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Ed Warnickecb9cada2015-12-08 15:45:58 -07001/*
AkshayaNadahallied4a2fd2016-08-09 13:38:04 +05302 * Copyright (c) 2016 Cisco and/or its affiliates.
Ed Warnickecb9cada2015-12-08 15:45:58 -07003 * 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:
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
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.
14 */
15/*
16 * ip/ip6.h: ip6 main include file
17 *
18 * Copyright (c) 2008 Eliot Dresselhaus
19 *
20 * Permission is hereby granted, free of charge, to any person obtaining
21 * a copy of this software and associated documentation files (the
22 * "Software"), to deal in the Software without restriction, including
23 * without limitation the rights to use, copy, modify, merge, publish,
24 * distribute, sublicense, and/or sell copies of the Software, and to
25 * permit persons to whom the Software is furnished to do so, subject to
26 * the following conditions:
27 *
28 * The above copyright notice and this permission notice shall be
29 * included in all copies or substantial portions of the Software.
30 *
31 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38 */
39
40#ifndef included_ip_ip6_h
41#define included_ip_ip6_h
42
43#include <vlib/mc.h>
John Lo1edfba92016-08-27 01:11:57 -040044#include <vlib/buffer.h>
45#include <vnet/ethernet/packet.h>
Ed Warnickecb9cada2015-12-08 15:45:58 -070046#include <vnet/ip/ip6_packet.h>
Ole Troan944f5482016-05-24 11:56:58 +020047#include <vnet/ip/ip6_hop_by_hop_packet.h>
Ed Warnickecb9cada2015-12-08 15:45:58 -070048#include <vnet/ip/lookup.h>
Ole Troan944f5482016-05-24 11:56:58 +020049#include <stdbool.h>
Ed Warnickecb9cada2015-12-08 15:45:58 -070050#include <vppinfra/bihash_24_8.h>
51#include <vppinfra/bihash_template.h>
Neale Ranns32e1c012016-11-22 17:07:28 +000052#include <vnet/util/radix.h>
Ed Warnickecb9cada2015-12-08 15:45:58 -070053
54/*
55 * Default size of the ip6 fib hash table
56 */
57#define IP6_FIB_DEFAULT_HASH_NUM_BUCKETS (64 * 1024)
58#define IP6_FIB_DEFAULT_HASH_MEMORY_SIZE (32<<20)
59
Dave Barachd7cb1b52016-12-09 09:52:16 -050060typedef struct
61{
Ed Warnickecb9cada2015-12-08 15:45:58 -070062 ip6_address_t addr;
63 u32 dst_address_length;
64 u32 vrf_index;
65} ip6_fib_key_t;
66
Dave Barachd7cb1b52016-12-09 09:52:16 -050067typedef struct
68{
Ed Warnickecb9cada2015-12-08 15:45:58 -070069 /* Table ID (hash key) for this FIB. */
70 u32 table_id;
71
72 /* Index into FIB vector. */
73 u32 index;
74
75 /* flow hash configuration */
Neale Ranns0bfe5d82016-08-25 15:29:12 +010076 flow_hash_config_t flow_hash_config;
Ed Warnickecb9cada2015-12-08 15:45:58 -070077} ip6_fib_t;
78
Neale Ranns32e1c012016-11-22 17:07:28 +000079typedef struct ip6_mfib_t
80{
81 /* Table ID (hash key) for this FIB. */
82 u32 table_id;
83
84 /* Index into FIB vector. */
85 u32 index;
86
87 /*
88 * Pointer to the top of a radix tree.
89 * This cannot be realloc'd, hence it cannot be inlined with this table
90 */
91 struct radix_node_head *rhead;
92} ip6_mfib_t;
93
Ed Warnickecb9cada2015-12-08 15:45:58 -070094struct ip6_main_t;
95
Ed Warnickecb9cada2015-12-08 15:45:58 -070096typedef void (ip6_add_del_interface_address_function_t)
97 (struct ip6_main_t * im,
98 uword opaque,
99 u32 sw_if_index,
100 ip6_address_t * address,
Dave Barachd7cb1b52016-12-09 09:52:16 -0500101 u32 address_length, u32 if_address_index, u32 is_del);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700102
Dave Barachd7cb1b52016-12-09 09:52:16 -0500103typedef struct
104{
105 ip6_add_del_interface_address_function_t *function;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700106 uword function_opaque;
107} ip6_add_del_interface_address_callback_t;
108
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100109/**
110 * Enumeration of the FIB table instance types
111 */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500112typedef enum ip6_fib_table_instance_type_t_
113{
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100114 /**
115 * This table stores the routes that are used to forward traffic.
