3 # This module impliments the handlers for the protocal mode for a dx cluster
5 # Copyright (c) 1998-2007 Dirk Koopman G1TLH
38 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
39 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
40 $pingint $obscount %pc19list $chatdupeage $chatimportfn
41 $investigation_int $pc19_version $myprot_version
42 %nodehops $baddx $badspotter $badnode $censorpc
43 $allowzero $decode_dk0wcy $send_opernam @checklist
44 $eph_pc15_restime $pc9x_past_age $pc9x_dupe_age
45 $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
46 $pc92Ain $pc92Cin $pc92Din $pc92Kin $pc9x_time_tolerance
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 = 0; # the last time we sent out any delayed add or del PC92s
54 $pc9x_time_tolerance = 15*60; # the time on a pc9x is allowed to be out by this amount
55 $pc9x_past_age = (122*60)+ # maximum age in the past of a px9x (a config record might be the only
56 $pc9x_time_tolerance; # thing a node might send - once an hour and we allow an extra hour for luck)
57 # this is actually the partition between "yesterday" and "today" but old.
58 $senderverify = 0; # 1 - check for forged PC11 or PC61.
59 # 2 - if forged, dump them.
62 $pc92filterdef = bless ([
63 # tag, sort, field, priv, special parser
72 # this is a place to park an incoming PC11 in the sure and certain hope that
73 # a PC61 will be along soon. This has the side benefit that it will delay a
74 # a PC11 for one second - assuming that it is not removed by a PC61 version
76 # incoming talk commands
85 # this is to catch loops caused by bad software ...
86 if (eph_dup($line, $pc10_dupe_age)) {
90 # will we allow it at all?
93 if (@bad = BadWords::check($pc->[3])) {
94 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
99 # is it for me or one of mine?
100 my ($from, $to, $via, $call, $dxchan);
102 if ($pc->[5] gt ' ') {
109 # if this is a 'nodx' node then ignore it
110 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
111 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
115 # if this is a 'bad spotter' user then ignore it
117 $nossid =~ s/-\d+$//;
118 if ($badspotter->in($nossid)) {
119 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
123 # if we are converting announces to talk is it a dup?
125 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
126 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
131 # convert this to a PC93, coming from mycall with origin set and process it as such
132 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
147 my $recurse = shift || 0;
149 # route 'foreign' pc26s
151 if ($pc->[7] ne $main::mycall) {
152 $self->route($pc->[7], $line);
157 dbg("INPUT PC$pcno $line origin $origin recurse: $recurse") if isdbg("pc11");
159 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
161 # is the spotted callsign blank? This should really be trapped earlier but it
162 # could break other protocol sentences. Also check for lower case characters.
163 if ($pc->[2] =~ /^\s*$/) {
164 dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
167 if ($pc->[2] =~ /[a-z]/) {
168 dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
173 # if this is a 'nodx' node then ignore it
174 if ($badnode->in($pc->[7])) {
175 dbg("PCPROT: Bad Node $pc->[7], dropped") if isdbg('chanerr');
179 # 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
180 my $nossid = $pc->[6];
181 $nossid =~ s/-\d+$//;
182 if ($badspotter->in($nossid)) {
183 dbg("PCPROT: Bad Spotter $pc->[6], dropped") if isdbg('chanerr');
187 # convert the date to a unix date
188 my $d = cltounix($pc->[3], $pc->[4]);
189 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
190 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
191 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n") if isdbg('chanerr');
196 if ($baddx->in($pc->[2]) || BadWords::check($pc->[2])) {
197 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
202 $pc->[5] =~ s/^\s+//; # take any leading blanks off
203 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
204 if ($pc->[2] =~ /BUST\w*$/) {
205 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
210 if (@bad = BadWords::check($pc->[5])) {
211 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
217 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
219 # global spot filtering on INPUT
220 if ($self->{inspotsfilter}) {
221 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
223 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
228 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
230 my $key = join '|', @spot[0..2,4,7]; # not including text
234 if ($key eq $pc11_saved->[0]) {
235 dbg("saved PC11 spot $key dumped, better pc61 received") if isdbg("pc11");
242 if ($key eq $pc11_saved->[0]) {
243 dbg("saved PC11 spot $key, dupe pc11 received and dumped") if isdbg("pc11");
244 return; # because it's a dup
248 # can we promote this to a PC61?
249 my $r = Route::User::get($spot[4]); # find spotter
250 if ($r && $r->ip) { # do we have an ip addres
251 $pcno = 61; # now turn this into a PC61
253 dbg("PC11 spot $key promoted to pc61 ip $spot[14]") if isdbg("pc11");
258 if ($pc11_saved && $key ne $pc11_saved) {
259 dbg("saved PC11 spot $pc11_saved->[0] ne new key $key, recursing") if isdbg("pc11");
260 shift @$pc11_saved; # saved key
261 my $self = shift @$pc11_saved;
262 my @saved = @$pc11_saved;
264 $self->handle_11(@saved, 1);
267 # if we are still a PC11, save it for a better offer
269 $pc11_saved = [$key, $self, $pcno, $line, $origin, $pc];
270 $pc11_saved_time = $main::systime;
271 dbg("saved new PC11 spot $key for a better offer") if isdbg("pc11");
274 dbg("PC61 spot $key passed onward") if isdbg("pc11");
279 # this goes after the input filtering, but before the add
280 # so that if it is input filtered, it isn't added to the dup
281 # list. This allows it to come in from a "legitimate" source
282 if (Spot::dup(@spot[0..4,7])) {
283 dbg("PCPROT: Duplicate Spot $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot');
287 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
288 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
289 # to be current once we have seen the first PC92C from that node.
