mega-merge of major parts of mojo
[spider.git] / perl / DXProt.pm
index 33f962fda2cd583cde3a12d18d2c3ea1d30f2273..b6c0b75903f61497b0343cad62899d09ab0d7eca 100644 (file)
@@ -4,8 +4,8 @@
 #
 # Copyright (c) 1998 Dirk Koopman G1TLH
 #
-# $Id$
-# 
+#
+#
 
 package DXProt;
 
@@ -32,23 +32,23 @@ use DXHash;
 use Route;
 use Route::Node;
 use Script;
-use RouteDB;
 use DXProtHandle;
 
 use strict;
 
-use vars qw($VERSION $BRANCH);
 use vars qw($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
+                       $pc19_version $myprot_version
+                       %nodehops $baddx $badspotter $badnode $censorpc
                        $allowzero $decode_dk0wcy $send_opernam @checklist
-                       $eph_pc15_restime $pc92_update_period $last_pc92_update
+                       $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
                   );
 
-($VERSION, $BRANCH) = dxver(q$Revision$);
-
 $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
 
@@ -64,29 +64,31 @@ $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;
+$eph_restime = 60;
+$eph_info_restime = 18*60*60;
 $eph_pc15_restime = 6*60;
 $eph_pc34_restime = 30;
 $pingint = 5*60;
 $obscount = 2;
-$chatdupeage = 20 * 60 * 60;
+$chatdupeage = 20 * 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
+$pc19_version = 5455;                  # the visible version no for outgoing PC19s generated from pc59
+$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 = 
+@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) ],                                      # 
+ [ 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
@@ -132,7 +134,7 @@ $last_pc92_update = time + int rand(180);           # the last time a PC92 config update
  undef,
  undef,
  undef,                                                        # pc60
- undef,
+ [ qw(i f m d t m c c a h) ],          # pc61
  undef,
  undef,
  undef,
@@ -161,7 +163,10 @@ $last_pc92_update = time + int rand(180);          # the last time a PC92 config update
  undef,
  undef,
  undef,
- [ qw(i c n) ],                                        # pc90
+ 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
@@ -170,18 +175,19 @@ sub check
 {
        my $n = shift;
        $n -= 10;
-       return 0 if $n < 0 || $n > @checklist; 
+       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] =~ /^[ \*]$/;
+               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') {                 
+               } elsif ($act eq 'i') {
                        ;                                       # do nothing
                } elsif ($act eq 'm') {
                        return $i unless is_pctext($_[$i]);
@@ -197,21 +203,41 @@ sub check
                        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);
+       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); 
+       $main::me = DXProt->new($main::mycall, 0, $user);
        $main::me->{here} = 1;
        $main::me->{state} = "indifferent";
        $main::me->{sort} = 'S';    # S for spider
@@ -221,15 +247,17 @@ sub init
        $main::me->{registered} = 1;
        $main::me->{version} = $main::version;
        $main::me->{build} = $main::build;
-       $main::me->{do_pc92} = 1;
-       $main::me->{via_pc92} = 1;
+       $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 
+sub new
 {
        my $self = DXChannel::alloc(@_);
 
@@ -244,7 +272,7 @@ sub new
                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;
+       $main::routeroot->add($call, '5000', Route::here(1), $self->{conn}->peerhost) if $call ne $main::mycall;
 
        return $self;
 }
@@ -259,17 +287,19 @@ sub start
        my $user = $self->{user};
 
        # log it
-       my $host = $self->{conn}->{peerhost};
+       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 $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};
@@ -285,7 +315,8 @@ sub start
        $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->{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)
@@ -294,12 +325,14 @@ sub start
        $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;
@@ -309,12 +342,12 @@ sub start
        $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;
 
@@ -324,6 +357,13 @@ sub start
        # 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;
 }
 
 #
@@ -333,7 +373,7 @@ sub start
 sub sendinit
 {
        my $self = shift;
-       $self->send(pc18());
+       $self->send(pc18(($self->{isolate} || !$self->user->wantpc9x) ? "" : " pc9x"));
 }
 
