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
  36 use strict;
  37
  38 use vars qw($VERSION $BRANCH);
  39 $VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
  40 $BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/ ) || 0;
  41 $main::build += $VERSION;
  42 $main::branch += $BRANCH;
  43
  44 use vars qw($me $pc11_max_age $pc23_max_age $last_pc50
  45                         $last_hour $last10 %eph  %pings %rcmds $ann_to_talk
  46                         %nodehops $baddx $badspotter $badnode $censorpc
  47                         $allowzero $decode_dk0wcy $send_opernam @checklist);
  48
  49 $me = undef;                                    # the channel id for this cluster
  50 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  51 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  52
  53 $last_hour = time;                              # last time I did an hourly periodic update
  54 %pings = ();                    # outstanding ping requests outbound
  55 %rcmds = ();                    # outstanding rcmd requests outbound
  56 %nodehops = ();                 # node specific hop control
  57 $censorpc = 1;                                  # Do a BadWords::check on text fields and reject things
  58                                                                 # loads of 'bad things'
  59 $baddx = new DXHash "baddx";
  60 $badspotter = new DXHash "badspotter";
  61 $badnode = new DXHash "badnode";
  62 $last10 = $last_pc50 = time;
  63 $ann_to_talk = 1;
  64
  65 @checklist =
  66 (
  67  [ qw(c c m bp bc c) ],                 # pc10
  68  [ qw(f m d t m c c h) ],               # pc11
  69  [ qw(c bc m bp bm p h) ],              # pc12
  70  [ qw(c h) ],                                   #
  71  [ qw(c h) ],                                   #
  72  [ qw(c m h) ],                                 #
  73  undef ,                                                # pc16 has to be validated manually
  74  [ qw(c c h) ],                                 # pc17
  75  [ qw(m n) ],                                   # pc18
  76  undef ,                                                # pc19 has to be validated manually
  77  undef ,                                                # pc20 no validation
  78  [ qw(c m h) ],                                 # pc21
  79  undef ,                                                # pc22 no validation
  80  [ qw(d n n n n m c c h) ],             # pc23
  81  [ qw(c p h) ],                                 # pc24
  82  [ qw(c c n n) ],                               # pc25
  83  [ qw(f m d t m c c bc) ],              # pc26
  84  [ qw(d n n n n m c c bc) ],    # pc27
  85  [ qw(c c m c d t p m bp n p bp bc) ], # pc28
  86  [ qw(c c n m) ],                               # pc29
  87  [ qw(c c n) ],                                 # pc30
  88  [ qw(c c n) ],                                 # pc31
  89  [ qw(c c n) ],                                 # pc32
  90  [ qw(c c n) ],                                 # pc33
  91  [ qw(c c m) ],                                 # pc34
  92  [ qw(c c m) ],                                 # pc35
  93  [ qw(c c m) ],                                 # pc36
  94  [ qw(c c n m) ],                               # pc37
  95  undef,                                                 # pc38 not interested
  96  [ qw(c m) ],                                   # pc39
  97  [ qw(c c m p n) ],                             # pc40
  98  [ qw(c n m h) ],                               # pc41
  99  [ qw(c c n) ],                                 # pc42
 100  undef,                                                 # pc43 don't handle it
 101  [ qw(c c n m m c) ],                   # pc44
 102  [ qw(c c n m) ],                               # pc45
 103  [ qw(c c n) ],                                 # pc46
 104  undef,                                                 # pc47
 105  undef,                                                 # pc48
 106  [ qw(c m h) ],                                 # pc49
 107  [ qw(c n h) ],                                 # pc50
 108  [ qw(c c n) ],                                 # pc51
 109  undef,
 110  undef,
 111  undef,
 112  undef,
 113  undef,
 114  undef,
 115  undef,
 116  undef,
 117  undef,                                                 # pc60
 118  undef,
 119  undef,
 120  undef,
 121  undef,
 122  undef,
 123  undef,
 124  undef,
 125  undef,
 126  undef,
 127  undef,                                                 # pc70
 128  undef,
 129  undef,
 130  [ qw(d n n n n n n m m m c c h) ],     # pc73
 131  undef,
 132  undef,
 133  undef,
 134  undef,
 135  undef,
 136  undef,
 137  undef,                                                 # pc80
 138  undef,
 139  undef,
 140  undef,
 141  [ qw(c c c m) ],                               # pc84
 142  [ qw(c c c m) ],                               # pc85
 143 );
 144
 145 # use the entry in the check list to check the field list presented
 146 # return OK if line NOT in check list (for now)
 147 sub check
 148 {
 149         my $n = shift;
 150         $n -= 10;
 151         return 0 if $n < 0 || $n > @checklist;
 152         my $ref = $checklist[$n];
 153         return 0 unless ref $ref;
 154
 155         my $i;
 156         shift;    # not interested in the first field
 157         for ($i = 0; $i < @$ref; $i++) {
 158                 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
 159                 return 0 unless $act;
 160                 next if $blank && $_[$i] =~ /^[ \*]$/;
 161                 if ($act eq 'c') {
 162                         return $i+1 unless is_callsign($_[$i]);
 163                 } elsif ($act eq 'm') {
 164                         return $i+1 unless is_pctext($_[$i]);
 165                 } elsif ($act eq 'p') {
 166                         return $i+1 unless is_pcflag($_[$i]);
 167                 } elsif ($act eq 'f') {
 168                         return $i+1 unless is_freq($_[$i]);
 169                 } elsif ($act eq 'n') {
 170                         return $i+1 unless $_[$i] =~ /^[\d ]+$/;
 171                 } elsif ($act eq 'h') {
 172                         return $i+1 unless $_[$i] =~ /^H\d\d?$/;
 173                 } elsif ($act eq 'd') {
 174                         return $i+1 unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
 175                 } elsif ($act eq 't') {
 176                         return $i+1 unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
 177                 }
 178         }
 179         return 0;
 180 }
 181
 182 sub init
 183 {
 184         my $user = DXUser->get($main::mycall);
 185         $DXProt::myprot_version += $main::version*100;
 186         $me = DXProt->new($main::mycall, 0, $user);
 187         $me->{here} = 1;
 188         $me->{state} = "indifferent";
 189         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
 190         confess $@ if $@;
 191         $me->{sort} = 'S';    # S for spider
 192         $me->{priv} = 9;
 193 #       $Route::Node::me->adddxchan($me);
 194 }
 195
 196 #
 197 # obtain a new connection this is derived from dxchannel
 198 #
 199
 200 sub new
 201 {
 202         my $self = DXChannel::alloc(@_);
 203
 204         # add this node to the table, the values get filled in later
 205         my $pkg = shift;
 206         my $call = shift;
 207         $main::routeroot->add($call, '0000', Route::here(1)) if $call ne $main::mycall;
 208
 209         return $self;
 210 }
 211
 212 # this is how a pc connection starts (for an incoming connection)
 213 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
 214 # all the crap that comes between).
