blob: 7fceab09b3018d15ba46ce979dee389cd96a13b3 [file] [log] [blame]
Dave Barach68b0fb02017-02-28 15:15:56 -05001/*
Florin Corasc5df8c72019-04-08 07:42:30 -07002 * Copyright (c) 2016-2019 Cisco and/or its affiliates.
Dave Barach68b0fb02017-02-28 15:15:56 -05003 * 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/** @file
17 udp state machine, etc.
18*/
19
20#include <vnet/udp/udp.h>
21#include <vnet/session/session.h>
22#include <vnet/dpo/load_balance.h>
23#include <vnet/fib/ip4_fib.h>
24
Filip Tehlar2c49ffe2019-03-06 07:16:08 -080025udp_main_t udp_main;
26
Florin Coras3cbc04b2017-10-02 00:18:51 -070027udp_connection_t *
28udp_connection_alloc (u32 thread_index)
29{
30 udp_main_t *um = &udp_main;
31 udp_connection_t *uc;
32 u32 will_expand = 0;
33 pool_get_aligned_will_expand (um->connections[thread_index], will_expand,
34 CLIB_CACHE_LINE_BYTES);
35
36 if (PREDICT_FALSE (will_expand))
37 {
38 clib_spinlock_lock_if_init (&udp_main.peekers_write_locks
39 [thread_index]);
40 pool_get_aligned (udp_main.connections[thread_index], uc,
41 CLIB_CACHE_LINE_BYTES);
42 clib_spinlock_unlock_if_init (&udp_main.peekers_write_locks
43 [thread_index]);
44 }
45 else
46 {
47 pool_get_aligned (um->connections[thread_index], uc,
48 CLIB_CACHE_LINE_BYTES);
49 }
Dave Barachb7b92992018-10-17 10:38:51 -040050 clib_memset (uc, 0, sizeof (*uc));
Florin Coras3cbc04b2017-10-02 00:18:51 -070051 uc->c_c_index = uc - um->connections[thread_index];
52 uc->c_thread_index = thread_index;
53 uc->c_proto = TRANSPORT_PROTO_UDP;
Florin Coras7fb0fe12018-04-09 09:24:52 -070054 clib_spinlock_init (&uc->rx_lock);
Florin Coras3cbc04b2017-10-02 00:18:51 -070055 return uc;
56}
57
58void
59udp_connection_free (udp_connection_t * uc)
60{
Benoît Ganned4aeb842019-07-18 18:38:42 +020061 u32 thread_index = uc->c_thread_index;
Florin Coras3cbc04b2017-10-02 00:18:51 -070062 if (CLIB_DEBUG)
Dave Barachb7b92992018-10-17 10:38:51 -040063 clib_memset (uc, 0xFA, sizeof (*uc));
Benoît Ganned4aeb842019-07-18 18:38:42 +020064 pool_put (udp_main.connections[thread_index], uc);
Florin Coras3cbc04b2017-10-02 00:18:51 -070065}
Dave Barach68b0fb02017-02-28 15:15:56 -050066
Florin Corasc7542392019-07-22 08:08:43 -070067void
68udp_connection_delete (udp_connection_t * uc)
69{
70 if ((uc->flags & UDP_CONN_F_OWNS_PORT)
71 || !(uc->flags & UDP_CONN_F_CONNECTED))
72 udp_unregister_dst_port (vlib_get_main (),
73 clib_net_to_host_u16 (uc->c_lcl_port),
74 uc->c_is_ip4);
75 session_transport_delete_notify (&uc->connection);
76 udp_connection_free (uc);
77}
78
Dave Barach68b0fb02017-02-28 15:15:56 -050079u32
Florin Coras3cbc04b2017-10-02 00:18:51 -070080udp_session_bind (u32 session_index, transport_endpoint_t * lcl)
Dave Barach68b0fb02017-02-28 15:15:56 -050081{
Florin Coras3cbc04b2017-10-02 00:18:51 -070082 udp_main_t *um = vnet_get_udp_main ();
