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[master] EDNS padding and keepalive support

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4549.	[func]		Added support for the EDNS TCP Keepalive option
			(RFC 7828). [RT #42126]

4548.	[func]		Added support for the EDNS Padding option (RFC 7830).
			[RT #42094]
This commit is contained in:
Evan Hunt
2017-01-04 09:16:30 -08:00
parent e0d4e0ee8e
commit 5804332588
50 changed files with 3169 additions and 72 deletions
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111
bin/tests/system/padding/tests.sh Normal file
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#!/bin/sh
#
# Copyright (C) 2016 Internet Systems Consortium, Inc. ("ISC")
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
SYSTEMTESTTOP=..
. $SYSTEMTESTTOP/conf.sh
n=0
status=0
getcookie() {
awk '$2 == "COOKIE:" {
print $3;
}' < $1
}
echo "I:checking that dig handles padding ($n)"
ret=0
n=`expr $n + 1`
$DIG +qr +padding=128 foo.example @10.53.0.2 -p 5300 > dig.out.test$n
grep "; PAD" dig.out.test$n > /dev/null || ret=1
grep "; QUERY SIZE: 128" dig.out.test$n > /dev/null || ret=1
if [ $ret != 0 ]; then echo "I:failed"; fi
status=`expr $status + $ret`
echo "I:checking that dig added padding ($n)"
ret=0
n=`expr $n + 1`
$RNDC -c ../common/rndc.conf -s 10.53.0.2 -p 9953 stats
grep "EDNS padding option received" ns2/named.stats > /dev/null || ret=1
if [ $ret != 0 ]; then echo "I:failed"; fi
status=`expr $status + $ret`
echo "I:checking that padding is added for TCP responses ($n)"
ret=0
n=`expr $n + 1`
$DIG +vc +padding=128 foo.example @10.53.0.2 -p 5300 > dig.out.test$n
grep "; PAD" dig.out.test$n > /dev/null || ret=1
grep "rcvd: 128" dig.out.test$n > /dev/null || ret=1
if [ $ret != 0 ]; then echo "I:failed"; fi
status=`expr $status + $ret`
echo "I:checking that padding is added to valid cookie responses ($n)"
ret=0
n=`expr $n + 1`
$DIG +cookie foo.example @10.53.0.2 -p 5300 > dig.out.testc
cookie=`getcookie dig.out.testc`
$DIG +cookie=$cookie +padding=128 foo.example @10.53.0.2 -p 5300 > dig.out.test$n
grep "; PAD" dig.out.test$n > /dev/null || ret=1
grep "rcvd: 128" dig.out.test$n > /dev/null || ret=1
if [ $ret != 0 ]; then echo "I:failed"; fi
status=`expr $status + $ret`
echo "I:checking that padding must be requested (TCP) ($n)"
ret=0
n=`expr $n + 1`
$DIG +vc foo.example @10.53.0.2 -p 5300 > dig.out.test$n
grep "; PAD" dig.out.test$n > /dev/null && ret=1
if [ $ret != 0 ]; then echo "I:failed"; fi
status=`expr $status + $ret`
echo "I:checking that padding must be requested (valid cookie) ($n)"
ret=0
n=`expr $n + 1`
$DIG +cookie=$cookie foo.example @10.53.0.2 -p 5300 > dig.out.test$n
grep "; PAD" dig.out.test$n > /dev/null && ret=1
if [ $ret != 0 ]; then echo "I:failed"; fi
status=`expr $status + $ret`
echo "I:checking that padding can be filtered out ($n)"
ret=0
n=`expr $n + 1`
$DIG +vc +padding=128 -b 10.53.0.8 foo.example @10.53.0.2 -p 5300 > dig.out.test$n
grep "; PAD" dig.out.test$n > /dev/null && ret=1
if [ $ret != 0 ]; then echo "I:failed"; fi
status=`expr $status + $ret`
echo "I:checking that a TCP and padding server config enables padding ($n)"
ret=0
n=`expr $n + 1`
$RNDC -c ../common/rndc.conf -s 10.53.0.2 -p 9953 stats
opad=`grep "EDNS padding option received" ns2/named.stats | \
tail -1 | awk '{ print $1}'`
$DIG foo.example @10.53.0.3 -p 5300 > dig.out.test$n
$RNDC -c ../common/rndc.conf -s 10.53.0.2 -p 9953 stats
npad=`grep "EDNS padding option received" ns2/named.stats | \
tail -1 | awk '{ print $1}'`
if [ "$opad" -eq "$npad" ]; then ret=1; fi
if [ $ret != 0 ]; then echo "I:failed"; fi
status=`expr $status + $ret`
echo "I:checking that a padding server config should enforce TCP ($n)"
ret=0
n=`expr $n + 1`
$RNDC -c ../common/rndc.conf -s 10.53.0.2 -p 9953 stats
opad=`grep "EDNS padding option received" ns2/named.stats | \
tail -1 | awk '{ print $1}'`
$DIG foo.example @10.53.0.4 -p 5300 > dig.out.test$n
$RNDC -c ../common/rndc.conf -s 10.53.0.2 -p 9953 stats
npad=`grep "EDNS padding option received" ns2/named.stats | \
tail -1 | awk '{ print $1}'`
if [ "$opad" -ne "$npad" ]; then ret=1; fi
if [ $ret != 0 ]; then echo "I:failed"; fi
status=`expr $status + $ret`
echo "I:exit status: $status"
[ $status -eq 0 ] || exit 1