| #!/usr/bin/env python3 |
| |
| import unittest |
| from test import support |
| |
| import errno |
| import io |
| import socket |
| import select |
| import tempfile |
| import _testcapi |
| import time |
| import traceback |
| import queue |
| import sys |
| import os |
| import array |
| import platform |
| import contextlib |
| from weakref import proxy |
| import signal |
| import math |
| import pickle |
| import struct |
| try: |
| import fcntl |
| except ImportError: |
| fcntl = False |
| try: |
| import multiprocessing |
| except ImportError: |
| multiprocessing = False |
| |
| HOST = support.HOST |
| MSG = 'Michael Gilfix was here\u1234\r\n'.encode('utf-8') ## test unicode string and carriage return |
| |
| try: |
| import _thread as thread |
| import threading |
| except ImportError: |
| thread = None |
| threading = None |
| |
| def _have_socket_can(): |
| """Check whether CAN sockets are supported on this host.""" |
| try: |
| s = socket.socket(socket.PF_CAN, socket.SOCK_RAW, socket.CAN_RAW) |
| except (AttributeError, OSError): |
| return False |
| else: |
| s.close() |
| return True |
| |
| def _have_socket_rds(): |
| """Check whether RDS sockets are supported on this host.""" |
| try: |
| s = socket.socket(socket.PF_RDS, socket.SOCK_SEQPACKET, 0) |
| except (AttributeError, OSError): |
| return False |
| else: |
| s.close() |
| return True |
| |
| HAVE_SOCKET_CAN = _have_socket_can() |
| |
| HAVE_SOCKET_RDS = _have_socket_rds() |
| |
| # Size in bytes of the int type |
| SIZEOF_INT = array.array("i").itemsize |
| |
| class SocketTCPTest(unittest.TestCase): |
| |
| def setUp(self): |
| self.serv = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| self.port = support.bind_port(self.serv) |
| self.serv.listen(1) |
| |
| def tearDown(self): |
| self.serv.close() |
| self.serv = None |
| |
| class SocketUDPTest(unittest.TestCase): |
| |
| def setUp(self): |
| self.serv = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) |
| self.port = support.bind_port(self.serv) |
| |
| def tearDown(self): |
| self.serv.close() |
| self.serv = None |
| |
| class ThreadSafeCleanupTestCase(unittest.TestCase): |
| """Subclass of unittest.TestCase with thread-safe cleanup methods. |
| |
| This subclass protects the addCleanup() and doCleanups() methods |
| with a recursive lock. |
| """ |
| |
| if threading: |
| def __init__(self, *args, **kwargs): |
| super().__init__(*args, **kwargs) |
| self._cleanup_lock = threading.RLock() |
| |
| def addCleanup(self, *args, **kwargs): |
| with self._cleanup_lock: |
| return super().addCleanup(*args, **kwargs) |
| |
| def doCleanups(self, *args, **kwargs): |
| with self._cleanup_lock: |
| return super().doCleanups(*args, **kwargs) |
| |
| class SocketCANTest(unittest.TestCase): |
| |
| """To be able to run this test, a `vcan0` CAN interface can be created with |
| the following commands: |
| # modprobe vcan |
| # ip link add dev vcan0 type vcan |
| # ifconfig vcan0 up |
| """ |
| interface = 'vcan0' |
| bufsize = 128 |
| |
| """The CAN frame structure is defined in <linux/can.h>: |
| |
| struct can_frame { |
| canid_t can_id; /* 32 bit CAN_ID + EFF/RTR/ERR flags */ |
| __u8 can_dlc; /* data length code: 0 .. 8 */ |
| __u8 data[8] __attribute__((aligned(8))); |
| }; |
| """ |
| can_frame_fmt = "=IB3x8s" |
| can_frame_size = struct.calcsize(can_frame_fmt) |
| |
| """The Broadcast Management Command frame structure is defined |
| in <linux/can/bcm.h>: |
| |
| struct bcm_msg_head { |
| __u32 opcode; |
| __u32 flags; |
| __u32 count; |
| struct timeval ival1, ival2; |
| canid_t can_id; |
| __u32 nframes; |
| struct can_frame frames[0]; |
| } |
| |
| `bcm_msg_head` must be 8 bytes aligned because of the `frames` member (see |
| `struct can_frame` definition). Must use native not standard types for packing. |
| """ |
| bcm_cmd_msg_fmt = "@3I4l2I" |
| bcm_cmd_msg_fmt += "x" * (struct.calcsize(bcm_cmd_msg_fmt) % 8) |
| |
| def setUp(self): |
| self.s = socket.socket(socket.PF_CAN, socket.SOCK_RAW, socket.CAN_RAW) |
| self.addCleanup(self.s.close) |
| try: |
| self.s.bind((self.interface,)) |
| except OSError: |
| self.skipTest('network interface `%s` does not exist' % |
| self.interface) |
| |
| |
| class SocketRDSTest(unittest.TestCase): |
| |
| """To be able to run this test, the `rds` kernel module must be loaded: |
| # modprobe rds |
| """ |
| bufsize = 8192 |
| |
| def setUp(self): |
| self.serv = socket.socket(socket.PF_RDS, socket.SOCK_SEQPACKET, 0) |
| self.addCleanup(self.serv.close) |
| try: |
| self.port = support.bind_port(self.serv) |
| except OSError: |
| self.skipTest('unable to bind RDS socket') |
| |
| |
| class ThreadableTest: |
| """Threadable Test class |
| |
| The ThreadableTest class makes it easy to create a threaded |
| client/server pair from an existing unit test. To create a |
| new threaded class from an existing unit test, use multiple |
| inheritance: |
| |
| class NewClass (OldClass, ThreadableTest): |
| pass |
| |
| This class defines two new fixture functions with obvious |
| purposes for overriding: |
| |
| clientSetUp () |
| clientTearDown () |
| |
| Any new test functions within the class must then define |
| tests in pairs, where the test name is preceeded with a |
| '_' to indicate the client portion of the test. Ex: |
| |
| def testFoo(self): |
| # Server portion |
| |
| def _testFoo(self): |
| # Client portion |
| |
| Any exceptions raised by the clients during their tests |
| are caught and transferred to the main thread to alert |
| the testing framework. |
| |
| Note, the server setup function cannot call any blocking |
| functions that rely on the client thread during setup, |
| unless serverExplicitReady() is called just before |
| the blocking call (such as in setting up a client/server |
| connection and performing the accept() in setUp(). |
| """ |
| |
| def __init__(self): |
| # Swap the true setup function |
| self.__setUp = self.setUp |
| self.__tearDown = self.tearDown |
| self.setUp = self._setUp |
| self.tearDown = self._tearDown |
| |
| def serverExplicitReady(self): |
| """This method allows the server to explicitly indicate that |
| it wants the client thread to proceed. This is useful if the |
| server is about to execute a blocking routine that is |
| dependent upon the client thread during its setup routine.""" |
| self.server_ready.set() |
| |
| def _setUp(self): |
| self.server_ready = threading.Event() |
| self.client_ready = threading.Event() |
| self.done = threading.Event() |
| self.queue = queue.Queue(1) |
| self.server_crashed = False |
| |
| # Do some munging to start the client test. |
| methodname = self.id() |
| i = methodname.rfind('.') |
| methodname = methodname[i+1:] |
| test_method = getattr(self, '_' + methodname) |
| self.client_thread = thread.start_new_thread( |
| self.clientRun, (test_method,)) |
| |
| try: |
| self.__setUp() |
| except: |
| self.server_crashed = True |
| raise |
| finally: |
| self.server_ready.set() |
| self.client_ready.wait() |
| |
| def _tearDown(self): |
| self.__tearDown() |
| self.done.wait() |
| |
| if self.queue.qsize(): |
| exc = self.queue.get() |
| raise exc |
| |
| def clientRun(self, test_func): |
| self.server_ready.wait() |
| self.clientSetUp() |
| self.client_ready.set() |
| if self.server_crashed: |
| self.clientTearDown() |
| return |
| if not hasattr(test_func, '__call__'): |
| raise TypeError("test_func must be a callable function") |
| try: |
| test_func() |
| except BaseException as e: |
| self.queue.put(e) |
| finally: |
| self.clientTearDown() |
| |
| def clientSetUp(self): |
| raise NotImplementedError("clientSetUp must be implemented.") |
| |
| def clientTearDown(self): |
| self.done.set() |
| thread.exit() |
| |
| class ThreadedTCPSocketTest(SocketTCPTest, ThreadableTest): |
| |
| def __init__(self, methodName='runTest'): |
| SocketTCPTest.__init__(self, methodName=methodName) |
| ThreadableTest.__init__(self) |
| |
| def clientSetUp(self): |
| self.cli = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| |
| def clientTearDown(self): |
| self.cli.close() |
| self.cli = None |
| ThreadableTest.clientTearDown(self) |
| |
| class ThreadedUDPSocketTest(SocketUDPTest, ThreadableTest): |
| |
| def __init__(self, methodName='runTest'): |
| SocketUDPTest.__init__(self, methodName=methodName) |
| ThreadableTest.__init__(self) |
| |
| def clientSetUp(self): |
| self.cli = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) |
| |
| def clientTearDown(self): |
| self.cli.close() |
| self.cli = None |
| ThreadableTest.clientTearDown(self) |
| |
| class ThreadedCANSocketTest(SocketCANTest, ThreadableTest): |
| |
| def __init__(self, methodName='runTest'): |
| SocketCANTest.__init__(self, methodName=methodName) |
| ThreadableTest.__init__(self) |
| |
| def clientSetUp(self): |
| self.cli = socket.socket(socket.PF_CAN, socket.SOCK_RAW, socket.CAN_RAW) |
| try: |
| self.cli.bind((self.interface,)) |
| except OSError: |
| # skipTest should not be called here, and will be called in the |
| # server instead |
| pass |
| |
| def clientTearDown(self): |
| self.cli.close() |
| self.cli = None |
| ThreadableTest.clientTearDown(self) |
| |
| class ThreadedRDSSocketTest(SocketRDSTest, ThreadableTest): |
| |
| def __init__(self, methodName='runTest'): |
| SocketRDSTest.__init__(self, methodName=methodName) |
| ThreadableTest.__init__(self) |
| |
| def clientSetUp(self): |
| self.cli = socket.socket(socket.PF_RDS, socket.SOCK_SEQPACKET, 0) |
| try: |
| # RDS sockets must be bound explicitly to send or receive data |
| self.cli.bind((HOST, 0)) |
| self.cli_addr = self.cli.getsockname() |
| except OSError: |
| # skipTest should not be called here, and will be called in the |
| # server instead |
| pass |
| |
| def clientTearDown(self): |
| self.cli.close() |
| self.cli = None |
| ThreadableTest.clientTearDown(self) |
| |
| class SocketConnectedTest(ThreadedTCPSocketTest): |
| """Socket tests for client-server connection. |
| |
| self.cli_conn is a client socket connected to the server. The |
| setUp() method guarantees that it is connected to the server. |
| """ |
| |
| def __init__(self, methodName='runTest'): |
| ThreadedTCPSocketTest.__init__(self, methodName=methodName) |
| |
| def setUp(self): |
| ThreadedTCPSocketTest.setUp(self) |
| # Indicate explicitly we're ready for the client thread to |
| # proceed and then perform the blocking call to accept |
| self.serverExplicitReady() |
| conn, addr = self.serv.accept() |
| self.cli_conn = conn |
| |
| def tearDown(self): |
| self.cli_conn.close() |
| self.cli_conn = None |
| ThreadedTCPSocketTest.tearDown(self) |
| |
| def clientSetUp(self): |
| ThreadedTCPSocketTest.clientSetUp(self) |
| self.cli.connect((HOST, self.port)) |
| self.serv_conn = self.cli |
| |
| def clientTearDown(self): |
| self.serv_conn.close() |
| self.serv_conn = None |
| ThreadedTCPSocketTest.clientTearDown(self) |
| |
| class SocketPairTest(unittest.TestCase, ThreadableTest): |
| |
| def __init__(self, methodName='runTest'): |
| unittest.TestCase.__init__(self, methodName=methodName) |
| ThreadableTest.__init__(self) |
| |
| def setUp(self): |
| self.serv, self.cli = socket.socketpair() |
| |
| def tearDown(self): |
| self.serv.close() |
| self.serv = None |
| |
| def clientSetUp(self): |
| pass |
| |
| def clientTearDown(self): |
| self.cli.close() |
| self.cli = None |
| ThreadableTest.clientTearDown(self) |
| |
| |
| # The following classes are used by the sendmsg()/recvmsg() tests. |
| # Combining, for instance, ConnectedStreamTestMixin and TCPTestBase |
| # gives a drop-in replacement for SocketConnectedTest, but different |
| # address families can be used, and the attributes serv_addr and |
| # cli_addr will be set to the addresses of the endpoints. |
| |
| class SocketTestBase(unittest.TestCase): |
| """A base class for socket tests. |
| |
| Subclasses must provide methods newSocket() to return a new socket |
| and bindSock(sock) to bind it to an unused address. |
| |
| Creates a socket self.serv and sets self.serv_addr to its address. |
| """ |
| |
| def setUp(self): |
| self.serv = self.newSocket() |
| self.bindServer() |
| |
| def bindServer(self): |
| """Bind server socket and set self.serv_addr to its address.""" |
| self.bindSock(self.serv) |
| self.serv_addr = self.serv.getsockname() |
| |
| def tearDown(self): |
| self.serv.close() |
| self.serv = None |
| |
| |
| class SocketListeningTestMixin(SocketTestBase): |
| """Mixin to listen on the server socket.""" |
| |
| def setUp(self): |
| super().setUp() |
| self.serv.listen(1) |
| |
| |
| class ThreadedSocketTestMixin(ThreadSafeCleanupTestCase, SocketTestBase, |
| ThreadableTest): |
| """Mixin to add client socket and allow client/server tests. |
| |
| Client socket is self.cli and its address is self.cli_addr. See |
| ThreadableTest for usage information. |
| """ |
| |
| def __init__(self, *args, **kwargs): |
| super().__init__(*args, **kwargs) |
| ThreadableTest.__init__(self) |
| |
| def clientSetUp(self): |
| self.cli = self.newClientSocket() |
| self.bindClient() |
| |
| def newClientSocket(self): |
| """Return a new socket for use as client.""" |
| return self.newSocket() |
| |
| def bindClient(self): |
| """Bind client socket and set self.cli_addr to its address.""" |
| self.bindSock(self.cli) |
| self.cli_addr = self.cli.getsockname() |
| |
| def clientTearDown(self): |
| self.cli.close() |
| self.cli = None |
| ThreadableTest.clientTearDown(self) |
| |
| |
| class ConnectedStreamTestMixin(SocketListeningTestMixin, |
| ThreadedSocketTestMixin): |
| """Mixin to allow client/server stream tests with connected client. |
| |
| Server's socket representing connection to client is self.cli_conn |
| and client's connection to server is self.serv_conn. (Based on |
| SocketConnectedTest.) |
| """ |
| |
| def setUp(self): |
| super().setUp() |
| # Indicate explicitly we're ready for the client thread to |
| # proceed and then perform the blocking call to accept |
| self.serverExplicitReady() |
| conn, addr = self.serv.accept() |
| self.cli_conn = conn |
| |
| def tearDown(self): |
| self.cli_conn.close() |
| self.cli_conn = None |
| super().tearDown() |
| |
| def clientSetUp(self): |
| super().clientSetUp() |
| self.cli.connect(self.serv_addr) |
| self.serv_conn = self.cli |
| |
| def clientTearDown(self): |
| self.serv_conn.close() |
| self.serv_conn = None |
| super().clientTearDown() |
| |
| |
| class UnixSocketTestBase(SocketTestBase): |
| """Base class for Unix-domain socket tests.""" |
| |
| # This class is used for file descriptor passing tests, so we |
| # create the sockets in a private directory so that other users |
| # can't send anything that might be problematic for a privileged |
| # user running the tests. |
| |
| def setUp(self): |
| self.dir_path = tempfile.mkdtemp() |
| self.addCleanup(os.rmdir, self.dir_path) |
| super().setUp() |
| |
| def bindSock(self, sock): |
| path = tempfile.mktemp(dir=self.dir_path) |
| sock.bind(path) |
| self.addCleanup(support.unlink, path) |
| |
| class UnixStreamBase(UnixSocketTestBase): |
| """Base class for Unix-domain SOCK_STREAM tests.""" |
| |
| def newSocket(self): |
| return socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) |
| |
| |
| class InetTestBase(SocketTestBase): |
| """Base class for IPv4 socket tests.""" |
| |
| host = HOST |
| |
| def setUp(self): |
| super().setUp() |
| self.port = self.serv_addr[1] |
| |
| def bindSock(self, sock): |
| support.bind_port(sock, host=self.host) |
| |
| class TCPTestBase(InetTestBase): |
| """Base class for TCP-over-IPv4 tests.""" |
| |
| def newSocket(self): |
| return socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| |
| class UDPTestBase(InetTestBase): |
| """Base class for UDP-over-IPv4 tests.""" |
| |
| def newSocket(self): |
| return socket.socket(socket.AF_INET, socket.SOCK_DGRAM) |
| |
| class SCTPStreamBase(InetTestBase): |
| """Base class for SCTP tests in one-to-one (SOCK_STREAM) mode.""" |
| |
| def newSocket(self): |
| return socket.socket(socket.AF_INET, socket.SOCK_STREAM, |
| socket.IPPROTO_SCTP) |
| |
| |
| class Inet6TestBase(InetTestBase): |
| """Base class for IPv6 socket tests.""" |
| |
| # Don't use "localhost" here - it may not have an IPv6 address |
| # assigned to it by default (e.g. in /etc/hosts), and if someone |
| # has assigned it an IPv4-mapped address, then it's unlikely to |
| # work with the full IPv6 API. |
| host = "::1" |
| |
| class UDP6TestBase(Inet6TestBase): |
| """Base class for UDP-over-IPv6 tests.""" |
| |
| def newSocket(self): |
| return socket.socket(socket.AF_INET6, socket.SOCK_DGRAM) |
| |
| |
| # Test-skipping decorators for use with ThreadableTest. |
| |
| def skipWithClientIf(condition, reason): |
| """Skip decorated test if condition is true, add client_skip decorator. |
| |
| If the decorated object is not a class, sets its attribute |
| "client_skip" to a decorator which will return an empty function |
| if the test is to be skipped, or the original function if it is |
| not. This can be used to avoid running the client part of a |
| skipped test when using ThreadableTest. |
| """ |
| def client_pass(*args, **kwargs): |
| pass |
| def skipdec(obj): |
| retval = unittest.skip(reason)(obj) |
| if not isinstance(obj, type): |
| retval.client_skip = lambda f: client_pass |
| return retval |
| def noskipdec(obj): |
| if not (isinstance(obj, type) or hasattr(obj, "client_skip")): |
| obj.client_skip = lambda f: f |
| return obj |
| return skipdec if condition else noskipdec |
| |
| |
| def requireAttrs(obj, *attributes): |
| """Skip decorated test if obj is missing any of the given attributes. |
| |
| Sets client_skip attribute as skipWithClientIf() does. |
| """ |
| missing = [name for name in attributes if not hasattr(obj, name)] |
| return skipWithClientIf( |
| missing, "don't have " + ", ".join(name for name in missing)) |
| |
| |
| def requireSocket(*args): |
| """Skip decorated test if a socket cannot be created with given arguments. |
| |
| When an argument is given as a string, will use the value of that |
| attribute of the socket module, or skip the test if it doesn't |
| exist. Sets client_skip attribute as skipWithClientIf() does. |
| """ |
| err = None |
| missing = [obj for obj in args if |
| isinstance(obj, str) and not hasattr(socket, obj)] |
| if missing: |
| err = "don't have " + ", ".join(name for name in missing) |
| else: |
| callargs = [getattr(socket, obj) if isinstance(obj, str) else obj |
| for obj in args] |
| try: |
| s = socket.socket(*callargs) |
| except OSError as e: |
| # XXX: check errno? |
| err = str(e) |
| else: |
| s.close() |
| return skipWithClientIf( |
| err is not None, |
| "can't create socket({0}): {1}".format( |
| ", ".join(str(o) for o in args), err)) |
| |
| |
| ####################################################################### |
| ## Begin Tests |
| |
| class GeneralModuleTests(unittest.TestCase): |
| |
| def test_repr(self): |
| s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| with s: |
| self.assertIn('fd=%i' % s.fileno(), repr(s)) |
| self.assertIn('family=%i' % socket.AF_INET, repr(s)) |
| self.assertIn('type=%i' % socket.SOCK_STREAM, repr(s)) |
| self.assertIn('proto=0', repr(s)) |
| self.assertNotIn('raddr', repr(s)) |
| s.bind(('127.0.0.1', 0)) |
| self.assertIn('laddr', repr(s)) |
| self.assertIn(str(s.getsockname()), repr(s)) |
| self.assertIn('[closed]', repr(s)) |
| self.assertNotIn('laddr', repr(s)) |
| |
| def test_weakref(self): |
| s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| p = proxy(s) |
| self.assertEqual(p.fileno(), s.fileno()) |
| s.close() |
| s = None |
| try: |
| p.fileno() |
| except ReferenceError: |
| pass |
| else: |
| self.fail('Socket proxy still exists') |
| |
| def testSocketError(self): |
| # Testing socket module exceptions |
| msg = "Error raising socket exception (%s)." |
| with self.assertRaises(OSError, msg=msg % 'OSError'): |
| raise OSError |
| with self.assertRaises(OSError, msg=msg % 'socket.herror'): |
| raise socket.herror |
| with self.assertRaises(OSError, msg=msg % 'socket.gaierror'): |
| raise socket.gaierror |
| |
| def testSendtoErrors(self): |
| # Testing that sendto doens't masks failures. See #10169. |
| s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) |
| self.addCleanup(s.close) |
| s.bind(('', 0)) |
| sockname = s.getsockname() |
| # 2 args |
| with self.assertRaises(TypeError) as cm: |
| s.sendto('\u2620', sockname) |
| self.assertEqual(str(cm.exception), |
| "'str' does not support the buffer interface") |
| with self.assertRaises(TypeError) as cm: |
| s.sendto(5j, sockname) |
| self.assertEqual(str(cm.exception), |
| "'complex' does not support the buffer interface") |
| with self.assertRaises(TypeError) as cm: |
| s.sendto(b'foo', None) |
| self.assertIn('not NoneType',str(cm.exception)) |
| # 3 args |
| with self.assertRaises(TypeError) as cm: |
