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+)/  || (0,0));
  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                         $pingint $obscount
  48                         %nodehops $baddx $badspotter $badnode $censorpc $rspfcheck
  49                         $allowzero $decode_dk0wcy $send_opernam @checklist);
  50
  51 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  52 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  53
  54 $last_hour = time;                              # last time I did an hourly periodic update
  55 %pings = ();                    # outstanding ping requests outbound
  56 %rcmds = ();                    # outstanding rcmd requests outbound
  57 %nodehops = ();                 # node specific hop control
  58 $censorpc = 1;                                  # Do a BadWords::check on text fields and reject things
  59                                                                 # loads of 'bad things'
  60 $baddx = new DXHash "baddx";
  61 $badspotter = new DXHash "badspotter";
  62 $badnode = new DXHash "badnode";
  63 $last10 = $last_pc50 = time;
  64 $ann_to_talk = 1;
  65 $rspfcheck = 1;
  66 $eph_restime = 180;
  67 $eph_info_restime = 60*60;
  68 $eph_pc34_restime = 30;
  69 $pingint = 5*60;
  70 $obscount = 2;
  71
  72 @checklist =
  73 (
  74  [ qw(c c m bp bc c) ],                 # pc10
  75  [ qw(f m d t m c c h) ],               # pc11
  76  [ qw(c bc m bp bm p h) ],              # pc12
  77  [ qw(c h) ],                                   #
  78  [ qw(c h) ],                                   #
  79  [ qw(c m h) ],                                 #
  80  undef ,                                                # pc16 has to be validated manually
  81  [ qw(c c h) ],                                 # pc17
  82  [ qw(m n) ],                                   # pc18
  83  undef ,                                                # pc19 has to be validated manually
  84  undef ,                                                # pc20 no validation
  85  [ qw(c m h) ],                                 # pc21
  86  undef ,                                                # pc22 no validation
  87  [ qw(d n n n n m c c h) ],             # pc23
  88  [ qw(c p h) ],                                 # pc24
  89  [ qw(c c n n) ],                               # pc25
  90  [ qw(f m d t m c c bc) ],              # pc26
  91  [ qw(d n n n n m c c bc) ],    # pc27
  92  [ qw(c c m c d t p m bp n p bp bc) ], # pc28
  93  [ qw(c c n m) ],                               # pc29
  94  [ qw(c c n) ],                                 # pc30
  95  [ qw(c c n) ],                                 # pc31
  96  [ qw(c c n) ],                                 # pc32
  97  [ qw(c c n) ],                                 # pc33
  98  [ qw(c c m) ],                                 # pc34
  99  [ qw(c c m) ],                                 # pc35
 100  [ qw(c c m) ],                                 # pc36
 101  [ qw(c c n m) ],                               # pc37
 102  undef,                                                 # pc38 not interested
 103  [ qw(c m) ],                                   # pc39
 104  [ qw(c c m p n) ],                             # pc40
 105  [ qw(c n m h) ],                               # pc41
 106  [ qw(c c n) ],                                 # pc42
 107  undef,                                                 # pc43 don't handle it
 108  [ qw(c c n m m c) ],                   # pc44
 109  [ qw(c c n m) ],                               # pc45
 110  [ qw(c c n) ],                                 # pc46
 111  undef,                                                 # pc47
 112  undef,                                                 # pc48
 113  [ qw(c m h) ],                                 # pc49
 114  [ qw(c n h) ],                                 # pc50
 115  [ qw(c c n) ],                                 # pc51
 116  undef,
 117  undef,
 118  undef,
 119  undef,
 120  undef,
 121  undef,
 122  undef,
 123  undef,
 124  undef,                                                 # pc60
 125  undef,
 126  undef,
 127  undef,
 128  undef,
 129  undef,
 130  undef,
 131  undef,
 132  undef,
 133  undef,
 134  undef,                                                 # pc70
 135  undef,
 136  undef,
 137  [ qw(d n n n n n n m m m c c h) ],     # pc73
 138  undef,
 139  undef,
 140  undef,
 141  undef,
 142  undef,
 143  undef,
 144  undef,                                                 # pc80
 145  undef,
 146  undef,
 147  undef,
 148  [ qw(c c c m) ],                               # pc84
 149  [ qw(c c c m) ],                               # pc85
 150 );
 151
 152 # use the entry in the check list to check the field list presented
 153 # return OK if line NOT in check list (for now)
 154 sub check
 155 {
 156         my $n = shift;
 157         $n -= 10;
 158         return 0 if $n < 0 || $n > @checklist;
 159         my $ref = $checklist[$n];
 160         return 0 unless ref $ref;
 161
 162         my $i;
 163         shift;    # not interested in the first field
 164         for ($i = 0; $i < @$ref; $i++) {
 165                 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
 166                 return 0 unless $act;
 167                 next if $blank && $_[$i] =~ /^[ \*]$/;
 168                 if ($act eq 'c') {
 169                         return $i+1 unless is_callsign($_[$i]);
 170                 } elsif ($act eq 'm') {
 171                         return $i+1 unless is_pctext($_[$i]);
 172                 } elsif ($act eq 'p') {
 173                         return $i+1 unless is_pcflag($_[$i]);
 174                 } elsif ($act eq 'f') {
 175                         return $i+1 unless is_freq($_[$i]);
 176                 } elsif ($act eq 'n') {
 177                         return $i+1 unless $_[$i] =~ /^[\d ]+$/;
 178                 } elsif ($act eq 'h') {
 179                         return $i+1 unless $_[$i] =~ /^H\d\d?$/;
 180                 } elsif ($act eq 'd') {
 181                         return $i+1 unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
 182                 } elsif ($act eq 't') {
 183                         return $i+1 unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
 184                 }
 185         }
 186         return 0;
 187 }
 188
 189 sub init
 190 {
 191         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
 192         confess $@ if $@;
 193 }
 194
 195 #
 196 # obtain a new connection this is derived from dxchannel
 197 #
 198
 199 sub new
 200 {
 201         my $self = DXChannel::alloc(@_);
 202
 203         # add this node to the table, the values get filled in later
 204         my $pkg = shift;
 205         my $call = shift;
 206         $main::routeroot->add($call, '5000', Route::here(1)) if $call ne $main::mycall;
 207
 208         return $self;
 209 }
 210
 211 # this is how a pc connection starts (for an incoming connection)
 212 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
 213 # all the crap that comes between).
 214 sub start
 215 {
 216         my ($self, $line, $sort) = @_;
 217         my $call = $self->{call};
 218         my $user = $self->{user};
 219
 220         # log it
 221         my $host = $self->{conn}->{peerhost} || "unknown";
 222         Log('DXProt', "$call connected from $host");
 223
 224         # remember type of connection
 225         $self->{consort} = $line;
 226         $self->{outbound} = $sort eq 'O';
 227         my $priv = $user->priv;
 228         $priv = $user->priv(1) unless $priv;
 229         $self->{priv} = $priv;     # other clusters can always be 'normal' users
 230         $self->{lang} = $user->lang || 'en';
 231         $self->{isolate} = $user->{isolate};
 232         $self->{consort} = $line;       # save the connection type
 233         $self->{here} = 1;
 234         $self->{width} = 80;
 235
 236         # sort out registration
 237         $self->{registered} = 1;
 238
 239         # get the output filters
 240         $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
 241         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
 242         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
 243         $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
 244         $self->{routefilter} = Filter::read_in('route', $call, 0) || Filter::read_in('route', 'node_default', 0) unless $self->{isolate} ;
 245
 246
 247         # get the INPUT filters (these only pertain to Clusters)
 248         $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
 249         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
 250         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
 251         $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);
 252         $self->{inroutefilter} = Filter::read_in('route', $call, 1) || Filter::read_in('route', 'node_default', 1) unless $self->{isolate};
 253
 254         # set unbuffered and no echo
 255         $self->send_now('B',"0");
 256         $self->send_now('E',"0");
 257         $self->conn->echo(0) if $self->conn->can('echo');
 258
 259         # ping neighbour node stuff
 260         my $ping = $user->pingint;
 261         $ping = $pingint unless defined $ping;
 262         $self->{pingint} = $ping;
 263         $self->{nopings} = $user->nopings || $obscount;
 264         $self->{pingtime} = [ ];
 265         $self->{pingave} = 999;
 266         $self->{metric} ||= 100;
 267         $self->{lastping} = $main::systime;
 268
 269         # send initialisation string
 270         unless ($self->{outbound}) {
 271                 $self->sendinit;
 272         }
 273
 274         $self->state('init');
 275         $self->{pc50_t} = $main::systime;
 276
 277         # send info to all logged in thingies
 278         $self->tell_login('loginn');
 279
 280         # run a script send the output to the debug file
 281         my $script = new Script(lc $call) || new Script('node_default');
 282         $script->run($self) if $script;
 283 }
 284
 285 #
 286 # send outgoing 'challenge'
 287 #
 288
 289 sub sendinit
 290 {
 291         my $self = shift;
 292         $self->send(pc18());
 293 }
 294
 295 #
 296 # This is the normal pcxx despatcher
 297 #
 298 sub normal
 299 {
 300         my ($self, $line) = @_;
 301         my @field = split /\^/, $line;
 302         return unless @field;
 303
 304         pop @field if $field[-1] eq '~';
 305
 306 #       print join(',', @field), "\n";
 307
 308
 309         # process PC frames, this will fail unless the frame starts PCnn
 310         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 311         return unless $pcno;
 312         return if $pcno < 10 || $pcno > 99;
 313
 314         # check for and dump bad protocol messages
 315         my $n = check($pcno, @field);
 316         if ($n) {
 317                 dbg("PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")") if isdbg('chanerr');
 318                 return;
 319         }
 320
 321         # local processing 1
 322         my $pcr;
 323         eval {
 324                 $pcr = Local::pcprot($self, $pcno, @field);
 325         };
 326 #       dbg("Local::pcprot error $@") if isdbg('local') if $@;
 327         return if $pcr;
 328
 329  SWITCH: {
 330                 if ($pcno == 10) {              # incoming talk
 331
 332                         # rsfp check
 333                         return if $rspfcheck and !$self->rspfcheck(0, $field[6], $field[1]);
 334
 335                         # will we allow it at all?