 215 sub start
 216 {
 217         my ($self, $line, $sort) = @_;
 218         my $call = $self->{call};
 219         my $user = $self->{user};
 220
 221         # log it
 222         my $host = $self->{conn}->{peerhost} || "unknown";
 223         Log('DXProt', "$call connected from $host");
 224
 225         # remember type of connection
 226         $self->{consort} = $line;
 227         $self->{outbound} = $sort eq 'O';
 228         my $priv = $user->priv;
 229         $priv = $user->priv(1) unless $priv;
 230         $self->{priv} = $priv;     # other clusters can always be 'normal' users
 231         $self->{lang} = $user->lang || 'en';
 232         $self->{isolate} = $user->{isolate};
 233         $self->{consort} = $line;       # save the connection type
 234         $self->{here} = 1;
 235         $self->{width} = 80;
 236
 237         # get the output filters
 238         $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
 239         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
 240         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
 241         $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
 242         $self->{routefilter} = Filter::read_in('route', $call, 0) || Filter::read_in('route', 'node_default', 0) unless $self->{isolate} ;
 243
 244
 245         # get the INPUT filters (these only pertain to Clusters)
 246         $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
 247         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
 248         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
 249         $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);
 250         $self->{inroutefilter} = Filter::read_in('route', $call, 1) || Filter::read_in('route', 'node_default', 1) unless $self->{isolate};
 251
 252         # set unbuffered and no echo
 253         $self->send_now('B',"0");
 254         $self->send_now('E',"0");
 255
 256         # ping neighbour node stuff
 257         my $ping = $user->pingint;
 258         $ping = 5*60 unless defined $ping;
 259         $self->{pingint} = $ping;
 260         $self->{nopings} = $user->nopings || 2;
 261         $self->{pingtime} = [ ];
 262         $self->{pingave} = 999;
 263         $self->{lastping} = $main::systime;
 264
 265         # send initialisation string
 266         unless ($self->{outbound}) {
 267                 $self->send(pc18());
 268         }
 269
 270         $self->state('init');
 271         $self->{pc50_t} = $main::systime;
 272
 273         # send info to all logged in thingies
 274         $self->tell_login('loginn');
 275 }
 276
 277 #
 278 # This is the normal pcxx despatcher
 279 #
 280 sub normal
 281 {
 282         my ($self, $line) = @_;
 283         my @field = split /\^/, $line;
 284         return unless @field;
 285
 286         pop @field if $field[-1] eq '~';
 287
 288 #       print join(',', @field), "\n";
 289
 290
 291         # process PC frames, this will fail unless the frame starts PCnn
 292         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 293         return unless $pcno;
 294         return if $pcno < 10 || $pcno > 99;
 295
 296         # check for and dump bad protocol messages
 297         my $n = check($pcno, @field);
 298         if ($n) {
 299                 dbg("PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")") if isdbg('chanerr');
 300                 return;
 301         }
 302
 303         # local processing 1
 304         my $pcr;
 305         eval {
 306                 $pcr = Local::pcprot($self, $pcno, @field);
 307         };
 308 #       dbg("Local::pcprot error $@") if isdbg('local') if $@;
 309         return if $pcr;
 310
 311  SWITCH: {
 312                 if ($pcno == 10) {              # incoming talk
 313
 314                         # will we allow it at all?
 315                         if ($censorpc) {
 316                                 my @bad;
 317                                 if (@bad = BadWords::check($field[3])) {
 318                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 319                                         return;
 320                                 }
 321                         }
 322
 323                         # is it for me or one of mine?
 324                         my ($to, $via, $call, $dxchan);
 325                         if ($field[5] gt ' ') {
 326                                 $via = $field[2];
 327                                 $to = $field[5];
 328                         } else {
 329                                 $to = $field[2];
 330                         }
 331
 332                         # it is here and logged on
 333                         $dxchan = DXChannel->get($main::myalias) if $to eq $main::mycall;
 334                         $dxchan = DXChannel->get($to) unless $dxchan;
 335                         if ($dxchan && $dxchan->is_user) {
 336                                 $field[3] =~ s/\%5E/^/g;
 337                                 $dxchan->talk($field[1], $to, $via, $field[3]);
 338                                 return;
 339                         }
 340
 341                         # is it elsewhere, visible on the cluster via the to address?
 342                         # note: this discards the via unless the to address is on
 343                         # the via address
 344                         my ($ref, $vref);
 345                         if ($ref = Route::get($to)) {
 346                                 $vref = Route::Node::get($via) if $via;
 347                                 $vref = undef unless $vref && grep $to eq $_, $vref->users;
 348                                 $ref->dxchan->talk($field[1], $to, $vref ? $via : undef, $field[3], $field[6]);
 349                                 return;
 350                         }
 351
 352                         # not visible here, send a message of condolence
 353                         $vref = undef;
 354                         $ref = Route::get($field[1]);
 355                         $vref = $ref = Route::Node::get($field[6]) unless $ref;
 356                         if ($ref) {
 357                                 $dxchan = $ref->dxchan;
 358                                 $dxchan->talk($main::mycall, $field[1], $vref ? $vref->call : undef, $dxchan->msg('talknh', $to) );
 359                         }
 360                         return;
 361                 }
 362
 363                 if ($pcno == 11 || $pcno == 26) { # dx spot
 364
 365                         # route 'foreign' pc26s
 366                         if ($pcno == 26) {
 367                                 if ($field[7] ne $main::mycall) {
 368                                         $self->route($field[7], $line);
 369                                         return;
 370                                 }
 371                         }
 372
 373                         # if this is a 'nodx' node then ignore it
 374                         if ($badnode->in($field[7])) {
 375                                 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
 376                                 return;
 377                         }
 378
 379                         # if this is a 'bad spotter' user then ignore it
 380                         if ($badspotter->in($field[6])) {
 381                                 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
 382                                 return;
 383                         }
 384
 385                         # convert the date to a unix date
 386                         my $d = cltounix($field[3], $field[4]);
 387                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 388                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 389                                 dbg("PCPROT: Spot ignored, invalid date or out of range ($field[3] $field[4])\n") if isdbg('chanerr');
 390                                 return;
 391                         }
 392
 393                         # is it 'baddx'
 394                         if ($baddx->in($field[2])) {
 395                                 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
 396                                 return;
 397                         }
 398
 399                         # do some de-duping
 400                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 401                         $field[2] = unpad($field[2]);   # take off leading and trailing blanks from spotted callsign
 402                         if ($field[2] =~ /BUST\w*$/) {
 403                                 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
 404                                 return;
 405                         }
 406                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 407                                 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
 408                                 return;
 409                         }
 410                         if ($censorpc) {
 411                                 my @bad;
 412                                 if (@bad = BadWords::check($field[5])) {
 413                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 414                                         return;
 415                                 }
 416                         }
 417
 418                         my @spot = Spot::prepare($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 419                         # global spot filtering on INPUT
 420                         if ($self->{inspotsfilter}) {
 421                                 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
 422                                 unless ($filter) {
 423                                         dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
 424                                         return;
 425                                 }
 426                         }
 427
 428                         # add it
 429                         Spot::add(@spot);
 430
 431             #
 432                         # @spot at this point contains:-
 433             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 434                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 435                         # you should be able to route on any of these
 436             #
 437
 438                         # fix up qra locators of known users
 439                         my $user = DXUser->get_current($spot[4]);
 440                         if ($user) {
 441                                 my $qra = $user->qra;
 442                                 unless ($qra && is_qra($qra)) {
 443                                         my $lat = $user->lat;
 444                                         my $long = $user->long;
 445                                         if (defined $lat && defined $long) {
 446                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 447                                                 $user->put;
 448                                         }
 449                                 }
 450
 451                                 # send a remote command to a distant cluster if it is visible and there is no
 452                                 # qra locator and we havn't done it for a month.
 453
 454                                 unless ($user->qra) {
 455                                         my $node;
 456                                         my $to = $user->homenode;
 457                                         my $last = $user->lastoper || 0;
 458                                         if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
 459                                                 my $cmd = "forward/opernam $spot[4]";
 460                                                 # send the rcmd but we aren't interested in the replies...
 461                                                 my $dxchan = $node->dxchan;
 462                                                 if ($dxchan && $dxchan->is_clx) {
 463                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 464                                                 } else {
 465                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 466                                                 }
 467                                                 if ($to ne $field[7]) {
 468                                                         $to = $field[7];
 469                                                         $node = Route::Node::get($to);
 470                                                         if ($node) {
 471                                                                 $dxchan = $node->dxchan;
 472                                                                 if ($dxchan && $dxchan->is_clx) {
 473                                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 474                                                                 } else {
 475                                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 476                                                                 }
 477                                                         }
 478                                                 }
 479                                                 $user->lastoper($main::systime);
 480                                                 $user->put;
 481                                         }
 482                                 }
 483                         }
 484
 485                         # local processing
 486                         my $r;
 487                         eval {
 488                                 $r = Local::spot($self, @spot);
 489                         };
 490 #                       dbg("Local::spot1 error $@") if isdbg('local') if $@;
 491                         return if $r;
 492
 493                         # DON'T be silly and send on PC26s!
