3 # This module impliments the handlers for the protocal mode for a dx cluster
5 # Copyright (c) 1998-2007 Dirk Koopman G1TLH
39 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
40 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
41 $pingint $obscount %pc19list $chatdupeage $chatimportfn
42 $investigation_int $pc19_version $myprot_version
43 %nodehops $baddx $badspotter $badnode $censorpc
44 $allowzero $decode_dk0wcy $send_opernam @checklist
45 $eph_pc15_restime $pc9x_past_age $pc9x_dupe_age
46 $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
47 $pc92Ain $pc92Cin $pc92Din $pc92Kin $pc9x_time_tolerance
48 $pc92filterdef $senderverify
51 $pc9x_dupe_age = 60; # catch loops of circular (usually) D records
52 $pc10_dupe_age = 45; # just something to catch duplicate PC10->PC93 conversions
53 $pc92_slug_changes = 60*1; # slug any changes going outward for this long
54 $last_pc92_slug = 0; # the last time we sent out any delayed add or del PC92s
55 $pc9x_time_tolerance = 15*60; # the time on a pc9x is allowed to be out by this amount
56 $pc9x_past_age = (122*60)+ # maximum age in the past of a px9x (a config record might be the only
57 $pc9x_time_tolerance; # thing a node might send - once an hour and we allow an extra hour for luck)
58 # this is actually the partition between "yesterday" and "today" but old.
59 $senderverify = 0; # 1 - check for forged PC11 or PC61.
60 # 2 - if forged, dump them.
63 $pc92filterdef = bless ([
64 # tag, sort, field, priv, special parser
73 # this is a place to park an incoming PC11 in the sure and certain hope that
74 # a PC61 will be along soon. This has the side benefit that it will delay a
75 # a PC11 for one second - assuming that it is not removed by a PC61 version
77 # incoming talk commands
86 # this is to catch loops caused by bad software ...
87 if (eph_dup($line, $pc10_dupe_age)) {
91 # will we allow it at all?
94 if (@bad = BadWords::check($pc->[3])) {
95 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
100 # is it for me or one of mine?
101 my ($from, $to, $via, $call, $dxchan);
103 if ($pc->[5] gt ' ') {
110 # if this is a 'nodx' node then ignore it
111 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
112 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
116 # if this is a 'bad spotter' user then ignore it
118 $nossid =~ s/-\d+$//;
119 if ($badspotter->in($nossid)) {
120 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
124 # if we are converting announces to talk is it a dup?
126 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
127 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
132 # convert this to a PC93, coming from mycall with origin set and process it as such
133 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
148 my $recurse = shift || 0;
150 # route 'foreign' pc26s
152 if ($pc->[7] ne $main::mycall) {
153 $self->route($pc->[7], $line);
158 dbg("INPUT PC$pcno $line origin $origin recurse: $recurse") if isdbg("pc11");
160 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
162 # is the spotted callsign blank? This should really be trapped earlier but it
163 # could break other protocol sentences. Also check for lower case characters.
164 if ($pc->[2] =~ /^\s*$/) {
165 dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
168 if ($pc->[2] =~ /[a-z]/) {
169 dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
174 # if this is a 'nodx' node then ignore it
175 if ($badnode->in($pc->[7])) {
176 dbg("PCPROT: Bad Node $pc->[7], dropped") if isdbg('chanerr');
180 # if this is a 'bad spotter' or an unknown user then ignore it. BUT if it's got an IP address then allow it through
181 my $nossid = $pc->[6];
182 $nossid =~ s/-\d+$//;
183 if ($badspotter->in($nossid)) {
184 dbg("PCPROT: Bad Spotter $pc->[6], dropped") if isdbg('chanerr');
188 # convert the date to a unix date
189 my $d = cltounix($pc->[3], $pc->[4]);
190 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
191 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
192 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n") if isdbg('chanerr');
197 if ($baddx->in($pc->[2]) || BadWords::check($pc->[2])) {
198 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
203 $pc->[5] =~ s/^\s+//; # take any leading blanks off
204 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
205 if ($pc->[2] =~ /BUST\w*$/) {
206 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
211 if (@bad = BadWords::check($pc->[5])) {
212 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
218 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
220 # global spot filtering on INPUT
221 if ($self->{inspotsfilter}) {
222 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
224 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
229 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
231 my $key = join '|', @spot[0..2,4,7]; # not including text
235 if ($key eq $pc11_saved->[0]) {
236 dbg("saved PC11 spot $key dumped, better pc61 received") if isdbg("pc11");
243 if ($key eq $pc11_saved->[0]) {
244 dbg("saved PC11 spot $key, dupe pc11 received and dumped") if isdbg("pc11");
245 return; # because it's a dup
249 # can we promote this to a PC61?
