mirror of
https://github.com/isc-projects/bind9.git
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94a32eaf29
The system tests were missing a test that would test tcp-initial-timeout
and tcp-idle-timeout.
This commit adds new "timeouts" system test that adds:
* Test that waits longer than tcp-initial-timeout and then checks
whether the socket was closed
* Test that sends and receives DNS message then waits longer than
tcp-initial-timeout but shorter time than tcp-idle-timeout than
sends DNS message again than waits longer than tcp-idle-timeout
and checks whether the socket was closed
* Similar test, but bursting 25 DNS messages than waiting longer than
tcp-initial-timeout and shorter than tcp-idle-timeout than do second
25 DNS message burst
* Check whether transfer longer than tcp-initial-timeout succeeds
161 lines
4.9 KiB
Python
161 lines
4.9 KiB
Python
#!/usr/bin/python3
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############################################################################
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# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, you can obtain one at https://mozilla.org/MPL/2.0/.
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#
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# See the COPYRIGHT file distributed with this work for additional
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# information regarding copyright ownership.
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############################################################################
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# pylint: disable=unused-variable
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import socket
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import time
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import pytest
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TIMEOUT = 10
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def create_msg(qname, qtype):
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import dns.message
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msg = dns.message.make_query(qname, qtype, want_dnssec=True,
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use_edns=0, payload=4096)
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return msg
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def timeout():
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return time.time() + TIMEOUT
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@pytest.mark.dnspython
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@pytest.mark.dnspython2
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def test_initial_timeout(port):
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#
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# The initial timeout is 2.5 seconds, so this should timeout
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#
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import dns.query
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with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
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sock.connect(("10.53.0.1", port))
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time.sleep(3)
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msg = create_msg("example.", "A")
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with pytest.raises(EOFError):
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try:
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(sbytes, stime) = dns.query.send_tcp(sock, msg, timeout())
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(response, rtime) = dns.query.receive_tcp(sock, timeout())
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except ConnectionResetError as e:
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raise EOFError from e
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@pytest.mark.dnspython
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@pytest.mark.dnspython2
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def test_idle_timeout(port):
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#
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# The idle timeout is 5 second, so sending the second message must fail
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#
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import dns.rcode
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msg = create_msg("example.", "A")
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with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
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sock.connect(("10.53.0.1", port))
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time.sleep(1)
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(sbytes, stime) = dns.query.send_tcp(sock, msg, timeout())
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(response, rtime) = dns.query.receive_tcp(sock, timeout())
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time.sleep(3)
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(sbytes, stime) = dns.query.send_tcp(sock, msg, timeout())
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(response, rtime) = dns.query.receive_tcp(sock, timeout())
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time.sleep(6)
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with pytest.raises(EOFError):
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try:
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(sbytes, stime) = dns.query.send_tcp(sock, msg, timeout())
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(response, rtime) = dns.query.receive_tcp(sock, timeout())
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except ConnectionResetError as e:
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raise EOFError from e
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@pytest.mark.dnspython
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@pytest.mark.dnspython2
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def test_pipelining_timeout(port):
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#
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# The pipelining should only timeout after the last message is received
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#
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import dns.query
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msg = create_msg("example.", "A")
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with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
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sock.connect(("10.53.0.1", port))
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time.sleep(1)
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# Send and receive 25 DNS queries
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for n in range(25):
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(sbytes, stime) = dns.query.send_tcp(sock, msg, timeout())
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for n in range(25):
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(response, rtime) = dns.query.receive_tcp(sock, timeout())
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time.sleep(3)
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# Send and receive 25 DNS queries
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for n in range(25):
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(sbytes, stime) = dns.query.send_tcp(sock, msg, timeout())
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for n in range(25):
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(response, rtime) = dns.query.receive_tcp(sock, timeout())
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time.sleep(6)
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with pytest.raises(EOFError):
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try:
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(sbytes, stime) = dns.query.send_tcp(sock, msg, timeout())
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(response, rtime) = dns.query.receive_tcp(sock, timeout())
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except ConnectionResetError as e:
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raise EOFError from e
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@pytest.mark.dnspython
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@pytest.mark.dnspython2
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def test_long_axfr(port):
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#
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# The timers should not fire during AXFR, thus the connection should not
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# close abruptly
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#
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import dns.query
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import dns.rdataclass
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import dns.rdatatype
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with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
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sock.connect(("10.53.0.1", port))
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name = dns.name.from_text("example.")
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msg = create_msg("example.", "AXFR")
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(sbytes, stime) = dns.query.send_tcp(sock, msg, timeout())
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# Receive the initial DNS message with SOA
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(response, rtime) = dns.query.receive_tcp(sock, timeout(),
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one_rr_per_rrset=True)
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soa = response.get_rrset(dns.message.ANSWER, name,
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dns.rdataclass.IN, dns.rdatatype.SOA)
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assert soa is not None
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# Pull DNS message from wire until the second SOA is received
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while True:
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(response, rtime) = dns.query.receive_tcp(sock, timeout(),
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one_rr_per_rrset=True)
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soa = response.get_rrset(dns.message.ANSWER, name,
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dns.rdataclass.IN, dns.rdatatype.SOA)
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if soa is not None:
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break
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assert soa is not None
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