2 * Copyright (c) 2017-2019 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.
16 #include <vnet/udp/udp_encap.h>
17 #include <vnet/udp/udp.h>
19 typedef struct udp4_encap_trace_t_
25 typedef struct udp6_encap_trace_t_
31 extern vlib_combined_counter_main_t udp_encap_counters;
34 format_udp4_encap_trace (u8 * s, va_list * args)
36 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
37 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
38 udp4_encap_trace_t *t;
40 t = va_arg (*args, udp4_encap_trace_t *);
42 s = format (s, "%U\n %U",
43 format_ip4_header, &t->ip, sizeof (t->ip),
44 format_udp_header, &t->udp, sizeof (t->udp));
49 format_udp6_encap_trace (u8 * s, va_list * args)
51 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
52 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
53 udp6_encap_trace_t *t;
55 t = va_arg (*args, udp6_encap_trace_t *);
57 s = format (s, "%U\n %U",
58 format_ip6_header, &t->ip, sizeof (t->ip),
59 format_udp_header, &t->udp, sizeof (t->udp));
64 udp_encap_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
65 vlib_frame_t *frame, ip_address_family_t encap_family,
66 ip_address_family_t payload_family)
68 vlib_combined_counter_main_t *cm = &udp_encap_counters;
69 u32 *from = vlib_frame_vector_args (frame);
70 u32 n_left_from, n_left_to_next, *to_next, next_index;
71 u32 thread_index = vm->thread_index;
73 n_left_from = frame->n_vectors;
74 next_index = node->cached_next_index;
76 while (n_left_from > 0)
78 vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
80 while (n_left_from >= 4 && n_left_to_next >= 2)
82 vlib_buffer_t *b0, *b1;
83 udp_encap_t *ue0, *ue1;
87 /* Prefetch next iteration. */
89 vlib_buffer_t *p2, *p3;
91 p2 = vlib_get_buffer (vm, from[2]);
92 p3 = vlib_get_buffer (vm, from[3]);
94 vlib_prefetch_buffer_header (p2, STORE);
95 vlib_prefetch_buffer_header (p3, STORE);
98 bi0 = to_next[0] = from[0];
99 bi1 = to_next[1] = from[1];
106 b0 = vlib_get_buffer (vm, bi0);
107 b1 = vlib_get_buffer (vm, bi1);
109 uei0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX];
110 uei1 = vnet_buffer (b1)->ip.adj_index[VLIB_TX];
112 vlib_increment_combined_counter (cm, thread_index, uei0, 1,
113 vlib_buffer_length_in_chain (vm,
115 vlib_increment_combined_counter (cm, thread_index, uei1, 1,
116 vlib_buffer_length_in_chain (vm,
119 /* Rewrite packet header and updates lengths. */
120 ue0 = udp_encap_get (uei0);
121 ue1 = udp_encap_get (uei1);
124 if (encap_family == AF_IP6)
127 sizeof (udp_header_t) + sizeof (ip6_header_t);
128 ip_udp_encap_two (vm, b0, b1, (u8 *) &ue0->ue_hdrs,
129 (u8 *) &ue1->ue_hdrs, n_bytes, encap_family,
131 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
133 udp6_encap_trace_t *tr =
134 vlib_add_trace (vm, node, b0, sizeof (*tr));
135 tr->udp = ue0->ue_hdrs.ip6.ue_udp;
136 tr->ip = ue0->ue_hdrs.ip6.ue_ip6;
138 if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED))
140 udp6_encap_trace_t *tr =
141 vlib_add_trace (vm, node, b1, sizeof (*tr));
142 tr->udp = ue1->ue_hdrs.ip6.ue_udp;
143 tr->ip = ue1->ue_hdrs.ip6.ue_ip6;
149 sizeof (udp_header_t) + sizeof (ip4_header_t);
151 ip_udp_encap_two (vm, b0, b1, (u8 *) &ue0->ue_hdrs,
152 (u8 *) &ue1->ue_hdrs, n_bytes, encap_family,
155 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
157 udp4_encap_trace_t *tr =
158 vlib_add_trace (vm, node, b0, sizeof (*tr));
159 tr->udp = ue0->ue_hdrs.ip4.ue_udp;
160 tr->ip = ue0->ue_hdrs.ip4.ue_ip4;
162 if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED))
164 udp4_encap_trace_t *tr =
165 vlib_add_trace (vm, node, b1, sizeof (*tr));
166 tr->udp = ue1->ue_hdrs.ip4.ue_udp;
167 tr->ip = ue1->ue_hdrs.ip4.ue_ip4;
171 next0 = ue0->ue_dpo.dpoi_next_node;
172 next1 = ue1->ue_dpo.dpoi_next_node;
