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#!/usr/bin/python
#
# Copyright 2021 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import unittest
import net_test
class SysctlsTest(net_test.NetworkTest):
def check(self, f):
algs = open(f).readline().strip().split(' ')
bad_algs = [a for a in algs if a not in ['bbr', 'bbr2', 'cubic', 'reno']]
msg = ("Obsolete TCP congestion control algorithm found. These "
"algorithms will decrease real-world networking performance for "
"users and must be disabled. Found: %s" % bad_algs)
self.assertEqual(bad_algs, [], msg)
def testAllowedCongestionControl(self):
self.check('/proc/sys/net/ipv4/tcp_allowed_congestion_control')
def testAvailableCongestionControl(self):
self.check('/proc/sys/net/ipv4/tcp_available_congestion_control')
def testCongestionControl(self):
self.check('/proc/sys/net/ipv4/tcp_congestion_control')
if __name__ == "__main__":
unittest.main()
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