 336                         if ($censorpc) {
 337                                 my @bad;
 338                                 if (@bad = BadWords::check($field[3])) {
 339                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 340                                         return;
 341                                 }
 342                         }
 343
 344                         # is it for me or one of mine?
 345                         my ($from, $to, $via, $call, $dxchan);
 346                         $from = $field[1];
 347                         if ($field[5] gt ' ') {
 348                                 $via = $field[2];
 349                                 $to = $field[5];
 350                         } else {
 351                                 $to = $field[2];
 352                         }
 353
 354                         # if this is a 'nodx' node then ignore it
 355                         if ($badnode->in($field[6]) || ($via && $badnode->in($via))) {
 356                                 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
 357                                 return;
 358                         }
 359
 360                         # if this is a 'bad spotter' user then ignore it
 361                         my $nossid = $from;
 362                         $nossid =~ s/-\d+$//;
 363                         if ($badspotter->in($nossid)) {
 364                                 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
 365                                 return;
 366                         }
 367
 368                         # if we are converting announces to talk is it a dup?
 369                         if ($ann_to_talk) {
 370                                 if (AnnTalk::is_talk_candidate($from, $field[3]) && AnnTalk::dup($from, $to, $field[3])) {
 371                                         dbg("DXPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
 372                                         return;
 373                                 }
 374                         }
 375
 376                         # it is here and logged on
 377                         $dxchan = DXChannel->get($main::myalias) if $to eq $main::mycall;
 378                         $dxchan = DXChannel->get($to) unless $dxchan;
 379                         if ($dxchan && $dxchan->is_user) {
 380                                 $field[3] =~ s/\%5E/^/g;
 381                                 $dxchan->talk($from, $to, $via, $field[3]);
 382                                 return;
 383                         }
 384
 385                         # is it elsewhere, visible on the cluster via the to address?
 386                         # note: this discards the via unless the to address is on
 387                         # the via address
 388                         my ($ref, $vref);
 389                         if ($ref = Route::get($to)) {
 390                                 $vref = Route::Node::get($via) if $via;
 391                                 $vref = undef unless $vref && grep $to eq $_, $vref->users;
 392                                 $ref->dxchan->talk($from, $to, $vref ? $via : undef, $field[3], $field[6]);
 393                                 return;
 394                         }
 395
 396                         # not visible here, send a message of condolence
 397                         $vref = undef;
 398                         $ref = Route::get($from);
 399                         $vref = $ref = Route::Node::get($field[6]) unless $ref;
 400                         if ($ref) {
 401                                 $dxchan = $ref->dxchan;
 402                                 $dxchan->talk($main::mycall, $from, $vref ? $vref->call : undef, $dxchan->msg('talknh', $to) );
 403                         }
 404                         return;
 405                 }
 406
 407                 if ($pcno == 11 || $pcno == 26) { # dx spot
 408
 409                         # route 'foreign' pc26s
 410                         if ($pcno == 26) {
 411                                 if ($field[7] ne $main::mycall) {
 412                                         $self->route($field[7], $line);
 413                                         return;
 414                                 }
 415                         }
 416
 417                         # rsfp check
 418 #                       return if $rspfcheck and !$self->rspfcheck(1, $field[7], $field[6]);
 419
 420                         # if this is a 'nodx' node then ignore it
 421                         if ($badnode->in($field[7])) {
 422                                 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
 423                                 return;
 424                         }
 425
 426                         # if this is a 'bad spotter' user then ignore it
 427                         my $nossid = $field[6];
 428                         $nossid =~ s/-\d+$//;
 429                         if ($badspotter->in($nossid)) {
 430                                 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
 431                                 return;
 432                         }
 433
 434                         # convert the date to a unix date
 435                         my $d = cltounix($field[3], $field[4]);
 436                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 437                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 438                                 dbg("PCPROT: Spot ignored, invalid date or out of range ($field[3] $field[4])\n") if isdbg('chanerr');
 439                                 return;
 440                         }
 441
 442                         # is it 'baddx'
 443                         if ($baddx->in($field[2]) || BadWords::check($field[2]) || $field[2] =~ /COCK/) {
 444                                 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
 445                                 return;
 446                         }
 447
 448                         # do some de-duping
 449                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 450                         $field[2] = unpad($field[2]);   # take off leading and trailing blanks from spotted callsign
 451                         if ($field[2] =~ /BUST\w*$/) {
 452                                 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
 453                                 return;
 454                         }
 455                         if ($censorpc) {
 456                                 my @bad;
 457                                 if (@bad = BadWords::check($field[5])) {
 458                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 459                                         return;
 460                                 }
 461                         }
 462
 463
 464                         my @spot = Spot::prepare($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 465                         # global spot filtering on INPUT
 466                         if ($self->{inspotsfilter}) {
 467                                 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
 468                                 unless ($filter) {
 469                                         dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
 470                                         return;
 471                                 }
 472                         }
 473
 474                         # this goes after the input filtering, but before the add
 475                         # so that if it is input filtered, it isn't added to the dup
 476                         # list. This allows it to come in from a "legitimate" source
 477                         if (Spot::dup($field[1], $field[2], $d, $field[5], $field[6])) {
 478                                 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
 479                                 return;
 480                         }
 481
 482                         # add it
 483                         Spot::add(@spot);
 484
 485             #
 486                         # @spot at this point contains:-
 487             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 488                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 489                         # you should be able to route on any of these
 490             #
 491
 492                         # fix up qra locators of known users
 493                         my $user = DXUser->get_current($spot[4]);
 494                         if ($user) {
 495                                 my $qra = $user->qra;
 496                                 unless ($qra && is_qra($qra)) {
 497                                         my $lat = $user->lat;
 498                                         my $long = $user->long;
 499                                         if (defined $lat && defined $long) {
 500                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 501                                                 $user->put;
 502                                         }
 503                                 }
 504
 505                                 # send a remote command to a distant cluster if it is visible and there is no
 506                                 # qra locator and we havn't done it for a month.
 507
 508                                 unless ($user->qra) {
 509                                         my $node;
 510                                         my $to = $user->homenode;
 511                                         my $last = $user->lastoper || 0;
 512                                         if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
 513                                                 my $cmd = "forward/opernam $spot[4]";
 514                                                 # send the rcmd but we aren't interested in the replies...
