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65 lines
2.8 KiB
Python
65 lines
2.8 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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"""A module containing a collection of plugins that produce data typically
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found in Linux's /proc file system."""
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from typing import List, Generator, Iterable
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from volatility.framework import contexts
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from volatility.framework import renderers, constants, interfaces
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from volatility.framework.automagic import linux
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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.objects import utility
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from volatility.framework.renderers import format_hints
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class Lsmod(plugins.PluginInterface):
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"""Lists loaded kernel modules."""
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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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requirements.SymbolTableRequirement(name = "vmlinux", description = "Linux kernel symbols")
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]
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@classmethod
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def list_modules(cls, context: interfaces.context.ContextInterface, layer_name: str,
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vmlinux_symbols: str) -> Iterable[interfaces.objects.ObjectInterface]:
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"""Lists all the modules in the primary layer.
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Args:
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context: The context to retrieve required elements (layers, symbol tables) from
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layer_name: The name of the layer on which to operate
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vmlinux_symbols: The name of the table containing the kernel symbols
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Yields:
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The modules present in the `layer_name` layer's modules list
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"""
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linux.LinuxUtilities.aslr_mask_symbol_table(context, vmlinux_symbols, layer_name)
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vmlinux = contexts.Module(context, vmlinux_symbols, layer_name, 0)
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modules = vmlinux.object_from_symbol(symbol_name = "modules").cast("list_head")
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table_name = modules.vol.type_name.split(constants.BANG)[0]
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for module in modules.to_list(table_name + constants.BANG + "module", "list"):
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yield module
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def _generator(self):
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for module in self.list_modules(self.context, self.config['primary'], self.config['vmlinux']):
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mod_size = module.get_init_size() + module.get_core_size()
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mod_name = utility.array_to_string(module.name)
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yield 0, (format_hints.Hex(module.vol.offset), mod_name, mod_size)
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def run(self):
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return renderers.TreeGrid([("Offset", format_hints.Hex), ("Name", str), ("Size", int)], self._generator())
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