83 vlib_main_t *vm = vlib_get_main ();
Dave Barach68b0fb02017-02-28 15:15:56 -050084 udp_connection_t *listener;
Florin Coras3cbc04b2017-10-02 00:18:51 -070085 u32 node_index;
86 void *iface_ip;
87 udp_dst_port_info_t *pi;
Dave Barach68b0fb02017-02-28 15:15:56 -050088
Florin Coras3cbc04b2017-10-02 00:18:51 -070089 pi = udp_get_dst_port_info (um, lcl->port, lcl->is_ip4);
90 if (pi)
91 return -1;
92
93 pool_get (um->listener_pool, listener);
Dave Barachb7b92992018-10-17 10:38:51 -040094 clib_memset (listener, 0, sizeof (udp_connection_t));
Florin Coras3cbc04b2017-10-02 00:18:51 -070095
Florin Coras0e495682017-09-19 22:27:18 -070096 listener->c_lcl_port = lcl->port;
Florin Coras3cbc04b2017-10-02 00:18:51 -070097 listener->c_c_index = listener - um->listener_pool;
98
99 /* If we are provided a sw_if_index, bind using one of its ips */
100 if (ip_is_zero (&lcl->ip, 1) && lcl->sw_if_index != ENDPOINT_INVALID_INDEX)
101 {
102 if ((iface_ip = ip_interface_get_first_ip (lcl->sw_if_index,
103 lcl->is_ip4)))
104 ip_set (&lcl->ip, iface_ip, lcl->is_ip4);
105 }
106 ip_copy (&listener->c_lcl_ip, &lcl->ip, lcl->is_ip4);
107 listener->c_is_ip4 = lcl->is_ip4;
108 listener->c_proto = TRANSPORT_PROTO_UDP;
109 listener->c_s_index = session_index;
110 listener->c_fib_index = lcl->fib_index;
Florin Corasc7542392019-07-22 08:08:43 -0700111 listener->flags |= UDP_CONN_F_OWNS_PORT;
Florin Coras7fb0fe12018-04-09 09:24:52 -0700112 clib_spinlock_init (&listener->rx_lock);
Florin Coras3cbc04b2017-10-02 00:18:51 -0700113
114 node_index = lcl->is_ip4 ? udp4_input_node.index : udp6_input_node.index;
115 udp_register_dst_port (vm, clib_net_to_host_u16 (lcl->port), node_index,
Florin Corasff2fad12020-01-15 02:32:07 +0000116 lcl->is_ip4);
Florin Coras3cbc04b2017-10-02 00:18:51 -0700117 return listener->c_c_index;
Dave Barach68b0fb02017-02-28 15:15:56 -0500118}
119
120u32
Florin Coras3cbc04b2017-10-02 00:18:51 -0700121udp_session_unbind (u32 listener_index)
Dave Barach68b0fb02017-02-28 15:15:56 -0500122{
Florin Corase69f4952017-03-07 10:06:24 -0800123 vlib_main_t *vm = vlib_get_main ();
Florin Coras3cbc04b2017-10-02 00:18:51 -0700124
Dave Barach68b0fb02017-02-28 15:15:56 -0500125 udp_connection_t *listener;
126 listener = udp_listener_get (listener_index);
Florin Coras3cbc04b2017-10-02 00:18:51 -0700127 udp_unregister_dst_port (vm, clib_net_to_host_u16 (listener->c_lcl_port),
128 listener->c_is_ip4);
Dave Barach68b0fb02017-02-28 15:15:56 -0500129 return 0;
130}
131
132transport_connection_t *
133udp_session_get_listener (u32 listener_index)
134{
135 udp_connection_t *us;
136
137 us = udp_listener_get (listener_index);
138 return &us->connection;
139}
140
141u32
Florin Coras3cbc04b2017-10-02 00:18:51 -0700142udp_push_header (transport_connection_t * tc, vlib_buffer_t * b)
Dave Barach68b0fb02017-02-28 15:15:56 -0500143{
Florin Coras3cbc04b2017-10-02 00:18:51 -0700144 udp_connection_t *uc;
145 vlib_main_t *vm = vlib_get_main ();
Dave Barach68b0fb02017-02-28 15:15:56 -0500146
Florin Coras3cbc04b2017-10-02 00:18:51 -0700147 uc = udp_get_connection_from_transport (tc);
Dave Barach68b0fb02017-02-28 15:15:56 -0500148
Florin Coras3cbc04b2017-10-02 00:18:51 -0700149 vlib_buffer_push_udp (b, uc->c_lcl_port, uc->c_rmt_port, 1);
150 if (tc->is_ip4)
151 vlib_buffer_push_ip4 (vm, b, &uc->c_lcl_ip4, &uc->c_rmt_ip4,
152 IP_PROTOCOL_UDP, 1);
Dave Barach68b0fb02017-02-28 15:15:56 -0500153 else
154 {
Florin Coras3cbc04b2017-10-02 00:18:51 -0700155 ip6_header_t *ih;
156 ih = vlib_buffer_push_ip6 (vm, b, &uc->c_lcl_ip6, &uc->c_rmt_ip6,
157 IP_PROTOCOL_UDP);
158 vnet_buffer (b)->l3_hdr_offset = (u8 *) ih - b->data;
Dave Barach68b0fb02017-02-28 15:15:56 -0500159 }
Florin Coras3cbc04b2017-10-02 00:18:51 -0700160 vnet_buffer (b)->sw_if_index[VLIB_RX] = 0;
Florin Coras7fb0fe12018-04-09 09:24:52 -0700161 vnet_buffer (b)->sw_if_index[VLIB_TX] = uc->c_fib_index;
Florin Coras3cbc04b2017-10-02 00:18:51 -0700162 b->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
163
Florin Corasc7542392019-07-22 08:08:43 -0700164 if (PREDICT_FALSE (uc->flags & UDP_CONN_F_CLOSING))
165 {
166 if (!transport_max_tx_dequeue (&uc->connection))
167 udp_connection_delete (uc);
168 }
169
Florin Coras3cbc04b2017-10-02 00:18:51 -0700170 return 0;
Dave Barach68b0fb02017-02-28 15:15:56 -0500171}
172
173transport_connection_t *
Florin Coras3cbc04b2017-10-02 00:18:51 -0700174udp_session_get (u32 connection_index, u32 thread_index)
Dave Barach68b0fb02017-02-28 15:15:56 -0500175{
Florin Coras3cbc04b2017-10-02 00:18:51 -0700176 udp_connection_t *uc;
177 uc = udp_connection_get (connection_index, thread_index);
178 if (uc)
179 return &uc->connection;
180 return 0;
Dave Barach68b0fb02017-02-28 15:15:56 -0500181}
182
183void
Florin Coras3cbc04b2017-10-02 00:18:51 -0700184udp_session_close (u32 connection_index, u32 thread_index)
Dave Barach68b0fb02017-02-28 15:15:56 -0500185{
Florin Coras3cbc04b2017-10-02 00:18:51 -0700186 udp_connection_t *uc;
Florin Corasc7542392019-07-22 08:08:43 -0700187
Florin Coras3cbc04b2017-10-02 00:18:51 -0700188 uc = udp_connection_get (connection_index, thread_index);
Florin Corasc7542392019-07-22 08:08:43 -0700189 if (!uc)
190 return;
191
192 if (!transport_max_tx_dequeue (&uc->connection))
193 udp_connection_delete (uc);
194 else
195 uc->flags |= UDP_CONN_F_CLOSING;
Florin Coras3cbc04b2017-10-02 00:18:51 -0700196}
197
198void
199udp_session_cleanup (u32 connection_index, u32 thread_index)
200{
201 udp_connection_t *uc;
202 uc = udp_connection_get (connection_index, thread_index);
203 if (uc)
204 udp_connection_free (uc);
Dave Barach68b0fb02017-02-28 15:15:56 -0500205}
