mirror of
https://github.com/naksyn/PythonMemoryModule
synced 2026-06-06 16:24:25 +00:00
command line support (partial) via PEB stomping
This update include support to passing command line parameters to unmanaged exe via PEB stomping. This technique is not working with every executable since it depends on which functions are used to pass arguments. Generally, to get a universally working technique would be required to hook GetCommandlineA GetCommandlineW __getmainargs and __wgetmainargs since PEB stomping won't cover all cases, more details here: https://blog-30cm-tw.translate.goog/2020/08/windows-c-mainargc-argv.html?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=it&_x_tr_pto=wapp However, during my testing I found that mimikatz and several go binaries are working just by doing PEB stomping. On the other hand, cmdline passing via PEB stomping alone to mingw and VS compiled binaries won't likely work.
This commit is contained in:
naksyn
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import sys
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import ctypes
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from collections import namedtuple
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import windows
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from windows import winproxy
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from windows import generated_def as gdef
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import windows.pycompat
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## For 64b python
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# 0x1f: 0x80000000: ALPC_MESSAGE_SECURITY_ATTRIBUTE(0x80000000) : size=0x18?
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# 0x1e: 0x40000000: ALPC_MESSAGE_VIEW_ATTRIBUTE(0x40000000): size=0x20
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# 0x1d: 0x20000000: ALPC_MESSAGE_CONTEXT_ATTRIBUTE(0x20000000): size=0x20
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# 0x1c: 0x10000000: ALPC_MESSAGE_HANDLE_ATTRIBUTE(0x10000000): size=0x18
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# 0x1b: 0x8000000: ALPC_MESSAGE_TOKEN_ATTRIBUTE(0x8000000): size=0x18
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# 0x1a: 0x4000000: ALPC_MESSAGE_DIRECT_ATTRIBUTE(0x4000000) size=0x8
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# 0x19: 0x2000000: ALPC_MESSAGE_WORK_ON_BEHALF_ATTRIBUTE(0x2000000) size=0x8
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DEFAULT_MESSAGE_SIZE = 0x1000
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class AlpcMessage(object):
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"""Represent a full ALPC Message: a :class:`AlpcMessagePort` and a :class:`MessageAttribute`"""
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# PORT_MESSAGE + MessageAttribute
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def __init__(self, msg_or_size=DEFAULT_MESSAGE_SIZE, attributes=None):
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# Init the PORT_MESSAGE
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if isinstance(msg_or_size, windows.pycompat.int_types):
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self.port_message_buffer_size = msg_or_size
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self.port_message_raw_buffer = ctypes.c_buffer(msg_or_size)
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self.port_message = AlpcMessagePort.from_buffer(self.port_message_raw_buffer)
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self.port_message.set_datalen(0)
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elif isinstance(msg_or_size, AlpcMessagePort):
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self.port_message = msg_or_size
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self.port_message_raw_buffer = self.port_message.raw_buffer
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self.port_message_buffer_size = len(self.port_message_raw_buffer)
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else:
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raise NotImplementedError("Uneexpected type for <msg_or_size>: {0}".format(msg_or_size))
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# Init the MessageAttributes
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if attributes is None:
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# self.attributes = MessageAttribute.with_all_attributes()
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self.attributes = MessageAttribute.with_all_attributes() ## Testing
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else:
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self.attributes = attributes
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# PORT_MESSAGE wrappers
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@property
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def type(self):
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"""The type of the message (``PORT_MESSAGE.u2.s2.Type``)"""
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return self.port_message.u2.s2.Type
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def get_port_message_data(self):
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return self.port_message.data
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def set_port_message_data(self, data):
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self.port_message.data = data
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data = property(get_port_message_data, set_port_message_data)
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"The data of the message (located after the PORT_MESSAGE header)"
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# MessageAttributes wrappers
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## Low level attributes access
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@property
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def security_attribute(self):
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"""The :data:`~windows.generated_def.ALPC_MESSAGE_SECURITY_ATTRIBUTE` of the message
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:type: :class:`ALPC_SECURITY_ATTR`
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"""
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return self.attributes.get_attribute(gdef.ALPC_MESSAGE_SECURITY_ATTRIBUTE)
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@property
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def view_attribute(self):
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"""The :data:`~windows.generated_def.ALPC_MESSAGE_VIEW_ATTRIBUTE` of the message:
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:type: :class:`ALPC_DATA_VIEW_ATTR`
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"""
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return self.attributes.get_attribute(gdef.ALPC_MESSAGE_VIEW_ATTRIBUTE)
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@property
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def context_attribute(self):
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"""The :data:`~windows.generated_def.ALPC_MESSAGE_CONTEXT_ATTRIBUTE` of the message:
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:type: :class:`ALPC_CONTEXT_ATTR`
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"""
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return self.attributes.get_attribute(gdef.ALPC_MESSAGE_CONTEXT_ATTRIBUTE)
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@property
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def handle_attribute(self):
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"""The :data:`~windows.generated_def.ALPC_MESSAGE_HANDLE_ATTRIBUTE` of the message:
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:type: :class:`ALPC_HANDLE_ATTR`
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"""
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return self.attributes.get_attribute(gdef.ALPC_MESSAGE_HANDLE_ATTRIBUTE)
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## Low level validity check (Test)
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@property
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def view_is_valid(self): # Change the name ?
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"""True if :data:`~windows.generated_def.ALPC_MESSAGE_VIEW_ATTRIBUTE` is a ValidAttributes"""
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return self.attributes.is_valid(gdef.ALPC_MESSAGE_VIEW_ATTRIBUTE)
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@property
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def security_is_valid(self): # Change the name ?
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"""True if :data:`~windows.generated_def.ALPC_MESSAGE_SECURITY_ATTRIBUTE` is a ValidAttributes"""
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return self.attributes.is_valid(gdef.ALPC_MESSAGE_SECURITY_ATTRIBUTE)
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@property
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def handle_is_valid(self): # Change the name ?
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"""True if :data:`~windows.generated_def.ALPC_MESSAGE_HANDLE_ATTRIBUTE` is a ValidAttributes"""
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return self.attributes.is_valid(gdef.ALPC_MESSAGE_HANDLE_ATTRIBUTE)
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@property
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def context_is_valid(self): # Change the name ?
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"""True if :data:`~windows.generated_def.ALPC_MESSAGE_CONTEXT_ATTRIBUTE` is a ValidAttributes"""
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return self.attributes.is_valid(gdef.ALPC_MESSAGE_CONTEXT_ATTRIBUTE)
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@property
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def valid_attributes(self):
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"""The list of valid attributes
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:type: [:class:`~windows.generated_def.Flag`]
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"""
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return self.attributes.valid_list
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@property
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def allocated_attributes(self):
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"""The list of allocated attributes
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:type: [:class:`~windows.generated_def.Flag`]
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"""
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return self.attributes.allocated_list
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## High level setup (Test)
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def setup_view(self, size, section_handle=0, flags=None):
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raise NotImplementedError(self.setup_view)
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class AlpcMessagePort(gdef.PORT_MESSAGE):
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"""The effective ALPC Message composed of a ``PORT_MESSAGE`` structure followed by the data"""
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# Constructeur
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@classmethod
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def from_buffer(self, buffer):
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# A sort of super(AlpcMessagePort).from_buffer
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# But from_buffer is from the Metaclass of AlpcMessagePort so we use 'type(AlpcMessagePort)'
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# To access the standard version of from_buffer.
