nsh_md2_ioam.h revision f126e1c3
1/*
2 * Copyright (c) 2017 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15#ifndef __included_nsh_md2_ioam_h__
16#define __included_nsh_md2_ioam_h__
17
18#include <nsh/nsh.h>
19#include <nsh/nsh_packet.h>
20#include <vnet/ip/ip.h>
21#include <vnet/ip/ip4_packet.h>
22#include <vnet/ip/ip6_packet.h>
23
24
25typedef struct nsh_md2_ioam_sw_interface_
26{
27  u32 sw_if_index;
28} nsh_md2_ioam_sw_interface_t;
29
30typedef struct nsh_md2_ioam_dest_tunnels_
31{
32  ip46_address_t dst_addr;
33  u32 fp_proto;
34  u32 sibling_index;
35  fib_node_index_t fib_entry_index;
36  u32 outer_fib_index;
37} nsh_md2_ioam_dest_tunnels_t;
38
39typedef struct nsh_md2_ioam_main_
40{
41  /**
42   * Linkage into the FIB object graph
43   */
44  fib_node_t node;
45
46  /* time scale transform. Joy. */
47  u32 unix_time_0;
48  f64 vlib_time_0;
49
50
51  /* Trace option */
52  u8 has_trace_option;
53
54  /* Pot option */
55  u8 has_pot_option;
56
57#define PPC_NONE  0
58#define PPC_ENCAP 1
59#define PPC_DECAP 2
60  u8 has_ppc_option;
61
62#define TSP_SECONDS              0
63#define TSP_MILLISECONDS         1
64#define TSP_MICROSECONDS         2
65#define TSP_NANOSECONDS          3
66
67
68  /* API message ID base */
69  u16 msg_id_base;
70
71  /* Override to export for iOAM */
72  uword decap_v4_next_override;
73  uword decap_v6_next_override;
74
75  /* sequence of node graph for encap */
76  uword encap_v4_next_node;
77  uword encap_v6_next_node;
78
79  /* Software interfaces. */
80  nsh_md2_ioam_sw_interface_t *sw_interfaces;
81
82  /* hash ip4/ip6 -> list of destinations for doing transit iOAM operation */
83  nsh_md2_ioam_dest_tunnels_t *dst_tunnels;
84  uword *dst_by_ip4;
85  uword *dst_by_ip6;
86
87  /** per sw_if_index, to maintain bitmap */
88  u8 *bool_ref_by_sw_if_index;
89  fib_node_type_t fib_entry_type;
90
91
92} nsh_md2_ioam_main_t;
93extern nsh_md2_ioam_main_t nsh_md2_ioam_main;
94
95/*
96 * Primary h-b-h handler trace support
97 */
98typedef struct
99{
100  u32 next_index;
101  u32 trace_len;
102  u8 option_data[256];
103} ioam_trace_t;
104
105
106clib_error_t *nsh_md2_ioam_enable_disable (int has_trace_option,
107						int has_pot_option,
108						int has_ppc_option);
109
110
111
112int nsh_md2_ioam_trace_profile_setup (void);
113
114int nsh_md2_ioam_trace_profile_cleanup (void);
115extern void nsh_md2_ioam_interface_init (void);
116
117
118
119#endif
120