#
# This module impliments the handlers for the protocal mode for a dx cluster
#
-# Copyright (c) 1998-2006 Dirk Koopman G1TLH
+# Copyright (c) 1998-2007 Dirk Koopman G1TLH
#
#
#
$investigation_int $pc19_version $myprot_version
%nodehops $baddx $badspotter $badnode $censorpc
$allowzero $decode_dk0wcy $send_opernam @checklist
- $eph_pc15_restime $pc9x_past_age $pc9x_future_age
+ $eph_pc15_restime $pc9x_past_age $pc9x_dupe_age
$pc10_dupe_age $pc92_slug_changes $last_pc92_slug
+ $pc92Ain $pc92Cin $pc92Din $pc92Kin $pc9x_time_tolerance
);
-$pc9x_past_age = 62*60; # maximum age in the past of a px9x (a config record might be the only
- # thing a node might send - once an hour)
-$pc9x_future_age = 5*60; # maximum age in the future ditto
+$pc9x_dupe_age = 60; # catch loops of circular (usually) D records
$pc10_dupe_age = 45; # just something to catch duplicate PC10->PC93 conversions
$pc92_slug_changes = 60; # slug any changes going outward for this long
$last_pc92_slug = 0; # the last time we sent out any delayed add or del PC92s
+$pc9x_time_tolerance = 15*60; # the time on a pc9x is allowed to be out by this amount
+$pc9x_past_age = (122*60)+ # maximum age in the past of a px9x (a config record might be the only
+ $pc9x_time_tolerance; # thing a node might send - once an hour and we allow an extra hour for luck)
+ # this is actually the partition between "yesterday" and "today" but old.
+
# incoming talk commands
sub handle_10
}
}
+# my ($hops) = $_[8] =~ /^H(\d+)/;
+
# is the spotted callsign blank? This should really be trapped earlier but it
# could break other protocol sentences. Also check for lower case characters.
if ($_[2] =~ /^\s*$/) {
#
# fix up qra locators of known users
- my $user = DXUser->get_current($spot[4]);
+ my $user = DXUser::get_current($spot[4]);
if ($user) {
my $qra = $user->qra;
unless ($qra && is_qra($qra)) {
}
# local processing
- my $r;
- eval {
- $r = Local::spot($self, @spot);
- };
- # dbg("Local::spot1 error $@") if isdbg('local') if $@;
- return if $r;
+ if (defined &Local::spot) {
+ my $r;
+ eval {
+ $r = Local::spot($self, @spot);
+ };
+ return if $r;
+ }
# DON'T be silly and send on PC26s!
return if $pcno == 26;
} else {
$self->route($_[2], $line);
}
+
+ # local processing
+ if (defined &Local::ann) {
+ my $r;
+ eval {
+ $r = Local::ann($self, $line, @_[1..6]);
+ };
+ return if $r;
+ }
}
sub handle_15
# reject this if we think it is a node already
my $r = Route::Node::get($call);
- my $u = DXUser->get_current($call) unless $r;
+ my $u = DXUser::get_current($call) unless $r;
if ($r || ($u && $u->is_node)) {
dbg("PCPROT: $call is a node") if isdbg('chanerr');
next;
}
# add this station to the user database, if required
- my $user = DXUser->get_current($ncall);
+ my $user = DXUser::get_current($ncall);
$user = DXUser->new($call) unless $user;
$user->homenode($parent->call) if !$user->homenode;
$user->node($parent->call);
$parent->del_user($uref);
# send info to all logged in thingies
- my $user = DXUser->get_current($ncall);
+ my $user = DXUser::get_current($ncall);
$self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
$self->tell_buddies('logoutb', $ucall, $ncall);
my $call = shift;
# add this station to the user database, if required (don't remove SSID from nodes)
- my $user = DXUser->get_current($call);
+ my $user = DXUser::get_current($call);
if (!$user) {
$user = DXUser->new($call);
$user->priv(1); # I have relented and defaulted nodes
# note this only takes the first one it gets
Geomag::update($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;
+ if (defined &Local::wwv) {
+ my $rep;
+ eval {
+ $rep = Local::wwv($self, $_[1], $_[2], $sfi, $k, $i, @_[6..8], $r);
+ };
+ return if $rep;
+ }
# DON'T be silly and send on PC27s!
return if $pcno == 27;
}
# add this station to the user database, if required
- my $user = DXUser->get_current($call);
+ my $user = DXUser::get_current($call);
$user = DXUser->new($call) unless $user;
if ($sort == 1) {
my $line = shift;
my $origin = shift;
+ return if (eph_dup($line));
+
my $call = $_[1];
RouteDB::update($call, $self->{call});
my $node = Route::Node::get($call);
if ($node) {
return unless $node->call eq $self->{call};
- $node->usercount($_[2]);
+ $node->usercount($_[2]) unless $node->users;
+ $node->reset_obs;
# input filter if required
- return unless $self->in_filter_route($node);
+# return unless $self->in_filter_route($node);
- $self->route_pc50($origin, $line, $node, $_[2], $_[3]) unless eph_dup($line);
+ unless ($self->{isolate}) {
+ DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
+ }
+# $self->route_pc50($origin, $line, $node, $_[2], $_[3]) unless eph_dup($line);
}
}
}
}
+sub handle_61 { goto &handle_11; }
+
# dunno but route it
sub handle_75
{
my $wcy = WCY::update($d, @_[2..12]);
- my $rep;
- eval {
- $rep = Local::wcy($self, @_[1..12]);
- };
- # dbg("Local::wcy error $@") if isdbg('local') if $@;
- return if $rep;
+ if (defined &Local::wcy) {
+ my $rep;
+ eval {
+ $rep = Local::wcy($self, @_[1..12]);
+ };
+ return if $rep;
+ }
# broadcast to the eager world
send_wcy_spot($self, $line, $d, @_[2..12]);
my $pc = shift;
my $create = shift;
+ # check that the time is between 0 >= $t < 86400
+ unless ($t >= 0 && $t < 86400) {
+ dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
+ return undef;
+ }
+
+ # check that the time of this pc9x is within tolerance (default 15 mins either way)
+ my $now = $main::systime - $main::systime_daystart ;
+ my $diff = abs($now - $t);
+ unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
+ my $c = ref $call ? $call->call : $call;
+ dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
+ return undef;
+ }
+
my $parent = ref $call ? $call : Route::Node::get($call);
if ($parent) {
# we only do this for external calls whose routing table
# the id on it is completely unreliable. Besides, only commands
# originating on this box will go through this code...
if ($parent->call ne $main::mycall) {
- my $lastid = $parent->lastid || 0;
- if ($t < $lastid) {
- if ($t+86400-$lastid > $pc9x_past_age) {
- dbg("PCPROT: dup id on $t <= $lastid, ignored") if isdbg('chanerr');
- return;
- }
- } elsif ($t == $lastid) {
- dbg("PCPROT: dup id on $t == $lastid, ignored") if isdbg('chanerr');
- return;
- } else {
- # $t > $lastid, check that the timestamp offered isn't too far away from 'now'
- if ($t+$main::systime_daystart-$main::systime > $pc9x_future_age ) {
- dbg("PCPROT: id $t too far in the future, ignored") if isdbg('chanerr');
- return;
+ my $lastid = $parent->lastid;
+ if (defined $lastid) {
+ if ($t < $lastid) {
+ # note that this is where we determine whether this pc9x has come in yesterday
+ # but is still greater (modulo 86400) than the lastid or is simply an old
+ # duplicate sentence. To determine this we need to do some module 86400
+ # arithmetic. High numbers mean that this is an old duplicate sentence,
+ # low numbers that it is a new sentence.
+ #
+ # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
+ # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
+ # 86378 respectively in the calculation below).
+ #
+ if ($t+86400-$lastid > $pc9x_past_age) {
+ dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
+ return undef;
+ }
+ } elsif ($t == $lastid) {
+ dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
+ return undef;
+ } else {
+ # check that if we have a low number in lastid that yesterday's numbers
+ # (likely in the 85000+ area) don't override them, thus causing flip flopping
+ if ($lastid+86400-$t < $pc9x_past_age) {
+ dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
+ return undef;
+ }
}
}
}
} elsif ($create) {
$parent = Route::Node->new($call);
+ } else {
+ dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
+ return undef;
+ }
+ if (isdbg('pc92dedupe')) {
+ my $exists = exists $parent->{lastid}; # naughty, naughty :-)
+ my $val = $parent->{lastid};
+ my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
+ dbg("PCPROT: $call pc92 id lastid $s -> $t");
}
- $parent->lastid($t) if $parent;
+ $parent->lastid($t);
return $parent;
}
+sub pc92_handle_first_slot
+{
+ my $self = shift;
+ my $slot = shift;
+ my $parent = shift;
+ my $t = shift;
+ my $oparent = $parent;
+
+ my @radd;
+
+ my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
+ if ($call && $is_node) {
+ if ($call eq $main::mycall) {
+ dbg("PCPROT: $call looped back onto $main::mycall, ignored") if isdbg('chanerr');
+ return;
+ }
+ # this is only accepted from my "self".
+ # this also kills configs from PC92 nodes with external PC19 nodes that are also
+ # locally connected. Local nodes always take precedence. But we remember the lastid
+ # to try to reduce the number of dupe PC92s for this external node.
+ if (DXChannel::get($call) && $call ne $self->{call}) {
+ $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
+ dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
+ return;
+ }
+ if ($is_extnode) {
+ # reparent to external node (note that we must have received a 'C' or 'A' record
+ # from the true parent node for this external before we get one for the this node
+ unless ($parent = Route::Node::get($call)) {
+ if ($is_extnode && $oparent) {
+ @radd = _add_thingy($oparent, $slot);
+ $parent = $radd[0];
+ } else {
+ dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
+ return;
+ }
+ }
+ $parent = check_pc9x_t($call, $t, 92) || return;
+ $parent->via_pc92(1);
+ $parent->PC92C_dxchan($self->{call});
+ }
+ } else {
+ dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
+ return;
+ }
+ $parent->here(Route::here($here));
+ $parent->version($version || $pc19_version) if $version;
+ $parent->build($build) if $build;
+ $parent->PC92C_dxchan($self->{call}) unless $self->{call} eq $parent->call;
+ return ($parent, @radd);
+}
+
# DXSpider routing entries
sub handle_92
{
my $t = $_[2];
my $sort = $_[3];
+ # this catches loops of A/Ds
+# if (eph_dup($line, $pc9x_dupe_age)) {
+# return;
+# }
+
if ($pcall eq $main::mycall) {
dbg("PCPROT: looped back, ignored") if isdbg('chanerr');
return;
return;
}
- my $parent = check_pc9x_t($pcall, $t, 92, 1) || return;
+ # don't create routing entries for D records that don't already exist
+ # this is what causes all those PC92 loops!
+ my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
my $oparent = $parent;
$parent->do_pc9x(1);
}
return;
}
+
+ } elsif ($sort eq 'K') {
+ $pc92Kin += length $line if $sort eq 'K';
+
+ # remember the last channel we arrived on
+ $parent->PC92C_dxchan($self->{call}) unless $self->{call} eq $parent->call;
+
+ my @ent = _decode_pc92_call($_[4]);
+
+ if (@ent) {
+ my $add;
+
+ ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t);
+ return unless $parent; # dupe
+
+ push @radd, $add if $add;
+ $parent->reset_obs;
+ $parent->version($ent[4]) if $ent[4];
+ $parent->build($ent[5]) if $ent[5];
+
+ dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
+ }
} elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
+ $pc92Ain += length $line if $sort eq 'A';
+ $pc92Cin += length $line if $sort eq 'C';
+ $pc92Din += length $line if $sort eq 'D';
+
# remember the last channel we arrived on
$parent->PC92C_dxchan($self->{call}) unless $self->{call} eq $parent->call;
# this is the main route section
# here is where all the routes are created and destroyed
- # cope with missing duplicate node calls in the first slot for A or D
+ # cope with missing duplicate node calls in the first slot
my $me = $_[4] || '';
- if (($sort eq 'A' || $sort eq 'D')) {
- $me ||= _encode_pc92_call($parent) if !$me ;
- } else {
- unless ($me) {
- dbg("PCPROT: this type of PC92 *must* have a node call in the first slot, ignored") if is_dbg('chanerr');
- return;
- }
- }
+ $me ||= _encode_pc92_call($parent) unless $me ;
- my @ent = map {[ _decode_pc92_call($_) ]} grep {$_ && /^[0-7]/} $me, @_[5 .. $#_];
+ my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @_[5 .. $#_];
