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tests/gnrc_sock_dns: add failure tests

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Martine Lenders 2019-01-29 17:04:05 +01:00 committed by Martine Lenders
parent c1ea34eed0
commit 3bfadedcdf
1 changed files with 134 additions and 0 deletions
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134
tests/gnrc_sock_dns/tests/01-run.py
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@ -6,6 +6,7 @@
# General Public License v2.1. See the file LICENSE in the top level
# directory for more details.
import base64
import os
import re
import socket
@ -148,6 +149,126 @@ def test_success(child):
assert(successful_dns_request(child, TEST_NAME, TEST_AAAA_DATA))
def test_timeout(child):
# listen but send no reply
server.listen()
assert(not successful_dns_request(child, TEST_NAME, TEST_AAAA_DATA))
def test_too_short_response(child):
server.listen(Raw(b"\x00\x00\x81\x00"))
assert(not successful_dns_request(child, TEST_NAME))
def test_qdcount_too_large1(child):
# as reported in https://github.com/RIOT-OS/RIOT/issues/10739
server.listen(base64.b64decode("AACEAwkmAAAAAAAAKioqKioqKioqKioqKioqKioqKio="))
assert(not successful_dns_request(child, TEST_NAME))
def test_qdcount_too_large2(child):
server.listen(DNS(qr=1, qdcount=40961, ancount=TEST_ANCOUNT,
qd=(DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_AAAA) /
DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_A)),
an=(DNSRR(rrname=TEST_NAME, type=DNS_RR_TYPE_AAAA,
rdlen=DNS_RR_TYPE_AAAA_DLEN,
rdata=TEST_AAAA_DATA) /
DNSRR(rrname=TEST_NAME, type=DNS_RR_TYPE_A,
rdlen=DNS_RR_TYPE_A_DLEN, rdata=TEST_A_DATA))))
assert(not successful_dns_request(child, TEST_NAME))
def test_ancount_too_large1(child):
server.listen(DNS(qr=1, qdcount=TEST_QDCOUNT, ancount=2714,
qd=(DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_AAAA) /
DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_A)),
an=(DNSRR(rrname=TEST_NAME, type=DNS_RR_TYPE_AAAA,
rdlen=DNS_RR_TYPE_AAAA_DLEN,
rdata=TEST_AAAA_DATA) /
DNSRR(rrname=TEST_NAME, type=DNS_RR_TYPE_A,
rdlen=DNS_RR_TYPE_A_DLEN, rdata=TEST_A_DATA))))
assert(not successful_dns_request(child, TEST_NAME, TEST_AAAA_DATA))
def test_ancount_too_large2(child):
server.listen(DNS(qr=1, qdcount=TEST_QDCOUNT, ancount=19888,
qd=(DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_AAAA) /
DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_A)),
an="\0"))
assert(not successful_dns_request(child, TEST_NAME))
def test_bad_compressed_message_query(child):
server.listen(DNS(qr=1, qdcount=1, ancount=1,
qd=DNS_MSG_COMP_MASK))
assert(not successful_dns_request(child, TEST_NAME))
def test_bad_compressed_message_answer(child):
server.listen(DNS(qr=1, qdcount=TEST_QDCOUNT, ancount=TEST_ANCOUNT,
qd=(DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_AAAA) /
DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_A)),
an=DNS_MSG_COMP_MASK))
assert(not successful_dns_request(child, TEST_NAME))
def test_malformed_hostname_query(child):
server.listen(DNS(qr=1, qdcount=TEST_QDCOUNT, ancount=0,
qd=(DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_AAAA) /
# need to use byte string here to induce wrong label
# lengths
b"\xafexample\x03org\x00\x00\x1c\x00\x01")))
assert(not successful_dns_request(child, TEST_NAME))
def test_malformed_hostname_answer(child):
server.listen(DNS(qr=1, qdcount=TEST_QDCOUNT, ancount=TEST_ANCOUNT,
qd=(DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_AAAA) /
DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_A)),
# need to use byte string here to induce wrong label
# lengths
an=(b"\xaftest\x00\x00\x1c\x00\x01\x00\x00\x00\x00\x00\x10"
b"\x20\x01\x0d\xb8\x00\x00\x00\x00\x00\x00\x00\x00\x00"
b"\x00\x00\x01" /
DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_A))))
assert(not successful_dns_request(child, TEST_NAME))
def test_addrlen_too_large(child):
server.listen(DNS(qr=1, qdcount=TEST_QDCOUNT, ancount=TEST_ANCOUNT,
qd=(DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_AAAA) /
DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_A)),
an=(DNSRR(rrname=TEST_NAME, type=DNS_RR_TYPE_AAAA,
rdlen=18549, rdata=TEST_AAAA_DATA) /
DNSRR(rrname=TEST_NAME, type=DNS_RR_TYPE_A,
rdlen=DNS_RR_TYPE_A_DLEN, rdata=TEST_A_DATA))))
assert(not successful_dns_request(child, TEST_NAME, TEST_AAAA_DATA))
def test_addrlen_wrong_ip6(child):
server.listen(DNS(qr=1, qdcount=TEST_QDCOUNT, ancount=TEST_ANCOUNT,
qd=(DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_AAAA) /
DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_A)),
an=(DNSRR(rrname=TEST_NAME, type=DNS_RR_TYPE_AAAA,
rdlen=DNS_RR_TYPE_AAAA_DLEN + 1,
rdata=(TEST_AAAA_DATA)) /
DNSRR(rrname=TEST_NAME, type=DNS_RR_TYPE_A,
rdlen=DNS_RR_TYPE_A_DLEN, rdata=TEST_A_DATA))))
assert(not successful_dns_request(child, TEST_NAME, TEST_AAAA_DATA))
def test_addrlen_wrong_ip4(child):
server.listen(DNS(qr=1, qdcount=TEST_QDCOUNT, ancount=TEST_ANCOUNT,
qd=(DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_AAAA) /
DNSQR(qname=TEST_NAME, qtype=DNS_RR_TYPE_A)),
an=(DNSRR(rrname=TEST_NAME, type=DNS_RR_TYPE_A,
rdlen=DNS_RR_TYPE_A - 1, rdata=TEST_A_DATA) /
DNSRR(rrname=TEST_NAME, type=DNS_RR_TYPE_AAAA,
rdlen=DNS_RR_TYPE_AAAA_DLEN,
rdata=TEST_AAAA_DATA))))
assert(not successful_dns_request(child, TEST_NAME, TEST_AAAA_DATA))
def testfunc(child):
global server
tap = get_bridge(os.environ["TAP"])
@ -172,6 +293,19 @@ def testfunc(child):
raise e
run(test_success)
run(test_timeout)
run(test_too_short_response)
run(test_qdcount_too_large1)
run(test_qdcount_too_large2)
run(test_ancount_too_large1)
run(test_ancount_too_large2)
run(test_bad_compressed_message_query)
run(test_bad_compressed_message_answer)
run(test_malformed_hostname_query)
run(test_malformed_hostname_answer)
run(test_addrlen_too_large)
run(test_addrlen_wrong_ip6)
run(test_addrlen_wrong_ip4)
print("SUCCESS")
finally:
if server is not None: