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 .mixins import MatchContext, MatchName 22 from .query import PolicyQuery 23 24 25 class InitialSIDQuery(MatchName, MatchContext, PolicyQuery): 26 27 """ 28 Initial SID (Initial context) query. 29 30 Parameter: 31 policy The policy to query. 32 33 Keyword Parameters/Class attributes: 34 name The Initial SID name to match. 35 name_regex If true, regular expression matching 36 will be used on the Initial SID name. 37 user The criteria to match the context's user. 38 user_regex If true, regular expression matching 39 will be used on the user. 40 role The criteria to match the context's role. 41 role_regex If true, regular expression matching 42 will be used on the role. 43 type_ The criteria to match the context's type. 44 type_regex If true, regular expression matching 45 will be used on the type. 46 range_ The criteria to match the context's range. 47 range_subset If true, the criteria will match if it is a subset 48 of the context's range. 49 range_overlap If true, the criteria will match if it overlaps 50 any of the context's range. 51 range_superset If true, the criteria will match if it is a superset 52 of the context's range. 53 range_proper If true, use proper superset/subset operations. 54 No effect if not using set operations. 55 """ 56 57 def __init__(self, policy, **kwargs): 58 super(InitialSIDQuery, self).__init__(policy, **kwargs) 59 self.log = logging.getLogger(__name__) 60 61 def results(self): 62 """Generator which yields all matching initial SIDs.""" 63 self.log.info("Generating initial SID results from {0.policy}".format(self)) 64 self._match_name_debug(self.log) 65 self._match_context_debug(self.log) 66 67 for i in self.policy.initialsids(): 68 if not self._match_name(i): 69 continue 70 71 if not self._match_context(i.context): 72 continue 73 74 yield i 75
