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 @checklists
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
47 $pc92filterdef $senderverify
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*1; # 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.
60 $pc92filterdef = bless ([
61 # tag, sort, field, priv, special parser
70 # this is a place to park an incoming PC11 in the sure and certain hope that
71 # a PC61 will be along soon. This has the side benefit that it will delay a
72 # a PC11 for one second - assuming that it is not removed by a PC61 version
74 # incoming talk commands
83 # this is to catch loops caused by bad software ...
84 if (eph_dup($line, $pc10_dupe_age)) {
88 # will we allow it at all?
91 if (@bad = BadWords::check($pc->[3])) {
92 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
97 # is it for me or one of mine?
98 my ($from, $to, $via, $call, $dxchan);
100 if ($pc->[5] gt ' ') {
107 # if this is a 'nodx' node then ignore it
108 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
109 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
113 # if this is a 'bad spotter' user then ignore it
115 $nossid =~ s/-\d+$//;
116 if ($badspotter->in($nossid)) {
117 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
121 # if we are converting announces to talk is it a dup?
123 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
124 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
129 # convert this to a PC93, coming from mycall with origin set and process it as such
130 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
144 # route 'foreign' pc26s
146 if ($pc->[7] ne $main::mycall) {
147 $self->route($pc->[7], $line);
152 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
154 # is the spotted callsign blank? This should really be trapped earlier but it
155 # could break other protocol sentences. Also check for lower case characters.
156 if ($pc->[2] =~ /^\s*$/) {
157 dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
160 if ($pc->[2] =~ /[a-z]/) {
161 dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
166 # if this is a 'nodx' node then ignore it
167 if ($badnode->in($pc->[7])) {
168 dbg("PCPROT: Bad Node $pc->[7], dropped") if isdbg('chanerr');
172 # 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
173 my $nossid = $pc->[6];
174 $nossid =~ s/-\d+$//;
175 if ($badspotter->in($nossid)) {
176 dbg("PCPROT: Bad Spotter $pc->[6], dropped") if isdbg('chanerr');
179 # unless (is_ipaddr($pc->[8]) || DXUser::get_current($pc->[6])) {
180 # dbg("PCPROT: Unknown Spotter $pc->[6], dropped") if isdbg('chanerr');
184 # convert the date to a unix date
185 my $d = cltounix($pc->[3], $pc->[4]);
186 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
187 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
188 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n") if isdbg('chanerr');
193 if ($baddx->in($pc->[2]) || BadWords::check($pc->[2])) {
194 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
199 $pc->[5] =~ s/^\s+//; # take any leading blanks off
200 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
201 if ($pc->[2] =~ /BUST\w*$/) {
202 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
207 if (@bad = BadWords::check($pc->[5])) {
208 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
213 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
215 # global spot filtering on INPUT
216 if ($self->{inspotsfilter}) {
217 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
219 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
224 # If is a new PC11, store it, releasing the one that is there (if any),
225 # if a PC61 comes along then dump the stored PC11
226 # If there is a different PC11 stored, release that one and store this PC11 instead,
227 my $key = join '|', @spot[0..2,4,7];
230 if ($pc->[0] eq 'PC11') {
231 my $r = [$main::systime, $key, \@spot, $line, $origin, $pc];
233 $last = [$main::systime, $key, \@spot, $line, $origin, $pc];
234 dbg("PC11: $origin -> $key stored") if isdbg('pc11');
236 } elsif ($key eq $last->[1]) { # same as last one
237 dbg("PC11: $origin -> $key dupe dropped") if isdbg('pc11');
240 # it's a different PC11, kick the stored one onward and store this one instead,
241 dbg("PC11: PC11 new $origin -> $key stored, $last->[4] -> $last->[1] passed onward") if isdbg('pc11');
242 @spot = @{$last->[2]};
244 $origin = $last->[4];
248 } elsif ($pc->[0] eq 'PC61') {
250 if ($last->[1] eq $key) {
251 # dump $last and proceed with the PC61
252 dbg("PC11: $origin -> $key dropped in favour of PC61") if isdbg('pc11');
255 # it's a different spot send out stored pc11
256 dbg("PC11: last $last->[4] -> $last->[1] different PC61 $origin -> $key, send PC11 first ") if isdbg('pc11');
257 $last->[1] = 'new pc61';
258 handle_11($self, 11, $last->[3], $last->[4], $last->[5]);
260 dbg("PC11: now process PC61 $origin -> $key") if isdbg('pc11');
264 dbg("PC11: Unexpected line '$line' in bagging area (expecting PC61, PC11), ignored");
270 # this goes after the input filtering, but before the add
271 # so that if it is input filtered, it isn't added to the dup
272 # list. This allows it to come in from a "legitimate" source
273 if (Spot::dup(@spot[0..4,5])) {
274 dbg("PCPROT: Duplicate Spot $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot');
282 $ip ||= $spot[14] if exists $spot[14];
283 if (isdbg('progress')) {
284 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
286 my $d = ztime($spot[2]);
287 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
288 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
289 $s .= " route: $origin";
294 # @spot at this point contains:-
295 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
296 # then spotted itu, spotted cq, spotters itu, spotters cq
297 # you should be able to route on any of these
300 # fix up qra locators of known users
301 my $user = DXUser::get_current($spot[4]);
303 my $qra = $user->qra;
304 unless ($qra && is_qra($qra)) {
305 my $lat = $user->lat;
306 my $long = $user->long;
307 if (defined $lat && defined $long) {
308 $user->qra(DXBearing::lltoqra($lat, $long));
313 # send a remote command to a distant cluster if it is visible and there is no
314 # qra locator and we havn't done it for a month.
