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');
258 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
260 my $key = join '|', @spot[0..2,4,7]; # not including text
267 if ($key eq $pc11_saved->[0]) {
269 my $percent = $pc11_rx ? $pc11_to_61 * 100 / $pc11_rx : 0;
270 dbg(sprintf("recurse: $recurse saved PC11 spot $key dumped, better pc61 received pc61: $pc61_rx pc11: $pc11_rx -> pc61: $pc11_to_61 (%0.1f\%)", $percent)) if isdbg("pc11");
280 if ($key eq $pc11_saved->[0]) {
281 dbg("recurse: $recurse saved PC11 spot $key, dupe pc11 received and dumped") if isdbg("pc11");
282 return; # because it's a dup
286 # can we promote this to a PC61?
287 my $r = Route::User::get($spot[4]); # find spotter
288 if ($r && $r->ip) { # do we have an ip addres
289 $pcno = 61; # now turn this into a PC61
292 my $percent = $pc11_rx ? $rpc11_to_61 * 100 / $pc11_rx : 0;
293 dbg(sprintf("recurse: $recurse PC11 spot $key promoted to pc61 ip $spot[14] pc61: $pc61_rx pc11: $pc11_rx -> pc61 $pc11_to_61 (%0.1f\%)", $percent)) if isdbg("pc11");
297 # if it is STILL (despite all efforts to change it) a PC11
299 if ($pc11_saved && $key ne $pc11_saved->[0]) {
300 dbg("recurse: $recurse NEW PC11 spot $key ne $pc11_saved->[0], recursing") if isdbg("pc11");
301 # shift @$pc11_saved; # saved key
302 my $self = $pc11_saved->[1];
303 my @saved = @$pc11_saved[2..5];
304 $self->handle_11(@saved, 1);
307 $pc11_saved = [$key, $self, $pcno, $line, $origin, $pc];
308 $pc11_saved_time = $main::systime;
309 dbg("recurse: $recurse saved new PC11 spot $key for a better offer") if isdbg("pc11");
314 my $count = $pc11_to_61+$rpc11_to_61;
315 my $percent = $pc11_rx ? $count*100 / $pc11_rx : 0;
316 dbg(sprintf("recurse: $recurse PC61 spot $key passed onward pc61: $pc61_rx pc11: $pc11_rx -> pc61: $count (%0.1f\%)", $percent)) if isdbg("pc11");
323 # this goes after the input filtering, but before the add
324 # so that if it is input filtered, it isn't added to the dup
325 # list. This allows it to come in from a "legitimate" source
326 if (Spot::dup(@spot[0..4,7])) {
327 dbg("PCPROT: Duplicate Spot $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot');
331 # we check IP addresses for PC61 - this will also dedupe PC11 copies
332 if (@$pc > 8 && is_ipaddr($pc->[8])) {
336 if (DXCIDR::find($ip)) {
337 dbg($line) if isdbg('nologchan');
338 dbg("PCPROT: $ip in badip list, dropped");
344 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
345 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
346 # to be current once we have seen the first PC92C from that node.
348 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
351 my $nroute = Route::Node::get($pc->[7]);
352 my $uroute = Route::Node::get($pc->[6]);
353 my $local = DXChannel::get($pc->[7]);
355 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
357 my $ip = $pcno == 61 ? $pc->[8] : '';
358 # $s .= "User $pc->[6] not logged in, " unless $uroute;
359 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
360 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
362 my $action = $senderverify > 1 ? ", DUMPED" : '';
364 dbg("PCPROT: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
365 return unless $senderverify < 2;
370 # we until here to do any censorship to try and reduce the amount of noise that repeated copies
371 # from other connected nodes cause
374 if (@bad = BadWords::check($pc->[5])) {
375 my $bw = join ', ', @bad;
376 dbg($line) if isdbg('nologchan');
377 dbg("PCPROT: Badwords: '$bw', dropped");
387 $ip ||= $spot[14] if exists $spot[14];
388 if (isdbg('progress')) {
389 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
391 my $d = ztime($spot[2]);
392 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
393 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
394 $s .= " route: $origin";
399 # @spot at this point contains:-
400 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
401 # then spotted itu, spotted cq, spotters itu, spotters cq
402 # you should be able to route on any of these
405 # fix up qra locators of known users
406 my $user = DXUser::get_current($spot[4]);
408 my $qra = $user->qra;
409 unless ($qra && is_qra($qra)) {
410 my $lat = $user->lat;
411 my $long = $user->long;
412 if (defined $lat && defined $long) {
413 $user->qra(DXBearing::lltoqra($lat, $long));
418 # send a remote command to a distant cluster if it is visible and there is no
419 # qra locator and we havn't done it for a month.
421 unless ($user->qra) {
423 my $to = $user->homenode;
424 my $last = $user->lastoper || 0;
425 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
426 my $cmd = "forward/opernam $spot[4]";
427 # send the rcmd but we aren't interested in the replies...
428 my $dxchan = $node->dxchan;
429 if ($dxchan && $dxchan->is_clx) {
430 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
432 route(undef, $to, pc34($main::mycall, $to, $cmd));
434 if ($to ne $origin) {
436 $node = Route::Node::get($to);
438 $dxchan = $node->dxchan;
439 if ($dxchan && $dxchan->is_clx) {
440 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
442 route(undef, $to, pc34($main::mycall, $to, $cmd));
446 $user->lastoper($main::systime);
452 # cancel any recursion as we have now processed it
454 if ($pc11_saved && $key eq $pc11_saved->[0]) {
455 dbg("recurse: $recurse key: $key saved_key: $pc11_saved->[0] removed") if isdbg('pc11');
462 if (defined &Local::spot) {
465 $r = Local::spot($self, @spot);
470 # DON'T be silly and send on PC26s!
471 return if $pcno == 26;
473 # send out the filtered spots
474 send_dx_spot($self, $line, @spot) if @spot;
479 # used to kick outstanding PC11 if required
482 if ($pc11_saved && $main::systime > $pc11_saved_time + $pc11_dwell_time) {
483 dbg("saved PC11 spot $pc11_saved->[0] timed out waiting, recursing") if isdbg("pc11");
484 shift @$pc11_saved; # saved key
485 my $self = shift @$pc11_saved;
486 my @saved = @$pc11_saved;
488 $self->handle_11(@saved, 1);
501 # announce duplicate checking
502 $pc->[3] =~ s/^\s+//; # remove leading blanks
504 # if this is a 'nodx' node then ignore it
505 if ($badnode->in($pc->[5])) {
506 dbg($line) if isdbg('nologchan');
507 dbg("PCPROT: Bad Node, dropped");
511 # if this is a 'bad spotter' user then ignore it
512 my $nossid = $pc->[1];
513 $nossid =~ s/-\d+$//;
514 if ($badspotter->in($nossid)) {
515 dbg($line) if isdbg('nologchan');
516 dbg("PCPROT: Bad Spotter, dropped");
520 # ignore PC12s from origins that use PCxx protocol
521 my $oref = Route::get($origin);
522 if ($oref->do_pc9x) {
523 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
529 if (@bad = BadWords::check($pc->[3])) {
530 my $bw = join ', ', @bad;
531 dbg($line) if isdbg('nologchan');
532 dbg("PCPROT: Badwords: '$bw', dropped");
540 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
541 $self->send_chat(0, $line, @$pc[1..6]);
542 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
544 # ignore something that looks like a chat line coming in with sysop
545 # flag - this is a kludge...
546 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
547 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
551 # here's a bit of fun, convert incoming ann with a callsign in the first word
552 # or one saying 'to <call>' to a talk if we can route to the recipient
554 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
556 my $ref = Route::get($call);
558 $dxchan = $ref->dxchan;
559 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
566 $self->send_announce(0, $line, @$pc[1..6]);
568 $self->route($pc->[2], $line);
572 if (defined &Local::ann) {
575 $r = Local::ann($self, $line, @$pc[1..6]);
589 if (eph_dup($line, $eph_pc15_restime)) {
592 unless ($self->{isolate}) {
593 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
609 my $ncall = $pc->[1];
610 my $newline = "PC16^";
612 # dos I want users from this channel?
613 unless ($self->user->wantpc16) {
614 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
619 if ($ncall eq $main::mycall) {
620 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
625 $h = 1 if DXChannel::get($ncall);
626 if ($h && $self->{call} ne $ncall) {
627 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
631 if (eph_dup($line)) {
635 # isolate now means only accept stuff from this call only
636 if ($self->{isolate} && $ncall ne $self->{call}) {
637 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
641 my $parent = Route::Node::get($ncall);
644 $dxchan = $parent->dxchan;
645 if ($dxchan && $dxchan ne $self) {
646 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
650 # input filter if required
651 return unless $self->in_filter_route($parent);
653 $parent = Route::Node->new($ncall);
657 if ($parent->via_pc92) {
658 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
665 for ($i = 2; $i < $#$pc; $i++) {
666 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
667 next unless $call && $conf && defined $here && is_callsign($call);
668 next if $call eq $main::mycall;
670 eph_del_regex("^PC17\\^$call\\^$ncall");
672 $conf = $conf eq '*';
674 # reject this if we think it is a node already
675 my $r = Route::Node::get($call);
676 my $u = DXUser::get_current($call) unless $r;
677 if ($r || ($u && $u->is_node)) {
678 dbg("PCPROT: $call is a node") if isdbg('chanerr');
682 $r = Route::User::get($call);
683 my $flags = Route::here($here)|Route::conf($conf);
686 my $au = $r->addparent($parent);
687 if ($r->flags != $flags) {
691 push @rout, $r if $h && $au;
693 my @ans = $parent->add_user($call, $flags);
694 push @rout, @ans if $h && @ans;
697 # add this station to the user database, if required
698 my $user = DXUser::get_current($ncall);
699 $user = DXUser->new($call) unless $user;
700 $user->homenode($parent->call) if !$user->homenode;
701 $user->node($parent->call);
702 $user->lastin($main::systime) unless DXChannel::get($call);
705 # send info to all logged in thingies
706 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
707 $self->tell_buddies('loginb', $call, $ncall);
710 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
711 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
725 my $ncall = $pc->[2];
726 my $ucall = $pc->[1];
728 eph_del_regex("^PC16\\^$ncall.*$ucall");
730 # do I want users from this channel?
