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 $pc11_dwell_time
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.
62 $pc11_dwell_time = 1; # number of seconds to wait for a PC61 to come to substitute the PC11
65 $pc92filterdef = bless ([
66 # tag, sort, field, priv, special parser
75 # this is a place to park an incoming PC11 in the sure and certain hope that
76 # a PC61 will be along soon. This has the side benefit that it will delay a
77 # a PC11 for one second - assuming that it is not removed by a PC61 version
79 # incoming talk commands
88 # this is to catch loops caused by bad software ...
89 if (eph_dup($line, $pc10_dupe_age)) {
94 # is it for me or one of mine?
95 my ($from, $to, $via, $call, $dxchan);
97 if ($pc->[5] gt ' ') {
104 # if this is a 'nodx' node then ignore it
105 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
106 dbg($line) if isdbg('nologchan');
107 dbg("PCPROT: Bad Node, dropped");
113 $nossid =~ s/-\d+$//;
114 if ($badspotter->in($nossid)) {
115 dbg($line) if isdbg('nologchan');
116 dbg("PCPROT: Bad Spotter, dropped");
120 # if we are converting announces to talk is it a dup?
122 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
123 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
128 # will we allow it at all?
131 if (@bad = BadWords::check($pc->[3])) {
132 my $bw = join ', ', @bad;
133 dbg($line) if isdbg('nologchan');
134 dbg("PCPROT: Badwords: '$bw', dropped");
139 # convert this to a PC93, coming from mycall with origin set and process it as such
140 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
159 my $recurse = shift || 0;
161 # route 'foreign' pc26s
163 if ($pc->[7] ne $main::mycall) {
164 $self->route($pc->[7], $line);
169 dbg("INPUT PC$pcno $line origin $origin recurse: $recurse") if isdbg("pc11") || isdbg("pc61");
171 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
173 # is the spotted callsign blank? This should really be trapped earlier but it
174 # could break other protocol sentences. Also check for lower case characters.
175 if ($pc->[2] =~ /^\s*$/) {
176 dbg($line) if isdbg('nologchan');
177 dbg("PCPROT: blank callsign, dropped");
180 if ($pc->[2] =~ /[a-z]/) {
181 dbg($line) if isdbg('nologchan');
182 dbg("PCPROT: lowercase characters, dropped");
187 # if this is a 'nodx' node then ignore it
188 if ($badnode->in($pc->[7])) {
189 dbg($line) if isdbg('nologchan');
190 dbg("PCPROT: Bad Node $pc->[7], dropped");
194 # convert the date to a unix date
195 my $d = cltounix($pc->[3], $pc->[4]);
196 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
197 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
198 dbg($line) if isdbg('nologchan');
199 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n");
204 if ($baddx->in($pc->[2])) {
205 dbg("PCPROT: Bad DX spot '$pc->[2]', ignored");
206 dbg($line) if isdbg('nologchan');
210 # is it claiming to be BUST(ed)
211 $pc->[5] =~ s/^\s+//; # take any leading blanks off
212 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
213 if ($pc->[2] =~ /BUST\w*$/) {
214 dbg($line) if isdbg('nologchan');
215 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
219 my $nossid = $pc->[6];
220 $nossid =~ s/-\d+$//;
222 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
226 # $f2 = date in unix format
229 # $f5 = spotted dxcc country
230 # $f6 = spotter dxcc country
233 # $f9 = spotted cq zone
235 # $f11 = spotter cq zone
236 # $f12 = spotted us state
237 # $f13 = spotter us state
241 # is this is a 'bad spotter' or an unknown user then ignore it.
242 if ($badspotter->in($nossid)) {
243 dbg($line) if isdbg('nologchan');
244 dbg("PCPROT: Bad Spotter $pc->[6], dropped");
248 # global spot filtering on INPUT
249 if ($self->{inspotsfilter}) {
250 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
252 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
257 # we check IP addresses for PC61
258 if (@$pc > 8 && is_ipaddr($pc->[8])) {
262 if (DXCIDR::find($ip)) {
263 dbg($line) if isdbg('nologchan');
264 dbg("PCPROT: $ip in badip list, dropped");
269 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
271 my $key = join '|', @spot[0..2,4,7]; # not including text
278 if ($key eq $pc11_saved->[0]) {
280 my $percent = int($pc11_to_61 * 100 / $pc11_rx);
281 dbg("recurse: $recurse saved PC11 spot $key dumped, better pc61 received ($percent\%) pc61: $pc61_rx pc11: $pc11_rx -> pc61: $pc11_to_61 ") if isdbg("pc11");
291 if ($key eq $pc11_saved->[0]) {
292 dbg("recurse: $recurse saved PC11 spot $key, dupe pc11 received and dumped") if isdbg("pc11");
293 return; # because it's a dup
297 # can we promote this to a PC61?
