perl/DXProt.pm

   1 #!/usr/bin/perl
   2 #
   3 # This module impliments the protocal mode for a dx cluster
   4 #
   5 # Copyright (c) 1998 Dirk Koopman G1TLH
   6 #
   7 # $Id$
   8 #
   9
  10 package DXProt;
  11
  12 @ISA = qw(DXChannel);
  13
  14 use DXUtil;
  15 use DXChannel;
  16 use DXUser;
  17 use DXM;
  18 use DXProtVars;
  19 use DXCommandmode;
  20 use DXLog;
  21 use Spot;
  22 use DXProtout;
  23 use DXDebug;
  24 use Filter;
  25 use Local;
  26 use DXDb;
  27 use AnnTalk;
  28 use Geomag;
  29 use WCY;
  30 use Time::HiRes qw(gettimeofday tv_interval);
  31 use BadWords;
  32 use DXHash;
  33 use Route;
  34 use Route::Node;
  35 use Script;
  36
  37 use strict;
  38
  39 use vars qw($VERSION $BRANCH);
  40 $VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
  41 $BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/ ) || 0;
  42 $main::build += $VERSION;
  43 $main::branch += $BRANCH;
  44
  45 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
  46                         $last_hour $last10 %eph  %pings %rcmds $ann_to_talk
  47                         %nodehops $baddx $badspotter $badnode $censorpc $rspfcheck
  48                         $allowzero $decode_dk0wcy $send_opernam @checklist);
  49
  50 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  51 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  52
  53 $last_hour = time;                              # last time I did an hourly periodic update
  54 %pings = ();                    # outstanding ping requests outbound
  55 %rcmds = ();                    # outstanding rcmd requests outbound
  56 %nodehops = ();                 # node specific hop control
  57 $censorpc = 1;                                  # Do a BadWords::check on text fields and reject things
  58                                                                 # loads of 'bad things'
  59 $baddx = new DXHash "baddx";
  60 $badspotter = new DXHash "badspotter";
  61 $badnode = new DXHash "badnode";
  62 $last10 = $last_pc50 = time;
  63 $ann_to_talk = 1;
  64 $rspfcheck = 1;
  65 $eph_restime = 180;
  66 $eph_info_restime = 60*60;
  67 $eph_pc34_restime = 30;
  68
  69 @checklist =
  70 (
  71  [ qw(c c m bp bc c) ],                 # pc10
  72  [ qw(f m d t m c c h) ],               # pc11
  73  [ qw(c bc m bp bm p h) ],              # pc12
  74  [ qw(c h) ],                                   #
  75  [ qw(c h) ],                                   #
  76  [ qw(c m h) ],                                 #
  77  undef ,                                                # pc16 has to be validated manually
  78  [ qw(c c h) ],                                 # pc17
  79  [ qw(m n) ],                                   # pc18
  80  undef ,                                                # pc19 has to be validated manually
  81  undef ,                                                # pc20 no validation
  82  [ qw(c m h) ],                                 # pc21
  83  undef ,                                                # pc22 no validation
  84  [ qw(d n n n n m c c h) ],             # pc23
  85  [ qw(c p h) ],                                 # pc24
  86  [ qw(c c n n) ],                               # pc25
  87  [ qw(f m d t m c c bc) ],              # pc26
  88  [ qw(d n n n n m c c bc) ],    # pc27
  89  [ qw(c c m c d t p m bp n p bp bc) ], # pc28
  90  [ qw(c c n m) ],                               # pc29
  91  [ qw(c c n) ],                                 # pc30
  92  [ qw(c c n) ],                                 # pc31
  93  [ qw(c c n) ],                                 # pc32
  94  [ qw(c c n) ],                                 # pc33
  95  [ qw(c c m) ],                                 # pc34
  96  [ qw(c c m) ],                                 # pc35
  97  [ qw(c c m) ],                                 # pc36
  98  [ qw(c c n m) ],                               # pc37
  99  undef,                                                 # pc38 not interested
 100  [ qw(c m) ],                                   # pc39
 101  [ qw(c c m p n) ],                             # pc40
 102  [ qw(c n m h) ],                               # pc41
 103  [ qw(c c n) ],                                 # pc42
 104  undef,                                                 # pc43 don't handle it
 105  [ qw(c c n m m c) ],                   # pc44
 106  [ qw(c c n m) ],                               # pc45
 107  [ qw(c c n) ],                                 # pc46
 108  undef,                                                 # pc47
 109  undef,                                                 # pc48
 110  [ qw(c m h) ],                                 # pc49
 111  [ qw(c n h) ],                                 # pc50
 112  [ qw(c c n) ],                                 # pc51
 113  undef,
 114  undef,
 115  undef,
 116  undef,
 117  undef,
 118  undef,
 119  undef,
 120  undef,
 121  undef,                                                 # pc60
 122  undef,
 123  undef,
 124  undef,
 125  undef,
 126  undef,
 127  undef,
 128  undef,
 129  undef,
 130  undef,
 131  undef,                                                 # pc70
 132  undef,
 133  undef,
 134  [ qw(d n n n n n n m m m c c h) ],     # pc73
 135  undef,
 136  undef,
 137  undef,
 138  undef,
 139  undef,
 140  undef,
 141  undef,                                                 # pc80
 142  undef,
 143  undef,
 144  undef,
 145  [ qw(c c c m) ],                               # pc84
 146  [ qw(c c c m) ],                               # pc85
 147 );
 148
 149 # use the entry in the check list to check the field list presented
 150 # return OK if line NOT in check list (for now)
 151 sub check
 152 {
 153         my $n = shift;
 154         $n -= 10;
 155         return 0 if $n < 0 || $n > @checklist;
 156         my $ref = $checklist[$n];
 157         return 0 unless ref $ref;
 158
 159         my $i;
 160         shift;    # not interested in the first field
 161         for ($i = 0; $i < @$ref; $i++) {
 162                 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
 163                 return 0 unless $act;
 164                 next if $blank && $_[$i] =~ /^[ \*]$/;
 165                 if ($act eq 'c') {
 166                         return $i+1 unless is_callsign($_[$i]);
 167                 } elsif ($act eq 'm') {
 168                         return $i+1 unless is_pctext($_[$i]);
 169                 } elsif ($act eq 'p') {
 170                         return $i+1 unless is_pcflag($_[$i]);
 171                 } elsif ($act eq 'f') {
 172                         return $i+1 unless is_freq($_[$i]);
 173                 } elsif ($act eq 'n') {
 174                         return $i+1 unless $_[$i] =~ /^[\d ]+$/;
 175                 } elsif ($act eq 'h') {
 176                         return $i+1 unless $_[$i] =~ /^H\d\d?$/;
 177                 } elsif ($act eq 'd') {
 178                         return $i+1 unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
 179                 } elsif ($act eq 't') {
 180                         return $i+1 unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
 181                 }
 182         }
 183         return 0;
 184 }
 185
 186 sub init
 187 {
 188         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
 189         confess $@ if $@;
 190 }
 191
 192 #
 193 # obtain a new connection this is derived from dxchannel
 194 #
 195
 196 sub new
 197 {
 198         my $self = DXChannel::alloc(@_);
 199
 200         # add this node to the table, the values get filled in later
 201         my $pkg = shift;
 202         my $call = shift;
 203         $main::routeroot->add($call, '5000', Route::here(1)) if $call ne $main::mycall;
 204
 205         return $self;
 206 }
 207
 208 # this is how a pc connection starts (for an incoming connection)
 209 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
 210 # all the crap that comes between).
