/usr/lib/python2.7/dist-packages/rekall/plugins/linux/dmesg.py is in python-rekall-core 1.6.0+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | # Rekall Memory Forensics
#
# Copyright 2013 Google Inc. All Rights Reserved.
#
# 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: Digital Forensics Solutions
"""
from rekall.plugins.linux import common
class LinuxDmesg(common.LinuxPlugin):
'''Gathers dmesg buffer.'''
__name = "dmesg"
table_header = [
dict(name="timestamp", width=16),
dict(name="facility", width=2),
dict(name="level", width=2),
dict(name="message", width=80)
]
def collect(self):
if self.profile.get_obj_size("log"):
# Linux 3.x uses a log struct to keep log messages. In this case the
# log is a pointer to a variable length array of log messages.
dmesg = self.profile.get_constant_object(
"log_buf",
vm=self.kernel_address_space,
target="Pointer",
target_args=dict(
target="ListArray",
target_args=dict(
target="log",
maximum_size=self.profile.get_constant("log_buf_len")
)
)
)
for message in dmesg:
yield (message.ts_nsec / 1e9, message.facility, message.level,
message.message)
else:
# Older kernels just use the area as a single unicode string.
dmesg = self.profile.get_constant_object(
"log_buf",
vm=self.kernel_address_space,
target="Pointer",
target_args=dict(
target="UnicodeString",
target_args=dict(
length=int(self.profile.get_constant_object(
"log_buf_len", target="unsigned int"))
)
)
)
yield dict(message=dmesg.deref())
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