[libvirt] [PATCH] libxl: provide impl for nodeGetSecurityModel

[Jim Fehlig]

Currently, the libxl driver does not support any security drivers.
When the qemu driver has no security driver configued,
nodeGetSecurityModel succeeds but returns an empty virSecurityModel
object.  Do the same in the libxl driver instead of reporting

this function is not supported by the connection driver:
virNodeGetSecurityModel

Signed-off-by: Jim Fehlig <jfehlig at suse.com>
---

I was reminded of this today when looking through a libvirtd log.
The system was running a test script that among other things
called 'virsh dominfo'.  Each time dominfo was called, the log
was spammed with "this function is not supported by the connection
driver: virNodeGetSecurityModel".

 src/libxl/libxl_driver.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c
index 60c139e..d6b20ae 100644
--- a/src/libxl/libxl_driver.c
+++ b/src/libxl/libxl_driver.c
@@ -5027,6 +5027,23 @@ libxlDomainMigrateConfirm3Params(virDomainPtr domain,
     return libxlDomainMigrationConfirm(driver, vm, flags, cancelled);
 }
 
+static int libxlNodeGetSecurityModel(virConnectPtr conn,
+                                     virSecurityModelPtr secmodel)
+{
+    memset(secmodel, 0, sizeof(*secmodel));
+
+    if (virNodeGetSecurityModelEnsureACL(conn) < 0)
+        return -1;
+
+    /*
+     * Currently the libxl driver does not support security model.
+     * Similar to the qemu driver, treat this as success and simply
+     * return no data in secmodel.  Avoids spamming the libvirt log
+     * with "this function is not supported by the connection driver:
+     * virNodeGetSecurityModel"
+     */
+    return 0;
+}
 
 static virHypervisorDriver libxlHypervisorDriver = {
     .name = LIBXL_DRIVER_NAME,
@@ -5122,6 +5139,7 @@ static virHypervisorDriver libxlHypervisorDriver = {
     .domainMigratePerform3Params = libxlDomainMigratePerform3Params, /* 1.2.6 */
     .domainMigrateFinish3Params = libxlDomainMigrateFinish3Params, /* 1.2.6 */
     .domainMigrateConfirm3Params = libxlDomainMigrateConfirm3Params, /* 1.2.6 */
+    .nodeGetSecurityModel = libxlNodeGetSecurityModel, /* 1.2.16 */
 };
 
 static virConnectDriver libxlConnectDriver = {
-- 
2.3.7