vpp - Vector Packet Processing

Age	Commit message (Expand)	Author	Files	Lines
2015-12-08	Initial commit of vpp code.v1.0.0	Ed Warnicke	1	-0/+50

/* * 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 * Neighbour Adjacency sub-type. These adjs represent an L3 peer on a * connected link. */ #ifndef __ADJ_NBR_H__ #define __ADJ_NBR_H__ #include <vnet/vnet.h> #include <vnet/adj/adj_types.h> #include <vnet/fib/fib_node.h> #include <vnet/dpo/dpo.h> /** * @brief * Add (and lock) a new or lock an existing neighbour adjacency * * @param nh_proto * The protocol for the next-hop address (v4 or v6) * * @param link_type * A description of the protocol of the packets that will forward * through this adj. On an ethernet interface this is the MAC header's * ether-type * * @param nh_addr * The address of the next-hop/peer to send the packet to * * @param sw_if_index * The interface on which the peer resides */ extern adj_index_t adj_nbr_add_or_lock(fib_protocol_t nh_proto, vnet_link_t link_type, const ip46_address_t *nh_addr, u32 sw_if_index); /** * @brief * Add (and lock) a new or lock an existing neighbour adjacency * * @param nh_proto * The protocol for the next-hop address (v4 or v6) * * @param link_type * A description of the protocol of the packets that will forward * through this adj. On an ethernet interface this is the MAC header's * ether-type * * @param nh_addr * The address of the next-hop/peer to send the packet to * * @param sw_if_index * The interface on which the peer resides * * @param rewrite * The rewrite to prepend to packets */ extern adj_index_t adj_nbr_add_or_lock_w_rewrite(fib_protocol_t nh_proto, vnet_link_t link_type, const ip46_address_t *nh_addr, u32 sw_if_index, u8 *rewrite); /** * @brief When adding a rewrite to an adjacency these are flags that * apply to that rewrite */ typedef enum adj_nbr_rewrite_flag_t_ { ADJ_NBR_REWRITE_FLAG_NONE, /** * An indication that the rewrite is incomplete, i.e. that it describes the * ARP/ND rewrite when probing. */ ADJ_NBR_REWRITE_FLAG_INCOMPLETE = ADJ_NBR_REWRITE_FLAG_NONE, /** * An indication that the rewrite is complete, i.e. that it fully describes * the link-layer addressing for the destintation. * The opposite of this is an incomplete rewrite that describes the ARP/ND * rewrite when probing. */ ADJ_NBR_REWRITE_FLAG_COMPLETE = (1 << 0), } adj_nbr_rewrite_flag_t; /** * @brief * Update the rewrite string for an existing adjacecny. * * @param * The index of the adj to update * * @param * The new rewrite */ extern void adj_nbr_update_rewrite(adj_index_t adj_index, adj_nbr_rewrite_flag_t flags, u8 *rewrite); /** * @brief * Format aa incomplete neigbour (ARP) adjacency */ extern u8* format_adj_nbr_incomplete(u8* s, va_list *ap); /** * @brief * Format a neigbour (REWRITE) adjacency */ extern u8* format_adj_nbr(u8* s, va_list *ap); /** * @brief Walk the neighbour Adjacencies on a given interface */ extern void adj_nbr_walk (u32 sw_if_index, fib_protocol_t adj_nh_proto, adj_walk_cb_t cb, void *ctx); /** * @brief Walk the neighbour Adjacencies on a given interface with a given next-hop */ void adj_nbr_walk_nh (u32 sw_if_index, fib_protocol_t adj_nh_proto, const ip46_address_t *nh, adj_walk_cb_t cb, void *ctx); /** * @brief Walk adjacencies on a link with a given v4 next-hop. * that is visit the adjacencies with different link types. */ void adj_nbr_walk_nh4 (u32 sw_if_index, const ip4_address_t *addr, adj_walk_cb_t cb, void *ctx); /** * @brief Walk adjacencies on a link with a given v6 next-hop. * that is visit the adjacencies with different link types. */ void adj_nbr_walk_nh6 (u32 sw_if_index, const ip6_address_t *addr, adj_walk_cb_t cb, void *ctx); /** * @brief Lookup neighbor adjancency. */ adj_index_t adj_nbr_find (fib_protocol_t nh_proto, vnet_link_t link_type, const ip46_address_t *nh_addr, u32 sw_if_index); /** * @brief * Module initialisation */ extern void adj_nbr_module_init(void); /** * @brief * Return the size of the adjacency database. for testing purposes */ extern u32 adj_nbr_db_size(void); #endif