 515                                                 my $dxchan = $node->dxchan;
 516                                                 if ($dxchan && $dxchan->is_clx) {
 517                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 518                                                 } else {
 519                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 520                                                 }
 521                                                 if ($to ne $field[7]) {
 522                                                         $to = $field[7];
 523                                                         $node = Route::Node::get($to);
 524                                                         if ($node) {
 525                                                                 $dxchan = $node->dxchan;
 526                                                                 if ($dxchan && $dxchan->is_clx) {
 527                                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 528                                                                 } else {
 529                                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 530                                                                 }
 531                                                         }
 532                                                 }
 533                                                 $user->lastoper($main::systime);
 534                                                 $user->put;
 535                                         }
 536                                 }
 537                         }
 538
 539                         # local processing
 540                         my $r;
 541                         eval {
 542                                 $r = Local::spot($self, @spot);
 543                         };
 544 #                       dbg("Local::spot1 error $@") if isdbg('local') if $@;
 545                         return if $r;
 546
 547                         # DON'T be silly and send on PC26s!
 548                         return if $pcno == 26;
 549
 550                         # send out the filtered spots
 551                         send_dx_spot($self, $line, @spot) if @spot;
 552                         return;
 553                 }
 554
 555                 if ($pcno == 12) {              # announces
 556
 557 #                       return if $rspfcheck and !$self->rspfcheck(1, $field[5], $field[1]);
 558
 559                         # announce duplicate checking
 560                         $field[3] =~ s/^\s+//;  # remove leading blanks
 561
 562                         if ($censorpc) {
 563                                 my @bad;
 564                                 if (@bad = BadWords::check($field[3])) {
 565                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 566                                         return;
 567                                 }
 568                         }
 569
 570                         # if this is a 'nodx' node then ignore it
 571                         if ($badnode->in($field[5])) {
 572                                 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
 573                                 return;
 574                         }
 575
 576                         # if this is a 'bad spotter' user then ignore it
 577                         my $nossid = $field[1];
 578                         $nossid =~ s/-\d+$//;
 579                         if ($badspotter->in($nossid)) {
 580                                 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
 581                                 return;
 582                         }
 583
 584                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 585
 586
 587                                 # here's a bit of fun, convert incoming ann with a callsign in the first word
 588                                 # or one saying 'to <call>' to a talk if we can route to the recipient
 589                                 if ($ann_to_talk) {
 590                                         my $call = AnnTalk::is_talk_candidate($field[1], $field[3]);
 591                                         if ($call) {
 592                                                 my $ref = Route::get($call);
 593                                                 if ($ref) {
 594                                                         my $dxchan = $ref->dxchan;
 595                                                         $dxchan->talk($field[1], $call, undef, $field[3], $field[5]) if $dxchan != $self;
 596                                                         return;
 597                                                 }
 598                                         }
 599                                 }
 600
 601                                 # send it
 602                                 $self->send_announce($line, @field[1..6]);
 603                         } else {
 604                                 $self->route($field[2], $line);
 605                         }
 606                         return;
 607                 }
 608
 609                 if ($pcno == 13) {
 610                         last SWITCH;
 611                 }
 612                 if ($pcno == 14) {
 613                         last SWITCH;
 614                 }
 615                 if ($pcno == 15) {
 616                         last SWITCH;
 617                 }
 618
 619                 if ($pcno == 16) {              # add a user
 620
 621                         if (eph_dup($line)) {
 622                                 dbg("PCPROT: dup PC16 detected") if isdbg('chanerr');
 623                                 return;
 624                         }
 625
 626                         # general checks
 627                         my $dxchan;
 628                         my $ncall = $field[1];
 629                         my $newline = "PC16^";
 630
 631                         # do I want users from this channel?
 632                         unless ($self->user->wantpc16) {
 633                                 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
 634                                 return;
 635                         }
 636                         # is it me?
 637                         if ($ncall eq $main::mycall) {
 638                                 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
 639                                 return;
 640                         }
 641                         my $parent = Route::Node::get($ncall);
 642                         unless ($parent) {
 643                                 dbg("PCPROT: Node $ncall not in config") if isdbg('chanerr');
 644                                 return;
 645                         }
 646                         $dxchan = $parent->dxchan;
 647                         if ($dxchan && $dxchan ne $self) {
 648                                 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
 649                                 return;
 650                         }
 651
 652                         # input filter if required
 653                         return unless $self->in_filter_route($parent);
 654
 655                         my $i;
 656                         my @rout;
 657                         for ($i = 2; $i < $#field; $i++) {
 658                                 my ($call, $conf, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 659                                 next unless $call && $conf && defined $here && is_callsign($call);
 660                                 next if $call eq $main::mycall;
 661
 662                                 eph_del_regex("^PC17\\^$call\\^$ncall");
 663
 664                                 $conf = $conf eq '*';
 665
 666                                 # reject this if we think it is a node already
 667                                 my $r = Route::Node::get($call);
 668                                 my $u = DXUser->get_current($call) unless $r;
 669                                 if ($r || ($u && $u->is_node)) {
 670                                         dbg("PCPROT: $call is a node") if isdbg('chanerr');
 671                                         next;
 672                                 }
 673
 674                                 $r = Route::User::get($call);
 675                                 my $flags = Route::here($here)|Route::conf($conf);
 676
 677                                 if ($r) {
 678                                         if ($r->flags != $flags) {
 679                                                 $r->flags($flags);
 680                                                 push @rout, $r;
 681                                         }
 682                                         $r->addparent($parent);
 683                                 } else {
 684                                         push @rout, $parent->add_user($call, $flags);
 685                                 }
 686
 687                                 # add this station to the user database, if required
 688                                 $call =~ s/-\d+$//o;        # remove ssid for users
 689                                 my $user = DXUser->get_current($call);
 690                                 $user = DXUser->new($call) if !$user;
 691                                 $user->homenode($parent->call) if !$user->homenode;
 692                                 $user->node($parent->call);
 693                                 $user->lastin($main::systime) unless DXChannel->get($call);
 694                                 $user->put;
 695                         }
 696
 697                         # queue up any messages (look for privates only)
 698                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 699
 700                         $self->route_pc16($parent, @rout) if @rout;
 701                         return;
 702                 }
 703
 704                 if ($pcno == 17) {              # remove a user
 705                         my $dxchan;
 706                         my $ncall = $field[2];
 707                         my $ucall = $field[1];
 708
 709                         eph_del_regex("^PC16\\^$ncall.*$ucall");
 710
 711                         # do I want users from this channel?
 712                         unless ($self->user->wantpc16) {
 713                                 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
 714                                 return;
 715                         }
 716                         if ($ncall eq $main::mycall) {
 717                                 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
 718                                 return;
 719                         }
 720
 721                         my $uref = Route::User::get($ucall);
 722                         unless ($uref) {
 723                                 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
 724                                 return;
 725                         }
 726                         my $parent = Route::Node::get($ncall);
 727                         unless ($parent) {
 728                                 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
 729                                 return;
 730                         }
 731
 732                         $dxchan = $parent->dxchan;
 733                         if ($dxchan && $dxchan ne $self) {
 734                                 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
 735                                 return;
 736                         }
 737
 738                         # input filter if required
 739                         return unless $self->in_filter_route($parent);
 740
 741                         $parent->del_user($uref);
 742
 743                         if (eph_dup($line)) {
 744                                 dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
 745                                 return;
 746                         }
 747
 748                         $self->route_pc17($parent, $uref);
 749                         return;
 750                 }
 751
 752                 if ($pcno == 18) {              # link request
 753                         $self->state('init');
 754
 755                         # record the type and version offered
 756                         if ($field[1] =~ /DXSpider Version: (\d+\.\d+) Build: (\d+\.\d+)/) {
 757                                 $self->version(53 + $1);
 758                                 $self->user->version(53 + $1);
 759                                 $self->build(0 + $2);
 760                                 $self->user->build(0 + $2);
 761                                 unless ($self->is_spider) {
 762                                         $self->user->sort('S');
 763                                         $self->user->put;
 764                                         $self->sort('S');
 765                                 }
 766                         } else {
 767                                 $self->version(50.0);
 768                                 $self->version($field[2] / 100) if $field[2] && $field[2] =~ /^\d+$/;
 769                                 $self->user->version($self->version);
 770                         }
 771
 772                         # first clear out any nodes on this dxchannel
 773                         my $parent = Route::Node::get($self->{call});
 774                         my @rout = $parent->del_nodes;
 775                         $self->route_pc21(@rout, $parent) if @rout;
 776                         $self->send_local_config();
 777                         $self->send(pc20());
 778                         return;             # we don't pass these on
 779                 }
 780
 781                 if ($pcno == 19) {              # incoming cluster list
 782                         my $i;
 783                         my $newline = "PC19^";
 784
 785                         if (eph_dup($line)) {
 786                                 dbg("PCPROT: dup PC19 detected") if isdbg('chanerr');
 787                                 return;
 788                         }
 789
 790                         # new routing list
 791                         my @rout;
 792                         my $parent = Route::Node::get($self->{call});
 793                         unless ($parent) {
 794                                 dbg("DXPROT: my parent $self->{call} has disappeared");
 795                                 $self->disconnect;
 796                                 return;
 797                         }
 798
 799                         # parse the PC19
 800                         for ($i = 1; $i < $#field-1; $i += 4) {
 801                                 my $here = $field[$i];
 802                                 my $call = uc $field[$i+1];
 803                                 my $conf = $field[$i+2];
 804                                 my $ver = $field[$i+3];
 805                                 next unless defined $here && defined $conf && is_callsign($call);
 806
 807                                 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
 808
 809                                 # check for sane parameters
 810 #                               $ver = 5000 if $ver eq '0000';
 811                                 next if $ver < 5000; # only works with version 5 software
 812                                 next if length $call < 3; # min 3 letter callsigns
 813                                 next if $call eq $main::mycall;
 814
 815                                 # check that this PC19 isn't trying to alter the wrong dxchan
 816                                 my $dxchan = DXChannel->get($call);
 817                                 if ($dxchan && $dxchan != $self) {
 818                                         dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
 819                                         next;
 820                                 }
 821
 822                                 # update it if required
 823                                 my $r = Route::Node::get($call);
 824                                 my $flags = Route::here($here)|Route::conf($conf);
 825                                 if ($r) {
 826                                         my $ar;
 827                                         if ($call ne $parent->call) {
 828                                                 if ($self->in_filter_route($r)) {
 829                                                         $ar = $parent->add($call, $ver, $flags);
 830                                                         push @rout, $ar if $ar;
 831                                                 } else {
 832                                                         next;
 833                                                 }
 834                                         }
 835                                         if ($r->version ne $ver || $r->flags != $flags) {
 836                                                 $r->version($ver);
 837                                                 $r->flags($flags);
 838                                                 push @rout, $r unless $ar;
 839                                         }
 840                                 } else {
 841                                         if ($call eq $self->{call}) {
 842                                                 dbg("DXPROT: my channel route for $call has disappeared");
 843                                                 next;
 844                                         };
 845
 846                                         my $new = Route->new($call);          # throw away
 847                                     if ($self->in_filter_route($new)) {
 848                                                 my $r = $parent->add($call, $ver, $flags);
 849                                                 push @rout, $r;
 850                                         } else {
 851                                                 next;
 852                                         }
 853                                 }
 854
 855                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 856                                 my $mref = DXMsg::get_busy($call);
 857                                 $mref->stop_msg($call) if $mref;
 858
 859                                 # add this station to the user database, if required (don't remove SSID from nodes)
 860                                 my $user = DXUser->get_current($call);
 861                                 if (!$user) {
 862                                         $user = DXUser->new($call);
 863                                         $user->sort('A');
 864                                         $user->priv(1);                   # I have relented and defaulted nodes
 865                                         $user->lockout(1);
 866                                         $user->homenode($call);
 867                                         $user->node($call);
 868                                 }
 869                                 $user->lastin($main::systime) unless DXChannel->get($call);
 870                                 $user->put;
 871                         }
 872
 873
 874                         $self->route_pc19(@rout) if @rout;
 875                         return;
 876                 }
 877
 878                 if ($pcno == 20) {              # send local configuration
 879                         $self->send_local_config();
 880                         $self->send(pc22());
 881                         $self->state('normal');
 882                         $self->{lastping} = 0;
 883                         return;
 884                 }
 885
 886                 if ($pcno == 21) {              # delete a cluster from the list
 887                         my $call = uc $field[1];
 888
 889                         eph_del_regex("^PC1[79].*$call");
 890
 891                         # if I get a PC21 from the same callsign as self then treat it
 892                         # as a PC39: I have gone away
 893                         if ($call eq $self->call) {
 894                                 $self->disconnect(1);
 895                                 return;
 896                         }
 897
 898                         my @rout;
 899                         my $parent = Route::Node::get($self->{call});
 900                         unless ($parent) {
 901                                 dbg("DXPROT: my parent $self->{call} has disappeared");
 902                                 $self->disconnect;
 903                                 return;
 904                         }
 905                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 906                                 my $node = Route::Node::get($call);
 907                                 if ($node) {
 908
 909                                         my $dxchan = DXChannel->get($call);
 910                                         if ($dxchan && $dxchan != $self) {
 911                                                 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chanerr');
 912                                                 return;
 913                                         }
 914
 915                                         # input filter it
 916                                         return unless $self->in_filter_route($node);
 917
 918                                         # routing objects
 919                                         push @rout, $node->del($parent);
 920                                 }
 921                         } else {
 922                                 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
 923                                 return;
 924                         }
 925
 926 #                       if (eph_dup($line)) {
 927 #                               dbg("PCPROT: dup PC21 detected") if isdbg('chanerr');
 928 #                               return;
 929 #                       }
 930
 931                         $self->route_pc21(@rout) if @rout;
 932                         return;
 933                 }
 934
 935                 if ($pcno == 22) {
 936                         $self->state('normal');
 937                         $self->{lastping} = 0;
 938                         return;
 939                 }
 940
 941                 if ($pcno == 23 || $pcno == 27) { # WWV info
 942
 943                         # route 'foreign' pc27s
 944                         if ($pcno == 27) {
 945                                 if ($field[8] ne $main::mycall) {
 946                                         $self->route($field[8], $line);
 947                                         return;
 948                                 }
 949                         }
 950
 951                         return if $rspfcheck and !$self->rspfcheck(1, $field[8], $field[7]);
 952
 953                         # do some de-duping
 954                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 955                         my $sfi = unpad($field[3]);
 956                         my $k = unpad($field[4]);
 957                         my $i = unpad($field[5]);
 958                         my ($r) = $field[6] =~ /R=(\d+)/;
 959                         $r = 0 unless $r;
 960                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 961                                 dbg("PCPROT: WWV Date ($field[1] $field[2]) out of range") if isdbg('chanerr');
 962                                 return;
 963                         }
 964                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 965                                 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
 966                                 return;
 967                         }
 968                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 969
 970                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 971
 972                         my $rep;
 973                         eval {
 974                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 975                         };
 976 #                       dbg("Local::wwv2 error $@") if isdbg('local') if $@;
 977                         return if $rep;
 978
 979                         # DON'T be silly and send on PC27s!