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self = type(AlpcMessagePort).from_buffer(AlpcMessagePort, buffer)
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self.buffer_size = len(buffer)
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self.raw_buffer = buffer
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self.header_size = ctypes.sizeof(self)
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self.max_datasize = self.buffer_size - self.header_size
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return self
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@classmethod
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def from_buffer_size(cls, buffer_size):
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buffer = ctypes.c_buffer(buffer_size)
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return cls.from_buffer(buffer)
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def read_data(self):
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return self.raw_buffer[ctypes.sizeof(self):ctypes.sizeof(self) + self.u1.s1.DataLength]
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def write_data(self, data):
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if len(data) > self.max_datasize:
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import pdb; pdb.set_trace()
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raise ValueError("Cannot write data of len <{0}> (raw_buffer size == <{1}>)".format(len(data), self.buffer_size))
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self.raw_buffer[self.header_size: self.header_size + len(data)] = data
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self.set_datalen(len(data))
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data = property(read_data, write_data)
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"The data of the message (located after the header)"
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def set_datalen(self, datalen):
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self.u1.s1.TotalLength = self.header_size + datalen
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self.u1.s1.DataLength = datalen
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def get_datalen(self):
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return self.u1.s1.DataLength
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datalen = property(get_datalen, set_datalen)
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"""The length of the data"""
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KNOWN_ALPC_ATTRIBUTES = (gdef.ALPC_MESSAGE_SECURITY_ATTRIBUTE,
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gdef.ALPC_MESSAGE_VIEW_ATTRIBUTE,
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gdef.ALPC_MESSAGE_CONTEXT_ATTRIBUTE,
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gdef.ALPC_MESSAGE_HANDLE_ATTRIBUTE,
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gdef.ALPC_MESSAGE_TOKEN_ATTRIBUTE,
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gdef.ALPC_MESSAGE_DIRECT_ATTRIBUTE,
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gdef.ALPC_MESSAGE_WORK_ON_BEHALF_ATTRIBUTE)
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KNOWN_ALPC_ATTRIBUTES_MAPPING = gdef.FlagMapper(*KNOWN_ALPC_ATTRIBUTES)
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class MessageAttribute(gdef.ALPC_MESSAGE_ATTRIBUTES):
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"""The attributes of an ALPC message"""
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ATTRIBUTE_BY_FLAG = [(gdef.ALPC_MESSAGE_SECURITY_ATTRIBUTE, gdef.ALPC_SECURITY_ATTR),
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(gdef.ALPC_MESSAGE_VIEW_ATTRIBUTE, gdef.ALPC_DATA_VIEW_ATTR),
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(gdef.ALPC_MESSAGE_CONTEXT_ATTRIBUTE, gdef.ALPC_CONTEXT_ATTR),
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(gdef.ALPC_MESSAGE_HANDLE_ATTRIBUTE, gdef.ALPC_HANDLE_ATTR),
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(gdef.ALPC_MESSAGE_TOKEN_ATTRIBUTE, gdef.ALPC_TOKEN_ATTR),
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(gdef.ALPC_MESSAGE_DIRECT_ATTRIBUTE, gdef.ALPC_DIRECT_ATTR),
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(gdef.ALPC_MESSAGE_WORK_ON_BEHALF_ATTRIBUTE, gdef.ALPC_WORK_ON_BEHALF_ATTR),
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]
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@classmethod
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def with_attributes(cls, attributes):
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"""Create a new :class:`MessageAttribute` with ``attributes`` allocated
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:returns: :class:`MessageAttribute`
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"""
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size = cls._get_required_buffer_size(attributes)
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buffer = ctypes.c_buffer(size)
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self = cls.from_buffer(buffer)
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self.raw_buffer = buffer
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res = gdef.DWORD()
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winproxy.AlpcInitializeMessageAttribute(attributes, self, len(self.raw_buffer), res)
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return self
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@classmethod
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def with_all_attributes(cls):
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"""Create a new :class:`MessageAttribute` with the following attributes allocated:
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- :class:`ALPC_MESSAGE_SECURITY_ATTRIBUTE`
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- :class:`ALPC_MESSAGE_VIEW_ATTRIBUTE`
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- :class:`ALPC_MESSAGE_CONTEXT_ATTRIBUTE`
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- :class:`ALPC_MESSAGE_HANDLE_ATTRIBUTE`
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- :class:`ALPC_MESSAGE_TOKEN_ATTRIBUTE`
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- :class:`ALPC_MESSAGE_DIRECT_ATTRIBUTE`
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- :class:`ALPC_MESSAGE_WORK_ON_BEHALF_ATTRIBUTE`
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:returns: :class:`MessageAttribute`
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"""
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return cls.with_attributes(gdef.ALPC_MESSAGE_SECURITY_ATTRIBUTE |
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gdef.ALPC_MESSAGE_VIEW_ATTRIBUTE |
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gdef.ALPC_MESSAGE_CONTEXT_ATTRIBUTE |
