2 * l2_bd.h : layer 2 bridge domain
4 * Copyright (c) 2013 Cisco and/or its affiliates.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 #ifndef included_l2bd_h
19 #define included_l2bd_h
21 #include <vlib/vlib.h>
22 #include <vnet/vnet.h>
25 // hash bd_id -> bd_index
26 uword * bd_index_by_bd_id;
28 // Busy bd_index bitmap
29 uword * bd_index_bitmap;
32 vlib_main_t * vlib_main;
33 vnet_main_t * vnet_main;
38 // Bridge domain member
40 #define L2_FLOOD_MEMBER_NORMAL 0
41 #define L2_FLOOD_MEMBER_BVI 1
44 u32 sw_if_index; // the output L2 interface
45 u8 flags; // 0=normal, 1=bvi
46 u8 shg; // split horizon group number
51 // Per-bridge domain configuration
55 // Contains bit enables for flooding, learning, and forwarding.
56 // All other feature bits should always be set.
58 // identity of the bridge-domain's BVI interface
59 // set to ~0 if there is no BVI
62 // bridge domain id, not to be confused with bd_index
65 // Vector of members in the replication group
66 l2_flood_member_t * members;
68 // hash ip4/ip6 -> mac for arp termination
74 // Return 1 if bridge domain has been initialized
76 bd_is_valid (l2_bridge_domain_t * bd_config)
78 return (bd_config->feature_bitmap != 0);
81 // Init bridge domain if not done already
83 bd_validate (l2_bridge_domain_t * bd_config);
87 bd_add_member (l2_bridge_domain_t * bd_config,
88 l2_flood_member_t * member);
91 bd_remove_member (l2_bridge_domain_t * bd_config,
95 #define L2_LEARN (1<<0)
97 #define L2_FLOOD (1<<2)
98 #define L2_UU_FLOOD (1<<3)
99 #define L2_ARP_TERM (1<<4)
102 bd_set_flags (vlib_main_t * vm,
108 * \brief Get or create a bridge domain.
110 * Get or create a bridge domain with the given bridge domain ID.
112 * \param bdm bd_main pointer.
113 * \param bd_id The bridge domain ID or ~0 if an arbitrary unused bridge domain should be used.
114 * \return The bridge domain index in \c l2input_main->l2_bridge_domain_t vector.
116 u32 bd_find_or_add_bd_index (bd_main_t * bdm, u32 bd_id);
119 * \brief Delete a bridge domain.
121 * Delete an existing bridge domain with the given bridge domain ID.
123 * \param bdm bd_main pointer.
124 * \param bd_id The bridge domain ID.
125 * \return 0 on success and -1 if the bridge domain does not exist.
127 int bd_delete_bd_index (bd_main_t * bdm, u32 bd_id);
129 u32 bd_add_del_ip_mac(u32 bd_index,