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]));
157 my $recurse = shift || 0;
159 # route 'foreign' pc26s
161 if ($pc->[7] ne $main::mycall) {
162 $self->route($pc->[7], $line);
167 dbg("INPUT PC$pcno $line origin $origin recurse: $recurse") if isdbg("pc11") || isdbg("pc61");
169 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
171 # is the spotted callsign blank? This should really be trapped earlier but it
172 # could break other protocol sentences. Also check for lower case characters.
173 if ($pc->[2] =~ /^\s*$/) {
174 dbg($line) if isdbg('nologchan');
175 dbg("PCPROT: blank callsign, dropped");
178 if ($pc->[2] =~ /[a-z]/) {
179 dbg($line) if isdbg('nologchan');
180 dbg("PCPROT: lowercase characters, dropped");
185 # if this is a 'nodx' node then ignore it
186 if ($badnode->in($pc->[7])) {
187 dbg($line) if isdbg('nologchan');
188 dbg("PCPROT: Bad Node $pc->[7], dropped");
192 # convert the date to a unix date
193 my $d = cltounix($pc->[3], $pc->[4]);
194 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
195 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
196 dbg($line) if isdbg('nologchan');
197 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n");
202 if ($baddx->in($pc->[2])) {
203 dbg("PCPROT: Bad DX spot '$pc->[2]', ignored");
204 dbg($line) if isdbg('nologchan');
208 # is it claiming to be BUST(ed)
209 $pc->[5] =~ s/^\s+//; # take any leading blanks off
210 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
211 if ($pc->[2] =~ /BUST\w*$/) {
212 dbg($line) if isdbg('nologchan');
213 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
217 my $nossid = $pc->[6];
218 $nossid =~ s/-\d+$//;
220 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
224 # $f2 = date in unix format
227 # $f5 = spotted dxcc country
228 # $f6 = spotter dxcc country
231 # $f9 = spotted cq zone
233 # $f11 = spotter cq zone
234 # $f12 = spotted us state
235 # $f13 = spotter us state
239 # is this is a 'bad spotter' or an unknown user then ignore it.
240 if ($badspotter->in($nossid)) {
241 dbg($line) if isdbg('nologchan');
242 dbg("PCPROT: Bad Spotter $pc->[6], dropped");
246 # global spot filtering on INPUT
247 if ($self->{inspotsfilter}) {
248 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
250 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
255 # we check IP addresses for PC61
256 if (@$pc > 8 && is_ipaddr($pc->[8])) {
260 if (DXCIDR::find($ip)) {
261 dbg($line) if isdbg('nologchan');
262 dbg("PCPROT: $ip in badip list, dropped");
267 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
269 my $key = join '|', @spot[0..2,4,7]; # not including text
274 if ($key eq $pc11_saved->[0]) {
276 dbg("recurse: $recurse saved PC11 spot $key dumped, better pc61 received pc11: $pc11_rx -> pc61 $pc11_to_61 ") if isdbg("pc11");
286 if ($key eq $pc11_saved->[0]) {
287 dbg("recurse: $recurse saved PC11 spot $key, dupe pc11 received and dumped") if isdbg("pc11");
288 return; # because it's a dup
292 # can we promote this to a PC61?
293 my $r = Route::User::get($spot[4]); # find spotter
294 if ($r && $r->ip) { # do we have an ip addres
295 $pcno = 61; # now turn this into a PC61
298 dbg("recurse: $recurse PC11 spot $key promoted to pc61 ip $spot[14] pc11: $pc11_rx -> pc61 $pc11_to_61") if isdbg("pc11");
302 # if it is STILL (despite all efforts to change it) a PC11
304 if ($pc11_saved && $key ne $pc11_saved->[0]) {
305 dbg("recurse: $recurse NEW PC11 spot $key ne $pc11_saved->[0], recursing") if isdbg("pc11");
306 # shift @$pc11_saved; # saved key
307 my $self = $pc11_saved->[1];
308 my @saved = @$pc11_saved[2..5];
309 $self->handle_11(@saved, 1);
312 $pc11_saved = [$key, $self, $pcno, $line, $origin, $pc];
313 $pc11_saved_time = $main::systime;
314 dbg("recurse: $recurse saved new PC11 spot $key for a better offer") if isdbg("pc11");
319 dbg("recurse: $recurse PC61 spot $key passed onward") if isdbg("pc11");
327 # this goes after the input filtering, but before the add
328 # so that if it is input filtered, it isn't added to the dup
329 # list. This allows it to come in from a "legitimate" source
330 if (Spot::dup(@spot[0..4,7])) {
331 dbg("PCPROT: Duplicate Spot $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot');
336 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
337 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
338 # to be current once we have seen the first PC92C from that node.
340 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
343 my $nroute = Route::Node::get($pc->[7]);
344 my $uroute = Route::Node::get($pc->[6]);
345 my $local = DXChannel::get($pc->[7]);
347 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
349 my $ip = $pcno == 61 ? $pc->[8] : '';
350 # $s .= "User $pc->[6] not logged in, " unless $uroute;
351 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
352 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
354 my $action = $senderverify > 1 ? ", DUMPED" : '';
356 dbg("PCPROT: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
357 return unless $senderverify < 2;
362 # we until here to do any censorship to try and reduce the amount of noise that repeated copies
363 # from other connected nodes cause
366 if (@bad = BadWords::check($pc->[5])) {
367 my $bw = join ', ', @bad;
368 dbg($line) if isdbg('nologchan');
369 dbg("PCPROT: Badwords: '$bw', dropped");
379 $ip ||= $spot[14] if exists $spot[14];
380 if (isdbg('progress')) {
381 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
383 my $d = ztime($spot[2]);
384 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
385 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
386 $s .= " route: $origin";
391 # @spot at this point contains:-
392 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
393 # then spotted itu, spotted cq, spotters itu, spotters cq
394 # you should be able to route on any of these
397 # fix up qra locators of known users
398 my $user = DXUser::get_current($spot[4]);
400 my $qra = $user->qra;
401 unless ($qra && is_qra($qra)) {
402 my $lat = $user->lat;
403 my $long = $user->long;
404 if (defined $lat && defined $long) {
405 $user->qra(DXBearing::lltoqra($lat, $long));
410 # send a remote command to a distant cluster if it is visible and there is no
411 # qra locator and we havn't done it for a month.
413 unless ($user->qra) {
415 my $to = $user->homenode;
416 my $last = $user->lastoper || 0;
417 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
418 my $cmd = "forward/opernam $spot[4]";
419 # send the rcmd but we aren't interested in the replies...
420 my $dxchan = $node->dxchan;
421 if ($dxchan && $dxchan->is_clx) {
422 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
424 route(undef, $to, pc34($main::mycall, $to, $cmd));
426 if ($to ne $origin) {
428 $node = Route::Node::get($to);
430 $dxchan = $node->dxchan;
431 if ($dxchan && $dxchan->is_clx) {
432 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
434 route(undef, $to, pc34($main::mycall, $to, $cmd));
438 $user->lastoper($main::systime);
444 # cancel any recursion as we have now processed it
446 if ($pc11_saved && $key eq $pc11_saved->[0]) {
447 dbg("recurse: $recurse key: $key saved_key: $pc11_saved->[0] removed") if isdbg('pc11');
454 if (defined &Local::spot) {
457 $r = Local::spot($self, @spot);
462 # DON'T be silly and send on PC26s!
463 return if $pcno == 26;
465 # send out the filtered spots
466 send_dx_spot($self, $line, @spot) if @spot;
471 # used to kick outstanding PC11 if required
474 if ($pc11_saved && $main::systime > $pc11_saved_time + $pc11_dwell_time) {
475 dbg("saved PC11 spot $pc11_saved->[0] timed out waiting, recursing") if isdbg("pc11");
476 shift @$pc11_saved; # saved key
477 my $self = shift @$pc11_saved;
478 my @saved = @$pc11_saved;
480 $self->handle_11(@saved, 1);
493 # announce duplicate checking
494 $pc->[3] =~ s/^\s+//; # remove leading blanks
496 # if this is a 'nodx' node then ignore it
497 if ($badnode->in($pc->[5])) {
498 dbg($line) if isdbg('nologchan');
499 dbg("PCPROT: Bad Node, dropped");
503 # if this is a 'bad spotter' user then ignore it
504 my $nossid = $pc->[1];
505 $nossid =~ s/-\d+$//;
506 if ($badspotter->in($nossid)) {
507 dbg($line) if isdbg('nologchan');
508 dbg("PCPROT: Bad Spotter, dropped");
512 # ignore PC12s from origins that use PCxx protocol
513 my $oref = Route::get($origin);
514 if ($oref->do_pc9x) {
515 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
521 if (@bad = BadWords::check($pc->[3])) {
522 my $bw = join ', ', @bad;
523 dbg($line) if isdbg('nologchan');
524 dbg("PCPROT: Badwords: '$bw', dropped");
532 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
533 $self->send_chat(0, $line, @$pc[1..6]);
534 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
536 # ignore something that looks like a chat line coming in with sysop
537 # flag - this is a kludge...
538 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
539 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
543 # here's a bit of fun, convert incoming ann with a callsign in the first word
544 # or one saying 'to <call>' to a talk if we can route to the recipient
546 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
548 my $ref = Route::get($call);
550 $dxchan = $ref->dxchan;
551 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
558 $self->send_announce(0, $line, @$pc[1..6]);
560 $self->route($pc->[2], $line);
564 if (defined &Local::ann) {
567 $r = Local::ann($self, $line, @$pc[1..6]);
581 if (eph_dup($line, $eph_pc15_restime)) {
584 unless ($self->{isolate}) {
585 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
601 my $ncall = $pc->[1];
602 my $newline = "PC16^";
604 # dos I want users from this channel?
605 unless ($self->user->wantpc16) {
606 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
611 if ($ncall eq $main::mycall) {
612 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
617 $h = 1 if DXChannel::get($ncall);
618 if ($h && $self->{call} ne $ncall) {
619 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
623 if (eph_dup($line)) {
627 # isolate now means only accept stuff from this call only
628 if ($self->{isolate} && $ncall ne $self->{call}) {
629 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
633 my $parent = Route::Node::get($ncall);
636 $dxchan = $parent->dxchan;
637 if ($dxchan && $dxchan ne $self) {
638 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
642 # input filter if required
643 return unless $self->in_filter_route($parent);
645 $parent = Route::Node->new($ncall);
649 if ($parent->via_pc92) {
650 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
657 for ($i = 2; $i < $#$pc; $i++) {
658 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
659 next unless $call && $conf && defined $here && is_callsign($call);
660 next if $call eq $main::mycall;
662 eph_del_regex("^PC17\\^$call\\^$ncall");
664 $conf = $conf eq '*';
666 # reject this if we think it is a node already
667 my $r = Route::Node::get($call);
668 my $u = DXUser::get_current($call) unless $r;
669 if ($r || ($u && $u->is_node)) {
670 dbg("PCPROT: $call is a node") if isdbg('chanerr');
674 $r = Route::User::get($call);
675 my $flags = Route::here($here)|Route::conf($conf);
678 my $au = $r->addparent($parent);
679 if ($r->flags != $flags) {
683 push @rout, $r if $h && $au;
685 my @ans = $parent->add_user($call, $flags);
686 push @rout, @ans if $h && @ans;
689 # add this station to the user database, if required
690 my $user = DXUser::get_current($ncall);
691 $user = DXUser->new($call) unless $user;
692 $user->homenode($parent->call) if !$user->homenode;
693 $user->node($parent->call);
694 $user->lastin($main::systime) unless DXChannel::get($call);
697 # send info to all logged in thingies
698 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
699 $self->tell_buddies('loginb', $call, $ncall);
702 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
703 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
717 my $ncall = $pc->[2];
718 my $ucall = $pc->[1];
720 eph_del_regex("^PC16\\^$ncall.*$ucall");
722 # do I want users from this channel?
723 unless ($self->user->wantpc16) {
724 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
728 if ($ncall eq $main::mycall) {
729 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
733 # isolate now means only accept stuff from this call only
734 if ($self->{isolate} && $ncall ne $self->{call}) {
735 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
739 my $uref = Route::User::get($ucall);
741 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
744 my $parent = Route::Node::get($ncall);
746 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
750 $dxchan = DXChannel::get($ncall);
751 if ($dxchan && $dxchan ne $self) {
752 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
757 if ($parent->via_pc92) {
758 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
763 if (DXChannel::get($ucall)) {
764 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
768 # input filter if required and then remove user if present
769 # return unless $self->in_filter_route($parent);
770 $parent->del_user($uref);
772 # send info to all logged in thingies
773 my $user = DXUser::get_current($ncall);
774 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
775 $self->tell_buddies('logoutb', $ucall, $ncall);
777 if (eph_dup($line)) {
781 $self->route_pc17($origin, $line, $parent, $uref);
782 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
794 $self->state('init');
796 my $parent = Route::Node::get($self->{call});
798 # record the type and version offered
799 if (my ($version) = $pc->[1] =~ /(?:DXSpider|CC\s*Cluster)\s+Version: (\d+(?:\.\d+))/) {
801 $version += 53 if $version < 6;
802 $self->{version} = $version;
803 $self->user->version($version);
804 $parent->version($version);
805 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
807 $self->{build} = $build;
808 $self->user->build($build);
809 $parent->build($build);
810 dbg("$self->{call} = DXSpider version $version build $build");
811 unless ($self->is_spider) {
812 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
813 $self->user->sort('S');
817 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
819 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
820 $self->version(50.0);
821 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
822 $self->user->version($self->version);
825 if ($pc->[1] =~ /\bpc9x/) {
826 if ($self->{isolate}) {
827 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
828 } elsif (!$self->user->wantpc9x) {
829 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
831 $self->{do_pc9x} = 1;
832 dbg("$self->{call} Set do PC9x");
836 # first clear out any nodes on this dxchannel
837 my @rout = $parent->del_nodes;
838 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
839 $self->send_local_config();
847 my $homenode = shift;
849 # add this station to the user database, if required (don't remove SSID from nodes)
850 my $user = DXUser::get_current($call);
852 $user = DXUser->new($call);
853 $user->sort($type || 'U');
854 if ($user->is_node) {
855 $user->priv(1); # I have relented and defaulted nodes
856 $user->lockout(1) if $user->is_node;
858 $user->homenode($homenode) if $homenode;
859 $user->node($homenode);
862 $user->lastin($main::systime); # this make it last longer than just this invocation
863 $user->put; # just to make sure it gets written away!!!
864 dbg("DXProt: PC92 new user record for $call created");
867 # this is to fix a problem I introduced some build ago by using this function for users
868 # whereas it was only being used for nodes.
869 if ($user->is_user && $user->lockout && ($user->priv // 0) == 1) {
872 dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
878 # incoming cluster list
888 my $newline = "PC19^";
891 my (@rout, @pc92out);
893 # first get the INTERFACE node
894 my $parent = Route::Node::get($self->{call});
896 dbg("PCPROT: my parent $self->{call} has disappeared");
905 # We are making a major change from now on. We are only going to accept
906 # PC19s from directly connected nodes. This means that we are probably
907 # going to throw away most of the data that we are being sent.
909 # The justification for this is that most of it is wrong or out of date
912 # From now on we are only going to believe PC92 data and locally connected
915 for ($i = 1; $i < $#$pc-1; $i += 4) {
916 my $here = $pc->[$i];
917 my $call = uc $pc->[$i+1];
918 my $conf = $pc->[$i+2];
919 my $ver = $pc->[$i+3];
920 next unless defined $here && defined $conf && is_callsign($call);
922 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
924 # check for sane parameters
925 # $ver = 5000 if $ver eq '0000';
926 next unless $ver && $ver =~ /^\d+$/;
927 next if $ver < 5000; # only works with version 5 software
928 next if length $call < 3; # min 3 letter callsigns
929 next if $call eq $main::mycall || $call eq $main::myalias;
931 # check that this PC19 isn't trying to alter the wrong dxchan
933 my $dxchan = DXChannel::get($call);
935 if ($dxchan == $self) {
938 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
943 # isolate now means only accept stuff from this call only
944 if ($self->{isolate} && $call ne $self->{call}) {
945 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
949 my $user = check_add_user($call, 'A');
951 # if (eph_dup($genline)) {
952 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
958 if ($parent->via_pc92) {
959 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
964 my $r = Route::Node::get($call);
965 my $flags = Route::here($here)|Route::conf($conf);
967 # modify the routing table if it is in it, otherwise store it in the pc19list for now
970 if ($call ne $parent->call) {
971 if ($self->in_filter_route($r)) {
972 $ar = $parent->add($call, $ver, $flags);
973 # push @rout, $ar if $ar;
978 if ($r->version ne $ver || $r->flags != $flags) {
984 if ($call eq $self->{call} || $user->wantroutepc19) {
985 my $new = Route->new($call); # throw away
986 if ($self->in_filter_route($new)) {
987 my $ar = $parent->add($call, $ver, $flags);
988 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
989 push @rout, $ar if $ar;
990 push @pc92out, $r if $h;
997 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
998 my $mref = DXMsg::get_busy($call);
999 $mref->stop_msg($call) if $mref;
1001 $user->lastin($main::systime) unless DXChannel::get($call);
1005 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
1006 # but remember there will only be one (pair) these because any extras will be
1009 # $self->route_pc21($self->{call}, $line, @rout);
1010 $self->route_pc19($self->{call}, $line, @rout);
1012 if (@pc92out && !$pc92_slug_changes) {
1013 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
1017 # send local configuration
1026 if ($self->{do_pc9x} && $self->{state} ne 'init92') {
1027 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1028 $self->{do_pc9x} = 0;
1030 $self->send_local_config;
1031 $self->send(pc22());
1032 $self->state('normal');
1033 $self->{lastping} = 0;
1034 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1037 # delete a cluster from the list
1039 # This should never occur for directly connected nodes.
1049 my $call = uc $pc->[1];
1051 eph_del_regex("^PC1[679].*$call");
1053 # if I get a PC21 from the same callsign as self then ignore it
1054 if ($call eq $self->{call}) {
1055 dbg("PCPROT: self referencing PC21 from $self->{call}");
1059 # for the above reason and also because of the check for PC21s coming
1060 # in for self->call from outside being ignored further down
1061 # we don't need any isolation code here, because we will never
1062 # act on a PC21 with self->call in it.
1064 my $parent = Route::Node::get($self->{call});
1066 dbg("PCPROT: my parent $self->{call} has disappeared");
1073 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
1074 my $node = Route::Node::get($call);
1077 if ($node->via_pc92) {
1078 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1082 my $dxchan = DXChannel::get($call);
1083 if ($dxchan && $dxchan != $self) {
1084 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1089 return unless $self->in_filter_route($node);
1091 # routing objects, force a PC21 if it is local
1092 push @rout, $node->del($parent);
1093 push @rout, $call if $dxchan && @rout == 0;
1096 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1100 if (eph_dup($line)) {
1105 $self->route_pc21($origin, $line, @rout);
1106 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1119 if ($self->{do_pc9x}) {
1120 if ($self->{state} ne 'init92') {
1121 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1122 $self->{do_pc9x} = 0;
1125 $self->{lastping} = 0;
1126 $self->state('normal');
1127 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1139 # route foreign' pc27s
1141 if ($pc->[8] ne $main::mycall) {
1142 $self->route($pc->[8], $line);
1149 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1150 my $sfi = unpad($pc->[3]);
1151 my $k = unpad($pc->[4]);
1152 my $i = unpad($pc->[5]);
1153 my ($r) = $pc->[6] =~ /R=(\d+)/;
1155 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1156 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1160 # global wwv filtering on INPUT
1161 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1162 if ($self->{inwwvfilter}) {
1163 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1165 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1169 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1170 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1171 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1175 # note this only takes the first one it gets
1176 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1177 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1179 if (defined &Local::wwv) {
1182 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1187 # DON'T be silly and send on PC27s!