 980                         return if $pcno == 27;
 981
 982                         # broadcast to the eager world
 983                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 984                         return;
 985                 }
 986
 987                 if ($pcno == 24) {              # set here status
 988                         my $call = uc $field[1];
 989                         my ($nref, $uref);
 990                         $nref = Route::Node::get($call);
 991                         $uref = Route::User::get($call);
 992                         return unless $nref || $uref;   # if we don't know where they are, it's pointless sending it on
 993
 994                         unless (eph_dup($line)) {
 995                                 $nref->here($field[2]) if $nref;
 996                                 $uref->here($field[2]) if $uref;
 997                                 my $ref = $nref || $uref;
 998                                 return unless $self->in_filter_route($ref);
 999                                 $self->route_pc24($ref, $field[3]);
1000                         }
1001                         return;
1002                 }
1003
1004                 if ($pcno == 25) {      # merge request
1005                         if ($field[1] ne $main::mycall) {
1006                                 $self->route($field[1], $line);
1007                                 return;
1008                         }
1009                         if ($field[2] eq $main::mycall) {
1010                                 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
1011                                 return;
1012                         }
1013
1014                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[2]");
1015
1016                         # spots
1017                         if ($field[3] > 0) {
1018                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
1019                                 my $in;
1020                                 foreach $in (@in) {
1021                                         $self->send(pc26(@{$in}[0..4], $field[2]));
1022                                 }
1023                         }
1024
1025                         # wwv
1026                         if ($field[4] > 0) {
1027                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
1028                                 my $in;
1029                                 foreach $in (@in) {
1030                                         $self->send(pc27(@{$in}[0..5], $field[2]));
1031                                 }
1032                         }
1033                         return;
1034                 }
1035
1036                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
1037                         return if $pcno == 49 && eph_dup($line);
1038                         if ($pcno == 49 || $field[1] eq $main::mycall) {
1039                                 DXMsg::process($self, $line);
1040                         } else {
1041                                 $self->route($field[1], $line) unless $self->is_clx;
1042                         }
1043                         return;
1044                 }
1045
1046                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
1047                         if (eph_dup($line, $eph_pc34_restime)) {
1048                                 dbg("PCPROT: dupe") if isdbg('chanerr');
1049                         } else {
1050                                 $self->process_rcmd($field[1], $field[2], $field[2], $field[3]);
1051                         }
1052                         return;
1053                 }
1054
1055                 if ($pcno == 35) {              # remote command replies
1056                         eph_del_regex("^PC35\\^$field[2]\\^$field[1]\\^");
1057                         $self->process_rcmd_reply($field[1], $field[2], $field[1], $field[3]);
1058                         return;
1059                 }
1060
1061                 # for pc 37 see 44 onwards
1062
1063                 if ($pcno == 38) {              # node connected list from neighbour
1064                         return;
1065                 }
1066
1067                 if ($pcno == 39) {              # incoming disconnect
1068                         if ($field[1] eq $self->{call}) {
1069                                 $self->disconnect(1);
1070                         } else {
1071                                 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1072                         }
1073                         return;
1074                 }
1075
1076                 if ($pcno == 41) {              # user info
1077                         my $call = $field[1];
1078
1079                         if (eph_dup($line, $eph_info_restime)) {
1080                                 dbg("PCPROT: dupe") if isdbg('chanerr');
1081                                 return;
1082                         }
1083
1084                         # input filter if required
1085 #                       my $ref = Route::get($call) || Route->new($call);
1086 #                       return unless $self->in_filter_route($ref);
1087
1088                         if ($field[3] eq $field[2] || $field[3] =~ /^\s*$/) {
1089                                 dbg('PCPROT: invalid value') if isdbg('chanerr');
1090                                 return;
1091                         }
1092
1093                         # add this station to the user database, if required
1094                         my $user = DXUser->get_current($call);
1095                         $user = DXUser->new($call) unless $user;
1096
1097                         if ($field[2] == 1) {
1098                                 $user->name($field[3]);
1099                         } elsif ($field[2] == 2) {
1100                                 $user->qth($field[3]);
1101                         } elsif ($field[2] == 3) {
1102                                 if (is_latlong($field[3])) {
1103                                         my ($lat, $long) = DXBearing::stoll($field[3]);
1104                                         $user->lat($lat);
1105                                         $user->long($long);
1106                                         $user->qra(DXBearing::lltoqra($lat, $long));
1107                                 } else {
1108                                         dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1109                                         return;
1110                                 }
1111                         } elsif ($field[2] == 4) {
1112                                 $user->homenode($field[3]);
1113                         } elsif ($field[2] == 5) {
1114                                 if (is_qra(uc $field[3])) {
1115                                         my ($lat, $long) = DXBearing::qratoll(uc $field[3]);
1116                                         $user->lat($lat);
1117                                         $user->long($long);
1118                                         $user->qra(uc $field[3]);
1119                                 } else {
1120                                         dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1121                                         return;
1122                                 }
1123                         }
1124                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
1125                         $user->put;
1126
1127                         unless ($self->{isolate}) {
1128                                 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1129                         }
1130
1131 #  perhaps this IS what we want after all
1132 #                       $self->route_pc41($ref, $call, $field[2], $field[3], $field[4]);
1133                         return;
1134                 }
1135
1136                 if ($pcno == 43) {
1137                         last SWITCH;
1138                 }
1139
1140                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
1141                         DXDb::process($self, $line);
1142                         return;
1143                 }
1144
1145                 if ($pcno == 50) {              # keep alive/user list
1146                         my $call = $field[1];
1147                         my $node = Route::Node::get($call);
1148                         if ($node) {
1149                                 return unless $node->call eq $self->{call};
1150                                 $node->usercount($field[2]);
1151
1152                                 # input filter if required
1153                                 return unless $self->in_filter_route($node);
1154
1155                                 $self->route_pc50($node, $field[2], $field[3]) unless eph_dup($line);
1156                         }
1157                         return;
1158                 }
1159
1160                 if ($pcno == 51) {              # incoming ping requests/answers
1161                         my $to = $field[1];
1162                         my $from = $field[2];
1163                         my $flag = $field[3];
1164
1165
1166                         # is it for us?
1167                         if ($to eq $main::mycall) {
1168                                 if ($flag == 1) {
1169                                         $self->send(pc51($from, $to, '0'));
1170                                 } else {
1171                                         # it's a reply, look in the ping list for this one
1172                                         my $ref = $pings{$from};
1173                                         if ($ref) {
1174                                                 my $tochan =  DXChannel->get($from);
1175                                                 while (@$ref) {
1176                                                         my $r = shift @$ref;
1177                                                         my $dxchan = DXChannel->get($r->{call});
1178                                                         next unless $dxchan;
1179                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
1180                                                         if ($dxchan->is_user) {
1181                                                                 my $s = sprintf "%.2f", $t;
1182                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
1183                                                                 $dxchan->send($dxchan->msg('pingi', $from, $s, $ave))
1184                                                         } elsif ($dxchan->is_node) {
1185                                                                 if ($tochan) {
1186                                                                         my $nopings = $tochan->user->nopings || 2;
1187                                                                         push @{$tochan->{pingtime}}, $t;
1188                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
1189
1190                                                                         # cope with a missed ping, this means you must set the pingint large enough
1191                                                                         if ($t > $tochan->{pingint}  && $t < 2 * $tochan->{pingint} ) {
1192                                                                                 $t -= $tochan->{pingint};
1193                                                                         }
1194
1195                                                                         # calc smoothed RTT a la TCP
1196                                                                         if (@{$tochan->{pingtime}} == 1) {
1197                                                                                 $tochan->{pingave} = $t;
1198                                                                         } else {
1199                                                                                 $tochan->{pingave} = $tochan->{pingave} + (($t - $tochan->{pingave}) / 6);
1200                                                                         }
1201                                                                         $tochan->{nopings} = $nopings; # pump up the timer
1202                                                                 }
1203                                                         }
1204                                                 }
1205                                         }
1206                                 }
1207                         } else {
1208                                 if (eph_dup($line)) {
1209                                         dbg("PCPROT: dup PC51 detected") if isdbg('chanerr');
1210                                         return;
1211                                 }
1212                                 # route down an appropriate thingy
1213                                 $self->route($to, $line);
1214                         }
1215                         return;
1216                 }
1217
1218                 if ($pcno == 75) {              # dunno but route it
1219                         my $call = $field[1];
1220                         if ($call ne $main::mycall) {
1221                                 $self->route($call, $line);
1222                         }
1223                         return;
1224                 }
1225
1226                 if ($pcno == 73) {  # WCY broadcasts
1227                         my $call = $field[1];
1228
1229                         # do some de-duping
1230                         my $d = cltounix($call, sprintf("%02d18Z", $field[2]));
1231                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
1232                                 dbg("PCPROT: WCY Date ($call $field[2]) out of range") if isdbg('chanerr');
1233                                 return;
1234                         }
1235                         @field = map { unpad($_) } @field;
1236                         if (WCY::dup($d)) {
1237                                 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1238                                 return;
1239                         }
1240
1241                         my $wcy = WCY::update($d, @field[2..12]);
1242
1243                         my $rep;
1244                         eval {
1245                                 $rep = Local::wcy($self, @field[1..12]);
1246                         };
1247                         # dbg("Local::wcy error $@") if isdbg('local') if $@;
1248                         return if $rep;
1249
1250                         # broadcast to the eager world
1251                         send_wcy_spot($self, $line, $d, @field[2..12]);
1252                         return;
1253                 }
1254
1255                 if ($pcno == 84) { # remote commands (incoming)
1256                         $self->process_rcmd($field[1], $field[2], $field[3], $field[4]);
1257                         return;
1258                 }
1259
1260                 if ($pcno == 85) {              # remote command replies
1261                         $self->process_rcmd_reply($field[1], $field[2], $field[3], $field[4]);
1262
1263                         return;
1264                 }
1265                 if ($pcno == 90) {              # new style PC16,17,19,21
1266                         return;
1267                 }
1268         }
1269
1270         # if get here then rebroadcast the thing with its Hop count decremented (if
1271         # there is one). If it has a hop count and it decrements to zero then don't
1272         # rebroadcast it.
1273         #
1274         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1275         #        REBROADCAST!!!!
