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
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 = 1; # number of seconds to wait for a PC61 to come to substitute the PC11
68 $pc92filterdef = bless ([
69 # tag, sort, field, priv, special parser
78 # this is a place to park an incoming PC11 in the sure and certain hope that
79 # a PC61 will be along soon. This has the side benefit that it will delay a
80 # a PC11 for one second - assuming that it is not removed by a PC61 version
82 # incoming talk commands
91 # this is to catch loops caused by bad software ...
92 if (eph_dup($line, $pc10_dupe_age)) {
97 # is it for me or one of mine?
98 my ($from, $to, $via, $call, $dxchan);
100 if ($pc->[5] gt ' ') {
107 # if this is a 'nodx' node then ignore it
108 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
109 dbg($line) if isdbg('nologchan');
110 dbg("PCPROT: Bad Node, dropped");
116 $nossid =~ s/-\d+$//;
117 if ($badspotter->in($nossid)) {
118 dbg($line) if isdbg('nologchan');
119 dbg("PCPROT: Bad Spotter, dropped");
123 # if we are converting announces to talk is it a dup?
125 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
126 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
131 # will we allow it at all?
134 if (@bad = BadWords::check($pc->[3])) {
135 my $bw = join ', ', @bad;
136 dbg($line) if isdbg('nologchan');
137 dbg("PCPROT: Badwords: '$bw', dropped");
142 # convert this to a PC93, coming from mycall with origin set and process it as such
143 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
162 my $recurse = shift || 0;
164 # route 'foreign' pc26s
166 if ($pc->[7] ne $main::mycall) {
167 $self->route($pc->[7], $line);
174 dbg("INPUT $self->{call} -> $line origin $origin recurse: $recurse") if isdbg("pc11") || isdbg("pc61");
176 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
178 # is the spotted callsign blank? This should really be trapped earlier but it
179 # could break other protocol sentences. Also check for lower case characters.
180 if ($pc->[2] =~ /^\s*$/) {
181 dbg($line) if isdbg('nologchan');
182 dbg("PCPROT: blank callsign, dropped");
185 if ($pc->[2] =~ /[a-z]/) {
186 dbg($line) if isdbg('nologchan');
187 dbg("PCPROT: lowercase characters, dropped");
192 # if this is a 'nodx' node then ignore it
193 if ($badnode->in($pc->[7])) {
194 dbg($line) if isdbg('nologchan');
195 dbg("PCPROT: Bad Node $pc->[7], dropped");
199 # convert the date to a unix date
200 my $d = cltounix($pc->[3], $pc->[4]);
201 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
202 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
203 dbg($line) if isdbg('nologchan');
204 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n");
209 if ($baddx->in($pc->[2])) {
210 dbg("PCPROT: Bad DX spot '$pc->[2]', ignored");
211 dbg($line) if isdbg('nologchan');
215 # is it claiming to be BUST(ed)
216 $pc->[5] =~ s/^\s+//; # take any leading blanks off
217 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
218 if ($pc->[2] =~ /BUST\w*$/) {
219 dbg($line) if isdbg('nologchan');
220 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
224 my $nossid = $pc->[6];
225 $nossid =~ s/-\d+$//;
227 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
231 # $f2 = date in unix format
234 # $f5 = spotted dxcc country
235 # $f6 = spotter dxcc country
238 # $f9 = spotted cq zone
240 # $f11 = spotter cq zone
241 # $f12 = spotted us state
242 # $f13 = spotter us state
246 # is this is a 'bad spotter' or an unknown user then ignore it.
247 if ($badspotter->in($nossid)) {
248 dbg($line) if isdbg('nologchan');
249 dbg("PCPROT: Bad Spotter $pc->[6], dropped");
253 # global spot filtering on INPUT
254 if ($self->{inspotsfilter}) {
255 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
257 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
263 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
265 my $key = join '|', @spot[0..2,4,7]; # not including text
269 if (Spot::dup_find(@spot[0..4,7])) {
270 dbg("DUPE $pc->[0] $self->{call} -> key: $key recurse: $recurse dumped") if isdbg('pc11');
277 if ($key eq $pc11_saved->[0]) {
279 my $percent = $pc11_rx ? $pc11_to_61 * 100 / $pc11_rx : 0;
280 dbg(sprintf("PROMOTED BETTER $pc->[0] $key received, saved PC11 DUMPED pc61: $pc61_rx recurse: $recurse pc11: $pc11_rx -> pc61: $pc11_to_61 (%0.1f%%)", $percent)) if isdbg("pc11");
287 if (Spot::dup_find(@spot[0..4,7])) {
288 dbg("DUPE $pc->[0] $self->{call} -> key: $key recurse: $recurse dumped") if isdbg('pc11');
295 if ($key eq $pc11_saved->[0] ) {
296 dbg("DUPE $pc->[0] $self->{call } key: $key same as saved recurse: $recurse, dumped") if isdbg("pc11");
297 return; # because it's a dup
301 # can we promote this to a PC61?
302 my $r = Route::User::get($spot[4]); # find spotter
303 if ($r && $r->ip) { # do we have an ip addres
306 $pc->[7] = $spot[14] = $r->ip;
308 my $percent = $pc11_rx ? $rpc11_to_61 * 100 / $pc11_rx : 0;
309 dbg(sprintf("PROMOTED ROUTE $self->{call} -> PC11 spot $key PROMOTED to PC61 IP $spot[14] recurse: $recurse pc61: $pc61_rx pc11: $pc11_rx -> pc61 $pc11_to_61 (%0.1f%%)", $percent)) if isdbg("pc11");
313 # if it is STILL (despite all efforts to change it) a PC11
315 if ($pc11_saved && $key ne $pc11_saved->[0]) {
316 if (Spot::dup_find(@spot[0..4,7])) {
317 dbg("DUPE saved PC11 $self->{call} -> key: $pc11_saved->[0] recurse: $recurse dumped") if isdbg('pc11');
319 dbg("RECURSE $self->{call} -> NEW $pc->[0] spot $key ne $pc11_saved->[0] recurse: $recurse, SAVE + recursing") if isdbg("pc11");
320 # shift @$pc11_saved; # saved key
321 my $self = $pc11_saved->[1];
322 my @saved = @$pc11_saved[2..5];
323 $self->handle_11(@saved, 1);
326 $pc11_saved = [$key, $self, $pcno, $line, $origin, $pc];
327 $pc11_saved_time = $main::systime;
328 dbg("SAVED $self->{call} -> NEW $pc->[0] spot $key for a better offer, recurse: $recurse") if isdbg("pc11");
333 my $count = $pc11_to_61+$rpc11_to_61;
334 my $percent = $pc11_rx ? $count*100 / $pc11_rx : 0;
335 my $pc11_61 = $pc61_rx ? $pc11_rx*100 / $pc61_rx : 0;
336 dbg(sprintf("PASSED $self->{call} -> $pc->[0] spot $key, recurse: $recurse pc11: $pc11_rx pc61: $pc61_rx PC11/PC61 ratio: %0.1f%% pc11->pc61 conversions: $count (%0.1f%%) ", $pc11_61, $percent)) if isdbg("pc11");
342 my $count = $pc11_to_61+$rpc11_to_61;
343 my $percent = $pc11_rx ? $count*100 / $pc11_rx : 0;
344 my $pc11_61 = $pc61_rx ? $pc11_rx*100 / $pc61_rx : 0;
345 dbg(sprintf("PASSED $self->{call} -> $pc->[0] spot $key, recurse: $recurse pc11: $pc11_rx pc61: $pc61_rx PC11/PC61 ratio: %0.1f%% pc11->pc61 conversions: $count (%0.1f%%) ", $pc11_61, $percent)) if isdbg("pc11");
349 # this goes after the input filtering, but before the add
350 # so that if it is input filtered, it isn't added to the dup
351 # list. This allows it to come in from a "legitimate" source
352 if (Spot::dup(@spot[0..4,7])) {
353 dbg("PCPROT: Duplicate Spot $self->{call} -> $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
357 dbg("PROCESSING $self->{call} -> $pc->[0] key: $key") if isdbg('pc11');
359 # we check IP addresses for PC61 - this will also dedupe PC11 copies
360 if (@$pc > 8 && is_ipaddr($pc->[8])) {
364 if (DXCIDR::find($ip)) {
365 dbg($line) if isdbg('nologchan');
366 dbg("PCPROT: $ip in badip list, dropped");
372 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
373 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
374 # to be current once we have seen the first PC92C from that node.
376 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
379 my $nroute = Route::Node::get($pc->[7]);
380 my $uroute = Route::Node::get($pc->[6]);
381 my $local = DXChannel::get($pc->[7]);
383 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
385 my $ip = $pcno == 61 ? $pc->[8] : '';
386 # $s .= "User $pc->[6] not logged in, " unless $uroute;
387 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
388 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
390 my $action = $senderverify > 1 ? ", DUMPED" : '';
392 dbg("PCPROT: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
393 return unless $senderverify < 2;
398 # we until here to do any censorship to try and reduce the amount of noise that repeated copies
399 # from other connected nodes cause
402 if (@bad = BadWords::check($pc->[5])) {
403 my $bw = join ', ', @bad;
404 dbg($line) if isdbg('nologchan');
405 dbg("PCPROT: Badwords: '$bw', dropped");
415 $ip ||= $spot[14] if exists $spot[14];
416 if (isdbg('progress')) {
417 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
419 my $d = ztime($spot[2]);
420 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
421 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
422 $s .= " route: $origin";
427 # @spot at this point contains:-
428 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
429 # then spotted itu, spotted cq, spotters itu, spotters cq
430 # you should be able to route on any of these
433 # fix up qra locators of known users
434 my $user = DXUser::get_current($spot[4]);
436 my $qra = $user->qra;
437 unless ($qra && is_qra($qra)) {
438 my $lat = $user->lat;
439 my $long = $user->long;
440 if (defined $lat && defined $long) {
441 $user->qra(DXBearing::lltoqra($lat, $long));
446 # send a remote command to a distant cluster if it is visible and there is no
447 # qra locator and we havn't done it for a month.
449 unless ($user->qra) {
451 my $to = $user->homenode;
452 my $last = $user->lastoper || 0;
453 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
454 my $cmd = "forward/opernam $spot[4]";
455 # send the rcmd but we aren't interested in the replies...
456 my $dxchan = $node->dxchan;
457 if ($dxchan && $dxchan->is_clx) {
458 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
460 route(undef, $to, pc34($main::mycall, $to, $cmd));
462 if ($to ne $origin) {
464 $node = Route::Node::get($to);
466 $dxchan = $node->dxchan;
467 if ($dxchan && $dxchan->is_clx) {
468 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
470 route(undef, $to, pc34($main::mycall, $to, $cmd));
474 $user->lastoper($main::systime);
481 if (defined &Local::spot) {
484 $r = Local::spot($self, @spot);
489 # DON'T be silly and send on PC26s!
