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/rbacrulequery.py (5463B)

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

from . import mixins, query
from .descriptors import CriteriaDescriptor, CriteriaSetDescriptor
from .exception import InvalidType, RuleUseError
from .policyrep import AnyRBACRule, RBACRuletype, Role, TypeOrAttr
from .util import match_indirect_regex

class RBACRuleQuery(mixins.MatchObjClass, query.PolicyQuery):

"""
    Query the RBAC 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 role/attribute to match.
    source_indirect If true, members of an attribute will be
                    matched rather than the attribute itself.
    source_regex    If true, regular expression matching will
                    be used on the source role/attribute.
                    Obeys the source_indirect option.
    target          The name of the target role/attribute to match.
    target_indirect If true, members of an attribute will be
                    matched rather than the attribute itself.
    target_regex    If true, regular expression matching will
                    be used on the target role/attribute.
                    Obeys target_indirect option.
    tclass          The object class(es) to match.
    tclass_regex    If true, use a regular expression for
                    matching the rule's object class.
    default         The name of the default role to match.
    default_regex   If true, regular expression matching will
                    be used on the default role.
    """

ruletype = CriteriaSetDescriptor(enum_class=RBACRuletype)
    source = CriteriaDescriptor("source_regex", "lookup_role")
    source_regex: bool = False
    source_indirect: bool = True
    _target: Optional[Union[Pattern, Role, TypeOrAttr]] = None
    target_regex: bool = False
    target_indirect: bool = True
    tclass = CriteriaSetDescriptor("tclass_regex", "lookup_class")
    tclass_regex: bool = False
    default = CriteriaDescriptor("default_regex", "lookup_role")
    default_regex: bool = False

@property
    def target(self) -> Optional[Union[Pattern, Role, TypeOrAttr]]:
        return self._target

@target.setter
    def target(self, value: Optional[Union[str, Role, TypeOrAttr]]) -> None:
        if not value:
            self._target = None
        elif self.target_regex:
            self._target = re.compile(value)
        else:
            try:
                self._target = self.policy.lookup_type_or_attr(cast(Union[str, TypeOrAttr], value))
            except InvalidType:
                self._target = self.policy.lookup_role(cast(Union[str, Role], value))

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

def results(self) -> Iterable[AnyRBACRule]:
        """Generator which yields all matching RBAC rules."""
        self.log.info("Generating RBAC 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}, regex: {0.default_regex}".format(self))

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

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

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

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

#
            # Matching on default role
            #
            if self.default:
                try:
                    # because default role is always a single
                    # role, hard-code indirect to True
                    # so the criteria can be an attribute
                    if not match_indirect_regex(
                            rule.default,
                            self.default,
                            True,
                            self.default_regex):
                        continue
                except RuleUseError:
                    continue

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

cmd: