From f2a23cc8602525a325eaeaae6aca5e18882c33da Mon Sep 17 00:00:00 2001 From: Matus Fabian Date: Mon, 22 Jan 2018 03:41:53 -0800 Subject: NAT66 1:1 mapping (VPP-1108) Support the 1:1 translation of source address for IPv6 Change-Id: I934d18e5ec508bf7422d796ee5f172b79c048011 Signed-off-by: Matus Fabian --- src/plugins/nat/nat66.h | 89 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 src/plugins/nat/nat66.h (limited to 'src/plugins/nat/nat66.h') diff --git a/src/plugins/nat/nat66.h b/src/plugins/nat/nat66.h new file mode 100644 index 00000000000..d2ddd0c70e1 --- /dev/null +++ b/src/plugins/nat/nat66.h @@ -0,0 +1,89 @@ +/* + * 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 +#include + +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 +{ + /** Interface pool */ + snat_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; +} nat66_main_t; + +extern nat66_main_t nat66_main; +extern vlib_node_registration_t nat66_in2out_node; +extern vlib_node_registration_t nat66_out2in_node; + +void nat66_init (void); +typedef int (*nat66_interface_walk_fn_t) (snat_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); + +#define u8_ptr_add(ptr, index) (((u8 *)ptr) + index) +#define u16_net_add(u, val) clib_host_to_net_u16(clib_net_to_host_u16(u) + (val)) + +#endif /* __included_nat66_h__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ -- cgit 1.2.3-korg