3 # This module impliments the handlers for the protocal mode for a dx cluster
5 # Copyright (c) 1998-2007 Dirk Koopman G1TLH
39 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
40 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
41 $pingint $obscount %pc19list $chatdupeage $chatimportfn
42 $investigation_int $pc19_version $myprot_version
43 %nodehops $baddx $badspotter $badnode $censorpc
44 $allowzero $decode_dk0wcy $send_opernam @checklist
45 $eph_pc15_restime $pc9x_past_age $pc9x_dupe_age
46 $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
47 $pc92Ain $pc92Cin $pc92Din $pc92Kin $pc9x_time_tolerance
48 $pc92filterdef $senderverify
51 $pc9x_dupe_age = 60; # catch loops of circular (usually) D records
52 $pc10_dupe_age = 45; # just something to catch duplicate PC10->PC93 conversions
53 $pc92_slug_changes = 60*1; # slug any changes going outward for this long
54 $last_pc92_slug = 0; # the last time we sent out any delayed add or del PC92s
55 $pc9x_time_tolerance = 15*60; # the time on a pc9x is allowed to be out by this amount
56 $pc9x_past_age = (122*60)+ # maximum age in the past of a px9x (a config record might be the only
57 $pc9x_time_tolerance; # thing a node might send - once an hour and we allow an extra hour for luck)
58 # this is actually the partition between "yesterday" and "today" but old.
59 $senderverify = 0; # 1 - check for forged PC11 or PC61.
60 # 2 - if forged, dump them.
63 $pc92filterdef = bless ([
64 # tag, sort, field, priv, special parser
73 # this is a place to park an incoming PC11 in the sure and certain hope that
74 # a PC61 will be along soon. This has the side benefit that it will delay a
75 # a PC11 for one second - assuming that it is not removed by a PC61 version
77 # incoming talk commands
86 # this is to catch loops caused by bad software ...
87 if (eph_dup($line, $pc10_dupe_age)) {
91 # will we allow it at all?
94 if (@bad = BadWords::check($pc->[3])) {
95 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
100 # is it for me or one of mine?
101 my ($from, $to, $via, $call, $dxchan);
103 if ($pc->[5] gt ' ') {
110 # if this is a 'nodx' node then ignore it
111 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
112 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
116 # if this is a 'bad spotter' user then ignore it
118 $nossid =~ s/-\d+$//;
119 if ($badspotter->in($nossid)) {
120 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
124 # if we are converting announces to talk is it a dup?
126 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
127 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
132 # convert this to a PC93, coming from mycall with origin set and process it as such
133 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
148 my $recurse = shift || 0;
150 # route 'foreign' pc26s
152 if ($pc->[7] ne $main::mycall) {
153 $self->route($pc->[7], $line);
158 dbg("INPUT PC$pcno $line origin $origin recurse: $recurse") if isdbg("pc11");
160 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
162 # is the spotted callsign blank? This should really be trapped earlier but it
163 # could break other protocol sentences. Also check for lower case characters.
164 if ($pc->[2] =~ /^\s*$/) {
165 dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
168 if ($pc->[2] =~ /[a-z]/) {
169 dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
174 # if this is a 'nodx' node then ignore it
175 if ($badnode->in($pc->[7])) {
176 dbg("PCPROT: Bad Node $pc->[7], dropped") if isdbg('chanerr');
180 # 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
181 my $nossid = $pc->[6];
182 $nossid =~ s/-\d+$//;
183 if ($badspotter->in($nossid)) {
184 dbg("PCPROT: Bad Spotter $pc->[6], dropped") if isdbg('chanerr');
188 # convert the date to a unix date
189 my $d = cltounix($pc->[3], $pc->[4]);
190 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
191 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
192 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n") if isdbg('chanerr');
197 if ($baddx->in($pc->[2]) || BadWords::check($pc->[2])) {
198 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
203 $pc->[5] =~ s/^\s+//; # take any leading blanks off
204 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
205 if ($pc->[2] =~ /BUST\w*$/) {
206 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
211 if (@bad = BadWords::check($pc->[5])) {
212 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
218 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
220 # global spot filtering on INPUT
221 if ($self->{inspotsfilter}) {
222 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
224 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
229 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
231 my $key = join '|', @spot[0..2,4,7]; # not including text
235 if ($key eq $pc11_saved->[0]) {
236 dbg("saved PC11 spot $key dumped, better pc61 received") if isdbg("pc11");
243 if ($key eq $pc11_saved->[0]) {
244 dbg("saved PC11 spot $key, dupe pc11 received and dumped") if isdbg("pc11");
245 return; # because it's a dup
249 # can we promote this to a PC61?
