blob: 1a8ece702a65cdc7fb9d4dde572d82044eefc1b4 [file] [log] [blame]
Mohsin Kazmi61b94c62018-08-20 18:32:39 +02001/*
2 * decap.c: vxlan gbp tunnel decap packet processing
3 *
4 * Copyright (c) 2018 Cisco and/or its affiliates.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18#include <vlib/vlib.h>
19#include <vnet/pg/pg.h>
20#include <vnet/vxlan-gbp/vxlan_gbp.h>
21
22vlib_node_registration_t vxlan4_gbp_input_node;
23vlib_node_registration_t vxlan6_gbp_input_node;
24
25typedef struct
26{
27 u32 next_index;
28 u32 tunnel_index;
29 u32 error;
30 u32 vni;
31 u16 sclass;
Neale Ranns93cc3ee2018-10-10 07:22:51 -070032 u8 flags;
Mohsin Kazmi61b94c62018-08-20 18:32:39 +020033} vxlan_gbp_rx_trace_t;
34
35static u8 *
36format_vxlan_gbp_rx_trace (u8 * s, va_list * args)
37{
38 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
39 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
40 vxlan_gbp_rx_trace_t *t = va_arg (*args, vxlan_gbp_rx_trace_t *);
41
42 if (t->tunnel_index == ~0)
43 return format (s,
44 "VXLAN_GBP decap error - tunnel for vni %d does not exist",
45 t->vni);
46 return format (s,
47 "VXLAN_GBP decap from vxlan_gbp_tunnel%d vni %d sclass %d"
Neale Ranns93cc3ee2018-10-10 07:22:51 -070048 " flags %U next %d error %d",
49 t->tunnel_index, t->vni, t->sclass,
50 format_vxlan_gbp_header_gpflags, t->flags,
51 t->next_index, t->error);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +020052}
53
54always_inline u32
55buf_fib_index (vlib_buffer_t * b, u32 is_ip4)
56{
57 u32 sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_TX];
58 if (sw_if_index != (u32) ~ 0)
59 return sw_if_index;
60
61 u32 *fib_index_by_sw_if_index = is_ip4 ?
62 ip4_main.fib_index_by_sw_if_index : ip6_main.fib_index_by_sw_if_index;
63 sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX];
64
65 return vec_elt (fib_index_by_sw_if_index, sw_if_index);
66}
67
68typedef vxlan4_gbp_tunnel_key_t last_tunnel_cache4;
69
70always_inline vxlan_gbp_tunnel_t *
71vxlan4_gbp_find_tunnel (vxlan_gbp_main_t * vxm, last_tunnel_cache4 * cache,
72 u32 fib_index, ip4_header_t * ip4_0,
Neale Ranns665581a2019-03-05 06:11:57 -080073 vxlan_gbp_header_t * vxlan_gbp0)
Mohsin Kazmi61b94c62018-08-20 18:32:39 +020074{
Neale Ranns665581a2019-03-05 06:11:57 -080075 /*
76 * Check unicast first since that's where most of the traffic comes from
77 * Make sure VXLAN_GBP tunnel exist according to packet SIP, DIP and VNI
78 */
Mohsin Kazmi61b94c62018-08-20 18:32:39 +020079 vxlan4_gbp_tunnel_key_t key4;
Neale Ranns665581a2019-03-05 06:11:57 -080080 int rv;
81
Mohsin Kazmi61b94c62018-08-20 18:32:39 +020082 key4.key[1] = ((u64) fib_index << 32) | vxlan_gbp0->vni_reserved;
Neale Ranns665581a2019-03-05 06:11:57 -080083 key4.key[0] = (((u64) ip4_0->dst_address.as_u32 << 32) |
84 ip4_0->src_address.as_u32);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +020085
Neale Ranns665581a2019-03-05 06:11:57 -080086 if (PREDICT_FALSE (key4.key[0] != cache->key[0] ||
87 key4.key[1] != cache->key[1]))
Mohsin Kazmi61b94c62018-08-20 18:32:39 +020088 {
Neale Ranns665581a2019-03-05 06:11:57 -080089 rv = clib_bihash_search_inline_16_8 (&vxm->vxlan4_gbp_tunnel_by_key,
90 &key4);
91 if (PREDICT_FALSE (rv == 0))
92 {
93 *cache = key4;
94 return (pool_elt_at_index (vxm->tunnels, cache->value));
95 }
Mohsin Kazmi61b94c62018-08-20 18:32:39 +020096 }
Mohsin Kazmi61b94c62018-08-20 18:32:39 +020097 else
98 {
Neale Ranns665581a2019-03-05 06:11:57 -080099 return (pool_elt_at_index (vxm->tunnels, cache->value));
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200100 }
101
Neale Ranns665581a2019-03-05 06:11:57 -0800102 /* No unicast match - try multicast */
103 if (PREDICT_TRUE (!ip4_address_is_multicast (&ip4_0->dst_address)))
104 return (NULL);
105
106 key4.key[0] = ip4_0->dst_address.as_u32;
107 /* Make sure mcast VXLAN_GBP tunnel exist by packet DIP and VNI */
108 rv = clib_bihash_search_inline_16_8 (&vxm->vxlan4_gbp_tunnel_by_key, &key4);
109
110 if (PREDICT_FALSE (rv != 0))
111 return (NULL);
112
113 return (pool_elt_at_index (vxm->tunnels, key4.value));
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200114}
115
116typedef vxlan6_gbp_tunnel_key_t last_tunnel_cache6;
117
118always_inline vxlan_gbp_tunnel_t *
119vxlan6_gbp_find_tunnel (vxlan_gbp_main_t * vxm, last_tunnel_cache6 * cache,
120 u32 fib_index, ip6_header_t * ip6_0,
Neale Ranns665581a2019-03-05 06:11:57 -0800121 vxlan_gbp_header_t * vxlan_gbp0)
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200122{
123 /* Make sure VXLAN_GBP tunnel exist according to packet SIP and VNI */
124 vxlan6_gbp_tunnel_key_t key6 = {
125 .key = {
126 [0] = ip6_0->src_address.as_u64[0],
127 [1] = ip6_0->src_address.as_u64[1],
128 [2] = (((u64) fib_index) << 32) | vxlan_gbp0->vni_reserved,
129 }
130 };
Neale Ranns665581a2019-03-05 06:11:57 -0800131 int rv;
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200132
133 if (PREDICT_FALSE
134 (clib_bihash_key_compare_24_8 (key6.key, cache->key) == 0))
135 {
Neale Ranns665581a2019-03-05 06:11:57 -0800136 rv = clib_bihash_search_inline_24_8 (&vxm->vxlan6_gbp_tunnel_by_key,
137 &key6);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200138 if (PREDICT_FALSE (rv != 0))
Neale Ranns665581a2019-03-05 06:11:57 -0800139 return NULL;
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200140
141 *cache = key6;
142 }
143 vxlan_gbp_tunnel_t *t0 = pool_elt_at_index (vxm->tunnels, cache->value);
144
145 /* Validate VXLAN_GBP tunnel SIP against packet DIP */
Neale Ranns665581a2019-03-05 06:11:57 -0800146 if (PREDICT_FALSE
147 (!ip6_address_is_equal (&ip6_0->dst_address, &t0->src.ip6)))
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200148 {
149 /* try multicast */
150 if (PREDICT_TRUE (!ip6_address_is_multicast (&ip6_0->dst_address)))
151 return 0;
152
153 /* Make sure mcast VXLAN_GBP tunnel exist by packet DIP and VNI */
154 key6.key[0] = ip6_0->dst_address.as_u64[0];
155 key6.key[1] = ip6_0->dst_address.as_u64[1];
Neale Ranns665581a2019-03-05 06:11:57 -0800156 rv = clib_bihash_search_inline_24_8 (&vxm->vxlan6_gbp_tunnel_by_key,
157 &key6);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200158 if (PREDICT_FALSE (rv != 0))
159 return 0;
160
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200161 }
162
163 return t0;
164}
165
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700166always_inline vxlan_gbp_input_next_t
167vxlan_gbp_tunnel_get_next (const vxlan_gbp_tunnel_t * t, vlib_buffer_t * b0)
168{
169 if (VXLAN_GBP_TUNNEL_MODE_L2 == t->mode)
170 return (VXLAN_GBP_INPUT_NEXT_L2_INPUT);
171 else
172 {
173 ethernet_header_t *e0;
174 u16 type0;
175
176 e0 = vlib_buffer_get_current (b0);
177 vlib_buffer_advance (b0, sizeof (*e0));
178 type0 = clib_net_to_host_u16 (e0->type);
179 switch (type0)
180 {
181 case ETHERNET_TYPE_IP4:
182 return (VXLAN_GBP_INPUT_NEXT_IP4_INPUT);
183 case ETHERNET_TYPE_IP6:
184 return (VXLAN_GBP_INPUT_NEXT_IP6_INPUT);
185 }
186 }
187 return (VXLAN_GBP_INPUT_NEXT_DROP);
188}
189
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200190always_inline uword
191vxlan_gbp_input (vlib_main_t * vm,
192 vlib_node_runtime_t * node,
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700193 vlib_frame_t * from_frame, u8 is_ip4)
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200194{
195 vxlan_gbp_main_t *vxm = &vxlan_gbp_main;
196 vnet_main_t *vnm = vxm->vnet_main;
197 vnet_interface_main_t *im = &vnm->interface_main;
198 vlib_combined_counter_main_t *rx_counter =
199 im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX;
200 vlib_combined_counter_main_t *drop_counter =
201 im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_DROP;
202 last_tunnel_cache4 last4;
203 last_tunnel_cache6 last6;
204 u32 pkts_decapsulated = 0;
205 u32 thread_index = vlib_get_thread_index ();
206
207 if (is_ip4)
Dave Barachb7b92992018-10-17 10:38:51 -0400208 clib_memset (&last4, 0xff, sizeof last4);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200209 else
Dave Barachb7b92992018-10-17 10:38:51 -0400210 clib_memset (&last6, 0xff, sizeof last6);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200211
212 u32 next_index = node->cached_next_index;
213
214 u32 *from = vlib_frame_vector_args (from_frame);
215 u32 n_left_from = from_frame->n_vectors;
216
217 while (n_left_from > 0)
218 {
219 u32 *to_next, n_left_to_next;
220 vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
221
222 while (n_left_from >= 4 && n_left_to_next >= 2)
223 {
224 /* Prefetch next iteration. */
225 {
226 vlib_buffer_t *p2, *p3;
227
228 p2 = vlib_get_buffer (vm, from[2]);
229 p3 = vlib_get_buffer (vm, from[3]);
230
231 vlib_prefetch_buffer_header (p2, LOAD);
232 vlib_prefetch_buffer_header (p3, LOAD);
233
234 CLIB_PREFETCH (p2->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
235 CLIB_PREFETCH (p3->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
236 }
237
238 u32 bi0 = to_next[0] = from[0];
239 u32 bi1 = to_next[1] = from[1];
240 from += 2;
241 to_next += 2;
242 n_left_to_next -= 2;
243 n_left_from -= 2;
244
245 vlib_buffer_t *b0, *b1;
246 b0 = vlib_get_buffer (vm, bi0);
247 b1 = vlib_get_buffer (vm, bi1);
248
249 /* udp leaves current_data pointing at the vxlan_gbp header */
250 void *cur0 = vlib_buffer_get_current (b0);
