land b_groups onto HEAD:

[fs/lustre-release.git] / lustre / mgmt / mgmt_svc.c

diff --git a/lustre/mgmt/mgmt_svc.c b/lustre/mgmt/mgmt_svc.c
index 0dff689..6d39b2b 100644 (file)
--- a/lustre/mgmt/mgmt_svc.c
+++ b/lustre/mgmt/mgmt_svc.c
@@ -49,11 +49,28 @@ static int mgmt_ping(struct ptlrpc_request *req)
         return lustre_pack_msg(0, NULL, NULL, &req->rq_replen, &req->rq_repmsg);
 }
 
+static int mgmt_msg_check_version(struct lustre_msg *msg)
+{
+        if (lustre_msg_check_version(msg, LUSTRE_OBD_VERSION)) {
+                CERROR("bad opc %u version %08x, expecting %08x\n",
+                       msg->opc, msg->version, LUSTRE_OBD_VERSION);
+                return -EINVAL;
+        }
+
+        return 0;
+}
+
 static int mgmt_handler(struct ptlrpc_request *req)
 {
         int rc;
         ENTRY;
 
+        rc = mgmt_msg_check_version(req->rq_reqmsg);
+        if (rc) {
+                CERROR("MGMT drop mal-formed request\n");
+                RETURN(rc);
+        }
+
         switch (req->rq_reqmsg->opc) {
         case OBD_PING:
                 DEBUG_REQ(D_RPCTRACE, req, "ping");