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85 lines
2.7 KiB
85 lines
2.7 KiB
#!/usr/bin/python
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#
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# Copyright 2016 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from errno import * # pylint: disable=wildcard-import
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from socket import * # pylint: disable=wildcard-import
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import threading
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import time
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import unittest
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import csocket
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import net_test
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class LeakTest(net_test.NetworkTest):
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def testRecvfromLeak(self):
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s = socket(AF_INET6, SOCK_DGRAM, 0)
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s.bind(("::1", 0))
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# Call shutdown on another thread while a recvfrom is in progress.
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csocket.SetSocketTimeout(s, 2000)
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def ShutdownSocket():
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time.sleep(0.5)
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self.assertRaisesErrno(ENOTCONN, s.shutdown, SHUT_RDWR)
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t = threading.Thread(target=ShutdownSocket)
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t.start()
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# This could have been written with just "s.recvfrom", but because we're
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# testing for a bug where the kernel returns garbage, it's probably safer
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# to call the syscall directly.
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data, addr = csocket.Recvfrom(s, 4096)
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self.assertEqual("", data)
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self.assertEqual(None, addr)
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class ForceSocketBufferOptionTest(net_test.NetworkTest):
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SO_SNDBUFFORCE = 32
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SO_RCVBUFFORCE = 33
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def CheckForceSocketBufferOption(self, option, force_option):
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s = socket(AF_INET6, SOCK_DGRAM, 0)
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# Find the minimum buffer value.
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s.setsockopt(SOL_SOCKET, option, 0)
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minbuf = s.getsockopt(SOL_SOCKET, option)
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# Check that the force option works to set reasonable values.
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val = 4097
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self.assertGreater(2 * val, minbuf)
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s.setsockopt(SOL_SOCKET, force_option, val)
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self.assertEqual(2 * val, s.getsockopt(SOL_SOCKET, option))
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# Check that the force option sets at least the minimum value instead
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# of a negative value on integer overflow. Because the kernel multiplies
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# passed-in values by 2, pick a value that becomes a small negative number
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# if treated as unsigned.
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bogusval = 2 ** 31 - val
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s.setsockopt(SOL_SOCKET, force_option, bogusval)
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self.assertLessEqual(minbuf, s.getsockopt(SOL_SOCKET, option))
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def testRcvBufForce(self):
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self.CheckForceSocketBufferOption(SO_RCVBUF, self.SO_RCVBUFFORCE)
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def testSndBufForce(self):
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self.CheckForceSocketBufferOption(SO_SNDBUF, self.SO_SNDBUFFORCE)
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if __name__ == "__main__":
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unittest.main()
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