| s.sendto('\u2620', 0, sockname) |
| self.assertEqual(str(cm.exception), |
| "'str' does not support the buffer interface") |
| with self.assertRaises(TypeError) as cm: |
| s.sendto(5j, 0, sockname) |
| self.assertEqual(str(cm.exception), |
| "'complex' does not support the buffer interface") |
| with self.assertRaises(TypeError) as cm: |
| s.sendto(b'foo', 0, None) |
| self.assertIn('not NoneType', str(cm.exception)) |
| with self.assertRaises(TypeError) as cm: |
| s.sendto(b'foo', 'bar', sockname) |
| self.assertIn('an integer is required', str(cm.exception)) |
| with self.assertRaises(TypeError) as cm: |
| s.sendto(b'foo', None, None) |
| self.assertIn('an integer is required', str(cm.exception)) |
| # wrong number of args |
| with self.assertRaises(TypeError) as cm: |
| s.sendto(b'foo') |
| self.assertIn('(1 given)', str(cm.exception)) |
| with self.assertRaises(TypeError) as cm: |
| s.sendto(b'foo', 0, sockname, 4) |
| self.assertIn('(4 given)', str(cm.exception)) |
| |
| def testCrucialConstants(self): |
| # Testing for mission critical constants |
| socket.AF_INET |
| socket.SOCK_STREAM |
| socket.SOCK_DGRAM |
| socket.SOCK_RAW |
| socket.SOCK_RDM |
| socket.SOCK_SEQPACKET |
| socket.SOL_SOCKET |
| socket.SO_REUSEADDR |
| |
| def testHostnameRes(self): |
| # Testing hostname resolution mechanisms |
| hostname = socket.gethostname() |
| try: |
| ip = socket.gethostbyname(hostname) |
| except OSError: |
| # Probably name lookup wasn't set up right; skip this test |
| return |
| self.assertTrue(ip.find('.') >= 0, "Error resolving host to ip.") |
| try: |
| hname, aliases, ipaddrs = socket.gethostbyaddr(ip) |
| except OSError: |
| # Probably a similar problem as above; skip this test |
| return |
| all_host_names = [hostname, hname] + aliases |
| fqhn = socket.getfqdn(ip) |
| if not fqhn in all_host_names: |
| self.fail("Error testing host resolution mechanisms. (fqdn: %s, all: %s)" % (fqhn, repr(all_host_names))) |
| |
| @unittest.skipUnless(hasattr(socket, 'sethostname'), "test needs socket.sethostname()") |
| @unittest.skipUnless(hasattr(socket, 'gethostname'), "test needs socket.gethostname()") |
| def test_sethostname(self): |
| oldhn = socket.gethostname() |
| try: |
| socket.sethostname('new') |
| except OSError as e: |
| if e.errno == errno.EPERM: |
| self.skipTest("test should be run as root") |
| else: |
| raise |
| try: |
| # running test as root! |
| self.assertEqual(socket.gethostname(), 'new') |
| # Should work with bytes objects too |
| socket.sethostname(b'bar') |
| self.assertEqual(socket.gethostname(), 'bar') |
| finally: |
| socket.sethostname(oldhn) |
| |
| @unittest.skipUnless(hasattr(socket, 'if_nameindex'), |
| 'socket.if_nameindex() not available.') |
| def testInterfaceNameIndex(self): |
| interfaces = socket.if_nameindex() |
| for index, name in interfaces: |
| self.assertIsInstance(index, int) |
| self.assertIsInstance(name, str) |
| # interface indices are non-zero integers |
| self.assertGreater(index, 0) |
| _index = socket.if_nametoindex(name) |
| self.assertIsInstance(_index, int) |
| self.assertEqual(index, _index) |
| _name = socket.if_indextoname(index) |
| self.assertIsInstance(_name, str) |
| self.assertEqual(name, _name) |
| |
| @unittest.skipUnless(hasattr(socket, 'if_nameindex'), |
| 'socket.if_nameindex() not available.') |
| def testInvalidInterfaceNameIndex(self): |
| # test nonexistent interface index/name |
| self.assertRaises(OSError, socket.if_indextoname, 0) |
| self.assertRaises(OSError, socket.if_nametoindex, '_DEADBEEF') |
| # test with invalid values |
| self.assertRaises(TypeError, socket.if_nametoindex, 0) |
| self.assertRaises(TypeError, socket.if_indextoname, '_DEADBEEF') |
| |
| def testRefCountGetNameInfo(self): |
| # Testing reference count for getnameinfo |
| if hasattr(sys, "getrefcount"): |
| try: |
| # On some versions, this loses a reference |
| orig = sys.getrefcount(__name__) |
| socket.getnameinfo(__name__,0) |
| except TypeError: |
| if sys.getrefcount(__name__) != orig: |
| self.fail("socket.getnameinfo loses a reference") |
| |
| def testInterpreterCrash(self): |
| # Making sure getnameinfo doesn't crash the interpreter |
| try: |
| # On some versions, this crashes the interpreter. |
| socket.getnameinfo(('x', 0, 0, 0), 0) |
| except OSError: |
| pass |
| |
| def testNtoH(self): |
| # This just checks that htons etc. are their own inverse, |
| # when looking at the lower 16 or 32 bits. |
| sizes = {socket.htonl: 32, socket.ntohl: 32, |
| socket.htons: 16, socket.ntohs: 16} |
| for func, size in sizes.items(): |
| mask = (1<<size) - 1 |
| for i in (0, 1, 0xffff, ~0xffff, 2, 0x01234567, 0x76543210): |
| self.assertEqual(i & mask, func(func(i&mask)) & mask) |
| |
| swapped = func(mask) |
| self.assertEqual(swapped & mask, mask) |
| self.assertRaises(OverflowError, func, 1<<34) |
| |
| def testNtoHErrors(self): |
| good_values = [ 1, 2, 3, 1, 2, 3 ] |
| bad_values = [ -1, -2, -3, -1, -2, -3 ] |
| for k in good_values: |
| socket.ntohl(k) |
| socket.ntohs(k) |
| socket.htonl(k) |
| socket.htons(k) |
| for k in bad_values: |
| self.assertRaises(OverflowError, socket.ntohl, k) |
| self.assertRaises(OverflowError, socket.ntohs, k) |
| self.assertRaises(OverflowError, socket.htonl, k) |
| self.assertRaises(OverflowError, socket.htons, k) |
| |
| def testGetServBy(self): |
| eq = self.assertEqual |
| # Find one service that exists, then check all the related interfaces. |
| # I've ordered this by protocols that have both a tcp and udp |
| # protocol, at least for modern Linuxes. |
| if (sys.platform.startswith(('freebsd', 'netbsd')) |
| or sys.platform in ('linux', 'darwin')): |
| # avoid the 'echo' service on this platform, as there is an |
| # assumption breaking non-standard port/protocol entry |
| services = ('daytime', 'qotd', 'domain') |
| else: |
| services = ('echo', 'daytime', 'domain') |
| for service in services: |
| try: |
| port = socket.getservbyname(service, 'tcp') |
| break |
| except OSError: |
| pass |
| else: |
| raise OSError |
| # Try same call with optional protocol omitted |
| port2 = socket.getservbyname(service) |
| eq(port, port2) |
| # Try udp, but don't barf if it doesn't exist |
| try: |
| udpport = socket.getservbyname(service, 'udp') |
| except OSError: |
| udpport = None |
| else: |
| eq(udpport, port) |
| # Now make sure the lookup by port returns the same service name |
| eq(socket.getservbyport(port2), service) |
| eq(socket.getservbyport(port, 'tcp'), service) |
| if udpport is not None: |
| eq(socket.getservbyport(udpport, 'udp'), service) |
| # Make sure getservbyport does not accept out of range ports. |
| self.assertRaises(OverflowError, socket.getservbyport, -1) |
| self.assertRaises(OverflowError, socket.getservbyport, 65536) |
| |
| def testDefaultTimeout(self): |
| # Testing default timeout |
| # The default timeout should initially be None |
| self.assertEqual(socket.getdefaulttimeout(), None) |
| s = socket.socket() |
| self.assertEqual(s.gettimeout(), None) |
| s.close() |
| |
| # Set the default timeout to 10, and see if it propagates |
| socket.setdefaulttimeout(10) |
| self.assertEqual(socket.getdefaulttimeout(), 10) |
| s = socket.socket() |
| self.assertEqual(s.gettimeout(), 10) |
| s.close() |
| |
| # Reset the default timeout to None, and see if it propagates |
| socket.setdefaulttimeout(None) |
| self.assertEqual(socket.getdefaulttimeout(), None) |
| s = socket.socket() |
| self.assertEqual(s.gettimeout(), None) |
| s.close() |
| |
| # Check that setting it to an invalid value raises ValueError |
| self.assertRaises(ValueError, socket.setdefaulttimeout, -1) |
| |
| # Check that setting it to an invalid type raises TypeError |
| self.assertRaises(TypeError, socket.setdefaulttimeout, "spam") |
| |
| def testIPv4_inet_aton_fourbytes(self): |
| if not hasattr(socket, 'inet_aton'): |
| return # No inet_aton, nothing to check |
| # Test that issue1008086 and issue767150 are fixed. |
| # It must return 4 bytes. |
| self.assertEqual(b'\x00'*4, socket.inet_aton('0.0.0.0')) |
| self.assertEqual(b'\xff'*4, socket.inet_aton('255.255.255.255')) |
| |
| def testIPv4toString(self): |
| if not hasattr(socket, 'inet_pton'): |
| return # No inet_pton() on this platform |
| from socket import inet_aton as f, inet_pton, AF_INET |
| g = lambda a: inet_pton(AF_INET, a) |
| |
| assertInvalid = lambda func,a: self.assertRaises( |
| (OSError, ValueError), func, a |
| ) |
| |
| self.assertEqual(b'\x00\x00\x00\x00', f('0.0.0.0')) |
| self.assertEqual(b'\xff\x00\xff\x00', f('255.0.255.0')) |
| self.assertEqual(b'\xaa\xaa\xaa\xaa', f('170.170.170.170')) |
| self.assertEqual(b'\x01\x02\x03\x04', f('1.2.3.4')) |
| self.assertEqual(b'\xff\xff\xff\xff', f('255.255.255.255')) |
| assertInvalid(f, '0.0.0.') |
| assertInvalid(f, '300.0.0.0') |
| assertInvalid(f, 'a.0.0.0') |
| assertInvalid(f, '1.2.3.4.5') |
| assertInvalid(f, '::1') |
| |
| self.assertEqual(b'\x00\x00\x00\x00', g('0.0.0.0')) |
| self.assertEqual(b'\xff\x00\xff\x00', g('255.0.255.0')) |
| self.assertEqual(b'\xaa\xaa\xaa\xaa', g('170.170.170.170')) |
| self.assertEqual(b'\xff\xff\xff\xff', g('255.255.255.255')) |
| assertInvalid(g, '0.0.0.') |
| assertInvalid(g, '300.0.0.0') |
| assertInvalid(g, 'a.0.0.0') |
| assertInvalid(g, '1.2.3.4.5') |
| assertInvalid(g, '::1') |
| |
| def testIPv6toString(self): |
| if not hasattr(socket, 'inet_pton'): |
| return # No inet_pton() on this platform |
| try: |
| from socket import inet_pton, AF_INET6, has_ipv6 |
| if not has_ipv6: |
| return |
| except ImportError: |
| return |
| f = lambda a: inet_pton(AF_INET6, a) |
| assertInvalid = lambda a: self.assertRaises( |
| (OSError, ValueError), f, a |
| ) |
| |
| self.assertEqual(b'\x00' * 16, f('::')) |
| self.assertEqual(b'\x00' * 16, f('0::0')) |
| self.assertEqual(b'\x00\x01' + b'\x00' * 14, f('1::')) |
| self.assertEqual( |
| b'\x45\xef\x76\xcb\x00\x1a\x56\xef\xaf\xeb\x0b\xac\x19\x24\xae\xae', |
| f('45ef:76cb:1a:56ef:afeb:bac:1924:aeae') |
| ) |
| self.assertEqual( |
| b'\xad\x42\x0a\xbc' + b'\x00' * 4 + b'\x01\x27\x00\x00\x02\x54\x00\x02', |
| f('ad42:abc::127:0:254:2') |
| ) |
| self.assertEqual(b'\x00\x12\x00\x0a' + b'\x00' * 12, f('12:a::')) |
| assertInvalid('0x20::') |
| assertInvalid(':::') |
| assertInvalid('::0::') |
| assertInvalid('1::abc::') |
| assertInvalid('1::abc::def') |
| assertInvalid('1:2:3:4:5:6:') |
| assertInvalid('1:2:3:4:5:6') |
| assertInvalid('1:2:3:4:5:6:7:8:') |
| assertInvalid('1:2:3:4:5:6:7:8:0') |
| |
| self.assertEqual(b'\x00' * 12 + b'\xfe\x2a\x17\x40', |
| f('::254.42.23.64') |
| ) |
| self.assertEqual( |
| b'\x00\x42' + b'\x00' * 8 + b'\xa2\x9b\xfe\x2a\x17\x40', |
| f('42::a29b:254.42.23.64') |
| ) |
| self.assertEqual( |
| b'\x00\x42\xa8\xb9\x00\x00\x00\x02\xff\xff\xa2\x9b\xfe\x2a\x17\x40', |
| f('42:a8b9:0:2:ffff:a29b:254.42.23.64') |
| ) |
| assertInvalid('255.254.253.252') |
| assertInvalid('1::260.2.3.0') |
| assertInvalid('1::0.be.e.0') |
| assertInvalid('1:2:3:4:5:6:7:1.2.3.4') |
| assertInvalid('::1.2.3.4:0') |
| assertInvalid('0.100.200.0:3:4:5:6:7:8') |
| |
| def testStringToIPv4(self): |
| if not hasattr(socket, 'inet_ntop'): |
| return # No inet_ntop() on this platform |
| from socket import inet_ntoa as f, inet_ntop, AF_INET |
| g = lambda a: inet_ntop(AF_INET, a) |
| assertInvalid = lambda func,a: self.assertRaises( |
| (OSError, ValueError), func, a |
| ) |
| |
| self.assertEqual('1.0.1.0', f(b'\x01\x00\x01\x00')) |
| self.assertEqual('170.85.170.85', f(b'\xaa\x55\xaa\x55')) |
| self.assertEqual('255.255.255.255', f(b'\xff\xff\xff\xff')) |
| self.assertEqual('1.2.3.4', f(b'\x01\x02\x03\x04')) |
| assertInvalid(f, b'\x00' * 3) |
| assertInvalid(f, b'\x00' * 5) |
| assertInvalid(f, b'\x00' * 16) |
| |
| self.assertEqual('1.0.1.0', g(b'\x01\x00\x01\x00')) |
| self.assertEqual('170.85.170.85', g(b'\xaa\x55\xaa\x55')) |
| self.assertEqual('255.255.255.255', g(b'\xff\xff\xff\xff')) |
| assertInvalid(g, b'\x00' * 3) |
| assertInvalid(g, b'\x00' * 5) |
| assertInvalid(g, b'\x00' * 16) |
| |
| def testStringToIPv6(self): |
| if not hasattr(socket, 'inet_ntop'): |
| return # No inet_ntop() on this platform |
| try: |
| from socket import inet_ntop, AF_INET6, has_ipv6 |
| if not has_ipv6: |
| return |
| except ImportError: |
| return |
| f = lambda a: inet_ntop(AF_INET6, a) |
| assertInvalid = lambda a: self.assertRaises( |
| (OSError, ValueError), f, a |
| ) |
| |
| self.assertEqual('::', f(b'\x00' * 16)) |
| self.assertEqual('::1', f(b'\x00' * 15 + b'\x01')) |
| self.assertEqual( |
| 'aef:b01:506:1001:ffff:9997:55:170', |
| f(b'\x0a\xef\x0b\x01\x05\x06\x10\x01\xff\xff\x99\x97\x00\x55\x01\x70') |
| ) |
| |
| assertInvalid(b'\x12' * 15) |
| assertInvalid(b'\x12' * 17) |
| assertInvalid(b'\x12' * 4) |
| |
| # XXX The following don't test module-level functionality... |
| |
| def testSockName(self): |
| # Testing getsockname() |
| port = support.find_unused_port() |
| sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| self.addCleanup(sock.close) |
| sock.bind(("0.0.0.0", port)) |
| name = sock.getsockname() |
| # XXX(nnorwitz): http://tinyurl.com/os5jz seems to indicate |
| # it reasonable to get the host's addr in addition to 0.0.0.0. |
| # At least for eCos. This is required for the S/390 to pass. |
| try: |
| my_ip_addr = socket.gethostbyname(socket.gethostname()) |
| except OSError: |
| # Probably name lookup wasn't set up right; skip this test |
| return |
| self.assertIn(name[0], ("0.0.0.0", my_ip_addr), '%s invalid' % name[0]) |
| self.assertEqual(name[1], port) |
| |
| def testGetSockOpt(self): |
| # Testing getsockopt() |
| # We know a socket should start without reuse==0 |
| sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| self.addCleanup(sock.close) |
| reuse = sock.getsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR) |
| self.assertFalse(reuse != 0, "initial mode is reuse") |
| |
| def testSetSockOpt(self): |
| # Testing setsockopt() |
| sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| self.addCleanup(sock.close) |
| sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) |
| reuse = sock.getsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR) |
| self.assertFalse(reuse == 0, "failed to set reuse mode") |
| |
| def testSendAfterClose(self): |
| # testing send() after close() with timeout |
| sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| sock.settimeout(1) |
| sock.close() |
| self.assertRaises(OSError, sock.send, b"spam") |
| |
| def testNewAttributes(self): |
| # testing .family, .type and .protocol |
| sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| self.assertEqual(sock.family, socket.AF_INET) |
| self.assertEqual(sock.type, socket.SOCK_STREAM) |
| self.assertEqual(sock.proto, 0) |
| sock.close() |
| |
| def test_getsockaddrarg(self): |
| host = '0.0.0.0' |
| port = support.find_unused_port() |
| big_port = port + 65536 |
| neg_port = port - 65536 |
| sock = socket.socket() |
| try: |
| self.assertRaises(OverflowError, sock.bind, (host, big_port)) |
| self.assertRaises(OverflowError, sock.bind, (host, neg_port)) |
| sock.bind((host, port)) |
| finally: |
| sock.close() |
| |
| @unittest.skipUnless(os.name == "nt", "Windows specific") |
| def test_sock_ioctl(self): |
| self.assertTrue(hasattr(socket.socket, 'ioctl')) |
| self.assertTrue(hasattr(socket, 'SIO_RCVALL')) |
| self.assertTrue(hasattr(socket, 'RCVALL_ON')) |
| self.assertTrue(hasattr(socket, 'RCVALL_OFF')) |
| self.assertTrue(hasattr(socket, 'SIO_KEEPALIVE_VALS')) |
| s = socket.socket() |
| self.addCleanup(s.close) |
| self.assertRaises(ValueError, s.ioctl, -1, None) |
| s.ioctl(socket.SIO_KEEPALIVE_VALS, (1, 100, 100)) |
| |
| def testGetaddrinfo(self): |
| try: |
| socket.getaddrinfo('localhost', 80) |
| except socket.gaierror as err: |
| if err.errno == socket.EAI_SERVICE: |
| # see http://bugs.python.org/issue1282647 |
| self.skipTest("buggy libc version") |
| raise |
| # len of every sequence is supposed to be == 5 |
| for info in socket.getaddrinfo(HOST, None): |
| self.assertEqual(len(info), 5) |
| # host can be a domain name, a string representation of an |
| # IPv4/v6 address or None |
| socket.getaddrinfo('localhost', 80) |
| socket.getaddrinfo('127.0.0.1', 80) |
| socket.getaddrinfo(None, 80) |
| if support.IPV6_ENABLED: |
| socket.getaddrinfo('::1', 80) |
| # port can be a string service name such as "http", a numeric |
| # port number or None |
| socket.getaddrinfo(HOST, "http") |
| socket.getaddrinfo(HOST, 80) |
| socket.getaddrinfo(HOST, None) |
| # test family and socktype filters |
| infos = socket.getaddrinfo(HOST, None, socket.AF_INET) |
| for family, _, _, _, _ in infos: |
| self.assertEqual(family, socket.AF_INET) |
| infos = socket.getaddrinfo(HOST, None, 0, socket.SOCK_STREAM) |
| for _, socktype, _, _, _ in infos: |
| self.assertEqual(socktype, socket.SOCK_STREAM) |
| # test proto and flags arguments |
| socket.getaddrinfo(HOST, None, 0, 0, socket.SOL_TCP) |
| socket.getaddrinfo(HOST, None, 0, 0, 0, socket.AI_PASSIVE) |
| # a server willing to support both IPv4 and IPv6 will |
| # usually do this |
| socket.getaddrinfo(None, 0, socket.AF_UNSPEC, socket.SOCK_STREAM, 0, |
| socket.AI_PASSIVE) |
| # test keyword arguments |
| a = socket.getaddrinfo(HOST, None) |
| b = socket.getaddrinfo(host=HOST, port=None) |
| self.assertEqual(a, b) |
| a = socket.getaddrinfo(HOST, None, socket.AF_INET) |
| b = socket.getaddrinfo(HOST, None, family=socket.AF_INET) |
| self.assertEqual(a, b) |
| a = socket.getaddrinfo(HOST, None, 0, socket.SOCK_STREAM) |
| b = socket.getaddrinfo(HOST, None, type=socket.SOCK_STREAM) |
| self.assertEqual(a, b) |
| a = socket.getaddrinfo(HOST, None, 0, 0, socket.SOL_TCP) |
| b = socket.getaddrinfo(HOST, None, proto=socket.SOL_TCP) |
| self.assertEqual(a, b) |
| a = socket.getaddrinfo(HOST, None, 0, 0, 0, socket.AI_PASSIVE) |
| b = socket.getaddrinfo(HOST, None, flags=socket.AI_PASSIVE) |
| self.assertEqual(a, b) |
| a = socket.getaddrinfo(None, 0, socket.AF_UNSPEC, socket.SOCK_STREAM, 0, |
| socket.AI_PASSIVE) |
| b = socket.getaddrinfo(host=None, port=0, family=socket.AF_UNSPEC, |
| type=socket.SOCK_STREAM, proto=0, |
| flags=socket.AI_PASSIVE) |
| self.assertEqual(a, b) |
| # Issue #6697. |
| self.assertRaises(UnicodeEncodeError, socket.getaddrinfo, 'localhost', '\uD800') |
| |
| def test_getnameinfo(self): |
| # only IP addresses are allowed |
| self.assertRaises(OSError, socket.getnameinfo, ('mail.python.org',0), 0) |
| |
| @unittest.skipUnless(support.is_resource_enabled('network'), |
| 'network is not enabled') |
| def test_idna(self): |
| # Check for internet access before running test (issue #12804). |
| try: |
| socket.gethostbyname('python.org') |
| except socket.gaierror as e: |
| if e.errno == socket.EAI_NODATA: |
| self.skipTest('internet access required for this test') |
| # these should all be successful |
| socket.gethostbyname('испытание.python.org') |
| socket.gethostbyname_ex('испытание.python.org') |
| socket.getaddrinfo('испытание.python.org',0,socket.AF_UNSPEC,socket.SOCK_STREAM) |
| # this may not work if the forward lookup choses the IPv6 address, as that doesn't |
| # have a reverse entry yet |
| # socket.gethostbyaddr('испытание.python.org') |
| |
| def check_sendall_interrupted(self, with_timeout): |
| # socketpair() is not stricly required, but it makes things easier. |
| if not hasattr(signal, 'alarm') or not hasattr(socket, 'socketpair'): |
| self.skipTest("signal.alarm and socket.socketpair required for this test") |
| # Our signal handlers clobber the C errno by calling a math function |
| # with an invalid domain value. |
| def ok_handler(*args): |
| self.assertRaises(ValueError, math.acosh, 0) |
| def raising_handler(*args): |
| self.assertRaises(ValueError, math.acosh, 0) |
| 1 // 0 |
| c, s = socket.socketpair() |
| old_alarm = signal.signal(signal.SIGALRM, raising_handler) |
| try: |
| if with_timeout: |
| # Just above the one second minimum for signal.alarm |
| c.settimeout(1.5) |
| with self.assertRaises(ZeroDivisionError): |
| signal.alarm(1) |
| c.sendall(b"x" * (1024**2)) |
| if with_timeout: |
| signal.signal(signal.SIGALRM, ok_handler) |
| signal.alarm(1) |
| self.assertRaises(socket.timeout, c.sendall, b"x" * (1024**2)) |
| finally: |
| signal.signal(signal.SIGALRM, old_alarm) |
| c.close() |
| s.close() |
| |
| def test_sendall_interrupted(self): |
| self.check_sendall_interrupted(False) |
| |
| def test_sendall_interrupted_with_timeout(self): |
| self.check_sendall_interrupted(True) |
| |
| def test_dealloc_warn(self): |
| sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| r = repr(sock) |
| with self.assertWarns(ResourceWarning) as cm: |
| sock = None |
| support.gc_collect() |
| self.assertIn(r, str(cm.warning.args[0])) |
| # An open socket file object gets dereferenced after the socket |
| sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| f = sock.makefile('rb') |
| r = repr(sock) |
