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+/*
+ * 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;
+
+ /* bridge domain id, not to be confused with bd_index */
+ u32 bd_id;
+
+ /* Vector of member ports */
+ l2_flood_member_t *members;
+
+ /* First flood_count member ports are flooded */
+ u32 flood_count;
+
+ /* Tunnel Master (Multicast vxlan) are always flooded */
+ u32 tun_master_count;
+
+ /* Tunnels (Unicast vxlan) are flooded if there are no masters */
+ u32 tun_normal_count;
+
+ /* hash ip4/ip6 -> mac for arp/nd termination */
+ uword *mac_by_ip4;
+ uword *mac_by_ip6;
+
+ /* mac aging */
+ u8 mac_age;
+
+} 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 */
+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);
+void bd_set_mac_age (vlib_main_t * vm, u32 bd_index, u8 age);
+
+/**
+ * \brief Get or create a bridge domain.
+ *
+ * Get or create a bridge domain with the given bridge domain ID.
+ *
+ * \param bdm bd_main pointer.
+ * \param bd_id The bridge domain ID or ~0 if an arbitrary unused bridge domain should be used.
+ * \return The bridge domain index in \c l2input_main->l2_bridge_domain_t vector.
+ */
+u32 bd_find_or_add_bd_index (bd_main_t * bdm, u32 bd_id);
+
+/**
+ * \brief Delete a bridge domain.
+ *
+ * Delete an existing bridge domain with the given bridge domain ID.
+ *
+ * \param bdm bd_main pointer.
+ * \param bd_id The bridge domain ID.
+ * \return 0 on success and -1 if the bridge domain does not exist.
+ */
+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
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */