FD.io VPP  v19.08-27-gf4dcae4
Vector Packet Processing
http_server.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/vnet.h>
19 #include <vnet/session/session.h>
21 
22 typedef enum
23 {
26 
27 typedef struct
28 {
33 
34 typedef enum
35 {
40 typedef struct
41 {
42  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
43 #define _(type, name) type name;
45 #undef _
52 
53 typedef struct
54 {
58 
60 
62 
64 
65  /* Sever's event queue */
67 
68  /* API client handle */
70 
72 
73  /* process node index for evnt scheduling */
75 
76  tw_timer_wheel_2t_1w_2048sl_t tw;
78 
82  u8 *uri;
86 
88 
89 static void
91 {
92  clib_rwlock_reader_lock (&http_server_main.sessions_lock);
93 }
94 
95 static void
97 {
98  clib_rwlock_reader_unlock (&http_server_main.sessions_lock);
99 }
100 
101 static void
103 {
104  clib_rwlock_writer_lock (&http_server_main.sessions_lock);
105 }
106 
107 static void
109 {
110  clib_rwlock_writer_unlock (&http_server_main.sessions_lock);
111 }
112 
113 static http_session_t *
115 {
117  http_session_t *hs;
118  pool_get (hsm->sessions[thread_index], hs);
119  memset (hs, 0, sizeof (*hs));
120  hs->session_index = hs - hsm->sessions[thread_index];
121  hs->thread_index = thread_index;
122  hs->timer_handle = ~0;
123  return hs;
124 }
125 
126 static http_session_t *
127 http_server_session_get (u32 thread_index, u32 hs_index)
128 {
130  if (pool_is_free_index (hsm->sessions[thread_index], hs_index))
131  return 0;
132  return pool_elt_at_index (hsm->sessions[thread_index], hs_index);
133 }
134 
135 static void
137 {
139  pool_put (hsm->sessions[hs->thread_index], hs);
140  if (CLIB_DEBUG)
141  memset (hs, 0xfa, sizeof (*hs));
142 }
143 
144 static void
145 http_server_session_lookup_add (u32 thread_index, u32 s_index, u32 hs_index)
146 {
148  vec_validate (hsm->session_to_http_session[thread_index], s_index);
149  hsm->session_to_http_session[thread_index][s_index] = hs_index;
150 }
151 
152 static void
153 http_server_session_lookup_del (u32 thread_index, u32 s_index)
154 {
156  hsm->session_to_http_session[thread_index][s_index] = ~0;
157 }
158 
159 static http_session_t *
160 http_server_session_lookup (u32 thread_index, u32 s_index)
161 {
163  u32 hs_index;
164 
165  if (s_index < vec_len (hsm->session_to_http_session[thread_index]))
166  {
167  hs_index = hsm->session_to_http_session[thread_index][s_index];
168  return http_server_session_get (thread_index, hs_index);
169  }
170  return 0;
171 }
172 
173 
174 static void
176 {
177  u32 hs_handle;
178  hs_handle = hs->thread_index << 24 | hs->session_index;
179  clib_spinlock_lock (&http_server_main.tw_lock);
180  hs->timer_handle = tw_timer_start_2t_1w_2048sl (&http_server_main.tw,
181  hs_handle, 0, 60);
182  clib_spinlock_unlock (&http_server_main.tw_lock);
183 }
184 
185 static void
187 {
188  if (hs->timer_handle == ~0)
189  return;
190  clib_spinlock_lock (&http_server_main.tw_lock);
191  tw_timer_stop_2t_1w_2048sl (&http_server_main.tw, hs->timer_handle);
192  clib_spinlock_unlock (&http_server_main.tw_lock);
193 }
194 
195 static void
197 {
198  if (!hs)
199  return;
201  vec_free (hs->rx_buf);
204 }
205 
206 static void
208 {
209  vnet_disconnect_args_t _a = { 0 }, *a = &_a;
210  a->handle = hs->vpp_session_handle;
211  a->app_index = http_server_main.app_index;
213 }
214 
215 static void
217 {
221  vlib_node_t *n;
222  u32 node_index;
223  http_server_args **save_args;
224 
225  node_index = args->node_index;
226  ASSERT (node_index != 0);
227 
228  n = vlib_get_node (vm, node_index);
229  rt = vlib_node_get_runtime (vm, n->index);
230  save_args = vlib_node_get_runtime_data (vm, n->index);
231 
232  /* Reset process session pointer */
233  clib_mem_free (*save_args);
234  *save_args = 0;
235 
236  /* Turn off the process node */
237  vlib_node_set_state (vm, rt->node_index, VLIB_NODE_STATE_DISABLED);
238 
239  /* add node index to the freelist */
240  vec_add1 (hsm->free_http_cli_process_node_indices, node_index);
241 }
242 
243 /* *INDENT-OFF* */
244 static const char *http_ok =
245  "HTTP/1.1 200 OK\r\n";
246 
