[PATCH v2 4/4] interface_conf: add validation against schema in define

[Kristina Hanicova <khanicov@xxxxxxxxxx>]

We need to validate the XML against schema if option '--validate'
was passed to the virsh 'iface-define' command.

Signed-off-by: Kristina Hanicova <khanicov@xxxxxxxxxx>
---
 src/conf/interface_conf.c               | 11 ++++++++++-
 src/interface/interface_backend_netcf.c |  4 ++--
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/conf/interface_conf.c b/src/conf/interface_conf.c
index 7b0cfa6562..ddecd96c8b 100644
--- a/src/conf/interface_conf.c
+++ b/src/conf/interface_conf.c
@@ -29,6 +29,8 @@
 #include "viruuid.h"
 #include "virbuffer.h"
 #include "virstring.h"
+#include "virfile.h"
+#include "configmake.h"
 
 #define VIR_FROM_THIS VIR_FROM_INTERFACE
 
@@ -688,7 +690,14 @@ virInterfaceDefParseXML(xmlXPathContextPtr ctxt,
     VIR_XPATH_NODE_AUTORESTORE(ctxt)
     xmlNodePtr lnk;
 
-    virCheckFlags(0, NULL);
+    if (flags & VIR_INTERFACE_DEFINE_VALIDATE) {
+        g_autofree char *schema = virFileFindResource("interface.rng",
+                                                      abs_top_srcdir "/docs/schemas",
+                                                      PKGDATADIR "/schemas");
+        if (!schema ||
+            virXMLValidateAgainstSchema(schema, xml) < 0)
+            return NULL;
+    }
 
     /* check @type */
     tmp = virXPathString("string(./@type)", ctxt);
diff --git a/src/interface/interface_backend_netcf.c b/src/interface/interface_backend_netcf.c
index 9f93cdd657..78fd4f9bc7 100644
--- a/src/interface/interface_backend_netcf.c
+++ b/src/interface/interface_backend_netcf.c
@@ -894,11 +894,11 @@ static virInterfacePtr netcfInterfaceDefineXML(virConnectPtr conn,
     virInterfaceDef *ifacedef = NULL;
     virInterfacePtr ret = NULL;
 
-    virCheckFlags(0, NULL);
+    virCheckFlags(VIR_INTERFACE_DEFINE_VALIDATE, NULL);
 
     virObjectLock(driver);
 
-    ifacedef = virInterfaceDefParseString(xml, 0);
+    ifacedef = virInterfaceDefParseString(xml, flags);
     if (!ifacedef) {
         /* error was already reported */
         goto cleanup;
-- 
2.31.1