perl/DXProt.pm

   1 #!/usr/bin/perl
   2 #
   3 # This module impliments the protocal mode for a dx cluster
   4 #
   5 # Copyright (c) 1998 Dirk Koopman G1TLH
   6 #
   7 # $Id$
   8 #
   9
  10 package DXProt;
  11
  12 @ISA = qw(DXChannel);
  13
  14 use DXUtil;
  15 use DXChannel;
  16 use DXUser;
  17 use DXM;
  18 use DXProtVars;
  19 use DXCommandmode;
  20 use DXLog;
  21 use Spot;
  22 use DXProtout;
  23 use DXDebug;
  24 use Filter;
  25 use Local;
  26 use DXDb;
  27 use AnnTalk;
  28 use Geomag;
  29 use WCY;
  30 use Time::HiRes qw(gettimeofday tv_interval);
  31 use BadWords;
  32 use DXHash;
  33 use Route;
  34 use Route::Node;
  35 use Script;
  36
  37 use strict;
  38
  39 use vars qw($VERSION $BRANCH);
  40 $VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
  41 $BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/ ) || 0;
  42 $main::build += $VERSION;
  43 $main::branch += $BRANCH;
  44
  45 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
  46                         $last_hour $last10 %eph  %pings %rcmds $ann_to_talk
  47                         %nodehops $baddx $badspotter $badnode $censorpc $rspfcheck
  48                         $allowzero $decode_dk0wcy $send_opernam @checklist);
  49
  50 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  51 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  52
  53 $last_hour = time;                              # last time I did an hourly periodic update
  54 %pings = ();                    # outstanding ping requests outbound
  55 %rcmds = ();                    # outstanding rcmd requests outbound
  56 %nodehops = ();                 # node specific hop control
  57 $censorpc = 1;                                  # Do a BadWords::check on text fields and reject things
  58                                                                 # loads of 'bad things'
  59 $baddx = new DXHash "baddx";
  60 $badspotter = new DXHash "badspotter";
  61 $badnode = new DXHash "badnode";
  62 $last10 = $last_pc50 = time;
  63 $ann_to_talk = 1;
  64 $rspfcheck = 1;
  65 $eph_restime = 180;
  66 $eph_info_restime = 60*60;
  67 $eph_pc34_restime = 30;
  68
  69 @checklist =
  70 (
  71  [ qw(c c m bp bc c) ],                 # pc10
  72  [ qw(f m d t m c c h) ],               # pc11
  73  [ qw(c bc m bp bm p h) ],              # pc12
  74  [ qw(c h) ],                                   #
  75  [ qw(c h) ],                                   #
  76  [ qw(c m h) ],                                 #
  77  undef ,                                                # pc16 has to be validated manually
  78  [ qw(c c h) ],                                 # pc17
  79  [ qw(m n) ],                                   # pc18
  80  undef ,                                                # pc19 has to be validated manually
  81  undef ,                                                # pc20 no validation
  82  [ qw(c m h) ],                                 # pc21
  83  undef ,                                                # pc22 no validation
  84  [ qw(d n n n n m c c h) ],             # pc23
  85  [ qw(c p h) ],                                 # pc24
  86  [ qw(c c n n) ],                               # pc25
  87  [ qw(f m d t m c c bc) ],              # pc26
  88  [ qw(d n n n n m c c bc) ],    # pc27
  89  [ qw(c c m c d t p m bp n p bp bc) ], # pc28
  90  [ qw(c c n m) ],                               # pc29
  91  [ qw(c c n) ],                                 # pc30
  92  [ qw(c c n) ],                                 # pc31
  93  [ qw(c c n) ],                                 # pc32
  94  [ qw(c c n) ],                                 # pc33
  95  [ qw(c c m) ],                                 # pc34
  96  [ qw(c c m) ],                                 # pc35
  97  [ qw(c c m) ],                                 # pc36
  98  [ qw(c c n m) ],                               # pc37
  99  undef,                                                 # pc38 not interested
 100  [ qw(c m) ],                                   # pc39
 101  [ qw(c c m p n) ],                             # pc40
 102  [ qw(c n m h) ],                               # pc41
 103  [ qw(c c n) ],                                 # pc42
 104  undef,                                                 # pc43 don't handle it
 105  [ qw(c c n m m c) ],                   # pc44
 106  [ qw(c c n m) ],                               # pc45
 107  [ qw(c c n) ],                                 # pc46
 108  undef,                                                 # pc47
 109  undef,                                                 # pc48
 110  [ qw(c m h) ],                                 # pc49
 111  [ qw(c n h) ],                                 # pc50
 112  [ qw(c c n) ],                                 # pc51
 113  undef,
 114  undef,
 115  undef,
 116  undef,
 117  undef,
 118  undef,
 119  undef,
 120  undef,
 121  undef,                                                 # pc60
 122  undef,
 123  undef,
 124  undef,
 125  undef,
 126  undef,
 127  undef,
 128  undef,
 129  undef,
 130  undef,
 131  undef,                                                 # pc70
 132  undef,
 133  undef,
 134  [ qw(d n n n n n n m m m c c h) ],     # pc73
 135  undef,
 136  undef,
 137  undef,
 138  undef,
 139  undef,
 140  undef,
 141  undef,                                                 # pc80
 142  undef,
 143  undef,
 144  undef,
 145  [ qw(c c c m) ],                               # pc84
 146  [ qw(c c c m) ],                               # pc85
 147 );
 148
 149 # use the entry in the check list to check the field list presented
 150 # return OK if line NOT in check list (for now)
 151 sub check
 152 {
 153         my $n = shift;
 154         $n -= 10;
 155         return 0 if $n < 0 || $n > @checklist;
 156         my $ref = $checklist[$n];
 157         return 0 unless ref $ref;
 158
 159         my $i;
 160         shift;    # not interested in the first field
 161         for ($i = 0; $i < @$ref; $i++) {
 162                 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
 163                 return 0 unless $act;
 164                 next if $blank && $_[$i] =~ /^[ \*]$/;
 165                 if ($act eq 'c') {
 166                         return $i+1 unless is_callsign($_[$i]);
 167                 } elsif ($act eq 'm') {
 168                         return $i+1 unless is_pctext($_[$i]);
 169                 } elsif ($act eq 'p') {
 170                         return $i+1 unless is_pcflag($_[$i]);
 171                 } elsif ($act eq 'f') {
 172                         return $i+1 unless is_freq($_[$i]);
 173                 } elsif ($act eq 'n') {
 174                         return $i+1 unless $_[$i] =~ /^[\d ]+$/;
 175                 } elsif ($act eq 'h') {
 176                         return $i+1 unless $_[$i] =~ /^H\d\d?$/;
 177                 } elsif ($act eq 'd') {
 178                         return $i+1 unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
 179                 } elsif ($act eq 't') {
 180                         return $i+1 unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
 181                 }
 182         }
 183         return 0;
 184 }
 185
 186 sub init
 187 {
 188         my $user = DXUser->get($main::mycall);
 189         $DXProt::myprot_version += $main::version*100;
 190         $main::me = DXProt->new($main::mycall, 0, $user);
 191         $main::me->{here} = 1;
 192         $main::me->{state} = "indifferent";
 193         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
 194         confess $@ if $@;
 195         $main::me->{sort} = 'S';    # S for spider
 196         $main::me->{priv} = 9;
 197         $main::me->{metric} = 0;
 198         $main::me->{pingave} = 0;
 199
 200 #       $Route::Node::me->adddxchan($main::me);
 201 }
 202
 203 #
 204 # obtain a new connection this is derived from dxchannel
 205 #
 206
 207 sub new
 208 {
 209         my $self = DXChannel::alloc(@_);
 210
 211         # add this node to the table, the values get filled in later
 212         my $pkg = shift;
 213         my $call = shift;
 214         $main::routeroot->add($call, '5000', Route::here(1)) if $call ne $main::mycall;
 215
 216         return $self;
 217 }
 218
 219 # this is how a pc connection starts (for an incoming connection)
 220 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
 221 # all the crap that comes between).