247 static const char *http_response =
248  "Content-Type: text/html\r\n"
249  "Expires: Mon, 11 Jan 1970 10:10:10 GMT\r\n"
250  "Connection: close \r\n"
251  "Pragma: no-cache\r\n"
252  "Content-Length: %d\r\n\r\n%s";
253 
254 static const char *http_error_template =
255  "HTTP/1.1 %s\r\n"
256  "Content-Type: text/html\r\n"
257  "Expires: Mon, 11 Jan 1970 10:10:10 GMT\r\n"
258  "Connection: close\r\n"
259  "Pragma: no-cache\r\n"
260  "Content-Length: 0\r\n\r\n";
261 
262 /* Header, including incantation to suppress favicon.ico requests */
263 static const char *html_header_template =
264  "<html><head><title>%v</title></head>"
265  "<link rel=\"icon\" href=\"data:,\">"
266  "<body><pre>";
267 
268 static const char *html_footer =
269  "</pre></body></html>\r\n";
270 
271 static const char *html_header_static =
272  "<html><head><title>static reply</title></head>"
273  "<link rel=\"icon\" href=\"data:,\">"
274  "<body><pre>hello</pre></body></html>\r\n";
275 /* *INDENT-ON* */
276 
277 static u8 *static_http;
278 static u8 *static_ok;
279 
280 static void
281 http_cli_output (uword arg, u8 * buffer, uword buffer_bytes)
282 {
283  u8 **output_vecp = (u8 **) arg;
284  u8 *output_vec;
285  u32 offset;
286 
287  output_vec = *output_vecp;
288 
289  offset = vec_len (output_vec);
290  vec_validate (output_vec, offset + buffer_bytes - 1);
291  clib_memcpy_fast (output_vec + offset, buffer, buffer_bytes);
292 
293  *output_vecp = output_vec;
294 }
295 
296 void
298 {
300  vnet_disconnect_args_t _a = { 0 }, *a = &_a;
302  f64 last_sent_timer = vlib_time_now (vm);
303  u32 offset, bytes_to_send;
304  f64 delay = 10e-3;
305 
306  bytes_to_send = vec_len (data);
307  offset = 0;
308 
309  while (bytes_to_send > 0)
310  {
311  int actual_transfer;
312 
313  actual_transfer = svm_fifo_enqueue
314  (hs->tx_fifo, bytes_to_send, data + offset);
315 
316  /* Made any progress? */
317  if (actual_transfer <= 0)
318  {
320  vlib_process_suspend (vm, delay);
322 
323  /* 10s deadman timer */
324  if (vlib_time_now (vm) > last_sent_timer + 10.0)
325  {
326  a->handle = hs->vpp_session_handle;
327  a->app_index = hsm->app_index;
329  break;
330  }
331  /* Exponential backoff, within reason */
332  if (delay < 1.0)
333  delay = delay * 2.0;
334  }
335  else
336  {
337  last_sent_timer = vlib_time_now (vm);
338  offset += actual_transfer;
339  bytes_to_send -= actual_transfer;
340 
341  if (svm_fifo_set_event (hs->tx_fifo))
342  session_send_io_evt_to_thread (hs->tx_fifo,
344  delay = 10e-3;
345  }
346  }
347 }
348 
349 static void
350 send_error (http_session_t * hs, char *str)
351 {
352  u8 *data;
353 
354  data = format (0, http_error_template, str);
355  send_data (hs, data);
356  vec_free (data);
357 }
358 
359 static uword
361  vlib_frame_t * f)
362 {
363  u8 *request = 0, *reply = 0, *http = 0, *html = 0;
365  http_server_args **save_args;
366  http_server_args *args;
367  unformat_input_t input;
368  http_session_t *hs;
369  int i;
370 
371  save_args = vlib_node_get_runtime_data (hsm->vlib_main, rt->node_index);
372  args = *save_args;
373 
375 
376  hs = http_server_session_get (args->thread_index, args->hs_index);
377  ASSERT (hs);
378 
379  request = hs->rx_buf;
380  if (vec_len (request) < 7)
381  {
382  send_error (hs, "400 Bad Request");
383  goto out;
384  }
385 
386  for (i = 0; i < vec_len (request) - 4; i++)
387  {
388  if (request[i] == 'G' &&
389  request[i + 1] == 'E' &&
390  request[i + 2] == 'T' && request[i + 3] == ' ')
391  goto found;
392  }
393 bad_request:
394  send_error (hs, "400 Bad Request");
395  goto out;
396 
397 found:
398  /* Lose "GET " */
399  vec_delete (request, i + 5, 0);
400 
401  /* Replace slashes with spaces, stop at the end of the path */
402  i = 0;
403  while (1)
404  {
405  if (request[i] == '/')
406  request[i] = ' ';
407  else if (request[i] == ' ')
408  {
409  /* vlib_cli_input is vector-based, no need for a NULL */
410  _vec_len (request) = i;
411  break;
412  }
413  i++;
414  /* Should never happen */
415  if (i == vec_len (request))
416  goto bad_request;
417  }
418 
419  /* Generate the html header */
