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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
__init__.py	3.15 KB	-rw-r--r--
bool.py	2.83 KB	-rw-r--r--
bounds.py	4.1 KB	-rw-r--r--
commons.py	2.82 KB	-rw-r--r--
conditional.py	1.68 KB	-rw-r--r--
constraints.py	8.64 KB	-rw-r--r--
context.py	1.89 KB	-rw-r--r--
default.py	4.14 KB	-rw-r--r--
descriptors.py	1.6 KB	-rw-r--r--
difference.py	5.66 KB	-rw-r--r--
fsuse.py	3.11 KB	-rw-r--r--
genfscon.py	3.25 KB	-rw-r--r--
ibendportcon.py	3.28 KB	-rw-r--r--
ibpkeycon.py	3.29 KB	-rw-r--r--
initsid.py	2.48 KB	-rw-r--r--
mls.py	10.31 KB	-rw-r--r--
mlsrules.py	4.8 KB	-rw-r--r--
netifcon.py	3.71 KB	-rw-r--r--
nodecon.py	3.21 KB	-rw-r--r--
objclass.py	3.6 KB	-rw-r--r--
polcap.py	1.7 KB	-rw-r--r--
portcon.py	3.19 KB	-rw-r--r--
properties.py	2.33 KB	-rw-r--r--
rbacrules.py	6.42 KB	-rw-r--r--
roles.py	3.2 KB	-rw-r--r--
terules.py	23.71 KB	-rw-r--r--
typeattr.py	3.28 KB	-rw-r--r--
types.py	4.86 KB	-rw-r--r--
users.py	5.4 KB	-rw-r--r--

Code Editor : fsuse.py

# Copyright 2016, Tresys Technology, LLC
#
# This file is part of SETools.
#
# SETools is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 2.1 of
# the License, or (at your option) any later version.
#
# SETools 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with SETools.  If not, see
# <http://www.gnu.org/licenses/>.
#
from collections import namedtuple

from .context import ContextWrapper
from .descriptors import DiffResultDescriptor
from .difference import Difference, Wrapper

modified_fsuse_record = namedtuple("modified_fsuse", ["rule",
                                                      "added_context",
                                                      "removed_context"])

class FSUsesDifference(Difference):

"""Determine the difference in fs_use_* rules between two policies."""

added_fs_uses = DiffResultDescriptor("diff_fs_uses")
    removed_fs_uses = DiffResultDescriptor("diff_fs_uses")
    modified_fs_uses = DiffResultDescriptor("diff_fs_uses")

def diff_fs_uses(self):
        """Generate the difference in fs_use rules between the policies."""

self.log.info(
            "Generating fs_use_* differences from {0.left_policy} to {0.right_policy}".
            format(self))

self.added_fs_uses, self.removed_fs_uses, matched = self._set_diff(
            (FSUseWrapper(fs) for fs in self.left_policy.fs_uses()),
            (FSUseWrapper(fs) for fs in self.right_policy.fs_uses()))

self.modified_fs_uses = []

for left_rule, right_rule in matched:
            # Criteria for modified rules
            # 1. change to context
            if ContextWrapper(left_rule.context) != ContextWrapper(right_rule.context):
                self.modified_fs_uses.append(modified_fsuse_record(left_rule,
                                                                   right_rule.context,
                                                                   left_rule.context))

#
    # Internal functions
    #
    def _reset_diff(self):
        """Reset diff results on policy changes."""
        self.log.debug("Resetting fs_use_* rule differences")
        self.added_fs_uses = None
        self.removed_fs_uses = None
        self.modified_fs_uses = None

class FSUseWrapper(Wrapper):

"""Wrap fs_use_* rules to allow set operations."""

__slots__ = ("ruletype", "fs", "context")

def __init__(self, rule):
        self.origin = rule
        self.ruletype = rule.ruletype
        self.fs = rule.fs
        self.context = ContextWrapper(rule.context)
        self.key = hash(rule)

def __hash__(self):
        return self.key

def __lt__(self, other):
        return self.key < other.key

def __eq__(self, other):
        return self.ruletype == other.ruletype and self.fs == other.fs

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Code Editor : fsuse.py