add DXCIDR, fix version no tracking
[spider.git] / perl / DXProt.pm
index ca17f4a6430cd8d0cfd4c31e020c7c5001b7b362..b6e959e7ddc23b5dcc8109347ff5552fd00d3af0 100644 (file)
@@ -1 +1,1694 @@
-#!/usr/bin/perl## This module impliments the protocal mode for a dx cluster## Copyright (c) 1998 Dirk Koopman G1TLH## $Id$#package DXProt;@ISA = qw(DXChannel);use DXUtil;use DXChannel;use DXUser;use DXM;use DXProtVars;use DXCommandmode;use DXLog;use Spot;use DXProtout;use DXDebug;use Filter;use Local;use DXDb;use AnnTalk;use Geomag;use WCY;use BadWords;use DXHash;use Route;use Route::Node;use Script;use RouteDB;use DXProtHandle;use strict;use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime                 $last_hour $last10 %eph  %pings %rcmds $ann_to_talk                     $pingint $obscount %pc19list $chatdupeage $chatimportfn                 $investigation_int $pc19_version $myprot_version                        %nodehops $baddx $badspotter $badnode $censorpc $rspfcheck                      $allowzero $decode_dk0wcy $send_opernam @checklist                      $eph_pc15_restime $pc92_update_period $last_pc92_update                 %pc92_find $pc92_find_timeout              );$pc11_max_age = 1*3600;                    # the maximum age for an incoming 'real-time' pc11$pc23_max_age = 1*3600;                       # the maximum age for an incoming 'real-time' pc23$last_hour = time;                            # last time I did an hourly periodic update%rcmds = ();                    # outstanding rcmd requests outbound%nodehops = ();                 # node specific hop control%pc19list = ();                                       # list of outstanding PC19s that haven't had PC16s on them$censorpc = 1;                                        # Do a BadWords::check on text fields and reject things                                                         # loads of 'bad things'$baddx = new DXHash "baddx";$badspotter = new DXHash "badspotter";$badnode = new DXHash "badnode";$last10 = $last_pc50 = time;$ann_to_talk = 1;$rspfcheck = 1;$eph_restime = 180;$eph_info_restime = 60*60;$eph_pc15_restime = 6*60;$eph_pc34_restime = 30;$pingint = 5*60;$obscount = 2;$chatdupeage = 20 * 60 * 60;$chatimportfn = "$main::root/chat_import";$investigation_int = 12*60*60;    # time between checks to see if we can see this node$pc19_version = 5466;                       # the visible version no for outgoing PC19s generated from pc59$pc92_update_period = 30*60;     # the period between PC92 C updates$last_pc92_update = time + int rand(180);            # the last time a PC92 config update%pc92_find = ();                            # outstanding pc92 find operations$pc92_find_timeout = 30;              # maximum time to wait for a reply@checklist =( [ qw(i c c m bp bc c) ],                        # pc10 [ qw(i f m d t m c c h) ],               # pc11 [ qw(i c bm m bm bm p h) ],              # pc12 [ qw(i c h) ],                                   # [ qw(i c h) ],                                        # [ qw(i c m h) ],                                      # undef ,                                               # pc16 has to be validated manually [ qw(i c c h) ],                                    # pc17 [ qw(i m n) ],                                   # pc18 undef ,                                          # pc19 has to be validated manually undef ,                                             # pc20 no validation [ qw(i c m h) ],                                   # pc21 undef ,                                          # pc22 no validation [ qw(i d n n n n m c c h) ],               # pc23 [ qw(i c p h) ],                                 # pc24 [ qw(i c c n n) ],                               # pc25 [ qw(i f m d t m c c bc) ],              # pc26 [ qw(i d n n n n m c c bc) ],    # pc27 [ qw(i c c m c d t p m bp n p bp bc) ], # pc28 [ qw(i c c n m) ],                                # pc29 [ qw(i c c n) ],                                 # pc30 [ qw(i c c n) ],                                 # pc31 [ qw(i c c n) ],                                 # pc32 [ qw(i c c n) ],                                 # pc33 [ qw(i c c m) ],                                 # pc34 [ qw(i c c m) ],                                 # pc35 [ qw(i c c m) ],                                 # pc36 [ qw(i c c n m) ],                               # pc37 undef,                                                   # pc38 not interested [ qw(i c m) ],                                    # pc39 [ qw(i c c m p n) ],                             # pc40 [ qw(i c n m h) ],                               # pc41 [ qw(i c c n) ],                                 # pc42 undef,                                                   # pc43 don't handle it [ qw(i c c n m m c) ],                   # pc44 [ qw(i c c n m) ],                               # pc45 [ qw(i c c n) ],                                 # pc46 undef,                                                   # pc47 undef,                                                   # pc48 [ qw(i c m h) ],                                 # pc49 [ qw(i c n h) ],                                 # pc50 [ qw(i c c n) ],                                 # pc51 undef, undef, undef, undef, undef, undef, undef, undef, undef,                                                   # pc60 undef, undef, undef, undef, undef, undef, undef, undef, undef, undef,                                                    # pc70 undef, undef, [ qw(i d n n n n n n m m m c c h) ],       # pc73 undef, undef, undef, undef, undef, undef, undef,                                                 # pc80 undef, undef, undef, [ qw(i c c c m) ],                          # pc84 [ qw(i c c c m) ],                               # pc85 undef, undef, undef, undef, [ qw(i c n) ],                                       # pc90);# use the entry in the check list to check the field list presented# return OK if line NOT in check list (for now)sub check{    my $n = shift;  $n -= 10;       return 0 if $n < 0 || $n > @checklist;  my $ref = $checklist[$n];       return 0 unless ref $ref;       my $i;  for ($i = 1; $i < @$ref; $i++) {                my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;          return 0 unless $act;           next if $blank && $_[$i] =~ /^[ \*]$/;          if ($act eq 'c') {                      return $i unless is_callsign($_[$i]);           } elsif ($act eq 'i') {                 ;                                       # do nothing            } elsif ($act eq 'm') {                 return $i unless is_pctext($_[$i]);             } elsif ($act eq 'p') {                 return $i unless is_pcflag($_[$i]);             } elsif ($act eq 'f') {                 return $i unless is_freq($_[$i]);               } elsif ($act eq 'n') {                 return $i unless $_[$i] =~ /^[\d ]+$/;          } elsif ($act eq 'h') {                 return $i unless $_[$i] =~ /^H\d\d?$/;          } elsif ($act eq 'd') {                 return $i unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;              } elsif ($act eq 't') {                 return $i unless $_[$i] =~ /^[012]\d[012345]\dZ$/;              }       }       return 0;}sub init{     do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl"; confess $@ if $@;       my $user = DXUser->get($main::mycall);  die "User $main::mycall not setup or disappeared RTFM" unless $user;    $myprot_version += $main::version*100;  $main::me = DXProt->new($main::mycall, 0, $user);       $main::me->{here} = 1;  $main::me->{state} = "indifferent";     $main::me->{sort} = 'S';    # S for spider      $main::me->{priv} = 9;  $main::me->{metric} = 0;        $main::me->{pingave} = 0;       $main::me->{registered} = 1;    $main::me->{version} = $main::version;  $main::me->{build} = $main::build;      $main::me->{do_pc9x} = 1;}## obtain a new connection this is derived from dxchannel#sub new{    my $self = DXChannel::alloc(@_);        # add this node to the table, the values get filled in later    my $pkg = shift;        my $call = shift;       # if we have an entry already, then send a PC21 to all connect  # old style connections, because we are about to get the real deal      if (my $ref = Route::Node::get($call)) {                dbg("ROUTE: $call is already in the routing table, deleting") if isdbg('route');                my @rout = $ref->delete;                $self->route_pc21($main::mycall, undef, @rout) if @rout;        }       $main::routeroot->add($call, '5000', Route::here(1)) if $call ne $main::mycall; return $self;}# this is how a pc connection starts (for an incoming connection)# issue a PC38 followed by a PC18, then wait for a PC20 (remembering# all the crap that comes between).sub start{        my ($self, $line, $sort) = @_;  my $call = $self->{call};       my $user = $self->{user};       # log it        my $host = $self->{conn}->{peerhost};   $host ||= "AGW Port #$self->{conn}->{agwport}" if exists $self->{conn}->{agwport};      $host ||= "unknown";    Log('DXProt', "$call connected from $host");    # remember type of connection   $self->{consort} = $line;       $self->{outbound} = $sort eq 'O';       my $priv = $user->priv; $priv = $user->priv(1) unless $priv;    $self->{priv} = $priv;     # other clusters can always be 'normal' users        $self->{lang} = $user->lang || 'en';    $self->{isolate} = $user->{isolate};    $self->{consort} = $line;       # save the connection type      $self->{here} = 1;      $self->{width} = 80;    # sort out registration $self->{registered} = 1;        # get the output filters        $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);       $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);     $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);     $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;    $self->{routefilter} = Filter::read_in('route', $call, 0) || Filter::read_in('route', 'node_default', 0) unless $self->{isolate} ;      # get the INPUT filters (these only pertain to Clusters)        $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);     $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);   $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);   $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);   $self->{inroutefilter} = Filter::read_in('route', $call, 1) || Filter::read_in('route', 'node_default', 1) unless $self->{isolate};     # if there is no route input filter then specify a default one. # obviously this can be changed later by the sysop.     if (!$self->{inroutefilter}) {          my $dxcc = $self->dxcc;         $Route::filterdef->cmd($self, 'route', 'accept', "input by_dxcc $dxcc" );       }       # set unbuffered and no echo    $self->send_now('B',"0");       $self->send_now('E',"0");       $self->conn->echo(0) if $self->conn->can('echo');       # ping neighbour node stuff     my $ping = $user->pingint;      $ping = $pingint unless defined $ping;  $self->{pingint} = $ping;       $self->{nopings} = $user->nopings || $obscount; $self->{pingtime} = [ ];        $self->{pingave} = 999; $self->{metric} ||= 100;        $self->{lastping} = $main::systime;     # send initialisation string    unless ($self->{outbound}) {            $self->sendinit;        }       $self->state('init');   $self->{pc50_t} = $main::systime;       # send info to all logged in thingies   $self->tell_login('loginn');    # run a script send the output to the debug file        my $script = new Script(lc $call) || new Script('node_default');        $script->run($self) if $script;}## send outgoing 'challenge'#sub sendinit{      my $self = shift;       $self->send(pc18());}## This is the normal pcxx despatcher#sub normal{  my ($self, $line) = @_; if ($line =~ '^<\w+\s' && $main::do_xml) {              DXXml::normal($self, $line);            return; }       my @field = split /\^/, $line;  return unless @field;   pop @field if $field[-1] eq '~';#       print join(',', @field), "\n";  # process PC frames, this will fail unless the frame starts PCnn        my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number    unless (defined $pcno && $pcno >= 10 && $pcno <= 99) {          dbg("PCPROT: unknown protocol") if isdbg('chanerr');            return; }       # check for and dump bad protocol messages      my $n = check($pcno, @field);   if ($n) {               dbg("PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")") if isdbg('chanerr');         return; }       # modify the hop count here     if ($self != $main::me) {               if (my ($hops, $trail) = $line =~ /\^H(\d+)(\^?\~?)?$/) {                       $trail ||= '';                  $hops--;                        return if $hops < 0;                    $line =~ s/\^H(\d+)(\^?\~?)?$/sprintf('^H%d%s', $hops, $trail)/e;                       $field[-1] = "H$hops";          }       }       # send it out for processing    my $origin = $self->{call};     no strict 'subs';       my $sub = "handle_$pcno";       if ($self->can($sub)) {         $self->$sub($pcno, $line, $origin, @field);     } else {                $self->handle_default($pcno, $line, $origin, @field);   }}## This is called from inside the main cluster processing loop and is used# for despatching commands that are doing some long processing job#sub process{     my $t = time;   my @dxchan = DXChannel::get_all();      my $dxchan;     my $pc50s;      # send out a pc50 on EVERY channel all at once  if ($t >= $last_pc50 + $DXProt::pc50_interval) {                $pc50s = pc50($main::me, scalar DXChannel::get_all_users);              eph_dup($pc50s);                $last_pc50 = $t;        }       foreach $dxchan (@dxchan) {             next unless $dxchan->is_node;           next if $dxchan->handle_xml;            next if $dxchan == $main::me;           # send the pc50         $dxchan->send($pc50s) if $pc50s;                # send a ping out on this channel               if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {                     if ($dxchan->{nopings} <= 0) {                          $dxchan->disconnect;                    } else {                                DXXml::Ping::add($main::me, $dxchan->call);                             $dxchan->{nopings} -= 1;                                $dxchan->{lastping} = $t;                               $dxchan->{lastping} += $dxchan->{pingint} / 2 unless @{$dxchan->{pingtime}};                    }               }       }       Investigate::process(); clean_pc92_find();      # every ten seconds     if ($t - $last10 >= 10) {               # clean out ephemera            eph_clean();            import_chat();          if ($main::systime >= $last_pc92_update + $pc92_update_period) {                        dbg("ROUTE: sending pc92 update") if isdbg('route');                    send_pc92_update();                     time_out_pc92_routes();                 $last_pc92_update = $main::systime + int rand(5*60);            }               $last10 = $t;   }       if ($main::systime - 3600 > $last_hour) {               $last_hour = $main::systime;    }}## finish up a pc context### some active measures#sub send_dx_spot{   my $self = shift;       my $line = shift;       my @dxchan = DXChannel::get_all();      my $dxchan;     # send it if it isn't the except list and isn't isolated and still has a hop count      # taking into account filtering and so on       foreach $dxchan (@dxchan) {             next if $dxchan == $main::me;           next if $dxchan == $self && $self->is_node;             $dxchan->dx_spot($line, $self->{isolate}, @_, $self->{call});   }}sub dx_spot{  my $self = shift;       my $line = shift;       my $isolate = shift;    my ($filter, $hops);    if ($self->{spotsfilter}) {             ($filter, $hops) = $self->{spotsfilter}->it(@_);                return unless $filter;  }       send_prot_line($self, $filter, $hops, $isolate, $line);}sub send_prot_line{     my ($self, $filter, $hops, $isolate, $line) = @_;       my $routeit;    if ($hops) {            $routeit = $line;               $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;        } else {                $routeit = adjust_hops($self, $line);  # adjust its hop count by node name              return unless $routeit; }       if ($filter) {          $self->send($routeit);  } else {                $self->send($routeit) unless $self->{isolate} || $isolate;      }}sub send_wwv_spot{    my $self = shift;       my $line = shift;       my @dxchan = DXChannel::get_all();      my $dxchan;     my @dxcc = ((Prefix::cty_data($_[6]))[0..2], (Prefix::cty_data($_[7]))[0..2]);  # send it if it isn't the except list and isn't isolated and still has a hop count      # taking into account filtering and so on       foreach $dxchan (@dxchan) {             next if $dxchan == $main::me;           next if $dxchan == $self && $self->is_node;             my $routeit;            my ($filter, $hops);            $dxchan->wwv($line, $self->{isolate}, @_, $self->{call}, @dxcc);        }}sub wwv{      my $self = shift;       my $line = shift;       my $isolate = shift;    my ($filter, $hops);    if ($self->{wwvfilter}) {               ($filter, $hops) = $self->{wwvfilter}->it(@_[7..$#_]);          return unless $filter;  }       send_prot_line($self, $filter, $hops, $isolate, $line)}sub send_wcy_spot{       my $self = shift;       my $line = shift;       my @dxchan = DXChannel::get_all();      my $dxchan;     my @dxcc = ((Prefix::cty_data($_[10]))[0..2], (Prefix::cty_data($_[11]))[0..2]);        # send it if it isn't the except list and isn't isolated and still has a hop count      # taking into account filtering and so on       foreach $dxchan (@dxchan) {             next if $dxchan == $main::me;           next if $dxchan == $self;               $dxchan->wcy($line, $self->{isolate}, @_, $self->{call}, @dxcc);        }}sub wcy{      my $self = shift;       my $line = shift;       my $isolate = shift;    my ($filter, $hops);    if ($self->{wcyfilter}) {               ($filter, $hops) = $self->{wcyfilter}->it(@_);          return unless $filter;  }       send_prot_line($self, $filter, $hops, $isolate, $line) if $self->is_clx || $self->is_spider || $self->is_dxnet;}# send an announcesub send_announce{    my $self = shift;       my $from_pc9x = shift;  my $line = shift;       my @dxchan = DXChannel::get_all();      my $dxchan;     my $target = $_[6];     my $to = 'To '; my $text = unpad($_[2]);        if ($_[3] eq '*') {     # sysops                $target = "SYSOP";      } elsif ($_[3] gt ' ') { # speciality list handling             my ($name) = split /\./, $_[3];         $target = "$name"; # put the rest in later (if bothered)        }       if ($_[5] eq '1') {             $target = "WX";         $to = '';       }       $target = "ALL" if !$target;    # obtain country codes etc      my @a = Prefix::cty_data($_[0]);        my @b = Prefix::cty_data($_[4]);        if ($self->{inannfilter}) {             my ($filter, $hops) =                   $self->{inannfilter}->it(@_, $self->{call},                                                                      @a[0..2],                                                                       @b[0..2], $a[3], $b[3]);               unless ($filter) {                      dbg("PCPROT: Rejected by input announce filter") if isdbg('chanerr');                   return;         }       }       if (AnnTalk::dup($_[0], $_[1], $_[2])) {                dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');          return; }       Log('ann', $target, $_[0], $text);      # send it if it isn't the except list and isn't isolated and still has a hop count      # taking into account filtering and so on       foreach $dxchan (@dxchan) {             next if $dxchan == $main::me;           next if $dxchan == $self && $self->is_node;             next if $from_pc9x && $dxchan->{do_pc9x};               next if $target eq 'LOCAL' && $dxchan->is_node;         $dxchan->announce($line, $self->{isolate}, $to, $target, $text, @_, $self->{call},                                                @a[0..2], @b[0..2]);  }}my $msgid = 0;sub nextchatmsgid{      $msgid++;       $msgid = 1 if $msgid > 999;     return $msgid;}# send a chat linesub send_chat{ my $self = shift;       my $from_pc9x = shift;  my $line = shift;       my @dxchan = DXChannel::get_all();      my $dxchan;     my $target = $_[3];     my $text = unpad($_[2]);        my $ak1a_line;  # munge the group and recast the line if required       if ($target =~ s/\.LST$//) {            $ak1a_line = $line;     }       # obtain country codes etc      my @a = Prefix::cty_data($_[0]);        my @b = Prefix::cty_data($_[4]);        if ($self->{inannfilter}) {             my ($filter, $hops) =                   $self->{inannfilter}->it(@_, $self->{call},                                                                      @a[0..2],                                                                       @b[0..2], $a[3], $b[3]);               unless ($filter) {                      dbg("PCPROT: Rejected by input announce filter") if isdbg('chanerr');                   return;         }       }       if (AnnTalk::dup($_[0], $_[1], $_[2], $chatdupeage)) {          dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');          return; }       Log('chat', $target, $_[0], $text);     # send it if it isn't the except list and isn't isolated and still has a hop count      # taking into account filtering and so on       foreach $dxchan (@dxchan) {             my $is_ak1a = $dxchan->is_ak1a;         if ($dxchan->is_node) {                 next if $dxchan == $main::me;                   next if $dxchan == $self;                       next if $from_pc9x && $dxchan->{do_pc9x};                       next unless $dxchan->is_spider || $is_ak1a;                     next if $target eq 'LOCAL';                     if (!$ak1a_line && $is_ak1a) {                          $ak1a_line = pc12($_[0], $text, $_[1], "$target.LST");                  }               }               $dxchan->chat($is_ak1a ? $ak1a_line : $line, $self->{isolate}, $target, $_[1],                                    $text, @_, $self->{call}, @a[0..2], @b[0..2]);        }}sub announce{ my $self = shift;       my $line = shift;       my $isolate = shift;    my $to = shift; my $target = shift;     my $text = shift;       my ($filter, $hops);    if ($self->{annfilter}) {               ($filter, $hops) = $self->{annfilter}->it(@_);          return unless $filter;  }       send_prot_line($self, $filter, $hops, $isolate, $line) unless $_[1] eq $main::mycall;}sub chat{ goto &announce;}sub send_local_config{  my $self = shift;       dbg('DXProt::send_local_config') if isdbg('trace');     # send our nodes        if ($self->{do_pc9x}) {         $self->send_pc92_config;        } else {                my $node;               my @nodes;              my @localnodes;         my @remotenodes;                if ($self->{isolate}) {                 @localnodes = ( $main::routeroot );                     $self->send_route($main::mycall, \&pc19, 1, $main::routeroot);          } else {                        # create a list of all the nodes that are not connected to this connection                      # and are not themselves isolated, this to make sure that isolated nodes                        # don't appear outside of this node                     # send locally connected nodes                  my @dxchan = grep { $_->call ne $main::mycall && $_ != $self && !$_->{isolate} } DXChannel::get_all_nodes();                    @localnodes = map { my $r = Route::Node::get($_->{call}); $r ? $r : () } @dxchan if @dxchan;                    $self->send_route($main::mycall, \&pc19, scalar(@localnodes)+1, $main::routeroot, @localnodes);                 my $node;                       my @rawintcalls = map { $_->nodes } @localnodes if @localnodes;                 my @intcalls;                   for $node (@rawintcalls) {                              push @intcalls, $node unless grep $node eq $_, @intcalls;                       }                       my $ref = Route::Node::get($self->{call});                      my @rnodes = $ref->nodes;                       for $node (@intcalls) {                         push @remotenodes, Route::Node::get($node) unless grep $node eq $_, @rnodes, @remotenodes;                      }                       $self->send_route($main::mycall, \&pc19, scalar(@remotenodes), @remotenodes);           }               # get all the users connected on the above nodes and send them out              foreach $node ($main::routeroot, @localnodes, @remotenodes) {                   if ($node) {                            my @rout = map {my $r = Route::User::get($_); $r ? ($r) : ()} $node->users;                             $self->send_route($main::mycall, \&pc16, 1, $node, @rout) if @rout && $self->user->wantsendpc16;                        } else {                                dbg("sent a null value") if isdbg('chanerr');                   }               }       }}sub gen_my_pc92_config{       my $node = shift;       if ($node->{call} eq $main::mycall) {           my @dxchan = grep { $_->call ne $main::mycall && !$_->{isolate} } DXChannel::get_all();         dbg("ROUTE: all dxchan: " . join(',', map{$_->{call}} @dxchan)) if isdbg('routelow');           my @localnodes = map { my $r = Route::get($_->{call}); $r ? $r : () } @dxchan;          dbg("ROUTE: localnodes: " . join(',', map{$_->{call}} @localnodes)) if isdbg('routelow');               return pc92c($main::routeroot, @localnodes);    } else {                my @rout = map {my $r = Route::User::get($_); $r ? ($r) : ()} $node->users;             return pc92c($node, @rout);     }}sub gen_pc92_update{  my $self = shift;       my $with_pc92_nodes = shift;    my $node;       my @lines;      my @dxchan;     my @localnodes; dbg('ROUTE: DXProt::gen_pc92_update start') if isdbg('routelow');       # send 'my' configuration for all channels      push @lines, gen_my_pc92_config($main::routeroot);      if ($with_pc92_nodes) {         # send out the configuration of all the directly connected PC92 nodes with current configuration                # but with the dates that the last config came in with.         @dxchan = grep { $_->call ne $main::mycall && $_ != $self && !$_->{isolate} && $_->{do_pc9x} } DXChannel::get_all_nodes();              dbg("ROUTE: pc92 dxchan: " . join(',', map{$_->{call}} @dxchan)) if isdbg('routelow');          @localnodes = map { my $r = Route::Node::get($_->{call}); $r ? $r : () } @dxchan;               dbg("ROUTE: pc92 localnodes: " . join(',', map{$_->{call}} @localnodes)) if isdbg('routelow');          foreach $node (@localnodes) {                   if ($node && $node->lastid->{92}) {                             my @rout = map {my $r = Route::get($_); $r ? ($r) : ()} $node->nodes, $node->users;                             push @lines, gen_pc92_with_time($node->call, 'C', $node->lastid->{92}, @rout);                  }               }       }       # send the configuration of all the directly connected 'external' nodes that don't handle PC92  # out with the 'external' marker on the first node.     @dxchan = grep { $_->call ne $main::mycall && $_ != $self && !$_->{isolate} && !