69 lines
2.6 KiB
Python
69 lines
2.6 KiB
Python
# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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#
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# SPDX-License-Identifier: MPL-2.0
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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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import isctest
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import pytest
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pytestmark = pytest.mark.extra_artifacts(
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["ns2/named.stats"],
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)
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def test_dig_tcp_keepalive_handling(named_port, servers):
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def get_keepalive_options_received():
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servers["ns2"].rndc("stats", log=False)
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options_received = 0
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with open("ns2/named.stats", "r", encoding="utf-8") as ns2_stats_file:
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for line in ns2_stats_file:
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if "EDNS TCP keepalive option received" in line:
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options_received = line.split()[0]
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return int(options_received)
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dig = isctest.run.Dig(f"-p {str(named_port)}")
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isctest.log.info("check that dig handles TCP keepalive in query")
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assert "; TCP-KEEPALIVE" in dig("+qr +keepalive foo.example. @10.53.0.2")
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isctest.log.info("check that dig added TCP keepalive was received")
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assert get_keepalive_options_received() == 1
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isctest.log.info("check that TCP keepalive is added for TCP responses")
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assert "; TCP-KEEPALIVE" in dig("+tcp +keepalive foo.example. @10.53.0.2")
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isctest.log.info("check that TCP keepalive requires TCP")
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assert "; TCP-KEEPALIVE" not in dig("+keepalive foo.example. @10.53.0.2")
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isctest.log.info("check the default keepalive value")
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assert "; TCP-KEEPALIVE: 30.0 secs" in dig(
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"+tcp +keepalive foo.example. @10.53.0.3"
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)
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isctest.log.info("check a keepalive configured value")
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assert "; TCP-KEEPALIVE: 15.0 secs" in dig(
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"+tcp +keepalive foo.example. @10.53.0.2"
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)
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isctest.log.info("check a re-configured keepalive value")
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response = servers["ns2"].rndc("tcp-timeouts 300 300 300 200", log=False)
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assert "tcp-initial-timeout=300" in response
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assert "tcp-idle-timeout=300" in response
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assert "tcp-keepalive-timeout=300" in response
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assert "tcp-advertised-timeout=200" in response
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assert "; TCP-KEEPALIVE: 20.0 secs" in dig(
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"+tcp +keepalive foo.example. @10.53.0.2"
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)
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isctest.log.info("check server config entry")
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base_options_received = get_keepalive_options_received()
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dig("bar.example. @10.53.0.3")
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next_options_received = get_keepalive_options_received()
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assert base_options_received < next_options_received
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