291 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
294 my $nroute = Route::Node::get($pc->[7]);
295 my $uroute = Route::Node::get($pc->[6]);
296 my $local = DXChannel::get($pc->[7]);
298 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
300 my $ip = $pcno == 61 ? $pc->[8] : '';
301 # $s .= "User $pc->[6] not logged in, " unless $uroute;
302 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
303 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
305 my $action = $senderverify > 1 ? ", DUMPED" : '';
307 dbg("PCProt: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
308 return unless $senderverify < 2;
313 # If is a new PC11, store it, releasing the one that is there (if any),
314 # if a PC61 comes along then dump the stored PC11
315 # If there is a different PC11 stored, release that one and store this PC11 instead,
321 $ip ||= $spot[14] if exists $spot[14];
322 if (isdbg('progress')) {
323 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
325 my $d = ztime($spot[2]);
326 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
327 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
328 $s .= " route: $origin";
333 # @spot at this point contains:-
334 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
335 # then spotted itu, spotted cq, spotters itu, spotters cq
336 # you should be able to route on any of these
339 # fix up qra locators of known users
340 my $user = DXUser::get_current($spot[4]);
342 my $qra = $user->qra;
343 unless ($qra && is_qra($qra)) {
344 my $lat = $user->lat;
345 my $long = $user->long;
346 if (defined $lat && defined $long) {
347 $user->qra(DXBearing::lltoqra($lat, $long));
352 # send a remote command to a distant cluster if it is visible and there is no
353 # qra locator and we havn't done it for a month.
355 unless ($user->qra) {
357 my $to = $user->homenode;
358 my $last = $user->lastoper || 0;
359 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
360 my $cmd = "forward/opernam $spot[4]";
361 # send the rcmd but we aren't interested in the replies...
362 my $dxchan = $node->dxchan;
363 if ($dxchan && $dxchan->is_clx) {
364 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
366 route(undef, $to, pc34($main::mycall, $to, $cmd));
368 if ($to ne $origin) {
370 $node = Route::Node::get($to);
372 $dxchan = $node->dxchan;
373 if ($dxchan && $dxchan->is_clx) {
374 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
376 route(undef, $to, pc34($main::mycall, $to, $cmd));
380 $user->lastoper($main::systime);
387 if (defined &Local::spot) {
390 $r = Local::spot($self, @spot);
395 # DON'T be silly and send on PC26s!
396 return if $pcno == 26;
398 # send out the filtered spots
399 send_dx_spot($self, $line, @spot) if @spot;
402 # used to kick outstanding PC11 if required
405 if ($pc11_saved && $main::systime > $pc11_saved_time) {
406 dbg("saved PC11 spot $pc11_saved->[0] timed out waiting, recursing") if isdbg("pc11");
407 shift @$pc11_saved; # saved key
408 my $self = shift @$pc11_saved;
409 my @saved = @$pc11_saved;
411 $self->handle_11(@saved, 1);
424 # announce duplicate checking
425 $pc->[3] =~ s/^\s+//; # remove leading blanks
429 if (@bad = BadWords::check($pc->[3])) {
430 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
435 # if this is a 'nodx' node then ignore it
436 if ($badnode->in($pc->[5])) {
437 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
441 # if this is a 'bad spotter' user then ignore it
442 my $nossid = $pc->[1];
443 $nossid =~ s/-\d+$//;
444 if ($badspotter->in($nossid)) {
445 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
449 # ignore PC12s from origins that use PCxx protocol
450 my $oref = Route::get($origin);
451 if ($oref->do_pc9x) {
452 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
458 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
459 $self->send_chat(0, $line, @$pc[1..6]);
460 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
462 # ignore something that looks like a chat line coming in with sysop
463 # flag - this is a kludge...
464 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
465 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
469 # here's a bit of fun, convert incoming ann with a callsign in the first word
470 # or one saying 'to <call>' to a talk if we can route to the recipient
472 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
474 my $ref = Route::get($call);
476 $dxchan = $ref->dxchan;
477 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
484 $self->send_announce(0, $line, @$pc[1..6]);
486 $self->route($pc->[2], $line);
490 if (defined &Local::ann) {
493 $r = Local::ann($self, $line, @$pc[1..6]);
507 if (eph_dup($line, $eph_pc15_restime)) {
510 unless ($self->{isolate}) {
511 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
527 my $ncall = $pc->[1];
528 my $newline = "PC16^";
530 # dos I want users from this channel?
531 unless ($self->user->wantpc16) {
532 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
537 if ($ncall eq $main::mycall) {
538 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
543 $h = 1 if DXChannel::get($ncall);
544 if ($h && $self->{call} ne $ncall) {
545 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
549 if (eph_dup($line)) {
553 # isolate now means only accept stuff from this call only
554 if ($self->{isolate} && $ncall ne $self->{call}) {
555 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
559 my $parent = Route::Node::get($ncall);
562 $dxchan = $parent->dxchan;
563 if ($dxchan && $dxchan ne $self) {
564 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
568 # input filter if required
569 return unless $self->in_filter_route($parent);
571 $parent = Route::Node->new($ncall);
575 if ($parent->via_pc92) {
576 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
583 for ($i = 2; $i < $#$pc; $i++) {
584 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
585 next unless $call && $conf && defined $here && is_callsign($call);
586 next if $call eq $main::mycall;
588 eph_del_regex("^PC17\\^$call\\^$ncall");
590 $conf = $conf eq '*';
592 # reject this if we think it is a node already
593 my $r = Route::Node::get($call);
594 my $u = DXUser::get_current($call) unless $r;
595 if ($r || ($u && $u->is_node)) {
596 dbg("PCPROT: $call is a node") if isdbg('chanerr');
600 $r = Route::User::get($call);
601 my $flags = Route::here($here)|Route::conf($conf);
604 my $au = $r->addparent($parent);
605 if ($r->flags != $flags) {
609 push @rout, $r if $h && $au;
611 my @ans = $parent->add_user($call, $flags);
612 push @rout, @ans if $h && @ans;
615 # add this station to the user database, if required
616 my $user = DXUser::get_current($ncall);
617 $user = DXUser->new($call) unless $user;
618 $user->homenode($parent->call) if !$user->homenode;
619 $user->node($parent->call);
620 $user->lastin($main::systime) unless DXChannel::get($call);
623 # send info to all logged in thingies
624 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
625 $self->tell_buddies('loginb', $call, $ncall);
628 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
629 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
643 my $ncall = $pc->[2];
644 my $ucall = $pc->[1];
646 eph_del_regex("^PC16\\^$ncall.*$ucall");
648 # do I want users from this channel?
649 unless ($self->user->wantpc16) {
650 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
654 if ($ncall eq $main::mycall) {
655 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
659 # isolate now means only accept stuff from this call only
660 if ($self->{isolate} && $ncall ne $self->{call}) {
661 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
665 my $uref = Route::User::get($ucall);
667 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
670 my $parent = Route::Node::get($ncall);
672 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
676 $dxchan = DXChannel::get($ncall);
677 if ($dxchan && $dxchan ne $self) {
678 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
683 if ($parent->via_pc92) {
684 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
689 if (DXChannel::get($ucall)) {
690 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
694 # input filter if required and then remove user if present
695 # return unless $self->in_filter_route($parent);
696 $parent->del_user($uref);
698 # send info to all logged in thingies
699 my $user = DXUser::get_current($ncall);
700 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
701 $self->tell_buddies('logoutb', $ucall, $ncall);
703 if (eph_dup($line)) {
707 $self->route_pc17($origin, $line, $parent, $uref);
708 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
720 $self->state('init');
722 my $parent = Route::Node::get($self->{call});
724 # record the type and version offered
725 if (my ($version) = $pc->[1] =~ /DXSpider Version: (\d+\.\d+)/) {
726 $self->{version} = 53 + $version;
727 $self->user->version(53 + $version);
728 $parent->version(0 + $version);
729 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
730 $self->{build} = 0 + $build;
731 $self->user->build(0 + $build);
732 $parent->build(0 + $build);
733 dbg("$self->{call} = DXSpider version $version build $build");
734 unless ($self->is_spider) {
735 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
736 $self->user->sort('S');
740 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
742 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
743 $self->version(50.0);
744 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
745 $self->user->version($self->version);
748 if ($pc->[1] =~ /\bpc9x/) {
749 if ($self->{isolate}) {
750 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
751 } elsif (!$self->user->wantpc9x) {
752 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
754 $self->{do_pc9x} = 1;
755 dbg("$self->{call} Set do PC9x");
759 # first clear out any nodes on this dxchannel
760 my @rout = $parent->del_nodes;
761 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
762 $self->send_local_config();
770 my $homenode = shift;
772 # add this station to the user database, if required (don't remove SSID from nodes)
773 my $user = DXUser::get_current($call);
775 $user = DXUser->new($call);
776 $user->sort($type || 'U');
777 if ($user->is_node) {
778 $user->priv(1); # I have relented and defaulted nodes
779 $user->lockout(1) if $user->is_node;
781 $user->homenode($homenode) if $homenode;
782 $user->node($homenode);
784 $user->lastin($main::systime); # this make it last longer than just this invocation
785 $user->put; # just to make sure it gets written away!!!
786 dbg("DXProt: PC92 new user record for $call created");
789 # this is to fix a problem I introduced some build ago by using this function for users
790 # whereas it was only being used for nodes.
791 if ($user->is_user && $user->lockout && $user->priv == 1) {
794 dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
800 # incoming cluster list
810 my $newline = "PC19^";
813 my (@rout, @pc92out);
815 # first get the INTERFACE node
816 my $parent = Route::Node::get($self->{call});
818 dbg("PCPROT: my parent $self->{call} has disappeared");
827 # We are making a major change from now on. We are only going to accept
828 # PC19s from directly connected nodes. This means that we are probably
829 # going to throw away most of the data that we are being sent.