316 unless ($user->qra) {
318 my $to = $user->homenode;
319 my $last = $user->lastoper || 0;
320 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
321 my $cmd = "forward/opernam $spot[4]";
322 # send the rcmd but we aren't interested in the replies...
323 my $dxchan = $node->dxchan;
324 if ($dxchan && $dxchan->is_clx) {
325 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
327 route(undef, $to, pc34($main::mycall, $to, $cmd));
329 if ($to ne $origin) {
331 $node = Route::Node::get($to);
333 $dxchan = $node->dxchan;
334 if ($dxchan && $dxchan->is_clx) {
335 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
337 route(undef, $to, pc34($main::mycall, $to, $cmd));
341 $user->lastoper($main::systime);
348 if (defined &Local::spot) {
351 $r = Local::spot($self, @spot);
356 # DON'T be silly and send on PC26s!
357 return if $pcno == 26;
359 # send out the filtered spots
360 send_dx_spot($self, $line, @spot) if @spot;
363 # used to kick outstanding PC11 if required
378 # announce duplicate checking
379 $pc->[3] =~ s/^\s+//; # remove leading blanks
383 if (@bad = BadWords::check($pc->[3])) {
384 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
389 # if this is a 'nodx' node then ignore it
390 if ($badnode->in($pc->[5])) {
391 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
395 # if this is a 'bad spotter' user then ignore it
396 my $nossid = $pc->[1];
397 $nossid =~ s/-\d+$//;
398 if ($badspotter->in($nossid)) {
399 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
403 # ignore PC12s from origins that use PCxx protocol
404 my $oref = Route::get($origin);
405 if ($oref->do_pc9x) {
406 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
412 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
413 $self->send_chat(0, $line, @$pc[1..6]);
414 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
416 # ignore something that looks like a chat line coming in with sysop
417 # flag - this is a kludge...
418 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
419 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
423 # here's a bit of fun, convert incoming ann with a callsign in the first word
424 # or one saying 'to <call>' to a talk if we can route to the recipient
426 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
428 my $ref = Route::get($call);
430 $dxchan = $ref->dxchan;
431 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
438 $self->send_announce(0, $line, @$pc[1..6]);
440 $self->route($pc->[2], $line);
444 if (defined &Local::ann) {
447 $r = Local::ann($self, $line, @$pc[1..6]);
461 if (eph_dup($line, $eph_pc15_restime)) {
464 unless ($self->{isolate}) {
465 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
481 my $ncall = $pc->[1];
482 my $newline = "PC16^";
484 # dos I want users from this channel?
485 unless ($self->user->wantpc16) {
486 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
491 if ($ncall eq $main::mycall) {
492 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
497 $h = 1 if DXChannel::get($ncall);
498 if ($h && $self->{call} ne $ncall) {
499 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
503 if (eph_dup($line)) {
507 # isolate now means only accept stuff from this call only
508 if ($self->{isolate} && $ncall ne $self->{call}) {
509 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
513 my $parent = Route::Node::get($ncall);
516 $dxchan = $parent->dxchan;
517 if ($dxchan && $dxchan ne $self) {
518 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
522 # input filter if required
523 return unless $self->in_filter_route($parent);
525 $parent = Route::Node->new($ncall);
529 if ($parent->via_pc92) {
530 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
537 for ($i = 2; $i < $#$pc; $i++) {
538 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
539 next unless $call && $conf && defined $here && is_callsign($call);
540 next if $call eq $main::mycall;
542 eph_del_regex("^PC17\\^$call\\^$ncall");
544 $conf = $conf eq '*';
546 # reject this if we think it is a node already
547 my $r = Route::Node::get($call);
548 my $u = DXUser::get_current($call) unless $r;
549 if ($r || ($u && $u->is_node)) {
550 dbg("PCPROT: $call is a node") if isdbg('chanerr');
554 $r = Route::User::get($call);
555 my $flags = Route::here($here)|Route::conf($conf);
558 my $au = $r->addparent($parent);
559 if ($r->flags != $flags) {
563 push @rout, $r if $h && $au;
565 my @ans = $parent->add_user($call, $flags);
566 push @rout, @ans if $h && @ans;
569 # add this station to the user database, if required
570 my $user = DXUser::get_current($ncall);
571 $user = DXUser->new($call) unless $user;
572 $user->homenode($parent->call) if !$user->homenode;
573 $user->node($parent->call);
574 $user->lastin($main::systime) unless DXChannel::get($call);
577 # send info to all logged in thingies
578 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
579 $self->tell_buddies('loginb', $call, $ncall);
582 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
583 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
597 my $ncall = $pc->[2];
598 my $ucall = $pc->[1];
600 eph_del_regex("^PC16\\^$ncall.*$ucall");
602 # do I want users from this channel?