1188 return if $pcno == 27;
1190 # broadcast to the eager world
1191 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1203 my $call = uc $pc->[1];
1205 $nref = Route::Node::get($call);
1206 $uref = Route::User::get($call);
1207 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1209 if (eph_dup($line)) {
1213 $nref->here($pc->[2]) if $nref;
1214 $uref->here($pc->[2]) if $uref;
1215 my $ref = $nref || $uref;
1216 return unless $self->in_filter_route($ref);
1218 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1230 if ($pc->[1] ne $main::mycall) {
1231 $self->route($pc->[1], $line);
1234 if ($pc->[2] eq $main::mycall) {
1235 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1239 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1243 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1246 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1252 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1255 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1260 sub handle_26 {goto &handle_11}
1261 sub handle_27 {goto &handle_23}
1263 # mail/file handling
1272 if ($pc->[1] eq $main::mycall) {
1274 my $sub = "DXMsg::handle_$pcno";
1277 $self->route($pc->[1], $line) unless $self->is_clx;
1281 sub handle_29 {goto &handle_28}
1282 sub handle_30 {goto &handle_28}
1283 sub handle_31 {goto &handle_28}
1284 sub handle_32 {goto &handle_28}
1285 sub handle_33 {goto &handle_28}
1295 if (eph_dup($line, $eph_pc34_restime)) {
1298 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1302 # remote command replies
1311 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1312 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1315 sub handle_36 {goto &handle_34}
1326 if ($pc->[1] eq $main::mycall) {
1328 my $sub = "DXDb::handle_$pcno";
1331 $self->route($pc->[1], $line) unless $self->is_clx;
1335 # node connected list from neighbour
1345 # incoming disconnect
1354 if ($pc->[1] eq $self->{call}) {
1355 $self->disconnect(1);
1357 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1361 sub handle_40 {goto &handle_28}
1372 my $call = $pc->[1];
1373 my $sort = $pc->[2];
1376 my $l = "PC41^$call^$sort";
1377 if (eph_dup($l, $eph_info_restime)) {
1381 # input filter if required
1382 # my $ref = Route::get($call) || Route->new($call);
1383 # return unless $self->in_filter_route($ref);
1385 if ($val eq $sort || $val =~ /^\s*$/) {
1386 dbg('PCPROT: invalid value') if isdbg('chanerr');
1390 if ($call eq $main::mycall || $call eq $main::myalias) {
1391 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1394 my $chan = DXChannel::get($call);
1396 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1400 # add this station to the user database, if required
1401 my $user = DXUser::get_current($call);
1402 $user = DXUser->new($call) unless $user;
1405 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1406 dbg("PCPROT: invalid name") if isdbg('chanerr');
1410 } elsif ($sort == 2) {
1412 } elsif ($sort == 3) {
1413 if (is_latlong($val)) {
1414 my ($lat, $long) = DXBearing::stoll($val);
1415 $user->lat($lat) if $lat;
1416 $user->long($long) if $long;
1417 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1419 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1422 } elsif ($sort == 4) {
1423 $user->homenode($val);
1424 } elsif ($sort == 5) {
1425 if (is_qra(uc $val)) {
1426 my ($lat, $long) = DXBearing::qratoll(uc $val);
1427 $user->lat($lat) if $lat && !$user->lat;
1428 $user->long($long) if $long && !$user->long;
1429 $user->qra(uc $val);
1431 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1435 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1438 unless ($self->{isolate}) {
1439 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1442 # perhaps this IS what we want after all
1443 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1446 sub handle_42 {goto &handle_28}
1450 sub handle_44 {goto &handle_37}
1451 sub handle_45 {goto &handle_37}
1452 sub handle_46 {goto &handle_37}
1453 sub handle_47 {goto &handle_37}
1454 sub handle_48 {goto &handle_37}
1456 # message and database
1465 if (eph_dup($line)) {
1469 if ($pc->[1] eq $main::mycall) {
1470 DXMsg::handle_49($self, @$pc);
1472 $self->route($pc->[1], $line) unless $self->is_clx;
1476 # keep alive/user list
1485 return if (eph_dup($line));
1487 my $call = $pc->[1];
1489 my $node = Route::Node::get($call);
1491 return unless $node->call eq $self->{call};
1492 $node->usercount($pc->[2]) unless $node->users;
1494 $node->PC92C_dxchan($self->call, $pc->[-1]);
1496 # input filter if required
1497 # return unless $self->in_filter_route($node);
1499 unless ($self->{isolate}) {
1500 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1502 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1506 # incoming ping requests/answers
1516 my $from = $pc->[2];
1517 my $flag = $pc->[3];
1519 if ($to eq $main::myalias) {
1520 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1525 if ($to eq $main::mycall) {
1527 $self->send(pc51($from, $to, '0'));
1529 DXXml::Ping::handle_ping_reply($self, $from);
1532 if (eph_dup($line)) {
1535 # route down an appropriate thingy
1536 $self->route($to, $line);
1540 sub handle_61 { goto &handle_11; }
1542 # dunno but route it
1551 my $call = $pc->[1];
1552 if ($call ne $main::mycall) {
1553 $self->route($call, $line);
1566 my $call = $pc->[1];
1569 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1570 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1571 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1574 $pc = [ map { unpad($_) } @$pc ];
1576 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1580 my $wcy = WCY::update($d, @$pc[2..12]);
1581 dbg("WCY: <$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');
1583 if (defined &Local::wcy) {
1586 $rep = Local::wcy($self, @$pc[1..12]);
1591 # broadcast to the eager world
1592 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1595 # remote commands (incoming)
1604 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1607 # remote command replies
1616 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1619 # decode a pc92 call: flag call : version : build
1620 sub _decode_pc92_call
1623 my @part = split /:/, $icall;
1624 my ($flag, $call) = unpack "A A*", $part[0];