831 # The justification for this is that most of it is wrong or out of date
834 # From now on we are only going to believe PC92 data and locally connected
837 for ($i = 1; $i < $#$pc-1; $i += 4) {
838 my $here = $pc->[$i];
839 my $call = uc $pc->[$i+1];
840 my $conf = $pc->[$i+2];
841 my $ver = $pc->[$i+3];
842 next unless defined $here && defined $conf && is_callsign($call);
844 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
846 # check for sane parameters
847 # $ver = 5000 if $ver eq '0000';
848 next unless $ver && $ver =~ /^\d+$/;
849 next if $ver < 5000; # only works with version 5 software
850 next if length $call < 3; # min 3 letter callsigns
851 next if $call eq $main::mycall || $call eq $main::myalias;
853 # check that this PC19 isn't trying to alter the wrong dxchan
855 my $dxchan = DXChannel::get($call);
857 if ($dxchan == $self) {
860 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
865 # isolate now means only accept stuff from this call only
866 if ($self->{isolate} && $call ne $self->{call}) {
867 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
871 my $user = check_add_user($call, 'A');
873 # if (eph_dup($genline)) {
874 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
880 if ($parent->via_pc92) {
881 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
886 my $r = Route::Node::get($call);
887 my $flags = Route::here($here)|Route::conf($conf);
889 # modify the routing table if it is in it, otherwise store it in the pc19list for now
892 if ($call ne $parent->call) {
893 if ($self->in_filter_route($r)) {
894 $ar = $parent->add($call, $ver, $flags);
895 # push @rout, $ar if $ar;
900 if ($r->version ne $ver || $r->flags != $flags) {
906 if ($call eq $self->{call} || $user->wantroutepc19) {
907 my $new = Route->new($call); # throw away
908 if ($self->in_filter_route($new)) {
909 my $ar = $parent->add($call, $ver, $flags);
910 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
911 push @rout, $ar if $ar;
912 push @pc92out, $r if $h;
919 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
920 my $mref = DXMsg::get_busy($call);
921 $mref->stop_msg($call) if $mref;
923 $user->lastin($main::systime) unless DXChannel::get($call);
927 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
928 # but remember there will only be one (pair) these because any extras will be
931 # $self->route_pc21($self->{call}, $line, @rout);
932 $self->route_pc19($self->{call}, $line, @rout);
934 if (@pc92out && !$pc92_slug_changes) {
935 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
939 # send local configuration
948 if ($self->{do_pc9x} && $self->{state} ne 'init92') {
949 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
950 $self->{do_pc9x} = 0;
952 $self->send_local_config;
954 $self->state('normal');
955 $self->{lastping} = 0;
956 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
959 # delete a cluster from the list
961 # This should never occur for directly connected nodes.
971 my $call = uc $pc->[1];
973 eph_del_regex("^PC1[679].*$call");
975 # if I get a PC21 from the same callsign as self then ignore it
976 if ($call eq $self->{call}) {
977 dbg("PCPROT: self referencing PC21 from $self->{call}");
981 # for the above reason and also because of the check for PC21s coming
982 # in for self->call from outside being ignored further down
983 # we don't need any isolation code here, because we will never
984 # act on a PC21 with self->call in it.
986 my $parent = Route::Node::get($self->{call});
988 dbg("PCPROT: my parent $self->{call} has disappeared");
995 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
996 my $node = Route::Node::get($call);
999 if ($node->via_pc92) {
1000 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1004 my $dxchan = DXChannel::get($call);
1005 if ($dxchan && $dxchan != $self) {
1006 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1011 return unless $self->in_filter_route($node);
1013 # routing objects, force a PC21 if it is local
1014 push @rout, $node->del($parent);
1015 push @rout, $call if $dxchan && @rout == 0;
1018 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1022 if (eph_dup($line)) {
1027 $self->route_pc21($origin, $line, @rout);
1028 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1041 if ($self->{do_pc9x}) {
1042 if ($self->{state} ne 'init92') {
1043 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1044 $self->{do_pc9x} = 0;
1047 $self->{lastping} = 0;
1048 $self->state('normal');
1049 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1061 # route foreign' pc27s
1063 if ($pc->[8] ne $main::mycall) {
1064 $self->route($pc->[8], $line);
1071 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1072 my $sfi = unpad($pc->[3]);
1073 my $k = unpad($pc->[4]);
1074 my $i = unpad($pc->[5]);
1075 my ($r) = $pc->[6] =~ /R=(\d+)/;
1077 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1078 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1082 # global wwv filtering on INPUT
1083 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1084 if ($self->{inwwvfilter}) {
1085 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1087 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1091 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1092 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1093 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1097 # note this only takes the first one it gets
1098 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1099 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1101 if (defined &Local::wwv) {
1104 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1109 # DON'T be silly and send on PC27s!