 222 sub start
 223 {
 224         my ($self, $line, $sort) = @_;
 225         my $call = $self->{call};
 226         my $user = $self->{user};
 227
 228         # log it
 229         my $host = $self->{conn}->{peerhost} || "unknown";
 230         Log('DXProt', "$call connected from $host");
 231
 232         # remember type of connection
 233         $self->{consort} = $line;
 234         $self->{outbound} = $sort eq 'O';
 235         my $priv = $user->priv;
 236         $priv = $user->priv(1) unless $priv;
 237         $self->{priv} = $priv;     # other clusters can always be 'normal' users
 238         $self->{lang} = $user->lang || 'en';
 239         $self->{isolate} = $user->{isolate};
 240         $self->{consort} = $line;       # save the connection type
 241         $self->{here} = 1;
 242         $self->{width} = 80;
 243
 244         # sort out registration
 245         $self->{registered} = 1;
 246
 247         # get the output filters
 248         $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
 249         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
 250         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
 251         $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
 252         $self->{routefilter} = Filter::read_in('route', $call, 0) || Filter::read_in('route', 'node_default', 0) unless $self->{isolate} ;
 253
 254
 255         # get the INPUT filters (these only pertain to Clusters)
 256         $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
 257         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
 258         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
 259         $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);
 260         $self->{inroutefilter} = Filter::read_in('route', $call, 1) || Filter::read_in('route', 'node_default', 1) unless $self->{isolate};
 261
 262         # set unbuffered and no echo
 263         $self->send_now('B',"0");
 264         $self->send_now('E',"0");
 265         $self->conn->echo(0) if $self->conn->can('echo');
 266
 267         # ping neighbour node stuff
 268         my $ping = $user->pingint;
 269         $ping = 5*60 unless defined $ping;
 270         $self->{pingint} = $ping;
 271         $self->{nopings} = $user->nopings || 2;
 272         $self->{pingtime} = [ ];
 273         $self->{pingave} = 999;
 274         $self->{metric} ||= 100;
 275         $self->{lastping} = $main::systime;
 276
 277         # send initialisation string
 278         unless ($self->{outbound}) {
 279                 $self->send(pc18());
 280         }
 281
 282         $self->state('init');
 283         $self->{pc50_t} = $main::systime;
 284
 285         # send info to all logged in thingies
 286         $self->tell_login('loginn');
 287
 288         # run a script send the output to the debug file
 289         my $script = new Script(lc $call) || new Script('node_default');
 290         $script->run($self) if $script;
 291 }
 292
 293 #
 294 # This is the normal pcxx despatcher
 295 #
 296 sub normal
 297 {
 298         my ($self, $line) = @_;
 299         my @field = split /\^/, $line;
 300         return unless @field;
 301
 302         pop @field if $field[-1] eq '~';
 303
 304 #       print join(',', @field), "\n";
 305
 306
 307         # process PC frames, this will fail unless the frame starts PCnn
 308         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 309         return unless $pcno;
 310         return if $pcno < 10 || $pcno > 99;
 311
 312         # check for and dump bad protocol messages
 313         my $n = check($pcno, @field);
 314         if ($n) {
 315                 dbg("PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")") if isdbg('chanerr');
 316                 return;
 317         }
 318
 319         # local processing 1
 320         my $pcr;
 321         eval {
 322                 $pcr = Local::pcprot($self, $pcno, @field);
 323         };
 324 #       dbg("Local::pcprot error $@") if isdbg('local') if $@;
 325         return if $pcr;
 326
 327  SWITCH: {
 328                 if ($pcno == 10) {              # incoming talk
 329
 330                         # rsfp check
 331                         return if $rspfcheck and !$self->rspfcheck(0, $field[6], $field[1]);
 332
 333                         # will we allow it at all?
 334                         if ($censorpc) {
 335                                 my @bad;
 336                                 if (@bad = BadWords::check($field[3])) {
 337                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 338                                         return;
 339                                 }
 340                         }
 341
 342                         # is it for me or one of mine?
 343                         my ($from, $to, $via, $call, $dxchan);
 344                         $from = $field[1];
 345                         if ($field[5] gt ' ') {
 346                                 $via = $field[2];
 347                                 $to = $field[5];
 348                         } else {
 349                                 $to = $field[2];
 350                         }
 351
 352                         # if this is a 'nodx' node then ignore it
 353                         if ($badnode->in($field[6]) || ($via && $badnode->in($via))) {
 354                                 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
 355                                 return;
 356                         }
 357
 358                         # if this is a 'bad spotter' user then ignore it
 359                         my $nossid = $from;
 360                         $nossid =~ s/-\d+$//;
 361                         if ($badspotter->in($nossid)) {
 362                                 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
 363                                 return;
 364                         }
 365
 366                         # if we are converting announces to talk is it a dup?
 367                         if ($ann_to_talk) {
 368                                 if (AnnTalk::is_talk_candidate($from, $field[3]) && AnnTalk::dup($from, $to, $field[3])) {
 369                                         dbg("DXPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
 370                                         return;
 371                                 }
 372                         }
 373
 374                         # it is here and logged on
 375                         $dxchan = DXChannel->get($main::myalias) if $to eq $main::mycall;
 376                         $dxchan = DXChannel->get($to) unless $dxchan;
 377                         if ($dxchan && $dxchan->is_user) {
 378                                 $field[3] =~ s/\%5E/^/g;
 379                                 $dxchan->talk($from, $to, $via, $field[3]);
 380                                 return;
 381                         }
 382
 383                         # is it elsewhere, visible on the cluster via the to address?
 384                         # note: this discards the via unless the to address is on
 385                         # the via address
 386                         my ($ref, $vref);
 387                         if ($ref = Route::get($to)) {
 388                                 $vref = Route::Node::get($via) if $via;
 389                                 $vref = undef unless $vref && grep $to eq $_, $vref->users;
 390                                 $ref->dxchan->talk($from, $to, $vref ? $via : undef, $field[3], $field[6]);
 391                                 return;
 392                         }
 393
 394                         # not visible here, send a message of condolence
 395                         $vref = undef;
 396                         $ref = Route::get($from);
 397                         $vref = $ref = Route::Node::get($field[6]) unless $ref;
 398                         if ($ref) {
 399                                 $dxchan = $ref->dxchan;
 400                                 $dxchan->talk($main::mycall, $from, $vref ? $vref->call : undef, $dxchan->msg('talknh', $to) );
 401                         }
 402                         return;
 403                 }
 404
 405                 if ($pcno == 11 || $pcno == 26) { # dx spot
 406
 407                         # route 'foreign' pc26s
 408                         if ($pcno == 26) {
 409                                 if ($field[7] ne $main::mycall) {
 410                                         $self->route($field[7], $line);
 411                                         return;
 412                                 }
 413                         }
 414
 415                         # rsfp check
 416 #                       return if $rspfcheck and !$self->rspfcheck(1, $field[7], $field[6]);
 417
 418                         # if this is a 'nodx' node then ignore it
 419                         if ($badnode->in($field[7])) {
 420                                 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
 421                                 return;
 422                         }
 423
 424                         # if this is a 'bad spotter' user then ignore it
 425                         my $nossid = $field[6];
 426                         $nossid =~ s/-\d+$//;
 427                         if ($badspotter->in($nossid)) {
 428                                 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
 429                                 return;
 430                         }
 431
 432                         # convert the date to a unix date
 433                         my $d = cltounix($field[3], $field[4]);
 434                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 435                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 436                                 dbg("PCPROT: Spot ignored, invalid date or out of range ($field[3] $field[4])\n") if isdbg('chanerr');
 437                                 return;
 438                         }
 439
 440                         # is it 'baddx'
 441                         if ($baddx->in($field[2]) || BadWords::check($field[2]) || $field[2] =~ /COCK/) {
 442                                 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
 443                                 return;
 444                         }
 445
 446                         # do some de-duping
 447                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 448                         $field[2] = unpad($field[2]);   # take off leading and trailing blanks from spotted callsign
 449                         if ($field[2] =~ /BUST\w*$/) {
 450                                 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
 451                                 return;
 452                         }
 453                         if ($censorpc) {
 454                                 my @bad;
 455                                 if (@bad = BadWords::check($field[5])) {
 456                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 457                                         return;
 458                                 }
 459                         }
 460
 461
 462                         my @spot = Spot::prepare($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 463                         # global spot filtering on INPUT
 464                         if ($self->{inspotsfilter}) {
 465                                 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
 466                                 unless ($filter) {
 467                                         dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
 468                                         return;
 469                                 }
 470                         }
 471
 472                         # this goes after the input filtering, but before the add
 473                         # so that if it is input filtered, it isn't added to the dup
 474                         # list. This allows it to come in from a "legitimate" source
 475                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 476                                 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
 477                                 return;
 478                         }
 479
 480                         # add it
 481                         Spot::add(@spot);
 482
 483             #
 484                         # @spot at this point contains:-
 485             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 486                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 487                         # you should be able to route on any of these
 488             #
 489
 490                         # fix up qra locators of known users
 491                         my $user = DXUser->get_current($spot[4]);
 492                         if ($user) {
 493                                 my $qra = $user->qra;
 494                                 unless ($qra && is_qra($qra)) {
 495                                         my $lat = $user->lat;
 496                                         my $long = $user->long;
 497                                         if (defined $lat && defined $long) {
 498                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 499                                                 $user->put;
 500                                         }
 501                                 }
 502
 503                                 # send a remote command to a distant cluster if it is visible and there is no
 504                                 # qra locator and we havn't done it for a month.