298 my $r = Route::User::get($spot[4]); # find spotter
299 if ($r && $r->ip) { # do we have an ip addres
300 $pcno = 61; # now turn this into a PC61
303 my $percent = int($rpc11_to_61 * 100 / $pc11_rx);
304 dbg("recurse: $recurse PC11 spot $key promoted to pc61 ($percent\%) ip $spot[14] pc61: $pc61_rx pc11: $pc11_rx -> pc61 $pc11_to_61") if isdbg("pc11");
308 # if it is STILL (despite all efforts to change it) a PC11
310 if ($pc11_saved && $key ne $pc11_saved->[0]) {
311 dbg("recurse: $recurse NEW PC11 spot $key ne $pc11_saved->[0], recursing") if isdbg("pc11");
312 # shift @$pc11_saved; # saved key
313 my $self = $pc11_saved->[1];
314 my @saved = @$pc11_saved[2..5];
315 $self->handle_11(@saved, 1);
318 $pc11_saved = [$key, $self, $pcno, $line, $origin, $pc];
319 $pc11_saved_time = $main::systime;
320 dbg("recurse: $recurse saved new PC11 spot $key for a better offer") if isdbg("pc11");
325 dbg("recurse: $recurse PC61 spot $key passed onward pc61: $pc61_rx pc11: $pc11_rx -> pc61 $pc11_to_61") if isdbg("pc11");
333 # this goes after the input filtering, but before the add
334 # so that if it is input filtered, it isn't added to the dup
335 # list. This allows it to come in from a "legitimate" source
336 if (Spot::dup(@spot[0..4,7])) {
337 dbg("PCPROT: Duplicate Spot $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot');
342 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
343 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
344 # to be current once we have seen the first PC92C from that node.
346 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
349 my $nroute = Route::Node::get($pc->[7]);
350 my $uroute = Route::Node::get($pc->[6]);
351 my $local = DXChannel::get($pc->[7]);
353 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
355 my $ip = $pcno == 61 ? $pc->[8] : '';
356 # $s .= "User $pc->[6] not logged in, " unless $uroute;
357 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
358 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
360 my $action = $senderverify > 1 ? ", DUMPED" : '';
362 dbg("PCPROT: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
363 return unless $senderverify < 2;
368 # we until here to do any censorship to try and reduce the amount of noise that repeated copies
369 # from other connected nodes cause
372 if (@bad = BadWords::check($pc->[5])) {
373 my $bw = join ', ', @bad;
374 dbg($line) if isdbg('nologchan');
375 dbg("PCPROT: Badwords: '$bw', dropped");
385 $ip ||= $spot[14] if exists $spot[14];
386 if (isdbg('progress')) {
387 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
389 my $d = ztime($spot[2]);
390 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
391 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
392 $s .= " route: $origin";
397 # @spot at this point contains:-
398 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
399 # then spotted itu, spotted cq, spotters itu, spotters cq
400 # you should be able to route on any of these
403 # fix up qra locators of known users
404 my $user = DXUser::get_current($spot[4]);
406 my $qra = $user->qra;
407 unless ($qra && is_qra($qra)) {
408 my $lat = $user->lat;
409 my $long = $user->long;
410 if (defined $lat && defined $long) {
411 $user->qra(DXBearing::lltoqra($lat, $long));
416 # send a remote command to a distant cluster if it is visible and there is no
417 # qra locator and we havn't done it for a month.
419 unless ($user->qra) {
421 my $to = $user->homenode;
422 my $last = $user->lastoper || 0;
423 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
424 my $cmd = "forward/opernam $spot[4]";
425 # send the rcmd but we aren't interested in the replies...
426 my $dxchan = $node->dxchan;
427 if ($dxchan && $dxchan->is_clx) {
428 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
430 route(undef, $to, pc34($main::mycall, $to, $cmd));
432 if ($to ne $origin) {
434 $node = Route::Node::get($to);
436 $dxchan = $node->dxchan;
437 if ($dxchan && $dxchan->is_clx) {
438 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
440 route(undef, $to, pc34($main::mycall, $to, $cmd));
444 $user->lastoper($main::systime);
450 # cancel any recursion as we have now processed it
452 if ($pc11_saved && $key eq $pc11_saved->[0]) {
453 dbg("recurse: $recurse key: $key saved_key: $pc11_saved->[0] removed") if isdbg('pc11');
460 if (defined &Local::spot) {
463 $r = Local::spot($self, @spot);
468 # DON'T be silly and send on PC26s!
469 return if $pcno == 26;
471 # send out the filtered spots
472 send_dx_spot($self, $line, @spot) if @spot;
477 # used to kick outstanding PC11 if required
480 if ($pc11_saved && $main::systime > $pc11_saved_time + $pc11_dwell_time) {
481 dbg("saved PC11 spot $pc11_saved->[0] timed out waiting, recursing") if isdbg("pc11");
482 shift @$pc11_saved; # saved key
483 my $self = shift @$pc11_saved;
484 my @saved = @$pc11_saved;
486 $self->handle_11(@saved, 1);
499 # announce duplicate checking
500 $pc->[3] =~ s/^\s+//; # remove leading blanks
502 # if this is a 'nodx' node then ignore it
503 if ($badnode->in($pc->[5])) {
504 dbg($line) if isdbg('nologchan');
505 dbg("PCPROT: Bad Node, dropped");
509 # if this is a 'bad spotter' user then ignore it
510 my $nossid = $pc->[1];
511 $nossid =~ s/-\d+$//;
512 if ($badspotter->in($nossid)) {
513 dbg($line) if isdbg('nologchan');
514 dbg("PCPROT: Bad Spotter, dropped");
518 # ignore PC12s from origins that use PCxx protocol
519 my $oref = Route::get($origin);
520 if ($oref->do_pc9x) {
521 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
527 if (@bad = BadWords::check($pc->[3])) {
528 my $bw = join ', ', @bad;
529 dbg($line) if isdbg('nologchan');
530 dbg("PCPROT: Badwords: '$bw', dropped");
538 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
539 $self->send_chat(0, $line, @$pc[1..6]);
540 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
542 # ignore something that looks like a chat line coming in with sysop
543 # flag - this is a kludge...