603 unless ($self->user->wantpc16) {
604 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
608 if ($ncall eq $main::mycall) {
609 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
613 # isolate now means only accept stuff from this call only
614 if ($self->{isolate} && $ncall ne $self->{call}) {
615 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
619 my $uref = Route::User::get($ucall);
621 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
624 my $parent = Route::Node::get($ncall);
626 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
630 $dxchan = DXChannel::get($ncall);
631 if ($dxchan && $dxchan ne $self) {
632 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
637 if ($parent->via_pc92) {
638 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
643 if (DXChannel::get($ucall)) {
644 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
648 # input filter if required and then remove user if present
649 # return unless $self->in_filter_route($parent);
650 $parent->del_user($uref);
652 # send info to all logged in thingies
653 my $user = DXUser::get_current($ncall);
654 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
655 $self->tell_buddies('logoutb', $ucall, $ncall);
657 if (eph_dup($line)) {
661 $self->route_pc17($origin, $line, $parent, $uref);
662 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
674 $self->state('init');
676 my $parent = Route::Node::get($self->{call});
678 # record the type and version offered
679 if (my ($version) = $pc->[1] =~ /DXSpider Version: (\d+\.?\d+?)/) {
680 $self->{version} = 53 + $version;
681 $self->user->version(53 + $version);
682 $parent->version(0 + $version);
683 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
684 $self->{build} = 0 + $build;
685 $self->user->build(0 + $build);
686 $parent->build(0 + $build);
687 dbg("$self->{call} = DXSpider version $version build $build");
688 unless ($self->is_spider) {
689 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
690 $self->user->sort('S');
694 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
696 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
697 $self->version(50.0);
698 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
699 $self->user->version($self->version);
702 if ($pc->[1] =~ /\bpc9x/) {
703 if ($self->{isolate}) {
704 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
705 } elsif (!$self->user->wantpc9x) {
706 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
708 $self->{do_pc9x} = 1;
709 dbg("$self->{call} Set do PC9x");
713 # first clear out any nodes on this dxchannel
714 my @rout = $parent->del_nodes;
715 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
716 $self->send_local_config();
724 # add this station to the user database, if required (don't remove SSID from nodes)
725 my $user = DXUser::get_current($call);
727 $user = DXUser->new($call);
728 $user->priv(1); # I have relented and defaulted nodes
730 $user->homenode($call);
733 $user->lastin($main::systime); # this make it last longer than just this invocation
734 $user->put; # just to make sure it gets written away!!!
739 # incoming cluster list
749 my $newline = "PC19^";
752 my (@rout, @pc92out);
754 # first get the INTERFACE node
755 my $parent = Route::Node::get($self->{call});
757 dbg("PCPROT: my parent $self->{call} has disappeared");
766 # We are making a major change from now on. We are only going to accept
767 # PC19s from directly connected nodes. This means that we are probably
768 # going to throw away most of the data that we are being sent.