206
207u8 *
Florin Coras3cbc04b2017-10-02 00:18:51 -0700208format_udp_connection_id (u8 * s, va_list * args)
209{
210 udp_connection_t *uc = va_arg (*args, udp_connection_t *);
211 if (!uc)
212 return s;
213 if (uc->c_is_ip4)
214 s = format (s, "[#%d][%s] %U:%d->%U:%d", uc->c_thread_index, "U",
215 format_ip4_address, &uc->c_lcl_ip4,
216 clib_net_to_host_u16 (uc->c_lcl_port), format_ip4_address,
217 &uc->c_rmt_ip4, clib_net_to_host_u16 (uc->c_rmt_port));
218 else
219 s = format (s, "[#%d][%s] %U:%d->%U:%d", uc->c_thread_index, "U",
220 format_ip6_address, &uc->c_lcl_ip6,
221 clib_net_to_host_u16 (uc->c_lcl_port), format_ip6_address,
222 &uc->c_rmt_ip6, clib_net_to_host_u16 (uc->c_rmt_port));
223 return s;
224}
225
226u8 *
227format_udp_connection (u8 * s, va_list * args)
228{
229 udp_connection_t *uc = va_arg (*args, udp_connection_t *);
230 u32 verbose = va_arg (*args, u32);
231 if (!uc)
232 return s;
233 s = format (s, "%-50U", format_udp_connection_id, uc);
234 if (verbose)
235 {
236 if (verbose == 1)
Aloys Augustin95dd1fe2019-07-12 17:11:04 +0200237 s = format (s, "%-15s", "-");
Florin Coras3cbc04b2017-10-02 00:18:51 -0700238 else
239 s = format (s, "\n");
240 }
241 return s;
242}
243
244u8 *
245format_udp_session (u8 * s, va_list * args)
Dave Barach68b0fb02017-02-28 15:15:56 -0500246{
247 u32 uci = va_arg (*args, u32);
248 u32 thread_index = va_arg (*args, u32);
Florin Coras3cbc04b2017-10-02 00:18:51 -0700249 u32 verbose = va_arg (*args, u32);
250 udp_connection_t *uc;
Dave Barach68b0fb02017-02-28 15:15:56 -0500251
Florin Coras3cbc04b2017-10-02 00:18:51 -0700252 uc = udp_connection_get (uci, thread_index);
253 return format (s, "%U", format_udp_connection, uc, verbose);
Dave Barach68b0fb02017-02-28 15:15:56 -0500254}
255
256u8 *
Florin Coras3cbc04b2017-10-02 00:18:51 -0700257format_udp_half_open_session (u8 * s, va_list * args)
Dave Barach68b0fb02017-02-28 15:15:56 -0500258{
Dave Wallace3df56822019-05-22 18:56:57 -0400259 u32 __clib_unused tci = va_arg (*args, u32);
Aloys Augustina0abbff2019-07-12 12:16:16 +0200260 u32 __clib_unused thread_index = va_arg (*args, u32);
Florin Coras3cbc04b2017-10-02 00:18:51 -0700261 clib_warning ("BUG");
262 return 0;
Dave Barach68b0fb02017-02-28 15:15:56 -0500263}
264
265u8 *
Florin Coras3cbc04b2017-10-02 00:18:51 -0700266format_udp_listener_session (u8 * s, va_list * args)
Dave Barach68b0fb02017-02-28 15:15:56 -0500267{
268 u32 tci = va_arg (*args, u32);
Aloys Augustina0abbff2019-07-12 12:16:16 +0200269 u32 __clib_unused thread_index = va_arg (*args, u32);
Aloys Augustin95dd1fe2019-07-12 17:11:04 +0200270 u32 verbose = va_arg (*args, u32);
Florin Coras3cbc04b2017-10-02 00:18:51 -0700271 udp_connection_t *uc = udp_listener_get (tci);
Aloys Augustin95dd1fe2019-07-12 17:11:04 +0200272 return format (s, "%U", format_udp_connection, uc, verbose);