251 void *cur1 = vlib_buffer_get_current (b1);
252 vxlan_gbp_header_t *vxlan_gbp0 = cur0;
253 vxlan_gbp_header_t *vxlan_gbp1 = cur1;
254
255 ip4_header_t *ip4_0, *ip4_1;
256 ip6_header_t *ip6_0, *ip6_1;
257 if (is_ip4)
258 {
259 ip4_0 = cur0 - sizeof (udp_header_t) - sizeof (ip4_header_t);
260 ip4_1 = cur1 - sizeof (udp_header_t) - sizeof (ip4_header_t);
261 }
262 else
263 {
264 ip6_0 = cur0 - sizeof (udp_header_t) - sizeof (ip6_header_t);
265 ip6_1 = cur1 - sizeof (udp_header_t) - sizeof (ip6_header_t);
266 }
267
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200268 u32 fi0 = buf_fib_index (b0, is_ip4);
269 u32 fi1 = buf_fib_index (b1, is_ip4);
270
Neale Ranns665581a2019-03-05 06:11:57 -0800271 vxlan_gbp_tunnel_t *t0, *t1;
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200272 if (is_ip4)
273 {
274 t0 =
Neale Ranns665581a2019-03-05 06:11:57 -0800275 vxlan4_gbp_find_tunnel (vxm, &last4, fi0, ip4_0, vxlan_gbp0);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200276 t1 =
Neale Ranns665581a2019-03-05 06:11:57 -0800277 vxlan4_gbp_find_tunnel (vxm, &last4, fi1, ip4_1, vxlan_gbp1);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200278 }
279 else
280 {
281 t0 =
Neale Ranns665581a2019-03-05 06:11:57 -0800282 vxlan6_gbp_find_tunnel (vxm, &last6, fi0, ip6_0, vxlan_gbp0);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200283 t1 =
Neale Ranns665581a2019-03-05 06:11:57 -0800284 vxlan6_gbp_find_tunnel (vxm, &last6, fi1, ip6_1, vxlan_gbp1);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200285 }
286
287 u32 len0 = vlib_buffer_length_in_chain (vm, b0);
288 u32 len1 = vlib_buffer_length_in_chain (vm, b1);
289
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700290 vxlan_gbp_input_next_t next0, next1;
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200291 u8 error0 = 0, error1 = 0;
292 u8 flags0 = vxlan_gbp_get_flags (vxlan_gbp0);
293 u8 flags1 = vxlan_gbp_get_flags (vxlan_gbp1);
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700294 /* Required to make the l2 tag push / pop code work on l2 subifs */
295 /* pop vxlan_gbp */
296 vlib_buffer_advance (b0, sizeof *vxlan_gbp0);
297 vlib_buffer_advance (b1, sizeof *vxlan_gbp1);
298
Paul Vinciguerrabdc0e6b2018-09-22 05:32:50 -0700299 /* Validate VXLAN_GBP tunnel encap-fib index against packet */
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200300 if (PREDICT_FALSE
Neale Ranns665581a2019-03-05 06:11:57 -0800301 (t0 == NULL
302 || flags0 != (VXLAN_GBP_FLAGS_I | VXLAN_GBP_FLAGS_G)))
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200303 {
Neale Ranns665581a2019-03-05 06:11:57 -0800304 if (t0 != NULL
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200305 && flags0 != (VXLAN_GBP_FLAGS_I | VXLAN_GBP_FLAGS_G))
306 {
307 error0 = VXLAN_GBP_ERROR_BAD_FLAGS;
308 vlib_increment_combined_counter
Neale Ranns665581a2019-03-05 06:11:57 -0800309 (drop_counter, thread_index, t0->sw_if_index, 1, len0);
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700310 next0 = VXLAN_GBP_INPUT_NEXT_DROP;
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200311 }
312 else
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700313 {
314 error0 = VXLAN_GBP_ERROR_NO_SUCH_TUNNEL;
315 next0 = VXLAN_GBP_INPUT_NEXT_NO_TUNNEL;
316 }
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200317 b0->error = node->errors[error0];
318 }
319 else
320 {
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700321 next0 = vxlan_gbp_tunnel_get_next (t0, b0);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200322
323 /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */
324 vnet_buffer (b0)->sw_if_index[VLIB_RX] = t0->sw_if_index;
325 vlib_increment_combined_counter
Neale Ranns665581a2019-03-05 06:11:57 -0800326 (rx_counter, thread_index, t0->sw_if_index, 1, len0);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200327 pkts_decapsulated++;
328 }
329
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700330 vnet_buffer2 (b0)->gbp.flags = vxlan_gbp_get_gpflags (vxlan_gbp0);
Neale Ranns879d11c2019-01-21 23:34:18 -0800331 vnet_buffer2 (b0)->gbp.sclass = vxlan_gbp_get_sclass (vxlan_gbp0);
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700332
333
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200334 if (PREDICT_FALSE
335 (t1 == 0 || flags1 != (VXLAN_GBP_FLAGS_I | VXLAN_GBP_FLAGS_G)))
336 {
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200337 if (t1 != 0
338 && flags1 != (VXLAN_GBP_FLAGS_I | VXLAN_GBP_FLAGS_G))
339 {
340 error1 = VXLAN_GBP_ERROR_BAD_FLAGS;
341 vlib_increment_combined_counter
Neale Ranns665581a2019-03-05 06:11:57 -0800342 (drop_counter, thread_index, t1->sw_if_index, 1, len1);
