/* * 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 #define SR_TE_CO_BITS_00 0 #define SR_TE_CO_BITS_01 1 #define SR_TE_CO_BITS_10 2 #define SR_TE_CO_BITS_11 3 /** * @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 */ ip46_address_t endpoint; /**< Optional NH for SR TE */ u8 endpoint_type; u32 color; /**< Optional color for SR TE */ } 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 */ mpls_label_t bsid; /**< SR Policy index */ ip46_address_t next_hop; /**< SR TE NH */ char nh_type; u32 *color; /**< Vector of SR TE colors */ char co_bits; /**< Color-Only bits */ mpls_label_t vpn_label; } 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; /** SR TE **/ /* Hash table mapping (Color->Endpoint->BSID) for SR policies */ mhash_t sr_policies_c2e2eclabel_hash; /* SR TE (internal) fib table (Endpoint, Color) */ u32 fib_table_EC; /* Pool of (Endpoint, Color) hidden labels */ u32 *ec_labels; /* 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, u8 operation, mpls_label_t * segments, u32 sl_index, u32 weight); extern int sr_mpls_policy_del (mpls_label_t bsid); extern int sr_mpls_policy_assign_endpoint_color (mpls_label_t bsid, ip46_address_t * endpoint, u8 endpoint_type, u32 color); extern int sr_mpls_steering_policy_add (mpls_label_t bsid, u32 table_id, ip46_address_t * prefix, u32 mask_width, u8 traffic_type, ip46_address_t * next_hop, u8 nh_type, u32 color, char co_bits, mpls_label_t vpn_label); extern int sr_mpls_steering_policy_del (ip46_address_t * prefix, u32 mask_width, u8 traffic_type, u32 table_id, u32 color); extern u32 find_or_create_internal_label (ip46_address_t endpoint, u32 color); extern void internal_label_lock (ip46_address_t endpoint, u32 color); extern void internal_label_unlock (ip46_address_t endpoint, u32 color); #endif /* included_vnet_sr_mpls_h */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: eval: (c-set-style "gnu") End: */