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2970. [security] Adding a NO DATA negative cache entry failed to clear

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any matching RRSIG records.  A subsequent lookup of
                        of NO DATA cache entry could trigger a INSIST when the
                        unexpected RRSIG was also returned with the NO DATA
                        cache entry.  [RT #22288]
This commit is contained in:
Mark Andrews
2010-11-16 06:46:44 +00:00
parent 70eef362e6
commit d48730a446
11 changed files with 245 additions and 14 deletions
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27
bin/tests/system/resolver/tests.sh
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@@ -15,7 +15,7 @@
# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
# $Id: tests.sh,v 1.16 2010/09/15 23:22:02 marka Exp $
# $Id: tests.sh,v 1.17 2010/11/16 06:46:44 marka Exp $
SYSTEMTESTTOP=..
. $SYSTEMTESTTOP/conf.sh
@@ -156,5 +156,30 @@ grep "status: NXDOMAIN" dig.ns5.out.${n} > /dev/null || ret=1
if [ $ret != 0 ]; then echo "I:failed"; fi
status=`expr $status + $ret`
n=`expr $n + 1`
echo "I:check that replacement of additional data by a negative cache no data entry clears the additional RRSIGs ($n)"
ret=0
$DIG +tcp mx example.net @10.53.0.7 -p 5300 > dig.ns7.out.${n} || ret=1
grep "status: NOERROR" dig.ns7.out.${n} > /dev/null || ret=1
if [ $ret = 1 ]; then echo "I:mx priming failed"; fi
$NSUPDATE << EOF
server 10.53.0.6 5300
zone example.net
update delete mail.example.net A
update add mail.example.net 0 AAAA ::1
send
EOF
$DIG +tcp a mail.example.net @10.53.0.7 -p 5300 > dig.ns7.out.${n} || ret=2
grep "status: NOERROR" dig.ns7.out.${n} > /dev/null || ret=2
grep "ANSWER: 0" dig.ns7.out.${n} > /dev/null || ret=2
if [ $ret = 2 ]; then echo "I:ncache priming failed"; fi
$DIG +tcp mx example.net @10.53.0.7 -p 5300 > dig.ns7.out.${n} || ret=3
grep "status: NOERROR" dig.ns7.out.${n} > /dev/null || ret=3
$DIG +tcp rrsig mail.example.net +norec @10.53.0.7 -p 5300 > dig.ns7.out.${n} || ret=4
grep "status: NOERROR" dig.ns7.out.${n} > /dev/null || ret=4
grep "ANSWER: 0" dig.ns7.out.${n} > /dev/null || ret=4
if [ $ret != 0 ]; then echo "I:failed"; ret=1; fi
status=`expr $status + $ret`
echo "I:exit status: $status"
exit $status