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94 lines
3.2 KiB
Python
94 lines
3.2 KiB
Python
#
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# Copyright 2010, 2012-2013 Red Hat, Inc.
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# Cole Robinson <crobinso@redhat.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program 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 General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301 USA.
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from .xmlbuilder import XMLBuilder, XMLProperty
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class Seclabel(XMLBuilder):
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"""
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Class for generating <seclabel> XML
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"""
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TYPE_DYNAMIC = "dynamic"
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TYPE_STATIC = "static"
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TYPE_DEFAULT = "default"
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TYPES = [TYPE_DYNAMIC, TYPE_STATIC]
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MODEL_DEFAULT = "default"
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MODEL_TEST = "testSecurity"
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MODEL_SELINUX = "selinux"
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MODEL_DAC = "dac"
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MODEL_NONE = "none"
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MODELS = [MODEL_SELINUX, MODEL_DAC, MODEL_NONE]
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_XML_ROOT_NAME = "seclabel"
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_XML_PROP_ORDER = ["type", "model", "relabel", "label", "imagelabel"]
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def _guess_secmodel(self):
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# We always want the testSecurity model when running tests
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if (self.MODEL_TEST in
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[x.model for x in self.conn.caps.host.secmodels]):
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return self.MODEL_TEST
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label = self.label
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imagelabel = self.imagelabel
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if not label and not imagelabel:
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for model in self.MODELS:
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if model in [x.model for x in self.conn.caps.host.secmodels]:
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return model
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raise RuntimeError("No supported model found in capabilities")
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lab_len = imglab_len = None
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if label:
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lab_len = min(3, len(label.split(':')))
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if imagelabel:
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imglab_len = min(3, len(imagelabel.split(':')))
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if lab_len and imglab_len and lab_len != imglab_len:
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raise ValueError(_("Label and Imagelabel are incompatible"))
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lab_len = lab_len or imglab_len
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if lab_len == 3:
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return self.MODEL_SELINUX
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elif lab_len == 2:
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return self.MODEL_DAC
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else:
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raise ValueError(_("Unknown model type for label '%s'") % self.label)
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def _get_default_model(self):
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if self.type is None or self.type == self.TYPE_DEFAULT:
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return None
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return self._guess_secmodel()
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model = XMLProperty("./@model",
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default_cb=_get_default_model,
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default_name=MODEL_DEFAULT)
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def _get_default_type(self):
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if self.model is None or self.model == self.MODEL_DEFAULT:
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return None
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return self.TYPE_DYNAMIC
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type = XMLProperty("./@type",
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default_cb=_get_default_type,
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default_name=TYPE_DEFAULT)
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label = XMLProperty("./label")
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imagelabel = XMLProperty("./imagelabel")
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baselabel = XMLProperty("./baselabel")
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relabel = XMLProperty("./@relabel", is_yesno=True)
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