| sock = None |
| support.gc_collect() |
| with self.assertWarns(ResourceWarning): |
| f = None |
| support.gc_collect() |
| |
| def test_name_closed_socketio(self): |
| with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock: |
| fp = sock.makefile("rb") |
| fp.close() |
| self.assertEqual(repr(fp), "<_io.BufferedReader name=-1>") |
| |
| def test_unusable_closed_socketio(self): |
| with socket.socket() as sock: |
| fp = sock.makefile("rb", buffering=0) |
| self.assertTrue(fp.readable()) |
| self.assertFalse(fp.writable()) |
| self.assertFalse(fp.seekable()) |
| fp.close() |
| self.assertRaises(ValueError, fp.readable) |
| self.assertRaises(ValueError, fp.writable) |
| self.assertRaises(ValueError, fp.seekable) |
| |
| def test_pickle(self): |
| sock = socket.socket() |
| with sock: |
| for protocol in range(pickle.HIGHEST_PROTOCOL + 1): |
| self.assertRaises(TypeError, pickle.dumps, sock, protocol) |
| |
| def test_listen_backlog(self): |
| for backlog in 0, -1: |
| srv = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| srv.bind((HOST, 0)) |
| srv.listen(backlog) |
| srv.close() |
| |
| # Issue 15989 |
| srv = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| srv.bind((HOST, 0)) |
| self.assertRaises(OverflowError, srv.listen, _testcapi.INT_MAX + 1) |
| srv.close() |
| |
| @unittest.skipUnless(support.IPV6_ENABLED, 'IPv6 required for this test.') |
| def test_flowinfo(self): |
| self.assertRaises(OverflowError, socket.getnameinfo, |
| ('::1',0, 0xffffffff), 0) |
| with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as s: |
| self.assertRaises(OverflowError, s.bind, ('::1', 0, -10)) |
| |
| |
| @unittest.skipUnless(HAVE_SOCKET_CAN, 'SocketCan required for this test.') |
| class BasicCANTest(unittest.TestCase): |
| |
| def testCrucialConstants(self): |
| socket.AF_CAN |
| socket.PF_CAN |
| socket.CAN_RAW |
| |
| @unittest.skipUnless(hasattr(socket, "CAN_BCM"), |
| 'socket.CAN_BCM required for this test.') |
| def testBCMConstants(self): |
| socket.CAN_BCM |
| |
| # opcodes |
| socket.CAN_BCM_TX_SETUP # create (cyclic) transmission task |
| socket.CAN_BCM_TX_DELETE # remove (cyclic) transmission task |
| socket.CAN_BCM_TX_READ # read properties of (cyclic) transmission task |
| socket.CAN_BCM_TX_SEND # send one CAN frame |
| socket.CAN_BCM_RX_SETUP # create RX content filter subscription |
| socket.CAN_BCM_RX_DELETE # remove RX content filter subscription |
| socket.CAN_BCM_RX_READ # read properties of RX content filter subscription |
| socket.CAN_BCM_TX_STATUS # reply to TX_READ request |
| socket.CAN_BCM_TX_EXPIRED # notification on performed transmissions (count=0) |
| socket.CAN_BCM_RX_STATUS # reply to RX_READ request |
| socket.CAN_BCM_RX_TIMEOUT # cyclic message is absent |
| socket.CAN_BCM_RX_CHANGED # updated CAN frame (detected content change) |
| |
| def testCreateSocket(self): |
| with socket.socket(socket.PF_CAN, socket.SOCK_RAW, socket.CAN_RAW) as s: |
| pass |
| |
| @unittest.skipUnless(hasattr(socket, "CAN_BCM"), |
| 'socket.CAN_BCM required for this test.') |
| def testCreateBCMSocket(self): |
| with socket.socket(socket.PF_CAN, socket.SOCK_DGRAM, socket.CAN_BCM) as s: |
| pass |
| |
| def testBindAny(self): |
| with socket.socket(socket.PF_CAN, socket.SOCK_RAW, socket.CAN_RAW) as s: |
| s.bind(('', )) |
| |
| def testTooLongInterfaceName(self): |
| # most systems limit IFNAMSIZ to 16, take 1024 to be sure |
| with socket.socket(socket.PF_CAN, socket.SOCK_RAW, socket.CAN_RAW) as s: |
| self.assertRaisesRegex(OSError, 'interface name too long', |
| s.bind, ('x' * 1024,)) |
| |
| @unittest.skipUnless(hasattr(socket, "CAN_RAW_LOOPBACK"), |
| 'socket.CAN_RAW_LOOPBACK required for this test.') |
| def testLoopback(self): |
| with socket.socket(socket.PF_CAN, socket.SOCK_RAW, socket.CAN_RAW) as s: |
| for loopback in (0, 1): |
| s.setsockopt(socket.SOL_CAN_RAW, socket.CAN_RAW_LOOPBACK, |
| loopback) |
| self.assertEqual(loopback, |
| s.getsockopt(socket.SOL_CAN_RAW, socket.CAN_RAW_LOOPBACK)) |
| |
| @unittest.skipUnless(hasattr(socket, "CAN_RAW_FILTER"), |
| 'socket.CAN_RAW_FILTER required for this test.') |
| def testFilter(self): |
| can_id, can_mask = 0x200, 0x700 |
| can_filter = struct.pack("=II", can_id, can_mask) |
| with socket.socket(socket.PF_CAN, socket.SOCK_RAW, socket.CAN_RAW) as s: |
| s.setsockopt(socket.SOL_CAN_RAW, socket.CAN_RAW_FILTER, can_filter) |
| self.assertEqual(can_filter, |
| s.getsockopt(socket.SOL_CAN_RAW, socket.CAN_RAW_FILTER, 8)) |
| |
| |
| @unittest.skipUnless(HAVE_SOCKET_CAN, 'SocketCan required for this test.') |
| class CANTest(ThreadedCANSocketTest): |
| |
| def __init__(self, methodName='runTest'): |
| ThreadedCANSocketTest.__init__(self, methodName=methodName) |
| |
| @classmethod |
| def build_can_frame(cls, can_id, data): |
| """Build a CAN frame.""" |
| can_dlc = len(data) |
| data = data.ljust(8, b'\x00') |
| return struct.pack(cls.can_frame_fmt, can_id, can_dlc, data) |
| |
| @classmethod |
| def dissect_can_frame(cls, frame): |
| """Dissect a CAN frame.""" |
| can_id, can_dlc, data = struct.unpack(cls.can_frame_fmt, frame) |
| return (can_id, can_dlc, data[:can_dlc]) |
| |
| def testSendFrame(self): |
| cf, addr = self.s.recvfrom(self.bufsize) |
| self.assertEqual(self.cf, cf) |
| self.assertEqual(addr[0], self.interface) |
| self.assertEqual(addr[1], socket.AF_CAN) |
| |
| def _testSendFrame(self): |
| self.cf = self.build_can_frame(0x00, b'\x01\x02\x03\x04\x05') |
| self.cli.send(self.cf) |
| |
| def testSendMaxFrame(self): |
| cf, addr = self.s.recvfrom(self.bufsize) |
| self.assertEqual(self.cf, cf) |
| |
| def _testSendMaxFrame(self): |
| self.cf = self.build_can_frame(0x00, b'\x07' * 8) |
| self.cli.send(self.cf) |
| |
| def testSendMultiFrames(self): |
| cf, addr = self.s.recvfrom(self.bufsize) |
| self.assertEqual(self.cf1, cf) |
| |
| cf, addr = self.s.recvfrom(self.bufsize) |
| self.assertEqual(self.cf2, cf) |
| |
| def _testSendMultiFrames(self): |
| self.cf1 = self.build_can_frame(0x07, b'\x44\x33\x22\x11') |
| self.cli.send(self.cf1) |
| |
| self.cf2 = self.build_can_frame(0x12, b'\x99\x22\x33') |
| self.cli.send(self.cf2) |
| |
| @unittest.skipUnless(hasattr(socket, "CAN_BCM"), |
| 'socket.CAN_BCM required for this test.') |
| def _testBCM(self): |
| cf, addr = self.cli.recvfrom(self.bufsize) |
| self.assertEqual(self.cf, cf) |
| can_id, can_dlc, data = self.dissect_can_frame(cf) |
| self.assertEqual(self.can_id, can_id) |
| self.assertEqual(self.data, data) |
| |
| @unittest.skipUnless(hasattr(socket, "CAN_BCM"), |
| 'socket.CAN_BCM required for this test.') |
| def testBCM(self): |
| bcm = socket.socket(socket.PF_CAN, socket.SOCK_DGRAM, socket.CAN_BCM) |
| self.addCleanup(bcm.close) |
| bcm.connect((self.interface,)) |
| self.can_id = 0x123 |
| self.data = bytes([0xc0, 0xff, 0xee]) |
| self.cf = self.build_can_frame(self.can_id, self.data) |
| opcode = socket.CAN_BCM_TX_SEND |
| flags = 0 |
| count = 0 |
| ival1_seconds = ival1_usec = ival2_seconds = ival2_usec = 0 |
| bcm_can_id = 0x0222 |
| nframes = 1 |
| assert len(self.cf) == 16 |
| header = struct.pack(self.bcm_cmd_msg_fmt, |
| opcode, |
| flags, |
| count, |
| ival1_seconds, |
| ival1_usec, |
| ival2_seconds, |
| ival2_usec, |
| bcm_can_id, |
| nframes, |
| ) |
| header_plus_frame = header + self.cf |
| bytes_sent = bcm.send(header_plus_frame) |
| self.assertEqual(bytes_sent, len(header_plus_frame)) |
| |
| |
| @unittest.skipUnless(HAVE_SOCKET_RDS, 'RDS sockets required for this test.') |
| class BasicRDSTest(unittest.TestCase): |
| |
| def testCrucialConstants(self): |
| socket.AF_RDS |
| socket.PF_RDS |
| |
| def testCreateSocket(self): |
| with socket.socket(socket.PF_RDS, socket.SOCK_SEQPACKET, 0) as s: |
| pass |
| |
| def testSocketBufferSize(self): |
| bufsize = 16384 |
| with socket.socket(socket.PF_RDS, socket.SOCK_SEQPACKET, 0) as s: |
| s.setsockopt(socket.SOL_SOCKET, socket.SO_RCVBUF, bufsize) |
| s.setsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF, bufsize) |
| |
| |
| @unittest.skipUnless(HAVE_SOCKET_RDS, 'RDS sockets required for this test.') |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RDSTest(ThreadedRDSSocketTest): |
| |
| def __init__(self, methodName='runTest'): |
| ThreadedRDSSocketTest.__init__(self, methodName=methodName) |
| |
| def setUp(self): |
| super().setUp() |
| self.evt = threading.Event() |
| |
| def testSendAndRecv(self): |
| data, addr = self.serv.recvfrom(self.bufsize) |
| self.assertEqual(self.data, data) |
| self.assertEqual(self.cli_addr, addr) |
| |
| def _testSendAndRecv(self): |
| self.data = b'spam' |
| self.cli.sendto(self.data, 0, (HOST, self.port)) |
| |
| def testPeek(self): |
| data, addr = self.serv.recvfrom(self.bufsize, socket.MSG_PEEK) |
| self.assertEqual(self.data, data) |
| data, addr = self.serv.recvfrom(self.bufsize) |
| self.assertEqual(self.data, data) |
| |
| def _testPeek(self): |
| self.data = b'spam' |
| self.cli.sendto(self.data, 0, (HOST, self.port)) |
| |
| @requireAttrs(socket.socket, 'recvmsg') |
| def testSendAndRecvMsg(self): |
| data, ancdata, msg_flags, addr = self.serv.recvmsg(self.bufsize) |
| self.assertEqual(self.data, data) |
| |
| @requireAttrs(socket.socket, 'sendmsg') |
| def _testSendAndRecvMsg(self): |
| self.data = b'hello ' * 10 |
| self.cli.sendmsg([self.data], (), 0, (HOST, self.port)) |
| |
| def testSendAndRecvMulti(self): |
| data, addr = self.serv.recvfrom(self.bufsize) |
| self.assertEqual(self.data1, data) |
| |
| data, addr = self.serv.recvfrom(self.bufsize) |
| self.assertEqual(self.data2, data) |
| |
| def _testSendAndRecvMulti(self): |
| self.data1 = b'bacon' |
| self.cli.sendto(self.data1, 0, (HOST, self.port)) |
| |
| self.data2 = b'egg' |
| self.cli.sendto(self.data2, 0, (HOST, self.port)) |
| |
| def testSelect(self): |
| r, w, x = select.select([self.serv], [], [], 3.0) |
| self.assertIn(self.serv, r) |
| data, addr = self.serv.recvfrom(self.bufsize) |
| self.assertEqual(self.data, data) |
| |
| def _testSelect(self): |
| self.data = b'select' |
| self.cli.sendto(self.data, 0, (HOST, self.port)) |
| |
| def testCongestion(self): |
| # wait until the sender is done |
| self.evt.wait() |
| |
| def _testCongestion(self): |
| # test the behavior in case of congestion |
| self.data = b'fill' |
| self.cli.setblocking(False) |
| try: |
| # try to lower the receiver's socket buffer size |
| self.cli.setsockopt(socket.SOL_SOCKET, socket.SO_RCVBUF, 16384) |
| except OSError: |
| pass |
| with self.assertRaises(OSError) as cm: |
| try: |
| # fill the receiver's socket buffer |
| while True: |
| self.cli.sendto(self.data, 0, (HOST, self.port)) |
| finally: |
| # signal the receiver we're done |
| self.evt.set() |
| # sendto() should have failed with ENOBUFS |
| self.assertEqual(cm.exception.errno, errno.ENOBUFS) |
| # and we should have received a congestion notification through poll |
| r, w, x = select.select([self.serv], [], [], 3.0) |
| self.assertIn(self.serv, r) |
| |
| |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class BasicTCPTest(SocketConnectedTest): |
| |
| def __init__(self, methodName='runTest'): |
| SocketConnectedTest.__init__(self, methodName=methodName) |
| |
| def testRecv(self): |
| # Testing large receive over TCP |
| msg = self.cli_conn.recv(1024) |
| self.assertEqual(msg, MSG) |
| |
| def _testRecv(self): |
| self.serv_conn.send(MSG) |
| |
| def testOverFlowRecv(self): |
| # Testing receive in chunks over TCP |
| seg1 = self.cli_conn.recv(len(MSG) - 3) |
| seg2 = self.cli_conn.recv(1024) |
| msg = seg1 + seg2 |
| self.assertEqual(msg, MSG) |
| |
| def _testOverFlowRecv(self): |
| self.serv_conn.send(MSG) |
| |
| def testRecvFrom(self): |
| # Testing large recvfrom() over TCP |
| msg, addr = self.cli_conn.recvfrom(1024) |
| self.assertEqual(msg, MSG) |
| |
| def _testRecvFrom(self): |
| self.serv_conn.send(MSG) |
| |
| def testOverFlowRecvFrom(self): |
| # Testing recvfrom() in chunks over TCP |
| seg1, addr = self.cli_conn.recvfrom(len(MSG)-3) |
| seg2, addr = self.cli_conn.recvfrom(1024) |
| msg = seg1 + seg2 |
| self.assertEqual(msg, MSG) |
| |
| def _testOverFlowRecvFrom(self): |
| self.serv_conn.send(MSG) |
| |
| def testSendAll(self): |
| # Testing sendall() with a 2048 byte string over TCP |
| msg = b'' |
| while 1: |
| read = self.cli_conn.recv(1024) |
| if not read: |
| break |
| msg += read |
| self.assertEqual(msg, b'f' * 2048) |
| |
| def _testSendAll(self): |
| big_chunk = b'f' * 2048 |
| self.serv_conn.sendall(big_chunk) |
| |
| def testFromFd(self): |
| # Testing fromfd() |
| fd = self.cli_conn.fileno() |
| sock = socket.fromfd(fd, socket.AF_INET, socket.SOCK_STREAM) |
| self.addCleanup(sock.close) |
| self.assertIsInstance(sock, socket.socket) |
| msg = sock.recv(1024) |
| self.assertEqual(msg, MSG) |
| |
| def _testFromFd(self): |
| self.serv_conn.send(MSG) |
| |
| def testDup(self): |
| # Testing dup() |
| sock = self.cli_conn.dup() |
| self.addCleanup(sock.close) |
| msg = sock.recv(1024) |
| self.assertEqual(msg, MSG) |
| |
| def _testDup(self): |
| self.serv_conn.send(MSG) |
| |
| def testShutdown(self): |
| # Testing shutdown() |
| msg = self.cli_conn.recv(1024) |
| self.assertEqual(msg, MSG) |
| # wait for _testShutdown to finish: on OS X, when the server |
| # closes the connection the client also becomes disconnected, |
| # and the client's shutdown call will fail. (Issue #4397.) |
| self.done.wait() |
| |
| def _testShutdown(self): |
| self.serv_conn.send(MSG) |
| # Issue 15989 |
| self.assertRaises(OverflowError, self.serv_conn.shutdown, |
| _testcapi.INT_MAX + 1) |
| self.assertRaises(OverflowError, self.serv_conn.shutdown, |
| 2 + (_testcapi.UINT_MAX + 1)) |
| self.serv_conn.shutdown(2) |
| |
| def testDetach(self): |
| # Testing detach() |
| fileno = self.cli_conn.fileno() |
| f = self.cli_conn.detach() |
| self.assertEqual(f, fileno) |
| # cli_conn cannot be used anymore... |
| self.assertTrue(self.cli_conn._closed) |
| self.assertRaises(OSError, self.cli_conn.recv, 1024) |
| self.cli_conn.close() |
| # ...but we can create another socket using the (still open) |
| # file descriptor |
| sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM, fileno=f) |
| self.addCleanup(sock.close) |
| msg = sock.recv(1024) |
| self.assertEqual(msg, MSG) |
| |
| def _testDetach(self): |
| self.serv_conn.send(MSG) |
| |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class BasicUDPTest(ThreadedUDPSocketTest): |
| |
| def __init__(self, methodName='runTest'): |
| ThreadedUDPSocketTest.__init__(self, methodName=methodName) |
| |
| def testSendtoAndRecv(self): |
| # Testing sendto() and Recv() over UDP |
| msg = self.serv.recv(len(MSG)) |
| self.assertEqual(msg, MSG) |
| |
| def _testSendtoAndRecv(self): |
| self.cli.sendto(MSG, 0, (HOST, self.port)) |
| |
| def testRecvFrom(self): |
| # Testing recvfrom() over UDP |
| msg, addr = self.serv.recvfrom(len(MSG)) |
| self.assertEqual(msg, MSG) |
| |
| def _testRecvFrom(self): |
| self.cli.sendto(MSG, 0, (HOST, self.port)) |
| |
| def testRecvFromNegative(self): |
| # Negative lengths passed to recvfrom should give ValueError. |
| self.assertRaises(ValueError, self.serv.recvfrom, -1) |
| |
| def _testRecvFromNegative(self): |
| self.cli.sendto(MSG, 0, (HOST, self.port)) |
| |
| # Tests for the sendmsg()/recvmsg() interface. Where possible, the |
| # same test code is used with different families and types of socket |
| # (e.g. stream, datagram), and tests using recvmsg() are repeated |
| # using recvmsg_into(). |
| # |
| # The generic test classes such as SendmsgTests and |
| # RecvmsgGenericTests inherit from SendrecvmsgBase and expect to be |
| # supplied with sockets cli_sock and serv_sock representing the |
| # client's and the server's end of the connection respectively, and |
| # attributes cli_addr and serv_addr holding their (numeric where |
| # appropriate) addresses. |
| # |
| # The final concrete test classes combine these with subclasses of |
| # SocketTestBase which set up client and server sockets of a specific |
| # type, and with subclasses of SendrecvmsgBase such as |
| # SendrecvmsgDgramBase and SendrecvmsgConnectedBase which map these |
| # sockets to cli_sock and serv_sock and override the methods and |
| # attributes of SendrecvmsgBase to fill in destination addresses if |
| # needed when sending, check for specific flags in msg_flags, etc. |
| # |
| # RecvmsgIntoMixin provides a version of doRecvmsg() implemented using |
| # recvmsg_into(). |
| |
| # XXX: like the other datagram (UDP) tests in this module, the code |
| # here assumes that datagram delivery on the local machine will be |
| # reliable. |
| |
| class SendrecvmsgBase(ThreadSafeCleanupTestCase): |
| # Base class for sendmsg()/recvmsg() tests. |
| |
| # Time in seconds to wait before considering a test failed, or |
| # None for no timeout. Not all tests actually set a timeout. |
| fail_timeout = 3.0 |
| |
| def setUp(self): |
| self.misc_event = threading.Event() |
| super().setUp() |
| |
| def sendToServer(self, msg): |
| # Send msg to the server. |
| return self.cli_sock.send(msg) |
| |
| # Tuple of alternative default arguments for sendmsg() when called |
| # via sendmsgToServer() (e.g. to include a destination address). |
| sendmsg_to_server_defaults = () |
| |
| def sendmsgToServer(self, *args): |
| # Call sendmsg() on self.cli_sock with the given arguments, |
| # filling in any arguments which are not supplied with the |
| # corresponding items of self.sendmsg_to_server_defaults, if |
| # any. |
| return self.cli_sock.sendmsg( |
| *(args + self.sendmsg_to_server_defaults[len(args):])) |
| |
| def doRecvmsg(self, sock, bufsize, *args): |
| # Call recvmsg() on sock with given arguments and return its |
| # result. Should be used for tests which can use either |
| # recvmsg() or recvmsg_into() - RecvmsgIntoMixin overrides |
| # this method with one which emulates it using recvmsg_into(), |
| # thus allowing the same test to be used for both methods. |
| result = sock.recvmsg(bufsize, *args) |
| self.registerRecvmsgResult(result) |
| return result |
| |
| def registerRecvmsgResult(self, result): |
| # Called by doRecvmsg() with the return value of recvmsg() or |
| # recvmsg_into(). Can be overridden to arrange cleanup based |
| # on the returned ancillary data, for instance. |
| pass |
| |
| def checkRecvmsgAddress(self, addr1, addr2): |
| # Called to compare the received address with the address of |
| # the peer. |
| self.assertEqual(addr1, addr2) |
| |
| # Flags that are normally unset in msg_flags |
| msg_flags_common_unset = 0 |
| for name in ("MSG_CTRUNC", "MSG_OOB"): |
| msg_flags_common_unset |= getattr(socket, name, 0) |
| |
| # Flags that are normally set |
| msg_flags_common_set = 0 |
| |
| # Flags set when a complete record has been received (e.g. MSG_EOR |
| # for SCTP) |
| msg_flags_eor_indicator = 0 |
| |
| # Flags set when a complete record has not been received |
| # (e.g. MSG_TRUNC for datagram sockets) |
| msg_flags_non_eor_indicator = 0 |
| |
| def checkFlags(self, flags, eor=None, checkset=0, checkunset=0, ignore=0): |
| # Method to check the value of msg_flags returned by recvmsg[_into](). |
| # |
| # Checks that all bits in msg_flags_common_set attribute are |
| # set in "flags" and all bits in msg_flags_common_unset are |
| # unset. |
| # |
| # The "eor" argument specifies whether the flags should |
| # indicate that a full record (or datagram) has been received. |
| # If "eor" is None, no checks are done; otherwise, checks |
| # that: |
| # |
| # * if "eor" is true, all bits in msg_flags_eor_indicator are |
| # set and all bits in msg_flags_non_eor_indicator are unset |
| # |
| # * if "eor" is false, all bits in msg_flags_non_eor_indicator |
| # are set and all bits in msg_flags_eor_indicator are unset |
| # |
| # If "checkset" and/or "checkunset" are supplied, they require |
| # the given bits to be set or unset respectively, overriding |
| # what the attributes require for those bits. |
| # |
| # If any bits are set in "ignore", they will not be checked, |
| # regardless of the other inputs. |
| # |
| # Will raise Exception if the inputs require a bit to be both |
| # set and unset, and it is not ignored. |
| |
| defaultset = self.msg_flags_common_set |
| defaultunset = self.msg_flags_common_unset |
| |
| if eor: |
| defaultset |= self.msg_flags_eor_indicator |
| defaultunset |= self.msg_flags_non_eor_indicator |
| elif eor is not None: |
| defaultset |= self.msg_flags_non_eor_indicator |
| defaultunset |= self.msg_flags_eor_indicator |
| |
| # Function arguments override defaults |
| defaultset &= ~checkunset |
| defaultunset &= ~checkset |
| |
| # Merge arguments with remaining defaults, and check for conflicts |
| checkset |= defaultset |
| checkunset |= defaultunset |
| inboth = checkset & checkunset & ~ignore |
| if inboth: |
| raise Exception("contradictory set, unset requirements for flags " |
| "{0:#x}".format(inboth)) |
| |
| # Compare with given msg_flags value |
| mask = (checkset | checkunset) & ~ignore |
| self.assertEqual(flags & mask, checkset & mask) |
| |
| |
| class RecvmsgIntoMixin(SendrecvmsgBase): |
| # Mixin to implement doRecvmsg() using recvmsg_into(). |
| |
| def doRecvmsg(self, sock, bufsize, *args): |
| buf = bytearray(bufsize) |
| result = sock.recvmsg_into([buf], *args) |
| self.registerRecvmsgResult(result) |
| self.assertGreaterEqual(result[0], 0) |
| self.assertLessEqual(result[0], bufsize) |
| return (bytes(buf[:result[0]]),) + result[1:] |
| |
| |
| class SendrecvmsgDgramFlagsBase(SendrecvmsgBase): |
| # Defines flags to be checked in msg_flags for datagram sockets. |
| |
| @property |
| def msg_flags_non_eor_indicator(self): |
| return super().msg_flags_non_eor_indicator | socket.MSG_TRUNC |
| |
| |
| class SendrecvmsgSCTPFlagsBase(SendrecvmsgBase): |
| # Defines flags to be checked in msg_flags for SCTP sockets. |
| |
| @property |
| def msg_flags_eor_indicator(self): |
| return super().msg_flags_eor_indicator | socket.MSG_EOR |
| |
| |
| class SendrecvmsgConnectionlessBase(SendrecvmsgBase): |
| # Base class for tests on connectionless-mode sockets. Users must |
| # supply sockets on attributes cli and serv to be mapped to |
| # cli_sock and serv_sock respectively. |
| |
| @property |
| def serv_sock(self): |
| return self.serv |
| |
| @property |
| def cli_sock(self): |
| return self.cli |
| |
| @property |
| def sendmsg_to_server_defaults(self): |
| return ([], [], 0, self.serv_addr) |
| |
| def sendToServer(self, msg): |
| return self.cli_sock.sendto(msg, self.serv_addr) |
| |
| |
| class SendrecvmsgConnectedBase(SendrecvmsgBase): |
| # Base class for tests on connected sockets. Users must supply |
| # sockets on attributes serv_conn and cli_conn (representing the |
| # connections *to* the server and the client), to be mapped to |
| # cli_sock and serv_sock respectively. |
| |
| @property |
| def serv_sock(self): |
| return self.cli_conn |
| |
| @property |
| def cli_sock(self): |
| return self.serv_conn |
| |
| def checkRecvmsgAddress(self, addr1, addr2): |
| # Address is currently "unspecified" for a connected socket, |
| # so we don't examine it |
| pass |
| |
| |
| class SendrecvmsgServerTimeoutBase(SendrecvmsgBase): |
| # Base class to set a timeout on server's socket. |
| |
| def setUp(self): |
| super().setUp() |
| self.serv_sock.settimeout(self.fail_timeout) |
| |
| |
| class SendmsgTests(SendrecvmsgServerTimeoutBase): |
| # Tests for sendmsg() which can use any socket type and do not |
| # involve recvmsg() or recvmsg_into(). |
| |
| def testSendmsg(self): |
| # Send a simple message with sendmsg(). |
| self.assertEqual(self.serv_sock.recv(len(MSG)), MSG) |
| |
| def _testSendmsg(self): |
| self.assertEqual(self.sendmsgToServer([MSG]), len(MSG)) |
| |
| def testSendmsgDataGenerator(self): |
| # Send from buffer obtained from a generator (not a sequence). |
| self.assertEqual(self.serv_sock.recv(len(MSG)), MSG) |
| |
| def _testSendmsgDataGenerator(self): |
| self.assertEqual(self.sendmsgToServer((o for o in [MSG])), |
| len(MSG)) |
| |
| def testSendmsgAncillaryGenerator(self): |
| # Gather (empty) ancillary data from a generator. |
| self.assertEqual(self.serv_sock.recv(len(MSG)), MSG) |
| |
| def _testSendmsgAncillaryGenerator(self): |
| self.assertEqual(self.sendmsgToServer([MSG], (o for o in [])), |
| len(MSG)) |
| |
| def testSendmsgArray(self): |
| # Send data from an array instead of the usual bytes object. |
| self.assertEqual(self.serv_sock.recv(len(MSG)), MSG) |
| |
| def _testSendmsgArray(self): |
| self.assertEqual(self.sendmsgToServer([array.array("B", MSG)]), |
| len(MSG)) |
| |
| def testSendmsgGather(self): |
| # Send message data from more than one buffer (gather write). |
| self.assertEqual(self.serv_sock.recv(len(MSG)), MSG) |
| |
| def _testSendmsgGather(self): |
| self.assertEqual(self.sendmsgToServer([MSG[:3], MSG[3:]]), len(MSG)) |
| |
| def testSendmsgBadArgs(self): |
| # Check that sendmsg() rejects invalid arguments. |
| self.assertEqual(self.serv_sock.recv(1000), b"done") |
| |
| def _testSendmsgBadArgs(self): |
| self.assertRaises(TypeError, self.cli_sock.sendmsg) |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| b"not in an iterable") |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| object()) |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| [object()]) |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| [MSG, object()]) |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| [MSG], object()) |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| [MSG], [], object()) |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| [MSG], [], 0, object()) |
| self.sendToServer(b"done") |
| |
| def testSendmsgBadCmsg(self): |
| # Check that invalid ancillary data items are rejected. |
| self.assertEqual(self.serv_sock.recv(1000), b"done") |
| |
| def _testSendmsgBadCmsg(self): |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| [MSG], [object()]) |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| [MSG], [(object(), 0, b"data")]) |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| [MSG], [(0, object(), b"data")]) |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| [MSG], [(0, 0, object())]) |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| [MSG], [(0, 0)]) |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| [MSG], [(0, 0, b"data", 42)]) |
| self.sendToServer(b"done") |
| |
| @requireAttrs(socket, "CMSG_SPACE") |
| def testSendmsgBadMultiCmsg(self): |
| # Check that invalid ancillary data items are rejected when |
| # more than one item is present. |
| self.assertEqual(self.serv_sock.recv(1000), b"done") |
| |
| @testSendmsgBadMultiCmsg.client_skip |
| def _testSendmsgBadMultiCmsg(self): |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| [MSG], [0, 0, b""]) |
| self.assertRaises(TypeError, self.sendmsgToServer, |
| [MSG], [(0, 0, b""), object()]) |
| self.sendToServer(b"done") |
| |
| def testSendmsgExcessCmsgReject(self): |
| # Check that sendmsg() rejects excess ancillary data items |
| # when the number that can be sent is limited. |
| self.assertEqual(self.serv_sock.recv(1000), b"done") |
| |
| def _testSendmsgExcessCmsgReject(self): |
| if not hasattr(socket, "CMSG_SPACE"): |
| # Can only send one item |
| with self.assertRaises(OSError) as cm: |
| self.sendmsgToServer([MSG], [(0, 0, b""), (0, 0, b"")]) |
| self.assertIsNone(cm.exception.errno) |
| self.sendToServer(b"done") |
| |
| def testSendmsgAfterClose(self): |
| # Check that sendmsg() fails on a closed socket. |
| pass |
| |
| def _testSendmsgAfterClose(self): |
| self.cli_sock.close() |
| self.assertRaises(OSError, self.sendmsgToServer, [MSG]) |
| |
| |
| class SendmsgStreamTests(SendmsgTests): |
| # Tests for sendmsg() which require a stream socket and do not |
| # involve recvmsg() or recvmsg_into(). |
| |
| def testSendmsgExplicitNoneAddr(self): |
| # Check that peer address can be specified as None. |
| self.assertEqual(self.serv_sock.recv(len(MSG)), MSG) |
| |
| def _testSendmsgExplicitNoneAddr(self): |
| self.assertEqual(self.sendmsgToServer([MSG], [], 0, None), len(MSG)) |
| |
| def testSendmsgTimeout(self): |
| # Check that timeout works with sendmsg(). |
| self.assertEqual(self.serv_sock.recv(512), b"a"*512) |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| |
| def _testSendmsgTimeout(self): |
| try: |
| self.cli_sock.settimeout(0.03) |
| with self.assertRaises(socket.timeout): |
| while True: |
| self.sendmsgToServer([b"a"*512]) |
| finally: |
| self.misc_event.set() |
| |
| # XXX: would be nice to have more tests for sendmsg flags argument. |
| |
| # Linux supports MSG_DONTWAIT when sending, but in general, it |
| # only works when receiving. Could add other platforms if they |
| # support it too. |
| @skipWithClientIf(sys.platform not in {"linux2"}, |
| "MSG_DONTWAIT not known to work on this platform when " |
| "sending") |
| def testSendmsgDontWait(self): |
| # Check that MSG_DONTWAIT in flags causes non-blocking behaviour. |
| self.assertEqual(self.serv_sock.recv(512), b"a"*512) |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| |
| @testSendmsgDontWait.client_skip |
| def _testSendmsgDontWait(self): |
| try: |
| with self.assertRaises(OSError) as cm: |
| while True: |
| self.sendmsgToServer([b"a"*512], [], socket.MSG_DONTWAIT) |
| self.assertIn(cm.exception.errno, |
| (errno.EAGAIN, errno.EWOULDBLOCK)) |
| finally: |
| self.misc_event.set() |
| |
| |
| class SendmsgConnectionlessTests(SendmsgTests): |
| # Tests for sendmsg() which require a connectionless-mode |
| # (e.g. datagram) socket, and do not involve recvmsg() or |
| # recvmsg_into(). |
| |
| def testSendmsgNoDestAddr(self): |
| # Check that sendmsg() fails when no destination address is |
| # given for unconnected socket. |
| pass |
| |
| def _testSendmsgNoDestAddr(self): |
| self.assertRaises(OSError, self.cli_sock.sendmsg, |
| [MSG]) |
| self.assertRaises(OSError, self.cli_sock.sendmsg, |
| [MSG], [], 0, None) |
| |
| |
| class RecvmsgGenericTests(SendrecvmsgBase): |
| # Tests for recvmsg() which can also be emulated using |
| # recvmsg_into(), and can use any socket type. |
| |
| def testRecvmsg(self): |
| # Receive a simple message with recvmsg[_into](). |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, len(MSG)) |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True) |
| |
| def _testRecvmsg(self): |
| self.sendToServer(MSG) |
| |
| def testRecvmsgExplicitDefaults(self): |
| # Test recvmsg[_into]() with default arguments provided explicitly. |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG), 0, 0) |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True) |
| |
| def _testRecvmsgExplicitDefaults(self): |
| self.sendToServer(MSG) |
| |
| def testRecvmsgShorter(self): |
| # Receive a message smaller than buffer. |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG) + 42) |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True) |
| |
| def _testRecvmsgShorter(self): |
| self.sendToServer(MSG) |
| |
| # FreeBSD < 8 doesn't always set the MSG_TRUNC flag when a truncated |
| # datagram is received (issue #13001). |
| @support.requires_freebsd_version(8) |
| def testRecvmsgTrunc(self): |
| # Receive part of message, check for truncation indicators. |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG) - 3) |
| self.assertEqual(msg, MSG[:-3]) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=False) |
| |
| @support.requires_freebsd_version(8) |
| def _testRecvmsgTrunc(self): |
| self.sendToServer(MSG) |
| |
| def testRecvmsgShortAncillaryBuf(self): |
| # Test ancillary data buffer too small to hold any ancillary data. |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG), 1) |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True) |
| |
| def _testRecvmsgShortAncillaryBuf(self): |
| self.sendToServer(MSG) |
| |
| def testRecvmsgLongAncillaryBuf(self): |
| # Test large ancillary data buffer. |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG), 10240) |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True) |
| |
| def _testRecvmsgLongAncillaryBuf(self): |
| self.sendToServer(MSG) |
| |
| def testRecvmsgAfterClose(self): |
| # Check that recvmsg[_into]() fails on a closed socket. |
| self.serv_sock.close() |
| self.assertRaises(OSError, self.doRecvmsg, self.serv_sock, 1024) |
| |
| def _testRecvmsgAfterClose(self): |
| pass |
| |
| def testRecvmsgTimeout(self): |
| # Check that timeout works. |
| try: |
| self.serv_sock.settimeout(0.03) |
| self.assertRaises(socket.timeout, |
| self.doRecvmsg, self.serv_sock, len(MSG)) |
| finally: |
| self.misc_event.set() |
| |
| def _testRecvmsgTimeout(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| |
| @requireAttrs(socket, "MSG_PEEK") |
| def testRecvmsgPeek(self): |
| # Check that MSG_PEEK in flags enables examination of pending |
| # data without consuming it. |
| |
| # Receive part of data with MSG_PEEK. |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG) - 3, 0, |
| socket.MSG_PEEK) |
| self.assertEqual(msg, MSG[:-3]) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| # Ignoring MSG_TRUNC here (so this test is the same for stream |
| # and datagram sockets). Some wording in POSIX seems to |
| # suggest that it needn't be set when peeking, but that may |
| # just be a slip. |
| self.checkFlags(flags, eor=False, |
| ignore=getattr(socket, "MSG_TRUNC", 0)) |
| |
| # Receive all data with MSG_PEEK. |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG), 0, |
| socket.MSG_PEEK) |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True) |
| |
| # Check that the same data can still be received normally. |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, len(MSG)) |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True) |
| |
| @testRecvmsgPeek.client_skip |
| def _testRecvmsgPeek(self): |
| self.sendToServer(MSG) |
| |
| @requireAttrs(socket.socket, "sendmsg") |
| def testRecvmsgFromSendmsg(self): |
| # Test receiving with recvmsg[_into]() when message is sent |
| # using sendmsg(). |
| self.serv_sock.settimeout(self.fail_timeout) |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, len(MSG)) |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True) |
| |
| @testRecvmsgFromSendmsg.client_skip |
| def _testRecvmsgFromSendmsg(self): |
| self.assertEqual(self.sendmsgToServer([MSG[:3], MSG[3:]]), len(MSG)) |
| |
| |
| class RecvmsgGenericStreamTests(RecvmsgGenericTests): |
| # Tests which require a stream socket and can use either recvmsg() |
| # or recvmsg_into(). |
| |
| def testRecvmsgEOF(self): |
| # Receive end-of-stream indicator (b"", peer socket closed). |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, 1024) |
| self.assertEqual(msg, b"") |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=None) # Might not have end-of-record marker |
| |
| def _testRecvmsgEOF(self): |
| self.cli_sock.close() |
| |
| def testRecvmsgOverflow(self): |
| # Receive a message in more than one chunk. |
| seg1, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG) - 3) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=False) |
| |
| seg2, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, 1024) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True) |
| |
| msg = seg1 + seg2 |
| self.assertEqual(msg, MSG) |
| |
| def _testRecvmsgOverflow(self): |
| self.sendToServer(MSG) |
| |
| |
| class RecvmsgTests(RecvmsgGenericTests): |
| # Tests for recvmsg() which can use any socket type. |
| |
| def testRecvmsgBadArgs(self): |
| # Check that recvmsg() rejects invalid arguments. |
| self.assertRaises(TypeError, self.serv_sock.recvmsg) |
| self.assertRaises(ValueError, self.serv_sock.recvmsg, |
| -1, 0, 0) |
| self.assertRaises(ValueError, self.serv_sock.recvmsg, |
| len(MSG), -1, 0) |
| self.assertRaises(TypeError, self.serv_sock.recvmsg, |
| [bytearray(10)], 0, 0) |
| self.assertRaises(TypeError, self.serv_sock.recvmsg, |
| object(), 0, 0) |
| self.assertRaises(TypeError, self.serv_sock.recvmsg, |
| len(MSG), object(), 0) |
| self.assertRaises(TypeError, self.serv_sock.recvmsg, |
| len(MSG), 0, object()) |
| |
| msg, ancdata, flags, addr = self.serv_sock.recvmsg(len(MSG), 0, 0) |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True) |
| |
| def _testRecvmsgBadArgs(self): |
| self.sendToServer(MSG) |
| |
| |
| class RecvmsgIntoTests(RecvmsgIntoMixin, RecvmsgGenericTests): |
| # Tests for recvmsg_into() which can use any socket type. |
| |
| def testRecvmsgIntoBadArgs(self): |
| # Check that recvmsg_into() rejects invalid arguments. |
| buf = bytearray(len(MSG)) |
| self.assertRaises(TypeError, self.serv_sock.recvmsg_into) |
| self.assertRaises(TypeError, self.serv_sock.recvmsg_into, |
| len(MSG), 0, 0) |
| self.assertRaises(TypeError, self.serv_sock.recvmsg_into, |
| buf, 0, 0) |
| self.assertRaises(TypeError, self.serv_sock.recvmsg_into, |
| [object()], 0, 0) |
| self.assertRaises(TypeError, self.serv_sock.recvmsg_into, |
| [b"I'm not writable"], 0, 0) |
| self.assertRaises(TypeError, self.serv_sock.recvmsg_into, |
| [buf, object()], 0, 0) |
| self.assertRaises(ValueError, self.serv_sock.recvmsg_into, |
| [buf], -1, 0) |
| self.assertRaises(TypeError, self.serv_sock.recvmsg_into, |
| [buf], object(), 0) |
| self.assertRaises(TypeError, self.serv_sock.recvmsg_into, |
| [buf], 0, object()) |
| |
| nbytes, ancdata, flags, addr = self.serv_sock.recvmsg_into([buf], 0, 0) |
| self.assertEqual(nbytes, len(MSG)) |
| self.assertEqual(buf, bytearray(MSG)) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True) |
| |
| def _testRecvmsgIntoBadArgs(self): |
| self.sendToServer(MSG) |
| |
| def testRecvmsgIntoGenerator(self): |
| # Receive into buffer obtained from a generator (not a sequence). |
| buf = bytearray(len(MSG)) |
| nbytes, ancdata, flags, addr = self.serv_sock.recvmsg_into( |
| (o for o in [buf])) |
| self.assertEqual(nbytes, len(MSG)) |
| self.assertEqual(buf, bytearray(MSG)) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True) |
| |
| def _testRecvmsgIntoGenerator(self): |
| self.sendToServer(MSG) |
| |
| def testRecvmsgIntoArray(self): |
| # Receive into an array rather than the usual bytearray. |
| buf = array.array("B", [0] * len(MSG)) |
| nbytes, ancdata, flags, addr = self.serv_sock.recvmsg_into([buf]) |
| self.assertEqual(nbytes, len(MSG)) |
| self.assertEqual(buf.tobytes(), MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True) |
| |
| def _testRecvmsgIntoArray(self): |
| self.sendToServer(MSG) |
| |
| def testRecvmsgIntoScatter(self): |
| # Receive into multiple buffers (scatter write). |
| b1 = bytearray(b"----") |
| b2 = bytearray(b"0123456789") |
| b3 = bytearray(b"--------------") |
| nbytes, ancdata, flags, addr = self.serv_sock.recvmsg_into( |
| [b1, memoryview(b2)[2:9], b3]) |
| self.assertEqual(nbytes, len(b"Mary had a little lamb")) |
| self.assertEqual(b1, bytearray(b"Mary")) |
| self.assertEqual(b2, bytearray(b"01 had a 9")) |
| self.assertEqual(b3, bytearray(b"little lamb---")) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True) |
| |
| def _testRecvmsgIntoScatter(self): |
| self.sendToServer(b"Mary had a little lamb") |
| |
| |
| class CmsgMacroTests(unittest.TestCase): |
| # Test the functions CMSG_LEN() and CMSG_SPACE(). Tests |
| # assumptions used by sendmsg() and recvmsg[_into](), which share |
| # code with these functions. |
| |
| # Match the definition in socketmodule.c |
| socklen_t_limit = min(0x7fffffff, _testcapi.INT_MAX) |
| |
| @requireAttrs(socket, "CMSG_LEN") |
| def testCMSG_LEN(self): |
| # Test CMSG_LEN() with various valid and invalid values, |
| # checking the assumptions used by recvmsg() and sendmsg(). |
| toobig = self.socklen_t_limit - socket.CMSG_LEN(0) + 1 |
| values = list(range(257)) + list(range(toobig - 257, toobig)) |
| |
| # struct cmsghdr has at least three members, two of which are ints |
| self.assertGreater(socket.CMSG_LEN(0), array.array("i").itemsize * 2) |
| for n in values: |
| ret = socket.CMSG_LEN(n) |
| # This is how recvmsg() calculates the data size |
| self.assertEqual(ret - socket.CMSG_LEN(0), n) |
| self.assertLessEqual(ret, self.socklen_t_limit) |
| |
| self.assertRaises(OverflowError, socket.CMSG_LEN, -1) |
| # sendmsg() shares code with these functions, and requires |
| # that it reject values over the limit. |
| self.assertRaises(OverflowError, socket.CMSG_LEN, toobig) |
| self.assertRaises(OverflowError, socket.CMSG_LEN, sys.maxsize) |
| |
| @requireAttrs(socket, "CMSG_SPACE") |
| def testCMSG_SPACE(self): |
| # Test CMSG_SPACE() with various valid and invalid values, |
| # checking the assumptions used by sendmsg(). |
| toobig = self.socklen_t_limit - socket.CMSG_SPACE(1) + 1 |
| values = list(range(257)) + list(range(toobig - 257, toobig)) |
| |
| last = socket.CMSG_SPACE(0) |
| # struct cmsghdr has at least three members, two of which are ints |
| self.assertGreater(last, array.array("i").itemsize * 2) |
| for n in values: |
| ret = socket.CMSG_SPACE(n) |
| self.assertGreaterEqual(ret, last) |
| self.assertGreaterEqual(ret, socket.CMSG_LEN(n)) |
| self.assertGreaterEqual(ret, n + socket.CMSG_LEN(0)) |
| self.assertLessEqual(ret, self.socklen_t_limit) |
| last = ret |
| |
| self.assertRaises(OverflowError, socket.CMSG_SPACE, -1) |
| # sendmsg() shares code with these functions, and requires |
| # that it reject values over the limit. |
| self.assertRaises(OverflowError, socket.CMSG_SPACE, toobig) |
| self.assertRaises(OverflowError, socket.CMSG_SPACE, sys.maxsize) |
| |
| |
| class SCMRightsTest(SendrecvmsgServerTimeoutBase): |
| # Tests for file descriptor passing on Unix-domain sockets. |
| |
| # Invalid file descriptor value that's unlikely to evaluate to a |
| # real FD even if one of its bytes is replaced with a different |
| # value (which shouldn't actually happen). |
| badfd = -0x5555 |
| |
| def newFDs(self, n): |