116 * The key is the prefix, the result the adjacnecy to forward on.
117 */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500118 IP6_FIB_TABLE_FWDING,
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100119 /**
120 * The table that stores ALL routes learned by the DP.
Dave Barach75fc8542016-10-11 16:16:02 -0400121 * Some of these routes may not be ready to install in forwarding
122 * at a given time.
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100123 * The key in this table is the prefix, the result is the fib_entry_t
124 */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500125 IP6_FIB_TABLE_NON_FWDING,
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100126} ip6_fib_table_instance_type_t;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700127
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100128#define IP6_FIB_NUM_TABLES (IP6_FIB_TABLE_NON_FWDING+1)
129
130/**
131 * A represenation of a single IP6 table
132 */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500133typedef struct ip6_fib_table_instance_t_
134{
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100135 /* The hash table */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500136 BVT (clib_bihash) ip6_hash;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700137
138 /* bitmap / refcounts / vector of mask widths to search */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500139 uword *non_empty_dst_address_length_bitmap;
140 u8 *prefix_lengths_in_search_order;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700141 i32 dst_address_length_refcounts[129];
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100142} ip6_fib_table_instance_t;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700143
Dave Barachd7cb1b52016-12-09 09:52:16 -0500144typedef struct ip6_main_t
145{
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100146 /**
147 * The two FIB tables; fwding and non-fwding
148 */
149 ip6_fib_table_instance_t ip6_table[IP6_FIB_NUM_TABLES];
150
151 ip_lookup_main_t lookup_main;
Dave Barach75fc8542016-10-11 16:16:02 -0400152
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100153 /* Pool of FIBs. */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500154 struct fib_table_t_ *fibs;
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100155
Neale Ranns32e1c012016-11-22 17:07:28 +0000156 /** Vector of MFIBs. */
157 struct mfib_table_t_ *mfibs;
158
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100159 /* Network byte orders subnet mask for each prefix length */
Ed Warnickecb9cada2015-12-08 15:45:58 -0700160 ip6_address_t fib_masks[129];
161
162 /* Table index indexed by software interface. */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500163 u32 *fib_index_by_sw_if_index;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700164
Neale Ranns32e1c012016-11-22 17:07:28 +0000165 /** Table index indexed by software interface. */
166 u32 *mfib_index_by_sw_if_index;
167
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100168 /* IP6 enabled count by software interface */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500169 u8 *ip_enabled_by_sw_if_index;
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100170
Ed Warnickecb9cada2015-12-08 15:45:58 -0700171 /* Hash table mapping table id to fib index.
172 ID space is not necessarily dense; index space is dense. */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500173 uword *fib_index_by_table_id;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700174
Neale Ranns32e1c012016-11-22 17:07:28 +0000175 /** Hash table mapping table id to multicast fib index.
176 ID space is not necessarily dense; index space is dense. */
177 uword *mfib_index_by_table_id;
178
Ed Warnickecb9cada2015-12-08 15:45:58 -0700179 /* Hash table mapping interface rewrite adjacency index by sw if index. */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500180 uword *interface_route_adj_index_by_sw_if_index;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700181