if (@ent) {
# except in the case of 'A' or 'D' in which the $pcall is used
# otherwise use the node call and update any information
# that needs to be done.
- my ($call, $is_node, $is_extnode, $here, $version, $build) = @{$ent[0]};
- if ($call && $is_node) {
- if ($call eq $main::mycall) {
- dbg("PCPROT: $call looped back onto $main::mycall, ignored") if isdbg('chanerr');
- return;
- }
- # this is only accepted from my "self".
- # this also kills configs from PC92 nodes with external PC19 nodes that are also
- # locally connected. Local nodes always take precedence. But we remember the lastid
- # to try to reduce the number of dupe PC92s for this external node.
- if (DXChannel::get($call) && $call ne $self->{call}) {
- $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
- dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
- return;
- }
- if ($is_extnode) {
- # reparent to external node (note that we must have received a 'C' or 'A' record
- # from the true parent node for this external before we get one for the this node
- unless ($parent = Route::Node::get($call)) {
- if ($is_extnode && $oparent) {
- @radd = _add_thingy($oparent, $ent[0]);
- $parent = $radd[0];
- } else {
- dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
- return;
- }
- }
- $parent = check_pc9x_t($call, $t, 92) || return;
- $parent->via_pc92(1);
- $parent->PC92C_dxchan($self->{call});
- }
- } else {
- dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
- return;
- }
- $parent->here(Route::here($here));
- $parent->version($version || $pc19_version) if $version;
- $parent->build($build) if $build && $build > $parent->build;
- $parent->PC92C_dxchan($self->{call}) unless $self->{call} eq $parent->call;
+ my $add;
+
+ ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t);
+ return unless $parent; # dupe
+
shift @ent;
+ push @radd, $add if $add;
}
# do a pass through removing any references to either locally connected nodes or mycall
my @nent;
for (@ent) {
- next unless $_;
+ next unless $_ && @$_;
if ($_->[0] eq $main::mycall || DXChannel::get($_->[0])) {
dbg("PCPROT: $_->[0] refers to locally connected node, ignored") if isdbg('chanerr');
next;
} elsif ($sort eq 'C') {
my (@nodes, @users);
- # we only reset obscounts on config records
- $oparent->reset_obs;
- dbg("ROUTE: reset obscount on $pcall now " . $oparent->obscount) if isdbg('obscount');
- if ($oparent != $parent) {
- $parent->reset_obs;
- dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
- }
+ # we reset obscounts on config records as well as K records
+ $parent->reset_obs;
+ dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
#
foreach my $r (@nent) {
return;
}
+ # ignore PC93 coming in from outside this node with a target of local
+ if ($to eq 'LOCAL' && $self != $main::me) {
+ dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
+ return;
+ }
+
# if it is routeable then then treat it like a talk
my $ref = Route::get($to);
if ($ref) {
# chat messages to non-pc9x nodes
$self->send_chat(1, pc12($from, $text, undef, $to, undef, $pcall), $from, '*', $text, $to, $pcall, '0');
}
- $self->broadcast_route_pc9x($pcall, undef, $line, 0);
+
+ # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
+ $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
}
# if get here then rebroadcast the thing with its Hop count decremented (if
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