| # Return a list of n file descriptors for newly-created files |
| # containing their list indices as ASCII numbers. |
| fds = [] |
| for i in range(n): |
| fd, path = tempfile.mkstemp() |
| self.addCleanup(os.unlink, path) |
| self.addCleanup(os.close, fd) |
| os.write(fd, str(i).encode()) |
| fds.append(fd) |
| return fds |
| |
| def checkFDs(self, fds): |
| # Check that the file descriptors in the given list contain |
| # their correct list indices as ASCII numbers. |
| for n, fd in enumerate(fds): |
| os.lseek(fd, 0, os.SEEK_SET) |
| self.assertEqual(os.read(fd, 1024), str(n).encode()) |
| |
| def registerRecvmsgResult(self, result): |
| self.addCleanup(self.closeRecvmsgFDs, result) |
| |
| def closeRecvmsgFDs(self, recvmsg_result): |
| # Close all file descriptors specified in the ancillary data |
| # of the given return value from recvmsg() or recvmsg_into(). |
| for cmsg_level, cmsg_type, cmsg_data in recvmsg_result[1]: |
| if (cmsg_level == socket.SOL_SOCKET and |
| cmsg_type == socket.SCM_RIGHTS): |
| fds = array.array("i") |
| fds.frombytes(cmsg_data[: |
| len(cmsg_data) - (len(cmsg_data) % fds.itemsize)]) |
| for fd in fds: |
| os.close(fd) |
| |
| def createAndSendFDs(self, n): |
| # Send n new file descriptors created by newFDs() to the |
| # server, with the constant MSG as the non-ancillary data. |
| self.assertEqual( |
| self.sendmsgToServer([MSG], |
| [(socket.SOL_SOCKET, |
| socket.SCM_RIGHTS, |
| array.array("i", self.newFDs(n)))]), |
| len(MSG)) |
| |
| def checkRecvmsgFDs(self, numfds, result, maxcmsgs=1, ignoreflags=0): |
| # Check that constant MSG was received with numfds file |
| # descriptors in a maximum of maxcmsgs control messages (which |
| # must contain only complete integers). By default, check |
| # that MSG_CTRUNC is unset, but ignore any flags in |
| # ignoreflags. |
| msg, ancdata, flags, addr = result |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.checkFlags(flags, eor=True, checkunset=socket.MSG_CTRUNC, |
| ignore=ignoreflags) |
| |
| self.assertIsInstance(ancdata, list) |
| self.assertLessEqual(len(ancdata), maxcmsgs) |
| fds = array.array("i") |
| for item in ancdata: |
| self.assertIsInstance(item, tuple) |
| cmsg_level, cmsg_type, cmsg_data = item |
| self.assertEqual(cmsg_level, socket.SOL_SOCKET) |
| self.assertEqual(cmsg_type, socket.SCM_RIGHTS) |
| self.assertIsInstance(cmsg_data, bytes) |
| self.assertEqual(len(cmsg_data) % SIZEOF_INT, 0) |
| fds.frombytes(cmsg_data) |
| |
| self.assertEqual(len(fds), numfds) |
| self.checkFDs(fds) |
| |
| def testFDPassSimple(self): |
| # Pass a single FD (array read from bytes object). |
| self.checkRecvmsgFDs(1, self.doRecvmsg(self.serv_sock, |
| len(MSG), 10240)) |
| |
| def _testFDPassSimple(self): |
| self.assertEqual( |
| self.sendmsgToServer( |
| [MSG], |
| [(socket.SOL_SOCKET, |
| socket.SCM_RIGHTS, |
| array.array("i", self.newFDs(1)).tobytes())]), |
| len(MSG)) |
| |
| def testMultipleFDPass(self): |
| # Pass multiple FDs in a single array. |
| self.checkRecvmsgFDs(4, self.doRecvmsg(self.serv_sock, |
| len(MSG), 10240)) |
| |
| def _testMultipleFDPass(self): |
| self.createAndSendFDs(4) |
| |
| @requireAttrs(socket, "CMSG_SPACE") |
| def testFDPassCMSG_SPACE(self): |
| # Test using CMSG_SPACE() to calculate ancillary buffer size. |
| self.checkRecvmsgFDs( |
| 4, self.doRecvmsg(self.serv_sock, len(MSG), |
| socket.CMSG_SPACE(4 * SIZEOF_INT))) |
| |
| @testFDPassCMSG_SPACE.client_skip |
| def _testFDPassCMSG_SPACE(self): |
| self.createAndSendFDs(4) |
| |
| def testFDPassCMSG_LEN(self): |
| # Test using CMSG_LEN() to calculate ancillary buffer size. |
| self.checkRecvmsgFDs(1, |
| self.doRecvmsg(self.serv_sock, len(MSG), |
| socket.CMSG_LEN(4 * SIZEOF_INT)), |
| # RFC 3542 says implementations may set |
| # MSG_CTRUNC if there isn't enough space |
| # for trailing padding. |
| ignoreflags=socket.MSG_CTRUNC) |
| |
| def _testFDPassCMSG_LEN(self): |
| self.createAndSendFDs(1) |
| |
| # Issue #12958: The following test has problems on Mac OS X |
| @support.anticipate_failure(sys.platform == "darwin") |
| @requireAttrs(socket, "CMSG_SPACE") |
| def testFDPassSeparate(self): |
| # Pass two FDs in two separate arrays. Arrays may be combined |
| # into a single control message by the OS. |
| self.checkRecvmsgFDs(2, |
| self.doRecvmsg(self.serv_sock, len(MSG), 10240), |
| maxcmsgs=2) |
| |
| @testFDPassSeparate.client_skip |
| @support.anticipate_failure(sys.platform == "darwin") |
| def _testFDPassSeparate(self): |
| fd0, fd1 = self.newFDs(2) |
| self.assertEqual( |
| self.sendmsgToServer([MSG], [(socket.SOL_SOCKET, |
| socket.SCM_RIGHTS, |
| array.array("i", [fd0])), |
| (socket.SOL_SOCKET, |
| socket.SCM_RIGHTS, |
| array.array("i", [fd1]))]), |
| len(MSG)) |
| |
| # Issue #12958: The following test has problems on Mac OS X |
| @support.anticipate_failure(sys.platform == "darwin") |
| @requireAttrs(socket, "CMSG_SPACE") |
| def testFDPassSeparateMinSpace(self): |
| # Pass two FDs in two separate arrays, receiving them into the |
| # minimum space for two arrays. |
| self.checkRecvmsgFDs(2, |
| self.doRecvmsg(self.serv_sock, len(MSG), |
| socket.CMSG_SPACE(SIZEOF_INT) + |
| socket.CMSG_LEN(SIZEOF_INT)), |
| maxcmsgs=2, ignoreflags=socket.MSG_CTRUNC) |
| |
| @testFDPassSeparateMinSpace.client_skip |
| @support.anticipate_failure(sys.platform == "darwin") |
| def _testFDPassSeparateMinSpace(self): |
| fd0, fd1 = self.newFDs(2) |
| self.assertEqual( |
| self.sendmsgToServer([MSG], [(socket.SOL_SOCKET, |
| socket.SCM_RIGHTS, |
| array.array("i", [fd0])), |
| (socket.SOL_SOCKET, |
| socket.SCM_RIGHTS, |
| array.array("i", [fd1]))]), |
| len(MSG)) |
| |
| def sendAncillaryIfPossible(self, msg, ancdata): |
| # Try to send msg and ancdata to server, but if the system |
| # call fails, just send msg with no ancillary data. |
| try: |
| nbytes = self.sendmsgToServer([msg], ancdata) |
| except OSError as e: |
| # Check that it was the system call that failed |
| self.assertIsInstance(e.errno, int) |
| nbytes = self.sendmsgToServer([msg]) |
| self.assertEqual(nbytes, len(msg)) |
| |
| def testFDPassEmpty(self): |
| # Try to pass an empty FD array. Can receive either no array |
| # or an empty array. |
| self.checkRecvmsgFDs(0, self.doRecvmsg(self.serv_sock, |
| len(MSG), 10240), |
| ignoreflags=socket.MSG_CTRUNC) |
| |
| def _testFDPassEmpty(self): |
| self.sendAncillaryIfPossible(MSG, [(socket.SOL_SOCKET, |
| socket.SCM_RIGHTS, |
| b"")]) |
| |
| def testFDPassPartialInt(self): |
| # Try to pass a truncated FD array. |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG), 10240) |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.checkFlags(flags, eor=True, ignore=socket.MSG_CTRUNC) |
| self.assertLessEqual(len(ancdata), 1) |
| for cmsg_level, cmsg_type, cmsg_data in ancdata: |
| self.assertEqual(cmsg_level, socket.SOL_SOCKET) |
| self.assertEqual(cmsg_type, socket.SCM_RIGHTS) |
| self.assertLess(len(cmsg_data), SIZEOF_INT) |
| |
| def _testFDPassPartialInt(self): |
| self.sendAncillaryIfPossible( |
| MSG, |
| [(socket.SOL_SOCKET, |
| socket.SCM_RIGHTS, |
| array.array("i", [self.badfd]).tobytes()[:-1])]) |
| |
| @requireAttrs(socket, "CMSG_SPACE") |
| def testFDPassPartialIntInMiddle(self): |
| # Try to pass two FD arrays, the first of which is truncated. |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG), 10240) |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.checkFlags(flags, eor=True, ignore=socket.MSG_CTRUNC) |
| self.assertLessEqual(len(ancdata), 2) |
| fds = array.array("i") |
| # Arrays may have been combined in a single control message |
| for cmsg_level, cmsg_type, cmsg_data in ancdata: |
| self.assertEqual(cmsg_level, socket.SOL_SOCKET) |
| self.assertEqual(cmsg_type, socket.SCM_RIGHTS) |
| fds.frombytes(cmsg_data[: |
| len(cmsg_data) - (len(cmsg_data) % fds.itemsize)]) |
| self.assertLessEqual(len(fds), 2) |
| self.checkFDs(fds) |
| |
| @testFDPassPartialIntInMiddle.client_skip |
| def _testFDPassPartialIntInMiddle(self): |
| fd0, fd1 = self.newFDs(2) |
| self.sendAncillaryIfPossible( |
| MSG, |
| [(socket.SOL_SOCKET, |
| socket.SCM_RIGHTS, |
| array.array("i", [fd0, self.badfd]).tobytes()[:-1]), |
| (socket.SOL_SOCKET, |
| socket.SCM_RIGHTS, |
| array.array("i", [fd1]))]) |
| |
| def checkTruncatedHeader(self, result, ignoreflags=0): |
| # Check that no ancillary data items are returned when data is |
| # truncated inside the cmsghdr structure. |
| msg, ancdata, flags, addr = result |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True, checkset=socket.MSG_CTRUNC, |
| ignore=ignoreflags) |
| |
| def testCmsgTruncNoBufSize(self): |
| # Check that no ancillary data is received when no buffer size |
| # is specified. |
| self.checkTruncatedHeader(self.doRecvmsg(self.serv_sock, len(MSG)), |
| # BSD seems to set MSG_CTRUNC only |
| # if an item has been partially |
| # received. |
| ignoreflags=socket.MSG_CTRUNC) |
| |
| def _testCmsgTruncNoBufSize(self): |
| self.createAndSendFDs(1) |
| |
| def testCmsgTrunc0(self): |
| # Check that no ancillary data is received when buffer size is 0. |
| self.checkTruncatedHeader(self.doRecvmsg(self.serv_sock, len(MSG), 0), |
| ignoreflags=socket.MSG_CTRUNC) |
| |
| def _testCmsgTrunc0(self): |
| self.createAndSendFDs(1) |
| |
| # Check that no ancillary data is returned for various non-zero |
| # (but still too small) buffer sizes. |
| |
| def testCmsgTrunc1(self): |
| self.checkTruncatedHeader(self.doRecvmsg(self.serv_sock, len(MSG), 1)) |
| |
| def _testCmsgTrunc1(self): |
| self.createAndSendFDs(1) |
| |
| def testCmsgTrunc2Int(self): |
| # The cmsghdr structure has at least three members, two of |
| # which are ints, so we still shouldn't see any ancillary |
| # data. |
| self.checkTruncatedHeader(self.doRecvmsg(self.serv_sock, len(MSG), |
| SIZEOF_INT * 2)) |
| |
| def _testCmsgTrunc2Int(self): |
| self.createAndSendFDs(1) |
| |
| def testCmsgTruncLen0Minus1(self): |
| self.checkTruncatedHeader(self.doRecvmsg(self.serv_sock, len(MSG), |
| socket.CMSG_LEN(0) - 1)) |
| |
| def _testCmsgTruncLen0Minus1(self): |
| self.createAndSendFDs(1) |
| |
| # The following tests try to truncate the control message in the |
| # middle of the FD array. |
| |
| def checkTruncatedArray(self, ancbuf, maxdata, mindata=0): |
| # Check that file descriptor data is truncated to between |
| # mindata and maxdata bytes when received with buffer size |
| # ancbuf, and that any complete file descriptor numbers are |
| # valid. |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG), ancbuf) |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.checkFlags(flags, eor=True, checkset=socket.MSG_CTRUNC) |
| |
| if mindata == 0 and ancdata == []: |
| return |
| self.assertEqual(len(ancdata), 1) |
| cmsg_level, cmsg_type, cmsg_data = ancdata[0] |
| self.assertEqual(cmsg_level, socket.SOL_SOCKET) |
| self.assertEqual(cmsg_type, socket.SCM_RIGHTS) |
| self.assertGreaterEqual(len(cmsg_data), mindata) |
| self.assertLessEqual(len(cmsg_data), maxdata) |
| fds = array.array("i") |
| fds.frombytes(cmsg_data[: |
| len(cmsg_data) - (len(cmsg_data) % fds.itemsize)]) |
| self.checkFDs(fds) |
| |
| def testCmsgTruncLen0(self): |
| self.checkTruncatedArray(ancbuf=socket.CMSG_LEN(0), maxdata=0) |
| |
| def _testCmsgTruncLen0(self): |
| self.createAndSendFDs(1) |
| |
| def testCmsgTruncLen0Plus1(self): |
| self.checkTruncatedArray(ancbuf=socket.CMSG_LEN(0) + 1, maxdata=1) |
| |
| def _testCmsgTruncLen0Plus1(self): |
| self.createAndSendFDs(2) |
| |
| def testCmsgTruncLen1(self): |
| self.checkTruncatedArray(ancbuf=socket.CMSG_LEN(SIZEOF_INT), |
| maxdata=SIZEOF_INT) |
| |
| def _testCmsgTruncLen1(self): |
| self.createAndSendFDs(2) |
| |
| def testCmsgTruncLen2Minus1(self): |
| self.checkTruncatedArray(ancbuf=socket.CMSG_LEN(2 * SIZEOF_INT) - 1, |
| maxdata=(2 * SIZEOF_INT) - 1) |
| |
| def _testCmsgTruncLen2Minus1(self): |
| self.createAndSendFDs(2) |
| |
| |
| class RFC3542AncillaryTest(SendrecvmsgServerTimeoutBase): |
| # Test sendmsg() and recvmsg[_into]() using the ancillary data |
| # features of the RFC 3542 Advanced Sockets API for IPv6. |
| # Currently we can only handle certain data items (e.g. traffic |
| # class, hop limit, MTU discovery and fragmentation settings) |
| # without resorting to unportable means such as the struct module, |
| # but the tests here are aimed at testing the ancillary data |
| # handling in sendmsg() and recvmsg() rather than the IPv6 API |
| # itself. |
| |
| # Test value to use when setting hop limit of packet |
| hop_limit = 2 |
| |
| # Test value to use when setting traffic class of packet. |
| # -1 means "use kernel default". |
| traffic_class = -1 |
| |
| def ancillaryMapping(self, ancdata): |
| # Given ancillary data list ancdata, return a mapping from |
| # pairs (cmsg_level, cmsg_type) to corresponding cmsg_data. |
| # Check that no (level, type) pair appears more than once. |
| d = {} |
| for cmsg_level, cmsg_type, cmsg_data in ancdata: |
| self.assertNotIn((cmsg_level, cmsg_type), d) |
| d[(cmsg_level, cmsg_type)] = cmsg_data |
| return d |
| |
| def checkHopLimit(self, ancbufsize, maxhop=255, ignoreflags=0): |
| # Receive hop limit into ancbufsize bytes of ancillary data |
| # space. Check that data is MSG, ancillary data is not |
| # truncated (but ignore any flags in ignoreflags), and hop |
| # limit is between 0 and maxhop inclusive. |
| self.serv_sock.setsockopt(socket.IPPROTO_IPV6, |
| socket.IPV6_RECVHOPLIMIT, 1) |
| self.misc_event.set() |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG), ancbufsize) |
| |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.checkFlags(flags, eor=True, checkunset=socket.MSG_CTRUNC, |
| ignore=ignoreflags) |
| |
| self.assertEqual(len(ancdata), 1) |
| self.assertIsInstance(ancdata[0], tuple) |
| cmsg_level, cmsg_type, cmsg_data = ancdata[0] |
| self.assertEqual(cmsg_level, socket.IPPROTO_IPV6) |
| self.assertEqual(cmsg_type, socket.IPV6_HOPLIMIT) |
| self.assertIsInstance(cmsg_data, bytes) |
| self.assertEqual(len(cmsg_data), SIZEOF_INT) |
| a = array.array("i") |
| a.frombytes(cmsg_data) |
| self.assertGreaterEqual(a[0], 0) |
| self.assertLessEqual(a[0], maxhop) |
| |
| @requireAttrs(socket, "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT") |
| def testRecvHopLimit(self): |
| # Test receiving the packet hop limit as ancillary data. |
| self.checkHopLimit(ancbufsize=10240) |
| |
| @testRecvHopLimit.client_skip |
| def _testRecvHopLimit(self): |
| # Need to wait until server has asked to receive ancillary |
| # data, as implementations are not required to buffer it |
| # otherwise. |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| @requireAttrs(socket, "CMSG_SPACE", "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT") |
| def testRecvHopLimitCMSG_SPACE(self): |
| # Test receiving hop limit, using CMSG_SPACE to calculate buffer size. |
| self.checkHopLimit(ancbufsize=socket.CMSG_SPACE(SIZEOF_INT)) |
| |
| @testRecvHopLimitCMSG_SPACE.client_skip |
| def _testRecvHopLimitCMSG_SPACE(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| # Could test receiving into buffer sized using CMSG_LEN, but RFC |
| # 3542 says portable applications must provide space for trailing |
| # padding. Implementations may set MSG_CTRUNC if there isn't |
| # enough space for the padding. |
| |
| @requireAttrs(socket.socket, "sendmsg") |
| @requireAttrs(socket, "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT") |
| def testSetHopLimit(self): |
| # Test setting hop limit on outgoing packet and receiving it |
| # at the other end. |
| self.checkHopLimit(ancbufsize=10240, maxhop=self.hop_limit) |
| |
| @testSetHopLimit.client_skip |
| def _testSetHopLimit(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.assertEqual( |
| self.sendmsgToServer([MSG], |
| [(socket.IPPROTO_IPV6, socket.IPV6_HOPLIMIT, |
| array.array("i", [self.hop_limit]))]), |
| len(MSG)) |
| |
| def checkTrafficClassAndHopLimit(self, ancbufsize, maxhop=255, |
| ignoreflags=0): |
| # Receive traffic class and hop limit into ancbufsize bytes of |
| # ancillary data space. Check that data is MSG, ancillary |
| # data is not truncated (but ignore any flags in ignoreflags), |
| # and traffic class and hop limit are in range (hop limit no |
| # more than maxhop). |
| self.serv_sock.setsockopt(socket.IPPROTO_IPV6, |
| socket.IPV6_RECVHOPLIMIT, 1) |
| self.serv_sock.setsockopt(socket.IPPROTO_IPV6, |
| socket.IPV6_RECVTCLASS, 1) |
| self.misc_event.set() |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG), ancbufsize) |
| |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.checkFlags(flags, eor=True, checkunset=socket.MSG_CTRUNC, |
| ignore=ignoreflags) |
| self.assertEqual(len(ancdata), 2) |
| ancmap = self.ancillaryMapping(ancdata) |
| |
| tcdata = ancmap[(socket.IPPROTO_IPV6, socket.IPV6_TCLASS)] |
| self.assertEqual(len(tcdata), SIZEOF_INT) |
| a = array.array("i") |
| a.frombytes(tcdata) |
| self.assertGreaterEqual(a[0], 0) |
| self.assertLessEqual(a[0], 255) |
| |
| hldata = ancmap[(socket.IPPROTO_IPV6, socket.IPV6_HOPLIMIT)] |
| self.assertEqual(len(hldata), SIZEOF_INT) |
| a = array.array("i") |
| a.frombytes(hldata) |
| self.assertGreaterEqual(a[0], 0) |
| self.assertLessEqual(a[0], maxhop) |
| |
| @requireAttrs(socket, "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT", |
| "IPV6_RECVTCLASS", "IPV6_TCLASS") |
| def testRecvTrafficClassAndHopLimit(self): |
| # Test receiving traffic class and hop limit as ancillary data. |
| self.checkTrafficClassAndHopLimit(ancbufsize=10240) |
| |
| @testRecvTrafficClassAndHopLimit.client_skip |
| def _testRecvTrafficClassAndHopLimit(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| @requireAttrs(socket, "CMSG_SPACE", "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT", |
| "IPV6_RECVTCLASS", "IPV6_TCLASS") |
| def testRecvTrafficClassAndHopLimitCMSG_SPACE(self): |
| # Test receiving traffic class and hop limit, using |
| # CMSG_SPACE() to calculate buffer size. |
| self.checkTrafficClassAndHopLimit( |
| ancbufsize=socket.CMSG_SPACE(SIZEOF_INT) * 2) |
| |
| @testRecvTrafficClassAndHopLimitCMSG_SPACE.client_skip |
| def _testRecvTrafficClassAndHopLimitCMSG_SPACE(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| @requireAttrs(socket.socket, "sendmsg") |
| @requireAttrs(socket, "CMSG_SPACE", "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT", |
| "IPV6_RECVTCLASS", "IPV6_TCLASS") |
| def testSetTrafficClassAndHopLimit(self): |
| # Test setting traffic class and hop limit on outgoing packet, |
| # and receiving them at the other end. |
| self.checkTrafficClassAndHopLimit(ancbufsize=10240, |
| maxhop=self.hop_limit) |
| |
| @testSetTrafficClassAndHopLimit.client_skip |
| def _testSetTrafficClassAndHopLimit(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.assertEqual( |
| self.sendmsgToServer([MSG], |
| [(socket.IPPROTO_IPV6, socket.IPV6_TCLASS, |
| array.array("i", [self.traffic_class])), |
| (socket.IPPROTO_IPV6, socket.IPV6_HOPLIMIT, |
| array.array("i", [self.hop_limit]))]), |
| len(MSG)) |
| |
| @requireAttrs(socket.socket, "sendmsg") |
| @requireAttrs(socket, "CMSG_SPACE", "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT", |
| "IPV6_RECVTCLASS", "IPV6_TCLASS") |
| def testOddCmsgSize(self): |
| # Try to send ancillary data with first item one byte too |
| # long. Fall back to sending with correct size if this fails, |
| # and check that second item was handled correctly. |
| self.checkTrafficClassAndHopLimit(ancbufsize=10240, |
| maxhop=self.hop_limit) |
| |
| @testOddCmsgSize.client_skip |
| def _testOddCmsgSize(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| try: |
| nbytes = self.sendmsgToServer( |
| [MSG], |
| [(socket.IPPROTO_IPV6, socket.IPV6_TCLASS, |
| array.array("i", [self.traffic_class]).tobytes() + b"\x00"), |
| (socket.IPPROTO_IPV6, socket.IPV6_HOPLIMIT, |
| array.array("i", [self.hop_limit]))]) |
| except OSError as e: |
| self.assertIsInstance(e.errno, int) |
| nbytes = self.sendmsgToServer( |
| [MSG], |
| [(socket.IPPROTO_IPV6, socket.IPV6_TCLASS, |
| array.array("i", [self.traffic_class])), |
| (socket.IPPROTO_IPV6, socket.IPV6_HOPLIMIT, |
| array.array("i", [self.hop_limit]))]) |
| self.assertEqual(nbytes, len(MSG)) |
| |
| # Tests for proper handling of truncated ancillary data |
| |
| def checkHopLimitTruncatedHeader(self, ancbufsize, ignoreflags=0): |
| # Receive hop limit into ancbufsize bytes of ancillary data |
| # space, which should be too small to contain the ancillary |
| # data header (if ancbufsize is None, pass no second argument |
| # to recvmsg()). Check that data is MSG, MSG_CTRUNC is set |
| # (unless included in ignoreflags), and no ancillary data is |
| # returned. |
| self.serv_sock.setsockopt(socket.IPPROTO_IPV6, |
| socket.IPV6_RECVHOPLIMIT, 1) |
| self.misc_event.set() |
| args = () if ancbufsize is None else (ancbufsize,) |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG), *args) |