 494                         return if $pcno == 26;
 495
 496                         # send out the filtered spots
 497                         send_dx_spot($self, $line, @spot) if @spot;
 498                         return;
 499                 }
 500
 501                 if ($pcno == 12) {              # announces
 502                         # announce duplicate checking
 503                         $field[3] =~ s/^\s+//;  # remove leading blanks
 504                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 505                                 dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');
 506                                 return;
 507                         }
 508
 509                         if ($censorpc) {
 510                                 my @bad;
 511                                 if (@bad = BadWords::check($field[3])) {
 512                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 513                                         return;
 514                                 }
 515                         }
 516
 517                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 518
 519
 520                                 # here's a bit of fun, convert incoming ann with a callsign in the first word
 521                                 # or one saying 'to <call>' to a talk if we can route to the recipient
 522                                 if ($ann_to_talk) {
 523                                         my ($to, $call) = $field[3] =~ /^\s*([\w-]+)[\s:]+([\w-]+)/;
 524                                         if ($to && $call) {
 525                                                 if ((uc $to eq 'TO' && is_callsign(uc $call)) || is_callsign($call = uc $to)) {
 526                                                         my $ref = Route::get($call);
 527                                                         if ($ref) {
 528                                                                 $ref->dxchan->talk($field[1], $call, undef, $field[3], $field[5]);
 529                                                                 return;
 530                                                         }
 531                                                 }
 532                                         }
 533                                 }
 534
 535                                 # send it
 536                                 $self->send_announce($line, @field[1..6]);
 537                         } else {
 538                                 $self->route($field[2], $line);
 539                         }
 540                         return;
 541                 }
 542
 543                 if ($pcno == 13) {
 544                         last SWITCH;
 545                 }
 546                 if ($pcno == 14) {
 547                         last SWITCH;
 548                 }
 549                 if ($pcno == 15) {
 550                         last SWITCH;
 551                 }
 552
 553                 if ($pcno == 16) {              # add a user
 554
 555                         # general checks
 556                         my $dxchan;
 557                         my $ncall = $field[1];
 558                         my $newline = "PC16^";
 559
 560                         if ($ncall eq $main::mycall) {
 561                                 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
 562                                 return;
 563                         }
 564                         $dxchan = DXChannel->get($ncall);
 565                         if ($dxchan && $dxchan ne $self) {
 566                                 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
 567                                 return;
 568                         }
 569                         my $parent = Route::Node::get($ncall);
 570                         unless ($parent) {
 571                                 dbg("PCPROT: Node $ncall not in config") if isdbg('chanerr');
 572                                 return;
 573                         }
 574
 575                         # input filter if required
 576                         return unless $self->in_filter_route($parent);
 577
 578                         my $i;
 579                         my @rout;
 580                         for ($i = 2; $i < $#field; $i++) {
 581                                 my ($call, $conf, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 582                                 next unless $call && $conf && defined $here && is_callsign($call);
 583                                 next if $call eq $main::mycall;
 584
 585                                 eph_del_regex("^PC17\^$call\^$ncall");
 586
 587                                 $conf = $conf eq '*';
 588
 589                                 # reject this if we think it is a node already
 590                                 my $r = Route::Node::get($call);
 591                                 my $u = DXUser->get_current($call) unless $r;
 592                                 if ($r || ($u && $u->is_node)) {
 593                                         dbg("PCPROT: $call is a node") if isdbg('chanerr');
 594                                         next;
 595                                 }
 596
 597                                 $r = Route::User::get($call);
 598                                 my $flags = Route::here($here)|Route::conf($conf);
 599
 600                                 if ($r) {
 601                                         if ($r->flags != $flags) {
 602                                                 $r->flags($flags);
 603                                                 push @rout, $r;
 604                                         }
 605                                         $r->addparent($parent);
 606                                 } else {
 607                                         push @rout, $parent->add_user($call, $flags);
 608                                 }
 609
 610                                 # add this station to the user database, if required
 611                                 $call =~ s/-\d+$//o;        # remove ssid for users
 612                                 my $user = DXUser->get_current($call);
 613                                 $user = DXUser->new($call) if !$user;
 614                                 $user->homenode($parent->call) if !$user->homenode;
 615                                 $user->node($parent->call);
 616                                 $user->lastin($main::systime) unless DXChannel->get($call);
 617                                 $user->put;
 618                         }
 619
 620                         if (eph_dup($line)) {
 621                                 dbg("PCPROT: dup PC16 detected") if isdbg('chanerr');
 622                                 return;
 623                         }
 624
 625                         # queue up any messages (look for privates only)
 626                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 627
 628                         $self->route_pc16($parent, @rout) if @rout;
 629                         return;
 630                 }
 631
 632                 if ($pcno == 17) {              # remove a user
 633                         my $dxchan;
 634                         my $ncall = $field[2];
 635                         my $ucall = $field[1];
 636
 637                         eph_del_regex("^PC16.*$ncall.*$ucall");
 638
 639                         if ($ncall eq $main::mycall) {
 640                                 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
 641                                 return;
 642                         }
 643                         $dxchan = DXChannel->get($ncall);
 644                         if ($dxchan && $dxchan ne $self) {
 645                                 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
 646                                 return;
 647                         }
 648
 649                         my $uref = Route::User::get($ucall);
 650                         unless ($uref) {
 651                                 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
 652                                 return;
 653                         }
 654                         my $parent = Route::Node::get($ncall);
 655                         unless ($parent) {
 656                                 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
 657                                 return;
 658                         }
 659
 660                         # input filter if required
 661                         return unless $self->in_filter_route($parent);
 662
 663                         my @rout = $parent->del_user($uref);
 664
 665                         if (eph_dup($line)) {
 666                                 dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
 667                                 return;
 668                         }
 669
 670                         $self->route_pc17($parent, @rout) if @rout;
 671                         return;
 672                 }
 673
 674                 if ($pcno == 18) {              # link request
 675                         $self->state('init');
 676
 677                         # first clear out any nodes on this dxchannel
 678                         my $parent = Route::Node::get($self->{call});
 679                         my @rout = $parent->del_nodes;
 680                         $self->route_pc21(@rout, $parent) if @rout;
 681                         $self->send_local_config();
 682                         $self->send(pc20());
 683                         return;             # we don't pass these on
 684                 }
 685
 686                 if ($pcno == 19) {              # incoming cluster list
 687                         my $i;
 688                         my $newline = "PC19^";
 689
 690                         # new routing list
 691                         my @rout;
 692                         my $parent = Route::Node::get($self->{call});
 693                         unless ($parent) {
 694                                 dbg("DXPROT: my parent $self->{call} has disappeared");
 695                                 $self->disconnect;
 696                                 return;
 697                         }
 698
 699                         # parse the PC19
 700                         for ($i = 1; $i < $#field-1; $i += 4) {
 701                                 my $here = $field[$i];
 702                                 my $call = uc $field[$i+1];
 703                                 my $conf = $field[$i+2];
 704                                 my $ver = $field[$i+3];
 705                                 next unless defined $here && defined $conf && is_callsign($call);
 706
 707                                 eph_del_regex("^PC(?:21\^$call|17\^[^\^]+\^$call)");
 708
 709                                 # check for sane parameters
 710                                 $ver = 5000 if $ver eq '0000';
 711                                 next if $ver < 5000; # only works with version 5 software
 712                                 next if length $call < 3; # min 3 letter callsigns
 713                                 next if $call eq $main::mycall;
 714
 715                                 # update it if required
 716                                 my $r = Route::Node::get($call);
 717                                 my $flags = Route::here($here)|Route::conf($conf);
 718                                 if ($r) {
 719                                         my $ar;
 720                                         if ($call ne $parent->call) {
 721                                                 if ($self->in_filter_route($r)) {
 722                                                         $ar = $parent->add($call, $ver, $flags);
 723                                                         push @rout, $ar if $ar;
 724                                                 } else {
 725                                                         next;
 726                                                 }
 727                                         }
 728                                         if ($r->version ne $ver || $r->flags != $flags) {
 729                                                 $r->version($ver);
 730                                                 $r->flags($flags);
 731                                                 push @rout, $r unless $ar;
 732                                         }
 733                                 } else {
 734                                         if ($call eq $self->{call}) {
 735                                                 dbg("DXPROT: my channel route for $call has disappeared");
 736                                                 next;
 737                                         };
 738
 739                                         my $new = Route->new($call);          # throw away
 740                                     if ($self->in_filter_route($new)) {
 741                                                 my $r = $parent->add($call, $ver, $flags);
 742                                                 push @rout, $r;
 743                                         } else {
 744                                                 next;
 745                                         }
 746                                 }
 747
 748                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 749                                 my $mref = DXMsg::get_busy($call);
 750                                 $mref->stop_msg($call) if $mref;
 751
 752                                 # add this station to the user database, if required (don't remove SSID from nodes)
 753                                 my $user = DXUser->get_current($call);
 754                                 if (!$user) {