250 my $r = Route::User::get($spot[4]); # find spotter
251 if ($r && $r->ip) { # do we have an ip addres
252 $pcno = 61; # now turn this into a PC61
254 dbg("PC11 spot $key promoted to pc61 ip $spot[14]") if isdbg("pc11");
259 if ($pc11_saved && $key ne $pc11_saved) {
260 dbg("saved PC11 spot $pc11_saved->[0] ne new key $key, recursing") if isdbg("pc11");
261 shift @$pc11_saved; # saved key
262 my $self = shift @$pc11_saved;
263 my @saved = @$pc11_saved;
265 $self->handle_11(@saved, 1);
268 # if we are still a PC11, save it for a better offer
270 $pc11_saved = [$key, $self, $pcno, $line, $origin, $pc];
271 $pc11_saved_time = $main::systime;
272 dbg("saved new PC11 spot $key for a better offer") if isdbg("pc11");
275 dbg("PC61 spot $key passed onward") if isdbg("pc11");
280 # this goes after the input filtering, but before the add
281 # so that if it is input filtered, it isn't added to the dup
282 # list. This allows it to come in from a "legitimate" source
283 if (Spot::dup(@spot[0..4,7])) {
284 dbg("PCPROT: Duplicate Spot $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot');
288 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
289 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
290 # to be current once we have seen the first PC92C from that node.
292 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
295 my $nroute = Route::Node::get($pc->[7]);
296 my $uroute = Route::Node::get($pc->[6]);
297 my $local = DXChannel::get($pc->[7]);
299 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
301 my $ip = $pcno == 61 ? $pc->[8] : '';
302 # $s .= "User $pc->[6] not logged in, " unless $uroute;
303 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
304 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
306 my $action = $senderverify > 1 ? ", DUMPED" : '';
308 dbg("PCProt: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
309 return unless $senderverify < 2;
314 # If is a new PC11, store it, releasing the one that is there (if any),
315 # if a PC61 comes along then dump the stored PC11
316 # If there is a different PC11 stored, release that one and store this PC11 instead,
322 $ip ||= $spot[14] if exists $spot[14];
323 if (isdbg('progress')) {
324 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
326 my $d = ztime($spot[2]);
327 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
328 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
329 $s .= " route: $origin";
334 # @spot at this point contains:-
335 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
336 # then spotted itu, spotted cq, spotters itu, spotters cq
337 # you should be able to route on any of these
340 # fix up qra locators of known users
341 my $user = DXUser::get_current($spot[4]);
343 my $qra = $user->qra;
344 unless ($qra && is_qra($qra)) {
345 my $lat = $user->lat;
346 my $long = $user->long;
347 if (defined $lat && defined $long) {
348 $user->qra(DXBearing::lltoqra($lat, $long));
353 # send a remote command to a distant cluster if it is visible and there is no
354 # qra locator and we havn't done it for a month.
356 unless ($user->qra) {
358 my $to = $user->homenode;
359 my $last = $user->lastoper || 0;
360 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
361 my $cmd = "forward/opernam $spot[4]";
362 # send the rcmd but we aren't interested in the replies...
363 my $dxchan = $node->dxchan;
364 if ($dxchan && $dxchan->is_clx) {
365 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
367 route(undef, $to, pc34($main::mycall, $to, $cmd));
369 if ($to ne $origin) {
371 $node = Route::Node::get($to);
373 $dxchan = $node->dxchan;
374 if ($dxchan && $dxchan->is_clx) {
375 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
377 route(undef, $to, pc34($main::mycall, $to, $cmd));
381 $user->lastoper($main::systime);
388 if (defined &Local::spot) {
391 $r = Local::spot($self, @spot);
396 # DON'T be silly and send on PC26s!
397 return if $pcno == 26;
399 # send out the filtered spots
400 send_dx_spot($self, $line, @spot) if @spot;
403 # used to kick outstanding PC11 if required
406 if ($pc11_saved && $main::systime > $pc11_saved_time) {
407 dbg("saved PC11 spot $pc11_saved->[0] timed out waiting, recursing") if isdbg("pc11");
408 shift @$pc11_saved; # saved key
409 my $self = shift @$pc11_saved;
410 my @saved = @$pc11_saved;
412 $self->handle_11(@saved, 1);
425 # announce duplicate checking
426 $pc->[3] =~ s/^\s+//; # remove leading blanks
430 if (@bad = BadWords::check($pc->[3])) {
431 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
436 # if this is a 'nodx' node then ignore it
437 if ($badnode->in($pc->[5])) {
438 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
442 # if this is a 'bad spotter' user then ignore it
443 my $nossid = $pc->[1];
444 $nossid =~ s/-\d+$//;
445 if ($badspotter->in($nossid)) {
446 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
450 # ignore PC12s from origins that use PCxx protocol
451 my $oref = Route::get($origin);
452 if ($oref->do_pc9x) {
453 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
459 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
460 $self->send_chat(0, $line, @$pc[1..6]);
461 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
463 # ignore something that looks like a chat line coming in with sysop
464 # flag - this is a kludge...
465 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
466 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
470 # here's a bit of fun, convert incoming ann with a callsign in the first word
471 # or one saying 'to <call>' to a talk if we can route to the recipient
473 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
475 my $ref = Route::get($call);
477 $dxchan = $ref->dxchan;
478 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
485 $self->send_announce(0, $line, @$pc[1..6]);
487 $self->route($pc->[2], $line);
491 if (defined &Local::ann) {
494 $r = Local::ann($self, $line, @$pc[1..6]);
508 if (eph_dup($line, $eph_pc15_restime)) {
511 unless ($self->{isolate}) {
512 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
528 my $ncall = $pc->[1];
529 my $newline = "PC16^";
531 # dos I want users from this channel?