 505
 506                                 unless ($user->qra) {
 507                                         my $node;
 508                                         my $to = $user->homenode;
 509                                         my $last = $user->lastoper || 0;
 510                                         if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
 511                                                 my $cmd = "forward/opernam $spot[4]";
 512                                                 # send the rcmd but we aren't interested in the replies...
 513                                                 my $dxchan = $node->dxchan;
 514                                                 if ($dxchan && $dxchan->is_clx) {
 515                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 516                                                 } else {
 517                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 518                                                 }
 519                                                 if ($to ne $field[7]) {
 520                                                         $to = $field[7];
 521                                                         $node = Route::Node::get($to);
 522                                                         if ($node) {
 523                                                                 $dxchan = $node->dxchan;
 524                                                                 if ($dxchan && $dxchan->is_clx) {
 525                                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 526                                                                 } else {
 527                                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 528                                                                 }
 529                                                         }
 530                                                 }
 531                                                 $user->lastoper($main::systime);
 532                                                 $user->put;
 533                                         }
 534                                 }
 535                         }
 536
 537                         # local processing
 538                         my $r;
 539                         eval {
 540                                 $r = Local::spot($self, @spot);
 541                         };
 542 #                       dbg("Local::spot1 error $@") if isdbg('local') if $@;
 543                         return if $r;
 544
 545                         # DON'T be silly and send on PC26s!
 546                         return if $pcno == 26;
 547
 548                         # send out the filtered spots
 549                         send_dx_spot($self, $line, @spot) if @spot;
 550                         return;
 551                 }
 552
 553                 if ($pcno == 12) {              # announces
 554
 555 #                       return if $rspfcheck and !$self->rspfcheck(1, $field[5], $field[1]);
 556
 557                         # announce duplicate checking
 558                         $field[3] =~ s/^\s+//;  # remove leading blanks
 559
 560                         if ($censorpc) {
 561                                 my @bad;
 562                                 if (@bad = BadWords::check($field[3])) {
 563                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 564                                         return;
 565                                 }
 566                         }
 567
 568                         # if this is a 'nodx' node then ignore it
 569                         if ($badnode->in($field[5])) {
 570                                 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
 571                                 return;
 572                         }
 573
 574                         # if this is a 'bad spotter' user then ignore it
 575                         my $nossid = $field[1];
 576                         $nossid =~ s/-\d+$//;
 577                         if ($badspotter->in($nossid)) {
 578                                 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
 579                                 return;
 580                         }
 581
 582                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 583
 584
 585                                 # here's a bit of fun, convert incoming ann with a callsign in the first word
 586                                 # or one saying 'to <call>' to a talk if we can route to the recipient
 587                                 if ($ann_to_talk) {
 588                                         my $call = AnnTalk::is_talk_candidate($field[1], $field[3]);
 589                                         if ($call) {
 590                                                 my $ref = Route::get($call);
 591                                                 if ($ref) {
 592                                                         my $dxchan = $ref->dxchan;
 593                                                         $dxchan->talk($field[1], $call, undef, $field[3], $field[5]) if $dxchan != $self;
 594                                                         return;
 595                                                 }
 596                                         }
 597                                 }
 598
 599                                 # send it
 600                                 $self->send_announce($line, @field[1..6]);
 601                         } else {
 602                                 $self->route($field[2], $line);
 603                         }
 604                         return;
 605                 }
 606
 607                 if ($pcno == 13) {
 608                         last SWITCH;
 609                 }
 610                 if ($pcno == 14) {
 611                         last SWITCH;
 612                 }
 613                 if ($pcno == 15) {
 614                         last SWITCH;
 615                 }
 616
 617                 if ($pcno == 16) {              # add a user
 618
 619                         if (eph_dup($line)) {
 620                                 dbg("PCPROT: dup PC16 detected") if isdbg('chanerr');
 621                                 return;
 622                         }
 623
 624                         # general checks
 625                         my $dxchan;
 626                         my $ncall = $field[1];
 627                         my $newline = "PC16^";
 628
 629                         if ($ncall eq $main::mycall) {
 630                                 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
 631                                 return;
 632                         }
 633                         my $parent = Route::Node::get($ncall);
 634                         unless ($parent) {
 635                                 dbg("PCPROT: Node $ncall not in config") if isdbg('chanerr');
 636                                 return;
 637                         }
 638                         $dxchan = $parent->dxchan;
 639                         if ($dxchan && $dxchan ne $self) {
 640                                 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
 641                                 return;
 642                         }
 643
 644                         # input filter if required
 645                         return unless $self->in_filter_route($parent);
 646
 647                         my $i;
 648                         my @rout;
 649                         for ($i = 2; $i < $#field; $i++) {
 650                                 my ($call, $conf, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 651                                 next unless $call && $conf && defined $here && is_callsign($call);
 652                                 next if $call eq $main::mycall;
 653
 654                                 eph_del_regex("^PC17\\^$call\\^$ncall");
 655
 656                                 $conf = $conf eq '*';
 657
 658                                 # reject this if we think it is a node already
 659                                 my $r = Route::Node::get($call);
 660                                 my $u = DXUser->get_current($call) unless $r;
 661                                 if ($r || ($u && $u->is_node)) {
 662                                         dbg("PCPROT: $call is a node") if isdbg('chanerr');
 663                                         next;
 664                                 }
 665
 666                                 $r = Route::User::get($call);
 667                                 my $flags = Route::here($here)|Route::conf($conf);
 668
 669                                 if ($r) {
 670                                         if ($r->flags != $flags) {
 671                                                 $r->flags($flags);
 672                                                 push @rout, $r;
 673                                         }
 674                                         $r->addparent($parent);
 675                                 } else {
 676                                         push @rout, $parent->add_user($call, $flags);
 677                                 }
 678
 679                                 # add this station to the user database, if required
 680                                 $call =~ s/-\d+$//o;        # remove ssid for users
 681                                 my $user = DXUser->get_current($call);
 682                                 $user = DXUser->new($call) if !$user;
 683                                 $user->homenode($parent->call) if !$user->homenode;
 684                                 $user->node($parent->call);
 685                                 $user->lastin($main::systime) unless DXChannel->get($call);
 686                                 $user->put;
 687                         }
 688
 689                         # queue up any messages (look for privates only)
 690                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 691
 692                         $self->route_pc16($parent, @rout) if @rout;
 693                         return;
 694                 }
 695
 696                 if ($pcno == 17) {              # remove a user
 697                         my $dxchan;
 698                         my $ncall = $field[2];
 699                         my $ucall = $field[1];
 700
 701                         eph_del_regex("^PC16\\^$ncall.*$ucall");
 702
 703                         if ($ncall eq $main::mycall) {
 704                                 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
 705                                 return;
 706                         }
 707
 708                         my $uref = Route::User::get($ucall);
 709                         unless ($uref) {
 710                                 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
 711                                 return;
 712                         }
 713                         my $parent = Route::Node::get($ncall);
 714                         unless ($parent) {
 715                                 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
 716                                 return;
 717                         }
 718
 719                         $dxchan = $parent->dxchan;
 720                         if ($dxchan && $dxchan ne $self) {
 721                                 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
 722                                 return;
 723                         }
 724
 725                         # input filter if required
