X-Git-Url: http://gb7djk.dxcluster.net/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2FDXProt.pm;h=e7bda8bc5f5fe9ce82c1b9660813da17d3fea980;hb=4a653ce0cd9140d4a7878cdf8ee835841ca039eb;hp=1f2a642809e31b97637b3ea5b24e22fe74dcfd86;hpb=c5e90df0d93d141f8687556a708068521b9b8f77;p=spider.git

diff --git a/perl/DXProt.pm b/perl/DXProt.pm
index 1f2a6428..e7bda8bc 100644
--- a/perl/DXProt.pm
+++ b/perl/DXProt.pm
@@ -70,7 +70,7 @@ $baddxfn = "$main::data/baddx.pl";
  [ qw(c c n n) ],				# pc25
  [ qw(f m d t m c c bc) ],		# pc26
  [ qw(d n n n n m c c bc) ],	# pc27
- [ qw(c c c c d t p m bp n p bp bc) ], # pc28
+ [ qw(c c m c d t p m bp n p bp bc) ], # pc28
  [ qw(c c n m) ],				# pc29
  [ qw(c c n) ],					# pc30
  [ qw(c c n) ],					# pc31
@@ -211,11 +211,18 @@ sub start
 	$self->{consort} = $line;	# save the connection type
 	$self->{here} = 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) ;
+
+
 	# get the INPUT filters (these only pertain to Clusters)
-	$self->{inspotfilter} = Filter::read_in('spots', $call, 1);
-	$self->{inwwvfilter} = Filter::read_in('wwv', $call, 1);
-	$self->{inwcyfilter} = Filter::read_in('wcy', $call, 1);
-	$self->{inannfilter} = Filter::read_in('ann', $call, 1);
+	$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);
 	
 	# set unbuffered and no echo
 	$self->send_now('B',"0");
@@ -272,7 +279,7 @@ sub normal
 	# check for and dump bad protocol messages
 	my $n = check($pcno, @field);
 	if ($n) {
-		dbg('chan', "bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")");
+		dbg('chan', "PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")");
 		return;
 	}
 
@@ -291,7 +298,7 @@ sub normal
 			if ($censorpc) {
 				my @bad;
 				if (@bad = BadWords::check($field[3])) {
-					dbg('chan', "Bad words: @bad, dropped" );
+					dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 					return;
 				}
 			}
@@ -326,7 +333,7 @@ sub normal
 			
 			# if this is a 'nodx' node then ignore it
 			if (grep $field[7] =~ /^$_/,  @DXProt::nodx_node) {
-				dbg('chan', "Bad DXNode, dropped");
+				dbg('chan', "PCPROT: Bad DXNode, dropped");
 				return;
 			}
 			
@@ -334,26 +341,26 @@ sub normal
 			my $d = cltounix($field[3], $field[4]);
 			# bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 			if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
-				dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
+				dbg('chan', "PCPROT: Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 				return;
 			}
 
 			# is it 'baddx'
 			if (grep $field[2] eq $_, @baddx) {
-				dbg('chan', "Bad DX spot, ignored");
+				dbg('chan', "PCPROT: Bad DX spot, ignored");
 				return;
 			}
 			
 			# do some de-duping
 			$field[5] =~ s/^\s+//;      # take any leading blanks off
 			if (Spot::dup($field[1], $field[2], $d, $field[5])) {
-				dbg('chan', "Duplicate Spot ignored\n");
+				dbg('chan', "PCPROT: Duplicate Spot ignored\n");
 				return;
 			}
 			if ($censorpc) {
 				my @bad;
 				if (@bad = BadWords::check($field[5])) {
-					dbg('chan', "Bad words: @bad, dropped" );
+					dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 					return;
 				}
 			}
@@ -430,14 +437,14 @@ sub normal
 			# announce duplicate checking
 			$field[3] =~ s/^\s+//;  # remove leading blanks
 			if (AnnTalk::dup($field[1], $field[2], $field[3])) {
-				dbg('chan', "Duplicate Announce ignored");
+				dbg('chan', "PCPROT: Duplicate Announce ignored");
 				return;
 			}
 
 			if ($censorpc) {
 				my @bad;
 				if (@bad = BadWords::check($field[3])) {
-					dbg('chan', "Bad words: @bad, dropped" );
+					dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 					return;
 				}
 			}
@@ -446,9 +453,23 @@ sub normal
 				