250 my $r = Route::User::get($spot[4]); # find spotter
251 if ($r && $r->ip) { # do we have an ip addres
252 $pcno = 61; # now turn this into a PC61
254 dbg("PC11 spot $key promoted to pc61 ip $spot[14]") if isdbg("pc11");
259 if ($pc11_saved && $key ne $pc11_saved) {
260 dbg("saved PC11 spot $pc11_saved->[0] ne new key $key, recursing") if isdbg("pc11");
261 shift @$pc11_saved; # saved key
262 my $self = shift @$pc11_saved;
263 my @saved = @$pc11_saved;
265 $self->handle_11(@saved, 1);
268 # if we are still a PC11, save it for a better offer
270 $pc11_saved = [$key, $self, $pcno, $line, $origin, $pc];
271 $pc11_saved_time = $main::systime;
272 dbg("saved new PC11 spot $key for a better offer") if isdbg("pc11");
275 dbg("PC61 spot $key passed onward") if isdbg("pc11");
280 # this goes after the input filtering, but before the add
281 # so that if it is input filtered, it isn't added to the dup
282 # list. This allows it to come in from a "legitimate" source
283 if (Spot::dup(@spot[0..4,7])) {
284 dbg("PCPROT: Duplicate Spot $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot');
288 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
289 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
290 # to be current once we have seen the first PC92C from that node.
292 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
295 my $nroute = Route::Node::get($pc->[7]);
296 my $uroute = Route::Node::get($pc->[6]);
297 my $local = DXChannel::get($pc->[7]);
299 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
301 my $ip = $pcno == 61 ? $pc->[8] : '';
302 # $s .= "User $pc->[6] not logged in, " unless $uroute;
303 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
304 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
306 my $action = $senderverify > 1 ? ", DUMPED" : '';
308 dbg("PCProt: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
309 return unless $senderverify < 2;
314 # If is a new PC11, store it, releasing the one that is there (if any),
315 # if a PC61 comes along then dump the stored PC11
316 # If there is a different PC11 stored, release that one and store this PC11 instead,
322 $ip ||= $spot[14] if exists $spot[14];
323 if (isdbg('progress')) {
324 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
326 my $d = ztime($spot[2]);
327 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
328 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
329 $s .= " route: $origin";
334 # @spot at this point contains:-
335 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
336 # then spotted itu, spotted cq, spotters itu, spotters cq
337 # you should be able to route on any of these
340 # fix up qra locators of known users
341 my $user = DXUser::get_current($spot[4]);
343 my $qra = $user->qra;
344 unless ($qra && is_qra($qra)) {
345 my $lat = $user->lat;
346 my $long = $user->long;
347 if (defined $lat && defined $long) {
348 $user->qra(DXBearing::lltoqra($lat, $long));
353 # send a remote command to a distant cluster if it is visible and there is no
354 # qra locator and we havn't done it for a month.
356 unless ($user->qra) {
358 my $to = $user->homenode;
359 my $last = $user->lastoper || 0;
360 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
361 my $cmd = "forward/opernam $spot[4]";
362 # send the rcmd but we aren't interested in the replies...
363 my $dxchan = $node->dxchan;
364 if ($dxchan && $dxchan->is_clx) {
365 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
367 route(undef, $to, pc34($main::mycall, $to, $cmd));
369 if ($to ne $origin) {
371 $node = Route::Node::get($to);
373 $dxchan = $node->dxchan;
374 if ($dxchan && $dxchan->is_clx) {
375 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
377 route(undef, $to, pc34($main::mycall, $to, $cmd));
381 $user->lastoper($main::systime);
388 if (defined &Local::spot) {
391 $r = Local::spot($self, @spot);
396 # DON'T be silly and send on PC26s!
397 return if $pcno == 26;
399 # send out the filtered spots
400 send_dx_spot($self, $line, @spot) if @spot;
403 # used to kick outstanding PC11 if required
406 if ($pc11_saved && $main::systime > $pc11_saved_time) {
407 dbg("saved PC11 spot $pc11_saved->[0] timed out waiting, recursing") if isdbg("pc11");
408 shift @$pc11_saved; # saved key
409 my $self = shift @$pc11_saved;
410 my @saved = @$pc11_saved;
412 $self->handle_11(@saved, 1);
425 # announce duplicate checking
426 $pc->[3] =~ s/^\s+//; # remove leading blanks
430 if (@bad = BadWords::check($pc->[3])) {
431 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
436 # if this is a 'nodx' node then ignore it
437 if ($badnode->in($pc->[5])) {
438 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
442 # if this is a 'bad spotter' user then ignore it
443 my $nossid = $pc->[1];
444 $nossid =~ s/-\d+$//;
445 if ($badspotter->in($nossid)) {
446 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
450 # ignore PC12s from origins that use PCxx protocol
451 my $oref = Route::get($origin);
452 if ($oref->do_pc9x) {
453 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
459 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
460 $self->send_chat(0, $line, @$pc[1..6]);
461 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
463 # ignore something that looks like a chat line coming in with sysop
464 # flag - this is a kludge...
465 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
466 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
470 # here's a bit of fun, convert incoming ann with a callsign in the first word
471 # or one saying 'to <call>' to a talk if we can route to the recipient
473 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
475 my $ref = Route::get($call);
477 $dxchan = $ref->dxchan;
478 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
485 $self->send_announce(0, $line, @$pc[1..6]);
487 $self->route($pc->[2], $line);
491 if (defined &Local::ann) {
494 $r = Local::ann($self, $line, @$pc[1..6]);
508 if (eph_dup($line, $eph_pc15_restime)) {
511 unless ($self->{isolate}) {
512 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
528 my $ncall = $pc->[1];
529 my $newline = "PC16^";
531 # dos I want users from this channel?
