#
# Copyright (C) 2006, 2007 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
_ = gettext.translation('setroubleshoot-plugins', '/usr/share/locale', fallback=True).lgettext

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

class plugin(Plugin):
    summary =_('''
    SELinux is preventing the nfs daemon from serving r/o local files to remote clients.
    ''')

    problem_description = _('''
    SELinux has preventing the nfs daemon (nfsd) from read files on
    the local system. If you have not exported these file systems, this
    could signals an intrusion.
    ''')

    fix_description = _('''
    If you want to export file systems using nfs you need to turn on
    the $BOOLEAN boolean: "setsebool -P $BOOLEAN=1".
    ''')

    fix_cmd = 'setsebool -P $BOOLEAN=1'
    
    def __init__(self):
        Plugin.__init__(self, __name__)

    def analyze(self, avc):
        if avc.matches_source_types(['nfsd_t'])       and \
           not avc.matches_target_types(['shadow_t']) and \
           avc.has_any_access_in(['read']):
            # MATCH
            avc.set_template_substitutions(BOOLEAN="nfs_export_all_ro")
            return self.report(avc, _("File System"),
                               self.summary, self.problem_description,
                               self.fix_description, self.fix_cmd)
        else:
            return None