FD.io VPP  v20.09-64-g4f7b92f0a
Vector Packet Processing
transport.c
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1 /*
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:
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 #include <vnet/session/transport.h>
17 #include <vnet/session/session.h>
18 #include <vnet/fib/fib.h>
19 
20 typedef struct local_endpoint_
21 {
23  int refcnt;
25 
26 /**
27  * Per-type vector of transport protocol virtual function tables
28  */
30 
31 /*
32  * Port allocator seed
33  */
35 
36 /*
37  * Local endpoints table
38  */
40 
41 /*
42  * Pool of local endpoints
43  */
45 
46 /*
47  * Local endpoints pool lock
48  */
50 
51 u8 *
52 format_transport_proto (u8 * s, va_list * args)
53 {
54  u32 transport_proto = va_arg (*args, u32);
55 
56  if (tp_vfts[transport_proto].transport_options.name)
57  s = format (s, "%s", tp_vfts[transport_proto].transport_options.name);
58  else
59  s = format (s, "n/a");
60 
61  return s;
62 }
63 
64 u8 *
65 format_transport_proto_short (u8 * s, va_list * args)
66 {
67  u32 transport_proto = va_arg (*args, u32);
68  char *short_name;
69 
70  short_name = tp_vfts[transport_proto].transport_options.short_name;
71  if (short_name)
72  s = format (s, "%s", short_name);
73  else
74  s = format (s, "NA");
75 
76  return s;
77 }
78 
79 u8 *
80 format_transport_connection (u8 * s, va_list * args)
81 {
82  u32 transport_proto = va_arg (*args, u32);
83  u32 conn_index = va_arg (*args, u32);
84  u32 thread_index = va_arg (*args, u32);
85  u32 verbose = va_arg (*args, u32);
86  transport_proto_vft_t *tp_vft;
88  u32 indent;
89 
90  tp_vft = transport_protocol_get_vft (transport_proto);
91  if (!tp_vft)
92  return s;
93 
94  s = format (s, "%U", tp_vft->format_connection, conn_index, thread_index,
95  verbose);
96  tc = tp_vft->get_connection (conn_index, thread_index);
97  if (tc && verbose > 1)
98  {
99  indent = format_get_indent (s) + 1;
101  s = format (s, "%Upacer: %U\n", format_white_space, indent,
102  format_transport_pacer, &tc->pacer, tc->thread_index);
103  s = format (s, "%Utransport: flags 0x%x\n", format_white_space, indent,
104  tc->flags);
105  }
106  return s;
107 }
108 
109 u8 *
111 {
112  u32 transport_proto = va_arg (*args, u32);
113  transport_proto_vft_t *tp_vft;
114 
115  tp_vft = transport_protocol_get_vft (transport_proto);
116  if (!tp_vft)
117  return s;
118 
119  s = (tp_vft->format_listener) (s, args);
120  return s;
121 }
122 
123 u8 *
125 {
126  u32 transport_proto = va_arg (*args, u32);
127  u32 listen_index = va_arg (*args, u32);
128  transport_proto_vft_t *tp_vft;
129 
130  tp_vft = transport_protocol_get_vft (transport_proto);
131  if (!tp_vft)
132  return s;
133 
134  s = format (s, "%U", tp_vft->format_half_open, listen_index);
135  return s;
136 }
137 
138 static u8
140 {
141  int i;
142 
143  if (strlen (str) > vec_len (input->buffer) - input->index)
144  return 0;
145 
146  for (i = 0; i < strlen (str); i++)
147  {
148  if (input->buffer[i + input->index] != str[i])
149  return 0;
150  }
151  return 1;
152 }
153 
154 uword
156 {
157  u32 *proto = va_arg (*args, u32 *);
158  transport_proto_vft_t *tp_vft;
159  u8 longest_match = 0, match;
160  char *str, *str_match = 0;
162 