1110 return if $pcno == 27;
1112 # broadcast to the eager world
1113 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1125 my $call = uc $pc->[1];
1127 $nref = Route::Node::get($call);
1128 $uref = Route::User::get($call);
1129 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1131 if (eph_dup($line)) {
1135 $nref->here($pc->[2]) if $nref;
1136 $uref->here($pc->[2]) if $uref;
1137 my $ref = $nref || $uref;
1138 return unless $self->in_filter_route($ref);
1140 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1152 if ($pc->[1] ne $main::mycall) {
1153 $self->route($pc->[1], $line);
1156 if ($pc->[2] eq $main::mycall) {
1157 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1161 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1165 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1168 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1174 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1177 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1182 sub handle_26 {goto &handle_11}
1183 sub handle_27 {goto &handle_23}
1185 # mail/file handling
1194 if ($pc->[1] eq $main::mycall) {
1196 my $sub = "DXMsg::handle_$pcno";
1199 $self->route($pc->[1], $line) unless $self->is_clx;
1203 sub handle_29 {goto &handle_28}
1204 sub handle_30 {goto &handle_28}
1205 sub handle_31 {goto &handle_28}
1206 sub handle_32 {goto &handle_28}
1207 sub handle_33 {goto &handle_28}
1217 if (eph_dup($line, $eph_pc34_restime)) {
1220 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1224 # remote command replies
1233 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1234 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1237 sub handle_36 {goto &handle_34}
1248 if ($pc->[1] eq $main::mycall) {
1250 my $sub = "DXDb::handle_$pcno";
1253 $self->route($pc->[1], $line) unless $self->is_clx;
1257 # node connected list from neighbour
1267 # incoming disconnect
1276 if ($pc->[1] eq $self->{call}) {
1277 $self->disconnect(1);
1279 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1283 sub handle_40 {goto &handle_28}
1294 my $call = $pc->[1];
1295 my $sort = $pc->[2];
1298 my $l = "PC41^$call^$sort";
1299 if (eph_dup($l, $eph_info_restime)) {
1303 # input filter if required
1304 # my $ref = Route::get($call) || Route->new($call);
1305 # return unless $self->in_filter_route($ref);
1307 if ($val eq $sort || $val =~ /^\s*$/) {
1308 dbg('PCPROT: invalid value') if isdbg('chanerr');
1312 if ($call eq $main::mycall || $call eq $main::myalias) {
1313 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1316 my $chan = DXChannel::get($call);
1318 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1322 # add this station to the user database, if required
1323 my $user = DXUser::get_current($call);
1324 $user = DXUser->new($call) unless $user;
1327 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1328 dbg("PCPROT: invalid name") if isdbg('chanerr');
1332 } elsif ($sort == 2) {
1334 } elsif ($sort == 3) {
1335 if (is_latlong($val)) {
1336 my ($lat, $long) = DXBearing::stoll($val);
1337 $user->lat($lat) if $lat;
1338 $user->long($long) if $long;
1339 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1341 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1344 } elsif ($sort == 4) {
1345 $user->homenode($val);
1346 } elsif ($sort == 5) {
1347 if (is_qra(uc $val)) {
1348 my ($lat, $long) = DXBearing::qratoll(uc $val);
1349 $user->lat($lat) if $lat && !$user->lat;
1350 $user->long($long) if $long && !$user->long;
1351 $user->qra(uc $val);
1353 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1357 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1360 unless ($self->{isolate}) {
1361 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1364 # perhaps this IS what we want after all
1365 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1368 sub handle_42 {goto &handle_28}
1372 sub handle_44 {goto &handle_37}
1373 sub handle_45 {goto &handle_37}
1374 sub handle_46 {goto &handle_37}
1375 sub handle_47 {goto &handle_37}
1376 sub handle_48 {goto &handle_37}
1378 # message and database
1387 if (eph_dup($line)) {
1391 if ($pc->[1] eq $main::mycall) {
1392 DXMsg::handle_49($self, @$pc);
1394 $self->route($pc->[1], $line) unless $self->is_clx;
1398 # keep alive/user list
1407 return if (eph_dup($line));
1409 my $call = $pc->[1];
1411 my $node = Route::Node::get($call);
1413 return unless $node->call eq $self->{call};
1414 $node->usercount($pc->[2]) unless $node->users;
1416 $node->PC92C_dxchan($self->call, $pc->[-1]);
1418 # input filter if required
1419 # return unless $self->in_filter_route($node);
1421 unless ($self->{isolate}) {
1422 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1424 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1428 # incoming ping requests/answers
1438 my $from = $pc->[2];
1439 my $flag = $pc->[3];
1441 if ($to eq $main::myalias) {
1442 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1447 if ($to eq $main::mycall) {
1449 $self->send(pc51($from, $to, '0'));
1451 DXXml::Ping::handle_ping_reply($self, $from);
1454 if (eph_dup($line)) {
1457 # route down an appropriate thingy
1458 $self->route($to, $line);
1462 sub handle_61 { goto &handle_11; }
1464 # dunno but route it
1473 my $call = $pc->[1];
1474 if ($call ne $main::mycall) {
1475 $self->route($call, $line);
1488 my $call = $pc->[1];
1491 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1492 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1493 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1496 $pc = [ map { unpad($_) } @$pc ];
1498 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1502 my $wcy = WCY::update($d, @$pc[2..12]);
1503 dbg("WCY: <$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');
1505 if (defined &Local::wcy) {
1508 $rep = Local::wcy($self, @$pc[1..12]);
1513 # broadcast to the eager world
1514 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1517 # remote commands (incoming)
1526 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1529 # remote command replies
1538 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1541 # decode a pc92 call: flag call : version : build
1542 sub _decode_pc92_call
1545 my @part = split /:/, $icall;
1546 my ($flag, $call) = unpack "A A*", $part[0];
1547 unless (defined $flag && $flag ge '0' && $flag le '7') {
1548 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1551 unless ($call && is_callsign($call)) {
1552 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1555 my $is_node = $flag & 4;
1556 my $is_extnode = $flag & 2;
1557 my $here = $flag & 1;
1562 if ($part[1] =~ /[,.]/) {
1564 $part[1] = $part[2] = 0;
1565 } elsif ($part[3] =~ /[,.]/) {
1568 $ip =~ s/,/:/g if $ip;
1569 return ($call, $is_node, $is_extnode, $here, $part[1], $part[2], $ip);
1572 # decode a pc92 call: flag call : version : build
1573 sub _encode_pc92_call
1577 # plain call or value
1578 return $ref unless ref $ref;
1580 my $ext = shift || 0;
1582 my $call = $ref->call;
1584 $flag |= $ref->here ? 1 : 0;
1585 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1587 my $dxchan = DXChannel::get($call);
1588 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1589 if (($ext & 1) && $ref->version) {
1590 my $version = $ref->version || 1.0;
1591 $version = $version * 100 + 5300 if $version < 50;
1592 $extra .= ":" . $version;
1595 if (($ext & 2) && $ref->ip) {
1598 $extra .= ':' . $ip;
1600 return "$flag$call$extra";
1613 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1616 # remove spurious IPV6 prefix on IPV4 addresses
1617 $ip =~ s/^::ffff:// if $ip;
1620 my $ncall = $parent->call;
1621 if ($ncall ne $call) {
1625 # normalise call, delete any unnormalised calls in the users file.
1626 # then ignore this thingy
1627 my $normcall = normalise_call($call);
1628 if ($normcall ne $call) {
1629 next if DXChannel::get($call);
1630 $user = DXUser::get($call);
1631 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1633 $call = $normcall; # this is safe because a route add will ignore duplicates
1637 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1638 $user = check_add_user($call, 'A');
1639 @rout = $parent->add($call, $version, Route::here($here), $ip);
1640 $r = Route::Node::get($call);
1641 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1642 if ($version && $version =~ /\d+/) {
1643 my $old = $user->sort;
1644 if ($user->is_ak1a && (($version >= 5455 && defined $build && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1647 dbg("PCProt::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1648 } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455)) && $version =~ /^\d+$/) {
1649 unless ($version == 5000 && $build == 0) {
1652 dbg("PCProt::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1657 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1658 $user = check_add_user($call, 'U', $parent->call);
1659 @rout = $parent->add_user($call, Route::here($here), $ip);
1660 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1661 $r = Route::User::get($call);
1665 Log('DXProt', "PC92A $call -> $ip on $ncall");
1667 if ($pc92_slug_changes && $parent == $main::routeroot) {
1668 $things_add{$call} = Route::get($call);
1669 delete $things_del{$call};
1671 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1673 dbgprintring(10) if isdbg('nologchan');
1674 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1686 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1691 $ref = Route::Node::get($call);
1692 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1693 @rout = $ref->del($parent) if $ref;
1695 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1696 $ref = Route::User::get($call);
1698 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1699 @rout = $parent->del_user($ref);
1702 if ($pc92_slug_changes && $parent == $main::routeroot) {
1703 $things_del{$call} = $ref unless exists $things_add{$call};
1704 delete $things_add{$call};
1710 # this will only happen if we are slugging changes and
1711 # there are some changes to be sent, it will create an add or a delete
1713 sub gen_pc92_changes
1715 my @add = values %things_add;
1716 my @del = values %things_del;
1717 return (\@add, \@del);
1720 sub clear_pc92_changes
1722 %things_add = %things_del = ();
1723 $last_pc92_slug = $main::systime;
1732 return $_last_pc9x_id;
1737 if (!$_last_time || $_last_time != $main::systime) {
1738 $_last_time = $main::systime;
1740 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1743 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1754 # check that the time is between 0 >= $t < 86400
1755 unless ($t >= 0 && $t < 86400) {
1756 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1760 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1761 my $now = $main::systime - $main::systime_daystart ;
1762 my $diff = abs($now - $t);
1763 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1764 my $c = ref $call ? $call->call : $call;
1765 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1769 my $parent = ref $call ? $call : Route::Node::get($call);
1771 # we only do this for external calls whose routing table
1772 # record come and go. The reference for mycall is permanent
1773 # and not that frequently used, it also never times out, so
1774 # the id on it is completely unreliable. Besides, only commands
1775 # originating on this box will go through this code...
1776 if ($parent->call ne $main::mycall) {
1777 my $lastid = $parent->lastid;
1778 if (defined $lastid) {
1780 # note that this is where we determine whether this pc9x has come in yesterday
1781 # but is still greater (modulo 86400) than the lastid or is simply an old
1782 # duplicate sentence. To determine this we need to do some module 86400
1783 # arithmetic. High numbers mean that this is an old duplicate sentence,
1784 # low numbers that it is a new sentence.
1786 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1787 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1788 # 86378 respectively in the calculation below).
1790 if ($t+86400-$lastid > $pc9x_past_age) {
1791 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1794 } elsif ($t == $lastid) {
1795 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1798 # check that if we have a low number in lastid that yesterday's numbers
1799 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1800 if ($lastid+86400-$t < $pc9x_past_age) {
1801 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1808 $parent = Route::Node->new($call);
1810 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1813 if (isdbg('pc92dedupe')) {
1814 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1815 my $val = $parent->{lastid};
1816 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1817 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1819 $parent->lastid($t);
1824 sub pc92_handle_first_slot
1831 my $oparent = $parent;
1835 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1836 if ($call && $is_node) {
1837 if ($call eq $main::mycall) {
1838 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
1841 if ($call eq $main::myalias) {
1842 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
1845 # this is only accepted from my "self".
1846 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1847 # locally connected. Local nodes always take precedence. But we remember the lastid
1848 # to try to reduce the number of dupe PC92s for this external node.
1849 if (DXChannel::get($call) && $call ne $self->{call}) {
1850 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1851 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1855 # reparent to external node (note that we must have received a 'C' or 'A' record
1856 # from the true parent node for this external before we get one for the this node
1857 unless ($parent = Route::Node::get($call)) {
1858 if ($is_extnode && $oparent) {
1859 @radd = _add_thingy($oparent, $slot, $self, $hops);
1862 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1866 $parent = check_pc9x_t($call, $t, 92) || return;
1867 $parent->via_pc92(1);
1868 $parent->PC92C_dxchan($self->{call}, $hops);
1871 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1874 $parent->here(Route::here($here));
1875 $parent->version($version || $pc19_version) if $version;
1876 $build =~ s/^0\.//, $parent->build($build) if $build;
1877 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1878 return ($parent, @radd);
1881 # DXSpider routing entries
1892 my $pcall = $pc->[1];
1894 my $sort = $pc->[3];
1895 my $hops = $pc->[-1];
1897 # this catches loops of A/Ds
1898 # if (eph_dup($line, $pc9x_dupe_age)) {
1902 if ($pcall eq $main::mycall) {
1903 LogDbg('err', "PCPROT: looped back, ignored");
1907 if ($pcall eq $main::myalias) {
1908 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
1912 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
1913 if ($self->{isolate}) {
1914 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
1916 } elsif (!$self->user->wantpc9x) {
1917 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
1920 $self->state('init92');
1921 $self->{do_pc9x} = 1;
1922 dbg("DXPROT: Do pc9x set on $pcall");
1925 unless ($self->{do_pc9x}) {
1926 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1930 # don't create routing entries for D records that don't already exist
1931 # this is what causes all those PC92 loops!
1932 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
1933 my $oparent = $parent;
1935 $parent->do_pc9x(1);
1936 $parent->via_pc92(1);
1938 if ($sort eq 'F' || $sort eq 'R') {
1940 # this is the route finding section
1941 # here is where the consequences of the 'find' command
1944 my $from = $pc->[4];
1945 my $target = $pc->[5];
1951 if ($ref = DXChannel::get($target)) {
1952 $flag = 1; # we are directly connected
1954 $ref = Route::get($target);
1955 $dxchan = $ref->dxchan;
1958 if ($ref && $flag && $dxchan) {
1959 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
1962 } elsif ($sort eq 'R') {
1963 if (my $dxchan = DXChannel::get($from)) {
1964 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
1966 my $ref = Route::get($from);
1968 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
1970 $_->send($line) for @dxchan;
1972 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
1975 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
1981 } elsif ($sort eq 'K') {
1982 $pc92Kin += length $line;
1984 # remember the last channel we arrived on
1985 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1987 my @ent = _decode_pc92_call($pc->[4]);
1992 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
1993 return unless $parent; # dupe
1995 push @radd, $add if $add;
1997 my $call = $parent->call;
1998 my $version = $ent[4] // 0;
1999 my $build = $ent[5] // 0;
2001 my $oldbuild = $parent->build // 0;
2002 $oldbuild =~ s/^0\.//;
2003 my $oldversion = $parent->version // 0;
2004 my $user = check_add_user($parent->call, 'S');
2005 my $oldsort = $user->sort;
2006 if ($oldsort ne 'S' || $oldversion != $version || $build != $oldbuild) {
2007 dbg("PCProt PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild) sort: 'S' (was $oldsort)");
2009 $user->version($parent->version($version));
2010 $user->build($parent->build($build));
2014 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2016 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2018 $pc92Ain += length $line if $sort eq 'A';
2019 $pc92Cin += length $line if $sort eq 'C';
2020 $pc92Din += length $line if $sort eq 'D';
2022 # remember the last channel we arrived on
2023 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2025 # this is the main route section
2026 # here is where all the routes are created and destroyed
2028 # cope with missing duplicate node calls in the first slot
2029 my $me = $pc->[4] || '';
2030 $me ||= _encode_pc92_call($parent) unless $me ;
2032 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2036 # look at the first one which will always be a node of some sort
2037 # except in the case of 'A' or 'D' in which the $pcall is used
2038 # otherwise use the node call and update any information
2039 # that needs to be done.
2042 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2043 return unless $parent; # dupe
2046 push @radd, $add if $add;
2049 # do a pass through removing any references to either mycall
2053 next unless $_ && @$_;
2054 if ($_->[0] eq $main::mycall) {
2055 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2058 if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
2059 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2068 push @radd, _add_thingy($parent, $_, $self, $hops);
2070 } elsif ($sort eq 'D') {
2072 push @rdel, _del_thingy($parent, $_, $self);
2074 } elsif ($sort eq 'C') {
2075 my (@nodes, @users);
2077 # we reset obscounts on config records as well as K records
2079 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2082 foreach my $r (@nent) {
2083 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2086 push @nodes, $r->[0];
2088 push @users, $r->[0];
2091 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2095 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2098 foreach my $r (@nent) {
2101 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2105 foreach my $r (@$dnodes) {
2106 push @rdel,_del_thingy($parent, [$r, 1], $self);
2108 foreach my $r (@$dusers) {
2109 push @rdel,_del_thingy($parent, [$r, 0], $self);
2112 # remember this last PC92C for rebroadcast on demand
2113 $parent->last_PC92C($line);
2115 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2119 foreach my $r (@rdel) {
2122 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2123 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2125 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2126 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2127 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2128 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2129 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2132 # broadcast it if we get here
2133 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2136 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2137 # might be on two or more nodes at the same time or that there may be more than
2138 # one equal distance neighbour to a node.
2140 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2141 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2142 # each and then combined to give a set of dxchans to send the PC9x record down
2144 sub find_pc9x_routes
2147 my $ref = Route::get($to);
2151 if ($ref->isa('Route::User')) {
2152 my $dxchan = DXChannel::get($to);
2153 push @parent, $to if $dxchan;
2154 push @parent, $ref->parents;
2158 foreach my $p (@parent) {
2160 my @routes = Route::findroutes($p);
2161 foreach my $r (@routes) {
2162 $lasthops = $r->[0] unless defined $lasthops;
2163 if ($r->[0] == $lasthops) {
2164 $cand{$r->[1]->call} = $r->[1];
2170 return values %cand;
2181 # $self->{do_pc9x} ||= 1;
2183 my $pcall = $pc->[1]; # this is now checked earlier
2185 # remember that we are converting PC10->PC93 and self will be $main::me if it
2187 unless ($self->{do_pc9x}) {
2188 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2193 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2195 my $to = uc $pc->[3];
2196 my $from = uc $pc->[4];
2197 my $via = uc $pc->[5];
2198 my $text = $pc->[6];
2199 my $onode = uc $pc->[7];
2200 $onode = $pcall if @$pc <= 8;
2202 # this is catch loops caused by bad software ...
2203 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2207 if (isdbg('progress')) {
2208 my $vs = $via ne '*' ? " via $via" : '';
2209 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2213 # will we allow it at all?
2216 if (@bad = BadWords::check($text)) {
2217 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
2222 # if this is a 'bad spotter' user then ignore it
2224 $nossid =~ s/-\d+$//;
2225 if ($badspotter->in($nossid)) {
2226 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
2230 # ignore PC93 coming in from outside this node with a target of local
2231 if ($to eq 'LOCAL' && $self != $main::me) {
2232 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2236 # if it is routeable then then treat it like a talk
2237 my $ref = Route::get($to);
2241 # convert to PC10 or local talks where appropriate
2242 # PC93 capable nodes of the same hop count all get a copy
2243 # if there is a PC10 node then it will get a copy and that
2244 # will be it. Hopefully such a node will not figure highly
2245 # in the route list, unless it is local, 'cos it don't issue PC92s!
2246 # note that both local and PC93s at the same time are possible if the
2247 # user on more than one node.
2248 my @routes = find_pc9x_routes($to);
2250 foreach $dxchan (@routes) {
2251 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2252 if ($dxchan->{do_pc9x}) {
2253 $dxchan->send($line);
2255 $dxchan->talk($from, $to, $via, $text, $onode);
2258 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2263 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2265 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2266 my $wx = $to eq 'WX' ? '1' : '0';
2267 my $local = $via eq 'LOCAL' ? '*' : $via;
2269 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2270 return if $via eq 'LOCAL';
2271 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2272 # chat messages really only locally connected users
2273 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2276 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2277 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2280 # if get here then rebroadcast the thing with its Hop count decremented (if
2281 # there is one). If it has a hop count and it decrements to zero then don't
2284 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2296 unless (eph_dup($line)) {
2298 my $pcall = $pc->[1];
2299 unless (is_callsign($pcall)) {
2300 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2304 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2305 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2307 unless ($self->{isolate}) {
2308 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me