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Diffstat (limited to 'src/plugins/srmpls/sr_mpls.h')
| -rw-r--r-- | src/plugins/srmpls/sr_mpls.h | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/src/plugins/srmpls/sr_mpls.h b/src/plugins/srmpls/sr_mpls.h new file mode 100644 index 00000000000..a8f9494428f --- /dev/null +++ b/src/plugins/srmpls/sr_mpls.h @@ -0,0 +1,177 @@ +/* + * 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: + */ |