182 /* Functions to call when interface address changes. */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500183 ip6_add_del_interface_address_callback_t
184 * add_del_interface_address_callbacks;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700185
186 /* Template used to generate IP6 neighbor solicitation packets. */
187 vlib_packet_template_t discover_neighbor_packet_template;
188
Ed Warnickecb9cada2015-12-08 15:45:58 -0700189 /* ip6 lookup table config parameters */
190 u32 lookup_table_nbuckets;
191 uword lookup_table_size;
192
193 /* Seed for Jenkins hash used to compute ip6 flow hash. */
194 u32 flow_hash_seed;
195
Dave Barachd7cb1b52016-12-09 09:52:16 -0500196 struct
197 {
Ed Warnickecb9cada2015-12-08 15:45:58 -0700198 /* TTL to use for host generated packets. */
199 u8 ttl;
200
201 u8 pad[3];
202 } host_config;
Ole Troan944f5482016-05-24 11:56:58 +0200203
204 /* HBH processing enabled? */
205 u8 hbh_enabled;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700206} ip6_main_t;
207
208/* Global ip6 main structure. */
209extern ip6_main_t ip6_main;
210
211/* Global ip6 input node. Errors get attached to ip6 input node. */
212extern vlib_node_registration_t ip6_input_node;
213extern vlib_node_registration_t ip6_rewrite_node;
Neale Ranns32e1c012016-11-22 17:07:28 +0000214extern vlib_node_registration_t ip6_rewrite_mcast_node;
Pierre Pfister0febaf12016-06-08 12:23:21 +0100215extern vlib_node_registration_t ip6_rewrite_local_node;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700216extern vlib_node_registration_t ip6_discover_neighbor_node;
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100217extern vlib_node_registration_t ip6_glean_node;
218extern vlib_node_registration_t ip6_midchain_node;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700219
220extern vlib_node_registration_t ip6_icmp_neighbor_discovery_event_node;
221
222/* ipv6 neighbor discovery - timer/event types */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500223typedef enum
224{
Ed Warnickecb9cada2015-12-08 15:45:58 -0700225 ICMP6_ND_EVENT_INIT,
226} ip6_icmp_neighbor_discovery_event_type_t;
227
Dave Barachd7cb1b52016-12-09 09:52:16 -0500228typedef union
229{
Ed Warnickecb9cada2015-12-08 15:45:58 -0700230 u32 add_del_swindex;
Dave Barachd7cb1b52016-12-09 09:52:16 -0500231 struct
232 {
Ed Warnickecb9cada2015-12-08 15:45:58 -0700233 u32 up_down_swindex;
234 u32 fib_index;
235 } up_down_event;
236} ip6_icmp_neighbor_discovery_event_data_t;
237
Ed Warnickecb9cada2015-12-08 15:45:58 -0700238always_inline uword
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100239ip6_destination_matches_route (const ip6_main_t * im,
240 const ip6_address_t * key,
Dave Barachd7cb1b52016-12-09 09:52:16 -0500241 const ip6_address_t * dest, uword dest_length)
Ed Warnickecb9cada2015-12-08 15:45:58 -0700242{
243 int i;
244 for (i = 0; i < ARRAY_LEN (key->as_uword); i++)
245 {
Dave Barachd7cb1b52016-12-09 09:52:16 -0500246 if ((key->as_uword[i] ^ dest->as_uword[i]) & im->
247 fib_masks[dest_length].as_uword[i])
Ed Warnickecb9cada2015-12-08 15:45:58 -0700248 return 0;
249 }
250 return 1;
251}
252
253always_inline uword
254ip6_destination_matches_interface (ip6_main_t * im,
255 ip6_address_t * key,
256 ip_interface_address_t * ia)
257{
Dave Barachd7cb1b52016-12-09 09:52:16 -0500258 ip6_address_t *a = ip_interface_address_get_address (&im->lookup_main, ia);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700259 return ip6_destination_matches_route (im, key, a, ia->address_length);
260}
261
262/* As above but allows for unaligned destinations (e.g. works right from IP header of packet). */
263always_inline uword
264ip6_unaligned_destination_matches_route (ip6_main_t * im,
265 ip6_address_t * key,
266 ip6_address_t * dest,
267 uword dest_length)
268{
269 int i;
270 for (i = 0; i < ARRAY_LEN (key->as_uword); i++)
271 {
