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*5; # slug any changes going outward for this long
53 $last_pc92_slug = 0; # 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 $pc92filterdef = bless ([
60 # tag, sort, field, priv, special parser
69 # incoming talk commands
78 # this is to catch loops caused by bad software ...
79 if (eph_dup($line, $pc10_dupe_age)) {
83 # will we allow it at all?
86 if (@bad = BadWords::check($pc->[3])) {
87 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
92 # is it for me or one of mine?
93 my ($from, $to, $via, $call, $dxchan);
95 if ($pc->[5] gt ' ') {
102 # if this is a 'nodx' node then ignore it
103 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
104 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
108 # if this is a 'bad spotter' user then ignore it
110 $nossid =~ s/-\d+$//;
111 if ($badspotter->in($nossid)) {
112 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
116 # if we are converting announces to talk is it a dup?
118 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
119 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
124 # convert this to a PC93, coming from mycall with origin set and process it as such
125 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
137 # route 'foreign' pc26s
139 if ($pc->[7] ne $main::mycall) {
140 $self->route($pc->[7], $line);
145 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
147 # is the spotted callsign blank? This should really be trapped earlier but it
148 # could break other protocol sentences. Also check for lower case characters.
149 if ($pc->[2] =~ /^\s*$/) {
150 dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
153 if ($pc->[2] =~ /[a-z]/) {
154 dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
159 # if this is a 'nodx' node then ignore it
160 if ($badnode->in($pc->[7])) {
161 dbg("PCPROT: Bad Node $pc->[7], dropped") if isdbg('chanerr');
165 # 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
166 my $nossid = $pc->[6];
167 $nossid =~ s/-\d+$//;
168 if ($badspotter->in($nossid)) {
169 dbg("PCPROT: Bad Spotter $pc->[6], dropped") if isdbg('chanerr');
172 # unless (is_ipaddr($pc->[8]) || DXUser::get_current($pc->[6])) {
173 # dbg("PCPROT: Unknown Spotter $pc->[6], dropped") if isdbg('chanerr');
177 # convert the date to a unix date
178 my $d = cltounix($pc->[3], $pc->[4]);
179 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
180 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
181 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n") if isdbg('chanerr');
186 if ($baddx->in($pc->[2]) || BadWords::check($pc->[2])) {
187 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
192 $pc->[5] =~ s/^\s+//; # take any leading blanks off
193 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
194 if ($pc->[2] =~ /BUST\w*$/) {
195 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
200 if (@bad = BadWords::check($pc->[5])) {
201 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
206 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
207 # global spot filtering on INPUT
208 if ($self->{inspotsfilter}) {
209 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
211 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
216 # this goes after the input filtering, but before the add
217 # so that if it is input filtered, it isn't added to the dup
218 # list. This allows it to come in from a "legitimate" source
219 if (Spot::dup(@spot[0..4,5])) {
220 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
225 $spot[14] =~ s/^::ffff:// if exists $spot[14]; # remove rubbish ipv4 addresses dressed up as ipv6
228 # create a spotter if doesn't exit and there is an ip available and in anycase remember the IP address
229 my $user = DXUser::get_current($spot[4]);
230 $user = DXUser->new($spot[4]) unless $user;
231 my $r = Route::get($spot[4]);
232 my $ip = $spot[14] if exists $spot[14];
235 $ip =~ s/[\(\)\*]+//g; # strip these off :-)
236 $user->ip($spot[7], $ip);
238 $r->ip($spot[7], $ip) if $r;
240 $ip ||= $r->ip($spot[7]) if $r;
241 $ip ||= $user->ip($spot[7]);
242 $implied = '*' if $ip;
245 if (isdbg('progress')) {
246 my $sip = $ip ? sprintf "($ip$implied)" : '';
247 my $s = sprintf "SPOT: $spot[1] on $spot[0] \@ %s by $spot[4]$sip\@$spot[7]", cldatetime($spot[2]);
248 $s .= " '$spot[3]'" if $spot[3];
253 # @spot at this point contains:-
254 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
255 # then spotted itu, spotted cq, spotters itu, spotters cq
256 # you should be able to route on any of these
260 # fix up qra locators of known users
262 my $qra = $user->qra;
263 unless ($qra && is_qra($qra)) {
264 my $lat = $user->lat;
265 my $long = $user->long;
266 if (defined $lat && defined $long) {
267 $user->qra(DXBearing::lltoqra($lat, $long));
272 # send a remote command to a distant cluster if it is visible and there is no
273 # qra locator and we havn't done it for a month.
275 unless ($user->qra) {
277 my $to = $user->homenode;
278 my $last = $user->lastoper || 0;
279 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
280 my $cmd = "forward/opernam $spot[4]";
281 # send the rcmd but we aren't interested in the replies...