 726                         return unless $self->in_filter_route($parent);
 727
 728                         $parent->del_user($uref);
 729
 730                         if (eph_dup($line)) {
 731                                 dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
 732                                 return;
 733                         }
 734
 735                         $self->route_pc17($parent, $uref);
 736                         return;
 737                 }
 738
 739                 if ($pcno == 18) {              # link request
 740                         $self->state('init');
 741
 742                         # first clear out any nodes on this dxchannel
 743                         my $parent = Route::Node::get($self->{call});
 744                         my @rout = $parent->del_nodes;
 745                         $self->route_pc21(@rout, $parent) if @rout;
 746                         $self->send_local_config();
 747                         $self->send(pc20());
 748                         return;             # we don't pass these on
 749                 }
 750
 751                 if ($pcno == 19) {              # incoming cluster list
 752                         my $i;
 753                         my $newline = "PC19^";
 754
 755                         if (eph_dup($line)) {
 756                                 dbg("PCPROT: dup PC19 detected") if isdbg('chanerr');
 757                                 return;
 758                         }
 759
 760                         # new routing list
 761                         my @rout;
 762                         my $parent = Route::Node::get($self->{call});
 763                         unless ($parent) {
 764                                 dbg("DXPROT: my parent $self->{call} has disappeared");
 765                                 $self->disconnect;
 766                                 return;
 767                         }
 768
 769                         # parse the PC19
 770                         for ($i = 1; $i < $#field-1; $i += 4) {
 771                                 my $here = $field[$i];
 772                                 my $call = uc $field[$i+1];
 773                                 my $conf = $field[$i+2];
 774                                 my $ver = $field[$i+3];
 775                                 next unless defined $here && defined $conf && is_callsign($call);
 776
 777                                 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
 778
 779                                 # check for sane parameters
 780 #                               $ver = 5000 if $ver eq '0000';
 781                                 next if $ver < 5000; # only works with version 5 software
 782                                 next if length $call < 3; # min 3 letter callsigns
 783                                 next if $call eq $main::mycall;
 784
 785                                 # check that this PC19 isn't trying to alter the wrong dxchan
 786                                 my $dxchan = DXChannel->get($call);
 787                                 if ($dxchan && $dxchan != $self) {
 788                                         dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
 789                                         next;
 790                                 }
 791
 792                                 # update it if required
 793                                 my $r = Route::Node::get($call);
 794                                 my $flags = Route::here($here)|Route::conf($conf);
 795                                 if ($r) {
 796                                         my $ar;
 797                                         if ($call ne $parent->call) {
 798                                                 if ($self->in_filter_route($r)) {
 799                                                         $ar = $parent->add($call, $ver, $flags);
 800                                                         push @rout, $ar if $ar;
 801                                                 } else {
 802                                                         next;
 803                                                 }
 804                                         }
 805                                         if ($r->version ne $ver || $r->flags != $flags) {
 806                                                 $r->version($ver);
 807                                                 $r->flags($flags);
 808                                                 push @rout, $r unless $ar;
 809                                         }
 810                                 } else {
 811                                         if ($call eq $self->{call}) {
 812                                                 dbg("DXPROT: my channel route for $call has disappeared");
 813                                                 next;
 814                                         };
 815
 816                                         my $new = Route->new($call);          # throw away
 817                                     if ($self->in_filter_route($new)) {
 818                                                 my $r = $parent->add($call, $ver, $flags);
 819                                                 push @rout, $r;
 820                                         } else {
 821                                                 next;
 822                                         }
 823                                 }
 824
 825                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 826                                 my $mref = DXMsg::get_busy($call);
 827                                 $mref->stop_msg($call) if $mref;
 828
 829                                 # add this station to the user database, if required (don't remove SSID from nodes)
 830                                 my $user = DXUser->get_current($call);
 831                                 if (!$user) {
 832                                         $user = DXUser->new($call);
 833                                         $user->sort('A');
 834                                         $user->priv(1);                   # I have relented and defaulted nodes
 835                                         $user->lockout(1);
 836                                         $user->homenode($call);
 837                                         $user->node($call);
 838                                 }
 839                                 $user->lastin($main::systime) unless DXChannel->get($call);
 840                                 $user->put;
 841                         }
 842
 843
 844                         $self->route_pc19(@rout) if @rout;
 845                         return;
 846                 }
 847
 848                 if ($pcno == 20) {              # send local configuration
 849                         $self->send_local_config();
 850                         $self->send(pc22());
 851                         $self->state('normal');
 852                         $self->{lastping} = 0;
 853                         return;
 854                 }
 855
 856                 if ($pcno == 21) {              # delete a cluster from the list
 857                         my $call = uc $field[1];
 858
 859                         eph_del_regex("^PC1[79].*$call");
 860
 861                         # if I get a PC21 from the same callsign as self then treat it
 862                         # as a PC39: I have gone away
 863                         if ($call eq $self->call) {
 864                                 $self->disconnect(1);
 865                                 return;
 866                         }
 867
 868                         my @rout;
 869                         my $parent = Route::Node::get($self->{call});
 870                         unless ($parent) {
 871                                 dbg("DXPROT: my parent $self->{call} has disappeared");
 872                                 $self->disconnect;
 873                                 return;
 874                         }
 875                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 876                                 my $node = Route::Node::get($call);
 877                                 if ($node) {
 878
 879                                         my $dxchan = DXChannel->get($call);
 880                                         if ($dxchan && $dxchan != $self) {
 881                                                 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chanerr');
 882                                                 return;
 883                                         }
 884
 885                                         # input filter it
 886                                         return unless $self->in_filter_route($node);
 887
 888                                         # routing objects
 889                                         push @rout, $node->del($parent);
 890                                 }
 891                         } else {
 892                                 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
 893                                 return;
 894                         }
 895
 896 #                       if (eph_dup($line)) {
 897 #                               dbg("PCPROT: dup PC21 detected") if isdbg('chanerr');
 898 #                               return;
 899 #                       }
 900
 901                         $self->route_pc21(@rout) if @rout;
 902                         return;
 903                 }
 904
 905                 if ($pcno == 22) {
 906                         $self->state('normal');
 907                         $self->{lastping} = 0;
 908                         return;
 909                 }
 910
 911                 if ($pcno == 23 || $pcno == 27) { # WWV info
 912
 913                         # route 'foreign' pc27s
 914                         if ($pcno == 27) {
 915                                 if ($field[8] ne $main::mycall) {
 916                                         $self->route($field[8], $line);
 917                                         return;
 918                                 }
 919                         }
 920
 921                         return if $rspfcheck and !$self->rspfcheck(1, $field[8], $field[7]);
 922
 923                         # do some de-duping
 924                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 925                         my $sfi = unpad($field[3]);
 926                         my $k = unpad($field[4]);
 927                         my $i = unpad($field[5]);
 928                         my ($r) = $field[6] =~ /R=(\d+)/;
 929                         $r = 0 unless $r;
 930                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 931                                 dbg("PCPROT: WWV Date ($field[1] $field[2]) out of range") if isdbg('chanerr');
 932                                 return;
 933                         }
 934                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 935                                 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
 936                                 return;
 937                         }
 938                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 939
 940                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 941
 942                         my $rep;
 943                         eval {
 944                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 945                         };
 946 #                       dbg("Local::wwv2 error $@") if isdbg('local') if $@;
 947                         return if $rep;
 948
 949                         # DON'T be silly and send on PC27s!