770 # The justification for this is that most of it is wrong or out of date
773 # From now on we are only going to believe PC92 data and locally connected
776 for ($i = 1; $i < $#$pc-1; $i += 4) {
777 my $here = $pc->[$i];
778 my $call = uc $pc->[$i+1];
779 my $conf = $pc->[$i+2];
780 my $ver = $pc->[$i+3];
781 next unless defined $here && defined $conf && is_callsign($call);
783 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
785 # check for sane parameters
786 # $ver = 5000 if $ver eq '0000';
787 next unless $ver && $ver =~ /^\d+$/;
788 next if $ver < 5000; # only works with version 5 software
789 next if length $call < 3; # min 3 letter callsigns
790 next if $call eq $main::mycall || $call eq $main::myalias;
792 # check that this PC19 isn't trying to alter the wrong dxchan
794 my $dxchan = DXChannel::get($call);
796 if ($dxchan == $self) {
799 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
804 # isolate now means only accept stuff from this call only
805 if ($self->{isolate} && $call ne $self->{call}) {
806 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
810 my $user = check_add_node($call);
812 # if (eph_dup($genline)) {
813 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
819 if ($parent->via_pc92) {
820 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
825 my $r = Route::Node::get($call);
826 my $flags = Route::here($here)|Route::conf($conf);
828 # modify the routing table if it is in it, otherwise store it in the pc19list for now
831 if ($call ne $parent->call) {
832 if ($self->in_filter_route($r)) {
833 $ar = $parent->add($call, $ver, $flags);
834 # push @rout, $ar if $ar;
839 if ($r->version ne $ver || $r->flags != $flags) {
845 if ($call eq $self->{call} || $user->wantroutepc19) {
846 my $new = Route->new($call); # throw away
847 if ($self->in_filter_route($new)) {
848 my $ar = $parent->add($call, $ver, $flags);
849 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
850 push @rout, $ar if $ar;
851 push @pc92out, $r if $h;
858 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
859 my $mref = DXMsg::get_busy($call);
860 $mref->stop_msg($call) if $mref;
862 $user->lastin($main::systime) unless DXChannel::get($call);
866 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
867 # but remember there will only be one (pair) these because any extras will be
870 # $self->route_pc21($self->{call}, $line, @rout);
871 $self->route_pc19($self->{call}, $line, @rout);
873 if (@pc92out && !$pc92_slug_changes) {
874 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
878 # send local configuration
887 if ($self->{do_pc9x} && $self->{state} ne 'init92') {
888 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
889 $self->{do_pc9x} = 0;
891 $self->send_local_config;
893 $self->state('normal');
894 $self->{lastping} = 0;
895 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
898 # delete a cluster from the list
900 # This should never occur for directly connected nodes.
910 my $call = uc $pc->[1];
912 eph_del_regex("^PC1[679].*$call");
914 # if I get a PC21 from the same callsign as self then ignore it
915 if ($call eq $self->{call}) {
916 dbg("PCPROT: self referencing PC21 from $self->{call}");
920 # for the above reason and also because of the check for PC21s coming
921 # in for self->call from outside being ignored further down
922 # we don't need any isolation code here, because we will never
923 # act on a PC21 with self->call in it.
925 my $parent = Route::Node::get($self->{call});
927 dbg("PCPROT: my parent $self->{call} has disappeared");
934 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
935 my $node = Route::Node::get($call);
938 if ($node->via_pc92) {
939 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
943 my $dxchan = DXChannel::get($call);
944 if ($dxchan && $dxchan != $self) {
945 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
950 return unless $self->in_filter_route($node);
952 # routing objects, force a PC21 if it is local
953 push @rout, $node->del($parent);
954 push @rout, $call if $dxchan && @rout == 0;
957 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
961 if (eph_dup($line)) {
966 $self->route_pc21($origin, $line, @rout);
967 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
980 if ($self->{do_pc9x}) {
981 if ($self->{state} ne 'init92') {
982 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
983 $self->{do_pc9x} = 0;
986 $self->{lastping} = 0;
987 $self->state('normal');
988 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1000 # route foreign' pc27s
1002 if ($pc->[8] ne $main::mycall) {
1003 $self->route($pc->[8], $line);
1010 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1011 my $sfi = unpad($pc->[3]);
1012 my $k = unpad($pc->[4]);
1013 my $i = unpad($pc->[5]);
1014 my ($r) = $pc->[6] =~ /R=(\d+)/;
1016 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1017 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1021 # global wwv filtering on INPUT
1022 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1023 if ($self->{inwwvfilter}) {
1024 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1026 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1030 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1031 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1032 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1036 # note this only takes the first one it gets
1037 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1038 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1040 if (defined &Local::wwv) {
1043 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1048 # DON'T be silly and send on PC27s!