163  for (tp = 0; tp < vec_len (tp_vfts); tp++)
164  {
165  tp_vft = &tp_vfts[tp];
166  str = tp_vft->transport_options.name;
167  if (!str)
168  continue;
169  if (unformat_transport_str_match (input, str))
170  {
171  match = strlen (str);
172  if (match > longest_match)
173  {
174  *proto = tp;
175  longest_match = match;
176  str_match = str;
177  }
178  }
179  }
180  if (longest_match)
181  {
182  (void) unformat (input, str_match);
183  return 1;
184  }
185 
186  return 0;
187 }
188 
189 u8 *
190 format_transport_protos (u8 * s, va_list * args)
191 {
192  transport_proto_vft_t *tp_vft;
193 
194  vec_foreach (tp_vft, tp_vfts)
195  s = format (s, "%s\n", tp_vft->transport_options.name);
196 
197  return s;
198 }
199 
200 u32
202  ip46_address_t * ip, u16 port)
203 {
205  int rv;
206 
207  kv.key[0] = ip->as_u64[0];
208  kv.key[1] = ip->as_u64[1];
209  kv.key[2] = (u64) port << 8 | (u64) proto;
210 
211  rv = clib_bihash_search_inline_24_8 (ht, &kv);
212  if (rv == 0)
213  return kv.value;
214 
215  return ENDPOINT_INVALID_INDEX;
216 }
217 
218 void
221 {
223 
224  kv.key[0] = te->ip.as_u64[0];
225  kv.key[1] = te->ip.as_u64[1];
226  kv.key[2] = (u64) te->port << 8 | (u64) proto;
227  kv.value = value;
228 
229  clib_bihash_add_del_24_8 (ht, &kv, 1);
230 }
231 
232 void
235 {
237 
238  kv.key[0] = te->ip.as_u64[0];
239  kv.key[1] = te->ip.as_u64[1];
240  kv.key[2] = (u64) te->port << 8 | (u64) proto;
241 
242  clib_bihash_add_del_24_8 (ht, &kv, 0);
243 }
244 
245 void
247  const transport_proto_vft_t * vft,
248  fib_protocol_t fib_proto, u32 output_node)
249 {
250  u8 is_ip4 = fib_proto == FIB_PROTOCOL_IP4;
251 
252  vec_validate (tp_vfts, transport_proto);
253  tp_vfts[transport_proto] = *vft;
254 
255  session_register_transport (transport_proto, vft, is_ip4, output_node);
256 }
257 
260  fib_protocol_t fib_proto, u32 output_node)
261 {
263  u8 is_ip4;
264 
265  transport_proto = session_add_transport_proto ();
266  is_ip4 = fib_proto == FIB_PROTOCOL_IP4;
267 
268  vec_validate (tp_vfts, transport_proto);
269  tp_vfts[transport_proto] = *vft;
270 
271  session_register_transport (transport_proto, vft, is_ip4, output_node);
272 
273  return transport_proto;
274 }
275 
276 /**
277  * Get transport virtual function table
278  *
279  * @param type - session type (not protocol type)
280  */
283 {
284  if (transport_proto >= vec_len (tp_vfts))
285  return 0;
286  return &tp_vfts[transport_proto];
287 }
288 
291 {
292  return tp_vfts[tp].transport_options.service_type;
293 }
294 
297 {
298  return tp_vfts[tp].transport_options.tx_type;
299 }
300 
301 void
302 transport_cleanup (transport_proto_t tp, u32 conn_index, u8 thread_index)
303 {
304  tp_vfts[tp].cleanup (conn_index, thread_index);
305 }
306 
307 void
309 {
310  if (tp_vfts[tp].cleanup)
311  tp_vfts[tp].cleanup_ho (conn_index);
312 }
313 
314 int
316 {
317  return tp_vfts[tp].connect (tep);
318 }
319 
320 void
321 transport_close (transport_proto_t tp, u32 conn_index, u8 thread_index)
322 {
323  tp_vfts[tp].close (conn_index, thread_index);
324 }
325 
326 void
327 transport_reset (transport_proto_t tp, u32 conn_index, u8 thread_index)
328 {
329  if (tp_vfts[tp].reset)
330  tp_vfts[tp].reset (conn_index, thread_index);
331  else