 950                         return if $pcno == 27;
 951
 952                         # broadcast to the eager world
 953                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 954                         return;
 955                 }
 956
 957                 if ($pcno == 24) {              # set here status
 958                         my $call = uc $field[1];
 959                         my ($nref, $uref);
 960                         $nref = Route::Node::get($call);
 961                         $uref = Route::User::get($call);
 962                         return unless $nref || $uref;   # if we don't know where they are, it's pointless sending it on
 963
 964                         unless (eph_dup($line)) {
 965                                 $nref->here($field[2]) if $nref;
 966                                 $uref->here($field[2]) if $uref;
 967                                 my $ref = $nref || $uref;
 968                                 return unless $self->in_filter_route($ref);
 969                                 $self->route_pc24($ref, $field[3]);
 970                         }
 971                         return;
 972                 }
 973
 974                 if ($pcno == 25) {      # merge request
 975                         if ($field[1] ne $main::mycall) {
 976                                 $self->route($field[1], $line);
 977                                 return;
 978                         }
 979                         if ($field[2] eq $main::mycall) {
 980                                 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
 981                                 return;
 982                         }
 983
 984                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[2]");
 985
 986                         # spots
 987                         if ($field[3] > 0) {
 988                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 989                                 my $in;
 990                                 foreach $in (@in) {
 991                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 992                                 }
 993                         }
 994
 995                         # wwv
 996                         if ($field[4] > 0) {
 997                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 998                                 my $in;
 999                                 foreach $in (@in) {
1000                                         $self->send(pc27(@{$in}[0..5], $field[2]));
1001                                 }
1002                         }
1003                         return;
1004                 }
1005
1006                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
1007                         return if $pcno == 49 && eph_dup($line);
1008                         if ($pcno == 49 || $field[1] eq $main::mycall) {
1009                                 DXMsg::process($self, $line);
1010                         } else {
1011                                 $self->route($field[1], $line) unless $self->is_clx;
1012                         }
1013                         return;
1014                 }
1015
1016                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
1017                         if (eph_dup($line, $eph_pc34_restime)) {
1018                                 dbg("PCPROT: dupe") if isdbg('chanerr');
1019                         } else {
1020                                 $self->process_rcmd($field[1], $field[2], $field[2], $field[3]);
1021                         }
1022                         return;
1023                 }
1024
1025                 if ($pcno == 35) {              # remote command replies
1026                         eph_del_regex("^PC35\\^$field[2]\\^$field[1]\\^");
1027                         $self->process_rcmd_reply($field[1], $field[2], $field[1], $field[3]);
1028                         return;
1029                 }
1030
1031                 # for pc 37 see 44 onwards
1032
1033                 if ($pcno == 38) {              # node connected list from neighbour
1034                         return;
1035                 }
1036
1037                 if ($pcno == 39) {              # incoming disconnect
1038                         if ($field[1] eq $self->{call}) {
1039                                 $self->disconnect(1);
1040                         } else {
1041                                 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1042                         }
1043                         return;
1044                 }
1045
1046                 if ($pcno == 41) {              # user info
1047                         my $call = $field[1];
1048
1049                         if (eph_dup($line, $eph_info_restime)) {
1050                                 dbg("PCPROT: dupe") if isdbg('chanerr');
1051                                 return;
1052                         }
1053
1054                         # input filter if required
1055 #                       my $ref = Route::get($call) || Route->new($call);
1056 #                       return unless $self->in_filter_route($ref);
1057
1058                         if ($field[3] eq $field[2] || $field[3] =~ /^\s*$/) {
1059                                 dbg('PCPROT: invalid value') if isdbg('chanerr');
1060                                 return;
1061                         }
1062
1063                         # add this station to the user database, if required
1064                         my $user = DXUser->get_current($call);
1065                         $user = DXUser->new($call) if !$user;
1066
1067                         if ($field[2] == 1) {
1068                                 $user->name($field[3]);
1069                         } elsif ($field[2] == 2) {
1070                                 $user->qth($field[3]);
1071                         } elsif ($field[2] == 3) {
1072                                 if (is_latlong($field[3])) {
1073                                         my ($lat, $long) = DXBearing::stoll($field[3]);
1074                                         $user->lat($lat);
1075                                         $user->long($long);
1076                                         $user->qra(DXBearing::lltoqra($lat, $long));
1077                                 } else {
1078                                         dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1079                                         return;
1080                                 }
1081                         } elsif ($field[2] == 4) {
1082                                 $user->homenode($field[3]);
1083                         } elsif ($field[2] == 5) {
1084                                 if (is_qra(uc $field[3])) {
1085                                         my ($lat, $long) = DXBearing::qratoll(uc $field[3]);
1086                                         $user->lat($lat);
1087                                         $user->long($long);
1088                                         $user->qra(uc $field[3]);
1089                                 } else {
1090                                         dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1091                                         return;
1092                                 }
1093                         }
1094                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
1095                         $user->put;
1096
1097                         unless ($self->{isolate}) {
1098                                 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1099                         }
1100
1101 #  perhaps this IS what we want after all
1102 #                       $self->route_pc41($ref, $call, $field[2], $field[3], $field[4]);
1103                         return;
1104                 }
1105
1106                 if ($pcno == 43) {
1107                         last SWITCH;
1108                 }
1109
1110                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
1111                         DXDb::process($self, $line);
1112                         return;
1113                 }
1114
1115                 if ($pcno == 50) {              # keep alive/user list
1116                         my $call = $field[1];
1117                         my $node = Route::Node::get($call);
1118                         if ($node) {
1119                                 return unless $node->call eq $self->{call};
1120                                 $node->usercount($field[2]);
1121
1122                                 # input filter if required
1123                                 return unless $self->in_filter_route($node);
1124
1125                                 $self->route_pc50($node, $field[2], $field[3]) unless eph_dup($line);
1126                         }
1127                         return;
1128                 }
1129
1130                 if ($pcno == 51) {              # incoming ping requests/answers
1131                         my $to = $field[1];
1132                         my $from = $field[2];
1133                         my $flag = $field[3];
1134
1135
1136                         # is it for us?