544 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
545 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
549 # here's a bit of fun, convert incoming ann with a callsign in the first word
550 # or one saying 'to <call>' to a talk if we can route to the recipient
552 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
554 my $ref = Route::get($call);
556 $dxchan = $ref->dxchan;
557 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
564 $self->send_announce(0, $line, @$pc[1..6]);
566 $self->route($pc->[2], $line);
570 if (defined &Local::ann) {
573 $r = Local::ann($self, $line, @$pc[1..6]);
587 if (eph_dup($line, $eph_pc15_restime)) {
590 unless ($self->{isolate}) {
591 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
607 my $ncall = $pc->[1];
608 my $newline = "PC16^";
610 # dos I want users from this channel?
611 unless ($self->user->wantpc16) {
612 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
617 if ($ncall eq $main::mycall) {
618 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
623 $h = 1 if DXChannel::get($ncall);
624 if ($h && $self->{call} ne $ncall) {
625 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
629 if (eph_dup($line)) {
633 # isolate now means only accept stuff from this call only
634 if ($self->{isolate} && $ncall ne $self->{call}) {
635 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
639 my $parent = Route::Node::get($ncall);
642 $dxchan = $parent->dxchan;
643 if ($dxchan && $dxchan ne $self) {
644 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
648 # input filter if required
649 return unless $self->in_filter_route($parent);
651 $parent = Route::Node->new($ncall);
655 if ($parent->via_pc92) {
656 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
663 for ($i = 2; $i < $#$pc; $i++) {
664 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
665 next unless $call && $conf && defined $here && is_callsign($call);
666 next if $call eq $main::mycall;
668 eph_del_regex("^PC17\\^$call\\^$ncall");
670 $conf = $conf eq '*';
672 # reject this if we think it is a node already
673 my $r = Route::Node::get($call);
674 my $u = DXUser::get_current($call) unless $r;
675 if ($r || ($u && $u->is_node)) {
676 dbg("PCPROT: $call is a node") if isdbg('chanerr');
680 $r = Route::User::get($call);
681 my $flags = Route::here($here)|Route::conf($conf);
684 my $au = $r->addparent($parent);
685 if ($r->flags != $flags) {
689 push @rout, $r if $h && $au;
691 my @ans = $parent->add_user($call, $flags);
692 push @rout, @ans if $h && @ans;
695 # add this station to the user database, if required
696 my $user = DXUser::get_current($ncall);
697 $user = DXUser->new($call) unless $user;
698 $user->homenode($parent->call) if !$user->homenode;
699 $user->node($parent->call);
700 $user->lastin($main::systime) unless DXChannel::get($call);
703 # send info to all logged in thingies
704 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
705 $self->tell_buddies('loginb', $call, $ncall);
708 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
709 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
723 my $ncall = $pc->[2];
724 my $ucall = $pc->[1];
726 eph_del_regex("^PC16\\^$ncall.*$ucall");
728 # do I want users from this channel?
729 unless ($self->user->wantpc16) {
730 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
734 if ($ncall eq $main::mycall) {
735 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
739 # isolate now means only accept stuff from this call only
740 if ($self->{isolate} && $ncall ne $self->{call}) {
741 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
745 my $uref = Route::User::get($ucall);
747 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
750 my $parent = Route::Node::get($ncall);
752 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
756 $dxchan = DXChannel::get($ncall);
757 if ($dxchan && $dxchan ne $self) {
758 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
763 if ($parent->via_pc92) {
764 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
769 if (DXChannel::get($ucall)) {
770 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
774 # input filter if required and then remove user if present
775 # return unless $self->in_filter_route($parent);
776 $parent->del_user($uref);
778 # send info to all logged in thingies
779 my $user = DXUser::get_current($ncall);
780 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
781 $self->tell_buddies('logoutb', $ucall, $ncall);
783 if (eph_dup($line)) {
787 $self->route_pc17($origin, $line, $parent, $uref);
788 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
800 $self->state('init');
802 my $parent = Route::Node::get($self->{call});
804 # record the type and version offered
805 if (my ($software, $version) = $pc->[1] =~ /(DXSpider|CC\s*Cluster)\s+Version: (\d+(?:\.\d+)?)/i) {
807 $version += 53 if $version < 6;
808 $self->{version} = $version;
809 $self->user->version($version);
810 $parent->version($version);
811 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
813 $self->{build} = $build;
814 $self->user->build($build);
815 $parent->build($build);
816 dbg("$self->{call} = $software version $version build $build");
817 unless ($self->is_spider) {
818 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
819 $self->user->sort('S');
823 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
825 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
826 $self->version(50.0);
827 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
828 $self->user->version($self->version);
831 if ($pc->[1] =~ /CC\*Cluster/i || $pc->[1] =~ /\bpc9x/i) {
832 if ($self->{isolate}) {
833 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
834 } elsif (!$self->user->wantpc9x) {
835 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
837 $self->{do_pc9x} = 1;
838 dbg("$self->{call} Set do PC9x");
842 # first clear out any nodes on this dxchannel
843 my @rout = $parent->del_nodes;
844 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
845 $self->send_local_config();
853 my $homenode = shift;
855 # add this station to the user database, if required (don't remove SSID from nodes)
856 my $user = DXUser::get_current($call);
858 $user = DXUser->new($call);
859 $user->sort($type || 'U');
860 if ($user->is_node) {
861 $user->priv(1); # I have relented and defaulted nodes
862 $user->lockout(1) if $user->is_node;
864 $user->homenode($homenode) if $homenode;
865 $user->node($homenode);
868 $user->lastin($main::systime); # this make it last longer than just this invocation
869 $user->put; # just to make sure it gets written away!!!