332  tp_vfts[tp].close (conn_index, thread_index);
333 }
334 
335 u32
337  transport_endpoint_t * tep)
338 {
339  return tp_vfts[tp].start_listen (session_index, tep);
340 }
341 
342 u32
344 {
345  return tp_vfts[tp].stop_listen (conn_index);
346 }
347 
348 u8
350 {
351  return (tp_vfts[tp].transport_options.service_type == TRANSPORT_SERVICE_CL);
352 }
353 
354 always_inline void
356  transport_endpoint_t * tep, u8 is_lcl)
357 {
358  if (is_lcl)
359  {
360  tep->port = tc->lcl_port;
361  tep->is_ip4 = tc->is_ip4;
362  clib_memcpy_fast (&tep->ip, &tc->lcl_ip, sizeof (tc->lcl_ip));
363  }
364  else
365  {
366  tep->port = tc->rmt_port;
367  tep->is_ip4 = tc->is_ip4;
368  clib_memcpy_fast (&tep->ip, &tc->rmt_ip, sizeof (tc->rmt_ip));
369  }
370 }
371 
372 void
374  u32 thread_index, transport_endpoint_t * tep,
375  u8 is_lcl)
376 {
377  if (tp_vfts[tp].get_transport_endpoint)
378  tp_vfts[tp].get_transport_endpoint (conn_index, thread_index, tep,
379  is_lcl);
380  else
381  {
383  tc = transport_get_connection (tp, conn_index, thread_index);
384  default_get_transport_endpoint (tc, tep, is_lcl);
385  }
386 }
387 
388 void
390  transport_endpoint_t * tep, u8 is_lcl)
391 {
392  if (tp_vfts[tp].get_transport_listener_endpoint)
393  tp_vfts[tp].get_transport_listener_endpoint (conn_index, tep, is_lcl);
394  else
395  {
397  tc = transport_get_listener (tp, conn_index);
398  default_get_transport_endpoint (tc, tep, is_lcl);
399  }
400 }
401 
402 #define PORT_MASK ((1 << 16)- 1)
403 
404 void
406 {
407  clib_spinlock_lock_if_init (&local_endpoints_lock);
408  pool_put_index (local_endpoints, tepi);
409  clib_spinlock_unlock_if_init (&local_endpoints_lock);
410 }
411 
414 {
415  local_endpoint_t *lep;
416  pool_get_zero (local_endpoints, lep);
417  return lep;
418 }
419 
420 void
421 transport_endpoint_cleanup (u8 proto, ip46_address_t * lcl_ip, u16 port)
422 {
423  local_endpoint_t *lep;
424  u32 lepi;
425 
426  /* Cleanup local endpoint if this was an active connect */
427  lepi = transport_endpoint_lookup (&local_endpoints_table, proto, lcl_ip,
428  clib_net_to_host_u16 (port));
429  if (lepi != ENDPOINT_INVALID_INDEX)
430  {
431  lep = pool_elt_at_index (local_endpoints, lepi);
432  if (!clib_atomic_sub_fetch (&lep->refcnt, 1))
433  {
435  &lep->ep);
436  transport_endpoint_del (lepi);
437  }
438  }
439 }
440 
441 static void
443 {
444  local_endpoint_t *lep;
445  clib_spinlock_lock_if_init (&local_endpoints_lock);
446  lep = transport_endpoint_new ();
447  clib_memcpy_fast (&lep->ep.ip, ip, sizeof (*ip));
448  lep->ep.port = port;
449  lep->refcnt = 1;
451  lep - local_endpoints);
452  clib_spinlock_unlock_if_init (&local_endpoints_lock);
453 }
454 
455 void
456 transport_share_local_endpoint (u8 proto, ip46_address_t * lcl_ip, u16 port)
457 {
458  local_endpoint_t *lep;
459  u32 lepi;
460 
461  lepi = transport_endpoint_lookup (&local_endpoints_table, proto, lcl_ip,
462  clib_net_to_host_u16 (port));
463  if (lepi != ENDPOINT_INVALID_INDEX)
464  {
465  lep = pool_elt_at_index (local_endpoints, lepi);
466  clib_atomic_add_fetch (&lep->refcnt, 1);
467  }
468 }
469 
470 /**
471  * Allocate local port and add if successful add entry to local endpoint
472  * table to mark the pair as used.