Dave Barachd7cb1b52016-12-09 09:52:16 -0500272 if ((clib_mem_unaligned (&key->as_uword[i], uword) ^ dest->as_uword[i])
273 & im->fib_masks[dest_length].as_uword[i])
Ed Warnickecb9cada2015-12-08 15:45:58 -0700274 return 0;
275 }
276 return 1;
277}
278
Pierre Pfisterd076f192016-06-22 12:58:30 +0100279always_inline int
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100280ip6_src_address_for_packet (ip_lookup_main_t * lm,
Dave Barachd7cb1b52016-12-09 09:52:16 -0500281 u32 sw_if_index, ip6_address_t * src)
Ed Warnickecb9cada2015-12-08 15:45:58 -0700282{
Dave Barachd7cb1b52016-12-09 09:52:16 -0500283 u32 if_add_index = lm->if_address_pool_index_by_sw_if_index[sw_if_index];
284 if (PREDICT_TRUE (if_add_index != ~0))
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100285 {
Dave Barachd7cb1b52016-12-09 09:52:16 -0500286 ip_interface_address_t *if_add =
287 pool_elt_at_index (lm->if_address_pool, if_add_index);
288 ip6_address_t *if_ip = ip_interface_address_get_address (lm, if_add);
289 *src = *if_ip;
290 return (0);
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100291 }
Dave Barachd7cb1b52016-12-09 09:52:16 -0500292 else
293 {
294 src->as_u64[0] = 0;
295 src->as_u64[1] = 0;
296 }
297 return (!0);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700298}
299
300/* Find interface address which matches destination. */
301always_inline ip6_address_t *
Dave Barachd7cb1b52016-12-09 09:52:16 -0500302ip6_interface_address_matching_destination (ip6_main_t * im,
303 ip6_address_t * dst,
304 u32 sw_if_index,
305 ip_interface_address_t **
306 result_ia)
Ed Warnickecb9cada2015-12-08 15:45:58 -0700307{
Dave Barachd7cb1b52016-12-09 09:52:16 -0500308 ip_lookup_main_t *lm = &im->lookup_main;
309 ip_interface_address_t *ia;
310 ip6_address_t *result = 0;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700311
Dave Barachd7cb1b52016-12-09 09:52:16 -0500312 /* *INDENT-OFF* */
Dave Barach75fc8542016-10-11 16:16:02 -0400313 foreach_ip_interface_address (lm, ia, sw_if_index,
Ed Warnickecb9cada2015-12-08 15:45:58 -0700314 1 /* honor unnumbered */,
315 ({
316 ip6_address_t * a = ip_interface_address_get_address (lm, ia);
317 if (ip6_destination_matches_route (im, dst, a, ia->address_length))
318 {
319 result = a;
320 break;
321 }
322 }));
Dave Barachd7cb1b52016-12-09 09:52:16 -0500323 /* *INDENT-ON* */
Ed Warnickecb9cada2015-12-08 15:45:58 -0700324 if (result_ia)
325 *result_ia = result ? ia : 0;
326 return result;
327}
328
Dave Barachd7cb1b52016-12-09 09:52:16 -0500329clib_error_t *ip6_add_del_interface_address (vlib_main_t * vm,
330 u32 sw_if_index,
331 ip6_address_t * address,
332 u32 address_length, u32 is_del);
333void ip6_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700334
335int ip6_address_compare (ip6_address_t * a1, ip6_address_t * a2);
336
Dave Barachd7cb1b52016-12-09 09:52:16 -0500337clib_error_t *ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst,
338 u32 sw_if_index);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700339
Dave Barachd7cb1b52016-12-09 09:52:16 -0500340clib_error_t *ip6_set_neighbor_limit (u32 neighbor_limit);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700341
342uword
Ed Warnickecb9cada2015-12-08 15:45:58 -0700343ip6_udp_register_listener (vlib_main_t * vm,
Dave Barachd7cb1b52016-12-09 09:52:16 -0500344 u16 dst_port, u32 next_node_index);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700345
Dave Barachd7cb1b52016-12-09 09:52:16 -0500346u16 ip6_tcp_udp_icmp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0,
347 ip6_header_t * ip0,
348 int *bogus_lengthp);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700349
350void ip6_register_protocol (u32 protocol, u32 node_index);
351
352serialize_function_t serialize_vnet_ip6_main, unserialize_vnet_ip6_main;
353
Neale Rannsb80c5362016-10-08 13:03:40 +0100354void ip6_ethernet_update_adjacency (vnet_main_t * vnm,
Dave Barachd7cb1b52016-12-09 09:52:16 -0500355 u32 sw_if_index, u32 ai);
