/usr/lib64/python3.9/site-packages/setools
Edit: /usr/lib64/python3.9/site-packages/setools/ibpkeyconquery.py (5006B)
# Copyright 2018, Chris PeBenito
#
# SPDX-License-Identifier: LGPL-2.1-only
#
from ipaddress import IPv6Address
import logging
from typing import Iterable, Optional, Tuple, Union
from .mixins import MatchContext
from .policyrep import Ibpkeycon, IbpkeyconRange
from .query import PolicyQuery
from .util import match_range
class IbpkeyconQuery(MatchContext, PolicyQuery):
"""
Infiniband pkey context query.
Parameter:
policy The policy to query.
Keyword Parameters/Class attributes:
subnet_prefix A subnet prefix to match.
pkeys A 2-tuple of the pkey range to match. (Set both to
the same value for a single pkey)
pkeys_subset If true, the criteria will match if it is a subset
of the ibpkeycon's range.
pkeys_overlap If true, the criteria will match if it overlaps
any of the ibpkeycon's range.
pkeys_superset If true, the criteria will match if it is a superset
of the ibpkeycon's range.
pkeys_proper If true, use proper superset/subset operations.
No effect if not using set operations.
user The criteria to match the context's user.
user_regex If true, regular expression matching
will be used on the user.
role The criteria to match the context's role.
role_regex If true, regular expression matching
will be used on the role.
type_ The criteria to match the context's type.
type_regex If true, regular expression matching
will be used on the type.
range_ The criteria to match the context's range.
range_subset If true, the criteria will match if it is a subset
of the context's range.
range_overlap If true, the criteria will match if it overlaps
any of the context's range.
range_superset If true, the criteria will match if it is a superset
of the context's range.
range_proper If true, use proper superset/subset operations.
No effect if not using set operations.
"""
_subnet_prefix: Optional[IPv6Address] = None
_pkeys: Optional[IbpkeyconRange] = None
pkeys_subset: bool = False
pkeys_overlap: bool = False
pkeys_superset: bool = False
pkeys_proper: bool = False
def __init__(self, policy, **kwargs):
super(IbpkeyconQuery, self).__init__(policy, **kwargs)
self.log = logging.getLogger(__name__)
@property
def pkeys(self) -> Optional[IbpkeyconRange]:
return self._pkeys
@pkeys.setter
def pkeys(self, value: Optional[Tuple[int, int]]) -> None:
if value is not None:
pending_pkeys = IbpkeyconRange(*value)
if pending_pkeys.low < 1 or pending_pkeys.high < 1:
raise ValueError("Pkeys must be positive: {0.low:#x}-{0.high:#x}".
format(pending_pkeys))
if pending_pkeys.low > 0xffff or pending_pkeys.high > 0xffff:
raise ValueError("Pkeys maximum is 0xffff: {0.low:#x}-{0.high:#x}".
format(pending_pkeys))
if pending_pkeys.low > pending_pkeys.high:
raise ValueError(
"The low pkey must be smaller than the high pkey: {0.low:#x}-{0.high:#x}".
format(pending_pkeys))
self._pkeys = pending_pkeys
else:
self._pkeys = None
@property
def subnet_prefix(self) -> Optional[IPv6Address]:
return self._subnet_prefix
@subnet_prefix.setter
def subnet_prefix(self, value: Optional[Union[str, IPv6Address]]) -> None:
if value:
self._subnet_prefix = IPv6Address(value)
else:
self._subnet_prefix = None
def results(self) -> Iterable[Ibpkeycon]:
"""Generator which yields all matching ibpkeycons."""
self.log.info("Generating ibpkeycon results from {0.policy}".format(self))
self.log.debug("Subnet Prefix: {0.subnet_prefix}".format(self))
self.log.debug("Pkeys: {0.pkeys}, overlap: {0.pkeys_overlap}, "
"subset: {0.pkeys_subset}, superset: {0.pkeys_superset}, "
"proper: {0.pkeys_proper}".format(self))
self._match_context_debug(self.log)
for pk in self.policy.ibpkeycons():
if self.subnet_prefix is not None and self.subnet_prefix != pk.subnet_prefix:
continue
if self.pkeys and not match_range(
pk.pkeys,
self.pkeys,
self.pkeys_subset,
self.pkeys_overlap,
self.pkeys_superset,
self.pkeys_proper):
continue
if not self._match_context(pk.context):
continue
yield pk