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Add support for security relabeling
virt-install already supports relabeling, but virt-manager doesn't and in some cases, this can cause problems, for example when switching to dynamic labeling with the relabeling turned off. I took the approach of allowing the user to choose, with safe fallbacks to defaults. Deals also with this: https://bugzilla.redhat.com/show_bug.cgi?id=907390
This commit is contained in:
Martin Kletzander
Cole Robinson
parent
46c8ee58dc
commit
b6f0ba364f
@ -1,5 +1,5 @@
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#
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# Copyright (C) 2006-2008 Red Hat, Inc.
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# Copyright (C) 2006-2008, 2013 Red Hat, Inc.
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# Copyright (C) 2006 Daniel P. Berrange <berrange@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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@ -407,6 +407,7 @@ class vmmDetails(vmmGObjectUI):
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"on_overview_clock_changed": (self.enable_apply, EDIT_CLOCK),
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"on_machine_type_changed": (self.enable_apply, EDIT_MACHTYPE),
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"on_security_label_changed": (self.enable_apply, EDIT_SECURITY),
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"on_security_relabel_changed": (self.enable_apply, EDIT_SECURITY),
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"on_security_type_changed": self.security_type_changed,
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"on_config_vcpus_changed": self.config_vcpus_changed,
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@ -786,7 +787,7 @@ class vmmDetails(vmmGObjectUI):
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# Security info tooltips
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util.tooltip_wrapper(self.widget("security-static-info"),
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_("Static SELinux security type tells libvirt to always start the guest process with the specified label. The administrator is responsible for making sure the images are labeled correctly on disk."))
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_("Static SELinux security type tells libvirt to always start the guest process with the specified label. Unless 'relabel' is set, the administrator is responsible for making sure the images are labeled correctly on disk."))
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util.tooltip_wrapper(self.widget("security-dynamic-info"),
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_("The dynamic SELinux security type tells libvirt to automatically pick a unique label for the guest process and guest image, ensuring total isolation of the guest. (Default)"))
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@ -1740,6 +1741,7 @@ class vmmDetails(vmmGObjectUI):
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def security_type_changed(self, button):
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self.enable_apply(EDIT_SECURITY)
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self.widget("security-label").set_sensitive(not button.get_active())
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self.widget("security-relabel").set_sensitive(not button.get_active())
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# Memory
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def config_get_maxmem(self):
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@ -2021,13 +2023,15 @@ class vmmDetails(vmmGObjectUI):
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semodel = None
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setype = "static"
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selabel = self.get_text("security-label")
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relabel = self.widget("security-relabel").get_active()
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if self.widget("security-dynamic").get_active():
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setype = "dynamic"
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relabel = True
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if self.widget("security-type-box").get_property("sensitive"):
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semodel = self.get_text("security-model")
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add_define(self.vm.define_seclabel, semodel, setype, selabel)
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add_define(self.vm.define_seclabel, semodel, setype, selabel, relabel)
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if self.editted(EDIT_DESC):
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desc_widget = self.widget("overview-description")
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@ -2603,7 +2607,7 @@ class vmmDetails(vmmGObjectUI):
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self.set_combo_label("machine-type", machtype)
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# Security details
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semodel, ignore, vmlabel = self.vm.get_seclabel()
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semodel, sectype, vmlabel, relabel = self.vm.get_seclabel()
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caps = self.vm.conn.get_capabilities()
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if caps.host.secmodel and caps.host.secmodel.model:
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@ -2617,11 +2621,19 @@ class vmmDetails(vmmGObjectUI):
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else:
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self.widget("security-type-box").set_sensitive(bool(semodel))
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if self.vm.get_seclabel()[1] == "static":
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if sectype == "static":
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self.widget("security-static").set_active(True)
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self.widget("security-relabel").set_sensitive(True)
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# As "no" is default for relabel with 'static' label and
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# 'dynamic' must have relabel='yes', this will work properly
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# for both False (relabel='no') and None (relabel not
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# specified)
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self.widget("security-relabel").set_active(relabel)
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else:
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self.widget("security-dynamic").set_active(True)
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# Dynamic label type must use resource labeling
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self.widget("security-relabel").set_active(True)
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self.widget("security-relabel").set_sensitive(False)
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self.widget("security-label").set_text(vmlabel)
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def refresh_stats_page(self):
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@ -491,13 +491,19 @@ class vmmDomain(vmmLibvirtObject):
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# Security define methods
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def define_seclabel(self, model, t, label):
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def define_seclabel(self, model, t, label, relabel):
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def change(guest):
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seclabel = guest.seclabel
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seclabel.model = model or None
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if not model:
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return
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if relabel is not None:
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if relabel:
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seclabel.relabel = "yes"
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else:
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seclabel.relabel = "no"
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seclabel.type = t
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if label:
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seclabel.label = label
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@ -937,11 +943,19 @@ class vmmDomain(vmmLibvirtObject):
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return (kernel, initrd, args)
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def get_seclabel(self):
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model = self._get_guest().seclabel.model
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t = self._get_guest().seclabel.type or "dynamic"
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label = self._get_guest().seclabel.label or ""
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seclabel = self._get_guest().seclabel
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model = seclabel.model
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t = seclabel.type or "dynamic"
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label = seclabel.label or ""
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return [model, t, label]
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relabel = getattr(seclabel, "relabel", None)
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if relabel is not None:
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if relabel == "yes":
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relabel = True
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else:
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relabel = False
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return [model, t, label, relabel]
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# XML Device listing
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@ -1746,6 +1746,22 @@
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<property name="position">1</property>
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</packing>
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</child>
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<child>
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<object class="GtkCheckButton" id="security-relabel">
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<property name="label" translatable="yes">relabel</property>
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<property name="visible">True</property>
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<property name="can_focus">True</property>
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<property name="receives_default">False</property>
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<property name="use_action_appearance">False</property>
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<property name="draw_indicator">True</property>
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<signal name="toggled" handler="on_security_relabel_changed" swapped="no"/>
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</object>
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<packing>
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<property name="expand">False</property>
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<property name="fill">False</property>
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<property name="position">2</property>
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</packing>
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</child>
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</object>
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<packing>
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<property name="right_attach">2</property>
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@ -2007,7 +2023,7 @@ I/O:</property>
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<property name="visible">True</property>
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<property name="can_focus">False</property>
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<property name="xalign">0</property>
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<property name="label">30 MB of
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<property name="label">30 MB of
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128 MB</property>
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</object>
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<packing>
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