 #
@@ -350,12 +390,12 @@ sub normal
 
        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) {
@@ -371,12 +411,20 @@ sub normal
        }
 
        # 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";
+       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
@@ -385,9 +433,9 @@ sub normal
        my $sub = "handle_$pcno";
 
        if ($self->can($sub)) {
-               $self->$sub($pcno, $line, $origin, @field);
+               $self->$sub($pcno, $line, $origin, \@field);
        } else {
-               $self->handle_default($pcno, $line, $origin, @field);
+               $self->handle_default($pcno, $line, $origin, \@field);
        }
 }
 
@@ -401,54 +449,86 @@ sub process
        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 == $main::me;
+       # every ten seconds
+       if ($t - $last10 >= 10) {
+               # clean out ephemera
 
-               # 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}};
-                       }
+               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;
                }
-       }
 
-       Investigate::process();
+               foreach $dxchan (@dxchan) {
+                       next unless $dxchan->is_node;
+                       next if $dxchan == $main::me;
 
-       # every ten seconds
-       if ($t - $last10 >= 10) {       
-               # clean out ephemera 
+                       # send the pc50
+                       $dxchan->send($pc50s) if !$dxchan->{do_pc9x} && $pc50s;
 
-               eph_clean();
-               import_chat();
+                       # 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();
 
-               if ($main::systime >= $last_pc92_update + $pc92_update_period) {
-                       dbg("ROUTE: sending pc92 update") if isdbg('route');
-                       send_pc92_update();
+               # 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();
-                       $last_pc92_update = $main::systime + int rand(180);
+                       $main::me->broadcast_pc92_keepalive($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();
                }
-               
-               $last10 = $t;
        }
-       
+
        if ($main::systime - 3600 > $last_hour) {
                $last_hour = $main::systime;
        }
@@ -469,13 +549,22 @@ sub send_dx_spot
        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;
-               $dxchan->dx_spot($line, $self->{isolate}, @_, $self->{call});
+               if ($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});
+               }
        }
 }
 
@@ -540,7 +629,7 @@ sub wwv
        my $line = shift;
        my $isolate = shift;
        my ($filter, $hops);
-       
+
        if ($self->{wwvfilter}) {
                ($filter, $hops) = $self->{wwvfilter}->it(@_[7..$#_]);
                return unless $filter;
@@ -555,7 +644,7 @@ sub send_wcy_spot
        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) {
@@ -584,33 +673,35 @@ sub wcy
 sub send_announce
 {
        my $self = shift;
+       my $from_pc9x = shift;
        my $line = shift;
        my @dxchan = DXChannel::get_all();
        my $dxchan;
-       my $target;
+       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) 
-       } 
-       
+               my ($name) = split /\./, $_[3];
+               $target = "$name"; # put the rest in later (if bothered)
+       }
+
        if ($_[5] eq '1') {
-               $target = "WX"; 
+               $target = "WX";
                $to = '';
        }
        $target = "ALL" if !$target;
 
 
-       # obtain country codes etc 
-       my @a = Prefix::cty_data($_[0]);
+       # obtain country codes etc
+       my @a = Prefix::cty_data($from);
        my @b = Prefix::cty_data($_[4]);
        if ($self->{inannfilter}) {
-               my ($filter, $hops) = 
-                       $self->{inannfilter}->it(@_, $self->{call}, 
+               my ($filter, $hops) =
+                       $self->{inannfilter}->it(@_, $self->{call},
                                                                         @a[0..2],
                                                                         @b[0..2], $a[3], $b[3]);
                unless ($filter) {
@@ -619,24 +710,35 @@ sub send_announce
                }
        }
 