1137                         if ($to eq $main::mycall) {
1138                                 if ($flag == 1) {
1139                                         $self->send(pc51($from, $to, '0'));
1140                                 } else {
1141                                         # it's a reply, look in the ping list for this one
1142                                         my $ref = $pings{$from};
1143                                         if ($ref) {
1144                                                 my $tochan =  DXChannel->get($from);
1145                                                 while (@$ref) {
1146                                                         my $r = shift @$ref;
1147                                                         my $dxchan = DXChannel->get($r->{call});
1148                                                         next unless $dxchan;
1149                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
1150                                                         if ($dxchan->is_user) {
1151                                                                 my $s = sprintf "%.2f", $t;
1152                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
1153                                                                 $dxchan->send($dxchan->msg('pingi', $from, $s, $ave))
1154                                                         } elsif ($dxchan->is_node) {
1155                                                                 if ($tochan) {
1156                                                                         my $nopings = $tochan->user->nopings || 2;
1157                                                                         push @{$tochan->{pingtime}}, $t;
1158                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
1159
1160                                                                         # cope with a missed ping, this means you must set the pingint large enough
1161                                                                         if ($t > $tochan->{pingint}  && $t < 2 * $tochan->{pingint} ) {
1162                                                                                 $t -= $tochan->{pingint};
1163                                                                         }
1164
1165                                                                         # calc smoothed RTT a la TCP
1166                                                                         if (@{$tochan->{pingtime}} == 1) {
1167                                                                                 $tochan->{pingave} = $t;
1168                                                                         } else {
1169                                                                                 $tochan->{pingave} = $tochan->{pingave} + (($t - $tochan->{pingave}) / 6);
1170                                                                         }
1171 #                                                                       my $st;
1172 #                                                                       for (@{$tochan->{pingtime}}) {
1173 #                                                                               $st += $_;
1174 #                                                                       }
1175 #                                                                       $tochan->{pingave} = $st / @{$tochan->{pingtime}};
1176                                                                         $tochan->{nopings} = $nopings; # pump up the timer
1177                                                                 }
1178                                                         }
1179                                                 }
1180                                         }
1181                                 }
1182                         } else {
1183                                 if (eph_dup($line)) {
1184                                         dbg("PCPROT: dup PC51 detected") if isdbg('chanerr');
1185                                         return;
1186                                 }
1187                                 # route down an appropriate thingy
1188                                 $self->route($to, $line);
1189                         }
1190                         return;
1191                 }
1192
1193                 if ($pcno == 75) {              # dunno but route it
1194                         my $call = $field[1];
1195                         if ($call ne $main::mycall) {
1196                                 $self->route($call, $line);
1197                         }
1198                         return;
1199                 }
1200
1201                 if ($pcno == 73) {  # WCY broadcasts
1202                         my $call = $field[1];
1203
1204                         # do some de-duping
1205                         my $d = cltounix($call, sprintf("%02d18Z", $field[2]));
1206                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
1207                                 dbg("PCPROT: WCY Date ($call $field[2]) out of range") if isdbg('chanerr');
1208                                 return;
1209                         }
1210                         @field = map { unpad($_) } @field;
1211                         if (WCY::dup($d)) {
1212                                 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1213                                 return;
1214                         }
1215
1216                         my $wcy = WCY::update($d, @field[2..12]);
1217
1218                         my $rep;
1219                         eval {
1220                                 $rep = Local::wcy($self, @field[1..12]);
1221                         };
1222                         # dbg("Local::wcy error $@") if isdbg('local') if $@;
1223                         return if $rep;
1224
1225                         # broadcast to the eager world
1226                         send_wcy_spot($self, $line, $d, @field[2..12]);
1227                         return;
1228                 }
1229
1230                 if ($pcno == 84) { # remote commands (incoming)
1231                         $self->process_rcmd($field[1], $field[2], $field[3], $field[4]);
1232                         return;
1233                 }
1234
1235                 if ($pcno == 85) {              # remote command replies
1236                         $self->process_rcmd_reply($field[1], $field[2], $field[3], $field[4]);
1237
1238                         return;
1239                 }
1240                 if ($pcno == 90) {              # new style PC16,17,19,21
1241                         my $node = $field[1];
1242
1243                         # mark this node as wanting PC90s
1244                         my $parent = Route::Node::get($node);
1245                         if ($parent) {
1246                                 my $t = hex $field[2];
1247                                 my $last = $parent->lastpc90 || 0;
1248                                 if ($last < $t) {
1249                                         $parent->pc90(1);
1250                                         $parent->lastpc90($t);
1251                                         my ($updsort, $n) = unpack "AA*", $field[3];
1252                                         for (my $i = 4; $i < $#field; $i++) {
1253                                                 my ($sort, $flag, $node, $ping) = $field[$i] =~ m{(\w)(\d)([-\w+])(,\d+)?};
1254                                                 $ping /= 10 if (defined $ping);
1255                                         }
1256                                 }
1257                         }
1258
1259                         return;
1260                 }
1261         }
1262
1263         # if get here then rebroadcast the thing with its Hop count decremented (if
1264         # there is one). If it has a hop count and it decrements to zero then don't
1265         # rebroadcast it.
1266         #
1267         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1268         #        REBROADCAST!!!!
1269         #
1270
1271         if (eph_dup($line)) {
1272                 dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr');
1273         } else {
1274                 unless ($self->{isolate}) {
1275                         DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1276                 }
1277         }
1278 }
1279
1280 #
1281 # This is called from inside the main cluster processing loop and is used
1282 # for despatching commands that are doing some long processing job
1283 #
1284 sub process
1285 {
1286         my $t = time;
1287         my @dxchan = DXChannel->get_all();
1288         my $dxchan;
1289         my $pc50s;
1290
1291         # send out a pc50 on EVERY channel all at once
1292         if ($t >= $last_pc50 + $DXProt::pc50_interval) {
1293                 $pc50s = pc50($main::me, scalar DXChannel::get_all_users);
1294                 eph_dup($pc50s);
