FM / setools

/usr/lib64/python3.9/site-packages/setools/

/usr/lib64/python3.9/site-packages/setools

Name	Size	Mode	Actions
checker/	-	0755	rm
diff/	-	0755	rm
__pycache__/	-	0755	rm
boolquery.py	1742	0644	edit dl rm
boundsquery.py	1845	0644	edit dl rm
categoryquery.py	1375	0644	edit dl rm
commonquery.py	1613	0644	edit dl rm
constraintquery.py	5110	0644	edit dl rm
defaultquery.py	2340	0644	edit dl rm
descriptors.py	9932	0644	edit dl rm
devicetreeconquery.py	2276	0644	edit dl rm
dta.py	23211	0644	edit dl rm
exception.py	6104	0644	edit dl rm
fsusequery.py	2868	0644	edit dl rm
genfsconquery.py	3260	0644	edit dl rm
ibendportconquery.py	3126	0644	edit dl rm
ibpkeyconquery.py	5006	0644	edit dl rm
infoflow.py	15913	0644	edit dl rm
initsidquery.py	2309	0644	edit dl rm
iomemconquery.py	4095	0644	edit dl rm
ioportconquery.py	4120	0644	edit dl rm
mixins.py	6980	0644	edit dl rm
mlsrulequery.py	4186	0644	edit dl rm
netifconquery.py	2456	0644	edit dl rm
nodeconquery.py	3997	0644	edit dl rm
objclassquery.py	3348	0644	edit dl rm
pcideviceconquery.py	2642	0644	edit dl rm
permmap.py	16585	0644	edit dl rm
perm_map	86114	0644	edit dl rm
pirqconquery.py	2538	0644	edit dl rm
polcapquery.py	1144	0644	edit dl rm
policyrep.cpython-39-x86_64-linux-gnu.so	1522808	0755	edit dl rm
policyrep.pyi	52253	0644	edit dl rm
portconquery.py	4889	0644	edit dl rm
py.typed	0	0644	edit dl rm
query.py	1268	0644	edit dl rm
rbacrulequery.py	5463	0644	edit dl rm
rolequery.py	1997	0644	edit dl rm
sensitivityquery.py	2270	0644	edit dl rm
terulequery.py	8939	0644	edit dl rm
typeattrquery.py	2157	0644	edit dl rm
typequery.py	3021	0644	edit dl rm
userquery.py	4290	0644	edit dl rm
util.py	7773	0644	edit dl rm
__init__.py	3316	0644	edit dl rm

Edit: /usr/lib64/python3.9/site-packages/setools/mlsrulequery.py (4186B)

# Copyright 2014-2015, Tresys Technology, LLC
#
# SPDX-License-Identifier: LGPL-2.1-only
#
import logging
from typing import Iterable

from .descriptors import CriteriaDescriptor, CriteriaSetDescriptor
from .mixins import MatchObjClass
from .policyrep import MLSRule, MLSRuletype
from .query import PolicyQuery
from .util import match_indirect_regex, match_range

class MLSRuleQuery(MatchObjClass, PolicyQuery):

"""
    Query MLS rules.

Parameter:
    policy            The policy to query.

Keyword Parameters/Class attributes:
    ruletype         The list of rule type(s) to match.
    source           The name of the source type/attribute to match.
    source_regex     If true, regular expression matching will
                     be used on the source type/attribute.
    target           The name of the target type/attribute to match.
    target_regex     If true, regular expression matching will
                     be used on the target type/attribute.
    tclass           The object class(es) to match.
    tclass_regex     If true, use a regular expression for
                     matching the rule's object class.
    """

ruletype = CriteriaSetDescriptor(enum_class=MLSRuletype)
    source = CriteriaDescriptor("source_regex", "lookup_type_or_attr")
    source_regex: bool = False
    source_indirect: bool = True
    target = CriteriaDescriptor("target_regex", "lookup_type_or_attr")
    target_regex: bool = False
    target_indirect: bool = True
    tclass = CriteriaSetDescriptor("tclass_regex", "lookup_class")
    tclass_regex: bool = False
    default = CriteriaDescriptor(lookup_function="lookup_range")
    default_overlap: bool = False
    default_subset: bool = False
    default_superset: bool = False
    default_proper: bool = False

def __init__(self, policy, **kwargs) -> None:
        super(MLSRuleQuery, self).__init__(policy, **kwargs)
        self.log = logging.getLogger(__name__)

def results(self) -> Iterable[MLSRule]:
        """Generator which yields all matching MLS rules."""
        self.log.info("Generating MLS rule results from {0.policy}".format(self))
        self.log.debug("Ruletypes: {0.ruletype}".format(self))
        self.log.debug("Source: {0.source!r}, indirect: {0.source_indirect}, "
                       "regex: {0.source_regex}".format(self))
        self.log.debug("Target: {0.target!r}, indirect: {0.target_indirect}, "
                       "regex: {0.target_regex}".format(self))
        self._match_object_class_debug(self.log)
        self.log.debug("Default: {0.default!r}, overlap: {0.default_overlap}, "
                       "subset: {0.default_subset}, superset: {0.default_superset}, "
                       "proper: {0.default_proper}".format(self))

for rule in self.policy.mlsrules():
            #
            # Matching on rule type
            #
            if self.ruletype:
                if rule.ruletype not in self.ruletype:
                    continue

#
            # Matching on source type
            #
            if self.source and not match_indirect_regex(
                    rule.source,
                    self.source,
                    self.source_indirect,
                    self.source_regex):
                continue

#
            # Matching on target type
            #
            if self.target and not match_indirect_regex(
                    rule.target,
                    self.target,
                    self.target_indirect,
                    self.target_regex):
                continue

#
            # Matching on object class
            #
            if not self._match_object_class(rule):
                continue

#
            # Matching on range
            #
            if self.default and not match_range(
                    rule.default,
                    self.default,
                    self.default_subset,
                    self.default_overlap,
                    self.default_superset,
                    self.default_proper):
                continue

# if we get here, we have matched all available criteria
            yield rule

cmd: