3 # This module impliments the handlers for the protocal mode for a dx cluster
5 # Copyright (c) 1998-2007 Dirk Koopman G1TLH
39 no warnings qw(uninitialized);
43 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
44 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
45 $pingint $obscount %pc19list $chatdupeage $chatimportfn
46 $investigation_int $pc19_version $myprot_version
47 %nodehops $baddx $badspotter $badnode $censorpc
48 $allowzero $decode_dk0wcy $send_opernam @checklist
49 $eph_pc15_restime $pc9x_past_age $pc9x_dupe_age
50 $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
51 $pc92Ain $pc92Cin $pc92Din $pc92Kin $pc9x_time_tolerance
52 $pc92filterdef $senderverify $pc11_dwell_time $pc11_extract_route
55 $pc9x_dupe_age = 60; # catch loops of circular (usually) D records
56 $pc10_dupe_age = 45; # just something to catch duplicate PC10->PC93 conversions
57 $pc92_slug_changes = 60*1; # slug any changes going outward for this long
58 $last_pc92_slug = 0; # the last time we sent out any delayed add or del PC92s
59 $pc9x_time_tolerance = 15*60; # the time on a pc9x is allowed to be out by this amount
60 $pc9x_past_age = (122*60)+ # maximum age in the past of a px9x (a config record might be the only
61 $pc9x_time_tolerance; # thing a node might send - once an hour and we allow an extra hour for luck)
62 # this is actually the partition between "yesterday" and "today" but old.
63 $senderverify = 0; # 1 - check for forged PC11 or PC61.
64 # 2 - if forged, dump them.
65 $pc11_dwell_time = 2; # number of seconds to wait for a PC61 to come to substitute the PC11
66 $pc11_extract_route = 1; # generate missing user route entry and IP address from passing PC61s
69 $pc92filterdef = bless ([
70 # tag, sort, field, priv, special parser
79 # this is a place to park an incoming PC11 in the sure and certain hope that
80 # a PC61 will be along soon. This has the side benefit that it will delay a
81 # a PC11 for one second - assuming that it is not removed by a PC61 version
83 # incoming talk commands
92 # this is to catch loops caused by bad software ...
93 if (eph_dup($line, $pc10_dupe_age)) {
98 # is it for me or one of mine?
99 my ($from, $to, $via, $call, $dxchan);
101 if ($pc->[5] gt ' ') {
108 # if this is a 'nodx' node then ignore it
109 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
110 dbg($line) if isdbg('nologchan');
111 dbg("PCPROT: Bad Node, dropped");
117 $nossid =~ s/-\d+$//;
118 if ($badspotter->in($nossid)) {
119 dbg($line) if isdbg('nologchan');
120 dbg("PCPROT: Bad Spotter, dropped");
124 # if we are converting announces to talk is it a dup?
126 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
127 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
132 # will we allow it at all?
135 if (@bad = BadWords::check($pc->[3])) {
136 my $bw = join ', ', @bad;
137 dbg($line) if isdbg('nologchan');
138 dbg("PCPROT: Badwords: '$bw', dropped");
143 # convert this to a PC93, coming from mycall with origin set and process it as such
144 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
147 my %pc11_saved; # delayed PC11s
148 my $pc11_rx; # no of pc11 rxed
149 my $pc61_rx; # no of pc61 rxed
150 my $pc11_to_61; # no of 'better' pc61, that replaced stored waiting pc11
151 my $rpc11_to_61; # no of pc11s 'promoted' to pc61 by IP captured in routing table
161 my $recurse = shift || 0;
163 # route 'foreign' pc26s
165 if ($pc->[7] ne $main::mycall) {
166 $self->route($pc->[7], $line);
171 dbg("---") if isdbg("pc11") || isdbg("pc61");
172 dbg("INPUT $self->{call}: $line via: $origin recurse: $recurse") if isdbg("pc11") || isdbg("pc61");
174 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
176 # is the spotted callsign blank? This should really be trapped earlier but it
177 # could break other protocol sentences. Also check for lower case characters.
178 if ($pc->[2] =~ /^\s*$/) {
179 dbg($line) if isdbg('nologchan');
180 dbg("PCPROT: blank callsign, dropped");
183 if ($pc->[2] =~ /[a-z]/) {
184 dbg($line) if isdbg('nologchan');
185 dbg("PCPROT: lowercase characters, dropped");
190 # if this is a 'nodx' node then ignore it
191 if ($badnode->in($pc->[7])) {
192 dbg($line) if isdbg('nologchan');
193 dbg("PCPROT: Bad Node $pc->[7], dropped");
197 # convert the date to a unix date
198 my $d = cltounix($pc->[3], $pc->[4]);
199 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
200 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
201 dbg($line) if isdbg('nologchan');
202 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n");
207 if ($baddx->in($pc->[2])) {
208 dbg("PCPROT: Bad DX spot '$pc->[2]', ignored");
209 dbg($line) if isdbg('nologchan');
213 # is it claiming to be BUST(ed)
214 $pc->[5] =~ s/^\s+//; # take any leading blanks off
215 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
216 if ($pc->[2] =~ /BUST\w*$/) {
217 dbg($line) if isdbg('nologchan');
218 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
222 my $nossid = $pc->[6];
223 $nossid =~ s/-\d+$//;
225 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
229 # $f2 = date in unix format
232 # $f5 = spotted dxcc country
233 # $f6 = spotter dxcc country
236 # $f9 = spotted cq zone
238 # $f11 = spotter cq zone
239 # $f12 = spotted us state
240 # $f13 = spotter us state
244 # is this is a 'bad spotter' or an unknown user then ignore it.
245 if ($badspotter->in($nossid)) {
246 dbg($line) if isdbg('nologchan');
247 dbg("PCPROT: Bad Spotter $pc->[6], dropped");
251 # global spot filtering on INPUT
252 if ($self->{inspotsfilter}) {
253 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
255 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
260 # Populate the routing table
261 my $rn = Route::Node::get($pc->[7]);
263 $rn = Route::Node->new($pc->[7]);
264 dbg("ROUTE $self->{call}: ADD NEW node: $pc->[7]") if isdbg('pc11');
266 my $r = Route::User::get($pc->[6]);
268 $rn->add_user($pc->[6], 0, undef);
269 dbg("ROUTE $self->{call}: ADD NEW user: $pc->[6] -> $pc->[7]") if isdbg('pc11');
270 $r = Route::User::get($pc->[6]);
273 # Add/Change any IP address info
276 # as we have a route to a user, if it (or the node) does not exist then create them
277 # link the user to the node if not already done.
