From: Dirk Koopman <djk@tobit.co.uk>
Date: Fri, 6 Jul 2007 09:01:18 +0000 (+0100)
Subject: Fix the over midnight ID rollover calculation
X-Git-Tag: 1.55~112
X-Git-Url: http://dxcluster.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=ca3a14c5a22a621e9b69ecf0acc2a5da08c5ab91;p=spider.git

Fix the over midnight ID rollover calculation

Also use a big enough past age limit to cope with inactive nodes
that only output a config record and nowt much else, so that they
don't time out.

Add an 'id too far in the future' compared with current systime
check.
---

diff --git a/Changes b/Changes
index 5708fce2..138b8740 100644
--- a/Changes
+++ b/Changes
@@ -1,3 +1,9 @@
+06Jul07=======================================================================
+1. re-arrange id checking so that it is more logical and check that config
+records, that can be an hour coming, are not thoughtlessly ignored, thus
+causing nodes to time out.
+2. Make sure that the 'over midnight' distance calculation actually does what
+is required!
 05Jul07=======================================================================
 1. Try to make sure that the node config broadcasts are actually sent...
 03Jul07=======================================================================
diff --git a/perl/DXProtHandle.pm b/perl/DXProtHandle.pm
index 7d2968ce..a42ba33e 100644
--- a/perl/DXProtHandle.pm
+++ b/perl/DXProtHandle.pm
@@ -46,7 +46,8 @@ use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restim
 			$eph_pc15_restime $pc9x_past_age $pc9x_future_age
 		   );
 
-$pc9x_past_age = 15*60;			# maximum age in the past of a px9x
+$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
 
 # incoming talk commands
@@ -1422,14 +1423,19 @@ sub check_pc9x_t
 		if ($parent->call ne $main::mycall) {
 			my $lastid = $parent->lastid->{$pc} || 0;
 			if ($t < $lastid) {
-				if ($lastid-86400+$t > $pc9x_past_age) {
-					dbg("PCPROT: dup id on $t <= $lastid (midnight rollover), ignored") if isdbg('chanerr');
+				if ($t+86400-$lastid > $pc9x_past_age) {
+					dbg("PCPROT: dup id on $t <= $lastid, ignored") if isdbg('chanerr');
 					return;
 				}
-			}
-			if ($lastid >= $t) {
-				dbg("PCPROT: dup id on $call $lastid >= $t, ignored") if isdbg('chanerr');
+			} elsif ($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 $t too far in the future, ignored") if isdbg('chanerr');
+					return;
+				}
 			}
 		}
 	} elsif ($create) {
diff --git a/perl/Version.pm b/perl/Version.pm
index 3a0dca8b..d6dc5475 100644
--- a/perl/Version.pm
+++ b/perl/Version.pm
@@ -11,6 +11,6 @@ use vars qw($version $subversion $build);
 
 $version = '1.54';
 $subversion = '0';
-$build = '102';
+$build = '103';
 
 1;