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 DXCluster;
  19 use DXProtVars;
  20 use DXCommandmode;
  21 use DXLog;
  22 use Spot;
  23 use DXProtout;
  24 use DXDebug;
  25 use Filter;
  26 use Local;
  27 use DXDb;
  28 use AnnTalk;
  29 use Geomag;
  30 use WCY;
  31 use Time::HiRes qw(gettimeofday tv_interval);
  32
  33 use strict;
  34 use vars qw($me $pc11_max_age $pc23_max_age
  35                         $last_hour %pings %rcmds
  36                         %nodehops @baddx $baddxfn
  37                         $allowzero $decode_dk0wcy);
  38
  39 $me = undef;                                    # the channel id for this cluster
  40 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  41 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  42
  43 $last_hour = time;                              # last time I did an hourly periodic update
  44 %pings = ();                    # outstanding ping requests outbound
  45 %rcmds = ();                    # outstanding rcmd requests outbound
  46 %nodehops = ();                 # node specific hop control
  47 @baddx = ();                    # list of illegal spotted callsigns
  48
  49
  50 $baddxfn = "$main::data/baddx.pl";
  51
  52 sub init
  53 {
  54         my $user = DXUser->get($main::mycall);
  55         $DXProt::myprot_version += $main::version*100;
  56         $me = DXProt->new($main::mycall, 0, $user);
  57         $me->{here} = 1;
  58         $me->{state} = "indifferent";
  59         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
  60         confess $@ if $@;
  61         #  $me->{sort} = 'M';    # M for me
  62
  63         # now prime the spot and wwv  duplicates file with data
  64     my @today = Julian::unixtoj(time);
  65         for (Spot::readfile(@today), Spot::readfile(Julian::sub(@today, 1))) {
  66                 Spot::dup(@{$_}[0..3]);
  67         }
  68         for (Geomag::readfile(time)) {
  69                 Geomag::dup(@{$_}[1..5]);
  70         }
  71
  72         # load the baddx file
  73         do "$baddxfn" if -e "$baddxfn";
  74         print "$@\n" if $@;
  75 }
  76
  77 #
  78 # obtain a new connection this is derived from dxchannel
  79 #
  80
  81 sub new
  82 {
  83         my $self = DXChannel::alloc(@_);
  84         return $self;
  85 }
  86
  87 # this is how a pc connection starts (for an incoming connection)
  88 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
  89 # all the crap that comes between).
  90 sub start
  91 {
  92         my ($self, $line, $sort) = @_;
  93         my $call = $self->{call};
  94         my $user = $self->{user};
  95
  96         # remember type of connection
  97         $self->{consort} = $line;
  98         $self->{outbound} = $sort eq 'O';
  99         $self->{priv} = $user->priv;
 100         $self->{lang} = $user->lang;
 101         $self->{isolate} = $user->{isolate};
 102         $self->{consort} = $line;       # save the connection type
 103         $self->{here} = 1;
 104
 105         # get the INPUT filters (these only pertain to Clusters)
 106         $self->{inspotfilter} = Filter::read_in('spots', $call, 1);
 107         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1);
 108         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1);
 109         $self->{inannfilter} = Filter::read_in('ann', $call, 1);
 110
 111         # set unbuffered and no echo
 112         $self->send_now('B',"0");
 113         $self->send_now('E',"0");
 114
 115         # ping neighbour node stuff
 116         my $ping = $user->pingint;
 117         $ping = 5*60 unless defined $ping;
 118         $self->{pingint} = $ping;
 119         $self->{nopings} = $user->nopings || 2;
 120         $self->{pingtime} = [ ];
 121         $self->{pingave} = 0;
 122
 123         # send initialisation string
 124         unless ($self->{outbound}) {
 125                 $self->send(pc38()) if DXNode->get_all();
 126                 $self->send(pc18());
 127                 $self->{lastping} = $main::systime;
 128         } else {
 129                 # remove from outstanding connects queue
 130                 @main::outstanding_connects = grep {$_->{call} ne $call} @main::outstanding_connects;
 131                 $self->{lastping} = $main::systime + $self->pingint / 2;
 132         }
 133         $self->state('init');
 134         $self->pc50_t(time);
 135
 136         # send info to all logged in thingies
 137         $self->tell_login('loginn');
 138
 139         Log('DXProt', "$call connected");
 140 }
 141
 142 #
 143 # This is the normal pcxx despatcher
 144 #
 145 sub normal
 146 {
 147         my ($self, $line) = @_;
 148         my @field = split /\^/, $line;
 149         pop @field if $field[-1] eq '~';
 150
 151 #       print join(',', @field), "\n";
 152
 153         # ignore any lines that don't start with PC
 154         return if !$field[0] =~ /^PC/;
 155
 156         # process PC frames
 157         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 158         return unless $pcno;
 159         return if $pcno < 10 || $pcno > 99;
 160
 161         # dump bad protocol messages unless it is a PC29
 162         if ($line =~ /\%[0-9A-F][0-9A-F]/o && $pcno != 29) {
 163                 dbg('chan', "CORRUPT protocol message - dumped");
 164                 return;
 165         }
 166
 167         # local processing 1
 168         my $pcr;
 169         eval {
 170                 $pcr = Local::pcprot($self, $pcno, @field);
 171         };
 172 #       dbg('local', "Local::pcprot error $@") if $@;
 173         return if $pcr;
 174
 175  SWITCH: {
 176                 if ($pcno == 10) {              # incoming talk
 177
 178                         # is it for me or one of mine?
