| # Copyright 2014-2015, Tresys Technology, LLC |
| # |
| # This file is part of SETools. |
| # |
| # SETools is free software: you can redistribute it and/or modify |
| # it under the terms of the GNU Lesser General Public License as |
| # published by the Free Software Foundation, either version 2.1 of |
| # the License, or (at your option) any later version. |
| # |
| # SETools is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU Lesser General Public License for more details. |
| # |
| # You should have received a copy of the GNU Lesser General Public |
| # License along with SETools. If not, see |
| # <http://www.gnu.org/licenses/>. |
| # |
| import logging |
| |
| from .mixins import MatchContext, MatchName |
| from .query import PolicyQuery |
| from .util import match_regex |
| |
| |
| class NetifconQuery(MatchContext, MatchName, PolicyQuery): |
| |
| """ |
| Network interface context query. |
| |
| Parameter: |
| policy The policy to query. |
| |
| Keyword Parameters/Class attributes: |
| name The name of the network interface to match. |
| name_regex If true, regular expression matching will |
| be used for matching the name. |
| 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. |
| """ |
| |
| def __init__(self, policy, **kwargs): |
| super(NetifconQuery, self).__init__(policy, **kwargs) |
| self.log = logging.getLogger(__name__) |
| |
| def results(self): |
| """Generator which yields all matching netifcons.""" |
| self.log.info("Generating netifcon results from {0.policy}".format(self)) |
| self._match_name_debug(self.log) |
| self._match_context_debug(self.log) |
| |
| for netif in self.policy.netifcons(): |
| if self.name and not match_regex( |
| netif.netif, |
| self.name, |
| self.name_regex): |
| continue |
| |
| if not self._match_context(netif.context): |
| continue |
| |
| yield netif |