 755                                         $user = DXUser->new($call);
 756                                         $user->sort('A');
 757                                         $user->priv(1);                   # I have relented and defaulted nodes
 758                                         $user->lockout(1);
 759                                         $user->homenode($call);
 760                                         $user->node($call);
 761                                 }
 762                                 $user->lastin($main::systime) unless DXChannel->get($call);
 763                                 $user->put;
 764                         }
 765
 766                         if (eph_dup($line)) {
 767                                 dbg("PCPROT: dup PC19 detected") if isdbg('chanerr');
 768                                 return;
 769                         }
 770
 771                         $self->route_pc19(@rout) if @rout;
 772                         return;
 773                 }
 774
 775                 if ($pcno == 20) {              # send local configuration
 776                         $self->send_local_config();
 777                         $self->send(pc22());
 778                         $self->state('normal');
 779                         $self->{lastping} = 0;
 780                         return;
 781                 }
 782
 783                 if ($pcno == 21) {              # delete a cluster from the list
 784                         my $call = uc $field[1];
 785
 786                         eph_del_regex("^PC1[79].*$call");
 787
 788                         my @rout;
 789                         my $parent = Route::Node::get($self->{call});
 790                         unless ($parent) {
 791                                 dbg("DXPROT: my parent $self->{call} has disappeared");
 792                                 $self->disconnect;
 793                                 return;
 794                         }
 795                         my $node = Route::Node::get($call);
 796                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 797                                 if ($call eq $self->{call}) {
 798                                         dbg("PCPROT: Trying to disconnect myself with PC21") if isdbg('chanerr');
 799                                         return;
 800                                 }
 801
 802                                 if ($node) {
 803                                         # input filter it
 804                                         return unless $self->in_filter_route($node);
 805
 806                                         # routing objects
 807                                         push @rout, $node->del($parent);
 808                                 }
 809                         } else {
 810                                 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
 811                                 return;
 812                         }
 813
 814                         if (eph_dup($line)) {
 815                                 dbg("PCPROT: dup PC21 detected") if isdbg('chanerr');
 816                                 return;
 817                         }
 818
 819                         $self->route_pc21(@rout) if @rout;
 820                         return;
 821                 }
 822
 823                 if ($pcno == 22) {
 824                         $self->state('normal');
 825                         $self->{lastping} = 0;
 826                         return;
 827                 }
 828
 829                 if ($pcno == 23 || $pcno == 27) { # WWV info
 830
 831                         # route 'foreign' pc27s
 832                         if ($pcno == 27) {
 833                                 if ($field[8] ne $main::mycall) {
 834                                         $self->route($field[8], $line);
 835                                         return;
 836                                 }
 837                         }
 838
 839                         # do some de-duping
 840                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 841                         my $sfi = unpad($field[3]);
 842                         my $k = unpad($field[4]);
 843                         my $i = unpad($field[5]);
 844                         my ($r) = $field[6] =~ /R=(\d+)/;
 845                         $r = 0 unless $r;
 846                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 847                                 dbg("PCPROT: WWV Date ($field[1] $field[2]) out of range") if isdbg('chanerr');
 848                                 return;
 849                         }
 850                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 851                                 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
 852                                 return;
 853                         }
 854                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 855
 856                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 857
 858                         my $rep;
 859                         eval {
 860                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 861                         };
 862 #                       dbg("Local::wwv2 error $@") if isdbg('local') if $@;
 863                         return if $rep;
 864
 865                         # DON'T be silly and send on PC27s!
 866                         return if $pcno == 27;
 867
 868                         # broadcast to the eager world
 869                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 870                         return;
 871                 }
 872
 873                 if ($pcno == 24) {              # set here status
 874                         my $call = uc $field[1];
 875                         my ($nref, $uref);
 876                         $nref = Route::Node::get($call);
 877                         $uref = Route::User::get($call);
 878                         return unless $nref || $uref;   # if we don't know where they are, it's pointless sending it on
 879
 880                         unless (eph_dup($line)) {
 881                                 $nref->here($field[2]) if $nref;
 882                                 $uref->here($field[2]) if $uref;
 883                                 my $ref = $nref || $uref;
 884                                 return unless $self->in_filter_route($ref);
 885                                 $self->route_pc24($ref, $field[3]);
 886                         }
 887                         return;
 888                 }
 889
 890                 if ($pcno == 25) {      # merge request
 891                         if ($field[1] ne $main::mycall) {
 892                                 $self->route($field[1], $line);
 893                                 return;
 894                         }
 895                         if ($field[2] eq $main::mycall) {
 896                                 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
 897                                 return;
 898                         }
 899
 900                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[2]");
 901
 902                         # spots
 903                         if ($field[3] > 0) {
 904                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 905                                 my $in;
 906                                 foreach $in (@in) {
 907                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 908                                 }
 909                         }
 910
 911                         # wwv
 912                         if ($field[4] > 0) {
 913                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 914                                 my $in;
 915                                 foreach $in (@in) {
 916                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 917                                 }
 918                         }
 919                         return;
 920                 }
 921
 922                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 923                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 924                                 DXMsg::process($self, $line);
 925                         } else {
 926                                 $self->route($field[1], $line) unless $self->is_clx;
 927                         }
 928                         return;
 929                 }
 930
 931                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 932                         $self->process_rcmd($field[1], $field[2], $field[2], $field[3]);
 933                         return;
 934                 }
 935
 936                 if ($pcno == 35) {              # remote command replies
 937                         $self->process_rcmd_reply($field[1], $field[2], $field[1], $field[3]);
 938                         return;
 939                 }
 940
 941                 # for pc 37 see 44 onwards
 942
 943                 if ($pcno == 38) {              # node connected list from neighbour
 944                         return;
 945                 }
 946
 947                 if ($pcno == 39) {              # incoming disconnect
 948                         if ($field[1] eq $self->{call}) {
 949                                 $self->disconnect(1);
 950                                 eph_del_regex("^PC(?:1[679]|21).*$field[1]");
 951                         } else {
 952                                 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
 953                         }
 954                         return;
 955                 }
 956
 957                 if ($pcno == 41) {              # user info
 958                         my $call = $field[1];
 959
 960                         # input filter if required
 961 #                       my $ref = Route::get($call) || Route->new($call);
 962 #                       return unless $self->in_filter_route($ref);
 963
 964                         if ($field[3] eq $field[2]) {
 965                                 dbg('PCPROT: invalid value') if isdbg('chanerr');
 966                                 return;
 967                         }
 968
 969                         # add this station to the user database, if required
 970                         my $user = DXUser->get_current($call);
 971                         $user = DXUser->new($call) if !$user;
 972
 973                         if ($field[2] == 1) {
 974                                 $user->name($field[3]);
 975                         } elsif ($field[2] == 2) {
 976                                 $user->qth($field[3]);
 977                         } elsif ($field[2] == 3) {
 978                                 if (is_latlong($field[3])) {
 979                                         my ($lat, $long) = DXBearing::stoll($field[3]);
 980                                         $user->lat($lat);
 981                                         $user->long($long);
 982                                         $user->qra(DXBearing::lltoqra($lat, $long));
 983                                 } else {
 984                                         dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
 985                                         return;
 986                                 }
 987                         } elsif ($field[2] == 4) {
 988                                 $user->homenode($field[3]);
 989                         } elsif ($field[2] == 5) {
 990                                 if (is_qra($field[3])) {
 991                                         my ($lat, $long) = DXBearing::qratoll($field[3]);
 992                                         $user->lat($lat);
 993                                         $user->long($long);
 994                                         $user->qra($field[3]);
 995                                 } else {
 996                                         dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
 997                                         return;
 998                                 }
 999                         }
1000                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
1001                         $user->put;
1002
1003 #  perhaps this IS what we want after all
1004 #                       $self->route_pc41($ref, $call, $field[2], $field[3], $field[4]);
1005 #                       return;
1006                 }
1007
1008                 if ($pcno == 43) {
1009                         last SWITCH;
1010                 }
1011
1012                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
1013                         DXDb::process($self, $line);
1014                         return;
1015                 }
1016
1017                 if ($pcno == 50) {              # keep alive/user list
1018                         my $call = $field[1];
1019                         my $node = Route::Node::get($call);
1020                         if ($node) {
1021                                 return unless $node->call eq $self->{call};
1022                                 $node->usercount($field[2]);
1023
1024                                 # input filter if required
1025                                 return unless $self->in_filter_route($node);
1026
1027                                 $self->route_pc50($node, $field[2], $field[3]) unless eph_dup($line);
1028                         }
1029                         return;
1030                 }
1031
1032                 if ($pcno == 51) {              # incoming ping requests/answers
1033                         my $to = $field[1];
1034                         my $from = $field[2];
1035                         my $flag = $field[3];
1036
1037
1038                         # is it for us?
1039                         if ($to eq $main::mycall) {
1040                                 if ($flag == 1) {
1041                                         $self->send(pc51($from, $to, '0'));
1042                                 } else {
1043                                         # it's a reply, look in the ping list for this one
1044                                         my $ref = $pings{$from};
1045                                         if ($ref) {
1046                                                 my $tochan =  DXChannel->get($from);
1047                                                 while (@$ref) {
1048                                                         my $r = shift @$ref;
1049                                                         my $dxchan = DXChannel->get($r->{call});
1050                                                         next unless $dxchan;
1051                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
1052                                                         if ($dxchan->is_user) {
1053                                                                 my $s = sprintf "%.2f", $t;
1054                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
1055                                                                 $dxchan->send($dxchan->msg('pingi', $from, $s, $ave))
1056                                                         } elsif ($dxchan->is_node) {
1057                                                                 if ($tochan) {
1058                                                                         my $nopings = $tochan->user->nopings || 2;
1059                                                                         push @{$tochan->{pingtime}}, $t;
1060                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
1061
1062                                                                         # cope with a missed ping, this means you must set the pingint large enough
1063                                                                         if ($t > $tochan->{pingint}  && $t < 2 * $tochan->{pingint} ) {
1064                                                                                 $t -= $tochan->{pingint};
1065                                                                         }
1066
1067                                                                         # calc smoothed RTT a la TCP
1068                                                                         if (@{$tochan->{pingtime}} == 1) {
1069                                                                                 $tochan->{pingave} = $t;
1070                                                                         } else {
1071                                                                                 $tochan->{pingave} = $tochan->{pingave} + (($t - $tochan->{pingave}) / 6);
1072                                                                         }
1073 #                                                                       my $st;
1074 #                                                                       for (@{$tochan->{pingtime}}) {
1075 #                                                                               $st += $_;
1076 #                                                                       }
1077 #                                                                       $tochan->{pingave} = $st / @{$tochan->{pingtime}};
1078                                                                         $tochan->{nopings} = $nopings; # pump up the timer
1079                                                                 }
1080                                                         }
1081                                                 }
1082                                         }
1083                                 }
1084                         } else {
1085                                 if (eph_dup($line)) {
1086                                         dbg("PCPROT: dup PC51 detected") if isdbg('chanerr');
1087                                         return;
1088                                 }
1089                                 # route down an appropriate thingy
1090                                 $self->route($to, $line);
1091                         }
1092                         return;
1093                 }
1094
1095                 if ($pcno == 75) {              # dunno but route it
1096                         my $call = $field[1];
1097                         if ($call ne $main::mycall) {
1098                                 $self->route($call, $line);
1099                         }
1100                         return;
1101                 }
1102
1103                 if ($pcno == 73) {  # WCY broadcasts
1104                         my $call = $field[1];
1105
1106                         # do some de-duping
1107                         my $d = cltounix($call, sprintf("%02d18Z", $field[2]));
1108                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
1109                                 dbg("PCPROT: WCY Date ($call $field[2]) out of range") if isdbg('chanerr');
1110                                 return;
1111                         }
1112                         @field = map { unpad($_) } @field;
1113                         if (WCY::dup($d,@field[3..7])) {
1114                                 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1115                                 return;
1116                         }
1117
1118                         my $wcy = WCY::update($d, @field[2..12]);
1119
1120                         my $rep;
1121                         eval {
1122                                 $rep = Local::wwv($self, @field[1..12]);
1123                         };
1124                         # dbg("Local::wcy error $@") if isdbg('local') if $@;
1125                         return if $rep;
1126
1127                         # broadcast to the eager world
1128                         send_wcy_spot($self, $line, $d, @field[2..12]);
1129                         return;
1130                 }
1131
1132                 if ($pcno == 84) { # remote commands (incoming)
1133                         $self->process_rcmd($field[1], $field[2], $field[3], $field[4]);
1134                         return;
1135                 }
1136
1137                 if ($pcno == 85) {              # remote command replies
1138                         $self->process_rcmd_reply($field[1], $field[2], $field[3], $field[4]);
1139
1140                         return;
1141                 }
1142         }
1143
1144         # if get here then rebroadcast the thing with its Hop count decremented (if
1145         # there is one). If it has a hop count and it decrements to zero then don't
1146         # rebroadcast it.
1147         #
1148         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1149         #        REBROADCAST!!!!
1150         #
1151
1152         if (eph_dup($line)) {
1153                 dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr');
1154         } else {
1155                 unless ($self->{isolate}) {
1156                         broadcast_ak1a($line, $self); # send it to everyone but me
1157                 }
1158         }
1159 }
1160
1161 #
1162 # This is called from inside the main cluster processing loop and is used
1163 # for despatching commands that are doing some long processing job
1164 #
1165 sub process
1166 {
1167         my $t = time;
1168         my @dxchan = DXChannel->get_all();
1169         my $dxchan;
1170         my $pc50s;
1171
1172         # send out a pc50 on EVERY channel all at once
1173         if ($t >= $last_pc50 + $DXProt::pc50_interval) {
1174                 $pc50s = pc50($me, scalar DXChannel::get_all_users);
1175                 eph_dup($pc50s);
1176                 $last_pc50 = $t;
1177         }
1178
1179         foreach $dxchan (@dxchan) {
1180                 next unless $dxchan->is_node();
1181                 next if $dxchan == $me;
1182
1183                 # send the pc50
1184                 $dxchan->send($pc50s) if $pc50s;
1185
1186                 # send a ping out on this channel
1187                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1188                         if ($dxchan->{nopings} <= 0) {
1189                                 $dxchan->disconnect;
1190                         } else {
1191                                 addping($main::mycall, $dxchan->call);
1192                                 $dxchan->{nopings} -= 1;
1193                                 $dxchan->{lastping} = $t;
1194                         }
1195                 }
1196         }
1197
1198         # every ten seconds
1199         if ($t - $last10 >= 10) {
1200                 # clean out ephemera
1201
