- # parse the PC19
- for ($i = 1; $i < $#field-1; $i += 4) {
- my $here = $field[$i];
- my $call = uc $field[$i+1];
- my $conf = $field[$i+2];
- my $ver = $field[$i+3];
- next unless defined $here && defined $conf && is_callsign($call);
-
- eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
-
- # check for sane parameters
-# $ver = 5000 if $ver eq '0000';
- next if $ver < 5000; # only works with version 5 software
- next if length $call < 3; # min 3 letter callsigns
- next if $call eq $main::mycall;
-
- # check that this PC19 isn't trying to alter the wrong dxchan
- my $dxchan = DXChannel->get($call);
- if ($dxchan && $dxchan != $self) {
- dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
- next;
- }
-
- # update it if required
- my $r = Route::Node::get($call);
- my $flags = Route::here($here)|Route::conf($conf);
- if ($r) {
- my $ar;
- if ($call ne $parent->call) {
- if ($self->in_filter_route($r)) {
- $ar = $parent->add($call, $ver, $flags);
- push @rout, $ar if $ar;
- } else {
- next;
- }
- }
- if ($r->version ne $ver || $r->flags != $flags) {
- $r->version($ver);
- $r->flags($flags);
- push @rout, $r unless $ar;
- }
- } else {
- if ($call eq $self->{call}) {
- dbg("DXPROT: my channel route for $call has disappeared");
- next;
- };
-
- my $new = Route->new($call); # throw away
- if ($self->in_filter_route($new)) {
- my $r = $parent->add($call, $ver, $flags);
- push @rout, $r;
- } else {
- next;
- }
- }
-
- # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
- my $mref = DXMsg::get_busy($call);
- $mref->stop_msg($call) if $mref;
-
- # add this station to the user database, if required (don't remove SSID from nodes)
- my $user = DXUser->get_current($call);
- if (!$user) {
- $user = DXUser->new($call);
- $user->sort('A');
- $user->priv(1); # I have relented and defaulted nodes
- $user->lockout(1);
- $user->homenode($call);
- $user->node($call);
- }
- $user->lastin($main::systime) unless DXChannel->get($call);
- $user->put;
- }
-
-
- $self->route_pc19(@rout) if @rout;
- return;
- }
-
- if ($pcno == 20) { # send local configuration
- $self->send_local_config();
- $self->send(pc22());
- $self->state('normal');
- $self->{lastping} = 0;
- return;
- }
-
- if ($pcno == 21) { # delete a cluster from the list
- my $call = uc $field[1];
-
- eph_del_regex("^PC1[79].*$call");
-
- # if I get a PC21 from the same callsign as self then treat it
- # as a PC39: I have gone away
- if ($call eq $self->call) {
- $self->disconnect(1);
- return;
- }
-
- my @rout;
- my $parent = Route::Node::get($self->{call});
- unless ($parent) {
- dbg("DXPROT: my parent $self->{call} has disappeared");
- $self->disconnect;
- return;
- }
- if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
- my $node = Route::Node::get($call);
- if ($node) {
-
- my $dxchan = DXChannel->get($call);
- if ($dxchan && $dxchan != $self) {
- dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chanerr');
- return;
- }