bridge: Add netlink interface to configure vlans on bridge ports

Add a netlink interface to add and remove vlan configuration on bridge port.
The interface uses the RTM_SETLINK message and encodes the vlan
configuration inside the IFLA_AF_SPEC.  It is possble to include multiple
vlans to either add or remove in a single message.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index 5db297514aec..3ca9817ca7e8 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -108,15 +108,24 @@ struct __fdb_entry {
  * [IFLA_AF_SPEC] = {
  *     [IFLA_BRIDGE_FLAGS]
  *     [IFLA_BRIDGE_MODE]
+ *     [IFLA_BRIDGE_VLAN_INFO]
  * }
  */
 enum {
         IFLA_BRIDGE_FLAGS,
         IFLA_BRIDGE_MODE,
+        IFLA_BRIDGE_VLAN_INFO,
         __IFLA_BRIDGE_MAX,
 };
 #define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
 
+#define BRIDGE_VLAN_INFO_MASTER (1<<0)  /* Operate on Bridge device as well */
+
+struct bridge_vlan_info {
+        u16 flags;
+        u16 vid;
+};
+
 /* Bridge multicast database attributes
  * [MDBA_MDB] = {
  *     [MDBA_MDB_ENTRY] = {