From 20a773677230374ffa2d5d140f7d46032fb7bc9d Mon Sep 17 00:00:00 2001 From: Mauro Sardara Date: Fri, 18 Sep 2020 17:39:03 +0200 Subject: Revert to [HICN-638] Check if systemd is running before enabling hicn-light service Signed-off-by: Mauro Sardara Change-Id: I1810d96e001a4e6e097e1efa331b682af750925d --- hicn-plugin/src/route.h | 130 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 130 insertions(+) create mode 100644 hicn-plugin/src/route.h (limited to 'hicn-plugin/src/route.h') diff --git a/hicn-plugin/src/route.h b/hicn-plugin/src/route.h new file mode 100644 index 000000000..a1ba86b3d --- /dev/null +++ b/hicn-plugin/src/route.h @@ -0,0 +1,130 @@ +/* + * 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 +#include +#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: + */ -- cgit 1.2.3-korg