1049 return if $pcno == 27;
1051 # broadcast to the eager world
1052 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1064 my $call = uc $pc->[1];
1066 $nref = Route::Node::get($call);
1067 $uref = Route::User::get($call);
1068 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1070 if (eph_dup($line)) {
1074 $nref->here($pc->[2]) if $nref;
1075 $uref->here($pc->[2]) if $uref;
1076 my $ref = $nref || $uref;
1077 return unless $self->in_filter_route($ref);
1079 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1091 if ($pc->[1] ne $main::mycall) {
1092 $self->route($pc->[1], $line);
1095 if ($pc->[2] eq $main::mycall) {
1096 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1100 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1104 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1107 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1113 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1116 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1121 sub handle_26 {goto &handle_11}
1122 sub handle_27 {goto &handle_23}
1124 # mail/file handling
1133 if ($pc->[1] eq $main::mycall) {
1135 my $sub = "DXMsg::handle_$pcno";
1138 $self->route($pc->[1], $line) unless $self->is_clx;
1142 sub handle_29 {goto &handle_28}
1143 sub handle_30 {goto &handle_28}
1144 sub handle_31 {goto &handle_28}
1145 sub handle_32 {goto &handle_28}
1146 sub handle_33 {goto &handle_28}
1156 if (eph_dup($line, $eph_pc34_restime)) {
1159 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1163 # remote command replies
1172 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1173 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1176 sub handle_36 {goto &handle_34}
1187 if ($pc->[1] eq $main::mycall) {
1189 my $sub = "DXDb::handle_$pcno";
1192 $self->route($pc->[1], $line) unless $self->is_clx;
1196 # node connected list from neighbour
1206 # incoming disconnect
1215 if ($pc->[1] eq $self->{call}) {
1216 $self->disconnect(1);
1218 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1222 sub handle_40 {goto &handle_28}
1233 my $call = $pc->[1];
1234 my $sort = $pc->[2];
1237 my $l = "PC41^$call^$sort";
1238 if (eph_dup($l, $eph_info_restime)) {
1242 # input filter if required
1243 # my $ref = Route::get($call) || Route->new($call);
1244 # return unless $self->in_filter_route($ref);
1246 if ($val eq $sort || $val =~ /^\s*$/) {
1247 dbg('PCPROT: invalid value') if isdbg('chanerr');
1251 if ($call eq $main::mycall || $call eq $main::myalias) {
1252 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1255 my $chan = DXChannel::get($call);
1257 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1261 # add this station to the user database, if required
1262 my $user = DXUser::get_current($call);
1263 $user = DXUser->new($call) unless $user;
1266 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1267 dbg("PCPROT: invalid name") if isdbg('chanerr');
1271 } elsif ($sort == 2) {
1273 } elsif ($sort == 3) {
1274 if (is_latlong($val)) {
1275 my ($lat, $long) = DXBearing::stoll($val);
1276 $user->lat($lat) if $lat;
1277 $user->long($long) if $long;
1278 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1280 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1283 } elsif ($sort == 4) {
1284 $user->homenode($val);
1285 } elsif ($sort == 5) {
1286 if (is_qra(uc $val)) {
1287 my ($lat, $long) = DXBearing::qratoll(uc $val);
1288 $user->lat($lat) if $lat && !$user->lat;
1289 $user->long($long) if $long && !$user->long;
1290 $user->qra(uc $val);
1292 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1296 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1299 unless ($self->{isolate}) {
1300 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1303 # perhaps this IS what we want after all
1304 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1307 sub handle_42 {goto &handle_28}
1311 sub handle_44 {goto &handle_37}
1312 sub handle_45 {goto &handle_37}
1313 sub handle_46 {goto &handle_37}
1314 sub handle_47 {goto &handle_37}
1315 sub handle_48 {goto &handle_37}
1317 # message and database
1326 if (eph_dup($line)) {
1330 if ($pc->[1] eq $main::mycall) {
1331 DXMsg::handle_49($self, @$pc);
1333 $self->route($pc->[1], $line) unless $self->is_clx;
1337 # keep alive/user list
1346 return if (eph_dup($line));
1348 my $call = $pc->[1];
1350 my $node = Route::Node::get($call);
1352 return unless $node->call eq $self->{call};
1353 $node->usercount($pc->[2]) unless $node->users;
1355 $node->PC92C_dxchan($self->call, $pc->[-1]);
1357 # input filter if required
1358 # return unless $self->in_filter_route($node);
1360 unless ($self->{isolate}) {
1361 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1363 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1367 # incoming ping requests/answers
1377 my $from = $pc->[2];
1378 my $flag = $pc->[3];
1380 if ($to eq $main::myalias) {
1381 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1386 if ($to eq $main::mycall) {
1388 $self->send(pc51($from, $to, '0'));
1390 DXXml::Ping::handle_ping_reply($self, $from);
1393 if (eph_dup($line)) {
1396 # route down an appropriate thingy
1397 $self->route($to, $line);
1401 sub handle_61 { goto &handle_11; }
1403 # dunno but route it
1412 my $call = $pc->[1];
1413 if ($call ne $main::mycall) {
1414 $self->route($call, $line);
1427 my $call = $pc->[1];
1430 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1431 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1432 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1435 $pc = [ map { unpad($_) } @$pc ];