 179                         my $call = ($field[5] gt ' ') ? $field[5] : $field[2];
 180                         if ($call eq $main::mycall || grep $_ eq $call, DXChannel::get_all_user_calls()) {
 181
 182                                 # yes, it is
 183                                 my $text = unpad($field[3]);
 184                                 Log('talk', $call, $field[1], $field[6], $text);
 185                                 $call = $main::myalias if $call eq $main::mycall;
 186                                 my $ref = DXChannel->get($call);
 187                                 $ref->send("$call de $field[1]: $text") if $ref && $ref->{talk};
 188                         } else {
 189                                 $self->route($field[2], $line); # relay it on its way
 190                         }
 191                         return;
 192                 }
 193
 194                 if ($pcno == 11 || $pcno == 26) { # dx spot
 195
 196                         # route 'foreign' pc26s
 197                         if ($pcno == 26) {
 198                                 if ($field[7] ne $main::mycall) {
 199                                         $self->route($field[7], $line);
 200                                         return;
 201                                 }
 202                         }
 203
 204                         # if this is a 'nodx' node then ignore it
 205                         if (grep $field[7] =~ /^$_/,  @DXProt::nodx_node) {
 206                                 dbg('chan', "Bad DXNode, dropped");
 207                                 return;
 208                         }
 209
 210                         # convert the date to a unix date
 211                         my $d = cltounix($field[3], $field[4]);
 212                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 213                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 214                                 dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 215                                 return;
 216                         }
 217
 218                         # is it 'baddx'
 219                         if (grep $field[2] eq $_, @baddx) {
 220                                 dbg('chan', "Bad DX spot, ignored");
 221                                 return;
 222                         }
 223
 224                         # are any of the crucial fields invalid?
 225             if ($field[2] =~ /[a-z]/ || $field[6] =~ /[a-z]/ || $field[7] =~ /[a-z]/) {
 226                                 dbg('chan', "Spot contains lower case callsigns, rejected");
 227                                 return;
 228                         }
 229
 230                         # do some de-duping
 231                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 232                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 233                                 dbg('chan', "Duplicate Spot ignored\n");
 234                                 return;
 235                         }
 236
 237                         my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 238
 239             #
 240                         # @spot at this point contains:-
 241             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 242                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 243                         # you should be able to route on any of these
 244             #
 245
 246                         # local processing
 247                         my $r;
 248                         eval {
 249                                 $r = Local::spot($self, @spot);
 250                         };
 251 #                       dbg('local', "Local::spot1 error $@") if $@;
 252                         return if $r;
 253
 254                         # DON'T be silly and send on PC26s!
 255                         return if $pcno == 26;
 256
 257                         # send out the filtered spots
 258                         send_dx_spot($self, $line, @spot) if @spot;
 259                         return;
 260                 }
 261
 262                 if ($pcno == 12) {              # announces
 263                         # announce duplicate checking
 264                         $field[3] =~ s/^\s+//;  # remove leading blanks
 265                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 266                                 dbg('chan', "Duplicate Announce ignored\n");
 267                                 return;
 268                         }
 269
 270                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 271
 272                                 # global ann filtering on INPUT
 273                                 if ($self->{inannfilter}) {
 274                                         my ($filter, $hops) = Filter::it($self->{inannfilter}, @field[1..6], $self->{call} );
 275                                         unless ($filter) {
 276                                                 dbg('chan', "Rejected by filter");
 277                                                 return;
 278                                         }
 279                                 }
 280
 281                                 # send it
 282                                 $self->send_announce($line, @field[1..6]);
 283                         } else {
 284                                 $self->route($field[2], $line);
 285                         }
 286
 287                         return;
 288                 }
 289
 290                 if ($pcno == 13) {
 291                         last SWITCH;
 292                 }
 293                 if ($pcno == 14) {
 294                         last SWITCH;
 295                 }
 296                 if ($pcno == 15) {
 297                         last SWITCH;
 298                 }
 299
 300                 if ($pcno == 16) {              # add a user
 301                         my $node = DXCluster->get_exact($field[1]);
 302                         my $dxchan;
 303                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 304                                 # add it to the node table if it isn't present and it's
 305                                 # connected locally
 306                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 307                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 308
 309                         }
 310                         return unless $node; # ignore if havn't seen a PC19 for this one yet
 311                         return unless $node->isa('DXNode');
 312                         if ($node->dxchan != $self) {
 313                                 dbg('chan', "LOOP: $field[1] came in on wrong channel");
 314                                 return;
 315                         }
 316                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 317                                 dbg('chan', "LOOP: $field[1] connected locally");
 318                                 return;
 319                         }
 320                         my $i;
 321
 322                         for ($i = 2; $i < $#field; $i++) {
 323                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 324                                 next if !$call || length $call < 3 || length $call > 8;
 325                                 next if !$confmode;
 326                                 $call = uc $call;
 327                                 next if DXCluster->get_exact($call); # we already have this (loop?)
