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Prevent TCP failures from affecting EDNS stats

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EDNS mechanisms only apply to DNS over UDP.  Thus, errors encountered
while sending DNS queries over TCP must not influence EDNS timeout
statistics.
This commit is contained in:
Michał Kępień
2019-10-31 08:48:35 +01:00
parent 7346e6d3b5
commit fce3c93ea2
2 changed files with 32 additions and 5 deletions
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12
bin/tests/system/legacy/tests.sh
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@@ -241,6 +241,18 @@ fi
if [ $ret != 0 ]; then echo_i "failed"; fi
status=`expr $status + $ret`
n=`expr $n + 1`
echo_i "checking that TCP failures do not influence EDNS statistics in the ADB ($n)"
ret=0
rndc_dumpdb ns1 -adb || ret=1
timeouts512=`sed -n "s|.*10\.53\.0\.7.*\[edns \([0-9/][0-9/]*\).*|\1|p" ns1/named_dump.db.test$n | awk -F/ '{print $NF}'`
if [ $timeouts512 -ne 0 ]; then
echo_i "512-byte EDNS timeouts according to ADB: $timeouts512, expected: 0"
ret=1
fi
if [ $ret != 0 ]; then echo_i "failed"; fi
status=`expr $status + $ret`
$PERL $SYSTEMTESTTOP/stop.pl --use-rndc --port ${CONTROLPORT} legacy ns1
copy_setports ns1/named2.conf.in ns1/named.conf
$PERL $SYSTEMTESTTOP/start.pl --noclean --restart --port ${PORT} legacy ns1