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 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
101 # is it for me or one of mine?
102 my ($from, $to, $via, $call, $dxchan);
104 if ($pc->[5] gt ' ') {
111 # if this is a 'nodx' node then ignore it
112 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
113 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
117 # if this is a 'bad spotter' user then ignore it
119 $nossid =~ s/-\d+$//;
120 if ($badspotter->in($nossid)) {
121 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
125 # if we are converting announces to talk is it a dup?
127 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
128 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
133 # convert this to a PC93, coming from mycall with origin set and process it as such
134 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
149 my $recurse = shift || 0;
151 # route 'foreign' pc26s
153 if ($pc->[7] ne $main::mycall) {
154 $self->route($pc->[7], $line);
159 dbg("INPUT PC$pcno $line origin $origin recurse: $recurse") if isdbg("pc11");
161 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
163 # is the spotted callsign blank? This should really be trapped earlier but it
164 # could break other protocol sentences. Also check for lower case characters.
165 if ($pc->[2] =~ /^\s*$/) {
166 dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
169 if ($pc->[2] =~ /[a-z]/) {
170 dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
175 # if this is a 'nodx' node then ignore it
176 if ($badnode->in($pc->[7])) {
177 dbg("PCPROT: Bad Node $pc->[7], dropped") if isdbg('chanerr');
181 # 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
182 my $nossid = $pc->[6];
183 $nossid =~ s/-\d+$//;
184 if ($badspotter->in($nossid)) {
185 dbg("PCPROT: Bad Spotter $pc->[6], dropped") if isdbg('chanerr');
190 if ($pc->[8] && is_ipaddr($pc->[8])) {
194 if (DXCIDR::find($ip)) {
199 # convert the date to a unix date
200 my $d = cltounix($pc->[3], $pc->[4]);
201 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
202 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
203 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n") if isdbg('chanerr');
208 if ($baddx->in($pc->[2]) || BadWords::check($pc->[2])) {
209 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
214 $pc->[5] =~ s/^\s+//; # take any leading blanks off
215 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
216 if ($pc->[2] =~ /BUST\w*$/) {
217 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
222 if (@bad = BadWords::check($pc->[5])) {
223 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
229 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
231 # global spot filtering on INPUT
232 if ($self->{inspotsfilter}) {
233 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
235 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
240 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
242 my $key = join '|', @spot[0..2,4,7]; # not including text
246 if ($key eq $pc11_saved->[0]) {
247 dbg("saved PC11 spot $key dumped, better pc61 received") if isdbg("pc11");
254 if ($key eq $pc11_saved->[0]) {
255 dbg("saved PC11 spot $key, dupe pc11 received and dumped") if isdbg("pc11");
256 return; # because it's a dup
260 # can we promote this to a PC61?
261 my $r = Route::User::get($spot[4]); # find spotter
262 if ($r && $r->ip) { # do we have an ip addres
263 $pcno = 61; # now turn this into a PC61
265 dbg("PC11 spot $key promoted to pc61 ip $spot[14]") if isdbg("pc11");
270 if ($pc11_saved && $key ne $pc11_saved) {
271 dbg("saved PC11 spot $pc11_saved->[0] ne new key $key, recursing") if isdbg("pc11");
272 shift @$pc11_saved; # saved key
273 my $self = shift @$pc11_saved;
274 my @saved = @$pc11_saved;
276 $self->handle_11(@saved, 1);
279 # if we are still a PC11, save it for a better offer
281 $pc11_saved = [$key, $self, $pcno, $line, $origin, $pc];
282 $pc11_saved_time = $main::systime;
283 dbg("saved new PC11 spot $key for a better offer") if isdbg("pc11");
286 dbg("PC61 spot $key passed onward") if isdbg("pc11");
291 # this goes after the input filtering, but before the add
292 # so that if it is input filtered, it isn't added to the dup
293 # list. This allows it to come in from a "legitimate" source
294 if (Spot::dup(@spot[0..4,7])) {
295 dbg("PCPROT: Duplicate Spot $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot');
299 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
300 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
301 # to be current once we have seen the first PC92C from that node.
303 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
306 my $nroute = Route::Node::get($pc->[7]);
307 my $uroute = Route::Node::get($pc->[6]);
308 my $local = DXChannel::get($pc->[7]);
310 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
312 my $ip = $pcno == 61 ? $pc->[8] : '';
313 # $s .= "User $pc->[6] not logged in, " unless $uroute;
314 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
315 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
317 my $action = $senderverify > 1 ? ", DUMPED" : '';
319 dbg("PCProt: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
320 return unless $senderverify < 2;
325 # If is a new PC11, store it, releasing the one that is there (if any),
326 # if a PC61 comes along then dump the stored PC11
327 # If there is a different PC11 stored, release that one and store this PC11 instead,
333 $ip ||= $spot[14] if exists $spot[14];
334 if (isdbg('progress')) {
335 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
337 my $d = ztime($spot[2]);
338 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
339 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
340 $s .= " route: $origin";
345 # @spot at this point contains:-
346 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
347 # then spotted itu, spotted cq, spotters itu, spotters cq
348 # you should be able to route on any of these
351 # fix up qra locators of known users
352 my $user = DXUser::get_current($spot[4]);
354 my $qra = $user->qra;
355 unless ($qra && is_qra($qra)) {
356 my $lat = $user->lat;
357 my $long = $user->long;
358 if (defined $lat && defined $long) {
359 $user->qra(DXBearing::lltoqra($lat, $long));
364 # send a remote command to a distant cluster if it is visible and there is no
365 # qra locator and we havn't done it for a month.
