net: Add a hub net client

The vlan feature can be implemented in terms of hubs.  By introducing a
hub net client it becomes possible to remove the special case vlan code
from net.c and push the vlan feature out of generic networking code.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/net/hub.h b/net/hub.h
new file mode 100644
index 0000000000..f0d98f2bf6
--- /dev/null
+++ b/net/hub.h
@@ -0,0 +1,26 @@
+/*
+ * Hub net client
+ *
+ * Copyright IBM, Corp. 2012
+ *
+ * Authors:
+ *  Stefan Hajnoczi   <stefanha@linux.vnet.ibm.com>
+ *  Zhi Yong Wu       <wuzhy@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+
+#ifndef NET_HUB_H
+#define NET_HUB_H
+
+#include "qemu-common.h"
+
+int net_init_hubport(const NetClientOptions *opts, const char *name,
+                     VLANState *vlan);
+VLANClientState *net_hub_add_port(int hub_id, const char *name);
+void net_hub_info(Monitor *mon);
+int net_hub_id_for_client(VLANClientState *nc, int *id);
+
+#endif /* NET_HUB_H */