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700343 next1 = VXLAN_GBP_INPUT_NEXT_DROP;
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200344 }
345 else
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700346 {
347 error1 = VXLAN_GBP_ERROR_NO_SUCH_TUNNEL;
348 next1 = VXLAN_GBP_INPUT_NEXT_NO_TUNNEL;
349 }
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200350 b1->error = node->errors[error1];
351 }
352 else
353 {
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700354 next1 = vxlan_gbp_tunnel_get_next (t1, b1);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200355
356 /* Set packet input sw_if_index to unicast VXLAN_GBP tunnel for learning */
357 vnet_buffer (b1)->sw_if_index[VLIB_RX] = t1->sw_if_index;
358 pkts_decapsulated++;
359
360 vlib_increment_combined_counter
Neale Ranns665581a2019-03-05 06:11:57 -0800361 (rx_counter, thread_index, t1->sw_if_index, 1, len1);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200362 }
363
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700364 vnet_buffer2 (b1)->gbp.flags = vxlan_gbp_get_gpflags (vxlan_gbp1);
Neale Ranns879d11c2019-01-21 23:34:18 -0800365 vnet_buffer2 (b1)->gbp.sclass = vxlan_gbp_get_sclass (vxlan_gbp1);
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700366
367 vnet_update_l2_len (b0);
368 vnet_update_l2_len (b1);
369
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200370 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
371 {
372 vxlan_gbp_rx_trace_t *tr =
373 vlib_add_trace (vm, node, b0, sizeof (*tr));
374 tr->next_index = next0;
375 tr->error = error0;
376 tr->tunnel_index = t0 == 0 ? ~0 : t0 - vxm->tunnels;
377 tr->vni = vxlan_gbp_get_vni (vxlan_gbp0);
378 tr->sclass = vxlan_gbp_get_sclass (vxlan_gbp0);
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700379 tr->flags = vxlan_gbp_get_gpflags (vxlan_gbp0);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200380 }
381 if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED))
382 {
383 vxlan_gbp_rx_trace_t *tr =
384 vlib_add_trace (vm, node, b1, sizeof (*tr));
385 tr->next_index = next1;
386 tr->error = error1;
387 tr->tunnel_index = t1 == 0 ? ~0 : t1 - vxm->tunnels;
388 tr->vni = vxlan_gbp_get_vni (vxlan_gbp1);
389 tr->sclass = vxlan_gbp_get_sclass (vxlan_gbp1);
Neale Ranns5ecbbc12018-11-14 08:18:12 -0800390 tr->flags = vxlan_gbp_get_gpflags (vxlan_gbp1);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200391 }
392
393 vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
394 to_next, n_left_to_next,
395 bi0, bi1, next0, next1);
396 }
397
398 while (n_left_from > 0 && n_left_to_next > 0)
399 {
400 u32 bi0 = to_next[0] = from[0];
401 from += 1;
402 to_next += 1;
403 n_left_from -= 1;
404 n_left_to_next -= 1;
405
406 vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
407
408 /* udp leaves current_data pointing at the vxlan_gbp header */
409 void *cur0 = vlib_buffer_get_current (b0);
410 vxlan_gbp_header_t *vxlan_gbp0 = cur0;
411 ip4_header_t *ip4_0;
412 ip6_header_t *ip6_0;
413 if (is_ip4)
414 ip4_0 = cur0 - sizeof (udp_header_t) - sizeof (ip4_header_t);
415 else
416 ip6_0 = cur0 - sizeof (udp_header_t) - sizeof (ip6_header_t);
417
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200418 u32 fi0 = buf_fib_index (b0, is_ip4);
419
Neale Ranns665581a2019-03-05 06:11:57 -0800420 vxlan_gbp_tunnel_t *t0;
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200421 if (is_ip4)
Neale Ranns665581a2019-03-05 06:11:57 -0800422 t0 = vxlan4_gbp_find_tunnel (vxm, &last4, fi0, ip4_0, vxlan_gbp0);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200423 else
Neale Ranns665581a2019-03-05 06:11:57 -0800424 t0 = vxlan6_gbp_find_tunnel (vxm, &last6, fi0, ip6_0, vxlan_gbp0);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200425
426 uword len0 = vlib_buffer_length_in_chain (vm, b0);
427
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700428 vxlan_gbp_input_next_t next0;
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200429 u8 error0 = 0;
430 u8 flags0 = vxlan_gbp_get_flags (vxlan_gbp0);
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700431
432 /* pop (ip, udp, vxlan_gbp) */
433 vlib_buffer_advance (b0, sizeof (*vxlan_gbp0));
Paul Vinciguerrabdc0e6b2018-09-22 05:32:50 -0700434 /* Validate VXLAN_GBP tunnel encap-fib index against packet */
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200435 if (PREDICT_FALSE
Neale Ranns665581a2019-03-05 06:11:57 -0800436 (t0 == NULL
437 || flags0 != (VXLAN_GBP_FLAGS_I | VXLAN_GBP_FLAGS_G)))
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200438 {
Neale Ranns665581a2019-03-05 06:11:57 -0800439 if (t0 != NULL
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200440 && flags0 != (VXLAN_GBP_FLAGS_I | VXLAN_GBP_FLAGS_G))
441 {
442 error0 = VXLAN_GBP_ERROR_BAD_FLAGS;
443 vlib_increment_combined_counter
Neale Ranns665581a2019-03-05 06:11:57 -0800444 (drop_counter, thread_index, t0->sw_if_index, 1, len0);
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700445 next0 = VXLAN_GBP_INPUT_NEXT_DROP;
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200446 }
447 else
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700448 {
449 error0 = VXLAN_GBP_ERROR_NO_SUCH_TUNNEL;
450 next0 = VXLAN_GBP_INPUT_NEXT_NO_TUNNEL;
451 }
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200452 b0->error = node->errors[error0];
453 }
454 else
455 {
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700456 next0 = vxlan_gbp_tunnel_get_next (t0, b0);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200457 /* Set packet input sw_if_index to unicast VXLAN_GBP tunnel for learning */
458 vnet_buffer (b0)->sw_if_index[VLIB_RX] = t0->sw_if_index;
459 pkts_decapsulated++;
460
461 vlib_increment_combined_counter
Neale Ranns665581a2019-03-05 06:11:57 -0800462 (rx_counter, thread_index, t0->sw_if_index, 1, len0);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200463 }
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700464 vnet_buffer2 (b0)->gbp.flags = vxlan_gbp_get_gpflags (vxlan_gbp0);
Neale Ranns879d11c2019-01-21 23:34:18 -0800465 vnet_buffer2 (b0)->gbp.sclass = vxlan_gbp_get_sclass (vxlan_gbp0);
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700466
467 /* Required to make the l2 tag push / pop code work on l2 subifs */
468 vnet_update_l2_len (b0);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200469
470 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
471 {
472 vxlan_gbp_rx_trace_t *tr
473 = vlib_add_trace (vm, node, b0, sizeof (*tr));
474 tr->next_index = next0;
475 tr->error = error0;
476 tr->tunnel_index = t0 == 0 ? ~0 : t0 - vxm->tunnels;
477 tr->vni = vxlan_gbp_get_vni (vxlan_gbp0);
478 tr->sclass = vxlan_gbp_get_sclass (vxlan_gbp0);
Neale Ranns93cc3ee2018-10-10 07:22:51 -0700479 tr->flags = vxlan_gbp_get_gpflags (vxlan_gbp0);
Mohsin Kazmi61b94c62018-08-20 18:32:39 +0200480 }
481 vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
482 to_next, n_left_to_next,
483 bi0, next0);
484 }
485
486 vlib_put_next_frame (vm, node, next_index, n_left_to_next);
487 }
488 /* Do we still need this now that tunnel tx stats is kept? */
489 u32 node_idx =
490 is_ip4 ? vxlan4_gbp_input_node.index : vxlan6_gbp_input_node.index;
491 vlib_node_increment_counter (vm, node_idx, VXLAN_GBP_ERROR_DECAPSULATED,
492 pkts_decapsulated);
493
494 return from_frame->n_vectors;
495}
496
497static uword
498vxlan4_gbp_input (vlib_main_t * vm,
499 vlib_node_runtime_t * node, vlib_frame_t * from_frame)
500{
501 return vxlan_gbp_input (vm, node, from_frame, /* is_ip4 */ 1);
502}
503
504static uword
505vxlan6_gbp_input (vlib_main_t * vm,
506 vlib_node_runtime_t * node, vlib_frame_t * from_frame)
507{
508 return vxlan_gbp_input (vm, node, from_frame, /* is_ip4 */ 0);
509}
510
511static char *vxlan_gbp_error_strings[] = {
512#define vxlan_gbp_error(n,s) s,
513#include <vnet/vxlan-gbp/vxlan_gbp_error.def>
514#undef vxlan_gbp_error
515#undef _
516};
517
518/* *INDENT-OFF* */
519VLIB_REGISTER_NODE (vxlan4_gbp_input_node) =
520{
521 .function = vxlan4_gbp_input,
522 .name = "vxlan4-gbp-input",
523 .vector_size = sizeof (u32),
524 .n_errors = VXLAN_GBP_N_ERROR,
525 .error_strings = vxlan_gbp_error_strings,
526 .n_next_nodes = VXLAN_GBP_INPUT_N_NEXT,
527 .format_trace = format_vxlan_gbp_rx_trace,
528 .next_nodes = {
529#define _(s,n) [VXLAN_GBP_INPUT_NEXT_##s] = n,
530 foreach_vxlan_gbp_input_next
531#undef _
532 },
533};
534VLIB_NODE_FUNCTION_MULTIARCH (vxlan4_gbp_input_node, vxlan4_gbp_input)
535
536VLIB_REGISTER_NODE (vxlan6_gbp_input_node) =
537{
538 .function = vxlan6_gbp_input,
539 .name = "vxlan6-gbp-input",
540 .vector_size = sizeof (u32),
541 .n_errors = VXLAN_GBP_N_ERROR,
542 .error_strings = vxlan_gbp_error_strings,
543 .n_next_nodes = VXLAN_GBP_INPUT_N_NEXT,
544 .next_nodes = {
545#define _(s,n) [VXLAN_GBP_INPUT_NEXT_##s] = n,
546 foreach_vxlan_gbp_input_next
547#undef _
548 },
549 .format_trace = format_vxlan_gbp_rx_trace,
550};
551VLIB_NODE_FUNCTION_MULTIARCH (vxlan6_gbp_input_node, vxlan6_gbp_input)
552/* *INDENT-ON* */
553
554typedef enum
555{
556 IP_VXLAN_GBP_BYPASS_NEXT_DROP,
557 IP_VXLAN_GBP_BYPASS_NEXT_VXLAN_GBP,
558 IP_VXLAN_GBP_BYPASS_N_NEXT,
559} ip_vxan_gbp_bypass_next_t;
560
561always_inline uword
562ip_vxlan_gbp_bypass_inline (vlib_main_t * vm,
563 vlib_node_runtime_t * node,
564 vlib_frame_t * frame, u32 is_ip4)
565{
566 vxlan_gbp_main_t *vxm = &vxlan_gbp_main;
567 u32 *from, *to_next, n_left_from, n_left_to_next, next_index;
568 vlib_node_runtime_t *error_node =
569 vlib_node_get_runtime (vm, ip4_input_node.index);
570 ip4_address_t addr4; /* last IPv4 address matching a local VTEP address */
571 ip6_address_t addr6; /* last IPv6 address matching a local VTEP address */
572
573 from = vlib_frame_vector_args (frame);
574 n_left_from = frame->n_vectors;
575 next_index = node->cached_next_index;
576
577 if (node->flags & VLIB_NODE_FLAG_TRACE)
578 ip4_forward_next_trace (vm, node, frame, VLIB_TX);
579
580 if (is_ip4)
581 addr4.data_u32 = ~0;
582 else
583 ip6_address_set_zero (&addr6);
584
585 while (n_left_from > 0)
586 {
587 vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
588
589 while (n_left_from >= 4 && n_left_to_next >= 2)
590 {
591 vlib_buffer_t *b0, *b1;
592 ip4_header_t *ip40, *ip41;
593 ip6_header_t *ip60, *ip61;
594 udp_header_t *udp0, *udp1;
595 u32 bi0, ip_len0, udp_len0, flags0, next0;
596 u32 bi1, ip_len1, udp_len1, flags1, next1;
597 i32 len_diff0, len_diff1;
598 u8 error0, good_udp0, proto0;
599 u8 error1, good_udp1, proto1;
600
601 /* Prefetch next iteration. */
602 {
603 vlib_buffer_t *p2, *p3;
604
605 p2 = vlib_get_buffer (vm, from[2]);
606 p3 = vlib_get_buffer (vm, from[3]);
607
608 vlib_prefetch_buffer_header (p2, LOAD);
609 vlib_prefetch_buffer_header (p3, LOAD);
610
611 CLIB_PREFETCH (p2->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
612 CLIB_PREFETCH (p3->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
613 }
614
615 bi0 = to_next[0] = from[0];
616 bi1 = to_next[1] = from[1];
617 from += 2;
618 n_left_from -= 2;
619 to_next += 2;
620 n_left_to_next -= 2;
621
622 b0 = vlib_get_buffer (vm, bi0);
623 b1 = vlib_get_buffer (vm, bi1);
624 if (is_ip4)
625 {
626 ip40 = vlib_buffer_get_current (b0);
627 ip41 = vlib_buffer_get_current (b1);
628 }
629 else
630 {
631 ip60 = vlib_buffer_get_current (b0);
632 ip61 = vlib_buffer_get_current (b1);
633 }
634
635 /* Setup packet for next IP feature */
636 vnet_feature_next (&next0, b0);
637 vnet_feature_next (&next1, b1);
638
639 if (is_ip4)
640 {
641 /* Treat IP frag packets as "experimental" protocol for now
642 until support of IP frag reassembly is implemented */
643 proto0 = ip4_is_fragment (ip40) ? 0xfe : ip40->protocol;
644 proto1 = ip4_is_fragment (ip41) ? 0xfe : ip41->protocol;
645 }
646 else
647 {
648 proto0 = ip60->protocol;
649 proto1 = ip61->protocol;
650 }
651
652 /* Process packet 0 */
653 if (proto0 != IP_PROTOCOL_UDP)
654 goto exit0; /* not UDP packet */
655
656 if (is_ip4)
657 udp0 = ip4_next_header (ip40);
658 else
659 udp0 = ip6_next_header (ip60);
660
661 if (udp0->dst_port != clib_host_to_net_u16 (UDP_DST_PORT_vxlan_gbp))
662 goto exit0; /* not VXLAN_GBP packet */
663
664 /* Validate DIP against VTEPs */
665 if (is_ip4)
666 {
667 if (addr4.as_u32 != ip40->dst_address.as_u32)
668 {
669 if (!hash_get (vxm->vtep4, ip40->dst_address.as_u32))
670 goto exit0; /* no local VTEP for VXLAN_GBP packet */
671 addr4 = ip40->dst_address;
672 }
673 }
674 else
675 {
676 if (!ip6_address_is_equal (&addr6, &ip60->dst_address))
677 {
678 if (!hash_get_mem (vxm->vtep6, &ip60->dst_address))
679 goto exit0; /* no local VTEP for VXLAN_GBP packet */
680 addr6 = ip60->dst_address;
681 }
682 }
683
684 flags0 = b0->flags;
685 good_udp0 = (flags0 & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0;
686
687 /* Don't verify UDP checksum for packets with explicit zero checksum. */
688 good_udp0 |= udp0->checksum == 0;
689
690 /* Verify UDP length */
691 if (is_ip4)
692 ip_len0 = clib_net_to_host_u16 (ip40->length);
693 else
694 ip_len0 = clib_net_to_host_u16 (ip60->payload_length);
695 udp_len0 = clib_net_to_host_u16 (udp0->length);
696 len_diff0 = ip_len0 - udp_len0;
697
698 /* Verify UDP checksum */
699 if (PREDICT_FALSE (!good_udp0))
700 {
701 if ((flags0 & VNET_BUFFER_F_L4_CHECKSUM_COMPUTED) == 0)
702 {
703 if (is_ip4)
704 flags0 = ip4_tcp_udp_validate_checksum (vm, b0);
705 else
706 flags0 = ip6_tcp_udp_icmp_validate_checksum (vm, b0);
707 good_udp0 =
708 (flags0 & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0;
709 }
710 }
711
712 if (is_ip4)
713 {
714 error0 = good_udp0 ? 0 : IP4_ERROR_UDP_CHECKSUM;
715 error0 = (len_diff0 >= 0) ? error0 : IP4_ERROR_UDP_LENGTH;
716 }
717 else
718 {
719 error0 = good_udp0 ? 0 : IP6_ERROR_UDP_CHECKSUM;
720 error0 = (len_diff0 >= 0) ? error0 : IP6_ERROR_UDP_LENGTH;
721 }
722
723 next0 = error0 ?
