晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。   林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。   见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝)   既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。   南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。 sh-3ll

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"""The SETools SELinux policy analysis library."""
# Copyright 2014-2015, Tresys Technology, LLC
# Copyright 2016, Chris PeBenito <pebenito@ieee.org>
#
# SPDX-License-Identifier: LGPL-2.1-only
#
try:
    import pkg_resources
    # pylint: disable=no-member
    __version__ = pkg_resources.get_distribution("setools").version
except ImportError:  # pragma: no cover
    __version__ = "unknown"

import logging

# Python classes for policy representation
from .policyrep import SELinuxPolicy, BoundsRuletype, ConstraintRuletype, DefaultRuletype, \
    DefaultRangeValue, DefaultValue, FSUseRuletype, HandleUnknown, IbpkeyconRange, MLSRuletype, \
    NodeconIPVersion, PolicyTarget, PortconProtocol, RBACRuletype, TERuletype

# Policy representation classes for type checking purposes.  Few can be instantiated
# outside of this library.
from .policyrep import AnyConstraint, AnyDefault, AnyRBACRule, AnyTERule, AVRule, AVRuleXperm, \
    Boolean, Bounds, Category, Common, Conditional, Constraint, Context, Default, DefaultRange, \
    Devicetreecon, FSUse, FileNameTERule, Genfscon, Ibendportcon, Ibpkeycon, InitialSID, \
    IoctlSet, Iomemcon, IomemconRange, Ioportcon, IoportconRange, Level, LevelDecl, MLSRule, \
    Netifcon, Nodecon, ObjClass, Pcidevicecon, Pirqcon, PolicyCapability, Portcon, PortconRange, \
    Range, Role, RoleAllow, RoleTransition, Sensitivity, TERule, TruthTableRow, Type, \
    TypeAttribute, User, Validatetrans

# Exceptions
from . import exception

# Base class for policy queries for type checking purposes
from .query import PolicyQuery

# utility functions
from .util import xperm_str_to_tuple_ranges

# Component Queries
from .boolquery import BoolQuery
from .categoryquery import CategoryQuery
from .commonquery import CommonQuery
from .objclassquery import ObjClassQuery
from .polcapquery import PolCapQuery
from .rolequery import RoleQuery
from .sensitivityquery import SensitivityQuery
from .typequery import TypeQuery
from .typeattrquery import TypeAttributeQuery
from .userquery import UserQuery

# Rule Queries
from .mlsrulequery import MLSRuleQuery
from .rbacrulequery import RBACRuleQuery
from .terulequery import TERuleQuery

# Constraint queries
from .constraintquery import ConstraintQuery

# Other queries
from .boundsquery import BoundsQuery
from .defaultquery import DefaultQuery

# In-policy Context Queries
from .fsusequery import FSUseQuery
from .genfsconquery import GenfsconQuery
from .ibendportconquery import IbendportconQuery
from .ibpkeyconquery import IbpkeyconQuery
from .initsidquery import InitialSIDQuery
from .netifconquery import NetifconQuery
from .nodeconquery import NodeconQuery
from .portconquery import PortconQuery
from .ioportconquery import IoportconQuery
from .iomemconquery import IomemconQuery
from .pirqconquery import PirqconQuery
from .pcideviceconquery import PcideviceconQuery
from .devicetreeconquery import DevicetreeconQuery

# Information Flow Analysis
from .infoflow import InfoFlowAnalysis
from .permmap import PermissionMap, RuleWeight, Mapping

# Domain Transition Analysis
from .dta import DomainTransitionAnalysis, DomainEntrypoint, DomainTransition

# Policy difference
from .diff import PolicyDifference

# Policy checker
from .checker import PolicyChecker

logging.getLogger(__name__).addHandler(logging.NullHandler())