Neale Rannsb80c5362016-10-08 13:03:40 +0100356
Ed Warnickecb9cada2015-12-08 15:45:58 -0700357int
358vnet_set_ip6_ethernet_neighbor (vlib_main_t * vm,
Dave Barachd7cb1b52016-12-09 09:52:16 -0500359 u32 sw_if_index,
360 ip6_address_t * a,
361 u8 * link_layer_address,
362 uword n_bytes_link_layer_address,
363 int is_static);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700364int
365vnet_unset_ip6_ethernet_neighbor (vlib_main_t * vm,
Dave Barachd7cb1b52016-12-09 09:52:16 -0500366 u32 sw_if_index,
367 ip6_address_t * a,
368 u8 * link_layer_address,
369 uword n_bytes_link_layer_address);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700370
Dave Barach75fc8542016-10-11 16:16:02 -0400371void
Dave Barachd7cb1b52016-12-09 09:52:16 -0500372ip6_link_local_address_from_ethernet_mac_address (ip6_address_t * ip,
373 u8 * mac);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700374
Dave Barach75fc8542016-10-11 16:16:02 -0400375void
Dave Barachd7cb1b52016-12-09 09:52:16 -0500376ip6_ethernet_mac_address_from_link_local_address (u8 * mac,
377 ip6_address_t * ip);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700378
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100379int vnet_set_ip6_flow_hash (u32 table_id,
380 flow_hash_config_t flow_hash_config);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700381
382int
Dave Barachd7cb1b52016-12-09 09:52:16 -0500383ip6_neighbor_ra_config (vlib_main_t * vm, u32 sw_if_index,
384 u8 suppress, u8 managed, u8 other,
385 u8 ll_option, u8 send_unicast, u8 cease,
386 u8 use_lifetime, u32 lifetime,
387 u32 initial_count, u32 initial_interval,
388 u32 max_interval, u32 min_interval, u8 is_no);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700389
390int
Dave Barachd7cb1b52016-12-09 09:52:16 -0500391ip6_neighbor_ra_prefix (vlib_main_t * vm, u32 sw_if_index,
392 ip6_address_t * prefix_addr, u8 prefix_len,
393 u8 use_default, u32 val_lifetime, u32 pref_lifetime,
394 u8 no_advertise, u8 off_link, u8 no_autoconfig,
395 u8 no_onlink, u8 is_no);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700396
397
Dave Barachd7cb1b52016-12-09 09:52:16 -0500398clib_error_t *enable_ip6_interface (vlib_main_t * vm, u32 sw_if_index);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700399
Dave Barachd7cb1b52016-12-09 09:52:16 -0500400clib_error_t *disable_ip6_interface (vlib_main_t * vm, u32 sw_if_index);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700401
Dave Barachd7cb1b52016-12-09 09:52:16 -0500402int ip6_interface_enabled (vlib_main_t * vm, u32 sw_if_index);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700403
Dave Barachd7cb1b52016-12-09 09:52:16 -0500404clib_error_t *set_ip6_link_local_address (vlib_main_t * vm,
405 u32 sw_if_index,
Neale Ranns75152282017-01-09 01:00:45 -0800406 ip6_address_t * address);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700407
Dave Barachd7cb1b52016-12-09 09:52:16 -0500408void vnet_register_ip6_neighbor_resolution_event (vnet_main_t * vnm,
409 void *address_arg,
410 uword node_index,
411 uword type_opaque,
412 uword data);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700413
Dave Barach75fc8542016-10-11 16:16:02 -0400414int vnet_add_del_ip6_nd_change_event (vnet_main_t * vnm,
Dave Barachd7cb1b52016-12-09 09:52:16 -0500415 void *data_callback,
John Lo1edfba92016-08-27 01:11:57 -0400416 u32 pid,
Dave Barachd7cb1b52016-12-09 09:52:16 -0500417 void *address_arg,
John Lo1edfba92016-08-27 01:11:57 -0400418 uword node_index,
419 uword type_opaque,
Dave Barachd7cb1b52016-12-09 09:52:16 -0500420 uword data, int is_add);
John Lo1edfba92016-08-27 01:11:57 -0400421
422int vnet_ip6_nd_term (vlib_main_t * vm,
423 vlib_node_runtime_t * node,
424 vlib_buffer_t * p0,
425 ethernet_header_t * eth,
426 ip6_header_t * ip,
Dave Barachd7cb1b52016-12-09 09:52:16 -0500427 u32 sw_if_index, u16 bd_index, u8 shg);
John Lo1edfba92016-08-27 01:11:57 -0400428