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gdef.ALPC_MESSAGE_HANDLE_ATTRIBUTE |
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gdef.ALPC_MESSAGE_TOKEN_ATTRIBUTE |
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gdef.ALPC_MESSAGE_DIRECT_ATTRIBUTE |
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gdef.ALPC_MESSAGE_WORK_ON_BEHALF_ATTRIBUTE)
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@staticmethod
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def _get_required_buffer_size(flags):
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res = gdef.DWORD()
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try:
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windows.winproxy.AlpcInitializeMessageAttribute(flags, None, 0, res)
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except windows.generated_def.ntstatus.NtStatusException as e:
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# Buffer too small: osef
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return res.value
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return res.value
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def is_allocated(self, attribute):
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"""Return ``True`` if ``attribute`` is allocated"""
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return bool(self.AllocatedAttributes & attribute)
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def is_valid(self, attribute):
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"""Return ``True`` if ``attribute`` is valid"""
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return bool(self.ValidAttributes & attribute)
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def get_attribute(self, attribute):
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if not self.is_allocated(attribute):
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raise ValueError("Cannot get non-allocated attribute <{0}>".format(attribute))
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offset = ctypes.sizeof(self)
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for sflag, struct in self.ATTRIBUTE_BY_FLAG:
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if sflag == attribute:
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# print("Attr {0:#x} was at offet {1:#x}".format(attribute, offset))
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return struct.from_address(ctypes.addressof(self) + offset)
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elif self.is_allocated(sflag):
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offset += ctypes.sizeof(struct)
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raise ValueError("ALPC Attribute <{0}> not found :(".format(attribute))
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def _extract_alpc_attributes_values(self, value):
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attrs = []
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for mask in (1 << i for i in range(64)):
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if value & mask:
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attrs.append(mask)
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return [KNOWN_ALPC_ATTRIBUTES_MAPPING[x] for x in attrs]
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@property
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def valid_list(self):
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"""The list of valid attributes
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:type: [:class:`~windows.generated_def.Flag`]
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"""
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return self._extract_alpc_attributes_values(self.ValidAttributes)
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@property
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def allocated_list(self):
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"""The list of allocated attributes
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:type: [:class:`~windows.generated_def.Flag`]
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"""
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return self._extract_alpc_attributes_values(self.AllocatedAttributes)
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AlpcSection = namedtuple("AlpcSection", ["handle", "size"])
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class AlpcTransportBase(object):
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def send_receive(self, alpc_message, receive_msg=None, flags=gdef.ALPC_MSGFLG_SYNC_REQUEST, timeout=None):
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"""Send and receive a message with ``flags``.
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:param alpc_message: The message to send. If ``alpc_message`` is a :class:`str` it build an AlpcMessage with the message as data.
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:type alpc_message: AlpcMessage or str
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:param receive_msg: The message to send. If ``receive_msg`` is a ``None`` it create and return a simple :class:`AlpcMessage`
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:type receive_msg: AlpcMessage or None
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:param int flags: The flags for :func:`NtAlpcSendWaitReceivePort`
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"""
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if isinstance(alpc_message, windows.pycompat.anybuff):
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raw_alpc_message = alpc_message
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alpc_message = AlpcMessage(max(0x1000, len(alpc_message) + 0x200))
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alpc_message.port_message.data = raw_alpc_message
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if receive_msg is None:
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receive_msg = AlpcMessage(DEFAULT_MESSAGE_SIZE)
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receive_size = gdef.SIZE_T(receive_msg.port_message_buffer_size)
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winproxy.NtAlpcSendWaitReceivePort(self.handle, flags, alpc_message.port_message, alpc_message.attributes, receive_msg.port_message, receive_size, receive_msg.attributes, timeout)
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return receive_msg
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def send(self, alpc_message, flags=0):
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"""Send the ``alpc_message`` with ``flags``
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:param alpc_message: The message to send. If ``alpc_message`` is a :class:`str` it build an AlpcMessage with the message as data.