278 # then add or alter the IP address
282 if ($r->ip ne $new) {
286 dbg("ROUTE $self->{call}: ALTER IP node: $pc->[7] user: $pc->[6] old IP: '$old'-> new IP: '$new'") if isdbg('pc11');
289 dbg("ROUTE $self->{call}: NEW IP node: $pc->[7] user: $pc->[6] IP: '$new'") if isdbg('pc11');
293 dbg("ROUTE $self->{call}: ADD Failed for node $pc->[7] user $pc->[6]") if isdbg('pc11');
296 dbg("PCPROT: ROUTE $self->{call} NO IP ADDRESS in '$line'!");
300 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
301 my $key = join '|', @spot[0..2,4,7]; # not including text
307 if ($pc11_saved{$key}) {
308 # before we promote by route, check that it's not a dupe (but don't insert it).
309 if (Spot::dup_find(@spot[0..4,7])) {
310 dbg("PCPROT: Duplicate Spot $self->{call}: $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
311 delete $pc11_saved{$key};
316 my $percent = $pc11_rx ? $pc11_to_61 * 100 / $pc11_rx : 0;
317 dbg(sprintf("PROMOTED $self->{call}: BETTER $pc->[0] $key, using pc61, WAITING pc11 DUMPED: $pc61_rx pc11: $pc11_rx better pc61: $pc11_to_61 (%0.1f%%)", $percent)) if isdbg("pc11");
323 # if this fires then we have already had one or more PC11s but no PC61 for this spot
324 if ($pc11_saved{$key}) {
325 dbg("DUPE $self->{call} $pc->[0] key: $key is saved, ignored") if isdbg("pc11");
326 return; # because it's a dup
329 # before we promote by route, check that it's not been preceded by a previous PC61
330 if (Spot::dup_find(@spot[0..4,7])) {
331 my $s = exists $pc11_saved{$key} ? " stored $key removed" : "";
332 dbg("PCPROT: Duplicate Spot $self->{call}: PC11$s, recurse: $recurse, ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
333 delete $pc11_saved{$key};
338 # If we have an ip address we can promote by route
343 $pc->[8] = $spot[14] = $r->ip;
345 my $percent = $pc11_rx ? $rpc11_to_61 * 100 / $pc11_rx : 0;
346 dbg(sprintf("PROMOTED $self->{call}: ROUTE pc11 $key PROMOTED to pc61 with IP $spot[14] pc61: $pc61_rx pc11: $pc11_rx route->pc61 $rpc11_to_61 (%0.1f%%)", $percent)) if isdbg("pc11");
347 $line = join '^', @$pc, $hops, '~';
350 ++$pc11_rx; # 'cos we received it and it won't be a pc11 anymore
351 --$pc61_rx; # 'cos we'll increment it later as it's now a pc61, no double counting
353 # dbg("CHANGED saved key: $key PC11 line to $line") if isdbg('pc11');
354 delete $pc11_saved{$key};
357 # if it is STILL (despite all efforts to change it) a PC11
358 # save it and wait - it will be called from pc11_process
360 $pc11_saved{$key} = [$main::systime, $self, $pcno, $line, $origin, $pc];
361 dbg("WAITING $self->{call}: NEW $pc->[0] spot $key waiting for a better offer") if isdbg("pc11");
367 # this goes after the input filtering, but before the add
368 # so that if it is input filtered, it isn't added to the dup
369 # list. This allows it to come in from a "legitimate" source
371 ## NOTE: this is where we insert the spot into the DXDupe cache
373 if (Spot::dup(@spot[0..4,7])) {
374 dbg("PCPROT: Duplicate Spot $self->{call}: $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
378 dbg("PROCESSING $self->{call}: $pc->[0] key: $key") if isdbg('pc11');
386 # we check IP addresses for PC61 - this will also dedupe PC11 promotions
387 if (@$pc > 8 && is_ipaddr($pc->[8])) {
391 if (DXCIDR::find($ip)) {
392 dbg($line) if isdbg('nologchan');
393 dbg("PCPROT: PC61 $ip in badip list, dropped");
398 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
399 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
400 # to be current once we have seen the first PC92C from that node.
402 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
405 my $nroute = Route::Node::get($pc->[7]);
406 my $uroute = Route::Node::get($pc->[6]);
407 my $local = DXChannel::get($pc->[7]);
409 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
411 my $ip = $pcno == 61 ? $pc->[8] : '';
412 # $s .= "User $pc->[6] not logged in, " unless $uroute;
413 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
414 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
416 my $action = $senderverify > 1 ? ", DUMPED" : '';
418 dbg("PCPROT: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
419 return unless $senderverify < 2;
424 # we until here to do any censorship to try and reduce the amount of noise that repeated copies
425 # from other connected nodes cause
428 if (@bad = BadWords::check($pc->[5])) {
429 my $bw = join ', ', @bad;
430 dbg($line) if isdbg('nologchan');
431 dbg("PCPROT: Badwords: '$bw', dropped");
441 $ip ||= $spot[14] if exists $spot[14];
442 if (isdbg('progress')) {
443 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
445 my $d = ztime($spot[2]);
446 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
447 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
448 $s .= " route: $origin";
453 # @spot at this point contains:-
454 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
455 # then spotted itu, spotted cq, spotters itu, spotters cq
456 # you should be able to route on any of these
459 # fix up qra locators of known users
460 my $user = DXUser::get_current($spot[4]);
462 my $qra = $user->qra;
463 unless ($qra && is_qra($qra)) {
464 my $lat = $user->lat;
465 my $long = $user->long;
466 if (defined $lat && defined $long) {
467 $user->qra(DXBearing::lltoqra($lat, $long));
472 # send a remote command to a distant cluster if it is visible and there is no
473 # qra locator and we havn't done it for a month.
475 unless ($user->qra) {
477 my $to = $user->homenode;
478 my $last = $user->lastoper || 0;
479 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
480 my $cmd = "forward/opernam $spot[4]";
481 # send the rcmd but we aren't interested in the replies...
482 my $dxchan = $node->dxchan;
483 if ($dxchan && $dxchan->is_clx) {
484 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
486 route(undef, $to, pc34($main::mycall, $to, $cmd));
488 if ($to ne $origin) {
490 $node = Route::Node::get($to);
492 $dxchan = $node->dxchan;
493 if ($dxchan && $dxchan->is_clx) {
494 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
496 route(undef, $to, pc34($main::mycall, $to, $cmd));
500 $user->lastoper($main::systime);
507 if (defined &Local::spot) {
510 $r = Local::spot($self, @spot);
515 # DON'T be silly and send on PC26s!
516 return if $pcno == 26;
518 # send out the filtered spots
519 send_dx_spot($self, $line, @spot) if @spot;
521 # cancel any recursion as we have now processed it
522 my $count = $pc11_to_61+$rpc11_to_61;
523 my $percent = ($pc11_rx + $pc61_rx) ? ($pc11_rx * 100) / ($pc11_rx + $pc61_rx) : 0;
524 my $pc11_61 = $pc11_rx ? ($count * 100) / $pc11_rx : 0;
525 my $data = "$pc->[0] key: $key";
526 my $stats = sprintf "pc11: $pc11_rx pc61: $pc61_rx pc11%%: %0.1f%% pc11->pc61: $count(%0.1f%%)", $percent, $pc11_61;
528 if ($pc11_saved{$key}) {
529 dbg("END $self->{call}: RECURSED $data removed and finished $stats") if isdbg('pc11');
530 delete $pc11_saved{$key};
532 dbg("END $self->{call}: RECURSED NO KEY finished $stats") if isdbg('pc11');
536 dbg("END $self->{call}: NORMAL $data finished $stats") if isdbg('pc11');
540 # used to kick outstanding PC11 if required
543 foreach my $key (keys %pc11_saved) {
544 my $r = $pc11_saved{$key};
545 if ($main::systime > $r->[0] + $pc11_dwell_time) {
546 dbg("---") if isdbg("pc11");
547 dbg("RECURSE $r->[1]->{call}: PC11 spot $key timed out waiting, resend") if isdbg("pc11");
549 delete $pc11_saved{$key};
550 $self->handle_11(@$r[2..5], 1);
555 # return the pc11 / pc61 / promotions data
556 sub get_pc11_61_stats
558 my $promotions = $pc11_to_61+$rpc11_to_61;
559 my $percent = ($pc11_rx + $pc61_rx) ? ($pc11_rx * 100) / ($pc11_rx + $pc61_rx) : 0;
560 my $pc11_61p = $pc11_rx ? ($promotions * 100) / $pc11_rx : 0;
562 pc11_rx => $pc11_rx+0,
563 pc61_rx => $pc61_rx+0,
564 pc11_to_61 => $pc11_to_61+0,
565 rpc11_to_61 => $rpc11_to_61+0,
566 promotions => $promotions+0,
567 pc11_percent => $percent+0,
568 promotions_percent => $pc11_61p+0,
581 # announce duplicate checking
582 $pc->[3] =~ s/^\s+//; # remove leading blanks
584 # if this is a 'nodx' node then ignore it
585 if ($badnode->in($pc->[5])) {
586 dbg($line) if isdbg('nologchan');
587 dbg("PCPROT: Bad Node, dropped");
591 # if this is a 'bad spotter' user then ignore it
592 my $nossid = $pc->[1];
593 $nossid =~ s/-\d+$//;
594 if ($badspotter->in($nossid)) {
595 dbg($line) if isdbg('nologchan');
596 dbg("PCPROT: Bad Spotter, dropped");
600 # ignore PC12s from origins that use PCxx protocol
601 my $oref = Route::get($origin);
602 if ($oref->do_pc9x) {
603 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
609 if (@bad = BadWords::check($pc->[3])) {
610 my $bw = join ', ', @bad;
611 dbg($line) if isdbg('nologchan');
612 dbg("PCPROT: Badwords: '$bw', dropped");
620 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
621 $self->send_chat(0, $line, @$pc[1..6]);
622 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
624 # ignore something that looks like a chat line coming in with sysop
625 # flag - this is a kludge...
626 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
627 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
631 # here's a bit of fun, convert incoming ann with a callsign in the first word
632 # or one saying 'to <call>' to a talk if we can route to the recipient
634 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
636 my $ref = Route::get($call);
638 $dxchan = $ref->dxchan;
639 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
646 $self->send_announce(0, $line, @$pc[1..6]);
648 $self->route($pc->[2], $line);
652 if (defined &Local::ann) {
655 $r = Local::ann($self, $line, @$pc[1..6]);
669 if (eph_dup($line, $eph_pc15_restime)) {
672 unless ($self->{isolate}) {
673 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
689 my $ncall = $pc->[1];
690 my $newline = "PC16^";
692 # dos I want users from this channel?
693 unless ($self->user->wantpc16) {
694 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
699 if ($ncall eq $main::mycall) {
700 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
705 $h = 1 if DXChannel::get($ncall);
706 if ($h && $self->{call} ne $ncall) {
707 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
711 if (eph_dup($line)) {
715 # isolate now means only accept stuff from this call only
716 if ($self->{isolate} && $ncall ne $self->{call}) {
717 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
721 my $parent = Route::Node::get($ncall);
724 $dxchan = $parent->dxchan;
725 if ($dxchan && $dxchan ne $self) {
726 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
730 # input filter if required
731 return unless $self->in_filter_route($parent);
733 $parent = Route::Node->new($ncall);
737 if ($parent->via_pc92) {
738 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
745 for ($i = 2; $i < $#$pc; $i++) {
746 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
747 next unless $call && $conf && defined $here && is_callsign($call);
748 next if $call eq $main::mycall;
750 eph_del_regex("^PC17\\^$call\\^$ncall");
752 $conf = $conf eq '*';
754 # reject this if we think it is a node already
755 my $r = Route::Node::get($call);
756 my $u = DXUser::get_current($call) unless $r;
757 if ($r || ($u && $u->is_node)) {
758 dbg("PCPROT: $call is a node") if isdbg('chanerr');
762 $r = Route::User::get($call);
763 my $flags = Route::here($here)|Route::conf($conf);
766 my $au = $r->addparent($parent);
767 if ($r->flags != $flags) {
771 push @rout, $r if $h && $au;
773 my @ans = $parent->add_user($call, $flags);
774 push @rout, @ans if $h && @ans;
777 # add this station to the user database, if required
778 my $user = DXUser::get_current($ncall);
779 $user = DXUser->new($call) unless $user;
780 $user->homenode($parent->call) if !$user->homenode;
781 $user->node($parent->call);
782 $user->lastin($main::systime) unless DXChannel::get($call);
785 # send info to all logged in thingies
786 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
787 $self->tell_buddies('loginb', $call, $ncall);
790 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
791 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
805 my $ncall = $pc->[2];
806 my $ucall = $pc->[1];
808 eph_del_regex("^PC16\\^$ncall.*$ucall");
810 # do I want users from this channel?
811 unless ($self->user->wantpc16) {
812 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
816 if ($ncall eq $main::mycall) {
817 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
821 # isolate now means only accept stuff from this call only
822 if ($self->{isolate} && $ncall ne $self->{call}) {
823 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
827 my $uref = Route::User::get($ucall);
829 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
832 my $parent = Route::Node::get($ncall);
834 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
838 $dxchan = DXChannel::get($ncall);
839 if ($dxchan && $dxchan ne $self) {
840 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
845 if ($parent->via_pc92) {
846 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
851 if (DXChannel::get($ucall)) {
852 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
856 # input filter if required and then remove user if present
857 # return unless $self->in_filter_route($parent);
858 $parent->del_user($uref);
860 # send info to all logged in thingies
861 my $user = DXUser::get_current($ncall);
862 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
863 $self->tell_buddies('logoutb', $ucall, $ncall);
865 if (eph_dup($line)) {
869 $self->route_pc17($origin, $line, $parent, $uref);
870 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
882 $self->state('init');
884 my $parent = Route::Node::get($self->{call});
886 # record the type and version offered
887 if (my ($software, $version) = $pc->[1] =~ /(DXSpider|CC\s*Cluster)\s+Version: (\d+(?:\.\d+)?)/i) {
889 $version += 53 if $version < 6;
890 $self->{version} = $version;
891 $self->user->version($version);
892 $parent->version($version);
893 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
895 $build = 0 unless $build > 1;
896 $self->{build} = $build;
897 $self->user->build($build);
898 $parent->build($build);
899 dbg("$self->{call} = $software version $version build $build");
900 unless ($self->is_spider) {
901 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
902 $self->user->sort('S');
906 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
907 } elsif (my ($software, $version, $build) = $pc->[1] =~ /(AR-Cluster)\s+Version:\s+(\d+\.\d+).?(\d+\.\d+)?/) {
908 dbg("$self->{call} = $software version $version build $build");
909 $self->{version} = $version;
910 $self->user->version($version);
911 $parent->version($version);
912 $self->{build} = $build;
913 $self->user->build($build);
914 $parent->build($build);
915 unless ($self->is_arcluster) {
916 dbg("Change U " . $self->user->sort . " C $self->{sort} -> R");
917 $self->user->sort('R');
922 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
923 $self->version(50.0);
924 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
925 $self->user->version($self->version);
928 if ($pc->[1] =~ /CC\s*Cluster/i || $pc->[1] =~ /\bpc9x/i) {
929 if ($self->{isolate}) {
930 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
931 } elsif (!$self->user->wantpc9x) {
932 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
934 $self->{do_pc9x} = 1;
935 dbg("$self->{call} Set do PC9x");
939 # first clear out any nodes on this dxchannel
940 my @rout = $parent->del_nodes;
941 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
942 $self->send_local_config();
950 my $homenode = shift;
952 # add this station to the user database, if required (don't remove SSID from nodes)
953 my $user = DXUser::get_current($call);
955 $user = DXUser->new($call);
956 $user->sort($type || 'U');
957 if ($user->is_node) {
958 $user->priv(1); # I have relented and defaulted nodes
959 $user->lockout(1) if $user->is_node;
961 $user->homenode($homenode) if $homenode;
962 $user->node($homenode);
965 $user->lastin($main::systime); # this make it last longer than just this invocation
966 $user->put; # just to make sure it gets written away!!!
967 dbg("DXProt: PC92 new user record for $call created");
970 # this is to fix a problem I introduced some build ago by using this function for users
971 # whereas it was only being used for nodes.
972 if ($user->is_user && $user->lockout && ($user->priv // 0) == 1) {
975 dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
981 # incoming cluster list
991 my $newline = "PC19^";
994 my (@rout, @pc92out);
996 # first get the INTERFACE node
997 my $parent = Route::Node::get($self->{call});
999 dbg("PCPROT: my parent $self->{call} has disappeared");
1008 # We are making a major change from now on. We are only going to accept
1009 # PC19s from directly connected nodes. This means that we are probably
1010 # going to throw away most of the data that we are being sent.
1012 # The justification for this is that most of it is wrong or out of date
1015 # From now on we are only going to believe PC92 data and locally connected
1018 for ($i = 1; $i < $#$pc-1; $i += 4) {
1019 my $here = $pc->[$i];
1020 my $call = uc $pc->[$i+1];
1021 my $conf = $pc->[$i+2];
1022 my $ver = $pc->[$i+3];
1023 next unless defined $here && defined $conf && is_callsign($call);
1025 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
1027 # check for sane parameters
1028 # $ver = 5000 if $ver eq '0000';
1029 next unless $ver && $ver =~ /^\d+$/;
1030 next if $ver < 5000; # only works with version 5 software
1031 next if length $call < 3; # min 3 letter callsigns
1032 next if $call eq $main::mycall || $call eq $main::myalias;
1034 # check that this PC19 isn't trying to alter the wrong dxchan
1036 my $dxchan = DXChannel::get($call);
1038 if ($dxchan == $self) {
1041 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
1046 # isolate now means only accept stuff from this call only
1047 if ($self->{isolate} && $call ne $self->{call}) {
1048 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
1052 my $user = check_add_user($call, 'A');
1054 # if (eph_dup($genline)) {
1055 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
1061 if ($parent->via_pc92) {
1062 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
1067 my $r = Route::Node::get($call);
1068 my $flags = Route::here($here)|Route::conf($conf);
1070 # modify the routing table if it is in it, otherwise store it in the pc19list for now
1073 if ($call ne $parent->call) {
1074 if ($self->in_filter_route($r)) {
1075 $ar = $parent->add($call, $ver, $flags);
1076 # push @rout, $ar if $ar;
1081 if ($r->version ne $ver || $r->flags != $flags) {
1087 if ($call eq $self->{call} || $user->wantroutepc19) {
1088 my $new = Route->new($call); # throw away
1089 if ($self->in_filter_route($new)) {
1090 my $ar = $parent->add($call, $ver, $flags);
1091 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
1092 push @rout, $ar if $ar;
1093 push @pc92out, $r if $h;
1100 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
1101 my $mref = DXMsg::get_busy($call);
1102 $mref->stop_msg($call) if $mref;
1104 $user->lastin($main::systime) unless DXChannel::get($call);
1108 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
1109 # but remember there will only be one (pair) these because any extras will be
1112 # $self->route_pc21($self->{call}, $line, @rout);
1113 $self->route_pc19($self->{call}, $line, @rout);
1115 if (@pc92out && !$pc92_slug_changes) {
1116 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
1120 # send local configuration
1129 if ($self->{do_pc9x} && $self->{state} ne 'init92' && $self->{state} ne 'normal') {
1130 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1131 $self->{do_pc9x} = 0;
1133 $self->send_local_config;
1134 $self->send(pc22());
1135 $self->state('normal');
1136 $self->{lastping} = 0;
1137 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1140 # delete a cluster from the list
1142 # This should never occur for directly connected nodes.
