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authorMauro Sardara <msardara@cisco.com>2020-03-24 17:34:14 +0000
committerMauro Sardara <msardara@cisco.com>2020-09-14 17:31:15 +0000
commit88509fe353767cbde707c3e3b1f29392957819f3 (patch)
treecccd51bac7966cd3138c525e8075d90341184a66 /hicn-plugin/src/route.h
parentd875ae92a7fa1eaab3bc2616aeeedfc64a81fea4 (diff)
[HICN-574] Host stack plugin for VPP.
Signed-off-by: Mauro Sardara <msardara@cisco.com> Change-Id: I8d8fdffef31a7013265d6529c5f52f3d5ec70d18 Signed-off-by: Mauro Sardara <msardara@cisco.com> Signed-off-by: Mauro <you@example.com> Signed-off-by: Mauro Sardara <msardara@cisco.com>
Diffstat (limited to 'hicn-plugin/src/route.h')
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diff --git a/hicn-plugin/src/route.h b/hicn-plugin/src/route.h
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--- a/hicn-plugin/src/route.h
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-/*
- * Copyright (c) 2017-2020 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 __HICN_ROUTE__
-#define __HICN_ROUTE__
-
-#include <vlib/vlib.h>
-#include <vppinfra/error.h>
-#include "hicn.h"
-#include "faces/face.h"
-
-/**
- * @file route.h
- *
- * hICN uses a specific vrf to install the routes for a prefix has been enabled to
- * be hicn. It considers the vrf 0 (the default vrf) as the dominating vrf on
- * which every route is stored. Enabling a prefix to be hICN will copy all the routes
- * in the vrf 0 for the given prefi, in the vrf HICN. Every modification made on the
- * vrf 0 on an hICN enabled prefix is reflected in the vrf hICN (through the use of
- * the fib entry tracking functionality). Moreover, we use the lookup in the vrf hICN
- * as a way for punting packet that must be processed as hICN. The implementation will
- * install a special dpo as a single next hop for the vpp load balancer for each entry
- * in the vrf hICN that we enabled. Such dpo will have two purposes: 1) to punt packets
- * to the hICN forwarding pipeline, 2) to point to the righe strategy (the dpoi_index will
- * be an index to the strategy context while the dpoi_type will be an index to the strategy vft).
- *
- * Additionally, hICN assign each interface to the vrf hICN; this is required for
- * the interest lookup. Vpp performs a lookup in the vrf assigned to the interface,
- * therefore if an interface is not assigned to the hICN vrf, the lookup will be done
- * on the vrf 0 and the packet won't be processed through the hicn forwarding pipeline.
- */
-
-/*
- * Adding each interface to the vrf hICN has the side effect that to ping you need to
- * specify the vrf hICN in the command.
- */
-
-extern fib_source_t hicn_fib_src;
-
-extern dpo_type_t udp_encap_dpo_types[FIB_PROTOCOL_MAX];
-
-/**
- * @Brief Return the hicn_dpo corresponding to the prefix in teh vrf HICN
- *
- * @param prefix Prefix for which we want to retrieve the hICN dpo
- * @param hicn_dpo return value with the hicn_dpo
- * @param fib_index return value with the fib index corresponding to the prefix
- */
-int
-hicn_route_get_dpo (const fib_prefix_t * prefix,
- const dpo_id_t ** hicn_dpo, u32 * fib_index);
-
-
-/**
- * @Brief Set the strategy for a given prefix
- *
- * @param prefix Prefix for which we set the strategy
- * @param stretegy_id Index of the strategy to set
- */
-int
-hicn_route_set_strategy (fib_prefix_t * prefix, u32 strategy_id);
-
-/**
- * @Brief Helper to add a nex hop in the vrf 0. If there are no entries in the
- * vrf 0 that matches with the prefix (epm), a new one is created.
- *
- * @param fib_proto FIB_PROTOCOL_IP6 or FIB_PROTOCOL_IP4 (mpls not supported)
- * @param pfx Prefix for which to add a next hop
- * @param nh Next hop to add
- * @param sw_if Software interface index to add in the next hop
- */
-int
-ip_nh_add_helper (fib_protocol_t fib_proto, const fib_prefix_t * pfx, ip46_address_t * nh, u32 sw_if);
-
-/**
- * @Brief Helper to remove a nex hop in the vrf 0. If there are no entries in the
- * vrf 0 nothing happens.
- *
- * @param fib_proto FIB_PROTOCOL_IP6 or FIB_PROTOCOL_IP4 (mpls not supported)
- * @param pfx Prefix for which to remove a next hop
- * @param nh Next hop to remove
- * @param sw_if Software interface index in the next hop definition
- */
-int
-ip_nh_del_helper (fib_protocol_t fib_proto, const fib_prefix_t * rpfx, ip46_address_t * nh, u32 sw_if);
-
-/**
- * @Brief Enable an hICN for an ip prefix
- *
- * @param prefix Prefix for which we enable hICN
- * @return HICN_ERROR_NONE if hICN was enabled on the prefix
- * HICN_ERROR_ROUTE_NO_LD if the first dpo for the fib entry corresponding to the prefix is not a load_balancer
- * HICN_ERROR_ROUTE_DPO_NO_HICN if the loadbalancer in the vrf HICN already contains a dpo which is not an hICN one
- * HICN_ERROR_ROUTE_MLT_LD if there are more than a dpo in the vpp loadbalancer
- */
-int
-hicn_route_enable (fib_prefix_t *prefix);
-
-/**
- * @Brief Disable an hICN for an ip prefix. If hICN wasn't enable on the prefix
- * nothing happens and it returns HICN_ERROR_ROUTE_NOT_FOUND
- *
- * @param prefix Prefix for which we disable hICN
- */
-int
-hicn_route_disable (fib_prefix_t *prefix);
-
-
-/* Init route internal strustures */
-void
-hicn_route_init();
-#endif /* //__HICN_ROUTE__ */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables: eval: (c-set-style "gnu") End:
- */