$_->{do_pc9x} } DXChannel::get_all_nodes();     dbg("ROUTE: non pc92 dxchan: " . join(',', map{$_->{call}} @dxchan)) if isdbg('routelow');      @localnodes = map { my $r = Route::Node::get($_->{call}); $r ? $r : () } @dxchan;       dbg("ROUTE: non pc92 localnodes: " . join(',', map{$_->{call}} @localnodes)) if isdbg('routelow');      foreach $node (@localnodes) {           if ($node) {                    push @lines, gen_my_pc92_config($node);         }       }       dbg('ROUTE: DXProt::gen_pc92_update end with ' . scalar @lines . ' lines') if isdbg('routelow');        return @lines;}sub send_pc92_config{    my $self = shift;       dbg('DXProt::send_pc92_config') if isdbg('trace');      my @out = $self->gen_pc92_update(1);    # send the complete config out on this interface        for (@out) {            $self->send($_);        }}sub send_pc92_update{ my @out = $main::me->gen_pc92_update(0);        # broadcast the lines to all PC92 nodes for (@out) {            $main::me->broadcast_route_pc9x($main::mycall, undef, $_, 0);   }}sub time_out_pc92_routes{     my @nodes = grep {$_->call ne $main::mycall && ($_->do_pc9x || $_->via_pc92)} Route::Node::get_all();   my @rdel;       foreach my $n (@nodes) {                my $o = $n->dec_obs;            if ($o <= 0) {                  if (my $dxchan = DXChannel::get($n->call)) {                            dbg("ROUTE: disconnecting local pc92 $dxchan->{call} on obscount") if isdbg('route');                           $dxchan->disconnect;                            next;                   }                       my @parents = map {Route::Node::get($_)} $n->parents;                   for (@parents) {                                if ($_) {                                       dbg("ROUTE: deleting pc92 $_->{call} from $n->{call} on obscount") if isdbg('route');                                   push @rdel, $n->del($_);                                }                       }               } else {                        dbg("ROUTE: obscount on $n->{call} now $o") if isdbg('route');          }       }       for (@rdel) {           $main::me->route_pc21($main::mycall, undef, $_) if $_;  }}## route a message down an appropriate interface for a callsign## is called route(to, pcline);#sub route{     my ($self, $call, $line) = @_;  if (ref $self && $call eq $self->{call}) {              dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');             return; }       # always send it down the local interface if available  my $dxchan = DXChannel::get($call);     if ($dxchan) {          dbg("route: $call -> $dxchan->{call} direct" ) if isdbg('route');       } else {                my $cl = Route::get($call);             $dxchan = $cl->dxchan if $cl;           if (ref $dxchan) {                      if (ref $self && $dxchan eq $self) {                            dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');                             return;                 }                       dbg("route: $call -> $dxchan->{call} using normal route" ) if isdbg('route');           }       }       # try the backstop method       unless ($dxchan) {              my $rcall = RouteDB::get($call);                if ($rcall) {                   if ($self && $rcall eq $self->{call}) {                         dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');                             return;                 }                       $dxchan = DXChannel::get($rcall);                       dbg("route: $call -> $rcall using RouteDB" ) if isdbg('route') && $dxchan;              }       }       if ($dxchan) {          my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name                if ($routeit) {                 $dxchan->send($routeit) unless $dxchan == $main::me;            }       } else {                dbg("PCPROT: No route available, dropped") if isdbg('chanerr'); }}## obtain the hops from the list for this callsign and pc no#sub get_hops{    my $pcno = shift;       my $hops = $DXProt::hopcount{$pcno};    $hops = $DXProt::def_hopcount if !$hops;        return "H$hops";}## adjust the hop count on a per node basis using the user loadable# hop table if available or else decrement an existing one#sub adjust_hops{ my $self = shift;       my $s = shift;  my $call = $self->{call};       my $hops;       if (($hops) = $s =~ /\^H(\d+)\^?~?$/o) {                my ($pcno) = $s =~ /^PC(\d\d)/o;                confess "$call called adjust_hops with '$s'" unless $pcno;              my $ref = $nodehops{$call} if %nodehops;                if ($ref) {                     my $newhops = $ref->{$pcno};                    return "" if defined $newhops && $newhops == 0;                 $newhops = $ref->{default} unless $newhops;                     return "" if defined $newhops && $newhops == 0;                 $newhops = $hops if !$newhops;                  $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;             }       }       return $s;}## load hop tables#sub load_hops{    my $self = shift;       return $self->msg('lh1') unless -e "$main::data/hop_table.pl";  do "$main::data/hop_table.pl";  return $@ if $@;        return ();}sub process_rcmd{    my ($self, $tonode, $fromnode, $user, $cmd) = @_;       if ($tonode eq $main::mycall) {         my $ref = DXUser->get_current($fromnode);               my $cref = Route::Node::get($fromnode);         Log('rcmd', 'in', $ref->{priv}, $fromnode, $cmd);               if ($cmd !~ /^\s*rcmd/i && $cref && $ref && $cref->call eq $ref->homenode) { # not allowed to relay RCMDS!                      if ($ref->{priv}) {             # you have to have SOME privilege, the commands have further filtering                          $self->{remotecmd} = 1; # for the benefit of any command that needs to know                             my $oldpriv = $self->{priv};                            $self->{priv} = $ref->{priv}; # assume the user's privilege level                               my @in = (DXCommandmode::run_cmd($self, $cmd));                         $self->{priv} = $oldpriv;                               $self->send_rcmd_reply($main::mycall, $fromnode, $user, @in);                           delete $self->{remotecmd};                      } else {                                $self->send_rcmd_reply($main::mycall, $fromnode, $user, "sorry...!");                   }               } else {                        $self->send_rcmd_reply($main::mycall, $fromnode, $user, "your attempt is logged, Tut tut tut...!");             }       } else {                my $ref = DXUser->get_current($tonode);         if ($ref && $ref->is_clx) {                     $self->route($tonode, pc84($fromnode, $tonode, $user, $cmd));           } else {                        $self->route($tonode, pc34($fromnode, $tonode, $cmd));          }       }}sub process_rcmd_reply{       my ($self, $tonode, $fromnode, $user, $line) = @_;      if ($tonode eq $main::mycall) {         my $s = $rcmds{$fromnode};              if ($s) {                       my $dxchan = DXChannel::get($s->{call});                        my $ref = $user eq $tonode ? $dxchan : (DXChannel::get($user) || $dxchan);                      $ref->send($line) if $ref;                      delete $rcmds{$fromnode} if !$dxchan;           } else {                        # send unsolicited ones to the sysop                    my $dxchan = DXChannel::get($main::myalias);                    $dxchan->send($line) if $dxchan;                }       } else {                my $ref = DXUser->get_current($tonode);         if ($ref && $ref->is_clx) {                     $self->route($tonode, pc85($fromnode, $tonode, $user, $line));          } else {                        $self->route($tonode, pc35($fromnode, $tonode, $line));         }       }}sub send_rcmd_reply{  my $self = shift;       my $tonode = shift;     my $fromnode = shift;   my $user = shift;       while (@_) {            my $line = shift;               $line =~ s/\s*$//;              Log('rcmd', 'out', $fromnode, $line);           if ($self->is_clx) {                    $self->send(pc85($main::mycall, $fromnode, $user, "$main::mycall:$line"));              } else {                        $self->send(pc35($main::mycall, $fromnode, "$main::mycall:$line"));             }       }}# add a rcmd request to the rcmd queuessub addrcmd{   my ($self, $to, $cmd) = @_;     my $r = {};     $r->{call} = $self->{call};     $r->{t} = $main::systime;       $r->{cmd} = $cmd;       $rcmds{$to} = $r;       my $ref = Route::Node::get($to);        my $dxchan = $ref->dxchan;      if ($dxchan && $dxchan->is_clx) {               route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));       } else {                route(undef, $to, pc34($main::mycall, $to, $cmd));      }}sub disconnect{       my $self = shift;       my $pc39flag = shift;   my $call = $self->call; return if $self->{disconnecting}++;     unless ($pc39flag && $pc39flag == 1) {          $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));    }       # get rid of any PC16/17/19     eph_del_regex("^PC1[679]*$call");       # do routing stuff, remove me from routing table        my $node = Route::Node::get($call);     my @rout;       if ($node) {            @rout = $node->del($main::routeroot);           # and all my ephemera as well           for (@rout) {                   my $c = $_->call;                       eph_del_regex("^PC1[679].*$c");         }       }       RouteDB::delete_interface($call);       # unbusy and stop and outgoing mail     my $mref = DXMsg::get_busy($call);      $mref->stop_msg($call) if $mref;        # broadcast to all other nodes that all the nodes connected to via me are gone  unless ($pc39flag && $pc39flag == 2)  {         $self->route_pc21($main::mycall, undef, @rout) if @rout;                $self->route_pc92d($main::mycall, undef, $main::routeroot, $node) if $node;     }       # remove outstanding pings      delete $pings{$call};   # I was the last node visited    $self->user->node($main::mycall);      # send info to all logged in thingies   $self->tell_login('logoutn');   Log('DXProt', $call . " Disconnected"); $self->SUPER::disconnect;}## send a talk message to this thingy#sub talk{       my ($self, $from, $to, $via, $line, $origin) = @_;      if ($self->{do_pc9x}) {         $self->send(pc93($to, $from, $via, $line));     } else {                $self->send(pc10($from, $to, $via, $line, $origin));    }       Log('talk', $to, $from, '>' . ($via || $origin || $self->call), $line) unless $origin && $origin ne $main::mycall;}# send it if it isn't the except list and isn't isolated and still has a hop count# taking into account filtering and so onsub send_route{   my $self = shift;       my $origin = shift;     my $generate = shift;   my $no = shift;     # the no of things to filter on     my $routeit;    my ($filter, $hops);    my @rin;        for (; @_ && $no; $no--) {              my $r = shift;          if (!$self->{isolate} && $self->{routefilter}) {                        $filter = undef;                        if ($r) {                               ($filter, $hops) = $self->{routefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq, $self->{state}, $r->{state});                         if ($filter) {                                  push @rin, $r;                          } else {                                        dbg("DXPROT: $self->{call}/" . $r->call . " rejected by output filter") if isdbg('chanerr');                            }                       } else {                                dbg("was sent a null value") if isdbg('chanerr');                       }               } else {                        push @rin, $r unless $self->{isolate} && $r->call ne $main::mycall;             }       }       if (@rin) {             foreach my $line (&$generate(@rin, @_)) {                       if ($hops) {                            $routeit = $line;                               $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;                        } else {                                $routeit = adjust_hops($self, $line);  # adjust its hop count by node name                              next unless $routeit;                   }                       $self->send($routeit);          }       }}sub broadcast_route{  my $self = shift;       my $origin = shift;     my $generate = shift;   my $line = shift;       my @dxchan = DXChannel::get_all_nodes();        my $dxchan;     if ($line) {            $line =~ /\^H(\d+)\^?\~?$/;             return unless $1 > 0;   }       unless ($self->{isolate}) {             foreach $dxchan (@dxchan) {                     next if $dxchan == $self;                       next if $dxchan == $main::me;                   next unless $dxchan->isa('DXProt');                     next if $dxchan->{do_pc9x};                     next if ($generate == \&pc16 || $generate==\&pc17) && !$dxchan->user->wantsendpc16;                     $dxchan->send_route($origin, $generate, @_);            }       }}# this is only used for next door nodes on initsub send_route_pc92{   my $self = shift;       return unless $self->{do_pc9x}; my $origin = shift;     my $generate = shift;   my $no = shift;     # the no of things to filter on     my $line;       $line = &$generate(@_); $self->send($line);}sub broadcast_route_pc9x{   my $self = shift;       my $origin = shift;     my $generate = shift;   my $line = shift;       my $no = shift; my @dxchan = DXChannel::get_all_nodes();        my $dxchan;     if ($origin eq $main::mycall && $generate && !$line) {          $line = &$generate(@_); }       $line =~ /\^H(\d+)\^\~?$/;      unless ($1 > 0 && $self->{isolate}) {           foreach $dxchan (@dxchan) {                     next if $dxchan == $self || $dxchan == $main::me;                       next if $origin eq $dxchan->{call};     # don't route some from this call back again.                   next unless $dxchan->{do_pc9x};                 next unless $dxchan->isa('DXProt');                     $dxchan->send($line);           }       }}sub route_pc16{       my $self = shift;       return unless $self->user->wantpc16;    my $origin = shift;     my $line = shift;       broadcast_route($self, $origin, \&pc16, $line, 1, @_);}sub route_pc17{  my $self = shift;       return unless $self->user->wantpc16;    my $origin = shift;     my $line = shift;       broadcast_route($self, $origin, \&pc17, $line, 1, @_);}sub route_pc19{  my $self = shift;       my $origin = shift;     my $line = shift;       broadcast_route($self, $origin, \&pc19, $line, scalar @_, @_);}sub route_pc21{  my $self = shift;       my $origin = shift;     my $line = shift;       broadcast_route($self, $origin, \&pc21, $line, scalar @_, @_);}sub route_pc24{  my $self = shift;       my $origin = shift;     my $line = shift;       broadcast_route($self, $origin, \&pc24, $line, 1, @_);}sub route_pc41{  my $self = shift;       my $origin = shift;     my $line = shift;       broadcast_route($self, $origin, \&pc41, $line, 1, @_);}sub route_pc50{  my $self = shift;       my $origin = shift;     my $line = shift;       broadcast_route($self, $origin, \&pc50, $line, 1, @_);}sub route_pc92c{ my $self = shift;       my $origin = shift;     my $line = shift;       broadcast_route_pc9x($self, $origin, \&pc92c, $line, 1, @_);}sub route_pc92a{   my $self = shift;       my $origin = shift;     my $line = shift;       broadcast_route_pc9x($self, $origin, \&pc92a, $line, 1, @_);}sub route_pc92d{   my $self = shift;       my $origin = shift;     my $line = shift;       broadcast_route_pc9x($self, $origin, \&pc92d, $line, 1, @_);}sub in_filter_route{       my $self = shift;       my $r = shift;  my ($filter, $hops) = (1, 1);   if ($self->{inroutefilter}) {           ($filter, $hops) = $self->{inroutefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq, $self->state, $r->state);           dbg("PCPROT: $self->{call}/" . $r->call . ' rejected by in_filter_route') if !$filter && isdbg('chanerr');      }       return $filter;}sub eph_dup{    my $s = shift;  my $t = shift || $eph_restime;  my $r;  # chop the end off      $s =~ s/\^H\d\d?\^?\~?