-       if (AnnTalk::dup($_[0], $_[1], $_[2])) {
-               dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');
-               return;
+       # the sysop ('*') thing is an attempt to minimise the damage caused by non-updated PC93 generators
+       if (AnnTalk::dup($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, $_[0], $text);
+       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 = 0;
+my $msgid = int rand(1000);
 
 sub nextchatmsgid
 {
@@ -649,24 +751,26 @@ sub nextchatmsgid
 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 = $line;
        }
-       
-       # obtain country codes etc 
-       my @a = Prefix::cty_data($_[0]);
+
+       # 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(@_, $self->{call}, 
+               my ($filter, $hops) =
+                       $self->{inannfilter}->it(@_, $self->{call},
                                                                         @a[0..2],
                                                                         @b[0..2], $a[3], $b[3]);
                unless ($filter) {
@@ -675,30 +779,34 @@ sub send_chat
                }
        }
 
-       if (AnnTalk::dup($_[0], $_[1], $_[2], $chatdupeage)) {
-               dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');
-               return;
+       if (AnnTalk::dup($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, $_[0], $text);
+       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) {
-               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 $from_pc9x && $dxchan->do_pc9x;
+                       next unless $dxchan->is_spider && $dxchan->do_pc9x;
                        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], 
+
+               $dxchan->chat($line, $self->{isolate}, $target, $_[1],
                                          $text, @_, $self->{call}, @a[0..2], @b[0..2]);
        }
 }
@@ -722,7 +830,21 @@ sub announce
 
 sub chat
 {
-       goto &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 $filter;
+       }
+       if (($self->is_spider || $self->is_ak1a) && $_[1] ne $main::mycall) {
+               send_prot_line($self, $filter, $hops, $isolate, $line);
+       }
 }
 
 
@@ -733,42 +855,50 @@ sub send_local_config
        dbg('DXProt::send_local_config') if isdbg('trace');
 
        # send our nodes
-       if ($self->{do_pc92}) { 
-               $self->send_pc92_config;
+       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 {
-               my $node;
-               my @nodes;
-               my @localnodes;
-               my @remotenodes;
+               # 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
 
-               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);
+               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;
                }
-       
-               # get all the users connected on the above nodes and send them out
+               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;
@@ -783,110 +913,101 @@ sub send_local_config
 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($main::routeroot, @localnodes);
+               return pc92c($node, @localnodes);
        } else {
                my @rout = map {my $r = Route::User::get($_); $r ? ($r) : ()} $node->users;
                return pc92c($node, @rout);
        }
 }
 
-sub gen_pc92_update
+sub send_last_pc92_config
 {
        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} && $_->{do_pc92} } DXChannel::get_all_nodes();
-               dbg("ROUTE: pc92 dxchan: " . join(',', map{$_->{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);
-                       }
-               }
+       my $node = shift;
+       if (my $l = $node->last_PC92C) {
+               $self->send($l);
+       } else {
+               $self->send_pc92_config($node);
        }
-       
-       # 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} && !$_->{do_pc92} } DXChannel::get_all_nodes();
-       dbg("ROUTE: non pc92 dxchan: " . join(',', map{$_->{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;
+       my $node = 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) {
-               $self->send($_);
+       $node->last_PC92C(gen_my_pc92_config($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 send_pc92_update
+sub broadcast_pc92_keepalive
 {
-       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);
+       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_pc92 || $_->via_pc92)} Route::Node::get_all();
+       my @nodes = grep {$_->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');
+                               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('route');
+                                       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('route');
+                       dbg("ROUTE: obscount on $n->{call} now $o") if isdbg('obscount');
                }
        }
        for (@rdel) {
@@ -925,19 +1046,6 @@ sub 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) {
@@ -949,7 +1057,7 @@ sub route
 }
 
 #
-# obtain the hops from the list for this callsign and pc no 
+# obtain the hops from the list for this callsign and pc no
 #
 
 sub get_hops
@@ -957,11 +1065,11 @@ sub get_hops
        my $pcno = shift;
        my $hops = $DXProt::hopcount{$pcno};
        $hops = $DXProt::def_hopcount if !$hops;
-       return "H$hops";       
+       return "H$hops";
 }
 