1202                 eph_clean();
1203
1204                 $last10 = $t;
1205         }
1206
1207         if ($main::systime - 3600 > $last_hour) {
1208                 $last_hour = $main::systime;
1209         }
1210 }
1211
1212 #
1213 # finish up a pc context
1214 #
1215
1216 #
1217 # some active measures
1218 #
1219
1220 sub send_dx_spot
1221 {
1222         my $self = shift;
1223         my $line = shift;
1224         my @dxchan = DXChannel->get_all();
1225         my $dxchan;
1226
1227         # send it if it isn't the except list and isn't isolated and still has a hop count
1228         # taking into account filtering and so on
1229         foreach $dxchan (@dxchan) {
1230                 next if $dxchan == $me;
1231                 next if $dxchan == $self && $self->is_node;
1232                 $dxchan->dx_spot($line, $self->{isolate}, @_, $self->{call});
1233         }
1234 }
1235
1236 sub dx_spot
1237 {
1238         my $self = shift;
1239         my $line = shift;
1240         my $isolate = shift;
1241         my ($filter, $hops);
1242
1243         if ($self->{spotsfilter}) {
1244                 ($filter, $hops) = $self->{spotsfilter}->it(@_);
1245                 return unless $filter;
1246         }
1247         send_prot_line($self, $filter, $hops, $isolate, $line);
1248 }
1249
1250 sub send_prot_line
1251 {
1252         my ($self, $filter, $hops, $isolate, $line) = @_;
1253         my $routeit;
1254
1255         if ($hops) {
1256                 $routeit = $line;
1257                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1258         } else {
1259                 $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
1260                 return unless $routeit;
1261         }
1262         if ($filter) {
1263                 $self->send($routeit);
1264         } else {
1265                 $self->send($routeit) unless $self->{isolate} || $isolate;
1266         }
1267 }
1268
1269
1270 sub send_wwv_spot
1271 {
1272         my $self = shift;
1273         my $line = shift;
1274         my @dxchan = DXChannel->get_all();
1275         my $dxchan;
1276         my ($wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1277         my @dxcc = Prefix::extract($_[6]);
1278         if (@dxcc > 0) {
1279                 $wwv_dxcc = $dxcc[1]->dxcc;
1280                 $wwv_itu = $dxcc[1]->itu;
1281                 $wwv_cq = $dxcc[1]->cq;
1282         }
1283         @dxcc = Prefix::extract($_[7]);
1284         if (@dxcc > 0) {
1285                 $org_dxcc = $dxcc[1]->dxcc;
1286                 $org_itu = $dxcc[1]->itu;
1287                 $org_cq = $dxcc[1]->cq;
1288         }
1289
1290         # send it if it isn't the except list and isn't isolated and still has a hop count
1291         # taking into account filtering and so on
1292         foreach $dxchan (@dxchan) {
1293                 next if $dxchan == $me;
1294                 next if $dxchan == $self && $self->is_node;
1295                 my $routeit;
1296                 my ($filter, $hops);
1297
1298                 $dxchan->wwv($line, $self->{isolate}, @_, $self->{call}, $wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq);
1299         }
1300
1301 }
1302
1303 sub wwv
1304 {
1305         my $self = shift;
1306         my $line = shift;
1307         my $isolate = shift;
1308         my ($filter, $hops);
1309
1310         if ($self->{wwvfilter}) {
1311                 ($filter, $hops) = $self->{wwvfilter}->it(@_);
1312                 return unless $filter;
1313         }
1314         send_prot_line($self, $filter, $hops, $isolate, $line)
1315 }
1316
1317 sub send_wcy_spot
1318 {
1319         my $self = shift;
1320         my $line = shift;
1321         my @dxchan = DXChannel->get_all();
1322         my $dxchan;
1323         my ($wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1324         my @dxcc = Prefix::extract($_[10]);
1325         if (@dxcc > 0) {
1326                 $wcy_dxcc = $dxcc[1]->dxcc;
1327                 $wcy_itu = $dxcc[1]->itu;
1328                 $wcy_cq = $dxcc[1]->cq;
1329         }
1330         @dxcc = Prefix::extract($_[11]);
1331         if (@dxcc > 0) {
1332                 $org_dxcc = $dxcc[1]->dxcc;
1333                 $org_itu = $dxcc[1]->itu;
1334                 $org_cq = $dxcc[1]->cq;
1335         }
1336
1337         # send it if it isn't the except list and isn't isolated and still has a hop count
1338         # taking into account filtering and so on
1339         foreach $dxchan (@dxchan) {
1340                 next if $dxchan == $me;
1341                 next if $dxchan == $self;
1342
1343                 $dxchan->wcy($line, $self->{isolate}, @_, $self->{call}, $wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq);
1344         }
1345 }
1346
1347 sub wcy
1348 {
1349         my $self = shift;
1350         my $line = shift;
1351         my $isolate = shift;
1352         my ($filter, $hops);
1353
1354         if ($self->{wcyfilter}) {
1355                 ($filter, $hops) = $self->{wcyfilter}->it(@_);
1356                 return unless $filter;
1357         }
1358         send_prot_line($self, $filter, $hops, $isolate, $line) if $self->is_clx || $self->is_spider || $self->is_dxnet;
1359 }
1360
1361 # send an announce
1362 sub send_announce
1363 {
1364         my $self = shift;
1365         my $line = shift;
1366         my @dxchan = DXChannel->get_all();
1367         my $dxchan;
1368         my $target;
1369         my $to = 'To ';
1370         my $text = unpad($_[2]);
1371
1372         if ($_[3] eq '*') {     # sysops
1373                 $target = "SYSOP";
1374         } elsif ($_[3] gt ' ') { # speciality list handling
1375                 my ($name) = split /\./, $_[3];
1376                 $target = "$name"; # put the rest in later (if bothered)
1377         }
1378
1379         if ($_[5] eq '1') {
1380                 $target = "WX";
1381                 $to = '';
1382         }
1383         $target = "ALL" if !$target;
1384
1385
1386         # obtain country codes etc
1387         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1388         my @dxcc = Prefix::extract($_[0]);
1389         if (@dxcc > 0) {
1390                 $ann_dxcc = $dxcc[1]->dxcc;
1391                 $ann_itu = $dxcc[1]->itu;
1392                 $ann_cq = $dxcc[1]->cq;
1393         }
1394         @dxcc = Prefix::extract($_[4]);
1395         if (@dxcc > 0) {
1396                 $org_dxcc = $dxcc[1]->dxcc;
1397                 $org_itu = $dxcc[1]->itu;
1398                 $org_cq = $dxcc[1]->cq;
1399         }
1400
1401         if ($self->{inannfilter}) {
1402                 my ($filter, $hops) =
1403                         $self->{inannfilter}->it(@_, $self->{call},
1404                                                                          $ann_dxcc, $ann_itu, $ann_cq,
1405                                                                          $org_dxcc, $org_itu, $org_cq);
1406                 unless ($filter) {
1407                         dbg("PCPROT: Rejected by input announce filter") if isdbg('chanerr');
1408                         return;
1409                 }
1410         }
1411
1412         Log('ann', $target, $_[0], $text);
1413
1414         # send it if it isn't the except list and isn't isolated and still has a hop count
1415         # taking into account filtering and so on
1416         foreach $dxchan (@dxchan) {
1417                 next if $dxchan == $me;
1418                 next if $dxchan == $self && $self->is_node;
1419                 $dxchan->announce($line, $self->{isolate}, $to, $target, $text, @_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1420         }
1421 }
1422
1423 sub announce
1424 {
1425         my $self = shift;
1426         my $line = shift;
1427         my $isolate = shift;
1428         my $to = shift;
1429         my $target = shift;
1430         my $text = shift;
1431         my ($filter, $hops);
1432
1433         if ($self->{annfilter}) {
1434                 ($filter, $hops) = $self->{annfilter}->it(@_);
1435                 return unless $filter;
1436         }
1437         send_prot_line($self, $filter, $hops, $isolate, $line) unless $_[1] eq $main::mycall;
1438 }
1439
1440
1441 sub send_local_config
1442 {
1443         my $self = shift;
1444         my $n;
1445         my @nodes;
1446         my @localnodes;
1447         my @remotenodes;
1448
1449         dbg('DXProt::send_local_config') if isdbg('trace');
1450
1451         # send our nodes
1452         if ($self->{isolate}) {
1453                 @localnodes = ( $main::routeroot );
1454         } else {
1455                 # create a list of all the nodes that are not connected to this connection
1456                 # and are not themselves isolated, this to make sure that isolated nodes
1457         # don't appear outside of this node