282 my $dxchan = $node->dxchan;
283 if ($dxchan && $dxchan->is_clx) {
284 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
286 route(undef, $to, pc34($main::mycall, $to, $cmd));
288 if ($to ne $pc->[7]) {
290 $node = Route::Node::get($to);
292 $dxchan = $node->dxchan;
293 if ($dxchan && $dxchan->is_clx) {
294 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
296 route(undef, $to, pc34($main::mycall, $to, $cmd));
300 $user->lastoper($main::systime);
307 if (defined &Local::spot) {
310 $r = Local::spot($self, @spot);
315 # DON'T be silly and send on PC26s!
316 return if $pcno == 26;
318 # send out the filtered spots
319 send_dx_spot($self, $line, @spot) if @spot;
331 # announce duplicate checking
332 $pc->[3] =~ s/^\s+//; # remove leading blanks
336 if (@bad = BadWords::check($pc->[3])) {
337 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
342 # if this is a 'nodx' node then ignore it
343 if ($badnode->in($pc->[5])) {
344 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
348 # if this is a 'bad spotter' user then ignore it
349 my $nossid = $pc->[1];
350 $nossid =~ s/-\d+$//;
351 if ($badspotter->in($nossid)) {
352 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
356 # ignore PC12s from origins that use PCxx protocol
357 my $oref = Route::get($origin);
358 if ($oref->do_pc9x) {
359 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
365 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
366 $self->send_chat(0, $line, @$pc[1..6]);
367 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
369 # ignore something that looks like a chat line coming in with sysop
370 # flag - this is a kludge...
371 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
372 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
376 # here's a bit of fun, convert incoming ann with a callsign in the first word
377 # or one saying 'to <call>' to a talk if we can route to the recipient
379 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
381 my $ref = Route::get($call);
383 $dxchan = $ref->dxchan;
384 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
391 $self->send_announce(0, $line, @$pc[1..6]);
393 $self->route($pc->[2], $line);
397 if (defined &Local::ann) {
400 $r = Local::ann($self, $line, @$pc[1..6]);
414 if (eph_dup($line, $eph_pc15_restime)) {
417 unless ($self->{isolate}) {
418 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
434 my $ncall = $pc->[1];
435 my $newline = "PC16^";
437 # dos I want users from this channel?
438 unless ($self->user->wantpc16) {
439 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
444 if ($ncall eq $main::mycall) {
445 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
450 $h = 1 if DXChannel::get($ncall);
451 if ($h && $self->{call} ne $ncall) {
452 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
456 if (eph_dup($line)) {
460 # isolate now means only accept stuff from this call only
461 if ($self->{isolate} && $ncall ne $self->{call}) {
462 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
466 my $parent = Route::Node::get($ncall);
469 $dxchan = $parent->dxchan;
470 if ($dxchan && $dxchan ne $self) {
471 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
475 # input filter if required
476 return unless $self->in_filter_route($parent);
478 $parent = Route::Node->new($ncall);
482 if ($parent->via_pc92) {
483 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
490 for ($i = 2; $i < $#$pc; $i++) {
491 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
492 next unless $call && $conf && defined $here && is_callsign($call);
493 next if $call eq $main::mycall;
495 eph_del_regex("^PC17\\^$call\\^$ncall");
497 $conf = $conf eq '*';
499 # reject this if we think it is a node already
500 my $r = Route::Node::get($call);
501 my $u = DXUser::get_current($call) unless $r;
502 if ($r || ($u && $u->is_node)) {
503 dbg("PCPROT: $call is a node") if isdbg('chanerr');
507 $r = Route::User::get($call);
508 my $flags = Route::here($here)|Route::conf($conf);
511 my $au = $r->addparent($parent);
512 if ($r->flags != $flags) {
516 push @rout, $r if $h && $au;
518 my @ans = $parent->add_user($call, $flags);
519 push @rout, @ans if $h && @ans;
522 # add this station to the user database, if required
523 my $user = DXUser::get_current($ncall);
524 $user = DXUser->new($call) unless $user;
525 $user->homenode($parent->call) if !$user->homenode;
526 $user->node($parent->call);
527 $user->lastin($main::systime) unless DXChannel::get($call);
530 # send info to all logged in thingies
531 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
532 $self->tell_buddies('loginb', $call, $ncall);
535 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
536 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
550 my $ncall = $pc->[2];
551 my $ucall = $pc->[1];
553 eph_del_regex("^PC16\\^$ncall.*$ucall");
555 # do I want users from this channel?
