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https://github.com/SELinuxProject/setools
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82 lines
2.5 KiB
Python
82 lines
2.5 KiB
Python
# Derived from portconquery.py
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#
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# SPDX-License-Identifier: LGPL-2.1-only
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#
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import logging
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from typing import Iterable, Optional
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from .mixins import MatchContext
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from .policyrep import Pirqcon
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from .query import PolicyQuery
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class PirqconQuery(MatchContext, PolicyQuery):
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"""
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Pirqcon context query.
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Parameter:
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policy The policy to query.
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Keyword Parameters/Class attributes:
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irq A single IRQ value.
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user The criteria to match the context's user.
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user_regex If true, regular expression matching
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will be used on the user.
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role The criteria to match the context's role.
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role_regex If true, regular expression matching
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will be used on the role.
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type_ The criteria to match the context's type.
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type_regex If true, regular expression matching
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will be used on the type.
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range_ The criteria to match the context's range.
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range_subset If true, the criteria will match if it is a subset
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of the context's range.
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range_overlap If true, the criteria will match if it overlaps
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any of the context's range.
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range_superset If true, the criteria will match if it is a superset
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of the context's range.
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range_proper If true, use proper superset/subset operations.
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No effect if not using set operations.
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"""
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_irq: Optional[int] = None
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@property
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def irq(self) -> Optional[int]:
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return self._irq
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@irq.setter
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def irq(self, value: Optional[int]) -> None:
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if value:
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if value < 1:
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raise ValueError("The IRQ must be positive: {0}".format(value))
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self._irq = value
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else:
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self._irq = None
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def __init__(self, policy, **kwargs) -> None:
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super(PirqconQuery, self).__init__(policy, **kwargs)
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self.log = logging.getLogger(__name__)
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def results(self) -> Iterable[Pirqcon]:
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"""Generator which yields all matching pirqcons."""
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self.log.info("Generating results from {0.policy}".format(self))
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self.log.debug("IRQ: {0.irq!r}".format(self))
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self._match_context_debug(self.log)
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for pirqcon in self.policy.pirqcons():
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if self.irq and self.irq != pirqcon.irq:
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continue
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if not self._match_context(pirqcon.context):
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continue
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yield pirqcon
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