1458                 my @dxchan = grep { $_->call ne $main::mycall && $_ != $self && !$_->{isolate} } DXChannel::get_all_nodes();
1459                 @localnodes = map { my $r = Route::Node::get($_->{call}); $r ? $r : () } @dxchan if @dxchan;
1460                 my @intcalls = map { $_->nodes } @localnodes if @localnodes;
1461                 my $ref = Route::Node::get($self->{call});
1462                 my @rnodes = $ref->nodes;
1463                 for my $n (@intcalls) {
1464                         push @remotenodes, Route::Node::get($n) unless grep $n eq $_, @rnodes;
1465                 }
1466                 unshift @localnodes, $main::routeroot;
1467         }
1468
1469         send_route($self, \&pc19, scalar(@localnodes)+scalar(@remotenodes), @localnodes, @remotenodes);
1470
1471         # get all the users connected on the above nodes and send them out
1472         foreach $n (@localnodes, @remotenodes) {
1473                 if ($n) {
1474                         send_route($self, \&pc16, 1, $n, map {my $r = Route::User::get($_); $r ? ($r) : ()} $n->users);
1475                 } else {
1476                         dbg("sent a null value") if isdbg('chanerr');
1477                 }
1478         }
1479 }
1480
1481 #
1482 # route a message down an appropriate interface for a callsign
1483 #
1484 # is called route(to, pcline);
1485 #
1486 sub route
1487 {
1488         my ($self, $call, $line) = @_;
1489
1490         if (ref $self && $call eq $self->{call}) {
1491                 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
1492                 return;
1493         }
1494
1495         # always send it down the local interface if available
1496         my $dxchan = DXChannel->get($call);
1497         unless ($dxchan) {
1498                 my $cl = Route::get($call);
1499                 $dxchan = $cl->dxchan if $cl;
1500                 if (ref $dxchan) {
1501                         if (ref $self && $dxchan eq $self) {
1502                                 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
1503                                 return;
1504                         }
1505                 }
1506         }
1507         if ($dxchan) {
1508                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1509                 if ($routeit) {
1510                         $dxchan->send($routeit) unless $dxchan == $me;
1511                 }
1512         } else {
1513                 dbg("PCPROT: No route available, dropped") if isdbg('chanerr');
1514         }
1515 }
1516
1517 # broadcast a message to all clusters taking into account isolation
1518 # [except those mentioned after buffer]
1519 sub broadcast_ak1a
1520 {
1521         my $s = shift;                          # the line to be rebroadcast
1522         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1523         my @dxchan = DXChannel::get_all_nodes();
1524         my $dxchan;
1525
1526         # send it if it isn't the except list and isn't isolated and still has a hop count
1527         foreach $dxchan (@dxchan) {
1528                 next if grep $dxchan == $_, @except;
1529                 next if $dxchan == $me;
1530
1531                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1532                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1533         }
1534 }
1535
1536 # broadcast a message to all clusters ignoring isolation
1537 # [except those mentioned after buffer]
1538 sub broadcast_all_ak1a
1539 {
1540         my $s = shift;                          # the line to be rebroadcast
1541         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1542         my @dxchan = DXChannel::get_all_nodes();
1543         my $dxchan;
1544
1545         # send it if it isn't the except list and isn't isolated and still has a hop count
1546         foreach $dxchan (@dxchan) {
1547                 next if grep $dxchan == $_, @except;
1548                 next if $dxchan == $me;
1549
1550                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1551                 $dxchan->send($routeit);
1552         }
1553 }
1554
1555 # broadcast to all users
1556 # storing the spot or whatever until it is in a state to receive it
1557 sub broadcast_users
1558 {
1559         my $s = shift;                          # the line to be rebroadcast
1560         my $sort = shift;           # the type of transmission
1561         my $fref = shift;           # a reference to an object to filter on
1562         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1563         my @dxchan = DXChannel::get_all_users();
1564         my $dxchan;
1565         my @out;
1566
1567         foreach $dxchan (@dxchan) {
1568                 next if grep $dxchan == $_, @except;
1569                 push @out, $dxchan;
1570         }
1571         broadcast_list($s, $sort, $fref, @out);
1572 }
1573
1574 # broadcast to a list of users
1575 sub broadcast_list
1576 {
1577         my $s = shift;
1578         my $sort = shift;
1579         my $fref = shift;
1580         my $dxchan;
1581
1582         foreach $dxchan (@_) {
1583                 my $filter = 1;
1584                 next if $dxchan == $me;
1585
1586                 if ($sort eq 'dx') {
1587                     next unless $dxchan->{dx};
1588                         ($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
1589                         next unless $filter;
1590                 }
1591                 next if $sort eq 'ann' && !$dxchan->{ann} && $s !~ /^To\s+LOCAL\s+de\s+(?:$main::myalias|$main::mycall)/i;
1592                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1593                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1594                 next if $sort eq 'wx' && !$dxchan->{wx};
1595
1596                 $s =~ s/\a//og unless $dxchan->{beep};
1597
1598                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1599                         $dxchan->send($s);
1600                 } else {
1601                         $dxchan->delay($s);
1602                 }
1603         }
1604 }
1605
1606
1607 #
1608 # obtain the hops from the list for this callsign and pc no
1609 #
1610
1611 sub get_hops
1612 {
1613         my $pcno = shift;
1614         my $hops = $DXProt::hopcount{$pcno};
1615         $hops = $DXProt::def_hopcount if !$hops;
1616         return "H$hops";
1617 }
1618
1619 #
1620 # adjust the hop count on a per node basis using the user loadable
1621 # hop table if available or else decrement an existing one
1622 #
1623
1624 sub adjust_hops
1625 {
1626         my $self = shift;
1627         my $s = shift;
1628         my $call = $self->{call};
1629         my $hops;
1630
1631         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1632                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1633                 confess "$call called adjust_hops with '$s'" unless $pcno;
1634                 my $ref = $nodehops{$call} if %nodehops;
1635                 if ($ref) {
1636                         my $newhops = $ref->{$pcno};
1637                         return "" if defined $newhops && $newhops == 0;
1638                         $newhops = $ref->{default} unless $newhops;
1639                         return "" if defined $newhops && $newhops == 0;
1640                         $newhops = $hops if !$newhops;
1641                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1642                 } else {
1643                         # simply decrement it
1644                         $hops--;
1645                         return "" if !$hops;
1646                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1647                 }
1648         }
1649         return $s;
1650 }
1651
1652 #
1653 # load hop tables
1654 #
1655 sub load_hops
1656 {
1657         my $self = shift;
1658         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1659         do "$main::data/hop_table.pl";
1660         return $@ if $@;
1661         return 0;
1662 }
1663
1664
1665 # add a ping request to the ping queues
1666 sub addping
1667 {
1668         my ($from, $to) = @_;
1669         my $ref = $pings{$to} || [];
1670         my $r = {};
1671         $r->{call} = $from;
1672         $r->{t} = [ gettimeofday ];
1673         route(undef, $to, pc51($to, $main::mycall, 1));
1674         push @$ref, $r;
1675         $pings{$to} = $ref;
1676 }
1677
1678 sub process_rcmd
1679 {
1680         my ($self, $tonode, $fromnode, $user, $cmd) = @_;
1681         if ($tonode eq $main::mycall) {
1682                 my $ref = DXUser->get_current($fromnode);
1683                 my $cref = Route::Node::get($fromnode);
1684                 Log('rcmd', 'in', $ref->{priv}, $fromnode, $cmd);
1685                 if ($cmd !~ /^\s*rcmd/i && $cref && $ref && $cref->call eq $ref->homenode) { # not allowed to relay RCMDS!