367 unless ($user->qra) {
369 my $to = $user->homenode;
370 my $last = $user->lastoper || 0;
371 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
372 my $cmd = "forward/opernam $spot[4]";
373 # send the rcmd but we aren't interested in the replies...
374 my $dxchan = $node->dxchan;
375 if ($dxchan && $dxchan->is_clx) {
376 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
378 route(undef, $to, pc34($main::mycall, $to, $cmd));
380 if ($to ne $origin) {
382 $node = Route::Node::get($to);
384 $dxchan = $node->dxchan;
385 if ($dxchan && $dxchan->is_clx) {
386 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
388 route(undef, $to, pc34($main::mycall, $to, $cmd));
392 $user->lastoper($main::systime);
399 if (defined &Local::spot) {
402 $r = Local::spot($self, @spot);
407 # DON'T be silly and send on PC26s!
408 return if $pcno == 26;
410 # send out the filtered spots
411 send_dx_spot($self, $line, @spot) if @spot;
414 # used to kick outstanding PC11 if required
417 if ($pc11_saved && $main::systime > $pc11_saved_time) {
418 dbg("saved PC11 spot $pc11_saved->[0] timed out waiting, recursing") if isdbg("pc11");
419 shift @$pc11_saved; # saved key
420 my $self = shift @$pc11_saved;
421 my @saved = @$pc11_saved;
423 $self->handle_11(@saved, 1);
436 # announce duplicate checking
437 $pc->[3] =~ s/^\s+//; # remove leading blanks
441 if (@bad = BadWords::check($pc->[3])) {
442 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
447 # if this is a 'nodx' node then ignore it
448 if ($badnode->in($pc->[5])) {
449 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
453 # if this is a 'bad spotter' user then ignore it
454 my $nossid = $pc->[1];
455 $nossid =~ s/-\d+$//;
456 if ($badspotter->in($nossid)) {
457 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
461 # ignore PC12s from origins that use PCxx protocol
462 my $oref = Route::get($origin);
463 if ($oref->do_pc9x) {
464 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
470 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
471 $self->send_chat(0, $line, @$pc[1..6]);
472 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
474 # ignore something that looks like a chat line coming in with sysop
475 # flag - this is a kludge...
476 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
477 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
481 # here's a bit of fun, convert incoming ann with a callsign in the first word
482 # or one saying 'to <call>' to a talk if we can route to the recipient
484 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
486 my $ref = Route::get($call);
488 $dxchan = $ref->dxchan;
489 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
496 $self->send_announce(0, $line, @$pc[1..6]);
498 $self->route($pc->[2], $line);
502 if (defined &Local::ann) {
505 $r = Local::ann($self, $line, @$pc[1..6]);
519 if (eph_dup($line, $eph_pc15_restime)) {
522 unless ($self->{isolate}) {
523 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
539 my $ncall = $pc->[1];
540 my $newline = "PC16^";
542 # dos I want users from this channel?
543 unless ($self->user->wantpc16) {
544 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
549 if ($ncall eq $main::mycall) {
550 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
555 $h = 1 if DXChannel::get($ncall);
556 if ($h && $self->{call} ne $ncall) {
557 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
561 if (eph_dup($line)) {
565 # isolate now means only accept stuff from this call only
566 if ($self->{isolate} && $ncall ne $self->{call}) {
567 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
571 my $parent = Route::Node::get($ncall);
574 $dxchan = $parent->dxchan;
575 if ($dxchan && $dxchan ne $self) {
576 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
580 # input filter if required
581 return unless $self->in_filter_route($parent);
583 $parent = Route::Node->new($ncall);
587 if ($parent->via_pc92) {
588 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
595 for ($i = 2; $i < $#$pc; $i++) {
596 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
597 next unless $call && $conf && defined $here && is_callsign($call);
598 next if $call eq $main::mycall;
600 eph_del_regex("^PC17\\^$call\\^$ncall");
602 $conf = $conf eq '*';
604 # reject this if we think it is a node already
605 my $r = Route::Node::get($call);
606 my $u = DXUser::get_current($call) unless $r;
607 if ($r || ($u && $u->is_node)) {
608 dbg("PCPROT: $call is a node") if isdbg('chanerr');
612 $r = Route::User::get($call);
613 my $flags = Route::here($here)|Route::conf($conf);
616 my $au = $r->addparent($parent);
617 if ($r->flags != $flags) {
621 push @rout, $r if $h && $au;
623 my @ans = $parent->add_user($call, $flags);
624 push @rout, @ans if $h && @ans;
627 # add this station to the user database, if required
628 my $user = DXUser::get_current($ncall);
629 $user = DXUser->new($call) unless $user;
630 $user->homenode($parent->call) if !$user->homenode;
631 $user->node($parent->call);
632 $user->lastin($main::systime) unless DXChannel::get($call);
635 # send info to all logged in thingies
636 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
637 $self->tell_buddies('loginb', $call, $ncall);
640 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
641 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
655 my $ncall = $pc->[2];
656 my $ucall = $pc->[1];
658 eph_del_regex("^PC16\\^$ncall.*$ucall");
660 # do I want users from this channel?