 				# global ann filtering on INPUT
 				if ($self->{inannfilter}) {
-					my ($filter, $hops) = Filter::it($self->{inannfilter}, @field[1..6], $self->{call} );
+					my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
+					my @dxcc = Prefix::extract($field[1]);
+					if (@dxcc > 0) {
+						$ann_dxcc = $dxcc[1]->dxcc;
+						$ann_itu = $dxcc[1]->itu;
+						$ann_cq = $dxcc[1]->cq();						
+					}
+					@dxcc = Prefix::extract($field[5]);
+					if (@dxcc > 0) {
+						$org_dxcc = $dxcc[1]->dxcc;
+						$org_itu = $dxcc[1]->itu;
+						$org_cq = $dxcc[1]->cq();						
+					}
+					my ($filter, $hops) = $self->{inannfilter}->it(@field[1..6], $self->{call}, 
+													$ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
 					unless ($filter) {
-						dbg('chan', "Rejected by filter");
+						dbg('chan', "PCPROT: Rejected by filter");
 						return;
 					}
 				}
@@ -479,27 +500,49 @@ sub normal
 				# add it to the node table if it isn't present and it's
 				# connected locally
 				$node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
-				broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
+				dbg('chan', "PCPROT: $field[1] no PC19 yet, autovivified as node");
+#				broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 				
 			}
-			return unless $node; # ignore if havn't seen a PC19 for this one yet
-			return unless $node->isa('DXNode');
+			if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
+				dbg('chan', "PCPROT: trying to alter config on this node from outside!");
+				return;
+			}
+			if ($field[2] eq $main::myalias && DXChannel->get($field[1])) {
+				dbg('chan', "PCPROT: trying to connect sysop from outside!");
+				return;
+			}
+			unless ($node) {
+				dbg('chan', "PCPROT: Node $field[1] not in config");
+				return;
+			}
+			unless ($node->isa('DXNode')) {
+				dbg('chan', "PCPROT: $field[1] is not a node");
+				return;
+			}
 			if ($node->dxchan != $self) {
-				dbg('chan', "LOOP: $field[1] came in on wrong channel");
+				dbg('chan', "PCPROT: $field[1] came in on wrong channel");
 				return;
 			}
 			if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
-				dbg('chan', "LOOP: $field[1] connected locally");
+				dbg('chan', "PCPROT: $field[1] connected locally");
 				return;
 			}
 			my $i;
 						
 			for ($i = 2; $i < $#field; $i++) {
 				my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
-				next if !$call || length $call < 3 || length $call > 8;
-				next if !$confmode;
-				$call = uc $call;
-				next if DXCluster->get_exact($call); # we already have this (loop?)
+				next unless $call && $confmode && defined $here && is_callsign($call);
+				my $ref = DXCluster->get_exact($call); 
+				if ($ref) {
+					if ($ref->isa('DXNode')) {
+						dbg('chan', "PCPROT: $call is a node");
+						next;
+					}
+					my $rcall = $ref->mynode->call;
+					dbg('chan', "PCPROT: already have $call on $rcall");
+					next;
+				}
 				
