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/*
* 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
* @brief NAT66 global declarations
*/
#ifndef __included_nat66_h__
#define __included_nat66_h__
#include <vnet/ip/ip.h>
#include <vnet/fib/fib_table.h>
#include <vppinfra/bihash_24_8.h>
typedef struct
{
ip6_address_t l_addr;
ip6_address_t e_addr;
u32 fib_index;
} nat66_static_mapping_t;
typedef struct
{
union
{
struct
{
ip6_address_t addr;
u32 fib_index;
u32 rsvd;
};
u64 as_u64[3];
};
} nat66_sm_key_t;
typedef struct
{
u32 sw_if_index;
u8 flags;
} nat66_interface_t;
#define NAT66_INTERFACE_FLAG_IS_INSIDE 1
#define NAT66_INTERFACE_FLAG_IS_OUTSIDE 2
#define nat66_interface_is_inside(i) i->flags & NAT66_INTERFACE_FLAG_IS_INSIDE
#define nat66_interface_is_outside(i) i->flags & NAT66_INTERFACE_FLAG_IS_OUTSIDE
typedef struct
{
/** Interface pool */
nat66_interface_t *interfaces;
/** Static mapping pool */
nat66_static_mapping_t *sm;
/** Static mapping by local address lookup table */
clib_bihash_24_8_t sm_l;
/** Static mapping by external address lookup table */
clib_bihash_24_8_t sm_e;
/** Session counters */
vlib_combined_counter_main_t session_counters;
u32 outside_vrf_id;
u32 outside_fib_index;
fib_source_t nat_fib_src_hi;
u16 msg_id_base;
u8 log_level;
u8 enabled;
vlib_simple_counter_main_t in2out_packets;
vlib_simple_counter_main_t out2in_packets;;
} nat66_main_t;
#define nat66_elog(_level, _str) \
do \
{ \
nat66_main_t *nm = &nat66_main; \
if (PREDICT_FALSE (nm->log_level >= _level)) \
{ \
ELOG_TYPE_DECLARE (e) = \
{ \
.format = "nat66-msg " _str, \
.format_args = "", \
}; \
ELOG_DATA (&vlib_global_main.elog_main, e); \
} \
} while (0);
#define nat66_elog_warn(nat_elog_str) \
nat66_elog(0x02, "[warning] " nat_elog_str)
extern nat66_main_t nat66_main;
extern vlib_node_registration_t nat66_in2out_node;
extern vlib_node_registration_t nat66_out2in_node;
typedef int (*nat66_interface_walk_fn_t) (nat66_interface_t * i, void *ctx);
void nat66_interfaces_walk (nat66_interface_walk_fn_t fn, void *ctx);
int nat66_interface_add_del (u32 sw_if_index, u8 is_inside, u8 is_add);
typedef int (*nat66_static_mapping_walk_fn_t) (nat66_static_mapping_t * sm,
void *ctx);
void nat66_static_mappings_walk (nat66_static_mapping_walk_fn_t fn,
void *ctx);
nat66_static_mapping_t *nat66_static_mapping_get (ip6_address_t * addr,
u32 fib_index, u8 is_local);
int nat66_static_mapping_add_del (ip6_address_t * l_addr,
ip6_address_t * e_addr, u32 vrf_id,
u8 is_add);
int nat66_plugin_enable (u32 outside_vrf);
int nat66_plugin_disable ();
#endif /* __included_nat66_h__ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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