870 dbg("DXProt: PC92 new user record for $call created");
873 # this is to fix a problem I introduced some build ago by using this function for users
874 # whereas it was only being used for nodes.
875 if ($user->is_user && $user->lockout && ($user->priv // 0) == 1) {
878 dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
884 # incoming cluster list
894 my $newline = "PC19^";
897 my (@rout, @pc92out);
899 # first get the INTERFACE node
900 my $parent = Route::Node::get($self->{call});
902 dbg("PCPROT: my parent $self->{call} has disappeared");
911 # We are making a major change from now on. We are only going to accept
912 # PC19s from directly connected nodes. This means that we are probably
913 # going to throw away most of the data that we are being sent.
915 # The justification for this is that most of it is wrong or out of date
918 # From now on we are only going to believe PC92 data and locally connected
921 for ($i = 1; $i < $#$pc-1; $i += 4) {
922 my $here = $pc->[$i];
923 my $call = uc $pc->[$i+1];
924 my $conf = $pc->[$i+2];
925 my $ver = $pc->[$i+3];
926 next unless defined $here && defined $conf && is_callsign($call);
928 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
930 # check for sane parameters
931 # $ver = 5000 if $ver eq '0000';
932 next unless $ver && $ver =~ /^\d+$/;
933 next if $ver < 5000; # only works with version 5 software
934 next if length $call < 3; # min 3 letter callsigns
935 next if $call eq $main::mycall || $call eq $main::myalias;
937 # check that this PC19 isn't trying to alter the wrong dxchan
939 my $dxchan = DXChannel::get($call);
941 if ($dxchan == $self) {
944 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
949 # isolate now means only accept stuff from this call only
950 if ($self->{isolate} && $call ne $self->{call}) {
951 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
955 my $user = check_add_user($call, 'A');
957 # if (eph_dup($genline)) {
958 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
964 if ($parent->via_pc92) {
965 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
970 my $r = Route::Node::get($call);
971 my $flags = Route::here($here)|Route::conf($conf);
973 # modify the routing table if it is in it, otherwise store it in the pc19list for now
976 if ($call ne $parent->call) {
977 if ($self->in_filter_route($r)) {
978 $ar = $parent->add($call, $ver, $flags);
979 # push @rout, $ar if $ar;
984 if ($r->version ne $ver || $r->flags != $flags) {
990 if ($call eq $self->{call} || $user->wantroutepc19) {
991 my $new = Route->new($call); # throw away
992 if ($self->in_filter_route($new)) {
993 my $ar = $parent->add($call, $ver, $flags);
994 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
995 push @rout, $ar if $ar;
996 push @pc92out, $r if $h;
1003 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
1004 my $mref = DXMsg::get_busy($call);
1005 $mref->stop_msg($call) if $mref;
1007 $user->lastin($main::systime) unless DXChannel::get($call);
1011 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
1012 # but remember there will only be one (pair) these because any extras will be
1015 # $self->route_pc21($self->{call}, $line, @rout);
1016 $self->route_pc19($self->{call}, $line, @rout);
1018 if (@pc92out && !$pc92_slug_changes) {
1019 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
1023 # send local configuration
1032 if ($self->{do_pc9x} && $self->{state} ne 'init92' && $self->{state} ne 'normal') {
1033 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1034 $self->{do_pc9x} = 0;
1036 $self->send_local_config;
1037 $self->send(pc22());
1038 $self->state('normal');
1039 $self->{lastping} = 0;
1040 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1043 # delete a cluster from the list
1045 # This should never occur for directly connected nodes.
1055 my $call = uc $pc->[1];
1057 eph_del_regex("^PC1[679].*$call");
1059 # if I get a PC21 from the same callsign as self then ignore it
1060 if ($call eq $self->{call}) {
1061 dbg("PCPROT: self referencing PC21 from $self->{call}");
1065 # for the above reason and also because of the check for PC21s coming
1066 # in for self->call from outside being ignored further down
1067 # we don't need any isolation code here, because we will never
1068 # act on a PC21 with self->call in it.
1070 my $parent = Route::Node::get($self->{call});
1072 dbg("PCPROT: my parent $self->{call} has disappeared");
1079 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
1080 my $node = Route::Node::get($call);
1083 if ($node->via_pc92) {
1084 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1088 my $dxchan = DXChannel::get($call);
1089 if ($dxchan && $dxchan != $self) {
1090 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1095 return unless $self->in_filter_route($node);
1097 # routing objects, force a PC21 if it is local
1098 push @rout, $node->del($parent);
1099 push @rout, $call if $dxchan && @rout == 0;
1102 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1106 if (eph_dup($line)) {
1111 $self->route_pc21($origin, $line, @rout);
1112 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1125 if ($self->{do_pc9x}) {
1126 if ($self->{state} ne 'init92' && $self->{state} ne 'normal') {
1127 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1128 $self->{do_pc9x} = 0;
1131 $self->{lastping} = 0;
1132 $self->state('normal');
1133 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1145 # route foreign' pc27s
1147 if ($pc->[8] ne $main::mycall) {
1148 $self->route($pc->[8], $line);
1155 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1156 my $sfi = unpad($pc->[3]);
1157 my $k = unpad($pc->[4]);
1158 my $i = unpad($pc->[5]);
1159 my ($r) = $pc->[6] =~ /R=(\d+)/;
1161 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1162 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1166 # global wwv filtering on INPUT
1167 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1168 if ($self->{inwwvfilter}) {
1169 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1171 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1175 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1176 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1177 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1181 # note this only takes the first one it gets
1182 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1183 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1185 if (defined &Local::wwv) {
1188 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1193 # DON'T be silly and send on PC27s!
1194 return if $pcno == 27;
1196 # broadcast to the eager world
1197 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1209 my $call = uc $pc->[1];
1211 $nref = Route::Node::get($call);
1212 $uref = Route::User::get($call);
1213 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1215 if (eph_dup($line)) {
1219 $nref->here($pc->[2]) if $nref;
1220 $uref->here($pc->[2]) if $uref;
1221 my $ref = $nref || $uref;
1222 return unless $self->in_filter_route($ref);
1224 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1236 if ($pc->[1] ne $main::mycall) {
1237 $self->route($pc->[1], $line);
1240 if ($pc->[2] eq $main::mycall) {
1241 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1245 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1249 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1252 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1258 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1261 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1266 sub handle_26 {goto &handle_11}
1267 sub handle_27 {goto &handle_23}
1269 # mail/file handling
1278 if ($pc->[1] eq $main::mycall) {
1280 my $sub = "DXMsg::handle_$pcno";
1283 $self->route($pc->[1], $line) unless $self->is_clx;
1287 sub handle_29 {goto &handle_28}
1288 sub handle_30 {goto &handle_28}
1289 sub handle_31 {goto &handle_28}
1290 sub handle_32 {goto &handle_28}
1291 sub handle_33 {goto &handle_28}
1301 if (eph_dup($line, $eph_pc34_restime)) {
1304 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1308 # remote command replies
1317 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1318 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1321 sub handle_36 {goto &handle_34}
1332 if ($pc->[1] eq $main::mycall) {
1334 my $sub = "DXDb::handle_$pcno";
1337 $self->route($pc->[1], $line) unless $self->is_clx;
1341 # node connected list from neighbour
1351 # incoming disconnect
1360 if ($pc->[1] eq $self->{call}) {
1361 $self->disconnect(1);
1363 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1367 sub handle_40 {goto &handle_28}
1378 my $call = $pc->[1];
1379 my $sort = $pc->[2];
1382 my $l = "PC41^$call^$sort";
1383 if (eph_dup($l, $eph_info_restime)) {
1387 # input filter if required
1388 # my $ref = Route::get($call) || Route->new($call);
1389 # return unless $self->in_filter_route($ref);
1391 if ($val eq $sort || $val =~ /^\s*$/) {
1392 dbg('PCPROT: invalid value') if isdbg('chanerr');
1396 if ($call eq $main::mycall || $call eq $main::myalias) {
1397 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1400 my $chan = DXChannel::get($call);
1402 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1406 # add this station to the user database, if required
1407 my $user = DXUser::get_current($call);
1408 $user = DXUser->new($call) unless $user;
1411 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1412 dbg("PCPROT: invalid name") if isdbg('chanerr');
1416 } elsif ($sort == 2) {
1418 } elsif ($sort == 3) {
1419 if (is_latlong($val)) {
1420 my ($lat, $long) = DXBearing::stoll($val);
1421 $user->lat($lat) if $lat;
1422 $user->long($long) if $long;
1423 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1425 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1428 } elsif ($sort == 4) {
1429 $user->homenode($val);
1430 } elsif ($sort == 5) {
1431 if (is_qra(uc $val)) {
1432 my ($lat, $long) = DXBearing::qratoll(uc $val);
1433 $user->lat($lat) if $lat && !$user->lat;
1434 $user->long($long) if $long && !$user->long;
1435 $user->qra(uc $val);
1437 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1441 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1444 unless ($self->{isolate}) {
1445 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1448 # perhaps this IS what we want after all
1449 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1452 sub handle_42 {goto &handle_28}
1456 sub handle_44 {goto &handle_37}
1457 sub handle_45 {goto &handle_37}
1458 sub handle_46 {goto &handle_37}
1459 sub handle_47 {goto &handle_37}
1460 sub handle_48 {goto &handle_37}
1462 # message and database
1471 if (eph_dup($line)) {
1475 if ($pc->[1] eq $main::mycall) {
1476 DXMsg::handle_49($self, @$pc);
1478 $self->route($pc->[1], $line) unless $self->is_clx;
1482 # keep alive/user list
1491 return if (eph_dup($line));
1493 my $call = $pc->[1];
1495 my $node = Route::Node::get($call);
1497 return unless $node->call eq $self->{call};
1498 $node->usercount($pc->[2]) unless $node->users;
1500 $node->PC92C_dxchan($self->call, $pc->[-1]);
1502 # input filter if required
1503 # return unless $self->in_filter_route($node);
1505 unless ($self->{isolate}) {
1506 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1508 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1512 # incoming ping requests/answers
1522 my $from = $pc->[2];
1523 my $flag = $pc->[3];
1525 if ($to eq $main::myalias) {
1526 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1531 if ($to eq $main::mycall) {
1533 $self->send(pc51($from, $to, '0'));
1535 DXXml::Ping::handle_ping_reply($self, $from);
1538 if (eph_dup($line)) {
1541 # route down an appropriate thingy
1542 $self->route($to, $line);
1546 sub handle_61 { goto &handle_11; }
1548 # dunno but route it
1557 my $call = $pc->[1];
1558 if ($call ne $main::mycall) {
1559 $self->route($call, $line);
1572 my $call = $pc->[1];
1575 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1576 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1577 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1580 $pc = [ map { unpad($_) } @$pc ];
1582 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1586 my $wcy = WCY::update($d, @$pc[2..12]);
1587 dbg("WCY: <$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');
1589 if (defined &Local::wcy) {
1592 $rep = Local::wcy($self, @$pc[1..12]);
1597 # broadcast to the eager world
1598 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1601 # remote commands (incoming)