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:type alpc_message: AlpcMessage or str
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:param int flags: The flags for :func:`NtAlpcSendWaitReceivePort`
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"""
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if isinstance(alpc_message, windows.pycompat.anybuff):
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raw_alpc_message = alpc_message
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alpc_message = AlpcMessage(max(0x1000, len(alpc_message) + 0x200))
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alpc_message.port_message.data = raw_alpc_message
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winproxy.NtAlpcSendWaitReceivePort(self.handle, flags, alpc_message.port_message, alpc_message.attributes, None, None, None, None)
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def recv(self, receive_msg=None, flags=0):
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"""Receive a message into ``alpc_message`` with ``flags``.
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:param receive_msg: The message to send. If ``receive_msg`` is a ``None`` it create and return a simple :class:`AlpcMessage`
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:type receive_msg: AlpcMessage or None
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:param int flags: The flags for :func:`NtAlpcSendWaitReceivePort`
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"""
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if receive_msg is None:
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receive_msg = AlpcMessage(DEFAULT_MESSAGE_SIZE)
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receive_size = gdef.SIZE_T(receive_msg.port_message_buffer_size)
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winproxy.NtAlpcSendWaitReceivePort(self.handle, flags, None, None, receive_msg.port_message, receive_size, receive_msg.attributes, None)
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return receive_msg
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def _close_port(self, port_handle):
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windows.winproxy.NtAlpcDisconnectPort(port_handle, 0)
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windows.winproxy.CloseHandle(port_handle)
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class AlpcClient(AlpcTransportBase):
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"An ALPC client able to connect to a port and send/receive messages"
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def __init__(self, port_name=None):
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"""Init the :class:`AlpcClient` automatically connect to ``port_name`` using default values if given"""
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self.handle = None
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self.port_name = None #: The name of the ALPC port the client is connect to.
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if port_name is not None:
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x = self.connect_to_port(port_name, "")
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def _alpc_port_to_unicode_string(self, name):
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return gdef.UNICODE_STRING.from_string(name)
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def connect_to_port(self, port_name, connect_message=None,
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port_attr=None, port_attr_flags=0x10000, obj_attr=None,
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flags=gdef.ALPC_MSGFLG_SYNC_REQUEST, timeout=None):
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"""Connect to the ALPC port ``port_name``. Most of the parameters have defauls value is ``None`` is passed.
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:param AlpcMessage connect_message: The message send with the connection request, if not ``None`` the function will return an :class:`AlpcMessage`
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:param ALPC_PORT_ATTRIBUTES port_attr: The port attributes, one with default value will be used if this parameter is ``None``
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:param int port_attr_flags: ``ALPC_PORT_ATTRIBUTES.Flags`` used if ``port_attr`` is ``None`` (MUTUALY EXCLUSINVE WITH ``port_attr``)
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:param OBJECT_ATTRIBUTES obj_attr: The attributes of the port (can be None)