473  */
474 int
476 {
477  u16 min = 1024, max = 65535; /* XXX configurable ? */
478  int tries, limit;
479  u32 tei;
480 
481  limit = max - min;
482 
483  /* Only support active opens from thread 0 */
484  ASSERT (vlib_get_thread_index () == 0);
485 
486  /* Search for first free slot */
487  for (tries = 0; tries < limit; tries++)
488  {
489  u16 port = 0;
490 
491  /* Find a port in the specified range */
492  while (1)
493  {
495  if (PREDICT_TRUE (port >= min && port < max))
496  break;
497  }
498 
499  /* Look it up. If not found, we're done */
501  port);
502  if (tei == ENDPOINT_INVALID_INDEX)
503  {
504  transport_endpoint_mark_used (proto, ip, port);
505  return port;
506  }
507  }
508  return -1;
509 }
510 
511 static session_error_t
512 transport_get_interface_ip (u32 sw_if_index, u8 is_ip4, ip46_address_t * addr)
513 {
514  if (is_ip4)
515  {
517  ip4 = ip_interface_get_first_ip (sw_if_index, 1);
518  if (!ip4)
519  return SESSION_E_NOIP;
520  addr->ip4.as_u32 = ip4->as_u32;
521  }
522  else
523  {
524  ip6_address_t *ip6;
525  ip6 = ip_interface_get_first_ip (sw_if_index, 0);
526  if (ip6 == 0)
527  return SESSION_E_NOIP;
528  clib_memcpy_fast (&addr->ip6, ip6, sizeof (*ip6));
529  }
530  return 0;
531 }
532 
533 static session_error_t
535  transport_endpoint_t * rmt,
536  ip46_address_t * lcl_addr)
537 {
538  fib_node_index_t fei;
540 
541  if (sw_if_index == ENDPOINT_INVALID_INDEX)
542  {
543  /* Find a FIB path to the destination */
544  clib_memcpy_fast (&prefix.fp_addr, &rmt->ip, sizeof (rmt->ip));
545  prefix.fp_proto = rmt->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
546  prefix.fp_len = rmt->is_ip4 ? 32 : 128;
547 
548  ASSERT (rmt->fib_index != ENDPOINT_INVALID_INDEX);
549  fei = fib_table_lookup (rmt->fib_index, &prefix);
550 
551  /* Couldn't find route to destination. Bail out. */
552  if (fei == FIB_NODE_INDEX_INVALID)
553  return SESSION_E_NOROUTE;
554 
555  sw_if_index = fib_entry_get_resolving_interface (fei);
556  if (sw_if_index == ENDPOINT_INVALID_INDEX)
557  return SESSION_E_NOINTF;
558  }
559 
560  clib_memset (lcl_addr, 0, sizeof (*lcl_addr));
561  return transport_get_interface_ip (sw_if_index, rmt->is_ip4, lcl_addr);
562 }
563 
564 int
566  ip46_address_t * lcl_addr, u16 * lcl_port)
567 {
568  transport_endpoint_t *rmt = (transport_endpoint_t *) rmt_cfg;
569  session_error_t error;
570  int port;
571  u32 tei;
572 
573  /*
574  * Find the local address
575  */
576  if (ip_is_zero (&rmt_cfg->peer.ip, rmt_cfg->peer.is_ip4))
577  {
578  error = transport_find_local_ip_for_remote (rmt_cfg->peer.sw_if_index,
579  rmt, lcl_addr);
580  if (error)
581  return error;
582  }
583  else
584  {
585  /* Assume session layer vetted this address */
586  clib_memcpy_fast (lcl_addr, &rmt_cfg->peer.ip,
587  sizeof (rmt_cfg->peer.ip));
588  }
589 
590  /*
591  * Allocate source port
592  */
593  if (rmt_cfg->peer.port == 0)
594  {
595  port = transport_alloc_local_port (proto, lcl_addr);
596  if (port < 1)
597  return SESSION_E_NOPORT;
598  *lcl_port = port;
599  }
600  else
601  {
602  port = clib_net_to_host_u16 (rmt_cfg->peer.port);
603  *lcl_port = port;
605  lcl_addr, port);
606  if (tei != ENDPOINT_INVALID_INDEX)
607  return SESSION_E_PORTINUSE;
608 
609  transport_endpoint_mark_used (proto, lcl_addr, port);
610  }
611 
612  return 0;
613 }
614 
615 u8 *
616 format_clib_us_time (u8 * s, va_list * args)
617 {
618  clib_us_time_t t = va_arg (*args, clib_us_time_t);
619  if (t < 1e3)
620  s = format (s, "%u us", t);
621  else
622  s = format (s, "%.3f s", (f64) t * CLIB_US_TIME_PERIOD);
623  return s;
624 }
625 
626 u8 *
627 format_transport_pacer (u8 * s, va_list * args)
628 {
629  spacer_t *pacer = va_arg (*args, spacer_t *);
630  u32 thread_index = va_arg (*args, int);
631  clib_us_time_t now, diff;
632 
633  now = transport_us_time_now (thread_index);
634  diff = now - pacer->last_update;
635  s = format (s, "rate %lu bucket %lu t/p %.3f last_update %U idle %u",
636  pacer->bytes_per_sec, pacer->bucket, pacer->tokens_per_period,
637  format_clib_us_time, diff, pacer->idle_timeout_us);
638  return s;
639 }
640 
641 static inline u32
643 {
644  u64 n_periods = (time_now - pacer->last_update);
645  u64 inc;
646 
647  if (PREDICT_FALSE (n_periods > pacer->idle_timeout_us))
648  {
649  pacer->last_update = time_now;
650  pacer->bucket = TRANSPORT_PACER_MIN_BURST;
652  }
653 
654  if ((inc = (f32) n_periods * pacer->tokens_per_period) > 10)