731 unless ($self->user->wantpc16) {
732 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
736 if ($ncall eq $main::mycall) {
737 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
741 # isolate now means only accept stuff from this call only
742 if ($self->{isolate} && $ncall ne $self->{call}) {
743 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
747 my $uref = Route::User::get($ucall);
749 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
752 my $parent = Route::Node::get($ncall);
754 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
758 $dxchan = DXChannel::get($ncall);
759 if ($dxchan && $dxchan ne $self) {
760 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
765 if ($parent->via_pc92) {
766 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
771 if (DXChannel::get($ucall)) {
772 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
776 # input filter if required and then remove user if present
777 # return unless $self->in_filter_route($parent);
778 $parent->del_user($uref);
780 # send info to all logged in thingies
781 my $user = DXUser::get_current($ncall);
782 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
783 $self->tell_buddies('logoutb', $ucall, $ncall);
785 if (eph_dup($line)) {
789 $self->route_pc17($origin, $line, $parent, $uref);
790 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
802 $self->state('init');
804 my $parent = Route::Node::get($self->{call});
806 # record the type and version offered
807 if (my ($software, $version) = $pc->[1] =~ /(DXSpider|CC\s*Cluster)\s+Version: (\d+(?:\.\d+)?)/i) {
809 $version += 53 if $version < 6;
810 $self->{version} = $version;
811 $self->user->version($version);
812 $parent->version($version);
813 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
815 $self->{build} = $build;
816 $self->user->build($build);
817 $parent->build($build);
818 dbg("$self->{call} = $software version $version build $build");
819 unless ($self->is_spider) {
820 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
821 $self->user->sort('S');
825 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
827 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
828 $self->version(50.0);
829 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
830 $self->user->version($self->version);
833 if ($pc->[1] =~ /CC\*Cluster/i || $pc->[1] =~ /\bpc9x/i) {
834 if ($self->{isolate}) {
835 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
836 } elsif (!$self->user->wantpc9x) {
837 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
839 $self->{do_pc9x} = 1;
840 dbg("$self->{call} Set do PC9x");
844 # first clear out any nodes on this dxchannel
845 my @rout = $parent->del_nodes;
846 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
847 $self->send_local_config();
855 my $homenode = shift;
857 # add this station to the user database, if required (don't remove SSID from nodes)
858 my $user = DXUser::get_current($call);
860 $user = DXUser->new($call);
861 $user->sort($type || 'U');
862 if ($user->is_node) {
863 $user->priv(1); # I have relented and defaulted nodes
864 $user->lockout(1) if $user->is_node;
866 $user->homenode($homenode) if $homenode;
867 $user->node($homenode);
870 $user->lastin($main::systime); # this make it last longer than just this invocation
871 $user->put; # just to make sure it gets written away!!!
872 dbg("DXProt: PC92 new user record for $call created");
875 # this is to fix a problem I introduced some build ago by using this function for users
876 # whereas it was only being used for nodes.
877 if ($user->is_user && $user->lockout && ($user->priv // 0) == 1) {
880 dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
886 # incoming cluster list
896 my $newline = "PC19^";
899 my (@rout, @pc92out);
901 # first get the INTERFACE node
902 my $parent = Route::Node::get($self->{call});
904 dbg("PCPROT: my parent $self->{call} has disappeared");
913 # We are making a major change from now on. We are only going to accept
914 # PC19s from directly connected nodes. This means that we are probably
915 # going to throw away most of the data that we are being sent.
917 # The justification for this is that most of it is wrong or out of date
920 # From now on we are only going to believe PC92 data and locally connected
923 for ($i = 1; $i < $#$pc-1; $i += 4) {
924 my $here = $pc->[$i];
925 my $call = uc $pc->[$i+1];
926 my $conf = $pc->[$i+2];
927 my $ver = $pc->[$i+3];
928 next unless defined $here && defined $conf && is_callsign($call);
930 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
932 # check for sane parameters
933 # $ver = 5000 if $ver eq '0000';
934 next unless $ver && $ver =~ /^\d+$/;
935 next if $ver < 5000; # only works with version 5 software
936 next if length $call < 3; # min 3 letter callsigns
937 next if $call eq $main::mycall || $call eq $main::myalias;
939 # check that this PC19 isn't trying to alter the wrong dxchan
941 my $dxchan = DXChannel::get($call);
943 if ($dxchan == $self) {
946 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
951 # isolate now means only accept stuff from this call only
952 if ($self->{isolate} && $call ne $self->{call}) {
953 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
957 my $user = check_add_user($call, 'A');
959 # if (eph_dup($genline)) {
960 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
966 if ($parent->via_pc92) {
967 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
972 my $r = Route::Node::get($call);
973 my $flags = Route::here($here)|Route::conf($conf);
975 # modify the routing table if it is in it, otherwise store it in the pc19list for now
978 if ($call ne $parent->call) {
979 if ($self->in_filter_route($r)) {
980 $ar = $parent->add($call, $ver, $flags);
981 # push @rout, $ar if $ar;
986 if ($r->version ne $ver || $r->flags != $flags) {
992 if ($call eq $self->{call} || $user->wantroutepc19) {
993 my $new = Route->new($call); # throw away
994 if ($self->in_filter_route($new)) {
995 my $ar = $parent->add($call, $ver, $flags);
996 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
997 push @rout, $ar if $ar;
998 push @pc92out, $r if $h;
1005 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
1006 my $mref = DXMsg::get_busy($call);
1007 $mref->stop_msg($call) if $mref;
1009 $user->lastin($main::systime) unless DXChannel::get($call);
1013 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
1014 # but remember there will only be one (pair) these because any extras will be
1017 # $self->route_pc21($self->{call}, $line, @rout);
1018 $self->route_pc19($self->{call}, $line, @rout);
1020 if (@pc92out && !$pc92_slug_changes) {
1021 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
1025 # send local configuration
1034 if ($self->{do_pc9x} && $self->{state} ne 'init92' && $self->{state} ne 'normal') {
1035 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1036 $self->{do_pc9x} = 0;
1038 $self->send_local_config;
1039 $self->send(pc22());
1040 $self->state('normal');
1041 $self->{lastping} = 0;
1042 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1045 # delete a cluster from the list
1047 # This should never occur for directly connected nodes.