420  html = format (0, html_header_template, request /* title */ );
421 
422  /* Run the command */
423  unformat_init_vector (&input, vec_dup (request));
424  vlib_cli_input (vm, &input, http_cli_output, (uword) & reply);
425  unformat_free (&input);
426  request = 0;
427 
428  /* Generate the html page */
429  html = format (html, "%v", reply);
430  html = format (html, html_footer);
431  /* And the http reply */
432  http = format (0, http_ok, vec_len (http_ok));
433  http = format (http, http_response, vec_len (html), html);
434 
435  /* Send it */
436  send_data (hs, http);
437 
438 out:
439  /* Cleanup */
441  vec_free (reply);
442  vec_free (html);
443  vec_free (http);
444 
445  http_process_free (args);
446  return (0);
447 }
448 
449 static void
451 {
452  char *name;
453  vlib_node_t *n;
455  vlib_main_t *vm = hsm->vlib_main;
457  http_server_args **save_args;
458 
460  {
462  vlib_node_set_state (vm, n->index, VLIB_NODE_STATE_POLLING);
463  _vec_len (hsm->free_http_cli_process_node_indices) = l - 1;
464  }
465  else
466  {
467  static vlib_node_registration_t r = {
468  .function = http_cli_process,
469  .type = VLIB_NODE_TYPE_PROCESS,
470  .process_log2_n_stack_bytes = 16,
471  .runtime_data_bytes = sizeof (void *),
472  };
473 
474  name = (char *) format (0, "http-cli-%d", l);
475  r.name = name;
476  vlib_register_node (vm, &r);
477  vec_free (name);
478 
479  n = vlib_get_node (vm, r.index);
480  }
481 
482  /* Save the node index in the args. It won't be zero. */
483  args->node_index = n->index;
484 
485  /* Save the args (pointer) in the node runtime */
486  save_args = vlib_node_get_runtime_data (vm, n->index);
487  *save_args = clib_mem_alloc (sizeof (*args));
488  clib_memcpy_fast (*save_args, args, sizeof (*args));
489 
491 }
492 
493 static void
495 {
496  alloc_http_process ((http_server_args *) cb_args);
497 }
498 
499 static int
501 {
502  u32 max_dequeue, cursize;
503  int n_read;
504 
505  cursize = vec_len (hs->rx_buf);
506  max_dequeue = svm_fifo_max_dequeue_cons (hs->rx_fifo);
507  if (PREDICT_FALSE (max_dequeue == 0))
508  return -1;
509 
510  vec_validate (hs->rx_buf, cursize + max_dequeue - 1);
511  n_read = app_recv_stream_raw (hs->rx_fifo, hs->rx_buf + cursize,
512  max_dequeue, 0, 0 /* peek */ );
513  ASSERT (n_read == max_dequeue);
514  if (svm_fifo_is_empty_cons (hs->rx_fifo))
515  svm_fifo_unset_event (hs->rx_fifo);
516 
517  _vec_len (hs->rx_buf) = cursize + n_read;
518  return 0;
519 }
520 
521 static int
523 {
524  http_server_args args;
525  http_session_t *hs;
526  int rv;
527 
529 
531  if (!hs || hs->session_state != HTTP_STATE_ESTABLISHED)
532  return -1;
533 
534  rv = session_rx_request (hs);
535  if (rv)
536  return rv;
537 
538  /* send the command to a new/recycled vlib process */
539  args.hs_index = hs->session_index;
540  args.thread_index = hs->thread_index;
541 
543 
544  /* Send RPC request to main thread */
545  if (vlib_get_thread_index () != 0)
547  sizeof (args));
548  else
549  alloc_http_process (&args);
550  return 0;
551 }
552 
553 static int
555 {
556  http_session_t *hs;
557  u32 request_len;
558  u8 *request = 0;
559  int i, rv;
560 
562  if (!hs || hs->session_state == HTTP_STATE_CLOSED)
563  return 0;
564 
565  /* ok 200 was sent */
566  if (hs->session_state == HTTP_STATE_OK_SENT)
567  goto send_data;
568 
569  rv = session_rx_request (hs);
570  if (rv)
571  goto wait_for_data;
572 
573  request = hs->rx_buf;
574  request_len = vec_len (request);
575  if (vec_len (request) < 7)
576  {
577  send_error (hs, "400 Bad Request");
578  goto close_session;
579  }
580 
581  for (i = 0; i < request_len - 4; i++)
582  {
583  if (request[i] == 'G' &&
584  request[i + 1] == 'E' &&
585  request[i + 2] == 'T' && request[i + 3] == ' ')
586  goto find_end;
587  }
588  send_error (hs, "400 Bad Request");
589  goto close_session;
590 
591 find_end:
592 
593  /* check for the end sequence: /r/n/r/n */
594  if (request[request_len - 1] != 0xa || request[request_len - 3] != 0xa
595  || request[request_len - 2] != 0xd || request[request_len - 4] != 0xd)
596  goto wait_for_data;
597 
598  /* send 200 OK first */
599  send_data (hs, static_ok);
600  hs->session_state = HTTP_STATE_OK_SENT;
601  goto postpone;
602 
603 send_data:
604  send_data (hs, static_http);
605 
609  return 0;
610 
611 postpone:
612  (void) svm_fifo_set_event (hs->rx_fifo);
614  return 0;
615 
616 wait_for_data:
617  return 0;
618 }
619 
620 static int
622 {
624  http_session_t *hs;
625 
626  hsm->vpp_queue[s->thread_index] =
628 
629  if (!hsm->is_static)
631 
634  hs->session_index);
635  hs->rx_fifo = s->rx_fifo;
636  hs->tx_fifo = s->tx_fifo;
639  hs->session_state = HTTP_STATE_ESTABLISHED;
641 
642  if (!hsm->is_static)
644 
646  return 0;
647 }
648 
649 static void
651 {
653  vnet_disconnect_args_t _a = { 0 }, *a = &_a;
654  http_session_t *hs;
655 
656  if (!hsm->is_static)
658 
661 
662  if (!hsm->is_static)
664 
665  a->handle = session_handle (s);
666  a->app_index = hsm->app_index;
668 }
669 
670 static void
672 {
674  vnet_disconnect_args_t _a = { 0 }, *a = &_a;
675  http_session_t *hs;
676 
677  if (!hsm->is_static)
679 
682 
683  if (!hsm->is_static)
685 
686  a->handle = session_handle (s);
687  a->app_index = hsm->app_index;
689 }
690 
691 static int
693  session_t * s, u8 is_fail)
694 {
695  clib_warning ("called...");
696  return -1;
697 }
698 
699 static int
700 http_server_add_segment_callback (u32 client_index, u64 segment_handle)
701 {
702  clib_warning ("called...");
703  return -1;
704 }
705 
707  .session_accept_callback = http_server_session_accept_callback,
708  .session_disconnect_callback = http_server_session_disconnect_callback,
709  .session_connected_callback = http_server_session_connected_callback,
710  .add_segment_callback = http_server_add_segment_callback,
711  .builtin_app_rx_callback = http_server_rx_callback,
712  .session_reset_callback = http_server_session_reset_callback
713 };
714 
715 static int
717 {
718  vnet_app_add_tls_cert_args_t _a_cert, *a_cert = &_a_cert;
719  vnet_app_add_tls_key_args_t _a_key, *a_key = &_a_key;
721  u64 options[APP_OPTIONS_N_OPTIONS];
722  vnet_app_attach_args_t _a, *a = &_a;
723  u32 segment_size = 128 << 20;
724 
725  clib_memset (a, 0, sizeof (*a));
726  clib_memset (options, 0, sizeof (options));
727 
728  if (hsm->private_segment_size)
729  segment_size = hsm->private_segment_size;
730 
731  a->api_client_index = ~0;
732  a->name = format (0, "test_http_server");
733  a->session_cb_vft = &http_server_session_cb_vft;
734  a->options = options;
735  a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
736  a->options[APP_OPTIONS_RX_FIFO_SIZE] =
737  hsm->fifo_size ? hsm->fifo_size : 8 << 10;
738  a->options[APP_OPTIONS_TX_FIFO_SIZE] =
739  hsm->fifo_size ? hsm->fifo_size : 32 << 10;
740  a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
742 
743  if (vnet_application_attach (a))
744  {
745  vec_free (a->name);
746  clib_warning ("failed to attach server");
747  return -1;
748  }
749  vec_free (a->name);
750  hsm->app_index = a->app_index;
751 
752  clib_memset (a_cert, 0, sizeof (*a_cert));
753  a_cert->app_index = a->app_index;
754  vec_validate (a_cert->cert, test_srv_crt_rsa_len);
756  vnet_app_add_tls_cert (a_cert);
757 
758  clib_memset (a_key, 0, sizeof (*a_key));
759  a_key->app_index = a->app_index;
760  vec_validate (a_key->key, test_srv_key_rsa_len);
762  vnet_app_add_tls_key (a_key);
763 
764  return 0;
765 }
766 
767 static int
769 {
771  vnet_listen_args_t _a, *a = &_a;
772  clib_memset (a, 0, sizeof (*a));
773  a->app_index = hsm->app_index;
774  a->uri = "tcp://0.0.0.0/80";
775  if (hsm->uri)
776  a->uri = (char *) hsm->uri;
777  return vnet_bind_uri (a);
778 }
779 
780 static void
782 {
783  http_session_t *hs;
784  uword hs_handle;
785  hs_handle = pointer_to_uword (hs_handlep);
786  hs = http_server_session_get (hs_handle >> 24, hs_handle & 0x00FFFFFF);
787  if (!hs)
788  return;
789  hs->timer_handle = ~0;
792 }
793 
794 static void
796 {
797  u32 hs_handle;
798  int i;
799 
800  for (i = 0; i < vec_len (expired_timers); i++)
801  {
802  /* Get session handle. The first bit is the timer id */
