[PATCH 05/15] flask/policy: xenstore stubdom policy

From: Daniel De Graaf <dgdegra@tycho.nsa.gov>
To: xen-devel@lists.xen.org
Cc: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Subject: [PATCH 05/15] flask/policy: xenstore stubdom policy
Date: Thu,  9 Jun 2016 10:47:08 -0400	[thread overview]
Message-ID: <1465483638-9489-6-git-send-email-dgdegra@tycho.nsa.gov> (raw)
In-Reply-To: <1465483638-9489-1-git-send-email-dgdegra@tycho.nsa.gov>

This adds the xenstore_t type to the example policy for use by a
xenstore stub domain.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
---
 tools/flask/policy/modules/modules.conf |  3 +++
 tools/flask/policy/modules/xenstore.te  | 24 ++++++++++++++++++++++++
 2 files changed, 27 insertions(+)
 create mode 100644 tools/flask/policy/modules/xenstore.te

diff --git a/tools/flask/policy/modules/modules.conf b/tools/flask/policy/modules/modules.conf
index 9aac6a0..dd10884 100644
--- a/tools/flask/policy/modules/modules.conf
+++ b/tools/flask/policy/modules/modules.conf
@@ -33,6 +33,9 @@ nomigrate = on
 # Example device policy.  Also see policy/device_contexts.
 nic_dev = on
 
+# Xenstore stub domain.
+xenstore = on
+
 # This allows any domain type to be created using the system_r role.  When it is
 # disabled, domains not using the default types (dom0_t, domU_t, dm_dom_t) must
 # use another role (such as vm_r from the vm_role module below).
diff --git a/tools/flask/policy/modules/xenstore.te b/tools/flask/policy/modules/xenstore.te
new file mode 100644
index 0000000..519566a
--- /dev/null
+++ b/tools/flask/policy/modules/xenstore.te
@@ -0,0 +1,24 @@
+################################################################################
+#
+# Xenstore stubdomain
+#
+################################################################################
+declare_singleton_domain(xenstore_t)
+create_domain(dom0_t, xenstore_t)
+manage_domain(dom0_t, xenstore_t)
+
+# Xenstore requires the global VIRQ for domain destroy operations
+allow dom0_t xenstore_t:domain set_virq_handler;
+# Current xenstore stubdom uses the hypervisor console, not "xl console"
+allow xenstore_t xen_t:xen writeconsole;
+# Xenstore queries domaininfo on all domains
+allow xenstore_t domain_type:domain getdomaininfo;
+
+# As a shortcut, the following 3 rules are used instead of adding a domain_comms
+# rule between xenstore_t and every domain type that talks to xenstore
+create_channel(xenstore_t, domain_type, xenstore_t_channel)
+allow event_type xenstore_t: event bind;
+allow xenstore_t domain_type:grant { map_read map_write unmap };
+
+# Xenstore is a utility domain, so it should use the system role
+role system_r types xenstore_t;
-- 
2.5.5


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
