mirror of
https://github.com/SELinuxProject/setools
synced 2025-04-01 00:06:19 +00:00
98 lines
2.4 KiB
Python
98 lines
2.4 KiB
Python
# Copyright 2014, 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/>.
|
|
#
|
|
import setools.qpol as qpol
|
|
|
|
import symbol
|
|
|
|
|
|
class InvalidRuleUse(Exception):
|
|
|
|
"""
|
|
Exception when getting incorrect parameters for a rule. For
|
|
example, trying to get the permissions of a rule that has no
|
|
permissions.
|
|
"""
|
|
pass
|
|
|
|
|
|
class RuleNotConditional(Exception):
|
|
|
|
"""
|
|
Exception when getting the conditional expression for rules
|
|
that are unconditional (not conditional).
|
|
"""
|
|
pass
|
|
|
|
|
|
class PolicyRule(symbol.PolicySymbol):
|
|
|
|
"""This is base class for policy rules."""
|
|
|
|
def __str__(self):
|
|
raise NotImplementedError
|
|
|
|
@property
|
|
def ruletype(self):
|
|
"""
|
|
The rule type for the rule. This should be overridden by
|
|
subclasses.
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
@property
|
|
def source(self):
|
|
"""
|
|
The source for the rule. This should be overridden by
|
|
subclasses.
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
@property
|
|
def target(self):
|
|
"""
|
|
The target for the rule. This should be overridden by
|
|
subclasses.
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
@property
|
|
def tclass(self):
|
|
"""
|
|
The object class for the rule. This should be overridden by
|
|
subclasses.
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
@property
|
|
def default(self):
|
|
"""
|
|
The default for the rule. This should be overridden by
|
|
subclasses.
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
@property
|
|
def conditional(self):
|
|
"""The conditional expression for this rule."""
|
|
# Most rules cannot be conditional.
|
|
raise RuleNotConditional
|
|
|
|
def statement(self):
|
|
return str(self)
|