803  hs_handle = expired_timers[i] & 0x7FFFFFFF;
804  session_send_rpc_evt_to_thread (hs_handle >> 24,
806  uword_to_pointer (hs_handle, void *));
807  }
808 }
809 
810 static uword
812  vlib_frame_t * f)
813 {
815  f64 now, timeout = 1.0;
816  uword *event_data = 0;
817  uword __clib_unused event_type;
818 
819  while (1)
820  {
822  now = vlib_time_now (vm);
823  event_type = vlib_process_get_events (vm, (uword **) & event_data);
824 
825  /* expire timers */
826  clib_spinlock_lock (&http_server_main.tw_lock);
827  tw_timer_expire_timers_2t_1w_2048sl (&hsm->tw, now);
828  clib_spinlock_unlock (&http_server_main.tw_lock);
829 
830  vec_reset_length (event_data);
831  }
832  return 0;
833 }
834 
835 /* *INDENT-OFF* */
837 {
838  .function = http_server_process,
839  .type = VLIB_NODE_TYPE_PROCESS,
840  .name = "http-server-process",
841  .state = VLIB_NODE_STATE_DISABLED,
842 };
843 /* *INDENT-ON* */
844 
845 static int
847 {
850  u32 num_threads;
851  vlib_node_t *n;
852 
853  num_threads = 1 /* main thread */ + vtm->n_threads;
854  vec_validate (hsm->vpp_queue, num_threads - 1);
855  vec_validate (hsm->sessions, num_threads - 1);
856  vec_validate (hsm->session_to_http_session, num_threads - 1);
857 
859  clib_spinlock_init (&hsm->tw_lock);
860 
861  if (http_server_attach ())
862  {
863  clib_warning ("failed to attach server");
864  return -1;
865  }
866  if (http_server_listen ())
867  {
868  clib_warning ("failed to start listening");
869  return -1;
870  }
871 
872  /* Init timer wheel and process */
873  tw_timer_wheel_init_2t_1w_2048sl (&hsm->tw, http_expired_timers_dispatch,
874  1 /* timer interval */ , ~0);
876  VLIB_NODE_STATE_POLLING);
877  n = vlib_get_node (vm, http_server_process_node.index);
879 
880  return 0;
881 }
882 
883 static clib_error_t *
885  unformat_input_t * input,
886  vlib_cli_command_t * cmd)
887 {
889  unformat_input_t _line_input, *line_input = &_line_input;
890  u64 seg_size;
891  u8 *html;
892  int rv;
893 
894  hsm->prealloc_fifos = 0;
895  hsm->private_segment_size = 0;
896  hsm->fifo_size = 0;
897  hsm->is_static = 0;
898 
899  /* Get a line of input. */
900  if (!unformat_user (input, unformat_line_input, line_input))
901  goto start_server;
902 
903  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
904  {
905  if (unformat (line_input, "static"))
906  hsm->is_static = 1;
907  else
908  if (unformat (line_input, "prealloc-fifos %d", &hsm->prealloc_fifos))
909  ;
910  else if (unformat (line_input, "private-segment-size %U",
911  unformat_memory_size, &seg_size))
912  {
913  if (seg_size >= 0x100000000ULL)
914  {
915  vlib_cli_output (vm, "private segment size %llu, too large",
916  seg_size);
917  return 0;
918  }
919  hsm->private_segment_size = seg_size;
920  }
921  else if (unformat (line_input, "fifo-size %d", &hsm->fifo_size))
922  hsm->fifo_size <<= 10;
923  else if (unformat (line_input, "uri %s", &hsm->uri))
924  ;
925  else
926  return clib_error_return (0, "unknown input `%U'",
927  format_unformat_error, line_input);
928  }
929  unformat_free (line_input);
930 
931 start_server:
932 
933  if (hsm->my_client_index != (u32) ~ 0)
934  return clib_error_return (0, "test http server is already running");
935 
936  vnet_session_enable_disable (vm, 1 /* turn on TCP, etc. */ );
937 
938  if (hsm->is_static)
939  {
940  http_server_session_cb_vft.builtin_app_rx_callback =
942  html = format (0, html_header_static);
943  static_http = format (0, http_response, vec_len (html), html);
944  static_ok = format (0, http_ok);
945  }
946  rv = http_server_create (vm);
947  switch (rv)
948  {
949  case 0:
950  break;
951  default:
952  return clib_error_return (0, "server_create returned %d", rv);
953  }
954  return 0;
955 }
956 
957 /* *INDENT-OFF* */
958 VLIB_CLI_COMMAND (http_server_create_command, static) =
959 {
960  .path = "test http server",
961  .short_help = "test http server",
962  .function = http_server_create_command_fn,
963 };
964 /* *INDENT-ON* */
965 
966 static clib_error_t *
968 {
970 
971  hsm->my_client_index = ~0;
972  hsm->vlib_main = vm;
973  return 0;
974 }
975 