| |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.assertEqual(ancdata, []) |
| self.checkFlags(flags, eor=True, checkset=socket.MSG_CTRUNC, |
| ignore=ignoreflags) |
| |
| @requireAttrs(socket, "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT") |
| def testCmsgTruncNoBufSize(self): |
| # Check that no ancillary data is received when no ancillary |
| # buffer size is provided. |
| self.checkHopLimitTruncatedHeader(ancbufsize=None, |
| # BSD seems to set |
| # MSG_CTRUNC only if an item |
| # has been partially |
| # received. |
| ignoreflags=socket.MSG_CTRUNC) |
| |
| @testCmsgTruncNoBufSize.client_skip |
| def _testCmsgTruncNoBufSize(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| @requireAttrs(socket, "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT") |
| def testSingleCmsgTrunc0(self): |
| # Check that no ancillary data is received when ancillary |
| # buffer size is zero. |
| self.checkHopLimitTruncatedHeader(ancbufsize=0, |
| ignoreflags=socket.MSG_CTRUNC) |
| |
| @testSingleCmsgTrunc0.client_skip |
| def _testSingleCmsgTrunc0(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| # Check that no ancillary data is returned for various non-zero |
| # (but still too small) buffer sizes. |
| |
| @requireAttrs(socket, "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT") |
| def testSingleCmsgTrunc1(self): |
| self.checkHopLimitTruncatedHeader(ancbufsize=1) |
| |
| @testSingleCmsgTrunc1.client_skip |
| def _testSingleCmsgTrunc1(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| @requireAttrs(socket, "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT") |
| def testSingleCmsgTrunc2Int(self): |
| self.checkHopLimitTruncatedHeader(ancbufsize=2 * SIZEOF_INT) |
| |
| @testSingleCmsgTrunc2Int.client_skip |
| def _testSingleCmsgTrunc2Int(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| @requireAttrs(socket, "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT") |
| def testSingleCmsgTruncLen0Minus1(self): |
| self.checkHopLimitTruncatedHeader(ancbufsize=socket.CMSG_LEN(0) - 1) |
| |
| @testSingleCmsgTruncLen0Minus1.client_skip |
| def _testSingleCmsgTruncLen0Minus1(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| @requireAttrs(socket, "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT") |
| def testSingleCmsgTruncInData(self): |
| # Test truncation of a control message inside its associated |
| # data. The message may be returned with its data truncated, |
| # or not returned at all. |
| self.serv_sock.setsockopt(socket.IPPROTO_IPV6, |
| socket.IPV6_RECVHOPLIMIT, 1) |
| self.misc_event.set() |
| msg, ancdata, flags, addr = self.doRecvmsg( |
| self.serv_sock, len(MSG), socket.CMSG_LEN(SIZEOF_INT) - 1) |
| |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.checkFlags(flags, eor=True, checkset=socket.MSG_CTRUNC) |
| |
| self.assertLessEqual(len(ancdata), 1) |
| if ancdata: |
| cmsg_level, cmsg_type, cmsg_data = ancdata[0] |
| self.assertEqual(cmsg_level, socket.IPPROTO_IPV6) |
| self.assertEqual(cmsg_type, socket.IPV6_HOPLIMIT) |
| self.assertLess(len(cmsg_data), SIZEOF_INT) |
| |
| @testSingleCmsgTruncInData.client_skip |
| def _testSingleCmsgTruncInData(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| def checkTruncatedSecondHeader(self, ancbufsize, ignoreflags=0): |
| # Receive traffic class and hop limit into ancbufsize bytes of |
| # ancillary data space, which should be large enough to |
| # contain the first item, but too small to contain the header |
| # of the second. Check that data is MSG, MSG_CTRUNC is set |
| # (unless included in ignoreflags), and only one ancillary |
| # data item is returned. |
| self.serv_sock.setsockopt(socket.IPPROTO_IPV6, |
| socket.IPV6_RECVHOPLIMIT, 1) |
| self.serv_sock.setsockopt(socket.IPPROTO_IPV6, |
| socket.IPV6_RECVTCLASS, 1) |
| self.misc_event.set() |
| msg, ancdata, flags, addr = self.doRecvmsg(self.serv_sock, |
| len(MSG), ancbufsize) |
| |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.checkFlags(flags, eor=True, checkset=socket.MSG_CTRUNC, |
| ignore=ignoreflags) |
| |
| self.assertEqual(len(ancdata), 1) |
| cmsg_level, cmsg_type, cmsg_data = ancdata[0] |
| self.assertEqual(cmsg_level, socket.IPPROTO_IPV6) |
| self.assertIn(cmsg_type, {socket.IPV6_TCLASS, socket.IPV6_HOPLIMIT}) |
| self.assertEqual(len(cmsg_data), SIZEOF_INT) |
| a = array.array("i") |
| a.frombytes(cmsg_data) |
| self.assertGreaterEqual(a[0], 0) |
| self.assertLessEqual(a[0], 255) |
| |
| # Try the above test with various buffer sizes. |
| |
| @requireAttrs(socket, "CMSG_SPACE", "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT", |
| "IPV6_RECVTCLASS", "IPV6_TCLASS") |
| def testSecondCmsgTrunc0(self): |
| self.checkTruncatedSecondHeader(socket.CMSG_SPACE(SIZEOF_INT), |
| ignoreflags=socket.MSG_CTRUNC) |
| |
| @testSecondCmsgTrunc0.client_skip |
| def _testSecondCmsgTrunc0(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| @requireAttrs(socket, "CMSG_SPACE", "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT", |
| "IPV6_RECVTCLASS", "IPV6_TCLASS") |
| def testSecondCmsgTrunc1(self): |
| self.checkTruncatedSecondHeader(socket.CMSG_SPACE(SIZEOF_INT) + 1) |
| |
| @testSecondCmsgTrunc1.client_skip |
| def _testSecondCmsgTrunc1(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| @requireAttrs(socket, "CMSG_SPACE", "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT", |
| "IPV6_RECVTCLASS", "IPV6_TCLASS") |
| def testSecondCmsgTrunc2Int(self): |
| self.checkTruncatedSecondHeader(socket.CMSG_SPACE(SIZEOF_INT) + |
| 2 * SIZEOF_INT) |
| |
| @testSecondCmsgTrunc2Int.client_skip |
| def _testSecondCmsgTrunc2Int(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| @requireAttrs(socket, "CMSG_SPACE", "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT", |
| "IPV6_RECVTCLASS", "IPV6_TCLASS") |
| def testSecondCmsgTruncLen0Minus1(self): |
| self.checkTruncatedSecondHeader(socket.CMSG_SPACE(SIZEOF_INT) + |
| socket.CMSG_LEN(0) - 1) |
| |
| @testSecondCmsgTruncLen0Minus1.client_skip |
| def _testSecondCmsgTruncLen0Minus1(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| @requireAttrs(socket, "CMSG_SPACE", "IPV6_RECVHOPLIMIT", "IPV6_HOPLIMIT", |
| "IPV6_RECVTCLASS", "IPV6_TCLASS") |
| def testSecomdCmsgTruncInData(self): |
| # Test truncation of the second of two control messages inside |
| # its associated data. |
| self.serv_sock.setsockopt(socket.IPPROTO_IPV6, |
| socket.IPV6_RECVHOPLIMIT, 1) |
| self.serv_sock.setsockopt(socket.IPPROTO_IPV6, |
| socket.IPV6_RECVTCLASS, 1) |
| self.misc_event.set() |
| msg, ancdata, flags, addr = self.doRecvmsg( |
| self.serv_sock, len(MSG), |
| socket.CMSG_SPACE(SIZEOF_INT) + socket.CMSG_LEN(SIZEOF_INT) - 1) |
| |
| self.assertEqual(msg, MSG) |
| self.checkRecvmsgAddress(addr, self.cli_addr) |
| self.checkFlags(flags, eor=True, checkset=socket.MSG_CTRUNC) |
| |
| cmsg_types = {socket.IPV6_TCLASS, socket.IPV6_HOPLIMIT} |
| |
| cmsg_level, cmsg_type, cmsg_data = ancdata.pop(0) |
| self.assertEqual(cmsg_level, socket.IPPROTO_IPV6) |
| cmsg_types.remove(cmsg_type) |
| self.assertEqual(len(cmsg_data), SIZEOF_INT) |
| a = array.array("i") |
| a.frombytes(cmsg_data) |
| self.assertGreaterEqual(a[0], 0) |
| self.assertLessEqual(a[0], 255) |
| |
| if ancdata: |
| cmsg_level, cmsg_type, cmsg_data = ancdata.pop(0) |
| self.assertEqual(cmsg_level, socket.IPPROTO_IPV6) |
| cmsg_types.remove(cmsg_type) |
| self.assertLess(len(cmsg_data), SIZEOF_INT) |
| |
| self.assertEqual(ancdata, []) |
| |
| @testSecomdCmsgTruncInData.client_skip |
| def _testSecomdCmsgTruncInData(self): |
| self.assertTrue(self.misc_event.wait(timeout=self.fail_timeout)) |
| self.sendToServer(MSG) |
| |
| |
| # Derive concrete test classes for different socket types. |
| |
| class SendrecvmsgUDPTestBase(SendrecvmsgDgramFlagsBase, |
| SendrecvmsgConnectionlessBase, |
| ThreadedSocketTestMixin, UDPTestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "sendmsg") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class SendmsgUDPTest(SendmsgConnectionlessTests, SendrecvmsgUDPTestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "recvmsg") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RecvmsgUDPTest(RecvmsgTests, SendrecvmsgUDPTestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "recvmsg_into") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RecvmsgIntoUDPTest(RecvmsgIntoTests, SendrecvmsgUDPTestBase): |
| pass |
| |
| |
| class SendrecvmsgUDP6TestBase(SendrecvmsgDgramFlagsBase, |
| SendrecvmsgConnectionlessBase, |
| ThreadedSocketTestMixin, UDP6TestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "sendmsg") |
| @unittest.skipUnless(support.IPV6_ENABLED, 'IPv6 required for this test.') |
| @requireSocket("AF_INET6", "SOCK_DGRAM") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class SendmsgUDP6Test(SendmsgConnectionlessTests, SendrecvmsgUDP6TestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "recvmsg") |
| @unittest.skipUnless(support.IPV6_ENABLED, 'IPv6 required for this test.') |
| @requireSocket("AF_INET6", "SOCK_DGRAM") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RecvmsgUDP6Test(RecvmsgTests, SendrecvmsgUDP6TestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "recvmsg_into") |
| @unittest.skipUnless(support.IPV6_ENABLED, 'IPv6 required for this test.') |
| @requireSocket("AF_INET6", "SOCK_DGRAM") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RecvmsgIntoUDP6Test(RecvmsgIntoTests, SendrecvmsgUDP6TestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "recvmsg") |
| @unittest.skipUnless(support.IPV6_ENABLED, 'IPv6 required for this test.') |
| @requireAttrs(socket, "IPPROTO_IPV6") |
| @requireSocket("AF_INET6", "SOCK_DGRAM") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RecvmsgRFC3542AncillaryUDP6Test(RFC3542AncillaryTest, |
| SendrecvmsgUDP6TestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "recvmsg_into") |
| @unittest.skipUnless(support.IPV6_ENABLED, 'IPv6 required for this test.') |
| @requireAttrs(socket, "IPPROTO_IPV6") |
| @requireSocket("AF_INET6", "SOCK_DGRAM") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RecvmsgIntoRFC3542AncillaryUDP6Test(RecvmsgIntoMixin, |
| RFC3542AncillaryTest, |
| SendrecvmsgUDP6TestBase): |
| pass |
| |
| |
| class SendrecvmsgTCPTestBase(SendrecvmsgConnectedBase, |
| ConnectedStreamTestMixin, TCPTestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "sendmsg") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class SendmsgTCPTest(SendmsgStreamTests, SendrecvmsgTCPTestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "recvmsg") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RecvmsgTCPTest(RecvmsgTests, RecvmsgGenericStreamTests, |
| SendrecvmsgTCPTestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "recvmsg_into") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RecvmsgIntoTCPTest(RecvmsgIntoTests, RecvmsgGenericStreamTests, |
| SendrecvmsgTCPTestBase): |
| pass |
| |
| |
| class SendrecvmsgSCTPStreamTestBase(SendrecvmsgSCTPFlagsBase, |
| SendrecvmsgConnectedBase, |
| ConnectedStreamTestMixin, SCTPStreamBase): |
| pass |
| |
| @requireAttrs(socket.socket, "sendmsg") |
| @requireSocket("AF_INET", "SOCK_STREAM", "IPPROTO_SCTP") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class SendmsgSCTPStreamTest(SendmsgStreamTests, SendrecvmsgSCTPStreamTestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "recvmsg") |
| @requireSocket("AF_INET", "SOCK_STREAM", "IPPROTO_SCTP") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RecvmsgSCTPStreamTest(RecvmsgTests, RecvmsgGenericStreamTests, |
| SendrecvmsgSCTPStreamTestBase): |
| |
| def testRecvmsgEOF(self): |
| try: |
| super(RecvmsgSCTPStreamTest, self).testRecvmsgEOF() |
| except OSError as e: |
| if e.errno != errno.ENOTCONN: |
| raise |
| self.skipTest("sporadic ENOTCONN (kernel issue?) - see issue #13876") |
| |
| @requireAttrs(socket.socket, "recvmsg_into") |
| @requireSocket("AF_INET", "SOCK_STREAM", "IPPROTO_SCTP") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RecvmsgIntoSCTPStreamTest(RecvmsgIntoTests, RecvmsgGenericStreamTests, |
| SendrecvmsgSCTPStreamTestBase): |
| |
| def testRecvmsgEOF(self): |
| try: |
| super(RecvmsgIntoSCTPStreamTest, self).testRecvmsgEOF() |
| except OSError as e: |
| if e.errno != errno.ENOTCONN: |
| raise |
| self.skipTest("sporadic ENOTCONN (kernel issue?) - see issue #13876") |
| |
| |
| class SendrecvmsgUnixStreamTestBase(SendrecvmsgConnectedBase, |
| ConnectedStreamTestMixin, UnixStreamBase): |
| pass |
| |
| @requireAttrs(socket.socket, "sendmsg") |
| @requireAttrs(socket, "AF_UNIX") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class SendmsgUnixStreamTest(SendmsgStreamTests, SendrecvmsgUnixStreamTestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "recvmsg") |
| @requireAttrs(socket, "AF_UNIX") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RecvmsgUnixStreamTest(RecvmsgTests, RecvmsgGenericStreamTests, |
| SendrecvmsgUnixStreamTestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "recvmsg_into") |
| @requireAttrs(socket, "AF_UNIX") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RecvmsgIntoUnixStreamTest(RecvmsgIntoTests, RecvmsgGenericStreamTests, |
| SendrecvmsgUnixStreamTestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "sendmsg", "recvmsg") |
| @requireAttrs(socket, "AF_UNIX", "SOL_SOCKET", "SCM_RIGHTS") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RecvmsgSCMRightsStreamTest(SCMRightsTest, SendrecvmsgUnixStreamTestBase): |
| pass |
| |
| @requireAttrs(socket.socket, "sendmsg", "recvmsg_into") |
| @requireAttrs(socket, "AF_UNIX", "SOL_SOCKET", "SCM_RIGHTS") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class RecvmsgIntoSCMRightsStreamTest(RecvmsgIntoMixin, SCMRightsTest, |
| SendrecvmsgUnixStreamTestBase): |
| pass |
| |
| |
| # Test interrupting the interruptible send/receive methods with a |
| # signal when a timeout is set. These tests avoid having multiple |
| # threads alive during the test so that the OS cannot deliver the |
| # signal to the wrong one. |
| |
| class InterruptedTimeoutBase(unittest.TestCase): |
| # Base class for interrupted send/receive tests. Installs an |
| # empty handler for SIGALRM and removes it on teardown, along with |
| # any scheduled alarms. |
| |
| def setUp(self): |
| super().setUp() |
| orig_alrm_handler = signal.signal(signal.SIGALRM, |
| lambda signum, frame: None) |
| self.addCleanup(signal.signal, signal.SIGALRM, orig_alrm_handler) |
| self.addCleanup(self.setAlarm, 0) |
| |
| # Timeout for socket operations |
| timeout = 4.0 |
| |
| # Provide setAlarm() method to schedule delivery of SIGALRM after |
| # given number of seconds, or cancel it if zero, and an |
| # appropriate time value to use. Use setitimer() if available. |
| if hasattr(signal, "setitimer"): |
| alarm_time = 0.05 |
| |
| def setAlarm(self, seconds): |
| signal.setitimer(signal.ITIMER_REAL, seconds) |
| else: |
| # Old systems may deliver the alarm up to one second early |
| alarm_time = 2 |
| |
| def setAlarm(self, seconds): |
| signal.alarm(seconds) |
| |
| |
| # Require siginterrupt() in order to ensure that system calls are |
| # interrupted by default. |
| @requireAttrs(signal, "siginterrupt") |
| @unittest.skipUnless(hasattr(signal, "alarm") or hasattr(signal, "setitimer"), |
| "Don't have signal.alarm or signal.setitimer") |
| class InterruptedRecvTimeoutTest(InterruptedTimeoutBase, UDPTestBase): |
| # Test interrupting the recv*() methods with signals when a |
| # timeout is set. |
| |
| def setUp(self): |
| super().setUp() |
| self.serv.settimeout(self.timeout) |
| |
| def checkInterruptedRecv(self, func, *args, **kwargs): |
| # Check that func(*args, **kwargs) raises OSError with an |
| # errno of EINTR when interrupted by a signal. |
| self.setAlarm(self.alarm_time) |
| with self.assertRaises(OSError) as cm: |
| func(*args, **kwargs) |
| self.assertNotIsInstance(cm.exception, socket.timeout) |
| self.assertEqual(cm.exception.errno, errno.EINTR) |
| |
| def testInterruptedRecvTimeout(self): |
| self.checkInterruptedRecv(self.serv.recv, 1024) |
| |
| def testInterruptedRecvIntoTimeout(self): |
| self.checkInterruptedRecv(self.serv.recv_into, bytearray(1024)) |
| |
| def testInterruptedRecvfromTimeout(self): |
| self.checkInterruptedRecv(self.serv.recvfrom, 1024) |
| |
| def testInterruptedRecvfromIntoTimeout(self): |
| self.checkInterruptedRecv(self.serv.recvfrom_into, bytearray(1024)) |
| |
| @requireAttrs(socket.socket, "recvmsg") |
| def testInterruptedRecvmsgTimeout(self): |
| self.checkInterruptedRecv(self.serv.recvmsg, 1024) |
| |
| @requireAttrs(socket.socket, "recvmsg_into") |
| def testInterruptedRecvmsgIntoTimeout(self): |
| self.checkInterruptedRecv(self.serv.recvmsg_into, [bytearray(1024)]) |
| |
| |
| # Require siginterrupt() in order to ensure that system calls are |
| # interrupted by default. |
| @requireAttrs(signal, "siginterrupt") |
| @unittest.skipUnless(hasattr(signal, "alarm") or hasattr(signal, "setitimer"), |
| "Don't have signal.alarm or signal.setitimer") |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class InterruptedSendTimeoutTest(InterruptedTimeoutBase, |
| ThreadSafeCleanupTestCase, |
| SocketListeningTestMixin, TCPTestBase): |
| # Test interrupting the interruptible send*() methods with signals |
| # when a timeout is set. |
| |
| def setUp(self): |
| super().setUp() |
| self.serv_conn = self.newSocket() |
| self.addCleanup(self.serv_conn.close) |
| # Use a thread to complete the connection, but wait for it to |
| # terminate before running the test, so that there is only one |
| # thread to accept the signal. |
| cli_thread = threading.Thread(target=self.doConnect) |
| cli_thread.start() |
| self.cli_conn, addr = self.serv.accept() |
| self.addCleanup(self.cli_conn.close) |
| cli_thread.join() |
| self.serv_conn.settimeout(self.timeout) |
| |
| def doConnect(self): |
| self.serv_conn.connect(self.serv_addr) |
| |
| def checkInterruptedSend(self, func, *args, **kwargs): |
| # Check that func(*args, **kwargs), run in a loop, raises |
| # OSError with an errno of EINTR when interrupted by a |
| # signal. |
| with self.assertRaises(OSError) as cm: |
| while True: |
| self.setAlarm(self.alarm_time) |
| func(*args, **kwargs) |
| self.assertNotIsInstance(cm.exception, socket.timeout) |
| self.assertEqual(cm.exception.errno, errno.EINTR) |
| |
| # Issue #12958: The following tests have problems on Mac OS X |
| @support.anticipate_failure(sys.platform == "darwin") |
| def testInterruptedSendTimeout(self): |
| self.checkInterruptedSend(self.serv_conn.send, b"a"*512) |
| |
| @support.anticipate_failure(sys.platform == "darwin") |
| def testInterruptedSendtoTimeout(self): |
| # Passing an actual address here as Python's wrapper for |
| # sendto() doesn't allow passing a zero-length one; POSIX |
| # requires that the address is ignored since the socket is |
| # connection-mode, however. |
| self.checkInterruptedSend(self.serv_conn.sendto, b"a"*512, |
| self.serv_addr) |
| |
| @support.anticipate_failure(sys.platform == "darwin") |
| @requireAttrs(socket.socket, "sendmsg") |
| def testInterruptedSendmsgTimeout(self): |
| self.checkInterruptedSend(self.serv_conn.sendmsg, [b"a"*512]) |
| |
| |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class TCPCloserTest(ThreadedTCPSocketTest): |
| |
| def testClose(self): |
| conn, addr = self.serv.accept() |
| conn.close() |
| |
| sd = self.cli |
| read, write, err = select.select([sd], [], [], 1.0) |
| self.assertEqual(read, [sd]) |
| self.assertEqual(sd.recv(1), b'') |
| |
| # Calling close() many times should be safe. |
| conn.close() |
| conn.close() |
| |
| def _testClose(self): |
| self.cli.connect((HOST, self.port)) |
| time.sleep(1.0) |
| |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class BasicSocketPairTest(SocketPairTest): |
| |
| def __init__(self, methodName='runTest'): |
| SocketPairTest.__init__(self, methodName=methodName) |
| |
| def _check_defaults(self, sock): |
| self.assertIsInstance(sock, socket.socket) |
| if hasattr(socket, 'AF_UNIX'): |
| self.assertEqual(sock.family, socket.AF_UNIX) |
| else: |
| self.assertEqual(sock.family, socket.AF_INET) |
| self.assertEqual(sock.type, socket.SOCK_STREAM) |
| self.assertEqual(sock.proto, 0) |
| |
| def _testDefaults(self): |
| self._check_defaults(self.cli) |
| |
| def testDefaults(self): |
| self._check_defaults(self.serv) |
| |
| def testRecv(self): |
| msg = self.serv.recv(1024) |
| self.assertEqual(msg, MSG) |
| |
| def _testRecv(self): |
| self.cli.send(MSG) |
| |
| def testSend(self): |
| self.serv.send(MSG) |
| |
| def _testSend(self): |
| msg = self.cli.recv(1024) |
| self.assertEqual(msg, MSG) |
| |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class NonBlockingTCPTests(ThreadedTCPSocketTest): |
| |
| def __init__(self, methodName='runTest'): |
| ThreadedTCPSocketTest.__init__(self, methodName=methodName) |
| |
| def testSetBlocking(self): |