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:param int flags: The flags for :func:`NtAlpcConnectPort`
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:param int timeout: The timeout of the request
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"""
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# TODO raise on mutual exclusive parameter
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if self.handle is not None:
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raise ValueError("Client already connected")
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handle = gdef.HANDLE()
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port_name_unicode = self._alpc_port_to_unicode_string(port_name)
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if port_attr is None:
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port_attr = gdef.ALPC_PORT_ATTRIBUTES()
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port_attr.Flags = port_attr_flags # Flag qui fonctionne pour l'UAC
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port_attr.MaxMessageLength = DEFAULT_MESSAGE_SIZE
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port_attr.MemoryBandwidth = 0
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port_attr.MaxPoolUsage = 0xffffffff
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port_attr.MaxSectionSize = 0xffffffff
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port_attr.MaxViewSize = 0xffffffff
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port_attr.MaxTotalSectionSize = 0xffffffff
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port_attr.DupObjectTypes = 0xffffffff
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|
||||
port_attr.SecurityQos.Length = ctypes.sizeof(port_attr.SecurityQos)
|
||||
port_attr.SecurityQos.ImpersonationLevel = gdef.SecurityImpersonation
|
||||
port_attr.SecurityQos.ContextTrackingMode = 0
|
||||
port_attr.SecurityQos.EffectiveOnly = 0
|
||||
|
||||
if connect_message is None:
|
||||
send_msg = None
|
||||
send_msg_attr = None
|
||||
buffersize = None
|
||||
elif isinstance(connect_message, windows.pycompat.anybuff):
|
||||
buffersize = gdef.DWORD(len(connect_message) + 0x1000)
|
||||
send_msg = AlpcMessagePort.from_buffer_size(buffersize.value)
|
||||
send_msg.data = connect_message
|
||||
send_msg_attr = MessageAttribute.with_all_attributes()
|
||||
elif isinstance(connect_message, AlpcMessage):
|
||||
send_msg = connect_message.port_message
|
||||
send_msg_attr = connect_message.attributes
|
||||
buffersize = gdef.DWORD(connect_message.port_message_buffer_size)
|
||||
else:
|
||||
raise ValueError("Don't know how to send <{0!r}> as connect message".format(connect_message))
|
||||
|
||||
receive_attr = MessageAttribute.with_all_attributes()
|
||||
winproxy.NtAlpcConnectPort(handle, port_name_unicode, obj_attr, port_attr, flags, None, send_msg, buffersize, send_msg_attr, receive_attr, timeout)
|
||||
# If send_msg is not None, it contains the ClientId.UniqueProcess : PID of the server :)
|
||||
self.handle = handle.value
|
||||
self.port_name = port_name
|
||||
return AlpcMessage(send_msg, receive_attr) if send_msg is not None else None
|
||||
|
||||
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 map_section(self, section_handle, size, flags=0):
|
||||
view_attributes = gdef.ALPC_DATA_VIEW_ATTR()
|
||||
view_attributes.Flags = 0
|
||||
view_attributes.SectionHandle = section_handle
|
||||
view_attributes.ViewBase = 0
|
||||
view_attributes.ViewSize = size
|
||||
r = winproxy.NtAlpcCreateSectionView(self.handle, flags, view_attributes)
|
||||
return view_attributes
|
||||
|
||||
def disconnect(self):
|
||||
if self.handle:
|
||||
self._close_port(self.handle)
|
||||
|
||||
def __del__(self):
|
||||
if sys.path is not None:
|
||||
self.disconnect()
|
||||
|
||||
|
||||
class AlpcServer(AlpcTransportBase):
|
||||
"""An ALPC server able to create a port, accept connections and send/receive messages"""
|
||||
|
||||
def __init__(self, port_name=None):
|
||||
self.port_name = None
|
||||
self.communication_port_list = []
|
||||
self.handle = None
|
||||
if port_name is not None:
|
||||
self.create_port(port_name)
|
||||
|
||||
def _alpc_port_to_unicode_string(self, name):
|
||||
return gdef.UNICODE_STRING.from_string(name)
|
||||
|
||||
def create_port(self, port_name, msglen=None, port_attr_flags=0, obj_attr=None, port_attr=None):
|
||||
"""Create the ALPC port ``port_name``. Most of the parameters have defauls value is ``None`` is passed.
|
||||
|
||||
:param str port_name: The port's name to create.