-# 
-# adjust the hop count on a per node basis using the user loadable 
+#
+# adjust the hop count on a per node basis using the user loadable
 # hop table if available or else decrement an existing one
 #
 
@@ -971,8 +1079,8 @@ sub adjust_hops
        my $s = shift;
        my $call = $self->{call};
        my $hops;
-       
-       if (($hops) = $s =~ /\^H(\d+)\^?~?$/o) {
+
+       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;
@@ -981,14 +1089,17 @@ sub adjust_hops
                        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;
+                       $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
@@ -1004,10 +1115,20 @@ sub process_rcmd
 {
        my ($self, $tonode, $fromnode, $user, $cmd) = @_;
        if ($tonode eq $main::mycall) {
-               my $ref = DXUser->get_current($fromnode);
+               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);
-               Log('rcmd', 'in', $ref->{priv}, $fromnode, $cmd);
-               if ($cmd !~ /^\s*rcmd/i && $cref && $ref && $cref->call eq $ref->homenode) { # not allowed to relay RCMDS!
+               unless ($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};
@@ -1023,7 +1144,7 @@ sub process_rcmd
                        $self->send_rcmd_reply($main::mycall, $fromnode, $user, "your attempt is logged, Tut tut tut...!");
                }
        } else {
-               my $ref = DXUser->get_current($tonode);
+               my $ref = DXUser::get_current($tonode);
                if ($ref && $ref->is_clx) {
                        $self->route($tonode, pc84($fromnode, $tonode, $user, $cmd));
                } else {
@@ -1048,7 +1169,7 @@ sub process_rcmd_reply
                        $dxchan->send($line) if $dxchan;
                }
        } else {
-               my $ref = DXUser->get_current($tonode);
+               my $ref = DXUser::get_current($tonode);
                if ($ref && $ref->is_clx) {
                        $self->route($tonode, pc85($fromnode, $tonode, $user, $line));
                } else {
@@ -1085,7 +1206,7 @@ sub addrcmd
        $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) {
@@ -1098,12 +1219,12 @@ sub addrcmd
 sub disconnect
 {
        my $self = shift;
-       my $pc39flag = shift;
+       my $pc39flag = shift || 0;
        my $call = $self->call;
 
        return if $self->{disconnecting}++;
-       
-       unless ($pc39flag && $pc39flag == 1) {
+
+       unless ($pc39flag == 1) {
                $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
        }
 
@@ -1112,32 +1233,16 @@ sub disconnect
 
        # 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($call);
-       
+       Route::delete_interface($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);
 
@@ -1147,19 +1252,59 @@ sub disconnect
        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) = @_;
-       
-       $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 $main::mycall;
+
+       if ($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
@@ -1170,14 +1315,20 @@ sub send_route
        my $self = shift;
        my $origin = shift;
        my $generate = shift;
-       my $no = shift;     # the no of things to filter on 
+       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) {
@@ -1185,7 +1336,7 @@ sub send_route
                                if ($filter) {
                                        push @rin, $r;
                                } else {
-                                       dbg("DXPROT: $self->{call}/" . $r->call . " rejected by output filter") if isdbg('chanerr');
+                                       dbg("PCPROT: $self->{call}/" . $r->call . " rejected by output filter") if isdbg('filter');
                                }
                        } else {
                                dbg("was sent a null value") if isdbg('chanerr');
@@ -1203,12 +1354,13 @@ sub send_route
                                $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
                                next unless $routeit;
                        }
-                       
+
                        $self->send($routeit);
                }
        }
 }
 
+# broadcast everywhere
 sub broadcast_route
 {
        my $self = shift;
@@ -1224,12 +1376,38 @@ sub broadcast_route
        }
        unless ($self->{isolate}) {
                foreach $dxchan (@dxchan) {
-                       next if $dxchan == $self;
-                       next if $dxchan == $main::me;
+                       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 $dxchan->{do_pc92};
-                       next if ($generate == \&pc16 || $generate==\&pc17) && !$dxchan->user->wantsendpc16;
+
+                       $dxchan->send_route($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, @_);
                }
        }
@@ -1240,17 +1418,18 @@ sub send_route_pc92
 {
        my $self = shift;
 
