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# Copyright 2016, Tresys Technology, LLC
# Copyright 2018, Chris PeBenito <pebenito@ieee.org>
#
# SPDX-License-Identifier: LGPL-2.1-only
#
from collections import defaultdict
from typing import NamedTuple

from ..policyrep import SELinuxPolicy, Boolean

from .descriptors import DiffResultDescriptor
from .difference import Difference, SymbolWrapper
from .typing import SymbolCache

_bool_cache: SymbolCache[Boolean] = defaultdict(dict)

class ModifiedBoolean(NamedTuple):

"""Difference details for a modified Boolean."""

added_state: bool
    removed_state: bool

def boolean_wrapper(policy: SELinuxPolicy, boolean: Boolean) -> SymbolWrapper[Boolean]:
    """
    Wrap booleans from the specified policy.

This caches results to prevent duplicate wrapper
    objects in memory.
    """
    try:
        return _bool_cache[policy][boolean]
    except KeyError:
        b = SymbolWrapper(boolean)
        _bool_cache[policy][boolean] = b
        return b

class BooleansDifference(Difference):

"""Determine the difference in type attributes between two policies."""

added_booleans = DiffResultDescriptor("diff_booleans")
    removed_booleans = DiffResultDescriptor("diff_booleans")
    modified_booleans = DiffResultDescriptor("diff_booleans")

def diff_booleans(self) -> None:
        """Generate the difference in type attributes between the policies."""

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

self.added_booleans, self.removed_booleans, matched_booleans = \
            self._set_diff(
                (SymbolWrapper(b) for b in self.left_policy.bools()),
                (SymbolWrapper(b) for b in self.right_policy.bools()))

self.modified_booleans = dict()

for left_boolean, right_boolean in matched_booleans:
            # Criteria for modified booleans
            # 1. change to default state
            if left_boolean.state != right_boolean.state:
                self.modified_booleans[left_boolean] = ModifiedBoolean(right_boolean.state,
                                                                       left_boolean.state)

#
    # Internal functions
    #
    def _reset_diff(self) -> None:
        """Reset diff results on policy changes."""
        self.log.debug("Resetting Boolean differences")
        self.added_booleans = None
        self.removed_booleans = None
        self.modified_booleans = None

Batal

⬅ setools 31 item

Nama	Tipe	Ukuran	Diubah	Aksi
📁__pycache__	dir	—	2025-02-27 15:06	📂 Buka
🐍__init__.py	py	2.5 KB	2023-12-07 15:49	✏️ 👁️
🐍bool.py	py	2.4 KB	2023-12-07 15:49	✏️ 👁️
🐍bounds.py	py	3.7 KB	2023-12-07 15:49	✏️ 👁️
🐍commons.py	py	2.1 KB	2023-12-07 15:49	✏️ 👁️
🐍conditional.py	py	1.2 KB	2023-12-07 15:49	✏️ 👁️
🐍constraints.py	py	8.2 KB	2023-12-07 15:49	✏️ 👁️
🐍context.py	py	1.4 KB	2023-12-07 15:49	✏️ 👁️
🐍default.py	py	3.5 KB	2023-12-07 15:49	✏️ 👁️
🐍descriptors.py	py	1 KB	2023-12-07 15:49	✏️ 👁️
🐍difference.py	py	5.4 KB	2023-12-07 15:49	✏️ 👁️
🐍fsuse.py	py	2.5 KB	2023-12-07 15:49	✏️ 👁️
🐍genfscon.py	py	2.7 KB	2023-12-07 15:49	✏️ 👁️
🐍ibendportcon.py	py	2.6 KB	2023-12-07 15:49	✏️ 👁️
🐍ibpkeycon.py	py	2.6 KB	2023-12-07 15:49	✏️ 👁️
🐍initsid.py	py	2 KB	2023-12-07 15:49	✏️ 👁️
🐍mls.py	py	9.9 KB	2023-12-07 15:49	✏️ 👁️
🐍mlsrules.py	py	4.5 KB	2023-12-07 15:49	✏️ 👁️
🐍netifcon.py	py	3.1 KB	2023-12-07 15:49	✏️ 👁️
🐍nodecon.py	py	2.6 KB	2023-12-07 15:49	✏️ 👁️
🐍objclass.py	py	3.1 KB	2023-12-07 15:49	✏️ 👁️
🐍polcap.py	py	1.1 KB	2023-12-07 15:49	✏️ 👁️
🐍portcon.py	py	2.6 KB	2023-12-07 15:49	✏️ 👁️
🐍properties.py	py	1.8 KB	2023-12-07 15:49	✏️ 👁️
🐍rbacrules.py	py	6.4 KB	2023-12-07 15:49	✏️ 👁️
🐍roles.py	py	2.7 KB	2023-12-07 15:49	✏️ 👁️
🐍terules.py	py	24.1 KB	2023-12-07 15:49	✏️ 👁️
🐍typeattr.py	py	2.8 KB	2023-12-07 15:49	✏️ 👁️
🐍types.py	py	4.2 KB	2023-12-07 15:49	✏️ 👁️
🐍typing.py	py	458 B	2023-12-07 15:49	✏️ 👁️
🐍users.py	py	5.4 KB	2023-12-07 15:49	✏️ 👁️

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