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