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98 lines
3.2 KiB
Python
98 lines
3.2 KiB
Python
# This file is Copyright 2024 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, Iterator
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from volatility3.framework import renderers, interfaces
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from volatility3.framework.constants import architectures
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from volatility3.framework.objects import utility
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from volatility3.framework.configuration import requirements
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from volatility3.framework.interfaces import plugins
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from volatility3.plugins.linux import pslist
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vollog = logging.getLogger(__name__)
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class Ptrace(plugins.PluginInterface):
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"""Enumerates ptrace's tracer and tracee tasks"""
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_required_framework_version = (2, 10, 0)
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_version = (1, 0, 2)
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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.ModuleRequirement(
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name="kernel",
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description="Linux kernel",
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architectures=architectures.LINUX_ARCHS,
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),
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requirements.PluginRequirement(
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name="pslist", plugin=pslist.PsList, version=(4, 0, 0)
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),
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]
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@classmethod
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def enumerate_ptrace_tasks(
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cls,
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context: interfaces.context.ContextInterface,
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vmlinux_module_name: str,
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) -> Iterator[interfaces.objects.ObjectInterface]:
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"""Enumerates ptrace's tracer and tracee tasks
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Args:
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context: The context to retrieve required elements (layers, symbol tables) from
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vmlinux_module_name: The name of the kernel module on which to operate
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Yields:
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A task_struct object
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"""
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tasks = pslist.PsList.list_tasks(
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context,
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vmlinux_module_name,
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filter_func=pslist.PsList.create_pid_filter(),
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include_threads=True,
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)
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for task in tasks:
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if task.is_being_ptraced or task.is_ptracing:
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yield task
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def _generator(self, vmlinux_module_name):
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for task in self.enumerate_ptrace_tasks(self.context, vmlinux_module_name):
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task_comm = utility.array_to_string(task.comm)
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user_pid = task.tgid
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user_tid = task.pid
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tracer_tid = task.get_ptrace_tracer_tid() or renderers.NotAvailableValue()
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tracee_tids = task.get_ptrace_tracee_tids() or [
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renderers.NotAvailableValue()
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]
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flags = task.get_ptrace_tracee_flags() or renderers.NotAvailableValue()
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for level, tracee_tid in enumerate(tracee_tids):
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fields = [
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task_comm,
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user_pid,
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user_tid,
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tracer_tid,
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tracee_tid,
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flags,
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]
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yield (level, fields)
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def run(self):
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vmlinux_module_name = self.config["kernel"]
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headers = [
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("Process", str),
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("PID", int),
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("TID", int),
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("Tracer TID", int),
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("Tracee TID", int),
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("Flags", str),
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]
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return renderers.TreeGrid(headers, self._generator(vmlinux_module_name))
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