661 unless ($self->user->wantpc16) {
662 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
666 if ($ncall eq $main::mycall) {
667 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
671 # isolate now means only accept stuff from this call only
672 if ($self->{isolate} && $ncall ne $self->{call}) {
673 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
677 my $uref = Route::User::get($ucall);
679 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
682 my $parent = Route::Node::get($ncall);
684 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
688 $dxchan = DXChannel::get($ncall);
689 if ($dxchan && $dxchan ne $self) {
690 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
695 if ($parent->via_pc92) {
696 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
701 if (DXChannel::get($ucall)) {
702 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
706 # input filter if required and then remove user if present
707 # return unless $self->in_filter_route($parent);
708 $parent->del_user($uref);
710 # send info to all logged in thingies
711 my $user = DXUser::get_current($ncall);
712 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
713 $self->tell_buddies('logoutb', $ucall, $ncall);
715 if (eph_dup($line)) {
719 $self->route_pc17($origin, $line, $parent, $uref);
720 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
732 $self->state('init');
734 my $parent = Route::Node::get($self->{call});
736 # record the type and version offered
737 if (my ($version) = $pc->[1] =~ /DXSpider Version: (\d+\.\d+)/) {
738 $self->{version} = 53 + $version;
739 $self->user->version(53 + $version);
740 $parent->version(0 + $version);
741 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
742 $self->{build} = 0 + $build;
743 $self->user->build(0 + $build);
744 $parent->build(0 + $build);
745 dbg("$self->{call} = DXSpider version $version build $build");
746 unless ($self->is_spider) {
747 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
748 $self->user->sort('S');
752 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
754 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
755 $self->version(50.0);
756 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
757 $self->user->version($self->version);
760 if ($pc->[1] =~ /\bpc9x/) {
761 if ($self->{isolate}) {
762 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
763 } elsif (!$self->user->wantpc9x) {
764 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
766 $self->{do_pc9x} = 1;
767 dbg("$self->{call} Set do PC9x");
771 # first clear out any nodes on this dxchannel
772 my @rout = $parent->del_nodes;
773 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
774 $self->send_local_config();
782 my $homenode = shift;
784 # add this station to the user database, if required (don't remove SSID from nodes)
785 my $user = DXUser::get_current($call);
787 $user = DXUser->new($call);
788 $user->sort($type || 'U');
789 if ($user->is_node) {
790 $user->priv(1); # I have relented and defaulted nodes
791 $user->lockout(1) if $user->is_node;
793 $user->homenode($homenode) if $homenode;
794 $user->node($homenode);
797 $user->lastin($main::systime); # this make it last longer than just this invocation
798 $user->put; # just to make sure it gets written away!!!
799 dbg("DXProt: PC92 new user record for $call created");
802 # this is to fix a problem I introduced some build ago by using this function for users
803 # whereas it was only being used for nodes.
804 if ($user->is_user && $user->lockout && ($user->priv || 0) == 1) {
807 dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
813 # incoming cluster list
823 my $newline = "PC19^";
826 my (@rout, @pc92out);
828 # first get the INTERFACE node
829 my $parent = Route::Node::get($self->{call});
831 dbg("PCPROT: my parent $self->{call} has disappeared");
840 # We are making a major change from now on. We are only going to accept
841 # PC19s from directly connected nodes. This means that we are probably
842 # going to throw away most of the data that we are being sent.