1437 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1441 my $wcy = WCY::update($d, @$pc[2..12]);
1442 dbg("WCY: <$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');
1444 if (defined &Local::wcy) {
1447 $rep = Local::wcy($self, @$pc[1..12]);
1452 # broadcast to the eager world
1453 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1456 # remote commands (incoming)
1465 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1468 # remote command replies
1477 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1480 # decode a pc92 call: flag call : version : build
1481 sub _decode_pc92_call
1484 my @part = split /:/, $icall;
1485 my ($flag, $call) = unpack "A A*", $part[0];
1486 unless (defined $flag && $flag ge '0' && $flag le '7') {
1487 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1490 unless ($call && is_callsign($call)) {
1491 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1494 my $is_node = $flag & 4;
1495 my $is_extnode = $flag & 2;
1496 my $here = $flag & 1;
1498 $ip ||= $part[1] if $part[1] && $part[1] !~ /^\d+$/ && ($part[1] =~ /^(?:\d+\.)+/ || $part[1] =~ /^(?:(?:[abcdef\d]+)?,)+/);
1499 $ip =~ s/,/:/g if $ip;
1500 return ($call, $is_node, $is_extnode, $here, $part[1], $part[2], $ip);
1503 # decode a pc92 call: flag call : version : build
1504 sub _encode_pc92_call
1508 # plain call or value
1509 return $ref unless ref $ref;
1511 my $ext = shift || 0;
1513 my $call = $ref->call;
1515 $flag |= $ref->here ? 1 : 0;
1516 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1518 my $dxchan = DXChannel::get($call);
1519 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1520 if (($ext & 1) && $ref->version) {
1521 my $version = $ref->version || 1.0;
1522 $version = $version * 100 + 5300 if $version < 50;
1523 $extra .= ":" . $version;
1526 if (($ext & 2) && $ref->ip) {
1529 $extra .= ':' . $ip;
1531 return "$flag$call$extra";
1544 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1547 # remove spurious IPV6 prefix on IPV4 addresses
1548 $ip =~ s/^::ffff:// if $ip;
1551 my $ncall = $parent->call;
1552 if ($ncall ne $call) {
1554 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1555 @rout = $parent->add($call, $version, Route::here($here), $ip);
1556 my $r = Route::Node::get($call);
1557 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1560 Log('DXProt', "PC92A $call -> $ip on $ncall");
1563 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1564 @rout = $parent->add_user($call, Route::here($here), $ip);
1565 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1566 my $r = Route::User::get($call);
1569 Log('DXProt', "PC92A $call -> $ip on $ncall");
1572 if ($pc92_slug_changes && $parent == $main::routeroot) {
1573 $things_add{$call} = Route::get($call);
1574 delete $things_del{$call};
1577 dbgprintring(10) if isdbg('nologchan');
1578 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1590 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1595 $ref = Route::Node::get($call);
1596 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1597 @rout = $ref->del($parent) if $ref;
1599 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1600 $ref = Route::User::get($call);
1602 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1603 @rout = $parent->del_user($ref);
1606 if ($pc92_slug_changes && $parent == $main::routeroot) {
1607 $things_del{$call} = $ref unless exists $things_add{$call};
1608 delete $things_add{$call};
1614 # this will only happen if we are slugging changes and
1615 # there are some changes to be sent, it will create an add or a delete
1617 sub gen_pc92_changes
1619 my @add = values %things_add;
1620 my @del = values %things_del;
1621 return (\@add, \@del);
1624 sub clear_pc92_changes
1626 %things_add = %things_del = ();
1627 $last_pc92_slug = $main::systime;
1636 return $_last_pc9x_id;
1641 if (!$_last_time || $_last_time != $main::systime) {
1642 $_last_time = $main::systime;
1644 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1647 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1658 # check that the time is between 0 >= $t < 86400
1659 unless ($t >= 0 && $t < 86400) {
1660 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1664 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1665 my $now = $main::systime - $main::systime_daystart ;
1666 my $diff = abs($now - $t);
1667 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1668 my $c = ref $call ? $call->call : $call;
1669 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1673 my $parent = ref $call ? $call : Route::Node::get($call);
1675 # we only do this for external calls whose routing table
1676 # record come and go. The reference for mycall is permanent
1677 # and not that frequently used, it also never times out, so
1678 # the id on it is completely unreliable. Besides, only commands
1679 # originating on this box will go through this code...
1680 if ($parent->call ne $main::mycall) {
1681 my $lastid = $parent->lastid;
1682 if (defined $lastid) {
1684 # note that this is where we determine whether this pc9x has come in yesterday
1685 # but is still greater (modulo 86400) than the lastid or is simply an old
1686 # duplicate sentence. To determine this we need to do some module 86400
1687 # arithmetic. High numbers mean that this is an old duplicate sentence,
1688 # low numbers that it is a new sentence.
1690 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1691 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1692 # 86378 respectively in the calculation below).
1694 if ($t+86400-$lastid > $pc9x_past_age) {
1695 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1698 } elsif ($t == $lastid) {
1699 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1702 # check that if we have a low number in lastid that yesterday's numbers
1703 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1704 if ($lastid+86400-$t < $pc9x_past_age) {
1705 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1712 $parent = Route::Node->new($call);
1714 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1717 if (isdbg('pc92dedupe')) {
1718 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1719 my $val = $parent->{lastid};
1720 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1721 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1723 $parent->lastid($t);
1728 sub pc92_handle_first_slot
1735 my $oparent = $parent;
1739 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1740 if ($call && $is_node) {
1741 if ($call eq $main::mycall) {
1742 dbg("PCPROT: $call looped back onto \$main::mycall ($main::mycall), ignored") if isdbg('chan');
1745 if ($call eq $main::myalias) {
1746 dbg("PCPROT: $call looped back onto \$main::myalias ($main::myalias), ignored") if isdbg('chan');
1749 # this is only accepted from my "self".
1750 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1751 # locally connected. Local nodes always take precedence. But we remember the lastid
1752 # to try to reduce the number of dupe PC92s for this external node.
1753 if (DXChannel::get($call) && $call ne $self->{call}) {
1754 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1755 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1759 # reparent to external node (note that we must have received a 'C' or 'A' record
1760 # from the true parent node for this external before we get one for the this node
1761 unless ($parent = Route::Node::get($call)) {
1762 if ($is_extnode && $oparent) {
1763 @radd = _add_thingy($oparent, $slot, $self, $hops);
1766 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1770 $parent = check_pc9x_t($call, $t, 92) || return;
1771 $parent->via_pc92(1);
1772 $parent->PC92C_dxchan($self->{call}, $hops);
1775 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1778 $parent->here(Route::here($here));
1779 $parent->version($version || $pc19_version) if $version;
1780 $parent->build($build) if $build;
1781 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1782 return ($parent, @radd);
1785 # DXSpider routing entries
1796 my $pcall = $pc->[1];
1798 my $sort = $pc->[3];
1799 my $hops = $pc->[-1];
1801 # this catches loops of A/Ds
1802 # if (eph_dup($line, $pc9x_dupe_age)) {
1806 if ($pcall eq $main::mycall) {
1807 dbg("PCPROT: looped back, ignored") if isdbg('chan');
1811 if ($pcall eq $main::myalias) {
1812 dbg("PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored") if isdbg('chan');
1816 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
1817 if ($self->{isolate}) {
1818 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
1820 } elsif (!$self->user->wantpc9x) {
1821 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
1824 $self->state('init92');
1825 $self->{do_pc9x} = 1;
1826 dbg("DXPROT: Do pc9x set on $pcall");
1829 unless ($self->{do_pc9x}) {
1830 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1834 # don't create routing entries for D records that don't already exist
1835 # this is what causes all those PC92 loops!
1836 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
1837 my $oparent = $parent;
1839 $parent->do_pc9x(1);
1840 $parent->via_pc92(1);
1842 if ($sort eq 'F' || $sort eq 'R') {
1844 # this is the route finding section
1845 # here is where the consequences of the 'find' command
1848 my $from = $pc->[4];
1849 my $target = $pc->[5];
1855 if ($ref = DXChannel::get($target)) {
1856 $flag = 1; # we are directly connected
1858 $ref = Route::get($target);
1859 $dxchan = $ref->dxchan;
1862 if ($ref && $flag && $dxchan) {
1863 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
1866 } elsif ($sort eq 'R') {
1867 if (my $dxchan = DXChannel::get($from)) {
1868 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
1870 my $ref = Route::get($from);
1872 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
1874 $_->send($line) for @dxchan;
1876 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1879 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1885 } elsif ($sort eq 'K') {
1886 $pc92Kin += length $line;
1888 # remember the last channel we arrived on
1889 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1891 my @ent = _decode_pc92_call($pc->[4]);
1896 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
1897 return unless $parent; # dupe
1899 push @radd, $add if $add;
1901 $parent->version($ent[4]) if $ent[4];
1902 $parent->build($ent[5]) if $ent[5];
1904 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1906 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
1908 $pc92Ain += length $line if $sort eq 'A';
1909 $pc92Cin += length $line if $sort eq 'C';
1910 $pc92Din += length $line if $sort eq 'D';
1912 # remember the last channel we arrived on
1913 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1915 # this is the main route section
1916 # here is where all the routes are created and destroyed
1918 # cope with missing duplicate node calls in the first slot
1919 my $me = $pc->[4] || '';
1920 $me ||= _encode_pc92_call($parent) unless $me ;
1922 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
1926 # look at the first one which will always be a node of some sort
1927 # except in the case of 'A' or 'D' in which the $pcall is used
1928 # otherwise use the node call and update any information
1929 # that needs to be done.
