+ if ($pcno == 13) {
+ last SWITCH;
+ }
+ if ($pcno == 14) {
+ last SWITCH;
+ }
+ if ($pcno == 15) {
+ last SWITCH;
+ }
+
+ if ($pcno == 16) { # add a user
+
+ # general checks
+ my $dxchan;
+ my $ncall = $field[1];
+ my $newline = "PC16^";
+
+ if ($ncall eq $main::mycall) {
+ dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
+ return;
+ }
+ $dxchan = DXChannel->get($ncall);
+ if ($dxchan && $dxchan ne $self) {
+ dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
+ return;
+ }
+ my $parent = Route::Node::get($ncall);
+ unless ($parent) {
+ dbg("PCPROT: Node $ncall not in config") if isdbg('chanerr');
+ return;
+ }
+
+ # input filter if required
+ return unless $self->in_filter_route($parent);
+
+ my $i;
+ my @rout;
+ for ($i = 2; $i < $#field; $i++) {
+ my ($call, $conf, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
+ next unless $call && $conf && defined $here && is_callsign($call);
+ next if $call eq $main::mycall;
+
+ eph_del_regex("^PC17\^$call\^$ncall");
+
+ $conf = $conf eq '*';
+
+ # reject this if we think it is a node already
+ my $r = Route::Node::get($call);
+ my $u = DXUser->get_current($call) unless $r;
+ if ($r || ($u && $u->is_node)) {
+ dbg("PCPROT: $call is a node") if isdbg('chanerr');
+ next;
+ }
+
+ $r = Route::User::get($call);
+ my $flags = Route::here($here)|Route::conf($conf);
+
+ if ($r) {
+ if ($r->flags != $flags) {
+ $r->flags($flags);
+ push @rout, $r;
+ }
+ $r->addparent($parent);
+ } else {
+ push @rout, $parent->add_user($call, $flags);
+ }
+
+ # add this station to the user database, if required
+ $call =~ s/-\d+$//o; # remove ssid for users
+ my $user = DXUser->get_current($call);
+ $user = DXUser->new($call) if !$user;
+ $user->homenode($parent->call) if !$user->homenode;
+ $user->node($parent->call);
+ $user->lastin($main::systime) unless DXChannel->get($call);
+ $user->put;
+ }
+
+ if (eph_dup($line)) {
+ dbg("PCPROT: dup PC16 detected") if isdbg('chanerr');
+ return;
+ }
+
+ # queue up any messages (look for privates only)
+ DXMsg::queue_msg(1) if $self->state eq 'normal';
+
+ $self->route_pc16($parent, @rout) if @rout;
+ return;
+ }
+
+ if ($pcno == 17) { # remove a user
+ my $dxchan;
+ my $ncall = $field[2];
+ my $ucall = $field[1];
+
+ eph_del_regex("^PC16.*$ncall.*$ucall");
+
+ if ($ncall eq $main::mycall) {
+ dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
+ return;
+ }
+ $dxchan = DXChannel->get($ncall);
+ if ($dxchan && $dxchan ne $self) {
+ dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
+ return;
+ }
+
+ my $uref = Route::User::get($ucall);
+ unless ($uref) {
+ dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
+ return;
+ }
+ my $parent = Route::Node::get($ncall);
+ unless ($parent) {
+ dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
+ return;
+ }
+
+ # input filter if required
+ return unless $self->in_filter_route($parent);
+
+ my @rout = $parent->del_user($uref);
+
+ if (eph_dup($line)) {
+ dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
+ return;
+ }
+
+ $self->route_pc17($parent, @rout) if @rout;
+ return;
+ }
+
+ if ($pcno == 18) { # link request
+ $self->state('init');
+
+ # first clear out any nodes on this dxchannel
+ my $parent = Route::Node::get($self->{call});
+ my @rout = $parent->del_nodes;
+ $self->route_pc21(@rout, $parent) if @rout;
+ $self->send_local_config();
+ $self->send(pc20());
+ return; # we don't pass these on
+ }
+
+ if ($pcno == 19) { # incoming cluster list
+ my $i;
+ my $newline = "PC19^";
+
+ # new routing list
+ my @rout;
+ my $parent = Route::Node::get($self->{call});
+ unless ($parent) {
+ dbg("DXPROT: my parent $self->{call} has disappeared");
+ $self->disconnect;
+ return;
+ }
+
+ # parse the PC19
+ for ($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;
+
+ # 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);
+ $user->put;
+ }
+
+ if (eph_dup($line)) {
+ dbg("PCPROT: dup PC19 detected") if isdbg('chanerr');
+ return;
+ }
+
+ $self->route_pc19(@rout) if @rout;
+ return;
+ }
+
+ if ($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");
+
+ my @rout;
+ my $parent = Route::Node::get($self->{call});
+ unless ($parent) {
+ dbg("DXPROT: my parent $self->{call} has disappeared");
+ $self->disconnect;
+ return;
+ }
+ my $node = Route::Node::get($call);
+ if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
+ if ($call eq $self->{call}) {
+ dbg("PCPROT: Trying to disconnect myself with PC21") if isdbg('chanerr');
+ return;
+ }
+
+ if ($node) {
+ # input filter it
+ return unless $self->in_filter_route($node);
+
+ # routing objects
+ push @rout, $node->del($parent);
+ }
+ } else {
+ dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
+ return;
+ }
+
+ if (eph_dup($line)) {
+ dbg("PCPROT: dup PC21 detected") if isdbg('chanerr');
+ return;
+ }
+
+ $self->route_pc21(@rout) if @rout;
+ return;
+ }
+
+ if ($pcno == 22) {
+ $self->state('normal');
+ $self->{lastping} = 0;
+ return;
+ }
+
+ if ($pcno == 23 || $pcno == 27) { # WWV info
+
+ # route 'foreign' pc27s
+ if ($pcno == 27) {
+ if ($field[8] ne $main::mycall) {
+ $self->route($field[8], $line);
+ return;
+ }
+ }
+
+ # do some de-duping
+ my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
+ my $sfi = unpad($field[3]);
+ my $k = unpad($field[4]);
+ my $i = unpad($field[5]);
+ 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 || $field[2] > 23) {
+ dbg("PCPROT: WWV Date ($field[1] $field[2]) out of range") if isdbg('chanerr');
+ return;
+ }
+ if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
+ dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
+ return;
+ }
+ $field[7] =~ s/-\d+$//o; # remove spotter's ssid
+
+ my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
+
+ my $rep;
+ eval {
+ $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
+ };
+# dbg("Local::wwv2 error $@") if isdbg('local') if $@;
+ return if $rep;
+
+ # DON'T be silly and send on PC27s!
+ return if $pcno == 27;
+
+ # broadcast to the eager world
+ send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
+ return;
+ }
+
+ if ($pcno == 24) { # set here status
+ my $call = uc $field[1];
+ my ($nref, $uref);
+ $nref = Route::Node::get($call);
+ $uref = Route::User::get($call);
+ return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
+
+ unless (eph_dup($line)) {
+ $nref->here($field[2]) if $nref;
+ $uref->here($field[2]) if $uref;
+ my $ref = $nref || $uref;
+ return unless $self->in_filter_route($ref);
+ $self->route_pc24($ref, $field[3]);
+ }
+ return;