1295                 $last_pc50 = $t;
1296         }
1297
1298         foreach $dxchan (@dxchan) {
1299                 next unless $dxchan->is_node();
1300                 next if $dxchan == $main::me;
1301
1302                 # send the pc50 or PC90
1303                 if ($pc50s && $dxchan->user->wantpc90) {
1304                         $dxchan->send_route(\&pc90, 1, $main::me, 'T', @dxchan);
1305                 } else {
1306                         $dxchan->send($pc50s) if $pc50s;
1307                 }
1308
1309                 # send a ping out on this channel
1310                 if ($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, $org_cq) = (0..0);
1512         my @dxcc = Prefix::extract($_[0]);
1513         if (@dxcc > 0) {
1514                 $ann_dxcc = $dxcc[1]->dxcc;
1515                 $ann_itu = $dxcc[1]->itu;
1516                 $ann_cq = $dxcc[1]->cq;
1517         }
1518         @dxcc = Prefix::extract($_[4]);
1519         if (@dxcc > 0) {
1520                 $org_dxcc = $dxcc[1]->dxcc;
1521                 $org_itu = $dxcc[1]->itu;
1522                 $org_cq = $dxcc[1]->cq;
1523         }
1524
1525         if ($self->{inannfilter}) {
1526                 my ($filter, $hops) =
1527                         $self->{inannfilter}->it(@_, $self->{call},
1528                                                                          $ann_dxcc, $ann_itu, $ann_cq,
1529                                                                          $org_dxcc, $org_itu, $org_cq);
1530                 unless ($filter) {
1531                         dbg("PCPROT: Rejected by input announce filter") if isdbg('chanerr');
1532                         return;
1533                 }
1534         }
1535
1536         if (AnnTalk::dup($_[0], $_[1], $_[2])) {
1537                 dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');
1538                 return;
1539         }
1540
1541         Log('ann', $target, $_[0], $text);
1542
1543         # send it if it isn't the except list and isn't isolated and still has a hop count
1544         # taking into account filtering and so on
1545         foreach $dxchan (@dxchan) {
1546                 next if $dxchan == $main::me;
1547                 next if $dxchan == $self && $self->is_node;
1548                 $dxchan->announce($line, $self->{isolate}, $to, $target, $text, @_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1549         }
1550 }
1551
1552 sub announce
1553 {
1554         my $self = shift;
1555         my $line = shift;
1556         my $isolate = shift;
1557         my $to = shift;
1558         my $target = shift;
1559         my $text = shift;
1560         my ($filter, $hops);
1561
1562         if ($self->{annfilter}) {
1563                 ($filter, $hops) = $self->{annfilter}->it(@_);
1564                 return unless $filter;
1565         }
1566         send_prot_line($self, $filter, $hops, $isolate, $line) unless $_[1] eq $main::mycall;
1567 }
1568
1569
1570 sub send_local_config
1571 {
1572         my $self = shift;
1573         my $n;
1574         my @nodes;
1575         my @localnodes;
1576         my @remotenodes;
1577
1578         dbg('DXProt::send_local_config') if isdbg('trace');
1579
1580         # send our nodes
1581         if ($self->{isolate}) {
1582                 @localnodes = ( $main::routeroot );
1583         } else {
1584                 # create a list of all the nodes that are not connected to this connection
1585                 # and are not themselves isolated, this to make sure that isolated nodes
1586         # don't appear outside of this node
1587                 my @dxchan = grep { $_->call ne $main::mycall && $_ != $self && !$_->{isolate} } DXChannel::get_all_nodes();
1588                 @localnodes = map { my $r = Route::Node::get($_->{call}); $r ? $r : () } @dxchan if @dxchan && !$self->user->wantpc90;
1589                 my @intcalls = map { $_->nodes } @localnodes if @localnodes;
1590                 my $ref = Route::Node::get($self->{call});
1591                 my @rnodes = $ref->nodes;
1592                 for my $n (@intcalls) {
1593                         push @remotenodes, Route::Node::get($n) unless grep $n eq $_, @rnodes;
1594                 }
1595                 unshift @localnodes, $main::routeroot;
1596         }
1597
1598
1599         send_route($self, \&pc19, scalar(@localnodes)+scalar(@remotenodes), @localnodes, @remotenodes);
1600
1601         # get all the users connected on the above nodes and send them out
1602         foreach $n (@localnodes, @remotenodes) {
1603                 if ($n) {
1604                         send_route($self, \&pc16, 1, $n, map {my $r = Route::User::get($_); $r ? ($r) : ()} $n->users);
1605                 } else {
1606                         dbg("sent a null value") if isdbg('chanerr');
1607                 }
1608         }
1609         $self->send_route(\&pc90, 1, $main::me, 'T', DXChannel::get_all()) if $self->user->wantpc90;
1610 }
1611
1612 #
1613 # route a message down an appropriate interface for a callsign
1614 #
1615 # is called route(to, pcline);
1616 #
1617 sub route
1618 {
1619         my ($self, $call, $line) = @_;
1620
1621         if (ref $self && $call eq $self->{call}) {
1622                 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
1623                 return;
1624         }
1625
1626         # always send it down the local interface if available
1627         my $dxchan = DXChannel->get($call);
1628         unless ($dxchan) {
1629                 my $cl = Route::get($call);
1630                 $dxchan = $cl->dxchan if $cl;
1631                 if (ref $dxchan) {
1632                         if (ref $self && $dxchan eq $self) {
1633                                 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
1634                                 return;
1635                         }
1636                 }
1637         }
1638         if ($dxchan) {
1639                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1640                 if ($routeit) {
1641                         $dxchan->send($routeit) unless $dxchan == $main::me;
1642                 }
1643         } else {
1644                 dbg("PCPROT: No route available, dropped") if isdbg('chanerr');
1645         }
1646 }
1647
1648 #
1649 # obtain the hops from the list for this callsign and pc no
1650 #
1651
1652 sub get_hops
1653 {
1654         my $pcno = shift;
1655         my $hops = $DXProt::hopcount{$pcno};
1656         $hops = $DXProt::def_hopcount if !$hops;
1657         return "H$hops";
1658 }
1659
1660 #
1661 # adjust the hop count on a per node basis using the user loadable
1662 # hop table if available or else decrement an existing one
1663 #
1664
1665 sub adjust_hops
1666 {
1667         my $self = shift;
1668         my $s = shift;
1669         my $call = $self->{call};
1670         my $hops;
1671
1672         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1673                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1674                 confess "$call called adjust_hops with '$s'" unless $pcno;
1675                 my $ref = $nodehops{$call} if %nodehops;
1676                 if ($ref) {
1677                         my $newhops = $ref->{$pcno};
1678                         return "" if defined $newhops && $newhops == 0;
1679                         $newhops = $ref->{default} unless $newhops;
1680                         return "" if defined $newhops && $newhops == 0;
1681                         $newhops = $hops if !$newhops;
1682                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1683                 } else {
1684                         # simply decrement it
1685                         $hops--;
1686                         return "" if !$hops;
1687                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1688                 }
1689         }
1690         return $s;
1691 }
1692
1693 #
1694 # load hop tables
1695 #
1696 sub load_hops
1697 {
1698         my $self = shift;
1699         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1700         do "$main::data/hop_table.pl";
1701         return $@ if $@;
1702         return 0;
1703 }
1704
1705
1706 # add a ping request to the ping queues
1707 sub addping
1708 {
1709         my ($from, $to) = @_;
1710         my $ref = $pings{$to} || [];
1711         my $r = {};
1712         $r->{call} = $from;
1713         $r->{t} = [ gettimeofday ];
1714         route(undef, $to, pc51($to, $main::mycall, 1));
1715         push @$ref, $r;
1716         $pings{$to} = $ref;
1717 }
1718
1719 sub process_rcmd
1720 {
1721         my ($self, $tonode, $fromnode, $user, $cmd) = @_;
1722         if ($tonode eq $main::mycall) {
1723                 my $ref = DXUser->get_current($fromnode);
1724                 my $cref = Route::Node::get($fromnode);
1725                 Log('rcmd', 'in', $ref->{priv}, $fromnode, $cmd);
1726                 if ($cmd !~ /^\s*rcmd/i && $cref && $ref && $cref->call eq $ref->homenode) { # not allowed to relay RCMDS!
