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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 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
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);
/**
* \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
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