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74 lines
2.8 KiB
Python
74 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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from typing import Callable, Iterable, List, Any
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import volatility.framework.interfaces.plugins as interfaces_plugins
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from volatility.framework import renderers, interfaces, contexts
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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.objects import utility
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class PsList(interfaces_plugins.PluginInterface):
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"""Lists the processes present in a particular linux memory image"""
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_version = (1, 0, 0)
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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(
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name = 'primary', description = 'Memory layer for the kernel', 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 create_pid_filter(cls, pid_list: List[int] = None) -> Callable[[Any], bool]:
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# FIXME: mypy #4973 or #2608
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pid_list = pid_list or []
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filter_list = [x for x in pid_list if x is not None]
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if filter_list:
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def filter_func(x):
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return x.pid not in filter_list
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return filter_func
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else:
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return lambda _: False
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def _generator(self):
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for task in self.list_tasks(
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self.context,
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self.config['primary'],
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self.config['vmlinux'],
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filter_func = self.create_pid_filter([self.config.get('pid', None)])):
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pid = task.pid
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ppid = 0
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if task.parent:
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ppid = task.parent.pid
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name = utility.array_to_string(task.comm)
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yield (0, (pid, ppid, name))
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@classmethod
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def list_tasks(cls,
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context: interfaces.context.ContextInterface,
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layer_name: str,
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vmlinux_symbols: str,
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filter_func: Callable[[int], bool] = lambda _: False
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) -> Iterable[interfaces.objects.ObjectInterface]:
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"""Lists all the tasks in the primary layer"""
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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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init_task = vmlinux.object_from_symbol(symbol_name = "init_task")
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for task in init_task.tasks:
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if not filter_func(task):
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yield task
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def run(self):
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return renderers.TreeGrid([("PID", int), ("PPID", int), ("COMM", str)], self._generator())
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