Python socket.SCM_RIGHTS Examples

The following are 30 code examples of socket.SCM_RIGHTS(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module socket , or try the search function .
Example #1
Source File: reduction.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 6 votes vote down vote up 
def recvfds(sock, size):
        '''Receive an array of fds over an AF_UNIX socket.'''
        a = array.array('i')
        bytes_size = a.itemsize * size
        msg, ancdata, flags, addr = sock.recvmsg(1, socket.CMSG_LEN(bytes_size))
        if not msg and not ancdata:
            raise EOFError
        try:
            if ACKNOWLEDGE:
                sock.send(b'A')
            if len(ancdata) != 1:
                raise RuntimeError('received %d items of ancdata' %
                                   len(ancdata))
            cmsg_level, cmsg_type, cmsg_data = ancdata[0]
            if (cmsg_level == socket.SOL_SOCKET and
                cmsg_type == socket.SCM_RIGHTS):
                if len(cmsg_data) % a.itemsize != 0:
                    raise ValueError
                a.frombytes(cmsg_data)
                assert len(a) % 256 == msg[0]
                return list(a)
        except (ValueError, IndexError):
            pass
        raise RuntimeError('Invalid data received')
Example #2
Source File: test_socket.py    From ironpython3 with Apache License 2.0 6 votes vote down vote up 
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)
Example #3
Source File: test_socket.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 6 votes vote down vote up 
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)
Example #4
Source File: reduction.py    From ironpython3 with Apache License 2.0 6 votes vote down vote up 
def recvfds(sock, size):
        '''Receive an array of fds over an AF_UNIX socket.'''
        a = array.array('i')
        bytes_size = a.itemsize * size
        msg, ancdata, flags, addr = sock.recvmsg(1, socket.CMSG_LEN(bytes_size))
        if not msg and not ancdata:
            raise EOFError
        try:
            if ACKNOWLEDGE:
                sock.send(b'A')
            if len(ancdata) != 1:
                raise RuntimeError('received %d items of ancdata' %
                                   len(ancdata))
            cmsg_level, cmsg_type, cmsg_data = ancdata[0]
            if (cmsg_level == socket.SOL_SOCKET and
                cmsg_type == socket.SCM_RIGHTS):
                if len(cmsg_data) % a.itemsize != 0:
                    raise ValueError
                a.frombytes(cmsg_data)
                assert len(a) % 256 == msg[0]
                return list(a)
        except (ValueError, IndexError):
            pass
        raise RuntimeError('Invalid data received')
Example #5
Source File: test_socket.py    From Fluid-Designer with GNU General Public License v3.0 6 votes vote down vote up 
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)
Example #6
Source File: reduction.py    From Fluid-Designer with GNU General Public License v3.0 6 votes vote down vote up 
def recvfds(sock, size):
        '''Receive an array of fds over an AF_UNIX socket.'''
        a = array.array('i')
        bytes_size = a.itemsize * size
        msg, ancdata, flags, addr = sock.recvmsg(1, socket.CMSG_LEN(bytes_size))
        if not msg and not ancdata:
            raise EOFError
        try:
            if ACKNOWLEDGE:
                sock.send(b'A')
            if len(ancdata) != 1:
                raise RuntimeError('received %d items of ancdata' %
                                   len(ancdata))
            cmsg_level, cmsg_type, cmsg_data = ancdata[0]
            if (cmsg_level == socket.SOL_SOCKET and
                cmsg_type == socket.SCM_RIGHTS):
                if len(cmsg_data) % a.itemsize != 0:
                    raise ValueError
                a.frombytes(cmsg_data)
                assert len(a) % 256 == msg[0]
                return list(a)
        except (ValueError, IndexError):
            pass
        raise RuntimeError('Invalid data received')
Example #7
Source File: test_socket.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def _testFDPassPartialInt(self):
        self.sendAncillaryIfPossible(
            MSG,
            [(socket.SOL_SOCKET,
              socket.SCM_RIGHTS,
              array.array("i", [self.badfd]).tobytes()[:-1])])
Example #8
Source File: test_socket.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
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)
Example #9
Source File: test_socket.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
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]))])
Example #10
Source File: reduction.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def sendfds(sock, fds):
        '''Send an array of fds over an AF_UNIX socket.'''
        fds = array.array('i', fds)
        msg = bytes([len(fds) % 256])
        sock.sendmsg([msg], [(socket.SOL_SOCKET, socket.SCM_RIGHTS, fds)])
        if ACKNOWLEDGE and sock.recv(1) != b'A':
            raise RuntimeError('did not receive acknowledgement of fd')
Example #11
Source File: reduction.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def DupFd(fd):
        '''Return a wrapper for an fd.'''
        popen_obj = context.get_spawning_popen()
        if popen_obj is not None:
            return popen_obj.DupFd(popen_obj.duplicate_for_child(fd))
        elif HAVE_SEND_HANDLE:
            from . import resource_sharer
            return resource_sharer.DupFd(fd)
        else:
            raise ValueError('SCM_RIGHTS appears not to be available')

#
# Try making some callable types picklable
#
Example #12
Source File: jsoncomm.py    From osbuild with Apache License 2.0 5 votes vote down vote up 
def send(self, payload: object, *, destination: Optional[str] = None, fds: Optional[list] = None):
        """Send Message

        Send a new message via this socket. This operation is synchronous. The
        maximum message size depends on the configured send-buffer on the
        socket. An `OSError` with `EMSGSIZE` is raised when it is exceeded.

        Parameters
        ----------
        payload
            A python object to serialize as JSON and send via this socket. See
            `json.dump()` for details about the serialization involved.
        destination
            The destination to send to. If `None`, the default destination is
            used (if none is set, this will raise an `OSError`).
        fds
            A list of file-descriptors to send with the message.

        Raises
        ------
        OSError
            If the socket cannot be written, a matching `OSError` is raised.
        TypeError
            If the payload cannot be serialized, a type error is raised.
        """

        serialized = json.dumps(payload).encode()
        cmsg = []
        if fds:
            cmsg.append((socket.SOL_SOCKET, socket.SCM_RIGHTS, array.array("i", fds)))

        n = self._socket.sendmsg([serialized], cmsg, 0, destination)
        assert n == len(serialized)
Example #13
Source File: test_socket.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
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)
Example #14
Source File: test_socket.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
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))
Example #15
Source File: test_socket.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
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)
Example #16
Source File: test_socket.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def _testFDPassSimple(self):
        self.assertEqual(
            self.sendmsgToServer(
                [MSG],
                [(socket.SOL_SOCKET,
                  socket.SCM_RIGHTS,
                  array.array("i", self.newFDs(1)).tobytes())]),
            len(MSG))
Example #17
Source File: test_socket.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
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))
Example #18
Source File: test_socket.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def _testFDPassEmpty(self):
        self.sendAncillaryIfPossible(MSG, [(socket.SOL_SOCKET,
                                            socket.SCM_RIGHTS,
                                            b"")])
Example #19
Source File: test_socket.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
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)
Example #20
Source File: test_socket.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def _testFDPassPartialInt(self):
        self.sendAncillaryIfPossible(
            MSG,
            [(socket.SOL_SOCKET,
              socket.SCM_RIGHTS,
              array.array("i", [self.badfd]).tobytes()[:-1])])
Example #21
Source File: test_socket.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
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]))])
Example #22
Source File: reduction.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def sendfds(sock, fds):
        '''Send an array of fds over an AF_UNIX socket.'''
        fds = array.array('i', fds)
        msg = bytes([len(fds) % 256])
        sock.sendmsg([msg], [(socket.SOL_SOCKET, socket.SCM_RIGHTS, fds)])
        if ACKNOWLEDGE and sock.recv(1) != b'A':
            raise RuntimeError('did not receive acknowledgement of fd')
Example #23
Source File: reduction.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def DupFd(fd):
        '''Return a wrapper for an fd.'''
        popen_obj = context.get_spawning_popen()
        if popen_obj is not None:
            return popen_obj.DupFd(popen_obj.duplicate_for_child(fd))
        elif HAVE_SEND_HANDLE:
            from . import resource_sharer
            return resource_sharer.DupFd(fd)
        else:
            raise ValueError('SCM_RIGHTS appears not to be available')

#
# Try making some callable types picklable
#
Example #24
Source File: reduction.py    From Imogen with MIT License 5 votes vote down vote up 
def sendfds(sock, fds):
        '''Send an array of fds over an AF_UNIX socket.'''
        fds = array.array('i', fds)
        msg = bytes([len(fds) % 256])
        sock.sendmsg([msg], [(socket.SOL_SOCKET, socket.SCM_RIGHTS, fds)])
        if ACKNOWLEDGE and sock.recv(1) != b'A':
            raise RuntimeError('did not receive acknowledgement of fd')
Example #25
Source File: test_socket.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
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))
Example #26
Source File: test_socket.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
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)
Example #27
Source File: test_socket.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def _testFDPassSimple(self):
        self.assertEqual(
            self.sendmsgToServer(
                [MSG],
                [(socket.SOL_SOCKET,
                  socket.SCM_RIGHTS,
                  array.array("i", self.newFDs(1)).tobytes())]),
            len(MSG))
Example #28
Source File: test_socket.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
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))
Example #29
Source File: test_socket.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def _testFDPassEmpty(self):
        self.sendAncillaryIfPossible(MSG, [(socket.SOL_SOCKET,
                                            socket.SCM_RIGHTS,
                                            b"")])
Example #30
Source File: test_socket.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
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)