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gerrit.nordix.org / fdio / vpp / 42998828c9bfa419ff3d9c68fd50cd148e24d4e4 / . / src / vnet / srmpls / sr_mpls.h
blob: 5b04f76b7a76ffd70a43173bddf74708d07b2342 [file] [log] [blame]
Pablo Camarillo42998822017-07-13 09:41:32 +0200[diff] [blame^]1/*
2 * Copyright (c) 2015 Cisco and/or its affiliates. Licensed under the Apache
3 * License, Version 2.0 (the "License"); you may not use this file except in
4 * compliance with the License. You may obtain a copy of the License at:
5 *
6 * http://www.apache.org/licenses/LICENSE-2.0
7 *
8 * Unless required by applicable law or agreed to in writing, software
9 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
10 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
11 * License for the specific language governing permissions and limitations
12 * under the License.
13 */
14
15/**
16 * @file
17 * @brief Segment Routing MPLS data structures definitions
18 *
19 */
20
21#ifndef included_vnet_srmpls_h
22#define included_vnet_srmpls_h
23
24#include <vnet/vnet.h>
25#include <vnet/mpls/packet.h>
26#include <vnet/fib/mpls_fib.h>
27#include <vnet/ip/ip.h>
28#include <vnet/ip/lookup.h>
29#include <vnet/dpo/dpo.h>
30#include <vnet/dpo/replicate_dpo.h>
31
32#include <stdlib.h>
33#include <string.h>
34
35/* SR policy types */
36#define SR_POLICY_TYPE_DEFAULT 0
37#define SR_POLICY_TYPE_SPRAY 1
38
39#define SR_SEGMENT_LIST_WEIGHT_DEFAULT 1
40
41#define SR_STEER_IPV4 4
42#define SR_STEER_IPV6 6
43
44#define SR_TE_CO_BITS_00 0
45#define SR_TE_CO_BITS_01 1
46#define SR_TE_CO_BITS_10 2
47#define SR_TE_CO_BITS_11 3
48
49/**
50 * @brief SR Segment List (SID list)
51 */
52typedef struct
53{
54 /* SIDs (key) */
55 mpls_label_t *segments;
56
57 /* SID list weight (wECMP / UCMP) */
58 u32 weight;
59
60} mpls_sr_sl_t;
61
62typedef struct
63{
64 u32 *segments_lists; /**< Pool of SID lists indexes */
65
66 mpls_label_t bsid; /**< BindingSID (key) */
67
68 u8 type; /**< Type (default is 0) */
69 /* SR Policy specific DPO */
70 /* IF Type = DEFAULT Then Load Balancer DPO among SID lists */
71 /* IF Type = SPRAY then Spray DPO with all SID lists */
72
73 ip46_address_t endpoint; /**< Optional NH for SR TE */
74 u8 endpoint_type;
75 u32 color; /**< Optional color for SR TE */
76} mpls_sr_policy_t;
77
78/**
79 * @brief Steering db key
80 *
81 * L3 is IPv4/IPv6 + mask
82 */
83typedef struct
84{
85 ip46_address_t prefix; /**< IP address of the prefix */
86 u32 mask_width; /**< Mask width of the prefix */
87 u32 fib_table; /**< VRF of the prefix */
88 u8 traffic_type; /**< Traffic type (IPv4, IPv6, L2) */
89 u8 padding[3];
90} sr_mpls_steering_key_t;
91
92typedef struct
93{
94 sr_mpls_steering_key_t classify; /**< Traffic classification */
95 mpls_label_t bsid; /**< SR Policy index */
96 ip46_address_t next_hop; /**< SR TE NH */
97 char nh_type;
98 u32 *color; /**< Vector of SR TE colors */
99 char co_bits; /**< Color-Only bits */
100 mpls_label_t vpn_label;
101} mpls_sr_steering_policy_t;
102
103/**
104 * @brief Segment Routing main datastructure
105 */
106typedef struct
107{
108 /* SR SID lists */
109 mpls_sr_sl_t *sid_lists;
110
111 /* SR MPLS policies */
112 mpls_sr_policy_t *sr_policies;
113
114 /* Hash table mapping BindingSID to SR MPLS policy */
115 uword *sr_policies_index_hash;
116
117 /* Pool of SR steer policies instances */
118 mpls_sr_steering_policy_t *steer_policies;
119
120 /* MHash table mapping steering rules to SR steer instance */
121 mhash_t sr_steer_policies_hash;
122
123 /** SR TE **/
124 /* Hash table mapping (Color->Endpoint->BSID) for SR policies */
125 mhash_t sr_policies_c2e2eclabel_hash;
126 /* SR TE (internal) fib table (Endpoint, Color) */
127 u32 fib_table_EC;
128 /* Pool of (Endpoint, Color) hidden labels */
129 u32 *ec_labels;
130
131 /* convenience */
132 vlib_main_t *vlib_main;
133 vnet_main_t *vnet_main;
134} mpls_sr_main_t;
135
136extern mpls_sr_main_t sr_mpls_main;
137
138extern int
139sr_mpls_policy_add (mpls_label_t bsid, mpls_label_t * segments,
140 u8 behavior, u32 weight);
141
142extern int
143sr_mpls_policy_mod (mpls_label_t bsid, u8 operation,
144 mpls_label_t * segments, u32 sl_index, u32 weight);
145
146extern int sr_mpls_policy_del (mpls_label_t bsid);
147
148extern int
149sr_mpls_policy_assign_endpoint_color (mpls_label_t bsid,
150 ip46_address_t * endpoint,
151 u8 endpoint_type, u32 color);
152
153extern int
154sr_mpls_steering_policy_add (mpls_label_t bsid, u32 table_id,
155 ip46_address_t * prefix, u32 mask_width,
156 u8 traffic_type, ip46_address_t * next_hop,
157 u8 nh_type, u32 color, char co_bits,
158 mpls_label_t vpn_label);
159
160extern int
161sr_mpls_steering_policy_del (ip46_address_t * prefix,
162 u32 mask_width, u8 traffic_type, u32 table_id,
163 u32 color);
164
165extern u32 find_or_create_internal_label (ip46_address_t endpoint, u32 color);
166
167extern void internal_label_lock (ip46_address_t endpoint, u32 color);
168
169extern void internal_label_unlock (ip46_address_t endpoint, u32 color);
170
171#endif /* included_vnet_sr_mpls_h */
172
173/*
174 * fd.io coding-style-patch-verification: ON
175 *
176 * Local Variables: eval: (c-set-style "gnu") End:
177 */