844 # The justification for this is that most of it is wrong or out of date
847 # From now on we are only going to believe PC92 data and locally connected
850 for ($i = 1; $i < $#$pc-1; $i += 4) {
851 my $here = $pc->[$i];
852 my $call = uc $pc->[$i+1];
853 my $conf = $pc->[$i+2];
854 my $ver = $pc->[$i+3];
855 next unless defined $here && defined $conf && is_callsign($call);
857 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
859 # check for sane parameters
860 # $ver = 5000 if $ver eq '0000';
861 next unless $ver && $ver =~ /^\d+$/;
862 next if $ver < 5000; # only works with version 5 software
863 next if length $call < 3; # min 3 letter callsigns
864 next if $call eq $main::mycall || $call eq $main::myalias;
866 # check that this PC19 isn't trying to alter the wrong dxchan
868 my $dxchan = DXChannel::get($call);
870 if ($dxchan == $self) {
873 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
878 # isolate now means only accept stuff from this call only
879 if ($self->{isolate} && $call ne $self->{call}) {
880 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
884 my $user = check_add_user($call, 'A');
886 # if (eph_dup($genline)) {
887 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
893 if ($parent->via_pc92) {
894 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
899 my $r = Route::Node::get($call);
900 my $flags = Route::here($here)|Route::conf($conf);
902 # modify the routing table if it is in it, otherwise store it in the pc19list for now
905 if ($call ne $parent->call) {
906 if ($self->in_filter_route($r)) {
907 $ar = $parent->add($call, $ver, $flags);
908 # push @rout, $ar if $ar;
913 if ($r->version ne $ver || $r->flags != $flags) {
919 if ($call eq $self->{call} || $user->wantroutepc19) {
920 my $new = Route->new($call); # throw away
921 if ($self->in_filter_route($new)) {
922 my $ar = $parent->add($call, $ver, $flags);
923 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
924 push @rout, $ar if $ar;
925 push @pc92out, $r if $h;
932 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
933 my $mref = DXMsg::get_busy($call);
934 $mref->stop_msg($call) if $mref;
936 $user->lastin($main::systime) unless DXChannel::get($call);
940 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
941 # but remember there will only be one (pair) these because any extras will be
944 # $self->route_pc21($self->{call}, $line, @rout);
945 $self->route_pc19($self->{call}, $line, @rout);
947 if (@pc92out && !$pc92_slug_changes) {
948 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
952 # send local configuration
961 if ($self->{do_pc9x} && $self->{state} ne 'init92') {
962 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
963 $self->{do_pc9x} = 0;
965 $self->send_local_config;
967 $self->state('normal');
968 $self->{lastping} = 0;
969 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
972 # delete a cluster from the list
974 # This should never occur for directly connected nodes.
984 my $call = uc $pc->[1];
986 eph_del_regex("^PC1[679].*$call");
988 # if I get a PC21 from the same callsign as self then ignore it
989 if ($call eq $self->{call}) {
990 dbg("PCPROT: self referencing PC21 from $self->{call}");
994 # for the above reason and also because of the check for PC21s coming
995 # in for self->call from outside being ignored further down
996 # we don't need any isolation code here, because we will never
997 # act on a PC21 with self->call in it.
999 my $parent = Route::Node::get($self->{call});
1001 dbg("PCPROT: my parent $self->{call} has disappeared");
1008 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
1009 my $node = Route::Node::get($call);
1012 if ($node->via_pc92) {
1013 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1017 my $dxchan = DXChannel::get($call);
1018 if ($dxchan && $dxchan != $self) {
1019 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1024 return unless $self->in_filter_route($node);
1026 # routing objects, force a PC21 if it is local
1027 push @rout, $node->del($parent);
1028 push @rout, $call if $dxchan && @rout == 0;
1031 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1035 if (eph_dup($line)) {
1040 $self->route_pc21($origin, $line, @rout);
1041 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1054 if ($self->{do_pc9x}) {
1055 if ($self->{state} ne 'init92') {
1056 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1057 $self->{do_pc9x} = 0;
1060 $self->{lastping} = 0;
1061 $self->state('normal');
1062 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1074 # route foreign' pc27s
1076 if ($pc->[8] ne $main::mycall) {
1077 $self->route($pc->[8], $line);
1084 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1085 my $sfi = unpad($pc->[3]);
1086 my $k = unpad($pc->[4]);
1087 my $i = unpad($pc->[5]);
1088 my ($r) = $pc->[6] =~ /R=(\d+)/;
1090 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1091 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1095 # global wwv filtering on INPUT
1096 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1097 if ($self->{inwwvfilter}) {
1098 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1100 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1104 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1105 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1106 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1110 # note this only takes the first one it gets
1111 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1112 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1114 if (defined &Local::wwv) {
1117 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1122 # DON'T be silly and send on PC27s!