556 unless ($self->user->wantpc16) {
557 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
561 if ($ncall eq $main::mycall) {
562 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
566 # isolate now means only accept stuff from this call only
567 if ($self->{isolate} && $ncall ne $self->{call}) {
568 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
572 my $uref = Route::User::get($ucall);
574 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
577 my $parent = Route::Node::get($ncall);
579 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
583 $dxchan = DXChannel::get($ncall);
584 if ($dxchan && $dxchan ne $self) {
585 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
590 if ($parent->via_pc92) {
591 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
596 if (DXChannel::get($ucall)) {
597 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
601 # input filter if required and then remove user if present
602 # return unless $self->in_filter_route($parent);
603 $parent->del_user($uref);
605 # send info to all logged in thingies
606 my $user = DXUser::get_current($ncall);
607 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
608 $self->tell_buddies('logoutb', $ucall, $ncall);
610 if (eph_dup($line)) {
614 $self->route_pc17($origin, $line, $parent, $uref);
615 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
627 $self->state('init');
629 my $parent = Route::Node::get($self->{call});
631 # record the type and version offered
632 if (my ($version) = $pc->[1] =~ /DXSpider Version: (\d+\.\d+)/) {
633 $self->{version} = 53 + $version;
634 $self->user->version(53 + $version);
635 $parent->version(0 + $version);
636 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
637 $self->{build} = 0 + $build;
638 $self->user->build(0 + $build);
639 $parent->build(0 + $build);
640 dbg("DXSpider version $version build $build");
641 unless ($self->is_spider) {
642 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
643 $self->user->sort('S');
647 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
649 dbg("Unknown software");
650 $self->version(50.0);
651 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
652 $self->user->version($self->version);
655 if ($pc->[1] =~ /\bpc9x/) {
656 if ($self->{isolate}) {
657 dbg("pc9x recognised, but $self->{call} is isolated, using old protocol");
658 } elsif (!$self->user->wantpc9x) {
659 dbg("pc9x explicitly switched off on $self->{call}, using old protocol");
661 $self->{do_pc9x} = 1;
662 dbg("Do px9x set on $self->{call}");
666 # first clear out any nodes on this dxchannel
667 my @rout = $parent->del_nodes;
668 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
669 $self->send_local_config();
677 # add this station to the user database, if required (don't remove SSID from nodes)
678 my $user = DXUser::get_current($call);
680 $user = DXUser->new($call);
681 $user->priv(1); # I have relented and defaulted nodes
683 $user->homenode($call);
690 # incoming cluster list
700 my $newline = "PC19^";
703 my (@rout, @pc92out);
705 # first get the INTERFACE node
706 my $parent = Route::Node::get($self->{call});
708 dbg("PCPROT: my parent $self->{call} has disappeared");
717 # We are making a major change from now on. We are only going to accept
718 # PC19s from directly connected nodes. This means that we are probably
719 # going to throw away most of the data that we are being sent.
721 # The justification for this is that most of it is wrong or out of date
724 # From now on we are only going to believe PC92 data and locally connected
727 for ($i = 1; $i < $#$pc-1; $i += 4) {
728 my $here = $pc->[$i];
729 my $call = uc $pc->[$i+1];
730 my $conf = $pc->[$i+2];
731 my $ver = $pc->[$i+3];
732 next unless defined $here && defined $conf && is_callsign($call);
734 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
736 # check for sane parameters
737 # $ver = 5000 if $ver eq '0000';
738 next unless $ver && $ver =~ /^\d+$/;
739 next if $ver < 5000; # only works with version 5 software
740 next if length $call < 3; # min 3 letter callsigns
741 next if $call eq $main::mycall || $call eq $main::myalias;
743 # check that this PC19 isn't trying to alter the wrong dxchan
745 my $dxchan = DXChannel::get($call);
747 if ($dxchan == $self) {
750 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
755 # isolate now means only accept stuff from this call only
756 if ($self->{isolate} && $call ne $self->{call}) {
757 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
761 my $user = check_add_node($call);
763 # if (eph_dup($genline)) {
764 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
770 if ($parent->via_pc92) {
771 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
776 my $r = Route::Node::get($call);
777 my $flags = Route::here($here)|Route::conf($conf);
779 # modify the routing table if it is in it, otherwise store it in the pc19list for now
782 if ($call ne $parent->call) {
783 if ($self->in_filter_route($r)) {
784 $ar = $parent->add($call, $ver, $flags);
785 # push @rout, $ar if $ar;
790 if ($r->version ne $ver || $r->flags != $flags) {
796 if ($call eq $self->{call} || $user->wantroutepc19) {
797 my $new = Route->new($call); # throw away
798 if ($self->in_filter_route($new)) {
799 my $ar = $parent->add($call, $ver, $flags);
800 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
801 push @rout, $ar if $ar;
802 push @pc92out, $r if $h;
809 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
810 my $mref = DXMsg::get_busy($call);
811 $mref->stop_msg($call) if $mref;
813 $user->lastin($main::systime) unless DXChannel::get($call);
817 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
818 # but remember there will only be one (pair) these because any extras will be
821 # $self->route_pc21($self->{call}, $line, @rout);
822 $self->route_pc19($self->{call}, $line, @rout);
824 if (@pc92out && !$pc92_slug_changes) {
825 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
829 # send local configuration
838 if ($self->{do_pc9x} && $self->{state} ne 'init92') {
839 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
840 $self->{do_pc9x} = 0;
842 $self->send_local_config;
844 $self->state('normal');
845 $self->{lastping} = 0;
846 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
849 # delete a cluster from the list
851 # This should never occur for directly connected nodes.
