- return;
- }
- delete $pc19list{$ncall};
- }
- } else {
- dbg("PCPROT: Node $ncall not in config") if isdbg('chanerr');
- return;
- }
- } else {
-
- $dxchan = $parent->dxchan;
- if ($dxchan && $dxchan ne $self) {
- dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
- return;
- }
-
- # input filter if required
- return unless $self->in_filter_route($parent);
- }
-
- my $i;
- my @rout;
- for ($i = 2; $i < $#_; $i++) {
- my ($call, $conf, $here) = $_[$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) {
- my $au = $r->addparent($parent);
- if ($r->flags != $flags) {
- $r->flags($flags);
- $au = $r;
- }
- push @rout, $r if $au;
- } 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;
- }
-
- $self->route_pc16($parent, @rout) if @rout;
-}
-
-# remove a user
-sub handle_17
-{
- my $self = shift;
- my $pcno = shift;
- my $line = shift;
- my $dxchan;
- 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;
- }
-
- 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;
- }
-
- # input filter if required
- return unless $self->in_filter_route($parent);
-
- $parent->del_user($uref);
-
- if (eph_dup($line)) {
- dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
- return;
- }
-
- $self->route_pc17($parent, $uref);
-}
-
-# link request
-sub handle_18
-{
- my $self = shift;
- my $pcno = shift;
- my $line = shift;
- $self->state('init');
-
- # record the type and version offered
- if ($_[1] =~ /DXSpider Version: (\d+\.\d+) Build: (\d+\.\d+)/) {
- $self->version(53 + $1);
- $self->user->version(53 + $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 $parent = Route::Node::get($self->{call});
- my @rout = $parent->del_nodes;
- $self->route_pc21(@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 $i;
- my $newline = "PC19^";
-
- if (eph_dup($line)) {
- dbg("PCPROT: dup PC19 detected") if isdbg('chanerr');
- return;
- }
-
- # 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 < $#_-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 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;
- }
-
- # 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);
- }
-
- my $r = Route::Node::get($call);
- my $flags = Route::here($here)|Route::conf($conf);
-
- # modify the routing table if it is in it, otherwise store it in the pc19list for now
- if ($r) {
- my $ar;
- if ($call ne $parent->call) {
- if ($self->in_filter_route($r)) {
- $ar = $parent->add($call, $ver, $flags);
- push @rout, $ar if $ar;
- } else {
- next;
- }
- }
- if ($r->version ne $ver || $r->flags != $flags) {
- $r->version($ver);
- $r->flags($flags);
- push @rout, $r unless $ar;
- }
- } else {
-
- # if he is directly connected or allowed then add him, otherwise store him up for later
- if ($call eq $self->{call} || $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;
- }
- } else {
- $pc19list{$call} = [] unless exists $pc19list{$call};
- my $nl = $pc19list{$call};
- push @{$pc19list{$call}}, [$self->{call}, $ver, $flags] unless grep $_->[0] eq $self->{call}, @$nl;
- }
- }
-
- # 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;
- }
-
-
- $self->route_pc19(@rout) if @rout;
-}
-
-# send local configuration
-sub handle_20
-{
- my $self = shift;
- my $pcno = shift;
- my $line = shift;
- $self->send_local_config();
- $self->send(pc22());
- $self->state('normal');
- $self->{lastping} = 0;
-}
-
-# delete a cluster from the list
-sub handle_21
-{
- my $self = shift;
- my $pcno = shift;
- my $line = 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;
- }
-
- # 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;
- if (my $nl = $pc19list{$call}) {
- $pc19list{$call} = [ grep {$_->[0] ne $self->{call}} @$nl ];
- delete $pc19list{$call} unless @{$pc19list{$call}};
- } else {
-
- 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;