1123 return if $pcno == 27;
1125 # broadcast to the eager world
1126 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1138 my $call = uc $pc->[1];
1140 $nref = Route::Node::get($call);
1141 $uref = Route::User::get($call);
1142 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1144 if (eph_dup($line)) {
1148 $nref->here($pc->[2]) if $nref;
1149 $uref->here($pc->[2]) if $uref;
1150 my $ref = $nref || $uref;
1151 return unless $self->in_filter_route($ref);
1153 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1165 if ($pc->[1] ne $main::mycall) {
1166 $self->route($pc->[1], $line);
1169 if ($pc->[2] eq $main::mycall) {
1170 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1174 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1178 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1181 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1187 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1190 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1195 sub handle_26 {goto &handle_11}
1196 sub handle_27 {goto &handle_23}
1198 # mail/file handling
1207 if ($pc->[1] eq $main::mycall) {
1209 my $sub = "DXMsg::handle_$pcno";
1212 $self->route($pc->[1], $line) unless $self->is_clx;
1216 sub handle_29 {goto &handle_28}
1217 sub handle_30 {goto &handle_28}
1218 sub handle_31 {goto &handle_28}
1219 sub handle_32 {goto &handle_28}
1220 sub handle_33 {goto &handle_28}
1230 if (eph_dup($line, $eph_pc34_restime)) {
1233 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1237 # remote command replies
1246 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1247 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1250 sub handle_36 {goto &handle_34}
1261 if ($pc->[1] eq $main::mycall) {
1263 my $sub = "DXDb::handle_$pcno";
1266 $self->route($pc->[1], $line) unless $self->is_clx;
1270 # node connected list from neighbour
1280 # incoming disconnect
1289 if ($pc->[1] eq $self->{call}) {
1290 $self->disconnect(1);
1292 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1296 sub handle_40 {goto &handle_28}
1307 my $call = $pc->[1];
1308 my $sort = $pc->[2];
1311 my $l = "PC41^$call^$sort";
1312 if (eph_dup($l, $eph_info_restime)) {
1316 # input filter if required
1317 # my $ref = Route::get($call) || Route->new($call);
1318 # return unless $self->in_filter_route($ref);
1320 if ($val eq $sort || $val =~ /^\s*$/) {
1321 dbg('PCPROT: invalid value') if isdbg('chanerr');
1325 if ($call eq $main::mycall || $call eq $main::myalias) {
1326 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1329 my $chan = DXChannel::get($call);
1331 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1335 # add this station to the user database, if required
1336 my $user = DXUser::get_current($call);
1337 $user = DXUser->new($call) unless $user;
1340 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1341 dbg("PCPROT: invalid name") if isdbg('chanerr');
1345 } elsif ($sort == 2) {
1347 } elsif ($sort == 3) {
1348 if (is_latlong($val)) {
1349 my ($lat, $long) = DXBearing::stoll($val);
1350 $user->lat($lat) if $lat;
1351 $user->long($long) if $long;
1352 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1354 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1357 } elsif ($sort == 4) {
1358 $user->homenode($val);
1359 } elsif ($sort == 5) {
1360 if (is_qra(uc $val)) {
1361 my ($lat, $long) = DXBearing::qratoll(uc $val);
1362 $user->lat($lat) if $lat && !$user->lat;
1363 $user->long($long) if $long && !$user->long;
1364 $user->qra(uc $val);
1366 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1370 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1373 unless ($self->{isolate}) {
1374 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1377 # perhaps this IS what we want after all
1378 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1381 sub handle_42 {goto &handle_28}
1385 sub handle_44 {goto &handle_37}
1386 sub handle_45 {goto &handle_37}
1387 sub handle_46 {goto &handle_37}
1388 sub handle_47 {goto &handle_37}
1389 sub handle_48 {goto &handle_37}
1391 # message and database
1400 if (eph_dup($line)) {
1404 if ($pc->[1] eq $main::mycall) {
1405 DXMsg::handle_49($self, @$pc);
1407 $self->route($pc->[1], $line) unless $self->is_clx;
1411 # keep alive/user list
1420 return if (eph_dup($line));
1422 my $call = $pc->[1];
1424 my $node = Route::Node::get($call);
1426 return unless $node->call eq $self->{call};
1427 $node->usercount($pc->[2]) unless $node->users;
1429 $node->PC92C_dxchan($self->call, $pc->[-1]);
1431 # input filter if required
1432 # return unless $self->in_filter_route($node);
1434 unless ($self->{isolate}) {
1435 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1437 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1441 # incoming ping requests/answers
1451 my $from = $pc->[2];
1452 my $flag = $pc->[3];
1454 if ($to eq $main::myalias) {
1455 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1460 if ($to eq $main::mycall) {
1462 $self->send(pc51($from, $to, '0'));
1464 DXXml::Ping::handle_ping_reply($self, $from);
1467 if (eph_dup($line)) {
1470 # route down an appropriate thingy
1471 $self->route($to, $line);
1475 sub handle_61 { goto &handle_11; }
1477 # dunno but route it
1486 my $call = $pc->[1];
1487 if ($call ne $main::mycall) {
1488 $self->route($call, $line);
1501 my $call = $pc->[1];
1504 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1505 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1506 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1509 $pc = [ map { unpad($_) } @$pc ];
1511 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1515 my $wcy = WCY::update($d, @$pc[2..12]);
1516 dbg("WCY: <$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');
1518 if (defined &Local::wcy) {
1521 $rep = Local::wcy($self, @$pc[1..12]);
1526 # broadcast to the eager world
1527 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1530 # remote commands (incoming)
1539 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1542 # remote command replies
1551 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1554 # decode a pc92 call: flag call : version : build
1555 sub _decode_pc92_call
1558 my @part = split /:/, $icall;
1559 my ($flag, $call) = unpack "A A*", $part[0];
1560 unless (defined $flag && $flag ge '0' && $flag le '7') {
1561 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1564 unless ($call && is_callsign($call)) {
1565 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1568 my $is_node = $flag & 4;
1569 my $is_extnode = $flag & 2;
1570 my $here = $flag & 1;
1571 my $version = $part[1] || 0;
1572 my $build = $part[2] || 0;
1573 my $ip = $part[3] || '';
1575 if (length $version > 4 && $version =~ /[,\.][\da-f]{1,4}/i) {
1579 $version =~ s/\D+//g;
1584 $ip =~ s/^::ffff://i;
1586 dbg("$icall = '" . join("', '", $call, $is_node, $is_extnode, $here, $version, $build, $ip) . "'") if isdbg('pc92');
1587 return ($call, $is_node, $is_extnode, $here, $version, $build, $ip);
1590 # decode a pc92 call: flag call : version : build
1591 sub _encode_pc92_call
1595 # plain call or value
1596 return $ref unless ref $ref;
1598 my $ext = shift || 0;
1600 my $call = $ref->call;
1602 $flag |= $ref->here ? 1 : 0;
1603 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1605 my $dxchan = DXChannel::get($call);
1606 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1607 if (($ext & 1) && $ref->version) {
1608 my $version = $ref->version || 1.0;
1609 $version = $version * 100 + 5300 if $version < 50;
1610 $extra .= ":" . $version;
1613 if (($ext & 2) && $ref->ip) {
1616 $extra .= ':' . $ip;
1618 return "$flag$call$extra";
1631 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1634 # remove spurious IPV6 prefix on IPV4 addresses
1639 my $ncall = $parent->call;
1640 if ($ncall ne $call) {
1644 # normalise call, delete any unnormalised calls in the users file.