861 my $call = uc $pc->[1];
863 eph_del_regex("^PC1[679].*$call");
865 # if I get a PC21 from the same callsign as self then ignore it
866 if ($call eq $self->{call}) {
867 dbg("PCPROT: self referencing PC21 from $self->{call}");
871 # for the above reason and also because of the check for PC21s coming
872 # in for self->call from outside being ignored further down
873 # we don't need any isolation code here, because we will never
874 # act on a PC21 with self->call in it.
876 my $parent = Route::Node::get($self->{call});
878 dbg("PCPROT: my parent $self->{call} has disappeared");
885 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
886 my $node = Route::Node::get($call);
889 if ($node->via_pc92) {
890 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
894 my $dxchan = DXChannel::get($call);
895 if ($dxchan && $dxchan != $self) {
896 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
901 return unless $self->in_filter_route($node);
903 # routing objects, force a PC21 if it is local
904 push @rout, $node->del($parent);
905 push @rout, $call if $dxchan && @rout == 0;
908 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
912 if (eph_dup($line)) {
917 $self->route_pc21($origin, $line, @rout);
918 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
931 if ($self->{do_pc9x}) {
932 if ($self->{state} ne 'init92') {
933 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
934 $self->{do_pc9x} = 0;
937 $self->{lastping} = 0;
938 $self->state('normal');
939 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
951 # route foreign' pc27s
953 if ($pc->[8] ne $main::mycall) {
954 $self->route($pc->[8], $line);
961 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
962 my $sfi = unpad($pc->[3]);
963 my $k = unpad($pc->[4]);
964 my $i = unpad($pc->[5]);
965 my ($r) = $pc->[6] =~ /R=(\d+)/;
967 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
968 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
972 # global wwv filtering on INPUT
973 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
974 if ($self->{inwwvfilter}) {
975 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
977 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
981 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
982 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
983 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
987 # note this only takes the first one it gets
988 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
989 dbg("WWV: $d $pc->[2], sfi:$sfi k:$k info:$i $pc->[6] $pc->[7] $pc->[8] $r") if isdbg('progress');
991 if (defined &Local::wwv) {
994 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
999 # DON'T be silly and send on PC27s!
1000 return if $pcno == 27;
1002 # broadcast to the eager world
1003 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1015 my $call = uc $pc->[1];
1017 $nref = Route::Node::get($call);
1018 $uref = Route::User::get($call);
1019 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1021 if (eph_dup($line)) {
1025 $nref->here($pc->[2]) if $nref;
1026 $uref->here($pc->[2]) if $uref;
1027 my $ref = $nref || $uref;
1028 return unless $self->in_filter_route($ref);
1030 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1042 if ($pc->[1] ne $main::mycall) {
1043 $self->route($pc->[1], $line);
1046 if ($pc->[2] eq $main::mycall) {
1047 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1051 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1055 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1058 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1064 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1067 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1072 sub handle_26 {goto &handle_11}
1073 sub handle_27 {goto &handle_23}
1075 # mail/file handling
1084 if ($pc->[1] eq $main::mycall) {
1086 my $sub = "DXMsg::handle_$pcno";
1089 $self->route($pc->[1], $line) unless $self->is_clx;
1093 sub handle_29 {goto &handle_28}
1094 sub handle_30 {goto &handle_28}
1095 sub handle_31 {goto &handle_28}
1096 sub handle_32 {goto &handle_28}
1097 sub handle_33 {goto &handle_28}
1107 if (eph_dup($line, $eph_pc34_restime)) {
1110 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1114 # remote command replies
1123 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1124 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1127 sub handle_36 {goto &handle_34}
1138 if ($pc->[1] eq $main::mycall) {
1140 my $sub = "DXDb::handle_$pcno";
1143 $self->route($pc->[1], $line) unless $self->is_clx;
1147 # node connected list from neighbour
1157 # incoming disconnect
1166 if ($pc->[1] eq $self->{call}) {
1167 $self->disconnect(1);
1169 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1173 sub handle_40 {goto &handle_28}
1184 my $call = $pc->[1];
1185 my $sort = $pc->[2];
1188 my $l = "PC41^$call^$sort";
1189 if (eph_dup($l, $eph_info_restime)) {
1193 # input filter if required
1194 # my $ref = Route::get($call) || Route->new($call);
1195 # return unless $self->in_filter_route($ref);
1197 if ($val eq $sort || $val =~ /^\s*$/) {
1198 dbg('PCPROT: invalid value') if isdbg('chanerr');
1202 if ($call eq $main::mycall || $call eq $main::myalias) {
1203 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1206 my $chan = DXChannel::get($call);
1208 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1212 # add this station to the user database, if required
1213 my $user = DXUser::get_current($call);
1214 $user = DXUser->new($call) unless $user;
1217 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1218 dbg("PCPROT: invalid name") if isdbg('chanerr');
1222 } elsif ($sort == 2) {
1224 } elsif ($sort == 3) {
1225 if (is_latlong($val)) {
1226 my ($lat, $long) = DXBearing::stoll($val);
1227 $user->lat($lat) if $lat;
1228 $user->long($long) if $long;
1229 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1231 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1234 } elsif ($sort == 4) {
1235 $user->homenode($val);
1236 } elsif ($sort == 5) {
1237 if (is_qra(uc $val)) {
1238 my ($lat, $long) = DXBearing::qratoll(uc $val);
1239 $user->lat($lat) if $lat && !$user->lat;
1240 $user->long($long) if $long && !$user->long;
1241 $user->qra(uc $val);
1243 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1247 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1250 unless ($self->{isolate}) {
1251 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1254 # perhaps this IS what we want after all
1255 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1258 sub handle_42 {goto &handle_28}
1262 sub handle_44 {goto &handle_37}
1263 sub handle_45 {goto &handle_37}
1264 sub handle_46 {goto &handle_37}
1265 sub handle_47 {goto &handle_37}
1266 sub handle_48 {goto &handle_37}
1268 # message and database
1277 if (eph_dup($line)) {
1281 if ($pc->[1] eq $main::mycall) {
1282 DXMsg::handle_49($self, @$pc);
1284 $self->route($pc->[1], $line) unless $self->is_clx;
1288 # keep alive/user list
1297 return if (eph_dup($line));
1299 my $call = $pc->[1];
1301 my $node = Route::Node::get($call);
1303 return unless $node->call eq $self->{call};
1304 $node->usercount($pc->[2]) unless $node->users;
1306 $node->PC92C_dxchan($self->call, $pc->[-1]);
1308 # input filter if required
1309 # return unless $self->in_filter_route($node);
1311 unless ($self->{isolate}) {
1312 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1314 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1318 # incoming ping requests/answers
1328 my $from = $pc->[2];
1329 my $flag = $pc->[3];
1331 if ($to eq $main::myalias) {
1332 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1337 if ($to eq $main::mycall) {
1339 $self->send(pc51($from, $to, '0'));
1341 DXXml::Ping::handle_ping_reply($self, $from);
1344 if (eph_dup($line)) {
1347 # route down an appropriate thingy
1348 $self->route($to, $line);
1352 sub handle_61 { goto &handle_11; }
1354 # dunno but route it
1363 my $call = $pc->[1];
1364 if ($call ne $main::mycall) {
1365 $self->route($call, $line);
1378 my $call = $pc->[1];
1381 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1382 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1383 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1386 $pc = [ map { unpad($_) } @$pc ];
1388 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1392 my $wcy = WCY::update($d, @$pc[2..12]);
1393 dbg("WCY: " . join ', ', @$pc[2..12]) if isdbg('progress');
1395 if (defined &Local::wcy) {
1398 $rep = Local::wcy($self, @$pc[1..12]);
1403 # broadcast to the eager world
1404 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1407 # remote commands (incoming)
1416 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1419 # remote command replies
1428 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1431 # decode a pc92 call: flag call : version : build
1432 sub _decode_pc92_call
1435 my @part = split /:/, $icall;
1436 my ($flag, $call) = unpack "A A*", $part[0];
1437 unless (defined $flag && $flag ge '0' && $flag le '7') {
1438 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1441 unless ($call && is_callsign($call)) {
1442 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1445 my $is_node = $flag & 4;
1446 my $is_extnode = $flag & 2;
1447 my $here = $flag & 1;
1449 $ip ||= $part[1] if $part[1] && ($part[1] =~ /^(?:\d+\.)+/ || $part[1] =~ /^(?:(?:[abcdef\d]+)?,)+/);
1450 $ip =~ s/,/:/g if $ip;
1451 return ($call, $is_node, $is_extnode, $here, $part[1], $part[2], $ip);
1454 # decode a pc92 call: flag call : version : build