 211 sub start
 212 {
 213         my ($self, $line, $sort) = @_;
 214         my $call = $self->{call};
 215         my $user = $self->{user};
 216
 217         # log it
 218         my $host = $self->{conn}->{peerhost} || "unknown";
 219         Log('DXProt', "$call connected from $host");
 220
 221         # remember type of connection
 222         $self->{consort} = $line;
 223         $self->{outbound} = $sort eq 'O';
 224         my $priv = $user->priv;
 225         $priv = $user->priv(1) unless $priv;
 226         $self->{priv} = $priv;     # other clusters can always be 'normal' users
 227         $self->{lang} = $user->lang || 'en';
 228         $self->{isolate} = $user->{isolate};
 229         $self->{consort} = $line;       # save the connection type
 230         $self->{here} = 1;
 231         $self->{width} = 80;
 232
 233         # sort out registration
 234         $self->{registered} = 1;
 235
 236         # get the output filters
 237         $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
 238         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
 239         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
 240         $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
 241         $self->{routefilter} = Filter::read_in('route', $call, 0) || Filter::read_in('route', 'node_default', 0) unless $self->{isolate} ;
 242
 243
 244         # get the INPUT filters (these only pertain to Clusters)
 245         $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
 246         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
 247         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
 248         $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);
 249         $self->{inroutefilter} = Filter::read_in('route', $call, 1) || Filter::read_in('route', 'node_default', 1) unless $self->{isolate};
 250
 251         # set unbuffered and no echo
 252         $self->send_now('B',"0");
 253         $self->send_now('E',"0");
 254         $self->conn->echo(0) if $self->conn->can('echo');
 255
 256         # ping neighbour node stuff
 257         my $ping = $user->pingint;
 258         $ping = 5*60 unless defined $ping;
 259         $self->{pingint} = $ping;
 260         $self->{nopings} = $user->nopings || 2;
 261         $self->{pingtime} = [ ];
 262         $self->{pingave} = 999;
 263         $self->{metric} ||= 100;
 264         $self->{lastping} = $main::systime;
 265
 266         # send initialisation string
 267         unless ($self->{outbound}) {
 268                 $self->sendinit;
 269         }
 270
 271         $self->state('init');
 272         $self->{pc50_t} = $main::systime;
 273
 274         # send info to all logged in thingies
 275         $self->tell_login('loginn');
 276
 277         # run a script send the output to the debug file
 278         my $script = new Script(lc $call) || new Script('node_default');
 279         $script->run($self) if $script;
 280 }
 281
 282 #
 283 # send outgoing 'challenge'
 284 #
 285
 286 sub sendinit
 287 {
 288         my $self = shift;
 289         $self->send(pc18());
 290 }
 291
 292 #
 293 # This is the normal pcxx despatcher
 294 #
 295 sub normal
 296 {
 297         my ($self, $line) = @_;
 298         my @field = split /\^/, $line;
 299         return unless @field;
 300
 301         pop @field if $field[-1] eq '~';
 302
 303 #       print join(',', @field), "\n";
 304
 305
 306         # process PC frames, this will fail unless the frame starts PCnn
 307         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 308         return unless $pcno;
 309         return if $pcno < 10 || $pcno > 99;
 310
 311         # check for and dump bad protocol messages
 312         my $n = check($pcno, @field);
 313         if ($n) {
 314                 dbg("PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")") if isdbg('chanerr');
 315                 return;
 316         }
 317
 318         # local processing 1
 319         my $pcr;
 320         eval {
 321                 $pcr = Local::pcprot($self, $pcno, @field);
 322         };
 323 #       dbg("Local::pcprot error $@") if isdbg('local') if $@;
 324         return if $pcr;
 325
 326  SWITCH: {
 327                 if ($pcno == 10) {              # incoming talk
 328
 329                         # rsfp check
 330                         return if $rspfcheck and !$self->rspfcheck(0, $field[6], $field[1]);
 331
 332                         # will we allow it at all?
 333                         if ($censorpc) {
 334                                 my @bad;
 335                                 if (@bad = BadWords::check($field[3])) {
 336                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 337                                         return;
 338                                 }
 339                         }
 340
 341                         # is it for me or one of mine?
 342                         my ($from, $to, $via, $call, $dxchan);
 343                         $from = $field[1];
 344                         if ($field[5] gt ' ') {
 345                                 $via = $field[2];
 346                                 $to = $field[5];
 347                         } else {
 348                                 $to = $field[2];
 349                         }
 350
 351                         # if this is a 'nodx' node then ignore it
 352                         if ($badnode->in($field[6]) || ($via && $badnode->in($via))) {
 353                                 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
 354                                 return;
 355                         }
 356
 357                         # if this is a 'bad spotter' user then ignore it
 358                         my $nossid = $from;
 359                         $nossid =~ s/-\d+$//;
 360                         if ($badspotter->in($nossid)) {
 361                                 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
 362                                 return;
 363                         }
 364
 365                         # if we are converting announces to talk is it a dup?
 366                         if ($ann_to_talk) {
 367                                 if (AnnTalk::is_talk_candidate($from, $field[3]) && AnnTalk::dup($from, $to, $field[3])) {
 368                                         dbg("DXPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
 369                                         return;
 370                                 }
 371                         }
 372
 373                         # it is here and logged on
 374                         $dxchan = DXChannel->get($main::myalias) if $to eq $main::mycall;
 375                         $dxchan = DXChannel->get($to) unless $dxchan;
 376                         if ($dxchan && $dxchan->is_user) {
 377                                 $field[3] =~ s/\%5E/^/g;
 378                                 $dxchan->talk($from, $to, $via, $field[3]);
 379                                 return;
 380                         }
 381
 382                         # is it elsewhere, visible on the cluster via the to address?
 383                         # note: this discards the via unless the to address is on
 384                         # the via address
 385                         my ($ref, $vref);
 386                         if ($ref = Route::get($to)) {
 387                                 $vref = Route::Node::get($via) if $via;
 388                                 $vref = undef unless $vref && grep $to eq $_, $vref->users;
 389                                 $ref->dxchan->talk($from, $to, $vref ? $via : undef, $field[3], $field[6]);
 390                                 return;
 391                         }
 392
 393                         # not visible here, send a message of condolence
 394                         $vref = undef;
 395                         $ref = Route::get($from);
 396                         $vref = $ref = Route::Node::get($field[6]) unless $ref;
 397                         if ($ref) {
 398                                 $dxchan = $ref->dxchan;
 399                                 $dxchan->talk($main::mycall, $from, $vref ? $vref->call : undef, $dxchan->msg('talknh', $to) );
 400                         }
 401                         return;
 402                 }
 403
 404                 if ($pcno == 11 || $pcno == 26) { # dx spot
 405
 406                         # route 'foreign' pc26s
 407                         if ($pcno == 26) {
 408                                 if ($field[7] ne $main::mycall) {
 409                                         $self->route($field[7], $line);
 410                                         return;
 411                                 }
 412                         }
 413
 414                         # rsfp check
 415 #                       return if $rspfcheck and !$self->rspfcheck(1, $field[7], $field[6]);
 416
 417                         # if this is a 'nodx' node then ignore it
 418                         if ($badnode->in($field[7])) {
 419                                 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
 420                                 return;
 421                         }
 422
 423                         # if this is a 'bad spotter' user then ignore it
 424                         my $nossid = $field[6];
 425                         $nossid =~ s/-\d+$//;
 426                         if ($badspotter->in($nossid)) {
 427                                 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
 428                                 return;
 429                         }
 430
 431                         # convert the date to a unix date
 432                         my $d = cltounix($field[3], $field[4]);
 433                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 434                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 435                                 dbg("PCPROT: Spot ignored, invalid date or out of range ($field[3] $field[4])\n") if isdbg('chanerr');
 436                                 return;
 437                         }
 438
 439                         # is it 'baddx'
 440                         if ($baddx->in($field[2]) || BadWords::check($field[2]) || $field[2] =~ /COCK/) {
 441                                 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
 442                                 return;
 443                         }
 444
 445                         # do some de-duping
 446                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 447                         $field[2] = unpad($field[2]);   # take off leading and trailing blanks from spotted callsign
 448                         if ($field[2] =~ /BUST\w*$/) {
 449                                 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
 450                                 return;
 451                         }
 452                         if ($censorpc) {
 453                                 my @bad;
 454                                 if (@bad = BadWords::check($field[5])) {
 455                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 456                                         return;
 457                                 }
 458                         }
 459
 460
 461                         my @spot = Spot::prepare($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 462                         # global spot filtering on INPUT
 463                         if ($self->{inspotsfilter}) {
 464                                 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
 465                                 unless ($filter) {
 466                                         dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
 467                                         return;
 468                                 }
 469                         }
 470
 471                         # this goes after the input filtering, but before the add
 472                         # so that if it is input filtered, it isn't added to the dup
 473                         # list. This allows it to come in from a "legitimate" source
 474                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 475                                 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
 476                                 return;
 477                         }
 478
 479                         # add it
 480                         Spot::add(@spot);
 481
 482             #
 483                         # @spot at this point contains:-
 484             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 485                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 486                         # you should be able to route on any of these
 487             #
 488
 489                         # fix up qra locators of known users
 490                         my $user = DXUser->get_current($spot[4]);
 491                         if ($user) {
 492                                 my $qra = $user->qra;
 493                                 unless ($qra && is_qra($qra)) {
 494                                         my $lat = $user->lat;
 495                                         my $long = $user->long;
 496                                         if (defined $lat && defined $long) {
 497                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 498                                                 $user->put;
 499                                         }
 500                                 }
 501
 502                                 # send a remote command to a distant cluster if it is visible and there is no
 503                                 # qra locator and we havn't done it for a month.