1610 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1613 # remote command replies
1622 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1625 # decode a pc92 call: flag call : version : build
1626 sub _decode_pc92_call
1629 my @part = split /:/, $icall;
1630 my ($flag, $call) = unpack "A A*", $part[0];
1631 unless (defined $flag && $flag ge '0' && $flag le '7') {
1632 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1635 unless ($call && is_callsign($call)) {
1636 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1639 my $is_node = $flag & 4;
1640 my $is_extnode = $flag & 2;
1641 my $here = $flag & 1;
1642 my $version = $part[1] || 0;
1643 my $build = $part[2] || 0;
1644 my $ip = $part[3] || '';
1646 # remember that, at this stage, IPV6 addresses have : replaced by ,
1647 if (length $version > 4 && $version =~ /[,\.][\da-f]{1,4}/i) {
1651 $version =~ s/\D//g;
1652 $version = 0 unless $version && $version =~ /^[0-9]+$/;
1655 $build = 0 unless $build && $build =~ /^[0-9]+$/;
1658 $ip =~ s/^::ffff://i;
1659 $ip = '' unless is_ipaddr($ip);
1661 dbg("'$icall' = '" . join("', '", $call, $is_node, $is_extnode, $here, $version, $build, $ip) . "'") if isdbg('pc92');
1662 return ($call, $is_node, $is_extnode, $here, $version+0, $build+0, $ip);
1665 # decode a pc92 call: flag call : version : build
1666 sub _encode_pc92_call
1670 # plain call or value
1671 return $ref unless ref $ref;
1673 my $ext = shift || 0;
1675 my $call = $ref->call;
1677 $flag |= $ref->here ? 1 : 0;
1678 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1680 my $dxchan = DXChannel::get($call);
1681 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1682 if (($ext & 1) && $ref->version) {
1683 my $version = $ref->version || 1.0;
1684 $version = $version * 100 + 5300 if $version < 50;
1685 $extra .= ":" . $version;
1688 if (($ext & 2) && $ref->ip) {
1691 $extra .= ':' . $ip;
1694 return "$flag$call$extra";
1707 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1710 # remove spurious IPV6 prefix on IPV4 addresses
1715 my $ncall = $parent->call;
1716 if ($ncall ne $call) {
1720 # normalise call, delete any unnormalised calls in the users file.
1721 # then ignore this thingy
1722 my $normcall = normalise_call($call);
1723 if ($normcall ne $call) {
1724 next if DXChannel::get($call);
1725 $user = DXUser::get($call);
1726 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1727 $user->del if $user;
1728 $call = $normcall; # this is safe because a route add will ignore duplicates
1732 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1733 $user = check_add_user($call, 'A');
1734 @rout = $parent->add($call, $version, Route::here($here), $ip);
1735 $r = Route::Node::get($call);
1736 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1737 if ($version && is_numeric($version) && !$r->K && !$user->K) {
1738 my $old = $user->sort;
1739 if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1741 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1742 } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455))) {
1743 unless ($version > 0 && $build == 0) {
1746 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1750 $r->version($user->version) if $user->version;
1751 $r->build($user->build) if $user->build;
1752 $r->K(1) if $user->K;
1754 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1755 $user = check_add_user($call, 'U', $parent->call);
1756 @rout = $parent->add_user($call, Route::here($here), $ip);
1757 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1758 $r = Route::User::get($call);
1762 Log('DXProt', "PC92A $call -> $ip on $ncall");
1764 if ($pc92_slug_changes && $parent == $main::routeroot) {
1765 $things_add{$call} = Route::get($call);
1766 delete $things_del{$call};
1768 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1770 dbgprintring(10) if isdbg('nologchan');
1771 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1783 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1788 $ref = Route::Node::get($call);
1789 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1790 @rout = $ref->del($parent) if $ref;
1792 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1793 $ref = Route::User::get($call);
1795 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1796 @rout = $parent->del_user($ref);
1799 if ($pc92_slug_changes && $parent == $main::routeroot) {
1800 $things_del{$call} = $ref unless exists $things_add{$call};
1801 delete $things_add{$call};
1807 # this will only happen if we are slugging changes and
1808 # there are some changes to be sent, it will create an add or a delete
1810 sub gen_pc92_changes
1812 my @add = values %things_add;
1813 my @del = values %things_del;
1814 return (\@add, \@del);
1817 sub clear_pc92_changes
1819 %things_add = %things_del = ();
1820 $last_pc92_slug = $main::systime;
1829 return $_last_pc9x_id;
1834 if (!$_last_time || $_last_time != $main::systime) {
1835 $_last_time = $main::systime;
1837 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1840 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1851 # check that the time is between 0 >= $t < 86400
1852 unless ($t >= 0 && $t < 86400) {
1853 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1857 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1858 my $now = $main::systime - $main::systime_daystart ;
1859 my $diff = abs($now - $t);
1860 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1861 my $c = ref $call ? $call->call : $call;
1862 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1866 my $parent = ref $call ? $call : Route::Node::get($call);
1868 # we only do this for external calls whose routing table
1869 # record come and go. The reference for mycall is permanent
1870 # and not that frequently used, it also never times out, so
1871 # the id on it is completely unreliable. Besides, only commands
1872 # originating on this box will go through this code...
