mirror of
https://github.com/volatilityfoundation/volatility
synced 2026-06-08 18:04:46 +00:00
iMHLv2
99 lines
3.3 KiB
Python
99 lines
3.3 KiB
Python
# Volatility
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or (at
|
|
# your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful, but
|
|
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
# General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software
|
|
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
"""
|
|
@author: Andrew Case
|
|
@license: GNU General Public License 2.0 or later
|
|
@contact: atcuno@gmail.com
|
|
@organization:
|
|
"""
|
|
|
|
import volatility.obj as obj
|
|
import volatility.plugins.linux.flags as linux_flags
|
|
import volatility.plugins.linux.common as linux_common
|
|
import volatility.plugins.linux.pslist as linux_pslist
|
|
|
|
PIDTYPE_PID = 0
|
|
|
|
# the < 2.6.24 processing is based on crash from redhat
|
|
class linux_pidhashtable(linux_pslist.linux_pslist):
|
|
"""Enumerates processes through the PID hash table"""
|
|
|
|
def walk_tasks_for_pid(self, pid):
|
|
|
|
if pid.obj_offset in self.seen_pids:
|
|
return
|
|
|
|
self.seen_pids[pid.obj_offset] = 1
|
|
|
|
task_pid_off = self.profile.get_obj_offset("task_struct", "pids")
|
|
pids_node_off = self.profile.get_obj_offset("pid_link", "node")
|
|
total_off = task_pid_off + pids_node_off
|
|
|
|
for i in [PIDTYPE_PID]:
|
|
|
|
task_ent = obj.Object("hlist_node", offset = pid.tasks[i].first, vm = self.addr_space)
|
|
|
|
while task_ent.v():
|
|
|
|
task = obj.Object("task_struct", offset = task_ent.obj_offset - total_off, vm = self.addr_space)
|
|
|
|
yield task
|
|
|
|
task_ent = task_ent.next
|
|
|
|
def calculate_2_6_24(self):
|
|
|
|
self.seen_pids = {}
|
|
|
|
pidhash_shift = obj.Object("unsigned int", offset = self.get_profile_symbol("pidhash_shift"), vm = self.addr_space)
|
|
pidhash_size = 1 << pidhash_shift
|
|
|
|
pidhash_addr = self.get_profile_symbol("pid_hash")
|
|
pidhash_ptr = obj.Object("Pointer", offset = pidhash_addr, vm = self.addr_space)
|
|
|
|
# pidhash is an array of hlist_heads
|
|
pidhash = obj.Object(theType = 'Array', offset = pidhash_ptr, vm = self.addr_space, targetType = 'hlist_head', count = pidhash_size)
|
|
|
|
for hlist in pidhash:
|
|
|
|
# each entry in the hlist is a upid which is wrapped in a pid
|
|
ent = hlist.first
|
|
|
|
while ent:
|
|
|
|
upid = linux_common.get_obj(self, ent.obj_offset, "upid", "pid_chain")
|
|
|
|
while upid:
|
|
|
|
pid = linux_common.get_obj(self, upid.obj_offset, "pid", "numbers")
|
|
|
|
for task in self.walk_tasks_for_pid(pid):
|
|
yield task
|
|
|
|
if not upid.pid_chain.next:
|
|
break
|
|
|
|
upid = linux_common.get_obj(self, upid.pid_chain.next, "upid", "pid_chain")
|
|
|
|
ent = ent.next
|
|
|
|
def calculate(self):
|
|
for task in self.calculate_2_6_24():
|
|
yield task
|
|
|
|
|