| #!/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 ['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() |