490 return if $pcno == 26;
492 # send out the filtered spots
493 send_dx_spot($self, $line, @spot) if @spot;
495 # cancel any recursion as we have now processed it
497 if ($pc11_saved && $key eq $pc11_saved->[0]) {
498 dbg("END RECURSED $self->{call} $pc->[0] key: $key saved_key removed and finished") if isdbg('pc11');
501 dbg("END RECURSED $self->{call} $pc->[0] key: $key finished") if isdbg('pc11');
505 dbg("END NORMAL $self->{call} $pc->[0] key: $key finished") if isdbg('pc11');
509 # used to kick outstanding PC11 if required
512 if ($pc11_saved && $main::systime > $pc11_saved_time + $pc11_dwell_time) {
513 dbg("SAVED PC11 spot $pc11_saved->[0] timed out waiting, recursing") if isdbg("pc11");
514 shift @$pc11_saved; # saved key
515 my $self = shift @$pc11_saved;
516 my @saved = @$pc11_saved;
518 $self->handle_11(@saved, 1);
531 # announce duplicate checking
532 $pc->[3] =~ s/^\s+//; # remove leading blanks
534 # if this is a 'nodx' node then ignore it
535 if ($badnode->in($pc->[5])) {
536 dbg($line) if isdbg('nologchan');
537 dbg("PCPROT: Bad Node, dropped");
541 # if this is a 'bad spotter' user then ignore it
542 my $nossid = $pc->[1];
543 $nossid =~ s/-\d+$//;
544 if ($badspotter->in($nossid)) {
545 dbg($line) if isdbg('nologchan');
546 dbg("PCPROT: Bad Spotter, dropped");
550 # ignore PC12s from origins that use PCxx protocol
551 my $oref = Route::get($origin);
552 if ($oref->do_pc9x) {
553 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
559 if (@bad = BadWords::check($pc->[3])) {
560 my $bw = join ', ', @bad;
561 dbg($line) if isdbg('nologchan');
562 dbg("PCPROT: Badwords: '$bw', dropped");
570 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
571 $self->send_chat(0, $line, @$pc[1..6]);
572 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
574 # ignore something that looks like a chat line coming in with sysop
575 # flag - this is a kludge...
576 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
577 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
581 # here's a bit of fun, convert incoming ann with a callsign in the first word
582 # or one saying 'to <call>' to a talk if we can route to the recipient
584 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
586 my $ref = Route::get($call);
588 $dxchan = $ref->dxchan;
589 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
596 $self->send_announce(0, $line, @$pc[1..6]);
598 $self->route($pc->[2], $line);
602 if (defined &Local::ann) {
605 $r = Local::ann($self, $line, @$pc[1..6]);
619 if (eph_dup($line, $eph_pc15_restime)) {
622 unless ($self->{isolate}) {
623 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
639 my $ncall = $pc->[1];
640 my $newline = "PC16^";
642 # dos I want users from this channel?
643 unless ($self->user->wantpc16) {
644 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
649 if ($ncall eq $main::mycall) {
650 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
655 $h = 1 if DXChannel::get($ncall);
656 if ($h && $self->{call} ne $ncall) {
657 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
661 if (eph_dup($line)) {
665 # isolate now means only accept stuff from this call only
666 if ($self->{isolate} && $ncall ne $self->{call}) {
667 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
671 my $parent = Route::Node::get($ncall);
674 $dxchan = $parent->dxchan;
675 if ($dxchan && $dxchan ne $self) {
676 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
680 # input filter if required
681 return unless $self->in_filter_route($parent);
683 $parent = Route::Node->new($ncall);
687 if ($parent->via_pc92) {
688 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
695 for ($i = 2; $i < $#$pc; $i++) {
696 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
697 next unless $call && $conf && defined $here && is_callsign($call);
698 next if $call eq $main::mycall;
700 eph_del_regex("^PC17\\^$call\\^$ncall");
702 $conf = $conf eq '*';
704 # reject this if we think it is a node already
705 my $r = Route::Node::get($call);
706 my $u = DXUser::get_current($call) unless $r;
707 if ($r || ($u && $u->is_node)) {
708 dbg("PCPROT: $call is a node") if isdbg('chanerr');
712 $r = Route::User::get($call);
713 my $flags = Route::here($here)|Route::conf($conf);
716 my $au = $r->addparent($parent);
717 if ($r->flags != $flags) {
721 push @rout, $r if $h && $au;
723 my @ans = $parent->add_user($call, $flags);
724 push @rout, @ans if $h && @ans;
727 # add this station to the user database, if required
728 my $user = DXUser::get_current($ncall);
729 $user = DXUser->new($call) unless $user;
730 $user->homenode($parent->call) if !$user->homenode;
731 $user->node($parent->call);
732 $user->lastin($main::systime) unless DXChannel::get($call);
735 # send info to all logged in thingies
736 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
737 $self->tell_buddies('loginb', $call, $ncall);
740 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
741 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
755 my $ncall = $pc->[2];
756 my $ucall = $pc->[1];
758 eph_del_regex("^PC16\\^$ncall.*$ucall");
760 # do I want users from this channel?
