mirror of
https://github.com/volatilityfoundation/volatility
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iMHLv2
63 lines
1.9 KiB
Python
63 lines
1.9 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 as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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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 volatility.obj as obj
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import volatility.plugins.mac.common as common
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class mac_dmesg(common.AbstractMacCommand):
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""" Prints the kernel debug buffer """
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def calculate(self):
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common.set_plugin_members(self)
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msgbuf_ptr = obj.Object("Pointer", offset = self.addr_space.profile.get_symbol("_msgbufp"), vm = self.addr_space)
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msgbufp = msgbuf_ptr.dereference_as("msgbuf")
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bufx = msgbufp.msg_bufx
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size = msgbufp.msg_size
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bufc = self.addr_space.read(msgbufp.msg_bufc, size)
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if bufc[bufx] == 0 and bufc[0] != 0:
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## FIXME: can we do this without get_string?
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buf = common.get_string(bufc, self.addr_space)
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else:
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if bufx > size:
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bufx = 0
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# older messages
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buf = bufc[bufx:bufx + size]
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buf = buf + bufc[0:bufx]
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# strip leading NULLs
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while ord(buf[0]) == 0x00:
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buf = buf[1:]
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yield buf
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def render_text(self, outfd, data):
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for buf in data:
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outfd.write("{0}\n".format(buf))
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