532 unless ($self->user->wantpc16) {
533 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
538 if ($ncall eq $main::mycall) {
539 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
544 $h = 1 if DXChannel::get($ncall);
545 if ($h && $self->{call} ne $ncall) {
546 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
550 if (eph_dup($line)) {
554 # isolate now means only accept stuff from this call only
555 if ($self->{isolate} && $ncall ne $self->{call}) {
556 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
560 my $parent = Route::Node::get($ncall);
563 $dxchan = $parent->dxchan;
564 if ($dxchan && $dxchan ne $self) {
565 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
569 # input filter if required
570 return unless $self->in_filter_route($parent);
572 $parent = Route::Node->new($ncall);
576 if ($parent->via_pc92) {
577 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
584 for ($i = 2; $i < $#$pc; $i++) {
585 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
586 next unless $call && $conf && defined $here && is_callsign($call);
587 next if $call eq $main::mycall;
589 eph_del_regex("^PC17\\^$call\\^$ncall");
591 $conf = $conf eq '*';
593 # reject this if we think it is a node already
594 my $r = Route::Node::get($call);
595 my $u = DXUser::get_current($call) unless $r;
596 if ($r || ($u && $u->is_node)) {
597 dbg("PCPROT: $call is a node") if isdbg('chanerr');
601 $r = Route::User::get($call);
602 my $flags = Route::here($here)|Route::conf($conf);
605 my $au = $r->addparent($parent);
606 if ($r->flags != $flags) {
610 push @rout, $r if $h && $au;
612 my @ans = $parent->add_user($call, $flags);
613 push @rout, @ans if $h && @ans;
616 # add this station to the user database, if required
617 my $user = DXUser::get_current($ncall);
618 $user = DXUser->new($call) unless $user;
619 $user->homenode($parent->call) if !$user->homenode;
620 $user->node($parent->call);
621 $user->lastin($main::systime) unless DXChannel::get($call);
624 # send info to all logged in thingies
625 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
626 $self->tell_buddies('loginb', $call, $ncall);
629 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
630 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
644 my $ncall = $pc->[2];
645 my $ucall = $pc->[1];
647 eph_del_regex("^PC16\\^$ncall.*$ucall");
649 # do I want users from this channel?
650 unless ($self->user->wantpc16) {
651 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
655 if ($ncall eq $main::mycall) {
656 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
660 # isolate now means only accept stuff from this call only
661 if ($self->{isolate} && $ncall ne $self->{call}) {
662 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
666 my $uref = Route::User::get($ucall);
668 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
671 my $parent = Route::Node::get($ncall);
673 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
677 $dxchan = DXChannel::get($ncall);
678 if ($dxchan && $dxchan ne $self) {
679 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
684 if ($parent->via_pc92) {
685 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
690 if (DXChannel::get($ucall)) {
691 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
695 # input filter if required and then remove user if present
696 # return unless $self->in_filter_route($parent);
697 $parent->del_user($uref);
699 # send info to all logged in thingies
700 my $user = DXUser::get_current($ncall);
701 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
702 $self->tell_buddies('logoutb', $ucall, $ncall);
704 if (eph_dup($line)) {
708 $self->route_pc17($origin, $line, $parent, $uref);
709 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
721 $self->state('init');
723 my $parent = Route::Node::get($self->{call});
725 # record the type and version offered
726 if (my ($version) = $pc->[1] =~ /DXSpider Version: (\d+\.\d+)/) {
727 $self->{version} = 53 + $version;
728 $self->user->version(53 + $version);
729 $parent->version(0 + $version);
730 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
731 $self->{build} = 0 + $build;
732 $self->user->build(0 + $build);
733 $parent->build(0 + $build);
734 dbg("$self->{call} = DXSpider version $version build $build");
735 unless ($self->is_spider) {
736 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
737 $self->user->sort('S');
741 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
743 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
744 $self->version(50.0);
745 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
746 $self->user->version($self->version);
749 if ($pc->[1] =~ /\bpc9x/) {
750 if ($self->{isolate}) {
751 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
752 } elsif (!$self->user->wantpc9x) {
753 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
755 $self->{do_pc9x} = 1;
756 dbg("$self->{call} Set do PC9x");
760 # first clear out any nodes on this dxchannel
761 my @rout = $parent->del_nodes;
762 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
763 $self->send_local_config();
771 my $homenode = shift;
773 # add this station to the user database, if required (don't remove SSID from nodes)
774 my $user = DXUser::get_current($call);
776 $user = DXUser->new($call);
777 $user->sort($type || 'U');
778 if ($user->is_node) {
779 $user->priv(1); # I have relented and defaulted nodes
780 $user->lockout(1) if $user->is_node;
782 $user->homenode($homenode) if $homenode;
783 $user->node($homenode);
786 $user->lastin($main::systime); # this make it last longer than just this invocation
787 $user->put; # just to make sure it gets written away!!!
788 dbg("DXProt: PC92 new user record for $call created");
791 # this is to fix a problem I introduced some build ago by using this function for users
792 # whereas it was only being used for nodes.
793 if ($user->is_user && $user->lockout && ($user->priv // 0) == 1) {
796 dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
802 # incoming cluster list
812 my $newline = "PC19^";
815 my (@rout, @pc92out);
817 # first get the INTERFACE node
818 my $parent = Route::Node::get($self->{call});
820 dbg("PCPROT: my parent $self->{call} has disappeared");
829 # We are making a major change from now on. We are only going to accept
830 # PC19s from directly connected nodes. This means that we are probably
831 # going to throw away most of the data that we are being sent.
833 # The justification for this is that most of it is wrong or out of date
836 # From now on we are only going to believe PC92 data and locally connected
839 for ($i = 1; $i < $#$pc-1; $i += 4) {
840 my $here = $pc->[$i];
841 my $call = uc $pc->[$i+1];
842 my $conf = $pc->[$i+2];
843 my $ver = $pc->[$i+3];
844 next unless defined $here && defined $conf && is_callsign($call);
846 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
848 # check for sane parameters
849 # $ver = 5000 if $ver eq '0000';
850 next unless $ver && $ver =~ /^\d+$/;
851 next if $ver < 5000; # only works with version 5 software
852 next if length $call < 3; # min 3 letter callsigns
853 next if $call eq $main::mycall || $call eq $main::myalias;
855 # check that this PC19 isn't trying to alter the wrong dxchan
857 my $dxchan = DXChannel::get($call);
859 if ($dxchan == $self) {
862 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
867 # isolate now means only accept stuff from this call only
868 if ($self->{isolate} && $call ne $self->{call}) {
869 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
873 my $user = check_add_user($call, 'A');
875 # if (eph_dup($genline)) {
876 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
882 if ($parent->via_pc92) {
883 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
888 my $r = Route::Node::get($call);
889 my $flags = Route::here($here)|Route::conf($conf);
891 # modify the routing table if it is in it, otherwise store it in the pc19list for now
894 if ($call ne $parent->call) {
895 if ($self->in_filter_route($r)) {
896 $ar = $parent->add($call, $ver, $flags);
897 # push @rout, $ar if $ar;
902 if ($r->version ne $ver || $r->flags != $flags) {
908 if ($call eq $self->{call} || $user->wantroutepc19) {
909 my $new = Route->new($call); # throw away
910 if ($self->in_filter_route($new)) {
911 my $ar = $parent->add($call, $ver, $flags);
912 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
913 push @rout, $ar if $ar;
914 push @pc92out, $r if $h;
921 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
922 my $mref = DXMsg::get_busy($call);
923 $mref->stop_msg($call) if $mref;
925 $user->lastin($main::systime) unless DXChannel::get($call);
929 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
930 # but remember there will only be one (pair) these because any extras will be
933 # $self->route_pc21($self->{call}, $line, @rout);
934 $self->route_pc19($self->{call}, $line, @rout);
936 if (@pc92out && !$pc92_slug_changes) {
937 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
941 # send local configuration
950 if ($self->{do_pc9x} && $self->{state} ne 'init92') {
951 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
952 $self->{do_pc9x} = 0;
954 $self->send_local_config;
956 $self->state('normal');
957 $self->{lastping} = 0;
958 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
961 # delete a cluster from the list
963 # This should never occur for directly connected nodes.
973 my $call = uc $pc->[1];
975 eph_del_regex("^PC1[679].*$call");
977 # if I get a PC21 from the same callsign as self then ignore it
978 if ($call eq $self->{call}) {
979 dbg("PCPROT: self referencing PC21 from $self->{call}");
983 # for the above reason and also because of the check for PC21s coming
984 # in for self->call from outside being ignored further down
985 # we don't need any isolation code here, because we will never
986 # act on a PC21 with self->call in it.
988 my $parent = Route::Node::get($self->{call});
990 dbg("PCPROT: my parent $self->{call} has disappeared");
997 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
998 my $node = Route::Node::get($call);
1001 if ($node->via_pc92) {
1002 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1006 my $dxchan = DXChannel::get($call);
1007 if ($dxchan && $dxchan != $self) {
1008 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1013 return unless $self->in_filter_route($node);
1015 # routing objects, force a PC21 if it is local
1016 push @rout, $node->del($parent);
1017 push @rout, $call if $dxchan && @rout == 0;
1020 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1024 if (eph_dup($line)) {
1029 $self->route_pc21($origin, $line, @rout);
1030 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1043 if ($self->{do_pc9x}) {
1044 if ($self->{state} ne 'init92') {
1045 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1046 $self->{do_pc9x} = 0;
1049 $self->{lastping} = 0;
1050 $self->state('normal');
1051 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1063 # route foreign' pc27s
1065 if ($pc->[8] ne $main::mycall) {
1066 $self->route($pc->[8], $line);
1073 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1074 my $sfi = unpad($pc->[3]);
1075 my $k = unpad($pc->[4]);
1076 my $i = unpad($pc->[5]);
1077 my ($r) = $pc->[6] =~ /R=(\d+)/;
1079 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1080 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1084 # global wwv filtering on INPUT
1085 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1086 if ($self->{inwwvfilter}) {
1087 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1089 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1093 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1094 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1095 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1099 # note this only takes the first one it gets
1100 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1101 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1103 if (defined &Local::wwv) {
1106 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1111 # DON'T be silly and send on PC27s!
