/* Hey Emacs use -*- mode: C -*- */
/*
 * Copyright (c) 2018 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

    This file defines vpp IP control-plane API messages which are generally
    called through a shared memory interface.
*/

option version = "1.0.0";

import "vnet/ip/ip_types.api";
import "vnet/interface_types.api";

/** \brief IPv6 router advertisement config request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param suppress -
    @param managed -
    @param other -
    @param ll_option -
    @param send_unicast -
    @param cease -
    @param is_no -
    @param default_router -
    @param max_interval -
    @param min_interval -
    @param lifetime -
    @param initial_count -
    @param initial_interval -
*/
autoreply define sw_interface_ip6nd_ra_config
{
  u32 client_index;
  u32 context;
  vl_api_interface_index_t sw_if_index;
  u8 suppress;
  u8 managed;
  u8 other;
  u8 ll_option;
  u8 send_unicast;
  u8 cease;
  bool is_no;
  u8 default_router;
  u32 max_interval;
  u32 min_interval;
  u32 lifetime;
  u32 initial_count;
  u32 initial_interval;
};

/** \brief IPv6 router advertisement prefix config request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - The interface the RA prefix information is for
    @param prefix - The prefix to advertise
    @param use_default - Revert to default settings
    @param no_advertise - Do not advertise this prefix
    @param off_link - The prefix is off link (it is not configured on the interface)
                      Configures the L-flag, When set, indicates that this
		      prefix can be used for on-link determination.
    @param no_autoconfig - Setting for the A-flag. When
                           set indicates that this prefix can be used for
                          stateless address configuration.
    @param no_onlink - The prefix is not on link. Make sure this is consistent
                       with the off_link parameter else YMMV
    @param is_no - add/delete
    @param val_lifetime - The length of time in
                     seconds (relative to the time the packet is sent)
                     that the prefix is valid for the purpose of on-link
                     determination.  A value of all one bits
                     (0xffffffff) represents infinity
    @param pref_lifetime - The length of time in
                     seconds (relative to the time the packet is sent)
                     that addresses generated from the prefix via
                     stateless address autoconfiguration remain
                     preferred [ADDRCONF].  A value of all one bits
                     (0xffffffff) represents infinity.
*/
autoreply define sw_interface_ip6nd_ra_prefix
{
  u32 client_index;
  u32 context;
  vl_api_interface_index_t sw_if_index;
  vl_api_prefix_t prefix;
  bool use_default;
  bool no_advertise;
  bool off_link;
  bool no_autoconfig;
  bool no_onlink;
  bool is_no;
  u32 val_lifetime;
  u32 pref_lifetime;
};

/** \brief IPv6 ND (mirror) proxy
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - The interface the host is on
    @param is_enable - enable or disable
*/
autoreply define ip6nd_proxy_enable_disable
{
  u32 client_index;
  u32 context;
  vl_api_interface_index_t sw_if_index;
  bool is_enable;
};

/** \brief IPv6 ND proxy config
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - The interface the host is on
    @param ip - The address of the host for which to proxy for
    @param is_add - Adding or deleting
*/
autoreply define ip6nd_proxy_add_del
{
  u32 client_index;
  u32 context;
  vl_api_interface_index_t sw_if_index;
  bool is_add;
  vl_api_ip6_address_t ip;
};

/** \brief IPv6 ND proxy details returned after request
    @param context - sender context, to match reply w/ request
    @param sw_if_index - The interface the host is on
    @param ip - The address of the host for which to proxy for
*/
define ip6nd_proxy_details
{
  u32 context;
  vl_api_interface_index_t sw_if_index;
  vl_api_ip6_address_t ip;
};

/** \brief IPv6 ND proxy dump request
    @param context - sender context, to match reply w/ request
*/
define ip6nd_proxy_dump
{
  u32 client_index;
  u32 context;
};

/** \brief Start / stop sending router solicitation
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param irt - initial retransmission time
    @param mrt - maximum retransmission time
    @param mrc - maximum retransmission count
    @param mrd - maximum retransmission duration
    @param sw_if_index - software interface index of interface
                         for sending router solicitation
    @param stop - if non-zero then stop sending router solicitation,
                  otherwise start sending router solicitation
*/
autoreply define ip6nd_send_router_solicitation
{
  u32 client_index;
  u32 context;
  u32 irt;
  u32 mrt;
  u32 mrc;
  u32 mrd;
  vl_api_interface_index_t sw_if_index;
  bool stop;
};

service {
  rpc want_ip6_ra_events returns want_ip6_ra_events_reply
    events ip6_ra_event;
};

/** \brief Register for ip6 router advertisement events
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param enable - 1 => register for events, 0 => cancel registration
    @param pid - sender's pid
*/
autoreply define want_ip6_ra_events
{
  u32 client_index;
  u32 context;
  bool enable;
  u32 pid;
};

/** \brief Struct representing RA prefix info
    @param prefix - RA prefix info destination address
    @param flags - RA prefix info flags
    @param valid_time - RA prefix info valid time
    @param preferred_time - RA prefix info preferred time
*/
typedef ip6_ra_prefix_info
{
  vl_api_prefix_t prefix;
  u8 flags;
  u32 valid_time;
  u32 preferred_time;
};

/** \brief Tell client about a router advertisement event
    @param client_index - opaque cookie to identify the sender
    @param pid - client pid registered to receive notification
    @param current_hop_limit - RA current hop limit
    @param flags - RA flags
    @param router_lifetime_in_sec - RA lifetime in seconds
    @param router_addr - The router's address
    @param neighbor_reachable_time_in_msec - RA neighbor reachable time in msec
    @param time_in_msec_between_retransmitted_neighbor_solicitations -
               time in msec between retransmitted neighbor solicitations
    @param n_prefixes -
    @param prefixes -
*/
define ip6_ra_event
{
  u32 client_index;
  u32 pid;
  vl_api_interface_index_t sw_if_index;
  vl_api_ip6_address_t router_addr;
  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;
  u32 n_prefixes;
  vl_api_ip6_ra_prefix_info_t prefixes[n_prefixes];
};


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