1645 # then ignore this thingy
1646 my $normcall = normalise_call($call);
1647 if ($normcall ne $call) {
1648 next if DXChannel::get($call);
1649 $user = DXUser::get($call);
1650 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1651 $user->del if $user;
1652 $call = $normcall; # this is safe because a route add will ignore duplicates
1656 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1657 $user = check_add_user($call, 'A');
1658 @rout = $parent->add($call, $version, Route::here($here), $ip);
1659 $r = Route::Node::get($call);
1660 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1661 if ($version && is_numeric($version) && !$r->K && !$user->K) {
1662 my $old = $user->sort;
1663 if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1665 dbg("PCProt::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1666 } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455))) {
1667 unless ($version == 5000 && $build == 0) {
1670 dbg("PCProt::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1674 $r->version($user->version) if $user->version;
1675 $r->build($user->build) if $user->build;
1676 $r->K(1) if $user->K;
1678 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1679 $user = check_add_user($call, 'U', $parent->call);
1680 @rout = $parent->add_user($call, Route::here($here), $ip);
1681 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1682 $r = Route::User::get($call);
1686 Log('DXProt', "PC92A $call -> $ip on $ncall");
1688 if ($pc92_slug_changes && $parent == $main::routeroot) {
1689 $things_add{$call} = Route::get($call);
1690 delete $things_del{$call};
1692 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1694 dbgprintring(10) if isdbg('nologchan');
1695 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1707 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1712 $ref = Route::Node::get($call);
1713 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1714 @rout = $ref->del($parent) if $ref;
1716 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1717 $ref = Route::User::get($call);
1719 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1720 @rout = $parent->del_user($ref);
1723 if ($pc92_slug_changes && $parent == $main::routeroot) {
1724 $things_del{$call} = $ref unless exists $things_add{$call};
1725 delete $things_add{$call};
1731 # this will only happen if we are slugging changes and
1732 # there are some changes to be sent, it will create an add or a delete
1734 sub gen_pc92_changes
1736 my @add = values %things_add;
1737 my @del = values %things_del;
1738 return (\@add, \@del);
1741 sub clear_pc92_changes
1743 %things_add = %things_del = ();
1744 $last_pc92_slug = $main::systime;
1753 return $_last_pc9x_id;
1758 if (!$_last_time || $_last_time != $main::systime) {
1759 $_last_time = $main::systime;
1761 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1764 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1775 # check that the time is between 0 >= $t < 86400
1776 unless ($t >= 0 && $t < 86400) {
1777 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1781 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1782 my $now = $main::systime - $main::systime_daystart ;
1783 my $diff = abs($now - $t);
1784 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1785 my $c = ref $call ? $call->call : $call;
1786 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1790 my $parent = ref $call ? $call : Route::Node::get($call);
1792 # we only do this for external calls whose routing table
1793 # record come and go. The reference for mycall is permanent
1794 # and not that frequently used, it also never times out, so
1795 # the id on it is completely unreliable. Besides, only commands
1796 # originating on this box will go through this code...
1797 if ($parent->call ne $main::mycall) {
1798 my $lastid = $parent->lastid;
1799 if (defined $lastid) {
1801 # note that this is where we determine whether this pc9x has come in yesterday
1802 # but is still greater (modulo 86400) than the lastid or is simply an old
1803 # duplicate sentence. To determine this we need to do some module 86400
1804 # arithmetic. High numbers mean that this is an old duplicate sentence,
1805 # low numbers that it is a new sentence.
1807 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1808 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1809 # 86378 respectively in the calculation below).
1811 if ($t+86400-$lastid > $pc9x_past_age) {
1812 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1815 } elsif ($t == $lastid) {
1816 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1819 # check that if we have a low number in lastid that yesterday's numbers
1820 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1821 if ($lastid+86400-$t < $pc9x_past_age) {
1822 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1829 $parent = Route::Node->new($call);
1831 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1834 if (isdbg('pc92dedupe')) {
1835 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1836 my $val = $parent->{lastid};
1837 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1838 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1840 $parent->lastid($t);
1845 sub pc92_handle_first_slot
1852 my $oparent = $parent;
1856 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1857 if ($call && $is_node) {
1858 if ($call eq $main::mycall) {
1859 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
1862 if ($call eq $main::myalias) {
1863 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
1866 # this is only accepted from my "self".
1867 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1868 # locally connected. Local nodes always take precedence. But we remember the lastid
1869 # to try to reduce the number of dupe PC92s for this external node.
1870 if (DXChannel::get($call) && $call ne $self->{call}) {
1871 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1872 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1876 # reparent to external node (note that we must have received a 'C' or 'A' record
1877 # from the true parent node for this external before we get one for the this node
1878 unless ($parent = Route::Node::get($call)) {
1879 if ($is_extnode && $oparent) {
1880 @radd = _add_thingy($oparent, $slot, $self, $hops);
1883 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1887 $parent = check_pc9x_t($call, $t, 92) || return;
1888 $parent->via_pc92(1);
1889 $parent->PC92C_dxchan($self->{call}, $hops);
1892 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1895 $parent->here(Route::here($here));
1896 $parent->version($version || $pc19_version) if $version;
1897 $parent->build($build) if $build;
1898 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1899 return ($parent, @radd);
1902 # DXSpider routing entries
1913 my $pcall = $pc->[1];
1915 my $sort = $pc->[3];
1916 my $hops = $pc->[-1];
1918 # this catches loops of A/Ds
1919 # if (eph_dup($line, $pc9x_dupe_age)) {
1923 if ($pcall eq $main::mycall) {
1924 LogDbg('err', "PCPROT: looped back, ignored");
1928 if ($pcall eq $main::myalias) {
1929 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
1933 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
1934 if ($self->{isolate}) {
1935 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
1937 } elsif (!$self->user->wantpc9x) {
1938 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
1941 $self->state('init92');
1942 $self->{do_pc9x} = 1;
1943 dbg("DXPROT: Do pc9x set on $pcall");
1946 unless ($self->{do_pc9x}) {
1947 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1951 # don't create routing entries for D records that don't already exist
1952 # this is what causes all those PC92 loops!
1953 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
1954 my $oparent = $parent;
1956 $parent->do_pc9x(1);
1957 $parent->via_pc92(1);
1959 if ($sort eq 'F' || $sort eq 'R') {
1961 # this is the route finding section
1962 # here is where the consequences of the 'find' command
1965 my $from = $pc->[4];
1966 my $target = $pc->[5];
1972 if ($ref = DXChannel::get($target)) {
1973 $flag = 1; # we are directly connected
1975 $ref = Route::get($target);
1976 $dxchan = $ref->dxchan;
1979 if ($ref && $flag && $dxchan) {
1980 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
1983 } elsif ($sort eq 'R') {
1984 if (my $dxchan = DXChannel::get($from)) {
1985 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
1987 my $ref = Route::get($from);
1989 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
1991 $_->send($line) for @dxchan;
1993 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
1996 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2002 } elsif ($sort eq 'K') {
2003 $pc92Kin += length $line;
2005 # remember the last channel we arrived on
2006 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2008 my @ent = _decode_pc92_call($pc->[4]);
2013 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
2014 return unless $parent; # dupe
2016 push @radd, $add if $add;
2018 my $call = $parent->call;
2019 my $version = $ent[4] || 0;
2020 my $build = $ent[5] || 0;
2022 my $oldbuild = $parent->build || 0;
2023 my $oldversion = $parent->version || 0;
2024 my $user = check_add_user($parent->call, 'S');
2025 my $oldsort = $user->sort || '';
2027 dbg("PCProt PC92 K v: $version ov: $oldversion b: $build ob: $oldbuild pk: " . ($parent->K || '0') . " uk: " . ($user->K || 0)) if isdbg('pc92k');
2029 if (is_numeric($version) || is_numeric($build)) {
2031 if (($oldversion ne $version || $build ne $oldbuild)) {
2032 dbg("PCProt PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild)");
2033 $user->version($parent->version($version));
2034 $user->build($parent->build($build));
2037 if ($oldsort ne 'S') {
2038 dbg("PCProt PC92 K node $call updated sort: $sort (was $oldsort)");
2043 dbg("PCProt PC92 K node $call updated - marked as PC92 K user");
2047 $user->put if $changed;
2048 $parent->K(1); # mark this as come in on a K
2050 dbg("DXProt PC92 K version call $call: invalid version: '$version' or build: '$version', ignored");
2052 dbg("ROUTE: reset obscount on $call now " . $parent->obscount) if isdbg('obscount');
2054 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2056 $pc92Ain += length $line if $sort eq 'A';
2057 $pc92Cin += length $line if $sort eq 'C';
2058 $pc92Din += length $line if $sort eq 'D';
2060 # remember the last channel we arrived on
2061 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2063 # this is the main route section
2064 # here is where all the routes are created and destroyed
2066 # cope with missing duplicate node calls in the first slot
2067 my $me = $pc->[4] || '';
2068 $me ||= _encode_pc92_call($parent) unless $me ;
2070 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2074 # look at the first one which will always be a node of some sort
2075 # except in the case of 'A' or 'D' in which the $pcall is used
2076 # otherwise use the node call and update any information
2077 # that needs to be done.
