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/*
*
* ip6_neighboor.h: ip6 neighbor structures
*
* Copyright (c) 2016 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 __IP6_RA_H__
#define __IP6_RA_H__
#include <vnet/fib/fib_types.h>
/* advertised prefix option */
typedef struct
{
/* basic advertised information */
ip6_address_t prefix;
u8 prefix_len;
int adv_on_link_flag;
int adv_autonomous_flag;
u32 adv_valid_lifetime_in_secs;
u32 adv_pref_lifetime_in_secs;
/* advertised values are computed from these times if decrementing */
f64 valid_lifetime_expires;
f64 pref_lifetime_expires;
/* local information */
int enabled;
int deprecated_prefix_flag;
int decrement_lifetime_flag;
#define MIN_ADV_VALID_LIFETIME 7203 /* seconds */
#define DEF_ADV_VALID_LIFETIME 2592000
#define DEF_ADV_PREF_LIFETIME 604800
/* extensions are added here, mobile, DNS etc.. */
} ip6_radv_prefix_t;
typedef struct
{
u32 irt;
u32 mrt;
u32 mrc;
u32 mrd;
} icmp6_send_router_solicitation_params_t;
typedef struct ip6_ra_t_
{
/* advertised config information, zero means unspecified */
u8 curr_hop_limit;
int adv_managed_flag;
int adv_other_flag;
u16 adv_router_lifetime_in_sec;
u32 adv_neighbor_reachable_time_in_msec;
u32 adv_time_in_msec_between_retransmitted_neighbor_solicitations;
/* mtu option */
u32 adv_link_mtu;
/* local information */
u32 sw_if_index;
int send_radv; /* radv on/off on this interface - set by config */
int cease_radv; /* we are ceasing to send - set byf config */
int send_unicast;
int adv_link_layer_address;
int prefix_option;
int failed_device_check;
int ref_count;
/* prefix option */
ip6_radv_prefix_t *adv_prefixes_pool;
/* Hash table mapping address to index in interface advertised prefix pool.
*/
mhash_t address_to_prefix_index;
f64 max_radv_interval;
f64 min_radv_interval;
f64 min_delay_between_radv;
f64 max_delay_between_radv;
f64 max_rtr_default_lifetime;
f64 last_radv_time;
f64 last_multicast_time;
f64 next_multicast_time;
u32 initial_adverts_count;
f64 initial_adverts_interval;
u32 initial_adverts_sent;
/* stats */
u32 n_advertisements_sent;
u32 n_solicitations_rcvd;
u32 n_solicitations_dropped;
/* router solicitations sending state */
u8 keep_sending_rs; /* when true then next fields are valid */
icmp6_send_router_solicitation_params_t params;
f64 sleep_interval;
f64 due_time;
u32 n_left;
f64 start_time;
vlib_buffer_t *buffer;
u32 seed;
} ip6_ra_t;
extern ip6_ra_t *ip6_ra_get_itf (u32 sw_if_index);
extern int ip6_ra_config (vlib_main_t * vm, u32 sw_if_index,
u8 suppress, u8 managed, u8 other,
u8 ll_option, u8 send_unicast, u8 cease,
u8 use_lifetime, u32 lifetime,
u32 initial_count, u32 initial_interval,
u32 max_interval, u32 min_interval, u8 is_no);
extern int ip6_ra_prefix (vlib_main_t * vm, u32 sw_if_index,
ip6_address_t * prefix_addr, u8 prefix_len,
u8 use_default, u32 val_lifetime,
u32 pref_lifetime, u8 no_advertise,
u8 off_link, u8 no_autoconfig,
u8 no_onlink, u8 is_no);
typedef walk_rc_t (*ip6_ra_itf_walk_fn_t) (u32 sw_if_index, void *ctx);
extern void ip6_ra_itf_walk (ip6_ra_itf_walk_fn_t fn, void *ctx);
extern void icmp6_send_router_solicitation (vlib_main_t * vm,
u32 sw_if_index,
u8 stop,
const
icmp6_send_router_solicitation_params_t
* params);
typedef struct
{
fib_prefix_t prefix;
u8 flags;
u32 valid_time;
u32 preferred_time;
} ra_report_prefix_info_t;
typedef struct
{
ip6_address_t router_address;
u32 sw_if_index;
u8 current_hop_limit;
u8 flags;
u16 router_lifetime_in_sec;
u32 neighbor_reachable_time_in_msec;
u32 time_in_msec_between_retransmitted_neighbor_solicitations;
u8 slla[6];
u32 mtu;
ra_report_prefix_info_t *prefixes;
} ip6_ra_report_t;
typedef void (*ip6_ra_report_notify_t) (const ip6_ra_report_t * rap);
extern void ip6_ra_report_register (ip6_ra_report_notify_t fn);
extern void ip6_ra_report_unregister (ip6_ra_report_notify_t fn);
extern void ip6_ra_update_secondary_radv_info (ip6_address_t * address,
u8 prefix_len,
u32 primary_sw_if_index,
u32 valid_time,
u32 preferred_time);
extern u8 ip6_ra_adv_enabled (u32 sw_if_index);
#endif /* included_ip6_neighbor_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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