761 unless ($self->user->wantpc16) {
762 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
766 if ($ncall eq $main::mycall) {
767 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
771 # isolate now means only accept stuff from this call only
772 if ($self->{isolate} && $ncall ne $self->{call}) {
773 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
777 my $uref = Route::User::get($ucall);
779 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
782 my $parent = Route::Node::get($ncall);
784 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
788 $dxchan = DXChannel::get($ncall);
789 if ($dxchan && $dxchan ne $self) {
790 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
795 if ($parent->via_pc92) {
796 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
801 if (DXChannel::get($ucall)) {
802 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
806 # input filter if required and then remove user if present
807 # return unless $self->in_filter_route($parent);
808 $parent->del_user($uref);
810 # send info to all logged in thingies
811 my $user = DXUser::get_current($ncall);
812 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
813 $self->tell_buddies('logoutb', $ucall, $ncall);
815 if (eph_dup($line)) {
819 $self->route_pc17($origin, $line, $parent, $uref);
820 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
832 $self->state('init');
834 my $parent = Route::Node::get($self->{call});
836 # record the type and version offered
837 if (my ($software, $version) = $pc->[1] =~ /(DXSpider|CC\s*Cluster)\s+Version: (\d+(?:\.\d+)?)/i) {
839 $version += 53 if $version < 6;
840 $self->{version} = $version;
841 $self->user->version($version);
842 $parent->version($version);
843 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
845 $self->{build} = $build;
846 $self->user->build($build);
847 $parent->build($build);
848 dbg("$self->{call} = $software version $version build $build");
849 unless ($self->is_spider) {
850 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
851 $self->user->sort('S');
855 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
857 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
858 $self->version(50.0);
859 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
860 $self->user->version($self->version);
863 if ($pc->[1] =~ /CC\*Cluster/i || $pc->[1] =~ /\bpc9x/i) {
864 if ($self->{isolate}) {
865 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
866 } elsif (!$self->user->wantpc9x) {
867 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
869 $self->{do_pc9x} = 1;
870 dbg("$self->{call} Set do PC9x");
874 # first clear out any nodes on this dxchannel
875 my @rout = $parent->del_nodes;
876 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
877 $self->send_local_config();
885 my $homenode = shift;
887 # add this station to the user database, if required (don't remove SSID from nodes)
888 my $user = DXUser::get_current($call);
890 $user = DXUser->new($call);
891 $user->sort($type || 'U');
892 if ($user->is_node) {
893 $user->priv(1); # I have relented and defaulted nodes
894 $user->lockout(1) if $user->is_node;
896 $user->homenode($homenode) if $homenode;
897 $user->node($homenode);
900 $user->lastin($main::systime); # this make it last longer than just this invocation
901 $user->put; # just to make sure it gets written away!!!
902 dbg("DXProt: PC92 new user record for $call created");
905 # this is to fix a problem I introduced some build ago by using this function for users
906 # whereas it was only being used for nodes.
907 if ($user->is_user && $user->lockout && ($user->priv // 0) == 1) {
910 dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
916 # incoming cluster list
926 my $newline = "PC19^";
929 my (@rout, @pc92out);
931 # first get the INTERFACE node
932 my $parent = Route::Node::get($self->{call});
934 dbg("PCPROT: my parent $self->{call} has disappeared");
943 # We are making a major change from now on. We are only going to accept
944 # PC19s from directly connected nodes. This means that we are probably
945 # going to throw away most of the data that we are being sent.
947 # The justification for this is that most of it is wrong or out of date
950 # From now on we are only going to believe PC92 data and locally connected
953 for ($i = 1; $i < $#$pc-1; $i += 4) {
954 my $here = $pc->[$i];
955 my $call = uc $pc->[$i+1];
956 my $conf = $pc->[$i+2];
957 my $ver = $pc->[$i+3];
958 next unless defined $here && defined $conf && is_callsign($call);
960 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
962 # check for sane parameters
963 # $ver = 5000 if $ver eq '0000';
964 next unless $ver && $ver =~ /^\d+$/;
965 next if $ver < 5000; # only works with version 5 software
966 next if length $call < 3; # min 3 letter callsigns
967 next if $call eq $main::mycall || $call eq $main::myalias;
969 # check that this PC19 isn't trying to alter the wrong dxchan
971 my $dxchan = DXChannel::get($call);
973 if ($dxchan == $self) {
976 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
981 # isolate now means only accept stuff from this call only
982 if ($self->{isolate} && $call ne $self->{call}) {
983 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
987 my $user = check_add_user($call, 'A');
989 # if (eph_dup($genline)) {
990 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
996 if ($parent->via_pc92) {
997 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
1002 my $r = Route::Node::get($call);
1003 my $flags = Route::here($here)|Route::conf($conf);
1005 # modify the routing table if it is in it, otherwise store it in the pc19list for now
1008 if ($call ne $parent->call) {
1009 if ($self->in_filter_route($r)) {
1010 $ar = $parent->add($call, $ver, $flags);
1011 # push @rout, $ar if $ar;
1016 if ($r->version ne $ver || $r->flags != $flags) {
1022 if ($call eq $self->{call} || $user->wantroutepc19) {
1023 my $new = Route->new($call); # throw away
1024 if ($self->in_filter_route($new)) {
1025 my $ar = $parent->add($call, $ver, $flags);
1026 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
1027 push @rout, $ar if $ar;
1028 push @pc92out, $r if $h;
1035 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
1036 my $mref = DXMsg::get_busy($call);
1037 $mref->stop_msg($call) if $mref;
1039 $user->lastin($main::systime) unless DXChannel::get($call);
1043 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
1044 # but remember there will only be one (pair) these because any extras will be
1047 # $self->route_pc21($self->{call}, $line, @rout);
1048 $self->route_pc19($self->{call}, $line, @rout);
1050 if (@pc92out && !$pc92_slug_changes) {
1051 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
1055 # send local configuration
1064 if ($self->{do_pc9x} && $self->{state} ne 'init92' && $self->{state} ne 'normal') {
1065 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1066 $self->{do_pc9x} = 0;
1068 $self->send_local_config;
1069 $self->send(pc22());
1070 $self->state('normal');
1071 $self->{lastping} = 0;
1072 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1075 # delete a cluster from the list
1077 # This should never occur for directly connected nodes.
1087 my $call = uc $pc->[1];
1089 eph_del_regex("^PC1[679].*$call");
1091 # if I get a PC21 from the same callsign as self then ignore it
1092 if ($call eq $self->{call}) {
1093 dbg("PCPROT: self referencing PC21 from $self->{call}");
1097 # for the above reason and also because of the check for PC21s coming
1098 # in for self->call from outside being ignored further down
1099 # we don't need any isolation code here, because we will never
1100 # act on a PC21 with self->call in it.
