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bind9/bin/tests/system/dispatch/tests_connreset.py

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Add TCP connection reset test The TCP connection reset test starts mock UDP and TCP server which always returns empty DNS answer with TC bit set over UDP and resets the TCP connection after five seconds. When tested without the fix, the DNS query to 10.53.0.2 times out and the ns2 server hangs at shutdown.
2021-12-01 06:22:59 -05:00
#!/usr/bin/python3
Update the copyright information in all files in the repository This commit converts the license handling to adhere to the REUSE specification. It specifically: 1. Adds used licnses to LICENSES/ directory 2. Add "isc" template for adding the copyright boilerplate 3. Changes all source files to include copyright and SPDX license header, this includes all the C sources, documentation, zone files, configuration files. There are notes in the doc/dev/copyrights file on how to add correct headers to the new files. 4. Handle the rest that can't be modified via .reuse/dep5 file. The binary (or otherwise unmodifiable) files could have license places next to them in <foo>.license file, but this would lead to cluttered repository and most of the files handled in the .reuse/dep5 file are system test files.
2021-06-03 02:37:05 -04:00
Add TCP connection reset test The TCP connection reset test starts mock UDP and TCP server which always returns empty DNS answer with TC bit set over UDP and resets the TCP connection after five seconds. When tested without the fix, the DNS query to 10.53.0.2 times out and the ns2 server hangs at shutdown.
2021-12-01 06:22:59 -05:00
# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
#
# SPDX-License-Identifier: MPL-2.0
Update the copyright information in all files in the repository This commit converts the license handling to adhere to the REUSE specification. It specifically: 1. Adds used licnses to LICENSES/ directory 2. Add "isc" template for adding the copyright boilerplate 3. Changes all source files to include copyright and SPDX license header, this includes all the C sources, documentation, zone files, configuration files. There are notes in the doc/dev/copyrights file on how to add correct headers to the new files. 4. Handle the rest that can't be modified via .reuse/dep5 file. The binary (or otherwise unmodifiable) files could have license places next to them in <foo>.license file, but this would lead to cluttered repository and most of the files handled in the .reuse/dep5 file are system test files.
2021-06-03 02:37:05 -04:00
#
Add TCP connection reset test The TCP connection reset test starts mock UDP and TCP server which always returns empty DNS answer with TC bit set over UDP and resets the TCP connection after five seconds. When tested without the fix, the DNS query to 10.53.0.2 times out and the ns2 server hangs at shutdown.
2021-12-01 06:22:59 -05:00
# 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 https://mozilla.org/MPL/2.0/.
#
# See the COPYRIGHT file distributed with this work for additional
# information regarding copyright ownership.
import pytest
pytest.importorskip("dns")
import dns.message
import dns.query
import dns.rcode
Reuse common port-related test fixtures Most Python-based system tests need to know which ports were assigned to a given test by bin/tests/system/get_ports.sh. This is currently handled by inspecting the values of various environment variables (set by bin/tests/system/run.sh) and passing the port numbers to Python scripts via pytest fixtures. However, this glue code has so far been copy-pasted into each system test using it, rather than reused. Since pytest also looks for conftest.py files in parent directories, move commonly used fixtures to bin/tests/system/conftest.py. Set the scope of all the moved fixtures to "session" as their return values are only based on environment variables, so there is no point in recreating them for every test requesting them. Adjust test code accordingly.
2022-03-14 03:59:32 -04:00
def test_connreset(named_port):
Auto-format Python files with black This patch is strictly the result of: $ black $(git ls-files '*.py') There have been no manual changes.
2022-06-07 10:27:23 -04:00
msg = dns.message.make_query(
"sub.example.", "A", want_dnssec=True, use_edns=0, payload=1232
)
Reuse common port-related test fixtures Most Python-based system tests need to know which ports were assigned to a given test by bin/tests/system/get_ports.sh. This is currently handled by inspecting the values of various environment variables (set by bin/tests/system/run.sh) and passing the port numbers to Python scripts via pytest fixtures. However, this glue code has so far been copy-pasted into each system test using it, rather than reused. Since pytest also looks for conftest.py files in parent directories, move commonly used fixtures to bin/tests/system/conftest.py. Set the scope of all the moved fixtures to "session" as their return values are only based on environment variables, so there is no point in recreating them for every test requesting them. Adjust test code accordingly.
2022-03-14 03:59:32 -04:00
ans = dns.query.udp(msg, "10.53.0.2", timeout=10, port=named_port)
Add TCP connection reset test The TCP connection reset test starts mock UDP and TCP server which always returns empty DNS answer with TC bit set over UDP and resets the TCP connection after five seconds. When tested without the fix, the DNS query to 10.53.0.2 times out and the ns2 server hangs at shutdown.
2021-12-01 06:22:59 -05:00
assert ans.rcode() == dns.rcode.SERVFAIL
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