| # Testing whether set blocking works |
| self.serv.setblocking(True) |
| self.assertIsNone(self.serv.gettimeout()) |
| self.serv.setblocking(False) |
| self.assertEqual(self.serv.gettimeout(), 0.0) |
| start = time.time() |
| try: |
| self.serv.accept() |
| except OSError: |
| pass |
| end = time.time() |
| self.assertTrue((end - start) < 1.0, "Error setting non-blocking mode.") |
| # Issue 15989 |
| if _testcapi.UINT_MAX < _testcapi.ULONG_MAX: |
| self.serv.setblocking(_testcapi.UINT_MAX + 1) |
| self.assertIsNone(self.serv.gettimeout()) |
| |
| def _testSetBlocking(self): |
| pass |
| |
| if hasattr(socket, "SOCK_NONBLOCK"): |
| @support.requires_linux_version(2, 6, 28) |
| def testInitNonBlocking(self): |
| # reinit server socket |
| self.serv.close() |
| self.serv = socket.socket(socket.AF_INET, socket.SOCK_STREAM | |
| socket.SOCK_NONBLOCK) |
| self.port = support.bind_port(self.serv) |
| self.serv.listen(1) |
| # actual testing |
| start = time.time() |
| try: |
| self.serv.accept() |
| except OSError: |
| pass |
| end = time.time() |
| self.assertTrue((end - start) < 1.0, "Error creating with non-blocking mode.") |
| |
| def _testInitNonBlocking(self): |
| pass |
| |
| def testInheritFlags(self): |
| # Issue #7995: when calling accept() on a listening socket with a |
| # timeout, the resulting socket should not be non-blocking. |
| self.serv.settimeout(10) |
| try: |
| conn, addr = self.serv.accept() |
| message = conn.recv(len(MSG)) |
| finally: |
| conn.close() |
| self.serv.settimeout(None) |
| |
| def _testInheritFlags(self): |
| time.sleep(0.1) |
| self.cli.connect((HOST, self.port)) |
| time.sleep(0.5) |
| self.cli.send(MSG) |
| |
| def testAccept(self): |
| # Testing non-blocking accept |
| self.serv.setblocking(0) |
| try: |
| conn, addr = self.serv.accept() |
| except OSError: |
| pass |
| else: |
| self.fail("Error trying to do non-blocking accept.") |
| read, write, err = select.select([self.serv], [], []) |
| if self.serv in read: |
| conn, addr = self.serv.accept() |
| conn.close() |
| else: |
| self.fail("Error trying to do accept after select.") |
| |
| def _testAccept(self): |
| time.sleep(0.1) |
| self.cli.connect((HOST, self.port)) |
| |
| def testConnect(self): |
| # Testing non-blocking connect |
| conn, addr = self.serv.accept() |
| conn.close() |
| |
| def _testConnect(self): |
| self.cli.settimeout(10) |
| self.cli.connect((HOST, self.port)) |
| |
| def testRecv(self): |
| # Testing non-blocking recv |
| conn, addr = self.serv.accept() |
| conn.setblocking(0) |
| try: |
| msg = conn.recv(len(MSG)) |
| except OSError: |
| pass |
| else: |
| self.fail("Error trying to do non-blocking recv.") |
| read, write, err = select.select([conn], [], []) |
| if conn in read: |
| msg = conn.recv(len(MSG)) |
| conn.close() |
| self.assertEqual(msg, MSG) |
| else: |
| self.fail("Error during select call to non-blocking socket.") |
| |
| def _testRecv(self): |
| self.cli.connect((HOST, self.port)) |
| time.sleep(0.1) |
| self.cli.send(MSG) |
| |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class FileObjectClassTestCase(SocketConnectedTest): |
| """Unit tests for the object returned by socket.makefile() |
| |
| self.read_file is the io object returned by makefile() on |
| the client connection. You can read from this file to |
| get output from the server. |
| |
| self.write_file is the io object returned by makefile() on the |
| server connection. You can write to this file to send output |
| to the client. |
| """ |
| |
| bufsize = -1 # Use default buffer size |
| encoding = 'utf-8' |
| errors = 'strict' |
| newline = None |
| |
| read_mode = 'rb' |
| read_msg = MSG |
| write_mode = 'wb' |
| write_msg = MSG |
| |
| def __init__(self, methodName='runTest'): |
| SocketConnectedTest.__init__(self, methodName=methodName) |
| |
| def setUp(self): |
| self.evt1, self.evt2, self.serv_finished, self.cli_finished = [ |
| threading.Event() for i in range(4)] |
| SocketConnectedTest.setUp(self) |
| self.read_file = self.cli_conn.makefile( |
| self.read_mode, self.bufsize, |
| encoding = self.encoding, |
| errors = self.errors, |
| newline = self.newline) |
| |
| def tearDown(self): |
| self.serv_finished.set() |
| self.read_file.close() |
| self.assertTrue(self.read_file.closed) |
| self.read_file = None |
| SocketConnectedTest.tearDown(self) |
| |
| def clientSetUp(self): |
| SocketConnectedTest.clientSetUp(self) |
| self.write_file = self.serv_conn.makefile( |
| self.write_mode, self.bufsize, |
| encoding = self.encoding, |
| errors = self.errors, |
| newline = self.newline) |
| |
| def clientTearDown(self): |
| self.cli_finished.set() |
| self.write_file.close() |
| self.assertTrue(self.write_file.closed) |
| self.write_file = None |
| SocketConnectedTest.clientTearDown(self) |
| |
| def testReadAfterTimeout(self): |
| # Issue #7322: A file object must disallow further reads |
| # after a timeout has occurred. |
| self.cli_conn.settimeout(1) |
| self.read_file.read(3) |
| # First read raises a timeout |
| self.assertRaises(socket.timeout, self.read_file.read, 1) |
| # Second read is disallowed |
| with self.assertRaises(OSError) as ctx: |
| self.read_file.read(1) |
| self.assertIn("cannot read from timed out object", str(ctx.exception)) |
| |
| def _testReadAfterTimeout(self): |
| self.write_file.write(self.write_msg[0:3]) |
| self.write_file.flush() |
| self.serv_finished.wait() |
| |
| def testSmallRead(self): |
| # Performing small file read test |
| first_seg = self.read_file.read(len(self.read_msg)-3) |
| second_seg = self.read_file.read(3) |
| msg = first_seg + second_seg |
| self.assertEqual(msg, self.read_msg) |
| |
| def _testSmallRead(self): |
| self.write_file.write(self.write_msg) |
| self.write_file.flush() |
| |
| def testFullRead(self): |
| # read until EOF |
| msg = self.read_file.read() |
| self.assertEqual(msg, self.read_msg) |
| |
| def _testFullRead(self): |
| self.write_file.write(self.write_msg) |
| self.write_file.close() |
| |
| def testUnbufferedRead(self): |
| # Performing unbuffered file read test |
| buf = type(self.read_msg)() |
| while 1: |
| char = self.read_file.read(1) |
| if not char: |
| break |
| buf += char |
| self.assertEqual(buf, self.read_msg) |
| |
| def _testUnbufferedRead(self): |
| self.write_file.write(self.write_msg) |
| self.write_file.flush() |
| |
| def testReadline(self): |
| # Performing file readline test |
| line = self.read_file.readline() |
| self.assertEqual(line, self.read_msg) |
| |
| def _testReadline(self): |
| self.write_file.write(self.write_msg) |
| self.write_file.flush() |
| |
| def testCloseAfterMakefile(self): |
| # The file returned by makefile should keep the socket open. |
| self.cli_conn.close() |
| # read until EOF |
| msg = self.read_file.read() |
| self.assertEqual(msg, self.read_msg) |
| |
| def _testCloseAfterMakefile(self): |
| self.write_file.write(self.write_msg) |
| self.write_file.flush() |
| |
| def testMakefileAfterMakefileClose(self): |
| self.read_file.close() |
| msg = self.cli_conn.recv(len(MSG)) |
| if isinstance(self.read_msg, str): |
| msg = msg.decode() |
| self.assertEqual(msg, self.read_msg) |
| |
| def _testMakefileAfterMakefileClose(self): |
| self.write_file.write(self.write_msg) |
| self.write_file.flush() |
| |
| def testClosedAttr(self): |
| self.assertTrue(not self.read_file.closed) |
| |
| def _testClosedAttr(self): |
| self.assertTrue(not self.write_file.closed) |
| |
| def testAttributes(self): |
| self.assertEqual(self.read_file.mode, self.read_mode) |
| self.assertEqual(self.read_file.name, self.cli_conn.fileno()) |
| |
| def _testAttributes(self): |
| self.assertEqual(self.write_file.mode, self.write_mode) |
| self.assertEqual(self.write_file.name, self.serv_conn.fileno()) |
| |
| def testRealClose(self): |
| self.read_file.close() |
| self.assertRaises(ValueError, self.read_file.fileno) |
| self.cli_conn.close() |
| self.assertRaises(OSError, self.cli_conn.getsockname) |
| |
| def _testRealClose(self): |
| pass |
| |
| |
| class FileObjectInterruptedTestCase(unittest.TestCase): |
| """Test that the file object correctly handles EINTR internally.""" |
| |
| class MockSocket(object): |
| def __init__(self, recv_funcs=()): |
| # A generator that returns callables that we'll call for each |
| # call to recv(). |
| self._recv_step = iter(recv_funcs) |
| |
| def recv_into(self, buffer): |
| data = next(self._recv_step)() |
| assert len(buffer) >= len(data) |
| buffer[:len(data)] = data |
| return len(data) |
| |
| def _decref_socketios(self): |
| pass |
| |
| def _textiowrap_for_test(self, buffering=-1): |
| raw = socket.SocketIO(self, "r") |
| if buffering < 0: |
| buffering = io.DEFAULT_BUFFER_SIZE |
| if buffering == 0: |
| return raw |
| buffer = io.BufferedReader(raw, buffering) |
| text = io.TextIOWrapper(buffer, None, None) |
| text.mode = "rb" |
| return text |
| |
| @staticmethod |
| def _raise_eintr(): |
| raise OSError(errno.EINTR, "interrupted") |
| |
| def _textiowrap_mock_socket(self, mock, buffering=-1): |
| raw = socket.SocketIO(mock, "r") |
| if buffering < 0: |
| buffering = io.DEFAULT_BUFFER_SIZE |
| if buffering == 0: |
| return raw |
| buffer = io.BufferedReader(raw, buffering) |
| text = io.TextIOWrapper(buffer, None, None) |
| text.mode = "rb" |
| return text |
| |
| def _test_readline(self, size=-1, buffering=-1): |
| mock_sock = self.MockSocket(recv_funcs=[ |
| lambda : b"This is the first line\nAnd the sec", |
| self._raise_eintr, |
| lambda : b"ond line is here\n", |
| lambda : b"", |
| lambda : b"", # XXX(gps): io library does an extra EOF read |
| ]) |
| fo = mock_sock._textiowrap_for_test(buffering=buffering) |
| self.assertEqual(fo.readline(size), "This is the first line\n") |
| self.assertEqual(fo.readline(size), "And the second line is here\n") |
| |
| def _test_read(self, size=-1, buffering=-1): |
| mock_sock = self.MockSocket(recv_funcs=[ |
| lambda : b"This is the first line\nAnd the sec", |
| self._raise_eintr, |
| lambda : b"ond line is here\n", |
| lambda : b"", |
| lambda : b"", # XXX(gps): io library does an extra EOF read |
| ]) |
| expecting = (b"This is the first line\n" |
| b"And the second line is here\n") |
| fo = mock_sock._textiowrap_for_test(buffering=buffering) |
| if buffering == 0: |
| data = b'' |
| else: |
| data = '' |
| expecting = expecting.decode('utf-8') |
| while len(data) != len(expecting): |
| part = fo.read(size) |
| if not part: |
| break |
| data += part |
| self.assertEqual(data, expecting) |
| |
| def test_default(self): |
| self._test_readline() |
| self._test_readline(size=100) |
| self._test_read() |
| self._test_read(size=100) |
| |
| def test_with_1k_buffer(self): |
| self._test_readline(buffering=1024) |
| self._test_readline(size=100, buffering=1024) |
| self._test_read(buffering=1024) |
| self._test_read(size=100, buffering=1024) |
| |
| def _test_readline_no_buffer(self, size=-1): |
| mock_sock = self.MockSocket(recv_funcs=[ |
| lambda : b"a", |
| lambda : b"\n", |
| lambda : b"B", |
| self._raise_eintr, |
| lambda : b"b", |
| lambda : b"", |
| ]) |
| fo = mock_sock._textiowrap_for_test(buffering=0) |
| self.assertEqual(fo.readline(size), b"a\n") |
| self.assertEqual(fo.readline(size), b"Bb") |
| |
| def test_no_buffer(self): |
| self._test_readline_no_buffer() |
| self._test_readline_no_buffer(size=4) |
| self._test_read(buffering=0) |
| self._test_read(size=100, buffering=0) |
| |
| |
| class UnbufferedFileObjectClassTestCase(FileObjectClassTestCase): |
| |
| """Repeat the tests from FileObjectClassTestCase with bufsize==0. |
| |
| In this case (and in this case only), it should be possible to |
| create a file object, read a line from it, create another file |
| object, read another line from it, without loss of data in the |
| first file object's buffer. Note that http.client relies on this |
| when reading multiple requests from the same socket.""" |
| |
| bufsize = 0 # Use unbuffered mode |
| |
| def testUnbufferedReadline(self): |
| # Read a line, create a new file object, read another line with it |
| line = self.read_file.readline() # first line |
| self.assertEqual(line, b"A. " + self.write_msg) # first line |
| self.read_file = self.cli_conn.makefile('rb', 0) |
| line = self.read_file.readline() # second line |
| self.assertEqual(line, b"B. " + self.write_msg) # second line |
| |
| def _testUnbufferedReadline(self): |
| self.write_file.write(b"A. " + self.write_msg) |
| self.write_file.write(b"B. " + self.write_msg) |
| self.write_file.flush() |
| |
| def testMakefileClose(self): |
| # The file returned by makefile should keep the socket open... |
| self.cli_conn.close() |
| msg = self.cli_conn.recv(1024) |
| self.assertEqual(msg, self.read_msg) |
| # ...until the file is itself closed |
| self.read_file.close() |
| self.assertRaises(OSError, self.cli_conn.recv, 1024) |
| |
| def _testMakefileClose(self): |
| self.write_file.write(self.write_msg) |
| self.write_file.flush() |
| |
| def testMakefileCloseSocketDestroy(self): |
| refcount_before = sys.getrefcount(self.cli_conn) |
| self.read_file.close() |
| refcount_after = sys.getrefcount(self.cli_conn) |
| self.assertEqual(refcount_before - 1, refcount_after) |
| |
| def _testMakefileCloseSocketDestroy(self): |
| pass |
| |
| # Non-blocking ops |
| # NOTE: to set `read_file` as non-blocking, we must call |
| # `cli_conn.setblocking` and vice-versa (see setUp / clientSetUp). |
| |
| def testSmallReadNonBlocking(self): |
| self.cli_conn.setblocking(False) |
| self.assertEqual(self.read_file.readinto(bytearray(10)), None) |
| self.assertEqual(self.read_file.read(len(self.read_msg) - 3), None) |
| self.evt1.set() |
| self.evt2.wait(1.0) |
| first_seg = self.read_file.read(len(self.read_msg) - 3) |
| if first_seg is None: |
| # Data not arrived (can happen under Windows), wait a bit |
| time.sleep(0.5) |
| first_seg = self.read_file.read(len(self.read_msg) - 3) |
| buf = bytearray(10) |
| n = self.read_file.readinto(buf) |
| self.assertEqual(n, 3) |
| msg = first_seg + buf[:n] |
| self.assertEqual(msg, self.read_msg) |
| self.assertEqual(self.read_file.readinto(bytearray(16)), None) |
| self.assertEqual(self.read_file.read(1), None) |
| |
| def _testSmallReadNonBlocking(self): |
| self.evt1.wait(1.0) |
| self.write_file.write(self.write_msg) |
| self.write_file.flush() |
| self.evt2.set() |
| # Avoid cloding the socket before the server test has finished, |
| # otherwise system recv() will return 0 instead of EWOULDBLOCK. |
| self.serv_finished.wait(5.0) |
| |
| def testWriteNonBlocking(self): |
| self.cli_finished.wait(5.0) |
| # The client thread can't skip directly - the SkipTest exception |
| # would appear as a failure. |
| if self.serv_skipped: |
| self.skipTest(self.serv_skipped) |
| |
| def _testWriteNonBlocking(self): |
| self.serv_skipped = None |
| self.serv_conn.setblocking(False) |
| # Try to saturate the socket buffer pipe with repeated large writes. |
| BIG = b"x" * (1024 ** 2) |
| LIMIT = 10 |
| # The first write() succeeds since a chunk of data can be buffered |
| n = self.write_file.write(BIG) |
| self.assertGreater(n, 0) |
| for i in range(LIMIT): |
| n = self.write_file.write(BIG) |
| if n is None: |
| # Succeeded |
| break |
| self.assertGreater(n, 0) |
| else: |
| # Let us know that this test didn't manage to establish |
| # the expected conditions. This is not a failure in itself but, |
| # if it happens repeatedly, the test should be fixed. |
| self.serv_skipped = "failed to saturate the socket buffer" |
| |
| |
| class LineBufferedFileObjectClassTestCase(FileObjectClassTestCase): |
| |
| bufsize = 1 # Default-buffered for reading; line-buffered for writing |
| |
| |
| class SmallBufferedFileObjectClassTestCase(FileObjectClassTestCase): |
| |
| bufsize = 2 # Exercise the buffering code |
| |
| |
| class UnicodeReadFileObjectClassTestCase(FileObjectClassTestCase): |
| """Tests for socket.makefile() in text mode (rather than binary)""" |
| |
| read_mode = 'r' |
| read_msg = MSG.decode('utf-8') |
| write_mode = 'wb' |
| write_msg = MSG |
| newline = '' |
| |
| |
| class UnicodeWriteFileObjectClassTestCase(FileObjectClassTestCase): |
| """Tests for socket.makefile() in text mode (rather than binary)""" |
| |
| read_mode = 'rb' |
| read_msg = MSG |
| write_mode = 'w' |
| write_msg = MSG.decode('utf-8') |
| newline = '' |
| |
| |
| class UnicodeReadWriteFileObjectClassTestCase(FileObjectClassTestCase): |
| """Tests for socket.makefile() in text mode (rather than binary)""" |
| |
| read_mode = 'r' |
| read_msg = MSG.decode('utf-8') |
| write_mode = 'w' |
| write_msg = MSG.decode('utf-8') |
| newline = '' |
| |
| |
| class NetworkConnectionTest(object): |
| """Prove network connection.""" |
| |
| def clientSetUp(self): |
| # We're inherited below by BasicTCPTest2, which also inherits |
| # BasicTCPTest, which defines self.port referenced below. |
| self.cli = socket.create_connection((HOST, self.port)) |
| self.serv_conn = self.cli |
| |
| class BasicTCPTest2(NetworkConnectionTest, BasicTCPTest): |
| """Tests that NetworkConnection does not break existing TCP functionality. |
| """ |
| |
| class NetworkConnectionNoServer(unittest.TestCase): |
| |
| class MockSocket(socket.socket): |
| def connect(self, *args): |
| raise socket.timeout('timed out') |
| |
| @contextlib.contextmanager |
| def mocked_socket_module(self): |
| """Return a socket which times out on connect""" |
| old_socket = socket.socket |
| socket.socket = self.MockSocket |
| try: |
| yield |
| finally: |
| socket.socket = old_socket |
| |
| def test_connect(self): |
| port = support.find_unused_port() |
| cli = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| self.addCleanup(cli.close) |
| with self.assertRaises(OSError) as cm: |
| cli.connect((HOST, port)) |
| self.assertEqual(cm.exception.errno, errno.ECONNREFUSED) |
| |
| def test_create_connection(self): |
| # Issue #9792: errors raised by create_connection() should have |
| # a proper errno attribute. |
| port = support.find_unused_port() |
| with self.assertRaises(OSError) as cm: |
| socket.create_connection((HOST, port)) |
| |
| # Issue #16257: create_connection() calls getaddrinfo() against |
| # 'localhost'. This may result in an IPV6 addr being returned |
| # as well as an IPV4 one: |
| # >>> socket.getaddrinfo('localhost', port, 0, SOCK_STREAM) |
| # >>> [(2, 2, 0, '', ('127.0.0.1', 41230)), |
| # (26, 2, 0, '', ('::1', 41230, 0, 0))] |
| # |
| # create_connection() enumerates through all the addresses returned |
| # and if it doesn't successfully bind to any of them, it propagates |
| # the last exception it encountered. |
| # |
| # On Solaris, ENETUNREACH is returned in this circumstance instead |
| # of ECONNREFUSED. So, if that errno exists, add it to our list of |
| # expected errnos. |
| expected_errnos = [ errno.ECONNREFUSED, ] |
| if hasattr(errno, 'ENETUNREACH'): |
| expected_errnos.append(errno.ENETUNREACH) |
| |
| self.assertIn(cm.exception.errno, expected_errnos) |
| |
| def test_create_connection_timeout(self): |
| # Issue #9792: create_connection() should not recast timeout errors |
| # as generic socket errors. |
| with self.mocked_socket_module(): |
| with self.assertRaises(socket.timeout): |
| socket.create_connection((HOST, 1234)) |
| |
| |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class NetworkConnectionAttributesTest(SocketTCPTest, ThreadableTest): |
| |
| def __init__(self, methodName='runTest'): |
| SocketTCPTest.__init__(self, methodName=methodName) |
| ThreadableTest.__init__(self) |
| |
| def clientSetUp(self): |
| self.source_port = support.find_unused_port() |
| |
| def clientTearDown(self): |
| self.cli.close() |
| self.cli = None |
| ThreadableTest.clientTearDown(self) |
| |
| def _justAccept(self): |
| conn, addr = self.serv.accept() |
| conn.close() |
| |
| testFamily = _justAccept |
| def _testFamily(self): |
| self.cli = socket.create_connection((HOST, self.port), timeout=30) |
| self.addCleanup(self.cli.close) |
| self.assertEqual(self.cli.family, 2) |
| |
| testSourceAddress = _justAccept |
| def _testSourceAddress(self): |
| self.cli = socket.create_connection((HOST, self.port), timeout=30, |
| source_address=('', self.source_port)) |
| self.addCleanup(self.cli.close) |
| self.assertEqual(self.cli.getsockname()[1], self.source_port) |
| # The port number being used is sufficient to show that the bind() |
| # call happened. |
| |
| testTimeoutDefault = _justAccept |
| def _testTimeoutDefault(self): |
| # passing no explicit timeout uses socket's global default |
| self.assertTrue(socket.getdefaulttimeout() is None) |
| socket.setdefaulttimeout(42) |
| try: |
| self.cli = socket.create_connection((HOST, self.port)) |
| self.addCleanup(self.cli.close) |
| finally: |
| socket.setdefaulttimeout(None) |
| self.assertEqual(self.cli.gettimeout(), 42) |
| |
| testTimeoutNone = _justAccept |
| def _testTimeoutNone(self): |