Dave Barach68b0fb02017-02-28 15:15:56 -0500273}
274
275u16
Florin Coras3cbc04b2017-10-02 00:18:51 -0700276udp_send_mss (transport_connection_t * t)
Dave Barach68b0fb02017-02-28 15:15:56 -0500277{
278 /* TODO figure out MTU of output interface */
Florin Coras3cbc04b2017-10-02 00:18:51 -0700279 return 1460;
Dave Barach68b0fb02017-02-28 15:15:56 -0500280}
281
282u32
Florin Coras3cbc04b2017-10-02 00:18:51 -0700283udp_send_space (transport_connection_t * t)
Dave Barach68b0fb02017-02-28 15:15:56 -0500284{
285 /* No constraint on TX window */
286 return ~0;
287}
288
289int
Florin Coras5665ced2018-10-25 18:03:45 -0700290udp_open_connection (transport_endpoint_cfg_t * rmt)
Dave Barach68b0fb02017-02-28 15:15:56 -0500291{
Florin Coras3cbc04b2017-10-02 00:18:51 -0700292 udp_main_t *um = vnet_get_udp_main ();
293 vlib_main_t *vm = vlib_get_main ();
Damjan Marion067cd622018-07-11 12:47:43 +0200294 u32 thread_index = vm->thread_index;
Florin Coras3cbc04b2017-10-02 00:18:51 -0700295 udp_connection_t *uc;
296 ip46_address_t lcl_addr;
297 u32 node_index;
298 u16 lcl_port;
299
300 if (transport_alloc_local_endpoint (TRANSPORT_PROTO_UDP, rmt, &lcl_addr,
301 &lcl_port))
302 return -1;
303
304 while (udp_get_dst_port_info (um, lcl_port, rmt->is_ip4))
305 {
306 lcl_port = transport_alloc_local_port (TRANSPORT_PROTO_UDP, &lcl_addr);
307 if (lcl_port < 1)
308 {
309 clib_warning ("Failed to allocate src port");
310 return -1;
311 }
312 }
313
314 node_index = rmt->is_ip4 ? udp4_input_node.index : udp6_input_node.index;
315 udp_register_dst_port (vm, lcl_port, node_index, 1 /* is_ipv4 */ );
316
Florin Coras40903ac2018-06-10 14:41:23 -0700317 /* We don't poll main thread if we have workers */
318 if (vlib_num_workers ())
319 thread_index = 1;
320
Florin Coras3cbc04b2017-10-02 00:18:51 -0700321 uc = udp_connection_alloc (thread_index);
322 ip_copy (&uc->c_rmt_ip, &rmt->ip, rmt->is_ip4);
323 ip_copy (&uc->c_lcl_ip, &lcl_addr, rmt->is_ip4);
324 uc->c_rmt_port = rmt->port;
325 uc->c_lcl_port = clib_host_to_net_u16 (lcl_port);
326 uc->c_is_ip4 = rmt->is_ip4;
327 uc->c_proto = TRANSPORT_PROTO_UDP;
328 uc->c_fib_index = rmt->fib_index;
Florin Corasc7542392019-07-22 08:08:43 -0700329 uc->flags |= UDP_CONN_F_OWNS_PORT;
Florin Coras3cbc04b2017-10-02 00:18:51 -0700330
331 return uc->c_c_index;
332}
333
334transport_connection_t *
Florin Coras40903ac2018-06-10 14:41:23 -0700335udp_session_get_half_open (u32 conn_index)
Florin Coras3cbc04b2017-10-02 00:18:51 -0700336{
337 udp_connection_t *uc;
Florin Coras40903ac2018-06-10 14:41:23 -0700338 u32 thread_index;
339
340 /* We don't poll main thread if we have workers */
341 thread_index = vlib_num_workers ()? 1 : 0;
342 uc = udp_connection_get (conn_index, thread_index);