1625 unless (defined $flag && $flag ge '0' && $flag le '7') {
1626 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1629 unless ($call && is_callsign($call)) {
1630 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1633 my $is_node = $flag & 4;
1634 my $is_extnode = $flag & 2;
1635 my $here = $flag & 1;
1636 my $version = $part[1] || 0;
1637 my $build = $part[2] || 0;
1638 my $ip = $part[3] || '';
1640 # remember that, at this stage, IPV6 addresses have : replaced by ,
1641 if (length $version > 4 && $version =~ /[,\.][\da-f]{1,4}/i) {
1645 $version =~ s/\D//g;
1646 $version = 0 unless $version && $version =~ /^[0-9]+$/;
1649 $build = 0 unless $build && $build =~ /^[0-9]+$/;
1652 $ip =~ s/^::ffff://i;
1653 $ip = '' unless is_ipaddr($ip);
1655 dbg("'$icall' = '" . join("', '", $call, $is_node, $is_extnode, $here, $version, $build, $ip) . "'") if isdbg('pc92');
1656 return ($call, $is_node, $is_extnode, $here, $version+0, $build+0, $ip);
1659 # decode a pc92 call: flag call : version : build
1660 sub _encode_pc92_call
1664 # plain call or value
1665 return $ref unless ref $ref;
1667 my $ext = shift || 0;
1669 my $call = $ref->call;
1671 $flag |= $ref->here ? 1 : 0;
1672 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1674 my $dxchan = DXChannel::get($call);
1675 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1676 if (($ext & 1) && $ref->version) {
1677 my $version = $ref->version || 1.0;
1678 $version = $version * 100 + 5300 if $version < 50;
1679 $extra .= ":" . $version;
1682 if (($ext & 2) && $ref->ip) {
1685 $extra .= ':' . $ip;
1688 return "$flag$call$extra";
1701 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1704 # remove spurious IPV6 prefix on IPV4 addresses
1709 my $ncall = $parent->call;
1710 if ($ncall ne $call) {
1714 # normalise call, delete any unnormalised calls in the users file.
1715 # then ignore this thingy
1716 my $normcall = normalise_call($call);
1717 if ($normcall ne $call) {
1718 next if DXChannel::get($call);
1719 $user = DXUser::get($call);
1720 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1721 $user->del if $user;
1722 $call = $normcall; # this is safe because a route add will ignore duplicates
1726 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1727 $user = check_add_user($call, 'A');
1728 @rout = $parent->add($call, $version, Route::here($here), $ip);
1729 $r = Route::Node::get($call);
1730 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1731 if ($version && is_numeric($version) && !$r->K && !$user->K) {
1732 my $old = $user->sort;
1733 if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1735 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1736 } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455))) {
1737 unless ($version > 0 && $build == 0) {
1740 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1744 $r->version($user->version) if $user->version;
1745 $r->build($user->build) if $user->build;
1746 $r->K(1) if $user->K;
1748 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1749 $user = check_add_user($call, 'U', $parent->call);
1750 @rout = $parent->add_user($call, Route::here($here), $ip);
1751 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1752 $r = Route::User::get($call);
1756 Log('DXProt', "PC92A $call -> $ip on $ncall");
1758 if ($pc92_slug_changes && $parent == $main::routeroot) {
1759 $things_add{$call} = Route::get($call);
1760 delete $things_del{$call};
1762 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1764 dbgprintring(10) if isdbg('nologchan');
1765 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1777 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1782 $ref = Route::Node::get($call);
1783 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1784 @rout = $ref->del($parent) if $ref;
1786 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1787 $ref = Route::User::get($call);
1789 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1790 @rout = $parent->del_user($ref);
1793 if ($pc92_slug_changes && $parent == $main::routeroot) {
1794 $things_del{$call} = $ref unless exists $things_add{$call};
1795 delete $things_add{$call};
1801 # this will only happen if we are slugging changes and
1802 # there are some changes to be sent, it will create an add or a delete
1804 sub gen_pc92_changes
1806 my @add = values %things_add;
1807 my @del = values %things_del;
1808 return (\@add, \@del);
1811 sub clear_pc92_changes
1813 %things_add = %things_del = ();
1814 $last_pc92_slug = $main::systime;
1823 return $_last_pc9x_id;
1828 if (!$_last_time || $_last_time != $main::systime) {
1829 $_last_time = $main::systime;
1831 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1834 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1845 # check that the time is between 0 >= $t < 86400
1846 unless ($t >= 0 && $t < 86400) {
1847 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1851 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1852 my $now = $main::systime - $main::systime_daystart ;
1853 my $diff = abs($now - $t);
1854 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1855 my $c = ref $call ? $call->call : $call;
1856 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1860 my $parent = ref $call ? $call : Route::Node::get($call);
1862 # we only do this for external calls whose routing table
1863 # record come and go. The reference for mycall is permanent
1864 # and not that frequently used, it also never times out, so
1865 # the id on it is completely unreliable. Besides, only commands
1866 # originating on this box will go through this code...
1867 if ($parent->call ne $main::mycall) {
1868 my $lastid = $parent->lastid;
1869 if (defined $lastid) {
1871 # note that this is where we determine whether this pc9x has come in yesterday
1872 # but is still greater (modulo 86400) than the lastid or is simply an old
1873 # duplicate sentence. To determine this we need to do some module 86400
1874 # arithmetic. High numbers mean that this is an old duplicate sentence,
1875 # low numbers that it is a new sentence.
1877 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1878 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1879 # 86378 respectively in the calculation below).