| # None timeout means the same as sock.settimeout(None) |
| self.assertTrue(socket.getdefaulttimeout() is None) |
| socket.setdefaulttimeout(30) |
| try: |
| self.cli = socket.create_connection((HOST, self.port), timeout=None) |
| self.addCleanup(self.cli.close) |
| finally: |
| socket.setdefaulttimeout(None) |
| self.assertEqual(self.cli.gettimeout(), None) |
| |
| testTimeoutValueNamed = _justAccept |
| def _testTimeoutValueNamed(self): |
| self.cli = socket.create_connection((HOST, self.port), timeout=30) |
| self.assertEqual(self.cli.gettimeout(), 30) |
| |
| testTimeoutValueNonamed = _justAccept |
| def _testTimeoutValueNonamed(self): |
| self.cli = socket.create_connection((HOST, self.port), 30) |
| self.addCleanup(self.cli.close) |
| self.assertEqual(self.cli.gettimeout(), 30) |
| |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class NetworkConnectionBehaviourTest(SocketTCPTest, ThreadableTest): |
| |
| def __init__(self, methodName='runTest'): |
| SocketTCPTest.__init__(self, methodName=methodName) |
| ThreadableTest.__init__(self) |
| |
| def clientSetUp(self): |
| pass |
| |
| def clientTearDown(self): |
| self.cli.close() |
| self.cli = None |
| ThreadableTest.clientTearDown(self) |
| |
| def testInsideTimeout(self): |
| conn, addr = self.serv.accept() |
| self.addCleanup(conn.close) |
| time.sleep(3) |
| conn.send(b"done!") |
| testOutsideTimeout = testInsideTimeout |
| |
| def _testInsideTimeout(self): |
| self.cli = sock = socket.create_connection((HOST, self.port)) |
| data = sock.recv(5) |
| self.assertEqual(data, b"done!") |
| |
| def _testOutsideTimeout(self): |
| self.cli = sock = socket.create_connection((HOST, self.port), timeout=1) |
| self.assertRaises(socket.timeout, lambda: sock.recv(5)) |
| |
| |
| class TCPTimeoutTest(SocketTCPTest): |
| |
| def testTCPTimeout(self): |
| def raise_timeout(*args, **kwargs): |
| self.serv.settimeout(1.0) |
| self.serv.accept() |
| self.assertRaises(socket.timeout, raise_timeout, |
| "Error generating a timeout exception (TCP)") |
| |
| def testTimeoutZero(self): |
| ok = False |
| try: |
| self.serv.settimeout(0.0) |
| foo = self.serv.accept() |
| except socket.timeout: |
| self.fail("caught timeout instead of error (TCP)") |
| except OSError: |
| ok = True |
| except: |
| self.fail("caught unexpected exception (TCP)") |
| if not ok: |
| self.fail("accept() returned success when we did not expect it") |
| |
| def testInterruptedTimeout(self): |
| # XXX I don't know how to do this test on MSWindows or any other |
| # plaform that doesn't support signal.alarm() or os.kill(), though |
| # the bug should have existed on all platforms. |
| if not hasattr(signal, "alarm"): |
| return # can only test on *nix |
| self.serv.settimeout(5.0) # must be longer than alarm |
| class Alarm(Exception): |
| pass |
| def alarm_handler(signal, frame): |
| raise Alarm |
| old_alarm = signal.signal(signal.SIGALRM, alarm_handler) |
| try: |
| signal.alarm(2) # POSIX allows alarm to be up to 1 second early |
| try: |
| foo = self.serv.accept() |
| except socket.timeout: |
| self.fail("caught timeout instead of Alarm") |
| except Alarm: |
| pass |
| except: |
| self.fail("caught other exception instead of Alarm:" |
| " %s(%s):\n%s" % |
| (sys.exc_info()[:2] + (traceback.format_exc(),))) |
| else: |
| self.fail("nothing caught") |
| finally: |
| signal.alarm(0) # shut off alarm |
| except Alarm: |
| self.fail("got Alarm in wrong place") |
| finally: |
| # no alarm can be pending. Safe to restore old handler. |
| signal.signal(signal.SIGALRM, old_alarm) |
| |
| class UDPTimeoutTest(SocketUDPTest): |
| |
| def testUDPTimeout(self): |
| def raise_timeout(*args, **kwargs): |
| self.serv.settimeout(1.0) |
| self.serv.recv(1024) |
| self.assertRaises(socket.timeout, raise_timeout, |
| "Error generating a timeout exception (UDP)") |
| |
| def testTimeoutZero(self): |
| ok = False |
| try: |
| self.serv.settimeout(0.0) |
| foo = self.serv.recv(1024) |
| except socket.timeout: |
| self.fail("caught timeout instead of error (UDP)") |
| except OSError: |
| ok = True |
| except: |
| self.fail("caught unexpected exception (UDP)") |
| if not ok: |
| self.fail("recv() returned success when we did not expect it") |
| |
| class TestExceptions(unittest.TestCase): |
| |
| def testExceptionTree(self): |
| self.assertTrue(issubclass(OSError, Exception)) |
| self.assertTrue(issubclass(socket.herror, OSError)) |
| self.assertTrue(issubclass(socket.gaierror, OSError)) |
| self.assertTrue(issubclass(socket.timeout, OSError)) |
| |
| class TestLinuxAbstractNamespace(unittest.TestCase): |
| |
| UNIX_PATH_MAX = 108 |
| |
| def testLinuxAbstractNamespace(self): |
| address = b"\x00python-test-hello\x00\xff" |
| with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as s1: |
| s1.bind(address) |
| s1.listen(1) |
| with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as s2: |
| s2.connect(s1.getsockname()) |
| with s1.accept()[0] as s3: |
| self.assertEqual(s1.getsockname(), address) |
| self.assertEqual(s2.getpeername(), address) |
| |
| def testMaxName(self): |
| address = b"\x00" + b"h" * (self.UNIX_PATH_MAX - 1) |
| with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as s: |
| s.bind(address) |
| self.assertEqual(s.getsockname(), address) |
| |
| def testNameOverflow(self): |
| address = "\x00" + "h" * self.UNIX_PATH_MAX |
| with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as s: |
| self.assertRaises(OSError, s.bind, address) |
| |
| def testStrName(self): |
| # Check that an abstract name can be passed as a string. |
| s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) |
| try: |
| s.bind("\x00python\x00test\x00") |
| self.assertEqual(s.getsockname(), b"\x00python\x00test\x00") |
| finally: |
| s.close() |
| |
| class TestUnixDomain(unittest.TestCase): |
| |
| def setUp(self): |
| self.sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) |
| |
| def tearDown(self): |
| self.sock.close() |
| |
| def encoded(self, path): |
| # Return the given path encoded in the file system encoding, |
| # or skip the test if this is not possible. |
| try: |
| return os.fsencode(path) |
| except UnicodeEncodeError: |
| self.skipTest( |
| "Pathname {0!a} cannot be represented in file " |
| "system encoding {1!r}".format( |
| path, sys.getfilesystemencoding())) |
| |
| def bind(self, sock, path): |
| # Bind the socket |
| try: |
| sock.bind(path) |
| except OSError as e: |
| if str(e) == "AF_UNIX path too long": |
| self.skipTest( |
| "Pathname {0!a} is too long to serve as a AF_UNIX path" |
| .format(path)) |
| else: |
| raise |
| |
| def testStrAddr(self): |
| # Test binding to and retrieving a normal string pathname. |
| path = os.path.abspath(support.TESTFN) |
| self.bind(self.sock, path) |
| self.addCleanup(support.unlink, path) |
| self.assertEqual(self.sock.getsockname(), path) |
| |
| def testBytesAddr(self): |
| # Test binding to a bytes pathname. |
| path = os.path.abspath(support.TESTFN) |
| self.bind(self.sock, self.encoded(path)) |
| self.addCleanup(support.unlink, path) |
| self.assertEqual(self.sock.getsockname(), path) |
| |
| def testSurrogateescapeBind(self): |
| # Test binding to a valid non-ASCII pathname, with the |
| # non-ASCII bytes supplied using surrogateescape encoding. |
| path = os.path.abspath(support.TESTFN_UNICODE) |
| b = self.encoded(path) |
| self.bind(self.sock, b.decode("ascii", "surrogateescape")) |
| self.addCleanup(support.unlink, path) |
| self.assertEqual(self.sock.getsockname(), path) |
| |
| def testUnencodableAddr(self): |
| # Test binding to a pathname that cannot be encoded in the |
| # file system encoding. |
| if support.TESTFN_UNENCODABLE is None: |
| self.skipTest("No unencodable filename available") |
| path = os.path.abspath(support.TESTFN_UNENCODABLE) |
| self.bind(self.sock, path) |
| self.addCleanup(support.unlink, path) |
| self.assertEqual(self.sock.getsockname(), path) |
| |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class BufferIOTest(SocketConnectedTest): |
| """ |
| Test the buffer versions of socket.recv() and socket.send(). |
| """ |
| def __init__(self, methodName='runTest'): |
| SocketConnectedTest.__init__(self, methodName=methodName) |
| |
| def testRecvIntoArray(self): |
| buf = bytearray(1024) |
| nbytes = self.cli_conn.recv_into(buf) |
| self.assertEqual(nbytes, len(MSG)) |
| msg = buf[:len(MSG)] |
| self.assertEqual(msg, MSG) |
| |
| def _testRecvIntoArray(self): |
| buf = bytes(MSG) |
| self.serv_conn.send(buf) |
| |
| def testRecvIntoBytearray(self): |
| buf = bytearray(1024) |
| nbytes = self.cli_conn.recv_into(buf) |
| self.assertEqual(nbytes, len(MSG)) |
| msg = buf[:len(MSG)] |
| self.assertEqual(msg, MSG) |
| |
| _testRecvIntoBytearray = _testRecvIntoArray |
| |
| def testRecvIntoMemoryview(self): |
| buf = bytearray(1024) |
| nbytes = self.cli_conn.recv_into(memoryview(buf)) |
| self.assertEqual(nbytes, len(MSG)) |
| msg = buf[:len(MSG)] |
| self.assertEqual(msg, MSG) |
| |
| _testRecvIntoMemoryview = _testRecvIntoArray |
| |
| def testRecvFromIntoArray(self): |
| buf = bytearray(1024) |
| nbytes, addr = self.cli_conn.recvfrom_into(buf) |
| self.assertEqual(nbytes, len(MSG)) |
| msg = buf[:len(MSG)] |
| self.assertEqual(msg, MSG) |
| |
| def _testRecvFromIntoArray(self): |
| buf = bytes(MSG) |
| self.serv_conn.send(buf) |
| |
| def testRecvFromIntoBytearray(self): |
| buf = bytearray(1024) |
| nbytes, addr = self.cli_conn.recvfrom_into(buf) |
| self.assertEqual(nbytes, len(MSG)) |
| msg = buf[:len(MSG)] |
| self.assertEqual(msg, MSG) |
| |
| _testRecvFromIntoBytearray = _testRecvFromIntoArray |
| |
| def testRecvFromIntoMemoryview(self): |
| buf = bytearray(1024) |
| nbytes, addr = self.cli_conn.recvfrom_into(memoryview(buf)) |
| self.assertEqual(nbytes, len(MSG)) |
| msg = buf[:len(MSG)] |
| self.assertEqual(msg, MSG) |
| |
| _testRecvFromIntoMemoryview = _testRecvFromIntoArray |
| |
| |
| TIPC_STYPE = 2000 |
| TIPC_LOWER = 200 |
| TIPC_UPPER = 210 |
| |
| def isTipcAvailable(): |
| """Check if the TIPC module is loaded |
| |
| The TIPC module is not loaded automatically on Ubuntu and probably |
| other Linux distros. |
| """ |
| if not hasattr(socket, "AF_TIPC"): |
| return False |
| if not os.path.isfile("/proc/modules"): |
| return False |
| with open("/proc/modules") as f: |
| for line in f: |
| if line.startswith("tipc "): |
| return True |
| if support.verbose: |
| print("TIPC module is not loaded, please 'sudo modprobe tipc'") |
| return False |
| |
| class TIPCTest(unittest.TestCase): |
| def testRDM(self): |
| srv = socket.socket(socket.AF_TIPC, socket.SOCK_RDM) |
| cli = socket.socket(socket.AF_TIPC, socket.SOCK_RDM) |
| self.addCleanup(srv.close) |
| self.addCleanup(cli.close) |
| |
| srv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) |
| srvaddr = (socket.TIPC_ADDR_NAMESEQ, TIPC_STYPE, |
| TIPC_LOWER, TIPC_UPPER) |
| srv.bind(srvaddr) |
| |
| sendaddr = (socket.TIPC_ADDR_NAME, TIPC_STYPE, |
| TIPC_LOWER + int((TIPC_UPPER - TIPC_LOWER) / 2), 0) |
| cli.sendto(MSG, sendaddr) |
| |
| msg, recvaddr = srv.recvfrom(1024) |
| |
| self.assertEqual(cli.getsockname(), recvaddr) |
| self.assertEqual(msg, MSG) |
| |
| |
| class TIPCThreadableTest(unittest.TestCase, ThreadableTest): |
| def __init__(self, methodName = 'runTest'): |
| unittest.TestCase.__init__(self, methodName = methodName) |
| ThreadableTest.__init__(self) |
| |
| def setUp(self): |
| self.srv = socket.socket(socket.AF_TIPC, socket.SOCK_STREAM) |
| self.addCleanup(self.srv.close) |
| self.srv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) |
| srvaddr = (socket.TIPC_ADDR_NAMESEQ, TIPC_STYPE, |
| TIPC_LOWER, TIPC_UPPER) |
| self.srv.bind(srvaddr) |
| self.srv.listen(5) |
| self.serverExplicitReady() |
| self.conn, self.connaddr = self.srv.accept() |
| self.addCleanup(self.conn.close) |
| |
| def clientSetUp(self): |
| # The is a hittable race between serverExplicitReady() and the |
| # accept() call; sleep a little while to avoid it, otherwise |
| # we could get an exception |
| time.sleep(0.1) |
| self.cli = socket.socket(socket.AF_TIPC, socket.SOCK_STREAM) |
| self.addCleanup(self.cli.close) |
| addr = (socket.TIPC_ADDR_NAME, TIPC_STYPE, |
| TIPC_LOWER + int((TIPC_UPPER - TIPC_LOWER) / 2), 0) |
| self.cli.connect(addr) |
| self.cliaddr = self.cli.getsockname() |
| |
| def testStream(self): |
| msg = self.conn.recv(1024) |
| self.assertEqual(msg, MSG) |
| self.assertEqual(self.cliaddr, self.connaddr) |
| |
| def _testStream(self): |
| self.cli.send(MSG) |
| self.cli.close() |
| |
| |
| @unittest.skipUnless(thread, 'Threading required for this test.') |
| class ContextManagersTest(ThreadedTCPSocketTest): |
| |
| def _testSocketClass(self): |
| # base test |
| with socket.socket() as sock: |
| self.assertFalse(sock._closed) |
| self.assertTrue(sock._closed) |
| # close inside with block |
| with socket.socket() as sock: |
| sock.close() |
| self.assertTrue(sock._closed) |
| # exception inside with block |
| with socket.socket() as sock: |
| self.assertRaises(OSError, sock.sendall, b'foo') |
| self.assertTrue(sock._closed) |
| |
| def testCreateConnectionBase(self): |
| conn, addr = self.serv.accept() |
| self.addCleanup(conn.close) |
| data = conn.recv(1024) |
| conn.sendall(data) |
| |
| def _testCreateConnectionBase(self): |
| address = self.serv.getsockname() |
| with socket.create_connection(address) as sock: |
| self.assertFalse(sock._closed) |
| sock.sendall(b'foo') |
| self.assertEqual(sock.recv(1024), b'foo') |
| self.assertTrue(sock._closed) |
| |
| def testCreateConnectionClose(self): |
| conn, addr = self.serv.accept() |
| self.addCleanup(conn.close) |
| data = conn.recv(1024) |
| conn.sendall(data) |
| |
| def _testCreateConnectionClose(self): |
| address = self.serv.getsockname() |
| with socket.create_connection(address) as sock: |
| sock.close() |
| self.assertTrue(sock._closed) |
| self.assertRaises(OSError, sock.sendall, b'foo') |
| |
| |
| @unittest.skipUnless(hasattr(socket, "SOCK_CLOEXEC"), |
| "SOCK_CLOEXEC not defined") |
| @unittest.skipUnless(fcntl, "module fcntl not available") |
| class CloexecConstantTest(unittest.TestCase): |
| @support.requires_linux_version(2, 6, 28) |
| def test_SOCK_CLOEXEC(self): |
| with socket.socket(socket.AF_INET, |
| socket.SOCK_STREAM | socket.SOCK_CLOEXEC) as s: |
| self.assertTrue(s.type & socket.SOCK_CLOEXEC) |
| self.assertTrue(fcntl.fcntl(s, fcntl.F_GETFD) & fcntl.FD_CLOEXEC) |
| |
| |
| @unittest.skipUnless(hasattr(socket, "SOCK_NONBLOCK"), |
| "SOCK_NONBLOCK not defined") |
| class NonblockConstantTest(unittest.TestCase): |
| def checkNonblock(self, s, nonblock=True, timeout=0.0): |
| if nonblock: |
| self.assertTrue(s.type & socket.SOCK_NONBLOCK) |
| self.assertEqual(s.gettimeout(), timeout) |
| else: |
| self.assertFalse(s.type & socket.SOCK_NONBLOCK) |
| self.assertEqual(s.gettimeout(), None) |
| |
| @support.requires_linux_version(2, 6, 28) |
| def test_SOCK_NONBLOCK(self): |
| # a lot of it seems silly and redundant, but I wanted to test that |
| # changing back and forth worked ok |
| with socket.socket(socket.AF_INET, |
| socket.SOCK_STREAM | socket.SOCK_NONBLOCK) as s: |
| self.checkNonblock(s) |
| s.setblocking(1) |
| self.checkNonblock(s, False) |
| s.setblocking(0) |
| self.checkNonblock(s) |
| s.settimeout(None) |
| self.checkNonblock(s, False) |
| s.settimeout(2.0) |
| self.checkNonblock(s, timeout=2.0) |
| s.setblocking(1) |
| self.checkNonblock(s, False) |
| # defaulttimeout |
| t = socket.getdefaulttimeout() |
| socket.setdefaulttimeout(0.0) |
| with socket.socket() as s: |
| self.checkNonblock(s) |
| socket.setdefaulttimeout(None) |
| with socket.socket() as s: |
| self.checkNonblock(s, False) |
| socket.setdefaulttimeout(2.0) |
| with socket.socket() as s: |
| self.checkNonblock(s, timeout=2.0) |
| socket.setdefaulttimeout(None) |
| with socket.socket() as s: |
| self.checkNonblock(s, False) |
| socket.setdefaulttimeout(t) |
| |
| |
| @unittest.skipUnless(os.name == "nt", "Windows specific") |
| @unittest.skipUnless(multiprocessing, "need multiprocessing") |
| class TestSocketSharing(SocketTCPTest): |
| # This must be classmethod and not staticmethod or multiprocessing |
| # won't be able to bootstrap it. |
| @classmethod |
| def remoteProcessServer(cls, q): |
| # Recreate socket from shared data |
| sdata = q.get() |
| message = q.get() |
| |
| s = socket.fromshare(sdata) |
| s2, c = s.accept() |
| |
| # Send the message |
| s2.sendall(message) |
| s2.close() |
| s.close() |
| |
| def testShare(self): |
| # Transfer the listening server socket to another process |
| # and service it from there. |
| |
| # Create process: |
| q = multiprocessing.Queue() |
| p = multiprocessing.Process(target=self.remoteProcessServer, args=(q,)) |
| p.start() |
| |
| # Get the shared socket data |
| data = self.serv.share(p.pid) |
| |
| # Pass the shared socket to the other process |
| addr = self.serv.getsockname() |
| self.serv.close() |
| q.put(data) |
| |
| # The data that the server will send us |
| message = b"slapmahfro" |
| q.put(message) |
| |
| # Connect |
| s = socket.create_connection(addr) |
| # listen for the data |
| m = [] |
| while True: |
| data = s.recv(100) |
| if not data: |
| break |
| m.append(data) |
| s.close() |
| received = b"".join(m) |
| self.assertEqual(received, message) |
| p.join() |
| |
| def testShareLength(self): |
| data = self.serv.share(os.getpid()) |
| self.assertRaises(ValueError, socket.fromshare, data[:-1]) |
| self.assertRaises(ValueError, socket.fromshare, data+b"foo") |
| |
| def compareSockets(self, org, other): |
| # socket sharing is expected to work only for blocking socket |
| # since the internal python timout value isn't transfered. |
| self.assertEqual(org.gettimeout(), None) |
| self.assertEqual(org.gettimeout(), other.gettimeout()) |
| |
| self.assertEqual(org.family, other.family) |
| self.assertEqual(org.type, other.type) |
| # If the user specified "0" for proto, then |
| # internally windows will have picked the correct value. |
| # Python introspection on the socket however will still return |
| # 0. For the shared socket, the python value is recreated |
| # from the actual value, so it may not compare correctly. |
| if org.proto != 0: |
| self.assertEqual(org.proto, other.proto) |
| |
| def testShareLocal(self): |
| data = self.serv.share(os.getpid()) |
| s = socket.fromshare(data) |
| try: |
| self.compareSockets(self.serv, s) |
| finally: |
| s.close() |
| |
| def testTypes(self): |
| families = [socket.AF_INET, socket.AF_INET6] |
| types = [socket.SOCK_STREAM, socket.SOCK_DGRAM] |
| for f in families: |
| for t in types: |
| try: |
| source = socket.socket(f, t) |
| except OSError: |
| continue # This combination is not supported |
| try: |
| data = source.share(os.getpid()) |
| shared = socket.fromshare(data) |
| try: |
| self.compareSockets(source, shared) |
| finally: |
| shared.close() |
| finally: |
| source.close() |
| |
| |
| def test_main(): |
| tests = [GeneralModuleTests, BasicTCPTest, TCPCloserTest, TCPTimeoutTest, |
| TestExceptions, BufferIOTest, BasicTCPTest2, BasicUDPTest, UDPTimeoutTest ] |
| |
| tests.extend([ |
| NonBlockingTCPTests, |
| FileObjectClassTestCase, |
| FileObjectInterruptedTestCase, |
| UnbufferedFileObjectClassTestCase, |
| LineBufferedFileObjectClassTestCase, |
| SmallBufferedFileObjectClassTestCase, |
| UnicodeReadFileObjectClassTestCase, |
| UnicodeWriteFileObjectClassTestCase, |
| UnicodeReadWriteFileObjectClassTestCase, |
| NetworkConnectionNoServer, |
| NetworkConnectionAttributesTest, |
| NetworkConnectionBehaviourTest, |
| ContextManagersTest, |
| CloexecConstantTest, |
| NonblockConstantTest |
| ]) |
| if hasattr(socket, "socketpair"): |
| tests.append(BasicSocketPairTest) |
| if hasattr(socket, "AF_UNIX"): |
| tests.append(TestUnixDomain) |
| if sys.platform == 'linux': |
| tests.append(TestLinuxAbstractNamespace) |
| if isTipcAvailable(): |
| tests.append(TIPCTest) |
| tests.append(TIPCThreadableTest) |
| tests.extend([BasicCANTest, CANTest]) |
| tests.extend([BasicRDSTest, RDSTest]) |
| tests.extend([ |
| CmsgMacroTests, |
| SendmsgUDPTest, |
| RecvmsgUDPTest, |
| RecvmsgIntoUDPTest, |
| SendmsgUDP6Test, |
| RecvmsgUDP6Test, |
| RecvmsgRFC3542AncillaryUDP6Test, |
| RecvmsgIntoRFC3542AncillaryUDP6Test, |
| RecvmsgIntoUDP6Test, |
| SendmsgTCPTest, |
| RecvmsgTCPTest, |
| RecvmsgIntoTCPTest, |
| SendmsgSCTPStreamTest, |
| RecvmsgSCTPStreamTest, |
| RecvmsgIntoSCTPStreamTest, |
| SendmsgUnixStreamTest, |
| RecvmsgUnixStreamTest, |
| RecvmsgIntoUnixStreamTest, |
| RecvmsgSCMRightsStreamTest, |
| RecvmsgIntoSCMRightsStreamTest, |
| # These are slow when setitimer() is not available |
| InterruptedRecvTimeoutTest, |
| InterruptedSendTimeoutTest, |
| TestSocketSharing, |
| ]) |
| |
| thread_info = support.threading_setup() |
| support.run_unittest(*tests) |
| support.threading_cleanup(*thread_info) |
| |
| if __name__ == "__main__": |
| test_main() |