mirror of
https://github.com/SELinuxProject/setools
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79 lines
3.2 KiB
Python
79 lines
3.2 KiB
Python
# Copyright 2014-2015, Tresys Technology, LLC
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#
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# This file is part of SETools.
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#
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# SETools is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as
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# published by the Free Software Foundation, either version 2.1 of
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# the License, or (at your option) any later version.
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#
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# SETools is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with SETools. If not, see
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# <http://www.gnu.org/licenses/>.
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#
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import logging
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from . import compquery
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from . import contextquery
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class InitialSIDQuery(compquery.ComponentQuery, contextquery.ContextQuery):
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"""
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Initial SID (Initial 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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name The Initial SID name to match.
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name_regex If true, regular expression matching
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will be used on the Initial SID name.
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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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def __init__(self, policy, **kwargs):
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super(InitialSIDQuery, self).__init__(policy, **kwargs)
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self.log = logging.getLogger(__name__)
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def results(self):
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"""Generator which yields all matching initial SIDs."""
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self.log.info("Generating results from {0.policy}".format(self))
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self.log.debug("Name: {0.name!r}, regex: {0.name_regex}".format(self))
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self.log.debug("User: {0.user!r}, regex: {0.user_regex}".format(self))
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self.log.debug("Role: {0.role!r}, regex: {0.role_regex}".format(self))
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self.log.debug("Type: {0.type_!r}, regex: {0.type_regex}".format(self))
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self.log.debug("Range: {0.range_!r}, subset: {0.range_subset}, overlap: {0.range_overlap}, "
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"superset: {0.range_superset}, proper: {0.range_proper}".format(self))
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for i in self.policy.initialsids():
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if not self._match_name(i):
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continue
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if not self._match_context(i.context):
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continue
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yield i
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