1686                         if ($ref->{priv}) {             # you have to have SOME privilege, the commands have further filtering
1687                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1688                                 my $oldpriv = $self->{priv};
1689                                 $self->{priv} = $ref->{priv}; # assume the user's privilege level
1690                                 my @in = (DXCommandmode::run_cmd($self, $cmd));
1691                                 $self->{priv} = $oldpriv;
1692                                 $self->send_rcmd_reply($main::mycall, $fromnode, $user, @in);
1693                                 delete $self->{remotecmd};
1694                         } else {
1695                                 $self->send_rcmd_reply($main::mycall, $fromnode, $user, "sorry...!");
1696                         }
1697                 } else {
1698                         $self->send_rcmd_reply($main::mycall, $fromnode, $user, "your attempt is logged, Tut tut tut...!");
1699                 }
1700         } else {
1701                 my $ref = DXUser->get_current($tonode);
1702                 if ($ref && $ref->is_clx) {
1703                         $self->route($tonode, pc84($fromnode, $tonode, $user, $cmd));
1704                 } else {
1705                         $self->route($tonode, pc34($fromnode, $tonode, $cmd));
1706                 }
1707         }
1708 }
1709
1710 sub process_rcmd_reply
1711 {
1712         my ($self, $tonode, $fromnode, $user, $line) = @_;
1713         if ($tonode eq $main::mycall) {
1714                 my $s = $rcmds{$fromnode};
1715                 if ($s) {
1716                         my $dxchan = DXChannel->get($s->{call});
1717                         my $ref = $user eq $tonode ? $dxchan : (DXChannel->get($user) || $dxchan);
1718                         $ref->send($line) if $ref;
1719                         delete $rcmds{$fromnode} if !$dxchan;
1720                 } else {
1721                         # send unsolicited ones to the sysop
1722                         my $dxchan = DXChannel->get($main::myalias);
1723                         $dxchan->send($line) if $dxchan;
1724                 }
1725         } else {
1726                 my $ref = DXUser->get_current($tonode);
1727                 if ($ref && $ref->is_clx) {
1728                         $self->route($tonode, pc85($fromnode, $tonode, $user, $line));
1729                 } else {
1730                         $self->route($tonode, pc35($fromnode, $tonode, $line));
1731                 }
1732         }
1733 }
1734
1735 sub send_rcmd_reply
1736 {
1737         my $self = shift;
1738         my $tonode = shift;
1739         my $fromnode = shift;
1740         my $user = shift;
1741         while (@_) {
1742                 my $line = shift;
1743                 $line =~ s/\s*$//;
1744                 Log('rcmd', 'out', $fromnode, $line);
1745                 if ($self->is_clx) {
1746                         $self->send(pc85($main::mycall, $fromnode, $user, "$main::mycall:$line"));
1747                 } else {
1748                         $self->send(pc35($main::mycall, $fromnode, "$main::mycall:$line"));
1749                 }
1750         }
1751 }
1752
1753 # add a rcmd request to the rcmd queues
1754 sub addrcmd
1755 {
1756         my ($self, $to, $cmd) = @_;
1757
1758         my $r = {};
1759         $r->{call} = $self->{call};
1760         $r->{t} = $main::systime;
1761         $r->{cmd} = $cmd;
1762         $rcmds{$to} = $r;
1763
1764         my $ref = Route::Node::get($to);
1765         my $dxchan = $ref->dxchan;
1766         if ($dxchan && $dxchan->is_clx) {
1767                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1768         } else {
1769                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1770         }
1771 }
1772
1773 sub disconnect
1774 {
1775         my $self = shift;
1776         my $pc39flag = shift;
1777         my $call = $self->call;
1778
1779         return if $self->{disconnecting}++;
1780
1781         unless ($pc39flag && $pc39flag == 1) {
1782                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1783         }
1784
1785         # do routing stuff
1786         my $node = Route::Node::get($call);
1787         my @rout;
1788         if ($node) {
1789                 @rout = $node->del($main::routeroot);
1790         }
1791
1792         # unbusy and stop and outgoing mail
1793         my $mref = DXMsg::get_busy($call);
1794         $mref->stop_msg($call) if $mref;
1795
1796         # broadcast to all other nodes that all the nodes connected to via me are gone
1797         unless ($pc39flag && $pc39flag == 2) {
1798                 $self->route_pc21(@rout) if @rout;
1799         }
1800
1801         # remove outstanding pings
1802         delete $pings{$call};
1803
1804         # I was the last node visited
1805     $self->user->node($main::mycall);
1806
1807         # send info to all logged in thingies
1808         $self->tell_login('logoutn');
1809
1810         Log('DXProt', $call . " Disconnected");
1811
1812         $self->SUPER::disconnect;
1813 }
1814
1815
1816 #
1817 # send a talk message to this thingy
1818 #
1819 sub talk
1820 {
1821         my ($self, $from, $to, $via, $line, $origin) = @_;
1822
1823         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1824         $self->send(DXProt::pc10($from, $to, $via, $line, $origin));
1825         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line) unless $origin && $origin ne $main::mycall;
1826 }
1827
1828 # send it if it isn't the except list and isn't isolated and still has a hop count
1829 # taking into account filtering and so on
1830 sub send_route
1831 {
1832         my $self = shift;
1833         my $generate = shift;
1834         my $no = shift;     # the no of things to filter on
1835         my $routeit;
1836         my ($filter, $hops);
1837         my @rin;
1838
1839         for (; @_ && $no; $no--) {
1840                 my $r = shift;
1841
1842                 if (!$self->{isolate} && $self->{routefilter}) {
1843                         $filter = undef;
1844                         if ($r) {
1845                                 ($filter, $hops) = $self->{routefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq);
1846                                 if ($filter) {
1847                                         push @rin, $r;
1848                                 } else {
1849                                         dbg("DXPROT: $self->{call}/" . $r->call . " rejected by output filter") if isdbg('chanerr');
1850                                 }
1851                         } else {
1852                                 dbg("was sent a null value") if isdbg('chanerr');
1853                         }
1854                 } else {
1855                         push @rin, $r unless $self->{isolate} && $r->call ne $main::mycall;
1856                 }
1857         }
1858         if (@rin) {
1859                 foreach my $line (&$generate(@rin, @_)) {
1860                         if ($hops) {
1861                                 $routeit = $line;
1862                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1863                         } else {
1864                                 $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
1865                                 next unless $routeit;
1866                         }
1867                         $self->send($routeit);
1868                 }
1869         }
1870 }
1871
1872 sub broadcast_route
1873 {
1874         my $self = shift;
1875         my $generate = shift;
1876         my @dxchan = DXChannel::get_all_nodes();
1877         my $dxchan;
1878         my $line;
1879
1880         unless ($self->{isolate}) {
1881                 foreach $dxchan (@dxchan) {
1882                         next if $dxchan == $self;
1883                         next if $dxchan == $me;
1884                         $dxchan->send_route($generate, @_);
1885                 }
1886         }
1887 }
1888
1889 sub route_pc16
1890 {
1891         my $self = shift;
1892         broadcast_route($self, \&pc16, 1, @_);
1893 }
1894
1895 sub route_pc17
1896 {
1897         my $self = shift;
1898         broadcast_route($self, \&pc17, 1, @_);
1899 }
1900
1901 sub route_pc19
1902 {
1903         my $self = shift;
1904         broadcast_route($self, \&pc19, scalar @_, @_);
1905 }
1906
1907 sub route_pc21
1908 {
1909         my $self = shift;
1910         broadcast_route($self, \&pc21, scalar @_, @_);
1911 }
1912
1913 sub route_pc24
1914 {
1915         my $self = shift;
1916         broadcast_route($self, \&pc24, 1, @_);
1917 }
1918
1919 sub route_pc41
1920 {
1921         my $self = shift;
1922         broadcast_route($self, \&pc41, 1, @_);
1923 }
1924
1925 sub route_pc50
1926 {
1927         my $self = shift;
1928         broadcast_route($self, \&pc50, 1, @_);
1929 }
1930
1931 sub in_filter_route
1932 {
1933         my $self = shift;
1934         my $r = shift;
1935         my ($filter, $hops) = (1, 1);
1936
1937         if ($self->{inroutefilter}) {
1938                 ($filter, $hops) = $self->{inroutefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq);
1939                 dbg("PCPROT: $self->{call}/" . $r->call . ' rejected by in_filter_route') if !$filter && isdbg('chanerr');
1940         }
1941         return $filter;
1942 }
1943
1944 sub eph_dup
1945 {
1946         my $s = shift;
1947         my $r;
1948
1949         # chop the end off
1950         $s =~ s/\^H\d\d?\^?\~?$//;
1951         $r = 1 if exists $eph{$s};    # pump up the dup if it keeps circulating
1952         $eph{$s} = $main::systime;
1953         return $r;
1954 }
1955
1956 sub eph_del_regex
1957 {
1958         my $regex = shift;
1959         my ($key, $val);
1960         while (($key, $val) = each %eph) {
1961                 if ($key =~ m{$regex}) {
1962                         delete $eph{$key};
1963                 }
1964         }
1965 }
1966
1967 sub eph_clean
1968 {
1969         my ($key, $val);
1970
1971         while (($key, $val) = each %eph) {
1972                 if ($main::systime - $val > 180) {
1973                         delete $eph{$key};
1974                 }
1975         }
1976 }
1977
1978 1;
1979 __END__