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#981 inspect ports lastchange for uptime wrap only after filtering ports

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This commit is contained in:
Oliver Gorwits
2023-02-27 18:00:21 +00:00
parent 692a797f7c
commit de1ec0dc67
1 changed files with 32 additions and 27 deletions
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59
lib/App/Netdisco/Worker/Plugin/Discover/Properties.pm
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@@ -247,32 +247,6 @@ register_worker({ phase => 'early', driver => 'snmp' }, sub {
next PORT;
}
my $lc = $i_lastchange->{$entry} || 0;
if (not $dev_uptime_wrapped and $lc > $dev_uptime) {
debug sprintf ' [%s] interfaces - device uptime wrapped (%s) - correcting',
$device->ip, $port;
$device->uptime( $dev_uptime + 2**32 );
$dev_uptime_wrapped = 1;
}
if ($device->is_column_changed('uptime') and $lc) {
if ($lc < $dev_uptime) {
# ambiguous: lastchange could be sysUptime before or after wrap
if ($dev_uptime > 30000 and $lc < 30000) {
# uptime wrap more than 5min ago but lastchange within 5min
# assume lastchange was directly after boot -> no action
}
else {
# uptime wrap less than 5min ago or lastchange > 5min ago
# to be on safe side, assume lastchange after counter wrap
debug sprintf
' [%s] interfaces - correcting LastChange for %s, assuming sysUptime wrap',
$device->ip, $port;
$lc += $dev_uptime_wrapped * 2**32;
}
}
}
# create a DBIx::Class row for this port which can be used to test ACLs
# also include the Device IP alias if we have one for L3 interfaces
$deviceports{$port} = {
@@ -294,7 +268,6 @@ register_worker({ phase => 'early', driver => 'snmp' }, sub {
has_subinterfaces => 'false',
is_master => 'false',
slave_of => undef,
lastchange => $lc,
};
}
@@ -336,6 +309,38 @@ register_worker({ phase => 'early', driver => 'snmp' }, sub {
}
}
# #981 must do this after filtering %deviceports to avoid weird data
UPTIME: foreach my $entry (keys %$interfaces) {
my $port = $interfaces->{$entry};
next unless exists $deviceports{$port};
my $lc = $i_lastchange->{$entry} || 0;
if (not $dev_uptime_wrapped and $lc > $dev_uptime) {
debug sprintf ' [%s] interfaces - device uptime wrapped (%s) - correcting',
$device->ip, $port;
$device->uptime( $dev_uptime + 2**32 );
$dev_uptime_wrapped = 1;
}
if ($device->is_column_changed('uptime') and $lc and $lc < $dev_uptime) {
# ambiguous: lastchange could be sysUptime before or after wrap
if ($dev_uptime > 30000 and $lc < 30000) {
# uptime wrap more than 5min ago but lastchange within 5min
# assume lastchange was directly after boot -> no action
}
else {
# uptime wrap less than 5min ago or lastchange > 5min ago
# to be on safe side, assume lastchange after counter wrap
debug sprintf
' [%s] interfaces - correcting LastChange for %s, assuming sysUptime wrap',
$device->ip, $port;
$lc += $dev_uptime_wrapped * 2**32;
}
}
$deviceports{$port}->{lastchange} = $lc;
}
# must do this after building %deviceports so that we can set is_master
foreach my $sidx (keys %$agg_ports) {
my $slave = $interfaces->{$sidx} or next;