1455 sub _encode_pc92_call
1459 # plain call or value
1460 return $ref unless ref $ref;
1462 my $ext = shift || 0;
1464 my $call = $ref->call;
1466 $flag |= $ref->here ? 1 : 0;
1467 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1469 my $dxchan = DXChannel::get($call);
1470 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1471 if (($ext & 1) && $ref->version) {
1472 my $version = $ref->version || 1.0;
1473 $version = $version * 100 + 5300 if $version < 50;
1474 $extra .= ":" . $version;
1477 if (($ext & 2) && $ref->ip) {
1480 $extra .= ':' . $ip;
1482 return "$flag$call$extra";
1495 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1499 my $ncall = $parent->call;
1500 my $user = DXUser::get_current($call);
1502 my $newuser = !$user;
1503 $user = DXUser->new($call) unless $user;
1504 $user->homenode($parent->call) unless $user->homenode;
1505 $user->node($parent->call);
1506 $user->lastin($main::systime) unless DXChannel::get($ncall);
1508 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1509 @rout = $parent->add($call, $version, Route::here($here), $ip);
1510 $r = Route::Node::get($call);
1511 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1513 $user->sort('S') unless $user->sort;
1514 $user->priv(1) unless exists $user->{priv};
1515 $user->lockout(1) unless exists $user->{lookout} || $main::me->call eq $call || DXChannel::get($call) || Msg::get($call);
1518 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1519 @rout = $parent->add_user($call, Route::here($here), $ip);
1520 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1521 $r = Route::User::get($call);
1523 $user->sort('U') unless $user->sort;
1526 $ip ||= $user->ip($ncall);
1528 $ip =~ s/^::ffff://; # remove ipv6 stuff from the front of an ipv4 address
1529 $user->ip($ncall, $ip);
1530 $r->ip($ncall, $ip);
1531 my $s = "PC92A $call -> $ip on $ncall";
1533 dbg($s) if isdbg('routelow');
1537 # create a node user if required
1539 if ($pc92_slug_changes && $parent == $main::routeroot) {
1540 $things_add{$call} = Route::get($call);
1541 delete $things_del{$call};
1552 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1557 $ref = Route::Node::get($call);
1558 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1559 @rout = $ref->del($parent) if $ref;
1561 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1562 $ref = Route::User::get($call);
1564 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1565 @rout = $parent->del_user($ref);
1568 if ($pc92_slug_changes && $parent == $main::routeroot) {
1569 $things_del{$call} = $ref unless exists $things_add{$call};
1570 delete $things_add{$call};
1576 # this will only happen if we are slugging changes and
1577 # there are some changes to be sent, it will create an add or a delete
1579 sub gen_pc92_changes
1581 my @add = values %things_add;
1582 my @del = values %things_del;
1583 return (\@add, \@del);
1586 sub clear_pc92_changes
1588 %things_add = %things_del = ();
1589 $last_pc92_slug = $main::systime;
1598 return $_last_pc9x_id;
1603 if (!$_last_time || $_last_time != $main::systime) {
1604 $_last_time = $main::systime;
1606 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1609 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1620 # check that the time is between 0 >= $t < 86400
1621 unless ($t >= 0 && $t < 86400) {
1622 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1626 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1627 my $now = $main::systime - $main::systime_daystart ;
1628 my $diff = abs($now - $t);
1629 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1630 my $c = ref $call ? $call->call : $call;
1631 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1635 my $parent = ref $call ? $call : Route::Node::get($call);
1637 # we only do this for external calls whose routing table
1638 # record come and go. The reference for mycall is permanent
1639 # and not that frequently used, it also never times out, so
1640 # the id on it is completely unreliable. Besides, only commands
1641 # originating on this box will go through this code...
1642 if ($parent->call ne $main::mycall) {
1643 my $lastid = $parent->lastid;
1644 if (defined $lastid) {
1646 # note that this is where we determine whether this pc9x has come in yesterday
1647 # but is still greater (modulo 86400) than the lastid or is simply an old
1648 # duplicate sentence. To determine this we need to do some module 86400
1649 # arithmetic. High numbers mean that this is an old duplicate sentence,
1650 # low numbers that it is a new sentence.
1652 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1653 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1654 # 86378 respectively in the calculation below).
1656 if ($t+86400-$lastid > $pc9x_past_age) {
1657 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1660 } elsif ($t == $lastid) {
1661 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1664 # check that if we have a low number in lastid that yesterday's numbers
1665 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1666 if ($lastid+86400-$t < $pc9x_past_age) {
1667 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1674 $parent = Route::Node->new($call);
1676 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1679 if (isdbg('pc92dedupe')) {
1680 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1681 my $val = $parent->{lastid};
1682 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1683 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1685 $parent->lastid($t);
1690 sub pc92_handle_first_slot
1697 my $oparent = $parent;
1701 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1702 if ($call && $is_node) {
1703 if ($call eq $main::mycall) {
1704 dbg("PCPROT: $call looped back onto \$main::mycall ($main::mycall), ignored") if isdbg('chan');
1707 if ($call eq $main::myalias) {
1708 dbg("PCPROT: $call looped back onto \$main::myalias ($main::myalias), ignored") if isdbg('chan');
1711 # this is only accepted from my "self".
1712 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1713 # locally connected. Local nodes always take precedence. But we remember the lastid
1714 # to try to reduce the number of dupe PC92s for this external node.
1715 if (DXChannel::get($call) && $call ne $self->{call}) {
1716 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1717 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1721 # reparent to external node (note that we must have received a 'C' or 'A' record
1722 # from the true parent node for this external before we get one for the this node
1723 unless ($parent = Route::Node::get($call)) {
1724 if ($is_extnode && $oparent) {
1725 @radd = _add_thingy($oparent, $slot, $self, $hops);
1728 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1732 $parent = check_pc9x_t($call, $t, 92) || return;
1733 $parent->via_pc92(1);
1734 $parent->PC92C_dxchan($self->{call}, $hops);
1737 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1740 $parent->here(Route::here($here));
1741 $parent->version($version || $pc19_version) if $version;
1742 $parent->build($build) if $build;
1743 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1744 return ($parent, @radd);
1747 # DXSpider routing entries
1758 my $pcall = $pc->[1];
1760 my $sort = $pc->[3];
1761 my $hops = $pc->[-1];
1763 # this catches loops of A/Ds
1764 # if (eph_dup($line, $pc9x_dupe_age)) {
1768 if ($pcall eq $main::mycall) {
1769 dbg("PCPROT: looped back, ignored") if isdbg('chan');
1773 if ($pcall eq $main::myalias) {
1774 dbg("PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored") if isdbg('chan');
1778 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
1779 if ($self->{isolate}) {
1780 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
1782 } elsif (!$self->user->wantpc9x) {
1783 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
1786 $self->state('init92');
1787 $self->{do_pc9x} = 1;
1788 dbg("DXPROT: Do pc9x set on $pcall");
1791 unless ($self->{do_pc9x}) {
1792 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1796 # don't create routing entries for D records that don't already exist
1797 # this is what causes all those PC92 loops!
1798 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
1799 my $oparent = $parent;
1801 $parent->do_pc9x(1);
1802 $parent->via_pc92(1);
1804 if ($sort eq 'F' || $sort eq 'R') {
1806 # this is the route finding section
1807 # here is where the consequences of the 'find' command
1810 my $from = $pc->[4];
1811 my $target = $pc->[5];
1817 if ($ref = DXChannel::get($target)) {
1818 $flag = 1; # we are directly connected
1820 $ref = Route::get($target);
1821 $dxchan = $ref->dxchan;
1824 if ($ref && $flag && $dxchan) {
1825 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
1828 } elsif ($sort eq 'R') {
1829 if (my $dxchan = DXChannel::get($from)) {
1830 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
1832 my $ref = Route::get($from);
1834 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
1836 $_->send($line) for @dxchan;
1838 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1841 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1847 } elsif ($sort eq 'K') {
1848 $pc92Kin += length $line;
1850 # remember the last channel we arrived on
1851 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1853 my @ent = _decode_pc92_call($pc->[4]);
1858 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
1859 return unless $parent; # dupe
1861 push @radd, $add if $add;
1863 $parent->version($ent[4]) if $ent[4];
1864 $parent->build($ent[5]) if $ent[5];
1866 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1868 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
1870 $pc92Ain += length $line if $sort eq 'A';
1871 $pc92Cin += length $line if $sort eq 'C';
1872 $pc92Din += length $line if $sort eq 'D';
1874 # remember the last channel we arrived on
1875 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1877 # this is the main route section
1878 # here is where all the routes are created and destroyed
1880 # cope with missing duplicate node calls in the first slot
1881 my $me = $pc->[4] || '';
1882 $me ||= _encode_pc92_call($parent) unless $me ;
1884 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
1888 # look at the first one which will always be a node of some sort
1889 # except in the case of 'A' or 'D' in which the $pcall is used
1890 # otherwise use the node call and update any information
1891 # that needs to be done.
