# This file is Copyright 2019 Volatility Foundation and licensed under the Volatility Software License 1.0
# which is available at https://www.volatilityfoundation.org/license/vsl-v1.0
#
from typing import List
from volatility.framework import renderers, exceptions, interfaces
from volatility.framework.configuration import requirements
from volatility.framework.interfaces import plugins
from volatility.framework.layers import intel
[docs]class Statistics(plugins.PluginInterface):
[docs] @classmethod
def get_requirements(cls) -> List[interfaces.configuration.RequirementInterface]:
return [
requirements.TranslationLayerRequirement(name = 'primary',
description = 'Memory layer for the kernel',
architectures = ["Intel32", "Intel64"])
]
def _generator(self):
# Do mass mapping and determine the number of different layers and how many pages go to each one
layer = self.context.layers[self.config['primary']]
page_count = swap_count = invalid_page_count = large_page_count = large_swap_count = large_invalid_count = 0
if isinstance(layer, intel.Intel):
page_addr = 0
while page_addr < layer.maximum_address:
try:
_, _, page_size, layer_name = list(layer.mapping(page_addr, 0x2000))[0]
if layer_name != layer.config['memory_layer']:
swap_count += 1
else:
page_count += 1
if page_size > 0x1000:
large_page_count += 1
except exceptions.SwappedInvalidAddressException as excp:
swap_count += 1
page_size = (1 << excp.invalid_bits)
if page_size != 0x1000:
large_swap_count += 1
except exceptions.PagedInvalidAddressException as excp:
invalid_page_count += 1
page_size = (1 << excp.invalid_bits)
if page_size != 0x1000:
large_invalid_count += 1
page_addr += page_size
self._progress_callback((page_addr * 100) / layer.maximum_address, "Reading memory")
yield (0, (page_count, large_page_count, swap_count, large_swap_count, invalid_page_count, large_invalid_count))
[docs] def run(self):
return renderers.TreeGrid([("Valid pages (all)", int), ("Valid pages (large)", int),
("Swapped Pages (all)", int), ("Swapped Pages (large)", int),
("Invalid Pages (all)", int), ("Invalid Pages (large)", int)], self._generator())