/* * 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. */ /** * @brief bier_fmask_db : The BIER fmask Database */ #ifndef __BIER_FMASK_DB_H__ #define __BIER_FMASK_DB_H__ #include <vnet/ip/ip.h> #include <vnet/fib/fib_types.h> /** * BIER header encapulsation types */ typedef enum bier_hdr_type_t_ { /** * BIER Header in MPLS networks */ BIER_HDR_O_MPLS, /** * BIER header in non-MPLS networks */ BIER_HDR_O_OTHER, } __attribute__((packed)) bier_hdr_type_t; /** * BIER next-hop type */ typedef enum bier_nh_type_t_ { /** * BIER Header in MPLS networks */ BIER_NH_IP, /** * BIER header in non-MPLS networks */ BIER_NH_UDP, } __attribute__((packed)) bier_nh_type_t; /** * A key/ID for a BIER forwarding Mas (FMask). * This is a simplified version of a fib_route_path_t. */ typedef struct bier_fmask_id_t_ { union { /** * next-hop of the peer */ ip46_address_t bfmi_nh; /** * ID of the next-hop object, e.g. a UDP-encap */ u32 bfmi_id; }; /** * The BIER table this fmask is in */ index_t bfmi_bti; /** * Type of BIER header this fmask supports */ bier_hdr_type_t bfmi_hdr_type; /** * Union discriminator */ bier_nh_type_t bfmi_nh_type; } __attribute__((packed)) bier_fmask_id_t; extern index_t bier_fmask_db_find_or_create_and_lock(index_t bti, const fib_route_path_t *rpath); extern index_t bier_fmask_db_find (index_t bti, const fib_route_path_t *rpath); extern void bier_fmask_db_remove (const bier_fmask_id_t *fmid); /** * Walk all the BIER fmasks */ typedef walk_rc_t (*bier_fmask_walk_fn_t) (index_t bfmi, void *ctx); extern void bier_fmask_db_walk(bier_fmask_walk_fn_t fn, void *ctx); #endif