Nathan Skrzypczake971bc92019-06-19 13:42:37 +0200343 if (!uc)
344 return 0;
Florin Coras3cbc04b2017-10-02 00:18:51 -0700345 return &uc->connection;
Dave Barach68b0fb02017-02-28 15:15:56 -0500346}
347
348/* *INDENT-OFF* */
Nathan Skrzypczake971bc92019-06-19 13:42:37 +0200349static const transport_proto_vft_t udp_proto = {
Florin Coras1ee78302019-02-05 15:51:15 -0800350 .start_listen = udp_session_bind,
351 .connect = udp_open_connection,
352 .stop_listen = udp_session_unbind,
Dave Barach68b0fb02017-02-28 15:15:56 -0500353 .push_header = udp_push_header,
354 .get_connection = udp_session_get,
355 .get_listener = udp_session_get_listener,
Florin Coras40903ac2018-06-10 14:41:23 -0700356 .get_half_open = udp_session_get_half_open,
Dave Barach68b0fb02017-02-28 15:15:56 -0500357 .close = udp_session_close,
Florin Coras3cbc04b2017-10-02 00:18:51 -0700358 .cleanup = udp_session_cleanup,
359 .send_mss = udp_send_mss,
360 .send_space = udp_send_space,
361 .format_connection = format_udp_session,
362 .format_half_open = format_udp_half_open_session,
Florin Coras371ca502018-02-21 12:07:41 -0800363 .format_listener = format_udp_listener_session,
Nathan Skrzypczake971bc92019-06-19 13:42:37 +0200364 .transport_options = {
365 .tx_type = TRANSPORT_TX_DGRAM,
366 .service_type = TRANSPORT_SERVICE_CL,
367 },
Florin Coras7fb0fe12018-04-09 09:24:52 -0700368};
369/* *INDENT-ON* */
370
371
372int
Florin Coras5665ced2018-10-25 18:03:45 -0700373udpc_connection_open (transport_endpoint_cfg_t * rmt)
Florin Coras7fb0fe12018-04-09 09:24:52 -0700374{
375 udp_connection_t *uc;
Aloys Augustin8e584992019-04-24 13:21:43 +0200376 /* Reproduce the logic of udp_open_connection to find the correct thread */
377 u32 thread_index = vlib_num_workers ()? 1 : vlib_get_main ()->thread_index;
Florin Coras7fb0fe12018-04-09 09:24:52 -0700378 u32 uc_index;
379 uc_index = udp_open_connection (rmt);
Nathan Skrzypczak50f4a412019-07-04 14:20:17 +0200380 if (uc_index == (u32) ~ 0)
381 return -1;
Aloys Augustin8e584992019-04-24 13:21:43 +0200382 uc = udp_connection_get (uc_index, thread_index);
Florin Corasc7542392019-07-22 08:08:43 -0700383 uc->flags |= UDP_CONN_F_CONNECTED;
Florin Coras7fb0fe12018-04-09 09:24:52 -0700384 return uc_index;
385}
386
387u32
388udpc_connection_listen (u32 session_index, transport_endpoint_t * lcl)
389{
390 udp_connection_t *listener;
Nathan Skrzypczak50f4a412019-07-04 14:20:17 +0200391 u32 li_index;
392 li_index = udp_session_bind (session_index, lcl);
393 if (li_index == (u32) ~ 0)
394 return -1;
395 listener = udp_listener_get (li_index);
Florin Corasc7542392019-07-22 08:08:43 -0700396 listener->flags |= UDP_CONN_F_CONNECTED;
Florin Coras95cd8642019-12-30 21:53:19 -0800397 /* Fake udp listener, i.e., make sure session layer adds a udp instead of
398 * udpc listener to the lookup table */
