3 # This module impliments the handlers for the protocal mode for a dx cluster
5 # Copyright (c) 1998-2007 Dirk Koopman G1TLH
40 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
41 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
42 $pingint $obscount %pc19list $chatdupeage $chatimportfn
43 $investigation_int $pc19_version $myprot_version
44 %nodehops $baddx $badspotter $badnode $censorpc
45 $allowzero $decode_dk0wcy $send_opernam @checklist
46 $eph_pc15_restime $pc9x_past_age $pc9x_dupe_age
47 $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
48 $pc92Ain $pc92Cin $pc92Din $pc92Kin $pc9x_time_tolerance
49 $pc92filterdef $senderverify
52 $pc9x_dupe_age = 60; # catch loops of circular (usually) D records
53 $pc10_dupe_age = 45; # just something to catch duplicate PC10->PC93 conversions
54 $pc92_slug_changes = 60*1; # slug any changes going outward for this long
55 $last_pc92_slug = 0; # the last time we sent out any delayed add or del PC92s
56 $pc9x_time_tolerance = 15*60; # the time on a pc9x is allowed to be out by this amount
57 $pc9x_past_age = (122*60)+ # maximum age in the past of a px9x (a config record might be the only
58 $pc9x_time_tolerance; # thing a node might send - once an hour and we allow an extra hour for luck)
59 # this is actually the partition between "yesterday" and "today" but old.
60 $senderverify = 0; # 1 - check for forged PC11 or PC61.
61 # 2 - if forged, dump them.
64 $pc92filterdef = bless ([
65 # tag, sort, field, priv, special parser
74 # this is a place to park an incoming PC11 in the sure and certain hope that
75 # a PC61 will be along soon. This has the side benefit that it will delay a
76 # a PC11 for one second - assuming that it is not removed by a PC61 version
78 # incoming talk commands
87 # this is to catch loops caused by bad software ...
88 if (eph_dup($line, $pc10_dupe_age)) {
92 # will we allow it at all?
95 if (@bad = BadWords::check($pc->[3])) {
96 my $bw = join ', ', @bad;
97 dbg($line) if isdbg('nologchan');
98 dbg("PCPROT: Badwords: '$bw', dropped");
103 # is it for me or one of mine?
104 my ($from, $to, $via, $call, $dxchan);
106 if ($pc->[5] gt ' ') {
113 # if this is a 'nodx' node then ignore it
114 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
115 dbg($line) if isdbg('nologchan');
116 dbg("PCPROT: Bad Node, dropped");
120 # if this is a 'bad spotter' user then ignore it
122 $nossid =~ s/-\d+$//;
123 if ($badspotter->in($nossid)) {
124 dbg($line) if isdbg('nologchan');
125 dbg("PCPROT: Bad Spotter, dropped");
129 # if we are converting announces to talk is it a dup?
131 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
132 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
137 # convert this to a PC93, coming from mycall with origin set and process it as such
138 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
153 my $recurse = shift || 0;
155 # route 'foreign' pc26s
157 if ($pc->[7] ne $main::mycall) {
158 $self->route($pc->[7], $line);
163 dbg("INPUT PC$pcno $line origin $origin recurse: $recurse") if isdbg("pc11");
165 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
167 # is the spotted callsign blank? This should really be trapped earlier but it
168 # could break other protocol sentences. Also check for lower case characters.
169 if ($pc->[2] =~ /^\s*$/) {
170 dbg($line) if isdbg('nologchan');
171 dbg("PCPROT: blank callsign, dropped");
174 if ($pc->[2] =~ /[a-z]/) {
175 dbg($line) if isdbg('nologchan');
176 dbg("PCPROT: lowercase characters, dropped");
181 # if this is a 'nodx' node then ignore it
182 if ($badnode->in($pc->[7])) {
183 dbg($line) if isdbg('nologchan');
184 dbg("PCPROT: Bad Node $pc->[7], dropped");
188 # 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
189 my $nossid = $pc->[6];
190 $nossid =~ s/-\d+$//;
191 if ($badspotter->in($nossid)) {
192 dbg($line) if isdbg('nologchan');
193 dbg("PCPROT: Bad Spotter $pc->[6], dropped");
198 if ($pc->[8] && is_ipaddr($pc->[8])) {
202 if (DXCIDR::find($ip)) {
207 # convert the date to a unix date
208 my $d = cltounix($pc->[3], $pc->[4]);
209 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
210 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
211 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n");
216 if ($baddx->in($pc->[2]) || (my @bad = BadWords::check($pc->[2]))) {
217 my $bw = join ', ', @bad;
218 $bw = qq{ '$bw'} if $bw;
219 dbg("PCPROT: Bad DX spot$bw, ignored");
224 $pc->[5] =~ s/^\s+//; # take any leading blanks off
225 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
226 if ($pc->[2] =~ /BUST\w*$/) {
227 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
232 if (@bad = BadWords::check($pc->[5])) {
233 my $bw = join ', ', @bad;
234 dbg($line) if isdbg('nologchan');
235 dbg("PCPROT: Badwords: '$bw', dropped");
241 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
243 # global spot filtering on INPUT
244 if ($self->{inspotsfilter}) {
245 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
247 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
252 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
254 my $key = join '|', @spot[0..2,4,7]; # not including text
258 if ($key eq $pc11_saved->[0]) {
259 dbg("saved PC11 spot $key dumped, better pc61 received") if isdbg("pc11");
266 if ($key eq $pc11_saved->[0]) {
267 dbg("saved PC11 spot $key, dupe pc11 received and dumped") if isdbg("pc11");
268 return; # because it's a dup
272 # can we promote this to a PC61?
273 my $r = Route::User::get($spot[4]); # find spotter
274 if ($r && $r->ip) { # do we have an ip addres
275 $pcno = 61; # now turn this into a PC61
277 dbg("PC11 spot $key promoted to pc61 ip $spot[14]") if isdbg("pc11");
282 if ($pc11_saved && $key ne $pc11_saved) {
283 dbg("saved PC11 spot $pc11_saved->[0] ne new key $key, recursing") if isdbg("pc11");
284 shift @$pc11_saved; # saved key
285 my $self = shift @$pc11_saved;
286 my @saved = @$pc11_saved;
288 $self->handle_11(@saved, 1);
291 # if we are still a PC11, save it for a better offer
293 $pc11_saved = [$key, $self, $pcno, $line, $origin, $pc];
294 $pc11_saved_time = $main::systime;
295 dbg("saved new PC11 spot $key for a better offer") if isdbg("pc11");
298 dbg("PC61 spot $key passed onward") if isdbg("pc11");
303 # this goes after the input filtering, but before the add
304 # so that if it is input filtered, it isn't added to the dup
305 # list. This allows it to come in from a "legitimate" source
306 if (Spot::dup(@spot[0..4,7])) {
307 dbg("PCPROT: Duplicate Spot $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot');
311 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
312 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
313 # to be current once we have seen the first PC92C from that node.
315 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
318 my $nroute = Route::Node::get($pc->[7]);
319 my $uroute = Route::Node::get($pc->[6]);
320 my $local = DXChannel::get($pc->[7]);
322 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
324 my $ip = $pcno == 61 ? $pc->[8] : '';
325 # $s .= "User $pc->[6] not logged in, " unless $uroute;
326 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
327 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
329 my $action = $senderverify > 1 ? ", DUMPED" : '';
331 dbg("PCProt: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
332 return unless $senderverify < 2;
337 # If is a new PC11, store it, releasing the one that is there (if any),
338 # if a PC61 comes along then dump the stored PC11
339 # If there is a different PC11 stored, release that one and store this PC11 instead,
345 $ip ||= $spot[14] if exists $spot[14];
346 if (isdbg('progress')) {
347 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
349 my $d = ztime($spot[2]);
350 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
351 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
352 $s .= " route: $origin";
357 # @spot at this point contains:-
358 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
359 # then spotted itu, spotted cq, spotters itu, spotters cq
360 # you should be able to route on any of these
363 # fix up qra locators of known users
364 my $user = DXUser::get_current($spot[4]);
366 my $qra = $user->qra;
367 unless ($qra && is_qra($qra)) {
368 my $lat = $user->lat;
369 my $long = $user->long;
370 if (defined $lat && defined $long) {
371 $user->qra(DXBearing::lltoqra($lat, $long));
376 # send a remote command to a distant cluster if it is visible and there is no
377 # qra locator and we havn't done it for a month.
379 unless ($user->qra) {
381 my $to = $user->homenode;
382 my $last = $user->lastoper || 0;
383 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
384 my $cmd = "forward/opernam $spot[4]";
385 # send the rcmd but we aren't interested in the replies...
386 my $dxchan = $node->dxchan;
387 if ($dxchan && $dxchan->is_clx) {
388 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
390 route(undef, $to, pc34($main::mycall, $to, $cmd));
392 if ($to ne $origin) {
394 $node = Route::Node::get($to);
396 $dxchan = $node->dxchan;
397 if ($dxchan && $dxchan->is_clx) {
398 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
400 route(undef, $to, pc34($main::mycall, $to, $cmd));
404 $user->lastoper($main::systime);
411 if (defined &Local::spot) {
414 $r = Local::spot($self, @spot);
419 # DON'T be silly and send on PC26s!
420 return if $pcno == 26;
422 # send out the filtered spots
423 send_dx_spot($self, $line, @spot) if @spot;
426 # used to kick outstanding PC11 if required
429 if ($pc11_saved && $main::systime > $pc11_saved_time) {
430 dbg("saved PC11 spot $pc11_saved->[0] timed out waiting, recursing") if isdbg("pc11");
431 shift @$pc11_saved; # saved key
432 my $self = shift @$pc11_saved;
433 my @saved = @$pc11_saved;
435 $self->handle_11(@saved, 1);
448 # announce duplicate checking
449 $pc->[3] =~ s/^\s+//; # remove leading blanks
453 if (@bad = BadWords::check($pc->[3])) {
454 my $bw = join ', ', @bad;
455 dbg($line) if isdbg('nologchan');
456 dbg("PCPROT: Badwords: '$bw', dropped");
461 # if this is a 'nodx' node then ignore it
462 if ($badnode->in($pc->[5])) {
463 dbg($line) if isdbg('nologchan');
464 dbg("PCPROT: Bad Node, dropped");
468 # if this is a 'bad spotter' user then ignore it
469 my $nossid = $pc->[1];
470 $nossid =~ s/-\d+$//;
471 if ($badspotter->in($nossid)) {
472 dbg($line) if isdbg('nologchan');
473 dbg("PCPROT: Bad Spotter, dropped");
477 # ignore PC12s from origins that use PCxx protocol
478 my $oref = Route::get($origin);
479 if ($oref->do_pc9x) {
480 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
486 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
487 $self->send_chat(0, $line, @$pc[1..6]);
488 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
490 # ignore something that looks like a chat line coming in with sysop
491 # flag - this is a kludge...