|
||||
:param int msglen: ``ALPC_PORT_ATTRIBUTES.MaxMessageLength`` used if ``port_attr`` is ``None`` (MUTUALY EXCLUSINVE WITH ``port_attr``)
|
||||
:param int port_attr_flags: ``ALPC_PORT_ATTRIBUTES.Flags`` used if ``port_attr`` is ``None`` (MUTUALY EXCLUSINVE WITH ``port_attr``)
|
||||
:param OBJECT_ATTRIBUTES obj_attr: The attributes of the port, one with default value will be used if this parameter is ``None``
|
||||
:param ALPC_PORT_ATTRIBUTES port_attr: The port attributes, one with default value will be used if this parameter is ``None``
|
||||
"""
|
||||
# TODO raise on mutual exclusive parameter (port_attr + port_attr_flags | obj_attr + msglen)
|
||||
handle = gdef.HANDLE()
|
||||
raw_name = port_name
|
||||
if not raw_name.startswith("\\"):
|
||||
raw_name = "\\" + port_name
|
||||
port_name = self._alpc_port_to_unicode_string(raw_name)
|
||||
|
||||
if msglen is None:
|
||||
msglen = DEFAULT_MESSAGE_SIZE
|
||||
if obj_attr is None:
|
||||
obj_attr = gdef.OBJECT_ATTRIBUTES()
|
||||
obj_attr.Length = ctypes.sizeof(obj_attr)
|
||||
obj_attr.RootDirectory = None
|
||||
obj_attr.ObjectName = ctypes.pointer(port_name)
|
||||
obj_attr.Attributes = 0
|
||||
obj_attr.SecurityDescriptor = None
|
||||
obj_attr.SecurityQualityOfService = None
|
||||
if port_attr is None:
|
||||
port_attr = gdef.ALPC_PORT_ATTRIBUTES()
|
||||
port_attr.Flags = port_attr_flags
|
||||
# port_attr.Flags = 0x2080000
|
||||
# port_attr.Flags = 0x90000
|
||||
port_attr.MaxMessageLength = msglen
|
||||
port_attr.MemoryBandwidth = 0
|
||||
port_attr.MaxPoolUsage = 0xffffffff
|
||||
port_attr.MaxSectionSize = 0xffffffff
|
||||
port_attr.MaxViewSize = 0xffffffff
|
||||
port_attr.MaxTotalSectionSize = 0xffffffff
|
||||
port_attr.DupObjectTypes = 0xffffffff
|
||||
# windows.utils.print_ctypes_struct(port_attr, " - PORT_ATTR", hexa=True)
|
||||
|
||||
winproxy.NtAlpcCreatePort(handle, obj_attr, port_attr)
|
||||
self.port_name = raw_name
|
||||
self.handle = handle.value
|
||||
|
||||
def accept_connection(self, msg, port_attr=None, port_context=None):
|
||||
"""Accept the connection for a ``LPC_CONNECTION_REQUEST`` message.
|
||||
``msg.MessageId`` must be the same as the connection requesting message.
|
||||
|
||||
:param AlpcMessage msg: The response message.
|
||||
:param ALPC_PORT_ATTRIBUTES port_attr: The attributes of the port, one with default value will be used if this parameter is ``None``
|
||||
:param PVOID port_context: A value that will be copied in ``ALPC_CONTEXT_ATTR.PortContext`` of every message on this connection.
|
||||
|
||||
"""
|
||||
rhandle = gdef.HANDLE()
|
||||
|
||||
if port_attr is None:
|
||||
port_attr = gdef.ALPC_PORT_ATTRIBUTES()
|
||||
port_attr.Flags = 0x80000
|
||||
# port_attr.Flags = 0x80000 + 0x2000000
|
||||
# port_attr.Flags = 0x2000000
|
||||
port_attr.MaxMessageLength = DEFAULT_MESSAGE_SIZE
|
||||
port_attr.MemoryBandwidth = 0
|
||||
port_attr.MaxPoolUsage = 0xffffffff
|
||||
port_attr.MaxSectionSize = 0xffffffff
|
||||
port_attr.MaxViewSize = 0xffffffff
|
||||
port_attr.MaxTotalSectionSize = 0xffffffff
|
||||
port_attr.DupObjectTypes = 0xffffffff
|
||||
# windows.utils.print_ctypes_struct(port_attr, " - CONN_PORT_ATTR", hexa=True)
|
||||
winproxy.NtAlpcAcceptConnectPort(rhandle, self.handle, 0, None, port_attr, port_context, msg.port_message, None, True)
|
||||
self.communication_port_list.append(rhandle.value)
|
||||
return msg
|
||||
|
||||
def disconnect(self):
|
||||
if self.handle:
|
||||
self._close_port(self.handle)
|
||||
for com_port_handle in self.communication_port_list:
|
||||
self._close_port(com_port_handle)
|
||||
|
||||
# TODO: add an API to close a communication port ?
|
||||
|
||||
def __del__(self):
|
||||
if sys.path is not None:
|
||||
self.disconnect()
|
||||
Reference in New Issue
Block a user