1112 return if $pcno == 27;
1114 # broadcast to the eager world
1115 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1127 my $call = uc $pc->[1];
1129 $nref = Route::Node::get($call);
1130 $uref = Route::User::get($call);
1131 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1133 if (eph_dup($line)) {
1137 $nref->here($pc->[2]) if $nref;
1138 $uref->here($pc->[2]) if $uref;
1139 my $ref = $nref || $uref;
1140 return unless $self->in_filter_route($ref);
1142 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1154 if ($pc->[1] ne $main::mycall) {
1155 $self->route($pc->[1], $line);
1158 if ($pc->[2] eq $main::mycall) {
1159 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1163 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1167 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1170 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1176 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1179 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1184 sub handle_26 {goto &handle_11}
1185 sub handle_27 {goto &handle_23}
1187 # mail/file handling
1196 if ($pc->[1] eq $main::mycall) {
1198 my $sub = "DXMsg::handle_$pcno";
1201 $self->route($pc->[1], $line) unless $self->is_clx;
1205 sub handle_29 {goto &handle_28}
1206 sub handle_30 {goto &handle_28}
1207 sub handle_31 {goto &handle_28}
1208 sub handle_32 {goto &handle_28}
1209 sub handle_33 {goto &handle_28}
1219 if (eph_dup($line, $eph_pc34_restime)) {
1222 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1226 # remote command replies
1235 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1236 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1239 sub handle_36 {goto &handle_34}
1250 if ($pc->[1] eq $main::mycall) {
1252 my $sub = "DXDb::handle_$pcno";
1255 $self->route($pc->[1], $line) unless $self->is_clx;
1259 # node connected list from neighbour
1269 # incoming disconnect
1278 if ($pc->[1] eq $self->{call}) {
1279 $self->disconnect(1);
1281 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1285 sub handle_40 {goto &handle_28}
1296 my $call = $pc->[1];
1297 my $sort = $pc->[2];
1300 my $l = "PC41^$call^$sort";
1301 if (eph_dup($l, $eph_info_restime)) {
1305 # input filter if required
1306 # my $ref = Route::get($call) || Route->new($call);
1307 # return unless $self->in_filter_route($ref);
1309 if ($val eq $sort || $val =~ /^\s*$/) {
1310 dbg('PCPROT: invalid value') if isdbg('chanerr');
1314 if ($call eq $main::mycall || $call eq $main::myalias) {
1315 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1318 my $chan = DXChannel::get($call);
1320 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1324 # add this station to the user database, if required
1325 my $user = DXUser::get_current($call);
1326 $user = DXUser->new($call) unless $user;
1329 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1330 dbg("PCPROT: invalid name") if isdbg('chanerr');
1334 } elsif ($sort == 2) {
1336 } elsif ($sort == 3) {
1337 if (is_latlong($val)) {
1338 my ($lat, $long) = DXBearing::stoll($val);
1339 $user->lat($lat) if $lat;
1340 $user->long($long) if $long;
1341 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1343 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1346 } elsif ($sort == 4) {
1347 $user->homenode($val);
1348 } elsif ($sort == 5) {
1349 if (is_qra(uc $val)) {
1350 my ($lat, $long) = DXBearing::qratoll(uc $val);
1351 $user->lat($lat) if $lat && !$user->lat;
1352 $user->long($long) if $long && !$user->long;
1353 $user->qra(uc $val);
1355 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1359 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1362 unless ($self->{isolate}) {
1363 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1366 # perhaps this IS what we want after all
1367 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1370 sub handle_42 {goto &handle_28}
1374 sub handle_44 {goto &handle_37}
1375 sub handle_45 {goto &handle_37}
1376 sub handle_46 {goto &handle_37}
1377 sub handle_47 {goto &handle_37}
1378 sub handle_48 {goto &handle_37}
1380 # message and database
1389 if (eph_dup($line)) {
1393 if ($pc->[1] eq $main::mycall) {
1394 DXMsg::handle_49($self, @$pc);
1396 $self->route($pc->[1], $line) unless $self->is_clx;
1400 # keep alive/user list
1409 return if (eph_dup($line));
1411 my $call = $pc->[1];
1413 my $node = Route::Node::get($call);
1415 return unless $node->call eq $self->{call};
1416 $node->usercount($pc->[2]) unless $node->users;
1418 $node->PC92C_dxchan($self->call, $pc->[-1]);
1420 # input filter if required
1421 # return unless $self->in_filter_route($node);
1423 unless ($self->{isolate}) {
1424 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1426 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1430 # incoming ping requests/answers
1440 my $from = $pc->[2];
1441 my $flag = $pc->[3];
1443 if ($to eq $main::myalias) {
1444 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1449 if ($to eq $main::mycall) {
1451 $self->send(pc51($from, $to, '0'));
1453 DXXml::Ping::handle_ping_reply($self, $from);
1456 if (eph_dup($line)) {
1459 # route down an appropriate thingy
1460 $self->route($to, $line);
1464 sub handle_61 { goto &handle_11; }
1466 # dunno but route it
1475 my $call = $pc->[1];
1476 if ($call ne $main::mycall) {
1477 $self->route($call, $line);
1490 my $call = $pc->[1];
1493 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1494 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1495 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1498 $pc = [ map { unpad($_) } @$pc ];
1500 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1504 my $wcy = WCY::update($d, @$pc[2..12]);
1505 dbg("WCY: <$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');
