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/*
* Copyright (c) 2015 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.
*/
/**
* @file
* @brief Segment Routing MPLS data structures definitions
*
*/
#ifndef included_vnet_srmpls_h
#define included_vnet_srmpls_h
#include <vnet/vnet.h>
#include <vnet/mpls/packet.h>
#include <vnet/fib/mpls_fib.h>
#include <vnet/ip/ip.h>
#include <vnet/ip/lookup.h>
#include <vnet/dpo/dpo.h>
#include <vnet/dpo/replicate_dpo.h>
#include <stdlib.h>
#include <string.h>
/* SR policy types */
#define SR_POLICY_TYPE_DEFAULT 0
#define SR_POLICY_TYPE_SPRAY 1
#define SR_SEGMENT_LIST_WEIGHT_DEFAULT 1
#define SR_STEER_IPV4 4
#define SR_STEER_IPV6 6
/**
* @brief SR Segment List (SID list)
*/
typedef struct
{
/**
* SIDs (key)
*/
mpls_label_t *segments;
/**
* SID list weight (wECMP / UCMP)
*/
u32 weight;
} mpls_sr_sl_t;
typedef struct
{
u32 *segments_lists; /**< Pool of SID lists indexes */
mpls_label_t bsid; /**< BindingSID (key) */
u8 type; /**< Type (default is 0) */
/* SR Policy specific DPO */
/* IF Type = DEFAULT Then Load Balancer DPO among SID lists */
/* IF Type = SPRAY then Spray DPO with all SID lists */
} mpls_sr_policy_t;
/**
* @brief Steering db key
*
* L3 is IPv4/IPv6 + mask
*/
typedef struct
{
ip46_address_t prefix; /**< IP address of the prefix */
u32 mask_width; /**< Mask width of the prefix */
u32 fib_table; /**< VRF of the prefix */
u8 traffic_type; /**< Traffic type (IPv4, IPv6, L2) */
u8 padding[3];
} sr_mpls_steering_key_t;
typedef struct
{
sr_mpls_steering_key_t classify; /**< Traffic classification */
u32 sr_policy; /**< SR Policy index */
} mpls_sr_steering_policy_t;
/**
* @brief Segment Routing main datastructure
*/
typedef struct
{
/**
* SR SID lists
*/
mpls_sr_sl_t *sid_lists;
/**
* SR MPLS policies
*/
mpls_sr_policy_t *sr_policies;
/**
* Hash table mapping BindingSID to SR MPLS policy
*/
uword *sr_policies_index_hash;
/**
* Pool of SR steer policies instances
*/
mpls_sr_steering_policy_t *steer_policies;
/**
* MHash table mapping steering rules to SR steer instance
*/
mhash_t sr_steer_policies_hash;
/**
* convenience
*/
vlib_main_t *vlib_main;
vnet_main_t *vnet_main;
} mpls_sr_main_t;
extern mpls_sr_main_t sr_mpls_main;
extern int
sr_mpls_policy_add (mpls_label_t bsid, mpls_label_t * segments,
u8 behavior, u32 weight);
extern int
sr_mpls_policy_mod (mpls_label_t bsid, u32 index, u8 operation,
mpls_label_t * segments, u32 sl_index, u32 weight);
extern int sr_mpls_policy_del (mpls_label_t bsid, u32 index);
#endif /* included_vnet_sr_mpls_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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