 504
 505                                 unless ($user->qra) {
 506                                         my $node;
 507                                         my $to = $user->homenode;
 508                                         my $last = $user->lastoper || 0;
 509                                         if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
 510                                                 my $cmd = "forward/opernam $spot[4]";
 511                                                 # send the rcmd but we aren't interested in the replies...
 512                                                 my $dxchan = $node->dxchan;
 513                                                 if ($dxchan && $dxchan->is_clx) {
 514                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 515                                                 } else {
 516                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 517                                                 }
 518                                                 if ($to ne $field[7]) {
 519                                                         $to = $field[7];
 520                                                         $node = Route::Node::get($to);
 521                                                         if ($node) {
 522                                                                 $dxchan = $node->dxchan;
 523                                                                 if ($dxchan && $dxchan->is_clx) {
 524                                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 525                                                                 } else {
 526                                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 527                                                                 }
 528                                                         }
 529                                                 }
 530                                                 $user->lastoper($main::systime);
 531                                                 $user->put;
 532                                         }
 533                                 }
 534                         }
 535
 536                         # local processing
 537                         my $r;
 538                         eval {
 539                                 $r = Local::spot($self, @spot);
 540                         };
 541 #                       dbg("Local::spot1 error $@") if isdbg('local') if $@;
 542                         return if $r;
 543
 544                         # DON'T be silly and send on PC26s!
 545                         return if $pcno == 26;
 546
 547                         # send out the filtered spots
 548                         send_dx_spot($self, $line, @spot) if @spot;
 549                         return;
 550                 }
 551
 552                 if ($pcno == 12) {              # announces
 553
 554 #                       return if $rspfcheck and !$self->rspfcheck(1, $field[5], $field[1]);
 555
 556                         # announce duplicate checking
 557                         $field[3] =~ s/^\s+//;  # remove leading blanks
 558
 559                         if ($censorpc) {
 560                                 my @bad;
 561                                 if (@bad = BadWords::check($field[3])) {
 562                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 563                                         return;
 564                                 }
 565                         }
 566
 567                         # if this is a 'nodx' node then ignore it
 568                         if ($badnode->in($field[5])) {
 569                                 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
 570                                 return;
 571                         }
 572
 573                         # if this is a 'bad spotter' user then ignore it
 574                         my $nossid = $field[1];
 575                         $nossid =~ s/-\d+$//;
 576                         if ($badspotter->in($nossid)) {
 577                                 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
 578                                 return;
 579                         }
 580
 581                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 582
 583
 584                                 # here's a bit of fun, convert incoming ann with a callsign in the first word
 585                                 # or one saying 'to <call>' to a talk if we can route to the recipient
 586                                 if ($ann_to_talk) {
 587                                         my $call = AnnTalk::is_talk_candidate($field[1], $field[3]);
 588                                         if ($call) {
 589                                                 my $ref = Route::get($call);
 590                                                 if ($ref) {
 591                                                         my $dxchan = $ref->dxchan;
 592                                                         $dxchan->talk($field[1], $call, undef, $field[3], $field[5]) if $dxchan != $self;
 593                                                         return;
 594                                                 }
 595                                         }
 596                                 }
 597
 598                                 # send it
 599                                 $self->send_announce($line, @field[1..6]);
 600                         } else {
 601                                 $self->route($field[2], $line);
 602                         }
 603                         return;
 604                 }
 605
 606                 if ($pcno == 13) {
 607                         last SWITCH;
 608                 }
 609                 if ($pcno == 14) {
 610                         last SWITCH;
 611                 }
 612                 if ($pcno == 15) {
 613                         last SWITCH;
 614                 }
 615
 616                 if ($pcno == 16) {              # add a user
 617
 618                         if (eph_dup($line)) {
 619                                 dbg("PCPROT: dup PC16 detected") if isdbg('chanerr');
 620                                 return;
 621                         }
 622
 623                         # general checks
 624                         my $dxchan;
 625                         my $ncall = $field[1];
 626                         my $newline = "PC16^";
 627
 628                         if ($ncall eq $main::mycall) {
 629                                 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
 630                                 return;
 631                         }
 632                         my $parent = Route::Node::get($ncall);
 633                         unless ($parent) {
 634                                 dbg("PCPROT: Node $ncall not in config") if isdbg('chanerr');
 635                                 return;
 636                         }
 637                         $dxchan = $parent->dxchan;
 638                         if ($dxchan && $dxchan ne $self) {
 639                                 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
 640                                 return;
 641                         }
 642
 643                         # input filter if required
 644                         return unless $self->in_filter_route($parent);
 645
 646                         my $i;
 647                         my @rout;
 648                         for ($i = 2; $i < $#field; $i++) {
 649                                 my ($call, $conf, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 650                                 next unless $call && $conf && defined $here && is_callsign($call);
 651                                 next if $call eq $main::mycall;
 652
 653                                 eph_del_regex("^PC17\\^$call\\^$ncall");
 654
 655                                 $conf = $conf eq '*';
 656
 657                                 # reject this if we think it is a node already
 658                                 my $r = Route::Node::get($call);
 659                                 my $u = DXUser->get_current($call) unless $r;
 660                                 if ($r || ($u && $u->is_node)) {
 661                                         dbg("PCPROT: $call is a node") if isdbg('chanerr');
 662                                         next;
 663                                 }
 664
 665                                 $r = Route::User::get($call);
 666                                 my $flags = Route::here($here)|Route::conf($conf);
 667
 668                                 if ($r) {
 669                                         if ($r->flags != $flags) {
 670                                                 $r->flags($flags);
 671                                                 push @rout, $r;
 672                                         }
 673                                         $r->addparent($parent);
 674                                 } else {
 675                                         push @rout, $parent->add_user($call, $flags);
 676                                 }
 677
 678                                 # add this station to the user database, if required
 679                                 $call =~ s/-\d+$//o;        # remove ssid for users
 680                                 my $user = DXUser->get_current($call);
 681                                 $user = DXUser->new($call) if !$user;
 682                                 $user->homenode($parent->call) if !$user->homenode;
 683                                 $user->node($parent->call);
 684                                 $user->lastin($main::systime) unless DXChannel->get($call);
 685                                 $user->put;
 686                         }
 687
 688                         # queue up any messages (look for privates only)
 689                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 690
 691                         $self->route_pc16($parent, @rout) if @rout;
 692                         return;
 693                 }
 694
 695                 if ($pcno == 17) {              # remove a user
 696                         my $dxchan;
 697                         my $ncall = $field[2];
 698                         my $ucall = $field[1];
 699
 700                         eph_del_regex("^PC16\\^$ncall.*$ucall");
 701
 702                         if ($ncall eq $main::mycall) {
 703                                 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
 704                                 return;
 705                         }
 706
 707                         my $uref = Route::User::get($ucall);
 708                         unless ($uref) {
 709                                 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
 710                                 return;
 711                         }
 712                         my $parent = Route::Node::get($ncall);
 713                         unless ($parent) {
 714                                 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
 715                                 return;
 716                         }
 717
 718                         $dxchan = $parent->dxchan;
 719                         if ($dxchan && $dxchan ne $self) {
 720                                 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
 721                                 return;
 722                         }
 723
 724                         # input filter if required
 725                         return unless $self->in_filter_route($parent);
 726
 727                         $parent->del_user($uref);
 728
 729                         if (eph_dup($line)) {
 730                                 dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
 731                                 return;
 732                         }
 733
 734                         $self->route_pc17($parent, $uref);
 735                         return;
 736                 }
 737
 738                 if ($pcno == 18) {              # link request
 739                         $self->state('init');
 740
 741                         # record the type and version offered
 742                         if ($field[1] =~ /DXSpider Version: (\d+\.\d+) Build: (\d+\.\d+)/) {
 743                                 $self->version(53 + $1);
 744                                 $self->user->version(53 + $1);
 745                                 $self->build(0 + $2);
 746                                 $self->user->build(0 + $2);
 747                                 unless ($self->is_spider) {
 748                                         $self->user->sort('S');
 749                                         $self->user->put;
 750                                         $self->sort('S');
 751                                 }
 752                         } else {
 753                                 $self->version(50.0);
 754                                 $self->version($field[2] / 100) if $field[2] && $field[2] =~ /^\d+$/;
 755                                 $self->user->version($self->version);
 756                         }
 757
 758                         # first clear out any nodes on this dxchannel
 759                         my $parent = Route::Node::get($self->{call});
 760                         my @rout = $parent->del_nodes;
 761                         $self->route_pc21(@rout, $parent) if @rout;
 762                         $self->send_local_config();
 763                         $self->send(pc20());
 764                         return;             # we don't pass these on
 765                 }
 766
 767                 if ($pcno == 19) {              # incoming cluster list
 768                         my $i;
 769                         my $newline = "PC19^";
 770
 771                         if (eph_dup($line)) {
 772                                 dbg("PCPROT: dup PC19 detected") if isdbg('chanerr');
 773                                 return;
 774                         }
 775
 776                         # new routing list
 777                         my @rout;
 778                         my $parent = Route::Node::get($self->{call});
 779                         unless ($parent) {
 780                                 dbg("DXPROT: my parent $self->{call} has disappeared");
 781                                 $self->disconnect;
 782                                 return;
 783                         }
 784
 785                         # parse the PC19
 786                         for ($i = 1; $i < $#field-1; $i += 4) {
 787                                 my $here = $field[$i];
 788                                 my $call = uc $field[$i+1];
 789                                 my $conf = $field[$i+2];
 790                                 my $ver = $field[$i+3];
 791                                 next unless defined $here && defined $conf && is_callsign($call);
 792
 793                                 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
 794
 795                                 # check for sane parameters
 796 #                               $ver = 5000 if $ver eq '0000';
 797                                 next if $ver < 5000; # only works with version 5 software
 798                                 next if length $call < 3; # min 3 letter callsigns
 799                                 next if $call eq $main::mycall;
 800
 801                                 # check that this PC19 isn't trying to alter the wrong dxchan
 802                                 my $dxchan = DXChannel->get($call);
 803                                 if ($dxchan && $dxchan != $self) {
 804                                         dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
 805                                         next;
 806                                 }
 807
 808                                 # update it if required
 809                                 my $r = Route::Node::get($call);
 810                                 my $flags = Route::here($here)|Route::conf($conf);
 811                                 if ($r) {
 812                                         my $ar;
 813                                         if ($call ne $parent->call) {
 814                                                 if ($self->in_filter_route($r)) {
 815                                                         $ar = $parent->add($call, $ver, $flags);
 816                                                         push @rout, $ar if $ar;
 817                                                 } else {
 818                                                         next;
 819                                                 }
 820                                         }
 821                                         if ($r->version ne $ver || $r->flags != $flags) {
 822                                                 $r->version($ver);
 823                                                 $r->flags($flags);
 824                                                 push @rout, $r unless $ar;
 825                                         }
 826                                 } else {
 827                                         if ($call eq $self->{call}) {
 828                                                 dbg("DXPROT: my channel route for $call has disappeared");
 829                                                 next;
 830                                         };
 831
 832                                         my $new = Route->new($call);          # throw away
 833                                     if ($self->in_filter_route($new)) {
 834                                                 my $r = $parent->add($call, $ver, $flags);
 835                                                 push @rout, $r;
 836                                         } else {
 837                                                 next;
 838                                         }
 839                                 }
 840
 841                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 842                                 my $mref = DXMsg::get_busy($call);
 843                                 $mref->stop_msg($call) if $mref;
 844
 845                                 # add this station to the user database, if required (don't remove SSID from nodes)
 846                                 my $user = DXUser->get_current($call);
 847                                 if (!$user) {
 848                                         $user = DXUser->new($call);
 849                                         $user->sort('A');
 850                                         $user->priv(1);                   # I have relented and defaulted nodes
 851                                         $user->lockout(1);
 852                                         $user->homenode($call);
 853                                         $user->node($call);
 854                                 }
 855                                 $user->lastin($main::systime) unless DXChannel->get($call);
 856                                 $user->put;
 857                         }
 858
 859
 860                         $self->route_pc19(@rout) if @rout;
 861                         return;
 862                 }
 863
 864                 if ($pcno == 20) {              # send local configuration
 865                         $self->send_local_config();
 866                         $self->send(pc22());
 867                         $self->state('normal');
 868                         $self->{lastping} = 0;
 869                         return;
 870                 }
 871
 872                 if ($pcno == 21) {              # delete a cluster from the list
 873                         my $call = uc $field[1];
 874
 875                         eph_del_regex("^PC1[79].*$call");
 876
 877                         # if I get a PC21 from the same callsign as self then treat it
 878                         # as a PC39: I have gone away
 879                         if ($call eq $self->call) {
 880                                 $self->disconnect(1);
 881                                 return;
 882                         }
 883
 884                         my @rout;
 885                         my $parent = Route::Node::get($self->{call});
 886                         unless ($parent) {
 887                                 dbg("DXPROT: my parent $self->{call} has disappeared");
 888                                 $self->disconnect;
 889                                 return;
 890                         }
 891                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 892                                 my $node = Route::Node::get($call);
 893                                 if ($node) {
 894
 895                                         my $dxchan = DXChannel->get($call);
 896                                         if ($dxchan && $dxchan != $self) {
 897                                                 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chanerr');
 898                                                 return;
 899                                         }
 900
 901                                         # input filter it
 902                                         return unless $self->in_filter_route($node);
 903
 904                                         # routing objects
 905                                         push @rout, $node->del($parent);
 906                                 }
 907                         } else {
 908                                 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
 909                                 return;
 910                         }
 911
 912 #                       if (eph_dup($line)) {
 913 #                               dbg("PCPROT: dup PC21 detected") if isdbg('chanerr');
 914 #                               return;
 915 #                       }
 916
 917                         $self->route_pc21(@rout) if @rout;
 918                         return;
 919                 }
 920
 921                 if ($pcno == 22) {
 922                         $self->state('normal');
 923                         $self->{lastping} = 0;
 924                         return;
 925                 }
 926
 927                 if ($pcno == 23 || $pcno == 27) { # WWV info
 928
 929                         # route 'foreign' pc27s
 930                         if ($pcno == 27) {
 931                                 if ($field[8] ne $main::mycall) {
 932                                         $self->route($field[8], $line);
 933                                         return;
 934                                 }
 935                         }
 936
 937                         return if $rspfcheck and !$self->rspfcheck(1, $field[8], $field[7]);
 938
 939                         # do some de-duping
 940                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 941                         my $sfi = unpad($field[3]);
 942                         my $k = unpad($field[4]);
 943                         my $i = unpad($field[5]);
 944                         my ($r) = $field[6] =~ /R=(\d+)/;
 945                         $r = 0 unless $r;
 946                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 947                                 dbg("PCPROT: WWV Date ($field[1] $field[2]) out of range") if isdbg('chanerr');
 948                                 return;
 949                         }
 950                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 951                                 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
 952                                 return;
 953                         }
 954                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 955
 956                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 957
 958                         my $rep;
 959                         eval {
 960                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 961                         };
 962 #                       dbg("Local::wwv2 error $@") if isdbg('local') if $@;
 963                         return if $rep;
 964
 965                         # DON'T be silly and send on PC27s!