724 IP_VXLAN_GBP_BYPASS_NEXT_DROP :
725 IP_VXLAN_GBP_BYPASS_NEXT_VXLAN_GBP;
726 b0->error = error0 ? error_node->errors[error0] : 0;
727
728 /* vxlan-gbp-input node expect current at VXLAN_GBP header */
729 if (is_ip4)
730 vlib_buffer_advance (b0,
731 sizeof (ip4_header_t) +
732 sizeof (udp_header_t));
733 else
734 vlib_buffer_advance (b0,
735 sizeof (ip6_header_t) +
736 sizeof (udp_header_t));
737
738 exit0:
739 /* Process packet 1 */
740 if (proto1 != IP_PROTOCOL_UDP)
741 goto exit1; /* not UDP packet */
742
743 if (is_ip4)
744 udp1 = ip4_next_header (ip41);
745 else
746 udp1 = ip6_next_header (ip61);
747
748 if (udp1->dst_port != clib_host_to_net_u16 (UDP_DST_PORT_vxlan_gbp))
749 goto exit1; /* not VXLAN_GBP packet */
750
751 /* Validate DIP against VTEPs */
752 if (is_ip4)
753 {
754 if (addr4.as_u32 != ip41->dst_address.as_u32)
755 {
756 if (!hash_get (vxm->vtep4, ip41->dst_address.as_u32))
757 goto exit1; /* no local VTEP for VXLAN_GBP packet */
758 addr4 = ip41->dst_address;
759 }
760 }
761 else
762 {
763 if (!ip6_address_is_equal (&addr6, &ip61->dst_address))
764 {
765 if (!hash_get_mem (vxm->vtep6, &ip61->dst_address))
766 goto exit1; /* no local VTEP for VXLAN_GBP packet */
767 addr6 = ip61->dst_address;
768 }
769 }
770
771 flags1 = b1->flags;
772 good_udp1 = (flags1 & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0;
773
774 /* Don't verify UDP checksum for packets with explicit zero checksum. */
775 good_udp1 |= udp1->checksum == 0;
776
777 /* Verify UDP length */
778 if (is_ip4)
779 ip_len1 = clib_net_to_host_u16 (ip41->length);
780 else
781 ip_len1 = clib_net_to_host_u16 (ip61->payload_length);
782 udp_len1 = clib_net_to_host_u16 (udp1->length);
783 len_diff1 = ip_len1 - udp_len1;
784
785 /* Verify UDP checksum */
786 if (PREDICT_FALSE (!good_udp1))
787 {
788 if ((flags1 & VNET_BUFFER_F_L4_CHECKSUM_COMPUTED) == 0)
789 {
790 if (is_ip4)
791 flags1 = ip4_tcp_udp_validate_checksum (vm, b1);
792 else
793 flags1 = ip6_tcp_udp_icmp_validate_checksum (vm, b1);
794 good_udp1 =
795 (flags1 & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0;
796 }
797 }
798
799 if (is_ip4)
800 {
801 error1 = good_udp1 ? 0 : IP4_ERROR_UDP_CHECKSUM;
802 error1 = (len_diff1 >= 0) ? error1 : IP4_ERROR_UDP_LENGTH;
803 }
804 else
805 {
806 error1 = good_udp1 ? 0 : IP6_ERROR_UDP_CHECKSUM;
807 error1 = (len_diff1 >= 0) ? error1 : IP6_ERROR_UDP_LENGTH;
808 }
809
810 next1 = error1 ?
811 IP_VXLAN_GBP_BYPASS_NEXT_DROP :
812 IP_VXLAN_GBP_BYPASS_NEXT_VXLAN_GBP;
813 b1->error = error1 ? error_node->errors[error1] : 0;
814
815 /* vxlan_gbp-input node expect current at VXLAN_GBP header */
816 if (is_ip4)
817 vlib_buffer_advance (b1,
818 sizeof (ip4_header_t) +
819 sizeof (udp_header_t));
820 else
821 vlib_buffer_advance (b1,
822 sizeof (ip6_header_t) +
823 sizeof (udp_header_t));
824
825 exit1:
826 vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
827 to_next, n_left_to_next,
828 bi0, bi1, next0, next1);
829 }
830
831 while (n_left_from > 0 && n_left_to_next > 0)
832 {
833 vlib_buffer_t *b0;
834 ip4_header_t *ip40;
835 ip6_header_t *ip60;
836 udp_header_t *udp0;
837 u32 bi0, ip_len0, udp_len0, flags0, next0;
838 i32 len_diff0;
839 u8 error0, good_udp0, proto0;
840
841 bi0 = to_next[0] = from[0];
842 from += 1;
843 n_left_from -= 1;
844 to_next += 1;
845 n_left_to_next -= 1;
846
847 b0 = vlib_get_buffer (vm, bi0);
848 if (is_ip4)
849 ip40 = vlib_buffer_get_current (b0);
850 else
851 ip60 = vlib_buffer_get_current (b0);
852
853 /* Setup packet for next IP feature */
854 vnet_feature_next (&next0, b0);
855
856 if (is_ip4)
857 /* Treat IP4 frag packets as "experimental" protocol for now
858 until support of IP frag reassembly is implemented */
859 proto0 = ip4_is_fragment (ip40) ? 0xfe : ip40->protocol;
860 else
861 proto0 = ip60->protocol;
862
863 if (proto0 != IP_PROTOCOL_UDP)
864 goto exit; /* not UDP packet */
865
866 if (is_ip4)
867 udp0 = ip4_next_header (ip40);
868 else
869 udp0 = ip6_next_header (ip60);
870
871 if (udp0->dst_port != clib_host_to_net_u16 (UDP_DST_PORT_vxlan_gbp))
872 goto exit; /* not VXLAN_GBP packet */
873
874 /* Validate DIP against VTEPs */
875 if (is_ip4)
876 {
877 if (addr4.as_u32 != ip40->dst_address.as_u32)
878 {
879 if (!hash_get (vxm->vtep4, ip40->dst_address.as_u32))
880 goto exit; /* no local VTEP for VXLAN_GBP packet */
881 addr4 = ip40->dst_address;
882 }
883 }
884 else
885 {
886 if (!ip6_address_is_equal (&addr6, &ip60->dst_address))
887 {
888 if (!hash_get_mem (vxm->vtep6, &ip60->dst_address))
889 goto exit; /* no local VTEP for VXLAN_GBP packet */
890 addr6 = ip60->dst_address;
891 }
892 }
893
894 flags0 = b0->flags;
895 good_udp0 = (flags0 & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0;
896
897 /* Don't verify UDP checksum for packets with explicit zero checksum. */
898 good_udp0 |= udp0->checksum == 0;
899
900 /* Verify UDP length */
901 if (is_ip4)
902 ip_len0 = clib_net_to_host_u16 (ip40->length);
903 else
904 ip_len0 = clib_net_to_host_u16 (ip60->payload_length);
905 udp_len0 = clib_net_to_host_u16 (udp0->length);
906 len_diff0 = ip_len0 - udp_len0;
907
908 /* Verify UDP checksum */
909 if (PREDICT_FALSE (!good_udp0))
910 {
911 if ((flags0 & VNET_BUFFER_F_L4_CHECKSUM_COMPUTED) == 0)
912 {
913 if (is_ip4)
914 flags0 = ip4_tcp_udp_validate_checksum (vm, b0);
915 else
916 flags0 = ip6_tcp_udp_icmp_validate_checksum (vm, b0);
917 good_udp0 =
918 (flags0 & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0;
919 }
920 }
921
922 if (is_ip4)
923 {
924 error0 = good_udp0 ? 0 : IP4_ERROR_UDP_CHECKSUM;
925 error0 = (len_diff0 >= 0) ? error0 : IP4_ERROR_UDP_LENGTH;
926 }
927 else
928 {
929 error0 = good_udp0 ? 0 : IP6_ERROR_UDP_CHECKSUM;
930 error0 = (len_diff0 >= 0) ? error0 : IP6_ERROR_UDP_LENGTH;
931 }
932
933 next0 = error0 ?