1276         #
1277
1278         if (eph_dup($line)) {
1279                 dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr');
1280         } else {
1281                 unless ($self->{isolate}) {
1282                         DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1283                 }
1284         }
1285 }
1286
1287 #
1288 # This is called from inside the main cluster processing loop and is used
1289 # for despatching commands that are doing some long processing job
1290 #
1291 sub process
1292 {
1293         my $t = time;
1294         my @dxchan = DXChannel->get_all();
1295         my $dxchan;
1296         my $pc50s;
1297
1298         # send out a pc50 on EVERY channel all at once
1299         if ($t >= $last_pc50 + $DXProt::pc50_interval) {
1300                 $pc50s = pc50($main::me, scalar DXChannel::get_all_users);
1301                 eph_dup($pc50s);
1302                 $last_pc50 = $t;
1303         }
1304
1305         foreach $dxchan (@dxchan) {
1306                 next unless $dxchan->is_node();
1307                 next if $dxchan == $main::me;
1308
1309                 # send the pc50 or PC90
1310                 $dxchan->send($pc50s) if $pc50s;
1311
1312                 # send a ping out on this channel
1313                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1314                         if ($dxchan->{nopings} <= 0) {
1315                                 $dxchan->disconnect;
1316                         } else {
1317                                 addping($main::mycall, $dxchan->call);
1318                                 $dxchan->{nopings} -= 1;
1319                                 $dxchan->{lastping} = $t;
1320                         }
1321                 }
1322         }
1323
1324         # every ten seconds
1325         if ($t - $last10 >= 10) {
1326                 # clean out ephemera
1327
1328                 eph_clean();
1329
1330                 $last10 = $t;
1331         }
1332
1333         if ($main::systime - 3600 > $last_hour) {
1334                 $last_hour = $main::systime;
1335         }
1336 }
1337
1338 #
1339 # finish up a pc context
1340 #
1341
1342 #
1343 # some active measures
1344 #
1345
1346
1347 sub send_dx_spot
1348 {
1349         my $self = shift;
1350         my $line = shift;
1351         my @dxchan = DXChannel->get_all();
1352         my $dxchan;
1353
1354         # send it if it isn't the except list and isn't isolated and still has a hop count
1355         # taking into account filtering and so on
1356         foreach $dxchan (@dxchan) {
1357                 next if $dxchan == $main::me;
1358                 next if $dxchan == $self && $self->is_node;
1359                 $dxchan->dx_spot($line, $self->{isolate}, @_, $self->{call});
1360         }
1361 }
1362
1363 sub dx_spot
1364 {
1365         my $self = shift;
1366         my $line = shift;
1367         my $isolate = shift;
1368         my ($filter, $hops);
1369
1370         if ($self->{spotsfilter}) {
1371                 ($filter, $hops) = $self->{spotsfilter}->it(@_);
1372                 return unless $filter;
1373         }
1374         send_prot_line($self, $filter, $hops, $isolate, $line);
1375 }
1376
1377 sub send_prot_line
1378 {
1379         my ($self, $filter, $hops, $isolate, $line) = @_;
1380         my $routeit;
1381
1382         if ($hops) {
1383                 $routeit = $line;
1384                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1385         } else {
1386                 $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
1387                 return unless $routeit;
1388         }
1389         if ($filter) {
1390                 $self->send($routeit);
1391         } else {
1392                 $self->send($routeit) unless $self->{isolate} || $isolate;
1393         }
1394 }
1395
1396
1397 sub send_wwv_spot
1398 {
1399         my $self = shift;
1400         my $line = shift;
1401         my @dxchan = DXChannel->get_all();
1402         my $dxchan;
1403         my ($wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1404         my @dxcc = Prefix::extract($_[6]);
1405         if (@dxcc > 0) {
1406                 $wwv_dxcc = $dxcc[1]->dxcc;
1407                 $wwv_itu = $dxcc[1]->itu;
1408                 $wwv_cq = $dxcc[1]->cq;
1409         }
1410         @dxcc = Prefix::extract($_[7]);
1411         if (@dxcc > 0) {
1412                 $org_dxcc = $dxcc[1]->dxcc;
1413                 $org_itu = $dxcc[1]->itu;
1414                 $org_cq = $dxcc[1]->cq;
1415         }
1416
1417         # send it if it isn't the except list and isn't isolated and still has a hop count
1418         # taking into account filtering and so on
1419         foreach $dxchan (@dxchan) {
1420                 next if $dxchan == $main::me;
1421                 next if $dxchan == $self && $self->is_node;
1422                 my $routeit;
1423                 my ($filter, $hops);
1424
1425                 $dxchan->wwv($line, $self->{isolate}, @_, $self->{call}, $wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq);
1426         }
1427
1428 }
1429
1430 sub wwv
1431 {
1432         my $self = shift;
1433         my $line = shift;
1434         my $isolate = shift;
1435         my ($filter, $hops);
1436
1437         if ($self->{wwvfilter}) {
1438                 ($filter, $hops) = $self->{wwvfilter}->it(@_);
1439                 return unless $filter;
1440         }
1441         send_prot_line($self, $filter, $hops, $isolate, $line)
1442 }
1443
1444 sub send_wcy_spot
1445 {
1446         my $self = shift;
1447         my $line = shift;
1448         my @dxchan = DXChannel->get_all();
1449         my $dxchan;
1450         my ($wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1451         my @dxcc = Prefix::extract($_[10]);
1452         if (@dxcc > 0) {
1453                 $wcy_dxcc = $dxcc[1]->dxcc;
1454                 $wcy_itu = $dxcc[1]->itu;
1455                 $wcy_cq = $dxcc[1]->cq;
1456         }
1457         @dxcc = Prefix::extract($_[11]);
1458         if (@dxcc > 0) {
1459                 $org_dxcc = $dxcc[1]->dxcc;
1460                 $org_itu = $dxcc[1]->itu;
1461                 $org_cq = $dxcc[1]->cq;
1462         }
1463
1464         # send it if it isn't the except list and isn't isolated and still has a hop count
1465         # taking into account filtering and so on
1466         foreach $dxchan (@dxchan) {
1467                 next if $dxchan == $main::me;
1468                 next if $dxchan == $self;
1469
1470                 $dxchan->wcy($line, $self->{isolate}, @_, $self->{call}, $wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq);
1471         }
1472 }
1473
1474 sub wcy
1475 {
1476         my $self = shift;
1477         my $line = shift;
1478         my $isolate = shift;
1479         my ($filter, $hops);
1480
1481         if ($self->{wcyfilter}) {
1482                 ($filter, $hops) = $self->{wcyfilter}->it(@_);
1483                 return unless $filter;
1484         }
1485         send_prot_line($self, $filter, $hops, $isolate, $line) if $self->is_clx || $self->is_spider || $self->is_dxnet;
1486 }
1487
1488 # send an announce
1489 sub send_announce
1490 {
1491         my $self = shift;
1492         my $line = shift;
1493         my @dxchan = DXChannel->get_all();
1494         my $dxchan;
1495         my $target;
1496         my $to = 'To ';
1497         my $text = unpad($_[2]);
1498
1499         if ($_[3] eq '*') {     # sysops
1500                 $target = "SYSOP";
1501         } elsif ($_[3] gt ' ') { # speciality list handling
1502                 my ($name) = split /\./, $_[3];
1503                 $target = "$name"; # put the rest in later (if bothered)
1504         }
1505
1506         if ($_[5] eq '1') {
1507                 $target = "WX";
1508                 $to = '';
1509         }
1510         $target = "ALL" if !$target;
1511
1512
1513         # obtain country codes etc
1514         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1515         my ($ann_state, $org_state) = ("", "");
1516         my @dxcc = Prefix::extract($_[0]);
1517         if (@dxcc > 0) {
1518                 $ann_dxcc = $dxcc[1]->dxcc;
1519                 $ann_itu = $dxcc[1]->itu;
1520                 $ann_cq = $dxcc[1]->cq;
1521                 $ann_state = $dxcc[1]->state;
1522         }
1523         @dxcc = Prefix::extract($_[4]);
1524         if (@dxcc > 0) {
1525                 $org_dxcc = $dxcc[1]->dxcc;
1526                 $org_itu = $dxcc[1]->itu;
1527                 $org_cq = $dxcc[1]->cq;
1528                 $org_state = $dxcc[1]->state;
1529         }
1530
1531         if ($self->{inannfilter}) {
1532                 my ($filter, $hops) =
1533                         $self->{inannfilter}->it(@_, $self->{call},
1534                                                                          $ann_dxcc, $ann_itu, $ann_cq,
1535                                                                          $org_dxcc, $org_itu, $org_cq, $ann_state, $org_state);
1536                 unless ($filter) {
1537                         dbg("PCPROT: Rejected by input announce filter") if isdbg('chanerr');
1538                         return;
1539                 }
1540         }
1541
1542         if (AnnTalk::dup($_[0], $_[1], $_[2])) {
1543                 dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');
1544                 return;
1545         }
1546
1547         Log('ann', $target, $_[0], $text);
1548
1549         # send it if it isn't the except list and isn't isolated and still has a hop count
1550         # taking into account filtering and so on
1551         foreach $dxchan (@dxchan) {
1552                 next if $dxchan == $main::me;
1553                 next if $dxchan == $self && $self->is_node;
1554                 $dxchan->announce($line, $self->{isolate}, $to, $target, $text, @_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1555         }
1556 }
1557
1558 sub announce
1559 {
1560         my $self = shift;
1561         my $line = shift;
1562         my $isolate = shift;
1563         my $to = shift;
1564         my $target = shift;
1565         my $text = shift;
1566         my ($filter, $hops);
1567
1568         if ($self->{annfilter}) {
1569                 ($filter, $hops) = $self->{annfilter}->it(@_);
1570                 return unless $filter;
1571         }
1572         send_prot_line($self, $filter, $hops, $isolate, $line) unless $_[1] eq $main::mycall;
1573 }
1574
1575
1576 sub send_local_config
1577 {
1578         my $self = shift;
1579         my $node;
1580         my @nodes;
1581         my @localnodes;
1582         my @remotenodes;
1583
1584         dbg('DXProt::send_local_config') if isdbg('trace');
1585
1586         # send our nodes
1587         if ($self->{isolate}) {
1588                 @localnodes = ( $main::routeroot );
1589         } else {
1590                 # create a list of all the nodes that are not connected to this connection
1591                 # and are not themselves isolated, this to make sure that isolated nodes
1592         # don't appear outside of this node
1593                 my @dxchan = grep { $_->call ne $main::mycall && $_ != $self && !$_->{isolate} } DXChannel::get_all_nodes();
1594                 @localnodes = map { my $r = Route::Node::get($_->{call}); $r ? $r : () } @dxchan if @dxchan;
1595                 my @intcalls = map { $_->nodes } @localnodes if @localnodes;
1596                 my $ref = Route::Node::get($self->{call});
1597                 my @rnodes = $ref->nodes;
1598                 for my $node (@intcalls) {
1599                         push @remotenodes, Route::Node::get($node) unless grep $node eq $_, @rnodes;
1600                 }
1601                 unshift @localnodes, $main::routeroot;
1602         }
1603
1604
1605         $self->send_route(\&pc19, scalar(@localnodes)+scalar(@remotenodes), @localnodes, @remotenodes);
1606
1607         # get all the users connected on the above nodes and send them out
1608         foreach $node (@localnodes, @remotenodes) {
1609                 if ($node) {
1610                         my @rout = map {my $r = Route::User::get($_); $r ? ($r) : ()} $node->users;
1611                         $self->send_route(\&pc16, 1, $node, @rout) if @rout && $self->user->wantsendpc16;
1612                 } else {
1613                         dbg("sent a null value") if isdbg('chanerr');
1614                 }
1615         }
1616 }
1617
1618 #
1619 # route a message down an appropriate interface for a callsign
1620 #
1621 # is called route(to, pcline);
1622 #
1623 sub route
1624 {
1625         my ($self, $call, $line) = @_;
1626
1627         if (ref $self && $call eq $self->{call}) {
1628                 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
1629                 return;
1630         }
1631
1632         # always send it down the local interface if available
1633         my $dxchan = DXChannel->get($call);
1634         unless ($dxchan) {
1635                 my $cl = Route::get($call);
1636                 $dxchan = $cl->dxchan if $cl;
1637                 if (ref $dxchan) {
1638                         if (ref $self && $dxchan eq $self) {
1639                                 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
1640                                 return;
1641                         }
1642                 }
1643         }
1644         if ($dxchan) {
1645                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1646                 if ($routeit) {
1647                         $dxchan->send($routeit) unless $dxchan == $main::me;
1648                 }
1649         } else {
1650                 dbg("PCPROT: No route available, dropped") if isdbg('chanerr');
1651         }
1652 }
1653
1654 #
1655 # obtain the hops from the list for this callsign and pc no
1656 #
1657
1658 sub get_hops
1659 {
1660         my $pcno = shift;
1661         my $hops = $DXProt::hopcount{$pcno};
1662         $hops = $DXProt::def_hopcount if !$hops;
1663         return "H$hops";
1664 }
1665
1666 #
1667 # adjust the hop count on a per node basis using the user loadable
1668 # hop table if available or else decrement an existing one
1669 #
1670
1671 sub adjust_hops
1672 {
1673         my $self = shift;
1674         my $s = shift;
1675         my $call = $self->{call};
1676         my $hops;
1677
1678         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1679                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1680                 confess "$call called adjust_hops with '$s'" unless $pcno;
1681                 my $ref = $nodehops{$call} if %nodehops;
1682                 if ($ref) {
1683                         my $newhops = $ref->{$pcno};
1684                         return "" if defined $newhops && $newhops == 0;
1685                         $newhops = $ref->{default} unless $newhops;
1686                         return "" if defined $newhops && $newhops == 0;
1687                         $newhops = $hops if !$newhops;
1688                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1689                 } else {
1690                         # simply decrement it
1691                         $hops--;
1692                         return "" if !$hops;
1693                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1694                 }
1695         }
1696         return $s;
1697 }
1698
1699 #
1700 # load hop tables
1701 #
1702 sub load_hops
1703 {
1704         my $self = shift;
1705         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1706         do "$main::data/hop_table.pl";
1707         return $@ if $@;
1708         return ();
1709 }
1710
1711
1712 # add a ping request to the ping queues
1713 sub addping
1714 {
1715         my ($from, $to) = @_;
1716         my $ref = $pings{$to} || [];
1717         my $r = {};
1718         $r->{call} = $from;
1719         $r->{t} = [ gettimeofday ];
1720         route(undef, $to, pc51($to, $main::mycall, 1));
1721         push @$ref, $r;
1722         $pings{$to} = $ref;
1723 }
1724
1725 sub process_rcmd
1726 {
1727         my ($self, $tonode, $fromnode, $user, $cmd) = @_;
1728         if ($tonode eq $main::mycall) {
1729                 my $ref = DXUser->get_current($fromnode);
1730                 my $cref = Route::Node::get($fromnode);
1731                 Log('rcmd', 'in', $ref->{priv}, $fromnode, $cmd);
1732                 if ($cmd !~ /^\s*rcmd/i && $cref && $ref && $cref->call eq $ref->homenode) { # not allowed to relay RCMDS!
1733                         if ($ref->{priv}) {             # you have to have SOME privilege, the commands have further filtering
1734                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1735                                 my $oldpriv = $self->{priv};
1736                                 $self->{priv} = $ref->{priv}; # assume the user's privilege level
1737                                 my @in = (DXCommandmode::run_cmd($self, $cmd));
1738                                 $self->{priv} = $oldpriv;
1739                                 $self->send_rcmd_reply($main::mycall, $fromnode, $user, @in);
1740                                 delete $self->{remotecmd};
1741                         } else {
1742                                 $self->send_rcmd_reply($main::mycall, $fromnode, $user, "sorry...!");
1743                         }
1744                 } else {
1745                         $self->send_rcmd_reply($main::mycall, $fromnode, $user, "your attempt is logged, Tut tut tut...!");
1746                 }
1747         } else {
1748                 my $ref = DXUser->get_current($tonode);
1749                 if ($ref && $ref->is_clx) {
1750                         $self->route($tonode, pc84($fromnode, $tonode, $user, $cmd));
1751                 } else {
1752                         $self->route($tonode, pc34($fromnode, $tonode, $cmd));
1753                 }
1754         }
1755 }
1756
1757 sub process_rcmd_reply
1758 {
1759         my ($self, $tonode, $fromnode, $user, $line) = @_;
1760         if ($tonode eq $main::mycall) {
1761                 my $s = $rcmds{$fromnode};
1762                 if ($s) {
1763                         my $dxchan = DXChannel->get($s->{call});
1764                         my $ref = $user eq $tonode ? $dxchan : (DXChannel->get($user) || $dxchan);
1765                         $ref->send($line) if $ref;
1766                         delete $rcmds{$fromnode} if !$dxchan;
1767                 } else {
1768                         # send unsolicited ones to the sysop
1769                         my $dxchan = DXChannel->get($main::myalias);
1770                         $dxchan->send($line) if $dxchan;
1771                 }
1772         } else {
1773                 my $ref = DXUser->get_current($tonode);
1774                 if ($ref && $ref->is_clx) {
1775                         $self->route($tonode, pc85($fromnode, $tonode, $user, $line));
1776                 } else {
1777                         $self->route($tonode, pc35($fromnode, $tonode, $line));
1778                 }
1779         }
1780 }
1781
1782 sub send_rcmd_reply
1783 {
1784         my $self = shift;
1785         my $tonode = shift;
1786         my $fromnode = shift;
1787         my $user = shift;
1788         while (@_) {
1789                 my $line = shift;
1790                 $line =~ s/\s*$//;
1791                 Log('rcmd', 'out', $fromnode, $line);
1792                 if ($self->is_clx) {
1793                         $self->send(pc85($main::mycall, $fromnode, $user, "$main::mycall:$line"));
1794                 } else {
1795                         $self->send(pc35($main::mycall, $fromnode, "$main::mycall:$line"));
1796                 }
1797         }
1798 }
1799
1800 # add a rcmd request to the rcmd queues
1801 sub addrcmd
1802 {
1803         my ($self, $to, $cmd) = @_;
1804
1805         my $r = {};
1806         $r->{call} = $self->{call};
1807         $r->{t} = $main::systime;
1808         $r->{cmd} = $cmd;
1809         $rcmds{$to} = $r;
1810
1811         my $ref = Route::Node::get($to);
1812         my $dxchan = $ref->dxchan;
1813         if ($dxchan && $dxchan->is_clx) {
1814                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1815         } else {
1816                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1817         }
1818 }
1819
1820 sub disconnect
1821 {
1822         my $self = shift;
1823         my $pc39flag = shift;
1824         my $call = $self->call;
1825
1826         return if $self->{disconnecting}++;
1827
1828         unless ($pc39flag && $pc39flag == 1) {
1829                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1830         }
1831
1832         # get rid of any PC16 and 19s
1833         eph_del_regex("^PC16\\^$call");
1834         eph_del_regex("^PC19\\^.*$call");
1835
1836         # do routing stuff
1837         my $node = Route::Node::get($call);
1838         my @rout;
1839         if ($node) {
1840                 @rout = $node->del($main::routeroot);
1841         }
1842
1843         # unbusy and stop and outgoing mail
1844         my $mref = DXMsg::get_busy($call);
1845         $mref->stop_msg($call) if $mref;
1846
1847         # broadcast to all other nodes that all the nodes connected to via me are gone
1848         unless ($pc39flag && $pc39flag == 2) {
1849                 $self->route_pc21(@rout) if @rout;
1850         }
1851
1852         # remove outstanding pings
1853         delete $pings{$call};
1854
1855         # I was the last node visited
1856     $self->user->node($main::mycall);
1857
1858         # send info to all logged in thingies
1859         $self->tell_login('logoutn');
1860
1861         Log('DXProt', $call . " Disconnected");
1862
1863         $self->SUPER::disconnect;
1864 }
1865
1866
1867 #
1868 # send a talk message to this thingy
1869 #
1870 sub talk
1871 {
1872         my ($self, $from, $to, $via, $line, $origin) = @_;
1873
1874         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1875         $self->send(DXProt::pc10($from, $to, $via, $line, $origin));
1876         Log('talk', $to, $from, $via?$via:$self->call, $line) unless $origin && $origin ne $main::mycall;
1877 }
1878
1879 # send it if it isn't the except list and isn't isolated and still has a hop count
1880 # taking into account filtering and so on
1881 sub send_route
1882 {
1883         my $self = shift;
1884         my $generate = shift;
1885         my $no = shift;     # the no of things to filter on
1886         my $routeit;
1887         my ($filter, $hops);
1888         my @rin;
1889
1890         for (; @_ && $no; $no--) {
1891                 my $r = shift;
1892
1893                 if (!$self->{isolate} && $self->{routefilter}) {
1894                         $filter = undef;
1895                         if ($r) {
1896                                 ($filter, $hops) = $self->{routefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq, $self->{state}, $r->{state});
1897                                 if ($filter) {
1898                                         push @rin, $r;
1899                                 } else {
1900                                         dbg("DXPROT: $self->{call}/" . $r->call . " rejected by output filter") if isdbg('chanerr');
1901                                 }
1902                         } else {
1903                                 dbg("was sent a null value") if isdbg('chanerr');
1904                         }
1905                 } else {
1906                         push @rin, $r unless $self->{isolate} && $r->call ne $main::mycall;
1907                 }
1908         }
1909         if (@rin) {
1910                 foreach my $line (&$generate(@rin, @_)) {
1911                         if ($hops) {
1912                                 $routeit = $line;
1913                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1914                         } else {
1915                                 $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
1916                                 next unless $routeit;
1917                         }
1918                         $self->send($routeit);
1919                 }
1920         }
1921 }
1922
1923 sub broadcast_route
1924 {
1925         my $self = shift;
1926         my $generate = shift;
1927         my @dxchan = DXChannel::get_all_nodes();
1928         my $dxchan;
1929         my $line;
1930
1931         unless ($self->{isolate}) {
1932                 foreach $dxchan (@dxchan) {
1933                         next if $dxchan == $self;
1934                         next if $dxchan == $main::me;
1935                         next if $dxchan->user->wantnp;
1936                         next if ($generate == \&pc16 || $generate==\&pc17) && !$dxchan->user->wantsendpc16;
1937
1938                         $dxchan->send_route($generate, @_);
1939                 }
1940         }
1941 }
1942
1943 sub route_pc16
1944 {
1945         my $self = shift;
1946         return unless $self->user->wantpc16;
1947         broadcast_route($self, \&pc16, 1, @_);
1948 }
1949
1950 sub route_pc17
1951 {
1952         my $self = shift;
1953         return unless $self->user->wantpc16;
1954         broadcast_route($self, \&pc17, 1, @_);
1955 }
1956
1957 sub route_pc19
1958 {
1959         my $self = shift;
1960         broadcast_route($self, \&pc19, scalar @_, @_);
1961 }
1962
1963 sub route_pc21
1964 {
1965         my $self = shift;
1966         broadcast_route($self, \&pc21, scalar @_, @_);
1967 }
1968
1969 sub route_pc24
1970 {
1971         my $self = shift;
1972         broadcast_route($self, \&pc24, 1, @_);
1973 }
1974
1975 sub route_pc41
1976 {
1977         my $self = shift;
1978         broadcast_route($self, \&pc41, 1, @_);
1979 }
1980
1981 sub route_pc50
1982 {
1983         my $self = shift;
1984         broadcast_route($self, \&pc50, 1, @_);
1985 }
1986
1987 sub route_pc90
1988 {
1989         my $self = shift;
1990         broadcast_route($self, \&pc90, 1, @_);
1991 }
1992
1993 sub in_filter_route
1994 {
1995         my $self = shift;
1996         my $r = shift;
1997         my ($filter, $hops) = (1, 1);
1998
1999         if ($self->{inroutefilter}) {
2000                 ($filter, $hops) = $self->{inroutefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq, $self->state, $r->state);
2001                 dbg("PCPROT: $self->{call}/" . $r->call . ' rejected by in_filter_route') if !$filter && isdbg('chanerr');
2002         }
2003         return $filter;
2004 }
2005
2006 sub eph_dup
2007 {
2008         my $s = shift;
2009         my $t = shift || $eph_restime;
2010         my $r;
2011
2012         # chop the end off
2013         $s =~ s/\^H\d\d?\^?\~?$//;
2014         $r = 1 if exists $eph{$s};    # pump up the dup if it keeps circulating
2015         $eph{$s} = $main::systime + $t;
2016         return $r;
2017 }
2018
2019 sub eph_del_regex
2020 {
2021         my $regex = shift;
2022         my ($key, $val);
2023         while (($key, $val) = each %eph) {
2024                 if ($key =~ m{$regex}) {
2025                         delete $eph{$key};
2026                 }
2027         }
2028 }
2029
2030 sub eph_clean
2031 {
2032         my ($key, $val);
2033
2034         while (($key, $val) = each %eph) {
2035                 if ($main::systime >= $val) {
2036                         delete $eph{$key};
2037                 }
2038         }
2039 }
2040
2041 sub eph_list
2042 {
2043         my ($key, $val);
2044         my @out;
2045
2046         while (($key, $val) = each %eph) {
2047                 push @out, $key, $val;
2048         }
2049         return @out;
2050 }
2051
2052 sub run_cmd
2053 {
2054         goto &DXCommandmode::run_cmd;
2055 }
2056 1;
2057 __END__