 966                         return if $pcno == 27;
 967
 968                         # broadcast to the eager world
 969                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 970                         return;
 971                 }
 972
 973                 if ($pcno == 24) {              # set here status
 974                         my $call = uc $field[1];
 975                         my ($nref, $uref);
 976                         $nref = Route::Node::get($call);
 977                         $uref = Route::User::get($call);
 978                         return unless $nref || $uref;   # if we don't know where they are, it's pointless sending it on
 979
 980                         unless (eph_dup($line)) {
 981                                 $nref->here($field[2]) if $nref;
 982                                 $uref->here($field[2]) if $uref;
 983                                 my $ref = $nref || $uref;
 984                                 return unless $self->in_filter_route($ref);
 985                                 $self->route_pc24($ref, $field[3]);
 986                         }
 987                         return;
 988                 }
 989
 990                 if ($pcno == 25) {      # merge request
 991                         if ($field[1] ne $main::mycall) {
 992                                 $self->route($field[1], $line);
 993                                 return;
 994                         }
 995                         if ($field[2] eq $main::mycall) {
 996                                 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
 997                                 return;
 998                         }
 999
1000                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[2]");
1001
1002                         # spots
1003                         if ($field[3] > 0) {
1004                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
1005                                 my $in;
1006                                 foreach $in (@in) {
1007                                         $self->send(pc26(@{$in}[0..4], $field[2]));
1008                                 }
1009                         }
1010
1011                         # wwv
1012                         if ($field[4] > 0) {
1013                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
1014                                 my $in;
1015                                 foreach $in (@in) {
1016                                         $self->send(pc27(@{$in}[0..5], $field[2]));
1017                                 }
1018                         }
1019                         return;
1020                 }
1021
1022                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
1023                         return if $pcno == 49 && eph_dup($line);
1024                         if ($pcno == 49 || $field[1] eq $main::mycall) {
1025                                 DXMsg::process($self, $line);
1026                         } else {
1027                                 $self->route($field[1], $line) unless $self->is_clx;
1028                         }
1029                         return;
1030                 }
1031
1032                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
1033                         if (eph_dup($line, $eph_pc34_restime)) {
1034                                 dbg("PCPROT: dupe") if isdbg('chanerr');
1035                         } else {
1036                                 $self->process_rcmd($field[1], $field[2], $field[2], $field[3]);
1037                         }
1038                         return;
1039                 }
1040
1041                 if ($pcno == 35) {              # remote command replies
1042                         eph_del_regex("^PC35\\^$field[2]\\^$field[1]\\^");
1043                         $self->process_rcmd_reply($field[1], $field[2], $field[1], $field[3]);
1044                         return;
1045                 }
1046
1047                 # for pc 37 see 44 onwards
1048
1049                 if ($pcno == 38) {              # node connected list from neighbour
1050                         return;
1051                 }
1052
1053                 if ($pcno == 39) {              # incoming disconnect
1054                         if ($field[1] eq $self->{call}) {
1055                                 $self->disconnect(1);
1056                         } else {
1057                                 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1058                         }
1059                         return;
1060                 }
1061
1062                 if ($pcno == 41) {              # user info
1063                         my $call = $field[1];
1064
1065                         if (eph_dup($line, $eph_info_restime)) {
1066                                 dbg("PCPROT: dupe") if isdbg('chanerr');
1067                                 return;
1068                         }
1069
1070                         # input filter if required
1071 #                       my $ref = Route::get($call) || Route->new($call);
1072 #                       return unless $self->in_filter_route($ref);
1073
1074                         if ($field[3] eq $field[2] || $field[3] =~ /^\s*$/) {
1075                                 dbg('PCPROT: invalid value') if isdbg('chanerr');
1076                                 return;
1077                         }
1078
1079                         # add this station to the user database, if required
1080                         my $user = DXUser->get_current($call);
1081                         $user = DXUser->new($call) if !$user;
1082
1083                         if ($field[2] == 1) {
1084                                 $user->name($field[3]);
1085                         } elsif ($field[2] == 2) {
1086                                 $user->qth($field[3]);
1087                         } elsif ($field[2] == 3) {
1088                                 if (is_latlong($field[3])) {
1089                                         my ($lat, $long) = DXBearing::stoll($field[3]);
1090                                         $user->lat($lat);
1091                                         $user->long($long);
1092                                         $user->qra(DXBearing::lltoqra($lat, $long));
1093                                 } else {
1094                                         dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1095                                         return;
1096                                 }
1097                         } elsif ($field[2] == 4) {
1098                                 $user->homenode($field[3]);
1099                         } elsif ($field[2] == 5) {
1100                                 if (is_qra(uc $field[3])) {
1101                                         my ($lat, $long) = DXBearing::qratoll(uc $field[3]);
1102                                         $user->lat($lat);
1103                                         $user->long($long);
1104                                         $user->qra(uc $field[3]);
1105                                 } else {
1106                                         dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1107                                         return;
1108                                 }
1109                         }
1110                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
1111                         $user->put;
1112
1113                         unless ($self->{isolate}) {
1114                                 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1115                         }
1116
1117 #  perhaps this IS what we want after all
1118 #                       $self->route_pc41($ref, $call, $field[2], $field[3], $field[4]);
1119                         return;
1120                 }
1121
1122                 if ($pcno == 43) {
1123                         last SWITCH;
1124                 }
1125
1126                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
1127                         DXDb::process($self, $line);
1128                         return;
1129                 }
1130
1131                 if ($pcno == 50) {              # keep alive/user list
1132                         my $call = $field[1];
1133                         my $node = Route::Node::get($call);
1134                         if ($node) {
1135                                 return unless $node->call eq $self->{call};
1136                                 $node->usercount($field[2]);
1137
1138                                 # input filter if required
1139                                 return unless $self->in_filter_route($node);
1140
1141                                 $self->route_pc50($node, $field[2], $field[3]) unless eph_dup($line);
1142                         }
1143                         return;
1144                 }
1145
1146                 if ($pcno == 51) {              # incoming ping requests/answers
1147                         my $to = $field[1];
1148                         my $from = $field[2];
1149                         my $flag = $field[3];
1150
1151
1152                         # is it for us?
1153                         if ($to eq $main::mycall) {
1154                                 if ($flag == 1) {
1155                                         $self->send(pc51($from, $to, '0'));
1156                                 } else {
1157                                         # it's a reply, look in the ping list for this one
1158                                         my $ref = $pings{$from};
1159                                         if ($ref) {
1160                                                 my $tochan =  DXChannel->get($from);
1161                                                 while (@$ref) {
1162                                                         my $r = shift @$ref;
1163                                                         my $dxchan = DXChannel->get($r->{call});
1164                                                         next unless $dxchan;
1165                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
1166                                                         if ($dxchan->is_user) {
1167                                                                 my $s = sprintf "%.2f", $t;
1168                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
1169                                                                 $dxchan->send($dxchan->msg('pingi', $from, $s, $ave))
1170                                                         } elsif ($dxchan->is_node) {
1171                                                                 if ($tochan) {
1172                                                                         my $nopings = $tochan->user->nopings || 2;
1173                                                                         push @{$tochan->{pingtime}}, $t;
1174                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
1175
1176                                                                         # cope with a missed ping, this means you must set the pingint large enough
1177                                                                         if ($t > $tochan->{pingint}  && $t < 2 * $tochan->{pingint} ) {
1178                                                                                 $t -= $tochan->{pingint};
1179                                                                         }
1180
1181                                                                         # calc smoothed RTT a la TCP
1182                                                                         if (@{$tochan->{pingtime}} == 1) {
1183                                                                                 $tochan->{pingave} = $t;
1184                                                                         } else {
1185                                                                                 $tochan->{pingave} = $tochan->{pingave} + (($t - $tochan->{pingave}) / 6);
1186                                                                         }
1187                                                                         $tochan->{nopings} = $nopings; # pump up the timer
1188                                                                 }
1189                                                         }
1190                                                 }
1191                                         }
1192                                 }
1193                         } else {
1194                                 if (eph_dup($line)) {
1195                                         dbg("PCPROT: dup PC51 detected") if isdbg('chanerr');
1196                                         return;
1197                                 }
1198                                 # route down an appropriate thingy
1199                                 $self->route($to, $line);
1200                         }
1201                         return;
1202                 }
1203
1204                 if ($pcno == 75) {              # dunno but route it
1205                         my $call = $field[1];
1206                         if ($call ne $main::mycall) {
1207                                 $self->route($call, $line);
1208                         }
1209                         return;
1210                 }
1211
1212                 if ($pcno == 73) {  # WCY broadcasts
1213                         my $call = $field[1];
1214
1215                         # do some de-duping
1216                         my $d = cltounix($call, sprintf("%02d18Z", $field[2]));
1217                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
1218                                 dbg("PCPROT: WCY Date ($call $field[2]) out of range") if isdbg('chanerr');
1219                                 return;
1220                         }
1221                         @field = map { unpad($_) } @field;
1222                         if (WCY::dup($d)) {
1223                                 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1224                                 return;
1225                         }
1226
1227                         my $wcy = WCY::update($d, @field[2..12]);
1228
1229                         my $rep;
1230                         eval {
1231                                 $rep = Local::wcy($self, @field[1..12]);
1232                         };
1233                         # dbg("Local::wcy error $@") if isdbg('local') if $@;
1234                         return if $rep;
1235
1236                         # broadcast to the eager world
1237                         send_wcy_spot($self, $line, $d, @field[2..12]);
1238                         return;
1239                 }
1240
1241                 if ($pcno == 84) { # remote commands (incoming)
1242                         $self->process_rcmd($field[1], $field[2], $field[3], $field[4]);
1243                         return;
1244                 }
1245
1246                 if ($pcno == 85) {              # remote command replies
1247                         $self->process_rcmd_reply($field[1], $field[2], $field[3], $field[4]);
1248
1249                         return;
1250                 }
1251                 if ($pcno == 90) {              # new style PC16,17,19,21
1252                         return;
1253                 }
1254         }
1255
1256         # if get here then rebroadcast the thing with its Hop count decremented (if
1257         # there is one). If it has a hop count and it decrements to zero then don't
1258         # rebroadcast it.
1259         #
1260         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1261         #        REBROADCAST!!!!
1262         #
1263
1264         if (eph_dup($line)) {
1265                 dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr');
1266         } else {
1267                 unless ($self->{isolate}) {
1268                         DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1269                 }
1270         }
1271 }
1272
1273 #
1274 # This is called from inside the main cluster processing loop and is used
1275 # for despatching commands that are doing some long processing job
1276 #
1277 sub process
1278 {
1279         my $t = time;
1280         my @dxchan = DXChannel->get_all();
1281         my $dxchan;
1282         my $pc50s;
1283
1284         # send out a pc50 on EVERY channel all at once
1285         if ($t >= $last_pc50 + $DXProt::pc50_interval) {
1286                 $pc50s = pc50($main::me, scalar DXChannel::get_all_users);
1287                 eph_dup($pc50s);
1288                 $last_pc50 = $t;
1289         }
1290
1291         foreach $dxchan (@dxchan) {
1292                 next unless $dxchan->is_node();
1293                 next if $dxchan == $main::me;
1294
1295                 # send the pc50 or PC90
1296                 $dxchan->send($pc50s) if $pc50s;
1297
1298                 # send a ping out on this channel
1299                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1300                         if ($dxchan->{nopings} <= 0) {
1301                                 $dxchan->disconnect;
1302                         } else {
1303                                 addping($main::mycall, $dxchan->call);
1304                                 $dxchan->{nopings} -= 1;
1305                                 $dxchan->{lastping} = $t;
1306                         }
1307                 }
1308         }
1309
1310         # every ten seconds
1311         if ($t - $last10 >= 10) {
1312                 # clean out ephemera
1313
1314                 eph_clean();
1315
1316                 $last10 = $t;
1317         }
1318
1319         if ($main::systime - 3600 > $last_hour) {
1320                 $last_hour = $main::systime;
1321         }
1322 }
1323
1324 #
1325 # finish up a pc context
1326 #
1327
1328 #
1329 # some active measures
1330 #
1331
1332
1333 sub send_dx_spot
1334 {
1335         my $self = shift;
1336         my $line = shift;
1337         my @dxchan = DXChannel->get_all();
1338         my $dxchan;
1339
1340         # send it if it isn't the except list and isn't isolated and still has a hop count
1341         # taking into account filtering and so on
1342         foreach $dxchan (@dxchan) {
1343                 next if $dxchan == $main::me;
1344                 next if $dxchan == $self && $self->is_node;
1345                 $dxchan->dx_spot($line, $self->{isolate}, @_, $self->{call});
1346         }
1347 }
1348
1349 sub dx_spot
1350 {
1351         my $self = shift;
1352         my $line = shift;
1353         my $isolate = shift;
1354         my ($filter, $hops);
1355
1356         if ($self->{spotsfilter}) {
1357                 ($filter, $hops) = $self->{spotsfilter}->it(@_);
1358                 return unless $filter;
1359         }
1360         send_prot_line($self, $filter, $hops, $isolate, $line);
1361 }
1362
1363 sub send_prot_line
1364 {
1365         my ($self, $filter, $hops, $isolate, $line) = @_;
1366         my $routeit;
1367
1368         if ($hops) {
1369                 $routeit = $line;
1370                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1371         } else {
1372                 $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
1373                 return unless $routeit;
1374         }
1375         if ($filter) {
1376                 $self->send($routeit);
1377         } else {
1378                 $self->send($routeit) unless $self->{isolate} || $isolate;
1379         }
1380 }
1381
1382
1383 sub send_wwv_spot
1384 {
1385         my $self = shift;
1386         my $line = shift;
1387         my @dxchan = DXChannel->get_all();
1388         my $dxchan;
1389         my ($wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1390         my @dxcc = Prefix::extract($_[6]);
1391         if (@dxcc > 0) {
1392                 $wwv_dxcc = $dxcc[1]->dxcc;
1393                 $wwv_itu = $dxcc[1]->itu;
1394                 $wwv_cq = $dxcc[1]->cq;
1395         }
1396         @dxcc = Prefix::extract($_[7]);
1397         if (@dxcc > 0) {
1398                 $org_dxcc = $dxcc[1]->dxcc;
1399                 $org_itu = $dxcc[1]->itu;
1400                 $org_cq = $dxcc[1]->cq;
1401         }
1402
1403         # send it if it isn't the except list and isn't isolated and still has a hop count
1404         # taking into account filtering and so on
1405         foreach $dxchan (@dxchan) {
1406                 next if $dxchan == $main::me;
1407                 next if $dxchan == $self && $self->is_node;
1408                 my $routeit;
1409                 my ($filter, $hops);
1410
1411                 $dxchan->wwv($line, $self->{isolate}, @_, $self->{call}, $wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq);
1412         }
1413
1414 }
1415
1416 sub wwv
1417 {
1418         my $self = shift;
1419         my $line = shift;
1420         my $isolate = shift;
1421         my ($filter, $hops);
1422
1423         if ($self->{wwvfilter}) {
1424                 ($filter, $hops) = $self->{wwvfilter}->it(@_);
1425                 return unless $filter;
1426         }
1427         send_prot_line($self, $filter, $hops, $isolate, $line)
1428 }
1429
1430 sub send_wcy_spot
1431 {
1432         my $self = shift;
1433         my $line = shift;
1434         my @dxchan = DXChannel->get_all();
1435         my $dxchan;
1436         my ($wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1437         my @dxcc = Prefix::extract($_[10]);
1438         if (@dxcc > 0) {
1439                 $wcy_dxcc = $dxcc[1]->dxcc;
1440                 $wcy_itu = $dxcc[1]->itu;
1441                 $wcy_cq = $dxcc[1]->cq;
1442         }
1443         @dxcc = Prefix::extract($_[11]);
1444         if (@dxcc > 0) {
1445                 $org_dxcc = $dxcc[1]->dxcc;
1446                 $org_itu = $dxcc[1]->itu;
1447                 $org_cq = $dxcc[1]->cq;
1448         }
1449
1450         # send it if it isn't the except list and isn't isolated and still has a hop count
1451         # taking into account filtering and so on
1452         foreach $dxchan (@dxchan) {
1453                 next if $dxchan == $main::me;
1454                 next if $dxchan == $self;
1455
1456                 $dxchan->wcy($line, $self->{isolate}, @_, $self->{call}, $wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq);
1457         }
1458 }
1459
1460 sub wcy
1461 {
1462         my $self = shift;
1463         my $line = shift;
1464         my $isolate = shift;
1465         my ($filter, $hops);
1466
1467         if ($self->{wcyfilter}) {
1468                 ($filter, $hops) = $self->{wcyfilter}->it(@_);
1469                 return unless $filter;
1470         }
1471         send_prot_line($self, $filter, $hops, $isolate, $line) if $self->is_clx || $self->is_spider || $self->is_dxnet;
1472 }
1473
1474 # send an announce
1475 sub send_announce
1476 {
1477         my $self = shift;
1478         my $line = shift;
1479         my @dxchan = DXChannel->get_all();
1480         my $dxchan;
1481         my $target;
1482         my $to = 'To ';
1483         my $text = unpad($_[2]);
1484
1485         if ($_[3] eq '*') {     # sysops
1486                 $target = "SYSOP";
1487         } elsif ($_[3] gt ' ') { # speciality list handling
1488                 my ($name) = split /\./, $_[3];
1489                 $target = "$name"; # put the rest in later (if bothered)
1490         }
1491
1492         if ($_[5] eq '1') {
1493                 $target = "WX";
1494                 $to = '';
1495         }
1496         $target = "ALL" if !$target;
1497
1498
1499         # obtain country codes etc
1500         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1501         my @dxcc = Prefix::extract($_[0]);
1502         if (@dxcc > 0) {
1503                 $ann_dxcc = $dxcc[1]->dxcc;
1504                 $ann_itu = $dxcc[1]->itu;
1505                 $ann_cq = $dxcc[1]->cq;
1506         }
1507         @dxcc = Prefix::extract($_[4]);
1508         if (@dxcc > 0) {
1509                 $org_dxcc = $dxcc[1]->dxcc;
1510                 $org_itu = $dxcc[1]->itu;
1511                 $org_cq = $dxcc[1]->cq;
1512         }
1513
1514         if ($self->{inannfilter}) {
1515                 my ($filter, $hops) =
1516                         $self->{inannfilter}->it(@_, $self->{call},
1517                                                                          $ann_dxcc, $ann_itu, $ann_cq,
1518                                                                          $org_dxcc, $org_itu, $org_cq);
1519                 unless ($filter) {
1520                         dbg("PCPROT: Rejected by input announce filter") if isdbg('chanerr');
1521                         return;
1522                 }
1523         }
1524
1525         if (AnnTalk::dup($_[0], $_[1], $_[2])) {
1526                 dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');
1527                 return;
1528         }
1529
1530         Log('ann', $target, $_[0], $text);
1531
1532         # send it if it isn't the except list and isn't isolated and still has a hop count
1533         # taking into account filtering and so on
1534         foreach $dxchan (@dxchan) {
1535                 next if $dxchan == $main::me;
1536                 next if $dxchan == $self && $self->is_node;
1537                 $dxchan->announce($line, $self->{isolate}, $to, $target, $text, @_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1538         }
1539 }
1540
1541 sub announce
1542 {
1543         my $self = shift;
1544         my $line = shift;
1545         my $isolate = shift;
1546         my $to = shift;
1547         my $target = shift;
1548         my $text = shift;
1549         my ($filter, $hops);
1550
1551         if ($self->{annfilter}) {
1552                 ($filter, $hops) = $self->{annfilter}->it(@_);
1553                 return unless $filter;
1554         }
1555         send_prot_line($self, $filter, $hops, $isolate, $line) unless $_[1] eq $main::mycall;
1556 }
1557
1558
1559 sub send_local_config
1560 {
1561         my $self = shift;
1562         my $n;
1563         my @nodes;
1564         my @localnodes;
1565         my @remotenodes;
1566
1567         dbg('DXProt::send_local_config') if isdbg('trace');
1568
1569         # send our nodes
1570         if ($self->{isolate}) {
1571                 @localnodes = ( $main::routeroot );
1572         } else {
1573                 # create a list of all the nodes that are not connected to this connection
1574                 # and are not themselves isolated, this to make sure that isolated nodes
1575         # don't appear outside of this node
1576                 my @dxchan = grep { $_->call ne $main::mycall && $_ != $self && !$_->{isolate} } DXChannel::get_all_nodes();
1577                 @localnodes = map { my $r = Route::Node::get($_->{call}); $r ? $r : () } @dxchan if @dxchan;
1578                 my @intcalls = map { $_->nodes } @localnodes if @localnodes;
1579                 my $ref = Route::Node::get($self->{call});
1580                 my @rnodes = $ref->nodes;
1581                 for my $n (@intcalls) {
1582                         push @remotenodes, Route::Node::get($n) unless grep $n eq $_, @rnodes;
1583                 }
1584                 unshift @localnodes, $main::routeroot;
1585         }
1586
1587
1588         send_route($self, \&pc19, scalar(@localnodes)+scalar(@remotenodes), @localnodes, @remotenodes);
1589
1590         # get all the users connected on the above nodes and send them out
1591         foreach $n (@localnodes, @remotenodes) {
1592                 if ($n) {
1593                         send_route($self, \&pc16, 1, $n, map {my $r = Route::User::get($_); $r ? ($r) : ()} $n->users);
1594                 } else {
1595                         dbg("sent a null value") if isdbg('chanerr');
1596                 }
1597         }
1598 }
1599
1600 #
1601 # route a message down an appropriate interface for a callsign
1602 #
1603 # is called route(to, pcline);
1604 #
1605 sub route
1606 {
1607         my ($self, $call, $line) = @_;
1608
1609         if (ref $self && $call eq $self->{call}) {
1610                 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
1611                 return;
1612         }
1613
1614         # always send it down the local interface if available
1615         my $dxchan = DXChannel->get($call);
1616         unless ($dxchan) {
1617                 my $cl = Route::get($call);
1618                 $dxchan = $cl->dxchan if $cl;
1619                 if (ref $dxchan) {
1620                         if (ref $self && $dxchan eq $self) {
1621                                 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
1622                                 return;
1623                         }
1624                 }
1625         }
1626         if ($dxchan) {
1627                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1628                 if ($routeit) {
1629                         $dxchan->send($routeit) unless $dxchan == $main::me;
1630                 }
1631         } else {
1632                 dbg("PCPROT: No route available, dropped") if isdbg('chanerr');
1633         }
1634 }
1635
1636 #
1637 # obtain the hops from the list for this callsign and pc no
1638 #
1639
1640 sub get_hops
1641 {
1642         my $pcno = shift;
1643         my $hops = $DXProt::hopcount{$pcno};
1644         $hops = $DXProt::def_hopcount if !$hops;
1645         return "H$hops";
1646 }
1647
1648 #
1649 # adjust the hop count on a per node basis using the user loadable
1650 # hop table if available or else decrement an existing one
1651 #
1652
1653 sub adjust_hops
1654 {
1655         my $self = shift;
1656         my $s = shift;
1657         my $call = $self->{call};
1658         my $hops;
1659
1660         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1661                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1662                 confess "$call called adjust_hops with '$s'" unless $pcno;
1663                 my $ref = $nodehops{$call} if %nodehops;
1664                 if ($ref) {
1665                         my $newhops = $ref->{$pcno};
1666                         return "" if defined $newhops && $newhops == 0;
1667                         $newhops = $ref->{default} unless $newhops;
1668                         return "" if defined $newhops && $newhops == 0;
1669                         $newhops = $hops if !$newhops;
1670                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1671                 } else {
1672                         # simply decrement it
1673                         $hops--;
1674                         return "" if !$hops;
1675                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1676                 }
1677         }
1678         return $s;
1679 }
1680
1681 #
1682 # load hop tables
1683 #
1684 sub load_hops
1685 {
1686         my $self = shift;
1687         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1688         do "$main::data/hop_table.pl";
1689         return $@ if $@;
1690         return 0;
1691 }
1692
1693
1694 # add a ping request to the ping queues
1695 sub addping
1696 {
1697         my ($from, $to) = @_;
1698         my $ref = $pings{$to} || [];
1699         my $r = {};
1700         $r->{call} = $from;
1701         $r->{t} = [ gettimeofday ];
1702         route(undef, $to, pc51($to, $main::mycall, 1));
1703         push @$ref, $r;
1704         $pings{$to} = $ref;
1705 }
1706
1707 sub process_rcmd
1708 {
1709         my ($self, $tonode, $fromnode, $user, $cmd) = @_;
1710         if ($tonode eq $main::mycall) {
1711                 my $ref = DXUser->get_current($fromnode);
1712                 my $cref = Route::Node::get($fromnode);
1713                 Log('rcmd', 'in', $ref->{priv}, $fromnode, $cmd);
1714                 if ($cmd !~ /^\s*rcmd/i && $cref && $ref && $cref->call eq $ref->homenode) { # not allowed to relay RCMDS!
1715                         if ($ref->{priv}) {             # you have to have SOME privilege, the commands have further filtering
1716                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1717                                 my $oldpriv = $self->{priv};
1718                                 $self->{priv} = $ref->{priv}; # assume the user's privilege level
1719                                 my @in = (DXCommandmode::run_cmd($self, $cmd));
1720                                 $self->{priv} = $oldpriv;
1721                                 $self->send_rcmd_reply($main::mycall, $fromnode, $user, @in);
1722                                 delete $self->{remotecmd};
1723                         } else {
1724                                 $self->send_rcmd_reply($main::mycall, $fromnode, $user, "sorry...!");
1725                         }
1726                 } else {
1727                         $self->send_rcmd_reply($main::mycall, $fromnode, $user, "your attempt is logged, Tut tut tut...!");
1728                 }
1729         } else {
1730                 my $ref = DXUser->get_current($tonode);
1731                 if ($ref && $ref->is_clx) {
1732                         $self->route($tonode, pc84($fromnode, $tonode, $user, $cmd));
1733                 } else {
1734                         $self->route($tonode, pc34($fromnode, $tonode, $cmd));
1735                 }
1736         }
1737 }
1738
1739 sub process_rcmd_reply
1740 {
1741         my ($self, $tonode, $fromnode, $user, $line) = @_;
1742         if ($tonode eq $main::mycall) {
1743                 my $s = $rcmds{$fromnode};
1744                 if ($s) {
1745                         my $dxchan = DXChannel->get($s->{call});
1746                         my $ref = $user eq $tonode ? $dxchan : (DXChannel->get($user) || $dxchan);
1747                         $ref->send($line) if $ref;
1748                         delete $rcmds{$fromnode} if !$dxchan;
1749                 } else {
1750                         # send unsolicited ones to the sysop
1751                         my $dxchan = DXChannel->get($main::myalias);
1752                         $dxchan->send($line) if $dxchan;
1753                 }
1754         } else {
1755                 my $ref = DXUser->get_current($tonode);
1756                 if ($ref && $ref->is_clx) {
1757                         $self->route($tonode, pc85($fromnode, $tonode, $user, $line));
1758                 } else {
1759                         $self->route($tonode, pc35($fromnode, $tonode, $line));
1760                 }
1761         }
1762 }
1763
1764 sub send_rcmd_reply
1765 {
1766         my $self = shift;
1767         my $tonode = shift;
1768         my $fromnode = shift;
1769         my $user = shift;
1770         while (@_) {
1771                 my $line = shift;
1772                 $line =~ s/\s*$//;
1773                 Log('rcmd', 'out', $fromnode, $line);
1774                 if ($self->is_clx) {
1775                         $self->send(pc85($main::mycall, $fromnode, $user, "$main::mycall:$line"));
1776                 } else {
1777                         $self->send(pc35($main::mycall, $fromnode, "$main::mycall:$line"));
1778                 }
1779         }
1780 }
1781
1782 # add a rcmd request to the rcmd queues
1783 sub addrcmd
1784 {
1785         my ($self, $to, $cmd) = @_;
1786
1787         my $r = {};
1788         $r->{call} = $self->{call};
1789         $r->{t} = $main::systime;
1790         $r->{cmd} = $cmd;
1791         $rcmds{$to} = $r;
1792
1793         my $ref = Route::Node::get($to);
1794         my $dxchan = $ref->dxchan;
1795         if ($dxchan && $dxchan->is_clx) {
1796                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1797         } else {
1798                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1799         }
1800 }
1801
1802 sub disconnect
1803 {
1804         my $self = shift;
1805         my $pc39flag = shift;
1806         my $call = $self->call;
1807
1808         return if $self->{disconnecting}++;
1809
1810         unless ($pc39flag && $pc39flag == 1) {
1811                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1812         }
1813
1814         # get rid of any PC16 and 19s
1815         eph_del_regex("^PC16\\^$call");
1816         eph_del_regex("^PC19\\^.*$call");
1817
1818         # do routing stuff
1819         my $node = Route::Node::get($call);
1820         my @rout;
1821         if ($node) {
1822                 @rout = $node->del($main::routeroot);
1823         }
1824
1825         # unbusy and stop and outgoing mail
1826         my $mref = DXMsg::get_busy($call);
1827         $mref->stop_msg($call) if $mref;
1828
1829         # broadcast to all other nodes that all the nodes connected to via me are gone
1830         unless ($pc39flag && $pc39flag == 2) {
1831                 $self->route_pc21(@rout) if @rout;
1832         }
1833
1834         # remove outstanding pings
1835         delete $pings{$call};
1836
1837         # I was the last node visited
1838     $self->user->node($main::mycall);
1839
1840         # send info to all logged in thingies
1841         $self->tell_login('logoutn');
1842
1843         Log('DXProt', $call . " Disconnected");
1844
1845         $self->SUPER::disconnect;
1846 }
1847
1848
1849 #
1850 # send a talk message to this thingy
1851 #
1852 sub talk
1853 {
1854         my ($self, $from, $to, $via, $line, $origin) = @_;
1855
1856         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1857         $self->send(DXProt::pc10($from, $to, $via, $line, $origin));
1858         Log('talk', $to, $from, $via?$via:$self->call, $line) unless $origin && $origin ne $main::mycall;
1859 }
1860
1861 # send it if it isn't the except list and isn't isolated and still has a hop count
1862 # taking into account filtering and so on
1863 sub send_route
1864 {
1865         my $self = shift;
1866         my $generate = shift;
1867         my $no = shift;     # the no of things to filter on
1868         my $routeit;
1869         my ($filter, $hops);
1870         my @rin;
1871
1872         for (; @_ && $no; $no--) {
1873                 my $r = shift;
1874
1875                 if (!$self->{isolate} && $self->{routefilter}) {
1876                         $filter = undef;
1877                         if ($r) {
1878                                 ($filter, $hops) = $self->{routefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq);
1879                                 if ($filter) {
1880                                         push @rin, $r;
1881                                 } else {
1882                                         dbg("DXPROT: $self->{call}/" . $r->call . " rejected by output filter") if isdbg('chanerr');
1883                                 }
1884                         } else {
1885                                 dbg("was sent a null value") if isdbg('chanerr');
1886                         }
1887                 } else {
1888                         push @rin, $r unless $self->{isolate} && $r->call ne $main::mycall;
1889                 }
1890         }
1891         if (@rin) {
1892                 foreach my $line (&$generate(@rin, @_)) {
1893                         if ($hops) {
1894                                 $routeit = $line;
1895                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1896                         } else {
1897                                 $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
1898                                 next unless $routeit;
1899                         }
1900                         $self->send($routeit);
1901                 }
1902         }
1903 }
1904
1905 sub broadcast_route
1906 {
1907         my $self = shift;
1908         my $generate = shift;
1909         my @dxchan = DXChannel::get_all_nodes();
1910         my $dxchan;
1911         my $line;
1912
1913         unless ($self->{isolate}) {
1914                 foreach $dxchan (@dxchan) {
1915                         next if $dxchan == $self;
1916                         next if $dxchan == $main::me;
1917                         $dxchan->send_route($generate, @_);
1918                 }
1919         }
1920 }
1921
1922 sub route_pc16
1923 {
1924         my $self = shift;
1925         broadcast_route($self, \&pc16, 1, @_);
1926 }
1927
1928 sub route_pc17
1929 {
1930         my $self = shift;
1931         broadcast_route($self, \&pc17, 1, @_);
1932 }
1933
1934 sub route_pc19
1935 {
1936         my $self = shift;
1937         broadcast_route($self, \&pc19, scalar @_, @_);
1938 }
1939
1940 sub route_pc21
1941 {
1942         my $self = shift;
1943         broadcast_route($self, \&pc21, scalar @_, @_);
1944 }
1945
1946 sub route_pc24
1947 {
1948         my $self = shift;
1949         broadcast_route($self, \&pc24, 1, @_);
1950 }
1951
1952 sub route_pc41
1953 {
1954         my $self = shift;
1955         broadcast_route($self, \&pc41, 1, @_);
1956 }
1957
1958 sub route_pc50
1959 {
1960         my $self = shift;
1961         broadcast_route($self, \&pc50, 1, @_);
1962 }
1963
1964 sub route_pc90
1965 {
1966         my $self = shift;
1967         broadcast_route($self, \&pc90, 1, @_);
1968 }
1969
1970 sub in_filter_route
1971 {
1972         my $self = shift;
1973         my $r = shift;
1974         my ($filter, $hops) = (1, 1);
1975
1976         if ($self->{inroutefilter}) {
1977                 ($filter, $hops) = $self->{inroutefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq);
1978                 dbg("PCPROT: $self->{call}/" . $r->call . ' rejected by in_filter_route') if !$filter && isdbg('chanerr');
1979         }
1980         return $filter;
1981 }
1982
1983 sub eph_dup
1984 {
1985         my $s = shift;
1986         my $t = shift || $eph_restime;
1987         my $r;
1988
1989         # chop the end off
1990         $s =~ s/\^H\d\d?\^?\~?$//;
1991         $r = 1 if exists $eph{$s};    # pump up the dup if it keeps circulating
1992         $eph{$s} = $main::systime + $t;
1993         return $r;
1994 }
1995
1996 sub eph_del_regex
1997 {
1998         my $regex = shift;
1999         my ($key, $val);
2000         while (($key, $val) = each %eph) {
2001                 if ($key =~ m{$regex}) {
2002                         delete $eph{$key};
2003                 }
2004         }
2005 }
2006
2007 sub eph_clean
2008 {
2009         my ($key, $val);
2010
2011         while (($key, $val) = each %eph) {
2012                 if ($main::systime >= $val) {
2013                         delete $eph{$key};
2014                 }
2015         }
2016 }
2017
2018 sub eph_list
2019 {
2020         my ($key, $val);
2021         my @out;
2022
2023         while (($key, $val) = each %eph) {
2024                 push @out, $key, $val;
2025         }
2026         return @out;
2027 }
2028
2029 sub run_cmd
2030 {
2031         goto &DXCommandmode::run_cmd;
2032 }
2033 1;
2034 __END__