 				$confmode = $confmode eq '*';
 				DXNodeuser->new($self, $node, $call, $confmode, $here);
@@ -526,21 +569,40 @@ sub normal
 				# add it to the node table if it isn't present and it's
 				# connected locally
 				$node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
-				broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
+				dbg('chan', "PCPROT: $field[2] no PC19 yet, autovivified as node");
+#				broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
+			}
+			if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
+				dbg('chan', "PCPROT: trying to alter config on this node from outside!");
+				return;
+			}
+			if ($field[1] eq $main::myalias && DXChannel->get($field[1])) {
+				dbg('chan', "PCPROT: trying to disconnect sysop from outside!");
+				return;
+			}
+			unless ($node) {
+				dbg('chan', "PCPROT: Node $field[2] not in config");
+				return;
+			}
+			unless ($node->isa('DXNode')) {
+				dbg('chan', "PCPROT: $field[2] is not a node");
 				return;
 			}
-			return unless $node;
-			return unless $node->isa('DXNode');
 			if ($node->dxchan != $self) {
-				dbg('chan', "LOOP: $field[2] came in on wrong channel");
+				dbg('chan', "PCPROT: $field[2] came in on wrong channel");
 				return;
 			}
 			if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
-				dbg('chan', "LOOP: $field[2] connected locally");
+				dbg('chan', "PCPROT: $field[2] connected locally");
 				return;
 			}
 			my $ref = DXCluster->get_exact($field[1]);
-			$ref->del() if $ref;
+			if ($ref) {
+				$ref->del;
+			} else {
+				dbg('chan', "PCPROT: $field[1] not known" );
+				return;
+			}
 			last SWITCH;
 		}
 		
@@ -567,6 +629,7 @@ sub normal
 				my $call = uc $field[$i+1];
 				my $confmode = $field[$i+2];
 				my $ver = $field[$i+3];
+				next unless defined $here && defined $confmode && is_callsign($call);
 
 				$ver = 5400 if !$ver && $allowzero;
 				
@@ -575,13 +638,14 @@ sub normal
 				if ($node) {
 					my $dxchan;
 					if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
-						dbg('chan', "LOOP: $call connected locally");
+						dbg('chan', "PCPROT: $call connected locally");
 					}
 				    if ($node->dxchan != $self) {
-						dbg('chan', "LOOP: $call come in on wrong channel");
+						dbg('chan', "PCPROT: $call come in on wrong channel");
 						next;
 					}
-					dbg('chan', "already have $call");
+					my $rcall = $node->mynode->call;
+					dbg('chan', "PCPROT: already have $call on $rcall");
 					next;
 				}
 				
@@ -631,24 +695,31 @@ sub normal
 			if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 				my $node = DXCluster->get_exact($call);
 				if ($node) {
+					unless ($node->isa('DXNode')) {
+						dbg('chan', "PCPROT: $call is not a node");
+						return;
+					}
 					if ($call eq $self->{call}) {
-						dbg('chan', "LOOP: Trying to disconnect myself with PC21");
+						dbg('chan', "PCPROT: Trying to disconnect myself with PC21");
 						return;
 					} 
 					if ($node->dxchan != $self) {
-						dbg('chan', "LOOP: $call come in on wrong channel");
+						dbg('chan', "PCPROT: $call come in on wrong channel");
 						return;
 					}
 					my $dxchan;
 					if ($dxchan = DXChannel->get($call)) {
-						dbg('chan', "LOOP: $call connected locally");
+						dbg('chan', "PCPROT: $call connected locally");
 						return;
 					}
 					$node->del();
 				} else {
-					dbg('chan', "$call not in table, dropped");
+					dbg('chan', "PCPROT: $call not in table, dropped");
 					return;
 				}
+			} else {
+				dbg('chan', "PCPROT: I WILL _NOT_ be disconnected!");
+				return;
 			}
 			last SWITCH;
 		}
@@ -676,11 +747,11 @@ sub normal
 			my ($r) = $field[6] =~ /R=(\d+)/;
 			$r = 0 unless $r;
 			if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
-				dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
+				dbg('chan', "PCPROT: WWV Date ($field[1] $field[2]) out of range");
 				return;
 			}
 			if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
-				dbg('chan', "Dup WWV Spot ignored\n");
+				dbg('chan', "PCPROT: Dup WWV Spot ignored\n");
 				return;
 			}
 			$field[7] =~ s/-\d+$//o;            # remove spotter's ssid
@@ -715,7 +786,7 @@ sub normal
 				return;
 			}
 			if ($field[2] eq $main::mycall) {
-				dbg('chan', "Trying to merge to myself, ignored");
+				dbg('chan', "PCPROT: Trying to merge to myself, ignored");
 				return;
 			}
 
@@ -777,7 +848,7 @@ sub normal
 			} else {
 				my $ref = DXUser->get_current($field[1]);
 				if ($ref && $ref->is_clx) {
-					route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
+					$self->route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 				} else {
 					$self->route($field[1], $line);
 				}
@@ -800,7 +871,7 @@ sub normal
 			} else {
 				my $ref = DXUser->get_current($field[1]);
 				if ($ref && $ref->is_clx) {
-					route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
+					$self->route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 				} else {
 					$self->route($field[1], $line);
 				}
@@ -815,18 +886,17 @@ sub normal
 		}
 		
 		if ($pcno == 39) {		# incoming disconnect
-			$self->disconnect(1);
+			if ($field[1] eq $self->{call}) {
+				$self->disconnect(1);
+			} else {
+				dbg('chan', "PCPROT: came in on wrong channel");
+			}
 			return;
 		}
 		
 		if ($pcno == 41) {		# user info
 			# add this station to the user database, if required
 			my $user = DXUser->get_current($field[1]);
-			if (!$user) {
-				# then try without an SSID
-				$field[1] =~ s/-\d+$//o;
-				$user = DXUser->get_current($field[1]);
-			}
 			$user = DXUser->new($field[1]) if !$user;
 			
 			if ($field[2] == 1) {
@@ -918,12 +988,12 @@ sub normal
 			# do some de-duping
 			my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 			if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
-				dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
+				dbg('chan', "PCPROT: WCY Date ($field[1] $field[2]) out of range");
 				return;
 			}
 			@field = map { unpad($_) } @field;
 			if (WCY::dup($d,@field[3..7])) {
-				dbg('chan', "Dup WCY Spot ignored\n");
+				dbg('chan', "PCPROT: Dup WCY Spot ignored\n");
 				return;
 			}
 		
@@ -970,7 +1040,7 @@ sub normal
 				if ($ref && $ref->is_clx) {
 					$self->route($field[1], $line);
 				} else {
-					route($field[1], pc34($field[2], $field[1], $field[4]));
+					$self->route($field[1], pc34($field[2], $field[1], $field[4]));
 				}
 			}
 			return;
@@ -998,7 +1068,7 @@ sub normal
 				if ($ref && $ref->is_clx) {
 					$self->route($field[1], $line);
 				} else {
-					route($field[1], pc35($field[2], $field[1], $field[4]));
+					$self->route($field[1], pc35($field[2], $field[1], $field[4]));
 				}
 			}
 			return;
@@ -1117,8 +1187,8 @@ sub send_dx_spot
 		my $routeit;
 		my ($filter, $hops);
 
-		if ($dxchan->{spotfilter}) {
-		    ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
+		if ($dxchan->{spotsfilter}) {
+		    ($filter, $hops) = $dxchan->{spotsfilter}->it(@_, $self->{call} );
 			next unless $filter;
 		}
 		
@@ -1155,6 +1225,19 @@ sub send_wwv_spot
 	my $line = shift;
 	my @dxchan = DXChannel->get_all();
 	my $dxchan;
+	my ($wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
+	my @dxcc = Prefix::extract($_[7]);
+	if (@dxcc > 0) {
+		$wwv_dxcc = $dxcc[1]->dxcc;
+		$wwv_itu = $dxcc[1]->itu;
+		$wwv_cq = $dxcc[1]->cq;						
+	}
+	@dxcc = Prefix::extract($_[8]);
+	if (@dxcc > 0) {
+		$org_dxcc = $dxcc[1]->dxcc;
+		$org_itu = $dxcc[1]->itu;
+		$org_cq = $dxcc[1]->cq;						
+	}
 	