977 
978 /*
979 * fd.io coding-style-patch-verification: ON
980 *
981 * Local Variables:
982 * eval: (c-set-style "gnu")
983 * End:
984 */
static void http_server_session_timer_start(http_session_t *hs)
Definition: http_server.c:175
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:439
#define foreach_app_session_field
flag for dgram mode
static void clib_rwlock_reader_lock(clib_rwlock_t *p)
Definition: lock.h:148
static void http_server_sessions_reader_unlock(void)
Definition: http_server.c:96
static int app_recv_stream_raw(svm_fifo_t *f, u8 *buf, u32 len, u8 clear_evt, u8 peek)
vlib_main_t vlib_global_main
Definition: main.c:1937
#define CLIB_CACHE_LINE_ALIGN_MARK(mark)
Definition: cache.h:60
static uword http_server_process(vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f)
Definition: http_server.c:811
static_always_inline void clib_spinlock_unlock(clib_spinlock_t *p)
Definition: lock.h:100
static_always_inline void clib_spinlock_lock(clib_spinlock_t *p)
Definition: lock.h:78
static int http_server_create(vlib_main_t *vm)
Definition: http_server.c:846
static f64 vlib_process_wait_for_event_or_clock(vlib_main_t *vm, f64 dt)
Suspend a cooperative multi-tasking thread Waits for an event, or for the indicated number of seconds...
Definition: node_funcs.h:673
a
Definition: bitmap.h:538
static void clib_rwlock_writer_lock(clib_rwlock_t *p)
Definition: lock.h:171
static const char * html_header_template
Definition: http_server.c:263
svm_fifo_t * tx_fifo
svm_queue_t * vl_input_queue
Definition: http_server.c:66
static const char * http_response
Definition: http_server.c:247
u32 session_index
Index in thread pool where session was allocated.
unsigned long u64
Definition: types.h:89
static int session_rx_request(http_session_t *hs)
Definition: http_server.c:500
static svm_msg_q_t * session_main_get_vpp_event_queue(u32 thread_index)
Definition: session.h:554
u32 timer_handle
Timeout timer handle.
Definition: http_server.c:50
#define clib_memcpy_fast(a, b, c)
Definition: string.h:81
static void http_server_sessions_writer_unlock(void)
Definition: http_server.c:108
u32 index
Definition: node.h:279
static f64 vlib_time_now(vlib_main_t *vm)
Definition: main.h:258
static int http_server_session_connected_callback(u32 app_index, u32 api_context, session_t *s, u8 is_fail)
Definition: http_server.c:692
svm_fifo_t * rx_fifo
Pointers to rx/tx buffers.
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:522
u32 vpp_session_index
vpp session index, handle
Definition: http_server.c:48
void session_send_rpc_evt_to_thread(u32 thread_index, void *fp, void *rpc_args)
Definition: session.c:110
static int svm_fifo_is_empty_cons(svm_fifo_t *f)
Check if fifo is empty optimized for consumer.
Definition: svm_fifo.h:556
int i
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:989
clib_memset(h->entries, 0, sizeof(h->entries[0])*entries)
static void http_process_free(http_server_args *args)
Definition: http_server.c:216
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
static int http_server_rx_callback_static(session_t *s)
Definition: http_server.c:554
u8 data[128]
Definition: ipsec.api:249
struct _vnet_application_add_tls_cert_args_t vnet_app_add_tls_cert_args_t
static void http_server_session_lookup_add(u32 thread_index, u32 s_index, u32 hs_index)
Definition: http_server.c:145
#define pool_get(P, E)
Allocate an object E from a pool P (unspecified alignment).
Definition: pool.h:236
clib_error_t * vnet_app_add_tls_cert(vnet_app_add_tls_cert_args_t *a)
Definition: application.c:1300
unsigned char u8
Definition: types.h:56
struct _vnet_bind_args_t vnet_listen_args_t
static void alloc_http_process_callback(void *cb_args)
Definition: http_server.c:494
#define vec_reset_length(v)
Reset vector length to zero NULL-pointer tolerant.
double f64
Definition: types.h:142
static session_handle_t session_handle(session_t *s)
static void http_server_session_disconnect(http_session_t *hs)
Definition: http_server.c:207
static uword vlib_process_suspend(vlib_main_t *vm, f64 dt)
Suspend a vlib cooperative multi-tasking thread for a period of time.
