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Filename : qemu_blk_image.py
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#
# Copyright (C) 2008 Red Hat, Inc.
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
#

import gettext
translation=gettext.translation('setroubleshoot-plugins', fallback=True)
_=translation.gettext

from setroubleshoot.util import *
from setroubleshoot.Plugin import Plugin

class plugin(Plugin):
    summary =_('''
    SELinux is preventing $SOURCE_PATH "$ACCESS" access to $TARGET_PATH.
    ''')

    problem_description = _('''
    SELinux denied svirt access to the block device $TARGET_PATH.
    If this is a virtualization image, it needs to be labeled with a virtualization file context (virt_image_t). You can relabel $TARGET_PATH to be virt_image_t using chcon.  You also need to execute semanage fcontext -a -t virt_image_t '$FIX_TARGET_PATH' to add this
    new path to the system defaults. If you did not intend to use $TARGET_PATH as a virtualization
    image it could indicate either a bug or an intrusion attempt.
    ''')

    fix_description = _('''
    You can alter the file context by executing chcon -t virt_image_t '$TARGET_PATH'
    You must also change the default file context files on the system in order to preserve them even on a full relabel.  "semanage fcontext -a -t virt_image_t '$FIX_TARGET_PATH'"
    ''')

    fix_cmd = "/usr/bin/chcon -t virt_image_t '$TARGET_PATH'"

    then_text = _("You need to change the label on '$FIX_TARGET_PATH'")
    do_text = _("""# semanage fcontext -a -t virt_image_t '$FIX_TARGET_PATH'
# restorecon -v '$FIX_TARGET_PATH'""")

    def __init__(self):
        Plugin.__init__(self, __name__)
        self.set_priority(60)
        self.fixable=True
        self.button_text = _("Set the image label to virt_image_t.")

    def analyze(self, avc):
        if (avc.matches_source_types(['svirt_t']) and
           avc.all_accesses_are_in(avc.rw_file_perms + avc.r_dir_perms) and
           avc.has_tclass_in(['blk_file'])):
            # MATCH
            return self.report()
        else:
            return None