1 files changed, 120 insertions, 0 deletions
diff --git a/vnet/vnet/l2/l2_bd.h b/vnet/vnet/l2/l2_bd.h
new file mode 100644
index 00000000000..9d29a83b22f
--- /dev/null
+++ b/vnet/vnet/l2/l2_bd.h
@@ -0,0 +1,120 @@
+/*
+ * l2_bd.h : layer 2 bridge domain
+ *
+ * Copyright (c) 2013 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef included_l2bd_h
+#define included_l2bd_h
+
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+
+typedef struct {
+  // hash bd_id -> bd_index
+  uword * bd_index_by_bd_id;
+
+  // Busy bd_index bitmap
+  uword * bd_index_bitmap;
+
+  // convenience
+  vlib_main_t * vlib_main;
+  vnet_main_t * vnet_main;
+} bd_main_t;
+
+bd_main_t bd_main;
+
+// Bridge domain member 
+
+#define L2_FLOOD_MEMBER_NORMAL 0
+#define L2_FLOOD_MEMBER_BVI    1
+
+typedef struct {
+  u32  sw_if_index;  // the output L2 interface
+  u8   flags;        // 0=normal, 1=bvi
+  u8   shg;          // split horizon group number 
+  u16  spare;
+} l2_flood_member_t;
+
+
+// Per-bridge domain configuration
+
+typedef struct {
+  u32 feature_bitmap; 
+  // Contains bit enables for flooding, learning, and forwarding.
+  // All other feature bits should always be set.
+
+  // identity of the bridge-domain's BVI interface
+  // set to ~0 if there is no BVI
+  u32 bvi_sw_if_index;
+
+  // output node index for bvi interface before it was changed to l2-input
+  u32 saved_bvi_output_node_index;
+
+  // bridge domain id, not to be confused with bd_index
+  u32 bd_id;
+
+  // Vector of members in the replication group
+  l2_flood_member_t * members;
+
+  // hash ip4/ip6 -> mac for arp termination
+  uword *mac_by_ip4;
+  uword *mac_by_ip6;
+
+} l2_bridge_domain_t;
+
+// Return 1 if bridge domain has been initialized
+always_inline u32
+bd_is_valid (l2_bridge_domain_t * bd_config) 
+{
+  return (bd_config->feature_bitmap != 0);
+}
+
+// Init bridge domain if not done already
+inline void
+bd_validate (l2_bridge_domain_t * bd_config);
+
+
+void
+bd_add_member (l2_bridge_domain_t * bd_config,
+               l2_flood_member_t * member);
+
+u32
+bd_remove_member (l2_bridge_domain_t * bd_config,
+                  u32 sw_if_index);
+
+
+#define L2_LEARN   (1<<0)
+#define L2_FWD     (1<<1)
+#define L2_FLOOD   (1<<2)
+#define L2_UU_FLOOD (1<<3)
+#define L2_ARP_TERM (1<<4)
+
+u32 
+bd_set_flags (vlib_main_t * vm,
+              u32 bd_index,
+              u32 flags,
+              u32 enable);
+
+u32 bd_find_or_add_bd_index (bd_main_t * bdm, u32 bd_id);
+int bd_delete_bd_index (bd_main_t * bdm, u32 bd_id);
+
+u32 bd_add_del_ip_mac(u32 bd_index,
+		      u8 *ip_addr,
+		      u8 *mac_addr,
+		      u8 is_ip6,
+		      u8 is_add);
+
+#endif
+