532 unless ($self->user->wantpc16) {
533 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
538 if ($ncall eq $main::mycall) {
539 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
544 $h = 1 if DXChannel::get($ncall);
545 if ($h && $self->{call} ne $ncall) {
546 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
550 if (eph_dup($line)) {
554 # isolate now means only accept stuff from this call only
555 if ($self->{isolate} && $ncall ne $self->{call}) {
556 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
560 my $parent = Route::Node::get($ncall);
563 $dxchan = $parent->dxchan;
564 if ($dxchan && $dxchan ne $self) {
565 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
569 # input filter if required
570 return unless $self->in_filter_route($parent);
572 $parent = Route::Node->new($ncall);
576 if ($parent->via_pc92) {
577 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
584 for ($i = 2; $i < $#$pc; $i++) {
585 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
586 next unless $call && $conf && defined $here && is_callsign($call);
587 next if $call eq $main::mycall;
589 eph_del_regex("^PC17\\^$call\\^$ncall");
591 $conf = $conf eq '*';
593 # reject this if we think it is a node already
594 my $r = Route::Node::get($call);
595 my $u = DXUser::get_current($call) unless $r;
596 if ($r || ($u && $u->is_node)) {
597 dbg("PCPROT: $call is a node") if isdbg('chanerr');
601 $r = Route::User::get($call);
602 my $flags = Route::here($here)|Route::conf($conf);
605 my $au = $r->addparent($parent);
606 if ($r->flags != $flags) {
610 push @rout, $r if $h && $au;
612 my @ans = $parent->add_user($call, $flags);
613 push @rout, @ans if $h && @ans;
616 # add this station to the user database, if required
617 my $user = DXUser::get_current($ncall);
618 $user = DXUser->new($call) unless $user;
619 $user->homenode($parent->call) if !$user->homenode;
620 $user->node($parent->call);
621 $user->lastin($main::systime) unless DXChannel::get($call);
624 # send info to all logged in thingies
625 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
626 $self->tell_buddies('loginb', $call, $ncall);
629 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
630 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
644 my $ncall = $pc->[2];
645 my $ucall = $pc->[1];
647 eph_del_regex("^PC16\\^$ncall.*$ucall");
649 # do I want users from this channel?
650 unless ($self->user->wantpc16) {
651 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
655 if ($ncall eq $main::mycall) {
656 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
660 # isolate now means only accept stuff from this call only
661 if ($self->{isolate} && $ncall ne $self->{call}) {
662 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
666 my $uref = Route::User::get($ucall);
668 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
671 my $parent = Route::Node::get($ncall);
673 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
677 $dxchan = DXChannel::get($ncall);
678 if ($dxchan && $dxchan ne $self) {
679 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
684 if ($parent->via_pc92) {
685 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
690 if (DXChannel::get($ucall)) {
691 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
695 # input filter if required and then remove user if present
696 # return unless $self->in_filter_route($parent);
697 $parent->del_user($uref);
699 # send info to all logged in thingies
700 my $user = DXUser::get_current($ncall);
701 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
702 $self->tell_buddies('logoutb', $ucall, $ncall);
704 if (eph_dup($line)) {
708 $self->route_pc17($origin, $line, $parent, $uref);
709 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
721 $self->state('init');
723 my $parent = Route::Node::get($self->{call});
725 # record the type and version offered
726 if (my ($version) = $pc->[1] =~ /DXSpider Version: (\d+\.\d+)/) {
727 $self->{version} = 53 + $version;
728 $self->user->version(53 + $version);
729 $parent->version(0 + $version);
730 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
731 $self->{build} = 0 + $build;
732 $self->user->build(0 + $build);
733 $parent->build(0 + $build);
734 dbg("$self->{call} = DXSpider version $version build $build");
735 unless ($self->is_spider) {
736 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
737 $self->user->sort('S');
741 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
743 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
744 $self->version(50.0);
745 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
746 $self->user->version($self->version);
749 if ($pc->[1] =~ /\bpc9x/) {
750 if ($self->{isolate}) {
751 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
752 } elsif (!$self->user->wantpc9x) {
753 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
755 $self->{do_pc9x} = 1;
756 dbg("$self->{call} Set do PC9x");
760 # first clear out any nodes on this dxchannel
761 my @rout = $parent->del_nodes;
762 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
763 $self->send_local_config();
771 my $homenode = shift;
773 # add this station to the user database, if required (don't remove SSID from nodes)
774 my $user = DXUser::get_current($call);
776 $user = DXUser->new($call);
777 $user->sort($type || 'U');
778 if ($user->is_node) {
779 $user->priv(1); # I have relented and defaulted nodes
780 $user->lockout(1) if $user->is_node;
782 $user->homenode($homenode) if $homenode;
783 $user->node($homenode);
785 $user->lastin($main::systime); # this make it last longer than just this invocation
786 $user->put; # just to make sure it gets written away!!!
787 dbg("DXProt: PC92 new user record for $call created");
790 # this is to fix a problem I introduced some build ago by using this function for users
791 # whereas it was only being used for nodes.