1057 my $call = uc $pc->[1];
1059 eph_del_regex("^PC1[679].*$call");
1061 # if I get a PC21 from the same callsign as self then ignore it
1062 if ($call eq $self->{call}) {
1063 dbg("PCPROT: self referencing PC21 from $self->{call}");
1067 # for the above reason and also because of the check for PC21s coming
1068 # in for self->call from outside being ignored further down
1069 # we don't need any isolation code here, because we will never
1070 # act on a PC21 with self->call in it.
1072 my $parent = Route::Node::get($self->{call});
1074 dbg("PCPROT: my parent $self->{call} has disappeared");
1081 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
1082 my $node = Route::Node::get($call);
1085 if ($node->via_pc92) {
1086 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1090 my $dxchan = DXChannel::get($call);
1091 if ($dxchan && $dxchan != $self) {
1092 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1097 return unless $self->in_filter_route($node);
1099 # routing objects, force a PC21 if it is local
1100 push @rout, $node->del($parent);
1101 push @rout, $call if $dxchan && @rout == 0;
1104 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1108 if (eph_dup($line)) {
1113 $self->route_pc21($origin, $line, @rout);
1114 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1127 if ($self->{do_pc9x}) {
1128 if ($self->{state} ne 'init92' && $self->{state} ne 'normal') {
1129 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1130 $self->{do_pc9x} = 0;
1133 $self->{lastping} = 0;
1134 $self->state('normal');
1135 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1147 # route foreign' pc27s
1149 if ($pc->[8] ne $main::mycall) {
1150 $self->route($pc->[8], $line);
1157 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1158 my $sfi = unpad($pc->[3]);
1159 my $k = unpad($pc->[4]);
1160 my $i = unpad($pc->[5]);
1161 my ($r) = $pc->[6] =~ /R=(\d+)/;
1163 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1164 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1168 # global wwv filtering on INPUT
1169 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1170 if ($self->{inwwvfilter}) {
1171 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1173 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1177 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1178 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1179 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1183 # note this only takes the first one it gets
1184 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1185 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1187 if (defined &Local::wwv) {
1190 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1195 # DON'T be silly and send on PC27s!
1196 return if $pcno == 27;
1198 # broadcast to the eager world
1199 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1211 my $call = uc $pc->[1];
1213 $nref = Route::Node::get($call);
1214 $uref = Route::User::get($call);
1215 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1217 if (eph_dup($line)) {
1221 $nref->here($pc->[2]) if $nref;
1222 $uref->here($pc->[2]) if $uref;
1223 my $ref = $nref || $uref;
1224 return unless $self->in_filter_route($ref);
1226 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1238 if ($pc->[1] ne $main::mycall) {
1239 $self->route($pc->[1], $line);
1242 if ($pc->[2] eq $main::mycall) {
1243 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1247 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1251 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1254 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1260 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1263 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1268 sub handle_26 {goto &handle_11}
1269 sub handle_27 {goto &handle_23}
1271 # mail/file handling
1280 if ($pc->[1] eq $main::mycall) {
1282 my $sub = "DXMsg::handle_$pcno";
1285 $self->route($pc->[1], $line) unless $self->is_clx;
1289 sub handle_29 {goto &handle_28}
1290 sub handle_30 {goto &handle_28}
1291 sub handle_31 {goto &handle_28}
1292 sub handle_32 {goto &handle_28}
1293 sub handle_33 {goto &handle_28}
1303 if (eph_dup($line, $eph_pc34_restime)) {
1306 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1310 # remote command replies
1319 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1320 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1323 sub handle_36 {goto &handle_34}
1334 if ($pc->[1] eq $main::mycall) {
1336 my $sub = "DXDb::handle_$pcno";
1339 $self->route($pc->[1], $line) unless $self->is_clx;
1343 # node connected list from neighbour
1353 # incoming disconnect
1362 if ($pc->[1] eq $self->{call}) {
1363 $self->disconnect(1);
1365 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1369 sub handle_40 {goto &handle_28}
1380 my $call = $pc->[1];
1381 my $sort = $pc->[2];
1384 my $l = "PC41^$call^$sort";
1385 if (eph_dup($l, $eph_info_restime)) {
1389 # input filter if required
1390 # my $ref = Route::get($call) || Route->new($call);
1391 # return unless $self->in_filter_route($ref);
1393 if ($val eq $sort || $val =~ /^\s*$/) {
1394 dbg('PCPROT: invalid value') if isdbg('chanerr');
1398 if ($call eq $main::mycall || $call eq $main::myalias) {
1399 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1402 my $chan = DXChannel::get($call);
1404 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1408 # add this station to the user database, if required
1409 my $user = DXUser::get_current($call);
1410 $user = DXUser->new($call) unless $user;
1413 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1414 dbg("PCPROT: invalid name") if isdbg('chanerr');
1418 } elsif ($sort == 2) {
1420 } elsif ($sort == 3) {
1421 if (is_latlong($val)) {
1422 my ($lat, $long) = DXBearing::stoll($val);
1423 $user->lat($lat) if $lat;
1424 $user->long($long) if $long;
1425 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1427 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1430 } elsif ($sort == 4) {
1431 $user->homenode($val);
1432 } elsif ($sort == 5) {
1433 if (is_qra(uc $val)) {
1434 my ($lat, $long) = DXBearing::qratoll(uc $val);
1435 $user->lat($lat) if $lat && !$user->lat;
1436 $user->long($long) if $long && !$user->long;
1437 $user->qra(uc $val);
1439 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1443 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1446 unless ($self->{isolate}) {
1447 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1450 # perhaps this IS what we want after all
1451 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1454 sub handle_42 {goto &handle_28}
1458 sub handle_44 {goto &handle_37}
1459 sub handle_45 {goto &handle_37}
1460 sub handle_46 {goto &handle_37}
1461 sub handle_47 {goto &handle_37}
1462 sub handle_48 {goto &handle_37}
1464 # message and database
1473 if (eph_dup($line)) {
1477 if ($pc->[1] eq $main::mycall) {
1478 DXMsg::handle_49($self, @$pc);
1480 $self->route($pc->[1], $line) unless $self->is_clx;
1484 # keep alive/user list
1493 return if (eph_dup($line));
1495 my $call = $pc->[1];
1497 my $node = Route::Node::get($call);
1499 return unless $node->call eq $self->{call};
1500 $node->usercount($pc->[2]) unless $node->users;
1502 $node->PC92C_dxchan($self->call, $pc->[-1]);
1504 # input filter if required
1505 # return unless $self->in_filter_route($node);
1507 unless ($self->{isolate}) {
1508 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1510 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1514 # incoming ping requests/answers
1524 my $from = $pc->[2];
1525 my $flag = $pc->[3];
1527 if ($to eq $main::myalias) {
1528 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1533 if ($to eq $main::mycall) {
1535 $self->send(pc51($from, $to, '0'));
1537 DXXml::Ping::handle_ping_reply($self, $from);
1540 if (eph_dup($line)) {
1543 # route down an appropriate thingy
1544 $self->route($to, $line);
1548 sub handle_61 { goto &handle_11; }
1550 # dunno but route it
1559 my $call = $pc->[1];
1560 if ($call ne $main::mycall) {
1561 $self->route($call, $line);
1574 my $call = $pc->[1];
1577 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1578 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1579 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1582 $pc = [ map { unpad($_) } @$pc ];
1584 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1588 my $wcy = WCY::update($d, @$pc[2..12]);
1589 dbg("WCY: <$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');
1591 if (defined &Local::wcy) {
1594 $rep = Local::wcy($self, @$pc[1..12]);
1599 # broadcast to the eager world
1600 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1603 # remote commands (incoming)
1612 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1615 # remote command replies
1624 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1627 # decode a pc92 call: flag call : version : build
1628 sub _decode_pc92_call
1631 my @part = split /:/, $icall;
1632 my ($flag, $call) = unpack "A A*", $part[0];
1633 unless (defined $flag && $flag ge '0' && $flag le '7') {
1634 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1637 unless ($call && is_callsign($call)) {
1638 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1641 my $is_node = $flag & 4;
1642 my $is_extnode = $flag & 2;
1643 my $here = $flag & 1;
1644 my $version = $part[1] || 0;
1645 my $build = $part[2] || 0;
1646 my $ip = $part[3] || '';
1648 # remember that, at this stage, IPV6 addresses have : replaced by ,
1649 if (length $version > 4 && $version =~ /[,\.][\da-f]{1,4}/i) {
1653 $version =~ s/\D//g;
1654 $version = 0 unless $version && $version =~ /^[0-9]+$/;
1657 $build = 0 unless $build && $build =~ /^[0-9]+$/;
1660 $ip =~ s/^::ffff://i;
1661 $ip = '' unless is_ipaddr($ip);
1663 dbg("'$icall' = '" . join("', '", $call, $is_node, $is_extnode, $here, $version, $build, $ip) . "'") if isdbg('pc92');
1664 return ($call, $is_node, $is_extnode, $here, $version+0, $build+0, $ip);
1667 # decode a pc92 call: flag call : version : build
1668 sub _encode_pc92_call
1672 # plain call or value
1673 return $ref unless ref $ref;
1675 my $ext = shift || 0;
1677 my $call = $ref->call;
1679 $flag |= $ref->here ? 1 : 0;
1680 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1682 my $dxchan = DXChannel::get($call);
1683 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1684 if (($ext & 1) && $ref->version) {
1685 my $version = $ref->version || 1.0;
1686 $version = $version * 100 + 5300 if $version < 50;
1687 $extra .= ":" . $version;
1690 if (($ext & 2) && $ref->ip) {
1693 $extra .= ':' . $ip;
1696 return "$flag$call$extra";
1709 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1712 # remove spurious IPV6 prefix on IPV4 addresses
1717 my $ncall = $parent->call;
1718 if ($ncall ne $call) {
1722 # normalise call, delete any unnormalised calls in the users file.
