[Xen-devel] [PATCH v3 6/6] libxl: assign a default ssidref (XSM label) to guests

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

We have now arranged for SECINITSID_DOMU and SECINITSID_DOMDM to be
defined (correspondng to system_u:system_r:domU_t and
system_u:system_r:dm_dom_t respectively in the default policy). Use
these as the default for the SSID of every (stub)domain.

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Cc: Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>
Cc: Wei.Liu2@xxxxxxxxxx
---
v2: Set ssidref rather than label. It is no longer necessary to
    reorder things in libxl.c.
v3: Set device_model_ssidref too if stubdoms are enabled.
    I didn't apply Wei's ack due to this change.
---
 tools/libxl/libxl_create.c |    9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
index f0da7dc..853c252 100644
--- a/tools/libxl/libxl_create.c
+++ b/tools/libxl/libxl_create.c
@@ -25,6 +25,8 @@
 #include <xen/hvm/hvm_info_table.h>
 #include <xen/hvm/e820.h>
 
+#include <xen-xsm/flask/flask.h>
+
 int libxl__domain_create_info_setdefault(libxl__gc *gc,
                                          libxl_domain_create_info *c_info)
 {
@@ -42,6 +44,9 @@ int libxl__domain_create_info_setdefault(libxl__gc *gc,
     libxl_defbool_setdefault(&c_info->run_hotplug_scripts, true);
     libxl_defbool_setdefault(&c_info->driver_domain, false);
 
+    if (!c_info->ssidref)
+        c_info->ssidref = SECINITSID_DOMU;
+
     return 0;
 }
 
@@ -111,6 +116,10 @@ int libxl__domain_build_info_setdefault(libxl__gc *gc,
 
     libxl_defbool_setdefault(&b_info->device_model_stubdomain, false);
 
+    if (libxl_defbool_val(b_info->device_model_stubdomain) &&
+        !b_info->device_model_ssidref)
+        b_info->device_model_ssidref = SECINITSID_DOMDM;
+
     if (!b_info->device_model_version) {
         if (b_info->type == LIBXL_DOMAIN_TYPE_HVM) {
             if (libxl_defbool_val(b_info->device_model_stubdomain)) {
-- 
1.7.10.4


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