2080 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2081 return unless $parent; # dupe
2084 push @radd, $add if $add;
2087 # do a pass through removing any references to either mycall
2091 next unless $_ && @$_;
2092 if ($_->[0] eq $main::mycall) {
2093 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2096 if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
2097 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2106 push @radd, _add_thingy($parent, $_, $self, $hops);
2108 } elsif ($sort eq 'D') {
2110 push @rdel, _del_thingy($parent, $_, $self);
2112 } elsif ($sort eq 'C') {
2113 my (@nodes, @users);
2115 # we reset obscounts on config records as well as K records
2117 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2120 foreach my $r (@nent) {
2121 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2124 push @nodes, $r->[0];
2126 push @users, $r->[0];
2129 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2133 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2136 foreach my $r (@nent) {
2139 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2143 foreach my $r (@$dnodes) {
2144 push @rdel,_del_thingy($parent, [$r, 1], $self);
2146 foreach my $r (@$dusers) {
2147 push @rdel,_del_thingy($parent, [$r, 0], $self);
2150 # remember this last PC92C for rebroadcast on demand
2151 $parent->last_PC92C($line);
2153 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2157 foreach my $r (@rdel) {
2160 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2161 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2163 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2164 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2165 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2166 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2167 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2170 # broadcast it if we get here
2171 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2174 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2175 # might be on two or more nodes at the same time or that there may be more than
2176 # one equal distance neighbour to a node.
2178 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2179 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2180 # each and then combined to give a set of dxchans to send the PC9x record down
2182 sub find_pc9x_routes
2185 my $ref = Route::get($to);
2189 if ($ref->isa('Route::User')) {
2190 my $dxchan = DXChannel::get($to);
2191 push @parent, $to if $dxchan;
2192 push @parent, $ref->parents;
2196 foreach my $p (@parent) {
2198 my @routes = Route::findroutes($p);
2199 foreach my $r (@routes) {
2200 $lasthops = $r->[0] unless defined $lasthops;
2201 if ($r->[0] == $lasthops) {
2202 $cand{$r->[1]->call} = $r->[1];
2208 return values %cand;
2219 # $self->{do_pc9x} ||= 1;
2221 my $pcall = $pc->[1]; # this is now checked earlier
2223 # remember that we are converting PC10->PC93 and self will be $main::me if it
2225 unless ($self->{do_pc9x}) {
2226 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2231 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2233 my $to = uc $pc->[3];
2234 my $from = uc $pc->[4];
2235 my $via = uc $pc->[5];
2236 my $text = $pc->[6];
2237 my $onode = uc $pc->[7];
2238 $onode = $pcall if @$pc <= 8;
2240 # this is catch loops caused by bad software ...
2241 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2245 if (isdbg('progress')) {
2246 my $vs = $via ne '*' ? " via $via" : '';
2247 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2251 # will we allow it at all?
2254 if (@bad = BadWords::check($text)) {
2255 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
2260 # if this is a 'bad spotter' user then ignore it
2262 $nossid =~ s/-\d+$//;
2263 if ($badspotter->in($nossid)) {
2264 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
2268 # ignore PC93 coming in from outside this node with a target of local
2269 if ($to eq 'LOCAL' && $self != $main::me) {
2270 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2274 # if it is routeable then then treat it like a talk
2275 my $ref = Route::get($to);
2279 # convert to PC10 or local talks where appropriate
2280 # PC93 capable nodes of the same hop count all get a copy
2281 # if there is a PC10 node then it will get a copy and that
2282 # will be it. Hopefully such a node will not figure highly
2283 # in the route list, unless it is local, 'cos it don't issue PC92s!
2284 # note that both local and PC93s at the same time are possible if the
2285 # user on more than one node.
2286 my @routes = find_pc9x_routes($to);
2288 foreach $dxchan (@routes) {
2289 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2290 if ($dxchan->{do_pc9x}) {
2291 $dxchan->send($line);
2293 $dxchan->talk($from, $to, $via, $text, $onode);
2296 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2301 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2303 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2304 my $wx = $to eq 'WX' ? '1' : '0';
2305 my $local = $via eq 'LOCAL' ? '*' : $via;
2307 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2308 return if $via eq 'LOCAL';
2309 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2310 # chat messages really only locally connected users
2311 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2314 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2315 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2318 # if get here then rebroadcast the thing with its Hop count decremented (if
2319 # there is one). If it has a hop count and it decrements to zero then don't
2322 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2334 unless (eph_dup($line)) {
2336 my $pcall = $pc->[1];
2337 unless (is_callsign($pcall)) {
2338 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2342 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2343 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2345 unless ($self->{isolate}) {
2346 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me