1932 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
1933 return unless $parent; # dupe
1936 push @radd, $add if $add;
1939 # do a pass through removing any references to either mycall
1943 next unless $_ && @$_;
1944 if ($_->[0] eq $main::mycall) {
1945 dbg("PCPROT: $_->[0] refers to me, ignored") if isdbg('chanerr');
1953 push @radd, _add_thingy($parent, $_, $self, $hops);
1955 } elsif ($sort eq 'D') {
1957 push @rdel, _del_thingy($parent, $_, $self);
1959 } elsif ($sort eq 'C') {
1960 my (@nodes, @users);
1962 # we reset obscounts on config records as well as K records
1964 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1967 foreach my $r (@nent) {
1968 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
1971 push @nodes, $r->[0];
1973 push @users, $r->[0];
1976 dbg("PCPROT: pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr');
1980 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
1983 foreach my $r (@nent) {
1986 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
1990 foreach my $r (@$dnodes) {
1991 push @rdel,_del_thingy($parent, [$r, 1], $self);
1993 foreach my $r (@$dusers) {
1994 push @rdel,_del_thingy($parent, [$r, 0], $self);
1997 # remember this last PC92C for rebroadcast on demand
1998 $parent->last_PC92C($line);
2000 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2004 foreach my $r (@rdel) {
2007 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2008 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2010 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2011 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2012 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2013 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2014 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2017 # broadcast it if we get here
2018 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2021 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2022 # might be on two or more nodes at the same time or that there may be more than
2023 # one equal distance neighbour to a node.
2025 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2026 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2027 # each and then combined to give a set of dxchans to send the PC9x record down
2029 sub find_pc9x_routes
2032 my $ref = Route::get($to);
2036 if ($ref->isa('Route::User')) {
2037 my $dxchan = DXChannel::get($to);
2038 push @parent, $to if $dxchan;
2039 push @parent, $ref->parents;
2043 foreach my $p (@parent) {
2045 my @routes = Route::findroutes($p);
2046 foreach my $r (@routes) {
2047 $lasthops = $r->[0] unless defined $lasthops;
2048 if ($r->[0] == $lasthops) {
2049 $cand{$r->[1]->call} = $r->[1];
2055 return values %cand;
2066 # $self->{do_pc9x} ||= 1;
2068 my $pcall = $pc->[1]; # this is now checked earlier
2070 # remember that we are converting PC10->PC93 and self will be $main::me if it
2072 unless ($self->{do_pc9x}) {
2073 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2078 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2080 my $to = uc $pc->[3];
2081 my $from = uc $pc->[4];
2082 my $via = uc $pc->[5];
2083 my $text = $pc->[6];
2084 my $onode = uc $pc->[7];
2085 $onode = $pcall if @$pc <= 8;
2087 # this is catch loops caused by bad software ...
2088 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2092 if (isdbg('progress')) {
2093 my $vs = $via ne '*' ? " via $via" : '';
2094 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2098 # will we allow it at all?
2101 if (@bad = BadWords::check($text)) {
2102 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
2107 # if this is a 'bad spotter' user then ignore it
2109 $nossid =~ s/-\d+$//;
2110 if ($badspotter->in($nossid)) {
2111 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
2115 # ignore PC93 coming in from outside this node with a target of local
2116 if ($to eq 'LOCAL' && $self != $main::me) {
2117 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2121 # if it is routeable then then treat it like a talk
2122 my $ref = Route::get($to);
2126 # convert to PC10 or local talks where appropriate
2127 # PC93 capable nodes of the same hop count all get a copy
2128 # if there is a PC10 node then it will get a copy and that
2129 # will be it. Hopefully such a node will not figure highly
2130 # in the route list, unless it is local, 'cos it don't issue PC92s!
2131 # note that both local and PC93s at the same time are possible if the
2132 # user on more than one node.
2133 my @routes = find_pc9x_routes($to);
2135 foreach $dxchan (@routes) {
2136 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2137 if ($dxchan->{do_pc9x}) {
2138 $dxchan->send($line);
2140 $dxchan->talk($from, $to, $via, $text, $onode);
2143 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2148 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2150 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2151 my $wx = $to eq 'WX' ? '1' : '0';
2152 my $local = $via eq 'LOCAL' ? '*' : $via;
2154 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2155 return if $via eq 'LOCAL';
2156 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2157 # chat messages really only locally connected users
2158 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2161 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2162 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2165 # if get here then rebroadcast the thing with its Hop count decremented (if
2166 # there is one). If it has a hop count and it decrements to zero then don't
2169 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2181 unless (eph_dup($line)) {
2183 my $pcall = $pc->[1];
2184 unless (is_callsign($pcall)) {
2185 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2189 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2190 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2192 unless ($self->{isolate}) {
2193 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me