792 if ($user->is_user && $user->lockout && $user->priv == 1) {
795 dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
801 # incoming cluster list
811 my $newline = "PC19^";
814 my (@rout, @pc92out);
816 # first get the INTERFACE node
817 my $parent = Route::Node::get($self->{call});
819 dbg("PCPROT: my parent $self->{call} has disappeared");
828 # We are making a major change from now on. We are only going to accept
829 # PC19s from directly connected nodes. This means that we are probably
830 # going to throw away most of the data that we are being sent.
832 # The justification for this is that most of it is wrong or out of date
835 # From now on we are only going to believe PC92 data and locally connected
838 for ($i = 1; $i < $#$pc-1; $i += 4) {
839 my $here = $pc->[$i];
840 my $call = uc $pc->[$i+1];
841 my $conf = $pc->[$i+2];
842 my $ver = $pc->[$i+3];
843 next unless defined $here && defined $conf && is_callsign($call);
845 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
847 # check for sane parameters
848 # $ver = 5000 if $ver eq '0000';
849 next unless $ver && $ver =~ /^\d+$/;
850 next if $ver < 5000; # only works with version 5 software
851 next if length $call < 3; # min 3 letter callsigns
852 next if $call eq $main::mycall || $call eq $main::myalias;
854 # check that this PC19 isn't trying to alter the wrong dxchan
856 my $dxchan = DXChannel::get($call);
858 if ($dxchan == $self) {
861 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
866 # isolate now means only accept stuff from this call only
867 if ($self->{isolate} && $call ne $self->{call}) {
868 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
872 my $user = check_add_user($call, 'A');
874 # if (eph_dup($genline)) {
875 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
881 if ($parent->via_pc92) {
882 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
887 my $r = Route::Node::get($call);
888 my $flags = Route::here($here)|Route::conf($conf);
890 # modify the routing table if it is in it, otherwise store it in the pc19list for now
893 if ($call ne $parent->call) {
894 if ($self->in_filter_route($r)) {
895 $ar = $parent->add($call, $ver, $flags);
896 # push @rout, $ar if $ar;
901 if ($r->version ne $ver || $r->flags != $flags) {
907 if ($call eq $self->{call} || $user->wantroutepc19) {
908 my $new = Route->new($call); # throw away
909 if ($self->in_filter_route($new)) {
910 my $ar = $parent->add($call, $ver, $flags);
911 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
912 push @rout, $ar if $ar;
913 push @pc92out, $r if $h;
920 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
921 my $mref = DXMsg::get_busy($call);
922 $mref->stop_msg($call) if $mref;
924 $user->lastin($main::systime) unless DXChannel::get($call);
928 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
929 # but remember there will only be one (pair) these because any extras will be
932 # $self->route_pc21($self->{call}, $line, @rout);
933 $self->route_pc19($self->{call}, $line, @rout);
935 if (@pc92out && !$pc92_slug_changes) {
936 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
940 # send local configuration
949 if ($self->{do_pc9x} && $self->{state} ne 'init92') {
950 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
951 $self->{do_pc9x} = 0;
953 $self->send_local_config;
955 $self->state('normal');
956 $self->{lastping} = 0;
957 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
960 # delete a cluster from the list
962 # This should never occur for directly connected nodes.
972 my $call = uc $pc->[1];
974 eph_del_regex("^PC1[679].*$call");
976 # if I get a PC21 from the same callsign as self then ignore it
977 if ($call eq $self->{call}) {
978 dbg("PCPROT: self referencing PC21 from $self->{call}");
982 # for the above reason and also because of the check for PC21s coming
983 # in for self->call from outside being ignored further down
984 # we don't need any isolation code here, because we will never
985 # act on a PC21 with self->call in it.
987 my $parent = Route::Node::get($self->{call});
989 dbg("PCPROT: my parent $self->{call} has disappeared");
996 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
997 my $node = Route::Node::get($call);
1000 if ($node->via_pc92) {
1001 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1005 my $dxchan = DXChannel::get($call);
1006 if ($dxchan && $dxchan != $self) {
1007 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1012 return unless $self->in_filter_route($node);
1014 # routing objects, force a PC21 if it is local
1015 push @rout, $node->del($parent);
1016 push @rout, $call if $dxchan && @rout == 0;
1019 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1023 if (eph_dup($line)) {
1028 $self->route_pc21($origin, $line, @rout);
1029 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1042 if ($self->{do_pc9x}) {
1043 if ($self->{state} ne 'init92') {
1044 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1045 $self->{do_pc9x} = 0;
1048 $self->{lastping} = 0;
1049 $self->state('normal');
1050 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1062 # route foreign' pc27s
1064 if ($pc->[8] ne $main::mycall) {
1065 $self->route($pc->[8], $line);
1072 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1073 my $sfi = unpad($pc->[3]);
1074 my $k = unpad($pc->[4]);
1075 my $i = unpad($pc->[5]);
1076 my ($r) = $pc->[6] =~ /R=(\d+)/;
1078 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1079 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1083 # global wwv filtering on INPUT
1084 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1085 if ($self->{inwwvfilter}) {
1086 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1088 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1092 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1093 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1094 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1098 # note this only takes the first one it gets
1099 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1100 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1102 if (defined &Local::wwv) {
1105 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1110 # DON'T be silly and send on PC27s!
