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      1 # Copyright 2014-2015, Tresys Technology, LLC
      2 #
      3 # This file is part of SETools.
      4 #
      5 # SETools is free software: you can redistribute it and/or modify
      6 # it under the terms of the GNU Lesser General Public License as
      7 # published by the Free Software Foundation, either version 2.1 of
      8 # the License, or (at your option) any later version.
      9 #
     10 # SETools is distributed in the hope that it will be useful,
     11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13 # GNU Lesser General Public License for more details.
     14 #
     15 # You should have received a copy of the GNU Lesser General Public
     16 # License along with SETools.  If not, see
     17 # <http://www.gnu.org/licenses/>.
     18 #
     19 import logging
     20 
     21 from . import compquery
     22 
     23 
     24 class PolCapQuery(compquery.ComponentQuery):
     25 
     26     """
     27     Query SELinux policy capabilities
     28 
     29     Parameter:
     30     policy      The policy to query.
     31 
     32     Keyword Parameters/Class attributes:
     33     name        The name of the policy capability to match.
     34     name_regex  If true, regular expression matching will
     35                 be used for matching the name.
     36     """
     37 
     38     def results(self):
     39         """Generator which yields all matching policy capabilities."""
     40         self.log.info("Generating results from {0.policy}".format(self))
     41         self.log.debug("Name: {0.name!r}, regex: {0.name_regex}".format(self))
     42 
     43         for cap in self.policy.polcaps():
     44             if not self._match_name(cap):
     45                 continue
     46 
     47             yield cap
     48