John Lo2b81eb82017-01-30 13:12:10 -0500429u8 *format_ip6_forward_next_trace (u8 * s, va_list * args);
430
431u32 ip6_tcp_udp_icmp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0);
432
Dave Barach75fc8542016-10-11 16:16:02 -0400433int vnet_set_ip6_classify_intfc (vlib_main_t * vm, u32 sw_if_index,
Dave Barachd7cb1b52016-12-09 09:52:16 -0500434 u32 table_index);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700435extern vlib_node_registration_t ip6_lookup_node;
436
437/* Compute flow hash. We'll use it to select which Sponge to use for this
438 flow. And other things. */
439always_inline u32
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100440ip6_compute_flow_hash (const ip6_header_t * ip,
441 flow_hash_config_t flow_hash_config)
Ed Warnickecb9cada2015-12-08 15:45:58 -0700442{
Dave Barachd7cb1b52016-12-09 09:52:16 -0500443 tcp_header_t *tcp = (void *) (ip + 1);
444 u64 a, b, c;
445 u64 t1, t2;
446 uword is_tcp_udp = (ip->protocol == IP_PROTOCOL_TCP
447 || ip->protocol == IP_PROTOCOL_UDP);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700448
Dave Barachd7cb1b52016-12-09 09:52:16 -0500449 t1 = (ip->src_address.as_u64[0] ^ ip->src_address.as_u64[1]);
450 t1 = (flow_hash_config & IP_FLOW_HASH_SRC_ADDR) ? t1 : 0;
Dave Barach75fc8542016-10-11 16:16:02 -0400451
Dave Barachd7cb1b52016-12-09 09:52:16 -0500452 t2 = (ip->dst_address.as_u64[0] ^ ip->dst_address.as_u64[1]);
453 t2 = (flow_hash_config & IP_FLOW_HASH_DST_ADDR) ? t2 : 0;
Dave Barach75fc8542016-10-11 16:16:02 -0400454
Dave Barachd7cb1b52016-12-09 09:52:16 -0500455 a = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t2 : t1;
456 b = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t1 : t2;
457 b ^= (flow_hash_config & IP_FLOW_HASH_PROTO) ? ip->protocol : 0;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700458
Dave Barachd7cb1b52016-12-09 09:52:16 -0500459 t1 = is_tcp_udp ? tcp->ports.src : 0;
460 t2 = is_tcp_udp ? tcp->ports.dst : 0;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700461
Dave Barachd7cb1b52016-12-09 09:52:16 -0500462 t1 = (flow_hash_config & IP_FLOW_HASH_SRC_PORT) ? t1 : 0;
463 t2 = (flow_hash_config & IP_FLOW_HASH_DST_PORT) ? t2 : 0;
Dave Barach75fc8542016-10-11 16:16:02 -0400464
Dave Barachd7cb1b52016-12-09 09:52:16 -0500465 c = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ?
466 ((t1 << 16) | t2) : ((t2 << 16) | t1);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700467
Dave Barachd7cb1b52016-12-09 09:52:16 -0500468 hash_mix64 (a, b, c);
469 return (u32) c;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700470}
471
Ole Troan944f5482016-05-24 11:56:58 +0200472/*
473 * Hop-by-Hop handling
474 */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500475typedef struct
476{
Ole Troan944f5482016-05-24 11:56:58 +0200477 /* Array of function pointers to HBH option handling routines */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500478 int (*options[256]) (vlib_buffer_t * b, ip6_header_t * ip,
479 ip6_hop_by_hop_option_t * opt);
480 u8 *(*trace[256]) (u8 * s, ip6_hop_by_hop_option_t * opt);
Shwethaa91cbe62016-08-08 15:51:04 +0100481 uword next_override;
Ole Troan944f5482016-05-24 11:56:58 +0200482} ip6_hop_by_hop_main_t;
483
484extern ip6_hop_by_hop_main_t ip6_hop_by_hop_main;
485
486int ip6_hbh_register_option (u8 option,
Dave Barachd7cb1b52016-12-09 09:52:16 -0500487 int options (vlib_buffer_t * b,
488 ip6_header_t * ip,
489 ip6_hop_by_hop_option_t * opt),
490 u8 * trace (u8 * s,
491 ip6_hop_by_hop_option_t * opt));
Ole Troan944f5482016-05-24 11:56:58 +0200492int ip6_hbh_unregister_option (u8 option);
Shwethaa91cbe62016-08-08 15:51:04 +0100493void ip6_hbh_set_next_override (uword next);
Ole Troan944f5482016-05-24 11:56:58 +0200494
Ed Warnickecb9cada2015-12-08 15:45:58 -0700495#endif /* included_ip_ip6_h */
Dave Barachd7cb1b52016-12-09 09:52:16 -0500496
497/*
498 * fd.io coding-style-patch-verification: ON
499 *
500 * Local Variables:
501 * eval: (c-set-style "gnu")
502 * End:
503 */