655  {
656  pacer->last_update = time_now;
657  pacer->bucket = clib_min (pacer->bucket + inc, pacer->bytes_per_sec);
658  }
659 
660  return clib_min (pacer->bucket, TRANSPORT_PACER_MAX_BURST);
661 }
662 
663 static inline void
665 {
666  ASSERT (pacer->bucket >= bytes);
667  pacer->bucket -= bytes;
668 }
669 
670 static inline void
671 spacer_set_pace_rate (spacer_t * pacer, u64 rate_bytes_per_sec,
672  clib_us_time_t rtt)
673 {
674  ASSERT (rate_bytes_per_sec != 0);
675  pacer->bytes_per_sec = rate_bytes_per_sec;
676  pacer->tokens_per_period = rate_bytes_per_sec * CLIB_US_TIME_PERIOD;
677  pacer->idle_timeout_us = clib_max (rtt * TRANSPORT_PACER_IDLE_FACTOR,
679 }
680 
681 static inline u64
683 {
684  return pacer->bytes_per_sec;
685 }
686 
687 static inline void
688 spacer_reset (spacer_t * pacer, clib_us_time_t time_now, u64 bucket)
689 {
690  pacer->last_update = time_now;
691  pacer->bucket = bucket;
692 }
693 
694 void
696  u64 rate_bytes_per_sec, u32 start_bucket,
697  clib_us_time_t rtt)
698 {
699  spacer_set_pace_rate (&tc->pacer, rate_bytes_per_sec, rtt);
700  spacer_reset (&tc->pacer, transport_us_time_now (tc->thread_index),
701  start_bucket);
702 }
703 
704 void
706  u32 bucket)
707 {
708  spacer_reset (&tc->pacer, transport_us_time_now (tc->thread_index), bucket);
709 }
710 
711 void
713  u64 rate_bytes_per_sec,
714  u32 initial_bucket)
715 {
717  transport_connection_tx_pacer_reset (tc, rate_bytes_per_sec,
718  initial_bucket, 1e6);
719 }
720 
721 void
723  u64 bytes_per_sec, clib_us_time_t rtt)
724 {
725  spacer_set_pace_rate (&tc->pacer, bytes_per_sec, rtt);
726 }
727 
728 u32
730 {
731  return spacer_max_burst (&tc->pacer,
732  transport_us_time_now (tc->thread_index));
733 }
734 
735 u64
737 {
738  return spacer_pace_rate (&tc->pacer);
739 }
740 
741 void
743 {
745  spacer_update_bucket (&tc->pacer, bytes);
746 }
747 
748 void
750  u32 bytes)
751 {
752  spacer_update_bucket (&tc->pacer, bytes);
753 }
754 
755 void
757 {
758  tc->flags &= ~TRANSPORT_CONNECTION_F_DESCHED;
760  if (transport_max_tx_dequeue (tc))
762  else
763  {
764  session_t *s = session_get (tc->s_index, tc->thread_index);
767  if (svm_fifo_set_event (s->tx_fifo))
769  }
770 }
771 
772 void
773 transport_update_time (clib_time_type_t time_now, u8 thread_index)
774 {
776  vec_foreach (vft, tp_vfts)
777  {
778  if (vft->update_time)
779  (vft->update_time) (time_now, thread_index);
780  }
781 }
782 
783 void
785 {
787  vec_foreach (vft, tp_vfts)
788  {
789  if (vft->enable)
790  (vft->enable) (vm, is_en);
791  }
792 }
793 
794 void
796 {
799  u32 num_threads;
800 
801  if (smm->local_endpoints_table_buckets == 0)
802  smm->local_endpoints_table_buckets = 250000;
803  if (smm->local_endpoints_table_memory == 0)
804  smm->local_endpoints_table_memory = 512 << 20;
805 
806  /* Initialize [port-allocator] random number seed */
808 
809  clib_bihash_init_24_8 (&local_endpoints_table, "local endpoints table",
812  num_threads = 1 /* main thread */ + vtm->n_threads;
813  if (num_threads > 1)
814  clib_spinlock_init (&local_endpoints_lock);
815 }
816 
817 /*
818  * fd.io coding-style-patch-verification: ON
819  *
820  * Local Variables:
821  * eval: (c-set-style "gnu")
822  * End:
823  */
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:509
fib_protocol_t fp_proto
protocol type
Definition: fib_types.h:212
void transport_close(transport_proto_t tp, u32 conn_index, u8 thread_index)
Definition: transport.c:321
#define ENDPOINT_INVALID_INDEX
u8 * format_transport_connection(u8 *s, va_list *args)
Definition: transport.c:80
u32 transport_endpoint_lookup(transport_endpoint_table_t *ht, u8 proto, ip46_address_t *ip, u16 port)
Definition: transport.c:201
#define clib_min(x, y)
Definition: clib.h:327
f64 clib_time_type_t
Definition: time.h:203
u8 * format_transport_proto_short(u8 *s, va_list *args)
Definition: transport.c:65
static local_endpoint_t * local_endpoints
Definition: transport.c:44
void transport_get_listener_endpoint(transport_proto_t tp, u32 conn_index, transport_endpoint_t *tep, u8 is_lcl)
Definition: transport.c:389
transport_proto
Definition: session.api:22
svm_fifo_t * tx_fifo
static void transport_endpoint_mark_used(u8 proto, ip46_address_t *ip, u16 port)
Definition: transport.c:442
#define clib_atomic_add_fetch(a, b)
Definition: atomics.h:30
#define pool_get_zero(P, E)
Allocate an object E from a pool P and zero it.
