mirror of
https://github.com/volatilityfoundation/volatility3.git
synced 2026-08-20 05:35:41 +02:00
76 lines
3.1 KiB
Python
76 lines
3.1 KiB
Python
# This file is Copyright 2020 Volatility Foundation and licensed under the Volatility Software License 1.0
|
|
# which is available at https://www.volatilityfoundation.org/license/vsl-v1.0
|
|
#
|
|
|
|
import logging
|
|
from typing import List
|
|
|
|
from volatility.framework import interfaces, renderers, exceptions, constants, contexts
|
|
from volatility.framework.configuration import requirements
|
|
from volatility.framework.interfaces import plugins
|
|
from volatility.framework.objects import utility
|
|
from volatility.framework.renderers import format_hints
|
|
from volatility.plugins.linux import lsmod
|
|
|
|
vollog = logging.getLogger(__name__)
|
|
|
|
|
|
class Check_modules(plugins.PluginInterface):
|
|
"""Compares module list to sysfs info, if available"""
|
|
|
|
_required_framework_version = (2, 0, 0)
|
|
|
|
@classmethod
|
|
def get_requirements(cls) -> List[interfaces.configuration.RequirementInterface]:
|
|
return [
|
|
requirements.TranslationLayerRequirement(name = 'primary',
|
|
description = 'Memory layer for the kernel',
|
|
architectures = ["Intel32", "Intel64"]),
|
|
requirements.SymbolTableRequirement(name = "vmlinux", description = "Linux kernel symbols"),
|
|
requirements.PluginRequirement(name = 'lsmod', plugin = lsmod.Lsmod, version = (1, 0, 0))
|
|
]
|
|
|
|
def get_kset_modules(self, vmlinux):
|
|
|
|
try:
|
|
module_kset = vmlinux.object_from_symbol("module_kset")
|
|
except exceptions.SymbolError:
|
|
module_kset = None
|
|
|
|
if not module_kset:
|
|
raise TypeError(
|
|
"This plugin requires the module_kset structure. This structure is not present in the supplied symbol table. This means you are either analyzing an unsupported kernel version or that your symbol table is corrupt."
|
|
)
|
|
|
|
ret = {}
|
|
|
|
kobj_off = self.context.symbol_space.get_type(self.config['vmlinux'] + constants.BANG +
|
|
'module_kobject').relative_child_offset('kobj')
|
|
|
|
for kobj in module_kset.list.to_list(vmlinux.name + constants.BANG + "kobject", "entry"):
|
|
|
|
mod_kobj = vmlinux.object(object_type = "module_kobject", offset = kobj.vol.offset - kobj_off)
|
|
|
|
mod = mod_kobj.mod
|
|
|
|
name = utility.pointer_to_string(kobj.name, 32)
|
|
if kobj.name and kobj.reference_count() > 2:
|
|
ret[name] = mod
|
|
|
|
return ret
|
|
|
|
def _generator(self):
|
|
vmlinux = contexts.Module(self.context, self.config['vmlinux'], self.config['primary'], 0)
|
|
|
|
kset_modules = self.get_kset_modules(vmlinux)
|
|
|
|
lsmod_modules = set(
|
|
str(utility.array_to_string(modules.name))
|
|
for modules in lsmod.Lsmod.list_modules(self.context, self.config['primary'], self.config['vmlinux']))
|
|
|
|
for mod_name in set(kset_modules.keys()).difference(lsmod_modules):
|
|
yield (0, (format_hints.Hex(kset_modules[mod_name]), str(mod_name)))
|
|
|
|
def run(self):
|
|
return renderers.TreeGrid([("Module Address", format_hints.Hex), ("Module Name", str)], self._generator())
|