X-Git-Url: http://gb7djk.dxcluster.net/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2FDXProt.pm;h=dded0e6451073153fea76fd1e77b8834e8cced9b;hb=9b250c2488bfab7fa9fdc6c90d2dd5d285f5aa34;hp=1f224766ebe4968f97e9545d40bc428d2f078b74;hpb=07ea293f3919d2da76220b5fbc55b734008ed44c;p=spider.git

diff --git a/perl/DXProt.pm b/perl/DXProt.pm
index 1f224766..6ff479c1 100644
--- a/perl/DXProt.pm
+++ b/perl/DXProt.pm
@@ -15,20 +15,314 @@ use DXUtil;
 use DXChannel;
 use DXUser;
 use DXM;
-use DXCluster;
+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 Investigate;
+use RouteDB;
+use DXProtHandle;
+
+use strict;
+
+use vars qw($VERSION $BRANCH);
+$VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
+$BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/  || (0,0));
+$main::build += $VERSION;
+$main::branch += $BRANCH;
+
+use vars qw($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 $send_opernam @checklist
+		   );
+
+$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_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
+
+@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;
+}
+
+#
+# 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;
+	$main::routeroot->add($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 = shift;
-  my $call = $self->call;
-  
-  # do we have him connected on the cluster somewhere else?
-  $self->pc38();
-  $self->pc18();
-  $self->{state} = 'incoming';
+	my ($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};
+	
+	# 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());
 }
 
 #
@@ -36,7 +330,54 @@ sub start
 #
 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 (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);
+	}
 }
 
 #
@@ -45,31 +386,988 @@ sub normal
 #
 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();
+
+	# every ten seconds
+	if ($t - $last10 >= 10) {	
+		# clean out ephemera 
+
+		eph_clean();
+		import_chat();
+		
 
+		$last10 = $t;
+	}
+	
+	if ($main::systime - 3600 > $last_hour) {
+		$last_hour = $main::systime;
+	}
 }
 
 #
 # finish up a pc context
 #
-sub finish
+
+#
+# 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 announce
+sub send_announce
+{
+	my $self = shift;
+	my $line = shift;
+	my @dxchan = DXChannel::get_all();
+	my $dxchan;
+	my $target;
+	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;
+		$dxchan->announce($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 line
+sub send_chat
+{
+	my $self = 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 unless $dxchan->is_spider || $is_ak1a;
+			next if $target eq 'LOCAL';
+			if (!$ak1a_line && $is_ak1a) {
+				$ak1a_line = DXProt::pc12($_[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_pc92}) { 
+		$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 send_pc92_config
+{
+	my $self = shift;
+	my $node;
+
+	dbg('DXProt::send_pc92_config') if isdbg('trace');
+	
+	my @dxchan = grep { $_->call ne $main::mycall && $_ != $self && !$_->{isolate} } DXChannel::get_all();
+	my @localnodes = map { my $r = Route::get($_->{call}); $r ? $r : () } @dxchan if @dxchan;
+	$self->send_route_pc92($main::mycall, \&pc92c, scalar @localnodes, @localnodes);
+}
+
 #
-# All the various PC routines
+# route a message down an appropriate interface for a callsign
+#
+# is called route(to, pcline);
 #
 
-sub pc18
+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');
+	}
 }
 
-sub pc38
+#
+# 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:$line"));
+		}
+	}
+}
+
+# add a rcmd request to the rcmd queues
+sub addrcmd
+{
+	my ($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;
+	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, $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) = @_;
+	
+	$line =~ s/\^/\\5E/g;			# remove any ^ characters
+	$self->send(DXProt::pc10($from, $to, $via, $line, $origin));
+	Log('talk', $to, $from, $via?$via:$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 $r = shift;
+		
+		if (!$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 $dxchan->{do_pc92};
+			next if ($generate == \&pc16 || $generate==\&pc17) && !$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_pc92};
+	
+	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) {
+		$line = &$generate(@_);
+	} 
+
+	$line =~ /\^H(\d+)\^$/;
+	unless ($1 > 0 && $self->{isolate}) {
+		foreach $dxchan (@dxchan) {
+			next if $dxchan == $self;
+			next if $dxchan == $main::me;
+			next unless $dxchan->{do_pc92};
+			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');
+			}
+		}
+	}
+}
 
 1;
 __END__