Definition: pool.h:255
void transport_endpoint_table_add(transport_endpoint_table_t *ht, u8 proto, transport_endpoint_t *te, u32 value)
Definition: transport.c:219
void transport_share_local_endpoint(u8 proto, ip46_address_t *lcl_ip, u16 port)
Definition: transport.c:456
#define PREDICT_TRUE(x)
Definition: clib.h:121
unsigned long u64
Definition: types.h:89
void * ip_interface_get_first_ip(u32 sw_if_index, u8 is_ip4)
Definition: ip_interface.c:174
transport_proto_t session_add_transport_proto(void)
Definition: session.c:1602
#define clib_memcpy_fast(a, b, c)
Definition: string.h:81
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
static transport_endpoint_table_t local_endpoints_table
Definition: transport.c:39
static_always_inline void clib_spinlock_unlock_if_init(clib_spinlock_t *p)
Definition: lock.h:127
static u64 clib_cpu_time_now(void)
Definition: time.h:81
static void spacer_reset(spacer_t *pacer, clib_us_time_t time_now, u64 bucket)
Definition: transport.c:688
u8 * format_transport_protos(u8 *s, va_list *args)
Definition: transport.c:190
static u32 format_get_indent(u8 *s)
Definition: format.h:72
transport_tx_fn_type_t transport_protocol_tx_fn_type(transport_proto_t tp)
Definition: transport.c:296
vlib_main_t * vm
Definition: in2out_ed.c:1582
u32 transport_start_listen(transport_proto_t tp, u32 session_index, transport_endpoint_t *tep)
Definition: transport.c:336
static session_t * session_get(u32 si, u32 thread_index)
Definition: session.h:301
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
vl_api_prefix_t prefix
Definition: ip.api:144
struct local_endpoint_ local_endpoint_t
u32 local_endpoints_table_memory
Transport table (preallocation) size parameters.
Definition: session.h:190
void transport_endpoint_del(u32 tepi)
Definition: transport.c:405
vhost_vring_addr_t addr
Definition: vhost_user.h:111
struct _spacer spacer_t
unsigned char u8
Definition: types.h:56
enum fib_protocol_t_ fib_protocol_t
Protocol Type.
double f64
Definition: types.h:142
void transport_update_time(clib_time_type_t time_now, u8 thread_index)
Definition: transport.c:773
vl_api_ip6_address_t ip6
Definition: one.api:424
u8 * format_white_space(u8 *s, va_list *va)
Definition: std-formats.c:129
static u32 svm_fifo_max_dequeue_cons(svm_fifo_t *f)
Fifo max bytes to dequeue optimized for consumer.
Definition: svm_fifo.h:404
Aggregate type for a prefix.
Definition: fib_types.h:203
int transport_alloc_local_endpoint(u8 proto, transport_endpoint_cfg_t *rmt_cfg, ip46_address_t *lcl_addr, u16 *lcl_port)
Definition: transport.c:565
unsigned int u32
Definition: types.h:88
u16 fp_len
The mask length.
Definition: fib_types.h:207
static clib_spinlock_t local_endpoints_lock
Definition: transport.c:49
void transport_reset(transport_proto_t tp, u32 conn_index, u8 thread_index)
Definition: transport.c:327
fib_node_index_t fib_table_lookup(u32 fib_index, const fib_prefix_t *prefix)
Perfom a longest prefix match in the non-forwarding table.
Definition: fib_table.c:68
struct _transport_proto_vft transport_proto_vft_t
static void clib_spinlock_init(clib_spinlock_t *p)
Definition: lock.h:63
transport_proto_vft_t * transport_protocol_get_vft(transport_proto_t transport_proto)
Get transport virtual function table.