 	# 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
@@ -1163,7 +1246,7 @@ sub send_wwv_spot
 		my ($filter, $hops);
 
 		if ($dxchan->{wwvfilter}) {
-			 ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} );
+			($filter, $hops) = $dxchan->{wwvfilter}->it(@_, $self->{call}, $wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq);
 			 next unless $filter;
 		}
 		if ($dxchan->is_node) {
@@ -1199,6 +1282,19 @@ sub send_wcy_spot
 	my $line = shift;
 	my @dxchan = DXChannel->get_all();
 	my $dxchan;
+	my ($wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
+	my @dxcc = Prefix::extract($_[11]);
+	if (@dxcc > 0) {
+		$wcy_dxcc = $dxcc[1]->dxcc;
+		$wcy_itu = $dxcc[1]->itu;
+		$wcy_cq = $dxcc[1]->cq;						
+	}
+	@dxcc = Prefix::extract($_[12]);
+	if (@dxcc > 0) {
+		$org_dxcc = $dxcc[1]->dxcc;
+		$org_itu = $dxcc[1]->itu;
+		$org_cq = $dxcc[1]->cq;						
+	}
 	
 	# 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
@@ -1207,10 +1303,10 @@ sub send_wcy_spot
 		my ($filter, $hops);
 
 		if ($dxchan->{wcyfilter}) {
-			 ($filter, $hops) = Filter::it($dxchan->{wcyfilter}, @_, $self->{call} );
+			($filter, $hops) = $dxchan->{wcyfilter}->it(@_, $self->{call}, $wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq);
 			 next unless $filter;
 		}
-		if ($dxchan->is_clx || $dxchan->is_spider) {
+		if ($dxchan->is_clx || $dxchan->is_spider || $dxchan->is_dxnet) {
 			next if $dxchan == $self;
 			if ($hops) {
 				$routeit = $line;
@@ -1258,10 +1354,25 @@ sub send_announce
 		$target = "WX"; 
 		$to = '';
 	}
-	$target = "All" if !$target;
+	$target = "ALL" if !$target;
 	
 	Log('ann', $target, $_[0], $text);
 
+	# obtain country codes etc 
+	my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
+	my @dxcc = Prefix::extract($_[0]);
+	if (@dxcc > 0) {
+		$ann_dxcc = $dxcc[1]->dxcc;
+		$ann_itu = $dxcc[1]->itu;
+		$ann_cq = $dxcc[1]->cq;						
+	}
+	@dxcc = Prefix::extract($_[4]);
+	if (@dxcc > 0) {
+		$org_dxcc = $dxcc[1]->dxcc;
+		$org_itu = $dxcc[1]->itu;
+		$org_cq = $dxcc[1]->cq;						
+	}
+
 	# 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 $dxchan (@dxchan) {
@@ -1269,7 +1380,7 @@ sub send_announce
 		my ($filter, $hops);
 
 		if ($dxchan->{annfilter}) {
-			($filter, $hops) = Filter::it($dxchan->{annfilter}, @_, $self->{call} );
+			($filter, $hops) = $dxchan->{annfilter}->it(@_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
 			next unless $filter;
 		} 
 		if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
@@ -1355,7 +1466,7 @@ sub route
 	my ($self, $call, $line) = @_;
 
 	if (ref $self && $call eq $self->{call}) {
-		dbg('chan', "Trying to route back to source, dropped");
+		dbg('chan', "PCPROT: Trying to route back to source, dropped");
 		return;
 	}
 
@@ -1364,12 +1475,20 @@ sub route
 	unless ($dxchan) {
 		my $cl = DXCluster->get_exact($call);
 		$dxchan = $cl->dxchan if $cl;
+		if (ref $dxchan) {
+			if (ref $self && $dxchan eq $self) {
+				dbg('chan', "PCPROT: Trying to route back to source, dropped");
+				return;
+			}
+		}
 	}
 	if ($dxchan) {
 		my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
 		if ($routeit) {
 			$dxchan->send($routeit);
 		}
+	} else {
+		dbg('chan', "PCPROT: No route available, dropped");
 	}
 }
 
@@ -1439,7 +1558,7 @@ sub broadcast_list
 		
 		if ($sort eq 'dx') {
 		    next unless $dxchan->{dx};
-			($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
+			($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
 			next unless $filter;
 		}
 		next if $sort eq 'ann' && !$dxchan->{ann};