1873 if ($parent->call ne $main::mycall) {
1874 my $lastid = $parent->lastid;
1875 if (defined $lastid) {
1877 # note that this is where we determine whether this pc9x has come in yesterday
1878 # but is still greater (modulo 86400) than the lastid or is simply an old
1879 # duplicate sentence. To determine this we need to do some module 86400
1880 # arithmetic. High numbers mean that this is an old duplicate sentence,
1881 # low numbers that it is a new sentence.
1883 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1884 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1885 # 86378 respectively in the calculation below).
1887 if ($t+86400-$lastid > $pc9x_past_age) {
1888 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1891 } elsif ($t == $lastid) {
1892 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1895 # check that if we have a low number in lastid that yesterday's numbers
1896 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1897 if ($lastid+86400-$t < $pc9x_past_age) {
1898 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1905 $parent = Route::Node->new($call);
1907 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1910 if (isdbg('pc92dedupe')) {
1911 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1912 my $val = $parent->{lastid};
1913 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1914 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1916 $parent->lastid($t);
1921 sub pc92_handle_first_slot
1928 my $oparent = $parent;
1932 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1933 if ($call && $is_node) {
1934 if ($call eq $main::mycall) {
1935 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
1938 if ($call eq $main::myalias) {
1939 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
1942 # this is only accepted from my "self".
1943 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1944 # locally connected. Local nodes always take precedence. But we remember the lastid
1945 # to try to reduce the number of dupe PC92s for this external node.
1946 if (DXChannel::get($call) && $call ne $self->{call}) {
1947 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1948 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1952 # reparent to external node (note that we must have received a 'C' or 'A' record
1953 # from the true parent node for this external before we get one for the this node
1954 unless ($parent = Route::Node::get($call)) {
1955 if ($is_extnode && $oparent) {
1956 @radd = _add_thingy($oparent, $slot, $self, $hops);
1959 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1963 $parent = check_pc9x_t($call, $t, 92) || return;
1964 $parent->via_pc92(1);
1965 $parent->PC92C_dxchan($self->{call}, $hops);
1968 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1971 $parent->here(Route::here($here));
1972 $parent->version($version || $pc19_version) if $version;
1973 $parent->build($build) if $build;
1974 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1975 return ($parent, @radd);
1978 # DXSpider routing entries
1989 my $pcall = $pc->[1];
1991 my $sort = $pc->[3];
1992 my $hops = $pc->[-1];
1994 # this catches loops of A/Ds
1995 # if (eph_dup($line, $pc9x_dupe_age)) {
1999 if ($pcall eq $main::mycall) {
2000 LogDbg('err', "PCPROT: looped back, ignored");
2004 if ($pcall eq $main::myalias) {
2005 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
2009 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
2010 if ($self->{isolate}) {
2011 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
2013 } elsif (!$self->user->wantpc9x) {
2014 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
2017 $self->state('init92');
2018 $self->{do_pc9x} = 1;
2019 dbg("DXPROT: Do pc9x set on $pcall");
2022 unless ($self->{do_pc9x}) {
2023 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2027 # don't create routing entries for D records that don't already exist
2028 # this is what causes all those PC92 loops!
2029 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
2030 my $oparent = $parent;
2032 $parent->do_pc9x(1);
2033 $parent->via_pc92(1);
2035 if ($sort eq 'F' || $sort eq 'R') {
2037 # this is the route finding section
2038 # here is where the consequences of the 'find' command
2041 my $from = $pc->[4];
2042 my $target = $pc->[5];
2048 if ($ref = DXChannel::get($target)) {
2049 $flag = 1; # we are directly connected
2051 $ref = Route::get($target);
2052 $dxchan = $ref->dxchan;
2055 if ($ref && $flag && $dxchan) {
2056 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
2059 } elsif ($sort eq 'R') {
2060 if (my $dxchan = DXChannel::get($from)) {
2061 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
2063 my $ref = Route::get($from);
2065 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
2067 $_->send($line) for @dxchan;
2069 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2072 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2078 } elsif ($sort eq 'K') {
2079 $pc92Kin += length $line;
2081 # remember the last channel we arrived on
2082 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2084 my @ent = _decode_pc92_call($pc->[4]);
2089 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
2090 return unless $parent; # dupe
2092 push @radd, $add if $add;
2094 my $call = $parent->call;
2095 my $version = $ent[4] || 0;
2096 my $build = $ent[5] || 0;
2098 my $oldbuild = $parent->build || 0;
2099 my $oldversion = $parent->version || 0;
2100 my $user = check_add_user($parent->call, 'S');
2101 my $oldsort = $user->sort // '';
2103 dbg("PCPROT: PC92 K v: $version ov: $oldversion b: $build ob: $oldbuild pk: " . ($parent->K || '0') . " uk: " . ($user->K || 0)) if isdbg('pc92k');
2105 if (is_numeric($version) || is_numeric($build)) {
2107 if (($oldversion ne $version || $build ne $oldbuild)) {
2108 dbg("PCPROT: PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild)");
2109 $user->version($parent->version($version));
2110 $user->build($parent->build($build));
2113 if ($oldsort ne 'S') {
2114 dbg("PCPROT: PC92 K node $call updated sort: $sort (was $oldsort)");
2119 dbg("PCPROT: PC92 K node $call updated - marked as PC92 K user");
2123 $user->put if $changed;
2124 $parent->K(1); # mark this as come in on a K
2126 dbg("DXProt PC92 K version call $call: invalid version: '$version' or build: '$version', ignored");
2128 dbg("ROUTE: reset obscount on $call now " . $parent->obscount) if isdbg('obscount');
2130 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2132 $pc92Ain += length $line if $sort eq 'A';
2133 $pc92Cin += length $line if $sort eq 'C';
2134 $pc92Din += length $line if $sort eq 'D';
2136 # remember the last channel we arrived on
2137 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2139 # this is the main route section
2140 # here is where all the routes are created and destroyed
2142 # cope with missing duplicate node calls in the first slot
2143 my $me = $pc->[4] || '';
2144 $me ||= _encode_pc92_call($parent) unless $me ;
2146 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2150 # look at the first one which will always be a node of some sort
2151 # except in the case of 'A' or 'D' in which the $pcall is used
2152 # otherwise use the node call and update any information
2153 # that needs to be done.
