mirror of
https://github.com/volatilityfoundation/volatility
synced 2026-06-08 18:04:46 +00:00
Andrew C
109 lines
3.6 KiB
Python
109 lines
3.6 KiB
Python
# Volatility
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# Copyright (C) 2007-2013 Volatility Foundation
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#
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# This file is part of Volatility.
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#
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# Volatility is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License Version 2 as
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# published by the Free Software Foundation. You may not use, modify or
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# distribute this program under any other version of the GNU General
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# Public License.
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#
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# Volatility is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Volatility. If not, see <http://www.gnu.org/licenses/>.
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#
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"""
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@author: Andrew Case
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@license: GNU General Public License 2.0
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@contact: atcuno@gmail.com
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@organization:
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"""
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import os
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import volatility.obj as obj
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import volatility.debug as debug
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import volatility.plugins.linux.common as linux_common
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import volatility.plugins.linux.find_file as linux_find_file
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class linux_recover_filesystem(linux_common.AbstractLinuxCommand):
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"""Recovers the entire cached file system from memory"""
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def __init__(self, config, *args, **kwargs):
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linux_common.AbstractLinuxCommand.__init__(self, config, *args, **kwargs)
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self._config.add_option('DUMP-DIR', short_option = 'D', default = None, help = 'Output directory', action = 'store', type = 'str')
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def _fix_metadata(self, file_path, file_dentry):
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inode = file_dentry.d_inode
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if inode and inode.is_valid():
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ents = file_path.split("/")
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out_path = os.path.join(self._config.DUMP_DIR, *ents)
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os.chmod(out_path, inode.i_mode & 00777)
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os.chown(out_path, inode.i_uid, inode.i_gid)
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os.utime(out_path, (inode.i_atime.tv_sec, inode.i_mtime.tv_sec))
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def _write_file(self, ff, file_path, file_dentry):
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inode = file_dentry.d_inode
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if inode and inode.is_valid() and not inode.is_dir():
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ents = file_path.split("/")
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out_path = os.path.join(self._config.DUMP_DIR, *ents)
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try:
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fd = open(out_path, "wb")
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except IOError, e:
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debug.warning("Unable to process file: %s : %s" % (out_path, str(e)))
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return
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for page in ff.get_file_contents(inode):
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fd.write(page)
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fd.close()
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def _make_path(self, file_path, file_dentry):
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inode = file_dentry.d_inode
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if inode.is_dir():
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ents = file_path.split("/")
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else:
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ents = file_path.split("/")[:-1]
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out_path = os.path.join(self._config.DUMP_DIR, *ents)
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try:
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os.makedirs(out_path)
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except OSError:
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pass
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def calculate(self):
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linux_common.set_plugin_members(self)
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num_files = 0
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if (not self._config.DUMP_DIR or not os.path.isdir(self._config.DUMP_DIR)):
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debug.error("Please specify an existing output dir (--dump-dir)")
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ff = linux_find_file.linux_find_file(self._config)
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for (_, _, file_path, file_dentry) in ff.walk_sbs():
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self._make_path(file_path, file_dentry)
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self._write_file(ff, file_path, file_dentry)
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self._fix_metadata(file_path, file_dentry)
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num_files = num_files + 1
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yield num_files
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def render_text(self, outfd, data):
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for (num_files) in data:
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outfd.write("Recovered %d files\n" % num_files)
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