1894 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
1895 return unless $parent; # dupe
1898 push @radd, $add if $add;
1901 # do a pass through removing any references to either mycall
1905 next unless $_ && @$_;
1906 if ($_->[0] eq $main::mycall) {
1907 dbg("PCPROT: $_->[0] refers to me, ignored") if isdbg('chanerr');
1915 push @radd, _add_thingy($parent, $_, $self, $hops);
1917 } elsif ($sort eq 'D') {
1919 push @rdel, _del_thingy($parent, $_, $self);
1921 } elsif ($sort eq 'C') {
1922 my (@nodes, @users);
1924 # we reset obscounts on config records as well as K records
1926 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1929 foreach my $r (@nent) {
1930 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
1933 push @nodes, $r->[0];
1935 push @users, $r->[0];
1938 dbg("PCPROT: pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr');
1942 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
1945 foreach my $r (@nent) {
1948 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
1952 foreach my $r (@$dnodes) {
1953 push @rdel,_del_thingy($parent, [$r, 1], $self);
1955 foreach my $r (@$dusers) {
1956 push @rdel,_del_thingy($parent, [$r, 0], $self);
1959 # remember this last PC92C for rebroadcast on demand
1960 $parent->last_PC92C($line);
1962 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
1966 foreach my $r (@rdel) {
1969 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
1970 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
1972 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
1973 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
1974 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
1975 $self->route_pc19($pcall, undef, @pc19) if @pc19;
1976 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
1979 # broadcast it if we get here
1980 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
1983 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
1984 # might be on two or more nodes at the same time or that there may be more than
1985 # one equal distance neighbour to a node.
1987 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
1988 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
1989 # each and then combined to give a set of dxchans to send the PC9x record down
1991 sub find_pc9x_routes
1994 my $ref = Route::get($to);
1998 if ($ref->isa('Route::User')) {
1999 my $dxchan = DXChannel::get($to);
2000 push @parent, $to if $dxchan;
2001 push @parent, $ref->parents;
2005 foreach my $p (@parent) {
2007 my @routes = Route::findroutes($p);
2008 foreach my $r (@routes) {
2009 $lasthops = $r->[0] unless defined $lasthops;
2010 if ($r->[0] == $lasthops) {
2011 $cand{$r->[1]->call} = $r->[1];
2017 return values %cand;
2028 # $self->{do_pc9x} ||= 1;
2030 my $pcall = $pc->[1]; # this is now checked earlier
2032 # remember that we are converting PC10->PC93 and self will be $main::me if it
2034 unless ($self->{do_pc9x}) {
2035 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2040 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2042 my $to = uc $pc->[3];
2043 my $from = uc $pc->[4];
2044 my $via = uc $pc->[5];
2045 my $text = $pc->[6];
2046 my $onode = uc $pc->[7];
2047 $onode = $pcall if @$pc <= 8;
2049 # this is catch loops caused by bad software ...
2050 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2054 if (isdbg('progress')) {
2055 my $vs = $via ne '*' ? " via $via" : '';
2056 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text'";
2060 # will we allow it at all?
2063 if (@bad = BadWords::check($text)) {
2064 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
2069 # if this is a 'bad spotter' user then ignore it
2071 $nossid =~ s/-\d+$//;
2072 if ($badspotter->in($nossid)) {
2073 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
2077 # ignore PC93 coming in from outside this node with a target of local
2078 if ($to eq 'LOCAL' && $self != $main::me) {
2079 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2083 # if it is routeable then then treat it like a talk
2084 my $ref = Route::get($to);
2088 # convert to PC10 or local talks where appropriate
2089 # PC93 capable nodes of the same hop count all get a copy
2090 # if there is a PC10 node then it will get a copy and that
2091 # will be it. Hopefully such a node will not figure highly
2092 # in the route list, unless it is local, 'cos it don't issue PC92s!
2093 # note that both local and PC93s at the same time are possible if the
2094 # user on more than one node.
2095 my @routes = find_pc9x_routes($to);
2097 foreach $dxchan (@routes) {
2098 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2099 if ($dxchan->{do_pc9x}) {
2100 $dxchan->send($line);
2102 $dxchan->talk($from, $to, $via, $text, $onode);
2105 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2110 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2112 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2113 my $wx = $to eq 'WX' ? '1' : '0';
2114 my $local = $via eq 'LOCAL' ? '*' : $via;
2116 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2117 return if $via eq 'LOCAL';
2118 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2119 # chat messages really only locally connected users
2120 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2123 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2124 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2127 # if get here then rebroadcast the thing with its Hop count decremented (if
2128 # there is one). If it has a hop count and it decrements to zero then don't
2131 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2143 unless (eph_dup($line)) {
2145 my $pcall = $pc->[1];
2146 unless (is_callsign($pcall)) {
2147 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2151 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2152 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2154 unless ($self->{isolate}) {
2155 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me