2156 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2157 return unless $parent; # dupe
2160 push @radd, $add if $add;
2163 # do a pass through removing any references to either mycall
2167 next unless $_ && @$_;
2168 if ($_->[0] eq $main::mycall) {
2169 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2172 if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
2173 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2182 push @radd, _add_thingy($parent, $_, $self, $hops);
2184 } elsif ($sort eq 'D') {
2186 push @rdel, _del_thingy($parent, $_, $self);
2188 } elsif ($sort eq 'C') {
2189 my (@nodes, @users);
2191 # we reset obscounts on config records as well as K records
2193 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2196 foreach my $r (@nent) {
2197 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2200 push @nodes, $r->[0];
2202 push @users, $r->[0];
2205 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2209 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2212 foreach my $r (@nent) {
2215 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2219 foreach my $r (@$dnodes) {
2220 push @rdel,_del_thingy($parent, [$r, 1], $self);
2222 foreach my $r (@$dusers) {
2223 push @rdel,_del_thingy($parent, [$r, 0], $self);
2226 # remember this last PC92C for rebroadcast on demand
2227 $parent->last_PC92C($line);
2229 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2233 foreach my $r (@rdel) {
2236 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2237 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2239 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2240 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2241 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2242 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2243 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2246 # broadcast it if we get here
2247 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2250 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2251 # might be on two or more nodes at the same time or that there may be more than
2252 # one equal distance neighbour to a node.
2254 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2255 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2256 # each and then combined to give a set of dxchans to send the PC9x record down
2258 sub find_pc9x_routes
2261 my $ref = Route::get($to);
2265 if ($ref->isa('Route::User')) {
2266 my $dxchan = DXChannel::get($to);
2267 push @parent, $to if $dxchan;
2268 push @parent, $ref->parents;
2272 foreach my $p (@parent) {
2274 my @routes = Route::findroutes($p);
2275 foreach my $r (@routes) {
2276 $lasthops = $r->[0] unless defined $lasthops;
2277 if ($r->[0] == $lasthops) {
2278 $cand{$r->[1]->call} = $r->[1];
2284 return values %cand;
2295 # $self->{do_pc9x} ||= 1;
2297 my $pcall = $pc->[1]; # this is now checked earlier
2299 # remember that we are converting PC10->PC93 and self will be $main::me if it
2301 unless ($self->{do_pc9x}) {
2302 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2307 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2309 my $to = uc $pc->[3];
2310 my $from = uc $pc->[4];
2311 my $via = uc $pc->[5];
2312 my $text = $pc->[6];
2313 my $onode = uc $pc->[7];
2314 $onode = $pcall if @$pc <= 8;
2316 # this is catch loops caused by bad software ...
2317 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2321 if (isdbg('progress')) {
2322 my $vs = $via ne '*' ? " via $via" : '';
2323 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2327 # if this is a 'bad spotter' user then ignore it
2329 $nossid =~ s/-\d+$//;
2330 if ($badspotter->in($nossid)) {
2331 dbg($line) if isdbg('nologchan');
2332 dbg("PCPROT: Bad Spotter, dropped");
2336 # ignore PC93 coming in from outside this node with a target of local
2337 if ($to eq 'LOCAL' && $self != $main::me) {
2338 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2342 # will we allow it at all?
2345 if (@bad = BadWords::check($text)) {
2346 my $bw = join ', ', @bad;
2347 dbg($line) if isdbg('nologchan');
2348 dbg("PCPROT: Badwords: '$bw', dropped");
2353 # if it is routeable then then treat it like a talk
2354 my $ref = Route::get($to);
2358 # convert to PC10 or local talks where appropriate
2359 # PC93 capable nodes of the same hop count all get a copy
2360 # if there is a PC10 node then it will get a copy and that
2361 # will be it. Hopefully such a node will not figure highly
2362 # in the route list, unless it is local, 'cos it don't issue PC92s!
2363 # note that both local and PC93s at the same time are possible if the
2364 # user on more than one node.
2365 my @routes = find_pc9x_routes($to);
2367 foreach $dxchan (@routes) {
2368 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2369 if ($dxchan->{do_pc9x}) {
2370 $dxchan->send($line);
2372 $dxchan->talk($from, $to, $via, $text, $onode);
2375 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2380 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2382 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2383 my $wx = $to eq 'WX' ? '1' : '0';
2384 my $local = $via eq 'LOCAL' ? '*' : $via;
2386 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2387 return if $via eq 'LOCAL';
2388 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2389 # chat messages really only locally connected users
2390 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2393 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2394 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2397 # if get here then rebroadcast the thing with its Hop count decremented (if
2398 # there is one). If it has a hop count and it decrements to zero then don't
2401 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2413 unless (eph_dup($line)) {
2415 my $pcall = $pc->[1];
2416 unless (is_callsign($pcall)) {
2417 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2421 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2422 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2424 unless ($self->{isolate}) {
2425 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me