399 ((session_endpoint_cfg_t *) lcl)->transport_proto = TRANSPORT_PROTO_UDP;
Nathan Skrzypczak50f4a412019-07-04 14:20:17 +0200400 return li_index;
Florin Coras7fb0fe12018-04-09 09:24:52 -0700401}
402
403/* *INDENT-OFF* */
Nathan Skrzypczake971bc92019-06-19 13:42:37 +0200404static const transport_proto_vft_t udpc_proto = {
Florin Coras1ee78302019-02-05 15:51:15 -0800405 .start_listen = udpc_connection_listen,
406 .stop_listen = udp_session_unbind,
407 .connect = udpc_connection_open,
Florin Coras7fb0fe12018-04-09 09:24:52 -0700408 .push_header = udp_push_header,
409 .get_connection = udp_session_get,
410 .get_listener = udp_session_get_listener,
Florin Coras40903ac2018-06-10 14:41:23 -0700411 .get_half_open = udp_session_get_half_open,
Florin Coras7fb0fe12018-04-09 09:24:52 -0700412 .close = udp_session_close,
413 .cleanup = udp_session_cleanup,
414 .send_mss = udp_send_mss,
415 .send_space = udp_send_space,
416 .format_connection = format_udp_session,
417 .format_half_open = format_udp_half_open_session,
418 .format_listener = format_udp_listener_session,
Nathan Skrzypczake971bc92019-06-19 13:42:37 +0200419 .transport_options = {
420 .tx_type = TRANSPORT_TX_DGRAM,
421 .service_type = TRANSPORT_SERVICE_VC,
Nathan Skrzypczaka26349d2019-06-26 13:53:08 +0200422 .half_open_has_fifos = 1
Nathan Skrzypczake971bc92019-06-19 13:42:37 +0200423 },
Dave Barach68b0fb02017-02-28 15:15:56 -0500424};
425/* *INDENT-ON* */
426
427static clib_error_t *
428udp_init (vlib_main_t * vm)
429{
Florin Coras3cbc04b2017-10-02 00:18:51 -0700430 udp_main_t *um = vnet_get_udp_main ();
Dave Barach68b0fb02017-02-28 15:15:56 -0500431 ip_main_t *im = &ip_main;
432 vlib_thread_main_t *tm = vlib_get_thread_main ();
433 u32 num_threads;
Dave Barach68b0fb02017-02-28 15:15:56 -0500434 ip_protocol_info_t *pi;
Florin Coras29ca16f2017-11-02 18:14:17 -0400435 int i;
Dave Barach68b0fb02017-02-28 15:15:56 -0500436
Dave Barach68b0fb02017-02-28 15:15:56 -0500437 /*
438 * Registrations
439 */
440
441 /* IP registration */
442 pi = ip_get_protocol_info (im, IP_PROTOCOL_UDP);
443 if (pi == 0)
444 return clib_error_return (0, "UDP protocol info AWOL");
445 pi->format_header = format_udp_header;
446 pi->unformat_pg_edit = unformat_pg_udp_header;
447
Dave Barach68b0fb02017-02-28 15:15:56 -0500448 /* Register as transport with URI */
Florin Coras561af9b2017-12-09 10:19:43 -0800449 transport_register_protocol (TRANSPORT_PROTO_UDP, &udp_proto,
450 FIB_PROTOCOL_IP4, ip4_lookup_node.index);
451 transport_register_protocol (TRANSPORT_PROTO_UDP, &udp_proto,
452 FIB_PROTOCOL_IP6, ip6_lookup_node.index);
Florin Coras7fb0fe12018-04-09 09:24:52 -0700453 transport_register_protocol (TRANSPORT_PROTO_UDPC, &udpc_proto,
454 FIB_PROTOCOL_IP4, ip4_lookup_node.index);
455 transport_register_protocol (TRANSPORT_PROTO_UDPC, &udpc_proto,