1881 if ($t+86400-$lastid > $pc9x_past_age) {
1882 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1885 } elsif ($t == $lastid) {
1886 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1889 # check that if we have a low number in lastid that yesterday's numbers
1890 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1891 if ($lastid+86400-$t < $pc9x_past_age) {
1892 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1899 $parent = Route::Node->new($call);
1901 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1904 if (isdbg('pc92dedupe')) {
1905 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1906 my $val = $parent->{lastid};
1907 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1908 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1910 $parent->lastid($t);
1915 sub pc92_handle_first_slot
1922 my $oparent = $parent;
1926 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1927 if ($call && $is_node) {
1928 if ($call eq $main::mycall) {
1929 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
1932 if ($call eq $main::myalias) {
1933 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
1936 # this is only accepted from my "self".
1937 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1938 # locally connected. Local nodes always take precedence. But we remember the lastid
1939 # to try to reduce the number of dupe PC92s for this external node.
1940 if (DXChannel::get($call) && $call ne $self->{call}) {
1941 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1942 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1946 # reparent to external node (note that we must have received a 'C' or 'A' record
1947 # from the true parent node for this external before we get one for the this node
1948 unless ($parent = Route::Node::get($call)) {
1949 if ($is_extnode && $oparent) {
1950 @radd = _add_thingy($oparent, $slot, $self, $hops);
1953 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1957 $parent = check_pc9x_t($call, $t, 92) || return;
1958 $parent->via_pc92(1);
1959 $parent->PC92C_dxchan($self->{call}, $hops);
1962 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1965 $parent->here(Route::here($here));
1966 $parent->version($version || $pc19_version) if $version;
1967 $parent->build($build) if $build;
1968 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1969 return ($parent, @radd);
1972 # DXSpider routing entries
1983 my $pcall = $pc->[1];
1985 my $sort = $pc->[3];
1986 my $hops = $pc->[-1];
1988 # this catches loops of A/Ds
1989 # if (eph_dup($line, $pc9x_dupe_age)) {
1993 if ($pcall eq $main::mycall) {
1994 LogDbg('err', "PCPROT: looped back, ignored");
1998 if ($pcall eq $main::myalias) {
1999 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
2003 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
2004 if ($self->{isolate}) {
2005 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
2007 } elsif (!$self->user->wantpc9x) {
2008 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
2011 $self->state('init92');
2012 $self->{do_pc9x} = 1;
2013 dbg("DXPROT: Do pc9x set on $pcall");
2016 unless ($self->{do_pc9x}) {
2017 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2021 # don't create routing entries for D records that don't already exist
2022 # this is what causes all those PC92 loops!
2023 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
2024 my $oparent = $parent;
2026 $parent->do_pc9x(1);
2027 $parent->via_pc92(1);
2029 if ($sort eq 'F' || $sort eq 'R') {
2031 # this is the route finding section
2032 # here is where the consequences of the 'find' command
2035 my $from = $pc->[4];
2036 my $target = $pc->[5];
2042 if ($ref = DXChannel::get($target)) {
2043 $flag = 1; # we are directly connected
2045 $ref = Route::get($target);
2046 $dxchan = $ref->dxchan;
2049 if ($ref && $flag && $dxchan) {
2050 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
2053 } elsif ($sort eq 'R') {
2054 if (my $dxchan = DXChannel::get($from)) {
2055 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
2057 my $ref = Route::get($from);
2059 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
2061 $_->send($line) for @dxchan;
2063 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2066 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2072 } elsif ($sort eq 'K') {
2073 $pc92Kin += length $line;
2075 # remember the last channel we arrived on
2076 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2078 my @ent = _decode_pc92_call($pc->[4]);
2083 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
2084 return unless $parent; # dupe
2086 push @radd, $add if $add;
2088 my $call = $parent->call;
2089 my $version = $ent[4] || 0;
2090 my $build = $ent[5] || 0;
2092 my $oldbuild = $parent->build || 0;
2093 my $oldversion = $parent->version || 0;
2094 my $user = check_add_user($parent->call, 'S');
2095 my $oldsort = $user->sort // '';
2097 dbg("PCPROT: PC92 K v: $version ov: $oldversion b: $build ob: $oldbuild pk: " . ($parent->K || '0') . " uk: " . ($user->K || 0)) if isdbg('pc92k');
2099 if (is_numeric($version) || is_numeric($build)) {
2101 if (($oldversion ne $version || $build ne $oldbuild)) {
2102 dbg("PCPROT: PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild)");
2103 $user->version($parent->version($version));
2104 $user->build($parent->build($build));
2107 if ($oldsort ne 'S') {
2108 dbg("PCPROT: PC92 K node $call updated sort: $sort (was $oldsort)");
2113 dbg("PCPROT: PC92 K node $call updated - marked as PC92 K user");
2117 $user->put if $changed;
2118 $parent->K(1); # mark this as come in on a K
2120 dbg("DXProt PC92 K version call $call: invalid version: '$version' or build: '$version', ignored");
2122 dbg("ROUTE: reset obscount on $call now " . $parent->obscount) if isdbg('obscount');
2124 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2126 $pc92Ain += length $line if $sort eq 'A';
2127 $pc92Cin += length $line if $sort eq 'C';
2128 $pc92Din += length $line if $sort eq 'D';
2130 # remember the last channel we arrived on
2131 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2133 # this is the main route section
2134 # here is where all the routes are created and destroyed
2136 # cope with missing duplicate node calls in the first slot
2137 my $me = $pc->[4] || '';
2138 $me ||= _encode_pc92_call($parent) unless $me ;
2140 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2144 # look at the first one which will always be a node of some sort
2145 # except in the case of 'A' or 'D' in which the $pcall is used
2146 # otherwise use the node call and update any information
2147 # that needs to be done.
2150 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2151 return unless $parent; # dupe
2154 push @radd, $add if $add;
2157 # do a pass through removing any references to either mycall
2161 next unless $_ && @$_;
2162 if ($_->[0] eq $main::mycall) {
2163 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2166 if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
2167 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2176 push @radd, _add_thingy($parent, $_, $self, $hops);
2178 } elsif ($sort eq 'D') {
2180 push @rdel, _del_thingy($parent, $_, $self);
2182 } elsif ($sort eq 'C') {
2183 my (@nodes, @users);
2185 # we reset obscounts on config records as well as K records
2187 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2190 foreach my $r (@nent) {
2191 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2194 push @nodes, $r->[0];
2196 push @users, $r->[0];
2199 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2203 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2206 foreach my $r (@nent) {
2209 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2213 foreach my $r (@$dnodes) {
2214 push @rdel,_del_thingy($parent, [$r, 1], $self);
2216 foreach my $r (@$dusers) {
2217 push @rdel,_del_thingy($parent, [$r, 0], $self);
2220 # remember this last PC92C for rebroadcast on demand
2221 $parent->last_PC92C($line);
2223 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2227 foreach my $r (@rdel) {
2230 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2231 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2233 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2234 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2235 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2236 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2237 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2240 # broadcast it if we get here
2241 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2244 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2245 # might be on two or more nodes at the same time or that there may be more than
2246 # one equal distance neighbour to a node.
2248 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2249 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2250 # each and then combined to give a set of dxchans to send the PC9x record down
2252 sub find_pc9x_routes
2255 my $ref = Route::get($to);
2259 if ($ref->isa('Route::User')) {
2260 my $dxchan = DXChannel::get($to);
2261 push @parent, $to if $dxchan;
2262 push @parent, $ref->parents;
2266 foreach my $p (@parent) {
2268 my @routes = Route::findroutes($p);
2269 foreach my $r (@routes) {
2270 $lasthops = $r->[0] unless defined $lasthops;
2271 if ($r->[0] == $lasthops) {
2272 $cand{$r->[1]->call} = $r->[1];
2278 return values %cand;
2289 # $self->{do_pc9x} ||= 1;
2291 my $pcall = $pc->[1]; # this is now checked earlier
2293 # remember that we are converting PC10->PC93 and self will be $main::me if it
2295 unless ($self->{do_pc9x}) {
2296 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2301 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2303 my $to = uc $pc->[3];
2304 my $from = uc $pc->[4];
2305 my $via = uc $pc->[5];
2306 my $text = $pc->[6];
2307 my $onode = uc $pc->[7];
2308 $onode = $pcall if @$pc <= 8;
2310 # this is catch loops caused by bad software ...
2311 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2315 if (isdbg('progress')) {
2316 my $vs = $via ne '*' ? " via $via" : '';
2317 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2321 # if this is a 'bad spotter' user then ignore it
2323 $nossid =~ s/-\d+$//;
2324 if ($badspotter->in($nossid)) {
2325 dbg($line) if isdbg('nologchan');
2326 dbg("PCPROT: Bad Spotter, dropped");
2330 # ignore PC93 coming in from outside this node with a target of local
2331 if ($to eq 'LOCAL' && $self != $main::me) {
2332 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2336 # will we allow it at all?
2339 if (@bad = BadWords::check($text)) {
2340 my $bw = join ', ', @bad;
2341 dbg($line) if isdbg('nologchan');
2342 dbg("PCPROT: Badwords: '$bw', dropped");
2347 # if it is routeable then then treat it like a talk
2348 my $ref = Route::get($to);
2352 # convert to PC10 or local talks where appropriate
2353 # PC93 capable nodes of the same hop count all get a copy
2354 # if there is a PC10 node then it will get a copy and that
2355 # will be it. Hopefully such a node will not figure highly
2356 # in the route list, unless it is local, 'cos it don't issue PC92s!
2357 # note that both local and PC93s at the same time are possible if the
2358 # user on more than one node.
2359 my @routes = find_pc9x_routes($to);
2361 foreach $dxchan (@routes) {
2362 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2363 if ($dxchan->{do_pc9x}) {
2364 $dxchan->send($line);
2366 $dxchan->talk($from, $to, $via, $text, $onode);
2369 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2374 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2376 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2377 my $wx = $to eq 'WX' ? '1' : '0';
2378 my $local = $via eq 'LOCAL' ? '*' : $via;
2380 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2381 return if $via eq 'LOCAL';
2382 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2383 # chat messages really only locally connected users
2384 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2387 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2388 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2391 # if get here then rebroadcast the thing with its Hop count decremented (if
2392 # there is one). If it has a hop count and it decrements to zero then don't
2395 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2407 unless (eph_dup($line)) {
2409 my $pcall = $pc->[1];
2410 unless (is_callsign($pcall)) {
2411 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2415 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2416 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2418 unless ($self->{isolate}) {
2419 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me