1507 if (defined &Local::wcy) {
1510 $rep = Local::wcy($self, @$pc[1..12]);
1515 # broadcast to the eager world
1516 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1519 # remote commands (incoming)
1528 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1531 # remote command replies
1540 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1543 # decode a pc92 call: flag call : version : build
1544 sub _decode_pc92_call
1547 my @part = split /:/, $icall;
1548 my ($flag, $call) = unpack "A A*", $part[0];
1549 unless (defined $flag && $flag ge '0' && $flag le '7') {
1550 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1553 unless ($call && is_callsign($call)) {
1554 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1557 my $is_node = $flag & 4;
1558 my $is_extnode = $flag & 2;
1559 my $here = $flag & 1;
1560 my $version = $part[1] || 0;
1561 my $build = $part[2] || 0;
1562 my $ip = $part[3] || '';
1564 if ($version =~ /[,.]/) {
1568 $version =~ s/\D+//g;
1571 $ip =~ s/,/:/g if $ip;
1572 return ($call, $is_node, $is_extnode, $here, $version+0, $build+0, $ip);
1575 # decode a pc92 call: flag call : version : build
1576 sub _encode_pc92_call
1580 # plain call or value
1581 return $ref unless ref $ref;
1583 my $ext = shift || 0;
1585 my $call = $ref->call;
1587 $flag |= $ref->here ? 1 : 0;
1588 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1590 my $dxchan = DXChannel::get($call);
1591 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1592 if (($ext & 1) && $ref->version) {
1593 my $version = $ref->version || 1.0;
1594 $version = $version * 100 + 5300 if $version < 50;
1595 $extra .= ":" . $version;
1598 if (($ext & 2) && $ref->ip) {
1601 $extra .= ':' . $ip;
1603 return "$flag$call$extra";
1616 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1619 # remove spurious IPV6 prefix on IPV4 addresses
1620 $ip =~ s/^::ffff:// if $ip;
1625 my $ncall = $parent->call;
1626 if ($ncall ne $call) {
1630 # normalise call, delete any unnormalised calls in the users file.
1631 # then ignore this thingy
1632 my $normcall = normalise_call($call);
1633 if ($normcall ne $call) {
1634 next if DXChannel::get($call);
1635 $user = DXUser::get($call);
1636 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1637 $user->del if $user;
1638 $call = $normcall; # this is safe because a route add will ignore duplicates
1642 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1643 $user = check_add_user($call, 'A');
1644 @rout = $parent->add($call, $version, Route::here($here), $ip);
1645 $r = Route::Node::get($call);
1646 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1647 if ($version && $version =~ /^\d+$/) {
1648 my $old = $user->sort;
1649 if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1651 dbg("PCProt::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1652 } elsif ($user->is_spider && $version =~ /^\d+$/ && ($version < 3000 || ($version > 4000 && $version < 5455))) {
1653 unless ($version == 5000 && $build == 0) {
1656 dbg("PCProt::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1661 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1662 $user = check_add_user($call, 'U', $parent->call);
1663 @rout = $parent->add_user($call, Route::here($here), $ip);
1664 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1665 $r = Route::User::get($call);
1669 Log('DXProt', "PC92A $call -> $ip on $ncall");
1671 if ($pc92_slug_changes && $parent == $main::routeroot) {
1672 $things_add{$call} = Route::get($call);
1673 delete $things_del{$call};
1675 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1677 dbgprintring(10) if isdbg('nologchan');
1678 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1690 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1695 $ref = Route::Node::get($call);
1696 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1697 @rout = $ref->del($parent) if $ref;
1699 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1700 $ref = Route::User::get($call);
1702 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1703 @rout = $parent->del_user($ref);
1706 if ($pc92_slug_changes && $parent == $main::routeroot) {
1707 $things_del{$call} = $ref unless exists $things_add{$call};
1708 delete $things_add{$call};
1714 # this will only happen if we are slugging changes and
1715 # there are some changes to be sent, it will create an add or a delete
1717 sub gen_pc92_changes
1719 my @add = values %things_add;
1720 my @del = values %things_del;
1721 return (\@add, \@del);
1724 sub clear_pc92_changes
1726 %things_add = %things_del = ();
1727 $last_pc92_slug = $main::systime;
1736 return $_last_pc9x_id;
1741 if (!$_last_time || $_last_time != $main::systime) {
1742 $_last_time = $main::systime;
1744 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1747 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1758 # check that the time is between 0 >= $t < 86400
1759 unless ($t >= 0 && $t < 86400) {
1760 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1764 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1765 my $now = $main::systime - $main::systime_daystart ;
1766 my $diff = abs($now - $t);
1767 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1768 my $c = ref $call ? $call->call : $call;
1769 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1773 my $parent = ref $call ? $call : Route::Node::get($call);
1775 # we only do this for external calls whose routing table
1776 # record come and go. The reference for mycall is permanent
1777 # and not that frequently used, it also never times out, so
1778 # the id on it is completely unreliable. Besides, only commands
1779 # originating on this box will go through this code...