Definition: transport.c:282
transport_endpoint_t ep
Definition: transport.c:22
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:534
void transport_endpoint_table_del(transport_endpoint_table_t *ht, u8 proto, transport_endpoint_t *te)
Definition: transport.c:233
transport_service_type_t transport_protocol_service_type(transport_proto_t tp)
Definition: transport.c:290
void transport_get_endpoint(transport_proto_t tp, u32 conn_index, u32 thread_index, transport_endpoint_t *tep, u8 is_lcl)
Definition: transport.c:373
ip46_address_t fp_addr
The address type is not deriveable from the fp_addr member.
Definition: fib_types.h:226
vl_api_ip_proto_t proto
Definition: acl_types.api:50
struct _unformat_input_t unformat_input_t
unsigned short u16
Definition: types.h:57
static session_error_t transport_get_interface_ip(u32 sw_if_index, u8 is_ip4, ip46_address_t *addr)
Definition: transport.c:512
static void cleanup(void)
Definition: client.c:120
void transport_connection_tx_pacer_init(transport_connection_t *tc, u64 rate_bytes_per_sec, u32 initial_bucket)
Initialize tx pacer for connection.
Definition: transport.c:712
enum transport_service_type_ transport_service_type_t
#define PREDICT_FALSE(x)
Definition: clib.h:120
#define always_inline
Definition: ipsec.h:28
vl_api_ip4_address_t ip4
Definition: one.api:376
static void svm_fifo_unset_event(svm_fifo_t *f)
Unset fifo event flag.
Definition: svm_fifo.h:714
transport_proto_vft_t * tp_vfts
Per-type vector of transport protocol virtual function tables.
Definition: transport.c:29
static u8 transport_connection_is_tx_paced(transport_connection_t *tc)
Check if transport connection is paced.
Definition: transport.h:317
void transport_connection_tx_pacer_reset(transport_connection_t *tc, u64 rate_bytes_per_sec, u32 start_bucket, clib_us_time_t rtt)
Definition: transport.c:695
void transport_cleanup(transport_proto_t tp, u32 conn_index, u8 thread_index)
Definition: transport.c:302
u32 transport_stop_listen(transport_proto_t tp, u32 conn_index)
Definition: transport.c:343
u8 * format_clib_us_time(u8 *s, va_list *args)
Definition: transport.c:616
u32 fib_entry_get_resolving_interface(fib_node_index_t entry_index)
Definition: fib_entry.c:1458
#define clib_atomic_sub_fetch(a, b)
Definition: atomics.h:31
static u8 svm_fifo_set_event(svm_fifo_t *f)
Set fifo event flag.
Definition: svm_fifo.h:701
void transport_init(void)
Definition: transport.c:795
void transport_connection_reschedule(transport_connection_t *tc)
Definition: transport.c:756
static_always_inline uword vlib_get_thread_index(void)
Definition: threads.h:219
int transport_connect(transport_proto_t tp, transport_endpoint_cfg_t *tep)
Definition: transport.c:315
static transport_connection_t * transport_get_connection(transport_proto_t tp, u32 conn_index, u8 thread_index)
Definition: transport.h:149
sll srl srl sll sra u16x4 i
Definition: vector_sse42.h:317
#define PORT_MASK
Definition: transport.c:402
static void default_get_transport_endpoint(transport_connection_t *tc, transport_endpoint_t *tep, u8 is_lcl)
Definition: transport.c:355
struct _transport_connection transport_connection_t
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:30
void transport_enable_disable(vlib_main_t *vm, u8 is_en)
Definition: transport.c:784
void transport_endpoint_cleanup(u8 proto, ip46_address_t *lcl_ip, u16 port)
Definition: transport.c:421
void transport_register_protocol(transport_proto_t transport_proto, const transport_proto_vft_t *vft, fib_protocol_t fib_proto, u32 output_node)
Register transport virtual function table.
Definition: transport.c:246
static clib_us_time_t transport_us_time_now(u32 thread_index)
Definition: session.h:544
static u32 transport_max_tx_dequeue(transport_connection_t *tc)
Definition: session.h:503
static u64 spacer_pace_rate(spacer_t *pacer)
Definition: transport.c:682
#define TRANSPORT_PACER_MIN_IDLE
Definition: transport.h:26
#define CLIB_US_TIME_PERIOD
Definition: time.h:206
u8 value
Definition: qos.api:54
#define pool_put_index(p, i)
Free pool element with given index.
Definition: pool.h:331
#define ASSERT(truth)
uword unformat_transport_proto(unformat_input_t *input, va_list *args)
Definition: transport.c:155
void transport_connection_tx_pacer_reset_bucket(transport_connection_t *tc, u32 bucket)
Reset tx pacer bucket.
