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/*
 * Copyright (c) 2017 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 SRC_PLUGINS_STN_STN_H_
#define SRC_PLUGINS_STN_STN_H_

#include <vlib/vlib.h>
#include <vnet/ip/ip4.h>
#include <vnet/ip/ip6.h>
#include <vppinfra/bihash_16_8.h>

typedef struct {
  ip46_address_t address;
  u32 next_node_index;
  u32 sw_if_index;
} stn_rule_t;

typedef struct {
  /* pool of stn rules */
  stn_rule_t *rules;

  /* number of rules */
  u32 n_rules;

  /* hash table used to retrieve the rule from the ip address */
  clib_bihash_16_8_t rule_by_address_table;

  u32 punt_to_stn_ip4_next_index;
  u32 punt_to_stn_ip6_next_index;

  u16 msg_id_base;
} stn_main_t;

typedef struct {
  /** Destination address of intercepted packets */
  ip46_address_t address;
  /** TX interface to send packets to */
  u32 sw_if_index;
  /** Whether to delete the rule */
  u8 del;
} stn_rule_add_del_args_t;

/**
 * Add or delete an stn rule.
 */
int stn_rule_add_del (stn_rule_add_del_args_t *args);

extern stn_main_t stn_main;

clib_error_t *
stn_api_init (vlib_main_t * vm, stn_main_t * sm);

#endif /* SRC_PLUGINS_STN_STN_H_ */
value] "+r" (value):[data] "rm" (data)); return value; } #endif /* __defined_crc_u32__ */ static inline u64 clib_bihash_hash_48_8 (const clib_bihash_kv_48_8_t * v) { const u32 *dp = (const u32 *) &v->key[0]; u32 value = 0; value = crc_u32 (dp[0], value); value = crc_u32 (dp[1], value); value = crc_u32 (dp[2], value); value = crc_u32 (dp[3], value); value = crc_u32 (dp[4], value); value = crc_u32 (dp[5], value); value = crc_u32 (dp[6], value); value = crc_u32 (dp[7], value); value = crc_u32 (dp[8], value); value = crc_u32 (dp[9], value); value = crc_u32 (dp[10], value); value = crc_u32 (dp[11], value); return value; } #else static inline u64 clib_bihash_hash_48_8 (const clib_bihash_kv_48_8_t * v) { u64 tmp = v->key[0] ^ v->key[1] ^ v->key[2] ^ v->key[3] ^ v->key[4] ^ v->key[5]; return clib_xxhash (tmp); } #endif static inline u8 * format_bihash_kvp_48_8 (u8 * s, va_list * args) { clib_bihash_kv_48_8_t *v = va_arg (*args, clib_bihash_kv_48_8_t *); s = format (s, "key %llu %llu %llu %llu %llu %llu value %llu", v->key[0], v->key[1], v->key[2], v->key[3], v->key[4], v->key[5], v->value); return s; } static inline int clib_bihash_key_compare_48_8 (const u64 * a, const u64 * b) { return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2]) | (a[3] ^ b[3]) | (a[4] ^ b[4]) | (a[5] ^ b[5])) == 0; } #undef __included_bihash_template_h__ #include <vppinfra/bihash_template.h> #endif /* __included_bihash_48_8_h__ */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */