2 * Copyright (c) 2017 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
15 #ifndef __included_dslite_h__
16 #define __included_dslite_h__
18 #include <vppinfra/dlist.h>
19 #include <vppinfra/bihash_8_8.h>
20 #include <vppinfra/bihash_16_8.h>
21 #include <vppinfra/bihash_24_8.h>
23 #include <nat/lib/lib.h>
24 #include <nat/lib/alloc.h>
25 #include <nat/lib/inlines.h>
33 /* session key (4-tuple) */
42 u16 protocol:3, fib_index:13;
54 ip6_address_t softwire_id;
62 } dslite_session_key_t;
65 typedef CLIB_PACKED (struct
67 nat_session_key_t out2in;
68 dslite_session_key_t in2out;
70 u32 per_b4_list_head_index;
80 u32 sessions_per_b4_list_head_index;
86 /* Main lookup tables */
87 clib_bihash_8_8_t out2in;
88 clib_bihash_24_8_t in2out;
91 clib_bihash_16_8_t b4_hash;
97 dslite_session_t *sessions;
99 /* Pool of doubly-linked list elements */
100 dlist_elt_t *list_pool;
101 } dslite_per_thread_data_t;
105 ip6_address_t aftr_ip6_addr;
106 ip4_address_t aftr_ip4_addr;
107 ip6_address_t b4_ip6_addr;
108 ip4_address_t b4_ip4_addr;
109 dslite_per_thread_data_t *per_thread_data;
111 u32 first_worker_index;
114 /* nat address pool */
117 /* counters/gauges */
118 vlib_simple_counter_main_t total_b4s;
119 vlib_simple_counter_main_t total_sessions;
122 u32 dslite_in2out_node_index;
123 u32 dslite_in2out_slowpath_node_index;
124 u32 dslite_out2in_node_index;
126 /* If set then the DSLite component behaves as CPE/B4
127 * otherwise it behaves as AFTR */
145 #define foreach_dslite_error \
146 _(IN2OUT, "valid in2out DS-Lite packets") \
147 _(OUT2IN, "valid out2in DS-Lite packets") \
148 _(CE_ENCAP, "valid CE encap DS-Lite packets") \
149 _(CE_DECAP, "valid CE decap DS-Lite packets") \
150 _(NO_TRANSLATION, "no translation") \
151 _(BAD_IP6_PROTOCOL, "bad ip6 protocol") \
152 _(OUT_OF_PORTS, "out of ports") \
153 _(UNSUPPORTED_PROTOCOL, "unsupported protocol") \
154 _(BAD_ICMP_TYPE, "unsupported icmp type") \
155 _(UNKNOWN, "unknown")
159 #define _(sym,str) DSLITE_ERROR_##sym,
165 extern dslite_main_t dslite_main;
166 extern vlib_node_registration_t dslite_in2out_node;
167 extern vlib_node_registration_t dslite_in2out_slowpath_node;
168 extern vlib_node_registration_t dslite_out2in_node;
169 extern vlib_node_registration_t dslite_ce_encap_node;
170 extern vlib_node_registration_t dslite_ce_decap_node;
172 void dslite_set_ce (dslite_main_t * dm, u8 set);
173 int dslite_set_aftr_ip6_addr (dslite_main_t * dm, ip6_address_t * addr);
174 int dslite_set_b4_ip6_addr (dslite_main_t * dm, ip6_address_t * addr);
175 int dslite_set_aftr_ip4_addr (dslite_main_t * dm, ip4_address_t * addr);
176 int dslite_set_b4_ip4_addr (dslite_main_t * dm, ip4_address_t * addr);
177 int dslite_add_del_pool_addr (dslite_main_t * dm, ip4_address_t * addr,
179 u8 *format_dslite_trace (u8 * s, va_list * args);
180 u8 *format_dslite_ce_trace (u8 * s, va_list * args);
182 #endif /* __included_dslite_h__ */
185 * fd.io coding-style-patch-verification: ON
188 * eval: (c-set-style "gnu")