Definition: transport.c:705
#define TRANSPORT_PACER_MAX_BURST
Definition: transport.h:24
void sesssion_reschedule_tx(transport_connection_t *tc)
Definition: session.c:150
void transport_connection_update_tx_bytes(transport_connection_t *tc, u32 bytes)
Update tx bytes for paced transport connection.
Definition: transport.c:742
#define TRANSPORT_PACER_MIN_BURST
Definition: transport.h:23
u8 * format_transport_half_open_connection(u8 *s, va_list *args)
Definition: transport.c:124
enum _transport_proto transport_proto_t
#define clib_max(x, y)
Definition: clib.h:320
static session_error_t transport_find_local_ip_for_remote(u32 sw_if_index, transport_endpoint_t *rmt, ip46_address_t *lcl_addr)
Definition: transport.c:534
void transport_connection_tx_pacer_update(transport_connection_t *tc, u64 bytes_per_sec, clib_us_time_t rtt)
Update tx pacer pacing rate.
Definition: transport.c:722
float f32
Definition: types.h:143
u8 ip_is_zero(ip46_address_t *ip46_address, u8 is_ip4)
Definition: ip.c:20
void transport_connection_tx_pacer_update_bytes(transport_connection_t *tc, u32 bytes)
Definition: transport.c:749
static u32 port_allocator_seed
Definition: transport.c:34
static local_endpoint_t * transport_endpoint_new(void)
Definition: transport.c:413
u32 local_endpoints_table_buckets
Definition: session.h:191
vl_api_address_t ip
Definition: l2.api:501
#define FIB_NODE_INDEX_INVALID
Definition: fib_types.h:31
static u32 spacer_max_burst(spacer_t *pacer, clib_us_time_t time_now)
Definition: transport.c:642
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
static void spacer_update_bucket(spacer_t *pacer, u32 bytes)
Definition: transport.c:664
static void spacer_set_pace_rate(spacer_t *pacer, u64 rate_bytes_per_sec, clib_us_time_t rtt)
Definition: transport.c:671
u64 uword
Definition: types.h:112
connectionless service
u8 * format_transport_listen_connection(u8 *s, va_list *args)
Definition: transport.c:110
transport_proto_t transport_register_new_protocol(const transport_proto_vft_t *vft, fib_protocol_t fib_proto, u32 output_node)
Definition: transport.c:259
u8 * format_transport_pacer(u8 *s, va_list *args)
Definition: transport.c:627
u16 port
Definition: lb_types.api:72
static u32 random_u32(u32 *seed)
32-bit random number generator
Definition: random.h:69
Connection descheduled by the session layer.
static vlib_thread_main_t * vlib_get_thread_main()
Definition: global_funcs.h:32
#define vec_foreach(var, vec)
Vector iterator.
enum session_error_ session_error_t
void transport_cleanup_half_open(transport_proto_t tp, u32 conn_index)
Definition: transport.c:308
clib_bihash_24_8_t transport_endpoint_table_t
static session_main_t * vnet_get_session_main()
Definition: session.h:613
int transport_alloc_local_port(u8 proto, ip46_address_t *ip)
Allocate local port and add if successful add entry to local endpoint table to mark the pair as used...
Definition: transport.c:475
static transport_connection_t * transport_get_listener(transport_proto_t tp, u32 conn_index)
Definition: transport.h:156
u64 clib_us_time_t
Definition: time.h:204
void session_register_transport(transport_proto_t transport_proto, const transport_proto_vft_t *vft, u8 is_ip4, u32 output_node)
Initialize session layer for given transport proto and ip version.
Definition: session.c:1572
enum transport_dequeue_type_ transport_tx_fn_type_t
static_always_inline void clib_spinlock_lock_if_init(clib_spinlock_t *p)
Definition: lock.h:104
u8 transport_protocol_is_cl(transport_proto_t tp)
Definition: transport.c:349
#define TRANSPORT_PACER_IDLE_FACTOR
Definition: transport.h:27
u8 * format_transport_proto(u8 *s, va_list *args)
Definition: transport.c:52
u32 transport_connection_tx_pacer_burst(transport_connection_t *tc)
Get tx pacer max burst.
Definition: transport.c:729
u64 transport_connection_tx_pacer_rate(transport_connection_t *tc)
Get tx pacer current rate.
Definition: transport.c:736
static u8 unformat_transport_str_match(unformat_input_t *input, const char *str)
Definition: transport.c:139
vl_api_interface_index_t sw_if_index
Definition: wireguard.api:33
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:978