+ my $ncall = $_[2];
+ my $ucall = $_[1];
+
+ eph_del_regex("^PC16\\^$ncall.*$ucall");
+
+ # do I want users from this channel?
+ unless ($self->user->wantpc16) {
+ dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
+ return;
+ }
+ if ($ncall eq $main::mycall) {
+ dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
+ return;
+ }
+
+ RouteDB::delete($ncall, $self->{call});
+
+ # do we believe this call?
+# unless ($ncall eq $self->{call} || $self->is_believed($ncall)) {
+# if (my $ivp = Investigate::get($ncall, $self->{call})) {
+# $ivp->store_pcxx($pcno,$line,$origin,@_);
+# } else {
+# dbg("PCPROT: We don't believe $ncall on $self->{call}") 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;
+ }
+
+ $dxchan = $parent->dxchan;
+ if ($dxchan && $dxchan ne $self) {
+ dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
+ return;
+ }
+
+ # is he under the control of the new protocol?
+# if ($parent && $parent->np) {
+# dbg("PCPROT: $ncall aranea node, ignored") if isdbg('chanerr');
+# return;
+# }
+
+ # input filter if required and then remove user if present
+ if ($parent && !$parent->np) {
+# return unless $self->in_filter_route($parent);
+ $parent->del_user($uref) if $uref;
+ }
+
+ if (eph_dup($line)) {
+ dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
+ return;
+ }
+
+ $self->route_pc17($origin, $line, $parent, $uref) if (DXChannel::get($parent->call) || $parent->np);
+}
+
+# link request
+sub handle_18
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ $self->state('init');
+
+ # record the type and version offered
+ if ($_[1] =~ /DXSpider Version: (\d+\.\d+) Build: (\d+\.\d+)/) {
+ $self->version(0 + $1);
+ $self->user->version(0 + $1);
+ $self->build(0 + $2);
+ $self->user->build(0 + $2);
+ unless ($self->is_spider) {
+ $self->user->sort('S');
+ $self->user->put;
+ $self->sort('S');
+ }
+ } else {
+ $self->version(50.0);
+ $self->version($_[2] / 100) if $_[2] && $_[2] =~ /^\d+$/;
+ $self->user->version($self->version);
+ }
+
+ # first clear out any nodes on this dxchannel
+ my $parent = Route::Node::get($origin);
+ my @rout = $parent->del_nodes;
+ $self->route_pc21($origin, $line, @rout, $parent) if @rout;
+ $self->send_local_config();
+ $self->send(pc20());
+}
+
+# incoming cluster list
+sub handle_19
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+
+ my $i;
+ my $newline = "PC19^";
+
+ # new routing list
+ my @rout;
+
+ # first get the INTERFACE node
+ my $parent = Route::Node::get($origin);
+ unless ($parent) {
+ dbg("DXPROT: my parent $origin has disappeared");
+ $self->disconnect;
+ return;
+ }
+
+ # parse the PC19
+ for ($i = 1; $i < $#_-1; $i += 4) {
+ my $here = $_[$i];
+ my $call = uc $_[$i+1];
+ my $conf = $_[$i+2];
+ my $ver = $_[$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 unless $ver > 5000; # only works with version 5 software that isn't a passive node
+ 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 $origin trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
+ next;
+ }
+
+ # 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->priv(1); # I have relented and defaulted nodes
+ $user->lockout(1);
+ $user->homenode($call);
+ $user->node($call);
+ }
+ $user->sort('A') unless $user->is_node;
+
+ RouteDB::update($call, $origin);
+
+ my $genline = "PC19^$here^$call^$conf^$ver^$_[-1]^";
+ if (eph_dup($genline)) {
+ dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
+ next;
+ }
+
+ my $r = Route::Node::get($call);
+ my $flags = $here;
+
+ # is he under the control of the new protocol and not my interface call?