Definition: node_funcs.h:422
static int http_server_session_accept_callback(session_t *s)
Definition: http_server.c:621
http_session_state_t
Definition: http_server.c:34
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:173
static uword vlib_process_get_events(vlib_main_t *vm, uword **data_vector)
Return the first event type which has occurred and a vector of per-event data of that type...
Definition: node_funcs.h:516
struct _vnet_disconnect_args_t vnet_disconnect_args_t
static const u32 test_srv_key_rsa_len
Definition: tls_test.h:77
static void http_expired_timers_dispatch(u32 *expired_timers)
Definition: http_server.c:795
static u32 svm_fifo_max_dequeue_cons(svm_fifo_t *f)
Fifo max bytes to dequeue optimized for consumer.
Definition: svm_fifo.h:489
foreach_app_session_field u32 thread_index
rx thread index
Definition: http_server.c:46
static int http_server_rx_callback(session_t *s)
Definition: http_server.c:522
static int http_server_listen()
Definition: http_server.c:768
#define clib_error_return(e, args...)
Definition: error.h:99
svm_msg_q_t ** vpp_queue
Definition: http_server.c:59
unsigned int u32
Definition: types.h:88
int session_send_io_evt_to_thread(svm_fifo_t *f, session_evt_type_t evt_type)
Definition: session.c:79
tw_timer_wheel_2t_1w_2048sl_t tw
Definition: http_server.c:76
static void http_server_sessions_writer_lock(void)
Definition: http_server.c:102
struct _vnet_app_attach_args_t vnet_app_attach_args_t
static void http_server_session_free(http_session_t *hs)
Definition: http_server.c:136
unformat_function_t unformat_line_input
Definition: format.h:283
static void clib_spinlock_init(clib_spinlock_t *p)
Definition: lock.h:61
static session_cb_vft_t http_server_session_cb_vft
Definition: http_server.c:706
clib_error_t * vnet_app_add_tls_key(vnet_app_add_tls_key_args_t *a)
Definition: application.c:1312
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:514
static void clib_rwlock_init(clib_rwlock_t *p)
Definition: lock.h:131
static u8 * static_ok
Definition: http_server.c:278
static void clib_rwlock_reader_unlock(clib_rwlock_t *p)
Definition: lock.h:163
u64 vpp_session_handle
Definition: http_server.c:49
static const char * html_header_static
Definition: http_server.c:271
static u8 * static_http
Definition: http_server.c:277
struct _unformat_input_t unformat_input_t
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:286
#define vec_dup(V)
Return copy of vector (no header, no alignment)
Definition: vec.h:375
int svm_fifo_enqueue(svm_fifo_t *f, u32 len, const u8 *src)
Enqueue data to fifo.
Definition: svm_fifo.c:807
static void * vlib_node_get_runtime_data(vlib_main_t *vm, u32 node_index)
Get node runtime private data by node index.
Definition: node_funcs.h:110
#define PREDICT_FALSE(x)
Definition: clib.h:111
clib_spinlock_t tw_lock
Definition: http_server.c:77
static void svm_fifo_unset_event(svm_fifo_t *f)
Unset fifo event flag.
Definition: svm_fifo.h:752
static const char * html_footer
Definition: http_server.c:268
Application session.
Definition: http_server.c:40
u32 node_index
Node index.
Definition: node.h:494
static const char test_srv_crt_rsa[]
Definition: tls_test.h:23
u8 name[64]
Definition: memclnt.api:152
clib_error_t * vnet_session_enable_disable(vlib_main_t *vm, u8 is_en)
Definition: session.c:1543
int vnet_application_attach(vnet_app_attach_args_t *a)
Attach application to vpp.
Definition: application.c:809
void unformat_init_vector(unformat_input_t *input, u8 *vector_string)
Definition: unformat.c:1037
static u8 svm_fifo_set_event(svm_fifo_t *f)
Set fifo event flag.
Definition: svm_fifo.h:739
static void clib_rwlock_writer_unlock(clib_rwlock_t *p)
Definition: lock.h:185
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:169
vlib_main_t * vlib_main
Definition: http_server.c:84
#define UNFORMAT_END_OF_INPUT
Definition: format.h:145
u32 runtime_index
Definition: node.h:282
static_always_inline uword vlib_get_thread_index(void)
Definition: threads.h:213
static int http_server_attach()
Definition: http_server.c:716
vlib_main_t * vm
Definition: buffer.c:312
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:341
vlib_node_registration_t http_server_process_node
(constructor) VLIB_REGISTER_NODE (http_server_process_node)
Definition: http_server.c:836
#define clib_warning(format, args...)
