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/*
 * Copyright (c) 2011-2016 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.
 */
/**
 * @file
 * @brief BFD API declarations
 */
#ifndef __included_bfd_api_h__
#define __included_bfd_api_h__

#include <vnet/api_errno.h>
#include <vnet/vnet.h>
#include <vnet/ip/ip6_packet.h>

#define foreach_bfd_transport(F) \
  F (UDP4, "ip4-rewrite")        \
  F (UDP6, "ip6-rewrite")

typedef enum
{
#define F(t, n) BFD_TRANSPORT_##t,
  foreach_bfd_transport (F)
#undef F
} bfd_transport_e;

/**
 * @brief create a new bfd session
 */
vnet_api_error_t
bfd_udp_add_session (u32 sw_if_index, const ip46_address_t * local_addr,
		     const ip46_address_t * peer_addr,
		     u32 desired_min_tx_usec, u32 required_min_rx_usec,
		     u8 detect_mult, u8 is_authenticated, u32 conf_key_id,
		     u8 bfd_key_id);

/**
 * @brief modify existing session
 */
vnet_api_error_t
bfd_udp_mod_session (u32 sw_if_index, const ip46_address_t * local_addr,
		     const ip46_address_t * peer_addr,
		     u32 desired_min_tx_usec, u32 required_min_rx_usec,
		     u8 detect_mult);

/**
 * @brief delete existing session
 */
vnet_api_error_t bfd_udp_del_session (u32 sw_if_index,
				      const ip46_address_t * local_addr,
				      const ip46_address_t * peer_addr);

/**
 * @brief set session admin down/up
 */
vnet_api_error_t bfd_udp_session_set_flags (u32 sw_if_index,
					    const ip46_address_t * local_addr,
					    const ip46_address_t * peer_addr,
					    u8 admin_up_down);

/**
 * @brief create or modify bfd authentication key
 */
vnet_api_error_t bfd_auth_set_key (u32 conf_key_id, u8 auth_type, u8 key_len,
				   const u8 * key);

/**
 * @brief delete existing authentication key
 */
vnet_api_error_t bfd_auth_del_key (u32 conf_key_id);

/**
 * @brief activate authentication for existing session
 */
vnet_api_error_t bfd_udp_auth_activate (u32 sw_if_index,
					const ip46_address_t * local_addr,
					const ip46_address_t * peer_addr,
					u32 conf_key_id, u8 bfd_key_id,
					u8 is_delayed);

/**
 * @brief deactivate authentication for existing session
 */
vnet_api_error_t bfd_udp_auth_deactivate (u32 sw_if_index,
					  const ip46_address_t * local_addr,
					  const ip46_address_t * peer_addr,
					  u8 is_delayed);

/**
 * @brief set echo-source interface
 */
vnet_api_error_t bfd_udp_set_echo_source (u32 loopback_sw_if_index);

/**
 * @brief unset echo-source interface
 */
vnet_api_error_t bfd_udp_del_echo_source ();

#endif /* __included_bfd_api_h__ */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */
="n">fib); /** * @brief * Add/remove the interface from the accepting list of the special MFIB entries */ extern void ip6_mfib_interface_enable_disable(u32 sw_if_index, int is_enable); /** * @brief Get the FIB at the given index */ static inline ip6_mfib_t * ip6_mfib_get (u32 index) { return (&(pool_elt_at_index(ip6_main.mfibs, index)->v6)); } /** * @brief Get or create an IPv4 fib. * * Get or create an IPv4 fib with the provided table ID. * * @param table_id * When set to \c ~0, an arbitrary and unused fib ID is picked * and can be retrieved with \c ret->table_id. * Otherwise, the fib ID to be used to retrieve or create the desired fib. * @returns A pointer to the retrieved or created fib. * */ extern u32 ip6_mfib_table_find_or_create_and_lock(u32 table_id, mfib_source_t src); extern u32 ip6_mfib_table_create_and_lock(mfib_source_t src); static inline u32 ip6_mfib_index_from_table_id (u32 table_id) { ip6_main_t * im = &ip6_main; uword * p; p = hash_get (im->mfib_index_by_table_id, table_id); if (!p) return ~0; return p[0]; } extern u32 ip6_mfib_table_get_index_for_sw_if_index(u32 sw_if_index); /** * @brief Data-plane lookup function */ extern fib_node_index_t ip6_mfib_table_lookup2(const ip6_mfib_t *mfib, const ip6_address_t *src, const ip6_address_t *grp); /** * @brief Walk the IP6 mfib table. * * @param mfib the table to walk * @param fn The function to invoke on each entry visited * @param ctx A context passed in the visit function */ extern void ip6_mfib_table_walk (ip6_mfib_t *mfib, mfib_table_walk_fn_t fn, void *ctx); /** * @brief format (display) ipv6 MFIB mempry usage */ extern u8 *format_ip6_mfib_table_memory(u8 * s, va_list * args); #endif