref $call ? $call->call : $call;
1668 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1672 my $parent = ref $call ? $call : Route::Node::get($call);
1674 # we only do this for external calls whose routing table
1675 # record come and go. The reference for mycall is permanent
1676 # and not that frequently used, it also never times out, so
1677 # the id on it is completely unreliable. Besides, only commands
1678 # originating on this box will go through this code...
1679 if ($parent->call ne $main::mycall) {
1680 my $lastid = $parent->lastid;
1681 if (defined $lastid) {
1683 # note that this is where we determine whether this pc9x has come in yesterday
1684 # but is still greater (modulo 86400) than the lastid or is simply an old
1685 # duplicate sentence. To determine this we need to do some module 86400
1686 # arithmetic. High numbers mean that this is an old duplicate sentence,
1687 # low numbers that it is a new sentence.
1689 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1690 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1691 # 86378 respectively in the calculation below).
1693 if ($t+86400-$lastid > $pc9x_past_age) {
1694 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1697 } elsif ($t == $lastid) {
1698 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1701 # check that if we have a low number in lastid that yesterday's numbers
1702 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1703 if ($lastid+86400-$t < $pc9x_past_age) {
1704 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1711 $parent = Route::Node->new($call);
1713 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1716 if (isdbg('pc92dedupe')) {
1717 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1718 my $val = $parent->{lastid};
1719 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1720 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1722 $parent->lastid($t);
1727 sub pc92_handle_first_slot
1734 my $oparent = $parent;
1738 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1739 if ($call && $is_node) {
1740 if ($call eq $main::mycall) {
1741 dbg("PCPROT: $call looped back onto \$main::mycall ($main::mycall), ignored") if isdbg('chan');
1744 if ($call eq $main::myalias) {
1745 dbg("PCPROT: $call looped back onto \$main::myalias ($main::myalias), ignored") if isdbg('chan');
1748 # this is only accepted from my "self".
1749 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1750 # locally connected. Local nodes always take precedence. But we remember the lastid
1751 # to try to reduce the number of dupe PC92s for this external node.
1752 if (DXChannel::get($call) && $call ne $self->{call}) {
1753 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1754 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1758 # reparent to external node (note that we must have received a 'C' or 'A' record
1759 # from the true parent node for this external before we get one for the this node
1760 unless ($parent = Route::Node::get($call)) {
1761 if ($is_extnode && $oparent) {
1762 @radd = _add_thingy($oparent, $slot, $self, $hops);
1765 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1769 $parent = check_pc9x_t($call, $t, 92) || return;
1770 $parent->via_pc92(1);
1771 $parent->PC92C_dxchan($self->{call}, $hops);
1774 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1777 $parent->here(Route::here($here));
1778 $parent->version($version || $pc19_version) if $version;
1779 $parent->build($build) if $build;
1780 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1781 return ($parent, @radd);
1784 # DXSpider routing entries
1795 my $pcall = $pc->[1];
1797 my $sort = $pc->[3];
1798 my $hops = $pc->[-1];
1800 # this catches loops of A/Ds
1801 # if (eph_dup($line, $pc9x_dupe_age)) {
1805 if ($pcall eq $main::mycall) {
1806 dbg("PCPROT: looped back, ignored") if isdbg('chan');
1810 if ($pcall eq $main::myalias) {
1811 dbg("PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored") if isdbg('chan');
1815 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
1816 if ($self->{isolate}) {
1817 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
1819 } elsif (!$self->user->wantpc9x) {
1820 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
1823 $self->state('init92');
1824 $self->{do_pc9x} = 1;
1825 dbg("DXPROT: Do pc9x set on $pcall");
1828 unless ($self->{do_pc9x}) {
1829 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1833 # don't create routing entries for D records that don't already exist
1834 # this is what causes all those PC92 loops!
1835 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
1836 my $oparent = $parent;
1838 $parent->do_pc9x(1);
1839 $parent->via_pc92(1);
1841 if ($sort eq 'F' || $sort eq 'R') {
1843 # this is the route finding section
1844 # here is where the consequences of the 'find' command
1847 my $from = $pc->[4];
1848 my $target = $pc->[5];
1854 if ($ref = DXChannel::get($target)) {
1855 $flag = 1; # we are directly connected
1857 $ref = Route::get($target);
1858 $dxchan = $ref->dxchan;
1861 if ($ref && $flag && $dxchan) {
1862 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
1865 } elsif ($sort eq 'R') {
1866 if (my $dxchan = DXChannel::get($from)) {
1867 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
1869 my $ref = Route::get($from);
1871 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
1873 $_->send($line) for @dxchan;
1875 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1878 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1884 } elsif ($sort eq 'K') {
1885 $pc92Kin += length $line;
1887 # remember the last channel we arrived on
1888 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1890 my @ent = _decode_pc92_call($pc->[4]);
1895 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
1896 return unless $parent; # dupe
1898 push @radd, $add if $add;
1900 $parent->version($ent[4]) if $ent[4];
1901 $parent->build($ent[5]) if $ent[5];
1903 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1905 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
1907 $pc92Ain += length $line if $sort eq 'A';
1908 $pc92Cin += length $line if $sort eq 'C';
1909 $pc92Din += length $line if $sort eq 'D';
1911 # remember the last channel we arrived on
1912 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1914 # this is the main route section
1915 # here is where all the routes are created and destroyed
1917 # cope with missing duplicate node calls in the first slot
1918 my $me = $pc->[4] || '';
1919 $me ||= _encode_pc92_call($parent) unless $me ;
1921 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
1925 # look at the first one which will always be a node of some sort
1926 # except in the case of 'A' or 'D' in which the $pcall is used
1927 # otherwise use the node call and update any information
1928 # that needs to be done.