 328
 329                                 $confmode = $confmode eq '*';
 330                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 331
 332                                 # add this station to the user database, if required
 333                                 $call =~ s/-\d+$//o;        # remove ssid for users
 334                                 my $user = DXUser->get_current($call);
 335                                 $user = DXUser->new($call) if !$user;
 336                                 $user->homenode($node->call) if !$user->homenode;
 337                                 $user->node($node->call);
 338                                 $user->lastin($main::systime) unless DXChannel->get($call);
 339                                 $user->put;
 340                         }
 341
 342                         # queue up any messages (look for privates only)
 343                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 344                         last SWITCH;
 345                 }
 346
 347                 if ($pcno == 17) {              # remove a user
 348                         my $node = DXCluster->get_exact($field[2]);
 349                         my $dxchan;
 350                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 351                                 # add it to the node table if it isn't present and it's
 352                                 # connected locally
 353                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 354                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 355                                 return;
 356                         }
 357                         return unless $node;
 358                         return unless $node->isa('DXNode');
 359                         if ($node->dxchan != $self) {
 360                                 dbg('chan', "LOOP: $field[2] came in on wrong channel");
 361                                 return;
 362                         }
 363                         if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
 364                                 dbg('chan', "LOOP: $field[2] connected locally");
 365                                 return;
 366                         }
 367                         my $ref = DXCluster->get_exact($field[1]);
 368                         $ref->del() if $ref;
 369                         last SWITCH;
 370                 }
 371
 372                 if ($pcno == 18) {              # link request
 373                         $self->state('init');
 374
 375                         # first clear out any nodes on this dxchannel
 376                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 377                         foreach my $node (@gonenodes) {
 378                                 next if $node->dxchan == $DXProt::me;
 379                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 380                                 $node->del();
 381                         }
 382                         $self->send_local_config();
 383                         $self->send(pc20());
 384                         return;             # we don't pass these on
 385                 }
 386
 387                 if ($pcno == 19) {              # incoming cluster list
 388                         my $i;
 389                         my $newline = "PC19^";
 390                         for ($i = 1; $i < $#field-1; $i += 4) {
 391                                 my $here = $field[$i];
 392                                 my $call = uc $field[$i+1];
 393                                 my $confmode = $field[$i+2];
 394                                 my $ver = $field[$i+3];
 395
 396                                 $ver = 5400 if !$ver && $allowzero;
 397
 398                                 # now check the call over
 399                                 my $node = DXCluster->get_exact($call);
 400                                 if ($node) {
 401                                         my $dxchan;
 402                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 403                                                 dbg('chan', "LOOP: $call connected locally");
 404                                         }
 405                                     if ($node->dxchan != $self) {
 406                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 407                                                 next;
 408                                         }
 409                                         dbg('chan', "already have $call");
 410                                         next;
 411                                 }
 412
 413                                 # check for sane parameters
 414                                 next if $ver < 5000; # only works with version 5 software
 415                                 next if length $call < 3; # min 3 letter callsigns
 416
 417                                 # add it to the nodes table and outgoing line
 418                                 $newline .= "$here^$call^$confmode^$ver^";
 419                                 DXNode->new($self, $call, $confmode, $here, $ver);
 420
 421                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 422                                 my $mref = DXMsg::get_busy($call);
 423                                 $mref->stop_msg($call) if $mref;
 424
 425                                 # add this station to the user database, if required (don't remove SSID from nodes)
 426                                 my $user = DXUser->get_current($call);
 427                                 if (!$user) {
 428                                         $user = DXUser->new($call);
 429                                         $user->sort('A');
 430                                         $user->priv(1);                   # I have relented and defaulted nodes
 431                                         $self->{priv} = 1;                # to user RCMDs allowed
 432                                         $user->homenode($call);
 433                                         $user->node($call);
 434                                 }
 435                                 $user->lastin($main::systime) unless DXChannel->get($call);
 436                                 $user->put;
 437                         }
 438
 439                         return if $newline eq "PC19^";
 440
 441                         # add hop count
 442                         $newline .=  get_hops(19) . "^";
 443                         $line = $newline;
 444                         last SWITCH;
 445                 }
 446
 447                 if ($pcno == 20) {              # send local configuration
 448                         $self->send_local_config();
 449                         $self->send(pc22());
 450                         $self->state('normal');
 451                         return;
 452                 }
 453
 454                 if ($pcno == 21) {              # delete a cluster from the list
 455                         my $call = uc $field[1];
 456                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 457                                 my $node = DXCluster->get_exact($call);
 458                                 if ($node) {
 459                                         if ($node->dxchan != $self) {
 460                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 461                                                 return;
 462                                         }
 463                                         my $dxchan;
 464                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 465                                                 dbg('chan', "LOOP: $call connected locally");
 466                                                 return;
 467                                         }
 468                                         $node->del();
 469                                 } else {
 470                                         dbg('chan', "$call not in table, dropped");
 471                                         return;
 472                                 }
 473                         }
 474                         last SWITCH;
 475                 }
 476
 477                 if ($pcno == 22) {
 478                         $self->state('normal');
 479                         return;
 480                 }
 481
 482                 if ($pcno == 23 || $pcno == 27) { # WWV info
 483
 484                         # route 'foreign' pc27s
 485                         if ($pcno == 27) {
 486                                 if ($field[8] ne $main::mycall) {
 487                                         $self->route($field[8], $line);
 488                                         return;
 489                                 }
 490                         }
 491
 492                         # do some de-duping
 493                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 494                         my $sfi = unpad($field[3]);
 495                         my $k = unpad($field[4]);
 496                         my $i = unpad($field[5]);
 497                         my ($r) = $field[6] =~ /R=(\d+)/;
 498                         $r = 0 unless $r;
 499                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 500                                 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
 501                                 return;
 502                         }
 503                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 504                                 dbg('chan', "Dup WWV Spot ignored\n");
 505                                 return;
 506                         }
 507                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 508
 509                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 510
 511                         my $rep;
 512                         eval {
 513                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 514                         };
 515 #                       dbg('local', "Local::wwv2 error $@") if $@;
 516                         return if $rep;
 517
 518                         # DON'T be silly and send on PC27s!