1152 my $call = uc $pc->[1];
1154 eph_del_regex("^PC1[679].*$call");
1156 # if I get a PC21 from the same callsign as self then ignore it
1157 if ($call eq $self->{call}) {
1158 dbg("PCPROT: self referencing PC21 from $self->{call}");
1162 # for the above reason and also because of the check for PC21s coming
1163 # in for self->call from outside being ignored further down
1164 # we don't need any isolation code here, because we will never
1165 # act on a PC21 with self->call in it.
1167 my $parent = Route::Node::get($self->{call});
1169 dbg("PCPROT: my parent $self->{call} has disappeared");
1176 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
1177 my $node = Route::Node::get($call);
1180 if ($node->via_pc92) {
1181 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1185 my $dxchan = DXChannel::get($call);
1186 if ($dxchan && $dxchan != $self) {
1187 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1192 return unless $self->in_filter_route($node);
1194 # routing objects, force a PC21 if it is local
1195 push @rout, $node->del($parent);
1196 push @rout, $call if $dxchan && @rout == 0;
1199 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1203 if (eph_dup($line)) {
1208 $self->route_pc21($origin, $line, @rout);
1209 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1222 if ($self->{do_pc9x}) {
1223 if ($self->{state} ne 'init92' && $self->{state} ne 'normal') {
1224 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1225 $self->{do_pc9x} = 0;
1228 $self->{lastping} = 0;
1229 $self->state('normal');
1230 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1242 # route foreign' pc27s
1244 if ($pc->[8] ne $main::mycall) {
1245 $self->route($pc->[8], $line);
1252 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1253 my $sfi = unpad($pc->[3]);
1254 my $k = unpad($pc->[4]);
1255 my $i = unpad($pc->[5]);
1256 my ($r) = $pc->[6] =~ /R=(\d+)/;
1258 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1259 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1263 # global wwv filtering on INPUT
1264 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1265 if ($self->{inwwvfilter}) {
1266 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1268 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1272 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1273 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1274 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1278 # note this only takes the first one it gets
1279 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1280 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1282 if (defined &Local::wwv) {
1285 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1290 # DON'T be silly and send on PC27s!
1291 return if $pcno == 27;
1293 # broadcast to the eager world
1294 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1306 my $call = uc $pc->[1];
1308 $nref = Route::Node::get($call);
1309 $uref = Route::User::get($call);
1310 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1312 if (eph_dup($line)) {
1316 $nref->here($pc->[2]) if $nref;
1317 $uref->here($pc->[2]) if $uref;
1318 my $ref = $nref || $uref;
1319 return unless $self->in_filter_route($ref);
1321 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1333 if ($pc->[1] ne $main::mycall) {
1334 $self->route($pc->[1], $line);
1337 if ($pc->[2] eq $main::mycall) {
1338 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1342 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1346 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1349 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1355 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1358 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1363 sub handle_26 {goto &handle_11}
1364 sub handle_27 {goto &handle_23}
1366 # mail/file handling
1375 if ($pc->[1] eq $main::mycall) {
1377 my $sub = "DXMsg::handle_$pcno";
1380 $self->route($pc->[1], $line) unless $self->is_clx;
1384 sub handle_29 {goto &handle_28}
1385 sub handle_30 {goto &handle_28}
1386 sub handle_31 {goto &handle_28}
1387 sub handle_32 {goto &handle_28}
1388 sub handle_33 {goto &handle_28}
1398 if (eph_dup($line, $eph_pc34_restime)) {
1401 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1405 # remote command replies
1414 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1415 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1418 sub handle_36 {goto &handle_34}
1429 if ($pc->[1] eq $main::mycall) {
1431 my $sub = "DXDb::handle_$pcno";
1434 $self->route($pc->[1], $line) unless $self->is_clx;
1438 # node connected list from neighbour
1448 # incoming disconnect
1457 if ($pc->[1] eq $self->{call}) {
1458 $self->disconnect(1);
1460 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1464 sub handle_40 {goto &handle_28}
1475 my $call = $pc->[1];
1476 my $sort = $pc->[2];
1479 my $l = "PC41^$call^$sort";
1480 if (eph_dup($l, $eph_info_restime)) {
1484 # input filter if required
1485 # my $ref = Route::get($call) || Route->new($call);
1486 # return unless $self->in_filter_route($ref);
1488 if ($val eq $sort || $val =~ /^\s*$/) {
1489 dbg('PCPROT: invalid value') if isdbg('chanerr');
1493 if ($call eq $main::mycall || $call eq $main::myalias) {
1494 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1497 my $chan = DXChannel::get($call);
1499 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1503 # add this station to the user database, if required
1504 my $user = DXUser::get_current($call);
1505 $user = DXUser->new($call) unless $user;
1508 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1509 dbg("PCPROT: invalid name") if isdbg('chanerr');
1513 } elsif ($sort == 2) {
1515 } elsif ($sort == 3) {
1516 if (is_latlong($val)) {
1517 my ($lat, $long) = DXBearing::stoll($val);
1518 $user->lat($lat) if $lat;
1519 $user->long($long) if $long;
1520 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1522 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1525 } elsif ($sort == 4) {
1526 $user->homenode($val);
1527 } elsif ($sort == 5) {
1528 if (is_qra(uc $val)) {
1529 my ($lat, $long) = DXBearing::qratoll(uc $val);
1530 $user->lat($lat) if $lat && !$user->lat;
1531 $user->long($long) if $long && !$user->long;
1532 $user->qra(uc $val);
1534 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1538 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1541 unless ($self->{isolate}) {
1542 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1545 # perhaps this IS what we want after all
1546 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1549 sub handle_42 {goto &handle_28}
1553 sub handle_44 {goto &handle_37}
1554 sub handle_45 {goto &handle_37}
1555 sub handle_46 {goto &handle_37}
1556 sub handle_47 {goto &handle_37}
1557 sub handle_48 {goto &handle_37}
1559 # message and database
1568 if (eph_dup($line)) {
1572 if ($pc->[1] eq $main::mycall) {
1573 DXMsg::handle_49($self, @$pc);
1575 $self->route($pc->[1], $line) unless $self->is_clx;
1579 # keep alive/user list
1588 return if (eph_dup($line));
1590 my $call = $pc->[1];
1592 my $node = Route::Node::get($call);
1594 return unless $node->call eq $self->{call};
1595 $node->usercount($pc->[2]) unless $node->users;
1597 $node->PC92C_dxchan($self->call, $pc->[-1]);
1599 # input filter if required
1600 # return unless $self->in_filter_route($node);
1602 unless ($self->{isolate}) {
1603 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1605 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1609 # incoming ping requests/answers
1619 my $from = $pc->[2];
1620 my $flag = $pc->[3];
1622 if ($to eq $main::myalias) {
1623 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1628 if ($to eq $main::mycall) {
1630 $self->send(pc51($from, $to, '0'));
1632 DXXml::Ping::handle_ping_reply($self, $from);
1635 if (eph_dup($line)) {
1638 # route down an appropriate thingy
1639 $self->route($to, $line);
1643 sub handle_61 { goto &handle_11; }
1645 # dunno but route it
1654 my $call = $pc->[1];
1655 if ($call ne $main::mycall) {
1656 $self->route($call, $line);
1669 my $call = $pc->[1];
1672 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1673 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1674 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1677 $pc = [ map { unpad($_) } @$pc ];
1679 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1683 my $wcy = WCY::update($d, @$pc[2..12]);
1684 dbg("WCY: <$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');
1686 if (defined &Local::wcy) {
1689 $rep = Local::wcy($self, @$pc[1..12]);
1694 # broadcast to the eager world
1695 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1698 # remote commands (incoming)
1707 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1710 # remote command replies
1719 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1722 # decode a pc92 call: flag call : version : build
1723 sub _decode_pc92_call
1726 my @part = split /:/, $icall;
1727 my ($flag, $call) = unpack "A A*", $part[0];
1728 unless (defined $flag && $flag ge '0' && $flag le '7') {
1729 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1732 unless ($call && is_callsign($call)) {
1733 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1736 my $is_node = $flag & 4;
1737 my $is_extnode = $flag & 2;
1738 my $here = $flag & 1;
1739 my $version = $part[1] || 0;
1740 my $build = $part[2] || 0;
1741 my $ip = $part[3] || '';
1743 # remember that, at this stage, IPV6 addresses have : replaced by ,
1744 if (length $version > 4 && $version =~ /[,\.][\da-f]{1,4}/i) {
1748 $version =~ s/\D//g;
1749 $version = 0 unless $version && $version =~ /^[0-9]+$/;
1752 $build = 0 unless $build && $build =~ /^[0-9]+$/;
1755 $ip =~ s/^::ffff://i;
1756 $ip = '' unless is_ipaddr($ip);
1758 dbg("'$icall' = '" . join("', '", $call, $is_node, $is_extnode, $here, $version, $build, $ip) . "'") if isdbg('pc92');
1759 return ($call, $is_node, $is_extnode, $here, $version+0, $build+0, $ip);
1762 # decode a pc92 call: flag call : version : build
1763 sub _encode_pc92_call
1767 # plain call or value
1768 return $ref unless ref $ref;
1770 my $ext = shift || 0;
1772 my $call = $ref->call;
1774 $flag |= $ref->here ? 1 : 0;
1775 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1777 my $dxchan = DXChannel::get($call);
1778 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1779 if (($ext & 1) && $ref->version) {
1780 my $version = $ref->version || 1.0;
1781 $version = $version * 100 + 5300 if $version < 50;
1782 $extra .= ":" . $version;
1785 if (($ext & 2) && $ref->ip) {
1788 $extra .= ':' . $ip;
1791 return "$flag$call$extra";
1804 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1807 # remove spurious IPV6 prefix on IPV4 addresses
1812 my $ncall = $parent->call;
1813 if ($ncall ne $call) {
1817 # normalise call, delete any unnormalised calls in the users file.
1818 # then ignore this thingy
1819 my $normcall = normalise_call($call);
1820 if ($normcall ne $call) {
1821 next if DXChannel::get($call);
1822 $user = DXUser::get($call);
1823 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1824 $user->del if $user;
1825 $call = $normcall; # this is safe because a route add will ignore duplicates
1829 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1830 $user = check_add_user($call, 'A');
1831 @rout = $parent->add($call, $version, Route::here($here), $ip);
1832 $r = Route::Node::get($call);
1833 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1834 if ($version && is_numeric($version) && !$r->K && !$user->K) {
1835 my $old = $user->sort;
1836 if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1838 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1839 } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455))) {
1840 unless ($version > 0 && $build == 0) {
1843 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1847 $r->version($user->version) if $user->version;
1848 $r->build($user->build) if $user->build;
1849 $r->K(1) if $user->K;
1851 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1852 $user = check_add_user($call, 'U', $parent->call);
1853 @rout = $parent->add_user($call, Route::here($here), $ip);
1854 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1855 $r = Route::User::get($call);
1859 Log('DXProt', "PC92A $call -> $ip on $ncall");
1861 if ($pc92_slug_changes && $parent == $main::routeroot) {
1862 $things_add{$call} = Route::get($call);
1863 delete $things_del{$call};
1865 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1867 dbgprintring(10) if isdbg('nologchan');
1868 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1880 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1885 $ref = Route::Node::get($call);
1886 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1887 @rout = $ref->del($parent) if $ref;
1889 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1890 $ref = Route::User::get($call);
1892 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1893 @rout = $parent->del_user($ref);
1896 if ($pc92_slug_changes && $parent == $main::routeroot) {
1897 $things_del{$call} = $ref unless exists $things_add{$call};
1898 delete $things_add{$call};
1904 # this will only happen if we are slugging changes and
1905 # there are some changes to be sent, it will create an add or a delete
1907 sub gen_pc92_changes
1909 my @add = values %things_add;
1910 my @del = values %things_del;
1911 return (\@add, \@del);
1914 sub clear_pc92_changes
1916 %things_add = %things_del = ();
1917 $last_pc92_slug = $main::systime;
1926 return $_last_pc9x_id;
1931 if (!$_last_time || $_last_time != $main::systime) {
1932 $_last_time = $main::systime;
1934 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1937 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1948 # check that the time is between 0 >= $t < 86400
1949 unless ($t >= 0 && $t < 86400) {
1950 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1954 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1955 my $now = $main::systime - $main::systime_daystart ;
1956 my $diff = abs($now - $t);
1957 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1958 my $c = ref $call ? $call->call : $call;
1959 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1963 my $parent = ref $call ? $call : Route::Node::get($call);
1965 # we only do this for external calls whose routing table
1966 # record come and go. The reference for mycall is permanent
1967 # and not that frequently used, it also never times out, so
1968 # the id on it is completely unreliable. Besides, only commands
1969 # originating on this box will go through this code...