456 FIB_PROTOCOL_IP6, ip6_lookup_node.index);
Dave Barach68b0fb02017-02-28 15:15:56 -0500457
458 /*
459 * Initialize data structures
460 */
461
462 num_threads = 1 /* main thread */ + tm->n_threads;
Florin Coras3cbc04b2017-10-02 00:18:51 -0700463 vec_validate (um->connections, num_threads - 1);
464 vec_validate (um->connection_peekers, num_threads - 1);
465 vec_validate (um->peekers_readers_locks, num_threads - 1);
466 vec_validate (um->peekers_write_locks, num_threads - 1);
Florin Coras29ca16f2017-11-02 18:14:17 -0400467
468 if (num_threads > 1)
469 for (i = 0; i < num_threads; i++)
470 {
471 clib_spinlock_init (&um->peekers_readers_locks[i]);
472 clib_spinlock_init (&um->peekers_write_locks[i]);
473 }
Dave Barachf8d50682019-05-14 18:01:44 -0400474 return 0;
Dave Barach68b0fb02017-02-28 15:15:56 -0500475}
476
Dave Barachf8d50682019-05-14 18:01:44 -0400477/* *INDENT-OFF* */
478VLIB_INIT_FUNCTION (udp_init) =
479{
480 .runs_after = VLIB_INITS("ip_main_init", "ip4_lookup_init",
481 "ip6_lookup_init"),
482};
483/* *INDENT-ON* */
484
Dave Barach68b0fb02017-02-28 15:15:56 -0500485
Pavel Kotuceke88865d2018-11-28 07:42:11 +0100486static clib_error_t *
487show_udp_punt_fn (vlib_main_t * vm, unformat_input_t * input,
488 vlib_cli_command_t * cmd_arg)
489{
490 udp_main_t *um = vnet_get_udp_main ();
491
492 clib_error_t *error = NULL;
493
494 if (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
495 return clib_error_return (0, "unknown input `%U'", format_unformat_error,
496 input);
497
498 udp_dst_port_info_t *port_info;
499 if (um->punt_unknown4)
500 {
501 vlib_cli_output (vm, "IPv4 UDP punt: enabled");
502 }
503 else
504 {
505 u8 *s = NULL;
506 vec_foreach (port_info, um->dst_port_infos[UDP_IP4])
507 {
508 if (udp_is_valid_dst_port (port_info->dst_port, 1))
509 {
510 s = format (s, (!s) ? "%d" : ", %d", port_info->dst_port);
511 }
512 }
513 s = format (s, "%c", 0);
514 vlib_cli_output (vm, "IPV4 UDP ports punt : %s", s);
515 }
516
517 if (um->punt_unknown6)
518 {
519 vlib_cli_output (vm, "IPv6 UDP punt: enabled");
520 }
521 else
522 {
523 u8 *s = NULL;
524 vec_foreach (port_info, um->dst_port_infos[UDP_IP6])
525 {
526 if (udp_is_valid_dst_port (port_info->dst_port, 01))
527 {
528 s = format (s, (!s) ? "%d" : ", %d", port_info->dst_port);
529 }
530 }
531 s = format (s, "%c", 0);
532 vlib_cli_output (vm, "IPV6 UDP ports punt : %s", s);
533 }
534
535 return (error);
536}
537/* *INDENT-OFF* */
538VLIB_CLI_COMMAND (show_tcp_punt_command, static) =
539{
540 .path = "show udp punt",
541 .short_help = "show udp punt [ipv4|ipv6]",
542 .function = show_udp_punt_fn,
543};
544/* *INDENT-ON* */
545
Dave Barach68b0fb02017-02-28 15:15:56 -0500546/*
547 * fd.io coding-style-patch-verification: ON
548 *
549 * Local Variables:
550 * eval: (c-set-style "gnu")
551 * End:
552 */