 519                         return if $pcno == 27;
 520
 521                         # broadcast to the eager world
 522                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 523                         return;
 524                 }
 525
 526                 if ($pcno == 24) {              # set here status
 527                         my $call = uc $field[1];
 528                         my $ref = DXCluster->get_exact($call);
 529                         $ref->here($field[2]) if $ref;
 530                         last SWITCH;
 531                 }
 532
 533                 if ($pcno == 25) {      # merge request
 534                         if ($field[1] ne $main::mycall) {
 535                                 $self->route($field[1], $line);
 536                                 return;
 537                         }
 538                         if ($field[2] eq $main::mycall) {
 539                                 dbg('chan', "Trying to merge to myself, ignored");
 540                                 return;
 541                         }
 542
 543                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 544
 545                         # spots
 546                         if ($field[3] > 0) {
 547                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 548                                 my $in;
 549                                 foreach $in (@in) {
 550                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 551                                 }
 552                         }
 553
 554                         # wwv
 555                         if ($field[4] > 0) {
 556                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 557                                 my $in;
 558                                 foreach $in (@in) {
 559                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 560                                 }
 561                         }
 562                         return;
 563                 }
 564
 565                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 566                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 567                                 DXMsg::process($self, $line);
 568                         } else {
 569                                 $self->route($field[1], $line);
 570                         }
 571                         return;
 572                 }
 573
 574                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 575                         if ($field[1] eq $main::mycall) {
 576                                 my $ref = DXUser->get_current($field[2]);
 577                                 my $cref = DXCluster->get($field[2]);
 578                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 579                                 unless ($field[3] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 580                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 581                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 582                                                 my $oldpriv = $self->{priv};
 583                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 584                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 585                                                 $self->{priv} = $oldpriv;
 586                                                 for (@in) {
 587                                                         s/\s*$//og;
 588                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 589                                                         Log('rcmd', 'out', $field[2], $_);
 590                                                 }
 591                                                 delete $self->{remotecmd};
 592                                         } else {
 593                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 594                                         }
 595                                 } else {
 596                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 597                                 }
 598                         } else {
 599                                 my $ref = DXUser->get_current($field[1]);
 600                                 if ($ref && $ref->is_clx) {
 601                                         route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 602                                 } else {
 603                                         $self->route($field[1], $line);
 604                                 }
 605                         }
 606                         return;
 607                 }
 608
 609                 if ($pcno == 35) {              # remote command replies
 610                         if ($field[1] eq $main::mycall) {
 611                                 my $s = $rcmds{$field[2]};
 612                                 if ($s) {
 613                                         my $dxchan = DXChannel->get($s->{call});
 614                                         $dxchan->send($field[3]) if $dxchan;
 615                                         delete $rcmds{$field[2]} if !$dxchan;
 616                                 }
 617                         } else {
 618                                 my $ref = DXUser->get_current($field[1]);
 619                                 if ($ref && $ref->is_clx) {
 620                                         route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 621                                 } else {
 622                                         $self->route($field[1], $line);
 623                                 }
 624                         }
 625                         return;
 626                 }
 627
 628                 # for pc 37 see 44 onwards
 629
 630                 if ($pcno == 38) {              # node connected list from neighbour
 631                         return;
 632                 }
 633
 634                 if ($pcno == 39) {              # incoming disconnect
 635                         $self->disconnect(1);
 636                         return;
 637                 }
 638
 639                 if ($pcno == 41) {              # user info
 640                         # add this station to the user database, if required
 641                         my $user = DXUser->get_current($field[1]);
 642                         if (!$user) {
 643                                 # then try without an SSID
 644                                 $field[1] =~ s/-\d+$//o;
 645                                 $user = DXUser->get_current($field[1]);
 646                         }
 647                         $user = DXUser->new($field[1]) if !$user;
 648
 649                         if ($field[2] == 1) {
 650                                 $user->name($field[3]);
 651                         } elsif ($field[2] == 2) {
 652                                 $user->qth($field[3]);
 653                         } elsif ($field[2] == 3) {
 654                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 655                                 $user->lat($lat);
 656                                 $user->long($long);
 657                         } elsif ($field[2] == 4) {
 658                                 $user->homenode($field[3]);
 659                         }
 660                         $user->put;
 661                         last SWITCH;
 662                 }
 663                 if ($pcno == 43) {
 664                         last SWITCH;
 665                 }
 666                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 667                         DXDb::process($self, $line);
 668                         return;
 669                 }
 670
 671                 if ($pcno == 50) {              # keep alive/user list
 672                         my $node = DXCluster->get_exact($field[1]);
 673                         if ($node) {
 674                                 return unless $node->isa('DXNode');
 675                                 return unless $node->dxchan == $self;
 676                                 $node->update_users($field[2]);
 677                         }
 678                         last SWITCH;
 679                 }
 680
 681                 if ($pcno == 51) {              # incoming ping requests/answers
 682
 683                         # is it for us?
 684                         if ($field[1] eq $main::mycall) {
 685                                 my $flag = $field[3];
 686                                 if ($flag == 1) {
 687                                         $self->send(pc51($field[2], $field[1], '0'));
 688                                 } else {
 689                                         # it's a reply, look in the ping list for this one
 690                                         my $ref = $pings{$field[2]};
 691                                         if ($ref) {
 692                                                 my $tochan =  DXChannel->get($field[2]);
 693                                                 while (@$ref) {
 694                                                         my $r = shift @$ref;
 695                                                         my $dxchan = DXChannel->get($r->{call});
 696                                                         next unless $dxchan;
 697                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 698                                                         if ($dxchan->is_user) {
 699                                                                 my $s = sprintf "%.2f", $t;
 700                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 701                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 702                                                         } elsif ($dxchan->is_node) {
 703                                                                 if ($tochan) {
 704                                                                         $tochan->{nopings} = 2; # pump up the timer
 705                                                                         push @{$tochan->{pingtime}}, $t;
 706                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 707                                                                         my $st;
 708                                                                         for (@{$tochan->{pingtime}}) {
 709                                                                                 $st += $_;
 710                                                                         }
 711                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 712                                                                 }
 713                                                         }
 714                                                 }
 715                                         }
 716                                 }
 717                         } else {
 718                                 # route down an appropriate thingy
 719                                 $self->route($field[1], $line);
 720                         }
 721                         return;
 722                 }
 723
 724                 if ($pcno == 73) {  # WCY broadcasts
 725
 726                         # do some de-duping
 727                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 728                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 729                                 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
 730                                 return;
 731                         }
 732                         @field = map { unpad($_) } @field;
 733                         if (WCY::dup($d,@field[3..7])) {
 734                                 dbg('chan', "Dup WCY Spot ignored\n");
 735                                 return;
 736                         }
 737
 738                         my $wcy = WCY::update($d, @field[2..12]);
 739
 740                         my $rep;
 741                         eval {
 742                                 $rep = Local::wwv($self, @field[1..12]);
 743                         };
 744                         # dbg('local', "Local::wcy error $@") if $@;
 745                         return if $rep;
 746
 747                         # broadcast to the eager world
 748                         send_wcy_spot($self, $line, $d, @field[2..12]);
 749                         return;
 750                 }
 751
 752                 if ($pcno == 84) { # remote commands (incoming)
 753                         if ($field[1] eq $main::mycall) {
 754                                 my $ref = DXUser->get_current($field[2]);
 755                                 my $cref = DXCluster->get($field[2]);
 756                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
 757                                 unless ($field[3] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 758                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 759                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 760                                                 my $oldpriv = $self->{priv};
 761                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 762                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
 763                                                 $self->{priv} = $oldpriv;
 764                                                 for (@in) {
 765                                                         s/\s*$//og;
 766                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
 767                                                         Log('rcmd', 'out', $field[2], $_);
 768                                                 }
 769                                                 delete $self->{remotecmd};
 770                                         } else {
 771                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
 772                                         }
 773                                 } else {
 774                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
 775                                 }
 776                         } else {
 777                                 my $ref = DXUser->get_current($field[1]);
 778                                 if ($ref && $ref->is_clx) {
 779                                         $self->route($field[1], $line);
 780                                 } else {
 781                                         route($field[1], pc34($field[2], $field[1], $field[3]));
 782                                 }
 783                         }
 784                         return;
 785                 }
 786
 787                 if ($pcno == 85) {              # remote command replies
 788                         if ($field[1] eq $main::mycall) {
 789                                 my $dxchan = DXChannel->get($field[3]);
 790                                 if ($dxchan) {
 791                                         $dxchan->send($field[4]);
 792                                 } else {
 793                                         my $s = $rcmds{$field[2]};
 794                                         if ($s) {
 795                                                 $dxchan = DXChannel->get($s->{call});
 796                                                 $dxchan->send($field[4]) if $dxchan;
 797                                                 delete $rcmds{$field[2]} if !$dxchan;
 798                                         }
 799                                 }
 800                         } else {
 801                                 my $ref = DXUser->get_current($field[1]);
 802                                 if ($ref && $ref->is_clx) {
 803                                         $self->route($field[1], $line);
 804                                 } else {
 805                                         route($field[1], pc35($field[2], $field[1], $field[3]));
 806                                 }
 807                         }
 808                         return;
 809                 }
 810         }
 811
 812         # if get here then rebroadcast the thing with its Hop count decremented (if
 813         # there is one). If it has a hop count and it decrements to zero then don't
 814         # rebroadcast it.
 815         #
 816         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
 817         #        REBROADCAST!!!!
 818         #
 819
 820         unless ($self->{isolate}) {
 821                 broadcast_ak1a($line, $self); # send it to everyone but me
 822         }
 823 }
 824
 825 #
 826 # This is called from inside the main cluster processing loop and is used
 827 # for despatching commands that are doing some long processing job
 828 #
 829 sub process
 830 {
 831         my $t = time;
 832         my @dxchan = DXChannel->get_all();
 833         my $dxchan;
 834
 835         foreach $dxchan (@dxchan) {
 836                 next unless $dxchan->is_node();
 837                 next if $dxchan == $me;
 838
 839                 # send a pc50 out on this channel
 840                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
 841                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
 842                         $dxchan->pc50_t($t);
 843                 }
 844
 845                 # send a ping out on this channel
 846                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
 847                         if ($dxchan->{nopings} <= 0) {
 848                                 $dxchan->disconnect;
 849                         } else {
 850                                 addping($main::mycall, $dxchan->call);
 851                                 $dxchan->{nopings} -= 1;
 852                                 $dxchan->{lastping} = $t;
 853                         }
 854                 }
 855         }
 856
 857         my $key;
 858         my $val;
 859         my $cutoff;
 860         if ($main::systime - 3600 > $last_hour) {
 861                 Spot::process;
 862                 Geomag::process;
 863                 AnnTalk::process;
 864                 $last_hour = $main::systime;
 865         }
 866 }
 867
 868 #
 869 # finish up a pc context
 870 #
 871 sub finish
 872 {
 873         my $self = shift;
 874         my $call = $self->call;
 875         my $conn = shift;
 876         my $ref = DXCluster->get_exact($call);
 877
 878         # unbusy and stop and outgoing mail
 879         my $mref = DXMsg::get_busy($call);
 880         $mref->stop_msg($call) if $mref;
 881
 882         # broadcast to all other nodes that all the nodes connected to via me are gone
 883         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 884         my $node;
 885
 886         foreach $node (@gonenodes) {
 887                 next if $node->call eq $call;
 888                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
 889                 $node->del();
 890         }
 891
 892         # remove outstanding pings
 893         delete $pings{$call};
 894
 895         # now broadcast to all other ak1a nodes that I have gone
 896         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
 897
 898         # I was the last node visited
 899     $self->user->node($main::mycall);
 900
 901         # send info to all logged in thingies
 902         $self->tell_login('logoutn');
 903
 904         Log('DXProt', $call . " Disconnected");
 905         $ref->del() if $ref;
 906 }
 907
 908 #
 909 # some active measures
 910 #
 911 sub send_dx_spot
 912 {
 913         my $self = shift;
 914         my $line = shift;
 915         my @dxchan = DXChannel->get_all();
 916         my $dxchan;
 917
 918         # send it if it isn't the except list and isn't isolated and still has a hop count
 919         # taking into account filtering and so on
 920         foreach $dxchan (@dxchan) {
 921                 my $routeit;
 922                 my ($filter, $hops);
 923
 924                 if ($dxchan->{spotfilter}) {
 925                     ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
 926                         next unless $filter;
 927                 }
 928
 929                 if ($dxchan->is_node) {
 930                         next if $dxchan == $self;
 931                         if ($hops) {
 932                                 $routeit = $line;
 933                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
 934                         } else {
 935                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
 936                                 next unless $routeit;
 937                         }
 938                         if ($filter) {
 939                                 $dxchan->send($routeit) if $routeit;
 940                         } else {
 941                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
 942                         }
 943                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
 944                         my $buf = Spot::formatb($_[0], $_[1], $_[2], $_[3], $_[4]);
 945                         $buf .= "\a\a" if $dxchan->{beep};
 946                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
 947                                 $dxchan->send($buf);
 948                         } else {
 949                                 $dxchan->delay($buf);
 950                         }
 951                 }
 952         }
 953 }
 954
 955 sub send_wwv_spot
 956 {
 957         my $self = shift;
 958         my $line = shift;
 959         my @dxchan = DXChannel->get_all();
 960         my $dxchan;
 961
 962         # send it if it isn't the except list and isn't isolated and still has a hop count
 963         # taking into account filtering and so on
 964         foreach $dxchan (@dxchan) {
 965                 my $routeit;
 966                 my ($filter, $hops);
 967
 968                 if ($dxchan->{wwvfilter}) {
 969                          ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} );
 970                          next unless $filter;
 971                 }
 972                 if ($dxchan->is_node) {
 973                         next if $dxchan == $self;
 974                         if ($hops) {
 975                                 $routeit = $line;
 976                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
 977                         } else {
 978                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
 979                                 next unless $routeit;
 980                         }
 981                         if ($filter) {
 982                                 $dxchan->send($routeit) if $routeit;
 983                         } else {
 984                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
 985
 986                         }
 987                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
 988                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
 989                         $buf .= "\a\a" if $dxchan->{beep};
 990                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
 991                                 $dxchan->send($buf);
 992                         } else {
 993                                 $dxchan->delay($buf);
 994                         }
 995                 }