1727                         if ($ref->{priv}) {             # you have to have SOME privilege, the commands have further filtering
1728                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1729                                 my $oldpriv = $self->{priv};
1730                                 $self->{priv} = $ref->{priv}; # assume the user's privilege level
1731                                 my @in = (DXCommandmode::run_cmd($self, $cmd));
1732                                 $self->{priv} = $oldpriv;
1733                                 $self->send_rcmd_reply($main::mycall, $fromnode, $user, @in);
1734                                 delete $self->{remotecmd};
1735                         } else {
1736                                 $self->send_rcmd_reply($main::mycall, $fromnode, $user, "sorry...!");
1737                         }
1738                 } else {
1739                         $self->send_rcmd_reply($main::mycall, $fromnode, $user, "your attempt is logged, Tut tut tut...!");
1740                 }
1741         } else {
1742                 my $ref = DXUser->get_current($tonode);
1743                 if ($ref && $ref->is_clx) {
1744                         $self->route($tonode, pc84($fromnode, $tonode, $user, $cmd));
1745                 } else {
1746                         $self->route($tonode, pc34($fromnode, $tonode, $cmd));
1747                 }
1748         }
1749 }
1750
1751 sub process_rcmd_reply
1752 {
1753         my ($self, $tonode, $fromnode, $user, $line) = @_;
1754         if ($tonode eq $main::mycall) {
1755                 my $s = $rcmds{$fromnode};
1756                 if ($s) {
1757                         my $dxchan = DXChannel->get($s->{call});
1758                         my $ref = $user eq $tonode ? $dxchan : (DXChannel->get($user) || $dxchan);
1759                         $ref->send($line) if $ref;
1760                         delete $rcmds{$fromnode} if !$dxchan;
1761                 } else {
1762                         # send unsolicited ones to the sysop
1763                         my $dxchan = DXChannel->get($main::myalias);
1764                         $dxchan->send($line) if $dxchan;
1765                 }
1766         } else {
1767                 my $ref = DXUser->get_current($tonode);
1768                 if ($ref && $ref->is_clx) {
1769                         $self->route($tonode, pc85($fromnode, $tonode, $user, $line));
1770                 } else {
1771                         $self->route($tonode, pc35($fromnode, $tonode, $line));
1772                 }
1773         }
1774 }
1775
1776 sub send_rcmd_reply
1777 {
1778         my $self = shift;
1779         my $tonode = shift;
1780         my $fromnode = shift;
1781         my $user = shift;
1782         while (@_) {
1783                 my $line = shift;
1784                 $line =~ s/\s*$//;
1785                 Log('rcmd', 'out', $fromnode, $line);
1786                 if ($self->is_clx) {
1787                         $self->send(pc85($main::mycall, $fromnode, $user, "$main::mycall:$line"));
1788                 } else {
1789                         $self->send(pc35($main::mycall, $fromnode, "$main::mycall:$line"));
1790                 }
1791         }
1792 }
1793
1794 # add a rcmd request to the rcmd queues
1795 sub addrcmd
1796 {
1797         my ($self, $to, $cmd) = @_;
1798
1799         my $r = {};
1800         $r->{call} = $self->{call};
1801         $r->{t} = $main::systime;
1802         $r->{cmd} = $cmd;
1803         $rcmds{$to} = $r;
1804
1805         my $ref = Route::Node::get($to);
1806         my $dxchan = $ref->dxchan;
1807         if ($dxchan && $dxchan->is_clx) {
1808                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1809         } else {
1810                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1811         }
1812 }
1813
1814 sub disconnect
1815 {
1816         my $self = shift;
1817         my $pc39flag = shift;
1818         my $call = $self->call;
1819
1820         return if $self->{disconnecting}++;
1821
1822         unless ($pc39flag && $pc39flag == 1) {
1823                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1824         }
1825
1826         # get rid of any PC16 and 19s
1827         eph_del_regex("^PC16\\^$call");
1828         eph_del_regex("^PC19\\^.*$call");
1829
1830         # do routing stuff
1831         my $node = Route::Node::get($call);
1832         my @rout;
1833         if ($node) {
1834                 @rout = $node->del($main::routeroot);
1835         }
1836
1837         # unbusy and stop and outgoing mail
1838         my $mref = DXMsg::get_busy($call);
1839         $mref->stop_msg($call) if $mref;
1840
1841         # broadcast to all other nodes that all the nodes connected to via me are gone
1842         unless ($pc39flag && $pc39flag == 2) {
1843                 $self->route_pc21(@rout) if @rout;
1844         }
1845
1846         # remove outstanding pings
1847         delete $pings{$call};
1848
1849         # I was the last node visited
1850     $self->user->node($main::mycall);
1851
1852         # send info to all logged in thingies
1853         $self->tell_login('logoutn');
1854
1855         Log('DXProt', $call . " Disconnected");
1856
1857         $self->SUPER::disconnect;
1858 }
1859
1860
1861 #
1862 # send a talk message to this thingy
1863 #
1864 sub talk
1865 {
1866         my ($self, $from, $to, $via, $line, $origin) = @_;
1867
1868         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1869         $self->send(DXProt::pc10($from, $to, $via, $line, $origin));
1870         Log('talk', $to, $from, $via?$via:$self->call, $line) unless $origin && $origin ne $main::mycall;
1871 }
1872
1873 # send it if it isn't the except list and isn't isolated and still has a hop count
1874 # taking into account filtering and so on
1875 sub send_route
1876 {
1877         my $self = shift;
1878         my $generate = shift;
1879         my $no = shift;     # the no of things to filter on
1880         my $routeit;
1881         my ($filter, $hops);
1882         my @rin;
1883
1884         for (; @_ && $no; $no--) {
1885                 my $r = shift;
1886
1887                 if (!$self->{isolate} && $self->{routefilter}) {
1888                         $filter = undef;
1889                         if ($r) {
1890                                 ($filter, $hops) = $self->{routefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq);
1891                                 if ($filter) {
1892                                         push @rin, $r;
1893                                 } else {
1894                                         dbg("DXPROT: $self->{call}/" . $r->call . " rejected by output filter") if isdbg('chanerr');
1895                                 }
1896                         } else {
1897                                 dbg("was sent a null value") if isdbg('chanerr');
1898                         }
1899                 } else {
1900                         push @rin, $r unless $self->{isolate} && $r->call ne $main::mycall;
1901                 }
1902         }
1903         if (@rin) {
1904                 foreach my $line (&$generate(@rin, @_)) {
1905                         if ($hops) {
1906                                 $routeit = $line;
1907                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1908                         } else {
1909                                 $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
1910                                 next unless $routeit;
1911                         }
1912                         $self->send($routeit);
1913                 }
1914         }
1915 }
1916
1917 sub broadcast_route
1918 {
1919         my $self = shift;
1920         my $generate = shift;
1921         my @dxchan = DXChannel::get_all_nodes();
1922         my $dxchan;
1923         my $line;
1924
1925         unless ($self->{isolate}) {
1926                 foreach $dxchan (@dxchan) {
1927                         next if $dxchan == $self;
1928                         next if $dxchan == $main::me;
1929                         $dxchan->send_route($generate, @_);
1930                 }
1931         }
1932 }
1933
1934 sub route_pc16
1935 {
1936         my $self = shift;
1937         broadcast_route($self, \&pc16, 1, @_);
1938 }
1939
1940 sub route_pc17
1941 {
1942         my $self = shift;
1943         broadcast_route($self, \&pc17, 1, @_);
1944 }
1945
1946 sub route_pc19
1947 {
1948         my $self = shift;
1949         broadcast_route($self, \&pc19, scalar @_, @_);
1950 }
1951
1952 sub route_pc21
1953 {
1954         my $self = shift;
1955         broadcast_route($self, \&pc21, scalar @_, @_);
1956 }
1957
1958 sub route_pc24
1959 {
1960         my $self = shift;
1961         broadcast_route($self, \&pc24, 1, @_);
1962 }
1963
1964 sub route_pc41
1965 {
1966         my $self = shift;
1967         broadcast_route($self, \&pc41, 1, @_);
1968 }
1969
1970 sub route_pc50
1971 {
1972         my $self = shift;
1973         broadcast_route($self, \&pc50, 1, @_);
1974 }
1975
1976 sub route_pc90
1977 {
1978         my $self = shift;
1979         broadcast_route($self, \&pc90, 1, @_);
1980 }
1981
1982 sub in_filter_route
1983 {
1984         my $self = shift;
1985         my $r = shift;
1986         my ($filter, $hops) = (1, 1);
1987
1988         if ($self->{inroutefilter}) {
1989                 ($filter, $hops) = $self->{inroutefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq);
1990                 dbg("PCPROT: $self->{call}/" . $r->call . ' rejected by in_filter_route') if !$filter && isdbg('chanerr');
1991         }
1992         return $filter;
1993 }
1994
1995 sub eph_dup
1996 {
1997         my $s = shift;
1998         my $t = shift || $eph_restime;
1999         my $r;
2000
2001         # chop the end off
2002         $s =~ s/\^H\d\d?\^?\~?$//;
2003         $r = 1 if exists $eph{$s};    # pump up the dup if it keeps circulating
2004         $eph{$s} = $main::systime + $t;
2005         return $r;
2006 }
2007
2008 sub eph_del_regex
2009 {
2010         my $regex = shift;
2011         my ($key, $val);
2012         while (($key, $val) = each %eph) {
2013                 if ($key =~ m{$regex}) {
2014                         delete $eph{$key};
2015                 }
2016         }
2017 }
2018
2019 sub eph_clean
2020 {
2021         my ($key, $val);
2022
2023         while (($key, $val) = each %eph) {
2024                 if ($main::systime >= $val) {
2025                         delete $eph{$key};
2026                 }
2027         }
2028 }
2029
2030 sub eph_list
2031 {
2032         my ($key, $val);
2033         my @out;
2034
2035         while (($key, $val) = each %eph) {
2036                 push @out, $key, $val;
2037         }
2038         return @out;
2039 }
2040
2041 sub run_cmd
2042 {
2043         goto &DXCommandmode::run_cmd;
2044 }
2045 1;
2046 __END__