$//;      $r = 1 if exists $eph{$s};    # pump up the dup if it keeps circulating $eph{$s} = $main::systime + $t; dbg("PCPROT: emphemeral duplicate") if $r && isdbg('chanerr');  return $r;}sub eph_del_regex{   my $regex = shift;      my ($key, $val);        while (($key, $val) = each %eph) {              if ($key =~ m{$regex}) {                        delete $eph{$key};              }       }}sub eph_clean{        my ($key, $val);        while (($key, $val) = each %eph) {              if ($main::systime >= $val) {                   delete $eph{$key};              }       }}sub eph_list{ my ($key, $val);        my @out;        while (($key, $val) = each %eph) {              push @out, $key, $val;  }       return @out;}sub run_cmd{       goto &DXCommandmode::run_cmd;}# import any msgs in the chat directory# the messages are sent to the chat group which forms the# the first part of the name (eg: solar.1243.txt would be# sent to chat group SOLAR)## Each message found is sent: one non-blank line to one chat# message. So 4 lines = 4 chat messages.## The special name LOCAL is for local users ANN# The special name ALL is for ANN/FULL# The special name SYSOP is for ANN/SYSOP#sub import_chat{ # are there any to do in this directory?        return unless -d $chatimportfn; unless (opendir(DIR, $chatimportfn)) {          dbg("can\'t open $chatimportfn $!") if isdbg('msg');            Log('msg', "can\'t open $chatimportfn $!");             return; }       my @names = readdir(DIR);       closedir(DIR);  my $name;       foreach $name (@names) {                next if $name =~ /^\./;         my $splitit = $name =~ /^split/;                my $fn = "$chatimportfn/$name";         next unless -f $fn;             unless (open(MSG, $fn)) {                       dbg("can\'t open import file $fn $!") if isdbg('msg');                  Log('msg', "can\'t open import file $fn $!");                   unlink($fn);                    next;           }               my @msg = map { s/\r?\n$//; $_ } <MSG>;         close(MSG);             unlink($fn);            my @cat = split /\./, $name;            my $target = uc $cat[0];                foreach my $text (@msg) {                       next unless $text && $text !~ /^\s*#/;                  if ($target eq 'ALL' || $target eq 'LOCAL' || $target eq 'SYSOP') {                             my $sysopflag = $target eq 'SYSOP' ? '*' : ' ';                         if ($target ne 'LOCAL') {                                       send_announce($main::me, pc12($main::mycall, $text, '*', $sysopflag), $main::mycall, '*', $text, $sysopflag, $main::mycall, '0');                               } else {                                        Log('ann', 'LOCAL', $main::mycall, $text);                                      DXChannel::broadcast_list("To LOCAL de ${main::mycall}: $text\a", 'ann', undef, DXCommandmode->get_all());                              }                       } else {                                my $msgid = nextchatmsgid();                            $text = "#$msgid $text";                                send_chat($main::me, pc12($main::mycall, $text, '*', $target), $main::mycall, '*', $text, $target, $main::mycall, '0');                 }               }       }}# start a pc92 find operationsub start_pc92_find{     my $dxchan = shift;     my $target = shift;     my $key = "$dxchan->{call}|$target";    if ($pc92_find{$key}) { }}# function (not method) to handle pc92 find returnssub handle_pc92_find_reply{        my ($dxchan, $node, $from, $target, $flag, $ms) = @_;   $dxchan->print_pc92_find_reply($node, $target, $flag, $ms) if $dxchan->can('print_pc92_find_return');}sub clean_pc92_find{}1;__END__
\ No newline at end of file
+#!/usr/bin/perl
+#
+# This module impliments the protocal mode for a dx cluster
+#
+# Copyright (c) 1998 Dirk Koopman G1TLH
+#
+#
+#
+
+package DXProt;
+
+@ISA = qw(DXChannel);
+
+use DXUtil;
+use DXChannel;
+use DXUser;
+use DXM;
+use DXProtVars;
+use DXCommandmode;
+use DXLog;
+use Spot;
+use DXProtout;
+use DXDebug;
+use Filter;
+use Local;
+use DXDb;
+use AnnTalk;
+use Geomag;
+use WCY;
+use BadWords;
+use DXHash;
+use Route;
+use Route::Node;
+use Script;
+use DXProtHandle;
+use DXCIDR;
+
+use strict;
+
+use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
+                       $last_hour $last10 %eph  %pings %rcmds $ann_to_talk
+                       $pingint $obscount %pc19list $chatdupeage $chatimportfn
+                       $pc19_version $myprot_version
+                       %nodehops $baddx $badspotter $badnode $censorpc
+                       $allowzero $decode_dk0wcy $send_opernam @checklist
+                       $eph_pc15_restime $pc92_update_period $pc92_obs_timeout
+                       %pc92_find $pc92_find_timeout $pc92_short_update_period
+                       $next_pc92_obs_timeout $pc92_slug_changes $last_pc92_slug
+                       $pc92_extnode_update_period $pc50_interval
+                       $pc92_keepalive_period
+                  );
+
+$pc11_max_age = 1*3600;                        # the maximum age for an incoming 'real-time' pc11
+$pc23_max_age = 1*3600;                        # the maximum age for an incoming 'real-time' pc23
+
+$last_hour = time;                             # last time I did an hourly periodic update
+%rcmds = ();                    # outstanding rcmd requests outbound
+%nodehops = ();                 # node specific hop control
+%pc19list = ();                                        # list of outstanding PC19s that haven't had PC16s on them
+
+$censorpc = 1;                                 # Do a BadWords::check on text fields and reject things
+                                                               # loads of 'bad things'
+$baddx = new DXHash "baddx";
+$badspotter = new DXHash "badspotter";
+$badnode = new DXHash "badnode";
+$last10 = $last_pc50 = time;
+$ann_to_talk = 1;
+$eph_restime = 60;
+$eph_info_restime = 18*60*60;
+$eph_pc15_restime = 6*60;
+$eph_pc34_restime = 30;
+$pingint = 5*60;
+$obscount = 2;
+$chatdupeage = 20 * 60;
+$chatimportfn = "$main::root/chat_import";
+$pc19_version = 5455;                  # the visible version no for outgoing PC19s generated from pc59
+$pc92_update_period = 4*60*60; # the period between outgoing PC92 C updates
+$pc92_short_update_period = 15*60; # shorten the update period after a connection or start up
+$pc92_extnode_update_period = 1*60*60; # the update period for external nodes
+$pc92_keepalive_period = 1*60*60;      # frequency of PC92 K (keepalive) records
+%pc92_find = ();                               # outstanding pc92 find operations
+$pc92_find_timeout = 30;               # maximum time to wait for a reply
+
+
+@checklist =
+(
+ [ qw(i c c m bp bc c) ],                      # pc10
+ [ qw(i f m d t m c c h) ],            # pc11
+ [ qw(i c bm m bm bm p h) ],           # pc12
+ [ qw(i c h) ],                                        #
+ [ qw(i c h) ],                                        #
+ [ qw(i c m h) ],                                      #
+ undef ,                                               # pc16 has to be validated manually
+ [ qw(i c c h) ],                                      # pc17
+ [ qw(i m n) ],                                        # pc18
+ undef ,                                               # pc19 has to be validated manually
+ undef ,                                               # pc20 no validation
+ [ qw(i c m h) ],                                      # pc21
+ undef ,                                               # pc22 no validation
+ [ qw(i d n n n n m c c h) ],          # pc23
+ [ qw(i c p h) ],                                      # pc24
+ [ qw(i c c n n) ],                            # pc25
+ [ qw(i f m d t m c c bc) ],           # pc26
+ [ qw(i d n n n n m c c bc) ], # pc27
+ [ qw(i c c m c d t p m bp n p bp bc) ], # pc28
+ [ qw(i c c n m) ],                            # pc29
+ [ qw(i c c n) ],                                      # pc30
+ [ qw(i c c n) ],                                      # pc31
+ [ qw(i c c n) ],                                      # pc32
+ [ qw(i c c n) ],                                      # pc33
+ [ qw(i c c m) ],                                      # pc34
+ [ qw(i c c m) ],                                      # pc35
+ [ qw(i c c m) ],                                      # pc36
+ [ qw(i c c n m) ],                            # pc37
+ undef,                                                        # pc38 not interested
+ [ qw(i c m) ],                                        # pc39
+ [ qw(i c c m p n) ],                          # pc40
+ [ qw(i c n m h) ],                            # pc41
+ [ qw(i c c n) ],                                      # pc42
+ undef,                                                        # pc43 don't handle it
+ [ qw(i c c n m m c) ],                        # pc44
+ [ qw(i c c n m) ],                            # pc45
+ [ qw(i c c n) ],                                      # pc46
+ undef,                                                        # pc47
+ undef,                                                        # pc48
+ [ qw(i c m h) ],                                      # pc49
+ [ qw(i c n h) ],                                      # pc50
+ [ qw(i c c n) ],                                      # pc51
+ undef,
+ undef,
+ undef,
+ undef,
+ undef,
+ undef,
+ undef,
+ undef,
+ undef,                                                        # pc60
+ [ qw(i f m d t m c c a h) ],          # pc61
+ undef,
+ undef,
+ undef,
+ undef,
+ undef,
+ undef,
+ undef,
+ undef,
+ undef,                                                        # pc70
+ undef,
+ undef,
+ [ qw(i d n n n n n n m m m c c h) ],  # pc73
+ undef,
+ undef,
+ undef,
+ undef,
+ undef,
+ undef,
+ undef,                                                        # pc80
+ undef,
+ undef,
+ undef,
+ [ qw(i c c c m) ],                            # pc84
+ [ qw(i c c c m) ],                            # pc85
+ undef,
+ undef,
+ undef,
+ undef,
+ undef,                                                        # pc90
+ undef,
+ [ qw(i c f l)],                               # pc92
+ [ qw(i c f *m c *c m)],                                       # pc93
+);
+
+# use the entry in the check list to check the field list presented
+# return OK if line NOT in check list (for now)
+sub check
+{
+       my $n = shift;
+       $n -= 10;
+       return 0 if $n < 0 || $n > @checklist;
+       my $ref = $checklist[$n];
+       return 0 unless ref $ref;
+
+       my $i;
+       for ($i = 1; $i < @$ref; $i++) {
+               my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
+               return 0 unless $act;
+               next if $blank eq 'b' && $_[$i] =~ /^[ \*]$/;
+               next if $blank eq '*' && $_[$i] =~ /^\*$/;
+               if ($act eq 'c') {
+                       return $i unless is_callsign($_[$i]);
+               } elsif ($act eq 'i') {
+                       ;                                       # do nothing
+               } elsif ($act eq 'm') {
+                       return $i unless is_pctext($_[$i]);
+               } elsif ($act eq 'p') {
+                       return $i unless is_pcflag($_[$i]);
+               } elsif ($act eq 'f') {
+                       return $i unless is_freq($_[$i]);
+               } elsif ($act eq 'n') {
+                       return $i unless $_[$i] =~ /^[\d ]+$/;
+               } elsif ($act eq 'h') {
+                       return $i unless $_[$i] =~ /^H\d\d?$/;
+               } elsif ($act eq 'd') {
+                       return $i unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
+               } elsif ($act eq 't') {
+                       return $i unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
+               } elsif ($act eq 'l') {
+                       return $i unless $_[$i] =~ /^[A-Z]$/;
+               } elsif ($act eq 'a') {
+                       return $i unless is_ipaddr($_[$i]);
+               }
+       }
+       return 0;
+}
+
+sub update_pc92_next
+{
+       my $self = shift;
+       my $period = shift || ($self->{do_pc9x} ? $pc92_update_period : $pc92_extnode_update_period);
+       $self->{next_pc92_update} = $main::systime + $period - int rand($period / 4);
+       dbg("ROUTE: update_pc92_next: $self->{call} " . atime($self->{next_pc92_update})) if isdbg('obscount');
+}
+
+sub update_pc92_keepalive
+{
+       my $self = shift;
+       my $period = shift || $pc92_keepalive_period;
+       $self->{next_pc92_keepalive} = $main::systime + $period - int rand($period / 4);
+       dbg("ROUTE: update_pc92_keepalive: $self->{call} " . atime($self->{next_pc92_keepalive})) if isdbg('obscount');
+}
+
+sub init
+{
+       do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
+       confess $@ if $@;
+
+       my $user = DXUser::get($main::mycall);
+       die "User $main::mycall not setup or disappeared RTFM" unless $user;
+
+       $myprot_version += $main::version*100;
+       $main::me = DXProt->new($main::mycall, 0, $user);
+       $main::me->{here} = 1;
+       $main::me->{state} = "indifferent";
+       $main::me->{sort} = 'S';    # S for spider
+       $main::me->{priv} = 9;
+       $main::me->{metric} = 0;
+       $main::me->{pingave} = 0;
+       $main::me->{registered} = 1;
+       $main::me->{version} = $main::version;
+       $main::me->{build} = $main::build;
+       $main::me->{do_pc9x} = 1;
+       $main::me->{hostname} = $main::clusteraddr;
+       $main::me->update_pc92_next($pc92_short_update_period);
+       $main::me->update_pc92_keepalive;
+}
+
+#
+# obtain a new connection this is derived from dxchannel
+#
+
+sub new
+{
+       my $self = DXChannel::alloc(@_);
+
+       # add this node to the table, the values get filled in later
+       my $pkg = shift;
+       my $call = shift;
+
+       # if we have an entry already, then send a PC21 to all connect
+       # old style connections, because we are about to get the real deal
+       if (my $ref = Route::Node::get($call)) {
+               dbg("ROUTE: $call is already in the routing table, deleting") if isdbg('route');
+               my @rout = $ref->delete;
+               $self->route_pc21($main::mycall, undef, @rout) if @rout;
+       }
+       $main::routeroot->add($call, '5000', Route::here(1), $self->{conn}->peerhost) if $call ne $main::mycall;
+
+       return $self;
+}
+
+# this is how a pc connection starts (for an incoming connection)
+# issue a PC38 followed by a PC18, then wait for a PC20 (remembering
+# all the crap that comes between).
+sub start
+{
+       my ($self, $line, $sort) = @_;
+       my $call = $self->{call};
+       my $user = $self->{user};
+
+       # log it
+       my $host = $self->{conn}->peerhost;
+       $host ||= "AGW Port #$self->{conn}->{agwport}" if exists $self->{conn}->{agwport};
+       $host ||= $host if is_ipaddr($host);
+       $host ||= "unknown";
+       $self->{hostname} = $host;
+
+       Log('DXProt', "$call connected from $host");
+
+       # remember type of connection
+       $self->{consort} = $line;
+       $self->{outbound} = $sort eq 'O';
+       my $priv = $user->priv;
+       $priv = $user->priv(1) unless defined $priv;
+       $self->{priv} = $priv;     # other clusters can always be 'normal' users
+       $self->{lang} = $user->lang || 'en';
+       $self->{isolate} = $user->{isolate};
+       $self->{consort} = $line;       # save the connection type
+       $self->{here} = 1;
+       $self->{width} = 80;
+
+       # sort out registration
+       $self->{registered} = 1;
+
+       # get the output filters
+       $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
+       $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
+       $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
+       $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
+       $self->{routefilter} = Filter::read_in('route', $call, 0) || Filter::read_in('route', 'node_default', 0) unless $self->{isolate};
+       $self->{pc92filter} = Filter::read_in('pc92', $call, 0) || Filter::read_in('pc92', 'node_default', 0) unless $self->{isolate} ;
+
+
+       # get the INPUT filters (these only pertain to Clusters)
+       $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
+       $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
+       $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
+       $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);
+       $self->{inroutefilter} = Filter::read_in('route', $call, 1) || Filter::read_in('route', 'node_default', 1) unless $self->{isolate};
+       $self->{inpc92filter} = Filter::read_in('pc92', $call, 0) || Filter::read_in('pc92', 'node_default', 0) unless $self->{isolate} ;
+
+
+       # set unbuffered and no echo
+       $self->send_now('B',"0");
+       $self->send_now('E',"0");
+       $self->conn->echo(0) if $self->conn->can('echo');
+
+       # ping neighbour node stuff
+       my $ping = $user->pingint;
+       $ping = $pingint unless defined $ping;
+       $self->{pingint} = $ping;
+       $self->{nopings} = $user->nopings || $obscount;
+       $self->{pingtime} = [ ];
+       $self->{pingave} = 999;
+       $self->{metric} ||= 100;
+       $self->{lastping} = $main::systime;
+
+       # send initialisation string
+       unless ($self->{outbound}) {
+               $self->sendinit;
+       }
+
+       $self->state('init');
+       $self->{pc50_t} = $main::systime;
+
+       # send info to all logged in thingies
+       $self->tell_login('loginn');
+
+       # run a script send the output to the debug file
+       my $script = new Script(lc $call) || new Script('node_default');
+       $script->run($self) if $script;
+
+       # set up a config broadcast "quite soon" to converge tables quicker
+       $main::me->update_pc92_next($pc92_short_update_period);
+       $self->update_pc92_next($pc92_short_update_period);
+
+       # set next keepalive time
+       $self->update_pc92_keepalive;
+}
+
+#
+# send outgoing 'challenge'
+#
+
+sub sendinit
+{
+       my $self = shift;
+       $self->send(pc18(($self->{isolate} || !$self->user->wantpc9x) ? "" : " pc9x"));
+}
+
+#
+# This is the normal pcxx despatcher
+#
+sub normal
+{
+       my ($self, $line) = @_;
+
+       if ($line =~ '^<\w+\s' && $main::do_xml) {
+               DXXml::normal($self, $line);
+               return;
+       }
+
+       my @field = split /\^/, $line;
+       return unless @field;
+
+       pop @field if $field[-1] eq '~';
+
+#      print join(',', @field), "\n";
+
+
+       # process PC frames, this will fail unless the frame starts PCnn
+       my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
+       unless (defined $pcno && $pcno >= 10 && $pcno <= 99) {
+               dbg("PCPROT: unknown protocol") if isdbg('chanerr');
+               return;
+       }
+
+       # check for and dump bad protocol messages
+       my $n = check($pcno, @field);
+       if ($n) {
+               dbg("PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")") if isdbg('chanerr');
+               return;
+       }
+
+       # modify the hop count here
+       if ($self != $main::me) {
+               if (my ($hops, $trail) = $line =~ /\^H(\d+)(\^?\~?)?$/) {
+                       $trail ||= '';
+                       $hops--;
+                       return if $hops < 0;
+                       $line =~ s/\^H(\d+)(\^?\~?)?$/sprintf('^H%d%s', $hops, $trail)/e;
+                       $field[-1] = "H$hops";
+               }
+       }
+
+       if (defined &Local::pcprot) {
+               my $r;
+               eval { $r = Local::pcprot($self, $pcno, $line, @field); };
+               return if $r;                   # i.e don't process it
+       }
+
+       # send it out for processing
+       my $origin = $self->{call};
+       no strict 'subs';
+       my $sub = "handle_$pcno";
+
+       if ($self->can($sub)) {
+               $self->$sub($pcno, $line, $origin, \@field);
+       } else {
+               $self->handle_default($pcno, $line, $origin, \@field);
+       }
+}
+
+#
+# This is called from inside the main cluster processing loop and is used
+# for despatching commands that are doing some long processing job
+#
+sub process
+{
+       my $t = time;
+       my @dxchan = DXChannel::get_all();
+       my $dxchan;
+       my $pc50s;
+
+       # every ten seconds
+       if ($t - $last10 >= 10) {
+               # clean out ephemera
+
+               eph_clean();
+               import_chat();
+
+               $last10 = $t;
+
+               # send out a pc50 on EVERY channel all at once
+               if ($t >= $last_pc50 + $pc50_interval) {
+                       $pc50s = pc50($main::me, scalar DXChannel::get_all_users);
+                       eph_dup($pc50s);
+                       $last_pc50 = $t;
+               }
+
+               foreach $dxchan (@dxchan) {
+                       next unless $dxchan->is_node;
+                       next if $dxchan == $main::me;
+
+                       # send the pc50
+                       $dxchan->send($pc50s) if !$dxchan->{do_pc9x} && $pc50s;
+
+                       # send a ping out on this channel
+                       if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
+                               if ($dxchan->{nopings} <= 0) {
+                                       dbg("ROUTE: $dxchan->{call} disconnected on ping obscount") if isdbg('obscount');
+                                       $dxchan->disconnect;
+                               } else {
+                                       DXXml::Ping::add($main::me, $dxchan->call);
+                                       $dxchan->{nopings} -= 1;
+                                       $dxchan->{lastping} = $t;
+                                       $dxchan->{lastping} += $dxchan->{pingint} / 2 unless @{$dxchan->{pingtime}};
+                                       dbg("ROUTE: $dxchan->{call} ping obscount = $dxchan->{nopings}") if isdbg('obscount');
+                               }
+                       }
+               }
+
+               clean_pc92_find();
+
+               # send out config broadcasts
+               foreach $dxchan (@dxchan) {
+                       next unless $dxchan->is_node;
+
+                       # send out a PC92 config record if required for me and
+                       # all my non pc9x dependent nodes. But for dependent nodes we only do
+                       # this if we have not seen any from anyone else for at least half
+                       # of one update period. This should stop quite a bit of excess C
+                       # records. Someone will win, it does not really matter who, because
+                       # we always believe "us".