 996         }
 997 }
 998
 999 sub send_wcy_spot
1000 {
1001         my $self = shift;
1002         my $line = shift;
1003         my @dxchan = DXChannel->get_all();
1004         my $dxchan;
1005
1006         # send it if it isn't the except list and isn't isolated and still has a hop count
1007         # taking into account filtering and so on
1008         foreach $dxchan (@dxchan) {
1009                 my $routeit;
1010                 my ($filter, $hops);
1011
1012                 if ($dxchan->{wcyfilter}) {
1013                          ($filter, $hops) = Filter::it($dxchan->{wcyfilter}, @_, $self->{call} );
1014                          next unless $filter;
1015                 }
1016                 if ($dxchan->is_clx || $dxchan->is_spider) {
1017                         next if $dxchan == $self;
1018                         if ($hops) {
1019                                 $routeit = $line;
1020                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1021                         } else {
1022                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1023                                 next unless $routeit;
1024                         }
1025                         if ($filter) {
1026                                 $dxchan->send($routeit) if $routeit;
1027                         } else {
1028                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1029                         }
1030                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1031                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1032                         $buf .= "\a\a" if $dxchan->{beep};
1033                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1034                                 $dxchan->send($buf);
1035                         } else {
1036                                 $dxchan->delay($buf);
1037                         }
1038                 }
1039         }
1040 }
1041
1042 # send an announce
1043 sub send_announce
1044 {
1045         my $self = shift;
1046         my $line = shift;
1047         my @dxchan = DXChannel->get_all();
1048         my $dxchan;
1049         my $text = unpad($_[2]);
1050         my $target;
1051         my $to = 'To ';
1052
1053         if ($_[3] eq '*') {     # sysops
1054                 $target = "SYSOP";
1055         } elsif ($_[3] gt ' ') { # speciality list handling
1056                 my ($name) = split /\./, $_[3];
1057                 $target = "$name"; # put the rest in later (if bothered)
1058         }
1059
1060         if ($_[5] eq '1') {
1061                 $target = "WX";
1062                 $to = '';
1063         }
1064         $target = "All" if !$target;
1065
1066         Log('ann', $target, $_[0], $text);
1067
1068         # send it if it isn't the except list and isn't isolated and still has a hop count
1069         # taking into account filtering and so on
1070         foreach $dxchan (@dxchan) {
1071                 my $routeit;
1072                 my ($filter, $hops);
1073
1074                 if ($dxchan->{annfilter}) {
1075                         ($filter, $hops) = Filter::it($dxchan->{annfilter}, @_, $self->{call} );
1076                         next unless $filter;
1077                 }
1078                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1079                         next if $dxchan == $self;
1080                         if ($hops) {
1081                                 $routeit = $line;
1082                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1083                         } else {
1084                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1085                                 next unless $routeit;
1086                         }
1087                         if ($filter) {
1088                                 $dxchan->send($routeit) if $routeit;
1089                         } else {
1090                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1091
1092                         }
1093                 } elsif ($dxchan->is_user && $dxchan->{ann}) {
1094                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1095                         my $buf = "$to$target de $_[0]: $text";
1096                         $buf .= "\a\a" if $dxchan->{beep};
1097                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1098                                 $dxchan->send($buf);
1099                         } else {
1100                                 $dxchan->delay($buf);
1101                         }
1102                 }
1103         }
1104 }
1105
1106 sub send_local_config
1107 {
1108         my $self = shift;
1109         my $n;
1110         my @nodes;
1111         my @localnodes;
1112         my @remotenodes;
1113
1114         # send our nodes
1115         if ($self->{isolate}) {
1116                 @localnodes = (DXCluster->get_exact($main::mycall));
1117         } else {
1118                 # create a list of all the nodes that are not connected to this connection
1119                 # and are not themselves isolated, this to make sure that isolated nodes
1120         # don't appear outside of this node
1121                 @nodes = DXNode::get_all();
1122                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1123                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1124                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1125                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1126                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1127                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1128         }
1129
1130         my @s = $me->pc19(@localnodes, @remotenodes);
1131         for (@s) {
1132                 my $routeit = adjust_hops($self, $_);
1133                 $self->send($routeit) if $routeit;
1134         }
1135
1136         # get all the users connected on the above nodes and send them out
1137         foreach $n (@localnodes, @remotenodes) {
1138                 my @users = values %{$n->list};
1139                 my @s = pc16($n, @users);
1140                 for (@s) {
1141                         my $routeit = adjust_hops($self, $_);
1142                         $self->send($routeit) if $routeit;
1143                 }
1144         }
1145 }
1146
1147 #
1148 # route a message down an appropriate interface for a callsign
1149 #
1150 # is called route(to, pcline);
1151 #
1152 sub route
1153 {
1154         my ($self, $call, $line) = @_;
1155         my $cl = DXCluster->get_exact($call);
1156         if ($cl) {       # don't route it back down itself
1157                 if (ref $self && $call eq $self->{call}) {
1158                         dbg('chan', "Trying to route back to source, dropped");
1159                         return;
1160                 }
1161                 my $hops;
