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https://github.com/volatilityfoundation/volatility3.git
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71 lines
3.3 KiB
Python
71 lines
3.3 KiB
Python
# This file is Copyright 2019 Volatility Foundation and licensed under the Volatility Software License 1.0
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# which is available at https://www.volatilityfoundation.org/license/vsl-v1.0
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#
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import logging
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from typing import List
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from volatility.framework import renderers, exceptions, interfaces
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from volatility.framework.configuration import requirements
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from volatility.framework.interfaces import plugins
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from volatility.framework.layers import intel
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vollog = logging.getLogger(__name__)
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class Statistics(plugins.PluginInterface):
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@classmethod
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def get_requirements(cls) -> List[interfaces.configuration.RequirementInterface]:
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return [
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requirements.TranslationLayerRequirement(name = 'primary',
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description = 'Memory layer for the kernel',
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architectures = ["Intel32", "Intel64"])
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]
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def _generator(self):
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# Do mass mapping and determine the number of different layers and how many pages go to each one
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layer = self.context.layers[self.config['primary']]
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page_count = swap_count = invalid_page_count = large_page_count = large_swap_count = large_invalid_count = other_invalid = 0
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if isinstance(layer, intel.Intel):
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page_addr = 0
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expected_page_size = 1 << layer.bits_per_register
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while page_addr < layer.maximum_address:
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try:
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_, _, page_size, layer_name = list(layer.mapping(page_addr, 2 * expected_page_size))[0]
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if layer_name != layer.config['memory_layer']:
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swap_count += 1
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else:
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page_count += 1
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if page_size > expected_page_size:
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large_page_count += 1
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except exceptions.SwappedInvalidAddressException as excp:
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swap_count += 1
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page_size = (1 << excp.invalid_bits)
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if page_size != expected_page_size:
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large_swap_count += 1
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except exceptions.PagedInvalidAddressException as excp:
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invalid_page_count += 1
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page_size = (1 << excp.invalid_bits)
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if page_size != expected_page_size:
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large_invalid_count += 1
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except exceptions.InvalidAddressException as excp:
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other_invalid += 1
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page_size = expected_page_size
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vollog.debug("A non-page lookup invalid address exception occurred at: {} in layer {}".format(
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hex(excp.invalid_address), excp.layer_name))
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page_addr += page_size
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self._progress_callback((page_addr * 100) / layer.maximum_address, "Reading memory")
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yield (0, (page_count, large_page_count, swap_count, large_swap_count, invalid_page_count, large_invalid_count,
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other_invalid))
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def run(self):
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return renderers.TreeGrid([("Valid pages (all)", int), ("Valid pages (large)", int),
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("Swapped Pages (all)", int), ("Swapped Pages (large)", int),
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("Invalid Pages (all)", int), ("Invalid Pages (large)", int),
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("Other Invalid Pages (all)", int)], self._generator())
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