def send_receive(self,
alpc_message,
receive_msg=None,
flags=gdef.ALPC_MSGFLG_SYNC_REQUEST,
timeout=None):
"""Send and receive a message with ``flags``.
:param alpc_message: The message to send. If ``alpc_message`` is a :class:`str` it build an AlpcMessage with the message as data.
:type alpc_message: AlpcMessage or str
:param receive_msg: The message to send. If ``receive_msg`` is a ``None`` it create and return a simple :class:`AlpcMessage`
:type receive_msg: AlpcMessage or None
:param int flags: The flags for :func:`NtAlpcSendWaitReceivePort`
"""
if isinstance(alpc_message, windows.pycompat.anybuff):
raw_alpc_message = alpc_message
alpc_message = AlpcMessage(max(0x1000, len(alpc_message) + 0x200))
alpc_message.port_message.data = raw_alpc_message
if receive_msg is None:
receive_msg = AlpcMessage(DEFAULT_MESSAGE_SIZE)
receive_size = gdef.SIZE_T(receive_msg.port_message_buffer_size)
winproxy.NtAlpcSendWaitReceivePort(self.handle, flags,
alpc_message.port_message,
alpc_message.attributes,
receive_msg.port_message,
receive_size,
receive_msg.attributes, timeout)
return receive_msg
def create_port_section(self, Flags, SectionHandle, SectionSize):
AlpcSectionHandle = gdef.HANDLE()
ActualSectionSize = gdef.SIZE_T()
# RPCRT4 USE FLAGS 0x40000 ALPC_VIEWFLG_NOT_SECURE ?
winproxy.NtAlpcCreatePortSection(self.handle, Flags, SectionHandle,
SectionSize, AlpcSectionHandle,
ActualSectionSize)
return AlpcSection(AlpcSectionHandle.value, ActualSectionSize.value)
def recv(self, receive_msg=None, flags=0):
"""Receive a message into ``alpc_message`` with ``flags``.
:param receive_msg: The message to send. If ``receive_msg`` is a ``None`` it create and return a simple :class:`AlpcMessage`
:type receive_msg: AlpcMessage or None
:param int flags: The flags for :func:`NtAlpcSendWaitReceivePort`
"""
if receive_msg is None:
receive_msg = AlpcMessage(0x1000)
receive_size = gdef.SIZE_T(receive_msg.port_message_buffer_size)
winproxy.NtAlpcSendWaitReceivePort(self.handle, flags, None, None, receive_msg.port_message, receive_size, receive_msg.attributes, None)
return receive_msg