934 IP_VXLAN_GBP_BYPASS_NEXT_DROP :
935 IP_VXLAN_GBP_BYPASS_NEXT_VXLAN_GBP;
936 b0->error = error0 ? error_node->errors[error0] : 0;
937
938 /* vxlan_gbp-input node expect current at VXLAN_GBP header */
939 if (is_ip4)
940 vlib_buffer_advance (b0,
941 sizeof (ip4_header_t) +
942 sizeof (udp_header_t));
943 else
944 vlib_buffer_advance (b0,
945 sizeof (ip6_header_t) +
946 sizeof (udp_header_t));
947
948 exit:
949 vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
950 to_next, n_left_to_next,
951 bi0, next0);
952 }
953
954 vlib_put_next_frame (vm, node, next_index, n_left_to_next);
955 }
956
957 return frame->n_vectors;
958}
959
960static uword
961ip4_vxlan_gbp_bypass (vlib_main_t * vm,
962 vlib_node_runtime_t * node, vlib_frame_t * frame)
963{
964 return ip_vxlan_gbp_bypass_inline (vm, node, frame, /* is_ip4 */ 1);
965}
966
967/* *INDENT-OFF* */
968VLIB_REGISTER_NODE (ip4_vxlan_gbp_bypass_node) =
969{
970 .function = ip4_vxlan_gbp_bypass,
971 .name = "ip4-vxlan-gbp-bypass",
972 .vector_size = sizeof (u32),
973 .n_next_nodes = IP_VXLAN_GBP_BYPASS_N_NEXT,
974 .next_nodes = {
975 [IP_VXLAN_GBP_BYPASS_NEXT_DROP] = "error-drop",
976 [IP_VXLAN_GBP_BYPASS_NEXT_VXLAN_GBP] = "vxlan4-gbp-input",
977 },
978 .format_buffer = format_ip4_header,
979 .format_trace = format_ip4_forward_next_trace,
980};
981
982VLIB_NODE_FUNCTION_MULTIARCH (ip4_vxlan_gbp_bypass_node, ip4_vxlan_gbp_bypass)
983/* *INDENT-ON* */
984
985/* Dummy init function to get us linked in. */
986clib_error_t *
987ip4_vxlan_gbp_bypass_init (vlib_main_t * vm)
988{
989 return 0;
990}
991
992VLIB_INIT_FUNCTION (ip4_vxlan_gbp_bypass_init);
993
994static uword
995ip6_vxlan_gbp_bypass (vlib_main_t * vm,
996 vlib_node_runtime_t * node, vlib_frame_t * frame)
997{
998 return ip_vxlan_gbp_bypass_inline (vm, node, frame, /* is_ip4 */ 0);
999}
1000
1001/* *INDENT-OFF* */
1002VLIB_REGISTER_NODE (ip6_vxlan_gbp_bypass_node) =
1003{
1004 .function = ip6_vxlan_gbp_bypass,
1005 .name = "ip6-vxlan-gbp-bypass",
1006 .vector_size = sizeof (u32),
1007 .n_next_nodes = IP_VXLAN_GBP_BYPASS_N_NEXT,
1008 .next_nodes = {
1009 [IP_VXLAN_GBP_BYPASS_NEXT_DROP] = "error-drop",
1010 [IP_VXLAN_GBP_BYPASS_NEXT_VXLAN_GBP] = "vxlan6-gbp-input",
1011 },
1012 .format_buffer = format_ip6_header,
1013 .format_trace = format_ip6_forward_next_trace,
1014};
1015
1016VLIB_NODE_FUNCTION_MULTIARCH (ip6_vxlan_gbp_bypass_node, ip6_vxlan_gbp_bypass)
1017/* *INDENT-ON* */
1018
1019/* Dummy init function to get us linked in. */
1020clib_error_t *
1021ip6_vxlan_gbp_bypass_init (vlib_main_t * vm)
1022{
1023 return 0;
1024}
1025
1026VLIB_INIT_FUNCTION (ip6_vxlan_gbp_bypass_init);
1027
1028/*
1029 * fd.io coding-style-patch-verification: ON
1030 *
1031 * Local Variables:
1032 * eval: (c-set-style "gnu")
1033 * End:
1034 */