/* * 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 __LOOKUP_DPO_H__ #define __LOOKUP_DPO_H__ #include <vnet/vnet.h> #include <vnet/fib/fib_types.h> #include <vnet/dpo/dpo.h> /** * Switch to use the packet's source or destination address for lookup */ typedef enum lookup_input_t_ { LOOKUP_INPUT_SRC_ADDR, LOOKUP_INPUT_DST_ADDR, } __attribute__ ((packed)) lookup_input_t; #define LOOKUP_INPUTS { \ [LOOKUP_INPUT_SRC_ADDR] = "src-address", \ [LOOKUP_INPUT_DST_ADDR] = "dst-address", \ } /** * Switch to use the packet's source or destination address for lookup */ typedef enum lookup_table_t_ { LOOKUP_TABLE_FROM_INPUT_INTERFACE, LOOKUP_TABLE_FROM_CONFIG, } __attribute__ ((packed)) lookup_table_t; #define LOOKUP_TABLES { \ [LOOKUP_TABLE_FROM_INPUT_INTERFACE] = "table-input-interface", \ [LOOKUP_TABLE_FROM_CONFIG] = "table-configured", \ } /** * Switch to use the packet's source or destination address for lookup */ typedef enum lookup_cast_t_ { LOOKUP_UNICAST, LOOKUP_MULTICAST, } __attribute__ ((packed)) lookup_cast_t; #define LOOKUP_CASTS { \ [LOOKUP_UNICAST] = "unicast", \ [LOOKUP_MULTICAST] = "multicast", \ } /** * A representation of an MPLS label for imposition in the data-path */ typedef struct lookup_dpo_t { /** * required for pool_get_aligned. * memebers used in the switch path come first! */ CLIB_CACHE_LINE_ALIGN_MARK(cacheline0); /** * The FIB, or interface from which to get a FIB, in which to perform * the next lookup; */ fib_node_index_t lkd_fib_index; /** * The protocol of the FIB for the lookup, and hence * the protocol of the packet */ dpo_proto_t lkd_proto; /** * Switch to use src or dst address */ lookup_input_t lkd_input; /** * Switch to use the table index passed, or the table of the input interface */ lookup_table_t lkd_table; /** * Unicast of rmulticast FIB lookup */ lookup_cast_t lkd_cast; /** * Number of locks */ u16 lkd_locks; } lookup_dpo_t; extern void lookup_dpo_add_or_lock_w_fib_index(fib_node_index_t fib_index, dpo_proto_t proto, lookup_cast_t cast, lookup_input_t input, lookup_table_t table, dpo_id_t *dpo); extern void lookup_dpo_add_or_lock_w_table_id(u32 table_id, dpo_proto_t proto, lookup_cast_t cast, lookup_input_t input, lookup_table_t table, dpo_id_t *dpo); extern u8* format_lookup_dpo(u8 *s, va_list *args); /* * Encapsulation violation for fast data-path access */ extern lookup_dpo_t *lookup_dpo_pool; static inline lookup_dpo_t * lookup_dpo_get (index_t index) { return (pool_elt_at_index(lookup_dpo_pool, index)); } extern void lookup_dpo_module_init(void); #endif