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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_srv6_ad_flow_h__
#define __included_srv6_ad_flow_h__
#include <vnet/vnet.h>
#include <vnet/ip/ip.h>
#include <vnet/srv6/sr.h>
#include <vnet/srv6/sr_packet.h>
#include <vppinfra/error.h>
#include <vppinfra/elog.h>
#include <vppinfra/dlist.h>
#include <vppinfra/bihash_40_8.h>
#define AD_TYPE_IP4 IP_PROTOCOL_IP_IN_IP
#define AD_TYPE_IP6 IP_PROTOCOL_IPV6
#define SRV6_AD_FLOW_DEFAULT_CACHE_SIZE 100
#define SRV6_AD_CACHE_TIMEOUT 300
/*
* Cache entries
*/
typedef struct
{
/* Cache key (5-tuple) */
struct
{
ip46_address_t s_addr;
ip46_address_t d_addr;
u8 proto;
u16 s_port;
u16 d_port;
} key;
/* Cached encapsulation headers */
u32 rw_len;
u8 *rw_data;
/* Index in global LRU list */
u32 lru_index;
/* Last update timestamp */
f64 last_lru_update;
/* Last heard timestamp */
f64 last_heard;
} srv6_ad_flow_entry_t;
/*
* This is the memory that will be stored per each localsid
* the user instantiates
*/
typedef struct
{
ip46_address_t nh_addr; /**< Proxied device address */
u32 sw_if_index_out; /**< Outgoing iface to proxied dev. */
u32 nh_adj; /**< Adjacency index for out. iface */
u8 inner_type;
u32 sw_if_index_in; /**< Incoming iface from proxied dev. */
u32 cache_size;
u32 cache_buckets;
uword cache_memory_size;
clib_bihash_40_8_t ftable; /**< Flow table */
srv6_ad_flow_entry_t *cache; /**< Cache table */
dlist_elt_t *lru_pool;
u32 lru_head_index;
u32 index;
} srv6_ad_flow_localsid_t;
typedef struct
{
u16 msg_id_base; /**< API message ID base */
vlib_main_t *vlib_main; /**< [convenience] vlib main */
vnet_main_t *vnet_main; /**< [convenience] vnet main */
dpo_type_t srv6_ad_flow_dpo_type; /**< DPO type */
u32 srv6_localsid_behavior_id; /**< SRv6 LocalSID behavior number */
u32 *sw_iface_localsid2; /**< Retrieve local SID from iface */
u32 *sw_iface_localsid4; /**< Retrieve local SID from iface */
u32 *sw_iface_localsid6; /**< Retrieve local SID from iface */
srv6_ad_flow_localsid_t **sids; /**< Pool of AD SID pointers */
vlib_combined_counter_main_t
sid_bypass_counters; /**< Packets/bytes bypassing NF */
vlib_combined_counter_main_t sid_punt_counters; /**< Packets/bytes punted */
vlib_combined_counter_main_t sid_cache_full_counters;
vlib_combined_counter_main_t
rw_valid_counters; /**< Valid rewrite counters */
vlib_combined_counter_main_t
rw_invalid_counters; /**< Invalid rewrite counters */
} srv6_ad_flow_main_t;
typedef struct
{
srv6_ad_flow_localsid_t *ls;
f64 now;
} srv6_ad_is_idle_entry_ctx_t;
extern srv6_ad_flow_main_t srv6_ad_flow_main;
format_function_t format_srv6_ad_flow_localsid;
unformat_function_t unformat_srv6_ad_flow_localsid;
void srv6_ad_flow_dpo_lock (dpo_id_t *dpo);
void srv6_ad_flow_dpo_unlock (dpo_id_t *dpo);
extern vlib_node_registration_t srv6_ad_flow_localsid_node;
#endif /* __included_srv6_ad_flow_h__ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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