/* * 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: */