1780 if ($parent->call ne $main::mycall) {
1781 my $lastid = $parent->lastid;
1782 if (defined $lastid) {
1784 # note that this is where we determine whether this pc9x has come in yesterday
1785 # but is still greater (modulo 86400) than the lastid or is simply an old
1786 # duplicate sentence. To determine this we need to do some module 86400
1787 # arithmetic. High numbers mean that this is an old duplicate sentence,
1788 # low numbers that it is a new sentence.
1790 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1791 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1792 # 86378 respectively in the calculation below).
1794 if ($t+86400-$lastid > $pc9x_past_age) {
1795 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1798 } elsif ($t == $lastid) {
1799 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1802 # check that if we have a low number in lastid that yesterday's numbers
1803 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1804 if ($lastid+86400-$t < $pc9x_past_age) {
1805 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1812 $parent = Route::Node->new($call);
1814 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1817 if (isdbg('pc92dedupe')) {
1818 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1819 my $val = $parent->{lastid};
1820 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1821 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1823 $parent->lastid($t);
1828 sub pc92_handle_first_slot
1835 my $oparent = $parent;
1839 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1840 if ($call && $is_node) {
1841 if ($call eq $main::mycall) {
1842 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
1845 if ($call eq $main::myalias) {
1846 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
1849 # this is only accepted from my "self".
1850 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1851 # locally connected. Local nodes always take precedence. But we remember the lastid
1852 # to try to reduce the number of dupe PC92s for this external node.
1853 if (DXChannel::get($call) && $call ne $self->{call}) {
1854 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1855 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1859 # reparent to external node (note that we must have received a 'C' or 'A' record
1860 # from the true parent node for this external before we get one for the this node
1861 unless ($parent = Route::Node::get($call)) {
1862 if ($is_extnode && $oparent) {
1863 @radd = _add_thingy($oparent, $slot, $self, $hops);
1866 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1870 $parent = check_pc9x_t($call, $t, 92) || return;
1871 $parent->via_pc92(1);
1872 $parent->PC92C_dxchan($self->{call}, $hops);
1875 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1878 $parent->here(Route::here($here));
1879 $parent->version($version || $pc19_version) if $version;
1880 $parent->build($build) if $build;
1881 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1882 return ($parent, @radd);
1885 # DXSpider routing entries
1896 my $pcall = $pc->[1];
1898 my $sort = $pc->[3];
1899 my $hops = $pc->[-1];
1901 # this catches loops of A/Ds
1902 # if (eph_dup($line, $pc9x_dupe_age)) {
1906 if ($pcall eq $main::mycall) {
1907 LogDbg('err', "PCPROT: looped back, ignored");
1911 if ($pcall eq $main::myalias) {
1912 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
1916 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
1917 if ($self->{isolate}) {
1918 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
1920 } elsif (!$self->user->wantpc9x) {
1921 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
1924 $self->state('init92');
1925 $self->{do_pc9x} = 1;
1926 dbg("DXPROT: Do pc9x set on $pcall");
1929 unless ($self->{do_pc9x}) {
1930 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1934 # don't create routing entries for D records that don't already exist
1935 # this is what causes all those PC92 loops!
1936 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
1937 my $oparent = $parent;
1939 $parent->do_pc9x(1);
1940 $parent->via_pc92(1);
1942 if ($sort eq 'F' || $sort eq 'R') {
1944 # this is the route finding section
1945 # here is where the consequences of the 'find' command
1948 my $from = $pc->[4];
1949 my $target = $pc->[5];
1955 if ($ref = DXChannel::get($target)) {
1956 $flag = 1; # we are directly connected
1958 $ref = Route::get($target);
1959 $dxchan = $ref->dxchan;
1962 if ($ref && $flag && $dxchan) {
1963 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
1966 } elsif ($sort eq 'R') {
1967 if (my $dxchan = DXChannel::get($from)) {
1968 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
1970 my $ref = Route::get($from);
1972 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
1974 $_->send($line) for @dxchan;
1976 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
1979 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
1985 } elsif ($sort eq 'K') {
1986 $pc92Kin += length $line;
1988 # remember the last channel we arrived on
1989 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1991 my @ent = _decode_pc92_call($pc->[4]);
1996 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
1997 return unless $parent; # dupe
1999 push @radd, $add if $add;
2001 my $call = $parent->call;
2002 my $version = $ent[4] || 0;
2003 my $build = $ent[5] || 0;
2004 my $oldbuild = $parent->build || 0;
2005 my $oldversion = $parent->version || 0;
2006 my $user = check_add_user($parent->call, 'S');
2007 my $oldsort = $user->sort // '';
2008 # if ($version =~ /^\d+$/ && $oldversion =~ /^\d+$/) {
2009 if ($oldsort ne 'S' || $oldversion != $version || $build != $oldbuild) {
2010 dbg("PCProt PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild) sort: 'S' (was $oldsort)");
2012 $user->version($parent->version($version));
2013 $user->build($parent->build($build));
2017 # dbg("DXProt PC92 K version strings new: '$version' old: '$oldversion'");
2019 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2021 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2023 $pc92Ain += length $line if $sort eq 'A';
2024 $pc92Cin += length $line if $sort eq 'C';
2025 $pc92Din += length $line if $sort eq 'D';
2027 # remember the last channel we arrived on
2028 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2030 # this is the main route section
2031 # here is where all the routes are created and destroyed
2033 # cope with missing duplicate node calls in the first slot
2034 my $me = $pc->[4] || '';
2035 $me ||= _encode_pc92_call($parent) unless $me ;
2037 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2041 # look at the first one which will always be a node of some sort
2042 # except in the case of 'A' or 'D' in which the $pcall is used
2043 # otherwise use the node call and update any information
2044 # that needs to be done.
2047 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2048 return unless $parent; # dupe
2051 push @radd, $add if $add;
2054 # do a pass through removing any references to either mycall
2058 next unless $_ && @$_;
2059 if ($_->[0] eq $main::mycall) {
2060 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2063 if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
2064 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2073 push @radd, _add_thingy($parent, $_, $self, $hops);
2075 } elsif ($sort eq 'D') {
2077 push @rdel, _del_thingy($parent, $_, $self);
2079 } elsif ($sort eq 'C') {
2080 my (@nodes, @users);
2082 # we reset obscounts on config records as well as K records
2084 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2087 foreach my $r (@nent) {
2088 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2091 push @nodes, $r->[0];
2093 push @users, $r->[0];
2096 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2100 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2103 foreach my $r (@nent) {
2106 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2110 foreach my $r (@$dnodes) {
2111 push @rdel,_del_thingy($parent, [$r, 1], $self);
2113 foreach my $r (@$dusers) {
2114 push @rdel,_del_thingy($parent, [$r, 0], $self);
2117 # remember this last PC92C for rebroadcast on demand
2118 $parent->last_PC92C($line);
2120 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2124 foreach my $r (@rdel) {
2127 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2128 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2130 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2131 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2132 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2133 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2134 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2137 # broadcast it if we get here
2138 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2141 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2142 # might be on two or more nodes at the same time or that there may be more than
2143 # one equal distance neighbour to a node.
2145 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2146 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2147 # each and then combined to give a set of dxchans to send the PC9x record down
2149 sub find_pc9x_routes
2152 my $ref = Route::get($to);
2156 if ($ref->isa('Route::User')) {
2157 my $dxchan = DXChannel::get($to);
2158 push @parent, $to if $dxchan;
2159 push @parent, $ref->parents;
2163 foreach my $p (@parent) {
2165 my @routes = Route::findroutes($p);
2166 foreach my $r (@routes) {
2167 $lasthops = $r->[0] unless defined $lasthops;
2168 if ($r->[0] == $lasthops) {
2169 $cand{$r->[1]->call} = $r->[1];
2175 return values %cand;
2186 # $self->{do_pc9x} ||= 1;
2188 my $pcall = $pc->[1]; # this is now checked earlier
2190 # remember that we are converting PC10->PC93 and self will be $main::me if it
2192 unless ($self->{do_pc9x}) {
2193 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2198 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2200 my $to = uc $pc->[3];
2201 my $from = uc $pc->[4];
2202 my $via = uc $pc->[5];
2203 my $text = $pc->[6];
2204 my $onode = uc $pc->[7];
2205 $onode = $pcall if @$pc <= 8;
2207 # this is catch loops caused by bad software ...
2208 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2212 if (isdbg('progress')) {
2213 my $vs = $via ne '*' ? " via $via" : '';
2214 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2218 # will we allow it at all?
2221 if (@bad = BadWords::check($text)) {
2222 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
2227 # if this is a 'bad spotter' user then ignore it
2229 $nossid =~ s/-\d+$//;
2230 if ($badspotter->in($nossid)) {
2231 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
2235 # ignore PC93 coming in from outside this node with a target of local
2236 if ($to eq 'LOCAL' && $self != $main::me) {
2237 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2241 # if it is routeable then then treat it like a talk
2242 my $ref = Route::get($to);
2246 # convert to PC10 or local talks where appropriate
2247 # PC93 capable nodes of the same hop count all get a copy
2248 # if there is a PC10 node then it will get a copy and that
2249 # will be it. Hopefully such a node will not figure highly
2250 # in the route list, unless it is local, 'cos it don't issue PC92s!
2251 # note that both local and PC93s at the same time are possible if the
2252 # user on more than one node.
2253 my @routes = find_pc9x_routes($to);
2255 foreach $dxchan (@routes) {
2256 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2257 if ($dxchan->{do_pc9x}) {
2258 $dxchan->send($line);
2260 $dxchan->talk($from, $to, $via, $text, $onode);
2263 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2268 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2270 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2271 my $wx = $to eq 'WX' ? '1' : '0';
2272 my $local = $via eq 'LOCAL' ? '*' : $via;
2274 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2275 return if $via eq 'LOCAL';
2276 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2277 # chat messages really only locally connected users
2278 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2281 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2282 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2285 # if get here then rebroadcast the thing with its Hop count decremented (if
2286 # there is one). If it has a hop count and it decrements to zero then don't
2289 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2301 unless (eph_dup($line)) {
2303 my $pcall = $pc->[1];
2304 unless (is_callsign($pcall)) {
2305 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2309 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2310 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2312 unless ($self->{isolate}) {
2313 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me