+                       if ($main::systime >= $dxchan->{next_pc92_update}) {
+                               if ($dxchan == $main::me || !$dxchan->{do_pc9x}) {
+                                       dbg("ROUTE: pc92 broadcast candidate: $dxchan->{call}") if isdbg('obscount');
+                                       my $ref = Route::Node::get($dxchan->{call});
+                                       if ($dxchan == $main::me || ($ref && ($ref->measure_pc9x_t($main::systime-$main::systime_daystart)) >= $pc92_extnode_update_period/2)) {
+                                               $dxchan->broadcast_pc92_update($dxchan->{call});
+                                       } else {
+                                               $dxchan->update_pc92_next;
+                                       }
+                               } else {
+                                       $dxchan->update_pc92_next; # this won't actually do anything, it's just to be tidy
+                               }
+                       }
+               }
+
+               # do the keepalive for me, if required
+               if ($main::systime >= $main::me->{next_pc92_keepalive}) {
+                       time_out_pc92_routes();
+                       $main::me->broadcast_pc92_keepalive($main::mycall);
+               }
+
+               if ($pc92_slug_changes && $main::systime >= $last_pc92_slug + $pc92_slug_changes) {
+                       my ($add, $del) = gen_pc92_changes();
+                       $main::me->route_pc92d($main::mycall, undef, $main::routeroot, @$del) if @$del;
+                       $main::me->route_pc92a($main::mycall, undef, $main::routeroot, @$add) if @$add;
+                       clear_pc92_changes();
+               }
+       }
+
+       if ($main::systime - 3600 > $last_hour) {
+               $last_hour = $main::systime;
+       }
+}
+
+#
+# finish up a pc context
+#
+
+#
+# some active measures
+#
+
+
+sub send_dx_spot
+{
+       my $self = shift;
+       my $line = shift;
+       my @dxchan = DXChannel::get_all();
+       my $dxchan;
+       my $pc11;
+
+       # send it if it isn't the except list and isn't isolated and still has a hop count
+       # taking into account filtering and so on
+       foreach $dxchan (@dxchan) {
+               next if $dxchan == $main::me;
+               next if $dxchan == $self && $self->is_node;
+               if ($line =~ /PC61/ && !($dxchan->is_spider || $dxchan->is_user)) {
+                       unless ($pc11) {
+                               my @f = split /\^/, $line;
+                               $pc11 = join '^', 'PC11', @f[1..7,9];
+                       }
+                       $dxchan->dx_spot($pc11, $self->{isolate}, @_, $self->{call});
+               } else {
+                       $dxchan->dx_spot($line, $self->{isolate}, @_, $self->{call});
+               }
+       }
+}
+
+sub dx_spot
+{
+       my $self = shift;
+       my $line = shift;
+       my $isolate = shift;
+       my ($filter, $hops);
+
+       if ($self->{spotsfilter}) {
+               ($filter, $hops) = $self->{spotsfilter}->it(@_);
+               return unless $filter;
+       }
+       send_prot_line($self, $filter, $hops, $isolate, $line);
+}
+
+sub send_prot_line
+{
+       my ($self, $filter, $hops, $isolate, $line) = @_;
+       my $routeit;
+
+
+       if ($hops) {
+               $routeit = $line;
+               $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
+       } else {
+               $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
+               return unless $routeit;
+       }
+       if ($filter) {
+               $self->send($routeit);
+       } else {
+               $self->send($routeit) unless $self->{isolate} || $isolate;
+       }
+}
+
+
+sub send_wwv_spot
+{
+       my $self = shift;
+       my $line = shift;
+       my @dxchan = DXChannel::get_all();
+       my $dxchan;
+       my @dxcc = ((Prefix::cty_data($_[6]))[0..2], (Prefix::cty_data($_[7]))[0..2]);
+
+       # send it if it isn't the except list and isn't isolated and still has a hop count
+       # taking into account filtering and so on
+       foreach $dxchan (@dxchan) {
+               next if $dxchan == $main::me;
+               next if $dxchan == $self && $self->is_node;
+               my $routeit;
+               my ($filter, $hops);
+
+               $dxchan->wwv($line, $self->{isolate}, @_, $self->{call}, @dxcc);
+       }
+}
+
+sub wwv
+{
+       my $self = shift;
+       my $line = shift;
+       my $isolate = shift;
+       my ($filter, $hops);
+
+       if ($self->{wwvfilter}) {
+               ($filter, $hops) = $self->{wwvfilter}->it(@_[7..$#_]);
+               return unless $filter;
+       }
+       send_prot_line($self, $filter, $hops, $isolate, $line)
+}
+
+sub send_wcy_spot
+{
+       my $self = shift;
+       my $line = shift;
+       my @dxchan = DXChannel::get_all();
+       my $dxchan;
+       my @dxcc = ((Prefix::cty_data($_[10]))[0..2], (Prefix::cty_data($_[11]))[0..2]);
+
+       # send it if it isn't the except list and isn't isolated and still has a hop count
+       # taking into account filtering and so on
+       foreach $dxchan (@dxchan) {
+               next if $dxchan == $main::me;
+               next if $dxchan == $self;
+
+               $dxchan->wcy($line, $self->{isolate}, @_, $self->{call}, @dxcc);
+       }
+}
+
+sub wcy
+{
+       my $self = shift;
+       my $line = shift;
+       my $isolate = shift;
+       my ($filter, $hops);
+
+       if ($self->{wcyfilter}) {
+               ($filter, $hops) = $self->{wcyfilter}->it(@_);
+               return unless $filter;
+       }
+       send_prot_line($self, $filter, $hops, $isolate, $line) if $self->is_clx || $self->is_spider || $self->is_dxnet;
+}
+
+# send an announce
+sub send_announce
+{
+       my $self = shift;
+       my $from_pc9x = shift;
+       my $line = shift;
+       my @dxchan = DXChannel::get_all();
+       my $dxchan;
+       my $target = $_[6];
+       my $to = 'To ';
+       my $text = unpad($_[2]);
+       my $from = $_[0];
+
+       if ($_[3] eq '*') {     # sysops
+               $target = "SYSOP";
+       } elsif ($_[3] gt ' ') { # speciality list handling
+               my ($name) = split /\./, $_[3];
+               $target = "$name"; # put the rest in later (if bothered)
+       }
+
+       if ($_[5] eq '1') {
+               $target = "WX";
+               $to = '';
+       }
+       $target = "ALL" if !$target;
+
+
+       # obtain country codes etc
+       my @a = Prefix::cty_data($from);
+       my @b = Prefix::cty_data($_[4]);
+       if ($self->{inannfilter}) {
+               my ($filter, $hops) =
+                       $self->{inannfilter}->it(@_, $self->{call},
+                                                                        @a[0..2],
+                                                                        @b[0..2], $a[3], $b[3]);
+               unless ($filter) {
+                       dbg("PCPROT: Rejected by input announce filter") if isdbg('chanerr');
+                       return;
+               }
+       }
+
+       # the sysop ('*') thing is an attempt to minimise the damage caused by non-updated PC93 generators
+       if (AnnTalk::dup($from, $target, $_[2]) || ($_[3] eq '*' && AnnTalk::dup($from, 'ALL', $_[2]))) {
+               my $dxchan = DXChannel::get($from);
+               if ($self == $main::me && $dxchan && $dxchan->is_user) {
+                       if ($dxchan->priv < 5) {
+                               $dxchan->send($dxchan->msg('dup'));
+                               return;
+                       }
+               } else {
+                       dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');
+                       return;
+               }
+       }
+
+       Log('ann', $target, $from, $text);
+
+       # send it if it isn't the except list and isn't isolated and still has a hop count
+       # taking into account filtering and so on
+       foreach $dxchan (@dxchan) {
+               next if $dxchan == $main::me;
+               next if $dxchan == $self && $self->is_node;
+               next if $from_pc9x && $dxchan->{do_pc9x};
+               next if $target eq 'LOCAL' && $dxchan->is_node;
+               $dxchan->announce($line, $self->{isolate}, $to, $target, $text, @_, $self->{call},
+                                                 @a[0..2], @b[0..2]);
+       }
+}
+
+my $msgid = int rand(1000);
+
+sub nextchatmsgid
+{
+       $msgid++;
+       $msgid = 1 if $msgid > 999;
+       return $msgid;
+}
+
+# send a chat line
+sub send_chat
+{
+       my $self = shift;
+       my $from_pc9x = shift;
+       my $line = shift;
+       my @dxchan = DXChannel::get_all();
+       my $dxchan;
+       my $target = $_[3];
+       my $text = unpad($_[2]);
+       my $ak1a_line;
+       my $from = $_[0];
+
+       # munge the group and recast the line if required
+       if ($target =~ s/\.LST$//) {
+               $ak1a_line = $line;
+       }
+
+       # obtain country codes etc
+       my @a = Prefix::cty_data($from);
+       my @b = Prefix::cty_data($_[4]);
+       if ($self->{inannfilter}) {
+               my ($filter, $hops) =
+                       $self->{inannfilter}->it(@_, $self->{call},
+                                                                        @a[0..2],
+                                                                        @b[0..2], $a[3], $b[3]);
+               unless ($filter) {
+                       dbg("PCPROT: Rejected by input announce filter") if isdbg('chanerr');
+                       return;
+               }
+       }
+
+       if (AnnTalk::dup($from, $target, $_[2], $main::systime + $chatdupeage)) {
+               my $dxchan = DXChannel::get($from);
+               if ($self == $main::me && $dxchan && $dxchan->is_user) {
+                       if ($dxchan->priv < 5) {
+                               $dxchan->send($dxchan->msg('dup'));
+                               return;
+                       }
+               } else {
+                       dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');
+                       return;
+               }
+       }
+
+
+       Log('chat', $target, $from, $text);
+
+       # send it if it isn't the except list and isn't isolated and still has a hop count
+       # taking into account filtering and so on
+       foreach $dxchan (@dxchan) {
+               if ($dxchan->is_node) {
+                       next if $dxchan == $main::me;
+                       next if $dxchan == $self;
+                       next if $from_pc9x && $dxchan->do_pc9x;
+                       next unless $dxchan->is_spider && $dxchan->do_pc9x;
+                       next if $target eq 'LOCAL';
+               }
+
+               $dxchan->chat($line, $self->{isolate}, $target, $_[1],
+                                         $text, @_, $self->{call}, @a[0..2], @b[0..2]);
+       }
+}
+
+sub announce
+{
+       my $self = shift;
+       my $line = shift;
+       my $isolate = shift;
+       my $to = shift;
+       my $target = shift;
+       my $text = shift;
+       my ($filter, $hops);
+
+       if ($self->{annfilter}) {
+               ($filter, $hops) = $self->{annfilter}->it(@_);
+               return unless $filter;
+       }
+       send_prot_line($self, $filter, $hops, $isolate, $line) unless $_[1] eq $main::mycall;
+}
+
+sub chat
+{
+       my $self = shift;
+       my $line = shift;
+       my $isolate = shift;
+       my $to = shift;
+       my $target = shift;
+       my $text = shift;
+       my ($filter, $hops);
+
+       if ($self->{annfilter}) {
+               ($filter, $hops) = $self->{annfilter}->it(@_);
+               return unless $filter;
+       }
+       if (($self->is_spider || $self->is_ak1a) && $_[1] ne $main::mycall) {
+               send_prot_line($self, $filter, $hops, $isolate, $line);
+       }
+}
+
+
+sub send_local_config
+{
+       my $self = shift;
+
+       dbg('DXProt::send_local_config') if isdbg('trace');
+
+       # send our nodes
+       my $node;
+       my @nodes;
+       my @localnodes;
+       my @remotenodes;
+
+       if ($self->{isolate}) {
+               dbg("send_local_config: isolated");
+               @localnodes = ( $main::routeroot );
+               $self->send_route($main::mycall, \&pc19, 1, $main::routeroot);
+       } elsif ($self->{do_pc9x}) {
+               dbg("send_local_config: doing pc9x");
+               my $node = Route::Node::get($self->{call});
+#              $self->send_last_pc92_config($main::routeroot);
+#              $self->send(pc92a($main::routeroot, $node)) unless $main::routeroot->last_PC92C =~ /$self->{call}/;
+               $self->send(pc92a($main::routeroot, $node));
+               $self->send(pc92k($main::routeroot));
+       } else {
+               # create a list of all the nodes that are not connected to this connection
+               # and are not themselves isolated, this to make sure that isolated nodes
+               # don't appear outside of this node
+
+               dbg("send_local_config: traditional");
+
+               # send locally connected nodes
+               my @dxchan = grep { $_->call ne $main::mycall && $_ != $self && !$_->{isolate} } DXChannel::get_all_nodes();
+               @localnodes = map { my $r = Route::Node::get($_->{call}); $r ? $r : () } @dxchan if @dxchan;
+               $self->send_route($main::mycall, \&pc19, scalar(@localnodes)+1, $main::routeroot, @localnodes);
+
+               my $node;
+               my @rawintcalls = map { $_->nodes } @localnodes if @localnodes;
+               my @intcalls;
+               foreach $node (@rawintcalls) {
+                       push @intcalls, $node if grep $_ && $node != $_, @intcalls;
+               }
+               my $ref = Route::Node::get($self->{call});
+               my @rnodes = $ref->nodes;
+               foreach $node (@intcalls) {
+                       push @remotenodes, Route::Node::get($node) if grep $_ && $node != $_, @rnodes, @remotenodes;
+               }
+               $self->send_route($main::mycall, \&pc19, scalar(@remotenodes), @remotenodes);
+       }
+
+       # get all the users connected on the above nodes and send them out
+       unless ($self->{do_pc9x}) {
+               foreach $node ($main::routeroot, @localnodes, @remotenodes) {
+                       if ($node) {
+                               my @rout = map {my $r = Route::User::get($_); $r ? ($r) : ()} $node->users;
+                               $self->send_route($main::mycall, \&pc16, 1, $node, @rout) if @rout && $self->user->wantsendpc16;
+                       } else {
+                               dbg("sent a null value") if isdbg('chanerr');
+                       }
+               }
+       }
+}
+
+sub gen_my_pc92_config
+{
+       my $node = shift;
+
+       if ($node->{call} eq $main::mycall) {
+               clear_pc92_changes();           # remove any slugged data, we are generating it as now
+               my @dxchan = grep { $_->call ne $main::mycall && !$_->{isolate} } DXChannel::get_all();
+               dbg("ROUTE: all dxchan: " . join(',', map{$_->{call}} @dxchan)) if isdbg('routelow');
+               my @localnodes = map { my $r = Route::get($_->{call}); $r ? $r : () } @dxchan;
+               dbg("ROUTE: localnodes: " . join(',', map{$_->{call}} @localnodes)) if isdbg('routelow');
+               return pc92c($node, @localnodes);
+       } else {
+               my @rout = map {my $r = Route::User::get($_); $r ? ($r) : ()} $node->users;
+               return pc92c($node, @rout);
+       }
+}
+
+sub send_last_pc92_config
+{
+       my $self = shift;
+       my $node = shift;
+       if (my $l = $node->last_PC92C) {
+               $self->send($l);
+       } else {
+               $self->send_pc92_config($node);
+       }
+}
+
+sub send_pc92_config
+{
+       my $self = shift;
+       my $node = shift;
+
+       dbg('DXProt::send_pc92_config') if isdbg('trace');
+
+       $node->last_PC92C(gen_my_pc92_config($node));
+       $self->send($node->last_PC92C);
+}
+
+sub broadcast_pc92_update
+{
+       my $self = shift;
+       my $call = shift;
+
+       dbg("ROUTE: broadcast_pc92_update $call") if isdbg('obscount');
+
+       my $nref = Route::Node::get($call);
+       unless ($nref) {
+               cluck("ERROR: broadcast_pc92_update - Route::Node $call disappeared");
+               $self->update_pc92_next;
+               return;
+       }
+       my $l = $nref->last_PC92C(gen_my_pc92_config($nref));
+       $nref->lastid(last_pc9x_id());
+       $main::me->broadcast_route_pc9x($main::mycall, undef, $l, 0);
+       $self->update_pc92_next;
+}
+
+sub broadcast_pc92_keepalive
+{
+       my $self = shift;
+       my $call = shift;
+
+       dbg("ROUTE: broadcast_pc92_keepalive $call") if isdbg('obscount');
+
+       my $nref = Route::Node::get($call);
+       unless ($nref) {
+               cluck("ERROR: broadcast_pc92_keepalive - Route::Node $call disappeared");
+               $self->update_pc92_keepalive;
+               return;
+       }
+       my $l = pc92k($nref);
+       $nref->lastid(last_pc9x_id());
+       $main::me->broadcast_route_pc9x($main::mycall, undef, $l, 0);
+       $self->update_pc92_keepalive;
+}
+
+sub time_out_pc92_routes
+{
+       my @nodes = grep {$_->call ne $main::mycall && ($_->do_pc9x || $_->via_pc92)} Route::Node::get_all();
+       my @rdel;
+       foreach my $n (@nodes) {
+               my $o = $n->dec_obs;
+               if ($o <= 0) {
+                       if (my $dxchan = DXChannel::get($n->call)) {
+                               dbg("ROUTE: disconnecting local pc92 $dxchan->{call} on obscount") if isdbg('obscount');
+                               $dxchan->disconnect;
+                               next;
+                       }
+                       my @parents = map {Route::Node::get($_)} $n->parents;
+                       for (@parents) {
+                               if ($_) {
+                                       dbg("ROUTE: deleting pc92 $_->{call} from $n->{call} on obscount")  if isdbg('obscount');
+                                       push @rdel, $n->del($_);
+                               }
+                       }
+               } else {
+                       dbg("ROUTE: obscount on $n->{call} now $o") if isdbg('obscount');
+               }
+       }
+       for (@rdel) {
+               $main::me->route_pc21($main::mycall, undef, $_) if $_;
+       }
+}
+
+#
+# route a message down an appropriate interface for a callsign
+#
+# is called route(to, pcline);
+#
+
+sub route
+{
+       my ($self, $call, $line) = @_;
+
+       if (ref $self && $call eq $self->{call}) {
+               dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
+               return;
+       }
+
+       # always send it down the local interface if available
+       my $dxchan = DXChannel::get($call);
+       if ($dxchan) {
+               dbg("route: $call -> $dxchan->{call} direct" ) if isdbg('route');
+       } else {
+               my $cl = Route::get($call);
+               $dxchan = $cl->dxchan if $cl;
+               if (ref $dxchan) {
+                       if (ref $self && $dxchan eq $self) {
+                               dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
+                               return;
+                       }
+                       dbg("route: $call -> $dxchan->{call} using normal route" ) if isdbg('route');
+               }
+       }
+
+       if ($dxchan) {
+               my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
+               if ($routeit) {
+                       $dxchan->send($routeit) unless $dxchan == $main::me;
+               }
+       } else {
+               dbg("PCPROT: No route available, dropped") if isdbg('chanerr');
+       }
+}
+
+#
+# obtain the hops from the list for this callsign and pc no
+#
+
+sub get_hops
+{
+       my $pcno = shift;
+       my $hops = $DXProt::hopcount{$pcno};
+       $hops = $DXProt::def_hopcount if !$hops;
+       return "H$hops";
+}
+
+#
+# adjust the hop count on a per node basis using the user loadable
+# hop table if available or else decrement an existing one
+#
+
+sub adjust_hops
+{
+       my $self = shift;
+       my $s = shift;
+       my $call = $self->{call};
+       my $hops;
+
+       if (($hops) = $s =~ /\^H([-\d]+)\^?~?$/o) {
+               my ($pcno) = $s =~ /^PC(\d\d)/o;
+               confess "$call called adjust_hops with '$s'" unless $pcno;
+               my $ref = $nodehops{$call} if %nodehops;
+               if ($ref) {
+                       my $newhops = $ref->{$pcno};
+                       return "" if defined $newhops && $newhops == 0;
+                       $newhops = $ref->{default} unless $newhops;
+                       return "" if defined $newhops && $newhops == 0;
+                       $newhops = $hops unless $newhops;
+                       return "" unless $newhops > 0;
+                       $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops != $hops;
+               } else {
+                       return "" unless $hops > 0;
+               }
+       }
+       return $s;
+}
+
+#
+# load hop tables
+#
+sub load_hops
+{
+       my $self = shift;
+       return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
+       do "$main::data/hop_table.pl";
+       return $@ if $@;
+       return ();
+}
+
+sub process_rcmd
+{
+       my ($self, $tonode, $fromnode, $user, $cmd) = @_;
+       if ($tonode eq $main::mycall) {
+               my $ref = DXUser::get_current($fromnode);
+               unless ($ref && UNIVERSAL::isa($ref, 'DXUser')) {
+                       dbg("DXProt process_rcmd: user $fromnode isn't a reference (check user_asc and tell G1TLH)"); 
+                       $self->send_rcmd_reply($main::mycall, $fromnode, $user, "sorry...!");
+                       return;
+               }
+               my $cref = Route::Node::get($fromnode);
+               unless ($cref && UNIVERSAL::isa($cref, 'Route')) {
+                       dbg("DXProt process_rcmd: Route $fromnode isn't a reference (tell G1TLH)"); 
+                       $self->send_rcmd_reply($main::mycall, $fromnode, $user, "sorry...!");
+                       return;
+               }
+               Log('rcmd', 'in', ($ref->{priv}||0), $fromnode, $cmd);
+               if ($cmd !~ /^\s*rcmd/i && $ref->homenode && $cref->call eq $ref->homenode) { # not allowed to relay RCMDS!
+                       if ($ref->{priv}) {             # you have to have SOME privilege, the commands have further filtering
+                               $self->{remotecmd} = 1; # for the benefit of any command that needs to know
+                               my $oldpriv = $self->{priv};
+                               $self->{priv} = $ref->{priv}; # assume the user's privilege level
+                               my @in = (DXCommandmode::run_cmd($self, $cmd));
+                               $self->{priv} = $oldpriv;
+                               $self->send_rcmd_reply($main::mycall, $fromnode, $user, @in);
+                               delete $self->{remotecmd};
+                       } else {
+                               $self->send_rcmd_reply($main::mycall, $fromnode, $user, "sorry...!");
+                       }
+               } else {
+                       $self->send_rcmd_reply($main::mycall, $fromnode, $user, "your attempt is logged, Tut tut tut...!");
+               }
+       } else {
+               my $ref = DXUser::get_current($tonode);
+               if ($ref && $ref->is_clx) {
+                       $self->route($tonode, pc84($fromnode, $tonode, $user, $cmd));
+               } else {
+                       $self->route($tonode, pc34($fromnode, $tonode, $cmd));
+               }
+       }
+}
+
+sub process_rcmd_reply
+{
+       my ($self, $tonode, $fromnode, $user, $line) = @_;
+       if ($tonode eq $main::mycall) {
+               my $s = $rcmds{$fromnode};
+               if ($s) {
+                       my $dxchan = DXChannel::get($s->{call});
+                       my $ref = $user eq $tonode ? $dxchan : (DXChannel::get($user) || $dxchan);
+                       $ref->send($line) if $ref;
+                       delete $rcmds{$fromnode} if !$dxchan;
+               } else {
+                       # send unsolicited ones to the sysop
+                       my $dxchan = DXChannel::get($main::myalias);
+                       $dxchan->send($line) if $dxchan;
+               }
+       } else {
+               my $ref = DXUser::get_current($tonode);
+               if ($ref && $ref->is_clx) {
+                       $self->route($tonode, pc85($fromnode, $tonode, $user, $line));
+               } else {
+                       $self->route($tonode, pc35($fromnode, $tonode, $line));
+               }
+       }
+}
+
+sub send_rcmd_reply
+{
+       my $self = shift;
+       my $tonode = shift;
+       my $fromnode = shift;
+       my $user = shift;
+       while (@_) {
+               my $line = shift;
+               $line =~ s/\s*$//;
+               Log('rcmd', 'out', $fromnode, $line);
+               if ($self->is_clx) {
+                       $self->send(pc85($main::mycall, $fromnode, $user, "$main::mycall:$line"));
+               } else {
+                       $self->send(pc35($main::mycall, $fromnode, "$main::mycall:$line"));
+               }
+       }
+}
+
+# add a rcmd request to the rcmd queues
+sub addrcmd
+{
+       my ($self, $to, $cmd) = @_;
+
+       my $r = {};
+       $r->{call} = $self->{call};
+       $r->{t} = $main::systime;
+       $r->{cmd} = $cmd;
+       $rcmds{$to} = $r;
+
+       my $ref = Route::Node::get($to);
+       my $dxchan = $ref->dxchan;
+       if ($dxchan && $dxchan->is_clx) {
+               route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
+       } else {
+               route(undef, $to, pc34($main::mycall, $to, $cmd));
+       }
+}
+
+sub disconnect
+{
+       my $self = shift;
+       my $pc39flag = shift || 0;
+       my $call = $self->call;
+
+       return if $self->{disconnecting}++;
+
+       unless ($pc39flag == 1) {
+               $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
+       }
+
+       # get rid of any PC16/17/19
+       eph_del_regex("^PC1[679]*$call");
+
+       # do routing stuff, remove me from routing table
+       my $node = Route::Node::get($call);
+
+       Route::delete_interface($call);
+
+       # unbusy and stop and outgoing mail
+       my $mref = DXMsg::get_busy($call);
+       $mref->stop_msg($call) if $mref;
+
+       # remove outstanding pings
+       delete $pings{$call};
+
+       # I was the last node visited
+    $self->user->node($main::mycall);
+
+       # send info to all logged in thingies
+       $self->tell_login('logoutn');
+
+       Log('DXProt', $call . " Disconnected");
+
+       $self->SUPER::disconnect;
+
+       # here we determine what needs to go out of the routing table
+       my @rout;
+       if ($node && $pc39flag != 2) {
+               dbg('%Route::Node::List = ' . join(',', sort keys %Route::Node::list)) if isdbg('routedisc');
+
+               @rout = $node->del($main::routeroot);
+
+               dbg('@rout = ' . join(',', sort map {$_->call} @rout)) if isdbg('routedisc');
+
+               # now we need to see what can't be routed anymore and came
+               # in via this node (probably).
