/* * Copyright (c) 2016 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 __DVR_DPO_H__ #define __DVR_DPO_H__ #include <vnet/dpo/dpo.h> /** * @brief * The DVR DPO. Used as the resolving object for a DVR route. * This is used, in place of the usual L3 Adjacency, to retransmit * the packet with the original L2 header intact but also to run L3 features. * After running L3 features the packet is re-injected back into the L2 path * so it can pick up the necessary VLAN tags of the egress interface. * This re-injection is done with an output feature. */ typedef struct dvr_dpo_t_ { /** * The Software interface index that the packets will output on */ u32 dd_sw_if_index; /** * The protocol of packets using this DPO */ dpo_proto_t dd_proto; /** * number of locks. */ u16 dd_locks; } dvr_dpo_t; extern void dvr_dpo_add_or_lock (u32 sw_if_index, dpo_proto_t dproto, dpo_id_t *dpo); extern void dvr_dpo_module_init(void); /** * @brief pool of all interface DPOs */ dvr_dpo_t *dvr_dpo_pool; static inline dvr_dpo_t * dvr_dpo_get (index_t index) { return (pool_elt_at_index(dvr_dpo_pool, index)); } #endif