1111 return if $pcno == 27;
1113 # broadcast to the eager world
1114 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1126 my $call = uc $pc->[1];
1128 $nref = Route::Node::get($call);
1129 $uref = Route::User::get($call);
1130 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1132 if (eph_dup($line)) {
1136 $nref->here($pc->[2]) if $nref;
1137 $uref->here($pc->[2]) if $uref;
1138 my $ref = $nref || $uref;
1139 return unless $self->in_filter_route($ref);
1141 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1153 if ($pc->[1] ne $main::mycall) {
1154 $self->route($pc->[1], $line);
1157 if ($pc->[2] eq $main::mycall) {
1158 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1162 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1166 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1169 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1175 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1178 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1183 sub handle_26 {goto &handle_11}
1184 sub handle_27 {goto &handle_23}
1186 # mail/file handling
1195 if ($pc->[1] eq $main::mycall) {
1197 my $sub = "DXMsg::handle_$pcno";
1200 $self->route($pc->[1], $line) unless $self->is_clx;
1204 sub handle_29 {goto &handle_28}
1205 sub handle_30 {goto &handle_28}
1206 sub handle_31 {goto &handle_28}
1207 sub handle_32 {goto &handle_28}
1208 sub handle_33 {goto &handle_28}
1218 if (eph_dup($line, $eph_pc34_restime)) {
1221 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1225 # remote command replies
1234 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1235 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1238 sub handle_36 {goto &handle_34}
1249 if ($pc->[1] eq $main::mycall) {
1251 my $sub = "DXDb::handle_$pcno";
1254 $self->route($pc->[1], $line) unless $self->is_clx;
1258 # node connected list from neighbour
1268 # incoming disconnect
1277 if ($pc->[1] eq $self->{call}) {
1278 $self->disconnect(1);
1280 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1284 sub handle_40 {goto &handle_28}
1295 my $call = $pc->[1];
1296 my $sort = $pc->[2];
1299 my $l = "PC41^$call^$sort";
1300 if (eph_dup($l, $eph_info_restime)) {
1304 # input filter if required
1305 # my $ref = Route::get($call) || Route->new($call);
1306 # return unless $self->in_filter_route($ref);
1308 if ($val eq $sort || $val =~ /^\s*$/) {
1309 dbg('PCPROT: invalid value') if isdbg('chanerr');
1313 if ($call eq $main::mycall || $call eq $main::myalias) {
1314 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1317 my $chan = DXChannel::get($call);
1319 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1323 # add this station to the user database, if required
1324 my $user = DXUser::get_current($call);
1325 $user = DXUser->new($call) unless $user;
1328 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1329 dbg("PCPROT: invalid name") if isdbg('chanerr');
1333 } elsif ($sort == 2) {
1335 } elsif ($sort == 3) {
1336 if (is_latlong($val)) {
1337 my ($lat, $long) = DXBearing::stoll($val);
1338 $user->lat($lat) if $lat;
1339 $user->long($long) if $long;
1340 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1342 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1345 } elsif ($sort == 4) {
1346 $user->homenode($val);
1347 } elsif ($sort == 5) {
1348 if (is_qra(uc $val)) {
1349 my ($lat, $long) = DXBearing::qratoll(uc $val);
1350 $user->lat($lat) if $lat && !$user->lat;
1351 $user->long($long) if $long && !$user->long;
1352 $user->qra(uc $val);
1354 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1358 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1361 unless ($self->{isolate}) {
1362 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1365 # perhaps this IS what we want after all
1366 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1369 sub handle_42 {goto &handle_28}
1373 sub handle_44 {goto &handle_37}
1374 sub handle_45 {goto &handle_37}
1375 sub handle_46 {goto &handle_37}
1376 sub handle_47 {goto &handle_37}
1377 sub handle_48 {goto &handle_37}
1379 # message and database
1388 if (eph_dup($line)) {
1392 if ($pc->[1] eq $main::mycall) {
1393 DXMsg::handle_49($self, @$pc);
1395 $self->route($pc->[1], $line) unless $self->is_clx;
1399 # keep alive/user list
1408 return if (eph_dup($line));
1410 my $call = $pc->[1];
1412 my $node = Route::Node::get($call);
1414 return unless $node->call eq $self->{call};
1415 $node->usercount($pc->[2]) unless $node->users;
1417 $node->PC92C_dxchan($self->call, $pc->[-1]);
1419 # input filter if required
1420 # return unless $self->in_filter_route($node);
1422 unless ($self->{isolate}) {
1423 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1425 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1429 # incoming ping requests/answers
1439 my $from = $pc->[2];
1440 my $flag = $pc->[3];
1442 if ($to eq $main::myalias) {
1443 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1448 if ($to eq $main::mycall) {
1450 $self->send(pc51($from, $to, '0'));
1452 DXXml::Ping::handle_ping_reply($self, $from);
1455 if (eph_dup($line)) {
1458 # route down an appropriate thingy
1459 $self->route($to, $line);
1463 sub handle_61 { goto &handle_11; }
1465 # dunno but route it
1474 my $call = $pc->[1];
1475 if ($call ne $main::mycall) {
1476 $self->route($call, $line);
1489 my $call = $pc->[1];
1492 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1493 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1494 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1497 $pc = [ map { unpad($_) } @$pc ];
1499 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1503 my $wcy = WCY::update($d, @$pc[2..12]);
1504 dbg("WCY: <$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');
1506 if (defined &Local::wcy) {
1509 $rep = Local::wcy($self, @$pc[1..12]);
1514 # broadcast to the eager world
1515 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1518 # remote commands (incoming)
1527 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1530 # remote command replies
1539 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1542 # decode a pc92 call: flag call : version : build
1543 sub _decode_pc92_call
1546 my @part = split /:/, $icall;
1547 my ($flag, $call) = unpack "A A*", $part[0];
1548 unless (defined $flag && $flag ge '0' && $flag le '7') {
1549 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1552 unless ($call && is_callsign($call)) {
1553 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1556 my $is_node = $flag & 4;
1557 my $is_extnode = $flag & 2;
1558 my $here = $flag & 1;
1563 if ($part[1] =~ /[,.]/) {
1565 $part[1] = $part[2] = 0;
1566 } elsif ($part[3] =~ /[,.]/) {
1569 $ip =~ s/,/:/g if $ip;
1570 return ($call, $is_node, $is_extnode, $here, $part[1], $part[2], $ip);
1573 # decode a pc92 call: flag call : version : build
1574 sub _encode_pc92_call
1578 # plain call or value
1579 return $ref unless ref $ref;
1581 my $ext = shift || 0;
1583 my $call = $ref->call;
1585 $flag |= $ref->here ? 1 : 0;
1586 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1588 my $dxchan = DXChannel::get($call);
1589 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1590 if (($ext & 1) && $ref->version) {
1591 my $version = $ref->version || 1.0;
1592 $version = $version * 100 + 5300 if $version < 50;
1593 $extra .= ":" . $version;
1596 if (($ext & 2) && $ref->ip) {
1599 $extra .= ':' . $ip;
1601 return "$flag$call$extra";
1614 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1617 # remove spurious IPV6 prefix on IPV4 addresses
1618 $ip =~ s/^::ffff:// if $ip;
1623 my $ncall = $parent->call;
1624 if ($ncall ne $call) {
1628 # normalise call, delete any unnormalised calls in the users file.
1629 # then ignore this thingy
1630 my $normcall = normalise_call($call);
1631 if ($normcall ne $call) {
1632 next if DXChannel::get($call);
1633 $user = DXUser::get($call);
1634 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1635 $user->del if $user;
1636 $call = $normcall; # this is safe because a route add will ignore duplicates
1640 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1641 $user = check_add_user($call, 'A');
1642 @rout = $parent->add($call, $version, Route::here($here), $ip);
1643 $r = Route::Node::get($call);
1644 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1645 if ($version && $version =~ /^\d+$/) {
1646 my $old = $user->sort;
1647 if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1649 dbg("PCProt::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1650 } elsif ($user->is_spider && $version =~ /^\d+$/ && ($version < 3000 || ($version > 4000 && $version < 5455))) {
1651 unless ($version == 5000 && $build == 0) {
1654 dbg("PCProt::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1659 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1660 $user = check_add_user($call, 'U', $parent->call);
1661 @rout = $parent->add_user($call, Route::here($here), $ip);
1662 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1663 $r = Route::User::get($call);
1667 Log('DXProt', "PC92A $call -> $ip on $ncall");
1669 if ($pc92_slug_changes && $parent == $main::routeroot) {
1670 $things_add{$call} = Route::get($call);
1671 delete $things_del{$call};
1673 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1675 dbgprintring(10) if isdbg('nologchan');
1676 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1688 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1693 $ref = Route::Node::get($call);
1694 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1695 @rout = $ref->del($parent) if $ref;
1697 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1698 $ref = Route::User::get($call);
1700 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1701 @rout = $parent->del_user($ref);
1704 if ($pc92_slug_changes && $parent == $main::routeroot) {
1705 $things_del{$call} = $ref unless exists $things_add{$call};
1706 delete $things_add{$call};
1712 # this will only happen if we are slugging changes and
1713 # there are some changes to be sent, it will create an add or a delete
1715 sub gen_pc92_changes
1717 my @add = values %things_add;
1718 my @del = values %things_del;
1719 return (\@add, \@del);
1722 sub clear_pc92_changes
1724 %things_add = %things_del = ();
1725 $last_pc92_slug = $main::systime;
1734 return $_last_pc9x_id;
1739 if (!$_last_time || $_last_time != $main::systime) {
1740 $_last_time = $main::systime;
1742 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1745 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1756 # check that the time is between 0 >= $t < 86400
1757 unless ($t >= 0 && $t < 86400) {
1758 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1762 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1763 my $now = $main::systime - $main::systime_daystart ;
1764 my $diff = abs($now - $t);
1765 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1766 my $c = ref $call ? $call->call : $call;
1767 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1771 my $parent = ref $call ? $call : Route::Node::get($call);
1773 # we only do this for external calls whose routing table
1774 # record come and go. The reference for mycall is permanent
1775 # and not that frequently used, it also never times out, so
1776 # the id on it is completely unreliable. Besides, only commands
1777 # originating on this box will go through this code...
1778 if ($parent->call ne $main::mycall) {
1779 my $lastid = $parent->lastid;
1780 if (defined $lastid) {
1782 # note that this is where we determine whether this pc9x has come in yesterday
1783 # but is still greater (modulo 86400) than the lastid or is simply an old
1784 # duplicate sentence. To determine this we need to do some module 86400
1785 # arithmetic. High numbers mean that this is an old duplicate sentence,
1786 # low numbers that it is a new sentence.
1788 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1789 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1790 # 86378 respectively in the calculation below).
1792 if ($t+86400-$lastid > $pc9x_past_age) {
1793 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1796 } elsif ($t == $lastid) {
1797 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1800 # check that if we have a low number in lastid that yesterday's numbers
1801 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1802 if ($lastid+86400-$t < $pc9x_past_age) {
1803 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1810 $parent = Route::Node->new($call);
1812 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1815 if (isdbg('pc92dedupe')) {
1816 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1817 my $val = $parent->{lastid};
1818 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1819 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1821 $parent->lastid($t);
1826 sub pc92_handle_first_slot
1833 my $oparent = $parent;
1837 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1838 if ($call && $is_node) {
1839 if ($call eq $main::mycall) {
1840 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
1843 if ($call eq $main::myalias) {
1844 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
1847 # this is only accepted from my "self".
1848 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1849 # locally connected. Local nodes always take precedence. But we remember the lastid
1850 # to try to reduce the number of dupe PC92s for this external node.
1851 if (DXChannel::get($call) && $call ne $self->{call}) {
1852 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1853 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1857 # reparent to external node (note that we must have received a 'C' or 'A' record
1858 # from the true parent node for this external before we get one for the this node
1859 unless ($parent = Route::Node::get($call)) {
1860 if ($is_extnode && $oparent) {
1861 @radd = _add_thingy($oparent, $slot, $self, $hops);
1864 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1868 $parent = check_pc9x_t($call, $t, 92) || return;
1869 $parent->via_pc92(1);
1870 $parent->PC92C_dxchan($self->{call}, $hops);
1873 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1876 $parent->here(Route::here($here));
1877 $parent->version($version || $pc19_version) if $version;
1878 $build =~ s/^0\.//, $parent->build($build) if $build;
1879 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1880 return ($parent, @radd);
1883 # DXSpider routing entries
1894 my $pcall = $pc->[1];
1896 my $sort = $pc->[3];
1897 my $hops = $pc->[-1];
1899 # this catches loops of A/Ds
1900 # if (eph_dup($line, $pc9x_dupe_age)) {
1904 if ($pcall eq $main::mycall) {
1905 LogDbg('err', "PCPROT: looped back, ignored");
1909 if ($pcall eq $main::myalias) {
1910 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
1914 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
1915 if ($self->{isolate}) {
1916 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
1918 } elsif (!$self->user->wantpc9x) {
1919 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
1922 $self->state('init92');
1923 $self->{do_pc9x} = 1;
1924 dbg("DXPROT: Do pc9x set on $pcall");
1927 unless ($self->{do_pc9x}) {
1928 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1932 # don't create routing entries for D records that don't already exist
1933 # this is what causes all those PC92 loops!
1934 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
1935 my $oparent = $parent;
1937 $parent->do_pc9x(1);
1938 $parent->via_pc92(1);
1940 if ($sort eq 'F' || $sort eq 'R') {
1942 # this is the route finding section
1943 # here is where the consequences of the 'find' command
1946 my $from = $pc->[4];
1947 my $target = $pc->[5];
1953 if ($ref = DXChannel::get($target)) {
1954 $flag = 1; # we are directly connected
1956 $ref = Route::get($target);
1957 $dxchan = $ref->dxchan;
1960 if ($ref && $flag && $dxchan) {
1961 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
1964 } elsif ($sort eq 'R') {
1965 if (my $dxchan = DXChannel::get($from)) {
1966 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
1968 my $ref = Route::get($from);
1970 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
1972 $_->send($line) for @dxchan;
1974 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
1977 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
1983 } elsif ($sort eq 'K') {
1984 $pc92Kin += length $line;
1986 # remember the last channel we arrived on
1987 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1989 my @ent = _decode_pc92_call($pc->[4]);
1994 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
1995 return unless $parent; # dupe
1997 push @radd, $add if $add;
1999 my $call = $parent->call;
2000 my $version = $ent[4] || 0;
2001 my $build = $ent[5] || 0;
2003 my $oldbuild = $parent->build || 0;
2004 $oldbuild =~ s/^0\.//;
2005 my $oldversion = $parent->version || 0;
2006 my $user = check_add_user($parent->call, 'S');
2007 my $oldsort = $user->sort // '';
2008 if ($version =~ /^\d+$/) {
2009 if ($oldsort ne 'S' || $oldversion != $version || $build != $oldbuild) {
2010 dbg("PCProt PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild) sort: 'S' (was $oldsort)");
2012 $user->version($parent->version($version));
2013 $user->build($parent->build($build));
2017 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2019 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2021 $pc92Ain += length $line if $sort eq 'A';
2022 $pc92Cin += length $line if $sort eq 'C';
2023 $pc92Din += length $line if $sort eq 'D';
2025 # remember the last channel we arrived on
2026 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2028 # this is the main route section
2029 # here is where all the routes are created and destroyed
2031 # cope with missing duplicate node calls in the first slot
2032 my $me = $pc->[4] || '';
2033 $me ||= _encode_pc92_call($parent) unless $me ;
2035 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2039 # look at the first one which will always be a node of some sort
2040 # except in the case of 'A' or 'D' in which the $pcall is used
2041 # otherwise use the node call and update any information
2042 # that needs to be done.