1162                 my $dxchan = $cl->{dxchan};
1163                 if ($dxchan) {
1164                         my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1165                         if ($routeit) {
1166                                 $dxchan->send($routeit) if $dxchan;
1167                         }
1168                 }
1169         }
1170 }
1171
1172 # broadcast a message to all clusters taking into account isolation
1173 # [except those mentioned after buffer]
1174 sub broadcast_ak1a
1175 {
1176         my $s = shift;                          # the line to be rebroadcast
1177         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1178         my @dxchan = DXChannel::get_all_ak1a();
1179         my $dxchan;
1180
1181         # send it if it isn't the except list and isn't isolated and still has a hop count
1182         foreach $dxchan (@dxchan) {
1183                 next if grep $dxchan == $_, @except;
1184                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1185                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1186         }
1187 }
1188
1189 # broadcast a message to all clusters ignoring isolation
1190 # [except those mentioned after buffer]
1191 sub broadcast_all_ak1a
1192 {
1193         my $s = shift;                          # the line to be rebroadcast
1194         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1195         my @dxchan = DXChannel::get_all_ak1a();
1196         my $dxchan;
1197
1198         # send it if it isn't the except list and isn't isolated and still has a hop count
1199         foreach $dxchan (@dxchan) {
1200                 next if grep $dxchan == $_, @except;
1201                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1202                 $dxchan->send($routeit);
1203         }
1204 }
1205
1206 # broadcast to all users
1207 # storing the spot or whatever until it is in a state to receive it
1208 sub broadcast_users
1209 {
1210         my $s = shift;                          # the line to be rebroadcast
1211         my $sort = shift;           # the type of transmission
1212         my $fref = shift;           # a reference to an object to filter on
1213         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1214         my @dxchan = DXChannel::get_all_users();
1215         my $dxchan;
1216         my @out;
1217
1218         foreach $dxchan (@dxchan) {
1219                 next if grep $dxchan == $_, @except;
1220                 push @out, $dxchan;
1221         }
1222         broadcast_list($s, $sort, $fref, @out);
1223 }
1224
1225 # broadcast to a list of users
1226 sub broadcast_list
1227 {
1228         my $s = shift;
1229         my $sort = shift;
1230         my $fref = shift;
1231         my $dxchan;
1232
1233         foreach $dxchan (@_) {
1234                 my $filter = 1;
1235
1236                 if ($sort eq 'dx') {
1237                     next unless $dxchan->{dx};
1238                         ($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
1239                         next unless $filter;
1240                 }
1241                 next if $sort eq 'ann' && !$dxchan->{ann};
1242                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1243                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1244                 next if $sort eq 'wx' && !$dxchan->{wx};
1245
1246                 $s =~ s/\a//og unless $dxchan->{beep};
1247
1248                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1249                         $dxchan->send($s);
1250                 } else {
1251                         $dxchan->delay($s);
1252                 }
1253         }
1254 }
1255
1256
1257 #
1258 # obtain the hops from the list for this callsign and pc no
1259 #
1260
1261 sub get_hops
1262 {
1263         my $pcno = shift;
1264         my $hops = $DXProt::hopcount{$pcno};
1265         $hops = $DXProt::def_hopcount if !$hops;
1266         return "H$hops";
1267 }
1268
1269 #
1270 # adjust the hop count on a per node basis using the user loadable
1271 # hop table if available or else decrement an existing one
1272 #
1273
1274 sub adjust_hops
1275 {
1276         my $self = shift;
1277         my $s = shift;
1278         my $call = $self->{call};
1279         my $hops;
1280
1281         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1282                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1283                 confess "$call called adjust_hops with '$s'" unless $pcno;
1284                 my $ref = $nodehops{$call} if %nodehops;
1285                 if ($ref) {
1286                         my $newhops = $ref->{$pcno};
1287                         return "" if defined $newhops && $newhops == 0;
1288                         $newhops = $ref->{default} unless $newhops;
1289                         return "" if defined $newhops && $newhops == 0;
1290                         $newhops = $hops if !$newhops;
1291                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1292                 } else {
1293                         # simply decrement it
1294                         $hops--;
1295                         return "" if !$hops;
1296                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1297                 }
1298         }
1299         return $s;
1300 }
1301
1302 #
1303 # load hop tables
1304 #
1305 sub load_hops
1306 {
1307         my $self = shift;
1308         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1309         do "$main::data/hop_table.pl";
1310         return $@ if $@;
1311         return 0;
1312 }
1313
1314
1315 # add a ping request to the ping queues
1316 sub addping
1317 {
1318         my ($from, $to) = @_;
1319         my $ref = $pings{$to} || [];
1320         my $r = {};
1321         $r->{call} = $from;
1322         $r->{t} = [ gettimeofday ];
1323         route(undef, $to, pc51($to, $main::mycall, 1));
1324         push @$ref, $r;
1325         $pings{$to} = $ref;
1326 }
1327
1328 # add a rcmd request to the rcmd queues
1329 sub addrcmd
1330 {
1331         my ($self, $to, $cmd) = @_;
1332
1333         my $r = {};
1334         $r->{call} = $self->{call};
1335         $r->{t} = $main::systime;
1336         $r->{cmd} = $cmd;
1337         $rcmds{$to} = $r;
1338
1339         my $ref = DXCluster->get_exact($to);
1340     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1341                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1342         } else {
1343                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1344         }
1345 }
1346
1347 sub disconnect
1348 {
1349         my $self = shift;
1350         my $nopc39 = shift;
1351
1352         if ($self->{conn} && !$nopc39) {
1353                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1354         }
1355
1356         $self->SUPER::disconnect;
1357 }
1358 1;
1359 __END__