1102 my $parent = Route::Node::get($self->{call});
1104 dbg("PCPROT: my parent $self->{call} has disappeared");
1111 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
1112 my $node = Route::Node::get($call);
1115 if ($node->via_pc92) {
1116 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1120 my $dxchan = DXChannel::get($call);
1121 if ($dxchan && $dxchan != $self) {
1122 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1127 return unless $self->in_filter_route($node);
1129 # routing objects, force a PC21 if it is local
1130 push @rout, $node->del($parent);
1131 push @rout, $call if $dxchan && @rout == 0;
1134 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1138 if (eph_dup($line)) {
1143 $self->route_pc21($origin, $line, @rout);
1144 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1157 if ($self->{do_pc9x}) {
1158 if ($self->{state} ne 'init92' && $self->{state} ne 'normal') {
1159 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1160 $self->{do_pc9x} = 0;
1163 $self->{lastping} = 0;
1164 $self->state('normal');
1165 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1177 # route foreign' pc27s
1179 if ($pc->[8] ne $main::mycall) {
1180 $self->route($pc->[8], $line);
1187 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1188 my $sfi = unpad($pc->[3]);
1189 my $k = unpad($pc->[4]);
1190 my $i = unpad($pc->[5]);
1191 my ($r) = $pc->[6] =~ /R=(\d+)/;
1193 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1194 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1198 # global wwv filtering on INPUT
1199 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1200 if ($self->{inwwvfilter}) {
1201 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1203 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1207 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1208 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1209 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1213 # note this only takes the first one it gets
1214 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1215 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1217 if (defined &Local::wwv) {
1220 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1225 # DON'T be silly and send on PC27s!
1226 return if $pcno == 27;
1228 # broadcast to the eager world
1229 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1241 my $call = uc $pc->[1];
1243 $nref = Route::Node::get($call);
1244 $uref = Route::User::get($call);
1245 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1247 if (eph_dup($line)) {
1251 $nref->here($pc->[2]) if $nref;
1252 $uref->here($pc->[2]) if $uref;
1253 my $ref = $nref || $uref;
1254 return unless $self->in_filter_route($ref);
1256 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1268 if ($pc->[1] ne $main::mycall) {
1269 $self->route($pc->[1], $line);
1272 if ($pc->[2] eq $main::mycall) {
1273 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1277 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1281 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1284 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1290 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1293 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1298 sub handle_26 {goto &handle_11}
1299 sub handle_27 {goto &handle_23}
1301 # mail/file handling
1310 if ($pc->[1] eq $main::mycall) {
1312 my $sub = "DXMsg::handle_$pcno";
1315 $self->route($pc->[1], $line) unless $self->is_clx;
1319 sub handle_29 {goto &handle_28}
1320 sub handle_30 {goto &handle_28}
1321 sub handle_31 {goto &handle_28}
1322 sub handle_32 {goto &handle_28}
1323 sub handle_33 {goto &handle_28}
1333 if (eph_dup($line, $eph_pc34_restime)) {
1336 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1340 # remote command replies
1349 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1350 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1353 sub handle_36 {goto &handle_34}
1364 if ($pc->[1] eq $main::mycall) {
1366 my $sub = "DXDb::handle_$pcno";
1369 $self->route($pc->[1], $line) unless $self->is_clx;
1373 # node connected list from neighbour
1383 # incoming disconnect
1392 if ($pc->[1] eq $self->{call}) {
1393 $self->disconnect(1);
1395 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1399 sub handle_40 {goto &handle_28}
1410 my $call = $pc->[1];
1411 my $sort = $pc->[2];
1414 my $l = "PC41^$call^$sort";
1415 if (eph_dup($l, $eph_info_restime)) {
1419 # input filter if required
1420 # my $ref = Route::get($call) || Route->new($call);
1421 # return unless $self->in_filter_route($ref);
1423 if ($val eq $sort || $val =~ /^\s*$/) {
1424 dbg('PCPROT: invalid value') if isdbg('chanerr');
1428 if ($call eq $main::mycall || $call eq $main::myalias) {
1429 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1432 my $chan = DXChannel::get($call);
1434 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1438 # add this station to the user database, if required
1439 my $user = DXUser::get_current($call);
1440 $user = DXUser->new($call) unless $user;
1443 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1444 dbg("PCPROT: invalid name") if isdbg('chanerr');
1448 } elsif ($sort == 2) {
1450 } elsif ($sort == 3) {
1451 if (is_latlong($val)) {
1452 my ($lat, $long) = DXBearing::stoll($val);
1453 $user->lat($lat) if $lat;
1454 $user->long($long) if $long;
1455 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1457 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1460 } elsif ($sort == 4) {
1461 $user->homenode($val);
1462 } elsif ($sort == 5) {
1463 if (is_qra(uc $val)) {
1464 my ($lat, $long) = DXBearing::qratoll(uc $val);
1465 $user->lat($lat) if $lat && !$user->lat;
1466 $user->long($long) if $long && !$user->long;
1467 $user->qra(uc $val);
1469 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1473 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1476 unless ($self->{isolate}) {
1477 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1480 # perhaps this IS what we want after all
1481 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1484 sub handle_42 {goto &handle_28}
1488 sub handle_44 {goto &handle_37}
1489 sub handle_45 {goto &handle_37}
1490 sub handle_46 {goto &handle_37}
1491 sub handle_47 {goto &handle_37}
1492 sub handle_48 {goto &handle_37}
1494 # message and database
1503 if (eph_dup($line)) {
1507 if ($pc->[1] eq $main::mycall) {
1508 DXMsg::handle_49($self, @$pc);
1510 $self->route($pc->[1], $line) unless $self->is_clx;
1514 # keep alive/user list
1523 return if (eph_dup($line));
1525 my $call = $pc->[1];
1527 my $node = Route::Node::get($call);
1529 return unless $node->call eq $self->{call};
1530 $node->usercount($pc->[2]) unless $node->users;
1532 $node->PC92C_dxchan($self->call, $pc->[-1]);
1534 # input filter if required
1535 # return unless $self->in_filter_route($node);
1537 unless ($self->{isolate}) {
1538 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1540 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1544 # incoming ping requests/answers
1554 my $from = $pc->[2];
1555 my $flag = $pc->[3];
1557 if ($to eq $main::myalias) {
1558 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1563 if ($to eq $main::mycall) {
1565 $self->send(pc51($from, $to, '0'));
1567 DXXml::Ping::handle_ping_reply($self, $from);
1570 if (eph_dup($line)) {
1573 # route down an appropriate thingy
1574 $self->route($to, $line);
1578 sub handle_61 { goto &handle_11; }
1580 # dunno but route it
1589 my $call = $pc->[1];
1590 if ($call ne $main::mycall) {
1591 $self->route($call, $line);
1604 my $call = $pc->[1];
1607 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1608 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1609 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1612 $pc = [ map { unpad($_) } @$pc ];
1614 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1618 my $wcy = WCY::update($d, @$pc[2..12]);
1619 dbg("WCY: <$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');
1621 if (defined &Local::wcy) {
1624 $rep = Local::wcy($self, @$pc[1..12]);
1629 # broadcast to the eager world
1630 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1633 # remote commands (incoming)
1642 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1645 # remote command replies
1654 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1657 # decode a pc92 call: flag call : version : build
1658 sub _decode_pc92_call
1661 my @part = split /:/, $icall;
1662 my ($flag, $call) = unpack "A A*", $part[0];
1663 unless (defined $flag && $flag ge '0' && $flag le '7') {
1664 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1667 unless ($call && is_callsign($call)) {
1668 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1671 my $is_node = $flag & 4;
1672 my $is_extnode = $flag & 2;
1673 my $here = $flag & 1;
1674 my $version = $part[1] || 0;
1675 my $build = $part[2] || 0;
1676 my $ip = $part[3] || '';
1678 # remember that, at this stage, IPV6 addresses have : replaced by ,
1679 if (length $version > 4 && $version =~ /[,\.][\da-f]{1,4}/i) {
1683 $version =~ s/\D//g;
1684 $version = 0 unless $version && $version =~ /^[0-9]+$/;
1687 $build = 0 unless $build && $build =~ /^[0-9]+$/;
1690 $ip =~ s/^::ffff://i;
1691 $ip = '' unless is_ipaddr($ip);
1693 dbg("'$icall' = '" . join("', '", $call, $is_node, $is_extnode, $here, $version, $build, $ip) . "'") if isdbg('pc92');
1694 return ($call, $is_node, $is_extnode, $here, $version+0, $build+0, $ip);
1697 # decode a pc92 call: flag call : version : build
1698 sub _encode_pc92_call
1702 # plain call or value
1703 return $ref unless ref $ref;
1705 my $ext = shift || 0;
1707 my $call = $ref->call;
1709 $flag |= $ref->here ? 1 : 0;
1710 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1712 my $dxchan = DXChannel::get($call);
1713 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1714 if (($ext & 1) && $ref->version) {
1715 my $version = $ref->version || 1.0;
1716 $version = $version * 100 + 5300 if $version < 50;
1717 $extra .= ":" . $version;
1720 if (($ext & 2) && $ref->ip) {
1723 $extra .= ':' . $ip;
1726 return "$flag$call$extra";
1739 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1742 # remove spurious IPV6 prefix on IPV4 addresses
1747 my $ncall = $parent->call;
1748 if ($ncall ne $call) {
1752 # normalise call, delete any unnormalised calls in the users file.
1753 # then ignore this thingy
1754 my $normcall = normalise_call($call);
1755 if ($normcall ne $call) {
1756 next if DXChannel::get($call);
1757 $user = DXUser::get($call);
1758 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1759 $user->del if $user;
1760 $call = $normcall; # this is safe because a route add will ignore duplicates
1764 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1765 $user = check_add_user($call, 'A');
1766 @rout = $parent->add($call, $version, Route::here($here), $ip);
1767 $r = Route::Node::get($call);
1768 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1769 if ($version && is_numeric($version) && !$r->K && !$user->K) {
1770 my $old = $user->sort;
1771 if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1773 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1774 } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455))) {
1775 unless ($version > 0 && $build == 0) {
1778 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1782 $r->version($user->version) if $user->version;
1783 $r->build($user->build) if $user->build;
1784 $r->K(1) if $user->K;
1786 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1787 $user = check_add_user($call, 'U', $parent->call);
1788 @rout = $parent->add_user($call, Route::here($here), $ip);
1789 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1790 $r = Route::User::get($call);
1794 Log('DXProt', "PC92A $call -> $ip on $ncall");
1796 if ($pc92_slug_changes && $parent == $main::routeroot) {
1797 $things_add{$call} = Route::get($call);
1798 delete $things_del{$call};
1800 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1802 dbgprintring(10) if isdbg('nologchan');
1803 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1815 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1820 $ref = Route::Node::get($call);
1821 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1822 @rout = $ref->del($parent) if $ref;
1824 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1825 $ref = Route::User::get($call);
1827 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1828 @rout = $parent->del_user($ref);
1831 if ($pc92_slug_changes && $parent == $main::routeroot) {
1832 $things_del{$call} = $ref unless exists $things_add{$call};
1833 delete $things_add{$call};
1839 # this will only happen if we are slugging changes and
1840 # there are some changes to be sent, it will create an add or a delete
1842 sub gen_pc92_changes
1844 my @add = values %things_add;
1845 my @del = values %things_del;
1846 return (\@add, \@del);
1849 sub clear_pc92_changes
1851 %things_add = %things_del = ();
1852 $last_pc92_slug = $main::systime;
1861 return $_last_pc9x_id;
1866 if (!$_last_time || $_last_time != $main::systime) {
1867 $_last_time = $main::systime;
1869 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1872 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1883 # check that the time is between 0 >= $t < 86400
1884 unless ($t >= 0 && $t < 86400) {
1885 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1889 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1890 my $now = $main::systime - $main::systime_daystart ;
1891 my $diff = abs($now - $t);
1892 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1893 my $c = ref $call ? $call->call : $call;
1894 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1898 my $parent = ref $call ? $call : Route::Node::get($call);
1900 # we only do this for external calls whose routing table
1901 # record come and go. The reference for mycall is permanent
1902 # and not that frequently used, it also never times out, so
1903 # the id on it is completely unreliable. Besides, only commands
1904 # originating on this box will go through this code...
1905 if ($parent->call ne $main::mycall) {
1906 my $lastid = $parent->lastid;
1907 if (defined $lastid) {
1909 # note that this is where we determine whether this pc9x has come in yesterday
1910 # but is still greater (modulo 86400) than the lastid or is simply an old
1911 # duplicate sentence. To determine this we need to do some module 86400
1912 # arithmetic. High numbers mean that this is an old duplicate sentence,
1913 # low numbers that it is a new sentence.
1915 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1916 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1917 # 86378 respectively in the calculation below).
1919 if ($t+86400-$lastid > $pc9x_past_age) {
1920 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1923 } elsif ($t == $lastid) {
1924 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1927 # check that if we have a low number in lastid that yesterday's numbers
1928 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1929 if ($lastid+86400-$t < $pc9x_past_age) {
1930 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1937 $parent = Route::Node->new($call);
1939 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1942 if (isdbg('pc92dedupe')) {
1943 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1944 my $val = $parent->{lastid};
1945 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1946 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1948 $parent->lastid($t);
1953 sub pc92_handle_first_slot
1960 my $oparent = $parent;
1964 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1965 if ($call && $is_node) {
1966 if ($call eq $main::mycall) {
1967 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
1970 if ($call eq $main::myalias) {
1971 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
1974 # this is only accepted from my "self".
1975 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1976 # locally connected. Local nodes always take precedence. But we remember the lastid
1977 # to try to reduce the number of dupe PC92s for this external node.
1978 if (DXChannel::get($call) && $call ne $self->{call}) {
1979 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1980 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1984 # reparent to external node (note that we must have received a 'C' or 'A' record
1985 # from the true parent node for this external before we get one for the this node
1986 unless ($parent = Route::Node::get($call)) {
1987 if ($is_extnode && $oparent) {
1988 @radd = _add_thingy($oparent, $slot, $self, $hops);
1991 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1995 $parent = check_pc9x_t($call, $t, 92) || return;
1996 $parent->via_pc92(1);
1997 $parent->PC92C_dxchan($self->{call}, $hops);
2000 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
2003 $parent->here(Route::here($here));
2004 $parent->version($version || $pc19_version) if $version;
2005 $parent->build($build) if $build;
2006 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2007 return ($parent, @radd);
2010 # DXSpider routing entries
2021 my $pcall = $pc->[1];
2023 my $sort = $pc->[3];
2024 my $hops = $pc->[-1];
2026 # this catches loops of A/Ds
2027 # if (eph_dup($line, $pc9x_dupe_age)) {
2031 if ($pcall eq $main::mycall) {
2032 LogDbg('err', "PCPROT: looped back, ignored");
2036 if ($pcall eq $main::myalias) {
2037 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
2041 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
2042 if ($self->{isolate}) {
2043 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
2045 } elsif (!$self->user->wantpc9x) {
2046 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
2049 $self->state('init92');
2050 $self->{do_pc9x} = 1;
2051 dbg("DXPROT: Do pc9x set on $pcall");
2054 unless ($self->{do_pc9x}) {
2055 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2059 # don't create routing entries for D records that don't already exist
2060 # this is what causes all those PC92 loops!
2061 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
2062 my $oparent = $parent;
2064 $parent->do_pc9x(1);
2065 $parent->via_pc92(1);
2067 if ($sort eq 'F' || $sort eq 'R') {
2069 # this is the route finding section
2070 # here is where the consequences of the 'find' command
2073 my $from = $pc->[4];
2074 my $target = $pc->[5];
2080 if ($ref = DXChannel::get($target)) {
2081 $flag = 1; # we are directly connected
2083 $ref = Route::get($target);
2084 $dxchan = $ref->dxchan;
2087 if ($ref && $flag && $dxchan) {
2088 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
2091 } elsif ($sort eq 'R') {
2092 if (my $dxchan = DXChannel::get($from)) {
2093 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
2095 my $ref = Route::get($from);
2097 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
2099 $_->send($line) for @dxchan;
2101 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2104 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2110 } elsif ($sort eq 'K') {
2111 $pc92Kin += length $line;
2113 # remember the last channel we arrived on
2114 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2116 my @ent = _decode_pc92_call($pc->[4]);
2121 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
2122 return unless $parent; # dupe
2124 push @radd, $add if $add;
2126 my $call = $parent->call;
2127 my $version = $ent[4] || 0;
2128 my $build = $ent[5] || 0;
2130 my $oldbuild = $parent->build || 0;
2131 my $oldversion = $parent->version || 0;
2132 my $user = check_add_user($parent->call, 'S');
2133 my $oldsort = $user->sort // '';
2135 dbg("PCPROT: PC92 K v: $version ov: $oldversion b: $build ob: $oldbuild pk: " . ($parent->K || '0') . " uk: " . ($user->K || 0)) if isdbg('pc92k');
2137 if (is_numeric($version) || is_numeric($build)) {
2139 if (($oldversion ne $version || $build ne $oldbuild)) {
2140 dbg("PCPROT: PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild)");
2141 $user->version($parent->version($version));
2142 $user->build($parent->build($build));
2145 if ($oldsort ne 'S') {
2146 dbg("PCPROT: PC92 K node $call updated sort: $sort (was $oldsort)");
2151 dbg("PCPROT: PC92 K node $call updated - marked as PC92 K user");
2155 $user->put if $changed;
2156 $parent->K(1); # mark this as come in on a K
2158 dbg("DXProt PC92 K version call $call: invalid version: '$version' or build: '$version', ignored");
2160 dbg("ROUTE: reset obscount on $call now " . $parent->obscount) if isdbg('obscount');
2162 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2164 $pc92Ain += length $line if $sort eq 'A';
2165 $pc92Cin += length $line if $sort eq 'C';
2166 $pc92Din += length $line if $sort eq 'D';
2168 # remember the last channel we arrived on
2169 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2171 # this is the main route section
2172 # here is where all the routes are created and destroyed
2174 # cope with missing duplicate node calls in the first slot
2175 my $me = $pc->[4] || '';
2176 $me ||= _encode_pc92_call($parent) unless $me ;
2178 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2182 # look at the first one which will always be a node of some sort
2183 # except in the case of 'A' or 'D' in which the $pcall is used
2184 # otherwise use the node call and update any information
2185 # that needs to be done.
2188 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2189 return unless $parent; # dupe
2192 push @radd, $add if $add;
2195 # do a pass through removing any references to either mycall
2199 next unless $_ && @$_;
2200 if ($_->[0] eq $main::mycall) {
2201 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2204 if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
2205 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2214 push @radd, _add_thingy($parent, $_, $self, $hops);
2216 } elsif ($sort eq 'D') {
2218 push @rdel, _del_thingy($parent, $_, $self);
2220 } elsif ($sort eq 'C') {
2221 my (@nodes, @users);
2223 # we reset obscounts on config records as well as K records
2225 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2228 foreach my $r (@nent) {
2229 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2232 push @nodes, $r->[0];
2234 push @users, $r->[0];
2237 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2241 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2244 foreach my $r (@nent) {
2247 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2251 foreach my $r (@$dnodes) {
2252 push @rdel,_del_thingy($parent, [$r, 1], $self);
2254 foreach my $r (@$dusers) {
2255 push @rdel,_del_thingy($parent, [$r, 0], $self);
2258 # remember this last PC92C for rebroadcast on demand
2259 $parent->last_PC92C($line);
2261 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2265 foreach my $r (@rdel) {
2268 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2269 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2271 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2272 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2273 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2274 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2275 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2278 # broadcast it if we get here
2279 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2282 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2283 # might be on two or more nodes at the same time or that there may be more than
2284 # one equal distance neighbour to a node.
2286 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2287 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2288 # each and then combined to give a set of dxchans to send the PC9x record down
2290 sub find_pc9x_routes
2293 my $ref = Route::get($to);
2297 if ($ref->isa('Route::User')) {
2298 my $dxchan = DXChannel::get($to);
2299 push @parent, $to if $dxchan;
2300 push @parent, $ref->parents;
2304 foreach my $p (@parent) {
2306 my @routes = Route::findroutes($p);
2307 foreach my $r (@routes) {
2308 $lasthops = $r->[0] unless defined $lasthops;
2309 if ($r->[0] == $lasthops) {
2310 $cand{$r->[1]->call} = $r->[1];
2316 return values %cand;
2327 # $self->{do_pc9x} ||= 1;
2329 my $pcall = $pc->[1]; # this is now checked earlier
2331 # remember that we are converting PC10->PC93 and self will be $main::me if it
2333 unless ($self->{do_pc9x}) {
2334 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2339 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2341 my $to = uc $pc->[3];
2342 my $from = uc $pc->[4];
2343 my $via = uc $pc->[5];
2344 my $text = $pc->[6];
2345 my $onode = uc $pc->[7];
2346 $onode = $pcall if @$pc <= 8;
2348 # this is catch loops caused by bad software ...
2349 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2353 if (isdbg('progress')) {
2354 my $vs = $via ne '*' ? " via $via" : '';
2355 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2359 # if this is a 'bad spotter' user then ignore it
2361 $nossid =~ s/-\d+$//;
2362 if ($badspotter->in($nossid)) {
2363 dbg($line) if isdbg('nologchan');
2364 dbg("PCPROT: Bad Spotter, dropped");
2368 # ignore PC93 coming in from outside this node with a target of local
2369 if ($to eq 'LOCAL' && $self != $main::me) {
2370 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2374 # will we allow it at all?
2377 if (@bad = BadWords::check($text)) {
2378 my $bw = join ', ', @bad;
2379 dbg($line) if isdbg('nologchan');
2380 dbg("PCPROT: Badwords: '$bw', dropped");
2385 # if it is routeable then then treat it like a talk
2386 my $ref = Route::get($to);
2390 # convert to PC10 or local talks where appropriate
2391 # PC93 capable nodes of the same hop count all get a copy
2392 # if there is a PC10 node then it will get a copy and that
2393 # will be it. Hopefully such a node will not figure highly
2394 # in the route list, unless it is local, 'cos it don't issue PC92s!
2395 # note that both local and PC93s at the same time are possible if the
2396 # user on more than one node.
2397 my @routes = find_pc9x_routes($to);
2399 foreach $dxchan (@routes) {
2400 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2401 if ($dxchan->{do_pc9x}) {
2402 $dxchan->send($line);
2404 $dxchan->talk($from, $to, $via, $text, $onode);
2407 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2412 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2414 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2415 my $wx = $to eq 'WX' ? '1' : '0';
2416 my $local = $via eq 'LOCAL' ? '*' : $via;
2418 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2419 return if $via eq 'LOCAL';
2420 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2421 # chat messages really only locally connected users
2422 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2425 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2426 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2429 # if get here then rebroadcast the thing with its Hop count decremented (if
2430 # there is one). If it has a hop count and it decrements to zero then don't
2433 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2445 unless (eph_dup($line)) {
2447 my $pcall = $pc->[1];
2448 unless (is_callsign($pcall)) {
2449 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2453 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2454 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2456 unless ($self->{isolate}) {
2457 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me