2045 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2046 return unless $parent; # dupe
2049 push @radd, $add if $add;
2052 # do a pass through removing any references to either mycall
2056 next unless $_ && @$_;
2057 if ($_->[0] eq $main::mycall) {
2058 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2061 if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
2062 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2071 push @radd, _add_thingy($parent, $_, $self, $hops);
2073 } elsif ($sort eq 'D') {
2075 push @rdel, _del_thingy($parent, $_, $self);
2077 } elsif ($sort eq 'C') {
2078 my (@nodes, @users);
2080 # we reset obscounts on config records as well as K records
2082 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2085 foreach my $r (@nent) {
2086 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2089 push @nodes, $r->[0];
2091 push @users, $r->[0];
2094 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2098 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2101 foreach my $r (@nent) {
2104 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2108 foreach my $r (@$dnodes) {
2109 push @rdel,_del_thingy($parent, [$r, 1], $self);
2111 foreach my $r (@$dusers) {
2112 push @rdel,_del_thingy($parent, [$r, 0], $self);
2115 # remember this last PC92C for rebroadcast on demand
2116 $parent->last_PC92C($line);
2118 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2122 foreach my $r (@rdel) {
2125 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2126 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2128 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2129 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2130 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2131 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2132 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2135 # broadcast it if we get here
2136 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2139 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2140 # might be on two or more nodes at the same time or that there may be more than
2141 # one equal distance neighbour to a node.
2143 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2144 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2145 # each and then combined to give a set of dxchans to send the PC9x record down
2147 sub find_pc9x_routes
2150 my $ref = Route::get($to);
2154 if ($ref->isa('Route::User')) {
2155 my $dxchan = DXChannel::get($to);
2156 push @parent, $to if $dxchan;
2157 push @parent, $ref->parents;
2161 foreach my $p (@parent) {
2163 my @routes = Route::findroutes($p);
2164 foreach my $r (@routes) {
2165 $lasthops = $r->[0] unless defined $lasthops;
2166 if ($r->[0] == $lasthops) {
2167 $cand{$r->[1]->call} = $r->[1];
2173 return values %cand;
2184 # $self->{do_pc9x} ||= 1;
2186 my $pcall = $pc->[1]; # this is now checked earlier
2188 # remember that we are converting PC10->PC93 and self will be $main::me if it
2190 unless ($self->{do_pc9x}) {
2191 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2196 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2198 my $to = uc $pc->[3];
2199 my $from = uc $pc->[4];
2200 my $via = uc $pc->[5];
2201 my $text = $pc->[6];
2202 my $onode = uc $pc->[7];
2203 $onode = $pcall if @$pc <= 8;
2205 # this is catch loops caused by bad software ...
2206 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2210 if (isdbg('progress')) {
2211 my $vs = $via ne '*' ? " via $via" : '';
2212 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2216 # will we allow it at all?
2219 if (@bad = BadWords::check($text)) {
2220 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
2225 # if this is a 'bad spotter' user then ignore it
2227 $nossid =~ s/-\d+$//;
2228 if ($badspotter->in($nossid)) {
2229 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
2233 # ignore PC93 coming in from outside this node with a target of local
2234 if ($to eq 'LOCAL' && $self != $main::me) {
2235 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2239 # if it is routeable then then treat it like a talk
2240 my $ref = Route::get($to);
2244 # convert to PC10 or local talks where appropriate
2245 # PC93 capable nodes of the same hop count all get a copy
2246 # if there is a PC10 node then it will get a copy and that
2247 # will be it. Hopefully such a node will not figure highly
2248 # in the route list, unless it is local, 'cos it don't issue PC92s!
2249 # note that both local and PC93s at the same time are possible if the
2250 # user on more than one node.
2251 my @routes = find_pc9x_routes($to);
2253 foreach $dxchan (@routes) {
2254 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2255 if ($dxchan->{do_pc9x}) {
2256 $dxchan->send($line);
2258 $dxchan->talk($from, $to, $via, $text, $onode);
2261 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2266 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2268 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2269 my $wx = $to eq 'WX' ? '1' : '0';
2270 my $local = $via eq 'LOCAL' ? '*' : $via;
2272 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2273 return if $via eq 'LOCAL';
2274 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2275 # chat messages really only locally connected users
2276 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2279 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2280 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2283 # if get here then rebroadcast the thing with its Hop count decremented (if
2284 # there is one). If it has a hop count and it decrements to zero then don't
2287 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2299 unless (eph_dup($line)) {
2301 my $pcall = $pc->[1];
2302 unless (is_callsign($pcall)) {
2303 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2307 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2308 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2310 unless ($self->{isolate}) {
2311 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me