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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.
*/
#ifndef __included_ip6_hop_by_hop_ioam_h__
#define __included_ip6_hop_by_hop_ioam_h__
#include <vnet/ip/ip6_hop_by_hop.h>
#include <vnet/ip/ip6_hop_by_hop_packet.h>
#include <vnet/ip/ip.h>
typedef struct {
/* The current rewrite we're using */
u8 * rewrite;
/* Trace data processing callback */
void *ioam_end_of_path_cb;
/* Configuration data */
/* Adjacency */
ip6_address_t adj;
#define IOAM_HBYH_ADD 0
#define IOAM_HBYH_MOD 1
#define IOAM_HBYH_POP 2
u8 ioam_flag;
/* time scale transform. Joy. */
u32 unix_time_0;
f64 vlib_time_0;
/* Trace option */
u8 has_trace_option;
/* Pot option */
u8 has_pot_option;
#define PPC_NONE 0
#define PPC_ENCAP 1
#define PPC_DECAP 2
u8 has_ppc_option;
#define TSP_SECONDS 0
#define TSP_MILLISECONDS 1
#define TSP_MICROSECONDS 2
#define TSP_NANOSECONDS 3
/* Array of function pointers to ADD and POP HBH option handling routines */
u8 options_size[256];
int (*add_options[256])(u8 *rewrite_string, u8 *rewrite_size);
int (*pop_options[256])(ip6_header_t *ip, ip6_hop_by_hop_option_t *opt);
int (*get_sizeof_options[256])(u32 *rewrite_size);
/* convenience */
vlib_main_t * vlib_main;
vnet_main_t * vnet_main;
} ip6_hop_by_hop_ioam_main_t;
extern ip6_hop_by_hop_ioam_main_t ip6_hop_by_hop_ioam_main;
extern u8 * format_path_map(u8 * s, va_list * args);
extern clib_error_t *
ip6_ioam_enable(int has_trace_option, int has_pot_option,
int has_e2e_option);
extern int ip6_ioam_set_destination (ip6_address_t *addr, u32 mask_width,
u32 vrf_id, int is_add, int is_pop, int is_none);
extern clib_error_t * clear_ioam_rewrite_fn(void);
static inline u8 is_zero_ip4_address (ip4_address_t *a)
{
return (a->as_u32 == 0);
}
static inline void copy_ip6_address (ip6_address_t *dst, ip6_address_t *src)
{
dst->as_u64[0] = src->as_u64[0];
dst->as_u64[1] = src->as_u64[1];
}
static inline void set_zero_ip6_address (ip6_address_t *a)
{
a->as_u64[0] = 0;
a->as_u64[1] = 0;
}
static inline u8 cmp_ip6_address (ip6_address_t *a1, ip6_address_t *a2)
{
return ((a1->as_u64[0] == a2->as_u64[0]) && (a1->as_u64[1] == a2->as_u64[1]));
}
static inline u8 is_zero_ip6_address (ip6_address_t *a)
{
return ((a->as_u64[0] == 0) && (a->as_u64[1] == 0));
}
int ip6_hbh_add_register_option (u8 option,
u8 size,
int rewrite_options(u8 *rewrite_string, u8 *size));
int ip6_hbh_add_unregister_option (u8 option);
int ip6_hbh_pop_register_option (u8 option,
int options(ip6_header_t *ip, ip6_hop_by_hop_option_t *opt));
int ip6_hbh_pop_unregister_option (u8 option);
int
ip6_hbh_get_sizeof_register_option (u8 option,
int get_sizeof_hdr_options(u32 *rewrite_size));
int
ip6_ioam_set_rewrite (u8 ** rwp, int has_trace_option,
int has_pot_option, int has_ppc_option);
#endif /* __included_ip6_hop_by_hop_ioam_h__ */
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