173 vnet_buffer (b0)->ip.adj_index[VLIB_TX] = ue0->ue_dpo.dpoi_index;
174 vnet_buffer (b1)->ip.adj_index[VLIB_TX] = ue1->ue_dpo.dpoi_index;
176 vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
177 to_next, n_left_to_next,
178 bi0, bi1, next0, next1);
181 while (n_left_from > 0 && n_left_to_next > 0)
183 u32 bi0, next0, uei0;
187 bi0 = to_next[0] = from[0];
194 b0 = vlib_get_buffer (vm, bi0);
196 uei0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX];
198 /* Rewrite packet header and updates lengths. */
199 ue0 = udp_encap_get (uei0);
201 vlib_increment_combined_counter (cm, thread_index, uei0, 1,
202 vlib_buffer_length_in_chain (vm,
206 if (encap_family == AF_IP6)
209 sizeof (udp_header_t) + sizeof (ip6_header_t);
210 ip_udp_encap_one (vm, b0, (u8 *) &ue0->ue_hdrs.ip6, n_bytes,
211 encap_family, payload_family);
213 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
215 udp6_encap_trace_t *tr =
216 vlib_add_trace (vm, node, b0, sizeof (*tr));
217 tr->udp = ue0->ue_hdrs.ip6.ue_udp;
218 tr->ip = ue0->ue_hdrs.ip6.ue_ip6;
224 sizeof (udp_header_t) + sizeof (ip4_header_t);
226 ip_udp_encap_one (vm, b0, (u8 *) &ue0->ue_hdrs.ip4, n_bytes,
227 encap_family, payload_family);
229 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
231 udp4_encap_trace_t *tr =
232 vlib_add_trace (vm, node, b0, sizeof (*tr));
233 tr->udp = ue0->ue_hdrs.ip4.ue_udp;
234 tr->ip = ue0->ue_hdrs.ip4.ue_ip4;
238 next0 = ue0->ue_dpo.dpoi_next_node;
239 vnet_buffer (b0)->ip.adj_index[VLIB_TX] = ue0->ue_dpo.dpoi_index;
241 vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
242 to_next, n_left_to_next,
246 vlib_put_next_frame (vm, node, next_index, n_left_to_next);
249 return frame->n_vectors;
252 VLIB_NODE_FN (udp4o4_encap_node)
253 (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
255 return udp_encap_inline (vm, node, frame, AF_IP4, AF_IP4);
258 VLIB_NODE_FN (udp6o4_encap_node)
259 (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
261 return udp_encap_inline (vm, node, frame, AF_IP4, AF_IP6);
264 VLIB_NODE_FN (udp4_encap_node)
265 (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
267 return udp_encap_inline (vm, node, frame, AF_IP4, N_AF);
270 VLIB_NODE_FN (udp6o6_encap_node)
271 (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
273 return udp_encap_inline (vm, node, frame, AF_IP6, AF_IP6);
276 VLIB_NODE_FN (udp4o6_encap_node)
277 (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
279 return udp_encap_inline (vm, node, frame, AF_IP6, AF_IP4);
282 VLIB_NODE_FN (udp6_encap_node)
283 (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
285 return udp_encap_inline (vm, node, frame, AF_IP6, N_AF);
289 VLIB_REGISTER_NODE (udp4o4_encap_node) = {
290 .name = "udp4o4-encap",
291 .vector_size = sizeof (u32),
292 .format_trace = format_udp4_encap_trace,
296 VLIB_REGISTER_NODE (udp6o4_encap_node) = {
297 .name = "udp6o4-encap",
298 .vector_size = sizeof (u32),
299 .format_trace = format_udp6_encap_trace,
301 .sibling_of = "udp4o4-encap",
304 VLIB_REGISTER_NODE (udp4_encap_node) = {
305 .name = "udp4-encap",
306 .vector_size = sizeof (u32),
307 .format_trace = format_udp4_encap_trace,
309 .sibling_of = "udp4o4-encap",
312 VLIB_REGISTER_NODE (udp6o6_encap_node) = {
313 .name = "udp6o6-encap",
314 .vector_size = sizeof (u32),
315 .format_trace = format_udp6_encap_trace,
319 VLIB_REGISTER_NODE (udp4o6_encap_node) = {
320 .name = "udp4o6-encap",
321 .vector_size = sizeof (u32),
322 .format_trace = format_udp4_encap_trace,
324 .sibling_of = "udp6o6-encap",
327 VLIB_REGISTER_NODE (udp6_encap_node) = {
328 .name = "udp6-encap",
329 .vector_size = sizeof (u32),
330 .format_trace = format_udp6_encap_trace,
332 .sibling_of = "udp6o6-encap",
338 * fd.io coding-style-patch-verification: ON
341 * eval: (c-set-style "gnu")