492 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
493 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
497 # here's a bit of fun, convert incoming ann with a callsign in the first word
498 # or one saying 'to <call>' to a talk if we can route to the recipient
500 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
502 my $ref = Route::get($call);
504 $dxchan = $ref->dxchan;
505 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
512 $self->send_announce(0, $line, @$pc[1..6]);
514 $self->route($pc->[2], $line);
518 if (defined &Local::ann) {
521 $r = Local::ann($self, $line, @$pc[1..6]);
535 if (eph_dup($line, $eph_pc15_restime)) {
538 unless ($self->{isolate}) {
539 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
555 my $ncall = $pc->[1];
556 my $newline = "PC16^";
558 # dos I want users from this channel?
559 unless ($self->user->wantpc16) {
560 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
565 if ($ncall eq $main::mycall) {
566 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
571 $h = 1 if DXChannel::get($ncall);
572 if ($h && $self->{call} ne $ncall) {
573 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
577 if (eph_dup($line)) {
581 # isolate now means only accept stuff from this call only
582 if ($self->{isolate} && $ncall ne $self->{call}) {
583 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
587 my $parent = Route::Node::get($ncall);
590 $dxchan = $parent->dxchan;
591 if ($dxchan && $dxchan ne $self) {
592 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
596 # input filter if required
597 return unless $self->in_filter_route($parent);
599 $parent = Route::Node->new($ncall);
603 if ($parent->via_pc92) {
604 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
611 for ($i = 2; $i < $#$pc; $i++) {
612 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
613 next unless $call && $conf && defined $here && is_callsign($call);
614 next if $call eq $main::mycall;
616 eph_del_regex("^PC17\\^$call\\^$ncall");
618 $conf = $conf eq '*';
620 # reject this if we think it is a node already
621 my $r = Route::Node::get($call);
622 my $u = DXUser::get_current($call) unless $r;
623 if ($r || ($u && $u->is_node)) {
624 dbg("PCPROT: $call is a node") if isdbg('chanerr');
628 $r = Route::User::get($call);
629 my $flags = Route::here($here)|Route::conf($conf);
632 my $au = $r->addparent($parent);
633 if ($r->flags != $flags) {
637 push @rout, $r if $h && $au;
639 my @ans = $parent->add_user($call, $flags);
640 push @rout, @ans if $h && @ans;
643 # add this station to the user database, if required
644 my $user = DXUser::get_current($ncall);
645 $user = DXUser->new($call) unless $user;
646 $user->homenode($parent->call) if !$user->homenode;
647 $user->node($parent->call);
648 $user->lastin($main::systime) unless DXChannel::get($call);
651 # send info to all logged in thingies
652 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
653 $self->tell_buddies('loginb', $call, $ncall);
656 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
657 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
671 my $ncall = $pc->[2];
672 my $ucall = $pc->[1];
674 eph_del_regex("^PC16\\^$ncall.*$ucall");
676 # do I want users from this channel?
677 unless ($self->user->wantpc16) {
678 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
682 if ($ncall eq $main::mycall) {
683 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
687 # isolate now means only accept stuff from this call only
688 if ($self->{isolate} && $ncall ne $self->{call}) {
689 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
693 my $uref = Route::User::get($ucall);
695 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
698 my $parent = Route::Node::get($ncall);
700 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
704 $dxchan = DXChannel::get($ncall);
705 if ($dxchan && $dxchan ne $self) {
706 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
711 if ($parent->via_pc92) {
712 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
717 if (DXChannel::get($ucall)) {
718 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
722 # input filter if required and then remove user if present
723 # return unless $self->in_filter_route($parent);
724 $parent->del_user($uref);
726 # send info to all logged in thingies
727 my $user = DXUser::get_current($ncall);
728 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
729 $self->tell_buddies('logoutb', $ucall, $ncall);
731 if (eph_dup($line)) {
735 $self->route_pc17($origin, $line, $parent, $uref);
736 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
748 $self->state('init');
750 my $parent = Route::Node::get($self->{call});
752 # record the type and version offered
753 if (my ($version) = $pc->[1] =~ /DXSpider Version: (\d+\.\d+)/) {
754 $self->{version} = 53 + $version;
755 $self->user->version(53 + $version);
756 $parent->version(0 + $version);
757 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
758 $self->{build} = 0 + $build;
759 $self->user->build(0 + $build);
760 $parent->build(0 + $build);
761 dbg("$self->{call} = DXSpider version $version build $build");
762 unless ($self->is_spider) {
763 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
764 $self->user->sort('S');
768 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
770 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
771 $self->version(50.0);
772 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
773 $self->user->version($self->version);
776 if ($pc->[1] =~ /\bpc9x/) {
777 if ($self->{isolate}) {
778 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
779 } elsif (!$self->user->wantpc9x) {
780 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
782 $self->{do_pc9x} = 1;
783 dbg("$self->{call} Set do PC9x");
787 # first clear out any nodes on this dxchannel
788 my @rout = $parent->del_nodes;
789 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
790 $self->send_local_config();
798 my $homenode = shift;
800 # add this station to the user database, if required (don't remove SSID from nodes)
801 my $user = DXUser::get_current($call);
803 $user = DXUser->new($call);
804 $user->sort($type || 'U');
805 if ($user->is_node) {
806 $user->priv(1); # I have relented and defaulted nodes
807 $user->lockout(1) if $user->is_node;
809 $user->homenode($homenode) if $homenode;
810 $user->node($homenode);
813 $user->lastin($main::systime); # this make it last longer than just this invocation
814 $user->put; # just to make sure it gets written away!!!