+               my $n = 0;
+               while ($n != @rout) {
+                       $n = @rout;
+                       for (Route::Node::get_all()) {
+                               unless ($_->dxchan) {
+                                       push @rout, $_->delete;
+                               }
+                       }
+                       dbg('@rout = ' . join(',', sort map {$_->call} @rout)) if isdbg('routedisc');
+               }
+
+               dbg('%Route::Node::List = ' . join(',', sort keys %Route::Node::list)) if isdbg('routedisc');
+
+               # and all my ephemera as well
+               for (@rout) {
+                       my $c = $_->call;
+                       eph_del_regex("^PC1[679].*$c");
+               }
+       }
+
+       # broadcast to all other nodes that all the nodes connected to via me are gone
+       unless ($pc39flag == 2)  {
+               $self->route_pc21($main::mycall, undef, @rout) if @rout;
+               $self->route_pc92d($main::mycall, undef, $main::routeroot, $node) if $node;
+       }
+}
+
+
+#
+# send a talk message to this thingy
+#
+sub talk
+{
+       my ($self, $from, $to, $via, $line, $origin) = @_;
+
+       if ($self->{do_pc9x}) {
+               $self->send(pc93($to, $from, $via, $line));
+       } else {
+               $self->send(pc10($from, $to, $via, $line, $origin));
+       }
+       Log('talk', $to, $from, '>' . ($via || $origin || $self->call), $line) unless $origin && $origin ne $main::mycall;
+}
+
+# send it if it isn't the except list and isn't isolated and still has a hop count
+# taking into account filtering and so on
+
+sub send_route
+{
+       my $self = shift;
+       my $origin = shift;
+       my $generate = shift;
+       my $no = shift;     # the no of things to filter on
+       my $routeit;
+       my ($filter, $hops);
+       my @rin;
+
+       for (; @_ && $no; $no--) {
+               my $r = shift;
+
+               # don't send messages with $self's call in back to them
+               if ($r->call eq $self->{call}) {
+                       dbg("PCPROT: trying to send $self->{call} back itself") if isdbg('chanerr');
+                       next;
+               }
+
+               if (!$self->{isolate} && $self->{routefilter}) {
+                       $filter = undef;
+                       if ($r) {
+                               ($filter, $hops) = $self->{routefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq, $self->{state}, $r->{state});
+                               if ($filter) {
+                                       push @rin, $r;
+                               } else {
+                                       dbg("PCPROT: $self->{call}/" . $r->call . " rejected by output filter") if isdbg('filter');
+                               }
+                       } else {
+                               dbg("was sent a null value") if isdbg('chanerr');
+                       }
+               } else {
+                       push @rin, $r unless $self->{isolate} && $r->call ne $main::mycall;
+               }
+       }
+       if (@rin) {
+               foreach my $line (&$generate(@rin, @_)) {
+                       if ($hops) {
+                               $routeit = $line;
+                               $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
+                       } else {
+                               $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
+                               next unless $routeit;
+                       }
+
+                       $self->send($routeit);
+               }
+       }
+}
+
+# broadcast everywhere
+sub broadcast_route
+{
+       my $self = shift;
+       my $origin = shift;
+       my $generate = shift;
+       my $line = shift;
+       my @dxchan = DXChannel::get_all_nodes();
+       my $dxchan;
+
+       if ($line) {
+               $line =~ /\^H(\d+)\^?\~?$/;
+               return unless $1 > 0;
+       }
+       unless ($self->{isolate}) {
+               foreach $dxchan (@dxchan) {
+                       next if $dxchan == $self || $dxchan == $main::me;
+                       next if $origin eq $dxchan->{call};     # don't route some from this call back again.
+                       next unless $dxchan->isa('DXProt');
+
+                       $dxchan->send_route($origin, $generate, @_);
+               }
+       }
+}
+
+# broadcast to non-pc9x nodes
+sub broadcast_route_nopc9x
+{
+       my $self = shift;
+       my $origin = shift;
+       my $generate = shift;
+       my $line = shift;
+       my @dxchan = DXChannel::get_all_nodes();
+       my $dxchan;
+
+       if ($line) {
+               $line =~ /\^H(\d+)\^?\~?$/;
+               return unless $1 > 0;
+       }
+       unless ($self->{isolate}) {
+               foreach $dxchan (@dxchan) {
+                       next if $dxchan == $self || $dxchan == $main::me;
+                       next if $origin eq $dxchan->{call};     # don't route some from this call back again.
+                       next unless $dxchan->isa('DXProt');
+                       next if $dxchan->{do_pc9x};
+                       if ($generate == \&pc16 || $generate==\&pc17) {
+                               next unless $dxchan->user->wantsendpc16;
+                       }
+                       $dxchan->send_route($origin, $generate, @_);
+               }
+       }
+}
+
+# this is only used for next door nodes on init
+sub send_route_pc92
+{
+       my $self = shift;
+
+       return unless $self->{do_pc9x};
+
+       my $origin = shift;
+       my $generate = shift;
+       my $no = shift;     # the no of things to filter on
+       my $line;
+
+       $line = &$generate(@_);
+       $self->send($line);
+}
+
+# broadcast only to pc9x nodes
+sub broadcast_route_pc9x
+{
+       my $self = shift;
+       my $origin = shift;
+       my $generate = shift;
+       my $line = shift;
+       my $no = shift;
+       my @dxchan = DXChannel::get_all_nodes();
+       my $dxchan;
+
+       if ($origin eq $main::mycall && $generate && !$line) {
+               $line = &$generate(@_);
+       }
+
+       $line =~ /\^H(\d+)\^\~?$/;
+       unless ($1 > 0 && $self->{isolate}) {
+               foreach $dxchan (@dxchan) {
+                       next if $dxchan == $self || $dxchan == $main::me;
+                       next if $origin eq $dxchan->{call};     # don't route some from this call back again.
+                       next unless $dxchan->isa('DXProt');
+                       next unless $dxchan->{do_pc9x};
+
+                       $dxchan->send($line);
+               }
+       }
+}
+
+sub route_pc16
+{
+       my $self = shift;
+       return unless $self->user->wantpc16;
+       my $origin = shift;
+       my $line = shift;
+       broadcast_route_nopc9x($self, $origin, \&pc16, $line, 1, @_);
+}
+
+sub route_pc17
+{
+       my $self = shift;
+       return unless $self->user->wantpc16;
+       my $origin = shift;
+       my $line = shift;
+       broadcast_route_nopc9x($self, $origin, \&pc17, $line, 1, @_);
+}
+
+sub route_pc19
+{
+       my $self = shift;
+       my $origin = shift;
+       my $line = shift;
+       broadcast_route_nopc9x($self, $origin, \&pc19, $line, scalar @_, @_);
+}
+
+sub route_pc21
+{
+       my $self = shift;
+       my $origin = shift;
+       my $line = shift;
+       broadcast_route_nopc9x($self, $origin, \&pc21, $line, scalar @_, @_);
+}
+
+sub route_pc24
+{
+       my $self = shift;
+       my $origin = shift;
+       my $line = shift;
+       broadcast_route($self, $origin, \&pc24, $line, 1, @_);
+}
+
+sub route_pc41
+{
+       my $self = shift;
+       my $origin = shift;
+       my $line = shift;
+       broadcast_route($self, $origin, \&pc41, $line, 1, @_);
+}
+
+# this is probably obsolete now
+sub route_pc50
+{
+       my $self = shift;
+       my $origin = shift;
+       my $line = shift;
+
+       broadcast_route($self, $origin, \&pc50, $line, 1, @_);
+}
+
+sub route_pc92c
+{
+       my $self = shift;
+       my $origin = shift;
+       my $line = shift;
+       broadcast_route_pc9x($self, $origin, \&pc92c, $line, 1, @_);
+}
+
+sub route_pc92a
+{
+       my $self = shift;
+       my $origin = shift;
+       my $line = shift;
+       broadcast_route_pc9x($self, $origin, \&pc92a, $line, 1, @_);
+}
+
+sub route_pc92d
+{
+       my $self = shift;
+       my $origin = shift;
+       my $line = shift;
+       broadcast_route_pc9x($self, $origin, \&pc92d, $line, 1, @_);
+}
+
+sub in_filter_route
+{
+       my $self = shift;
+       my $r = shift;
+       my ($filter, $hops) = (1, 1);
+
+       if ($self->{inroutefilter}) {
+               ($filter, $hops) = $self->{inroutefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq, $self->state, $r->state);
+               dbg("PCPROT: $self->{call}/" . $r->call . ' rejected by in_filter_route') if !$filter && isdbg('chanerr');
+       }
+       return $filter;
+}
+
+sub eph_dup
+{
+       my $s = shift;
+       my $t = shift || $eph_restime;
+       my $r;
+
+       # chop the end off
+       $s =~ s/\^H\d\d?\^?\~?$//;
+       $r = 1 if exists $eph{$s};    # pump up the dup if it keeps circulating
+       $eph{$s} = $main::systime + $t;
+       dbg("PCPROT: emphemeral duplicate") if $r && isdbg('chanerr');
+       return $r;
+}
+
+sub eph_del_regex
+{
+       my $regex = shift;
+       my ($key, $val);
+       while (($key, $val) = each %eph) {
+               if ($key =~ m{$regex}) {
+                       delete $eph{$key};
+               }
+       }
+}
+
+sub eph_clean
+{
+       my ($key, $val);
+
+       while (($key, $val) = each %eph) {
+               if ($main::systime >= $val) {
+                       delete $eph{$key};
+               }
+       }
+}
+
+sub eph_list
+{
+       my ($key, $val);
+       my @out;
+
+       while (($key, $val) = each %eph) {
+               push @out, $key, $val;
+       }
+       return @out;
+}
+
+sub run_cmd
+{
+       goto &DXCommandmode::run_cmd;
+}
+
+
+# import any msgs in the chat directory
+# the messages are sent to the chat group which forms the
+# the first part of the name (eg: solar.1243.txt would be
+# sent to chat group SOLAR)
+#
+# Each message found is sent: one non-blank line to one chat
+# message. So 4 lines = 4 chat messages.
+#
+# The special name LOCAL is for local users ANN
+# The special name ALL is for ANN/FULL
+# The special name SYSOP is for ANN/SYSOP
+#
+sub import_chat
+{
+       # are there any to do in this directory?
+       return unless -d $chatimportfn;
+       unless (opendir(DIR, $chatimportfn)) {
+               dbg("can\'t open $chatimportfn $!") if isdbg('msg');
+               Log('msg', "can\'t open $chatimportfn $!");
+               return;
+       }
+
+       my @names = readdir(DIR);
+       closedir(DIR);
+       my $name;
+       foreach $name (@names) {
+               next if $name =~ /^\./;
+               my $splitit = $name =~ /^split/;
+               my $fn = "$chatimportfn/$name";
+               next unless -f $fn;
+               unless (open(MSG, $fn)) {
+                       dbg("can\'t open import file $fn $!") if isdbg('msg');
+                       Log('msg', "can\'t open import file $fn $!");
+                       unlink($fn);
+                       next;
+               }
+               my @msg = map { s/\r?\n$//; $_ } <MSG>;
+               close(MSG);
+               unlink($fn);
+
+               my @cat = split /\./, $name;
+               my $target = uc $cat[0];
+
+               foreach my $text (@msg) {
+                       next unless $text && $text !~ /^\s*#/;
+                       if ($target eq 'ALL' || $target eq 'LOCAL' || $target eq 'SYSOP' || $target eq 'WX') {
+                               my $sysop = uc $target eq 'SYSOP' ? '*' : ' ';
+                               my $wx = uc $target eq 'WX' ? '1' : '0';
+                               my $via = $target;
+                               $via = '*' if $target eq 'ALL' || $target eq 'SYSOP';
+                               Log('ann', $target, $main::mycall, $text);
+                               $main::me->normal(DXProt::pc93($target, $main::mycall, $via, $text));
+                       } else {
+                               DXCommandmode::send_chats($main::me, $target, $text);
+                       }
+               }
+       }
+}
+
+# start a pc92 find operation
+sub start_pc92_find
+{
+       my $dxchan = shift;
+       my $target = shift;
+       my $key = "$dxchan->{call}|$target";
+       if ($pc92_find{$key}) {
+
+       }
+}
+
+# function (not method) to handle pc92 find returns
+sub handle_pc92_find_reply
+{
+       my ($dxchan, $node, $from, $target, $flag, $ms) = @_;
+
+       $dxchan->print_pc92_find_reply($node, $target, $flag, $ms) if $dxchan->can('print_pc92_find_return');
+}
+
+sub clean_pc92_find
+{
+
+}
+1;
+__END__