-       return unless $self->{do_pc92};
-       
+       return unless $self->{do_pc9x};
+
        my $origin = shift;
        my $generate = shift;
-       my $no = shift;     # the no of things to filter on 
+       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;
@@ -1263,15 +1442,15 @@ sub broadcast_route_pc9x
 
        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_pc92};
                        next unless $dxchan->isa('DXProt');
+                       next unless $dxchan->{do_pc9x};
 
                        $dxchan->send($line);
                }
@@ -1284,7 +1463,7 @@ sub route_pc16
        return unless $self->user->wantpc16;
        my $origin = shift;
        my $line = shift;
-       broadcast_route($self, $origin, \&pc16, $line, 1, @_);
+       broadcast_route_nopc9x($self, $origin, \&pc16, $line, 1, @_);
 }
 
 sub route_pc17
@@ -1293,7 +1472,7 @@ sub route_pc17
        return unless $self->user->wantpc16;
        my $origin = shift;
        my $line = shift;
-       broadcast_route($self, $origin, \&pc17, $line, 1, @_);
+       broadcast_route_nopc9x($self, $origin, \&pc17, $line, 1, @_);
 }
 
 sub route_pc19
@@ -1301,7 +1480,7 @@ sub route_pc19
        my $self = shift;
        my $origin = shift;
        my $line = shift;
-       broadcast_route($self, $origin, \&pc19, $line, scalar @_, @_);
+       broadcast_route_nopc9x($self, $origin, \&pc19, $line, scalar @_, @_);
 }
 
 sub route_pc21
@@ -1309,7 +1488,7 @@ sub route_pc21
        my $self = shift;
        my $origin = shift;
        my $line = shift;
-       broadcast_route($self, $origin, \&pc21, $line, scalar @_, @_);
+       broadcast_route_nopc9x($self, $origin, \&pc21, $line, scalar @_, @_);
 }
 
 sub route_pc24
@@ -1328,11 +1507,13 @@ sub route_pc41
        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, @_);
 }
 
@@ -1365,7 +1546,7 @@ 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');
@@ -1383,7 +1564,7 @@ sub eph_dup
        $s =~ s/\^H\d\d?\^?\~?$//;
        $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'); 
+       dbg("PCPROT: emphemeral duplicate") if $r && isdbg('chanerr');
        return $r;
 }
 
@@ -1401,7 +1582,7 @@ sub eph_del_regex
 sub eph_clean
 {
        my ($key, $val);
-       
+
        while (($key, $val) = each %eph) {
                if ($main::systime >= $val) {
                        delete $eph{$key};
@@ -1430,10 +1611,10 @@ sub run_cmd
 # 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
@@ -1446,7 +1627,7 @@ sub import_chat
                dbg("can\'t open $chatimportfn $!") if isdbg('msg');
                Log('msg', "can\'t open $chatimportfn $!");
                return;
-       } 
+       }
 
        my @names = readdir(DIR);
        closedir(DIR);
@@ -1457,7 +1638,7 @@ sub import_chat
                my $fn = "$chatimportfn/$name";
                next unless -f $fn;
                unless (open(MSG, $fn)) {
-                       dbg("can\'t open import file $fn $!") if isdbg('msg');
+                       dbg("can\'t open import file $fn $!") if isdbg('msg');
                        Log('msg', "can\'t open import file $fn $!");
                        unlink($fn);
                        next;
@@ -1471,22 +1652,42 @@ sub import_chat
 
                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}: $text\a", 'ann', undef, DXCommandmode->get_all());
-                               }
+                       if ($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 {
-                               my $msgid = nextchatmsgid();
-                               $text = "#$msgid $text";
-                               send_chat($main::me, pc12($main::mycall, $text, '*', $target), $main::mycall, '*', $text, $target, $main::mycall, '0');
+                               DXCommandmode::send_chats($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__ 
+__END__