1931 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
1932 return unless $parent; # dupe
1935 push @radd, $add if $add;
1938 # do a pass through removing any references to either mycall
1942 next unless $_ && @$_;
1943 if ($_->[0] eq $main::mycall) {
1944 dbg("PCPROT: $_->[0] refers to me, ignored") if isdbg('chanerr');
1952 push @radd, _add_thingy($parent, $_, $self, $hops);
1954 } elsif ($sort eq 'D') {
1956 push @rdel, _del_thingy($parent, $_, $self);
1958 } elsif ($sort eq 'C') {
1959 my (@nodes, @users);
1961 # we reset obscounts on config records as well as K records
1963 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1966 foreach my $r (@nent) {
1967 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
1970 push @nodes, $r->[0];
1972 push @users, $r->[0];
1975 dbg("PCPROT: pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr');
1979 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
1982 foreach my $r (@nent) {
1985 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
1989 foreach my $r (@$dnodes) {
1990 push @rdel,_del_thingy($parent, [$r, 1], $self);
1992 foreach my $r (@$dusers) {
1993 push @rdel,_del_thingy($parent, [$r, 0], $self);
1996 # remember this last PC92C for rebroadcast on demand
1997 $parent->last_PC92C($line);
1999 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2003 foreach my $r (@rdel) {
2006 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2007 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2009 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2010 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2011 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2012 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2013 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2016 # broadcast it if we get here
2017 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2020 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2021 # might be on two or more nodes at the same time or that there may be more than
2022 # one equal distance neighbour to a node.
2024 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2025 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2026 # each and then combined to give a set of dxchans to send the PC9x record down
2028 sub find_pc9x_routes
2031 my $ref = Route::get($to);
2035 if ($ref->isa('Route::User')) {
2036 my $dxchan = DXChannel::get($to);
2037 push @parent, $to if $dxchan;
2038 push @parent, $ref->parents;
2042 foreach my $p (@parent) {
2044 my @routes = Route::findroutes($p);
2045 foreach my $r (@routes) {
2046 $lasthops = $r->[0] unless defined $lasthops;
2047 if ($r->[0] == $lasthops) {
2048 $cand{$r->[1]->call} = $r->[1];
2054 return values %cand;
2065 # $self->{do_pc9x} ||= 1;
2067 my $pcall = $pc->[1]; # this is now checked earlier
2069 # remember that we are converting PC10->PC93 and self will be $main::me if it
2071 unless ($self->{do_pc9x}) {
2072 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2077 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2079 my $to = uc $pc->[3];
2080 my $from = uc $pc->[4];
2081 my $via = uc $pc->[5];
2082 my $text = $pc->[6];
2083 my $onode = uc $pc->[7];
2084 $onode = $pcall if @$pc <= 8;
2086 # this is catch loops caused by bad software ...
2087 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2091 if (isdbg('progress')) {
2092 my $vs = $via ne '*' ? " via $via" : '';
2093 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2097 # will we allow it at all?
2100 if (@bad = BadWords::check($text)) {
2101 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
2106 # if this is a 'bad spotter' user then ignore it
2108 $nossid =~ s/-\d+$//;
2109 if ($badspotter->in($nossid)) {
2110 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
2114 # ignore PC93 coming in from outside this node with a target of local
2115 if ($to eq 'LOCAL' && $self != $main::me) {
2116 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2120 # if it is routeable then then treat it like a talk
2121 my $ref = Route::get($to);
2125 # convert to PC10 or local talks where appropriate
2126 # PC93 capable nodes of the same hop count all get a copy
2127 # if there is a PC10 node then it will get a copy and that
2128 # will be it. Hopefully such a node will not figure highly
2129 # in the route list, unless it is local, 'cos it don't issue PC92s!
2130 # note that both local and PC93s at the same time are possible if the
2131 # user on more than one node.
2132 my @routes = find_pc9x_routes($to);
2134 foreach $dxchan (@routes) {
2135 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2136 if ($dxchan->{do_pc9x}) {
2137 $dxchan->send($line);
2139 $dxchan->talk($from, $to, $via, $text, $onode);
2142 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2147 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2149 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2150 my $wx = $to eq 'WX' ? '1' : '0';
2151 my $local = $via eq 'LOCAL' ? '*' : $via;
2153 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2154 return if $via eq 'LOCAL';
2155 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2156 # chat messages really only locally connected users
2157 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2160 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2161 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2164 # if get here then rebroadcast the thing with its Hop count decremented (if
2165 # there is one). If it has a hop count and it decrements to zero then don't
2168 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2180 unless (eph_dup($line)) {
2182 my $pcall = $pc->[1];
2183 unless (is_callsign($pcall)) {
2184 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2188 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2189 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2191 unless ($self->{isolate}) {
2192 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me