1970 if ($parent->call ne $main::mycall) {
1971 my $lastid = $parent->lastid;
1972 if (defined $lastid) {
1974 # note that this is where we determine whether this pc9x has come in yesterday
1975 # but is still greater (modulo 86400) than the lastid or is simply an old
1976 # duplicate sentence. To determine this we need to do some module 86400
1977 # arithmetic. High numbers mean that this is an old duplicate sentence,
1978 # low numbers that it is a new sentence.
1980 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1981 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1982 # 86378 respectively in the calculation below).
1984 if ($t+86400-$lastid > $pc9x_past_age) {
1985 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1988 } elsif ($t == $lastid) {
1989 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1992 # check that if we have a low number in lastid that yesterday's numbers
1993 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1994 if ($lastid+86400-$t < $pc9x_past_age) {
1995 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
2002 $parent = Route::Node->new($call);
2004 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
2007 if (isdbg('pc92dedupe')) {
2008 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
2009 my $val = $parent->{lastid};
2010 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
2011 dbg("PCPROT: $call pc92 id lastid $s -> $t");
2013 $parent->lastid($t);
2018 sub pc92_handle_first_slot
2025 my $oparent = $parent;
2029 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
2030 if ($call && $is_node) {
2031 if ($call eq $main::mycall) {
2032 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
2035 if ($call eq $main::myalias) {
2036 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
2039 # this is only accepted from my "self".
2040 # this also kills configs from PC92 nodes with external PC19 nodes that are also
2041 # locally connected. Local nodes always take precedence. But we remember the lastid
2042 # to try to reduce the number of dupe PC92s for this external node.
2043 if (DXChannel::get($call) && $call ne $self->{call}) {
2044 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
2045 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
2049 # reparent to external node (note that we must have received a 'C' or 'A' record
2050 # from the true parent node for this external before we get one for the this node
2051 unless ($parent = Route::Node::get($call)) {
2052 if ($is_extnode && $oparent) {
2053 @radd = _add_thingy($oparent, $slot, $self, $hops);
2056 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
2060 $parent = check_pc9x_t($call, $t, 92) || return;
2061 $parent->via_pc92(1);
2062 $parent->PC92C_dxchan($self->{call}, $hops);
2065 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
2068 $parent->here(Route::here($here));
2069 $parent->version($version || $pc19_version) if $version;
2070 $parent->build($build) if $build;
2071 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2072 return ($parent, @radd);
2075 # DXSpider routing entries
2086 my $pcall = $pc->[1];
2088 my $sort = $pc->[3];
2089 my $hops = $pc->[-1];
2091 # this catches loops of A/Ds
2092 # if (eph_dup($line, $pc9x_dupe_age)) {
2096 if ($pcall eq $main::mycall) {
2097 LogDbg('err', "PCPROT: looped back, ignored");
2101 if ($pcall eq $main::myalias) {
2102 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
2106 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
2107 if ($self->{isolate}) {
2108 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
2110 } elsif (!$self->user->wantpc9x) {
2111 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
2114 $self->state('init92');
2115 $self->{do_pc9x} = 1;
2116 dbg("DXPROT: Do pc9x set on $pcall");
2119 unless ($self->{do_pc9x}) {
2120 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2124 # don't create routing entries for D records that don't already exist
2125 # this is what causes all those PC92 loops!
2126 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
2127 my $oparent = $parent;
2129 $parent->do_pc9x(1);
2130 $parent->via_pc92(1);
2132 if ($sort eq 'F' || $sort eq 'R') {
2134 # this is the route finding section
2135 # here is where the consequences of the 'find' command
2138 my $from = $pc->[4];
2139 my $target = $pc->[5];
2145 if ($ref = DXChannel::get($target)) {
2146 $flag = 1; # we are directly connected
2148 $ref = Route::get($target);
2149 $dxchan = $ref->dxchan;
2152 if ($ref && $flag && $dxchan) {
2153 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
2156 } elsif ($sort eq 'R') {
2157 if (my $dxchan = DXChannel::get($from)) {
2158 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
2160 my $ref = Route::get($from);
2162 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
2164 $_->send($line) for @dxchan;
2166 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2169 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2175 } elsif ($sort eq 'K') {
2176 $pc92Kin += length $line;
2178 # remember the last channel we arrived on
2179 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2181 my @ent = _decode_pc92_call($pc->[4]);
2186 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
2187 return unless $parent; # dupe
2189 push @radd, $add if $add;
2191 my $call = $parent->call;
2192 my $version = $ent[4] || 0;
2193 my $build = $ent[5] || 0;
2195 my $oldbuild = $parent->build || 0;
2196 my $oldversion = $parent->version || 0;
2197 my $user = check_add_user($parent->call, 'S');
2198 my $oldsort = $user->sort // '';
2200 dbg("PCPROT: PC92 K v: $version ov: $oldversion b: $build ob: $oldbuild pk: " . ($parent->K || '0') . " uk: " . ($user->K || 0)) if isdbg('pc92k');
2202 if (is_numeric($version) || is_numeric($build)) {
2204 if (($oldversion ne $version || $build ne $oldbuild)) {
2205 dbg("PCPROT: PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild)");
2206 $user->version($parent->version($version));
2207 $user->build($parent->build($build));
2210 if ($oldsort ne 'S') {
2211 dbg("PCPROT: PC92 K node $call updated sort: $sort (was $oldsort)");
2216 dbg("PCPROT: PC92 K node $call updated - marked as PC92 K user");
2220 $user->put if $changed;
2221 $parent->K(1); # mark this as come in on a K
2223 dbg("DXProt PC92 K version call $call: invalid version: '$version' or build: '$version', ignored");
2225 dbg("ROUTE: reset obscount on $call now " . $parent->obscount) if isdbg('obscount');
2227 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2229 $pc92Ain += length $line if $sort eq 'A';
2230 $pc92Cin += length $line if $sort eq 'C';
2231 $pc92Din += length $line if $sort eq 'D';
2233 # remember the last channel we arrived on
2234 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2236 # this is the main route section
2237 # here is where all the routes are created and destroyed
2239 # cope with missing duplicate node calls in the first slot
2240 my $me = $pc->[4] || '';
2241 $me ||= _encode_pc92_call($parent) unless $me ;
2243 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2247 # look at the first one which will always be a node of some sort
2248 # except in the case of 'A' or 'D' in which the $pcall is used
2249 # otherwise use the node call and update any information
2250 # that needs to be done.
2253 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2254 return unless $parent; # dupe
2257 push @radd, $add if $add;
2260 # do a pass through removing any references to either mycall
2264 next unless $_ && @$_;
2265 if ($_->[0] eq $main::mycall) {
2266 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2269 if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
2270 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2279 push @radd, _add_thingy($parent, $_, $self, $hops);
2281 } elsif ($sort eq 'D') {
2283 push @rdel, _del_thingy($parent, $_, $self);
2285 } elsif ($sort eq 'C') {
2286 my (@nodes, @users);
2288 # we reset obscounts on config records as well as K records
2290 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2293 foreach my $r (@nent) {
2294 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2297 push @nodes, $r->[0];
2299 push @users, $r->[0];
2302 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2306 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2309 foreach my $r (@nent) {
2312 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2316 foreach my $r (@$dnodes) {
2317 push @rdel,_del_thingy($parent, [$r, 1], $self);
2319 foreach my $r (@$dusers) {
2320 push @rdel,_del_thingy($parent, [$r, 0], $self);
2323 # remember this last PC92C for rebroadcast on demand
2324 $parent->last_PC92C($line);
2326 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2330 foreach my $r (@rdel) {
2333 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2334 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2336 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2337 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2338 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2339 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2340 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2343 # broadcast it if we get here
2344 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2347 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2348 # might be on two or more nodes at the same time or that there may be more than
2349 # one equal distance neighbour to a node.
2351 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2352 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2353 # each and then combined to give a set of dxchans to send the PC9x record down
2355 sub find_pc9x_routes
2358 my $ref = Route::get($to);
2362 if ($ref->isa('Route::User')) {
2363 my $dxchan = DXChannel::get($to);
2364 push @parent, $to if $dxchan;
2365 push @parent, $ref->parents;
2369 foreach my $p (@parent) {
2371 my @routes = Route::findroutes($p);
2372 foreach my $r (@routes) {
2373 $lasthops = $r->[0] unless defined $lasthops;
2374 if ($r->[0] == $lasthops) {
2375 $cand{$r->[1]->call} = $r->[1];
2381 return values %cand;
2392 # $self->{do_pc9x} ||= 1;
2394 my $pcall = $pc->[1]; # this is now checked earlier
2396 # remember that we are converting PC10->PC93 and self will be $main::me if it
2398 unless ($self->{do_pc9x}) {
2399 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2404 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2406 my $to = uc $pc->[3];
2407 my $from = uc $pc->[4];
2408 my $via = uc $pc->[5];
2409 my $text = $pc->[6];
2410 my $onode = uc $pc->[7];
2411 $onode = $pcall if @$pc <= 8;
2413 # this is catch loops caused by bad software ...
2414 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2418 if (isdbg('progress')) {
2419 my $vs = $via ne '*' ? " via $via" : '';
2420 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2424 # if this is a 'bad spotter' user then ignore it
2426 $nossid =~ s/-\d+$//;
2427 if ($badspotter->in($nossid)) {
2428 dbg($line) if isdbg('nologchan');
2429 dbg("PCPROT: Bad Spotter, dropped");
2433 # ignore PC93 coming in from outside this node with a target of local
2434 if ($to eq 'LOCAL' && $self != $main::me) {
2435 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2439 # will we allow it at all?
2442 if (@bad = BadWords::check($text)) {
2443 my $bw = join ', ', @bad;
2444 dbg($line) if isdbg('nologchan');
2445 dbg("PCPROT: Badwords: '$bw', dropped");
2450 # if it is routeable then then treat it like a talk
2451 my $ref = Route::get($to);
2455 # convert to PC10 or local talks where appropriate
2456 # PC93 capable nodes of the same hop count all get a copy
2457 # if there is a PC10 node then it will get a copy and that
2458 # will be it. Hopefully such a node will not figure highly
2459 # in the route list, unless it is local, 'cos it don't issue PC92s!
2460 # note that both local and PC93s at the same time are possible if the
2461 # user on more than one node.
2462 my @routes = find_pc9x_routes($to);
2464 foreach $dxchan (@routes) {
2465 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2466 if ($dxchan->{do_pc9x}) {
2467 $dxchan->send($line);
2469 $dxchan->talk($from, $to, $via, $text, $onode);
2472 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2477 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2479 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2480 my $wx = $to eq 'WX' ? '1' : '0';
2481 my $local = $via eq 'LOCAL' ? '*' : $via;
2483 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2484 return if $via eq 'LOCAL';
2485 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2486 # chat messages really only locally connected users
2487 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2490 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2491 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2494 # if get here then rebroadcast the thing with its Hop count decremented (if
2495 # there is one). If it has a hop count and it decrements to zero then don't
2498 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2510 unless (eph_dup($line)) {
2512 my $pcall = $pc->[1];
2513 unless (is_callsign($pcall)) {
2514 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2518 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2519 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2521 unless ($self->{isolate}) {
2522 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me