1723 # then ignore this thingy
1724 my $normcall = normalise_call($call);
1725 if ($normcall ne $call) {
1726 next if DXChannel::get($call);
1727 $user = DXUser::get($call);
1728 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1729 $user->del if $user;
1730 $call = $normcall; # this is safe because a route add will ignore duplicates
1734 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1735 $user = check_add_user($call, 'A');
1736 @rout = $parent->add($call, $version, Route::here($here), $ip);
1737 $r = Route::Node::get($call);
1738 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1739 if ($version && is_numeric($version) && !$r->K && !$user->K) {
1740 my $old = $user->sort;
1741 if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1743 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1744 } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455))) {
1745 unless ($version > 0 && $build == 0) {
1748 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1752 $r->version($user->version) if $user->version;
1753 $r->build($user->build) if $user->build;
1754 $r->K(1) if $user->K;
1756 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1757 $user = check_add_user($call, 'U', $parent->call);
1758 @rout = $parent->add_user($call, Route::here($here), $ip);
1759 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1760 $r = Route::User::get($call);
1764 Log('DXProt', "PC92A $call -> $ip on $ncall");
1766 if ($pc92_slug_changes && $parent == $main::routeroot) {
1767 $things_add{$call} = Route::get($call);
1768 delete $things_del{$call};
1770 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1772 dbgprintring(10) if isdbg('nologchan');
1773 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1785 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1790 $ref = Route::Node::get($call);
1791 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1792 @rout = $ref->del($parent) if $ref;
1794 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1795 $ref = Route::User::get($call);
1797 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1798 @rout = $parent->del_user($ref);
1801 if ($pc92_slug_changes && $parent == $main::routeroot) {
1802 $things_del{$call} = $ref unless exists $things_add{$call};
1803 delete $things_add{$call};
1809 # this will only happen if we are slugging changes and
1810 # there are some changes to be sent, it will create an add or a delete
1812 sub gen_pc92_changes
1814 my @add = values %things_add;
1815 my @del = values %things_del;
1816 return (\@add, \@del);
1819 sub clear_pc92_changes
1821 %things_add = %things_del = ();
1822 $last_pc92_slug = $main::systime;
1831 return $_last_pc9x_id;
1836 if (!$_last_time || $_last_time != $main::systime) {
1837 $_last_time = $main::systime;
1839 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1842 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1853 # check that the time is between 0 >= $t < 86400
1854 unless ($t >= 0 && $t < 86400) {
1855 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1859 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1860 my $now = $main::systime - $main::systime_daystart ;
1861 my $diff = abs($now - $t);
1862 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1863 my $c = ref $call ? $call->call : $call;
1864 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1868 my $parent = ref $call ? $call : Route::Node::get($call);
1870 # we only do this for external calls whose routing table
1871 # record come and go. The reference for mycall is permanent
1872 # and not that frequently used, it also never times out, so
1873 # the id on it is completely unreliable. Besides, only commands
1874 # originating on this box will go through this code...
1875 if ($parent->call ne $main::mycall) {
1876 my $lastid = $parent->lastid;
1877 if (defined $lastid) {
1879 # note that this is where we determine whether this pc9x has come in yesterday
1880 # but is still greater (modulo 86400) than the lastid or is simply an old
1881 # duplicate sentence. To determine this we need to do some module 86400
1882 # arithmetic. High numbers mean that this is an old duplicate sentence,
1883 # low numbers that it is a new sentence.
1885 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1886 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1887 # 86378 respectively in the calculation below).
1889 if ($t+86400-$lastid > $pc9x_past_age) {
1890 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1893 } elsif ($t == $lastid) {
1894 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1897 # check that if we have a low number in lastid that yesterday's numbers
1898 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1899 if ($lastid+86400-$t < $pc9x_past_age) {
1900 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1907 $parent = Route::Node->new($call);
1909 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1912 if (isdbg('pc92dedupe')) {
1913 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1914 my $val = $parent->{lastid};
1915 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1916 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1918 $parent->lastid($t);
1923 sub pc92_handle_first_slot
1930 my $oparent = $parent;
1934 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1935 if ($call && $is_node) {
1936 if ($call eq $main::mycall) {
1937 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
1940 if ($call eq $main::myalias) {
1941 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
1944 # this is only accepted from my "self".
1945 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1946 # locally connected. Local nodes always take precedence. But we remember the lastid
1947 # to try to reduce the number of dupe PC92s for this external node.
1948 if (DXChannel::get($call) && $call ne $self->{call}) {
1949 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1950 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1954 # reparent to external node (note that we must have received a 'C' or 'A' record
1955 # from the true parent node for this external before we get one for the this node
1956 unless ($parent = Route::Node::get($call)) {
1957 if ($is_extnode && $oparent) {
1958 @radd = _add_thingy($oparent, $slot, $self, $hops);
1961 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1965 $parent = check_pc9x_t($call, $t, 92) || return;
1966 $parent->via_pc92(1);
1967 $parent->PC92C_dxchan($self->{call}, $hops);
1970 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1973 $parent->here(Route::here($here));
1974 $parent->version($version || $pc19_version) if $version;
1975 $parent->build($build) if $build;
1976 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1977 return ($parent, @radd);
1980 # DXSpider routing entries
1991 my $pcall = $pc->[1];
1993 my $sort = $pc->[3];
1994 my $hops = $pc->[-1];
1996 # this catches loops of A/Ds
1997 # if (eph_dup($line, $pc9x_dupe_age)) {
2001 if ($pcall eq $main::mycall) {
2002 LogDbg('err', "PCPROT: looped back, ignored");
2006 if ($pcall eq $main::myalias) {
2007 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
2011 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
2012 if ($self->{isolate}) {
2013 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
2015 } elsif (!$self->user->wantpc9x) {
2016 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
2019 $self->state('init92');
2020 $self->{do_pc9x} = 1;
2021 dbg("DXPROT: Do pc9x set on $pcall");
2024 unless ($self->{do_pc9x}) {
2025 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2029 # don't create routing entries for D records that don't already exist
2030 # this is what causes all those PC92 loops!
2031 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
2032 my $oparent = $parent;
2034 $parent->do_pc9x(1);
2035 $parent->via_pc92(1);
2037 if ($sort eq 'F' || $sort eq 'R') {
2039 # this is the route finding section
2040 # here is where the consequences of the 'find' command
2043 my $from = $pc->[4];
2044 my $target = $pc->[5];
2050 if ($ref = DXChannel::get($target)) {
2051 $flag = 1; # we are directly connected
2053 $ref = Route::get($target);
2054 $dxchan = $ref->dxchan;
2057 if ($ref && $flag && $dxchan) {
2058 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
2061 } elsif ($sort eq 'R') {
2062 if (my $dxchan = DXChannel::get($from)) {
2063 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
2065 my $ref = Route::get($from);
2067 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
2069 $_->send($line) for @dxchan;
2071 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2074 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2080 } elsif ($sort eq 'K') {
2081 $pc92Kin += length $line;
2083 # remember the last channel we arrived on
2084 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2086 my @ent = _decode_pc92_call($pc->[4]);
2091 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
2092 return unless $parent; # dupe
2094 push @radd, $add if $add;
2096 my $call = $parent->call;
2097 my $version = $ent[4] || 0;
2098 my $build = $ent[5] || 0;
2100 my $oldbuild = $parent->build || 0;
2101 my $oldversion = $parent->version || 0;
2102 my $user = check_add_user($parent->call, 'S');
2103 my $oldsort = $user->sort // '';
2105 dbg("PCPROT: PC92 K v: $version ov: $oldversion b: $build ob: $oldbuild pk: " . ($parent->K || '0') . " uk: " . ($user->K || 0)) if isdbg('pc92k');
2107 if (is_numeric($version) || is_numeric($build)) {
2109 if (($oldversion ne $version || $build ne $oldbuild)) {
2110 dbg("PCPROT: PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild)");
2111 $user->version($parent->version($version));
2112 $user->build($parent->build($build));
2115 if ($oldsort ne 'S') {
2116 dbg("PCPROT: PC92 K node $call updated sort: $sort (was $oldsort)");
2121 dbg("PCPROT: PC92 K node $call updated - marked as PC92 K user");
2125 $user->put if $changed;
2126 $parent->K(1); # mark this as come in on a K
2128 dbg("DXProt PC92 K version call $call: invalid version: '$version' or build: '$version', ignored");
2130 dbg("ROUTE: reset obscount on $call now " . $parent->obscount) if isdbg('obscount');
2132 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2134 $pc92Ain += length $line if $sort eq 'A';
2135 $pc92Cin += length $line if $sort eq 'C';
2136 $pc92Din += length $line if $sort eq 'D';
2138 # remember the last channel we arrived on
2139 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2141 # this is the main route section
2142 # here is where all the routes are created and destroyed
2144 # cope with missing duplicate node calls in the first slot
2145 my $me = $pc->[4] || '';
2146 $me ||= _encode_pc92_call($parent) unless $me ;
2148 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2152 # look at the first one which will always be a node of some sort
2153 # except in the case of 'A' or 'D' in which the $pcall is used
2154 # otherwise use the node call and update any information
2155 # that needs to be done.
2158 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2159 return unless $parent; # dupe
2162 push @radd, $add if $add;
2165 # do a pass through removing any references to either mycall
2169 next unless $_ && @$_;
2170 if ($_->[0] eq $main::mycall) {
2171 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2174 if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
2175 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2184 push @radd, _add_thingy($parent, $_, $self, $hops);
2186 } elsif ($sort eq 'D') {
2188 push @rdel, _del_thingy($parent, $_, $self);
2190 } elsif ($sort eq 'C') {
2191 my (@nodes, @users);
2193 # we reset obscounts on config records as well as K records
2195 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2198 foreach my $r (@nent) {
2199 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2202 push @nodes, $r->[0];
2204 push @users, $r->[0];
2207 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2211 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2214 foreach my $r (@nent) {
2217 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2221 foreach my $r (@$dnodes) {
2222 push @rdel,_del_thingy($parent, [$r, 1], $self);
2224 foreach my $r (@$dusers) {
2225 push @rdel,_del_thingy($parent, [$r, 0], $self);
2228 # remember this last PC92C for rebroadcast on demand
2229 $parent->last_PC92C($line);
2231 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2235 foreach my $r (@rdel) {
2238 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2239 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2241 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2242 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2243 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2244 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2245 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2248 # broadcast it if we get here
2249 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2252 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2253 # might be on two or more nodes at the same time or that there may be more than
2254 # one equal distance neighbour to a node.
2256 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2257 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2258 # each and then combined to give a set of dxchans to send the PC9x record down
2260 sub find_pc9x_routes
2263 my $ref = Route::get($to);
2267 if ($ref->isa('Route::User')) {
2268 my $dxchan = DXChannel::get($to);
2269 push @parent, $to if $dxchan;
2270 push @parent, $ref->parents;
2274 foreach my $p (@parent) {
2276 my @routes = Route::findroutes($p);
2277 foreach my $r (@routes) {
2278 $lasthops = $r->[0] unless defined $lasthops;
2279 if ($r->[0] == $lasthops) {
2280 $cand{$r->[1]->call} = $r->[1];
2286 return values %cand;
2297 # $self->{do_pc9x} ||= 1;
2299 my $pcall = $pc->[1]; # this is now checked earlier
2301 # remember that we are converting PC10->PC93 and self will be $main::me if it
2303 unless ($self->{do_pc9x}) {
2304 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2309 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2311 my $to = uc $pc->[3];
2312 my $from = uc $pc->[4];
2313 my $via = uc $pc->[5];
2314 my $text = $pc->[6];
2315 my $onode = uc $pc->[7];
2316 $onode = $pcall if @$pc <= 8;
2318 # this is catch loops caused by bad software ...
2319 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2323 if (isdbg('progress')) {
2324 my $vs = $via ne '*' ? " via $via" : '';
2325 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2329 # if this is a 'bad spotter' user then ignore it
2331 $nossid =~ s/-\d+$//;
2332 if ($badspotter->in($nossid)) {
2333 dbg($line) if isdbg('nologchan');
2334 dbg("PCPROT: Bad Spotter, dropped");
2338 # ignore PC93 coming in from outside this node with a target of local
2339 if ($to eq 'LOCAL' && $self != $main::me) {
2340 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2344 # will we allow it at all?
2347 if (@bad = BadWords::check($text)) {
2348 my $bw = join ', ', @bad;
2349 dbg($line) if isdbg('nologchan');
2350 dbg("PCPROT: Badwords: '$bw', dropped");
2355 # if it is routeable then then treat it like a talk
2356 my $ref = Route::get($to);
2360 # convert to PC10 or local talks where appropriate
2361 # PC93 capable nodes of the same hop count all get a copy
2362 # if there is a PC10 node then it will get a copy and that
2363 # will be it. Hopefully such a node will not figure highly
2364 # in the route list, unless it is local, 'cos it don't issue PC92s!
2365 # note that both local and PC93s at the same time are possible if the
2366 # user on more than one node.
2367 my @routes = find_pc9x_routes($to);
2369 foreach $dxchan (@routes) {
2370 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2371 if ($dxchan->{do_pc9x}) {
2372 $dxchan->send($line);
2374 $dxchan->talk($from, $to, $via, $text, $onode);
2377 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2382 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2384 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2385 my $wx = $to eq 'WX' ? '1' : '0';
2386 my $local = $via eq 'LOCAL' ? '*' : $via;
2388 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2389 return if $via eq 'LOCAL';
2390 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2391 # chat messages really only locally connected users
2392 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2395 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2396 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2399 # if get here then rebroadcast the thing with its Hop count decremented (if
2400 # there is one). If it has a hop count and it decrements to zero then don't
2403 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2415 unless (eph_dup($line)) {
2417 my $pcall = $pc->[1];
2418 unless (is_callsign($pcall)) {
2419 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2423 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2424 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2426 unless ($self->{isolate}) {
2427 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me