+ if ($call ne $origin && $r && $r->np) {
+ dbg("PCPROT: $call aranea node, ignored") if isdbg('chanerr');
+ next;
+ }
+ # modify the routing table if it is in it, otherwise store it in the pc19list for now
+ if ($r) {
+ my $ar;
+ if ($call ne $parent->call) {
+ if ($self->in_filter_route($r)) {
+ $ar = $parent->add($call, $ver, $flags);
+ push @rout, $ar if $ar;
+ } else {
+ next;
+ }
+ } else {
+ if ($r->version != $ver || $r->flags != $flags) {
+ $r->version($ver);
+ $r->flags($flags);
+ push @rout, $r;
+ }
+ }
+ } else {
+
+ # if he is directly connected or allowed then add him, otherwise store him up for later
+ if ($call eq $origin || $user->wantroutepc19) {
+ my $new = Route->new($call); # throw away
+ if ($self->in_filter_route($new)) {
+ my $ar = $parent->add($call, $ver, $flags);
+ $user->wantroutepc19(1) unless defined $user->wantroutepc19;
+ push @rout, $ar if $ar;
+ } 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;
+
+ $user->lastin($main::systime) unless DXChannel::get($call);
+ $user->put;
+ }
+
+ # we only output information that we regard as reliable
+ @rout = grep {$_ && (DXChannel::get($_->{call}) || $_->np) } @rout;
+ $self->route_pc19($origin, $line, @rout) if @rout;
+}
+
+# send local configuration
+sub handle_20
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ $self->send_local_config();
+ $self->send(pc22());
+ $self->state('normal');
+ $self->{lastping} = 0;
+ my $thing = Thingy::Rt->new(user=>$self->{call});
+ my $nref = Route::Node::get($self->{call});
+ $thing->copy_pc16_data($nref);
+ $thing->broadcast($self);
+ $self->lastcf($main::systime);
+}
+
+# delete a cluster from the list
+sub handle_21
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $call = uc $_[1];
+
+ eph_del_regex("^PC1[679].*$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) {
+ $self->disconnect(1);
+ return;
+ }
+
+ RouteDB::delete($call, $origin);
+
+ # check if we believe this
+# unless ($call eq $origin || $self->is_believed($call)) {
+# if (my $ivp = Investigate::get($call, $origin)) {
+# $ivp->store_pcxx($pcno,$line,$origin,@_);
+# } else {
+# dbg("PCPROT: We don't believe $call on $origin") if isdbg('chanerr');
+# }
+# return;
+# }
+
+ # check to see if we are in the pc19list, if we are then don't bother with any of
+ # this routing table manipulation, just remove it from the list and dump it
+ my @rout;
+
+ my $parent = Route::Node::get($origin);
+ unless ($parent) {
+ dbg("DXPROT: my parent $origin 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 $origin trying to alter locally connected $call, ignored!") if isdbg('chanerr');
+ return;
+ }
+
+ # input filter it
+ return unless $self->in_filter_route($node);
+
+ # is he under the control of the new protocol?
+ if ($node->np) {
+ dbg("PCPROT: $call aranea node, ignored") if isdbg('chanerr');
+ return;
+ }
+
+ # routing objects
+ push @rout, $node->del($parent);
+ }
+ } else {
+ dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
+ return;
+ }
+
+ @rout = grep {$_ && (DXChannel::get($_->{call}) || $_->np) } @rout;
+ $self->route_pc21($origin, $line, @rout) if @rout;
+}
+
+
+sub handle_22
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ $self->state('normal');
+ $self->{lastping} = 0;
+ my $thing = Thingy::Rt->new(user=>$self->{call});
+ my $nref = Route::Node::get($self->{call});
+ $thing->copy_pc16_data($nref);
+ $thing->broadcast($self);
+ $self->lastcf($main::systime);
+}
+
+# WWV info
+sub handle_23
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+
+ # route foreign' pc27s
+ if ($pcno == 27) {
+ if ($_[8] ne $main::mycall) {
+ $self->route($_[8], $line);
+ return;
+ }
+ }
+
+ # only do a rspf check on PC23 (not 27)
+ if ($pcno == 23) {
+ return if $rspfcheck and !$self->rspfcheck(1, $_[8], $_[7])
+ }
+
+ # do some de-duping
+ my $d = cltounix($_[1], sprintf("%02d18Z", $_[2]));
+ my $sfi = unpad($_[3]);
+ my $k = unpad($_[4]);
+ my $i = unpad($_[5]);
+ my ($r) = $_[6] =~ /R=(\d+)/;
+ $r = 0 unless $r;
+ if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
+ dbg("PCPROT: WWV Date ($_[1] $_[2]) out of range") if isdbg('chanerr');
+ return;
+ }
+ if (Geomag::dup($d,$sfi,$k,$i,$_[6])) {
+ dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
+ return;
+ }
+ $_[7] =~ s/-\d+$//o; # remove spotter's ssid
+
+ my $wwv = Geomag::update($d, $_[2], $sfi, $k, $i, @_[6..8], $r);
+
+ my $rep;
+ eval {
+ $rep = Local::wwv($self, $_[1], $_[2], $sfi, $k, $i, @_[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, $_[2], $sfi, $k, $i, @_[6..8]);
+}
+
+# set here status
+sub handle_24
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $call = uc $_[1];
+ my ($nref, $uref);
+ $nref = Route::Node::get($call);
+ $uref = Route::User::get($call);
+ return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
+
+ if (eph_dup($line)) {
+ dbg("PCPROT: Dup PC24 ignored\n") if isdbg('chanerr');
+ return;