openflow: Add enum ofp_version

Use an enum for ofp_version in ofp-util and ofp-msg.
This in conjunction with the use of switch() statements
allows the compiler to warn when a new ofp_version isn't handled.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/lib/vconn-provider.h b/lib/vconn-provider.h
index 29408524..54ec2e6b 100644
--- a/lib/vconn-provider.h
+++ b/lib/vconn-provider.h
@@ -22,6 +22,7 @@
 
 #include <assert.h>
 #include "vconn.h"
+#include "openflow/openflow-common.h"
 
 /* Active virtual connection to an OpenFlow device. */
 
@@ -32,8 +33,8 @@ struct vconn {
     struct vconn_class *class;
     int state;
     int error;
-    int min_version;
-    int version;
+    enum ofp_version min_version;
+    enum ofp_version version;
     ovs_be32 remote_ip;
     ovs_be16 remote_port;
     ovs_be32 local_ip;