Definition: error.h:59
struct _stream_session_cb_vft session_cb_vft_t
static vlib_node_runtime_t * vlib_node_get_runtime(vlib_main_t *vm, u32 node_index)
Get node runtime by node index.
Definition: node_funcs.h:89
#define pool_is_free_index(P, I)
Use free bitmap to query whether given index is free.
Definition: pool.h:283
u32 ** session_to_http_session
Definition: http_server.c:57
static const char test_srv_key_rsa[]
Definition: tls_test.h:49
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:155
u8 * rx_buf
rx buffer
Definition: http_server.c:47
#define uword_to_pointer(u, type)
Definition: types.h:136
#define ASSERT(truth)
static http_session_t * http_server_session_get(u32 thread_index, u32 hs_index)
Definition: http_server.c:127
#define vec_delete(V, N, M)
Delete N elements starting at element M.
Definition: vec.h:784
u32 vlib_register_node(vlib_main_t *vm, vlib_node_registration_t *r)
Definition: node.c:520
static void clib_mem_free(void *p)
Definition: mem.h:226
struct _vnet_application_add_tls_key_args_t vnet_app_add_tls_key_args_t
static void http_server_session_lookup_del(u32 thread_index, u32 s_index)
Definition: http_server.c:153
static void vlib_node_set_state(vlib_main_t *vm, u32 node_index, vlib_node_state_t new_state)
Set node dispatch state.
Definition: node_funcs.h:148
static void http_server_session_timer_stop(http_session_t *hs)
Definition: http_server.c:186
static void * clib_mem_alloc(uword size)
Definition: mem.h:153
int vlib_cli_input(vlib_main_t *vm, unformat_input_t *input, vlib_cli_output_function_t *function, uword function_arg)
Definition: cli.c:726
static uword pointer_to_uword(const void *p)
Definition: types.h:131
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
u8 thread_index
Index of the thread that allocated the session.
uword * handler_by_get_request
Definition: http_server.c:61
static http_session_t * http_server_session_alloc(u32 thread_index)
Definition: http_server.c:114
static void http_server_session_cleanup_cb(void *hs_handlep)
Definition: http_server.c:781
struct _vlib_node_registration vlib_node_registration_t
static clib_error_t * http_server_main_init(vlib_main_t *vm)
Definition: http_server.c:967
http_server_main_t http_server_main
Definition: http_server.c:87
static void alloc_http_process(http_server_args *args)
Definition: http_server.c:450
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
void vlib_rpc_call_main_thread(void *callback, u8 *args, u32 arg_size)
Definition: threads.c:1829
volatile u8 session_state
State in session layer state machine.
static void close_session(http_session_t *hs)
u64 uword
Definition: types.h:112
int vnet_bind_uri(vnet_listen_args_t *a)
static void unformat_free(unformat_input_t *i)
Definition: format.h:163
static int http_server_add_segment_callback(u32 client_index, u64 segment_handle)
Definition: http_server.c:700
int vnet_disconnect_session(vnet_disconnect_args_t *a)
Definition: application.c:1064
vhost_user_req_t request
Definition: vhost_user.h:140
static clib_error_t * http_server_create_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: http_server.c:884
struct _svm_queue svm_queue_t
static const char * http_error_template
Definition: http_server.c:254
unformat_function_t unformat_memory_size
Definition: format.h:296
struct clib_bihash_value offset
template key/value backing page structure
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
static vlib_thread_main_t * vlib_get_thread_main()
Definition: global_funcs.h:32
static vlib_node_t * vlib_get_node(vlib_main_t *vm, u32 i)
Get vlib node by index.
Definition: node_funcs.h:59
static void http_server_session_cleanup(http_session_t *hs)
Definition: http_server.c:196
static const char * http_ok
Definition: http_server.c:244
http_session_t ** sessions
Definition: http_server.c:55
http_process_event_t
Definition: http_server.c:22
void vlib_start_process(vlib_main_t *vm, uword process_index)
Definition: main.c:1583
static http_session_t * http_server_session_lookup(u32 thread_index, u32 s_index)
Definition: http_server.c:160
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:768
static void http_server_session_reset_callback(session_t *s)
Definition: http_server.c:671
static void http_cli_output(uword arg, u8 *buffer, uword buffer_bytes)
Definition: http_server.c:281
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:978
static const u32 test_srv_crt_rsa_len
Definition: tls_test.h:47
void send_data(http_session_t *hs, u8 *data)
Definition: http_server.c:297
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:171
u32 * free_http_cli_process_node_indices
Definition: http_server.c:63
static void http_server_session_disconnect_callback(session_t *s)
Definition: http_server.c:650
static uword http_cli_process(vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f)
Definition: http_server.c:360
static void http_server_sessions_reader_lock(void)
Definition: http_server.c:90
static void send_error(http_session_t *hs, char *str)
Definition: http_server.c:350
clib_rwlock_t sessions_lock
Definition: http_server.c:56