815 dbg("DXProt: PC92 new user record for $call created");
818 # this is to fix a problem I introduced some build ago by using this function for users
819 # whereas it was only being used for nodes.
820 if ($user->is_user && $user->lockout && ($user->priv // 0) == 1) {
823 dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
829 # incoming cluster list
839 my $newline = "PC19^";
842 my (@rout, @pc92out);
844 # first get the INTERFACE node
845 my $parent = Route::Node::get($self->{call});
847 dbg("PCPROT: my parent $self->{call} has disappeared");
856 # We are making a major change from now on. We are only going to accept
857 # PC19s from directly connected nodes. This means that we are probably
858 # going to throw away most of the data that we are being sent.
860 # The justification for this is that most of it is wrong or out of date
863 # From now on we are only going to believe PC92 data and locally connected
866 for ($i = 1; $i < $#$pc-1; $i += 4) {
867 my $here = $pc->[$i];
868 my $call = uc $pc->[$i+1];
869 my $conf = $pc->[$i+2];
870 my $ver = $pc->[$i+3];
871 next unless defined $here && defined $conf && is_callsign($call);
873 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
875 # check for sane parameters
876 # $ver = 5000 if $ver eq '0000';
877 next unless $ver && $ver =~ /^\d+$/;
878 next if $ver < 5000; # only works with version 5 software
879 next if length $call < 3; # min 3 letter callsigns
880 next if $call eq $main::mycall || $call eq $main::myalias;
882 # check that this PC19 isn't trying to alter the wrong dxchan
884 my $dxchan = DXChannel::get($call);
886 if ($dxchan == $self) {
889 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
894 # isolate now means only accept stuff from this call only
895 if ($self->{isolate} && $call ne $self->{call}) {
896 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
900 my $user = check_add_user($call, 'A');
902 # if (eph_dup($genline)) {
903 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
909 if ($parent->via_pc92) {
910 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
915 my $r = Route::Node::get($call);
916 my $flags = Route::here($here)|Route::conf($conf);
918 # modify the routing table if it is in it, otherwise store it in the pc19list for now
921 if ($call ne $parent->call) {
922 if ($self->in_filter_route($r)) {
923 $ar = $parent->add($call, $ver, $flags);
924 # push @rout, $ar if $ar;
929 if ($r->version ne $ver || $r->flags != $flags) {
935 if ($call eq $self->{call} || $user->wantroutepc19) {
936 my $new = Route->new($call); # throw away
937 if ($self->in_filter_route($new)) {
938 my $ar = $parent->add($call, $ver, $flags);
939 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
940 push @rout, $ar if $ar;
941 push @pc92out, $r if $h;
948 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
949 my $mref = DXMsg::get_busy($call);
950 $mref->stop_msg($call) if $mref;
952 $user->lastin($main::systime) unless DXChannel::get($call);
956 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
957 # but remember there will only be one (pair) these because any extras will be
960 # $self->route_pc21($self->{call}, $line, @rout);
961 $self->route_pc19($self->{call}, $line, @rout);
963 if (@pc92out && !$pc92_slug_changes) {
964 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
968 # send local configuration
977 if ($self->{do_pc9x} && $self->{state} ne 'init92') {
978 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
979 $self->{do_pc9x} = 0;
981 $self->send_local_config;
983 $self->state('normal');
984 $self->{lastping} = 0;
985 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
988 # delete a cluster from the list
990 # This should never occur for directly connected nodes.
1000 my $call = uc $pc->[1];
1002 eph_del_regex("^PC1[679].*$call");
1004 # if I get a PC21 from the same callsign as self then ignore it
1005 if ($call eq $self->{call}) {
1006 dbg("PCPROT: self referencing PC21 from $self->{call}");
1010 # for the above reason and also because of the check for PC21s coming
1011 # in for self->call from outside being ignored further down
1012 # we don't need any isolation code here, because we will never
1013 # act on a PC21 with self->call in it.
1015 my $parent = Route::Node::get($self->{call});
1017 dbg("PCPROT: my parent $self->{call} has disappeared");
1024 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
1025 my $node = Route::Node::get($call);
1028 if ($node->via_pc92) {
1029 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1033 my $dxchan = DXChannel::get($call);
1034 if ($dxchan && $dxchan != $self) {
1035 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1040 return unless $self->in_filter_route($node);
1042 # routing objects, force a PC21 if it is local
1043 push @rout, $node->del($parent);
1044 push @rout, $call if $dxchan && @rout == 0;
1047 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1051 if (eph_dup($line)) {
1056 $self->route_pc21($origin, $line, @rout);
1057 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1070 if ($self->{do_pc9x}) {
1071 if ($self->{state} ne 'init92') {
1072 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1073 $self->{do_pc9x} = 0;
1076 $self->{lastping} = 0;
1077 $self->state('normal');
1078 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1090 # route foreign' pc27s
1092 if ($pc->[8] ne $main::mycall) {
1093 $self->route($pc->[8], $line);
1100 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1101 my $sfi = unpad($pc->[3]);
1102 my $k = unpad($pc->[4]);
1103 my $i = unpad($pc->[5]);
1104 my ($r) = $pc->[6] =~ /R=(\d+)/;
1106 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1107 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1111 # global wwv filtering on INPUT
1112 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1113 if ($self->{inwwvfilter}) {
1114 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1116 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1120 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1121 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1122 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1126 # note this only takes the first one it gets
1127 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1128 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1130 if (defined &Local::wwv) {
1133 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1138 # DON'T be silly and send on PC27s!
1139 return if $pcno == 27;
1141 # broadcast to the eager world
1142 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1154 my $call = uc $pc->[1];
1156 $nref = Route::Node::get($call);
1157 $uref = Route::User::get($call);
1158 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1160 if (eph_dup($line)) {
1164 $nref->here($pc->[2]) if $nref;
1165 $uref->here($pc->[2]) if $uref;
1166 my $ref = $nref || $uref;
1167 return unless $self->in_filter_route($ref);
1169 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1181 if ($pc->[1] ne $main::mycall) {
1182 $self->route($pc->[1], $line);
1185 if ($pc->[2] eq $main::mycall) {
1186 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1190 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1194 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1197 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1203 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1206 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1211 sub handle_26 {goto &handle_11}
1212 sub handle_27 {goto &handle_23}
1214 # mail/file handling
1223 if ($pc->[1] eq $main::mycall) {
1225 my $sub = "DXMsg::handle_$pcno";
1228 $self->route($pc->[1], $line) unless $self->is_clx;
1232 sub handle_29 {goto &handle_28}
1233 sub handle_30 {goto &handle_28}
1234 sub handle_31 {goto &handle_28}
1235 sub handle_32 {goto &handle_28}
1236 sub handle_33 {goto &handle_28}
1246 if (eph_dup($line, $eph_pc34_restime)) {
1249 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1253 # remote command replies
1262 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1263 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1266 sub handle_36 {goto &handle_34}
1277 if ($pc->[1] eq $main::mycall) {
1279 my $sub = "DXDb::handle_$pcno";
1282 $self->route($pc->[1], $line) unless $self->is_clx;
1286 # node connected list from neighbour
1296 # incoming disconnect
1305 if ($pc->[1] eq $self->{call}) {
1306 $self->disconnect(1);
1308 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1312 sub handle_40 {goto &handle_28}
1323 my $call = $pc->[1];
1324 my $sort = $pc->[2];
1327 my $l = "PC41^$call^$sort";
1328 if (eph_dup($l, $eph_info_restime)) {
1332 # input filter if required
1333 # my $ref = Route::get($call) || Route->new($call);
1334 # return unless $self->in_filter_route($ref);
1336 if ($val eq $sort || $val =~ /^\s*$/) {
1337 dbg('PCPROT: invalid value') if isdbg('chanerr');
1341 if ($call eq $main::mycall || $call eq $main::myalias) {
1342 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1345 my $chan = DXChannel::get($call);
1347 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1351 # add this station to the user database, if required
1352 my $user = DXUser::get_current($call);
1353 $user = DXUser->new($call) unless $user;
1356 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1357 dbg("PCPROT: invalid name") if isdbg('chanerr');
1361 } elsif ($sort == 2) {
1363 } elsif ($sort == 3) {
1364 if (is_latlong($val)) {
1365 my ($lat, $long) = DXBearing::stoll($val);
1366 $user->lat($lat) if $lat;
1367 $user->long($long) if $long;
1368 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1370 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1373 } elsif ($sort == 4) {
1374 $user->homenode($val);
1375 } elsif ($sort == 5) {
1376 if (is_qra(uc $val)) {
1377 my ($lat, $long) = DXBearing::qratoll(uc $val);
1378 $user->lat($lat) if $lat && !$user->lat;
1379 $user->long($long) if $long && !$user->long;
1380 $user->qra(uc $val);
1382 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1386 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1389 unless ($self->{isolate}) {
1390 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1393 # perhaps this IS what we want after all
1394 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1397 sub handle_42 {goto &handle_28}
1401 sub handle_44 {goto &handle_37}
1402 sub handle_45 {goto &handle_37}
1403 sub handle_46 {goto &handle_37}
1404 sub handle_47 {goto &handle_37}
1405 sub handle_48 {goto &handle_37}
1407 # message and database
1416 if (eph_dup($line)) {
1420 if ($pc->[1] eq $main::mycall) {
1421 DXMsg::handle_49($self, @$pc);
1423 $self->route($pc->[1], $line) unless $self->is_clx;
1427 # keep alive/user list
1436 return if (eph_dup($line));
1438 my $call = $pc->[1];
1440 my $node = Route::Node::get($call);
1442 return unless $node->call eq $self->{call};
1443 $node->usercount($pc->[2]) unless $node->users;
1445 $node->PC92C_dxchan($self->call, $pc->[-1]);
1447 # input filter if required
1448 # return unless $self->in_filter_route($node);
1450 unless ($self->{isolate}) {
1451 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1453 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1457 # incoming ping requests/answers
1467 my $from = $pc->[2];
1468 my $flag = $pc->[3];
1470 if ($to eq $main::myalias) {
1471 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1476 if ($to eq $main::mycall) {
1478 $self->send(pc51($from, $to, '0'));
1480 DXXml::Ping::handle_ping_reply($self, $from);
1483 if (eph_dup($line)) {
1486 # route down an appropriate thingy
1487 $self->route($to, $line);
1491 sub handle_61 { goto &handle_11; }
1493 # dunno but route it
1502 my $call = $pc->[1];
1503 if ($call ne $main::mycall) {
1504 $self->route($call, $line);
1517 my $call = $pc->[1];
1520 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1521 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1522 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1525 $pc = [ map { unpad($_) } @$pc ];
1527 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1531 my $wcy = WCY::update($d, @$pc[2..12]);
1532 dbg("WCY: <$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');
1534 if (defined &Local::wcy) {
1537 $rep = Local::wcy($self, @$pc[1..12]);
1542 # broadcast to the eager world
1543 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1546 # remote commands (incoming)
1555 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1558 # remote command replies
1567 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1570 # decode a pc92 call: flag call : version : build
1571 sub _decode_pc92_call
1574 my @part = split /:/, $icall;
1575 my ($flag, $call) = unpack "A A*", $part[0];
1576 unless (defined $flag && $flag ge '0' && $flag le '7') {
1577 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1580 unless ($call && is_callsign($call)) {
1581 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1584 my $is_node = $flag & 4;
1585 my $is_extnode = $flag & 2;
1586 my $here = $flag & 1;
1587 my $version = $part[1] || 0;
1588 my $build = $part[2] || 0;
1589 my $ip = $part[3] || '';
1591 # remember that, at this stage, IPV6 addresses have : replaced by ,
1592 if (length $version > 4 && $version =~ /[,\.][\da-f]{1,4}/i) {
1596 $version =~ s/\D//g;
1597 $version = 0 unless $version && $version =~ /^[0-9]+$/;
1600 $build = 0 unless $build && $build =~ /^[0-9]+$/;
1603 $ip =~ s/^::ffff://i;
1604 $ip = '' unless is_ipaddr($ip);
1606 dbg("'$icall' = '" . join("', '", $call, $is_node, $is_extnode, $here, $version, $build, $ip) . "'") if isdbg('pc92');
1607 return ($call, $is_node, $is_extnode, $here, $version+0, $build+0, $ip);
1610 # decode a pc92 call: flag call : version : build
1611 sub _encode_pc92_call
1615 # plain call or value
1616 return $ref unless ref $ref;
1618 my $ext = shift || 0;
1620 my $call = $ref->call;
1622 $flag |= $ref->here ? 1 : 0;
1623 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1625 my $dxchan = DXChannel::get($call);
1626 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1627 if (($ext & 1) && $ref->version) {
1628 my $version = $ref->version || 1.0;
1629 $version = $version * 100 + 5300 if $version < 50;
1630 $extra .= ":" . $version;
1633 if (($ext & 2) && $ref->ip) {
1636 $extra .= ':' . $ip;
1639 return "$flag$call$extra";
1652 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1655 # remove spurious IPV6 prefix on IPV4 addresses
1660 my $ncall = $parent->call;
1661 if ($ncall ne $call) {
1665 # normalise call, delete any unnormalised calls in the users file.
1666 # then ignore this thingy
1667 my $normcall = normalise_call($call);
1668 if ($normcall ne $call) {
1669 next if DXChannel::get($call);
1670 $user = DXUser::get($call);
1671 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1672 $user->del if $user;
1673 $call = $normcall; # this is safe because a route add will ignore duplicates
1677 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1678 $user = check_add_user($call, 'A');
1679 @rout = $parent->add($call, $version, Route::here($here), $ip);
1680 $r = Route::Node::get($call);
1681 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1682 if ($version && is_numeric($version) && !$r->K && !$user->K) {
1683 my $old = $user->sort;
1684 if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1686 dbg("PCProt::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1687 } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455))) {
1688 unless ($version > 0 && $build == 0) {
1691 dbg("PCProt::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1695 $r->version($user->version) if $user->version;
1696 $r->build($user->build) if $user->build;
1697 $r->K(1) if $user->K;
1699 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1700 $user = check_add_user($call, 'U', $parent->call);
1701 @rout = $parent->add_user($call, Route::here($here), $ip);
1702 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1703 $r = Route::User::get($call);
1707 Log('DXProt', "PC92A $call -> $ip on $ncall");
1709 if ($pc92_slug_changes && $parent == $main::routeroot) {
1710 $things_add{$call} = Route::get($call);
1711 delete $things_del{$call};
1713 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1715 dbgprintring(10) if isdbg('nologchan');
1716 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1728 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1733 $ref = Route::Node::get($call);
1734 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1735 @rout = $ref->del($parent) if $ref;
1737 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1738 $ref = Route::User::get($call);
1740 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1741 @rout = $parent->del_user($ref);
1744 if ($pc92_slug_changes && $parent == $main::routeroot) {
1745 $things_del{$call} = $ref unless exists $things_add{$call};
1746 delete $things_add{$call};
1752 # this will only happen if we are slugging changes and
1753 # there are some changes to be sent, it will create an add or a delete
1755 sub gen_pc92_changes
1757 my @add = values %things_add;
1758 my @del = values %things_del;
1759 return (\@add, \@del);
1762 sub clear_pc92_changes
1764 %things_add = %things_del = ();
1765 $last_pc92_slug = $main::systime;
1774 return $_last_pc9x_id;
1779 if (!$_last_time || $_last_time != $main::systime) {
1780 $_last_time = $main::systime;
1782 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1785 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1796 # check that the time is between 0 >= $t < 86400
1797 unless ($t >= 0 && $t < 86400) {
1798 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1802 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1803 my $now = $main::systime - $main::systime_daystart ;
1804 my $diff = abs($now - $t);
1805 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1806 my $c = ref $call ? $call->call : $call;
1807 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1811 my $parent = ref $call ? $call : Route::Node::get($call);
1813 # we only do this for external calls whose routing table
1814 # record come and go. The reference for mycall is permanent
1815 # and not that frequently used, it also never times out, so
1816 # the id on it is completely unreliable. Besides, only commands
1817 # originating on this box will go through this code...
1818 if ($parent->call ne $main::mycall) {
1819 my $lastid = $parent->lastid;
1820 if (defined $lastid) {
1822 # note that this is where we determine whether this pc9x has come in yesterday
1823 # but is still greater (modulo 86400) than the lastid or is simply an old
1824 # duplicate sentence. To determine this we need to do some module 86400
1825 # arithmetic. High numbers mean that this is an old duplicate sentence,
1826 # low numbers that it is a new sentence.
1828 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1829 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1830 # 86378 respectively in the calculation below).
1832 if ($t+86400-$lastid > $pc9x_past_age) {
1833 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1836 } elsif ($t == $lastid) {
1837 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1840 # check that if we have a low number in lastid that yesterday's numbers
1841 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1842 if ($lastid+86400-$t < $pc9x_past_age) {
1843 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1850 $parent = Route::Node->new($call);
1852 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1855 if (isdbg('pc92dedupe')) {
1856 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1857 my $val = $parent->{lastid};
1858 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1859 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1861 $parent->lastid($t);
1866 sub pc92_handle_first_slot
1873 my $oparent = $parent;
1877 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1878 if ($call && $is_node) {
1879 if ($call eq $main::mycall) {
1880 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
1883 if ($call eq $main::myalias) {
1884 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
1887 # this is only accepted from my "self".
1888 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1889 # locally connected. Local nodes always take precedence. But we remember the lastid
1890 # to try to reduce the number of dupe PC92s for this external node.
1891 if (DXChannel::get($call) && $call ne $self->{call}) {
1892 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1893 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1897 # reparent to external node (note that we must have received a 'C' or 'A' record
1898 # from the true parent node for this external before we get one for the this node
1899 unless ($parent = Route::Node::get($call)) {
1900 if ($is_extnode && $oparent) {
1901 @radd = _add_thingy($oparent, $slot, $self, $hops);
1904 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1908 $parent = check_pc9x_t($call, $t, 92) || return;
1909 $parent->via_pc92(1);
1910 $parent->PC92C_dxchan($self->{call}, $hops);
1913 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1916 $parent->here(Route::here($here));
1917 $parent->version($version || $pc19_version) if $version;
1918 $parent->build($build) if $build;
1919 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1920 return ($parent, @radd);
1923 # DXSpider routing entries
1934 my $pcall = $pc->[1];
1936 my $sort = $pc->[3];
1937 my $hops = $pc->[-1];
1939 # this catches loops of A/Ds
1940 # if (eph_dup($line, $pc9x_dupe_age)) {
1944 if ($pcall eq $main::mycall) {
1945 LogDbg('err', "PCPROT: looped back, ignored");
1949 if ($pcall eq $main::myalias) {
1950 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
1954 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
1955 if ($self->{isolate}) {
1956 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
1958 } elsif (!$self->user->wantpc9x) {
1959 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
1962 $self->state('init92');
1963 $self->{do_pc9x} = 1;
1964 dbg("DXPROT: Do pc9x set on $pcall");
1967 unless ($self->{do_pc9x}) {
1968 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1972 # don't create routing entries for D records that don't already exist
1973 # this is what causes all those PC92 loops!
1974 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
1975 my $oparent = $parent;
1977 $parent->do_pc9x(1);
1978 $parent->via_pc92(1);
1980 if ($sort eq 'F' || $sort eq 'R') {
1982 # this is the route finding section
1983 # here is where the consequences of the 'find' command
1986 my $from = $pc->[4];
1987 my $target = $pc->[5];
1993 if ($ref = DXChannel::get($target)) {
1994 $flag = 1; # we are directly connected
1996 $ref = Route::get($target);
1997 $dxchan = $ref->dxchan;
2000 if ($ref && $flag && $dxchan) {
2001 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
2004 } elsif ($sort eq 'R') {
2005 if (my $dxchan = DXChannel::get($from)) {
2006 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
2008 my $ref = Route::get($from);
2010 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
2012 $_->send($line) for @dxchan;
2014 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2017 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2023 } elsif ($sort eq 'K') {
2024 $pc92Kin += length $line;
2026 # remember the last channel we arrived on
2027 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2029 my @ent = _decode_pc92_call($pc->[4]);
2034 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
2035 return unless $parent; # dupe
2037 push @radd, $add if $add;
2039 my $call = $parent->call;
2040 my $version = $ent[4] || 0;
2041 my $build = $ent[5] || 0;
2043 my $oldbuild = $parent->build || 0;
2044 my $oldversion = $parent->version || 0;
2045 my $user = check_add_user($parent->call, 'S');
2046 my $oldsort = $user->sort // '';
2048 dbg("PCProt PC92 K v: $version ov: $oldversion b: $build ob: $oldbuild pk: " . ($parent->K || '0') . " uk: " . ($user->K || 0)) if isdbg('pc92k');
2050 if (is_numeric($version) || is_numeric($build)) {
2052 if (($oldversion ne $version || $build ne $oldbuild)) {
2053 dbg("PCProt PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild)");
2054 $user->version($parent->version($version));
2055 $user->build($parent->build($build));
2058 if ($oldsort ne 'S') {
2059 dbg("PCProt PC92 K node $call updated sort: $sort (was $oldsort)");
2064 dbg("PCProt PC92 K node $call updated - marked as PC92 K user");
2068 $user->put if $changed;
2069 $parent->K(1); # mark this as come in on a K
2071 dbg("DXProt PC92 K version call $call: invalid version: '$version' or build: '$version', ignored");
2073 dbg("ROUTE: reset obscount on $call now " . $parent->obscount) if isdbg('obscount');
2075 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2077 $pc92Ain += length $line if $sort eq 'A';
2078 $pc92Cin += length $line if $sort eq 'C';
2079 $pc92Din += length $line if $sort eq 'D';
2081 # remember the last channel we arrived on
2082 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2084 # this is the main route section
2085 # here is where all the routes are created and destroyed
2087 # cope with missing duplicate node calls in the first slot
2088 my $me = $pc->[4] || '';
2089 $me ||= _encode_pc92_call($parent) unless $me ;
2091 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2095 # look at the first one which will always be a node of some sort
2096 # except in the case of 'A' or 'D' in which the $pcall is used
2097 # otherwise use the node call and update any information
2098 # that needs to be done.
2101 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2102 return unless $parent; # dupe
2105 push @radd, $add if $add;
2108 # do a pass through removing any references to either mycall
2112 next unless $_ && @$_;
2113 if ($_->[0] eq $main::mycall) {
2114 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2117 if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
2118 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2127 push @radd, _add_thingy($parent, $_, $self, $hops);
2129 } elsif ($sort eq 'D') {
2131 push @rdel, _del_thingy($parent, $_, $self);
2133 } elsif ($sort eq 'C') {
2134 my (@nodes, @users);
2136 # we reset obscounts on config records as well as K records
2138 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2141 foreach my $r (@nent) {
2142 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2145 push @nodes, $r->[0];
2147 push @users, $r->[0];
2150 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2154 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2157 foreach my $r (@nent) {
2160 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2164 foreach my $r (@$dnodes) {
2165 push @rdel,_del_thingy($parent, [$r, 1], $self);
2167 foreach my $r (@$dusers) {
2168 push @rdel,_del_thingy($parent, [$r, 0], $self);
2171 # remember this last PC92C for rebroadcast on demand
2172 $parent->last_PC92C($line);
2174 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2178 foreach my $r (@rdel) {
2181 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2182 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2184 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2185 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2186 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2187 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2188 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2191 # broadcast it if we get here
2192 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2195 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2196 # might be on two or more nodes at the same time or that there may be more than
2197 # one equal distance neighbour to a node.
2199 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2200 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2201 # each and then combined to give a set of dxchans to send the PC9x record down
2203 sub find_pc9x_routes
2206 my $ref = Route::get($to);
2210 if ($ref->isa('Route::User')) {
2211 my $dxchan = DXChannel::get($to);
2212 push @parent, $to if $dxchan;
2213 push @parent, $ref->parents;
2217 foreach my $p (@parent) {
2219 my @routes = Route::findroutes($p);
2220 foreach my $r (@routes) {
2221 $lasthops = $r->[0] unless defined $lasthops;
2222 if ($r->[0] == $lasthops) {
2223 $cand{$r->[1]->call} = $r->[1];
2229 return values %cand;
2240 # $self->{do_pc9x} ||= 1;
2242 my $pcall = $pc->[1]; # this is now checked earlier
2244 # remember that we are converting PC10->PC93 and self will be $main::me if it
2246 unless ($self->{do_pc9x}) {
2247 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2252 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2254 my $to = uc $pc->[3];
2255 my $from = uc $pc->[4];
2256 my $via = uc $pc->[5];
2257 my $text = $pc->[6];
2258 my $onode = uc $pc->[7];
2259 $onode = $pcall if @$pc <= 8;
2261 # this is catch loops caused by bad software ...
2262 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2266 if (isdbg('progress')) {
2267 my $vs = $via ne '*' ? " via $via" : '';
2268 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2272 # will we allow it at all?
2275 if (@bad = BadWords::check($text)) {
2276 my $bw = join ', ', @bad;
2277 dbg($line) if isdbg('nologchan');
2278 dbg("PCPROT: Badwords: '$bw', dropped");
2283 # if this is a 'bad spotter' user then ignore it
2285 $nossid =~ s/-\d+$//;
2286 if ($badspotter->in($nossid)) {
2287 dbg($line) if isdbg('nologchan');
2288 dbg("PCPROT: Bad Spotter, dropped");
2292 # ignore PC93 coming in from outside this node with a target of local
2293 if ($to eq 'LOCAL' && $self != $main::me) {
2294 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2298 # if it is routeable then then treat it like a talk
2299 my $ref = Route::get($to);
2303 # convert to PC10 or local talks where appropriate
2304 # PC93 capable nodes of the same hop count all get a copy
2305 # if there is a PC10 node then it will get a copy and that
2306 # will be it. Hopefully such a node will not figure highly
2307 # in the route list, unless it is local, 'cos it don't issue PC92s!
2308 # note that both local and PC93s at the same time are possible if the
2309 # user on more than one node.
2310 my @routes = find_pc9x_routes($to);
2312 foreach $dxchan (@routes) {
2313 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2314 if ($dxchan->{do_pc9x}) {
2315 $dxchan->send($line);
2317 $dxchan->talk($from, $to, $via, $text, $onode);
2320 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2325 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2327 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2328 my $wx = $to eq 'WX' ? '1' : '0';
2329 my $local = $via eq 'LOCAL' ? '*' : $via;
2331 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2332 return if $via eq 'LOCAL';
2333 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2334 # chat messages really only locally connected users
2335 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2338 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2339 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2342 # if get here then rebroadcast the thing with its Hop count decremented (if
2343 # there is one). If it has a hop count and it decrements to zero then don't
2346 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2358 unless (eph_dup($line)) {
2360 my $pcall = $pc->[1];
2361 unless (is_callsign($pcall)) {
2362 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2366 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2367 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2369 unless ($self->{isolate}) {
2370 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me